CN211418519U - Movable bridge type reversed loader - Google Patents

Abstract

The utility model provides a mobile bridge type reversed loader, which comprises a head part, a body part, a tail part, a dragging mechanism, a scraper chain and a coal baffle plate which are connected in sequence, wherein the head part consists of a head transmission part, a head frame assembly, a chain wheel assembly and a support trolley; the fuselage part consists of a groove and a chute; the tail part consists of a tail frame, a tail shaft and a chain pressing plate, the dragging mechanism consists of a dragging rack, a cross beam, an oil cylinder, a bottom plate and a walking wheel, the head transmission part of the head part comprises a head transmission device and a head frame, the transmission part transmits power to the chain wheel component of the head part through an output gear component, a motor coupling disc and a speed reducer by a single-speed motor, and transmits the power to the closed scraper chain by the chain wheel component. The arrangement is vertical to the working surface, and raw coal flows outwards along the channel direction; the coal unloading point is more suitable for production, and is reasonably connected with the tail of the gate-trough conveyor, so that the length of the belt conveyor is effectively shortened, and the production efficiency is improved.

Description

Movable bridge type reversed loader

Technical Field

The utility model relates to a coal mining technical field, concretely relates to novel self-control mobile bridge type elevating conveyor.

Background

We have now stepped into the twenty-first century, but we can see that coal still holds a significant weight in traditional energy resources in the world's global energy landscape today, accounting for 27.3% of the total weight. In the present and later period, the main energy source in China and the world still is coal. Coal as the main strategic energy of China always has a great proportion in the primary energy production and consumption composition, along with the development of society, the dependence of economy on energy is stronger and stronger, and the coal resources of China are abundant. The coal mine has the advantages that the storage is large, the distribution is wide, the variety is complete, but the material maker gives rich daily resources to people and also gives complicated ground resource structures, the number of ultra-thick coal seams is small, the coal seam inclination angle is large, the geological structure is unstable, the burial depth is deep, the natural disasters are serious, and the like, so that various coal mines with different yields are determined, and in the mining of mines, the transportation space is greatly limited due to the limitation of mine conditions, such as small end face of an underground roadway and large fluctuation of a bottom plate. The situation stimulates all industries related to coal in China to continuously enlarge the production scale of the industries. They are constantly being developed towards mechanization and automation. Therefore, the mining machinery which is always served for the coal production in China has a huge historical chance nowadays but has to face unprecedented challenges at the same time, is a key industry representing continuous modernization of the domestic coal industry and continuous progress of the technology, and in the mining machinery, the comprehensive mining technology is the most common and advanced mining technology so far.

Due to the shift of the underground mining working face, the length of a transportation line is also changed frequently, the yield is low, most of transportation is carried out by adopting rail transportation, and the auxiliary operation of the transportation work has the advantages of high labor intensity, more occupied labor force and high danger. Therefore, mechanization and automation are adopted in transportation and auxiliary work thereof, and the method has important significance for relieving heavy physical labor, improving labor productivity, ensuring safe production, reducing product cost and increasing economic benefit.

The transfer conveyor is used in the coal mining process, and the stretching times and the dismounting times of the belt conveyor can be shortened, so that the advancing speed of the coal mining working face is higher, and the high-production and high-efficiency operation of the fully-mechanized coal mining working face is realized. The reversed loader can be regarded as a heavy scraper conveyor capable of longitudinally moving integrally. The length of the belt conveyor is generally small, and the belt conveyor is convenient to move integrally along with the advancing of a coal face and the stretching of the belt conveyor. With the continuous development of the comprehensive mechanized coal mining process and the continuous accumulation and enrichment of the use experience of the fully mechanized coal mining equipment, the functions of the reversed loader and the scraper conveyor of the working face generate a plurality of different places, wherein the structural form, the operation parameters and the selection of elements are different. Especially, when the tunneling operation is carried out in a tunneling roadway, the transfer link is emphasized, and various forms of transfer machines are developed. The prior coal face mainly takes a scraper type reversed loader as a main part, has higher transportation efficiency, and can be realized by installing a self-moving device

The development of scraper elevating conveyor in the production and construction of coal mine is approximately three stages. The first stage is in 30-40 years, and the detachable scraper elevating conveyor can be only laid in a straight line in a working face and needs to be manually disassembled, moved and assembled along with the advance of the working face. The scraper chain is a plate type and is mostly a single chain, such as a V type, an SGD-11 type, an SGD-20 type and other low-power light scraper reversed loaders. The second stage is that a bendable scraper elevating conveyor is manufactured by Germany in the early stage of the 40 s, and the bendable scraper elevating conveyor is matched with a coal mining machine and a metal bracket to realize mechanized coal mining. The scraper elevating conveyor can adapt to the conditions of uneven and uneven bottom plate, horizontal bending and the like, does not need to be disassembled when being moved and is increased in coal conveying amount, and the representative product of the stage is the scraper elevating conveyor of model SGW-44 at that time. In the 60 s, due to the appearance of hydraulic supports, in order to meet the requirements of fully mechanized mining, the scraper elevating conveyor is developed to the third stage, and high-power armored heavy scraper elevating conveyor with cough and bending, such as SGD-630/75 type, SGD-630/180 type and the like, is developed.

At present, with the continuous increase of the production capacity of a coal face, the main development trend of a scraper elevating conveyor is as follows:

1. large transportation volume. Foreign advanced coal mining countries have developed scraper blade elevating conveyors with a small transport capacity up to 1500t (80 s) 3500t (90 s).

2. Long transport distance. In order to reduce the loss amount of coal pillars in the mining area stage and increase the length of a working face, the length of the scraper blade elevating conveyor reaches more than 335 m.

3. A high power motor. Motor power has been developed to a single speed motor up to 525kW, a two speed motor 500/250 kW.

4. The service life is long. Because of using the large-diameter circular chain, the strength of the scraper chain is increased, the service life of the scraper elevating conveyor is prolonged, and the coal passing amount of the whole conveyor is up to more than 600 ten thousand tons.

Under the conditions, small and flexible production equipment, in particular to a small scraper type reversed loader, needs to be designed, and high production benefit is brought to coal mine production.

SUMMERY OF THE UTILITY MODEL

In order to overcome the above-mentioned problem that prior art exists, the utility model provides a remove bridge type elevating conveyor forms the conveyer that can realize whole longitudinal movement, can improve the heavy load scraper blade that the goods carried the uninstallation in the short distance, and the afterbody just is located the crossheading of scraper blade aircraft nose below, is the coal for better catching conveyer output. After this, a section of flat groove is laid, then the body of the transfer conveyor is lifted by a concave chute and supported by a guide frame of a walking device, then a convex chute is used for flatly extending the body until the head part, so that a bridge type appearance is formed, the head is placed on a special trolley for the head, and pulleys of the trolley are embedded on sliding rails of a belt conveyor, so that the pushing of the working surface is carried out synchronously. When the maximum connecting stroke of the reversed loader and the belt conveyor is reached, the belt conveyor is stretched and contracted, and the two machines can not work in a matched mode until the two machines are overlapped to reach the other limit.

An object of the utility model is to provide a remove bridge type elevating conveyor, include:

the coal scraper comprises a nose part, a body part, a tail part, a dragging mechanism, a scraper chain and a coal baffle plate which are connected in sequence, wherein the nose part consists of a nose transmission part, a nose frame assembly, a chain wheel assembly and a support trolley; the fuselage part consists of a groove and a chute, and the groove is connected with the chute; the afterbody comprises tailstock, tail shaft and pressure link joint, the tailstock passes through the tail shaft and presses link joint be assembled between/be connected between, drag mechanism comprises dragging frame, crossbeam, hydro-cylinder, bottom plate and walking wheel, it sets up in the frame to drag crossbeam and bottom plate, the walking wheel sets up the bottom plate below, the hydro-cylinder with the headstock is connected, the headstock the handpiece transmission part includes aircraft nose transmission and headstock frame, the aircraft nose transmission part passes through output gear subassembly, motor shaft coupling dish and reduction gear by single-speed motor and transmits power for the headstock the sprocket subassembly, by the sprocket subassembly transmits for the confined scrape the chain.

Preferably, aircraft nose drive division below installation walking portion, walking portion matches with scalable belt feeder, the elevating conveyor with the overlapping length of scalable belt feeder follows elevating conveyor's removal changes, walking portion links through snap ring and back cell body, and the gyro wheel of controlling the frame rides on the belt feeder guide rail, the bridging weight of elevating conveyor acts on about through the articulated slab on the frame, and passes through pivot on the articulated slab makes the aircraft nose forward and backward swing certain angle of elevating conveyor.

Preferably, the nose part further comprises a power part coupling cover and a speed reducer, and a hydraulic motor chain tightening system is mounted on the power part coupling cover and the speed reducer to realize braking.

Preferably, the headstock assembly of the nose part comprises a front frame, a rear groove body, a connecting cushion frame, a tongue plate and a chain shifter, wherein the front frame and the rear groove body are supported and installed through the connecting cushion frame, a nose transmission part, a chain wheel assembly, the tongue plate and the chain shifter, the front frame adopts a frame structure and is formed by welding a left side plate assembly, a right side plate assembly, a middle plate assembly and a bottom plate part, the front frame structure is bilaterally symmetrical and can pass through the connecting cushion frame to install a power part to adapt to the requirements of different working surfaces, the front frame and the rear groove body are connected through oil cylinders, the middle plate assemblies are overlapped and overlapped with one another, and the oil cylinders are pressed through a pump station to enable the front frame to extend forwards, and a chain is tightened to be positioned in place.

Preferably, the chute of the fuselage portion comprises a bridge erecting groove, a convex groove, a concave groove, a hinge joint groove, a middle groove, a skylight middle groove, a discharge groove, a skylight discharge groove and a connecting groove.

Preferably, the dragging mechanism further comprises a telescopic oil cylinder, and the telescopic oil cylinder is connected with the headstock of the headstock through a chain.

Preferably, the traveling wheel of the dragging mechanism is internally provided with a 22312 bearing, and further comprises a traveling wheel carrier and a traveling wheel pin, wherein the front end of the pin of the traveling wheel pin is an M58 × 2.0 bolt and is matched with a self-made nut for use, and the pin of the traveling wheel pin is matched with the traveling wheel for use.

Preferably, the coal blocking plate is 2, the left and the right are respectively provided with 1, a steel plate with the thickness of 20mm is attached and supplemented at the corner of the coal blocking plate, so that the effect of supporting and reinforcing is achieved, and a bottom cover plate is installed at the lower part of the coal blocking plate.

Preferably, the bottom cover plate is a 6mm steel plate.

Preferably, the number of the oil cylinders of the dragging mechanism is four, two oil cylinders are arranged on each side of the dragging mechanism and are symmetrically distributed, the stretching amount of the four oil cylinders is synchronously performed, the feeding amount is the same, the hydraulic pipeline is arranged on a box body beside the machine head, and when the advancing oil cylinder reaches the limit position, the oil cylinders retract to the minimum position to perform chain reduction operation.

The utility model discloses elevating conveyor's beneficial effect:

(1) arranging a reversed loader to be vertical to a working surface, and making raw coal flow outwards in a crossheading direction;

(2) the unloading point of the coal is more suitable for production, and the reasonable connection with the tail of the gate way conveyor is realized;

(3) in the production process, the working plane is pushed forward, and the reversed loader moves forward along with the working plane, so that the length of the belt conveyor can be effectively shortened, the production efficiency is improved, and greater economic benefit is created.

The above and other objects, advantages and features of the present invention will become more apparent to those skilled in the art from the following detailed description of specific embodiments thereof, taken in conjunction with the accompanying drawings.

Drawings

Some specific embodiments of the present invention will be described in detail hereinafter, by way of illustration and not by way of limitation, with reference to the accompanying drawings. The same reference numbers in the drawings identify the same or similar elements or components. Those skilled in the art will appreciate that the drawings are not necessarily drawn to scale. The objects and features of the present invention will become more apparent in view of the following description taken in conjunction with the accompanying drawings, in which:

fig. 1 is an overall structure diagram of a mobile bridge type reversed loader according to an embodiment of the present invention.

Fig. 2 is a schematic structural diagram of a coal baffle according to an embodiment of the present invention.

Fig. 3 is according to the utility model discloses walking wheel structure sketch map.

Fig. 4 is a schematic structural view of a walking wheel frame according to an embodiment of the present invention.

Fig. 5 is according to the utility model discloses an it is according to the utility model discloses walking wheel round pin structure sketch map.

Fig. 6 is a schematic structural view of a first locomotive coal deflector according to an embodiment of the present invention.

Fig. 7 is a schematic diagram of a second machine head coal baffle structure according to an embodiment of the present invention.

Fig. 8 is a schematic view of a lower cover plate structure according to an embodiment of the present invention.

Fig. 9 is a schematic structural view of a frame portion of a towing mechanism according to an embodiment of the present invention.

Fig. 10 is a walking wheel part schematic structural diagram of dragging structure according to the embodiment of the utility model.

Fig. 11 is a schematic structural diagram of a first support according to an embodiment of the present invention.

Fig. 12 is a schematic structural view of a second support according to an embodiment of the present invention.

Detailed Description

The following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings, but the present invention is not limited thereto.

A mobile bridge elevating conveyor, see the embodiment of fig. 1-12, comprising:

the coal mine underground coal; the fuselage part 2 consists of a standard groove and a chute, and the standard groove is connected with the chute; afterbody 3 comprises tail frame, tail shaft and pressure link joint, and the tail frame passes through the tail shaft and presses link joint be assembled between/be connected between, and drag mechanism 4 comprises frame, crossbeam, hydro-cylinder, bottom plate and walking wheel, drags to set up in the frame crossbeam and bottom plate, walking wheel set up in the bottom plate below, and the hydro-cylinder is connected with nose portion 1, and the aircraft nose transmission part of nose portion includes aircraft nose transmission and headstock, and the transmission part passes through output gear subassembly, motor shaft coupling dish and reduction gear by single speed motor and transmits power for the sprocket assembly of nose portion, transmits for the confined scraper chain by sprocket assembly, makes the scraper chain moves according to required direction, accomplishes the task of carrying coal. The whole reversed loader is supported on the first support and the second support.

The equipment works by using a single motor, a dragging mechanism uses a JH-13 type column returning vehicle, a steel wire rope used for dragging is 4-branch rope, a 40-slider machine head is used, and a 150-slider chute, a machine tail and a transition groove are used.

Aircraft nose drive division below installation walking portion, walking portion and scalable belt feeder are supporting mutually, and the overlapping length of elevating conveyor and scalable belt feeder follows elevating conveyor's removal changes, and every 11 meters that advance when the working face, elevating conveyor remove when the same distance, the belt that needs the belt feeder shortens once, and walking portion links through snap ring and back cell body, and the gyro wheel of controlling the frame is ridden on the belt feeder guide rail, makes elevating conveyor can only follow the belt feeder guide rail removes, elevating conveyor's bridge weight passes through the articulated slab and acts on about on the frame, and passes through pivot on the articulated slab makes elevating conveyor's locomotive portion forward and backward swing certain angle.

The nose part 1 also comprises a power part connecting cover and a speed reducer, and a hydraulic motor chain tightening system is arranged on the power part connecting cover and the speed reducer to realize braking.

The headstock assembly of the nose part 1 comprises a front frame, a rear groove body, a connecting cushion frame, a tongue plate and a chain shifter, wherein the front support and the rear groove body are supported and installed with a machine head transmission part and a chain wheel assembly through the connecting cushion frame, the tongue plate and the chain shifter, the front frame adopts a frame structure and comprises a left side plate assembly, a right side plate assembly, a middle plate assembly and a bottom plate part which are welded, the front frame structure is bilaterally symmetrical, the left side plate assembly and the right side plate assembly can be installed with a power part through the connecting cushion frame to adapt to the requirements of different working surfaces, the front frame and the rear groove body are connected through oil cylinders, the middle plate assemblies are overlapped and lapped with each other, and the oil cylinders are pressed through a pump station.

When a chain is tightened, a chain stopper is placed in three holes of a machine head cable-changing groove I, loose blocks at two ends of the chain stopper are turned to the lower side of a ledge to clamp the ledge, the chain stopper is prevented from overturning and causing an accident, a hydraulic chain-pressing control system is started, when the degree of tightness of a scraper chain is measured visually, a motor output shaft is braked by the hydraulic chain-pressing control system, the scraper is in a static tensioning state, when a breaking point of the scraper chain is closed, a braked shaft is loosened to restore the scraper chain to a free tensioning state, so that the chain-tightening work is completed, the hydraulic chain-pressing control system and the chain stopper are taken down and stored properly for later use; the cover hole of the connecting cover is covered to prevent sundries from falling into the cover.

The chute type of the fuselage portion 2 comprises one of a bridge erecting groove, a convex groove, a concave groove, a hinge joint groove, a middle groove, a skylight opening middle groove, a discharge groove, a skylight opening discharge groove and a connecting groove.

Along with the lapse of working face scraper conveyor, the elevating conveyor also needs following propulsion, and this task of accomplishing to lapse is accomplished by dragging the mechanism, and dragging mechanism still includes flexible hydro-cylinder, and flexible hydro-cylinder adopts the chain with the headstock of aircraft nose portion to link to each other, when dragging the elevating conveyor, drops the lift cylinder of flexible hydro-cylinder earlier, then makes the cylinder that advances of flexible hydro-cylinder stretch out, and the cylinder that advances stretches out will drag the mechanism and move a hydraulic stroke forward, again rises the lift cylinder to prop up the roof, then, make the cylinder that advances retract again, the cylinder that advances drives the elevating conveyor and move a hydraulic stroke forward.

The traveling wheel of the dragging mechanism 4 is internally provided with 22312 bearings, and further comprises a traveling wheel carrier and a traveling wheel pin, wherein the front end of the pin of the traveling wheel pin is an M58X 2.0 bolt and is matched with a self-made nut for use, and the pin of the traveling wheel pin is matched with a traveling wheel for use.

The coal blocking plate is 2, the left and the right are respectively provided with 1, and a steel plate with the thickness of 20mm is attached and supplemented at the corner of the coal blocking plate, so that the effect of supporting and reinforcing is achieved, and a bottom cover plate is installed at the lower part of the coal blocking plate. The bottom cover plate is a 6mm steel plate.

The elevating conveyor has the advantages that the transmission power is relatively large, the overall structure is compact, the size is appropriate, the height is low, and the overall reliability is higher, so that the cost of the planetary gear transmission speed reduction stage is low, the width of the machine body is 820mm, and the maximum height of the machine head from the ground is 1200 mm.

Drag mechanism 4 the hydro-cylinder design is totally four, and every limit is two, and the symmetric distribution is four the flexible volume of hydro-cylinder is gone on in step, and the feed rate is also the same under the hydro-cylinder promotes, when the elevating conveyor moved required position, and the fine setting chain is once accomplished to hydro-cylinder pressure release oil return, and hydraulic pressure pipeline sets up on the other box of aircraft nose, requires to guarantee the operation control valve that operating personnel can be convenient, if the hydro-cylinder that gos forward when reaching extreme position, should retract the hydro-cylinder to minimum position, then subtracts the chain operation again.

The reversed loader of the embodiment:

(1) arranging a reversed loader to be vertical to a working surface, and making raw coal flow outwards in a crossheading direction;

(2) the unloading point of the coal is more suitable for production, and the reasonable connection with the tail of the gate way conveyor is realized;

(3) in the production process, the working plane is pushed forward, and the reversed loader moves forward along with the working plane, so that the length of the belt conveyor can be effectively shortened, the production efficiency is improved, and greater economic benefit is created.

In this embodiment, when the coal mining face is used in the mine 12105, the produced coal flows out in the crossheading direction, so that the coal outside the chute is reduced, the times of extension and disassembly of the retractable belt conveyor during transportation are reduced, the cargo load is lifted, and the belt conveyor is convenient to load, thereby accelerating the moving speed of the coal mining face, improving the production efficiency and increasing the coal yield. The transfer conveyor is used on the fully mechanized coal mining face, so that firstly, the coal conveyed out by the working face scraper conveyor is transferred to the belt conveyor; and secondly, the change of the overlap joint of the reversed loader and the belt conveyor ensures the transportation continuity of the reversed loader, reduces the times of stretching the conveying belt by the belt conveyor, shortens the auxiliary working hours, accelerates the extraction speed and improves the production efficiency. The steel frame welding and other problems are not found in the use process of the self-made reversed loader, so that the use condition of the reversed loader is good, and the popularization value is good.

(I) economic benefits

The coal clearing workers are reduced 3 persons every day: the new creation is 3 multiplied by 365 days multiplied by 150 yuan which is 16.425 ten thousand yuan.

The belt 4 sleeves are replaced less per year: 4 sets of x 1.7 ten thousand yuan ═ 6.8 ten thousand yuan.

Totaling: 16.425+6.8 ═ 23.25 ten thousand yuan

(II) social benefits

Time is saved, working efficiency is improved, and labor intensity of workers is reduced. Without manual cleaning of the coal, without adding or reducing belts.

The coal enterprise mining technology is rapidly improved, equipment is rapidly developed, a large number of advanced foreign structure designs and process technologies are gradually learned and absorbed, the electromechanical integration and automation technology is well applied to the design and production of the reversed loader, the development level of the domestic mining machinery is improved, and considerable economic benefits of domestic enterprises are increased.

The technical solutions provided by the embodiments of the present invention are described in detail above, and the principles and embodiments of the present invention are explained herein by using specific examples, and the descriptions of the above embodiments are only applicable to help understand the principles of the embodiments of the present invention; meanwhile, a person skilled in the art can change the embodiments and the application ranges according to the embodiments of the present invention, and in summary, the content of the present specification should not be construed as a limitation to the present invention.

Claims (10)

1. A mobile bridge elevating conveyor comprising:

the coal mine underground coal mine; the fuselage part (2) consists of a groove and a chute, and the groove is connected with the chute; afterbody (3) are by tailstock, tail shaft and press the link joint to form, the tailstock passes through the tail shaft and presses link joint be assembled between/be connected between, it comprises frame, crossbeam, hydro-cylinder, bottom plate and walking wheel to pull mechanism (4), it sets up to pull in the frame crossbeam and bottom plate, the walking wheel sets up the bottom plate below, the hydro-cylinder with headstock (1) is connected, headstock (1) the aircraft nose transmission part includes aircraft nose transmission and headstock frame, the aircraft nose transmission part passes through output gear subassembly, motor shaft coupling dish and reduction gear by single-speed motor and transmits power for the headstock the sprocket assembly, by the sprocket assembly transmits for the confined scrape the link joint.

2. A mobile bridge elevating conveyor as claimed in claim 1 wherein: the aircraft nose drive division below installation walking portion, walking portion matches with scalable belt feeder, the elevating conveyor with the overlapping length of scalable belt feeder, follow elevating conveyor's removal changes, walking portion links with the back cell body through the snap ring, and the gyro wheel of controlling the frame rides on the belt feeder guide rail, elevating conveyor's bridging weight acts on about the frame through the articulated slab, and passes through pivot on the articulated slab, makes elevating conveyor's locomotive portion swing certain angle from beginning to end.

3. A mobile bridge elevating conveyor as claimed in claim 1 wherein: the nose part (1) further comprises a power part connecting cover and a speed reducer, and a hydraulic motor chain tightening system is mounted on the power part connecting cover and the speed reducer to achieve braking.

4. A mobile bridge elevating conveyor as claimed in claim 1 wherein: the headstock assembly of the nose part (1) comprises a front frame, a rear groove body, a connecting cushion frame, a tongue plate and a chain puller, wherein the front frame and the rear groove body are supported and installed through the connecting cushion frame, a nose transmission part, a chain wheel assembly, the tongue plate and the chain puller are arranged, the front frame is of a frame structure and comprises a left side plate assembly, a right side plate assembly, a middle plate assembly and a bottom plate part in a welded mode, the front frame structure is bilaterally symmetrical and can pass through the connecting cushion frame to install a power part to adapt to the requirements of different working faces, the front frame and the rear groove body are connected through oil cylinders, the middle plate assemblies are overlapped and overlapped, the oil cylinders are pressed through pump stations, the front frame extends forwards, and a tight chain is positioned in place through cylindrical pins.

5. A mobile bridge elevating conveyor as claimed in claim 1 wherein: the chute type of the fuselage portion (2) comprises one of a bridge erecting groove, a convex groove, a hinge joint groove, a middle groove, a skylight opening middle groove, a discharge groove, a skylight opening discharge groove and a connecting groove.

6. A mobile bridge elevating conveyor as claimed in claim 1 wherein: the dragging mechanism further comprises a telescopic oil cylinder, and the telescopic oil cylinder is connected with the headstock of the nose part through a chain.

7. A mobile bridge elevating conveyor as claimed in claim 1 wherein: 22312 bearings are arranged in the travelling wheels of the dragging mechanism (4), and the dragging mechanism further comprises a travelling wheel frame and a travelling wheel pin, wherein the front end of the pin of the travelling wheel pin is an M58X 2.0 bolt and is matched with a self-made nut for use, and the pin of the travelling wheel pin is matched with the travelling wheels for use.

8. A mobile bridge elevating conveyor as claimed in claim 1 wherein: the coal blocking plate is 2, the left and right sides of the coal blocking plate are respectively provided with 1, a steel plate with the thickness of 20mm is attached and supplemented at the corner of the coal blocking plate, so that the effect of supporting and reinforcing is achieved, and a bottom cover plate is installed at the lower part of the coal blocking plate.

9. A mobile bridge elevating conveyor as claimed in claim 8 wherein: the bottom cover plate is a 6mm steel plate.

10. A mobile bridge elevating conveyor as claimed in claim 1 wherein: the four oil cylinders of the dragging mechanism (4) are symmetrically distributed, the stretching amount of the four oil cylinders is synchronously performed, the feeding amount is the same, and the hydraulic pipeline is arranged on a box body beside the machine head.

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