Reset torque clutch

Abstract

The utility model provides a reset torque clutch. The reset torque clutch comprises a shaft sleeve, a locking ring, a disc spring, a disc spring installation base, an O-shaped ring, a limiting steel ball, a spacer bush, a reset ring, a sliding steel ball, a groove base, two bearings, a hole check ring and a shaft check ring. The groove seat is mounted at the convex end of the shaft sleeve in a sleeving manner, and a bearing hole and a snap ring groove are formed in the groove seat; the two bearings are symmetrically mounted in the bearing holes in the groove seat, and the convex end of the shaft sleeve penetrates through the two bearings and is matched with the two bearings; the check ring for the hole is installed on the clamping ring groove in the groove base and matched with the clamping ring groove. The reset torque clutch has the advantages that the steel balls sliding out of the grooves do not make contact with the end faces of the grooves, abrasion is greatly reduced, compared with a traditional clutch, the service life of key components can be prolonged by multiple times, and the maintenance cost and replacement frequency of equipment are reduced.

Description

Technical Field

[0001] This utility model belongs to the field of torque transmission technology, and in particular relates to a reset torque clutch. Background Technology

[0002] Fail-safe torque clutches are commonly used in various overload protection devices. Through a mechanical structure, when the required torque exceeds the set torque value due to torque over-limit or mechanical failure, power transmission is interrupted, the driving end idles, and the load end loses power and stops rotating. After the overload is eliminated, the driving and driven ends are returned to their initial positions, and the connection is manually restored. However, known fail-safe torque clutches, due to structural limitations (see structure...), Figure 1 Even after separation, the disc spring still retains residual force after flipping over. The sliding steel ball that has slid out of the groove still has contact with the end face of the groove. At high speeds, this will wear out quickly and affect the service life.

[0003] Therefore, it is necessary to provide a new reset torque clutch to solve the above-mentioned technical problems. Utility Model Content

[0004] The technical problem solved by this utility model is to provide a reset torque clutch that allows the steel ball sliding out of the groove to have no contact with the end face of the groove, greatly reducing wear. Compared with traditional clutches, it can extend the service life of key components by several times, reduce equipment maintenance costs and replacement frequency.

[0005] To solve the above-mentioned technical problems, the reset torque clutch provided by this utility model includes: a bushing, a locking ring, a disc spring, a disc spring mounting seat, an O-ring, a limiting steel ball, a spacer, a reset ring, a sliding steel ball, a groove seat, two bearings, a retaining ring for the hole, and a retaining ring for the shaft.

[0006] The grooved seat is fitted onto the protruding end of the bushing, and the grooved seat is provided with a bearing hole and a retaining ring groove;

[0007] Two bearings are symmetrically mounted in bearing holes on a grooved seat, and the protruding end of the bushing passes through the two bearings and is adapted to the two bearings;

[0008] The retaining ring for the hole is installed on the retaining ring groove on the groove seat. The retaining ring for the hole is adapted to the retaining ring groove. The retaining ring for the hole is located between the two bearings. The outer walls of the retaining ring for the hole are respectively attached to the outer walls of the two bearings that are close to each other.

[0009] As a further embodiment of this utility model, a retaining ring is fitted on the convex end of the bushing for axial positioning. The bushing has a first mounting hole, and the sliding steel ball is inserted into the first mounting hole of the bushing. The groove seat has a second mounting hole, which is adapted to the sliding steel ball.

[0010] As a further embodiment of this utility model, the spacer is sleeved and installed on the bushing, and the bushing, the spacer and the groove seat are all fitted with the same reset ring, which is adapted to the bushing, the spacer and the groove seat.

[0011] As a further embodiment of this utility model, a sealing groove is provided on the outer wall of the disc spring mounting base, the O-ring is sleeved and installed on the sealing groove, and the disc spring mounting base is sleeved and installed on the bushing.

[0012] As a further embodiment of this utility model, a plurality of limiting steel balls are provided between the disc spring mounting base, the spacer, and the reset ring. The plurality of limiting steel balls are distributed in a ring array, and the outer wall of the O-ring is adapted to the disc spring mounting base.

[0013] As a further embodiment of this utility model, the right end of the bushing is provided with a thread, the locking ring is screwed onto the right end thread of the bushing, and the disc spring is sleeved and installed on the right end of the bushing.

[0014] Compared with related technologies, the reset torque clutch provided by this utility model has the following advantages:

[0015] Beneficial effects:

[0016] 1. This utility model is based on the principle that the disc spring force is transmitted to the middle of the steel ball through the reset ring. By adding a spacer and a ring of steel balls, the residual force of the disc spring after the limiter is disengaged is transmitted to the spacer through the newly added ring of steel balls, and finally to the bushing at the active end. At this time, the reset ring is no longer under force, and the sliding steel ball that has slid out of the groove is also no longer under force. During high-speed rotation, there is no contact between the steel ball that has slid out of the groove and the end face of the groove, resulting in minimal wear. The number of sliding steel balls remains unchanged. By increasing the number of conical groove holes that cooperate with them, the sliding steel balls are always kept within the range of the conical groove holes. As long as the reset ring is pushed, the sliding steel balls can slide into the conical groove holes, complete the reset, and restore the connection. Attached Figure Description

[0017] To facilitate understanding by those skilled in the art, the present invention will be further described below with reference to the accompanying drawings.

[0018] Figure 1 This is a schematic diagram of the structure of this utility model;

[0019] Figure 2 This is a schematic diagram showing the meshing state of the sliding steel ball, the reset ring, and the limiting steel ball in this utility model;

[0020] Figure 3 This is a schematic diagram showing the separation state of the sliding steel ball, the reset ring, and the limiting steel ball in this utility model;

[0021] Figure 4 This is an end view of the groove seat in this utility model;

[0022] Figure 5 This is a schematic diagram of a torque clutch designed for real-world failure protection.

[0023] In the diagram: 1. Bushing; 2. Locking ring; 3. Disc spring; 4. Disc spring mounting base; 5. O-ring; 6. Limiting steel ball; 7. Spacer; 8. Return ring; 9. Sliding steel ball; 10. Groove seat; 11. Bearing; 12. Hole retaining ring; 13. Shaft retaining ring. Detailed Implementation

[0024] Please refer to the following: Figures 1 to 4 ,in, Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram showing the meshing state of the sliding steel ball, the reset ring, and the limiting steel ball in this utility model; Figure 3 This is a schematic diagram showing the separation state of the sliding steel ball, the reset ring, and the limiting steel ball in this utility model. Figure 4 This is an end view of the groove seat in this utility model. The reset torque clutch includes: a bushing (1), a locking ring (2), a disc spring (3), a disc spring mounting seat (4), an O-ring (5), a limiting steel ball (6), a spacer (7), a reset ring (8), a sliding steel ball (9), a groove seat (10), two bearings (11), a retaining ring for the hole (12), and a retaining ring for the shaft (13).

[0025] The groove seat (10) is sleeved on the protruding end of the bushing (1), and the groove seat (10) is provided with a bearing hole and a retaining ring groove;

[0026] Two bearings (11) are symmetrically installed in the bearing holes on the groove seat (10), and the protruding end of the bushing (1) passes through the two bearings (11) and is adapted to the two bearings (11);

[0027] The retaining ring (12) for the hole is installed on the retaining ring groove on the groove seat (10). The retaining ring (12) for the hole is adapted to the retaining ring groove. The retaining ring (12) for the hole is located between the two bearings (11). The outer walls of the retaining ring (12) for the hole are respectively attached to the outer walls of the two bearings (11) that are close to each other.

[0028] A retaining ring (13) is fitted on the convex end of the bushing (1). The retaining ring (13) is used for axial positioning. The bushing (1) has a first mounting hole. The sliding steel ball (9) is inserted into the first mounting hole of the bushing (1). The groove seat (10) has a second mounting hole. The second mounting hole is adapted to the sliding steel ball (9).

[0029] The spacer (7) is sleeved and installed on the bushing (1). The bushing (1), the spacer (7) and the groove seat (10) are all fitted with the same reset ring (8). The reset ring (8) is adapted to the bushing (1), the spacer (7) and the groove seat (10).

[0030] A sealing groove is provided on the outer wall of the disc spring mounting base (4), the O-ring (5) is sleeved and installed on the sealing groove, and the disc spring mounting base (4) is sleeved and installed on the bushing (1).

[0031] Multiple limiting steel balls (6) are provided between the disc spring mounting base (4), the spacer (7), and the reset ring (8). The multiple limiting steel balls (6) are arranged in a ring array. The outer wall of the O-ring (5) is adapted to the disc spring mounting base (4).

[0032] The right end of the bushing (1) is threaded, the locking ring (2) is screwed onto the right end thread of the bushing (1), and the disc spring (3) is sleeved onto the right end of the bushing (1).

[0033] The working principle of the reset torque clutch provided by this utility model is as follows:

[0034] First step: Press down the steel ball until it is inside the groove of the groove seat (10). Apply different pressures to the disc spring (3) by tightening the locking ring (2), thereby converting it into different torques. At this point, the bearing-type failure protection arbitrary position reset torque clutch is assembled. After the limiter engages, the pressure generated by the deformation of the disc spring (3) is transmitted to the reset ring (8) through the limiting steel ball (6), and then to the sliding steel ball (9). After the limiter is separated, the residual force of the disc spring (3) is directly transmitted to the spacer (7) through the limiting steel ball (6), and finally to the bushing (1) at the active end. The bushing (1) and the groove seat (10) are separated by the bearing (11) and cannot transmit force. The reset ring (8) has been pushed away by the sliding steel ball (9). The reset ring (8) is no longer under force at this time, and the sliding steel ball (9) is also no longer under force. When rotating at high speed, there is no contact between the sliding steel ball (9) and the groove end face, and the wear is minimal.

[0035] Second step: By increasing the number of conical groove holes in the groove seat (10) that cooperates with the sliding steel ball (9), the conical groove holes are filled around the whole circle, so that the sliding steel ball (9) is always within the range of the conical groove holes. As long as the reset ring (8) is pushed, the sliding steel ball (9) can slide into the conical groove hole, complete the reset, and restore the connection.

[0036] It should be noted that the device structure and accompanying drawings of this utility model mainly describe the principle of this utility model. In terms of the technical aspects of this design principle, the setting of the power mechanism, power supply system and control system of the device is not fully described. However, under the premise that those skilled in the art understand the principle of the above utility model, the specific details of its power mechanism, power supply system and control system can be clearly understood. The control method in the application document is automatic control through a controller. The control circuit of the controller can be implemented by those skilled in the art through simple programming.

[0037] All standard parts used can be purchased from the market, and can be customized according to the instructions and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the existing technology. The machinery, parts and equipment adopt conventional models in the existing technology, and the structure and principle of the components known to those skilled in the art can be known by those skilled in the art through technical manuals or conventional experimental methods.

[0038] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions, and alterations can be made to these embodiments, or they can be used directly or indirectly, without departing from the principles and spirit of the present invention. In other related technical fields, the scope of the present invention is defined by the appended claims and their equivalents, and they are similarly included within the patent protection scope of the present invention.

Claims

1. A reset torque clutch, characterized by Include: The sleeve (1), locking ring (2), disc spring (3), disc spring mounting seat (4), O type ring (5), limit steel ball (6), spacer (7), reset ring (8), sliding steel ball (9), groove seat (10), two bearings (11), hole retainer (12) and shaft retainer (13) several parts; The groove seat (10) is installed on the convex end of the shaft sleeve (1), and the groove seat (10) is provided with bearing hole and snap ring groove; Two bearings (11) are symmetrically installed in the bearing hole of the groove seat (10), the convex end of the shaft sleeve (1) passes through the two bearings (11) and is matched with the two bearings (11); The hole retainer (12) is installed on the snap ring groove of the groove seat (10), the hole retainer (12) is matched with the snap ring groove, the hole retainer (12) is located between the two bearings (11), and the two side walls of the hole retainer (12) are respectively matched with the side walls of the two bearings (11) which are close to each other.

2. The reset torque clutch of claim 1, wherein: The convex end of the shaft sleeve (1) is provided with a shaft retainer (13), the shaft retainer (13) is used for axial limiting, the shaft sleeve (1) is provided with a mounting hole one, the sliding steel ball (9) is installed in the mounting hole one of the shaft sleeve (1), the groove seat (10) is provided with a mounting hole two, and the mounting hole two is matched with the sliding steel ball (9).

3. The reset torque clutch of claim 1, wherein: The spacer (7) is installed on the shaft sleeve (1), the shaft sleeve (1), the spacer (7) and the groove seat (10) are jointly provided with the same reset ring (8), and the reset ring (8) is matched with the shaft sleeve (1), the spacer (7) and the groove seat (10).

4. The reset torque clutch of claim 1, wherein: The outer wall of the disc spring mounting seat (4) is provided with a sealing groove, the O type ring (5) is installed in the sealing groove, and the disc spring mounting seat (4) is installed in the shaft sleeve (1).

5. The reset torque clutch of claim 1, wherein: The disc spring mounting seat (4) is provided with a plurality of limit steel balls (6) between the spacer (7) and the reset ring (8), the plurality of limit steel balls (6) are arranged in annular array, and the outer wall of the O type ring (5) is matched with the disc spring mounting seat (4).

6. The reset torque clutch of claim 1, wherein: The right end of the shaft sleeve (1) is provided with a thread, the locking ring (2) is threadedly screwed on the right end thread of the shaft sleeve (1), and the disc spring (3) is installed on the right end of the shaft sleeve (1).

Images