Multifunctional integrated large guide rod oil storage type oil cylinder assembling and disassembling device

The modularly integrated multifunctional large guide rod oil storage cylinder assembly and disassembly device solves the problem of existing equipment requiring multiple devices to operate in coordination, and realizes the efficient assembly and disassembly of various types and specifications of oil cylinders on one device, improving the practicality and overall efficiency of the equipment.

CN115781586BActive Publication Date: 2026-03-24XCMG HYDRAULICS CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2022-12-07
Publication Date
2026-03-24

AI Technical Summary

Technical Problem

Existing equipment for assembling and disassembling large guide rod oil-storage cylinders requires multiple machines to operate in coordination, resulting in cumbersome operation, low efficiency, and large equipment footprint. It is impossible to meet the assembly and disassembly needs of various types and specifications on a single machine.

Method used

Adopting a modular integrated design, the device combines piston rod sub-assembly units, hydraulic cylinder assembly units, and guide rod assembly units to realize a multi-functional integrated large guide rod oil storage cylinder assembly and disassembly device, which has precise positioning, quick adjustment, and remote control operation functions.

Benefits of technology

It enables the assembly and disassembly of large guide rod oil storage cylinders of various types and specifications on a single machine, improving operational efficiency, reducing equipment costs and floor space, and is applicable to the assembly and disassembly of cylinders of various structural types.

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Abstract

The application discloses a multifunctional integrated large guide rod oil storage type oil cylinder assembling and disassembling device, and relates to the technical field of oil cylinder assembly, in particular to the multifunctional integrated large guide rod oil storage type oil cylinder assembling and disassembling device. The oil cylinder assembly unit comprises a first base, and the first base is provided with a cylinder locking and positioning tailstock, a first lifting support, a clamping and positioning blocking mechanism and a fourth lifting support. The piston rod subassembly unit comprises a second base, and the second base is provided with a second support and a front pushing mechanism. The guide rod assembling unit comprises a third base, and the third base is provided with a third lifting support and a rear pushing mechanism. The application adopts a unit design combination mode, can meet the process characteristic requirements of large guide rod oil storage type oil cylinder piston rod subassembly, oil cylinder assembly, guide rod assembling combination and disassembly on one device, is suitable for the assembling combination and disassembly of large guide rod oil storage type oil cylinders with various lengths, diameters and structural types, and improves labor efficiency.
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Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of hydraulic cylinders, and particularly relates to a multifunctional integrated large guide rod oil storage type oil cylinder assembling and disassembling device. BACKGROUND

[0002] There are many types of hydraulic oil cylinders in the engineering machinery industry, and the length and diameter specifications have a large range. The large guide rod oil storage type oil cylinder is a typical complex structure oil cylinder. In the assembling and disassembling operation process of the oil cylinder, the cylinder barrel, the piston rod, the guide rod, the guide sleeve and the piston support positioning are required, and the center height and horizontal position of the cylinder barrel, the piston rod, the guide rod, the guide sleeve and the piston need to be in an adjustable state to keep the cylinder barrel, the piston rod, the guide rod, the guide sleeve and the piston and other related assembling parts in the accurate assembling position. The oil cylinder assembling and disassembling equipment is required to have the functions of accurate positioning, quick adjustment, convenient operation and application to various specifications and types of oil cylinder products.

[0003] In the existing similar device, the equipment for assembling and disassembling the oil cylinder is a single function equipment for sub-assembly or final assembly, that is, the sub-assembly process is completed on one equipment, and the final assembly process is completed on another equipment. The guide rod assembly combination also needs manual assistance to complete the overall assembly of the oil cylinder. The overall rack of the equipment adopts a supporting mode of multiple roller brackets to support the cylinder barrel and the piston rod respectively. The middle fixed clamping mechanism is arranged for the guide sleeve and the piston clamping positioning. The guide rail type pushing tail seat is used for the assembly and disassembly of the oil cylinder. The length, diameter specifications and structures of the applicable oil cylinder are restricted by the equipment. The adjustment process is complicated. The piston rod, the cylinder barrel and the guide rod and other oil cylinder parts need to be hoisted and rotated among multiple types of equipment for sub-assembly, final assembly and guide rod assembly combination. That is, multiple types and specifications of equipment are required to meet the assembling and disassembling process of the large guide rod oil storage type oil cylinder. One equipment cannot meet the process characteristics of the assembling and disassembling of multiple types and specifications of oil cylinders. The assembling operation efficiency is low. The investment is large. The occupied area is large. SUMMARY

[0004] The purpose of the present application is to provide a multifunctional integrated large guide rod oil storage type oil cylinder assembling and disassembling device to meet the assembling and disassembling process requirements of various types and specifications of large guide rod oil storage type oil cylinder piston rods, oil cylinders and guide rod assembly.

[0005] The present application is implemented through the following technical scheme: a multifunctional integrated large guide rod oil storage type oil cylinder assembling and disassembling device, comprising a piston rod sub-assembly unit, an oil cylinder final assembly unit and a guide rod assembly unit arranged coaxially in sequence.

[0006] The oil cylinder assembly unit comprises a first base, a plurality of first lifting support seats for supporting the cylinder barrel are fixed in the middle of the first base, a cylinder barrel locking and positioning tailstock is installed on one end of the first base close to the guide rod assembly unit, a clamping and positioning blocking mechanism for clamping and positioning the guide sleeve and the piston is fixed on one end of the first base close to the piston rod subassembly unit, and a fourth lifting support seat for supporting the guide sleeve and the piston is fixed on one end of the first base close to the piston rod subassembly unit.

[0007] The piston rod subassembly unit comprises a second base, a plurality of second support seats for supporting the piston rod are slidingly installed on the second base, and a front pushing mechanism with a sliding self-locking structure is also slidingly installed on one end of the second base away from the oil cylinder assembly unit; a front pushing oil cylinder for pushing the piston rod is installed on the front pushing mechanism.

[0008] The guide rod assembly unit comprises a third base, a plurality of third lifting support seats for supporting the guide rod are slidingly installed on the third base, and a rear pushing mechanism with a sliding self-locking structure is also slidingly installed on one end of the guide rod assembly unit away from the oil cylinder assembly unit; a rear pushing oil cylinder for pushing the guide rod is installed on the rear pushing mechanism.

[0009] Further, a clamping groove matched with the tail of the oil cylinder is formed on the cylinder barrel locking and positioning tailstock, the cylinder barrel locking and positioning tailstock is slidingly connected with the first base, and a locking bolt is arranged between the cylinder barrel locking and positioning tailstock and the first base.

[0010] The first lifting support seat comprises a V-shaped support block and a base, the base is fixed on the first base, and a double-guide-column screw rod lifting device is connected between the V-shaped support block and the base.

[0011] The fourth lifting support seat comprises a V-shaped support block and a base, the base is fixed on the first base, and a double-guide-column screw rod lifting device is connected between the V-shaped support block and the base; the clamping and positioning blocking mechanism comprises a bidirectional screw rod rotatably installed on the base, and clamping plates are threadedly connected to both ends of the bidirectional screw rod.

[0012] A guide rail is fixed on the second base, and the second support seat and the front pushing mechanism are slidingly installed on the guide rail; the second support seat comprises a V-shaped support block and a base, the base is fixed on the first base, the V-shaped support block is fixed on the base, and a supporting roller is installed on the supporting surface of the V-shaped support block.

[0013] The front pushing mechanism comprises a base and a front lifting seat, the base and the front lifting seat are connected through a guide rod, a front lifting cylinder is connected between the base and the front lifting seat, and the front pushing oil cylinder is installed on the front lifting seat; a front hydraulic motor of the pneumatic locking type is installed on the base, a rack is fixed on the second base, a transmission gear meshing with the rack is fixedly connected to the output end of the front hydraulic motor.

[0014] The rear pushing mechanism is structurally symmetrical with the front pushing mechanism.

[0015] The third lifting support includes a roller and a base. The base is fixed on the third base, and a double guide column screw lifting device is connected between the roller and the base.

[0016] Compared with the prior art, the beneficial effects of the present invention are:

[0017] 1. This invention adopts a unit-based design and combination method, and applies modular integration technology to integrate multiple functional units into a complete device, providing a new design concept and device reference for the development of similar hydraulic cylinder assembly equipment;

[0018] 2. The present invention has a clear functional division, complete functions, and convenient adjustment functions, and is suitable for the assembly, combination and disassembly of large guide rod oil storage cylinders with various lengths and diameters and various structural types;

[0019] 3. This invention can meet the process characteristics requirements of performing multiple operations such as piston rod sub-assembly, cylinder assembly, guide rod assembly and disassembly of large guide rod oil storage cylinders on one machine, avoiding the cost waste caused by investing in multiple machines, effectively reducing the equipment footprint, and having high equipment practicality and overall efficiency.

[0020] 4. This invention can be operated remotely, which simplifies operation and facilitates precise motion control during equipment adjustment, cylinder assembly and disassembly. It enables one operator to complete the overall control of equipment adjustment, cylinder assembly and disassembly, thereby improving labor efficiency. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of the present invention;

[0022] Figure 2 This is a schematic diagram of the hydraulic cylinder assembly unit structure;

[0023] Figure 3 yes Figure 2 Enlarged view of point A in the middle;

[0024] Figure 4 This is a schematic diagram of the piston rod assembly unit structure;

[0025] Figure 5 yes Figure 4 Enlarged view of point B in the middle;

[0026] Figure 6 yes Figure 4 Enlarged view of point C in the middle;

[0027] Figure 7 This is a schematic diagram of the guide rod assembly unit structure.

[0028] In the figure: 1, the second base; 2, the front pushing mechanism; 2-1, the front lifting seat; 2-2, the front lifting cylinder; 2-3, the front hydraulic motor; 3, the front pushing cylinder; 4, the second support seat; 5, the guide rail; 6, the rack; 7, the fourth lifting support seat; 8, the clamping positioning blocking mechanism; 8-1, the bidirectional screw; 8-2, the clamping plate; 9, the first lifting support seat; 10, the first base; 11, the cylinder locking positioning tail seat; 12, the third base; 13, the rear pushing cylinder; 14, the rear pushing mechanism; 15, the third lifting support seat. DETAILED DESCRIPTION

[0029] The following is a specific embodiment of the present application, and the present application will be further described with reference to the accompanying drawings.

[0030] In combination Figure 1 As shown in the figure, a multifunctional integrated large guide rod oil storage type cylinder assembly and disassembly device, the piston rod subassembly unit, the cylinder assembly unit and the guide rod assembly unit are arranged in sequence on the same straight line.

[0031] In combination Figures 1 to 3 As shown in the figure, the cylinder assembly unit:

[0032] A plurality of first lifting support seats 9 for supporting the cylinder are fixed in the middle of the first base 10. The first lifting support seat 9 comprises a V-shaped support block and a base, the base is fixed on the first base 10, and a double guide column screw lifting device is connected between the V-shaped support block and the base, and the height of the V-shaped support block is adjusted through the double guide column screw lifting device.

[0033] The cylinder locking positioning tail seat 11 is slidably installed on one end of the first base 10 close to the guide rod assembly unit, and a clamping groove matched with the tail of the oil cylinder is formed on the cylinder locking positioning tail seat 11. Locking bolts are arranged between the locking positioning tail seat 11 and the first base 10. The cylinder locking positioning tail seat 11 can be adjusted in the axial direction to adapt to oil cylinders of different lengths, and the adjusted position is fixed by the locking bolts.

[0034] The first base 10 is fixed with the clamping positioning blocking mechanism 8 for clamping and positioning the guide sleeve and the piston, and the fourth lifting support seat 7 for supporting the guide sleeve and the piston at one end close to the piston rod subassembly unit. The fourth lifting support seat 7 comprises a V-shaped support block and a base, the base is fixed on the first base 10, and a double guide column screw lifting device is connected between the V-shaped support block and the base, and the height of the V-shaped support block is adjusted through the double guide column screw lifting device. The clamping positioning blocking mechanism 8 comprises a bidirectional screw 8-1 rotatably installed on the base, and the two ends of the bidirectional screw 8-1 are respectively connected with clamping plates 8-2 through threads.

[0035] In combination Figure 1 , Figures 4 to 6 As shown in the figure, the piston rod subassembly unit:

[0036] The second base 1 is fixed with the same direction guide rail 5 and rack 6, and the second support base 4 and the front pushing mechanism 2 are slidingly installed on the guide rail 5 of the second base 1. The second support base 4 comprises a V-shaped support block and a base, the base is fixed on the first base 10, and the V-shaped support block is fixed on the base. The supporting surface of the V-shaped support block is provided with a carrier roller, which facilitates the axial movement of the piston rod.

[0037] The front pushing mechanism 2 comprises a base and a front lifting seat 2-1, the base and the front lifting seat 2-1 are connected through a guide rod, and a front lifting cylinder 2-2 is connected between the base and the front lifting seat 2-1. The front pushing oil cylinder 3 is installed on the front lifting seat 2-1, and the height of the front pushing oil cylinder 3 can be adjusted through the front lifting cylinder 2-2. The base is provided with a front hydraulic motor 2-3 of a pneumatic locking type, the second base 1 is fixed with a rack 6, and the output end of the front hydraulic motor 2-3 is fixedly connected with a transmission gear which is in mesh with the rack 6.

[0038] Combining Figure 1 And 7 As shown in the figure, the guide rod assembly unit:

[0039] The third base 12 is also fixed with a guide rail 5 and a rack 6, and the third lifting support base 15 and the rear pushing oil cylinder 13 are slidingly installed on the guide rail 5 of the third base 12. The third lifting support base 15 comprises a carrier roller and a base, the base is fixed on the third base 12, and a double guide column screw rod lifting device is connected between the carrier roller and the base, and the height of the carrier roller can be adjusted through the double guide column screw rod lifting device. The rear pushing mechanism 14 is symmetrical with the front pushing mechanism 2, and the rear pushing mechanism 14 is provided with a rear pushing oil cylinder 13 for pushing the guide rod.

[0040] Working principle:

[0041] When the piston rod of the oil cylinder is disassembled,

[0042] The piston rod is placed on the second support base 4; the guide sleeve is first placed on the fourth lifting support base 7, the fourth lifting support base 7 is adjusted to keep the center height direction of the guide sleeve consistent with the center height of the piston rod, the clamping positioning blocking mechanism 8 is adjusted to keep the center left and right direction of the guide sleeve consistent with the center left and right of the piston rod; the front pushing oil cylinder 3 of the front pushing mechanism 2 pushes the piston rod and the guide sleeve to assemble and disassemble;

[0043] After the disassembly is completed, the front pushing mechanism 2 and the front pushing oil cylinder 3 retreat to the starting position, and the piston is placed on the fourth lifting support base 7, and the assembly and disassembly of the piston rod and the piston are completed according to the above steps.

[0044] When the oil cylinder is assembled,

[0045] Adjust the locking position of the tail seat 11 to the appropriate length, lock it, adjust the first lifting support seat 9 to the appropriate height, and place the cylinder on the first lifting support seat 9, keeping the center height of the cylinder and the center height of the piston rod consistent;

[0046] First, operate the front pushing mechanism 2 to lock the mechanism in the locked state when it is in the initial position. Then, operate the front pushing oil cylinder 3 on the front pushing mechanism 2 to push the piston rod to be assembled. After the front pushing oil cylinder 3 fully extends and pushes, it is retracted to the starting point of the stroke. At this time, the locking mechanism of the front hydraulic motor 2-3 of the front pushing mechanism 2 is in the unlocked state, and the front pushing mechanism 2 is quickly moved forward to the next locking position through the front hydraulic motor 2-3 and the gear rack transmission mechanism. Then, operate the front pushing oil cylinder 3 on the front pushing mechanism 2 to push the piston rod to be assembled. The above operations are alternately repeated to realize the step-by-step advancement of the assembly of the oil cylinder assembly and complete the assembly of the piston rod and the cylinder.

[0047] When assembling the guide rod combination,

[0048] Place the guide rod on the third lifting support seat 15, first move the rear pushing mechanism 14 to the appropriate assembly position and adjust the center height of the rear pushing oil cylinder 13 on the rear pushing mechanism 14 to the appropriate position, then adjust the third lifting support seat 15 to the appropriate height, keeping the center height of the guide rod consistent with the center height of the cylinder;

[0049] Operate the rear pushing mechanism 14 to lock the mechanism in the locked state when it is in the initial position. Then, operate the rear pushing oil cylinder 13 on the rear pushing mechanism 14 to push the guide rod to be assembled to a certain length of guide, and then retract the rear pushing oil cylinder 13. After ensuring that the locking mechanism on the rear pushing mechanism 14 is in the unlocked state, switch the operation of the rear pushing mechanism 14 to quickly move to the connection position of the guide rod and the cylinder for assembly, and wait for the next pushing step. Correct the connection position of the guide rod and the cylinder to be in the aligned state, and the locking mechanism is in the locked state. Operate the rear pushing oil cylinder 13 on the rear pushing mechanism 14 to push the guide rod and the oil cylinder to be assembled. The above operations are alternately repeated to realize the step-by-step advancement of the assembly of the guide rod and complete the assembly of the guide rod and the cylinder.

[0050] During the assembly of the oil cylinder, the positioning and clamping of the piston rod, guide sleeve, and piston are adjusted in the oil cylinder piston rod subassembly unit, the front pushing mechanism completes the subassembly of the piston rod, guide sleeve, and piston, the positioning and adjustment of the cylinder are performed in the oil cylinder assembly unit, and the subassembled piston rod is assembled; in the guide rod assembly unit, the positioning and pushing of the guide rod are adjusted, and the assembly of the oil cylinder is completed. The three units are sequentially assembled to complete the assembly of the oil cylinder.

[0051] The above embodiments can show that the application modularly designs and integrates three units of a cylinder piston rod subassembly unit, a cylinder assembly unit and a guide rod assembly unit into a whole device, the whole structure of the device is modularly designed according to assembly functions, the structure function division is clear, the functions are complete, the adjustment function is convenient, and the device is suitable for assembly and combination and disassembly of large guide rod oil storage type cylinders of various length and diameter specifications, and can realize the process characteristics of satisfying the piston rod subassembly, cylinder assembly, guide rod assembly combination and cylinder disassembly of the large guide rod oil storage type cylinder on one device, and has high device practicality and comprehensive efficiency.

Claims

1. A multifunctional integrated large guide rod oil storage cylinder assembly and disassembly device. Its features are: It includes a piston rod assembly unit, a hydraulic cylinder assembly unit, and a guide rod assembly unit arranged coaxially in sequence; The cylinder assembly unit includes a first base (10), and a plurality of first lifting support seats (9) for supporting the cylinder are fixed in the middle of the first base (10); a cylinder locking and positioning tail seat (11) is installed at one end of the first base (10) near the guide rod assembly unit; a clamping and positioning blocking mechanism (8) for clamping and positioning the guide sleeve and piston is fixed at one end of the first base (10) near the piston rod sub-assembly unit, and a fourth lifting support seat (7) for supporting the guide sleeve and piston. The piston rod assembly unit includes a second base (1), on which a plurality of second support seats (4) for supporting the piston rod are slidably mounted. At the end of the second base (1) away from the cylinder assembly unit, a front push mechanism (2) with a sliding self-locking structure is also slidably mounted. A front push cylinder (3) for pushing the piston rod is mounted on the front push mechanism (2). The guide rod assembly unit includes a third base (12), on which a plurality of third lifting support seats (15) for supporting the guide rod are slidably installed. At the end of the guide rod assembly unit away from the cylinder assembly unit, a rear push mechanism (14) with a sliding self-locking structure is also slidably installed. A rear push cylinder (13) for pushing the guide rod is installed on the rear push mechanism (14).

2. The multifunctional integrated large guide rod oil storage cylinder assembly and disassembly device according to claim 1, characterized in that: The cylinder locking and positioning tailstock (11) is provided with a slot that cooperates with the tail of the oil cylinder. The cylinder locking and positioning tailstock (11) is slidably connected to the first base (10), and a locking bolt is provided between the cylinder locking and positioning tailstock (11) and the first base (10).

3. The multifunctional integrated large guide rod oil storage cylinder assembly and disassembly device according to claim 1, characterized in that: The first lifting support base (9) includes a V-shaped support block and a base. The base is fixed on the first base (10). A double guide column screw lifting device is connected between the V-shaped support block and the base.

4. The multifunctional integrated large guide rod oil storage cylinder assembly and disassembly device according to claim 1, characterized in that: The fourth lifting support (7) includes a V-shaped support block and a base. The base is fixed on the first base (10). A double guide column screw lifting device is connected between the V-shaped support block and the base. The clamping positioning blocking mechanism (8) includes a bidirectional screw (8-1) rotatably installed on the base. Both ends of the bidirectional screw (8-1) are respectively connected to clamping plates (8-2) by threads.

5. The multifunctional integrated large guide rod oil storage cylinder assembly and disassembly device according to claim 1, characterized in that: The second base (1) is fixed with a guide rail (5), and the front pushing mechanism (2) is slidably mounted on the guide rail (5); The second support base (4) includes a V-shaped support block and a base. The base is slidably mounted on the guide rail (5) on the first base (10). The V-shaped support block is fixed on the base. A roller is installed on the support surface of the V-shaped support block.

6. The multifunctional integrated large guide rod oil storage cylinder assembly and disassembly device according to claim 1, characterized in that: The front pushing mechanism (2) includes a base and a front lifting seat (2-1), which are connected by a guide rod. A front lifting cylinder (2-2) is connected between the base and the front lifting seat (2-1), and the front pushing cylinder (3) is installed on the front lifting seat (2-1). A pneumatic locking front hydraulic motor (2-3) is installed on the base, and a rack (6) is fixed on the second base (1). The output end of the front hydraulic motor (2-3) is fixedly connected to a transmission gear that meshes with the rack (6).

7. The multifunctional integrated large guide rod oil storage cylinder assembly and disassembly device according to claim 6, characterized in that: The rear pushing mechanism (14) is structurally symmetrical with the front pushing mechanism (2).

8. The multifunctional integrated large guide rod oil storage cylinder assembly and disassembly device according to claim 1, characterized in that: The third lifting support (15) includes a roller and a base. The base is slidably mounted on a guide rail (5) on the third base (12). A double guide column screw lifting device is connected between the roller and the base.

Citation Information

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