CN202065365U

CN202065365U - Constituent element of swivel-joint coupling universal joint

Info

Publication number: CN202065365U
Application number: CN2011201769709U
Authority: CN
Inventors: 徐平; 李文喜; 韦中钟; 张雷
Original assignee: XIANGFAN BOYA MACHINERY CO Ltd
Current assignee: Xiangyang Boya Precision Industrial Equipments Co Ltd
Priority date: 2011-05-30
Filing date: 2011-05-30
Publication date: 2011-12-07
Anticipated expiration: 2021-05-30

Abstract

A constituent element of a swivel-joint coupling universal joint is used for a high-power transmission shaft. Cross-shaped holes which are not communicated with each other are arranged in an ear-hole fork, a bearing seat and an angular shaft assembly are arranged in a transverse hole of the ear-hole fork, and a first bearing is installed between the bearing seat and the angular shaft assembly. Two ends of a double-fork are respectively embedded into holes of the angular shaft assembly, and a second bearing is installed between the angular shaft assembly and the ear-hole fork. Four long shafts which are symmetrical to the double-fork are mounted in radial holes of the ear-hole fork, a first retainer is respectively installed on two sides of each long shaft, and first universal joint bearings are locked on the first retainers and the long shafts through first circlips for holes. Four short shafts are respectively connected with four threaded holes of the double-fork, second universal joint bearings are locked on second retainers and the short shafts through second circlips for holes. The low inertia structure enables shock to be greatly reduced and enables sliding friction to be small. The angular shaft assembly provides strong strength, thereby reducing abrasion, effectively avoiding initial failure and prolonging service life. Installation and debugging are convenient and are not limited, and torque, speed and reliability of the constituent element are remarkably improved.

Description

Trochanter axle connection universal joint constituent element

Technical field

The utility model relates to a kind of Hooks coupling universal coupling.

Background technique

Coupling is important coupling, generally adopts structure shown in Figure 3 (hookes-type), is made of flange jaw 16, cross assembly 17, jaw to be welded 18, adapter 19, connection cover jaw 20, splined shaft 21, vestlet 22.Existing coupler structure is that cross assembly 17 is fitted in flange jaw 16 and jaw to be welded 18 respectively, joins in the cover jaw 20, in use, can cause following problem:

1, the hookes-type coupling is if reach the constant speed transmission, flange jaw 16, jaw to be welded 18, connection cover jaw 20 must be contained on the jack shaft, and flange jaw 16, jaw to be welded 18, connection cover jaw 20 must be parallel or have a plane and have identical angle, because the variation of angular velocity and the difference of jack shaft torque, if operating angle or rotating speed when higher, (vibration) mechanical resonant will take place in the coupling of so this pattern, produce vibrations and noise;

2, the hookes-type coupling is made up of by a jack shaft two joints, and be arranged in parallel or have a plane and angle same, come the constant-speed transmission torque, promptly the constant-speed transmission setting type must condition up to specification, be θ 1=θ 2(Fig. 4, shown in Figure 5), arrange that installation is limited;

3, after interaxial angle improved, its warping force, speed especially reliability reduced suddenly;

4, connection cover jaw 20 and splined shaft 21 connection backs form easily and plant head, and when the connection cover jaw 20 of coupling and splined shaft 21 syndeton lengths were longer, it was bigger to join cover jaw 20 and splined shaft 21 interaxial angles.

Existing Hooks coupling universal coupling not only makes coupling arrange that installation is limited, be easy to generate vibrations and noise, the easy formation of installation are planted head, and after the coupling interaxial angle improved, its warping force, speed especially reliability reduced suddenly.

Summary of the invention

For overcoming the deficiencies in the prior art, goal of the invention of the present utility model is to provide a kind of trochanter axle connection universal joint constituent element, and is simple to realize installing, vibrating noise is little and can improve the purpose of warping force, speed, reliability.

For achieving the above object, the two ends of two forks are connected with flange through the earhole fork respectively; The hole that has cross not connect mutually in the earhole fork, in the transverse holes of earhole fork bearing support and angle axle assembly are housed, bearing one is contained between bearing support and the angle axle assembly, and the two ends of two forks embed respectively in the hole of angle axle assembly, and bearing two is contained between angle axle assembly and the earhole fork; Be contained in the radial hole of earhole fork with symmetrically arranged four major axis of two forks, retainer one is equipped with in the both sides of major axis, and universal joint bearing one therebetween is locked on retainer one and the major axis by circlip for hole one; Four minor axises connect with four tapped holes of two forks respectively, and universal joint bearing two therebetween is locked on retainer two and the minor axis by circlip for hole two.

Described universal joint bearing one respectively has four with universal joint bearing two, the band selfsealings.

Described angle axle assembly has three angle axles, is sealed by O type circle.

Described bearing one is the plane needle roller thrust bearing, has two; Bearing two is a drawn cup needle roller bearing, has four.

The utility model compared with prior art, thereby because inner connected system has been created a lower inertia vibrations are reduced greatly; Angle axle assembly (gripping the shape system) can reduce sliding friction, provide than hard intensity, product is reduced the susceptibility of bending, thereby reduce wearing and tearing, thereby Hooks coupling universal coupling early failure phenomena in can effectively avoiding using, be reduced to now 0.1% by 80% of the past, tired torque is 1.6 times of existing hookes-type coupling, the long service life of related components; Maximum outside diameter 125mm, not only Installation and Debugging are convenient, arrange install unrestricted, can not form after installing and plant head, compare the hookes-type coupling and can reduce and shake and noise; And after coupling interaxial angle (interaxial angle is 0 °～30 °) improved, its warping force, speed especially reliability were compared the hookes-type coupling and can significantly be improved, and can not reduce suddenly.Be mainly used in highway and the high-power transmission shaft of non-highway, product is particularly useful for 4 * 4 special purpose vehicle, on the military and light commercial traffic tool.

Description of drawings

Fig. 1 is a structural representation of the present utility model;

Fig. 2 is that the A of Fig. 1 is to view;

Fig. 3 is the prior art structural representation;

Fig. 4 is a prior art isokinetic conditions schematic representation;

Fig. 5 is a prior art isokinetic conditions schematic representation.

Embodiment

As shown in Figure 1 and Figure 2, the two ends of two forks 7 are connected with flange 1 through earhole fork 2 respectively; The hole that has cross not connect mutually in the earhole fork 2, in the transverse holes of earhole fork 2 bearing support 3 and angle axle assembly 6 are housed, angle axle assembly 6 has three angle axles, seal by O type circle, bearing 1 is contained between bearing support 3 and the angle axle assembly 6, bearing 1 is the plane needle roller thrust bearing, has two, between each bearing support 3 and the angle axle assembly 6 each one; The two ends of two forks 7 embed respectively in the hole of angle axle assembly 6, and bearing 25 is contained between angle axle assembly 6 and the earhole fork 2, and bearing 25 be a drawn cup needle roller bearing, has four, between each angle axle assembly 6 and earhole pitch 2 each two; Be contained in the radial hole of earhole fork 2 with two fork 7 symmetrically arranged four major axis 11 and four minor axises 12, retainer 1 is equipped with in the both sides of major axis 11, universal joint bearing 1 therebetween is locked on retainer 1 and the major axis 11 by circlip for hole 1, four minor axises 12 connect with 7 four tapped holes of two forks respectively, and universal joint bearing 2 13 therebetween is locked on retainer 2 15 and the minor axis 12 by circlip for hole 2 14; Universal joint bearing 1 respectively has four with universal joint bearing 2 13, and on each major axis 11 and the minor axis 12 each one, the band selfsealings.

Claims

1. a trochanter axle joins the universal joint constituent element, it is characterized in that: the two ends of two forks (7) are connected with flange (1) through earhole fork (2) respectively; The hole that has cross not connect mutually in the earhole fork (2), bearing support (3) and angle axle assembly (6) are housed in the transverse holes of earhole fork (2), bearing one (4) is contained between bearing support (3) and the angle axle assembly (6), the two ends of two forks (7) embed respectively in the hole of angle axle assembly (6), and bearing two (5) is contained between angle axle assembly (6) and the earhole fork (2); Be contained in the radial hole of earhole fork (2) with symmetrically arranged four major axis of two forks (7) (11), retainer one (8) is equipped with in the both sides of major axis (11), and universal joint bearing one (10) therebetween is locked on retainer one (8) and the major axis (11) by circlip for hole one (9); Four minor axises (12) connect with (7) four tapped holes of two forks respectively, and universal joint bearing two (13) therebetween is locked at retainer two (15) and minor axis (12) by circlip for hole two (14).

2. trochanter axle connection universal joint constituent element according to claim 1, it is characterized in that: described universal joint bearing one (10) respectively has four with universal joint bearing two (13), the band selfsealings.

3. trochanter axle connection universal joint constituent element according to claim 1, it is characterized in that: described angle axle assembly (6) has three angle axles, is sealed by O type circle.

4. trochanter axle connection universal joint constituent element according to claim 1, it is characterized in that: described bearing one (4) has two for the plane needle roller thrust bearing; Bearing two (5) is a drawn cup needle roller bearing, has four.