CN210623415U

CN210623415U - Joint coupling

Info

Publication number: CN210623415U
Application number: CN201921792956.4U
Authority: CN
Inventors: 甄胜东
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-10-23
Filing date: 2019-10-23
Publication date: 2020-05-26
Anticipated expiration: 2029-10-23

Abstract

The utility model discloses a joint coupling for connect primary shaft and secondary shaft, including first axle sleeve, secondary shaft cover, two at least bolts, V type recess, two at least first through-holes, hemisphere type arch, two at least second through-holes, nut, spring, non-metallic cover. The design of the hemispherical bulge and the V-shaped groove of the utility model, and the hemispherical bulge extends into the V-shaped groove all the time and is tangent to the two inclined planes of the V-shaped groove, is safe, has long service life and convenient installation, does not need to be marked and aligned under general conditions, and also solves the problem of easy broken shaft in the prior art; the utility model has the advantages that two shafts are not required to be connected through a multi-section universal joint, and the force transmission consumption is small; the utility model discloses the design of non-metallic cover for the transmission point is the transmission between metal and the nonmetal, can improve life.

Description

Joint coupling

Technical Field

The invention relates to a mechanical connecting piece, in particular to a joint 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.

The coupling is also called coupling, and is used for firmly connecting a driving shaft and a driven shaft in different mechanisms to rotate together and transmitting mechanical components of movement and torque.

The existing coupling transmits force through three, four or five universal joints, so that the force transmission consumption is large and the power output loss is high; or the force is transferred without a multi-section universal joint, but the shaft is easy to break, and the requirement on the alignment of the striking watch is high.

Disclosure of Invention

The invention aims to solve the technical problems that the prior art is large in force transmission consumption, easy to break a shaft, high in requirement for meter-striking alignment and the like, and provides a joint coupling which is safe, long in service life, convenient to install, generally free of meter-striking alignment and not easy to break a shaft.

A joint coupling is used for connecting a first shaft and a second shaft and comprises a first shaft sleeve, a second shaft sleeve and at least two bolts. One end in the middle of the first shaft sleeve is connected with the first shaft, and the other end of the first shaft sleeve is provided with a V-shaped groove. The periphery of the first shaft sleeve is symmetrically and uniformly provided with at least two first through holes, and the number of the first through holes is consistent with that of the bolts. One end of the middle part of the second shaft sleeve is connected with the second shaft, and the other end of the middle part of the second shaft sleeve is provided with a hemispherical bulge matched with the V-shaped groove. At least two second through holes are uniformly distributed on the periphery of the second shaft sleeve, one first through hole corresponds to one second through hole, and the diameter of the first through hole is larger than that of the second through hole. The bolt includes a head and a shank. The diameter of the outer side face of the front end of the screw rod is smaller than that of the first through hole, the outer side face of the front end of the screw rod is sleeved with a non-metal sleeve, and the outer side face of the rear end of the screw rod is provided with an external thread. The inner side surface of the second through hole is provided with an internal thread matched with the external thread. The screw rod passes through the first through hole and the second through hole in sequence and connects the first shaft sleeve with the second shaft sleeve through the nut. A spring is arranged between the head of the bolt and the first shaft sleeve, so that the hemispherical bulge always extends into the V-shaped groove and is tangent to the two inclined planes of the V-shaped groove. The diameter of the hemispherical bulge is larger than the maximum width of the opening part of the V-shaped groove.

In one embodiment, the nut is a hex nut.

The invention has the advantages and beneficial effects that:

the design of the hemispherical bulge and the V-shaped groove ensures that the hemispherical bulge always extends into the V-shaped groove and is tangent to the two inclined planes of the V-shaped groove, is safe and convenient to mount, does not need to be marked and aligned under general conditions, and also solves the problem of easy shaft breakage in the prior art; the invention does not need to connect two shafts through a multi-section universal joint, and has small transmission consumption. The design of the non-metal sleeve ensures that the transmission point is the transmission between metal and non-metal, and the service life can be prolonged.

Drawings

FIG. 1 is a schematic diagram of a state of the present invention.

Fig. 2 is another state diagram of the present invention.

Detailed Description

In order to facilitate an understanding of the invention, a full description thereof will be given below with reference to the accompanying drawings. Preferred embodiments of the present invention are shown in the drawings. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

It will be understood that when an element is referred to as being "disposed" on another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

Example 1

Referring to fig. 1 to 2, a joint coupling for connecting a first shaft 1 and a second shaft 2 includes a first shaft sleeve 3, a second shaft sleeve 4, and two bolts 5.

Wherein, the one end in the middle part of first axle sleeve 3 links to each other with first axle 1, and the other end is equipped with V type recess 6. Two first through holes 7 are symmetrically and uniformly distributed on the periphery of the first shaft sleeve 3, and the number of the first through holes 7 is consistent with that of the bolts 5.

Specifically, one end of the middle part of the second shaft sleeve 4 is connected with the second shaft 2, and the other end of the middle part of the second shaft sleeve is provided with a hemispherical bulge 8 matched with the V-shaped groove 6. Two second through holes 9 are uniformly distributed on the periphery of the second shaft sleeve 4, one first through hole 7 corresponds to one second through hole 9, and the diameter of the first through hole 7 is larger than that of the second through hole 9.

Wherein the bolt 5 comprises a head 51 and a screw 52.

Specifically, the diameter of the outer side surface of the front end of the screw 52 is smaller than that of the first through hole 7, the outer side surface of the front end of the screw 52 is sleeved with the non-metal sleeve 14, and the outer side surface of the rear end of the screw 52 is provided with the external thread 10. The inner side surface of the second through hole 9 is provided with an internal thread 11 matched with the external thread 10. The screw 52 passes through the first through hole 7 and the second through hole 9 in sequence and connects the first boss 3 with the second boss 4 through the nut 12.

Specifically, a spring 13 is arranged between the head 51 of the bolt 5 and the first shaft sleeve 3, so that the hemispherical protrusion 8 always extends into the V-shaped groove 6 and is tangent to two inclined planes of the V-shaped groove 6. The diameter of the hemispherical protrusion 8 is larger than the maximum width of the opening part of the V-shaped groove 6.

Wherein the nut 12 is a hexagonal nut.

Working principle and working process of the invention

Referring to fig. 1 and 2, the coupling of the present invention is installed without the need for registering, and the first shaft 1 and the second shaft 2 may not be aligned. When the shaft sleeve is installed, the first shaft sleeve 3 is fixed with the first shaft 1, then the second shaft sleeve 4 is fixed with the second shaft 2, the hemispherical protrusion 8 extends into the V-shaped groove 6, the screw 52 of the bolt 5 sequentially penetrates through the first through hole 7 and the second through hole 9, and the first shaft sleeve 3 is connected with the second shaft sleeve 4 through the nut 12.

The invention has the advantages and beneficial effects that:

according to the design of the hemispherical bulge 8 and the V-shaped groove 6, the hemispherical bulge 8 always extends into the V-shaped groove 6 and is tangent to the two inclined planes of the V-shaped groove 6, the installation is safe and convenient, the meter printing and alignment are not needed under general conditions, and the problem that the shaft is easy to break in the prior art is solved; the invention does not need to connect two shafts through a multi-section universal joint, and has small transmission consumption. The design of the non-metal sleeve ensures that the transmission point is the transmission between metal and non-metal, and the service life can be prolonged.

The above-mentioned embodiments only express one embodiment of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims

1. A joint coupling is used for connecting a first shaft and a second shaft and is characterized by comprising a first shaft sleeve, a second shaft sleeve and at least two bolts, wherein one end of the middle part of the first shaft sleeve is connected with the first shaft, the other end of the first shaft sleeve is provided with a V-shaped groove, at least two first through holes are symmetrically and uniformly distributed on the periphery of the first shaft sleeve, the number of the first through holes is consistent with that of the bolts, one end of the middle part of the second shaft sleeve is connected with the second shaft, the other end of the second shaft sleeve is provided with a hemispherical bulge matched with the V-shaped groove, at least two second through holes are uniformly distributed on the periphery of the second shaft sleeve, one first through hole corresponds to one second through hole, the diameter of the first through hole is larger than that of the second through hole, the bolts comprise heads and screws, the diameter of the outer side face of the front end of each screw is smaller than that, the inner side surface of the second through hole is provided with an internal thread matched with the external thread, the screw rod sequentially passes through the first through hole and the second through hole and is connected with the first shaft sleeve and the second shaft sleeve through the nuts, the spring is arranged between the head of the bolt and the first shaft sleeve, the hemispherical protrusion always extends into the V-shaped groove and is tangent to two inclined planes of the V-shaped groove, and the diameter of the hemispherical protrusion is larger than the maximum width of an opening part of the V-shaped groove.

2. The knuckle coupling of claim 1, wherein said nut is a hex nut.