A tool for pressing filler of plunger pump

Abstract

The utility model relates to the technical field of plunger pump maintenance, and in particular to a tool for pressing a plunger pump filler, wherein a support seat has a cylindrical cavity with an upper end opening; a guide rod is arranged at the bottom center of the cylindrical container; the main body of the inner support structure is a cylindrical structure; the lower end of the main body has an annular protrusion; a guide hole is arranged on the inner support structure; the guide hole is sleeved on the guide rod and can slide up and down relative to the guide rod; the spacing between the main body and the cylindrical cavity forms an annular compression cavity; a positioning ring, a spacing support ring and a pressure-bearing ring are arranged in the compression cavity from bottom to top in sequence; an elastic member is placed between the support seat and the inner support structure; a stamping and forming cylinder can be inserted into the compression cavity and driven to move up and down along the compression cavity; a hydraulic drive device is connected to the stamping and forming cylinder to drive the stamping and forming cylinder to move up and down. The use of the utility model can extend the use time of the filler, can press multiple fillers at a time, and improve the pressing efficiency.

Description

Technical Field

[0001] The utility model relates to the technical field of plunger pump maintenance, in particular to a tool for pressing a filler of a plunger pump. Background Art

[0002] High-pressure plunger pumps are suitable for high-pressure cleaning fluid descaling, oil field water injection, boiler water supply, hydraulic mechanical power source, etc. in the petroleum, chemical, pharmaceutical and other industries. In the production of polysilicon, after the silicon rod completes a growth cycle in the reduction furnace, it is necessary to use a high-pressure plunger pump to provide liquid cleaning agent to clean the bell jar. The cleaning medium is 20% sodium hydroxide solution, which is highly corrosive. During the use of the high-pressure plunger pump, the friction between the plunger and the sealing packing will cause the packing seal to fail. In addition, the corrosion of the packing by sodium hydroxide will shorten the service life of the packing, and the packing needs to be purchased and replaced frequently. Since the purchase cost of ready-made packing is high, the service life is short, and the maintenance cost is increased when replacing it, it affects production efficiency and increases production costs. Utility Model Content

[0003] In view of this, the utility model provides a tool for pressing plunger pump fillers, the main purpose of which is to reserve a larger compression margin when making fillers, extend the service life of the fillers, and reduce the frequency of maintenance; multiple fillers can be pressed at one time, improving the pressing efficiency and reducing the pressing cost.

[0004] In order to achieve the above purpose, the utility model mainly provides the following technical solutions:

[0005] The embodiment of the utility model provides a tool for pressing a plunger pump filler, comprising: a support seat, a guide rod, an inner support structure, an elastic member, a positioning ring, a spacer support ring, a pressure ring, a stamping and forming cylinder and a hydraulic drive device;

[0006] The support seat has a cylindrical cavity with an upper opening;

[0007] The guide rod is fixedly arranged at the bottom center of the cylindrical container and is coaxially arranged with the cylindrical container;

[0008] The main body of the inner support structure is a cylindrical structure; the lower end of the main body has an annular protrusion; the annular protrusion is coaxially distributed with the main body; a guide hole is provided on the inner support structure; the guide hole is coaxially distributed with the main body;

[0009] The guide hole is sleeved on the guide rod and can slide up and down relative to the guide rod; the inner support structure is placed in the cylindrical cavity and can slide up and down relative to the cylindrical cavity; the outer wall of the annular protrusion is adapted to the inner wall of the cylindrical cavity;

[0010] The distance between the main body and the cylindrical cavity forms an annular compression cavity; the positioning ring, the spacing support ring and the pressure ring are arranged in the compression cavity from bottom to top in sequence; the spacing support ring is one, two or more; the space between the positioning ring, the spacing support ring and the pressure ring is used to fill the filler to be pressed;

[0011] The elastic member is disposed between the support seat and the inner support structure, and is used to provide the inner support structure with an axially upward driving force along the cylindrical cavity;

[0012] The stamping and forming cylinder can be inserted into the compression chamber and driven to move up and down along the compression chamber to press the filler through the pressure ring;

[0013] The hydraulic drive device is connected to the stamping and forming cylinder and is used to drive the stamping and forming cylinder to move up and down.

[0014] Furthermore, the upper end of the main body is higher than the upper end of the cylindrical cavity.

[0015] Furthermore, the edge of the upper end of the main body is a rounded structure.

[0016] Furthermore, the pressure of the hydraulic drive device can be adjusted.

[0017] Furthermore, a pressure sensor is provided between the hydraulic drive device and the stamping forming cylinder.

[0018] Furthermore, the elastic component is a compression spring.

[0019] By means of the above technical solution, the tool for pressing the filler of the plunger pump of the utility model has at least the following advantages:

[0020] A large compression margin can be reserved when making fillers, which can extend the service life of the fillers and reduce the frequency of maintenance; multiple fillers can be pressed at one time, which improves the pressing efficiency and reduces the pressing cost.

[0021] The above description is only an overview of the technical solution of the utility model. In order to more clearly understand the technical means of the utility model and implement it according to the contents of the specification, the following is a detailed description of the preferred embodiments of the utility model in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 A schematic diagram of a tool for pressing a plunger pump filler provided in an embodiment of the utility model.

[0023] As shown in the figure:

[0024] 1 is a support seat, 2 is an inner support structure, 2-1 is an annular protrusion, 2-2 is a main body, 3 is a stamping tube, 4 is a guide rod, 5 is an elastic member, 6 is a positioning ring, 7 is a spacing support ring, 8 is a pressure ring, 9 is a hydraulic drive device, and 10 is a filler. DETAILED DESCRIPTION

[0025] In order to further explain the technical means and effects adopted by the utility model to achieve the predetermined utility model purpose, the specific implementation methods, structures, features and effects of the utility model application are described in detail below in conjunction with the accompanying drawings and preferred embodiments. In the following description, different "one embodiment" or "embodiment" does not necessarily refer to the same embodiment. In addition, specific features, structures, or characteristics in one or more embodiments may be combined in any suitable form.

[0026] like Figure 1 As shown, a tool for pressing a filler of a plunger pump proposed in an embodiment of the utility model comprises: a support seat 1, a guide rod 4, an inner support structure 2, an elastic member 5, a positioning ring 6, a spacing support ring 7, a pressure ring 8, a stamping cylinder 3 and a hydraulic drive device 9; the support seat 1 has a cylindrical cavity with an upper end opening, which is used to accommodate the inner support structure 2 and the filler 10; the guide rod 4 is fixedly arranged at the bottom center of the cylindrical container and is coaxially arranged with the cylindrical container; the lower end of the guide rod 4 is fixed on the support seat 1, and the guide rod 4 extends upward. The main body 2-2 of the inner support structure 2 is a cylindrical structure; in this embodiment, the upper end of the main body 2-2 is higher than the upper end of the cylindrical cavity, so as to facilitate the packing 10 to be coiled on the main body 2-2, and multiple packings 10 can be added quickly. Further preferably, the edge of the upper end of the main body 2-2 is a rounded structure, which is conducive to the stamping cylinder 3 to quickly align with the compression cavity and can avoid accidental damage to the filler 10.

[0027] The lower end of the main body 2-2 has an annular protrusion 2-1; the annular protrusion 2-1 is coaxially distributed with the main body 2-2; the annular protrusion 2-1 and the main body 2-2 are integrated. A guide hole is provided on the inner support structure 2; the guide hole is coaxially distributed with the main body 2-2; the guide hole is mounted on the guide rod 4 and can slide up and down relative to the guide rod 4; the guide rod 4 guides the inner support structure 2. The inner support structure 2 is placed in a cylindrical cavity and can slide up and down relative to the cylindrical cavity; the outer wall of the annular protrusion 2-1 is adapted to the inner wall of the cylindrical cavity; the distance between the main body 2-2 and the cylindrical cavity forms an annular compression cavity; the compression cavity is used to accommodate the filler 10 to be pressed. The positioning ring 6, the spacing support ring 7 and the pressure ring 8 are arranged in the compression cavity from bottom to top in sequence; the spacing support ring 7 is one, two or more; the number of spacing support rings 7 can be determined according to the number of fillers 10 to be pressed. The spacer ring 6, the spacing support ring 7, and the pressure ring 8 are used to fill the filler 10 to be pressed; the elastic member 5 is placed between the support seat 1 and the inner support structure 2, and is used to give the inner support structure 2 an axial upward driving force along the cylindrical cavity, so that when the stamping and forming cylinder 3 does not apply downward force, the elastic member 5 can push the inner support structure 2 to move upward, thereby driving the positioning ring 6, the spacing support ring 7, the pressure ring 8 and the filler 10 in the compression cavity to move upward, so as to facilitate the removal of the filler 10. In this embodiment, the elastic member 5 is a compression spring, which has a simple and reliable structure and low cost. The stamping and forming cylinder 3 can be inserted into the compression cavity and driven to move up and down along the compression cavity, and is used to press the filler 10 through the pressure ring 8; the hydraulic drive device 9 is connected to the stamping and forming cylinder 3, and is used to drive the stamping and forming cylinder 3 to move up and down. The pressure of the hydraulic drive device 9 can be adjusted to facilitate the operator to make a filler 10 of appropriate pressure according to the needs of the site, and the compression margin can be reserved as needed. In this embodiment, a pressure sensor is preferably provided between the hydraulic drive device 9 and the stamping cylinder 3 to facilitate the operator to control the pressure, which is beneficial for batch operation.

[0028] An embodiment of the utility model provides a tool for pressing a plunger pump filler, which can control the pressure holding time according to actual needs, reserve a large compression margin when making the filler 10, and continue to pre-tighten the filler 10 gland after the seal of the filler 10 fails after a period of use. Since the compression margin is reserved during the early pressing, the effectiveness of the secondary pre-tightening seal is guaranteed, the service life of the filler 10 is extended, and the maintenance frequency is reduced; multiple fillers 10 can be pressed at one time, which improves the pressing efficiency and reduces the pressing cost.

[0029] In the description of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0030] The standard parts used in the utility model can all be purchased from the market, and special-shaped parts can be customized according to the instructions and the drawings. The specific connection methods of each part adopt the conventional means such as mature bolts, rivets, welding, etc. in the existing technology. The machinery, parts and equipment all adopt the conventional models in the existing technology, and the circuit connection adopts the conventional connection method in the existing technology, which will not be described in detail here.

[0031] The above is only a preferred embodiment of the present invention and does not constitute any form of limitation to the present invention. Any simple modification, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention still fall within the scope of the technical solution of the present invention.

Claims

1. A tool for pressing a plunger pump filler, characterized in that: It includes: a support seat, a guide rod, an inner support structure, an elastic member, a positioning ring, a spacing support ring, a pressure ring, a stamping cylinder and a hydraulic drive device; The support seat has a cylindrical cavity with an upper opening; The guide rod is fixedly arranged at the bottom center of the cylindrical cavity and is coaxially arranged with the cylindrical cavity; The main body of the inner support structure is a cylindrical structure; the lower end of the main body has an annular protrusion; the annular protrusion is coaxially distributed with the main body; a guide hole is provided on the inner support structure; the guide hole is coaxially distributed with the main body; The guide hole is sleeved on the guide rod and can slide up and down relative to the guide rod; the inner support structure is placed in the cylindrical cavity and can slide up and down relative to the cylindrical cavity; the outer wall of the annular protrusion is adapted to the inner wall of the cylindrical cavity; The distance between the main body and the cylindrical cavity forms an annular compression cavity; the positioning ring, the spacing support ring and the pressure ring are arranged in the compression cavity from bottom to top in sequence; the spacing support ring is one, two or more; the space between the positioning ring, the spacing support ring and the pressure ring is used to fill the filler to be pressed; The elastic member is disposed between the support seat and the inner support structure, and is used to provide the inner support structure with an axially upward driving force along the cylindrical cavity; The stamping and forming cylinder can be inserted into the compression chamber and driven to move up and down along the compression chamber to press the filler through the pressure ring; The hydraulic drive device is connected to the stamping and forming cylinder and is used to drive the stamping and forming cylinder to move up and down.

2. The tool for pressing a plunger pump filler according to claim 1, characterized in that: The upper end of the main body is higher than the upper end of the cylindrical cavity.

3. The tool for compressing a plunger pump filler according to claim 2, characterized in that: The edge of the upper end of the main body is a rounded structure.

4. The tool for compressing a plunger pump filler according to claim 1, characterized in that: The pressure of the hydraulic drive can be adjusted.

5. The tool for compressing a plunger pump filler according to claim 4, characterized in that: A pressure sensor is arranged between the hydraulic drive device and the stamping forming cylinder.

6. The tool for compressing a plunger pump filler according to claim 1, characterized in that: The elastic component is a compression spring.

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