CN217578125U

CN217578125U - Capstan clutch and capstan

Info

Publication number: CN217578125U
Application number: CN202220596151.8U
Authority: CN
Inventors: 汤良道; 吴胜斌; 周军
Original assignee: Zhejiang Nowvow Mechanical & Electrical Corp ltd
Current assignee: Zhejiang Nowvow Mechanical & Electrical Corp ltd
Priority date: 2022-03-18
Filing date: 2022-03-18
Publication date: 2022-10-14
Anticipated expiration: 2032-03-18

Abstract

The utility model provides a capstan winch clutch, its technical scheme who solves technical problem includes axle sleeve, handle, pull rod, the one end of axle sleeve is inserted in the handle, the pull rod alternates in the axle sleeve with sliding connection's mode, the one end of pull rod alternates there is the round pin axle rather than axis vertically, the axle sleeve is located and is equipped with the cam surface on the terminal surface of the one end in the handle, round pin axle and cam surface contact, be connected with the spring between pull rod and the axle sleeve, the handle is originally internal inserted to the one end of pull rod, the handle rotates and can drive the pull rod and rotate, and the rotation of pull rod drives the pull rod slip and then realize opening or being closed of separation and reunion under the effect of round pin axle and cam surface, the utility model also provides an adopt above-mentioned clutch's capstan winch. The utility model discloses well spare part processing is convenient, can improve the stability of handle, has improved sealed effect simultaneously.

Description

Capstan clutch and capstan

Technical Field

The utility model belongs to the technical field of the capstan winch technique and specifically relates to a capstan winch clutch and capstan winch.

Background

In the existing winch clutch device, a clutch pull rod and a clutch handle are generally fixed through screws, a spring is arranged below the clutch pull rod, two bosses are arranged at the rotating part of the clutch handle, the bosses of the handle move between high points and low points of a cam rotating curved surface, the handle and the pull rod slide together in the process, and the handle rotates to lift the pull rod to a fixed distance and compress the spring, which is in a clutch opening state. The handle is rotated reversely, and the pull rod is descended through the elastic force of the spring, so that the clutch is in a closing state.

This kind of structure needs be at the inside processing handle boss of handle, and processing is inconvenient, and the in-process handle needs be along with the pull rod up-and-down motion moreover, is sliding fit at the opening position of handle and connects, and then can cause inside impurity such as entering dust easily, uses inconvenient moreover.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a capstan winch clutch and capstan winch, spare part processing is convenient, can improve the stability of handle, has improved sealed effect simultaneously.

The utility model provides a capstan winch clutch, its technical scheme who solves technical problem include axle sleeve, handle, pull rod, the one end of axle sleeve is inserted in the handle, the pull rod alternates in the axle sleeve with sliding connection's mode, the one end interlude of pull rod has rather than axis vertically round pin axle, the axle sleeve is located and is equipped with the cam surface on the terminal surface of the one end in the handle, round pin axle and cam surface contact, be connected with the spring between pull rod and the axle sleeve, the handle is originally internal to be inserted to the one end of pull rod, the handle rotates and to drive the pull rod rotation, and the rotation of pull rod drives the pull rod slip and then realize opening or being closed of separation and reunion under the effect of round pin axle and cam surface.

Preferably, the blind hole has been seted up to the one end of handle, the one end of axle sleeve is inserted in the blind hole, the closing cap that is located between blind hole inner wall and the axle sleeve outer wall is installed to the opening one end of blind hole, through screw fixed connection between the lateral wall of closing cap and blind hole, a terminal surface of closing cap and the terminal surface parallel and level of handle.

Preferably, a first sealing ring is installed between the sealing cover and the inner side wall of the blind hole, a second sealing ring is installed between the sealing cover and the shaft sleeve, an annular groove is formed in the outer wall of the shaft sleeve, and the second sealing ring is installed in the annular groove.

Preferably, a guide cylinder is arranged on the bottom wall of the blind hole, one end of the pull rod is inserted into the guide cylinder, one end of the pull rod inserted into the guide cylinder is of a flat square structure, a plane matched with the outer wall of the pull rod is arranged on the inner wall of the guide cylinder, and a gap is reserved between the end of the pull rod and the bottom wall of the guide cylinder.

Preferably, the inner hole of the shaft sleeve is provided with a first step surface, the pull rod is positioned on the side wall inside the shaft sleeve and is provided with a second step surface, and the spring is connected between the first step surface and the second step surface.

Preferably, when the clutch is opened, one end of the outer part of the pull rod extends out of the shaft sleeve, and when the clutch is closed, one end of the outer part of the pull rod retracts into the shaft sleeve.

Preferably, a third step surface is formed on the outer side wall of the shaft sleeve, and one end surface of the seal cover is attached to the third step surface.

Preferably, the lowest point and the highest point of the cam surface are provided with positioning grooves for positioning the pin shaft.

The utility model also discloses a capstan winch, including the clutch who above-mentioned.

To sum up, the utility model discloses a cooperation structure at round pin axle, pull rod, cam surface has improved the stability of height motion, and handle and axle sleeve complex position are static relatively in addition, have improved the life of handle to increased closing cap, sealing washer etc. and improved sealed effect.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

FIG. 1 is a schematic view of the clutch-on state of the present invention;

FIG. 2 is a schematic view of the clutch closed state of the present invention;

FIG. 3 is a view of the structure of the handle of the present invention;

FIG. 4 is a front view of the shaft sleeve structure of the present invention;

fig. 5 isbase:Sub>A cross-sectional viewbase:Sub>A-base:Sub>A of fig. 4 in accordance with the present invention;

fig. 6 is a structure view of the bolt shaft on the pull rod of the present invention.

In the figure;

1. a shaft sleeve; 2. a handle; 3. a pull rod; 4. a pin shaft; 5. a cam surface; 6. a spring; 7. blind holes; 8. sealing the cover; 9. a screw; 10. a first seal ring; 11. a second seal ring; 12. a guide cylinder; 13. a first step surface; 14. a second step surface; 15; and (7) positioning a groove.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts all belong to the protection scope of the present invention.

One of the embodiments of the present invention discloses a winch clutch device, as shown in fig. 1-6, including a shaft sleeve 1, a handle 2, and a pull rod 3, wherein the handle 2 is provided with a blind hole 7, one end of the shaft sleeve 1 is inserted into the blind hole 7, the pull rod 3 is inserted into the shaft sleeve 1 in a sliding connection manner, one end of the pull rod 3 is always located outside the shaft sleeve 1, the other end of the pull rod 3 has two states of extending out of the shaft sleeve 1 or retracting into the shaft sleeve 1 along with the sliding of the pull rod 3, when the outer end of the pull rod 3 extends out of the shaft sleeve 1, and when the clutch is opened, when one end of the pull rod 3 retracts into the shaft sleeve 1, the clutch is closed; the pull rod 3 is provided with a pin shaft 4 perpendicular to the axis in the handle 2, the end face of one end of the shaft sleeve 1 in the handle 2 is provided with a cam surface 5, the pin shaft 4 is in contact with the cam surface 5, the pin shaft 4 penetrates through the pull rod 3, and the cam surface 5 is distributed symmetrically about the center of a circle of the end face of the shaft sleeve 1, so that when the pull rod 3 rotates, the pin shaft 4 can move along the cam surface 5 and further can move up and down along with the contour of the cam surface 5, positioning grooves 15 for positioning the pin shaft 4 are arranged at the lowest point and the highest point of the cam surface 5, and the pin shaft 4 can be positioned, and further the position of the pull rod 3 is fixed.

Wherein the rotation of pull rod 3 is driven through the rotation of handle 2, is equipped with guide cylinder 12 on the diapire of blind hole 7 of handle 2, the one end of pull rod 3 is inserted in guide cylinder 12, the one end that pull rod 3 inserted in guide cylinder 12 is flat square structure, and the inner wall of guide cylinder 12 is equipped with the plane with 3 outer wall matched with of pull rod, it is gapped between the end of pull rod 3 and the diapire of guide cylinder 12, forms like this that pull rod 3 can slide but can not produce relative driven structure in the circumferencial direction at the wire cylinder along the axis direction, can be fine realization drive pull rod 3 through handle 2 and rotate and the slip demand of adaptation pull rod 3.

In addition, a spring 6 is connected between the pull rod 3 and the shaft sleeve 1, so that the pin shaft 4 and the cam surface 5 can be always kept in contact under the action of the spring 6, the switching of the clutch is more stable and effective, wherein a first step surface 13 is formed in an inner hole of the shaft sleeve 1, a second step surface 14 is formed on the side wall of the pull rod 3 positioned in the shaft sleeve 1, and the spring 6 is connected between the first step surface 13 and the second step surface 14; when the clutch is switched, the pull rod 3 is lifted to a fixed distance and the spring 6 is compressed by the rotation of the handle 2, and the clutch is in an open state; when the handle 2 is rotated in the reverse direction, the pull rod 3 is lowered by the elastic force of the spring 6, and the clutch is closed.

The utility model discloses an one of them embodiment does, installs the closing cap 8 that is located between blind hole 7 inner wall and the axle sleeve 1 outer wall at the opening one end of blind hole 7, through screw 9 fixed connection between the lateral wall of closing cap 8 and blind hole 7, a terminal surface of closing cap 8 and the terminal surface parallel and level of handle 2, closing cap 8 is used for sealing up the space between blind hole 7 inner wall and the axle sleeve 1, install first sealing washer 10 between the inside wall of closing cap 8 and blind hole 7, install second sealing washer 11 between closing cap 8 and the axle sleeve 1, seted up the annular groove on the outer wall of axle sleeve 1, second sealing washer 11 is installed in the annular groove, and such structural design can play the protective effect to inside clearance fit part, plays waterproof dirt-proof effect, and also can reduce handle 2's vibrations to a certain extent through the elasticity effect of sealing washer, the utility model discloses be formed with the third step face on the lateral wall of axle sleeve 1, a terminal surface and the laminating of closing cap 8 is convenient for the installation location of closing cap 8.

The utility model also discloses a capstan winch, including the clutch that the aforesaid mentioned.

The foregoing is a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements and decorations can be made without departing from the principle of the present invention, and these improvements and decorations are also considered as the protection scope of the present invention.

Claims

1. The winch clutch device is characterized by comprising a shaft sleeve, a handle and a pull rod, wherein one end of the shaft sleeve is inserted into the handle, the pull rod is inserted into the shaft sleeve in a sliding connection mode, a pin shaft perpendicular to the axis of the pull rod is inserted into one end of the pull rod, a cam surface is arranged on the end face of one end, located in the handle, of the shaft sleeve, the pin shaft is in contact with the cam surface, a spring is connected between the pull rod and the shaft sleeve, one end of the pull rod is inserted into the handle body, the handle can be rotated to drive the pull rod to rotate, and the rotation of the pull rod drives the pull rod to slide under the action of the pin shaft and the cam surface so as to realize the clutch to be opened or closed.

2. The winch clutch device according to claim 1, wherein a blind hole is formed at one end of the handle, one end of the shaft sleeve is inserted into the blind hole, a sealing cover is installed at one open end of the blind hole and located between the inner wall of the blind hole and the outer wall of the shaft sleeve, the sealing cover is fixedly connected with the side wall of the blind hole through a screw, and one end face of the sealing cover is flush with the end face of the handle.

3. The winch clutch device according to claim 2, wherein a first sealing ring is mounted between the cover and the inner side wall of the blind hole, a second sealing ring is mounted between the cover and the shaft sleeve, an annular groove is formed in the outer wall of the shaft sleeve, and the second sealing ring is mounted in the annular groove.

4. The winch clutch device according to claim 2, wherein a guide cylinder is provided on the bottom wall of the blind hole, one end of the pull rod is inserted into the guide cylinder, the end of the pull rod inserted into the guide cylinder is of a flat square structure, the inner wall of the guide cylinder is provided with a plane matched with the outer wall of the pull rod, and a gap is provided between the end of the pull rod and the bottom wall of the guide cylinder.

5. The winch clutch assembly of claim 1, wherein the bushing has an inner bore formed with a first step surface, the pull rod has a side wall formed with a second step surface at an inner portion of the bushing, and the spring is coupled between the first step surface and the second step surface.

6. The winch clutching device of claim 1, wherein the outer end of the pull rod extends out of the sleeve when the clutch is open and retracts into the sleeve when the clutch is closed.

7. The winch clutch assembly of claim 3, wherein a third step surface is formed on the outer sidewall of the bushing, and an end surface of the cover is attached to the third step surface.

8. The winch clutching device of claim 1, wherein the lowest point and the highest point of the cam surface are each provided with a detent for locating the pin.

9. A winch comprising a clutch device according to any one of claims 1 to 7.