Gear puller for mainshaft of transmission

Abstract

The utility model belongs to the gearbox maintenance technical field, specifically is a kind of gearbox maintenance main shaft gear seat puller, including crossbeam, the centre of crossbeam is equipped with threaded hole, the inside thread connection of threaded hole has screw rod, the both sides of crossbeam are equipped with sliding slot respectively, the inside sliding connection of sliding slot has sliding block, the surface of sliding block is equipped with installation mouth, the inside of installation mouth is provided with adjusting plate, the bottom fixed connection of adjusting plate has hook claw, the surface of sliding block is equipped with adjusting assembly;The utility model can adjust the axial distance of the front end of drawing shaft and hook claw by the position of adjusting plate vertically, can complete the disassembly of multiple gear seats, increase the applicability of puller, by the size of gear seat adjusting the opening amplitude of adjusting plate, so that hook claw can be stuck to multiple sizes gear seat, improve the flexibility of device use.

Description

Technical Field

[0001] This utility model relates to the field of gearbox repair technology, specifically a gearbox main shaft gear seat puller. Background Technology

[0002] In the maintenance and repair of gearboxes, the disassembly of the main shaft gear housing is an extremely important and challenging task. Traditional methods for disassembling the main shaft gear housing often involve primitive means such as hammering and prying with a pry bar. This method is not only inefficient, but also easily causes irreversible damage to the main shaft, gear housing, and related components, such as deformation of the gear housing, scratches on the surface of the main shaft, and damage to the gear teeth. This seriously affects the subsequent assembly accuracy and overall performance of the gearbox. In existing technology, the gear housing is removed using a main shaft gear housing puller.

[0003] Existing gear seat pullers have the following drawbacks: the length of the hook claws of the gear seat puller is not adjustable, the applicable range is small, it cannot disassemble different models of gear seats, and it is inconvenient to use; therefore, in order to solve the above problems, a main shaft gear seat puller for gearbox repair is proposed. Utility Model Content

[0004] To overcome the shortcomings of existing technologies and solve the aforementioned technical problems, this utility model proposes a spindle gear seat puller for gearbox repair.

[0005] The technical solution adopted by this utility model to solve its technical problem is as follows: The main shaft gear seat puller for gearbox repair of this utility model includes a crossbeam, a threaded hole is opened at the center of the crossbeam, a lead screw is threadedly connected inside the threaded hole, a sliding groove is opened on both sides of the crossbeam, a slider is slidably connected inside the sliding groove, an installation port is opened on the surface of the slider, an adjustment plate is set inside the installation port, a hook is fixedly connected to the bottom end of the adjustment plate, an adjustment assembly is installed on the surface of the slider, the adjustment assembly includes a U-shaped mounting bracket, a positioning hole one, and a fixing plate, the two ends of the mounting bracket are fixedly connected to the side wall of the slider, a threaded through hole is opened on the surface of the mounting bracket, a limit bolt is threadedly connected inside the threaded through hole, the limit bolt passes through the slider, the positioning hole one is opened from top to bottom on the surface of the adjustment plate, the bottom end of the fixing plate is fixedly installed on the crossbeam, and a plurality of positioning holes two are opened on the surface of the fixing plate.

[0006] Preferably, the limiting bolt passes through positioning hole one and positioning hole two.

[0007] Preferably, the adjusting plate includes an upper plate and a lower plate, and the opposite ends of the upper plate and the lower plate are rotatably connected by a torsion spring shaft.

[0008] Preferably, the top of the lower plate is provided with an installation groove, and a pressing block is slidably connected to the inner wall of the installation groove.

[0009] Preferably, a hook is fixedly connected to the upper surface of the pressing block, and the hook is L-shaped.

[0010] Preferably, the bottom end of the upper plate is provided with a slot, and the slot is L-shaped.

[0011] Preferably, an elastic element is fixedly connected to the inner wall of the pressing block, and the other end of the elastic element is fixedly installed on the inner wall of the mounting groove.

[0012] Preferably, a slanted groove is provided on one side of the top of the lower plate, and the end of the pressing block located outside the mounting groove is located inside the slanted groove.

[0013] The advantages of this utility model are:

[0014] 1. This utility model allows for adjustment of the axial distance between the front end of the pulling shaft and the hook claw by vertically adjusting the position of the adjustment plate. This enables the disassembly of various gear seats, increasing the applicability of the puller. By adjusting the opening range of the adjustment plate according to the size of the gear seat, the hook claw can hold gear seats of various sizes, improving the flexibility of the device.

[0015] 2. This utility model uses a hook and a slot to engage, so that the upper and lower plates are kept perpendicular for use. After use, by pressing the pressing block inward, the hook is no longer engaged with the slot, and the adjustment plate can be folded for easy carrying. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the beam structure of this utility model;

[0019] Figure 3 This is a schematic diagram of the adjustment component structure of this utility model;

[0020] Figure 4 This is a schematic diagram of the mounting bracket structure of this utility model;

[0021] Figure 5 This is a partial cross-sectional view of the adjustment plate of this utility model.

[0022] In the diagram: 1. Crossbeam; 2. Lead screw; 3. Slide groove; 4. Slider; 5. Mounting port; 6. Adjusting plate; 61. Upper plate; 62. Lower plate; 63. Mounting groove; 64. Pressing block; 65. Hook; 66. Slot; 67. Elastic element; 7. Adjusting assembly; 71. Mounting bracket; 72. Limit bolt; 73. Positioning hole one; 74. Fixing plate; 75. Positioning hole two; 8. Hook claw. 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 scope of protection of the present utility model.

[0024] Please see Figure 1-5 As shown, a gearbox maintenance spindle gear seat puller includes a crossbeam 1 with a threaded hole at its center. A lead screw 2 is threaded into the threaded hole. Slide grooves 3 are provided on both sides of the crossbeam 1, and sliders 4 are slidably connected inside the slide grooves 3. An installation port 5 is provided on the surface of the slider 4, and an adjustment plate 6 is provided inside the installation port 5. A hook 8 is fixedly connected to the bottom end of the adjustment plate 6. An adjustment assembly 7 is installed on the surface of the slider 4. The adjustment assembly 7 includes a U-shaped mounting bracket 71, a positioning hole 73, and a fixing plate 74. The two ends of the mounting bracket 71 are fixedly connected to the side wall of the slider 4. A threaded through hole is provided on the surface of the mounting bracket 71, and a limit bolt 72 is threaded into the threaded through hole. The limit bolt 72 passes through the slider 4. The positioning hole 73 is provided from top to bottom on the surface of the adjustment plate 6. The bottom end of the fixing plate 74 is fixedly installed on the crossbeam 1. Several positioning holes 75 are provided on the surface of the fixing plate 74, and the limit bolts 72 pass through the positioning holes 73 and 75.

[0025] Specifically, in use, the hook 8 hooks onto the gear seat, the screw 2 is screwed against the end of the main shaft, and the hook 8 moves along the axial direction of the shaft, which can easily complete the disassembly of the gear seat. The position of the adjusting plate 6 can be adjusted by passing the limiting bolt 72 through the positioning hole 1 73, and the height of the adjusting plate 6 relative to the crossbeam 1 can be adjusted by inserting the limiting bolt 72 into different positioning holes 1 73. By vertically adjusting the position of the adjusting plate 6, the axial distance between the front end of the pulling shaft and the hook 8 can be adjusted, which can complete the disassembly of various gear seats and increase the applicability of the puller. The position of the slider 4 can be fixed by inserting the limiting bolt 72 into the positioning hole 2 75. By inserting the limiting bolt 72 into different positioning holes 2 75, the opening range of the adjusting plate 6 can be adjusted according to the size of the gear seat, so that the hook 8 can hold gear seats of various sizes, improving the flexibility of the device.

[0026] The adjusting plate 6 includes an upper plate 61 and a lower plate 62, with the opposite ends of the upper plate 61 and the lower plate 62 rotatably connected by a torsion spring shaft.

[0027] Specifically, a torsion force is applied to the lower plate 62 by a torsion spring shaft, causing the lower plate 62 to rotate outward around the shaft, thereby causing the adjustment plate 6 to rotate and fold, thus reducing the length of the adjustment plate 6 and making it easier to carry.

[0028] The lower plate 62 has a mounting groove 63 at its top end. A pressing block 64 is slidably connected to the inner wall of the mounting groove 63. A hook 65 is fixedly connected to the upper surface of the pressing block 64. The hook 65 is L-shaped. The upper plate 61 has a slot 66 at its bottom end. The slot 66 is L-shaped. An elastic element 67 is fixedly connected to the inner wall of the pressing block 64. The other end of the elastic element 67 is fixedly installed on the inner wall of the mounting groove 63. The elastic element 67 can be a leaf spring, a coil spring, a torsion bar spring, a rubber spring, etc. In this embodiment, a coil spring is used.

[0029] Specifically, the elastic element 67 applies an outward pushing force to the pressing block 64, causing the hook 65 to engage with the slot 66, thereby keeping the upper plate 61 and the lower plate 62 perpendicular for use. After use, the pressing block 64 is pressed inward, causing the hook 65 to disengage from the slot 66, at which point the adjustment plate 6 can be folded.

[0030] A slanted groove is provided on one side of the top of the lower plate 62, and the end of the pressing block 64 located outside the mounting groove 63 is located inside the slanted groove.

[0031] The parts of the device not covered herein are the same as or can be implemented using existing technologies.

[0032] Working principle: During use, the hook 8 hooks onto the gear seat, the screw 2 is screwed against the end of the main shaft, and the hook 8 moves along the axial direction of the shaft, which can easily complete the disassembly of the gear seat. The position of the adjusting plate 6 can be adjusted by passing the limiting bolt 72 through the positioning hole 1 73, and the height of the adjusting plate 6 relative to the crossbeam 1 can be adjusted by inserting the limiting bolt 72 into different positioning holes 1 73. By vertically adjusting the position of the adjusting plate 6, the axial distance between the front end of the pulling shaft and the hook 8 can be adjusted, which can complete the disassembly of various gear seats, increasing the applicability of the puller. The position of the slider 4 can be fixed by inserting the limiting bolt 72 into the positioning hole 2 75. By inserting the limiting bolt 72 into different positioning holes 2 75, the opening range of the adjusting plate 6 can be adjusted according to the size of the gear seat, so that the hook 8 can hold gear seats of various sizes, improving the flexibility of the device.

[0033] The elastic element 67 applies an outward pushing force to the pressing block 64, causing the hook 65 to engage with the slot 66, thus keeping the upper plate 61 and lower plate 62 perpendicular for use. After use, the pressing block 64 is pressed inward, causing the hook 65 to disengage from the slot 66, at which point the adjustment plate 6 can be folded. Torque is applied to the lower plate 62 through the torsion spring shaft, causing the lower plate 62 to rotate outward around the shaft, thus folding the adjustment plate 6 and reducing its length for easy carrying.

[0034] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0035] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A spindle gear seat puller for gearbox repair, comprising a crossbeam (1), characterized in that: A threaded hole is provided at the center of the crossbeam (1), and a lead screw (2) is threaded into the inside of the threaded hole. Slide grooves (3) are provided on both sides of the crossbeam (1), and a slider (4) is slidably connected inside the slide grooves (3). An installation port (5) is provided on the surface of the slider (4), and an adjustment plate (6) is provided inside the installation port (5). A hook (8) is fixedly connected to the bottom end of the adjustment plate (6). An adjustment assembly (7) is installed on the surface of the slider (4), and the adjustment assembly (7) includes a U-shaped mounting bracket (71). The mounting bracket (71) has a positioning hole (73) and a fixing plate (74). The two ends of the mounting bracket (71) are fixedly connected to the side wall of the slider (4). The mounting bracket (71) has a threaded through hole on its surface. The threaded through hole is connected to a limit bolt (72) through the threaded bolt (72). The limit bolt (72) passes through the slider (4). The positioning hole (73) is opened from top to bottom on the surface of the adjusting plate (6). The bottom end of the fixing plate (74) is fixedly installed on the crossbeam (1). The surface of the fixing plate (74) has several positioning holes (75).

2. The main shaft gear seat puller for gearbox repair according to claim 1, characterized in that: The limiting bolt (72) passes through positioning hole one (73) and positioning hole two (75).

3. The main shaft gear seat puller for gearbox repair according to claim 1, characterized in that: The adjusting plate (6) includes an upper plate (61) and a lower plate (62), and the opposite ends of the upper plate (61) and the lower plate (62) are rotatably connected by a torsion spring shaft.

4. The gearbox repair spindle puller according to claim 3, characterized in that: The top of the lower plate (62) is provided with an installation groove (63), and a pressing block (64) is slidably connected to the inner wall of the installation groove (63).

5. The main shaft gear seat puller for gearbox repair according to claim 4, characterized in that: The upper surface of the pressing block (64) is fixedly connected with a hook (65), and the hook (65) is L-shaped.

6. The main shaft gear seat puller for gearbox repair according to claim 3, characterized in that: The bottom end of the upper plate (61) is provided with a slot (66), which is L-shaped.

7. The main shaft gear seat puller for gearbox repair according to claim 5, characterized in that: An elastic element (67) is fixedly connected to the inner wall of the pressing block (64), and the other end of the elastic element (67) is fixedly installed on the inner wall of the mounting groove (63).

8. The main shaft gear seat puller for gearbox repair according to claim 4, characterized in that: A slanted groove is provided on one side of the top of the lower plate (62), and the end of the pressing block (64) located outside the mounting groove (63) is located inside the slanted groove.

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