CN217080952U - Two-stage oil cylinder with sensor - Google Patents
Two-stage oil cylinder with sensor Download PDFInfo
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- CN217080952U CN217080952U CN202122106504.XU CN202122106504U CN217080952U CN 217080952 U CN217080952 U CN 217080952U CN 202122106504 U CN202122106504 U CN 202122106504U CN 217080952 U CN217080952 U CN 217080952U
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Abstract
The utility model discloses a two-stage oil cylinder with a sensor, which comprises a cylinder barrel, wherein a first-stage piston and a first-stage piston rod are movably arranged in the cylinder barrel, a second-stage piston and a second-stage piston rod are movably arranged in the first-stage piston rod, and the outer side of the cylinder barrel is connected with the sensor oil cylinder; the inside of one-level piston and second grade piston rod is equipped with and sets up the through-hole that has along the axial, install hollow installation outer tube in the through-hole, the installation outer tube left end is connected in the one-level piston, the right-hand member stretches into in the second grade piston rod, the right-hand member of installation outer tube is connected with first magnetic ring, still be provided with hollow installation inner tube in the installation outer tube, the right-hand member of installation inner tube is connected at the right-hand member inboard of second grade piston rod, the installation outer tube is located to the left end of installation inner tube, the inside first sensor that is provided with of pole head of second grade piston rod, the measuring staff of first sensor stretches into in the installation inner tube. In this way, the utility model discloses two-stage hydro-cylinder with sensor increases the independent sensor of two-stage on the hydro-cylinder, has realized the accurate control of hydro-cylinder motion.
Description
Technical Field
The utility model relates to a multistage hydro-cylinder field especially relates to a two-stage hydro-cylinder with sensor.
Background
The mechanical locking oil cylinder has the characteristics of mechanical limiting at the tail end of the stroke or any position without system pressure supply, energy is saved, the hydraulic locking oil cylinder is reliable in performance and free of internal leakage compared with hydraulic locking, the mechanical locking oil cylinder is widely applied to aerospace and high-end equipment manufacturing industries, a displacement sensor needs to be added in order to enable the stroke control of the oil cylinder to be more accurate, and the long-stroke two-stage oil cylinder is difficult to achieve and has the functions of mechanical locking, adjustable rod head and displacement sensor addition.
The demand for a long-stroke two-stage locking cylinder in the current market is more and more, the oil cylinder needs to be locked at any position within a certain stroke range, and therefore the tail end of the largest stage of the oil cylinder needs to be locked, and the arbitrary position of the smallest stage of the oil cylinder needs to be locked. The locking is carried out at any position by adopting an interference fit type, oil is not introduced into the locking sleeve during locking, the piston rod is tightly held by the interference fit of the locking sleeve and the piston rod, high-pressure oil is introduced during unlocking, the locking sleeve expands to form a gap with the piston rod, so that the piston rod can freely stretch and retract, the gap between the locking sleeve and the piston rod is small, the deflection generated by the piston rod during the long stroke of the oil cylinder is easy to directly rub with the locking sleeve, the piston rod is excessively worn, the service life is influenced, the unlocking pressure is generally above 20MPa, and higher requirements are provided for a system of a user. The multi-stage cylinder is added with the sensor, which can be realized only by an external pull rope sensor or an inclination sensor, and the two sensors have low precision.
Disclosure of Invention
The utility model discloses the main technical problem who solves provides a two-stage hydro-cylinder with sensor, increases the independent sensor of two-stage on the hydro-cylinder, has realized the accurate control of hydro-cylinder motion.
In order to solve the technical problem, the utility model discloses a technical scheme be: the two-stage oil cylinder with the sensor comprises a cylinder barrel, wherein a first-stage piston and a first-stage piston rod are movably arranged in the cylinder barrel, a second-stage piston and a second-stage piston rod are movably arranged in the first-stage piston rod, a sensing oil cylinder is connected to the outer side of the cylinder barrel, a connecting plate is connected to the piston rod of the sensing oil cylinder, the lower end of the connecting plate is connected to a flange, and the flange is fixedly connected to the front end of the first-stage piston rod; the utility model discloses a hydraulic pressure sensor, including one-level piston and second grade piston rod, the inside of one-level piston and second grade piston rod is equipped with along the axial through-hole of seting up, install hollow installation outer tube in the through-hole, installation outer tube left end is connected in the one-level piston, and the right-hand member stretches into in the second grade piston rod, the right-hand member of installation outer tube is connected with first magnetic ring, still be provided with hollow installation inner tube in the installation outer tube, the right-hand member of installation inner tube is connected at the right-hand member inboard of second grade piston rod, the left end of installation inner tube is located in the installation outer tube, the inside first sensor that is provided with of pole head of second grade piston rod, the measuring staff of first sensor stretches into in the installation inner tube.
In a preferred embodiment of the present invention, the left end of the mounting outer tube is connected to the inside of the primary piston through a retainer ring.
In a preferred embodiment of the present invention, the right end of the installation inner tube is connected to the inside of the second-stage piston rod through a retaining ring, a sealing ring is disposed between the outside of the right end of the installation inner tube and the inner wall of the second-stage piston rod, and the left end of the installation inner tube is closed and connected to a supporting block.
In a preferred embodiment of the present invention, the measuring head of the first sensor is mounted in the mounting hole of the club head, and the wiring of the first sensor is led out from the mounting hole.
In a preferred embodiment of the present invention, the rod head is screwed to the right end of the secondary piston rod and is locked to the secondary piston rod by a nut.
In a preferred embodiment of the present invention, the right end of the first-stage piston rod is connected to a second-stage guide sleeve, the second-stage guide sleeve is movably sleeved on the second-stage piston rod, and the flange is connected to the right end surface of the second-stage guide sleeve through a screw.
The utility model discloses a preferred embodiment, the sensing hydro-cylinder is including connecting the sensing hydro-cylinder on the cylinder, be equipped with piston and piston rod in the sensing hydro-cylinder, the piston in-connection has the second magnetic ring, the second sensor is installed to the left end of sensing hydro-cylinder, the measuring staff of second sensor stretches into in the piston rod the blind hole, the right-hand member of piston rod is connected with the flange through the connecting plate.
In a preferred embodiment of the present invention, the right end of the flange is connected to an external clamp, and the external clamp is sleeved on the outside of the second-stage piston rod.
In the utility model discloses a preferred embodiment, the right side of cylinder is equipped with the one-level uide bushing with one-level piston rod complex, the locking steel ball is installed in the left side of one-level uide bushing, the locking groove with locking steel ball complex is seted up in the outside of one-level piston.
The utility model discloses a preferred embodiment, the one-level rodless chamber oilhole has been seted up to the cylinder left end, and the one-level has been seted up to the right-hand member has the pole chamber oilhole, the second grade rodless chamber oilhole has been seted up on the one-level piston, the one-level has pole chamber oilhole and second grade rodless chamber oilhole intercommunication, and the one-level rodless chamber oilhole lets in fluid and promotes the one-level piston and move to the right, and fluid promotes the second grade piston through second grade rodless chamber oilhole and moves to the right, it has the pole chamber oilhole to have seted up the second grade in the second grade piston rod.
The utility model has the advantages that: the utility model discloses two-stage hydro-cylinder with sensor increases the independent sensor of two-stage on the hydro-cylinder, has realized the accurate control of hydro-cylinder motion, and through setting up two-stage locking structure, unblock pressure is low, long service life, and the adjustable required precision that can lock of pole head position has reduced external structure simultaneously.
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 cross-sectional view of a preferred embodiment of the two-stage cylinder with sensor of the present invention;
FIG. 2 is a top view of FIG. 1;
FIG. 3 is a schematic view of a portion of the structure of FIG. 2;
FIG. 4 is a schematic view of a portion of the structure of FIG. 1 at A;
FIG. 5 is a schematic view of a portion of the structure at B of FIG. 1;
FIG. 6 is a schematic view of a partial structure at C of FIG. 1;
FIG. 7 is a schematic view of a portion of the structure of FIG. 1 at D;
FIG. 8 is a schematic view of a partial structure of a sensing cylinder;
the parts in the drawings are numbered as follows: 101. the device comprises a cylinder barrel 102, a primary piston 103, a primary piston rod 104, a secondary piston 105, a secondary piston rod 106, a flange 107, a through hole 108, an outer mounting pipe 109, a first magnetic ring 110, an inner mounting pipe 111, a rod head 112, a first sensor 113, a sealing ring 114, a supporting block 115, a mounting hole 116, a nut 117, a secondary guide sleeve 118, an external clamp 119, a primary guide sleeve 120, a locking steel ball 121, a locking groove 122, a primary rodless cavity oil hole 123, a primary rod cavity oil hole 124, a secondary rodless cavity oil hole 125, a secondary rod cavity oil hole 201, a sensing oil cylinder 202, a connecting plate 203, a sensing oil cylinder 204, a piston 205, a piston rod 206, a second cylinder barrel 207 and a second sensor.
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 8, a two-stage oil cylinder with a sensor includes a cylinder 101, a first-stage piston 102 and a first-stage piston rod 103 are movably disposed in the cylinder 101, a second-stage piston 104 and a second-stage piston rod 105 are movably disposed in the first-stage piston rod 103, a sensing oil cylinder 201 is connected to an outer side of the cylinder 101, a connecting plate 202 is connected to a piston rod 205 of the sensing oil cylinder 201, a lower end of the connecting plate 202 is connected to a flange 106, and the flange 106 is fixedly connected to a front end of the first-stage piston rod 103; the inside of one-level piston 102 and second grade piston rod 105 is equipped with and sets up the through-hole 107 that has along the axial, install hollow installation outer tube 108 in the through-hole 107, the outer 108 pipe left ends of installation are connected in one-level piston 102, the right-hand member stretches into in the second grade piston rod 105, the right-hand member of installation outer tube 108 is connected with first magnetic ring 109, still be provided with hollow installation inner tube 110 in the installation outer tube 108, the right-hand member of installation inner tube 110 is connected at the right-hand member of second grade piston rod 105 inboardly, the left end of installation inner tube 110 is located in the installation outer tube 110, the inside first sensor 112 that is provided with of pole head 111 of second grade piston rod 105, the measuring staff of first sensor 112 stretches into in the installation inner tube 110.
In addition, the left end of the mounting outer tube 108 is connected within the primary piston 102 by a retainer ring. The outer mounting tube 108 is a welding part, the right end is provided with a first magnetic ring 109 which penetrates through the through holes 17 of the primary piston 102 and the secondary piston rod 105, and the left end retaining ring is fixed.
The right end of the mounting inner tube 110 is connected to the inside of the secondary piston rod 105 via a stopper, a seal ring 113 is provided between the outside of the right end of the mounting inner tube 110 and the inner wall of the secondary piston rod 15, and the left end of the mounting inner tube 110 is closed and connected to a support block 114. The installation inner tube 110 is the welding piece, and the right-hand member seals fluid through O type sealing washer, and the retaining ring is spacing, and left end welding is stifled to screw fixation supporting shoe 114, inside measuring staff of placing first sensor 112 for the inside fluid of hydro-cylinder is separated with first sensor 112, and sensor 112 installs on pole head 111, and fluid can not have outer the leakage.
The gauge head of the first sensor 112 is attached to the attachment hole 115 of the head 111, and the connection wire of the first sensor 112 is led out from the attachment hole 115.
Further, the rod head 111 is screwed to the right end of the secondary piston rod 105, and is locked to the secondary piston rod 105 by a nut 116. The rod head 111 can be adjusted in length through screwing and locked through the nut 116, so that the position of the rod head 111 can be adjusted.
In addition, the right end of the primary piston rod 103 is connected with a secondary guide sleeve 117, the secondary guide sleeve 117 is movably sleeved on the secondary piston rod 105, and the flange 106 is connected to the right end face of the secondary guide sleeve 117 through a screw.
In addition, the sensing oil cylinder 201 comprises a sensing oil cylinder barrel 203 connected to the cylinder barrel 101, a piston 204 and a piston rod 205 are arranged in the sensing oil cylinder barrel 203, a second magnetic ring 206 is connected in the piston 204, a second sensor 207 is installed at the left end of the sensing oil cylinder barrel 203, a measuring rod of the second sensor 207 extends into a blind hole in the piston rod 205, and the right end of the piston rod 205 is connected with the flange 106 through a connecting plate 202. The flange 106 is connected to the secondary guide sleeve 117 through screws, and moves telescopically with the primary piston rod 13, so that the rotation of the primary piston rod 13 is limited.
In addition, the right end of the flange 106 is connected with an external clamping device 118, and the external clamping device 118 is sleeved outside the secondary piston rod 105. The external clamping device 118 clamps the secondary piston rod 105 to lock the secondary piston rod 105 at any position, and the external clamping device 118 is a conventional external clamping device.
In addition, the right side of the cylinder barrel 101 is provided with a primary guide sleeve 119 matched with the primary piston rod 103, the left side of the primary guide sleeve 119 is provided with a locking steel ball 120, and the outer side of the primary piston 102 is provided with a locking groove 121 matched with the locking steel ball 120. The locking of the primary piston rod 103 is realized through the matching of the locking steel ball 120 and the locking groove 121 on the primary piston 102, and the locking of the primary piston rod 103 and the locking of the secondary piston rod 105 are mutually independent and do not interfere with each other.
In addition, a first-stage rodless cavity oil hole 122 is formed in the left end of the cylinder barrel 101, a first-stage rod cavity oil hole 123 is formed in the right end of the cylinder barrel 101, a second-stage rodless cavity oil hole 124 is formed in the first-stage piston 102, the first-stage rod cavity oil hole 122 is communicated with the second-stage rodless cavity oil hole 124, oil is introduced into the first-stage rodless cavity 122 to push the first-stage piston 102 to move right, the oil pushes the second-stage piston 104 to move right through the second-stage rodless cavity oil hole 124, and a second-stage rod cavity oil hole 125 is formed in the second-stage piston rod 105.
Be different from prior art, the utility model discloses two-stage hydro-cylinder with sensor increases the independent sensor of two-stage on the hydro-cylinder, has realized the accurate control of hydro-cylinder motion, and through setting up two-stage locking structure, unblock pressure is low, long service life, and the adjustable precision requirement that can lock of pole head position has reduced external structure spare simultaneously.
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 (10)
1. A two-stage oil cylinder with a sensor comprises a cylinder barrel, wherein a first-stage piston and a first-stage piston rod are movably arranged in the cylinder barrel, and a second-stage piston rod are movably arranged in the first-stage piston rod; the utility model discloses a hydraulic pressure sensor, including one-level piston and second grade piston rod, the inside of one-level piston and second grade piston rod is equipped with along the axial through-hole of seting up, install hollow installation outer tube in the through-hole, installation outer tube left end is connected in the one-level piston, and the right-hand member stretches into in the second grade piston rod, the right-hand member of installation outer tube is connected with first magnetic ring, still be provided with hollow installation inner tube in the installation outer tube, the right-hand member of installation inner tube is connected at the right-hand member inboard of second grade piston rod, the left end of installation inner tube is located in the installation outer tube, the inside first sensor that is provided with of pole head of second grade piston rod, the measuring staff of first sensor stretches into in the installation inner tube.
2. The two-stage oil cylinder with the sensor according to claim 1, wherein the left end of the mounting outer tube is connected in the one-stage piston through a retainer ring.
3. The two-stage oil cylinder with the sensor according to claim 1, wherein the right end of the installation inner tube is connected in the second-stage piston rod through a retaining ring, a sealing ring is arranged between the outer side of the right end of the installation inner tube and the inner wall of the second-stage piston rod, and the left end of the installation inner tube is closed and is connected with a supporting block.
4. The two-stage cylinder with sensor according to claim 1, wherein the probe of the first sensor is mounted in a mounting hole of the head, and the connection wire of the first sensor is led out from the mounting hole.
5. The two-stage cylinder with the sensor according to claim 4, wherein the rod head is screwed to the right end of the two-stage piston rod and is locked to the two-stage piston rod by a nut.
6. The two-stage oil cylinder with the sensor according to any one of claims 1 to 5, wherein a second-stage guide sleeve is connected to the right end of the first-stage piston rod, the second-stage guide sleeve is movably sleeved on the second-stage piston rod, and the flange is connected to the right end face of the second-stage guide sleeve through a screw.
7. The two-stage cylinder with the sensor according to claim 6, wherein the sensing cylinder comprises a sensing cylinder barrel connected to the cylinder barrel, a piston and a piston rod are arranged in the sensing cylinder barrel, a second magnetic ring is connected to the piston, a second sensor is installed at the left end of the sensing cylinder barrel, a measuring rod of the second sensor extends into a blind hole in the piston rod, and the right end of the piston rod is connected to the flange through a connecting plate.
8. The two-stage oil cylinder with the sensor according to claim 7, wherein an external clamping device is connected to the right end of the flange, and the external clamping device is sleeved on the outer side of the two-stage piston rod.
9. The two-stage oil cylinder with the sensor according to claim 8, wherein a first-stage guide sleeve matched with the first-stage piston rod is arranged on the right side of the cylinder barrel, a locking steel ball is arranged on the left side of the first-stage guide sleeve, and a locking groove matched with the locking steel ball is formed in the outer side of the first-stage piston.
10. The two-stage oil cylinder with the sensor according to claim 9, wherein the cylinder barrel has a first-stage rodless cavity oil hole at a left end thereof and a first-stage rod cavity oil hole at a right end thereof, the first-stage piston has a second-stage rodless cavity oil hole therein, the first-stage rod cavity oil hole communicates with the second-stage rodless cavity oil hole, the first-stage rodless cavity oil hole is filled with oil to push the first-stage piston to move right, the oil pushes the second-stage piston to move right through the second-stage rodless cavity oil hole, and the second-stage rod cavity oil hole is formed in the second-stage piston rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122106504.XU CN217080952U (en) | 2022-03-22 | 2022-03-22 | Two-stage oil cylinder with sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122106504.XU CN217080952U (en) | 2022-03-22 | 2022-03-22 | Two-stage oil cylinder with sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217080952U true CN217080952U (en) | 2022-07-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122106504.XU Active CN217080952U (en) | 2022-03-22 | 2022-03-22 | Two-stage oil cylinder with sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217080952U (en) |
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2022
- 2022-03-22 CN CN202122106504.XU patent/CN217080952U/en active Active
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