CN112374333A - Building construction safety lift - Google Patents

Building construction safety lift Download PDF

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Publication number
CN112374333A
CN112374333A CN202011251062.1A CN202011251062A CN112374333A CN 112374333 A CN112374333 A CN 112374333A CN 202011251062 A CN202011251062 A CN 202011251062A CN 112374333 A CN112374333 A CN 112374333A
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CN
China
Prior art keywords
gear
plate
spring
parallel hinge
spring shock
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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.)
Withdrawn
Application number
CN202011251062.1A
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Chinese (zh)
Inventor
邢明款
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Individual
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Individual
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Publication date
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Priority to CN202011251062.1A priority Critical patent/CN112374333A/en
Publication of CN112374333A publication Critical patent/CN112374333A/en
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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
    • B66B11/0266—Passive systems
    • 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
    • B66B5/28—Buffer-stops for cars, cages, or skips
    • B66B5/282—Structure thereof
    • 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
    • F16F15/06—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 metal springs
    • F16F15/067—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 metal springs using only wound springs

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Fluid Mechanics (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Acoustics & Sound (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Types And Forms Of Lifts (AREA)

Abstract

The invention discloses a building construction safety lifter, which comprises a gear, a rack meshed and matched with the gear and a driving buffer chain combination, wherein the driving buffer chain combination comprises a parallel hinge four-bar mechanism, a main chain wheel, a chain and spring shock absorption rods, the spring shock absorption rods are positioned in the parallel hinge four-bar mechanism and are vertically distributed, and two ends of each spring shock absorption rod are correspondingly and rotatably connected with two opposite hinged shafts on the parallel hinge four-bar mechanism. According to the invention, the parallel hinge four-bar mechanism is arranged, the four articulated shafts of the parallel hinge four-bar mechanism are connected with the main chain wheels, the four main chain wheels are meshed with one chain, the main chain wheel positioned at the lowest part is connected with the gear, specifically, a reinforcing shaft is arranged on one side of the main chain wheel, one end of the reinforcing shaft is fixedly connected with one side of the teeth on the gear, and when the lifting mechanism is lifted, the load borne by the teeth on the gear is mainly borne by the main chain wheels, so that the phenomenon of tooth breakage can be avoided.

Description

Building construction safety lift
Technical Field
The invention relates to the technical field of elevators for building construction, in particular to a building construction safety elevator.
Background
The construction elevator is also called as construction elevator for building, and is one man-carrying and cargo-carrying construction machine used in building.
However, because the elevator is used frequently, the load of the elevator box is large, in order to improve the power input of the elevator box, the volume of the gear is small, and further the phenomenon of gear breakage is easy to occur, and the gear breakage directly influences the use of the elevator box, and when the condition of continuous gear breakage occurs, a serious box falling accident is easy to cause; and the moment of rising start or falling stop of the lifting box can generate impact load due to the action of inertia force, so that the service life of the motor-driven speed reducer part can be greatly reduced.
Therefore, the invention provides a building construction safety elevator.
Disclosure of Invention
The invention aims to: in order to solve the problems mentioned in the background art, a building construction safety elevator is provided.
In order to achieve the purpose, the invention adopts the following technical scheme:
a safety lifter for building construction comprises a gear, a rack engaged with the gear and a driving buffer chain combination, wherein the driving buffer chain combination comprises a parallel hinge four-bar mechanism, four main chain wheels, a chain and spring shock-absorbing rods, the spring shock-absorbing rods are positioned in the parallel hinge four-bar mechanism and vertically distributed, two ends of each spring shock-absorbing rod correspond to and are rotationally connected with two opposite hinged shafts on the parallel hinge four-bar mechanism, the number of the four main chain wheels is four, the four main chain wheels are respectively and rotationally connected with one end of the four hinged shafts of the parallel hinge four-bar mechanism, the four main chain wheels are positioned on the same plane, one hinged shaft close to the top of each spring shock-absorbing rod and two adjacent connecting rods and spring shock-absorbing rods on the parallel hinge four-bar mechanism are rotationally connected, the hinged shafts and the main chain wheels are fixedly connected, one side of one main chain wheel close to the bottom of each spring shock-absorbing rod is fixedly, the gear is arranged on one side of the main chain wheel and coaxially distributed, and one side of the upper teeth of the gear is fixedly connected with one end of the reinforcing shaft.
As a further description of the above technical solution:
the spring shock absorption rod comprises an upper rod, a shock absorption spring and a lower sleeve, the bottom of the upper rod is sleeved in the lower sleeve, and the shock absorption spring is arranged between the upper rod and the lower sleeve.
As a further description of the above technical solution:
a bearing plate is fixedly arranged on one side of the upper rod, and guide sliding frames are fixedly arranged on one sides of the upper rod and the lower sleeve.
As a further description of the above technical solution:
one side of the lower sleeve, which is close to the rack, is provided with an elastic anti-falling condensation mechanism, one end of the elastic anti-falling condensation mechanism is meshed with the chain, and the other end of the elastic anti-falling condensation mechanism is matched with the rack.
As a further description of the above technical solution:
elasticity prevents weighing down condensation mechanism includes rectangle uide bushing, deflector, reset spring, lockplate and drive sprocket, the deflector runs through the cover and establishes on the rectangle uide bushing, drive sprocket rotates the one end of connecting at the deflector, one side of deflector is fixed to be provided with the clearance between and runs through the rectangle uide bushing and extend outside locating plate, the lockplate is fixed to be set up on the locating plate and with rack interlock cooperation.
As a further description of the above technical solution:
one side of the rectangular guide sleeve is fixedly provided with a limiting plate, one side of the guide plate is fixedly provided with a push plate, and the limiting plate is connected with the push plate through a return spring.
In summary, due to the adoption of the technical scheme, the invention has the beneficial effects that:
1. according to the invention, the parallel hinge four-bar mechanism is arranged, the four articulated shafts of the parallel hinge four-bar mechanism are connected with the main chain wheels, the four main chain wheels are meshed with one chain, the main chain wheel positioned at the lowest part is connected with the gear, specifically, a reinforcing shaft is arranged on one side of the main chain wheel, one end of the reinforcing shaft is fixedly connected with one side of the teeth on the gear, and when the lifting mechanism is lifted, the load borne by the teeth on the gear is mainly borne by the main chain wheels, so that the phenomenon of tooth breakage can be avoided.
2. In the invention, the spring shock-absorbing rods are vertically distributed on the parallel hinge four-bar mechanism, the top and the bottom of the spring shock-absorbing rods are correspondingly and rotatably connected with two hinge shafts which are diagonally distributed on the parallel hinge four-bar mechanism, and the elastic action part on the spring shock-absorbing rods is connected with the external power input device and the lifting box, so that the spring shock-absorbing rods have a buffering effect at the moment when the lifting box is started to ascend or stopped to descend, and the impact force on the external power input device and the gears can be greatly reduced.
3. According to the anti-falling device, the lower sleeve at the lower end is arranged on the spring shock absorption rod, the elastic anti-falling condensation mechanism is arranged on one side, close to the rack, of the lower sleeve, one end of the elastic anti-falling condensation mechanism is meshed with the chain, the other end of the elastic anti-falling condensation mechanism is matched with the rack, the elastic anti-falling condensation mechanism has the effect that one end of the elastic anti-falling condensation mechanism is meshed with the rack instantly after the chain is disconnected accidentally, and the lower sleeve is fixed relative to the rack at the moment, so.
Drawings
Fig. 1 is a schematic structural view of a driving buffer chain combination, a gear and a rack of a building construction safety lifter integrally matched according to the invention;
FIG. 2 is a schematic structural view of a driving buffer chain assembly and a gear connection of the safety elevator for construction according to the present invention;
FIG. 3 is a schematic structural view of the connection of a spring shock-absorbing rod and a parallel hinge four-bar mechanism of the safety elevator for building construction according to the present invention;
fig. 4 is a structural schematic diagram of the cooperation of the lower sleeve, the chain and the elastic anti-falling condensation mechanism of the building construction safety elevator.
Illustration of the drawings:
1. a gear; 11. teeth; 2. a rack; 3. driving a buffer chain combination; 31. a parallel hinge four-bar mechanism; 311. hinging a shaft; 312. a connecting rod; 32. a main sprocket; 321. reinforcing the shaft; 33. a chain; 34. a spring shock-absorbing lever; 341. a rod is arranged; 3411. a carrier plate; 342. a damping spring; 343. setting a sleeve; 4. a guide carriage; 5. an elastic anti-falling condensation mechanism; 51. a rectangular guide sleeve; 511. a limiting plate; 52. a guide plate; 521. positioning a plate; 522. pushing the plate; 53. a return spring; 54. a locking plate; 55. a traction chain wheel.
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. 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. 1-3, a building construction safety elevator includes a gear 1 and a rack 2 engaged with the gear 1, which is created on the basis of the existing lifting by engaging the gear 1 with the rack 2; the driving buffer chain combination 3 is the invention of the embodiment and creates a structure, can effectively solve the problem of tooth breakage of the gear 1, prolong the service life of the gear 1 and reduce the impact load of the driving input mechanism; the concrete steps are as follows: the driving buffer chain combination 3 comprises a parallel hinge four-bar mechanism 31, a main chain wheel 32, a chain 33 and a spring buffer rod 34, wherein the parallel hinge four-bar mechanism 31 is formed by hinging four connecting rods with the same length end to end, the spring buffer rod 34 is positioned in the parallel hinge four-bar mechanism 31 and vertically distributed, two ends of the spring buffer rod 34 are correspondingly and rotatably connected with two opposite hinging shafts 311 on the parallel hinge four-bar mechanism 31, the up-and-down buffer action of the spring buffer rod 34 can drive the parallel hinge four-bar mechanism 31 to deform, the number of the main chain wheels 32 is four and are respectively and rotatably connected with one end of the four hinging shafts 311 on the parallel hinge four-bar mechanism 31, the four main chain wheels 32 are positioned on the same plane, the chain 33 is arranged around the four main chain wheels 32 and forms chain transmission, one hinging shaft 311 close to the top of the spring buffer rod 34 and two adjacent connecting rods 312 and spring buffer rods 34 on the parallel hinge, the hinge shaft 311 is fixedly connected with the main sprocket 32, that is, the other end of the hinge shaft 311 is used for connecting an external rotary power input shaft, one side of a main sprocket 32 close to the bottom of the spring shock-absorbing rod 34 is fixedly provided with reinforcing shafts 321 which are uniformly distributed in the circumferential direction, the gear 1 is arranged on one side of the main sprocket 32 and is coaxially distributed, one side of the upper tooth 11 of the gear 1 is fixedly connected with one end of the reinforcing shaft 321, the chain transmission drives one main sprocket 32 positioned at the bottom to rotate, the main sprocket 32 rotates to drive the gear 1 to rotate, at this time, as the upper tooth 11 of the gear 1 is connected by the reinforcing shaft 321, the phenomenon that the tooth 11 is broken can be avoided, and the stress between the tooth 11 and the tooth body is small, so the service life of the gear 1 can be greatly prolonged, wherein the spring shock-absorbing rod 34 comprises an upper rod 341, a shock-absorbing spring 342 and a lower sleeve 343, the bottom of the upper rod 341, the damping spring 342 is disposed between the upper rod 341 and the lower sleeve 343, a bearing plate 3411 is fixedly disposed on one side of the upper rod 341, an upper end surface of the bearing plate 3411 is used for mounting an external rotary power input module, and one end of the bearing plate is used for connecting the elevator car, a guide carriage 4 is fixedly disposed on one side of the upper rod 341 and one side of the lower sleeve 343, the guide carriage 4 is used for connecting the elevator shaft, and usually, the guide carriage rolls in a sliding fit manner, because the upper rod 341 and the lower sleeve 343 are elastically fitted, when the elevator car starts and stops ascending and descending, the parallel hinge four-bar mechanism 31 is deformed, the damping spring 342 generates a damping stroke, and further, the impact load of the driving input mechanism can be reduced.
Example 2
Referring to fig. 4, the difference from embodiment 1 is that an elastic anti-falling condensation mechanism 5 is arranged on one side of the lower sleeve 343 close to the rack 2, one end of the elastic anti-falling condensation mechanism 5 is engaged with the chain 33 and the other end is used in cooperation with the rack 2, the elastic anti-falling condensation mechanism 5 has the function that when the chain 33 in embodiment 1 is accidentally disconnected, one end of the elastic anti-falling condensation mechanism 5 is instantaneously engaged with the rack 2, and at the moment, the lower sleeve 343 is fixed relative to the rack 2, so that the anti-falling function is achieved; specifically, the elastic anti-falling condensation mechanism 5 comprises a rectangular guide sleeve 51, a guide plate 52, a return spring 53, a locking plate 54 and a traction chain wheel 55, wherein the guide plate 52 is sleeved on the rectangular guide sleeve 51 in a penetrating manner, the traction chain wheel 55 is rotatably connected to one end of the guide plate 52, a positioning plate 521 which penetrates through the rectangular guide sleeve 51 with a gap and extends to the outside is fixedly arranged between one sides of the guide plate 52, the locking plate 54 is fixedly arranged on the positioning plate 521 and is meshed with the rack 2, specifically, the traction chain wheel 55 is meshed with the outer periphery of the chain 33, the chain 33 is in a tightening state, the locking plate 54 is in a state of being separated from the rack 2, a tooth groove is formed in one side opposite to the rack 2, a limiting plate 511 is fixedly arranged on one side of the rectangular guide sleeve 51, a push plate 511 is fixedly arranged on one side of the guide plate 52, the limiting plate, the return spring 53 is in a stretching state, and when the chain 33 is accidentally broken, the return spring 53 is reset to drive the guide plate 52 to move towards the direction of the rack 2, and further drive the locking plate 54 to bite the rack 2, so that the falling prevention function is achieved.
The working principle is as follows: when the lifting box is controlled to ascend, the rotary power input mechanism is controlled to drive the main chain wheel 32 positioned at the top to rotate, then the other three main chain wheels 32 are driven by the chain 33 to synchronously rotate, at this time, the gear 1 is driven to rotate by the bottommost main chain wheel 32 through the reinforcing shaft 321, the teeth 11 are meshed with the rack 2, at this time, the whole parallel hinge four-bar mechanism 31 starts to ascend, and then the lifting box is driven to ascend, in the process, the parallel hinge four-bar mechanism 31 can generate the condition of vertical compression deformation due to the action of power instant input, at this time, the damping spring 342 plays the role of buffering, after the lifting box ascends at constant speed, the damping spring 342 resets, and due to the heavier lifting box, the damping spring 342 cannot generate the phenomenon of reciprocating rebound, therefore, the elevator has the function of preventing teeth from being broken, and is high in safety.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.

Claims (6)

1. The utility model provides a construction safety lift, includes gear (1) and rack (2) with gear (1) meshing cooperation, its characterized in that, still includes drive buffer chain combination (3), drive buffer chain combination (3) are including parallel hinge four-bar linkage (31), main sprocket (32), chain (33) and spring shock absorber pole (34), spring shock absorber pole (34) are located parallel hinge four-bar linkage (31) and are vertical distribution, and two relative articulated shafts (311) are rotated on the both ends correspondence and parallel hinge four-bar linkage (31) of this spring shock absorber pole (34) and are connected, the quantity of main sprocket (32) is four and rotate respectively and connect the one end at four articulated shafts (311) of parallel hinge four-bar linkage (31), four main sprocket (32) are on the coplanar, be close to one at spring shock absorber pole (34) top articulated shaft (311) and two adjacent connecting rods on the parallel hinge four-bar linkage (31) (312) And spring shock absorber pole (34) are the rotation and connect, and this articulated shaft (311) and main sprocket (32) fixed connection are close to one of spring shock absorber pole (34) bottom fixed axle of strengthening (321) that is provided with circumference evenly distributed in one side of main sprocket (32), gear (1) sets up in one side of this main sprocket (32) and distributes for the same axle center, and one side of tooth (11) and the one end fixed connection of strengthening axle (321) are gone up in this gear (1).
2. A building construction safety hoist according to claim 1, characterized in that the spring shock rod (34) comprises an upper rod (341), a shock spring (342) and a lower sleeve (343), the upper rod (341) being fitted at the bottom inside the lower sleeve (343), the shock spring (342) being arranged between the upper rod (341) and the lower sleeve (343).
3. A building construction safety hoist according to claim 2, characterized in that a bearing plate (3411) is fixedly arranged at one side of the upper rod (341), and a guide carriage (4) is fixedly arranged at one side of both the upper rod (341) and the lower sleeve (343).
4. The building construction safety elevator according to claim 2, characterized in that an elastic anti-falling condensation mechanism (5) is arranged on one side of the lower sleeve (343) close to the rack (2), one end of the elastic anti-falling condensation mechanism (5) is engaged with the chain (33), and the other end is matched with the rack (2).
5. The building construction safety elevator according to claim 4, characterized in that the elastic anti-falling condensation mechanism (5) comprises a rectangular guide sleeve (51), a guide plate (52), a return spring (53), a locking plate (54) and a traction chain wheel (55), the guide plate (52) is sleeved on the rectangular guide sleeve (51) in a penetrating manner, the traction chain wheel (55) is connected to one end of the guide plate (52) in a rotating manner, a positioning plate (521) which penetrates through the rectangular guide sleeve (51) and extends to the outside is fixedly arranged between one sides of the guide plate (52), and the locking plate (54) is fixedly arranged on the positioning plate (521) and is in meshed fit with the rack (2).
6. The building construction safety elevator as claimed in claim 5, wherein a limit plate (511) is fixedly arranged at one side of the rectangular guide sleeve (51), a push plate (522) is fixedly arranged at one side of the guide plate (52), and the limit plate (511) is connected with the push plate (522) through a return spring (53).
CN202011251062.1A 2020-11-11 2020-11-11 Building construction safety lift Withdrawn CN112374333A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202011251062.1A CN112374333A (en) 2020-11-11 2020-11-11 Building construction safety lift

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202011251062.1A CN112374333A (en) 2020-11-11 2020-11-11 Building construction safety lift

Publications (1)

Publication Number Publication Date
CN112374333A true CN112374333A (en) 2021-02-19

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN202011251062.1A Withdrawn CN112374333A (en) 2020-11-11 2020-11-11 Building construction safety lift

Country Status (1)

Country Link
CN (1) CN112374333A (en)

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB686503A (en) * 1951-04-11 1953-01-28 Baker Perkins Ltd Improvements in and relating to tensioning means for chain drives
US3856101A (en) * 1973-04-04 1974-12-24 Ford Motor Co Power steering device
US4704914A (en) * 1986-03-21 1987-11-10 Horng Jin Shan Chain breakdown safety device for a power-driven roller door
CN104803257A (en) * 2015-03-25 2015-07-29 南宁市宏涛机械设备有限责任公司 Lifter having anti-falling function
CN111043266A (en) * 2019-12-10 2020-04-21 福建农林大学 Chain starts buffer gear
CN111071968A (en) * 2020-01-06 2020-04-28 中船重工鹏力（南京）智能装备系统有限公司 Anti-falling device for gear and rack running in vertical direction
CN210505344U (en) * 2019-08-28 2020-05-12 南通图海机械有限公司 Overload protection type elevating system
CN111761990A (en) * 2020-07-20 2020-10-13 河南科技大学 Variant wheel type walking device capable of realizing wheel-track switching

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB686503A (en) * 1951-04-11 1953-01-28 Baker Perkins Ltd Improvements in and relating to tensioning means for chain drives
US3856101A (en) * 1973-04-04 1974-12-24 Ford Motor Co Power steering device
US4704914A (en) * 1986-03-21 1987-11-10 Horng Jin Shan Chain breakdown safety device for a power-driven roller door
CN104803257A (en) * 2015-03-25 2015-07-29 南宁市宏涛机械设备有限责任公司 Lifter having anti-falling function
CN210505344U (en) * 2019-08-28 2020-05-12 南通图海机械有限公司 Overload protection type elevating system
CN111043266A (en) * 2019-12-10 2020-04-21 福建农林大学 Chain starts buffer gear
CN111071968A (en) * 2020-01-06 2020-04-28 中船重工鹏力（南京）智能装备系统有限公司 Anti-falling device for gear and rack running in vertical direction
CN111761990A (en) * 2020-07-20 2020-10-13 河南科技大学 Variant wheel type walking device capable of realizing wheel-track switching

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Application publication date: 20210219

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