CN204369492U - Pneumatic braking device on elevator machinery - Google Patents
Pneumatic braking device on elevator machinery Download PDFInfo
- Publication number
- CN204369492U CN204369492U CN201420752644.1U CN201420752644U CN204369492U CN 204369492 U CN204369492 U CN 204369492U CN 201420752644 U CN201420752644 U CN 201420752644U CN 204369492 U CN204369492 U CN 204369492U
- Authority
- CN
- China
- Prior art keywords
- taper hole
- internal taper
- resilient push
- braking device
- roller
- 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.)
- Expired - Fee Related
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Abstract
The utility model discloses the pneumatic braking device on a kind of elevator machinery, comprise the drg body of hollow and the resilient push of connecting brake body, described resilient push is circular, the middle part of described resilient push is provided with internal taper hole, several rollers are side by side provided with in described internal taper hole, described roller is all located on the large footpath of internal taper hole, and the inwall of roller and internal taper hole is inconsistent, the periphery of described resilient push is connected with in circular elasticity brake shoe, free air diffuser is provided with in described drg body, one end of described free air diffuser is connected with the servo cylinder of signal control, the other end of described free air diffuser is communicated with airtight plunger shaft, piston is provided with in described plunger shaft, described piston is connected with mast, the utility model is to solve pneumatic braking device additional on existing elevator machinery, take up room large, the problem that parts are many and maintenance cost is high.
Description
Technical field
The utility model relates to the safety apparatus on elevator machinery, particularly relates to the pneumatic braking device on a kind of elevator machinery.
Background technology
Drg utilizes friction principle to realize mechanism's braking.The friction part of drg, with the brake wheel in certain application force hold-down mechanism a certain, produces lock torque, utilizes this lock torque, and the moment that mass of object and force of inertia are produced reduces, until two moment balances, reaches the requirement of speed governing or braking.Higher brake torque often pursued by existing elevator machinery, but for the sake of security, need additional a set of pneumatic braking device, when there is breakdown of equipment or danger, pneumatic braking device can make equipment disengaging work, ensure safety, but existing pneumatic braking device is made up of more part, cost is higher and take sizable space, make installation, maintenance and use all quite inconvenience, and the environment that this pneumatic braking device uses is general comparatively severe, this makes the maintenance frequency increase, each maintenance takes up room greatly due to it, parts are many, make to remove and install work capacity large, maintenance cost is high.
Utility model content
The purpose of this utility model is to provide the pneumatic braking device on a kind of elevator machinery, and to solve pneumatic braking device additional on existing elevator machinery, take up room the problem large, parts are many and maintenance cost is high.
To achieve these goals, the utility model provides following technical scheme: the pneumatic braking device on elevator machinery, comprise the drg body of hollow and the resilient push of connecting brake body, described resilient push is circular, the middle part of described resilient push is provided with internal taper hole, several rollers are side by side provided with in described internal taper hole, described roller is all located on the large footpath of internal taper hole, and the inwall of roller and internal taper hole is inconsistent, the periphery of described resilient push is connected with in circular elasticity brake shoe, free air diffuser is provided with in described drg body, one end of described free air diffuser is connected with the servo cylinder of signal control, the other end of described free air diffuser is communicated with airtight plunger shaft, piston is provided with in described plunger shaft, described piston is connected with mast, described mast runs through the inwall of drg body and offsets with the roller of internal taper hole, Compress Spring is provided with between the inwall of described piston and drg body.
In such scheme, the large footpath of internal taper hole refers to the maximum of diameter in internal taper hole.
The principle of this programme is such: because free air diffuser is connected with the servo cylinder of signal control, when needs are braked elevator machinery, pressure gas enters in free air diffuser by the servo cylinder of signal control, because free air diffuser is communicated with airtight plunger shaft, piston is provided with in described plunger shaft, pressure in plunger shaft is increased, promote piston and overcome and drg body inwall between the resistance of Compress Spring, move right, because piston is connected with mast, described mast runs through the inwall of drg body and offsets with the roller of internal taper hole, piston driving mast moves to right, and roller is got in the internal taper hole in the middle part of resilient push, because roller is all located on the large footpath of internal taper hole, in roller moving process, the resilient push of both sides can be extruded, drive resilient push displacement, thus elasticity brake shoe is opened laterally, realize braking.
The utility model has the advantage of: the pneumatic braking device on this elevator machinery, stable equipment operation, structure is simple, volume is little, easy maintenance, use cost is low, simultaneously flexible to operation.
Preferably, described roller all adopts the cylindrical roller that size is identical, and the power that cylindrical roller not only bears is large, and when the resilient push of cylindrical roller extruding both sides, stress equalization, is beneficial to the resilient push of cylindrical roller extruding both sides.
Preferably, the tapering of the internal taper hole in described resilient push is 45 degree, is convenient to the resilient push better extruding both sides when cylindrical roller moves.
Preferably, the width of described resilient push is greater than the width of elasticity brake shoe, is beneficial to resilient push displacement band dynamic elasticity brake shoe and opens laterally.
Accompanying drawing explanation
Fig. 1 is the cutaway view of the pneumatic braking device embodiment on the utility model elevator machinery;
Fig. 2 is the front view of the pneumatic braking device embodiment on the utility model elevator machinery.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail:
Reference numeral in Figure of description comprises: drg body 1, resilient push 2, internal taper hole 3, cylindrical roller 4, elasticity brake shoe 5, free air diffuser 6, servo cylinder 7, plunger shaft 8, piston 9, mast 10, Compress Spring 11.
As shown in Figure 1, pneumatic braking device on elevator machinery, comprise the drg body 1 of hollow and the resilient push 2 of connecting brake body 1, the middle part of resilient push 2 is provided with internal taper hole 3, the tapering of internal taper hole 3 is 45 degree, the cylindrical roller 4 that three sizes being arranged side by side are identical is provided with in internal taper hole 3, two cylindrical rollers 4 are located on the large footpath of internal taper hole 3, and two cylindrical rollers 4 are inconsistent with the inwall of internal taper hole 3, the width of resilient push 2 is greater than the width of elasticity brake shoe 5, free air diffuser 6 is provided with in drg body 1, one end of free air diffuser 6 is connected with the servo cylinder 7 of signal control, the other end of free air diffuser 6 is communicated with airtight plunger shaft 8, piston 9 is provided with in plunger shaft 8, piston 9 is connected with mast 10, mast 10 runs through the inwall of drg body 1 and offsets with the cylindrical roller 4 of internal taper hole 3, Compress Spring 11 is provided with between the inwall of piston 9 and drg body 1.
As shown in Figure 2, resilient push 2 is in circular, and the periphery of resilient push 2 is connected with in circular elasticity brake shoe 5.
In the present embodiment, because free air diffuser 6 is connected with the servo cylinder 7 of signal control, when needs are braked elevator machinery, pressure gas enters in free air diffuser 6 by the servo cylinder 7 of signal control, because free air diffuser 6 is communicated with airtight plunger shaft 8, piston 9 is provided with in plunger shaft 8, pressure in plunger shaft 8 is increased, promote piston 9 and overcome and drg body 1 inwall between the resistance of Compress Spring 11, move right, because piston 9 is connected with mast 10, mast 10 runs through the inwall of drg body 1 and offsets with the cylindrical roller 4 in internal taper hole 3, piston 9 drives mast 10 to move to right, and cylindrical roller 4 is got in the internal taper hole 3 in the middle part of resilient push 2, because cylindrical roller 4 is all located on the large footpath of internal taper hole 3, in cylindrical roller 4 moving process, the resilient push 2 of both sides can be extruded, drive resilient push 2 displacement, thus elasticity brake shoe 5 is opened laterally, realize braking.Pneumatic braking device on this elevator machinery, stable equipment operation, structure is simple, volume is little, easy maintenance, and use cost is low, simultaneously flexible to operation.
Roller all adopts the cylindrical roller 4 that size is identical, the power that cylindrical roller 4 not only bears is large, and when cylindrical roller 4 extrudes the resilient push 2 of both sides, stress equalization, be beneficial to the resilient push 2 that cylindrical roller 4 extrudes both sides, the tapering of the internal taper hole 3 in resilient push 2 is 45 degree, is convenient to the resilient push 2 better extruding both sides when cylindrical roller 4 moves, the width of resilient push 2 is greater than the width of elasticity brake shoe 5, is beneficial to resilient push 2 displacement band dynamic elasticity brake shoe 5 and opens laterally.
Above-described is only preferred implementation of the present utility model; should be understood that; for a person skilled in the art; under the prerequisite not departing from the utility model structure; some distortion and improvement can also be made; these also should be considered as protection domain of the present utility model, and these all can not affect effect and the practical applicability of the utility model enforcement.
Claims (4)
1. the pneumatic braking device on elevator machinery, it is characterized in that, comprise the drg body of hollow and the resilient push of connecting brake body, described resilient push is circular, the middle part of described resilient push is provided with internal taper hole, several rollers are side by side provided with in described internal taper hole, described roller is all located on the large footpath of internal taper hole, and the inwall of roller and internal taper hole is inconsistent, the periphery of described resilient push is connected with in circular elasticity brake shoe, free air diffuser is provided with in described drg body, one end of described free air diffuser is connected with the servo cylinder of signal control, the other end of described free air diffuser is communicated with airtight plunger shaft, piston is provided with in described plunger shaft, described piston is connected with mast, described mast runs through the inwall of drg body and offsets with the roller of internal taper hole, Compress Spring is provided with between the inwall of described piston and drg body.
2. the pneumatic braking device on elevator machinery as claimed in claim 1, it is characterized in that, described roller all adopts the cylindrical roller that size is identical.
3. the pneumatic braking device on elevator machinery as claimed in claim 1, it is characterized in that, the tapering of the internal taper hole in described resilient push is 45 degree.
4. the pneumatic braking device on elevator machinery as claimed in claim 1, it is characterized in that, the width of described resilient push is greater than the width of elasticity brake shoe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420752644.1U CN204369492U (en) | 2014-12-03 | 2014-12-03 | Pneumatic braking device on elevator machinery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420752644.1U CN204369492U (en) | 2014-12-03 | 2014-12-03 | Pneumatic braking device on elevator machinery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204369492U true CN204369492U (en) | 2015-06-03 |
Family
ID=53325730
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420752644.1U Expired - Fee Related CN204369492U (en) | 2014-12-03 | 2014-12-03 | Pneumatic braking device on elevator machinery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204369492U (en) |
-
2014
- 2014-12-03 CN CN201420752644.1U patent/CN204369492U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150603 Termination date: 20151203 |
|
| EXPY | Termination of patent right or utility model |