Weight box for traction type elevator

Abstract

The utility model belongs to the technical field of elevator counterweight, and particularly relates to a counterweight box for a traction type elevator, which comprises a box body, the box body comprises a top plate, a bottom plate, side plates and a counterweight cavity enclosed by the top plate, the bottom plate and the side plates, a plurality of positioning columns are arranged between the top plate and the bottom plate, and a plurality of vertically arranged large counterweight blocks are arranged in the counterweight cavity. The large balancing weight is connected with the positioning column in a clamped mode, a positioning groove extending from the side wall to the middle is formed in the large balancing weight, a fixing block is installed on the positioning groove in a matched mode, a plurality of installation grooves capable of containing the small balancing weight are formed in the large balancing weight on the top, and the installation grooves are symmetrically distributed in the large balancing weight. According to the utility model, the positioning column is matched with the fixing block to position the large balancing weight, the phenomenon of eccentric wear of the guide rail is prevented, when a worker debugs the balancing weight, the balance weight is debugged by increasing or reducing the weight of the small balancing weight, and the small balancing weight is convenient to disassemble and only needs to be taken out from the mounting groove.

Description

Technical Field

[0001] The utility model relates to the technical field of elevator counterweights, in particular to a counterweight box for a traction elevator. Background Art

[0002] The elevator counterweight is an important part of the elevator traction system. When the car moves, the counterweight moves up and down along the guide rail through the guide shoe, and its function is to stabilize the weight of the car. However, the size of the load in the car is often changing, and the counterweight has been fixed after the elevator is installed and debugged and cannot be changed at any time. In order to make the operation of the elevator basically close to the ideal balance state, it is necessary to select a suitable balance coefficient K. The existing counterweight block is heavy. When the balance coefficient K is adjusted by changing the number of counterweight blocks, the adjustment range of the elevator balance coefficient by adding or reducing one counterweight block is large, and it is not easy to obtain an ideal balance coefficient. Therefore, it is necessary to use large counterweight blocks and small counterweight blocks to cooperate to deweight the elevator car. When adjusting the balance coefficient, the number of counterweight blocks can be increased or decreased to achieve a small range of adjustment of the balance coefficient. When the existing elevator counterweight is adjusted in a small range, the counterweight block is not convenient to disassemble.

[0003] CN217650683U discloses a convenient detachable counterweight for elevators, comprising a lower frame with an upper opening, a plurality of large counterweights fixed in the lower frame, an upper frame fixed at the upper end of the lower frame, a clamping plate is threadedly connected to the front and rear sides of the positive and negative lead screws in the upper frame, the clamping plate is slidably connected to the upper frame, a plurality of small counterweights are arranged on the positive and negative lead screws between the two clamping plates, and the front and rear clamping plates located on the same side clamp the plurality of small counterweights. The small counterweight of the utility model can be centrally arranged after installation, and can prevent the counterweight from tilting and prevent the guide shoe from wearing eccentrically with the guide rail. However, when adding or reducing the small counterweight during the debugging process, the positive and negative lead screws need to be disassembled, and the positive and negative lead screws need to be installed after the small counterweight is put in or taken out. After the installation is completed, the positive and negative lead screws need to be rotated manually to make the small counterweight be centrally arranged, and the debugging is relatively troublesome. Utility Model Content

[0004] In order to overcome the above-mentioned defects existing in the prior art, the utility model provides a counterweight box for a traction elevator.

[0005] A counterweight box for a traction elevator comprises a box body, wherein the box body comprises a top plate, a bottom plate, a side plate, and a counterweight cavity enclosed by the top plate and the bottom plate, a plurality of positioning columns are arranged between the top plate and the bottom plate, a plurality of vertically arranged large counterweight blocks are arranged in the counterweight cavity, the large counterweight blocks are clamped with the positioning columns, the large counterweight blocks are provided with positioning grooves extending from the side walls to the middle, the positioning grooves are matched with fixed blocks, the large counterweight blocks at the top are provided with a plurality of mounting grooves for accommodating small counterweight blocks, and the mounting grooves are symmetrically distributed on the large counterweight blocks.

[0006] Furthermore, positioning protrusions are provided on both sides of the fixing block, and the positioning protrusions are clamped with the large counterweight block through positioning grooves.

[0007] Furthermore, baffles are provided on both sides of the side plates, and a plurality of bolt holes are provided on the baffles. A fixing frame is provided between the two baffles, and the bottom of the fixing pin passes through the fixing frame and abuts against the pressure plate. The pressure plate is located above the large counterweight block, and an adjusting nut is threadedly connected to the pin rod of the fixing pin, and the pressure plate is slidably connected to the positioning column.

[0008] Furthermore, the fixing frame is a U-shaped structure, and the side wall of the fixing frame is connected to the baffle bolts.

[0009] Furthermore, two ends of the pressure plate are provided with extension protrusions, and the extension protrusions are located between the two baffles.

[0010] Furthermore, the large counterweight block at the top is provided with a through slot running through the large counterweight block longitudinally, and the through slot is perpendicular to the mounting slot.

[0011] Due to the adoption of the above technical scheme, the beneficial technical effect of the utility model is as follows: in the utility model, the large counterweight block is positioned by cooperating with the positioning column and the fixed block to prevent the large counterweight block from shaking and the guide rail from wearing unevenly during the up and down movement of the counterweight box. When the staff needs to increase or reduce the weight during the debugging of the counterweight, it is achieved by increasing or reducing the weight of the small counterweight block. The small counterweight block is easy to disassemble, and it only needs to be taken out of the installation slot. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a structural schematic diagram of a counterweight box for a traction elevator of the utility model;

[0013] Figure 2 It is a schematic diagram of the installation structure of the large counterweight block and the small counterweight block in the utility model;

[0014] Figure 3 It is a structural schematic diagram of the medium pressure plate of the utility model.

[0015] In the figure, 1, top plate, 2, bottom plate, 3, side plate, 4, counterweight cavity, 5, positioning column, 6, large counterweight block, 7, positioning groove, 8, fixing block, 9, small counterweight block, 10, mounting groove, 11, positioning protrusion, 12, baffle, 13, bolt hole, 14, fixing frame, 15, fixing pin, 16, pressure plate, 17, adjusting nut, 18, extension protrusion, and 19, through groove. DETAILED DESCRIPTION

[0016] In order to more clearly illustrate the technical solution of the utility model, the utility model is further described below in conjunction with the accompanying drawings. Obviously, the accompanying drawings described below are only one embodiment of the utility model. For ordinary technicians in this field, without paying any creative work, other embodiments can be obtained based on this drawing and embodiment, which all belong to the protection scope of the utility model.

[0017] according to Figure 1-3 As shown, a counterweight box for a traction elevator includes a box body, wherein the box body includes a top plate 1, a bottom plate 2, a side plate 3, and a counterweight cavity 4 enclosed by them, a plurality of positioning columns 5 are arranged between the top plate 1 and the bottom plate 2, a plurality of vertically arranged large counterweight blocks 6 are arranged in the counterweight cavity 4, the large counterweight blocks 6 are snap-connected with the positioning columns 5, the large counterweight blocks 6 are provided with positioning grooves 7 extending from the side walls to the middle, the positioning grooves 7 are matched with fixed blocks 8, and the large counterweight blocks 6 at the top are provided with a plurality of mounting grooves 10 for accommodating small counterweight blocks 9, and the mounting grooves 10 are symmetrically distributed on the large counterweight blocks 6.

[0018] In the above specific implementation manner, the large counterweight 6 is positioned by cooperating with the positioning column 5 and the fixing block 8 to prevent the counterweight box from shaking and the guide rail from wearing eccentrically during the up and down movement. When the staff needs to increase or reduce the weight during the debugging of the counterweight, it is achieved by increasing or reducing the weight of the small counterweight 9. The small counterweight 9 is easy to disassemble, and it is only necessary to take the small counterweight 9 out of the mounting slot 10. Preferably, the number of mounting slots 10 is odd. If an even number of small counterweights 9 is required, the middle mounting slot 10 is empty and symmetrically placed with the middle mounting slot 10 as the axis of symmetry. When an odd number of small counterweights 9 is required, the small counterweight 9 is placed in the middle mounting slot 10, and then symmetrically placed with the middle mounting slot 10 as the axis of symmetry. This prevents the counterweight box from tilting due to uneven placement of small counterweights 9 during the debugging process, which causes eccentric wear of the guide rail.

[0019] Positioning protrusions 11 are provided on both sides of the fixing block 8, and the positioning protrusions 11 are engaged with the large counterweight block 6 through the positioning grooves 7. By providing the positioning protrusions 11, it is convenient to connect the fixing block 8 with the large counterweight block 6, thereby playing a positioning role for the large counterweight block 6.

[0020] Baffles 12 are provided on both sides of the side plate 3, and a plurality of bolt holes 13 are provided on the baffles 12. A fixing frame 14 is provided between the two baffles 12. The bottom of the fixing pin 15 passes through the fixing frame 14 and abuts against a pressure plate 16. The pressure plate 16 is located above the large counterweight block 6. An adjusting nut 17 is threadedly connected to the pin rod of the fixing pin 15. The pressure plate 16 is slidably connected to the positioning column 5. By setting the pressure plate 16, it is beneficial to apply pressure to the large counterweight block 6 and the small counterweight block 9 from the top, which is beneficial to the stability of the counterweight box structure.

[0021] The fixing frame 14 is a U-shaped structure, and the side wall of the fixing frame 14 is connected to the baffle 12 with bolts.

[0022] Extended protrusions 18 are provided at both ends of the pressure plate 16 . The extended protrusions 18 are located between the two baffles 12 to limit the baffles 12 in the horizontal direction.

[0023] The large counterweight block 6 at the top is provided with a through slot 19 which penetrates the large counterweight block 6 longitudinally. The through slot 19 is perpendicular to the mounting slot 10 . The through slot 19 is provided to facilitate the placement and removal of the small counterweight block 9 .

[0024] The above embodiments are only exemplary embodiments of the present invention and are not intended to limit the present invention. The protection scope of the present invention is defined by the claims. Those skilled in the art may make various modifications or equivalent substitutions to the present invention within the essence and protection scope of the present invention, and such modifications or equivalent substitutions shall also be deemed to fall within the protection scope of the present invention.

Claims

1. A counterweight box for a traction elevator, comprising a box body, characterized in that: The box body comprises a top plate (1), a bottom plate (2), a side plate (3), and a counterweight cavity (4) enclosed therein; a plurality of positioning columns (5) are arranged between the top plate (1) and the bottom plate (2); a plurality of vertically arranged large counterweight blocks (6) are arranged in the counterweight cavity (4); the large counterweight blocks (6) are snap-connected with the positioning columns (5); a positioning groove (7) extending from the side wall to the middle is provided on the large counterweight block (6); a fixing block (8) is installed on the positioning groove (7); a plurality of mounting grooves (10) capable of accommodating small counterweight blocks (9) are provided on the large counterweight block (6) at the top; the mounting grooves (10) are symmetrically distributed on the large counterweight block (6).

2. A counterweight box for a traction elevator according to claim 1, characterized in that: Positioning protrusions (11) are provided on both sides of the fixing block (8), and the positioning protrusions (11) are clamped with the large counterweight block (6) through positioning grooves (7).

3. A counterweight box for a traction elevator according to claim 2, characterized in that: Baffles (12) are provided on both sides of the side plate (3), and a plurality of bolt holes (13) are provided on the baffles (12). A fixing frame (14) is provided between the two baffles (12). The bottom of the fixing pin (15) passes through the fixing frame (14) and abuts against a pressure plate (16). The pressure plate (16) is located above the large counterweight block (6). An adjusting nut (17) is threadedly connected to the pin rod of the fixing pin (15), and the pressure plate (16) is slidably connected to the positioning column (5).

4. A counterweight box for a traction elevator according to claim 3, characterized in that: The fixing frame (14) is a U-shaped structure, and the side wall of the fixing frame (14) is bolted to the baffle (12).

5. A counterweight box for a traction elevator according to claim 4, characterized in that: Extended protrusions (18) are provided at both ends of the pressure plate (16), and the extended protrusions (18) are located between the two baffles (12).

6. A counterweight box for a traction elevator according to claim 5, characterized in that: The large counterweight block (6) at the top is provided with a through slot (19) which penetrates the large counterweight block (6) longitudinally, and the through slot (19) and the mounting slot (10) are perpendicular to each other.

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