Novel pull rope type length measuring sensor capable of transmitting signal and power supply

Abstract

The utility model discloses a novel pull rope type length measuring sensor capable of transmitting a signal and a power supply, and the length measuring sensor comprises a protective housing assembly, a transmission shaft, a first bearing, a second bearing, a potentiometer assembly, and a conductive slip ring. A first inner layer plate and a second inner layer plate are sequentially arranged on the surface of the upper portion of the first shell base from bottom to top, the first inner layer plate and the second inner layer plate are sleeved with a first protective shell, and the first protective shell, the first inner layer plate and the second inner layer plate are fixedly installed through bolts and fixedly installed on the surface of the upper portion of the first shell base. In order to achieve return rotation of the transmission shaft, a coil spring is arranged between the first inner-layer plate and the second inner-layer plate, one side of the coil spring is installed on the first inner-layer plate, the middle of the coil spring is fixedly installed on the transmission shaft, and return rotation driving of the transmission shaft is achieved. In order to realize wire arrangement regularity of the length measuring cable on the reel, a wire guide wheel structure is additionally arranged at an outlet of the length measuring sensor so as to restrain wire arrangement disorder caused by vibration of the length measuring cable.

Description

Technical Field

[0001] The utility model relates to the technical field of a draw-rope type length measuring sensor capable of transmitting signals and power, in particular to a novel draw-rope type length measuring sensor capable of transmitting signals and power. Background Art

[0002] Existing technology:

[0003] Current drawstring length measurement sensors utilize a wire rope that stretches and retracts, driving a reel that drives the length measurement unit to detect distance. Some equipment requires signal and power transmission from the fixed end of the sensor to the mobile end. Current sensor structures are not sufficient for these applications. Therefore, a drawstring length measurement sensor with both signal and power transmission is needed to meet customer requirements.

[0004] Therefore, it is necessary to provide a new type of draw-rope length measuring sensor that can transmit signals and power. Utility Model Content

[0005] In response to the problems existing in the above-mentioned prior art, the utility model provides a new type of pull-rope length measuring sensor that can transmit signals and power, with the aim of solving the problems of signal transmission of the length measuring sensor, solving the problem of cables with high tensile strength and low ductility in the length measuring sensor, and solving the problem of neat cable arrangement on the reel.

[0006] In order to achieve the above-mentioned purpose, the utility model is realized through the following technical solutions: a novel pull-rope length measuring sensor capable of transmitting signals and power supply, the length measuring sensor comprising a protective shell assembly, a transmission shaft, a bearing 1, a bearing 2, a potentiometer assembly, and a conductive slip ring, the protective shell assembly comprising a shell base 1, the upper surface of the shell base 1 being sequentially arranged from bottom to top as an inner layer plate 1 and an inner layer plate 2, the outer portion of the inner layer plate 1 and the inner layer plate 2 being sleeved with a protective shell 1, the protective shell 1, the inner layer plate 1 and the inner layer plate 2 being fixedly installed by bolts, and being fixedly installed on the upper surface of the shell base 1, a coil spring being arranged in the space between the inner layer plate 1 and the inner layer plate 2, the transmission shaft being rotatably installed through the middle portion of the shell base 1, the top end of the transmission shaft sequentially passing through the shell base 1, the inner layer plate 1 and the inner layer plate 2 Plate one and inner plate two are connected with the conductive slip ring to detect the rotation speed of the transmission shaft through the conductive slip ring and transmit the detection information through the transmission port of the length measuring sensor. The conductive slip ring is fixed to bracket two through bracket one, and bracket two is fixed on inner plate two. The transmission shaft is fixed to inner plate two through bearing two. A driving gear is provided at the connection between the transmission shaft and the conductive slip ring. A driven gear is meshed with one side of the driving gear. A potentiometer assembly is installed at the bottom of the driven gear, and the potentiometer assembly is installed on bracket two. The transmission shaft is located between inner plate one and inner plate two, and the surface is fixed with a coil spring. A reel is fixed to the transmission shaft at the bottom of the shell base one, and a length measuring cable is wound around the reel. A wire wheel structure is added at the outlet of the length measuring sensor to restrain the vibration of the length measuring cable and cause wiring disorder.

[0007] Preferably, the wire pulley structure consists of a guide wheel, a support shaft, and a fixed frame. The fixed frame is arranged on one side of the outlet of the length measuring sensor. Two support shafts are installed in parallel on the fixed frame. The guide wheel is installed on one of the support shafts. The length measuring cable passes through the guide wheel, and the vibration of the length measuring cable is limited by the guide wheel and the other support shaft.

[0008] Preferably, the length measuring cable is configured to include, from outside to inside, an outer sheath, a shielding mesh, Kevlar fiber, and a conductor.

[0009] In summary, the utility model provides a new type of rope-type length measuring sensor that can transmit signals and power supply. A driving gear is provided on the top of the transmission shaft, and a driven gear is meshed with one side of the driving gear. A potentiometer assembly is installed at the bottom of the driven gear. The potentiometer assembly is installed on bracket two, and bracket two is fixed on inner layer plate two to achieve fixed support for the potentiometer assembly. At the same time, the rotation of the transmission shaft is recorded and the unit distance detection is calculated through the potentiometer assembly; a bracket one is provided on one side of bracket two, and bracket one is used to support the installation of a conductive slip ring to achieve transmission shaft speed detection and output unit distance detection data.

[0010] To achieve the return rotation of the drive shaft, a coil spring is installed between inner plates 1 and 2. One side of the coil spring is mounted on inner plate 1, while the middle portion is fixed to the drive shaft, thus driving the return rotation of the drive shaft. To ensure the neat arrangement of the length measurement cable on the reel, a wire pulley structure is added at the outlet of the length measurement sensor to prevent vibration of the length measurement cable and cause disorder in the arrangement of the cable. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 This is a schematic diagram of the structure of the drawstring length measuring sensor of the utility model;

[0012] Figure 2 This is a schematic diagram of the structure of the wire pulley of the utility model;

[0013] Figure 3 This is a schematic diagram of the length measuring cable structure of the utility model;

[0014] Figure 4 This is a schematic structural diagram of bracket 1 and bracket 2 of the present utility model;

[0015] In the figure: housing base 1, length measuring cable 2, reel 3, transmission shaft 4, bearing 1 5, coil spring 6, bearing 2 7, drive gear 8, driven gear 9, conductive slip ring 10, potentiometer assembly 11, inner plate 1 31, inner plate 2 32, protective housing 1 33, bracket 2 34, bracket 1 35, guide wheel 21, support shaft 22, fixing frame 23, outer skin 351, shielding net 36, Kevlar fiber 37, conductor 38. DETAILED DESCRIPTION

[0016] The present invention will be further described below with reference to the accompanying drawings.

[0017] like Figures 1 to 4 As shown:

[0018] The utility model is a novel draw-rope length measuring sensor capable of transmitting signals and power supply. The length measuring sensor comprises a protective shell assembly, a transmission shaft 4, a bearing 1 5, a bearing 2 7, a potentiometer assembly 11, and a conductive slip ring 10. The protective shell assembly comprises a shell base 1, the upper surface of the shell base 1 is sequentially provided with an inner plate 1 31 and an inner plate 2 32 from bottom to top, the outer portion of the inner plate 1 31 and the inner plate 2 32 is sleeved with a protective shell 1 33, the protective shell 1 33, the inner plate 1 31, and the inner plate 2 32 are fixedly installed by bolts and fixedly installed on the upper surface of the shell base 1, a coil spring 6 is provided in the space between the inner plate 1 31 and the inner plate 2 32, the transmission shaft 4 is rotatably mounted in the middle of the shell base 1 through the bearing 1 5, and the top end of the transmission shaft 4 sequentially passes through the shell base 1, the inner plate 1 31, the inner plate 2 32 and the conductive slip ring. 10 is connected to detect the rotation speed of the transmission shaft 4 through the conductive slip ring 10 and to transmit the detection information through the delivery port of the length measuring sensor. The conductive slip ring 10 is fixedly installed with the bracket 2 34 through the bracket 1 35. The bracket 2 34 is fixed on the inner plate 2 32. A driving gear 8 is provided at the connection between the transmission shaft 4 and the conductive slip ring 10. A driven gear 9 is meshed with one side of the driving gear 8. A potentiometer assembly 11 is installed at the bottom of the driven gear 9. The potentiometer assembly 11 is installed on the bracket 2 34. The transmission shaft 4 is fixed to the inner plate 2 32 through the bearing 2 7. The transmission shaft 4 is located between the inner plate 1 31 and the inner plate 2 32 and is fixedly installed with the coil spring 6 on the surface. A reel 3 is fixedly installed on the transmission shaft 4 at the bottom of the shell base 1. The reel 3 is wound and installed with the length measuring cable 2. A wire wheel structure is added at the outlet of the length measuring sensor to restrain the vibration of the length measuring cable 2 and cause the wiring to be chaotic.

[0019] In order to solve the technical problems existing in the prior art, the technology adopted by the present patent is as follows: the bottom of the length measuring sensor is at least installed by the shell base 1, the top of the shell base 1 is sequentially arranged as the inner plate 1 31 and the inner plate 2 32, the outside of the inner plate 1 31 and the inner plate 2 32 are protected and installed by the protective shell 1 33, the inner plate 1 31, the inner plate 2 32 and the protective shell 1 33 are installed on the shell base 1 using common bolts, so as to protect the installation of the interior of the length measuring sensor through the protective shell 1 33, the middle part of the length measuring sensor is arranged as the transmission shaft 4, the bottom of the transmission shaft 4 is rotatably mounted on the shell base 1 through the bearing 1 5, the upper part of the transmission shaft 4 is fixedly mounted with the inner plate 2 32 through the bearing 2 7, so as to realize the rotational installation of the transmission shaft inside the length measuring sensor, the transmission shaft 4 is located at the shell base 1 and is installed with a reel 3, the top of the transmission shaft 4 is arranged as a conductive slip ring 10, the conductive slip ring 10 is used to detect the pull rope rotation speed of the transmission shaft 4, record data through the conductive slip ring 10, and connect the electrical interface of the length measuring sensor to realize signal transmission communication;

[0020] A driving gear 8 is provided on the top of the transmission shaft 4, and a driven gear 9 is meshed with one side of the driving gear 8. A potentiometer assembly 11 is installed at the bottom of the driven gear 9. The potentiometer assembly 11 is installed on the bracket 2 34, and the bracket 2 34 is fixed on the inner layer plate 2 32 to achieve fixed support for the potentiometer assembly 11. At the same time, the rotation of the transmission shaft 4 is recorded and the unit distance detection is calculated through the potentiometer assembly 11; a bracket 1 35 is provided on one side of the bracket 2 34, and the bracket 1 35 is used to support the installation of the conductive slip ring 10 to achieve speed detection of the transmission shaft 4 and output the unit distance detection data.

[0021] In order to realize the return rotation of the transmission shaft 4, a coil spring 6 is provided between the inner plate 1 31 and the inner plate 2 32. One side of the coil spring 6 is installed on the inner plate 1 31 and the middle part is fixed to the transmission shaft 4 to realize the return rotation drive of the transmission shaft 4.

[0022] In order to ensure that the length measuring cable 2 is arranged neatly on the reel, a wire pulley structure is added at the outlet of the length measuring sensor to restrain the vibration of the length measuring cable 2 and prevent the disordered arrangement of the wires.

[0023] In at least one embodiment, the wire pulley structure is specifically composed of a guide wheel 21, a support shaft 22, and a fixing frame 23. The fixing frame 23 is arranged on one side of the length measuring sensor outlet. Two support shafts 22 are installed in parallel on the fixing frame 23. The guide wheel 21 is installed on one of the support shafts 22. The length measuring cable 2 passes through the guide wheel 21. The vibration of the length measuring cable 2 is limited by the guide wheel 21 and the other support shaft 22.

[0024] In at least one embodiment, the length measuring cable 2 is configured to include, from the outside to the inside, an outer sheath 351, a shielding mesh 36, Kevlar fiber 37, and a conductor 38; and the length measuring cable 2 must have properties such as low-temperature flexibility, high-temperature non-deformation, tensile strength without ductility, oil resistance, and wear resistance.

[0025] The embodiments of the present invention are only used to illustrate the present invention and do not limit the scope of the claims. Other substantially equivalent alternatives that can be thought of by those skilled in the art are all within the protection scope of the present invention.

Claims

1. A novel drawstring length measuring sensor capable of transmitting signals and power, characterized in that: The length measuring sensor comprises a protective housing assembly, a transmission shaft (4), a bearing 1 (5), a bearing 2 (7), a potentiometer assembly (11), and a conductive slip ring (10). The protective housing assembly comprises a housing base 1 (1). The upper surface of the housing base 1 (1) is sequentially provided with an inner plate 1 (31) and an inner plate 2 (32) from bottom to top. The outer surfaces of the inner plate 1 (31) and the inner plate 2 (32) are provided with a protective housing 1 (33). The protective housing 1 (33), the inner plate 1 (31), and the inner plate 2 (32) are provided with a protective housing 1 (33). The three plates (32) are fixedly mounted by bolts and fixedly mounted on the upper surface of the housing base (1). A coil spring (6) is provided in the space between the inner plate (31) and the inner plate (32). The transmission shaft (4) is rotatably mounted on the middle part of the housing base (1) through the bearing (5). The top end of the transmission shaft (4) sequentially passes through the housing base (1), the inner plate (31), and the inner plate (32) and is connected to the conductive slip ring (10) so as to pass through the conductive slip ring (10). The rotation speed of the transmission shaft (4) is detected and the detection information is transmitted through the transmission port of the length measuring sensor. The conductive slip ring (10) is fixed to the mounting bracket 2 (34) through the bracket 1 (35). The bracket 2 (34) is fixed on the inner plate 2 (32). A driving gear (8) is provided at the connection between the transmission shaft (4) and the conductive slip ring (10). A driven gear (9) is provided on one side of the driving gear (8). A potentiometer assembly (11) is installed at the bottom of the driven gear (9). The potentiometer assembly (11) ) is installed on the bracket 2 (34), the transmission shaft (4) is fixedly installed with the inner plate 2 (32) through the bearing 2 (7), the transmission shaft (4) is located between the inner plate 1 (31) and the inner plate 2 (32) and is fixedly installed with the coil spring (6), the transmission shaft (4) at the bottom of the shell base 1 (1) is fixedly installed with a reel (3), the reel (3) is wound around the length measuring cable (2), and a wire wheel structure is added at the outlet of the length measuring sensor to restrain the vibration of the length measuring cable (2) and cause the wiring to be chaotic.

2. A novel draw-wire length measuring sensor capable of transmitting signals and power according to claim 1, characterized in that: The guide wheel structure consists of a guide wheel (21), a support shaft (22), and a fixed frame (23). The fixed frame (23) is arranged on one side of the outlet of the length measuring sensor. Two support shafts (22) are installed in parallel on the fixed frame (23). The guide wheel (21) is installed on one of the support shafts (22). The length measuring cable (2) passes through the guide wheel (21). The guide wheel (21) and the other support shaft (22) limit the vibration of the length measuring cable (2).

3. A novel draw-rope length measuring sensor capable of transmitting signals and power according to claim 1, characterized in that: The length measuring cable (2) is configured to include, from outside to inside, an outer sheath (351), a shielding mesh (36), Kevlar fiber (37) and a conductor (38).

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