A welding device for motor housings used in mining

Abstract

This invention relates to motor housing welding technology and discloses a welding device for motor housings used in mining, comprising: a sliding base including a horizontally arranged C-shaped base with an opening on the front side, a rotary drive module on the rear side, a C-shaped retaining ring on the top, and support legs evenly arranged on the outer side, with pulleys at the bottom of the support legs; a lifting module on the rear side of the rotary drive module; a C-shaped surround module rotatably mounted on the sliding base and driven to rotate by the rotary drive module, with a clamping and positioning module on its inner side; a shaft positioning module and a welding module, respectively mounted on the lifting block of the lifting module; the shaft positioning module including a rotating shaft claw positioned directly above the C-shaped retaining ring; and an end cap positioning module positioned at the bottom of the rotating shaft claw for positioning the end cap. The advantage of this invention compared to existing technologies is that it can quickly determine the motor shaft center through the motor shaft and automatically weld the motor housing circumferentially.

Description

Technical Field

[0001] This invention relates to motor housing welding technology, specifically to a welding device for motor housings used in mining. Background Technology

[0002] Mining motors are special industrial motors designed specifically for the harsh environment of mines. They need to meet requirements such as high strength, explosion-proof, high protection level and high efficiency. Therefore, their motor housings are often designed to balance protection, durability and heat dissipation, and are made of high-strength cast iron material with a certain thickness. At the same time, in order to improve explosion-proof and protection performance, the motor housings are often tightly connected and sealed by welding and other methods to prevent flame leakage and adapt to high dust and high humidity environments.

[0003] In existing mining motors, the motor housing is often placed on a rotating base. After centering and clamping to determine the shaft center, the motor housing is rotated while the connection points are welded to the motor housing, so that the end cap is welded to the motor housing. However, some motor housings are asymmetrical and irregular, making it difficult to determine the position of the shaft center through centering and clamping. When controlling the rotation, the shaft center deviates, resulting in poor welding effect. In addition, the housing of mining motors is made of high-strength cast iron with a certain thickness, which is quite heavy. It is very difficult and laborious to place it on the rotating base, which seriously reduces the welding efficiency of the motor housing and poses a risk of the motor housing slipping and falling and causing injury during transportation. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to provide a welding device for motor housing in mining, which does not require moving the motor housing, and can quickly determine the motor shaft center through the motor shaft. After positioning the motor housing, the welding module is driven to rotate around the motor housing and automatically weld the motor housing in the circumferential direction.

[0005] To solve the above-mentioned technical problems, the technical solution provided by the present invention is as follows:

[0006] A welding device for the casing of a mining motor, comprising:

[0007] The sliding base includes a horizontally arranged C-shaped base with an opening on the front side, a rotary drive module on the rear side, a C-shaped retaining ring on the top, and support legs evenly arranged on the outer side, with pulleys at the bottom of the support legs. A lifting module is located behind the rotary drive module, and a lifting block is slidably arranged on the lifting module.

[0008] The C-shaped surround module is rotatably mounted on the sliding base and rotates after being driven by the rotation drive module. A clamping and positioning module is provided on the inner side.

[0009] A shaft positioning module and a welding module are respectively set on the lifting block. The shaft positioning module includes a rotating shaft claw set directly above the C-shaped retaining ring.

[0010] The end cap positioning module is located at the bottom of the rotating shaft claw to position the end cap.

[0011] Furthermore, the C-shaped surround module includes a C-shaped collar adapted to the C-shaped retaining ring, which is movably sleeved on the C-shaped retaining ring, and a matching incomplete toothed ring is provided at the bottom. The support legs are arranged radially along the C-shaped base, and a positioning wheel is rotatably provided at the top. The positioning wheel abuts against the outer wall of the C-shaped collar, and the bottom of the two positioning wheels is rotatably provided with transmission gears that mesh with the incomplete toothed ring. The two transmission gears are arranged in a mirror image to the left and right.

[0012] Furthermore, a matching protective sleeve is fixedly provided on the C-shaped retaining ring, an incomplete toothed ring is arranged inside the protective sleeve, and the protective sleeve is movably sleeved on the C-shaped retaining ring, and a transmission notch is provided corresponding to the transmission gear.

[0013] Furthermore, the rotary drive module includes a gear box mounted on the rear support leg, a rotary motor mounted on the top of the gear box, and a drive bevel gear connected to the drive shaft of the rotary motor mounted on the inner side. Transmission modules are mounted on the left and right sides respectively, and the transmission gears on both sides are rotatably connected to the drive bevel gear through the transmission modules to rotate synchronously in the same direction.

[0014] Furthermore, the clamping and positioning module includes a clamping plate and a transverse beam fixed inside the C-shaped collar. A mounting box is fixedly installed in the middle of the transverse beam, and a clamping turntable is installed on the top of the mounting box. Clamping screws are rotatably installed inside the transverse beams on both sides, and the clamping turntable and the clamping screws on both sides are meshed by bevel gears. A clamping slide is slidably installed inside the transverse beam, and the clamping slide is threadedly engaged with the corresponding clamping screw and connected to the clamping plate through a parallel flipping structure.

[0015] Furthermore, the axis positioning module includes a support module mounted on the lifting module. The support module includes an L-shaped support rod fixed to the front side of the lifting block. A gas spring is vertically mounted at one end of the horizontal section of the L-shaped support rod, and a vertical sleeve is rotatably mounted at the other end. A vertical rod is slidably mounted inside the vertical sleeve. A connecting plate is mounted on the top of the vertical rod, and the other end of the connecting plate is connected to the telescopic end of the gas spring. After the vertical rod slides up and down, it is supported and suspended by the gas spring. The rotating shaft claw is mounted at the bottom of the vertical rod.

[0016] Furthermore, the rotating shaft chuck includes an annular chuck disk, on which a spiral disk is rotatably mounted. The top of the spiral disk is connected to a connecting rod arranged circumferentially at the bottom of the upright, and a chuck is slidably mounted radially. The bottom of the chuck engages with the spiral disk, and an adjusting rotating ring is sleeved and fixed on the spiral disk.

[0017] Furthermore, the end cap positioning module includes a positioning disk that is sleeved and fixed to the bottom of the annular claw disk. Positioning sleeves and rotating caps are rotatably arranged on both sides of the positioning disk. A positioning screw is slidably arranged inside the positioning sleeve via a key. The rotating cap is arranged corresponding to the positioning sleeve and is threaded onto the positioning screw. A positioning end cap is provided at the bottom of the positioning screw.

[0018] The advantages of this invention compared to the prior art are:

[0019] 1. This invention determines the rotation axis of the motor housing by setting an axis positioning module, and clamps and positions the motor housing by a pair of clamping positioning modules inside the C-shaped surrounding module, preventing the motor housing axis from deviating from the equipment rotation axis, resulting in more uniform welding, better welding effect, and more convenient use;

[0020] 2. This invention is equipped with a sliding base and a C-shaped surround module. By driving the welding module to rotate around the motor housing, welding is performed on it. It can also slide directly through the sliding base and be placed on the outside of the mining motor housing. There is no need to carry or move the motor housing, avoiding the risk of slipping and causing injury when the motor housing is being moved. It is more convenient and safer to use, saves more effort, and has higher welding efficiency.

[0021] 3. The present invention is equipped with a sliding base, which can be slid directly, making it convenient to move and arrange. It is more applicable and easier and faster to use, reducing welding operation time and improving welding efficiency. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the structure of this invention patent.

[0023] Figure 2 This is a schematic diagram showing the unfolded structure of this invention patent.

[0024] Figure 3 This is a schematic diagram of the structure of the C-type surround module of this invention patent.

[0025] Figure 4 This is a schematic diagram showing the unfolded structure of the C-type surround module of this invention.

[0026] Figure 5 This is a schematic diagram of the clamping and positioning module of this invention.

[0027] Figure 6 This is a cross-sectional schematic diagram of the clamping and positioning module of this invention.

[0028] Figure 7 This is a schematic diagram of the rotary drive module of this invention.

[0029] Figure 8 This is a cross-sectional schematic diagram of the rotary drive module of this invention.

[0030] Figure 9 This is a schematic diagram of the lifting module of this invention.

[0031] Figure 10 This is a cross-sectional schematic diagram of the lifting module of this invention patent.

[0032] Figure 11 This is a schematic diagram of the structure of the axis positioning module of this invention.

[0033] Figure 12 This is a cross-sectional schematic diagram of the axis positioning module of this invention.

[0034] Figure 13 This is a schematic diagram showing the unfolded structure of the axis positioning module of this invention.

[0035] Figure 14 This is a cross-sectional schematic diagram of the welding module of this invention.

[0036] Figure 15 This is a schematic diagram showing the unfolded structure of the welding module of this invention patent.

[0037] As shown in the figure: 1. Sliding base; 11. C-shaped base; 12. Support leg; 13. C-shaped retaining ring; 14. Protective sleeve; 141. Transmission notch; 15. Pulley; 2. C-shaped surround module; 21. C-shaped collar; 22. Incomplete toothed ring; 23. Transmission gear; 24. Positioning wheel; 3. Clamping positioning module; 31. Transverse beam; 311. Mounting box; 32. Clamping screw; 33. Clamping turntable; 34. Clamping slide; 3 5. Parallel flipping structure; 351. Upper support rod; 352. Lower support rod; 353. L-shaped rod; 36. Clamping plate; 361. Upper hinge plate; 362. Lower hinge plate; 4. Rotary drive module; 41. Rotary motor; 411. Drive bevel gear; 42. Gearbox; 43. Transmission module; 431. Transmission rod; 432. Mounting sleeve; 433. Mounting arm; 44. Transmission bevel gear; 5. Lifting module; 51. Extension plate; 5 2. Lifting and adjusting structure; 521. Lifting motor; 522. Lifting bracket; 523. Lifting screw; 524. Lifting block; 525. Motor box; 53. Power supply; 6. Shaft positioning module; 61. Support module; 611. L-shaped support rod; 612. Gas spring; 613. Vertical sleeve; 614. Upright pole; 615. Connecting plate; 616. Connecting rod; 62. Rotary shaft chuck; 621. Annular chuck disc; 622. Chuck; 6 23. Scroll plate; 624. Adjusting ring; 7. End cap positioning module; 71. Positioning plate; 72. Positioning sleeve; 73. Rotating cap; 74. Positioning screw; 75. Positioning end cap; 8. Welding module; 81. Welding torch; 82. Adjusting bracket; 83. Gas tank; 84. Gas pipe; 85. Angle adjustment structure; 851. Welding torch mounting base; 852. Adjusting knob; 853. Main gear plate; 854. Tension spring; 855. Secondary gear plate. Detailed Implementation

[0038] The present invention will now be described in further detail with reference to the accompanying drawings.

[0039] Combined with appendix Figure 1 Appendix Figure 2 As shown, a welding device for the housing of a mining motor includes a C-shaped sliding base 1. The front of the sliding base 1 is open, and a rotary drive module 4 is provided on the rear side. A C-shaped surrounding module 2, which is driven and controlled by the rotary drive module 4, is rotatably provided on the top. A pair of clamping and positioning modules 3 are provided inside the C-shaped surrounding module 2. A lifting module 5 is provided behind the rotary drive module 4. A shaft positioning module 6 and a welding module 8 are provided on the lifting module 5. The shaft positioning module 6 is arranged directly above the C-shaped surrounding module 2, and an end cap positioning module 7 is provided at the bottom of the shaft positioning module 6.

[0040] In the above description, the sliding base 1 is pushed so that the housing of the mining motor enters the sliding base 1 and the C-shaped surrounding module 2 through the front opening. The end cap to be welded is placed on top of the motor housing through the motor shaft and clamped on the motor shaft by the shaft positioning module 6 to determine the motor shaft center and make it coincide with the shaft center of the sliding base 1 and the C-shaped surrounding module 2. The clamping positioning module 3 is adjusted so that the C-shaped surrounding module 2 is clamped and fixed on the motor housing. The end cap is pressed tightly against the top of the motor housing by the end cap positioning module 7, and the position and angle of the welding module 8 are adjusted. The welding module 8 is started to weld, and then the rotation drive module 4 is started so that the sliding base 1 and the C-shaped surrounding module 2 rotate relatively slowly relative to each other. Because the motor housing is heavy and is placed directly on the ground, the sliding base 1 drives the lifting module 5 on the rear to rotate around the motor housing. The welding module 8, which rotates with the lifting module 5, welds the seam at the connection between the motor housing and the end cap. After one revolution around the motor housing, the welding operation of the motor housing is completed.

[0041] Combined with appendix Figure 3 Appendix Figure 4 As shown, the sliding base 1 includes a horizontally arranged C-shaped base 11 with an opening on the front and a C-shaped retaining ring 13 on the top. Five radially arranged support legs 12 are evenly distributed on the outer side (symmetrically arranged at five corners of a regular hexagon). The four support legs 12 on the sides provide support and maintain balance, while the rear support legs 12 primarily provide additional support for the lifting module 5, the axis positioning module 6, and the welding module 8 located on the rear side, preventing tilting due to excessive weight on the rear. Furthermore, the C-shaped retaining ring 13 is an incompletely circular structure with an open front. The C-shaped retaining ring 13 is arranged in a regular hexagonal pattern. The angle between the two front support legs 12 can reach 120°, which can increase the size of the open gap on the front side of the C-shaped retaining ring 13, allowing a larger motor housing to enter the C-shaped retaining ring 13 and improving its applicability. Each support leg 12 is arranged horizontally and has a pulley 15 at the bottom. The C-shaped retaining ring 13 is an incomplete circular ring structure (the gap size is about 90°) and has a matching C-shaped protective sleeve 14 at the top. The protective sleeve 14 has a pair of transmission notches 141 mirrored on the rear side, and the two transmission notches 141 are respectively arranged corresponding to the support legs 12.

[0042] Combined with appendix Figure 3 Appendix Figure 4As shown, the C-shaped surround module 2 includes a C-shaped collar 21 adapted to the C-shaped retaining ring 13, which is movably sleeved on the C-shaped retaining ring 13. The top passes through the protective housing 14 and is movably sleeved inside the protective housing 14. The bottom is provided with a matching C-shaped incomplete toothed ring 22 inside the protective housing 14. The tops of the four support legs 12 on both sides are respectively provided with positioning wheels 24, and the bottoms of the two positioning wheels 24 located on the rear side are respectively provided with transmission gears 23. The positioning wheels 24 abut against the outer wall of the C-shaped collar 21 to prevent the C-shaped collar 21 from disengaging from the C-shaped retaining ring 13. The two transmission gears 23 respectively pass through the transmission notch 141 and mesh with the incomplete toothed ring 22.

[0043] As described above, after being driven by the rotary drive module 4, the transmission gears 23 on both sides rotate synchronously in the same direction, causing the incomplete gear ring 22 to rotate (the incomplete gear ring 22 meshes with at least one transmission gear 23 during its rotation). Through the cooperation of the two incomplete circular ring structures, the C-shaped retaining ring 13 and the C-shaped collar 21, the motor housing passes through the opening of the C-shaped retaining ring 13 and enters the C-shaped retaining ring 13. Then, the C-shaped collar 21 rotates stably around the motor housing.

[0044] Combined with appendix Figure 7 Appendix Figure 8 As shown, the rotary drive module 4 includes a gear box 42 mounted on the rear support leg 12. A rotary motor 41 is mounted on the top of the gear box 42, and a drive bevel gear 411 connected to the drive shaft of the rotary motor 41 is mounted on the inner side. Transmission modules 43 are mounted on the left and right sides respectively. The transmission gears 23 on both sides are rotatably connected to the drive bevel gears 411 through the transmission modules 43 and rotate synchronously in the same direction. The rotary motor 41 is a variable frequency reduction motor, and a cover is mounted on the outside of the rotary motor 41 to prevent welding slag from falling on it.

[0045] Combined with appendix Figure 8 As shown, the transmission module 43 includes a transmission rod 431 and a mounting sleeve 432. The mounting sleeve 432 is arranged laterally and is connected and fixed to the protective housing 14 through the mounting support arm 433 on the outer side. The two ends of the transmission rod 431 are respectively provided with bevel gear structures. A pair of mounting sleeves 432 are arranged in a mirror image on the left and right sides, and a pair of transmission rods 431 are respectively provided in each mounting sleeve 432. After the two transmission rods 431 are connected by bevel gear meshing, one transmission rod 431 meshes with the drive bevel gear 411 in the gear box 42, and the other meshes with the transmission bevel gear 44 provided at the bottom of the transmission gear 23 on the same side.

[0046] As described above, after the rotary motor 41 is turned on, the drive bevel gear 411 drives the transmission rod 431 of the two transmission modules 43 to rotate, thereby driving the two transmission gears 23 to rotate synchronously in the same direction (the rotation direction of the two transmission gears 23 is opposite to that of the drive bevel gear 411), so as to achieve the effect of driving the C-shaped collar 21 to rotate.

[0047] Combined with appendix Figure 5 Appendix Figure 6 As shown, the clamping and positioning module 3 includes a clamping plate 36 and a transverse beam 31 fixed inside the C-shaped collar 21. A mounting box 311 is fixedly installed in the middle of the transverse beam 31, and a clamping turntable 33 is installed on the top of the mounting box 311. Clamping screws 32 are rotatably installed inside the transverse beams 31 on both sides, and the clamping turntable 33 meshes with the clamping screws 32 on both sides via bevel gears. A clamping slide block 34 is slidably installed inside the transverse beam 31, and the clamping slide block 34 is threadedly engaged with the corresponding clamping screw 32 and connected to the clamping plate 36 via a parallel flipping structure 35. The parallel flipping structure 35 includes an upper support rod 351, a lower support rod 352, and an L-shaped rod 353. The clamping plate 36 and the transverse beam 31... The two clamping positioning modules 3 are arranged in parallel, with their clamping plates 36 arranged on the inner sides of the two transverse beams 31. A lower hinge plate 362 is provided at the bottom of its side wall, and a pair of upper hinge plates 361 are mirrored on both sides of the lower hinge plate 362 at the top. The bottom of the vertical sections of the two L-shaped rods 353 are fixed on the corresponding clamping slides 34, and the horizontal sections are arranged parallel to the transverse beams 31. One end of a pair of lower support rods 352 is hinged to the corresponding clamping slides 34, and the other end is simultaneously hinged to the lower hinge plate 362. One end of a pair of upper support rods 351 is hinged to the other end of the corresponding L-shaped rods 353, and the other end is hinged to the corresponding upper hinge plate 361, and then arranged parallel to the lower support rods 352.

[0048] In the above description, after pushing the sliding base 1 to place the motor housing inside the C-shaped surround module 2, the motor shaft is positioned by the axis positioning module 6, thereby determining the position of the motor housing inside the C-shaped surround module 2. The two clamping turntables 33 on both sides are rotated respectively, so that the two pairs of clamping slides 34 slide relative to each other and move closer. By flipping the upper support rod 351 and the lower support rod 352, the corresponding clamping plate 36 is pushed to move until the two clamping plates 36 respectively abut against the motor housing, and the motor housing is clamped and fixed inside the C-shaped surround module 2.

[0049] Combined with appendix Figure 9 Appendix Figure 10As shown, the lifting module 5 includes an extension plate 51 located on the rear side of the gear box 42. The extension plate 51 is horizontally arranged and has a pulley 15 at the bottom. A lifting adjustment structure 52 is located at the top. The lifting adjustment structure 52 includes a motor box 525 located on the extension plate 51. The motor box 525 contains a lifting motor 521 and a mobile power supply 53. A charging interface and a protective flip cover are located on the rear side. A lifting bracket 522 is vertically located on the top. A lifting screw 523 is rotatably arranged inside the lifting bracket 522. One end of the lifting screw 523 is connected to the drive shaft of the lifting motor 521. A lifting block 524 is slidably arranged inside the lifting bracket 522 and is threadedly engaged with the lifting screw 523. A shaft positioning module 6 and a welding module 8 are respectively arranged on the lifting block 524.

[0050] As described above, the lifting motor 521 and the rotary motor 41 are powered by the mobile power supply 53 to prevent the wires from getting tangled during rotation. When the lifting motor 521 is started, the lifting screw 523 rotates, and the lifting block 524 drives the shaft positioning module 6 and the welding module 8 to slide up and down to adjust the height.

[0051] Combined with appendix Figure 10 Appendix Figure 11 As shown, the axis positioning module 6 includes a support module 61 and a rotating shaft claw 62. The support module 61 includes an L-shaped support rod 611 fixed to the front side of the lifting block 524. The bottom of the vertical section of the L-shaped support rod 611 is connected and fixed to the lifting block 524. A gas spring 612 is vertically installed at the rear end of the horizontal section. A vertical sleeve 613 is rotatably installed at the front end. A vertical rod 614 is slidably installed inside the vertical sleeve 613. Three connecting rods 616 are evenly arranged around the bottom of the vertical rod 614. A connecting plate 615 is installed at the top. The other end of the connecting plate 615 is connected to the telescopic end of the gas spring 612.

[0052] Combined with appendix Figure 12 Appendix Figure 13 As shown, the rotating shaft chuck 62 includes an annular chuck disk 621 fixed to the bottom of the connecting rod 616. A spiral disk 623 is rotatably disposed on the annular chuck disk 621. The top of the spiral disk 621 is connected to the bottom of each connecting rod 616, and three chucks 622 are slidably disposed in the radial direction. The bottom of the chucks 622 respectively engages with the spiral disk 623. An adjusting rotating ring 624 is sleeved and fixed on the spiral disk 623.

[0053] In the above description, after adjusting the shaft positioning module 6 and welding module 8 to a suitable height using the lifting module 5, the shaft chuck 62 is pulled down, allowing the motor shaft to pass through the annular chuck disc 621. The upright 614 slides downward within the vertical sleeve 613, causing the gas spring 612 to extend and retract. The adjusting ring 624 is rotated, causing the scroll plate 623 to rotate, and each chuck 622 moves towards the shaft center until the motor shaft is clamped, aligning the motor shaft center with the rotating shaft center of the sliding base 1. After use, the adjusting ring 624 is rotated in the opposite direction to release the shaft chuck 62 from the motor shaft. The shaft chuck 62 is pushed upward, and the gas spring 612 extends to support the connecting plate 615, achieving a labor-saving effect.

[0054] Combined with appendix Figure 12 Appendix Figure 13 As shown, the end cap positioning module 7 includes a positioning disk 71 that is sleeved and fixed to the bottom of the annular claw disk 621. Positioning sleeves 72 and rotating caps 73 are rotatably arranged on both sides of the positioning disk 71. A positioning screw 74 is slidably arranged inside the positioning sleeve 72 through a spline. The rotating cap 73 is arranged corresponding to the positioning sleeve 72 and is threaded onto the positioning screw 74. A positioning end cap 75 is provided at the bottom of the positioning screw 74.

[0055] As described above, after the motor shaft is clamped and positioned by the shaft positioning module 6, the two rotating caps 73 are rotated, causing the two positioning screws 74 to move down respectively, and the positioning end cap 75 abuts against the end cover (the pressure between the positioning end cap 75 and the end cover is provided by the shaft claw 62 clamped on the shaft), so that the end cover is tightly installed on the motor housing, reducing the size of the gap at the connection, improving the welding effect and accuracy. After the sliding base 1 rotates around the motor housing, it rotates between the vertical sleeve 613 and the L-shaped support rod 611, and the end cover positioning module 7 and the end cover remain relatively stationary, preventing the end cover from moving.

[0056] Combined with appendix Figure 10 Appendix Figure 11 Appendix Figure 14 Appendix Figure 15As shown, the welding module 8 includes an adjustment bracket 82, which is a mature existing technology and is mounted on the lifting block 524. A welding torch 81 is mounted on its end via an angle adjustment structure 85. A gas pipe 84 is mounted on the welding torch 81, and the other end of the gas pipe 84 is connected to a gas tank 83 placed on the motor housing 525. The angle adjustment structure 85 includes a welding torch mounting base 851. The welding torch 81 is fixedly mounted on one side of the welding torch mounting base 851, and the other side is rotatably mounted on the end of the adjustment bracket 82. An adjustment knob 852 is located on the other side of the end of the adjustment bracket 82, and the rotating shaft is slidably mounted in the rotating shaft of the welding torch mounting base 851. A tension spring 854 is provided between the knob and the welding torch mounting base 851. A main gear 853 is provided inside the adjustment knob 852, and a secondary gear 855 that meshes with the main gear 853 is correspondingly provided at the end of the adjustment bracket 82.

[0057] As described above, the welding torch 81 adjusts its position and height via the adjusting bracket 82, and adjusts its arrangement angle in the vertical direction via the angle adjusting structure 85. Pulling the adjusting knob 852 separates the main gear plate 853 from the auxiliary gear plate 855. Rotating the adjusting knob 852 causes the welding torch 81 to rotate along with the welding torch mounting base 851. After releasing the knob, the tension spring 854 engages the main gear plate 853 with the auxiliary gear plate 855, preventing the adjusting knob 852 from rotating and fixing the angle of the welding torch 81. Gas is supplied to the welding torch 81 through the gas pipe 84. After starting the welding torch 81, it continuously sprays flame for heating and welding.

[0058] In summary, the welding of the motor housing for mining applications involves placing the end cap to be welded through the motor shaft on top of the motor housing. The lifting module 5 is used to adjust the shaft positioning module 6 and welding module 8 to a suitable height. Then, the sliding base 1 is pushed, allowing the motor housing to enter the C-shaped surrounding module 2 through the front opening of the C-shaped base 11. Pulling the upper shaft positioning module 6 causes the motor shaft to be clamped and positioned by the shaft jaws 62, causing the sliding base 1 to move accordingly, with its centerline coinciding with the motor shaft's axis. Finally, the clamping and positioning module... Group 3 clamps the motor housing, fixing the C-shaped surround module 2 to the outside of the motor housing. Adjust the end cover positioning module 7 to ensure the end cover is tightly installed on the motor housing, preventing it from moving. Adjust the position and angle of the welding gun 81 by adjusting the bracket 82, so that the nozzle of the welding gun 81 is directly facing the gap between the motor housing and the end cover. Finally, start the rotary motor 41 and the welding gun 81. Through gear transmission, the sliding base 1 slowly rotates around the motor housing, thereby driving the welding module 8 on the rear side to make a circular motion, automatically welding the motor housing.

[0059] In this invention, all exposed components are made of metal or other high-temperature resistant and fire-resistant materials to prevent welding slag from igniting.

[0060] In specific implementations of this invention, the contents not described in detail in this specification are existing technologies known to those skilled in the art.

Claims

1. A welding device for the housing of a mining motor, characterized in that, include: The sliding base (1) includes a horizontally arranged C-shaped base (11), with an opening on the front side, a rotary drive module (4) on the rear side, a C-shaped retaining ring (13) on the top, and support legs (12) evenly arranged on the outer side. The bottom of the support legs (12) is provided with pulleys (15). A lifting module (5) is provided on the rear side of the rotary drive module (4), and a lifting block (524) is slidably arranged on the lifting module (5). The C-shaped surround module (2) is rotatably mounted on the sliding base (1), and a pair of clamping and positioning modules (3) are provided on the inner side. A shaft positioning module (6) and a welding module (8) are respectively set on the lifting block (524). The shaft positioning module (6) includes a rotating shaft claw (62) set directly above the C-shaped retaining ring (13). The end cap positioning module (7) is set at the bottom of the rotating shaft claw (62) to position the end cap; The C-shaped surround module (2) includes a C-shaped collar (21) adapted to the C-shaped retaining ring (13), which is movably sleeved on the C-shaped retaining ring (13), and a matching incomplete toothed ring (22) is provided at the bottom. The support leg (12) is arranged radially along the C-shaped base (11), and a positioning wheel (24) is rotatably provided at the top. The positioning wheel (24) abuts against the outer wall of the C-shaped collar (21), and two of the positioning wheels (24) are rotatably provided with transmission gears (23) that mesh with the incomplete toothed ring (22) at the bottom. The rotary drive module (4) includes a gear box (42) mounted on the rear support leg (12). A rotary motor (41) is mounted on the top of the gear box (42), and a drive bevel gear (411) connected to the drive shaft of the rotary motor (41) is mounted on the inner side. Transmission modules (43) are mounted on the left and right sides respectively, and the transmission gears (23) on both sides are rotatably connected to the drive bevel gear (411) through the transmission module (43) to rotate synchronously in the same direction. The axial positioning module (6) includes a support module (61) set on the lifting module (5). The support module (61) includes an L-shaped support rod (611) fixed on the front side of the lifting block (524). A gas spring (612) is vertically set at one end of the horizontal section of the L-shaped support rod (611), and a vertical sleeve (613) is rotatably set at the other end. A vertical rod (614) is slidably set up and down inside the vertical sleeve (613). A connecting plate (615) is set at the top of the vertical rod (614), and the other end of the connecting plate (615) is connected to the telescopic end of the gas spring (612). A rotating shaft claw (62) is set at the bottom of the vertical rod (614). The rotating shaft chuck (62) includes an annular chuck disk (621), and the end cap positioning module (7) includes a positioning disk (71) sleeved and fixed to the bottom of the annular chuck disk (621). Positioning sleeves (72) and rotating caps (73) are rotatably arranged on both sides of the positioning disk (71). A positioning screw (74) is slidably arranged inside the positioning sleeve (72) through a spline. The rotating cap (73) is arranged corresponding to the positioning sleeve (72) and threaded onto the positioning screw (74). A positioning end cap (75) is provided at the bottom of the positioning screw (74).

2. The welding device for the housing of a mining motor according to claim 1, characterized in that: A matching protective sleeve (14) is fixedly provided on the C-type retaining ring (13), an incomplete toothed ring (22) is arranged inside the protective sleeve (14), and the protective sleeve (14) is movably sleeved on the C-type retaining ring (21), and a transmission notch (141) is provided corresponding to the transmission gear (23).

3. The welding device for the housing of a mining motor according to claim 1, characterized in that: The clamping positioning module (3) includes a clamping plate (36) and a transverse beam (31) fixed inside the C-shaped collar (21). A mounting box (311) is fixedly installed in the middle of the transverse beam (31). A clamping turntable (33) is installed on the top of the mounting box (311). Clamping screws (32) are rotatably installed inside the transverse beams (31) on both sides. The clamping turntable (33) and the clamping screws (32) on both sides are meshed by bevel gears. A clamping slide (34) is slidably installed inside the transverse beam (31). The clamping slide (34) is threadedly engaged with the corresponding clamping screw (32) and connected to the clamping plate (36) through a parallel flipping structure (35).

4. The welding device for a mining motor housing according to claim 1, characterized in that: The annular claw disk (621) is rotatably provided with a spiral disk (623), the top of which is connected to the bottom of the upright (614) via a connecting rod (616) arranged along the circumference, and a pawl (622) is slidably provided along the radial direction. The bottom of the pawl (622) engages with the spiral disk (623), and an adjusting ring (624) is sleeved and fixed on the spiral disk (623).

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