Multi-size sealing ring mounting tool

Abstract

The utility model discloses a multi-size sealing ring installation tool. The multi-size sealing ring installation tool comprises a main device body, a claw part assembly and an adjusting assembly. First and second air inlets are formed in the outer side wall of the main body; the claw part assembly comprises expanding claws and lifting claws which are distributed along the circumference at intervals, the expanding claws move in the radial direction, the ends of the expanding claws are provided with protrusions with supporting parts and supporting parts, the expanding claws are folded at the beginning to enable the protrusions to be gathered into a cylinder to be sleeved with the sealing ring, the expanding claws expand to open the sealing ring after air inflow, and the lifting claws eject the sealing ring out of the sealing ring to be clamped into a workpiece mounting groove; the adjusting assembly comprises an adjusting screw rod and a circular truncated cone, two ends of the screw rod are connected with a first knob and the circular truncated cone, a cylindrical ring body with an adjusting screw rod is arranged on the circular truncated cone to position a workpiece, and the air inlet is provided with an air inlet valve with an air adjusting valve. The tool solves the problems that a traditional tool is low in adjustment efficiency, installation deviation exists and a sealing ring is prone to being damaged through cooperation of the air-driven claw part, the adjustable expanding claw structure and the precise positioning assembly, and the multi-size adaptability, the installation efficiency and the sealing quality are improved.

Description

Technical Field

[0001] This utility model relates to the field of sealing installation tools, specifically to a multi-size sealing ring installation tool. Background Technology

[0002] As a key component in mechanical parts to achieve sealing function, sealing rings are widely used in industrial scenarios such as hydraulic systems and pipeline connections. Their installation quality directly affects sealing performance and equipment reliability, especially in precision assembly, where it is essential to ensure that the sealing ring is embedded into the workpiece mounting groove without twisting or damage. However, traditional installation methods rely on manual operation, resulting in problems such as inaccurate positioning and low efficiency. For sealing rings of various sizes and complex working conditions, existing tools struggle to balance adaptability and operational precision, easily leading to sealing ring stretching deformation or improper installation.

[0003] Therefore, the above problems urgently need to be solved. Utility Model Content

[0004] Purpose of the utility model: In order to overcome the above shortcomings, the purpose of this utility model is to provide a multi-size sealing ring installation tool. By setting a radially expandable expanding claw and an axially lifting claw to work together, combined with pneumatic drive and adjustable protrusion structure, it can achieve precise opening of the sealing ring, non-destructive lifting and rapid positioning of the workpiece. At the same time, it uses an integrated adjustment component to adapt to sealing rings and workpieces of different sizes, solving the problems of poor multi-size adaptability, low installation accuracy, easy damage to the sealing ring and insufficient workpiece adjustment efficiency in the prior art.

[0005] Technical Solution: This utility model provides a multi-size sealing ring installation tool, including a main body, which is cylindrical, with a first air inlet and a second air inlet on its outer side wall; a claw assembly, which is located at the upper end of the main body and includes at least three expanding claws and at least three lifting claws, which are distributed sequentially and spaced apart along the circumferential direction to form a ring array. The expanding claws reciprocate radially along the main body and have a protrusion at the end away from the outer side wall. The lifting claws reciprocate axially along the main body. In the initial state, the expanding claws are closed and the protrusions converge to form a column, and the sealing ring is fitted onto the column. Then, air enters through the first air inlet, the expanding claws expand radially, the sealing ring is opened, and the workpiece extends into the sealing ring. Air enters through the second air inlet, the lifting claws rise, pushing the sealing ring out of the protrusion, and the sealing ring retracts and is inserted into the installation groove of the workpiece; and an adjustment assembly, which is axially inserted through the main body to adjust the axial and radial position of the workpiece along the main body. The expanding claw and the lifting claw are distributed in a ring array along the circumference. The radial movement of the expanding claw opens the sealing ring, and the axial movement of the lifting claw pushes the sealing ring out. The deformation and displacement of the sealing ring are precisely controlled through two-dimensional motion. The adjustment component runs through the main body and can simultaneously adjust the axial depth and radial concentricity of the workpiece to adapt to the installation and positioning requirements of workpieces of different specifications. In the initial state, the expanding claw protrudes and gathers into a column, which can be compatible with the fitting of sealing rings with different inner diameters.

[0006] Furthermore, in a multi-size sealing ring installation tool of this application, the expanding claw further includes a movable part and an adjusting part. The protrusion is located at the end of the adjusting part away from the outer wall. The adjusting part is radially adjustable on the movable part via bolts. The movable part is a trapezoidal wedge block that mates with a trapezoidal groove radially provided on the main body. The adjusting part adjusts the position of the protrusion by sliding the bolts radially to accommodate sealing rings of different sizes.

[0007] Furthermore, in this application, a multi-size sealing ring installation tool includes a protrusion comprising a support and a bracket. The support is positioned above the bracket. In its initial state, the expanding claws are retracted, and the sealing ring is placed on the bracket. During expansion, the support abuts against the inner ring of the sealing ring. The support is arc-shaped. The support employs a curved surface design to contact the inner ring surface of the sealing ring, preventing damage to the sealing ring during expansion.

[0008] Furthermore, in this application, a multi-size sealing ring installation tool includes an adjusting assembly comprising an adjusting screw threadedly connected axially to the main body. Both ends of the adjusting screw extend beyond the main body. A first knob is mounted at the end of the adjusting screw furthest from the claw assembly, and a truncated cone is mounted at the other end. When the sealing ring is opened, the workpiece extends into the sealing ring and rests on the truncated cone. The adjusting screw extends axially through the main body; one end allows for manual fine adjustment via the first knob, while the truncated cone at the other end supports the workpiece. Rotating the screw synchronously controls the axial movement of the truncated cone.

[0009] Furthermore, in a multi-size sealing ring installation tool of this application, a cylindrical ring body is also provided on the truncated cone. The workpiece is placed inside the cylindrical ring body. A set of adjusting screws is threaded through the ring wall from the outside to the inside. The adjusting screws are threaded to the ring wall. One end of the adjusting screw located on the outside of the ring wall is provided with a second knob, and the other end abuts against the workpiece. The cylindrical ring body at the top of the truncated cone forms a radial constraint space. The adjusting screws on the ring wall, driven by the second knob, can be independently adjusted radially to adjust the extension length of the screws, thereby achieving radial limiting of the workpiece.

[0010] Furthermore, in this application, a multi-size sealing ring installation tool is provided, wherein a first air inlet valve is installed on the first air inlet, and a second air inlet valve is installed on the second air inlet. Both the first and second air inlet valves are equipped with regulating valves. The first air inlet valve (controlling the expansion of the expanding claw) and the second air inlet valve (controlling the lifting of the lifting claw) are each integrated with regulating valves, allowing independent adjustment of the two air pressures. This enables differentiated control of the "expanding claw opening force" and the "lifting claw pushing force," adapting to the deformation requirements of sealing rings with different hardness.

[0011] As can be seen from the above technical solution, this utility model has the following beneficial effects:

[0012] 1. The multi-size sealing ring installation tool of this utility model forms a ring array by distributing the expanding claw and the lifting claw at intervals along the circumference. The two claws work together in the radial and axial directions respectively to achieve precise opening and non-destructive lifting of the sealing ring. At the same time, the adjustment component can simultaneously adjust the axial depth and radial concentricity of the workpiece. This effectively solves the problems of poor multi-size adaptability, low installation accuracy and insufficient workpiece adjustment efficiency in the prior art, and significantly improves the positioning accuracy and operation efficiency of sealing ring installation.

[0013] 2. The multi-size sealing ring installation tool of this utility model features a structure design in which the adjusting part is radially adjustable along the main body and mounted on the moving part. This allows the protrusion position to be flexibly adjusted to accommodate sealing rings of different sizes. Combined with the arc-shaped protrusion design of the support part, it can prevent damage to the sealing ring when it is opened. In addition, the air regulating valves on the first and second air inlet valves can independently adjust the two air pressures, realizing differentiated control of the "expanding claw opening force" and the "lifting claw pushing force". This comprehensively solves the problems of easy damage to the sealing ring and insufficient operating precision in the prior art, ensuring the installation quality of the sealing ring and the reliability of the equipment. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of a multi-size sealing ring installation tool of this utility model in the open state of the sealing ring;

[0015] Figure 2 This is a schematic diagram of the initial state structure of a multi-size sealing ring installation tool according to the present invention;

[0016] Figure 3 for Figure 2 Enlarged view of region A in the middle;

[0017] Figure 4 This is a schematic diagram of the adjustment component structure in a multi-size sealing ring installation tool of this utility model;

[0018] Figure 5 for Figure 4 Enlarged view of region B in the middle;

[0019] Figure 6 Example image of the workpiece.

[0020] Explanation of reference numerals on the accompanying drawings:

[0021] 1-Main body, 11-First air inlet, 12-Second air inlet, 13-Trapezoidal groove;

[0022] 2-Claw assembly, expanding claw-21, lifting claw-22, column-23, moving part-212, adjusting part-213, support part-2111, supporting part-2112;

[0023] 3-Adjusting assembly, adjusting screw-31, frustum-33, first knob-32, cylindrical ring-34, adjusting screw-35, second knob-351;

[0024] 4-First intake valve;

[0025] 5-Second intake valve. Detailed Implementation

[0026] The present invention will be further explained below with reference to the accompanying drawings and specific embodiments.

[0027] Example 1

[0028] like Figure 1-5 As shown, a multi-size sealing ring installation tool, and Figure 6 The diagram shows an example of a certain type of workpiece. The main body 1 is cylindrical, with a first air inlet 11 and a second air inlet 12 on its outer side wall. The first air inlet 11 is connected to a first air inlet valve 4, and the second air inlet 12 is connected to a second air inlet valve 5. Both air inlet valves are equipped with air regulating valves. A trapezoidal groove 13 is provided radially inside the main body 1 for cooperating with the moving part 212 of the claw assembly 2.

[0029] The claw assembly 2 is located at the upper end of the main body 1, with six expanding claws 21 and six lifting claws 22 spaced out along the circumference. Each expanding claw 21 includes a moving part 212, an adjusting part 213, and a protrusion 211: the moving part 212 is a trapezoidal wedge block that slides in conjunction with the trapezoidal groove 13 of the main body 1 and can move radially along the main body 1; the adjusting part 213 is bolted to the front end of the moving part 212 (the end away from the outer wall of the main body 1) and can be adjusted radially; the protrusion 211 is located at the front end of the adjusting part 213 and includes an upper support part 2111 and a lower support part 2112. The support part 2111 has an arc-shaped curved surface, and the support part 2112 is a horizontal support surface. In the initial state, the six expanding claws 21 are closed, and the support parts 2112 of each protrusion 211 converge to form a column 23 ( Figure 2 , 3 The sealing ring is fitted onto the column 23 and placed on the support 2112. When air enters through the first air inlet 11, the expanding claw 21 expands radially, and the arc-shaped surface of the support 2111 abuts against the inner ring of the sealing ring, expanding the sealing ring into a hexagonal shape. Figure 1 At this time, the workpiece extends into the sealing ring, the second air inlet 12 intakes air, the lifting claw 22 lifts axially, pushes the sealing ring out from the protrusion 211, and the sealing ring retracts and is stuck into the installation groove of the workpiece.

[0030] Adjustment component 3 ( Figure 4 The device is axially threaded through the main body 1, including: an adjusting screw 31: axially threaded to the main body 1, one end extending below the main body 1 and fitted with a first knob 32, the other end connected to a frustum 33; a frustum 33: located above the main body 1, with a cylindrical ring 34 on its top surface, the workpiece placed inside the cylindrical ring 34; and an adjusting screw 35 (…). Figure 5 Two adjusting screws 35 are radially inserted into the ring wall of the cylindrical ring 34. A second knob 351 is installed on the outer end of each adjusting screw 35, and the inner end can abut against the outer wall of the workpiece. By rotating the first knob 32, the adjusting screw 31 drives the frustum 33 to move axially, adjusting the installation depth of the workpiece; by rotating the second knob 351, the adjusting screw 35 extends and retracts radially, calibrating the radial concentricity of the workpiece.

[0031] Workflow:

[0032] According to the size of the sealing ring, the radial position of the adjusting part 213 of the expanding claw 21 is adjusted by bolts so that the diameter of the column 23 is adapted to the inner diameter of the sealing ring in the initial state;

[0033] The sealing ring is fitted onto the support portion 2112 of the column 23. Figure 2 , 3 );

[0034] When the first intake valve 4 is opened, the expander claw 21 expands radially, and the support 2111 expands the sealing ring into a hexagonal shape. Figure 1 );

[0035] Place the workpiece into the cylindrical ring 34 and adjust the position of the workpiece using the first knob 32 and the adjusting screw 35.

[0036] Open the second air intake valve 5, and the lifting claw 22 pushes the sealing ring away from the protrusion 211. The sealing ring retracts and snaps into the workpiece mounting groove, completing the installation.

[0037] The above embodiments are exemplary and are intended to illustrate the technical concept and features of this utility model, so that those skilled in the art can understand the content of this utility model and implement it accordingly. They should not be construed as limiting the scope of protection of this utility model. All equivalent changes or modifications made in accordance with the spirit and essence of this utility model should be covered within the scope of protection of this utility model.

Claims

1. A multi-size sealing ring installation tool for installing sealing rings into workpieces, characterized in that: include: The main body (1) is cylindrical, and a first air inlet (11) and a second air inlet (12) are provided on its outer side wall. The claw assembly (2) is located at the upper end of the main body (1) and includes at least three expanding claws (21) and at least three lifting claws (22). The expanding claws (21) and lifting claws (22) are distributed in a circumferential direction to form a ring array. The expanding claws (21) move radially back and forth along the main body (1) and have a protrusion (211) at the end away from the outer wall. The lifting claws (22) move axially back and forth along the main body (1). In the initial state, the expanding claws (21) are closed and the protrusions (211) are gathered to form a column (23). The sealing ring is fitted on the column (23). Then, the first air inlet (11) is inlet, the expanding claws (21) move radially to expand, the sealing ring is opened, and the workpiece is inserted into the sealing ring. The second air inlet (12) is inlet, the lifting claws (22) are raised, and the sealing ring is pushed out of the protrusion (211). The sealing ring retracts and is inserted into the mounting groove of the workpiece. Adjustment component (3), which is axially inserted into the main body (1) to adjust the axial and radial position of the workpiece along the main body (1).

2. The multi-size sealing ring installation tool according to claim 1, characterized in that: The expanding claw (21) also includes a moving part (212) and an adjusting part (213). The protrusion (211) is located at the end of the adjusting part (213) away from the outer wall. The adjusting part (213) is radially adjustable on the moving part (212) by bolts along the main body (1). The moving part (212) is a trapezoidal wedge block that cooperates with the trapezoidal groove (13) provided radially on the main body (1).

3. The multi-size sealing ring installation tool according to claim 2, characterized in that: The protrusion (211) includes a support (2111) and a support (2112). The support (2111) is located above the support (2112). In the initial state, the expanding claw (21) is closed and the sealing ring is placed on the support (2112). When expanding, the support (2111) abuts against the inner ring of the sealing ring. The support (2111) is arc-shaped.

4. The multi-size sealing ring installation tool according to claim 1, characterized in that: The adjustment assembly (3) includes an adjustment screw (31), which is threadedly connected to the main body (1) along its axial direction. Both ends of the adjustment screw (31) extend out of the main body (1). A first knob (32) is installed at one end of the adjustment screw (31) away from the claw assembly (2), and a frustum (33) is installed at the other end. When the sealing ring is opened, the workpiece extends into the sealing ring and is placed on the frustum (33).

5. A multi-size sealing ring installation tool according to claim 4, characterized in that: The truncated cone (33) is also provided with a cylindrical ring (34), and the workpiece is placed inside the cylindrical ring (34). A set of adjusting screws (35) are passed through the ring wall of the cylindrical ring (34) from the outside to the inside. The adjusting screws (35) are threadedly connected to the ring wall. One end of the adjusting screw (35) located on the outside of the ring wall is provided with a second knob (351), and the other end is in contact with the workpiece.

6. The multi-size sealing ring installation tool according to claim 4, characterized in that: A first intake valve (4) is installed on the first intake port (11), and a second intake valve (5) is installed on the second intake port (12). Both the first intake valve (4) and the second intake valve (5) are equipped with an air regulating valve.

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