Tripod with damping function

Abstract

The utility model relates to the technical field that pins radially extend outwards from half couplings, and discloses a tripod with a damping function, which comprises a ball cage, a transmission shaft is fixedly connected to the right side of the ball cage, a tripod ring is slidably connected to the inside of the ball cage, a plurality of limiting strips are fixedly connected to the inner surface of the tripod ring, and the limiting strips are fixedly connected to the inner surface of the tripod ring. A plurality of limiting strips are fixedly connected to the outer surface of the three-pin ring, the limiting strips are arranged in an annular array, three pin shafts are fixedly connected to the outer surface of the three-pin ring, the three pin shafts are arranged in an annular array, stabilizing mechanisms are arranged on the three pin shafts, and each stabilizing mechanism comprises a supporting gasket, a lower baffle ring, an inner ball ring, a rubber pad, an outer ball ring, a plurality of roller pins, a mounting ring groove, a threaded ring and an upper baffle ring. According to the tripod, the roller pin can be stably connected with the ball ring and the pin shaft, vibration generated when the tripod works can be effectively reduced through stable connection, then the working noise of the tripod is reduced, and meanwhile the service life of the tripod is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of pins extending radially outward from a half-coupling, in particular to a tripod pin with a shock-absorbing function. Background Art

[0002] The tripod is a component used in mechanical transmission devices, mainly used to improve transmission efficiency and stability. It consists of a tripod bracket, a pin shaft and a ball ring. The pin shaft is covered with a ball ring, and a needle roller is provided between the inner wall of the ball ring and the outer wall of the pin shaft. The support and rolling of the needle roller enable the tripod to rotate flexibly and operate stably. It is widely used in various vehicle systems, mining machinery, aviation machinery, precision machinery and other fields.

[0003] The needle roller of the tripod is set between the ball ring and the pin shaft. The surface of the needle roller collides with the inner wall of the ball ring and the outer wall of the pin shaft. When the tripod is in use, the needle roller will become loose between the ball ring and the pin shaft, and may even run out from between the ball ring and the pin shaft, causing unstable operation of the tripod. The unstable connection will cause the tripod to generate greater vibration during operation, which will lead to excessive operating noise of the tripod, affect the normal use of the tripod, and shorten its service life. Utility Model Content

[0004] (1) Technical problems solved

[0005] In response to the shortcomings of the existing technology, the utility model provides a tripod with a shock-absorbing function, which has the function of stably connecting the needle roller, the ball ring and the pin shaft. The stable connection can effectively reduce the vibration generated by the tripod during operation, thereby reducing the working noise of the tripod, and also prolonging the service life of the tripod.

[0006] (2) Technical solution

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a tripod with a shock-absorbing function, comprising a ball cage, a tripod ring slidably connected to the interior of the ball cage, and three pins fixedly connected to the outer surface of the tripod ring;

[0008] The three pins are arranged in a circular array, and each of the three pins is provided with a stabilizing mechanism, which can make the connection on the tripod pin more stable, and the connection structure of the three stabilizing mechanisms is the same;

[0009] The stabilizing mechanism comprises a supporting washer, a lower retaining ring, an inner ball ring, a rubber pad, an outer ball ring, a plurality of roller needles, a mounting ring groove, a threaded ring and an upper retaining ring.

[0010] Preferably, a transmission shaft is fixedly connected to the right side of the ball cage, and a plurality of limit bars are fixedly connected to the inner surface of the three-pin ring, and the plurality of limit bars are arranged in a ring array.

[0011] Preferably, the support washer is slidably sleeved on the outer surface of the pin shaft, and the lower side of the support washer is in contact with the outer surface of the three-pin ring;

[0012] The lower retaining ring is slidably sleeved on the outer surface of the pin shaft, the lower retaining ring is provided on the upper side of the support gasket, and the inner ball ring is movably sleeved on the outer surface of the pin shaft.

[0013] Preferably, the inner ball ring is arranged on the upper side of the lower retaining ring, the rubber pad is fixedly connected to the inner surface of the inner ball ring, and the rubber pad is in contact with the inner surface of the pin shaft;

[0014] The outer ball ring is movably sleeved on the outer surface of the inner ball ring, and a plurality of roller needles are arranged in an annular array between the rubber pad and the outer ball ring.

[0015] Preferably, the needle roller contacts the rubber pad and the outer ball ring, and the mounting ring groove is provided on the outer surface of the pin shaft;

[0016] The mounting ring groove is arranged on the upper side of the inner ball ring, the threaded ring is fixedly connected to the inside of the mounting ring groove, and the threads of the threaded ring are arranged on the outer surface.

[0017] Preferably, the upper retaining ring is threadedly sleeved on the outer surface of the pin shaft, the upper retaining ring is threadedly connected to the threaded ring, and the needle rollers are arranged between the lower retaining ring and the upper retaining ring.

[0018] (3) Beneficial effects

[0019] Compared with the prior art, the present invention provides a tripod with a shock-absorbing function, which has the following beneficial effects:

[0020] (1) The tripod with a shock-absorbing function has a lower retaining ring and an upper retaining ring that block and limit the inner ball ring, the outer ball ring and the needle roller when the tripod is working, thereby preventing the needle roller from falling off between the inner ball ring and the outer ball ring, and preventing the connection between the inner ball ring, the outer ball ring and the needle roller from loosening, ensuring the stability of the work, and avoiding large vibrations and noises caused by loose connections. In this way, the needle roller can be stably connected to the ball ring and the pin shaft. The stable connection can effectively reduce the vibration generated when the tripod is working, thereby reducing the working noise of the tripod, and also improving the service life of the tripod.

[0021] (2) The tripod pin with a shock-absorbing function is fixedly connected to the inner surface of the inner ball ring through a rubber pad. The rubber pad contacts the inner surface of the pin shaft in such a way that the rubber pad can absorb the vibration generated during operation, thereby reducing the transmission of vibration during operation and further improving the stability of the tripod pin during operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1This is a schematic diagram of a tripod structure with a shock-absorbing function according to the present invention;

[0023] Figure 2 This is a schematic diagram of the cross-sectional connection structure of the pin shaft of the present invention;

[0024] Figure 3 for Figure 2 A magnified schematic diagram of .

[0025] In the figure: 1. Ball cage; 2. Drive shaft; 3. Three-pin ring; 4. Limit strip; 5. Pin shaft; 6. Support gasket; 7. Lower retaining ring; 8. Inner ball ring; 9. Rubber pad; 10. Outer ball ring; 11. Needle roller; 12. Mounting ring groove; 13. Threaded ring; 14. Upper retaining ring. DETAILED DESCRIPTION

[0026] 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.

[0027] See also Figures 1 to 3 The utility model provides a new technical solution: a tripod with a shock-absorbing function, comprising a ball cage 1, a transmission shaft 2 fixedly connected to the right side of the ball cage 1, a tripod ring 3 slidingly connected to the inside of the ball cage 1, a plurality of limit bars 4 fixedly connected to the inner surface of the tripod ring 3, a plurality of limit bars 4 arranged in a ring array, and three pin shafts 5 fixedly connected to the outer surface of the tripod ring 3, the three pin shafts 5 arranged in a ring array, and a stabilizing mechanism is provided on the three pin shafts 5, which can make the connection on the tripod more stable through the stabilizing mechanism. The connection structure of the three stabilizing mechanisms is the same, and the upper side stabilizing mechanism is used as the main body for explanation below. The stabilizing mechanism includes a support gasket 6, a lower retaining ring 7, an inner ball ring 8, a rubber pad 9, an outer ball ring 10, a plurality of roller needles 11, a mounting ring groove 12, a threaded ring 13 and an upper retaining ring 14.

[0028] Furthermore, the support washer 6 is slidably sleeved on the outer surface of the pin 5, and the lower side of the support washer 6 is fitted with the outer surface of the three-pin ring 3. The lower retaining ring 7 is slidably sleeved on the outer surface of the pin 5. The lower retaining ring 7 is provided on the upper side of the support washer 6. The inner ball ring 8 is movably sleeved on the outer surface of the pin 5. The inner ball ring 8 is provided on the upper side of the lower retaining ring 7. The rubber pad 9 is fixedly connected to the inner surface of the inner ball ring 8. The rubber pad 9 contacts the inner surface of the pin 5. The outer ball ring 10 is movably sleeved on the outer surface of the inner ball ring 8. Several rollers The needles 11 are arranged in a circular array between the rubber pad 9 and the outer ball ring 10, the needle rollers 11 are in contact with the rubber pad 9 and the outer ball ring 10, the mounting ring groove 12 is opened on the outer surface of the pin 5, the mounting ring groove 12 is set on the upper side of the inner ball ring 8, the threaded ring 13 is fixedly connected to the inside of the mounting ring groove 12, the thread of the threaded ring 13 is set on the outer surface, the upper retaining ring 14 is threadedly sleeved on the outer surface of the pin 5, the upper retaining ring 14 is threadedly connected to the threaded ring 13, and the needle rollers 11 are arranged between the lower retaining ring 7 and the upper retaining ring 14.

[0029] Furthermore, during installation, first put the support gasket 6 on the pin shaft 5, and then adjust the support gasket 6 so that its lower side fits with the outer surface of the three-pin ring 3, and then put the lower retaining ring 7 on the pin shaft 5, and then put the inner ball ring 8 on the pin shaft 5, and then put the outer ball ring 10 on the outer surface of the inner ball ring 8, and then put the needle roller 11 between the rubber pad 9 and the outer ball ring 10, and finally put the upper retaining ring 14 on the pin shaft 5, and at the same time tighten the upper retaining ring 14 and the threaded ring 13, and then use the same method to complete the installation of the stabilizing mechanisms on the other two pin shafts 5, and then slide the three pin rings 3 and their connecting structure into the interior of the ball cage 1.

[0030] When the tripod is working, the lower retaining ring 7 and the upper retaining ring 14 will block and limit the inner ball ring 8, the outer ball ring 10 and the needle roller 11, thereby preventing the needle roller 11 from falling off from between the inner ball ring 8 and the outer ball ring 10, and preventing the connection between the inner ball ring 8, the outer ball ring 10 and the needle roller 11 from loosening, ensuring the stability of the work and avoiding the large vibration and noise caused by loose connection. At the same time, the rubber pad 9 can also absorb the vibration generated during work, thereby reducing the transmission of vibration during work, and further improving the stability of the tripod during work. In this way, the needle roller 11 can be stably connected to the ball ring and the pin shaft 5. The stable connection can effectively reduce the vibration generated when the tripod is working, thereby reducing the working noise of the tripod, and also improving the service life of the tripod.

[0031] Working principle: During installation, first put the support gasket 6 on the pin 5, and then adjust the support gasket 6 so that its lower side fits with the outer surface of the three-pin ring 3, and then put the lower retaining ring 7 on the pin 5, and then put the inner ball ring 8 on the pin 5, and then put the outer ball ring 10 on the outer surface of the inner ball ring 8, and then put the needle roller 11 between the rubber pad 9 and the outer ball ring 10, and finally put the upper retaining ring 14 on the pin 5, and at the same time tighten the upper retaining ring 14 and the threaded ring 13, and then use the same method to complete the installation of the stabilizing mechanisms on the other two pins 5, and then slide the three-pin ring 3 and its connecting structure into the interior of the ball cage 1.

[0032] When the tripod is working, the lower retaining ring 7 and the upper retaining ring 14 will block and limit the inner ball ring 8, the outer ball ring 10 and the needle roller 11, thereby preventing the needle roller 11 from falling off from between the inner ball ring 8 and the outer ball ring 10, and preventing the connection between the inner ball ring 8, the outer ball ring 10 and the needle roller 11 from loosening, ensuring the stability of the work and avoiding large vibrations and noises caused by loose connections. At the same time, the rubber pad 9 can also absorb the vibrations generated during work, thereby reducing the transmission of vibrations during work and further improving the stability of the tripod during work.

[0033] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A tripod with a shock-absorbing function, comprising a ball cage (1), wherein a tripod ring (3) is slidably connected to the interior of the ball cage (1), and three pin shafts (5) are fixedly connected to the outer surface of the tripod ring (3); The three pins (5) are arranged in a ring array, characterized in that: The three pin shafts (5) are all provided with a stabilizing mechanism, which can make the connection on the tripod pin more stable, and the connection structure of the three stabilizing mechanisms is the same; The stabilizing mechanism comprises a supporting washer (6), a lower retaining ring (7), an inner ball ring (8), a rubber pad (9), an outer ball ring (10), a plurality of needle rollers (11), a mounting ring groove (12), a threaded ring (13) and an upper retaining ring (14).

2. The tripod with shock-absorbing function according to claim 1, characterized in that: The right side of the ball cage (1) is fixedly connected to a transmission shaft (2), and the inner surface of the three-pin ring (3) is fixedly connected to a plurality of limit bars (4), which are arranged in a ring array.

3. The tripod with shock-absorbing function according to claim 1, characterized in that: The support washer (6) is slidably sleeved on the outer surface of the pin shaft (5), and the lower side of the support washer (6) is in contact with the outer surface of the three-pin ring (3); The lower retaining ring (7) is slidably sleeved on the outer surface of the pin shaft (5), the lower retaining ring (7) is provided with the upper side of the support washer (6), and the inner ball ring (8) is movably sleeved on the outer surface of the pin shaft (5).

4. The tripod with shock-absorbing function according to claim 3, characterized in that: The inner ball ring (8) is arranged on the upper side of the lower retaining ring (7), and the rubber pad (9) is fixedly connected to the inner surface of the inner ball ring (8), and the rubber pad (9) is in contact with the inner surface of the pin shaft (5); The outer ball ring (10) is movably sleeved on the outer surface of the inner ball ring (8), and a plurality of roller needles (11) are arranged in an annular array between the rubber pad (9) and the outer ball ring (10).

5. The tripod with shock-absorbing function according to claim 4, characterized in that: The needle roller (11) contacts the rubber pad (9) and the outer ball ring (10), and the mounting ring groove (12) is provided on the outer surface of the pin shaft (5); The mounting ring groove (12) is arranged on the upper side of the inner ball ring (8), the threaded ring (13) is fixedly connected to the inside of the mounting ring groove (12), and the threads of the threaded ring (13) are arranged on the outer surface.

6. The tripod with shock-absorbing function according to claim 1, characterized in that: The upper retaining ring (14) is threadedly sleeved on the outer surface of the pin shaft (5), the upper retaining ring (14) is threadedly connected to the threaded ring (13), and the needle rollers (11) are arranged between the lower retaining ring (7) and the upper retaining ring (14).

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