Forklift brake detection equipment

Abstract

The utility model provides a forklift brake detection device which comprises a groove body installed on the ground, the inner side of the groove body is movably connected with two groups of detection rollers, every two detection rollers form one group, the top surface of each detection roller protrudes out of the top surface of the groove body, and the outer end of each detection roller is fixedly connected with an outer wheel. The utility model has the advantages that the cover plate which can be opened by turning upwards is designed, the hydraulic cylinder provides power, the root part of the hydraulic cylinder is movably connected with the contact, and the tail end of the output end of the hydraulic cylinder is movably connected with the rotary joint at the bottom of the cover plate, so that when the output end of the hydraulic cylinder is ejected out, the cover plate is opened by rotating upwards, and meanwhile, the joint and the middle plate are detached, and at the moment, the cover plate can be opened. Most of the interior of the tank body is exposed, the operation space is large, the interior of the tank body can be conveniently cleaned, sundries and garbage left in the tank body due to the fact that the detection roller makes contact with wheels of a forklift can be conveniently cleaned, and the problems existing in the prior art are effectively solved.

Description

Technical Field

[0001] The utility model relates to the technical field of forklift brake detection, in particular to a forklift brake detection device. Background Art

[0002] When the forklift wheels are tested for braking performance, they are usually driven to a reaction brake test bench, where a test roller is used to simulate the actual braking conditions during driving, thereby evaluating the braking performance of the forklift. The reaction brake test bench evaluates the braking performance of the forklift by simulating the rolling conditions of the forklift wheels on the roller. During the test, the forklift wheels are placed on the roller, which is driven by an electric motor to simulate the driving state of the forklift. Then, by applying braking force, the braking conditions of the forklift are observed, such as braking distance, braking time, braking force, etc., to determine whether its braking performance is qualified.

[0003] However, there are usually impurities and dirt attached to the wheels of forklifts. When the wheels are inspected, the wheels rub against the rollers at high speed, which can easily cause the impurities and dirt on the wheels to be moved onto the rollers and then fall into the inspection platform. The inspection platform has a compact structure and is inconvenient to disassemble and open. When there are a lot of impurities accumulated inside, the performance of the inspection platform will be affected. Therefore, a forklift brake inspection device is proposed to solve the above problem. Utility Model Content

[0004] The purpose of the present invention is to solve at least one of the above technical deficiencies.

[0005] Therefore, one purpose of the present invention is to provide a forklift brake detection device to solve the problems mentioned in the background technology and overcome the deficiencies in the prior art.

[0006] In order to achieve the above-mentioned object, an embodiment of the utility model provides a forklift brake detection device, comprising a trough body installed on the ground, two groups of detection rollers are movably connected to the inner side of the trough body, and each group of two detection rollers, and the top surface of the detection roller protrudes from the top surface of the trough body;

[0007] The outer end of the detection roller is fixedly connected to an outer wheel, and the outer surface of the outer wheel is movably connected to a chain;

[0008] The bottom surface of the inner side of the tank body is fixedly connected with an inner column, the top of the inner column is provided with an interface, the top of the inner column is detachably connected with a middle plate, the top of the middle plate is plugged with a joint, and the joint is threadedly connected with the interface;

[0009] A cover plate is movably connected to the top edge of the inner side of the trough body, and the cover plate can be flipped up to open. A contact is fixedly connected to the arm on the inner side of the trough body, and a hydraulic cylinder is movably connected to the inner side of the contact. A swivel is fixedly connected to the center line of the bottom surface of the cover plate, and the end of the output end of the hydraulic cylinder is movably connected to the swivel. A reducer and a force measuring lever for driving the detection roller to rotate are provided in the middle of the trough body.

[0010] Preferably, any of the above solutions has the top surface of the trough body flush with the ground, and the trough body is made of stainless steel.

[0011] Adopting the above technical solution: this device is specially used for brake detection of forklifts.

[0012] The working principle of this device is that the wheel is placed between the detection rollers. A reducer is installed in the middle of the trough body, and the wheel is driven to rotate at a low speed through the reducer, chain drive and detection roller. After the wheel speed stabilizes, the driver steps on the brake pedal, and the wheel begins to rotate at a reduced speed under the friction torque of the wheel brake. At this time, the friction force of the detection roller driven by the reducer on the wheel tire overcomes the friction torque of the brake and maintains the continued rotation of the wheel. At the same time, under the friction force of the wheel tire on the tangential direction of the detection roller surface, the reducer and the force measuring lever swing in the opposite direction of the detection roller. The force or displacement at one end of the force measuring lever is converted into an electrical signal proportional to the braking force by the sensor. After amplification and filtering, and conversion into the corresponding digital quantity by the A / D converter, it is collected, stored and processed by the computer, and finally the detection result is obtained, and the forklift braking data is obtained.

[0013] Preferably, any of the above schemes is that the distance between the inner wall of the tank body and the detection roller is 20-30 cm.

[0014] Preferably, any of the above schemes has a surface adhesion of 0.9 and sand particles are attached to the surface of the detection roller.

[0015] Adhesion or adhesion coefficient usually has no direct unit, because it is a ratio that indicates the adhesion between the tire and the ground. The national standard stipulates that the adhesion coefficient shall not be less than 0.75, but most of the brake test benches manufactured in China are steel rollers with molten bauxite sand on the surface, and the adhesion coefficient is mostly between 0.8 and 0.9.

[0016] The above technical solution is adopted: the core structure of this device is: trough body, detection roller, inner column, interface, middle plate, joint, cover plate, contact, hydraulic cylinder, and swivel. The core advantages of this device are: the trough body is designed to be widened, and a large gap is left between the inner side of the trough body and the detection roller. At the same time, a removable middle plate is designed in the gap between the detection roller, and a cover plate that can be flipped up and opened is designed in the gap between the detection roller and the trough body. The power is provided by a hydraulic cylinder, and the root of the hydraulic cylinder is movably connected to the contact, and the end of the output end of the hydraulic cylinder is movably connected to the swivel at the bottom of the cover plate. In this way, when the output end of the hydraulic cylinder is ejected, the cover plate is rotated upward and opened. At the same time, the joint is removed and the middle plate is removed. At this time, most of the interior of the trough body is exposed, and the operating space is large. The interior of the trough body can be cleaned more conveniently. The debris and garbage left inside the trough body by the contact between the detection roller and the forklift wheel can be cleaned more conveniently, which effectively solves the problems existing in the prior art.

[0017] The design of the cover also ensures the sealing of the tank when it is closed, preventing debris from entering.

[0018] Preferably, any of the above schemes is that the inner column is welded on the center line of the inner bottom surface of the trough body, and the top surface of the middle plate is lower than the top surface of the trough body.

[0019] Preferably, any of the above schemes is that the joint is specifically a hexagon socket bolt, and the top surface of the cover plate is initially flush with the top surface of the tank body.

[0020] Preferably, any of the above schemes is that the hydraulic cylinder is installed at an angle.

[0021] Compared with the prior art, the advantages and beneficial effects of the utility model are:

[0022] The forklift brake detection equipment is designed with a widened trough body through the coordinated arrangement of a trough body, a detection roller, an inner column, an interface, a middle plate, a joint, a cover plate, a contact point, a hydraulic cylinder, and a swivel. A large gap is left between the inner side of the trough body and the detection roller. At the same time, a detachable middle plate is designed for the gap between the detection rollers. A cover plate that can be flipped up and opened is designed at the gap between the detection roller and the trough body. The hydraulic cylinder provides power. The root of the hydraulic cylinder is movably connected to the contact point. The end of the output end of the hydraulic cylinder is movably connected to the swivel at the bottom of the cover plate. In this way, when the output end of the hydraulic cylinder is ejected, the cover plate is rotated upward and opened. At the same time, the joint is disassembled and the middle plate is removed. At this time, most of the interior of the trough body is exposed, the operating space is large, the interior of the trough body can be cleaned more conveniently, and the debris and garbage left in the trough body due to the contact between the detection roller and the forklift wheel can be cleaned more conveniently, thereby effectively solving the problems existing in the prior art.

[0023] Additional aspects and advantages of the present invention will be given in part in the following description and in part will become apparent from the following description or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0025] Figure 1 It is a structural schematic diagram of the utility model from the first perspective;

[0026] Figure 2 It is a structural schematic diagram of the utility model from a second viewing angle;

[0027] Figure 3 This is a schematic diagram of the structure of the inner side of the tank body of the utility model;

[0028] Figure 4 For this utility model Figure 3 Schematic diagram of the enlarged structure at point A in the middle.

[0029] In the figure: 1-tank body, 2-detection roller, 3-outer wheel, 4-inner column, 5-interface, 6-middle plate, 7-joint, 8-cover plate, 9-connection point, 10-hydraulic cylinder, 11-swivel joint. DETAILED DESCRIPTION

[0030] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0031] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0032] like Figure 1-4 As shown, the forklift brake detection device comprises a trough body 1 installed on the ground, and two groups of detection rollers 2 are movably connected to the inner side of the trough body 1, and each group of two detection rollers 2 is formed, and the top surface of the detection roller 2 protrudes from the top surface of the trough body 1;

[0033] The outer end of the detection roller 2 is fixedly connected with an outer wheel 3, and the outer surface of the outer wheel 3 is movably connected with a chain;

[0034] The bottom surface of the inner side of the tank body 1 is fixedly connected with an inner column 4, the top of the inner column 4 is provided with an interface 5, the top of the inner column 4 is detachably connected with a middle plate 6, the top of the middle plate 6 is plugged with a joint 7, and the joint 7 is threadedly connected with the interface 5;

[0035] A cover plate 8 is movably connected to the top edge of the inner side of the trough body 1, and the cover plate 8 can be flipped up to open. A contact 9 is fixedly connected to the arm on the inner side of the trough body 1, and a hydraulic cylinder 10 is movably connected to the inner side of the contact 9. A swivel 11 is fixedly connected to the center line of the bottom surface of the cover plate 8, and the end of the output end of the hydraulic cylinder 10 is movably connected to the swivel 11. The middle part of the trough body 1 is provided with a reducer and a force measuring lever for driving the detection roller 2 to rotate.

[0036] Embodiment 1: The top surface of the tank body 1 is flush with the ground, and the material of the tank body 1 is stainless steel. This device is specifically used for forklift brake detection. The distance between the inner wall of the tank body 1 and the detection roller 2 is 20-30 cm. The surface adhesion of the detection roller 2 is 0.9, and sand particles are attached to the surface of the detection roller 2.

[0037] Adhesion or adhesion coefficient usually has no direct unit, because it is a ratio that indicates the adhesion between the tire and the ground. The national standard stipulates that the adhesion coefficient shall not be less than 0.75, but most of the brake test benches manufactured in China are steel rollers with molten bauxite sand on the surface, and the adhesion coefficient is mostly between 0.8 and 0.9.

[0038] Embodiment 2: The inner column 4 is welded on the center line of the inner bottom surface of the tank body 1, and the top surface of the middle plate 6 is lower than the top surface of the tank body 1. The joint 7 is specifically a hexagon socket bolt, and the top surface of the cover plate 8 is flush with the top surface of the tank body 1 when it is initially closed. The design of the cover plate 8 also ensures the sealing of the tank body 1 when it is closed to prevent debris from entering. The hydraulic cylinder 10 is installed at an angle.

[0039] The working principle of the utility model is as follows:

[0040] The wheel is placed between the detection rollers 2. A speed reducer is installed in the middle of the tank body 1, which drives the wheel to rotate at a low speed through the speed reducer, chain drive and detection roller 2. After the wheel speed stabilizes, the driver steps on the brake pedal, and the wheel begins to rotate at a reduced speed under the friction torque of the wheel brake. At this time, the friction force of the detection roller 2 driven by the speed reducer on the wheel tire overcomes the friction torque of the brake to maintain the continued rotation of the wheel. At the same time, under the friction force of the wheel tire on the tangential direction of the surface of the detection roller 2, the speed reducer and the force measuring lever swing in the opposite direction of the rotation of the detection roller 2. The force or displacement at one end of the force measuring lever is converted into an electrical signal proportional to the braking force by the sensor. After amplification and filtering, and conversion into the corresponding digital quantity by the A / D converter, it is collected, stored and processed by the computer, and finally the detection result is obtained, and the forklift braking data is obtained.

Claims

1. A forklift brake detection device, characterized in that: It comprises a trough body (1) installed on the ground, wherein two groups of detection rollers (2) are movably connected to the inner side of the trough body (1), wherein two detection rollers (2) form a group, and the top surfaces of the detection rollers (2) protrude from the top surface of the trough body (1); The outer end of the detection roller (2) is fixedly connected to an outer wheel (3), and the outer surface of the outer wheel (3) is movably connected to a chain; The bottom surface of the inner side of the trough body (1) is fixedly connected to an inner column (4), the top of the inner column (4) is provided with an interface (5), the top of the inner column (4) is detachably connected to a middle plate (6), the top of the middle plate (6) is plugged with a joint (7), and the joint (7) is threadedly connected to the interface (5); A cover plate (8) is movably connected to the top edge of the inner side of the trough body (1), and the cover plate (8) can be flipped up to open. A contact point (9) is fixedly connected to the arm on the inner side of the trough body (1), and a hydraulic cylinder (10) is movably connected to the inner side of the contact point (9). A swivel (11) is fixedly connected to the center line of the bottom surface of the cover plate (8), and the end of the output end of the hydraulic cylinder (10) is movably connected to the swivel (11). The middle part of the trough body (1) has a reducer and a force measuring lever for driving the detection roller (2) to rotate.

2. A forklift brake detection device according to claim 1, characterized in that: The top surface of the trough body (1) is flush with the ground, and the trough body (1) is made of stainless steel.

3. A forklift brake detection device as claimed in claim 2, characterized in that: The distance between the inner wall of the trough body (1) and the detection roller (2) is 20-30 centimeters.

4. A forklift brake detection device as claimed in claim 3, characterized in that: The surface adhesion of the detection roller (2) is 0.9, and sand particles are attached to the surface of the detection roller (2).

5. A forklift brake detection device as claimed in claim 4, characterized in that: The inner column (4) is welded on the center line of the inner bottom surface of the trough body (1), and the top surface of the middle plate (6) is lower than the top surface of the trough body (1).

6. A forklift brake detection device as claimed in claim 5, characterized in that: The joint (7) is specifically a hexagon socket bolt, and when the cover plate (8) is initially in place, its top surface is flush with the top surface of the tank body (1).

7. A forklift brake detection device according to claim 6, characterized in that: The hydraulic cylinder (10) is installed at an angle.

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