Improved front-section cylinder body of unclamping tool
By dividing the cutter cylinder body into a rear end cylinder body and a front end cylinder body, and utilizing structures such as a fixing rod, a locking nut, and a support plate, a split design of the cutter cylinder body is achieved, which solves the problem of inconvenient replacement of U-shaped rings and retaining rings in the existing technology and improves maintenance efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-06
- Publication Date
- 2026-04-07
AI Technical Summary
The existing cutting cylinder requires complete disassembly of the piston body and piston rod when replacing the U-ring and retaining ring, which makes replacement inconvenient.
The design adopts a split-type structure, dividing the front cylinder into a rear cylinder and a front cylinder. The front cylinder is easily disassembled and the piston can be operated independently through a connecting structure such as a fixing rod, locking nut, and support plate.
It simplifies the replacement process of components such as the U-ring, avoids the hassle of disassembling the piston body and piston rod as a whole, and improves maintenance efficiency.
Smart Images
Figure CN224093607U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to a beat sword cylinder technical field, concretely is a kind of improved beat sword front section cylinder. BACKGROUND
[0002] Beat sword cylinder is a kind of alias of hydraulic cylinder, hydraulic cylinder is the hydraulic energy into mechanical energy, does linear reciprocating motion's hydraulic actuating element, it simple structure, work reliable, when using it to realize reciprocating motion, can dispense with speed reducer, and there is no transmission gap, movement is stable, therefore, it is widely used in the hydraulic system of various machinery, hydraulic cylinder output force and the effective area of piston and the pressure difference of its both sides are proportional, generally applied in gantry numerical control milling machine, and it is called beat sword cylinder.
[0003] Beat sword cylinder front end cylinder is integrated, and piston body and piston rod one section are located in front section cylinder, and U-shaped ring and retaining ring etc. are equipped on piston body, when needing to replace, piston body and piston rod need to be integrally disassembled, so that U-shaped ring replacement is more inconvenient, therefore, the technical personnel of the field provide an improved beat sword front section cylinder to solve the problems presented in the above background art. UTILITARY MODEL CONTENTS
[0004] The utility model aims at providing an improved beat sword front section cylinder to solve the problems presented in the above background art.
[0005] To achieve the above object, the utility model provides the following technical scheme:
[0006] An improved beat sword front section cylinder, comprising a rear end cylinder, a front end cylinder is arranged on the left side of the rear end cylinder, two groups of support plates are fixedly installed on the outer surface of the front end cylinder, and the two groups of support plates are equidistantly distributed around the central axis of the front end cylinder, two groups of fixed rods are fixedly installed on the left side surface of the rear end cylinder, each group of fixed rods corresponds to a support plate, a threaded connection of two lock nuts is formed on the outer surface of each group of fixed rods, the outer surface of each lock nut is in contact with the two side surfaces of the support plate, two pull rods are fixedly installed on the outer surface of the front end cylinder, and a piston body is arranged in the front end cylinder.
[0007] As a further scheme of the utility model: a U-shaped ring is sleeved on the outer surface of the piston body, a retaining ring is sleeved on the outer surface of the piston body, and the outer surfaces of the U-shaped ring and the retaining ring are in contact with the inner wall of the front end cylinder.
[0008] As a further scheme of the utility model: a dismounting rod is threadedly connected to the inner wall of each group of support plates, and the outer surface of each dismounting rod is threadedly connected to the inner wall of the front end cylinder.
[0009] As a further improvement of this utility model: two sets of insertion holes are provided on the left side of the rear cylinder body, and two sets of guide rods are fixedly installed on the right side of the front cylinder body, with the outer surface of each set of guide rods engaging with the inside of the insertion hole.
[0010] As a further embodiment of this utility model: a piston rod is provided inside the piston body, and a shaft seal is provided on the outer surface of the piston rod, with the outer surface of the shaft seal in contact with the inner wall of the rear cylinder.
[0011] As a further improvement of this utility model: two O-rings are fitted on the outer surface of the piston rod, and a retaining ring is fitted on the right end of the piston rod.
[0012] Compared with the prior art, the beneficial effects of this utility model are:
[0013] This utility model features a rear cylinder body, a front cylinder body, a support plate, a fixing rod, a locking nut, a pull rod, and a piston body. The front cylinder body is divided into a rear cylinder body and a front cylinder body, forming a split design. The fixing rod, locking nut, and support plate can be used to connect the rear cylinder body and the front cylinder body, which facilitates the disassembly of the front cylinder body. This, in turn, facilitates the operation of the piston body, avoiding the need to disassemble the entire piston body and piston rod, and making it easier to replace U-rings, etc. Attached Figure Description
[0014] Figure 1 A schematic diagram of the overall structure of an improved cutting tool front section cylinder;
[0015] Figure 2 A three-dimensional sectional view of the front and rear cylinder blocks of an improved cutting tool.
[0016] Figure 3 A schematic diagram of the three-dimensional structure of the front cylinder of an improved cutting tool front section cylinder;
[0017] Figure 4 This is a three-dimensional structural diagram of a support plate in the front section cylinder of an improved cutting tool.
[0018] In the diagram: 1. Rear cylinder block; 2. Tie rod; 3. Front cylinder block; 4. U-ring; 5. Piston body; 6. Shaft seal; 7. Piston rod; 8. O-ring; 9. Retaining ring; 10. Insertion hole; 11. Retaining ring; 12. Guide rod; 13. Fixing rod; 14. Support plate; 15. Locking nut; 16. Disassembly rod. Detailed Implementation
[0019] Please see Figures 1-4An improved front section cylinder of a cutting tool includes a rear cylinder 1, a front cylinder 3 on the left side of the rear cylinder 1, two sets of support plates 14 fixedly installed on the outer surface of the front cylinder 3, and the two sets of support plates 14 are distributed at equal distances around the central axis of the front cylinder 3. Two sets of fixing rods 13 are fixedly installed on the left side of the rear cylinder 1, each set of fixing rods 13 is corresponding to the support plate 14, and two locking nuts 15 are threadedly connected to the outer surface of each set of fixing rods 13. The outer surface of each locking nut 15 is in contact with the two sides of the support plate 14. Two pull rods 2 are fixedly installed on the outer surface of the front cylinder 3, and a piston body 5 is provided inside the front cylinder 3.
[0020] A U-shaped ring 4 is fitted on the outer surface of the piston body 5, and a retaining ring 11 is fitted on the outer surface of the piston body 5. The outer surfaces of the U-shaped ring 4 and the retaining ring 11 are in contact with the inner wall of the front cylinder 3. Through the U-shaped ring 4 and the retaining ring 11, the U-shaped ring 4 has symmetrically arranged sealing lips, which play a sealing role. The main function of the retaining ring 11 is to fix and prevent other parts on the shaft from moving. The inner wall of each set of support plates 14 is threaded with a disassembly rod 16. The outer surface of each disassembly rod 16 is threaded with the inner wall of the front cylinder 3. The disassembly rod 16 is used for the installation and disassembly of the support plate 14. Two sets of insertion holes 10 are opened on the left side of the rear cylinder 1. Two sets of guide rods 12 are fixedly installed on the right side of the front cylinder 3. The outer surface of each set of guide rods 12 is engaged with the inside of the insertion hole 10. Through the guide rods 12 and the insertion hole 10, the installation guide is played, which is used for the precise matching of the front cylinder 3 and the rear cylinder 1.
[0021] The piston rod 7 is installed inside the piston body 5. The outer surface of the piston rod 7 is provided with a shaft seal 6. The outer surface of the shaft seal 6 contacts the inner wall of the rear cylinder 1. The shaft seal 6 reduces the contact between the bearing and the seal, thereby reducing friction and wear. Two O-rings 8 are fitted on the outer surface of the piston rod 7. A retaining ring 9 is fitted on the right end of the piston rod 7. The main functions of the O-rings 8 and the retaining ring 9 are to prevent fluid leakage and prevent external impurities from entering the system. The main function of the retaining ring 9 is to support the piston rod 7 so that it can remain stable when the engine is running.
[0022] The working principle of this utility model is as follows: In use, the piston rod 7 and piston body 5 are installed in the front cylinder 3 and the rear cylinder 1, respectively. The piston body 5 is equipped with a retaining ring 11 and a U-ring 4. The piston body 5 is mounted on the piston rod 7, which is equipped with an O-ring 8 and a retaining ring 9. Since the piston body 5 is installed in the front cylinder 3, if the retaining ring 11 and U-ring 4 malfunction and need to be replaced, the piston rod 7 and piston body 5 need to be completely disassembled. To facilitate replacement, the outer locking nut 15 can be unscrewed, and then the pull rod 2 can be used. Pull the front cylinder 3 to remove it directly. At this time, the piston 5 is exposed, and the retaining ring 11 and U-ring 4 can be disassembled directly. Replace the retaining ring 11 and U-ring 4 with new ones. Then put the front cylinder 3 on the piston 5 and pull the front cylinder 3 to move towards the rear cylinder 1. Insert the guide rod 12 into the insertion hole 10 and the fixing rod 13 passes through the support plate 14. Finally, tighten the outer locking nut 15 and tighten the inner locking nut 15 towards the support plate 14 to fix the front cylinder 3 and the rear cylinder 1.
[0023] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.
Claims
1. An improved front section cylinder body for cutting tools, comprising a rear section cylinder body (1), characterized in that: A front cylinder (3) is provided on the left side of the rear cylinder (1). Two sets of support plates (14) are fixedly installed on the outer surface of the front cylinder (3), and the two sets of support plates (14) are distributed at equal distances around the central axis of the front cylinder (3). Two sets of fixing rods (13) are fixedly installed on the left side of the rear cylinder (1). Each set of fixing rods (13) corresponds to the support plate (14). Two locking nuts (15) are threadedly connected to the outer surface of each set of fixing rods (13). The outer surface of each locking nut (15) is in contact with the two sides of the support plate (14). Two pull rods (2) are fixedly installed on the outer surface of the front cylinder (3). A piston body (5) is provided inside the front cylinder (3).
2. The improved cutting tool front section cylinder body according to claim 1, characterized in that: The outer surface of the piston body (5) is fitted with a U-shaped ring (4) and a retaining ring (11). The outer surfaces of the U-shaped ring (4) and the retaining ring (11) are in contact with the inner wall of the front cylinder (3).
3. The improved cutting tool front section cylinder body according to claim 1, characterized in that: Each set of support plates (14) has a threaded connection to the inner wall of a disassembly rod (16), and the outer surface of each disassembly rod (16) is threaded to the inner wall of the front cylinder (3).
4. The improved cutting tool front section cylinder body according to claim 1, characterized in that: The left side of the rear cylinder (1) is provided with two sets of insertion holes (10), and the right side of the front cylinder (3) is fixedly installed with two sets of guide rods (12). The outer surface of each set of guide rods (12) is engaged with the inside of the insertion hole (10).
5. The improved cutting tool front section cylinder body according to claim 1, characterized in that: The piston body (5) is provided with a piston rod (7) inside, and a shaft seal (6) is provided on the outer surface of the piston rod (7). The outer surface of the shaft seal (6) is in contact with the inner wall of the rear cylinder (1).
6. The improved cutting tool front section cylinder body according to claim 5, characterized in that: Two O-rings (8) are fitted on the outer surface of the piston rod (7), and a retaining ring (9) is fitted on the right end of the piston rod (7).