CN218581952U - Hydraulic cylinder locking mechanism - Google Patents
Hydraulic cylinder locking mechanism Download PDFInfo
- Publication number
- CN218581952U CN218581952U CN202221869371.XU CN202221869371U CN218581952U CN 218581952 U CN218581952 U CN 218581952U CN 202221869371 U CN202221869371 U CN 202221869371U CN 218581952 U CN218581952 U CN 218581952U
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- piston rod
- rod
- swivel nut
- locking mechanism
- hydraulic cylinder
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Abstract
The utility model discloses a pneumatic cylinder locking mechanism, there is the swivel nut through threaded connection on the piston rod screw rod, the swivel nut opposite side is provided with the support, be fixed with the pinion rack on the support and make the swivel nut can reciprocate through rotating the screw rod, the swivel nut can drive the pinion rack and remove, the pinion rack removes and drives the sleeve pipe through the gear and rotate, the sleeve pipe rotates and to drive the lock plate and stretch out or the withdrawal, can block at the top of cylinder body after the lock plate stretches out, can prevent the piston rod shrink, set up a plurality of pin pole subassemblies, the lock plate that can control the optional position stretches out or the withdrawal, realize the simple operation, can conveniently change the locking height.
Description
Technical Field
The utility model belongs to pneumatic cylinder locking field especially relates to a pneumatic cylinder locking mechanism.
Background
The electric automation is an important technology which can improve the production efficiency and realize the automation of production and life. In the process of realizing automation of production and life, the hydraulic cylinder is used as a common device and has an important function, and functions of meeting automation requirements such as lifting, stretching and adjusting can be realized through the hydraulic cylinder. The hydraulic cylinder can bear large load in the using process, and is required to stably bear the load for a long time without any displacement when the movement is stopped, so the hydraulic cylinder is required to be controlled to stop through a locking mechanism, one of the currently adopted modes is locking through a mode of sealing an oil way, but the bearing capacity is limited, a valve or a pipeline can be damaged when the pressure is too high, the other mode is a mode of independently increasing a locking structure, for example, the patent document No. CN205078546U, the disclosed hydraulic cylinder safety locking sleeve can increase the locking strength compared with the mode of independently controlling hydraulic locking, the locking sleeve is arranged on a piston rod to achieve the limiting locking effect, but the installation and the disassembly in the using process are relatively complicated, because a bolt needs to be installed or disassembled, the locking effect has a larger relation with the fastening effect of the bolt and a nut, and therefore, when the locking height of the piston rod of the hydraulic cylinder needs to be changed, the defect of inconvenience exists.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide an: the hydraulic cylinder locking mechanism is convenient to operate and change the locking height.
The utility model adopts the technical scheme as follows:
the utility model provides a hydraulic cylinder locking mechanism, includes the pneumatic cylinder body, and the pneumatic cylinder body has cylinder body and piston rod, the piston rod sets up the cavity, is provided with the screw rod in the cavity, the screw rod rotates with the piston rod to be connected, and threaded connection has the swivel nut on the screw rod, and swivel nut one side is provided with guide structure, and the swivel nut opposite side is provided with the support, be fixed with the pinion rack on the support, be provided with a plurality of pin rod subassemblies along the axial on the piston rod, the pin rod subassembly includes sleeve pipe, lock plate and the mounting hole along radially directional seting up on the piston rod, the sleeve pipe rotates to be connected in the mounting hole, and lock plate threaded connection is intraductal at the sleeve, and the lock plate runs through the piston rod and rather than sliding connection, the coaxial fixed gear that has of one end that the sleeve pipe is located the piston rod, gear and pinion rack meshing transmission.
The technical scheme is that the upper end of the piston rod is provided with a connecting hole along the radial direction, a rotating shaft is rotatably connected in the connecting hole, one end of the rotating shaft, which is positioned in the piston rod, is coaxially fixed with a second bevel gear, the top of the screw rod is coaxially fixed with a first bevel gear, and the first bevel gear and the second bevel gear are in meshing transmission.
The technical scheme is that the guide structure comprises a limiting rod fixed on the side face of the threaded sleeve, a limiting sliding groove is formed in the piston rod, and the end part of the limiting rod is located in the limiting sliding groove and is in sliding connection with the limiting sliding groove.
The further technical scheme is that a limiting ring is fixed at one end, far away from the threaded sleeve, of the sleeve, and an annular limiting groove correspondingly matched with the limiting ring is formed in the mounting hole.
The pin rod assembly comprises two pin rod assemblies symmetrically arranged about the axis of the piston rod, and the toothed plate comprises two toothed plates.
To sum up, owing to adopted above-mentioned technical scheme, the beneficial effects of the utility model are that:
through threaded connection on the piston rod screw rod, the swivel nut opposite side is provided with the support, it makes the swivel nut can reciprocate to be fixed with the pinion rack on the support through rotating the screw rod, the swivel nut can drive the pinion rack and remove, the pinion rack removes and drives the sleeve pipe through the gear and rotate, the sleeve pipe rotates and can drive the lock plate and stretch out or retract, the lock plate can block at the top of cylinder body after stretching out, can prevent the piston rod shrink, set up a plurality of pin rod subassemblies, the lock plate that can control optional position stretches out or retract, realize the simple operation, can conveniently change the locking height.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic view of the structure of the other side of the state shown in FIG. 1;
FIG. 3 is a schematic structural view of the upper part of the tubular box of the present invention;
FIG. 4 is a schematic view of the lower structure of the tubular box of the present invention;
FIG. 5 is a schematic sectional view of the tubular box of the present invention;
fig. 6 is a schematic view of one of the support structures of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments.
As shown in fig. 1-6. The utility model provides a hydraulic cylinder locking mechanism, includes the pneumatic cylinder body, the pneumatic cylinder body has cylinder body 1 and piston rod 2, piston rod 2 sets up cavity 201, is provided with screw rod 3 in the cavity 201, screw rod 3 rotates with piston rod 2 to be connected, and threaded connection has swivel nut 6 on the screw rod 3, and 6 one sides of swivel nut are provided with guide structure, and 6 opposite sides of swivel nut are provided with support 7, be fixed with pinion rack 8 on the support 7, be provided with a plurality of pin rod subassemblies along the axial on the piston rod 2, the pin rod subassembly includes sleeve pipe 10, lock plate 11 and the mounting hole 15 of seting up along radial direction on piston rod 2, sleeve pipe 10 rotates to be connected in mounting hole 15, and lock plate 11 threaded connection is in sleeve pipe 10, and lock plate 11 runs through piston rod 2 and rather than sliding connection, the coaxial gear 9 that is fixed with gear 9 in the one end that sleeve pipe 10 is located piston rod 2, gear 9 and pinion rack 8 meshing transmission.
During the use, through rotating screw rod 3, drive swivel nut 6 removes, make pinion rack 8 can drive the gear 9 rotation on the sleeve pipe 10 that corresponds, and then make sleeve pipe 10 rotate and stretch out or retract in order to drive locking plate 11, locking plate 11 is flat structure from top to bottom, both sides have the internal thread assorted external screw thread with sleeve pipe 10 spiral shell, have on the piston rod 2 with the spacing notch 204 of locking plate 11 assorted, locking plate 11 slides but can not rotate in spacing notch 204, the telescopic piston rod 2 in screw rod 3 upper end, be convenient for drive screw rod 3 rotates.
Have swivel nut 6 through threaded connection on 2 screw rods 3 of piston rod, 6 opposite sides of swivel nut are provided with support 7, it makes swivel nut 6 can reciprocate to be fixed with pinion rack 8 on support 7 through rotating screw rod 3, 6 can drive pinion rack 8 and remove of swivel nut, pinion rack 8 removes and drives sleeve pipe 10 through gear 9 and rotate, sleeve pipe 10 rotates and can drive locking plate 11 and stretch out or retract, can block at the top of cylinder body 1 after locking plate 11 stretches out, can prevent 2 contractions of piston rod, set up a plurality of pin pole subassemblies, locking plate 11 that can control the optional position stretches out or retract, realize the simple operation, can conveniently change the locking height.
The upper end of the piston rod 2 is provided with a connecting hole along the radial direction, a rotating shaft 403 is connected in the connecting hole in a rotating manner, a second bevel gear 402 is coaxially fixed at one end of the rotating shaft 403 positioned in the piston rod 2, a first bevel gear 401 is coaxially fixed at the top of the screw rod 3, the first bevel gear 401 is in meshing transmission with the second bevel gear 402, the screw rod 3 can be driven to rotate by driving the rotating shaft 403 to be in meshing transmission with the first bevel gear 401 through the second bevel gear 402, in this way, the upper end of the screw rod 3 does not need to extend out of the piston rod 2, and the end part of the rotating shaft 403 can be fixed with a rotating handle 404.
The guide structure comprises a limiting rod 5 fixed on the side face of the threaded sleeve 6, a limiting sliding groove 202 is formed in the piston rod 2, the end portion of the limiting rod 5 is located in the limiting sliding groove 202 and is in sliding connection with the limiting sliding groove 202, and the guide effect of the threaded sleeve 6 during moving is achieved through the limiting rod 5 and the limiting sliding groove 202.
A limiting ring 12 is fixed at one end of the sleeve 10 far away from the threaded sleeve 6, and an annular limiting groove 203 correspondingly matched with the limiting ring 12 is arranged in the mounting hole 15, so that the sleeve 10 is ensured to rotate but axially positioned.
The pin rod assembly comprises two pin rod assemblies symmetrically arranged relative to the axis of the piston rod 2, and the toothed plates 8 comprise two toothed plates, so that the locking strength can be increased.
The above is merely a preferred embodiment of the present invention.
Claims (5)
1. The utility model provides a hydraulic cylinder locking mechanism, includes the pneumatic cylinder body, the pneumatic cylinder body has cylinder body (1) and piston rod (2), its characterized in that, piston rod (2) set up cavity (201), are provided with screw rod (3) in cavity (201), screw rod (3) rotate with piston rod (2) to be connected, threaded connection has swivel nut (6) on screw rod (3), and swivel nut (6) one side is provided with guide structure, and swivel nut (6) opposite side is provided with support (7), be fixed with pinion rack (8) on support (7), be provided with a plurality of pin rod subassemblies along the axial on piston rod (2), the pin rod subassembly includes sleeve pipe (10), lock plate (11) and mounting hole (15) seted up along radial direction on piston rod (2), sleeve pipe (10) rotate to be connected in mounting hole (15), lock plate (11) threaded connection is in sleeve pipe (10), and lock plate (11) run through piston rod (2) and rather than sliding connection, the one end that sleeve pipe (10) are located piston rod (2) is fixed with gear (9), coaxial gear (9) and pinion rack (8) transmission mesh.
2. The locking mechanism of a hydraulic cylinder according to claim 1, wherein the upper end of the piston rod (2) is provided with a connecting hole along a radial direction, a rotating shaft (403) is rotatably connected in the connecting hole, a second bevel gear (402) is coaxially fixed at one end of the rotating shaft (403) located in the piston rod (2), a first bevel gear (401) is coaxially fixed at the top of the screw rod (3), and the first bevel gear (401) and the second bevel gear (402) are in meshing transmission.
3. The locking mechanism of a hydraulic cylinder according to claim 1, wherein the guiding structure comprises a limiting rod (5) fixed on the side surface of the threaded sleeve (6), a limiting sliding groove (202) is formed in the piston rod (2), and the end of the limiting rod (5) is located in the limiting sliding groove (202) and is connected with the limiting sliding groove in a sliding manner.
4. The locking mechanism of a hydraulic cylinder according to claim 1, characterized in that a limit ring (12) is fixed on one end of the sleeve (10) far away from the threaded sleeve (6), and an annular limit groove (203) correspondingly matched with the limit ring (12) is arranged in the mounting hole (15).
5. A hydraulic cylinder locking mechanism according to claim 1, characterized in that the pin lever assembly comprises two symmetrically arranged about the axis of the piston rod (2) and the toothed plate (8) comprises two.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221869371.XU CN218581952U (en) | 2022-07-20 | 2022-07-20 | Hydraulic cylinder locking mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221869371.XU CN218581952U (en) | 2022-07-20 | 2022-07-20 | Hydraulic cylinder locking mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218581952U true CN218581952U (en) | 2023-03-07 |
Family
ID=85361419
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221869371.XU Active CN218581952U (en) | 2022-07-20 | 2022-07-20 | Hydraulic cylinder locking mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218581952U (en) |
-
2022
- 2022-07-20 CN CN202221869371.XU patent/CN218581952U/en active Active
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