CN211145163U - Drum-shaped tooth type coupling - Google Patents

Abstract

The utility model discloses a cydariform tooth-like shaft coupling relates to the shaft coupling field, including initiative half-coupling and driven half-coupling, initiative half-coupling and driven half-coupling are close to department's cover each other and are equipped with the external tooth axle sleeve and with external tooth axle sleeve meshing's ring gear, and the both ends of ring gear are provided with the locating part. There is ring gear and the more problem of outer tooth shaft sleeve easy emergence along shaft coupling axial direction displacement to prior art, the utility model provides a drum-shaped tooth type shaft coupling, in the course of the work, through the setting of locating part, the displacement that the restriction ring gear takes place for outer tooth shaft sleeve, prevents that ring gear and outer tooth shaft sleeve from easily taking place along shaft coupling axial direction displacement more, the phenomenon that breaks away from even takes place.

Description

Drum-shaped tooth type coupling

Technical Field

The utility model relates to a shaft coupling field, more specifically says that it relates to a drum-shaped tooth-like shaft coupling.

Background

The coupling is a device for connecting two shafts or a shaft and a rotating part, rotating together in the process of transmitting motion and power and not separating under normal conditions. Sometimes it is used as a safety device to prevent the coupled machine parts from bearing excessive load, and it plays the role of overload protection.

For the existing drum-shaped tooth type coupling, the drum-shaped tooth type coupling comprises two half couplings, teeth are arranged at one ends, close to each other, of the two half couplings, and the teeth of the two half couplings are meshed with the same inner gear ring. The drum-shaped tooth coupling is a rigid-flexible coupling, and is composed of internal gear rings with the same number of teeth, flange half-coupling with external teeth and other parts. The external teeth are divided into two tooth forms of straight teeth and crowned teeth.

When the driving half coupler is used, the driving half coupler drives the inner gear ring to rotate, the inner gear ring simultaneously drives the driven inner gear ring to rotate, and because the inner gear ring and the outer gear shaft sleeve are in meshed connection, the inner gear ring and the outer gear shaft sleeve are easy to displace along the axial direction of the coupler in the rotating process, so that the inner gear ring and the outer gear shaft sleeve are greatly dislocated or even separated, and the work of the coupler is influenced.

SUMMERY OF THE UTILITY MODEL

There is ring gear and the more problem of outer tooth axle sleeve easy emergence along shaft coupling axial direction displacement to prior art, the utility model aims at providing a cydariform tooth-like shaft coupling, it has the advantage that reduces ring gear and outer tooth axle sleeve and take place along shaft coupling axial direction displacement probability.

In order to achieve the above purpose, the utility model provides a following technical scheme:

the drum-shaped tooth type coupling comprises a driving half coupling and a driven half coupling, wherein an external tooth shaft sleeve and an internal tooth ring meshed with the external tooth shaft sleeve are sleeved at the position where the driving half coupling and the driven half coupling are close to each other, and limiting parts are arranged at two ends of the internal tooth ring.

Through the technical scheme, in the practical application, a worker installs the coupler, the driving half coupler drives the inner gear ring to rotate, the inner gear ring drives the driven half coupler to rotate, in the process, the limiting part limits the position of the inner gear ring, so that the relative position of the inner gear ring and the outer gear shaft sleeve is limited, the probability of displacement of the inner gear ring and the outer gear shaft sleeve along the axial direction of the coupler is reduced, and the service life of the coupler is prolonged.

Furthermore, the limiting part is set to be a limiting nail, and a rubber block is fixed at one end of the limiting nail close to the driving half-coupling or the driven half-coupling.

Through above-mentioned technical scheme, in the in-service use, the displacement that the relative external tooth axle sleeve of stop pin restriction ring gear can produce, the rubber block reduces the striking between ring gear and the external tooth axle sleeve and the noise of production.

Further, the rubber block is set to be a first rubber ring, and the thickness of the first rubber ring is equal to the distance between the driving half coupler or the driven half coupler and the inner gear ring.

Through above-mentioned technical scheme, in the in-service use, first rubber circle just sets up between ring gear and external tooth axle sleeve, sets up to first rubber circle from the block rubber, has increased the efficiency that first rubber circle reduced the striking between ring gear and the external tooth axle sleeve and the noise that produces.

Furthermore, two the one end that the external tooth axle sleeve is close to each other all is provided with the sealing washer.

Through above-mentioned technical scheme, in the in-service use, sealing washer and first rubber cooperation for the tooth of ring gear and external tooth axle sleeve is in airtight state, keeps operational environment better.

Furthermore, locating rings are fixed on the outer tooth shaft sleeve at the sealing ring.

Through above-mentioned technical scheme, in the in-service use, the position of the fixed sealing washer of staff is made things convenient for to the holding ring, prevents that the sealing washer from easily taking off the external tooth axle sleeve in the course of the work.

Furthermore, the section of the positioning ring is triangular, and one side face of the positioning ring is fixed with the outer side wall of the outer tooth shaft sleeve.

Through above-mentioned technical scheme, in the in-service use, the section is triangle-shaped's holding ring, changes the position of fixed seal circle, strengthens being connected between sealing washer and the holding ring.

Furthermore, the limiting part is a limiting ring, and the limiting ring is located at one side of the two ends of the inner gear ring close to the driving half coupler or the driven half coupler.

Through the technical scheme, in the practical application, the limiting ring limits the displacement of the inner gear ring relative to the outer gear shaft sleeve, and prevents the inner gear ring and the outer gear shaft sleeve from generating large displacement along the axial direction of the coupler to influence the normal work of the coupler.

Furthermore, a second rubber ring is arranged between the limiting ring and the teeth of the external tooth shaft sleeve.

Through the technical scheme, in practical application, the second sealing ring is used for reducing friction and collision between the inner gear ring and the outer gear shaft sleeve, and the service life of the coupler is prolonged.

Compared with the prior art, the beneficial effects of the utility model are that:

(1) the limiting piece is arranged to limit the relative position of the inner gear ring and the outer gear shaft sleeve, so that the probability of displacement of the inner gear ring and the outer gear shaft sleeve along the axial direction of the coupler is reduced, and the service life of the coupler is prolonged;

(2) furthermore, through the arrangement of the first rubber ring and the sealing ring, the teeth of the inner gear ring and the outer gear shaft sleeve work in a sealed environment, and the working states of the inner gear ring and the outer gear shaft sleeve are kept better;

(3) furthermore, the probability that the inner gear ring and the outer gear shaft sleeve displace along the axial direction of the coupler is reduced through the arrangement of the limiting ring and the second rubber ring.

Drawings

FIG. 1 is a schematic overall structure diagram of the first embodiment;

FIG. 2 is a cross-sectional view of the center plane of the embodiment taken along the axial direction of the coupling;

FIG. 3 is a burst photograph of the first embodiment;

FIG. 4 is a burst photograph of the second embodiment;

fig. 5 is a sectional view of the center plane in the axial direction of the coupling according to the second embodiment.

Reference numerals: 1. a driving half coupling; 2. a driven half coupling; 3. an external gear shaft sleeve; 4. positioning holes; 41. a positioning column; 5. an inner gear ring; 6. a limiting member; 61. a limit pin; 62. a first rubber ring; 63. a limiting ring; 64. a second rubber ring; 7. a seal ring; 71. a retaining ring.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

The first embodiment is as follows:

a drum-shaped tooth-type coupling is shown in figures 1 and 2 and comprises a driving half coupling 1 and a driven half coupling 2, wherein outer side walls of the driving half coupling 1 and the driven half coupling 2 are respectively sleeved with a T-shaped outer tooth shaft sleeve 3, cylindrical positioning holes 4 are vertically and coaxially formed in the outer tooth shaft sleeves 3 and the driving half coupling 1 or the driven half coupling 2, and positioning columns 41 are inserted into the positioning holes 4; the mutual close place of two external tooth axle sleeves 3 is equipped with ring gear 5 with external tooth axle sleeve 3 meshing, and ring gear 5's both ends are provided with locating part 6.

The limiting piece 6 is set to be a limiting nail 61, the length direction of the limiting nail 61 is perpendicular to the axial direction of the driving coupler, the nail cap of the limiting nail 61 is located on the outer side wall of the inner gear ring 5 and is abutted against the outer side wall of the inner gear ring 5, and the limiting nail 61 and the inner gear ring 5 can adopt fixing modes such as spiral fixing and the like.

As shown in fig. 2 and 3, one end of the limit pin 61 close to the driving half-coupling 1 or the driven half-coupling 2 is fixed with a rubber block, in this embodiment, the rubber block is set to be a first rubber ring 62, the thickness of the first rubber ring 62 is equal to the distance between the driving half-coupling 1 or the driven half-coupling 2 and the inner gear ring 5, the inner side and the outer side of the first rubber ring 62 are respectively abutted to the outer gear sleeve 3 and the inner gear ring 5, and one side of each of the two first rubber rings 62 close to each other is abutted to the outer gear sleeve 3 close to each other.

One ends, close to each other, of the two external tooth shaft sleeves 3 are respectively fixed with a sealing ring 7, and one side, far away from the external tooth shaft sleeves 3, of each sealing ring 7 is abutted against the inner side wall of the inner gear ring 5; and the outer tooth shaft sleeve 3 is fixed with a positioning ring 71 at the position of the sealing ring 7, the section of the positioning ring 71 is triangular, one side surface of the positioning ring 71 is fixed with the outer side wall of the outer tooth shaft sleeve 3, and the sealing ring 7 is inserted into the positioning ring 71.

The implementation principle of the embodiment is as follows: firstly, the outer tooth shaft sleeve 3 is sleeved on the outer sides of the driving half coupling 1 and the driven half coupling 2 by a worker, then the sealing ring 7 is fixed on the positioning ring 71, and the sealing ring 7 can be installed firstly; sleeving the inner gear ring 5 to the position where the two outer gear shaft sleeves 3 are close to each other, so that the inner gear ring 5 is in meshing fit with the outer gear shaft sleeves 3, and then installing a limit nail 61 and a first rubber ring 62 to the two ends of the inner gear ring 5; the driving shaft is inserted into the driving half coupling 1, and the driven shaft is inserted into the driven half coupling 2, so that the work is started.

Example two:

a drum-shaped tooth coupling, as shown in fig. 4 and 5, differs from the first embodiment in that a limiting member 6 of a driving half coupling 1 or a driven half coupling 2 is provided as a limiting ring 63, and the limiting ring 63 is located at one side of the two ends of an inner gear ring 5 close to the driving half coupling 1 or the driven half coupling 2; the outer side wall of the limiting ring 63 is fixed with the inner side wall of the inner gear ring 5, and the inner side wall of the limiting ring 63 is arranged in a clearance with the outer side wall of the outer gear shaft sleeve 3.

A second rubber ring 64 is arranged between the limiting ring 63 and the teeth of the external gear shaft sleeve 3, and the second rubber ring 64 fills the gap between the limiting ring 63 and the teeth of the external gear shaft sleeve 3.

The implementation principle of the embodiment is as follows: firstly, the outer tooth shaft sleeve 3 is sleeved on the outer sides of the driving half coupling 1 and the driven half coupling 2 by a worker, then the sealing ring 7 is fixed on the positioning ring 71, and the sealing ring 7 can be installed firstly; fixing a second rubber ring 64 on the inner side of a limiting ring 63 of the inner gear ring 5, sleeving the inner gear ring 5 to the position where the two outer gear shaft sleeves 3 are close to each other, so that the inner gear ring 5 is in meshing fit with the outer gear shaft sleeves 3, and installing a limiting nail 61 and a first rubber ring 62 to one end, far away from the limiting ring 63, of the inner gear ring 5; the driving shaft is inserted into the driving half coupling 1, and the driven shaft is inserted into the driven half coupling 2, so that the work is started.

The embodiments of the present invention are preferred embodiments of the present invention, and the scope of the present invention is not limited by these embodiments, so: all equivalent changes made according to the structure, shape and principle of the invention are covered by the protection scope of the invention.

Claims (8)

1. The utility model provides a cydariform tooth coupling, includes initiative half coupling (1) and driven half coupling (2), initiative half coupling (1) with driven half coupling (2) are close to department cover each other and are equipped with external tooth axle sleeve (3) and with ring gear (5) of external tooth axle sleeve (3) meshing, its characterized in that, the both ends of ring gear (5) are provided with locating part (6).

2. Drum coupling according to claim 1, characterized in that the stop (6) is arranged as a stop pin (61), and that a rubber block is fixed to the stop pin (61) near one end of the driving coupling half (1) or the driven coupling half (2).

3. A drum tooth coupling according to claim 2, characterized in that the rubber blocks are provided as first rubber rings (62), and the thickness of the first rubber rings (62) is equal to the distance between the driving coupling part (1) or the driven coupling part (2) and the inner gear ring (5).

4. Drum coupling according to claim 3, characterized in that the ends of the two externally toothed bushings (3) that are close to each other are provided with a sealing ring (7).

5. Drum coupling according to claim 4, characterized in that said external toothed bushing (3) is fixed with a retaining ring (71) at said sealing ring (7).

6. The drum tooth coupling according to claim 5, characterized in that said retaining ring (71) is triangular in cross-section, one side of said retaining ring (71) being fixed to the outer side wall of said outer sleeve (3).

7. Drum tooth coupling according to claim 1, characterized in that the stop (6) is arranged as a stop ring (63), the stop ring (63) being located at the side of the inner gear ring (5) on both ends near the driving half coupling (1) or the driven half coupling (2).

8. Drum-shaped tooth coupling according to claim 7, characterized in that a second rubber ring (64) is arranged between the stop ring (63) and the teeth of the externally toothed sleeve (3).

Images