Miniature double-fork-arm shock absorber

Abstract

The utility model discloses a miniature double-fork-arm shock absorber, relates to the technical field of shock absorption chassis, and solves the problems that a common shock absorber can only provide a basic supporting function, cannot adjust the moving range and is poor in adaptability to different terrains, so that the stability and the efficiency of the shock absorber in normal work are influenced, and the shock absorption efficiency is low. Comprising a main beam and tires connected through a damping cantilever structure, the damping cantilever structure comprises dampers and base plates, the base plates are arranged above the two ends of the main beam, the bottoms of the four corners of each base plate are fixedly connected with U-shaped supporting plates, and the outer sides of the bottom ends of the U-shaped supporting plates are fixedly connected with the adjacent side faces of the main beam; u-shaped plates are installed at the center positions of the four rectangular tires, lower arms are installed at the inner bottoms of the U-shaped plates, upper arms are installed at the inner tops of the U-shaped plates, the overall connecting length of the upper arms and the lower arms can be adjusted, and an operator can rapidly adjust the jumping range of the upper arms and the lower arms according to the actual situation of the ground; and the stability and the efficiency of the equipment can be kept under different terrains.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of damping chassis, concretely to a micro double-fork-arm shock absorber. BACKGROUND

[0002] The chassis shock absorber, also known as an automobile shock absorber, is actually a vibration damper in the automobile suspension system. It is an important component of the automobile and is usually installed in the suspension system to absorb and reduce the vibration and noise generated by road impact on the vehicle. The main function of the shock absorber is to rapidly attenuate the vibration of the vehicle frame and the vehicle body by establishing a liquid damping (or other material damping) between the spring and the vehicle body, thereby improving the stability of the vehicle in walking.

[0003] The general shock absorber can only provide basic support and damping functions and cannot adjust the range of movement, which affects its stability and efficiency in normal operation. INNOVATION CONTENT

[0004] The utility model aims at providing a micro double-fork-arm shock absorber that can quickly adjust the bounce range of the upper arm and the lower arm and ensure the stability and efficiency of the equipment under different terrains, which can solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a micro double-fork-arm shock absorber, comprising a main beam and tires connected through a damping suspension beam structure, the damping suspension beam structure comprising a shock absorber and a pad plate, the upper part of both ends of the main beam being provided with a pad plate, the bottom of each corner of the pad plate being fixedly connected with a U-shaped support plate, the outer side of the bottom end of the U-shaped support plate being fixedly connected with the adjacent side surface of the main beam, the center position of each of the four rectangularly arranged tires being provided with a U-shaped plate, the inner bottom of the U-shaped plate being provided with a lower arm, and the inner top of the U-shaped plate being provided with an upper arm, the one end of the lower arm and the upper arm close to the U-shaped plate being fixedly connected with an internal threaded pipe, the other two ends of the lower arm and the upper arm being installed in the U-shaped support plate, the other end of the internal threaded pipe being internally threadedly connected with a screw rod, the other end of the screw rod being fixedly connected with a steel ring, the steel ring being installed in the U-shaped plate, the screw rod being threadedly sleeved with a limiting nut, both sides of the pad plate being fixedly connected with two first clamping plates, the upper surface of the lower arm being fixedly connected with two second clamping plates, the tail end of the obliquely arranged shock absorber being rotatably connected with the second clamping plate through a pin shaft, and the top end being rotatably connected with the first clamping plate through a pin shaft.

[0006] Preferably, the two side walls of the main beam are provided with a suspension structure, the suspension structure comprising a cross beam and a U-shaped beam, the center position of the two side surfaces of the main beam being fixedly connected with a U-shaped beam, and the side wall of the position of both ends of the main beam being fixedly connected with a cross beam.

[0007] Preferably, the cross beam is fixedly connected with a reinforcing beam close to the side wall of the U-shaped beam, and the other end of the reinforcing beam is fixedly connected with the side wall of the main beam.

[0008] Preferably, the two ends of the U-shaped plate are fixedly connected with two third clamping plates, the two third clamping plates are rotatably connected with a ball gasket through a pin shaft, and the outer surface of the ball gasket is sleeved with a ball bushing, and the ball bushing is sleeved in the steel ring.

[0009] Preferably, the two ends of the U-shaped plate are fixedly connected with two third clamping plates, the two third clamping plates are rotatably connected with a ball gasket through a pin shaft, and the outer surface of the ball gasket is sleeved with a ball bushing, and the ball bushing is sleeved in the steel ring.

[0010] Preferably, the two ends of the U-shaped plate are fixedly connected with two third clamping plates, the two third clamping plates are rotatably connected with a ball gasket through a pin shaft, and the outer surface of the ball gasket is sleeved with a ball bushing, and the ball bushing is sleeved in the steel ring.

[0011] Compared with the prior art, the beneficial effects of the utility model are that the overall connecting length of the upper arm and the lower arm can be adjusted, an operator can quickly adjust the jumping range of the upper arm and the lower arm according to the actual situation of the ground, and the equipment can maintain stability and efficiency under different terrains; most small chassis with a preparation mass of less than 350kg, including patrol robots, service robots, small automatic sweeping vehicle chassis, automatic vending vehicle chassis and express vehicle chassis, can be applied, the structure is simple, the assembly operation is simple, the cost is low, the maintenance and replacement are convenient, and the application range is wide. BRIEF DESCRIPTION OF DRAWINGS

[0012] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0013] Figure 2 It is a schematic diagram of the overall structure of the utility model from another angle;

[0014] Figure 3 It is a schematic diagram of the overall structure of the utility model from another angle;

[0015] Figure 4 It is a schematic diagram of the overall structure of the utility model from another angle;

[0016] Figure 5 It is a schematic diagram of the overall structure of the utility model from another angle;

[0017] Figure 6 It is a schematic diagram of the overall structure of the utility model from another angle;

[0018] Figure 7 It is a schematic diagram of the overall structure of the utility model from another angle;

[0019] Figure 8 It is a three-dimensional enlarged structural schematic view of the tire and the U-shaped plate in the utility model.

[0020] In the figure: 1, main beam; 2, suspension structure; 201, crossbeam; 202, reinforcing beam; 203, U-shaped beam; 3, shock-absorbing suspension beam structure; 301, shock absorber; 302, lower arm; 303, upper arm; 304, backing plate; 305, U-shaped support plate; 306, first clamping plate; 307, ball bushing; 308, steel ring; 309, screw rod; 3010, limiting nut; 3011, internally threaded pipe; 3012, sleeve pipe; 3013, rubber bushing; 3014, second clamping plate; 3015, cross plate; 3016, third clamping plate; 3017, ball gasket; 3018, U-shaped plate; 4, tire; 5, anti-tilting structure; 501, L-shaped plate; 502, rubber sleeve; 503, first inserting rod; 504, compression nut; 505, threaded rod; 506, elastic rod; 507, second inserting rod; 508, conical sleeve. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all the other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0022] Please refer to Figure 1 , Figure 2 Figure 3 , Figure 5 and Figure 6, the micro double fork arm shock absorber shown in the drawing, including the main beam 1 and the tire 4 connected through the shock suspension beam structure 3, the shock suspension beam structure 3 including the shock absorber 301 and the pad plate 304, the pad plate 304 is arranged above both ends of the main beam 1, the bottom of the four corners of the pad plate 304 is fixedly connected with the U-shaped support plate 305, the outer side of the bottom end of the U-shaped support plate 305 is fixedly connected with the adjacent side of the main beam 1, the center position of the four rectangularly arranged tires 4 is installed with the U-shaped plate 3018, the inner bottom of the U-shaped plate 3018 is installed with the lower arm 302, and the inner top is installed with the upper arm 303; the lower arm 302 and the upper arm 303 are fixedly connected with the internally threaded pipe 3011 at one end close to the U-shaped plate 3018, the other two ends of the lower arm 302 and the upper arm 303 are installed inside the U-shaped support plate 305, the other end of the internally threaded pipe 3011 is internally threadedly connected with the screw rod 309, the other end of the screw rod 309 is fixedly connected with the steel ring 308, the steel ring 308 is installed inside the U-shaped plate 3018, and the screw rod 309 is threadedly sleeved with the limiting nut 3010; both sides of the pad plate 304 are fixedly connected with two first clamping plates 306, the upper surface of the lower arm 302 is fixedly connected with two second clamping plates 3014, and the tail end of the obliquely arranged shock absorber 301 is rotatably connected with the second clamping plate 3014 through a pin shaft, and the top end is rotatably connected with the first clamping plate 306 through a pin shaft.

[0023] It is worth noting that after disassembling the upper arm 303 and the lower arm 302 located at one end of the U-shaped plate 3018, the screw rod 309 can be rotated and screwed using an auxiliary wrench, so that the screw rod 309 is removed from the internally threaded pipe 3011, which can adjust the overall connection length of the upper arm 303 and the lower arm 302. After adjustment, rotate the limiting nut 3010 to move it in the direction of the internally threaded pipe 3011 and press it tightly. It should be particularly noted that before rotating the limiting nut 3010, the screw rod 309 with the adjusted length must be fixed using a movable handle to prevent it from rotating simultaneously, which may cause the adjusted length to change, thereby affecting normal adjustment operations. After adjustment is completed, the upper arm 303 and the lower arm 302 are reassembled to the position of the U-shaped plate 3018, and the bounce range of the lower arm 302 and the upper arm 303 can be adjusted by rotating the limiting nut 3010, thereby adapting to different terrains for bounce range adjustment.

[0024] In actual application, this adjustment mechanism provides great flexibility for the equipment. For example, when performing outdoor operations, the unevenness of the ground requires the equipment to have certain adaptability. Through the above adjustment process, the operator can quickly adjust the bounce range of the upper arm 303 and the lower arm 302 according to the actual situation of the ground, ensuring that the equipment can maintain stability and efficiency under different terrains.

[0025] Please refer to Figure 2 , Figure 3 and Figure 4The main beam 1 is provided with a suspension structure 2 on both sides, the suspension structure 2 comprises a cross beam 201 and a U-shaped beam 203, the U-shaped beam 203 is fixedly connected to the center of the side surface of the main beam 1, and the cross beam 201 is fixedly connected to the side surface of the main beam 1 at both ends, and the matching components can be installed through the U-shaped beam 203 and the cross beam 201.

[0026] Referring to Figure 2 and Figure 5 , the cross beam 201 is fixedly connected with the reinforcing beam 202 near the side wall of the U-shaped beam 203, the other end of the reinforcing beam 202 is fixedly connected with the side wall of the main beam 1, the reinforcing beam 202 strengthens the support function of the cross beam 201 of the U-shaped beam 203, and the anti-collision ability of the cross beam 201 is enhanced.

[0027] Referring to Figure 5 , Figure 6 and Figure 8 , the two third clamping plates 3016 are fixedly connected to the both ends of the U-shaped plate 3018, the ball gasket 3017 is rotatably connected to the two third clamping plates 3016 through a pin shaft, the ball bushing 307 is sleeved on the outer surface of the ball gasket 3017, and the ball bushing 307 is sleeved in the steel ring 308. It is worth noting that the device not only depends on the shock absorber 301 to realize the overall damping effect, but also through the configuration of the ball bushing 307 and the ball gasket 3017, ensures that the tire 4 connection part can realize the damping effect in any direction.

[0028] Referring to Figure 3 , Figure 5 and Figure 6 , the lower arm 302 and the upper arm 303 are provided with an integrally formed sleeve 3012 at both ends, the rubber bushing 3013 is sleeved in the sleeve 3012, and the rubber bushing 3013 is rotatably connected to the inside of the U-shaped support plate 305 through a pin shaft. It is worth noting that the lower arm 302 and the upper arm 303 at both ends can buffer the shaking of the connection through the rubber bushing 3013, reduce the possibility of wear and tear of the pin shaft connection, and ensure the service life.

[0029] Referring to Figure 2The main girder 1 is provided with four anti-tilting structures 5 arranged in a rectangular manner, each anti-tilting structure 5 comprising an L-shaped plate 501 and a threaded rod 505, one end of the threaded rod 505 being fixedly connected to an elastic rod 506, and the other end being threadedly connected to a conical sleeve 508, which connection not only facilitates installation and adjustment, but also provides a certain buffering and shock-absorbing effect during the transfer of the chassis, thereby reducing the possibility of overturning, the other end of the conical sleeve 508 being connected to a first insertion rod 503 arranged vertically, the other end of the elastic rod 506 being fixedly connected to a second insertion rod 507, the outer surfaces of the first insertion rod 503 and the second insertion rod 507 being provided with rubber sleeves 502, the outer side wall of the threaded rod 505 being threadedly provided with a compression nut 504, the other end of the first insertion rod 503 being provided with a horizontal plate 3015, the horizontal plate 3015 being fixedly connected to the center of a U-shaped plate 3018, the other end of the second insertion rod 507 being provided with the L-shaped plate 501, and the L-shaped plate 501 being arranged on the top of the main girder 1.

[0030] It is worth noting that the threaded rod 505, the elastic rod 506, and the conical sleeve 508 are connected to the horizontal plate 3015 of the U-shaped plate 3018, so that the U-shaped plate 3018 on the tire 4 is connected to the main girder 1 through the anti-tilting structure 5, thereby reducing the possibility of overturning during the turning of the entire chassis and ensuring the stability during movement, and the design of the threaded rod 505, the elastic rod 506, and the conical sleeve 508 makes the connection more flexible and stable, in addition, the outer surfaces of the first insertion rod 503 and the second insertion rod 507 are provided with rubber sleeves 502, which not only increases the friction and improves the stability of the connection, but also reduces the wear and noise between the components.

[0031] Finally, the U-shaped plate 3018 is connected to the first insertion rod 503 through the horizontal plate 3015, and the second insertion rod 507 is connected to the main girder 1 through the L-shaped plate 501, forming a stable triangular structure, which is more stable in mechanics and can more effectively prevent the chassis from overturning during the transfer process.

[0032] It should be noted that, in this document, relational terms such as first and second and the like can be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus.

[0033] Although the embodiments of the present application have been shown and described, it is to be understood that various changes-modifications-replacements and variations can be made to these embodiments without departing from the principles and spirit of the present application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A micro double wishbone damper comprising a main beam (1) and a tire (4) connected by a damper suspension beam structure (3), characterized in that: The damping suspension beam structure (3) comprises dampers (301) and backing plates (304), the backing plates (304) are arranged above both ends of the main beam (1), the bottoms of the four edges and corners of the backing plates (304) are fixedly connected with U-shaped support plates (305), the outer sides of the bottom ends of the U-shaped support plates (305) are fixedly connected with the adjacent side faces of the main beam (1), the center positions of four tires (4) arranged in a rectangular shape are all provided with U-shaped plates (3018), the inner bottoms of the U-shaped plates (3018) are provided with lower arms (302), and the inner tops of the U-shaped plates (3018) are provided with upper arms (303), the one ends of the lower arms (302) and the upper arms (303) close to the U-shaped plates (3018) are all fixedly connected with internally threaded pipes (3011), the other two ends of the lower arms (302) and the upper arms (303) are all arranged in the U-shaped support plates (305), the other end of the internally threaded pipe (3011) is internally threadedly connected with a screw rod (309), the other end of the screw rod (309) is fixedly connected with a steel ring (308), the steel ring (308) is arranged in the U-shaped plate (3018), the screw rod (309) is threadedly sleeved with a limiting nut (3010), the two side walls of the backing plate (304) are both fixedly connected with two first clamping plates (306), the upper surface of the lower arm (302) is fixedly connected with two second clamping plates (3014), the tail ends of the obliquely arranged dampers (301) are rotatably connected with the second clamping plates (3014) through pin shafts, and the top ends of the dampers (301) are rotatably connected with the first clamping plates (306) through pin shafts.

2. A micro double wishbone damper according to claim 1, characterized in that: The two side walls of the main beam (1) are both provided with suspension structures (2), the suspension structure (2) comprises a cross beam (201) and a U-shaped beam (203), the center positions of the two side faces of the main beam (1) are fixedly connected with the U-shaped beams (203), and the side walls at the two end positions of the main beam (1) are both fixedly connected with the cross beams (201).

3. A micro twin-bilinear damper according to claim 2, wherein: The side wall close to the U-shaped beam (203) of the cross beam (201) is fixedly connected with a reinforcing beam (202), and the other end of the reinforcing beam (202) is fixedly connected with the side wall of the main beam (1).

4. The micro double wishbone damper of claim 1, wherein: The two ends of the U-shaped plate (3018) are both fixedly connected with two third clamping plates (3016), the two third clamping plates (3016) are rotatably connected with ball gaskets (3017) through pin shafts, the outer surface of the ball gasket (3017) is sleeved with a ball bushing (307), and the ball bushing (307) is sleeved in the steel ring (308).

5. The micro double wishbone damper of claim 1, wherein: The two ends of the lower arm (302) and the upper arm (303) are both provided with integrally formed sleeve pipes (3012), the sleeve pipes (3012) are internally sleeved with rubber bushings (3013), and the rubber bushings (3013) are rotatably connected with the interiors of the U-shaped support plates (305) through pin shafts.

6. A micro double wishbone damper according to claim 1, wherein: The main beam (1) is provided with four rectangularly arranged anti-tilting structures (5), each of which comprises an L-shaped plate (501) and a threaded rod (505), one end of the threaded rod (505) is fixedly connected with an elastic rod (506), the other end of the threaded rod (505) is threadedly connected with a conical sleeve (508), the other end of the conical sleeve (508) is connected with a vertically arranged first inserting rod (503), the other end of the elastic rod (506) is fixedly connected with a second inserting rod (507), the outer surfaces of the first inserting rod (503) and the second inserting rod (507) are both sleeved with rubber sleeves (502), the outer side wall of the threaded rod (505) is threadedly sleeved with a compression nut (504), the other end of the first inserting rod (503) is provided with a horizontal plate (3015), the horizontal plate (3015) is fixedly connected to the center position of a U-shaped plate (3018), the other end of the second inserting rod (507) is provided with the L-shaped plate (501), and the L-shaped plate (501) is arranged on the top of the main beam (1).

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