CN211975798U - Rack locking device - Google Patents
Rack locking device Download PDFInfo
- Publication number
- CN211975798U CN211975798U CN202020253922.4U CN202020253922U CN211975798U CN 211975798 U CN211975798 U CN 211975798U CN 202020253922 U CN202020253922 U CN 202020253922U CN 211975798 U CN211975798 U CN 211975798U
- Authority
- CN
- China
- Prior art keywords
- locking
- rack
- shell
- locking device
- guide seat
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Abstract
The patent discloses a rack locking device, it includes: the shell, establish guide holder and locking tooth piece in the casing, guide holder and locking tooth piece contact each other, and do not have fixed connection point between guide holder and the locking tooth piece, threaded connection puller bolt on the casing, the unblock double-screw bolt is connected to the locking tooth piece, outside the unblock double-screw bolt passes the casing, the unblock double-screw bolt is located the casing outer joint and has the unblock nut. The locking failure of the lifting device can not occur after the locking.
Description
Technical Field
The utility model relates to a rack and pinion drive mechanism part especially relates to a rack locking device.
Background
Racks are commonly used in various industrial fields to effect translational movement of facilities. The rack transmission is suitable for low-speed and heavy-load mechanical transmission and severe working environments with much dust and poor lubricating conditions, and is widely applied to mechanical equipment such as hoisting transportation, metallurgy, mines and the like. In various industrial fields where rack transmission is applied to vertical up-and-down motion, a speed reducer is generally used as a lifting device, and an output gear of the speed reducer is in meshed transmission with a rack, so that the rack drives a facility fixedly connected with the rack to ascend or descend. The input shaft of the reduction gear is connected to an electric motor or a hydraulic motor, and the electric motor or the hydraulic motor is generally provided with a brake for rapidly stopping the rotation of the output gear, thereby enabling the facility to be accurately positioned at a predetermined height. However, in the case of extreme load conditions or failure of the brake in long-term operation, the brake locking may fail to cause an operational accident.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a rack locking device, the condition of inefficacy can not appear after its locking.
In order to achieve the above object, the utility model discloses sea water tower locking device adopts following technical scheme, and it includes: the shell, establish guide holder and locking tooth piece in the casing, guide holder and locking tooth piece contact each other, and do not have fixed connection point between guide holder and the locking tooth piece, threaded connection puller bolt on the casing, the unblock double-screw bolt is connected to the locking tooth piece, outside the unblock double-screw bolt passes the casing, the unblock double-screw bolt is located the casing outer joint and has the unblock nut.
The shell is a shell of the lifting device.
The number of the puller bolts is two.
The two puller bolts are positioned on two sides of the unlocking stud.
The puller bolt is telescopic in the shell and can penetrate into the shell to prop the locking tooth block on the guide seat, so that the tooth part of the locking tooth block can be meshed with the rack.
The tooth part of the locking tooth block is exposed out of the guide seat.
The guide seat is L-shaped.
The utility model discloses a mechanical structure's casing and guide holder and locking tooth piece can not appear the condition of locking inefficacy when the stopper trouble after its locking, have avoided the appearance of work accident to have improved the reliability of locking. Secondly, its structure is simple relatively, and the locking step is simplified and is convenient for operate.
Drawings
Fig. 1 is a front view of an embodiment of the present invention, fig. 2 is a schematic view of fig. 1 showing the AA to the locked state, and fig. 3 is a schematic view of fig. 1 showing the AA to the unlocked state.
Description of reference numerals: 1. mounting a platform; 2. a lifting device; 3. a locking device; 4. an output gear; 5. a rack; 6. a facility; 7. a brake; 8. a motor; 9. a speed reducer; 10. a guide seat; 11. locking the tooth block; 12. jacking the bolt; 13. unlocking the nut; 14. and locking the stud.
Detailed Description
For a better understanding of the present invention, reference will now be made to the following detailed description taken in conjunction with the accompanying drawings. It is noted that all the figures schematically represent the relevant contents of the invention.
As shown in fig. 1, 2 and 3, the embodiment of the present invention includes: the lifting device 2 is connected to the mounting platform 1, the locking device is located inside the shell of the lifting device 2, and the structure of the locking device is simplified without independently arranging an independent locking device. The lifting device 2 includes: the reducer 9, the reducer 9 connects the output gear 4 and the motor 8, the motor connects the brake 7. The rack 5 is fixedly connected with facilities 6 (such as a lifting car, a lifting tower frame, a mixed iron furnace body and the like); the output gear 3 of the lifting device 2 rotates anticlockwise or clockwise to drive the rack 5 to move in a lifting or descending translational motion, and then the lifting or descending of the facility 6 is realized.
The locking device 3 includes: a guide seat 10 and a locking tooth block 11 are arranged in a shell of the lifting device 2, and the guide seat 10 is L-shaped. The guide seat 10 and the locking toothed block 11 are contacted with each other, the tooth part of the locking toothed block 11 is exposed out of the guide seat 10, and a fixed connection point is not arranged between the guide seat 10 and the locking toothed block 11, so that the locking toothed block 11 can move along the guide seat 10 to complete the locking operation meshed with the rack 5. The number of the tightening bolts 12 is two, and the two tightening bolts 12 are located at two sides of the unlocking stud 14. The puller bolt 12 extends and retracts in the shell of the lifting device 2, and the puller bolt 12 can go deep into the shell of the lifting device 2 to prop the locking tooth block 11 on the guide seat 10.
The utility model discloses a locking operation process does: in a first step, the lifting device lifts or lowers the rack 5 to a working height and is initially locked by the brake 7 on the motor 8. And secondly, screwing the locking nut until the locking nut is close to the tail end of the unlocking stud. And thirdly, screwing the locking bolt to enable the tail end of the locking bolt to extend into the shell of the lifting device and to be propped against the locking toothed block 11, and enabling the locking toothed block to approach the end face of the rack 5 along the guide seat 10 until the tooth part of the locking toothed block 11 enters the tooth groove of the rack 5 (at the moment, if the locking toothed block cannot be aligned, the rack 5 can be slowly lifted or lowered for proper adjustment). And fourthly, controlling the lifting device to slowly descend, observing the meshing condition of the locking tooth block 11 and the rack 5, and closing the lifting device when the locking tooth block and the rack are completely meshed. Fifthly, the unlocking nut 13 is screwed along the unlocking stud 14, and a certain pretightening force of the unlocking stud 14 is kept, so that the locking operation is further strengthened.
The utility model discloses an unblock operation process does: in the first step, the locking bolts 12 on both sides are unscrewed from the housing of the lifting device to release the compression of the locking tooth blocks. And secondly, starting the lifting device 2 to lift the rack 5 to a certain height, and temporarily locking the rack by the brake 7 to enable the locking tooth block 11 to generate a gap with the meshing surface of the rack 5. And secondly, gradually screwing an unlocking nut 13 on the unlocking stud 14 to drive the locking tooth block 11 to be far away from the rack 5 by the unlocking stud 14, so that the locking tooth block 11 is disengaged from the rack 5, and the locking tooth block 11 and the rack 5 are kept at a safe distance, thereby completing unlocking operation.
As the utility model discloses an improvement, also can adopt solitary casing to place guide holder and locking tooth piece, connect the casing on elevating gear to directly reform transform existing equipment.
The above-described embodiments only represent embodiments of the present invention, but should not be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.
Claims (7)
1. A rack locking device comprising: the casing, its characterized in that: the shell is internally provided with a guide seat and a locking tooth block which are in mutual contact, a fixed connection point is not arranged between the guide seat and the locking tooth block, the shell is in threaded connection with a puller bolt, the locking tooth block is connected with an unlocking stud, the unlocking stud penetrates out of the shell, and the unlocking stud is positioned outside the shell and is connected with an unlocking nut.
2. The rack locking device according to claim 1, wherein: the shell is a shell of the lifting device.
3. A rack locking device according to claim 1 or 2, wherein: the number of the puller bolts is two.
4. A rack locking device as claimed in claim 3, wherein: the two puller bolts are positioned on two sides of the unlocking stud.
5. A rack locking device according to claim 1 or 2, wherein: the puller bolt is telescopic in the shell and can penetrate into the shell to prop the locking tooth block on the guide seat, so that the tooth part of the locking tooth block can be meshed with the rack.
6. A rack locking device as claimed in claim 1, 2 or 4, wherein: the tooth part of the locking tooth block is exposed out of the guide seat.
7. A rack locking device as claimed in claim 1, 2 or 4, wherein: the guide seat is L-shaped.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020253922.4U CN211975798U (en) | 2020-03-05 | 2020-03-05 | Rack locking device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020253922.4U CN211975798U (en) | 2020-03-05 | 2020-03-05 | Rack locking device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211975798U true CN211975798U (en) | 2020-11-20 |
Family
ID=73377471
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020253922.4U Active CN211975798U (en) | 2020-03-05 | 2020-03-05 | Rack locking device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211975798U (en) |
-
2020
- 2020-03-05 CN CN202020253922.4U patent/CN211975798U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN111071950B (en) | Control method of mechanical jack with servo driving device | |
| US20160214835A1 (en) | Embedded safety elevator | |
| CN211975798U (en) | Rack locking device | |
| CN203612897U (en) | Upward lifting mechanical safety device for scissor car lifts | |
| CN201367726Y (en) | Lifter for high operation hanging basket | |
| CN212024726U (en) | Pin tooth locking device | |
| CN210419077U (en) | Safety nut elevator | |
| CN108626200B (en) | Mechanically following type oil cylinder | |
| CN210461572U (en) | Sliding assembly applied to vertical lifting mechanism and engaged by gear | |
| CN2717905Y (en) | Synchronous self-locking safety tongs | |
| CN201053307Y (en) | Self-elevating drilling platform locking device | |
| CN207618911U (en) | A kind of worm and gear auxiliary lifting mechanism | |
| CN208071047U (en) | A kind of hoisting type emergency rescue device for elevator suitable for Lao Lou transformations | |
| CN207581272U (en) | Automatic lifting follows mechanical safety | |
| CN208916716U (en) | A kind of hydraulic lifting oil cylinder of automatic self-locking | |
| CN208932928U (en) | A kind of braking safety device for elevating mechanism | |
| CN214570340U (en) | Cable vertical hoisting traction device | |
| CN205820839U (en) | A kind of fast opening blind door closure boom hoisting | |
| CN201907249U (en) | Solar cell module laminating machine with lead screw lifting mechanism | |
| CN214323173U (en) | Clamping device for overhauling and installing electromechanical equipment | |
| CN216549372U (en) | Load monitoring and protecting device for mine hoister | |
| CN216613748U (en) | Steel bar lifting appliance for crane | |
| CN212176504U (en) | Driving device and building outer frame | |
| CN204917517U (en) | Lift for stand wire rope protect locking device | |
| CN210892750U (en) | Full-automatic lifting device related to high-temperature sintering equipment of air pressure furnace |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |