Anti-overloading force transducer

Abstract

The utility model discloses an anti-overload force transducer which comprises a mounting plate, four corners of the top of the mounting plate are provided with mounting holes, and the center of the top of the mounting plate is fixedly provided with a force transducer body. According to the utility model, the force transducer body senses that the material is too heavy and exceeds the load, the force transducer body sends an instruction to the processor, the processor processes the instruction and then starts the motor, the motor starts to drive the threaded rod to rotate, the threaded rod rotates to drive the threaded block to move on the surface of the threaded rod through threads, and the threaded block moves to drive the lifting plate to move. A lifting plate moves to drive a guide sleeve to slide on the surface of a guide rod, the lifting plate moves to drive a lifting column to ascend, the lifting column ascends to drive an anti-overload supporting plate and a buffer cushion to ascend to support and protect a discharging table, overload of a force transducer body is prevented, and meanwhile the force transducer body is prevented from being damaged. And the advantage of overload protection of the force transducer is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of force measuring sensors, in particular to an overload-proof force measuring sensor. Background Art

[0002] The force sensor is composed of three parts: one or more elastic bodies that can deform after being subjected to force, a bridge circuit (such as a Wheatstone bridge) composed of a resistance strain gauge that can sense the deformation, an adhesive that can fix the resistance strain gauge on the elastic body and can conduct the strain, and a sealant that protects the electronic circuit.

[0003] When conducting gravity testing on materials, a force sensor is required. Currently, the existing force sensors do not have an overload protection function. As a result, when the force sensor is in use, since the force sensor does not have a good overload protection structure, once the force sensor is subjected to a force exceeding its rated load during use, the force sensor is easily damaged. Therefore, we provide an overload-proof force sensor to solve the above problem. Utility Model Content

[0004] The purpose of the utility model is to provide an overload-proof force sensor, which has the advantage of being able to protect the force sensor from overload, and solves the problem that the existing force sensor does not have an overload-proof function, resulting in the force sensor being easily damaged when in use because the force sensor does not have a good overload-proof protection structure. Once the force sensor is subjected to a force exceeding its rated load during use, the force sensor is easily damaged.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an overload-proof force sensor, comprising a mounting plate, four corners of the top of the mounting plate are provided with mounting holes, a force sensor body is fixedly mounted at the center of the top of the mounting plate, a material unloading table is fixedly mounted on the top of the force sensor body, a protection box is fixedly connected to the front of the force sensor body, a processor is fixedly connected to the bottom of the inner wall of the protection box, both sides of the force sensor body are fixedly connected to a box body, a motor is fixedly connected to the center of the bottom of the inner wall of the box body, and the output end of the motor A threaded rod is fixedly connected, a threaded block is threadedly connected to the surface of the threaded rod, a lifting plate is fixedly connected to both sides of the threaded block, a guide sleeve is fixedly connected to the outer side of the lifting plate, a guide rod is slidably connected to the inner cavity of the guide sleeve, the outer end of the guide rod is fixedly connected to the inner wall of the box, a lifting column is fixedly connected to the top of the lifting plate, the top of the lifting column passes through the top of the box and is fixedly connected to an anti-overload support plate, the output end of the force sensor body is unidirectionally electrically connected to the input end of the processor, and the output end of the processor is unidirectionally electrically connected to the input end of the motor.

[0006] As a preferred solution, heat dissipation grooves are provided on both sides of the protection box, and dustproof nets are fixedly connected to the inner walls of the heat dissipation grooves.

[0007] As a preferred solution, a bearing seat is sleeved on the top end of the threaded rod, and the top of the bearing seat is fixedly connected to the center of the top of the inner wall of the box body.

[0008] As a preferred solution, guide grooves are provided on both sides of the inner wall of the box, the inner cavity of the guide groove is slidably connected with a guide block, and the inner side of the guide block is fixedly connected to the outer side of the guide sleeve.

[0009] As a preferred solution, a buffer pad is bonded and connected to the top of the anti-overload support plate, and the material of the buffer pad is buffer rubber.

[0010] As a preferred solution, through grooves are provided on both sides of the top of the box body, and the diameter of the inner cavity of the through groove is larger than the diameter of the lifting column.

[0011] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0012] The utility model senses that the material is too heavy and exceeds the load through the force sensor body, and the force sensor body sends an instruction to the processor, and the processor starts the motor after processing. The motor starts and drives the threaded rod to rotate. The rotation of the threaded rod drives the threaded block to move on the surface of the threaded rod through the thread. The movement of the threaded block drives the lifting plate to move. The movement of the lifting plate drives the guide sleeve to slide on the surface of the guide rod. The movement of the lifting plate drives the lifting column to rise and move. The rising movement of the lifting column drives the anti-overload support plate and the buffer pad to rise to support and protect the discharge table, thereby preventing the force sensor body from being overloaded and also preventing the force sensor body from being damaged, thereby achieving the advantage of overload protection for the force sensor. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0014] Figure 2 This is an enlarged cross-sectional view of the internal structure of the box of the utility model;

[0015] Figure 3 This is a front view of the structure section of the utility model;

[0016] Figure 4 This is the principle diagram of the utility model system.

[0017] In the figure: 1. Mounting plate; 2. Mounting hole; 3. Force sensor body; 4. Unloading table; 5. Protection box; 6. Processor; 7. Box; 8. Motor; 9. Threaded rod; 10. Threaded block; 11. Lifting plate; 12. Guide sleeve; 13. Guide rod; 14. Lifting column; 15. Anti-overload support plate; 16. Heat dissipation slot; 17. Dust net; 18. Bearing seat; 19. Guide slot; 20. Guide block; 21. Buffer pad. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0019] See also Figure 1-4 A force sensor for preventing overload comprises a mounting plate 1, mounting holes 2 are provided at the four corners of the top of the mounting plate 1, a force sensor body 3 is fixedly installed at the center of the top of the mounting plate 1, a discharging table 4 is fixedly installed on the top of the force sensor body 3, a protection box 5 is fixedly connected to the front of the force sensor body 3, a processor 6 is fixedly connected to the bottom of the inner wall of the protection box 5, both sides of the force sensor body 3 are fixedly connected to a box body 7, a motor 8 is fixedly connected to the center of the bottom of the inner wall of the box body 7, a threaded rod 9 is fixedly connected to the output end of the motor 8, a threaded block 10 is threadedly connected to the surface of the threaded rod 9, a lifting plate 11 is fixedly connected to both sides of the threaded block 10, a guide sleeve 12 is fixedly connected to the outer side of the lifting plate 11, a guide rod 13 is slidably connected to the inner cavity of the guide sleeve 12, the outer end of the guide rod 13 is fixedly connected to the inner wall of the box body 7, a lifting column 14 is fixedly connected to the top of the lifting plate 11, and the top of the lifting column 14 passes through the top of the box body 7 The force sensor body 3 is fixedly connected with an anti-overload support plate 15, the output end of the force sensor body 3 is unidirectionally electrically connected to the input end of the processor 6, and the output end of the processor 6 is unidirectionally electrically connected to the input end of the motor 8. The force sensor body 3 senses that the material is too heavy and exceeds the load, and the force sensor body 3 sends an instruction to the processor 6. After the processor 6 processes, the motor 8 is started, and the motor 8 starts to drive the threaded rod 9 to rotate. The rotation of the threaded rod 9 drives the threaded block 10 to move on the surface of the threaded rod 9 through the thread. The movement of the threaded block 10 drives the lifting plate 11 to move, and the movement of the lifting plate 11 drives the guide sleeve 12 to slide on the surface of the guide rod 13. The movement of the lifting plate 11 drives the lifting column 14 to rise and move. The lifting column 14 rises and drives the anti-overload support plate 15 and the buffer pad 21 to rise to support and protect the discharge table 4, prevent the force sensor body 3 from being overloaded, and also prevent the force sensor body 3 from being damaged, thereby achieving the advantage of overload protection for the force sensor.

[0020] Heat dissipation grooves 16 are provided on both sides of the protection box 5 , and dustproof nets 17 are fixedly connected to the inner walls of the heat dissipation grooves 16 .

[0021] Through the above technical solution, by providing the heat dissipation slot 16, the heat dissipation of the processor 6 is facilitated, and by providing the dustproof net 17, the inner cavity of the protection box 5 is dustproof.

[0022] The top end of the threaded rod 9 is sleeved with a bearing seat 18 , and the top of the bearing seat 18 is fixedly connected to the center of the top of the inner wall of the box body 7 .

[0023] Through the above technical solution, by providing the bearing seat 18, the threaded rod 9 is stabilized during rotation, thereby increasing the stability of the threaded rod 9 during rotation.

[0024] Guide grooves 19 are provided on both sides of the inner wall of the box body 7 , and a guide block 20 is slidably connected to the inner cavity of the guide groove 19 , and the inner side of the guide block 20 is fixedly connected to the outer side of the guide sleeve 12 .

[0025] Through the above technical solution, by providing the guide groove 19 and the guide block 20, the guide sleeve 12 and the threaded block 10 are stabilized during movement, thereby increasing the stability of the guide sleeve 12 and the threaded block 10 during movement.

[0026] A buffer pad 21 is bonded to the top of the anti-overload support plate 15 , and the material of the buffer pad 21 is buffer rubber.

[0027] Through the above technical solution, by providing the buffer pad 21, a buffer protection function is provided for the anti-overload support plate 15 and the discharge table 4, thereby preventing the anti-overload support plate 15 and the discharge table 4 from being damaged by collision.

[0028] Both sides of the top of the box body 7 are provided with through grooves, and the diameter of the inner cavity of the through groove is larger than the diameter of the lifting column 14 .

[0029] Through the above technical solution, by providing the through groove, the lifting column 14 is facilitated to be lifted and moved.

[0030] The working principle of the utility model is as follows: firstly, the material is placed on the top of the discharge platform 4, and the force sensor body 3 starts to weigh the material. The force sensor body 3 senses that the material is too heavy and exceeds the load, and the force sensor body 3 sends an instruction to the processor 6. After the processor 6 processes, the motor 8 is started, and the motor 8 starts to drive the threaded rod 9 to rotate in the inner cavity of the bearing seat 18. The rotation of the threaded rod 9 drives the threaded block 10 to move on the surface of the threaded rod 9 through the thread. The movement of the threaded block 10 drives the lifting plate 11 to move, and the movement of the lifting plate 11 drives the guide sleeve 12 to slide on the surface of the guide rod 13. The movement of the guide sleeve 12 drives the guide block 20 to slide in the inner cavity of the guide groove 19. The movement of the lifting plate 11 drives the lifting column 14 to rise and move. The lifting column 14 rises and drives the anti-overload support plate 15 and the buffer pad 21 to rise to support the discharge platform 4, so as to prevent the force sensor body 3 from being overloaded, and also prevent the force sensor body 3 from being damaged, thereby achieving the advantage of overload protection for the force sensor.

[0031] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An overload-proof force sensor, comprising a mounting plate (1), characterized in that: The four corners of the top of the mounting plate (1) are provided with mounting holes (2); a force sensor body (3) is fixedly mounted at the center of the top of the mounting plate (1); a material unloading platform (4) is fixedly mounted on the top of the force sensor body (3); a protection box (5) is fixedly connected to the front of the force sensor body (3); a processor (6) is fixedly connected to the bottom of the inner wall of the protection box (5); both sides of the force sensor body (3) are fixedly connected to a box body (7); a motor (8) is fixedly connected to the center of the bottom of the inner wall of the box body (7); a threaded rod (9) is fixedly connected to the output end of the motor (8); and a threaded block (1) is threadedly connected to the surface of the threaded rod (9). 0), both sides of the threaded block (10) are fixedly connected to a lifting plate (11), the outer side of the lifting plate (11) is fixedly connected to a guide sleeve (12), the inner cavity of the guide sleeve (12) is slidably connected to a guide rod (13), the outer end of the guide rod (13) is fixedly connected to the inner wall of the box body (7), the top of the lifting plate (11) is fixedly connected to a lifting column (14), the top of the lifting column (14) penetrates to the top of the box body (7) and is fixedly connected to an anti-overload support plate (15), the output end of the force sensor body (3) is unidirectionally electrically connected to the input end of the processor (6), and the output end of the processor (6) is unidirectionally electrically connected to the input end of the motor (8).

2. The overload-proof force sensor according to claim 1, characterized in that: Both sides of the protection box (5) are provided with heat dissipation grooves (16), and the inner walls of the heat dissipation grooves (16) are fixedly connected with dustproof nets (17).

3. The overload-proof force sensor according to claim 1, characterized in that: A bearing seat (18) is sleeved on the top end of the threaded rod (9), and the top of the bearing seat (18) is fixedly connected to the center of the top of the inner wall of the box body (7).

4. The overload-proof force sensor according to claim 1, characterized in that: Guide grooves (19) are provided on both sides of the inner wall of the box body (7), the inner cavity of the guide groove (19) is slidably connected to a guide block (20), and the inner side of the guide block (20) is fixedly connected to the outer side of the guide sleeve (12).

5. The overload-proof force sensor according to claim 1, characterized in that: A buffer pad (21) is bonded and connected to the top of the anti-overload support plate (15), and the buffer pad (21) is made of buffer rubber.

6. The overload-proof force sensor according to claim 1, characterized in that: Both sides of the top of the box body (7) are provided with through grooves, and the diameter of the inner cavity of the through groove is greater than the diameter of the lifting column (14).

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