Horizontal tension sensor detection test bed
By designing a horizontal structure tension sensor detection test bench, combined with the combination of jack, standard tension gauge and tension sensor, the problem of difficulty in real-time detection of belt tension in the existing technology is solved, and an efficient and easy-to-use test bench is achieved, ensuring the normal operation of the belt transporter.
Patent Information
- Application Number
- CN202421647400.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-12
- Publication Date
- 2025-04-25
- Estimated Expiration
- 2034-07-12
AI Technical Summary
During the operation of a belt conveyor, real-time detection of the tension force of the belt is a necessary condition to ensure the normal operation of the machine, but the prior art is difficult to provide an efficient and easy-to-use tension sensor test bench.
A horizontal tension sensor detection test bench was designed, using a combination of a jack, a standard tension gauge and a tension sensor. The jack is driven by a hydraulic pump, and the tension transmission is achieved using a bow lifting shackle and a fixed lifting support, and intuitive torque reading is achieved through a standard tension gauge and a liquid crystal display.
A stable and easy-to-operate test bench is realized, which can effectively share torque, simplify structure, reduce maintenance work, and minimize detection errors by directly measuring torque, meeting the maximum test torque requirements of the tension sensor.
Smart Images
Figure CN222800237U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of tension sensor detection, and relates to a horizontal tension sensor detection test bench. Background Art
[0002] In industrial production, large-scale belt conveyors are increasingly used. In order to ensure the safe operation of belt conveyors, corresponding belt protection systems have emerged. Belt protection systems are generally composed of a control host and protection sensors. Belt protection sensors are divided into deviation sensors, tear sensors, temperature sensors, speed sensors, tension sensors, etc. These sensors can detect the operating status of the belt conveyor in real time and upload the status to the control host in the form of electrical signals for the host to make logical judgments in order to perform corresponding early warning and stop operations on the belt conveyor.
[0003] In order to ensure that there is no slippage (relative friction) between the drive roller and the belt during the operation of the belt conveyor, the belt needs to maintain appropriate tension. If the tension is too large, the belt is easy to break, the belt roller bearing life is shortened, and the drive motor power consumption increases; if the tension is too small, the belt and the drive roller are prone to slippage, the belt cannot reach the rated operating speed, the drive roller friction heats up, and it is easy to cause fire accidents. Therefore, real-time detection of the belt tension is a necessary condition for the normal operation of the belt conveyor.
[0004] The side pressure tension sensor is widely used in belt protection due to its advantages such as simple installation (it can be installed on the tensioning wire rope of the belt conveyor by bolts and pressure plates, without cutting the wire rope and connecting it in series), high sensitivity, long service life, and simple maintenance. When the wire rope is tightened, the pressure plate is forced upward and the pillow blocks at both ends are forced downward, causing the sensor body to deform upward in the middle and downward at both ends, and the output resistance of the strain gauge inside it will also change accordingly. The signal board inside the sensor calculates the torque of the wire rope by detecting the output resistance of the strain gauge, thereby outputting the corresponding electrical signal.
[0005] Therefore, a tension sensor with excellent performance is the basis for providing tension protection for belt conveyors. In order to facilitate the production, debugging and factory inspection of this type of tension sensor, it is of great significance to design and manufacture an efficient and easy-to-use tension sensor test bench. Summary of the invention
[0006] In view of this, the purpose of the present utility model is to provide a horizontal tension sensor detection test bench that can solve the above-mentioned problems.
[0007] In order to achieve the above object, the utility model provides the following technical solutions:
[0008] A horizontal tension sensor detection test bench comprises a test bench bracket for support, a jack, a standard tensile gauge and a tension sensor are respectively distributed above the test bench bracket from one end to the other end, a top rod of the jack faces the side away from the standard tensile gauge, the top rod is hollow, a pull rod is located inside the top rod, one end of the pull rod is fixedly connected to the end of the top rod, the other end of the pull rod passes through the top rod and is fixedly connected to a movable lifting ring, the movable lifting ring is fixedly connected to one end of the standard tensile gauge, the other end of the standard tensile gauge is fixedly connected to one end of a steel wire rope, and the other end of the steel wire rope passes through the tension sensor and is fixed to the test bench bracket.
[0009] Furthermore, the movable lifting ring is fixedly connected to one end of the standard tensile gauge through a bow-shaped lifting shackle 1, the other end of the standard tensile gauge is fixedly connected to one end of the wire rope through a bow-shaped lifting shackle 1, the other end of the wire rope is fixedly connected to a bow-shaped lifting shackle 2 after passing through the tension sensor, the bow-shaped lifting shackle 2 is fixed on a fixed lifting ring support, and the fixed lifting ring support is fixed on the testing table bracket.
[0010] Furthermore, a hydraulic pump matching the jack is fixed on the test bench bracket on the side of the jack.
[0011] Furthermore, the standard tensile gauge is fixed on the testing platform bracket through a tensile sensor bracket.
[0012] Furthermore, the tension sensor is fixed on the testing platform bracket through the tension sensor bracket.
[0013] Furthermore, a protective cover for protecting the push rod is fixed to the rear end of the jack.
[0014] Furthermore, a pressure beam positioning support is fixed on the test platform bracket between the standard tensile gauge and the tension sensor, and a through hole is left in the middle of the pressure beam positioning support for the wire rope to pass through.
[0015] Furthermore, a universal load-bearing wheel is fixedly mounted on the lower end of the supporting leg.
[0016] Furthermore, the jack is fixed on the testing platform bracket through a jack support.
[0017] Furthermore, the jack adopts a hollow hydraulic jack.
[0018] The beneficial effects of the utility model are:
[0019] The utility model adopts a horizontal structure design, the test surface height is moderate, and it is easy to operate; compared with the vertical structure, the horizontal structure is more stable, not easy to fall over, and easy to operate;
[0020] The force-bearing part of the structure of the utility model adopts square steel as the main support to share the force. When the same type of pipe is used, it can withstand a larger torque, and the hollow structure is conducive to the disassembly, installation, and placement of the tension sensor and the standard tensile gauge.
[0021] The utility model adopts a hollow hydraulic jack as a pulling force source, and the pull rod can be inserted through the central through hole on the top rod, directly converting the outward thrust of the jack into an outward pulling force. Compared with the method of using a pulley guide, this design greatly simplifies the structure and reduces the subsequent maintenance work;
[0022] The utility model adopts hydraulic form as the driving source, which has a larger torque compared with the pneumatic source; compared with the electric motor, it reduces a large number of speed reduction mechanisms, and the stroke is easy to control;
[0023] The utility model adopts a standard tension gauge as the standard for measuring torque, which saves the link of "hydraulic pressure → tension" conversion compared with the hydraulic pressure gauge, and the measurement is more direct and reliable;
[0024] The utility model connects the standard tensile meter in series with the steel wire rope and the pull rod. The standard tensile meter has a liquid crystal display screen, and the reading is intuitive. Moreover, the tensile meter and the measured tension sensor are subjected to the same force, which eliminates the detection error to the greatest extent.
[0025] The design of the load-bearing universal wheel of the utility model enables the test bench to have a flexible space reuse function, which is of great significance for application places with limited space;
[0026] The protective cover for protecting the top rod of the utility model can prevent the top rod of the jack from being damaged by collision with foreign objects during the movement of the test bench, thereby extending the service life of the jack. BRIEF DESCRIPTION OF THE DRAWINGS
[0027] The accompanying drawings constituting a part of the present invention are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the accompanying drawings:
[0028] Figure 1 It is a front view of an embodiment of the utility model;
[0029] Figure 2 It is a top view of an embodiment of the utility model.
[0030] Description of reference numerals:
[0031] 1. Test bench bracket; 2. Protective cover; 3. Jack support; 4. Mobile lifting ring; 5. Tension sensor bracket; 6. Pressure beam positioning support; 7. Tension sensor bracket; 8. Pressure beam; 9. Fixed lifting ring support; 10. Bow-shaped lifting shackle II; 11. Tension sensor; 12. Wire rope; 13. Bow-shaped lifting shackle I; 14. Standard dynamometer; 15. Jack. DETAILED DESCRIPTION
[0032] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.
[0033] In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", etc. are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the present utility model, unless otherwise specified, "multiple" means two or more.
[0034] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" 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 by specific circumstances.
[0035] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments.
[0036] As shown in the figure, a horizontal tension sensor test bench includes a test bench bracket 1 for supporting, the test bench bracket 1 includes four support legs, the four support legs are made of square steel columns, and the upper ends of the support legs are respectively fixed at the lower ends of the four corners of the corresponding upper frame.
[0037] A jack 15 , a standard dynamometer 14 , and a tension sensor 11 are respectively arranged on the top of the test bench bracket 1 from one end to the other end.
[0038] The jack 15 is fixed to one end of the test bench bracket 1 through the jack support 3. The top rod of the jack 15 faces the side away from the standard dynamometer 14. The top rod is hollow, and the pull rod is located inside the top rod. One end of the pull rod is fixedly connected to the end of the top rod, and the other end of the pull rod passes through the jack support 3 and is fixedly connected to the movable lifting ring 4. A hydraulic pump that matches the jack 15 is fixed on the test bench bracket 1 on the side of the jack 15.
[0039] The mobile lifting ring 4 is fixedly connected to one end of the standard tensile gauge 14 through the bow-shaped lifting shackle 13, and the other end of the standard tensile gauge 14 is fixedly connected to one end of the wire rope 12 through the bow-shaped lifting shackle 13. The other end of the wire rope 12 passes through the tension sensor 11 and is fixedly connected to the bow-shaped lifting shackle 2 10. The bow-shaped lifting shackle 2 10 is fixed to the fixed lifting ring support 9, and the fixed lifting ring support 9 is fixed to the other end of the test bench bracket 1.
[0040] The standard tensile gauge 14 is fixed on the testing platform bracket 1 through the tensile sensor bracket 5 .
[0041] The tension sensor 11 is fixed on the detection platform bracket 1 through the tension sensor bracket 7.
[0042] A protective cover 2 for protecting the push rod is fixed to the rear end of the jack 15 . The protective cover 2 of the push rod can prevent the push rod of the jack 15 from being damaged by foreign objects during the movement of the test bench, thereby extending the service life of the jack 15 .
[0043] The jack 15 adopts a hollow hydraulic jack 15.
[0044] A pressure beam positioning support 6 is fixed on the test platform bracket 1 between the standard tensile gauge 14 and the tension sensor 11, and a through hole is left in the middle of the pressure beam positioning support 6 for the steel wire rope 12 to pass through.
[0045] The fixed lifting ring support 9 and the pressure beam positioning support 6, and the pressure beam positioning support 6 and the jack support 3 are respectively fixedly connected through the pressure beam 8. The fixed lifting ring support 9, the pressure beam positioning support 6 and the jack support 3 are respectively made of square steel plates.
[0046] Universal load-bearing wheels are fixedly installed at the lower end of the supporting legs, so one person can easily move the machine.
[0047] The test bench bracket 1 is made of square steel welded together, and its surface is rust-proofed by baking varnish.
[0048] The test bench is designed to withstand a tensile force of 15T in the left and right directions, which can meet the maximum test torque requirements of the GAD100 tension sensor 11.
[0049] The working principle of this utility model:
[0050] When the utility model is working, the top rod of the jack 15 is pushed out to the right, and the pull rod passes through the hollow hole of the top rod from left to right. After passing through the top rod, the right end of the pull rod is fixed to the top rod through a lock nut. The two ends of the standard tensile gauge 14 are respectively fixedly connected to the wire rope 12 and the pull rod through the bow-shaped lifting shackle 13. The other end of the wire rope 12 is fixed to the leftmost side of the test bench through the bow-shaped lifting shackle 2 10. The jack 15 is driven by a separate manual hydraulic pump, and the two are connected by a high-pressure oil pipe. During the test, the hydraulic pump pressure rod is pressed, the push rod of the jack 15 moves to the right, pushing the lock nut to the right, the push rod drives the pull rod to move to the right, the pull rod pulls the standard tension gauge 14 to the right, the standard tension gauge 14 tightens the wire rope 12, when the wire rope 12 is tightened, the push rod moves to the right again, which will cause the standard tension gauge 14 and the tension sensor 11 to deform, so that their respective detection circuits can convert the torque borne by the wire rope 12 by detecting their respective deformation amounts.
[0051] The test bench of the tension sensor 11 of the utility model adopts a horizontal structure design, and the test surface height is moderate and easy to operate. Compared with the vertical structure, the horizontal structure is more stable, not easy to tip over, and easy to operate. The force-bearing part of the structure adopts 4 square steels as the main support to share the force. When the same type of pipe is used, it can withstand a greater torque, and the hollow structure is conducive to the disassembly, assembly, and placement of the tension sensor 11 and the standard tensile gauge 14.
[0052] A 20T hollow hydraulic jack 15 is installed horizontally at the far right end of the test bench. The hollow hydraulic jack 15 is used as the pulling force source. The pull rod can be inserted through the central through hole on its top rod, directly converting the outward thrust of the jack 15 into an outward pulling force. Compared with the pulley guide method, this design greatly simplifies the structure and reduces the subsequent maintenance work. Compared with the pneumatic source, the hydraulic form is used as the driving source, which has a larger torque; compared with the electric motor, a large number of reduction mechanisms are reduced, and the stroke is easy to control.
[0053] The standard dynamometer 14 is used as the standard for measuring torque. Compared with the hydraulic pressure gauge, the conversion link of "hydraulic pressure → tension" is omitted, and the measurement is more direct and reliable. The standard dynamometer 14 is connected in series with the steel wire rope 12 and the pull rod. The standard dynamometer 14 has a liquid crystal display screen, and the reading is intuitive. In addition, the dynamometer and the measured tension sensor 11 are subjected to the same force, which eliminates the detection error to the greatest extent.
[0054] The design of the load-bearing universal wheel enables the test bench to have a flexible spatial reuse function, which is of great significance for application sites with limited space. The installation of the tension sensor bracket 5 can fix the standard tension gauge 14 so that it can only move left and right along the force direction of the wire rope 12 and complete the operation of taking and placing the equipment, which can eliminate the risk of the equipment falling and breaking, while ensuring that the equipment can move left and right without restriction, ensuring the normal progress of the test process.
[0055] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.
Claims
1. A horizontal tension sensor test bench, characterized in that: The invention comprises a test bench bracket (1) for supporting, wherein a jack (15), a standard tensile gauge (14), and a tension sensor (11) are respectively distributed in sequence from one end to the other end above the test bench bracket (1), wherein a top rod of the jack (15) faces a side away from the standard tensile gauge (14), the top rod is hollow, a pull rod is located inside the top rod, one end of the pull rod is fixedly connected to the end of the top rod, the other end of the pull rod passes through the top rod and is fixedly connected to a movable lifting ring (4), the movable lifting ring (4) is fixedly connected to one end of the standard tensile gauge (14), the other end of the standard tensile gauge (14) is fixedly connected to one end of a steel wire rope (12), and the other end of the steel wire rope (12) passes through the tension sensor (11) and is fixed to the test bench bracket (1).
2. A horizontal tension sensor test bench according to claim 1, characterized in that: The movable lifting ring (4) is fixedly connected to one end of a standard tensile gauge (14) through a bow-shaped lifting shackle (13); the other end of the standard tensile gauge (14) is fixedly connected to one end of a steel wire rope (12) through a bow-shaped lifting shackle (13); the other end of the steel wire rope (12) passes through a tension sensor (11) and is fixedly connected to a bow-shaped lifting shackle (10); the bow-shaped lifting shackle (10) is fixed to a fixed lifting ring support (9); and the fixed lifting ring support (9) is fixed to a test bench bracket (1).
3. The horizontal tension sensor test bench according to claim 1, characterized in that: A hydraulic pump matched with the jack (15) is fixed on the detection platform bracket (1) on the side of the jack (15).
4. The horizontal tension sensor test bench according to claim 1, characterized in that: The standard tensile gauge (14) is fixed on the testing platform bracket (1) via the tensile sensor bracket (5).
5. The horizontal tension sensor test bench according to claim 1, characterized in that: The tension sensor (11) is fixed on the detection platform bracket (1) via the tension sensor bracket (7).
6. The horizontal tension sensor test bench according to claim 1, characterized in that: A protective cover (2) for protecting the push rod is fixed to the rear end of the jack (15).
7. The horizontal tension sensor test bench according to claim 1, characterized in that: A pressure beam positioning support (6) is fixed on the test platform bracket (1) between the standard tensile gauge (14) and the tension sensor (11), and a through hole is left in the middle of the pressure beam positioning support (6) for the steel wire rope (12) to pass through.
8. The horizontal tension sensor test bench according to claim 1, characterized in that: Universal load-bearing wheels are fixedly installed at the lower ends of the supporting legs.
9. The horizontal tension sensor test bench according to claim 1, characterized in that: The jack (15) is fixed on the testing platform bracket (1) via the jack support (3).
10. The horizontal tension sensor test bench according to claim 1, characterized in that: The jack (15) adopts a hollow hydraulic jack (15).