Clutch gear shifting connecting structure

Abstract

A clutch gear-shifting connecting structure relates to the technical field of agricultural machinery parts, can be mounted on different gearboxes through angle adjustment of an operating handle and a shifting fork rod, is better in universality and comprises the operating handle and the shifting fork rod, and the lower end of the operating handle is connected with a spline sleeve in a welding or integral forming mode. Wherein a first threaded hole is formed in the tangential direction of the bottom of the spline sleeve, and a locking screw rod matched with the first threaded hole through threaded connection is arranged in the first threaded hole; the left end of the shifting fork rod is welded or directly machined into a spline shaft, and the spline shaft is matched with the spline sleeve.

Description

Technical Field

[0001] This utility model relates to the field of agricultural machinery parts technology, specifically to a clutch shifting connection structure. Background Technology

[0002] Agricultural machinery refers to all kinds of machinery used in crop cultivation and animal husbandry, as well as in the initial processing and handling of agricultural and livestock products. Agricultural machinery includes agricultural power machinery, farmland construction machinery, soil tillage machinery, planting and fertilization machinery, plant protection machinery, farmland irrigation and drainage machinery, crop harvesting machinery, agricultural product processing machinery, livestock machinery, and agricultural transportation machinery, etc.

[0003] Agricultural machinery gearboxes are mechanisms used to change the engine speed and torque. They can fix or change the transmission ratio between the output and input shafts in different gears. One important way gearboxes change gears is through the engagement and disengagement of the shift fork and the sliding sleeve. However, due to the wide variety of agricultural machinery and the differences in their sub-fields and functions, the structures of gearboxes also vary. As a result, the clutch shifting structures also differ greatly. Different clutch shifting structures need to be designed for each different gearbox, resulting in poor versatility. Utility Model Content

[0004] I. Technical problems to be solved

[0005] This invention addresses the shortcomings of existing technologies by proposing a clutch shifting connection structure. By adjusting the angles of the operating handle and shift fork, it can be installed on different gearboxes, thus improving its versatility.

[0006] II. Specific Technical Solutions

[0007] A clutch shifting connection structure includes an operating handle and a shift fork lever. One end of the operating handle is fixedly connected to a splined sleeve, and the splined sleeve has a first threaded hole tangentially thereon, with a corresponding locking screw provided in the first threaded hole. One end of the shift fork lever is provided with a splined shaft, which cooperates with the splined sleeve.

[0008] Implementation principle and working principle:

[0009] The principle of this solution is that one end of the operating handle is a splined sleeve, and one end of the shift fork is a splined shaft that mates with the splined sleeve. By setting the splined shaft and splined sleeve, the operating handle and shift fork can be engaged at different angles, thus making it suitable for different gearboxes for shifting and clutching. Through the cooperation of the first threaded hole and the locking screw, the operating handle and shift fork can be locked to prevent them from falling off and enhance the stability of their connection.

[0010] Preferably, an annular groove is provided circumferentially along the middle of the spline shaft, and when the locking screw is in the first threaded hole, part of the locking screw is located in the annular groove. The beneficial effect of this preferred embodiment is that by setting the annular groove, the locking screw is engaged with the middle of the spline shaft, which prevents the spline shaft from moving axially and provides a better anti-disengagement effect.

[0011] Preferably, the cross-section of the annular groove is arc-shaped, the cross-section of the annular groove is concentric with the center of the first threaded hole, and the diameter of the annular groove cross-section is the same as that of the first threaded hole. The beneficial effect of this preferred embodiment is that the setting of the center and size of the annular groove cross-section allows the locking screw to smoothly enter the annular groove and can engage the two sides of the annular groove, thereby making the locking effect better.

[0012] Preferably, the other end of the operating handle is provided with a connection hole.

[0013] Preferably, the middle part of the operating handle is bent to one side, and multiple mounting slots are provided at intervals on the shift fork. The advantage of this is that the operating handle can be machined for specific applications, which is less costly than the existing method of machining the entire shift fork. It also allows for the replacement of different operating handles, making it more versatile. The mounting slots facilitate the installation and fixing of the shift fork.

[0014] Preferably, the other end of the shift fork is a shifting section, which is perpendicular to the section where the spline shaft is located. An installation hole is provided in the axial direction of the shifting section, and a spring steel ball is provided at the end of the installation hole. The advantage of this preferred embodiment is that the spring steel ball can be well installed by setting the installation hole in the shifting section. While satisfying the engagement of the shifting section in different positions, it also facilitates the shifting fork and the shifting operation.

[0015] Preferably, the end of the shifting section is provided with a connecting cylinder, and the connecting cylinder has a second threaded hole in its axial direction for installing the shift fork head. The advantage of this preferred embodiment is that when it is necessary to control sliding tooth sleeves or other shifting components with different structures, different fork heads can be selected and installed in the second threaded hole, which effectively enhances its applicability and versatility.

[0016] Preferably, one end of the spline sleeve has an opening, which is arranged along the axial direction of the spline sleeve and separates the first threaded hole from the spline sleeve. The advantage of this preferred embodiment is that the opening facilitates the installation and locking of the shift fork lever.

[0017] The beneficial effects of this utility model are as follows:

[0018] 1. By setting the splined shaft of the shift fork lever and the splined sleeve of the operating handle, the operating handle and the shift fork lever can be engaged at different angles, thus allowing for different assembly methods to be selected according to different gearbox specifications, resulting in better applicability and versatility.

[0019] 2. The annular groove in the middle of the splined shaft can cooperate well with the locking screw in the first threaded hole, and can effectively lock the splined shaft into the annular groove.

[0020] 3. The opening at the bottom of the spline sleeve divides the bottom of the spline sleeve along the axis, which facilitates the installation of the spline shaft. On the other hand, the spline sleeve is reconnected by the locking screw, which can effectively ensure the connection strength and lock the spline shaft. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the clutch shifting connection structure of this utility model.

[0022] Figure 2 This is a cross-sectional schematic diagram of the clutch shifting connection structure of this utility model.

[0023] Figure 3 This is a side sectional view of the operating handle of the clutch shifting connection structure of this utility model.

[0024] Explanation of reference numerals in the attached figures:

[0025] Operating handle 1, shift fork 2, spline sleeve 101, first threaded hole 102, locking screw 103, connecting hole 104, spline shaft 201, annular groove 202, shifting section 203, mounting hole 204, spring steel ball 205, second threaded hole 206. Detailed Implementation

[0026] The preferred embodiments of this utility model will now be described in detail with reference to the accompanying drawings, so that the advantages and features of this utility model can be more easily understood by those skilled in the art, thereby providing a clearer and more definite definition of the scope of protection of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the scope of protection of this utility model.

[0027] like Figure 1-3 As shown:

[0028] A clutch shifting connection structure includes an operating handle and a shift fork 2. The lower end of the operating handle 1 is connected to a splined sleeve 101 by welding or integral molding. The bottom of the splined sleeve 101 has a first threaded hole 102 tangentially opened, and a locking screw 103 is provided in the first threaded hole 102 for threaded connection. The left end of the shift fork 2 is welded or directly machined into a splined shaft 201, which is engaged with the splined sleeve 101.

[0029] In specific implementation, such as Figure 2 An annular groove 202 is provided circumferentially along the middle of the spline shaft 201. When the locking screw 103 is in the threaded hole, the upper part of the locking screw 103 is located in the annular groove 202. Specifically, the cross-section of the annular groove 202 is arc-shaped, and the cross-section of the annular groove 202 is concentric with the center of the first threaded hole 102. The diameter of the cross-section of the annular groove 202 is the same as that of the first threaded hole 102. The advantage of this is that by opening the annular groove 202, the locking screw 103 can engage with the middle of the spline shaft 201, preventing the spline shaft 201 from moving axially and improving the anti-disengagement effect. The setting of the center and size of the cross-section of the annular groove 202 allows part of the locking screw 103 to smoothly enter the annular groove 202 and better engage with both sides of the annular groove 202, resulting in a better locking effect.

[0030] In implementation, a connection hole 104 is provided at the upper end of the operating handle 1. The connection hole 104 facilitates driving the operating handle 1 through the connection hole 104. In implementation, to improve the versatility of the operating handle, the middle of the operating handle 1 is bent to one side, and multiple mounting slots are provided at intervals on the shift fork 2. The advantage of this is that the operating handle can be machined for specific applications, which is less costly than the existing method of machining the entire shift fork, and different operating handles can be replaced, resulting in greater versatility. The mounting slots allow for better installation of the shift fork 2. In implementation, an opening is provided at the bottom of the spline sleeve 101, which cuts off the first threaded hole 102 and the spline sleeve 101. This opening facilitates the installation of the shift fork 2.

[0031] In specific implementation, such as Figure 1 and 2 The right end of the shift fork 2 is the shift section 203, which is perpendicular to the end of the spline shaft 201. An axial mounting hole 204 is provided in the shift section 203, and a spring steel ball 205 is provided inside the mounting hole 204. By providing the mounting hole 204 in the shift section 203, the spring steel ball 205 can be installed well. The placement of the spring steel ball 205 can satisfy the engagement of the shift section in different positions, and also facilitate the shifting of the shift fork, thus facilitating gear shifting.

[0032] In practice, a connecting cylinder is integrally formed at the end of the shifting section 203, and a second threaded hole 206 is provided axially on the connecting cylinder. The second threaded hole 206 can accommodate the installation of different shift fork heads. When it is necessary to control sliding tooth sleeves or other shifting components with different structures, different fork heads can be installed in the second threaded hole 206, which effectively enhances its applicability and versatility.

[0033] Implementation principle and working principle:

[0034] The principle of this solution is that one end of the operating handle 1 is a splined sleeve 101, and one end of the shift fork 2 is a splined shaft 201 that mates with the splined sleeve 101. By setting the splined shaft 201 and the splined sleeve 101, the operating handle 1 and the shift fork 2 can be engaged at different angles, thus making it suitable for shifting and clutching different gearboxes. By cooperating with the first threaded hole 102 and the locking screw 103, the operating handle 1 and the shift fork 2 can be locked to prevent them from falling off and enhance the stability of their connection.

[0035] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims.

Claims

1. A clutch shifting connection structure, comprising an operating handle (1) and a shift fork lever (2), characterized in that: One end of the operating handle (1) is fixedly connected to a splined sleeve (101), and the splined sleeve (101) has a first threaded hole (102) tangentially opened, and the first threaded hole (102) is provided with a matching locking screw (103); one end of the shift fork (2) is provided with a splined shaft (201), and the splined shaft (201) is matched with the splined sleeve (101).

2. The clutch shifting connection structure according to claim 1, characterized in that: An annular groove (202) is provided circumferentially along the middle of the spline shaft (201). When the locking screw (103) is in the first threaded hole (102), part of the locking screw (103) is located in the annular groove (202).

3. The clutch shifting connection structure according to claim 2, characterized in that: The cross-section of the annular groove (202) is arc-shaped. The cross-section of the annular groove (202) is concentric with the center of the first threaded hole (102), and the diameter of the cross-section of the annular groove (202) is the same as that of the first threaded hole (102).

4. The clutch shifting connection structure according to claim 1, characterized in that: The other end of the operating handle (1) is provided with a connection hole (104).

5. The clutch shifting connection structure according to claim 4, characterized in that: The middle part of the operating handle (1) is bent to one side, and the upper surface of the shift fork (2) is provided with multiple mounting grooves at intervals.

6. The clutch shifting connection structure according to claim 1, characterized in that: The other end of the shift fork (2) is a shift section (203), which is perpendicular to the section where the spline shaft (201) is located. An installation hole (204) is provided in the axial direction of the shift section (203), and a spring steel ball (205) is provided at the end of the installation hole (204) away from the spline shaft (201).

7. The clutch shifting connection structure according to claim 6, characterized in that: The end of the actuating section (203) is provided with a connecting cylinder, and the connecting cylinder has a second threaded hole (206) in the axial direction, which is used to install the shift fork head.

8. The clutch shifting connection structure according to claim 1, characterized in that: One end of the spline sleeve (101) has an opening, which is arranged along the axial direction of the spline sleeve (101) and separates the first threaded hole (102) from the spline sleeve (101).

Images