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CN-224214600-U - Double-joint universal joint

CN224214600UCN 224214600 UCN224214600 UCN 224214600UCN-224214600-U

Abstract

The utility model discloses a double-connection universal joint, and belongs to the technical field of universal joints. The universal joint comprises a universal joint body and a pair of connecting pieces, wherein the universal joint body comprises a fixed joint and a pair of connecting joints, first grooves are formed in two ends of the fixed joint, the pair of connecting joints are located at two ends of the fixed joint, second grooves are formed in end faces, close to the fixed joint, of the pair of connecting joints, rotating shafts are arranged on one pair of opposite sides of four sides of the joint, connecting shafts and sliding shafts are respectively arranged on the other pair of opposite sides of the four sides of the joint, one side of the joint is provided with a sliding hole and a first sliding groove which are communicated with each other, the sliding shafts slide in the sliding hole and the first sliding groove, the sliding shafts are elastically connected with the first sliding grooves, the pair of rotating shafts are rotatably arranged on two sides of the first grooves, and the connecting shafts and the sliding shafts are rotatably arranged on two sides of the second grooves.

Inventors

  • HE ZENG

Assignees

  • 浙江立群汽车配件制造有限公司

Dates

Publication Date
20260508
Application Date
20250714

Claims (7)

  1. 1. A double-joint universal joint, comprising: The universal joint comprises a universal joint body (100), wherein the universal joint body (100) comprises a fixed joint (1001) and a pair of connecting joints (1002), both ends of the fixed joint (1001) are provided with first grooves (1004), the pair of connecting joints (1002) are positioned at both ends of the fixed joint (1001), the pair of connecting joints (1002) are provided with second grooves (1005) at the end faces close to the fixed joint (1001), and the pair of connecting joints (1002) are provided with fixing rods (1003) at the end faces far away from the fixed joint (1001); The pair of connecting pieces (200), a pair of connecting pieces (200) include joint (2001), pivot (2003) are all installed on one pair of opposite sides in joint (2001) four sides, connecting axle (2002), sliding shaft (2006) are installed respectively on another pair of opposite sides in joint (2001) four sides, be linked together slide hole and first spout (2004) have been seted up to one side of joint (2001), sliding shaft (2006) are in slide hole and first spout (2004), just sliding shaft (2006) and first spout (2004) elastic connection, a pair of pivot (2003) rotate and install the both sides of first recess (1004), connecting axle (2002), sliding shaft (2006) rotate and install the both sides of second recess (1005).
  2. 2. The double-joint universal joint according to claim 1, wherein a limiting rod (2008) is mounted in the first sliding groove (2004), a limiting groove (2009) is formed in the end face of the sliding shaft (2006), and the limiting rod (2008) slides in the limiting groove (2009).
  3. 3. The double-joint universal joint according to claim 2, wherein a sliding block (2010) is mounted on a side surface of the limiting rod (2008), a second sliding groove (2011) and a clamping groove (2012) are formed in the limiting groove (2009), the second sliding groove (2011) and the clamping groove (2012) are communicated, an L-shaped row is formed, and the sliding block (2010) slides in the second sliding groove (2011) and the clamping groove (2012).
  4. 4. The double-joint universal joint according to claim 1, wherein a spring (2013) is rotatably connected between the sliding shaft (2006) and the first runner (2004).
  5. 5. The double-joint universal joint according to claim 1, wherein a limiting ring (2005) is mounted on an end surface of the sliding shaft (2006) located on the first sliding groove (2004), and the limiting ring (2005) abuts against the first sliding groove (2004).
  6. 6. The double-joint universal joint according to claim 1, wherein a pair of through holes (1006) communicated with the second groove (1005) are formed on the outer side of the connecting joint (1002), the connecting shaft (2002) and the sliding shaft (2006) are rotatably installed in the through holes (1006), and sealing plugs (1007) are clamped in the through holes (1006).
  7. 7. The double-joint universal joint according to claim 1, wherein a hexagonal groove (2007) is formed in an end surface of the sliding shaft (2006) located outside the first sliding groove (2004).

Description

Double-joint universal joint Technical Field The utility model relates to the technical field of universal joints, in particular to a double-joint universal joint. Background In the field of modern mechanical transmission, a cross-shaft universal joint is taken as a key component and is widely applied to various mechanical equipment, such as automobiles, ships, industrial machinery and the like, and is used for realizing power transmission among different shafts. The double-universal joint constant-speed transmission device can ensure reliable torque transmission and normal operation of mechanical equipment under the condition that the included angle of two shafts is continuously changed, and the double-universal joint constant-speed transmission device with the minimum transmission shaft length is actually a double-universal joint constant-speed transmission device with the minimum transmission shaft length. Based on the above, the inventor finds that the conventional method for installing the cross-shaft universal joint is relatively simple and rough, and usually needs to be crashed into an installation position by means of tools such as a hammer, and the installation mode is convenient to operate, but has great defects in practice, in the process of knocking and installing by using the hammer, the condition of strong force is easy to occur because knocking force is difficult to accurately control, and the excessive impact force can directly act on each part of the cross-shaft universal joint, such as a cross shaft and a needle bearing, so that the journal part of the cross shaft can deform to influence the matching precision of the cross-shaft universal joint and the bearing, and further the rotation flexibility and stability of the cross-shaft universal joint are reduced. Disclosure of utility model The present utility model is directed to a dual-joint universal joint, which solves the above-mentioned problems. In view of the above problems, the technical scheme provided by the utility model is as follows: a double-joint universal joint comprises a universal joint main body and a pair of connecting pieces. Further, the universal joint main body comprises a fixed joint and a pair of connecting joints, wherein the two ends of the fixed joint are respectively provided with a first groove, the connecting joints are positioned at the two ends of the fixed joint, the connecting joints are respectively provided with a second groove close to the end faces of the fixed joint, the connecting joints are respectively provided with a fixed rod at the end faces far away from the fixed joint, the connecting parts comprise joints, rotating shafts are respectively arranged at one of four sides of the joints, connecting shafts and sliding shafts are respectively arranged at the other of the four sides of the joints, one side of each joint is provided with a sliding hole and a first sliding groove which are communicated with each other, the sliding shafts slide in the sliding holes and the first sliding grooves, the sliding shafts and the first sliding grooves are elastically connected, the rotating shafts are rotatably arranged at two sides of the first grooves, the connecting shafts and the sliding shafts are rotatably arranged at two sides of the second grooves, when the universal joint is arranged, a hammer is not required to be used, and an installer can drive the sliding shafts to be arranged in the first grooves and the sliding shafts through operation, and the two sides of the first sliding shafts and the first sliding shafts are prevented from being aligned with the first sliding grooves, so that the installation of the universal joint is greatly damaged due to the fact that the installation difficulty of the hammer is reduced. Further, the internally mounted of first spout has the gag lever post, the spacing groove has been seted up to the terminal surface of sliding shaft, the gag lever post is in the spacing inslot slides, can restrict the sliding range of sliding shaft in first spout. Further, the side mounting of gag lever post has the slider, second spout and draw-in groove have been seted up in the spacing inslot, second spout and draw-in groove intercommunication, and constitute "L" row, the slider is in slide in second spout, the draw-in groove, when dismantling, presses the sliding shaft, when the sliding shaft slides to the end, rotatory sliding shaft, the slider can follow second spout and slide into the draw-in groove, realizes the location of sliding shaft to make the sliding shaft fix in the second spout, so that the user dismantles. Further, a spring is rotatably connected between the sliding shaft and the first sliding groove, and the elastic force provided by the spring can enable the sliding shaft to extend out of the second sliding groove. Further, the sliding shaft is located the terminal surface of first spout is installed the spacing ring, the spacing ring with first spout offsets, and the