Counterweight balancing system for elevator car

Abstract

The utility model belongs to the technical field of elevator car counterweight, and particularly relates to a counterweight balance system for an elevator car, which comprises a counterweight housing, a side plate is connected to the inner side of the counterweight housing, a counterweight block placing port is arranged on the surface of the side plate, a counterweight block is arranged on the inner side of the counterweight housing, an installation lug is connected to the outer wall of the counterweight housing, and the counterweight block placing port is arranged on the outer wall of the counterweight housing. The driving motor drives the threaded rod to rotate anticlockwise, so that the threaded connecting block in threaded connection with the outer wall of the threaded rod can drive the lower pressing plate to ascend to the top, the sliding groove and the sliding block can play a guiding role in the ascending and descending period of the threaded connecting block, and then the balancing weights with the corresponding number are placed into the inner side from the balancing weight placing opening; and then the threaded rod is driven by the driving motor to rotate clockwise, so that the threaded connecting block in threaded connection with the outer wall of the threaded rod can drive the pressing plate to press the uppermost balancing weight, and the balancing weight is assembled on the counterweight housing more conveniently.

Description

TECHNICAL FIELD

[0001] The utility model belongs to elevator car counterweight technical field, concretely relates to a counterweight balancing system for elevator car. BACKGROUND

[0002] The counterweight balancing system of elevator car is also called weight balancing system, and the system is mainly composed of the following parts: counterweight frame, counterweight block, compensation device and the like, wherein the counterweight frame, counterweight block and the like are mainly used to balance the weight of the car and part of the load weight, so as to reduce the power loss of the motor and improve the operation efficiency of the elevator, and the compensation device is used to balance the one-side heavy phenomenon of the weight of the steel wire rope in the running process due to the excessively high lifting height of the elevator and the excessively long traction steel wire rope. The common types of compensation device include compensation chain, compensation cable and compensation rope and the like. The weight per unit length of these compensation devices is usually equivalent to that of the traction steel wire rope, so as to ensure the stability of the elevator in the lifting process.

[0003] At present, when the counterweight frame in the existing counterweight balancing system of elevator car is assembled with the counterweight block, the upper part of the counterweight frame usually needs to be disassembled, then the counterweight block is inserted into the counterweight frame from the top of the counterweight frame and assembled to realize the placement of the assembled block, and then the upper part of the counterweight frame is assembled again after assembly. However, this way is very inconvenient to operate, and a lot of time is needed, thereby reducing the installation efficiency of the counterweight block. UTILITY MODEL CONTENTS

[0004] The utility model aims at providing a counterweight balancing system for elevator car, and aims at solving the problem that the counterweight frame in the existing counterweight balancing system of elevator car usually needs to be disassembled when assembled with the counterweight block, then the counterweight block is inserted into the counterweight frame from the top of the counterweight frame and assembled to realize the placement of the assembled block, then the upper part of the counterweight frame is assembled again after assembly. However, this way is very inconvenient to operate, and a lot of time is needed, thereby reducing the installation efficiency of the counterweight block.

[0005] In order to achieve the above-mentioned purpose, the utility model provides the following technical scheme: a counterweight balancing system for elevator car, comprising a counterweight frame, the inner side of the counterweight frame is connected with a side plate, the surface of the side plate is provided with a counterweight block placing opening, the inner side of the counterweight frame is provided with a counterweight block, and the outer wall of the counterweight frame is connected with a mounting ear.

[0006] The back of the counterweight frame is connected with a mounting frame, the top of the mounting frame is provided with a driving motor, the output end of the driving motor is connected with a threaded rod, the outer wall of the threaded rod is connected with a threaded connecting block in a threaded mode, the outer wall of the threaded connecting block is connected with a mounting plate, one end of the mounting plate is provided with a pressing plate, and the outer wall of the mounting frame is provided with a sliding groove.

[0007] Preferably, the lower pressing plate is located inside the counterweight frame.

[0008] Preferably, one end of the threaded rod is rotatably connected to the mounting frame through a bearing.

[0009] Preferably, the threaded connecting block is located inside the mounting frame.

[0010] Preferably, the threaded connecting block is slidably connected to the mounting frame through a sliding groove and a sliding block.

[0011] Preferably, the lower pressing plate is provided with a rubber layer on the bottom, and the outer wall of the lower pressing plate is connected with a limiting block.

[0012] Preferably, the four limiting blocks are located at the four corners of the lower pressing plate.

[0013] Compared with the prior art, the utility model has the advantages of:

[0014] The threaded connecting block connected with the outer wall of the threaded rod can drive the lower pressing plate to rise and top, the sliding groove and the sliding block are arranged to guide the threaded connecting block during the lifting, then the corresponding number of counterweight blocks are put into the inside from the counterweight block placing opening, and then the threaded connecting block connected with the outer wall of the threaded rod can drive the lower pressing plate to press the uppermost counterweight block through the clockwise rotation of the threaded rod driven by the driving motor, so that the counterweight blocks are more conveniently assembled on the counterweight frame.

[0015] The rubber layer is arranged on the bottom of the lower pressing plate when the lower pressing plate is pressed, so that the rubber layer is located between the counterweight block and the lower pressing plate, thereby avoiding the abrasion of the lower pressing plate after long-term use, and the four limiting blocks are arranged to limit the counterweight block when the lower pressing plate is pressed, so that one end of the four limiting blocks limits the two sides of the counterweight block, thereby improving the stability of the assembled counterweight block. BRIEF DESCRIPTION OF DRAWINGS

[0016] The accompanying drawings are included to provide a further understanding of the utility model, constitute a part of the specification, and are used together with the embodiments of the utility model to explain the utility model, and do not constitute the limitation to the utility model. In the drawings:

[0017] Figure 1 It is a first main view structural schematic diagram of the utility model;

[0018] Figure 2 It is the second main structure schematic view of the utility model;

[0019] Figure 3 It is the rear view structure schematic view of the utility model;

[0020] Figure 4 It is the A amplification structure schematic view of the utility model.

[0021] In the figure: 1, counterweight frame; 2, side plate; 3, counterweight block placing opening; 4, counterweight block; 5, mounting lug; 6, mounting frame; 7, drive motor; 8, threaded rod; 9, threaded connecting block; 10, mounting plate; 11, lower pressing plate; 12, rubber layer; 13, limiting block; 14, sliding groove; 15, sliding block. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the utility model.

[0023] Please refer to Figures 1-4 The utility model provides the following technical scheme: a counterweight balancing system for elevator car, including counterweight frame 1, the inner side of counterweight frame 1 is connected with side plate 2, the surface of side plate 2 is equipped with counterweight block placing opening 3, the inner side of counterweight frame 1 is provided with counterweight block 4, the outer wall of counterweight frame 1 is connected with mounting lug 5;

[0024] The back of counterweight frame 1 is connected with mounting frame 6, the top of mounting frame 6 is installed with drive motor 7, the output end of drive motor 7 is connected with threaded rod 8, the outer wall of threaded rod 8 is connected with threaded connecting block 9, the outer wall of threaded connecting block 9 is connected with mounting plate 10, one end of mounting plate 10 is installed with lower pressing plate 11, the outer wall of mounting frame 6 is equipped with sliding groove 14, the outer wall of threaded connecting block 9 is connected with sliding block 15;

[0025] It should be noted that the drive motor 7 is connected with the control switch by external power supply.

[0026] Preferably: lower pressing plate 11 is located in the inner side of counterweight frame 1, one end of threaded rod 8 is connected with mounting frame 6 by bearing and forms rotating connection structure, threaded connecting block 9 is located in the inner side of mounting frame 6, threaded connecting block 9 can form sliding connection structure with mounting frame 6 through sliding groove 14 and sliding block 15.

[0027] In specific use, the threaded rod 8 is driven by the driving motor 7 to rotate counterclockwise, so that the threaded connecting block 9 connected with the outer wall of the threaded rod 8 can drive the lower pressing plate 11 to rise to the top, during which the sliding groove 14 and the sliding block 15 can play a guiding role during the lifting and lowering of the threaded connecting block 9, then a corresponding number of counterweight blocks 4 are put into the inner side from the counterweight block placing opening 3, and then the threaded rod 8 is driven by the driving motor 7 to rotate clockwise, so that the threaded connecting block 9 connected with the outer wall of the threaded rod 8 can drive the lower pressing plate 11 to press the uppermost counterweight block 4, so that the counterweight block 4 is more conveniently assembled on the counterweight frame 1.

[0028] Preferably, the bottom of the lower pressing plate 11 is bonded with a rubber layer 12, and the outer wall of the lower pressing plate 11 is connected with limiting blocks 13, and the limiting blocks 13 are located at four corners of the lower pressing plate 11.

[0029] In specific use, when the lower pressing plate 11 is pressed, the rubber layer 12 at the bottom of the lower pressing plate 11 is located between the counterweight block 4 and the lower pressing plate 11, so as to avoid wear of the lower pressing plate 11 after long-term use, and when the lower pressing plate 11 presses the counterweight block 4, one end of the four limiting blocks 13 can limit the two sides of the counterweight block 4, so as to improve the stability of the assembled counterweight block 4.

[0030] Working principle: first, the threaded rod 8 is driven by the driving motor 7 to rotate counterclockwise, so that the threaded connecting block 9 connected with the outer wall of the threaded rod 8 can drive the lower pressing plate 11 to rise to the top, during which the sliding groove 14 and the sliding block 15 can play a guiding role during the lifting and lowering of the threaded connecting block 9, then a corresponding number of counterweight blocks 4 are put into the inner side from the counterweight block placing opening 3, and then the threaded rod 8 is driven by the driving motor 7 to rotate clockwise, so that the threaded connecting block 9 connected with the outer wall of the threaded rod 8 can drive the lower pressing plate 11 to press the uppermost counterweight block 4, so that the counterweight block 4 is more conveniently assembled on the counterweight frame 1, and through the setting of the rubber layer 12, when the lower pressing plate 11 is pressed, the rubber layer 12 at the bottom of the lower pressing plate 11 is located between the counterweight block 4 and the lower pressing plate 11, so as to avoid wear of the lower pressing plate 11 after long-term use, and when the lower pressing plate 11 presses the counterweight block 4, one end of the four limiting blocks 13 can limit the two sides of the counterweight block 4, so as to improve the stability of the assembled counterweight block 4.

[0031] Finally, it should be noted that: the above is only the preferred embodiment of the utility model, and is not used to limit the utility model, although the utility model is described in detail with reference to the foregoing embodiments, for the person skilled in the art, it still can modify the technical scheme recorded in the foregoing each embodiment, or make equivalent replacement to part of the technical features. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the utility model should be included in the protection scope of the utility model.

Claims

1. A counterweight balancing system for an elevator car, comprising a counterweight frame (1), characterized in that: The inner side of the counterweight frame (1) is connected with a side plate (2), the surface of the side plate (2) is provided with a counterweight block placing opening (3), the inner side of the counterweight frame (1) is provided with a counterweight block (4), and the outer wall of the counterweight frame (1) is connected with a mounting lug (5); The back of the counterweight frame (1) is connected with a mounting frame (6), the top of the mounting frame (6) is provided with a driving motor (7), the output end of the driving motor (7) is connected with a threaded rod (8), the outer wall of the threaded rod (8) is threadedly connected with a threaded connecting block (9), the outer wall of the threaded connecting block (9) is connected with a mounting plate (10), one end of the mounting plate (10) is provided with a pressing plate (11), the outer wall of the mounting frame (6) is provided with a sliding groove (14), and the outer wall of the threaded connecting block (9) is connected with a sliding block (15).

2. A counterweight balancing system for an elevator car according to claim 1, characterized in that: The pressing plate (11) is located in the inner side of the counterweight frame (1).

3. A counterweight balancing system for an elevator car as defined in claim 1, characterized by: One end of the threaded rod (8) is connected with the mounting frame (6) through a bearing to form a rotating connection structure.

4. A counterweight balancing system for an elevator car according to claim 1, characterized in that: The threaded connecting block (9) is located in the inner side of the mounting frame (6).

5. A counterweight balancing system for an elevator car according to claim 4, characterized in that: The threaded connecting block (9) is connected with the mounting frame (6) through the sliding groove (14) and the sliding block (15) to form a sliding connection structure.

6. A counterweight balancing system for an elevator car as defined in claim 1, characterized by: The bottom of the pressing plate (11) is bonded with a rubber layer (12), and the outer wall of the pressing plate (11) is connected with a limiting block (13).

7. A counterweight balancing system for an elevator car according to claim 6, characterized in that: The limiting block (13) is located at four corners of the pressing plate (11).

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