CN215609309U - Electric self-locking device - Google Patents
Electric self-locking device Download PDFInfo
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- CN215609309U CN215609309U CN202121883333.5U CN202121883333U CN215609309U CN 215609309 U CN215609309 U CN 215609309U CN 202121883333 U CN202121883333 U CN 202121883333U CN 215609309 U CN215609309 U CN 215609309U
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- piston rod
- locking device
- self
- bearing
- end cover
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Abstract
The utility model relates to an electric self-locking device, comprising: the power assembly comprises a joint bearing, a piston rod, a lead screw and a lead screw nut, the joint bearing is connected with the piston rod, the piston rod is connected with the lead screw nut, the lead screw penetrates through the piston rod and the lead screw nut, and the lead screw is respectively and coaxially arranged with the lead screw nut and the piston rod; the self-locking assembly comprises a rotating shaft, a rotor and a stator, the rotating shaft is respectively connected with the lead screw and the rotor and is coaxially arranged, and the rotor is arranged in the stator and is coaxially arranged. The utility model adopts the self-locking assembly to realize the effects of power-off locking and power-on loosening, improves the safety and the operation efficiency of equipment under the condition of sudden power failure, and is convenient to install.
Description
Technical Field
The utility model relates to the technical field of mechanical transmission, in particular to an electric self-locking device.
Background
The safety pressure lever and the mechanical arm seat are very common on large-scale entertainment equipment, particularly for high-altitude entertainment projects and the like, and whether the self-locking devices of the safety pressure lever and the mechanical arm seat are reliable or not directly relates to the safety of passengers. The existing safety pressure lever and mechanical arm seat adopt hydraulic locking and electromagnetic locking, and the safety pressure lever and seat form has more or less problems, for example, complete sealing and no leakage cannot be realized in a hydraulic locking device, especially, hydraulic oil inevitably leaks to influence the safety of equipment under the condition of bearing certain pressure, the installation is complex, the electromagnetic locking is possible to be accidentally disabled under the condition of sudden power failure, and the safety of the equipment is seriously influenced by the accidental damage, and the operation efficiency is reduced.
Therefore, it is necessary to provide an electric self-locking device.
SUMMERY OF THE UTILITY MODEL
Therefore, the technical problem to be solved by the utility model is to overcome the safety problem existing in the existing self-locking device.
In order to solve the above technical problem, the present invention provides an electric self-locking device, comprising:
the power assembly comprises a joint bearing, a piston rod, a screw rod and a screw nut, the joint bearing is connected with the piston rod, the piston rod is connected with the screw nut, the screw rod penetrates through the piston rod and the screw nut, and the screw rod is respectively and coaxially arranged with the screw nut and the piston rod;
the self-locking assembly comprises a rotating shaft, a rotor and a stator, wherein the rotating shaft is respectively connected with the screw rod and the rotor and is coaxially arranged, and the rotor is arranged in the stator and is coaxially arranged.
In one embodiment of the utility model, the rotor is a squirrel cage structure.
In one embodiment of the utility model, a key groove is arranged on the rotating shaft, a key is arranged in the key groove, and the rotating shaft is connected with the screw rod through the key.
In an embodiment of the present invention, the present invention further includes a housing assembly, the housing assembly includes a front end cover, a bottom end cover, a fixing column and a cylinder, the cylinder is respectively connected to the front end cover and the bottom end cover, the screw rod and the screw rod nut are coaxially disposed in the cylinder, the fixing column is disposed in the front end cover and connected to the cylinder, and the piston rod is inserted into the fixing column.
In one embodiment of the utility model, fixing plates are symmetrically arranged at two ends of the front end cover.
In an embodiment of the present invention, the power assembly further includes a bearing, the bearing is disposed between the bottom end cover and the cylinder, the self-locking assembly is disposed in the bottom end cover, and the rotating shaft and the bearing are coaxially disposed and are in interference fit.
In one embodiment of the utility model, a seal ring is arranged between the bearing and the cylinder barrel.
In one embodiment of the utility model, the bottom end cap is detachably connected to the bearing.
In one embodiment of the utility model, the joint bearing is detachably connected with the piston rod.
In one embodiment of the utility model, the spherical plain bearing is a rod end spherical plain bearing.
Compared with the prior art, the technical scheme of the utility model has the following advantages:
the self-locking assembly can lock the screw rod through the rotating shaft of the rotor when the power is suddenly cut off, namely, under the action of no power, the device realizes power-off locking, and when the power is on, the rotating shaft of the rotor rotates to realize power-on loosening, so that the safety and the operating efficiency of equipment are improved, and the device is convenient to install.
Drawings
In order that the present disclosure may be more readily and clearly understood, reference is now made to the following detailed description of the embodiments of the present disclosure taken in conjunction with the accompanying drawings, in which
FIG. 1 is a schematic structural view in elevation of the present invention;
FIG. 2 is a schematic structural view of a perspective view of the present invention;
fig. 3 is a schematic structural view of the self-locking assembly of the present invention.
The specification reference numbers indicate: 1. a power assembly; 11. a knuckle bearing; 12. a piston rod; 13. a screw rod; 14. a feed screw nut; 15. a bearing; 2. a self-locking assembly; 21. a rotating shaft; 22. a stator; 23. a rotor; 3. a housing assembly; 31. a front end cover; 311. a fixing plate; 32. fixing a column; 33. a cylinder barrel; 34. a bottom end cap.
Detailed Description
The present invention is further described below in conjunction with the following figures and specific examples so that those skilled in the art may better understand the present invention and practice it, but the examples are not intended to limit the present invention.
Referring to fig. 1 to 3, an electric self-locking device of the present invention includes: the self-locking device comprises a power assembly 1, a self-locking assembly 2 and a shell assembly 3, wherein the power assembly 1 comprises a joint bearing 11, a piston rod 12, a screw rod 13 and a screw nut 14, the joint bearing 11 is connected with the piston rod 12, the piston rod 12 is connected with the screw nut 14, the screw rod 13 penetrates through the piston rod 12 and the screw nut 14, the screw rod 13 is respectively arranged coaxially with the screw nut 14 and the piston rod 12, and preferably, the joint bearing 11 can be a rod end joint bearing; the self-locking assembly 2 comprises a rotating shaft 21, a stator 22 and a rotor 23, the rotating shaft 21 is respectively connected with the screw rod 13 and the rotor 23 and is coaxially arranged, the rotor 23 is arranged in the stator 22 and is coaxially arranged, a key groove is formed in the rotating shaft 21, a key is arranged in the key groove, the rotating shaft 21 is connected with the screw rod 13 through the key, the structure is simple, the assembly and disassembly are convenient, and preferably, the rotor 23 can be of a squirrel-cage structure; the shell assembly 3 comprises a front end cover 31, a bottom end cover 34, a fixing column 32 and a cylinder barrel 33, the cylinder barrel 33 is respectively connected with the front end cover 31 and the bottom end cover 34, a screw rod 13 and a screw rod nut 14 are arranged in the cylinder barrel 33 and are coaxially arranged, the fixing column 32 is arranged in the front end cover 31 and is connected with the cylinder barrel 33, a piston rod 12 penetrates through the fixing column 32, the cylinder barrel 33 can effectively protect the power assembly 1, and the fixing column 32 is used as a support of the device, so that the device is more stable; the power assembly 1 further comprises a bearing 15, the bearing 15 is arranged between the bottom end cover 34 and the cylinder barrel 33, a sealing ring is arranged between the bearing 15 and the cylinder barrel 33, the sealing ring can prevent dust, water and other impurities from entering the bearing 15, the bearing 15 can support the screw rod 13 and the rotating shaft 21 to rotate, the self-locking assembly 2 is arranged in the bottom end cover 34, the rotating shaft 21 and the bearing 15 are coaxially arranged and are in interference fit, low-friction and high-precision rotation is achieved, the self-locking assembly 2 can be protected by the bottom end cover 34, fixing plates 311 are symmetrically arranged at two ends of the front end cover 31, the fixing plates 311 can facilitate installation of the device, the bottom end cover 34 and the bearing 15 are detachably connected, the joint bearing 11 and the piston rod 12 are detachably connected, and preferably, the connection mode can be screw connection.
The utility model provides an electric self-locking device, which has the following working principle: the exogenic action is on joint bearing 11, and joint bearing 11 drives piston rod 12 reciprocating motion, and piston rod 12 drives screw-nut 14 reciprocating motion, and screw-nut 14 drives the lead screw 13 rotatory, and lead screw 13 is connected with pivot 21, and self-locking subassembly 2 cuts off the power supply, and stator 22 does not have magnetism, and rotor 23, pivot 21 stop rotating, can pin the lead screw 13 rotatory to can pin piston rod 12 reciprocating motion, the pivot 21 of rotor 23 begins to rotate during the circular telegram. The self-locking assembly 2 can realize self-locking when power failure or line breakage occurs in emergency, and is applied to equipment, so that the safety and the operating efficiency of the equipment are improved, and the installation is convenient.
It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications therefrom are within the scope of the utility model.
Claims (10)
1. An electric self-locking device, characterized by comprising:
the power assembly comprises a joint bearing, a piston rod, a screw rod and a screw nut, the joint bearing is connected with the piston rod, the piston rod is connected with the screw nut, the screw rod penetrates through the piston rod and the screw nut, and the screw rod is coaxially arranged with the screw nut and the piston rod respectively;
the self-locking assembly comprises a rotating shaft, a rotor and a stator, wherein the rotating shaft is respectively connected with the screw rod and the rotor and is coaxially arranged, and the rotor is arranged in the stator and is coaxially arranged.
2. An electric self-locking device according to claim 1, characterized in that: the rotor is of a squirrel-cage structure.
3. An electric self-locking device according to claim 1, characterized in that: the rotating shaft is provided with a key groove, a key is arranged in the key groove, and the rotating shaft is connected with the screw rod through the key.
4. An electric self-locking device according to claim 1, characterized in that: the cylinder barrel is connected with the front end cover and the bottom end cover respectively, the screw rod and the screw rod nut are arranged in the cylinder barrel and are coaxially arranged, the fixing column is arranged in the front end cover and is connected with the cylinder barrel, and the piston rod is arranged in the fixing column in a penetrating mode.
5. An electric self-locking device according to claim 4, characterized in that: and fixing plates are symmetrically arranged at two ends of the front end cover.
6. An electric self-locking device according to claim 4, characterized in that: the power assembly further comprises a bearing, the bearing is arranged between the bottom end cover and the cylinder barrel, the self-locking assembly is arranged in the bottom end cover, and the rotating shaft and the bearing are coaxially arranged and in interference fit.
7. An electric self-locking device according to claim 6, characterized in that: and a sealing ring is arranged between the bearing and the cylinder barrel.
8. An electric self-locking device according to claim 6, characterized in that: the bottom end cover is detachably connected with the bearing.
9. An electric self-locking device according to claim 1, characterized in that: the joint bearing is detachably connected with the piston rod.
10. An electric self-locking device according to claim 1, characterized in that: the joint bearing is a rod end joint bearing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121883333.5U CN215609309U (en) | 2021-08-12 | 2021-08-12 | Electric self-locking device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121883333.5U CN215609309U (en) | 2021-08-12 | 2021-08-12 | Electric self-locking device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215609309U true CN215609309U (en) | 2022-01-25 |
Family
ID=79897424
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121883333.5U Active CN215609309U (en) | 2021-08-12 | 2021-08-12 | Electric self-locking device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215609309U (en) |
-
2021
- 2021-08-12 CN CN202121883333.5U patent/CN215609309U/en active Active
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