Elastic upper pressure type speed sensor

Abstract

This utility model discloses an elastic pressure-type speed sensor, relating to the field of speed sensor technology. It includes a speed sensor body, a connecting plate at the bottom of the speed sensor body, a U-shaped plate fixedly connected to the bottom of the connecting plate, and a threaded guide rod fixedly connected to the bottom of the speed sensor body. The bottom end of the threaded guide rod extends through the outside of the U-shaped plate and is screwed to a first fastening nut. The advantages of this utility model are: the spring and threaded guide rod allow the speed sensor body to move up and down synchronously with the fluctuations of the conveyor belt during operation, thus facilitating better contact between the speed measuring rollers at both ends of the speed sensor body and the conveyor belt; the dustproof component prevents external dust and other impurities from accumulating and covering the outside of the speed sensor body's terminals during long-term detection work, improving the dustproof performance of the speed sensor body.

Description

Technical Field

[0001] This utility model relates to the field of speed sensor technology, and in particular to an elastic pressure-type speed sensor. Background Technology

[0002] A speed sensor is an instrument that measures the speed of an object. As one of the main components of a belt scale, its function is to measure the speed of the conveyor belt of a belt conveyor. When the conveyor belt of the belt scale comes into contact with the speed sensor, the speed measuring rollers at both ends of the speed sensor will rotate under the action of friction, thereby converting the motion state of the conveyor belt of the belt scale into quantifiable data for the staff to view.

[0003] When existing speed sensors are in use, the terminal on one side of the speed sensor used to connect to the data cable is usually exposed to the external environment. Due to the lack of an effective dustproof mechanism for the terminal, dust easily accumulates and covers the terminal when the speed sensor is working in dusty environments such as coal transportation, which has a certain impact on the normal operation of the speed sensor. Utility Model Content

[0004] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the present invention.

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution: An elastic pressure-type speed sensor includes a speed sensor body, a connecting plate below the speed sensor body, a U-shaped plate fixedly connected to the bottom of the connecting plate, a threaded guide rod fixedly connected to the bottom of the speed sensor body, the bottom end of the threaded guide rod extending through to the outside of the U-shaped plate and being screwed to a first fastening nut, and a spring coaxially provided around the threaded guide rod, the spring being connected to the speed sensor body and the connecting plate respectively. The speed sensor body has a terminal block on one side. Inside the terminal block is a connecting wire for powering the speed sensor body. A fixing cylinder is fixedly installed on the outside of the terminal block. Inside the fixing cylinder is a dustproof component for reducing the impact of external dust on the terminal block. A limiting card is provided on the outside of the connecting wire. At least three positioning seats are provided on the outside of the limiting card. One side of the positioning seat is connected to the limiting card.

[0006] As a preferred embodiment of the elastic pressure-type speed sensor of this utility model, both ends of the connecting plate are provided with positioning bolts, and the bottom end of the positioning bolt extends through to the outside of the connecting plate and is screwed with a second fastening nut.

[0007] In a preferred embodiment of the elastic pressure-type speed sensor of this utility model, a support base is vertically installed on the side of the speed sensor body away from the wiring terminal, and a sliding column is fixedly installed inside the support base, with the bottom end of the sliding column slidably connected to the connecting plate.

[0008] In a preferred embodiment of the elastic pressure-type speed sensor of this utility model, the limiting card has a slot inside that corresponds to the connecting wire, and the connecting wire is located inside the slot.

[0009] In a preferred embodiment of the elastic pressure-type speed sensor of this utility model, the dustproof component includes a telescopic dustproof sleeve disposed inside the fixed cylinder, an annular seat being fixedly connected to one end of the telescopic dustproof sleeve near the positioning seat, and the other end of the telescopic dustproof sleeve being connected to the speed sensor body.

[0010] In a preferred embodiment of the elastic pressure-type speed sensor of this utility model, the annular seat has a first annular groove on the side near the fixed cylinder, and a first magnetic ring is fixedly connected inside the first annular groove. The fixed cylinder has a second annular groove on the side near the annular seat, and a second magnetic ring is fixedly connected inside the second annular groove.

[0011] In a preferred embodiment of the elastic pressure-type speed sensor of this utility model, each positioning seat is provided with an L-shaped plate below it, one end of the L-shaped plate is connected to the annular seat, and the other end of the L-shaped plate is provided with a first groove.

[0012] In a preferred embodiment of the elastic pressure-type speed sensor of this utility model, the first groove is provided with a threaded post, and one end of the threaded post is rotatably connected to the first groove through a rotating shaft.

[0013] In a preferred embodiment of the elastic pressure-type speed sensor of this utility model, the positioning seat has a second groove inside, and the other end of the threaded column extends through the outside of the second groove and is fixedly connected to a stop block.

[0014] In a preferred embodiment of the elastic pressure-type speed sensor of this utility model, a third fastening nut is helically connected to the outer side of the threaded column, and one side of the third fastening nut is in contact with the positioning seat.

[0015] The beneficial effects of this utility model are as follows: the spring and threaded guide rod enable the speed sensor body to move up and down synchronously with the fluctuation of the conveyor belt being detected during operation, which facilitates better contact between the speed measuring rollers at both ends of the speed sensor body and the conveyor belt; the dustproof component facilitates protection of the speed sensor body's wiring terminals from the outside, thereby preventing external dust and other impurities from accumulating and covering the outside of the speed sensor body's wiring terminals during long-term detection work, which helps to improve the dustproof performance of the speed sensor body. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Among them: Figure 1 This is a structural diagram of an elastic pressure-type speed sensor.

[0017] Figure 2 This is another perspective view of the overall structure of the elastic pressure-type speed sensor.

[0018] Figure 3 This is a structural diagram of the speed sensor body of an elastic pressure-type speed sensor.

[0019] Figure 4 This is a structural diagram of the dustproof component of an elastic pressure-type speed sensor.

[0020] Figure 5 This is a detailed structural diagram of the L-shaped plate of the elastic pressure-type speed sensor.

[0021] Figure 6 This is a structural diagram of the limit card for an elastic pressure-type speed sensor.

[0022] The following are the labeling elements in the diagram: 1. Speed ​​sensor body; 2. Connecting plate; 3. U-shaped plate; 4. Threaded guide rod; 5. First fastening nut; 6. Positioning bolt; 7. Second fastening nut; 8. Spring; 9. Support seat; 10. Sliding column; 11. Terminal; 12. Connecting wire; 13. Fixing cylinder; 14. Limiting clip; 15. Dustproof assembly; 151. Telescopic dustproof sleeve; 152. Annular seat; 16. First annular groove; 17. First magnetic ring; 18. Second annular groove; 19. Second magnetic ring; 20. L-shaped plate; 21. First groove; 22. Threaded column; 23. Positioning seat; 24. Second groove; 25. Third fastening nut; 26. Stop block; 27. Slot. Detailed Implementation

[0023] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0024] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0025] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that excludes other embodiments.

[0026] Example 1: Reference Figures 1-6 This is the first embodiment of the present invention. This embodiment provides an elastic pressure-type speed sensor, including a speed sensor body 1, a connecting plate 2 below the speed sensor body 1, a U-shaped plate 3 fixedly connected to the bottom of the connecting plate 2, a threaded guide rod 4 fixedly connected to the bottom of the speed sensor body 1, the bottom end of the threaded guide rod 4 passing through the outside of the U-shaped plate 3 and being screwed to a first fastening nut 5, and a spring 8 coaxially provided around the threaded guide rod 4, the spring 8 being connected to the speed sensor body 1 and the connecting plate 2 respectively.

[0027] It should be noted that the speed sensor body 1 in this utility model is a speed sensor of model SA-205. By setting the spring 8, the speed sensor body 1 can move up and down synchronously with the fluctuation of the conveyor belt being detected during the operation. This is beneficial for the speed measuring rollers at both ends of the speed sensor body 1 to make better contact with the conveyor belt. In actual use, in order to ensure that the rollers at both ends of the speed sensor body 1 can maintain contact with the conveyor belt, the spring 8 needs to be pre-compressed by about 20mm after installation.

[0028] A terminal 11 is provided on one side of the speed sensor body 1. The terminal 11 has a connecting wire 12 for powering the speed sensor body 1. A fixing cylinder 13 is fixedly installed on the outside of the terminal 11. The fixing cylinder 13 has a dustproof component 15 for reducing the impact of external dust on the terminal 11. A limiting card 14 is provided on the outside of the connecting wire 12. At least three positioning seats 23 are provided on the outside of the limiting card 14. One side of the positioning seat 23 is connected to the limiting card 14.

[0029] The connecting wire 12 is used to connect to the terminal 11 by thread and to continuously provide power to the speed sensor body 1, thereby ensuring the normal operation of the speed sensor body 1. By setting the dustproof component 15, external dust and other impurities can be prevented from accumulating and covering the outside of the terminal 11 of the speed sensor body 1 during long-term detection work, thereby improving the dustproof performance of the speed sensor body 1.

[0030] Example 2: Reference Figures 2-4 This is the second embodiment of the present invention, which is based on the previous embodiment.

[0031] Specifically, both ends of the connecting plate 2 are provided with positioning bolts 6, and the bottom end of the positioning bolts 6 extends through to the outside of the connecting plate 2 and is screwed with a second fastening nut 7.

[0032] By setting the positioning bolt 6 and the second fastening nut 7, this utility model can be easily positioned and installed on the belt scale frame, thereby facilitating the subsequent testing of the speed sensor body 1.

[0033] Specifically, a support base 9 is vertically mounted on the side of the speed sensor body 1 away from the wiring terminal 11. A sliding column 10 is fixedly installed inside the support base 9, and the bottom end of the sliding column 10 is slidably connected to the connecting plate 2.

[0034] By setting the support base 9 and the sliding column 10, the speed sensor body 1 can be supported from the side away from the terminal 11. When the speed sensor body 1 moves up and down synchronously with the fluctuation of the detected conveyor belt, the speed sensor body 1 will drive the sliding column 10 to move up and down inside the connecting plate 2, which helps to improve the working stability of the speed sensor body 1.

[0035] Specifically, the limiting card 14 has a slot 27 inside that corresponds to the connecting wire 12, and the connecting wire 12 is located inside the slot 27.

[0036] By setting the slot 27, it is easy for the staff to attach the limiting card 14 to the outside of the connecting wire 12, which facilitates the subsequent dustproofing of the terminal 11. It should be noted that the beginning of the slot 27 is a long strip channel with a width slightly smaller than the diameter of the connecting wire 12, while the end of the slot 27 is a circular hole coaxial with the limiting card 14 with a diameter slightly larger than the diameter of the connecting wire 12. This setting makes it easier for the limiting card 14 to be attached to the outside of the connecting wire 12. At the same time, the limiting card 14 is easy to manufacture and operate, further improving its practicality.

[0037] Example 3: Reference Figures 3-6 This is the third embodiment of the present invention, which is based on the first two embodiments.

[0038] Specifically, the dustproof component 15 includes a telescopic dustproof sleeve 151 disposed inside the fixed cylinder 13. One end of the telescopic dustproof sleeve 151 near the positioning seat 23 is fixedly connected to an annular seat 152, and the other end of the telescopic dustproof sleeve 151 is connected to the speed sensor body 1.

[0039] By providing a telescopic dust cover 151, it is easy to protect the speed sensor body 1 from the outside of the wiring terminal 11. This prevents external dust and other impurities from accumulating and covering the outside of the wiring terminal 11 of the speed sensor body 1 during long-term detection work, which helps to improve the dustproof performance of the speed sensor body 1.

[0040] Specifically, the annular seat 152 has a first annular groove 16 on the side near the fixed cylinder 13, and a first magnetic ring 17 is fixedly connected inside the first annular groove 16. The fixed cylinder 13 has a second annular groove 18 on the side near the annular seat 152, and a second magnetic ring 19 is fixedly connected inside the second annular groove 18.

[0041] When it is necessary to connect the connecting wire 12 to the terminal 11, the first magnetic ring 17 and the second magnetic ring 19 can be used to position the annular seat 152 on the fixed cylinder 13. At this time, the terminal 11 port is unobstructed, and the staff can easily complete the connection between the connecting wire 12 and the terminal 11.

[0042] Specifically, each positioning seat 23 is provided with an L-shaped plate 20 below it. One end of the L-shaped plate 20 is connected to the annular seat 152, and the other end of the L-shaped plate 20 is provided with a first groove 21. The first groove 21 is provided with a threaded post 22 inside. One end of the threaded post 22 is rotatably connected to the first groove 21 through a rotating shaft. The positioning seat 23 is provided with a second groove 24 inside. The other end of the threaded post 22 passes through to the outside of the second groove 24 and is fixedly connected to a stop block 26. The outside of the threaded post 22 is spirally connected with a third fastening nut 25. One side of the third fastening nut 25 is in contact with the positioning seat 23.

[0043] After the connecting wire 12 is connected to the terminal 11, the third fastening nut 25 on the outside of the threaded post 22 can be tightened so that one side of the third fastening nut 25 is in tight contact with the positioning seat 23. At this time, there is no space for the threaded post 22 to swing between the third fastening nut 25 and the positioning seat 23. The contact between the limiting card 14 and the ring seat 152 allows the telescopic dust cover 151 to fully extend. Then, the telescopic dust cover 151, together with the limiting card 14, completes the dust protection of the outside of the terminal 11. This facilitates the quick adjustment of the dustproof component 15 and improves its practicality.

[0044] In use, the operator first uses the positioning bolt 6 and the second fastening nut 7 to position and install the present invention on the belt scale frame. Then, the spring 8 and the threaded guide rod 4 cause the speed sensor body 1 to move up and down synchronously with the fluctuation of the conveyor belt being detected during operation. This facilitates better contact between the speed measuring rollers at both ends of the speed sensor body 1 and the conveyor belt. The operator can intuitively understand the movement status of the conveyor belt through the detection data of the speed sensor body 1. During the detection process of the speed sensor body 1, the dustproof component 15 can easily protect the wiring terminal 11 of the speed sensor body 1 from the outside. This can prevent external dust and other impurities from accumulating and covering the outside of the wiring terminal 11 of the speed sensor body 1 during long-term detection work, which helps to improve the dustproof performance of the speed sensor body 1.

[0045] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. An elastic overpressure type speed sensor comprising a speed sensor body (1), characterized in that: The lower part of the speed sensor body (1) is provided with a connecting plate (2), the bottom of the connecting plate (2) is fixedly connected with a U-shaped plate (3), the bottom of the speed sensor body (1) is fixedly connected with a threaded guide rod (4), the bottom end of the threaded guide rod (4) penetrates to the outside of the U-shaped plate (3) and is screw-connected with a first fastening nut (5), the periphery of the threaded guide rod (4) is coaxially provided with a spring (8), and the spring (8) is connected with the speed sensor body (1) and the connecting plate (2) respectively. One side of the speed sensor body (1) is provided with a wiring terminal (11), the inside of the wiring terminal (11) is provided with a connecting wire (12) for supplying power to the speed sensor body (1), the outside of the wiring terminal (11) is fixedly provided with a fixed cylinder (13), the inside of the fixed cylinder (13) is provided with a dustproof assembly (15) for reducing the influence of external dust on the wiring terminal (11), the outside of the connecting wire (12) is provided with a limiting card (14), the outside of the limiting card (14) is provided with not less than three positioning seats (23), and one side of the positioning seat (23) is connected with the limiting card (14).

2. The resilient overpressure velocity transducer of claim 1 wherein: Both ends of the connecting plate (2) are provided with positioning bolts (6), the bottom end of the positioning bolt (6) penetrates to the outside of the connecting plate (2) and is screw-connected with a second fastening nut (7).

3. The resilient overpressure velocity transducer of claim 1 wherein: The side of the speed sensor body (1) away from the wiring terminal (11) is vertically provided with a supporting seat (9), the inside of the supporting seat (9) is fixedly provided with a sliding column (10), and the bottom end of the sliding column (10) is slidingly connected with the connecting plate (2).

4. The overpressure elastic velocity transducer of claim 1, wherein: The inside of the limiting card (14) is provided with a clamping groove (27) corresponding to the connecting wire (12), and the connecting wire (12) is located in the inside of the clamping groove (27).

5. The overpressure elastic velocity transducer of claim 1, wherein: The dustproof assembly (15) comprises a telescopic dustproof sleeve (151) arranged in the inside of the fixed cylinder (13), one end of the telescopic dustproof sleeve (151) close to the positioning seat (23) is fixedly connected with an annular seat (152), and the other end of the telescopic dustproof sleeve (151) is connected with the speed sensor body (1).

6. The overpressure elastic velocity transducer of claim 5, wherein: The side of the annular seat (152) close to the fixed cylinder (13) is provided with a first annular groove (16), the inside of the first annular groove (16) is fixedly connected with a first magnetic attraction ring (17), the side of the fixed cylinder (13) close to the annular seat (152) is provided with a second annular groove (18), and the inside of the second annular groove (18) is fixedly connected with a second magnetic attraction ring (19).

7. The resilient overpressure velocity transducer of claim 5 wherein: The lower part of each positioning seat (23) is provided with an L-shaped plate (20), one end of the L-shaped plate (20) is connected with the annular seat (152), and the other end of the L-shaped plate (20) is provided with a first recess (21).

8. The resilient overpressure velocity transducer of claim 7 wherein: The inside of the first recess (21) is provided with a threaded column (22), and one end of the threaded column (22) is rotationally connected with the first recess (21) through a rotating shaft.

9. The resilient overpressure velocity transducer of claim 8 wherein: The inside of the positioning seat (23) is provided with a second groove (24), and the other end of the threaded column (22) penetrates to the outside of the second groove (24) and is fixedly connected with a stop block (26).

10. The over center flexure velocity sensor of claim 9, wherein: The outside of the threaded column (22) is spirally connected with a third fastening nut (25), and one side of the third fastening nut (25) is in contact with the positioning seat (23).

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