Transmission shaft fork

Abstract

The utility model discloses a transmission shaft fork which comprises a shaft body, a shaft fork body is arranged on the side face of the shaft body, a positioning hole is formed in the shaft body, and a universal joint is installed in the shaft fork body. A spline shaft is arranged on the side face, close to the shaft body, of the shaft fork body and comprises a positioning shaft, the positioning shaft is installed at the end, away from the shaft fork body, of the spline shaft, a plurality of inserting holes are formed in the spline shaft, a positioning bolt is installed between the shaft body and the spline shaft, and the end of the positioning bolt penetrates through the positioning hole and the inserting holes. And the tail end of the positioning bolt is in threaded connection with a positioning nut. The transmission shaft fork is provided with the shaft body, the positioning bolt and the spline shaft, the spline shaft on the side face of the shaft fork body is inserted into the shaft body, and the distance between the shaft fork body and the shaft body is adjusted by inserting the positioning bolt into the positioning hole and penetrating through the insertion holes in different transverse positions in the positioning shaft. And the whole shaft body assembly can be more flexibly applied to more equipment, and the applicability of the device is improved.

Description

Technical Field

[0001] This utility model relates to the field of transmission shaft technology, specifically to a transmission shaft fork. Background Technology

[0002] The driveshaft is an important component in automobiles or other moving mechanical equipment, used to transmit engine power. The driveshaft is generally connected to a driveshaft fork and a universal joint to change the transmission angle during transmission.

[0003] Utility model patent with publication number CN211550319U discloses a mid-rear axle driveshaft, which includes a splined shaft fork and a rotating part. The splined shaft fork and the rotating part are connected by a spline to transmit torque. The outer end of the splined shaft fork is provided with a first universal joint, and the outer end of the rotating part is provided with a second universal joint. The rotating part is provided with a keyway inside, and the splined shaft fork can move along the keyway on the rotating shaft to adjust the length of the mid-rear axle driveshaft.

[0004] However, there are still some shortcomings in the above technical solution: In the above technical solution, the spline shaft fork is connected to the rotating part through the connecting part and the spline part, and the connection is protected by the protective plate. However, it cannot adjust the distance between the spline shaft fork and the rotating part. When vehicles and mechanical equipment are assembled, certain errors will occur. The inability to adjust the distance may lead to inconvenience in installation. Utility Model Content

[0005] The purpose of this utility model is to provide a drive shaft fork to solve the problem mentioned in the background art that certain errors may occur during the assembly of vehicles and mechanical equipment, and the inability to adjust the spacing may lead to inconvenience in installation.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a drive shaft fork, comprising a shaft body,

[0007] The side of the shaft is provided with a shaft fork body, the shaft is provided with a positioning hole, and a universal joint is installed in the shaft fork body;

[0008] The fork body has a spline shaft on the side near the shaft body, and the spline shaft includes a positioning shaft. The positioning shaft is installed at the end of the spline shaft away from the fork body, and several insertion holes are opened on the spline shaft. A positioning bolt is installed between the shaft body and the spline shaft, and the end of the positioning bolt passes through the positioning hole and the insertion hole. The end of the positioning bolt is threaded with a positioning nut.

[0009] By adopting the above technical solution, during use, the distance between the shaft fork body and the shaft body can be adjusted by sliding the spline shaft within the shaft body. Then, the positioning bolt passes through the positioning hole and the positioning shaft to limit the positioning of the shaft body, the shaft fork body and the entire spline shaft. The positioning nut is used to achieve a fixing effect. Then, the shielding cylinder slides towards the shaft fork body to shield the gap between the shaft fork body and the shaft body.

[0010] As a further embodiment of this utility model: a shielding cylinder is sleeved on the outer side of the shaft body, and the end of the shielding cylinder near the shaft fork body is inserted into the mounting ring groove opened on the side wall of the shaft fork body.

[0011] By adopting the above technical solution, during use, the gap between the shaft and the shaft fork body is blocked by inserting the shielding cylinder into the shaft fork body.

[0012] As a further embodiment of this utility model: a receiving groove is provided on the side of the mounting ring groove inside the shaft fork body, and a wedge block is installed in the receiving groove by a spring. A pull rod is installed on the side wall of the wedge block, and the top of the pull rod penetrates through the shaft fork body.

[0013] By adopting the above technical solution, when the shielding cylinder is inserted into the mounting ring groove, the inclined surface on the side of the wedge block is lifted up. When the wedge block is aligned with the limiting groove, the spring drives the wedge block to be inserted into the limiting groove. When it is necessary to remove the shielding cylinder, the wedge block can be pulled out of the limiting groove by pulling the lever outward.

[0014] As a further embodiment of this utility model, a limiting groove is provided on the outer side of the shielding cylinder at the position aligned with the wedge block.

[0015] By adopting the above technical solution, the positioning effect of the shielding cylinder is achieved by inserting a wedge block into the limiting groove during use.

[0016] As a further embodiment of this utility model, the outer sides of the shaft body, the shaft fork body, and the spline shaft are all coated with a wear-resistant coating.

[0017] By adopting the above technical solution, the shaft body, shaft fork body and spline shaft as a whole can be effectively protected.

[0018] Compared with the prior art, the beneficial effects of this utility model are: the transmission shaft fork,

[0019] Equipped with a shaft body, positioning bolts, and a splined shaft, the splined shaft on the side of the shaft fork body is inserted into the shaft body. The positioning bolts are inserted into positioning holes and pass through insertion holes at different lateral positions on the positioning shaft to adjust the distance between the shaft fork body and the shaft body. This allows the overall shaft assembly to be used more flexibly in more equipment, improving the applicability of the device.

[0020] In addition, the drive shaft fork is also equipped with a shielding cylinder, a wedge block and a spring. The shielding cylinder is inserted into the mounting ring groove, and the spring drives the wedge block to lock the position of the shielding cylinder, thereby shielding the connection position between the spline shaft and the shaft fork body and preventing foreign objects from entering. Attached Figure Description

[0021] Figure 1 This is a front view structural diagram of the present invention;

[0022] Figure 2 This is a cross-sectional structural diagram of the present invention;

[0023] Figure 3 This utility model Figure 2 Enlarged structural diagram at point A in the middle.

[0024] In the diagram: 1. Shaft body; 101. Positioning hole; 2. Shaft fork body; 201. Mounting ring groove; 202. Storage groove; 3. Universal joint; 4. Covering cylinder; 401. Limiting groove; 5. Positioning bolt; 501. Positioning nut; 6. Splined shaft; 601. Positioning shaft; 602. Insertion hole; 7. Wedge block; 8. Pull rod; 9. Spring. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] Please see Figure 1-3 This utility model provides a technical solution: a drive shaft fork, including a shaft body 1.

[0027] The side of the shaft body 1 is provided with a shaft fork body 2, and a positioning hole 101 is provided on the shaft body 1. A universal joint 3 is installed inside the shaft fork body 2.

[0028] A splined shaft 6 is provided on the side of the shaft body 2 near the shaft body 1. The splined shaft 6 includes a positioning shaft 601. The positioning shaft 601 is installed at the end of the splined shaft 6 away from the shaft body 2. Several insertion holes 602 are opened on the splined shaft 6. A positioning bolt 5 is installed between the shaft body 1 and the splined shaft 6. The end of the positioning bolt 5 passes through the positioning hole 101 and the insertion hole 602. The end of the positioning bolt 5 is threaded with a positioning nut 501.

[0029] Specifically, the shaft fork body 2, the shielding cylinder 4, and the spline shaft 6 are mirror-mounted on the other end of the shaft body 1.

[0030] Please see Figure 2and Figure 3 Furthermore, a shielding cylinder 4 is sleeved on the outer side of the shaft body 1, and the end of the shielding cylinder 4 near the shaft fork body 2 is inserted into the mounting ring groove 201 opened on the side wall of the shaft fork body 2.

[0031] Please see Figure 3 Furthermore, a storage groove 202 is provided on the side of the mounting ring groove 201 inside the shaft fork body 2, and a wedge block 7 is installed in the storage groove 202 by a spring 9. A pull rod 8 is installed on the side wall of the wedge block 7, and the top of the pull rod 8 penetrates through the shaft fork body 2.

[0032] Please see Figure 3 Furthermore, a limiting groove 401 is provided on the outer side of the shielding cylinder 4 at the position aligned with the wedge block 7.

[0033] Please see Figure 1 and Figure 2 Furthermore, the outer sides of the shaft body 1, the shaft fork body 2, and the spline shaft 6 are all coated with a wear-resistant coating.

[0034] Working principle: When using this drive shaft fork, the distance between the fork body 2 and the shaft body 1 can be adjusted by sliding the splined shaft 6 within the shaft body 1. Then, the positioning bolt 5 passes through the positioning hole 101 and the positioning shaft 601 to limit the overall positioning of the shaft body 1, the fork body 2 and the splined shaft 6, and the positioning nut 501 is used to achieve a fixing effect. Then, the blocking cylinder 4 slides towards the fork body 2 to block the gap between the fork body 2 and the shaft 1. When it is necessary to remove the blocking cylinder 4, the pull rod 8 can be pulled outward. The contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0035] The terms “center,” “longitudinal,” “lateral,” “front,” “rear,” “left,” “right,” “vertical,” “horizontal,” “top,” “bottom,” “inner,” and “outer,” etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are merely simplified descriptions for the convenience of describing this utility model and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting the scope of protection of this utility model.

[0036] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A drive shaft fork, comprising a shaft body (1), characterized in that: The shaft (1) has a shaft fork body (2) on its side, and a positioning hole (101) is provided on the shaft (1). A universal joint (3) is installed inside the shaft fork body (2). The shaft fork body (2) has a spline shaft (6) on the side near the shaft body (1), and the spline shaft (6) includes a positioning shaft (601). The positioning shaft (601) is installed at the end of the spline shaft (6) away from the shaft fork body (2), and a plurality of insertion holes (602) are opened on the spline shaft (6). A positioning bolt (5) is installed between the shaft body (1) and the spline shaft (6), and the end of the positioning bolt (5) passes through the positioning hole (101) and the insertion hole (602). The end of the positioning bolt (5) is threadedly connected to a positioning nut (501).

2. The drive shaft fork according to claim 1, characterized in that: The outer side of the shaft (1) is fitted with a shielding cylinder (4), and the end of the shielding cylinder (4) near the shaft fork body (2) is inserted into the mounting ring groove (201) opened on the side wall of the shaft fork body (2).

3. A drive shaft fork according to claim 2, characterized in that: The shaft fork body (2) has a storage groove (202) on the side of the mounting ring groove (201), and a wedge block (7) is installed in the storage groove (202) by a spring (9). A pull rod (8) is installed on the side wall of the wedge block (7), and the top of the pull rod (8) penetrates the shaft fork body (2).

4. A drive shaft fork according to claim 3, characterized in that: A limiting groove (401) is provided on the outer side of the shielding cylinder (4) at the position aligned with the wedge block (7).

5. A drive shaft fork according to claim 1, characterized in that: The outer sides of the shaft (1), shaft fork body (2) and spline shaft (6) are all coated with a wear-resistant coating.

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