CN210438249U

CN210438249U - Elevator without counterweight and shallow pit

Info

Publication number: CN210438249U
Application number: CN201921006174.3U
Authority: CN
Inventors: 卢青; 陈志雄; 颜宏珍; 梁家健
Original assignee: Guangzhou Yongri Elevator Co ltd
Current assignee: Guangzhou Yongri Elevator Co ltd
Priority date: 2019-06-27
Filing date: 2019-06-27
Publication date: 2020-05-01
Anticipated expiration: 2029-06-27

Abstract

The counterweight-free shallow pit elevator is installed in an elevator shaft and is characterized in that the traction ratio of the counterweight-free shallow pit elevator is 2N: 1, N is a positive integer greater than or equal to 1, the counterweightless shallow pit elevator comprising: the elevator comprises a lift car, a frame, an upper pulley block, a lower pulley block and a steel wire rope. The utility model discloses a wire rope that the setting includes upper portion assembly pulley and lower part assembly pulley and connects upper portion assembly pulley and lower part assembly pulley, through receiving and releasing of driving wire rope of driving sheave in the upper portion assembly pulley, wire rope receive and releases the lift that drives the car between upper portion assembly pulley and lower part assembly pulley. This elevator structure is rigorous, and the car operation is stable, sets up driving sheave and driver pivoted hauler at the top of well simultaneously, avoids setting up a plurality of drive arrangement in the bottom of well for the pit degree of depth can reduce in order to be applicable to the elevator well of shallow pit.

Description

Elevator without counterweight and shallow pit

Technical Field

The utility model relates to an elevator field especially relates to no counter weight shallow pit elevator.

Background

Traction type elevator generally all will have a counterweight as the mainstream of elevator, and counterweight can balanced car weight relatively, but energy loss is great, and the cost is higher, and counterweight occupies the well certain area, leads to the well utilization ratio lower. In addition, the pit is located in the portion of the hoistway below the lowest landing served by the elevator car. But sometimes different pipelines are buried underground, so that the pit depth is small and the requirement of a common elevator is difficult to meet. There is a need to find ways to address these two drawbacks.

Disclosure of Invention

Based on this, it is necessary to provide a counterweightless shallow pit elevator for solving the problems of large energy consumption, large occupied area and deep pit of the traction elevator in the prior art.

The utility model provides a no counterpoise shallow pit elevator, no counterpoise shallow pit elevator is installed in the elevator well, no counterpoise shallow pit elevator tow than be 2N: 1, N is a positive integer greater than or equal to 1, the counterweightless shallow pit elevator comprising:

a car;

the frame is arranged above the car;

the upper pulley block comprises N upper movable pulleys arranged at the upper part of the car, N-1 upper fixed pulleys arranged on the rack, a traction sheave and an upper rope hitch plate;

the lower pulley block comprises A lower movable pulleys arranged at the lower part of the car, A lower fixed pulleys arranged at the bottom of the shaft and a lower rope head plate, wherein A is a positive integer greater than or equal to 1;

the upper rope end of the steel wire rope is connected with the upper rope hitch plate, and the lower rope end of the steel wire rope is connected with the lower rope hitch plate; the steel wire rope is sequentially wound on the upper movable pulley and the upper fixed pulley and the traction sheave corresponding to the upper movable pulley from the upper rope head to the lower rope head, and then sequentially and alternately wound on the lower fixed pulley and the lower movable pulley corresponding to the lower fixed pulley.

Preferably, the elevator without counterweight and shallow pit further comprises a guide rail vertically arranged on the wall of the hoistway and a guide shoe arranged on the car and matched with the guide rail.

Preferably, the guide rail is provided on the hoistway adjacent to the rope side wall.

Preferably, the number of the guide shoes is 4.

Preferably, the elevator without counterweight and shallow pit further comprises a first buffer arranged at the bottom of the hoistway, and a first buffer plate arranged at the bottom of the car and corresponding to the first buffer.

Preferably, the elevator without counterweight and shallow pit further comprises a second buffer arranged on the lower surface of the frame, and a second buffer plate arranged on the top of the car and corresponding to the second buffer.

Preferably, the upper and lower sheave blocks and the wire rope are configured as a lifting mechanism, the elevator without counterweight and shallow pit comprises two sets of the lifting mechanisms, and one set of the lifting mechanism is respectively arranged on the left side and the right side of the car.

The utility model discloses a wire rope that the setting includes upper portion assembly pulley and lower part assembly pulley and connects upper portion assembly pulley and lower part assembly pulley, through receiving and releasing of driving wire rope of driving sheave in the upper portion assembly pulley, wire rope receive and releases the lift that drives the car between upper portion assembly pulley and lower part assembly pulley. This elevator structure is rigorous, and the car operation is stable, sets up driving sheave and driver pivoted hauler at the top of well simultaneously, avoids setting up a plurality of drive arrangement in the bottom of well for the pit degree of depth can reduce in order to be applicable to the elevator well of shallow pit. The elevator is not provided with a counterweight, so that the cost is reduced, the energy consumption is reduced, the utilization rate of an elevator shaft is improved, and the elevator can be used in families such as villas and home bases.

Drawings

Fig. 1 is a schematic structural diagram of an embodiment of a middle-or middle-weight-free shallow pit elevator of the present invention.

Detailed Description

The utility model provides a no counterpoise shallow pit bottom elevator, refer to fig. 1, no counterpoise shallow pit bottom elevator installs in the elevator well, and it tows than being 2N: 1 and N are positive integers greater than or equal to 1, and the counterweight-free shallow pit elevator comprises a car 10, a frame 20, an upper pulley block 30, a lower pulley block 40 and a steel wire rope 50; a frame 20 disposed above the car 10; an upper pulley block 30, which comprises N upper movable pulleys arranged at the upper part of the cage 10, N-1 upper fixed pulleys 32 arranged on the frame 20, a traction sheave 33 and an upper rope hitch plate 31; the lower pulley block 40 comprises A lower movable pulleys arranged at the lower part of the car 10, A lower fixed pulleys arranged at the bottom of the shaft and a lower rope hitch plate 41, wherein A is a positive integer greater than or equal to 1; the upper rope end of the steel wire rope 50 is connected with the upper rope hitch plate 31, and the lower rope end of the steel wire rope 50 is connected with the lower rope hitch plate 41; the wire rope 50 is sequentially wound around the upper fixed sheave and the upper fixed sheave 32 and the traction sheave 33 corresponding thereto from the upper sheave to the lower sheave, and then sequentially wound around the lower fixed sheave and the lower movable sheave corresponding thereto in a staggered manner.

In the present embodiment, referring to fig. 1, the car 10 is installed in an elevator hoistway, a load bearing plate is installed at an upper portion of the hoistway, the frame 20 is installed on the load bearing plate, and a through hole through which the wire rope 50 passes is further provided in the load bearing plate. In this embodiment, the traction ratio 4: 1, whereby N is 2. The upper sheave block includes an upper rope hitch 31, an upper fixed sheave 32, a traction sheave 33, and first and second

upper traveling sheaves

35 and 34 provided in an upper portion of the car 10, which are provided side by side in the frame 20. The lower sheave block includes a lower head plate 41, a first lower fixed sheave 42, a second lower fixed sheave 43, and a first lower movable sheave 44 and a second lower movable sheave 45 provided in an upper portion of the car 10, which are provided side by side at a bottom of the hoistway. The upper rope end of the steel wire rope 50 is connected with the upper rope hitch plate 31, and the lower rope end of the steel wire rope is connected with the lower rope hitch plate 41; the wire rope 50 is wound around the first upper movable sheave 35, the upper fixed sheave 32, the second upper movable sheave 34, the traction sheave 33, the second lower fixed sheave 43, the second lower movable sheave 45, the first lower fixed sheave 42, and the first lower movable sheave 44 in this order from the upper end to the lower end and is then fixed to the lower head plate 41. In the lift car 10, the traction sheave 33 is driven by the traction machine 80, the traction sheave 33 rotates clockwise, and drives the wire rope 50 to be entirely transferred from the upper side to the lower side, and the transfer amount of the wire rope 50 in the upper pulley block 30 is compensated to the lower pulley block 40, thereby moving the upper and lower movable pulleys and the lift car 10 upward. The descending process and the lifting process of the car 10 are reversed, and are not described in detail herein.

The utility model discloses a setting includes upper portion assembly pulley 30 and lower part assembly pulley 40 and connects the wire rope 50 of upper portion assembly pulley 30 and lower part assembly pulley 40, through the receiving and releasing of traction sheave 33 drive wire rope 50 in the upper portion assembly pulley 30, wire rope 50 is at the lift that the car 10 was driven in receiving and releasing between upper portion assembly pulley 30 and lower part assembly pulley 40. The elevator has a strict structure and the car 10 runs stably. Simultaneously with the hauler setting at the top of well, avoid setting up a plurality of drive equipment in the bottom of well for the pit degree of depth can reduce in order to be applicable to the elevator well of shallow pit. The elevator is not provided with a counterweight, so that the cost is reduced, the energy consumption is reduced, the utilization rate of an elevator shaft is improved, and the elevator can be used in families such as villas and home bases.

Further, referring to fig. 1, the elevator without counterweight and shallow pit further includes a guide rail 61 vertically disposed on the hoistway wall and a guide shoe 62 disposed on the car 10 and adapted to the guide rail 61. In this embodiment, the guide rail 61 is preferably a vertically disposed rod, and the guide shoe 62 is preferably a sleeve fitted to the rod; alternatively, the guide rails 61 may be dovetail guide rails 61 and the guide shoes 62 may be dovetail sliders disposed on the sides of the car 10 and adapted to reduce lateral sway of the car 10 during lifting.

In order to increase the reliability, in some embodiments, the guide rails 61 are 4 in number and are distributed two by two on the adjacent wall of the car 10 near the wire ropes. In the embodiment, the guide rails 61 distributed corresponding to opposite angles of the car 10 and the guide shoes 62 matched with the guide rails 61 are arranged, so that the transverse swing of the car 10 is further reduced, and the safety of the car 10 during lifting is improved.

Referring to fig. 1, the guide rail 61 is provided on a side wall of the hoistway adjacent to the wire rope 50. In this embodiment, the guide rail 61 is disposed close to the steel wire rope 50, so that the pressure of the guide shoe 62 on the guide rail can be reduced, the friction between the guide shoe and the guide rail can be reduced, the safety performance of the elevator can be improved, and the friction energy consumption can be reduced.

Referring to fig. 1, the counterweightless shallow pit elevator further includes a first buffer 70 disposed at the bottom of the hoistway, and a first buffer plate disposed at the bottom of the car 10 and corresponding to the first buffer 70. In this embodiment, the first buffer 70 is preferably a hydraulic buffer uniformly distributed at the bottom of the hoistway, and the buffer push rod thereof is vertically upward. The first buffer board sets up in 10 bottoms of car for the buffering push rod of dispersion to the cushion force of 10 bottoms of car, also can protect 10 bottoms of car to prevent that car 10 from taking place serious deformation simultaneously, ensures that the elevator is steadily parked when will the bottom.

Further, the elevator with a shallow pit without counterweight further comprises a second buffer arranged on the lower surface of the frame 20, and a buffer plate arranged on the top of the car 10 and corresponding to the second buffer. In this embodiment, a second buffer may also be disposed at the bottom of the frame 20, and a through hole for the second buffer to pass through is disposed on the bearing plate, and similarly, the second buffer is preferably a hydraulic buffer, and the buffer rod of the second buffer is disposed vertically downward. The second buffer board sets up at 10 tops of car for the distributed buffering push rod to the buffer force at 10 tops of car, also can protect 10 of car to prevent that car 10 from taking place serious deformation simultaneously, ensures that the elevator parks steadily when will the top.

Further, the upper and lower sheave blocks and the wire rope 50 are configured as a lifting mechanism, and the counterweightless shallow pit elevator includes two sets of lifting mechanisms, and one set of lifting mechanism is disposed on each of the left and right sides of the car 10. The two sets of lifting mechanisms are provided in this embodiment to further ensure balanced stress during the lifting process of the elevator, and it is noted that the traction sheaves 33 in the two sets of lifting mechanisms are driven by the same traction machine 80 to ensure synchronous lifting of both sides of the machine case.

The technical features of the above embodiments can be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the above embodiments are not described, but should be considered as the scope of the present specification as long as there is no contradiction between the combinations of the technical features. The above examples only represent some embodiments of the present invention, and the description thereof is more specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims

1. The counterweight-free shallow pit elevator is installed in an elevator shaft and is characterized in that the traction ratio of the counterweight-free shallow pit elevator is 2N: 1, N is a positive integer greater than or equal to 1, the counterweightless shallow pit elevator comprising:

a car;

the frame is arranged above the car;

the upper pulley block comprises N upper movable pulleys arranged at the upper part of the cage, N-1 upper fixed pulleys arranged on the rack, a traction sheave and an upper rope head plate;

2. The counterweightless shallow pit elevator according to claim 1, further comprising guide rails vertically disposed on the hoistway walls and guide shoes disposed on the car and fitted with the guide rails.

3. The counterweightless shallow pit elevator according to claim 2, wherein the guide rail is provided on a side wall of the hoistway adjacent to the wire rope.

4. The counterweightless shallow pit elevator according to claim 1, further comprising a first buffer provided at the bottom of the hoistway, and a first buffer plate provided at the bottom of the car and corresponding to the first buffer.

5. The elevator with no counterweight and shallow pit as claimed in claim 1, further comprising a second buffer disposed on the lower surface of the frame, and a second buffer plate disposed on the top of the car and corresponding to the second buffer.

6. The elevator with no counterweight and shallow pit as claimed in any one of claims 1 to 5, characterized in that the upper and lower sheave blocks and the wire rope are configured as hoisting mechanisms, and the elevator with no counterweight and shallow pit comprises two sets of the hoisting mechanisms, and one set of the hoisting mechanisms is disposed on each of the left and right sides of the car.