Pressure head and valve oil seal press fitting tool

Abstract

The pressing head comprises a shaft seat and the pressing head, a connector of the pressing head is detachably connected with the shaft seat, the pressing head comprises a column body, the protruding connector is arranged on the front end face of the column body, a second cavity and a first cavity are sequentially formed in the rear end face of the column body from outside to inside, and the first cavity is communicated with the second cavity. The second cavity and the first cavity are coaxially arranged, the diameter of the second cavity is larger than that of the first cavity, an insertion head is arranged at the bottom of the first cavity and extends backwards, and the head of the insertion head penetrates out of the second cavity. The utility model has the beneficial effects that the pressure head, the valve oil seal and the shaft seat are assembled, then the insertion head is inserted into the valve guide pipe, and the shaft seat is pressed forcibly, so that the valve oil seal is sleeved on the valve guide pipe, the whole process is simple to operate, the workload is reduced, the valve oil seal can be used on other types of machines by replacing a front end pressure head, and the cost is saved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a valve oil seal, in particular to a pressure head and valve oil seal pressure equipment frock. BACKGROUND

[0002] When the engine is in pressure equipment valve oil seal, need guarantee valve oil seal with valve guide pipe coaxial, do not appear pressure distortion, shearing and deformation, and whole operation process is as simple as possible, the valve oil seal pressure equipment frock without guiding and labor -saving structure, operation process needs to use hammer to knock, such knock will appear pressure distortion or shearing or deformation, and different frock is used to different machine type, such work load is big, and cost is also high. CONTENT OF UTILITY MODEL

[0003] The utility model aims at overcoming the shortcomings of prior art, provide a pressure head and valve oil seal pressure equipment frock.

[0004] The utility model discloses a pressure head, including the cylinder, the protruding connector is provided on the front end surface of cylinder, the second cavity and the first cavity are set up gradually from outside to inside on the rear end surface of cylinder, the second cavity and the first cavity are coaxial arrangement, and the diameter of second cavity is greater than the diameter of first cavity, the bottom of first cavity is set up and inserts the head, and the head of insertion head extends back, and the head of insertion head is worn and comes out second cavity.

[0005] Optionally, the head of the insertion head is a tapered head.

[0006] Optionally, the second cavity is provided with an outwardly inclined inclined surface at the entrance.

[0007] A valve oil seal pressure equipment frock, including the pressure head of axle seat, the connector of pressure head is detachably connected with axle seat.

[0008] Optionally, the connecting end of the axle seat is provided with a threaded hole, and the connecting head is provided with a threaded section, and the connecting head and the axle seat are detachably connected through the threads, and the front end surface of the cylinder is attached to the rear end surface of the axle seat.

[0009] Optionally, the axle seat is a T-shaped structure.

[0010] The utility model has the following advantages: the pressure equipment frock of the utility model, the pressure head, the valve oil seal and the axle seat are assembled, then the insertion head is inserted into the valve guide pipe, and the axle seat is pressed, and then the valve oil seal is sleeved on the valve guide pipe, the whole process is simple, the work load is reduced, and another front end pressure head can be used on other models, saving the cost. BRIEF DESCRIPTION OF DRAWINGS

[0011] Figure 1 It is structure schematic view for valve oil seal pressure equipment frock;

[0012] Figure 2 is a sectional view of a valve oil seal press-fit tool;

[0013] Figure 3 is a structural schematic view of a press head;

[0014] Figure 4 is a sectional view of a press head;

[0015] In the figure, 1 is a press head, 2 is a shaft seat, 11 is a column, 12 is a connecting head, 13 is an insertion rod, 14 is a conical head, 15 is a first cavity, 16 is a second cavity, and 17 is an inclined surface. DETAILED DESCRIPTION

[0016] In order to make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme in the embodiments of the present application will be described clearly and completely below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are some but not all of the embodiments of the present application. The components of the embodiments of the present application described and shown in the drawings herein can be arranged and designed in various different configurations.

[0017] Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the claimed present application, but only represents selected embodiments of the present application. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in the present application without creative labor are within the scope of protection of the present application.

[0018] It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict.

[0019] It should be noted that: similar reference numerals and letters represent similar items in the following drawings, therefore, once an item is defined in one drawing, it does not need to be further defined and explained in the subsequent drawings.

[0020] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this utility model is in use, or the orientation or positional relationship commonly understood by those skilled in the art. They are only used for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first," "second," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0021] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0022] like Figure 1 and Figure 2 As shown, a valve stem seal press-fitting fixture includes a bearing seat 2 and a press head 1. The connector 12 of the press head 1 is detachably connected to the bearing seat 2. In this embodiment, as shown... Figure 3 and Figure 4 As shown, the pressure head 1 includes a cylindrical body 11. A protruding connector 12 is provided on the front end face of the cylindrical body 11. This connector 12 is used to connect with the bearing seat 2. Therefore, the pressure head 1 can adjust the relevant dimensions of the guide shaft and the contact with the valve stem seal according to the different engine valve stem seal and valve guide size requirements, meeting the needs of different engine types. In this embodiment, the connecting end of the bearing seat 2 has a threaded hole, and the connector 12 has a threaded section. The connector 12 and the bearing seat 2 are detachably connected by threads, and the front end face of the cylindrical body 11 fits against the rear end face of the bearing seat 2. During installation, simply connect the connector 12 to the bearing seat 2 via a thread. Then, by rotating the bearing seat 2, the pressure head 1 can be rotated. At the same time, by pressing the bearing seat 2, pressure can also be applied to the pressure head 1, which facilitates the pressing of the valve stem seal onto the valve guide. In this embodiment, for ease of operation, the bearing seat 2 has a T-shaped structure, which facilitates the rotation of the bearing seat 2 and can better meet the force requirements of different engine models with cylinder head and valve guide arrangement structures. One end of the bearing seat 2 is designed as a T-shaped structure, and the extension length of the other end meets the requirements of the engine with the deepest cylinder head cavity. This design can meet the needs of different series of engines.

[0023] In the embodiment, as shown in Figure 4 The rear end surface of the column body 11 is sequentially provided with a second cavity 16 and a first cavity 15 from outside to inside, the second cavity 16 and the first cavity 15 are coaxially arranged, the diameter of the second cavity 16 is larger than that of the first cavity 15, the bottom of the first cavity 15 is provided with an insertion head 13, the insertion head 13 extends backward, and the head of the insertion head 13 penetrates out of the second cavity 16. During installation, the valve oil seal is sleeved on the insertion head 13, and the valve oil seal is pressed to enter the corresponding first cavity 15 and second cavity 16. Of course, the valve oil seal can also be directly inserted into the valve guide pipe without pressing, and then the shaft seat 2 is pressed, the valve oil seal enters the first cavity 15 and the second cavity 16 first, and then the valve oil seal is limited by the first cavity 15 and the second cavity 16. Since the valve oil seal is a rubber part, the insertion head 13 continues to be inserted into the valve guide pipe, so that the end of the valve guide pipe enters the valve oil seal, that is, the valve oil seal is sleeved on the valve guide pipe. When the valve oil seal is installed in place, the insertion head 13 can be withdrawn from the valve guide pipe. At this time, since the valve oil seal is in an expanded state, it can tightly hold the valve guide pipe under the action of the elastic recovery force. Therefore, the valve oil seal will not be separated from the valve guide pipe during the withdrawal of the insertion head 13. Moreover, during the pressing process, the valve oil seal is limited in the first cavity 15 and the second cavity 16, so that the valve oil seal can be prevented from being pressed and sheared during the pressing process.

[0024] In the embodiment, in order to better insert the insertion head 13 into the valve guide pipe, as shown in Figure 3 and Figure 4 The head of the insertion head 13 is a tapered head 14, and in order to facilitate the valve oil seal to smoothly enter the cavity of the column body 11, an outwardly inclined inclined surface 17 is formed at the inlet of the second cavity 16.

[0025] The working process of the utility model is as follows: the pressing head 1, the valve oil seal and the shaft seat 2 are assembled, then the insertion head 13 is inserted into the valve guide pipe, the shaft seat 2 is pressed, and then the valve oil seal is sleeved on the valve guide pipe. The whole process is simple in operation and reduces the workload. By replacing the front end pressing head 1, it can be used on other models to save cost.

[0026] Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments or make equivalent replacement to part of the technical features, and any modification, equivalent replacement, improvement, etc. within the spirit and principles of the utility model shall be included in the protection scope of the utility model.

Claims

1. A ram characterized by: The application relates to a column body, a convex connecting head is arranged on the front end surface of the column body, a second cavity and a first cavity are sequentially arranged from outside to inside on the rear end surface of the column body, the second cavity and the first cavity are coaxially arranged, the diameter of the second cavity is larger than that of the first cavity, an insertion head is arranged on the bottom of the first cavity, the insertion head extends backward, and the head of the insertion head penetrates through the second cavity.

2. A ram according to claim 1, characterized in that: The head of the insertion head is a conical head.

3. A ram according to claim 1 wherein: An outwardly inclined inclined surface is arranged at the inlet of the second cavity.

4. A valve seal press tool characterized by: The application further relates to a shaft base and the pressing head of any one of claims 1-3, the connecting head of the pressing head is detachably connected with the shaft base.

5. The valve oil seal press tool of claim 4, wherein: A threaded hole is arranged on the connecting end of the shaft base, a threaded section is arranged on the connecting head, the connecting head is detachably connected with the shaft base through the threads, and the front end surface of the column body is attached to the rear end surface of the shaft base.

6. The valve oil seal press tool of claim 5, wherein: The shaft base is a T-shaped structure.

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