Hand wheel clutch mechanism

Abstract

The utility model discloses a hand wheel clutch mechanism, which belongs to the field of mechanical equipment and comprises a first rotating shaft, a second rotating shaft, a side cover, a hand wheel and a limiting plug. The hand wheel is located at one end of the first rotating shaft and rotates synchronously with the first rotating shaft. The second rotating shaft is positioned at the other end of the first rotating shaft; a spring is arranged between the second rotating shaft and the first rotating shaft; the limiting plug penetrates through the boss to contact with the first rotating shaft; the first rotating shaft is provided with a first groove, and when the hand wheel clutch mechanism is in a working state, the bottom of the limiting plug is located in the first groove; when the hand wheel clutch mechanism is in a non-working state, the limiting plug makes contact with the surface of the first rotating shaft. According to the hand wheel clutch mechanism disclosed by the utility model, the spring is arranged between the first rotating shaft and the second rotating shaft, so that the first rotating shaft and the second rotating shaft have two states of contact and separation, and when the first rotating shaft and the second rotating shaft are in the separation state, the problem that the clutch device works mistakenly due to the fact that the hand wheel is touched mistakenly can be avoided.

Description

Technical Field

[0001] The utility model relates to the field of mechanical equipment, in particular to a hand wheel clutch mechanism. Background Art

[0002] The clutch mechanism is an important component of the mechanical system, which is used to control power transmission and switching. As a manually controlled clutch mechanism, the handwheel clutch mechanism is widely used in various mechanical equipment. In the prior art, a valve pneumatic clutch handwheel box disclosed in CN212672531U includes a box body for installing various parts, an output shaft arranged inside the box body, and a handwheel arranged perpendicular to the output shaft, and the power output mode inside the box body is switched by the handwheel control.

[0003] However, during the operation of the clutch mechanism, due to the lack of locking of the handwheel working state, it is easy to accidentally touch the handwheel, resulting in accidental opening and closing of the valve in the mechanical system. Utility Model Content

[0004] The utility model provides a hand wheel clutch mechanism, aiming at solving the problem of accidental collision of the hand wheel when the hand wheel is not in a working state mentioned in the background technology.

[0005] In order to achieve the above purpose, the utility model adopts the following scheme:

[0006] The utility model provides a handwheel clutch mechanism, comprising a first rotating shaft, a second rotating shaft, a side cover, a handwheel, and a limit plug; a boss is arranged perpendicular to the surface of the side cover, the first rotating shaft passes through the boss horizontally, and a bearing is arranged between the first rotating shaft and the boss; the handwheel is located at one end of the first rotating shaft, and the handwheel rotates synchronously with the first rotating shaft; the second rotating shaft is located at the other end of the first rotating shaft, and a spring is arranged between the second rotating shaft and the first rotating shaft; the limit plug is arranged on the boss, and the limit plug passes through the boss and contacts the first rotating shaft; the first rotating shaft is provided with a first groove, and when the handwheel clutch mechanism is in a working state, the bottom position of the limit plug contacts the first groove; when the handwheel clutch mechanism is in a non-working state, the limit plug contacts the surface of the first rotating shaft.

[0007] Furthermore, it also includes a pin shaft, which is fixedly arranged on the second rotating shaft, and the spring is sleeved on the pin shaft; the diameter of the spring is smaller than the diameter of the second rotating shaft.

[0008] Furthermore, a plurality of second grooves are circumferentially arranged at the end of the second rotating shaft; a plurality of protrusions are circumferentially arranged at the end of the first rotating shaft, and the protrusions are matched with the second grooves, so that the first rotating shaft rotates synchronously with the second rotating shaft during rotation.

[0009] Optionally, a keyway is provided on the surface of the first rotating shaft, and the first rotating shaft is key-connected to the handwheel.

[0010] Furthermore, a threaded hole is provided on the end surface of the first rotating shaft, and the hand wheel is fixed to the first rotating shaft by screws.

[0011] Furthermore, a gasket is provided between the handwheel and the first rotating shaft.

[0012] Furthermore, a step is provided at the upper end of the first rotating shaft, and when the spring is in a rebound state, the step limits the moving distance of the first rotating shaft.

[0013] Furthermore, the interior of the boss is arranged as a stepped hole, and a skeleton oil seal is arranged at the step of the stepped hole.

[0014] Optionally, the limit plug is a reset type knob plunger.

[0015] Optionally, the stopper is fixed to the surface of the boss by a nut; and the surface where the boss contacts the stopper is a plane.

[0016] Compared with the existing technology, the utility model has the following advantages:

[0017] 1. By arranging a spring between the first rotating shaft and the second rotating shaft, there are two states between the first rotating shaft and the second rotating shaft, namely, contact and disengagement. When the first rotating shaft and the second rotating shaft are in the disengagement state, the problem of the clutch device working malfunctioning due to the hand wheel being touched accidentally can be avoided;

[0018] 2. By setting a limit stopper to limit the lateral movement of the first rotating shaft, the working state of the handwheel clutch mechanism can be maintained after the spring is compressed and rebounded;

[0019] 3. The length of the handwheel clutch mechanism can be extended and retracted. In the working state, the handwheel clutch mechanism is more compact, occupies less space and is easy to operate;

[0020] 4. By setting a skeleton oil seal, the handwheel clutch mechanism can be effectively waterproof and dustproof, thereby protecting the interior of the mechanism. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The present application is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0022] Figure 1 It is a front view of the hand wheel clutch mechanism provided in the embodiment of the utility model.

[0023] Figure 2 yes Figure 1 Half-section view of the handwheel clutch mechanism.

[0024] Figure 3 It is a top view of the handwheel clutch mechanism.

[0025] Figure 4 This is the first-person perspective of the exploded view of the handwheel clutch mechanism.

[0026] Figure 5 This is the second perspective of the exploded view of the handwheel clutch mechanism.

[0027] Figure 6 It is a schematic diagram of the structure of the second rotating shaft with gears.

[0028] Figure 7 Schematic diagram of the first rotating shaft structure.

[0029] Main component symbols:

[0030] 1. Second rotating shaft; 2. Pin shaft; 3. Spring; 4. Side cover; 41. Boss; 5. Bearing; 6. Framework oil seal; 7. First rotating shaft; 8. Step; 9. Nut; 10. Limit plug; 11. Keyway; 12. Handwheel; 13. Gasket; 14. Screw; 15. Second groove; 16. First groove; 17. Bump. DETAILED DESCRIPTION

[0031] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0032] Example

[0033] Refer to the attached drawings of the specification, such as Figure 1-Figure 7 As shown, a hand wheel clutch mechanism proposed in the present application includes a first rotating shaft 7, a second rotating shaft 1, a side cover 4, a hand wheel 12, and a limit plug 10.

[0034] A cylindrical boss 41 is provided perpendicular to the surface of the side cover 4, and the first rotating shaft 7 passes through the boss 41. Two bearings 5 ​​are provided between the first rotating shaft 7 and the boss 41, and the bearings 5 ​​can be selected as deep groove ball bearings to facilitate smoother rotation of the first rotating shaft 7.

[0035] The hand wheel 12 is located at one side of the first rotating shaft 7, and a keyway 11 is provided on the surface of the first rotating shaft 7, and the hand wheel 12 is connected to the first rotating shaft 7 by a key. In this way, the hand wheel 12 is ensured to rotate synchronously with the first rotating shaft 7, and the hand wheel 12 and the first rotating shaft 7 can be disassembled. Optionally, a threaded hole is provided on the end surface of the first rotating shaft 7, and the hand wheel 12 and the first rotating shaft 7 are fixed by a screw 14. A gasket 13 is provided between the hand wheel 12 and the first rotating shaft 7, and the screw 14 passes through the gasket 13 for fixing.

[0036] A gear for transmission is sleeved on the second rotating shaft 1, and the second rotating shaft 1 is located on the other side of the first rotating shaft 7, and a spring 3 is arranged between the second rotating shaft 1 and the first rotating shaft 7. As the spring 3 is compressed and stretched, the second rotating shaft 1 is in contact with or separated from the first rotating shaft 7. Further, a pin 2 is fixed at the end of the second rotating shaft 1, and the spring 3 moves along the pin 2. Based on this situation, the diameter of the spring 3 is smaller than the diameters of the second rotating shaft 1 and the first rotating shaft 7, so as to ensure that the spring 3 is always located on the inner side of the second rotating shaft 1 during the contact between the second rotating shaft 1 and the first rotating shaft 7, so as to facilitate the rapid switching of the hand wheel contact and separation.

[0037] The stopper 10 is locked on the boss 41 by the nut 9, and the working state of the first rotating shaft 7 is fixed by plugging and pulling out the stopper 10. The stopper 10 can be a reset knob plunger. The stopper 10 contacts the first rotating shaft 7 after passing through the boss 41. The first rotating shaft 7 is provided with a first groove 16.

[0038] The working process of the handwheel clutch mechanism is as follows:

[0039] The handwheel clutch mechanism is in a non-working state: the first rotating shaft 7 is disengaged from the second rotating shaft 1, the spring 3 is in a normal state, and the bottom of the stopper 10 contacts the surface of the first rotating shaft 7. At this time, when the handwheel 12 is turned to drive the first rotating shaft 7 to rotate, the second rotating shaft 1 does not rotate with the rotation of the first rotating shaft 7;

[0040] The handwheel clutch mechanism changes from a non-working state to a working state: the handwheel 12 is pushed along the axis toward the second rotating shaft 1, the spring 3 changes from a normal state to a compressed state, the first rotating shaft 7 keeps approaching the second rotating shaft 1 until the first rotating shaft 7 contacts the second rotating shaft 1, and the bottom of the stopper 10 changes from contacting the surface of the first rotating shaft 7 to being inserted into the first groove 16 on the first rotating shaft 7. At this time, when the handwheel 12 is turned to drive the first rotating shaft 7 to rotate, the second rotating shaft 1 rotates with the rotation of the first rotating shaft 7;

[0041] The handwheel clutch mechanism changes from a working state to a non-working state: the limit plug 10 is pulled upward, and at this time the spring 3 pops out the first rotating shaft 7 and the handwheel 12, so that the first rotating shaft 7 is separated from the second rotating shaft 1. After reaching balance, the bottom of the limit plug 10 contacts the surface of the first rotating shaft 7. At this time, when the handwheel 12 is turned to drive the first rotating shaft 7 to rotate, the second rotating shaft 1 does not rotate with the rotation of the first rotating shaft 7.

[0042] Through the above structure, the working state and the non-working state of the hand wheel clutch mechanism are separated, thereby avoiding the problem of equipment changes caused by accidentally touching the hand wheel 12 in the non-working state.

[0043] In addition, a plurality of second grooves 15 may be circumferentially arranged at the end of the second rotating shaft 1; a plurality of protrusions 17 may be circumferentially arranged at the end of the first rotating shaft 7, and the protrusions 17 are adapted to the second grooves 15 so that the first rotating shaft 7 keeps rotating synchronously with the second rotating shaft 1 during rotation.

[0044] A step 8 is provided at the upper end of the first rotating shaft 7. When the spring 3 is in the rebound state, the moving distance of the first rotating shaft 7 is limited by the step 8. A stepped hole is provided inside the boss 41. A skeleton oil seal 6 is provided at the step of the stepped hole. The skeleton oil seal 6 is used to prevent water and dust inside the clutch mechanism.

[0045] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily thought of by any technician familiar with the technical field within the technical scope disclosed in the present invention should be included in the protection scope of the present invention.

Claims

1. A hand wheel clutch mechanism, characterized in that: It comprises a first rotating shaft (7), a second rotating shaft (1), a side cover (4), a hand wheel (12), and a stopper (10); A boss (41) is arranged perpendicular to the surface of the side cover (4), the first rotating shaft (7) passes through the boss (41) transversely, and a bearing (5) is arranged between the first rotating shaft (7) and the boss (41); The hand wheel (12) is located at one end of the first rotating shaft (7), and the hand wheel (12) rotates synchronously with the first rotating shaft (7); The second rotating shaft (1) is located at the other end of the first rotating shaft (7), and a spring (3) is arranged between the second rotating shaft (1) and the first rotating shaft (7); The stopper (10) is arranged on the boss (41), and the stopper (10) passes through the boss (41) to contact the first rotating shaft (7); the first rotating shaft (7) is provided with a first groove (16), and when the handwheel clutch mechanism is in a working state, the bottom of the stopper (10) is located in the first groove (16); when the handwheel clutch mechanism is in a non-working state, the stopper (10) contacts the surface of the first rotating shaft (7).

2. A hand wheel clutch mechanism according to claim 1, characterized in that: It also comprises a pin shaft (2), the pin shaft (2) being fixedly arranged on the second rotating shaft (1), and the spring (3) being sleeved on the pin shaft (2); the diameter of the spring (3) being smaller than the diameter of the second rotating shaft (1).

3. A hand wheel clutch mechanism according to claim 2, characterized in that: A plurality of second grooves (15) are arranged at the end of the second rotating shaft (1) along the circumferential direction; A plurality of protrusions (17) are provided along the circumferential direction at the end of the first rotating shaft (7); the protrusions (17) are matched with the second grooves (15) so that the first rotating shaft (7) rotates synchronously with the second rotating shaft (1) during the rotation process.

4. A hand wheel clutch mechanism according to claim 1, characterized in that: A keyway (11) is provided on the surface of the first rotating shaft (7), and the first rotating shaft (7) and the hand wheel (12) are key-connected.

5. A hand wheel clutch mechanism according to claim 1, characterized in that: A threaded hole is provided on the end surface of the first rotating shaft (7), and the hand wheel (12) and the first rotating shaft (7) are fixed by means of screws (14).

6. A hand wheel clutch mechanism according to claim 5, characterized in that: A gasket (13) is provided between the hand wheel (12) and the first rotating shaft (7), and the screw (14) passes through the gasket (13).

7. A hand wheel clutch mechanism according to claim 1, characterized in that: The upper end of the first rotating shaft (7) is provided with a step (8), and when the spring (3) is in a rebound state, the step (8) limits the moving distance of the first rotating shaft (7).

8. The hand wheel clutch mechanism according to claim 1, characterized in that: The inside of the boss (41) is arranged as a stepped hole, and a skeleton oil seal (6) is arranged at the step of the stepped hole.

9. A hand wheel clutch mechanism according to claim 1, characterized in that: The limit plug (10) is a reset type knob plunger.

10. A hand wheel clutch mechanism according to claim 1, characterized in that: The stopper (10) is fixed to the surface of the boss (41) via a nut (9); the contact surface between the boss (41) and the stopper (10) is a plane.

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