8: 1 four-row counterweight housing structure applied to super-large-load cargo elevator

Abstract

An 8: 1 four-row counterweight housing structure applied to an ultra-large load-carrying cargo elevator comprises at least two counterweight units which are adjacent front and back, and the two counterweight units are detachably connected together through splicing bolts, so that each counterweight unit can be independently boxed and transported and then assembled on site. Compared with a traditional counterweight housing structure, the counterweight housing structure has the advantages that the convenience and flexibility of boxing, transportation and installation of the counterweight housing structure are greatly improved, and the assembly cost and the transportation cost are greatly reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of elevators, in particular to an 8:1 four-row counterweight frame structure applied to an ultra-large load freight elevator. Background Art

[0002] With the development of the economy, elevators are being used more and more widely, and factory managers are placing higher and higher demands on the load capacity of elevators. When carrying heavier cargo, a larger counterweight is required to meet the requirements of mechanical balance.

[0003] Existing large-load elevators generally use double-row counterweight devices, such as the multi-traction ratio counterweight device disclosed in the technical solution of patent number CN202022725876.6, which includes a counterweight frame group, a counterweight block, a counterweight pulley, a return rope pulley and a traction drive unit; the counterweight frame group is composed of two rows of counterweight units connected, and each row of counterweight units is composed of at least two counterweight frames with the same structure; the counterweight blocks are stacked in the space within the counterweight frame; the multi-traction ratio counterweight device suitable for large-load elevators of this technical solution is structurally stable and has a high safety factor. At the same time, the multi-traction ratio counterweight device can meet the use requirements of different traction ratios and is particularly suitable for use in large-tonnage multi-traction ratio freight elevator structures. However, the counterweight frame of the counterweight frame group does not adopt a modular connection structure, resulting in the overall structure of the counterweight frame being too large. Before installation, the staff needs to consume a lot of manpower and material resources to transport it to the designated location for installation, resulting in high transportation and installation costs. Utility Model Content

[0004] In order to overcome the deficiencies of the prior art, the utility model provides an 8:1 four-row counterweight frame structure for use on an ultra-large load freight elevator.

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

[0006] An 8:1 four-row counterweight frame structure for use in an ultra-large load freight elevator, characterized in that it comprises at least two front-to-rear adjacent counterweight units, each of which comprises a left counterweight frame, a right counterweight frame, and a first connecting beam and a second connecting beam for fixing the left and right counterweight frames together;

[0007] The left counterweight frame and the right counterweight frame each include an upper beam, a middle beam, a lower beam, a front column and a rear column, wherein the upper beam, the middle beam and the lower beam are sequentially arranged at intervals from top to bottom and the front and rear ends are fixedly connected to the front column and the rear column respectively;

[0008] The left and right ends of the first connecting beam are respectively connected to the bottom of the upper beam of the left counterweight frame and the bottom of the upper beam of the right counterweight frame in the same counterweight unit, and the left and right ends of the second connecting beam are respectively connected to the bottom of the lower beam of the left counterweight frame and the bottom of the lower beam of the right counterweight frame in the same counterweight unit;

[0009] In the two adjacent counterweight units, the rear column of the front left counterweight frame and the front column of the rear left counterweight frame, as well as the rear column of the front right counterweight frame and the front column of the rear right counterweight frame are all fitted to each other and detachably connected with splicing bolts.

[0010] In the present invention, the front column and the rear column are each provided with at least two splicing hole arrays arranged from top to bottom, and each splicing hole array includes a plurality of splicing through holes arranged horizontally and vertically. When the front column and the rear column are fitted together, each splicing through hole on the front column corresponds to a splicing through hole on the rear column, and the screw end of the splicing bolt passes through the two corresponding splicing through holes and is threadedly connected to a splicing locking nut.

[0011] In the present invention, a sheave installation space is formed between the upper beam and the middle beam, and two pairs of return sheaves arranged from front to back are provided in each sheave installation space, and the pairs of return sheaves are installed on the upper beam.

[0012] In the present invention, the left counterweight frame and the right counterweight frame also include multiple counterweight arrays and at least two intermediate columns arranged from front to back between the front column and the rear column; counterweight installation space is formed between the front column and the intermediate column, between the rear column and the intermediate column, and between two adjacent intermediate columns in front and behind, and one counterweight array is installed in each counterweight installation space. The bottom of the counterweight array is supported by the top of the lower beam, and the top is provided with at least one counterweight fixing device located below the middle beam for pressing and fixing.

[0013] In the present invention, each counterweight array includes a plurality of counterweight blocks stacked from top to bottom in a counterweight installation space, and counterweight positioning grooves are provided at the front and rear ends of the counterweight installation space, and positioning protrusions are provided at the front and rear ends of the counterweight blocks, which are respectively positioned and fitted in the two counterweight positioning grooves.

[0014] In the present invention, two counterweight limiting parts distributed on the left and right are provided at the front and rear ends of the counterweight installation space. The counterweight limiting parts are formed by the protrusions on the front column, the rear column and the middle column. The two corresponding counterweight limiting parts on the left and right form the counterweight positioning groove for the positioning protrusion to be inserted and matched for positioning. The front and rear ends of the counterweight fixing device are respectively connected to the two adjacent counterweight limiting parts in the front and rear.

[0015] In the present invention, the upper beam includes two upper beam halves respectively located on the left and right sides of the front column and the rear column, the front and rear ends of the upper beam halves are respectively fixedly connected to the upper end parts of the front column and the rear column by bolt connection, and an upper counterweight rope pulley avoidance space is formed between the two upper beam halves; the middle beam is located below the upper beam, and a lower counterweight rope pulley avoidance space is formed between the middle beam and the upper beam, and the lower parts of the return rope pulleys are extended into the lower counterweight rope pulley avoidance space, and the upper counterweight rope pulley avoidance space and the lower counterweight rope pulley avoidance space constitute the rope pulley installation space.

[0016] In the present invention, two adjacent lower beam seats on the left and right are connected to a second connecting beam.

[0017] In the present invention, two counterweight stop rope assemblies are provided on the left counterweight frame and the right counterweight frame, and the two counterweight stop rope assemblies correspond to two return rope pulleys respectively. The counterweight stop rope assembly includes a lower counterweight stop rope member corresponding to the lower side of the return rope pulley and two side counterweight stop rope members corresponding to the front and rear sides of the return rope pulley respectively, wherein the front and rear ends of the side counterweight stop rope member are respectively connected to the bottom of the two upper beam halves; the upper end of the counterweight stop rope assembly is arranged close to the lower side of the return rope pulley, and the lower end is inserted between the two middle beam halves of the same middle beam, and the left and right sides of the lower end of the lower counterweight stop rope member are respectively fixedly connected to the two middle beam halves.

[0018] The beneficial effects of this utility model are as follows: The counterweight frame structure of the utility model includes two counterweight units, which are detachably connected together using splicing bolts. Therefore, each counterweight unit can be individually packaged and transported, and then assembled on site. Compared with traditional counterweight frame structures, this counterweight frame structure greatly improves the convenience and flexibility of packaging, transportation, and installation of the counterweight frame structure, and significantly reduces assembly and transportation costs. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0020] Figure 1 Schematic diagram of the separation arrangement between two counterweight units;

[0021] Figure 2 It is a schematic diagram of two counterweight units combined together;

[0022] Figure 3 It is a three-dimensional diagram of the counterweight unit;

[0023] Figure 4 for Figure 3 Enlarged view of part A;

[0024] Figure 5 It is a schematic diagram of the combination of the left counterweight frame and the right counterweight frame;

[0025] Figure 6 This is a three-dimensional view of the left counterweight frame. DETAILED DESCRIPTION

[0026] 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.

[0027] 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.

[0028] 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.

[0029] Reference Figure 1-6 An 8:1 four-row counterweight frame structure used in an ultra-large load freight elevator includes two adjacent counterweight units, each of which includes a left counterweight frame 10, a right counterweight frame 20, and a first connecting beam 30 and a second connecting beam 40 that fix the left counterweight frame 10 and the right counterweight frame 20 together;

[0030] Furthermore, the left counterweight frame 10 and the right counterweight frame 20 each include an upper beam 1, a middle beam 2, a lower beam 3, a front column 4 and a rear column 5, and the upper beam 1, the middle beam 2 and the lower beam 3 are arranged in sequence from top to bottom and the front and rear ends are respectively fixedly connected to the front column 4 and the rear column 5; the left and right ends of the first connecting beam 30 are respectively connected to the bottom of the upper beam 1 of the left counterweight frame 10 and the bottom of the upper beam 1 of the right counterweight frame 20 in the same counterweight unit, and the left and right ends of the second connecting beam 40 are respectively connected to the bottom of the lower beam 3 of the left counterweight frame 10 and the bottom of the lower beam 3 of the right counterweight frame 20 in the same counterweight unit, so that the left counterweight frame 10 and the right counterweight frame 20 of each counterweight unit are combined and fixed together;

[0031] Furthermore, in the two adjacent counterweight units, the rear column 5 of the front left counterweight frame 10 and the front column 4 of the rear left counterweight frame 10, as well as the rear column 5 of the front right counterweight frame 20 and the front column 4 of the rear right counterweight frame 20, are all in contact with each other and are detachably connected using splicing bolts. Specifically, the front column 4 and the rear column 5 are each provided with at least two arrays of splicing holes arranged from top to bottom, each array of splicing holes including a plurality of splicing through holes arranged horizontally and vertically. When the front column 4 and the rear column 5 are in contact with each other, each splicing through hole on the front column 4 is connected to a corresponding splicing through hole on the rear column 5. The screw end of the splicing bolt passes through the two correspondingly connected splicing through holes and is then threadedly connected to a splicing locking nut, thereby achieving combined fixation of the front column 4 and the rear column 5 after they are in contact with each other.

[0032] The counterweight frame structure of this utility model comprises two counterweight units, which are detachably connected using splicing bolts. This allows each unit to be individually packaged and transported before being assembled on-site. Compared to traditional counterweight frames, this structure significantly improves the convenience and flexibility of packaging, transportation, and installation, significantly reducing assembly and transportation costs.

[0033] As a preferred embodiment, the left counterweight frame 10 and the right counterweight frame 20 also include multiple counterweight arrays 6 and at least two intermediate columns 7 arranged from front to back between the front column 4 and the rear column 5; a pulley installation space 400 is formed between the upper beam 1 and the middle beam 2, and each pulley installation space 400 is provided with two return pulleys 8 arranged from front to back, and the return pulleys 8 are installed on the upper beam 1.

[0034] Furthermore, a counterweight installation space 300 is formed between the front column 4 and the middle column 7, between the rear column 5 and the middle column 7, and between the two adjacent middle columns 7 in front and behind. A counterweight array 6 is installed in each counterweight installation space 300. The bottom of the counterweight array 6 is supported by the top of the lower beam 3, and at least one counterweight fixing device 9 located below the middle beam 2 is provided on the top for pressing and fixing.

[0035] Furthermore, each counterweight array 6 includes a plurality of counterweight blocks 61 stacked from top to bottom within the counterweight installation space 300. Counterweight positioning grooves 50 are provided at the front and rear ends of the counterweight installation space 300, and positioning protrusions 62 are provided at the front and rear ends of the counterweight blocks 61, respectively positioned and matched within the two counterweight positioning grooves 50. Specifically, two left and right counterweight limiting portions 60 are provided at the front and rear ends of the counterweight installation space 300. The counterweight limiting portions 60 are formed by protrusions on the front column 4, the rear column 5, and the middle column 7. The two left and right corresponding counterweight limiting portions 60 form the counterweight positioning grooves 50 for the positioning protrusions 62 to be inserted and positioned. The front and rear ends of the counterweight fixing device 9 are respectively connected to the two front and rear adjacent counterweight limiting portions 60.

[0036] In this embodiment, the counterweight fixing device 9 includes a counterweight pressing member 91 for pressing against the top surface of the uppermost counterweight block 61 and two counterweight pressing locking blocks 92 respectively provided at the front and rear ends of the counterweight pressing member 91. The counterweight pressing locking blocks 92 are fixed to the counterweight pressing member 91 by counterweight bolts 93. A counterweight fixing clamping opening clamped on the counterweight limiting portion 60 is formed between the counterweight pressing locking blocks 92 and the counterweight pressing member 91. After loosening the counterweight bolts 93, the counterweight fixing device 9 can move up and down along the counterweight limiting portion 60, so that the counterweight pressing member 91 can move down to press on the top surface of the uppermost counterweight block 61 to compress the counterweight block 61, or the counterweight pressing member 91 can move upward away from the uppermost counterweight block 61 to release the corresponding counterweight block 61. This structure does not require opening a through hole on the counterweight frame for cooperating with the counterweight fixing device 9, so that installing the counterweight fixing device 9 will not affect the structural strength of the counterweight frame, effectively ensuring the overall structural stability of the counterweight frame.

[0037] As a preferred embodiment, the upper beam 1 includes two upper beam halves located on the left and right sides of the front column 4 and the rear column 5, respectively. The front and rear ends of the upper beam halves are fixedly connected to the upper ends of the front column 4 and the rear column 5 by bolt connection, and an upper counterweight pulley avoidance space is formed between the two upper beam halves.

[0038] In this embodiment, the middle beam 2 is located below the upper beam 1, and a lower counterweight rope pulley avoidance space is formed between the middle beam 2 and the upper beam 1. The lower parts of the re-entry rope pulleys 8 extend into the lower counterweight rope pulley avoidance space. The upper counterweight rope pulley avoidance space and the lower counterweight rope pulley avoidance space constitute the rope pulley installation space 400.

[0039] Furthermore, the center beam 2 includes two center beam halves, which are respectively located on the left and right sides of the front column 4 and the rear column 5. The front and rear ends of the center beam halves are fixedly connected to the two front columns 4 and the rear column 5 by bolt connection.

[0040] In this embodiment, the lower beam 3 includes two lower beam halves and a plurality of lower beam seats connecting the two lower beam halves. The lower ends of the front column 4, rear column 5, and middle column 7 all extend between the two lower beam halves and are fixedly connected to the lower beam halves by bolting. Furthermore, the plurality of lower beam seats are arranged from front to back, each of which includes a lower beam connecting seat 31 and a lower beam connecting plate 32. The lower beam connecting seat 31 is inserted between the two lower beam halves and fixedly connected to the two lower beam halves by bolting. The lower beam connecting plate 32 is located at the bottom of the two lower beam halves. The middle portion of the lower beam connecting plate 32 is fixedly connected to the lower beam connecting seat 31 by bolting, and the left and right ends are fixedly connected to the bottom surfaces of the two lower beam halves by bolting. In this way, the lower beam seats are used to enhance the installation stability of the two lower beam halves.

[0041] In addition, the two adjacent lower beam seats on the left and right are connected to a second connecting beam 40. The left and right ends of the lower beam connecting plate 32 respectively extend to the bottom of the two lower beam halves of the same lower beam 3. The left and right ends of the second connecting beam 40 are respectively connected to the lower beam connecting plates 32 of the two lower beam seats by bolt connection, so that the left counterweight frame 10 and the right counterweight frame 20 of the same counterweight unit are combined together.

[0042] In this embodiment, the top and bottom of the front column 4 and the rear column 5 are provided with a counterweight mounting plate 70. The upper counterweight mounting plate 70 is fixedly connected to the two upper beam halves of the same upper beam 1 by a bolt connection method, and the lower counterweight mounting plate 70 is fixedly connected to the two lower beam halves of the same lower beam 3 by a bolt connection method, so as to improve the installation quality of the upper beam halves and the lower beam halves. A counterweight guide shoe 80 for cooperating with the counterweight guide rail is installed on each counterweight mounting plate 70.

[0043] The left and right sides of the lower end of the lower counterweight stop rope member 901 are fixedly connected to the two middle beam halves respectively, so that the lower counterweight stop rope member 901 can prevent the traction rope from slipping off the return rope sheave 8 while strengthening the connection stability between the two middle beam halves.

[0044] 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. An 8:1 four-row counterweight structure used in an ultra-large freight elevator, characterized by: The invention comprises at least two counterweight units adjacent to each other in front and behind, each of the counterweight units comprising a left counterweight frame (10), a right counterweight frame (20), and a first connecting beam (30) and a second connecting beam (40) for fixing the left counterweight frame (10) and the right counterweight frame (20) together; The left counterweight frame (10) and the right counterweight frame (20) both comprise an upper beam (1), a middle beam (2), a lower beam (3), a front column (4) and a rear column (5); the upper beam (1), the middle beam (2) and the lower beam (3) are sequentially arranged at intervals from top to bottom and the front and rear ends are fixedly connected to the front column (4) and the rear column (5) respectively; The left and right ends of the first connecting beam (30) are respectively connected to the bottom of the upper beam (1) of the left counterweight frame (10) and the bottom of the upper beam (1) of the right counterweight frame (20) in the same counterweight unit, and the left and right ends of the second connecting beam (40) are respectively connected to the bottom of the lower beam (3) of the left counterweight frame (10) and the bottom of the lower beam (3) of the right counterweight frame (20) in the same counterweight unit; In the two adjacent counterweight units, the rear column (5) of the front left counterweight frame (10) and the front column (4) of the rear left counterweight frame (10), as well as the rear column (5) of the front right counterweight frame (20) and the front column (4) of the rear right counterweight frame (20) are all attached to each other and detachably connected by splicing bolts.

2. The 8:1 four-row counterweight frame structure used in an ultra-large load freight elevator according to claim 1 is characterized in that: The front column (4) and the rear column (5) are each provided with at least two splicing hole arrays arranged from top to bottom, each splicing hole array includes a plurality of splicing through holes arranged horizontally and vertically. When the front column (4) and the rear column (5) are fitted together, each splicing through hole on the front column (4) is connected to a splicing through hole on the rear column (5). The screw end of the splicing bolt passes through the two splicing through holes connected to each other and is threadedly connected to a splicing locking nut.

3. The 8:1 four-row counterweight structure used in an ultra-large freight elevator according to claim 1 is characterized in that: A rope pulley installation space (400) is formed between the upper beam (1) and the middle beam (2), and two pairs of return rope pulleys (8) arranged from front to back are provided in each rope pulley installation space (400), and the pairs of return rope pulleys (8) are installed on the upper beam (1).

4. The 8:1 four-row counterweight frame structure used in an ultra-large load freight elevator according to claim 1 is characterized in that: The left counterweight frame (10) and the right counterweight frame (20) also each include a plurality of counterweight arrays (6) and at least two intermediate columns (7) arranged from front to back between the front column (4) and the rear column (5); a counterweight installation space (300) is formed between the front column (4) and the intermediate column (7), between the rear column (5) and the intermediate column (7), and between two adjacent intermediate columns (7) in front and back, and one counterweight array (6) is installed in each counterweight installation space (300). The bottom of the counterweight array (6) is supported by the top of the lower beam (3), and the top is provided with at least one counterweight fixing device (9) located below the middle beam (2) for pressing and fixing.

5. The 8:1 four-row counterweight frame structure used in an ultra-large load freight elevator according to claim 4 is characterized in that: Each counterweight array (6) comprises a plurality of counterweight blocks (61) stacked from top to bottom in a counterweight installation space (300), wherein counterweight positioning grooves (50) are provided at both front and rear ends of the counterweight installation space (300), and positioning protrusions (62) are provided at both front and rear ends of the counterweight blocks (61) for positioning and fitting in the two counterweight positioning grooves (50), respectively.

6. The 8:1 four-row counterweight frame structure used in an ultra-large load freight elevator according to claim 5 is characterized in that: Two counterweight limiting parts (60) distributed on the left and right are provided at the front and rear ends of the counterweight installation space (300). The counterweight limiting parts (60) are formed by convex parts on the front column (4), the rear column (5) and the middle column (7). The two corresponding counterweight limiting parts (60) on the left and right form the counterweight positioning groove (50) for the positioning convex part (62) to be inserted into for matching positioning. The front and rear ends of the counterweight fixing device (9) are respectively connected to the two adjacent counterweight limiting parts (60) on the front and rear.

7. The 8:1 four-row counterweight structure used in an ultra-large load freight elevator according to claim 3 is characterized by: The upper beam (1) comprises two upper beam halves respectively located on the left and right sides of the front column (4) and the rear column (5), the front and rear ends of the upper beam halves being fixedly connected to the upper ends of the front column (4) and the rear column (5) by bolt connection, and an upper counterweight rope pulley avoidance space is formed between the two upper beam halves; the middle beam (2) is located below the upper beam (1), and a lower counterweight rope pulley avoidance space is formed between the middle beam (2) and the upper beam (1), the lower parts of the return rope pulleys (8) are both extended into the lower counterweight rope pulley avoidance space, and the upper counterweight rope pulley avoidance space and the lower counterweight rope pulley avoidance space constitute the rope pulley installation space (400).

8. The 8:1 four-row counterweight structure used in an ultra-large load freight elevator according to claim 7 is characterized in that: Two adjacent lower beam seats on the left and right are connected to a second connecting beam (40) together.

9. The 8:1 four-row counterweight frame structure used in an ultra-large load freight elevator according to claim 7, characterized in that: Two counterweight rope stop assemblies are provided on the left counterweight frame (10) and the right counterweight frame (20), and the two counterweight rope stop assemblies correspond to the two return rope pulleys (8) respectively. The counterweight rope stop assemblies include a lower counterweight rope stop member (901) corresponding to the lower side of the return rope pulley (8) and two side counterweight rope stop members (902) corresponding to the front and rear sides of the return rope pulley (8), wherein the front and rear ends of the side counterweight rope stop members (902) are respectively connected to the bottom of the two upper beam halves; the upper end of the counterweight rope stop assembly is arranged close to the lower side of the return rope pulley (8), and the lower end is inserted between the two middle beam halves of the same middle beam (2), and the left and right sides of the lower end of the lower counterweight rope stop member (901) are respectively fixedly connected to the two middle beam halves.

Images