Wear-resistant universal shaft coupling

Abstract

The utility model relates to the technical field of cardan shaft couplings, and discloses a wear-resistant cardan shaft coupler which comprises a sleeve, an inner bin is arranged in the sleeve, an inserting pipe is arranged on one side of the sleeve, the outer side of an inserting block fixedly connected with one side of the inserting pipe is inserted into the inner bin, and connecting devices are arranged in the sleeve and the inserting pipe. The connecting device further comprises a rotating rod, one end of the rotating rod is fixedly connected with a connecting ball, the section of the connecting ball is semicircular, the inner side of the connecting ball abuts against a limiting piece, and the limiting piece and the connecting ball are both arranged in the inner bin. According to the universal shaft coupling, the limiting piece is connected with the connecting ball, the sleeve and the inserting pipe are conveniently connected, the limiting piece slides from the outer side of the sliding ring, the detaching effect is achieved, and compared with a traditional universal shaft coupling, the two ends of the universal shaft coupling are connected through a cross-shaped connecting shaft, the abrasion degree of the coupling is reduced, and the using effect is better.

Description

Technical Field

[0001] The utility model relates to the technical field of universal shaft couplings, and more specifically to a wear-resistant universal shaft coupling. Background Art

[0002] The universal coupling utilizes the characteristics of its mechanism to make the two shafts that are not on the same axis and to achieve continuous rotation of the two connected shafts when there is an angle between the axes, and to reliably transmit torque and motion; in the prior art, the two ends of the universal coupling are often connected to a power device and an output device. When the power device at one end of the universal coupling stops providing power, the output device at the other end of the universal coupling will often continue to move for a period of time due to inertia before stopping, and the existing universal coupling often lacks shock-absorbing or buffering devices, which can easily cause damage to the universal coupling itself in the long run, reduce the service life of the coupling, and increase maintenance and repair costs.

[0003] When the existing coupling is in use, the middle connection position is usually connected by threaded connection, or by socket and plug-in connection. The connection position is prone to disconnection during use. On the other hand, there will be certain wear between the connection positions at both ends of the coupling and the external connection equipment, resulting in a short service life. Regular inspection and replacement of parts are required. Therefore, a wear-resistant universal shaft coupling is designed to solve the above problems. Utility Model Content

[0004] In order to overcome the above defects of the prior art, the utility model provides a wear-resistant universal shaft coupling to solve the problems existing in the above background technology.

[0005] The utility model provides the following technical solutions: a wear-resistant universal shaft coupling, comprising a sleeve, an inner warehouse is arranged inside the sleeve, a plug-in tube is arranged on one side of the sleeve, an outer side of a plug-in block fixedly connected to one side of the plug-in tube is plugged into the inner warehouse, a connecting device is arranged inside the sleeve and the plug-in tube, and the connecting device also includes a rotating rod, one end of the rotating rod is fixedly connected to a connecting ball, the cross-section of the connecting ball is semicircular, the inner side of the connecting ball abuts against a limit piece, and the limit piece and the connecting ball are both arranged inside the inner warehouse.

[0006] Preferably, the sleeve is fixedly connected to a first connection end on one side away from the plug-in tube, the other end of the plug-in tube is fixedly connected to a second connection end, a third connection end is provided outside the second connection end, and the structure of the third connection end is the same as that of the first connection end.

[0007] Preferably, a cross connecting shaft is provided inside the second connecting end and the third connecting end, connecting holes are provided on both sides of the second connecting end and the third connecting end, four ports of the cross connecting shaft are rotatably connected inside the four connecting holes respectively, and the outer side of the cross connecting shaft is fixed by a limiting ring.

[0008] Preferably, a through hole is provided in the middle of the second connecting end, the through hole is connected to the inner compartment, the inside of the through hole is rotatably connected to the outside of the rotating rod, the end of the rotating rod away from the connecting ball is fixedly connected to the control end, and the control end is located inside the second connecting end.

[0009] Preferably, the outer side of the rotating rod is slidably connected to the inside of the fixing piece, the outer side of the fixing piece is fixedly connected to the inside of the inner warehouse, the outer side of the rotating rod is fixedly connected to a first baffle, one side of the first baffle is fixedly connected to a first spring, the inside of the connecting ball is fixedly connected to a second spring, the outer end of the second spring is fixedly connected to one side of the sliding ring, the inside of the sliding ring is slidably connected to the outside of the rotating rod, the outer side of the rotating rod is slidably connected to a second baffle, and one side of the second baffle is fixedly connected to one side of the inner warehouse.

[0010] Preferably, the upper end of the limit member is fixedly connected to a third spring with damping, the upper end of the third spring is fixedly connected to a lifting rod, the outer side of the lifting rod is slidably connected to the lower end of the fixed plate, the upper end of the third spring is fixedly connected to the lower surface of the fixed plate, and the outer side of the fixed plate is fixedly connected to the inside of the plug-in slot.

[0011] Technical effects and advantages of the utility model:

[0012] 1. The utility model arranges a connecting device inside the connecting shaft body supported by the sleeve and the plug-in tube, uses a limit piece connected inside the connecting ball to fix the position of the plug-in tube and the sleeve, controls the rotating rod to move inward by the control end, and uses a sliding ring with an inclined outer side to help dismantle the sleeve and the plug-in tube, so that installation and disassembly are more convenient.

[0013] 2. The utility model connects the coupling body and the connecting structure at the other end by arranging a cross connecting shaft fixed by a limit ring inside the first connecting end and the second connecting end, thereby ensuring the flexibility and firmness of rotation, minimizing the degree of wear and extending the service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0015] Figure 2 It is a schematic diagram of the internal explosion structure of the second connecting end and the third connecting end of the utility model.

[0016] Figure 3It is a schematic diagram of the internal cross-sectional structure of the sleeve and the plug-in tube of the utility model.

[0017] Figure 4 It is a schematic diagram of the structure of the connecting device of the utility model.

[0018] The accompanying drawings are marked as follows: 101, sleeve; 102, plug-in tube; 103, first connecting end; 104, second connecting end; 105, third connecting end; 106, through hole; 107, connecting hole; 108, cross connecting shaft; 109, limiting ring; 110, plug-in block; 111, inner compartment; 112, plug-in slot; 2, connecting device; 201, rotating rod; 202, control end; 203, fixing member; 204, first baffle; 205, first spring; 206, second baffle; 207, sliding ring; 208, connecting ball; 209, second spring; 210, fixing plate; 211, lifting rod; 212, third spring; 213, limiting member. DETAILED DESCRIPTION

[0019] The technical solution of the present invention will be clearly and completely described below in conjunction with the drawings in the present invention. In addition, the forms of the various structures recorded in the following embodiments are merely illustrative, and the new structure involved in the present invention is not limited to the various structures recorded in the following embodiments. All other implementations obtained by ordinary technicians in this field without making creative work belong to the scope of protection of the present invention.

[0020] The utility model provides a wear-resistant universal shaft coupling, including a sleeve 101, an inner warehouse 111 is arranged inside the sleeve 101, a plug-in tube 102 is arranged on one side of the sleeve 101, a plug-in block 110 fixedly connected to one side of the plug-in tube 102 is plugged into the inner warehouse 111 on the outside, a connecting device 2 is arranged inside the sleeve 101 and the plug-in tube 102, and the connecting device 2 also includes a rotating rod 201, one end of the rotating rod 201 is fixedly connected to a connecting ball 208, the cross-section of the connecting ball 208 is semicircular, the inner side of the connecting ball 208 abuts against a limiting member 213, and the limiting member 213 and the connecting ball 208 are both arranged inside the inner warehouse 111.

[0021] Furthermore, a first connection end 103 is fixedly connected to one side of the sleeve 101 away from the plug-in tube 102, a second connection end 104 is fixedly connected to the other end of the plug-in tube 102, a third connection end 105 is provided on the outer side of the second connection end 104, and the structure of the third connection end 105 is the same as that of the first connection end 103, thereby ensuring that both ends of the coupling body composed of the sleeve 101 and the plug-in tube 102 can be normally connected to the outer structure.

[0022] Furthermore, a cross connecting shaft 108 is provided inside the second connecting end 104 and the third connecting end 105, and connecting holes 107 are provided on both sides of the second connecting end 104 and the third connecting end 105. The four ports of the cross connecting shaft 108 are rotatably connected inside the four connecting holes 107 respectively, and the outer side of the cross connecting shaft 108 is fixed by a limiting ring 109, and the cross connecting shaft 108 is used to ensure the normal rotation of the second connecting end 104 and the third connecting end 105.

[0023] Furthermore, a through hole 106 is provided in the middle of the second connecting end 104, and the through hole 106 is connected to the inner compartment 111. The inside of the through hole 106 is rotatably connected to the outside of the rotating rod 201. The end of the rotating rod 201 away from the connecting ball 208 is fixedly connected with the control end 202. The control end 202 is located inside the second connecting end 104. The control end 202 is used to control the movement of the rotating rod 201 to ensure the connection between the sleeve 101 and the plug-in tube 102 and the subsequent disassembly, making installation and disassembly more convenient.

[0024] Furthermore, the outer side of the rotating rod 201 is slidably connected to the inside of the fixing member 203, the outer side of the fixing member 203 is fixedly connected to the inside of the inner warehouse 111, the outer side of the rotating rod 201 is fixedly connected to the first baffle 204, one side of the first baffle 204 is fixedly connected to the first spring 205, the connecting ball 208 is fixedly connected to the inside of the second spring 209, the outer end of the second spring 209 is fixedly connected to one side of the sliding ring 207, the sliding ring 207 is slidably connected to the outer side of the rotating rod 201, the outer side of the rotating rod 201 is slidably connected to the second baffle 206, one side of the second baffle 206 is fixedly connected to one side of the inner warehouse 111, the upper end of the limit member 213 is fixedly connected to the third spring 212 with damping, the upper end of the third spring 212 is fixedly connected to the lifting rod 211, the outer side of the lifting rod 211 is slidably connected to the lower end of the fixed plate 210, and the third spring 212 is fixedly connected to the lifting rod 211. The upper end is fixedly connected to the lower surface of the fixing plate 210, and the outer side of the fixing plate 210 is fixedly connected to the inside of the plug-in slot 112. When in use, the plug-in block 110 at one end of the plug-in tube 102 is plugged into the inner compartment 111, and the connecting ball 208 is moved inwardly. The outer sides of the upper and lower limit members 213 slide over the connecting ball 208 and move to the inside of the connecting ball 208 for fixation, thereby ensuring the normal use of the coupling body. When disassembling, the control end 202 is used to move the rotating rod 201 inwardly to make the sliding ring 207 slide toward the outside of the limit member 213, so that the sliding ring 207 moves to the left side of the limit member 213, and then the control end 202 is pulled outward, and the outer side of the limit member 213 abuts against the inclined surface of the outer side of the sliding ring 207 to compress the second spring 209, and then moves outward through the connecting ball 208 to disconnect the connection with the connecting ball 208, thereby achieving the disassembly effect.

[0025] The working principle of the utility model is as follows: when in use, the staff inserts the plug block 110 at one end of the plug-in tube 102 into the inside of the sleeve 101, driving the connecting ball 208 to move inward, and the outer side of the connecting ball 208 slides from the outer side of the limiter 213, so that the inner side of the limiter 213 abuts against the inside of the connecting ball 208 for fixing, ensuring that the coupling body composed of the plug-in tube 102 and the sleeve 101 can be used normally, and the first connecting end 103 and the second connecting end 104 are used to connect the outer structure on both sides, and the cross connecting shaft 108 is used in the middle to achieve the effect of normal rotation. During disassembly, the handheld control end 202 pushes the rotating rod 201 inward to move it, so that the lower end of the limit member 213 passes over the outside of the sliding ring 207, and then the rotating rod 201 is pulled outward to move outward, the limit member 213 squeezes the sliding ring 207, the second spring 209 is compressed, the limit member 213 passes over the sliding ring 207 and the outside of the connecting ball 208, the limit member 213 moves upward to compress the third spring 212, and the lifting rod 211 at the upper end slides inside the fixed plate 210 to disconnect the connection between the sleeve 101 and the plug-in tube 102, thereby achieving the disassembly effect.

[0026] Finally, a few points should be explained: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, which may refer to mechanical connection or electrical connection, or internal communication between two components, or direct connection. "upper", "lower", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the object being described changes, the relative positional relationship may change;

[0027] Secondly: In the drawings of the embodiments disclosed in the present utility model, only the structures related to the embodiments disclosed in the present utility model are involved, and other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of the present utility model can be combined with each other;

[0028] Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present utility model should be included in the protection scope of the present utility model.

Claims

1. A wear-resistant universal shaft coupling, characterized in that: The invention comprises a sleeve (101), wherein an inner bin (111) is arranged inside the sleeve (101), a plug-in tube (102) is arranged on one side of the sleeve (101), an outer side of a plug-in block (110) fixedly connected to one side of the plug-in tube (102) is plugged into the inner bin (111), a connecting device (2) is arranged inside the sleeve (101) and the plug-in tube (102), and the connecting device (2) further comprises a rotating rod (201), one end of the rotating rod (201) is fixedly connected to a connecting ball (208), the cross section of the connecting ball (208) is semicircular, the inner side of the connecting ball (208) abuts against a limiting member (213), and the limiting member (213) and the connecting ball (208) are both arranged inside the inner bin (111).

2. A wear-resistant universal shaft coupling according to claim 1, characterized in that: The sleeve (101) is fixedly connected to a first connection end (103) at one side away from the plug-in tube (102), and the other end of the plug-in tube (102) is fixedly connected to a second connection end (104). A third connection end (105) is provided outside the second connection end (104), and the structure of the third connection end (105) is the same as that of the first connection end (103).

3. A wear-resistant universal shaft coupling according to claim 2, characterized in that: A cross connecting shaft (108) is provided inside the second connecting end (104) and the third connecting end (105); connecting holes (107) are provided on both sides of the second connecting end (104) and the third connecting end (105); four ends of the cross connecting shaft (108) are rotatably connected inside the four connecting holes (107) respectively; and the outer side of the cross connecting shaft (108) is fixed by a limiting ring (109).

4. A wear-resistant universal shaft coupling according to claim 3, characterized in that: A through hole (106) is provided in the middle of the second connecting end (104), and the through hole (106) is connected to the inner compartment (111). The inside of the through hole (106) is rotatably connected to the outside of the rotating rod (201), and one end of the rotating rod (201) away from the connecting ball (208) is fixedly connected to the control end (202), and the control end (202) is located inside the second connecting end (104).

5. A wear-resistant universal shaft coupling according to claim 4, characterized in that: The outer side of the rotating rod (201) is slidably connected to the inside of the fixing member (203), and the outer side of the fixing member (203) is fixedly connected to the inside of the inner bin (111). The outer side of the rotating rod (201) is fixedly connected to a first baffle (204), and one side of the first baffle (204) is fixedly connected to a first spring (205). The connecting ball (208) is fixedly connected to a second spring (209), and the outer end of the second spring (209) is fixedly connected to one side of a sliding ring (207). The sliding ring (207) is slidably connected to the outer side of the rotating rod (201). The outer side of the rotating rod (201) is slidably connected to a second baffle (206), and one side of the second baffle (206) is fixedly connected to one side of the inside of the inner bin (111).

6. A wear-resistant universal shaft coupling according to claim 1, characterized in that: The upper end of the limiting member (213) is fixedly connected to a third spring (212) with damping, the upper end of the third spring (212) is fixedly connected to a lifting rod (211), the outer side of the lifting rod (211) is slidably connected to the lower end of the fixed plate (210), the upper end of the third spring (212) is fixedly connected to the lower surface of the fixed plate (210), and the outer side of the fixed plate (210) is fixedly connected to the inside of the plug-in slot (112).

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