CN112723085A - Elevator running acceleration detection and protection device - Google Patents
Elevator running acceleration detection and protection device Download PDFInfo
- Publication number
- CN112723085A CN112723085A CN202011588337.0A CN202011588337A CN112723085A CN 112723085 A CN112723085 A CN 112723085A CN 202011588337 A CN202011588337 A CN 202011588337A CN 112723085 A CN112723085 A CN 112723085A
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- CN
- China
- Prior art keywords
- elevator
- rod
- adjusting rod
- component system
- brake unit
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- 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.)
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
- B66B5/02—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions
- B66B5/04—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions for detecting excessive speed
- B66B5/044—Mechanical overspeed governors
- B66B5/046—Mechanical overspeed governors of the pendulum or rocker arm type
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
- B66B5/02—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions
- B66B5/16—Braking or catch devices operating between cars, cages, or skips and fixed guide elements or surfaces in hoistway or well
- B66B5/18—Braking or catch devices operating between cars, cages, or skips and fixed guide elements or surfaces in hoistway or well and applying frictional retarding forces
Abstract
The invention discloses an elevator running acceleration detection and protection device, which comprises a guide rail arranged in a hoistway, an elevator component system, a brake unit, a linkage adjusting rod, an adjusting weight and an action switch connected with an elevator electric loop, wherein the brake unit is arranged on the elevator component system, a running gap is reserved between the brake unit and the guide rail, the tail end of the linkage adjusting rod is rotatably arranged on the elevator component system and forms a rotating fulcrum, the action switch is arranged above the tail end of the linkage adjusting rod and can be contacted with the linkage adjusting rod, the starting end of the linkage adjusting rod is connected with a follow-up rod, a connecting piece is arranged below the brake unit, a fixing piece is arranged on the elevator component system and corresponds to the connecting piece in position, one end of the follow-up rod is connected with a pull rod, the elevator running acceleration detection and protection device has great advantages in the aspects of stability, accuracy, and can also be used as the added protection of old elevators.
Description
Technical Field
The invention relates to the technical field of elevator manufacturing, in particular to an elevator running acceleration detection and protection device.
Background
At present, in the elevator industry, when the speed control and detection during the operation of the elevator are carried out, only the maximum operation speed of the elevator is controlled and detected, namely the operation speed of the elevator is greater than the set maximum operation speed (namely the rated operation speed) of the elevator, an elevator control system detects the speed abnormality and controls the operation control of the elevator so as to reduce and keep the safe operation of the elevator within the rated speed range, and the control is carried out on electrical programming. Under the condition, if the running speed of the elevator is continuously higher and reaches the speed of a specified proportion, the elevator running speed safety detection and control unit, namely the speed limiter, is triggered to drive the elevator braking unit, namely the safety tongs, to brake the elevator so as to protect the safety of the elevator in transportation.
The above background of speed control in elevator operation is only directed to the operating speed of the elevator. The invention is directed to a device for checking and protecting acceleration during starting, decelerating and braking of an elevator in operation. During the running process of the elevator, the acceleration (or deceleration) is also a very key transportation quality index and is also an important elevator safety transportation index. If the elevator is in operation, when acceleration (or deceleration) is too big, gently can let the passenger in the elevator car feel uncomfortable-comfort level in the quality of taking advantage of and transporting, under the serious condition, the elevator can lose normal safe operation balance, breaks the balance point of elevator tractive ability, causes serious safety risk: such as flushing the top, squatting the bottom, etc.
In the elevator industry, the acceleration during the operation of the elevator is detected by collecting data by using electrical elements such as an acceleration sensor and the like and controlling the acceleration in an electrical programming mode.
Disclosure of Invention
The purpose of the invention is as follows: in order to solve the defects in the background technology, the invention discloses an elevator running acceleration detection and protection device.
The technical scheme is as follows: an elevator running acceleration detection and protection device comprises a guide rail, an elevator component system, a brake unit, a linkage adjusting rod, an adjusting weight and an action switch connected with an elevator electric loop, wherein the guide rail, the elevator component system, the brake unit, the linkage adjusting rod, the adjusting weight and the action switch are arranged in a well, the brake unit is arranged on the elevator component system, a running gap is reserved between the brake unit and the guide rail, the tail end of the linkage adjusting rod is rotatably arranged on the elevator component system and forms a rotating fulcrum, the action switch is arranged above the tail end of the linkage adjusting rod and can be contacted with the linkage adjusting rod, the starting end of the linkage adjusting rod is connected with a follow-up rod, a connecting piece is arranged below the brake unit, a fixing piece is arranged on the elevator component system and corresponds to the position of the connecting piece, one end of the follow-up rod is connected with a, the adjusting weight block is adjustably arranged on the linkage adjusting rod.
As a preferred form of the invention the elevator component system is an elevator car system/counterweight system/compensation system.
In a preferred embodiment of the invention, the connecting element is designed in particular as an L-shaped structure.
In a preferred embodiment of the present invention, the fixing member is an angle steel member.
As a preferable mode of the present invention, the pull rod is provided with guide nuts at both upper and lower sides of the connecting member and at the bottom of the fixing member.
As a preferable mode of the present invention, an adjusting groove is formed on the linkage adjusting lever, a supporting rod is installed above the adjusting weight, and the supporting rod is connected with the adjusting groove through a bolt.
The invention realizes the following beneficial effects:
1. the invention can check the acceleration or deceleration of the elevator and carry out the electric drive braking protection.
2. The invention can check the acceleration or deceleration of the elevator and protect the mechanical brake.
3. The detection device is of a pure mechanical physical type, has great advantages in the aspects of stability, accuracy, applicability and the like, has a simple structure, is low in cost and strong in popularization, can be widely used in new elevators, and can also be used for added protection of old elevators.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the disclosure and together with the description, serve to explain the principles of the disclosure.
Fig. 1 is a schematic view of the overall structure disclosed in the present invention.
Fig. 2 is a schematic diagram of the protection of the electrical switch disclosed in the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
Examples
Referring to fig. 1-2, an elevator operation acceleration detecting and protecting apparatus includes a guide rail 80 disposed in a hoistway, an elevator component system 10, a brake unit 20 mounted on the elevator component system with an operation gap from the guide rail, a linkage adjusting lever 70, an adjusting weight 90, and an operation switch 60 connected to an electrical circuit of an elevator;
the tail end of the linkage adjusting rod is rotatably arranged on an elevator component system and is provided with a rotating fulcrum A, the action switch is arranged above the tail end of the linkage adjusting rod and can be contacted with the linkage adjusting rod, and when the running acceleration of the elevator is overlarge, the linkage adjusting rod keeps the original state and rotates around the rotating fulcrum under the action of the physical inertia of the adjusting weight, so that the action switch is pressed, the action switch is disconnected, an electric driving loop of the elevator is cut off, and the elevator loses running external power to decelerate and stop;
the starting end of the linkage adjusting rod is connected with a follower rod 50, so that the freedom degree of the device in all directions of rotation is released; meanwhile, when the device acts, the up-and-down operation at the position is changed into full flexible rotation;
a connecting piece 100 is arranged below the brake unit, a fixing piece 110 is arranged on the elevator component system and corresponds to the connecting piece in position, one end of the follower rod is connected with a pull rod 30, the other end of the pull rod penetrates through the connecting piece and the fixing piece, and an adjusting spring 40 is arranged between the connecting piece and the fixing piece; the adjusting spring can adjust the position of the connecting piece of the braking unit and can preset the triggering acceleration value at the same time so as to ensure that the elevator is not triggered to stop running within the expected acceleration range.
The adjusting weight block is adjustably arranged on the linkage adjusting rod, so that the position can be freely adjusted, and the device is suitable for setting various acceleration values.
In this embodiment, the elevator component system is an elevator car system/counterweight system/compensation system, which means that the braking unit can be installed in any one of the elevator car system, counterweight system or compensation system, and during normal operation of the elevator, there is a safe operation gap between the braking unit and the guide rail to ensure that the braking unit is not accidentally triggered to stop the operation of the elevator during normal operation of the elevator, when the acceleration during operation of the elevator exceeds the expected set value, the linkage adjusting rod keeps the original state and rotates around the rotation fulcrum under the action of the physical inertia of the adjusting weight, and simultaneously drives the follower rod and the pull rod to move downwards, the spring is compressed, the braking sliding element in the braking unit is driven to move downwards to clamp the guide rail to stop the elevator car system or counterweight system or compensation system, and stop the elevator, the safety of passengers in the elevator is guaranteed.
In this embodiment, the connecting element is designed in an L-shaped configuration, and the L-shaped configuration is provided with a hole for the pull rod to pass through.
In this embodiment, the fixing member is specifically an angle steel member, and the angle steel member is also provided with a hole for the pull rod to pass through.
In this embodiment, the guide nuts 150 are installed on the upper and lower sides of the connecting member and the bottom of the fixing member.
In this embodiment, the adjusting groove 120 is formed on the linkage adjusting rod, the support rod 140 is installed above the adjusting weight, and the support rod is connected with the adjusting groove through the bolt 130, so that the adjusting weight can be conveniently adjusted freely.
The above embodiments are merely illustrative of the technical ideas and features of the present invention, and are intended to enable those skilled in the art to understand the contents of the present invention and implement the present invention, and not to limit the scope of the present invention. All equivalent changes or modifications made according to the spirit of the present invention should be covered within the protection scope of the present invention.
Claims (6)
1. The elevator running acceleration detection and protection device is characterized by comprising a guide rail, an elevator component system, a brake unit, a linkage adjusting rod, an adjusting weight and an action switch, wherein the guide rail is arranged in a hoistway, the brake unit is arranged on the elevator component system, a running gap is reserved between the brake unit and the guide rail, the tail end of the linkage adjusting rod is rotatably arranged on the elevator component system and forms a rotating fulcrum, the action switch is arranged above the tail end of the linkage adjusting rod and can be contacted with the linkage adjusting rod, the starting end of the linkage adjusting rod is connected with a follow-up rod, a connecting piece is arranged below the brake unit, a fixing piece is arranged on the elevator component system and corresponds to the connecting piece in position, one end of the follow-up rod is connected with a pull rod, and the other end of the pull rod penetrates through the connecting piece and the, the pull rod is provided with an adjusting spring between the connecting piece and the fixing piece, and the adjusting weight block is adjustably arranged on the linkage adjusting rod.
2. The elevator running acceleration detecting and protecting device according to claim 1, characterized in that the elevator component system is an elevator car system/counterweight system/compensating system.
3. The elevator running acceleration detecting and protecting device according to claim 1, characterized in that the connecting member is designed as an L-shaped structure.
4. The elevator running acceleration detecting and protecting device according to claim 1, characterized in that the fixing member is an angle steel member.
5. The elevator running acceleration detecting and protecting device according to claim 1, wherein the draw bar is provided with guide nuts at both upper and lower sides of the connecting member and at the bottom of the fixing member.
6. The elevator running acceleration detecting and protecting device according to claim 1, wherein the adjusting groove is formed on the linkage adjusting rod, a supporting rod is installed above the adjusting weight, and the supporting rod is connected with the adjusting groove through a bolt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011588337.0A CN112723085A (en) | 2020-12-28 | 2020-12-28 | Elevator running acceleration detection and protection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011588337.0A CN112723085A (en) | 2020-12-28 | 2020-12-28 | Elevator running acceleration detection and protection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112723085A true CN112723085A (en) | 2021-04-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011588337.0A Pending CN112723085A (en) | 2020-12-28 | 2020-12-28 | Elevator running acceleration detection and protection device |
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| Country | Link |
|---|---|
| CN (1) | CN112723085A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11261056B2 (en) | 2018-12-20 | 2022-03-01 | Otis Elevator Company | Elevator safety actuator systems |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008007289A (en) * | 2006-06-30 | 2008-01-17 | Hitachi Ltd | Safety device of elevator |
| CN202529673U (en) * | 2012-04-26 | 2012-11-14 | 者宸旭 | Gravity eccentric shaft type safety tongs |
| CN104444708A (en) * | 2014-11-18 | 2015-03-25 | 怡达快速电梯有限公司 | Follow-up tensioning method and device for elevator compensation rope |
| CN104724565A (en) * | 2013-12-23 | 2015-06-24 | 上海三菱电梯有限公司 | Elevator brake device with trigger mechanism |
| CN208561383U (en) * | 2018-07-05 | 2019-03-01 | 安川双菱电梯有限公司 | Elevator with weightless ensuring equipment |
-
2020
- 2020-12-28 CN CN202011588337.0A patent/CN112723085A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008007289A (en) * | 2006-06-30 | 2008-01-17 | Hitachi Ltd | Safety device of elevator |
| CN202529673U (en) * | 2012-04-26 | 2012-11-14 | 者宸旭 | Gravity eccentric shaft type safety tongs |
| CN104724565A (en) * | 2013-12-23 | 2015-06-24 | 上海三菱电梯有限公司 | Elevator brake device with trigger mechanism |
| CN104444708A (en) * | 2014-11-18 | 2015-03-25 | 怡达快速电梯有限公司 | Follow-up tensioning method and device for elevator compensation rope |
| CN208561383U (en) * | 2018-07-05 | 2019-03-01 | 安川双菱电梯有限公司 | Elevator with weightless ensuring equipment |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11261056B2 (en) | 2018-12-20 | 2022-03-01 | Otis Elevator Company | Elevator safety actuator systems |
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