Rail sawing machine with protective structure
By setting up protective structures of flexible sheets, suction cups, crossbars and springs in the sawing machine, the possible displacement problems after the rails are cut, and the cutting accuracy and construction safety are improved.
Patent Information
- Application Number
- CN202422424853.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-09
- Publication Date
- 2025-05-30
- Estimated Expiration
- 2034-10-09
AI Technical Summary
During the use of the sawing machine, the rails may be displaced after the sawing of the rails, causing injury to the construction personnel and inaccurate cutting.
A saw rail machine with a protective structure is designed. By setting flexible sheets, suction cups, crossbars and springs, the contact area and friction between the protective components and the jaw of the rail head is increased, fixing points are increased, and the risks of shaking and displacement are reduced, and the accuracy of cutting is ensured.
It effectively prevents the displacement of the rail, protects construction personnel from injury, and improves the accuracy of cutting, ensuring the safe and efficient operation of the saw rail machine.
Smart Images
Figure CN222923542U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of urban rail transit, and particularly relates to a rail sawing machine with a protection structure. Background Technique
[0002] With the rapid development of urban rail transit, the increase in rail operation lines, and the improvement of traffic volume and load, the problem of rail wear has become increasingly prominent. When the rail wear reaches the replacement standard, it needs to be replaced. When replacing the rail, the commonly used maintenance equipment is a rail sawing machine. In order to quickly fix the rail sawing machine on the rail, a fixed bracket is usually used as a connecting device.
[0003] At present, the main products for rail cutting operations on railways include two types, namely, a rail sawing machine powered by an internal combustion engine and a rail sawing machine driven by an AC asynchronous motor. The composition of these products mainly consists of a pulley driven by a fuel internal combustion engine or an electric motor, and the work of cutting the rail is carried out by driving the rotation of the saw blade.
[0004] However, in the actual use process of the above equipment, a fixed bracket that drives a limit ejector pin by rotating a knob is usually used on one side to fix the rail, while the rail on the other side has no limit. Due to the high rotation speed and torque of the saw blade, after the rail is sawn, if the rail is short, the rail may shift, causing harm to construction workers. In view of this, we have proposed a rail sawing machine with a protection structure. Content of the Utility Model
[0005] The purpose of the utility model is to provide a rail sawing machine with a protection structure to solve the problems raised in the above background technique.
[0006] To achieve the above purpose, the utility model provides the following technical solution: A rail sawing machine with a protection structure includes a driving device. The output end of the driving device is fixedly connected with a saw blade. The side wall of the driving device is fixedly connected with a lifting handle. A protection component is arranged on the side wall of the driving device. The protection component includes:
[0007] A clamping arm. The top of the clamping arm is hinged with a second movable arm. One end of the second movable arm away from the clamping arm is hinged with a first movable arm. The first movable arm is hinged on the side wall of the driving device.
[0008] A rotating rod. The rotating rod is rotatably connected with the side wall of the clamping arm. A clamping block is fixedly connected to the side wall of the rotating rod. A limiting block is fixedly connected to the side wall of the rotating rod. A gear is sleeved on the side wall of the rotating rod. One end of the rotating rod located inside the clamping arm is sleeved with a movable rod. A suction cup is fixedly connected to the end face of the movable rod.
[0009] Limit frame, a limit rod is fixedly connected to the side wall of the limit frame, the limit rod is sleeved with the inner wall of the clamping arm, the limit frame is slidably connected to the toothed rod, a cross bar is fixedly connected to the end face of the toothed rod, and a flexible sheet is fixedly connected to the end face of the limit frame.
[0010] Preferably, the movable rod is hollow, a spring is fixedly connected to the inner wall of the movable rod, and one end of the spring far from the inner wall of the movable rod is fixedly connected to the inner wall of the rotating rod.
[0011] Preferably, the gear meshes with the toothed rod, and the side wall of the gear fits with the inner wall of the limit frame.
[0012] Preferably, the number of the toothed rods and the cross bars is set to two groups, and the two groups of toothed rods and cross bars are arranged in a circumferential manner at equal intervals around the gear.
[0013] Preferably, a clamping groove is formed on the outer wall of the clamping arm, and the clamping groove is clamped with the clamping block, thereby preventing the rotating rod from rotating due to the vibration of the machine.
[0014] Preferably, the number of the limit blocks is set to two groups, and the two groups of limit blocks are arranged on both sides of the gear, and the limit blocks push the gear to move horizontally.
[0015] Compared with the prior art, the utility model provides a rail sawing machine with a protection structure, and has the following beneficial effects:
[0016] 1. For the rail sawing machine with the protection structure, through the arranged flexible sheet, suction cup and cross bar, the upper cross bar pushes the flexible sheet, so that the flexible sheet presses against the upper jaw of the rail head, and the flexible sheet wraps the lower jaw of the rail head, increasing the contact area between the protection component and the lower jaw of the rail head, thereby increasing the friction between the flexible sheet and the lower jaw of the rail head and improving the stability of the protection component. The lower cross bar contacts the upper surface of the rail bottom, and by increasing multiple fixing points, the risk of shaking and displacement caused by a single fixing point is reduced, thereby preventing the cutting from deviating and improving the cutting accuracy.
[0017] 2. For the rail sawing machine with the protection structure, by arranging the spring, when the rotating rod is released, the spring elastically pulls the rotating rod, so that the clamping groove and the clamping block are re-clamped, thereby avoiding the rotation of the rotating rod caused by the vibration of the whole device due to cutting and improving the clamping stability. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] Figure 1 is a schematic diagram of the main structure of the utility model;
[0019] Figure 2 is a schematic diagram of the clamping arm structure of the utility model;
[0020] Figure 3 is the utility model Figure 3Schematic diagram of the structure of area A;
[0021] Figure 4 Schematic diagram of the tooth bar structure of the present utility model;
[0022] Figure 5 Schematic diagram of the rotating rod structure of the present utility model;
[0023] Figure 6 For the present utility model Figure 5 Exploded view of the structure of area B in the present utility model.
[0024] In the figure: 1. Driving device; 2. Saw disc; 3. Lifting handle; 4. First movable arm; 5. Second movable arm; 6. Clamping arm; 7. Rotating rod; 8. Gear; 9. Limit block; 10. Movable rod; 11. Suction cup; 12. Spring; 13. Clamping block; 14. Card slot; 15. Flexible sheet; 16. Limit rod; 17. Limit frame; 18. Tooth bar; 19. Cross bar. Detailed implementation mode
[0025] As Figures 1-6 shown, the present utility model provides a technical solution: a saw rail machine with a protection structure, including a driving device 1, the output end of the driving device 1 is fixedly connected with a saw disc 2, the side wall of the driving device 1 is fixedly connected with a lifting handle 3, and a protection component is arranged on the side wall of the driving device 1. The protection component includes a first movable arm 4, a second movable arm 5, a clamping arm 6, a rotating rod 7, a gear 8, a limit block 9, a movable rod 10, a suction cup 11, a spring 12, a clamping block 13, a card slot 14, a flexible sheet 15, a limit rod 16, a limit frame 17, a tooth bar 18, and a cross bar 19.
[0026] In an embodiment of the present utility model, the top of the clamping arm 6 is hinged to the second movable arm 5, one end of the second movable arm 5 far from the clamping arm 6 is hinged to the first movable arm 4, the first movable arm 4 is hinged to the side wall of the driving device 1, the rotating rod 7 is rotatably connected to the side wall of the clamping arm 6, a clamping block 13 is fixedly connected to the side wall of the rotating rod 7, a card slot 14 is opened on the outer wall of the clamping arm 6, and the card slot 14 is engaged with the clamping block 13, thereby preventing the rotation of the rotating rod 7 caused by the vibration of the machine. A limit block 9 is fixedly connected to the side wall of the rotating rod 7, a gear 8 is sleeved on the side wall of the rotating rod 7, the number of the limit blocks 9 is set to two groups, the two groups of limit blocks 9 are arranged on both sides of the gear 8, the limit blocks 9 push the gear 8 to move horizontally, one end of the rotating rod 7 located inside the clamping arm 6 is sleeved with a movable rod 10, the movable rod 10 is hollow, a spring 12 is fixedly connected to the inner wall of the movable rod 10, one end of the spring 12 far from the inner wall of the movable rod 10 is fixedly connected to the inner wall of the rotating rod 7, and a suction cup 11 is fixedly connected to the end face of the movable rod 10.
[0027] A limiting rod 16 is fixedly connected to the side wall of the limiting frame 17. The limiting rod 16 is sleeved with the inner wall of the clamping arm 6. The limiting frame 17 is slidably connected to the rack 18. The gear 8 meshes with the rack 18. The side wall of the gear 8 is in contact with the inner wall of the limiting frame 17. A cross bar 19 is fixedly connected to the end face of the rack 18. The number of the racks 18 and the cross bars 19 is set to two groups. The two groups of racks 18 and cross bars 19 are arranged in a circumferential manner at equal intervals around the gear 8. A flexible sheet 15 is fixedly connected to the end face of the limiting frame 17.
[0028] Clamp the clamping arm 6 on the railway track to clamp the railway tracks on both sides of the cutting position, so as to avoid the sudden displacement of the railway track after cutting, and further protect the construction workers from being injured. Push the rotating rod 7 to make the suction cup 11 suck the web of the rail, and then rotate the rotating rod 7 to drive the gear 8 to rotate, further driving the rack 18 to move longitudinally, so that the upper cross bar 19 pushes the flexible sheet 15 to make the flexible sheet 15 press against the upper jaw of the rail head. The flexible sheet 15 wraps the lower jaw of the rail head, increasing the contact area between the protection component and the lower jaw of the rail head, thereby increasing the friction between the flexible sheet 15 and the lower jaw of the rail head and improving the stability of the protection component. The lower cross bar 19 contacts the upper surface of the rail bottom. By increasing multiple fixed points, the risk of shaking and displacement caused by a single fixed point is reduced, thereby preventing the cutting from deviating and improving the cutting accuracy.
[0029] In addition, the movable rod 10 is hollow. A spring 12 is fixedly connected to the inner wall of the movable rod 10. One end of the spring 12 away from the inner wall of the movable rod 10 is fixedly connected to the inner wall of the rotating rod 7. After the suction cup 11 adsorbs the web of the rail, the block 13 is engaged with the slot 14. At this time, it is necessary to pull the rotating rod 7 outwards to cancel the engagement between the block 13 and the slot 14 before the rotating rod 7 can be rotated. After adjusting the height of the cross bar 19, release the rotating rod 7. Under the elasticity of the spring 12, pull the rotating rod 7 to make the slot 14 and the block 13 engage again, thereby avoiding the rotation of the rotating rod 7 caused by the vibration of the entire device due to cutting and improving the clamping stability.
[0030] In the present utility model, during use, the clamping arm 6 is clamped on the railway track to clamp the railway tracks on both sides of the cutting position. Push the rotating rod 7 to make the suction cup 11 suck the web of the rail. Pull the rotating rod 7 outwards to cancel the engagement between the block 13 and the slot 14, and then rotate the rotating rod 7 to drive the gear 8 to rotate, further driving the rack 18 to move longitudinally. The upper cross bar 19 pushes the flexible sheet 15 to make the flexible sheet 15 press against the upper jaw of the rail head. The lower cross bar 19 contacts the upper surface of the rail bottom. Then release the rotating rod 7. Under the elasticity of the spring 12, pull the rotating rod 7 to make the slot 14 and the block 13 engage again.
[0031] The above has generally described the present utility model in detail. However, based on the present utility model, some modifications or improvements can be made to it, which are obvious to those of ordinary skill in the art. Therefore, modifications or improvements that do not depart from the spirit and idea of the present utility model are within the protection scope of the present utility model.
Claims
1. A rail sawing machine with a protective structure, comprising a driving device (1), wherein an output end of the driving device (1) is fixedly connected to a saw disc (2), and a side wall of the driving device (1) is fixedly connected to a lifting handle (3), characterized in that: The side wall of the driving device (1) is provided with a protection component, and the protection component comprises: A clamping arm (6), wherein the top of the clamping arm (6) is hinged to the movable arm 2 (5), an end of the movable arm 2 (5) away from the clamping arm (6) is hinged to the movable arm 1 (4), and the movable arm 1 (4) is hinged to the side wall of the driving device (1); A rotating rod (7), the rotating rod (7) being rotatably connected to the side wall of the clamping arm (6), the side wall of the rotating rod (7) being fixedly connected to a clamping block (13), the side wall of the rotating rod (7) being fixedly connected to a limiting block (9), the side wall of the rotating rod (7) being sleeved with a gear (8), one end of the rotating rod (7) located inside the clamping arm (6) being sleeved with a movable rod (10), and the end surface of the movable rod (10) being fixedly connected to a suction cup (11); A limit frame (17), the side wall of the limit frame (17) is fixedly connected to a limit rod (16), the limit rod (16) is sleeved with the inner wall of the clamping arm (6), the limit frame (17) is slidably connected to a gear rod (18), the end surface of the gear rod (18) is fixedly connected to a cross rod (19), and the end surface of the limit frame (17) is fixedly connected to a flexible sheet (15).
2. A rail sawing machine with a protective structure according to claim 1, characterized in that: The movable rod (10) is hollow, and a spring (12) is fixedly connected to the inner wall of the movable rod (10); one end of the spring (12) away from the inner wall of the movable rod (10) is fixedly connected to the inner wall of the rotating rod (7).
3. A rail sawing machine with a protective structure according to claim 2, characterized in that: The gear (8) is meshed with the gear rod (18), and the side wall of the gear (8) is in contact with the inner wall of the limiting frame (17).
4. The rail sawing machine with a protective structure according to claim 2, characterized in that: The number of the gear rods (18) and the cross bars (19) is set to two groups, and the two groups of the gear rods (18) and the cross bars (19) are arranged circumferentially around the gear (8) at equal intervals.
5. The rail sawing machine with a protective structure according to claim 1, characterized in that: The outer wall of the clamping arm (6) is provided with a clamping groove (14), and the clamping groove (14) is clamped with the clamping block (13).
6. The rail sawing machine with a protective structure according to claim 1, characterized in that: The number of the limit blocks (9) is set to two groups, and the two groups of limit blocks (9) are arranged on both sides of the gear (8).