Car roof sheave rope sheave underneath structure

Abstract

The utility model provides a car top wheel and rope wheel underneath structure, a car top wheel structure is arranged on a car frame, an upper cross beam is arranged on the upper portion of the car frame, the car top wheel structure is installed on the lower portion of the upper cross beam and located on the upper portion of a car, and the car top wheel structure comprises a rope wheel, a protective cover, a connecting piece and a shock pad. The protective cover is arranged on the outer side of the rope wheel in a surrounding mode, a wheel shaft of the rope wheel is fixed to the protective cover, a connecting plate is formed on the upper portion of the protective cover and installed on the upper cross beam through a connecting piece, and a shock pad is arranged between the connecting plate and the upper cross beam. The whole car top wheel is arranged below the car frame, the occupied space of the top is reduced, the whole car can reach a higher position, and the car top wheel is suitable for a machine-room-free elevator structure and has a strong protection effect on the rope wheel.

Description

Technical Field

[0001] This utility model relates to an improvement in the structure of a car rope pulley, specifically a structure with the car top pulley rope pulley positioned below the car. Background Technology

[0002] Elevator cars need to be connected to the traction machine via traction ropes. The traction ropes pass through pulleys on the car to form a movable pulley structure. For ease of installation and wiring, the pulleys are usually installed on the car top and connected to the car frame. Therefore, the position of the pulleys is related to the maximum height the car can reach in the hoistway. Nowadays, with the increasing use of elevators in various scenarios, the application of machine-room-less elevators is also increasing. Machine-room-less elevators do not have a dedicated machine room space, and the traction machine, control cabinet, beams, and other infrastructure need to be centrally located on the top of the hoistway, which will occupy the reachable height of the car top. Therefore, the pulley structure on the car top needs to be improved. Utility Model Content

[0003] The purpose of this utility model is to overcome the above-mentioned deficiencies in the prior art and to provide a structure with the car top wheel rope wheel located below.

[0004] The technical solution adopted by this utility model to solve the above problems is as follows: the car top wheel structure is set on the car frame, the upper part of the car frame is the upper crossbeam, the car top wheel structure is installed on the lower part of the upper crossbeam and located on the upper part of the car, the car top wheel structure includes a rope wheel, a protective cover, a connector, and a shock-absorbing pad, the protective cover surrounds the outside of the rope wheel, the axle of the rope wheel is fixed on the protective cover, the upper part of the protective cover is formed with a connecting plate, the connecting plate is installed at the upper crossbeam through the connector, and a shock-absorbing pad is set between the connecting plate and the upper crossbeam. The car top wheel is set below the car frame as a whole, reducing the space occupied at the top, allowing the car to reach a higher position, which is suitable for machine room-less elevator structures, and provides strong protection for the rope wheel.

[0005] Furthermore, the protective cover includes two opposing side guards, which are positioned adjacent to each other on both sides of the rope pulley. The side guards are connected at a fixed distance by a spacer plate. An anti-derailment rod is also connected through the side guards, and the anti-derailment rod is fixed close to the edge of the rope pulley. The protective groove is formed into a close-enclosing structure, providing structural protection for the rope pulley and incorporating the anti-derailment rod to prevent the traction rope from slipping out of the groove, thus improving safety.

[0006] Furthermore, a support member is provided at the point where the protective cover passes through the axle. The support member is located at the lower edge of the axle, is fixedly installed on the protective cover, and supports the axle. The support member reinforces the structure at the axle, preventing the protective cover from tearing at the edge of the axle.

[0007] Furthermore, the shock-absorbing pad has a multi-layer structure, comprising at least two rubber layers with a steel plate sandwiched between them. A connector extends through the entire thickness of the shock-absorbing pad for a locked connection. This multi-layer structure provides excellent resistance to deformation, effectively reducing noise while also ensuring a long service life.

[0008] Furthermore, a pad is provided between the shock-absorbing pad and the upper crossbeam. The pad is a flat, plate-like structure with its plane positioned on the lower surface of the upper crossbeam. The shock-absorbing pad presses upward against the pad. The function of the pad is to provide a fixed foundation surface for the upper crossbeam. Since the car frame is a molded component, its surface is not completely flat; the pad is used to provide a flat foundation.

[0009] Compared with the prior art, this utility model has the following advantages and effects: This design is an improvement on the car top rope sheave structure, which can effectively increase the height of the car top stopping at the floor, effectively save shaft space, adapt to the requirements of the shaft, effectively expand the application scenarios of elevators, and facilitate the promotion and use of elevators. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of the rope pulley structure.

[0011] Figure 2 This is a schematic diagram of the structure in the direction of the rope pulley cross section.

[0012] Figure 3 This is a schematic diagram of the first installation method.

[0013] Figure 4 This is a schematic diagram of the second installation method.

[0014] In the diagram: 1. Upper crossbeam, 2. Rope pulley, 3. Protective cover, 4. Connector, 5. Shock-absorbing pad, 6. Connecting plate, 7. Side guard plate, 8. Distance plate, 9. Anti-detachment rod, 10. Support component, 11. Pad plate. Detailed Implementation

[0015] The present invention will be further described in detail below with reference to the accompanying drawings and through embodiments. The following embodiments are explanations of the present invention, but the present invention is not limited to the following embodiments.

[0016] A car top wheel sheave structure with the sheave positioned below is disclosed. The car top wheel structure is mounted on the car frame, with an upper crossbeam 1 at the top of the car frame. The car top wheel structure is installed at the lower part of the upper crossbeam 1 and located at the top of the car. The car top wheel structure includes a sheave 2, a protective cover 3, a connector 4, and a shock-absorbing pad 5. The protective cover 3 surrounds the outside of the sheave 2, and the axle of the sheave 2 is fixed to the protective cover 3. A connecting plate 6 is formed on the upper part of the protective cover 3. The connecting plate 6 is mounted on the upper crossbeam 1 through the connector 4. A shock-absorbing pad 5 is provided between the connecting plate 6 and the upper crossbeam 1.

[0017] The protective cover 3 includes two opposing side guards 7, which are arranged close to each other on both sides of the rope wheel 2. The side guards 7 are connected at a fixed distance by a spacer plate 8. An anti-detachment rod 9 is also connected through the side guards 7 and is fixed close to the edge of the rope wheel 2.

[0018] The protective cover 3 is provided with a support member 10 at the point where the wheel axle passes. The support member 10 is located at the lower edge of the wheel axle and is fixedly installed on the protective cover 3 to support the wheel axle.

[0019] The shock-absorbing pad 5 has a multi-layer structure, including at least two rubber layers, with a steel plate sandwiched between the two rubber layers, and the connector 4 is locked through the entire thickness of the shock-absorbing pad 5.

[0020] A pad 11 is provided between the shock-absorbing pad 5 and the upper crossbeam 1. The pad 11 is a flat plate structure with its plane set on the lower surface of the upper crossbeam 1. The shock-absorbing pad 5 presses the pad 11 upward.

[0021] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered exemplary rather than restrictive in all respects. The scope of this invention is defined by the claims rather than the foregoing description, and thus all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0022] Furthermore, it should be understood that although this specification describes the embodiments, not every embodiment contains only one independent technical solution. This description method is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A structure with a car roof pulley and sheave positioned below the roof, characterized in that: The car top wheel structure is set on the car frame. The upper part of the car frame is the upper crossbeam (1). The car top wheel structure is installed on the lower part of the upper crossbeam (1) and located on the upper part of the car. The car top wheel structure includes a rope wheel (2), a protective cover (3), a connecting piece (4), and a shock-absorbing pad (5). The protective cover (3) surrounds the outside of the rope wheel (2). The axle of the rope wheel (2) is fixed on the protective cover (3). A connecting plate (6) is formed on the upper part of the protective cover (3). The connecting plate (6) is installed on the upper crossbeam (1) through the connecting piece (4). A shock-absorbing pad (5) is provided between the connecting plate (6) and the upper crossbeam (1).

2. The car top pulley lower-mounted structure according to claim 1, characterized in that: The protective cover (3) includes two opposing side guards (7), which are arranged close to each other on both sides of the rope wheel (2). The side guards (7) are connected at a fixed distance by a distance plate (8). An anti-detachment rod (9) is also connected through the side guards (7), and the anti-detachment rod (9) is fixed close to the edge of the rope wheel (2).

3. The car top pulley lower-mounted structure according to claim 1, characterized in that: The protective cover (3) is provided with a support member (10) at the point where the wheel axle passes. The support member (10) is located at the lower edge of the wheel axle and is fixedly installed on the protective cover (3) to support the wheel axle.

4. The car top pulley lower-mounted structure according to claim 1, characterized in that: The shock-absorbing pad (5) has a multi-layer structure, including at least two rubber layers, with a steel plate sandwiched between the two rubber layers, and the connector (4) is locked through the entire thickness of the shock-absorbing pad (5).

5. The car top pulley lower-mounted structure according to claim 1, characterized in that: A pad (11) is provided between the shock-absorbing pad (5) and the upper crossbeam (1). The pad (11) is a flat plate structure, and its plane is set on the lower surface of the upper crossbeam (1). The shock-absorbing pad (5) presses the pad (11) upward.

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