Dynamic torque measurement sensor for railway fastener module bolt intelligent maintenance

Abstract

The invention relates to a dynamic torque measuring sensor for intelligent maintenance of railway fastener module bolts, which relates to the technical field of railway engineering bolt maintenance equipment, and is characterized in that the dynamic torque measuring sensor comprises a measuring shaft, the surface of the measuring shaft is provided with a torque detection area, an outer gear and a signal transmission area, and the outer sides of the torque detection area and the signal transmission area are provided with a sensor shell; the sensor shell is fixedly mounted in the intelligent maintenance operation device; a torque detection area is arranged on the surface of the torque detection area, and a signal inner coil is arranged on the surface of the signal transmission area; and the spline shaft is arranged below the measuring shaft, and a maintenance sleeve is installed at the bottom of the spline shaft. The method can ensure that the bolt tightening torque really conforms to the design specification; the stress consistency of the bolts is ensured, and the clamping force on the track is more uniform; the false torque phenomenon is eliminated, and the reliability and safety of operation are improved.

Description

Technical Field

[0001] The present invention relates to the technical field of railway track bolt maintenance equipment, and particularly to a dynamic torque measurement sensor for intelligent maintenance of railway fastener module bolts. Background Art

[0002] Railway track fastener bolts refer to the bolt assemblies used to fix track fasteners on both sides of railway tracks. In actual applications, railway tracks include conventional railway tracks, high-speed railway tracks, and urban rail transit tracks, etc. These tracks all belong to the category of railway tracks, and their track structures are basically the same. The existing tracks have double rails, and track fasteners are arranged on both sides of each rail to fix and constrain them on the sleeper;

[0003] In the prior art, the equipment used to inspect the installation of track fastener bolts generally adopts the structure of an internal combustion engine trolley pushed manually. The trolley structure walks manually on a single track, and a diesel engine is set on the trolley structure as the power for tightening and loosening bolts. The mechanical structure stops forcibly, and the lifting and alignment are manually controlled, so as to tighten or disassemble the bolt components that need to be inspected on both sides of a single track.

[0004] However, when the above trolley performs bolt tightening operations, it mainly relies on mechanical slipping and jamming as the basis for bolt tightening, with low precision, resulting in a large fluctuation range of the tightening torque of each bolt. The existing electric tools and mechanical torque control structures mainly calculate according to the theoretical efficiency and make appropriate corrections later. However, whether it is a motor or other power output devices such as motors, first, there are efficiency losses in the power output itself, and second, there are losses between each mechanical transmission connection. Therefore, their measurement accuracy is still relatively low. Summary of the Invention

[0005] The present invention provides a dynamic torque measurement sensor for intelligent maintenance of railway fastener module bolts, which is used to solve the problem that various electric and mechanical torque controls adopted in current bolt tightening operations belong to non-standard sensors, and the fluctuation range of the tightening torque of each bolt is relatively large.

[0006] The present invention provides a dynamic torque measurement sensor for intelligent maintenance of railway fastener module bolts, including:

[0007] A measuring shaft, on the surface of which there are a torque detection area, an external gear, and a signal output area. The torque detection area and the signal output area are provided with a sensor housing on the outside, and the sensor housing is fixedly installed inside the intelligent maintenance operation device;

[0008] The surface of the torque detection area is provided with a torque detection area, and the surface of the signal output area is provided with a signal inner coil;

[0009] A spline shaft, which is arranged below the measuring shaft, and a maintenance sleeve is installed at the bottom of the spline shaft.

[0010] Preferably, the interior of the measuring shaft is cylindrical and hollow, and the bottom of the inner hole of the measuring shaft is machined into an internal spline, and the diameter of the internal spline is larger than the diameter of the inner hole of the measuring shaft.

[0011] Preferably, the torque detection area is arranged above the internal spline.

[0012] Preferably, an upper support bearing is arranged above the external gear, and a lower support bearing is arranged below the external gear. The inner rings of the upper support bearing and the lower support bearing are fixedly connected to the measuring shaft.

[0013] Preferably, a signal outer coil is arranged at a position corresponding to the signal input area on the inner side of the sensor housing, and a transmission gear housing is arranged on the outer side of the sensor housing, and the transmission gear housing covers the external gear.

[0014] Preferably, a servo motor is installed inside the intelligent maintenance operation device, a speed reducer is installed at the output end of the servo motor, the output end of the speed reducer extends into the interior of the transmission gear housing, and an output gear set is fixedly connected to the output end of the speed reducer.

[0015] Preferably, the output gear set is arranged inside the transmission gear housing, and the output gear set meshes with the external gear.

[0016] Preferably, the upper section of the spline shaft is a smooth rod, the upper section of the spline shaft is inserted into the inner hole of the measuring shaft, and the spline shaft is inserted into the internal spline.

[0017] Preferably, the interior of the spline shaft is hollow, and a stationary probe is arranged in the inner hole of the spline shaft.

[0018] Preferably, the interior of the maintenance sleeve is communicated with the inner hole of the spline shaft, and the bolt inside the maintenance sleeve can be pushed out by the stationary probe in the inner hole of the spline shaft.

[0019] Compared with the prior art, the advantages of the present invention are as follows:

[0020] 1. Ensure that the tightening torque of the bolt truly conforms to the design specifications.

[0021] 2. Ensure the consistency of the bolt force, and the clamping force on the track is more uniform.

[0022] 3. Eliminate the false torque phenomenon and improve the reliability and safety of the operation.

[0023] 4. Achieve non-contact transmission through the cooperation of the signal inner coil and the signal outer coil, avoid the problem of equipment rotation wear, and reduce the equipment failure rate during use. Description of the Drawings

[0024] The present invention will be described in more detail below based on embodiments and with reference to the accompanying drawings.

[0025] Figure 1 is a schematic diagram of the overall structure of the intelligent inspection and tightening mechanism for the bolts of the railway fastener module of the present invention;

[0026] Figure 2 is a schematic diagram of the installation of the dynamic torque measurement sensor for the intelligent inspection of the bolts of the railway fastener module of the present invention;

[0027] Figure 3 is an external view schematic diagram of the dynamic torque measurement sensor for the intelligent inspection of the bolts of the railway fastener module of the present invention;

[0028] Figure 4 is a cross-sectional view schematic diagram of the dynamic torque measurement sensor for the intelligent inspection of the bolts of the railway fastener module of the present invention;

[0029] Figure 5 is a measurement principle schematic diagram of the dynamic torque measurement sensor for the intelligent inspection of the bolts of the railway fastener module of the present invention;

[0030] Figure 6 is a strain bridge strain schematic diagram of the dynamic torque measurement sensor for the intelligent inspection of the bolts of the railway fastener module of the present invention;

[0031] Reference numerals:

[0032] Intelligent inspection operation device 1;

[0033] Servo motor 2;

[0034] Reducer 3, output gear set 31;

[0035] Drive gear housing 4;

[0036] Measurement shaft 5, upper support bearing 51, lower support bearing 52, sensor housing 53, torque detection area 531, measurement strain gauge 532, external gear 54, signal output area 55, internal spline 56;

[0037] Spline shaft 6;

[0038] Maintenance sleeve 7. Detailed implementation manners

[0039] The present invention will be further described below in conjunction with the accompanying drawings.

[0040] The present invention provides a dynamic torque measurement sensor for the intelligent inspection of the bolts of a railway fastener module, comprising:

[0041] Measuring shaft 5, the interior of the measuring shaft 5 is cylindrically hollow, and the bottom of the inner hole of the measuring shaft 5 is machined into an internal spline 56. The diameter of the internal spline 56 is greater than the diameter of the inner hole of the measuring shaft 5. The surface of the measuring shaft 5 is provided with a torque detection area 531, an external gear 54, and a signal output area 55. The torque detection area 531 is arranged above the internal spline 56. An upper support bearing 51 is arranged above the external gear 54, and a lower support bearing 52 is arranged below the external gear 54. The inner rings of the upper support bearing 51 and the lower support bearing 52 are fixedly connected to the measuring shaft 5. A sensor housing 53 is arranged outside the torque detection area 531 and the signal output area 55. The sensor housing 53 is fixedly installed inside the intelligent maintenance operation device 1. A signal outer coil is arranged at a position corresponding to the signal output area 55 on the inner side of the sensor housing 53. A transmission gear housing 4 is arranged outside the sensor housing 53, and the transmission gear housing 4 covers the external gear 54;

[0042] A servo motor 2 is installed inside the intelligent maintenance operation device 1. The output end of the servo motor 2 is installed with a speed reducer 3. The output end of the speed reducer 3 extends into the interior of the transmission gear housing 4. The output end of the speed reducer 3 is fixedly connected with an output gear set 31. The output gear set 31 is arranged inside the transmission gear housing 4, and the output gear set 31 meshes with the external gear 54;

[0043] A measuring strain gauge 532 is arranged on the surface of the torque detection area 531, and a signal inner coil is arranged on the surface of the signal output area 55;

[0044] Spline shaft 6, the spline shaft 6 is arranged below the measuring shaft 5. The upper section of the spline shaft 6 is a smooth rod. The upper section of the spline shaft 6 is inserted into the inner hole of the measuring shaft 5. The spline shaft 6 is inserted into the internal spline 56. The interior of the spline shaft 6 is hollow. A stationary probe is arranged in the inner hole of the spline shaft 6. A maintenance sleeve 7 is installed at the bottom of the spline shaft 6. The interior of the maintenance sleeve 7 is communicated with the inner hole of the spline shaft 6. The bolt inside the maintenance sleeve 7 can be pushed out through the stationary probe in the inner hole of the spline shaft 6.

[0045] Embodiment 1:

[0046] Refer to Figure 1 as shown Figure 1 is the overall structural schematic diagram of the intelligent maintenance and tightening mechanism for railway fastener module bolts of the present invention;

[0047] Refer to Figure 2 as shown Figure 2 is the installation schematic diagram of the dynamic torque measurement sensor for intelligent maintenance of railway fastener module bolts of the present invention;

[0048] Refer to Figure 3 as shown in Figure 3 which is the external view schematic diagram of the dynamic torque measurement sensor for intelligent maintenance of railway fastener module bolts of the present invention;

[0049] Refer to Figure 4 as shown in Figure 4 which is the cross-sectional view schematic diagram of the dynamic torque measurement sensor for intelligent maintenance of railway fastener module bolts of the present invention;

[0050] Refer to Figure 5 as shown in Figure 5 which is the measurement principle diagram of the dynamic torque measurement sensor for intelligent maintenance of railway fastener module bolts of the present invention;

[0051] Refer to Figure 6 as shown in Figure 6 which is the strain bridge strain schematic diagram of the dynamic torque measurement sensor for intelligent maintenance of railway fastener module bolts of the present invention;

[0052] Refer to Figures 1 - 6 as shown in, a dynamic torque measurement sensor for intelligent maintenance of railway fastener module bolts, comprising:

[0053] a measuring shaft 5, a spline shaft 6, and a maintenance sleeve 7;

[0054] The measuring shaft 5 is made of a special metal bar for the sensor. The inside of the measuring shaft 5 is hollow processed, and the inner hole bottom of the measuring shaft 5 is processed into an internal spline 56 at 1 / 3, and the upper 2 / 3 is designed as a smooth hole;

[0055] The outer middle upper part of the measuring shaft 5 is processed with a fixed area of the external gear 54. The measuring shaft 5 is matched with the external gear 54 through the upper support bearing 51 and the lower support bearing 52, so that the external gear 54 drives the measuring shaft 5 to rotate;

[0056] Refer to Figures 3 to 5 as shown in, the outer middle lower part of the measuring shaft 5 is designed as a torque detection area 531 and a signal output area 55. The torque detection area 531 is designed with the required thickness according to the force requirement. A measuring strain gauge 532 is installed on the torque detection area 531, so that the measuring strain gauge 532 covers the torque detection area 531 and the signal output area 55. The measuring strain gauge 532 is used to detect the force change in the torque detection area 531. A signal inner coil is wound outside the torque detection area 531, so that the internal measurement signal is output outward through the electromagnetic induction of the coil;

[0057] The signal inner coil cooperates with the signal outer coil of the sensor housing 53 to achieve non-contact transmission, avoiding the problem of equipment rotation wear and reducing the equipment failure rate during use.

[0058] Refer to Figure 2As shown, the sensor housing 53 is arranged outside the torque detection area 531, and a signal outer coil corresponding to the signal inner coil is arranged inside the sensor housing 53. The signal outer coil is used to receive the electromagnetic signal output by the signal inner coil;

[0059] Refer to Figures 2 to 6 As shown, the inside of the measuring shaft 5 is connected to the spline shaft 6 through an internal spline 56. The bottom end of the spline shaft 6 is connected to the maintenance sleeve 7. The outer gear 54 drives the measuring shaft 5 to rotate. The measuring shaft 5 drives the maintenance sleeve 7 to screw the bolt through the spline shaft 6. At this time, the torque detection area 531 is located between the outer gear 54 and the spline shaft 6. When the forces at the two rotation points of the outer gear 54 and the spline shaft 6 pass through the torque detection area 531, it causes a large material deformation in the torque detection area 531. The measuring strain gauge 532 is affected by the material deformation of the torque detection area 531 and excites a large change signal output. The signal is amplified and output through the signal inner coil and the signal outer coil, so as to measure the rotational force and torque acting on the bolt.

[0060] Embodiment 2:

[0061] Refer to Figure 1 As shown, Figure 1 is the overall structural schematic diagram of the intelligent maintenance and tightening mechanism for the bolts of the railway fastener module of the present invention;

[0062] Refer to Figure 2 As shown, Figure 2 is the installation schematic diagram of the dynamic torque measurement sensor for the intelligent maintenance of the bolts of the railway fastener module of the present invention;

[0063] Refer to Figure 3 As shown, Figure 3 is the external appearance schematic diagram of the dynamic torque measurement sensor for the intelligent maintenance of the bolts of the railway fastener module of the present invention;

[0064] Refer to Figure 4 As shown, Figure 4 is the cross-sectional schematic diagram of the dynamic torque measurement sensor for the intelligent maintenance of the bolts of the railway fastener module of the present invention;

[0065] Refer to Figure 5 As shown, Figure 5 is the measurement principle schematic diagram of the dynamic torque measurement sensor for the intelligent maintenance of the bolts of the railway fastener module of the present invention;

[0066] Refer to Figure 6 As shown, Figure 6 is the strain bridge strain schematic diagram of the dynamic torque measurement sensor for the intelligent maintenance of the bolts of the railway fastener module of the present invention;

[0067] Refer to Figures 1 - 6 As shown, a dynamic torque measurement sensor for the intelligent maintenance of the bolts of the railway fastener module includes:

[0068] Measuring shaft 5, spline shaft 6, maintenance sleeve 7;

[0069] The measuring shaft 5 is made of a special metal rod for sensors. The inside of the measuring shaft 5 is machined hollow, and the inner hole bottom of the measuring shaft 5 at 1 / 3 is machined into an internal spline 56, and the upper 2 / 3 is designed as a smooth hole;

[0070] The upper middle part on the outside of the measuring shaft 5 is machined with a fixed area for the external gear 54. The measuring shaft 5 is fitted with the external gear 54 through the upper support bearing 51 and the lower support bearing 52, so that the external gear 54 drives the measuring shaft 5 to rotate;

[0071] Refer to Figures 3 to 5 As shown, the lower middle part on the outside of the measuring shaft 5 is designed as a torque detection area 531 and a signal output area 55. The torque detection area 531 is designed with the required thickness according to the force requirement. A measuring strain gauge 532 is installed on the torque detection area 531, so that the measuring strain gauge 532 covers the torque detection area 531 and the signal output area 55. The measuring strain gauge 532 is used to detect the force change in the torque detection area 531. A signal inner coil is wound outside the torque detection area 531, so that the internal measurement signal is output outward through the electromagnetic induction of the coil;

[0072] The signal inner coil cooperates with the signal outer coil of the sensor housing 53 to achieve non-contact transmission, avoiding the problem of equipment rotation wear and reducing the equipment failure rate during use.

[0073] Refer to Figure 2 As shown, the sensor housing 53 is arranged outside the torque detection area 531. The inside of the sensor housing 53 is provided with a signal outer coil corresponding to the signal inner coil. The signal outer coil is used to receive the electromagnetic signal output by the signal inner coil;

[0074] Refer to Figures 2 to 6 As shown, the inside of the measuring shaft 5 is connected to the spline shaft 6 through the internal spline 56. The bottom end of the spline shaft 6 is connected to the maintenance sleeve 7. The external gear 54 drives the measuring shaft 5 to rotate. The measuring shaft 5 drives the maintenance sleeve 7 to screw the bolt through the spline shaft 6. At this time, the torque detection area 531 is located between the external gear 54 and the spline shaft 6. When the forces at the two rotation points of the external gear 54 and the spline shaft 6 pass through the torque detection area 531, a large material deformation is generated in the torque detection area 531. The measuring strain gauge 532 is affected by the material deformation of the torque detection area 531 and excites a large change signal output. The signal is amplified and output through the signal inner coil and the signal outer coil, so as to measure the rotational force and torque acting on the bolt;

[0075] On the basis of Embodiment 1, in this embodiment, the internal spline 56 is designed as a polygonal square hole, and the spline shaft 6 is designed as a polygonal shaft. The measuring shaft 5 is connected to the spline shaft 6 through polygonal fitting, and the other features are the same as those in Embodiment 1.

[0076] Example 3:

[0077] Referring to Figure 1 as shown, Figure 1 Fig. is a schematic diagram of the overall structure of the intelligent inspection and tightening mechanism for the bolts of the railway fastener module of the present invention;

[0078] Referring to Figure 2 as shown, Figure 2 Fig. is a schematic diagram of the installation of the dynamic torque measurement sensor for the intelligent inspection of the bolts of the railway fastener module of the present invention;

[0079] Referring to Figure 3 as shown, Figure 3 Fig. is an external view schematic diagram of the dynamic torque measurement sensor for the intelligent inspection of the bolts of the railway fastener module of the present invention;

[0080] Referring to Figure 4 as shown, Figure 4 Fig. is a cross-sectional view schematic diagram of the dynamic torque measurement sensor for the intelligent inspection of the bolts of the railway fastener module of the present invention;

[0081] Referring to Figure 5 as shown, Figure 5 Fig. is a measurement principle diagram of the dynamic torque measurement sensor for the intelligent inspection of the bolts of the railway fastener module of the present invention;

[0082] Referring to Figure 6 as shown, Figure 6 Fig. is a strain bridge strain schematic diagram of the dynamic torque measurement sensor for the intelligent inspection of the bolts of the railway fastener module of the present invention;

[0083] Referring to Figures 1 - 6 as shown, a dynamic torque measurement sensor for the intelligent inspection of the bolts of a railway fastener module, comprising:

[0084] a measuring shaft 5, a spline shaft 6, and a maintenance sleeve 7;

[0085] The measuring shaft 5 is made of a special metal bar for sensors. The inside of the measuring shaft 5 is machined to be hollow, and the bottom 1 / 3 of the inner hole of the measuring shaft 5 is machined into an internal spline 56, and the upper 2 / 3 is designed as a smooth hole;

[0086] The outer middle upper part of the measuring shaft 5 is machined with an outer gear 54 fixing area. The measuring shaft 5 is matched with the outer gear 54 through an upper support bearing 51 and a lower support bearing 52, so that the outer gear 54 drives the measuring shaft 5 to rotate;

[0087] Referring to Figures 3 to 5As shown, the middle and lower part on the outer side of the measuring shaft 5 is designed as a torque detection area 531 and a signal output area 55. The torque detection area 531 is designed with the required thickness according to the force requirement. A measuring strain gauge 532 is installed on the torque detection area 531, so that the measuring strain gauge 532 covers the torque detection area 531 and the signal output area 55. The measuring strain gauge 532 is used to detect the force change of the torque detection area 531. A signal inner coil is wound outside the torque detection area 531, so that the internal measurement signal is output outward through the electromagnetic induction of the coil;

[0088] The signal inner coil cooperates with the signal outer coil of the sensor housing 53 to achieve non-contact transmission, avoiding the problem of rotational wear of the device and reducing the failure rate of device use.

[0089] Refer to Figure 2 As shown, the sensor housing 53 is arranged on the outer side of the torque detection area 531. A signal outer coil corresponding to the signal inner coil is arranged inside the sensor housing 53. The signal outer coil is used to receive the electromagnetic signal output by the signal inner coil;

[0090] Refer to Figures 2 to 6 As shown, the inside of the measuring shaft 5 is connected to the spline shaft 6 through an internal spline 56. The bottom end of the spline shaft 6 is connected to the maintenance sleeve 7. The external gear 54 drives the measuring shaft 5 to rotate. The measuring shaft 5 drives the maintenance sleeve 7 to screw the bolt through the spline shaft 6. At this time, the torque detection area 531 is located between the external gear 54 and the spline shaft 6. When the forces at the two rotation points of the external gear 54 and the spline shaft 6 pass through the torque detection area 531, a large material deformation is generated in the torque detection area 531. The measuring strain gauge 532 is affected by the material deformation of the torque detection area 531 and excited to output a large change signal. The signal is amplified and output through the signal inner coil and the signal outer coil, so as to measure the rotational force and torque acting on the bolt;

[0091] On the basis of Embodiment 1, in this embodiment, a spline shaft is fixedly arranged at the position below the torque detection area 531 at the lower end of the measuring shaft 5. The spline shaft at the lower end of the measuring shaft 5 is connected to the maintenance sleeve 7, and the other features are the same as those in Embodiment 1.

[0092] Embodiment 4:

[0093] Refer to Figure 1 As shown, Figure 1 is the overall structural schematic diagram of the intelligent maintenance and tightening mechanism for the bolts of the railway fastener module of the present invention;

[0094] Refer to Figure 2 As shown, Figure 2 is the installation schematic diagram of the dynamic torque measurement sensor for the intelligent maintenance of the bolts of the railway fastener module of the present invention;

[0095] Refer to Figure 3 As shown, Figure 3It is a schematic external view of the dynamic torque measurement sensor for intelligent maintenance of railway fastener module bolts in the present invention;

[0096] Refer to Figure 4 as shown in Figure 4 It is a schematic sectional view of the dynamic torque measurement sensor for intelligent maintenance of railway fastener module bolts in the present invention;

[0097] Refer to Figure 5 as shown in Figure 5 It is the measurement principle diagram of the dynamic torque measurement sensor for intelligent maintenance of railway fastener module bolts in the present invention;

[0098] Refer to Figure 6 as shown in Figure 6 It is the strain diagram of the strain bridge of the dynamic torque measurement sensor for intelligent maintenance of railway fastener module bolts in the present invention;

[0099] Refer to Figures 1 - 6 as shown in, a dynamic torque measurement sensor for intelligent maintenance of railway fastener module bolts includes:

[0100] a measuring shaft 5, a spline shaft 6, and a maintenance sleeve 7;

[0101] The measuring shaft 5 is made of a special metal bar for sensors. The inside of the measuring shaft 5 is hollow processed, and the bottom 1 / 3 of the inner hole of the measuring shaft 5 is processed into an internal spline 56, and the upper 2 / 3 is designed as a smooth hole;

[0102] The upper middle part of the outer side of the measuring shaft 5 is processed with a fixed area of the external gear 54. The measuring shaft 5 is matched with the external gear 54 through the upper support bearing 51 and the lower support bearing 52, so that the external gear 54 drives the measuring shaft 5 to rotate;

[0103] Refer to Figures 3 to 5 as shown in, the lower middle part of the outer side of the measuring shaft 5 is designed as a torque detection area 531 and a signal output area 55. The torque detection area 531 is designed with the required thickness according to the force requirement. A measuring strain gauge 532 is installed on the torque detection area 531, so that the measuring strain gauge 532 covers the torque detection area 531 and the signal output area 55. The measuring strain gauge 532 is used to detect the force change in the torque detection area 531. A signal inner coil is wound outside the torque detection area 531, so that the internal measurement signal is output outward through coil electromagnetic induction;

[0104] The signal inner coil cooperates with the signal outer coil of the sensor housing 53 to achieve non-contact transmission, avoid the problem of equipment rotation wear, and reduce the equipment failure rate during use.

[0105] Refer to Figure 2As shown, the sensor housing 53 is disposed outside the torque detection area 531, and a signal outer coil corresponding to the signal inner coil is disposed inside the sensor housing 53. The signal outer coil is used to receive the electromagnetic signal output by the signal inner coil;

[0106] Referring to Figures 2 to 6 As shown, the inside of the measuring shaft 5 is connected to the spline shaft 6 through an internal spline 56. The bottom end of the spline shaft 6 is connected to the maintenance sleeve 7. The external gear 54 drives the measuring shaft 5 to rotate. The measuring shaft 5 drives the maintenance sleeve 7 to screw the bolt through the spline shaft 6. At this time, the torque detection area 531 is located between the external gear 54 and the spline shaft 6. When the forces at the two rotation points of the external gear 54 and the spline shaft 6 pass through the torque detection area 531, a large material deformation is generated in the torque detection area 531. The measuring strain gauge 532 is affected by the material deformation of the torque detection area 531 and excites a large change signal output. The signal is amplified and output through the signal inner coil and the signal outer coil, so as to measure the rotational force and torque acting on the bolt;

[0107] Referring to Embodiment 3, a spline shaft is fixedly arranged at a position below the torque detection area 531 at the lower end of the measuring shaft 5, and the spline shaft at the lower end of the measuring shaft 5 is connected to the maintenance sleeve 7, and the other features are the same as those in Embodiment 1;

[0108] On the basis of Embodiment 3, in this embodiment, a polygonal square shaft is fixedly arranged at a position below the torque detection area 531 at the lower end of the measuring shaft 5, and the polygonal square shaft at the lower end of the measuring shaft 5 is connected to the maintenance sleeve 7, and the other features are the same as those in Embodiment 3.

[0109] Embodiment 5:

[0110] Referring to Figure 1 As shown, Figure 1 is a schematic diagram of the overall structure of the intelligent maintenance and tightening mechanism for the bolts of the railway fastener module of the present invention;

[0111] Referring to Figure 2 As shown, Figure 2 is an installation diagram of the dynamic torque measurement sensor for the intelligent maintenance of the bolts of the railway fastener module of the present invention;

[0112] Referring to Figure 3 As shown, Figure 3 is an external view diagram of the dynamic torque measurement sensor for the intelligent maintenance of the bolts of the railway fastener module of the present invention;

[0113] Referring to Figure 4 As shown, Figure 4 is a cross-sectional view diagram of the dynamic torque measurement sensor for the intelligent maintenance of the bolts of the railway fastener module of the present invention;

[0114] Referring to Figure 5 As shown, Figure 5It is the measurement schematic diagram of the dynamic torque measurement sensor for intelligent maintenance of the bolts of the railway fastener module of the present invention;

[0115] Refer to Figure 6 as shown in Figure 6 It is the strain bridge strain schematic diagram of the dynamic torque measurement sensor for intelligent maintenance of the bolts of the railway fastener module of the present invention;

[0116] Refer to Figures 1 - 6 as shown in, a dynamic torque measurement sensor for intelligent maintenance of the bolts of a railway fastener module includes:

[0117] a measuring shaft 5, a spline shaft 6, and a maintenance sleeve 7;

[0118] The measuring shaft 5 is made of a special metal rod for the sensor. The inside of the measuring shaft 5 is hollow processed, and the inner hole bottom 1 / 3 of the measuring shaft 5 is processed into an internal spline 56, and the upper 2 / 3 is designed as a smooth hole;

[0119] The outer middle upper part of the measuring shaft 5 is processed with a fixed area for the external gear 54. The measuring shaft 5 is matched with the external gear 54 through the upper support bearing 51 and the lower support bearing 52, so that the external gear 54 drives the measuring shaft 5 to rotate;

[0120] Refer to Figures 3 to 5 as shown in, the outer middle lower part of the measuring shaft 5 is designed as a torque detection area 531 and a signal output area 55. The torque detection area 531 is designed with the required thickness according to the force requirement. A measuring strain gauge 532 is installed on the torque detection area 531, so that the measuring strain gauge 532 covers the torque detection area 531 and the signal output area 55. The measuring strain gauge 532 is used to detect the force change in the torque detection area 531. A signal inner coil is wound outside the torque detection area 531, so that the internal measurement signal is output outward through coil electromagnetic induction;

[0121] The signal inner coil cooperates with the signal outer coil of the sensor housing 53 to achieve non-contact transmission, avoid the problem of equipment rotation wear, and reduce the equipment use failure rate.

[0122] Refer to Figure 2 as shown in, the sensor housing 53 is arranged outside the torque detection area 531. The inside of the sensor housing 53 is provided with a signal outer coil corresponding to the signal inner coil, and the signal outer coil is used to receive the electromagnetic signal output by the signal inner coil;

[0123] Refer to Figures 2 to 6As shown, the interior of the measuring shaft 5 is connected to the spline shaft 6 through an internal spline 56. The bottom end of the spline shaft 6 is connected to the maintenance sleeve 7. The external gear 54 drives the measuring shaft 5 to rotate. The measuring shaft 5 drives the maintenance sleeve 7 to screw the bolt through the spline shaft 6. At this time, the torque detection area 531 is located between the external gear 54 and the spline shaft 6. When the forces at the two rotation points of the external gear 54 and the spline shaft 6 pass through the torque detection area 531, it causes a large material deformation in the torque detection area 531. The measuring strain gauge 532 is affected by the material deformation of the torque detection area 531 and excites a large change signal output. After the signal is amplified by the signal inner coil and the signal outer coil, it is output, so as to measure the rotational force and torque acting on the bolt;

[0124] On the basis of the first embodiment, in this embodiment, an expansion structure is used to replace the torque detection area 531. When the two rotation points of the external gear 54 and the maintenance sleeve 7 are stressed, the expansion structure expands, and the measuring strain gauge 532 is affected by the deformation of the expansion structure to form a change signal. The other features are the same as those of the first embodiment.

[0125] Although the present invention has been described with reference to the preferred embodiments, various improvements can be made to it and its components can be replaced with equivalents without departing from the scope of the present invention. In particular, as long as there is no structural conflict, the technical features mentioned in each embodiment can be combined in any way. The present invention is not limited to the specific embodiments disclosed in the text, but includes all technical solutions falling within the scope of the claims.

Claims

1. A dynamic torque measurement sensor for intelligent maintenance of railway fastener module bolts, characterized in that: include: A measuring shaft, wherein a torque detection area, an external gear and a signal transmission area are arranged on the surface of the measuring shaft, a sensor housing is arranged outside the torque detection area and the signal transmission area, and the sensor housing is fixedly installed inside the intelligent maintenance operation device; The surface of the torque detection area is provided with a torque detection area, and the surface of the signal input area is provided with a signal inner coil; A spline shaft is arranged below the measuring shaft, and a maintenance sleeve is installed at the bottom of the spline shaft.

2. The dynamic torque measurement sensor for intelligent maintenance of railway fastener module bolts according to claim 1 is characterized in that: The interior of the measuring shaft is configured to be cylindrically hollow, and the bottom of the inner hole of the measuring shaft is processed into an internal spline, and the diameter of the internal spline is larger than the diameter of the inner hole of the measuring shaft.

3. The dynamic torque measurement sensor for intelligent maintenance of railway fastener module bolts according to claim 2 is characterized in that: The torque detection area is arranged above the internal spline.

4. The dynamic torque measurement sensor for intelligent maintenance of railway fastener module bolts according to claim 3 is characterized in that: An upper support bearing is arranged above the external gear, and a lower support bearing is arranged below the external gear. The inner rings of the upper support bearing and the lower support bearing are both fixedly connected to the measuring shaft.

5. The dynamic torque measurement sensor for intelligent maintenance of railway fastener module bolts according to claim 4 is characterized in that: A signal outer coil is arranged at a position inside the sensor housing corresponding to the signal input area, and a transmission gear housing is arranged outside the sensor housing, and the transmission gear housing covers the outer gear.

6. The dynamic torque measurement sensor for intelligent maintenance of railway fastener module bolts according to claim 5, characterized in that: A servo motor is installed inside the intelligent maintenance operation device, a reducer is installed at the output end of the servo motor, the output end of the reducer extends to the inside of the transmission gear housing, and the output end of the reducer is fixedly connected to an output gear set.

7. The dynamic torque measurement sensor for intelligent maintenance of railway fastener module bolts according to claim 6, characterized in that: The output gear set is arranged inside the transmission gear housing, and the output gear set is meshed with the external gear.

8. The dynamic torque measurement sensor for intelligent maintenance of railway fastener module bolts according to claim 7, characterized in that: The upper section of the spline shaft is arranged as a polished rod, the upper section of the spline shaft is inserted into the inner hole of the measuring shaft, and the spline shaft is inserted into the inner spline.

9. The dynamic torque measurement sensor for intelligent maintenance of railway fastener module bolts according to claim 8, characterized in that: The interior of the spline shaft is arranged to be hollow, and a stationary probe is arranged in the inner hole of the spline shaft.

10. The dynamic torque measurement sensor for intelligent maintenance of railway fastener module bolts according to claim 9, characterized in that: The interior of the inspection sleeve is communicated with the inner hole of the spline shaft, and the bolts inside the inspection sleeve can be pushed out through a stationary probe in the inner hole of the spline shaft.

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