CN215433479U - Press mounting device for directly driving servo valve pin - Google Patents
Press mounting device for directly driving servo valve pin Download PDFInfo
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- CN215433479U CN215433479U CN202121410026.5U CN202121410026U CN215433479U CN 215433479 U CN215433479 U CN 215433479U CN 202121410026 U CN202121410026 U CN 202121410026U CN 215433479 U CN215433479 U CN 215433479U
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Abstract
The utility model discloses a press-mounting device for a directly-driven servo valve pin, which comprises a base and a guide seat, wherein: the base is provided with a positioning groove, and the valve core to be installed and the flexible rod are placed in the positioning groove; a guide seat is arranged on one side of the base along a direction perpendicular to the length of the positioning groove, the rear section in the guide seat is a threaded hole, the front section in the guide seat is a working hole communicated with the threaded hole, a plunger capable of adjusting the position through a screw rod is assembled in the threaded hole, and the front end of the plunger is inserted into the working hole; a placing groove communicated with the working hole is formed in the side surface of the guide seat and is used for placing and adjusting the position of the pin; and a positioning rod which can penetrate through a pin hole in the valve core and is inserted into the working hole is arranged on the other side of the base. According to the utility model, by designing a set of standard pin press-fitting tools, the repeated installation process of the pin can be eliminated, the risks of scrapping or scratching the pin and the like are avoided, and the installation efficiency and the survival rate are improved.
Description
Technical Field
The utility model relates to a direct drive servo valve technology, in particular to a press mounting device for a direct drive servo valve pin for connecting a valve core and a flexible rod in the assembly process of the direct drive servo valve.
Background
The servo valve usually adopts a slide valve port with a non-full-circumference opening, is composed of various throttle grooves and combinations thereof, has easily controlled area gradient and wide flow regulation range, can ensure that a hydraulic actuator obtains good motion performance, and is widely applied to servo control systems of position, speed, force and the like as an important control element.
The conventional process of directly driving the servo valve mounting pin is as follows:
the valve core and the flexible rod are assembled into a whole to ensure that the pin holes on the valve core are aligned with each other, and then the valve core and the flexible rod are fixed by bench vice to keep the pin holes vertically upward, and the pin is knocked into the pin holes by a hammer. This process requires care that the pin cannot be driven too deeply and it must be ensured that both ends of the pin are slightly below the pin aperture.
Above-mentioned traditional pin pressure equipment process wastes time and energy, relies on operating personnel's experience, leads to the fact scrapping of pin and the relapse of installation process because of misoperation easily, does not conform to the standardized requirement of direct drive servovalve assembly and debugging process.
Disclosure of Invention
The utility model aims at the problem that the traditional pin installation method is time-consuming and labor-consuming in the installation and adjustment of the direct-drive servo valve, and the pin press-mounting device of the direct-drive servo valve is designed, so that the pin installation efficiency and the survival rate are improved.
In order to realize the task, the utility model adopts the following technical scheme:
a sub-press fitting device for a direct drive servo valve pin comprises a base and a guide seat, wherein:
the base is provided with a positioning groove, and the valve core to be installed and the flexible rod are placed in the positioning groove;
a guide seat is arranged on one side of the base along a direction perpendicular to the length of the positioning groove, the rear section in the guide seat is a threaded hole, the front section in the guide seat is a working hole communicated with the threaded hole, a plunger capable of adjusting the position through a screw rod is assembled in the threaded hole, and the front end of the plunger is inserted into the working hole;
a placing groove communicated with the working hole is formed in the side surface of the guide seat and is used for placing and adjusting the position of the pin; and a positioning rod which can penetrate through a pin hole in the valve core and is inserted into the working hole is arranged on the other side of the base.
Furthermore, one side of the plunger is provided with an ejector rod, and the longitudinal section of the plunger is of a T-shaped structure; limiting blocks are symmetrically arranged on two sides of the plunger, and limiting grooves matched with the limiting blocks are formed in the inner wall of the threaded hole along the axial direction.
Further, the threaded hole, the working hole and the ejector rod are coaxially arranged.
Furthermore, the positioning groove on the base is a groove formed in the base from the top surface of the base, and two ends of the positioning groove are through; the cross section of constant head tank is V type structure.
Furthermore, the front end of the positioning rod is provided with a thin section, the outer diameter of the thin section is smaller than that of the positioning rod, and the outer diameter of the positioning rod is larger than the inner hole of the pin, so that the thin section can be inserted into the pin.
Furthermore, a round hole coaxial with the working hole is formed in the side face of the base and used for inserting the positioning rod.
Compared with the prior art, the utility model has the following technical characteristics:
according to the utility model, a set of standard pin press-fitting tools is designed to replace the traditional manual installation operation, so that the repeated installation process of the pins can be eliminated, the risks of scrapping or scratching and the like of the pins can be avoided, the installation efficiency and the survival rate can be improved, and the standardization and the normalization of the assembly process of the directly driven servo valve can be facilitated.
Description of the drawings:
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is an axial cross-sectional view of the present invention;
fig. 3 is a schematic cross-sectional view of a portion of the shoe.
The reference numbers in the figures illustrate: the device comprises a pin 1, a guide seat 2, a lead screw 3, a plunger 4, a positioning rod 5, a valve core 6, a flexible rod 7, a base 8, a placing groove 9, a positioning groove 10, a working hole 11 and an ejector rod 12.
Detailed Description
Referring to fig. 1, the present invention discloses a press-fitting device for directly driving a servo valve pin, comprising a base 8 and a guide seat 2, wherein:
a positioning groove 10 is formed in the base 8, and the valve core 6 to be installed and the flexible rod 7 are placed in the positioning groove 10;
a guide seat 2 is arranged on one side of the base 8 along a direction perpendicular to the length of the positioning groove 10, the rear section in the guide seat 2 is a threaded hole, the front section is a working hole 11 communicated with the threaded hole, a plunger 4 capable of adjusting the position through a screw rod 3 is assembled in the threaded hole, and the front end of the plunger 4 is inserted into the working hole 11;
a placing groove 9 communicated with the working hole 11 is formed in the side surface of the guide seat 2 and used for placing and adjusting the position of the pin 1; and a positioning rod 5 which can pass through a pin 1 hole on the valve core 6 and be inserted into the working hole 11 is arranged on the other side of the base 8.
Wherein, one side of the plunger 4 is provided with a mandril 12, and the longitudinal section of the plunger 4 is of a T-shaped structure; limiting blocks are symmetrically arranged on two sides of the plunger 4, and limiting grooves matched with the limiting blocks are formed in the inner wall of the threaded hole along the axial direction; under the action of the screw rod 3, the plunger 4 can only move along the axial direction of the threaded hole.
In the scheme, the threaded hole, the working hole 11 and the ejector rod 12 are coaxially arranged.
In order to prevent the valve core 6 from rotating in the pressing process of the pin 1, the positioning groove 10 on the base 8 is a groove formed from the top surface of the base 8 to the inside of the base 8, and two ends of the positioning groove 10 are through; the cross section of the locating slot 10 is of a V-shaped structure, and the valve core 6 is tightly propped against the V-shaped surface under the action of pressure and cannot rotate.
The front end of the positioning rod 5 is provided with a thin section, the outer diameter of the thin section is smaller than that of the positioning rod 5, and the outer diameter of the positioning rod 5 is larger than the inner hole of the pin 1, so that the thin section can be inserted into the pin 1. In the pressing-in process, as the body of the positioning rod 5 is positioned in the hole of the pin 1 on the valve core 6, when the plunger 4 pushes the pin 1 to move, the positioning rod 5 plays a role in positioning and guiding due to the limitation of the hole of the pin 1, and meanwhile, the thin section of the positioning rod 5 ensures that the pin 1 and the positioning rod 5 are coaxial all the time.
A round hole coaxial with the working hole 11 is formed in the side surface of the base 8 and used for inserting the positioning rod 5.
The installation process of the middle pin provided by the utility model is as follows:
aligning rectangular limiting blocks at two ends of the plunger 4 with limiting grooves in a threaded hole in the guide seat 2, installing the plunger 4 into the threaded hole, and adjusting the position to ensure that the ejector rod 12 of the plunger 4 can completely enter the working hole 11; the valve core 6 and the flexible rod 7 are placed in a positioning groove 10 of the base 8; the pin 1 to be installed is placed into the working hole 11 from the placing groove 9 on the upper side face of the guide seat 2, and the direction of the pin 1 is slightly adjusted by means of a straight screwdriver, so that the alignment of the opening suture line of the pin 1 and the axial direction of the flexible rod 7 is ensured; inserting a positioning rod 5 from a round hole at the other end of the base 8, enabling the positioning rod 5 to enter a working hole 11 on the guide seat 2 after passing through a pin 1 hole on the valve core 6, enabling a thin section of the head part to enter an inner hole of the pin 1, enabling a step surface at the front end of the positioning rod 5 to be tightly propped against an end surface of the pin 1, and aligning the pin 1 hole with the working hole 11 on the base 8 in the process by slightly rotating the valve core 6 to ensure that the positioning rod 5 does not bear load in the radial direction; the screw 3 is then rotated to push the plunger 4, thereby progressively pressing the pin 1 into the pin 1 hole in the valve core 6. The depth of the pin 1 pressed into the valve core 6 is observed from the opening of the positioning groove 10 of the base 8, and the end face of the pin 1 is ensured to be slightly lower than the hole of the pin 1. The pin 1 on the valve core 6 in the other direction is installed according to the same process.
The device of the utility model has the advantages that: the pin 1 can be always kept perpendicular to the hole of the pin 1 in the pressing-in process under the guidance of the positioning rod 5, and meanwhile, the pin 1 only bears the thrust in the axial direction based on the driving mode of the screw rod 3 and the plunger 4.
The structural design of the utility model avoids the situation that the pin 1 cannot be pressed in due to the misalignment of the axes of the holes of the pin 1 in the traditional manual installation operation; on the other hand, the screw rod 3 provides driving force, so that the pin 1 can be guaranteed to be subjected to uniform thrust in the pressing-in process, large impact force generated when the pin 1 is knocked in through a hammer in the traditional manual installation operation is replaced, the possibility that the pin 1 is deformed and scratched under a large load is avoided, the installation efficiency and survival rate of the pin 1 are effectively improved, and the screw rod has certain significance for standardization of a direct drive servo valve installation and adjustment process.
The above embodiments are only used for illustrating the technical solutions of the present application, and not for limiting the same; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equally replaced; such modifications and substitutions do not substantially depart from the spirit and scope of the embodiments of the present application, and are intended to be included within the scope of the present application.
Claims (6)
1. The utility model provides a sub-pressure equipment device of direct drive servovalve pin which characterized in that, includes base (8) and guide holder (2), wherein:
a positioning groove (10) is formed in the base (8), and the valve core (6) to be installed and the flexible rod (7) are placed in the positioning groove (10);
a guide seat (2) is arranged on one side of the base (8) along a direction perpendicular to the length of the positioning groove (10), the rear section in the guide seat (2) is a threaded hole, the front section is a working hole (11) communicated with the threaded hole, a plunger (4) capable of adjusting the position through a screw rod (3) is assembled in the threaded hole, and the front end of the plunger (4) is inserted into the working hole (11);
a placing groove (9) communicated with the working hole (11) is formed in the side surface of the guide seat (2) and used for placing and position adjusting the pin (1); and a positioning rod (5) which can penetrate through a pin (1) hole on the valve core (6) and is inserted into the working hole (11) is arranged on the other side of the base (8).
2. The direct drive servovalve pin sub-press fitting device of claim 1, characterized in that the ram (12) is provided on one side of the plunger (4), and the longitudinal section of the plunger (4) is of a T-shaped configuration; limiting blocks are symmetrically arranged on two sides of the plunger (4), and limiting grooves matched with the limiting blocks are formed in the inner wall of the threaded hole along the axial direction.
3. The direct drive servovalve pin sub-press fitting apparatus of claim 2, wherein the threaded bore, the working bore (11), and the ram (12) are coaxially disposed.
4. The direct drive servovalve pin press fitting apparatus of claim 1, wherein the positioning groove (10) in the base (8) is a groove formed from the top surface of the base (8) into the base (8), and the positioning groove (10) is open at both ends; the cross section of the positioning groove (10) is of a V-shaped structure.
5. The direct drive servovalve pin press fitting apparatus of claim 1, characterized in that the positioning rod (5) is provided at its forward end with a thin section having an outer diameter smaller than the outer diameter of the positioning rod (5), the positioning rod (5) having an outer diameter larger than the inner bore of the pin (1) to allow the thin section to be inserted into the pin (1).
6. The direct drive servovalve pin press-fitting apparatus as set forth in claim 1, wherein a circular hole coaxial with the working hole (11) is formed in a side surface of the base (8) for inserting the positioning rod (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121410026.5U CN215433479U (en) | 2021-06-23 | 2021-06-23 | Press mounting device for directly driving servo valve pin |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121410026.5U CN215433479U (en) | 2021-06-23 | 2021-06-23 | Press mounting device for directly driving servo valve pin |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215433479U true CN215433479U (en) | 2022-01-07 |
Family
ID=79712901
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121410026.5U Active CN215433479U (en) | 2021-06-23 | 2021-06-23 | Press mounting device for directly driving servo valve pin |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215433479U (en) |
-
2021
- 2021-06-23 CN CN202121410026.5U patent/CN215433479U/en active Active
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