CN204113936U - A kind of centring type three fork arm slide type Hooks coupling universal coupling - Google Patents

Abstract

The utility model discloses a kind of centring type three fork arm slide type Hooks coupling universal coupling, comprising: driving shaft, land, shell, slide bar, joint shaft bearing, three fork arms, trident reed, be located by connecting dish, driven axle, described driving shaft and described land are fixed, described land is fixedly connected with described shell, described driven axle and described be located by connecting coil fixing, described three fork arms are fixed on described shell, described joint shaft bearing is connected with described slide bar, be located by connecting described in one end of described slide bar is arranged on the slideway of dish, the other end of described slide bar is arranged on described three fork arms by joint shaft bearing, described trident reed and the described dish that is located by connecting are bolted, the axial force that described trident reed produces when can eliminate diaxon transmitting torque, not only play the effect axially connected and also there is buffer shock-absorbing performance, a kind of centring type three fork arm of the utility model slide type Hooks coupling universal coupling has axial centering, and angular compensatory ability is large, the advantage that damping property is good.

Description

A centering tripod lever sliding type universal coupling

technical field

The utility model relates to a constant angular velocity universal joint, in particular to a centering type tripod sliding type universal joint used in a mechanical transmission device.

Background technique

The universal coupling is a mechanical component that realizes the joint rotation of the two shafts to transmit motion when the driving shaft and the driven shaft are not on the same axis and there is an angle between the axes. Universal couplings have various structural types and large angular compensation. The common ones are ball cage type, cross shaft type, ball fork type, tripod rod type, etc. Ball cage type universal couplings are generally used. The structure of the device is complex, the manufacturing cost is high, and the carrying capacity is limited.

For the tripod-type universal coupling, there has been a lack of centering products. In order to solve the above problems, the utility model provides a large transmission torque, good vibration damping performance, large angular compensation ability, simple processing and A centering tripod sliding universal joint that is easy to disassemble.

Contents of the invention

The technical scheme adopted by the utility model is as follows: a centering tripod lever sliding type universal coupling, including: driving shaft, connection plate, shell, sliding rod, joint bearing, tripod rod, tripod reed, positioning Connecting plate, passive shaft; the driving shaft is fixed to the connecting plate, the connecting plate is fixedly connected to the housing, the passive shaft is fixed to the positioning connecting plate, and the tripod is fixed to the housing , the joint bearing is connected with the slide bar, one end of the slide bar is installed on the slideway of the positioning connection plate, the other end of the slide bar is installed on the tripod rod through the joint bearing, and the tripod The reeds are connected to the positioning connection plate by bolts, and the three-pronged reeds can eliminate the axial force generated when the two shafts transmit torque, and not only play the role of axial connection but also have the performance of buffering and damping.

Further, three sets of slideways are provided on the positioning connection plate, and one end of the sliding rod is installed on the slideway of the positioning connection plate, and an arc-shaped groove is opened inside the positioning connection plate.

Further, the three-pronged reed is composed of spring claws and domes, and the three-pronged spring claws are uniformly distributed in the circumferential direction of 120°; the three-pronged reed restricts the axial displacement of the driving shaft and the driven shaft, Only angular displacement is allowed, enabling high-precision mechanical transmission and improving vibration damping.

Further, the tripod rod is composed of a left spherical surface, a right spherical surface and a fork rod, the left spherical surface is tangent to the dome of the trident reed, and the right spherical surface is tangent to the arc groove of the positioning connecting plate , there are three forks and they are located on the same plane and evenly distributed at 120°.

The present invention also relates to a working method of a centering tripod rod sliding type universal coupling, the specific steps are as follows: , and then transmit the torque to the positioning connection plate and the driven shaft through the sliding rod; the sliding rod can slide relatively along the slideway of the positioning connection plate, and the joint bearing can slide and rotate along the fork rod, so that the axes of the driving shaft and the driven shaft The included angle reaches a maximum of 40°.

Description of drawings

Figure 1: Exploded diagram of a centering tripod sliding type universal coupling of the utility model

Figure 2: A three-dimensional view of a centering tripod sliding type universal coupling of the utility model when there is an included angle

Figure 3: A cross-sectional view of a centering tripod sliding type universal coupling of the present invention when there is no included angle

Figure 4: A cross-sectional view of a centering tripod sliding type universal coupling of the present invention when there is an included angle

In the figure: 1-driving shaft, 2-connecting disc, 3-housing, 4-trident reed, 5-trident lever, 6-joint bearing, 7-sliding rod, 8-positioning connecting disc, 9-passive shaft, 10 -arc groove, 11-left spherical surface, 12-right spherical surface, 13-fork rod, 14-slide, 15-spring claw, 16-dome.

specific embodiment

Below in conjunction with accompanying drawing, the utility model is described further.

As shown in Figures 1, 2, 3, and 4, a centering tripod rod sliding type universal coupling includes: drive shaft 1, connecting disc 2, housing 3, sliding rod 7, joint bearing 6, trident Rod 5, trident reed 4, positioning connection plate 8, driven shaft 9; the drive shaft 1 is fixed to the connection plate 2, the connection plate 2 is fixedly connected to the housing 3, and the driven shaft 9 is connected to the The positioning connection plate 8 is fixed, the tripod rod 5 is fixed on the housing 3, the joint bearing 6 is connected with the slide bar 7, and one end of the slide bar 7 is installed on the slide of the positioning connection plate 8. On the road 14, the other end of the slide bar 7 is installed on the tripod rod 5 through the joint bearing 6, and the tripod reed 4 is connected with the positioning connection plate 8 by bolts; There are three sets of slideways 14, and the positioning connection plate 8 has an arc-shaped groove 10 inside; the three-fork reed 4 is composed of a spring claw 15 and a dome 16, and the spring claw 15 has three groups that are evenly distributed in a circumferential direction of 120°; Described tripod lever 5 is made up of left spherical surface 11, right spherical surface 12, fork rod 13, and described left spherical surface 11 is tangent to the dome 16 of described trident reed 4, and described right spherical surface 12 is connected with described positioning connecting plate 8 The arc grooves 10 are tangent to each other, and there are three fork bars 13 which are evenly distributed at 120° on the same plane.

The present invention also relates to a working method of a centering tripod lever sliding type universal coupling, the specific steps are as follows: the drive shaft 1 transmits torque to the tripod rod 5 through the connection plate 2 and the housing 3, and the tripod rod 5 The torque is transmitted to the joint bearing 6, and then the torque is transmitted to the positioning connection plate 8 through the sliding rod 7, thereby driving the driven shaft 9 to rotate; Sliding and turning, so that the angle between the axes of the driving shaft 1 and the driven shaft 9 reaches a maximum of 40°.

Claims (2)

1. A centering tripod rod sliding type universal coupling, characterized in that: comprising: drive shaft, connection disc, shell, slide bar, joint bearing, tripod rod, tripod reed, positioning connection disc, passive shaft; the driving shaft is fixed to the connecting plate, the connecting plate is fixedly connected to the housing, the driven shaft is fixed to the positioning connecting plate, the tripod is fixed on the housing, and the joint The bearing is connected with the slide bar, one end of the slide bar is installed on the slideway of the positioning connection plate, the other end of the slide bar is installed on the tripod bar through a joint bearing, and the tripod reed is connected with the tripod The positioning connecting plate is connected by bolts. 2. A centering tripod lever sliding type universal coupling as claimed in claim 1, characterized in that: the tripod reed is composed of a spring claw and a dome, and the spring claw has three components in the circumferential direction 120° uniform distribution; the three-prong reed restricts the axial displacement of the driving shaft and the driven shaft, and only allows angular displacement.