Damping device for elevator car roof wheel

Abstract

The utility model relates to a damping device for an elevator car roof wheel. The damping device comprises an upper beam, a wheel shaft chamber, the car roof wheel and a damping piece. The upper beam is provided with a vertically-through beam cavity; the axle chambers are distributed in the beam cavities, the upper portions of the axle chambers upwards extend out of the beam cavities, and car roof wheels are rotationally arranged in the axle chambers and distributed in the beam cavities and the areas above the beam cavities. The lower portion of the axle chamber extends downwards out of the beam cavity, and a plurality of left-right through mounting holes are formed in the lower portion of the axle chamber at intervals in the front-back direction. The damping piece is fixed in the mounting hole in the left-right direction, and the upper end of the damping piece is fixedly connected with the lower end of the upper beam. The crosshead sheave serving as a vibration source is close to the upper beam serving as a fixed end, the leverage effect is small, transverse vibration and impact amplification can be avoided, and the stability of the structure is enhanced. The damping block is directly installed below the axle chamber and is close to a vibration source, transverse vibration can be absorbed and attenuated more effectively, vibration transmitted to the whole system is reduced, and the vibration capacity is increased and decreased.

Description

Technical Field

[0001] The utility model relates to the technical field of elevators, in particular to a shock absorbing device for an elevator car top wheel. Background Art

[0002] During operation, elevators must respond to calls to move up, down, and stop, even requiring an emergency stop in certain situations. The faster the elevator travels, the greater the vibration amplitude during operation and leveling, which can more easily affect passenger comfort. Therefore, the proper placement of shock absorbers in the elevator structure is extremely important.

[0003] In the prior art, the connection between the upper beam and the car top wheel mostly adopts an upper beam and lower wheel structure, that is, the upper beam serves as the fixed foundation of the structure, and the lower beam is hoisted and installed below the upper beam by using shock-absorbing pads, spring shock-absorbing or no shock-absorbing structure, and the car top wheel is hoisted and fixed on the lower beam by fixing the car top wheel axle with U-shaped bolts.

[0004] For example, the utility model patent with patent number CN 203715020 U discloses a shock-absorbing device for double car top wheels of an elevator, including a main upper beam and a secondary upper beam hung below the main upper beam, the secondary upper beam is equipped with two car top wheels, a rubber shock-absorbing pad is provided between the main upper beam and the secondary upper beam, the secondary upper beam is suspended below the main upper beam by a first load-bearing bolt, and the first load-bearing bolt is provided with a shock-isolating rubber sleeve located between the main upper beam and the secondary upper beam.

[0005] In the above-mentioned prior art, the top wheel relies primarily on vertical vibration damping provided by the damping assembly, which has limited ability to limit lateral vibration and displacement, making it difficult to effectively control lateral vibration. In the traditional upper beam, lower wheel design, the top wheel is suspended below the upper beam via a lower beam. As a vibration source, the top wheel is far away from the upper beam, which serves as the fixed end. This leads to a significant leverage effect, easily amplifying lateral vibration and impact, and poor structural stability.

[0006] Based on this, it is necessary to study a shock absorbing device for an elevator car top wheel. Utility Model Content

[0007] In view of this, the purpose of the present invention is to provide a shock absorbing device for an elevator car top wheel, which can effectively solve the problem of poor lateral seismic resistance of the upper beam and lower wheel structure of the existing elevator car.

[0008] In order to achieve the above purpose, the technical solution adopted by the present utility model is:

[0009] A shock absorbing device for an elevator car top wheel comprises an upper beam, an axle chamber, a car top wheel and a shock absorbing member;

[0010] The upper beam has a beam cavity that passes through from top to bottom;

[0011] The axle chamber is distributed in the beam cavity, the upper part of the axle chamber extends upward out of the beam cavity, and a car top wheel is rotatably arranged in the axle chamber, and the car top wheel is distributed in the beam cavity and the area above the beam cavity;

[0012] The lower part of the wheel axle chamber extends downward to form a beam cavity, and the lower part of the wheel axle chamber is provided with a plurality of left and right through mounting holes spaced apart in the front-to-back direction;

[0013] The shock absorbing member is fixed in the mounting hole along the left-right direction, and the upper end of the shock absorbing member is fixedly connected to the lower end of the upper beam.

[0014] Furthermore, the upper beam includes two U-shaped plates opening to the left or right, the two U-shaped plates are spaced apart on the left and right and have opposite opening directions, a beam cavity is formed between the two U-shaped plates, and the left and right ends of the shock absorber are fixedly connected to the two U-shaped plates respectively.

[0015] Furthermore, the left and right ends of the upper surfaces of the two U-shaped plates are fixedly connected with guide shoe seat plates.

[0016] Furthermore, the axle chamber includes a side fixing plate, a rope blocking plate and a rope pulley cover;

[0017] The side fixing plates are provided in two groups, the two groups of side fixing plates respectively abut against the left and right inner walls of the beam cavity, and the two groups of side fixing plates extend upward out of the beam cavity;

[0018] Rope blocking plates are fixedly connected to the front and rear sides of the two groups of side fixing plates; and rope pulley covers are fixedly connected to the tops of the two groups of side fixing plates.

[0019] Furthermore, a rope-blocking hole is opened at the lower part of the axle chamber and passes through the left and right sides; a rope-blocking rod is passed through and fixed in the rope-blocking hole, and the rope-blocking rod is located below the car top wheel.

[0020] Furthermore, the rope-blocking hole is an adjustment flat hole facing up and down.

[0021] Furthermore, both ends of the axle of the car top wheel extend out of the axle chamber from the left and right directions and are provided with a bayonet. Axle clamps that cooperate with the bayonet are installed on the left and right outer walls of the axle chamber. The axle clamps are located above the axle and clamp and fix the two ends of the axle.

[0022] Furthermore, the shock-absorbing component includes a shock-absorbing pad, an upper connecting plate and a lower connecting plate; the upper and lower end surfaces of the shock-absorbing pad are respectively fixedly connected with the upper connecting plate and the lower connecting plate, the upper connecting plate is detachably connected to the lower end of the upper beam, and the lower connecting plate is detachably connected to the axle chamber.

[0023] Furthermore, the left and right outer side walls of the lower part of the axle chamber are fixedly connected with support seats, the support seats are correspondingly distributed below the mounting holes, and the lower connecting plate is detachably fixed to the support seats.

[0024] Furthermore, pads are provided between the upper connecting plate and the upper beam, and between the lower connecting plate and the axle chamber, and the pads are located in the mounting holes.

[0025] The beneficial effects of the above technical solution are:

[0026] (1) The present invention arranges the axle chamber in the beam cavity of the upper beam and in the upper part of the beam cavity, and the lower part of the axle chamber is fixedly connected to the lower part of the upper beam through a shock-absorbing member, and the shock-absorbing members are arranged in the left and right directions. Compared with the existing upper beam and lower wheel structure, a new structural layout is formed. The shock-absorbing member located at the lower part can not only provide a good fixing foundation for the axle chamber, but also effectively absorb and reduce lateral vibration; and the two side walls of the upper beam, that is, the two side fixed plates and the side walls of the axle chamber are in a contact and abutment relationship rather than directly fixed. When the axle chamber vibrates, the side walls of the axle chamber are allowed to vibrate in the beam cavity, so that the vibration is reduced by the lower shock-absorbing member, and the limiting effect provided by the two side fixed plates can further prevent the axle chamber from excessive lateral tilting and rollover or violent vibration, effectively solving the problem of poor lateral seismic resistance of the upper beam and lower wheel structure of the existing elevator car, and enhancing the seismic resistance and stability of the structure.

[0027] (2) The utility model sets the axle chamber in the beam cavity of the upper beam and the upper part of the beam cavity, and the car top wheel is set in the axle chamber. The car top wheel as the vibration source is close to the upper beam as the fixed end. Compared with the upper beam and lower wheel structure in the prior art, the lever effect caused is smaller, which can avoid the amplification of lateral vibration and impact and enhance the stability of the structure; and the shock-absorbing block is directly installed below the axle chamber, close to the vibration source, so that the lateral vibration can be more effectively absorbed and attenuated, reducing the vibration transmitted to the entire system and increasing the shock-absorbing ability.

[0028] (3) The axle chamber is arranged in the beam cavity of the upper beam and in the upper part of the beam cavity, rather than being hoisted at the lower end of the upper beam. This can improve the space utilization efficiency of the elevator shaft and, combined with the left and right limit functions formed by the two side walls of the upper beam, significantly improve the safety of the structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a three-dimensional schematic diagram of the utility model;

[0030] Figure 2 for Figure 2 Front view of

[0031] Figure 3 for Figure 2 Bottom view of

[0032] Figure 4 for Figure 2 A top view of

[0033] Figure 5 for Figure 13D schematic diagram of the upper beam removal;

[0034] Figure 6 for Figure 2 Side view of

[0035] Figure 7 This is the parts drawing of the support.

[0036] Figure numerals: 1 is the upper beam, 2 is the axle chamber, 3 is the car top wheel, 4 is the shock absorber, 5 is the guide shoe seat plate, 6 is the rope stop rod, 7 is the axle clamping plate, 8 is the support seat, 9 is the pad, 101 is the beam cavity, 102 is the U-shaped plate, 201 is the mounting hole, 202 is the side fixing plate, 203 is the rope stop plate, 204 is the rope pulley cover, 205 is the rope stop hole, 301 is the axle, 401 is the shock absorber pad, 402 is the upper connecting plate, and 403 is the lower connecting plate. DETAILED DESCRIPTION

[0037] The present invention is described in further detail below with reference to the accompanying drawings and specific embodiments:

[0038] This embodiment aims to provide a shock absorbing device for an elevator car top wheel, which is mainly used for shock absorbing support of the elevator car top wheel, and aims to solve the problem of poor lateral seismic resistance of the upper beam and lower wheel structure of the existing elevator car.

[0039] A shock absorbing device for an elevator car top wheel, such as Figure 1-3 , including an upper beam 1, an axle chamber 2, a car top wheel 3 and a shock absorber 4; the upper beam 1 mainly serves as a fixed foundation for the overall structure, and the upper beam 1 has a beam cavity 101 that runs through from top to bottom; the upper beam 1 includes two U-shaped plates 102 that open to the left or right, and the two U-shaped plates 102 are spaced apart and have opposite opening directions, forming a beam cavity 101 between the two U-shaped plates 102, and the left and right ends of the shock absorber 4 are fixedly connected to the two U-shaped plates 102 respectively. The structure of the U-shaped plate 102 has upper and lower edge plates, which can facilitate fixed connection with components such as the shock absorber 4. The left and right directions in this application are the width directions of the upper beam 1, that is, Figure 3 Up and down direction.

[0040] The left and right ends of the upper surfaces of the two U-shaped plates 102 are fixedly connected with guide shoe seat plates 5. Specifically, the guide shoe seat plates 5 located at the left and right ends of the upper beam 1 fixedly connect the two U-shaped plates 102 in the left and right directions. In addition to increasing the degree of integration of the upper beam 1, the guide shoe seat plates 5 are mainly used to facilitate the installation of guide shoes.

[0041] The axle chamber 2 is distributed in the beam cavity 101, and the upper part of the axle chamber 2 extends upward from the beam cavity 101. The car top wheel 3 is rotatably arranged in the axle chamber 2, and the car top wheel 3 is distributed in the beam cavity 101 and the area above the beam cavity 101; the lower part of the axle chamber 2 extends downward from the beam cavity 101, and the lower part of the axle chamber 2 is provided with three square mounting holes 201 that pass through the left and right sides at intervals along the front-to-back direction.

[0042] The axle chamber 2 is mainly used to install the car top wheel 3. In this embodiment, Figure 5 The axle chamber 2 includes a side fixing plate 202, a rope blocking plate 203 and a rope pulley cover 204; Figure 1 There are two groups of side fixing plates 202, which are respectively in contact with the left and right inner walls of the beam cavity 101. The side fixing plates 202 are not directly fixedly connected to the inner wall of the beam cavity 101, and a movable snap-fit ​​connection relationship is shown. When the car top wheel 3 vibrates, the axle chamber 2 is allowed to vibrate slightly left and right in the beam cavity 101, and energy is dissipated through the shock absorber 4 below; however, the side walls of the beam cavity 101 will form a limiting effect in the left and right directions, and will not allow left and right vibrations with excessive amplitude, thereby preventing the axle chamber 2 from excessive lateral tilt and causing rollover or severe vibration.

[0043] The two sets of side fixing plates 202 extend upward from the beam cavity 101, so that the upper part of the axle chamber 2 extends upward from the beam cavity 101; the front and rear sides of the two sets of side fixing plates 202 are fixedly connected with rope blocking plates 203. The front and rear direction of the present application is the length direction of the upper beam 1, that is, Figure 3 two sets of side fixed plates 202 are fixedly connected to the top of the pulley cover 204, such as Figure 4 In this application, a gap is left between the sheave cover 204 and the rope retaining plate 203 to facilitate the threading of the rope. The two sets of side fixing plates 202 extend downward from the beam cavity 101, so that the lower portion of the axle chamber 2 extends downward from the beam cavity 101. The fixing plates 202 on both sides are provided with corresponding mounting holes 201, so that the shock absorber 4 can be inserted and fixed in the front-to-back direction.

[0044] like Figure 1 and Figure 2 The shock absorber 4 is fixed in the mounting hole 201 along the left-right direction, and the upper end of the shock absorber 4 is fixedly connected to the lower end of the upper beam 1. Figure 7, the shock-absorbing member 4 includes a shock-absorbing pad 401, an upper connecting plate 402 and a lower connecting plate 403; the shock-absorbing pad 401 is square, and the upper and lower end surfaces of the shock-absorbing pad 401 are fixedly connected to the upper connecting plate 402 and the lower connecting plate 403 respectively. The upper connecting plate 402 is detachably connected to the lower end of the upper beam 1. Specifically, the left and right ends of the upper connecting plate 402 are respectively bolted to the lower edge plates of the two U-shaped plates 102; the lower connecting plate 403 is detachably connected to the wheel axle chamber 2. Specifically, the left and right ends of the lower connecting plate 403 are respectively fixedly connected to the fixing plates 202 on both sides; in order to facilitate the fixation of the lower connecting plate 403 to the side fixing plate 202, as Figure 1 The outer wall of the side fixing plate 202 is fixedly connected with a support seat 8, and the support seat 8 is correspondingly distributed below the mounting hole 201, and the lower connecting plate 403 is detachably fixed to the support seat 8.

[0045] Furthermore, in order to facilitate installation and debugging, Figure 1 and Figure 2 A pad 9 is provided between the upper connecting plate 402 and the upper beam 1 , and between the lower connecting plate 403 and the axle chamber 2 , and the pad 9 is located in the mounting hole 201 .

[0046] like Figure 3 The lower portion of the axle chamber 2 is provided with a rope retaining hole 205 extending horizontally. A rope retaining rod 6 is threaded and secured within this hole 205, located below the car's top wheel 3. Nuts are threaded onto each end of the rod 6 for securement. The rope retaining hole 205 is a flat, vertically oriented adjustment hole, allowing the position of the rod 6 to be adjusted vertically. The rod 6 limits the rope's swing range, preventing it from detaching, ensuring the safety of the elevator system under various operating conditions. It reduces contact between the rope and other components, lowering the risk of wear and failure, and extending the rope's service life.

[0047] like Figure 6 Both ends of the axle 301 of the car top wheel 3 extend from the axle chamber 2 in the left and right directions and are provided with a bayonet. The left and right outer walls of the axle chamber 2 are equipped with a wheel axle 301 clamping plate 7 that cooperates with the bayonet. The wheel axle 301 clamping plate 7 is located above the wheel axle 301 and clamps and fixes the two ends of the wheel axle 301, so that the wheel axle 301 remains fixed, and the hub part of the car top wheel 3 can rotate relative to the wheel axle 301.

Claims

1. A shock absorbing device for an elevator car top wheel, characterized in that: It comprises an upper beam (1), an axle chamber (2), a car top wheel (3) and a shock absorbing member (4); The upper beam (1) has a beam cavity (101) that passes through from top to bottom; The axle chamber (2) is distributed in the beam cavity (101), the upper part of the axle chamber (2) extends upward out of the beam cavity (101), a car top wheel (3) is rotatably arranged in the axle chamber (2), and the car top wheel (3) is distributed in the beam cavity (101) and the area above the beam cavity (101); The lower portion of the wheel axle chamber (2) extends downwardly to form a beam cavity (101), and the lower portion of the wheel axle chamber (2) is provided with a plurality of left-right penetrating mounting holes (201) spaced apart in the front-to-back direction; The shock absorbing member (4) is fixed in the mounting hole (201) along the left-right direction, and the upper end of the shock absorbing member (4) is fixedly connected to the lower end of the upper beam (1).

2. The shock absorbing device for an elevator car top wheel according to claim 1, characterized in that: The upper beam (1) comprises two U-shaped plates (102) opening to the left or right, the two U-shaped plates (102) being spaced apart and opening in opposite directions, a beam cavity (101) being formed between the two U-shaped plates (102), and the left and right ends of the shock-absorbing member (4) being fixedly connected to the two U-shaped plates (102) respectively.

3. The shock absorbing device for an elevator car top wheel according to claim 2, characterized in that: The left and right ends of the upper surfaces of the two U-shaped plates (102) are fixedly connected to guide shoe seat plates (5).

4. The shock absorbing device for an elevator car top wheel according to claim 1, characterized in that: The axle chamber (2) comprises a side fixing plate (202), a rope blocking plate (203) and a rope pulley cover (204); Two groups of side fixing plates (202) are provided, and the two groups of side fixing plates (202) respectively abut against the left and right inner walls of the beam cavity (101), and the two groups of side fixing plates (202) extend upward out of the beam cavity (101); Rope blocking plates (203) are fixedly connected to the front and rear sides of the two sets of side fixing plates (202); and rope pulley covers (204) are fixedly connected to the tops of the two sets of side fixing plates (202).

5. The shock absorbing device for an elevator car top wheel according to claim 1, characterized in that: A rope-blocking hole (205) extending leftward and rightward is provided at the lower portion of the wheel axle chamber (2); a rope-blocking rod (6) is fixedly installed in the rope-blocking hole (205), and the rope-blocking rod (6) is located below the car top wheel (3).

6. The shock absorbing device for an elevator car top wheel according to claim 5, characterized in that: The rope-blocking hole (205) is an adjustment flat hole facing up and down.

7. The shock absorbing device for an elevator car top wheel according to claim 1, characterized in that: Both ends of the wheel axle (301) of the car top wheel (3) extend out of the wheel axle chamber (2) in the left and right directions and are provided with bayonet holes. Wheel axle clamping plates (7) that cooperate with the bayonet holes are installed on the left and right outer walls of the wheel axle chamber (2). The wheel axle clamping plates (7) are located above the wheel axle (301) and clamp and fix the two ends of the wheel axle (301).

8. The shock absorbing device for an elevator car top wheel according to claim 1, characterized in that: The shock absorbing member (4) comprises a shock absorbing pad (401), an upper connecting plate (402) and a lower connecting plate (403); the upper and lower end surfaces of the shock absorbing pad (401) are respectively fixedly connected to the upper connecting plate (402) and the lower connecting plate (403); the upper connecting plate (402) is detachably connected to the lower end of the upper beam (1), and the lower connecting plate (403) is detachably connected to the axle chamber (2).

9. The shock absorbing device for an elevator car top wheel according to claim 8, characterized in that: The left and right outer side walls of the lower portion of the wheel axle chamber (2) are fixedly connected with support seats (8), the support seats (8) are correspondingly distributed below the mounting holes (201), and the lower connecting plate (403) is detachably fixed to the support seats (8).

10. The shock absorbing device for an elevator car top wheel according to claim 8, characterized in that: A pad (9) is provided between the upper connecting plate (402) and the upper beam (1), and between the lower connecting plate (403) and the axle chamber (2), and the pad (9) is located in the mounting hole (201).

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