CN114314240A - Elevator speed regulator - Google Patents
Elevator speed regulator Download PDFInfo
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- CN114314240A CN114314240A CN202210020492.5A CN202210020492A CN114314240A CN 114314240 A CN114314240 A CN 114314240A CN 202210020492 A CN202210020492 A CN 202210020492A CN 114314240 A CN114314240 A CN 114314240A
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- wheel
- speed limiting
- limiting wheel
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- pendulum bob
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- 229910000831 Steel Inorganic materials 0.000 claims abstract description 17
- 239000010959 steel Substances 0.000 claims abstract description 17
- 230000000903 blocking effect Effects 0.000 claims description 6
- 239000000463 material Substances 0.000 description 2
- 230000001960 triggered effect Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
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Abstract
The invention relates to the technical field of elevator braking, and particularly provides an elevator speed regulator which comprises a guide wheel, a speed limiting wheel, a main pendulum bob and a spring supporting rod, wherein a steel wire rope is wound on the guide wheel and the speed limiting wheel to drive the guide wheel and the speed limiting wheel to rotate, the middle part of the main pendulum bob is hinged to the edge of the speed limiting wheel, two sides of the hinged part of the main pendulum bob are respectively provided with a main hammer and a pawl, two ends of the spring supporting rod are respectively hinged to the speed limiting wheel and the main pendulum bob, the center of the speed limiting wheel is arranged on a main shaft through a bearing, the main shaft is also provided with a ratchet wheel, and the pawl is arranged close to the outer edge of the ratchet wheel. When the elevator descends at an overspeed, the main pendulum bob acts and is clamped with the ratchet wheel, so that the speed limiting wheel simultaneously drives the ratchet wheel and the main shaft to rotate to reduce the speed of the speed limiting wheel, meanwhile, the friction force between the speed limiting wheel and the steel wire rope wound on the speed limiting wheel is changed from rotating friction to sliding friction, the friction force is increased, and the braking force of the elevator when descending at an overspeed is increased.
Description
Technical Field
The invention relates to the technical field of elevator braking, in particular to an elevator speed regulator.
Background
Elevators are typically provided with a holding brake for holding the elevator car stationary when the car is stopped at the landing. In addition, the elevator is provided with a speed regulator device which is used for monitoring the lifting speed of the elevator car all the time and making the elevator car reaching the speed above the specified speed stop emergently, so the braking force and the sensitivity of the speed regulator determine whether the elevator car can be braked quickly, and the speed regulator with larger braking force is needed to be provided, and the braking effect when the elevator falls down is improved.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: the invention provides an elevator speed governor to solve the problem that the emergency braking force is small when the existing elevator is in overspeed and falls down.
The technical scheme adopted by the invention for solving the technical problems is as follows: an elevator speed regulator comprises a base, a steel wire rope, a guide wheel, a speed limiting wheel, a main pendulum and a spring supporting rod, wherein the guide wheel is fixed on the base through a guide support, the speed limiting wheel is connected with the base through a main shaft, the steel wire rope is wound on the guide wheel and the speed limiting wheel to drive the guide wheel and the speed limiting wheel to rotate, the middle of the main pendulum is hinged to the edge of the speed limiting wheel, a main hammer head and a pawl are arranged on two sides of the hinged position of the main pendulum respectively, one end of the spring supporting rod is hinged to one side, close to the pawl, of the main pendulum, the other end of the spring supporting rod is hinged to the speed limiting wheel, the center of the speed limiting wheel is mounted on the main shaft through a bearing, a ratchet wheel is further mounted on the main shaft, the main shaft penetrates through the center of the ratchet wheel and is fixedly connected with the ratchet wheel, and the pawl is arranged close to the outer edge of the ratchet wheel, the speed limiting wheel rotates to drive the main pendulum bob to deflect, so that the pawl moves towards the ratchet wheel.
Preferably, the speed-limiting wheel is further provided with an auxiliary pendulum bob, the main pendulum bob and the auxiliary pendulum bob are arranged around the center of the speed-limiting wheel, the middle part of the auxiliary pendulum bob is hinged to the speed-limiting wheel, one side of the hinged part of the auxiliary pendulum bob is provided with an auxiliary hammer head, the other side of the hinged part of the auxiliary pendulum bob is hinged to one side, close to the hammer head, of the main pendulum bob through a connecting rod, two ends of the connecting rod are Y-shaped fork openings, and the auxiliary pendulum bob and the main pendulum bob are respectively hinged to the Y-shaped fork openings at one end of the connecting rod.
Preferably, a shifting rod is further arranged beside the pawl of the main swing shaft, one end of the shifting rod is hinged and fixed through a shifting rod support, the other end of the shifting rod is connected with a push-pull electromagnet, the shifting rod is arranged close to the pawl, and the push-pull electromagnet can drive the shifting rod to move so that the shifting rod pushes the pawl to move towards the ratchet wheel.
Preferably, the tail end of the deflector rod is bent towards the pawl by taking the connecting position of the deflector rod and the push-pull type electromagnet as a center, and a deflector rod column which is in interference fit with the bent position of the deflector rod is further fixed on the pawl.
Preferably, rope blocking rods are further mounted on two sides of the speed limiting wheel.
Preferably, the guide bracket is further provided with a limit switch, and the limit switch is close to the edge of the speed limiting wheel.
The elevator overspeed descent control device has the advantages that the elevator overspeed descent control device is provided with the main pendulum bob and the ratchet wheel, when an elevator descends at an overspeed, the main pendulum bob acts and is clamped with the ratchet wheel, the main pendulum bob is arranged on the speed limiting wheel, the ratchet wheel is fixedly arranged on the main shaft, the speed limiting wheel is arranged on the main shaft through the bearing, after the main pendulum bob is clamped with the ratchet wheel, the speed limiting wheel simultaneously drives the ratchet wheel and the main shaft to rotate so as to decelerate the speed limiting wheel, at the moment, the friction force between the speed limiting wheel and a steel wire rope wound on the speed limiting wheel is changed from rotating friction to sliding friction, the friction force is increased, and therefore the braking force of the elevator during overspeed descent is increased.
Drawings
The invention is further illustrated with reference to the following figures and examples.
Fig. 1 is a schematic structural view of a preferred embodiment of an elevator governor of the present invention;
fig. 2 is an overall schematic view of an elevator governor of the present invention;
fig. 3 is an exploded view of an elevator governor of the present invention;
FIG. 4 is a schematic view of the structure of the main and auxiliary pendulums of an elevator governor of the present invention;
fig. 5 is a schematic view showing the operating states of a lever and a pawl of an elevator governor according to the present invention.
In the figure, the device comprises a car 1, a car 2, a base 3, a steel wire rope 4, a guide wheel 5, a speed limiting wheel 6, a main pendulum bob 7, a spring support rod 8, a guide support 9, a pawl 10, a main shaft 11, a ratchet wheel 12, an auxiliary pendulum bob 13, a connecting rod 14, a shifting rod 15, a shifting rod support 16, a push-pull electromagnet 17, a shifting rod column 18, a rope blocking rod 19 and a limit switch.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", and the like, indicate orientations and positional relationships based on the orientations and positional relationships shown in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be considered as limiting the present invention.
Furthermore, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "connected" and "connected" are to be interpreted broadly, e.g., as being fixed or detachable or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art. In addition, in the description of the present invention, "a plurality" means two or more unless otherwise specified.
As shown in fig. 1 to 5, the present invention provides an embodiment of an elevator speed regulator, which includes a car 1, a base 2, a steel wire rope 3, a guide wheel 4, a speed limiting wheel 5, a main pendulum 6, and a spring support rod 7, wherein the base 2 is installed at the bottom of the car 1, the steel wire rope 3 is connected to the car 1, the guide wheel 4 is fixed on the base 2 through a guide bracket 8, the speed limiting wheel 5 is connected to the base 2 through a main shaft 10, and the steel wire rope 3 is wound around the guide wheel 4 and the speed limiting wheel 5 to drive the guide wheel 4 and the speed limiting wheel 5 to rotate.
The middle part of main pendulum 6 articulates in the edge of speed limit wheel 5, the both sides of the articulated department of main pendulum 6 are provided with main tup and pawl 9 respectively, the one end of spring support bar 7 articulates the one side that is close to pawl 9 on main pendulum 6, the other end of spring support bar 7 articulates on speed limit wheel 5, the center of speed limit wheel 5 is passed through the bearing and is installed on main shaft 10, still install ratchet 11 on main shaft 10, main shaft 10 pass the center of ratchet 11 and with ratchet 11 fixed connection, pawl 9 is close to the outer fringe setting of ratchet 11. When the speed limiting wheel 5 rotates in an overspeed mode, the main hammer head moves towards the outer edge of the ratchet wheel 11, the main hammer head drives the pawl 9 to move towards the ratchet wheel 11 through leverage by taking the hinged position of the main hammer 6 as a fulcrum until the pawl 9 is clamped with the ratchet wheel 11, and the speed limiting wheel 5 drives the ratchet wheel 11 and the main shaft 10 to rotate through the clamping of the pawl 9 and the ratchet wheel 11, so that the rotation resistance of the speed limiting wheel 5 is increased to realize speed reduction.
The speed limiting wheel 5 is further provided with an auxiliary pendulum bob 12, the main pendulum bob 6 and the auxiliary pendulum bob 12 are arranged around the center of the speed limiting wheel 5, the middle of the auxiliary pendulum bob 12 is hinged to the speed limiting wheel 5, one side of the hinged position of the auxiliary pendulum bob 12 is provided with an auxiliary hammer head, the other side of the hinged position of the auxiliary pendulum bob 12 is hinged to one side, close to the hammer head, of the main pendulum bob 6 through a connecting rod 13, two ends of the connecting rod 13 are Y-shaped fork openings, the auxiliary pendulum bob 12 and the main pendulum bob 6 are hinged to the Y-shaped fork openings at one end of the connecting rod 13 respectively, the Y-shaped fork openings are hinged to be compared with one side of the connecting rod 13 to be hinged, the stress can be effectively dispersed, and the damage to the hinged position caused by impact force generated when the motion state of the main pendulum bob 6 and the auxiliary pendulum bob 12 is changed is avoided. Through setting up main pendulum 6 and vice pendulum 12 around the speed wheel 5 center for the focus of speed wheel 5 is closer to the center of rotation of speed wheel 5, thereby lets speed wheel 5 more steady when rotating, radial atress when having reduced main shaft 10 and bearing rotation has increased the life of bearing.
When the lift car 1 normally descends, the steel wire rope 3 drives the guide wheel 4 and the speed limiting wheel 5 to rotate, centrifugal force generated by rotation of the main hammer head and the auxiliary hammer head along with the speed limiting wheel 5 is balanced with elastic force generated by the spring supporting rod 7 through a lever principle, the speed limiting wheel 5 is installed on the main shaft 10 through a bearing, so that the speed limiting wheel 5 can rotate relative to the main shaft 10, and the main shaft 10 and the ratchet wheel 11 do not rotate at the moment; when the lift car 1 descends at an overspeed, the speed limiting wheel 5 rotates at an overspeed to drive the main pendulum bob 6 and the auxiliary pendulum bob 12 to act, centrifugal force generated by the auxiliary hammer head is transmitted to the main pendulum bob 6 through the connecting rod 13, the centrifugal force generated by the main hammer head and the auxiliary hammer head is larger than the elastic force of the spring supporting rod 7 at the moment to push the pawl 9 to move towards the ratchet wheel 11 until the pawl is clamped, the ratchet wheel 11 and the main shaft 10 rotate along with the speed limiting wheel 5 to apply resistance to the speed limiting wheel 5, and meanwhile, after the speed limiting wheel 5 decelerates, the steel wire rope 3 does not change along with the movement speed of the lift car 1, so that the friction force between the steel wire rope 3 and the speed limiting wheel 5 is changed from rolling friction to sliding friction, the friction force is increased, and the purpose of decelerating when the lift car 1 descends at an overspeed is realized.
A shift lever 14 is further arranged beside the pawl 9 of the main swing shaft, one end of the shift lever 14 is hinged and fixed through a shift lever support 15, the other end of the shift lever 14 is connected with a push-pull electromagnet 16, the shift lever 14 is arranged close to the pawl 9, and the push-pull electromagnet 16 can drive the shift lever 14 to move so that the shift lever 14 pushes the pawl 9 to move towards the ratchet 11. The push-pull electromagnet 16 is connected with the shift lever 14, and the shift lever 14 can be actively triggered and pushed to move, so that the pawl 9 and the ratchet wheel 11 are actively clamped to realize active braking, and the shift lever 14 can abut against the pawl 9 after the pawl 9 and the ratchet wheel 11 are clamped to prevent the pawl 9 from falling off from the ratchet wheel 11, and the safety of elevator braking is improved.
The tail end of the shifting rod 14 is bent towards the pawl 9 by taking the connecting part of the shifting rod 14 and the push-pull electromagnet 16 as a center, and a shifting rod column 17 which is used for being in interference fit with the bent part of the shifting rod 14 is further fixed on the pawl 9. When the poking rod 14 needs to push the pawl 9, the tail end of the poking rod 14 firstly collides with a poking rod column 17 on the pawl 9, the pawl 9 is driven to move towards the ratchet wheel 11 through the poking rod column 17, the poking rod 14 can be arranged between the poking rod support 15 and the pawl 9 through the poking rod column 17, and the pawl can be pushed, so that the space needed by the matching action of the poking rod 14 and the pawl 9 is reduced.
And a limit switch 19 is also arranged on the guide bracket 8, and the limit switch 19 is close to the edge of the speed limiting wheel 5. When the speed limiting wheel 5 normally rotates, the main pendulum bob 6 and the auxiliary pendulum bob 12 do not deflect along with the rotation of the speed limiting wheel 5, and the limit switch 19 is not triggered; after the main pendulum bob 6 and the auxiliary pendulum bob 12 are overspeed-moved by the speed-limiting wheel 5, the hammers of the main pendulum bob 6 and the auxiliary pendulum bob 12 both shift towards the edge of the speed-limiting wheel 5, so that the rotating radius of the main hammer and the auxiliary hammer can be increased to enable the main hammer or the auxiliary hammer to contact the limit switch 19 so as to trigger the limit switch 19, and the elevator stops running.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, a schematic representation of terms does not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
In light of the foregoing description of the preferred embodiment of the present invention, many modifications and variations will be apparent to those skilled in the art without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.
Claims (6)
1. The utility model provides an elevator speed regulator, includes base and wire rope, its characterized in that: also comprises a guide wheel, a speed limiting wheel, a main pendulum bob and a spring supporting rod, wherein the guide wheel is fixed on the base through a guide bracket, the speed limiting wheel is connected with the base through a main shaft, the steel wire rope is wound on the guide wheel and the speed limiting wheel to drive the guide wheel and the speed limiting wheel to rotate, the middle part of the main pendulum is hinged at the edge of the speed limiting wheel, two sides of the hinged part of the main pendulum are respectively provided with a main hammer head and a pawl, one end of the spring supporting rod is hinged on one side of the main pendulum bob close to the pawl, the other end of the spring supporting rod is hinged on the speed limiting wheel, the center of the speed limiting wheel is arranged on a main shaft through a bearing, the main shaft is also provided with a ratchet wheel, the main shaft penetrates through the center of the ratchet wheel and is fixedly connected with the ratchet wheel, the pawl is arranged close to the outer edge of the ratchet wheel, and the speed limiting wheel rotates to drive the main pendulum bob to deflect so that the pawl moves towards the ratchet wheel.
2. An elevator governor according to claim 1, characterized in that: the speed limiting wheel is further provided with an auxiliary pendulum bob, the main pendulum bob and the auxiliary pendulum bob are arranged around the center of the speed limiting wheel, the middle part of the auxiliary pendulum bob is hinged to the speed limiting wheel, one side of the hinged part of the auxiliary pendulum bob is provided with an auxiliary hammer head, the other side of the hinged part of the auxiliary pendulum bob is hinged to one side, close to the hammer head, of the main pendulum bob through a connecting rod, two ends of the connecting rod are Y-shaped fork openings, and the auxiliary pendulum bob and the main pendulum bob are respectively hinged to the Y-shaped fork openings at one end of the connecting rod.
3. An elevator governor according to claim 2, wherein: the ratchet mechanism is characterized in that a shifting rod is further arranged beside the pawl of the main swing shaft, one end of the shifting rod is hinged and fixed through a shifting rod support, the other end of the shifting rod is connected with a push-pull electromagnet, the shifting rod is arranged close to the pawl, and the push-pull electromagnet can drive the shifting rod to move so that the shifting rod pushes the pawl to move towards the ratchet wheel.
4. An elevator governor according to claim 3, wherein: the tail end of the shifting rod is bent towards the pawl by taking the connecting position of the shifting rod and the push-pull electromagnet as a center, and a shifting rod column which is in interference fit with the bent position of the shifting rod is further fixed on the pawl.
5. An elevator governor according to claim 4, wherein: and rope blocking rods are further mounted on two sides of the speed limiting wheel.
6. An elevator governor according to claim 5, wherein: and the guide bracket is also provided with a limit switch, and the limit switch is close to the edge of the speed limiting wheel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210020492.5A CN114314240A (en) | 2022-01-10 | 2022-01-10 | Elevator speed regulator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210020492.5A CN114314240A (en) | 2022-01-10 | 2022-01-10 | Elevator speed regulator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114314240A true CN114314240A (en) | 2022-04-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210020492.5A Pending CN114314240A (en) | 2022-01-10 | 2022-01-10 | Elevator speed regulator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114314240A (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101301976A (en) * | 2008-07-07 | 2008-11-12 | 西子奥的斯电梯有限公司 | Integrated security device of elevator |
| CN202429824U (en) * | 2012-01-19 | 2012-09-12 | 宁波欧菱电梯配件有限公司 | Machine room-free speed limiter |
| CN103318723A (en) * | 2013-07-05 | 2013-09-25 | 宁波欧菱电梯配件有限公司 | Novel one-way limiter with movement test driving mechanism |
| CN203306869U (en) * | 2013-07-05 | 2013-11-27 | 宁波欧菱电梯配件有限公司 | Novel one-way speed limiter with movement testing and driving mechanism |
| CN204549711U (en) * | 2015-03-31 | 2015-08-12 | 西继迅达（许昌）电梯有限公司 | Ratchet can automatically reset single brake press plate two-way automatic anti-running car speed limiting system |
| CN205099142U (en) * | 2015-10-23 | 2016-03-23 | 西继迅达（许昌）电梯有限公司 | Swift current car overspeed governor is prevented in two -way automation with speed monitoring section |
| CN206720516U (en) * | 2017-05-25 | 2017-12-08 | 苏州尼隆电梯部件有限公司 | For there is the limiter of speed of machine room elevator |
| CN208593927U (en) * | 2018-08-07 | 2019-03-12 | 重庆科技学院 | A kind of elevator governor auxiliary device |
| CN210505142U (en) * | 2019-09-30 | 2020-05-12 | 陈述国 | Novel elevator speed limiter |
| CN111332899A (en) * | 2020-03-17 | 2020-06-26 | 维亚帝电梯(苏州)有限公司 | Safety brake device of elevator |
-
2022
- 2022-01-10 CN CN202210020492.5A patent/CN114314240A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101301976A (en) * | 2008-07-07 | 2008-11-12 | 西子奥的斯电梯有限公司 | Integrated security device of elevator |
| CN202429824U (en) * | 2012-01-19 | 2012-09-12 | 宁波欧菱电梯配件有限公司 | Machine room-free speed limiter |
| CN103318723A (en) * | 2013-07-05 | 2013-09-25 | 宁波欧菱电梯配件有限公司 | Novel one-way limiter with movement test driving mechanism |
| CN203306869U (en) * | 2013-07-05 | 2013-11-27 | 宁波欧菱电梯配件有限公司 | Novel one-way speed limiter with movement testing and driving mechanism |
| CN204549711U (en) * | 2015-03-31 | 2015-08-12 | 西继迅达（许昌）电梯有限公司 | Ratchet can automatically reset single brake press plate two-way automatic anti-running car speed limiting system |
| CN205099142U (en) * | 2015-10-23 | 2016-03-23 | 西继迅达（许昌）电梯有限公司 | Swift current car overspeed governor is prevented in two -way automation with speed monitoring section |
| CN206720516U (en) * | 2017-05-25 | 2017-12-08 | 苏州尼隆电梯部件有限公司 | For there is the limiter of speed of machine room elevator |
| CN208593927U (en) * | 2018-08-07 | 2019-03-12 | 重庆科技学院 | A kind of elevator governor auxiliary device |
| CN210505142U (en) * | 2019-09-30 | 2020-05-12 | 陈述国 | Novel elevator speed limiter |
| CN111332899A (en) * | 2020-03-17 | 2020-06-26 | 维亚帝电梯(苏州)有限公司 | Safety brake device of elevator |
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