A steel band elevator main machine structure and a steel band elevator system

Abstract

The utility model discloses a steel band elevator host structure and steel band elevator system, including frame, is provided with first rope head connecting subassembly and second rope head connecting subassembly respectively in both ends of frame, is equipped with the compression belt wheel and the guide wheel between first rope head connecting subassembly and second rope head connecting subassembly, still be provided with steel band host on the frame, the steel band host has steel band traction sheave, steel band traction sheave is located the compression belt wheel top, and steel band traction sheave deviates from the side of first rope head connecting subassembly and the side of compression belt wheel close first rope head connecting subassembly respectively with same vertical plane tangent. The utility model discloses the host structure through structural arrangement design, guarantees the steel band angle of wrap setting on steel band traction sheave guarantee 180 degrees, simultaneously, when the unloading of steel band of part rope head subassembly loosening, the spring elongation of rope head subassembly, thereby promotes the rotation of the baffle, makes detection switch action, thereby realizes the loosening detection of steel band rope head, improved security.

Description

Technical Field

[0001] This utility model relates to the field of elevator installation technology, and in particular to a steel belt elevator main unit structure and a steel belt elevator system. Background Technology

[0002] A steel belt elevator is an elevator system driven by a steel belt. Steel belt elevators have the following main advantages: a large contact area between the steel belt and the traction sheave, resulting in high transmission efficiency (more than 50% higher energy efficiency compared to traditional wire ropes), and a lifespan 2 to 3 times longer than traditional wire ropes; the flexibility of the steel belt significantly reduces vibrations during elevator operation; and the main unit is smaller, saving building space. Current steel belt traction machines require a 180-degree wrap angle for the traction sheave, but both the traction sheave and guide sheave are relatively small, and there is a certain distance between the elevator counterweight center and the car center. Conventional rope winding arrangements cannot guarantee a 180-degree wrap angle for the traction sheave. Furthermore, current steel belt rope end assemblies mainly include steel belt connectors, screws, springs fitted on the screws, and locking nuts. When the steel belt is under stress, the springs compress, and when the rope end loosens, there is a lack of an effective loosening detection structure, posing a significant safety hazard. Summary of the Invention

[0003] In view of the shortcomings of the prior art, the technical problem to be solved by this utility model is to provide a steel belt elevator host structure and a steel belt elevator system, so as to solve the problems that the steel belt winding of the traction sheave is difficult to meet the wrap angle requirements and the lack of a detection structure for rope head loosening.

[0004] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: A steel belt elevator main unit structure includes a frame, with a first rope end connecting assembly and a second rope end connecting assembly respectively arranged at both ends of the frame. A pressure roller and a guide roller are arranged between the first rope end connecting assembly and the second rope end connecting assembly. The pressure roller is close to the first rope end connecting assembly, and the guide roller is close to the second rope end connecting assembly. The rotation axes of the pressure roller and the guide roller are parallel and located on the same horizontal plane. A steel belt main unit is also arranged on the frame. The steel belt main unit has a steel belt traction sheave. The steel belt traction sheave is located above the pressure roller, and the side of the steel belt traction sheave away from the first rope end connecting assembly and the side of the pressure roller close to the first rope end connecting assembly are tangent to the same vertical plane.

[0005] As an optimization, both the first rope end connecting assembly and the second rope end connecting assembly include a fixed plate and a collision plate and a rope end plate arranged opposite to each other and in parallel. The rope end plate is fixedly connected to the frame, the collision plate is located above the rope end plate, and the fixed plate is located between the collision plate and the rope end plate. Its lower end is fixedly connected to the rope end plate, and its upper end is hinged to one side of the collision plate through a rotating shaft, so that the collision plate can rotate around the rotating shaft. A detection switch is provided below the collision plate. The detection switch is fixed on the fixed plate or the rope end plate, and the detection end of the detection switch is in contact with the lower side of the collision plate.

[0006] As an optimization, a shock-absorbing pad for the main unit is installed between the main unit and the frame.

[0007] As an optimization, a frame vibration damping pad is provided on the underside of the frame.

[0008] Based on the above-described main structure, this utility model also provides a steel belt elevator system, including the aforementioned main structure, wherein the frame is mounted on a load-bearing beam; it also includes a car, a counterweight, and multiple traction steel belts, wherein the car has a car anti-rope pulley, the counterweight has a counterweight anti-rope pulley, and both ends of the traction steel belts have rope end assemblies, one end of which is fixedly connected to the rope end plate of a first rope end connecting assembly, the impact plate of the first rope end connecting assembly rests on the upper end of the rope end assembly of the traction steel belt, and the other end of the traction steel belt is vertically oriented. After descending and passing the car anti-reverse rope sheave, it extends vertically upward, passing the steel belt traction sheave near the first rope head connecting assembly, and then descends vertically downward, passing the pressure belt sheave near the first rope head connecting assembly. It then passes the steel belt guide sheave obliquely upward, and extends vertically downward, passing the counterweight anti-reverse rope sheave, and then ascends vertically upward and is fixedly connected to the rope head plate of the second rope head connecting assembly. The impact plate of the second rope head connecting assembly rests on the upper end of the rope head assembly at this end.

[0009] As an optimization, the side of the car anti-rope sheave away from the first rope head connecting assembly and the side of the steel belt traction sheave near the first rope head connecting assembly are respectively tangent to the two sides of the same vertical plane, and the side of the steel belt traction sheave away from the first rope head connecting assembly and the side of the pressure belt sheave near the first rope head connecting assembly are respectively tangent to the two sides of the same vertical plane, so that the wrap angle of the steel belt around the steel belt traction sheave is 180°.

[0010] Compared with the prior art, this application has the following advantages: The main structure of this utility model, through its structural layout design, uses the cooperation of the pressure roller, guide roller, and steel belt traction roller to ensure that the wrap angle of the steel belt wound around the steel belt traction roller is guaranteed to be 180 degrees during installation. Simultaneously, the steel belt elevator system of this utility model, through the structural design of the first rope end connecting assembly and the second rope end connecting assembly, has a striking plate installed at the upper end of the steel belt rope end assembly. When part of the rope end assembly loosens and the steel belt is unloaded, the spring of the rope end assembly extends, thereby pushing the striking plate to rotate, causing the detection switch to activate, thus realizing the detection of looseness of the steel belt rope end. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the host structure of this utility model; Figure 2 This is a schematic diagram of the steel belt elevator system of this utility model; Figure 3 This is a schematic diagram of the main structure of the first rope end connecting component in this utility model; Figure 4 This is a side view of the first rope end connecting assembly in this utility model. 1. Frame, 2. First rope end connection assembly, 3. Second rope end connection assembly, 4. Pressure pulley, 5. Guide pulley, 6. Steel belt main unit, 7. Steel belt traction pulley, 8. Fixing plate, 9. Impact plate, 10. Rope end plate, 11. Rotating shaft, 12. Detection switch, 13. Main unit shock absorption pad, 14. Frame shock absorption pad, 15. Floor slab, 16. Load-bearing beam, 17. Car, 18. Counterweight, 19. Steel belt, 20. Car anti-rope pulley, 21. Counterweight anti-rope pulley, 22. Rope end assembly. Detailed Implementation

[0012] The present invention will now be described in further detail with reference to the accompanying drawings.

[0013] Example: See Figures 1-4 A steel belt elevator main unit structure includes a frame 1, which comprises two longitudinal beams and a crossbeam connecting the two longitudinal beams. A frame damping pad 14 is provided on the underside of the longitudinal beams. The longitudinal beams are made of channel steel, with the slots of the two longitudinal beams facing away from each other, and multiple reinforcing ribs distributed within the slots of the longitudinal beams. A first rope end connecting assembly 2 and a second rope end connecting assembly 3 are respectively provided at both ends of the frame 1. A pressure roller 4 and a guide roller 5 are provided between the first rope end connecting assembly 2 and the second rope end connecting assembly 3. The pressure roller 4 is close to the first rope end connecting assembly 2, and the guide roller 5 is close to the second rope end connecting assembly 3. The rotating shafts 11 of the pressure roller 4 and the guide roller 5 are parallel and located on the same horizontal plane. Specifically, the first rope end connecting assembly 2 and the second rope end connecting assembly 3 are respectively installed on two crossbeams near the two ends of the longitudinal beams, and the guide roller 5 and the pressure roller 4 are installed between the two longitudinal beams via axles.

[0014] A main steel belt 19 unit 6 is also installed on the frame 1, and a main unit shock-absorbing pad 13 is provided between the main steel belt 19 unit 6 and the frame 1. Specifically, the main steel belt 19 unit 6 is installed on two longitudinal beams through the main unit shock-absorbing pad 13. The main steel belt 19 unit 6 has a steel belt traction sheave 7, which is located above the pressure sheave 4. The side of the steel belt traction sheave 7 away from the first rope head connecting assembly 2 and the side of the pressure sheave 4 near the first rope head connecting assembly 2 are respectively tangent to the same vertical plane. This ensures that when the steel belt 19 is installed, it can vertically downwards around the pressure sheave 4 after passing over the steel belt traction sheave 7. At the same time, the distance between the side of the steel belt traction sheave 7 near the first rope head connecting assembly 2 and the first rope head connecting assembly 2 is set according to the size of the anti-rope sheave on the car 17 to ensure that the steel belt 19 vertically upwards around the steel belt traction sheave 7 after passing over the car anti-rope sheave 20, thereby ensuring that the wrap angle of the steel belt 19 around the steel belt traction sheave 7 is 180 degrees.

[0015] Specifically, both the first rope end connecting assembly 2 and the second rope end connecting assembly 3 include a fixing plate 8 and a collision plate 9 and a rope end plate 10 arranged opposite to and parallel to each other. The rope end plate 10 is fixedly connected to the frame 1. The collision plate 9 is located above the rope end plate 10. The fixing plate 8 is located between the collision plate 9 and the rope end plate 10. Its lower end is fixedly connected to the rope end plate 10, and its upper end is hinged to one side of the collision plate 9 through a rotating shaft 11, so that the collision plate 9 can rotate around the rotating shaft 11. A detection switch 12 is provided below the collision plate 9. The detection switch 12 is fixed on the fixing plate 8 or the rope end plate 10, and the detection end of the detection switch 12 is in contact with the lower side of the collision plate 9. When installing the steel strip 19, the rope end assembly 22 at the end of the steel strip 19 is fixedly connected to the rope end plate 10, and the impact plate 9 rests on the upper end of the rope end assembly 22. Thus, when the steel strip 19 is under force, the spring of the rope end assembly 22 is compressed, the entire rope end assembly 22 shortens, and the side of the impact plate 9 away from the fixed plate 8 rotates downwards, causing the impact plate 9 to press the detection end of the detection switch 12. Conversely, when part of the rope end assembly 22 loosens, the spring force decreases and elongates, making the entire rope end assembly 22 longer, thereby pushing the side of the impact plate 9 away from the fixed plate 8 to rotate upwards, causing the detection end of the detection switch 12 to unload, thus effectively reflecting the loosening of the rope end assembly 22 of the steel strip 19. Specifically, the detection switch 12 uses a conventional push switch or contact switch, which can realize the detection of the state of the impact plate 9, and is existing technology and will not be described in detail here.

[0016] Based on the above-described main structure, this utility model also provides a steel belt elevator system, including the aforementioned main structure. The frame 1 is mounted on a load-bearing beam 16, which can be a load-bearing beam of a building floor slab 15 or an independently installed load-bearing beam. It also includes a car 17, a counterweight 18, and multiple traction steel belts 19. The car 17 has a car anti-cord sheave 20, the counterweight 18 has a counterweight anti-cord sheave 21, and the traction steel belts 19 have rope end assemblies 22 at both ends. One end of the rope end assembly 22 is fixedly connected to the rope end plate 10 of the first rope end connecting assembly 2. The impact plate 9 of the first rope end connecting assembly 2 rests on the upper end of the rope end assembly 22 of the traction steel belt 19. The other end of the traction steel belt 19 extends vertically downwards, passes around the car anti-cord sheave 20, and then extends vertically upwards, approaching the steel belt traction sheave 7. One side of the first rope end connecting assembly 2 passes over the steel belt traction sheave 7, and then extends vertically downwards from the side of the pressure sheave 4 near the first rope end connecting assembly 2. It then passes over the pressure sheave 4, and then extends diagonally upwards from the upper side of the steel belt 19 guide sheave 5, and downwards vertically. After passing over the counterweight reverse rope sheave 21, it extends vertically upwards and is fixedly connected to the rope end plate 10 of the second rope end connecting assembly 3. The impact plate 9 of the second rope end connecting assembly 3 rests on the upper end of the rope end assembly 22 at this end. The side of the car reverse rope sheave 20 facing away from the first rope end connecting assembly 2 and the side of the steel belt traction sheave 7 near the first rope end connecting assembly 2 are tangent to the two sides of the same vertical plane. Similarly, the side of the steel belt traction sheave 7 facing away from the first rope end connecting assembly 2 and the side of the pressure sheave 4 near the first rope end connecting assembly 2 are tangent to the two sides of the same vertical plane, ensuring that the wrap angle of the steel belt 19 around the steel belt traction sheave 7 is 180°. During normal use, the steel strip is under stress, and the spring of the steel strip rope head assembly is compressed. At this time, the steel strip rope head assembly has a certain length, and the impact plate rests on the upper end of the rope head assembly. The impact plate presses against or contacts the detection switch. When one or part of the steel strip becomes loose, the force transmission between the rope head assembly and the steel strip is interrupted or weakened, causing the spring of the rope head assembly to unload and thus the overall length of the rope head assembly to increase. This pushes the impact plate to rotate, weakening or separating the contact between the impact plate and the detection switch, causing the detection switch to activate and indicating that the steel strip rope head is loose, thus improving safety. The detection switch and the steel strip rope head assembly are both conventional existing equipment; their structure and operation will not be described in detail here.

[0017] In summary, the main structure of this utility model, through its structural layout design and the cooperation of the pressure roller, guide roller, and steel belt traction roller, ensures that the wrap angle of the steel belt wound around the steel belt traction roller is guaranteed to be 180 degrees during installation. Furthermore, the steel belt elevator system of this utility model, through the structural design of the first rope end connecting assembly and the second rope end connecting assembly, features a striking plate at the upper end of the steel belt rope end assembly. When part of the rope end assembly loosens and the steel belt is unloaded, the spring of the rope end assembly extends, thereby pushing the striking plate to rotate and activating the detection switch, thus realizing the detection of loose steel belt rope ends and improving safety.

[0018] Although embodiments of the present invention have been shown and described, those skilled in the art can make various changes, modifications, substitutions and alterations to these embodiments without departing from the principles and basis of the present invention. The scope of the present invention is defined by the appended claims and their equivalents. Therefore, the embodiments of the present invention are merely illustrative examples and do not constitute a limitation on the present invention in any way.

Claims

1. A steel belt elevator main unit structure, characterized in that, The device includes a frame, with a first rope end connecting assembly and a second rope end connecting assembly at each end. A pressure roller and a guide roller are provided between the first and second rope end connecting assemblies. The pressure roller is close to the first rope end connecting assembly, and the guide roller is close to the second rope end connecting assembly. The rotation axes of the pressure roller and the guide roller are parallel and located on the same horizontal plane. A steel belt main unit is also provided on the frame. The steel belt main unit has a steel belt traction roller. The steel belt traction roller is located above the pressure roller, and the side of the steel belt traction roller away from the first rope end connecting assembly and the side of the pressure roller close to the first rope end connecting assembly are tangent to the same vertical plane.

2. The steel belt elevator main unit structure according to claim 1, characterized in that, Both the first rope end connecting assembly and the second rope end connecting assembly include a fixed plate and a collision plate and a rope end plate arranged opposite to and parallel to each other. The rope end plate is fixedly connected to the frame, the collision plate is located above the rope end plate, and the fixed plate is located between the collision plate and the rope end plate. Its lower end is fixedly connected to the rope end plate, and its upper end is hinged to one side of the collision plate through a rotating shaft, so that the collision plate can rotate around the rotating shaft. A detection switch is provided below the collision plate. The detection switch is fixed on the fixed plate or the rope end plate, and the detection end of the detection switch is in contact with the lower side of the collision plate.

3. The steel belt elevator main unit structure according to claim 1, characterized in that, A shock-absorbing pad is installed between the main steel belt machine and the frame.

4. A steel belt elevator hoist structure according to claim 1, wherein A frame shock-absorbing pad is provided on the underside of the frame.

5. A steel belt elevator system, comprising the main structure as described in any one of claims 1-4, wherein the frame is mounted on a load-bearing beam; characterized in that, It also includes a car, a counterweight, and multiple traction steel belts. The car has a car anti-cord pulley, the counterweight has a counterweight anti-cord pulley, and the traction steel belts have rope end assemblies at both ends. One end of the rope end assembly is fixedly connected to the rope end plate of the first rope end connecting assembly. The impact plate of the first rope end connecting assembly rests on the upper end of the rope end assembly of the traction steel belt. The other end of the traction steel belt extends vertically downward and passes over the car anti-cord pulley before extending vertically upward. It passes over the steel belt traction pulley near the side of the first rope end connecting assembly, and then extends vertically downward and passes over the pressure pulley near the side of the first rope end connecting assembly. It then extends obliquely upward and passes over the steel belt guide pulley, and then extends vertically downward. After passing over the counterweight anti-cord pulley, it extends vertically upward and is fixedly connected to the rope end plate of the second rope end connecting assembly. The impact plate of the second rope end connecting assembly rests on the upper end of the rope end assembly at this end.

6. A steel belt elevator system according to claim 5, characterized in that, The side of the car anti-rope sheave away from the first rope head connecting assembly and the side of the steel belt traction sheave near the first rope head connecting assembly are tangent to the two sides of the same vertical plane, and the side of the steel belt traction sheave away from the first rope head connecting assembly and the side of the pressure belt sheave near the first rope head connecting assembly are tangent to the two sides of the same vertical plane, so that the wrap angle of the steel belt around the steel belt traction sheave is 180°.

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