A friction type damper with a reset function

Abstract

The present invention discloses a friction type damper with a reset function, which comprises a first support, a second support and a third support arranged in sequence from top to bottom. A steering wheel is rotatably installed on the first support, a roller is rotatably installed on the second support, and a friction plate abutted against the roller is also installed on the second support. When the roller rotates, friction can be generated with the friction plate. The third support is connected to the lower end of a first spring, the upper end of the first spring is connected to the lower end of a traction rope, and the upper end of the traction rope is sequentially wound around the roller and the steering wheel and then connected to the goods. The purpose is to provide a friction type damper with a reset function, which occupies less space transversely, is convenient for layout, has a reset function, and can reduce the amplitude and time of the swing of the goods, thereby protecting the goods from being damaged by an earthquake.

Description

Technical Field

[0001] The present invention relates to a damper, and in particular to a friction damper. Background Art

[0002] When storing goods, a viscous damper is usually used to reduce the swing of the goods during an earthquake, that is, to reduce the amplitude and time of the swing of the goods, so as to protect the goods from being damaged by the earthquake. However, the existing viscous dampers are generally slender, occupying a large lateral dimension space, resulting in difficult lateral layout and no reset function. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to provide a friction damper with a reset function, which occupies a smaller lateral space, is convenient for layout, has a reset function, and can reduce the amplitude and time of the swing of the goods, so as to protect the goods from being damaged by the earthquake.

[0004] The friction damper with a reset function of the present invention includes a first support, a second support, and a third support arranged in sequence from top to bottom. A steering wheel is rotatably installed on the first support, a roller is rotatably installed on the second support, and a friction plate is also installed on the second support and abuts against the roller. When the roller rotates, friction can be generated with the friction plate. The third support is connected to the lower end of a first spring, and the upper end of the first spring is connected to the lower end of a traction rope. The upper end of the traction rope is sequentially wound around the roller and the steering wheel and then connected to the goods.

[0005] In the friction damper with a reset function of the present invention, a crankshaft is provided on the second support. The roller includes an outer cylinder, a one-way overrunning clutch, and an inner cylinder. The inner cylinder is rotatably installed on the crankshaft. The outer cylinder wall of the inner cylinder is connected to the inner ring of the one-way overrunning clutch, and the outer ring of the one-way overrunning clutch is connected to the inner cylinder wall of the outer cylinder. The traction rope is wound around the outer cylinder wall of the outer cylinder. A first radial flange is provided at one end of the inner cylinder, a first baffle is provided on the crankshaft, the first baffle is arranged close to the first radial flange, and the friction plate is arranged between the first baffle and the first radial flange. The friction plate is slidably sleeved on the crankshaft through a first slider and a first chute, the friction plate abuts against the first radial flange, and a second spring is installed between the friction plate and the first baffle. The second spring is sleeved on the crankshaft.

[0006] The friction type damper with a reset function of the present invention, wherein the crankshaft includes two horizontally arranged first shafts and second shafts, the first shaft and the second shaft are fixedly connected by a third shaft, a vertically arranged fourth shaft is fixedly connected to the second shaft, the fourth shaft is hinged on the second support, a first clamping platform is provided at one end of the first shaft close to the third shaft, a second baffle is sleeved on the first shaft, the second baffle abuts against the first clamping platform, the inner cylinder body is rotatably installed on the first shaft on the side of the second baffle away from the third shaft through a bushing or a bearing, a first radial flange is provided at one end of the inner cylinder body away from the second baffle, the friction plate is slidably sleeved on the first shaft through a first slider and a first chute, the first baffle is arranged on the first shaft, the second spring is sleeved on the first shaft, a second clamping platform is provided between the outer cylinder wall of the inner cylinder body and the first radial flange, a cylinder pad is slidably sleeved on the outer cylinder wall at one end of the inner cylinder body away from the first radial flange through a second slider and a second chute, the inner ring of the one-way overrunning clutch abuts between the cylinder pad and the second clamping platform, the inner ring of the one-way overrunning clutch is connected to the outer cylinder wall of the inner cylinder body by a key, a thrust washer is provided between the cylinder pad and the second baffle, the thrust washer is fixedly arranged on the second baffle, the cylinder pad abuts against the thrust washer, the first baffle and the second baffle are fixedly connected by a first pin shaft, and the first pin shaft is located outside the outer cylinder body.

[0007] The friction type damper with a reset function of the present invention, wherein a second radial flange is provided at one end of the outer cylinder body close to the second baffle, an annular cover plate is fixedly provided at one end of the outer cylinder body away from the second baffle, the outer ring of the one-way overrunning clutch abuts between the annular cover plate and the second radial flange, and the outer ring of the one-way overrunning clutch is connected to the inner cylinder wall of the outer cylinder body by a key.

[0008] The friction type damper with a reset function of the present invention, wherein the first baffle is slidably sleeved on the first shaft through a third slider and a third chute, a nut is threadedly connected to one end of the first shaft away from the third shaft, the nut and the second spring are respectively located on opposite sides of the first baffle, and the nut abuts against the first baffle.

[0009] The friction type damper with a reset function of the present invention, wherein a positioning groove is provided at one end of the nut away from the first baffle, a positioning hole is provided on the first shaft, the positioning groove and the positioning hole are arranged oppositely, and a stop pin is inserted into the positioning groove and the positioning hole.

[0010] The friction type damper with a reset function of the present invention, wherein a swing arm is hinged to the first support through a vertically arranged second pin shaft, and a steering wheel is rotatably installed on the swing arm in the horizontal direction.

[0011] The friction-type damper with a reset function according to the present invention, wherein two oppositely arranged lugs are fixedly provided on the third support, a third pin shaft is connected between the two lugs, and the lower end of the first spring is sleeved on the third pin shaft.

[0012] The friction-type damper with a reset function according to the present invention, wherein the second spring is a disc spring and the towing rope is a steel wire rope.

[0013] The friction-type damper with a reset function according to the present invention, wherein two one-way overrunning clutches are provided, the two one-way overrunning clutches are arranged side by side and abutted against each other, the inner ring and the outer ring of one one-way overrunning clutch are respectively abutted against the second clamping platform and the annular cover plate, and the inner ring and the outer ring of the other one-way overrunning clutch are respectively abutted against the cylinder gasket and the second radial flange.

[0014] The difference between the friction-type damper with a reset function according to the present invention and the prior art is that when the present invention is in use, the first support, the second support and the third support are fixed on a vertical wall or other vertical structures, the upper end of the towing rope is connected to the goods, usually the towing rope is in a slack state, under earthquake conditions, the goods swing away from the first support, so the goods drive the upper end of the towing rope to stretch, making the towing rope taut. As the goods continue to swing, the towing rope drives the roller to rotate forward, so friction is generated between the roller and the friction plate, consuming the swinging energy and playing a damping role. In addition, when the towing rope is tightened upward and drives the roller to rotate forward, the lower end of the towing rope also pulls the first spring upward, making the first spring longer, which can also produce a damping effect. When the goods swing in the reverse direction, that is, swing close to the first support, the first spring restores and pulls the roller to rotate in the reverse direction through the towing rope until the roller and the towing rope return to the initial state. It can be seen that the present invention occupies less space horizontally, is convenient for layout, has a reset function, and can reduce the amplitude and time of the goods swinging, thereby protecting the goods from being damaged by the earthquake.

[0015] The present invention will be further described below with reference to the accompanying drawings. Description of the Drawings

[0016] Figure 1 is the front view of the friction-type damper with a reset function according to the present invention;

[0017] Figure 2 is the sectional view along the Figure 1 line A-A in

[0018] Figure 3 is the left view of the friction-type damper with a reset function according to the present invention;

[0019] Figure 4 is the right view of the friction-type damper with a reset function according to the present invention;

[0020] Figure 5 Three-dimensional view of the friction damper with reset function of the present invention Figure 1 ;

[0021] Figure 6 Three-dimensional view of the friction damper with reset function of the present invention Figure 2 。 Detailed implementation manners

[0022] As Figure 1 shown and in combination with Figures 2 - 6 shown, the friction damper with reset function of the present invention includes a first support 3, a second support 10, and a third support 17 arranged in sequence from top to bottom. A steering wheel 4 is rotatably installed on the first support 3, a roller is rotatably installed on the second support 10, and a friction plate 28 abutted against the roller is further installed on the second support 10. When the roller rotates, friction can be generated between the roller and the friction plate 28. The third support 17 is connected to the lower end of a first spring 14, the upper end of the first spring 14 is connected to the lower end of a towing rope 5, and the upper end of the towing rope 5 is connected to a cargo after sequentially bypassing the roller and the steering wheel 4. When the towing rope 5 bypasses the roller, it is wound around the roller for multiple turns.

[0023] When the present invention is in use, the first support 3, the second support 10, and the third support 17 are fixed to a vertical wall or other vertical structures by bolts or welding. The upper end of the towing rope 5 is connected to the cargo. Usually, the towing rope 5 is in a slack state. Under earthquake conditions, the cargo swings away from the first support 3, so the upper end of the towing rope 5 driven by the cargo is stretched, making the towing rope 5 tightened. As the cargo continues to swing, the towing rope 5 drives the roller to rotate forward, so friction is generated between the roller and the friction plate 28, consuming the swinging energy and playing a damping role. In addition, when the towing rope 5 is tightened upward and drives the roller to rotate forward, the lower end of the towing rope 5 also pulls the first spring 14 upward, making the first spring 14 longer, which can also generate a damping effect. When the cargo swings in the reverse direction, that is, swings towards the first support 3, the first spring 14 restores and drives the roller to rotate in the reverse direction through the towing rope 5 until the roller and the towing rope 5 return to the initial state. It can be seen that the present invention occupies a small space horizontally, is convenient for layout, has a reset function, and can reduce the amplitude and time of the cargo swing, thereby protecting the cargo from earthquake damage.

[0024] When the first spring 14 restores, that is, changes from the stretched state to the natural state, as long as the pulling force in its stretched state is greater than the friction force between the friction plate 28 and the roller, contraction and restoration can be achieved.

[0025] As Figure 2As shown, a crankshaft 12 is provided on a second support 10. The drum includes an outer cylinder body 26, a one-way overrunning clutch, and an inner cylinder body 24. The inner cylinder body 24 is rotatably mounted on the crankshaft 12. The outer cylinder wall of the inner cylinder body 24 is connected to the inner ring 33 of the one-way overrunning clutch. The outer ring 36 of the one-way overrunning clutch is connected to the inner cylinder wall of the outer cylinder body 26. A traction rope 5 is wound around the outer cylinder wall of the outer cylinder body 26, and the traction rope 5 is wound around the outer cylinder wall of the outer cylinder body 26 for multiple turns. One end of the inner cylinder body 24 is provided with a first radial flange 27 (the first radial flange 27 and the inner cylinder body 24 are of an integrally formed structure). A first baffle 8 is provided on the crankshaft 12. The first baffle 8 is arranged close to the first radial flange 27. A friction plate 28 is provided between the first baffle 8 and the first radial flange 27. The friction plate 28 is slidably sleeved on the crankshaft 12 through a first slider and a first chute. The friction plate 28 abuts against the first radial flange 27. A second spring 34 is installed between the friction plate 28 and the first baffle 8. The second spring 34 is sleeved on the crankshaft 12. The second spring 34 is in a compressed state. Under the push of the second spring 34, the friction plate 28 slides along the crankshaft 12 gradually towards the first radial flange 27 through the first slider and the first chute until the friction plate 28 abuts against the first radial flange 27. By setting the pre-tightening force of the second spring 34, the friction force between the friction plate 28 and the first radial flange 27 can be adjusted.

[0026] The one-way overrunning clutch belongs to the prior art and includes an outer ring 36 and an inner ring 33. The working principle is as follows: When the outer ring 36 rotates in the clockwise direction, the outer ring 36 can drive the inner ring 33 to rotate in the clockwise direction together; when the outer ring 36 rotates in the counterclockwise direction, the inner ring 33 does not rotate.

[0027] As Figure 2 shown, and in combination with Figure 1 、 Figures 3 - 6As shown, when the goods swing away from the first support 3, the upper end of the towing rope 5 is tightened by the goods and moves away from the first support 3 together with the goods. The whole towing rope 5 moves upward. Then, the towing rope 5 drives the outer cylinder 26 to rotate forward (at this time, the lower end of the towing rope 5 pulls the first spring 14 upward and makes it in an extended state). The outer cylinder 26 drives the outer ring 36 of the one-way overrunning clutch to rotate forward, and the outer ring 36 drives the inner ring 33 to rotate forward. The inner ring 33 drives the inner cylinder 24 to rotate forward around the crankshaft 12. Due to the limiting effect of the first slider and the first chute, the friction plate 28 can only slide axially along the crankshaft 12 and cannot rotate around the crankshaft 12. Therefore, a relative rotation occurs between the inner cylinder 24 and the friction plate 28. That is to say, a frictional force is generated between the first radial flange 27 of the inner cylinder 24 and the friction plate 28, consuming the energy of the goods' swing and playing a damping role. When the goods swing back and approach the first support 3, the upper end of the towing rope 5 also follows the goods and approaches the first support 3, that is, the upper end of the towing rope 5 is no longer tightened by the goods. At this time, the first spring 14 in the extended state resumes its original state. Then, under the pulling of the first spring 14, the lower end of the towing rope 5 moves downward and drives the outer cylinder 26 to rotate backward. The outer cylinder 26 drives the outer ring 36 of the one-way overrunning clutch to rotate backward. When the outer ring 36 rotates backward, the inner ring 33 does not rotate, so the inner cylinder 24 does not rotate either. That is to say, no relative rotation occurs between the first radial flange 27 of the inner cylinder 24 and the friction plate 28, and no frictional force is generated between them. In this way, when the first spring 14 pulls the towing rope 5 downward, it does not need to overcome the frictional force between the first radial flange 27 and the friction plate 28 and can easily complete the restoration and contraction. After the first spring 14 completes the restoration and contraction, the towing rope 5 and the drum return to the initial state.

[0028] As Figure 2 shown, and in combination with Figure 1 、 Figures 3 - 6 shown, the crankshaft 12 includes two horizontally arranged first shafts 32 and second shafts 18. The first shaft 32 and the second shaft 18 are fixedly connected by a third shaft 19. The third shaft 19 is inclined, that is, the height of the first shaft 32 is higher than the height of the second shaft 18. A vertically arranged fourth shaft 37 is fixedly connected to the second shaft 18. The fourth shaft 37 is hinged to the second support 10. That is to say, the fourth shaft 37 is rotatably installed on the second support 10 in the vertical direction. As for the way the fourth shaft 37 is rotatably installed on the second support 10, it can be: the fourth shaft 37 is rotatably installed on the second support 10 through a bearing seat 11. When the fourth shaft 37 rotates relative to the second support 10, the drum can swing in the horizontal direction.

[0029] One end of the first shaft 32 close to the third shaft 19 is provided with a first clamping platform 21. A second baffle 13 is sleeved on the first shaft 32. The second baffle 13 abuts against the first clamping platform 21. The inner cylinder 24 is rotatably mounted on the first shaft 32 on the side of the second baffle 13 away from the third shaft 19 through a bushing 25 or a bearing (in this embodiment, through the bushing 25). One end of the inner cylinder 24 away from the second baffle 13 is provided with the first radial flange 27. The friction plate 28 is slidably sleeved on the first shaft 32 through a first slider and a first chute. The first baffle 8 is arranged on the first shaft 32. The second spring 34 is sleeved on the first shaft 32 (a side boss is provided on the side of the first baffle 8 close to the friction plate 28. The side boss is arranged around the first shaft 32. The second spring 34 is sleeved on the side boss. Two ends of the second spring 34 respectively abut against the first baffle 8 and the friction plate 28. As described above, since the side boss is arranged around the first shaft 32, therefore, the second spring 34 being sleeved on the side boss is also sleeved on the first shaft 32). A second clamping platform 29 is arranged between the outer cylinder wall of the inner cylinder 24 and the first radial flange 27. A cylinder gasket 22 is slidably sleeved on the outer cylinder wall of the inner cylinder 24 at one end away from the first radial flange 27 through a second slider and a second chute. The inner ring 33 of the one-way overrunning clutch abuts between the cylinder gasket 22 and the second clamping platform 29. The inner ring 33 of the one-way overrunning clutch is connected to the outer cylinder wall of the inner cylinder 24 through a key. A thrust washer 20 is arranged between the cylinder gasket 22 and the second baffle 13. The thrust washer 20 is fixedly arranged on the second baffle 13 through a screw. The cylinder gasket 22 abuts against the thrust washer 20. The first baffle 8 and the second baffle 13 are fixedly connected through a first pin shaft 6. The first pin shaft 6 is located outside the outer cylinder 26. One end of the first pin shaft 6 is provided with a radially extending boss. The other end of the first pin shaft 6 sequentially passes through the second baffle 13 and the first baffle 8 and then is inserted and connected with a small stop pin 7. The small stop pin 7 can limit the axial movement of the first pin shaft 6.

[0030] One end of the outer cylinder 26 close to the second baffle 13 is provided with a second radial flange 23. An annular cover plate 35 is fixedly arranged at one end of the outer cylinder 26 away from the second baffle 13 through a screw. The outer ring 36 of the one-way overrunning clutch abuts between the annular cover plate 35 and the second radial flange 23. The outer ring 36 of the one-way overrunning clutch is connected to the inner cylinder wall of the outer cylinder 26 through a key.

[0031] The first baffle 8 is slidably sleeved on the first shaft 32 through the third slider and the third chute. A nut 9 is threadedly connected to one end of the first shaft 32 away from the third shaft 19. The nut 9 and the second spring 34 are respectively located on opposite sides of the first baffle 8, and the nut 9 abuts against the first baffle 8. A nut gasket 30 is provided between the nut 9 and the first baffle 8, and the nut 9 abuts against the first baffle 8 through the nut gasket 30. A positioning groove 38 is formed at one end of the nut 9 away from the first baffle 8. A positioning hole is formed on the first shaft 32. The positioning groove 38 and the positioning hole are arranged oppositely, and a stop pin 31 is inserted through the positioning groove 38 and the positioning hole to prevent the nut 9 from loosening.

[0032] As Figure 2 shown, since the inner ring 33 of the one-way overrunning clutch is connected to the outer cylindrical wall of the inner cylinder body 24 by a key, when the inner ring 33 rotates, the inner cylinder body 24 can rotate together with the inner ring 33. Similarly, since the outer ring 36 of the one-way overrunning clutch is connected to the inner cylindrical wall of the outer cylinder body 26 by a key, when the outer cylinder body 26 rotates, the outer ring 36 can rotate together with the outer cylinder body 26. Since the inner ring 33 of the one-way overrunning clutch abuts between the cylinder gasket 22 and the second clamping platform 29, after the drum is installed on the first shaft 32, under the action of the cylinder gasket 22 and the second clamping platform 29, the inner ring 33 is fixed on the inner cylinder body 24. Similarly, the outer ring 36 of the one-way overrunning clutch abuts between the annular cover plate 35 and the second radial flange 23. In this way, under the action of the annular cover plate 35 and the second radial flange 23, the outer ring 36 is fixed on the outer cylinder body 26.

[0033] When installing the drum, first install the second baffle 13 that fixes the thrust washer 20 on the first shaft 32, and make the side of the second baffle 13 opposite to the thrust washer 20 abut against the first clamping platform 21. Then install the inner cylinder body 24 of the drum on the first shaft 32. Next, sequentially install the friction plate 28, the second spring 34, the first baffle 8, the nut gasket 30 and the nut 9 on the first shaft 32. Tighten the nut 9 so that the nut 9 abuts against the first baffle 8 through the nut gasket 30 and pushes the first baffle 8 to move towards the second baffle 13, that is, the first baffle 8 slides along the first shaft 32 towards the second baffle 13 through the third slider and the third chute. During this process, the second spring 34 is compressed. Under the elastic force of the second spring 34, the friction plate 28 also slides along the first shaft 32 towards the second baffle 13 through the first slider and the first chute until it abuts against and adheres tightly to the first radial flange 27. Under the push of the friction plate 28, the inner cylinder body 24 also moves towards the second baffle 13 until the cylinder gasket 22 abuts against the thrust washer 20. Under the push of the cylinder gasket 22, the second baffle 13 is fixed between the first clamping platform 21 and the cylinder gasket 22. After the nut 9 is tightened to the required position, insert the stop pin 31 into the positioning hole of the first shaft 32 and the positioning groove 38 of the nut 9 to prevent the nut 9 from loosening. In order to prevent the second baffle 13 from rotating with the drum, fixedly connect the first baffle 8 and the second baffle 13 through the first pin shaft 6. Since the first baffle 8 is slidably sleeved on the first shaft 32 through the third slider and the third chute, the first baffle 8 can only slide along the first shaft 32 and cannot rotate around the first shaft 32. Therefore, after fixedly connecting the first baffle 8 and the second baffle 13 through the first pin shaft 6, the second baffle 13 will not rotate around the first shaft 32 either, that is, when the drum rotates around the first shaft 32, the second baffle 13 will not rotate around the first shaft 32 following the drum. It can be seen from this that after installing the second baffle 13, the drum, the friction plate 28 and the first baffle 8 on the first shaft 32, the second baffle 13, the friction plate 28 and the first baffle 8 are all fixed on the first shaft 32 and none of them will rotate around the first shaft 32.

[0034] As described above, when the outer cylinder body 26, the outer ring 36 and the inner ring 33 of the one-way overrunning clutch and the inner cylinder body 24 rotate forward together, since the cylinder gasket 22 is slidably sleeved on the outer cylinder wall of the inner cylinder body 24 through the second slider and the second chute, therefore, the cylinder gasket 22 can only slide axially along the inner cylinder body 24 and will not rotate relative to the inner cylinder body 24. So, the cylinder gasket 22 rotates forward together with the inner cylinder body 24, that is to say, at this time, relative rotation occurs between the cylinder gasket 22 and the thrust washer 20. On the contrary, when the outer cylinder body 26 and the outer ring 36 of the one-way overrunning clutch rotate backward together, the inner ring 33, the inner cylinder body 24 and the cylinder gasket 22 of the one-way overrunning clutch do not rotate.

[0035] As Figures 3 - 5As shown, a swing arm 1 is hinged to a first support 3 through a second pin shaft 2 arranged vertically. Since the second pin shaft 2 is arranged vertically, the swing arm 1 can swing in the horizontal direction. A steering wheel 4 is rotatably mounted on the swing arm 1 in the horizontal direction, that is, there are two support arms arranged oppositely on the swing arm 1, both of the two support arms are arranged in the horizontal direction, and the steering wheel 4 is rotatably mounted between the two support arms (through holes are provided on both of the two support arms, and two ends of the steering wheel 4 are respectively inserted into the two through holes, and a clearance fit is provided between the two ends of the steering wheel 4 and the through holes, so that the steering wheel 4 can rotate in the through holes). Two oppositely arranged ear plates 16 are fixedly provided on a third support 17, and a third pin shaft 15 is connected between the two ear plates 16. The lower end of the first spring 14 is sleeved on the third pin shaft 15. The second spring 34 is a disc spring, and the traction rope 5 is a steel wire rope.

[0036] When the goods swing, since both the swing arm 1 and the drum can swing in the horizontal direction, and the lower end of the first spring 14 is sleeved on the third pin shaft 15, the swing arm 1 and the drum can make appropriate horizontal swings to adapt to the swing of the goods. At the same time, the first spring 14 can also make an appropriate swing around the third pin shaft 15. Thus, when the goods move upward by pulling the traction rope 5 or the first spring 14 moves downward by pulling the traction rope 5, the traction rope 5 will not be blocked and runs smoothly.

[0037] As Figure 2 shown, two one-way overrunning clutches are provided, and the two one-way overrunning clutches are arranged side by side and abutted against each other. The inner ring 33 and the outer ring 36 of one of the one-way overrunning clutches are respectively abutted against the second clamping table 29 and the annular cover plate 35, and the inner ring 33 and the outer ring 36 of the other one-way overrunning clutch are respectively abutted against the cylinder gasket 22 and the second radial flange 23.

[0038] When the present invention is in use, the first support 3, the second support 10 and the third support 17 are fixed on a vertical wall or other vertical structures. The upper end of the towing rope 5 is connected to the goods. Usually, the towing rope 5 is in a relaxed state. Under earthquake conditions, the goods swing away from the first support 3. As a result, the upper end of the towing rope 5 driven by the goods is stretched, making the towing rope 5 taut. As the goods continue to swing, the towing rope 5 drives the drum to rotate forward (i.e., the outer cylinder 26, the outer ring 36 and the inner ring 33 of the one-way overrunning clutch, and the inner cylinder 24 rotate forward together). Then, friction is generated between the drum and the friction plate 28 (i.e., friction is generated between the first radial flange 27 of the inner cylinder 24 and the friction plate 28), consuming the swinging energy and playing a damping role. In addition, when the towing rope 5 is tightened upward and drives the drum to rotate forward, the lower end of the towing rope 5 also pulls the first spring 14 upward, making the first spring 14 longer, which can also generate a damping effect. When the goods swing in the reverse direction, that is, swing close to the first support 3, the first spring 14 returns to its original state and drives the drum to rotate in the reverse direction through the towing rope 5 (at this time, only the outer cylinder 26 and the outer ring 36 of the one-way overrunning clutch rotate in the reverse direction together) until the drum and the towing rope 5 return to the initial state. It can be seen that the present invention occupies a small lateral space, is convenient for layout, has a reset function, and can reduce the amplitude and time of the goods' swing, thereby protecting the goods from being damaged by the earthquake.

[0039] The present invention adopts the principle of dry friction energy dissipation. When the goods swing back and forth, the damper continuously generates frictional damping, reducing the swing amplitude of the goods and gradually stopping it, which can meet the requirement of reliable storage of the goods in a vibrating environment.

[0040] The beneficial effects of the present invention are as follows:

[0041] (1) Under earthquake action, reduce the swing amplitude of the goods in the lateral direction to a controllable range, protecting the goods from being damaged by vibration;

[0042] (2) Through the setting of the reset spring (i.e., the first spring 14), the damper can automatically return to the initial state without external force;

[0043] (3) The main structure of the damper is arranged vertically, occupying a small lateral space, which is beneficial to the lateral space layout of the system.

[0044] It should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "front", "rear", "left", "right", "middle", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, so it cannot be understood as a limitation of the present invention.

[0045] In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, the terms "connected" and "coupled" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0046] The above-described embodiments are merely descriptions of the preferred embodiments of the present invention and do not limit the scope of the present invention. Without departing from the spirit of the present invention, various modifications and improvements made by those of ordinary skill in the art to the technical solutions of the present invention shall fall within the protection scope determined by the claims of the present invention.

Claims

1. A friction type damper with a reset function, characterized in that: It includes a first support, a second support, and a third support arranged in sequence from top to bottom. A steering wheel is rotatably installed on the first support, a roller is rotatably installed on the second support, and a friction plate abutted against the roller is also installed on the second support. When the roller rotates, friction can be generated with the friction plate. The third support is connected to the lower end of a first spring, and the upper end of the first spring is connected to the lower end of a towing rope. The upper end of the towing rope is sequentially wound around the roller and the steering wheel and then connected to the goods. A crankshaft is provided on the second support. The roller includes an outer cylinder, a one-way overrunning clutch, and an inner cylinder. The inner cylinder is rotatably installed on the crankshaft. The outer cylinder wall of the inner cylinder is connected to the inner ring of the one-way overrunning clutch, and the outer ring of the one-way overrunning clutch is connected to the inner cylinder wall of the outer cylinder. The towing rope is wound around the outer cylinder wall of the outer cylinder. A first radial flange is provided at one end of the inner cylinder, a first baffle is provided on the crankshaft, the first baffle is arranged close to the first radial flange, and the friction plate is arranged between the first baffle and the first radial flange. The friction plate is slidably sleeved on the crankshaft through a first slider and a first chute, the friction plate abuts against the first radial flange, and a second spring is installed between the friction plate and the first baffle. The second spring is sleeved on the crankshaft. The crankshaft includes two horizontally arranged first shafts and a second shaft. The first shaft and the second shaft are fixedly connected by a third shaft. A vertically arranged fourth shaft is fixedly connected to the second shaft, and the fourth shaft is hinged to the second support. A first clamping platform is provided at one end of the first shaft close to the third shaft. A second baffle is sleeved on the first shaft, and the second baffle abuts against the first clamping platform. The inner cylinder is rotatably installed on the first shaft on the side of the second baffle away from the third shaft through a bushing or a bearing. The first radial flange is provided at the end of the inner cylinder away from the second baffle. The friction plate is slidably sleeved on the first shaft through a first slider and a first chute. The first baffle is provided on the first shaft, the second spring is sleeved on the first shaft. A second clamping platform is provided between the outer cylinder wall of the inner cylinder and the first radial flange. A cylinder pad is slidably sleeved on the outer cylinder wall at the end of the inner cylinder away from the first radial flange through a second slider and a second chute. The inner ring of the one-way overrunning clutch abuts between the cylinder pad and the second clamping platform. The inner ring of the one-way overrunning clutch is connected to the outer cylinder wall of the inner cylinder by a key. A thrust washer is provided between the cylinder pad and the second baffle, and the thrust washer is fixedly provided on the second baffle. The cylinder pad abuts against the thrust washer. The first baffle and the second baffle are fixedly connected by a first pin shaft, and the first pin shaft is located outside the outer cylinder.

2. The friction type damper with a reset function according to claim 1, characterized in that: A second radial flange is provided at one end of the outer cylinder close to the second baffle, and an annular cover plate is fixedly provided at the end of the outer cylinder away from the second baffle. The outer ring of the one-way overrunning clutch abuts between the annular cover plate and the second radial flange. The outer ring of the one-way overrunning clutch is connected to the inner cylinder wall of the outer cylinder by a key.

3. The friction type damper with a reset function according to claim 2, characterized in that: The first baffle is slidably sleeved on the first shaft through a third slider and a third chute. A nut is threadedly connected to one end of the first shaft away from the third shaft. The nut and the second spring are respectively located on opposite sides of the first baffle, and the nut abuts against the first baffle.

4. The friction damper with a reset function according to claim 3, characterized in that: A positioning groove is formed at one end of the nut away from the first baffle. A positioning hole is formed in the first shaft. The positioning groove and the positioning hole are arranged oppositely, and a stop pin is inserted through the positioning groove and the positioning hole.

5. The friction type damper with a reset function according to claim 4, characterized in that: A swing arm is hinged to the first support through a vertically arranged second pin shaft. The steering wheel is rotatably mounted on the swing arm in the horizontal direction.

6. The friction damper with a reset function according to claim 5, characterized in that: Two oppositely arranged ear plates are fixedly provided on the third support. A third pin shaft is connected between the two ear plates, and the lower end of the first spring is sleeved on the third pin shaft.

7. The friction type damper with a reset function according to claim 6, characterized in that: The second spring is a disc spring, and the towing rope is a steel wire rope.

8. The friction type damper with a reset function according to claim 7, characterized in that: Two one-way overrunning clutches are provided. The two one-way overrunning clutches are arranged side by side and abutted against each other. The inner ring and the outer ring of one one-way overrunning clutch respectively abut against the second clamping table and the annular cover plate, and the inner ring and the outer ring of the other one-way overrunning clutch respectively abut against the barrel gasket and the second radial flange.

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