Rotary torque sensor

Abstract

The utility model discloses a rotation torque sensor which comprises a shell, a measuring module is installed in the shell through bolts, connecting assemblies are arranged at the two ends of the measuring module, each connecting assembly comprises an installing shaft, an installing area is arranged at one end of each installing shaft, and a connecting rod is slidably connected in each installing area. A connecting pipe is in threaded connection with the center of one side of the inner wall of the mounting area, the connecting pipe is slidably inserted into the connecting rod, a cavity is formed in the connecting rod, and the cavity communicates with the connecting pipe; when the measuring module detects that the rotating machine is overspeed or overlarge in torque, the screw rod motor is started to enable the piston plate in the corresponding oil storage cylinder to rise, then hydraulic media in the oil storage cylinder, the connecting pipe and the cavity are not stressed any more, and then the plug connector retracts into the cavity under the springback effect of the third spring. Therefore, the connection between the connecting rod and the rotating machine is released, and overload protection of the rotating torque sensor is realized.

Description

TECHNICAL FIELD

[0001] The utility model relates to rotary torque sensor technical field especially relates to a rotary torque sensor. BACKGROUND

[0002] Torque sensor, also known as moment sensor, torsion sensor, torque sensor, torque meter, is divided into dynamic and static two categories, wherein dynamic torque sensor can be called torque sensor, torque speed sensor, non-contact torque sensor, rotary torque sensor, torque sensor is to the detection of the perception of torsional moment on various rotating or non-rotating mechanical components, torque sensor converts the physical change of torsion into accurate electrical signal, torque sensor can be applied in manufacturing viscosity meter, electric (pneumatic, hydraulic) torque wrench, it has high precision, fast frequency response, good reliability, long service life and other advantages, among them, rotary torque sensor is more common.

[0003] China patent number CN209927335U provides a rotary torque sensor, including transmission shaft, bearing assembly, shell, signal detection circuit, a plurality of insulating sleeve and at least two slip ring assemblies, slip ring assembly includes brush and slip ring, slip ring cover is set up on the outer periphery of transmission shaft, insulating sleeve is arranged between transmission shaft and bearing assembly, bearing assembly and shell and slip ring and transmission shaft;Brush and slip ring corresponding contact, brush is connected with actuating mechanism through spring passing through shell, signal detection circuit is electrically connected to working power supply and signal output end through bearing assembly and slip ring assembly.In bearing assembly, conductive grease is coated, which ensures the conductivity at high speed rotation.Slip ring assembly is contacted at low speed, which ensures the conductivity at low speed.When the rotational speed is higher than a certain set value, the control circuit makes the brush and slip ring separate through the actuating mechanism, thereby reducing the wear and carbon deposition.

[0004] When the rotary torque sensor is applied, the rotary torque sensor lacks overload protection function, when the rotating speed of the rotating machine is too large, the rotary torque sensor will be damaged due to overload, therefore, it is urgent to design a rotary torque sensor to solve the above problems. Utility model content

[0005] The utility model aims at solving the shortcomings in the prior art and provides a rotary torque sensor.

[0006] In order to achieve the above object, the utility model adopts the following technical scheme:

[0007] A kind of rotary torque sensor, including shell, the inside of shell is bolted with measuring module, and the both ends of measuring module are equipped with connecting assembly, the connecting assembly includes mounting shaft, the one end of mounting shaft is provided with installation area, and connecting rod is slidably connected in installation area, connecting pipe is threadedly connected in the center of one side of installation area inner wall, and connecting pipe is slidably inserted in connecting rod, cavity is formed in the connecting rod, and the cavity is communicated with the connecting pipe, two springs three are bolted on the inner wall of the cavity, and the one end of adjacent two springs three is bolted with plug-in piece, the outer wall of the both sides of mounting shaft is bolted with oil storage cylinder, and the top of one of oil storage cylinder is embedded with screw rod motor by bolt, piston plate is slidably connected in the oil storage cylinder, and the output end of screw rod motor is threadedly connected with piston plate, and one of the oil storage cylinder is communicated with connecting pipe by pipeline.

[0008] Further, the outer wall of one side of the connecting rod is bolted with a plurality of springs two in annular structure, and the other end of the spring two is in contact with the inner wall of the installation area.

[0009] Further, the inner wall of one side of the installation area is bolted with two telescopic cylinders, and the output end of the telescopic cylinder is fixedly connected with the connecting rod by bolt, and the telescopic cylinder is communicated with the other oil storage cylinder by pipeline.

[0010] Further, the top of one of the oil storage cylinder is bolted with an adjusting screw rod through a bearing, and the adjusting screw rod is threadedly connected with the other piston plate.

[0011] Further, the inner wall of the both sides of the shell is provided with three limiting grooves, and the outer wall of one side of the shell is provided with four through holes.

[0012] Further, the top of the shell is clamped with a cover plate assembly, the cover plate assembly includes a cover plate, the outer wall of one side of the top of the cover plate is provided with a recess, the outer wall of one side of the cover plate is provided with a mounting groove, and the mounting groove is communicated with the recess, a rotating rod is mounted in the recess through a bearing, and a gear is mounted at one end of the rotating rod through a key, and the gear is located in the mounting groove.

[0013] Further, the inner wall of the mounting groove is bolted with two springs one on the both sides, and the one end of adjacent two springs one is bolted with a sliding plate, the outer wall of one side of the sliding plate is integrally formed with three plug-in blocks, and the one end of the plug-in block is inserted into the limiting groove, the outer wall of one side of the sliding plate is integrally formed with a rack plate, and the gear is engaged with the rack plate.

[0014] The beneficial effects of the present application are as follows:

[0015] 1. When the measurement module detects that the rotating machinery is overspeed or the torque is too large, the screw rod motor is started, the piston plate inside the corresponding oil storage cylinder is lifted, the hydraulic medium inside the oil storage cylinder, the connecting pipe and the cavity is no longer stressed, and the plug-in part is retracted into the cavity under the rebounding action of the spring three, so that the connection between the connecting rod and the rotating machinery is disconnected, and the overload protection of the rotating torque sensor is realized.

[0016] 2. When the rotating torque sensor is connected with the rotating machinery, the adjusting screw can be turned by a hexagonal wrench according to the installation requirements of the rotating torque sensor, the adjusting screw is pressed to extrude the hydraulic medium inside the oil storage cylinder, the hydraulic medium flows into the telescopic cylinder through the pipeline, the telescopic cylinder expands, pushes the connecting rod to slide in the installation area, the connecting rod extends out of the installation shaft, the length of the output end of the rotating torque sensor is changed, and the requirements of different rotating machinery are met.

[0017] 3. When the rotating torque sensor needs to be disassembled for maintenance, the wrench is used to rotate the rotating rod, then the rotating rod drives the gear to rotate, the gear drives the two rack plates to move towards each other, then the rack plates drive the sliding plate to retract into the installation slot, the plug-in block is separated from the limiting slot, the limitation between the cover plate and the shell is quickly released, and workers can quickly disassemble the device for maintenance. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is a whole structure schematic diagram of the rotating torque sensor.

[0019] Figure 2 It is a whole structure schematic diagram of the rotating torque sensor.

[0020] Figure 3 It is a whole structure schematic diagram of the rotating torque sensor.

[0021] Figure 4 It is a cover plate assembly top view structure schematic diagram of the rotating torque sensor.

[0022] Figure 5 It is a cover plate assembly three-dimensional structure schematic diagram of the rotating torque sensor.

[0023] Figure 6 It is a connecting assembly structure schematic diagram of the rotating torque sensor.

[0024] In the figure: 1, the shell; 2, through hole; 3, cover plate assembly; 4, connecting assembly; 5, limiting groove; 6, measurement module; 7, cover plate; 8, mounting groove; 9, sliding plate; 10, plug-in block; 11, spring one; 12, gear; 13, rack plate; 14, rotating rod; 15, groove; 16, mounting shaft; 17, oil storage cylinder; 18, adjusting screw; 19, piston plate; 20, screw motor; 21, mounting area; 22, telescopic cylinder; 23, connecting pipe; 24, connecting rod; 25, spring two; 26, cavity; 27, plug-in; 28, spring three. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all the other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0026] It should be noted that when a component is referred to as being "fixed" to another component, it can be directly on the other component or there can be intervening components. When a component is referred to as being "connected" to another component, it can be directly connected to the other component or there can be intervening components. When a component is referred to as being "disposed" on another component, it can be directly on the other component or there can be intervening components. The terms "vertical", "horizontal", "left", "right", and similar terms as used herein are for purposes of illustration only.

[0027] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in the description of the application herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used in this description, the terms "therefore" and "because" are merely used to introduce an explanation of associated elements. The term "and / or" as used herein refers to and encompasses any and all possible combinations of one or more of the associated listed items.

[0028] Please also refer to Figures 1 to 6The utility model relates to a rotary torque sensor, including the casing 1, the inside through bolt installation has the measuring module 6 of casing 1, and both ends of measuring module 6 are equipped with the connecting assembly 4, and connecting assembly 4 includes the installation shaft 16, and the one end of installation shaft 16 is equipped with the installation area 21, and the connecting rod 24 of installation area 21 inside sliding connection has, and the connecting pipe 23 of installation area 21 inner wall one side center place is connected with screw, and the connecting pipe 23 slidingly inserts inside the connecting rod 24, and the cavity 26 of connecting rod 24 inside is equipped with, and the cavity 26 with connecting pipe 23 intercommunication, and the both sides of cavity 26 inner wall are all equipped with two spring threes 28 through bolt installation, and the one end of adjacent two spring threes 28 is installed with the plug connector 27 through bolt, and the both sides outer walls of installation shaft 16 are all equipped with the oil storage cylinder 17 through bolt installation, and the oil storage cylinder 17 stores hydraulic medium, and one of oil storage cylinder 17 top is embedded with screw and has the lead screw motor 20, and the model of lead screw motor 20 is preferably ZG20BY24B01 the L0.6 of -0.6, and the piston plate 19 of oil storage cylinder 17 inside sliding connection has, when measuring module 6 detects that rotary machine overspeed or torque is too big, the lead screw motor 20 will start, makes the piston plate 19 of corresponding oil storage cylinder 17 inside lift, then the hydraulic medium in the oil storage cylinder 17, the connecting pipe 23, the cavity 26 inside is no longer stressed, under the rebound action of subsequent spring three 28, the plug connector 27 will retract the cavity 26, makes the connecting rod 24 and the connection between rotary machine cancel, realizes the overload protection of rotary torque sensor, and the output between piston plate 19 and lead screw motor 20 is threaded connection, and one of oil storage cylinder 17 is interconnected through pipeline with connecting pipe 23.

[0029] Further, the connecting rod 24 one side outer wall is equipped with a plurality of spring 25 of annular structure distribution through bolt installation, and the other end of spring 25 and installation area 21 inner wall one side are mutually contacted, and the output between the extension cylinder 22 of installation area 21 inner wall one side through bolt and connecting rod 24 is fixedly connected, and the extension cylinder 22 is interconnected through pipeline with another oil storage cylinder 17, and the top of one of oil storage cylinder 17 is equipped with the adjusting screw 18 through bearing, according to the installation demand of rotary torque sensor, with hexagonal spanner turns to the adjusting screw 18, and the adjusting screw 18 of rotation will extrude the hydraulic medium in the oil storage cylinder 17, and the subsequent hydraulic medium will flow into the extension cylinder 22 inside through pipeline, and the extension cylinder 22 will expand, and the connecting rod 24 is pushed in the installation area 21 inside sliding, make the connecting rod 24 extend installation shaft 16, make the output length change of rotary torque sensor, and the adjusting screw 18 and another piston plate 19 are threaded connection.

[0030] Further, three limiting grooves 5 are arranged on both sides of the inner wall of the shell 1, four through holes 2 are arranged on the outer wall of one side of the shell 1, the through holes 2 are convenient for the bolts to pass through the shell 1, so that the shell 1 is fixed on the mechanical equipment, the cover plate assembly 3 is clamped at the top end of the shell 1, the cover plate assembly 3 comprises a cover plate 7, a recess 15 is arranged on the outer wall of one side of the top of the cover plate 7, an installation groove 8 is arranged on the outer wall of one side of the cover plate 7, and the installation groove 8 and the recess 15 are in communication with each other, a rotating rod 14 is installed in the recess 15 through a bearing, one end of the rotating rod 14 is installed with a gear 12 through a flat key, the gear 12 is located in the installation groove 8, two spring one 11s are installed on both sides of the inner wall of the installation groove 8 through bolts, and one end of the adjacent two spring one 11s is installed with a sliding plate 9 through a bolt, three plug-in blocks 10 are integrally formed on the outer wall of one side of the sliding plate 9, when the rotating rod 14 is not stressed, the sliding plate 9 will slide in the installation groove 8 with the plug-in blocks 10 under the action of the spring one 11, the plug-in blocks 10 will be plugged into the limiting grooves 5, so that the cover plate assembly 3 is fixed at the top end of the shell 1, and one end of the plug-in blocks 10 is plugged into the limiting grooves 5, a rack plate 13 is integrally formed on the outer wall of one side of the sliding plate 9, when it is necessary to disassemble the rotating torque sensor for maintenance, the rotating rod 14 can be rotated with a wrench, then the rotating rotating rod 14 will rotate with the gear 12, the rotating gear 12 will move towards the two rack plates 13, then the rack plate 13 will retract the sliding plate 9 into the installation groove 8, so that the plug-in blocks 10 are separated from the limiting grooves 5, so that the restriction between the cover plate 7 and the shell 1 is quickly released, so that the workers can quickly disassemble the device for maintenance, and the gear 12 and the rack plate 13 are in meshing relationship.

[0031] Working principle: in use, first, the bolt is passed through the through hole 2, so that the shell 1 is fixed on one side of the rotating machine, then the adjusting screw 18 is turned by a hexagonal wrench according to the installation requirements of the rotating torque sensor, the rotating adjusting screw 18 will extrude the hydraulic medium in the oil storage cylinder 17, and then the hydraulic medium will flow into the telescopic cylinder 22 through the pipeline, the telescopic cylinder 22 will expand, push the connecting rod 24 to slide in the installation area 21, make the connecting rod 24 extend out of the installation shaft 16, change the length of the output end of the rotating torque sensor, so as to meet the needs of different rotating machines, then when the rotating torque sensor detects the rotating machine, if the rotating machine is overspeed or the torque is too large, the screw rod motor 20 will start, the piston plate 19 in the corresponding oil storage cylinder 17 will rise, then the hydraulic medium in the oil storage cylinder 17, the connecting pipe 23 and the cavity 26 is no longer stressed, and then under the rebound action of the spring three 28, the plug-in part 27 will retract into the cavity 26, so that the connection between the connecting rod 24 and the rotating machine is disconnected, realizing the overload protection of the rotating torque sensor, then when the rotating torque sensor needs to be disassembled for maintenance, the rotating rod 14 can be turned by a wrench, then the rotating rod 14 will rotate with the gear 12, the rotating gear 12 will move the two rack plates 13 towards each other, then the rack plate 13 will retract the sliding plate 9 into the installation groove 8, so that the plug-in block 10 is separated from the limiting groove 5, so that the restriction between the cover plate 7 and the shell 1 is quickly released, so as to facilitate the worker to quickly disassemble the device for maintenance.

[0032] The above is only a preferred specific embodiment of the present application, but the protection scope of the present application is not limited thereto, any skilled person in the art can make equivalent replacement or change according to the technical scheme and the inventive concept of the present application within the technical range disclosed by the present application, which should be covered in the protection scope of the present application.

Claims

1. A rotary torque sensor comprising a housing (1), characterized in that The shell (1) is internally bolted with a measuring module (6), and both ends of the measuring module (6) are provided with a connecting assembly (4), the connecting assembly (4) comprises a mounting shaft (16), one end of the mounting shaft (16) is provided with a mounting area (21), and the mounting area (21) is internally and slidably connected with a connecting rod (24), a connecting pipe (23) is threadedly connected with the center of one side of the inner wall of the mounting area (21), and the connecting pipe (23) is slidably inserted into the connecting rod (24), a cavity (26) is formed in the connecting rod (24), and the cavity (26) and the connecting pipe (23) are in communication, two spring threes (28) are bolted on the inner walls of the cavity (26) on both sides, and one end of every two adjacent spring threes (28) is bolted with a plug-in piece (27), the outer walls of the mounting shaft (16) on both sides are bolted with oil storage cylinders (17), and the top of one of the oil storage cylinders (17) is embedded with a screw rod motor (20) through a bolt, the oil storage cylinder (17) is slidably connected with a piston plate (19), and the output end of the screw rod motor (20) is threadedly connected with the piston plate (19), and one of the oil storage cylinders (17) is in communication with the connecting pipe (23) through a pipeline.

2. A rotary torque sensor according to claim 1, wherein The outer wall of one side of the connecting rod (24) is bolted with a plurality of spring twos (25) arranged in an annular structure, and the other end of the spring two (25) is in contact with one side of the inner wall of the mounting area (21).

3. A rotary torque sensor according to claim 1, wherein The inner wall of one side of the mounting area (21) is bolted with two telescopic cylinders (22), and the output end of the telescopic cylinder (22) is fixedly connected with the connecting rod (24) through a bolt, and the telescopic cylinder (22) is in communication with the other oil storage cylinder (17) through a pipeline.

4. A rotary torque sensor according to claim 1, wherein The top of one of the oil storage cylinders (17) is mounted with an adjusting screw rod (18) through a bearing, and the adjusting screw rod (18) is threadedly connected with the other piston plate (19).

5. A rotary torque sensor according to claim 1, wherein The inner walls of the shell (1) on both sides are provided with three limiting grooves (5), and the outer wall of one side of the shell (1) is provided with four through holes (2).

6. A rotary torque sensor according to claim 5, wherein, The top of the shell (1) is clamped with a cover plate assembly (3), the cover plate assembly (3) comprises a cover plate (7), the outer wall of one side of the top of the cover plate (7) is provided with a groove (15), the outer wall of one side of the cover plate (7) is provided with a mounting groove (8), and the mounting groove (8) and the groove (15) are in communication, the groove (15) is internally mounted with a rotating rod (14) through a bearing, one end of the rotating rod (14) is mounted with a gear (12) through a flat key, and the gear (12) is located in the mounting groove (8).

7. A rotary torque sensor according to claim 6, wherein The inner walls of the mounting groove (8) on both sides are bolted with two spring ones (11), one end of every two adjacent spring ones (11) is bolted with a sliding plate (9) through a bolt, one side of the outer wall of the sliding plate (9) is integrally formed with three plug-in blocks (10), one end of the plug-in block (10) is inserted into the limiting groove (5), one side of the outer wall of the sliding plate (9) is integrally formed with a rack plate (13), and the gear (12) and the rack plate (13) are in meshing engagement.

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