Positioning and clamping device for heavy cross-shaped universal shaft

Abstract

The positioning and clamping device comprises a first connecting seat, a first rotating arm is connected to the inner side of the top end of the first connecting seat, a rotating seat is arranged on the side wall of the bottom of the first rotating arm, a linear groove is formed in the inner side of the rotating seat, and a second rotating arm is arranged in the linear groove. A through hole is formed in the side wall of the first connecting seat; through the combined use of a positioning rod, a first spring and a linear clamping plate, subsequent positioning treatment of the rotating arm can be conveniently achieved according to actual use requirements, then positioning of the rotating arm does not need to be achieved through a foreign object any more, more convenience and rapidness are achieved, the practicability is higher, and the practicability is higher. When the positioning rod transversely moves under the action of the first spring, then the positioning rod is twisted to drive the linear clamping plate to rotate, and then when the linear clamping plate rotates to the angle matched with the linear groove, clamping connection of the linear clamping plate and the linear groove can be achieved, then positioning treatment of the rotating arm can be achieved, and convenience and rapidness are achieved.

Description

Technical Field

[0001] The utility model relates to the field of a positioning and clamping device for a heavy-duty cross universal shaft, in particular to a positioning and clamping device for a heavy-duty cross universal shaft. Background Art

[0002] In recent years, due to the rapid development of production technology, the requirements for the torque transmission capacity of the cross universal joint are constantly increasing. Due to the limitation of space installation size, the specifications of the cross universal joint are limited. While meeting the installation requirements of the cross universal joint, the positioning and clamping methods of its core parts, the cross shaft, must be improved as much as possible. In the process of transmitting torque, the bottom of the bearing shell is stressed and worn, which can easily cause the bearing shell to be pierced and the bearing rollers to scatter, resulting in accidents such as sudden shutdown of the transmission mechanical system;

[0003] For example, the utility model with authorization announcement number CN212297326U discloses a positioning and clamping device for a heavy-duty cross universal joint. Unlike an ordinary cross universal joint, a rotating arm is designed at the fork portion of the transmission shaft, which makes it easier to adjust and install large equipment, thus saving a lot of time and improving work efficiency. However, when the current cross universal joint is in use, it is difficult to position the universal joint itself, and external force is needed to position the universal joint, which is not only less practical, but also more troublesome and impractical. Utility Model Content

[0004] In order to overcome the deficiencies in the prior art, the utility model provides a positioning and clamping device for a heavy-duty cross universal shaft, which can solve the problem that the existing heavy-duty cross universal shaft is different from an ordinary cross universal shaft. A rotating arm is designed at the transmission shaft fork position, which can be more convenient to adjust and install during the installation of large equipment, saving a lot of time and improving work efficiency. However, when the current cross universal shaft is in use, it is difficult to achieve the positioning processing of the universal shaft itself, and thus external force is needed to achieve the positioning of the universal shaft, which is not only not practical, but also relatively more troublesome and not practical. Technical problems.

[0005] To solve the above technical problems, the utility model provides the following technical solutions: a positioning and clamping device for a heavy-duty cross universal joint, comprising a first connecting seat, a first rotating arm is connected to the inner side of the top end of the first connecting seat, and a rotating seat is provided on the bottom side wall of the first rotating arm, a S-shaped groove is provided on the inner side of the rotating seat, a through hole is provided on the side wall of the first connecting seat, and a positioning rod is penetrated on the inner side of the through hole, a pull plate is fixedly installed on one end of the positioning rod, a first auxiliary slide is sleeved on the outer side of one end of the positioning rod, and a first spring is fixedly connected to one end of the first auxiliary slide, a S-shaped clamping plate is fixedly installed on the end of the positioning rod away from the pull plate, the top end of the first rotating arm is rotatably connected to the second rotating arm, and the other end of the second rotating arm is connected to the second connecting seat, and an auxiliary structure is provided on the side wall of the first rotating arm.

[0006] As a preferred technical solution of the utility model, the auxiliary structure includes a connecting rod, a groove and an electromagnet. The connecting rod is fixedly connected to the side wall of the first rotating arm, and the other end of the connecting rod is provided with a groove, and the inner cavity of the groove is provided with an electromagnet.

[0007] As a preferred technical solution of the utility model, the inner side wall of the second rotating arm is fixedly connected to a second spring, and the other end of the second spring is fixedly connected to an iron rod, and the outer surface of the iron rod is sleeved with a second auxiliary slide plate.

[0008] As a preferred technical solution of the present utility model, the positioning rod is slidably connected to the first connecting seat through the first auxiliary slide plate, and the positioning rod is symmetrically distributed along the vertical center line of the first connecting seat.

[0009] As a preferred technical solution of the present utility model, the connecting rods are symmetrically distributed along the vertical center line of the first rotating arm, and the grooves and the connecting rods form an integrated structure.

[0010] As a preferred technical solution of the utility model, the iron rod is slidably connected to the second rotating arm through the second spring, and the outer diameter of the iron rod is matched with the inner diameter of the groove.

[0011] Compared with the prior art, the utility model can achieve the following beneficial effects:

[0012] 1. By using the positioning rod, the first spring and the one-shaped card plate in combination, the positioning of the rotating arm can be conveniently realized according to the actual use requirements in the subsequent use, and no external objects are needed to realize the positioning of the rotating arm. It is more convenient and quick, and has higher practicality. When the positioning rod is acted upon by the first spring, it will move laterally, and then the positioning rod will be twisted to drive the one-shaped card plate to rotate. Then, when the one-shaped card plate rotates to an angle matching the one-shaped slot, the one-shaped card plate and the one-shaped slot can be connected by a snap connection, and then the positioning of the rotating arm can be realized, which is convenient and quick.

[0013] 2. By combining the electromagnet, the iron rod and the second spring, the two rotating arms can be positioned. When the electromagnet is energized to generate magnetic force, the iron rod is attracted by the magnetic force, and then one end of the iron rod is sucked into the inner side of the groove, thereby realizing the snap connection between the iron rod and the connecting rod, thereby realizing the positioning between the two rotating arms and preventing them from rotating. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the structure of the positioning and clamping device of the heavy-duty universal cross shaft of the utility model;

[0015] Figure 2 It is a side structural schematic diagram of the first rotating arm of the positioning and clamping device of the heavy-duty universal cross shaft of the utility model;

[0016] Figure 3 It is a side structural schematic diagram of the second rotating arm of the positioning and clamping device of the heavy-duty universal cross shaft of the utility model;

[0017] Figure 4 It is a side view structural diagram of the first connecting seat of the positioning and clamping device of the heavy-duty universal cross shaft of the utility model;

[0018] Among them: 1. first connecting seat; 2. first rotating arm; 3. rotating seat; 4. straight groove; 5. through hole; 6. positioning rod; 7. pull plate; 8. first auxiliary slide plate; 9. first spring; 10. straight clamping plate; 11. second rotating arm; 12. second connecting seat; 13. connecting rod; 14. groove; 15. electromagnet; 16. second spring; 17. iron rod; 18. second auxiliary slide plate. DETAILED DESCRIPTION

[0019] In order to make the technical means, creative features, objectives and effects of the present invention easy to understand, the present invention is further described below in conjunction with specific embodiments, but the following embodiments are only preferred embodiments of the present invention, not all. Based on the embodiments in the implementation mode, other embodiments obtained by those skilled in the art without creative work are all within the protection scope of the present invention.

[0020] Example

[0021] Please refer to Figure 1 As shown, the utility model provides a positioning and clamping device for a heavy-duty cross universal shaft, comprising a first connecting seat 1, a first rotating arm 2 is connected to the inner side of the top end of the first connecting seat 1, and a rotating seat 3 is arranged on the bottom side wall of the first rotating arm 2, a straight groove 4 is arranged on the inner side of the rotating seat 3, a through hole 5 is arranged on the side wall of the first connecting seat 1, and a positioning rod 6 is penetrated on the inner side of the through hole 5, a pull plate 7 is fixedly installed on one end of the positioning rod 6, a first auxiliary slide plate 8 is sleeved on the outer side of one end of the positioning rod 6, and a first spring 9 is fixedly connected to one end of the first auxiliary slide plate 8, a straight clamping plate 10 is fixedly installed on the end of the positioning rod 6 away from the pull plate 7, a second rotating arm 11 is rotatably connected to the top end of the first rotating arm 2, and the other end of the second rotating arm 11 is connected to the second connecting seat 12, and an auxiliary structure is arranged on the side wall of the first rotating arm 2;

[0022] When in use, the two connecting seats and the rotating arm can realize multi-directional rotation of the entire universal shaft, and when the universal shaft needs to be positioned, the positioning rod 6 and the straight card plate 10 can be used to position the rotating arm and the connecting seat, and the connecting rod 13 and the iron rod 17 can realize the positioning between the two rotating arms;

[0023] As a further implementation of this embodiment, Figure 1 , Figure 2 , Figure 3 and Figure 4As shown, a first rotating arm 2 is connected to the inner side of the top end of the first connecting seat 1, and a rotating seat 3 is provided on the bottom side wall of the first rotating arm 2, a straight groove 4 is provided on the inner side of the rotating seat 3, a through hole 5 is provided on the side wall of the first connecting seat 1, and a positioning rod 6 is penetrated on the inner side of the through hole 5, the positioning rod 6 is slidably connected to the first connecting seat 1 through a first auxiliary slide 8, and the positioning rod 6 is symmetrically distributed along the vertical center line of the first connecting seat 1, a pull plate 7 is fixedly installed on one end of the positioning rod 6, a first auxiliary slide 8 is sleeved on the outer side of one end of the positioning rod 6, and a first spring 9 is fixedly connected to one end of the first auxiliary slide 8, and a straight card plate 10 is fixedly installed on the end of the positioning rod 6 away from the pull plate 7, the top end of the first rotating arm 2 is rotatably connected to the second rotating arm 11, and the other end of the second rotating arm 11 is connected to the second connecting seat 12, the first An auxiliary structure is provided on the side wall of a rotating arm 2, a connecting rod 13 is fixedly connected to the side wall of the first rotating arm 2, and a groove 14 is provided at the other end of the connecting rod 13, the connecting rod 13 is symmetrically distributed along the vertical center line of the first rotating arm 2, and the groove 14 and the connecting rod 13 form an integrated structure, an electromagnet 15 is provided in the inner cavity of the groove 14, the connecting rod 13, the groove 14 and the electromagnet 15 form an auxiliary structure, and the auxiliary structure is provided on the side wall of the first connecting seat 1, a second spring 16 is fixedly connected to the inner side wall of the second rotating arm 11, and an iron rod 17 is fixedly connected to the other end of the second spring 16, the iron rod 17 is slidably connected to the second rotating arm 11 through the second spring 16, and the outer diameter size of the iron rod 17 is adapted to the inner diameter size of the groove 14, and the outer surface of the iron rod 17 is sleeved with a second auxiliary slide plate 18;

[0024] The electromagnet 15 is electrically connected to an external power source through a wire, and the external power source can be used to provide current for the operation of the electromagnet 15, so as to facilitate the subsequent realization of the electromagnet 15 being energized to generate a magnetic attraction force;

[0025] When in use, the rotating seat 3 provided can realize the rotation processing between the first rotating arm 2 and the first connecting seat 1, and the two rotating arms are rotatably connected through the rotating shaft, thereby realizing the multi-directional rotation processing of the entire universal shaft, and when it is necessary to realize the positioning processing between the rotating arm and the connecting seat, the force applied to the pull plate 7 is released, because when the pull plate 7 moves laterally, it will drive the positioning rod 6 to move laterally, and then the positioning rod 6 drives the first auxiliary slide plate 8 to pull the first spring 9, and causes the first spring 9 to deform and generate a reverse force. Therefore, when the lateral force applied to the pull plate 7 disappears, the reverse force generated by the deformation of the first spring 9 will drive the first auxiliary slide plate 8 to rebound, and then the first auxiliary slide plate 8 drives the positioning rod 6 to penetrate the inner side of the through hole 5 and extend to the inner side of the rotating seat 3, and twists the positioning rod 6 at the same time, so that the positioning rod 6 drives the straight-line card plate 10 to rotate, and then when the straight-line card When the plate 10 is rotated to a suitable angle, it will be input into the inner side of the slot 4, thereby realizing the positioning of the rotating arm. When it is necessary to realize the positioning between the two rotating arms, the electromagnet 15 is first energized to generate magnetic attraction, and then the attraction will attract the iron rod 17, and then the iron rod 17 drives the second auxiliary slide plate 18 to move laterally. The second auxiliary slide plate 18 provided in combination can improve the stability of the iron rod 17 during the lateral movement. When one end of the iron rod 17 is input into the inner side of the groove 14, the positioning between the two rotating arms can be realized, which is convenient, fast and more practical. At the same time, when the iron rod 17 moves, it will pull the second spring 16 and cause it to deform and generate a reverse force. When the subsequent electromagnet 15 is powered off to attract it, the iron rod 17 can be retracted to the inner side of the second rotating arm 11 under the reverse force of the second spring 16, thereby realizing the normal rotation between the subsequent two rotating arms.

[0026] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the utility model and are not used to limit the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. A positioning and clamping device for a heavy-duty universal cross shaft, comprising a first connecting seat (1), characterized in that: The inner side of the top end of the first connecting seat (1) is connected to a first rotating arm (2), and the bottom side wall of the first rotating arm (2) is provided with a rotating seat (3), the inner side of the rotating seat (3) is provided with a straight groove (4), the side wall of the first connecting seat (1) is provided with a through hole (5), and the inner side of the through hole (5) is penetrated by a positioning rod (6), one end of the positioning rod (6) is fixedly installed with a pull plate (7), the outer side of one end of the positioning rod (6) is sleeved with a first auxiliary slide plate (8), and one end of the first auxiliary slide plate (8) is fixedly connected with a first spring (9), and the end of the positioning rod (6) away from the pull plate (7) is fixedly installed with a straight card plate (10), the top end of the first rotating arm (2) is rotatably connected to a second rotating arm (11), and the other end of the second rotating arm (11) is connected to a second connecting seat (12), and the side wall of the first rotating arm (2) is provided with an auxiliary structure.

2. A positioning and clamping device for a heavy-duty universal cross shaft according to claim 1, characterized in that: The auxiliary structure comprises a connecting rod (13), a groove (14) and an electromagnet (15); the connecting rod (13) is fixedly connected to the side wall of the first rotating arm (2); the other end of the connecting rod (13) is provided with a groove (14); and the inner cavity of the groove (14) is provided with an electromagnet (15).

3. A heavy-duty universal cross shaft positioning and clamping device according to claim 2, characterized in that: The inner side wall of the second rotating arm (11) is fixedly connected to a second spring (16), and the other end of the second spring (16) is fixedly connected to an iron rod (17), and the outer surface of the iron rod (17) is sleeved with a second auxiliary slide plate (18).

4. A heavy-duty universal cross shaft positioning and clamping device according to claim 1, characterized in that: The positioning rod (6) is slidably connected to the first connecting seat (1) via the first auxiliary slide plate (8), and the positioning rod (6) is symmetrically distributed along the vertical center line of the first connecting seat (1).

5. A heavy-duty universal cross shaft positioning and clamping device according to claim 2, characterized in that: The connecting rod (13) is symmetrically distributed along the vertical center line of the first rotating arm (2), and the groove (14) and the connecting rod (13) form an integrated structure.

6. A heavy-duty universal cross shaft positioning and clamping device according to claim 3, characterized in that: The iron rod (17) is slidably connected to the second rotating arm (11) via the second spring (16), and the outer diameter of the iron rod (17) is matched with the inner diameter of the groove (14).

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