CN114537547A - Elevator guide rail straightness and depth of parallelism automated inspection mechanism adsorb clamping device - Google Patents

Abstract

The invention provides an adsorption and clamping device for an automatic detection mechanism for the verticality and parallelism of an elevator guide rail. The top magnetic wheels are installed at the upper and lower ends of the car body and roll against the top surface of the guide rails by means of magnetic force. The clamping wheels are installed in the middle section of the car body. Universal ball guide wheels are installed on the upper and lower ends of the car body. By adjusting the expected bolts, the spacing of the clamping wheels can be adjusted, which can adapt to different sizes of guide rails, and can provide enough friction to prevent slipping. The universal ball guide wheels are located at both ends of the car body. When the verticality of the guide rail changes, it can be adjusted automatically under the action of the magnetic force of the magnetic wheel, so that the top magnetic wheel can always be attached to the top surface of the guide rail without deviation. The invention provides an adsorption and clamping device for an automatic detection mechanism for the verticality and parallelism of an elevator guide rail. Through the adsorption and clamping device, the automatic detection mechanism can run safely and stably on the vertical guide rail without slipping or leaving the guide rail plane. Realize automatic detection of rail parallelism and perpendicularity.

Description

Adsorption and clamping device for automatic detection mechanism of verticality and parallelism of elevator guide rails

technical field

The invention relates to the technical field of elevator guide rail detection, in particular to an adsorption and clamping device of an elevator guide rail verticality and parallelism detection mechanism.

Background technique

The elevator guide rail is the guiding component of the elevator car. The installation quality of the elevator guide rail directly affects the safe and stable operation of the elevator. The working surface of the elevator guide rail is divided into the top surface and the side surface, and the verticality is divided into the top surface verticality and the side surface. Verticality. The verticality and side parallelism of the guide rail are the key indicators of the installation quality of the guide rail, which directly affect the comfort and safety of the elevator operation. But the detection of the verticality and parallelism of the elevator guide rail is always a difficult problem. The traditional detection method relies on manual measurement of the elevator guide rail and manual reading of the measurement results, which has a large detection error. The detection process is very dependent on the scaffolding or the elevator car, and the detection process is very long.

The traditional detection method is to use a steel ruler to measure the distance deviation between the plumb line and the surface of the elevator guide rail to obtain the verticality deviation of the guide rail. The hanging plumb line is actually a pendulum. The longer the length of the plumb line, the more stable it is. The longer the time is, the length of the vertical line of the hanging should not be too long, but the length of the elevator guide rail is usually tens of hundreds of meters, so using this method to detect the verticality of the elevator guide rail needs to place the vertical line several times in sections. This results in a different reference position for each measurement, which introduces measurement bias.

With the popularization of laser technology, the method of measuring the verticality of the guide rail with the laser collimator and the digital display target has gradually become popular. First, fix the laser collimator on the guide rail, adjust the knob to make the laser collimator emit vertical laser, the inspector stands on the top of the elevator car, install the digital display target in each detection position in turn, and adjust the center of the digital display target. To coincide with the laser center, the deviation information of the detection point can be obtained, and the digital display target can read the verticality deviation information of the top surface and the side surface at the same time. The plumb laser range of the laser collimator can reach 100 meters. During the measurement process, the inspection can be completed without repeatedly disassembling the collimator. However, the digital display target still needs to be repeatedly disassembled and installed between each measurement point, which takes a long time to measure, and The center position of the digital display target needs to be adjusted manually, and the human eye observes whether the center of the target coincides with the center of the laser spot. Observing the laser spot for a long time will cause harm to the eyes, resulting in a deviation in the judgment of the center position of the spot, resulting in a deviation in the measurement results of the verticality of the guide rail.

Both methods cannot avoid manual participation. During the measurement process, the staff needs to measure point by point in the elevator shaft. The whole measurement process is time-consuming and laborious, and it relies on the elevator car or scaffolding. The detection data needs to be judged and read by the human eye. There is a large human error, and there is a large security risk.

SUMMARY OF THE INVENTION

In order to solve the existing technical problems in the detection of elevator guide rails, the present invention provides a clamping and adsorption device for an automatic detection mechanism of elevator guide rails, so that the automatic detection mechanism can closely adhere to the working surface of the guide rails, complete the automatic detection task, and improve the detection speed and detection accuracy. .

To achieve the above object, the present invention adopts the following technical solutions:

An adsorption and clamping device for an automatic detection mechanism for verticality and parallelism of an elevator guide rail, comprising: a top magnetic wheel, a universal ball guide wheel, a clamping wheel, a clamping wheel slider, a universal ball guide wheel slider, and a car body;

The top magnetic wheel is installed at the upper and lower ends of the car body, rolls against the top surface of the guide rail by magnetic force, and is connected with the body of the automatic detection car through the shaft;

The clamping wheel is divided into a fixed clamping wheel and a sliding clamping wheel, which are installed in the middle of the vehicle body. The fixed clamping wheel is connected to the vehicle body through a shaft. Detect the movement of the chute of the trolley body;

The universal ball guide wheel is divided into a fixed side universal ball guide wheel and a clamping side universal ball guide wheel, which are installed at both ends of the vehicle body, and the fixed side universal ball guide wheel is fixed on the vehicle by a universal ball guide slider. In the groove on the left side of the car body, the universal ball guide wheel on the clamping side moves in the chute on the right side of the car body under the action of the pre-tightening bolt using the guiding structure.

In a preferred embodiment, the vehicle body is provided with three guide grooves at intervals along the height direction.

In a preferred embodiment, the top magnetic wheel is fixed on the upper and lower ends of the vehicle body through the magnetic wheel shaft, and is adsorbed on the top surface of the guide rail.

In a preferred embodiment: the universal ball guide wheel is connected with the universal ball guide wheel slider, and is installed on the upper and lower sides of the vehicle body by means of the guide rail of the universal ball guide wheel slider and the guide grooves at the upper and lower ends of the vehicle body. end.

In a preferred embodiment: the universal ball guide wheel and the universal ball guide wheel slider are divided into two groups along the width direction of the vehicle body, and the universal ball guide wheel and the universal ball guide wheel in one group are divided into two groups. The slider is fixedly connected, and the universal ball guide wheel in the other group is slidably connected with the slider of the universal ball guide wheel along the extending direction of the guide groove.

In a preferred embodiment: the clamping wheel is fixed on the left side of the vehicle body by means of a power shaft, located in the middle of the vehicle body, and the clamping wheel and the clamping wheel slider are connected through the clamping wheel axle; the clamping wheel slides The guide rail of the block is slidably installed in the guide groove in the middle of the vehicle body.

In a preferred embodiment: the pre-tightening bolt is installed on the right side of the vehicle body, facing the universal ball guide wheel slider and the clamping wheel slider, and the universal ball guide wheel slider is rotated by rotating the pre-tightening bolt. Apply pre-tightening force to the clamping wheel slider to adjust the clamping distance.

In a preferred embodiment: the top magnetic wheel includes a permanent magnet and a steel sheet; the steel sheet wraps the permanent magnet.

In a preferred embodiment: when the verticality of the guide rail just changes, the top magnetic wheel is separated from the surface of the guide rail, and the clamping wheel provides resistance f for the detection mechanism, and under the action of the magnetic force F ₁ and the resistance f, at another top magnetic wheel A torque M=(F ₁ ·L ₂ )-(f·L ₁ ) is generated, and the automatic detection mechanism is deflected under the action of the torque M, so that the automatic detection mechanism can stick to the top surface of the guide rail.

Compared with the prior art, the present invention has the following beneficial effects:

(1) The clamping wheel and the universal ball guide wheel are divided into a fixed side and a clamping side. The fixed side is fixed on the automatic detection mechanism, and the clamping side can slide in the automatic detection mechanism through the slider guide rail. , can adapt to different sizes and different widths of guide rails.

(2) The universal ball guide wheel is installed at both ends of the car body, and there is a certain distance from the clamping wheel. When the perpendicularity of the surface of the guide rail changes (such as bending, step), the magnetic force of the magnetic wheel generates a moment at the top magnetic wheel, The detection mechanism can be adjusted automatically, so that the magnetic wheel can always be attached to the top surface of the guide rail.

(3) Use bolts to apply pre-tightening force to the slider of the clamping wheel, so that the clamping wheel can be tightly attached to the side working surface of the guide rail, providing enough friction to prevent slipping. Faced with the surface of the guide rail in different situations, it is only necessary to adjust the pre-tightening bolts to apply sufficient friction. At the same time, adjusting the appropriate pre-tightening force can ensure neither slippage nor excessive pre-tightening force. The guide rail or the automatic detection mechanism is deformed.

Compared with the prior art, the present invention provides an elevator guide rail verticality and parallelism automatic detection mechanism adsorption and clamping device, the magnetic wheel adsorption mechanism and the universal ball guide mechanism are pre-tightened by bolts, and the magnetic force is used to automatically adjust the detection mechanism, The automatic detection mechanism can always be closely attached to the guide rail to run safely and stably vertically. The slider mechanism with adjustable spacing can make the automatic detection mechanism run on the surface of different types of guide rails, realize the automation of elevator guide rail detection, and greatly improve the detection rate. and detection accuracy.

Description of drawings

FIG. 1 is a schematic structural diagram of the first embodiment of the adsorption and clamping device of the automatic detection mechanism for the verticality and parallelism of the elevator guide rail.

Figure 2 is a schematic structural diagram of the second embodiment of the adsorption and clamping device of the automatic detection mechanism for the verticality and parallelism of the elevator guide rail.

Fig. 3 is a schematic structural diagram of the adsorption and clamping device of the automatic detection mechanism for the verticality and parallelism of the elevator guide rail during normal operation.

Figure 4 is a schematic diagram of the automatic adjustment of the adsorption and clamping device of the automatic detection mechanism for the verticality and parallelism of the elevator guide rail when the verticality of the guide rail changes.

Figure 5 is a schematic diagram of the automatic result of the automatic detection mechanism of the verticality and parallelism of the elevator guide rail after the verticality of the guide rail changes.

In the picture: 1- Top magnetic wheel, 2- Magnetic wheel shaft, 3- Universal ball guide wheel, 4- Universal ball guide wheel slider, 5- Clamping wheel, 6- Clamping wheel slider, 7- Power shaft , 8-clamping axle, 9-preloading bolt, 10-car body, 11-slider guide rail, 12-car body guide groove, 13-permanent magnet, 14-steel sheet, 15-magnetic wheel seat.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention; obviously, the described embodiments are only a part of the embodiments of the present invention, not all of the embodiments. The embodiments of the present invention, and all other embodiments obtained by those of ordinary skill in the art without creative work, fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that the orientations or positional relationships indicated by the terms "upper", "lower", "inner", "outer", "top/bottom", etc. are based on the orientations shown in the accompanying drawings Or the positional relationship is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed to indicate or imply relative importance.

In the description of the present invention, it should be noted that, unless otherwise expressly specified and limited, the terms "installation", "provided with", "sleeve/connection", "connection", etc., should be understood in a broad sense, such as " "connection", which can be a wall-mounted connection, a detachable connection, or an integral connection, a mechanical connection, an electrical connection, a direct connection, or an indirect connection through an intermediate medium, or an internal connection between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood in specific situations.

1-5, this embodiment provides an elevator guide rail verticality and parallelism automatic detection mechanism adsorption and clamping device, including: top magnetic wheel 1, universal ball guide wheel 3, clamping wheel 5, clamping Wheel slider 6, universal ball guide wheel slider 4, car body 10;

The top magnetic wheel 1 is installed on the upper and lower ends of the car body 10, and rolls against the top surface of the guide rail by magnetic force, and is connected to the body 10 of the automatic detection trolley through the shaft; the clamping wheel 5 is divided into a fixed clamping wheel and a sliding clamp. The clamping wheel is installed in the middle section of the car body 10, the fixed clamping wheel is connected to the car body 10 through the shaft, and the sliding clamping wheel moves along the chute 12 that automatically detects the body of the trolley under the action of the preload bolt 9 by the sliding block; The universal ball guide wheel 3 is divided into a fixed-side universal ball guide wheel and a clamping-side universal ball guide wheel, which are installed at both ends of the vehicle body 10, and the fixed-side universal ball guide wheel is fixed on the universal ball guide slider. In the groove on the left side of the vehicle body 10 , the clamping-side universal ball guide wheel 3 moves in the chute 12 on the right side of the vehicle body 10 under the action of the preload bolt 9 using the guide structure.

In order to realize the above structure, in this embodiment, the vehicle body 10 is provided with three guide grooves 12 at intervals along the height direction. The top magnetic wheel 1 is fixed on the upper and lower ends of the vehicle body 10 through the magnetic wheel shaft 2, and is adsorbed on the top surface of the guide rail. The universal ball guide wheel 3 is connected with the universal ball guide wheel slider 4, and is installed on the upper and lower ends of the vehicle body 10 by means of the guide rail 11 of the universal ball guide wheel slider 4 and the guide grooves 12 at the upper and lower ends of the vehicle body 10. .

The universal ball guide wheel 3 and the universal ball guide wheel slider 4 are divided into two groups along the width direction of the vehicle body 10, wherein the universal ball guide wheel 3 and the universal ball guide wheel slider 4 in one group are: In a fixed connection, the universal ball guide wheel 3 and the universal ball guide wheel slider 4 in the other group are slidably connected along the extending direction of the guide groove 12 .

The clamping wheel 5 is fixed on the left side of the vehicle body 10 by means of the power shaft 7, located in the middle of the vehicle body 10, and the clamping wheel 5 is connected with the clamping wheel slider 6 through the clamping wheel shaft 8; the clamping wheel slider The guide rail 6 is slidably installed in the guide groove 11 in the middle of the vehicle body 10 .

The preload bolt 9 is installed on the right side of the vehicle body 10, facing the universal ball guide wheel slider 4 and the clamping wheel slider 6. By rotating the preload bolt 9, the universal ball guide wheel slider 4 and the clamp wheel are connected. The tensioner slider 6 applies a preload to adjust the clamping distance.

In addition, the top magnet wheel 1 includes a permanent magnet 13 and a steel sheet 14 ; the steel sheet 14 wraps the permanent magnet 13 .

When in use, when the verticality of the guide rail just changes, the operating state of the automatic detection mechanism is shown in Figure 4. The top magnetic wheel 1 is separated from the surface of the guide rail, and the clamping wheel 5 provides resistance f for the detection mechanism. Under the action of the magnetic force F1 and the resistance f A torque is generated at the other top magnetic wheel 1, and the automatic detection mechanism is deflected under the action of the torque M, and the entire detection mechanism is automatically adjusted so that it can be close to the top surface of the guide rail, as shown in Figure 5.

When adjusting the pre-tightening bolt 9 to apply the pre-tightening force, the pre-tightening force required by the automatic detection mechanism can be calculated according to the friction force formula f=F _N ·μ. If the pre-tightening force is too small, the detection mechanism will not be able to clamp the guide rail, resulting in The phenomenon of slippage and excessive preload will cause the deformation of the detection mechanism, thereby affecting the detection results. Therefore, the torque to be applied to the pre-tightening bolt 9 is calculated according to the pre-tightening force formula T=k·F·d, where T is the tightening torque, k is the tightening torque coefficient, F is the required pre-tightening force, and d is the thread size Nominal diameter. Then apply the required preload with a torque wrench.

The above description is only a preferred embodiment of the present invention, but the design concept of the present invention is not limited to this. Insubstantial changes are acts that infringe the protection scope of the present invention.

Claims (9)

1. The utility model provides an elevator guide rail hangs down straightness and depth of parallelism automated inspection mechanism adsorbs clamping device which characterized in that includes: the magnetic wheel, the universal ball guide wheel, the clamping wheel slide block, the universal ball guide wheel slide block and the vehicle body are arranged on the vehicle body;

the top magnetic wheels are arranged at the upper end and the lower end of the trolley body, are tightly attached to the top surface of the guide rail by magnetic force to roll, and are connected with the trolley body of the automatic detection trolley through shafts;

the clamping wheel is divided into a fixed clamping wheel and a sliding clamping wheel, the fixed clamping wheel and the sliding clamping wheel are arranged on the middle section of the trolley body, the fixed clamping wheel is connected with the trolley body through a shaft, and the sliding clamping wheel moves along a sliding groove of the automatic detection trolley body under the action of a pre-tightening bolt by depending on a sliding block;

the universal ball guide wheel is divided into a fixed side universal ball guide wheel and a clamping side universal ball guide wheel, the fixed side universal ball guide wheel and the clamping side universal ball guide wheel are mounted at two ends of the vehicle body, the fixed side universal ball guide wheel is fixed in a groove at the left side of the vehicle body through a universal ball guide sliding block, and the clamping side universal ball guide wheel moves in a sliding groove at the right side of the vehicle body under the action of a pre-tightening bolt through a guide structure.

2. The elevator guide rail perpendicularity and parallelism automatic detection mechanism adsorption clamping device according to claim 1, characterized in that: the vehicle body 10 is provided with three guide grooves 12 at intervals in the height direction.

3. The elevator guide rail perpendicularity and parallelism automatic detection mechanism adsorption clamping device according to claim 1, characterized in that: the top magnetic wheel 1 is fixed at the upper end and the lower end of the vehicle body 10 through the magnetic wheel shaft 2 and is adsorbed on the top surface of the guide rail.

4. The elevator guide rail perpendicularity and parallelism automatic detection mechanism adsorption clamping device according to claim 1, characterized in that: the universal ball guide wheel 3 is connected with the universal ball guide wheel sliding block 4, and the guide rail 11 of the universal ball guide wheel sliding block 4 and the guide grooves 12 at the upper end and the lower end of the vehicle body 10 are arranged at the upper end and the lower end of the vehicle body 10.

5. The elevator guide rail perpendicularity and parallelism automatic detection mechanism adsorption clamping device according to claim 1, characterized in that: universal ball leading wheel 3 and universal ball leading wheel slider 4 divide into two sets ofly along the width direction of automobile body 10, and wherein universal ball leading wheel 3 and universal ball leading wheel slider 4 are fixed connection in a set of, and universal ball leading wheel 3 and universal ball leading wheel slider 4 are along the extending direction sliding connection of guide slot 12 in another set of.

6. The elevator guide rail perpendicularity and parallelism automatic detection mechanism adsorption clamping device according to claim 1, characterized in that: the clamping wheel 5 is fixed on the left side of the vehicle body 10 by virtue of a power shaft 7 and is positioned at the middle section of the vehicle body 10, and the clamping wheel 5 is connected with a clamping wheel slide block 6 through a clamping wheel shaft 8; the guide rail of the clamping wheel slide block 6 is slidably arranged in a guide groove 11 in the middle of the vehicle body 10.

7. The elevator guide rail perpendicularity and parallelism automatic detection mechanism adsorption clamping device according to claim 1, characterized in that: the pre-tightening bolt 9 is installed on the right side of the vehicle body 10 and is right opposite to the universal ball guide wheel slide block 4 and the clamping wheel slide block 6, pre-tightening force is applied to the universal ball guide wheel slide block 4 and the clamping wheel slide block 6 through rotating the pre-tightening bolt 9, and therefore the clamping distance is adjusted.

8. The elevator guide rail perpendicularity and parallelism automatic detection mechanism adsorption clamping device according to claim 1, characterized in that: the top magnetic wheel 1 comprises a permanent magnet 13 and a steel sheet 14; the steel sheet 14 wraps the permanent magnet 13.

9. The elevator guide rail perpendicularity and parallelism automatic detection mechanism adsorption clamping device according to claim 1, characterized in that: when the verticality of the guide rail is just changed, the top magnetic wheel is separated from the surface of the guide rail, the clamping wheel provides resistance F for the detection mechanism, and the magnetic force F₁And the torque M is generated at the other top magnetic wheel under the action of the resistance force F (F)₁·L₂)-(f·L₁) And the automatic detection mechanism deflects under the action of the torque M, so that the automatic detection mechanism can be tightly attached to the top surface of the guide rail.

Images