CN111776898A

CN111776898A - Elevator with adjustable load capacity and running speed

Info

Publication number: CN111776898A
Application number: CN202010601948.8A
Authority: CN
Inventors: 费雪强; 杨建华; 吴国良
Original assignee: Zhejiang Fujimei Elevator Co ltd
Current assignee: Zhejiang Fujimei Elevator Co ltd
Priority date: 2020-06-29
Filing date: 2020-06-29
Publication date: 2020-10-16
Anticipated expiration: 2040-06-29
Also published as: CN111776898B

Abstract

The invention discloses an elevator with adjustable load capacity and running speed, and relates to the technical field of elevator equipment. Including power unit and car main part, power unit includes multiunit haulage motor, counterweight subassembly, its one end of multiunit is connected and is fixed to the haulage rope body that the counterweight subassembly was connected to the car main part other end, car main part includes the portable car lateral wall board that car frame and a set of relative setting, still includes that a set of symmetry sets up car lateral wall board outside department can promote the power advancing device that car lateral wall board removed, still includes the PLC remote control ware of a haulage motor of a selective control, two haulage motors until a plurality of haulage motor simultaneous workings. The elevator can correspondingly change the space inside the elevator according to the actual use requirement of the elevator, externally change the load, change the running speed of the elevator by arranging a plurality of groups of traction motors and selectively controlling the traction motors to be opened, reduce the manufacturing and designing requirements and cost and control potential safety hazards.

Description

Elevator with adjustable load capacity and running speed

Technical Field

The invention relates to the technical field of elevator equipment, in particular to an elevator with adjustable load capacity and running speed.

Background

An elevator is a vertical elevator powered by an electric motor and equipped with a box-like car for carrying people or cargo in a multi-story building. There are also steps, where the tread plates are mounted on a track for continuous operation, commonly known as escalators or moving walkways. A fixed elevator apparatus serving a predetermined floor. A vertical lift elevator has a car that travels between at least two vertical rows of rigid guide rails. The size and the structural form of the car are convenient for passengers to access or load and unload goods. It is customary to use elevators as a generic term for vertical transport means in buildings, irrespective of their drive mode. According to the speed, the elevator can be divided into a low-speed elevator (less than 1 m/s), a high-speed elevator (1-2 m/s) and a high-speed elevator (more than 2 m/s). The hydraulic elevator begins to appear in the middle of the 19 th century and is still applied to low-rise buildings until now. In 1852, e.g. austs in the united states developed a safety hoist for wire rope hoisting. In the 80 s, further improvements were made to the drive means, such as motors driving the winding drum via a worm drive, the use of counterweights, etc. At the end of the 19 th century, friction wheel transmission is adopted, and the lifting height of the elevator is greatly increased.

The elevator adopts a permanent magnet synchronous traction machine as power at the end of the 20 th century. The machine room occupation is greatly reduced, the energy consumption is low, the energy is saved, the efficiency is high, the lifting speed is high, and the like, and the development of real estate to the direction of an ultra-high layer is greatly promoted.

At present, with the improvement of living conditions, the buildings with the height of five to six floors and the height of hundreds of floors are all provided with elevators, but the elevators have the following phenomena: i.e. the higher the floors the greater the number of elevators it uses. The reasons for such phenomena are mainly: the elevator can be stopped only in a specific floor area through presetting, so that the elevator leading to a high floor can run at a higher speed, and the elevator leading to a middle floor can run at a relatively lower speed, so that the use requirements of part of elevators are reduced, and the technical requirements are reduced so as to reduce the design and manufacturing cost of the elevators. But such a solution has some problems. For example, an elevator which leads to a high floor needs to travel to a given area at a high speed, but it stops between several adjacent floors in the high floor area at an originally high speed after reaching a certain number of floor areas, causing a great damage to the elevator itself, so that there is a great risk of the elevator traveling. And after the floors are divided into regions, one region only corresponds to a few or even one elevator, so that the condition of dual purposes of goods and passengers can occur, and in this case, part of goods with special-shaped structures can not be conveniently accommodated by the elevator or exceed the maximum load of the elevator.

Disclosure of Invention

The invention provides an elevator with adjustable load capacity and running speed, which can accommodate part of goods with larger weight and peculiar structure by adjusting the size of the space in the elevator, and can change the running speed and the number of traction motors by matching with the traction motors, so that the running speed and the running load of the elevator can be changed in a specific area, the actual use requirement is met, the manufacturing design requirement and the manufacturing cost are reduced, and the technical problem is solved.

The technical scheme for solving the problems is as follows: the utility model provides an elevator with adjustable loading capacity and running rate, includes power unit and car main part, power unit includes that multiunit haulage motor, counterweight block subassembly, its one end of multiunit are connected and are fixed to the haulage rope body of car main part other end connection fixed to the counterweight block subassembly, car main part includes the portable car lateral wall board that car frame and a set of relative set up, still sets up including a set of symmetry car lateral wall board outside department can promote the power advancing device that car lateral wall board removed, still includes the PLC remote control ware of a selective control haulage motor, two haulage motors up to a plurality of haulage motor simultaneous workings.

Further, the car frame comprises a positive electric opening and closing door, a rear side fixed wall plate, a top plate, a bottom plate and a fixed frame body support used for fixing the positive electric opening and closing door, the rear side fixed wall plate, the top plate and the bottom plate.

Furthermore, a plurality of movable sliding rails are further arranged on two sides of the fixed frame support, the movable sliding rails are respectively fixed at four corner positions on two side faces of the fixed frame support, and the fixed frame support further comprises reinforcing and fixing ribs which are arranged on the movable sliding rails and integrated with the movable sliding rails.

Furthermore, the power propulsion device comprises a power push rod and a power fixing support used for fixing the power push rod to enable the power push rod to be opposite to the center of the side wall plate of the car, and the power fixing support is fixed with the end part of the movable sliding rail.

Further, the power push rod is arranged to be a hydraulic power telescopic rod.

Furthermore, the traction rope body is provided with a plurality of groups, wherein the plurality of groups of traction rope bodies extend upwards from the four corners of the top surface of the car main body and are combined into one strand, and then the traction rope bodies are respectively connected with the traction motors and then connected to the counterweight block assembly.

Furthermore, the plurality of groups of traction motors are respectively arranged at different height positions on the same vertical plane.

Furthermore, a traction sheave is arranged at the output shaft end of the traction motor, and a traction rope can be sleeved on the traction sheave.

The invention has the beneficial effects that: the elevator with adjustable load capacity and running speed is provided with a plurality of groups of traction motors which are respectively connected with different traction rope bodies, so that when a plurality of traction machines work simultaneously, the elevator can obtain larger running speed, and in the process of running the elevator at larger speed, a plurality of traction rope bodies share running pressure. In addition, the technical requirements of the maximum operating power of the traction motor, the response efficiency of the traction motor and the like can be greatly reduced, and the manufacturing and purchasing costs of the traction motor are correspondingly reduced. More importantly: the size of the inner space of the car body in the device can be considered to be regulated, and when the power mechanism can keep the maximum load upper limit of the device, the size of the inner space of the car body can be changed by controlling the movement of the side wall plates of the car, so that the actual maximum load of the elevator can be changed from external factors. And the space of the elevator car is changed, so that the elevator can bear some goods devices with special-shaped structures during operation. Therefore, the device becomes a comprehensive elevator, and has wider function range. The running control of the traction motors is controlled by a PLC remote controller, and the function of the PLC remote controller is mainly to select and control a plurality of groups of traction motors to start running or stop running.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate embodiments of the invention and together with the description, serve to explain the principles of the invention. In the drawings, like reference numerals are used to indicate like elements. The drawings in the following description are directed to some, but not all embodiments of the invention. For a person skilled in the art, other figures can be derived from these figures without inventive effort.

Fig. 1 is a schematic view of the overall construction of an elevator with adjustable load capacity and operating speed according to the invention;

fig. 2 is a schematic view of a power propulsion unit mounting structure of an elevator with adjustable load capacity and operating speed according to the present invention;

fig. 3 is a schematic diagram of the structural principle of the car body of the elevator with adjustable load capacity and running speed of the invention.

1-power mechanism, 11-traction motor, 12-counterweight assembly, 13-traction rope body, 2-car body, 21-car frame, 211-positive electric opening and closing door, 212-rear side fixed wall plate, 213-top plate, 214-bottom plate, 215-fixed frame support, 216-movable sliding rail, 22-car side wall plate, 3-power propulsion device, 31-power push rod, 32-power fixed support, 4-PLC remote controller and 5-reinforcing fixed rib.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, 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 some, but not all, embodiments of the present invention. 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. It should be noted that the embodiments and features of the embodiments in the present application may be arbitrarily combined with each other without conflict.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

Referring to fig. 1, 2 and 3, an elevator with adjustable load capacity and running speed according to an embodiment of the present invention includes a power mechanism 1 and a car body 2, where the power mechanism 1 includes a plurality of sets of traction motors 11, a counterweight block assembly 12, and a plurality of sets of traction ropes 13 with one ends connected to the car body 2 and the other ends connected to the counterweight block assembly 12, and the car body 2 includes a car frame 21 and a set of movable car side wall plates 22 disposed oppositely, and further includes a set of power propulsion devices 3 symmetrically disposed at outer sides of the car side wall plates 22 and capable of propelling the car side wall plates 22 to move, and further includes a PLC remote controller 4 capable of selectively controlling one traction motor 11 and two traction motors 11 until a plurality of traction motors 11 work simultaneously.

In a preferred embodiment, the car frame 21 includes a positive power opening/closing door 211, a rear fixed wall plate 212, a top plate 213, a bottom plate 214, and a fixed frame bracket 215 for fixing the positive power opening/closing door 211, the rear fixed wall plate 212, the top plate 213, and the bottom plate 214. The positive electric opening and closing door 211 starts an induction control system, when the elevator runs to an entrance of the floor elevator, the positive electric opening and closing door 211 is automatically opened, and people enter the elevator; the rear fixed wall 212 is provided on the opposite side of the positive electric opening/closing door 211, and the top plate 213 and the bottom plate 214 are fixedly attached to the installation surface in the vertical direction, thereby constituting an integral frame of the car body 2. A plurality of movable sliding rails 216 are further disposed on two sides of the fixed frame support 215, and the movable sliding rails 216 are respectively fixed at four corner positions on two side surfaces of the fixed frame support 215. The moving slide rail 216 may be disposed at four diagonal positions of the car side wall panel 22 in a surrounding manner in this embodiment for restricting the installation position of the car side wall panel 22 so that the car side wall panel 22 can move only linearly on the moving slide rail 216 and along the moving slide rail 216. In order to make the movable slide rail 216 move on the car side wall plate 22, a gap may be provided at a position on the car side wall where the movable slide rail 216 contacts with the car side wall, and a roller may be provided at the gap position to make the car side wall contact with the movable slide rail 216 with the roller, so as to facilitate the movement of the car side wall plate 22 on the movable slide rail 216. Meanwhile, the movable sliding rail 216 also needs to be capable of supporting the weight of the car side wall plate 22 itself, and the weight of the power propulsion device 3 and the power fixing bracket 32, so that a reinforcing fixing rib 5 for reinforcing the structural strength of the movable sliding rail 216 is further arranged on the movable sliding rail 216 to improve the bearing capacity of the movable sliding rail 216.

As a second preferred aspect of the present invention, the power propulsion device 3 includes a power push rod 31 and a power fixing bracket 32 for fixing the power push rod 31 to face the center of the car side wall plate 22, and the power fixing bracket 32 is fixed to the end of the movable sliding rail 216. The power push rod 31 is a hydraulic power telescopic rod, the power push rod 31 can extend or contract under the action of hydraulic power, and one end of the power push rod 31 is fixed at the panel center position of the car side wall plate 22 while being fixed on the power fixing bracket 32, so that the car side wall plate 22 can move along with the power push rod 31 when the power push rod 31 extends or contracts.

As a third preferred embodiment, the hoisting rope bodies 13 are provided with a plurality of sets, wherein the plurality of sets of hoisting rope bodies 13 extend upwards from four corners of the top surface of the car body 2 and are combined into one strand, and then are separately connected to the plurality of hoisting motors 11 and then are connected to the counterweight block assembly 12. The method specifically comprises the following steps: the traction rope body is divided into four strands connected to four corners of the top plate 213 of the car body 2, and is tied up into one strand at the center point of the upper surface of the top plate 213, and the traction rope body 13 is divided into two strands at the position apart from the top plate 2131m, is connected with the traction wheels of the output ends of the two traction motors 11, then extends downwards from the other side of the traction machine until being tied up into one strand at the position apart from the counterweight block assembly 121m, and is finally connected and fixed with the counterweight block assembly 12. The two groups of traction motors 11 are respectively arranged at different height positions on the same vertical plane. This results in that the lengths of the two hoisting rope bodies 13 need to be changed correspondingly according to the height position of the hoisting motor 11, so as to ensure that the hoisting rope bodies 13 are just in a tightened state and avoid the phenomenon that the hoisting rope bodies 13 are mutually wound. Also can make traction force be in the central point of car main part 2 all the time and put, but also avoid traction force to take place the skew, lead to roof 213 position atress on the car main part 2 uneven, cause local position atress too big, cause the damage.

Where not mentioned above, all are applicable to the prior art.

Finally, it should be noted that: the above examples are only for illustrating the technical solutions of the present invention, and are not limited thereto. Although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.

Claims

1. An elevator with adjustable load capacity and operating speed, characterized by: including power unit (1) and car main part (2), power unit (1) includes that multiunit haulage motor (11), balancing weight subassembly (12), its one end of multiunit are connected and are fixed to the haulage rope body (13) of car main part (2) other end connection to counterweight block subassembly (12), car main part (2) are including car frame (21) and a set of portable car lateral wall board (22) that set up relatively, still include that a set of symmetry sets up car lateral wall board (22) outside department and can promote power advancing device (3) that car lateral wall board (22) moved, still include one haulage motor (11) of a selective control, two haulage motor (11) until a plurality of haulage motor (11) PLC remote control ware (4) of simultaneous working.

2. An elevator having adjustable capacity and travel rate according to claim 1, wherein: the car frame (21) comprises a positive electric opening and closing door (211), a rear side fixed wall plate (212), a top plate (213), a bottom plate (214) and a fixed frame body support (215) used for fixing the positive electric opening and closing door (211), the rear side fixed wall plate (212), the top plate (213) and the bottom plate (214).

3. An elevator having adjustable capacity and travel rate according to claim 2, wherein: the two sides of the fixed frame body support (215) are also provided with a plurality of movable sliding rails (216), the movable sliding rails (216) are respectively fixed at four corner positions on the two side faces of the fixed frame body support (215), and the fixed frame body support further comprises reinforcing and fixing ribs (5) which are arranged and integrated with the movable sliding rails (216).

4. An elevator having adjustable capacity and travel rate according to claim 3, wherein: the power propulsion device (3) comprises a power push rod (31) and a power fixing support (32) used for fixing the power push rod (31) to enable the power push rod to be opposite to the center of the side wall plate (22) of the car, and the power fixing support (32) is fixed with the end of the movable sliding rail (216).

5. An elevator having adjustable capacity and travel rate according to claim 4, wherein: the power push rod (31) is a hydraulic power telescopic rod.

6. An elevator having adjustable capacity and travel rate according to claim 1, wherein: the traction rope bodies (13) are provided with a plurality of groups, wherein the traction rope bodies (13) extend upwards from the four corners of the top surface of the car body (2) and are combined into one strand, and then are respectively connected with the traction motors (11) and then are connected to the counterweight block assembly (12).

7. An elevator having adjustable capacity and travel rate according to claim 1, wherein: the plurality of groups of traction motors (11) are respectively arranged at different height positions on the same vertical plane.

8. An elevator having adjustable capacity and travel rate according to claim 7, wherein: the output shaft end of the traction motor (11) is provided with a traction sheave, and a traction rope can be sleeved on the traction sheave.