Mechanical guide rail perpendicularity measuring instrument

Abstract

The application provides a mechanical guide rail verticality measuring instrument, which is characterized in that a permanent magnet is fixed on one side of a magnetic base, a horizontal plate extends transversely on the other side, a level is fixed on the top surface of the magnetic base; a ladder shaft is pivotally arranged on the horizontal plate, a copper sector is fixed on the ladder shaft, the lower part of the copper sector has a yoke extending outward; a T-shaped slide rod is slidably arranged on the horizontal plate; the yoke of the copper sector is inserted into a vertical slot of the slide rod; the slide rod has a transverse slot; a transverse scale is arranged on the slide rod corresponding to the slot of the slide rod, and a scale area indicating the plumbness of the elevator guide rail is arranged on the scale; the copper sector and the T-shaped slide rod are arranged on the two sides of the horizontal plate, the ladder shaft passes through the horizontal plate, the end of the ladder shaft passing through the slot of the slide rod is fixed with a pointer, and the pointer points to the scale area of the scale. The application has high measuring precision and low cost.

Description

Mechanical guide rail verticality measuring instrument Technical Field

[0001] This invention belongs to the field of elevator maintenance technology, and specifically relates to a mechanical guide rail verticality measuring instrument. Background Technology

[0002] As an important component of the elevator guidance system, the performance of elevator guide rails directly affects the safe and stable operation of the elevator. Due to substandard installation processes and guide rail settlement during elevator use, the verticality of the guide rails may exceed the standard. When the car moves up and down along the guide rails, it is easy to generate vibration and noise, which affects the smooth operation of the car. This is also a common elevator problem that receives many complaints.

[0003] I. Existing national elevator standards and safety technical specifications regarding guide rail verticality requirements

[0004] 1. National Standard (GB / T10060—2011 Elevator Installation and Acceptance Specification)

[0005] 5.2.5.5 The deviation of the working surface (including the side and top surfaces) of each guide rail relative to the installation datum line within a length of 5m shall not exceed the following values:

[0006] a) The car guide rails and the counterweight guide rails equipped with safety clamps are 0.6mm thick;

[0007] b) The T-type counterweight guide rail without a safety clamp is 1.0mm thick.

[0008] For elevators with vertical guide rails, when inspecting the guide rails after the elevator is installed, continuous testing can be performed on sections of 5m length relative to the vertical line (at least 3 times). The maximum relative deviation between the measured values ​​should be taken, and its value should not be greater than twice the value specified above.

[0009] 2. Safety Technical Specifications (TSG T7001—2009 Rules for Supervision and Periodic Inspection of Elevators, Appendix A: Contents, Requirements and Methods for Supervision and Periodic Inspection of Traction and Forced Elevators, Item 3.6)

[0010] (3) The relative maximum deviation between the vertical measurements of each 5m working surface of each guide rail shall not exceed 1.2 mm for the car guide rail and the T-type counterweight guide rail with safety clamp, and not exceed 2.0 mm for the T-type counterweight guide rail without safety clamp.

[0011] (4) The distance deviation between the top surfaces of the two guide rails is 0~+2 mm for the car guide rail and 0~+3 mm for the counterweight guide rail.

[0012] II. Existing methods for measuring the verticality of elevator guide rails

[0013] 1. Conventional methods

[0014] When inspecting or repairing, a magnetic plumb bob is used in conjunction with a steel ruler for measurement. Under normal circumstances, it takes about 40 seconds for the magnetic plumb bob to come to a complete stop after it is attracted to the guide rail. The accuracy of a commonly used steel ruler is 0.5mm. In addition, human error during measurement results in low efficiency and poor accuracy.

[0015] 2. Some new technical methods

[0016] To address the issues of low efficiency and poor accuracy in conventional elevator guide rail measurement methods, many measuring tools have been invented, such as laser plumb bobs, industrial robot measurement, and semiconductor imaging technology for measuring guide rail verticality. However, due to the high cost of these instruments and the high technical requirements for users, they have not been widely adopted or applied. Summary of the Invention

[0017] This invention provides a mechanical guide rail perpendicularity measuring instrument, the purpose of which is to overcome the shortcomings of existing technologies and provide a mechanical guide rail perpendicularity measuring instrument with high measurement accuracy and low cost.

[0018] The solution to the technical problem of this invention lies in:

[0019] The mechanical guide rail perpendicularity measuring instrument is characterized by:

[0020] A permanent magnet is fixed on one side of the magnetic base, and a horizontal plate extends laterally on the other side. A level is fixed on the top surface of the magnetic base.

[0021] A trapezoidal shaft is pivotally mounted on the horizontal plate, and a copper fan-shaped body is fixed on the trapezoidal shaft. The lower part of the copper fan-shaped body has an outwardly extending yoke.

[0022] The T-shaped slide bar has a horizontal slide bar and a vertical slide bar that are perpendicular to each other. The horizontal slide bar can be slidably mounted on the horizontal plate.

[0023] The slide bar has a vertical slide bar groove, and a copper fan-shaped yoke is inserted into the slide bar groove;

[0024] The slide bar has a transverse slide bar groove;

[0025] A horizontal scale is installed on the slide bar corresponding to the position of the slide bar groove. The scale has a scale area to indicate the plumbness of the elevator guide rail.

[0026] The copper fan-shaped body and T-shaped slide bar are located on both sides of the horizontal plate. The trapezoidal shaft passes through the horizontal plate and through the slide bar groove. A pointer is fixed at the end of the trapezoidal shaft through the slide bar groove 93, and the pointer points to the scale area of ​​the scale.

[0027] The yoke is a column that extends outward perpendicular to the copper fan-shaped body.

[0028] The horizontal plate is equipped with a left slide bar seat and a right slide bar seat, both of which have through holes; the two sides of the slide bar crossbar are respectively inserted into the through holes of the left slide bar seat and the right slide bar seat.

[0029] After passing through the adjustment groove of the scale, the fixing knob is screwed into the screw hole of the slide bar. The knob head of the fixing knob fixes the scale on the water fixing knob.

[0030] The beneficial effects of this invention are:

[0031] 1. This invention has a simple structure, does not require various electronic instruments, and has low cost.

[0032] 2. This invention utilizes a copper fan-shaped body to maintain verticality and generate a vertical reference, driving the slide bar and scale, causing the pointer and scale to shift and directly reflect the verticality of the elevator guide rail, resulting in high measurement accuracy. Attached Figure Description

[0033] Figure 1 is a front structural diagram of the present invention;

[0034] Figure 2 is a side view of the present invention;

[0035] Figure 3 is a schematic diagram of the rear structure of the present invention.

[0036] Numbering on the map:

[0037] 1: Magnetic base; 2: Level; 3: Copper sector; 4: Level plate; 5: Scale; 6: Fixed knob; 7: Left slide bar seat; 8: Right slide bar seat; 9: T-shaped slide bar; 90: Slide bar vertical groove; 91: Slide bar horizontal bar; 92: Slide bar vertical bar; 93: Slide bar horizontal groove; 10: Pointer; 11: Trapezoidal shaft; 12: Yoke; 13: Permanent magnet; 14: Bearing. Detailed Implementation

[0038] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0039] To more clearly illustrate the technical solution of the present invention, the accompanying drawings used in the description will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other embodiments can be obtained based on these drawings without creative effort. To facilitate understanding of the present invention, the present invention will be described in more detail below with reference to the accompanying drawings and specific embodiments.

[0040] As shown in Figures 1, 2, and 3:

[0041] Two permanent magnets 13 are fixed on one side of the magnetic base 1, and a horizontal ruler 2 is fixed on the top surface of the magnetic base 1.

[0042] The magnetic base 1 extends laterally out of the horizontal plate 4 on the other side relative to the permanent magnet 13.

[0043] A trapezoidal shaft 11 is pivotally mounted on the horizontal plate 4 via a bearing 14. A copper fan-shaped body 3 is fixed on the trapezoidal shaft 11. The copper fan-shaped body 3 is a fan-shaped plate, thus pivotally mounted on the horizontal plate 4. Because it is fan-shaped, its tip naturally points upward and its curved edge naturally points downward due to gravity. The lower part of the copper fan-shaped body 3 has a columnar body extending outward perpendicular to the copper fan-shaped body 3 as a yoke 12.

[0044] The horizontal plate 4 also has a left slide bar seat 7 and a right slide bar seat 8, both of which have through holes.

[0045] The T-shaped slide bar 9 has a horizontal slide bar 91 and a vertical slide bar 92 that are perpendicular to each other. The two sides of the horizontal slide bar 91 are inserted into the through holes of the left slide bar seat 7 and the right slide bar seat 8, respectively. In this way, the horizontal slide bar 91 is supported by the left slide bar seat 7 and the right slide bar seat 8 and can slide left and right.

[0046] The slide bar 92 has a vertical slide bar groove 90, and the yoke 12 of the copper fan-shaped body 3 is inserted into the slide bar groove 90.

[0047] The slide bar 91 has a transverse slide bar groove 93.

[0048] The slide bar 91 has a horizontal scale 5 with a graduated area. The graduations in the scale area are designed according to the measuring instrument size to directly represent the plumbness of the elevator guide rail. A fixing knob 6 fixes the scale 5 onto the slide bar 91. Specifically, the fixing knob 6 passes through the adjustment groove of the scale 5 and is screwed into the screw hole of the slide bar 91. In this way, when the fixing knob 6 is tightened, the knob head of the fixing knob 6 can fix the scale 5 onto the fixing knob 6. When the fixing knob 6 is loosened, the scale 5 can move left and right. The fixing knob 6 passes through the adjustment groove so it will not interfere with the movement of the scale 5. When the scale 5 moves into place, the fixing knob 6 is tightened again to fix the scale 5.

[0049] The position of scale 5 corresponds to the slide groove 93 of the slide bar.

[0050] The copper fan-shaped body 3 and the T-shaped slide bar 9 are located on both sides of the horizontal plate 4. The trapezoidal shaft 11 passes through the horizontal plate 4 and passes through the slide bar groove 93. A pointer 10 is fixed at the end of the trapezoidal shaft 11 that passes through the slide bar groove 93. The pointer 10 points to the scale area of ​​the scale 5.

[0051] When using this invention:

[0052] Attach the permanent magnet 13 to the car guide rail to keep the level ruler 2 horizontal. Loosen the fixing knob 6, adjust the position of the scale 5 so that the pointer 10 is aligned with the zero mark of the scale 5, and then tighten the fixing knob 6. At this time, the position of the scale 5 is used as the reference. Then move the measuring instrument up and down.

[0053] When the guide rail is offset to the right, the copper fan-shaped body 3 is also offset to the right under the action of gravity. The yoke 12 drives the T-shaped slide bar 9, and the yoke 12 can move up and down in the slide bar groove 90. At the same time, the yoke 12 drives the slide bar vertical bar 92 to move to the right, which also drives the T-shaped slide bar 9 to move to the right.

[0054] Since the pointer 10 is on the ladder shaft 11, and the ladder shaft 11 passes through the slide rail groove 93, the ladder shaft 11 can move in the slide rail groove 93, so it will not interfere with the T-shaped slide rail 9. Therefore, the pointer 10 and the T-shaped slide rail 9 will have relative displacement, that is, the pointer 10 and the scale 5 fixed on the T-shaped slide rail 9 will have relative displacement. At this time, the scale 5 pointed to by the pointer 10 is the verticality of the elevator guide rail.

[0055] Similarly, when the guide rail is offset to the left, the copper fan-shaped body 3 is also offset to the left under the action of gravity. Through the yoke 12, it drives the T-shaped slide bar 9 to move to the left. At this time, the pointer 10 points to the scale 5, which is the verticality of the elevator guide rail.

[0056] The scale of ruler 5 is set as follows: the zero mark is in the middle, and the scale extends to the left and right, with each mark being 0.2mm.

[0057] For example, the standard requires that the maximum relative deviation between the vertical measurements of the working surface of each guide rail every 5m should not exceed 1.2mm.

[0058] To measure the perpendicularity of the guide rail, the measuring personnel only need to observe the change of the pointer on scale 5. As long as the relative change of the scale is no more than 6 divisions, it is considered qualified.

[0059] The various embodiments described in this specification are presented in a progressive manner, with each embodiment focusing on its differences from other embodiments. Similar or identical parts between embodiments can be referred to interchangeably. The above description of the disclosed embodiments enables those skilled in the art to make or use the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A mechanical guide rail perpendicularity measuring instrument, characterized in that: A permanent magnet (13) is fixed on one side of the magnetic base (1), and a horizontal plate (4) extends laterally on the other side. A level (2) is fixed on the top surface of the magnetic base (1). A trapezoidal shaft (11) is pivotally mounted on the horizontal plate (4), and a copper fan-shaped body (3) is fixed on the trapezoidal shaft (11). The lower part of the copper fan-shaped body (3) has an outwardly extending yoke (12). The T-shaped slide bar (9) has mutually perpendicular slide bar horizontal bars (91) and slide bar vertical bars (92). The slide bar horizontal bars (91) can be slidably mounted on the horizontal plate (4). The slide bar vertical bars (92) have vertical slide bar vertical bar grooves (90), into which the yoke (12) of the copper fan-shaped body (3) is inserted. In the vertical slide rail groove (90); the horizontal slide rail (91) has a horizontal slide rail groove (93); a horizontal scale (5) is installed on the horizontal slide rail (91) corresponding to the position of the horizontal slide rail groove (93), and the scale (5) is provided with a scale area indicating the plumbness of the elevator guide rail; the copper fan-shaped body (3) and the T-shaped slide rail (9) are located on both sides of the horizontal plate (4), the ladder shaft (11) passes through the horizontal plate (4), and the ladder shaft (11) passes through the horizontal slide rail groove (93), and a pointer (10) is fixed at the end of the ladder shaft (11) passing through the horizontal slide rail groove (93), and the pointer (10) points to the scale area of ​​the scale (5).

2. The mechanical guide rail perpendicularity measuring instrument as described in claim 1, characterized in that: The yoke (12) is a column that extends outward perpendicular to the copper fan-shaped body (3).

3. The mechanical guide rail perpendicularity measuring instrument as described in claim 1, characterized in that: A left slide bar seat (7) and a right slide bar seat (8) are installed on the horizontal plate (4). Both the left slide bar seat (7) and the right slide bar seat (8) have through holes. The two sides of the slide bar crossbar (91) are inserted into the through holes of the left slide bar seat (7) and the right slide bar seat (8) respectively.

4. The mechanical guide rail perpendicularity measuring instrument as described in claim 1, characterized in that: After passing through the adjustment groove of the scale (5), the fixed knob (6) is screwed into the screw hole of the slide bar (91), and the knob head of the fixed knob (6) presses the scale (5) onto the fixed knob (6).

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