WO2022000964A1

WO2022000964A1 - Device for testing jacking force to side wall of elevator car

Info

Publication number: WO2022000964A1
Application number: PCT/CN2020/131348
Authority: WO
Inventors: 吴超
Original assignee: 迅达（中国）电梯有限公司
Priority date: 2020-06-30
Filing date: 2020-11-25
Publication date: 2022-01-06
Also published as: CN111620213A

Abstract

A device for testing the jacking force to a side wall of an elevator car, comprising a supporting frame (110, 120, 130), a linear actuator (10), a press plate (150) and vacuum suction cups (101). The linear actuator (10) is mounted on the supporting frame (110, 120, 130). The press plate (150) is connected onto the linear actuator (10). The vacuum suction cups (101) are fixed to the bottom of the supporting frame (110, 120, 130). The linear actuator (101) is used for pushing the press plate (150) onto the side wall of the car of the elevator so as to apply preset jacking force to the side wall of the car. The vacuum suction cups (101) are used for adhering to the bottom wall of the car of the elevator so as to ensure that the supporting frame (110, 120, 130) keeps fixed when the press plate (150) is pushed. The vacuum suction cups (101) solve the problem in which leverage is difficult. The vacuum suction cups may be repeatedly used, and no related component will be damaged. In addition, the height position and the horizontal position of the press plate (150) may be adjusted, so that any area on the side wall of the tested car can be covered.

Description

Elevator car side wall top force test device

technical field

The invention relates to a device for testing the top force of a side wall of an elevator car.

Background technique

According to the elevator safety standard EN81-20, when the jacking force of 1000N is evenly distributed in any 100 square centimeter area on the side wall of the car, the plastic deformation of the corresponding area of the side wall of the car cannot exceed 1mm. In order to perform the jacking force test on the side walls of the car, in the prior art, the entire elevator car needs to be installed on a dedicated test bench. After the entire car is installed, it is difficult to apply a top force of 1000N. If one person exerts the force, the force cannot reach it, and if two people exert the force, the space is crowded and limited, but it cannot reach 1000N. Then consider using the fixed bracket to borrow force, the fixed bracket needs a fixed point, and then think of fixing the bracket after drilling holes on the bottom wall of the car, first rule out, because the bottom wall of the car cannot be damaged, many times the car test still has There are many test requirements related to the bottom wall of the car. Then, considering that the tooling is fixed on the ground outside the car, and the long arm of the tooling is used to penetrate into the car, this is also excluded, because firstly, the external ground cannot be arbitrarily hit the expansion bolts due to safety considerations, and secondly, even if the expansion bolts can be hit, The location of each test may also be different, because the size of the car is different each time, and the time is long, and all the holes are drilled on the external ground. Third, the long arm goes deep into the car. Due to the interference of the door lintel, the cantilever cannot reach the area above the door lintel, so that it cannot cover the requirements of any area. Fourth, if it is a deep car, the cantilever needs to reach about 2.5 meters, and the strength of the entire cantilever is also a difficult problem.

SUMMARY OF THE INVENTION

The purpose of the present invention is to solve at least one aspect of the above-mentioned problems and deficiencies in the prior art.

According to one aspect of the present invention, a device for testing the top force of an elevator car side wall is provided, comprising: a support frame; a linear actuator mounted on the support frame; a pressing plate connected to the linear actuator; and vacuum suction cups, fixed to the bottom of the support frame. The linear actuator is used for pushing the pressing plate on the side wall of the car of the elevator, so as to exert a predetermined pushing force on the side wall of the car, and the vacuum suction cup is used for adsorbing on the bottom wall of the car of the elevator to ensure that the support frame remains stationary when the pressing plate is pushed up.

According to an exemplary embodiment of the present invention, the support frame includes: a base frame to which the vacuum suction cups are fixed; a main body frame to be fixed to the base frame; and a movable frame to be movably installed In the main frame, the linear actuator is mounted on the movable frame, and can move along with the movable frame in a vertical direction perpendicular to the bottom wall of the car.

According to another exemplary embodiment of the present invention, the elevator car side wall jacking force testing device further comprises a rotating arm, the rotating arm is rotatably mounted on the movable frame; the linear actuator It is mounted on the swivel arm, and can rotate together with the swivel arm around a horizontal axis parallel to the bottom wall of the car.

According to another exemplary embodiment of the present invention, the elevator car side wall jacking force testing device further includes a mounting seat, the mounting seat is mounted on the movable frame; one end of the rotating arm rotates The linear actuator is mounted on the other end of the rotating arm.

According to another exemplary embodiment of the present invention, a slide rail extending in the vertical direction is mounted on the main frame, and a slider is mounted on the movable frame, the slider and the The sliding rails are slidably matched to guide the movable frame to slide up and down along the sliding rails.

According to another exemplary embodiment of the present invention, the elevator car side wall jacking force testing device further includes an electric driving device mounted on the main frame, and the electric driving device is used for driving the movable frame Move up and down in the vertical direction.

According to another exemplary embodiment of the present invention, the electric driving device includes a servo motor and a motor control device that automatically controls the servo motor, so that the height position of the movable frame can be automatically adjusted.

According to another exemplary embodiment of the present invention, the linear actuator includes an electric cylinder, and the pressing plate is connected to an end of a drive shaft of the electric cylinder.

According to another exemplary embodiment of the present invention, the elevator car side wall top force testing device further includes: a force sensor, mounted on the linear actuator, for detecting that the linear actuator exerts a force on the linear actuator. a pushing force on the pressure plate; and a pushing force controller, which automatically controls the linear actuator according to the pushing force detected by the force sensor until the pushing force exerted by the linear actuator on the pressure plate equal to the predetermined jacking force.

According to another exemplary embodiment of the present invention, the elevator car side wall jacking force testing device further includes an air extraction device, the air extraction device is mounted on the support frame and is in air communication with the vacuum suction cup , which is used to evacuate the inside of the vacuum suction cup, so that the vacuum suction cup is adsorbed on the bottom wall of the car.

According to another exemplary embodiment of the present invention, the elevator car side wall jacking force testing device further includes a fixing seat, the fixing seat is fixed to the support frame, and the vacuum suction cup is fixed to the fixing seat The fixed seat is formed with a ventilation air passage for connecting the vacuum suction cup to the air suction device.

According to another exemplary embodiment of the present invention, the elevator car side wall pushing force testing device includes a plurality of vacuum suction cups, and the plurality of vacuum suction cups communicate with the suction air through the ventilation air passage in the fixed seat. The device is in gas communication.

According to another exemplary embodiment of the present invention, the elevator car side wall jacking force testing device further includes a plurality of rollers, and the plurality of rollers are installed on the bottom of the support frame, so that the elevator car The sidewall top force testing device can be moved by the rollers.

According to another exemplary embodiment of the present invention, the surface area of the pressing plate in contact with the side wall of the car is equal to 100 square centimeters, and the predetermined jacking force is equal to 1000 Newtons.

According to another exemplary embodiment of the present invention, the linear actuator includes a servo electric cylinder, which can exert a jacking force of 1000 Newtons on the side wall of the car by controlling the servo electric cylinder.

According to another exemplary embodiment of the present invention, the suction force generated by each vacuum suction cup includes a vertical suction force perpendicular to the surface of the bottom wall of the car and a horizontal suction force parallel to the surface of the bottom wall of the car; The vertical suction force of the suction cups is within the range of 3000-4000N, and the horizontal suction force of each vacuum suction cup is within the range of 1500-2000N.

According to another exemplary embodiment of the present invention, the support frame is an aluminum profile frame.

In the foregoing exemplary embodiments of the present invention, the use of vacuum chucks conveniently solves the problem of difficulty in leveraging, and the vacuum chucks can be used repeatedly without damaging any related components, with low cost and improved testing efficiency.

Furthermore, in some of the foregoing exemplary embodiments of the present invention, the height and horizontal positions of the pressure plates are adjustable to cover any area on the side walls of the car being tested.

Other objects and advantages of the present invention will be apparent from the following description of the present invention with reference to the accompanying drawings, and may assist in a comprehensive understanding of the present invention.

Description of drawings

FIG. 1 shows a schematic diagram of an elevator car side wall jacking force testing device according to an exemplary embodiment of the present invention;

FIG. 2 shows a schematic perspective view of an elevator car side wall jacking force testing device according to an exemplary embodiment of the present invention.

detailed description

The technical solutions of the present invention will be further described in detail below through embodiments and in conjunction with the accompanying drawings. In the specification, the same or similar reference numerals refer to the same or similar parts. The following description of the embodiments of the present invention with reference to the accompanying drawings is intended to explain the general inventive concept of the present invention, and should not be construed as a limitation of the present invention.

Furthermore, in the following detailed description, for convenience of explanation, numerous specific details are set forth in order to provide a thorough understanding of the embodiments of the present disclosure. Obviously, however, one or more embodiments may be practiced without these specific details. In other instances, well-known structures and devices have been shown in illustration to simplify the drawings.

According to a general technical concept of the present invention, a device for testing the top force of a side wall of an elevator car is provided, comprising: a support frame; a linear actuator mounted on the support frame; a pressing plate connected to the linear actuator and a vacuum suction cup fixed to the bottom of the support frame. The linear actuator is used for pushing the pressing plate on the side wall of the car of the elevator, so as to exert a predetermined pushing force on the side wall of the car, and the vacuum suction cup is used for adsorbing on the bottom wall of the car of the elevator to ensure that the support frame remains stationary when the pressing plate is pushed up.

Fig. 1 shows a schematic diagram of an elevator car side wall pushing force testing device according to an exemplary embodiment of the present invention; Fig. 2 shows an elevator car side wall pushing force testing device according to an exemplary embodiment of the present invention three-dimensional schematic diagram.

As shown in FIG. 1 and FIG. 2 , in the illustrated embodiment, the elevator car side wall top force testing device mainly includes:

support frames

110 , 120 , 130 , linear actuator 10 , pressing plate 150 and vacuum suction cup 101 . The linear actuator 10 is mounted on the

support frames

110 , 120 , 130 . The platen 150 is connected to the linear actuator 10 . The vacuum chuck 101 is fixed to the bottom of the

supports

110 , 120 , 130 .

As shown in FIGS. 1 and 2 , in the illustrated embodiment, the linear actuator 10 is used to push the pressing plate 150 on the car side wall 2 of the elevator, so as to exert a predetermined thrust on the car side wall 2 force F. The vacuum suction cup 101 is used for suction on the bottom wall 1 of the elevator car, so as to ensure that the

support frames

110 , 120 and 130 remain stationary when the pressing plate 150 is pushed up. This requires that the vacuum suction cup 101 can withstand a predetermined pushing force F, that is, the horizontal suction force that the vacuum suction cup 101 can generate should be greater than the predetermined pushing force F.

As shown in FIGS. 1 and 2 , in the illustrated embodiment, the

support frames

110 , 120 and 130 mainly include: a base frame 110 , a main frame 120 and a movable frame 130 . The vacuum chuck 101 is fixed to the bottom of the base frame 110 . The main body frame 120 is fixed on the base frame 110 . The movable frame 130 is movably mounted on the main body frame 120 . The linear actuator 10 is mounted on the movable frame 130 and can move along with the movable frame 130 along the vertical direction Z perpendicular to the bottom wall 1 of the car.

As shown in Figs. 1 and 2, in the illustrated embodiment, the elevator car side wall jacking force testing device further includes a rotating arm 140. The rotating arm 140 is rotatably attached to the movable frame 130 . The linear actuator 10 is mounted on the rotating arm 140 , and can rotate together with the rotating arm 140 around a horizontal axis R parallel to the car bottom wall 1 .

As shown in FIG. 1 and FIG. 2 , in the illustrated embodiment, the elevator car side wall jacking force testing device further includes a mounting seat 132 . The mount 132 is mounted on the movable frame 130 . One end of the rotating arm 140 is rotatably mounted on the mounting seat 132 , and the linear actuator 10 is mounted on the other end of the rotating arm 140 .

As shown in FIGS. 1 and 2 , in the illustrated embodiment, a slide rail 121 extending in the vertical direction Z is installed on the main frame 120 . A sliding block 131 is installed on the movable frame 130 , and the sliding block 131 is slidably matched with the sliding rail 121 to guide the movable frame 130 to slide up and down along the sliding rail 121 .

As shown in FIG. 1 and FIG. 2 , in the illustrated embodiment, the elevator car side wall jacking force testing device further includes an electric drive device 20 mounted on the main frame 120 , and the electric drive device 20 is used to drive the movable The frame 130 moves up and down in the vertical direction Z.

As shown in FIGS. 1 and 2 , in the illustrated embodiment, the electric drive device 20 includes a servo motor and a motor control device (not shown) that automatically controls the servo motor, so that the movement of the movable frame 130 can be automatically adjusted altitude position.

As shown in FIGS. 1 and 2 , in the illustrated embodiment, the linear actuator 10 includes an electric cylinder, and a pressure plate 150 is connected to the end of the drive shaft 11 of the electric cylinder.

As shown in FIG. 1 and FIG. 2 , in the illustrated embodiment, the elevator car side wall jacking force testing device further includes: a force sensor (not shown) and a jacking force controller (not shown). The force sensor is installed on the linear actuator 10 to detect the pushing force exerted by the linear actuator 10 on the pressing plate 150 . The pushing force controller automatically controls the linear actuator 10 according to the pushing force detected by the force sensor until the pushing force exerted by the linear actuator 10 on the pressing plate 150 is equal to the predetermined pushing force F.

As shown in FIG. 1 and FIG. 2 , in the illustrated embodiment, the elevator car side wall pushing force testing device further includes an air extraction device 103 , which is installed on the support frames 110 , 120 and 130 , and It is in gas communication with the vacuum suction cup 101, and is used to evacuate the interior of the vacuum suction cup 101, so that the vacuum suction cup 101 is adsorbed on the bottom wall 1 of the car.

As shown in FIG. 1 and FIG. 2 , in the illustrated embodiment, the elevator car side wall test device further includes a fixing seat 102 , the fixing seat 102 is fixed on the support frames 110 , 120 , 130 , and the vacuum suction cup 101 fixed to the fixing base 102 . A ventilation air passage is formed in the fixing base 102 to connect the vacuum suction cup 101 to the air suction device 103 .

As shown in FIG. 1 and FIG. 2 , in the illustrated embodiment, the elevator car side wall test device includes a plurality of vacuum suction cups 101 , and the plurality of vacuum suction cups 101 pass through the ventilation air path in the fixed seat 102 and the suction Device 103 is in gas communication.

As shown in FIG. 1 and FIG. 2 , in the illustrated embodiment, the elevator car side wall pushing force testing device further includes a plurality of rollers 111 , and the plurality of rollers 111 are installed on the bottoms of the support frames 110 , 120 and 130 , This enables the elevator car side wall top force testing device to move through the rollers 111 .

As shown in FIGS. 1 and 2 , in the illustrated embodiment, the surface area of the pressing plate 150 in contact with the side wall 2 of the car is equal to 100 square centimeters, and the predetermined pushing force F is equal to 1000 Newtons.

As shown in FIGS. 1 and 2 , in the illustrated embodiment, the linear actuator 10 may include a servo electric cylinder, so that a jacking force of 1000 Newtons can be exerted on the side wall of the car by controlling the servo electric cylinder.

As shown in FIGS. 1 and 2 , in the illustrated embodiment, the suction force generated by each vacuum suction cup 101 includes a vertical suction force perpendicular to the surface of the car bottom wall 1 and a surface parallel to the car bottom wall 1 horizontal adsorption force. In the present invention, in order to be able to be reliably adsorbed on the bottom wall of the car and prevent the lift test device from moving the side wall of the elevator car, the vertical adsorption force of each vacuum suction cup 101 is within the range of 3000-4000N, and each vacuum The horizontal suction force of the suction cup 101 is in the range of 1500-2000N.

As shown in FIG. 1 and FIG. 2 , in the illustrated embodiment, the support frames 110 , 120 and 130 are aluminum profile frames. In this way, the weight of the elevator car side wall jacking force testing device can be greatly reduced.

Those skilled in the art can understand that the above-described embodiments are all exemplary, and those skilled in the art can make improvements thereto, and the structures described in the various embodiments do not conflict in terms of structures or principles can be freely combined.

Although the present invention has been described with reference to the accompanying drawings, the embodiments disclosed in the accompanying drawings are intended to illustrate the preferred embodiments of the present invention and should not be construed as a limitation of the present invention.

Although some embodiments of the present general inventive concept have been shown and described, those of ordinary skill in the art will understand that The scope is defined by the claims and their equivalents.

It should be noted that the word "comprising" does not exclude other elements or steps, and the word "a" or "an" does not exclude a plurality. Furthermore, any element numbers in the claims should not be construed as limiting the scope of the invention.

Claims

A device for testing the top force of a side wall of an elevator car, characterized in that it includes:

Support frames (110, 120, 130);

a linear actuator (10) mounted on the support frame (110, 120, 130);

a platen (150) connected to the linear actuator (10); and

a vacuum suction cup (101) fixed to the bottom of the support frame (110, 120, 130),

The linear actuator (10) is used for pushing the pressing plate (150) on the car side wall (2) of the elevator, so as to exert a predetermined pushing force (F) on the car side wall (2) ),

The vacuum suction cups (101) are used to be adsorbed on the bottom wall (1) of the elevator car, so as to ensure that the support frames (110, 120, 130) remain stationary when the pressing plate (150) is pushed up.
The elevator car side wall top force testing device according to claim 1, is characterized in that:

The support frame (110, 120, 130) includes:

a base frame (110) to which the vacuum suction cups (101) are fixed;

a main body frame (120) fixed to the base frame (110); and

a movable frame (130) movably mounted on the main body frame (120),

The linear actuator (10) is mounted on the movable frame (130), and can be along with the movable frame (130) along a vertical direction (Z) perpendicular to the bottom wall of the car (1). )move.
The elevator car side wall top force testing device according to claim 2, is characterized in that:

The elevator car side wall top force testing device further comprises a rotating arm (140), and the rotating arm (140) is rotatably mounted on the movable frame (130);

The linear actuator (10) is mounted on the rotating arm (140), and can rotate together with the rotating arm (140) around a horizontal axis (R) parallel to the car bottom wall (1).
The elevator car side wall top force testing device according to claim 3, is characterized in that:

The elevator car side wall top force testing device further comprises a mounting seat (132), and the mounting seat (132) is mounted on the movable frame (130);

One end of the rotating arm (140) is rotatably mounted on the mounting seat (132), and the linear actuator (10) is mounted on the other end of the rotating arm (140).
The elevator car side wall top force testing device according to claim 2, is characterized in that:

A slide rail (121) extending in the vertical direction (Z) is mounted on the main frame (120), and a slider (131) is mounted on the movable frame (130), and the slider (131) slidingly cooperates with the sliding rail (121) to guide the movable frame (130) to slide up and down along the sliding rail (121).
The elevator car side wall top force testing device according to claim 2, is characterized in that:

The elevator car side wall top force testing device further comprises an electric drive device (20) mounted on the main frame (120), and the electric drive device (20) is used to drive the movable frame (130) Move up and down along the vertical direction (Z).
The elevator car side wall top force testing device according to claim 6, is characterized in that:

The electric drive device (20) includes a servo motor and a motor control device that automatically controls the servo motor, so that the height position of the movable frame (130) can be automatically adjusted.
The elevator car side wall top force testing device according to claim 1, is characterized in that:

The linear actuator (10) comprises an electric cylinder, and the pressing plate (150) is connected to the end of the drive shaft (11) of the electric cylinder.
The elevator car side wall top force test device according to claim 1, wherein the elevator car side wall top force test device further comprises:

a force sensor, mounted on the linear actuator (10), for detecting the top force exerted by the linear actuator (10) on the pressing plate (150); and

A jacking force controller, which automatically controls the linear actuator (10) according to the jacking force detected by the force sensor until the jacking force exerted by the linear actuator (10) on the pressing plate (150) is equal to the predetermined jacking force (F).
The elevator car side wall top force testing device according to claim 1, is characterized in that:

The elevator car side wall top force testing device further comprises an air extraction device (103), the air extraction device (103) is mounted on the support frames (110, 120, 130), and is connected with the vacuum suction cups (103). 101) Air communication is used to evacuate the inside of the vacuum suction cup (101), so that the vacuum suction cup (101) is adsorbed on the bottom wall (1) of the car.
The elevator car side wall top force testing device according to claim 10, is characterized in that:

The elevator car side wall top force testing device further comprises a fixing seat (102), the fixing seat (102) is fixed on the supporting frames (110, 120, 130), and the vacuum suction cup (101) is fixed onto the fixed seat (102);

A ventilation air passage for connecting the vacuum suction cup (101) to the air suction device (103) is formed in the fixing seat (102).
The elevator car side wall top force testing device according to claim 11, wherein:

The elevator car side wall top force testing device includes a plurality of vacuum suction cups (101), and the plurality of vacuum suction cups (101) are connected to the air suction device (103) through a ventilation air passage in the fixed seat (102). ) gas connection.
The elevator car side wall top force testing device according to claim 1, is characterized in that:

The elevator car side wall top force testing device further includes a plurality of rollers (111), and the plurality of rollers (111) are installed on the bottom of the support frames (110, 120, 130), so that the elevator car The lift test device for the side wall of the box can be moved by the roller (111).
The elevator car side wall top force testing device according to claim 1, is characterized in that:

The surface area of the pressing plate (150) in contact with the car side wall (2) is equal to 100 square centimeters, and the predetermined jacking force (F) is equal to 1000 Newtons.
The elevator car side wall top force testing device according to claim 1, is characterized in that:

The linear actuator (10) includes a servo electric cylinder, which can exert a jacking force of 1000 Newtons on the side wall (2) of the car by controlling the servo electric cylinder.
The elevator car side wall top force testing device according to claim 1, is characterized in that:

The suction force generated by each vacuum suction cup (101) includes a vertical suction force perpendicular to the surface of the car bottom wall (1) and a horizontal suction force parallel to the surface of the car bottom wall (1);

The vertical suction force of each vacuum suction cup (101) is within the range of 3000-4000N, and the horizontal suction force of each vacuum suction cup (101) is within the range of 1500-2000N.
The device for testing the jacking force of the side wall of an elevator car according to claim 1, wherein the support frame (110, 120, 130) is an aluminum profile frame.