CN210371455U - Protection structure of built-in stroke sensor of pushing oil cylinder - Google Patents
Protection structure of built-in stroke sensor of pushing oil cylinder Download PDFInfo
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- CN210371455U CN210371455U CN201921104466.0U CN201921104466U CN210371455U CN 210371455 U CN210371455 U CN 210371455U CN 201921104466 U CN201921104466 U CN 201921104466U CN 210371455 U CN210371455 U CN 210371455U
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- 230000006698 induction Effects 0.000 claims abstract description 51
- 238000009434 installation Methods 0.000 claims abstract description 23
- 230000001681 protective effect Effects 0.000 claims abstract description 8
- 230000004044 response Effects 0.000 abstract description 6
- 238000001514 detection method Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 3
- 125000006850 spacer group Chemical group 0.000 description 3
- 238000005299 abrasion Methods 0.000 description 2
- 230000003139 buffering effect Effects 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000003116 impacting effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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Abstract
The utility model relates to a protective structure of a built-in stroke sensor of a pushing oil cylinder, which comprises a cylinder bottom and a cylinder barrel, wherein the cylinder bottom is fixedly connected with the cylinder barrel, the protective structure also comprises a mounting sleeve and a piston rod, the mounting sleeve is arranged in the cylinder bottom, one end of the mounting sleeve is provided with the stroke sensor, the other end of the mounting sleeve is provided with a locking sleeve, and the stroke sensor comprises a rod body and an induction magnetic ring; the piston rod is arranged in the cylinder barrel, one end of the piston rod is sleeved with a piston, a deep mounting hole is formed in the piston rod, one side of the rod body is arranged in the deep mounting hole, a stepped hole is formed in one end of the piston rod, a support ring is sequentially arranged in the stepped hole, the induction magnetic ring and the threaded sleeve are arranged in the stepped hole, the inner wall of the support ring is tightly attached to the rod body, the inner diameter of the support ring is smaller than that of the induction magnetic ring, and wear-resistant rings are arranged between. The utility model discloses it is convenient that the installation is dismantled, can guarantee that the response magnetic ring is difficult for receiving wearing and tearing, improves stroke sensor's reliability and practicality.
Description
Technical Field
The utility model relates to a pneumatic cylinder technical field especially relates to a built-in stroke sensor's of lapse hydro-cylinder protective structure.
Background
Along with the development of hydraulic pressure technique, in order to know the behavior of pneumatic cylinder, adopt the stroke sensor to detect usually, need place the sensor rod body in the piston rod, the response magnetic ring is installed on the piston rod, and then the change of response magnetic ring induction corresponding displacement volume through the flexible length of piston rod to this stroke of confirming the pneumatic cylinder.
In actual work, because the sensor rod body is longer and the tail end of the rod body is easy to droop, the induction magnetic ring can generate interference contact and friction with the sensor rod body when the piston rod stretches, so that the abrasion of the induction magnetic ring and the sensor rod body is accelerated, the sensor signal is influenced, and the service life of the sensor rod body is greatly shortened; when the induction magnetic ring and the piston rod are installed, the induction magnetic ring and the piston rod are generally installed through a plurality of screws, for example, in a built-in sensor oil cylinder disclosed in patent publication No. CN208169247U, the induction magnetic ring is fixed on the piston rod of the oil cylinder through screws in the scheme, the installation and the disassembly are inconvenient through the plurality of screws, and the induction magnetic ring and the piston rod are directly fastened through the screws; some oil cylinders do not have buffering performance, so that the speed is high when the piston rod retracts, the cylinder bottom is easy to wear for a long time, and the service life is shortened.
Disclosure of Invention
The utility model discloses a solve the problem that the easy wearing and tearing of response magnetic ring caused detection error, provide a built-in stroke sensor's of lapse hydro-cylinder protective structure, avoided the body of rod longer to cause the influence to the response magnetic ring, guaranteed the accuracy of detection data.
In order to achieve the above object, the utility model adopts the following technical scheme:
a protective structure of a built-in stroke sensor of a push oil cylinder comprises a cylinder bottom and a cylinder barrel, wherein the cylinder bottom is fixedly connected with the cylinder barrel, the protective structure further comprises a mounting sleeve and a piston rod, the mounting sleeve is arranged in the cylinder bottom, one end of the mounting sleeve is provided with the stroke sensor, the other end of the mounting sleeve is provided with a locking sleeve used for locking the stroke sensor, and the stroke sensor comprises a rod body and an induction magnetic ring which moves synchronously with the piston rod;
the induction type oil cylinder is characterized in that a piston rod is arranged in a cylinder barrel, one end of the piston rod is sleeved with a piston, the side wall of the piston is tightly attached to the inner wall of the cylinder barrel, a mounting deep hole is formed in the piston rod, one side of a rod body is arranged in the mounting deep hole, one end of the piston rod is provided with three stepped holes with different diameters, a support ring, an induction magnetic ring and a threaded sleeve are sequentially arranged in the stepped holes, the support ring, the induction magnetic ring and the threaded sleeve are sleeved on the rod body, the inner wall of the support ring is tightly attached to the rod body, the inner diameter of the support ring;
the mounting sleeve is further provided with a buffer gasket, one end of the piston rod is provided with an annular groove, and the buffer gasket is arranged in the annular groove.
Further, the cylinder bottom and the cylinder barrel are welded, and the mounting sleeve and the cylinder bottom are welded; one end of the rod body is arranged in the mounting sleeve, the other end of the rod body is arranged in the mounting deep hole, and the locking sleeve is in threaded connection with the mounting sleeve.
Further, the piston is connected with the piston rod key, and the piston is connected with the cylinder barrel in a sliding mode.
Furthermore, the minimum diameter of the stepped hole is larger than the diameter of the installation deep hole, the stepped hole and the installation deep hole are coaxially arranged, and the rod body is in clearance fit with the installation deep hole.
Furthermore, the inner diameters of the support ring, the induction magnetic ring and the threaded sleeve are sequentially increased, and the support ring, the induction magnetic ring and the threaded sleeve are mutually extruded.
Further, the thread bush is an external thread bush, the thread bush is in threaded connection with the stepped hole, and the inside of the thread bush is of a hexagonal groove structure.
Through the technical scheme, the beneficial effects of the utility model are that:
the utility model has the advantages that the support ring is tightly attached to the rod body, the inner diameter of the support ring is smaller than that of the induction magnetic ring, and the support ring plays a role in supporting and guiding, so that the induction magnetic ring can not contact with the rod body when the piston rod moves, the induction magnetic ring is prevented from being worn, and the normal detection signal of the stroke sensor is ensured; when the support ring, the induction magnetic ring and the piston rod are installed, the induction magnetic ring and the support ring are fixed by the threaded sleeve, and the installation and the disassembly are convenient due to the installation mode of the threaded sleeve; wear-resisting rings are arranged between the induction magnetic ring and the threaded sleeve and between the induction magnetic ring and the support ring, so that the induction magnetic ring is prevented from being worn due to the fact that the threaded sleeve directly contacts and extrudes the induction magnetic ring in the fastening process.
The utility model discloses the buffer spacer who sets up retracts when the piston rod contracts, the piston rod earlier with the buffer spacer contact after, again with the installation cover contact, buffer spacer can play the cushioning effect, avoids the piston rod to produce great impact to the installation cover. The utility model discloses a travel sensor is convenient with hydro-cylinder installation dismantlement, can guarantee that the response magnetic ring is difficult for receiving wearing and tearing, improves travel sensor's reliability and practicality, guarantees the accuracy of detected signal.
Drawings
Fig. 1 is a schematic view of the overall structure of the protection structure of the built-in stroke sensor of the pushing cylinder of the present invention.
Fig. 2 is an enlarged schematic view of a position a in fig. 1 of a protection structure of a stroke sensor built in a push cylinder of the present invention.
Fig. 3 is a schematic diagram of the piston rod extending state of the protection structure of the built-in stroke sensor of the pushing cylinder of the present invention.
Fig. 4 is an enlarged schematic view of a position B in fig. 3 of a protection structure of the built-in stroke sensor of the pushing cylinder of the present invention.
The reference numbers in the drawings are as follows: the cylinder comprises a cylinder bottom 1, a cylinder barrel 2, an installation sleeve 3, a piston rod 4, a rod body 501, an induction magnetic ring 502, a locking sleeve 6, a piston 7, an installation deep hole 8, a stepped hole 9, a support ring 10, a threaded sleeve 11, a wear-resistant ring 12, a buffer gasket 13 and an annular groove 14.
Detailed Description
The following detailed description of the embodiments of the present invention is made with reference to the accompanying drawings:
as shown in fig. 1 to 4, the protection structure of the built-in stroke sensor of the pushing cylinder comprises a cylinder bottom 1 and a cylinder barrel 2, wherein the cylinder bottom 1 is fixedly connected with the cylinder barrel 2, the protection structure further comprises an installation sleeve 3 and a piston rod 4, the installation sleeve 3 is arranged in the cylinder bottom 1, one end of the installation sleeve 3 is provided with the stroke sensor, the other end of the installation sleeve 3 is provided with a locking sleeve 6 for locking the stroke sensor, and the stroke sensor comprises a rod body 501 and an induction magnetic ring 502 which moves synchronously with the piston rod 4;
the piston rod 4 is arranged in the cylinder barrel 2, one end of the piston rod 4 is sleeved with a piston 7, the side wall of the piston 7 is tightly attached to the inner wall of the cylinder barrel 2, a deep mounting hole 8 is arranged in the piston rod 4, one side of the rod body 501 is arranged in the installation deep hole 8, the rod body 501 is in clearance fit with the installation deep hole 8, one end of the piston rod 4 is provided with three stepped holes 9 with different diameters, the minimum diameter of the stepped hole 9 is larger than that of the deep mounting hole 8, the stepped hole 9 and the deep mounting hole 8 are coaxially arranged, the stepped hole 9 is internally provided with a support ring 10, the induction magnetic ring 502 and a threaded sleeve 11 in sequence, the support ring 10, the induction magnetic ring 502 and the threaded sleeve 11 are sleeved on the rod body 501, the inner wall of the support ring 10 is tightly attached to the rod body 501, the inner diameter of the support ring 10 is smaller than that of the induction magnetic ring 502, wear-resisting rings 12 are arranged between the support ring 10 and the induction magnetic ring 502 and between the induction magnetic ring 502 and the threaded sleeve 11;
the mounting sleeve 3 is further provided with a buffer gasket 13, one end of the piston rod 4 is provided with an annular groove 14, and the buffer gasket 13 is arranged in the annular groove 14.
Specifically, in the embodiment, the cylinder bottom 1 is welded with the cylinder barrel 2, and the mounting sleeve 3 is welded with the cylinder bottom 1; one end of the rod body 501 is arranged in the mounting sleeve 3, the other end of the rod body is arranged in the mounting deep hole 8, and the locking sleeve 6 is in threaded connection with the mounting sleeve 3; the piston 7 is in key connection with the piston rod 4, and the piston 7 is in sliding connection with the cylinder barrel 2.
Specifically, the inner diameters of the support ring 10, the induction magnetic ring 502 and the threaded sleeve 11 are sequentially increased, and the support ring 10, the induction magnetic ring 502 and the threaded sleeve 11 are mutually extruded; the thread bush 11 is an external thread bush, the thread bush 11 is in threaded connection with the stepped hole 9, and the thread bush 11 is internally provided with a hexagonal groove structure.
When the stroke sensor is installed, firstly, the rod body 501 and the installation sleeve 3 are installed, the rod body 501 and the installation sleeve 3 are fixed through the locking sleeve 6, then the support ring 10, the wear-resistant ring 12, the induction magnetic ring 502 and the wear-resistant ring 12 are sequentially placed in the stepped hole 9, the support ring 10, the wear-resistant ring 12, the induction magnetic ring 502 and the wear-resistant ring 12 are fixed in the stepped hole 9 by rotating the threaded sleeve 11 through the hexagonal wrench, the threaded sleeve 11, the induction magnetic ring 502 and the support ring 10 are mutually extruded, finally, after the piston rod 4 and the piston 7 are installed, the piston rod 4 is placed in the cylinder barrel 2, and the rod body 501 sequentially penetrates through the threaded sleeve 11, the induction magnetic ring 502 and the support ring 10 and.
When the pushing oil cylinder works, the piston rod 4 moves back and forth in the cylinder barrel 2, in the moving process, the rod body 501 is fixed on the mounting sleeve 3, the position of the rod body is kept fixed, the induction magnetic ring 502 moves along with the piston rod 4, and the induction magnetic ring 502 and the rod body 501 generate relative displacement to generate a feedback signal so as to detect the stroke of the piston rod 4.
In the moving process of the piston rod 4, the support ring 10 keeps contact with the rod body 501, and because the inner diameter of the support ring 10 is smaller than the inner diameter of the induction magnetic ring 502, the inner wall of the induction magnetic ring 502 is not in contact with the rod body 501 all the time, so that the detection accuracy of the induction magnetic ring 502 can be ensured.
When the piston rod 4 retracts, the mounting sleeve 3 is firstly contacted with the end face of the piston rod 4 through the buffer gasket 13, finally the buffer gasket 13 is arranged in the annular groove 14, the mounting sleeve 3 is contacted with the end face of the piston rod 4 to complete retraction, the buffer gasket 13 plays a role in buffering, and the piston rod 4 is prevented from impacting the mounting sleeve 3 to generate abrasion.
The above-mentioned embodiments are merely preferred embodiments of the present invention, and not intended to limit the scope of the present invention, so that equivalent changes or modifications made by the structure, features and principles of the present invention should be included in the claims of the present invention.
Claims (6)
1. A protective structure of a built-in stroke sensor of a push cylinder comprises a cylinder bottom (1) and a cylinder barrel (2), wherein the cylinder bottom (1) is fixedly connected with the cylinder barrel (2), and the protective structure is characterized by further comprising a mounting sleeve (3) and a piston rod (4), wherein the mounting sleeve (3) is arranged in the cylinder bottom (1), one end of the mounting sleeve (3) is provided with the stroke sensor, the other end of the mounting sleeve is provided with a locking sleeve (6) used for locking the stroke sensor, and the stroke sensor comprises a rod body (501) and an induction magnetic ring (502) which moves synchronously with the piston rod (4);
the piston rod (4) is arranged in the cylinder barrel (2), one end of the piston rod (4) is sleeved with a piston (7), the side wall of the piston (7) is tightly attached to the inner wall of the cylinder barrel (2), a deep mounting hole (8) is arranged in the piston rod (4), one side of the rod body (501) is arranged in the mounting deep hole (8), one end of the piston rod (4) is provided with three stepped holes (9) with different diameters, a support ring (10), the induction magnetic ring (502) and a threaded sleeve (11) are sequentially arranged in the stepped hole (9), the support ring (10), the induction magnetic ring (502) and the threaded sleeve (11) are sleeved on the rod body (501), the inner wall of the support ring (10) is tightly attached to the rod body (501), the inner diameter of the support ring (10) is smaller than that of the induction magnetic ring (502), wear-resistant rings (12) are arranged between the support ring (10) and the induction magnetic ring (502) and between the induction magnetic ring (502) and the threaded sleeve (11);
the mounting sleeve (3) is further provided with a buffer gasket (13), one end of the piston rod (4) is provided with an annular groove (14), and the buffer gasket (13) is arranged in the annular groove (14).
2. The protection structure of the built-in stroke sensor of the pushing oil cylinder is characterized in that the cylinder bottom (1) is welded with the cylinder barrel (2), and the mounting sleeve (3) is welded with the cylinder bottom (1); one end of the rod body (501) is arranged in the mounting sleeve (3), the other end of the rod body is arranged in the mounting deep hole (8), and the locking sleeve (6) is in threaded connection with the mounting sleeve (3).
3. The protection structure of the built-in stroke sensor of the pushing cylinder is characterized in that the piston (7) is connected with the piston rod (4) in a key mode, and the piston (7) is connected with the cylinder barrel (2) in a sliding mode.
4. The protection structure of the built-in stroke sensor of the push cylinder is characterized in that the minimum diameter of the stepped hole (9) is larger than that of the installation deep hole (8), the stepped hole (9) and the installation deep hole (8) are coaxially arranged, and the rod body (501) is in clearance fit with the installation deep hole (8).
5. The protection structure of the built-in stroke sensor of the push cylinder as claimed in claim 1, wherein the inner diameters of the support ring (10), the induction magnetic ring (502) and the threaded sleeve (11) are sequentially increased, and the support ring (10), the induction magnetic ring (502) and the threaded sleeve (11) are mutually extruded.
6. The protection structure of the built-in stroke sensor of the pushing cylinder, as claimed in claim 5, wherein the threaded sleeve (11) is an external threaded sleeve, the threaded sleeve (11) is in threaded connection with the stepped hole (9), and the interior of the threaded sleeve (11) is of a hexagonal groove structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921104466.0U CN210371455U (en) | 2019-07-15 | 2019-07-15 | Protection structure of built-in stroke sensor of pushing oil cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921104466.0U CN210371455U (en) | 2019-07-15 | 2019-07-15 | Protection structure of built-in stroke sensor of pushing oil cylinder |
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| Publication Number | Publication Date |
|---|---|
| CN210371455U true CN210371455U (en) | 2020-04-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921104466.0U Active CN210371455U (en) | 2019-07-15 | 2019-07-15 | Protection structure of built-in stroke sensor of pushing oil cylinder |
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| CN (1) | CN210371455U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117886250A (en) * | 2024-03-15 | 2024-04-16 | 三一重型装备有限公司 | Piston rod locking mechanism, jack and hydraulic support |
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2019
- 2019-07-15 CN CN201921104466.0U patent/CN210371455U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117886250A (en) * | 2024-03-15 | 2024-04-16 | 三一重型装备有限公司 | Piston rod locking mechanism, jack and hydraulic support |
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 475004 intersection of Weidu road and 1st Street, Longting District, Kaifeng City, Henan Province Patentee after: Henan Energy Group Heavy Equipment Co.,Ltd. Country or region after: China Address before: 475004 intersection of Weidu road and 1st Street, Longting District, Kaifeng City, Henan Province Patentee before: HENAN ENERGY CHEMICAL GROUP HEAVY EQUIPMENT Co.,Ltd. Country or region before: China |