CN114835050A - Energy-saving self-speed-adjusting door type elevator - Google Patents
Energy-saving self-speed-adjusting door type elevator Download PDFInfo
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- CN114835050A CN114835050A CN202210439865.2A CN202210439865A CN114835050A CN 114835050 A CN114835050 A CN 114835050A CN 202210439865 A CN202210439865 A CN 202210439865A CN 114835050 A CN114835050 A CN 114835050A
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- 230000007246 mechanism Effects 0.000 claims abstract description 18
- 230000001105 regulatory effect Effects 0.000 claims abstract description 14
- 230000000149 penetrating effect Effects 0.000 claims abstract description 9
- 239000007788 liquid Substances 0.000 claims description 16
- 239000010720 hydraulic oil Substances 0.000 claims description 8
- 239000002775 capsule Substances 0.000 claims description 5
- 238000007789 sealing Methods 0.000 claims description 5
- 230000008844 regulatory mechanism Effects 0.000 claims description 2
- 230000003028 elevating effect Effects 0.000 abstract 2
- 239000000463 material Substances 0.000 description 16
- 230000000875 corresponding effect Effects 0.000 description 15
- 230000001737 promoting effect Effects 0.000 description 8
- 230000005484 gravity Effects 0.000 description 6
- 230000002596 correlated effect Effects 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 230000008569 process Effects 0.000 description 4
- 238000005381 potential energy Methods 0.000 description 3
- 230000032258 transport Effects 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 239000004566 building material Substances 0.000 description 2
- 238000004891 communication Methods 0.000 description 2
- 230000001276 controlling effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 241000220317 Rosa Species 0.000 description 1
- 239000002199 base oil Substances 0.000 description 1
- 239000011449 brick Substances 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000012634 fragment Substances 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
- B66F7/00—Lifting frames, e.g. for lifting vehicles; Platform lifts
- B66F7/02—Lifting frames, e.g. for lifting vehicles; Platform lifts with platforms suspended from ropes, cables, or chains or screws and movable along pillars
- B66F7/025—Lifting frames, e.g. for lifting vehicles; Platform lifts with platforms suspended from ropes, cables, or chains or screws and movable along pillars screw operated
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
- B66F7/00—Lifting frames, e.g. for lifting vehicles; Platform lifts
- B66F7/28—Constructional details, e.g. end stops, pivoting supporting members, sliding runners adjustable to load dimensions
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/02—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
- F16F15/04—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means
- F16F15/08—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means with rubber springs ; with springs made of rubber and metal
- F16F15/085—Use of both rubber and metal springs
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B50/00—Energy efficient technologies in elevators, escalators and moving walkways, e.g. energy saving or recuperation technologies
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
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- Structural Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
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Abstract
The invention discloses an energy-saving self-speed-regulating door type elevator which comprises a base, wherein four first cavities are formed in the base, the upper surface of the base is fixedly connected with two first plates, two first sliding blocks are respectively connected in the two first plates in a sliding manner through first sliding grooves, two opposite first sliding blocks are jointly and fixedly connected with an elevating platform, and a speed regulating mechanism for regulating the elevating speed is arranged in each first cavity; the speed regulating mechanism comprises four first rod pieces, the first rod pieces are connected with the base in a penetrating and rotating mode through bearings, the first rod pieces are matched with the corresponding first sliding blocks in a penetrating mode, and one end, located in the first cavity, of each first rod piece is fixedly connected with a rotating column. Has the advantages that: the invention can automatically adjust the lifting speed, avoid the influence of over-fast lifting on stability, influence the efficiency of over-slow lifting, save more energy, simultaneously can continuously lift, greatly improve the lifting efficiency and has higher safety.
Description
Technical Field
The invention relates to the technical field of elevators, in particular to an energy-saving self-speed-regulating door type elevator.
Background
In the building process of building, often need to transport materials such as cement, fragment of brick to the eminence to be used for the construction of building, transporting building material to the eminence in-process, often all use the lifting machine to transport, the lifting machine drives through the lifting motor and promotes the platform and rise, thereby transports building material to appointed height, has avoided the manpower transportation, has improved building efficiency greatly, reduces workman intensity of labour.
Among the prior art, the lifting speed of current lifting machine is often uncontrollable, and when transporting lighter material, lifting speed is very fast, leads to promoting unstably, and when promoting, needs to promote the motor and need overcome material gravity and promote platform self gravity simultaneously to lead to the energy extravagant, and current lifting machine can't realize promoting in succession, only can the single promote, and efficiency is lower.
Disclosure of Invention
The invention aims to solve the problems of uncontrollable speed, poor energy-saving performance, low efficiency and the like in the prior art, and provides an energy-saving self-speed-regulating door type elevator.
In order to achieve the purpose, the invention adopts the following technical scheme:
an energy-saving self-speed-regulating door type elevator comprises a base, wherein four first cavities are formed in the base, two first plates are fixedly connected to the upper surface of the base, two first sliding blocks are connected to the two first plates in a sliding mode through first sliding grooves, two opposite first sliding blocks are fixedly connected to a lifting platform together, and a speed regulating mechanism for regulating the lifting speed is arranged in each first cavity;
the speed regulating mechanism comprises four first rod pieces, the first rod pieces are in penetrating and rotating connection with the base through bearings, the first rod piece is matched with the corresponding first slide block in a penetrating way, one end of the first rod piece, which is positioned in the first cavity, is fixedly connected with a rotating column, the rotating column is of a hollow structure, the side wall of the rotating column is fixedly connected with a plurality of convex blocks, the inner side wall of the first cavity is fixedly connected with a plurality of elastic rubber bags, a plurality of liquid grooves are arranged in the base and are communicated with the corresponding elastic rubber bags, a third plate is sleeved in the liquid groove in a sealing and sliding manner, the side wall of one side of the third plate far away from the rotating column is fixedly connected with a first permanent magnet, and a second spring is fixedly connected between the first permanent magnet and the inner side wall of the liquid groove, a plurality of electromagnets are arranged in the base, and hydraulic oil is filled between the third plate and the corresponding elastic rubber bag.
Furthermore, the speed regulating mechanism further comprises four second sliding blocks, the second sliding blocks are sleeved in the corresponding rotating columns in a sliding mode, first springs are fixedly connected between the second sliding blocks and the inner side walls of the rotating columns, force sensitive resistors are fixedly connected to the inner side walls of the rotating columns, and the electromagnets are electrically connected with the force sensitive resistors through wires.
Furthermore, the speed regulating mechanism further comprises a plurality of second cavities, second permanent magnets are sleeved in the second cavities in a sealing and sliding mode, two second sliding grooves and a third sliding groove are formed in the inner side wall of each liquid groove, fourth plates are sleeved in the second sliding grooves in a sealing and sliding mode, fifth plates are sleeved in the third sliding grooves in a sliding mode, third springs are fixedly connected between the fifth plates and the inner side walls of the corresponding third sliding grooves, a plurality of communicating holes are formed in the base and are communicated with the second cavities and the corresponding second sliding grooves, pin grooves are formed in two opposite side walls of each third plate, and hydraulic oil is filled between the second permanent magnets and the corresponding fourth plates.
Further, first plate department is provided with the hoist mechanism that is used for promoting, hoist mechanism is including promoting the motor, promote motor and one of them first plate lateral wall passes through support fixed connection, two first plate is run through the rotation through the bearing and is connected with the second member, the output fixed connection of second member and promotion motor, one section interference fit that the second member is located between two first plates has two gears, the lateral wall of the relative one side of first plate all is connected with two guide posts through the bearing rotation, gear engagement has the cingulum, the cingulum both ends respectively with two promotion platform upper surface fixed connection.
Further, promote platform fixed surface and be connected with a plurality of fourth springs, the common fixedly connected with buffer board of one end that promotes the platform was kept away from to the fourth spring, buffer board fixed surface is connected with the rubber pad.
Furthermore, the elastic rubber bag is hemispherical, the convex block is hemispherical, and the outer wall of the convex block is fixedly connected with a rubber pad.
Furthermore, a spiral groove is formed in the side wall of the first rod piece, and the first sliding block is matched with the first rod piece through the spiral groove of the first rod piece.
The invention has the following advantages:
1. the pressure between the elastic rubber bag and the lug can be controlled by controlling the magnetic force of the electromagnet, so that the friction force between the elastic rubber bag and the lug is controlled, the lifting speed of the lifting platform can be controlled by controlling the friction force between the elastic rubber bag and the lug, the lifting speed is controllable, and the lifting is more stable;
2. the centrifugal force of the second sliding block is related to the rotating speed of the rotating column when the rotating column rotates, and the centrifugal force of the second sliding block is related to the pressure of the second sliding block on the force-sensitive resistor, so that the resistance of the force-sensitive resistor is related to the lifting speed, and the lifting machine can adjust the force-sensitive resistor according to the real-time lifting speed;
3. when the toothed belt is broken, the fourth plate can be pinned into the pin groove of the third plate, so that the elastic rubber bag cannot be compressed any more, and the rotating column is locked by the bump, so that the lifting platform is prevented from freely falling, and the safety of the lifter is greatly improved;
4. the two lifting platforms rise and fall one by one, when one lifting platform rises, the other lifting platform falls, and the gravitational potential energy of the other lifting platform is converted into the rising power of the other lifting platform, so that the lifting motor can lift the lifting platforms only by overcoming the gravity of materials, and the energy is saved;
5. through one lifting and one falling of the two lifting platforms, continuous lifting can be realized, and the lifting efficiency is greatly improved.
Drawings
Fig. 1 is a schematic structural diagram of an energy-saving self-speed-adjusting door type elevator provided by the invention;
FIG. 2 is an enlarged view taken at A in FIG. 1;
FIG. 3 is a partial cross-sectional view taken at B-B of FIG. 1;
FIG. 4 is an enlarged view of FIG. 3 at D;
FIG. 5 is a cross-sectional view taken at C-C of FIG. 1;
fig. 6 is a schematic structural diagram of a first rod in the energy-saving self-speed-adjusting door type elevator according to the present invention.
Detailed Description
Referring to fig. 1-6, an energy-saving self-speed-regulating door type elevator comprises a base 1, wherein four first cavities 202 are formed in the base 1, the four first cavities 202 are symmetrically arranged, two first plates 101 are fixedly connected to the upper surface of the base 1, two first sliding blocks 104 are respectively connected in the two first plates 101 in a sliding manner through first sliding grooves 103, two opposite first sliding blocks 104 are jointly and fixedly connected with a lifting platform 2, and a speed regulating mechanism for regulating lifting speed is arranged in each first cavity 202;
the speed regulation mechanism comprises four first rod pieces 201, the first rod pieces 201 are connected with a base 1 in a penetrating and rotating mode through bearings, the first rod pieces 201 are matched with corresponding first sliding blocks 104 in a penetrating mode, one end, located in a first cavity 202, of each first rod piece 201 is fixedly connected with a rotating column 203, each rotating column 203 is of a hollow structure, the side wall of each rotating column 203 is fixedly connected with a plurality of lugs 213, the inner side wall of each first cavity 202 is fixedly connected with a plurality of elastic rubber capsules 207, a plurality of liquid grooves 208 are formed in the base 1, eight liquid grooves 208 are symmetrically formed in the periphery of each first cavity 202, the liquid grooves 208, the elastic rubber capsules 207 and the lugs 213 correspond to one another, the liquid grooves 208 are communicated with the corresponding elastic rubber capsules 207, a third plate piece 209 is sleeved in the liquid grooves 208 in a sealing and sliding mode, a first permanent magnet 211 is fixedly connected to the side wall, far away from the rotating column 203, the electromagnet 210 is electrified to generate magnetic repulsion force for the first permanent magnet 211, a second spring 212 is fixedly connected between the first permanent magnet 211 and the inner side wall of the liquid groove 208, a plurality of electromagnets 210 are arranged in the base 1, hydraulic oil is filled between the third plate 209 and the corresponding elastic rubber bag 207, the magnetic repulsion force of the electromagnets 210 to the first permanent magnet 211 is enabled to act on the third plate 209 and act on the elastic rubber bag 207 through the hydraulic oil, so that when the lifting platform 2 is lifted, the rotating column 203 is enabled to rotate through the cooperation of the first slider 104 and the first rod 201, the rotating column 203 is enabled to drive the lug 213 to contact with the elastic rubber bag 207, the friction force generated when the two contact is related to the magnetic repulsion force generated by the electromagnets 210 to the first permanent magnet 211, the larger the friction force between the lug 213 and the elastic rubber bag 207 is, the rotating speed of the rotating column 203 is slower, and the lifting speed of the lifting platform 2 is reduced, and the two frictional force is less, and the rotation column 203 slew velocity is just very fast to make the lifting speed who promotes platform 2 rise, thereby the magnetic force size through control electro-magnet 210, can control the lifting speed who promotes platform 2, according to the weight that promotes the material, adjust lifting speed, thereby avoided promoting the material and promoted the material and promote speed very fast more, lead to promoting the unstability, and when promoting heavier material, the lifting efficiency is influenced by the lifting speed very slowly.
The elastic rubber bag 207 is a hemisphere, the protrusion 213 is a hemisphere, and a rubber pad is fixedly connected to the outer wall thereof.
Referring to fig. 1 and 6, a spiral groove has been seted up on the side wall of first rod 201, first slider 104 is rather than the cooperation through the spiral groove of first rod 201, first slider 104 inside wall is provided with the arch, protruding sliding connection is in the spiral groove of first rod 201, thereby make first slider 104 and first rod 201 pass through the spiral groove cooperation, thereby make first slider 104 when going up and down, can drive first rod 201 through the spiral groove and rotate, thereby make the slew velocity of first slider 104 and the slew velocity of first rod 201 positive correlation.
Referring to fig. 2-3, the speed adjusting mechanism further includes four second sliders 204, the second sliders 204 are slidably sleeved in the corresponding rotating columns 203, a first spring 205 is fixedly connected between the second slider 204 and the inner side walls of the rotating columns 203, force sensitive resistors 206 are fixedly connected to the inner side walls of the rotating columns 203, the second sliders 204 are in contact with the force sensitive resistors 206 under the action of centrifugal force and apply pressure to the force sensitive resistors 206, the resistance values of the force sensitive resistors 206 decrease with the increase of the pressure applied thereto, the electromagnets 210 are electrically connected with the force sensitive resistors 206 through wires, the cavities of the rotating columns 203 are arranged in an offset manner, the second sliders 204 are slidably sleeved in the second sliders 204, so that when the rotating columns 203 rotate when the lifting platform 2 is lifted, the second sliders 204 are subjected to centrifugal force under the rotation thereof, the centrifugal force applied to the second sliders 204 is positively correlated with the rotating speed of the rotating columns 203, and the rotating speed of the rotating columns 203 is positively correlated with the lifting speed of the lifting platform 2, that is, when the lifting speed is too fast, the centrifugal force applied to the second slider 204 is large, the pressure of the second slider 204 on the force-sensitive resistor 206 is large, the resistance of the force-sensitive resistor 206 is small, so that the magnetic force of the electromagnet 210 is increased, the magnetic repulsive force to which the first permanent magnet 211 is subjected is increased, thereby increasing the friction between the elastic rubber bladder 207 and the protrusion 213, and reducing the lifting speed of the lifting platform 2, and vice versa, when the lifting speed is slow, the centrifugal force applied to the second slider 204 is small, the pressure of the second slider 204 on the force-sensitive resistor 206 is small, even the second slider does not contact with the force-sensitive resistor 206, no pressure is generated on the force-sensitive resistor, the resistance value of the force-sensitive resistor 206 is large, the magnetic force generated by the electromagnet 210 is small, so that the friction between the elastic rubber bag 207 and the bump 213 is small, thereby increasing the lifting speed of the lifting platform 2, and the lifting speed of the lifting platform 2 can be adjusted according to the real-time speed.
Referring to fig. 1-4, the speed adjusting mechanism further includes a plurality of second cavities 4, a second permanent magnet 401 is hermetically and slidably sleeved in each second cavity 4, the electromagnet 210 generates a magnetic repulsive force to the second permanent magnet 401 when being energized, two second sliding grooves 403 and a third sliding groove 405 are formed in the inner side wall of the liquid groove 208, a fourth plate 404 is hermetically and slidably sleeved in each second sliding groove 403, a fifth plate 406 is slidably sleeved in each third sliding groove 405, a third spring 407 is fixedly connected between each fifth plate 406 and the corresponding inner side wall of the third sliding groove 405, a plurality of communication holes 402 are formed in the base 1, each communication hole 402 communicates the second cavity 4 with the corresponding second sliding groove 403, pin grooves 408 are formed in two opposite side walls of the third plate 209, hydraulic oil is filled between each second permanent magnet 401 and the corresponding fourth plate 404, as shown in fig. 4, the fifth plates 406 and the fourth plate 404 are vertically arranged, therefore, in a normal state, the fifth plate 406 blocks the fourth plate 404, when the toothed belt 303 is broken, the lifting platform 2 performs uncontrolled dropping movement, so that the rotating column 203 rotates at an overspeed, the third plate 209 continuously slides towards the rotating column 203 under the magnetic repulsion force, the friction force between the elastic rubber bag 207 and the lug 213 is continuously increased, the descending speed of the lifting platform 2 is firstly reduced, until the fifth plate 406 is pushed into the third sliding groove 405 by the third plate 209, the fourth plate 404 slides into the pin groove 408, the third plate 209 is locked, at this time, the lug 213 cannot compress the elastic rubber bag 207 again, the rotating column 203 is locked, the lifting platform 2 stops moving, and therefore, the situation that people are injured by the lifting platform 2 when the toothed belt 303 is broken is avoided, the safety is greatly improved, after the toothed belt is replaced, only the electromagnet 210 needs to be electrified reversely, the utility model can be reset for continuous use.
Referring to fig. 1 and 5, a lifting mechanism for lifting is arranged at the first plate 101, the lifting mechanism includes a lifting motor 3, the lifting motor 3 is fixedly connected with a side wall of one of the first plates 101 through a bracket, the two first plates 101 are rotatably connected with a second rod 301 through bearings, the second rod 301 is fixedly connected with an output end of the lifting motor 3, a section of the second rod 301 located between the two first plates 101 is in interference fit with two gears 302, two guide posts 304 are rotatably connected with side walls of opposite sides of the first plates 101 through bearings, a toothed belt 303 is sleeved on the guide posts 304 to make the toothed belt 303 in a U shape so as to lift the lifting platform 2, the gears 302 are engaged with the toothed belt 303, two ends of the toothed belt 303 are respectively fixedly connected with upper surfaces of the two lifting platforms 2, the toothed belt 303 is driven by the lifting motor 3 to move, so as to lift the two lifting platforms 2, one goes up and falls, when a promotion platform 2 goes up, another promotion platform 2 descends, the promotion platform 2 that descends turns into the power that another promotion platform 2 rose with its gravitational potential energy, thereby make promotion motor 3 only need overcome material gravity and can will promote the lifting of platform 2, do not need unnecessary work to overcome the gravity that promotes platform 2 self, make the load that promotes motor 3 reduce, it is more energy-conserving, and a promotion platform 2 promotes the back, can put the material of treating the promotion next time to another promotion platform 2, thereby make the lift process continuous, compare in prior art need put down the back with the platform earlier and put the material, promote again, realize continuous promotion, the efficiency of promotion is greatly improved.
Promote a plurality of fourth springs 501 of 2 fixed surface of platform, the common fixedly connected with buffer board 5 of one end that promotes platform 2 is kept away from to fourth spring 501, and fixed surface is connected with the rubber pad under 5 buffer boards, and through the rubber pad of 5 lower surfaces of buffer board and fourth spring 501's cooperation, when buffering promotion platform 2 descends to base 1, to base 1's impact force to avoid the impact force to damage base 1, improve machine life.
In the invention, a material to be lifted is placed on the lifting platform 2 positioned below, the lifting motor 3 is started, the lifting motor 3 drives the second rod member 301 to rotate, so that the second rod member 301 drives the gear 302 in interference fit with the second rod member to rotate, the gear 302 drives the toothed belt 303 meshed with the gear 302 to move, the lifting platform 2 below is lifted, the lifting platform 2 above is descended, the gravitational potential energy of the lifting platform is converted into the power for lifting the lifting platform 2 below, and the lifting motor 3 can lift the material only by overcoming the gravity of the material;
in the lifting process, the lifting platform 2 drives the first slider 104 to move, the first slider 104 drives the first rod 201 to rotate through the matching with the spiral groove of the first rod 201, the first rod 201 drives the corresponding rotating column 203 to rotate, the rotating speed of the rotating column 203 is positively correlated with the lifting speed of the first slider 104, the rotation of the rotating column 203 enables the second slider 204 to be subjected to centrifugal force, the second slider 204 overcomes the elastic force of the first spring 205 under the action of the centrifugal force and applies pressure to the force-sensitive resistor 206, the centrifugal force applied to the second slider 204 is positively correlated with the rotating speed of the rotating column 203, namely, the pressure applied to the force-sensitive resistor 206 is positively correlated with the lifting speed of the lifting platform 2;
when the lifting speed is too fast, the pressure applied to the force-sensitive resistor 206 by the second slider 204 is larger, and the resistance of the force-sensitive resistor 206 is smaller, so that the magnetic force of the electromagnet 210 is increased, the magnetic repulsion applied to the first permanent magnet 211 is increased, the pressure applied to the third plate 209 is increased, that is, the pressure between the elastic rubber bag 207 and the bump 213 is increased, the friction between the elastic rubber bag 207 and the bump 213 is increased, and the lifting speed of the lifting platform 2 is slowed down;
on the contrary, when the lifting speed is slow, the pressure of the second slider 204 on the force sensitive resistor 206 is small, even the second slider 204 is not in contact with the force sensitive resistor 206 under the elastic force of the first spring 205, the resistance value of the force sensitive resistor 206 is large, so that the magnetic force of the electromagnet 210 is reduced, the magnetic repulsion force on the first permanent magnet 211 is reduced, the pressure force on the third plate 209 is reduced, that is, the pressure between the elastic rubber bag 207 and the bump 213 is reduced, and further the friction between the elastic rubber bag 207 and the bump 213 is reduced, so that the lifting speed of the lifting platform 2 is increased;
when the toothed belt 303 is broken in the lifting process, the lifting platform 2 performs uncontrolled dropping movement at this time, so that the rotating column 203 rotates at an overspeed, at this time, the pressure of the second sliding block 204 on the force-sensitive resistor 206 is increased to the maximum, the resistance value of the force-sensitive resistor 206 is minimum, so that the magnetic force of the electromagnet 210 at this time is maximum, the magnetic repulsion force enables the third plate 209 to continuously slide towards the rotating column 203, so that the friction force between the elastic rubber bag 207 and the lug 213 is continuously increased, the descending speed of the lifting platform 2 is firstly slowed down until the third plate 209 pushes the fifth plate 406 into the third sliding groove 405 until the pin groove 409 of the third plate 209 slides to be aligned with the fourth plate 404, at this time, the second permanent magnet 401 moves under the magnetic repulsion force, the fourth plate 404 is pushed into the pin groove 408 by hydraulic oil, the third plate 209 is locked, and at this time, the lug 213 cannot compress the elastic rubber bag 207 again, the rotating column 203 is locked, the lifting platform 2 stops moving, and therefore the situation that when the toothed belt 303 is broken, the lifting platform 2 falls to hurt people is avoided, safety is greatly improved, after the toothed belt is replaced or maintained, only the electromagnet 210 needs to be electrified reversely, the electromagnet 210 generates magnetic attraction force on the first permanent magnet 211 and the second permanent magnet 401, the fourth plate 404 slides into the second sliding groove 403 again, the third plate 209 resets, and the fifth plate 406 limits the fourth plate 404 again under the elastic force of the third spring 407, so that the fourth plate 404 can reset for continuous use;
after the lifting is finished, the material to be lifted next time is placed on the lifting platform 2 located below the lifting platform at the moment, and the lifting motor 3 is started to rotate reversely to lift the material.
Claims (7)
1. An energy-saving self-speed-regulating door type elevator comprises a base (1) and is characterized in that four first cavities (202) are formed in the base (1), two first plates (101) are fixedly connected to the upper surface of the base (1), two first sliding blocks (104) are slidably connected to the two first plates (101) through first sliding grooves (103), two opposite first sliding blocks (104) are fixedly connected to a lifting platform (2) together, and a speed regulating mechanism for regulating lifting speed is arranged in each first cavity (202);
the speed regulation mechanism comprises four first rod pieces (201), the first rod pieces (201) are connected with a base (1) in a penetrating and rotating mode through bearings, the first rod pieces (201) are matched with corresponding first sliding blocks (104) in a penetrating mode, one ends, located in the first cavities (202), of the first rod pieces (201) are fixedly connected with rotating columns (203), the rotating columns (203) are of hollow structures, the side walls of the rotating columns (203) are fixedly connected with a plurality of protruding blocks (213), the inner side walls of the first cavities (202) are fixedly connected with a plurality of elastic rubber capsules (207), a plurality of liquid grooves (208) are formed in the base (1), the liquid grooves (208) are communicated with the corresponding elastic rubber capsules (207), third plate pieces (209) are sleeved in the liquid grooves (208) in a sealing and sliding mode, the third plate pieces (209) are far away from the side walls, located on one sides of the rotating columns (203), of the first permanent magnets (211), fixedly connected with second spring (212) between first permanent magnet (211) and liquid groove (208) inside wall, be provided with a plurality of electro-magnets (210) in base (1), it has hydraulic oil to fill between third plate (209) and the elastic rubber bag (207) that corresponds.
2. The energy-saving self-speed-regulating door type elevator is characterized in that the speed regulating mechanism further comprises four second sliding blocks (204), the second sliding blocks (204) are sleeved in corresponding rotating columns (203) in a sliding mode, first springs (205) are fixedly connected between the second sliding blocks (204) and the inner side walls of the rotating columns (203), force-sensitive resistors (206) are fixedly connected to the inner side walls of the rotating columns (203), and the electromagnets (210) are electrically connected with the force-sensitive resistors (206) through conducting wires.
3. The energy-saving self-speed-regulating door type elevator as claimed in claim 1, wherein the speed regulating mechanism further comprises a plurality of second cavities (4), a second permanent magnet (401) is hermetically and slidably sleeved in the second cavities (4), two second sliding grooves (403) and a third sliding groove (405) are formed in the inner side wall of the liquid groove (208), a fourth plate (404) is hermetically and slidably sleeved in the second sliding groove (403), a fifth plate (406) is slidably sleeved in the third sliding groove (405), a third spring (407) is fixedly connected between the fifth plate (406) and the inner side wall of the corresponding third sliding groove (405), a plurality of communicating holes (402) are formed in the base (1), the communicating holes (402) communicate the second cavities (4) with the corresponding second sliding grooves (403), pin grooves (408) are formed in two opposite side walls of the third plate (209), and hydraulic oil is filled between the second permanent magnet (401) and the corresponding fourth plate (404).
4. An energy-saving self-speed-adjusting door type elevator as claimed in claim 1, a lifting mechanism for lifting is arranged at the first plate (101), the lifting mechanism comprises a lifting motor (3), the lifting motor (3) is fixedly connected with one side wall of the first plate (101) through a bracket, the two first plates (101) are connected with a second rod piece (301) in a penetrating and rotating way through a bearing, the second rod piece (301) is fixedly connected with the output end of the lifting motor (3), a section of the second rod piece (301) positioned between the two first plates (101) is in interference fit with two gears (302), the side wall of the opposite side of the first plate (101) is rotatably connected with two guide posts (304) through bearings, the gear (302) is meshed with a toothed belt (303), and two ends of the toothed belt (303) are fixedly connected with the upper surfaces of the two lifting platforms (2) respectively.
5. The energy-saving self-speed-adjusting door type elevator as claimed in claim 1, wherein a plurality of fourth springs (501) are fixedly connected to the lower surface of the lifting platform (2), one ends of the fourth springs (501) far away from the lifting platform (2) are fixedly connected with a buffer plate (5) together, and a rubber pad is fixedly connected to the lower surface of the buffer plate (5).
6. The energy-saving self-speed-adjusting door type elevator as claimed in claim 1, wherein the elastic rubber bag (207) is hemispherical, the protrusion (213) is hemispherical and the outer wall thereof is fixedly connected with a rubber pad.
7. The energy-saving self-speed-adjusting door type elevator as claimed in claim 1, wherein the first rod member (201) has a spiral groove formed on a side wall thereof, and the first slider (104) is engaged with the spiral groove of the first rod member (201) through the spiral groove.
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| CN202210439865.2A CN114835050B (en) | 2022-04-25 | 2022-04-25 | Energy-saving self-speed-adjusting door type elevator |
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| CN202210439865.2A CN114835050B (en) | 2022-04-25 | 2022-04-25 | Energy-saving self-speed-adjusting door type elevator |
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| CN114835050A true CN114835050A (en) | 2022-08-02 |
| CN114835050B CN114835050B (en) | 2023-12-08 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN116392327A (en) * | 2023-04-12 | 2023-07-07 | 南通理工学院 | Mobile medical robot |
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| US20190284031A1 (en) * | 2018-03-16 | 2019-09-19 | Ming-Hsien Huang | Lifting device |
| CN208932898U (en) * | 2018-11-01 | 2019-06-04 | 邱凤志 | A kind of novel civil building engineering material elevator attachment device |
| CN112357824A (en) * | 2020-11-11 | 2021-02-12 | 浦江培咯电子科技有限公司 | Speed-adjustable and protective cargo elevator equipment |
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| CN116392327B (en) * | 2023-04-12 | 2024-08-23 | 南通理工学院 | Mobile medical robot |
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|---|---|
| CN114835050B (en) | 2023-12-08 |
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