Cylinder sleeve press-fitting positioning mechanism

Abstract

The utility model belongs to the technical field of gearbox cylinder sleeve press fitting, and particularly relates to a positioning mechanism for fixing a gearbox during cylinder sleeve press fitting, which comprises a press fitting seat, a positioning plate and a positioning rod, through holes are arranged on the press fitting seat and the positioning plate, and the positioning rod penetrates through the through holes to connect the press fitting seat with the positioning plate. Wherein after the positioning rod is connected with the press-fitting seat and the positioning plate, the tail part of the positioning rod forms a positioning bulge on the positioning plate. The positioning rod can enter from the through hole of the press-fitting seat and then come out from the through hole of the positioning plate, and the part, protruding out of the positioning plate, of the positioning rod forms a positioning protrusion, so that the positioning rod plays a role in fixedly connecting the press-fitting seat and the positioning plate, and the formed positioning protrusion can well fix a press-fitted gearbox on the positioning plate; and sliding in the press-fitting process is prevented. The device is simple in structure, reasonable in design and convenient to use.

Description

Technical Field

[0001] The utility model belongs to the technical field of transmission cylinder liner press-fitting, and particularly relates to a positioning mechanism for fixing a transmission during cylinder liner press-fitting. Background Art

[0002] The transmission is a very important component in an automobile or agricultural machinery, mainly used to change the speed ratio and motion direction of the vehicle. During the assembly of the transmission, it is necessary to install the cylinder liner into the shaft hole of the transmission. The technical requirements for cylinder liner assembly are very high. Poor assembly will cause oil leakage of the cylinder liner, which will directly affect the life, power, etc. of the transmission. Therefore, it is necessary to fix the transmission during cylinder liner assembly to prevent it from sliding during the assembly process.

[0003] Currently, in the existing technology during cylinder liner assembly, the cylinder liner is mainly assembled through a specific assembly machine or the operator manually pushes the cylinder liner into the shaft hole of the transmission. However, the above methods of installing the cylinder liner have the phenomenon that the transmission slides due to the externally applied force. At this time, the cylinder liner cannot be accurately assembled into the shaft hole of the transmission, which may affect the assembly effect and then cause the phenomenon of oil leakage of the cylinder liner. Therefore, it is urgent to improve the traditional assembly method. Summary of the Utility Model

[0004] Aiming at the above defects, the utility model discloses a cylinder liner press-fitting positioning mechanism, which mainly solves the problem that the transmission is prone to sliding during traditional cylinder liner press-fitting, resulting in poor cylinder liner assembly effect.

[0005] To achieve the above purpose, the cylinder liner press-fitting positioning mechanism provided by the utility model includes a press-fitting seat, a positioning plate and a positioning rod. Through holes are provided on both the press-fitting seat and the positioning plate. The positioning rod passes through the through holes to connect the press-fitting seat and the positioning plate. After the positioning rod connects the press-fitting seat and the positioning plate, a positioning protrusion is formed on the positioning plate.

[0006] Beneficial effects: In this solution, through holes are provided on both the press-fitting seat and the positioning plate, and the positioning rod is adapted to the through holes. The positioning rod can enter from the through hole of the press-fitting seat and then come out from the through hole of the positioning plate. The protruding part on the positioning plate forms a positioning protrusion. In this way, the positioning rod not only plays a role in fixedly connecting the press-fitting seat and the positioning plate, but also the formed positioning protrusion can well fix the transmission to be press-fitted on the positioning plate to prevent it from sliding during the press-fitting process.

[0007] Preferably, there are several positioning rods and through holes, and all the positioning rods can be adapted to all the through holes.

[0008] Beneficial effects: There are multiple positioning rods and through holes in this solution. Firstly, multiple positioning protrusions can better position the gearbox. Secondly, the positioning rods can select corresponding through holes according to the distance between the positioning holes on the gearbox base, forming appropriate positioning protrusions to fix different gearboxes.

[0009] Preferably, the length of the positioning protrusion is 3 - 5 cm.

[0010] Beneficial effects: The positioning protrusion needs to pass through the positioning holes on the gearbox base to achieve the positioning of the gearbox. The longer length of the positioning protrusion can not only enhance the positioning effect of the gearbox but also fix some gearboxes with larger sizes and deeper positioning holes.

[0011] Preferably, the connection mode between the positioning rod and the through hole is threaded connection.

[0012] In this solution, the connection mode between the positioning rod and the through hole adopts threaded connection, which is convenient for the connection and disassembly of the positioning rod and the through hole, and can also be quickly achieved by spiral means when a new positioning protrusion needs to be formed. Description of the Drawings

[0013] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following will briefly introduce the drawings required for use in the embodiments or the description of the prior art. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0014] Figure 1 It is a structural schematic diagram of the cylinder liner press-fitting positioning mechanism of the present invention and the gearbox to be press-fitted;

[0015] Figure 2 It is a structural schematic diagram of the cylinder liner press-fitting positioning mechanism of the present invention;

[0016] Figure 3 It is another structural schematic diagram of the cylinder liner press-fitting positioning mechanism of the present invention.

[0017] Main reference numeral description: 1. Press-fitting seat; 2. Positioning plate; 3. Positioning rod; 4. Through hole; 5. Gearbox; 51. Positioning hole. Detailed Embodiment

[0018] The following details the embodiments of the present invention. The examples of the embodiments are shown in the drawings, where the same or similar reference numerals represent the same or similar elements or elements with the same or similar functions throughout. The embodiments described below with reference to the drawings are exemplary and are intended to explain the embodiments of the present invention and should not be construed as limiting the present invention.

[0019] In the description of the embodiments of the present utility model, it should be understood that the orientation or positional relationships indicated by the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. are based on the orientation or positional relationships shown in the drawings, and are only for the convenience of describing the embodiments of the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present utility model.

[0020] In addition, the terms "first" and "second" are only used for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of the said features. In the description of the embodiments of the present utility model, the meaning of "a plurality" is two or more, unless otherwise specifically defined.

[0021] As an embodiment of the present utility model:

[0022] The cylinder liner press-fitting positioning mechanism in this embodiment mainly includes a press-fitting seat 1, a positioning plate 2, and a positioning rod 3.

[0023] Referring to Figures 1 to 3 , the main function of the press-fitting seat 1 is to carry the positioning plate 2 so that it can be stably placed on a horizontal plane. The function of the positioning plate 2 is to place the gearbox 5 to be press-fitted, which is smaller than the press-fitting seat 1. During assembly, it fits on the top of the press-fitting seat 1 and then is assembled and connected through the positioning rod 3. A plurality of through holes 4 are provided on both the press-fitting seat 1 and the positioning plate 2, and the through holes 4 can all be adapted to the positioning rod 3. After aligning the holes of the press-fitting seat 1 and the positioning plate 2, the positioning rod 3 can pass through the through hole 4 of the press-fitting seat 1. After completely passing through the through hole 4 of the press-fitting seat 1, the positioning rod 3 starts to pass through the through hole 4 of the positioning plate 2. After passing through, the part protruding from the positioning plate 2 forms a positioning protrusion. In this way, the positioning rod 3 serves two purposes: one is to fixedly connect the press-fitting seat 1 and the positioning plate 2, and the other is that the formed positioning protrusion can firmly fix the gearbox 5 to be press-fitted on the positioning plate 2 to prevent it from sliding during the press-fitting process.

[0024] A plurality of positioning rods 3 can be provided, so that a plurality of positioning protrusions can be formed on the positioning plate 2 to fix the gearbox 5. Some gearboxes 5 are larger in size, and their bases are also large, so the spacing of the positioning holes 51 on the base is large. Therefore, the spacing of the limit holes on the bases of different gearboxes 5 is different. In view of this situation, the positioning rod 3 can select the appropriate through hole 4 to connect according to the spacing of the positioning holes 51 on the positioning plate 2, and adjust the spacing of the limit protrusions to adapt to different gearboxes 5.

[0025] In this embodiment, the height of the positioning protrusion formed by the positioning rod 3 on the positioning plate 2 is 3 to 5 cm. The positioning protrusion needs to pass through the positioning hole 51 on the base of the transmission 5 to achieve the positioning of the transmission 5. The longer length of the positioning protrusion can not only enhance the positioning effect of the transmission 5, but also fix some transmissions 5 with larger sizes and deeper positioning holes 51.

[0026] In addition, the positioning rod 3 can be a threaded positioning rod, and the through hole 4 can be set as a threaded hole. The two are connected by a threaded connection, which facilitates the disassembly and connection between the two. Another advantage is that the height of the limiting protrusion can be adjusted by using a threaded connection. For a transmission 5 with a larger size and a deeper positioning hole 51, the threaded positioning rod can be screwed deeper to make the height of the limiting protrusion higher to adapt to the transmission.

[0027] When different models of transmissions need to be press-fitted, the device can be adjusted according to the model of the transmission to be press-fitted. First, place the press-fitting plate on a horizontal plane, then place the positioning plate 2 on the press-fitting plate and align the through holes 4 of the two; then observe the spacing of the positioning holes 51 of the transmission 5 to be press-fitted, and then screw the positioning rods 3 into different through holes 4 respectively to form positioning protrusions adapted to the positioning holes 51, and then place the transmission 5 on the positioning plate 2 for fixed positioning. If the transmission 5 to be press-fitted needs to be replaced, the positioning rods 3 can be disassembled and the through holes 4 can be reselected to form new positioning protrusions.

[0028] In summary, the cylinder liner press-fitting positioning mechanism disclosed in this application can position the transmission to be press-fitted to prevent it from sliding during press-fitting, and can also fix and position different transmissions by adjusting the spacing of the limiting protrusions by screwing the spiral positioning rods into different through holes. This instrument has a simple structure, reasonable design, and convenient use.

[0029] The above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A cylinder sleeve press-fitting positioning mechanism, comprising a press-fitting seat (1), a positioning plate (2) and a positioning rod (3), characterized in that: The press-fit seat (1) and the positioning plate (2) are both provided with through holes (4), and the positioning rod (3) passes through the through holes (4) to connect the press-fit seat (1) and the positioning plate (2), wherein the positioning rod (3) forms a positioning protrusion on the positioning plate (2) after connecting the press-fit seat (1) and the positioning plate (2).

2. The cylinder sleeve press-fitting positioning mechanism according to claim 1, characterized in that: There are a plurality of positioning rods (3) and through holes (4), and the positioning rods (3) can fit into all the through holes (4).

3. The cylinder sleeve press-fitting positioning mechanism according to claim 1, characterized in that: The height of the positioning protrusion is 3-5 cm.

4. The cylinder sleeve press-fitting positioning mechanism according to claim 1, characterized in that: The positioning rod (3) and the through hole (4) are connected in a threaded manner.

Images