CN112320539A - Low-power double-locking lifting track system and method - Google Patents
Low-power double-locking lifting track system and method Download PDFInfo
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- CN112320539A CN112320539A CN202011309471.2A CN202011309471A CN112320539A CN 112320539 A CN112320539 A CN 112320539A CN 202011309471 A CN202011309471 A CN 202011309471A CN 112320539 A CN112320539 A CN 112320539A
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- lead screw
- power double
- low
- fixed
- trapezoidal
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B11/00—Main component parts of lifts in, or associated with, buildings or other structures
- B66B11/04—Driving gear ; Details thereof, e.g. seals
- B66B11/043—Driving gear ; Details thereof, e.g. seals actuated by rotating motor; Details, e.g. ventilation
- B66B11/0446—Driving gear ; Details thereof, e.g. seals actuated by rotating motor; Details, e.g. ventilation with screw-nut or worm-screw gear
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B11/00—Main component parts of lifts in, or associated with, buildings or other structures
- B66B11/02—Cages, i.e. cars
- B66B11/026—Attenuation system for shocks, vibrations, imbalance, e.g. passengers on the same side
- B66B11/0293—Suspension locking or inhibiting means to avoid movement when car is stopped at a floor
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B7/00—Other common features of elevators
- B66B7/02—Guideways; Guides
- B66B7/022—Guideways; Guides with a special shape
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B9/00—Kinds or types of lifts in, or associated with, buildings or other structures
- B66B9/02—Kinds or types of lifts in, or associated with, buildings or other structures actuated mechanically otherwise than by rope or cable
- B66B9/025—Kinds or types of lifts in, or associated with, buildings or other structures actuated mechanically otherwise than by rope or cable by screw-nut drives
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Structural Engineering (AREA)
- Civil Engineering (AREA)
- Automation & Control Theory (AREA)
- Transmission Devices (AREA)
- Types And Forms Of Lifts (AREA)
Abstract
The invention discloses a locking method of a low-power double-locking lifting track system, wherein the low-power double-locking lifting track system comprises the following steps: the motor device is fixed on the bracket and comprises a motor with a brake, a speed reducer and a coupler which are connected in sequence; the trapezoidal lead screw is fixedly connected with the motor device and rotates under the power provided by the motor device; the two screw rod nuts are arranged on the trapezoidal screw rod in opposite thread directions, and move on the trapezoidal screw rod in opposite directions under the rotation of the trapezoidal screw rod; two levers are provided and respectively comprise a power arm, a resistance arm and fulcrums, each power arm is fixed with a corresponding screw nut, and the two fulcrums are fixed on the strip-shaped holes of the bracket; a friction plate is fixed on each resistance arm, and the two lead screw nuts move in opposite directions to drive the friction plates on the two resistance arms to be clamped and locked or opened. The invention has high automation degree, low labor intensity and reliable locking.
Description
Technical Field
The invention relates to a low-power double-locking lifting track system and a method.
Background
The space launching tower is provided with a lifting platform system with the height capable of lifting in order to meet the work of butt joint, testing and the like of all subsets of space vehicles such as a carrier rocket, a satellite, an airship and the like.
Referring to fig. 1 to 4, a current lifting platform system mainly includes a track system 2 and a working platform 4, the track system 2 is installed on a fixed base 1, the working platform 4 can lift along a track groove 25 of the track system 2, specifically, a guide wheel 3 is fixed on the working platform 4, and the working platform 4 moves on the track groove 25 through the guide wheel 3 to perform guided lifting.
Referring to fig. 2 and 3, the current track system 2 mainly comprises a steel plate 21, a profile steel channel 22 and a vertical plate 23; the steel plate 21 is generally two upper and lower, and steel plate 21 welds section steel channel 22 and fixes, and riser 23 welds on section steel channel 22, has track groove 25 on section steel channel 22. The vertical plate 23 is provided with a long hole 24 according to specifications, and the long hole 24 is used for lifting and locking. Referring to fig. 3, the guide wheel 3 is guided up and down along the rail groove 25 of the profile steel channel 22.
Referring to fig. 4, taking two long holes on the vertical plate 23 as an example, a first long hole 26 and a second long hole 27 are processed on the vertical plate 23 of the rail of the lifting platform system, and the oil cylinder 5 is installed inside. The lower end of the cylinder body of the oil cylinder 5 is connected with a working platform hinged support 41 through a bolt 7, and the working platform hinged support 41 is welded with the working platform 4. The working platform hinge base 41 is provided with a pin shaft hole 42, the pin shaft 6 manually passes through the pin shaft hole 42 and the second long hole 27 on the vertical plate 23, and the working platform 4 is fixed at the height position of the second long hole 27.
When the platform needs to be lifted, the piston rod 51 of the oil cylinder 5 extends out to reach the same height with the first long hole 26, the pin shaft 6 is manually inserted, then the piston rod 51 of the oil cylinder 5 is retracted, after the pin shaft 6 at the second long hole 27 is loosened, the pin shaft 6 is pulled out, the piston rod 51 of the oil cylinder 5 is continuously retracted, and as the piston rod 51 of the oil cylinder 5 is fixed at the first long hole 26, the cylinder body of the oil cylinder 5 drives the working platform 4 to move upwards, and the specified position can be reached.
The descending process is reversed.
The disadvantages of this lift platform system are:
(1) the track system is complex, and the workload of welding the vertical plate and the processing hole is large;
(2) the manual bolt shaft is inserted in the lifting process, so that the operation is complicated and the workload is large;
(3) the vertical plate can not be stopped and moved along with the stop and can be stopped at any position under the sectional influence of the long holes on the vertical plate.
Disclosure of Invention
The invention provides a low-power double-locking lifting track system and a low-power double-locking lifting track method, aiming at the defects in the prior art.
Specifically, the inventor firstly improves the mode of matching and fixing the bolt and the pin hole of the vertical plate, and proposes to use a brand-new low-power double-locking lifting track system, which has high automation degree, low labor intensity and reliable locking.
Meanwhile, a low-power double-locking lifting track method of the low-power double-locking lifting track system is provided.
The adopted technical scheme is as follows:
in a first aspect, the present invention provides a low power double locking lifting rail system, comprising a low power double locking mechanism, the low power double locking mechanism comprising:
the motor device is fixed on the support and comprises a motor with a brake, a speed reducer and a coupler which are sequentially connected, and the motor device is used for providing power;
the trapezoidal lead screw is fixedly connected with the motor device and rotates under the power provided by the motor device;
two lead screw nuts, which are installed on the trapezoidal lead screw in opposite thread directions, and move on the trapezoidal lead screw in opposite directions under the rotation of the trapezoidal lead screw;
two levers are provided and respectively comprise power arms, resistance arms and fulcrums, each power arm is fixed with a corresponding screw rod nut, and the two fulcrums are fixed on the strip-shaped holes of the support; and a friction plate is fixed on each resistance arm, and the two lead screw nuts move in opposite directions to drive the friction plates on the two resistance arms to be clamped and locked or opened.
Furthermore, two bearings are fixed on the trapezoidal lead screw at intervals, and the moving range of the two lead screw nuts is limited between the two bearings.
Furthermore, the pivot is formed by inserting a pin shaft into the through hole of the lever and the strip-shaped hole of the support, the pin shaft can move on the strip-shaped hole, and the lead screw nut is allowed to move on the trapezoidal lead screw.
Further, the power arm is fixedly connected with the lead screw nut through a bolt.
Further, the lifting track mechanism is provided with a track extending out, and the track can be clamped and locked or loosened by friction sheets on the two resistance arm clamps.
In a second aspect, the present invention provides a low power double locking lifting rail method for the low power double locking lifting rail system, which includes the following steps: the motor brake is opened, the motor rotates forwards, the trapezoidal screw rod is driven to rotate through the speed reducer and the coupler, the two screw rod nuts are driven to be away from each other, the lever is driven to rotate, and therefore the friction plates on the two resistance arms are driven to be clamped and locked.
The invention has the beneficial effects that:
after locking, the motor brakes by a brake, and meanwhile, the lead angle of the trapezoidal lead screw is generally smaller than the static friction angle and has a self-locking function, so that a lead screw nut cannot be loosened, double locking is realized, and safety is ensured.
In addition, the design of the lever and the design of the speed reducer can realize the effect of generating high friction force by a low-power motor, and the cost is low and the energy consumption is low.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.
Fig. 1 is a schematic structural diagram of a conventional lift platform system.
Fig. 2 is a schematic perspective view of a conventional track system.
Fig. 3 is a schematic top view of a track system with guide wheels.
Fig. 4 is a schematic structural diagram of a lifting process of a current lifting platform system.
Fig. 5 is a schematic structural diagram of a low-power double-locking lifting rail system according to embodiment 1.
Fig. 6 is a schematic top view of a low-power double-locking lifting rail system according to embodiment 2.
In FIGS. 1-4, 1-the anchor base; 2-a rail system; 3-a guide wheel; 4-a working platform; 21-steel plate; 22-section steel channel; 23-standing a plate; 24-long holes; 25-a track groove; 6-a pin shaft; 7-a bolt; 26-a first slot; 27-a second elongated hole; 5-oil cylinder; 51-a piston rod; 41-working platform hinged support.
In fig. 5-6, 101-the stent; 102-a motor; 103-a speed reducer; 104-a coupling; 105-a bearing; 106-trapezoidal lead screw; 107-lead screw nut; 108-a power arm; 109-a lever; 110-pivot point; 111-friction plate; 112-track; 113-resistance arm.
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 preferred embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1
Referring to fig. 5, a low power double lock lifting rail system includes a low power double lock mechanism including a motor arrangement, a trapezoidal lead screw 106, a lead screw nut 107 and a lever 109.
The motor device is fixed on the bracket 101, and the bracket 101 can be made of a steel plate. The motor 102 device comprises a motor 102, a speed reducer 103 and a coupling 104, and the tail end of the motor 102 is provided with a brake. The motor 102, the speed reducer 103 and the coupling 104 are connected in sequence. The motor device is used for providing power.
And a trapezoidal lead screw 106 fixedly connected with the motor device, specifically, coaxially and fixedly connected with the coupling 104. The trapezoidal lead screw 106 rotates under power provided by the motor 102.
And two lead screw nuts 107 which are oppositely threaded are mounted on the trapezoidal lead screw 106, and under the rotation of the trapezoidal lead screw 106, the two lead screw nuts 107 oppositely move on the trapezoidal lead screw 106.
The two levers 109 respectively comprise a power arm 108, a resistance arm 113 and a fulcrum 110, each power arm 108 is fixed with a corresponding screw nut 107, and specifically, the power arm 108 and the screw nut 107 can be fixedly connected through bolts. The two supporting points 110 are fixed on the strip-shaped holes of the bracket 101; a friction plate 111 is fixed on each resistance arm 113, and the two lead screw nuts 107 move in opposite directions to drive the friction plates 111 on the two resistance arms 113 to be clamped and locked or opened. Specifically, the fulcrum 110 is a fulcrum 110 formed on a through hole of the lever 109 and a strip-shaped hole of the bracket 101 through a pin shaft, and the pin shaft can move on the strip-shaped hole, allowing the lead screw nut 107 to move on the trapezoidal lead screw 106. The strip-shaped holes adjust the distance change between the screw nut and the fulcrum 110 in the moving process.
Further, two bearings 105 are fixed on the trapezoidal lead screw 106 at intervals, and the moving range of the two lead screw nuts 107 is limited between the two bearings 105.
The trapezoidal lead screw 106 generally has a self-locking function. Generally, the lead angle of the trapezoidal lead screw 106 is smaller than the static friction angle, so that the lead screw has a self-locking function. The brake and the motor 102 can be electrically connected with a controller, so that the controller can control the motor 102 and the brake.
The low-power double-locking lifting track method of the low-power double-locking lifting track system comprises the following steps: the brake of the motor 102 is turned on, the motor 102 rotates forwards, the trapezoidal lead screw 106 is driven to rotate through the speed reducer 103 and the coupler 104, the two lead screw nuts are driven to be away from each other, the lever 109 is driven to rotate, and therefore the friction plates 111 on the two resistance arms 113 are driven to be clamped and locked, namely the first locking. Meanwhile, the trapezoidal lead screw 106 has a self-locking function, so that the lead screw nut cannot be loosened, which is the second locking. Thus, double locking is realized to ensure safety.
In addition, the design of the lever 109 and the design of the speed reducer 103 can realize the effect of generating high friction force by the low-power motor 102, and the low-power motor has low cost and low energy consumption.
The unlocking method of the low-power double-locking lifting track system is the reverse process: the brake of the motor 102 is opened, the motor 102 rotates reversely, the trapezoidal screw 106 is driven to rotate through the speed reducer 103 and the coupler 104, the two screw nuts are driven to approach each other, the lever 109 is driven to rotate, and therefore the friction plates 111 on the two resistance arms 113 are driven to be loosened, and locking is released.
Example 2
Referring to fig. 6, a low power double locking lifting rail system of the present embodiment includes the low power double locking lifting rail system of embodiment 1; the lifting rail mechanism is provided with a rail 112 extending therefrom, and the rail 112 can be clamped and locked or released by friction plates 111 on two resistance arms 113.
The extended track 112 may be disposed on one side of the lifting track mechanism, or may be disposed on both sides of the lifting track mechanism.
The track 112 is a completely new track design. Compared with the current track system, the vertical plate of the current track system is cancelled, one section of the steel plate of the section steel channel is extended, and the extended part is the track 112. The friction plate 111 is braked by the rail 112 in cooperation with the friction plate.
Wherein a plurality of low power double lock mechanisms may be provided along the length of the rail 112 and used simultaneously to increase the locking force and the safety factor.
The invention changes the prior pin shaft type locking into friction type locking and then realizes the lifting by utilizing the basic principle of telescopic lifting of the oil cylinder. The oil cylinder stretches and retracts to drive the low-power double-locking lifting track system and the working platform to any position, the low-power double-locking lifting track system and the working platform keep basically synchronous height distance, and then the working platform can be locked on the track through the low-power double-locking lifting track system.
The low-power double-locking lifting track system has the following advantages:
(1) the track system is simplified, and the processing and manufacturing difficulty and cost are reduced; the workload of welding the vertical plate and machining the hole is not needed.
(2) The locking device has the advantages of high automation degree and low labor intensity, and a manual bolt shaft is not needed in the lifting process.
(3) The motor brake is used with the trapezoidal lead screw in a matched mode, and locking reliability is high. The vertical plate is not needed to be used, and the sectional influence of the long hole on the vertical plate is avoided. The following oil cylinder can be stretched and lifted to stop and move along with the following, and the oil cylinder can be stopped at any position.
(4) The friction plate area, lever proportion and other parameters can be adjusted, the locking friction force can be adjusted in a large range, and the system popularization adaptability is strong.
The above-listed detailed description is only a specific description of a possible embodiment of the present invention, and they are not intended to limit the scope of the present invention, and equivalent embodiments or modifications made without departing from the technical spirit of the present invention should be included in the scope of the present invention.
Claims (6)
1. A low power double lock lifting rail system comprising a low power double lock mechanism, the low power double lock mechanism comprising:
the motor device is fixed on the support and comprises a motor with a brake, a speed reducer and a coupler which are sequentially connected, and the motor device is used for providing power;
the trapezoidal lead screw is fixedly connected with the motor device and rotates under the power provided by the motor device;
two lead screw nuts, which are installed on the trapezoidal lead screw in opposite thread directions, and move on the trapezoidal lead screw in opposite directions under the rotation of the trapezoidal lead screw;
two levers are provided and respectively comprise power arms, resistance arms and fulcrums, each power arm is fixed with a corresponding screw rod nut, and the two fulcrums are fixed on the strip-shaped holes of the support; and a friction plate is fixed on each resistance arm, and the two lead screw nuts move in opposite directions to drive the friction plates on the two resistance arms to be clamped and locked or opened.
2. The low power double lock lifting rail system of claim 1, wherein two bearings are fixed to the trapezoidal lead screw at intervals, and the range of movement of the two lead screw nuts is limited between the two bearings.
3. The low-power double-locking lifting rail system according to claim 1, wherein the fulcrum is a fulcrum formed by inserting a pin shaft into a through hole of the lever and a strip-shaped hole of the bracket, the pin shaft being movable on the strip-shaped hole, allowing the lead screw nut to be movable on the trapezoidal lead screw.
4. The low power double lock lifting rail system of claim 1, wherein the power arm and the lead screw nut are fixedly connected by a bolt.
5. A low power double lock lifting rail system according to any of claims 1 to 4, wherein the lifting rail mechanism is provided with an extended rail which can be locked or unlocked by the friction plate clamp on the two resistance arm clamps.
6. A low power double locked lifting rail method of a low power double locked lifting rail system according to any of claims 1-4, characterized in that it comprises the steps of: the motor brake is opened, the motor rotates forwards, the trapezoidal screw rod is driven to rotate through the speed reducer and the coupler, the two screw rod nuts are driven to be away from each other, the lever is driven to rotate, and therefore the friction plates on the two resistance arms are driven to be clamped and locked.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011309471.2A CN112320539B (en) | 2020-11-20 | 2020-11-20 | Low-power double-locking lifting track system and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011309471.2A CN112320539B (en) | 2020-11-20 | 2020-11-20 | Low-power double-locking lifting track system and method |
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| Publication Number | Publication Date |
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| CN112320539A true CN112320539A (en) | 2021-02-05 |
| CN112320539B CN112320539B (en) | 2023-10-03 |
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| CN202011309471.2A Active CN112320539B (en) | 2020-11-20 | 2020-11-20 | Low-power double-locking lifting track system and method |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4664230A (en) * | 1984-03-23 | 1987-05-12 | Olsen Lawrence O | Elevator |
| EP0767134A2 (en) * | 1995-10-04 | 1997-04-09 | WITTUR AUFZUGTEILE GmbH & Co. | Elevator system and its building method |
| CN205114770U (en) * | 2015-11-06 | 2016-03-30 | 苏州亨通智能精工装备有限公司 | Heavily loaded companion ladder of multistage automation |
| CN106315343A (en) * | 2015-07-01 | 2017-01-11 | 天津市国泰电梯部件有限公司 | Rapid connector for elevator guide rail section |
| CN106629287A (en) * | 2016-12-27 | 2017-05-10 | 廖忠民 | On-track maintenance supporting device for gear and rack lifting equipment |
| CN110817645A (en) * | 2019-10-25 | 2020-02-21 | 湖南大举信息科技有限公司 | Elevator brake system |
| CN213622818U (en) * | 2020-11-20 | 2021-07-06 | 中国人民解放军63921部队 | Low-power double-locking lifting track system |
-
2020
- 2020-11-20 CN CN202011309471.2A patent/CN112320539B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4664230A (en) * | 1984-03-23 | 1987-05-12 | Olsen Lawrence O | Elevator |
| EP0767134A2 (en) * | 1995-10-04 | 1997-04-09 | WITTUR AUFZUGTEILE GmbH & Co. | Elevator system and its building method |
| CN106315343A (en) * | 2015-07-01 | 2017-01-11 | 天津市国泰电梯部件有限公司 | Rapid connector for elevator guide rail section |
| CN205114770U (en) * | 2015-11-06 | 2016-03-30 | 苏州亨通智能精工装备有限公司 | Heavily loaded companion ladder of multistage automation |
| CN106629287A (en) * | 2016-12-27 | 2017-05-10 | 廖忠民 | On-track maintenance supporting device for gear and rack lifting equipment |
| CN110817645A (en) * | 2019-10-25 | 2020-02-21 | 湖南大举信息科技有限公司 | Elevator brake system |
| CN213622818U (en) * | 2020-11-20 | 2021-07-06 | 中国人民解放军63921部队 | Low-power double-locking lifting track system |
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| Publication number | Publication date |
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| CN112320539B (en) | 2023-10-03 |
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