Pressure-limiting speed-reducing anti-collision power joint based on hydraulic device

Abstract

The utility model relates to a pressure-limiting speed-reducing anti-collision power joint based on a hydraulic device, which comprises a sleeve, four drainage holes are arranged at the rear part along the axial direction of the sleeve, a drainage ring is arranged at the front part along the axial direction of the sleeve, the drainage holes are connected with the drainage ring through a flow guide channel, and a cavity is arranged at the front end of the sleeve. A limiting ring is mounted at the axial front end of the cavity chamber and can prevent the anti-collision hydraulic device from popping up; a plurality of packing cup assemblies are arranged, the packing cup assemblies are installed at the front end and the rear end of the sleeve respectively, and packing cups at the rear end are arranged in front of the drainage hole in the axial direction; an anti-collision hydraulic device is arranged, the rear end of the anti-collision hydraulic device is arranged in the cavity chamber, the anti-collision hydraulic device axially moves along with the pressure change of fluid in the flow guide channel, the fluid flows out from the flow drainage ring to the front of the power section, and therefore the function of adjusting the front-back pressure difference of the power section is achieved, and then the speed reduction problem of the power section is solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to pipeline equipment technical field, especially a kind of pressure-limiting deceleration anti-collision power node based on hydraulic device. BACKGROUND

[0002] The development of the entity economy of countries in the world cannot leave industrial, and pipeline transportation is very important in industrial field due to its extensive applicability, efficiency, environmental protection and economy etc.;The development prospect of pipeline transportation is broad, but at the same time, pipeline transportation also faces some challenges, such as pipeline aging, corrosion, leakage and other problems.;The power node on the traditional inner detector for pipeline maintenance is usually composed of sleeve and supporting leather cup, cannot control maximum speed, adjust front and back medium pressure, so as to possibly cause leather cup wear aggravation, speed uneven in detection process, not resistant to collision and many other problems;

[0003] A speed control device for pipeline inner detector is disclosed in Chinese utility model patent CN222047059U, which controls the flow of transmission medium through the speed control hole by speed controller, reduces the pressure before and after leather cup, ensures that the operating pressure received by magnetic flux leakage inner detector is constant, so as to achieve the purpose of controlling the detection speed of magnetic flux leakage inner detector, but the detection pipeline may exist gravel or large impurities, so that the speed control hole is easy to be blocked, which is not conducive to the stable speed regulation of inner detection device, so as to cause that pipeline cannot be detected accurately and efficiently

[0004] In summary, how to control the speed of power node and adjust the front and back medium pressure become the problems that researchers in the field urgently need to solve. UTILITY MODEL CONTENT

[0005] The technical problem to be solved by the utility model is how to realize the speed adjustment of power node.

[0006] To solve the above technical problems, the technical scheme adopted by the utility model is as follows:

[0007] A pressure-limiting deceleration anti-collision power node based on hydraulic device, comprising:

[0008] Sleeve 1;

[0009] A plurality of leather cup assemblies 2 are installed at the front end and the rear end of the outer periphery of the sleeve 1.

[0010] Anti-collision hydraulic device 3 is arranged in the cavity chamber 16 of sleeve 1 at the rear end.

[0011] Further, the sleeve 1 comprises:

[0012] Sleeve body 11;Including inner cylinder and outer cylinder;Flow guide channel 13 is formed between inner cylinder and outer cylinder;

[0013] Drain hole 12, the drain hole 12 is arranged at the axial rear end of the sleeve body 11, the drain hole 12 is provided with four, the included angle of two drain holes 12 is 90 °;

[0014] Drain ring 14, the drain ring 14 is the front end face of the flow guide channel 13;

[0015] Flow guide channel 13, the flow guide channel 13 is communicated between the drain hole 12 and the drain ring 14;

[0016] Limiting ring 15, the limiting ring 15 is installed at the axial front end of the cavity chamber 16, and the limiting ring 15 can prevent the anti-collision hydraulic device 3 from being ejected;

[0017] Cavity chamber 16, the cavity chamber 16 is located at the front end of the inner cylinder, and the rear end of the inner cylinder is solid.

[0018] Further, the leather cup assembly comprises:

[0019] Leather cup assembly 2, the leather cup assembly 2 comprises front end leather cup 21 and rear end leather cup 22, which are respectively installed at the front end and the rear end of the sleeve 1, and the rear end leather cup 22 is arranged at the front end of the drain hole 12.

[0020] Further, the anti-collision hydraulic device 3 comprises:

[0021] Anti-collision head 31, the anti-collision head 31 is composed of two half circular rings intersecting each other;

[0022] Pressure receiving surface 32, the pressure receiving surface 32 is connected with the end of the two half circular rings of the anti-collision head 31; the size is capable of covering the drain ring 14;

[0023] Hydraulic rod 33, the hydraulic rod 33 is vertically connected at the rear end of the pressure receiving surface 32 and located in the cavity chamber 16;

[0024] Sealing ring 34, the sealing ring 34 is sleeved on the axial rear end of the hydraulic rod 33.

[0025] The utility model discloses a kind of pressure limiting deceleration anti-collision power nodes based on hydraulic device, the anti-collision hydraulic device moves axially along with the fluid pressure change in flow guide channel, fluid flows out from drain ring to the front of power node, to realize the function of adjusting pressure difference before and after power node, to realize power node deceleration problem further. DRAWINGS

[0026] The utility model is further described below in connection with drawings and examples.

[0027] Fig. 1 It is the appearance schematic diagram of the utility model;

[0028] Fig. 2 is the sectional view of the utility model 45 °;

[0029] Fig. 3 is the sectional view of the utility model 180 °;

[0030] In the figure: 1-sleeve, 11-sleeve body, 12-bleeding hole, 13-bleeding channel, 14-bleeding ring, 15-limiting ring, 16-cavity chamber, 2-leather cup assembly, 21-front leather cup, 22-rear leather cup, 3-anti-collision hydraulic device, 31-anti-collision head, 32-pressure receiving surface, 33-hydraulic rod, 34-sealing ring. DETAILED DESCRIPTION

[0031] The utility model will be further explained in detail in combination with the drawings. These drawings are all simplified schematic diagrams, and only illustrate the basic structure of the utility model in a schematic manner, so they only show the structure related to the utility model.

[0032] As Figs. 1-3 shown, the utility model is a kind of anti-collision power saving based on hydraulic device, comprising: sleeve 1;Multiple leather cup assemblies 2, the leather cup assembly 2 is installed in the sleeve 1 front end and rear end each one;Anti-collision hydraulic device 3, the rear end of the anti-collision hydraulic device 3 is arranged in the cavity chamber 16;

[0033] In the scheme, bleeding hole 12 is provided in the axial rear of sleeve 1, bleeding ring 14 is provided in the axial front, and bleeding hole 12 and bleeding ring 14 are connected by bleeding channel 13. When the pressure of fluid in bleeding channel 13 changes, anti-collision hydraulic device 3 moves axially, high-pressure bleeding is formed, and low-pressure closing state is formed, so that the speed of power saving can be adjusted.

[0034] As Figs. 1-3 shown, in order to illustrate the specific structure of sleeve 1, the utility model adopts sleeve 1, which comprises: bleeding hole 12, which is arranged in the axial direction of sleeve 1;Bleeding ring 14, which is arranged in the axial direction of sleeve 1;Bleeding channel 13, which connects bleeding hole and bleeding ring 14;Limiting ring 15, which is installed in the axial front end of cavity chamber 16, and limiting ring 15 can prevent anti-collision hydraulic device 3 from popping out;Cavity chamber 16, which is located in the front end of sleeve 1.

[0035] As Figs. 1-3As shown in the specific structure of the anti-collision hydraulic device 3, the utility model discloses an anti-collision hydraulic device 3, which comprises: an anti-collision head 31, which is composed of two half circular rings; a pressure receiving surface 32, which is connected with the anti-collision head 31; a hydraulic rod 33, which is located in the cavity chamber 16, and the axial front end is connected with the pressure receiving surface 32; and a sealing ring 34, which is located at the axial rear end of the hydraulic rod 33.

[0036] In the present scheme, if the fluid in the flow guide channel 13 in the sleeve 1 acts on the pressure receiving surface 32 with a pressure changing from small to large, the anti-collision hydraulic device 3 moves axially forward, the fluid flows from the rear of the power section to the front of the power section through the flow relief ring 14 until the power section restores to the set running speed.

[0037] If the fluid in the flow guide channel in the sleeve 1 acts on the pressure receiving surface 32 with a pressure changing from large to small, the anti-collision hydraulic device 3 moves axially backward from the flow relief state until it is closed, and the fluid no longer flows from the rear of the power section to the front of the power section through the flow relief ring 14.

[0038] As shown in the specific structure of the anti-collision hydraulic device 3, the utility model discloses an anti-collision hydraulic device 3, which comprises: an anti-collision head 31, which is composed of two half circular rings; a pressure receiving surface 32, which is connected with the anti-collision head 31; a hydraulic rod 33, which is located in the cavity chamber 16, and the axial front end is connected with the pressure receiving surface 32; and a sealing ring 34, which is located at the axial rear end of the hydraulic rod 33. Figs. 1-3 As shown in the specific structure of the anti-collision hydraulic device 3, the utility model discloses an anti-collision hydraulic device 3, which comprises: an anti-collision head 31, which is composed of two half circular rings; a pressure receiving surface 32, which is connected with the anti-collision head 31; a hydraulic rod 33, which is located in the cavity chamber 16, and the axial front end is connected with the pressure receiving surface 32; and a sealing ring 34, which is located at the axial rear end of the hydraulic rod 33.

[0039] As shown in the specific structure of the anti-collision hydraulic device 3, the utility model discloses an anti-collision hydraulic device 3, which comprises: an anti-collision head 31, which is composed of two half circular rings; a pressure receiving surface 32, which is connected with the anti-collision head 31; a hydraulic rod 33, which is located in the cavity chamber 16, and the axial front end is connected with the pressure receiving surface 32; and a sealing ring 34, which is located at the axial rear end of the hydraulic rod 33. Figs. 1-3 As shown in the specific structure of the anti-collision hydraulic device 3, the utility model discloses an anti-collision hydraulic device 3, which comprises: an anti-collision head 31, which is composed of two half circular rings; a pressure receiving surface 32, which is connected with the anti-collision head 31; a hydraulic rod 33, which is located in the cavity chamber 16, and the axial front end is connected with the pressure receiving surface 32; and a sealing ring 34, which is located at the axial rear end of the hydraulic rod 33.

[0040] As shown in the specific structure of the anti-collision hydraulic device 3, the utility model discloses an anti-collision hydraulic device 3, which comprises: an anti-collision head 31, which is composed of two half circular rings; a pressure receiving surface 32, which is connected with the anti-collision head 31; a hydraulic rod 33, which is located in the cavity chamber 16, and the axial front end is connected with the pressure receiving surface 32; and a sealing ring 34, which is located at the axial rear end of the hydraulic rod 33. Figs. 1-3 As shown in the specific structure of the anti-collision hydraulic device 3, the utility model discloses an anti-collision hydraulic device 3, which comprises: an anti-collision head 31, which is composed of two half circular rings; a pressure receiving surface 32, which is connected with the anti-collision head 31; a hydraulic rod 33, which is located in the cavity chamber 16, and the axial front end is connected with the pressure receiving surface 32; and a sealing ring 34, which is located at the axial rear end of the hydraulic rod 33.

[0041] The utility model discloses a kind of pressure limiting deceleration anti-collision power section based on hydraulic device, the anti-collision hydraulic device 3 moves axially along with the fluid pressure change in the flow guide channel 13, fluid flows out from the flow relief ring 14 to the front of power section, to realize the function of adjusting the pressure difference before and after power section, and then realize power section deceleration problem.

[0042] The above is based on the ideal embodiment of the utility model as inspiration, through the above description, relevant staff can make various changes and modifications without deviating from the technical idea of the utility model.The technical scope of the utility model is not limited to the contents in the specification, and must be determined by the scope of claims.

Claims

1. A hydraulic device based pressure limited deceleration crash power saver, characterized in that, The invention relates to a kind of hydraulic cylinder, comprising: A sleeve (1); A plurality of skin bowl assemblies (2) are installed at the front end and the rear end of the outer periphery of the sleeve (1); A collision-proof hydraulic device (3) is arranged in the cavity chamber (16) of the sleeve (1) at the rear end.

2. A hydraulic device-based pressure-limited deceleration collision-avoidance power saver according to claim 1, characterized by, The sleeve (1) comprises: A sleeve body (11) comprising an inner sleeve and an outer sleeve, a flow guide channel (13) is formed between the inner sleeve and the outer sleeve; Drainage holes (12) are arranged at the axial rear end of the sleeve body (11), and four drainage holes (12) are arranged, and the included angle between two drainage holes (12) is 90°; A drainage ring (14) is the front end face of the flow guide channel (13); The flow guide channel (13) is connected between the drainage hole (12) and the drainage ring (14); A limiting ring (15) is arranged at the axial front end of the cavity chamber (16), and the limiting ring (15) can prevent the collision-proof hydraulic device (3) from being ejected; The cavity chamber (16) is located at the front end of the inner sleeve, and the rear end of the inner sleeve is solid.

3. A hydraulic device based pressure-limited deceleration collision-avoidance power saver according to claim 2, wherein The skin bowl assembly comprises: A skin bowl assembly (2) comprising a front-end skin bowl (21) and a rear-end skin bowl (22) is arranged at the front end and the rear end of the sleeve (1), respectively, and the rear-end skin bowl (22) is arranged at the front end of the drainage hole (12).

4. A hydraulic device based pressure-limited deceleration collision-avoidance power saver according to claim 1, wherein The collision-proof hydraulic device (3) comprises: A collision-proof head (31) composed of two half-rings intersecting each other; A pressure receiving surface (32) connected to the end of the two half-rings of the collision-proof head (31), and the size is large enough to cover the drainage ring (14); A hydraulic rod (33) vertically connected at the rear end of the pressure receiving surface (32) and located in the cavity chamber (16); A sealing ring (34) sleeved at the axial rear end of the hydraulic rod (33).

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