Universal shaft convenient to disassemble and assemble

Abstract

The utility model discloses a universal shaft convenient to disassemble and assemble, which relates to the technical field of universal shafts and comprises a first universal joint fork, a second universal joint fork and a universal shaft fixing device. A cross shaft is mounted in the first universal joint fork and the second universal joint fork, and two mounting frames are fixedly connected to the surface of each of the first universal joint fork and the second universal joint fork; the universal shaft fixing device comprises a fixing block, a second clamping block, a mounting sliding block, a pull rod, a ball, a pressing ring and a sleeve spring, the fixing block is mounted on the surface of the universal joint pin, the second clamping block is fixedly connected to the surface of the fixing block, the second clamping block is slidably clamped into the limiting clamping groove, and the mounting sliding block is slidably connected into the mounting frame. The pull rod is slidably sleeved with the installation sliding block, a worker can install the universal joint pin without screws, the installation mode of the universal joint pin is simplified, the disassembly and assembly time of the universal joint pin is shortened, and the disassembly and assembly efficiency of the universal joint pin is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of universal shaft, especially a universal shaft convenient to disassemble and assemble. BACKGROUND

[0002] The cross universal shaft is connected with two intersecting shafts or two parallel and staggered shafts, allows a large inter-shaft angle between the two shafts, and is an important transmission base piece for transmitting power and torque. As a transmission base piece for transmitting power and torque, the cross universal shaft is widely used in transmission shaft parts of rolling steel machinery, papermaking machinery, hoisting equipment, oil drilling machines, vehicles, woodworking and centrifugal pumps.

[0003] The prior art CN219888549U discloses a cross universal shaft assembly convenient to disassemble and assemble. The cross shaft is inserted into the installation groove, then the installation mechanism is engaged with the universal joint fork, and then the installation mechanism and the universal joint fork are fixed to fix the cross shaft. This can make the fixing more rapid, solve the problem that the existing cross universal shaft needs to be disassembled by using a special tool, which is very troublesome and can easily damage the cross shaft during disassembly, and the cross shaft needs to be replaced, which is very inconvenient during use. The cross universal shaft assembly has the advantage of convenient disassembly.

[0004] Based on the above search, the following problems exist in the use of the cross universal shaft assembly: the cross shaft is inserted into the installation groove, then the installation mechanism is engaged with the universal joint fork, and then the installation mechanism and the universal joint fork are fixed to fix the cross shaft. During the fixing of the installation mechanism, the worker needs to use multiple screws to install it, and the worker needs to use a special tool to install it. The installation method of the installation mechanism is relatively complicated, which increases the disassembly and assembly time of the universal shaft and reduces the efficiency of disassembly and assembly of the universal shaft. CONTENT OF THE UTILITY MODEL

[0005] The utility model aims at least to solve one of the technical problems in the prior art, and provides a universal shaft convenient to disassemble and assemble, which can solve the problem that the worker needs to use multiple screws to install the installation mechanism during the fixing, and the worker needs to use a special tool to install it. The installation method of the installation mechanism is relatively complicated, which increases the disassembly and assembly time of the universal shaft and reduces the efficiency of disassembly and assembly of the universal shaft.

[0006] To achieve the above object, the utility model provides the following technical scheme: A universal shaft convenient to dismount, including first universal joint fork, second universal joint fork and universal shaft fixing device, the inside installation of first universal joint fork and second universal joint fork has cross shaft, the surface of first universal joint fork and second universal joint fork is all fixedly connected with two mounting bracket, universal shaft fixing device includes fixed block, second clamping block, installation sliding block, pull rod, ball, pressure ring and cover spring, the surface of fixed block is installed in cross shaft, second clamping block is fixedly connected on the surface of fixed block, second clamping block is slidably connected in the inside of limiting slot, installation sliding block is slidably connected in the inside of mounting bracket, pull rod is slidably connected in the inside of installation sliding block, ball is fixedly connected in one end of pull rod, the surface of mounting bracket is provided with two fixed clamping hole, the end of pull rod away from ball is slidably connected in the inside of fixed clamping hole, the surface of fixed block is provided with installation sliding slot.

[0007] Preferably, the surface of the cross shaft is provided with four limiting slots.

[0008] Preferably, the surface of the four mounting brackets is fixedly connected with a first clamping block, and the four first clamping blocks are slidably connected in the four limiting slots respectively.

[0009] Preferably, the surface of the installation sliding block is slidably connected with the inside of the installation sliding slot.

[0010] Preferably, the pressure ring is fixedly connected with the surface of the pull rod, and the pressure ring is slidably connected in the inside of the installation sliding block.

[0011] Preferably, the cover spring is slidably connected with the surface of the pull rod, the cover spring is fixedly connected with the surface of the pressure ring, the end of the cover spring away from the pressure ring is fixedly connected with the inner wall of the installation sliding block, and the four mounting brackets are provided with the same structure.

[0012] Compared with the prior art, the utility model has the beneficial effects that:

[0013] 1. The universal shaft convenient to dismount, the fixed block and the mounting bracket can be fixed and installed together through the installation sliding block, the cross shaft can be fixed and installed in the inside, the cross shaft can be installed without screw, and the cross shaft can be installed without specific tool, so that the installation mode of the cross shaft is simplified, the dismounting time of the cross shaft is reduced, and the efficiency of dismounting and installing the cross shaft is improved. BRIEF DESCRIPTION OF DRAWINGS

[0014] The utility model is further illustrated by combining with the drawings and examples:

[0015] Figure 1 It is the whole structure schematic view of the utility model of a kind of universal shaft convenient to dismount;

[0016] Figure 2The utility model discloses a bottom structure schematic diagram of universal shaft convenient to dismount.

[0017] Figure 3 The utility model discloses the internal structure schematic diagram of mounting frame.

[0018] Figure 4 The utility model discloses the section structure schematic diagram of mounting sliding block.

[0019] Figure 5 The utility model discloses the surface structure schematic diagram of fixed block.

[0020] Reference signs: 1, first universal joint fork;2, second universal joint fork;3, cross shaft;4, mounting frame;5, first clamping block;6, limit clamping groove;7, fixed block;8, second clamping block;9, mounting sliding slot;10, mounting sliding block;11, pull rod;12, round ball;13, fixed clamping hole;14, press ring;15, cover spring. Specific implementation

[0021] This part will describe the specific embodiment of the utility model in detail, and the preferred embodiment of the utility model is shown in the drawings, and the function of the drawings is to supplement the description of the text part with graphics, so that people can intuitively and visually understand each technical feature and the overall technical scheme of the utility model, but it cannot be understood as the limitation of the protection scope of the utility model.

[0022] In the description of the utility model, it is understood that the orientation description, such as the orientation or position relationship indicated by up, down, front, back, left, right and the like, is based on the orientation or position relationship shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as the limitation of the utility model.

[0023] In the description of the utility model, greater than, less than, more than and the like are understood as not including the number, and above, below, within and the like are understood as including the number. If it is described as first, second, it is only for the purpose of distinguishing technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features or implicitly indicating the sequence of indicated technical features.

[0024] In the description of the utility model, unless otherwise explicitly limited, the words such as setting, mounting and connecting should be understood in a broad sense, and the person skilled in the art can reasonably determine the specific meaning of the above words in the utility model according to the specific content of the technical scheme.

[0025] Please refer to Figures 1-5The utility model provides a technical scheme: a universal shaft convenient to dismount, including first universal joint fork 1, second universal joint fork 2 and universal shaft fixing device, the inside installation of first universal joint fork 1 and second universal joint fork 2 has cross shaft 3, the surface of first universal joint fork 1 and second universal joint fork 2 is all fixedly connected with two mounting bracket 4, the surface of four mounting bracket 4 is all fixedly connected with first clamping block 5, the surface of cross shaft 3 is equipped with four limit card slot 6, four first clamping block 5 are respectively slidingly connected in the inside of four limit card slot 6.

[0026] The convenient universal shaft of dismounting when installing, staff first put cross shaft 3 into the inside of two mounting bracket 4, and make two first clamping block 5 of two mounting bracket 4 surface slidingly connect in the inside of two limit card slot 6, at this time, through the clamping effect between two limit card slot 6 and two first clamping block 5 can prevent cross shaft 3 from moving back and forth in the inside of two mounting bracket 4, and cross shaft 3 can rotate in the inside of two mounting bracket 4, and then make two first clamping block 5 rotate in the inside of two limit card slot 6, through this kind of mode, under the condition of guaranteeing the stability of cross shaft 3, will not affect the rotation of cross shaft 3.

[0027] Universal shaft fixing device includes fixed block 7, second clamping block 8, installation sliding block 10, pull rod 11, round ball 12, compression ring 14 and cover spring 15, fixed block 7 is installed on the surface of cross shaft 3, second clamping block 8 is fixedly connected on the surface of fixed block 7, second clamping block 8 is slidingly connected in the inside of limit card slot 6, installation sliding block 10 is slidingly connected in the inside of mounting bracket 4, pull rod 11 is slidingly connected in the inside of installation sliding block 10, round ball 12 is fixedly connected in one end of pull rod 11, the surface of mounting bracket 4 is equipped with two fixed card hole 13, the end of pull rod 11 away from round ball 12 is slidingly connected in the inside of fixed card hole 13, the surface of fixed block 7 is equipped with installation sliding slot 9, the surface of installation sliding block 10 is slidingly connected with the inside of installation sliding slot 9, compression ring 14 is fixedly connected on the surface of pull rod 11, compression ring 14 is slidingly connected in the inside of installation sliding block 10, cover spring 15 is slidingly connected on the surface of pull rod 11, cover spring 15 is fixedly connected on the surface of compression ring 14, the end of cover spring 15 away from compression ring 14 is fixedly connected on the inner wall of installation sliding block 10, the inside of four mounting bracket 4 is provided with same structure.

[0028] When the cross shaft 3 is installed, the worker slides the fixing block 7 on the surface of the cross shaft 3, and makes the second clamping block 8 slide into the limiting clamping slot 6. Finally, the worker pulls the pull rod 11 to the rear side through the ball 12. The pull rod 11 moves to the rear side, which drives the compression ring 14 to move to the rear side and extrudes the sleeve spring 15. At this time, the sleeve spring 15 provides a reverse elastic force to the compression ring 14. The pull rod 11 moves to the rear side and is separated from the inside of the lower fixed clamping hole 13, thereby releasing the fixing effect on the installation sliding block 10. The worker can slide the installation sliding block 10 through the pull rod 11 and make it move out of the inside of the installation frame 4. The installation sliding block 10 slides into the inside of the installation sliding slot 9. After the worker loosens the pull rod 11, the sleeve spring 15 releases the elastic force and pushes the compression ring 14 and the pull rod 11 to slide reversely. The pull rod 11 reversely slides and is clamped into the inside of the upper fixed clamping hole 13 to fix the installation sliding block 10 again. At this time, the fixing block 7 and the installation frame 4 are fixed and installed together through the installation sliding block 10, and the cross shaft 3 is fixed and installed on the inside. This installation method does not require the worker to install the cross shaft 3 through screws, and the worker does not need to use special tools to install the cross shaft 3. The installation method of the cross shaft 3 is simplified, the disassembly and assembly time of the cross shaft 3 is reduced, and the efficiency of disassembly and installation of the cross shaft 3 is improved.

[0029] Working principle: The worker first puts the cross shaft 3 into the inside of the two installation frames 4, and makes the two first clamping blocks 5 on the surface of the two installation frames 4 slide into the inside of the two limiting clamping slots 6 to prevent the cross shaft 3 from moving forward and backward in the inside of the two installation frames 4. The worker slides the fixing block 7 on the surface of the cross shaft 3, and makes the second clamping block 8 slide into the inside of the limiting clamping slot 6. Finally, the worker pulls the pull rod 11 to the rear side through the ball 12. The pull rod 11 moves to the rear side, which drives the compression ring 14 to move to the rear side and extrudes the sleeve spring 15. The pull rod 11 moves to the rear side and is separated from the inside of the lower fixed clamping hole 13, thereby releasing the fixing effect on the installation sliding block 10. The worker can slide the installation sliding block 10 through the pull rod 11 and make it move out of the inside of the installation frame 4. The installation sliding block 10 slides into the inside of the installation sliding slot 9. After the worker loosens the pull rod 11, the sleeve spring 15 releases the elastic force and pushes the compression ring 14 and the pull rod 11 to slide reversely. The pull rod 11 reversely slides and is clamped into the inside of the upper fixed clamping hole 13 to fix the installation sliding block 10 again. At this time, the fixing block 7 and the installation frame 4 are fixed and installed together through the installation sliding block 10, and the cross shaft 3 is fixed and installed on the inside. This installation method does not require the worker to install the cross shaft 3 through screws, and the worker does not need to use special tools to install the cross shaft 3. The installation method of the cross shaft 3 is simplified, the disassembly and assembly time of the cross shaft 3 is reduced, and the efficiency of disassembly and installation of the cross shaft 3 is improved.

[0030] The utility model embodiment makes the detailed explanation in combination with the drawing, but the utility model is not limited to the above -mentioned embodiment, still can make various changes in the knowledge range of ordinary skill in the art person who has possessed under the premise of not departing from the utility model tenet.

Claims

1. A universal shaft which is easy to assemble and disassemble, characterized in that, The utility model relates to a kind of universal joint, which includes: First universal joint fork (1), second universal joint fork (2) and universal shaft fixing device; Cross shaft (3) is installed in the inside of first universal joint fork (1) and second universal joint fork (2), and the surface of first universal joint fork (1) and second universal joint fork (2) is fixedly connected with two mounting racks (4); Universal shaft fixing device includes fixed block (7), second clamping block (8), installation sliding block (10), pull rod (11), round ball (12), compression ring (14) and sleeve spring (15), fixed block (7) is installed on the surface of cross shaft (3), second clamping block (8) is fixedly connected on the surface of fixed block (7), second clamping block (8) is slidably connected in the inside of limiting clamping groove (6), installation sliding block (10) is slidably connected in the inside of mounting rack (4), pull rod (11) is slidably connected in the inside of installation sliding block (10), round ball (12) is fixedly connected on one end of pull rod (11), two fixed clamping holes (13) are formed on the surface of mounting rack (4), the end of pull rod (11) away from round ball (12) is slidably connected in the inside of fixed clamping hole (13), and installation sliding groove (9) is formed on the surface of fixed block (7).

2. The easy-to-assemble and disassemble universal shaft according to claim 1, characterized in that: The surface of the cross shaft (3) is provided with four limiting clamping grooves (6).

3. A quick release universal shaft as claimed in claim 2, wherein: The surface of the four mounting racks (4) is fixedly connected with first clamping blocks (5), and the four first clamping blocks (5) are slidably connected in the four limiting clamping grooves (6) respectively.

4. The easy-to-assemble and disassemble universal shaft according to claim 1, characterized in that: The surface of the installation sliding block (10) is slidably connected with the inside of the installation sliding groove (9).

5. The easy-to-assemble and disassemble universal shaft according to claim 1, characterized in that: The compression ring (14) is fixedly connected on the surface of the pull rod (11), and the compression ring (14) is slidably connected in the inside of the installation sliding block (10).

6. A quick release universal shaft as claimed in claim 5, wherein: The sleeve spring (15) is slidably connected on the surface of the pull rod (11), and the sleeve spring (15) is fixedly connected on the surface of the compression ring (14), the end of the sleeve spring (15) away from the compression ring (14) is fixedly connected on the inner wall of the installation sliding block (10), and the four mounting racks (4) are provided with the same structure.

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