Sleeve self-cleaning mechanism and intelligent bolt tightening device for railway engineering fastener module

Abstract

The utility model relates to a sleeve self-cleaning mechanism and a railway engineering fastener module bolt intelligent tightening device, and relates to the technical field of railway engineering bolt maintenance equipment, the sleeve self-cleaning mechanism is characterized in that two sets of fixing plates are arranged, an inner spline shaft is installed at the bottom of each fixing plate in a liftable mode, and a probe telescopic hole is formed in the middle of each inner spline shaft; a static probe is arranged in the probe telescopic hole in a sliding manner; the measuring shaft is arranged at the bottom of the fixing plate and slidably sleeves the surface of the inner spline shaft through a spline; the sleeve is lifted by the lifting mechanism to be matched with the static probe to form an automatic separation mechanism of the nut and the sleeve, so that the problem that residual nut foreign matters in the sleeve can be cleaned when each time of automatic operation is finished is effectively solved, and the influence of blocking the sleeve on subsequent circulating operation is eliminated; and the sleeve can be kept closed when not working, so that other foreign matters are prevented from blocking the sleeve.

Description

Technical Field

[0001] This utility model relates to the technical field of railway maintenance bolt repair equipment, and in particular to a sleeve self-cleaning mechanism and an intelligent tightening device for railway maintenance fastener module bolts. Background Technology

[0002] Railway track fastener bolts refer to bolt assemblies used to fix track fasteners on both sides of railway tracks. In practical applications, railway tracks include ordinary tracks, high-speed rail tracks, and subway tracks. These tracks all fall under the category of railway tracks and have basically the same track structure. The tracks in the existing technology have double rails, and track fasteners are set on both sides of each rail to fix and constrain them to the sleepers.

[0003] In the existing technology, the equipment used to inspect the installation of track fastener bolts generally adopts a manually pushed internal combustion engine trolley structure. The trolley structure is manually pushed on a single track, and a diesel engine is installed on the trolley structure to provide power for tightening and loosening the bolts. The mechanical structure is forcibly stopped, and the lifting and positioning are manually controlled, so as to tighten or loosen the bolt components that need to be inspected on both sides of the single track.

[0004] However, in the above-mentioned technologies, when loosening bolts, the bolts or nuts are easily left inside the sleeve after loosening, which affects subsequent continuous operation and maintenance efficiency. Utility Model Content

[0005] This utility model provides a sleeve self-cleaning mechanism and a smart tightening device for bolts in railway track fastener modules. It is used to solve the problem of cleaning the residual nuts and foreign objects inside the sleeve after each automatic operation, eliminating the blockage of the sleeve and affecting subsequent cycle operations, and keeping the sleeve closed when not in operation to prevent other foreign objects from blocking the sleeve.

[0006] This utility model provides a sleeve self-cleaning mechanism, comprising:

[0007] The fixed plate has two sets. An internal spline shaft is installed at the bottom of the fixed plate in a height-adjustable manner. A probe telescopic hole is provided in the middle of the internal spline shaft. A stationary probe is slidably installed inside the probe telescopic hole. The stationary probe is fixedly connected to the fixed plate. A sleeve is connected to the bottom end of the internal spline shaft.

[0008] The measuring shaft is located at the bottom of the fixed plate and is slidably fitted onto the surface of the inner spline shaft via a spline.

[0009] The lifting motor is located between two sets of fixed plates. The lifting motor is connected to the lifting wall via a ball screw, and both ends of the lifting wall are connected to the internal spline shaft.

[0010] Preferably, a gear protective shell is fixedly connected to the bottom of the fixing plate, and the gear protective shell is fixedly installed inside the intelligent bolt tightening device.

[0011] Preferably, the bottom end of the internal spline shaft is provided with a sleeve connector, and the surface of the sleeve connector is provided with a sleeve fixing hole, through which the internal spline shaft is connected to the sleeve.

[0012] Preferably, the upper end of the internal spline shaft is provided with a spring mounting section, the upper end of the spring mounting section is provided with a lifting arm mounting section, and the top of the lifting arm mounting section is provided with a retaining ring groove.

[0013] Preferably, the sleeve has a sleeve mounting hole on its surface, and the sleeve mounting hole and the sleeve fixing hole are correspondingly set. The fixing pin is passed through the sleeve mounting hole and the sleeve fixing hole in sequence to fix the sleeve and the sleeve connector.

[0014] Preferably, the sleeve has a positioning guide groove inside, a spring tongue is slidably arranged inside the sleeve, a positioning guide pin is fixedly connected to the surface of the spring tongue, the positioning guide pin is slidably inserted into the inside of the positioning guide groove, and a tension spring is fixedly connected between the end of the positioning guide pin away from the spring tongue and the inner wall of the positioning guide groove.

[0015] Preferably, the measuring shaft is installed inside the gear protective housing, and a servo motor is provided on one side of the measuring shaft.

[0016] Preferably, the output end of the servo motor is connected to a reducer, the output end of the reducer is connected to a transmission gear set, the reducer drives the measuring shaft to rotate through the transmission gear set, and a torque sensor is installed inside the measuring shaft.

[0017] Preferably, the lifting arm is equipped with sliding sleeves at both ends, the sliding sleeves are slidably fitted onto the surface of the lifting arm mounting section, and a shock-absorbing spring is provided at the bottom of the sliding sleeve.

[0018] A smart tightening device for bolts in railway track fastener modules includes the aforementioned sleeve self-cleaning mechanism.

[0019] Compared with the prior art, the advantages of this utility model are:

[0020] The lifting mechanism raises the sleeve to cooperate with the stationary probe, forming an automatic separation mechanism between the nut and the sleeve. This effectively solves the problem of cleaning the residual nut and foreign objects inside the sleeve after each operation, eliminating the blockage of the sleeve and affecting subsequent cycle operations. It can also keep the sleeve closed when not in operation to prevent other foreign objects from blocking the sleeve. Attached Figure Description

[0021] The present invention will be described in more detail below based on embodiments and with reference to the accompanying drawings.

[0022] Figure 1 This is an overall schematic diagram of the sleeve self-cleaning mechanism of this utility model;

[0023] Figure 2 This is a cross-sectional schematic diagram of the sleeve self-cleaning mechanism of this utility model;

[0024] Figure 3 This is a utility model Figure 2 Enlarged view of point A in the middle;

[0025] Figure 4 This is a schematic diagram of the internal spline shaft of the sleeve self-cleaning mechanism of this utility model;

[0026] Figure 5 This is a cross-sectional schematic diagram of the sleeve of the self-cleaning sleeve mechanism of this utility model;

[0027] Figure 6 This is a schematic cross-sectional view of the self-cleaning sleeve mechanism of this utility model;

[0028] Figure 7 This is a cross-sectional view of the probe yielding during the operation of the sleeve self-cleaning mechanism of this utility model;

[0029] Figure label:

[0030] Fixing plate 1;

[0031] Measuring shaft 2, torque sensor 21;

[0032] 3. Internal spline shaft, 31. Sleeve connector, 32. Sleeve fixing hole, 33. Spring mounting section, 34. Lifting arm mounting section, 35. Snap ring groove, 36. Probe telescopic hole;

[0033] Sleeve 4, positioning guide groove 41, spring tongue 42, positioning guide pin 43, sleeve mounting hole 44, tension spring 45;

[0034] 5 shock-absorbing springs;

[0035] Stationary probe 6;

[0036] Gear protective housing 7;

[0037] 8. Lifting motor; 81. Ball screw; 82. Lifting arm; 83. Sliding sleeve;

[0038] Servo motor 9, reducer 91, transmission gear set 92. Detailed Implementation

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

[0040] This utility model proposes a sleeve self-cleaning mechanism, comprising:

[0041] A fixed plate 1 is provided, comprising two sets. An internal spline shaft 3 is vertically mounted on the bottom of the fixed plate 1. A probe telescopic hole 36 is provided in the middle of the internal spline shaft 3. A stationary probe 6 is slidably disposed inside the probe telescopic hole 36 and is fixedly connected to the fixed plate 1. A sleeve 4 is connected to the bottom end of the internal spline shaft 3. A sleeve mounting hole 44 is provided on the surface of the sleeve 4. A positioning guide groove 41 is provided inside the sleeve 4. A spring tongue 42 is slidably disposed inside the sleeve 4. A positioning guide pin 43 is fixedly connected to the surface of the spring tongue 42 and slidably inserted into the positioning guide groove 41. The end of the positioning guide pin 43 away from the spring tongue 42 is fixedly connected to the inner wall of the positioning guide groove 41. A tension spring 45 is fixedly connected to the inner spline shaft 3. A spring mounting section 33 is provided at the upper end of the inner spline shaft 3. A lifting arm mounting section 34 is provided at the upper end of the spring mounting section 33. A retaining spring groove 35 is provided at the top of the lifting arm mounting section 34. A sleeve connector 31 is provided at the bottom end of the inner spline shaft 3. A sleeve fixing hole 32 is opened on the surface of the sleeve connector 31. The sleeve mounting hole 44 is correspondingly set with the sleeve fixing hole 32. The fixing pin is passed through the sleeve mounting hole 44 and the sleeve fixing hole 32 in sequence to fix the sleeve 4 and the sleeve connector 31. The inner spline shaft 3 is connected to the sleeve 4 through the sleeve connector 31. A gear protective shell 7 is fixedly connected to the bottom of the fixing plate 1. The gear protective shell 7 is fixedly installed inside the bolt intelligent tightening device.

[0042] Measuring shaft 2 is located at the bottom of the fixed plate 1. Measuring shaft 2 is slidably sleeved on the surface of the inner spline shaft 3 via a spline. Measuring shaft 2 is installed inside the gear protective shell 7. A servo motor 9 is provided on one side of the measuring shaft 2. The output end of the servo motor 9 is connected to a reducer 91. The output end of the reducer 91 is connected to a transmission gear set 92. The reducer 91 drives the measuring shaft 2 to rotate through the transmission gear set 92. A torque sensor 21 is provided inside the measuring shaft 2.

[0043] A lifting motor 8 is disposed between two sets of fixed plates 1. The lifting motor 8 is connected to a lifting wall 82 via a ball screw 81. Sliding sleeves 83 are installed at both ends of the lifting wall 82. The sliding sleeves 83 are slidably sleeved on the surface of the lifting arm mounting section 34. A shock-absorbing spring 5 is provided at the bottom of the sliding sleeves 83.

[0044] A smart tightening device for bolts in railway track fastener modules includes the aforementioned sleeve self-cleaning mechanism.

[0045] Example 1:

[0046] See Figure 1 As shown, Figure 1 This is an overall schematic diagram of the sleeve self-cleaning mechanism of this utility model;

[0047] See Figure 2 As shown, Figure 2 This is a cross-sectional schematic diagram of the sleeve self-cleaning mechanism of this utility model;

[0048] See Figure 3 As shown, Figure 3 This is a utility model Figure 2 Enlarged view of point A in the middle;

[0049] Reference Figures 1-3 As shown, a sleeve self-cleaning mechanism includes:

[0050] 1. Fixed plate; 2. Measuring shaft; 3. Internal spline shaft; 4. Sleeve; 6. Stationary probe; 8. Lifting motor;

[0051] The lifting motor 8 drives the lifting wall 82 to rise and fall through the ball screw 81. The lifting wall 82 drives the two sets of internal spline shafts 3 to rise and fall synchronously, so that the sleeve 4 can separate from or fit with the bolt.

[0052] During the lifting and lowering of the inner spline shaft 3, the stationary probe 6 remains stationary, causing relative motion between the inner spline shaft 3 and the stationary probe 6, thereby allowing the stationary probe 6 to probe into or be withdrawn from the interior of the sleeve 4.

[0053] When the intelligent bolt tightening device is running on the track, it stops after detecting the bolt. At this time, the lifting motor 8 drives the lifting wall 82 to descend through the ball screw 81. At the same time, the lifting wall 82 drives the two sets of sleeves 4 to descend and fit with the bolt.

[0054] When the bolt heights on both sides of the track are inconsistent, the height of the sleeve 4 is adjusted by the extension and retraction of the shock-absorbing spring 5, so as not to affect the descent of the sleeve 4, ensuring that the sleeve 4 on both sides of the track can fit with the bolts, and the bolts on both sides of the track are tightened or loosened synchronously. The torque is measured by the torque sensor 21.

[0055] The servo motor 9 drives the reducer 91 to run, and the reducer 91 drives the measuring shaft 2 to rotate through the transmission gear set 92. The measuring shaft 2 drives the internal spline shaft 3 and the sleeve 4 to rotate synchronously through the internal spline, so that the sleeve 4 can tighten the bolt.

[0056] Example 2:

[0057] See Figure 1 As shown, Figure 1 This is an overall schematic diagram of the sleeve self-cleaning mechanism of this utility model;

[0058] See Figure 2 As shown, Figure 2This is a cross-sectional schematic diagram of the sleeve self-cleaning mechanism of this utility model;

[0059] See Figure 3 As shown, Figure 3 This is a utility model Figure 2 Enlarged view of point A in the middle;

[0060] See Figure 4 As shown, Figure 4 This is a schematic diagram of the internal spline shaft of the sleeve self-cleaning mechanism of this utility model;

[0061] Referring to Embodiment 1, a sleeve self-cleaning mechanism includes:

[0062] 1. Fixed plate; 2. Measuring shaft; 3. Internal spline shaft; 4. Sleeve; 6. Stationary probe; 8. Lifting motor;

[0063] The lifting motor 8 drives the lifting wall 82 to rise and fall through the ball screw 81. The lifting wall 82 drives the two sets of internal spline shafts 3 to rise and fall synchronously, so that the sleeve 4 can separate from or fit with the bolt.

[0064] During the lifting and lowering of the inner spline shaft 3, the stationary probe 6 remains stationary, causing relative motion between the inner spline shaft 3 and the stationary probe 6, thereby allowing the stationary probe 6 to probe into or be withdrawn from the interior of the sleeve 4.

[0065] When the intelligent bolt tightening device is running on the track, it stops after detecting the bolt. At this time, the lifting motor 8 drives the lifting wall 82 to descend through the ball screw 81. At the same time, the lifting wall 82 drives the two sets of sleeves 4 to descend and fit with the bolt.

[0066] When the bolt heights on both sides of the track are inconsistent, the height of the sleeve 4 is adjusted by the extension and retraction of the shock-absorbing spring 5, so as not to affect the descent of the sleeve 4, ensuring that the sleeve 4 on both sides of the track can fit with the bolts, and the bolts on both sides of the track are tightened or loosened synchronously. The torque is measured by the torque sensor 21.

[0067] The servo motor 9 drives the reducer 91 to run, and the reducer 91 drives the measuring shaft 2 to rotate through the transmission gear set 92. The measuring shaft 2 drives the internal spline shaft 3 and the sleeve 4 to rotate synchronously through the internal spline, so that the sleeve 4 can tighten the bolt.

[0068] Based on Example 1, referring to Figure 4As shown, in this embodiment, a probe telescopic hole 36 is provided in the middle of the inner spline shaft 3. After the sleeve 4 has loosened the bolt, the lifting motor 8 drives the lifting wall 82 to rise through the ball screw 81. The lifting wall 82 drives the inner spline shaft 3 and the sleeve 4 to rise. At this time, the inner spline shaft 3 slides on the surface of the stationary probe 6 through the probe telescopic hole 36, so that the end of the stationary probe 6 enters the inside of the sleeve 4 and pushes the spring tongue 42 inside the sleeve 4. The spring tongue 42 pushes the bolt or nut inside the sleeve 4 outward, thereby achieving the purpose of timely removing foreign objects such as bolts inside the sleeve 4 and avoiding affecting subsequent continuous cycle operations.

[0069] Example 3:

[0070] See Figure 1 As shown, Figure 1 This is an overall schematic diagram of the sleeve self-cleaning mechanism of this utility model;

[0071] See Figure 2 As shown, Figure 2 This is a cross-sectional schematic diagram of the sleeve self-cleaning mechanism of this utility model;

[0072] See Figure 3 As shown, Figure 3 This is a utility model Figure 2 Enlarged view of point A in the middle;

[0073] See Figure 4 As shown, Figure 4 This is a schematic diagram of the internal spline shaft of the sleeve self-cleaning mechanism of this utility model;

[0074] See Figure 5 As shown, Figure 5 This is a cross-sectional schematic diagram of the sleeve of the self-cleaning sleeve mechanism of this utility model;

[0075] See Figure 6 As shown, Figure 6 This is a schematic cross-sectional view of the self-cleaning sleeve mechanism of this utility model;

[0076] See Figure 7 As shown, Figure 7 This is a cross-sectional view of the probe yielding during the operation of the sleeve self-cleaning mechanism of this utility model;

[0077] Referring to Embodiment 1, a sleeve self-cleaning mechanism includes:

[0078] 1. Fixed plate; 2. Measuring shaft; 3. Internal spline shaft; 4. Sleeve; 6. Stationary probe; 8. Lifting motor;

[0079] The lifting motor 8 drives the lifting wall 82 to rise and fall through the ball screw 81. The lifting wall 82 drives the two sets of internal spline shafts 3 to rise and fall synchronously, so that the sleeve 4 can separate from or fit with the bolt.

[0080] During the lifting and lowering of the inner spline shaft 3, the stationary probe 6 remains stationary, causing relative motion between the inner spline shaft 3 and the stationary probe 6, thereby allowing the stationary probe 6 to probe into or be withdrawn from the interior of the sleeve 4.

[0081] When the intelligent bolt tightening device is running on the track, it stops after detecting the bolt. At this time, the lifting motor 8 drives the lifting wall 82 to descend through the ball screw 81. At the same time, the lifting wall 82 drives the two sets of sleeves 4 to descend and fit with the bolt.

[0082] When the bolt heights on both sides of the track are inconsistent, the height of the sleeve 4 is adjusted by the extension and retraction of the shock-absorbing spring 5, so as not to affect the descent of the sleeve 4, ensuring that the sleeve 4 on both sides of the track can fit with the bolts, and the bolts on both sides of the track are tightened or loosened synchronously. The torque is measured by the torque sensor 21.

[0083] The servo motor 9 drives the reducer 91 to run, and the reducer 91 drives the measuring shaft 2 to rotate through the transmission gear set 92. The measuring shaft 2 drives the internal spline shaft 3 and the sleeve 4 to rotate synchronously through the internal spline, so that the sleeve 4 can tighten the bolt.

[0084] Referring to Embodiment 2, in this embodiment, a probe telescopic hole 36 is provided in the middle of the inner spline shaft 3. After the sleeve 4 has loosened the bolt, the lifting motor 8 drives the lifting wall 82 to rise through the ball screw 81. The lifting wall 82 drives the inner spline shaft 3 and the sleeve 4 to rise. At this time, the inner spline shaft 3 slides on the surface of the stationary probe 6 through the probe telescopic hole 36, so that the end of the stationary probe 6 enters the inside of the sleeve 4 and pushes the spring tongue 42 inside the sleeve 4. The spring tongue 42 pushes the bolt or nut inside the sleeve 4 outward, thereby achieving the purpose of timely removing foreign objects such as bolts inside the sleeve 4 and avoiding affecting subsequent continuous cycle operations.

[0085] Based on Example 2, referring to Figure 5 As shown, in this embodiment, the spring tongue 42 is slidably installed inside the sleeve 4 via the positioning guide pin 43. When the operation stops, under the pulling force of the tension spring 45, the positioning guide pin 43 drives the spring tongue 42 to move to the inlet end of the sleeve 4, sealing the sleeve 4 and preventing other foreign objects from entering the inside of the sleeve 4 and affecting subsequent operations.

[0086] Example 4:

[0087] See Figure 1 As shown, Figure 1 This is an overall schematic diagram of the sleeve self-cleaning mechanism of this utility model;

[0088] See Figure 2 As shown, Figure 2 This is a cross-sectional schematic diagram of the sleeve self-cleaning mechanism of this utility model;

[0089] See Figure 3 As shown, Figure 3 This is a utility model Figure 2 Enlarged view of point A in the middle;

[0090] See Figure 4 As shown, Figure 4 This is a schematic diagram of the internal spline shaft of the sleeve self-cleaning mechanism of this utility model;

[0091] See Figure 5 As shown, Figure 5 This is a cross-sectional schematic diagram of the sleeve of the self-cleaning sleeve mechanism of this utility model;

[0092] See Figure 6 As shown, Figure 6 This is a schematic cross-sectional view of the self-cleaning sleeve mechanism of this utility model;

[0093] See Figure 7 As shown, Figure 7 This is a cross-sectional view of the probe yielding during the operation of the sleeve self-cleaning mechanism of this utility model;

[0094] Referring to Embodiment 1, a sleeve self-cleaning mechanism includes:

[0095] 1. Fixed plate; 2. Measuring shaft; 3. Internal spline shaft; 4. Sleeve; 6. Stationary probe; 8. Lifting motor;

[0096] The lifting motor 8 drives the lifting wall 82 to rise and fall through the ball screw 81. The lifting wall 82 drives the two sets of internal spline shafts 3 to rise and fall synchronously, so that the sleeve 4 can separate from or fit with the bolt.

[0097] During the lifting and lowering of the inner spline shaft 3, the stationary probe 6 remains stationary, causing relative motion between the inner spline shaft 3 and the stationary probe 6, thereby allowing the stationary probe 6 to probe into or be withdrawn from the interior of the sleeve 4.

[0098] When the intelligent bolt tightening device is running on the track, it stops after detecting the bolt. At this time, the lifting motor 8 drives the lifting wall 82 to descend through the ball screw 81. At the same time, the lifting wall 82 drives the two sets of sleeves 4 to descend and fit with the bolt.

[0099] When the bolt heights on both sides of the track are inconsistent, the height of the sleeve 4 is adjusted by the extension and retraction of the shock-absorbing spring 5, so as not to affect the descent of the sleeve 4, ensuring that the sleeve 4 on both sides of the track can fit with the bolts, and the bolts on both sides of the track are tightened or loosened synchronously. The torque is measured by the torque sensor 21.

[0100] The servo motor 9 drives the reducer 91 to run, and the reducer 91 drives the measuring shaft 2 to rotate through the transmission gear set 92. The measuring shaft 2 drives the internal spline shaft 3 and the sleeve 4 to rotate synchronously through the internal spline, so that the sleeve 4 can tighten the bolt.

[0101] Referring to Embodiment 2, in this embodiment, a probe telescopic hole 36 is provided in the middle of the inner spline shaft 3. After the sleeve 4 has loosened the bolt, the lifting motor 8 drives the lifting wall 82 to rise through the ball screw 81. The lifting wall 82 drives the inner spline shaft 3 and the sleeve 4 to rise. At this time, the inner spline shaft 3 slides on the surface of the stationary probe 6 through the probe telescopic hole 36, so that the end of the stationary probe 6 enters the inside of the sleeve 4 and pushes the spring tongue 42 inside the sleeve 4. The spring tongue 42 pushes the bolt or nut inside the sleeve 4 outward, thereby achieving the purpose of timely removing foreign objects such as bolts inside the sleeve 4 and avoiding affecting subsequent continuous cycle operations.

[0102] Referring to Embodiment 3, in this embodiment, the spring tongue 42 is slidably installed inside the sleeve 4 via the positioning guide pin 43. When the operation stops, under the pulling force of the tension spring 45, the positioning guide pin 43 drives the spring tongue 42 to move to the inlet end of the sleeve 4, sealing the sleeve 4 and preventing other foreign objects from entering the inside of the sleeve 4 and affecting subsequent operations.

[0103] Based on Embodiment 3, the tension spring 45 is omitted in this embodiment. Instead, a compression spring is provided on the side of the spring tongue 42 near the positioning guide groove 41. The compression spring pushes the spring tongue 42 to block the entrance of the sleeve 4. The remaining features are the same as in Embodiment 3.

[0104] Example 5:

[0105] See Figure 1 As shown, Figure 1 This is an overall schematic diagram of the sleeve self-cleaning mechanism of this utility model;

[0106] See Figure 2 As shown, Figure 2 This is a cross-sectional schematic diagram of the sleeve self-cleaning mechanism of this utility model;

[0107] See Figure 3 As shown, Figure 3 This is a utility model Figure 2 Enlarged view of point A in the middle;

[0108] See Figure 4 As shown, Figure 4 This is a schematic diagram of the internal spline shaft of the sleeve self-cleaning mechanism of this utility model;

[0109] See Figure 5 As shown, Figure 5 This is a cross-sectional schematic diagram of the sleeve of the self-cleaning sleeve mechanism of this utility model;

[0110] See Figure 6 As shown, Figure 6This is a schematic cross-sectional view of the self-cleaning sleeve mechanism of this utility model;

[0111] See Figure 7 As shown, Figure 7 This is a cross-sectional view of the probe yielding during the operation of the sleeve self-cleaning mechanism of this utility model;

[0112] Referring to Embodiment 1, a sleeve self-cleaning mechanism includes:

[0113] 1. Fixed plate; 2. Measuring shaft; 3. Internal spline shaft; 4. Sleeve; 6. Stationary probe; 8. Lifting motor;

[0114] The lifting motor 8 drives the lifting wall 82 to rise and fall through the ball screw 81. The lifting wall 82 drives the two sets of internal spline shafts 3 to rise and fall synchronously, so that the sleeve 4 can separate from or fit with the bolt.

[0115] During the lifting and lowering of the inner spline shaft 3, the stationary probe 6 remains stationary, causing relative motion between the inner spline shaft 3 and the stationary probe 6, thereby allowing the stationary probe 6 to probe into or be withdrawn from the interior of the sleeve 4.

[0116] When the intelligent bolt tightening device is running on the track, it stops after detecting the bolt. At this time, the lifting motor 8 drives the lifting wall 82 to descend through the ball screw 81. At the same time, the lifting wall 82 drives the two sets of sleeves 4 to descend and fit with the bolt.

[0117] When the bolt heights on both sides of the track are inconsistent, the height of the sleeve 4 is adjusted by the extension and retraction of the shock-absorbing spring 5, so as not to affect the descent of the sleeve 4, ensuring that the sleeve 4 on both sides of the track can fit with the bolts, and the bolts on both sides of the track are tightened or loosened synchronously. The torque is measured by the torque sensor 21.

[0118] The servo motor 9 drives the reducer 91 to run, and the reducer 91 drives the measuring shaft 2 to rotate through the transmission gear set 92. The measuring shaft 2 drives the internal spline shaft 3 and the sleeve 4 to rotate synchronously through the internal spline, so that the sleeve 4 can tighten the bolt.

[0119] Referring to Embodiment 2, in this embodiment, a probe telescopic hole 36 is provided in the middle of the inner spline shaft 3. After the sleeve 4 has loosened the bolt, the lifting motor 8 drives the lifting wall 82 to rise through the ball screw 81. The lifting wall 82 drives the inner spline shaft 3 and the sleeve 4 to rise. At this time, the inner spline shaft 3 slides on the surface of the stationary probe 6 through the probe telescopic hole 36, so that the end of the stationary probe 6 enters the inside of the sleeve 4 and pushes the spring tongue 42 inside the sleeve 4. The spring tongue 42 pushes the bolt or nut inside the sleeve 4 outward, thereby achieving the purpose of timely removing foreign objects such as bolts inside the sleeve 4 and avoiding affecting subsequent continuous cycle operations.

[0120] Referring to Embodiment 3, in this embodiment, the spring tongue 42 is slidably installed inside the sleeve 4 via the positioning guide pin 43. When the operation stops, under the pulling force of the tension spring 45, the positioning guide pin 43 drives the spring tongue 42 to move to the inlet end of the sleeve 4, sealing the sleeve 4 and preventing other foreign objects from entering the inside of the sleeve 4 and affecting subsequent operations.

[0121] Based on Embodiment 3, in this embodiment, the sleeve 4 is connected to the sleeve connector 31 by an elastic retaining ball, which facilitates the quick replacement of the sleeve 4 and improves maintenance efficiency. The other features are the same as in Embodiment 3.

[0122] Example 6:

[0123] See Figure 1 As shown, Figure 1 This is an overall schematic diagram of the sleeve self-cleaning mechanism of this utility model;

[0124] See Figure 2 As shown, Figure 2 This is a cross-sectional schematic diagram of the sleeve self-cleaning mechanism of this utility model;

[0125] See Figure 3 As shown, Figure 3 This is a utility model Figure 2 Enlarged view of point A in the middle;

[0126] See Figure 4 As shown, Figure 4 This is a schematic diagram of the internal spline shaft of the sleeve self-cleaning mechanism of this utility model;

[0127] See Figure 5 As shown, Figure 5 This is a cross-sectional schematic diagram of the sleeve of the self-cleaning sleeve mechanism of this utility model;

[0128] See Figure 6 As shown, Figure 6 This is a schematic cross-sectional view of the self-cleaning sleeve mechanism of this utility model;

[0129] See Figure 7 As shown, Figure 7 This is a cross-sectional view of the probe yielding during the operation of the sleeve self-cleaning mechanism of this utility model;

[0130] Referring to Embodiment 1, a sleeve self-cleaning mechanism includes:

[0131] 1. Fixed plate; 2. Measuring shaft; 3. Internal spline shaft; 4. Sleeve; 6. Stationary probe; 8. Lifting motor;

[0132] The lifting motor 8 drives the lifting wall 82 to rise and fall through the ball screw 81. The lifting wall 82 drives the two sets of internal spline shafts 3 to rise and fall synchronously, so that the sleeve 4 can separate from or fit with the bolt.

[0133] During the lifting and lowering of the inner spline shaft 3, the stationary probe 6 remains stationary, causing relative motion between the inner spline shaft 3 and the stationary probe 6, thereby allowing the stationary probe 6 to probe into or be withdrawn from the interior of the sleeve 4.

[0134] When the intelligent bolt tightening device is running on the track, it stops after detecting the bolt. At this time, the lifting motor 8 drives the lifting wall 82 to descend through the ball screw 81. At the same time, the lifting wall 82 drives the two sets of sleeves 4 to descend and fit with the bolt.

[0135] When the bolt heights on both sides of the track are inconsistent, the height of the sleeve 4 is adjusted by the extension and retraction of the shock-absorbing spring 5, so as not to affect the descent of the sleeve 4, ensuring that the sleeve 4 on both sides of the track can fit with the bolts, and the bolts on both sides of the track are tightened or loosened synchronously. The torque is measured by the torque sensor 21.

[0136] The servo motor 9 drives the reducer 91 to run, and the reducer 91 drives the measuring shaft 2 to rotate through the transmission gear set 92. The measuring shaft 2 drives the internal spline shaft 3 and the sleeve 4 to rotate synchronously through the internal spline, so that the sleeve 4 can tighten the bolt.

[0137] Referring to Embodiment 2, in this embodiment, a probe telescopic hole 36 is provided in the middle of the inner spline shaft 3. After the sleeve 4 has loosened the bolt, the lifting motor 8 drives the lifting wall 82 to rise through the ball screw 81. The lifting wall 82 drives the inner spline shaft 3 and the sleeve 4 to rise. At this time, the inner spline shaft 3 slides on the surface of the stationary probe 6 through the probe telescopic hole 36, so that the end of the stationary probe 6 enters the inside of the sleeve 4 and pushes the spring tongue 42 inside the sleeve 4. The spring tongue 42 pushes the bolt or nut inside the sleeve 4 outward, thereby achieving the purpose of timely removing foreign objects such as bolts inside the sleeve 4 and avoiding affecting subsequent continuous cycle operations.

[0138] Referring to Embodiment 3, in this embodiment, the spring tongue 42 is slidably installed inside the sleeve 4 via the positioning guide pin 43. When the operation stops, under the pulling force of the tension spring 45, the positioning guide pin 43 drives the spring tongue 42 to move to the inlet end of the sleeve 4, sealing the sleeve 4 and preventing other foreign objects from entering the inside of the sleeve 4 and affecting subsequent operations.

[0139] Based on Embodiment 3, this embodiment uses a pneumatic rod and a cylinder rod to drive the lifting wall 82 to rise and fall. The other features are the same as in Embodiment 3.

[0140] Although the present invention has been described with reference to preferred embodiments, various modifications can be made thereto and components can be replaced with equivalents without departing from the scope of the invention. In particular, the technical features mentioned in the various embodiments can be combined in any manner, provided there is no structural conflict. The present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A sleeve self-cleaning mechanism, characterized in that, include: The fixing plate is provided in two sets. An internal spline shaft is installed at the bottom of the fixing plate in a height-adjustable manner. A probe telescopic hole is provided in the middle of the internal spline shaft. A stationary probe is slidably arranged inside the probe telescopic hole. The stationary probe is fixedly connected to the fixing plate. A sleeve is connected to the bottom end of the internal spline shaft. A measuring shaft is disposed at the bottom of the fixed plate and is slidably sleeved on the surface of the inner spline shaft via a spline. A lifting motor is provided, which is located between the two sets of fixed plates. The lifting motor is connected to a lifting wall via a ball screw, and both ends of the lifting wall are connected to an internal spline shaft.

2. The sleeve self-cleaning mechanism according to claim 1, characterized in that, A gear protective shell is fixedly connected to the bottom of the fixing plate, and the gear protective shell is fixedly installed inside the intelligent bolt tightening device.

3. The sleeve self-cleaning mechanism according to claim 2, characterized in that, The bottom end of the internal spline shaft is provided with a sleeve connector, and the surface of the sleeve connector is provided with a sleeve fixing hole. The internal spline shaft is connected to the sleeve through the sleeve connector.

4. The sleeve self-cleaning mechanism according to claim 3, characterized in that, The upper end of the internal spline shaft is provided with a spring mounting section, the upper end of the spring mounting section is provided with a lifting arm mounting section, and the top of the lifting arm mounting section is provided with a retaining spring groove.

5. The sleeve self-cleaning mechanism according to claim 4, characterized in that, The sleeve has a sleeve mounting hole on its surface, which corresponds to the sleeve fixing hole. The fixing pin is passed through the sleeve mounting hole and the sleeve fixing hole in sequence to fix the sleeve to the sleeve connector.

6. The sleeve self-cleaning mechanism according to claim 5, characterized in that, The sleeve has a positioning guide groove inside, and a spring tongue is slidably disposed inside the sleeve. A positioning guide pin is fixedly connected to the surface of the spring tongue. The positioning guide pin is slidably inserted into the inside of the positioning guide groove. A tension spring is fixedly connected between the end of the positioning guide pin away from the spring tongue and the inner wall of the positioning guide groove.

7. The sleeve self-cleaning mechanism according to claim 6, characterized in that, The measuring shaft is installed inside the gear protective housing, and a servo motor is provided on one side of the measuring shaft.

8. The sleeve self-cleaning mechanism according to claim 7, characterized in that, The output end of the servo motor is connected to a speed reducer, and the output end of the speed reducer is connected to a transmission gear set. The speed reducer drives the measuring shaft to rotate through the transmission gear set, and a torque sensor is installed inside the measuring shaft.

9. The sleeve self-cleaning mechanism according to claim 8, characterized in that, The lifting arm is equipped with sliding sleeves at both ends, which are slidably fitted onto the surface of the lifting arm mounting section, and a shock-absorbing spring is provided at the bottom of the sliding sleeve.

10. A smart tightening device for bolts in railway track fastener modules, comprising the sleeve self-cleaning mechanism described in any one of claims 1-9.

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