Locking mechanism for intelligent rail trimming and grinding equipment

Abstract

This application relates to a locking mechanism for an intelligent rail trimming and grinding device, and relates to the technical field of rail repair. It includes a mounting plate slidably connected inside a cross beam. The mounting plate is used to mount a grinding device. A tension screw is inserted through and fixedly connected to the mounting plate. The tension screw passes through the cross beam and is fixedly connected to a sliding table. Two sliders are provided on the sliding table. The sliding table abuts against the sliders, and the abutting surface between the sliding table and the sliders is set as an inclined surface. The same bidirectional screw is inserted through and threadedly connected to the two sliders. When the bidirectional screw rotates, the two sliders move towards one side of approaching or separating from each other. The end of the tension screw away from the mounting plate is slidably connected to the bidirectional screw. A driving mechanism is provided on one side of the bidirectional screw for driving the bidirectional screw to rotate. This application has the effect of firmly fixing the position of the grinding device during the process of rail grinding and repair.

Description

Technical Field

[0001] This application relates to the technical field of rail repair, and particularly to a locking mechanism for an intelligent rail trimming and grinding device. Background Art

[0002] Railways are an important part of China's transportation, and railway tracks are one of the infrastructure for railway transportation. Especially in turnout sections and small-radius curves, due to their large quantity, complex structure, short service life, speed limitation, low train operation safety, and high maintenance investment, they, together with curves and joints, are the three major weak links of railways.

[0003] After the rail on the railway line is subjected to a certain degree of rolling, its profile shape changes, the contact geometry between the wheel set and the rail deteriorates, and the running smoothness and the service life of the rail are damaged. In order to better adapt to the high-speed development of modern railways.

[0004] In related technologies, a rail trimming and grinding device 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 cross beam is usually set, and the grinding device is driven to move horizontally on the cross beam above the rail to increase the grinding range of the grinding device. However, when the grinding device reaches the appropriate position, it is necessary to fix the grinding device at the grinding position. Therefore, there is an urgent need for a locking mechanism that can firmly fix the position of the grinding device after the horizontal movement of the grinding device is completed. Summary of the Invention

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

[0006] The locking mechanism for the intelligent rail trimming and grinding device provided by this application adopts the following technical solutions:

[0007] The locking mechanism for the intelligent rail trimming and grinding device includes a mounting plate slidably connected inside the cross beam. The mounting plate is used to mount the grinding device. A tension screw is inserted through and fixedly connected to the mounting plate. The tension screw passes through the cross beam and is fixedly connected to a sliding table. Two sliders are provided on the sliding table. The sliding table abuts against the sliders, and the abutting surface between the sliding table and the sliders is set as an inclined surface. The same bidirectional screw is inserted through and threadedly connected to the two sliders. When the bidirectional screw rotates, the two sliders move towards one side close to or away from each other. The end of the tension screw away from the mounting plate is slidably connected to the bidirectional screw. A driving mechanism is provided on one side of the bidirectional screw for driving the bidirectional screw to rotate.

[0008] By adopting the above technical solution, when the mounting plate equipped with the grinding device reaches the appropriate position, the driving mechanism can drive the bidirectional screw to rotate, so that the sliders slide along the bidirectional screw towards the side where they approach each other. Furthermore, the sliders apply an external force towards the crossbeam to the slide table through the inclined surface of the slide table, causing the slide table to be tightly pressed against the crossbeam. As a result, the positions of the tension screw and the mounting plate are fixed. Thus, during the process of railway track grinding and repair, the position of the grinding device can be firmly fixed quickly and stably.

[0009] 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 with one side of the driving gear. A hexagonal shaft is inserted and slidably connected inside the hexagonal hole gear. The hexagonal shaft is coaxially arranged with the hexagonal hole gear. A connecting member for connecting the two is provided between the hexagonal shaft and the bidirectional screw.

[0010] By adopting the above technical solution, the locking motor reducer can be started to drive the driving gear to rotate. Furthermore, the driving gear drives the hexagonal hole gear to rotate. Then, the hexagonal shaft drives the bidirectional screw to rotate through the connecting member.

[0011] Optionally, a hexagonal sliding sleeve is fixedly connected inside the hexagonal hole gear. The hexagonal shaft is inserted and slidably connected inside the hexagonal sliding sleeve. The hexagonal sliding sleeve is coaxially arranged with the hexagonal hole gear. A positioning sleeve is sleeved and rotatably connected outside the hexagonal sliding sleeve.

[0012] By adopting the above technical solution, the sliding direction of the hexagonal sliding sleeve can be restricted by the positioning sleeve, and the hexagonal shaft can slide inside the hexagonal sliding sleeve to meet the requirement that the driving mechanism moves together with the mounting plate.

[0013] Optionally, a transmission box body is arranged outside the driving gear. The transmission box body is fixedly connected to the outer wall of the positioning sleeve and the locking motor reducer.

[0014] By adopting the above technical solution, the hexagonal gear and the driving gear inside the transmission box body can be protected by arranging the transmission box body.

[0015] Optionally, the connecting member is set 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.

[0016] By adopting the above technical solution, the hexagonal shaft and the bidirectional screw can be connected together through the cross universal shaft coupling, and can reliably transmit torque and motion.

[0017] Optionally, a groove is formed on one side of the mounting plate close to the sliding table. A locking block is arranged in the groove. The upper end of the locking block is fixedly connected with a connecting rod. One end of the connecting rod passes through the cross beam and the sliding table. The upper end of the sliding table is fixedly connected with a fixed housing. The end of the connecting rod is placed in the fixed housing. A lifting block is fixedly connected to the connecting rod. A lifting rod is inserted and slidably connected in the fixed housing. One end of the lifting rod is placed outside the fixed housing. The sliding direction of the lifting rod in the fixed housing is parallel to the axial direction of the bidirectional screw. The lifting rods correspond to the sliders one by one. An inclined block is fixedly connected to one end of the lifting rod close to the lifting block. The inclined surface of the inclined block abuts against the lower end of the lifting block. When the inclined block abuts against the lifting block and the two inclined blocks move towards each other, the connecting rod slides away from the cross beam, and the locking block abuts tightly against the cross beam.

[0018] By adopting the above technical solution, when the slider on the bidirectional screw disengages from the inclined surface and continues to move towards each other, the slider can abut against the lifting rod, causing the two lifting rods to slide towards each other inside the fixed housing. Subsequently, the inclined block abuts against the lifting block, and when the two inclined blocks move towards each other, an external force is applied to the lifting block, causing the lifting block to drive the connecting rod to slide away from the cross beam, and finally causing the locking block to abut tightly against the cross beam, thereby further improving the stability of the mounting plate on the cross beam.

[0019] Optionally, a return spring is fixedly connected between the lifting rod and the inner wall of the fixed housing. The return springs correspond to the lifting rods one by one and are sleeved on the lifting rods.

[0020] By adopting the above technical solution, the position of the lifting rod can be restricted by the return spring, which is convenient for the subsequent cooperation between the lifting rod and the slider.

[0021] Optionally, the locking block includes a lower block fixedly connected to the connecting rod. An upper block is arranged on one 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. A support spring for supporting the telescopic rod is arranged in the telescopic rod.

[0022] By adopting the above technical solution, the sliding direction between the upper block and the lower block can be restricted by the telescopic rod, and the abutment of the entire locking block against the cross beam can be realized by the abutment of the upper block against the cross beam.

[0023] In summary, the present application includes at least one of the following beneficial technical effects:

[0024] 1. The driving mechanism can drive the bidirectional screw to rotate, causing the slider to slide along the bidirectional screw towards the side where they approach each other. As a result, the slider applies an external force towards the crossbeam to the sliding table through the inclined surface of the sliding table, causing the sliding table to be tightly pressed against the crossbeam. Consequently, the positions of the tension screw and the mounting plate are fixed. Thus, during the process of railway track grinding and repair, the position of the grinding device can be firmly fixed quickly and stably.

[0025] 2. The locking motor reducer can be started to drive the driving gear to rotate. Subsequently, 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.

[0026] 3. The sliding direction of the hexagonal sliding sleeve can be restricted by the positioning sleeve, and the hexagonal shaft can slide within the hexagonal sliding sleeve to meet the requirement of the driving mechanism moving together with the mounting plate. Description of the Drawings

[0027] Figure 1 is the overall structural schematic diagram of Embodiment 1 of the present application;

[0028] Figure 2 is the structural schematic diagram of the driving mechanism of Embodiment 1 of the present application;

[0029] Figure 3 is the structural schematic diagram of the mounting plate of Embodiment 1 of the present application;

[0030] Figure 4 is the overall structural schematic diagram of Embodiment 2 of the present application;

[0031] Figure 5 is the structural schematic diagram of the slider of Embodiment 2 of the present application;

[0032] Figure 6 is Figure 5 the enlarged structural schematic diagram of part A in

[0033] In the figure, 1, mounting plate; 11, groove; 2, tension screw; 3, sliding table; 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 box body; 8, locking block; 81, lower block; 82, upper block; 83, telescopic rod; 84, support spring; 9, connecting rod; 91, lifting block; 10, fixed shell; 101, lifting rod; 1011, inclined block; 102, return spring. Detailed Embodiments

[0034] The following will Figure 1 - be Figure 6 , and further elaborate on the present application in detail.

[0035] Example 1

[0036] The locking mechanism for the intelligent rail trimming and grinding equipment, referring to Figure 1 、 Figure 2 and Figure 3 , includes a mounting plate 1 slidably connected inside the crossbeam. In this embodiment, the crossbeam is arranged in a cuboid shape. The mounting plate 1 on the mounting plate 1 is used to mount the grinding device. In the attached drawings, the structures of the crossbeam and the mounting plate are in the state where the grinding device is not installed. A sliding hole for the screw to slide is provided on the crossbeam, and the sliding hole is arranged along the length direction of the crossbeam. A tension screw 2 is inserted and fixedly connected to the mounting plate 1. The tension screw 2 passes through the crossbeam and is fixedly connected to a sliding table 3. Two sliders 5 are provided on the sliding table 3. The sliding table 3 abuts against the sliders 5, and the abutting surface between the sliding table 3 and the sliders 5 is set as an inclined surface. The lower end of the slider 5 is set as an inclined surface adapted to the inclined surface of the sliding table 3.

[0037] A same bidirectional screw 4 is inserted and threadedly connected to the two sliders 5. The end of the tension screw 2 far from the mounting plate 1 is slidably connected to the bidirectional screw 4. A driving mechanism 6 is provided on one side of the bidirectional screw 4 for driving the bidirectional screw 4 to rotate. When the bidirectional screw 4 rotates, the two sliders 5 move towards the side close to or away from each other.

[0038] The driving mechanism 6 includes a locking motor reducer 61 and a transmission box 68. The transmission box 68 is fixedly connected to the crossbeam. The locking motor reducer 61 is fixedly connected inside the transmission box 68. A driving gear 62 is fixedly connected to the output shaft of the locking motor reducer 61. 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. A hexagonal shaft 64 is inserted into the hexagonal hole gear 63. A hexagonal sliding sleeve 66 is fixedly connected inside the hexagonal hole gear 63. The hexagonal shaft 64 is inserted and slidably connected inside the hexagonal sliding sleeve 66. The hexagonal sliding sleeve 66 is coaxially arranged with the hexagonal hole gear 63. A positioning sleeve 67 is sleeved and rotatably connected outside the hexagonal sliding sleeve 66. The positioning sleeve 67 is fixedly connected to the transmission box 68.

[0039] A connecting member 65 for connecting the hexagonal shaft 64 and the bidirectional screw 4 is provided between the hexagonal shaft 64 and the bidirectional screw 4. In this embodiment, the connecting member 65 is set as a cross universal coupling. One end of the cross universal coupling is fixedly connected to the hexagonal shaft 64, and the other end of the cross universal coupling is fixedly connected to the bidirectional screw 4. In order to ensure the synchronism of the main and driven ends, the cross universal shaft coupling actually adopts a double-joint type in practical applications. The connection method of the double-joint can be set as welding or flange connection through bolts. The cross universal shaft coupling utilizes the characteristics of its mechanism to enable the two shafts to continuously rotate when they are not on the same axis and there is an axis included angle β, and reliably transmit torque and motion.

[0040] The implementation principle of Embodiment 1 of this 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. Starting the locking motor reducer 61 drives the driving gear 62 to rotate, and then the driving gear 62 drives the hexagonal hole gear 63 to rotate. Then, the hexagonal shaft 64 drives the bidirectional screw 4 to rotate through the cross universal coupling. Thus, the locking motor reducer 61 drives the bidirectional screw 4 to rotate. The slider 5 slides along the bidirectional screw 4 towards the side where they approach each other. Then, the slider 5 applies an external force towards the crossbeam to the slide 3 through the inclined surface of the slide 3, causing the slide 3 to be tightly pressed against the crossbeam. Then, the positions of the tension screw 2 and the mounting plate 1 are fixed.

[0041] Embodiment 2

[0042] The difference from Embodiment 1 is as follows: Referring to Figure 4 、 Figure 5 and Figure 6 On one side of the mounting plate 1 close to the slide 3, a groove 11 is provided, and a locking block 8 is arranged 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. Both the upper block 82 and the lower block 81 are arranged in a cuboid shape, and the upper block 82 is located on the 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 rods 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 arranged in the telescopic rod 83. Under the action of the support spring 84, the telescopic rod 83 maintains an extended state.

[0043] One end of the connecting rod 9 is fixedly connected to the lower block 81 close to the upper block 82, 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. A fixed shell 10 is fixedly connected to the upper end of the slide 3. The end of the connecting rod 9 is placed in the fixed shell 10, and a lifting block 91 is fixedly connected to the end of the connecting rod 9 placed in the fixed shell 10. The lifting block 91 is arranged in two and is located on both sides of the connecting rod 9 respectively, and the two lifting blocks 91 are 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 axis 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, and 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 does not abut against the lifting rod 101, the return spring 102 keeps the inclined block 1011 in a state of not abutting against the lifting block 91.

[0044] The lifting rods 101 correspond to the sliders 5 one by one. One end of each 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.

[0045] Thus, when the slider 5 on the bidirectional screw rod 4 disengages from the inclined surface of the sliding table 3 and continues to move towards the side where they approach each other, the slider can abut against the lifting rod 101, causing the two lifting rods 101 to slide towards the side where they approach each other within the fixed housing 10, compressing the return spring 102. Subsequently, the inclined block 1011 abuts against the lifting block 91, and when the two inclined blocks 1011 move towards the side where they approach each other, an external force is applied to the lifting block 91, causing the lifting block 91 to drive the connecting rod 9 to slide away from the cross beam. At this time, the support spring 84 will be compressed, and the lower block 81 moves upward and gradually applies a force to the upper block 82. And finally, the upper block 82 in the locking block 8 abuts tightly against the cross beam, thereby further improving the stability of the mounting plate 1 on the cross beam.

[0046] The embodiments of the present specific implementation manners are all preferred embodiments of the present application, and do not limit the protection scope of the present application accordingly. The same components are denoted by the same reference numerals. Therefore, all equivalent changes made according to the structure, shape, and principle of the present application should be covered within the protection scope of the present application.

Claims

1. The locking mechanism for the intelligent rail trimming and grinding equipment is characterized in that, It includes a mounting plate (1) slidably connected inside a cross beam. The mounting plate (1) is used to mount a grinding device. A tension screw rod (2) is inserted through and fixedly connected to the mounting plate (1). The tension screw rod (2) passes through the cross beam and is fixedly connected to a sliding table (3). Two sliders (5) are provided on the sliding table (3). The sliding table (3) abuts against the sliders (5), and the abutting surface between the sliding table (3) and the sliders (5) is set as an inclined surface. A same bidirectional screw rod (4) is inserted through and threadedly connected to the two sliders (5). When the bidirectional screw rod (4) rotates, the two sliders (5) move towards one side close to or away from each other. The end of the tension screw rod (2) away from the mounting plate (1) is slidably connected to the bidirectional screw rod (4). A driving mechanism (6) for driving the bidirectional screw rod (4) to rotate is provided on one side of the bidirectional screw rod (4). The driving mechanism (6) includes a locking motor reducer (61). A driving gear (62) is fixedly connected to the output shaft of the locking motor reducer (61). A hexagonal hole gear (63) is meshed with one side of the driving gear (62). A hexagonal shaft (64) is inserted through and slidably connected inside the hexagonal hole gear (63). The hexagonal shaft (64) is coaxially arranged with the hexagonal hole gear (63). A connecting member (65) for connecting the two is provided between the hexagonal shaft (64) and the bidirectional screw rod (4). A groove (11) is formed on the side of the mounting plate (1) close to the sliding table (3). A locking block (8) is provided inside 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 cross beam and the sliding table (3). A fixed shell (10) is fixedly connected to the upper end of the sliding table (3). The end of the connecting rod (9) is placed inside the fixed shell (10). A lifting block (91) is fixedly connected to the connecting rod (9). A lifting rod (101) is inserted through and slidably connected inside the fixed shell (10). One end of the lifting rod (101) is placed outside the fixed shell (10). The sliding direction of the lifting rod (101) inside the fixed shell (10) is parallel to the axis direction of the bidirectional screw rod (4). The lifting rods (101) correspond to the sliders (5) one by one. An inclined block (1011) is fixedly connected to the end of the lifting rod (101) close to the lifting block (91). 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 towards one side close to each other, the connecting rod (9) slides towards the side away from the cross beam, and the locking block (8) is pressed tightly against the cross beam.

2. The locking mechanism for the intelligent rail trimming and grinding equipment according to claim 1, characterized in that, A hexagonal sliding sleeve (66) is fixedly connected inside the hexagonal hole gear (63). The hexagonal shaft (64) is inserted through and slidably connected inside the hexagonal sliding sleeve (66). The hexagonal sliding sleeve (66) is coaxially arranged with the hexagonal hole gear (63). A positioning sleeve (67) is sleeved outside and rotatably connected to the hexagonal sliding sleeve (66).

3. The locking mechanism for the intelligent rail trimming and grinding equipment according to claim 2, characterized in that, A transmission housing (68) is provided outside the driving gear (62), and the transmission housing (68) is fixedly connected to both the outer wall of the positioning sleeve (67) and the locking motor reducer (61).

4. The locking mechanism for the intelligent rail trimming and grinding equipment according to claim 1, characterized in that, The connecting member (65) is provided 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).

5. The locking mechanism for the intelligent rail trimming and grinding equipment according to claim 1, characterized in that, A return spring (102) is fixedly connected between the lifting rod (101) and the inner wall of the fixed housing (10), and the return spring (102) corresponds to the lifting rod (101) one by one and is sleeved on the lifting rod (101).

6. The locking mechanism for the intelligent rail dressing and grinding equipment according to claim 5, characterized in that, The locking block (8) includes a lower block (81) fixedly connected to the connecting rod (9), an upper block (82) is provided on one side of the lower block (81) close to the crossbeam, 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), and a support spring (84) for supporting the telescopic rod (83) is provided in the telescopic rod (83).

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