CN212050074U

CN212050074U - Accurate leveling device of heavy-load goods elevator

Info

Publication number: CN212050074U
Application number: CN201922411024.7U
Authority: CN
Inventors: 张凡
Original assignee: Fujian Kuaike Urban Construction Additional Elevator Co ltd
Current assignee: Fujian Kuaike Urban Construction Additional Elevator Co ltd
Priority date: 2019-12-28
Filing date: 2019-12-28
Publication date: 2020-12-01
Anticipated expiration: 2029-12-28

Abstract

The utility model provides an accurate flat bed device of heavy load goods lift, put up and set up the car in the car frame including the car, the car puts up inboard top and bottom through the spring respectively with the top and the bottom fixed connection of car, the front side and the rear side of car frame bottom are fixed with the spiral elevator, the screw rod top of spiral elevator and the bottom plate lower surface contact of car, car frame bottom still fixedly connected with can drive the motor that the spiral elevator screw rod goes up and down, the lateral part of car frame is fixed with position sensor, the utility model discloses simple structure passes through the lift control car of spiral elevator and puts up micro elevating movement for the car, is favorable to the accurate flat bed of door around the car, and the car frame keeps motionless during the flat bed, can need not to loosen the host computer band-type brake during the flat bed of leveling again, improves the security that the flat bed of elevator docked.

Description

Accurate leveling device of heavy-load goods elevator

Technical Field

The utility model relates to an accurate flat bed device of heavy load goods lift.

Background

With the continuous acceleration of the urbanization process, the building space of the city is continuously extending towards the vertical direction, and the floors of modern factories, manufacturing workshops of shopping centers, laboratories, storehouses, logistics centers and the like are higher and higher. In order to solve the problem of vertical transportation, the area of an elevator car needs to be increased, the load capacity needs to be increased, and certain requirements are also imposed on the running speed of the elevator. Therefore, the demand of the medium-high speed oversized elevator car heavy-load goods elevator is increased.

The car of a traction type heavy-duty cargo lift is suspended by a wire rope and relatively stopped in a hoistway to load and unload passengers and articles. However, the steel cord is more or less elastic, the higher the floor, the longer the steel cord, the greater the final total deformation. If the weight of the car is changed greatly in the loading or unloading process, the car is easy to vibrate vertically, the elevator car moves downwards or upwards, the bottom of the car and a landing sill are not on the same plane, inconvenience can be brought to the forklift, an electric vehicle, a trolley and other vehicles to get in or out of the car, and even potential safety hazards can be caused to people getting in or out of the car.

The traditional elevator automatic leveling is realized by inducing leveling through a magnetism isolating plate and detecting through a position detector. When the downward movement distance of the car exceeds a specified value, the control system controls the brake of the main machine to be opened, the main machine rotates to lift the car, and the car reaches the leveling layer again. However, the method has certain potential safety hazard, and after the band-type brake is opened, in case that the moment of the main machine is insufficient, the risks of reversing, even sliding and the like occur. Especially heavy load goods lift tows than very big messenger's wire rope very long, and along with wire rope skids and the extension volume increase, the inaccurate phenomenon of flat bed takes place occasionally, does not reach more ideal precision all the time.

Disclosure of Invention

The utility model discloses improve above-mentioned problem, promptly the to-be-solved technical problem of the utility model is that current heavily loaded goods lift is because the load is great appears railway carriage or compartment bottom and room door sill not in the coplanar easily, and it is inconvenient that the car of probably cominging in and going out for the vehicle that enters into goods lift brings, and the flat bed mode precision of traditional elevator is inaccurate and the security is poor.

The utility model discloses specifically adopt following technical scheme: the utility model provides an accurate flat bed device of heavy load goods lift, includes the car frame and sets up the car in the car frame, the inboard top of car frame and bottom through the spring respectively with the top and the bottom fixed connection of car, the front side and the rear side of car frame bottom are fixed with the spiral elevator, the screw rod top of spiral elevator and the bottom plate lower surface contact of car, car frame bottom still fixedly connected with can drive the motor that the spiral elevator screw rod goes up and down, the lateral part of car frame is fixed with position sensor.

Further, the car frame comprises a car frame upper beam and a car frame lower beam which are arranged at the top, a car frame straight beam which is longitudinally arranged is fixedly connected between the car frame upper beam and the car frame lower beam, and the position sensor is fixed on the side portion of the car frame.

Further, the car frame underbeam comprises a main car frame underbeam and secondary car frame underbeams arranged on the front side and the rear side of the main car frame underbeam, the main car frame underbeam and the secondary car frame underbeams are fixedly connected with each other through car frame side beams at two ends respectively, a buffer plate is fixedly connected between the main car frame underbeams, a transmission mounting frame underbeam is arranged on one side of the secondary car frame underbeams, which deviates from the main car frame underbeams, a connecting plate is fixedly connected between the transmission mounting frame underbeams and the secondary car frame underbeams, and the lower end of a spring fixedly connected with the lower part of the car is fixed on the connecting plate.

Furthermore, the middle part of one side of the secondary car frame lower beam, which deviates from the main car frame lower beam, is fixedly connected with a motor mounting plate and a pair of elevator mounting plates, and the motor mounting plate is positioned between the elevator mounting plates.

Furthermore, the car frame straight beam comprises a main car frame straight beam fixed on two sides of the main car underbeam and a secondary car frame straight beam fixed on two sides of the secondary car underbeam, and guide shoe mounting plates are fixed on the main car frame straight beam and the secondary car frame straight beam.

Further, the motor is fixed on the motor mounting plate, the spiral elevator is fixed on the elevator mounting plate, the spiral elevators are fixed on the front side and the rear side of the bottom of the car frame and are paired, the spiral elevators extend towards the middle of the car frame and can drive the transmission shafts of the screw rods to rotate, and the transmission shafts on the two sides of the output shaft of the motor can synchronously rotate to realize synchronous lifting of the pair of spiral elevators on the same side.

Furthermore, the two ends of the front side and the rear side of the bottom of the car frame are fixed with car frame bottom rope wheels of the car frame for winding the steel wire rope.

Further, the number of the position sensors is more than 2.

Drawings

Fig. 1 is a schematic view of the longitudinal section structure of the car frame and the car of the present invention.

Fig. 2 is a schematic view of the cross-section a-a of fig. 1 according to the present invention.

In the figure: 1. the elevator comprises a car bottom plate 2, a connecting plate 3, a spiral elevator 4, a car frame bottom rope pulley 5, an elevator mounting plate 6, a motor 7, a motor mounting plate 8, a steel wire rope 9, a car frame lower beam 10, a transmission shaft 11, a spring 12, a car frame straight beam 13, a car frame upper beam 14, a position sensor 301.302, a spiral elevator 303.304 at the rear side, a spiral elevator 601 at the front side, a motor 602 at the rear side, a motor 901 at the front side, a secondary car frame lower beam 902, a main car frame lower beam 903, a transmission mounting frame lower beam 904, a car frame side beam 905, a main car frame straight beam 906, a secondary car frame straight beam 907, a guide shoe mounting plate 908 and a buffer plate.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

As shown in fig. 1-2, including the car frame and set up the car in the car frame, the inboard top of car frame and bottom through spring 11 respectively with the top and the bottom fixed connection of car, the front side and the rear side of car frame bottom are fixed with spiral elevator 3, the screw rod top of spiral elevator 3 and the bottom plate lower surface contact of car, car frame bottom still fixedly connected with can drive the motor 6 that spiral elevator 3 screw rod goes up and down, the lateral part of car frame is fixed with position sensor.

In this embodiment, the car frame includes a car frame upper beam 13 and a car frame lower beam 9 on the top, a car frame straight beam 12 longitudinally disposed is fixedly connected between the car frame upper beam 13 and the car frame lower beam 9, the position sensor is fixed to a side portion of the car frame, the car frame lower beam 9 includes a main car frame lower beam 902 and secondary car frame lower beams 901 disposed on front and rear sides of the main car frame lower beam 902, two ends of the main car frame lower beam 902 and two ends of the secondary car frame lower beam 901 are respectively fixedly connected through car frame side beams 904, a buffer plate 908 is fixedly connected between the main car frame lower beams 902, one side of the secondary car frame lower beam 901 departing from the main car frame lower beam 902 is fixedly connected with a connecting plate 2, and a lower end of a spring 11 fixedly connected to the lower portion of the car is fixed to the connecting plate 2.

In the embodiment, the transmission systems of the compensation device are intensively distributed below the front part and the rear part of the car bottom plate 1, the car bottom plate is a through type door, the car bottom plate is far away from the center of the car, and the excellent re-leveling effect is obtained. The transmission mounting frame lower beam 903 is parallel to the secondary car frame lower beam 901 and located on the outer side of the secondary car frame lower beam 901, the car frame lower beam 9 and the upper surface of the mounting frame lower beam are welded into a whole through the connecting plate 2, the elevator mounting plate 5 and the motor mounting plate 7 are welded to the lower surfaces of the car frame lower beam 9 and the mounting frame lower beam, and the motor 6 mounting plate is located between the elevator mounting plates 5.

A spring 11 is fixed on the upper surface of the connecting plate 2 and is connected with the car bottom plate 1; the spiral elevator 3 is fixedly arranged on the upper surface of the elevator mounting plate 5, the motor is fixedly arranged on the upper surface of the motor mounting plate 7, a flange plate is fixed at the top end of the lifting screw rod, and the surface of the lift car bottom plate 1 is contacted with the flange plate; the front side and the rear side of the bottom of the car frame are fixedly provided with a pair of spiral lifters 3 and a pair of lifter mounting plates 5, the spiral lifters 3, namely screw lifters, are related in the embodiment, the spiral lifters 3 extend towards the middle part to form transmission shafts 10 capable of driving screws to rotate, and the transmission shafts 10 on the two sides are driven by an output shaft of a motor to synchronously rotate to realize synchronous lifting of the pair of spiral lifters 3 on the same side.

In this embodiment, the car frame straight beam 12 includes a main car frame straight beam 905 fixed to two sides of the main car underbeam and a secondary car frame straight beam 906 fixed to two sides of the secondary car underbeam, and the guide shoe mounting plates 907 are fixed to the main car frame straight beam 905 and the secondary car frame straight beam 906.

Furthermore, the two ends of the front side and the rear side of the bottom of the car frame are fixed with car frame bottom rope wheels 4 of the car frame for winding the steel wire rope 8.

When the elevator car frame works, the upper end and the lower end of the car frame are respectively connected with the upper end and the lower end of the car through spring structures, and because the elasticity of the spring 11 is large enough, the flange plate at the top end of the lifting screw rod is always in surface contact with the car bottom plate 1, namely the car bottom plate 1 is almost lifted synchronously with the lifting screw rod of the spiral elevator 3, and meanwhile, the spring 11 has good buffering effect; when the elevator arrives at the flat bed, the position sensor 14 starts to measure whether the car is higher than or lower than the flat bed position (namely whether the top of the car door sill is flush with the top of the landing door sill), so that signals are fed back to the control module through A/D conversion, a command of positive rotation or negative rotation and the number of rotation turns is sent to the motor through operation, the motor outputs power, the screw rod of the spiral elevator 3 is driven to move up and down through the transmission shaft 10, and the car moves up or descends to the flat bed position. The fine motion of car floor has realized the altitude mixture control of car, need not adjust the car frame height, reaches the effect of accurate flat bed.

The invention sets 2 sets of load settlement compensation devices composed of a motor, a spiral lifter 3 and the like respectively below the front part and the rear part of a car bottom plate 1. Position sensor sets up 2 or more than 2, the real-time status of more accurate reflection car flat bed, and after control module obtained feedback signal, 2 independent motors send the instruction of different numbers of revolutions around to through the operation, are favorable to the accurate flat bed of door around the car. This is very meaningful to super large car heavy load freight elevator, can greatly reduced fork truck, electric motor car, handcart come in and go out the car and go out not to get into the predicament or the inconvenient probability of business turn over, also can avoid the driver and crew to trip at the elevator edge.

Any technical solution disclosed in the present invention is, unless otherwise stated, disclosed a numerical range if it is disclosed, and the disclosed numerical range is a preferred numerical range, and any person skilled in the art should understand that: the preferred ranges are merely those values which are obvious or representative of the technical effect which can be achieved. Because numerical value is more, can't be exhaustive, so the utility model discloses just disclose some numerical values with the illustration the technical scheme of the utility model to, the numerical value that the aforesaid was enumerated should not constitute right the utility model discloses create the restriction of protection scope.

The utility model discloses if disclose or related to mutual fixed connection's spare part or structure, then, except that other the note, fixed connection can understand: a detachable fixed connection (for example using bolts or screws) is also understood as: non-detachable fixed connections (e.g. riveting, welding), but of course, fixed connections to each other may also be replaced by one-piece structures (e.g. manufactured integrally using a casting process) (unless it is obviously impossible to use an integral forming process).

In addition, the terms used in any aspect of the present disclosure as described above to indicate positional relationships or shapes include similar, analogous, or approximate states or shapes unless otherwise stated.

The utility model provides an arbitrary part both can be assembled by a plurality of solitary component parts and form, also can be the solitary part that the integrated into one piece technology was made.

Finally, it should be noted that the above embodiments are only used for illustrating the technical solutions of the present invention and not for limiting the same; although the present invention has been described in detail with reference to preferred embodiments, it should be understood by those skilled in the art that: the invention can be modified or equivalent substituted for some technical features; without departing from the spirit of the present invention, it should be understood that the scope of the claims is intended to cover all such modifications and variations.

Claims

1. Accurate leveling device of heavy load goods lift, its characterized in that includes the car frame and sets up the car in the car frame, the inboard top of car frame and bottom through the spring respectively with the top and the bottom fixed connection of car, the front side and the rear side of car frame bottom are fixed with the spiral elevator, the screw rod top of spiral elevator and the bottom plate lower surface contact of car, car frame bottom still fixedly connected with can drive the motor that the spiral elevator screw rod goes up and down, the lateral part of car frame is fixed with position sensor.

2. The accurate leveling device of the heavy-duty cargo lift according to claim 1, wherein the car frame comprises a top car frame upper beam and a top car frame lower beam, a longitudinally arranged car frame straight beam is fixedly connected between the top car frame upper beam and the top car frame lower beam, and the position sensor is fixed on the side part of the car frame.

3. The accurate leveling device of heavy-duty cargo lift according to claim 1, wherein the car frame underbeam comprises a main car frame underbeam and secondary car frame underbeams arranged on the front side and the rear side of the main car frame underbeam, the main car frame underbeam and the secondary car frame underbeams are fixedly connected through car frame side beams at two ends respectively, a buffer plate is fixedly connected between the main car frame underbeams, a transmission mounting frame underbeam is arranged on one side of the secondary car frame underbeams, which deviates from the main car frame underbeams, a connecting plate is fixedly connected between the transmission mounting frame underbeams and the secondary car frame underbeams, and the lower end of a spring fixedly connected with the lower parts of the cars is fixed on the connecting plate.

4. The accurate leveling device of the heavy-duty freight elevator as claimed in claim 3, wherein a motor mounting plate and a pair of elevator mounting plates are fixedly connected to a middle portion of a side of the secondary car frame underbeam facing away from the primary car frame underbeam, and the motor mounting plate is located between the pair of elevator mounting plates.

5. The accurate leveling device of the heavy-duty cargo lift according to claim 3, wherein the car frame straight beams comprise main car frame straight beams fixed on both sides of the main car underbeam and secondary car frame straight beams fixed on both sides of the secondary car underbeam, and the guide shoe mounting plates are fixed on the main car frame straight beams and the secondary car frame straight beams.

6. The precise leveling device of the heavy-duty cargo lift according to claim 3, wherein the motor is fixed to a motor mounting plate, the spiral elevator is fixed to an elevator mounting plate, the pair of spiral elevators is fixed to the front side and the rear side of the bottom of the car frame, the spiral elevator extends toward the middle to form a transmission shaft capable of driving the screw to rotate, and the output shaft of the motor drives the transmission shafts on the two sides to synchronously rotate so as to realize synchronous lifting of the pair of spiral elevators on the same side.

7. The accurate leveling device of the heavy-duty cargo lift according to claim 3, wherein the two ends of the front side and the rear side of the bottom of the car frame are fixed with car frame bottom rope wheels of the car frame for winding the steel wire rope.

8. The precise leveling device of a heavy-duty freight elevator according to claim 3, wherein the number of the position sensors is more than 2.