Cross universal joint with large torque bearing surface

Abstract

The utility model relates to the technical field of cross universal joints, and discloses a cross universal joint with a large torque bearing surface, which comprises a cross shaft, an oil nozzle is arranged at the center of the front end surface of the cross shaft, a heat dissipation device is arranged at the center of the rear end surface of the cross shaft, and four slots are circularly arranged on the outer sides of the four end parts of the cross shaft. The outer sides of the four ends of the cross shaft are all sleeved with connecting rings, the inner walls of the four connecting rings are all provided with four inserting blocks in a circular arrangement mode, the outer sides of the four connecting rings are all sleeved with shaft sleeves, a circulation channel is formed in the center of the interior of the cross shaft, and a lubricating device is arranged in the circulation channel. According to the utility model, through the arrangement of the lubricating device, the automatic and sustainable lubricating effect during the operation of equipment is realized, the continuous supply of lubricating oil in the long-time operation process of the cross shaft is ensured, and the friction and abrasion caused by insufficient lubricating oil are reduced, so that the maintenance cost of the equipment is reduced, and the lubricating efficiency of the equipment is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of cross universal joints, in particular to a cross universal joint with a large torque bearing surface. Background Art

[0002] A universal joint is a mechanical transmission device commonly used to transmit the rotational motion of a shaft, allowing the shaft to transmit torque and speed at different angles, thereby enabling two shafts to be connected in different directions. It is widely used in automotive transmission systems, ships, aircraft, industrial machinery and other fields, and is one of the important devices for realizing shaft transmission.

[0003] When the cross universal joint is used today, the torque transmission capacity of the cross shaft is low, which may cause the failure of the transmission system and affect the performance and stability of the vehicle. During the use of the cross universal joint, it is easy to cause friction and wear due to insufficient lubricating oil, which affects the operation of the equipment. In addition, the equipment needs to be regularly inspected and maintained, and lubricating oil needs to be replenished, thereby increasing the equipment maintenance cost and lubrication efficiency. Therefore, technical personnel in this field provide a cross universal joint with a large torque bearing surface to solve the problems raised in the above background technology. Utility Model Content

[0004] The purpose of the present invention is to solve the shortcomings existing in the prior art, and a cross universal joint with a large torque bearing surface is proposed. Through the setting of the connecting ring, the diameter of the friction component is increased, so that the friction area is effectively increased, thereby improving the torque transmission capacity of the cross shaft. Then, through the sleeve connection between the slot and the plug, it is convenient for the staff to load and unload and replace the connecting ring, thereby improving convenience. Then, through the setting of the lubrication device, the automatic sustainable lubrication effect is achieved during the operation of the equipment, ensuring the continuous supply of lubricating oil to the cross shaft during long-term operation, reducing the friction and wear caused by insufficient lubricating oil, thereby reducing the equipment maintenance cost and improving the equipment lubrication efficiency. Finally, the heat dissipation inside the cross shaft is carried out by the heat dissipation device, so that it avoids the normal operation of the equipment and the damage to parts caused by high temperature, and ensures its normal operation and extends the life of parts, thereby improving the performance and reliability of the equipment.

[0005] To achieve the above object, the utility model provides the following technical scheme: A cross universal joint with large torque bearing surface, including cross axle, the cross axle front end surface center is equipped with oil nozzle, the oil nozzle output end inside is equipped with check valve, the cross axle rear end surface center is equipped with heat dissipation device, the cross axle four end portions outside all are circular and are equipped with four insertion slots, the cross axle four end portions outside all are equipped with connecting ring, four The inner wall of connecting ring all is circular and is equipped with four insertion blocks, four The outer side of connecting ring all is equipped with shaft sleeve, a plurality of needle rollers are arranged between the center of the four shaft sleeves and the four connecting rings, oil seals are arranged at one end of the four shaft sleeves, a flow channel is arranged at the center of the cross axle, and a lubricating device is arranged in the flow channel.

[0006] Through the above technical scheme, the diameter of the friction component is increased by the setting of the connecting ring, which effectively increases the friction area, thereby improving the torque transmission capacity of the cross axle. The connection ring can be easily assembled, disassembled and replaced by the staff through the sleeved connection between the insertion slot and the insertion block, thereby improving the convenience.

[0007] Further, the heat dissipation device includes heat dissipation fins, six heat receiving plates, and six heat conducting pipes. The heat dissipation fins are arranged at the rear end surface of the cross axle. The six heat receiving plates are respectively arranged at the inner center of the four end portions of the cross axle and on both sides. The six heat conducting pipes are respectively fixedly connected at the output ends of the six heat receiving plates, and the six output ends are respectively fixedly connected at the upper end surface of the heat dissipation fins.

[0008] Through the above technical scheme, the heat receiving plate receives heat conducted from the cross axle during work, and then transmits the heat to the heat conducting pipe. The heat conducting pipe effectively conducts heat to the heat dissipation fins. The heat dissipation fins are in contact with air, achieving heat dissipation effect, avoiding high temperature affecting normal operation of the equipment and causing damage to parts, ensuring normal operation and prolonging the service life of the parts, thereby improving the performance and reliability of the equipment.

[0009] Further, the lubricating device includes an oil storage tank, four baffles, and a plurality of oil outlets. The oil storage tank is arranged at the lower end surface of the flow channel, and the end portion penetrates through the rear end surface of the flow channel to the inside of the flow channel. The four baffles are respectively arranged at the inside of the flow channel. The plurality of oil outlets are respectively arranged at one side of the four baffles, and the ends respectively penetrate through one side of the four baffles to the other side of the four baffles.

[0010] Through the above technical scheme, the oil nozzle introduces lubricating oil into the inside of the oil storage tank. During equipment operation, the lubricating oil can flow into the inside of the flow channel. The baffles separate the flow channel to prevent excessive accumulation of lubricating oil in the flow channel. During equipment operation, the centrifugal force causes the lubricating oil to be guided out of the oil outlet to the cross axle connecting portion.

[0011] Furthermore, the oil nozzle output end sequentially passes through the front end surface of the cross shaft and the front end surface of the circulation channel and reaches the interior of the circulation channel;

[0012] Through the above technical solution, the lubricating oil is transported to the inside of the circulation channel through the oil nozzle, so that it is transported to the inside of the lubricating device, thereby meeting the operation of the lubricating device.

[0013] Furthermore, the circulation channel is in a cross shape, and the four ends thereof respectively pass through the cross shaft and extend to the outside of the four ends of the cross shaft;

[0014] Through the above technical solution, the cross-shaped circulation channel can evenly distribute the lubricating oil to the cross-shaft connection part, thereby achieving the lubrication effect.

[0015] Furthermore, the four slots are respectively connected to the four plug-in blocks;

[0016] Through the above technical solution, the sleeve connection between the slot and the insert block makes it convenient for workers to install, remove and replace the connecting ring, thereby improving convenience.

[0017] The utility model has the following beneficial effects:

[0018] 1. In the present invention, when a cross universal joint with a large torque bearing surface is used, the diameter of the friction component is increased by setting the connecting ring, which effectively increases the friction area, thereby improving the torque transmission capacity of the cross shaft. The sleeve connection between the slot and the insert block makes it convenient for the staff to install, remove and replace the connecting ring, thereby improving convenience.

[0019] 2. In the present invention, by setting up the lubrication device, an automatic and sustainable lubrication effect is achieved when the equipment is running, ensuring the continuous supply of lubricating oil to the cross shaft during long-term operation, reducing the friction and wear caused by insufficient lubricating oil, thereby reducing the equipment maintenance cost and improving the equipment lubrication efficiency.

[0020] 3. In the present invention, the heat dissipation inside the cross shaft is carried out by the heat dissipation device, so as to avoid the normal operation of the equipment and damage to the components due to high temperature, and ensure its normal operation and extend the life of the components, thereby improving the performance and reliability of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a three-dimensional diagram of a cross universal joint with a large torque bearing surface proposed by the present invention;

[0022] Figure 2This is a front cross-sectional view of a cross universal joint with a large torque bearing surface proposed by the present invention;

[0023] Figure 3 This is a side sectional view of a cross universal joint with a large torque bearing surface proposed by the present invention;

[0024] Figure 4 for Figure 2 A magnified schematic diagram of point A in the middle;

[0025] Figure 5 for Figure 3 Enlarged schematic diagram of point B in the middle.

[0026] Legend:

[0027] 1. Cross shaft; 2. Oil nozzle; 3. Heat dissipation device; 301. Heat dissipation fin; 302. Heat receiving plate; 303. Heat pipe; 4. Slot; 5. Connecting ring; 6. Insert block; 7. Bushing; 8. Needle roller; 9. Oil seal; 10. Circulation channel; 11. Lubrication device; 1101. Oil storage tank; 1102. Baffle; 1103. Oil outlet; 12. One-way valve. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0029] Reference Figure 1-5 The utility model provides an embodiment of a cross universal joint with a large torque bearing surface, comprising a cross shaft 1, an oil nozzle 2 is provided at the center of the front end surface of the cross shaft 1, a one-way valve 12 is provided inside the output end of the oil nozzle 2, and a heat dissipation device 3 is provided at the center of the rear end surface of the cross shaft 1. The heat dissipation device 3 is used to dissipate heat inside the cross shaft 1, so that it can avoid the normal operation of the equipment and damage to parts caused by high temperature, and ensure its normal operation and extend the life of parts, thereby improving the performance and reliability of the equipment. Four slots 4 are arranged in a circular pattern on the outer sides of the four ends of the cross shaft 1, and connecting rings 5 ​​are sleeved on the outer sides of the four ends of the cross shaft 1. Through the arrangement of the connecting rings 5, the diameter of the friction component is increased, so that the friction area is effectively increased, thereby improving the torque transmission capacity of the cross shaft 1. The inner walls of the four connecting rings 5 ​​are arranged in a circular pattern with four plug blocks 6. The sleeve connection between the slots 4 and the plug blocks 6 makes it convenient for staff to load and unload and replace the connecting rings 5, thereby improving convenience.

[0030] The four connecting rings 5 ​​are each sleeved with a shaft sleeve 7 on the outside, and a plurality of needle rollers 8 are each provided at the center between the four shaft sleeves 7 and the four connecting rings 5. An oil seal 9 is each provided at one end of the four shaft sleeves 7. A circulation channel 10 is provided at the center inside the cross shaft 1, and a lubricating device 11 is provided inside the circulation channel 10. Through the setting of the lubricating device 11, an automatic and sustainable lubrication effect is achieved during the operation of the equipment, which reduces the interval time for equipment inspection, maintenance and replenishment of lubricating oil, thereby reducing the equipment maintenance cost, improving the equipment lubrication efficiency, and increasing the service life of the equipment.

[0031] The heat dissipation device 3 includes heat dissipation fins 301, six heat-receiving plates 302 and six heat-conducting pipes 303. The heat dissipation fins 301 are arranged at the rear end surface of the cross shaft 1. The six heat-receiving plates 302 are respectively arranged at the inner center of the four ends of the cross shaft 1 on both sides. The six heat-conducting pipes 303 are respectively fixedly connected to the output ends of the six heat-receiving plates 302, and the six output ends are respectively fixedly connected to the upper end surfaces of the heat dissipation fins 301. When working, the heat receiving plates 302 receive the heat conducted from the cross shaft 1 and then transfer it to the heat-conducting pipes 303. The heat is then effectively conducted to the heat dissipation fins 301 through the heat-conducting pipes 303, and then the heat is contacted with the air through the surface of the heat dissipation fins 301, so as to achieve the heat dissipation effect, avoid the normal operation of the equipment being affected by high temperature and the damage to the components, ensure its normal operation and extend the life of the components, thereby improving the performance and reliability of the equipment.

[0032] The lubricating device 11 includes an oil storage tank 1101, four baffles 1102 and a plurality of oil outlet holes 1103. The oil storage tank 1101 is arranged at the lower end surface of the circulation channel 10, and the end portion passes through the rear end surface of the circulation channel 10 to the interior of the circulation channel 10. The four baffles 1102 are respectively arranged inside the circulation channel 10. The plurality of oil outlet holes 1103 are respectively arranged on one side of the four baffles 1102, and the end portion passes through one side of the four baffles 1102 to the other side of the four baffles 1102. The lubricating oil is introduced into the interior of the oil storage tank 1101 through the oil nozzle 2, and then the lubricating oil can be led into the interior of the circulation channel 10 when the equipment is running. The circulation channel 10 is then separated by the baffle 1102 to prevent the lubricating oil from excessively gathering inside the circulation channel 10. The lubricating oil is then guided out of the oil outlet holes 1103 to the connecting part of the cross shaft 1 through the centrifugal force when the equipment is running.

[0033] The output end of the oil nozzle 2 passes through the front end face of the cross shaft 1 and the front end face of the circulation channel 10 in sequence and passes into the interior of the circulation channel 10. The lubricating oil is transported to the interior of the circulation channel 10 through the oil nozzle 2, so that it is transported to the interior of the lubricating device 11, satisfying the operation of the lubricating device 11. The circulation channel 10 is cross-shaped, and the four ends respectively pass through the cross shaft 1 to the outside of the four ends of the cross shaft 1. Through the cross-shaped circulation channel 10, it can satisfy the requirement of evenly distributing the lubricating oil to the connection part of the cross shaft 1, thereby completing the lubrication effect. The four slots 4 are respectively connected with the four plug-in blocks 6. The sleeve connection between the slots 4 and the plug-in blocks 6 makes it convenient for the staff to load and unload and replace the connecting ring 5, thereby improving convenience.

[0034] Working principle: When a cross universal joint with a large torque bearing surface is used, the connecting ring 5 is connected to the cross shaft 1 through the sleeve connection between the slot 4 and the insert block 6, which makes it convenient for the staff to load, unload and replace the connecting ring 5, thereby improving convenience. The lubricating oil is then delivered to the inside of the circulation channel 10 through the oil nozzle 2, and then delivered to the inside of the oil storage tank 1101. When the cross universal joint is running, the diameter of the friction component is increased by the connecting ring 5, which effectively increases the friction area, thereby improving the torque transmission capacity of the cross shaft 1. The circulation channel 10 is then separated by the baffle 1102 to prevent the lubricating oil from excessively gathering inside the circulation channel 10. The lubricating oil is guided out of the oil outlet 1103 to the connection part of the cross shaft 1 through the centrifugal force during the operation of the equipment.

[0035] The cross-shaped circulation channel 10 enables the lubricating oil to be evenly distributed to the connection part of the cross shaft 1, thereby completing the lubrication effect, realizing the automatic sustainable lubrication effect during the operation of the equipment, ensuring the continuous supply of lubricating oil to the cross shaft 1 during long-term operation, reducing the friction and wear caused by insufficient lubricating oil, thereby reducing the equipment maintenance cost and improving the equipment lubrication efficiency. Finally, the heat receiving plate 302 receives the heat conducted from the cross shaft 1 during operation, and then transfers it to the heat pipe 303, and then the heat is effectively conducted to the heat dissipation fins 301 through the heat pipe 303, and then the heat is contacted with the air through the surface of the heat dissipation fins 301, so as to achieve the heat dissipation effect, and avoid the normal operation of the equipment and damage to components caused by high temperature, and ensure its normal operation and extend the life of components, thereby improving the performance and reliability of the equipment.

[0036] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A cross universal joint with a large torque bearing surface, comprising a cross shaft (1), characterized in that: An oil nozzle (2) is provided at the center of the front end face of the cross shaft (1), a one-way valve (12) is provided inside the output end of the oil nozzle (2), a heat dissipation device (3) is provided at the center of the rear end face of the cross shaft (1), four slots (4) are arranged in a circular pattern on the outside of the four ends of the cross shaft (1), connecting rings (5) are sleeved on the outside of the four ends of the cross shaft (1), four insert blocks (6) are arranged in a circular pattern on the inner walls of the four connecting rings (5), shaft sleeves (7) are sleeved on the outside of the four connecting rings (5), a plurality of roller needles (8) are provided at the center between the four shaft sleeves (7) and the four connecting rings (5), and an oil seal (9) is provided at one end of the four shaft sleeves (7). A circulation channel (10) is provided at the center inside the cross shaft (1), and a lubricating device (11) is provided inside the circulation channel (10).

2. A cross universal joint with a large torque bearing surface according to claim 1, characterized in that: The heat dissipation device (3) comprises a heat dissipation fin (301), six heat receiving plates (302) and six heat conducting pipes (303); the heat dissipation fin (301) is arranged at the rear end face of the cross shaft (1); the six heat receiving plates (302) are respectively arranged at the inner center of the four ends of the cross shaft (1) and close to both sides; the six heat conducting pipes (303) are respectively fixedly connected to the output ends of the six heat receiving plates (302), and the six output ends are respectively fixedly connected to the upper end face of the heat dissipation fin (301).

3. The cross universal joint with a large torque bearing surface according to claim 1, characterized in that: The lubricating device (11) comprises an oil storage tank (1101), four baffles (1102) and a plurality of oil outlet holes (1103); the oil storage tank (1101) is arranged at the lower end surface of the circulation channel (10), and the end thereof passes through the rear end surface of the circulation channel (10) and is connected to the interior of the circulation channel (10); the four baffles (1102) are respectively arranged inside the circulation channel (10); the plurality of oil outlet holes (1103) are respectively arranged at one side of the four baffles (1102), and the end thereof passes through one side of the four baffles (1102) and is connected to the other side of the four baffles (1102).

4. The cross universal joint with a large torque bearing surface according to claim 1, characterized in that: The output end of the oil nozzle (2) sequentially passes through the front end surface of the cross shaft (1) and the front end surface of the circulation channel (10) and reaches the interior of the circulation channel (10).

5. The cross universal joint with a large torque bearing surface according to claim 1, characterized in that: The circulation channel (10) is in the shape of a cross, and the four ends thereof respectively penetrate the cross shaft (1) and pass to the outside of the four ends of the cross shaft (1).

6. The cross universal joint with a large torque bearing surface according to claim 1, characterized in that: The four slots (4) are respectively sleeve-connected to the four inserting blocks (6).

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