CN213711471U - Hydraulic oil cylinder for double mechanical locks of axial force support servo system - Google Patents
Hydraulic oil cylinder for double mechanical locks of axial force support servo system Download PDFInfo
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- CN213711471U CN213711471U CN202022338205.4U CN202022338205U CN213711471U CN 213711471 U CN213711471 U CN 213711471U CN 202022338205 U CN202022338205 U CN 202022338205U CN 213711471 U CN213711471 U CN 213711471U
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Abstract
The utility model discloses a hydraulic cylinder for two mechanical locks of axial force support servo system, including pneumatic cylinder body, thrust rod subassembly, auto-lock subassembly, lock nut and self-interacting support assembly, the pneumatic cylinder body includes cylinder, sets up the piston in the cylinder and the jar pole of being connected with the piston; the thrust rod assembly comprises a telescopic rod connected with the cylinder rod, and two rack plates are symmetrically and fixedly arranged on two sides of the telescopic rod; the self-adjusting support assembly comprises a support plate and an adjusting ball head, and the self-adjusting assembly comprises a protection plate, a baffle plate, a support cylinder, a mounting flange, two pressing blocks, two jacking columns, two belleville springs, two unlocking small oil cylinders and two sliding locking blocks. The utility model discloses only adopt the simple hydraulic pressure oil circuit of hydraulic oil to realize two mechanical lock functions, compact structure, safe and reliable has improved the work efficiency when pre-installation, debugging axial force support servo.
Description
Technical Field
The invention relates to the technical field of mechanical locks of engineering hydraulic cylinders, in particular to a hydraulic cylinder with a double mechanical lock structure comprising self-locking and manual locking, which is used for a hydraulic cylinder in an axial force support servo system.
Background
When a foundation pit is excavated, in order to protect the surrounding environment and the operation safety, a construction unit can use an axial force support servo system to effectively control the deformation of the foundation pit. The hydraulic oil cylinder is installed in a foundation pit as an actuating mechanism for supporting the servo system, and a manual mechanical lock is generally arranged on the hydraulic oil cylinder and is realized by processing trapezoidal threads on a thrust shaft of the hydraulic oil cylinder. During operation, the hydraulic oil cylinder pushes the wall of the foundation pit to set the pushing force, and then a worker descends into the foundation pit to rotate the locking nut. Although the steel support failure caused by the fact that the hydraulic oil cylinder retreats due to factors such as hydraulic system faults can be effectively avoided, the thrust value needs to be set for multiple times in the operation process to adapt to the soil layer strength of the foundation pit, and once the thrust value is set, a worker needs to screw the locking nut down to the foundation pit for one time. Not only wastes time and labor and has low efficiency, but also increases the threat coefficient of workers. In addition, because the working condition in the foundation pit is complex, in order to ensure the construction safety, the components of the axial force support servo system in the foundation pit cannot be electric devices.
At present, a hydraulic oil cylinder with a double mechanical locks, which is provided with an existing manual mechanical lock and an automatic mechanical lock and is controlled only by oil pressure, is urgently needed, namely, the construction safety is ensured by the automatic mechanical lock when an axial force supporting servo system is tested and preassembled, a worker screws a locking nut into a foundation pit once after a set value is reached, and the double mechanical locks work simultaneously at the moment to ensure the construction safety.
SUMMERY OF THE UTILITY MODEL
In order to overcome the defects of the prior art, the utility model aims to provide a hydraulic cylinder for an axial force supporting servo system double mechanical lock.
The utility model adopts the technical proposal that: a hydraulic cylinder for a double mechanical lock of an axial force support servo system comprises a hydraulic cylinder body, a thrust rod assembly, a self-locking assembly, a locking nut and a self-adjusting support assembly, wherein the hydraulic cylinder body comprises a cylinder barrel, a piston arranged in the cylinder barrel and a cylinder rod connected with the piston; the thrust rod assembly comprises a telescopic rod connected with the cylinder rod, and two rack plates are symmetrically and fixedly arranged on two sides of the telescopic rod; the self-adjusting support assembly comprises a support plate and an adjusting ball head, the support plate is fixedly welded with the adjusting ball head, and the adjusting ball head is connected with the telescopic rod through a screw; the self-locking assembly comprises a protection plate, a baffle plate, a support cylinder, a mounting flange, two pressing blocks, two top columns, two belleville springs, two unlocking small oil cylinders and two sliding locking blocks, the mounting flange is fixedly connected with the cylinder barrel, the baffle plate and the mounting flange are respectively welded at two ends of the support cylinder, the protection plate is fixedly connected with the baffle plate through screws, so that a sliding groove for the sliding locking block to freely slide in is formed between the protection plate and the baffle plate, the two sliding locking blocks are both arranged in the sliding groove in a sliding manner, the two sliding locking blocks are symmetrically arranged at two sides of the telescopic rod, and a channel for the telescopic rod to stretch and retract back and forth is formed among the protection plate, the baffle; the first cylinder body and the first telescopic link of every unblock little hydro-cylinder respectively with two slip locking piece fixed connection, the first cylinder body of unblock little hydro-cylinder is connected with unblock hydro-cylinder hydraulic fluid port, two briquetting symmetries set up at the both ends of baffle and all with baffle fixed connection, two fore-set symmetries set up the both sides at the telescopic link, and two disc spring symmetries set up the both sides at the telescopic link, and the fore-set is close to the one end of telescopic link and supports on the telescopic link, disc spring's both ends support respectively on the fore-set and the baffle of corresponding one side.
Furthermore, a hanging ring is fixedly mounted on the cylinder barrel.
Furthermore, the internal thread of the locking nut is connected with the external thread of the telescopic rod.
Compared with the prior art, the utility model discloses following beneficial effect has: the hydraulic oil cylinder for the double mechanical locks of the axial force support servo system, which is disclosed by the utility model, realizes the double mechanical lock function only by adopting a hydraulic oil circuit with simple hydraulic oil, has compact structure, is safe and reliable, and improves the working efficiency when the axial force support servo system is preassembled and debugged; the utility model discloses can be used for carrying out the secondary on only the axial force of artifical mechanical lock supports servo system's pneumatic cylinder and reforms transform the processing simultaneously, reduce extravagantly, reduce cost.
Drawings
FIG. 1 is a front view of the present invention;
FIG. 2 is a half-sectional top view of the present invention;
FIG. 3 is a left side view of the utility model;
fig. 4 is a schematic structural diagram a of the present invention;
fig. 5 is a schematic structural diagram b of the present invention;
in the figure: 1. a piston; 2. a cylinder barrel; 3. a cylinder rod; 4. a telescopic rod; 5. a rack plate; 6. a protection plate; 7. a baffle plate; 8. a support cylinder; 9. installing a flange; 10. a rodless cavity oil port; 11. a rod cavity oil port; 12. a hoisting ring; 13. locking the nut; 14. a support plate; 15. adjusting the ball head; 16. briquetting; 17. a top pillar; 18. a belleville spring; 19 unlocking an oil cylinder oil port; 20. unlocking the small oil cylinder; 21. a sliding lock block; 22. a hydraulic cylinder body; 23. a self-locking assembly; 24. a self-adjusting support assembly; 25. a thrust rod assembly.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings and specific embodiments.
As shown in fig. 1 to 5, a hydraulic cylinder for a dual mechanical lock of an axial force support servo system includes a cylinder body 22, a thrust rod assembly 23, a self-locking assembly 24, a lock nut 13 and a self-adjusting support assembly 25.
The hydraulic cylinder body 22 includes a cylinder tube 2, a piston 1 disposed in the cylinder tube 2, and a cylinder rod 3 connected to the piston 1. The piston 1 drives the cylinder rod 3 to axially reciprocate along the cylinder barrel 2.
The cylinder barrel 2 is connected with a rodless cavity oil port 10 and a rod cavity oil port 11, and hydraulic oil enters the cylinder barrel 2 through the rodless cavity oil port 10 and the rod cavity oil port 11, so that the piston 1 moves, and the hydraulic cylinder is the prior art.
And a lifting ring 12 is fixedly mounted on the cylinder barrel 2, and the lifting ring 12 is used for lifting.
The thrust rod assembly 23 comprises an expansion rod 4 connected with the cylinder rod 3, and two rack plates 5 are symmetrically and fixedly mounted on two sides of the expansion rod 4. The cylinder rod 3 drives the telescopic rod 4 to reciprocate.
The self-adjusting support assembly 25 comprises a support plate 14 and an adjusting ball 15, and the support plate 14 is fixedly welded with the adjusting ball 15. The adjusting ball head 15 is connected with the telescopic rod 4 through a screw, and the adjusting ball head 15 has a self-adjusting function at a certain angle and can automatically adjust the attaching degree of the support plate 14 and the wall surface. The telescopic rod 4 drives the supporting plate 14 and the adjusting ball head 15 to move.
The self-locking assembly 24 comprises a protection plate 6, a baffle plate 7, a support cylinder 8, a mounting flange 9, two pressing blocks 16, two top columns 17, two belleville springs 18, two unlocking small oil cylinders 20 and two sliding locking blocks 21. The mounting flange 9 is fixedly connected with the cylinder barrel 2. The baffle plate 7 and the mounting flange 9 are respectively welded at two ends of the supporting cylinder 8, and an assembly is formed by welding the baffle plate 7, the supporting cylinder 8 and the mounting flange 9 together. Protection plate 6 passes through screw and baffle 7 fixed connection to make and form between protection plate 6 and the baffle 7 and supply the spout that the locking piece 21 freely slided in it, two slide locking pieces 21 all slide and set up in the spout, two slide locking piece 21 symmetries set up the both sides at telescopic link 4. And a passage for the telescopic rod 4 to extend and retract back and forth is formed among the protection plate 6, the baffle plate 7, the support cylinder 8 and the mounting flange 9.
The first cylinder body and the first telescopic rod of each unlocking small oil cylinder 20 are respectively and fixedly connected with the two sliding locking blocks 21. An unlocking cylinder oil port 19 is connected to the first cylinder body of the unlocking small oil cylinder 20.
Two pressing blocks 16 are symmetrically arranged at two ends of the baffle 7 and are fixedly connected with the baffle 7. The two top posts 17 are symmetrically arranged on two sides of the telescopic rod 4, and the two belleville springs 18 are symmetrically arranged on two sides of the telescopic rod 4. One end of the top column 17 close to the telescopic rod 4 is abutted against the telescopic rod 4. Two ends of the belleville spring 18 respectively abut against the top pillar 17 and the baffle 7 on one corresponding side.
The pressing block 16 is fixed on the baffle 7 to ensure that the belleville spring 18 is not separated, and the top column 17 is pressed at the middle position of the sliding locking block 21.
The internal thread of lock nut 13 is connected with the external thread of telescopic link 4, and 4M 20's blind hole screw of equidistance processing are convenient for installation helping hand stick when artifical mechanical lock on lock nut 13 excircle.
Specifically, the clearance between the hole formed in the protection plate 6 and the outer contour surface of the telescopic rod 4 is less than or equal to 2mm, so that the effect of preventing the residual soil is achieved, and the telescopic rod 4 is prevented from rotating in a large angle.
Hydraulic oil enters the small unlocking oil cylinder 20 from the oil ports 19 of the two unlocking oil cylinders connected in parallel, the pressure is increased, the first piston rod of the small unlocking oil cylinder 20 extends out, the two sliding locking blocks 21 are driven to overcome the pressure of the belleville spring 18 to move outwards, then the sliding locking blocks 21 are far away from the rack plate 5 on the telescopic rod 4, and a distance is reserved between the sliding locking blocks 21 and the rack plate 5, so that unlocking is completed.
Hydraulic oil gets into in the cylinder 2 to realize that cylinder pole 3 advances or retreats, when cylinder pole 3 retreats, the perpendicular distance that self-locking nut 13 will be greater than the telescopic link 4 and retreat the stroke distance that moves back to guard plate 6.
After the self-adjusting supporting assembly 25 and the wall surface reach a pressure set value, hydraulic oil of an oil port 19 of the unlocking oil cylinder is cut off, the unlocking small oil cylinder 20 returns under the pressure of the belleville spring 18, the two sliding locking blocks 21 return, and then the sliding locking blocks are meshed with the rack plate 5 on the telescopic rod 4 to finish self-locking.
After the working condition requirement is met, a worker screws the locking nut 13 to the protection plate 6 in the foundation pit, the manual mechanical lock finishes working, and the double mechanical locks work simultaneously at the moment to ensure the construction safety.
If the pressure needs to be loaded or the telescopic rod 4 needs to be extended, the automatic unlocking process is implemented, and after the required value is reached, the self-locking process is implemented.
If the pressure needs to be unloaded or the telescopic rod 4 needs to be retracted, a worker rotates the locking nut 13 in the foundation pit to increase the distance to the protection plate 6, the unlocking of the mechanical and manual lock is completed, the automatic unlocking process is implemented, and then the unloading function is completed.
The above embodiments are based on the technical solution of the present invention, and detailed implementation and specific operation processes are given, but the present invention is not limited to the above embodiments.
Claims (3)
1. The utility model provides a hydraulic cylinder that is used for two mechanical locks of axial force support servo which characterized in that: the self-adjusting hydraulic cylinder comprises a hydraulic cylinder body, a thrust rod assembly, a self-locking assembly, a locking nut and a self-adjusting supporting assembly, wherein the hydraulic cylinder body comprises a cylinder barrel, a piston arranged in the cylinder barrel and a cylinder rod connected with the piston; the thrust rod assembly comprises a telescopic rod connected with the cylinder rod, and two rack plates are symmetrically and fixedly arranged on two sides of the telescopic rod; the self-adjusting support assembly comprises a support plate and an adjusting ball head, the support plate is fixedly welded with the adjusting ball head, and the adjusting ball head is connected with the telescopic rod through a screw; the self-locking assembly comprises a protection plate, a baffle plate, a support cylinder, a mounting flange, two pressing blocks, two support pillars, two belleville springs, two unlocking small oil cylinders and two sliding locking blocks, the mounting flange is fixedly connected with the cylinder barrel, the baffle plate and the mounting flange are respectively welded at two ends of the support cylinder, the protection plate is fixedly connected with the baffle plate through screws, so that a sliding groove for the sliding locking blocks to freely slide in is formed between the protection plate and the baffle plate, the two sliding locking blocks are both arranged in the sliding groove in a sliding manner, the two sliding locking blocks are symmetrically arranged at two sides of the telescopic rod, and a channel for the telescopic rod to stretch and retract back and forth is formed among the protection plate, the; the first cylinder body and the first telescopic link of every unblock little hydro-cylinder respectively with two slip locking piece fixed connection, the first cylinder body of unblock little hydro-cylinder is connected with unblock hydro-cylinder hydraulic fluid port, two briquetting symmetries set up at the both ends of baffle and all with baffle fixed connection, two fore-set symmetries set up the both sides at the telescopic link, and two disc spring symmetries set up the both sides at the telescopic link, and the fore-set is close to the one end of telescopic link and supports on the telescopic link, disc spring's both ends support respectively on the fore-set and the baffle of corresponding one side.
2. A hydraulic ram for a dual mechanical lock of an axial force support servo as claimed in claim 1 wherein: and a lifting ring is fixedly arranged on the cylinder barrel.
3. A hydraulic ram for a dual mechanical lock of an axial force support servo as claimed in claim 1 wherein: the internal thread of the locking nut is connected with the external thread of the telescopic rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022338205.4U CN213711471U (en) | 2020-10-20 | 2020-10-20 | Hydraulic oil cylinder for double mechanical locks of axial force support servo system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022338205.4U CN213711471U (en) | 2020-10-20 | 2020-10-20 | Hydraulic oil cylinder for double mechanical locks of axial force support servo system |
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| CN213711471U true CN213711471U (en) | 2021-07-16 |
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| CN202022338205.4U Active CN213711471U (en) | 2020-10-20 | 2020-10-20 | Hydraulic oil cylinder for double mechanical locks of axial force support servo system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117067415A (en) * | 2023-10-11 | 2023-11-17 | 福建合盈机械有限公司 | Pressure-adjustable hydraulic supporting device |
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2020
- 2020-10-20 CN CN202022338205.4U patent/CN213711471U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117067415A (en) * | 2023-10-11 | 2023-11-17 | 福建合盈机械有限公司 | Pressure-adjustable hydraulic supporting device |
| CN117067415B (en) * | 2023-10-11 | 2023-12-19 | 福建合盈机械有限公司 | Pressure-adjustable hydraulic supporting device |
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