Adjustable half shaft press-fitting equipment

Abstract

The utility model relates to the technical field of half shaft press fitting, in particular to an adjustable half shaft press fitting device which comprises a supporting frame, a hydraulic oil cylinder, a workbench and a supporting seat, the supporting seat comprises a base, two parallel clamping grooves are formed in the upper end face of the base, two first axial limiting blocks are inserted in the clamping grooves through insertion and extraction structures respectively, and the two first axial limiting blocks are connected with the hydraulic oil cylinder. Two first axial limiting blocks are arranged on the upper end face of one side of the base, two second axial limiting blocks are arranged between the two first axial limiting blocks in a fixed structure, two rotating frames are arranged on the upper end face of one side of the base and connected with the base in a rotating structure mode, a first Y-direction sliding groove, a second Y-direction sliding groove and an X-direction sliding groove are formed in each rotating frame, and the first Y-direction sliding grooves communicate with the second Y-direction sliding grooves; a base plate is arranged on the outer side of the first Y-direction sliding groove. Adjusting supporting legs are arranged on the two sides of the base and detachably connected with the workbench. The device can be matched with rear axle shaft holes with different spans and different height sizes, and frequent hoisting, mounting and dismounting in the press fitting process of the rear axle shaft are avoided.

Description

Technical field:

[0001] The present application relates to the technical field of half-axle press-fitting, and in particular to an adjustable half-axle press-fitting device. Background technology:

[0002] The utility model patent with patent application number 201920404364.4 is a bulldozer half-axle press, comprising a base, on which a cylinder bracket is symmetrically installed, a hydraulic cylinder is fixed on the cylinder bracket, and a rear axle support seat is fixed in the middle position of the two cylinder brackets, wherein a sliding positioning device is also provided between each cylinder bracket and the rear axle support seat, and the sliding positioning device comprises a fixed seat, a slide bed and a clamping part, the fixed seat is fixed on the base, and a slide groove is provided at the upper end of the fixed seat along the extension and contraction direction of the hydraulic cylinder; a sliding block is provided at the bottom end of the slide bed, the sliding block is matched with the slide groove, and the clamping part is detachably fixed to the upper end of the slide bed, and the clamping part is matched with the bulldozer half-axle, and the axis center line of the bulldozer half-axle clamped in the clamping part coincides with the axis center line of the half-axle hole on the rear axle fixed on the rear axle support seat.

[0003] Since there are many different models of existing bulldozers, each model of bulldozer needs to be equipped with a corresponding model of rear axle. Different models of rear axles need to use different support seats due to the different sizes of the left and right gear spacing, up and down heights and other dimensions of the half-axle holes. This requirement results in the need for workers to frequently lift and replace different models of support seats during the installation of different models of bulldozers. In addition, there are generally multiple bolt holes at the bottom of the rear axle for matching the support seats. In the process of replacing the support seats, the bolts need to be loosened and tightened multiple times, which is time-consuming and labor-intensive, and greatly reduces work efficiency. Utility model content:

[0004] In order to solve the above technical problems, the utility model provides an adjustable half-axle press-fitting device, which solves the technical problem that different types of bulldozers need to be frequently hoisted and replaced during installation, which is time-consuming and labor-intensive and reduces work efficiency. In order to solve the above technical problems, the technical solution adopted by the utility model is:

[0005] An adjustable half-axle press-fitting device includes a support frame for supporting a rear axle, a workbench is arranged on one side of the support frame, hydraulic cylinders are arranged on the left and right sides of the upper end surface of the workbench, and a support seat is arranged on the upper end surface of the workbench between the two hydraulic cylinders, and the support seat includes:

[0006] Base, two parallel slots are provided on the left and right sides of the upper end surface of the base; a first axial limit block, the two first axial limit blocks are connected to the slot in a plug-in structure; a second axial limit block, the two second axial limit blocks are arranged between the two first axial limit blocks in a fixed structure; a rotating frame, the two rotating frames are respectively arranged on the upper end surface of the base in a rotating structure, and the rotating frame is provided with a first Y-direction slide groove, a second Y-direction slide groove and an X-direction slide groove, and the first Y-direction slide groove and the second Y-direction slide groove are connected to each other; an X-direction bolt and a Y-direction bolt, the X-direction bolt is inserted into the X-direction slide groove, and the Y-direction bolt is inserted into the first Y-direction slide groove or the second Y-direction slide groove; a pad, the pad is arranged on the rotating frame outside the first Y-direction slide groove; an adjusting leg, the adjusting leg is arranged on the left and right sides of the base, and is detachably connected to the workbench;

[0007] Furthermore, the rotating frame includes a connecting plate, which is arranged on the upper end surface of the base in a rotating structure; a first vertical plate is fixedly arranged on one side of the connecting plate, and a first cushion block is fixedly arranged on the outer surface of the first vertical plate away from the connecting plate;

[0008] The outer side facade of the connecting plate adjacent to the first vertical plate is fixedly provided with a second vertical plate.

[0009] Furthermore, the X-direction sliding groove is opened at the upper part of the first vertical plate, and the first Y-direction sliding groove and the second Y-direction sliding groove are both opened at the upper part of the second vertical plate along the horizontal direction.

[0010] Furthermore, an L-shaped pad is hung on the second vertical plate, and a strip-shaped through groove is opened in the vertical section of the pad;

[0011] A slot is provided on the horizontal section of the pad.

[0012] Furthermore, a screw is provided in the slot of the backing plate, and the screw is connected to the second vertical plate through threaded engagement.

[0013] Furthermore, positioning grooves are provided on the second axial limit block and the first axial limit block.

[0014] Furthermore, the adjusting leg comprises a leg body, and a second cushion block is detachably mounted on the upper end surface of the leg body.

[0015] The beneficial effects of the utility model are:

[0016] A first axial limit block and a second axial limit block are set to limit the left and right directions of rear axles with different gear pitches to prevent the rear axle from moving in the left and right directions during installation; a first cushion block and an adjustment leg are set to support rear axles of different heights to ensure height adaptation; the rotating structure of the rotating frame can flexibly cope with different types of rear axles, facilitate the coordination of bolts with the bolt holes on the rear axle, and fix the rear axle in the front and rear directions; by limiting the rear axle in the left and right, height, and front and rear directions, the rear axle position is accurately positioned, and the rear axle half-axle holes of different gear pitches and different heights can be matched, so that the support seat does not need to be disassembled during the installation of the rear axle half-axle, saving time and improving work efficiency. Description of the drawings:

[0017] Figure 1 It is a schematic diagram of the three-dimensional structure of the support seat.

[0018] Figure 2 It is a schematic diagram of the three-dimensional structure of the support base from another angle.

[0019] Figure 3 It is a schematic cross-sectional structure diagram of the first embodiment.

[0020] Figure 4 It is a schematic cross-sectional structure diagram of the second embodiment.

[0021] Figure 5 It is a schematic diagram of the cross-sectional structure of embodiment 3.

[0022] In the figure:

[0023] 1. Workbench, 2. Base, 3. Second axial limit block, 4. First axial limit block, 5. Connecting plate, 6. First vertical plate, 7. First cushion block, 8. Second vertical plate, 9. Pad, 10. Leg body, 11. Second cushion block, 12. X-axis slide groove, 13. Second Y-axis slide groove, 14. First Y-axis slide groove, 15. Bar through groove, 16. Positioning groove. Specific implementation method:

[0024] In order to make the purpose, technical scheme and advantages of the implementation of the utility model clearer, the utility model will now be further described in detail with reference to the accompanying drawings and the following examples so that the public can better understand the implementation method of the utility model. The specific implementation scheme of the utility model is as follows:

[0025] An adjustable half-axle press-fitting device comprises a support frame for supporting a rear axle, a workbench 1 is arranged on one side of the support frame, hydraulic cylinders are arranged on the left and right sides of the upper end surface of the workbench 1, and a support seat is arranged on the upper end surface of the workbench between the two hydraulic cylinders, and the support seat comprises:

[0026] A base 2, two parallel card slots are opened on both sides of the upper end surface of the base 2, and two first axial limit blocks 4 are respectively inserted into the card slots in a plug-in structure manner, and two second axial limit blocks 3 are arranged between the two first axial limit blocks 4 in a fixed structure manner. The first axial limit block 4 and the second axial limit block 3 are arranged to limit the left and right directions of rear axles with different gear pitches to prevent the rear axles from moving in the left and right directions during installation;

[0027] A rotating frame is respectively arranged on the upper end surface of the base 2 on one side of the two second axial limit blocks 3, and the two rotating frames are respectively connected to the base 2 in a rotating structure mode, and a first Y-direction slide groove 14, a second Y-direction slide groove 13 and an X-direction slide groove 12 are opened on the rotating frame, and the first Y-direction slide groove 14 and the second Y-direction slide groove 13 are connected to each other, an X-direction bolt is penetrated in the X-direction slide groove 12, and a Y-direction bolt is penetrated in the first Y-direction slide groove 14; a pad 9 is arranged on the outer side of the first Y-direction slide groove 14;

[0028] Specifically, the rotating frame includes a connecting plate 5, which is arranged on the upper end surface of the base 2 in a rotating structure manner; a first vertical plate 6 is fixedly arranged on one side of the connecting plate 5, and a first cushion block 7 is fixedly arranged on the outer facade of the first vertical plate 6 away from the connecting plate 5; a second vertical plate 8 is fixedly arranged on the outer facade of the connecting plate 5 adjacent to the first vertical plate 6; the connecting plate 5, the first vertical plate 6, the first cushion block 7 and the second vertical plate 8 can rotate synchronously around the rotating shaft to achieve the limiting of different types of half-axles and fix them in the front and rear directions; this rotating structure of the rotating frame can flexibly cope with different types of rear axles, and does not need to be disassembled during installation, saving time and improving work efficiency.

[0029] Furthermore, the X-direction slide groove 12 is opened at the upper part of the first vertical plate 6, and the first Y-direction slide groove 14 and the second Y-direction slide groove 13 are both opened at the upper part of the second vertical plate 8 in the horizontal direction; the slide groove is arranged so that the bolt can pass through the slide groove to connect with the rear axle to fix the rear axle, and the bolt can slide along the slide groove to correspond to the rear axle bolt holes at different positions, and because the first Y-direction slide groove 14 and the second Y-direction slide groove 13 are interconnected, only one bolt can be arranged in the Y-direction slide groove, and when the positions of the bolt holes of the rear axles of different models are different, the bolt can slide along the slide groove until it corresponds to the rear axle bolt holes at different positions.

[0030] It should be noted that an L-shaped pad 9 is hung on the second vertical plate 8, and a strip-shaped through-groove 15 is provided in the vertical section of the pad 9, through which bolts can pass to connect with the rear axle; a slot is provided in the horizontal section of the pad 9, and a screw is arranged in the slot of the pad 9, and the screw is connected to the second vertical plate 8 by threaded engagement, and the screw can fix the pad 9 on the second vertical plate 8 to prevent the pad 9 from falling off; when the side surface of the second vertical plate 8 cannot fit with the surface of the rear axle and there is a gap, the pad 9 can be used to fill the gap to achieve the effect of front and rear limiting the rear axle.

[0031] It should be explained that both the second axial limit block 3 and the first axial limit block 4 are provided with positioning grooves 16, which enable the half shaft to pass straightly into the rear axle half shaft hole on the other side without falling after passing through the half shaft hole on one side.

[0032] It should be explained that adjustment legs are provided on both sides of the base 2, and the adjustment legs are detachably connected to the workbench 1; through the design of the rotating frame, limit blocks, pads, etc., the rear axle half-axle holes with different gear spacings and different height sizes can be matched, avoiding frequent lifting and disassembly during the press installation of the rear axle half-axle.

[0033] Preferably, the adjusting leg comprises a leg body 10 and a second cushion block 11, and the second cushion block 11 is detachably mounted on the upper end surface of the leg body 10; by changing the height of the adjusting leg, support for rear axles of different heights is achieved.

[0034] The working principle and working process of the utility model are as follows:

[0035] In the first embodiment, Figure 3 As shown, the first axial limit block 4 is inserted into the slot on the upper end surface of the base 2, the rotating frame is rotated until the first vertical plate 6 is facing the direction of the second axial limit block 3, and then the adjusting leg is removed from the workbench 1, and the rear end of the rear axle is placed on the support seat. Two protrusions are arranged on the bottom of the rear end of the rear axle, so that the lower surface of the protrusions contacts the upper end surface of the first cushion block 7, and the X-direction bolt passes through the X-direction slide groove 12 and is connected to the rear axle by threaded engagement, and the front end of the rear axle is placed on the support frame, and the rear axle is kept in a horizontal state by changing the height of the support frame. After the rear axle is placed, the hydraulic cylinder is started to press the half-axle.

[0036] In the second embodiment, Figure 4 As shown, the adjusting leg is installed on the workbench 1, and then the pad 9 is fixed to the upper end surface of the second vertical plate 8 with screws, the rotating frame is rotated until the second vertical plate 8 is facing the second axial limit block 3, and the second pad 11 is installed on the upper end surface of the leg body 10, and then the left and right sides of the rear end of the rear axle are placed on the adjusting leg, and then the Y-direction bolt is passed through the first Y-direction slide groove 14 and the strip through groove 15 to connect with the rear axle through threaded engagement, the front end of the rear axle is placed on the support frame, and the height of the support frame is changed to keep the rear axle in a horizontal state. After the rear axle is placed, the hydraulic cylinder is started to press the half-axle.

[0037] In the third embodiment, Figure 5As shown, on the basis of the second embodiment, the pad 9 is removed from the second vertical plate 8, the second pad 11 is removed from the leg body 10, and then the Y-direction bolt is slid from the first Y-direction slide groove 14 to the second Y-direction slide groove 13, and then the left and right sides of the rear end of the rear axle are placed on the adjustment legs, the Y-direction bolt passes through the second Y-direction slide groove 13 and is connected to the rear axle by threaded engagement, and finally the front end of the rear axle is placed on the support frame, the height of the support frame is changed to keep the rear axle in a horizontal state, and after the rear axle is placed, the hydraulic cylinder is started to press the half-axle.

[0038] In the description of the present invention, it should be understood that the terms "center", "upper", "lower", "left", "right", "front", "back", "lower left", "upper right", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limiting the scope of protection of the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance. Although the present invention has been described according to a limited number of embodiments, those skilled in the art, with the benefit of the above description, should understand that other embodiments can be conceived within the scope of the present invention described thereby.

Claims

1. An adjustable half-axle press-fitting device, comprising a support frame for supporting a rear axle, a workbench (1) is arranged on one side of the support frame, hydraulic cylinders are arranged on the left and right sides of the upper end surface of the workbench (1), and a support seat is arranged on the upper end surface of the workbench between the two hydraulic cylinders, characterized in that the support seat include: A base (2), wherein two parallel slots are provided on the left and right sides of the upper end surface of the base (2); A first axial limit block (4), wherein the two first axial limit blocks (4) are both connected to the card slot in a plug-in structure; A second axial limit block (3), wherein the two second axial limit blocks (3) are both arranged between the two first axial limit blocks (4) in a fixed structure manner; A rotating frame, wherein the two rotating frames are respectively arranged on the upper end surface of the base (2) in a rotating structure manner, and a first Y-direction slide groove (14), a second Y-direction slide groove (13) and an X-direction slide groove (12) are provided on the rotating frame, and the first Y-direction slide groove (14) and the second Y-direction slide groove (13) are connected to each other; An X-direction bolt and a Y-direction bolt, wherein the X-direction bolt is inserted into the X-direction slide groove (12), and the Y-direction bolt is inserted into the first Y-direction slide groove (14) or the second Y-direction slide groove (13); A backing plate (9), the backing plate (9) being arranged on a rotating frame outside the first Y-direction sliding groove (14); Adjustable legs are arranged on the left and right sides of the base (2) and are detachably connected to the workbench (1).

2. The adjustable half-axle press-fitting device according to claim 1, characterized in that: The rotating frame comprises a connecting plate (5), which is arranged on the upper end surface of the base (2) in a rotating structure manner; a first vertical plate (6) is fixedly arranged on one side of the connecting plate (5), and a first cushion block (7) is fixedly arranged on the outer surface of the first vertical plate (6) away from the connecting plate (5); The outer side elevation of the connecting plate (5) adjacent to the first vertical plate (6) is provided with a second vertical plate (8) in a fixed manner.

3. The adjustable half-axle press-fitting device according to claim 2, characterized in that: An X-direction slide groove (12) is provided on the upper portion of the first vertical plate (6); The first Y-direction sliding groove (14) and the second Y-direction sliding groove (13) are both opened in the horizontal direction on the upper part of the second vertical plate (8).

4. The adjustable half-axle press-fitting device according to claim 3 is characterized in that: An L-shaped pad (9) is hung on the second vertical plate (8), and a strip-shaped through groove (15) is opened in the vertical section of the pad (9); A slot is provided on the horizontal section of the backing plate (9).

5. The adjustable half-axle press-fitting device according to claim 4, characterized in that: A screw is arranged in the slot, and the screw is connected to the second vertical plate (8) through threaded engagement.

6. The adjustable half-axle press-fitting device according to claim 1, characterized in that: The second axial limit block (3) and the first axial limit block (4) are both provided with positioning grooves (16).

7. The adjustable half-axle press-fitting device according to claim 1, characterized in that: The adjustable leg comprises a leg body (10), and a second cushion block (11) is detachably mounted on the upper end surface of the leg body (10).

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