CN217002771U - Detachable outer flat key embedded plum coupling - Google Patents

Abstract

The utility model discloses a detachable outer flat key embedded plum blossom coupling, which comprises a pump end coupling and a rotating shaft, wherein an elastic body is arranged at the central position of one end of the pump end coupling, the elastic body is embedded in the pump end coupling, one end of the pump end coupling is provided with a shaft end coupling, the shaft end coupling is inserted into the center of one end of the rotating shaft, a fastening piece is arranged in one end of the shaft end coupling, and the fastening piece penetrates through the shaft end coupling to be arranged. The length space is saved under the condition that the coupler completely enters the rotating shaft; the shaft end coupler is provided with the dismounting screw thread, so that the convenience of dismounting the shaft end coupler after being mounted in the embedded shaft can be ensured. The form has small overall dimension, small occupied space, light weight, compact structure and easy connection with a pump end; the bearing capacity is strong, the rigidity change range is wide, the transmission torque is large, and the efficiency is high; the disassembly is convenient, the working performance is stable, the aging is not easy, and the maintenance is easy.

Description

Detachable outer flat key embedded plum coupling

Technical Field

The utility model relates to the technical field of couplers, in particular to a detachable outer flat key embedded plum blossom coupler.

Background

The coupling is a mechanical part for firmly coupling a driving shaft and a driven shaft in different mechanisms to rotate together and transmitting motion and torque. Sometimes also to couple the shaft with other parts (e.g. gears, pulleys, etc.). Usually, the two halves are combined and fastened to the two shaft ends by a key or a tight fit, and then the two halves are connected in a certain way. The coupling can compensate the offset (including axial offset, radial offset, angular offset or comprehensive offset) between the two shafts due to inaccurate manufacture and installation, deformation or thermal expansion in work and the like; and shock mitigation and absorption. The plum coupling has the following characteristics: the coupler does not need lubrication, is convenient to maintain, has less workload and can continuously run for a long time. The high-strength polyurethane elastic element is wear-resistant and oil-resistant, and has the advantages of large bearing capacity, long service life, safety and reliability. The working is stable and reliable, and the vibration reduction, buffering and electric insulation performance is good. Has larger axial, radial and angular compensation capability. The structure is simple, the radial size is small, the weight is light, the rotational inertia is small, and the device is suitable for medium-high speed occasions.

However, the existing plum coupling is mainly formed by inserting an inner flat key into a shaft for connection. Its advantages are buffering and damping, high dynamic performance of axle system, and stable working performance. However, after the inner flat key coupler is inserted into the rotating shaft, the outer diameter and the axial dimension of the shaft are both large, and the requirements of large load and miniaturization are difficult to be considered when the inner flat key coupler is applied to a compact connecting space.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a detachable outer flat key embedded plum blossom coupling, and aims to solve the problems that after an inner flat key coupling is inserted into a rotating shaft, the outer diameter size and the axial size of the shaft are large, and the requirements of large load and miniaturization are difficult to meet when the inner flat key coupling is applied to a compact connecting space.

The utility model is realized by the following steps:

the utility model provides an embedded plum blossom shaft coupling of detachable outer parallel key, includes pump end shaft coupling and rotation axis, the one end central point of pump end shaft coupling puts and is provided with the elastomer, the elastomer embedding is in the inside of pump end shaft coupling, the one end of pump end shaft coupling is provided with the axle head shaft coupling, the axle head shaft coupling inserts the one end center department at the rotation axis, and the inside fastener that is provided with of one end of axle head shaft coupling, the fastener runs through the axle head shaft coupling and sets up, and connects through screw-thread fit's mode between fastener and the rotation axis.

Furthermore, a limiting groove is formed in the center of one end of the pump end coupler, the limiting groove and the elastic body are clamped with each other, the elastic body is limited according to the position of the elastic body, and therefore the elastic body can be installed more conveniently.

Furthermore, a locking groove is formed in the center of one end of the shaft end coupler, a locking hole is formed in the center of the bottom end of the inner portion of the locking groove in a penetrating mode, and the shaft end coupler is connected with the rotating shaft through the locking groove so as to be convenient to use a fastener.

Furthermore, the one end outside of axle head shaft coupling is provided with the screens circle, fixed connection between screens circle and the axle head shaft coupling is for the convenience of fixing a position the axle head shaft coupling through setting up like this.

Furthermore, the screens groove has been seted up to the one end of rotation axis, block each other between screens groove and the screens circle, through setting up like this in order to let laminating inseparabler between axle head shaft coupling and the rotation axis.

Furthermore, the constant head tank has been seted up to the inside bottom in screens groove, mutual block between constant head tank and the axle head shaft coupling is the inside of in order to let the axle head shaft coupling embedding at the rotation axis through setting up like this to can reduce occuping of space.

Furthermore, the center of the bottom end in the positioning groove is provided with a thread groove, the thread groove and the fastening piece are matched with each other, and the fastening piece is convenient to mount through the arrangement.

Compared with the prior art, the utility model has the beneficial effects that: the utility model has the characteristics of reasonable structure and convenient assembly, and the length space is saved under the condition that the coupler completely enters the rotating shaft; the shaft end coupler is provided with the dismounting screw thread, so that the shaft end coupler can be guaranteed to be convenient to dismount after being mounted in the embedded shaft. The form has small overall dimension, small occupied space, light weight, compact structure and easy connection with a pump end; the bearing capacity is strong, the rigidity change range is wide, the transmission torque is large, and the efficiency is high; the disassembly is convenient, the working performance is stable, the aging is not easy, and the maintenance is easy.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

Fig. 1 is a schematic structural view of a detachable external flat key embedded plum coupling of the present invention;

FIG. 2 is a schematic structural diagram of a pump end coupler of a detachable outer flat key embedded plum blossom coupler of the utility model;

fig. 3 is a schematic structural diagram of a shaft end coupler of a detachable external flat key embedded plum blossom coupler of the present invention;

fig. 4 is a schematic structural diagram of a rotating shaft of a detachable external flat key embedded type double offset ring coupler according to the present invention.

In the figure: 1. a pump end coupling; 11. a limiting groove; 2. an elastomer; 3. a shaft end coupling; 31. a position locking groove; 311. a locking hole; 32. a clamping ring; 4. a fastener; 5. a rotating shaft; 51. a thread groove; 52. positioning a groove; 53. screens the groove.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings of the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention. Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, which can be obtained by a person skilled in the art without inventive efforts based on the embodiments of the present invention, are within the scope of protection of the present invention.

Referring to fig. 1-4, a detachable outer flat key embedded plum blossom coupling comprises a pump end coupling 1 and a rotating shaft 5, wherein a limiting groove 11 is formed in the center of one end of the pump end coupling 1, the limiting groove 11 and an elastic body 2 are clamped with each other, and the position of the elastic body 2 is limited through the arrangement, so that the elastic body 2 can be more conveniently installed; the center of one end of the pump end coupling 1 is provided with the elastic body 2, the elastic body 2 is embedded in the pump end coupling 1, one end of the pump end coupling 1 is provided with the shaft end coupling 3, the center of one end of the shaft end coupling 3 is provided with the locking groove 31, the center of the bottom end in the locking groove 31 is provided with the locking hole 311 in a penetrating manner, and the arrangement is convenient for connecting the shaft end coupling 3 with the rotating shaft 5 by using the fastener 4; the clamping ring 32 is arranged on the outer side of one end of the shaft end coupler 3, the clamping ring 32 is fixedly connected with the shaft end coupler 3, and the arrangement is convenient for positioning the position of the shaft end coupler 3;

the shaft end coupler 3 is inserted into the center of one end of the rotating shaft 5, one end of the rotating shaft 5 is provided with a clamping groove 53, the clamping groove 53 and the clamping ring 32 are mutually clamped, and the shaft end coupler 3 and the rotating shaft 5 are more tightly attached through the arrangement; the positioning groove 52 is formed in the bottom end of the clamping groove 53, the positioning groove 52 and the shaft end coupler 3 are clamped with each other, and the shaft end coupler 3 is embedded into the rotating shaft 5 conveniently through the arrangement, so that the occupied space can be reduced; a fastening piece 4 is arranged in one end of the shaft end coupler 3, the fastening piece 4 penetrates through the shaft end coupler 3 to be arranged, and the fastening piece 4 is connected with the rotating shaft 5 in a threaded matching mode; the positioning groove 52 is provided with a thread groove 51 at the center of the inner bottom end thereof, and the thread groove 51 and the fastening member 4 are engaged with each other, so that the fastening member 4 can be easily installed.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (7)

1. The utility model provides an embedded plum blossom shaft coupling of detachable outer parallel key, includes pump end shaft coupling (1) and rotation axis (5), its characterized in that: the utility model discloses a pump end coupling, including pump end shaft coupling (1), one end center position of pump end shaft coupling (1) is provided with elastomer (2), elastomer (2) embedding is in the inside of pump end shaft coupling (1), the one end of pump end shaft coupling (1) is provided with axle head shaft coupling (3), axle head shaft coupling (3) insert the one end center department at rotation axis (5), and the one end inside of axle head shaft coupling (3) is provided with fastener (4), fastener (4) run through axle head shaft coupling (3) and set up, and connect through screw-thread fit's mode between fastener (4) and rotation axis (5).

2. The embedded plum blossom coupling of detachable outer parallel key of claim 1, characterized in that, pump end shaft coupling (1)'s one end center department has seted up spacing groove (11), block each other between spacing groove (11) and elastomer (2).

3. The embedded double offset ring coupling of detachable outer parallel key of claim 1, characterized in that, the one end center department of axle head shaft coupling (3) has seted up the position locking groove (31), the inside bottom center department of position locking groove (31) has run through and has seted up locking hole (311).

4. The embedded double offset ring coupling of detachable outer parallel key of claim 3, characterized in that, the one end outside of axle head coupling (3) is provided with screens circle (32), fixed connection between screens circle (32) and axle head coupling (3).

5. The embedded plum blossom shaft coupling of detachable outer flat key of claim 1, characterized in that, screens groove (53) has been seted up to the one end of rotation axis (5), block each other between screens groove (53) and screens circle (32).

6. The embedded plum blossom coupling of detachable outer parallel key of claim 5, characterized in that, the inside bottom of screens groove (53) has seted up constant head tank (52), block each other between constant head tank (52) and axle head coupling (3).

7. The embedded plum blossom shaft coupling of detachable outer flat key of claim 6, characterized in that, the inside bottom center department of constant head tank (52) has seted up thread groove (51), mutually support between thread groove (51) and fastener (4).

Images