Speed limiting and braking device of penetrating type shock absorber

Abstract

The utility model discloses a speed limiting and braking device of a penetration type shock absorber, and relates to the technical field of shock absorbers. The main body structure comprises a first sleeve, a second sleeve connected to the outer side of the first sleeve in a sleeving mode, a spring fixedly arranged in the second sleeve and the first sleeve, a hydraulic cylinder fixedly arranged on the inner wall of the second sleeve, a first piston installed in the hydraulic cylinder in a sliding mode and a piston rod located at one end of the piston. The speed limiting structure comprises a support, a second sealing ring embedded into the hydraulic cylinder, an adjusting rod inserted into the second sealing ring in a sliding mode and a second piston located at the lower end of the adjusting rod. The brake structure comprises a fixing plate, a stroke plate located on one side of the fixing plate, fixing teeth located at one end of the stroke plate, clamping teeth located at one end of the stroke plate and an electric push rod fixedly arranged at the upper end of the second sleeve. The speed limiting structure and the brake structure are arranged, so that the problems that the resistance cannot be adjusted when the piston moves, and braking cannot be carried out in time when shock absorption and buffering are not needed are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of shock absorbers, in particular to a speed limiting and braking device of a penetrating shock absorber. Background Art

[0002] A penetrating shock absorber is a device used to absorb or reduce impact and vibration, also known as a hydraulic shock absorber. It drives the piston to move linearly inside the hydraulic cylinder through a plug rod that penetrates the hydraulic cylinder. When subjected to external impact or vibration, the piston can move in a sealed environment. During the movement of the piston, the fluid is used to absorb and slow down the impact force, thereby eliminating vibration or impact. When used, the penetrating shock absorber can only perform its own shock absorption and buffering, but it cannot contact the shock absorption and buffering when not in use, nor can it adjust the shock absorption effect when the use environment is different.

[0003] A Chinese patent discloses a penetrating shock absorber device (authorization publication number CN102213291B). The patented technology involves the generator or diesel engine foot mounting bolts passing sequentially from top to bottom through the generator or diesel engine foot mounting hole, the main shock absorber, the generator set base mounting hole, and the auxiliary shock absorber center hole. The bolts are threadedly connected to the main shock absorber gland. The bolt ends are connected to the locking nut. The bolts, locking nut, and gasket do not contact the generator set base bracket mounting hole and the auxiliary shock absorber center hole. The auxiliary shock absorber is reversely installed under the base bracket by bolts, clamping the bracket together with the main shock absorber. The auxiliary shock absorber is fixed to the generator set base bracket by shock absorber fixing bolts. The diameter of the generator set base mounting hole is larger than the auxiliary shock absorber center hole. The main shock absorber is a composite shock absorber, and the auxiliary shock absorber is a shear shock absorber. The present invention has both excellent normal and tangential vibration isolation effects and extremely strong buffering and tangential impact resistance capabilities, ensuring the safety of mobile diesel generator sets during operation and movement.

[0004] While this patented technology provides cushioning and resistance to tangential impacts during use, it still has drawbacks. The resistance to movement of the piston, which applies the damping force through the elastic element of the penetrating shock absorber, cannot be adjusted. Furthermore, braking cannot be performed promptly when shock absorption is not required. This fails to meet the shock absorption requirements under different operating conditions. Furthermore, when rapid stopping or adjustment is required, reaction time is delayed, reducing safety in emergency situations. Therefore, those skilled in the art have provided a speed limiting and braking device for a penetrating shock absorber to address the issues raised in the aforementioned background technology. Utility Model Content

[0005] 1. Technical solution

[0006] In order to solve the above technical problems, the present invention is achieved through the following technical solutions:

[0007] The utility model is a speed limiting and braking device for a penetrating shock absorber, comprising:

[0008] The main structure includes sleeve 1, sleeve 2 sleeved on the outside of sleeve 1, a spring fixedly placed inside sleeve 2 and sleeve 1, a hydraulic cylinder fixedly placed on the inner wall of the upper end of sleeve 2 and located inside spring 1, piston 1 slidably installed inside the hydraulic cylinder, a plug rod located at one end of piston 1 and passing through the lower end of sleeve 2, and an oil hole opened inside piston 1;

[0009] The speed limiting structure includes a bracket located at the upper end of the second sleeve, a second sealing ring embedded in the hydraulic cylinder, an adjusting rod slidably inserted into the second sealing ring, and a second piston located at the lower end of the adjusting rod and located inside the upper end of the hydraulic cylinder;

[0010] as well as;

[0011] The brake structure includes a fixed plate fixed on the outer walls of both sides of the hydraulic cylinder, a travel plate located on one side of the fixed plate, fixed teeth evenly distributed at one end of the travel plate, latching teeth evenly distributed at one end of the travel plate, and an electric push rod fixed on the second upper end of the sleeve and connected to the travel plate at the telescopic end.

[0012] Furthermore, a sealing ring 1 is embedded in the lower end of the hydraulic cylinder, and the upper end of the plug rod is slidably inserted into the sealing ring 1;

[0013] Specifically, the plug rod is supported for sliding inside the hydraulic cylinder by the sealing ring, and the plug rod passes through the sealing ring during sliding so that the hydraulic oil inside the hydraulic cylinder is intercepted.

[0014] Furthermore, the oil holes are distributed in a ring array inside the piston, and the upper and lower openings of the oil holes are both provided with arc-shaped fillets;

[0015] Specifically, when the hydraulic oil in the hydraulic cylinder is squeezed through the oil hole inside the piston, the hydraulic oil flows through the internal spaces on the upper and lower sides of the hydraulic cylinder.

[0016] Furthermore, a torsion ring is provided at the upper end of the adjusting rod, and the adjusting rod and the bracket are connected by screw thread rotation;

[0017] Specifically, the torsion ring is convenient for applying a rotational force to the adjusting rod when the adjusting rod is rotated, and is fixed by engaging with the thread of the bracket when the adjusting rod is rotated through the thread.

[0018] Furthermore, two groups of symmetrically distributed support columns are provided on the upper end of the second sleeve, and a second mounting plate is provided on the upper end of the support columns;

[0019] Specifically, the support column platform raises the height of the second mounting plate so that the adjustment rod obtains an effective adjustment stroke and is installed through the second mounting plate.

[0020] Furthermore, the upper end of the second mounting plate is provided with two sets of symmetrically distributed guide rails, the upper end of the travel plate is provided with a slider slidably sleeved on the outer wall of the guide rail, the lower end of the plug rod is provided with a first mounting plate, and both the first mounting plate and the second mounting plate are provided with mounting holes;

[0021] Specifically, the travel plate slides on the guide rail through the slider to guide the travel plate. The first mounting plate is used to install the structural member. After the first mounting plate and the second mounting plate are installed, the fixing member is plugged in through the mounting hole.

[0022] 2. Beneficial effects

[0023] Compared with the prior art, the advantages of the present invention are:

[0024] In the utility model, the spring contracts under force and moves inside the hydraulic cylinder through piston 1. When the hydraulic oil passes through piston 1, it exerts resistance to the impact force of the piston. The damping force is exerted on the spring during its expansion and contraction process, thereby achieving effective buffering and shock absorption.

[0025] At the same time, by adjusting the position of piston 2 inside the hydraulic cylinder, the pressure inside the hydraulic cylinder is adjusted. When the pressure is high, the resistance of piston 1 is large, and when the pressure is low, the resistance of piston 1 is small, thereby adjusting the damping effect and playing a role of speed limit adjustment. The electric push rod drives the stroke plate to move relatively, and when the locking gear drives the fixed gear to engage, the sleeve 1 that moves synchronously with the plug rod is limited and locked, so that the penetrating shock absorber releases the shock absorbing and buffering effect, adapts to use in different environments, is flexible to use, and improves safety when rapid adjustment is required.

[0026] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0028] Figure 1 This is a schematic diagram of the main three-dimensional structure of the utility model;

[0029] Figure 2 This is a schematic diagram of the main sectional three-dimensional structure of the utility model;

[0030] Figure 3 This is a schematic side view of the three-dimensional structure of the adjustment plate of the present invention;

[0031] Figure 4This is a schematic diagram of the main cross-sectional perspective structure of the speed limiting structure of the present utility model;

[0032] Figure 5 This is a schematic diagram of a main sectional three-dimensional structure of a piston of the present invention.

[0033] In the accompanying drawings, the components represented by the reference numerals are as follows:

[0034] 100. Main structure; 101. Sleeve 1; 102. Sleeve 2; 103. Mounting plate 1; 104. Support column; 105. Mounting plate 2; 106. Plug rod; 107. Spring; 108. Sealing ring 1; 109. Piston 1; 110. Hydraulic cylinder; 111. Oil hole; 112. Fillet;

[0035] 200, speed limiting structure; 201, torsion ring; 202, bracket; 203, piston 2; 204, adjusting rod; 205, sealing ring 2; 206, thread;

[0036] 300, brake structure; 301, guide rail; 302, electric push rod; 303, slider; 304, travel plate; 305, fixed plate; 306, latching tooth; 307, fixed tooth. DETAILED DESCRIPTION

[0037] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0038] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0039] Next, the present invention is described in detail with reference to schematic diagrams. For ease of illustration, cross-sectional views of device structures may be partially enlarged and not to scale when describing the embodiments of the present invention. Furthermore, the schematic diagrams are merely illustrative and should not limit the scope of protection of the present invention. Furthermore, in actual production, three-dimensional dimensions, including length, width, and depth, should be included.

[0040] In order to make the purpose, technical solutions and advantages of the present invention more clear, the embodiments of the present invention will be described in further detail below with reference to the accompanying drawings.

[0041] Example 1

[0042] See also Figure 1-Figure 5 As shown, this embodiment is a speed limiting and braking device of a penetrating shock absorber, comprising:

[0043] The main structure 100 includes a sleeve 101, a sleeve 102 sleeved on the outside of the sleeve 101, a spring 107 fixed to the inside of the sleeve 102 and the sleeve 101, a hydraulic cylinder 110 fixed to the inner wall of the upper end of the sleeve 102 and located inside the spring 107, a piston 109 slidably mounted inside the hydraulic cylinder 110, a plug rod 106 located at one end of the piston 109 and extending through the lower end of the sleeve 102, and an oil hole 111 defined in the piston 109.

[0044] A sealing ring 108 is embedded in the lower end of the hydraulic cylinder 110, and the upper end of the plug rod 106 is slidably inserted into the sealing ring 108;

[0045] The oil holes 111 are distributed in an annular array inside the piston 109, and the upper and lower openings of the oil holes 111 are both provided with arc-shaped fillets 112;

[0046] Two sets of symmetrically distributed support columns 104 are provided on the upper end of the second sleeve 102, and a second mounting plate 105 is provided on the upper end of the support columns 104;

[0047] The lower end of the plug rod 106 is provided with a mounting plate 103, and both the mounting plate 103 and the mounting plate 2 105 are provided with mounting holes;

[0048] Performing use of the main structure 100;

[0049] The mounting plate 103 and the mounting plate 2 105 are docked with the mounting structure, and the fixing parts are inserted into the mounting holes to fix the mounting plate 103 and the mounting plate 2 105. When impacted, the spring 107 is forced to shrink, and the plug rod 106 slides inside the sealing ring 108, driving the piston 109 to slide inside the hydraulic cylinder 110. The sleeve 101 and the sleeve 2 102 move relative to each other. When the piston moves, the hydraulic oil inside the upper and lower ends of the hydraulic cylinder 110 passes through the oil hole 111 and flows inside the upper and lower ends of the hydraulic cylinder 110. The hydraulic oil passing through the oil hole 111 is subjected to resistance when passing through the oil hole 111. At the same time, the reduction of the rounded corner 112 also has friction on the oil hole 111. The resistance acts on the spring 107 through the piston 109. The main structure 100, which is subjected to a damping effect, cooperates with the spring 107 to effectively reduce shock and buffer.

[0050] Example 2

[0051] See also Figure 1-Figure 5 As shown, this embodiment is based on embodiment 1 and also includes:

[0052] The speed limiting structure 200 includes a bracket 202 located at the upper end of the second sleeve 102, a second sealing ring 205 embedded in the interior of the hydraulic cylinder 110, an adjusting rod 204 slidably inserted into the interior of the second sealing ring 205, and a second piston 203 located at the lower end of the adjusting rod 204 and located inside the upper end of the hydraulic cylinder 110;

[0053] as well as;

[0054] The brake structure 300 includes a fixed plate 305 fixed to the outer walls of both sides of the hydraulic cylinder 110, a stroke plate 304 located on one side of the fixed plate 305, fixed teeth 307 distributed at equal intervals at one end of the stroke plate 304, locking teeth 306 distributed at equal intervals at one end of the stroke plate 304, and an electric push rod 302 fixed to the upper end of the sleeve 102 and connected to the stroke plate 304 at its telescopic end.

[0055] A torsion ring 201 is provided at the upper end of the adjusting rod 204, and the adjusting rod 204 is rotatably connected to the bracket 202 via a thread 206;

[0056] Two sets of symmetrically distributed guide rails 301 are provided on the upper end of the second mounting plate 105, and a slider 303 is provided on the upper end of the travel plate 304, which is slidably sleeved on the outer wall of the guide rail 301;

[0057] Use of the speed limiting structure 200 and the brake structure 300;

[0058] When the penetrating shock absorber installed on a vehicle is in use, the gripping torsion ring 201 drives the adjusting rod 204 to rotate inside the bracket 202, driving the piston to move longitudinally inside the hydraulic cylinder 110, so that the internal space of the hydraulic cylinder 110 is squeezed or the internal pressure is reduced. When the vehicle is used on flat roads and mountainous roads, the resistance of the piston is adjusted and the damping effect is adjusted, thereby limiting the shock absorption effect of the penetrating shock absorber, effectively limiting the speed, and adapting to the use of different road sections;

[0059] At the same time, when the electric push rod 302 is operating, it drives the travel plate 304 to move relative to each other, drives the travel plate 304 to move toward the fixed plate 305, and the latching tooth 306 moves between the fixed teeth 307. When engaging with the fixed teeth 307, the latching tooth 306 is engaged with the fixed teeth 307, and the stroke of the sleeve 101 is idle, so that the shock absorber is locked. In applications that require rapid stopping or emergency braking, the brake structure 300 can ensure that the penetrating shock absorber can respond in time to prevent accidents or equipment damage. In protecting equipment or machinery from severe impact or vibration, the brake structure 300 can serve as an auxiliary protection measure. In dealing with changing working conditions and applications that require flexible response, the brake structure 300 helps to improve the performance stability of the shock absorber to ensure that it can work normally under various circumstances.

[0060] It should also be noted that, in the description of this utility model, unless otherwise expressly specified or limited, the terms "disposed," "installed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0061] Finally, it should be noted that the above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art will be able to modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein with equivalents. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A speed limiting and braking device for a penetrating shock absorber, characterized by: include, The main structure (100) includes a sleeve (101), a sleeve (102) sleeved on the outside of the sleeve (101), a spring (107) fixed inside the sleeve (102) and the sleeve (101), a hydraulic cylinder (110) fixed on the inner wall of the upper end of the sleeve (102) and located inside the spring (107), a piston (109) slidably installed inside the hydraulic cylinder (110), a plug rod (106) located at one end of the piston (109) and passing through the lower end of the sleeve (102), and an oil hole (111) opened inside the piston (109); The speed limiting structure (200) includes a bracket (202) located at the upper end of the second sleeve (102), a second sealing ring (205) embedded in the interior of the hydraulic cylinder (110), an adjusting rod (204) slidably inserted into the interior of the second sealing ring (205), and a second piston (203) located at the lower end of the adjusting rod (204) and located inside the upper end of the hydraulic cylinder (110); as well as; The brake structure (300) includes a fixed plate (305) fixed on the outer walls of both sides of the hydraulic cylinder (110), a travel plate (304) located on one side of the fixed plate (305), fixed teeth (307) located at one end of the travel plate (304) and distributed at equal intervals, latching teeth (306) located at one end of the travel plate (304) and distributed at equal intervals, and an electric push rod (302) fixed on the upper end of the second sleeve (102) and connected to the travel plate (304) at its telescopic end.

2. The speed limiting and braking device of a penetrating shock absorber according to claim 1, characterized in that: A sealing ring (108) is embedded and installed inside the lower end of the hydraulic cylinder (110), and the upper end of the plug rod (106) is slidably inserted into the interior of the sealing ring (108).

3. The speed limiting and braking device of a penetrating shock absorber according to claim 1, characterized in that: The oil holes (111) are distributed in a ring array inside the piston (109), and arc-shaped fillets (112) are provided at the upper and lower openings of the oil holes (111).

4. The speed limiting and braking device of a penetrating shock absorber according to claim 1, characterized in that: The upper end of the adjusting rod (204) is provided with a torsion ring (201), and the adjusting rod (204) and the bracket (202) are rotatably connected via a thread (206).

5. The speed limiting and braking device of a penetrating shock absorber according to claim 1, characterized in that: Two groups of symmetrically distributed support columns (104) are provided at the upper end of the second sleeve (102), and a second mounting plate (105) is provided at the upper end of the support columns (104).

6. The speed limiting and braking device of a penetrating shock absorber according to claim 5, characterized in that: The upper end of the second mounting plate (105) is provided with two sets of symmetrically distributed guide rails (301), the upper end of the travel plate (304) is provided with a slider (303) slidably sleeved on the outer wall of the guide rail (301), the lower end of the plug rod (106) is provided with a first mounting plate (103), and both the first mounting plate (103) and the second mounting plate (105) are provided with mounting holes.

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