Pulley sensor

Abstract

The utility model discloses a pulley sensor, and particularly relates to the technical field of pulley sensors, which comprises a pulley sensor main body. The pulley sensor main body comprises a rotating wheel, a fixed seat, a rolling bearing, a printed circuit board, a tooth anti-dazzling screen, a photoelectric coupler and an input and output cable, the rotating wheel is sleeved outside the fixed seat, and the rotating wheel is movably connected with the fixed seat through the rolling bearing; the printed circuit board is installed on the side, close to the rotating wheel, of the fixing base through bolts. According to the utility model, the pulley sensor main body is designed by adopting an integrated structure, a stay wire box body of a traditional stay wire rope sensor can be avoided, so that the pulley sensor can be suitable for a narrow and compact installation environment, and because the width of the groove is 9mm, the rotating wheel can be used for installing a flexible steel wire rope with a diameter of 0.6-8mm and a specification which is expected at present; and the application range of the device can be expanded.

Description

Technical Field

[0001] The utility model relates to the technical field of pulley sensors, in particular to a pulley sensor. Background Art

[0002] In tower cranes with no dead ends in the hook rope, crawler cranes with single-rate working conditions, mine hoists, bridge rope tension monitoring, cable tension monitoring, anchor machines and other equipment, it is necessary to test the tension of the wire rope, especially the dynamic tension measurement during use.

[0003] However, the existing pulley sensor is large in size and also has a wire box, which causes the equipment to occupy a large space and is inconvenient to install and disassemble, which easily increases the difficulty of the disassembly and installation operations for the staff. Utility Model Content

[0004] In order to overcome the above-mentioned defects of the prior art, the utility model provides a pulley sensor. By adopting an integrated structural design of the pulley sensor body, the pulley box of the traditional pull rope sensor can be avoided, so that the utility model can be suitable for narrow and compact installation environments. Because the width of the groove is 9mm, the rotating wheel can be installed with any specification of soft steel wire rope with a diameter in the range of 0.6-8mm, which can expand the scope of application of the utility model to solve the problems arising from the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a pulley sensor, comprising a pulley sensor body;

[0006] The pulley sensor body includes a rotating wheel, a fixing seat, a rolling bearing, a printed circuit board, a 32-tooth shading sheet, a photoelectric coupler and an input and output cable. The rotating wheel is sleeved outside the fixing seat. The rotating wheel and the fixing seat are movably connected through a rolling bearing. The printed circuit board is installed on a side of the fixing seat close to the rotating wheel through bolts. The photoelectric coupler is installed on a side of the printed circuit board close to the rotating wheel.

[0007] The 32-tooth shading sheet is installed on the side of the rotating wheel close to the fixed seat, the photoelectric coupler is sleeved outside the 32-tooth shading sheet, and the input and output cables are installed on the fixed seat;

[0008] A groove is provided on the outside of the rotating wheel, and the width of the groove is 9 mm.

[0009] In a preferred embodiment, a fastening bolt is provided on one side of the fixing seat close to the rotating wheel, and the fastening bolt passes through the fixing seat and extends to the outside of the fixing seat. The provision of the fastening bolt can facilitate the staff to install the pulley sensor body in a suitable position, thereby improving the convenience for the staff to install the pulley sensor body, and the provision of a single fastening bolt can simplify the installation steps for the staff.

[0010] In a preferred embodiment, a mounting plate is provided on the side of the rotating wheel away from the fixed seat, and a mounting hole is formed through the inside of the mounting plate; a mounting groove is provided on the side of the rotating wheel close to the mounting hole, and the mounting hole on the mounting plate facilitates the staff to install the mounting bolts into the inside of the mounting groove through the mounting hole.

[0011] In a preferred embodiment, a retaining ring is provided on the outside of the mounting plate, and the retaining ring extends to the outside of the rotating wheel at one end away from the mounting plate. The setting of the retaining ring facilitates shielding of the grooves on the rotating wheel to prevent foreign impurities or particles from adhering to the inside of unused grooves and affecting the installation of subsequent equipment.

[0012] In a preferred embodiment, a buffer ring is provided on the outside of the retaining ring. The buffer ring is made of rubber material. The buffer ring can buffer external collision impacts to avoid damage to the retaining ring caused by excessive impact, thereby ensuring the use effect of the retaining ring.

[0013] In a preferred embodiment, a mounting bolt is provided on the side of the mounting plate away from the rotating wheel, the mounting bolt passes through the mounting hole and extends into the interior of the mounting groove, the mounting bolt is threadedly connected to the mounting groove, and the mounting plate can be fixed to the outside of the rotating wheel through the threaded connection between the mounting bolt and the mounting groove, thereby ensuring the stability of the mounting plate.

[0014] Technical effects and advantages of the utility model:

[0015] 1. By adopting an integrated structure to design the pulley sensor body, the pull-wire box of the traditional pull-wire sensor can be avoided, so that the utility model can be applied to a narrow and compact installation environment. In addition, because the width of the groove is 9mm, the rotating wheel can be installed with any soft steel wire rope with a diameter within the range of 0.6-8mm, which can expand the scope of application of the utility model;

[0016] 2. The setting of the retaining ring makes it easy to shield the groove on the rotating wheel to prevent foreign matter or particles from adhering to the unused groove and affecting the installation of subsequent equipment. At the same time, the threaded connection between the mounting bolts and the mounting grooves makes it easy for the staff to operate the mounting bolts to install and disassemble the mounting plate and the retaining ring, reducing the difficulty of disassembling the retaining ring. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a cross-sectional view of the rotating wheel of the utility model;

[0018] Figure 2 It is a cross-sectional view of the fixing seat of the utility model;

[0019] Figure 3 It is a schematic diagram of the retaining ring of the utility model after adjustment;

[0020] Figure 4 It is a side view of the fixing seat of the utility model;

[0021] Figure 5 It is the front view of the retaining ring of the utility model.

[0022] The accompanying drawings are marked as follows: 1. rotating wheel; 2. fixing seat; 3. rolling bearing; 4. printed circuit board; 5. 32-tooth shading sheet; 6. photoelectric coupler; 7. input and output cables; 8. groove; 9. fastening bolt; 10. mounting plate; 11. mounting hole; 12. mounting groove; 13. retaining ring; 14. buffer ring; 15. mounting bolt. DETAILED DESCRIPTION

[0023] 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.

[0024] Refer to the instruction manual Figure 1-5 ,The utility model provides a pulley sensor, comprising a pulley sensor body;

[0025] In order to simplify the equipment, reduce the space occupied, and facilitate portability and installation, such as Figure 1-4As shown, the pulley sensor body includes a rotating wheel 1, a fixed seat 2, a rolling bearing 3, a printed circuit board 4, a 32-tooth shading sheet 5, a photoelectric coupler 6 and an input and output cable 7. The rotating wheel 1 is sleeved outside the fixed seat 2, and the rotating wheel 1 and the fixed seat 2 are movably connected through the rolling bearing 3. The printed circuit board 4 is installed on the side of the fixed seat 2 close to the rotating wheel 1 through bolts, and the photoelectric coupler 6 is installed on the side of the printed circuit board 4 close to the rotating wheel 1; the 32-tooth shading sheet 5 is installed on the side of the rotating wheel 1 close to the fixed seat 2, and the photoelectric coupler The device 6 is sleeved on the outside of the 32-tooth shading sheet 5, and the input and output cables 7 are installed on the fixed seat 2; a groove 8 is opened on the outside of the rotating wheel 1, and the width of the groove 8 is 9 mm. A fastening bolt 9 is provided on the side of the fixed seat 2 close to the rotating wheel 1, and the fastening bolt 9 penetrates the fixed seat 2 and extends to the outside of the fixed seat 2. Through the setting of the fastening bolt 9, it is convenient for the staff to install the pulley sensor body in a suitable position, which improves the convenience of the staff to install the pulley sensor body, and the setting of a single fastening bolt 9 can simplify the installation steps of the staff.

[0026] Specifically, when the rotating wheel 1 rotates, the internal 32-tooth shading sheet 5 is driven to rotate at the same time, causing the output end of the photoelectric coupler 6 on the printed circuit board 4 to generate a voltage signal change, which is then processed by the signal amplifier and output by the NPN open collector circuit. The output is sent to the vehicle processor by the output end of the input-output cable 7. The overall structure is simple and easy to use. It adopts an integrated structural design and does not have a pull box body of a traditional pull rope sensor, so that the utility model can be used in a narrow and compact installation environment. Because the width of the groove 8 is 9mm, the rotating wheel 1 can be installed with any existing soft steel wire rope with a diameter in the range of 0.6-8mm, which can expand the scope of application of the utility model.

[0027] In order to facilitate the protection of the rotating wheel 1, as Figure 1-5 As shown, a mounting plate 10 is provided on the side of the rotating wheel 1 away from the fixing seat 2, and a mounting hole 11 is provided inside the mounting plate 10; a mounting groove 12 is provided on the side of the rotating wheel 1 close to the mounting hole 11, and through the mounting hole 11 on the mounting plate 10, it is convenient for the staff to install the mounting bolt 15 into the mounting groove 12 through the mounting hole 11, and a retaining ring 13 is sleeved on the outside of the mounting plate 10, and one end of the retaining ring 13 away from the mounting plate 10 extends to the outside of the rotating wheel 1, and through the setting of the retaining ring 13, it is convenient to shield the groove 8 on the rotating wheel 1, so as to prevent foreign impurities or particles from adhering to the unused groove 8 and affecting the installation of subsequent equipment;

[0028] Moreover, a buffer ring 14 is provided on the outside of the retaining ring 13, and the buffer ring 14 is made of rubber material. Through the setting of the buffer ring 14, the external collision impact can be buffered to avoid damage to the retaining ring 13 caused by excessive impact, thereby ensuring the use effect of the retaining ring 13. The side of the mounting plate 10 away from the rotating wheel 1 is provided with a mounting bolt 15, and the mounting bolt 15 passes through the mounting hole 11 and extends to the inside of the mounting groove 12. The mounting bolt 15 is threadedly connected to the mounting groove 12. Through the threaded connection between the mounting bolt 15 and the mounting groove 12, the mounting plate 10 can be fixed to the outside of the rotating wheel 1 to ensure the stability of the mounting plate 10.

[0029] It is worth mentioning that in the utility model, the setting of the retaining ring 13 facilitates the shielding of the groove 8 on the rotating wheel 1 to prevent foreign impurities or particles from adhering to the unused groove 8 and affecting the installation of subsequent equipment. At the same time, through the threaded connection between the mounting bolts 15 and the mounting groove 12, it is convenient for the staff to operate the mounting bolts 15 to install and disassemble the mounting plate 10 and the retaining ring 13, thereby improving the convenience for the staff to disassemble and assemble the retaining ring 13.

[0030] Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present utility model should be included in the protection scope of the present utility model.

Claims

1. A pulley sensor, characterized in that: A pulley sensor body is included; The pulley sensor body comprises a rotating wheel (1), a fixed seat (2), a rolling bearing (3), a printed circuit board (4), a 32-tooth shading sheet (5), a photoelectric coupler (6) and an input / output cable (7); the rotating wheel (1) is sleeved outside the fixed seat (2); the rotating wheel (1) and the fixed seat (2) are movably connected via the rolling bearing (3); the printed circuit board (4) is mounted on a side of the fixed seat (2) close to the rotating wheel (1) via bolts; and the photoelectric coupler (6) is mounted on a side of the printed circuit board (4) close to the rotating wheel (1); The 32-tooth shading sheet (5) is mounted on a side of the rotating wheel (1) close to the fixed seat (2), the photoelectric coupler (6) is sleeved on the outside of the 32-tooth shading sheet (5), and the input and output cables (7) are mounted on the fixed seat (2); The rotating wheel (1) is provided with a groove (8) on the outside, and the width of the groove (8) is 9 mm.

2. A pulley sensor according to claim 1, characterized in that: A fastening bolt (9) is provided on one side of the fixing seat (2) close to the rotating wheel (1), and the fastening bolt (9) passes through the fixing seat (2) and extends to the outside of the fixing seat (2).

3. A pulley sensor according to claim 1, characterized in that: A mounting plate (10) is provided on a side of the rotating wheel (1) away from the fixing seat (2), and a mounting hole (11) is provided through the inside of the mounting plate (10); A mounting groove (12) is provided on one side of the rotating wheel (1) close to the mounting hole (11).

4. A pulley sensor according to claim 3, characterized in that: The mounting plate (10) is sleeved with a retaining ring (13) on the outside, and one end of the retaining ring (13) away from the mounting plate (10) extends to the outside of the rotating wheel (1).

5. A pulley sensor according to claim 4, characterized in that: A buffer ring (14) is sleeved on the outside of the retaining ring (13), and the buffer ring (14) is made of rubber material.

6. A pulley sensor according to claim 3, characterized in that: A mounting bolt (15) is provided on a side of the mounting plate (10) away from the rotating wheel (1); the mounting bolt (15) passes through the mounting hole (11) and extends into the interior of the mounting groove (12); the mounting bolt (15) is threadedly connected to the mounting groove (12).

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