Auxiliary positioning and installation device for pre-crushing equipment in mining conveyors

Abstract

This invention provides an auxiliary positioning and installation device for pre-crushing equipment in a mining conveyor, belonging to the field of coal mining machinery manufacturing. It is used to assist the pre-crushing equipment in being hinged in the mounting groove on the side of the tail frame of the mining conveyor by means of a pin connection. The structure of the auxiliary positioning and installation device for pre-crushing equipment includes a positioning auxiliary component and a pin auxiliary component. The positioning auxiliary component is used to align the holes between the mounting groove and the pre-crushing device, and the pin auxiliary component is used to insert the pin into the holes of the mounting groove and the pre-crushing device.

Description

Technical Field

[0001] This invention relates to the field of coal mining machinery manufacturing, and in particular to an auxiliary positioning and installation device for pre-crushing equipment used in mining conveyors. Background Technology

[0002] Pre-crushing equipment is typically installed at the tail end of underground coal conveyors to crush excessively large coal and gangue, preventing premature belt wear due to excessive weight or size. This pre-crushing equipment is a drum-type mechanical component with toothed sidewalls and a shaft connected to the side of the tail section. Figure 11 As shown, the pre-crushing equipment is hinged to the support base on the tail side via a pin. During assembly, the connecting part of the pre-crushing equipment is placed inside the support base by a crane, and then the pin is inserted. The problem with this installation process is that, due to the pre-crushing equipment's weight (in tons) and eccentric structure, the pin holes are usually tilted after being hoisted to the support base. This makes it difficult to align the pin holes of the connecting part of the pre-crushing equipment with the pin holes on both sides of the support base, requiring 2-3 people to push and align the holes. When inserting the pin, due to its large size and weight, it is prone to tilting during normal assembly, leading to assembly difficulties and inability to insert it properly. Using a hammer to assemble it further increases the risk of damage to the outer diameter. The entire assembly process requires 4-5 people working together, which is time-consuming and labor-intensive. Summary of the Invention

[0003] In view of this, the present invention provides an auxiliary positioning and installation device for pre-crushing equipment in mining conveyors, which can improve the assembly efficiency of pre-crushing equipment, reduce the difficulty and labor intensity of operators, and improve product quality and operational safety.

[0004] The technical solution adopted by the embodiments of the present invention to solve its technical problem is as follows:

[0005] An auxiliary positioning and installation device for pre-crushing equipment in a mining conveyor is provided. This device assists in hinged pre-crushing equipment to a mounting groove on the side of the tail frame of the mining conveyor via a pin connection. Pin holes are provided on the side plates of both sides of the mounting groove. The connection part of the pre-crushing equipment is a semi-cylindrical structure, and a pin through-hole coaxial with the semi-cylindrical structure is provided in the connection part. The structure of the auxiliary positioning and installation device includes a positioning auxiliary component and a pin auxiliary component, wherein:

[0006] The positioning auxiliary component consists of a positioning block, a vertical fine-tuning screw, and a horizontal fine-tuning component. A V-shaped groove is formed on the front sidewall of the positioning block, with a semi-circular bottom. The upper surface of the positioning block has a support block with a width greater than the positioning block on both sides, and a protruding pressure plate connecting part on the upper side. The vertical fine-tuning screw passes vertically through the upper part of the positioning block, with its end placed within the V-shaped groove. The horizontal fine-tuning component consists of a first horizontal screw, a second horizontal screw, a connecting lug, and a crank. The connecting lug is fixed to the rear sidewall surface of the positioning block. The first horizontal screw passes through the support block, with its head placed on the front side of the support block. The second horizontal screw passes through the bottom of the V-shaped groove, with its head located on the rear sidewall surface of the positioning block. The middle part of the crank is hinged to the connecting lug via a pin connection, its front end contacts the end of the first horizontal screw, and its rear end is hinged to the head of the second horizontal screw.

[0007] The pin auxiliary assembly consists of a guide body, a pressure cap, and a nut arranged coaxially with the pin. The guide body includes a guide cover and a screw vertically fixed to the center of the guide cover. The outer diameter of the guide cover and the outer diameter of the pressure cap match the inner diameter of the pin through hole of the pre-crushing device. The end of the pin is connected to the guide cover by bolts. The pressure cap has a screw through hole in the center and a pressure plate slot on the side. The nut is rotatably connected to the screw. The screw is radially milled flat.

[0008] During the pre-assembly stage, the positioning block of the positioning auxiliary component is placed in the mounting groove, the lower surface of the support block contacts the upper surfaces of the two side plates of the mounting groove, and the lower surface of the positioning block contacts the bottom of the mounting groove; the pre-crushing equipment hoisting device is installed in the positioning auxiliary component, and the horizontal fine-tuning component and the vertical fine-tuning set screw adjust the position of the pin shaft through hole; in the pin shaft auxiliary component, the pressure cover is inserted into the second side plate of the mounting groove, the pressure plate slot is set upward, the guide cover is inserted into the first side plate of the mounting groove, the screw passes through the pin shaft through hole of the pre-crushing device and is inserted into the screw through hole of the pressure cover, and the nut is screwed into the screw and located outside the mounting groove; the positioning block and the pressure cover are fixed together by a pressure plate, the upper end of the pressure plate is fixedly connected to the pressure plate connecting part by bolts, and the lower end is inserted into the pressure plate slot of the pressure cover;

[0009] During the installation phase, as the nut is tightened, the screw of the guide body moves in the direction of the nut, and the pin follows the guide body in moving in the direction of the nut.

[0010] Preferably, it also includes a nut locking device, which includes a motor, a transmission connection assembly, and a nut fixing part connected in sequence. The nut fixing part has a placement groove that fits the shape of the nut. The motor drives the transmission connection assembly to make the nut rotate.

[0011] Preferably, the semicircular groove has the same radius as the semi-cylindrical structure, and the two groove walls of the V-shaped groove are located at the tangent position of the semicircular groove with an included angle of α.

[0012] Preferably, the head of the vertical fine-tuning set screw is located on the upper surface of the positioning block, and the end is located in the V-groove.

[0013] Preferably, the crank's rotation angle range is [-β, +β], and a groove is formed at the front end of the crank facing the support block, with the end of the first horizontal set screw contacting the bottom of the groove.

[0014] Preferably, the first horizontal set screw and the second horizontal set screw are arranged in parallel, and the first horizontal set screw, the crank and the second horizontal set screw are linked together. The first horizontal set screw extends and drives the crank to rotate clockwise. The end of the second horizontal set screw moves toward the connection part of the pre-crushing device and applies force to the connection part. The end of the vertical fine-tuning set screw abuts against the surface of the connection part of the pre-crushing device, and the end of the second horizontal set screw abuts against the surface of the connection part of the pre-crushing device.

[0015] Preferably, the total length of the positioning auxiliary component in the front-to-back direction is less than the distance between the positioning auxiliary component and the rear wall of the mounting groove, and the positioning auxiliary component is removed from the direction of the rear wall of the mounting groove after disassembly.

[0016] Preferably, the pin auxiliary component and the positioning auxiliary component are removed after installation.

[0017] Preferably, the cross-section of the screw is arc-shaped, and the area of ​​the arc is larger than the area of ​​the semicircle. The shape and size of the screw through hole of the cap are the same as the cross-sectional shape of the screw.

[0018] As can be seen from the above technical solution, the auxiliary positioning and installation device for pre-crushing equipment in a mining conveyor provided in this embodiment of the invention is used to assist the pre-crushing equipment in being hinged in the mounting groove on the side of the tail frame of the mining conveyor by means of a pin connection. The structure of the auxiliary positioning and installation device for pre-crushing equipment includes a positioning auxiliary component and a pin auxiliary component. The positioning auxiliary component is used to align the holes between the mounting groove and the pre-crushing device, and the pin auxiliary component is used to insert the pin into the holes of the mounting groove and the pre-crushing device. Through the structure provided by this invention, the assembly efficiency of the pre-crushing equipment can be improved, the operational difficulty and labor intensity of workers can be reduced, and product quality and operational safety can be improved. Attached Figure Description

[0019] Figure 1 This is a structural diagram of the auxiliary positioning and installation device for pre-crushing equipment of a mining conveyor according to the present invention.

[0020] Figure 2 This is a structural diagram of the positioning auxiliary component.

[0021] Figure 3 This is a structural diagram of the pin shaft auxiliary component.

[0022] Figure 4 This is a schematic diagram of a guide body.

[0023] Figure 5 This is a schematic diagram of the capping mechanism.

[0024] Figure 6 This is a schematic diagram of the gland and the pressure plate.

[0025] Figure 7 This is a schematic diagram showing the connection between the guide body, the gland, and the nut.

[0026] Figure 8 This is a schematic diagram of the pre-crushing equipment to be placed.

[0027] Figure 9 This is a schematic diagram of the pre-assembly stage before the screws are installed.

[0028] Figure 10 This is a diagram illustrating the completion of the pre-installation phase.

[0029] Figure 11 This image shows the effect after the pre-crushing equipment installation is completed and the positioning auxiliary components and pin auxiliary components have been removed.

[0030] In the diagram: 1. Pre-crushing equipment; 2. Installation slot; 3. Positioning auxiliary component; 4. Pin auxiliary component; 5. Hydraulic cylinder; 6. Pressure plate; 21. First side plate; 22. Second side plate; 31. Positioning block; 32. Support block; 33. Pressure plate connecting part; 34. Vertical fine-tuning screw; 35. First horizontal screw; 36. Second horizontal screw; 37. Crank; 38. Connecting ear; 41. Pin; 42. Guide cover; 43. Screw; 44. Nut; 45. Pressure cover; 451. Pressure plate slot; 452. Screw through hole. Detailed Implementation

[0031] The technical solution and effects of the present invention will be further described in detail below with reference to the accompanying drawings.

[0032] like Figure 1-9 As shown, this invention provides an auxiliary positioning and installation device for pre-crushing equipment in a mining conveyor. The device assists in hinged pre-crushing equipment 1 to a mounting groove 2 on the side of the tail frame of the mining conveyor via a pin connection. Pin holes are provided on the side plates of the left and right sides of the mounting groove 2. The connection part of the pre-crushing equipment 1 has a semi-cylindrical structure, and a pin through hole coaxial with the semi-cylindrical structure is provided at the connection part. The pin through hole and the pin hole are sized to match, and the hinged connection effect is as follows: Figure 11 As shown.

[0033] like Figure 1 As shown, the structure of the auxiliary positioning and installation device for the pre-crushing equipment includes a positioning auxiliary component 3 and a pin auxiliary component 4, wherein:

[0034] Reference Figure 2 The positioning auxiliary component 3 consists of a positioning block 31, a vertical fine-tuning screw, and a horizontal fine-tuning component. A V-shaped groove for connecting the pre-crushing device 1 is formed on the front side wall of the positioning block 31. The bottom of the V-shaped groove is a semi-circular groove, and the radius of this semi-circular groove is the same as that of the semi-cylindrical structure. The two groove walls of the V-shaped groove are located at the tangent to the semi-circular groove, with an included angle of α. The upper surface of the positioning block 31 is provided with support blocks 32 with a width greater than the positioning block 31 on both sides, and a pressure plate connecting part 33 with a protrusion on the upper side. Figure 2 When the positioning block 31 is placed in the mounting groove 2, the support block 32 is horizontally positioned with its lower surface in contact with the upper surfaces of the two side plates 21 and 22 of the mounting groove 2. The width of the support block 32 is wider than the distance between the inner sides of the mounting groove. The distance between the lower surface of the support block 32 and the lower surface of the positioning block 31 is equal to the vertical depth of the mounting groove 2. The side surface of the pressure plate connecting part 33 is flush with the outer surface of the second side plate 22 of the mounting groove 2, and an internal thread hole is opened on the side surface of the pressure plate connecting part 33.

[0035] The vertical fine-tuning screw 34 is vertically inserted into the upper part of the positioning block 31, with its end placed in the V-groove. The head of the vertical fine-tuning screw is located on the upper surface of the positioning block, and its end is located in the V-groove. The horizontal fine-tuning assembly consists of a first horizontal screw 35, a second horizontal screw 36, a crank 37, and a connecting ear 38. A pair of connecting ears 38 are fixed to the rear side wall surface of the positioning block 31. The first horizontal screw 35 is inserted into the support block 32, with its head placed on the front side of the support block 32. The second horizontal screw 36 is inserted into the bottom of the V-groove, with its head placed on the rear side wall surface of the positioning block 31. The middle part of the crank 37 is hinged to the connecting ear 38 by means of a pin connection. Its front end contacts the end of the first horizontal screw 35, and its rear end is hinged to the head of the second horizontal screw 36. The rotation angle range of the crank is [-β, +β]. A groove is opened on the front end of the crank 37 facing the support block 32, and the end of the first horizontal screw 35 contacts the bottom of the groove.

[0036] The first horizontal set screw 35 and the second horizontal set screw 36 are arranged in parallel. The first horizontal set screw 35, the crank 37 and the second horizontal set screw 36 are linked. The first horizontal set screw 35 extends and drives the crank 37 to rotate clockwise. The end of the second horizontal set screw 36 moves toward the connection part of the pre-crushing device 3 and applies force to the connection part. The end of the vertical fine-tuning set screw 34 abuts against the surface of the connection part of the pre-crushing device 3, and the end of the second horizontal set screw 36 abuts against the surface of the connection part of the pre-crushing device 3.

[0037] The total length of the positioning auxiliary component 3 in the front-to-back direction is less than the distance between the positioning auxiliary component and the rear wall of the mounting groove. After installation, the positioning auxiliary component 3 is disassembled and removed from the direction of the rear wall of the mounting groove.

[0038] like Figures 3-5 As shown, the pin auxiliary assembly 4 consists of a guide body, a pressure cap 45, and a nut 44 arranged coaxially with the pin 41. The guide body includes a guide cover 42 and a screw 43 vertically fixed to the center of the guide cover 42. The outer diameter of the guide cover and the outer diameter of the pressure cap match the inner diameter of the pin through hole of the pre-crushing equipment. The end of the pin 41 is connected to the guide cover 42 by bolts. The pressure cap 45 has a screw through hole 452 in the center and a pressure plate slot 451 on the side. The nut 44 is rotatably connected to the screw 43. Figure 4 As shown, the screw is radially milled flat, and the cross-section is arc-shaped, with the arc area being larger than the semicircle area; the head of the pin is located on the outer surface of the first side plate 21, and the head radius is larger than the pin hole radius.

[0039] like Figure 10As shown, during the pre-assembly stage, the positioning block 31 of the positioning auxiliary component is placed in the mounting groove 2, the lower surface of the support block 32 contacts the upper surfaces of the two side plates 21 and 22 of the mounting groove 2, and the lower surface of the positioning block 31 contacts the bottom of the mounting groove 2. The horizontal position of the positioning auxiliary component is adjusted so that the pressure plate connection part is directly above the pin hole on the second side plate 22, and the pressure plate connection part is bolted to the pressure plate 6. The pre-crushing equipment 1 is hoisted to the tail end of the machine, and the connection part of the pre-crushing equipment 1 is placed in the positioning auxiliary component 3, as shown. Figure 1 As shown, a hinged hydraulic cylinder 5 is located at the lower front of the mounting slot. Adjusting the angle of the hydraulic cylinder 5 allows it to support the pre-crushing device 1. The horizontal position of the pin through-hole is adjusted using the horizontal fine-tuning component, and the vertical position of the pin through-hole is adjusted using the vertical fine-tuning set screw 34. In the pin auxiliary component 4, the pressure cap 45 is inserted into the second side plate 22 of the mounting slot, and the pressure plate slot 451 is set upwards, perfectly matching the shape of the lower end of the pressure plate. The pressure plate prevents the pressure cap 45 from loosening and prevents rotation. The guide cover 42 of the guide body is inserted into the first side plate 21 of the mounting slot 2, as shown... Figure 7 As shown, the screw 43 passes through the pin hole of the pre-crushing device and is inserted into the screw through hole 452 of the pressure cap 45. Then, the nut 44 is screwed into the screw 43 until it contacts the pressure cap 45. The screw through hole of the pressure cap has the same cross-sectional shape and size as the screw, and is also arc-shaped. The threaded part is milled flat and, together with the fixing function of the screw through hole of the pressure cap, it is used to prevent the rotation of the guide body during the tightening of the nut, so that the guide body can only move in a straight line. Therefore, during the insertion of the guide body, it is necessary to ensure that the milled flat part of the screw is aligned with the screw through hole.

[0040] During the installation phase, as the nut 44 is tightened, the screw 43 moves toward the direction of the nut 44, and the pin 41 follows the guide body to move toward the direction of the nut 44 and enters the pin through hole of the pre-crushing device 1.

[0041] After the pin is fully in position, remove the bolts, nuts, and gland, remove the fasteners, unscrew the screws, and finally completely remove the pin auxiliary components and positioning auxiliary components. Installation is now complete.

[0042] Furthermore, the present invention may also include a nut locking device, which is composed of a motor, a transmission connection assembly and a nut fixing part connected in sequence. The nut fixing part has a placement groove that fits the shape of the nut for fixing the nut. The motor drives the transmission connection assembly to rotate the nut fixing part around the screw. The nut follows the nut fixing part and rotates in the tightening direction until the screw 43 drags the pin 41 completely into the pin through hole.

[0043] During use, the overhead crane lifts the pre-crushing equipment horizontally, with the lighter parts at the bottom and the heavier parts at the top. If using equal-length lifting chains cannot achieve the correct positioning, the heavier chain can be shortened to maintain a suitable assembly. This facilitates pushing it into the positioning device.

[0044] This invention provides an auxiliary positioning and installation device for pre-crushing equipment in a mining conveyor. This device assists in hinged pre-crushing equipment to a mounting slot on the side of the tail frame of the mining conveyor via a pin connection. The structure of the auxiliary positioning and installation device includes a positioning auxiliary component and a pin auxiliary component. The positioning auxiliary component aligns the holes between the mounting slot and the pre-crushing device, while the pin auxiliary component inserts the pin into the holes of both the mounting slot and the pre-crushing device. This invention solves the problems of lack of positioning during installation and the difficulty of manual alignment, reducing labor intensity during assembly and improving product quality and operational safety. Simultaneously, it improves the assembly efficiency of the pre-crushing equipment, reduces the impact on the accuracy of the connection parts, and improves the subsequent accuracy and lifespan of the product.

[0045] The above-disclosed embodiments are merely preferred embodiments of the present invention and should not be construed as limiting the scope of the invention. Those skilled in the art will understand that implementing all or part of the above-described embodiments and making equivalent changes in accordance with the claims of the present invention are still within the scope of the invention.

Claims

1. An auxiliary positioning and installation device for pre-crushing equipment in a mining conveyor, characterized in that, The auxiliary pre-crushing equipment is hinged to the mounting slot on the side of the tail frame of a mining conveyor via a pin connection. Pin holes are provided on the side plates of both sides of the mounting slot. The connection part of the pre-crushing equipment is a semi-cylindrical structure, and a pin through-hole coaxial with the semi-cylindrical structure is provided in the connection part. The structure of the auxiliary positioning and mounting device for the pre-crushing equipment includes a positioning auxiliary component and a pin auxiliary component, wherein: The positioning auxiliary component consists of a positioning block, a vertical fine-tuning screw, and a horizontal fine-tuning component. A V-shaped groove is formed on the front sidewall of the positioning block, with a semi-circular bottom. The upper surface of the positioning block has a support block with a width greater than the positioning block on both sides, and a protruding pressure plate connecting part on the upper side. The vertical fine-tuning screw passes vertically through the upper part of the positioning block, with its end placed within the V-shaped groove. The horizontal fine-tuning component consists of a first horizontal screw, a second horizontal screw, a connecting lug, and a crank. The connecting lug is fixed to the rear sidewall surface of the positioning block. The first horizontal screw passes through the support block, with its head placed on the front side of the support block. The second horizontal screw passes through the bottom of the V-shaped groove, with its head located on the rear sidewall surface of the positioning block. The middle part of the crank is hinged to the connecting lug via a pin connection, its front end contacts the end of the first horizontal screw, and its rear end is hinged to the head of the second horizontal screw. The pin auxiliary assembly consists of a guide body, a pressure cap, and a nut arranged coaxially with the pin. The guide body includes a guide cover and a screw vertically fixed to the center of the guide cover. The outer diameter of the guide cover and the outer diameter of the pressure cap match the inner diameter of the pin through hole of the pre-crushing device. The end of the pin is connected to the guide cover by bolts. The pressure cap has a screw through hole in the center and a pressure plate slot on the side. The nut is rotatably connected to the screw. The screw is radially milled flat. During the pre-assembly stage, the positioning block of the positioning auxiliary component is placed in the mounting groove, the lower surface of the support block contacts the upper surfaces of the two side plates of the mounting groove, and the lower surface of the positioning block contacts the bottom of the mounting groove; the pre-crushing equipment is hoisted in the positioning auxiliary component, and the horizontal fine-tuning component and the vertical fine-tuning set screw adjust the position of the pin shaft through hole; in the pin shaft auxiliary component, the pressure cover is inserted into the second side plate of the mounting groove, the pressure plate slot is set upward, the guide cover is inserted into the first side plate of the mounting groove, the screw passes through the pin shaft through hole of the pre-crushing equipment and is inserted into the screw through hole of the pressure cover, and the nut is screwed into the screw and located outside the mounting groove; the positioning block and the pressure cover are fixed together by a pressure plate, the upper end of the pressure plate is fixedly connected to the pressure plate connecting part by bolts, and the lower end is inserted into the pressure plate slot of the pressure cover; During the installation phase, as the nut is tightened, the screw of the guide body moves in the direction of the nut, and the pin follows the guide body in moving in the direction of the nut.

2. The auxiliary positioning and installation device for pre-crushing equipment of a mining conveyor as described in claim 1, characterized in that, It also includes a nut locking device, which comprises a motor, a transmission connection assembly, and a nut fixing part connected in sequence. The nut fixing part has a placement groove that fits the shape of the nut. The motor drives the transmission connection assembly to make the nut rotate.

3. The auxiliary positioning and installation device for pre-crushing equipment of a mining conveyor as described in claim 2, characterized in that, The semicircular groove has the same radius as the semi-cylindrical structure, and the two groove walls of the V-shaped groove are located at the tangent position of the semicircular groove with an included angle of α.

4. The auxiliary positioning and installation device for pre-crushing equipment in a mining conveyor as described in claim 3, characterized in that, The head of the vertical fine-tuning set screw is located on the upper surface of the positioning block, and the end is located in the V-groove.

5. The auxiliary positioning and installation device for pre-crushing equipment of a mining conveyor as described in claim 4, characterized in that, The crank has a rotation angle range of [-β, +β], and a groove is formed at the front end of the crank facing the support block. The end of the first horizontal set screw contacts the bottom of the groove.

6. The auxiliary positioning and installation device for pre-crushing equipment of a mining conveyor as described in claim 5, characterized in that, The first horizontal set screw and the second horizontal set screw are arranged in parallel. The first horizontal set screw, the crank and the second horizontal set screw are linked. The first horizontal set screw extends and drives the crank to rotate clockwise. The end of the second horizontal set screw moves toward the connection part of the pre-crushing device and applies force to the connection part. The end of the vertical fine-tuning set screw abuts against the surface of the connection part of the pre-crushing device, and the end of the second horizontal set screw abuts against the surface of the connection part of the pre-crushing device.

7. The auxiliary positioning and installation device for pre-crushing equipment of a mining conveyor as described in claim 6, characterized in that, The total length of the positioning auxiliary component in the front-to-back direction is less than the distance between the positioning auxiliary component and the rear wall of the mounting groove. After disassembly, the positioning auxiliary component is removed from the direction of the rear wall of the mounting groove.

8. The auxiliary positioning and installation device for pre-crushing equipment of a mining conveyor as described in claim 7, characterized in that, After installation, the pin auxiliary component and the positioning auxiliary component are removed.

9. The auxiliary positioning and installation device for pre-crushing equipment in a mining conveyor as described in claim 8, characterized in that, The cross-section of the screw is arc-shaped, and the area of ​​the arc is larger than the area of ​​the semicircle. The shape and size of the through hole of the screw in the cap are the same as the cross-sectional shape of the screw.

Images