Energy accumulator capable of preventing rotation installation

Abstract

The utility model is applicable to the technical field of hydraulic equipment, and provides an energy accumulator capable of preventing rotation installation, which comprises a cylinder body, the cylinder body comprises a first end cover, the first end cover is provided with a connecting part and an installation part, the connecting part is embedded in the cylinder body, the installation part is provided with a first installation hole and a second installation hole, and the first installation hole is communicated with the second installation hole. The first mounting hole is parallel to the surface of the first end cover; the piston is mounted in the cylinder body, so that an oil cavity and an air cavity are formed in the cylinder body. The first end cover is arranged on the cylinder body, the first installation hole and the second installation hole are formed in the installation portion of the first end cover, the length direction of the first installation hole is parallel to the upper surface of the first end cover, and the first installation hole penetrates through the first installation hole through the fixing piece so that the energy accumulator can be installed at the installation position. In addition, the energy accumulator can be prevented from rotating after being installed, a matched bracket does not need to be designed, and the problems that the whole disassembling and assembling process is tedious in step and wastes time and labor are solved.

Description

Technical Field

[0001] The utility model belongs to the technical field of hydraulic equipment, and in particular relates to an accumulator with an anti-rotation installation. Background Art

[0002] The accumulator is an energy storage device in the hydraulic and pneumatic system. It converts the energy in the system into compression energy or potential energy and stores it at the right time. When the system needs it, it converts the compression energy or potential energy into hydraulic or air pressure energy and releases it to replenish the system.

[0003] At present, the accumulator is a device used to store energy. The functions of the accumulator are mostly buffering, pressure replenishment, pulse, etc. in the system. Moreover, the pressure replenishment time is short during work. Due to the limitations of the use field, the structural composition of the accumulator varies according to its type and application scenario. It usually consists of the following parts: shell, airbag, piston, gas part, oil part, charging valve, oil inlet valve and oil outlet valve, seals, end covers, connectors, safety devices, support brackets, installation accessories, etc.

[0004] In the prior art, most accumulators require a special bracket or support to support the accumulator during installation, and workers need to use tools to install or disassemble it during the installation and disassembly process. During the installation process, a large space needs to be reserved to install the accumulator and the corresponding bracket or support, and the entire installation and disassembly process is cumbersome, time-consuming and labor-intensive. Utility Model Content

[0005] The purpose of the embodiment of the utility model is to provide an accumulator with an anti-rotation installation, aiming to solve the problem that most accumulators need to be equipped with a special bracket or support to support the accumulator during installation, and workers need to use tools to install or disassemble it during the installation and disassembly process. During the installation process, a large space needs to be reserved to install the accumulator and the bracket or support compatible with it, and the entire disassembly and assembly process is cumbersome, time-consuming and labor-intensive.

[0006] The utility model is implemented in this way: an accumulator with an anti-rotation installation, the accumulator comprises:

[0007] The cylinder comprises a first end cover, the first end cover is provided with a connecting portion and a mounting portion, the connecting portion is embedded in the cylinder, the mounting portion is provided with a first mounting hole and a second mounting hole, the first mounting hole is perpendicular to the cylinder, the first mounting hole is used for mounting the accumulator, and the second mounting hole is used for mounting the liquid inlet pipe to facilitate the oil to enter and exit the cylinder;

[0008] The piston is installed inside the cylinder so that an oil chamber and an air chamber are formed inside the cylinder.

[0009] Preferably, the cylinder body is cylindrical, and the first end cover and the second end cover are respectively connected to the two ends of the cylinder body. The inner wall of the cylinder body is provided with a first annular protrusion and a second annular protrusion, and a first annular mounting groove is provided on one side of the first annular protrusion. The first annular protrusion and the first annular mounting groove are used to position the first end cover, and a second annular mounting groove is provided on one side of the second annular protrusion. The second annular protrusion and the second annular mounting groove are used to position the second end cover.

[0010] Preferably, the first end cover is irregular in shape, the first end cover connecting part is columnar, and the outer side surface of the first end cover connecting part is provided with a first mounting groove and a third annular protrusion, the first mounting groove is used to install the first sealing ring and cooperate with the first annular protrusion on the cylinder body to connect the first end cover to the cylinder body, and the third annular protrusion is embedded in the first annular mounting groove.

[0011] Preferably, the first end cover mounting portion is columnar and the outer diameter of the mounting portion is smaller than the outer diameter of the connecting portion, the second mounting hole is L-shaped, and the second mounting hole is provided with a first port and a second port, the first port is located on the outer side of the mounting portion and is stepped, the first port is used to connect to the liquid inlet pipe, the second port is located on the bottom surface of the first end cover connecting portion, and the second port is connected to the oil chamber inside the cylinder to facilitate the oil to enter and exit from the second port.

[0012] Preferably, a second mounting groove and a fourth annular protrusion are provided on the outer side surface of the second end cover, the second mounting groove is used to install the second sealing ring and cooperates with the second annular protrusion on the cylinder body to connect the second end cover to the cylinder body, the fourth annular protrusion is embedded in the second annular mounting groove, an air hole is provided at the center position of the second end cover, an air valve is installed on the air hole, and a protective cap is provided on the air valve, and the protective cap is used to prevent impurities from entering the air cavity.

[0013] Preferably, the piston is arranged as a columnar structure, and the piston is provided with multiple groups of mounting grooves; the mounting grooves include type I mounting grooves, type II mounting grooves, type III mounting grooves and type IV mounting grooves, the type I mounting grooves are used to install buffer seals that reduce friction between the piston and the cylinder body, the type II mounting grooves are arranged in two groups, the type II mounting grooves are used to install one-way seals that prevent leakage of hydraulic oil or gas, the type III mounting grooves are used to install drainage seals that divert oil to the oil chamber, the type IV mounting grooves are used to install bidirectional seals, and the bidirectional seals are used to install to prevent leakage of oil and gas.

[0014] Preferably, the mounting groove is annular and is arranged in six groups. The six groups of mounting grooves are arranged side by side on the side wall of the piston and are respectively the third mounting groove, the fourth mounting groove, the fifth mounting groove, the sixth mounting groove, the seventh mounting groove and the eighth mounting groove. The third mounting groove and the eighth mounting groove are type I mounting grooves and have the same groove depth and groove width. The fourth mounting groove is type III mounting groove and has a groove depth greater than the groove depth of the third mounting groove, the fifth mounting groove, the sixth mounting groove, the seventh mounting groove and the eighth mounting groove. The fifth mounting groove and the seventh mounting groove are type II mounting grooves and have the same groove depth and groove width. The sixth mounting groove is type IV mounting groove and has a groove width greater than the groove width of the third mounting groove, the twenty-fourth mounting groove, the fifth mounting groove, the seventh mounting groove and the eighth mounting groove.

[0015] Preferably, the sealing member comprises a third sealing ring, a fourth sealing ring, a fifth sealing ring, a sixth sealing ring, a seventh sealing ring and an eighth sealing ring, the third sealing ring and the eighth sealing ring being respectively mounted on the third mounting groove and the sixth and eighth mounting grooves, the third sealing ring and the eighth sealing ring being used to reduce the friction between the piston and the cylinder, the fourth sealing ring being used to guide the infiltrated oil into the oil chamber, the fifth sealing ring being used to block the infiltration of oil into the oil chamber, the seventh sealing ring being used to block the infiltration of gas into the air chamber, and the sixth sealing ring being provided with a double-layer sealing layer for respectively blocking the oil in the oil chamber and the gas in the air chamber.

[0016] Preferably, the piston is further provided with a plurality of guide grooves, the guide grooves are used to prevent the formation of an oil film between the piston and the first end cover, the guide grooves are provided on the annular protrusions on the first end face, and the guide groove surfaces are higher than the first positioning groove surfaces.

[0017] The utility model provides an anti-rotation mounted accumulator. The utility model provides a first end cover on a cylinder body. The first end cover is provided with a connecting portion and a mounting portion, which is connected to the cylinder body by the connecting portion and a first mounting hole and a second mounting hole are provided on the mounting portion. The length direction of the first mounting hole is parallel to the upper surface of the first end cover. The first mounting hole is passed through the first mounting hole by a fixing member so as to facilitate installation of the anti-rotation mounted accumulator at the mounting position. The second mounting hole is used to install a liquid inlet pipe so as to facilitate oil to enter the oil cavity inside the cylinder body. The accumulator is installed at the mounting position by matching the fixing member with the first mounting hole. The accumulator can be prevented from rotating after installation to affect the energy stored in the anti-rotation mounted accumulator. There is no need to design an adapted bracket, which solves the problem that a large space needs to be reserved during the installation process to install the accumulator and a bracket or bracket adapted thereto, and the entire disassembly and assembly process is cumbersome, time-consuming and labor-intensive. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 A three-dimensional structural diagram of an anti-rotationally mounted accumulator provided in an embodiment of the utility model;

[0019] Figure 2 A schematic diagram of the internal structure of an anti-rotationally mounted accumulator provided in an embodiment of the utility model;

[0020] Figure 3 A sectional view of a main view of an accumulator with an anti-rotation installation provided by an embodiment of the utility model;

[0021] Figure 4 A schematic structural diagram of a piston in an accumulator with an anti-rotation installation provided in an embodiment of the utility model.

[0022] In the accompanying drawings: 1. cylinder; 11. first end cover; 111. mounting portion; 1111. first mounting hole; 1112. second mounting hole; 11121. first port; 11122. second port; 112. connecting portion; 1121. third annular protrusion; 1122. first mounting groove; 12. second end cover; 121. second mounting groove; 122. fourth annular protrusion; 13. liquid inlet pipe; 14. air valve; 141. protective cap; 2. piston; 21. mounting groove; 211. third mounting groove; 212. fourth mounting groove; 213. fifth mounting groove; 214. sixth mounting groove; 215. seventh mounting groove; 216. eighth mounting groove; 22. guide groove. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0024] The specific implementation of the present utility model is described in detail below in conjunction with specific embodiments.

[0025] like Figure 1-4 As shown, it is a structural diagram of an anti-rotation mounted accumulator provided by an embodiment of the utility model, comprising: a cylinder 1, the cylinder 1 comprising a first end cover 11, the first end cover 11 is provided with a connecting portion 112 and a mounting portion 111, the connecting portion 112 is embedded in the cylinder 1, the mounting portion 111 is provided with a first mounting hole 1111 and a second mounting hole 1112, the first mounting hole 1111 is perpendicular to the cylinder 1, the first mounting hole 1111 is used for mounting the accumulator, and the second mounting hole 1112 is used for mounting a liquid inlet pipe 13 to facilitate the oil to enter and exit the cylinder 1;

[0026] The piston 2 is installed inside the cylinder 1 so that an oil chamber and an air chamber are formed inside the cylinder 1.

[0027] In the embodiment of the utility model, preferably, the accumulator can be installed at the installation position according to the first installation hole 1111 on the first end cover 11 for use. The accumulator is mainly composed of a cylinder 1 and a piston 2. The cylinder 1 can be a hollow structure and a first end cover 11 is arranged at one end thereof. The first end cover 11 is connected to the cylinder 1 through a connecting portion 112. The mounting portion 111 is arranged on the connecting portion 112, and a strip-shaped first mounting hole 1111 and a second mounting hole 1112 are arranged on the mounting portion 111. The hole of the first mounting hole 1111 The diameter is parallel to the upper surface of the first end cover 11, and the accumulator can be installed at the installation position by a fixing part, which can be a rod-shaped or rope-shaped fixing part that passes through the first installation hole 1111 and completely installs the accumulator, and can also prevent the accumulator from rotating. The second installation hole 1112 is connected to one end of the liquid inlet pipe 13 to allow oil to enter the oil chamber of the cylinder 1. The second installation hole 1112 is connected to the internal cavity of the cylinder 1. The piston 2 divides the interior of the cylinder 1 into an oil chamber and an air chamber inside the cylinder 1 and maintains the pressure inside the accumulator stable.

[0028] In an example of the utility model, the utility model sets a first end cover 11 on the cylinder 1, and the first end cover 11 is provided with a connecting portion 112 and a mounting portion 111, which is connected to the cylinder 1 by the connecting portion 112 and is provided with a first mounting hole 1111 and a second mounting hole 1112 on the mounting portion 111, the length direction of the first mounting hole 1111 is parallel to the upper surface of the first end cover 11, the first mounting hole 1111 is passed through the first mounting hole 1111 by a fixing member to facilitate the installation of the accumulator at the installation position, and the second mounting hole 1112 is used to install the liquid inlet pipe 13 to facilitate the oil to enter the oil cavity inside the cylinder 1, and the accumulator is installed at the installation position by matching the fixing member with the first mounting hole 1111, and the accumulator can be prevented from rotating after installation to affect the energy stored in the accumulator. There is no need to design an adaptive bracket, which solves the problem that a large space needs to be reserved during the installation process to install the accumulator and the bracket or bracket adapted thereto, and the entire disassembly and assembly process is cumbersome, time-consuming and labor-intensive.

[0029] like Figure 1-4 As shown, as a preferred embodiment of the utility model, the cylinder 1 is cylindrical, and the first end cover 11 and the second end cover 12 are respectively connected to the two ends of the cylinder 1. The inner wall surface of the cylinder 1 is provided with a first annular protrusion and a second annular protrusion, and a first annular mounting groove is provided on one side of the first annular protrusion. The first annular protrusion and the first annular mounting groove are used to position the first end cover 11, and a second annular mounting groove is provided on one side of the second annular protrusion. The second annular protrusion and the second annular mounting groove are used to position the second end cover 12.

[0030] In the embodiment of the utility model, preferably, the cylinder body 1 can be a cylindrical cylinder with a certain height and a hollow structure, and a first annular protrusion and a first annular mounting groove arranged in parallel with the first annular protrusion are respectively arranged at both ends of the inner wall surface to jointly position the first end cover 11, and a second annular protrusion and a second annular mounting groove arranged in parallel with the second annular protrusion are jointly positioned the second end cover 12.

[0031] like Figure 1-4 As shown, as a preferred embodiment of the utility model, the first end cover 11 is irregular in shape, the connecting portion 112 of the first end cover 11 is columnar, and the outer side surface of the connecting portion 112 of the first end cover 11 is provided with a first mounting groove 1122 and a third annular protrusion 1121, the first mounting groove 1122 is used to install the first sealing ring and cooperate with the first annular protrusion on the cylinder body 1 to connect the first end cover 11 to the cylinder body 1, and the third annular protrusion 1121 is embedded in the first annular mounting groove.

[0032] In the embodiment of the utility model, preferably, the first end cover 11 can be an irregular structure formed by connecting two columnar parts with different outer diameters. The outer diameter of the connecting part 112 of the first end cover 11 is the same as the inner diameter of the cylinder 1 so that the connecting part 112 can be installed on the cylinder 1. A first mounting groove 1122 is provided on the connecting part 112 to cooperate with the first annular protrusion on the cylinder 1 and a first sealing ring is used to prevent the oil in the oil chamber from affecting the connection between the first end cover 11 and the cylinder 1. The third annular protrusion 1121 can be provided above the first mounting groove 1122, and the third annular protrusion 1121 can be embedded in the first annular mounting groove so that the cylinder 1 and the first end cover 11 are completely connected and prevent the oil in the oil chamber from leaking.

[0033] like Figure 1-4 As shown, as a preferred embodiment of the utility model, the mounting portion 111 of the first end cover 11 is columnar and the outer diameter of the mounting portion 111 is smaller than the outer diameter of the connecting portion 112, the second mounting hole 1112 is L-shaped, and the second mounting hole 1112 is provided with a first port 11121 and a second port 11122, the first port 11121 is located on the outer side of the mounting portion 111 and is stepped, the first port 11121 is used to connect with the liquid inlet pipe 13, the second port 11122 is located on the bottom surface of the connecting portion 112 of the first end cover 11, and the second port 11122 is communicated with the oil chamber inside the cylinder 1 to facilitate the oil to enter and exit from the second port 11122.

[0034] In the embodiment of the utility model, preferably, the mounting portion 111 of the first end cover 11 is located at the center of the connecting portion 112, the first mounting hole 1111 provided on the mounting portion 111 may be a transverse strip hole, the second mounting hole 1112 may be an L-shaped hole, and the first port 11121 is located on the side of the mounting portion 111, the second port 11122 passes through the first end cover 11 and is located on the bottom surface of the first end cover 11, and the first port 11121 located on the side may be set as a stepped sinking hole to facilitate fixing the liquid inlet pipe 13, and the second port 11122 may be located at the center of the bottom surface of the first end cover 11.

[0035] like Figure 1-4 As shown, as a preferred embodiment of the utility model, a second mounting groove 121 and a fourth annular protrusion 122 are provided on the outer side of the second end cover 12, the second mounting groove 121 is used to install the second sealing ring and cooperate with the second annular protrusion on the cylinder 1 to connect the second end cover 12 to the cylinder 1, the fourth annular protrusion 122 is embedded in the second annular mounting groove, an air hole is provided at the center position of the second end cover 12, the air valve 14 is installed on the air hole, and a protective cap 141 is provided on the air valve 14, and the protective cap 141 is used to prevent impurities from entering the air cavity.

[0036] In the embodiment of the utility model, preferably, the second end cover 12 is embedded in and installed inside the cylinder 1, and cooperates with the second annular protrusion in the cylinder 1 through the second installation groove 121 and utilizes the second sealing ring to prevent gas leakage in the air cavity from affecting the connection between the second end cover 12 and the cylinder 1, the fourth annular protrusion 122 cooperates with the second annular installation groove to facilitate positioning the connection between the second end cover 12 and the cylinder 1, an air hole can be provided on the end face of the second end cover 12 and a countersunk hole can be provided at one end of the air hole to facilitate the installation of the air valve 14, and a protective cap 141 is provided on the air valve 14 to prevent impurities from entering the air cavity through the air hole from the air valve 14 and affecting the energy storage effect of the accumulator.

[0037] like Figure 1-4 As shown, as a preferred embodiment of the utility model, the piston 2 is configured as a columnar structure, and the piston 2 is provided with multiple groups of mounting grooves 21; the mounting grooves 21 include a type of mounting groove 21, a type of mounting groove 21, a type of mounting groove 21 and a type of mounting groove 21. The type of mounting groove 21 is used to install a buffer seal that reduces the friction between the piston 2 and the cylinder 1. The type of mounting groove 21 is provided with two groups. The type of mounting groove 21 is used to install a one-way seal that prevents leakage of hydraulic oil or gas. The type of mounting groove 21 is used to install a drainage seal that diverts oil to the oil chamber. The type of mounting groove 21 is used to install a bidirectional seal, and the bidirectional seal is used to prevent leakage of oil and gas.

[0038] In the embodiment of the utility model, preferably, the piston 2 is arranged between the oil chamber and the air chamber. The shape of the piston 2 can be set to be similar to the cross-section of the cylinder 1, and can also be a cylindrical structure. A guide groove 22 can be set on the end face of the piston 2 that contacts the oil chamber so that when the hydraulic oil in the oil chamber flows out, the hydraulic oil in the gap between the end face of the piston 2 and the contact surface of the end cover can be guided to flow out to prevent the hydraulic oil from accumulating between the piston 2 and the end cover and affecting the use effect of the accumulator. A plurality of groups of mounting grooves 21 are set on the piston 2, and the plurality of groups of mounting grooves 21 are respectively used to install a plurality of groups of seals with different functions. The seals can be used to prevent the hydraulic oil on the oil chamber from leaking into the air chamber, the gas on the air chamber from leaking into the oil chamber, and even affecting the energy storage effect inside the entire anti-rotation mounted accumulator, and the seals can also reduce the friction between the piston 2 and the cylinder 1.

[0039] like Figure 1-4 As shown, as a preferred embodiment of the utility model, the mounting groove 21 is annular and is provided in six groups. The six groups of mounting grooves 21 are arranged side by side on the side wall of the piston 2 and are respectively a third mounting groove 211, a fourth mounting groove 212, a fifth mounting groove 213, a sixth mounting groove 214, a seventh mounting groove 215 and an eighth mounting groove 216. The third mounting groove 211 and the eighth mounting groove 216 are a type of mounting groove 21 and have the same groove depth and groove width. The fourth mounting groove 212 is a type of mounting groove 21. The fifth mounting groove 213 and the seventh mounting groove 215 are type II mounting grooves 21 and have the same groove depth and groove width. The sixth mounting groove 214 is type IV mounting groove 21 and has a groove width greater than the groove widths of the third mounting groove 211, the second and fourth mounting grooves 21, the fifth mounting groove 213, the seventh mounting groove 215 and the eighth mounting groove 216.

[0040] In an embodiment of the utility model, preferably, multiple groups of mounting grooves 21 can be set as annular grooves of different widths and depths and arranged in parallel on the outer wall surface of the piston 2, the third mounting groove 211, the fourth mounting groove 212, the fifth mounting groove 213, the sixth mounting groove 214, the seventh mounting groove 215 and the eighth mounting groove 216 can be arranged in sequence and the third mounting groove 211 can be a groove position close to one end of the oil chamber, and the eighth mounting groove 216 can be a groove position close to one end of the air chamber.

[0041] like Figure 1-4As shown, as a preferred embodiment of the utility model, the sealing member includes a third sealing ring, a fourth sealing ring, a fifth sealing ring, a sixth sealing ring, a seventh sealing ring and an eighth sealing ring, and the third sealing ring and the eighth sealing ring are respectively installed on the third mounting groove 211 and the sixth and eighth mounting grooves 21, and the third sealing ring and the eighth sealing ring are used to reduce the friction between the piston 2 and the cylinder 1, the fourth sealing ring is used to guide the infiltrated oil to flow into the oil chamber, the fifth sealing ring is used to block the infiltration of oil in the oil chamber, the seventh sealing ring is used to block the infiltration of gas in the air chamber, and the sixth sealing ring is provided with a double-layer sealing layer for blocking the oil in the oil chamber and the gas in the air chamber respectively.

[0042] In the embodiment of the utility model, preferably, the sealing member is provided with six groups of sealing rings of different materials with different functions. The functions of the third sealing ring and the eighth sealing ring are to reduce the friction between the piston 2 and the cylinder 1, and to have a certain wear resistance. Polytetrafluoroethylene, etc., which is an excellent wear-resistant material, can be selected. The third sealing ring is close to the oil cavity, and a sealing ring with a material having excellent oil resistance and wear resistance can be selected, which can be nitrile rubber, fluorine rubber, polyurethane, fluorosilicone rubber, etc. The eighth sealing ring is close to the air cavity, and a sealing ring with a material having excellent airtightness and high pressure resistance can be selected, which can be fluorine rubber, polytetrafluoroethylene, etc. The fourth sealing ring mainly plays a role in The fourth and fifth sealing rings, combined with their deeper groove depths, ultimately block the oil from penetrating into the air cavity. Sealing rings made of materials with good oil resistance and high pressure resistance and more stable performance can be selected. The sixth sealing ring is arranged as a double-layer sealing ring so as to simultaneously block the substances in the oil cavity and the air cavity from mixing into different cavities and affecting the use of the accumulator. The sixth and seventh sealing rings are mainly used to block the gas in the air cavity from entering. Their performance requirements require materials with good airtightness and high pressure resistance, and factors such as gas type, working temperature and pressure requirements also need to be considered.

[0043] like Figure 1-4 As shown, as a preferred embodiment of the utility model, the piston 2 is also provided with a plurality of guide grooves 22, and the guide grooves 22 are used to prevent the formation of an oil film between the piston 2 and the first end cover 11, and the guide grooves 22 are arranged on the annular protrusions of the first end face, and the groove surface of the guide grooves 22 is higher than the groove surface of the first positioning groove.

[0044] In an embodiment of the utility model, preferably, the guide groove 22 can be arranged as an irregular groove with a certain depth on the annular protrusion, and the length direction of the guide groove 22 is perpendicular to the central axis of the piston 2, and the two opposite side edges of the guide groove 22 intersect with the annular edge of the annular protrusion and the other two opposite side edges coincide with the annular edge.

[0045] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An accumulator with an anti-rotation installation, characterized in that: The anti-rotation mounted accumulator comprises: The cylinder comprises a first end cover, the first end cover is provided with a connecting portion and a mounting portion, the connecting portion is embedded in the cylinder, the mounting portion is provided with a first mounting hole and a second mounting hole, the first mounting hole is perpendicular to the cylinder, the first mounting hole is used for mounting the accumulator, and the second mounting hole is used for mounting the liquid inlet pipe to facilitate the oil to enter and exit the cylinder; The piston is installed inside the cylinder so that an oil chamber and an air chamber are formed inside the cylinder.

2. The anti-rotationally mounted accumulator according to claim 1, characterized in that The cylinder body is cylindrical, and the first end cover and the second end cover are connected to the two ends of the cylinder body respectively. The inner wall of the cylinder body is provided with a first annular protrusion and a second annular protrusion, and a first annular mounting groove is provided on one side of the first annular protrusion. The first annular protrusion and the first annular mounting groove are used to position the first end cover, and a second annular mounting groove is provided on one side of the second annular protrusion. The second annular protrusion and the second annular mounting groove are used to position the second end cover.

3. The anti-rotationally mounted accumulator according to claim 2, characterized in that The first end cover is irregular in shape, the first end cover connecting part is columnar, the outer side surface of the first end cover connecting part is provided with a first mounting groove and a third annular protrusion, the first mounting groove is used to install the first sealing ring and cooperate with the first annular protrusion on the cylinder body to connect the first end cover to the cylinder body, and the third annular protrusion is embedded in the first annular mounting groove.

4. The anti-rotationally mounted accumulator according to claim 3, characterized in that The first end cover mounting portion is columnar and the outer diameter of the mounting portion is smaller than the outer diameter of the connecting portion. The second mounting hole is L-shaped. The second mounting hole is provided with a first port and a second port. The first port is located on the outer side of the mounting portion and is stepped. The first port is used to connect to the liquid inlet pipe. The second port is located on the bottom surface of the first end cover connecting portion. The second port is connected to the oil chamber inside the cylinder to facilitate the entry and exit of oil from the second port.

5. The anti-rotationally mounted accumulator according to claim 2, characterized in that A second mounting groove and a fourth annular protrusion are provided on the outer side surface of the second end cover. The second mounting groove is used to install a second sealing ring and cooperates with the second annular protrusion on the cylinder body to connect the second end cover to the cylinder body. The fourth annular protrusion is embedded in the second annular mounting groove. An air hole is provided at the center position of the second end cover, and an air valve is installed on the air hole. A protective cap is provided on the air valve, and the protective cap is used to prevent impurities from entering the air cavity.

6. The anti-rotationally mounted accumulator according to claim 1, characterized in that The piston is arranged as a columnar structure, and the piston is provided with a plurality of groups of mounting grooves; the mounting grooves include one type of mounting grooves, two type of mounting grooves, three type of mounting grooves and four type of mounting grooves, the one type of mounting grooves are used to install a buffer seal that reduces the friction between the piston and the cylinder body, the two type of mounting grooves are arranged in two groups, the two type of mounting grooves are used to install a one-way seal that prevents leakage of hydraulic oil or gas, the three type of mounting grooves are used to install a drainage seal that guides the oil to flow into the oil chamber, the four type of mounting grooves are used to install a bidirectional seal, and the bidirectional seal is used to install to prevent leakage of oil and gas.

7. The anti-rotationally mounted accumulator according to claim 6, characterized in that The mounting groove is annular and is arranged in six groups. The six groups of mounting grooves are arranged side by side on the side wall of the piston and are respectively the third mounting groove, the fourth mounting groove, the fifth mounting groove, the sixth mounting groove, the seventh mounting groove and the eighth mounting groove. The third mounting groove and the eighth mounting groove are type I mounting grooves and have the same groove depth and groove width. The fourth mounting groove is type III mounting groove and has a groove depth greater than the groove depths of the third mounting groove, the fifth mounting groove, the sixth mounting groove, the seventh mounting groove and the eighth mounting groove. The fifth mounting groove and the seventh mounting groove are type II mounting grooves and have the same groove depth and groove width. The sixth mounting groove is type IV mounting groove and has a groove width greater than the groove widths of the third mounting groove, the twenty-fourth mounting groove, the fifth mounting groove, the seventh mounting groove and the eighth mounting groove.

8. The anti-rotationally mounted accumulator according to claim 7, characterized in that The sealing member comprises a third sealing ring, a fourth sealing ring, a fifth sealing ring, a sixth sealing ring, a seventh sealing ring and an eighth sealing ring. The third sealing ring and the eighth sealing ring are respectively mounted on the third mounting groove and the sixth and eighth mounting grooves. The third sealing ring and the eighth sealing ring are used to reduce the friction between the piston and the cylinder body. The fourth sealing ring is used to guide the infiltrated oil to flow into the oil chamber. The fifth sealing ring is used to block the infiltration of oil from the oil chamber. The seventh sealing ring is used to block the infiltration of gas from the air chamber. The sixth sealing ring is provided with a double-layer sealing layer for respectively blocking the oil in the oil chamber and the gas in the air chamber.

9. The anti-rotationally mounted accumulator according to claim 6, characterized in that The piston is also provided with a plurality of guide grooves, and the guide grooves are used to prevent the formation of an oil film between the piston and the first end cover. The guide grooves are provided on the annular protrusions on the first end surface, and the guide groove surfaces are higher than the first positioning groove surfaces.

Images