CN215146578U - HD1 valve correction tool - Google Patents
HD1 valve correction tool Download PDFInfo
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- CN215146578U CN215146578U CN202121138266.4U CN202121138266U CN215146578U CN 215146578 U CN215146578 U CN 215146578U CN 202121138266 U CN202121138266 U CN 202121138266U CN 215146578 U CN215146578 U CN 215146578U
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- valve
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- sleeve
- correcting
- guide sleeve
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Abstract
The utility model discloses a frock is rectified to HD1 valve, it includes: a corrector rod having a first end face and a second end face; the correcting rod is movably arranged in a valve sleeve of the HD1 valve, when the correcting tool finishes correcting, the first end face abuts against the end face of a valve core of the HD1 valve, and the second end face is flush with the end face of the valve sleeve of the HD1 valve. The utility model discloses a HD1 valve correction frock has the correction stick that can follow the valve barrel and remove, and the user uses when correcting the frock and proofreading, in putting into the valve barrel with the correction stick, the position of adjustment fork cover, when the first terminal surface of correcting the stick and case laminating, the outer terminal surface parallel and level of second terminal surface and valve barrel can accomplish the correction of case and valve barrel. Through the assistance of correction frock, can realize the quick correction to HD1 valve, improve work efficiency.
Description
Technical Field
The utility model relates to a plunger pump valve field especially relates to a frock is rectified to HD1 valve.
Background
The plunger pump is an important device of a hydraulic system, and oil absorption and pressure oil are realized by changing the volume of a sealed working cavity by means of reciprocating motion of a plunger in a cylinder body.
The HD1 valve is a pilot valve installed in the oil circuit for controlling the plunger pump, and the HD1 valve allows for stepless adjustment of the pump flow (displacement) in proportion to the applied pilot pressure. As shown in fig. 1, the HD1 valve has a valve body, a valve sleeve and a valve core disposed in the valve body, and in order to ensure that the adjustment amount of the HD1 valve is accurate, the relative positions of the valve sleeve and the valve core need to be corrected.
The existing HD1 valve is relatively complicated in correction mode, a user needs to adjust the left and right positions of the valve core by adjusting a shifting fork sleeve of the HD1 valve, measure the distance D1 from the end part of the valve core to the end surface of the valve sleeve after adjustment, and if the distance exceeds an error range, the adjustment and the measurement need to be carried out again, and the steps are repeated until the relative position of the valve core and the valve sleeve is within a preset error range. The adjusting process in the prior art is complicated, the accuracy is not high, and the adjustment is needed through repeated observation.
SUMMERY OF THE UTILITY MODEL
Need measure repeatedly, the technical problem of debugging when rectifying HD1 valve in order to solve, the utility model aims at providing a HD1 valve rectifies frock.
In order to realize above-mentioned purpose, the utility model provides a frock is rectified to HD1 valve includes:
a corrector rod having a first end face and a second end face;
the correcting rod is movably arranged in a valve sleeve of the HD1 valve, when the correcting tool finishes correcting, the first end face abuts against the end face of a valve core of the HD1 valve, and the second end face is flush with the end face of the valve sleeve of the HD1 valve.
The utility model discloses a HD1 valve correction frock has the correction stick that can follow the valve barrel and remove, and the user uses when correcting the frock and proofreading, in putting into the valve barrel with the correction stick, the position of adjustment fork cover, when the first terminal surface of correcting the stick and case laminating, the outer terminal surface parallel and level of second terminal surface and valve barrel can accomplish the correction of case and valve barrel. Through the assistance of correction frock, can realize the quick correction to HD1 valve, improve work efficiency.
Further, the HD1 valve correcting tool further comprises a guide sleeve, the guide sleeve is provided with a guide hole which penetrates through the guide sleeve, and the correcting rod is in clearance fit with the guide hole;
the guide sleeve is detachably connected with the valve sleeve.
Furthermore, the outer peripheral face of the guide sleeve is provided with external threads, the external threads on the guide sleeve are used for being matched with the internal threads on the inner side of the valve sleeve, and after the guide sleeve and the valve sleeve are assembled, the end face of the guide sleeve is flush with the end face of the valve sleeve.
Further, the guide sleeve is provided with an outer end surface and an inner end surface, when the guide sleeve and the valve sleeve are assembled, the outer end surface of the guide sleeve faces the outer side of the HD1 valve, and the inner end surface of the guide sleeve faces the inner side of the HD1 valve;
the outer end face is provided with an inner hexagonal groove.
Further, an annular flange is arranged on the inner end face of the guide sleeve and surrounds the guide hole.
Preferably, the distance between the opposite sides of the inner hexagonal groove is l, the diameter of the guide hole is d, and l is larger than 1.3 d.
Optionally, the second end face of the correction rod has a projection thereon.
Optionally, the alignment rod is a clearance fit with the valve housing.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the invention without undue limitation to the invention. In the drawings:
FIG. 1 is a cross-sectional view of a HD1 valve;
fig. 2 is an assembled sectional view of the HD1 valve correcting tool and the HD1 valve according to embodiment 1 of the present invention;
fig. 3 is a sectional view of the HD1 valve calibration fixture of embodiment 1 of the present invention;
fig. 4 is a sectional view of a guide bush according to embodiment 1 of the present invention;
fig. 5 is an assembled sectional view of the HD1 valve correcting tool and the HD1 valve according to embodiment 2 of the present invention;
fig. 6 is a sectional view of the HD1 valve calibration fixture of embodiment 3 of the present invention.
Wherein: 1. the valve comprises a valve body, 2, a valve sleeve, 3, a valve core, 4, a shifting fork sleeve, 5, a correction tool, 6, a fastening screw, 7, an adjusting rod, 8, a side cover, 51, a correction rod, 52, a guide sleeve, 511, a first end face, 512, a second end face, 513, a convex portion, 521, a guide hole, 522, an outer end face, 523, an inner end face, 524, an inner hexagonal groove, 525 and an annular flange.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the present invention will be described in detail with reference to the accompanying drawings and specific embodiments.
Example 1
As shown in fig. 2 and 3, an HD1 valve calibration fixture 5 includes: a corrector rod 51 having a first end surface 511 and a second end surface 512; the correcting rod 51 is movably arranged in the valve sleeve 2 of the HD1 valve, when the correcting tool 5 completes correction, that is, when the distance D1 from the end surface of the valve core 3 to the end surface of the valve sleeve 2 conforms to the length of the HD1 valve in normal operation, the first end surface 511 abuts against the end surface of the valve core 3 of the HD1 valve, and the second end surface 512 is flush with the end surface of the valve sleeve 2 of the HD1 valve, that is, the length of the correcting rod 51 is equal to the distance D1 from the end surface of the valve core 3 to the end surface of the valve sleeve 2 in normal operation of the HD1 valve.
The utility model discloses a HD1 valve correction frock 5 has the correction stick 51 that can follow the valve barrel and remove, and the user uses when correcting the frock and proofreading, in putting into valve barrel 2 with correction stick 51, the position of fork cover 4 is dialled in the adjustment, when the first terminal surface 511 of correcting stick 51 and case 3 laminate, case 3 and valve barrel's correction can be accomplished to second terminal surface 512 and the outer terminal surface parallel and level of valve barrel. Through the assistance of correction frock 5, can realize the quick correction to HD1 valve, improve work efficiency.
In order to enable the correcting rod 51 to move smoothly in the valve sleeve 2, the HD1 valve correcting tool 5 further comprises a guide sleeve 52, as shown in fig. 4, the guide sleeve 52 has a guide hole 521 penetrating through the guide sleeve, and the correcting rod 51 is in clearance fit with the guide hole 521; the guide sleeve 52 is detachably connected to the valve housing 2.
Specifically, the outer peripheral surface of the guide sleeve 52 is provided with an external thread, the external thread on the guide sleeve 52 is used for matching with an internal thread on the inner side of the valve housing 2, and after the guide sleeve 52 is assembled with the valve housing 2, the end surface of the guide sleeve 52 is flush with the end surface of the valve housing 2.
The guide sleeve 52 is fixed relative to the valve housing 2 through a threaded fit, so that the correcting rod 51 does not drive the guide sleeve 52 to move together when moving, so that the correcting rod 51 can move smoothly in the valve housing 2, and the correcting result is not inaccurate due to the inclination of the correcting rod 51.
Wherein the guide sleeve 52 has an outer end surface 522 and an inner end surface 523, when the guide sleeve 52 is assembled with the valve sleeve 2, the outer end surface 522 of the guide sleeve faces the outer side of the HD1 valve, and the inner end surface 523 of the guide sleeve faces the inner side of the HD1 valve; the outer end surface 522 has an internal hexagonal groove 524 therein. The user can use a hexagonal wrench to install or remove the guide sleeve 52, which is convenient for the user to use.
When the correcting rod 51 is installed in the guide hole 521, a gap is formed between the correcting rod 51 and the inner wall of the hexagonal groove 524, and the gap can provide a grasping position for a user to take the correcting rod 51 out of the guide sleeve 52.
In order to make a certain gap between the correcting rod 51 and the inner wall of the inner hexagonal groove 524 large enough for a user to grasp the correcting rod 51, the distance l between the opposite sides of the inner hexagonal groove 524 is preferably greater than 1.3 times the diameter d of the guiding hole 521, i.e., l > 1.3 d. It should be noted that, although the larger the size of the internal hexagonal groove 524 is, the more convenient for the user to grasp the calibration rod 51, the size of the internal hexagonal groove 524 must be smaller than the diameter of the outer end surface 522 of the guide sleeve, and those skilled in the art can set the internal hexagonal groove 524 with a suitable specification according to the actual size of the guide sleeve 53 and the valve sleeve 3.
Since the inner hexagonal groove 524 is located at a position where the correcting rod 51 does not contact the guide sleeve 52, which weakens the guiding effect of the guide sleeve 52 on the correcting rod 51, an annular flange 525 is provided on the inner end surface of the guide sleeve 52 around the guide hole 521 to increase the contact area between the guide sleeve 52 and the correcting rod 51, and ensure that the correcting rod 51 does not radially deflect during the movement.
Use the utility model discloses a HD1 valve correction frock carries out the concrete step of rectifying as follows:
1. loosening the fastening screw 6, loosening and taking down the adjusting rods 7 at the two ends of the valve body, and detaching the side cover 8;
2. adjusting the left and right positions of the valve sleeve 2 to ensure that the distance D2 between the end surface of the valve sleeve 2 and the end surface of the valve body 1 is within a standard error range;
3. the guide sleeve 52 is installed in the valve housing 2, and the aligning rod 51 is installed in the guide hole 521 of the guide sleeve 52;
4. adjusting the shifting fork sleeve 4 to adjust the position of the valve core 3, and simultaneously pushing the correcting rod 51, so that the correcting rod 51 is abutted against the valve core 3 and the second end surface 512 of the correcting rod is flush with the outer end surface of the valve sleeve;
5. taking out the correcting rod 51 and the guide sleeve 52;
6. the side cover 8 and the adjusting rod 7 are installed and the fastening screw 6 is screwed.
Example 2
The embodiment 2 is basically the same as the embodiment 1, and the main difference is that, as shown in fig. 5, the calibration tool does not have a guide sleeve 52, and the calibration rod 51 is in direct clearance fit with the valve housing 2, and the calibration rod 51 is guided by the length of the valve housing 2 itself.
Example 3
In a word, the utility model discloses a HD1 valve can help the user judge directly perceivedly whether the relative position of case and valve barrel accords with the standard to need not the position of adjusting the case on one side, measure the distance of case terminal surface and valve barrel terminal surface on one side, not only improved work efficiency, still improved the accuracy of correction.
In the description of the present invention, it should be understood that the terms "vertical", "horizontal", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the scope of the present invention.
If the terms "first," "second," etc. are used herein to define parts, those skilled in the art will recognize that: the use of "first" and "second" is merely for convenience in describing the invention and to simplify the description, and the words are not intended to have a special meaning unless otherwise stated.
The present invention is not limited to the embodiments, and if various modifications or variations of the present invention do not depart from the spirit and scope of the present invention, they are intended to be covered if they fall within the scope of the claims and the equivalent technical scope of the present invention.
Claims (8)
1. The utility model provides a frock is rectified to HD1 valve which characterized in that includes:
a corrector rod having a first end face and a second end face;
the correcting rod is movably arranged in a valve sleeve of the HD1 valve, when the correcting tool finishes correcting, the first end face abuts against the end face of a valve core of the HD1 valve, and the second end face is flush with the end face of the valve sleeve of the HD1 valve.
2. The HD1 valve correcting tool according to claim 1, wherein:
the HD1 valve correcting tool further comprises a guide sleeve, the guide sleeve is provided with a guide hole which penetrates through the guide sleeve, and the correcting rod is in clearance fit with the guide hole;
the guide sleeve is detachably connected with the valve sleeve.
3. The HD1 valve correcting tool according to claim 2, wherein:
the outer peripheral face of the guide sleeve is provided with external threads, the external threads on the guide sleeve are used for being matched with the internal threads on the inner side of the valve sleeve, and when the guide sleeve and the valve sleeve are assembled, the end face of the guide sleeve is flush with the end face of the valve sleeve.
4. The HD1 valve correcting tool according to claim 2, wherein:
the guide sleeve is provided with an outer end surface and an inner end surface, when the guide sleeve and the valve sleeve are assembled, the outer end surface of the guide sleeve faces the outer side of the HD1 valve, and the inner end surface of the guide sleeve faces the inner side of the HD1 valve;
the outer end face is provided with an inner hexagonal groove.
5. The HD1 valve correcting tool according to claim 4, wherein:
and an annular flange is arranged on the inner end surface of the guide sleeve and surrounds the guide hole.
6. The HD1 valve correcting tool according to claim 4, wherein:
the distance between the opposite sides of the inner hexagonal groove is l, the diameter of the guide hole is d, and l is larger than 1.3 d.
7. The HD1 valve correcting tool according to claim 1, wherein:
the second end face of the correcting rod is provided with a convex part.
8. The HD1 valve correcting tool according to claim 1, wherein:
the correcting rod is in clearance fit with the valve sleeve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121138266.4U CN215146578U (en) | 2021-05-25 | 2021-05-25 | HD1 valve correction tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121138266.4U CN215146578U (en) | 2021-05-25 | 2021-05-25 | HD1 valve correction tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215146578U true CN215146578U (en) | 2021-12-14 |
Family
ID=79376055
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121138266.4U Active CN215146578U (en) | 2021-05-25 | 2021-05-25 | HD1 valve correction tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215146578U (en) |
-
2021
- 2021-05-25 CN CN202121138266.4U patent/CN215146578U/en active Active
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