CN212049150U

CN212049150U - Self-moving tail of large-stroke belt conveyor

Info

Publication number: CN212049150U
Application number: CN202020445894.6U
Authority: CN
Inventors: 李平辉; 苏习灿; 吴雅明; 代佳; 万佳乐; 武凤霄
Original assignee: Zhengzhou Coal Mining Machinery Longwall Equipment Co ltd
Current assignee: Zhengzhou Coal Mining Machinery Longwall Equipment Co ltd
Priority date: 2020-03-31
Filing date: 2020-03-31
Publication date: 2020-12-01
Anticipated expiration: 2030-03-31

Abstract

The utility model provides a self-moving tail of a large-stroke belt conveyor with more stable and labor-saving working process, which comprises a frame, a traveling device arranged on the frame and connected with a head of a reversed loader, and a pushing cylinder, wherein the frame comprises a headstock, a middle frame and a tailstock, the middle frames are sequentially connected to form a middle frame group, one end of the middle frame group is connected with the head frame, the other end of the middle frame group is connected with the tailstock, one end of the pushing cylinder close to the headstock is fixedly connected with the traveling device, and the other end of the pushing cylinder is connected with the middle frame in a clamping; the frame is provided with a support device which can be stretched and contracted to be pressed or separated from the roadway. The utility model discloses set up strutting arrangement in the frame and increased from the frame and the tunnel between the frictional force of moving the tail. Like this, the elevating conveyor and running gear are in the process of advancing, and the tail position of moving certainly and state are more stable, and the completion that can effectively stabilize is passed, reduces the offset and rocks risks such as toppling.

Description

Self-moving tail of large-stroke belt conveyor

Technical Field

The utility model belongs to belt feeder transportation field, concretely relates to big stroke belt feeder is from moving tail.

Background

The belt conveyor self-moving tail device is main equipment of a coal mine working line and is arranged between a reversed loader machine head and a belt conveyor, and the reversed loader machine head is overlapped on a walking device of a self-moving tail. The coal is unloaded from the head of the reversed loader to the tail of the self-moving machine, and then is transferred to the belt conveyor to be conveyed to the ground. The belt conveyor self-moving tail device is applied to fast pushing and correct lapping of a high-yield and high-efficiency working face crossheading reversed loader and a belt conveyor, meets the requirements of high progress and fast pushing of the working face, has the functions of adjusting belt deviation, straightening the pushing direction of the reversed loader, automatically advancing and the like, and ensures smooth transportation and transfer along a slot and good connection of equipment. The belt self-moving tail plays a crucial role in the whole underground transportation system, and the moving frequency of the belt self-moving tail directly influences the propelling speed of a working face.

In the traditional coal mining process, when the coal mining machine cuts one cut of coal, the reversed loader forwards pushes a cut distance under the action of the self-moving device or the end bracket, and meanwhile, the head of the reversed loader also drives the running device of the self-moving tail of the belt conveyor to forwards push the belt conveyor to the same displacement along the guide rail of the self-moving tail until the tail end of the guide rail. After the traveling device moves to the guide rail terminal, the machine body of the self-moving tail of the belt conveyor must be pushed forward. The existing self-moving tail takes the head of a reversed loader as a fulcrum and pushes the self to move forward to a position by one step through a pushing oil cylinder. The pushing cylinder has the limitation of maximum stroke, and after a common coal mining machine finishes cutting 3 cutters, the coal mining machine must be pushed into the self-moving tail, namely three-cutter one-push or four-cutter one-push. The traditional process method has the disadvantages of low efficiency, high labor intensity of operators and high requirement on technical level.

Patent CN110371575A discloses a large-stroke self-moving tail for a belt conveyor, which comprises a middle frame, a head end frame, a tail end frame and a plurality of middle frames, wherein the middle frames form a middle frame group; the middle frame group is connected with the head end frame and the tail end frame. The middle frame near the head end frame is provided with a walking trolley, the walking trolley is fixed with the head of the reversed loader, one end of the pushing oil cylinder is fixed with the walking trolley, and the other end of the pushing oil cylinder is clamped with the middle frame. The pushing oil cylinder takes the walking trolley as a supporting point to push the tail to move forwards step by step. The patent can realize more than ten cutters and one push, and realize quick operation, but has several defects. According to the large-stroke self-moving tail of the belt conveyor, when the reversed loader moves forwards by taking the self-moving tail of the belt conveyor as a fulcrum, a plurality of strokes need to be moved to continuously push forwards, and the self weight of the self-moving tail of the belt conveyor is much smaller than that of the reversed loader, so that the self weight of the self-moving tail of the belt conveyor forms friction force only by the self weight of the self-moving tail of the belt conveyor, the self-moving tail of the belt conveyor is not stable and reliable enough, and the position deviation and the shaking of the self-moving tail of the belt conveyor in the pushing. Similarly, when the self-moving tail of the belt conveyor moves forwards by taking the reversed loader as a fulcrum, the belt conveyor also needs to move for multiple strokes to continuously push forwards, and the requirement on the thrust of a pushing oil cylinder is high. Therefore, a self-moving tail of the large-stroke belt conveyor, which is more stable and reliable in working process and more labor-saving in the process of moving, is needed.

SUMMERY OF THE UTILITY MODEL

The utility model provides a more steady laborsaving big stroke belt feeder self-advancing tail of working process.

The purpose of the utility model is realized with the following mode: the large-stroke self-moving tail of the belt conveyor comprises a rack, a traveling device and a pushing cylinder, wherein the traveling device and the pushing cylinder are arranged on the rack and connected with a head of a reversed loader; the frame is provided with a support device which can be stretched and contracted to be pressed or separated from the roadway.

The supporting device is arranged at two ends of the rack, outside the headstock and the tailstock, and comprises a supporting seat connected with the headstock or the tailstock, and the supporting seat is provided with a telescopic supporting cylinder.

The supporting plate is arranged at the top of the supporting cylinder, and a bulge for increasing friction force is arranged on the supporting plate.

The supporting cylinder is hinged on the supporting seat, the supporting seat is further hinged with a telescopic auxiliary cylinder, and one end of the auxiliary cylinder is hinged with the supporting cylinder to enable the angle between the supporting cylinder and the supporting seat to be changeable.

The walking device comprises a walking frame and an anchoring frame, the walking frame and the anchoring frame are respectively connected with one end of the pushing cylinder, a walking wheel is arranged on the walking frame, and the walking wheel walks on a track of the rack; the anchoring frame is provided with a telescopic anchoring cylinder, a piston rod of the anchoring cylinder is provided with an anchoring pin, and the rack is uniformly provided with positioning holes along the motion track of the anchoring pin.

The middle frame is provided with a positioning plate, and the positioning hole is arranged on the positioning plate; the lower surface of the anchoring frame is provided with an anchoring plate which is a U-shaped plate placed laterally, and the anchoring cylinder penetrates through two side plates of the U-shaped plate of the anchoring plate; a positioning plate is arranged on the middle frame of the frame and positioned between the two side plates of the anchoring plate.

The upper end of the walking frame is connected with a telescopic walking frame supporting cylinder, and the lower end of the walking frame supporting cylinder is connected with a supporting beam.

The utility model has the advantages that: the support device arranged on the rack increases the friction force between the rack of the self-moving tail and the roadway. Like this, the elevating conveyor and running gear are in the process of advancing, and the tail position of moving certainly and state are more stable, and the completion that can effectively stabilize is passed, reduces the offset and rocks risks such as toppling. The walking frame supporting cylinder is arranged at the position, located at the head of the reversed loader, on the walking device, and when the self-moving tail rack is pushed, the head of the reversed loader can be lifted, so that the pressure of the self-moving tail on the bottom surface of the roadway is reduced, and the pushing resistance is effectively reduced.

Drawings

Fig. 1 is an overall schematic view of a self-moving tail.

Fig. 2 is a diagram of the running state of the head of the reversed loader on the starting end and the tail end of the guide rail on the self-moving tail.

Fig. 3 is a schematic view of the walking device.

Fig. 4 is a schematic view of the support device.

Fig. 5 is a schematic view of a positioning hole on the frame.

Fig. 6 is a schematic view a-a of fig. 1.

Fig. 7 is a view from B-B of fig. 1.

Fig. 8 is a cross-sectional view taken along line C-C of fig. 1.

Wherein, 1 is a supporting device, 2 is a lifting frame, 3 is a head frame, 4 is an intermediate frame, 5 is a walking device, 6 is a tail frame, 7 is a loader head, 11 is a supporting plate, 12 is a supporting cylinder, 13 is an auxiliary cylinder, 14 is a supporting seat, 41 is a positioning plate, 42 is a positioning hole, 51 is a walking wheel, 52 is a walking frame, 53 is a walking frame supporting cylinder, 54 is a supporting beam, 55 is a pushing cylinder, 56 is an anchoring frame, 57 is an anchoring cylinder, 58 is an anchoring pin, and 59 is an anchoring plate.

Detailed Description

The technical solution of the present invention will be described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that "connected" and words used in this application to express "connected," such as "connected," "connected," and the like, include both direct connection of one element to another element and connection of one element to another element through another element.

As shown in fig. 1-8, the self-moving tail of the large-stroke belt conveyor comprises a frame, a traveling device 5 arranged on the frame and connected with a head of a reversed loader, and a pushing cylinder 55, wherein the frame comprises a head frame 3, a middle frame 4 and a tail frame 6, the middle frames 4 are sequentially connected to form a middle frame group, one end of the middle frame group is connected with the head frame 3, and the other end of the middle frame group is connected with the tail frame 6; one end of the pushing cylinder 55 close to the headstock 3 is fixedly connected with the walking device 5, and the other end of the pushing cylinder 55 is clamped with the middle frame 4. The frame is provided with a support device 1 which can be stretched and contracted to be pressed or separated from the roadway. The supporting device 1 increases the friction force between the frame of the self-moving tail and the roadway. Therefore, the position and the state of the self-moving tail are stable in the propelling process of the reversed loader and the walking device 5, and the position deviation can be effectively reduced.

The supporting device 1 is arranged at two ends of the frame and outside the headstock 3 and the tailstock 6, the supporting device 1 comprises a supporting seat 14 connected with the headstock 3 or the tailstock 6, and a telescopic supporting cylinder 12 is arranged on the supporting seat 14. The supporting cylinder 12 can be tightly pressed with a roadway top plate after being extended, and the friction force between the self-moving tail rack and the roadway is increased. The top of the supporting cylinder 12 is provided with a supporting plate 11, and the supporting plate 11 is provided with a projection for increasing friction force. The supporting plate 11 is hinged with the top of the supporting cylinder 12 and can automatically adjust the angle when contacting with the top of a roadway.

The supporting cylinder 12 is hinged on the supporting seat 14, the supporting seat 14 is further hinged with an auxiliary cylinder 13 which can be stretched, one end of the auxiliary cylinder 13 is hinged with the supporting cylinder 12, and therefore the angle between the supporting cylinder 12 and the supporting seat 14 can be changed. When the ground or the top of the roadway is uneven, the angle of the supporting cylinder 12 can be adjusted to find a stable supporting position and a stable supporting direction.

The walking device 5 comprises a walking frame 52 and an anchoring frame 56, the walking frame 52 and the anchoring frame 56 are respectively connected with one end of a pushing cylinder 55, a walking wheel 51 is arranged on the walking frame 52, and the walking wheel 51 walks on a track of the frame; an anchoring cylinder 57 capable of extending and contracting is arranged on the anchoring frame 56, an anchoring pin 58 is arranged on a piston rod of the anchoring cylinder 57, and positioning holes 42 are uniformly distributed on the machine frame along the motion track of the anchoring pin 58. The walking device 5 is hinged with a reversed loader head 7 through a pin shaft. The anchor pins 58 of the anchor cylinders 57 extend into the positioning holes 42, which are circular or oblong, to fix the anchor frame 56 to the frame.

The middle frame 4 is provided with a positioning plate 41, and a positioning hole 42 is arranged on the positioning plate 41; an anchoring plate 59 is arranged on the lower surface of the anchoring frame 57, the anchoring plate 59 is a U-shaped plate placed on the side, and the anchoring cylinder 57 drives the anchoring pin 58 to penetrate through two side plates of the U-shaped plate of the anchoring plate 59; the middle frame 4 of the frame is provided with a positioning plate 41, and the positioning plate 41 is positioned between the two side plates of the anchoring plate 59. The positioning plate 41 is a single layer, corresponds to the space between the side plates on both sides of the anchoring plate 59, and forms a space for accommodating the anchoring pin 58. The pushing cylinder 55 is formed at an integral multiple of the pitch a.

The traveling frame 52 is connected to a telescopic traveling frame support cylinder 53, and the lower end of the traveling frame support cylinder 53 is connected to a support beam 54. When the walking frame supporting cylinder 53 extends to be tightly pressed with the ground, the head 7 of the reversed loader can be partially lifted, and the resistance when the machine frame is pushed is effectively reduced. The support cylinder 12 and the auxiliary cylinder 13, the anchor cylinder 57, the pushing cylinder 55, the traveling frame support cylinder 53, and the like are preferably hydraulic cylinders, but may be other telescopic elements or mechanisms. The self-moving tail also comprises a hydraulic system which provides power for various cylinders. Still be provided with in the frame of moving the tail and raise frame 2 for the height of adjustment belt feeder belt, raise frame 2 and be located the frame outside headstock 2, strutting arrangement 1's supporting seat can set up and raise on frame 2. These belong to the prior art and are not described in detail.

In specific implementation, firstly, assuming that the walking device 5 drives the head 7 of the reversed loader to be positioned at the tail part of the self-moving tail, when the coal mining machine finishes one stroke, the walking frame device 5 needs to be operated to drive the head 7 of the reversed loader to move forward one stroke from the tail part of the self-moving tail of the belt conveyor to the head part. The operation process is as follows: the walking frame supporting cylinder 53 retracts to drive the supporting beam 54 to lift off the ground; the supporting cylinder 12 of the supporting device 1 extends out to prop against the top plate of the roadway; the anchoring cylinder 57 is in an extending state, and the anchoring pin 58 is inserted into the positioning hole 42 of the frame for positioning; the pushing cylinder 55 extends out for a stroke to drive the walking frame 52 and the head 7 of the reversed loader, and the belt conveyor walks for a stroke from the tail of the belt conveyor to the head; the anchoring cylinder 57 retracts, and the anchoring pin 58 is pulled out from the frame positioning hole to cancel positioning; the pushing cylinder 55 retracts to pull the anchor frame 56, the anchor cylinder 57 and the anchor pin 58 forward by a stroke. Therefore, when the coal mining machine finishes one stroke, the traveling device 5 drives the reversed loader to move forward by one stroke relative to the self-moving tail of the belt conveyor until the reversed loader travels to the head frame part of the self-moving tail of the belt conveyor, and the next action is carried out to move the self-moving tail of the belt conveyor without the stroke.

Assuming that the running gear 5 drives the reversed loader and has run the whole belt conveyor, the belt conveyor needs to be operated to move forward from the tail of the belt conveyor. The operation process is as follows: the supporting cylinder 12 of the supporting device 1 is retracted, and the top of the supporting cylinder leaves the top plate of the roadway; the walking frame supporting cylinder 53 extends out to drive the supporting beam 54 to prop up the ground, and the anchoring cylinder 57 retracts the anchoring pin 58 and is pulled out of the frame positioning hole 42; pushing cylinder 55 extends out, so that anchor frame 56 drives anchor cylinder 57, anchor pin 58 and anchor plate 59 to move for a stroke in the direction of the tail frame; the anchoring cylinder 57 extends out, and the anchoring pin 58 extends into the positioning hole 42 of the frame for positioning; and the pushing cylinder 55 is used for retracting the cylinder to pull the belt conveyor from the tail of the belt conveyor to the head frame by a stroke. The process is repeated for a plurality of times until the tail of the belt conveyor self-moving machine is pulled to the headstock for a plurality of strokes, so that the head of the reversed loader is positioned at the tail of the belt conveyor self-moving machine again.

It should be noted that as used in the description, the terms "front," "back," "left," "right," "upper," and "lower" refer to directions in the drawings, and the terms "inner" and "outer" refer to directions toward and away from, respectively, the geometric center of a particular component. The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features. Also, it will be apparent to those skilled in the art that various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the spirit of the principles of the invention.

Claims

1. The large-stroke self-moving tail of the belt conveyor comprises a rack, a traveling device and a pushing cylinder, wherein the traveling device and the pushing cylinder are arranged on the rack and connected with a head of a reversed loader; the method is characterized in that: the frame is provided with a support device which can be stretched and contracted to be pressed or separated from the roadway.

2. The self-moving tail of the large-stroke belt conveyor according to claim 1, which is characterized in that: the supporting device is arranged at two ends of the rack, outside the headstock and the tailstock, and comprises a supporting seat connected with the headstock or the tailstock, and a telescopic supporting cylinder is arranged on the supporting seat.

3. The self-moving tail of the large-stroke belt conveyor according to claim 2, characterized in that: the supporting plate is arranged at the top of the supporting cylinder, and a bulge for increasing friction force is arranged on the supporting plate.

4. The self-moving tail of the large-stroke belt conveyor according to claim 2 or 3, which is characterized in that: the supporting cylinder is hinged to the supporting seat, the supporting seat is further hinged to a telescopic auxiliary cylinder, and one end of the auxiliary cylinder is hinged to the supporting cylinder, so that the angle between the supporting cylinder and the supporting seat can be changed.

5. The self-moving tail of the large-stroke belt conveyor according to claim 1, which is characterized in that: the walking device comprises a walking frame and an anchoring frame, the walking frame and the anchoring frame are respectively connected with one end of the pushing cylinder, a walking wheel is arranged on the walking frame, and the walking wheel walks on a track of the rack; the anchoring frame is provided with a telescopic anchoring cylinder, a piston rod of the anchoring cylinder is provided with an anchoring pin, and the rack is uniformly provided with positioning holes along the motion track of the anchoring pin.

6. The self-moving tail of the large-stroke belt conveyor according to claim 5, characterized in that: the middle frame is provided with a positioning plate, and the positioning hole is formed in the positioning plate; the lower surface of the anchoring frame is provided with an anchoring plate which is a U-shaped plate placed laterally, and the anchoring cylinder penetrates through two side plates of the U-shaped plate of the anchoring plate; a positioning plate is arranged on the middle frame of the frame and positioned between the two side plates of the anchoring plate.

7. The self-moving tail of the large-stroke belt conveyor according to claim 6 or 5, which is characterized in that: the upper end of the walking frame is connected with a telescopic walking frame supporting cylinder, and the lower end of the walking frame supporting cylinder is connected with a supporting beam.