CN219254689U - Three-station eccentric wheel press-fitting device - Google Patents

Abstract

The utility model discloses a three-station eccentric wheel press-fitting device, which belongs to the technical field of eccentric wheel press-fitting, and comprises an upper die handle, wherein a first hexagon screw is arranged in the upper die handle, an upper die holder is arranged at the bottom of the upper die handle, the upper die holder is connected with the upper die handle through a second hexagon screw, a step hole is arranged in the upper die holder, a shaft sleeve is arranged in the hole, a step hole is arranged in the shaft sleeve, a polyurethane mandrel is arranged in the step hole, threads are arranged on the outer circle of the shaft sleeve, a locking nut is fastened on the outer diameter of the shaft sleeve, and a backup nut and a gasket are arranged on the surface of a lower die holder.

Description

Three-station eccentric wheel press-fitting device

Technical Field

The utility model relates to eccentric wheel press fitting, in particular to a three-station eccentric wheel press fitting device, and belongs to the technical field of eccentric wheel press fitting.

Background

The eccentric wheel is characterized in that the center hole is in a D-shaped shape, the center of the D-shaped hole is vertical to the large end face, the small outer circle is vertical to the shoulder blade surface, the center hole and the axis of the small outer circle are in an inclined angle of 2-3.5 degrees, so that the small outer circle and the large end face are not in a vertical relationship, the eccentric wheel and an inner hole of a bearing are in interference fit, in the press fitting process, the stressed end face and the bearing center are not vertical, in order to ensure uniform stress in the press fitting process, the D-shaped positioning shaft is additionally arranged on the lower die holder, the eccentric wheel is required to be positioned and placed on the D-shaped positioning shaft in a direction, the upper press head is provided with a press head with an inclined angle of 2-3.5 degrees, the upper press head is basically parallel to the large end face, the upper press head cannot be replaced one by one, only 1 press head with a middle angle can be adopted, the inclined force can be generated, the eccentric wheel is very inconvenient to install in a fixed direction, and the efficiency is influenced.

So the three-station eccentric wheel press-fitting device is designed and produced so as to solve the problems.

Disclosure of Invention

The utility model aims to solve the technical problem of providing a three-station eccentric wheel press-fitting device, which can realize that 3 stations are adopted for one-time press-fitting, cancel the directional installation of an eccentric wheel, adopt a floating lower press head at the upper part, enable the lower press head to be in contact with the large end surface of the eccentric wheel in the falling process, change the direction at will, avoid the need of deliberately adjusting the angle, be convenient and quick, improve the efficiency, and solve the technical problems that the prior art has more angle varieties of the eccentric wheel, the upper press head can not be replaced one by one, only the press head with 1 compromise angle can be adopted, and the inclined force can be generated, so that the directional installation of the eccentric wheel is very inconvenient, and the efficiency is affected.

In order to solve the problems, the following technical scheme is provided:

the utility model provides a three-station eccentric wheel pressure equipment device, includes the upper die shank, the inside of upper die shank is provided with first hexagon screw, just the bottom of upper die shank is provided with the upper die base, through the second hexagon screw connection between upper die base and the upper die shank, set up the step hole in the upper die base, the axle sleeve has been seted up to the inside both sides of upper die base, the downthehole is arranged in to the axle sleeve, establish the step hole in the axle sleeve, the below of axle sleeve is provided with the polyurethane dabber, the polyurethane dabber is arranged in step hole and the axle sleeve excircle sets up the screw thread, fastening lock nut on the axle sleeve external diameter, lock nut's below is provided with the die holder, the surface of die holder is provided with and is equipped with tight nut, gasket, the inlayer of gasket is provided with the pressure head, the below of pressure head is provided with down, the joint of pressure head has the elastic connection round pin down.

Further, the polyurethane mandrel is in interference fit in the inner hole of the shaft sleeve, and a hollow hole is formed in the polyurethane mandrel.

Furthermore, the polyurethane mandrel is made of polyurethane.

Further, the center of the bottom of the upper pressure head is a steel ball, and 4 stepped holes are formed in the periphery of the bottom of the upper pressure head.

Further, the center of the top of the lower pressure head is a steel ball, and 4 stepped holes are formed in the periphery of the lower pressure head.

Further, the elastic connecting pins respectively penetrate through the stepped holes corresponding to the upper pressure head and the lower pressure head, and a certain pre-elongation is formed.

Further, the elastic connecting pin is made of rubber.

Compared with the prior art, the utility model has the beneficial effects that:

this application adopts 3 stations through the press fit once to cancel the directional installation of eccentric wheel, adopt the pressure head under the floating of upper portion, the pressure head is in the in-process that falls down with the big terminal surface contact of eccentric wheel down, the direction changes at will, need not to deliberately angle regulation, convenient and fast, raise the efficiency, solved because of the angle variety of eccentric wheel is more, can't accomplish the pressure head of changing one by one angle, can only adopt the pressure head of one of them compromise angle, can produce the tilting force, the eccentric wheel is decided the very inconvenient technical problem of directional installation.

Specific embodiments of the utility model are disclosed in detail below with reference to the following description and drawings, indicating the manner in which the principles of the utility model may be employed. It should be understood that the embodiments of the utility model are not limited in scope thereby. The embodiments of the utility model include many variations, modifications and equivalents within the spirit and scope of the appended claims.

Drawings

The accompanying drawings are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate the utility model and together with the embodiments of the utility model, serve to explain the utility model. In the drawings:

FIG. 1 is a schematic view of a high-efficiency eccentric press-fitting fixture of a three-station eccentric press-fitting device according to a preferred embodiment of the present utility model;

FIG. 2 is an enlarged schematic view of a portion of the efficient eccentric press-fitting jig of FIG. 1 at A of a three-position eccentric press-fitting apparatus according to a preferred embodiment of the present utility model;

fig. 3 is a schematic structural view of a lower die holder of a three-station eccentric press-fitting device according to a preferred embodiment of the present utility model.

In the figure: 1. an upper die handle; 2. a first hex screw; 3. the second hexagon screw is connected; 4. an upper die holder; 5. a shaft sleeve; 6. a lock nut; 7. a polyurethane mandrel; 8. a gasket; 9. an upper pressure head; 10. a lower pressure head; 11. a steel ball; 12. an elastic connection pin; 13. a lower die holder; 14. and (5) tightening the nut.

Description of the embodiments

The utility model is further described in connection with the following detailed description, in order to make the technical means, the creation characteristics, the achievement of the purpose and the effect of the utility model easy to understand.

As shown in fig. 1-3, the three-station eccentric wheel press-fitting device provided by the embodiment comprises an upper die shank 1, wherein a first hexagon screw 2 is arranged in the upper die shank 1, an upper die holder 4 is arranged at the bottom of the upper die shank 1, the upper die holder 4 is connected with the upper die shank 1 through a second hexagon screw 3, a stepped hole is formed in the upper die holder 4, shaft sleeves 5 are arranged on two sides of the inside of the upper die holder 4, the shaft sleeves 5 are arranged in the holes, stepped holes are formed in the shaft sleeves 5, polyurethane mandrels 7 are arranged below the shaft sleeves 5, the polyurethane mandrels 7 are arranged in the stepped holes, threads are arranged on the outer circles of the shaft sleeves 5, locking nuts 6 are fastened on the outer diameters of the shaft sleeves 5, lower die holders 13 are arranged below the locking nuts 6, a tightening nut 14 and a gasket 8 are arranged on the surface of the lower die holders 13, an upper pressing head 9 is arranged on the inner layer of the gasket 8, a lower pressing head 10 is arranged below the upper pressing head 9, and elastic connecting pins 12 are clamped by the lower pressing head 10.

In this embodiment, as shown in fig. 1-3, the polyurethane mandrel 7 is in interference fit with the inner hole of the shaft sleeve 5, and the polyurethane mandrel 7 is provided with a hollow hole, the polyurethane mandrel 7 is made of polyurethane, the center of the bottom of the upper pressure head 9 is a steel ball 11, 4 stepped holes are peripherally arranged, the center of the top of the lower pressure head 10 is a steel ball 11, 4 stepped holes are peripherally arranged, the elastic connecting pins 12 respectively penetrate through the stepped holes corresponding to the upper pressure head 9 and the lower pressure head 10, a certain pre-elongation is formed, and the elastic connecting pins 12 are made of rubber.

The application principle and the application flow of the utility model are as follows: 3 stations are adopted in one press fit, directional installation of the eccentric wheel is canceled, the floating lower pressing head 10 on the upper part is adopted, the lower pressing head 10 is contacted with the large end face of the eccentric wheel in the falling process, the direction is randomly changed, the angle does not need to be deliberately adjusted, and the press fit device is convenient and fast and improves the efficiency.

In the description of the present utility model, it should be noted that the directions or positional relationships indicated by the terms "upper", "lower", "inner", "outer", "front", "rear", "both ends", "one end", "the other end", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific direction, be configured and operated in the specific direction, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "provided," "connected," and the like are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to specific circumstances.

While the utility model has been described in connection with specific embodiments, it will be apparent to those skilled in the art that the description is intended to be illustrative and not limiting in scope. Various modifications and alterations of this utility model will occur to those skilled in the art in light of the spirit and principles of this utility model, and such modifications and alterations are also within the scope of this utility model.

Claims (7)

1. The utility model provides a three-station eccentric wheel pressure equipment device, its characterized in that, including last die shank (1), the inside of going up die shank (1) is provided with first hexagon screw (2), just the bottom of going up die shank (1) is provided with upper die base (4), through second hexagon screw connection (3) between upper die base (4) and last die shank (1), set up the step hole in upper die base (4), shaft sleeve (5) have been seted up to the inside both sides of upper die base (4), in the hole is arranged in shaft sleeve (5), establish the step hole in shaft sleeve (5), the below of shaft sleeve (5) is provided with polyurethane dabber (7), polyurethane dabber (7) are arranged in the step hole and the excircle of shaft sleeve (5) sets up the screw thread, fastening lock nut (6) on the external diameter of shaft sleeve (5), the below of lock nut (6) is provided with die holder (13), the surface of die holder (13) is provided with and is equipped with tight nut (14), gasket (8), the inlayer of gasket (8) is provided with pressure head (9), connect pressure head (10) below, pressure head (10) have, connect pressure head (10) below.

2. The three-station eccentric wheel press-fitting device according to claim 1, wherein the polyurethane mandrel (7) is in interference fit with an inner hole of the shaft sleeve (5), and the polyurethane mandrel (7) is internally provided with a hollow hole.

3. The three-station eccentric wheel press-fitting device according to claim 2, wherein the polyurethane mandrel (7) is made of polyurethane.

4. The three-station eccentric wheel press-fitting device according to claim 1, wherein the center of the bottom of the upper pressing head (9) is a steel ball (11), and 4 stepped holes are formed in the periphery.

5. The three-station eccentric wheel press-fitting device according to claim 1, wherein the center of the top of the lower pressing head (10) is a steel ball (11), and 4 stepped holes are formed in the periphery.

6. The three-station eccentric wheel press-fitting device according to claim 1, wherein the elastic connecting pin (12) penetrates through the corresponding stepped holes of the upper pressing head (9) and the lower pressing head (10) respectively and forms a certain pre-elongation.

7. The three-position eccentric wheel press-fitting device according to claim 1, wherein the elastic connecting pin (12) is made of rubber.

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