A vibration damping device of a double torsion spring-link composite mechanism

Abstract

The application discloses a damping device with a double-torsion-spring-link composite mechanism, which comprises a ball head clamp, a double-head spherical hinge base, a double-torsion-spring-link composite elastic mechanism and a fixed support, the left clamp end of the ball head clamp is clamped on the shaft of a moving object, for example, the handle of a vehicle, the right ball head end of the ball head clamp is clamped and hinged in the spherical groove at the left end of the double-head spherical hinge base, the left end of the double-torsion-spring-link composite elastic mechanism is clamped and hinged in the spherical groove at the right end of the double-head spherical hinge base, and the left side of the fixed support is fixedly connected to the right side of the double-torsion-spring-link composite elastic mechanism. The damping device has no transmission system interference and is flexible in operation, can realize various motion rules and trajectories, has low pair connection with surface-to-surface contact, has strong bearing capacity, realizes bidirectional buffering, significantly improves the damping stroke, and reduces the impact force and vibration on some intelligent terminal equipment with complex components, such as high-speed motors, high-precision sensors and optical photography cameras.

Description

Technical Field

[0001] This invention belongs to the field of mechanical structure vibration reduction technology, specifically relating to a vibration reduction device of a double torsion spring-linkage composite mechanism. Background Technology

[0002] In the field of engineering technology, especially in the field of intelligent mining, onboard intelligent terminals are essential for complex mobile machinery such as excavators and loaders. These special vehicles, in conjunction with remote digital construction guidance systems, take intelligent and automated mining equipment as the core, high-speed, high-capacity, two-way integrated digital communication networks as the carrier, and intelligent design and production management software systems as the platform. Through real-time, dynamic, and intelligent monitoring and control of mining production objects and processes, the safety, efficiency, and economic benefits of mining can be maximized.

[0003] It has been proven that the working conditions at mining sites are complex and ever-changing. The intelligent vehicle-mounted display terminal must not only capture real-time images of the road conditions in front and behind the host computer, but also monitor the operation of the vehicle equipment itself. The intelligent terminal integrates a wireless receiver, controller, high-speed camera and high-precision ore metering system. Effective vibration reduction is crucial for the normal operation of the vehicle-mounted intelligent terminal equipment.

[0004] Motorcycles and electric two-wheelers and three-wheelers provide people with a unique and free way of travel. Mobile phones or PDAs are essential tools for people in the information age. When riding, these devices often need to be fixed to the handlebars of the vehicle with brackets to meet people's basic needs for real-time communication, satellite navigation, and photography and video recording. However, the vibration from prolonged riding can damage the delicate internal components of the mobile phone. In particular, the damage is more severe on more complex parts such as high-speed motors, high-precision sensors, and optical photography and video recording on bumpy roads.

[0005] Existing vehicle vibration dampers on the market are generally made of neoprene rubber and other materials in a conical shape, and can be vulcanized together with metal parts. These types of vibration dampers have a good vibration isolation effect in the axial, lateral and rotational directions, with large damping, and are especially good at isolating high-frequency vibrations. However, rubber vibration dampers have a slow response speed and a small damping stroke. When vehicles drive on rough roads, the undulations of the road will inevitably cause low-frequency vibrations with large amplitudes. Rubber vibration dampers cannot effectively reduce the vibrations caused by driving on rough roads, and there is an urgent need for innovative vibration damping structure designs. Summary of the Invention

[0006] The purpose of this invention is to provide a vibration damping device with a double torsion spring-linkage composite mechanism that has a better vibration damping effect, effectively reducing the large amplitude low-frequency vibrations applied to the vehicle-mounted intelligent terminal during driving on rough roads, and protecting the precision components of the equipment from damage.

[0007] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: a vibration damping device of a double torsion spring-linkage composite mechanism, comprising a ball head clamp 16, a double-headed spherical hinge seat 7, a double torsion spring-linkage composite elastic mechanism, and a fixed support 18. The left clamp end of the ball head clamp 16 is clamped on the handlebar 17, and the right ball head end of the ball head clamp 16 is clamped and hinged in the spherical groove at the left end of the double-headed spherical hinge seat 7. The left end of the double torsion spring-linkage composite elastic mechanism is clamped and hinged in the spherical groove at the right end of the double-headed spherical hinge seat 7. The left side of the fixed support 18 is fixedly connected to the right side of the double torsion spring-linkage composite elastic mechanism.

[0008] The double torsion spring-link composite elastic mechanism includes a left link 1, an upper torsion spring 2, a lower torsion spring 3, an upper link 4, a lower link 5, and a right link 6. The left link 1 has a ball-head hinge pin 101 fixedly mounted on the middle left side, which is clamped and hinged in the spherical groove at the right end of the double-headed spherical hinge seat 7. The upper end of the left link 1 is hinged to the left end of the upper link 4 through a first pin 8. The upper torsion spring 2 is mounted on the first pin 8. The lower end of the left link 1 is hinged to the left end of the lower link 5 through a second pin 9. The lower torsion spring 3 is mounted on the second pin 9. The right end of the upper link 4 is hinged to the upper end of the right link 6 through a third pin 10. The right end of the lower link 5 is hinged to the lower end of the right link 6 through a fourth pin 11.

[0009] The left connecting rod 1 has a first groove 104 and a second groove 105 that are both open to the left and right at the top and bottom, respectively. The left connecting rod 1 has a first pin hole 102 on the front and rear sides of the first groove 104, respectively. The upper connecting rod 4 has a third groove 403 and a fourth groove 404 that are both open to the top and bottom, respectively at the right and left ends, respectively. The upper connecting rod 4 has a second pin hole 402 on the front and rear sides of the fourth groove 404, respectively. The first pin 8 is inserted into the first pin hole 102 and the second pin hole 402 on the front and rear sides, respectively. The left connecting rod 1 has a first positioning hole 106 at the bottom of the first groove 104 facing downwards. The upper connecting rod 4 has a second positioning hole 405 at the bottom of the fourth groove 404 facing left. The first torsion arm 13 of the upper torsion spring 2 is inserted into the first positioning hole 106, and the second torsion arm 12 of the upper torsion spring 2 is inserted into the second positioning hole 405.

[0010] The left connecting rod 1 has a third pin hole 103 on the front and rear sides of the second groove 105. The left and right ends of the lower connecting rod 5 have a fifth groove 503 and a sixth groove 504 that are both open from top to bottom. The lower connecting rod 5 has a fourth pin hole 501 on the front and rear sides of the fifth groove 503. The two ends of the second pin shaft 9 are inserted into the third pin hole 103 and the fourth pin hole 501 on the front and rear sides. The left connecting rod 1 has a third positioning hole 107 on the bottom of the second groove 105 facing upwards. The lower connecting rod 5 has a fourth positioning hole 505 on the bottom of the fifth groove 503 facing left. The third torsion arm 14 of the lower torsion spring 3 is inserted into the third positioning hole 107, and the fourth torsion arm 15 of the lower torsion spring 3 is inserted into the fourth positioning hole 505.

[0011] The top and bottom of the right connecting rod 6 are respectively provided with a seventh groove 603 and an eighth groove 604 that are both open to the left and right. The right connecting rod 6 has a fifth pin hole 601 on the front and rear sides of the seventh groove 603, and a sixth pin hole 602 on the front and rear sides of the eighth groove 604. The upper connecting rod 4 has a seventh pin hole 401 on the front and rear sides of the third groove 403, and the lower connecting rod 4 has an eighth pin hole 502 on the front and rear sides of the sixth groove 504. The two ends of the third pin 10 are inserted into the fifth pin hole 601 and the seventh pin hole 401 on the front and rear sides, and the two ends of the fourth pin 11 are inserted into the sixth pin hole 602 and the eighth pin hole 502 on the front and rear sides.

[0012] The right connecting rod 6 has several threaded holes 605 on its right side. The fixed support 18 is fixedly connected to the right connecting rod 6 by screws in the threaded holes 605 through threaded fastening.

[0013] By adopting the above technical solution, compared with the prior art, the present invention has the following technical effects: Current torsion spring technology generally only provides unidirectional cushioning, allowing moving parts with torsion springs to reset quickly, but also inflicting a certain amount of impact force. However, the torsion generated by the upper and lower torsion springs in this invention maintains stability and balance in the four-bar linkage formed by the sequential hinge of the left, upper, lower, and right connecting rods.

[0014] The double torsion spring-link composite elastic mechanism of this invention is fixed to the handlebars of a vehicle via a double-headed spherical hinge and a ball-head clamp. The mechanism employs a four-bar linkage formed by sequentially hinged left, upper, lower, and right links. Double torsion springs are installed between the upper and lower ends of the left link and the upper and lower links, respectively. A fixed support is threadedly connected to the right link. The smart terminal is mounted on the fixed support. The upper and lower torsion springs provide resistance to the rotation of the upper and lower links, reducing kinetic energy and allowing the upper and lower links to achieve smooth mechanical movement during rotation. This achieves bidirectional buffering, significantly improving the damping stroke, reducing impact and vibration on the smart terminal equipment, and enhancing the equipment's service life and operational comfort. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 yes Figure 1 Sectional view of AA; Figure 3 yes Figure 1 Side view of the middle left link; Figure 4 yes Figure 1 Top view of the upper and middle connecting rod; Figure 5 yes Figure 1 Top view of the middle and lower connecting rod; Figure 6 yes Figure 1 Right view of the middle right link; Figure 7 This is a schematic diagram of a four-bar linkage and torsion spring damping when the vehicle is stationary; Figure 8 This is a schematic diagram of a four-bar linkage and torsion spring damping when a vehicle is traveling on a raised road surface; Figure 9 This is a schematic diagram of a four-bar linkage and torsion spring damping when a vehicle is traveling on a bumpy road. Detailed Implementation

[0016] The embodiments of the present invention will be described in further detail below with reference to the accompanying drawings and examples.

[0017] like Figures 1-6 As shown, a vibration damping device of a double torsion spring-linkage composite mechanism of the present invention includes a ball head clamp 16, a double-headed spherical hinge seat 7, a double torsion spring-linkage composite elastic mechanism, and a fixed support 18. The left clamp end of the ball head clamp 16 is clamped on the handlebar 17. The double-headed spherical hinge seat 7 includes an upper clamp plate and a lower clamp plate. The upper clamp plate and the lower clamp plate are connected in the middle by a bolt assembly. A left spherical groove is formed between the left ends of the upper clamp plate and the lower clamp plate, and a right spherical groove is formed between the right ends of the upper clamp plate and the lower clamp plate. The ball head end on the right side of the ball head clamp 16 is fitted and hinged in the left spherical groove. A ball head hinge pin 101 fixedly disposed in the middle of the left side of the left link 1 is fitted and hinged in the right spherical groove. The left side of the fixed support 18 is fixedly connected to the right side of the double torsion spring-linkage composite elastic mechanism.

[0018] The double torsion spring-link composite elastic mechanism includes a left link 1, an upper torsion spring 2, a lower torsion spring 3, an upper link 4, a lower link 5, and a right link 6. The left link 1 has a ball-head hinge pin 101 fixedly mounted on the middle left side, which is clamped and hinged in the spherical groove at the right end of the double-headed spherical hinge seat 7. The upper end of the left link 1 is hinged to the left end of the upper link 4 through a first pin 8. The upper torsion spring 2 is mounted on the first pin 8. The lower end of the left link 1 is hinged to the left end of the lower link 5 through a second pin 9. The lower torsion spring 3 is mounted on the second pin 9. The right end of the upper link 4 is hinged to the upper end of the right link 6 through a third pin 10. The right end of the lower link 5 is hinged to the lower end of the right link 6 through a fourth pin 11.

[0019] The left connecting rod 1 has a first groove 104 and a second groove 105 that are both open to the left and right at the top and bottom, respectively. The left connecting rod 1 has a first pin hole 102 on the front and rear sides of the first groove 104, respectively. The upper connecting rod 4 has a third groove 403 and a fourth groove 404 that are both open to the top and bottom, respectively at the right and left ends, respectively. The upper connecting rod 4 has a second pin hole 402 on the front and rear sides of the fourth groove 404, respectively. The first pin 8 is inserted into the first pin hole 102 and the second pin hole 402 on the front and rear sides, respectively. The left connecting rod 1 has a first positioning hole 106 at the bottom of the first groove 104 facing downwards. The upper connecting rod 4 has a second positioning hole 405 at the bottom of the fourth groove 404 facing left. The first torsion arm 13 of the upper torsion spring 2 is inserted into the first positioning hole 106, and the second torsion arm 12 of the upper torsion spring 2 is inserted into the second positioning hole 405.

[0020] The left connecting rod 1 has a third pin hole 103 on the front and rear sides of the second groove 105. The left and right ends of the lower connecting rod 5 have a fifth groove 503 and a sixth groove 504 that are both open from top to bottom. The lower connecting rod 5 has a fourth pin hole 501 on the front and rear sides of the fifth groove 503. The two ends of the second pin shaft 9 are inserted into the third pin hole 103 and the fourth pin hole 501 on the front and rear sides. The left connecting rod 1 has a third positioning hole 107 on the bottom of the second groove 105 facing upwards. The lower connecting rod 5 has a fourth positioning hole 505 on the bottom of the fifth groove 503 facing left. The third torsion arm 14 of the lower torsion spring 3 is inserted into the third positioning hole 107, and the fourth torsion arm 15 of the lower torsion spring 3 is inserted into the fourth positioning hole 505.

[0021] The top and bottom of the right connecting rod 6 are respectively provided with a seventh groove 603 and an eighth groove 604 that are both open to the left and right. The right connecting rod 6 has a fifth pin hole 601 on the front and rear sides of the seventh groove 603, and a sixth pin hole 602 on the front and rear sides of the eighth groove 604. The upper connecting rod 4 has a seventh pin hole 401 on the front and rear sides of the third groove 403, and the lower connecting rod 4 has an eighth pin hole 502 on the front and rear sides of the sixth groove 504. The two ends of the third pin 10 are inserted into the fifth pin hole 601 and the seventh pin hole 401 on the front and rear sides, and the two ends of the fourth pin 11 are inserted into the sixth pin hole 602 and the eighth pin hole 502 on the front and rear sides.

[0022] The right connecting rod 6 has several threaded holes 605 on its right side. The fixed support 18 is fixedly connected to the right connecting rod 6 by screws in the threaded holes 605 through threaded fastening.

[0023] When the vehicle is stationary, the included angle between the two torsion arms of the upper torsion spring 2 and the lower torsion spring 3 is both the initial angle of 90°. The double torsion spring-connecting rod composite elastic mechanism is in equilibrium and forms a rectangle. Figure 7 As shown.

[0024] When a vehicle travels on a rough road surface, such as Figure 8 As shown, the double torsion spring-link composite structure moves up and down with the vehicle. When encountering a raised road surface, the left link 1 of the double torsion spring-link composite structure moves upward. Under the action of inertia, the upper link 4 and the lower link 5 rotate clockwise relative to the left link 1, thereby compressing the first torsion arm 13 and the second torsion arm 12 of the upper torsion spring 2, reducing the angle between the first torsion arm 13 and the second torsion arm 12 to a minimum of about 20°. At the same time, it increases the angle between the third torsion arm 14 and the fourth torsion arm 15 of the lower torsion spring 3 to a maximum of about 160°.

[0025] When encountering a sunken road surface, such as Figure 9 As shown, in the double torsion spring-link composite structure, the left link 1 moves downward. Under the action of inertia, the upper link 4 and the lower link 5 rotate counterclockwise relative to the left link 1, thereby compressing the third torsion arm 14 and the fourth torsion arm 15 of the lower torsion spring 3, reducing the angle between the third torsion arm 14 and the fourth torsion arm 15 to a minimum of about 20°, while increasing the angle between the first torsion arm 13 and the second torsion arm 12 of the upper torsion spring 2 to a maximum of about 160°.

[0026] When the road surface returns to a smooth state or the area is left to stand still, the upper torsion spring 2 and the lower torsion spring 3 will pull the upper connecting rod 4 and the lower connecting rod 5 back. Figure 6 The initial equilibrium position is shown.

[0027] The above embodiments illustrate the basic principles and features of the present invention, but are merely preferred embodiments and are not limited to these embodiments. Those skilled in the art, inspired by this patent, can make many modifications and improvements without departing from the spirit and scope of the claims, all of which fall within the scope of protection of the present invention. Therefore, the scope of this patent and its protection should be determined by the appended claims.

Claims

1. A vibration damping device based on a double torsion spring-linkage composite mechanism, characterized in that: It includes a ball head clamp (16), a double-headed spherical hinge seat (7), a double torsion spring-connecting rod composite elastic mechanism and a fixed support (18). The left clamp end of the ball head clamp (16) is clamped on the handlebar (17), and the right ball head end of the ball head clamp (16) is clamped and hinged in the spherical groove at the left end of the double-headed spherical hinge seat (7). The left end of the double torsion spring-connecting rod composite elastic mechanism is clamped and hinged in the spherical groove at the right end of the double-headed spherical hinge seat (7). The left side of the fixed support (18) is fixedly connected to the right side of the double torsion spring-connecting rod composite elastic mechanism. The double torsion spring-link composite elastic mechanism includes a left link (1), an upper torsion spring (2), a lower torsion spring (3), an upper link (4), a lower link (5), and a right link (6). The left link (1) is fixedly provided with a ball head hinge pin (101) in the spherical groove of the right end of the double-headed spherical hinge seat (7) at the middle of the left side. The upper end of the left link (1) is hinged to the left end of the upper link (4) through the first pin (8). The upper torsion spring (2) is mounted on the first pin (8). The lower end of the left link (1) is hinged to the left end of the lower link (5) through the second pin (9). The lower torsion spring (3) is mounted on the second pin (9). The right end of the upper link (4) is hinged to the upper end of the right link (6) through the third pin (10). The right end of the lower link (5) is hinged to the lower end of the right link (6) through the fourth pin (11). The left connecting rod (1) has a first groove (104) and a second groove (105) that are both open to the left and right at the top and bottom respectively. The left connecting rod (1) has a first pin hole (102) on the front and rear sides of the first groove (104) respectively. The upper connecting rod (4) has a third groove (403) and a fourth groove (404) that are both open to the top and bottom respectively at the right and left ends respectively. The upper connecting rod (4) has a second pin hole (402) on the front and rear sides of the fourth groove (404) respectively. The first pin (8) The first pin hole (102) and the second pin hole (402) are inserted into the front and rear sides at both ends. The left connecting rod (1) has a first positioning hole (106) at the bottom of the first groove (104) and the upper connecting rod (4) has a second positioning hole (405) at the bottom of the fourth groove (404). The first torsion arm (13) of the upper torsion spring (2) is inserted into the first positioning hole (106) and the second torsion arm (12) of the upper torsion spring (2) is inserted into the second positioning hole (405).

2. The vibration damping device of the double torsion spring-linkage composite mechanism according to claim 1, characterized in that: The left connecting rod (1) has a third pin hole (103) on the front and rear sides of the second groove (105). The left and right ends of the lower connecting rod (5) have a fifth groove (503) and a sixth groove (504) that are both open from top to bottom. The lower connecting rod (5) has a fourth pin hole (501) on the front and rear sides of the fifth groove (503). The two ends of the second pin shaft (9) are inserted into the third pin hole (103) and the fourth pin hole (501) on the front and rear sides. The left connecting rod (1) has a third positioning hole (107) on the bottom of the second groove (105) facing upward. The lower connecting rod (5) has a fourth positioning hole (505) on the bottom of the fifth groove (503). The third torsion arm (14) of the lower torsion spring (3) is inserted into the third positioning hole (107), and the fourth torsion arm (15) of the lower torsion spring (3) is inserted into the fourth positioning hole (505).

3. The vibration damping device of the double torsion spring-linkage composite mechanism according to claim 2, characterized in that: The top and bottom of the right connecting rod (6) are respectively provided with a seventh groove (603) and an eighth groove (604) that are both open to the left and right. The right connecting rod (6) has a fifth pin hole (601) on the front and rear sides of the seventh groove (603) and a sixth pin hole (602) on the front and rear sides of the eighth groove (604). The upper connecting rod (4) has a seventh pin hole (401) on the front and rear sides of the third groove (403). The lower connecting rod (4) has an eighth pin hole (502) on the front and rear sides of the sixth groove (504). The two ends of the third pin (10) are inserted and assembled in the fifth pin hole (601) and the seventh pin hole (401) on the front and rear sides. The two ends of the fourth pin (11) are inserted and assembled in the sixth pin hole (602) and the eighth pin hole (502) on the front and rear sides.

4. A vibration damping device for a double torsion spring-linkage composite mechanism according to any one of claims 1-3, characterized in that: The right connecting rod (6) has several threaded holes (605) on its right side. The fixed support (18) is fixedly connected to the right connecting rod (6) by screws in the threaded holes (605) through threaded fastening.

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