Transmission intermediate shaft capable of preventing jamming

Abstract

The utility model relates to the technical field of transmission intermediate shafts, and discloses a transmission intermediate shaft capable of preventing locking, which comprises a shaft body, connecting splines are fixed at two ends of the shaft body, and a protective component for protecting the connecting splines is arranged on the shaft body. A lubricating assembly for lubricating the connecting spline is arranged on the protection assembly, the protection assembly comprises a threaded rod, the threaded rod is rotationally installed on the inner side of the shaft body, and a rotary button is fixed to the top of the threaded rod; the threaded sleeve is installed on the inner wall of the shaft body in a sliding mode. According to the transmission intermediate shaft capable of preventing jamming, in order to prevent the connecting position of the intermediate shaft from being jammed, the threaded rod, the rotary knob, the threaded sleeve, the connecting block, the movable rod and the protective cover are arranged, after the intermediate shaft is connected, the protective cover can shield and protect a connecting spline, and the phenomenon that impurities enter the connecting position, and jamming is likely to happen is prevented.

Description

Technical Field

[0001] The utility model relates to the technical field of a transmission intermediate shaft, in particular to a transmission intermediate shaft capable of preventing jamming. Background Art

[0002] The intermediate shaft is a shaft in the car's gearbox. The shaft itself is integrated with the gear. Its function is to connect the first shaft and the second shaft. By changing the shift lever, it can choose to mesh with different gears so that the two shafts can output different speeds, directions and torques.

[0003] The existing transmission intermediate shaft does not have the function of protecting the connecting splines at both ends of the intermediate shaft, which may easily cause impurities to enter the connecting splines when the intermediate shaft is in use, and may cause jamming, affecting the subsequent transmission of the intermediate shaft. In view of this, a transmission intermediate shaft that can prevent jamming is proposed. Utility Model Content

[0004] The purpose of the utility model is to provide a transmission intermediate shaft which can prevent jamming, so as to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above object, the utility model provides the following technical solution: a transmission intermediate shaft capable of preventing jamming, comprising a shaft body, connecting splines are fixed at both ends of the shaft body, a protection component for protecting the connecting splines is arranged on the shaft body, a lubrication component for lubricating the connecting splines is arranged on the protection component, and the protection component comprises:

[0006] A threaded rod, the threaded rod is rotatably mounted on the inner side of the shaft body, and a knob is fixed on the top of the threaded rod;

[0007] A threaded sleeve is slidably mounted on the inner wall of the shaft body.

[0008] Preferably, a connecting block is slidably mounted on the inner wall of the shaft body, and a protective cover is fixed on the outer surface of the connecting block.

[0009] Preferably, a movable rod is hinged on the threaded sleeve, and one end of the movable rod away from the threaded sleeve is hinged on the connecting block.

[0010] Preferably, the protective covers are provided in two groups, and the two groups of protective covers are symmetrically arranged with the center line of the shaft in the vertical direction as the axis of symmetry. By arranging a threaded rod, a knob, a threaded sleeve, a connecting block, a movable rod and a protective cover, when the intermediate shaft is connected, the connecting splines can be shielded and protected by the protective cover to prevent impurities from entering the connection, which may easily cause jamming.

[0011] Preferably, the lubrication assembly comprises an oil groove, the oil groove is provided on the protective cover, an oil filling hole is provided on the inner side of the protective cover, and a sealing ring is slidably mounted on the inner wall of the oil groove.

[0012] Preferably, a push rod passes through the protective cover and is slidably connected at the penetration point, a push block is fixed to one end of the push rod, a hinged rod is hinged to the other end of the push rod, the end of the hinged rod away from the push rod is hinged to the sealing ring, a return spring is fixed to the bottom of the push block, and the bottom of the return spring is fixed to the outer wall of the protective cover, by arranging an oil groove, an oil filling hole, a push rod, a push block, a sealing ring and a hinged rod, when the protective cover blocks the connecting spline, the lubrication component can be used to add lubricating oil to the connecting spline for lubrication.

[0013] Compared with the prior art, the utility model provides a transmission intermediate shaft that can prevent jamming, and has the following beneficial effects:

[0014] 1. The anti-stuck transmission intermediate shaft is provided with a threaded rod, a knob, a threaded sleeve, a connecting block, a movable rod and a protective cover to prevent the intermediate shaft from being stuck at its connection. When the intermediate shaft is connected, the connecting spline can be shielded and protected by the protective cover to prevent impurities from entering the connection, which may easily cause the phenomenon of sticking.

[0015] 2. The anti-stuck transmission intermediate shaft is provided with an oil groove, an oil filling hole, a push rod, a push block, a sealing ring and a hinged rod in order to make the connection of the intermediate shaft to transmit more smoothly. When the protective cover blocks the connection spline, the lubrication component can be used to add lubricating oil to the connection spline for lubrication. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the overall cross-sectional structure of the utility model;

[0018] Figure 3 For this utility model Figure 2 Schematic diagram of the enlarged structure of B.

[0019] In the figure: 1. shaft body; 2. connecting spline; 3. protective assembly; 31. threaded rod; 32. knob; 33. threaded sleeve; 34. connecting block; 35. movable rod; 36. protective cover; 4. lubrication assembly; 41. oil groove; 42. oil filling hole; 43. push rod; 44. push block; 45. reset spring; 46. sealing ring; 47. hinged rod. DETAILED DESCRIPTION

[0020] like Figure 1-Figure 3As shown, the utility model provides a technical solution: a transmission intermediate shaft capable of preventing jamming, comprising a shaft body 1, connecting splines 2 are fixed at both ends of the shaft body 1, and the connecting splines 2 can be connected to external transmission equipment, a protection component 3 for protecting the connecting splines 2 is arranged on the shaft body 1, and a lubrication component 4 for lubricating the connecting splines 2 is arranged on the protection component 3.

[0021] Specifically, the protection assembly 3 includes a threaded rod 31, a knob 32, a threaded sleeve 33, a connecting block 34, a movable rod 35 and a protective cover 36; the threaded rod 31 is rotatably mounted on the inner side of the shaft body 1, and the top of the threaded rod 31 is fixed with a knob 32; the threaded sleeve 33 is slidably mounted on the inner wall of the shaft body 1, and the inner wall of the shaft body 1 is slidably mounted with a connecting block 34, and the outer surface of the connecting block 34 is fixed with a protective cover 36, and the connection of the spline 2 can be shielded and protected by setting the protective cover 36, and the movable rod 35 is hinged on the threaded sleeve 33, and the movable rod 35 is away from the threaded sleeve 3 One end of 3 is hinged on the connecting block 34, and two groups of protective covers 36 are provided, and the two groups of protective covers 36 are symmetrically arranged with the center line of the shaft body 1 in the vertical direction as the symmetry axis. When connected through the connecting spline 2, by turning the knob 32 forward, the threaded sleeve 33 moves downward to squeeze the movable rod 35, so that the movable rod 35 rotates at the hinge, which can push the two groups of connecting blocks 34 away from each other, and the two groups of protective covers 36 away from each other to shield and protect the connecting spline 2, so as to prevent impurities from entering the connecting spline 2, causing the phenomenon of jamming, and affecting the subsequent transmission operation.

[0022] The specific lubrication assembly 4 includes an oil groove 41, an oil filling hole 42, a push rod 43, a push block 44, a return spring 45, a sealing ring 46 and a hinge rod 47; the oil groove 41 is provided on the protective cover 36, and the lubricating oil can be stored by providing the oil groove 41, and the inner side of the protective cover 36 is provided with an oil filling hole 42, and the lubricating oil can be added to the connecting spline 2 for lubrication by providing the oil filling hole 42, and the inner wall of the oil groove 41 is slidably installed with a sealing ring 46, and the oil filling hole 42 can be sealed by providing the sealing ring 46, and the bottom of the push block 44 is provided with a sealing ring 46. A return spring 45 is fixed to the bottom, and the bottom of the return spring 45 is fixed to the outer wall of the protective cover 36. By arranging the return spring 45, the push block 44 can be reset. A push rod 43 runs through the protective cover 36, and the penetration is slidably connected. A push block 44 is fixed to one end of the push rod 43, and a hinged rod 47 is hinged to the other end of the push rod 43. The end of the hinged rod 47 away from the push rod 43 is hinged to the sealing ring 46, and a return spring 45 is fixed to the bottom of the push block 44, and the bottom of the return spring 45 is fixed to the outer wall of the protective cover 36.

[0023] Working principle: By turning the knob 32 forward, the threaded sleeve 33 moves downward to squeeze the movable rod 35, so that the movable rod 35 rotates at the hinge, which can push the two sets of connecting blocks 34 away from each other, and the two sets of protective covers 36 away from each other to shield and protect the connecting spline 2, preventing impurities from entering the connecting spline 2, causing jamming and affecting subsequent transmission operations.

[0024] When it is necessary to lubricate the connecting spline 2, the push block 44 can be pushed downward to move the push rod 43 into the protective cover 36 to compress the return spring 45. When the push rod 43 moves into the oil groove 41, the hinge rod 47 will be squeezed to rotate the hinge rod 47 at the hinge, and the sealing ring 46 can be pushed away from the oil filling hole 42 to add lubricating oil and lubricate the connecting spline 2. When the lubrication is completed, the push block 44 can be released. Since the return spring 45 is in a compressed state, the push block 44 can be reset, and the sealing ring 46 can be driven to return to its original position through the hinge rod 47 to cover the oil filling hole 42 for the next lubrication operation.

[0025] The above generally describes the present invention in detail, but it is obvious to a person skilled in the art that some modifications or improvements can be made to the present invention. Therefore, modifications or improvements that do not deviate from the spirit of the present invention are within the scope of protection of the present invention.

Claims

1. A transmission intermediate shaft capable of preventing jamming, comprising a shaft body (1), characterized in that: Connecting splines (2) are fixed at both ends of the shaft body (1), a protection component (3) for protecting the connecting splines (2) is provided on the shaft body (1), a lubrication component (4) for lubricating the connecting splines (2) is provided on the protection component (3), and the protection component (3) comprises: A threaded rod (31), the threaded rod (31) being rotatably mounted on the inner side of the shaft body (1), and a knob (32) being fixed on the top of the threaded rod (31); A threaded sleeve (33) is slidably mounted on the inner wall of the shaft body (1).

2. The anti-stuck transmission intermediate shaft according to claim 1, characterized in that: A connecting block (34) is slidably mounted on the inner wall of the shaft body (1), and a protective cover (36) is fixed on the outer surface of the connecting block (34).

3. The anti-stuck transmission intermediate shaft according to claim 2, characterized in that: A movable rod (35) is hinged on the threaded sleeve (33), and one end of the movable rod (35) away from the threaded sleeve (33) is hinged on a connecting block (34).

4. The anti-stuck transmission intermediate shaft according to claim 2, characterized in that: Two groups of protective covers (36) are provided, and the two groups of protective covers (36) are symmetrically arranged with the center line of the shaft body (1) in the vertical direction as the symmetry axis.

5. The anti-stuck transmission intermediate shaft according to claim 2, characterized in that: The lubrication assembly (4) comprises an oil groove (41), the oil groove (41) is provided on the protective cover (36), an oil filling hole (42) is provided on the inner side of the protective cover (36), and a sealing ring (46) is slidably mounted on the inner wall of the oil groove (41).

6. The anti-jamming transmission intermediate shaft according to claim 5, characterized in that: A push rod (43) passes through the protective cover (36), and the penetration point is slidably connected. A push block (44) is fixed to one end of the push rod (43), and a hinge rod (47) is hinged to the other end of the push rod (43). The end of the hinge rod (47) away from the push rod (43) is hinged to the sealing ring (46). A return spring (45) is fixed to the bottom of the push block (44), and the bottom of the return spring (45) is fixed to the outer wall of the protective cover (36).

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