Novel wedge-type one-way clutch

CN224903820UActive Publication Date: 2026-10-27RUIAN FEIPU LOCOMOTIVE PARTS CO LTD
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Patent Information

Application Number
CN202522813093.6
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-12-30
Publication Date
2026-10-27
Estimated Expiration
2035-12-30

AI Technical Summary

Technical Problem

[0004]本实用新型的目的是为了解决楔块式单向器无法满足多种起动机电枢轴的连接,使楔块式单向器无法进行安装适配的问题,而提出的新型楔块式单向器

Benefits of technology

[0017]本实用新型提出的新型楔块式单向器,有益效果是:通过调整结构中螺杆通过套筒向外侧转动,使螺杆的外壁内侧脱离轴杆的外壁圆口,接着使套筒在轴杆的外壁向前移动,使套筒的内壁凹槽漏出,然后螺杆通过套筒向内侧转动,使螺杆外壁内侧与轴杆的外壁前方圆口插接,完成套筒的位置固定,接着将起动机电枢轴的花键端与套筒的内壁插接,此时起动机电枢轴的花键端外壁的多齿会与多个凹槽啮合相连,实现楔块式单向器满足多种起动机电枢轴的连接,保证楔块式单向器的安装适配。

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Abstract

The utility model relates to the technical field of wedge block type one-way device, especially a new type wedge block type one-way device, including axle stem and bent pole, the left and right sides of axle stem are respectively with the end of two bent poles fixedly connected, the outer wall front of axle stem is connected with adjusting structure, the outer wall of axle stem is connected with wedge block type one-way device, the outer wall rear of wedge block type one-way device is connected with fixed structure, make the outer wall inner side of screw rod separate from the outer wall round mouth of axle stem, then make sleeve move forward in the outer wall of axle stem, make the inner wall recess of sleeve leak, then screw rod rotates inwards through sleeve, make the outer wall inner side of screw rod and the outer wall front round mouth of axle stem insert joint, complete the position fixation of sleeve, then the spline end of starter motor armature shaft and the inner wall of sleeve insert joint, the multiple teeth of spline end outer wall of starter motor armature shaft will engage with multiple recesses and be connected at this time, realize that wedge block type one-way device satisfies the connection of multiple starter motor armature shafts, guarantee the installation adaptation of wedge block type one-way device.
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Description

Technical Field

[0001] This utility model relates to the field of one-way device technology, specifically a novel wedge-type one-way device. Background Technology

[0002] The wedge-type one-way valve enables unidirectional power transmission and reverse locking, and also has functions such as overtaking, backstop, and positioning.

[0003] Wedge-type one-way clutch: When the inner ring rotates in the driving direction, the wedge, under the action of friction and spring thrust, swings into the narrow gap between the inner and outer rings, wedging tightly. At this time, the inner ring drives the outer ring to rotate synchronously through the wedge, realizing the transmission of power from the input shaft to the output end. For example, when a car starter motor is working, the armature shaft drives the inner ring to rotate. After the wedge is wedged tightly, the drive gear rotates inward, driving the engine flywheel to start. However, in the use of wedge-type one-way clutches, the internal spline of the clutch needs to be aligned with the spline end of the starter armature shaft and pushed in smoothly to ensure that the spline is properly engaged. The end of the starter armature shaft has a single-tooth and multi-tooth structure, while the internal spline of the wedge-type one-way clutch has a single-tooth structure. This makes the wedge-type one-way clutch unable to meet the connection of various starter armature shafts, making it impossible to install and adapt the wedge-type one-way clutch. Utility Model Content

[0004] The purpose of this invention is to solve the problem that wedge-type one-way valves cannot meet the connection requirements of various starter armature shafts, making it impossible to install and adapt wedge-type one-way valves. Therefore, a new type of wedge-type one-way valve is proposed.

[0005] To achieve the above objectives, this utility model provides the following technical solution: A novel wedge-type one-way device is designed, comprising a shaft and two bent rods. The left and right sides of the shaft are respectively fixedly connected to the ends of two bent rods. An adjustment structure is connected to the front of the outer wall of the shaft, and a wedge-type one-way device is connected to the outer wall of the shaft. A fixing structure is connected to the rear of the outer wall of the wedge-type one-way device.

[0006] This setting: The wedge-type one-way device is a mechanical component that relies on the tightening / loosening action of irregularly shaped wedges to achieve unidirectional power transmission. Its core advantages are fast response, compact structure, and strong load-bearing capacity.

[0007] Preferably, the adjustment structure includes a sleeve and a groove, the inner wall of the sleeve is fitted with the outer wall of the shaft, multiple grooves are machined on the front of the inner wall of the sleeve, and screws are threaded to the upper and lower sides of the sleeve respectively.

[0008] This feature: the screw is subjected to force and rotates up and down through the sleeve. The outer side of the screw has a groove, and the tapered rod is inserted into the groove to rotate, which facilitates the rotation of the screw.

[0009] Preferably, the inner side of the outer wall of the screw is inserted into the outer wall of the shaft.

[0010] This setting: After the inner side of the outer wall of the shaft is inserted into the circular opening of the outer wall of the shaft, the position of the shaft and the sleeve is fixed.

[0011] Preferably, the outer wall opening of the sleeve is slidably connected to the outer wall of the bent rod.

[0012] This setting: The bent rod restricts the movement of the sleeve, ensuring that the sleeve can only move in a straight line during movement.

[0013] Preferably, the fixing structure includes a ring and a straight cylinder. The inner wall of the ring is fixedly connected to the rear of the outer wall of the wedge-type one-way device. The outer opening of the ring is inserted into the outer wall of the straight cylinder. A protective pad is fixedly connected to the rear end face of the straight cylinder.

[0014] This feature allows the straight cylinder to move backward under force and disengage from the outer circular opening of the ring. At the same time, the inner wall of the straight cylinder is threaded to facilitate the tightening of bolts.

[0015] Preferably, the front side of the pad is in contact with the rear end face of the ring.

[0016] This feature: The pad is made of fluororubber, which acts as a cushion behind the ring to prevent the ring 301 from causing wear at the connection.

[0017] The novel wedge-type one-way valve proposed in this utility model has the following advantages: By adjusting the screw in the structure to rotate outward through the sleeve, the inner side of the outer wall of the screw disengages from the outer wall of the shaft. Then, the sleeve moves forward on the outer wall of the shaft, exposing the groove on the inner wall of the sleeve. Next, the screw rotates inward through the sleeve, causing the inner side of the outer wall of the screw to engage with the front circular opening of the outer wall of the shaft, thus fixing the position of the sleeve. Then, the spline end of the starter armature shaft is engaged with the inner wall of the sleeve. At this time, the multiple teeth on the outer wall of the spline end of the starter armature shaft will mesh with multiple grooves, enabling the wedge-type one-way valve to meet the connection of various starter armature shafts and ensuring the installation and compatibility of the wedge-type one-way valve. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 for Figure 1 A schematic diagram showing the connection relationship between the middle sleeve, the groove, and the screw. Figure 3 for Figure 1 A schematic diagram of the structure of A in the middle; Figure 4 for Figure 1 A schematic diagram showing the connection relationship between the central shaft, the screw, and the bent rod; Figure 5 for Figure 1A schematic diagram showing the connection between the straight cylinder and the pad.

[0019] In the diagram: 1. Shaft, 2. Adjustment structure, 201. Sleeve, 202. Groove, 203. Screw, 3. Fixing structure, 301. Ring, 302. Straight cylinder, 303. Protective pad, 4. Bent rod, 5. Wedge-type one-way valve. Detailed Implementation

[0020] The present invention will be further described below with reference to the accompanying drawings: Please see Figure 1-5 In this embodiment, the novel wedge-type one-way device includes a shaft 1 and a bent rod 4. The left and right sides of the shaft 1 are respectively fixed to the ends of the two bent rods 4. An adjustment structure 2 is connected to the front of the outer wall of the shaft 1. A wedge-type one-way device 5 is connected to the outer wall of the shaft 1. The wedge-type one-way device 5 is a mechanical component that achieves one-way power transmission by relying on the wedge tightening / loosening action of the irregular wedge. Its core advantages are fast response, compact structure, and strong load-bearing capacity. A fixing structure 3 is connected to the rear of the outer wall of the wedge-type one-way device 5.

[0021] Adjustment structure 2 includes a sleeve 201 and a groove 202. The inner wall of the sleeve 201 fits against the outer wall of the shaft 1. The sleeve 201 moves back and forth through the outer wall of the shaft 1 under force. Multiple grooves 202 are machined on the front of the inner wall of the sleeve 201. Screws 203 are threaded to the upper and lower sides of the sleeve 201 respectively. The screws 203 rotate up and down through the sleeve 201 under force. The outer side of the screws 203 is provided with a groove. The conical rod is inserted into the groove and rotates to facilitate the rotation of the screws 203. The inner side of the outer wall of the screws 203 is inserted into the outer wall of the shaft 1. After the inner side of the outer wall of the shaft 203 is inserted into the outer wall of the shaft 1, the positions of the shaft 1 and the sleeve 201 are fixed. The outer wall opening of the sleeve 201 is slidably connected to the outer wall of the bent rod 4. The bent rod 4 restricts the sleeve 201, ensuring that the sleeve 201 can only move in a straight line during movement. By adjusting the screw 203 in structure 2 to rotate outward through the sleeve 201, the inner side of the outer wall of the screw 203 is disengaged from the outer wall opening of the shaft 1. Then, the sleeve 201 is moved forward on the outer wall of the shaft 1, exposing the groove 202 on the inner wall of the sleeve 201. Then, the screw 203 is rotated inward through the sleeve 201, so that the inner side of the outer wall of the screw 203 is inserted into the front opening of the outer wall of the shaft 1, thus fixing the position of the sleeve 201. Next, the spline end of the starter armature shaft is inserted into the inner wall of the sleeve 201. At this time, the multiple teeth on the outer wall of the spline end of the starter armature shaft will mesh with multiple grooves 202, so that the wedge-type one-way device can meet the connection of various starter armature shafts and ensure the installation and adaptation of the wedge-type one-way device.

[0022] The fixed structure 3 includes a ring 301 and a straight cylinder 302. The inner wall of the ring 301 is fixedly connected to the rear of the outer wall of the wedge-type one-way device 5. The outer opening of the ring 301 is inserted into the outer wall of the straight cylinder 302. When the straight cylinder 302 is subjected to force and moves backward, it can disengage from the outer opening of the ring 301. At the same time, the inner wall of the straight cylinder 302 is provided with threads to facilitate the tightening of bolts. A protective pad 303 is fixedly connected to the rear end face of the straight cylinder 302. The front of the protective pad 303 is in contact with the rear end face of the ring 301. The protective pad 303 is made of fluororubber and plays a protective role for the rear of the ring 301, preventing the ring 301 from causing wear at the connection.

[0023] Working principle: Wedge-type one-way switch installation: Align the inside of the inner wall shaft 1 of the wedge-type one-way valve 5 with the spline end of the starter armature shaft, and push it in smoothly to ensure that the spline is engaged in place without any misalignment or jamming. At this time, the wedge-type one-way valve 5 will press the protective pad 303 behind the ring 301 against the engine cylinder body. Then, the bolt with the right front to rear thread passes through the straight cylinder 302 and connects with the thread on the outer wall of the engine cylinder body, completing the installation of the wedge-type one-way valve 5.

[0024] When the spline end of the starter armature shaft has multiple teeth, the screw 203 is rotated outward through the sleeve 201, causing the inner side of the outer wall of the screw 203 to disengage from the outer wall opening of the shaft 1. Then, the sleeve 201 is moved forward on the outer wall of the shaft 1, exposing the groove 202 on the inner wall of the sleeve 201. Then, the screw 203 is rotated inward through the sleeve 201, causing the inner side of the outer wall of the screw 203 to engage with the front opening of the outer wall of the shaft 1, thus fixing the position of the sleeve 201. Next, the spline end of the starter armature shaft is engaged with the inner wall of the sleeve 201. At this time, the multiple teeth on the outer wall of the spline end of the starter armature shaft will mesh with multiple grooves 202. When the sleeve 201 moves back and forth, the bent rod 4 will play a limiting role, preventing the sleeve 201 from rotating at an angle.

[0025] Wedge-type one-way valve usage: The wedge-type one-way valve 5 transmits torque by wedging and engaging the wedge between the inner and outer rings under a specific direction, and disengaging in the opposite direction. It only allows power to be transmitted in the set direction. When the driven end speed is higher than the driving end speed, the wedge automatically releases to achieve "overrunning" and avoids reverse driving of the driving component (such as preventing the wheels from driving the engine when the car is coasting, and the transmission downshifting to eliminate impact).

[0026] Although the present invention has been illustrated and described with reference to preferred embodiments, those skilled in the art should understand that various changes in form and detail are possible within the scope of the claims.

Claims

1. A novel wedge-type one-way valve, comprising a shaft (1) and a bent rod (4), characterized in that: The left and right sides of the shaft (1) are respectively fixed to the ends of two bent rods (4). An adjustment structure (2) is connected to the front of the outer wall of the shaft (1). A wedge-type one-way device (5) is connected to the outer wall of the shaft (1). A fixing structure (3) is connected to the rear of the outer wall of the wedge-type one-way device (5). The adjustment structure (2) includes a sleeve (201) and a groove (202). The inner wall of the sleeve (201) fits against the outer wall of the shaft (1). Multiple grooves (202) are machined on the front of the inner wall of the sleeve (201). Screws (203) are threaded to the upper and lower sides of the sleeve (201).

2. The novel wedge-type one-way valve according to claim 1, characterized in that: The inner side of the outer wall of the screw (203) is inserted into the outer wall of the shaft (1).

3. The novel wedge-type one-way valve according to claim 2, characterized in that: The outer wall opening of the sleeve (201) is slidably connected to the outer wall of the bent rod (4).

4. The novel wedge-type one-way valve according to claim 1, characterized in that: The fixed structure (3) includes a ring (301) and a straight cylinder (302). The inner wall of the ring (301) is fixedly connected to the rear of the outer wall of the wedge-type one-way device (5). The outer opening of the ring (301) is inserted into the outer wall of the straight cylinder (302). A protective pad (303) is fixedly connected to the rear end face of the straight cylinder (302).

5. The novel wedge-type one-way valve according to claim 4, characterized in that: The front side of the pad (303) is in contact with the rear end face of the ring (301).