CN111376203A - Valve semi-axis pulling device - Google Patents
Valve semi-axis pulling device Download PDFInfo
- Publication number
- CN111376203A CN111376203A CN201811622851.4A CN201811622851A CN111376203A CN 111376203 A CN111376203 A CN 111376203A CN 201811622851 A CN201811622851 A CN 201811622851A CN 111376203 A CN111376203 A CN 111376203A
- Authority
- CN
- China
- Prior art keywords
- rod
- guide rod
- screw rod
- hole
- end part
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B27/00—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for
- B25B27/02—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for connecting objects by press fit or detaching same
- B25B27/026—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for connecting objects by press fit or detaching same fluid driven
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Fluid-Driven Valves (AREA)
Abstract
The invention belongs to the field of valve manufacturing, and particularly relates to a valve half shaft pulling device which comprises a guide rod, wherein a screw rod is integrally formed at one side end part of the guide rod, the screw rod is matched with a screw hole formed at the bottom of a half shaft to be pulled, an air cylinder is integrally arranged at the side of the guide rod, the air cylinder is parallel to the guide rod, the end part of a piston rod of the air cylinder is arranged at the same side as the screw rod, a moving plate is arranged at the end part of the piston rod, a through hole is formed in the middle of the moving plate, the inner diameter of the through hole is larger than the outer diameter of the screw rod, the moving plate is sleeved; and the movable plate is positioned at the position where the screw rod is connected with the guide rod in the contraction state of the piston rod.
Description
Technical Field
The invention belongs to the field of valve manufacturing, and particularly relates to a valve half shaft pulling device.
Background
In the existing valve structure, a structure for fixing a valve plate inside a valve body through two half shafts exists.
In the process of assembling the valve, when problems such as mounting problems and valve plate sealability occur, the two half shafts may need to be pulled out and assembled again. However, because the two half shafts are in interference fit with the valve body, the half shafts are difficult to pull out in the operation process.
At present, the pulling process aiming at the working procedures is generally carried out by adopting a manual reverse hammering mode. Such an operation mode has great inconvenience and needs cooperation of a plurality of persons. When the valve is pulled out, one or more persons fix the valve body according to the size of the valve, and the other person holds the hammer to beat, so that the labor consumption is great, and certain danger exists; furthermore, during hammering, it is difficult to control the force exerted by the axial direction of the half-shaft, and therefore damage may also be caused to the valve body itself and the half-shaft.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides the valve half shaft pulling device which is reasonable in structure, operated by one person and labor-saving.
The technical scheme adopted by the invention is as follows:
the utility model provides a device is pulled out to valve semi-axis which characterized in that: the pulling device comprises a guide rod, wherein a screw rod is integrally formed at one side end part of the guide rod, the screw rod is matched with a screw hole formed at the bottom of a half shaft to be pulled, an air cylinder is integrally arranged beside the guide rod, the air cylinder is parallel to the guide rod, the end part of a piston rod of the air cylinder is arranged at the same side as the screw rod, a movable plate is arranged at the end part of the piston rod, a through hole is formed in the middle part of the movable plate, the inner diameter of the through hole is larger than the outer diameter of the screw rod, the through hole is sleeved at the outer; and the movable plate is positioned at the position where the screw rod is connected with the guide rod in the contraction state of the piston rod.
The invention has the advantages and positive effects that:
according to the invention, the screw rod manufactured at the end part of the guide rod is matched with the screw hole manufactured at the bottom of the half shaft, in the use process, an operator holds the guide rod by hand to rotate circumferentially so as to fix the screw rod and the half shaft, after the screw rod completely extends into the half shaft, the position of the movable plate is in contact with the end face of the outer edge of the valve body, at the moment, the operator loosens the guide rod and controls the cylinder to move in the stroke, the distance between the movable plate and the fixed plate is increased, and the half shaft is pulled out.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a partial cross-sectional view of the moving plate portion of FIG. 1;
FIG. 3 is a schematic view of the present invention and the half-axle installed condition.
Detailed Description
The present invention is further illustrated by the following examples, which are intended to be illustrative, not limiting and are not intended to limit the scope of the invention.
The invention discloses a valve half shaft pulling device which is characterized by comprising a guide rod 3, wherein a screw rod 1 is integrally manufactured at one side end part of the guide rod, the screw rod is matched with a screw hole formed at the bottom of a half shaft to be pulled, an air cylinder 4 is integrally installed at one side of the guide rod, the air cylinder is parallel to the guide rod, a piston rod end part 7 of the air cylinder is arranged at the same side as the screw rod, a movable plate 2 is installed at the piston rod end part, a through hole 8 is formed in the middle of the movable plate, the inner diameter of the through hole is larger than the outer diameter of the screw rod, the through hole is sleeved at the outer side of the screw rod; and the movable plate is positioned at the position where the screw rod is connected with the guide rod in the contraction state of the piston rod.
In this embodiment, a fixing plate 5 is integrally installed on the outer side of the middle portion of the guide rod, and the fixing plate is fixedly installed on the bottom of the cylinder.
In this embodiment, the portion from the fixing plate to the rear end of the guide rod is provided as a hand-held portion 6, and the portion is provided with wear-resistant particles for increasing the friction force in the holding state, thereby facilitating the assembly of the screw and the half shaft.
The use process of the invention is as follows:
when the semi-axle valve is used, the screw rod manufactured at the end part of the guide rod is matched with the screw hole manufactured at the bottom of the semi-axle, an operator holds the guide rod by hand to rotate circumferentially in the use process, the screw rod and the semi-axle are further fixed, after the screw rod completely extends into the semi-axle, the position of the movable plate is required to be in contact with the end face of the outer edge of the valve body, at the moment, the operator loosens the guide rod and controls the cylinder to move in the stroke, the distance between the movable plate and the fixed plate is increased, and the semi-axle is further pulled out.
Claims (1)
1. The utility model provides a device is pulled out to valve semi-axis which characterized in that: the pulling device comprises a guide rod, wherein a screw rod is integrally formed at one side end part of the guide rod, the screw rod is matched with a screw hole formed at the bottom of a half shaft to be pulled, an air cylinder is integrally arranged beside the guide rod, the air cylinder is parallel to the guide rod, the end part of a piston rod of the air cylinder is arranged at the same side as the screw rod, a movable plate is arranged at the end part of the piston rod, a through hole is formed in the middle part of the movable plate, the inner diameter of the through hole is larger than the outer diameter of the screw rod, the through hole is sleeved at the outer; and the movable plate is positioned at the position where the screw rod is connected with the guide rod in the contraction state of the piston rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811622851.4A CN111376203A (en) | 2018-12-28 | 2018-12-28 | Valve semi-axis pulling device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811622851.4A CN111376203A (en) | 2018-12-28 | 2018-12-28 | Valve semi-axis pulling device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111376203A true CN111376203A (en) | 2020-07-07 |
Family
ID=71214853
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811622851.4A Pending CN111376203A (en) | 2018-12-28 | 2018-12-28 | Valve semi-axis pulling device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111376203A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113459035A (en) * | 2021-08-02 | 2021-10-01 | 济南隆超石油机械锻造有限公司 | Inner cylinder sleeve pulling tool for bimetal cylinder sleeve |
-
2018
- 2018-12-28 CN CN201811622851.4A patent/CN111376203A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113459035A (en) * | 2021-08-02 | 2021-10-01 | 济南隆超石油机械锻造有限公司 | Inner cylinder sleeve pulling tool for bimetal cylinder sleeve |
| CN113459035B (en) * | 2021-08-02 | 2022-08-05 | 济南隆超石油机械锻造有限公司 | Inner cylinder sleeve pulling tool for bimetal cylinder sleeve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20200707 |
|
| WD01 | Invention patent application deemed withdrawn after publication |