Quick-change loading mechanism with adjustable loading width

Abstract

The application discloses a quick-change type loading width adjustable loading mechanism and relates to the technical field of mining equipment. The main structure comprises a main shovel plate, a vice shovel plate, a rotating shaft, a claw, a loading oil cylinder, a direction-changing chain wheel and a reciprocating valve. The two sides of the main shovel plate are respectively provided with a vice shovel plate which can rotate. The two sides of the front end of the main shovel plate are respectively provided with a claw. One end of the claw is connected with one end of the rotating shaft. The other end of the rotating shaft is connected with the rotating center of a connecting lug seat. One side of the connecting lug seat is connected with the piston rod end of the loading oil cylinder. The other end of the claw is connected with the corresponding vice shovel plate. The quick-change type loading width adjustable loading mechanism is simple and convenient to replace the left vice shovel plate and the right vice shovel plate and is used for adjusting the material receiving width of the loading mechanism. The loading width of the loading mechanism is adjusted by increasing or decreasing the adjusting gaskets of the loading oil cylinder. The loading efficiency is significantly improved with the increase of the loading width, and the mining equipment is beneficial to realize efficient loading in a wider tunnel.

Description

Technical Field

[0001] This invention relates to the field of mining equipment technology, and in particular to a quick-change loading mechanism with adjustable loading width. Background Technology

[0002] The loading mechanism is an important component of mining equipment, used to load mined coal and rock into the scraper conveyor. Loading mechanisms generally employ star wheel loading with a fixed shovel width, offering high loading efficiency. To increase the loading width, some systems add swing-type auxiliary shovels to a standard star wheel loading mechanism, while others use a multi-star wheel relay loading system. Both methods can increase the receiving width, but the overall loading efficiency depends on the loading capacity of the intermediate star wheels, and their effect on improving the loading efficiency of wide-type loading mechanisms is limited.

[0003] Furthermore, based on the structural characteristics of the main and auxiliary shovel plates of the star wheel loading mechanism, the maximum loading width of the above-mentioned loading mechanism is not adjustable after design, and the mining equipment with the above-mentioned loading mechanism has low adaptability to various roadway widths. Summary of the Invention

[0004] To address the above technical problems, this invention provides a quick-change adjustable loading width loading mechanism to solve the problem that the loading width of current loading mechanisms cannot be adjusted or has a small adjustment range.

[0005] To achieve the above objectives, the present invention provides the following solution:

[0006] This invention provides a quick-change adjustable loading width loading mechanism, including a main shovel plate, a secondary shovel plate, a rotary shaft, claws, a loading cylinder, a redirecting sprocket, and a reciprocating valve. A secondary shovel plate is rotatably mounted on each side of the main shovel plate. A claw is mounted on each side of the front end of the main shovel plate, with one end of each claw connected to one end of the rotary shaft. The other end of the rotary shaft is connected to the rotation center of a connecting lug. One side of the connecting lug is connected to the piston rod end of the loading cylinder, and the other end of each claw is connected to the corresponding secondary shovel plate. The redirecting sprocket is positioned above the center of the main shovel plate. The reciprocating valve is connected to the loading cylinder.

[0007] Optionally, the main shovel plate is provided with a rotary shaft mounting hole; a mounting flange is provided in the rotary shaft mounting hole; the rotary shaft is disposed in the mounting flange, and a bearing is provided between the rotary shaft and the mounting flange.

[0008] Optionally, a first inner pressure plate is provided at one end of the mounting flange facing the claw, and the first inner pressure plate is disposed between the inner ring of the bearing and the claw; a first outer pressure plate is provided at one end of the mounting flange facing the claw, and the first outer pressure plate is disposed between the outer ring of the bearing and the claw.

[0009] Optionally, the rotary shaft includes a main shaft, and the main shaft is connected to the claw via a first flat key.

[0010] Optionally, the rotary shaft includes a main shaft, and the main shaft is connected to the connecting lug via a second flat key.

[0011] Optionally, a hydraulic cylinder hinge hole is provided on one side of the connecting lug, and the piston rod of the loading hydraulic cylinder is rotatably connected to the hydraulic cylinder hinge hole.

[0012] Optionally, the main shovel plate is provided with a loading cylinder hinge hole, and the cylinder body of the loading cylinder is rotatably connected to the main shovel plate through the loading cylinder hinge hole.

[0013] Optionally, the rotary shaft includes a main shaft, and a mounting base is provided at the end of the main shaft away from the claw, and a bearing is provided between the mounting base and the main shaft.

[0014] Optionally, a second inner pressure plate is provided between the end of the inner ring of the bearing and the main shaft, and an end cap is provided between the end of the outer ring of the bearing and the main shaft.

[0015] Optionally, the main shovel plate is provided with an adjustment shim mounting port; the end of the loading cylinder body facing the claw is provided with an adjustment shim, and the adjustment shim is used to change the stroke of the piston rod of the loading cylinder.

[0016] The present invention achieves the following technical effects compared to the prior art:

[0017] The quick-change adjustable loading width loading mechanism of this invention allows for simple and convenient replacement of the left and right auxiliary shovels, which are used to adjust the material receiving width of the loading mechanism. The loading width of the loading mechanism can be adjusted by adding or removing the adjusting shims of the loading cylinder. The loading efficiency will be significantly improved as the loading width increases, which is beneficial for mining equipment to achieve efficient loading in wider tunnels. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the quick-change adjustable loading width loading mechanism of the present invention;

[0020] Figure 2 This is a schematic diagram of the main shovel plate of the quick-change adjustable loading width loading mechanism of the present invention;

[0021] Figure 3 This is a schematic diagram of the connection structure of the left claw and drive system of the quick-change adjustable loading width loading mechanism of the present invention;

[0022] Figure 4 This is a schematic diagram of the rotary shaft and connection structure of the quick-change adjustable loading width loading mechanism of the present invention;

[0023] Figure 5 This is a schematic diagram of the loading cylinder and adjusting shim installation structure of the quick-change adjustable loading width loading mechanism of the present invention;

[0024] Figure 6 This is a hydraulic schematic diagram of the quick-change adjustable loading width loading mechanism of the present invention.

[0025] In the diagram: 1. Main shovel plate; 1.1. Rotary shaft mounting hole; 1.2. Adjusting shim mounting port; 1.3. Loading cylinder hinge hole; 2. Left auxiliary shovel plate; 3. Right auxiliary shovel plate; 4. Rotary shaft; 4.1. Main shaft; 4.2. First inner pressure plate; 4.3. Bearing; 4.4. Seal; 4.5. Outer pressure plate; 4.6. Mounting flange; 4.7. Connecting lug; 4.7.1. Cylinder hinge hole; 4.8. Mounting seat; 4.9. End cover; 4.10. Distance ring; 4.11. Second inner pressure plate; 4.12. First flat key; 4.13. Second flat key; 5. Left claw; 5.1. Fixing plate; 6. Right claw; 7. Loading cylinder; 7.1. Shim fixing seat; 7.2. Shim mounting hole; 8. Adjusting shim; 8.1. Shim fixing hole; 9. Redirecting sprocket; 10. Reciprocating valve. Detailed Implementation

[0026] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0027] like Figures 1 to 6As shown, this embodiment provides a quick-change adjustable loading width loading mechanism, including a main shovel plate 1, a secondary shovel plate, a rotary shaft 4, claws, a loading cylinder 7, a redirecting sprocket 9, and a reciprocating valve 10; a secondary shovel plate is rotatably mounted on both sides of the main shovel plate 1; a claw is mounted on both sides of the front end of the main shovel plate 1, one end of the claw is connected to one end of the rotary shaft 4; the other end of the rotary shaft 4 is connected to the rotation center of a connecting lug 4.7, one side of the connecting lug 4.7 is connected to the piston rod end of the loading cylinder 7, and the other end of the claw is connected to the corresponding secondary shovel plate; the redirecting sprocket 9 is located above the middle of the main shovel plate 1; the reciprocating valve 10 is connected to the loading cylinder 7.

[0028] In this specific embodiment, the main shovel plate 1 is provided with a rotary shaft mounting hole 1.1; a mounting flange 4.6 is provided inside the rotary shaft mounting hole 1.1; the rotary shaft 4 is provided inside the mounting flange 4.6, and a bearing 4.3 is provided between the rotary shaft 4 and the mounting flange 4.6.

[0029] A hydraulic cylinder hinge hole 4.7.1 is provided on one side of the connecting lug 4.7, and the piston rod of the loading cylinder 7 is rotatably connected to the hydraulic cylinder hinge hole 4.7.1. A loading cylinder hinge hole 1.3 is provided on the main shovel plate 1, and the cylinder body of the loading cylinder 7 is rotatably connected to the main shovel plate 1 through the loading cylinder hinge hole 1.3.

[0030] More specifically, the rotary shaft 4 includes a main shaft 4.1, which is connected to the claw via a first flat key 4.12, and to the connecting lug 4.7 via a second flat key 4.13. A mounting base 4.8 is located at the end of the main shaft 4.1 away from the claw, and a bearing 4.3 is located between the mounting base 4.8 and the main shaft 4.1. A first inner pressure plate 4.2 is located at the end of the mounting flange 4.6 facing the claw, between the inner ring of the bearing 4.3 and the claw; a first outer pressure plate 4.5 is located at the end of the mounting flange 4.6 facing the claw, between the outer ring of the bearing 4.3 and the claw. A second inner pressure plate 4.11 is located between the end of the inner ring of the bearing 4.3 and the main shaft 4.1, and an end cover 4.9 is located between the end of the outer ring of the bearing 4.3 and the main shaft 4.1.

[0031] The main shovel plate 1 is provided with an adjusting shim mounting port 1.2; an adjusting shim 8 is provided at the end of the cylinder body of the loading cylinder 7 facing the claw, and the adjusting shim 8 is used to change the stroke of the piston rod of the loading cylinder 7. More specifically, the adjusting shim 8 is a square metal sheet with a certain thickness, and four through holes are provided around the adjusting shim 8. A shim fixing seat 7.1 is provided at the end of the cylinder body of the loading cylinder 7, and a shim mounting hole 7.2 is provided on the shim fixing seat 7.1. A bolt is provided between the shim fixing seat 7.1 and the shim mounting hole 7.2. The adjusting shim 8 is connected to the cylinder body of the loading cylinder 7 by bolts.

[0032] During operation, hydraulic oil enters the rodless chamber of the loading cylinder 7 through the reciprocating valve 10. The piston rod of the loading cylinder 7 extends out and drives the left claw 5 and right claw 6 to swing by pushing the rotating shaft 4 and connecting lug 4.7. The swing direction of the left claw 5 and right claw 6 is from the outside of the shovel to the middle of the shovel. When the loading cylinder 7 extends to its limit position, the reciprocating valve 10 is activated, and the oil inlet and outlet of the loading cylinder 7 are reversed. Hydraulic oil enters the rod chamber of the loading cylinder 7, and the loading cylinder 7 retracts, pulling the rotating shaft 4 and connecting lug 4.7 to drive the left claw 5 and right claw 6 to swing. The swing direction of the left claw 5 and right claw 6 is from the middle of the shovel to both sides of the shovel.

[0033] Then the reciprocating valve 10 actuates, and the loading cylinder 7 reverses its oil flow direction, repeating the cycle. Simultaneously, the scraper conveyor's scraper chain bypasses the redirecting sprocket 9, carrying away the loaded material.

[0034] When adjusting the loading width, replace the left auxiliary shovel plate 2 and right auxiliary shovel plate 3 with specific widths to increase the material receiving width of the loading mechanism; adjust the thickness of the adjusting shim 8 to adjust the length of the loading cylinder 7 after it retracts, which in turn affects the maximum outward swing angle of the left claw 5 and right claw 6, and ultimately achieves the adjustment of the loading width and loading efficiency of the loading mechanism.

[0035] It should be noted that, for those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention, and no reference numerals in the claims should be construed as limiting the scope of the claims.

[0036] This specification uses specific examples to illustrate the principles and implementation methods of the present invention. The descriptions of the above embodiments are only for the purpose of helping to understand the method and core ideas of the present invention. Furthermore, those skilled in the art will recognize that, based on the ideas of the present invention, there will be changes in the specific implementation methods and application scope. Therefore, the content of this specification should not be construed as a limitation of the present invention.

Claims

1. A quick-change adjustable loading width loading mechanism, characterized in that, It includes a main shovel plate, a secondary shovel plate, a rotary shaft, a claw, a loading cylinder, a redirecting sprocket, and a reciprocating valve; a secondary shovel plate is rotatably provided on each side of the main shovel plate; The main shovel plate has a claw on each of its two front ends. One end of the claw is connected to one end of the rotary shaft. The other end of the rotary shaft is connected to the rotation center of a connecting lug. One side of the connecting lug is connected to the piston rod end of the loading cylinder. The other end of the claw is connected to the corresponding auxiliary shovel plate. The redirecting sprocket is located above the middle of the main shovel plate. The reciprocating valve is connected to the loading cylinder. The main shovel plate is provided with a rotary shaft mounting hole; a mounting flange is provided in the rotary shaft mounting hole; the rotary shaft is provided in the mounting flange, and a bearing is provided between the rotary shaft and the mounting flange; A first inner pressure plate is provided at one end of the mounting flange facing the claw, and the first inner pressure plate is disposed between the inner ring of the bearing and the claw; a first outer pressure plate is provided at one end of the mounting flange facing the claw, and the first outer pressure plate is disposed between the outer ring of the bearing and the claw. The main shovel plate is provided with an adjustment shim mounting port; the end of the loading cylinder facing the claw is provided with an adjustment shim, which is used to change the stroke of the piston rod of the loading cylinder.

2. The quick-change adjustable loading width loading mechanism according to claim 1, characterized in that, The rotary shaft includes a main shaft, and the main shaft and the claw are connected by a first flat key.

3. The quick-change adjustable loading width loading mechanism according to claim 1, characterized in that, The rotary shaft includes a main shaft, and the main shaft is connected to the connecting lug via a second flat key.

4. The quick-change adjustable loading width loading mechanism according to claim 1, characterized in that, A hydraulic cylinder hinge hole is provided on one side of the connecting lug, and the piston rod of the loading hydraulic cylinder is rotatably connected to the hydraulic cylinder hinge hole.

5. The quick-change adjustable loading width loading mechanism according to claim 1, characterized in that, The main shovel plate is provided with a loading cylinder hinge hole, and the cylinder body of the loading cylinder is rotatably connected to the main shovel plate through the loading cylinder hinge hole.

6. The quick-change adjustable loading width loading mechanism according to claim 1, characterized in that, The rotary shaft includes a main shaft, and a mounting base is provided at the end of the main shaft away from the claw. A bearing is provided between the mounting base and the main shaft.

7. The quick-change adjustable loading width loading mechanism according to claim 6, characterized in that, A second inner pressure plate is provided between the end of the inner ring of the bearing and the main shaft, and an end cap is provided between the end of the outer ring of the bearing and the main shaft.

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