Adjustable support for gear tooth repair

CN224642737UActive Publication Date: 2026-08-18HENAN JIAKANG HEAVY IND MASCH MFG CO LTD
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Patent Information

Application Number
CN202522035743.9
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-09-22
Publication Date
2026-08-18
Estimated Expiration
2035-09-22

AI Technical Summary

Technical Problem

[0004]本实用新型的目的在于提供一种齿轮断齿修复用可调节支架,以解决上述背景技术中提出的现有齿轮焊接过程中缺乏专用定位装置,需依赖人工扶持定位的问题

Benefits of technology

[0007]采用上述进一步方案的有益效果是,调节螺杆转动驱动第二固定架沿调节架升降,调整与第一固定架的间距,适配不同尺寸齿轮的固定需求,操作精准且固定稳固。

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Abstract

The utility model discloses an adjustable support for gear broken tooth repair belongs to adjusting support technical field. This kind of adjustable support for gear broken tooth repair, including adjusting mechanism and fixed establishment, adjusting mechanism includes base, and the upper end one side fixed mounting of base has support frame, and the inside sliding installation of support frame has lifting rod, and the upper end one side fixed mounting of lifting rod has truss, and one end fixed mounting of truss has transmission case, and fixed establishment includes connecting frame, and one end of connecting frame is rotatably connected with transmission case, and the bottom fixed mounting of one side of connecting frame has first fixed frame, and the upper end fixed mounting of one side of connecting frame has adjusting frame, and the bottom sliding insertion of adjusting frame has second fixed frame, and the opposite face of first fixed frame and second fixed frame all are seted up T type slot, and the inside sliding insertion of T type slot all has U type clamping block, and the inside of U type clamping block all is equipped with rubber pad, the utility model discloses can effectively improve the practicality of adjustable support for gear broken tooth repair, has higher practical value.
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Description

Technical Field

[0001] This utility model relates to the field of adjustable bracket technology, specifically an adjustable bracket for repairing broken gear teeth. Background Technology

[0002] In the field of mechanical manufacturing, gear tooth breakage repair often employs the following methods: Tooth insert method: For gears with low load and low speed, when individual teeth break, the tooth insert method can be used to repair them. A dovetail groove is machined at the root of the bad tooth, and the tooth blank is inserted into it with a certain tightness. The tooth blank is then fastened by welding or adding stabilizing pins, and then a new tooth shape is milled out. Partial overlay welding of gear teeth: When individual teeth of a gear are broken or severely damaged, local overlay welding can be performed using the electric arc welding method. To prevent the gear from overheating and avoid heat-affected zones, the gear can be immersed in water, with only the teeth to be welded exposed above the water surface, and the overlay welding can be performed underwater. If the wear on the end face of the gear teeth exceeds the limit, automatic overlay welding with powder welding wire under the flux layer can be used.

[0003] Based on the above, the inventors have discovered the following problem: the gear needs to be clamped and fixed during repair, but the angle of a general clamping and fixing device is not adjustable. Therefore, in view of this, the inventors have studied and improved the existing structure and its shortcomings, and provided an adjustable bracket for repairing broken gear teeth, in order to achieve a more practical purpose. Utility Model Content

[0004] The purpose of this invention is to provide an adjustable bracket for repairing broken gear teeth, so as to solve the problem mentioned in the background art that the existing gear welding process lacks a dedicated positioning device and requires manual support for positioning.

[0005] In view of the above problems, the technical solution proposed by this utility model is as follows: An adjustable bracket for repairing broken gear teeth includes an adjustment mechanism and a fixing mechanism. The adjustment mechanism includes a base, a support frame fixedly installed on one side of the upper end of the base, a lifting rod slidably installed inside the support frame, a truss fixedly installed on one side of the upper end of the lifting rod, and a transmission box fixedly installed at one end of the truss. The fixing mechanism includes a connecting frame, one end of the connecting frame being rotatably connected to the transmission box, a first fixing frame fixedly installed at the bottom of one side of the connecting frame, an adjustment frame fixedly installed at the upper end of one side of the connecting frame, and a second fixing frame slidably inserted at the bottom of the adjustment frame. T-shaped slots are provided on the facing surfaces of the first and second fixing frames, and U-shaped clamping blocks are slidably inserted inside the T-shaped slots. Rubber pads are provided on the inner side of the U-shaped clamping blocks.

[0006] Furthermore, an adjusting screw is threadedly connected to the center of the adjusting frame, and the bottom end of the adjusting screw is rotatably connected to the top end of the second fixed frame.

[0007] The beneficial effect of adopting the above-mentioned further solution is that the rotation of the adjusting screw drives the second fixed frame to rise and fall along the adjusting frame, adjusts the distance with the first fixed frame, adapts to the fixing requirements of gears of different sizes, and the operation is precise and the fixation is stable.

[0008] Furthermore, a stop block is slidably installed on one side of each T-shaped slot, and one end of the stop block abuts against the bottom side of the U-shaped clamping block.

[0009] The beneficial effect of adopting the above-mentioned further solution is that the abutment slides in the T-shaped slot and abuts against the U-shaped clamping block, which enhances the fixing effect of the U-shaped clamping block, prevents the gear from loosening and shifting during welding, and ensures welding stability.

[0010] Furthermore, locking bolts are movably inserted on one side of the opposite side of the first and second fixing frames, and one end of the locking bolt is threadedly connected to the abutment block.

[0011] The beneficial effect of adopting the above-mentioned further solution is that the locking bolt fixes the position of the stop block in the T-slot, so that it presses against the U-shaped clamping block, which facilitates quick fixing or disassembly of the U-shaped clamping block.

[0012] Furthermore, a worm gear is rotatably connected inside the transmission box, and the central axis of the worm gear is connected to one end of the connecting frame.

[0013] The beneficial effect of adopting the above-mentioned further solution is that the worm gear is linked with the connecting frame, and the angle of the connecting frame is adjusted by the worm drive. The worm gear transmission has self-locking property, which ensures the stability of the angle after adjustment and avoids angle deviation during welding.

[0014] Furthermore, a worm gear is rotatably connected to the inner side of the transmission box, and the worm gear meshes with a worm wheel. One end of the worm gear extends through the transmission box to the outside and is fitted with a knob.

[0015] The beneficial effect of adopting the above-mentioned further solution is that the knob turns the worm gear, which meshes with the worm wheel to drive the connecting frame to rotate, thereby adjusting the gear welding angle. This makes the operation easier and the angle adjustment range is wide, thus improving the angle control accuracy.

[0016] Furthermore, a lead screw is rotatably connected to the bottom of the support frame, and a sleeve is inserted at the center of the bottom end of the lifting rod, with the lead screw and sleeve threadedly connected.

[0017] The beneficial effect of adopting the above-mentioned further solution is that the lead screw and sleeve are threaded together, and rotating the lead screw can drive the lifting rod to rise and fall smoothly along the support frame, adjust the gear welding height, and adapt to the welding requirements of different working conditions.

[0018] Furthermore, a first bevel gear is fitted at the bottom end of the lead screw, and a second bevel gear is rotatably connected inside the support frame to one side of the first bevel gear. The first bevel gear and the second bevel gear mesh with each other, and one end of the second bevel gear extends through the support frame to the outside and is fitted with a rotating wheel.

[0019] The beneficial effect of adopting the above-mentioned further solution is that the second bevel gear meshes with the first bevel gear, converting the horizontal rotation of the wheel into the vertical rotation of the lead screw, which facilitates the adjustment of the lifting height from the side, saves operating space, and improves the efficiency of height adjustment.

[0020] Compared with the prior art, the beneficial effects of this utility model are as follows: The adjustable bracket for repairing broken gear teeth has a base that cooperates with the support frame for adjusting the mechanism, and the lifting rod drives the truss and transmission box to rise and fall, adapting to different welding heights; the connecting frame of the fixing mechanism adjusts the angle through the transmission box, and the U-shaped clamping blocks of the first fixing frame and the second fixing frame fix the gear, with rubber pads to prevent clamping damage, and the T-shaped slot slidingly connected to the U-shaped clamping block, which allows the user to select a U-shaped clamping block that matches the gear size to fix the gear according to the gear specifications, improving the applicability of the bracket, and realizing flexible adjustment of the gear welding angle and height as a whole. Attached Figure Description

[0021] Figure 1 This is a three-dimensional structural diagram of the adjustable bracket for repairing broken gear teeth disclosed in an embodiment of the present invention. Figure 1 ; Figure 2 This is a three-dimensional structural diagram of the adjustable bracket for repairing broken gear teeth disclosed in an embodiment of the present invention. Figure 2 ; Figure 3 This is a three-dimensional structural diagram of the fixing mechanism of the adjustable bracket for repairing broken gear teeth disclosed in an embodiment of the present utility model; Figure 4 This is a front cross-sectional view of the transmission box of the adjustable bracket for repairing broken gear teeth disclosed in an embodiment of the present utility model; Figure 5 This is a side cross-sectional view of the support frame and lifting rod of the adjustable bracket for repairing broken gear teeth disclosed in an embodiment of this utility model.

[0022] In the diagram: 1. Adjustment mechanism; 101. Base; 102. Support frame; 103. Lifting rod; 104. Truss; 105. Transmission box; 106. Worm gear; 107. Worm; 108. Knob; 109. Lead screw; 110. Sleeve; 111. Second bevel gear; 112. First bevel gear; 2. Fixing mechanism; 201. Connecting frame; 202. First fixing frame; 203. Adjustment frame; 204. Second fixing frame; 205. U-shaped clamping block; 206. Adjusting screw; 207. T-slot; 208. Abutment block; 209. Locking bolt. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Please see Figure 1 - Figure 5 This utility model provides a technical solution: an adjustable bracket for repairing broken gear teeth, comprising an adjustment mechanism 1 and a fixing mechanism 2. The adjustment mechanism 1 includes a base 101, a support frame 102 fixedly installed on one side of the upper end of the base 101, a lifting rod 103 slidably installed inside the support frame 102, a truss 104 fixedly installed on one side of the upper end of the lifting rod 103, and a transmission box 105 fixedly installed at one end of the truss 104. The fixing mechanism 2 includes a connecting frame 201, one end of the connecting frame 201 being rotatably connected to the transmission box 105, a first fixing frame 202 fixedly installed on the bottom side of one side of the connecting frame 201, an adjustment frame 203 fixedly installed on the upper side of one side of the connecting frame 201, and a second fixing frame 204 slidably inserted into the bottom end of the adjustment frame 203. The facing surfaces of the first fixing frame 202 and the second fixing frame 204 are both open. The system includes a T-slot 207, with a U-shaped clamping block 205 slidably inserted inside each T-slot 207. The inner side of each U-shaped clamping block 205 is equipped with a rubber pad. The base 101 of the adjusting mechanism 1 cooperates with the support frame 102. The lifting rod 103 drives the truss 104 and the transmission box 105 to rise and fall, adapting to different welding heights. The connecting frame 201 of the fixing mechanism 2 adjusts its angle via the transmission box 105. The first fixing frame 202 and the U-shaped clamping blocks 205 of the second fixing frame 204 fix the gears. Rubber pads prevent clamping damage. The T-slot 207 and the U-shaped clamping blocks 205 are slidably connected, allowing users to select a U-shaped clamping block 205 that matches the gear size to fix the gear, improving the applicability of the support. Overall, the system achieves flexible adjustment of the gear welding angle and height, improving welding accuracy and convenience.

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] Please see Figure 1 - Figure 5 An adjusting screw 206 is threadedly connected to the center of the adjusting frame 203. The bottom end of the adjusting screw 206 is rotatably connected to the top end of the second fixed frame 204. A stop block 208 is slidably installed on one side of the T-slot 207, with one end of the stop block 208 abutting against the bottom side of the U-shaped clamping block 205. Locking bolts 209 are movably inserted into the opposite sides of the first fixed frame 202 and the second fixed frame 204, with one end of the locking bolt 209 threadedly connected to the stop block 208. A worm gear 106 is rotatably connected inside the transmission box 105, with its central shaft connected to one end of the connecting frame 201. A worm 107 is rotatably connected inside the transmission box 105, meshing with the worm gear 106. One end of the worm 107 extends through the transmission box 105 to the outside and is fitted with a knob 108. The rotating adjusting screw 206 drives the second fixed frame 204 to rise and fall along the adjusting frame 203, adjusting the position of the adjustment screw 206. The spacing of the first fixing bracket 202 is adapted to the fixing requirements of gears of different sizes, ensuring precise operation and stable fixation. The abutment block 208 slides within the T-slot 207 and presses against the U-shaped clamping block 205, enhancing the fixing effect of the U-shaped clamping block 205, preventing gear loosening and displacement during welding, and ensuring welding stability. The locking bolt 209 fixes the position of the abutment block 208 within the T-slot 207, pressing it against the U-shaped clamping block 205, facilitating quick fixing or disassembly of the U-shaped clamping block 205. The worm gear 106 is linked with the connecting bracket 201, and the angle of the connecting bracket 201 is adjusted by driving the worm 107. The worm gear 106 and worm 107 transmission has self-locking properties, ensuring the stability of the angle after adjustment and preventing angle deviation during welding. The knob 108 rotates the worm 107, which meshes with the worm gear 106 to drive the connecting bracket 201 to rotate, adjusting the gear welding angle. The operation is labor-saving and the angle adjustment range is wide, improving the angle control accuracy.

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0028] Please see Figure 1- Figure 5 A lead screw 109 is rotatably connected to the bottom of the support frame 102. A sleeve 110 is inserted at the center of the bottom of the lifting rod 103. The lead screw 109 is threadedly connected to the sleeve 110. A first bevel gear 112 is fitted at the bottom of the lead screw 109. A second bevel gear 111 is rotatably connected to one side of the first bevel gear 112 inside the support frame 102. The first bevel gear 112 and the second bevel gear 111 mesh with each other. One end of the second bevel gear 111 extends through the support frame 102 to the outside and is fitted with a rotating wheel. The lead screw 109 is threadedly engaged with the sleeve 110. Rotating the lead screw 109 can drive the lifting rod 103 to rise and fall smoothly along the support frame 102, adjusting the gear welding height to adapt to welding requirements under different working conditions. The second bevel gear 111 meshes with the first bevel gear 112, converting the horizontal rotation of the rotating wheel into the vertical rotation of the lead screw 109, which facilitates side operation to adjust the lifting height, saves operating space, and improves the efficiency of height adjustment.

[0029] Specifically, the working principle of this adjustable bracket for repairing broken gear teeth is as follows: During use, a suitable U-shaped clamping block 205 is selected according to the gear specifications and inserted into the T-shaped slot 207. A stop block 208 is then inserted to abut against the U-shaped clamping block 205. Subsequently, the locking bolt 209 is tightened to fix the stop block 208. The adjusting screw 206 is rotated to adjust the distance between the second fixing frame 204 and the first fixing frame 202 to clamp the gear. The rotating wheel is driven by the second bevel gear 111 and the first bevel gear 112, causing the lead screw 109 to drive the lifting rod 103 to rise and fall through the sleeve 110, adjusting the welding height. The knob 108 is rotated to drive the worm gear 107 to mesh with the worm wheel 106, causing the connecting frame 201 to rotate and adjust the welding angle. Overall, the adjustment and stable fixing of the gear welding repair angle and height are achieved.

[0030] It should be noted that all standard parts used in this application can be purchased from the market, and can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art. The control method is automatic control through a controller. The control circuit of the controller can be implemented by simple programming by those skilled in the art and is common knowledge in the field. Furthermore, since this application is mainly used to protect mechanical devices, this application will not explain the control method and circuit connection in detail.

Claims

1. An adjustable bracket for repairing broken gear teeth, characterized in that, The device includes an adjustment mechanism (1) and a fixing mechanism (2). The adjustment mechanism (1) includes a base (101), a support frame (102) is fixedly installed on one side of the upper end of the base (101), a lifting rod (103) is slidably installed inside the support frame (102), a truss (104) is fixedly installed on one side of the upper end of the lifting rod (103), and a transmission box (105) is fixedly installed at one end of the truss (104). The fixing mechanism (2) includes a connecting frame (201), one end of which is connected to the transmission box (105). The connecting frame (201) is rotated and connected. A first fixing frame (202) is fixedly installed at the bottom of one side of the connecting frame (201). An adjusting frame (203) is fixedly installed at the upper side of one side of the connecting frame (201). A second fixing frame (204) is slidably inserted at the bottom of the adjusting frame (203). T-shaped slots (207) are opened on the facing surfaces of the first fixing frame (202) and the second fixing frame (204). U-shaped clamping blocks (205) are slidably inserted inside the T-shaped slots (207). Rubber pads are provided on the inner side of the U-shaped clamping blocks (205).

2. The adjustable bracket for repairing a broken gear tooth according to claim 1, wherein An adjusting screw (206) is threadedly connected to the center of the adjusting frame (203), and the bottom end of the adjusting screw (206) is rotatably connected to the top end of the second fixed frame (204).

3. The adjustable bracket for repairing a broken gear tooth according to claim 1, wherein Each side of the T-shaped slot (207) is slidably fitted with a stop block (208), one end of which abuts against the bottom side of the U-shaped clamping block (205).

4. The adjustable support for gear tooth repair of claim 3, wherein, Locking bolts (209) are movably inserted on one side of the opposite side of the first fixing frame (202) and the second fixing frame (204), and one end of the locking bolt (209) is threadedly connected to the abutment block (208).

5. The adjustable bracket for gear tooth repair of claim 1, wherein, The transmission box (105) is rotatably connected to a worm gear (106), and the central axis of the worm gear (106) is connected to one end of the connecting frame (201).

6. The adjustable support for gear tooth repair of claim 5, wherein, The inner side of the transmission box (105) is rotatably connected to a worm (107), which meshes with a worm wheel (106). One end of the worm (107) extends through the transmission box (105) to the outside and is fitted with a knob (108).

7. The adjustable bracket for gear tooth repair of claim 1, wherein, The support frame (102) is rotatably connected to the bottom of the internal part of the screw rod (109), and the lifting rod (103) is inserted into the center of the bottom of the sleeve (110). The screw rod (109) and the sleeve (110) are threadedly connected.

8. The adjustable bracket for repairing a broken gear tooth according to claim 7, wherein The bottom end of the lead screw (109) is fitted with a first bevel gear (112). Inside the support frame (102), a second bevel gear (111) is rotatably connected to one side of the first bevel gear (112). The first bevel gear (112) and the second bevel gear (111) mesh with each other. One end of the second bevel gear (111) extends through the support frame (102) to the outside and is fitted with a rotating wheel.