CN113864357B

CN113864357B - Radial tongue clutch

Info

Publication number: CN113864357B
Application number: CN202111023966.3A
Authority: CN
Inventors: 邱大宝; 夏海红; 刘超; 方俊磊; 孙宝胜
Original assignee: 704th Research Institute of CSIC
Current assignee: 704th Research Institute of CSIC
Priority date: 2021-09-02
Filing date: 2021-09-02
Publication date: 2024-03-01
Anticipated expiration: 2041-09-02
Also published as: CN113864357A

Abstract

The invention relates to a radial tongue clutch, which comprises a driving piece, a control hand wheel, a driven piece, a sliding block, a tray, a first spring, a long screw rod and a pin shaft, wherein the driving piece is arranged on the driving piece; the driving part is arranged on the driven part through a tray, a sliding groove is formed in the outer side of the upper surface of the tray along the radial direction, the sliding block is arranged in the sliding groove, and the sliding block can slide in the sliding groove along the radial direction; the driven piece is provided with an opening corresponding to the chute; the operating hand wheel is sleeved on the tray and can rotate; the middle part of the operating hand wheel is provided with a spiral guide hole corresponding to the chute, a pin shaft passes through the spiral guide hole and is fixed on the sliding block, the pin shaft is connected with a long screw rod, and the long screw rod is connected with the driving piece through a first spring; when the control hand wheel rotates, the long screw rod and the pin shaft drive the sliding block to slide radially, when the sliding block slides inwards, the clutch is disengaged, and when the sliding block slides outwards to align with the opening, the sliding block is embedded into the opening, so that the clutch is engaged. The invention can greatly reduce the space occupied by the axial direction and observe the engagement condition of the clutch from the outside.

Description

Radial tongue clutch

Technical Field

The invention relates to a clutch, in particular to a radial tongue clutch.

Background

The clutch is used for engaging or disengaging transmission, and for the vertical anchor winch, the clutch is used for engaging and disengaging the anchor chain wheel and the winch drum, so that the power anchor and free anchor working conditions can be switched conveniently. The anchor winch with the manual anchor function is also used for switching working conditions of manpower and power.

Currently, mechanical transmission clutches such as dog clutches, rotary key clutches, and tooth clutches are commonly used. Jaw clutch, tooth clutch: the clutch process needs to move along the axial direction; for the vertical anchor winch with manual operation, clutches are arranged at two ends of the winch drum, and because operation space is reserved around the equipment, an operation mechanism which moves axially lacks an arrangement position. A rotary key clutch: if the bearing capacity is increased, the axial length needs to be increased, but the slotting on the shaft weakens the strength of the shaft, so that the axial size is greatly required, and the engagement condition of the clutch cannot be directly observed from the outside.

Disclosure of Invention

The invention provides a radial tongue clutch, which mainly solves the problems that the conventional mechanical clutch occupies large axial space and cannot be applied to partial anchor winches.

The invention provides the following technical scheme:

the radial tongue clutch is characterized by comprising a driving piece, a control hand wheel, a driven piece, a sliding block, a tray, a first spring, a long screw rod and a pin shaft;

the driving piece is arranged on the driven piece through the tray, a sliding groove is formed in the outer side of the upper surface of the tray along the radial direction, the sliding block is arranged in the sliding groove, and the sliding block can slide in the sliding groove along the radial direction; the driven piece is provided with an opening corresponding to the chute;

the operating hand wheel is sleeved on the tray and can rotate; the middle part of the operating hand wheel is provided with a spiral guide hole corresponding to the sliding groove, the pin shaft penetrates through the spiral guide hole and is fixed on the sliding block, the pin shaft is connected with the long screw rod, and the long screw rod is connected with the driving piece through the first spring;

when the operating hand wheel rotates, the long screw rod and the pin shaft drive the sliding block to slide radially, when the sliding block slides inwards, the clutch is disengaged, and when the sliding block slides outwards to align with the opening, the sliding block is embedded into the opening, so that the clutch is engaged.

Further, the radius of the inner side wall of the spiral guide hole is the same, and the radius of the outer side wall is gradually reduced.

Further, a plurality of sliding grooves are uniformly distributed and encircle on the tray, the operation hand wheel is provided with spiral guide holes corresponding to the sliding grooves in number, and the inner side walls of the spiral guide holes are coaxially arranged.

Further, the clutch further comprises a positioning spring seat and a positioning pin; the positioning spring seat is arranged on the outer side of the operating hand wheel, and the positioning pin is arranged in the positioning spring seat through a second spring; positioning holes are respectively formed in the driving piece at positions corresponding to the positioning pins in the engaged and disengaged states of the clutch; and the second spring pushes the locating pin into the locating hole to fix the operating hand wheel.

Further, the slider edge has a rounded shape.

Further, the upper surface of the sliding block installed in the sliding groove does not exceed the top surface of the sliding groove.

Further, the clutch further comprises a cylindrical pin, and the lower side part of the driving part is connected with the inner side of the tray through the cylindrical pin.

Further, the clutch further comprises a thrust bearing, and the tray is arranged on the thrust bearing on the driven piece.

Further, a copper sheet is padded at the inner bottom of the chute, and the sliding block is arranged on the copper sheet.

Further, the clutch further comprises a retainer ring, and the retainer ring is arranged between the operating hand wheel and the driving piece.

The invention has the beneficial effects that:

the invention adopts radial arrangement, the pin shaft is pressed through the spiral guide hole, the sliding block is driven to slide radially, no axial movement is caused during operation, the space occupied by the axial direction is greatly reduced, and meanwhile, the engagement condition of the clutch can be observed from the outside.

The sliding block is connected with the driving piece and the operating hand wheel through the pin shaft, the long screw rod and the first spring, the operation is convenient, the long screw rod is convenient to assemble and disassemble, the edge of the sliding block is rounded, the sliding block can conveniently enter and exit the opening on the driven piece, and the rounding can prevent blocking.

The invention can avoid misoperation caused by inertial rotation of the operating hand wheel through the auxiliary positioning of the positioning pin.

Drawings

FIG. 1 is a schematic diagram of a conventional clutch configuration;

FIG. 2 is a schematic illustration of the construction of a radial tab clutch of the present invention;

FIG. 3 is a schematic view of the radial tab clutch A of the present invention in a disengaged position;

fig. 4 is a schematic view of the radial tab clutch B of the present invention in a disengaged position.

Wherein: the device comprises a 1-driving part, a 2-operating hand wheel, a 3-driven part, a 4-sliding block, a 5-tray, a 6-thrust bearing, a 7-cylindrical pin, an 8-first spring, a 9-long screw, a 10-pin shaft, an 11-check ring, a 12-positioning spring seat, a 13-positioning pin and a 14-operating spring seat.

Detailed Description

The following detailed description of specific embodiments of the invention is provided in connection with the accompanying drawings and examples. The following examples are only illustrative of the present invention and are not intended to limit the scope of the invention.

In this application, terms of the azimuth or positional relationship of up, down, left, right, inner, outer, front, rear, head, tail, etc. are established based on the azimuth or positional relationship shown in the drawings. The drawings are different, and the corresponding positional relationship may be changed, so that the scope of protection cannot be understood.

In the present invention, the terms "mounted," "connected," "fixed," and the like are to be construed broadly, and may be, for example, fixedly connected or detachably connected, integrally connected or mechanically connected, electrically connected or communicable with each other, directly connected or indirectly connected through an intermediate medium, or communicated between two components, or an interaction relationship between two components. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.

The present embodiment describes a radial tab clutch that employs a radial arrangement that is free of axial movement during operation, reducing the axial space taken up.

As shown in fig. 2 to 4, the clutch includes a driving member 1, a steering wheel 2, a driven member 3, a slider 4, a tray 5, a thrust bearing 6, a cylindrical pin 7, a first spring 8, a long screw 9, a pin 10, a retainer ring 11, a positioning spring seat 12, a positioning pin 13, and a steering spring seat 14. The driving part 1 can be a cable drum of a clutch, and the driven part 3 can be a anchor chain wheel of the clutch.

Wherein, driving piece 1 downside passes through cylindric lock 7 and is connected with tray 5 inboard, and tray 5 sets up on thrust bearing 6 on follower 3. The thrust bearing 6 can support the tray 5 and the driving member 1 when the clutch is disengaged, to reduce friction. The outer side of the upper surface of the tray 5 is radially provided with a plurality of sliding grooves which are uniformly distributed around the axle center of the tray 5, and the bottom of each sliding groove is internally provided with a copper sheet for reducing friction and improving wear resistance. The sliding block 4 is arranged on the copper sheet and can slide in the sliding groove along the radial direction, the upper surface of the sliding block 4 after installation does not exceed the top surface of the sliding groove, an opening corresponding to the sliding groove is arranged on the driven piece 3, the sliding block 4 slides outwards to prop against the inner side of the driven piece 3, and when aligned with the opening on the driven piece 3, the sliding block 4 is embedded into the opening, so that the combination of the driving piece 1 and the driven piece 3 is realized. Preferably, the edge of the slider 4 is rounded to facilitate the entry and exit of the slider 4 into and from the opening in the follower 3, thereby preventing jamming.

The operating hand wheel 2 is sleeved on the tray 5 between the driving piece 1 and the driven piece 3 and can rotate on the tray 5. The retainer ring 11 is arranged between the top of the inner side elevation of the operating hand wheel 2 and the bottom surface of the driving piece 1, so that the driving piece 1 can be prevented from being worn when the operating hand wheel 2 rotates. The middle part of the operating hand wheel 2 is provided with spiral guide holes with the number corresponding to that of the sliding grooves, a pin shaft 10 passes through the spiral guide holes to be fixed on the sliding block 4, the upper end of the pin shaft 10 is provided with external threads and is connected with the inner end of a long screw rod 9 through threads, and the outer end of the long screw rod 9 is supported and connected in an operating spring seat 14 on the driving part 1 through a first spring 8. In this embodiment, the driving member 1, the operating hand wheel 2, the driven member 3 and the tray 5 are coaxially arranged, and uniformly distributed around 3 sliding grooves with the axis as the center, and stable connection between the operating hand wheel 2 and the sliding block 4 on the tray 5 can be ensured through stable support of 3 points. The radius of the inner side wall of the spiral guide hole is gradually reduced by taking the center of the operating hand wheel 2 as the center of the circle, and the reduction of the radius of the outer side wall is equal to the radial moving distance of the sliding block 4; in this embodiment, the radius of the outer sidewall gradually decreases in the clockwise direction, and when the pin 10 moves along the spiral guide hole, the spiral guide hole is pressed against the pin 10, so as to drag the slider 4 to move radially. The inner side wall of the spiral guide hole can be provided with a thickened part to enlarge the contact surface with the pin shaft 10, so that the pin shaft 10 is stressed more uniformly.

The positioning spring seat 12 is arranged on the outer side of the operating hand wheel 2, the positioning pin 13 is arranged in the positioning spring seat 12 through a second spring, the positioning spring seat 12 is propped by the second spring, positioning holes are respectively formed in positions, corresponding to the positioning pin 13, on the driving piece 1 in the two states of clutch engagement and clutch disengagement, the positioning pin 13 is ejected out of the positioning spring seat 12 through the second spring, the operating hand wheel 2 can be fixed by inserting the positioning pin 13 into the positioning holes, and misoperation caused by inertial rotation of the operating hand wheel 2 is avoided.

In the clutch of this embodiment, when the steering wheel 2 is rotated anticlockwise, the pin shaft 10 drives the slider 4 to slide inwards into the chute under the action of the spiral guide hole, so that the clutch is disengaged, and the second spring pushes the positioning pin 13 into the positioning hole, so as to prevent the steering wheel 2 from rotating with inertia. When the operating hand wheel 2 is rotated clockwise, the spiral guide hole releases pressure, the pin shaft 10 moves outwards along the spiral guide hole under the action of the first spring 8 and the long screw rod 9 to drive the sliding block 4 to slide outwards, the sliding block 4 is embedded into the opening along with the rotation of the driving piece 1 to be aligned with the opening on the driven piece 3, the clutch is engaged, and the second spring pushes the positioning pin 13 into the positioning hole to prevent the operating hand wheel 2 from rotating along with inertia.

While the principles of the invention have been described in detail in connection with the preferred embodiments thereof, it should be understood by those skilled in the art that the foregoing embodiments are merely illustrative of the implementations of the invention and are not intended to limit the scope of the invention. The details of the embodiments are not to be taken as limiting the scope of the invention, and any obvious modifications based on equivalent changes, simple substitutions, etc. of the technical solution of the invention fall within the scope of the invention without departing from the spirit and scope of the invention.

Claims

1. The radial tongue clutch is characterized by comprising a driving piece (1), an operating hand wheel (2), a driven piece (3), a sliding block (4), a tray (5), a first spring (8), a long screw (9) and a pin shaft (10);

the driving piece (1) is arranged on the driven piece (3) through the tray (5), a sliding groove is formed in the outer side of the upper surface of the tray (5) along the radial direction, the sliding block (4) is arranged in the sliding groove, and the sliding block (4) can slide along the radial direction in the sliding groove; the driven piece (3) is provided with an opening corresponding to the chute;

the control hand wheel (2) is sleeved on the tray (5) and can rotate; the middle part of the operating hand wheel (2) is provided with a spiral guide hole corresponding to the sliding groove, the pin shaft (10) penetrates through the spiral guide hole and is fixed on the sliding block (4), the pin shaft (10) is connected with the long screw rod (9), and the long screw rod (9) is connected with the driving piece (1) through the first spring (8);

when the operating hand wheel (2) rotates, the long screw rod (9) and the pin shaft (10) drive the sliding block (4) to slide radially, when the sliding block (4) slides inwards, the clutch is disengaged, and when the sliding block (4) slides outwards to be aligned with the opening, the sliding block (4) is embedded into the opening, so that the clutch is engaged.

2. The radial tab clutch of claim 1 wherein the helical pilot has an inner sidewall radius that is the same and an outer sidewall radius that tapers.

3. The radial tongue clutch according to claim 2, wherein a plurality of the sliding grooves are uniformly distributed around the tray (5), the control hand wheel (2) is provided with the spiral guide holes corresponding to the sliding grooves in number, and the inner side walls of the plurality of the spiral guide holes are coaxially arranged.

4. The radial tab clutch of claim 1, further comprising a detent spring seat (12), detent pin (13); the positioning spring seat (12) is arranged outside the operating hand wheel (2), and the positioning pin (13) is arranged in the positioning spring seat (12) through a second spring; positioning holes are respectively formed in positions, corresponding to the positioning pins (13), of the driving piece (1) in the engaged and disengaged states of the clutch; the second spring pushes the locating pin (13) into the locating hole to fix the operating hand wheel (2).

5. The radial tab clutch according to claim 1, characterized in that the slider (4) edge has a rounded shape.

6. A radial tongue clutch according to claim 1, characterised in that the upper surface of the slider (4) mounted in the runner does not exceed the runner top surface.

7. The radial tab clutch according to claim 1, characterized in that it further comprises a cylindrical pin (7), the lower side of the active element (1) being connected to the inside of the tray (5) by means of the cylindrical pin (7).

8. The radial tab clutch according to claim 1, characterized in that it further comprises a thrust bearing (6), said tray (5) being arranged on said thrust bearing (6) on said follower (3).

9. The radial tongue clutch according to claim 1, wherein the inner bottom of the runner is padded with a copper sheet, and the slider (4) is placed on the copper sheet.

10. The radial tab clutch according to claim 1, characterized in that the clutch further comprises a retaining ring (11), the retaining ring (11) being arranged between the steering handwheel (2) and the driving member (1).