Explosion-proof hydraulic cylinder guide frame and assembly method thereof

Abstract

The present invention discloses an explosion-proof hydraulic cylinder guide frame and an assembly method thereof, which relates to the technical field of hydraulic cylinders. The key points of the technical solution include a positioning platform, the upper surface of which is rotatably connected with a rotating bead, the upper surface of which is provided with a covering frame, a hydraulic cylinder body is provided inside the covering frame, the output rod of the hydraulic cylinder body extends out of the upper surface of the covering frame, the surface of the covering frame is sleeved with an auxiliary support member for providing direction guidance for the hydraulic cylinder body, and the end of the auxiliary support member away from the covering frame is rotatably connected to the upper surface of the positioning platform; the covering frame includes an annular separation support frame, and the annular separation support frame is sequentially provided with a plurality of connecting rings that circumferentially penetrate the inside of the annular separation support frame from top to bottom. The invention can adjust the direction of the hydraulic cylinder body, and can provide good explosion-proof and flame-retardant effects for the hydraulic cylinder body when it ruptures and releases pressure, thereby improving the application prospects of the frame.

Description

Technical Field

[0001] The present invention relates to the technical field of hydraulic cylinders, and more specifically to an explosion-proof hydraulic cylinder guide frame and an assembling method thereof. Background Art

[0002] The hydraulic cylinder is a hydraulic actuator that converts hydraulic energy into mechanical energy and performs linear reciprocating motion (or swinging motion). It has a simple structure and reliable operation. When using it to achieve reciprocating motion, the deceleration device can be eliminated, and there is no transmission gap and the movement is smooth. Therefore, it is widely used in the hydraulic systems of various machines.

[0003] The output force of the hydraulic cylinder is proportional to the effective area of ​​the piston and the pressure difference on both sides; the hydraulic cylinder is basically composed of a cylinder barrel and a cylinder head, a piston and a piston rod, a sealing device, a buffer device and an exhaust device. The buffer device and the exhaust device depend on the specific application occasion, and other devices are indispensable.

[0004] The inside of the hydraulic cylinder stores an oil-driven structure for providing a better driving effect. However, when the pressure is too high, it may explode. Not only will it cause a fire due to internal oil leakage, but it will also cause damage to other components due to the explosion. Therefore, the present invention proposes an explosion-proof hydraulic cylinder guide frame and an assembly method to solve the problems raised in the above background technology. Summary of the invention

[0005] In order to solve the problems raised in the above background technology, the purpose of the present invention is to provide an explosion-proof hydraulic cylinder guide frame and an assembly method thereof, which has the advantages of providing cylinder direction guidance and explosion-proof protection.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] An explosion-proof hydraulic cylinder guide frame, comprising a positioning platform, a rotating bead is rotatably connected to the upper surface of the positioning platform, a covering frame is arranged on the upper surface of the rotating bead, a hydraulic cylinder body is arranged inside the covering frame, an output rod of the hydraulic cylinder body extends out of the upper surface of the covering frame, an auxiliary support member for providing direction guidance for the hydraulic cylinder body is sleeved on the surface of the covering frame, and an end of the auxiliary support member away from the covering frame is rotatably connected to the upper surface of the positioning platform;

[0008] The covering frame includes an annular separation support frame, which is sequentially provided with a plurality of connection rings circumferentially penetrating the interior of the annular separation support frame from top to bottom. A positioning cover is snap-connected to the upper surface of the annular separation support frame, and the lower surface of the positioning cover is in contact with the hydraulic cylinder body.

[0009] As a further solution of the present invention: the rotating bead includes an outer shell, the interior of the outer shell is filled with a first filling liquid and a second filling liquid, and an isolation membrane is provided on one side adjacent to the first filling liquid and the second filling liquid.

[0010] As a further solution of the present invention: a plurality of balls are arranged on the lower surface of the outer shell, and the lower surface of the outer shell is engaged with the plurality of balls, and the plurality of balls are rotatably connected to the upper surface of the positioning platform.

[0011] As a further solution of the present invention: the auxiliary support member includes a first rotating shaft and a positioning ring, the lower surface of the first rotating shaft is rotatably connected to the upper surface of the positioning platform, the rotating axis of the first rotating shaft is hinged with an electric push rod, the end of the electric push rod away from the first rotating shaft is hinged with a second rotating shaft, and the second rotating shaft is hinged to the surface of the positioning ring.

[0012] As a further solution of the present invention: there are three electric push rods, and the three electric push rods are arranged in a circle above the positioning platform.

[0013] As a further solution of the present invention: there are four positioning rings, which are distributed on the surface of the annular separation support frame from top to bottom, and a plurality of connecting rods are fixedly connected between two adjacent positioning rings.

[0014] As a further solution of the present invention: the plurality of connecting rings are composed of three types: a soft rubber ring, a hard rubber ring, and a hard thickened rubber ring, and the three different material ring bodies in the plurality of connecting rings are spaced apart from top to bottom.

[0015] As a further solution of the present invention: the first filling liquid is made of a mixed solution of sodium bicarbonate and a foaming agent, and the second filling liquid is made of an aqueous solution of aluminum sulfate.

[0016] As a further solution of the present invention: a plurality of connecting blocks are arranged in a circle at the bottom of the positioning platform.

[0017] The beneficial effects of the present invention are as follows: the entire frame allows the hydraulic cylinder body to form a guide direction of the hydraulic cylinder body to be changed as needed after the electric push rod in the corresponding direction is extended and retracted, and the design of the rotating bead and the covering frame allows the covering frame to achieve universal rotation. Inside the covering frame, a plurality of connecting rings made of three different materials are used to connect the annular separation support frame to position the hydraulic cylinder body. When the hydraulic cylinder body is damaged or ruptured, a three-layer buffer can be formed. In conjunction with the positioning ring, a better protective effect can be formed, so that the frame can not only adjust the direction of the hydraulic cylinder body, but also provide good explosion-proof and flame-retardant effects for the hydraulic cylinder body when it ruptures and releases pressure, thereby improving the application prospects of the frame.

[0018] As a further solution of the present invention: the assembly method of the explosion-proof hydraulic cylinder guide frame comprises the following steps:

[0019] Step (A) combines the hydraulic cylinder body with the covering frame, and the steps include:

[0020] (Aa) Remove the positioning cover and place the hydraulic cylinder body from top to bottom into the annular separation support frame;

[0021] (Ab) Adjust the main body of the hydraulic cylinder so that the telescopic rod of the main body of the hydraulic cylinder is retracted to the limit position;

[0022] (Ac) Insert the positioning cover onto the top of the annular separation support frame;

[0023] Step (B) The hydraulic cylinder body, the covering frame and the auxiliary support are combined, and the steps include:

[0024] (Ba) connecting the bottoms of the three electric push rods to the first rotating shaft, and connecting the upper surfaces to the second rotating shaft, and then fixing the three second rotating shafts on the positioning rings whose limits need to be adjusted;

[0025] (Bb) connecting and positioning a plurality of positioning rings using a connecting rod;

[0026] (Bc) Insert the main body of the hydraulic cylinder from top to bottom into a cylinder consisting of multiple positioning rings and connecting rods;

[0027] Step (C) establishes a connection between the coating frame, the rotating ball and the positioning platform, and the process is to connect the lower surface of the annular separation support frame with the outer shell, ensure that the vertical height of the annular separation support frame and the positioning platform is greater than one-fourth of the outer diameter of the outer shell, fill a plurality of balls above the positioning platform, and then insert the outer shell filled with the first filling liquid, the second filling liquid and the isolation membrane into the balls.

[0028] Step (D) When the hydraulic cylinder body explodes due to excessive pressure, the protective steps include:

[0029] (Da) The main body of the hydraulic cylinder releases air pressure from the inside out, because the annular separation support frame is connected by four arc plates with a connecting ring, and there is a gap between two adjacent arc plates for initial pressure relief;

[0030] (Db) After the annular separation support frame is subjected to force and explodes, the multiple connection rings break in the order of soft rubber ring, hard rubber ring, and hard thickened rubber ring, forming a three-layer buffer;

[0031] (Dc) Before the outer shell is subjected to pressure sufficient to destroy the structure of the outer shell, the isolation membrane will be ruptured under pressure, causing the first filling fluid and the second filling fluid to mix and release a large amount of carbon dioxide, thereby protecting the oil from exploding and leaking from the main body of the hydraulic cylinder;

[0032] (Dd) A protective ring composed of multiple positioning rings and connecting rods, which maintains the external shape of the annular separation support frame after the annular separation support frame is impacted and prevents the annular separation support frame from collapsing.

[0033] Compared with the prior art, the assembly method of the present invention has the beneficial effects of being convenient and quick to operate and assembling, not requiring any screw positioning, and being able to provide an effective explosion-proof effect for the hydraulic cylinder body. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0035] Figure 2 It is a front cross-sectional structural schematic diagram of the present invention;

[0036] Figure 3 It is a bottom view structural schematic diagram of the present invention;

[0037] Figure 4 It is a schematic diagram of a top cross-sectional structure of a covering frame of the present invention;

[0038] Figure 5 For the present invention Figure 2 A schematic diagram of the enlarged structure at A in the middle;

[0039] Figure 6 For the present invention Figure 2 Schematic diagram of the enlarged structure at B.

[0040] In the figure: 1. positioning table; 2. auxiliary support member; 201. first rotating shaft; 202. electric push rod; 203. second rotating shaft; 204. positioning ring; 205. connecting rod; 3. covering frame; 301. annular separation support frame; 302. positioning cover; 303. connecting ring; 4. hydraulic cylinder body; 5. connecting block; 6. rotating ball; 601. outer shell; 602. first filling liquid; 603. second filling liquid; 604. ball; 605. isolation membrane. DETAILED DESCRIPTION

[0041] The present invention will be further described in detail below with reference to the accompanying drawings.

[0042] See also Figures 1 to 6, an explosion-proof hydraulic cylinder guide frame, comprising a positioning platform 1, a rotating bead 6 is rotatably connected to the upper surface of the positioning platform 1, a covering frame 3 is arranged on the upper surface of the rotating bead 6, a hydraulic cylinder body 4 is arranged inside the covering frame 3, an output rod of the hydraulic cylinder body 4 extends out of the upper surface of the covering frame 3, an auxiliary support member 2 for providing direction guidance for the hydraulic cylinder body 4 is sleeved on the surface of the covering frame 3, and an end of the auxiliary support member 2 away from the covering frame 3 is rotatably connected to the upper surface of the positioning platform 1;

[0043] The covering frame 3 includes an annular separation support frame 301, which is provided with multiple connecting rings 303 circumferentially penetrating the inside of the annular separation support frame 301 from top to bottom. The upper surface of the annular separation support frame 301 is snap-connected with a positioning cover 302, and the lower surface of the positioning cover 302 is in contact with the hydraulic cylinder body 4.

[0044] exist Figure 1 In the figure, the rotating bead 6 includes an outer shell 601, the interior of the outer shell 601 is filled with a first filling liquid 602 and a second filling liquid 603, and an isolation membrane 605 is provided on the side adjacent to the first filling liquid 602 and the second filling liquid 603. The rotating bead 6 can provide a connection between the coating frame 3 and the positioning platform 1, while allowing the coating frame 3 to rotate freely as needed with the cooperation of the auxiliary support 2, and the interior of the rotating bead 6 is also provided with a first filling liquid 602 and a second filling liquid 603 that are flame retardant.

[0045] exist Figure 1 In the figure, a plurality of balls 604 are arranged on the lower surface of the outer shell 601, and the lower surface of the outer shell 601 is engaged with the plurality of balls 604, and the plurality of balls 604 are rotatably connected to the upper surface of the positioning platform 1. The plurality of balls 604 can enable the outer shell 601 to be above the positioning platform 1.

[0046] exist Figure 3 In the figure, the auxiliary support member 2 includes a first rotating shaft 201 and a positioning ring 204. The lower surface of the first rotating shaft 201 is rotatably connected to the upper surface of the positioning platform 1. The rotating axis of the first rotating shaft 201 is hinged with an electric push rod 202. The end of the electric push rod 202 away from the first rotating shaft 201 is hinged with a second rotating shaft 203. The second rotating shaft 203 is hinged to the surface of the positioning ring 204. The auxiliary support member 2 is provided to be connected to the surface of the covering frame 3, thereby providing directional guidance for the covering frame 3.

[0047] exist Figure 2 In the embodiment, there are three electric push rods 202 , and the three electric push rods 202 are arranged in a circle above the positioning platform 1 . This arrangement enables the three electric push rods 202 to cooperate with the rotating beads 6 for multi-angle adjustment.

[0048] exist Figure 3There are four positioning rings 204, which are distributed on the surface of the annular separation support frame 301 from top to bottom, and a plurality of connecting rods 205 are fixedly connected between two adjacent positioning rings 204. The four positioning rings 204 are connected by the connecting rods 205 to form a stable protective layer.

[0049] exist Figure 2 In the figure, the multiple connecting rings 303 are composed of a soft rubber ring, a hard rubber ring, and a hard thickened rubber ring, and the three different material rings in the multiple connecting rings 303 are spaced from top to bottom. After this arrangement, the shape of the covering frame 3 will be stabilized to prevent splashing when the hydraulic cylinder body 4 explodes.

[0050] exist Figure 2 In the embodiment, the first filling liquid 602 is made of a mixed solution of sodium bicarbonate and a foaming agent, and the second filling liquid 603 is made of an aqueous solution of aluminum sulfate. By using the principle of a foam fire extinguisher, a large amount of carbon dioxide foam is released when the outer shell 601 is subjected to a huge impact to prevent the internal oil from catching fire.

[0051] exist Figure 1 In the figure, a plurality of connection blocks 5 are arranged in a circle at the bottom of the positioning platform 1, and the plurality of connection blocks 5 can establish connection with other devices.

[0052] The beneficial effects of the present invention are as follows: the entire frame allows the hydraulic cylinder body 4 to form a guide direction of the hydraulic cylinder body 4 after the electric push rod 202 in the corresponding direction is extended and retracted as needed, and the design of the rotating bead 6 and the covering frame 3 allows the covering frame 3 to achieve universal rotation. Inside the covering frame 3, multiple connecting rings 303 made of three different materials are used to connect the annular separation support frame 301 to position the hydraulic cylinder body 4. When the hydraulic cylinder body 4 is damaged or ruptured, a three-layer buffer can be formed. In conjunction with the positioning ring 204, a better protective effect can be formed, so that the frame can not only adjust the direction of the hydraulic cylinder body 4, but also provide good explosion-proof and flame-retardant effects for the hydraulic cylinder body 4 when it ruptures and releases pressure, thereby improving the application prospects of the frame.

[0053] The assembly method of the explosion-proof hydraulic cylinder guide frame includes the following steps:

[0054] Step A, combining the hydraulic cylinder body 4 and the covering frame 3, the steps include:

[0055] Aa. Remove the positioning cover 302 and place the hydraulic cylinder body 4 into the annular separation support frame 301 from top to bottom;

[0056] Ab. Adjust the hydraulic cylinder body 4 so that the telescopic rod of the hydraulic cylinder body 4 is at the limit position;

[0057] Ac, snap the positioning cover 302 into place above the annular separation support frame 301;

[0058] Step B, the hydraulic cylinder body 4, the covering frame 3 and the auxiliary support member 2 are combined, and the steps include:

[0059] Ba. Connect the bottoms of the three electric push rods 202 to the first rotating shaft 201, and connect the upper surfaces to the second rotating shaft 203, and then fix the three second rotating shafts 203 on the positioning rings 204 whose limits need to be adjusted;

[0060] Bb, connecting and positioning multiple positioning rings 204 using connecting rods 205;

[0061] Bc, insert the hydraulic cylinder body 4 from top to bottom into the cylinder body composed of multiple positioning rings 204 and connecting rods 205;

[0062] Step C, establish the connection between the coating frame 3, the rotating ball 6 and the positioning platform 1, the process is to connect the lower surface of the annular separation support frame 301 with the outer shell 601, ensure that the vertical height of the annular separation support frame 301 and the positioning platform 1 is greater than one-fourth of the outer diameter of the outer shell 601, fill a plurality of balls 604 on the top of the positioning platform 1, and then insert the outer shell 601 filled with the first filling liquid 602, the second filling liquid 603 and the isolation membrane 605 into the balls 604.

[0063] Step D: When the hydraulic cylinder body 4 explodes due to excessive pressure, the protection steps include:

[0064] Da, the hydraulic cylinder body 4 releases the air pressure from the inside out, because the annular separation support frame 301 is connected by four arc-shaped plates and the connecting ring 303, and there is a gap between two adjacent arc-shaped plates, so as to perform preliminary pressure relief;

[0065] Db, after the annular separation support frame 301 is forced to explode, the multiple connection rings 303 are broken in the order of soft rubber ring, hard rubber ring, and hard thickened rubber ring, forming a three-layer buffer;

[0066] Dc, before the internal pressure of the outer shell 601 is enough to destroy the structure of the outer shell 601, the isolation membrane 605 will be ruptured by the pressure, so that the first filling liquid 602 and the second filling liquid 603 are mixed to release a large amount of carbon dioxide, which protects the oil leaked from the explosion inside the hydraulic cylinder body 4;

[0067] A protective ring composed of Dd, multiple positioning rings 204, and connecting rods 205 maintains the external shape of the annular separation support frame 301 after the annular separation support frame 301 is impacted, preventing the annular separation support frame 301 from collapsing.

[0068] Compared with the prior art, the assembly method of the present invention has the following beneficial effects: the assembly operation is convenient and quick, no screw positioning is required, and effective explosion-proof effect can be provided for the hydraulic cylinder body 4 .

[0069] The above are only preferred specific implementation modes of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solutions and inventive concepts of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An explosion-proof hydraulic cylinder guide frame, characterized in that: The invention comprises a positioning platform (1), the upper surface of which is rotatably connected to a rotating bead (6), the upper surface of which is provided with a covering frame (3), a hydraulic cylinder body (4) being provided inside the covering frame (3), an output rod of the hydraulic cylinder body (4) extending out of the upper surface of the covering frame (3), an auxiliary support member (2) for providing directional guidance for the hydraulic cylinder body (4) being sleeved on the surface of the covering frame (3), and an end of the auxiliary support member (2) away from the covering frame (3) being rotatably connected to the upper surface of the positioning platform (1); The covering frame (3) comprises an annular separation support frame (301), the annular separation support frame (301) being provided with a plurality of connection rings (303) which circumferentially penetrate the interior of the annular separation support frame (301) in sequence from top to bottom, the upper surface of the annular separation support frame (301) being snap-connected with a positioning cover (302), and the lower surface of the positioning cover (302) being in contact with the hydraulic cylinder body (4); The rotating bead (6) comprises an outer shell (601), the interior of the outer shell (601) is filled with a first filling liquid (602) and a second filling liquid (603), and an isolation membrane (605) is provided on one side adjacent to the first filling liquid (602) and the second filling liquid (603); A plurality of rolling balls (604) are arranged on the lower surface of the outer shell (601), and the lower surface of the outer shell (601) is engaged with the plurality of rolling balls (604), and the plurality of rolling balls (604) are all rotatably connected to the upper surface of the positioning platform (1).

2. The explosion-proof hydraulic cylinder guide frame according to claim 1, characterized in that: The auxiliary support member (2) comprises a first rotating shaft (201) and a positioning ring (204); the lower surface of the first rotating shaft (201) is rotatably connected to the upper surface of the positioning platform (1); the rotating axis of the first rotating shaft (201) is hinged with an electric push rod (202); one end of the electric push rod (202) away from the first rotating shaft (201) is hinged with a second rotating shaft (203); and the second rotating shaft (203) is hinged with the surface of the positioning ring (204).

3. The explosion-proof hydraulic cylinder guide frame according to claim 2, characterized in that: There are three electric push rods (202), and the three electric push rods (202) are arranged in a circle above the positioning platform (1).

4. The explosion-proof hydraulic cylinder guide frame according to claim 3, characterized in that: There are four positioning rings (204) distributed in sequence from top to bottom on the surface of the annular separation support frame (301), and a plurality of connecting rods (205) are fixedly connected between two adjacent positioning rings (204).

5. The explosion-proof hydraulic cylinder guide frame according to claim 1, characterized in that: The plurality of connecting rings (303) are composed of three types: a soft rubber ring, a hard rubber ring, and a hard thickened rubber ring, and the three types of ring bodies of different materials in the plurality of connecting rings (303) are distributed at intervals from top to bottom.

6. The explosion-proof hydraulic cylinder guide frame according to claim 1, characterized in that: The first filling liquid (602) is made of a mixed solution of sodium bicarbonate and a foaming agent, and the second filling liquid (603) is made of an aqueous solution of aluminum sulfate.

7. The explosion-proof hydraulic cylinder guide frame according to claim 1, characterized in that: The bottom of the positioning platform (1) has a plurality of connection blocks (5) arranged in a circular pattern.

8. The method for assembling the explosion-proof hydraulic cylinder guide frame according to any one of claims 1 to 7, characterized in that: The assembly method comprises the following steps: Step (A) combines the hydraulic cylinder body (4) with the covering frame (3), and the steps include: (Aa) Remove the positioning cover (302) and place the hydraulic cylinder body (4) from top to bottom into the annular separation support frame (301); (Ab) adjusting the hydraulic cylinder body (4) so ​​that the telescopic rod of the hydraulic cylinder body (4) is retracted to the limit position; (Ac) snapping the positioning cover (302) onto the top of the annular separation support frame (301); Step (B) The hydraulic cylinder body (4), the covering frame (3) and the auxiliary support member (2) are combined, and the steps include: (Ba) connecting the bottoms of the three electric push rods (202) to the first rotating shaft (201), and connecting the upper surfaces to the second rotating shaft (203), and then fixing the three second rotating shafts (203) on the positioning rings (204) whose limits need to be adjusted; (Bb) connecting and positioning the plurality of positioning rings (204) using a connecting rod (205); (Bc) inserting the hydraulic cylinder body (4) from top to bottom into a cylinder body composed of a plurality of positioning rings (204) and connecting rods (205); Step (C) establishes a connection between the coating frame (3), the rotating ball (6) and the positioning platform (1), wherein the process comprises connecting the lower surface of the annular separation support frame (301) to the outer shell (601), ensuring that the vertical height between the annular separation support frame (301) and the positioning platform (1) is greater than one quarter of the outer diameter of the outer shell (601), filling a plurality of balls (604) above the positioning platform (1), and then inserting the outer shell (601) filled with the first filling liquid (602), the second filling liquid (603) and the isolation membrane (605) into the balls (604); Step (D) When the hydraulic cylinder body (4) explodes due to excessive pressure, the protective steps include: (Da) The hydraulic cylinder body (4) releases air pressure from the inside out, because the annular separation support frame (301) is connected by four arc-shaped plates and a connecting ring (303), and there is a gap between two adjacent arc-shaped plates, so that initial pressure relief is performed; (Db) After the annular separation support frame (301) is subjected to force and explodes, the multiple connection rings (303) break in the order of soft rubber ring, hard rubber ring, and hard thickened rubber ring, thereby forming a three-layer buffer; (Dc) Before the outer shell (601) is subjected to pressure sufficient to destroy the structure of the outer shell (601), the isolation membrane (605) will be ruptured under pressure, causing the first filling liquid (602) and the second filling liquid (603) to mix and release a large amount of carbon dioxide, thereby protecting the oil from exploding and leaking from the hydraulic cylinder body (4); (Dd) A protective ring composed of a plurality of positioning rings (204) and connecting rods (205) maintains the outer shape of the annular separation support frame (301) after the annular separation support frame (301) is impacted, thereby preventing the annular separation support frame (301) from collapsing.

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