Portable chain abrasion loss tester

Abstract

The utility model discloses a portable chain abrasion loss tester, and belongs to the technical field of chains. Comprising a bolt, a fixed ruler, two movable rulers, four verniers and four connecting rods, the bolt is installed in a threaded hole of the fixed ruler, the left end and the right end of the fixed ruler are connected with the two movable rulers respectively, each movable ruler is provided with the two verniers in a sliding mode and locked through the nuts, each vernier is provided with a pin shaft hole, and the bolt is detachably hinged to the verniers through the connecting rod and the pin shaft holes. According to the utility model, the abrasion loss of the chain is measured, the chain does not need to be disassembled, the completeness of the chain is protected, chain damage or performance reduction possibly caused by disassembly is avoided, and time and cost required by disassembly and reinstallation are saved at the same time. According to the utility model, the chain can be directly measured on the machine without being detached from the machine, so that the operation process is simplified, the manual intervention is reduced, the measurement efficiency is improved, and the field staff can quickly obtain the key information of the wear state of the chain.

Description

TECHNICAL FIELD

[0001] The utility model belongs to chain technical field, concretely relates to a portable chain wear and tear tester. BACKGROUND

[0002] Chain disassembly belongs to destructive disassembly, and it is difficult to restore to the original state, so after the escalator chain wears, a severe challenge is faced: the existing measuring tools are difficult to accurately measure the internal wear and tear without disassembling the chain.

[0003] At present, the chain wear measurement has the following problems: 1. The chain structure is complex without disassembly, there is a measurement blind area, and ordinary tools are difficult to accurately measure; 2. Without disassembling the chain, there is a chain wheel outside the chain, and the chain wheel also has wear and tear, which brings disadvantages to measurement; 3. The chain wear measurement is difficult to realize large-scale disassembly of steps, and the chain is difficult to disassemble from the escalator, which brings disadvantages to measurement. 4. The chain wear and tear scrap standard is that the elongation reaches 3% of the original value, and the original measurement method needs to be calculated manually, which is tedious and not intuitive for on-site work. UTILITY MODEL CONTENTS

[0004] The utility model discloses in order to solve the problem that chain wear measurement is difficult, and further provides a portable chain wear and tear tester;

[0005] The utility model adopts the technical scheme that:

[0006] A portable chain wear and tear tester, including bolt, fixed ruler, two movable rulers, four verniers and two connecting rods, the fixed ruler is horizontally arranged and is provided with a vertical threaded hole in the middle, the bolt is installed in the threaded hole of the fixed ruler, the left and right ends of the fixed ruler are connected with two movable rulers respectively, two verniers are slidably installed on each movable ruler and locked by a nut, a pin hole is formed in each vernier, and the bolt is detachably connected with the vernier through the connecting rod and the pin hole.

[0007] Compared with the prior art, the utility model has the following beneficial effects:

[0008] 1. The utility model measures the chain wear and tear, does not need to disassemble the chain, protects the integrity of the chain, avoids the chain damage or performance decline caused by disassembly, and saves the time and cost required for disassembly and reinstallation.

[0009] 2. The utility model can overcome the adverse effects of chain wheel wear and tear, and accurately measure the chain wear and tear.

[0010] 3. The utility model discloses can not detach from the chain of machine, directly on the machine is measured, simplify the operation process, reduce manual intervention, improve the measuring efficiency, make the on -the -spot staff can obtain the key information of chain wear state quickly. BRIEF DESCRIPTION OF DRAWINGS

[0011] Figure 1 It is the structure schematic diagram of the utility model;

[0012] Figure 2 It is the factory state of chain;

[0013] Figure 3 It is the first step measurement position drawing of the utility model;

[0014] Figure 4 It is the second step measurement position drawing of the utility model;

[0015] Among them: 1, bolt, 2, fixed ruler, 3, connecting rod, 4, movable ruler, 5, nut, 6, vernier, 601, vernier one, 602, vernier two, 603, vernier three, 604, vernier four, 605, connecting part, 606, measuring claw part, 607, pin shaft joint, 7, pin shaft, 8, chain plate, 9, wheel shaft, 10, wheel, 11, bearing. DETAILED DESCRIPTION

[0016] In order to better understand the purpose, structure and function of the utility model, the utility model is described in further detail below in conjunction with the drawings.

[0017] As Figure 1 Indicated, the utility model provides a kind of portable chain wear testing instrument, including bolt 1, fixed ruler 2, two movable rulers 4, four verniers 6 and two connecting rods 3;The fixed ruler 2 is horizontally arranged and is provided with vertical threaded hole in middle part, the bolt 1 is installed in the threaded hole of fixed ruler 2, the fixed ruler 2 left and right two ends are connected with two movable rulers 4 respectively, two verniers 6 are slidably installed on each movable ruler 4 and are locked by nut 5, pin shaft hole is provided on each vernier 6, and the bolt 1 is detachably articulated with vernier 6 by connecting rod 3 and pin shaft hole.

[0018] Four the verniers 6 are respectively vernier one 601, vernier two 602, vernier three 603 and vernier four 604, the vernier one 601, vernier two 602 are slidably installed on the movable ruler 4 at left end, and the vernier three 603 and vernier four 604 are slidably installed on the movable ruler 4 at right end.

[0019] Each of the verniers 6 adopts a split structure, a connecting part 605 at the upper end and a measuring claw part 606 at the lower end, and a pin shaft joint 607 is connected between the connecting part 605 and the measuring claw part 606, and the axial direction of the pin shaft joint 607 is the length direction of the movable ruler 4. The measuring claw part 606 has a rotating function and can realize inclination adjustment, which enhances the flexibility and adaptability of the vernier 6 measurement. It can be applied to some complex measurement environment.

[0020] The fixed ruler 2 is provided with slide rails or slide channels at both ends, is slidably connected with the movable ruler 4, and is fixed through a jackscrew.

[0021] Pin shafts 7 are rotatably installed at the upper and lower ends of each of the connecting rods 3, the pin shaft 7 at the upper end of the connecting rod 3 is fixedly connected with the bolt 1, and the pin shaft 7 at the lower end of the connecting rod 3 is detachably connected with the pin shaft hole of the vernier 6.

[0022] The utility model discloses a measuring chain every chain link's axle and the wear and tear between bearing, thereby measuring the wear and tear of chain.

[0023] The chain will appear the wear and tear of the outer diameter of the pulley, the wear and tear of the bearing, the wear and tear of the axle. Figure 2 The two bearings 11 are fixed on the chain plate 8 at the time of the chain factory, the position is fixed, and the pitch will not change with the wear and tear.

[0024] Four verniers 6 of the utility model are used to measure Figure 3 The middle position. The pin shaft holes of two connecting rods 3 and vernier two 602 and vernier three 603 are hinged, the bolt 1 is downwardly rotated, vernier two 602 and vernier three 603 are outwardly applied with force, the bearing 11 of the wheel is pressed on the axle 9, vernier one 601 is manually moved to the right and vernier four 604 is manually moved to the left, and are pressed on the wheel 10, at this moment, L1, L2, L3, L4 can be measured, because the wear and tear of the outer edge of each wheel 10 is different, therefore L3 and L4 are not equal.

[0025] The position in the tool measurement Figure 4 The pin shaft holes of two connecting rods 3 and vernier one 601 and vernier four 604 are hinged, the screw is upwardly rotated, vernier one 601 and vernier four 604 are inwardly applied with force, the bearing 11 of the wheel is pressed on the axle 9, vernier two 602 is manually moved to the left and vernier three 603 is manually moved to the right, and are pressed on the wheel 10, at this moment, L1', L2' can be measured.

[0026] L1=L2-L3-L4 is calculated

[0027] L1'=L2'-L3-L4 is calculated

[0028] L5+L6=L1-L1' is calculated

[0029] L5+L6 is the total length of the wear and tear.

[0030] The chain number value of the internal storage standard can be directly compared with the measured value by the instrument to show the percentage value of the chain elongation.

[0031] It can be understood that the utility model is described through some embodiments, and the person skilled in the art knows that various changes or equivalent replacements can be made to these features and embodiments without departing from the spirit and scope of the utility model. In addition, under the guidance of the utility model, these features and embodiments can be modified to adapt to specific conditions and materials without departing from the spirit and scope of the utility model. Therefore, the utility model is not limited by the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of the present application belong to the scope protected by the utility model.

Claims

1. A portable chain wear tester, characterized in that: It includes a bolt (1), a fixed ruler (2), two movable rulers (4), four verniers (6) and two connecting rods (3); the fixed ruler (2) is horizontally set and has a vertical threaded hole in the middle. The bolt (1) is installed in the threaded hole of the fixed ruler (2). The left and right ends of the fixed ruler (2) are respectively connected to the two movable rulers (4). Each movable ruler (4) has two verniers (6) slidably installed on it and locked by nuts (5). Each vernier (6) is provided with a pin hole. The bolt (1) is detachably hinged to the vernier (6) through the connecting rod (3) and the pin hole.

2. The portable chain wear tester according to claim 1, characterized in that: The four verniers (6) are vernier one (601), vernier two (602), vernier three (603) and vernier four (604). Vernier one (601) and vernier two (602) are slidably mounted on the movable ruler (4) located on the left end, and vernier three (603) and vernier four (604) are slidably mounted on the movable ruler (4) located on the right end.

3. A portable chain wear tester according to claim 1 or 2, characterized in that: Each vernier (6) adopts a split structure, consisting of an upper connecting part (605) and a lower measuring jaw part (606), and the connecting part (605) and the measuring jaw part (606) are connected by a pin joint (607), and the axial direction of the pin joint (607) is the length direction of the movable ruler (4).

4. The portable chain wear tester according to claim 1, characterized in that: The fixed ruler (2) has slide rails or tracks at both ends that are slidably connected to the movable ruler (4) and fixed by set screws.

5. A portable chain wear tester according to claim 1, characterized in that: Each of the connecting rods (3) is rotatably mounted with a pin (7) at both the upper and lower ends. The pin (7) at the upper end of the connecting rod (3) is fixedly connected to the bolt (1), and the pin (7) at the lower end of the connecting rod (3) is detachably connected to the pin hole of the vernier (6).

Images