CN115303910B - Vertical lift ladder with slow-descending brake - Google Patents
Vertical lift ladder with slow-descending brake Download PDFInfo
- Publication number
- CN115303910B CN115303910B CN202211229343.6A CN202211229343A CN115303910B CN 115303910 B CN115303910 B CN 115303910B CN 202211229343 A CN202211229343 A CN 202211229343A CN 115303910 B CN115303910 B CN 115303910B
- Authority
- CN
- China
- Prior art keywords
- flow
- hydraulic oil
- limiting
- oil tank
- gear
- Prior art date
- 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.)
- Active
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
- B66B5/02—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions
- B66B5/04—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions for detecting excessive speed
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
- B66B5/02—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions
- B66B5/04—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions for detecting excessive speed
- B66B5/044—Mechanical overspeed governors
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
- B66B5/02—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions
- B66B5/16—Braking or catch devices operating between cars, cages, or skips and fixed guide elements or surfaces in hoistway or well
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Types And Forms Of Lifts (AREA)
Abstract
The invention relates to a vertical elevator with a slow descending brake, wherein a guide rail is arranged between an outer support of the elevator and a car body, a slow descending brake mechanism connected to the car body is arranged between the guide rail and the car body, the slow descending brake mechanism comprises a first gear, a base and a hydraulic oil tank, the first gear is meshed with teeth on the guide rail, a second gear and a third gear are arranged in the base, the hydraulic oil tank is connected to the upper end of the base, the left end and the right end of the communication part of a first cavity and a second cavity are respectively communicated with a first flow guide channel and a second flow guide channel, flow limiting mechanisms are arranged at openings at the upper ends of the first flow guide channel and the second flow guide channel in the hydraulic oil tank, and each flow limiting mechanism comprises a sleeve, a flow limiting plate and a flow limiting rod. The invention adopts a mechanical structure, can finish the slow descending of the elevator when the elevator has electrical faults without electrical support, and protects the safety of people and objects in the elevator.
Description
Technical Field
The invention relates to the technical field of elevators, in particular to a vertical elevator with a slow-descending brake.
Background
The elevator, also called cargo lift, is a special cargo lift for transporting goods between floors of a building, and is mainly used for transporting various construction materials, transporting goods up and down between working floors, lifting cars between floors of a stereo garage and an underground garage, and the like.
The elevator needs electric power to provide power in the use, but when electric power failure, easy out of control can't fix the rope, and the elevator descends fast, causes the harm to personnel, the material in elevator and the elevator.
Patent document with application number CN202020211728.X discloses a prevention electrical fault's elevator slowly falls equipment, including the outer support frame of elevator, the lower part fixedly connected with support frame in elevator outer support frame middle part, the lower part fixedly connected with rope loose pulley of support frame, the fixed rope that has cup jointed in the lower part of rope loose pulley, there are phase-changing electro-magnet and air brake in the inside of the outer support frame one side of elevator, the lower part fixedly connected with iron sheet of air brake, electro-magnet one has been placed to one side of air brake, electro-magnet two has been placed to the lower part of air brake, standby power supply has been fixedly placed to the lower part of phase-changing electro-magnet.
In order to prevent electrical failure, the elevator is still provided with a standby power supply and electrical components, and in the operating place of the elevator, especially in the outdoor and outdoor sites used in the building during construction, because the operating environment of the elevator is bad, electrical failure occurs frequently, and even if the standby power supply is arranged, the electrical failure cannot be avoided, so that the elevator capable of completing the slow descending task without electrical support when the electrical failure occurs is needed.
Disclosure of Invention
In order to solve the problem that the elevator is easy to lose control in the electrical fault in the prior art, the invention provides a vertical elevator with a slow-falling brake, aiming at adopting a mechanical structure and being capable of completing the slow falling of the elevator in the electrical fault without electrical support.
In order to achieve the purpose, the technical scheme of the invention is as follows:
a vertical elevator with slow-descending brake comprises an outer elevator support and a car body, wherein a guide rail is arranged between two opposite inner side walls of the outer elevator support and the car body, teeth are arranged on one side surface of the guide rail, facing the car body, and a slow-descending brake mechanism is arranged between the guide rail and the car body;
the slow-descending brake mechanism comprises a first gear, a base and a hydraulic oil tank, and the first gear is meshed with teeth on the guide rail;
the hydraulic car flow limiting device is characterized in that a first cavity and a second cavity are arranged in the base, the lower end of the first cavity is communicated with the upper end of the second cavity, a second gear is arranged in the first cavity, the second gear is in sliding contact with the inner surface of the first cavity, the rear end of the second gear is connected with a transmission shaft which penetrates through the base and is connected with the first gear through a coupling, a third gear is arranged in the second cavity, the third gear is in sliding contact with the inner surface of the second cavity, the lower end of the second gear is meshed with the upper end of the third gear, the base is fixed on the car main body, the hydraulic oil tank is connected to the upper end of the base, the left end and the right end of the communication position of the first cavity and the second cavity are respectively communicated with a first flow guide channel and a second flow guide channel, the first flow guide channel and the second flow guide channel are all upwards communicated with a hydraulic oil tank, the upper end opening of the first flow guide channel and the upper end opening of the second flow guide channel are all provided with a flow limiting mechanism located in the hydraulic oil tank, the flow limiting mechanism comprises a sleeve, the lower end of the sleeve is connected with the inner bottom surface of the hydraulic oil tank, a flow limiting plate is arranged in the sleeve, a flow limiting plate, a plurality of flow limiting hole is arranged in the sleeve, and a plurality of flow limiting plate is arranged on the flow limiting holes are formed in the flow limiting plate, and a plurality of the flow limiting plate.
Furthermore, the diameter of the flow limiting rod is matched with that of the flow limiting hole, the total sectional area of the flow limiting holes is smaller than or equal to that of the first flow guide channel or the second flow guide channel, and the sectional areas of the first flow guide channel and the second flow guide channel are the same.
Furthermore, a plurality of flow limiting holes in the flow limiting plate are distributed along the Archimedes spiral, a plurality of flow limiting rods are sequentially arranged towards the inner end along the outer end of the Archimedes spiral, each flow limiting rod is coaxially opposite to one flow limiting hole below the flow limiting rod, the total number of the flow limiting rods is smaller than the total number of the flow limiting holes and larger than two thirds of the total number of the flow limiting holes, and the length of the flow limiting rods distributed along the Archimedes spiral from the outside to the inside is gradually reduced.
Furthermore, the difference in height between the lower ends of two adjacent flow limiting rods is 5mm, and the flow limiting plates are located below the lower ends of all the flow limiting rods.
Further, the upper end of first water conservancy diversion passageway and second water conservancy diversion passageway is respectively through hole and the hydraulic tank intercommunication on the bottom surface in the hydraulic tank, sheathed tube internal perisporium upper end is equipped with the spacing ring, and the spacing ring cover is equipped with the inner ring through the spacing ring and stretches into the intraductal stand pipe of cover in the hydraulic tank outside all current-limiting rods, the lower extreme of stand pipe runs through the current-limiting plate, and fixed connection is on the bottom surface in the hydraulic tank between through hole and sleeve pipe.
Furthermore, the lower end of each flow limiting rod is located below the limiting ring, and when the upper surface of the flow limiting plate contacts the lower surface of the limiting ring, each flow limiting rod penetrates through the corresponding flow limiting hole.
Furthermore, the stand pipe is the pipe body, and the lower extreme of stand pipe is provided with the n shape groove that the opening is decurrent, is provided with the regulation pole in the stand pipe, adjust the pole for the body of rod of outband screw thread, adjust the pole lower extreme and be connected with both ends and stretch out the n shape groove, and along the gliding regulating block from top to bottom in the n shape groove, the upper end of adjusting the pole runs through hydraulic tank's apron and is connected with the nut, the nut is rotatable spacing connected state with hydraulic tank's apron, be connected with the extension spring of cover outside the stand pipe between regulating block and the current-limiting plate.
Furthermore, both sides of one side surface with teeth on the guide rail are provided with limiting ridges, and the limiting ridges are convex ridges arranged along the height direction of the guide rail.
Furthermore, slowly fall brake mechanism has four, and lateral wall respectively has two slowly fall brake mechanism about car main body, lies in two slowly fall brake mechanism with one side and all connects same guide rail.
Furthermore, one-way channels are arranged on the upper portions of the first flow guide channel and the second flow guide channel, one end of each one-way channel on the second flow guide channel is communicated with the second flow guide channel, the other end of each one-way channel is upwards communicated with a hydraulic oil tank outside the sleeve, one end of each one-way channel on the first flow guide channel is communicated with the first flow guide channel, the other end of each one-way channel is upwards communicated with the hydraulic oil tank outside the sleeve, a one-way valve is arranged in each one-way channel, and the inlet end of each one-way valve faces towards the hydraulic oil tank.
Through the technical scheme, the invention has the beneficial effects that:
the slow-falling brake mechanism is of a pure mechanical structure, is not excessively connected with other parts of the elevator, is not influenced by electrical performance, can ensure that the elevator stably and vertically falls to the bottommost layer at a slow speed even if the elevator falls due to electrical failure or mechanical failure, and is convenient for maintaining electrical equipment of the elevator.
The invention naturally restores the initial state after descending, and does not need to maintain and adjust the slow descending brake mechanism.
The invention is used when the speed of the car body is too high, but the invention can obviously reduce the speed of the car body after being used, so that the car body can slowly and stably land without damaging people or materials in the car.
The slow-descending brake mechanism has adjustable starting speed and is suitable for elevators with various running speeds.
Drawings
Fig. 1 is a schematic structural view of the present invention (without the front side wall of the outer cage of the elevator);
FIG. 2 isbase:Sub>A sectional view taken along line A-A of FIG. 1;
FIG. 3 is a sectional view taken along line B-B of FIG. 2;
FIG. 4 is an enlarged view of section C of FIG. 3;
FIG. 5 is a cross-sectional view taken along line D-D of FIG. 4;
FIG. 6 is a schematic view of the structure of the guide rail;
fig. 7 is a schematic structural diagram of the connection of the guide pipe, the nut, the adjusting rod and the hydraulic oil tank.
The reference numbers in the figures are: 1. an elevator outer support; 2. a car body; 3. a guide rail; 4. teeth; 5. a first gear; 6. a base; 7. a hydraulic oil tank; 8. a lug; 9. a second gear; 10. a third gear; 11. a first flow guide passage; 12. a second flow guide passage; 13. a sleeve; 14. a restrictor plate; 15. a flow-limiting rod; 16. a flow restriction orifice; 17. a limiting ring; 18. a guide tube; 19. an n-shaped groove; 20. adjusting a rod; 21. an adjusting block; 22. a nut; 23. an extension spring; 24. limiting ridges; 25. a one-way channel; 26. a one-way valve; 27. sealing the cover; 28. a coupling.
Detailed Description
The invention is further described with reference to the following figures and detailed description:
it should be noted that directional terms used in the following description such as "front", "back", "left", "right", "up", "down", "bottom" and "top" refer to directions in the drawings, and the terms "inner" and "outer" refer to directions toward and away from, respectively, the geometric center of a particular component.
As shown in fig. 1 to 7, a vertical elevator with slow-down brake comprises an outer elevator frame 1 and a car body 2, wherein guide rails 3 are arranged between two opposite inner side walls of the outer elevator frame 1 and the car body 2, the guide rails 3 are arranged along the height direction of the outer elevator frame 1, the guide rails 3 are fixedly connected to the inner side walls of the outer elevator frame 1, when only one side wall of the car body 2 in the prior art has a guide rail, and when the invention is used, the guide rail 3 in the invention and the guide rail of one side wall of the car body 2 in the prior art can not be replaced with each other, and the two guide rails 3 in the invention need to be arranged at the opposite positions of two sides of the car body 2; when the guide rails are oppositely arranged on the two side walls of the car body 2 in the prior art and the invention is used, the guide rails 3 in the invention can be omitted, the guide rails oppositely arranged on the two side walls of the car body 2 in the prior art are used for replacing the two guide rails 3 in the invention, teeth 4 are arranged on one side surface of the guide rails 3 facing the car body 2, and a slow-descending brake mechanism is arranged between the guide rails 3 and the car body 2;
the slow-descending brake mechanism comprises a first gear 5, a base 6 and a hydraulic oil tank 7, the front end and the rear end of the first gear 5 are connected to one side surface of the car body 2 facing the guide rail 3 through lugs 8, and the first gear 5 is meshed with teeth 4 on the guide rail 3;
the base 6 is a cuboid, the base 6 is fixedly connected with the car body 2, a first cavity and a second cavity are arranged in the base 6, the first cavity and the second cavity are horizontally arranged cylindrical cavities, the central axes of the first cavity and the second cavity are parallel to each other, the first cavity is positioned above the second cavity, the lower end of the first cavity is communicated with the upper end of the second cavity, the communication part of the lower end of the first cavity and the upper end of the second cavity is in smooth transition, a second gear 9 is arranged in the first cavity, the tooth top curved surface, the front end surface and the rear end surface of the second gear 9 are in sliding contact with the inner surface of the first cavity, the rear end of the second gear 9 is connected with a transmission shaft which penetrates through the base 6 and is connected with the first gear 5 through a coupling 28, a third gear 10 is arranged in the second cavity, the tooth top curved surface, the front end surface and the rear end surface of the third gear 10 are in sliding contact with the inner surface of the second cavity, in order to facilitate installation, the base 6 comprises a base body and a sealing cover 27, the front ends of the first cavity and the second cavity penetrate through the base body, the front end of the base body is provided with a sealing cover 27 for sealing the first cavity and the second cavity, the sealing cover 27 is fixedly connected with the base body through bolts, the lower end of the second gear 9 is meshed with the upper end of the third gear 10, the two ends of the third gear 10 are movably connected with the base 6, the base 6 is fixed on the car body 2, the hydraulic oil tank 7 is connected with the upper end of the base 6, the hydraulic oil tank 7 is a rectangular box body with an open upper end, an opening at the upper end of the hydraulic oil tank 7 is provided with a cover plate, the cover plate is detachably connected with the opening at the upper end of the hydraulic oil tank 7, the left end and the right end of the communication part of the first cavity and the second cavity are respectively communicated with a first flow guide channel 11 and a second flow guide channel 12, the first flow guide channel 11 and the second flow guide channel 12 are both upwards communicated with the hydraulic oil tank 7, and the upper end openings of the first flow guide channel 11 and the second flow guide channel 12 are both provided with a flow limiting mechanism positioned in the hydraulic oil tank 7, the flow limiting mechanism comprises a sleeve 13, a flow limiting plate 14 and flow limiting rods 15, the sleeve 13 is a circular pipe body, the lower end of the sleeve 13 is fixedly connected with the inner bottom surface of the hydraulic oil tank 7, a space is reserved between the upper end of the sleeve 13 and a cover plate of the hydraulic oil tank 7, the flow limiting plate 14 is arranged in the sleeve 13 and is a circular plate body, the outer peripheral wall of the flow limiting plate 14 is in sliding contact with the inner peripheral wall of the sleeve 13, a plurality of flow limiting holes 16 are formed in the flow limiting plate 14, a plurality of flow limiting rods 15 are fixed on the cover plate of the hydraulic oil tank 7, the sleeve 13 of the flow limiting mechanism at the upper end opening of the first flow guiding channel 11 covers the upper end opening of the first flow guiding channel 11, the sleeve 13 of the flow limiting mechanism at the upper end opening of the second flow guiding channel 12 is communicated with the second flow guiding channel 12, hydraulic oil is filled in the hydraulic oil tank 7, the liquid level of the hydraulic oil is higher than the upper end of the sleeve 13, when the actual operation speed of the car main body 2 is higher than the actual operation speed of the car main body 2, the flow limiting plate is higher than the flow limiting speed of the flow limiting mechanism, the flow limiting plate 13, the flow limiting mechanism is larger than the flow limiting holes 16, and the flow limiting mechanism, and the flow limiting plate 14 is started when the flow limiting holes 16, and the flow limiting mechanism flows through flow limiting holes 16, and the flow limiting mechanism.
The hydraulic oil tank 7 and the sleeve 13 are both made of transparent aluminum alloy.
The flow limiting rod 15 is a round rod body, the diameter of the flow limiting rod 15 is matched with the diameter of the flow limiting hole 16, the total sectional area of the flow limiting holes 16 is smaller than or equal to the sectional area of the first flow guide channel 11 or the second flow guide channel 12, and the sectional areas of the first flow guide channel 11 and the second flow guide channel 12 are the same.
A plurality of restricted flow holes 16 on the restricted flow board 14 all distribute along the archimedean spiral, and a plurality of restricted flow pole 15 are arranged to the inner end in proper order along the outer end of archimedean spiral, and every restricted flow pole 15 is coaxial relative with a restricted flow hole 16 of below respectively, the total amount of restricted flow pole 15 is less than the total amount of restricted flow hole 16, and is greater than two-thirds of the total amount of restricted flow hole 16, and the length of the restricted flow pole 15 of following the outside-in distribution of archimedean spiral reduces gradually, makes restricted flow hole and restricted flow pole easier processing and connection, reduces the difficulty and the unnecessary check-up time of man-hour, shortens processing duration, makes the speed reduction of car main part 2 have continuous and even effect, can not sudden deceleration, guarantees the safety of people or thing in the car main part 2.
The difference in height between the lower ends of two adjacent current-limiting rods 15 is 5mm, and when the car body 2 operates normally, the current-limiting plates 14 are located below the lower ends of all the current-limiting rods 15.
The upper ends of the first flow guide channel 11 and the second flow guide channel 12 are respectively communicated with the hydraulic oil tank 7 through a through hole on the inner bottom surface of the hydraulic oil tank 7, the upper end of the inner peripheral wall of the sleeve 13 is provided with a limiting ring 17, the outer ring of the limiting ring 17 is fixedly connected with the upper end of the inner peripheral wall of the sleeve 13, the limiting ring 17 is sleeved outside all the current-limiting rods 15, the hydraulic oil tank 7 is internally provided with a guide pipe 18 extending into the sleeve 13 through the inner ring of the limiting ring 17, the lower end of the guide pipe 18 penetrates through the current-limiting plate 14 and is fixedly connected to the inner bottom surface of the hydraulic oil tank 7 between the through hole and the sleeve 13, and the current-limiting plate 14 is in sliding contact with the guide pipe 18.
The lower end of each flow limiting rod 15 is located below the limiting ring 17, when the upper surface of the flow limiting plate 14 contacts the lower surface of the limiting ring 17, each flow limiting rod 15 penetrates through the corresponding flow limiting hole 16, because the flow limiting rods 15 are sequentially arranged towards the inner end along the outer end of the Archimedes spiral, each flow limiting rod 15 is coaxially opposite to one flow limiting hole 16 below, and the total number of the flow limiting rods 15 is less than the total number of the flow limiting holes 16 and more than two thirds of the total number of the flow limiting holes 16, only the flow limiting holes 16 which are located above one or more middle parts of the flow limiting plate 14 and have no corresponding flow limiting rod 15 are always in a vertical communication state.
The utility model discloses a hydraulic tank, including guide tube 18, adjusting lever 20, regulation pole 20, adjustable pole 20, adjusting lever 20 lower extreme is connected with both ends and stretches out n-shaped groove 19, and along n-shaped groove 19 gliding regulating block 21 from top to bottom, the upper end of adjusting lever 20 runs through the apron of hydraulic tank 7 and is connected with nut 22, the nut is rotatable spacing connection state with hydraulic tank 7's apron, for example shown in fig. 7: the nut top is provided with the limiting plate of cover outside adjusting lever 20, the limiting plate is the annular plate body of circle, the apron upper surface of hydraulic tank 7 is connected through the connecting rod at the limiting plate both ends, the nut is equipped with to the regulation pole 20 top spin between the apron upper surface of hydraulic tank 7 and the limiting plate, the cover is equipped with the compression spring who is compression state on the regulation pole 20 between the apron of nut and hydraulic tank 7, compression spring withholds nut 22 on the lower surface of limiting plate, the nut is restricted to be the rotation state between the apron of limiting plate and hydraulic tank 7, the limiting plate external diameter is greater than the nut internal diameter, is less than the inscribed circle diameter of nut, the limiting plate does not restrict the rotation of nut, be connected with the extension spring 23 of cover outside stand pipe 18 between regulating block 21 and the current-limiting plate 14.
Both sides that have tooth 4's a side on the guide rail 3 all are equipped with spacing stupefied 24, spacing stupefied 24 is protruding stupefied for following the setting of 3 direction of height of guide rail, and spacing stupefied 24 can prevent that first gear 5 from breaking away from with guide rail 3.
Slowly fall brake mechanism has four, and lateral wall respectively has two slowly to fall brake mechanism about car main part 2, lies in two slowly to fall brake mechanism with one side and all connects same guide rail 3, and the slowly brake mechanism that falls that lies in 2 both sides of car main part is symmetrical state.
The upper parts of the first flow guide channel 11 and the second flow guide channel 12 are respectively provided with a one-way channel 25, one end of the one-way channel 25 on the second flow guide channel 12 is communicated with the second flow guide channel 12, the other end of the one-way channel 25 on the first flow guide channel 11 is communicated with the first flow guide channel 11, the other end of the one-way channel 25 on the second flow guide channel 12 is communicated with the hydraulic oil tank 7 outside the sleeve 13, a one-way valve 26 is arranged in the one-way channel 25, the inlet end of the one-way valve 26 faces the hydraulic oil tank 7, as the total sectional area of the plurality of flow limiting holes 16 is smaller than or equal to the sectional area of the first flow guide channel 11 or the second flow guide channel 12, the sectional areas of the first flow guide channel 11 and the second flow guide channel 12 are the same, when the first flow guide channel 11 sucks hydraulic oil and the second flow guide channel 12 discharges the hydraulic oil, the lubricating oil conveyed by the rotation of the second gear 9 and the third gear 10 forms downward pressure in the second flow guide channel 12, the first flow guide channel 11 forms negative pressure in the first flow guide channel 11, the one-way channel 25 can be supplemented with the hydraulic oil in the first flow guide channel 11, the hydraulic oil discharging state can be eliminated, and the hydraulic oil tank 12 can be matched with the hydraulic oil regulating rod 12, so that the hydraulic oil tank 12 can be used in the hydraulic oil tank 12, and the hydraulic oil regulating rod 12, the hydraulic oil tank 12, and the hydraulic oil regulating rod can be used for regulating rod.
Before the slow-descending brake device is used, the starting speed of one slow-descending brake mechanism is adjusted, and the method comprises the following specific steps: firstly, adjusting a flow limiting mechanism on the right side of the two flow limiting mechanisms, rotating a nut 22 on a hydraulic oil tank 7 to enable the lower end of an adjusting rod 20 to drive an adjusting block 21 to contact the inner bottom surface of the hydraulic oil tank 7, then, according to the running speed of the elevator under normal conditions, connecting a speed-adjustable motor at the rear end of a first gear 5 before the elevator main body 2 is not connected, using the speed-adjustable motor to drive the first gear 5 to rotate clockwise, enabling the linear speed of the first gear 5 to be equal to 1.3 times of the normal running speed of the elevator, for example, the running speed of the elevator is 1m/s, enabling the linear speed of the first gear 5 to be 1.3m/s, at the moment, enabling the first gear 5 to drive a second gear 9 to rotate, enabling the second gear 9 and a third gear 10 to be meshed and rotate together, when the second gear 9 and the third gear 10 rotate, conveying hydraulic oil at the left end where the first cavity is communicated with the second cavity to the right end where the first cavity is communicated with the second cavity to enter a conveying sleeve 13 through a second flow guiding channel 12, and the flow limiting plate 14 flows out of the hydraulic oil returning to the flow limiting plate 16, and the hydraulic oil can flow limiting plate 14 in the hydraulic oil flowing through the flow limiting plate in the hydraulic oil limiting plate in the process, and the hydraulic oil flow limiting plate, and the hydraulic oil can be known as an equation: the pressure of the hydraulic oil below the restrictor plate 14 is greater than the pressure above the restrictor plate 14, and as the flow rate of the hydraulic oil flowing upward through the restrictor holes 16 increases, the pressure difference between the pressure below the restrictor plate 14 and the pressure above the restrictor plate 14 also increases, and the pressure difference between the pressure below the restrictor plate 14 and the pressure above the restrictor plate 14 causes the restrictor plate 14 to move upward against its own gravity and the elastic force of the extension spring 23, and when the linear speed of rotation of the first gear 5 is stabilized at 1.3 times the normal operating speed of the elevator, the restrictor plate 14 is stabilized at a certain height within the sleeve 13, because the flow rate within the second flow guide channel 12 does not change any more, the flow rate of the hydraulic oil flowing upward from the restrictor holes 16 is the same as the flow rate within the second flow guide channel 12, and therefore the extension length of the spring does not change any more, at this time, the nut 22 is rotated in reverse direction, the adjusting rod 20 drives the adjusting block 21 to move upward, the distance between the restrictor plate 14 and the lower end of the restrictor rod 15 is changed, the upper surface of the restrictor plate 14 and the lower end of the longest restrictor rod 15 of the plurality of the restrictor rods 15 are on the same horizontal plane, and the upper surface of the restrictor rod of the restrictor plate 14 and the throttle mechanism is removed by the above-adjusting method, and the same horizontal plane of the speed-adjusting mechanism is completed; and then, the rest slow-descending brake mechanisms are sequentially adjusted according to the adjusting method, after all the slow-descending brake mechanisms are completely adjusted, the starting speed of the slow-descending brake mechanisms is 1.3 times of the normal running speed of the elevator at the moment, the slow-descending brake mechanisms are connected with the car main body 2, the first gear 5 is meshed with the teeth 4 on the guide rail 3, and the base 6 is fixedly connected with the car main body 2.
In the using process, when the car main body 2 normally runs, because the normal running speed of the car main body 2 is lower than the starting speed of the slow-falling braking mechanism, the flow rate of the hydraulic oil conveyed by the second gear 9 and the third gear 10 is smaller than that of the hydraulic oil conveyed by the second gear 9 and the third gear 10 when the slow-falling braking mechanism is started, and the flow limiting holes 16 corresponding to the flow limiting rods 15 in the plurality of flow limiting holes 16 cannot be blocked by the flow limiting rods 15, so that the running speed of the car main body 2 cannot be limited.
When the elevator is out of control, the running speed of the car body 2 is suddenly increased in a short time, taking the steel wire rope breaking the free falling body of the car body 2 as an example, the rotating speed of the first gear 5 is increased, the flow rate of hydraulic oil conveyed by the second gear 9 and the third gear 10 is increased, when the running speed of the car body 2 is close to 1.3 times of the normal running speed, the upper surface of the restrictor plate 14 is close to the lower end of the longest flow restricting rod 15 in the flow restricting rods 15, at this time, the flow restricting holes 16 corresponding to the flow restricting rods 15 in the flow restricting holes 16 are not blocked by the flow restricting rods 15, so that the running speed of the car body 2 is not restricted, when the running speed of the car body 2 exceeds 1.3 times of the normal running speed, the flow restricting plate 14 moves upwards in the process, the flow restricting rods 15 sequentially extend into the flow restricting holes 16 according to different heights of the lower ends, when one flow restricting rod 15 extends into the flow restricting plate 16, because the flow restricting rod 15 blocks the flow restricting rod 16, the flow restricting rod 14, the flow restricting passage 14 can further reduce the pressure of the hydraulic oil flowing through the flow restricting holes 14 and the flow restricting rod 9, and the flow restricting ring 14, when the flow restricting rod 15 is further reduced, the hydraulic oil flows into the flow restricting holes 14, and the flow restricting holes 14, on the flow restricting plate 10, on the other hand, when the flow restricting rod 15 and the flow restricting plate 2 and the flow restricting holes 14 are further reduce the flow restricting gear 9, the flow restricting holes 14, all the flow-limiting rods 15 are already extended into the corresponding flow-limiting holes 16 below, only the flow-limiting holes 16 above which the flow-limiting rods 15 are not arranged (the flow-limiting holes 16 not arranged corresponding to the flow-limiting rods 15 are located at the inner ends of the archimedean spiral, that is, in the middle of the flow-limiting plate 14) can still be used for flowing hydraulic oil, while the pressure of the hydraulic oil below the flow-limiting plate 14 is maximized, the rotation speeds of the second gear 9 and the third gear 10 are minimized, the speed of the car body 2 is minimized, because the descending speed of the car body 2 is slowed, the linear speed of the first gear 5 is also slowed, the flow rates of the hydraulic oil delivered by the second gear 9 and the third gear 10 and the flow rate of the hydraulic oil flowing through the flow-limiting holes 16 are equalized, but because the cross-sectional flow area of the hydraulic oil has been reduced to less than one third of the original total flow-through area, the rotation speeds of the second gear 9 and the third gear 10 are still lower than the speed at which the car body 2 normally operates, that the car body 2 operates slower than the normal operation speed of the car body 2, the elevator does not need to be pulled again to maintain the first gear 1, and the third gear 5 is not needed to maintain the elevator.
The preferred embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various modifications can be made to the technical solution of the present invention within the scope of disclosure without departing from the spirit of the present invention.
Claims (8)
1. A vertical elevator with slow-descending brake comprises an outer elevator support (1) and a car body (2), wherein a guide rail (3) is arranged between two opposite inner side walls of the outer elevator support (1) and the car body (2), and is characterized in that teeth (4) are arranged on one side surface of the guide rail (3) facing the car body (2), and a slow-descending brake mechanism is arranged between the guide rail (3) and the car body (2);
the slow-descending brake mechanism comprises a first gear (5), a base (6) and a hydraulic oil tank (7), wherein the first gear (5) is meshed with teeth (4) on the guide rail (3);
a first cavity and a second cavity are arranged in the base (6), the lower end of the first cavity is communicated with the upper end of the second cavity, a second gear (9) is arranged in the first cavity, the second gear (9) is in sliding contact with the inner surface of the first cavity, the rear end of the second gear (9) is connected with a transmission shaft which penetrates through the base (6) and is connected with the first gear (5) through a coupling (28), a third gear (10) is arranged in the second cavity, the third gear (10) is in sliding contact with the inner surface of the second cavity, the lower end of the second gear (9) is meshed with the upper end of the third gear (10), the base (6) is fixed on the car body (2), the hydraulic oil tank (7) is connected to the upper end of the base (6), a first flow guide channel (11) and a second flow guide channel (12) are respectively arranged at the left end and the right end of the communication position of the first cavity and the second cavity, the first flow guide channel (11) and the second flow guide channel (12) are respectively communicated with the hydraulic oil tank (7), the upper end of the first flow guide channel (11) and the second flow guide channel (12) are respectively communicated with the hydraulic oil tank (7), a flow guide channel (14), a flow limiting sleeve (13) is arranged at the upper end of the flow limiting plate (14), a flow limiting mechanism (14) is arranged in the hydraulic oil tank (14), the flow limiting mechanism (14) and a flow limiting mechanism (13) is arranged in the flow limiting mechanism (13) and a flow limiting sleeve (13) is arranged in the flow limiting mechanism (13) which is arranged in the hydraulic oil tank (7), a plurality of flow-limiting rods (15) are fixed on a cover plate of the hydraulic oil tank (7);
the flow limiting plates (14) are provided with a plurality of flow limiting holes (16) which are distributed along an Archimedes spiral, a plurality of flow limiting rods (15) are sequentially arranged along the outer end of the Archimedes spiral towards the inner end, each flow limiting rod (15) is coaxially opposite to one flow limiting hole (16) below, the total number of the flow limiting rods (15) is less than the total number of the flow limiting holes (16) and more than two thirds of the total number of the flow limiting holes (16), and the lengths of the flow limiting rods (15) distributed along the Archimedes spiral from outside to inside are gradually reduced;
the upper portions of the first flow guide channel (11) and the second flow guide channel (12) are provided with one-way channels (25), one end of each one-way channel (25) on the second flow guide channel (12) is communicated with the second flow guide channel (12), the other end of each one-way channel (25) is upwards communicated with a hydraulic oil tank (7) outside the sleeve (13), one end of each one-way channel (25) on the first flow guide channel (11) is communicated with the first flow guide channel (11), the other end of each one-way channel is upwards communicated with the hydraulic oil tank (7) outside the sleeve (13), a one-way valve (26) is arranged in each one-way channel (25), and the inlet end of each one-way valve (26) faces towards the hydraulic oil tank (7).
2. The vertical elevator with slow-descending brake as claimed in claim 1, characterized in that the diameter of the flow-limiting rod (15) is matched with the diameter of the flow-limiting hole (16), the total cross-sectional area of the flow-limiting holes (16) is smaller than or equal to the cross-sectional area of the first flow-guiding channel (11) or the second flow-guiding channel (12), and the cross-sectional areas of the first flow-guiding channel (11) and the second flow-guiding channel (12) are the same.
3. The vertical lift ladder with slow descent brake as claimed in claim 1, wherein the lower ends of two adjacent restrictor bars (15) differ in height by 5mm, and the restrictor plate (14) is located below the lower ends of all the restrictor bars (15).
4. The vertical elevator with the slow-descending brake as claimed in claim 1, wherein the upper ends of the first flow guide channel (11) and the second flow guide channel (12) are respectively communicated with the hydraulic oil tank (7) through a through hole in the inner bottom surface of the hydraulic oil tank (7), the upper end of the inner peripheral wall of the sleeve (13) is provided with a limiting ring (17), the limiting ring (17) is sleeved outside all the flow limiting rods (15), a guide pipe (18) extending into the sleeve (13) through the inner ring of the limiting ring (17) is arranged in the hydraulic oil tank (7), and the lower end of the guide pipe (18) penetrates through the flow limiting plate (14) and is fixedly connected to the inner bottom surface of the hydraulic oil tank (7) between the through hole and the sleeve (13).
5. The vertical elevator with slow descent brake according to claim 4, wherein each of the flow-restricting rods (15) has a lower end located below the stop collar (17), and each of the flow-restricting rods (15) passes through the corresponding flow-restricting hole (16) when the upper surface of the flow-restricting plate (14) contacts the lower surface of the stop collar (17).
6. The vertical elevator with the slow descending brake as claimed in claim 4, wherein the guide tube (18) is a round tube, the lower end of the guide tube (18) is provided with an n-shaped groove (19) with a downward opening, an adjusting rod (20) is arranged in the guide tube (18), the adjusting rod (20) is a rod body with external threads, the lower end of the adjusting rod (20) is connected with an adjusting block (21) with two ends extending out of the n-shaped groove (19) and sliding up and down along the n-shaped groove (19), the upper end of the adjusting rod (20) penetrates through the cover plate of the hydraulic oil tank (7) and is connected with a nut (22), the nut (22) and the cover plate of the hydraulic oil tank (7) are in a rotatable limiting connection state, and an extension spring (23) sleeved outside the guide tube (18) is connected between the adjusting block (21) and the current limiting plate (14).
7. The vertical elevator with the slow-descending brake as claimed in claim 1, wherein the two sides of the side surface of the guide rail (3) with the teeth (4) are provided with limiting ribs (24), and the limiting ribs (24) are convex ribs arranged along the height direction of the guide rail (3).
8. The vertical elevator with slow-falling brake as claimed in claim 1, wherein the number of the slow-falling brake mechanisms is four, the left and right side walls of the car body (2) are respectively provided with two slow-falling brake mechanisms, and the two slow-falling brake mechanisms positioned on the same side are connected with the same guide rail (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211229343.6A CN115303910B (en) | 2022-10-08 | 2022-10-08 | Vertical lift ladder with slow-descending brake |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211229343.6A CN115303910B (en) | 2022-10-08 | 2022-10-08 | Vertical lift ladder with slow-descending brake |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115303910A CN115303910A (en) | 2022-11-08 |
| CN115303910B true CN115303910B (en) | 2023-01-06 |
Family
ID=83866528
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211229343.6A Active CN115303910B (en) | 2022-10-08 | 2022-10-08 | Vertical lift ladder with slow-descending brake |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115303910B (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1359384A (en) * | 1973-09-17 | 1974-07-10 | Kent A F | Intertiacontrolled fail-safe vehicle brake |
| CN1942383A (en) * | 2005-04-28 | 2007-04-04 | 莱丝技术有限公司 | Brake apparatus for the elebator |
| CN103466409A (en) * | 2013-09-25 | 2013-12-25 | 刘叶雄 | Standby braking system for elevator |
| CN104048835A (en) * | 2014-06-10 | 2014-09-17 | 东北大学 | Automobile brake simulation testing platform |
| CA3024838A1 (en) * | 2016-05-03 | 2017-11-09 | Wabi Iron & Steel Corp. | Emergency braking system for mine shaft conveyance |
| CN207618938U (en) * | 2017-12-21 | 2018-07-17 | 泰华伟业科技有限责任公司 | Automatic speed-limiting variable damping device |
| CN109132772A (en) * | 2018-08-29 | 2019-01-04 | 合肥市迅立达电梯有限公司 | A kind of elevator overspeed protecting device |
| CN209291745U (en) * | 2018-09-04 | 2019-08-23 | 李明 | The anti-fall smooth rate apparatus of elevator |
| CN113264433A (en) * | 2021-06-28 | 2021-08-17 | 曾昭达 | Load balancing energy balancing elevator |
| CN113526289A (en) * | 2021-07-13 | 2021-10-22 | 广东莱茵电梯有限公司 | Rescue equipment for elevator emergency escape and use method |
-
2022
- 2022-10-08 CN CN202211229343.6A patent/CN115303910B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1359384A (en) * | 1973-09-17 | 1974-07-10 | Kent A F | Intertiacontrolled fail-safe vehicle brake |
| CN1942383A (en) * | 2005-04-28 | 2007-04-04 | 莱丝技术有限公司 | Brake apparatus for the elebator |
| CN103466409A (en) * | 2013-09-25 | 2013-12-25 | 刘叶雄 | Standby braking system for elevator |
| CN104048835A (en) * | 2014-06-10 | 2014-09-17 | 东北大学 | Automobile brake simulation testing platform |
| CA3024838A1 (en) * | 2016-05-03 | 2017-11-09 | Wabi Iron & Steel Corp. | Emergency braking system for mine shaft conveyance |
| CN207618938U (en) * | 2017-12-21 | 2018-07-17 | 泰华伟业科技有限责任公司 | Automatic speed-limiting variable damping device |
| CN109132772A (en) * | 2018-08-29 | 2019-01-04 | 合肥市迅立达电梯有限公司 | A kind of elevator overspeed protecting device |
| CN209291745U (en) * | 2018-09-04 | 2019-08-23 | 李明 | The anti-fall smooth rate apparatus of elevator |
| CN113264433A (en) * | 2021-06-28 | 2021-08-17 | 曾昭达 | Load balancing energy balancing elevator |
| CN113526289A (en) * | 2021-07-13 | 2021-10-22 | 广东莱茵电梯有限公司 | Rescue equipment for elevator emergency escape and use method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN115303910A (en) | 2022-11-08 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102070059A (en) | Hydraulic speed limiting elevator | |
| CN110407060B (en) | Counterweight weight adjustable unpowered elevator | |
| CN115303910B (en) | Vertical lift ladder with slow-descending brake | |
| JP2014512319A (en) | Drive unit for transporting loads and persons, and load and person transport device having such a drive unit | |
| CN110585614B (en) | Wisdom building escape device | |
| CN210113315U (en) | Gate lifting mechanism for hydraulic engineering | |
| CN110106839B (en) | Anticorrosive formula gate convenient to open and resistance to compression | |
| CN112408278A (en) | Emergency braking safety protection device for elevator | |
| CN210029685U (en) | Door machine for sightseeing elevator | |
| CN213059750U (en) | Passenger elevator without machine room and convenient to rescue | |
| KR200191051Y1 (en) | A hydraulic for a grab bucket | |
| CN203189372U (en) | Pneumatic control reversing valve | |
| CN220433569U (en) | Energy-saving rack driving gate with counterweight | |
| CN109095322B (en) | Novel screw elevator | |
| CN111320061A (en) | Elevator driving mechanism capable of ascending and descending by utilizing air pressure and elevator | |
| CN111851429A (en) | Novel sluice structure | |
| CN208631906U (en) | A kind of adjustable counterweight of elevator device | |
| WO2022052291A1 (en) | Elevator hoistway arrangement structure | |
| CN220394447U (en) | Counterweight energy-saving screw drive gate | |
| CN217233387U (en) | Low-rise building elevator well with reserve climbing structure | |
| CN213326240U (en) | Household elevator shaft | |
| CN2668164Y (en) | Hydraulic-governing slow-lowering chain ladder escaping device | |
| KR200425947Y1 (en) | Hydrostatic Pin-Jack Type Floodgate Winch | |
| CN219099965U (en) | Gate lifting device for water conservancy and hydropower | |
| CN211283333U (en) | Elevator diverting pulley fixing device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20230823 Address after: Room 1331, Block D, Main Building, No. 2 North Nong Road, Zhuxinzhuang, Huilongguan Town, Changping District, Beijing 102200 Patentee after: BEIJING GELINTEKE GREEN ENERGY TECHNOLOGY Co.,Ltd. Address before: 453003 Talent Apartment of Henan Institute of Technology, No. 699, Pingyuan Road (East Section), Xinxiang City, Henan Province Patentee before: HENAN INSTITUTE OF TECHNOLOGY |
|
| TR01 | Transfer of patent right |