Fork clutch device

Abstract

The utility model discloses a shifting fork clutch device, which relates to the technical field of clutches, and comprises a transmission shaft, a clutch mechanism and a power device, the clutch mechanism is used for connecting or interrupting power transmission between the power device and the transmission shaft, and the clutch mechanism comprises a spline sleeve and a driving device, the spline sleeve is arranged at one end of the transmission shaft, the driving device is arranged on the power device, the driving device is in driving connection with the spline sleeve, the driving device is used for driving the spline sleeve to move, and the telescopic direction of the push rod device is parallel to the axial direction of the spline sleeve; the spline sleeve can be driven by the push rod device to enable the clutch mechanism to move to be connected with or separated from the transmission shaft, so that the purpose of connecting power transmission between the power device and the transmission shaft is achieved, or the purpose of interrupting power transmission between the power device and the transmission shaft is achieved. The shifting fork clutch device is simple in structure, convenient to maintain and convenient for later maintenance.

Description

Technical Field

[0001] The utility model relates to the technical field of clutches, in particular to a shift fork clutch device. Background Art

[0002] The clutch is a common component in the transmission of automobiles, tractors and other machinery, which can separate or engage the transmission system at any time; the fork clutch device is a type of clutch device; the clutch is generally located between the power source and the gearbox, and the clutch transmits the power to the gearbox, and the power is then transmitted from the gearbox to the drive shaft, thereby realizing power transmission;

[0003] In existing mechanical transmissions, friction clutches are one of the common clutches. The clutch structure used in this type of clutch assembly is complex, difficult to repair, and inconvenient for subsequent maintenance. Utility Model Content

[0004] The utility model aims to provide a shift fork clutch device, which has a simple structure, is easy to repair and is convenient for later maintenance.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a shift fork clutch device, comprising a transmission shaft, a clutch mechanism, and a power device, wherein the clutch mechanism is used to connect or interrupt the power transmission between the power device and the transmission shaft, the clutch mechanism comprises a spline sleeve and a driving device, the spline sleeve is arranged at one end of the transmission shaft, the driving device is arranged on the power device, and the driving device is drivingly connected to the spline sleeve, and the driving device is used to drive the spline sleeve to move.

[0006] In order to make the first internal spline cylinder mesh with the first external spline and the first internal spline cylinder mesh with the first external spline, as a preferred fork clutch device of the utility model, the transmission shaft includes a rotating shaft, and a first external spline and a second external spline arranged on the outer wall of one end of the rotating shaft; the spline sleeve includes a first internal spline cylinder and a second internal spline cylinder; the first internal spline cylinder and the second internal spline cylinder are respectively located in the first external spline and the second external spline, and the first internal spline cylinder meshes with the first external spline, and the second internal spline cylinder meshes with the second external spline.

[0007] In order to drive the spline sleeve to move, as a preferred embodiment of the fork clutch device of the present invention, the driving device includes a push rod device and a fork member, and the push rod device is drivingly connected to the spline sleeve through the fork member.

[0008] In order to make the position where the second connecting part rotates around the fixed seat form a fulcrum for the relative swing of the first connecting part and the bolt bearing, as a preferred embodiment of the fork clutch device of the utility model, the fork member includes a first connecting part and a second connecting part; the second connecting part is in a semicircular ring structure, and the bolt bearings are symmetrically arranged at both ends of the inner wall of the second connecting part, and a groove is arranged on the outer wall of the connection between the first inner spline cylinder and the second inner spline cylinder, and the two bolt bearings are both arranged in the groove.

[0009] In order to easily protect the transmission shaft and the clutch mechanism, as a preferred fork clutch device of the utility model, the transmission shaft and the clutch mechanism are both located in a power device, and the power device includes a shell, a front end cover, and a rear cover plate. The shell is a hollow structure and its two ends are open. The front end cover and the rear cover plate are arranged at both ends of the shell.

[0010] In order to realize power transmission or interruption of power transmission between the power device and the transmission shaft, as a preferred shift fork clutch device of the utility model, a support frame is provided on the side of the rear cover plate facing the front end cover, the push rod device is arranged on the support frame through a pin shaft, a fixing seat is provided on the inner wall of the front end cover, a through hole is provided on the shift fork member, a pin shaft hinged to the fixing seat is provided in the through hole; a through slot is provided on the shell body, one end of the first connecting part passes through the through slot and is arranged at the output end of the push rod device through the pin shaft; the telescopic direction of the push rod device is parallel to the axial direction of the spline sleeve.

[0011] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0012] The utility model realizes that the telescopic direction of the push rod device is parallel to the axial direction of the spline sleeve, and by starting the push rod device, the spline sleeve can be driven by the push rod device to make the clutch mechanism move and connect or separate with the transmission shaft, thereby achieving the purpose of connecting the power transmission between the power device and the transmission shaft, or achieving the purpose of interrupting the power transmission between the power device and the transmission shaft; the shift fork clutch device has a simple structure and is easy to repair, which is convenient for later maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the structure of the utility model;

[0014] Figure 2 This is a schematic diagram of the structure of the spline sleeve of the utility model;

[0015] Figure 3 It is a structural schematic diagram of the transmission shaft, clutch mechanism and power device of the utility model;

[0016] Figure 4 This is a schematic diagram of the structure of the drive device and spline sleeve of the utility model;

[0017] Figure 5 It is a structural schematic diagram of the driving device of the utility model.

[0018] In the figure: 1. transmission shaft; 2. clutch mechanism; 3. power device; 4. spline sleeve; 5. driving device; 6. rotating shaft; 7. first external spline; 8. second external spline; 9. first internal spline cylinder; 10. second internal spline cylinder; 11. push rod device; 12. fork member; 13. first connecting part; 14. second connecting part; 15. bolt bearing; 16. groove; 17. housing; 18. front end cover; 19. rear cover plate; 20. support frame; 21. fixing seat; 22. through hole; 23. through groove. DETAILED DESCRIPTION

[0019] See also Figures 1 to 5 The shift fork clutch device comprises a transmission shaft 1, a clutch mechanism 2, and a power device 3. The clutch mechanism 2 is used to connect or interrupt the power transmission between the power device 3 and the transmission shaft 1. The clutch mechanism 2 comprises a spline sleeve 4 and a driving device 5. The spline sleeve 4 is arranged at one end of the transmission shaft 1. The driving device 5 is arranged on the power device 3, and the driving device 5 is drivingly connected to the spline sleeve 4. The driving device 5 is used to drive the spline sleeve 4 to move.

[0020] In this embodiment: the driving device 5 includes a push rod device 11 and a fork member 12, the push rod device 11 and the fork member 12 are used to drive the spline sleeve 4, specifically, the push rod device 11 is connected to the spline sleeve 4 through the fork member 12; the extension direction of the push rod device 11 is parallel to the axial direction of the spline sleeve 4, by starting the push rod device 11 (the push rod device 11 is contracted), so that the spline sleeve 4 can drive the first inner spline cylinder 9 and the second inner spline cylinder 10 to move under the drive of the push rod device 11, and are respectively sleeved on the first outer spline 7 and the second outer spline 8, the connection between the power device 3 and the transmission shaft 1 is completed, and the purpose of power transmission between the power device 3 and the transmission shaft 1 is achieved; by starting the push rod device 11 (the push rod device 11 is extended), the spline sleeve 4 can be driven by the push rod device 11 to drive the first internal spline cylinder 9 and the second internal spline cylinder 10 to separate from the first external spline 7 and the second external spline 8, so as to achieve the purpose of interrupting the power transmission between the power device 3 and the transmission shaft 1; this scheme simplifies the types of parts involved in the clutch device and the installation space required, which is convenient for later maintenance;

[0021] The push rod device 11 of this embodiment adopts an electric push rod, which drives the fork member 12 to drive the spline sleeve 4 to move in the axial direction;

[0022] It should be noted that during the use of the present invention, the power device 3 and the transmission shaft 1 are fixed to other components, and the specific fixing positions are determined according to the application scenario of the present invention.

[0023] As a technical optimization scheme of the utility model, the transmission shaft 1 includes a rotating shaft 6, and a first external spline 7 and a second external spline 8 arranged on the outer wall of one end of the rotating shaft 6; the spline sleeve 4 includes a first internal spline cylinder 9 and a second internal spline cylinder 10; the first internal spline cylinder 9 and the second internal spline cylinder 10 are respectively located in the first external spline 7 and the second external spline 8, and the first internal spline cylinder 9 is meshed with the first external spline 7, and the second internal spline cylinder 10 is meshed with the second external spline 8.

[0024] In this embodiment, the first internal spline cylinder 9 is meshed with the first external spline 7 , and the second internal spline cylinder 10 is meshed with the second external spline 8 , so as to realize power transmission and interruption of power transmission between the power device 3 and the transmission shaft 1 .

[0025] As a technical optimization solution of the present utility model, the driving device 5 includes a push rod device 11 and a fork member 12 , and the push rod device 11 is drivingly connected to the spline sleeve 4 through the fork member 12 .

[0026] In this embodiment: the push rod device 11 is started and connected to the spline sleeve 4 through the fork member 12. The push rod device 11 is used to drive the fork member 12 to drive the spline sleeve 4 to drive the first external spline 7 and the second external spline 8 to move.

[0027] As a technical optimization solution of the utility model, the fork member 12 includes a first connecting part 13 and a second connecting part 14; the second connecting part 14 is in a semicircular ring structure, and bolt bearings 15 are symmetrically arranged at both ends of the inner wall of the second connecting part 14, and a groove 16 is arranged on the outer wall of the connection between the first inner spline cylinder 9 and the second inner spline cylinder 10, and the two bolt bearings 15 are both arranged in the groove 16.

[0028] In this embodiment, the bolt bearing 15 is disposed in the groove 16 , so that the position where the second connection part 14 rotates around the fixing seat 21 forms a fulcrum for the relative swing of the first connection part 13 and the bolt bearing 15 .

[0029] As a technical optimization solution of the utility model, the transmission shaft 1 and the clutch mechanism 2 are both located in the power device 3. The power device 3 includes a shell 17, a front end cover 18, and a rear cover plate 19. The shell 17 is a hollow structure and its two ends are open. The front end cover 18 and the rear cover plate 19 are arranged at both ends of the shell 17.

[0030] In this embodiment, the transmission shaft 1 and the clutch mechanism 2 can be easily disposed in the power device 3 through the housing 17 , the front end cover 18 , and the rear cover plate 19 , so that the transmission shaft 1 and the clutch mechanism 2 can be easily protected.

[0031] As a technical optimization scheme of the utility model, a support frame 20 is arranged on the side of the rear cover plate 19 facing the front end cover 18, the push rod device 11 is arranged on the support frame 20 through a pin shaft, a fixing seat 21 is arranged on the inner wall of the front end cover 18, a through hole 22 is opened on the fork member 12, and a pin shaft hinged to the fixing seat 21 is arranged in the through hole 22; a through groove 23 is opened on the shell 17, one end of the first connecting portion 13 passes through the through groove 23 and is arranged at the output end of the push rod device 11 through a pin shaft; the telescopic direction of the push rod device 11 is parallel to the axial direction of the spline sleeve 4.

[0032] In this embodiment: the push rod device 11 is arranged on the rear cover plate 19 through the support frame 20, the extension direction of the push rod device 11 is parallel to the axial direction of the spline sleeve 4, and the position where the second connecting part 14 rotates around the fixed seat 21 forms a fulcrum for the relative swing of the first connecting part 13 and the bolt bearing 15. When the push rod device 11 is started, it is driven and connected with the spline sleeve 4 through the fork member 12, so that the power device 3 and the transmission shaft 1 can achieve the purpose of power transmission or power interruption.

[0033] Working principle: the push rod device 11 is arranged on the rear cover plate 19 through the support frame 20, and the push rod device 11 is started, so that the spline sleeve 4 can drive the first internal spline cylinder 9 and the second internal spline cylinder 10 to move under the drive of the push rod device 11, and are respectively sleeved on the first external spline 7 and the second external spline 8, so that the first internal spline cylinder 9 is meshed and connected with the first external spline 7, and the second internal spline cylinder 10 is meshed and connected with the second external spline 8, so that the fork member 12 is used for the spline sleeve 4 to drive the connection, and realize the purpose of connecting the power device 3 and the transmission shaft 1; or when the spline sleeve 4 moves parallel to the reverse axial direction, the spline sleeve 4 can drive the first internal spline cylinder 9 and the second internal spline cylinder 10 to separate from the first external spline 7 and the second external spline 8 under the drive of the push rod device 11, so as to realize the purpose of interrupting the power transmission between the power device 3 and the transmission shaft 1.

[0034] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A shift fork clutch device, comprising a transmission shaft (1), a clutch mechanism (2), and a power device (3), wherein the clutch mechanism (2) is used to connect or interrupt power transmission between the power device (3) and the transmission shaft (1), and is characterized in that: The clutch mechanism (2) comprises a spline sleeve (4) and a driving device (5), wherein the spline sleeve (4) is arranged at one end of the transmission shaft (1), and the driving device (5) is arranged on the power device (3), and the driving device (5) is drivingly connected to the spline sleeve (4), and the driving device (5) is used to drive the spline sleeve (4) to move.

2. The fork clutch device according to claim 1, characterized in that: The transmission shaft (1) comprises a rotating shaft (6), and a first external spline (7) and a second external spline (8) arranged on the outer wall of one end of the rotating shaft (6); the spline sleeve (4) comprises a first internal spline cylinder (9) and a second internal spline cylinder (10); the first internal spline cylinder (9) and the second internal spline cylinder (10) are respectively located in the first external spline (7) and the second external spline (8), and the first internal spline cylinder (9) is meshed with the first external spline (7), and the second internal spline cylinder (10) is meshed with the second external spline (8).

3. The fork clutch device according to claim 2, characterized in that: The driving device (5) comprises a push rod device (11) and a shift fork member (12); the push rod device (11) is drivingly connected to the spline sleeve (4) via the shift fork member (12).

4. The fork clutch device according to claim 3, characterized in that: The fork member (12) comprises a first connecting portion (13) and a second connecting portion (14); the second connecting portion (14) is in the shape of a semicircular ring structure, bolt bearings (15) are symmetrically arranged at both ends of the inner wall of the second connecting portion (14), a groove (16) is arranged on the outer wall of the connection between the first inner spline cylinder (9) and the second inner spline cylinder (10), and the two bolt bearings (15) are both arranged in the groove (16).

5. The fork clutch device according to claim 4, characterized in that: The transmission shaft (1) and the clutch mechanism (2) are both located in a power device (3). The power device (3) comprises a housing (17), a front end cover (18), and a rear cover plate (19). The housing (17) is a hollow structure with both ends being open. The front end cover (18) and the rear cover plate (19) are arranged at both ends of the housing (17).

6. The fork clutch device according to claim 5, characterized in that: A support frame (20) is provided on the side of the rear cover plate (19) facing the front cover (18); the push rod device (11) is arranged on the support frame (20) via a pin shaft; a fixing seat (21) is provided on the inner wall of the front cover (18); a through hole (22) is provided on the fork member (12); a pin shaft hinged to the fixing seat (21) is provided in the through hole (22); a through slot (23) is provided on the housing (17); one end of the first connecting portion (13) passes through the through slot (23) and is arranged at the output end of the push rod device (11) via a pin shaft; the telescopic direction of the push rod device (11) is parallel to the axial direction of the spline sleeve (4).

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