Split type hydraulic piston casting

Abstract

The utility model discloses a split type hydraulic piston casting, which relates to the technical field of split type pistons, and comprises a plug seat, a plug head and a fixed shaft, the fixed shaft is movably connected with the plug head and the plug seat, the two sides of the plug seat are provided with insertion holes, the edges of the outer sides of the insertion holes are provided with grooves, the upper end and the lower end of the interior of each insertion hole are provided with positioning grooves, and the positioning grooves are matched with the insertion holes. Positioning blocks matched with the positioning grooves are fixed to the upper end and the lower end of the fixed shaft, and a detachable positioning mechanism is arranged in the groove and used for limiting axial displacement of the fixed shaft. The utility model discloses a split type hydraulic piston casting. The fixed shaft is stably limited through the positioning mechanism, movement shaking abrasion is reduced, and the connection stability of the plug seat and the plug head is improved; the detachable design facilitates the disassembly and assembly of the fixed shaft, simplifies the replacement process of the chock plug, and reduces the maintenance cost; the reinforcing rib structure enhances the rigidity of the plug seat and ensures the stability under high load; double sealing of the sealing groove and the elastic washer effectively prevents hydraulic oil leakage, and the service life is prolonged.

Description

Technical Field

[0001] This utility model relates to the field of split piston technology, specifically a split hydraulic piston casting. Background Technology

[0002] Hydraulic piston castings play an important role in transmission in hydraulic systems. Traditional one-piece structures require replacement of the entire unit when local wear occurs, which is costly. Existing split pistons connect the piston seat and piston head through a fixed shaft, which passes through the piston head end placed inside the piston seat, and provides stable support and connection through the fixed shaft.

[0003] However, the fixed shaft is inserted inside the piston seat and piston head. If the fixed shaft is not securely inserted, it is prone to shaking and wear when the split piston is in use. After the fixed shaft wears, the surface will be deformed, which will cause the split piston to shake during operation and affect operation. Moreover, the piston head and piston seat are inconvenient to disassemble and assemble, which will affect the service life and maintenance efficiency.

[0004] Therefore, there is an urgent need for a structurally stable and easily assembled / disassembled split-type hydraulic piston casting. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a split-type hydraulic piston casting, which solves the problem of stable installation of split-type pistons. By using a positioning mechanism to reduce the shaking and friction of the fixed shaft, the overall service life of the split-type piston is improved, and the positioning mechanism is convenient and quick to assemble and disassemble.

[0006] To achieve the above objectives, this utility model is implemented through the following technical solution: a split-type hydraulic piston casting, including a piston seat, a piston head, and a fixed shaft, wherein the fixed shaft movably connects the piston head and the piston seat, the piston seat is provided with insertion holes on both sides, the outer edge of the insertion hole is provided with a groove, the upper and lower ends of the insertion hole are provided with positioning grooves, the upper and lower ends of the fixed shaft are fixed with positioning blocks that match the positioning grooves, and the groove is provided with a detachable positioning mechanism for limiting the axial displacement of the fixed shaft.

[0007] Furthermore: the positioning mechanism includes a positioning ring, with connecting pieces fixed on both sides of the positioning ring, symmetrical mounting holes on the plug seat, a support block fixed inside the plug seat, a threaded hole on the support block, a screw passing through the connecting piece, and the screw being threadedly connected to the threaded hole, so that the positioning ring presses against the fixed shaft in the groove.

[0008] Furthermore, the plug seat is internally fixed with triangular reinforcing ribs, which are located on both sides of the support block and are perpendicular to the support block.

[0009] Furthermore: a sealing groove is provided on the outside of the mounting hole, and a sealing ring is fixed to the end of the screw. The sealing ring is pressed into the sealing groove to form a seal.

[0010] Furthermore: an elastic washer is placed in the groove, and the positioning ring presses the washer to form an elastic seal.

[0011] Furthermore, the positioning mechanism is detachable; after removal, the fixed shaft can be pulled out from the insertion hole for easy replacement of the plug.

[0012] This utility model provides a split-type hydraulic piston casting. Compared with the prior art, it has the following advantages:

[0013] Beneficial effects:

[0014] This split-type hydraulic piston casting features a positioning mechanism that securely restricts the fixed shaft, reducing wear and tear from movement and improving the stability of the connection between the piston seat and the piston head. Its detachable design facilitates the disassembly and assembly of the fixed shaft, simplifies the piston head replacement process, and reduces maintenance costs. A reinforcing rib structure enhances the rigidity of the piston seat, ensuring stability under high loads. The double seal of the sealing groove and elastic gasket effectively prevents hydraulic oil leakage and extends service life. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the unfolded structure of the plug seat and plug head of this utility model;

[0017] Figure 3 This is a schematic diagram of the unfolded positioning structure of this utility model;

[0018] Figure 4 This is a schematic diagram of the structure of the fixed axis and positioning block of this utility model;

[0019] Figure 5 for Figure 3 Enlarged structural diagram at point A in the middle.

[0020] In the diagram: 1. Plug seat; 2. Plug head; 3. Fixed shaft; 4. Groove; 5. Insertion hole; 6. Positioning groove; 7. Positioning block; 8. Mounting hole; 9. Sealing groove; 10. Reinforcing rib; 11. Support block; 12. Threaded hole; 13. Screw; 14. Positioning ring; 15. Connecting piece; 16. Washer. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Please see Figure 1-5This utility model provides a technical solution: a split hydraulic piston casting; specifically, it consists of a piston seat 1, a piston head 2, and a fixed shaft 3. The piston head 2 is movably connected to the piston seat 1 via the fixed shaft 3, which is existing known technology and will not be described in detail here. Through-holes 5 are provided on both sides of the flat end of the piston seat 1. Grooves 4 are provided on the outer edge of the insertion holes 5. Positioning grooves 6 are provided at the upper and lower ends of the insertion holes 5. Positioning blocks 7 are fixed at the upper and lower ends of the fixed shaft 3. The fixed shaft 3 is inserted into the insertion holes 5, and the positioning blocks 7 are matched with the positioning grooves 6. At this time, the position of the fixed shaft 3 is fixed. A positioning mechanism is provided in the groove 4. The positioning mechanism positions the left and right positions of the fixed shaft 3. The positioning mechanism can provide stable restraint for the fixed shaft 3, reduce the shaking and wear of the fixed shaft 3 when the piston moves, and thus improve the stability of the movement between the piston seat 1 and the piston head 2. Furthermore, the fixed shaft 3 can be disassembled by removing the positioning mechanism, which facilitates the operation and replacement of the piston head 2.

[0023] The positioning mechanism includes a positioning ring 14, with connecting pieces 15 fixed on both sides of the positioning ring 14. Mounting holes 8 are provided on the plug seats 1 located on both sides of the insertion hole 5. A support block 11 is fixed inside the plug seat 1, with a threaded hole 12 provided on the support block 11. A screw 13 passes through the connecting piece 15 and is threadedly connected to the threaded hole 12 through the mounting hole 8. By tightening the screw 13, the positioning ring 14 is pressed into the groove 4, and the positioning block 7 is limited and fixed by the positioning ring 14, thereby achieving the positioning and limiting function. At the same time, the positioning ring 14 can be removed by removing the screw 13. At this time, the fixed shaft 3 can be pulled out to replace the plug head 2.

[0024] A reinforcing rib 10 is fixed inside the stopper seat 1. The reinforcing rib 10 is triangular and is distributed perpendicularly to the support block 11. The reinforcing rib 10 provides stable support for the stopper seat 1 and provides more stable reinforcement when the stopper seat 1 and the stopper head 2 move, making the whole system more stable.

[0025] A sealing groove 9 is provided on the outer edge of the mounting hole 8. A sealing ring is fixed at the screw head end of the screw rod 13. The sealing ring is pressed into the sealing groove 9 through the screw head. The sealing ring is pressed to achieve a sealing effect, thereby achieving a better sealing effect.

[0026] A washer 16 is placed in the groove 4. The washer 16 is elastic, so that the washer 16 can be squeezed and deformed by the pressure of the positioning ring 14, and a stable seal can be formed by the washer 16. At the same time, the elasticity of the washer 16 can provide a more stable compression effect in the opposite direction.

Claims

1. A split-type hydraulic piston casting, comprising a piston seat (1), a piston head (2), and a fixed shaft (3), wherein the fixed shaft (3) movably connects the piston head (2) and the piston seat (1), characterized in that: The plug seat (1) has insertion holes (5) on both sides. The outer edge of the insertion hole (5) has a groove (4). The upper and lower ends of the insertion hole (5) are provided with positioning grooves (6). The upper and lower ends of the fixed shaft (3) are fixed with positioning blocks (7) that match the positioning grooves (6). The groove (4) is provided with a detachable positioning mechanism to limit the axial displacement of the fixed shaft (3).

2. A split hydraulic piston casting as claimed in claim 1, characterized in that: The positioning mechanism includes a positioning ring (14), with connecting pieces (15) fixed on both sides of the positioning ring (14). The plug seat (1) has symmetrical mounting holes (8). A support block (11) is fixed inside the plug seat (1). A threaded hole (12) is opened on the support block (11). A screw (13) passes through the connecting piece (15), and the screw (13) is threadedly connected to the threaded hole (12), so that the positioning ring (14) presses against the fixed shaft (3) in the groove (4).

3. A split hydraulic piston casting as claimed in claim 2, characterized in that: The plug seat (1) is fixed with triangular reinforcing ribs (10) inside. The reinforcing ribs (10) are located on both sides of the support block (11) and are arranged perpendicular to the support block (11).

4. The split hydraulic piston casting of claim 2, wherein: A sealing groove (9) is provided on the outside of the mounting hole (8), and a sealing ring is fixed at the end of the screw (13). The sealing ring is pressed into the sealing groove (9) to form a seal.

5. The split hydraulic piston casting of claim 2, wherein: An elastic washer (16) is placed in the groove (4), and the positioning ring (14) presses the washer (16) to form an elastic seal.

6. The split hydraulic piston casting of claim 1, wherein: The positioning mechanism is detachable. After removal, the fixed shaft (3) can be pulled out from the insertion hole (5) to facilitate the replacement of the plug (2).

Images