Circulating lubricating device for universal coupling

Abstract

The utility model discloses a circulating lubricating device for a universal coupling, and belongs to the technical field of universal coupling lubrication. Two layers of jackets are sleeved outside a universal shaft of the universal coupling, and an oil storage bag is arranged between the jackets and is used for storing lubricating oil; the oil storage bag is connected with oil guide ports at four corners of the cross joint through stainless steel corrugated pipes; meanwhile, the lubricating device is connected with the universal coupling through a framework oil seal, so that leakage of lubricating oil in the rotating process of the universal shaft is avoided. When the universal coupling rotates, lubricating oil in the oil storage bag flows into the cross joint through the corrugated pipe by means of gravity, and then the lubricating effect is achieved. When the lubricating oil in the oil storage bag is used for a certain period, the machine is stopped, and the lubricating oil is replaced through the oil injection port. The lubricating device is simple and reasonable in structure and convenient to manufacture, waste of lubricating oil is reduced, potential safety hazards are avoided, meanwhile, the operation stability of equipment is improved, and the failure rate of the equipment is reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of universal coupling lubrication, in particular to a universal coupling circulation lubrication device. Background Art

[0002] At present, most domestic enterprises usually use universal couplings for transmission of mechanical equipment. Universal couplings can connect two shafts at different angles and axis offsets, and have great installation flexibility. At the same time, they can withstand high-speed rotation and large-angle rotation while maintaining transmission efficiency and stable movement, and have large transmission torque. When the coupling is loaded, friction and heat are generated due to slight reciprocating motion, and the cross-joint of the coupling is often worn, resulting in frequent fractures at the cross-joint of the coupling. Therefore, the coupling should be lubricated regularly to avoid serious consequences. The lubrication cycle of the cross-section of the universal coupling is once a week. Since the equipment runs continuously, it needs to be shut down before the coupling can be thoroughly lubricated and maintained. Now, it is common for equipment to shut down due to failure due to untimely maintenance of the coupling. In the prior art, manual oil dripping lubrication is usually adopted for the cross-section of the universal coupling. When the coupling rotates at high speed, it may cause safety hazards to personnel. Secondly, the lubricating oil in the dripping lubrication cannot reach the cross-section contact surface and cannot play a good lubrication effect. In addition, during the dripping lubrication process, the lubricating oil often drips onto the equipment or the ground, resulting in a waste of lubricating oil and time-consuming and labor-intensive work. Utility Model Content

[0003] The utility model aims to provide a universal coupling circulation lubrication device which has a simple and reasonable structure, is economical and practical, and has obvious use effect, so as to solve the problems raised in the background technology.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a universal joint circulation lubrication device, characterized in that two layers of jackets are arranged outside the universal shaft, and an oil storage bag is arranged in the middle of the jackets, and the oil storage bag is used to store lubricating oil; the oil storage bag is provided with an oil guide port, and the oil guide port is connected to the cross-section of the universal shaft.

[0005] Furthermore, the connection between the oil storage bag and the universal shaft is connected by a skeleton oil seal.

[0006] Furthermore, an oil filling port is provided on the oil storage bag.

[0007] Furthermore, the four corners of the cross are connected to the oil guide port of the oil storage bag through stainless steel bellows.

[0008] Furthermore, the oil storage bag is made of 316L stainless steel to prevent the lubricating oil from corroding the device.

[0009] Furthermore, the connection between the oil storage bag and the cross-shaped member adopts a concave surface structure, which makes it easier for the lubricating oil to flow into the cross-shaped member smoothly by gravity, thereby achieving a better lubrication effect.

[0010] Furthermore, the cross-head body adopts a stainless steel bellows, which is convenient for the device to achieve optimal shock absorption during the rotation of the universal shaft, while compensating for the displacement difference and angle difference caused by the operation of the universal shaft.

[0011] Compared with the prior art, the beneficial effects of the utility model are: 1) simple and reasonable structure, easy processing and manufacturing; 2) improved operating stability of the equipment, reduced equipment failure rate; 3) avoided safety hazards when personnel added lubricating oil, while reducing the waste of lubricating oil, and can reduce costs.

[0012] In order to more clearly illustrate the functional characteristics and structural parameters of the utility model, further description is given below in conjunction with the accompanying drawings and specific implementation methods. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of the present application. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:

[0014] Figure 1 It is a schematic diagram of the cross-sectional structure of a circulation lubrication device of a universal coupling;

[0015] Figure 2 It is a schematic diagram of the overall structure of a circulation lubrication device for a universal coupling;

[0016] The reference numerals in the figure are: 1-universal shaft, 2-oil storage bag, 3-cross head, 4-skeleton oil seal, 5-oil filling port, 6-oil guide port. DETAILED DESCRIPTION

[0017] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments; based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0018] like Figure 1 , Figure 2As shown, a circulating lubrication device for a universal coupling includes components such as a universal shaft 1, an oil storage bag 2, a cross head 3, a skeleton oil seal 4, an oil filling port 5 and an oil guide port 6. The outer shell of the universal shaft 1 of the universal coupling is provided with two layers of jackets, and the middle of the jacket is an oil storage bag 2 for storing lubricating oil; the oil storage bag 2 is connected to the four corner oil guide ports 6 of the cross head 3 through a stainless steel bellows, and the lubricating device is connected to the universal coupling by a skeleton oil seal 4. When the universal coupling rotates, the lubricating oil in the oil storage bag 2 flows into the cross head 3 through the bellows by gravity, thereby playing a lubricating role. When the lubricating oil in the oil storage bag 2 is used up to a certain period of time, the machine is stopped at an appropriate time to replace the lubricating oil through the oil filling port 5. The utility model invention has a simple and reasonable structure, is easy to manufacture, reduces the waste of lubricating oil, avoids safety hazards, and at the same time improves the operating stability of the equipment and reduces the equipment failure rate.

[0019] Specifically, in one embodiment, the lubrication device and the universal coupling are sealed with a skeleton oil seal 4 to prevent the lubricating oil from leaking when the universal shaft 1 rotates.

[0020] Specifically, in one embodiment, the oil storage bag 2 and the cross head 3 are connected by a stainless steel bellows, and the lubrication direction of the bellows is timely adjusted according to the rotation deviation angle of the universal shaft 1 to ensure that the lubrication efficiency and lubrication stability are maintained under high-speed rotation and large-angle rotation.

[0021] Specifically, in one embodiment, an oil filling port 5 is provided to facilitate replacement of the lubricating oil in the oil storage bag 2 .

[0022] Specifically, in one embodiment, the oil storage bag 2 is made of 316L stainless steel to prevent the lubricating oil from corroding the device.

[0023] Specifically, in one embodiment, a concave surface structure is adopted at the connection between the oil storage bag 2 and the cross section 3, so that the lubricating oil can flow smoothly into the cross section by gravity, thereby achieving a better lubrication effect.

[0024] Specifically, in one embodiment, the body of the cross 3 is made of a stainless steel bellows, so that the device can achieve optimal shock absorption during the rotation of the universal shaft, while compensating for the displacement difference and angle difference caused by the operation of the universal shaft.

[0025] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0026] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A universal coupling circulating lubrication device, characterized in that: Two layers of jackets are arranged outside the universal shaft (1), and an oil storage bag (2) is arranged in the middle of the jackets. The oil storage bag (2) is used to store lubricating oil. The oil storage bag (2) is provided with an oil guide port (6), and the oil guide port (6) is connected to a cross-piece (3) of the universal shaft (1).

2. A universal joint circulation lubrication device according to claim 1, characterized in that: The connection between the oil storage bag (2) and the universal shaft (1) is connected by a skeleton oil seal (4).

3. A universal joint circulation lubrication device according to claim 1, characterized in that: The oil storage bag (2) is provided with an oil filling port (5).

4. A universal joint circulation lubrication device according to claim 1, characterized in that: The four corners of the cross-shaped member (3) are connected to the oil guide port (6) of the oil storage bag (2) through a stainless steel bellows.

5. A universal joint circulation lubrication device according to claim 1, characterized in that: The material of the oil storage bag (2) is 316L stainless steel.

6. A universal joint circulation lubrication device according to claim 1, characterized in that: The connection between the oil storage bag (2) and the cross-head (3) adopts a concave surface structure.

7. A universal joint circulation lubrication device according to claim 1, characterized in that: The cross byte (3) body is made of stainless steel bellows.

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