P.PB series harrow bucket rock loader is mainly used for loading operation in coal mines, metallurgical mines, tunnels and other engineering roadways.
The main part adopts planetary gear transmission. This series of rake bucket rock loading machine has the characteristics of high rock loading efficiency, simple structure, good reliability, convenient operation, and wide application range. It can be used not only on level lanes, but also below 30 °. The use of inclined lanes is a major mechanical preparation for increasing the speed of tunnelling and realizing the mechanization of tunnelling.
The PB type rake bucket rock loader is equipped with a mechanized shunting disk to speed up the shunting operation, which can better meet the requirements of large cross section and large volume. When the shunting disk is removed, it can also be used as a P type rake rocker. Machine use.
(A) type bucket rake machine has pneumatic cart cylinder. After the mine cart is full, the heavy cart can be pushed out by the pneumatic cart cylinder to reduce the labor intensity of the workers, shorten the transfer time, and increase the driving speed.
|project||P15 (B)||P30B (A)||P60B (A)||P90B||P120B (A)||P150B|
|Bucket volume m³||0.15||0.30||0.60||0.90||1.20||1.50|
|Technical productivity m³ / h||15-25||35-50||70-110||95-140||120-180||150-220|
|Gauge mm||600||600 900||600 900||600 900||600 900 1500||1500|
|Traction force of main rope kN||7.2-10.4||12.3-18.5||20.0-28.0||31.0-50.0||37.0-55.0||52.0-72.0|
|Wire rope diameter mm||12.5||12.5-15.5||15.5||17.0||18.5||20.0|
|electric motor||Power kW||YBB11-4 11||YBB17-4 17||YBB30-4 30||YBB45-4A 45||55||75|
|Working voltage V||380/660||380/660||380/660||380/660||380/660||380/660|
| Outside dimensions |
|width|| 1170 ||1305||1850||2050||2250||2400|
|Total weight × 103kg||2.50||4.75||6.50||9.80||12.50||15.00|
Planetary drive rake bucket rock loader (type code)
100 times the bucket volume (main parameters
Mine flameproof type (supplementary feature code)
The second improvement (modified serial number
The P-type harrow bucket rock loader is to pull the main rope and tail rope through the two drums of the winch to make the rake bucket reciprocate to pick the rocks into the trough, and the unloading mouth of the unloading trough is discharged into the mine car or bucket. , So as to achieve rock loading operations.
The PB type rake bucket rock loader has a shunting disk. The shunting disk is a mobile turnout similar to a steel plate structure. The shunting disk body pulls the air-powered shunting winch for empty mine cars, the air cylinder of the empty car cart, and the heavy truck. The cart air cylinder and the pneumatic operating system are composed, and the host and the shunting disc are connected by a hinge.
(A) Harrow bucket rock loader is equipped with a pneumatic cart system, which is used to launch heavy mining carts when working on level roads.
??????,??????,????????????????????????? Fixed ?: fixed on the head to suspend the tail wheel. The fixed wedge consists of a tight wedge and a wire rope collar with a tapered sleeve at the wedge.
????????????,???????,??????????????????????? Tail wheel: It is hung on a fixed wedge to guide the tail rope and return the rake bucket to the head. It is mainly composed of side plates, sheaves, spindles, hooks and other main parts.
?????????????????????,?????? Rake bucket: It is used for reciprocating movement under the traction of the main rope and the tail rope to pick up rocks, which can be used for leveling alleys. And sloped roadway. Harrow teeth can be replaced after wear.
?????????????????? Operating mechanism; It consists of two sets of operating levers, pull rods, adjusting screws, etc. One end of the adjusting screw is connected to the brake belt of the winch, and the opening and closing of the brake belt is controlled by a joystick, and the two drums of the winch are respectively controlled. The joystick can be installed on the left or right side of the winch for operation.
????????????????????????????????? Winch: It consists of a motor, a reducer, two planetary drive rollers, two sets of brakes and auxiliary brake belts. The brake actually acts as a clutch, controlling the two rollers separately.
When working, the brake on the working drum is braked to stop the internal gear, and the planetary gear is driven along the internal gear by the central wheel, so that the planetary wheel carrier drives the drum to rotate and wind the wire rope to pull the rake bucket, so that the rake bucket After loading vermiculite head-to-head, discharge along the trough to the discharge port.
When returning, release the brake of the working drum, brake the brake of the idle drum, and pull the bucket back to the head by the tail rope according to the above principle.
Because the number of teeth of the gears in the two drums is different, the rotation speeds of the two drums are also different, and the idle drum has a higher rope speed than the work drum.
In order to prevent the drum from rotating due to the inertia of the wire rope after parking, the two ropes are equipped with two sets of auxiliary brakes to prevent the drum from continuing to rotate due to inertia.
????????????,??????????????,??????????? Trolley: It consists of frame, wheel pair, bumper , etc. It is the frame and walking part of the rake bucket rock loader, which bears the entire weight of the rock loader. A winch, a steering mechanism, a pneumatic system are installed on the trolley, and brackets and pillars supporting the middle slot are installed. The trolley is equipped with four sets of rail clamps at the front and rear of the trolley, which are used to fix the machine during rock loading on flat lanes.
?????????????,????????????? Guide wheels and supporting wheels: installed in the middle and end of the rake bucket rocker to guide and change the direction of the wire rope. It consists of side plates, sheaves, mandrels, rolling bearings and other parts, and adopts a dust-proof structure to extend its service life.
????????????,?????????????????(????)???????????????????,?????????,?????(????)??????????????? The feed trough, middle trough, (middle indirect trough), and unloading trough are the parts where vermiculite is picked up by the rake bucket. The unloading port is unloaded to the mine car or bucket, the middle tank is installed on the trolley, and the feeding tank, (middle indirect tank), and unloading tank are connected to the front and back respectively.
A lifting device is installed in the middle of the feed trough to adjust the height of the dustpan. The baffle is equipped with baffles on both sides in front of it to guide the bucket into the trough. The middle groove has two curved bends. In order to consider wear and easy replacement, the bend is equipped with a detachable wear-resistant curved plate. The end of the unloading groove is equipped with a spring bumper. The mine truck and the harrow bucket have a buffering effect. .
???????????,??????,????????,????????????????????? Pneumatic system: In order to ensure the reliable operation of the pneumatic system, measures such as pressure filtering and lubrication of the oil injector are adopted, which are composed of a coarse filter air bag, an oil mist device, a rotary valve, and a cart cylinder. The cart cylinder is mainly composed of a cylinder barrel, a piston rod, a piston, front and rear covers, a Y-shaped polyurethane sealing ring, etc. The front and rear ends of the cylinder have air cushion structures to ensure smooth operation. The top of the piston rod and the bumper head are equipped with springs to Prevent damage to the piston rod when the minecart hits.
????????????????,???????????????,????????????????????????,???????????????????????? Electrical part: All components used are explosion-proof products for mining, which can be used in mines with biogas and coal dust explosions. The explosion-proof control box can adapt to the industrial and mining conditions with large fluctuations in head voltage and anti-dazzling flameproof. Lights, explosion-proof control buttons, explosion-proof motors, etc.
??????????????????????,?????????????????,????????????????,????????????????????????????,?????????? Shunting disc part: The purpose of using the shunting disc is to make the turnout and the yard closely follow the rake bucket rock loader. The shunting disc is a mobile turnout floating on the track, and moves forward with the continuous advance of the rake bucket rock loader. Push and use the wind-driven winch and two wind-driven cart cylinders to mechanize the shunting operation of empty and heavy trucks, so it can speed up the loading work. The shunting disk body is assembled from four 1200mm wide and 14mm thick fierce steel plates. The disk body is equipped with components such as a pneumatic shunting winch, an empty car traversing cart cylinder and a pneumatic console.
After firing the gun, first make a hole in the upper part of the head (or use the remaining gun holes), and install the fixing wedge. When installing the fixing wedge, first place the end of the wire rope collar with the cone sleeve into the drilled hole, and then insert the fixing wedge And when tightening, when disassembling, tap the end of the wedge tightly with a hammer to loosen the wedge, and then pull out the tight wedge first and then pull out the wire rope collar. The holes for installing the fixing wedges have an offset angle of 5 ° to 7 ° from the working surface, so that the fixing wedges cannot be easily pulled out.
When the rake bucket rock loader is used for rock loading in inclined tunnels, in addition to using the original rail clamp, a car blocking device should be added to prevent the machine from sliding down to ensure safety and reliability.
In order to ensure high productivity and facilitate the laying of tracks, the rake bucket rock loader should be no more than 15m from the head when working. In order to avoid damage to the machine when firing, the machine is generally not less than 6m from the head (Figure 6).
Shunting disc movement: The rope of the winch and wind winch of the rake bucket rocker is passed around the sheaves hanging on the track, fixed by bolts in the steel plate holes on the exit side of the heavy truck, and after the main rope of the winch is pulled out Also fixed on the rails. Then start and control the wind-driven winch and rake bucket winch, the shunting disc and rake bucket rock loader can be moved backward, and it can stop when the track is exposed outside the dustpan. After nailing the road, use a rake winch to pull the rock loading machine and the shunting disk to the front.
After the fixed wedge is installed, the tail wheel can be suspended on the wire rope collar. The suspension position of the tail wheel depends on the situation of the roadway. Generally, it is better to hang above the head rock pile above 1000mm. In order to reduce the auxiliary labor and improve the efficiency of mechanical rock loading, the hanging position should be moved left and right according to the rock accumulation condition, so as to remove the rocks on the middle and sides.
When suspending and removing the tail wheel, the auxiliary brake spring on the edge of the winch drum should be released first, so that the wire rope can be easily pulled and the tail wheel can be suspended. After the tail wheel is hung, the spring can be reset or adjusted to a proper pressure.
After the tail wheel is installed and passed the relevant safety inspection, the motor can be started to start the rock loading operation. When the work roller is tightened, the work roller will pull the rake head to pick up the rock and unload it into the mine along the trough to the discharge port. Car, then loosen the work roller control lever, tighten the idle roller control lever, return the empty rake bucket to the head, repeat the rock-scraping action, and even 2-3 times to fill a mine cart.
Type (A) bucket-type rock loader operates the rotary valve of the pneumatic system, and pushes the heavy mining cart with a cart air cylinder. If it is used with a bucket at the back of the inclined lane, a section of indirect groove can be added between the middle tank and the unloading tank to change the position of the discharge port to make the bucket full.
The wire rope (especially empty rope) of the rake bucket is easy to swing during the rock loading process. The driver must have a reliable protective device on the operating side. The driver should send a signal to drive others to pay attention before driving. It is strictly forbidden to stand or carry out other work within the travel range of the bucket when loading rocks.
Avoid tightening the two handles at the same time to prevent the bucket from flying up.
If the harrow bucket is blocked or overloaded during the rock digging process, it should not be pulled forcibly.
When working on the winch, at least three turns of wire rope should be left on the drum.
Do not stack piles too high in front of the feed tank, and do not pile too much piles in the tank to prevent accidents caused by overload of the winch and the gangue and rake bucket jumping out of the tank.
When using a pneumatic cart cylinder to push a heavy truck, you must pay attention to safety and send a signal first so that others can pay attention.
After the rock is loaded, the harrow bucket should be pulled to the feed trough, and then the tail wheel unloaded from the head will be placed in the harrow bucket to prevent it from being buried by vermiculite after firing.
After the rock loading is completed, the two control handles should be located at the release position, and the handles should be removed and placed on the trolley, and then the rotary valve of the pneumatic system should be turned under the slot to prevent smashing when firing.
Before firing, remove the anti-glare light installed on the side of the middle tank and place it under the tank to prevent shock damage.
After firing, the tanks, cables, and anti-skid devices should be checked before driving.
If the shunting disc is used, after the installation is complete, pay attention to whether the piston rods of the air cylinder of the empty cart and the air cylinder of the heavy cart have all been retracted into the cylinder barrel to avoid damage to the piston rod. And the vermiculite on the shunting disc should be cleaned in time.
Before going down the well, check whether all parts and accessories are complete.
Before the test run, check whether the motor connection is consistent with the power supply voltage and whether the direction of motor rotation is correct, otherwise it cannot be run.
Different use locations and different supporting content: the pneumatic system needs to be used when driving the alley, and the pneumatic system can be removed when driving the inclined alley.
The connection between the bucket and the wire rope should be distinguished between the main rope and the tail rope, the work drum and the idle drum, and the work drum connected to the main rope is under heavy load (near the reducer side).
It needs to be transported in sections when going down the well, and then assembled at the work site. When transporting, pay attention to the order of components to avoid inconvenience to the installation. The order is: harrow bucket, feeding trough, trolley, winch, middle Tank (middle and indirect tank), unloading tank, shunting disk.
|component||Bucket||Feed trough||Median value, trolley, etc.||Unloading slot|
|Model Name|| Dimensions (mm) |
Length x width x height
| weight |
| Dimensions |
| weight |
| Dimensions |
| weight |
| Dimensions |
| weight |
|P15B||1125 × 680 × 460||272||1440 × 1200 × 380||180||1750 × 872 × 380||206||1480 × 872 × 380||168|
|P30B||1235 × 900 × 610||459||1395 × 1450 × 700||480||2300 × 1150 × 1650||1900||1630 × 1170 × 550||309|
|P30B (A)||1245 × 900 × 610||468||2200 × 1500 × 700||596||2430 × 1150 × 700||2300||1530 × 1140 × 570||380|
|P60B||1535 × 1100 × 670||730||2265 × 1900 × 503||820||2700 × 1366 × 1866||2770||1900 × 1366 × 500||498|
|P60B (A)||1520 × 1100 × 670||730||2385 × 1870 × 660||853||2600 × 1366 × 2050||3410||1935 × 1366 × 615||708|
|P90B (A)||1640 × 1260 × 730||882||2515 × 2030 × 720||942||2600 × 1526 × 2531||5180||2290 × 1526 × 675||807|
|Note: The overall size of the shunting disk is 4800 × 2245 × 910mm|
After wiring, the electrician should pay attention to the direction of rotation of the drum. When viewed from the reducer side, the drum should rotate counterclockwise. When the two drums rotate in opposite directions at the same time, the one at work should prevail.
Always pay attention to whether the tightness of the brake band and auxiliary brake band is appropriate, whether the winch is flexible, and whether the work is reliable. If you find that the internal gear cannot be held or disengaged, you should adjust the adjustment bolt of the brake band to make it suitable.
Always check the rope for wear and tear and replace it when it breaks.
Grease each sheave bearing once a month, and add 90 ~ 150 industrial gear oil to the winch reducer once every three months, and add 90 ~ 150 industrial gear oil to the planetary gear transmission every month.
When refueling the planetary transmission, care should be taken not to allow the oil to fall on the brake surface of the drum and the brake belt. If oil spots are found in the above parts, wipe them clean.
When using in level lanes, check the oil level of the oil mist device of the pneumatic system every day. If the oil level is found to be insufficient, add lubricating oil in time.
Always pay attention to whether the wire rope joint is firm and reliable to prevent pulling.
Check the connection bolts for looseness and loss once a week, tighten the loose parts, and make up the missing parts.
Clean the machine once a week to clean up leaks, slag and mud.
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