High-speed heavy-load type lift car suspension device

Abstract

The utility model relates to the field of elevator accessories, in particular to a high-speed heavy-load type elevator car suspension device which comprises an upper beam installed at the top of an elevator car, at least one rope wheel assembly is arranged at the position of the upper beam and matched with a traction system of an elevator, a suspension seat is connected to the lower portion of the upper beam, and an installation groove is formed in the suspension seat. A mounting groove is formed in the upper beam, a mounting structure is arranged in the mounting groove, the rope wheel assembly partially extends into the mounting groove and is connected with the suspension seat through the mounting structure, the suspension seat comprises a foundation seat body, a quick release plate is detachably mounted on the face, facing the upper beam, of the foundation seat body, and a moving space is reserved between the quick release plate and the upper beam. And the movable space is filled with a shock pad. Through the arrangement of the shock pad, when the elevator runs quickly, external force borne by the wheel shaft is transmitted to the upper beam through the suspension seat, and the shock pad can buffer the external force, so that vibration of the whole car is reduced in the running process of the elevator, and the elevator can be suitable for high-speed and heavy-load occasions.

Description

Technical Field

[0001] This application relates to the technical field of elevator accessories, and in particular to a high-speed heavy-duty car suspension device. Background Art

[0002] The elevator car top wheel is located at the top of the elevator car and serves to transmit the tension on the steel wire rope to the car. The car top wheel generally needs to be supported by a rope wheel suspension device installed on the upper beam. In conventional technologies, the rope wheel suspension device and the upper beam are mostly rigidly connected, and this connection method is only applicable to conventional elevators with relatively small self-weight and load and relatively low speed of the elevator.

[0003] In related technologies, a buffer device is proposed to be added between the rope wheel suspension device and the upper beam so that it can be applied to high-speed heavy-duty elevators and reduce the vibration during the high-speed operation of the elevator. The buffer device is generally a buffer pad installed on the rope wheel suspension device. With the long-term operation of the elevator, the elasticity of the buffer pad will gradually decrease, and the buffer effect that can be achieved will thus weaken. Therefore, when overhauling the elevator, it is necessary to regularly replace the new buffer pad to ensure the buffer effect.

[0004] The problem with related technologies is that since the upper beam is fixedly connected to the elevator, when it is necessary to replace the new buffer pad, the entire suspension device needs to be removed from the upper beam, which has a large working intensity, and after the suspension device is repeatedly disassembled and assembled, it is easy to reduce the connection strength with the upper beam, thus generating potential safety hazards. Content of the Utility Model

[0005] In order to facilitate the replacement of the buffer pad and reduce the disassembly and assembly frequency of the suspension device, this application provides a high-speed heavy-duty car suspension device.

[0006] A high-speed heavy-duty car suspension device provided by this application adopts the following technical solution:

[0007] A high-speed heavy-duty car suspension device includes an upper beam installed on the top of the car. At least one set of rope wheel assemblies is arranged at the upper beam. The rope wheel assemblies are cooperatively arranged with the traction system of the elevator. A suspension seat is connected below the upper beam. An installation groove is provided on the suspension seat. An installation structure is arranged in the installation groove. A part of the rope wheel assembly extends into the installation groove and is connected to the suspension seat through the installation structure. The suspension seat includes a base seat body that provides support for the rope wheel assembly. A quick-release plate is detachably installed on the surface of the base seat body facing the upper beam. A movable space is reserved between the quick-release plate and the upper beam. A shock-absorbing pad is filled in the movable space. The shock-absorbing pad is connected to the quick-release plate.

[0008] By adopting the above technical solution, the shock-absorbing pad arranged between the suspension seat and the upper beam can filter the vibration force transmitted to the upper beam by the car top wheel during the operation of the elevator, thereby reducing the vibration of the car. In addition, the shock-absorbing pad is arranged on the quick-release plate, and the quick-release plate is detachably connected to the suspension seat. The staff can replace the shock-absorbing pad by removing the quick-release plate, which is simple and convenient to operate.

[0009] Optionally, the rope pulley assembly includes a car top wheel and a wheel axle passing through the middle of the car top wheel, both ends of the wheel axle extend into the mounting groove, the mounting structure is connected to the wheel axle, and a rope groove for the traction rope to pass through is opened on the car top wheel.

[0010] By adopting the above technical solution, the steel wire rope led out from the traction system is wound in the rope groove, and the rope groove can limit the steel wire rope, thereby preventing the steel wire rope from moving left and right during the operation of the elevator, and the installation structure can provide support for the wheel axle.

[0011] Optionally, the mounting structure includes pulley suspension plates relatively distributed on both sides of the car top wheel, and connecting parts are integrally formed at both ends of the two pulley suspension plates in the length direction, and the connecting parts are fitted with at least one side wall of the suspension seat, and the connecting parts are welded to the suspension seat.

[0012] By adopting the above technical solution, the rope pulley suspension plate is the main supporting part of the wheel axle. Connecting parts are set at both ends of the rope pulley suspension plate, and the connecting parts are welded to the suspension seat. This can make the rope pulley suspension plate and the suspension seat fully connected, thereby improving the overall structural strength.

[0013] Optionally, the mounting structure also includes an inner positioning plate and an outer positioning plate respectively arranged on the side of the pulley suspension plate facing toward and away from the car top wheel, the inner positioning plate and the outer positioning plate are both connected to the pulley suspension plate, the wheel axle extends to the mounting structure and is provided with a positioning groove, the inner positioning plate and the outer positioning plate both partially extend into the positioning groove to limit the rotation of the wheel axle.

[0014] By adopting the above technical solution, the inner positioning plate and the outer positioning plate are arranged in cooperation to limit the wheel axle, thereby improving the stability of the wheel axle and the car top wheel during the operation of the elevator.

[0015] Optionally, a rope blocking assembly is provided in the suspension seat to prevent the traction rope from jumping out of the rope groove. The rope blocking assembly includes a rope blocking plate, which is installed on the rope pulley suspension plate and semi-surrounds the outer side of the car top wheel.

[0016] By adopting the above technical solution, the rope blocking plate can limit the steel wire rope wound on the car top wheel to prevent the steel wire rope from detaching from the car top wheel.

[0017] Optionally, the rope retaining assembly further includes a rope retaining rod disposed on one side of the car top wheel and extending along the axial direction of the car top wheel. A kidney-shaped hole is formed in the rope wheel suspension plate, and both ends of the rope retaining rod pass through the kidney-shaped hole and are connected to the rope wheel suspension plate.

[0018] By adopting the above technical solution, the setting of the rope retaining rod can further improve the limiting effect on the steel wire rope. In addition, the design of the kidney-shaped hole can facilitate the adjustment of the position of the rope retaining rod.

[0019] Optionally, stop pads are welded to both sides of the rope wheel suspension plate facing the inner positioning plate and the outer positioning plate, and the lower end surfaces of the two stop pads are respectively abutted against the inner positioning plate and the outer positioning plate.

[0020] By adopting the above technical solution, the stop pads welded on the rope wheel suspension plate can reduce the load on the fasteners connecting the inner positioning plate and the outer positioning plate during the operation of the elevator, prevent the fasteners from being sheared due to excessive load, and reduce the risk.

[0021] Optionally, the upper beam includes a left beam body and a right beam body arranged oppositely. Upper openings are formed on both sides of the base seat body. The quick-release plate is disposed at the upper opening and is connected to multiple side walls of the base seat body. Side openings for the quick-release plate to extend in or out are also formed on both sides of the base seat body.

[0022] By adopting the above technical solution, the setting of the side openings facilitates the staff to install or remove the quick-release plate. The quick-release plate is fixed at the upper opening of the suspension seat, and the side with the shock-absorbing pad faces the left beam body and the right beam body to respectively reduce the shock force transmitted to the left beam body and the right beam body.

[0023] Optionally, two limiting plates extending vertically upward and distributed oppositely are formed on the side of the quick-release plate facing the upper beam, and the two limiting plates are respectively abutted against both sides of the upper beam.

[0024] By adopting the above technical solution, the two limiting plates can respectively abut against the two side walls of the upper beam to limit the suspension seat and prevent the suspension seat from moving forward and backward.

[0025] In summary, the present application includes at least one of the following beneficial technical effects:

[0026] 1. Through the setting of the shock-absorbing pad, when the elevator runs fast, the external force received by the wheel shaft is transmitted to the upper beam through the suspension seat, and the shock-absorbing pad can buffer the external force, thereby reducing the vibration of the entire car during the operation of the elevator to be applicable to high-speed and heavy-load occasions;

[0027] 2. The suspension seat is composed of a base seat body and a quick-release plate. The shock-absorbing pad is fixed on the quick-release plate, and the quick-release plate is detachably connected to the base seat body. The staff can replace the shock-absorbing pad on it by removing the quick-release plate, which is simple to operate, improves efficiency, and reduces the disassembly and assembly frequency of the overall suspension seat to avoid affecting the connection strength between the suspension seat and the upper beam. Brief Description of the Drawings

[0028] Figure 1 is the front view structural schematic diagram of the embodiment of the present application.

[0029] Figure 2 is the front view sectional structural schematic diagram of the embodiment of the present application.

[0030] Figure 3 is the side view sectional structural schematic diagram of the embodiment of the present application.

[0031] Figure 4 is Figure 3 the enlarged structural schematic diagram of part A in

[0032] Figure 5 is Figure 3 the enlarged structural schematic diagram of part B in

[0033] Reference Signs: 1, upper beam; 11, left beam body; 12, right beam body; 2, rope wheel assembly; 21, car top wheel; 22, wheel axle; 3, suspension seat; 31, base seat body; 32, quick-release plate; 4, mounting structure; 41, rope wheel suspension plate; 42, connecting part; 43, inner positioning plate; 44, outer positioning plate; 5, shock-absorbing pad; 6, rope blocking assembly; 61, rope blocking plate; 62, rope blocking rod; 7, stop backing plate; 8, limiting plate. Detailed Description of the Embodiment

[0034] The following further describes the present application in detail Figures 1-5 in conjunction with the attached drawings.

[0035] The embodiment of the present application discloses a high-speed heavy-duty car suspension device. Referring to Figure 1 , a high-speed heavy-duty car suspension device includes an upper beam 1 installed on the top of the car, and a rope wheel assembly 2 arranged at the upper beam 1. The rope wheel assembly 2 cooperates with the traction system of the elevator, and the steel wire rope led out from the traction system bypasses the rope wheel assembly 2. A suspension seat 3 is connected to the bottom of the upper beam 1, and a mounting structure 4 is arranged on the suspension seat 3. The above-mentioned rope wheel assembly 2 is fixed on the suspension seat 3 through the mounting structure 4.

[0036] Referring to Figure 2 , the rope wheel assembly 2 includes a car top wheel 21 and a wheel axle 22 passing through the middle of the car top wheel 21. The mounting structure 4 is fixed on the suspension seat 3 to provide support and positioning for the wheel axle 22. An annular rope groove is formed on the outer peripheral surface of the car top wheel 21, and the steel wire rope is wound in the rope groove.

[0037] The installation structure 4 includes two rope wheel suspension plates 41 symmetrically arranged on both sides of the car top wheel 21. Connecting parts 42 are provided at both ends of the two rope wheel suspension plates 41. The two opposite side surfaces of the connecting parts 42 are in full contact with and welded to the suspension seat 3, so that the rope wheel suspension plates 41 are fixedly connected to the suspension seat 3. Inner positioning plates 43 and outer positioning plates 44 are respectively arranged on both sides of each rope wheel suspension plate 41. The inner positioning plates 43 and the outer positioning plates 44 are both attached to the rope wheel suspension plates 41 and connected by fasteners. Axial holes are provided in the middle parts of the inner positioning plates 43, the outer positioning plates 44 and the rope wheel suspension plates 41 for the wheel shaft 22 to pass through the inner positioning plates 43, the rope wheel suspension plates 41 and the outer positioning plates 44 in sequence.

[0038] Further, referring to Figure 2 、 Figure 3 and Figure 4 , a positioning groove is provided on the circumferential surface of the wheel shaft 22. The positioning groove corresponds to the positions of the inner positioning plate 43 and the outer positioning plate 44. Protrusions matching the positioning groove are formed on the surfaces of the inner positioning plate 43 and the outer positioning plate 44 facing the wheel shaft 22. When the inner positioning plate 43 and the outer positioning plate 44 are coaxial with the wheel shaft 22, the protrusions just extend into the positioning groove to limit the rotation of the wheel shaft 22.

[0039] It should be noted that in order to realize the disassembly of the wheel shaft 22, the axial holes provided in the inner positioning plate 43 and the outer positioning plate 44 should extend downward and penetrate their lower end surfaces to form a U-shaped opening. The midline of the U-shaped opening is on the same straight line as the midline of the positioning groove, and this straight line coincides with one of the diameters of the wheel shaft 22. When installing the inner positioning plate 43 or the outer positioning plate 44, the inner positioning plate 43 or the outer positioning plate 44 is close to the wheel shaft 22, so that the wheel shaft 22 penetrates into the U-shaped opening, and then the inner positioning plate 43 or the outer positioning plate 44 is rotated to insert the protrusion into the positioning groove. At this time, the inner positioning plate 43 or the outer positioning plate 44 is initially installed, and then the rope wheel suspension plate 41 is connected to the two by fasteners; when disassembling the inner positioning plate 43 or the outer positioning plate 44, the fasteners connecting the rope wheel suspension plate 41 are removed, and the inner positioning plate 43 or the outer positioning plate 44 is pulled out along the extending direction of the U-shaped opening. It should be noted that when connecting by fasteners, threaded holes communicating with each other should be respectively formed on the inner positioning plate 43, the outer positioning plate 44 and the rope wheel suspension plate 41 for the fasteners to penetrate.

[0040] Furthermore, a space is reserved between the upper ends of the inner positioning plate 43 or the outer positioning plate 44 and the rope wheel suspension plate 41. A stop backing plate 7 is arranged in the space. The length of the stop backing plate 7 is the same as that of the inner positioning plate 43 or the outer positioning plate 44 and they are in contact with each other. The stop backing plate 7 is welded to the rope wheel suspension plate 41. With the above structure, during the operation of the elevator, the setting of the stop backing plate 7 can reduce the force on the fasteners passing through the inner positioning plate 43 and the outer positioning plate 44, prevent the fasteners from being sheared due to excessive load, and reduce the risk.

[0041] Referring to Figure 3 and Figure 4 , a rope blocking assembly 6 is further arranged on the rope wheel suspension plate 41. The rope blocking assembly 6 includes a rope blocking plate 61 and a rope blocking rod 62. The rope blocking plate 61 is of a U-shaped structure, and its opening side faces the car top wheel 21 and its two side edges are respectively fixed on the rope wheel suspension plate 41, thus forming a structure that semi-surrounds the outside of the car top wheel 21, and is used for limiting the steel wire rope wound in the rope groove to prevent the steel wire rope from slipping out of the car top wheel 21. The rope blocking rod 62 is arranged on one side of the car top wheel 21 and extends along the axial direction of the car top wheel 21. Both ends of the rope blocking rod 62 extend to the rope wheel suspension plate 41. A kidney-shaped hole is formed on the rope wheel suspension plate 41, and the rope blocking rod 62 passes through the kidney-shaped hole and is connected to the rope wheel suspension plate 41 through fasteners. Preferably, the extension line of the kidney-shaped hole intersects with the central axis of the wheel shaft 22, so that the rope blocking rod 62 can adjust its installation position along the extension direction of the kidney-shaped hole (close to or away from the car top wheel 21 along the radial direction).

[0042] Referring to Figure 3 , the upper beam 1 includes a left beam body 11 and a right beam body 12 which are arranged oppositely. Both the left beam body 11 and the right beam body 12 are of a rectangular structure with an opening on one side, and the opening sides of the left beam body 11 and the right beam body 12 are away from each other. Preferably, a steel connecting piece can be arranged between the left beam body 11 and the right beam body 12, and the steel connecting piece is respectively welded to the left beam body 11 and the right beam body 12 to improve the overall structural strength of the upper beam 1.

[0043] A space is reserved between the left beam body 11 and the right beam body 12. The suspension seat 3 is provided with an installation groove corresponding to this space. The above installation structure 4 and the rope wheel assembly 2 are both placed in the installation groove, and the upper end part of the car top wheel 21 extends between the left beam body 11 and the right beam body 12.

[0044] Furthermore, referring to Figure 3 and Figure 5The suspension seat 3 includes a base body 31 and two quick-release plates 32 arranged on the base body 31 and corresponding to the left beam body 11 and the right beam body 12 respectively. Side openings and upper openings are formed on both sides of the base body 31. The upper openings face the left beam body 11 and the right beam body 12. The two quick-release plates 32 are installed at the upper openings and the planes where they are located are parallel to the lower surfaces of the left beam body 11 and the right beam body 12. Several ear plates extend downward from the side of the quick-release plate 32 facing the base body 31. Each ear plate is provided with a threaded hole corresponding to different positions of the base body 31. Fasteners are arranged in the threaded holes to connect the quick-release plate 32 to the base body 31. The side openings are provided to facilitate the removal or insertion of the quick-release plate 32. Both sides of the base body 31 are connected to the upper beam 1 by pre-tightening bolts.

[0045] Furthermore, two relatively distributed limit plates 8 are formed on one side of the quick release plate 32 facing the left beam body 11 and the right beam body 12. The two limit plates 8 extend along the length direction of the quick release plate 32 and are vertically arranged on both sides of the quick release plate 32. The two side walls at the lower ends of the left beam body 11 and the right beam body 12 abut against the limit plates 8 to limit the displacement of the suspension seat 3 and prevent the suspension seat 3 from moving in the front and rear directions.

[0046] Furthermore, a chamber is enclosed between the two limit plates 8 and the quick release plate 32, and the chamber is filled with a shock-absorbing pad 5, and the upper end of the shock-absorbing pad 5 is in full contact with the left beam 11 and the right beam 12 to ensure that it can withstand a huge load and help the elevator filter the vibration of the entire car during operation. Preferably, the shock-absorbing pad 5 is connected to the quick release plate 32, and when the quick release plate 32 is removed, the shock-absorbing pad 5 is removed for easy replacement.

[0047] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A high-speed heavy-load car suspension device, comprising an upper beam (1) mounted on the top of the car, wherein at least one set of sheave assemblies (2) are arranged on the upper beam (1), and the sheave assemblies (2) are arranged in cooperation with the traction system of the elevator, characterized in that: A suspension seat (3) is connected below the upper beam (1), a mounting groove is provided on the suspension seat (3), a mounting structure (4) is arranged in the mounting groove, the rope pulley assembly (2) partially extends into the mounting groove and is connected to the suspension seat (3) via the mounting structure (4), the suspension seat (3) comprises a base seat body (31) for providing support for the rope pulley assembly (2), a quick-release plate (32) is detachably mounted on a side of the base seat body (31) facing the upper beam (1), an activity space is reserved between the quick-release plate (32) and the upper beam (1), a shock-absorbing pad (5) is filled in the activity space, and the shock-absorbing pad (5) is connected to the quick-release plate (32).

2. A high-speed and heavy-load car suspension device according to claim 1, characterized in that: The rope pulley assembly (2) comprises a car top wheel (21) and a wheel axle (22) passing through the middle of the car top wheel (21), both ends of the wheel axle (22) extend into the mounting groove, the mounting structure (4) is connected to the wheel axle (22), and a rope groove for a traction rope to pass through is provided on the car top wheel (21).

3. A high-speed and heavy-load car suspension device according to claim 2, characterized in that: The mounting structure (4) comprises rope pulley suspension plates (41) relatively distributed on both sides of the car top wheel (21), and both ends of the two rope pulley suspension plates (41) in the length direction are integrally formed with connecting parts (42), the connecting parts (42) are in contact with at least one side wall of the suspension seat (3), and the connecting parts (42) are welded to the suspension seat (3).

4. A high-speed and heavy-load car suspension device according to claim 3, characterized in that: The mounting structure (4) further comprises an inner positioning plate (43) and an outer positioning plate (44) respectively arranged on the side of the rope pulley suspension plate (41) facing towards and away from the car top wheel (21); the inner positioning plate (43) and the outer positioning plate (44) are both connected to the rope pulley suspension plate (41); a positioning groove is provided where the wheel shaft (22) extends to the mounting structure (4); the inner positioning plate (43) and the outer positioning plate (44) both partially extend into the positioning groove to limit the rotation of the wheel shaft (22).

5. A high-speed and heavy-load car suspension device according to claim 4, characterized in that: A rope blocking assembly (6) is arranged in the suspension seat (3) for preventing the traction rope from jumping out of the rope groove. The rope blocking assembly (6) comprises a rope blocking plate (61). The rope blocking plate (61) is mounted on the rope wheel suspension plate (41) and half surrounds the outer side of the car top wheel (21).

6. A high-speed and heavy-load car suspension device according to claim 5, characterized in that: The rope blocking assembly (6) further comprises a rope blocking rod (62), the rope blocking rod (62) being arranged on one side of the car top wheel (21) and extending along the axial direction of the car top wheel (21), the rope wheel suspension plate (41) being provided with a waist-shaped hole, and both ends of the rope blocking rod (62) passing through the waist-shaped hole are connected to the rope wheel suspension plate (41).

7. A high-speed and heavy-load car suspension device according to claim 4, characterized in that: Stopping pads (7) are welded on both sides of the rope pulley suspension plate (41) facing the inner positioning plate (43) and the outer positioning plate (44), and the lower end surfaces of the two stopping pads (7) are respectively in contact with the inner positioning plate (43) and the outer positioning plate (44).

8. A high-speed and heavy-load car suspension device according to claim 1, characterized in that: The upper beam (1) comprises a left beam body (11) and a right beam body (12) which are arranged opposite to each other. Upper openings are formed on both sides of the base body (31). The quick-release plate (32) is arranged at the upper opening and connected to a plurality of side walls of the base body (31). Side openings into which the quick-release plate (32) can extend or protrude are also formed on both sides of the base body (31).

9. A high-speed and heavy-load car suspension device according to claim 1 or 7, characterized in that: Two limit plates (8) extending vertically upward and arranged opposite to each other are formed on one side of the quick-release plate (32) facing the upper beam (1), and the two limit plates (8) are respectively in contact with two sides of the upper beam (1).

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