CN213684771U - External sensor for oil cylinder and oil cylinder - Google Patents
External sensor for oil cylinder and oil cylinder Download PDFInfo
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- CN213684771U CN213684771U CN202022333647.XU CN202022333647U CN213684771U CN 213684771 U CN213684771 U CN 213684771U CN 202022333647 U CN202022333647 U CN 202022333647U CN 213684771 U CN213684771 U CN 213684771U
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- oil cylinder
- cylinder
- piston rod
- external sensor
- sensor
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Abstract
The utility model discloses an external sensor for hydro-cylinder, including mount, cylinder and install protecgulum and back lid and the mount at both ends around the cylinder, cover after and install the sensor, be equipped with piston and piston rod in the cylinder, the measuring staff of sensor passes the back lid and stretches into inside piston and the piston rod, install the magnetic ring on the piston, the through-hole has been seted up on the mount, the front end of piston rod stretches out in the protecgulum and passes the through-hole of mount, piston rod swing joint is on the through-hole of mount, stop nut is installed to the front end of piston rod. An oil cylinder is provided with the external sensor for the oil cylinder. In this way, the utility model discloses external sensor and hydro-cylinder for the hydro-cylinder can allow to rotate between hydro-cylinder pole head and the sensor piston rod, and the requirement to structural component position precision that reduces has reduced the installation degree of difficulty.
Description
Technical Field
The utility model relates to a hydro-cylinder field especially relates to an external sensor and hydro-cylinder for hydro-cylinder.
Background
The magnetostrictive sensor for the oil cylinder is generally divided into two structures: a case protrusion structure and a built-in lever type structure. The protruding structure of the shell is arranged on the outer side of the oil cylinder, and the installation and the maintenance are convenient. The built-in rod type structure is generally arranged on a central shaft in the oil cylinder, and the rotary motion of a piston rod is not limited.
The protruding structure of the shell is arranged on the outer side of the oil cylinder, so that the maintenance is convenient, but the fixed points are arranged on the rod head of the oil cylinder and the cylinder barrel of the oil cylinder, are directly exposed in the installation environment, are easily influenced by external impact and dust, and particularly have poor applicability to the underwater environment; the built-in rod type structure is generally arranged on a central shaft in the oil cylinder, the rotary motion of the piston rod is not limited, the installation environment is sealed, and the built-in rod type structure can be protected. But the oil cylinder is arranged in the structural member of the oil cylinder, so that the disassembly and the assembly are troublesome, and the maintenance and the replacement are not facilitated.
Disclosure of Invention
The utility model discloses the main technical problem who solves provides an external sensor and hydro-cylinder for the hydro-cylinder, can allow to rotate between hydro-cylinder pole head and the sensor piston rod, and the requirement to structural component position precision of reduction has reduced the installation degree of difficulty.
In order to solve the technical problem, the utility model discloses a technical scheme be: the utility model provides an external sensor for hydro-cylinder, includes mount, cylinder and installs protecgulum and the back lid at both ends around the cylinder, cover behind and install the sensor, be equipped with piston and piston rod in the cylinder, the measuring staff of sensor passes the back lid and stretches into inside piston and the piston rod, install the magnetic ring on the piston, the through-hole has been seted up on the mount, the front end of piston rod stretches out in the protecgulum and passes the through-hole of mount, piston rod swing joint is on the through-hole of mount, stop nut is installed to the front end of piston rod.
In a preferred embodiment of the present invention, the front end of the piston rod is threadedly mounted with a rod head, the front end of the rod head passes through the through hole of the fixing frame, and the threaded connection is provided with a limit nut.
In a preferred embodiment of the present invention, the fixing frame is vertically connected to the front end of the piston rod, and the lower end thereof is mounted on the cylinder head.
In a preferred embodiment of the present invention, the through hole is a waist-shaped through hole.
In a preferred embodiment of the present invention, the cylinder barrel has a support vertically disposed at the lower portion of the left and right end edges, and the support is connected to the cylinder.
In a preferred embodiment of the present invention, a pressure relief oil cup is installed above the front cover, and a straight-through injection oil cup is installed below the front cover.
In a preferred embodiment of the present invention, the piston rod has a mounting groove on the left side, and the magnetic ring is disposed in the groove in a fitting manner.
In a preferred embodiment of the present invention, the rear cover is provided with a protective cover covering the outside of the sensor.
For solving the technical problem, the utility model discloses a another technical scheme is: the utility model provides an oil cylinder, include the hydro-cylinder and stretch out in the hydro-cylinder pole head of hydro-cylinder, still include foretell external sensor for the hydro-cylinder, the hydro-cylinder pole head is connected with the mount, be equipped with the mounting bracket on the hydro-cylinder, the mounting bracket is connected with the leg joint of cylinder, the hydro-cylinder pole head stretches out and rotates and makes mount and pole head deflect relatively.
The utility model has the advantages that: the utility model discloses the oil cylinder can allow to rotate between hydro-cylinder pole head and the sensor piston rod with external sensor and hydro-cylinder, and the requirement to structural component position precision that reduces has reduced the installation degree of difficulty.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained without inventive work, wherein:
fig. 1 is a schematic structural diagram of a preferred embodiment of the external sensor for the oil cylinder of the present invention;
FIG. 2 is a top view of FIG. 1;
FIG. 3 is a right side view of FIG. 1;
FIG. 4 is a schematic view of a portion of the structure of FIG. 1;
FIG. 5 is a schematic view of the structure of the cylinder;
the parts in the drawings are numbered as follows: 1. the oil cylinder comprises a cylinder barrel 11, a piston 12, a piston rod 13, a magnetic ring 14, a limiting nut 15, a rod head 16, a support 17, a mounting groove 2, a front cover 21, a pressure relief oil cup 22, a straight-through injection oil cup 3, a rear cover 31, a sensor 32, a protective cover 4, a fixing frame 41, a through hole 5, an oil cylinder barrel 51, a mounting frame 6 and an oil cylinder rod head.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely below, and it should be apparent that the described embodiments are only some embodiments of the present invention, but not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
Referring to fig. 1 to 4, an external sensor for an oil cylinder includes a fixing frame 4, a cylinder 1, a front cover 2 and a rear cover 3 installed at front and rear ends of the cylinder 1, a sensor 31 installed on the rear cover 3, a piston 11 and a piston rod 12 installed in the cylinder 1, a measuring rod of the sensor 31 passing through the rear cover 3 and extending into the piston 11 and the piston rod 12, a magnetic ring 13 installed on the piston 11, a through hole 41 opened on the fixing frame 4, a front end of the piston rod 12 extending out of the front cover 2 and passing through the through hole 41 of the fixing frame 4, the piston rod 12 movably connected to the through hole 41 of the fixing frame 4, and a limit nut 14 installed at a front end of the piston rod 12.
In addition, the front end of the piston rod 12 is threadedly mounted with a rod head 15, the front end of the rod head 15 passes through the through hole 41 of the fixed frame 4, and is threadedly connected with a limit nut 14. The through-hole 41 is a kidney-shaped through-hole.
In addition, the fixed frame 4 is vertically connected to the front end of the piston rod 12, and the lower end thereof is mounted on the cylinder head.
In addition, supports 16 are arranged on the left end edge and the right end edge of the cylinder barrel 1 in the vertical direction of the lower portion, and the supports 16 are connected to the oil cylinder.
In addition, a pressure relief oil cup 21 is mounted on the upper side of the front cover 2, and a straight-through injection oil cup 22 is mounted on the lower side.
In addition, the left side of the piston rod 12 is provided with a mounting groove 17, and the magnetic ring 13 is arranged in the groove 17 in a matching mode.
In addition, a protective cover 32 is mounted on the rear cover 3 and covers the sensor 31.
Referring to fig. 5, the oil cylinder comprises an oil cylinder barrel 5, an oil cylinder rod head 6 extending out of the oil cylinder barrel, and the external sensor for the oil cylinder, wherein the oil cylinder rod head 6 is connected with a fixed frame 4, an installation frame 51 is arranged on the oil cylinder barrel 5, the installation frame 51 is connected with a support 16 of the cylinder barrel 1, and the oil cylinder rod head 6 extends out and rotates to enable the fixed frame 4 and the rod head 15 to deflect relatively.
When the oil cylinder moves in a telescopic way, the oil cylinder rod head 6 drives the upper piston rod 12 to move through the fixed frame 4, and the piston 11 and the magnetic ring 17 connected with the upper piston rod move simultaneously, so that a signal is generated. When the oil cylinder rod head 6 rotates, the piston rod 12 keeps extending out horizontally, the fixing frame 4 deflects along with the oil cylinder rod head 6, and the waist-shaped hole of the fixing frame 4 cannot interfere with the extending of the piston rod 12 at the upper part.
Be different from prior art, the utility model discloses external sensor and hydro-cylinder for the hydro-cylinder can allow to rotate between hydro-cylinder pole head and the sensor piston rod, and the requirement to structural component position precision that reduces has reduced the installation degree of difficulty.
The above only is the embodiment of the present invention, not limiting the patent scope of the present invention, all of which utilize the equivalent structure or equivalent flow transformation made by the content of the specification of the present invention, or directly or indirectly applied to other related technical fields, all included in the same way in the patent protection scope of the present invention.
Claims (9)
1. The utility model provides an external sensor for hydro-cylinder, its characterized in that includes mount, cylinder and installs protecgulum and the back lid at both ends around the cylinder, cover behind and install the sensor, be equipped with piston and piston rod in the cylinder, the measuring staff of sensor passes the back lid and stretches into inside piston and the piston rod, install the magnetic ring on the piston, the through-hole has been seted up on the mount, the front end of piston rod stretches out in the protecgulum and passes the through-hole of mount, piston rod swing joint is on the through-hole of mount, stop nut is installed to the front end of piston rod.
2. The external sensor for the oil cylinder as defined in claim 1, wherein a rod head is installed at the front end of the piston rod in a threaded manner, the front end of the rod head passes through the through hole of the fixing frame, and a limit nut is connected to the front end of the rod head in a threaded manner.
3. The external sensor for the oil cylinder as defined in claim 2, wherein the fixing frame is vertically connected to the front end of the piston rod, and the lower end thereof is mounted on the rod head of the oil cylinder.
4. The external sensor for the oil cylinder as defined in claim 3, wherein the through hole is a kidney-shaped through hole.
5. The external sensor for the oil cylinder as defined in any one of claims 1 to 4, wherein the left and right ends of the cylinder barrel are provided with brackets in the vertical direction of the lower part thereof, and the brackets are connected to the oil cylinder.
6. The external sensor for the oil cylinder as defined in claim 5, wherein a pressure relief oil cup is installed above the front cover, and a straight-through injection oil cup is installed below the front cover.
7. The external sensor for the oil cylinder as defined in claim 6, wherein the piston rod has a mounting groove on the left side thereof, and the magnetic ring is disposed in the groove in a fitting manner.
8. The external sensor for the oil cylinder as defined in claim 7, wherein the rear cover is provided with a protective cover sleeved outside the sensor.
9. An oil cylinder comprises an oil cylinder barrel and an oil cylinder rod head extending out of the oil cylinder barrel, and is characterized by further comprising the external sensor for the oil cylinder as claimed in any one of claims 1 to 8, wherein the oil cylinder rod head is connected with a fixing frame, a mounting frame is arranged on the oil cylinder barrel and connected with a support of the cylinder barrel, and the oil cylinder rod head extends out and rotates to enable the fixing frame and the rod head to deflect relatively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022333647.XU CN213684771U (en) | 2020-10-20 | 2020-10-20 | External sensor for oil cylinder and oil cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022333647.XU CN213684771U (en) | 2020-10-20 | 2020-10-20 | External sensor for oil cylinder and oil cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213684771U true CN213684771U (en) | 2021-07-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022333647.XU Active CN213684771U (en) | 2020-10-20 | 2020-10-20 | External sensor for oil cylinder and oil cylinder |
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| Country | Link |
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| CN (1) | CN213684771U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113864287A (en) * | 2021-11-02 | 2021-12-31 | 北京金自天成液压技术有限责任公司 | Sensor device for hydraulic cylinder |
-
2020
- 2020-10-20 CN CN202022333647.XU patent/CN213684771U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113864287A (en) * | 2021-11-02 | 2021-12-31 | 北京金自天成液压技术有限责任公司 | Sensor device for hydraulic cylinder |
| CN113864287B (en) * | 2021-11-02 | 2023-10-13 | 北京金自天成液压技术有限责任公司 | Sensor device for hydraulic cylinder |
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