High-load cross shaft universal joint

Abstract

The utility model discloses a high-load cross shaft universal joint, and belongs to the technical field of cross shafts. The high-load cross shaft universal joint comprises a main body, the main body comprises a cross shaft, four bearing parts are arranged on the cross shaft, hollow annular plates are arranged outside the four bearing parts in a sleeving mode, a connecting sleeve is installed on one face of each hollow annular plate, four vertical grooves are formed in the outer wall of each connecting sleeve, and transverse grooves are formed in the positions, located on one sides of the four vertical grooves, of the outer wall of each connecting sleeve. Limiting holes are formed in the positions, close to the transverse grooves, of the outer wall of the connecting sleeve, the connecting sleeve is sleeved with a shaft sleeve assembly, the shaft sleeve assembly comprises a shaft sleeve body, four arc-shaped strips are installed at the bottom end of the shaft sleeve body, and an installation groove is formed between the opposite ends of a pair of adjacent arc-shaped strips. And mounting seats are mounted in the four mounting grooves, sliding seats are mounted on the faces, close to the connecting sleeves, of the mounting seats, sliding plates are slidably arranged in the sliding seats, through holes are formed in the centers of the sliding plates, and sleeves are mounted in the through holes.

Description

Technical Field

[0001] This utility model relates to the field of cross shaft technology, specifically a high-load cross shaft universal joint. Background Technology

[0002] A universal joint is a widely used component in mechanical transmissions, used to connect two shafts that are not on the same straight line, and to transmit torque and motion between the two shafts. In automotive transmission systems and other systems, universal joints are essential for transmitting power between shafts whose axes intersect or whose relative positions frequently change, and the universal joint is an indispensable component of such universal joints.

[0003] Based on the above, the inventors have discovered the following problems: Current universal joints are usually installed in a relatively compact space, and there may be other components around them that obstruct the installation of the bushing, making the installation operation space small and the installation tools difficult to use, thus increasing the difficulty and time of installation.

[0004] Therefore, in view of this, we have studied and improved the existing structure and its shortcomings to provide a high-load cross shaft universal joint, in order to achieve a more practical value. Utility Model Content

[0005] The purpose of this invention is to provide a high-load universal joint to solve the problems mentioned in the background art.

[0006] In view of the above problems, the technical solution proposed by this utility model is as follows:

[0007] A high-load universal joint for cross shafts includes a main body, which includes a cross shaft. Four bearing portions are provided on the cross shaft. Hollow ring plates are fitted around the exterior of each of the four bearing portions. A connecting sleeve is installed on one side of each hollow ring plate. Four vertical grooves are formed on the outer wall of the connecting sleeve, and a horizontal groove is formed on one side of each of the four vertical grooves. The vertical grooves and horizontal grooves are connected. A limiting hole is formed on the outer wall of the connecting sleeve near the horizontal groove. A bushing assembly is fitted around the outside of the connecting sleeve. The bushing assembly includes a bushing body. Four arc-shaped strips are installed at the bottom end of the bushing body. An installation groove is formed between the opposite ends of an adjacent pair of arc-shaped strips. An installation seat is installed inside each of the four installation grooves. A slide is installed on the side of the installation seat near the connecting sleeve. A sliding plate is slidably mounted inside the slide. A through hole is formed at the center of the sliding plate. A sleeve is installed inside the through hole, and one end of the sleeve extends through the slide and into the limiting hole.

[0008] Furthermore, the vertical groove and the horizontal groove are L-shaped, the outer wall of the slide block is in clearance fit with the inner wall of the vertical groove and the horizontal groove, and the inner wall of the limiting hole is in clearance fit with the outer wall of the sleeve at the end away from the mounting base.

[0009] The beneficial effect of adopting the above-mentioned further solution is that, since the vertical groove and the horizontal groove are L-shaped, the user holds and fixes the hollow ring plate by hand, and then aligns the slide at the adjacent arc-shaped strip mounting groove at the bottom end of the bushing body with the vertical groove and presses the bushing body downward, so that the bushing body is fitted on the outside of the connecting sleeve. Then, the bushing body is rotated. At the same time as the rotation, since the user holds and fixes the hollow ring plate by hand, the hollow ring plate and the connecting sleeve do not rotate with the rotation of the bushing body, so that the slide moves from the vertical groove to the inside of the horizontal groove under the action of rotation, and one side of the slide abuts against the inner side wall of the horizontal groove.

[0010] Furthermore, the outer wall of the slide plate is clearance-fitted with the inner wall of the slide block, and a screw is rotatably connected to one side of the inner wall of the mounting base. One end of the screw extends through the mounting base into the interior of the sleeve and is threadedly connected to the sleeve.

[0011] The beneficial effect of adopting the above-mentioned further solution is that, since the screw and the sleeve are threadedly connected, and the outer wall of the slide plate is clearance-fitted with the inner wall of the slide block, when the screw rotates, it is easy to realize the linear movement of the slide plate, so that the slide plate moves towards the connecting sleeve, and the end of the sleeve away from the mounting seat is inserted into the interior of the limiting hole, thereby realizing the installation and fixation of the connecting sleeve and the bushing body.

[0012] Furthermore, a worm gear is fitted on the outside of the screw at the end away from the sleeve, and a worm is rotatably connected inside the mounting base near the worm gear, with the worm and the worm gear meshing with each other.

[0013] The beneficial effect of adopting the above-mentioned further solution is that, through the cooperative use of the worm and the worm wheel, when the worm rotates, it is easy to drive the worm wheel to rotate, thereby realizing the rotation of the screw.

[0014] Furthermore, one end of the worm extends through the mounting base to the outside and is fitted with a rotating seat. The rotating seat has a locking groove on the side away from the worm, and a locking seat is installed inside the locking groove.

[0015] The beneficial effect of adopting the above-mentioned further solution is that, through the cooperative use of the rotating seat, the engaging groove, and the engaging seat, when the engaging seat is rotated, the worm gear can be rotated under the connecting action of the rotating seat.

[0016] Furthermore, the inner wall of the connecting sleeve is connected to the outer wall of the bearing portion by a needle roller bearing, the outer wall of the connecting sleeve is clearance-fitted with the inner wall of the bushing body, and the outer wall of the bushing body is provided with several splines.

[0017] The beneficial effect of adopting the above-mentioned further solution is that, since the inner wall of the connecting sleeve is connected to the outer wall of the bearing part through a needle roller bearing, and the bushing body is installed with the connecting sleeve, the bushing body can rotate. By setting a spline, when the universal joint fork and the bushing body are engaged, they rotate synchronously without relative rotation, thereby reducing wear.

[0018] Furthermore, each of the four bearing portions has a sealing groove on its outer wall, and a sealing ring is installed inside each sealing groove. The outer wall of the sealing ring is fixedly connected to the inner wall of the connecting sleeve.

[0019] The beneficial effect of adopting the above-mentioned further solution is that the sealing performance between the bearing part and the connecting sleeve is improved by the combined use of the sealing groove and the sealing ring. When the connecting sleeve rotates, the sealing ring can rotate inside the sealing groove.

[0020] Furthermore, the cross shaft, bearing section, connecting sleeve, and bushing body are all made of alloy steel.

[0021] The beneficial effect of adopting the above-mentioned further solution is that by making the cross shaft, bearing part, connecting sleeve and bushing body of alloy steel, the cross shaft universal joint can have higher strength, hardness and toughness, and can withstand greater loads.

[0022] Compared with the prior art, the beneficial effects of this utility model are as follows: Because the vertical and horizontal grooves of this high-load universal joint are L-shaped, the user holds and fixes the hollow ring plate by hand, then aligns the slide at the adjacent arc-shaped mounting groove at the bottom of the bushing body with the vertical groove and presses the bushing body downwards, so that the bushing body fits over the connecting sleeve. Then, the bushing body is rotated. Simultaneously, because the user holds and fixes the hollow ring plate by hand, the hollow ring plate and connecting sleeve do not rotate with the bushing body, allowing the slide to move from the vertical groove to the interior of the horizontal groove under the action of rotation. The slide block is positioned so that one side of the slide block abuts against the inner wall of the transverse groove. Since the screw and sleeve are threadedly connected, and the outer wall of the slide block is clearance-fitted with the inner wall of the slide block, the rotating locking seat facilitates the rotation of the worm gear under the connection of the rotating seat. When the worm gear rotates, it facilitates the rotation of the worm wheel, thereby facilitating the rotation of the screw. When the screw rotates, it facilitates the linear movement of the slide block, causing the slide block to move towards the connecting sleeve. This allows the end of the sleeve away from the mounting seat to be inserted into the limiting hole, thereby achieving the installation and fixation of the connecting sleeve and the bushing body, thus enabling the rapid installation of the bushing body. Attached Figure Description

[0023] Figure 1 A three-dimensional structural diagram of a high-load cross shaft universal joint provided by this utility model;

[0024] Figure 2An exploded three-dimensional structural diagram of the cross shaft of a high-load cross shaft universal joint provided by this utility model;

[0025] Figure 3 A three-dimensional unfolded structural diagram of the hollow ring plate and connecting sleeve of a high-load cross shaft universal joint provided by this utility model;

[0026] Figure 4 A three-dimensional unfolded structural diagram of the arc-shaped strip and mounting base of a high-load cross shaft universal joint provided by this utility model;

[0027] Figure 5 This is a three-dimensional structural diagram of the mounting base for a high-load cross shaft universal joint provided by this utility model.

[0028] In the diagram: 100, main body; 1001, cross shaft; 1002, bearing section; 1003, hollow ring plate; 1004, connecting sleeve; 1005, vertical groove; 1006, horizontal groove; 1007, limiting hole; 1008, sealing groove; 1009, sealing ring; 200, bushing assembly; 2001, bushing body; 2002, arc-shaped strip; 2003, slide block; 2004, sliding plate; 2005, sleeve; 2006, mounting groove; 2007, mounting base; 2008, screw; 2009, worm gear; 2010, worm; 2011, rotating seat; 2012, locking seat. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0030] Please see Figures 1-5This utility model provides a technical solution: a high-load universal joint with a cross shaft, comprising a main body 100, the main body 100 including a cross shaft 1001, four bearing portions 1002 provided on the cross shaft 1001, hollow ring plates 1003 fitted on the outside of each of the four bearing portions 1002, a connecting sleeve 1004 installed on one side of the hollow ring plate 1003, four vertical grooves 1005 formed on the outer wall of the connecting sleeve 1004, and a horizontal groove 1006 formed on one side of each of the four vertical grooves 1005 on the outer wall of the connecting sleeve 1004, adjacent vertical grooves 1005 and horizontal grooves 1006 communicating with each other, a limiting hole 1007 formed on the outer wall of the connecting sleeve 1004 near the horizontal groove 1006, and a bushing assembly 200 fitted on the outside of the connecting sleeve 1004, the bushing assembly 200 including a bushing body 20 01. Four arc-shaped strips 2002 are installed at the bottom of the bushing body 2001. An installation groove 2006 is formed between the opposite ends of an adjacent pair of arc-shaped strips 2002. An installation seat 2007 is installed inside each of the four installation grooves 2006. A slide 2003 is installed on the side of the installation seat 2007 near the connecting sleeve 1004. A sliding plate 2004 is slidably provided inside the slide 2003. A through hole is opened at the center of the sliding plate 2004. A sleeve 2005 is installed inside the through hole. One end of the sleeve 2005 extends through the slide 2003 into the interior of the limiting hole 1007. Since one end of the sleeve 2005 extends through the slide 2003 into the interior of the limiting hole 1007, the slide 2003 is limited inside the transverse groove 1006, thereby realizing the quick installation of the bushing body 2001.

[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0032] Please see Figures 1-5This utility model provides a technical solution: the adjacent vertical groove 1005 and horizontal groove 1006 are L-shaped; the outer wall of the slide block 2003 is clearance-fitted with the inner walls of the vertical groove 1005 and the horizontal groove 1006; the inner wall of the limiting hole 1007 is clearance-fitted with the outer wall of the sleeve 2005 away from the mounting base 2007; the outer wall of the sliding plate 2004 is clearance-fitted with the inner wall of the slide block 2003; a screw 2008 is rotatably connected to one side of the inner wall of the mounting base 2007; one end of the screw 2008 extends through the mounting base 2007 into the interior of the sleeve 2005. The screw 2008 is threadedly connected to the sleeve 2005. A worm gear 2009 is fitted onto the outer side of the screw 2008 at the end furthest from the sleeve 2005. A worm 2010 is rotatably connected inside the mounting base 2007 near the worm gear 2009. The worm 2010 meshes with the worm gear 2009. One end of the worm 2010 extends through the mounting base 2007 to the outside and is fitted with a rotating seat 2011. A locking groove is formed inside the rotating seat 2011 on the side furthest from the worm 2010. A locking seat 2012 is installed inside the locking groove. (The last sentence appears to be incomplete and possibly refers to a vertical groove 10.) The space between 05 and the horizontal groove 1006 forms an L-shape. The user holds and fixes the hollow ring plate 1003 by hand, and then aligns the slide 2003 at the mounting groove 2006 of the adjacent arc-shaped strip 2002 at the bottom end of the bushing body 2001 with the vertical groove 1005 and presses the bushing body 2001 downward, so that the bushing body 2001 is fitted over the connecting sleeve 1004. Then the bushing body 2001 is rotated. While rotating, because the user holds and fixes the hollow ring plate 1003 by hand, the hollow ring plate 1003 and the connecting sleeve 1004 do not rotate with the bushing body 2001. The rotation causes the slide 2004 to move from the vertical groove 1005 to the inside of the horizontal groove 1006, and one side of the slide 2003 abuts against the inner wall of the horizontal groove 1006. The rotation of the locking seat 2012 facilitates the rotation of the worm 2010 under the connection of the rotating seat 2011. When the worm 2010 rotates, it drives the worm wheel 2009 to rotate, thereby realizing the rotation of the screw 2008. When the screw 2008 rotates, it facilitates the linear movement of the slide plate 2004, causing the slide plate 2004 to move towards the connecting sleeve 1004.

[0033] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0034] Please see Figures 1-5This utility model provides a technical solution: the inner wall of the connecting sleeve 1004 is connected to the outer wall of the bearing part 1002 via a needle roller bearing; the outer wall of the connecting sleeve 1004 is clearance-fitted with the inner wall of the bushing body 2001; the outer wall of the bushing body 2001 is provided with several splines; the outer walls of the four bearing parts 1002 are each provided with a sealing groove 1008; a sealing ring 1009 is installed inside each sealing groove 1008; the outer wall of the sealing ring 1009 is fixedly connected to the inner wall of the connecting sleeve 1004; the cross shaft 1001, bearing part 1002, connecting sleeve 1004, and bushing body 2001 are all made of alloy steel; since the inner wall of the connecting sleeve 1004 is connected to the outer wall of the bearing part 1002 via a needle roller bearing, and the bushing body 2001... The universal joint 1001 is installed with the connecting sleeve 1004, allowing the bushing body 2001 to rotate. By setting a spline, when the universal joint fork and the bushing body 2001 are engaged, they rotate synchronously without relative rotation, thereby reducing wear. The sealing performance between the bearing part 1002 and the connecting sleeve 1004 is improved by the cooperation of the sealing groove 1008 and the sealing ring 1009. When the connecting sleeve 1004 rotates, the sealing ring 1009 can rotate inside the sealing groove 1008. By making the universal joint 1001, bearing part 1002, connecting sleeve 1004 and bushing body 2001 into alloy steel, the universal joint 1001 has higher strength, hardness and toughness, enabling it to withstand greater loads.

[0035] Specifically, the working principle of this high-load cross-shaft universal joint is as follows: During use, the user holds and fixes the hollow ring plate 1003 by hand. Then, the user aligns the slide 2003 at the mounting groove 2006 of the adjacent arc-shaped strip 2002 at the bottom end of the bushing body 2001 with the vertical groove 1005 and presses the bushing body 2001 downwards, causing the bushing body 2001 to fit over the connecting sleeve 1004. Then, the user rotates the bushing body 2001. Simultaneously, because the user holds and fixes the hollow ring plate 1003 by hand, the hollow ring plate 1003 and the connecting sleeve 1004 do not rotate with the bushing body 2001. This causes the slide 2004 to move from the vertical groove 1005 to the interior of the horizontal groove 1006 under the rotation, and the slide 2004... One side of 004 ​​abuts against the inner wall of the transverse groove 1006. Since the screw 2008 is threadedly connected to the sleeve 2005, and the outer wall of the slide plate 2004 is clearance-fitted with the inner wall of the slide block 2003, rotating the locking seat 2012 facilitates the rotation of the worm 2010 under the connection of the rotating seat 2011. When the worm 2010 rotates, it facilitates the rotation of the worm wheel 2009, thereby realizing the rotation of the screw 2008. This causes the slide plate 2004 to move towards the connecting sleeve 1004, allowing the end of the sleeve 2005 away from the mounting seat 2007 to be inserted into the interior of the limiting hole 1007. This achieves the installation and fixation of the connecting sleeve 1004 and the bushing body 2001, thus enabling the rapid installation of the bushing body 2001.

Claims

1. A high-load universal joint, characterized in that, The system includes a main body (100), which includes a cross shaft (1001). Four bearing portions (1002) are provided on the cross shaft (1001). Hollow ring plates (1003) are fitted around each of the four bearing portions (1002). A connecting sleeve (1004) is installed on one side of each hollow ring plate (1003). Four vertical grooves (1005) are formed on the outer wall of the connecting sleeve (1004), and horizontal grooves (1006) are formed on one side of each of the four vertical grooves (1005). The vertical grooves (1005) and horizontal grooves (1006) are connected. A limiting hole (1007) is formed on the outer wall of the connecting sleeve (1004) near the horizontal groove (1006). A shaft is fitted around the outside of the connecting sleeve (1004). The bushing assembly (200) includes a bushing body (2001), with four arc-shaped strips (2002) installed at the bottom end of the bushing body (2001). An installation groove (2006) is formed between the opposite ends of an adjacent pair of arc-shaped strips (2002). An installation seat (2007) is installed inside each of the four installation grooves (2006). A slide seat (2003) is installed on the side of the installation seat (2007) near the connecting sleeve (1004). A sliding plate (2004) is slidably provided inside the slide seat (2003). A through hole is opened at the center of the sliding plate (2004). A sleeve (2005) is installed inside the through hole. One end of the sleeve (2005) extends through the slide seat (2003) into the interior of the limiting hole (1007).

2. The high-load universal joint according to claim 1, characterized in that, The vertical groove (1005) and the horizontal groove (1006) are in an "L" shape. The outer wall of the slide (2003) is in clearance fit with the inner wall of the vertical groove (1005) and the horizontal groove (1006). The inner wall of the limiting hole (1007) is in clearance fit with the outer wall of the end of the sleeve (2005) away from the mounting base (2007).

3. A high-load universal joint according to claim 2, characterized in that, The outer wall of the slide plate (2004) is clearance-fitted with the inner wall of the slide block (2003). A screw (2008) is rotatably connected to one side of the inner wall of the mounting base (2007). One end of the screw (2008) passes through the mounting base (2007) and extends into the inside of the sleeve (2005), and is threadedly connected to the sleeve (2005).

4. A high-load universal joint according to claim 3, characterized in that, The screw (2008) has a worm gear (2009) sleeved on the outside of the end away from the sleeve (2005). The mounting base (2007) has a worm (2010) rotatably connected inside near the worm gear (2009). The worm (2010) and the worm gear (2009) mesh with each other.

5. A high-load universal joint according to claim 4, characterized in that, One end of the worm (2010) extends through the mounting base (2007) to the outside and is fitted with a rotating base (2011). The rotating base (2011) has a locking groove on the side away from the worm (2010), and a locking seat (2012) is installed inside the locking groove.

6. A high-load universal joint according to claim 1, characterized in that, The inner wall of the connecting sleeve (1004) is connected to the outer wall of the bearing part (1002) by a needle roller bearing. The outer wall of the connecting sleeve (1004) is clearance-fitted with the inner wall of the bushing body (2001). The outer wall of the bushing body (2001) is provided with several splines.

7. A high-load universal joint according to claim 6, characterized in that, Each of the four bearing portions (1002) has a sealing groove (1008) on its outer wall. A sealing ring (1009) is installed inside each of the sealing grooves (1008). The outer wall of the sealing ring (1009) is fixedly connected to the inner wall of the connecting sleeve (1004).

8. A high-load universal joint according to claim 7, characterized in that, The cross shaft (1001), bearing part (1002), connecting sleeve (1004) and bushing body (2001) are all made of alloy steel.

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