Counterweight structure for high-speed large-tonnage elevator without machine room

Abstract

The utility model relates to elevator technical field, concretely for a kind of counterweight structure for high-speed large-tonnage machine roomless elevator, including outer frame, the inside movable joint of outer frame is matched with counterweight, the upper and lower ends of outer frame are all fixedly connected with guide wheel, the inside fixed connection of outer frame top end has rope group, the top of top guide wheel is fixedly connected with speed measuring assembly, two the speed measuring assembly opposite ends are all fixedly connected with anti-falling assembly, the speed of guide rope is monitored in real time by speed measuring assembly, cooperate the mechanical linkage of hydraulic damper, absorb impact kinetic energy, while impeller is inclined through middle moving block, form mechanical hard lock, double braking ensures the speed of effectively protecting counterweight device movement, the shock-absorbing spring of guide wheel can buffer high-frequency vibration, reduce guide rail abrasion rate, through hydraulic damper can also reduce routine maintenance cost, reduce the wear condition of anti-falling assembly, and the traction wheel structure in auxiliary slide reduces the deflection and shaking of counterweight device.

Description

Technical Field

[0001] This utility model relates to the field of elevator technology, specifically to a counterweight structure for a high-speed, large-tonnage machine-room-less elevator. Background Technology

[0002] Elevators, as a type of vertical transportation tool, are classified into two types based on the installation location of the traction drive device: machine room elevators and machine room-less elevators. Machine room-less elevators are those that utilize modern manufacturing technology to miniaturize the equipment in the machine room while maintaining its original performance, thus eliminating the need for a machine room. The control cabinets, traction machines, speed governors, and other components in the original machine room are moved to the top or side of the elevator shaft, thereby eliminating the traditional machine room and meeting customers' special requirements for height and roof height.

[0003] However, existing machine-room-less elevators require increased counterweights to maintain stability when facing high-speed, heavy-duty elevators. Therefore, the increased counterweights only activate the anti-fall structure when the elevator speed is abnormal, avoiding the common shock absorption structure. Over time, this increases the daily maintenance and repair pressure, and the increased daily wear and tear may actually prevent it from providing adequate protection in the event of an accident.

[0004] In view of this, we propose a counterweight structure for high-speed, large-tonnage machine-room-less elevators. Utility Model Content

[0005] The purpose of this utility model is to provide a counterweight structure for high-speed, high-tonnage machine-room-less elevators, to solve the problems mentioned in the background art. In existing machine-room-less elevators, to maintain stability when facing high-speed, high-tonnage elevators, the counterweight needs to be increased as well. Therefore, the increased counterweight only activates the anti-fall mechanism when the elevator speed is abnormal, avoiding the problems of ordinary shock-absorbing structures increasing daily maintenance and repair pressure over long-term use, and the accelerated daily wear and tear making them less effective in providing protection in case of danger. To achieve the above objective, this utility model provides the following technical solution: A counterweight structure for high-speed, high-tonnage machine-room-less elevators, including an outer frame, a counterweight movably connected inside the outer frame, guide wheels fixedly connected to both the upper and lower ends of the outer frame, a rope assembly fixedly connected inside the top of the outer frame, a speed measuring component fixedly connected to the top of the top guide wheel, and anti-fall components fixedly connected to the opposite ends of the two speed measuring components. An auxiliary slide rail is slidably connected to the other end of each anti-fall component.

[0006] Preferably, the four sides of the outer frame are connected and fixed to each other by screws and nuts, and the interior of the outer frame is designed as a hollow structure. The counterweight is designed as a hexagonal structure, and the opposite sides of the two auxiliary slides are designed as square groove structures.

[0007] Preferably, the guide wheel includes a plate, the bottom of which is threaded into a groove at the top of the outer frame. A barb is fixedly connected to the outward side of the top of the plate. An inner wheel is rotatably connected to the inward side of the two barb rods. Side wheels are rotatably connected to the outward sides of the barb rods. A shock-absorbing spring structure is provided between the side wheels and the barb rods.

[0008] Preferably, the rope assembly includes a shaft rod, both ends of which are connected through to both ends of the outer frame groove. A rope wheel is sleeved on the side surface of the shaft rod located inside the outer frame groove. A gantry is threadedly connected to the inner wall of the outer frame groove, and the bottom end of the gantry is connected through to the side surface of the shaft rod.

[0009] Preferably, the speed measuring component includes a driver, the bottom of which is fixedly connected to one end of the top of the panel, a measuring arm is fixedly connected to one end of the driver, a vertical plate is fixedly connected to one end of the top of the driver, a telescopic rod is connected through the top of the vertical plate, and the other end of the telescopic rod is fixedly connected to one side of the fall protection component.

[0010] Preferably, the fall arrestor includes a shaped frame, one side of which is fixedly connected to one end of a telescopic rod. Hydraulic buffers are connected through both sides of the other end of the shaped frame. Traction wheels are fitted onto the side surfaces of the hydraulic buffers. A block, a moving block, and a turntable are sequentially connected through the opening in the middle of the shaped frame from top to bottom. The bottom of the moving block is designed with a sloping structure, and the sloping surface at the bottom of the moving block is designed with a protruding rod structure. A connecting rod is fixedly connected to the side of the moving block and the block opposite to each other. The connecting rod consists of two bearing seats and a rotating rod. A finger rod is fixedly connected to the top of the block.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows: In this invention, the speed of the guide rope is monitored in real time by a speed measuring component, and the mechanical linkage of the hydraulic buffer absorbs the impact kinetic energy. At the same time, the impeller tilts through the central moving block to form a mechanical hard lock. The double braking ensures effective protection of the speed of the counterweight device. The shock-absorbing spring of the guide wheel can buffer high-frequency vibration and reduce the wear rate of the guide rail.

[0012] In this invention, the hydraulic buffer can reduce daily maintenance costs, does not affect daily elevator use, reduces wear on anti-fall components, and provides additional safety protection measures by avoiding excessive signal systems in the event of power failure through internal mechanical linkage and independent power supply. The traction wheel structure in the auxiliary slide reduces the deflection and shaking of the counterweight device. Attached Figure Description

[0013] Figure 1 This is a top view of the overall structure of this utility model; Figure 2 This is a schematic diagram of the assembly frame connection structure of this utility model; Figure 3 This is an enlarged schematic diagram of the overall top structure of this utility model; Figure 4 This is a schematic diagram of the connection structure between the guide wheel and the rope assembly of this utility model; Figure 5 This is a schematic diagram of the connection structure between the speed measuring component and the fall protection component of this utility model; Figure 6 This is an enlarged structural schematic diagram of the fall arrestor component of this utility model. Figure 7 This is a schematic diagram of the internal structure of the fall arrestor component of this utility model.

[0014] In the diagram: 1. Outer frame; 2. Counterweight; 3. Guide wheel; 301. Panel; 302. Hook rod; 303. Inner wheel; 304. Side wheel; 4. Rope assembly; 401. Axle rotating rod; 402. Gantry; 403. Rope wheel; 5. Speed ​​measuring component; 501. Driver; 502. Measuring arm; 503. Vertical plate; 504. Telescopic rod; 6. Fall protection component; 601. Irregular frame; 602. Hydraulic buffer; 603. Central moving block; 604. Dial wheel; 605. Connecting shaft moving rod; 606. Block; 607. Finger rod; 608. Traction wheel; 7. Auxiliary slide. Detailed Implementation

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0016] Please see Figures 1 to 7 This utility model provides a technical solution: a counterweight structure for a high-speed, large-tonnage machine-room-less elevator, including an outer frame 1, a counterweight block 2 movably connected inside the outer frame 1, guide wheels 3 fixedly connected to both the upper and lower ends of the outer frame 1, a rope group 4 fixedly connected inside the top of the outer frame 1, a speed measuring component 5 fixedly connected to the top of the top guide wheel 3, an anti-fall component 6 fixedly connected to one end of each of the two speed measuring components 5 facing away from each other, and an auxiliary slide rail 7 slidably connected to the other end of the anti-fall component 6. The four sides of the outer frame 1 are connected and fixed by screws and nuts, and the interior of the outer frame 1 is designed as a hollow structure. The counterweight 2 is designed as a hexagonal structure, and the opposite sides of the two auxiliary slides 7 are designed as square groove structures.

[0017] The guide wheel 3 includes a panel 301. The bottom of the panel 301 is threaded into a groove at the top of the outer frame 1. A barb rod 302 is fixedly connected to the outward side of the top of the panel 301. An inner wheel 303 is rotatably connected to the inward side of the two barb rods 302. Side wheels 304 are rotatably connected to the outward sides of the barb rods 302. A shock-absorbing spring structure is provided between the side wheels 304 and the barb rods 302.

[0018] The rope assembly 4 includes a shaft rod 401, both ends of which are connected through to the two ends of the groove in the outer frame 1. A rope wheel 403 is sleeved on the side surface of the shaft rod 401 located in the groove in the outer frame 1. A gantry 402 is threadedly connected to the inner wall of the groove in the outer frame 1, and the bottom end of the gantry 402 is connected through to the side surface of the shaft rod 401.

[0019] The speed measuring component 5 includes a driver 501. The bottom of the driver 501 is fixedly connected to one end of the top of the panel 301. A measuring arm 502 is fixedly connected to one end of the driver 501. A vertical plate 503 is fixedly connected to one end of the top of the driver 501. A telescopic rod 504 is connected through the inside of the top of the vertical plate 503. The other end of the telescopic rod 504 is fixedly connected to one side of the fall protection component 6.

[0020] The fall arrestor 6 includes a special-shaped frame 601. One side of the special-shaped frame 601 is fixedly connected to one end of the telescopic rod 504. Hydraulic buffers 602 are connected through both sides of the other end of the special-shaped frame 601. Traction wheels 608 are sleeved on the side surfaces of the hydraulic buffers 602. A block 606, a moving block 603, and a dial wheel 604 are connected through the opening in the middle of the special-shaped frame 601 from top to bottom. The bottom of the moving block 603 is set as a sloping structure, and the sloping surface at the bottom of the moving block 603 is set as a protruding rod structure. A connecting rod 605 is fixedly connected to the opposite side of the moving block 603 and the block 606. The connecting rod 605 consists of two bearing seats and a rotating rod. A finger rod 607 is fixedly connected to the top of the block 606.

[0021] The usage and advantages of this utility model: A counterweight structure for a high-speed, large-tonnage, machine-room-less elevator, the working process of which is as follows: In operation, first place the counterweight 2 inside the outer frame 1. Then, align the gantry 402 with the groove at the top of the outer frame 1. Use the shaft rod 401 to connect the rope pulley 403. Next, fix the inserts 301 at both the top and bottom of the outer frame 1. Then, connect the inner pulley 303 and the side pulley 304 on the hook rod 302. Pass the power rope (installed without a machine room) through one end of the measuring arm 502 and wrap it around the rope pulley 403. When the elevator malfunctions and the counterweight's upward speed exceeds the set threshold, the drive unit 501 will activate. The motor activates the telescopic rod 504, propelling the irregular frame 601 forward. The moving irregular frame 601 compresses the hydraulic buffer 602, causing the dial wheel 604 to approach the square hole in the auxiliary slide 7. The rotating dial wheel 604 begins to strike the moving block 603, causing it to rotate. At this time, the rotating moving block 603 causes the connecting rod 605 to rotate synchronously. The square block 606, fixed at the other end of the connecting rod 605, causes the finger rod 607 to tilt and lock into the square hole in the auxiliary slide 7, providing resistance to the elevator with abnormal falling speed.

[0022] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A counterweight structure for a high-speed, large-tonnage, machine-room-less elevator, comprising an outer frame (1), characterized in that: The outer frame (1) is movably connected to a counterweight (2). The upper and lower ends of the outer frame (1) are fixedly connected to guide wheels (3). The top of the outer frame (1) is fixedly connected to a rope group (4). The top of the guide wheel (3) is fixedly connected to a speed measuring component (5). The two speed measuring components (5) are fixedly connected to a fall protection component (6) at opposite ends. The other end of the fall protection component (6) is slidably connected to an auxiliary slide rail (7).

2. The counterweight structure for a high-speed, large-tonnage, machine-room-less elevator according to claim 1, characterized in that: The four sides of the outer frame (1) are connected and fixed by screws and nuts, and the interior of the outer frame (1) is set as a hollow structure. The counterweight (2) is set as a hexagonal structure, and the two auxiliary slides (7) are set as square groove structures on opposite sides.

3. The counterweight structure for a high-speed, large-tonnage, machine-room-less elevator according to claim 2, characterized in that: The guide wheel (3) includes a panel (301), the bottom of which is threaded into a groove at the top of the outer frame (1). A barb rod (302) is fixedly connected to the outward side of the top of the panel (301). An inner wheel (303) is rotatably connected to the inward side of the two barb rods (302). Side wheels (304) are rotatably connected to both outward sides of the barb rods (302). A shock-absorbing spring structure is provided between the side wheels (304) and the barb rods (302).

4. The counterweight structure for a high-speed, large-tonnage, machine-room-less elevator according to claim 2, characterized in that: The rope assembly (4) includes a shaft rod (401), both ends of which are connected through to both ends of the groove of the outer frame (1). A rope wheel (403) is sleeved on the side surface of the shaft rod (401) located in the groove of the outer frame (1). A gantry (402) is threadedly connected to the inner wall of the groove of the outer frame (1), and the bottom end of the gantry (402) is connected through to the side surface of the shaft rod (401).

5. The counterweight structure for a high-speed, large-tonnage, machine-room-less elevator according to claim 3, characterized in that: The speed measuring component (5) includes a driver (501), the bottom of which is fixedly connected to one end of the top of the panel (301), a measuring arm (502) is fixedly connected to one end of the driver (501), a vertical plate (503) is fixedly connected to one end of the top of the driver (501), a telescopic rod (504) is connected through the inside of the top of the vertical plate (503), and the other end of the telescopic rod (504) is fixedly connected to one side of the fall protection component (6).

6. The counterweight structure for a high-speed, large-tonnage, machine-room-less elevator according to claim 5, characterized in that: The fall arrestor assembly (6) includes a special-shaped frame (601). One side of the special-shaped frame (601) is fixedly connected to one end of the telescopic rod (504). Hydraulic buffers (602) are connected through both sides of the other end of the special-shaped frame (601). Traction wheels (608) are sleeved on the side surfaces of the hydraulic buffers (602). A block (606), a moving block (603), and a dial wheel (604) are connected through the opening in the middle of the special-shaped frame (601) from top to bottom. The bottom of the moving block (603) is set as a slope structure, and the slope at the bottom of the moving block (603) is set as a protruding rod structure. A connecting rod (605) is fixedly connected to the opposite side of the moving block (603) and the block (606). The connecting rod (605) consists of two bearing seats and a rotating rod. A finger rod (607) is fixedly connected to the top of the block (606).

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