Cage connection structure and hoist

Abstract

The present invention relates to the technical field of engineering machinery, and discloses a cage connection structure and an elevator. The cage connection structure comprises a cage (10), a drive mechanism (20), a cage connection assembly, a drive mechanism connection assembly, a buffer pad (30) and a buffer assembly, wherein the cage connection assembly is connected to the top of the cage, the drive mechanism connection assembly is connected to the bottom of the drive mechanism, the buffer assembly comprises a buffer rod and an elastic member (41), the buffer pad is arranged between a first connecting transverse plate (11) and a second connecting transverse plate (21), the buffer rod runs through the first connecting transverse plate and the second connecting transverse plate, and the elastic member is respectively arranged between a first flange and the first connecting transverse plate and between a second flange and the second connecting transverse plate. The cage connection structure provided by the present application can effectively reduce the vibration of the elevator, reduce the noise generated, and improve the comfort of the passengers and the safety performance of the elevator.

Description

Technical Field

[0001] The present invention relates to the technical field of engineering machinery, and in particular to a cage connection structure and a hoist. Background Art

[0002] The connection between the drive unit and the cage of existing elevators is typically rigid. The drive unit transmits power and vibration to the cage via a pin. However, due to the hollow, thin-walled cage structure, vibration is diffused and amplified within the cage. When the cage vibrates, it is fed back to the drive system via the pin, exacerbating the overall vibration intensity. This causes occupants to feel uncomfortable and insecure, and long-term vibration can also pose a safety hazard. Therefore, improvements are necessary. Summary of the Invention

[0003] The purpose of the present invention is to overcome the problem of excessive vibration at the connection between the cage and the driving component of the construction elevator in the prior art, and to provide a cage connection structure and a construction elevator.

[0004] In order to achieve the above-mentioned objectives, the present invention provides a cage connection structure on the one hand, which includes a cage, a drive mechanism, a cage connection assembly, a drive mechanism connection assembly, a buffer pad and a buffer assembly. The cage connection assembly is connected to the top of the cage, and the drive mechanism connection assembly is connected to the bottom of the drive mechanism. The buffer assembly includes a buffer rod and an elastic member. The cage connection assembly includes a first connecting cross plate located at the top, and the drive mechanism connection assembly includes a second connecting cross plate located at the bottom. The buffer pad is arranged between the first connecting cross plate and the second connecting cross plate, and the buffer rod is arranged through the first connecting cross plate and the second connecting cross plate, and the two ends of the buffer rod are provided with a first flange located below the first connecting cross plate and a second flange located above the second connecting cross plate, and the elastic members are respectively arranged between the first flange and the first connecting cross plate and between the second flange and the second connecting cross plate.

[0005] Through the above technical solution, since the buffer pad is arranged between the first connecting transverse plate and the second connecting transverse plate, and the elastic member is located between the first flange and the first connecting transverse plate and between the second flange and the second connecting transverse plate, at the moment the elevator starts, the direction of gravity acting on the cage is downward, and the direction of acceleration acting on the driving mechanism is upward. The buffer pad and the first connecting transverse plate and the second connecting transverse plate will be temporarily separated. The first connecting transverse plate squeezes the elastic member between the first connecting transverse plate and the first flange downward, and at the same time, the second connecting transverse plate squeezes the elastic member between the second connecting transverse plate and the second flange upward. The elastic member can absorb impact loads in two directions, thereby effectively reducing vibration at the moment the elevator starts.

[0006] At the moment the elevator stops, the cage accelerates upward due to inertia, while the drive system accelerates downward due to braking. This causes the first connecting cross plate to press the buffer pad upward, while the second connecting cross plate presses the buffer pad downward. The buffer pad can absorb the impact energy of the first and second connecting cross plates, thereby effectively reducing the vibration of the elevator at the moment of stop. Therefore, the cage connection structure provided by this application can effectively reduce the vibration of the elevator, reduce the noise generated, and improve the comfort of passengers and the safety performance of the elevator.

[0007] Optionally, the buffer rod includes a bolt, a nut and a clip, the nut is arranged on the screw rod of the bolt, one of the nut and the head of the bolt constitutes the first flange, and the other constitutes the second flange, and the clip can position the nut on the screw rod of the bolt.

[0008] Optionally, a flange is formed at the end of the bolt, and the buckle includes two clamps arranged between the flange and the nut, and the two clamps are sleeved on the screw rod.

[0009] Optionally, the cage connection assembly includes a cage ear plate, a first pin shaft, a first connecting vertical plate and the first connecting horizontal plate, the cage ear plate is connected to the cage, the first connecting vertical plate is fixedly connected to the first connecting horizontal plate, and the first pin shaft passes through the first connecting vertical plate and the cage ear plate.

[0010] Optionally, the drive mechanism connecting assembly includes a drive mechanism ear plate, a second pin shaft, a second connecting vertical plate and the second connecting horizontal plate, the drive mechanism ear plate is connected to the drive mechanism, the second connecting vertical plate is fixedly connected to the second connecting horizontal plate, and the second pin shaft passes through the second connecting vertical plate and the drive mechanism ear plate.

[0011] Optionally, the first pin shaft and the second pin shaft are arranged perpendicular to each other.

[0012] Optionally, the cage connection structure includes two buffer assemblies, and the two buffer assemblies are respectively arranged at both ends of the first connecting cross plate.

[0013] Optionally, the buffer pad is a rubber pad.

[0014] Optionally, the elastic member includes a disc spring.

[0015] A second aspect of the present invention provides an elevator comprising the cage connection structure as described above. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a schematic diagram of a cage connection structure according to a preferred embodiment of the present invention;

[0017] Figure 2 It further shows Figure 1 The gear transmission structure of the driving mechanism of the cage connection structure;

[0018] Figure 3 yes Figure 1 Schematic diagram of the screw, bolt and buckle connection of the cage connection structure;

[0019] Figure 4 yes Figure 3 Schematic diagram of the buckle.

[0020] Description of Reference Numerals

[0021] 10-cage 20-driving mechanism 30-buffer pad 41-elastic member 42-bolt 43-nut 44-clip

[0022] 11-first connecting horizontal plate 12-cage ear plate 13-first pin 14-first connecting vertical plate

[0023] 21- Second connecting horizontal plate 22- Driving mechanism ear plate 23- Second pin 24- Second connecting vertical plate

[0024] 51- driving gear 52- back wheel 53- rack 54- side roller

[0025] 45-flange 46-clamp DETAILED DESCRIPTION

[0026] The following describes the specific embodiments of the present invention in detail with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only used to illustrate and explain the present invention and are not intended to limit the present invention.

[0027] like Figure 1 and Figure 2As shown, the present invention provides a cage connection structure, which includes a cage 10, a drive mechanism 20, a cage connection assembly, a drive mechanism connection assembly, a buffer pad 30 and a buffer assembly, the cage connection assembly is connected to the top of the cage 10, the drive mechanism connection assembly is connected to the bottom of the drive mechanism 20, the buffer assembly includes a buffer rod and an elastic member 41, the cage connection assembly includes a first connecting transverse plate 11 located at the top, the drive mechanism connection assembly includes a second connecting transverse plate 21 located at the bottom, the buffer pad 30 is arranged between the first connecting transverse plate 11 and the second connecting transverse plate 21, the buffer rod is arranged through the first connecting transverse plate 11 and the second connecting transverse plate 21, and the two ends of the buffer rod are provided with a first flange below the first connecting transverse plate 11 and a second flange above the second connecting transverse plate 21, and the elastic member 41 is respectively arranged between the first flange and the first connecting transverse plate 11 and between the second flange and the second connecting transverse plate 21.

[0028] Since the buffer pad is arranged between the first connecting transverse plate 11 and the second connecting transverse plate 21, and the elastic member 41 is located between the first flange and the first connecting transverse plate 11 and between the second flange and the second connecting transverse plate 21, at the moment the elevator starts, the direction of gravity acting on the cage 10 is downward, and the direction of acceleration acting on the driving mechanism 20 is upward, the buffer pad 30 and the first connecting transverse plate 11 and the second connecting transverse plate 21 will be temporarily separated, and the first connecting transverse plate 11 squeezes the elastic member 41 between the first connecting transverse plate 11 and the first flange downward, while the second connecting transverse plate 21 squeezes the elastic member 41 between the second connecting transverse plate 21 and the second flange upward. The elastic member 41 can absorb impact loads in two directions, thereby effectively reducing vibration at the moment the elevator starts.

[0029] At the moment the elevator stops, the cage 10 will have an upward acceleration due to inertia, and the drive mechanism 20 will have a downward acceleration due to the brake stop, causing the first connecting transverse plate 11 to press the buffer pad 30 upward, while the second connecting transverse plate 21 presses the buffer pad 30 downward. The buffer pad 30 can absorb the impact energy of the first connecting transverse plate 11 and the second connecting transverse plate 21, thereby effectively reducing the vibration of the elevator at the moment of stopping. Therefore, the cage connection structure provided by the present application can effectively reduce the vibration of the elevator, reduce the noise generated, and improve the comfort of the passengers and the safety performance of the elevator.

[0030] The area of ​​the buffer pad should be no less than the contact area between the first connecting transverse plate 11 and the second connecting transverse plate 21 to prevent contact between the first connecting transverse plate 11 and the second connecting transverse plate 21 .

[0031] The buffer rod can be of an appropriate structure. The buffer rod includes a bolt 42, a nut 43 and a buckle 44. The nut 43 is arranged on the screw of the bolt 42. One of the nut 43 and the head of the bolt 42 constitutes the first flange, and the other constitutes the second flange. The buckle 44 can position the nut 43 on the screw of the bolt 42. Figure 1 In the embodiment, the bolt 42 passes through the first connecting transverse plate 11 and the second connecting transverse plate 21 from the bottom upward, the nut constitutes the second flange, and the head of the bolt 42 constitutes the first flange.

[0032] During the operation of the elevator, the cage 10 and the drive mechanism 20 will undergo lateral displacement, thereby generating lateral shear force on the buffer assembly connecting the first connecting transverse plate 11 and the second connecting transverse plate 21. Since the bolts are one-piece molded parts and have high structural reliability, they can withstand the generated lateral shear force and ensure the safety of the elevator.

[0033] The head of the bolt and the first connecting horizontal plate 11 can stably restrict the elastic member 41 therebetween; on the other hand, the buckle 44 provided above the nut 43 can stably restrict the nut between the elastic member 41 and the buckle 44, preventing the nut 43 from falling off the screw of the bolt 42. Figure 3 and Figure 4 As shown, the end of the bolt 42 is formed with a flange 45, and the buckle 44 includes two clamps 46. The two clamps 46 are sleeved on the screw to position the nut 43 on the screw. The diameter of the central through hole formed by the two clamps 46 is smaller than the diameter of the flange 45, so that the clamps 46 cannot fall out of the screw. The two clamps 46 can be connected by bolts, and a washer is placed between the two clamps to enhance the stability of the clamp connection.

[0034] Among them, the elastic part 41 can be a spring, more preferably a disc spring. The disc spring has a large load, short stroke, and small space requirement. It can stably absorb the impact of the cage and the drive mechanism, and does not require too much compression length. In particular, when the elevator is in a stationary state, the elastic part 41 located at the head of the bolt 42 and the first connecting cross plate 11 will always be compressed. The disc spring with a large load characteristic can meet this requirement.

[0035] The buffer pad 30 may be a rubber pad, which can completely isolate the first connecting transverse plate 11 and the second connecting transverse plate 21 from direct contact, thereby preventing the first connecting transverse plate 11 and the second connecting transverse plate 21 from making rigid contact when the buffer pad 30 is compressed.

[0036] The cage connection assembly includes a cage ear plate 12, a first pin 13, a first connecting vertical plate 14 and the first connecting horizontal plate 11, wherein the cage ear plate 12 is connected to the cage 10, the first connecting vertical plate 14 is fixedly connected to the first connecting horizontal plate 11, and the first pin 13 passes through the first connecting vertical plate 14 and the cage ear plate 12, wherein the first connecting vertical plate 14 is welded to the first connecting horizontal plate 11, and the cage ear plate 12 is welded to the cage 10. The first pin 13 is a sensing pin that can feed back the load size of the cage 10 to the electronic control system to determine whether the load is overloaded and ensure the safety of the passengers.

[0037] The driving mechanism connecting assembly includes a driving mechanism ear plate 22, a second pin shaft 23, a second connecting vertical plate 24 and the second connecting horizontal plate 21, the driving mechanism ear plate 22 is connected to the driving mechanism 20, the second connecting vertical plate 24 is fixedly connected to the second connecting horizontal plate 21, and the second pin shaft 23 passes through the second connecting vertical plate 24 and the driving mechanism ear plate 22, wherein the second connecting vertical plate 24 is welded to the second connecting horizontal plate 21, and the driving mechanism ear plate 22 is welded to the driving mechanism 20.

[0038] In order to ensure that the first connecting transverse plate 11 and the second connecting transverse plate 21 are subjected to balanced forces, as shown in FIG. Figure 1 As shown, the first connecting vertical plate 14 and the second connecting vertical plate 24 are both welded to the middle position of the horizontal plate, so Figure 1 In the illustrated embodiment, a set of buffer assemblies is provided on both sides of the first connecting transverse plate 11, symmetrically about the center of the first connecting transverse plate 11. This ensures uniform force distribution between the first connecting transverse plate 11 and the second connecting transverse plate 21, while also enhancing vibration absorption. Furthermore, if one set of buffer assemblies fails, the other set can still maintain the connection between the cage connection assembly and the drive mechanism connection assembly, improving the safety performance of the elevator.

[0039] Of course, the present application is not limited to the structure of setting two groups of buffer components. Depending on the specific situation of the elevator, a buffer component can be set at each of the four corners of the first connecting horizontal plate 11, or more buffer components can be set. These are all optional implementation methods.

[0040] In addition, the first pin 13 of the cage connection assembly and the second pin 23 of the drive mechanism connection assembly are vertically arranged in space, such as Figure 1As shown, the first pin 13 and the second pin 23 are both arranged horizontally, but they form a 90-degree angle in space. This allows the cage and the drive mechanism to have four degrees of freedom in space: front, back, left, and right. This facilitates factory commissioning or commissioning of the elevator during maintenance. At the same time, if either the cage or the drive mechanism is not in a vertical position during operation, the first pin 13 and the second pin 23 can be rotated and adjusted to promptly return the components to the correct motion state, avoiding any jamming.

[0041] refer to Figure 2 In the structure shown, the driving mechanism includes a gear transmission structure to control the lifting and lowering of the cage, wherein the gear transmission structure includes a driving gear 51, a back wheel 52, a rack 53 and a side roller 54. In the preferred embodiment of the present application, the axis of the first connecting vertical plate 14 is located between the meshing line of the driving gear 51 and the rack 53 and the center line of the back wheel 52, and the lever arm is shorter, so that the eccentric load moment is smaller than the eccentric load moment in the currently commonly used double-hanging-point connected construction elevator, so that the horizontal force of the driving gear 51, the back wheel 52, and the side roller 54 becomes smaller, so that the gear transmission structure of the driving mechanism has better reliability.

[0042] A second aspect of the present application provides an elevator, which includes the cage connection structure as described above, and the elevator can be a construction elevator.

[0043] The preferred embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited thereto. Within the scope of the technical concept of the present invention, various simple variations of the technical solution of the present invention may be made. This includes combining the specific technical features in any suitable manner. To avoid unnecessary repetition, the present invention will not further describe various possible combinations. However, these simple variations and combinations should also be considered as disclosed in the present invention and fall within the scope of protection of the present invention.

Claims

1. A cage connection structure, characterized in that: The cage connection structure comprises a cage (10), a driving mechanism (20), a cage connection assembly, a driving mechanism connection assembly, a buffer pad (30) and a buffer assembly, wherein the cage connection assembly is connected to the top of the cage (10), the driving mechanism connection assembly is connected to the bottom of the driving mechanism (20), and the buffer assembly comprises a buffer rod and an elastic member (41). The cage connection assembly includes a first connecting transverse plate (11) located at the top, the drive mechanism connection assembly includes a second connecting transverse plate (21) located at the bottom, the buffer pad (30) is arranged between the first connecting transverse plate (11) and the second connecting transverse plate (21), the buffer rod is arranged to pass through the first connecting transverse plate (11) and the second connecting transverse plate (21), and the two ends of the buffer rod are provided with a first flange located below the first connecting transverse plate (11) and a second flange located above the second connecting transverse plate (21), and the elastic member (41) is respectively arranged between the first flange and the first connecting transverse plate (11) and between the second flange and the second connecting transverse plate (21); The buffer rod comprises a bolt (42), a nut (43) and a buckle (44); the nut (43) is arranged on the screw rod of the bolt (42); one of the nut (43) and the head of the bolt (42) constitutes the first flange, and the other constitutes the second flange; the buckle (44) can position the nut (43) on the screw rod of the bolt (42); The cage connection assembly comprises a cage ear plate (12), a first pin shaft (13), a first connecting vertical plate (14) and the first connecting horizontal plate (11); the cage ear plate (12) is connected to the cage (10); the first connecting vertical plate (14) is fixedly connected to the first connecting horizontal plate (11); and the first pin shaft (13) passes through the first connecting vertical plate (14) and the cage ear plate (12); The driving mechanism connecting assembly comprises a driving mechanism ear plate (22), a second pin shaft (23), a second connecting vertical plate (24) and the second connecting horizontal plate (21); the driving mechanism ear plate (22) is connected to the driving mechanism (20); the second connecting vertical plate (24) is fixedly connected to the second connecting horizontal plate (21); and the second pin shaft (23) passes through the second connecting vertical plate (24) and the driving mechanism ear plate (22); The cage connection structure comprises two buffer components, and the two buffer components are respectively arranged at the two ends of the first connecting transverse plate (11).

2. The cage connection structure according to claim 1, characterized in that: A flange (45) is formed at the end of the bolt (42), and the buckle (44) includes two clamps (46) arranged between the flange (45) and the nut (43), and the two clamps (46) are sleeved on the screw rod.

3. The cage connection structure according to claim 1, characterized in that: The first pin shaft (13) and the second pin shaft (23) are arranged perpendicular to each other.

4. The cage connection structure according to any one of claims 1 to 3, characterized in that: The buffer pad (30) is a rubber pad.

5. The cage connection structure according to any one of claims 1 to 3, characterized in that: The elastic member (41) comprises a disc spring.

6. A lift, characterized in that: The elevator comprises a cage connection structure as described in any one of claims 1-5.

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