Transfer case shell positioning mechanism

Abstract

A transfer case shell positioning mechanism comprises a transfer case shell and a positioning base, a shell positioning pin is arranged on the vertical datum plane of the transfer case shell, a positioning vertical plate is fixed to one side of the positioning base, a positioning kidney-shaped hole matched with the shell positioning pin is formed in one side of the positioning vertical plate, the positioning kidney-shaped hole is vertically formed, and the shell positioning pin is arranged in the positioning kidney-shaped hole. The shell positioning pin has a vertical insertion range in the positioning waist-shaped hole; a replaceable heightening plate is arranged on the positioning base, the replaceable heightening plate supports the bottom face of the transfer case shell and enables the transfer case shell to ascend to the preset height, and the shell positioning pin ascends to the vertical inserting range of the positioning kidney-shaped hole along with the transfer case shell. According to the transfer case shell positioning mechanism, horizontal positioning of the transfer case shell is achieved through cooperation of the shell positioning pin and the positioning vertical plate, vertical positioning of the transfer case shell is achieved through the replaceable heightening plate, then the transfer case shell is kept at the preset height beneficial to press fitting, positioning is accurate, and efficiency is high.

Description

Technical Field

[0001] This utility model relates to the field of transfer case technology, specifically a transfer case housing positioning mechanism. Background Technology

[0002] The transfer case assembly is a crucial component of the four-wheel drive tractor chassis, and every four-wheel drive tractor chassis has one transfer case assembly. Its main function is to transmit power to the front wheels, increasing the tractor's traction and handling. During the assembly of the transfer case assembly, a bearing needs to be vertically press-fitted onto the top of the transfer case housing. However, the reference surface of the transfer case housing is on the side, and the other surfaces are irregularly shaped and mostly rough surfaces. This lack of a positioning reference during assembly leads to problems such as high labor intensity and low assembly efficiency for workers during the pressing process. Utility Model Content

[0003] The purpose of this utility model is to propose a transfer case housing positioning mechanism, which achieves horizontal positioning of the transfer case housing through the cooperation of the housing positioning pin and the positioning plate, and achieves vertical positioning of the transfer case housing through the replaceable shim plate, thereby keeping the transfer case housing at a predetermined height that is conducive to press-fitting, with accurate positioning and high efficiency.

[0004] The technical solution adopted by this utility model is: a transfer case housing positioning mechanism, including a transfer case housing and a positioning base. A housing positioning pin is provided on the vertical reference surface of the transfer case housing. A positioning plate is connected to the positioning base. A positioning waist-shaped hole adapted to the housing positioning pin is provided on one side of the positioning plate. The positioning waist-shaped hole is vertically arranged so that the housing positioning pin has a vertical insertion range in the positioning waist-shaped hole.

[0005] The positioning base is equipped with a replaceable shim plate, which supports the bottom surface of the transfer case housing and raises the transfer case housing to a predetermined height. The housing positioning pin rises with the transfer case housing to the vertical insertion range of the positioning waist-shaped hole.

[0006] It also includes a cylinder set on one side of the positioning base. After the housing positioning pin is inserted into the corresponding positioning waist-shaped hole, the cylinder cooperates with the positioning plate to clamp the transfer case housing from left to right.

[0007] As a preferred embodiment, the positioning waist-shaped holes are in multiple sets and do not interfere with each other.

[0008] As a preferred embodiment, the housing positioning pin is a cylindrical pin, and the end of it away from the transfer case housing is chamfered.

[0009] As a preferred embodiment, when the housing positioning pin passes through the corresponding positioning waist-shaped hole, there is no gap between the two in the width direction of the positioning waist-shaped hole.

[0010] As a preferred embodiment, the height of the replaceable shim is adapted to the model of the transfer case housing.

[0011] As a preferred embodiment, the positioning base is provided with a pin hole, and the replaceable shim plate is provided with a shim positioning pin that matches the pin hole.

[0012] As a preferred embodiment, the vertical reference surface of the transfer case housing extends outward with an outer edge, and a positioning groove adapted to the outer edge is formed between the replaceable shim plate and the positioning stand plate.

[0013] As a preferred embodiment, the positioning plate is provided with a clearance groove in the middle.

[0014] As a preferred embodiment, the lower end of the positioning plate is connected to the positioning base by a pin, and a side support is fixed on the positioning base. The side of the positioning plate facing away from the transfer case housing abuts against the side support.

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

[0016] To address the shortcomings of existing technologies, a transfer case housing positioning mechanism is provided, which, compared to existing positioning methods, offers the following advantages:

[0017] 1. When changing models, the horizontal positioning of the transfer case housing is achieved by the cooperation of the housing positioning pin and the positioning plate, and the vertical positioning of the transfer case housing is achieved by the replaceable shim plate, thereby keeping the transfer case housing at a predetermined height that is conducive to pressing.

[0018] 2. A cylinder is installed to clamp the transfer case housing from left to right in conjunction with the positioning plate, which can ensure stability during the pressing process;

[0019] 3. A replaceable shim is used for vertical positioning. This method provides stable positioning and is also low in cost. Multiple sets of non-interfering positioning slots are set on the positioning plate. The replaceable shim and multiple sets of positioning slots can meet the positioning requirements of different batches of transfer case housings.

[0020] 4. For transfer case housings with irregular shapes and mostly rough surfaces, when using a fixed-height replaceable shim plate for support, it is difficult for the housing locating pin to align with the locating hole of the locating plate. Therefore, a vertical locating slotted hole is provided, which allows the housing locating pin to have a vertical insertion range within the locating slotted hole, ensuring that the bottom surface of the transfer case housing can be stably supported by the replaceable shim plate and ensuring the stability of the press-fitting process. Attached Figure Description

[0021] 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 the utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 This is a front view of the entire utility model;

[0023] Figure 2 This is a side view of the positioning plate of this utility model;

[0024] Figure 3 This is a schematic diagram of the transfer case housing of this utility model;

[0025] Figure 4 This is a schematic diagram showing the assembly of the transfer case housing and the positioning plate of this utility model.

[0026] Figure 5 This is a schematic diagram of the replaceable shim plate of this utility model.

[0027] Reference numerals in the attached drawings: 1. Transfer case housing; 2. Housing positioning pin; 3. Positioning base; 4. Positioning plate; 401. Positioning slot; 5. Replaceable shim plate; 501. Shim plate positioning pin; 6. Cylinder; 7. Outer edge; 8. Positioning groove; 9. Clearance groove; 10. Side support. Detailed Implementation

[0028] The present invention will now be described in detail through exemplary embodiments. However, it should be understood that, without further description, elements, structures, and features in one embodiment may be advantageously incorporated into other embodiments.

[0029] It should be noted that, unless otherwise defined, the technical or scientific terms used herein should have the ordinary meaning understood by one of ordinary skill in the art to which this utility model pertains. The terms "a," "an," or "the," etc., used in this utility model patent application specification and claims do not express a quantity limitation, but rather indicate the presence of at least one; the terms "first," "second," and "third," as used herein, should not be considered as a limitation on the order of components, but are merely for distinguishing different components; the terms "comprising" or "including," etc., indicate that the elements or objects preceding "comprising" or "including" encompass the elements or objects listed following "comprising" or "including" and their equivalents, but do not exclude other elements or objects having the same function.

[0030] To more clearly describe the specific structural components of the transfer case housing positioning mechanism, in conjunction with the attached... Figure 1-5 This embodiment is described as follows:

[0031] like Figure 1 , Figure 4 As shown, a transfer case housing positioning mechanism includes a transfer case housing 1 and a positioning base 3. A housing positioning pin 2 is provided on the vertical reference surface of the transfer case housing 1. A positioning plate 4 is connected to the positioning base 3. A positioning oblong hole 401 adapted to the housing positioning pin 2 is provided on one side of the positioning plate 4. The positioning oblong hole 401 is vertically arranged so that the housing positioning pin 2 has a vertical insertion range within the positioning oblong hole 401. The transfer case housing 1 is an exemplary reference. Figure 3 ;

[0032] The positioning base 3 is equipped with a replaceable shim plate 5, which supports the bottom surface of the transfer case housing 1 and raises the transfer case housing 1 to a predetermined height. The housing positioning pin 2 rises with the transfer case housing 1 to the vertical insertion range of the positioning waist-shaped hole 401. When changing models, the horizontal positioning of the transfer case housing 1 is achieved by the cooperation of the housing positioning pin 2 and the positioning upright plate 4, and the vertical positioning of the transfer case housing 1 is achieved by the replaceable shim plate 5, thereby keeping the transfer case housing 1 at a predetermined height that is conducive to pressing.

[0033] For transfer case housings with irregular shapes and mostly rough surfaces, when the fixed-height replaceable shim plate 5 is used for support, the housing positioning pin 2 may not be able to align with the positioning hole of the positioning plate. Therefore, a vertical positioning waist-shaped hole 401 is provided. The housing positioning pin 2 has a vertical stroke in the positioning waist-shaped hole 401, ensuring that the bottom surface of the transfer case housing can be stably supported by the replaceable shim plate, thus ensuring the stability of the press-fitting process.

[0034] It also includes a cylinder 6 set on one side of the positioning base 3. After the housing positioning pin 2 is inserted into the corresponding positioning waist-shaped hole 401, the cylinder 6, together with the positioning plate 4, clamps the transfer case housing 1 from left to right. After the transfer case housing 1 is raised by the replaceable shim plate 5 and positioned with the positioning waist-shaped hole 401, the cylinder 6, together with the positioning plate 4, clamps the transfer case housing 1 from left to right. Then, a bearing is pressed into the top of the transfer case housing to ensure stability during the pressing process.

[0035] See Figure 2 The positioning plate 4 has a relief groove 9 in the middle, which can avoid the hole of the transfer case housing 1. The hole has an input shaft hole.

[0036] See Figure 2Multiple sets of positioning waist-shaped holes 401 are provided, and they do not interfere with each other. A replaceable shim 5 is used for vertical positioning, which provides stable positioning and is cost-effective. The multiple sets of non-interfering positioning waist-shaped holes 401 and replaceable shims 5 can meet the positioning requirements of different batches of transfer case housings. The height of the replaceable shim 5 is compatible with the model of the transfer case housing 1, so that after the transfer case housing 1 is raised by the corresponding replaceable shim 5, its upper surface is at the predetermined pressing height.

[0037] In the above embodiment, the housing positioning pin 2 is a cylindrical pin, and the end away from the transfer case housing 1 is chamfered. The chamfer facilitates the cylindrical pin entering the positioning waist-shaped hole 401.

[0038] To reduce lateral movement, the width dimensions of the housing positioning pin 2 and the positioning waist-shaped hole 401 can be designed to be the same, so that when the housing positioning pin 2 passes through the corresponding positioning waist-shaped hole 401, there is no gap between the two in the width direction of the positioning waist-shaped hole 401.

[0039] In the above embodiments, such as Figure 5 As shown, the positioning base 3 is provided with a pin hole, and the replaceable shim plate 5 is provided with a shim plate positioning pin 501 that matches the pin hole. When replacing the replaceable shim plate 5, the shim plate positioning pin 501 is locked in the pin hole of the positioning base 3 to prevent the replaceable shim plate 5 from shifting when the transfer case housing 1 is moved.

[0040] See Figure 4 The vertical reference surface of the transfer case housing 1 extends outward with an outer edge 7. A positioning groove 8 is formed between the replaceable shim plate 5 and the positioning upright plate 4 to fit the outer edge 7. The width of the positioning groove 8 is slightly larger than the thickness of the outer edge 7. When the housing positioning pin 2 and the positioning waist-shaped hole 401 are connected, the outer edge 7 is placed into the positioning groove 8 to improve the positioning speed and stability.

[0041] The lower end of the positioning plate 4 is connected to the positioning base 3 by a pin, which facilitates the quick replacement of the positioning plate 4. To ensure the stability of the positioning plate 4 in the working state, a side support 10 is fixed on the positioning base 3, and the side of the positioning plate 4 facing away from the transfer case housing 1 abuts against the side support 10.

[0042] The parts not described in detail in this embodiment are existing technologies.

[0043] It should be noted that although the present invention has been described through the above embodiments, there may be other various embodiments of the present invention. Without departing from the spirit and scope of the present invention, those skilled in the art can obviously make various corresponding changes and modifications to the present invention, but all such changes and modifications should fall within the scope of protection of the appended claims and their equivalents.

Claims

1. A transfer case housing positioning mechanism, comprising a transfer case housing (1) and a positioning base (3), wherein a housing positioning pin (2) is provided on the vertical reference surface of the transfer case housing (1), characterized in that: The positioning base (3) is connected to a positioning plate (4). The positioning plate (4) has a positioning waist-shaped hole (401) on one side that is adapted to the housing positioning pin (2). The positioning waist-shaped hole (401) is vertically arranged so that the housing positioning pin (2) has a vertical insertion range in the positioning waist-shaped hole (401). The positioning base (3) is provided with a replaceable shim plate (5). The replaceable shim plate (5) supports the bottom surface of the transfer case housing (1) and raises the transfer case housing (1) to a predetermined height. The housing positioning pin (2) rises with the transfer case housing (1) to the vertical insertion range of the positioning waist-shaped hole (401). It also includes a cylinder (6) set on one side of the positioning base (3). After the housing positioning pin (2) is inserted into the corresponding positioning waist-shaped hole (401), the cylinder (6) cooperates with the positioning plate (4) to clamp the transfer case housing (1) from left to right.

2. The transfer case housing positioning mechanism according to claim 1, characterized in that: The positioning waist-shaped hole (401) has multiple sets and does not interfere with each other.

3. The transfer case housing positioning mechanism according to claim 1, characterized in that: The housing positioning pin (2) is a cylindrical pin, and its end away from the transfer case housing (1) is chamfered.

4. The transfer case housing positioning mechanism according to claim 1, characterized in that: When the housing positioning pin (2) passes through the corresponding positioning waist-shaped hole (401), there is no gap between the two in the width direction of the positioning waist-shaped hole (401).

5. A transfer case housing positioning mechanism according to claim 1, characterized in that: The height of the replaceable shim plate (5) is compatible with the model of the transfer case housing (1).

6. The transfer case housing positioning mechanism according to claim 1, characterized in that: The positioning base (3) is provided with a pin hole, and the replaceable shim plate (5) is provided with a shim positioning pin (501) that is adapted to the pin hole.

7. A transfer case housing positioning mechanism according to claim 1, characterized in that: The vertical reference surface of the transfer case housing (1) extends outward with an outer edge (7), and a positioning groove (8) is formed between the replaceable shim plate (5) and the positioning plate (4) to fit the outer edge (7).

8. A transfer case housing positioning mechanism according to claim 1, characterized in that: The positioning plate (4) is provided with a clearance groove (9) in the middle.

9. A transfer case housing positioning mechanism according to claim 1, characterized in that: The lower end of the positioning plate (4) is connected to the positioning base (3) by a pin. A side support (10) is fixed on the positioning base (3). The side of the positioning plate (4) facing away from the transfer case housing (1) abuts against the side support (10).

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