CN220944006U - Pneumatic pressing device of traction machine brake - Google Patents
Pneumatic pressing device of traction machine brake Download PDFInfo
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- CN220944006U CN220944006U CN202322332891.8U CN202322332891U CN220944006U CN 220944006 U CN220944006 U CN 220944006U CN 202322332891 U CN202322332891 U CN 202322332891U CN 220944006 U CN220944006 U CN 220944006U
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- 238000003825 pressing Methods 0.000 title claims abstract description 34
- 230000007246 mechanism Effects 0.000 claims abstract description 80
- 230000033001 locomotion Effects 0.000 claims abstract description 4
- 230000006835 compression Effects 0.000 claims description 3
- 238000007906 compression Methods 0.000 claims description 3
- 238000000034 method Methods 0.000 description 10
- 238000004458 analytical method Methods 0.000 description 5
- 230000008901 benefit Effects 0.000 description 4
- 230000003321 amplification Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
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- 238000012986 modification Methods 0.000 description 3
- 238000003199 nucleic acid amplification method Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000004075 alteration Effects 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
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Abstract
The utility model provides a pneumatic pressing device of a traction machine brake, which comprises a frame body, a pneumatic mechanism, a connecting rod amplifying mechanism and a pressing mechanism, wherein the pneumatic mechanism is arranged on the frame body, the free telescopic end of the pneumatic mechanism is in driving connection with the pressing mechanism through the connecting rod amplifying mechanism, the pressing mechanism is also connected with the frame body through a guiding limiting structure and is used for guiding and limiting the movement direction of the pressing mechanism, and a placement position is arranged on the frame body corresponding to the lower part of the pressing mechanism. The pneumatic pressing device of the traction machine brake amplifies the pressure of the pneumatic mechanism through the connecting rod amplifying mechanism, so that the requirement of large pressure can be met only by a small-size cylinder, and the pneumatic pressing device is simple in structure and small in size.
Description
Technical Field
The utility model relates to the field of elevator traction machines, in particular to a pneumatic pressing device of a traction machine brake.
Background
The traction machine brake is an important safety component in an elevator system, and the braking force of the traction machine brake is mainly provided by a pressure spring arranged inside, and the traction machine brake has the characteristics of small compression amount and large elastic force in the working process. In the assembling process of the brake, the magnetic yoke and the armature are pressed together by overcoming the elastic force of the pressure spring, and then the pressure maintaining assembling bolt is carried out.
At present, the pressing process of the magnetic yoke and the armature of the brake is mostly operated by adopting a hydraulic machine, and because an oil tank and a motor are required to be configured, the hydraulic machine is large in size, occupies more space, inevitably has oil leakage condition and is poor in environmental protection. If a pneumatic cylinder is adopted, only one pneumatic source is generally configured in a workshop, and the number of working procedures of the pneumatic cylinder in the workshop is large, so that the pneumatic fluctuation is easy to cause, the pressure and the cylinder diameter of the pneumatic cylinder are required to be greatly exceeded, the pressure maintaining assembly work is prevented from being influenced when the pneumatic fluctuation occurs, but the use cost is greatly increased, and the working space is occupied.
Disclosure of Invention
In order to solve the problems in the background art, the utility model provides a pneumatic pressing device of a traction machine brake.
The utility model provides a pneumatic compression fittings of hauler stopper, includes support body, pneumatic mechanism, connecting rod amplification mechanism and roof pressure mechanism, pneumatic mechanism sets up on the support body, pneumatic mechanism's free flexible end passes through connecting rod amplification mechanism drive connection roof pressure mechanism, roof pressure mechanism still through direction limit structure with the support body is connected and is right roof pressure mechanism's direction of motion carries out the direction spacing, correspond on the support body roof pressure mechanism's below is provided with the position of putting.
Based on the above, the link amplifying mechanism comprises two groups of link mechanisms which are symmetrically arranged, each link mechanism comprises a first link, a second link and a third link, one end of each first link is hinged to the upper portion of the frame body, one end of each second link is hinged to the free telescopic end of the pneumatic mechanism, the other end of each first link and the other end of each second link are respectively hinged to one end of each third link, and the other end of each third link is hinged to the top of the pushing mechanism.
Based on the above, in the contracted state, the included angle between the second connecting rod and the vertical direction is 30 degrees, the included angle between the second connecting rod and the third connecting rod is 0 degrees, the included angle between the first connecting rod and the third connecting rod is 60 degrees, and the included angle between the third connecting rod and the vertical direction is 30 degrees; in the jacking state, the included angle between the second connecting rod and the vertical direction is at least 80 degrees, the included angle between the second connecting rod and the third connecting rod is at least 80 degrees, the included angle between the first connecting rod and the third connecting rod is at least 160 degrees, and the included angle between the third connecting rod and the vertical direction is at most 10 degrees.
Based on the above, the frame body comprises a bottom plate and a top plate, wherein the bottom plate is vertically provided with an upright post, and the top plate is arranged at the top of the upright post; the pneumatic mechanism is arranged on the top plate.
Based on the above, the pushing mechanism comprises a sliding plate and a pressing block, the pressing block is arranged at the bottom of the sliding plate, and the tail end of the connecting rod amplifying mechanism is hinged at the top of the sliding plate.
Based on the above, the limiting through hole is formed in the sliding plate, the limiting through hole is sleeved outside the upright post in a sliding manner, and the limiting through hole and the upright post form a guiding limiting structure.
Based on the above, the bottom plate is provided with a placement position corresponding to the pressing block.
Based on the above, pneumatic mechanism is the cylinder, the cylinder sets up on the roof and the telescopic link of cylinder is vertical to set up downwards, and the telescopic link end drive connection connecting rod of cylinder enlarges mechanism.
Compared with the prior art, the utility model has substantial characteristics and progress, and particularly, the pressure of the pneumatic mechanism is amplified through the connecting rod amplifying mechanism, so that the requirement of large pressure can be met only by a cylinder with smaller specification, and the utility model has simple structure and small volume.
Drawings
Fig. 1 is a schematic structural view of the present utility model.
Fig. 2 is a schematic view of the structure of the telescopic rod of the cylinder of the present utility model in a contracted state.
Fig. 3 is a schematic structural view of the cylinder expansion link in the state of stretching and pressure maintaining.
FIG. 4 is a schematic diagram of the stress analysis structure of the present utility model.
Reference numerals illustrate: 1. a cylinder; 2. a top plate; 3. a second link; 4. a column; 5. a sliding plate; 6. a bottom plate; 7. a traction machine brake; 8. briquetting; 9. a third link; 10. a first link.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without any inventive effort, are intended to be within the scope of the utility model.
As shown in fig. 1, a pneumatic pressing device of a traction machine brake comprises a frame body, a pneumatic mechanism, a connecting rod amplifying mechanism and a pressing mechanism, wherein the pneumatic mechanism is arranged on the frame body, a free telescopic end of the pneumatic mechanism is in driving connection with the pressing mechanism through the connecting rod amplifying mechanism, the pressing mechanism is also connected with the frame body through a guiding limiting structure and is used for guiding and limiting the movement direction of the pressing mechanism, and a placement position is arranged on the frame body corresponding to the lower part of the pressing mechanism.
When the traction machine is used, the telescopic rod of the pneumatic mechanism is in a contracted state, after the traction machine brake 7 is placed at the placement position, the pneumatic mechanism is started, the pneumatic mechanism stretches and drives the jacking mechanism to move downwards through the connecting rod amplifying mechanism, and the traction machine brake 7 on the placement position is jacked. The guide limiting structure is used for limiting the jacking mechanism to move only in the vertical dimension, the connecting rod amplifying mechanism amplifies the pressure of the pneumatic mechanism, so that the pressure during pressure maintaining is far greater than the pressure required by pressure maintaining, and the pressure is not lower than the pressure required by pressure maintaining even if the air pressure fluctuates.
Specifically, the support body includes bottom plate 6 and roof 2, vertical stand 4 that is provided with on the bottom plate 6, stand 4 also regard as the guide post in the guide structure simultaneously, roof 2 sets up the stand 4 top. The pneumatic mechanism is actually an air cylinder 1, the air cylinder is arranged on the top plate 2, a telescopic rod of the air cylinder 1 is vertically downwards arranged, and the tail end of the telescopic rod of the air cylinder 1 is connected with the top of the connecting rod amplifying mechanism in a connecting mode. The jacking mechanism comprises a sliding plate 5 and a pressing block 8, the pressing block 8 is arranged at the bottom of the sliding plate 5 and used for adapting and jacking a traction machine brake 7, and the tail end of the connecting rod amplifying mechanism is hinged to the top of the sliding plate 5. The sliding plate 5 is provided with a limiting through hole, the limiting through hole is sleeved outside the upright post 4 in a sliding mode, the limiting through hole and the upright post 4 form a guiding limiting structure, and when the air cylinder 1 drives the sliding plate 5 to move through the connecting rod amplifying mechanism, the upright post 4 and the limiting through hole limit the sliding plate 5 to only move up and down.
The connecting rod amplifying mechanism comprises two groups of connecting rod mechanisms which are symmetrically arranged, each connecting rod mechanism comprises a first connecting rod 10, a second connecting rod 3 and a third connecting rod 9, one end of each first connecting rod 10 is hinged to the upper portion of the frame body, one end of each second connecting rod 3 is hinged to the free telescopic end of the pneumatic mechanism, the other end of each first connecting rod 10 and the other end of each second connecting rod 3 are respectively hinged to one end of each third connecting rod 9, and the other end of each third connecting rod 9 is hinged to the top of the pushing mechanism.
As shown in fig. 2, in the contracted state, the telescopic rod of the air cylinder 1 has an included angle of 30 ° between the second connecting rod 3 and the vertical direction, an included angle of 0 ° between the second connecting rod 3 and the third connecting rod 9, an included angle of 60 ° between the first connecting rod 10 and the third connecting rod 9, and an included angle of 30 ° between the third connecting rod 9 and the vertical direction. As shown in fig. 3, in the pressing state, the included angle between the second connecting rod 3 and the vertical direction is at least 80 °, the included angle between the second connecting rod 3 and the third connecting rod 9 is at least 80 °, the included angle between the first connecting rod 10 and the third connecting rod 9 is at least 160 °, and the included angle between the third connecting rod 9 and the vertical direction is at most 10 °.
As shown in fig. 4: the point a and the point a 'respectively represent the hinging point of the first connecting rod and the top plate, the point o represents the hinging point of the second connecting rod and the telescopic rod of the cylinder, the point b and the point b' respectively represent the hinging point of the first connecting rod, the second connecting rod and the third connecting rod, the point c and the point c respectively represent the hinging point of the third connecting rod and the sliding plate, namely ab represents the first connecting rod, bo represents the second connecting rod and bc represents the third connecting rod, and then the stress analysis is carried out on each point as follows (only the stress value is analyzed to assist understanding, the stress directions such as signs and the like are not involved in the formula):
① Stress analysis is carried out on the o point to calculate Fob
Namely:
② Stress analysis is carried out on the point b to calculate Fbc
According to sine law:
③ Carrying out stress analysis on the point c
Fc＝Fcb×cosδ
In this embodiment, in the initial position, α=60°, β=0°, γ=60°, δ=30°, and the cylinder extension length is zero. At this time, the pressure Fc to the slide plate and the pressure Fo to the cylinder are calculated according to the above formula:
The pressure output by the device is as follows:
Fc+Fc'＝1.732Fo
i.e. the pressure is amplified by a factor of 1.732.
When the brake is completely pressed, alpha is more than or equal to 160 degrees, beta is more than or equal to 80 degrees, gamma is more than or equal to 160 degrees, and delta is less than or equal to 10 degrees at the end position, namely the cylinder stretches out longest. At this time, the pressure Fc to the slide plate and the pressure Fo to the cylinder are calculated according to the above formula:
Fc≥8.15Fo
The pressure output by the device is as follows: f c+Fc'≥16.3Fo
I.e. the pressure is amplified by more than 16.3 times.
Through the effect of connecting rod amplification mechanism, the pressure of cylinder has been enlarged greatly for can adopt less cylinder can satisfy the needs, like 0.7 MPa's pressure in this embodiment, normally need at least 300 mm's cylinder diameter, only need behind this structure 60-80mm cylinder diameter the cylinder can, reduced the volume of cylinder greatly, reduced the space occupy and reduced the cost, also can not have the condition such as oil leak, environmental protection nature is strong.
The foregoing examples illustrate only a few embodiments of the utility model and are described in detail herein without thereby limiting the scope of the utility model. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the utility model, which are all within the scope of the utility model. Accordingly, the scope of protection of the present utility model is to be determined by the appended claims.
The basic principles of the present utility model have been described above in connection with specific embodiments, but it should be noted that the advantages, benefits, effects, etc. mentioned in the present utility model are merely examples and not intended to be limiting, and these advantages, benefits, effects, etc. are not to be construed as necessarily possessed by the various embodiments of the utility model. Furthermore, the specific details disclosed herein are for purposes of illustration and understanding only, and are not intended to be limiting, as the utility model is not necessarily limited to practice with the above described specific details.
The block diagrams of the devices, apparatuses, devices, systems referred to in the present utility model are merely illustrative examples and are not intended to require or imply that the connections, arrangements, configurations must be made in the manner shown in the block diagrams. As will be appreciated by one of skill in the art, the devices, apparatuses, devices, systems may be connected, arranged, configured in any manner. Words such as "including," "comprising," "having," and the like are words of openness and mean "including but not limited to," and are used interchangeably therewith. The terms "or" and "as used herein refer to and are used interchangeably with the term" and/or "unless the context clearly indicates otherwise. The term "such as" as used herein refers to, and is used interchangeably with, the phrase "such as, but not limited to.
In addition, as used herein, the use of "or" in the recitation of items beginning with "at least one" indicates a separate recitation, e.g., "at least one of A, B or C" recitation means a or B or C, or AB or AC or BC, or ABC (i.e., a and B and C). Furthermore, the term "exemplary" does not mean that the described example is preferred or better than other examples.
It is also noted that in the systems and methods of the present utility model, components or steps may be disassembled and/or assembled. Such resolution and/or recombination should be considered as equivalents of the present utility model, and various changes, substitutions and alterations to the techniques described herein may be made without departing from the techniques defined by the appended claims. Furthermore, the scope of the claims hereof is not to be limited to the exact aspects of the devices, machines, manufacture, compositions of matter, means, methods, and acts described above. The compositions, means, methods, or acts of the presently existing or later to be developed that perform substantially the same function or achieve substantially the same result as the corresponding aspects described herein may be utilized. Accordingly, the appended claims are intended to include within their scope such apparatus, machines, manufacture, compositions of matter, means, methods, or acts.
The previous description of the disclosed aspects is provided to enable any person skilled in the art to make or use the present utility model. Various modifications to these aspects will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other aspects without departing from the scope of the utility model. Thus, the present utility model is not intended to be limited to the aspects shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
The foregoing description has been presented for purposes of illustration and description. Furthermore, this description is not intended to limit embodiments of the utility model to the form disclosed herein. Although a number of example aspects and embodiments have been discussed above, a person of ordinary skill in the art will recognize certain variations, modifications, alterations, additions, and subcombinations thereof.
Claims (6)
1. The utility model provides a pneumatic compression fittings of hauler stopper which characterized in that: the pneumatic mechanism is arranged on the frame body, the free telescopic end of the pneumatic mechanism is in driving connection with the jacking mechanism through the connecting rod amplifying mechanism, the jacking mechanism is also connected with the frame body through a guide limiting structure and is used for guiding and limiting the movement direction of the jacking mechanism, and a placement position is arranged on the frame body corresponding to the lower part of the jacking mechanism; the connecting rod amplifying mechanism comprises two groups of connecting rod mechanisms which are symmetrically arranged, the connecting rod mechanisms comprise a first connecting rod, a second connecting rod and a third connecting rod, one end of the first connecting rod is hinged to the upper portion of the frame body, one end of the second connecting rod is hinged to the free telescopic end of the pneumatic mechanism, the other end of the first connecting rod and the other end of the second connecting rod are respectively hinged to one end of the third connecting rod, and the other end of the third connecting rod is hinged to the top of the pressing mechanism; under the shrinkage state, the included angle between the second connecting rod and the vertical direction is 30 degrees, the included angle between the second connecting rod and the third connecting rod is 0 degree, the included angle between the first connecting rod and the third connecting rod is 60 degrees, and the included angle between the third connecting rod and the vertical direction is 30 degrees; in the jacking state, the included angle between the second connecting rod and the vertical direction is at least 80 degrees, the included angle between the second connecting rod and the third connecting rod is at least 80 degrees, the included angle between the first connecting rod and the third connecting rod is at least 160 degrees, and the included angle between the third connecting rod and the vertical direction is at most 10 degrees.
2. The pneumatic pressing device of a traction machine brake according to claim 1, wherein: the frame body comprises a bottom plate and a top plate, wherein an upright post is vertically arranged on the bottom plate, and the top plate is arranged at the top of the upright post; the pneumatic mechanism is arranged on the top plate.
3. The pneumatic pressing device of a traction machine brake according to claim 1, wherein: the jacking mechanism comprises a sliding plate and a pressing block, the pressing block is arranged at the bottom of the sliding plate, and the tail end of the connecting rod amplifying mechanism is hinged to the top of the sliding plate.
4. The pneumatic pressing device of a traction machine brake according to claim 3, wherein: the sliding plate is provided with a limiting through hole, the limiting through hole is sleeved outside the upright post in a sliding mode, and the limiting through hole and the upright post form a guiding limiting structure.
5. The pneumatic pressing device of a traction machine brake according to claim 2, wherein: the bottom plate is provided with a placement position corresponding to the pressing block.
6. The pneumatic pressing device of a traction machine brake according to claim 1, wherein: the pneumatic mechanism is a cylinder, the cylinder is arranged on the top plate, the telescopic rod of the cylinder is arranged downwards vertically, and the tail end of the telescopic rod of the cylinder is connected with the connecting rod amplifying mechanism in a driving mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322332891.8U CN220944006U (en) | 2023-08-29 | 2023-08-29 | Pneumatic pressing device of traction machine brake |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322332891.8U CN220944006U (en) | 2023-08-29 | 2023-08-29 | Pneumatic pressing device of traction machine brake |
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| Publication Number | Publication Date |
|---|---|
| CN220944006U true CN220944006U (en) | 2024-05-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322332891.8U Active CN220944006U (en) | 2023-08-29 | 2023-08-29 | Pneumatic pressing device of traction machine brake |
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| Country | Link |
|---|---|
| CN (1) | CN220944006U (en) |
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- 2023-08-29 CN CN202322332891.8U patent/CN220944006U/en active Active
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