A dismounting tool for a port assembly of a hydraulic cylinder

Abstract

The utility model provides a kind of dismounting and assembling tool for water pressure cylinder port assembly, belong to seawater desalination engineering technical field.Solve the problem of difficult dismounting and assembling of water pressure cylinder port assembly due to lack of special tool.It includes frame main body, fixed plate, bolt and lead screw, the frame main body includes inner layer plate and outer layer plate, the inner layer plate and outer layer plate parallel spaced apart double-layer structure, one end of the fixed plate is perpendicular to the frame main body and is welded, another end is provided with through threaded hole, bolt is installed in the through threaded hole of fixed plate, fixed plate is several, several fixed plates are evenly arranged along the frame main body contour direction, lead screw is vertically through the inner layer plate and outer layer plate of frame main body, the inner side surface and the outer side surface of outer layer plate are each provided with nut and lead screw is screwed, the lead screw is several, several lead screws are evenly arranged along the circumferential direction.It is mainly used for removing or installing the port assembly of water pressure cylinder.

Description

Technical Field

[0001] This utility model belongs to the field of seawater desalination engineering technology, and in particular relates to a tooling for disassembling and assembling a hydraulic cylinder port assembly. Background Technology

[0002] In seawater desalination projects, the hydraulic cylinder, as a core component of the high-pressure vessel, directly affects the system's operational safety through the sealing and reliability of its port components. Port components typically include precision parts such as sealing devices and connecting bolts, requiring frequent disassembly and assembly during equipment maintenance or replacement. Currently, the industry commonly uses general-purpose tools for disassembly and assembly, such as jacks, pry bars, and manual wrenches. However, the hydraulic cylinder port structure is compact and space is limited. After long-term operation, components are prone to adhesion due to corrosion or hardening of the sealing rings. Manual operation requires multiple people and is time-consuming. During disassembly and assembly, components can easily be ejected due to sudden release of prestress, posing a safety hazard. Furthermore, hydraulic cylinder ports are often made of high-hardness alloy materials, making it difficult for conventional tools to provide stable axial ejection force. Forced disassembly may damage the internal structure of the cylinder. Moreover, existing disassembly and assembly methods cannot simultaneously control the tightening sequence of multiple sets of connecting bolts, potentially damaging the positioning holes of the port components due to stress concentration. Utility Model Content

[0003] In view of this, the present invention aims to provide a tooling for disassembling and assembling hydraulic cylinder port assemblies, so as to solve the problem of difficulty in disassembling and assembling hydraulic cylinder port assemblies due to the lack of special tools.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: a tooling for disassembling and assembling a hydraulic cylinder port assembly, comprising a frame body, fixing plates, bolts, and lead screws. The frame body is a double-layer structure with inner and outer plates arranged in parallel and spaced apart. The inner and outer plates are connected by welding reinforcing ribs. One end of the fixing plate is welded perpendicularly to the frame body, and the other end is provided with a through threaded hole. The bolts are installed in the through threaded holes of the fixing plates. There are several fixing plates, which are evenly distributed along the contour of the frame body. The lead screws penetrate perpendicularly through the inner and outer plates of the frame body. Nuts that are screwed to the lead screws are provided on the inner and outer surfaces of the outer plates. There are several lead screws, which are evenly distributed along the circumferential direction.

[0005] Furthermore, both the inner and outer layers are equilateral triangular structures.

[0006] Furthermore, the welding points on both sides of the reinforcing rib are located at the midpoint of the line connecting the vertices of the inner and outer layers, respectively.

[0007] Furthermore, there are three lead screws, which respectively penetrate the three corner areas of the inner and outer layers.

[0008] Furthermore, there are three fixing plates, which are located at the three corners of the inner and outer layers, respectively.

[0009] Furthermore, the inner and outer layers have a smooth through-hole structure at the point where they pass through the lead screw.

[0010] Furthermore, the reinforcing ribs are arranged radially along the main frame body.

[0011] Furthermore, the axial direction of the bolt is spatially perpendicular to the axial direction of the lead screw.

[0012] Furthermore, a through hole is formed at the center of the main frame body.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] 1. The vertical fit structure of the bolt and the fixing plate of this utility model allows the bolt to directly abut against the end face of the hydraulic cylinder port assembly and achieve precise locking through the through threaded hole. This completely eliminates the slippage problem caused by the inability of general tools to match the end face of the port assembly. The assembly and disassembly components of this utility model can be fixed by a single person in a confined space, avoiding the risk of accidental displacement or ejection of the port assembly caused by manual knocking, and improving the safety of operation from the root.

[0015] 2. The screw and frame body of this utility model apply an axial ejection force that is completely coincident with the axis of the port assembly through rotation, replacing the lateral force of traditional hydraulic tools. The symmetrical distribution design of the three screws in the vertex area of ​​the triangular plate, together with the anti-loosening structure of the nut, realizes the synchronous and balanced transmission of the three forces during disassembly and assembly, prevents the sealing component from failing due to bias deformation, and avoids the positioning hole on the end face of the port assembly from cracking due to single-point stress concentration, thus significantly extending the service life of the component.

[0016] 3. The rigid frame of the double-layer triangular plate and the reinforcing ribs of this utility model forms a bending-resistant structure. The geometric characteristics of the equilateral triangle further optimize the load distribution. When bearing the prestress released by the high-pressure cylinder, this design effectively suppresses the deformation of the frame body and ensures that the lead screw ejection trajectory is not deviated, thereby avoiding damage to the port components and reducing damage to the internal structure of the cylinder during disassembly and assembly. Attached Figure Description

[0017] The accompanying drawings, which form part of this utility model, are used to provide a further understanding of the utility model. The illustrative embodiments of the utility model and their descriptions are used to explain the utility model and do not constitute an undue limitation of the utility model. In the drawings:

[0018] Figure 1 This is a schematic diagram of the axial structure of a disassembly and assembly tooling for a hydraulic cylinder port assembly according to the present invention.

[0019] Figure 2 This is a side view of the disassembly and assembly tooling for a hydraulic cylinder port assembly according to the present invention.

[0020] Figure 3 This is a schematic diagram of the bearing structure for disassembly and assembly of a hydraulic cylinder port assembly according to the present invention.

[0021] Figure 4 This is a side view of the assembly and disassembly tooling for the hydraulic cylinder port assembly described in this utility model, and the hydraulic cylinder assembly.

[0022] Figure 5 This is a cross-sectional structural diagram of a tooling for disassembling and assembling a hydraulic cylinder port assembly according to the present invention.

[0023] Figure 6 This is a side view of the port assembly of a disassembly and assembly tool for a hydraulic cylinder port assembly according to the present invention.

[0024] Figure 7 This is a front structural diagram of a port assembly for disassembly and assembly of a hydraulic cylinder port assembly according to the present invention.

[0025] Figure 8 This is a cross-sectional structural diagram of a port assembly for disassembling and assembling a hydraulic cylinder port assembly, as described in this utility model.

[0026] In the picture:

[0027] 1-1. Frame main body; 1-2. Fixing plate; 1-3. Reinforcing rib; 1-4. Bolt; 1-5. Lead screw; 1-6. First nut group; 2. Hydraulic cylinder; 2-1. Stainless steel threaded sleeve; 3. Port assembly; 3-1. Interface; 3-2. Sealing assembly; 3-3. Mounting hole. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. It should be noted that, unless otherwise specified, the embodiments and features in the embodiments of the present utility model can be combined with each other, and the described embodiments are only some embodiments of the present utility model, not all embodiments.

[0029] Detailed implementation method: See Figure 1-8This embodiment describes a disassembly and assembly fixture for a hydraulic cylinder port assembly. It includes a frame body 1-1, a fixing plate 1-2, bolts 1-4, and a lead screw 1-5. The frame body 1-1 is a double-layer structure with an inner and outer layer plate arranged in parallel and spaced apart. The inner and outer layer plates are welded together by reinforcing ribs 1-3. The double-layer structure of the frame body 1-1 greatly enhances the rigidity and stability of the disassembly and assembly fixture, preventing torsional deformation under high loads. The reinforcing ribs 1-3 firmly weld the inner and outer triangular plates together, further improving the bending resistance of the disassembly and assembly fixture. One end of the fixing plate 1-2 is welded perpendicularly to the frame body 1-1. The other end is provided with a through threaded hole. The bolt 1-4 is installed in the through threaded hole of the fixing plate 1-2. The fixing plate 1-2 is used to securely fix the disassembly and assembly tool in the threaded hole on the outer surface of the port of the water pressure cylinder 2 by the bolt 1-4. A stainless steel threaded sleeve 2-1 is also provided in the threaded hole on the outer surface of the port of the water pressure cylinder 2 to prevent damage to the cylinder body of the water pressure cylinder 2 during the connection between the bolt 1-4 and the water pressure cylinder 2. There are several fixing plates 1-2, which are evenly distributed along the contour direction of the frame body 1-1. By the several fixing plates 1-2 evenly distributed along the contour direction of the frame body 1-1, the tightening force applied by the bolt 1-4 is evenly distributed to the water pressure cylinder. On the circumferential contact surface at port 2, deformation or failure caused by local stress concentration is avoided, while improving the compatibility and operational reliability of the disassembly and assembly tooling with the hydraulic cylinder 2. The lead screw 1-5 vertically penetrates the inner and outer plates of the frame body 1-1. After penetrating the frame body 1-1, the lead screw 1-5 connects to the mounting hole 3-3 on the end face of the sealing component 2 in the port assembly 3. Nuts 1-6 are screwed to the lead screw 1-5 on both the inner and outer surfaces of the outer plate. The double-layer plate structure of the frame body 1-1 is fixed by clamping the nuts 1-6 set on the inner side of the outer plate, so that the nuts 1-6 can only rotate around the axis of the lead screw 1-5 during the tightening operation. Because screws 1-5 are threadedly connected to port assembly 3, their rotational freedom is constrained, thus directly converting the rotational torque of the nut into the axial displacement of the screw, driving port assembly 3 into or out of hydraulic cylinder 2. There are several screws 1-5, which are evenly distributed along the circumference. Through the symmetrical layout of the screws 1-5, the fastening force or pushing force applied to port assembly 3 is evenly distributed in the circumference, avoiding deformation or installation offset of port assembly 3 caused by off-center loading. At the same time, the end of screw 1-5 is directly connected to the end face of sealing component 3-2 in port assembly 3 to form a rigid support structure, ensuring stable positioning and controllable movement of port assembly 3 by disassembly and assembly tools during disassembly and assembly.

[0030] The working principle of this utility model is as follows:

[0031] When installing port assembly 3, pre-install the port assembly at the port of hydraulic cylinder 2. The disassembly / reassembly fixture is fixed to the threaded holes on the outer surface of hydraulic cylinder 2 using bolts 1-4, ensuring that the fixture will not shift or fall off. Screw the ends of lead screw 1-5 into the mounting holes 3-3 on the end face of sealing component 3-2 in port assembly 3, achieving a reliable connection between lead screw 1-5 and port assembly 3. Simultaneously and evenly tighten the three nuts 1-6 located inside the frame body 1-1, driving lead screw 1-5 to move axially linearly into hydraulic cylinder 2. Lead screw 1-5 also drives port assembly 3 to move synchronously into hydraulic cylinder 2. Move until it enters the predetermined area, rotate bolt 1-4 and lead screw 1-5 to remove the disassembly and assembly tooling, and complete the installation of port assembly 3; when it is necessary to disassemble port assembly 3, fix the disassembly and assembly tooling to the port of hydraulic cylinder 2 with bolt 1-4, screw the tail end of lead screw 1-5 into the mounting hole 3-3 on the end face of sealing component 3-2 in port assembly 3, and simultaneously screw the three nuts 1-6 set on the outside of frame body 1-1. The rotation of nuts 1-6 drives lead screw 1-5 to move axially linearly to the outside of hydraulic cylinder 2. Lead screw 1-5 drives port assembly 3 to move out of hydraulic cylinder 2, separate from cylinder body, and complete disassembly.

[0032] Both the inner and outer plates are equilateral triangular structures. The equilateral triangular configuration gives the frame body 1-1 high bending and torsional stiffness, resists the radial component force generated by the lead screw 1-5 transmission, and ensures that the tooling itself is not deformed.

[0033] The welding points on both sides of the reinforcing ribs 1-3 are located at the midpoint of the line connecting the vertices of the inner and outer layers, so that the reinforcing ribs 1-3 directly connect the stress concentration areas of the inner and outer layers, further improving the stability and bending resistance of the disassembly and assembly structure.

[0034] There are three lead screws 1-5, which pass through the three corner areas of the two sets of triangular plates respectively. The axial force is transmitted synchronously through the three lead screws 1-5 to prevent the port assembly 3 from shifting, avoid single-point overload, and reduce the risk of local deformation.

[0035] There are three fixing plates 1-2, which are located at the ends of the three corners of the inner and outer plates, respectively. The three fixing plates 1-2 are symmetrically distributed at 120° at the corners of the triangular frame. The threaded holes on the outer periphery of the hydraulic cylinder 2 are locked by bolts 1-4 to achieve rigid fixation of the tooling in the circumferential direction without dead angles, eliminate the risk of vibration or deflection during disassembly and assembly, and avoid deformation of the frame body 1-1 due to asymmetrical force.

[0036] The inner and outer plates have a smooth through-hole structure at the point where they pass through the lead screw 1-5. The smooth through-hole eliminates rotational constraints, ensuring that the lead screw 1-5 only makes axial linear motion, and ensuring that the port assembly 3 is pressed in parallel during disassembly and assembly.

[0037] The reinforcing ribs 1-3 are arranged radially along the frame body 1-1 to further improve the stability of the frame body 1-1 structure and prevent deformation.

[0038] The axial direction of the bolt 1-4 is spatially perpendicular to the axial direction of the lead screw 1-5 to prevent the sealing assembly 3-2 from being scratched by the hydraulic cylinder 2 due to displacement of the disassembly and assembly tooling.

[0039] The frame body 1-1 has a through hole in the center, which provides a through channel for the interface 3-1 in the port assembly 3, ensuring that the installation is not obstructed by the interface 3-1.

[0040] The specific embodiments of this utility model disclosed above are merely illustrative of the present utility model. These specific embodiments do not exhaustively describe all details, nor do they limit the utility model to only the described embodiments. Many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it.

Claims

1. A disassembly tool for a water pressure cylinder port assembly, characterized by: It includes a frame body (1-1), a fixing plate (1-2), bolts (1-4), and a lead screw (1-5). The frame body (1-1) is a double-layer structure with an inner layer plate and an outer layer plate arranged in parallel and spaced apart. The inner layer plate and the outer layer plate are welded together by reinforcing ribs (1-3). One end of the fixing plate (1-2) is welded perpendicularly to the frame body (1-1), and the other end is provided with a through threaded hole. The bolts (1-4) are installed in the through threaded holes of the fixing plate (1-2). There are several fixing plates (1-2), which are evenly distributed along the outline of the frame body (1-1). The lead screw (1-5) penetrates perpendicularly through the inner layer plate and the outer layer plate of the frame body (1-1). Nuts (1-6) that are screwed to the lead screw (1-5) are provided on the inner and outer surfaces of the outer layer plate. There are several lead screws (1-5), which are evenly distributed along the circumferential direction.

2. A tool for disassembling a port assembly of a hydraulic cylinder according to claim 1, characterized in that: Both the inner and outer layers are equilateral triangular structures.

3. A tool for disassembling a port assembly of a hydraulic cylinder according to claim 2, wherein: The welding points on both sides of the reinforcing rib (1-3) are located at the midpoint of the line connecting the apex of the inner layer plate and the outer layer plate, respectively.

4. The tool of claim 2, wherein: There are three lead screws (1-5), and the three lead screws (1-5) pass through the three corner areas of the inner layer plate and the outer layer plate respectively.

5. The tool of claim 2, wherein: There are three fixing plates (1-2), which are located at the ends of the three corners of the inner and outer layers, respectively.

6. A tool for disassembling a port assembly of a hydraulic cylinder according to claim 1, wherein: The inner and outer plates have a smooth through-hole structure at the point where they pass through the lead screw (1-5).

7. A tool for disassembling a port assembly of a hydraulic cylinder according to claim 1, wherein: The reinforcing ribs (1-3) are arranged radially along the main frame body (1-1).

8. The tool of claim 1, wherein: The axial direction of the bolt (1-4) is spatially perpendicular to the axial direction of the lead screw (1-5).

9. The tool of claim 2, wherein: A through hole is opened at the center of the main frame (1-1).

Images