Welding tool for wear-resistant layer of single-shaft crusher

Abstract

The invention discloses a welding tool for a wear-resistant layer of a single-shaft crusher, and relates to the technical field of crushers, the single-shaft crusher comprises a machine body, a cutter shaft and a cutter holder, and the welding tool comprises a support which can be spliced and fixed at the upper end of the machine body; the driving mechanism can transversely reciprocate on the support, the connecting rod is in sliding connection with the driving mechanism, and the driving piece can enable the connecting rod to reciprocate in the vertical direction; the welding gun is detachably connected to the bottom end of the connecting rod and connected with the welding machine assembly, and surfacing of a wear-resistant layer on the outer surface of the cutter shaft is achieved; the V-shaped auxiliary plate can be attached to the outer surface of the tool apron, a plurality of through welding channels are formed in the V-shaped auxiliary plate, and surfacing of a wear-resistant layer on the outer surface of the tool apron is achieved; and the control module is in signal connection with the driving mechanism and the welding machine assembly. According to the welding tool for the wear-resistant layer of the single-shaft crusher, the problems that existing wear-resistant layer surfacing is high in operation difficulty and low in efficiency are solved, the surfacing efficiency can be improved, and the surfacing difficulty can be reduced.

Description

Technical Field

[0001] The invention relates to the technical field of crushers, in particular to a welding tool for a wear-resistant layer of a single-shaft crusher. Background Art

[0002] As a key equipment for treating solid waste, single-shaft crusher is widely used in the crushing of domestic garbage, electronic waste, biomass and other industrial solid waste. Its working principle is to crush the material through the rapid bite shearing and tearing action between the moving knife on the knife shaft and the fixed knife fixed on the machine body. In order to ensure the crushing efficiency and the durability of the tool, the moving knife is usually made of high-strength and wear-resistant alloy materials, while the knife shaft and knife seat used to fix these moving knives are mostly made of general steel materials such as cast steel due to cost considerations. However, in actual use, the outer surfaces of the knife shaft and knife seat will inevitably rub against the crushed materials, making them vulnerable parts. In order to extend the service life of the knife shaft and knife seat and reduce the maintenance frequency, the outer surfaces of the knife shaft and knife seat are welded to form a wear-resistant layer.

[0003] At present, the implementation method of single-shaft crusher wear-resistant layer surfacing is as follows:

[0004] Remove the knife shaft for surfacing welding: Although it is convenient to perform surfacing welding operations on a fixed work platform, the disassembly process is cumbersome, time-consuming and labor-intensive. Moreover, when reinstalling after surfacing welding is completed, there may be interference between the moving knife blade and the fixed knife on the machine body due to assembly accuracy problems, requiring additional debugging and correction, which increases maintenance costs and time costs.

[0005] Surfacing welding with the knife shaft assembled: The space for surfacing welding is limited, the equipment layout is difficult, and the work is not easy to carry out. Secondly, especially when surfacing welding the outer surface of the knife seat, because the surfacing surface is not horizontal and has a large inclination, the welding material is not solidified in time, and the molten liquid is easy to flow, making it difficult for the surfacing layer to form an ideal shape and thickness, which seriously affects the surfacing quality and the wear resistance of the knife shaft and knife seat.

[0006] Therefore, how to provide a welding tool for the wear-resistant layer of a single-shaft crusher to improve the surfacing efficiency and reduce the difficulty of surfacing is a technical problem that technicians in this field currently need to solve. Summary of the invention

[0007] The purpose of the invention is to provide a welding tool for the wear-resistant layer of a single-shaft crusher, which solves the technical problems of high difficulty and low efficiency in the existing surfacing welding of the wear-resistant layer of the crusher.

[0008] To achieve the above object, the present invention provides a welding tool for the wear-resistant layer of a single-shaft crusher. The single-shaft crusher includes a body, a cutter shaft and a cutter seat. The cutter shaft is rotatably connected to the body, and the cutter seat is fixed to the outer peripheral surface of the cutter shaft. The welding tool includes:

[0009] A bracket, which can be spliced ​​and fixed to the upper end of the body;

[0010] A driving mechanism and a connecting rod, wherein the driving mechanism can reciprocate laterally on the bracket, the connecting rod is slidably connected to the driving mechanism, and the driving member can make the connecting rod reciprocate in the vertical direction;

[0011] A welding gun is detachably connected to the bottom end of the connecting rod, and the welding gun is connected to the welding machine assembly to realize surfacing welding of the wear-resistant layer on the outer surface of the knife shaft to form the wear-resistant layer of the knife shaft;

[0012] A V-shaped auxiliary plate can be attached to the outer surface of the knife seat, and the V-shaped auxiliary plate is provided with a plurality of penetrating welding channels to realize surfacing welding of the wear-resistant layer on the outer surface of the knife seat to form a wear-resistant layer of the knife seat;

[0013] A control module establishes a signal connection with the driving mechanism and the welding machine component.

[0014] Preferably, the support comprises:

[0015] Legs, two of the legs are connected to the two side wall panels of the body respectively;

[0016] A crossbeam section, wherein a plurality of the crossbeam sections are spliced ​​together to form a crossbeam, and two ends of the crossbeam are correspondingly and detachably fixedly connected to the supporting legs.

[0017] Preferably, the driving mechanism comprises:

[0018] A driving box is slidably connected to the upper end of the crossbeam, and the connecting rod vertically passes through the driving box and is slidably connected to the driving box;

[0019] A first motor is arranged on the driving box, a first gear is arranged on the first motor, a first rack is arranged on the top end of the crossbeam along the length direction, the first rack is meshed with the first gear, so as to realize the transverse reciprocating motion of the driving box on the crossbeam;

[0020] The second motor is arranged on the driving box, the second motor is provided with a second gear, the connecting rod is provided with a second rack meshing with the second gear, so as to realize the reciprocating motion of the connecting rod in the vertical direction, and the first motor and the second motor both establish signal connection with the control module.

[0021] Preferably, the drive box is an L-shaped structure, the corner of the drive box is engaged with the upper end of the beam, the side wall of the beam facing the drive box is provided with a sliding groove, and the outer wall of the drive box is provided with a pulley that cooperates with the sliding groove.

[0022] Preferably, slide rails are vertically symmetrically arranged in the driving box, and slide grooves cooperating with the slide rails are arranged on the side walls at both ends of the connecting rod.

[0023] Preferably, a limit block is provided at the top end of the connecting rod.

[0024] Preferably, the welding gun is fixedly connected to the connecting rod by bolts; and both ends of the crossbeam are fixed to the supporting legs by locking screws.

[0025] Preferably, the welding machine assembly comprises a welding machine power supply, a welding wire barrel, and welding wire. The welding machine power supply is electrically connected to the welding gun, the welding gun can automatically feed wire, and the welding gun and the welding machine power supply establish a signal connection with the control module.

[0026] Preferably, the included angle of the V-shaped auxiliary plate is degrees.

[0027] Preferably, the V-shaped auxiliary plate is a copper plate or a copper alloy plate.

[0028] Compared with the above background technology, the present invention provides a welding tool for the wear-resistant layer of a single-shaft crusher. When the cutter shaft is subjected to wear-resistant layer surfacing welding, a driving mechanism is used to adjust the welding gun to a suitable initial surfacing position to ensure that the welding gun can accurately align with the outer surface of the cutter shaft; the surfacing current, surfacing speed and other parameters are set in the control module to ensure the stability and quality of the surfacing process. The welding gun automatically moves the wire and moves horizontally along a preset path to form a regular straight surfacing stripe, i.e., the wear-resistant layer of the cutter shaft. When the welding gun moves to the position of the cutter seat, the operator needs to manually operate the control module to make the welding gun cross the cutter seat. After crossing, the automatic surfacing mode is restored to continue to form new surfacing stripes. After completing the first surfacing stripe, the cutter shaft is manually rotated to rotate a certain angle, and the position of the cutter shaft is re-fixed; the automatic surfacing is started again to form the second surfacing stripe; the above steps are repeated as needed until the entire cutter shaft is evenly covered with a wear-resistant layer. Overlay welding of the wear-resistant layer of the tool holder: Place the V-shaped auxiliary plate close to the upper surface of the tool holder and fix it with an appropriate fixing device (such as a clamp) to ensure that the molten liquid will not flow due to gravity during the overlay welding process, thereby affecting the formation of the overlay welding layer. Before overlay welding the tool holder, you need to disconnect the welding gun from the connecting rod, hold the welding gun in your hand, and extend it into the welding channel on the V-shaped auxiliary plate. Overlay welding is performed along the preset welding channel to form the wear-resistant layer of the tool holder. After the overlay welding material is completely cooled, remove the V-shaped auxiliary plate.

[0029] Therefore, the welding tooling for the wear-resistant layer of a single-shaft crusher provided in the present application improves the surfacing efficiency and reduces the surfacing difficulty. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

[0031] Figure 1 A front view of a welding tool for a wear-resistant layer of a single-shaft crusher provided by an embodiment of the present invention;

[0032] Figure 2 A left view of a welding tool for a wear-resistant layer of a single-shaft crusher provided by an embodiment of the present invention;

[0033] Figure 3 A top view of a welding tool for a wear-resistant layer of a single-shaft crusher provided by an embodiment of the present invention;

[0034] Figure 4 for Figure 2 A partial enlarged schematic diagram of

[0035] Figure 5 for Figure 4 A partial enlarged schematic diagram of

[0036] Figure 6 This is a schematic diagram of the V-shaped auxiliary plate structure provided in an embodiment of the present invention.

[0037] in:

[0038] 1-machine body, 2-knife shaft, 3-knife seat, 4-connecting rod, 5-welding gun, 6-knife shaft wear-resistant layer, 7-V-shaped auxiliary plate, 8-welding channel, 9-knife seat wear-resistant layer, 10-welding machine power supply, 11-support leg, 12-crossbeam section, 13-crossbeam, 14-drive box, 15-first rack, 16-second rack, 17-sliding groove, 18-pulley, 19-sliding groove, 20-wire barrel, 21-welding wire. DETAILED DESCRIPTION

[0039] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0040] In order to enable those skilled in the art to better understand the scheme of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0041] See also Figure 1-Figure 3 The present application provides a welding tool for the wear-resistant layer of a single-shaft crusher. The single-shaft crusher includes a body 1, a knife shaft 2 and a knife seat 3. The knife shaft 2 is rotatably connected to the body 1, and the knife seat 3 is welded and spirally evenly distributed on the outer circumference of the knife shaft 2. The welding tool includes a bracket, which can be spliced ​​and fixed to the upper end of the body 1; a driving mechanism and a connecting rod 4. The driving mechanism is arranged on the bracket, and the driving mechanism can reciprocate laterally on the bracket. The connecting rod 4 is slidably connected to the driving mechanism, and the driving member can make the connecting rod 4 reciprocate in the vertical direction; a welding gun 5, which can be detachably connected to the bottom end of the connecting rod 4, and the welding gun 5 is connected to the welding machine assembly to realize the surfacing welding of the wear-resistant layer on the outer surface of the knife shaft 2 to form a knife shaft wear-resistant layer 6; a V-shaped auxiliary plate 7, which can be attached to the outer surface of the knife seat 3, and a plurality of penetrating welding channels 8 are provided on the V-shaped auxiliary plate 7 to realize the surfacing welding of the wear-resistant layer on the outer surface of the knife seat 3 to form a knife seat wear-resistant layer 9; a control module establishes a signal connection with the driving mechanism and the welding machine assembly.

[0042] Specifically, the bracket is a splicable structure, which can flexibly adapt to different types of single-shaft crushers and is firmly fixed to the upper end of the body 1.

[0043] The driving mechanism is arranged on the bracket, and has the ability to reciprocate horizontally, and can adjust the position of the welding gun 5 in the horizontal direction. The connecting rod 4 is connected to the driving mechanism by a sliding connection, so that the connecting rod 4 can reciprocate in the vertical direction, thereby controlling the height position of the welding gun 5.

[0044] The welding gun 5 is installed at the bottom end of the connecting rod 4 in a detachable connection manner, which is convenient for replacement and maintenance.

[0045] The V-shaped auxiliary plate 7 is designed to fit tightly against the outer surface of the tool holder 3, and its shape matches the contour of the tool holder 3, ensuring that the molten liquid will not flow due to gravity during cladding, thereby ensuring good forming of the cladding layer; a number of through welding channels 8 are provided on the V-shaped auxiliary plate 7, and the channels allow the welding nozzle of the welding gun 5 to pass through and directly align with the area of ​​the tool holder 3 that needs cladding, thereby achieving precise cladding; the control module establishes a communication connection with the drive mechanism and the welding machine assembly through a signal line to achieve automatic or manual control.

[0046] When the knife shaft is subjected to wear-resistant layer cladding:

[0047] Use the driving mechanism to adjust the welding gun 5 to a suitable initial surfacing position to ensure that the welding gun 5 can be accurately aligned with the outer surface of the knife shaft 2; set the surfacing current and surfacing speed related parameters in the control module to ensure the stability and quality of the surfacing process.

[0048] The welding gun 5 automatically moves the wire and horizontally along a preset path to form regular straight-line surfacing stripes, namely, the blade shaft wear-resistant layer 6.

[0049] When the welding gun 5 moves to the position of the knife holder 3, the operator needs to manually operate the control module to make the welding gun 5 cross the knife holder 3. After crossing, the automatic surfacing mode is restored to continue to form new surfacing stripes.

[0050] After the first surfacing stripe is completed, the knife shaft 2 is manually rotated to a certain angle, and the position of the knife shaft 2 is re-fixed; the automatic surfacing is started again to form the second surfacing stripe;

[0051] Repeat the above steps as needed until the entire blade shaft 2 is evenly covered with the wear-resistant layer.

[0052] Surfacing welding of the wear-resistant layer of the knife seat 3:

[0053] The V-shaped auxiliary plate 7 is placed close to the upper surface of the tool holder 3 and fixed with a suitable fixing device (such as a clamp) to ensure that the molten metal will not flow due to gravity during the cladding process, thereby affecting the formation of the cladding layer.

[0054] Before performing surfacing welding on the tool seat, it is necessary to disconnect the welding gun 5 from the connecting rod 4, hold the welding gun 5, insert it into the welding channel 8 on the V-shaped auxiliary plate 7, and perform surfacing welding along the preset welding channel 8 to form a tool seat wear-resistant layer 9. After the surfacing material is completely cooled, remove the V-shaped auxiliary plate 7.

[0055] Specifically, the welding gun 5 is fixedly connected to the connecting rod 4 by bolts, that is, screw holes or threaded columns are reserved on the welding gun 5 and the connecting rod 4, and the two are tightly fixed together by tightening the bolts;

[0056] See also Figure 2 The bracket includes a support leg 11, and the two support legs are correspondingly connected to the two side wall panels of the body 1; a beam section 12, and a plurality of beam sections 12 are spliced ​​to form a beam 13, and the two ends of the beam 13 are correspondingly detachably fixedly connected to the support legs 11, and the two ends of the beam 13 are fixed to the support legs 11 by locking screws.

[0057] That is, each leg 11 is connected to the wall panels on both sides of the machine body 1, and the crossbeam 13 is formed by splicing a plurality of crossbeam sections 12. The number of crossbeam sections 12 can be flexibly adjusted according to actual needs to adapt to single-shaft crushers of different specifications. The splicing between the crossbeam sections 12 adopts a detachable fixed connection method, which is convenient for installation and disassembly, and is also convenient for transportation and storage. It can be connected by a pin type connection or a dovetail groove connection.

[0058] Both ends of the crossbeam 13 are fixed to the supporting legs 11 by means of locking screws, ensuring that the connection between the crossbeam 13 and the supporting legs 11 is firm and reliable.

[0059] The present application also provides another embodiment, in which the cross beam 13 is an integral part.

[0060] See also Figure 1 , Figure 2 and Figure 4 The driving mechanism includes a driving box 14, which is slidably connected to the upper end of the beam 13, and the connecting rod 4 vertically passes through the driving box 14 and is slidably connected to the driving box 14; a first motor is arranged on the driving box 14, and a first gear is arranged on the first motor. A first rack 15 is arranged at the top end of the beam 13 along the length direction, and the first rack 15 is meshed with the first gear, thereby realizing the horizontal reciprocating motion of the driving box 14 on the beam 13; a second motor is arranged on the driving box 14, and a second gear is arranged on the second motor. A second rack 16 meshed with the second gear is arranged on the connecting rod 4, thereby realizing the reciprocating motion of the connecting rod 4 in the vertical direction, and the first motor and the second motor both establish signal connections with the control module.

[0061] Specifically, the drive box 14 is slidably connected to the upper end of the cross beam 13, allowing the drive box 14 to move freely on the cross beam 13, and the connecting rod 4 vertically passes through the drive box 14 and maintains a slidable connection with the drive box 14;

[0062] The first motor is arranged on the driving box 14 and is equipped with a first gear. A first rack 15 is arranged at the top end of the beam 13 along the length direction. The first rack 15 is meshed with the first gear. When the first motor is started, it drives the first gear to rotate, and then realizes the lateral reciprocating motion of the driving box 14 on the beam 13 through the meshing relationship with the first rack 15.

[0063] The second motor is also arranged on the driving box 14 and is equipped with a second gear, and a second rack 16 meshing with the second gear is arranged on the connecting rod 4. When the second motor is started, the second gear is driven to rotate, and then the connecting rod 4 is meshed with the second rack 16 to realize the reciprocating motion of the connecting rod 4 in the vertical direction.

[0064] Working principle:

[0065] When the drive box 14 needs to move horizontally on the beam 13, the control module will send a signal to the first motor. After receiving the signal, the first motor starts and drives the first gear to rotate. The first gear engages with the first rack on the beam, thereby driving the drive box 14 to move on the beam, that is, adjusting the position of the welding gun 5 in the horizontal direction (that is, the length direction of the machine body).

[0066] When the connecting rod 4 needs to move in the vertical direction, the control module sends a signal to the second motor. After receiving the signal, the second motor starts and drives the second gear to rotate. The second gear engages with the second rack 16 on the connecting rod 4, thereby driving the connecting rod 4 to move in the vertical direction, that is, adjusting the position of the welding gun in the vertical direction (that is, the height direction of the machine body).

[0067] Through programmed or preset parameters, the control module can control the start, stop, rotation speed and direction of the motor to achieve the movement of the welding gun.

[0068] Based on the above embodiments, see Figure 4 The drive box 14 is designed as an L-shaped structure, and the corner of the drive box 14 is engaged with the upper end of the beam 13, ensuring the stability of the drive box 14 on the beam 13 and preventing shaking or falling off during movement.

[0069] A sliding groove 17 is provided on the side wall of the cross beam 13 facing the drive box 14. The sliding groove 17 extends along the length direction of the cross beam 13, providing a track for the lateral movement of the drive box 14. The sliding groove 17 not only provides guidance for the movement of the drive box 14, but also limits its movement direction, ensuring that the drive box 14 can only move along a predetermined path.

[0070] Similarly, a pulley 18 cooperating with the sliding groove 17 is provided on the outer wall of the driving box 14. The pulley 18 is installed on the side of the driving box 14 and forms a rolling contact with the sliding groove 17. The pulley 18 reduces the friction between the driving box 14 and the crossbeam 13, so that the driving box 14 can move more easily along the sliding groove 17. At the same time, the pulley 18 also provides additional support, enhancing the stability of the driving box 14 during movement.

[0071] When the first motor drives the first gear to rotate, the first gear meshes with the first rack 15 on the crossbeam 13 , thereby driving the driving box 14 to move on the crossbeam 13 along the guidance of the sliding groove 17 and the pulley 18 .

[0072] On the basis of the above-mentioned embodiment, slide rails are vertically symmetrically arranged in the driving box 14, which provide guidance for the vertical movement of the connecting rod 4, limit its moving direction, and prevent the connecting rod 4 from deviating or shaking during the movement; slide grooves 19 cooperating with the slide rails are arranged on the side walls at both ends of the connecting rod 4, and the slide grooves 19 extend along the length direction of the connecting rod 4 to form a sliding fit with the slide rails in the driving box 14; the use of the slide grooves 19 in combination with the slide rails enables the connecting rod 4 to move vertically along a predetermined path in the driving box 14.

[0073] A limit block is provided at the top end of the connecting rod 4 to limit the vertical movement range of the connecting rod 4, thereby ensuring that the connecting rod 4 does not exceed a predetermined range when moving vertically.

[0074] Based on the above embodiment, the welding assembly includes a welding power supply 10, a welding wire barrel 20 and a welding wire 21. The welding power supply 10 is responsible for providing the required electrical energy for the welding process and establishing an electrical connection with the welding gun 5 to ensure that the welding gun can obtain stable and appropriate current and voltage during welding.

[0075] The welding wire barrel 20 is used to store the welding wire 21. During welding, the welding wire is fed into the weld area through the wire feeding mechanism of the welding gun 5, and melts and combines with the workpiece at high temperature. The welding gun 5 of this application has an automatic wire feeding function. Regarding the direct use of the existing mature technology for the use of the welding gun 5, this application does not elaborate on the specific structure of the welding gun 5.

[0076] A signal connection is established between the welding gun 5 and the welding power supply 10 and the control module, so that the control module can adjust welding parameters (such as current, voltage, etc.) and wire feeding speed.

[0077] The control module (which can be a PLC logic controller) is divided into automatic mode and manual mode. In automatic mode, the control module automatically performs welding tasks according to the welding parameters and welding gun movement parameters preset by the user. In manual mode, the user can manually control the operation of the welding machine and the movement of the welding gun through buttons, knobs or touch screens on the control panel. The manual mode allows the user to adjust the welding parameters according to real-time conditions to adapt to different welding requirements and workpiece characteristics.

[0078] Based on the above embodiments, see Figure 6 , the included angle of the V-shaped auxiliary plate 7 is 90 degrees; the V-shaped auxiliary plate 7 is a copper plate or a copper alloy plate.

[0079] Specifically, the angle of 90 degrees can ensure that a stable contact surface is formed between the V-shaped auxiliary plate 7 and the tool holder 3 .

[0080] The V-shaped auxiliary plate 7 is made of copper or copper alloy, which is incompatible with the welding wire melt and is convenient to remove after the cladding layer is cooled.

[0081] Directions:

[0082] Preparation work, first of all, make sure that the single-shaft crusher has been completely powered off to avoid electric shock accidents during welding; set up obvious warning cordons around the crusher to prevent unauthorized personnel from entering; arrange warning supervisors to supervise the effectiveness of the cordons and ensure that no one approaches the crusher during welding.

[0083] Clean the inside of the crusher cavity thoroughly to remove impurities, oil stains, etc. that may affect the welding quality; grind the defects on the surface of the crusher shaft to ensure that the surface is flat, rust-free, and oil-free so that the welding wire can be firmly attached to the shaft 2.

[0084] Use measuring tools to accurately measure the height required for surfacing, and assemble the bracket required for welding tooling based on the actual operating space and measurement results; fix the welding gun 5 to the bottom end of the connecting rod 4, and ensure that the distance and angle between the welding gun and the cutter shaft are appropriate to facilitate welding operations; insert the welding wire 21 to ensure that the welding wire can flow smoothly from the welding gun, and prepare the welding wire barrel 20 and the welding power supply 10; the welding wire barrel and the welding power supply can be placed on the ground, but ensure that the length of the connecting cable is sufficient and will not hinder the welding operation; the operator enters the crusher body 1 and uses the preheating equipment to preheat the cutter shaft 2.

[0085] When the knife shaft is subjected to wear-resistant layer cladding:

[0086] Use the driving mechanism to adjust the welding gun 5 to a suitable initial surfacing position to ensure that the welding gun 5 can be accurately aligned with the outer surface of the knife shaft 2; set the surfacing current, surfacing speed and other parameters in the control module to ensure the stability and quality of the surfacing process.

[0087] The welding gun 5 automatically moves the wire and horizontally along a preset path to form regular straight-line surfacing stripes, namely, the blade shaft wear-resistant layer 6.

[0088] When the welding gun 5 moves to the position of the knife holder 3, the operator needs to manually operate the control module to make the welding gun 5 cross the knife holder 3. After crossing, the automatic surfacing mode is restored to continue to form new surfacing stripes.

[0089] After the first surfacing stripe is completed, the knife shaft 2 is manually rotated to a certain angle, and the position of the knife shaft 2 is re-fixed; the automatic surfacing is started again to form the second surfacing stripe;

[0090] Repeat the above steps as needed until the entire blade shaft 2 is evenly covered with the wear-resistant layer 6.

[0091] Surfacing welding of the wear-resistant layer of the knife seat 3:

[0092] The V-shaped auxiliary plate 7 is placed close to the upper surface of the tool holder 3 and fixed with a suitable fixing device (such as a clamp) to ensure that the molten metal will not flow due to gravity during the cladding process, thereby affecting the formation of the cladding layer.

[0093] Before performing surfacing welding on the tool seat, it is necessary to disconnect the welding gun 5 from the connecting rod 4, hold the welding gun 5, insert it into the welding channel 8 on the V-shaped auxiliary plate 7, and perform surfacing welding along the preset welding channel 8 to form a tool seat wear-resistant layer 9. After the surfacing welding material is completely cooled, remove the V-shaped auxiliary plate 7; after the surfacing welding of the first tool seat is completed, directly use the second V-shaped auxiliary plate 7 to surfacing the second tool seat 3. After the V-shaped auxiliary plate 7 is used up, remove the previously cooled tooling and continue surfacing welding, which effectively increases the surfacing welding speed of the tool seat until all tool seats are surfacing welded.

[0094] After the knife shaft is welded, rotate the knife shaft to check whether there is any interference with the fixed knife. If there is any interference, grind it. If there is no interference, the welding work is completed.

[0095] It should be noted that, in this specification, relational terms such as first and second are merely used to distinguish one entity from other entities, but do not necessarily require or imply any actual relationship or order between these entities.

[0096] The principles and implementation methods of the present invention are described in this article using specific examples. The description of the above embodiments is only used to help understand the method and core ideas of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made to the present invention without departing from the principles of the present invention, and these improvements and modifications also fall within the scope of protection of the claims of the present invention.

Claims

1. A welding tool for a wear-resistant layer of a single-shaft crusher, the single-shaft crusher comprising a body (1), a cutter shaft (2) and a cutter seat (3), the cutter shaft (2) being rotatably connected to the body (1), the cutter seat (3) being fixedly arranged on the outer peripheral surface of the cutter shaft (2), characterized in that: Welding tooling includes: A bracket, which can be spliced ​​and fixed to the upper end of the body (1); A driving mechanism and a connecting rod (4), wherein the driving mechanism can reciprocate laterally on the bracket, the connecting rod (4) is slidably connected to the driving mechanism, and the driving member can cause the connecting rod (4) to reciprocate in the vertical direction; A welding gun (5) is detachably connected to the bottom end of the connecting rod (4), and the welding gun (5) is connected to a welding machine assembly to realize surfacing welding of the wear-resistant layer on the outer surface of the knife shaft (2) to form a knife shaft wear-resistant layer (6); A V-shaped auxiliary plate (7) can be attached to the outer surface of the knife seat (3), and a plurality of penetrating welding channels (8) are provided on the V-shaped auxiliary plate (7) to realize surfacing welding of the wear-resistant layer on the outer surface of the knife seat (3) to form a knife seat wear-resistant layer (9); A control module establishes a signal connection with the driving mechanism and the welding machine component.

2. A welding tool for the wear-resistant layer of a single-shaft crusher according to claim 1, characterized in that: The support comprises: Support legs (11), the two support legs (11) being connected to the side wall panels of the body (1) respectively; A crossbeam section (12), wherein a plurality of the crossbeam sections (12) are spliced ​​together to form a crossbeam (13), and two ends of the crossbeam (13) are detachably fixedly connected to the supporting legs (11).

3. A welding tool for the wear-resistant layer of a single-shaft crusher according to claim 2, characterized in that: The driving mechanism comprises: A drive box (14) is slidably connected to the upper end of the crossbeam (13); the connecting rod (4) vertically passes through the drive box (14) and is slidably connected to the drive box (14); a first motor, arranged on the drive box (14), the first motor being provided with a first gear, a first rack (15) being provided at the top end of the crossbeam (13) along the length direction, the first rack (15) being meshed with the first gear, thereby achieving lateral reciprocating motion of the drive box (14) on the crossbeam (13); A second motor is arranged on the drive box (14), a second gear is arranged on the second motor, and a second rack (16) meshing with the second gear is arranged on the connecting rod (4), so as to realize reciprocating motion of the connecting rod (4) in the vertical direction, and both the first motor and the second motor establish signal connection with the control module.

4. A welding tool for the wear-resistant layer of a single-shaft crusher according to claim 3, characterized in that: The drive box (14) is an L-shaped structure, the corner of the drive box (14) is engaged with the upper end of the crossbeam (13), a sliding groove (17) is provided on the side wall of the crossbeam (13) facing the drive box (14), and a pulley (18) cooperating with the sliding groove (17) is provided on the outer wall of the drive box (14).

5. The welding tool for the wear-resistant layer of a single-shaft crusher according to claim 3, characterized in that: Slide rails are vertically symmetrically arranged in the driving box (14), and slide grooves (19) cooperating with the slide rails are arranged on the side walls at both ends of the connecting rod (4).

6. A welding tool for the wear-resistant layer of a single-shaft crusher according to claim 5, characterized in that: A limit block is provided at the top end of the connecting rod (4).

7. The welding tool for the wear-resistant layer of a single-shaft crusher according to claim 4, characterized in that: The welding gun (5) is fixedly connected to the connecting rod (4) via bolts; and both ends of the crossbeam (13) are fixed to the supporting legs (11) via locking screws.

8. The welding tool for the wear-resistant layer of a single-shaft crusher according to claim 1, characterized in that: The welding machine assembly comprises a welding machine power supply (10), a welding wire barrel (20), and a welding wire (21); the welding machine power supply (20) is electrically connected to the welding gun (5); the welding gun (5) can automatically feed the wire; and the welding gun (5) and the welding machine power supply (20) establish a signal connection with the control module.

9. A welding tool for the wear-resistant layer of a single-shaft crusher according to claim 8, characterized in that: The included angle of the V-shaped auxiliary plate (7) is 90 degrees.

10. A welding tool for the wear-resistant layer of a single-shaft crusher according to claim 9, characterized in that: The V-shaped auxiliary plate (7) is a copper plate or a copper alloy plate.

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