Hydraulic cylinder sealing assembly dismounting device and application method thereof

Abstract

The invention discloses a hydraulic cylinder sealing assembly dismounting device and an application method thereof. The hydraulic cylinder sealing assembly dismounting device comprises a base and a fixed end fixed to the base, and a dismounting assembly is arranged on the side, away from the fixed end, of the base; the dismounting assembly comprises a positioning end and a positioning sleeve movably connected with the positioning end, the positioning sleeve is provided with a positioning channel matched with the sealing end face of the hydraulic cylinder, and the positioning sleeve can rotate by 360 degrees along the positioning end. A positioning channel formed in the positioning sleeve is matched with a threaded hole channel matched with the sealing end face of the hydraulic cylinder, the upper end of the positioning end is of a hollow cylindrical structure, the lower end of the positioning end is of a hollow square sleeve body structure matched with a hydraulic cylinder body, axial drawing force is converted into circumferential rotating force, and impact damage is avoided.

Description

Technical Field

[0001] This invention belongs to the field of hydraulic equipment maintenance technology, specifically relating to a hydraulic cylinder sealing assembly disassembly device and its application method. Background Technology

[0002] During the maintenance of hydraulic cylinders, sealing components (especially circular glands with deep threads) are traditionally disassembled using a flat chisel impact method due to their tight fit and large thread depth. This method has three major drawbacks: (1) It requires repeated tapping along the circumference, which takes up to several hours. (2) The impact force can easily cause deformation of the gland or damage to the threads, with a failure rate of over 60%. (3) There is a safety hazard of tool slippage and injury.

[0003] Existing solutions have limitations: there are no dedicated disassembly tools on the market, conventional pullers cannot be adapted to deep hole thread structures, and customized tools are expensive and have poor versatility.

[0004] In view of the above factors, a hydraulic cylinder sealing assembly disassembly device and its application method are provided, which is suitable for the safe disassembly of tightly fitted deep thread sealing glands, converting axial pull-out force into circumferential rotational force to avoid impact damage. Summary of the Invention

[0005] The purpose of this invention is to provide a hydraulic cylinder sealing assembly disassembly device and its application method to solve the problems mentioned in the background art.

[0006] The objective of this invention is achieved through the following technical solution: a hydraulic cylinder sealing assembly disassembly device, comprising a base and a fixed end fixed on the base, wherein a disassembly assembly is disposed on the side of the base away from the fixed end;

[0007] The disassembly assembly includes a positioning end and a positioning sleeve movably connected to the positioning end. The positioning sleeve is provided with a positioning channel that mates with the sealing end face of the hydraulic cylinder.

[0008] The positioning sleeve can rotate 360 ​​degrees along the positioning end, and the positioning channel provided on the positioning sleeve is engaged with the threaded channel that mates with the sealing end face of the hydraulic cylinder.

[0009] Furthermore, the lower end of the positioning end is a hollow square sleeve structure that mates with the cylinder body of the hydraulic cylinder.

[0010] Furthermore, a disassembly wrench is detachably connected to the end face of the positioning sleeve. The disassembly wrench includes a fixing part, which is a hollow cylindrical structure of the same size as the positioning sleeve. Three-point components are evenly distributed along the circumference of the fixing part, and the three-point components are in contact with the hydraulic cylinder shaft.

[0011] Furthermore, the detachable connection between the positioning sleeve and the disassembly wrench is a snap-fit ​​connection. The end face of the positioning sleeve is provided with a positioning groove along the circumference, and the bottom of the fixed part of the disassembly wrench is provided with a positioning groove block that cooperates with the positioning groove.

[0012] Furthermore, the three-point assembly includes a first contact rod, a second contact rod, and a third contact rod, wherein the ends of the first contact rod, the second contact rod, and the third contact rod have arc-shaped contact surfaces with the hydraulic cylinder shaft.

[0013] Furthermore, the three-point assembly is in contact with the hydraulic cylinder shaft but is not fixed, and the three-point assembly can rotate along the hydraulic cylinder shaft;

[0014] In the three-point assembly, any one of the first contact rod, the second contact rod, and the third contact rod is a long rod, and the long rod is a telescopic rod structure.

[0015] Furthermore, the first contact rod, the second contact rod, and the third contact rod in the three-point assembly are threadedly connected to the fixing part.

[0016] Furthermore, the disassembly assembly includes a support body fixedly connected to the base, a support frame movably connected to the support body, and the support frame fixedly connected to the positioning end of the disassembly assembly.

[0017] A method for applying a hydraulic cylinder sealing assembly disassembly device includes the following steps;

[0018] The hydraulic cylinder is placed into the fixed end. The hydraulic cylinder is a gate cylinder. When disassembling the hydraulic cylinder sealing cover, the hydraulic cylinder is installed in the fixed end by plugging it in. The fixed end is a rectangular channel that matches the shape of the hydraulic cylinder. A circular channel with a central hole is provided at the bottom of the rectangular channel.

[0019] The process involves rotating the support frame to align the positioning end with the upper end of the hydraulic cylinder, aligning the positioning sleeve with the sealing end face of the hydraulic cylinder, installing bolts in the positioning channel of the positioning sleeve to align with the threaded holes of the sealing end face of the hydraulic cylinder, allowing the positioning sleeve to rotate 360 ​​degrees along the positioning end, and disassembling the cylinder sealing cover by aligning the positioning groove of the fixing part on the disassembly wrench with the positioning groove block and rotating the long rod in the three-point assembly to disassemble the cylinder sealing cover.

[0020] The fixing part has three-point components evenly distributed along its circumference. These three-point components contact the hydraulic cylinder shaft to ensure its working stability.

[0021] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0022] This invention is applicable to the safe disassembly of tightly fitted deep-threaded sealing glands, converting axial pull-out force into circumferential rotational force to avoid impact damage. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall connection of the present invention;

[0024] Figure 2 This is a schematic diagram of the positioning sleeve of the present invention;

[0025] Figure 3 This is a plan view of the disassembly wrench of the present invention;

[0026] Figure 4 This is a rear view schematic diagram of the disassembly wrench of the present invention;

[0027] Figure 5 This is a schematic diagram of the cross-section of the disassembly wrench of the present invention. Detailed Implementation

[0028] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0029] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0030] In the description of this invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0031] like Figures 1-5 As shown, a hydraulic cylinder sealing assembly disassembly device includes a base 1 and a fixed end 2 fixed on the base 1, and a disassembly assembly 3 is provided on the side of the base 1 away from the fixed end 2;

[0032] The base 1 is fixed to the corresponding working position by bolts.

[0033] The disassembly assembly 3 includes a positioning end 4 and a positioning sleeve 5 movably connected to the positioning end 4. The positioning sleeve 5 is provided with a positioning channel 6 that cooperates with the sealing end face of the hydraulic cylinder.

[0034] The positioning sleeve 5 can rotate 360 ​​degrees along the positioning end 4, and the positioning channel 6 provided on the positioning sleeve 5 is engaged with the threaded channel that mates with the sealing end face of the hydraulic cylinder.

[0035] The positioning sleeve 5 is rotatably disposed at the end of the support frame 16, and the lower part of the support frame 16 is fixedly connected to the positioning end 4 of the disassembly assembly 3.

[0036] For ease of use, the lower end of the positioning end 4 is a hollow square sleeve structure that mates with the hydraulic cylinder body.

[0037] To facilitate the disassembly of the hydraulic cylinder cover by combining the positioning sleeve and the disassembly wrench 7 during use, the disassembly wrench 7 is detachably connected to the end face of the positioning sleeve 5. The disassembly wrench 7 includes a fixing part 8, which is a hollow cylindrical structure of the same size as the positioning sleeve 5. Three-point components 9 are evenly distributed along the circumference of the fixing part 8, and the three-point components 9 are in contact with the hydraulic cylinder shaft.

[0038] To facilitate disassembly and replacement of the disassembly wrench during use, the positioning sleeve 5 is a circular plate structure. The detachable connection between the positioning sleeve 5 and the disassembly wrench 7 is a snap-fit ​​connection. A positioning groove 10 is provided along the circumference on the end face of the positioning sleeve 5. A positioning block 11, which mates with the positioning groove 10, is provided at the bottom of the fixing part 8 on the disassembly wrench 7. The positioning groove is a circular groove structure, and the positioning block is a circular cylindrical structure that mates with the positioning groove. The positioning groove 10 and the positioning channel do not coincide.

[0039] To ensure overall stability during use, the three-point assembly 9 includes a first contact rod 12, a second contact rod 13, and a third contact rod 14. The ends of the first contact rod 12, the second contact rod 13, and the third contact rod 14 have arc-shaped contact surfaces with the hydraulic cylinder shaft.

[0040] The three-point assembly 9 is in contact with the hydraulic cylinder shaft but is not fixed, and the three-point assembly 9 can rotate along the hydraulic cylinder shaft.

[0041] In the three-point assembly 9, any one of the first contact rod 12, the second contact rod 13, and the third contact rod 14 is a long rod, and the long rod is a telescopic rod structure.

[0042] To facilitate adjustment or disassembly during use, the first contact rod 12, the second contact rod 13, and the third contact rod 14 in the three-point assembly 9 are threadedly connected to the fixing part 8.

[0043] To facilitate overall support during use, the disassembly assembly 3 includes a support body 15 fixedly connected to the base 1, and a support frame 16 movably connected to the support body 15. The support frame 16 is fixedly connected to the positioning end 4 of the disassembly assembly 3.

[0044] The support body 15 and the support frame 16 are connected by a plug-in connection, and the support frame 16 can rotate within the support body 15.

[0045] In use, the positioning end 4 on the support frame 16 cooperates with the hydraulic cylinder, and the positioning sleeve on the support frame cooperates with the sealing end face of the hydraulic cylinder and the positioning channel 6 is connected to the sealing cover of the hydraulic cylinder through the bolt. The positioning channel 6 adopts a countersunk hole structure. The end face of the positioning sleeve 5 is detachably connected to the disassembly wrench 7. The disassembly wrench 7 includes a fixing part 8, which is a hollow cylindrical structure of the same size as the positioning sleeve 5. Three-point components 9 are evenly distributed along the circumference of the fixing part 8, and the three-point components 9 are in contact with the hydraulic cylinder shaft.

[0046] In use, the long rod structure of the three-point component 9 is used to rotate the disassembly wrench, which drives the positioning sleeve 5 to rotate in conjunction with the hydraulic cylinder cover.

[0047] A method for applying a hydraulic cylinder sealing assembly disassembly device includes the following steps;

[0048] The hydraulic cylinder is placed into the fixed end. The hydraulic cylinder is a gate cylinder. When disassembling the hydraulic cylinder sealing cover, the hydraulic cylinder is installed in the fixed end by plugging it in. The fixed end is a rectangular channel that matches the shape of the hydraulic cylinder. A circular channel with a central hole is provided at the bottom of the rectangular channel.

[0049] The process involves rotating the support frame to align the positioning end with the upper end of the hydraulic cylinder, aligning the positioning sleeve with the sealing end face of the hydraulic cylinder, installing bolts in the positioning channel of the positioning sleeve to align with the threaded holes of the sealing end face of the hydraulic cylinder, allowing the positioning sleeve to rotate 360 ​​degrees along the positioning end, and disassembling the cylinder sealing cover by aligning the positioning groove of the fixing part on the disassembly wrench with the positioning groove block and rotating the long rod in the three-point assembly to disassemble the cylinder sealing cover.

[0050] The fixing part has three-point components evenly distributed along its circumference. These three-point components contact the hydraulic cylinder shaft to ensure its working stability.

[0051] The application of a hydraulic cylinder sealing component disassembly device enables the safe disassembly of a deep-threaded sealing gland that is tightly fitted to the hydraulic cylinder sealing component disassembly device, solving the problems of low disassembly efficiency, easy damage to components, and poor safety of the sealing component.

[0052] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0053] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A hydraulic cylinder sealing assembly disassembly device, characterized in that: It includes a base (1) and a fixed end (2) fixed on the base (1), and a disassembly assembly (3) is provided on the side of the base (1) away from the fixed end (2); The disassembly assembly (3) includes a positioning end (4) and a positioning sleeve (5) movably connected to the positioning end (4). The positioning sleeve (5) is provided with a positioning channel (6) that cooperates with the sealing end face of the hydraulic cylinder. The positioning sleeve (5) can rotate 360 ​​degrees along the positioning end (4), and the positioning channel (6) provided on the positioning sleeve (5) is engaged with the threaded hole that mates with the sealing end face of the hydraulic cylinder.

2. The hydraulic cylinder sealing assembly disassembly device according to claim 1, characterized in that: The lower end of the positioning end (4) is a hollow square sleeve structure that cooperates with the cylinder body of the hydraulic cylinder.

3. The hydraulic cylinder sealing assembly disassembly device according to claim 2, characterized in that: The end face of the positioning sleeve (5) is detachably connected to the disassembly wrench (7). The disassembly wrench (7) includes a fixing part (8), which is a hollow cylindrical structure of the same size as the positioning sleeve (5). Three-point components (9) are evenly distributed along the circumference of the fixing part (8), and the three-point components (9) are in contact with the hydraulic cylinder shaft.

4. The hydraulic cylinder sealing assembly disassembly device according to claim 3, characterized in that: The detachable connection between the positioning sleeve (5) and the disassembly wrench (7) is a snap-fit ​​connection. The end face of the positioning sleeve (5) is provided with a positioning groove (10) along the circumference. The bottom of the fixing part (8) on the disassembly wrench (7) is provided with a positioning groove block (11) that cooperates with the positioning groove (10).

5. The hydraulic cylinder sealing assembly disassembly device according to claim 4, characterized in that: The three-point assembly (9) includes a first contact rod (12), a second contact rod (13), and a third contact rod (14), wherein the ends of the first contact rod (12), the second contact rod (13), and the third contact rod (14) are arranged in an arc shape to contact the hydraulic cylinder shaft.

6. The hydraulic cylinder sealing assembly disassembly device according to claim 5, characterized in that: The three-point assembly (9) is in contact with the hydraulic cylinder shaft but is not fixed, and the three-point assembly (9) can rotate along the hydraulic cylinder shaft; In the three-point assembly (9), any one of the first contact rod (12), the second contact rod (13), and the third contact rod (14) is a long rod, and the long rod is a telescopic rod structure.

7. The hydraulic cylinder sealing assembly disassembly device according to claim 6, characterized in that: The first contact rod (12), the second contact rod (13), and the third contact rod (14) of the three-point assembly (9) are threadedly connected to the fixing part (8).

8. The hydraulic cylinder sealing assembly disassembly device according to claim 7, characterized in that: The disassembly assembly (3) includes a support body (15) fixedly connected to the base (1), and a support frame (16) is movably connected to the support body (15). The support frame (16) is fixedly connected to the positioning end (4) of the disassembly assembly (3).

9. A method for applying the hydraulic cylinder sealing assembly disassembly device according to claim 8, characterized in that: Includes the following steps; The hydraulic cylinder is placed into the fixed end. The hydraulic cylinder is a gate cylinder. When disassembling the hydraulic cylinder sealing cover, the hydraulic cylinder is installed in the fixed end by plugging it in. The fixed end is a rectangular channel that matches the shape of the hydraulic cylinder. A circular channel with a central hole is provided at the bottom of the rectangular channel. The process involves rotating the support frame to align the positioning end with the upper end of the hydraulic cylinder, aligning the positioning sleeve with the sealing end face of the hydraulic cylinder, installing bolts in the positioning channel of the positioning sleeve to align with the threaded holes of the sealing end face of the hydraulic cylinder, allowing the positioning sleeve to rotate 360 ​​degrees along the positioning end, and disassembling the cylinder sealing cover by aligning the positioning groove of the fixing part on the disassembly wrench with the positioning groove block and rotating the long rod in the three-point assembly to disassemble the cylinder sealing cover. The fixing part has three-point components evenly distributed along its circumference. These three-point components contact the hydraulic cylinder shaft to ensure its working stability.

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