Sealing ring opening device for water pump

Abstract

The utility model relates to the field of assembly equipment, in particular to a sealing ring opening device for a water pump. The embodiment of the utility model provides a sealing ring opening device for a water pump, which comprises a plurality of opening pieces and a plurality of guiding pieces, and the opening pieces are suitable for carrying sealing rings; and the distraction piece is arranged in the circumferential direction of the guiding piece in a surrounding mode, the inner side of the distraction piece abuts against the guiding piece, and the distraction piece is suitable for sliding in the radial direction of the guiding piece. According to the sealing ring opening device, the guiding piece is arranged and matched with the multiple opening pieces, after the sealing ring is placed in place, the opening air cylinder drives the guiding piece to ascend, the guiding piece can push all the opening pieces to be unfolded outwards, the sealing ring is opened, only one opening air cylinder is used as a power source of the whole device, the structure is simple, the cost is reduced, and the technology is simplified.

Description

Technical Field

[0001] The utility model relates to the field of assembly equipment, in particular to a sealing ring expansion device for a water pump. Background Art

[0002] During the assembly process of the water pump, the sealing ring with a large inner diameter needs to be stretched out and then installed in the specified position. However, unlike the sealing ring with a small inner diameter, the sealing ring with a large inner diameter in the prior art requires a more complicated mechanism, and it is impossible to use a single power source mechanism to complete the stretching action, resulting in high costs and the overall process effect is not as expected. Therefore, it is necessary to design a sealing ring stretching device for a water pump. Utility Model Content

[0003] The utility model aims to provide a sealing ring propping device for a water pump to solve the above problems.

[0004] In order to achieve the above-mentioned purpose, the embodiment of the utility model provides a sealing ring expansion device for a water pump, comprising: a plurality of expansion members and guide members, wherein the expansion members are suitable for carrying the sealing ring; and

[0005] The expansion member is arranged around the circumference of the guide member, the inner side of the expansion member abuts against the guide member, and the expansion member is suitable for sliding along the radial direction of the guide member.

[0006] Furthermore, the guide member comprises an expansion segment and a retaining segment, and the radius of the expansion segment gradually decreases in a direction away from the retaining segment;

[0007] The guide member is suitable for ascending and descending in the axial direction.

[0008] Furthermore, a linkage bearing is provided on one side of the expansion member facing the guide member, the linkage bearing is rotatably connected to the end of the expansion member, and one side of the linkage bearing is in contact with the guide member.

[0009] Furthermore, the spreading device further comprises a plurality of linear slide rails, one linear slide rail corresponding to one spreading member;

[0010] The linear slide rail extends along the radial direction of the guide member, and the expansion member is slidably connected to the linear slide rail.

[0011] Furthermore, the spreading device further comprises a plurality of elastic reset members, one elastic reset member corresponds to one linear slide rail;

[0012] The elastic reset member includes a positioning plate and an elastic member. The positioning plate is connected to the outer end of the linear slide rail, and the two ends of the elastic member are respectively connected to the positioning plate and the support member.

[0013] Furthermore, the expansion member has a clamping block, and the clamping block abuts against the inner wall of the sealing ring.

[0014] Furthermore, the side of the clamping block abutting against the sealing ring is in an arc shape.

[0015] Furthermore, the expansion members are evenly arranged along the circumference of the guide member.

[0016] Furthermore, the expansion device also includes an expansion cylinder, a movable end of the expansion cylinder is connected to the guide member, and a movable direction of the expansion cylinder is parallel to the axial direction of the guide member.

[0017] Furthermore, the expansion device also includes a mounting platform, and the expansion cylinder and the expansion member are both mounted on the mounting platform.

[0018] Compared with the prior art, the embodiments of the utility model have the following beneficial effects: by setting a guide member and cooperating with a plurality of expansion members, after the sealing ring is put in place, the expansion cylinder drives the guide member to rise, and the guide member can push each expansion member to expand outward, thereby expanding the sealing ring. The overall device only uses one expansion cylinder as a power source and has a simple structure, thereby reducing costs and simplifying the process. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0020] Figure 1 A first stereoscopic view of the opening device of the utility model is shown;

[0021] Figure 2 A second stereoscopic view of the opening device of the utility model is shown;

[0022] Figure 3 A cross-sectional view of the expansion device of the utility model is shown;

[0023] Figure 4 The schematic diagram of the structure of the propping member of the utility model is shown.

[0024] In the figure:

[0025] 1. Spreading piece; 11. Linkage bearing; 12. Block;

[0026] 2. guide member; 21. expansion section; 22. holding section;

[0027] 3. Linear guide rail; 31. Positioning plate; 32. Elastic member;

[0028] 4. Expand the cylinder; 5. Install the table. DETAILED DESCRIPTION

[0029] Now the utility model is further described in detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, which only illustrate the basic structure of the utility model in a schematic manner, and therefore only show the components related to the utility model.

[0030] Examples, such as Figures 1 to 4 As shown, this embodiment provides a sealing ring expansion device for a water pump, including: a mounting platform 5, the mounting platform 5 is divided into multiple layers, and a plurality of expansion members 1 and a guide member 2 can be installed on the mounting platform 5, and the plurality of expansion members 1 are arranged in a ring shape, and the guide member 2 is arranged on the inner side of each expansion member 1, and the surrounding axis of the expansion member 1 coincides with the axis of the guide member 2, that is, the distance from each expansion member 1 to the axis of the guide member 2 is equal. Each expansion member 1 can slide along the horizontal direction of the mounting platform 5, and the sliding direction is the radial direction of the guide member 2. At the same time, the guide member 2 can be lifted and lowered along the height direction of the mounting platform 5. On the other hand, the inner side of the expansion member 1 abuts against the guide member 2, and when the guide member 2 is lifted and lowered, it can be linked with the expansion member 1 to be synchronously expanded outward or contracted inward. A sealing ring is mounted on the expansion member 1, and then, during the process of the expansion member 1 expanding outward, the expansion member 1 can radially expand the sealing ring. Through the above arrangement, only by driving the guide member 2 to rise and fall, each expansion member 1 can be driven to expand the sealing ring. At the same time, only one power source is needed to drive the guide member 2. The overall structure is simple, which can effectively reduce costs and simplify the process.

[0031] In order to achieve the effect of driving each expansion member 1 to expand during the lifting process of the above-mentioned guide member 2, in this embodiment, as a preferred embodiment, the guide member 2 is in the shape of a hollow truncated cone, and the guide member 2 can be divided into an expansion section 21 and a holding section 22 according to the outer contour. The expansion section 21 and the holding section 22 are connected as one body, and the expansion section 21 is arranged above the holding section 22, and the expansion section 21 and the holding section 22 are arranged coaxially. The radius of the holding section 22 remains unchanged, while the radius of the expansion section 21 gradually decreases in the direction away from the holding section 22, that is, the top of the guide member 2 presents an inwardly contracted shape. In addition, the expansion members 1 are evenly arranged along the circumference of the guide member 2. Through the above arrangement, when the guide member 2 is in the initial position, the end of each expansion member 1 abuts against the top of the guide member 2, and as the guide member 2 rises, the expansion section 21 rises. During this process, the diameter of the contact portion between the expansion section 21 and the expansion member 1 gradually increases, thereby squeezing each expansion member 1 outward, and then each expansion member 1 pushes the sealing ring to expand. When the guide member 2 rises to the point where the expansion member 1 abuts against the retaining section 22, the expansion member 1 maintains its position unchanged, and the sealing ring remains expanded and stable, which is convenient for subsequent process operations.

[0032] A linkage bearing 11 is provided on one side of the expansion member 1 facing the guide member 2, the linkage bearing 11 is rotatably connected to the end of the expansion member 1, and one side of the linkage bearing 11 abuts against the guide member 2. The expansion member 1 as a whole abuts against the expansion segment 21 and the retaining segment 22 of the guide member 2 through the linkage bearing 11, which can effectively reduce the friction of the contact part to reduce wear and consumption.

[0033] In order to guide the sliding direction of the expansion member 1 and ensure the correctness of its sliding, in this embodiment, the expansion device further includes a plurality of linear slide rails 3, one linear slide rail 3 corresponding to one expansion member 1. The linear slide rail 3 extends along the radial direction of the guide member 2, and the expansion member 1 is slidably connected to the linear slide rail 3. Optionally, a slide groove is provided at the bottom of the expansion member 1, and the slide groove is adapted to the linear slide rail 3, so that the expansion member 1 can slide along the linear slide rail 3 reliably.

[0034] It should be noted that, after the guide member 2 has spread the various opening members 1, in order to facilitate the reset of the various opening members 1, in this embodiment, the opening device also includes a plurality of elastic reset members, one elastic reset member corresponds to one linear slide rail 3, and the elastic reset member includes a positioning plate 31 and an elastic member 32, the positioning plate 31 is connected to the outer end of the linear slide rail 3, and the two ends of the elastic member 32 are respectively connected to the positioning plate 31 and the opening member 1. The positioning plate 31 limits the maximum stroke of the opening member 1, and the positioning plate 31 serves as a mounting base for mounting the elastic member 32 and connecting the elastic member 32 to the opening member 1. After the opening member 1 is unfolded, the elastic member 32 is squeezed and the elastic member 32 contracts. When the guide member 2 is lowered, the elastic member 32 stretches, and then pushes the opening member 1 to reset, and maintains a state of abutting against the guide member 2. Preferably, the elastic member 32 is a spring.

[0035] In order to facilitate the mounting of the sealing ring on the expansion member 1, in this embodiment, as a preference, the expansion member 1 has a clamping block 12, and the clamping block 12 abuts against the inner wall of the sealing ring. At the same time, the side of the clamping block 12 abutting against the sealing ring is in an arc shape to ensure that the clamping block 12 fits the shape of the inner wall of the sealing ring without generating shear force on the sealing ring.

[0036] In order to drive the guide member 2 to rise and fall, in this embodiment, an expansion cylinder 4 is installed on the mounting platform 5, the movable end of the expansion cylinder 4 is connected to the bottom of the retaining section 22 of the guide member 2, and the movable direction of the expansion cylinder 4 is parallel to the axial direction of the guide member 2.

[0037] It is worth mentioning that the technical features such as other components involved in this utility model patent application should be regarded as prior art. The specific structure, working principle and possible control method and spatial layout method of these technical features can be selected by conventional methods in the field and should not be regarded as the invention point of this utility model patent. This utility model patent will not be further elaborated.

[0038] The above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. For those skilled in the art, the utility model may have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A sealing ring expansion device for a water pump, characterized in that: include: A plurality of expansion members (1) and guide members (2), wherein the expansion members (1) are suitable for carrying sealing rings; as well as The expansion member (1) is arranged around the circumference of the guide member (2), the inner side of the expansion member (1) abuts against the guide member (2), and the expansion member (1) is suitable for sliding along the radial direction of the guide member (2).

2. The sealing ring expansion device for a water pump according to claim 1, characterized in that: The guide member (2) comprises an expansion segment (21) and a retaining segment (22), and the expansion segment (21) has a radius that gradually decreases in a direction away from the retaining segment (22); The guide member (2) is suitable for lifting and lowering in the axial direction.

3. The sealing ring expansion device for a water pump according to claim 1, characterized in that: A linkage bearing (11) is provided on one side of the expansion member (1) facing the guide member (2); the linkage bearing (11) is rotatably connected to an end of the expansion member (1), and one side of the linkage bearing (11) is in contact with the guide member (2).

4. The sealing ring expansion device for a water pump according to claim 1, characterized in that: The spreading device further comprises a plurality of linear slide rails (3), one linear slide rail (3) corresponding to one spreading member (1); The linear slide rail (3) extends radially along the guide member (2), and the expansion member (1) is slidably connected to the linear slide rail (3).

5. The sealing ring expansion device for a water pump according to claim 4, characterized in that: The spreading device further comprises a plurality of elastic reset members, one elastic reset member corresponding to one linear slide rail (3); The elastic return member comprises a positioning plate (31) and an elastic member (32); the positioning plate (31) is connected to the outer end of the linear slide rail (3); and two ends of the elastic member (32) are respectively connected to the positioning plate (31) and the expansion member (1).

6. The sealing ring expansion device for a water pump according to claim 1, characterized in that: The expansion member (1) is provided with a clamping block (12), and the clamping block (12) abuts against the inner wall of the sealing ring.

7. The sealing ring expansion device for a water pump according to claim 6, characterized in that: The side of the clamping block (12) abutting against the sealing ring is in an arc shape.

8. The sealing ring expansion device for a water pump according to claim 1, characterized in that: The expansion members (1) are evenly arranged along the circumference of the guide member (2).

9. The sealing ring expansion device for a water pump according to claim 1, characterized in that: The expansion device further comprises an expansion cylinder (4), the movable end of the expansion cylinder (4) being connected to the guide member (2), and the movable direction of the expansion cylinder (4) being parallel to the axial direction of the guide member (2).

10. The sealing ring expansion device for a water pump according to claim 9, characterized in that: The spreading device further comprises a mounting platform (5), and the spreading cylinder (4) and the spreading member (1) are both mounted on the mounting platform (5).

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