High-stability heavy-load cargo elevator

Abstract

The utility model discloses a high-stability heavy-load cargo elevator, which belongs to the technical field of cargo elevators and comprises a machine room, a counterweight, a car and a steel wire rope. A supporting assembly is fixedly installed in the machine room, and a guiding assembly and a traction wheel are fixedly installed on the supporting assembly. Three groups of counterweight guide wheels are fixedly mounted at the top of the counterweight at equal intervals; a car frame structure is fixedly mounted outside the car; the car frame structure comprises a main body structure and a reinforcing assembly, the main body structure is fixedly mounted on the outer wall of the car, and the reinforcing assembly is mounted on the main body structure; three groups of car roof guide wheels are fixedly mounted at the top of the main body structure; the middle of the steel wire rope sequentially penetrates through the car roof guide wheel, the guide assembly, the traction wheel and the counterweight guide wheel, and the guide assembly, the car roof guide wheel and the counterweight guide wheel are in transmission connection with the traction wheel through the steel wire rope. In this way, the front, middle and rear parts of the lift car are stressed together, stress is distributed through the three sets of car roof guide wheels, and balance is guaranteed while load is increased.

Description

Technical Field

[0001] The utility model relates to the technical field of freight elevators, and in particular to a large-load freight elevator with high stability. Background Art

[0002] Many factories now move into high-rise buildings to save land and economic costs, but many of the equipment are large and heavy, and the handling and daily production and transportation of the equipment have become obstacles to the operation of the factory. The factory can only install a few more 5-ton, 8-ton or 10-ton freight elevators for operation, which has caused a waste of economic and land costs; the area of ​​a 10-ton freight elevator is only 17 square meters. Some of the factory equipment is too large. The existing solution is to disassemble the equipment and transport it up and then assemble it, which is very troublesome. Some equipment cannot be disassembled and can only be transported up by hoisting; during the factory production and manufacturing process, some goods have a small density but occupy a very large area, which cannot be met by 8-ton and 10-ton areas, so a freight elevator with a larger tonnage and a larger area is needed to undertake these tasks.

[0003] For example, Chinese patent CN219807632U discloses a large-load freight elevator system and its machine room structure, in which both ends of the counterweight bearing beam of the device are respectively embedded in the main bearing beam and the auxiliary bearing beam, and the car bearing beam is arranged across the main bearing beam and the auxiliary bearing beam.

[0004] However, freight elevators have a large space and load capacity, so the layout structure and car frame design of the freight elevator should minimize the risk of overturning when the car is overloaded with rated load cargo, so that the entire car is stable and the entire car frame remains stable under extreme conditions.

[0005] Based on this, the utility model designs a high-stability heavy-duty freight elevator to solve the above problems. Utility Model Content

[0006] In view of the above-mentioned shortcomings of the prior art, the utility model provides a large-load freight elevator with high stability.

[0007] In order to achieve the above objectives, the present invention is implemented through the following technical solutions:

[0008] A high-stability heavy-load freight elevator comprises a machine room, a counterweight arranged in a counterweight shaft, a car arranged in an elevator shaft, and a steel wire rope;

[0009] A support assembly and a traction wheel are installed in the machine room, and a guide assembly is installed on the support assembly; three sets of counterweight guide wheels are rotatably installed at equal intervals on the top of the counterweight;

[0010] A car frame structure is fixedly installed on the outside of the car; the car frame structure includes a main structure and a reinforcement component, the main structure is fixedly installed on the outer wall of the car, and the reinforcement component is installed on the main structure; three sets of car top guide wheels are rotatably installed on the top of the main structure; guide shoes are symmetrically fixedly installed on the outer wall of the main structure; the guide shoes are limitedly slidably connected with the slide rails fixedly installed in the counterweight well;

[0011] Both ends of the wire rope are fixedly installed on the top of the machine room. The middle part of the wire rope passes through the car top guide wheel, guide assembly, traction wheel and counterweight guide wheel in sequence. The guide assembly, car top guide wheel and counterweight guide wheel are connected to the traction wheel through the wire rope.

[0012] Furthermore, the supporting assembly includes an I-beam, a foundation channel and a buffer channel. A plurality of I-beams are fixedly installed at equal intervals on the machine room, and a plurality of foundation channels are fixedly installed on the I-beam; each foundation channel is in contact with at least two I-beams; the I-beam is arranged horizontally, and the foundation channel is arranged longitudinally; the buffer channel is fixedly installed on the foundation channel, and a guide assembly is installed on the buffer channel.

[0013] Furthermore, the main structure includes a main car frame, an auxiliary car frame and a crossbeam, the main car frame is fixedly installed in the middle of the outer wall of the car, and the two groups of auxiliary car frames are symmetrically fixedly installed on both sides of the outer wall of the car; the crossbeam is fixedly installed on the upper side of the main car frame and the two groups of auxiliary car frames; two car top guide wheels are symmetrically installed on the top of the main car frame and the two groups of auxiliary car frames for rotation; guide shoes are symmetrically fixedly installed on both sides of the main car frame and the auxiliary car frame.

[0014] Furthermore, the guide assembly includes four first guide wheels and two second guide wheels; the four first guide wheels are rotatably mounted on the buffer channel steel, and the two second guide wheels are rotatably mounted on the buffer channel steel.

[0015] Furthermore, two first guide wheels are located above the car top guide wheel at the top of the leftmost auxiliary car frame, another first guide wheel is located above the car top guide wheel on the front side of the main car frame, and another first guide wheel is located above the car top guide wheel on the rear side of the rightmost auxiliary car frame; the two second guide wheels are located above the counterweight; one fixed end point of the wire rope is located above the car top guide wheel on the rear side of the main car frame, and the other fixed end point of the wire rope is located above the counterweight guide wheel on one side of the counterweight.

[0016] Furthermore, the wire rope passes through the two car top guide wheels on the main car frame, the first guide wheel above the main car frame, the first guide wheel located on the front side above the left auxiliary car frame, the two car top guide wheels on the left auxiliary car frame, the first guide wheel located on the rear side above the left auxiliary car frame, the first guide wheel located on the rear side above the right auxiliary car frame, the two car top guide wheels on the right auxiliary car frame, and the traction wheel in sequence, and then alternately passes through the three counterweight guide wheels on the counterweight and the two second guide wheels on the buffer channel steel.

[0017] Furthermore, the reinforcement component includes a diagonal channel steel and a diagonal tie rod. The diagonal channel steel is fixedly installed between the front side of the crossbeam and the bottom rear side of the car. Two diagonal channel steels are provided, and the two diagonal channel steels are symmetrically distributed on the left and right sides of the crossbeam; the diagonal tie rods are symmetrically installed between the middle and top of the main car frame and the lower crossbeam; the diagonal tie rods are installed between the middle part of the auxiliary car frame and the lower crossbeam; the two ends of the diagonal tie rods are respectively hinged to the crossbeam, the main car frame or the auxiliary car frame.

[0018] Furthermore, the reinforcement assembly also includes a diagonal bracing channel steel, and the diagonal bracing channel steel is fixedly installed between the upper crossbeam and the auxiliary car frame.

[0019] The utility model has the following technical effects:

[0020] 1. The utility model arranges three groups of car top guide wheels on the top of the main structure, so that the main structure can be stressed at the front, middle and rear. When the load in the car on the main structure increases, the force is evenly distributed through the three groups of single car top guide wheels, thereby increasing the balance and load capacity. At the same time, the tension of the steel wire rope on the main structure acts on the middle part of the main structure, which improves the balance of the main structure during operation, avoids the tension at the side suspension position of the main structure being greater than that at other positions, causing one side of the main structure to tilt, and causes the guide shoe lining of the outer wall of the main structure to rub against the guide rail, thereby reducing the running noise and increasing the service life of the guide shoe. The support strength of the main structure is increased by reinforcing the components, making the main structure more stable.

[0021] 2. From the perspective of the car frame, the utility model analyzes that the traditional freight elevator with a load of 8T and a traction ratio of 8:1 pulls the car frame under common force at the front and rear ends. This design pulls the car frame under common force at the front, middle and rear ends. Under the premise of ensuring stability, the average force on each car frame increases less when the load is increased; by selecting a suitable traction machine, the rated load can be expanded to 16 tons. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the prior art descriptions are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model, and for ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0023] Figure 1 It is a schematic diagram of wire rope transmission;

[0024] Figure 2 It is a top view of the machine room and its connecting structures;

[0025] Figure 3 Schematic diagram of the main car frame and its connection structure Figure 1 ;

[0026] Figure 4 Schematic diagram of the main car frame and its connection structure Figure 2 .

[0027] The numbers in the figure represent:

[0028] 1. Machine room; 2. Support assembly; 21. I-beam; 22. Foundation channel steel; 23. Buffer channel steel; 3. Guide assembly; 31. First guide wheel; 32. Second guide wheel; 4. Traction wheel; 5. Counterweight; 6. Car; 7. Car frame structure; 71. Main structure; 711. Main car frame; 712. Auxiliary car frame; 713. Crossbeam; 72. Reinforcement assembly; 721. Oblique-stayed channel steel; 722. Oblique tie rod; 723. Diagonal bracing channel steel; 8. Car top guide wheel; 9. Counterweight guide wheel; 10. Wire rope. DETAILED DESCRIPTION

[0029] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0030] The utility model is further described below in conjunction with embodiments.

[0031] The “left”, “right”, “front”, “back”, “up”, and “down” mentioned in the following description are oriented in the viewing direction of the front view.

[0032] Example 1

[0033] Please refer to the instruction manual Figure 1-3 , a high-stability heavy-load freight elevator, comprising a machine room 1, a counterweight 5 arranged in a counterweight shaft, a car 6 arranged in an elevator shaft, and a steel wire rope 10;

[0034] The machine room 1 is provided with a support assembly 2 and a traction wheel 4, and a guide assembly 3 is provided on the support assembly 2; three sets of counterweight guide wheels 9 are provided at equal intervals on the top of the counterweight 5;

[0035] A car frame structure 7 is fixedly installed on the outside of the car 6; the car frame structure 7 includes a main structure 71 and a reinforcement component 72, the main structure 71 is fixedly installed on the outer wall of the car 6, and the reinforcement component 72 is installed on the main structure 71; three groups of car top guide wheels 8 are rotatably installed on the top of the main structure 71; guide shoes are symmetrically fixedly installed on the outer wall of the main structure 71; the guide shoes are limitedly slidably connected with the slide rails fixedly installed in the counterweight well;

[0036] Both ends of the wire rope 10 are fixedly installed on the top of the machine room 1, and the middle part of the wire rope 10 passes through the car top guide wheel 8, the guide assembly 3, the traction wheel 4 and the counterweight guide wheel 9 in sequence. The guide assembly 3, the car top guide wheel 8 and the counterweight guide wheel 9 are connected to the traction wheel 4 through the wire rope 10.

[0037] In this embodiment, when this kind of high-stability heavy-load freight elevator is working normally, the guide assembly 3 and the traction wheel 4 are supported by the support assembly 2, and the guide assembly 3 and the traction wheel 4 support the car top guide wheel 8 and the counterweight guide wheel 9 through the wire rope 10 and the guide assembly 3, thereby supporting the counterweight 5 and the main structure 71; the main structure 71 supports the car 6; when the freight elevator is running, the traction wheel 4 drives the wire rope 10 to move, and the wire rope 10 drives the car top guide wheel 8 and the counterweight guide wheel 9 to move synchronously toward each other through the guide assembly 3, thereby driving the counterweight 5 and the main structure 71 to move synchronously toward each other; and then when the traction wheel 4 drives the main structure 71 to move through the wire rope 10, the guide assembly 3 and the car top guide wheel 8, the counterweight 5 and the main structure 71 move toward each other to reduce the load. The load of the traction wheel 4 is reduced, thereby achieving energy-saving effect; by arranging three groups of car top guide wheels 8 on the top of the main structure 71, the main structure 71 can be subjected to common force at the front, middle and rear. When the load in the car 6 on the main structure 71 increases, the force is evenly distributed through the three groups of single car top guide wheels 8 to increase balance and load-bearing capacity; at the same time, the pulling force of the wire rope 10 on the main structure 71 acts on the middle part of the main structure 71, which improves the balance of the main structure 71 during operation and avoids the pulling force at the side hanging position of the main structure 71 being greater than that at other positions, causing one side of the main structure 71 to tilt, so that the guide shoe lining on the outer wall of the main structure 71 rubs against the guide rail, thereby reducing operating noise and increasing the service life of the guide shoe; the supporting strength of the main structure 71 is increased by the reinforcement component 72, making the main structure 71 more stable.

[0038] Example 2

[0039] like Figure 1-4 As shown, as a preferred embodiment of the utility model, the support assembly 2 includes an I-beam 21 and a basic channel steel 22. A plurality of I-beams 21 are fixedly installed on the machine room 1 at equal intervals, and a plurality of basic channel steels 22 are fixedly installed on the I-beam 21; each basic channel steel 22 is in contact with at least two I-beams 21; the I-beam 21 is arranged horizontally, and the basic channel steel 22 is arranged longitudinally;

[0040] The support assembly 2 further includes a buffer channel steel 23, which is fixedly mounted on the base channel steel 22, and a guide assembly 3 is mounted on the buffer channel steel 23;

[0041] The main structure 71 includes a main car frame 711, an auxiliary car frame 712 and a crossbeam 713. The main car frame 711 is fixedly mounted in the middle of the outer wall of the car 6, and two sets of auxiliary car frames 712 are symmetrically fixedly mounted on both sides of the outer wall of the car 6; the crossbeam 713 is fixedly mounted on the upper side of the main car frame 711 and the two sets of auxiliary car frames 712; the tops of the main car frame 711 and the two sets of auxiliary car frames 712 are respectively symmetrically mounted with two car top guide wheels 8; guide shoes are symmetrically fixedly mounted on both sides of the main car frame 711 and the auxiliary car frame 712;

[0042] The guide assembly 3 includes four first guide wheels 31 and two second guide wheels 32; the four first guide wheels 31 are rotatably mounted on the buffer channel steel 23, and the two second guide wheels 32 are rotatably mounted on the buffer channel steel 23;

[0043] Two first guide wheels 31 are located above the car top guide wheel 8 at the top of the leftmost auxiliary car frame 712, another first guide wheel 31 is located above the car top guide wheel 8 at the front side of the main car frame 711, and another first guide wheel 31 is located above the car top guide wheel 8 at the rear side of the rightmost auxiliary car frame 712; two second guide wheels 32 are located above the counterweight 5; one fixed end point of the wire rope 10 is located above the car top guide wheel 8 at the rear side of the main car frame 711, and the other fixed end point of the wire rope 10 is located above the counterweight guide wheel 9 on one side of the counterweight 5;

[0044] The steel wire rope 10 passes through the two car top guide wheels 8 on the main car frame 711, the first guide wheel 31 located above the main car frame 711, the first guide wheel 31 located above the front side of the left auxiliary car frame 712, the two car top guide wheels 8 on the left auxiliary car frame 712, the first guide wheel 31 located above the rear side of the left auxiliary car frame 712, the first guide wheel 31 located above the rear side of the right auxiliary car frame 712, the two car top guide wheels 8 on the right auxiliary car frame 712, and the traction wheel 4 in sequence, and then alternately passes through the three counterweight guide wheels 9 on the counterweight 5 and the two second guide wheels 32 on the buffer channel steel 23;

[0045] The reinforcement assembly 72 includes an inclined channel steel 721 and an inclined tie rod 722. The inclined channel steel 721 is fixedly installed between the front side of the cross beam 713 and the bottom rear side of the car 6. Two inclined channel steels 721 are provided, and the two inclined channel steels 721 are symmetrically distributed on the left and right sides of the cross beam 713; the inclined tie rod 722 is symmetrically installed between the middle and top of the main car frame 711 and the lower cross beam 713; the inclined tie rod 722 is installed between the middle part of the auxiliary car frame 712 and the lower cross beam 713; the two ends of the inclined tie rod 722 are respectively hinged to the cross beam 713, the main car frame 711 or the auxiliary car frame 712;

[0046] The reinforcement assembly 72 further includes a diagonal bracing channel steel 723 , and the diagonal bracing channel steel 723 is fixedly installed between the upper cross beam 713 and the auxiliary car frame 712 .

[0047] In this embodiment, when the support assembly 2, the guide assembly 3 and the car frame structure 7 are working normally, the first guide wheel 31 and the second guide wheel 32 are installed on the buffer channel steel 23. The positions of the first guide wheel 31 and the second guide wheel 32 can be changed by adjusting the installation position of the buffer channel steel 23. The force borne by the first guide wheel 31 and the second guide wheel 32 on the buffer channel steel 23 is transmitted downward to the I-beam 21 through the base channel steel 22, so that the force is distributed to at least two I-beams 21 through the base channel steel 22, so that the force is more uniform; at the same time, the buffer channel steel 23 also raises the first guide wheel 31 and the second guide wheel 32 to reserve enough space for the wire rope 10 to pass through the first guide wheel 31 and the second guide wheel 32; the wire rope 10 is guided by the first guide wheel 31 so that the wire rope 10 The car top guide wheels 8 on the main car frame 711 and the car top guide wheels 8 on the auxiliary car frames 712 on both sides are sequentially passed through. The overall force of the main car frame 711 and the auxiliary car frame 712 is concentrated in the middle part, so as to avoid one side tilting up and causing the main car frame 711 and the auxiliary car frame 712 to tilt as a whole, causing the guide shoe to rub against the guide rail; the force on the bottom of the car 6 is transmitted to the upper crossbeam 713 through the inclined channel steel 721, so as to avoid the bottom load causing the main car frame 711, the auxiliary car frame 712, and the car 6 related equipment to deform; the inclined rod 722, the diagonal bracing channel steel 723, the main car frame 711 and the auxiliary car frame 712 form a plurality of triangles, which increase the stability between the main car frame 711 and the auxiliary car frame 712. If the car 6 is raised at a later stage, the stability of the structure can be ensured by lengthening the inclined rod 722 and the diagonal bracing channel steel 723.

[0048] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. Such modifications or replacements will not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A high-stability heavy-load freight elevator, comprising a machine room (1), a counterweight (5) arranged in a counterweight shaft, a car (6) arranged in an elevator shaft, and a steel wire rope (10), characterized in that: A support assembly (2) and a traction wheel (4) are installed in the machine room (1), and a guide assembly (3) is installed on the support assembly (2); three sets of counterweight guide wheels (9) are rotatably installed at equal intervals on the top of the counterweight (5); A car frame structure (7) is fixedly installed on the outside of the car (6); the car frame structure (7) comprises a main structure (71) and a reinforcement component (72); the main structure (71) is fixedly installed on the outer wall of the car (6), and the reinforcement component (72) is installed on the main structure (71); three groups of car top guide wheels (8) are rotatably installed on the top of the main structure (71); guide shoes are symmetrically fixedly installed on the outer wall of the main structure (71); the guide shoes are limitedly slidably connected to the slide rails fixedly installed in the counterweight well; Both ends of the steel wire rope (10) are fixedly mounted on the top of the machine room (1), and the middle portion of the steel wire rope (10) passes through the car top guide wheel (8), the guide assembly (3), the traction wheel (4) and the counterweight guide wheel (9) in sequence; the guide assembly (3), the car top guide wheel (8) and the counterweight guide wheel (9) are transmission-connected to the traction wheel (4) through the steel wire rope (10).

2. The high-stability heavy-duty freight elevator according to claim 1 is characterized in that: The support assembly (2) comprises an I-beam (21), a base channel steel (22) and a buffer channel steel (23); a plurality of I-beams (21) are fixedly installed at equal intervals on the machine room (1); a plurality of base channel steels (22) are fixedly installed on the I-beam (21); each base channel steel (22) is in contact with at least two I-beams (21); the I-beams (21) are arranged horizontally, and the base channel steels (22) are arranged longitudinally; the buffer channel steel (23) is fixedly installed on the base channel steel (22), and a guide assembly (3) is installed on the buffer channel steel (23).

3. The high-stability heavy-duty freight elevator according to claim 2 is characterized in that: The main structure (71) comprises a main car frame (711), an auxiliary car frame (712) and a crossbeam (713); the main car frame (711) is fixedly mounted on the middle of the outer wall of the car (6); two sets of auxiliary car frames (712) are symmetrically fixedly mounted on both sides of the outer wall of the car (6); the crossbeam (713) is fixedly mounted on the upper sides of the main car frame (711) and the two sets of auxiliary car frames (712); two car top guide wheels (8) are symmetrically mounted on the tops of the main car frame (711) and the two sets of auxiliary car frames (712); and guide shoes are symmetrically fixedly mounted on both sides of the main car frame (711) and the auxiliary car frame (712).

4. The high-stability heavy-duty freight elevator according to claim 3 is characterized in that: The guide assembly (3) comprises four first guide wheels (31) and two second guide wheels (32); the four first guide wheels (31) are rotatably mounted on the buffer channel steel (23), and the two second guide wheels (32) are rotatably mounted on the buffer channel steel (23).

5. The high-stability heavy-duty freight elevator according to claim 4, characterized in that: Two first guide wheels (31) are located above the car top guide wheel (8) at the top of the leftmost auxiliary car frame (712), another first guide wheel (31) is located above the car top guide wheel (8) at the front side of the main car frame (711), and another first guide wheel (31) is located above the car top guide wheel (8) at the rear side of the rightmost auxiliary car frame (712); two second guide wheels (32) are located above the counterweight (5); one fixed end point of the steel wire rope (10) is located above the car top guide wheel (8) at the rear side of the main car frame (711), and the other fixed end point of the steel wire rope (10) is located above the counterweight guide wheel (9) at one side of the counterweight (5).

6. The high-stability heavy-duty freight elevator according to claim 5, characterized in that: The steel wire rope (10) passes through two car top guide wheels (8) on the main car frame (711), the first guide wheel (31) located above the main car frame (711), the first guide wheel (31) located above the front side of the left auxiliary car frame (712), two car top guide wheels (8) on the left auxiliary car frame (712), the first guide wheel (31) located above the rear side of the left auxiliary car frame (712), the first guide wheel (31) located above the rear side of the right auxiliary car frame (712), two car top guide wheels (8) on the right auxiliary car frame (712), and the traction wheel (4) in sequence, and then alternately passes through three counterweight guide wheels (9) on the counterweight (5) and two second guide wheels (32) on the buffer channel steel (23).

7. The high-stability heavy-load freight elevator according to claim 6, characterized in that: The reinforcement component (72) comprises an inclined channel steel (721) and an inclined tie rod (722). The inclined channel steel (721) is fixedly installed between the front side of the cross beam (713) and the bottom rear side of the car (6). Two inclined channel steels (721) are provided, and the two inclined channel steels (721) are symmetrically distributed on the left and right sides of the cross beam (713); the inclined tie rod (722) is symmetrically installed between the middle and top of the main car frame (711) and the lower cross beam (713); the inclined tie rod (722) is installed between the middle part of the auxiliary car frame (712) and the lower cross beam (713); and the two ends of the inclined tie rod (722) are respectively hinged to the cross beam (713), the main car frame (711) or the auxiliary car frame (712).

8. The high-stability heavy-load freight elevator according to claim 7, characterized in that: The reinforcement assembly (72) further comprises a diagonal bracing channel steel (723), and the diagonal bracing channel steel (723) is fixedly installed between the upper crossbeam (713) and the auxiliary car frame (712).

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