Counterweight structure applied to super-large-load cargo elevator

Abstract

A counter-weight structure applied to an ultra-large load cargo elevator comprises counter-weight modules, each counter-weight module comprises a counter-weight frame, each counter-weight frame comprises an upper beam, a lower beam, a front stand column and a rear stand column, and the front ends and the rear ends of the upper beams and the lower beams are fixedly connected with the front stand columns and the rear stand columns correspondingly; a counterweight wheel space is arranged on the upper portion of each counterweight frame, and a rope returning wheel, two side rope blocking pieces corresponding to the front side and the rear side of the rope returning wheel respectively and a lower rope blocking piece corresponding to the lower side of the rope returning wheel are arranged in each counterweight wheel space. The lower rope blocking piece comprises an inner rope blocking supporting plate, a left rope blocking vertical plate, a rope blocking flat plate and a right rope blocking vertical plate, the left rope blocking vertical plate, the rope blocking flat plate and the right rope blocking vertical plate are sequentially connected to form an n shape, the rope blocking flat plate corresponds to the position under the rope returning wheel, and the inner rope blocking supporting plate is located in an encircling ring defined by the left rope blocking vertical plate, the rope blocking flat plate and the right rope blocking vertical plate. The inner rope blocking supporting plate is fixedly connected with the left rope blocking vertical plate, the rope blocking flat plate and the right rope blocking vertical plate at the same time. Abnormal movement of the steel wire rope can be stably reduced, and stable operation of the traction machine can be maintained.

Description

Technical Field

[0001] The utility model relates to the technical field of elevators, and particularly relates to a counterweight structure applied to an extra-large load freight elevator. Background Art

[0002] A counterweight is a device that moves up and down relative to the car in an elevator. A counterweight is provided on the counterweight frame to form a balance of the weights at both ends of the traction machine, reduce the working load required by the traction machine, and help reduce energy consumption.

[0003] Referring to the counterweight frame disclosed in the technical solution of patent CN202121464229.2, the current counterweight frame usually has a rope retaining frame below the counterweight wheel to retain the rope for the counterweight wheel. However, the rope retaining frame of this structure is U-shaped and has no support structure inside, resulting in relatively low structural stability. After the steel wire rope collides with the rope retaining frame, the flat part in the middle of the rope retaining frame is prone to bending deformation, resulting in the inability to effectively block the steel wire rope and an easy risk of the steel wire rope slipping off the counterweight wheel. Summary of the Utility Model

[0004] In order to overcome the deficiencies of the prior art, the utility model provides a counterweight structure applied to an extra-large load freight elevator.

[0005] The technical solution adopted by the utility model to solve its technical problems is as follows:

[0006] A counterweight structure applied to an extra-large load freight elevator includes counterweight modules. Each counterweight module includes a counterweight frame, and each counterweight frame includes an upper beam, a lower beam, a front column, and a rear column. The upper beam and the lower beam are arranged at intervals from top to bottom, and both the front and rear ends are respectively fixedly connected to the front column and the rear column.

[0007] Each upper part of the counterweight frame has a counterweight wheel space, and the counterweight wheel space is provided with a rope return wheel, two side rope retaining members respectively corresponding to the front and rear sides of the rope return wheel, and a lower rope retaining member corresponding to the lower side of the rope return wheel.

[0008] The lower rope retaining member includes an inner rope retaining support plate and a left rope retaining vertical plate, a rope retaining flat plate, and a right rope retaining vertical plate that are sequentially connected into a U-shaped. The rope retaining flat plate corresponds to directly below the rope return wheel. The inner rope retaining support plate is located within the enclosed circle formed by the left rope retaining vertical plate, the rope retaining flat plate, and the right rope retaining vertical plate, and the inner rope retaining support plate is fixedly connected to the left rope retaining vertical plate, the rope retaining flat plate, and the right rope retaining vertical plate at the same time.

[0009] In the utility model, a middle beam is provided on both the left and right sides of the counterweight frame below the rope return wheel, and the left rope retaining vertical plate and the right rope retaining vertical plate are respectively connected to the two middle beams.

[0010] In the present utility model, at least two vertically elongated rope retaining round holes are provided on both the left rope retaining vertical plate and the right rope retaining vertical plate. The length direction of the vertically elongated rope retaining round holes extends in the vertical direction, and a rope retaining locking bolt threadedly connected to the middle beam is inserted through the vertically elongated rope retaining round holes.

[0011] In the present utility model, the counterweight module includes four counterweight frames that are arranged vertically and horizontally and are combined and connected together.

[0012] In the present utility model, within the same counterweight module, the rear column of the front counterweight frame and the front column of the rear counterweight frame are tightly and adhesively connected by splicing bolts, and the lower beams of the left counterweight frame and the right counterweight frame are combined and connected by a first connecting beam.

[0013] In the present utility model, each counterweight frame further includes at least two intermediate columns arranged from front to back between the front column and the rear column. The inner side of the middle beam is connected to the upper ends of the intermediate columns by means of bolt connection, and a counterweight wheel space is formed between the upper part of the intermediate columns and the upper beam.

[0014] In the present utility model, the upper beam includes two upper beam half bodies distributed left and right. The upper ends of the front column and the rear column are both located between the two upper beam half bodies; the front and rear ends of the upper beam half bodies are respectively fixedly connected to the upper ends of the front column and the rear column, and a counterweight wheel avoidance space is formed between the two upper beam half bodies.

[0015] In the present utility model, the side rope retaining member is made of angle steel.

[0016] In the present utility model, both the front and rear ends of the side rope retaining member are respectively connected to the bottoms of the two upper beam half bodies by rope retaining bolt assemblies.

[0017] In the present utility model, two side rope retaining vertically elongated round holes corresponding to the two upper beam half bodies are provided on the side rope retaining member. The length direction of the side rope retaining vertically elongated round holes extends longitudinally. Side rope retaining horizontally elongated round holes corresponding to the side rope retaining vertically elongated round holes are provided on the upper beam half body. The length direction of the side rope retaining horizontally elongated round holes extends transversely. A rope retaining bolt assembly is commonly inserted and installed through the corresponding side rope retaining vertically elongated round holes and side rope retaining horizontally elongated round holes.

[0018] The beneficial effects of the present utility model: Through the supporting effect of the inner rope retaining support plate, it effectively prevents the rope retaining flat plate from bending and deforming when collided by the steel wire rope, ensuring that the rope retaining member can effectively prevent the steel wire rope from slipping off the return rope wheel; moreover, the combination of the U-shaped design and the inner rope retaining support plate, as well as the direct connection of the middle beam, significantly improves the structural strength and durability of the entire lower rope retaining member, thereby stably reducing the abnormal movement of the steel wire rope and contributing to the smooth operation of the traction machine. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The present invention is further described below with reference to the accompanying drawings and embodiments:

[0020] Figure 1 It is a three-dimensional diagram of the counterweight structure;

[0021] Figure 2 This is a perspective view of the counterweight module;

[0022] Figure 3 It is a three-dimensional diagram of the lower rope stop;

[0023] Figure 4 This is a perspective view of the counterweight frame;

[0024] Figure 5 This is a cross-sectional view of the counterweight module. DETAILED DESCRIPTION

[0025] In order to make the purpose, 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 in conjunction with the drawings in the embodiments of the present invention.

[0026] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, top, bottom, inside, outside, vertical, horizontal, longitudinal, counterclockwise, clockwise, circumferential, radial, axial...), then the directional indications are only used to explain the relative position relationship, movement status, etc. between the various components in a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indications will also change accordingly.

[0027] In addition, if there are descriptions involving "first" or "second" in the embodiments of the present invention, the descriptions of "first" or "second" are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features specified as "first" or "second" may explicitly or implicitly include at least one of such features. In addition, the technical solutions between the various embodiments can be combined with each other, but this must be based on the fact that ordinary technicians in this field can implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0028] Reference Figure 1-5, A counterweight structure applied to an extra-large load freight elevator, including three counterweight modules arranged from front to back. The counterweight structure includes three counterweight modules arranged from front to back. Each counterweight module includes four counterweight frames 100 arranged vertically and horizontally and combined and connected together. Each counterweight frame 100 includes an upper beam 1, a lower beam 2, a front column 3, and a rear column 4. The upper beam 1 and the lower beam 2 are arranged at intervals from top to bottom, and both the front and rear ends are respectively fixedly connected to the front column 3 and the rear column 4.

[0029] A counterweight wheel space is provided at the upper part of each counterweight frame 100. In the counterweight wheel space, there is a return rope wheel 5, two side rope retaining members 6 respectively corresponding to the front and rear sides of the return rope wheel 5, and a lower rope retaining member 7 corresponding to the lower side of the return rope wheel 5. The return rope wheel 5 and the side rope retaining members 6 are both installed on the bottom of the upper beam 1. On both the left and right sides of the counterweight frame 100, there is a middle beam 8 located below the return rope wheel 5. The front and rear ends of the middle beam 8 are respectively fixedly connected to the two front columns 3 and the rear columns 4 by means of bolt connection; the lower rope retaining member 7 is located between the two middle beams 8. The lower rope retaining member 7 includes an inner rope retaining support plate 71 and a left rope retaining vertical plate 72, a rope retaining flat plate 73, and a right rope retaining vertical plate 74 that are sequentially connected into a "冂" shape. The rope retaining flat plate 73 corresponds to directly below the return rope wheel 5 and is used for rope retaining; the inner rope retaining support plate 71 is located within the enclosed circle formed by the left rope retaining vertical plate 72, the rope retaining flat plate 73, and the right rope retaining vertical plate 74. The inner rope retaining support plate 71 is fixedly connected to the left rope retaining vertical plate 72, the rope retaining flat plate 73, and the right rope retaining vertical plate 74 at the same time. The left rope retaining vertical plate 72 and the right rope retaining vertical plate 74 are respectively connected to the two middle beams 8, so that the lower rope retaining member 7 can prevent the traction rope from slipping off the return rope wheel 5 while strengthening the stability between the two middle beams 8. The above technical solution effectively prevents the rope retaining flat plate 73 from bending and deforming when collided by the steel wire rope through the support of the inner rope retaining support plate 71, ensuring that the rope retaining member can effectively block the steel wire rope from slipping off the return rope wheel 5; moreover, the combination of the "冂" shape design and the inner rope retaining support plate 71, as well as the direct connection of the middle beam 8, significantly improves the structural strength and durability of the entire lower rope retaining member 7, thereby stably reducing the abnormal movement of the steel wire rope and contributing to the smooth operation of the traction machine.

[0030] In this embodiment, at least two vertical long round holes 75 for rope retaining are provided on both the left rope retaining vertical plate 72 and the right rope retaining vertical plate 74. The length direction of the vertical long round holes 75 for rope retaining extends in the vertical direction, and a rope retaining locking bolt threadedly connected to the middle beam 8 is inserted into the vertical long round holes 75 for rope retaining. After loosening the rope retaining locking bolt, the position of the lower rope retaining member 7 can be moved up and down to facilitate better rope retaining.

[0031] As a preferred embodiment, in the same counterweight module, the rear column 4 of the front counterweight frame 100 and the front column 3 of the rear counterweight frame 100 are connected by splicing bolts, and the lower beam 2 of the left counterweight frame 100 and the lower beam 2 of the right counterweight frame 100 are connected in combination by a first connecting beam 30; so that the four counterweight frames 100 of each counterweight module are combined and fixed together. Each counterweight module of the present invention includes four counterweight frames 100, and the counterweight frames 100 are detachably connected together, so that each counterweight frame 100 can be individually packed and transported, and then assembled on site. Compared with the traditional counterweight structure, the above-mentioned counterweight structure greatly improves the convenience and flexibility of the packing, transportation, and installation of the counterweight structure, and greatly reduces the assembly cost and transportation cost.

[0032] As a preferred embodiment, the counterweight frame 100 further includes at least two intermediate columns 9 arranged from front to back between the front columns 3 and the rear columns 4. The inner side of the center beam 8 is bolted to the upper end of the intermediate columns 9, and the counterweight wheel space is formed between the upper end of the intermediate columns 9 and the upper beam 1. The connection between the center beam 8 and the front columns 3, rear columns 4, and intermediate columns 9 effectively ensures the stability of the connection between them, thereby achieving the purpose of improving the structural strength of the counterweight frame 100.

[0033] Furthermore, counterweight installation spaces are formed between the front column 3 and the middle column 9, between the rear column 4 and the middle column 9, and between the two adjacent middle columns 9 in front and behind. A counterweight array 10 is installed in each counterweight installation space. The bottom of the counterweight array 10 is supported by the top of the lower beam 2, and the top is provided with at least one counterweight fixing device 20 located below the middle beam 8 for pressing and fixing. The counterweight fixing device 20 is connected to the front column 3 and the rear column 4 and is located below the middle beam 8, thereby realizing the installation of the counterweight array 10.

[0034] Furthermore, each counterweight array 10 includes a plurality of counterweight blocks stacked from top to bottom within a counterweight installation space. Counterweight positioning grooves are provided at both the front and rear ends of the counterweight installation space, and positioning protrusions are provided at both the front and rear ends of the counterweight blocks, respectively positioned and mated within the two counterweight positioning grooves. Specifically, two left-to-right distributed counterweight limiting portions are provided at both the front and rear ends of the counterweight installation space. The counterweight limiting portions are formed by protrusions on the front column 3, the rear column 4, and the middle column 9. The two corresponding left and right counterweight limiting portions form the counterweight positioning grooves into which the positioning protrusions are inserted and positioned. The front and rear ends of the counterweight fixing device 20 are respectively connected to the two adjacent front and rear counterweight limiting portions.

[0035] In this embodiment, the counterweight fixing device 20 includes a counterweight pressing member 201 for pressing against the top surface of the uppermost counterweight block and two counterweight pressing locking blocks 202 respectively provided at the front and rear ends of the counterweight pressing member 201. The counterweight pressing locking blocks 202 are fixed to the counterweight pressing member 201 by counterweight bolts, and a counterweight fixing clamping opening clamped on the counterweight limiting portion is formed between the counterweight pressing locking blocks 202 and the counterweight pressing member 201. After the counterweight bolts are loosened, the counterweight fixing device 20 can move up and down along the counterweight limiting portion, so that the counterweight pressing member 201 can move down to press on the top surface of the uppermost counterweight block to compress the counterweight block, or the counterweight pressing member 201 can move upward away from the uppermost counterweight block to release the corresponding counterweight block. This structure does not require a through hole to be provided on the counterweight frame 100 for cooperating with the counterweight fixing device 20 , so that the installation of the counterweight fixing device 20 will not affect the structural strength of the counterweight, thereby effectively ensuring the overall structural stability of the counterweight frame 100 .

[0036] As a preferred embodiment, the upper beam 1 includes two upper beam halves 11 distributed on the left and right, and the upper ends of the front column 3 and the rear column 4 are both located between the two upper beam halves 11; the front and rear ends of the upper beam half 11 are fixedly connected to the upper ends of the front column 3 and the rear column 4 by bolt connection, and a counterweight wheel avoidance space is formed between the two upper beam halves 11.

[0037] In this embodiment, the side rope stop member 6 is made of angle steel, which is easy to process and has high structural strength. The front and rear ends of the side rope stop member 6 are respectively connected to the bottom of the two upper beam halves 11 using rope stop bolt assemblies, so that the side rope stop member 6 can prevent the traction rope from slipping off the return rope wheel 5 while strengthening the connection stability of the two upper beam halves 11. Furthermore, the side rope retaining member 6 is provided with two side rope retaining longitudinal holes 61 corresponding to the two upper beam halves 11 respectively, and the length direction of the side rope retaining longitudinal holes 61 extends longitudinally, and the upper beam half 11 is provided with side rope retaining transverse holes 12 corresponding to the side rope retaining longitudinal holes 61, and the length direction of the side rope retaining transverse holes 12 extends transversely, and the corresponding side rope retaining longitudinal holes 61 and the side rope retaining transverse holes 12 are jointly interspersed with a rope retaining bolt assembly, which consists of a nut and a bolt. After loosening the nut, the position of the side rope retaining member 6 can be moved forward, backward, left and right, so that the side rope retaining member 6 can just retain the rope.

[0038] In this embodiment, the lower beam 2 includes two lower beam halves 21 and a plurality of lower beam seats 22 connecting the two lower beam halves 21. The lower ends of the front column 3, rear column 4, and middle column 9 all extend between the two lower beam halves 21 and are fixedly connected to the lower beam halves 21 by bolts. Furthermore, the plurality of lower beam seats 22 are arranged from front to back, each lower beam seat 22 including a lower beam connecting seat 221 and a lower beam connecting plate 222. The lower beam connecting seat 221 is inserted between the two lower beam halves 21 and fixedly connected to the two lower beam halves 21 by bolts. The lower beam connecting plate 222 is located at the bottom of the two lower beam halves 21. The middle portion of the lower beam connecting plate 222 is fixedly connected to the lower beam connecting seat 221 by bolts, and the left and right ends are fixedly connected to the bottom surfaces of the two lower beam halves 21 by bolts. In this way, the lower beam seats 22 are used to enhance the installation stability of the two lower beam halves 21.

[0039] In addition, the two adjacent lower beam seats 22 on the left and right are connected to a first connecting beam 30 together, and the left and right ends of the lower beam connecting plate 222 respectively extend to the bottom of the two lower beam halves 21 of the same lower beam 2. The left and right ends of the first connecting beam 30 are respectively connected to the lower beam connecting plates 222 of the two lower beam seats 22 by bolt connection, so that the left and right counterweight frames 100 of the same counterweight module are combined together.

[0040] The above description is only a preferred embodiment of the present invention. Any technical solution that achieves the purpose of the present invention by substantially the same means shall fall within the scope of protection of the present invention.

Claims

1. A counterweight structure applied to an extra-large load freight elevator, including counterweight modules. Each counterweight module includes a counterweight frame (100). The counterweight frame (100) includes an upper beam (1), a lower beam (2), a front column (3), and a rear column (4). The upper beam (1) and the lower beam (2) are arranged at intervals from top to bottom, and both the front and rear ends are fixedly connected to the front column (3) and the rear column (4) respectively. Each upper part of the counterweight frame (100) has a counterweight wheel space. Inside the counterweight wheel space, there is a rope return wheel (5), two side rope retaining members (6) respectively corresponding to the front and rear sides of the rope return wheel (5), and a lower rope retaining member (7) corresponding to the lower side of the rope return wheel (5). It is characterized in that: The lower rope retaining member (7) includes an inner rope retaining support plate (71) and a left rope retaining vertical plate (72), a rope retaining flat plate (73), and a right rope retaining vertical plate (74) that are sequentially connected into a U-shaped. The rope retaining flat plate (73) is located directly below the rope return wheel (5). The inner rope retaining support plate (71) is located inside the enclosure formed by the left rope retaining vertical plate (72), the rope retaining flat plate (73), and the right rope retaining vertical plate (74). The inner rope retaining support plate (71) is fixedly connected to the left rope retaining vertical plate (72), the rope retaining flat plate (73), and the right rope retaining vertical plate (74) at the same time.

2. The counterweight structure used in an ultra-large load freight elevator according to claim 1 is characterized in that: On both the left and right sides of the counterweight frame (100), there is a middle beam (8) located below the rope return wheel (5). The left rope retaining vertical plate (72) and the right rope retaining vertical plate (74) are respectively connected to the two middle beams (8).

3. The counterweight structure used in an ultra-large load freight elevator according to claim 2 is characterized in that: Both the left rope retaining vertical plate (72) and the right rope retaining vertical plate (74) are provided with at least two vertically long rope retaining round holes (75). The length direction of the vertically long rope retaining round holes (75) extends in the vertical direction. Rope retaining locking bolts threadedly connected to the middle beam (8) are inserted into the vertically long rope retaining round holes (75).

4. The counterweight structure used in an ultra-large load freight elevator according to claim 1 is characterized in that: The counterweight module includes four counterweight frames (100) distributed vertically and horizontally and combined and connected together.

5. The counterweight structure used in an ultra-large load freight elevator according to claim 3 is characterized in that: In the same counterweight module, the rear column (4) of the front counterweight frame (100) and the front column (3) of the rear counterweight frame (100) are locked and fitted together by splicing bolts. The lower beam (2) of the left counterweight frame (100) and the lower beam (2) of the right counterweight frame (100) are combined and connected by a first connecting beam (30).

6. The counterweight structure used in an ultra-large load freight elevator according to claim 2, characterized in that: The counterweight frame (100) also includes at least two intermediate columns (9) arranged from front to back between the front column (3) and the rear column (4). The inner side of the middle beam (8) is connected to the upper end of the intermediate column (9) by a bolt connection method. The counterweight wheel space is formed between the upper part of the intermediate column (9) and the upper beam (1).

7. The counterweight structure used in an ultra-large load freight elevator according to claim 1, characterized in that: The upper beam (1) includes two upper beam halves (11) distributed left and right. The upper ends of the front column (3) and the rear column (4) are both located between the two upper beam halves (11). The front and rear ends of the upper beam half (11) are fixedly connected to the upper ends of the front column (3) and the rear column (4) respectively. A counterweight wheel avoidance space is formed between the two upper beam halves (11).

8. The counterweight structure used in an ultra-large load freight elevator according to claim 1, characterized in that: The side rope retaining member (6) is made of angle steel.

9. The counterweight structure used in an ultra-large load freight elevator according to claim 1, characterized in that: The front and rear ends of the side rope retaining member (6) are respectively connected to the bottoms of the two upper beam halves (11) using rope retaining bolt assemblies.

10. The counterweight structure used in an ultra-large load freight elevator according to claim 9, characterized in that: The side rope retaining member (6) is provided with two side rope retaining longitudinal holes (61) corresponding to the two upper beam halves (11), and the length direction of the side rope retaining longitudinal holes (61) extends longitudinally. The upper beam halves (11) are provided with side rope retaining transverse holes (12) corresponding to the side rope retaining longitudinal holes (61), and the length direction of the side rope retaining transverse holes (12) extends transversely. The corresponding side rope retaining longitudinal holes (61) and the side rope retaining transverse holes (12) are jointly interspersed with rope retaining bolt assemblies.

Images