Automatic press-fitting device for gear shaft

Abstract

The utility model relates to the technical field of press fitting of gear shafts, in particular to an automatic press fitting device for gear shafts, which is characterized in that a placing seat is fixed at the center of the top of a worktable, two vertically placed support plates are respectively fixed on the worktable on the left side and the right side of the placing seat, and the two support plates are oppositely arranged; the two supporting plates are each connected with a bearing plate through a clamping mechanism, the corresponding positions of the two bearing plates are each connected with a limiting plate, and inserting grooves used for installing the limiting plates are formed in the sides, away from the supporting plates, of the bearing plates. By the adoption of the structure, the problems that according to an existing gear shaft automatic press-fitting device, gears of different models and sizes cannot be limited conveniently, and limiting plates of different radians cannot be replaced conveniently according to the diameter changes of the gears are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of gear shaft press-fitting, in particular to an automatic gear shaft press-fitting device. Background Art

[0002] A gear shaft refers to a mechanical part that supports rotating parts and rotates with them to transmit motion, torque or bending moment. It is generally in the shape of a metal round rod, and each section can have a different diameter. The parts that perform rotating motion in the machine are installed on the shaft. According to the different shapes of the axis, the shaft can be divided into two categories: crankshafts and straight shafts. A pressing device is required when pressing the gear shaft. The current gear shaft pressing device is not convenient for limiting gears of different models and sizes, so an automatic gear shaft pressing device is needed.

[0003] The existing automatic gear shaft pressing device is inconvenient to limit gears of different models and sizes when in use, and it is inconvenient to replace limit plates of different arcs according to the diameter changes of the gears. At the same time, it is inconvenient to press the shaft body stably. Therefore, an automatic gear shaft pressing device is urgently needed. Summary of the invention

[0004] In order to solve the above-mentioned problem, the utility model designs an automatic pressing device for a gear shaft. The limiting plate can be quickly disassembled and assembled through the plug-in portion arranged on the limiting plate and the slot opened on the receiving plate, so that the limiting plate corresponding to the gear model and size can be quickly replaced, thereby completing the clamping of gears of different models and sizes, which plays a role in increasing practical performance.

[0005] In order to solve the above technical problems, the utility model provides an automatic pressing device for a gear shaft, comprising a workbench, a cross plate and a hydraulic cylinder, wherein the cross plate is fixed to the top of the workbench by side plates arranged at the left and right ends, and the two side plates are vertically fixed to the tops of the left and right ends of the workbench respectively, and the hydraulic cylinder is installed on the cross plate, characterized in that a placement seat is fixed at the center of the top of the workbench, and a vertically placed support plate is fixed on each of the workbenches on the left and right sides of the placement seat, the two support plates are arranged opposite to each other, and each of the two support plates is connected with a receiving plate through a clamping mechanism, and each of the corresponding positions on the two receiving plates is connected with a limit plate, and a slot for installing the limit plate is provided on the side of the receiving plate away from the support plate, and the limit plate is composed of an arc-shaped clamping part and a plug-in part connected to the arc-shaped clamping part, and the plug-in part is T-shaped, and the slot matches the plug-in part and its end facing the arc-shaped clamping part is open, and the arc-shaped clamping part is detachably connected to the receiving plate through the cooperation of the plug-in part and the slot.

[0006] Further: an elastic card block is arranged on each of the left and right sides of the plug-in part, the two elastic card blocks are connected to the plug-in part as a whole and are symmetrically arranged with respect to the central axis of the plug-in part, and a card groove is arranged on the inner wall of the slot relative to the position of the elastic card block.

[0007] Furthermore: the output shaft end of the hydraulic cylinder passes through the cross plate and is movably connected with it, a pressure plate is installed on the output shaft end of the hydraulic cylinder passing through the cross plate, the pressure plate is located directly above the placement seat, four guide pillars are vertically fixed on the top of the pressure plate, two guide pillars are respectively arranged on the left and right sides of the output shaft end of the hydraulic cylinder, the four guide pillars are symmetrically arranged in pairs with the central axis of the pressure plate as a reference, a first guide through hole is opened on the cross plate relative to the position of the four guide pillars, the guide pillars pass through the cross plate along the first guide through hole and are slidably connected with it.

[0008] Furthermore: the clamping mechanism includes a bolt and a sleeve rod threadedly connected to the support plate, the support plate is provided with a threaded through hole matching the bolt, one end of the bolt passes through the support plate along the threaded through hole and contacts the receiving plate, two sleeve rods are fixed to the side of the receiving plate away from the limiting plate, the support plate is provided with a second guide through hole matching the sleeve rod, the sleeve rod passes through the support plate along the second guide through hole and is slidably connected to it.

[0009] Furthermore: a limit block integrally connected to the sleeve rod is arranged on one end of the sleeve rod passing through the support plate, and a spring is also sleeved on the sleeve rod passing through the support plate, one end of the spring contacts the support plate, and the other end of the spring contacts the limit block.

[0010] Furthermore: the two sleeve rods are located at the front and rear sides of the bolt, and the two sleeve rods are symmetrically arranged with the central axis of the receiving plate as a reference.

[0011] After adopting the above structure, the beneficial effects of the utility model are as follows:

[0012] 1. The utility model can quickly disassemble and assemble the limit plate by means of the plug-in portion provided on the limit plate and the slot provided on the receiving plate, so that the limit plate corresponding to the gear model and size can be quickly replaced, thereby completing the clamping of gears of different models and sizes, improving the application range of the press-fitting device and playing a role in increasing practical performance.

[0013] 2. The utility model sets four guide pillars on the top of the pressing plate, which increase the running stability during the pressing process and play the effect of stably pressing down the shaft body. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0015] Figure 1It is a three-dimensional structural diagram of the utility model.

[0016] Figure 2 It is a structural schematic diagram of the clamping mechanism.

[0017] Figure 3 for Figure 2 A is an enlarged view of the middle image.

[0018] Figure 4 It is a structural schematic diagram of the limiting plate.

[0019] In the figure: 1 is a workbench, 2 is a support plate, 3 is a bolt, 4 is a sleeve rod, 5 is a receiving plate, 6 is a slot, 7 is a card slot, 9 is an elastic card block, 10 is a limit plate, 10-1 is an arc-shaped clamping part, 10-2 is a plug-in part, 11 is a placement seat, 12 is a side plate, 13 is a cross plate, 14 is a hydraulic cylinder, 15 is a pressure plate, 16 is a guide column, and 17 is a spring. DETAILED DESCRIPTION

[0020] like Figure 1 , Figure 3 and Figure 4The gear shaft automatic press-fitting device shown in the figure comprises a workbench 1, a cross plate 13 and a hydraulic cylinder 14, wherein the cross plate 13 is fixed to the top of the workbench 1 by side plates 12 arranged at the left and right ends, and the two side plates 12 are respectively vertically fixed to the tops of the left and right ends of the workbench 1, and the hydraulic cylinder 14 is installed on the cross plate 13, and a placement seat 11 is fixed at the center of the top of the workbench 1, and a vertically placed support plate 2 is fixed on the workbench 1 on the left and right sides of the placement seat 11, and the two support plates 2 are arranged opposite to each other, and the two support plates 2 are clamped by a clamping mechanism. A receiving plate 5 is connected, and a limiting plate 10 is connected to the corresponding position of each of the two receiving plates 5. A slot 6 for installing the limiting plate 10 is provided on the receiving plate 5 on the side away from the supporting plate 2. The limiting plate 10 is composed of an arc-shaped clamping part 10-1 and a plug-in part 10-2 connected to the arc-shaped clamping part. The plug-in part is T-shaped, and the slot matches the plug-in part and one end thereof facing the arc-shaped clamping part is open. The arc-shaped clamping part 10-1 is detachably connected to the receiving plate 5 through the matching of the plug-in part 10-2 and the slot. When working, the bearing to be pressed is first placed on the placement seat 11, and then the corresponding limiting plate is replaced according to the model and size of the bearing. The limiting plates on both sides clamp and limit the bearing placed on the placement seat under the action of the clamping mechanism, and then the lower end of the gear shaft is inserted into the connecting through hole on the bearing, and the hydraulic cylinder is started to press the gear shaft downward. When the lower end of the gear shaft contacts the placement seat, the surface is pressed into place. The utility model can quickly disassemble and assemble the limit plate by means of the plug-in part provided on the limit plate and the slot provided on the receiving plate, so that the limit plate corresponding to the gear model and size can be quickly replaced, thereby completing the clamping of gears of different models and sizes, improving the application range of the press-fitting device and playing a role in increasing practical performance.

[0021] like Figure 2 , Figure 3 and Figure 4 The left and right sides of the plug-in part 10-2 are each provided with an elastic block 9, and the two elastic blocks 9 are connected to the plug-in part 10-2 as a whole and are symmetrically arranged with the central axis of the plug-in part 10-2 as a reference. A card slot 7 is arranged on the inner wall of the slot relative to the position of the elastic block. When the elastic block is inserted into the card slot, it indicates that the plug-in part is installed in place, and the plug-in part is restricted in the slot by the cooperation between the elastic block and the card slot.

[0022] like Figure 1The shaft end of the hydraulic cylinder shown passes through the cross plate 13 and is movably connected thereto. A pressure plate 15 is installed on the shaft end of the hydraulic cylinder passing through the cross plate 13. The pressure plate 15 is located directly above the placement seat 11. Four guide pillars 16 are vertically fixed on the top of the pressure plate 15. Two guide pillars are respectively arranged on the left and right sides of the shaft end of the hydraulic cylinder. The four guide pillars 16 are symmetrically arranged in pairs with the central axis of the pressure plate 15 as a reference. A first guide through hole is respectively opened on the cross plate 13 relative to the position of the four guide pillars. The guide pillars pass through the cross plate 13 along the first guide through hole and are slidably connected thereto. The utility model provides a cross plate, a hydraulic cylinder, a pressure plate and a guide pillar, and by docking the shaft body to the through hole in the middle of the gear, the hydraulic cylinder is started, so that the pressure plate can press down the shaft body, and the guide pillars can slide along the cross plate, thereby achieving the effect of stably pressing down the shaft body.

[0023] like Figure 1 and Figure 2 The clamping mechanism shown includes a bolt 3 and a sleeve rod 4 threadedly connected to a support plate 2, wherein the support plate 2 is provided with a threaded through hole matching the bolt, one end of the bolt passes through the support plate along the threaded through hole and contacts the receiving plate, two sleeve rods 4 are fixed to the side of the receiving plate away from the limiting plate, and the support plate 2 is provided with a second guide through hole matching the sleeve rod 4, the sleeve rod passes through the support plate along the second guide through hole and is slidably connected thereto. The utility model provides a support plate, bolt, sleeve rod, receiving plate, limiting plate and placement seat, and by placing the gear on the placement seat and rotating the bolt, the bolt can squeeze the receiving plate, drive the sleeve rod to slide along the support plate and squeeze the spring, so that the limiting plate squeezes the gear, which facilitates the limiting of gears of different sizes and models, and improves the application range of the press-fit device.

[0024] like Figure 1 and Figure 2 The sleeve rod shown passes through one end of the support plate and is provided with a limit block integrally connected thereto. The sleeve rod passing through the support plate is also provided with a spring 17, one end of the spring is in contact with the support plate, and the other end of the spring is in contact with the limit block; the two sleeve rods are located at the front and rear sides of the bolt, and the two sleeve rods are symmetrically arranged with the central axis of the receiving plate 5 as a reference.

[0025] After the lower end bearing is press-fitted, the upper end bearing sleeve can be arranged on the upper end of the gear shaft, and then a positioning sleeve is sleeved on the upper end of the gear shaft, the lower end of the positioning sleeve contacts the bearing, the pressure plate contacts the upper end of the positioning sleeve, and the hydraulic cylinder is started to press the upper end bearing into place using the positioning sleeve.

[0026] The above are only preferred implementations of the utility model. The protection scope of the utility model is not limited to the above embodiments. All technical solutions under the idea of ​​the utility model belong to the protection scope of the utility model. It should be pointed out that for ordinary technicians in this technical field, some improvements and modifications without departing from the principle of the utility model should be regarded as the protection scope of the utility model.

Claims

1. A gear shaft automatic press-fitting device, comprising a workbench (1), a transverse plate (13) and a hydraulic cylinder (14), wherein the transverse plate (13) is fixed to the top of the workbench (1) by side plates (12) arranged at the left and right ends, the two side plates (12) are vertically fixed to the tops of the left and right ends of the workbench (1), respectively, and the hydraulic cylinder (14) is installed on the transverse plate (13), characterized in that: A placement seat (11) is fixed at the center of the top of the workbench (1), and a vertically placed support plate (2) is fixed on each of the workbench (1) on the left and right sides of the placement seat (11). The two support plates (2) are arranged opposite to each other, and each of the two support plates (2) is connected to a receiving plate (5) through a clamping mechanism. A corresponding position on each of the two receiving plates (5) is connected to a limiting plate (10). The side of the receiving plate (5) away from the support plate (2) is A slot (6) is provided for installing a limit plate (10), the limit plate (10) being composed of an arc-shaped clamping portion (10-1) and a plug-in portion (10-2) connected to the arc-shaped clamping portion, the plug-in portion being T-shaped, the slot matching the plug-in portion and having an end facing the arc-shaped clamping portion being open, the arc-shaped clamping portion (10-1) being detachably connected to the receiving plate (5) through the cooperation between the plug-in portion (10-2) and the slot.

2. The automatic press-fit device for a gear shaft according to claim 1, characterized in that: An elastic card block (9) is respectively arranged on the left and right sides of the plug-in portion (10-2); the two elastic card blocks (9) are integrally connected to the plug-in portion (10-2) and are symmetrically arranged with the central axis of the plug-in portion (10-2) as a reference; and a card slot (7) is arranged on the inner wall of the slot at a position relative to the elastic card block.

3. The automatic press-fit device for a gear shaft according to claim 1, characterized in that: The shaft end of the hydraulic cylinder passes through the transverse plate (13) and is movably connected thereto. A pressure plate (15) is installed on the shaft end of the hydraulic cylinder passing through the transverse plate (13). The pressure plate (15) is located directly above the placement seat (11). Four guide pillars (16) are vertically fixed on the top of the pressure plate (15). Two guide pillars are respectively arranged on the left and right sides of the shaft end of the hydraulic cylinder. The four guide pillars (16) are symmetrically arranged in pairs with the central axis of the pressure plate (15) as a reference. A first guide through hole is opened on the transverse plate (13) relative to the position of the four guide pillars. The guide pillars pass through the transverse plate (13) along the first guide through hole and are slidably connected thereto.

4. The automatic press-fit device for a gear shaft according to claim 1, characterized in that: The clamping mechanism comprises a bolt (3) and a sleeve rod (4) threadedly connected to the support plate (2); a threaded through hole matching the bolt is provided on the support plate (2); one end of the bolt passes through the support plate along the threaded through hole and contacts the receiving plate; two sleeve rods (4) are fixed to the side of the receiving plate away from the limiting plate; a second guide through hole matching the sleeve rod (4) is provided on the support plate (2); the sleeve rod passes through the support plate along the second guide through hole and is slidably connected to the support plate.

5. The automatic press-fitting device for a gear shaft according to claim 4, characterized in that: A limit block integrally connected to the sleeve rod is arranged on one end of the sleeve rod passing through the support plate, and a spring (17) is also sleeved on the sleeve rod passing through the support plate, one end of the spring contacts the support plate, and the other end of the spring contacts the limit block.

6. The automatic press-fit device for a gear shaft according to claim 4, characterized in that: The two sleeve rods are located at the front and rear sides of the bolt, and the two sleeve rods are symmetrically arranged with the central axis of the receiving plate (5) as a reference.

Images