CN218440292U

CN218440292U - Universal coupling capable of preventing connecting shaft from being disconnected

Info

Publication number: CN218440292U
Application number: CN202222400345.9U
Authority: CN
Inventors: 傅海锋; 王俊男
Original assignee: HANGZHOU DINGJIANG MACHINERY CO Ltd
Current assignee: HANGZHOU DINGJIANG MACHINERY CO Ltd
Priority date: 2022-09-09
Filing date: 2022-09-09
Publication date: 2023-02-03
Anticipated expiration: 2032-09-09

Abstract

The utility model discloses a prevent universal joint of connecting axle disjointing, including first universal joint fork and second universal joint fork, first universal joint fork is connected with the connecting axle, the spline has been seted up to the connecting axle outer wall, the second universal joint fork is connected with the connecting shaft section of thick bamboo, seted up in the connecting shaft section of thick bamboo with the spline groove of spline adaptation, spline inslot symmetry is opened has two spacing grooves, the spacing groove does not link up the tip of connecting shaft section of thick bamboo, two draw-in grooves have been seted up with the bottom symmetry on the terminal top of connecting axle, install pressure spring and fixture block in the draw-in groove, the fixture block warp pressure spring pushes up in the spacing inslot. Has the advantages that: because the fixture block is blocked in the limiting groove, when the connecting shaft is impacted by external force, the connecting shaft is not easy to be separated from the connecting shaft cylinder, and the connecting shaft is more stable and safe.

Description

Universal coupling capable of preventing connecting shaft from being disconnected

Technical Field

The utility model belongs to the technical field of universal joint, concretely relates to prevent universal joint of connecting axle disjointing.

Background

The universal coupling is one of the most commonly used couplings, and by using the structural characteristics of the universal coupling, two shafts which are not on the same axis or have larger angle of folding or larger axial movement can continuously rotate at equal angular speed, and reliably transmit torque and movement. The torque transmission device can be widely applied to transmission of torque in mechanical shafting in lifting, engineering transportation, mines, petroleum, ships, coal, rubber, paper machines and other heavy machinery industries.

When the universal coupling is used, the connecting shaft of one universal joint fork can perform telescopic motion in the connecting sleeve of the other universal joint fork and synchronously rotate through spline fit, but due to the lack of a limiting structure, when the universal coupling bears external impact, the connecting shaft is easily loosened from the connecting sleeve, so that the stability is poor, and the safety is low.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a prevent universal joint of connecting axle disjointing to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above purpose, the utility model provides a following technical scheme: the utility model provides a prevent universal joint of connecting axle disjointing, includes first universal joint fork and second universal joint fork, first universal joint fork is connected with the connecting axle, the spline has been seted up to the connecting axle outer wall, the second universal joint fork is connected with a connecting shaft section of thick bamboo, set up in the connecting shaft section of thick bamboo with the spline groove of spline adaptation, spline inslot symmetry is opened has two spacing grooves, the spacing groove does not link up the tip of a connecting shaft section of thick bamboo, two draw-in grooves have been seted up with the bottom symmetry on the terminal top of connecting axle, install pressure spring and fixture block in the draw-in groove, the fixture block warp pressure spring pushes up in the spacing inslot.

Preferably, the clamping block can completely enter the clamping groove and cannot completely enter the limiting groove.

Preferably, the top end and the bottom end of the connecting shaft cylinder are provided with screw holes penetrating through the limiting groove, bolts are installed on the connecting shaft cylinder, and when the clamping block is pulled to the leftmost end of the limiting groove, the clamping block corresponds to the screw holes.

Preferably, the connecting shaft cylinder is provided with a groove for hiding the head end of the bolt.

Preferably, the first universal joint fork and the connecting shaft are integrally formed, and the second universal joint fork and the connecting shaft barrel are integrally formed.

Preferably, the fixture block is made of high-hardness and high-wear-resistance alloy materials.

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

1. because the fixture block is blocked in the limiting groove, when the connecting shaft is impacted by external force, the connecting shaft is not easy to be separated from the connecting shaft cylinder, and the connecting shaft is more stable and safe.

Drawings

FIG. 1 is a schematic sectional view of the present invention;

fig. 2 is a schematic top view of the present invention.

In the figure: 1. a first universal joint fork; 2. a second yoke; 3. a connecting shaft; 4. a spline; 5. connecting the shaft cylinder; 6. a spline groove; 7. a limiting groove; 8. a card slot; 9. a pressure spring; 10. a clamping block; 11. a bolt; 12. and (4) 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 work belong to the protection scope of the present invention.

Example 1: referring to fig. 1-2, the present invention provides a technical solution: a universal coupling for preventing a connecting shaft from being disconnected comprises a first universal joint fork 1 and a second universal joint fork 2, wherein the first universal joint fork 1 is connected with a connecting shaft 3, the outer wall of the connecting shaft 3 is provided with a spline 4, the second universal joint fork 2 is connected with a connecting shaft barrel 5, a spline groove 6 matched with the spline 4 is formed in the connecting shaft barrel 5, two limiting grooves 7 are symmetrically formed in the spline groove 6, the limiting grooves 7 do not penetrate through the end part of the connecting shaft barrel 5, two clamping grooves 8 are symmetrically formed in the top end and the bottom end of the tail end of the connecting shaft 3, a pressure spring 9 and a clamping block 10 are mounted in the clamping grooves 8, and the clamping block 10 is propped in the limiting grooves 7 through the pressure spring 9; during installation, the two clamping blocks 10 are completely pressed into the clamping grooves 8, then the clamping blocks 10 are aligned with the bolts 11, and then the connecting shaft 3 is inserted into the connecting shaft barrel 5, so that the clamping blocks 10 are pressed into the limiting grooves 7 under the pressure action of the pressure spring 9, and further when the first universal joint yoke 1 and the connecting shaft 3 rotate, the connecting shaft barrel 5 and the second universal joint yoke 2 can be driven to rotate through the limiting fit of the spline 4 and the spline groove 6, and the connecting shaft 3 can stretch and retract in the spline groove 6; meanwhile, the clamping block 10 is clamped in the limiting groove 7, so that the connecting shaft 3 is not easy to be separated from the connecting shaft barrel 5 when being impacted by external force, and the safety is more stable.

Specifically, the fixture block 10 can completely enter the fixture groove 8 and cannot completely enter the limiting groove 7; in this embodiment, avoid fixture block 10 to get into the spacing inslot 7 completely and lead to connecting axle 3 pine to take off, and can get into draw-in groove 8 completely, convenient dismantlement.

Specifically, the top end and the bottom end of the connecting shaft cylinder 5 are provided with screw holes penetrating through the limiting groove 7, and are provided with bolts 11, and when the fixture block 10 is pulled to the leftmost end of the limiting groove 7, the fixture block 10 corresponds to the screw holes; in this embodiment, when the connection shaft 3 needs to be detached, the clamping block 10 is pulled to the leftmost end of the limiting groove 7 through the connection shaft 3, then the two bolts 11 are screwed off, the external rod is inserted into the screw hole to push the clamping block 10 back into the clamping groove 8, and then the connection shaft 3 is pulled out.

Specifically, the connecting shaft cylinder 5 is provided with a groove 12 for hiding the head end of the bolt 11; in this embodiment, the bolt 11 is thus less likely to be touched, and is more stable and safe.

Specifically, the first universal joint yoke 1 and the connecting shaft 3 are integrally formed, and the second universal joint yoke 2 and the connecting shaft barrel 5 are integrally formed; in this embodiment, be convenient for integrated into one piece manufacturing, improve machining efficiency, and the junction is more stable.

Specifically, the fixture block 10 is made of a high-hardness and high-wear-resistance alloy material; in the embodiment, the fixture block 10 is durable and not easy to deform, and has high stability.

For the convenience of understanding the technical solution of the present invention, the following detailed description is made on the working principle or the operation mode of the present invention in the practical process.

The working principle is as follows: during installation, the two clamping blocks 10 are completely pressed into the clamping grooves 8, then the clamping blocks 10 are aligned with the bolts 11, and then the connecting shaft 3 is inserted into the connecting shaft barrel 5, so that the clamping blocks 10 are pressed into the limiting grooves 7 under the pressure action of the pressure spring 9, and further when the first universal joint yoke 1 and the connecting shaft 3 rotate, the connecting shaft barrel 5 and the second universal joint yoke 2 can be driven to rotate through the limiting fit of the spline 4 and the spline groove 6, and the connecting shaft 3 can stretch and retract in the spline groove 6; meanwhile, the clamping block 10 is clamped in the limiting groove 7, so that the connecting shaft 3 is not easy to be separated from the connecting shaft barrel 5 when being impacted by external force, and the connecting shaft is more stable and safe; when the clamping block 10 needs to be detached, the clamping block 10 is pulled to the leftmost end of the limiting groove 7 only through the connecting shaft 3, then the two bolts 11 are screwed off, the external rod piece is inserted into the screw hole to push the clamping block 10 back into the clamping groove 8, and then the connecting shaft 3 is pulled out.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a prevent universal joint of connecting axle disjointing, a serial communication port, including first universal joint fork (1) and second universal joint fork (2), first universal joint fork (1) is connected with connecting axle (3), spline (4) have been seted up to connecting axle (3) outer wall, second universal joint fork (2) are connected with connecting shaft barrel (5), set up in connecting shaft barrel (5) with spline groove (6) of spline (4) adaptation, spline groove (6) internal symmetry is opened has two spacing grooves (7), spacing groove (7) do not link up the tip of connecting shaft barrel (5), two draw-in grooves (8) have been seted up with the bottom symmetry on connecting axle (3) terminal top, install pressure spring (9) and fixture block (10) in draw-in groove (8), fixture block (10) warp pressure spring (9) top is in spacing groove (7).

2. A universal joint coupling preventing a connecting shaft from being disconnected according to claim 1, wherein the clamping block (10) can completely enter the clamping groove (8) and can not completely enter the limiting groove (7).

3. A universal joint coupling preventing a connecting shaft from being disconnected according to claim 1, wherein a screw hole penetrating through the limiting groove (7) is formed in the top end and the bottom end of the connecting shaft cylinder (5), a bolt (11) is installed, and when the clamping block (10) is pulled to the leftmost end of the limiting groove (7), the clamping block (10) corresponds to the screw hole.

4. A universal joint coupling preventing uncoupling according to claim 3, characterized in that said connecting shaft tube (5) is provided with a groove (12) for hiding the head end of said bolt (11).

5. A universal joint coupling preventing a connecting shaft from being disconnected according to claim 1, wherein the first universal joint yoke (1) is integrally formed with the connecting shaft (3), and the second universal joint yoke (2) is integrally formed with the connecting shaft barrel (5).

6. A universal joint coupling preventing disconnection of a connecting shaft according to claim 1, wherein said fixture block (10) is made of high hardness and high wear-resistant alloy material.