CN221720253U - A shock absorbing mechanism for elevator car frame - Google Patents

Abstract

The utility model provides a damping mechanism for an elevator car frame, which comprises an upper beam, a U-shaped bolt, a damping washer, a damping rubber cushion, a flat spring cushion nut and a pulley structure, wherein the upper beam is arranged on the upper beam; the two ends of a pulley shaft of the pulley in the pulley structure are locked and mounted on the upper beam through a U-shaped bolt and a flat spring pad nut, the shock absorption rubber cushion is arranged between the U-shaped bolt and the upper beam, and the shock absorption gasket is arranged between the flat spring pad nut and the upper beam; the lower end bending part of the U-shaped bolt is used for installing the wheel shaft of the pulley. The damping mechanism for the elevator car frame has the advantages of excellent damping and noise reduction performance, and capability of reducing the height of the whole upright post, thereby reducing the height of a top layer and reducing the installation difficulty.

Description

A shock absorbing mechanism for elevator car frame

Technical Field

The utility model relates to the technical field of shock absorption of elevator car frames, in particular to a shock absorption mechanism for elevator car frames.

Background Art

In existing elevator structures, shock absorbers are usually installed between the lower beam and the car bottom.

During on-site construction and installation, as shown in Figures 1 and 2, the lower beam 31 of the car frame is generally connected to the shock-absorbing bracket 32 with bolts first, and then the lower beam 31 of the car frame is connected to the car bottom. Since the connection structure between the lower beam 31 of the car frame and the shock-absorbing bracket 32 is large in volume, the difficulty of installation with the car bottom increases sharply, and the whole process is very cumbersome, that is, it is necessary to increase the height to accommodate the shock-absorbing bracket. As shown in Figures 1 and 2, the directly increased height is 64 mm, resulting in the occupation of the top floor space, which is not conducive to the control of the top floor height and brings inconvenience to the later maintenance and overhaul.

In addition, long-term loading and unloading of the elevator will cause the shock-absorbing rubber pads to fail or lack elasticity, resulting in deviations in the leveling of the car.

In order to solve the above problems, it is necessary to transform the shock-absorbing structure in the elevator structure to make it more reasonable in spatial position, easier to install and reliable enough in performance.

Utility Model Content

The utility model aims to address the deficiencies of the prior art and thus provide a shock absorbing mechanism for an elevator car frame which has excellent shock absorbing and noise reducing performance, reduces the height of the entire column and thus reduces the height of the top floor, and reduces the difficulty of installation.

In order to achieve the above-mentioned purpose, the technical solution adopted by the utility model is: a shock absorbing mechanism for an elevator car frame, comprising an upper beam, a U-shaped bolt, a shock absorbing washer, a shock absorbing rubber pad, a flat spring washer nut and a pulley structure;

Both ends of the pulley axle in the pulley structure are locked and installed on the upper beam by U-shaped bolts and flat spring washer nuts, the shock-absorbing rubber pad is arranged between the U-shaped bolt and the upper beam, and the shock-absorbing washer is arranged between the flat spring washer nut and the upper beam;

The bent portion at the lower end of the U-shaped bolt is used to mount the axle of the pulley.

Preferably, a box body is arranged outside the pulley of the pulley structure, and the upper edge of the box body is folded outward to form connecting parts on both sides, and the connecting parts on both sides abut against the lower end of the shock-absorbing rubber pad, and the shock-absorbing rubber pad is rectangular as a whole.

Preferably, the shock-absorbing rubber pad is made of rubber.

Preferably, the shock-absorbing rubber pad comprises a groove-shaped fixing plate and a rubber pad installed in a groove of the groove-shaped fixing plate, and corresponding through holes are arranged on the groove-shaped fixing plate and the rubber pad for passing the U-shaped bolts.

Preferably, an open groove is provided in the central area of the connecting portion and the box body, and a mounting plate is mounted on the U-shaped bolt, and the mounting plate is located below the shock-absorbing rubber pad.

Preferably, two pulley structures are provided at both lateral ends of the upper beam, and each pulley structure is installed on the upper beam through the same structure.

Preferably, the shock-absorbing washer is an annular washer matched with a flat spring washer nut, and the material of the shock-absorbing washer is nylon.

Preferably, notches for installing columns are provided at both lateral ends of the upper beam.

Preferably, the upper beam comprises two horizontally laid channel steels with notches facing outwards, the top ends of the two channel steels are fixedly connected as a whole by a connecting plate, and the lower edge horizontal portion of the channel steel is used to install the flat spring washer nut.

Preferably, the upper edge and the lower edge of the channel steel are bent toward the center to form a second folded edge.

The utility model has substantial characteristics and progress compared with the prior art. Specifically, the utility model has the following advantages:

1. The shock-absorbing structure is changed from the lower end of the car body to the upper end, and is specifically installed between the upper beam and the pulley structure, which can directly reduce the vibration between the pulley and the beam and the noise caused.

2. Since the shock-absorbing structure is transferred from the lower end to the upper end of the car body, the height of the car body's columns can be reduced, and the top floor height of the car body can also be reduced, which is convenient for later installation.

3. Due to the ample space, the difficulty of operation is greatly reduced, which facilitates on-site installation, and the difficulty of inspection and maintenance is also reduced accordingly.

4. Because the shock absorber is placed upward, the problem of the original shock absorber rubber pad being easily ineffective in the downward placement is solved, and the car leveling is not prone to deviation.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a schematic structural diagram of a shock absorbing mechanism of an elevator car frame in the prior art.

FIG. 2 is a partial enlarged view of FIG. 1 .

FIG. 3 is an exploded view of a shock absorbing mechanism for an elevator car frame in the utility model.

FIG. 4 is a schematic structural diagram of a shock absorbing mechanism for an elevator car frame in the utility model.

FIG. 5 is a schematic diagram of the overall structure of a shock absorbing mechanism for an elevator car frame in the utility model.

FIG. 6 is a schematic structural diagram of the shock-absorbing rubber pad in the utility model.

FIG. 7 is a schematic structural diagram of an upper beam in the utility model.

In the figure: 1. upper beam; 2. U-shaped bolt; 3. shock-absorbing washer; 4. shock-absorbing rubber pad; 5. flat spring washer nut; 6. pulley structure; 7. column; 11. channel steel; 12. connecting plate; 13. second folded edge; 41. grooved fixing plate; 42. rubber pad; 61. wheel axle; 62. box body; 63. connecting part.

DETAILED DESCRIPTION

The technical solution of the utility model is further described in detail below through specific implementation methods.

As shown in FIGS. 3 to 7 , a shock absorbing mechanism for an elevator car frame includes an upper beam 1 , a U-shaped bolt 2 , a shock absorbing washer 3 , a shock absorbing rubber pad 4 , a flat spring washer nut 5 and a pulley structure 6 .

Two pulley structures 6 are provided at the lateral ends of the upper beam 1, and each pulley structure 6 is installed on the upper beam 1 through the same structure. Both ends of the pulley axle 61 of the pulley structure 6 are locked and installed on the upper beam 1 through U-shaped bolts 2 and flat spring washer nuts 5. The shock-absorbing rubber pad 4 is provided between the U-shaped bolt 2 and the upper beam 1, and the shock-absorbing washer 3 is provided between the flat spring washer nut 5 and the upper beam 1.

The bent portion at the lower end of the U-shaped bolt 2 is used to mount the axle 61 of the pulley.

In this embodiment, a box body 62 is arranged outside the pulley of the pulley structure 6, and the upper edge of the box body 62 is folded outward to form connecting parts 63 on both sides, and the connecting parts 63 on both sides are abutted against the lower end of the shock-absorbing rubber pad 4. The shock-absorbing rubber pad 4 is rectangular as a whole, and the shock-absorbing rubber pad 4 includes a groove-shaped fixing plate 41 and a rubber pad 42 installed in the groove of the groove-shaped fixing plate 41, and the groove-shaped fixing plate 41 and the rubber pad 42 are correspondingly provided with through holes 43 for passing U-shaped bolts.

In order to ensure the strength of the mounting structure and facilitate the removal of the pulley, an open groove is provided in the central area of the connecting portion 63 and the box body 62 , and a mounting plate 8 is mounted on the U-shaped bolt 2 , and the mounting plate 8 is located below the shock-absorbing rubber pad 4 .

The shock-absorbing washer 3 is an annular washer that matches the flat spring washer nut 5, and the material of the shock-absorbing washer 3 is nylon.

The upper beam 1 is provided with notches at both transverse ends for installing the columns 7. After the columns 7 are installed in place, the overall height can be reduced because there is no shock-absorbing structure below to restrict it.

In a preferred embodiment, the upper beam 1 includes two horizontally laid channel steels 11 with notches facing outwards. The top ends of the two channel steels 11 are fixedly connected as a whole by a connecting plate 12. The horizontal portion of the lower edge of the channel steel 11 is used to install the flat spring washer nut 5. The upper and lower edges of the channel steel 11 are bent toward the center to form a second folded edge 13 to strengthen the structure.

Working principle description:

The pulley assembly 6 is used to wind the lifting rope that pulls the entire elevator, so it is easy to vibrate during the movement. The flat spring washer nut, shock-absorbing rubber pad and shock-absorbing washer used in this solution fully absorb the vibration between the pulley and the upper beam, and the upper beam is rigidly connected to the entire car body, making it difficult for the vibration from the pulley to be transmitted to the car body, thereby reducing the noise.

Since the shock absorption is transferred from the bottom to the top and is located at the lower end of the upper beam, it does not occupy too much space outside the car body, especially the space under the car body, so that the height of the columns of the entire car body is reduced and the height of the top floor is also reduced.

This installation method has low modification difficulty and uncomplicated construction. It can be installed on site and can be used regardless of the elevator speed. It has a wide range of applications. While improving the comfort of the elevator, it also provides convenience for subsequent installation, additions and maintenance.

Finally, it should be noted that: The above describes in detail the preferred implementation of this patent, but this patent is not limited to the above implementation. Various changes can be made within the knowledge scope of ordinary technicians in this field without departing from the purpose of this patent.

Claims (10)

1. A shock absorbing mechanism for an elevator car frame, characterized in that it comprises an upper beam, a U-shaped bolt, a shock absorbing washer, a shock absorbing rubber pad, a flat spring washer nut and a pulley structure; Both ends of the pulley axle in the pulley structure are locked and installed on the upper beam by U-shaped bolts and flat spring washer nuts, the shock-absorbing rubber pad is arranged between the U-shaped bolt and the upper beam, and the shock-absorbing washer is arranged between the flat spring washer nut and the upper beam; The bent portion at the lower end of the U-shaped bolt is used to mount the axle of the pulley. 2. The shock-absorbing mechanism for an elevator car frame according to claim 1 is characterized in that a box body is arranged outside the pulley of the pulley structure, and the upper edge of the box body is folded outward to form connecting parts on both sides, and the connecting parts on both sides abut against the lower end of the shock-absorbing rubber pad, and the shock-absorbing rubber pad is rectangular as a whole. 3. The shock absorbing mechanism for an elevator car frame according to claim 2, characterized in that the shock absorbing rubber pad is made of rubber. 4. The shock absorbing mechanism for an elevator car frame according to claim 2 or 3 is characterized in that the shock absorbing rubber pad comprises a groove-shaped fixing plate and a rubber pad installed in the groove of the groove-shaped fixing plate, and corresponding holes are arranged on the groove-shaped fixing plate and the rubber pad for passing U-shaped bolts. 5. The shock absorbing mechanism for an elevator car frame according to claim 4 is characterized in that an open groove is provided in the central area of the connecting portion and the box body, a mounting plate is installed on the U-shaped bolt, and the mounting plate is located below the shock absorbing rubber pad. 6. The shock absorbing mechanism for an elevator car frame according to claim 5, characterized in that two pulley structures are provided at both lateral ends of the upper beam, and each pulley structure is installed on the upper beam through the same structure. 7. The shock absorbing mechanism for an elevator car frame according to claim 1 or 2 or 3 or 5 or 6, characterized in that the shock absorbing washer is an annular washer matched with a flat spring washer nut, and the material of the shock absorbing washer is nylon. 8. The shock absorbing mechanism for an elevator car frame according to claim 7, characterized in that notches for installing columns are provided at both lateral ends of the upper beam. 9. The shock absorbing mechanism for an elevator car frame according to claim 8 is characterized in that: the upper beam comprises two horizontally laid channel steels with notches facing outwards, the top ends of the two channel steels are fixedly connected as a whole by a connecting plate, and the horizontal portion of the lower edge of the channel steel is used to install the flat spring washer nut. 10. The shock absorbing mechanism for an elevator car frame according to claim 9, characterized in that the upper edge and the lower edge of the channel steel are bent toward the center to form a second folded edge.