Locking mechanism for intelligent steel rail finishing and grinding equipment

Abstract

The invention relates to a locking mechanism for intelligent steel rail finishing and grinding equipment, and relates to the technical field of steel rail repair, the locking mechanism comprises a mounting plate slidably connected in a cross beam, the mounting plate is used for mounting a grinding device, a tension screw penetrates through the mounting plate and is fixedly connected with the mounting plate, and the tension screw penetrates through the cross beam and is fixedly connected with a sliding table; two sliding blocks are arranged on the sliding table, the sliding table abuts against the sliding blocks, the abutting faces of the sliding table and the sliding blocks are inclined faces, the two sliding blocks penetrate through and are in threaded connection with the same two-way screw rod, and when the two-way screw rod rotates, the two sliding blocks move towards the sides close to each other or away from each other. The end, away from one end of the mounting plate, of the tension screw is slidably connected to the two-way screw, and a driving mechanism used for driving the two-way screw to rotate is arranged on one side of the two-way screw. The rail polishing and repairing device has the effect of firmly fixing the position of the polishing device in the rail polishing and repairing process.

Description

Technical Field

[0001] The present application relates to the technical field of rail repair, and in particular to a locking mechanism for intelligent rail dressing and grinding equipment. Background Art

[0002] Railway is an important part of my country's transportation, and railway track is one of the basic infrastructures of railway transportation. In particular, turnout sections and small radius curves are the three weak links of railways together with curves and joints due to their large number, complex structure, short service life, speed limit, low driving safety, and large maintenance investment.

[0003] When the rails on the railway line are rolled to a certain extent, their contour shape changes, the contact geometry between the wheelset and the rails deteriorates, which damages the stability of operation and the service life of the rails. In order to better adapt to the high-speed development of modern railways.

[0004] In the related art, rail trimming and grinding equipment is usually used to grind the profile of railway rails. During the grinding process, in order to increase the grinding range of the grinding device, a crossbeam is usually set, and the grinding device is driven to move laterally on the crossbeam above the rail to increase the grinding range of the grinding device. However, when the grinding device reaches a suitable position, the grinding device needs to be fixed at the grinding position. Therefore, a locking mechanism is urgently needed to firmly fix the position of the grinding device after the grinding device completes the lateral movement. Summary of the invention

[0005] In order to firmly fix the position of the grinding device during the rail grinding and repair process, the present application provides a locking mechanism for intelligent rail repair and grinding equipment.

[0006] The locking mechanism for the intelligent rail dressing and grinding equipment provided in this application adopts the following technical solution: A locking mechanism for intelligent rail dressing and grinding equipment includes a mounting plate slidably connected to a crossbeam, the mounting plate is used to install a grinding device, a tension screw is passed through and fixedly connected to the mounting plate, the tension screw passes through the crossbeam and is fixedly connected to a slide, two sliders are provided on the slide, the slide abuts against the slider, and the abutting surfaces of the slide and the slider are set as inclined surfaces, the two sliders are passed through and threadedly connected with the same bidirectional screw, when the bidirectional screw rotates, the two sliders move toward or away from each other, the end of the tension screw away from one end of the mounting plate is slidably connected to the bidirectional screw, and one side of the bidirectional screw is provided with a driving mechanism for driving the bidirectional screw to rotate.

[0007] By adopting the above technical solution, when the mounting plate on which the grinding device is installed reaches a suitable position, the bidirectional screw can be driven to rotate through the driving mechanism, so that the slider slides along the bidirectional screw to the side close to each other, and then the slider applies an external force to one side of the beam to the slide through the inclined surface of the slide, so that the slide is pressed against the beam, and then the position of the tension screw and the mounting plate is fixed, thereby the position of the grinding device can be quickly and stably fixed during the grinding and repair process of the rails.

[0008] Optionally, the driving mechanism includes a locking motor reducer, a driving gear is fixedly connected to the output shaft of the locking motor reducer, a hexagonal hole gear is meshed on one side of the driving gear, a hexagonal shaft is passed through and slidably connected to the hexagonal hole gear, the hexagonal shaft is coaxially arranged with the hexagonal hole gear, and a connecting piece for connecting the hexagonal shaft and the bidirectional screw is provided between the two.

[0009] By adopting the above technical solution, the locking motor reducer can be started to drive the driving gear to rotate, and then the driving gear drives the hexagonal hole gear to rotate, and then the hexagonal shaft drives the bidirectional screw to rotate through the connecting piece.

[0010] Optionally, a hexagonal sleeve is fixedly connected inside the hexagonal hole gear, the hexagonal shaft is passed through and slidably connected inside the hexagonal sleeve, the hexagonal sleeve is coaxially arranged with the hexagonal hole gear, and a positioning sleeve is arranged outside the hexagonal sleeve and rotatably connected.

[0011] By adopting the above technical solution, the sliding direction of the hexagonal sleeve can be limited by the positioning sleeve, and the hexagonal shaft can be slid in the hexagonal sleeve to meet the requirement of the driving mechanism moving together with the mounting plate.

[0012] Optionally, a transmission box is arranged outside the driving gear, and the transmission box is fixedly connected to the outer wall of the positioning sleeve and the locking motor reducer.

[0013] By adopting the above technical solution, the hexagonal gear and the driving gear etc. in the transmission case can be protected by setting up the transmission case.

[0014] Optionally, the connecting member is configured as a cross universal coupling, one end of the cross universal coupling is connected to the hexagonal shaft, and the other end of the cross universal coupling is connected to the bidirectional screw.

[0015] By adopting the above technical solution, the hexagonal shaft and the bidirectional screw can be connected together through the cross universal joint coupling, so as to reliably transmit torque and motion.

[0016] The locking block is fixedly mounted on the locking cam and is adapted to engage the locking cam at one end of the locking cam and engage with the locking cam at the other end of the locking cam.

[0017] By adopting the above technical solution, when the slider on the bidirectional screw rod disengages from the inclined surface and continues to move toward each other, the slider can abut against the lifting rod, causing the two lifting rods to slide toward each other in the fixed shell, and then the inclined block abuts against the lifting block, and the two inclined blocks will apply external force to the lifting block when moving toward each other, so that the lifting block drives the connecting rod to slide toward the side away from the beam, and finally the locking block is pressed against the beam, thereby further improving the stability of the mounting plate on the beam.

[0018] Optionally, a return spring is fixedly connected between the lifting rod and the inner wall of the fixed shell, and the return spring corresponds to the lifting rod one by one and is sleeved on the lifting rod.

[0019] By adopting the above technical solution, the position of the lifting rod can be limited by the reset spring, which facilitates the cooperation between the lifting rod and the slider next time.

[0020] Optionally, the locking block includes a lower block fixedly connected to the connecting rod, an upper block is provided on the side of the lower block close to the cross beam, the upper block is slidably connected to the connecting rod, a telescopic rod is fixedly connected between the lower block and the upper block, and a support spring is provided in the telescopic rod for supporting the telescopic rod.

[0021] By adopting the above technical solution, the sliding direction between the upper block and the lower block can be limited by the telescopic rod, and the abutment of the entire locking block and the cross beam can be achieved by the abutment of the upper block and the cross beam.

[0022] In summary, the present application includes at least one of the following beneficial technical effects: 1. The bidirectional screw can be driven to rotate by the driving mechanism, so that the slider slides along the bidirectional screw to the side close to each other, and then the slider applies an external force to the side of the beam through the inclined surface of the slide, so that the slide is pressed against the beam, and the position of the tension screw and the mounting plate is fixed, thereby the grinding device can be quickly and stably fixed in the process of rail grinding and repair; 2. The locking motor reducer can be started to drive the driving gear to rotate, and then the driving gear drives the hexagonal hole gear to rotate, and then the hexagonal shaft drives the bidirectional screw to rotate through the connecting piece; 3. The sliding direction of the hexagonal sleeve can be limited by the positioning sleeve, and the hexagonal shaft can be slid in the hexagonal sleeve to meet the requirement that the driving mechanism moves together with the mounting plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the overall structure of Example 1 of the present application; Figure 2 is a schematic structural diagram of the driving mechanism of Example 1 of the present application; Figure 3 is a schematic structural diagram of a mounting plate of Example 1 of the present application; Figure 4 It is a schematic diagram of the overall structure of Example 2 of the present application; Figure 5 is a structural schematic diagram of a slider according to Embodiment 2 of the present application; Figure 6 yes Figure 5 Schematic diagram of the enlarged structure of part A.

[0024] In the figure, 1. mounting plate; 11. groove; 2. tension screw; 3. slide; 4. bidirectional screw; 5. slider; 6. driving mechanism; 61. locking motor reducer; 62. driving gear; 63. hexagonal hole gear; 64. hexagonal shaft; 65. connecting piece; 66. hexagonal sliding sleeve; 67. positioning sleeve; 68. transmission housing; 8. locking block; 81. lower block; 82. upper block; 83. telescopic rod; 84. supporting spring; 9. connecting rod; 91. lifting block; 10. fixing shell; 101. lifting rod; 1011. inclined block; 102. reset spring. DETAILED DESCRIPTION

[0025] The following is combined with Figure 1 -Attached Figure 6 , further details of this application are given.

[0026] Example 1 Intelligent rail dressing and grinding equipment with locking mechanism, reference Figure 1 , Figure 2 and Figure 3, including a mounting plate 1 in a sliding connection with a crossbeam, in this embodiment, the crossbeam is arranged in a rectangular parallelepiped shape. The mounting plate 1 is used to install a grinding device on the mounting plate 1, and the structure of the crossbeam and the mounting plate in the attached figure is that the grinding device is not installed. The crossbeam is provided with a sliding hole for the screw to slide, and the sliding hole is arranged along the length direction of the crossbeam. A tension screw 2 is passed through and fixedly connected to the mounting plate 1, and the tension screw 2 passes through the crossbeam and is fixedly connected to a slide 3, and two sliders 5 are arranged on the slide 3, and the slide 3 is in contact with the slider 5, and the contact surface of the slide 3 and the slider 5 is arranged as an inclined surface, and the lower end of the slider 5 is arranged as an inclined surface adapted to the inclined surface of the slide 3.

[0027] The two sliders 5 are provided with and threadedly connected with the same bidirectional screw 4, the end of the tension screw 2 away from the mounting plate 1 is slidably connected to the bidirectional screw 4, and one side of the bidirectional screw 4 is provided with a driving mechanism 6 for driving the bidirectional screw 4 to rotate. When the bidirectional screw 4 rotates, the two sliders 5 move toward or away from each other.

[0028] The driving mechanism 6 includes a locking motor reducer 61 and a transmission box 68, and the transmission box 68 is fixedly connected to the crossbeam. The locking motor reducer 61 is fixedly connected in the transmission box 68, and a driving gear 62 is fixedly connected to the output shaft of the locking motor reducer 61, and the driving gear 62 is coaxially arranged with the output shaft of the locking motor reducer 61. A hexagonal hole gear 63 is meshed on one side of the driving gear 62, and a hexagonal shaft 64 is inserted in the hexagonal hole gear 63. A hexagonal sleeve 66 is fixedly connected in the hexagonal hole gear 63, and the hexagonal shaft 64 is inserted and slidably connected in the hexagonal sleeve 66. The hexagonal sleeve 66 is coaxially arranged with the hexagonal hole gear 63, and a positioning sleeve 67 is arranged and rotatably connected on the outer surface of the hexagonal sleeve 66, and the positioning sleeve 67 is fixedly connected to the transmission box 68.

[0029] A connector 65 is provided between the hexagonal shaft 64 and the bidirectional screw 4 for connecting the two. The connector 65 in this embodiment is set as a cross universal coupling, one end of which is fixedly connected to the hexagonal shaft 64, and the other end of which is fixedly connected to the bidirectional screw 4. In order to ensure the synchronization of the master and slave ends, the cross universal shaft coupling adopts a double-connection type in actual applications, and the double-connection connection method can be set to welding or flange connection through bolts. The cross shaft universal coupling utilizes the characteristics of its mechanism, that is, the two shafts are not on the same axis, and the two connected shafts can be continuously rotated when there is an axis angle β, and the torque and motion can be reliably transmitted.

[0030] The implementation principle of the embodiment 1 of the present application is as follows: when the mounting plate 1 equipped with the grinding device reaches the appropriate position, the locking motor reducer 61 can be started to drive the driving gear 62 to rotate, and then the driving gear 62 drives the hexagonal hole gear 63 to rotate, and then the hexagonal shaft 64 drives the bidirectional screw 4 to rotate through the cross universal coupling. In this way, the locking motor reducer 61 drives the bidirectional screw 4 to rotate. The slider 5 slides along the bidirectional screw 4 to the side close to each other, and then the slider 5 applies an external force to the side of the beam to the slide 3 through the inclined surface of the slide 3, so that the slide 3 is pressed against the beam, and then the position of the tension screw 2 and the mounting plate 1 is fixed.

[0031] Example 2 The difference from Example 1 is: Figure 4 , Figure 5 and Figure 6 A groove 11 is provided on one side of the mounting plate 1 close to the slide 3, and a locking block 8 is provided in the groove 11. The locking block 8 includes an upper block 82 and a lower block 81, and the end faces of the upper block 82 and the lower block 81 are arranged in parallel. The upper block 82 and the lower block 81 are both arranged in a rectangular parallelepiped shape, and the upper block 82 is located on one side of the groove 11 close to the crossbeam. Two telescopic rods 83 are fixedly connected between the lower block 81 and the upper block 82, and the length direction of the telescopic rod 83 is perpendicular to the end faces of the upper block 82 and the lower block 81. A support spring 84 for supporting the telescopic rod 83 is provided in the telescopic rod 83, and under the action of the support spring 84, the telescopic rod 83 remains in an extended state.

[0032] The end of the lower block 81 close to the upper block 82 is fixedly connected with a connecting rod 9, and the connecting rod 9 is arranged parallel to the telescopic rod 83. The end of the connecting rod 9 away from the lower block 81 passes through the upper block 82, the crossbeam and the slide 3. The upper block 82 is slidably connected to the connecting rod 9, and the connecting rod 9 can slide on the crossbeam and the slide 3. The upper end of the slide 3 is fixedly connected with a fixed shell 10, the end of the connecting rod 9 is placed in the fixed shell 10, and the end of the connecting rod 9 placed in the fixed shell 10 is fixedly connected with a lifting block 91, and the lifting blocks 91 are set to two and are respectively located on both sides of the connecting rod 9, and the two lifting blocks 91 are located at the same height. Two lifting rods 101 are inserted and slidably connected in the fixed shell 10, and the lifting rods 101 correspond to the lifting blocks 91 one by one. One end of the lifting rod 101 is placed outside the fixed shell 10, and the sliding direction of the lifting rod 101 in the fixed shell 10 is parallel to the axial direction of the bidirectional screw 4. A return spring 102 is fixedly connected between the lifting rod 101 and the inner wall of the fixed shell 10. The return spring 102 corresponds to the lifting rod 101 one by one and is sleeved on the lifting rod 101. When the slider 5 is not in contact with the lifting rod 101, the return spring 102 keeps the inclined block 1011 in a state of not in contact with the lifting block 91.

[0033] The lifting rod 101 corresponds to the slider 5 one by one. One end of the lifting rod 101 close to the lifting block 91 is fixedly connected with an inclined block 1011 , and the inclined surface of the inclined block 1011 abuts against the lower end of the lifting block 91 .

[0034] Thus, when the slider 5 on the bidirectional screw 4 is separated from the inclined surface of the slide 3 and continues to move toward the side close to each other, the slider can abut against the lifting rod 101, so that the two lifting rods 101 slide toward the side close to each other in the fixed shell 10, so that the reset spring 102 is compressed. Then the inclined block 1011 abuts against the lifting block 91, and when the two inclined blocks 1011 move toward the side close to each other, an external force is applied to the lifting block 91, so that the lifting block 91 drives the connecting rod 9 to slide toward the side away from the cross beam. At this time, the support spring 84 is compressed, and the lower block 81 moves upward and gradually applies a force to the upper block 82. Finally, the upper block 82 in the locking block 8 is pressed against the cross beam, thereby further improving the stability of the mounting plate 1 on the cross beam.

[0035] The embodiments of this specific implementation are all preferred embodiments of the present application, and are not intended to limit the protection scope of the present application. The same components are represented by the same figure marks. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. The locking mechanism for intelligent rail dressing and grinding equipment is characterized by: The invention comprises a mounting plate (1) slidably connected to a cross beam, wherein the mounting plate (1) is used to mount a grinding device, a tension screw (2) is passed through the mounting plate (1) and fixedly connected, the tension screw (2) passes through the cross beam and is fixedly connected to a slide table (3), two sliders (5) are provided on the slide table (3), the slide table (3) abuts against the sliders (5), and the abutting surfaces of the slide table (3) and the sliders (5) are arranged as inclined surfaces, the two sliders (5) are passed through and threadedly connected with the same bidirectional screw (4), when the bidirectional screw (4) rotates, the two sliders (5) move toward or away from each other, the end of the tension screw (2) away from one end of the mounting plate (1) is slidably connected to the bidirectional screw (4), and one side of the bidirectional screw (4) is provided with a driving mechanism (6) for driving the bidirectional screw (4) to rotate.

2. The locking mechanism for intelligent rail dressing and grinding equipment according to claim 1, characterized in that: The driving mechanism (6) comprises a locking motor reducer (61), an output shaft of the locking motor reducer (61) being fixedly connected to a driving gear (62), one side of the driving gear (62) being meshed with a hexagonal hole gear (63), a hexagonal shaft (64) being inserted into and slidably connected to the hexagonal hole gear (63), the hexagonal shaft (64) being coaxially arranged with the hexagonal hole gear (63), and a connecting piece (65) for connecting the hexagonal shaft (64) and the bidirectional screw (4) being arranged between the two.

3. The locking mechanism for intelligent rail dressing and grinding equipment according to claim 2 is characterized in that: A hexagonal sleeve (66) is fixedly connected inside the hexagonal hole gear (63), the hexagonal shaft (64) is passed through and slidably connected inside the hexagonal sleeve (66), the hexagonal sleeve (66) is coaxially arranged with the hexagonal hole gear (63), and a positioning sleeve (67) is arranged outside the hexagonal sleeve (66) and is rotatably connected.

4. The locking mechanism for intelligent rail dressing and grinding equipment according to claim 3 is characterized in that: A transmission housing (68) is disposed outside the driving gear (62), and the transmission housing (68) is fixedly connected to the outer wall of the positioning sleeve (67) and the locking motor reducer (61).

5. The locking mechanism for intelligent rail dressing and grinding equipment according to claim 2, characterized in that: The connecting member (65) is configured as a cross universal coupling, one end of the cross universal coupling is connected to the hexagonal shaft (64), and the other end of the cross universal coupling is connected to the bidirectional screw (4).

6. The locking mechanism for intelligent rail dressing and grinding equipment according to claim 1, characterized in that: A groove (11) is provided on one side of the mounting plate (1) close to the slide (3), a locking block (8) is provided in the groove (11), a connecting rod (9) is fixedly connected to the upper end of the locking block (8), one end of the connecting rod (9) passes through the crossbeam and the slide (3), a fixed shell (10) is fixedly connected to the upper end of the slide (3), an end of the connecting rod (9) is placed in the fixed shell (10), a lifting block (91) is fixedly connected to the connecting rod (9), a lifting rod (101) is passed through and slidably connected to the fixed shell (10), one end of the lifting rod (101) is placed outside the fixed shell (10), and the lifting block (91) is fixedly connected to the connecting rod (9). The sliding direction of the lifting rod (101) in the fixed shell (10) is parallel to the axial direction of the bidirectional screw (4), the lifting rod (101) corresponds to the slider (5) one by one, and the end of the lifting rod (101) close to the lifting block (91) is fixedly connected with an inclined block (1011), and the inclined surface of the inclined block (1011) abuts against the lower end of the lifting block (91). When the inclined block (1011) abuts against the lifting block (91) and the two inclined blocks (1011) move toward each other, the connecting rod (9) slides away from the beam and makes the locking block (8) press against the beam.

7. The locking mechanism for intelligent rail dressing and grinding equipment according to claim 6, characterized in that: A return spring (102) is fixedly connected between the lifting rod (101) and the inner wall of the fixed shell (10); the return spring (102) corresponds one-to-one to the lifting rod (101) and is sleeved on the lifting rod (101).

8. The locking mechanism for intelligent rail dressing and grinding equipment according to claim 7, characterized in that: The locking block (8) comprises a lower block (81) fixedly connected to the connecting rod (9); an upper block (82) is provided on a side of the lower block (81) close to the cross beam; the upper block (82) is slidably connected to the connecting rod (9); a telescopic rod (83) is fixedly connected between the lower block (81) and the upper block (82); a support spring (84) for supporting the telescopic rod (83) is provided inside the telescopic rod (83).

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