Alloy steel rail drilling device

Abstract

The alloy steel rail drilling device comprises a drilling trolley and anti-skid wheels, rail guide grooves are symmetrically formed in the middle positions of the surfaces of the two sides of the drilling trolley, a plurality of sets of auxiliary rolling wheels are evenly installed on the inner surfaces of the rail guide grooves in a surrounding mode, and displacement sensors are symmetrically installed in the middle positions of the surfaces of the two ends of the rail guide grooves. According to the rail drilling device, the drilling trolley is adopted, in the actual use process, during operation, a worker only needs to sleeve the periphery of a rail needing to be drilled with the drilling trolley, and then the drilling trolley can be accurately moved to an area needing to be operated through operation of a driving motor and a displacement sensor; and then drilling operation on the rail can be achieved through corresponding fixing and drill bit running, in the whole operation, only the device needs to be placed by personnel, no personnel operation is needed in the follow-up process, operation is very convenient, the frequent participation amount of the personnel is reduced, and the rail drilling device has the advantage of being easy to operate.

Description

[0001] This application is a divisional application of the invention named "A device for drilling holes in alloy steel rails", in which the application number of the parent case is 202211709035.3 and the application date is 2022.12.29. Technical Field

[0002] The invention relates to the technical field of rail transportation, and in particular to an alloy steel rail drilling device. Background Art

[0003] The manufacturing technology of rails has not made any major breakthroughs in the past 100 years. It is still made by the low-cost casting method. Bolts are also used to fix the rails during the laying process. However, as the railway lines become more and more complex, the requirements for rails are getting higher and higher, especially the requirements for rail docking. Modern railway construction needs to meet the development needs of modern railways, which requires rail manufacturers to speed up production progress and improve production quality. In the production process of rails, in addition to casting the rails, the rails need to be drilled after they are formed, and holes for rail docking and installation are drilled on the side of the rails. For a long time, rail drilling was done by manual drilling, that is, the size of the holes on the side of each section of the rails was measured and marked, and then placed on the drilling platform for drilling according to the marked holes. This drilling method is inefficient and has a low yield, and is not suitable for large-scale production.

[0004] The existing disclosed technology has a publication number of CN111390241A, which is an alloy steel rail drilling device. It consists of a lower base, a longitudinal beam, an upper base, a fixed base, a drilling rig base, a drilling jig, a drilling rig, a positioning bolt, a fixing bolt, a front limit block, a rear limit block, a fixed base and a drilling jig limit buckle. The present invention is an alloy steel rail drilling device, the base part of which is made of discarded rails, which reduces the production cost. Before drilling, a drilling jig is made of steel plates. Each drilling jig can be used for rails of the same specification for multiple times, which improves the drilling efficiency and drilling accuracy. Using an ordinary drilling machine can achieve drilling accuracy comparable to that of a CNC machine tool, further reducing the production cost and the investment cost of the enterprise. It has a simple structure, is easy to use, has a low manufacturing cost, is easy to maintain, and has low maintenance costs.

[0005] However, the above patent still has certain disadvantages when in use: it requires personnel to manually adjust the drilling position of the rail, and the accuracy of manual movement is poor, which results in the drilling effect being not very ideal. In addition, the rails need to be frequently operated manually during the operation, which increases the workload of personnel, is time-consuming and labor-intensive, and has certain disadvantages. Summary of the invention

[0006] The purpose of the present invention is to solve the shortcomings of the prior art and to propose an alloy steel rail drilling device.

[0007] In order to achieve the above-mentioned purpose, the present invention provides an alloy steel rail drilling device, including a drilling trolley and anti-skid wheels, wherein rail guide grooves are symmetrically arranged in the middle of the two side surfaces of the drilling trolley, the shape of the rail guide grooves matches the outer surface of the rails, a plurality of groups of auxiliary rollers are evenly installed around the inner surface of the rail guide grooves, displacement sensors are symmetrically installed in the middle of the two end surfaces of the rail guide grooves, support plates are symmetrically installed in the middle of the two side surfaces of the inner part of the drilling trolley, a drill is fixedly installed on one side of the support plate located on the surface of the drilling trolley, one end of the drill penetrates the other side of the support plate and is connected to the drill bit, and the drill One end of the head is located in the middle of one side surface of the inner part of the drilling trolley and is clamped with a drilling template, and a drill hole is provided in the middle of the surface of the drilling template, and the drill hole is used to limit the drill bit; fixed plates are symmetrically installed at the top positions of the two side surfaces of the drilling trolley, and a first hydraulic rod is fixedly installed at the middle position of the bottom surface of the fixed plate, and a top pressure plate is fixedly installed at one end of the first hydraulic rod, and the top pressure plate is used to squeeze and fix the top of the rail; second hydraulic rods are symmetrically installed on the two side surfaces of the bottom of the drilling trolley, and a lower pressure plate is fixedly installed on the bottom surface of the second hydraulic rod, and the lower pressure plate is used to squeeze and fix the bottom of the rail.

[0008] As a further description of the above technical solution:

[0009] The two ends of the support plate are symmetrically installed with fixed brackets on the two side surfaces inside the drilling trolley. The fixed bracket is a convex structure. A roller is rotatably connected to the middle position of the surface of one end of the fixed bracket. A plurality of groups of brushes are evenly arranged on the outer peripheral surface of the roller. One end of the roller passes through one side of the fixed bracket and is connected to a grinding motor located on the bottom surface inside the drilling trolley.

[0010] As a further description of the above technical solution:

[0011] The shapes of the top pressure plate and the lower pressure plate are respectively matched with the top and bottom of the rail.

[0012] As a further description of the above technical solution:

[0013] The anti-skid wheels are symmetrically rotatably connected to the bottom ends of the two side surfaces of the drilling trolley, and one end of the anti-skid wheel passes through one side of the drilling trolley and is connected to the driving motor.

[0014] As a further description of the above technical solution:

[0015] The bottom ends of the inner surfaces of the drilling trolley are symmetrically provided with limiting grooves for the drilling template to be clamped, and the bottom ends of the drilling template are symmetrically provided with connecting heads for the limiting grooves to be clamped.

[0016] As a further description of the above technical solution:

[0017] A replacement groove for replacing the drilling template is provided on the surface of one side of the top of the drilling trolley.

[0018] As a further description of the above technical solution:

[0019] A controller is fixedly installed on the other side surface of the top of the drilling trolley.

[0020] Compared with the prior art, the beneficial effects of the present invention are:

[0021] 1. The present invention adopts a drilling trolley. In actual use, during operation, the personnel only need to place the drilling trolley on the periphery of the rails that need to be drilled. Subsequently, the drilling trolley can be accurately moved to the area where the operation is required through the operation of the driving motor and the displacement sensor. Then, the drilling operation of the rails can be achieved through the corresponding fixation and operation of the drill bit. In the overall operation, only the personnel need to place the device, and no personnel operation is required subsequently. It is very convenient, reduces the frequent participation of personnel, and has the advantage of simple operation.

[0022] 2. The present invention adopts a displacement sensor and a drilling template. In actual use, the device can detect the moving distance of the device through the detection of the displacement sensor, so as to ensure that the drill can accurately move to the position where the hole needs to be drilled, so as to ensure the effect of drilling. Then, when drilling, the drilling restriction on the surface of the drilling template can prevent the drill bit from moving to other positions, ensuring that there will be no deviation when drilling, improving the drilling effect, and having the advantage of good drilling effect.

[0023] 3. The present invention adopts a top pressure plate, a lower pressure plate, and a rail guide groove. In actual use, the rail will first be placed inside the rail guide groove to achieve initial restraint of the rail. On the one hand, it is convenient for subsequent adjustment of the position, and on the other hand, it can ensure the stability of the rail to avoid movement during subsequent drilling. Then, on this basis, through the extrusion and fixation of the top pressure plate and the lower pressure plate, the stability of the device and the rail can be guaranteed, the stability of the two during drilling is enhanced, and misalignment during drilling is avoided, thereby improving the accuracy of drilling, and having the advantage of high drilling accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the embodiments are briefly introduced below.

[0025] Figure 1 This is a schematic structural diagram of an alloy steel rail drilling device proposed by the present invention;

[0026] Figure 2 A schematic diagram of the structure of an auxiliary roller of an alloy steel rail drilling device proposed by the present invention;

[0027] Figure 3 A schematic diagram of the internal structure of a rail guide groove of an alloy steel rail drilling device proposed by the present invention;

[0028] Figure 4 A structural schematic diagram of a drilling jig for an alloy steel rail drilling device proposed by the present invention;

[0029] Figure 5 A schematic diagram of the connection between a fixing plate and a top pressure plate of an alloy steel rail drilling device proposed by the present invention;

[0030] Figure 6 A schematic diagram of the connection between a fixed support and a roller of an alloy steel rail drilling device proposed by the present invention;

[0031] Figure 7 The present invention is a schematic structural diagram of a lower pressure plate of an alloy steel rail drilling device.

[0032] Legend:

[0033] 1. Drilling trolley; 2. Top pressure plate; 3. First hydraulic rod; 4. Fixed plate; 5. Rail guide groove; 6. Auxiliary roller; 7. Controller; 8. Drilling template; 9. Replacement groove; 10. Drilling; 11. Brush; 12. Roller; 13. Fixed bracket; 14. Drill bit; 15. Grinding motor; 16. Drilling rig; 17. Support plate; 18. Limiting groove; 19. Connector; 20. Anti-skid wheel; 21. Drive motor; 22. Lower pressure plate; 23. Displacement sensor; 24. Second hydraulic rod. DETAILED DESCRIPTION

[0034] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0035] Embodiment 1, refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 ,and Figure 6, an alloy steel rail drilling device, comprising a drilling trolley 1 and anti-skid wheels 20, rail guide grooves 5 are symmetrically arranged in the middle of the two side surfaces of the drilling trolley 1, a plurality of auxiliary rollers 6 are evenly mounted around the inner surface of the rail guide grooves 5, displacement sensors 23 are symmetrically mounted in the middle of the two end surfaces of the rail guide grooves 5, support plates 17 are symmetrically mounted in the middle of the two side surfaces of the inner surface of the drilling trolley 1, a drill rig 16 is fixedly mounted on one side of the support plate 17 located on the surface of the drilling trolley 1, one end of the drill rig 16 passes through the other side of the support plate 17 and is connected to a drill bit 14, one end of the drill bit 14 is located in the middle of one side surface of the inner surface of the drilling trolley 1 and is clamped with a drill jig 8, and a drill hole 10 is arranged in the middle of the surface of the drill jig 8. In this application, the drill hole 10 refers to the hole made by the drill rig 16 and the surface of the drill jig 8 for opening a hole according to different contexts.

[0036] Specifically, fixed brackets 13 are symmetrically installed on both ends of the support plate 17 on the two side surfaces inside the drilling trolley 1. The fixed bracket 13 is a convex structure. A roller 12 is rotatably connected to the middle position of the surface of one end of the fixed bracket 13. Several groups of brushes 11 are evenly arranged on the outer peripheral surface of the roller 12. One end of the roller 12 passes through one side of the fixed bracket 13 and is connected to a grinding motor 15 located on the bottom surface of the drilling trolley 1. The brush 11 can be used to clean the surface of the rail to ensure cleanliness.

[0037] Example 2, refer to Figure 1 and Figure 5 The top positions of the two side surfaces of the drilling trolley 1 are symmetrically mounted with fixing plates 4, the middle position of the bottom surface of the fixing plates 4 is fixedly mounted with a first hydraulic rod 3, and one end of the first hydraulic rod 3 is fixedly mounted with a top pressure plate 2, which is used to squeeze and fix the top of the rail. The top pressure plate 2 can squeeze and fix the upper surface of the alloy steel rail, thereby enhancing the stability of the drilling trolley 1 and preventing it from moving.

[0038] Example 3, refer to Figure 1 and Figure 7 The second hydraulic rods 24 are symmetrically installed on the two sides of the bottom surface of the drilling trolley 1, and the lower pressing plate 22 is fixedly installed on the bottom surface of the second hydraulic rod 24. The lower pressing plate 22 is used to squeeze and fix the bottom of the rail. The lower pressing plate 22 can squeeze and fix the lower surface of the alloy steel rail to enhance the stability of the drilling trolley 1 and prevent it from moving.

[0039] Embodiment 4, referring to Figure 1 The bottom ends of the two side surfaces of the drilling trolley 1 are symmetrically rotatably connected with anti-skid wheels 20. One end of the anti-skid wheel 20 passes through one side of the drilling trolley 1 and is connected to a driving motor 21. The operation of the driving motor 21 can drive the anti-skid wheel 20 to rotate, thereby achieving the purpose of moving the drilling trolley 1 on the surface of the alloy steel rail, which is convenient for subsequent drilling.

[0040] Example 5, refer to Figure 1 and Figure 4 The bottom ends of the inner surfaces of the drilling trolley 1 are symmetrically provided with limiting grooves 18 for the drilling jig 8 to be clamped, and the bottom ends of the drilling jig 8 are symmetrically provided with connecting heads 19 for the limiting grooves 18 to be clamped. The drilling jig 8 can be fixed by using the connecting heads 19 in conjunction with the limiting grooves 18 to avoid movement during use and improve stability.

[0041] Example 6, refer to Figure 1 and Figure 4 A replacement groove 9 for replacing the drill jig 8 is provided on the surface of one side of the top of the drilling trolley 1. The setting of the replacement groove 9 facilitates the replacement of the drill jig 8 and avoids the continued use of the damaged drill jig 8 to affect the drilling effect.

[0042] Embodiment 7, reference Figure 1 A controller 7 is fixedly installed on the other side surface of the top of the drilling trolley 1, and the controller 7 can be used to control the equipment inside the device in accordance with the pre-set programming.

[0043] Embodiment 8, refer to Figure 1 , Figure 3 , Figure 5 and Figure 7 The shapes of the top pressure plate 2, the rail guide groove 5 and the lower pressure plate 22 respectively match the top, outer surface and bottom of the rail. The shape matching is to ensure that the alloy steel rail can be fixed during the subsequent drilling, avoid the random movement of the drilling trolley 1, ensure the stability of the operation, improve the accuracy of the operation, and thus improve the drilling effect.

[0044] Working principle: In actual use, personnel can insert the intact drilling template 8 into the limiting groove 18 through the replacement groove 9 to achieve its fixing operation, and then personnel can place the drilling trolley 1 on the surface of the alloy steel rail that needs to be operated through the rail guide groove 5 (hereinafter referred to as the rail). Since the shape of the rail guide groove 5 fits the rail itself, it can be well moved on the surface of the rail. Then, personnel can control the driving motor 21 to run for different lengths of time according to the different positions where holes need to be drilled, so that the drilling trolley 1 can be moved to any position on the surface of the rail, and in the process of moving, the displacement distance of the device can be detected by the displacement sensor 23. In conjunction with the control of the running time of the driving motor 21, the moving distance of the device can be well grasped, so that the device can be perfectly moved to the position where holes need to be drilled, thereby improving the overall movement accuracy and thus improving the subsequent drilling effect. After the device moves to the position where holes need to be drilled, the first hydraulic rod 3 and the second hydraulic rod 24 work accordingly, driving the top pressure plate 2 and the lower pressure plate 22 to squeeze and fix the surface of the rail, so that the drilling trolley 1 will not be displaced due to vibration during subsequent drilling, thereby improving the drilling accuracy. After the drilling trolley 1 is fixed, the operation of the drilling machine 16 can drive the drill bit 14 to drill the rail surface. During drilling, due to the limitation of the drilling hole 10, the drill bit 14 will not move easily, thereby ensuring the drilling accuracy and improving the overall drilling effect. After a drilling is completed, the top pressure plate 2 and the lower pressure plate 22 are retracted, and the device can continue to move to a suitable position through the detection of the driving motor 21 and the displacement sensor 23. During the whole operation process, personnel only need to place one set of drilling trolley on the surface of the rail, and the rest of the operations can be realized through personnel programming to realize the movement of the device and the drilling operation. The process can be briefly described as device movement-displacement detection-extrusion and fixation-drilling-extrusion and retraction-continued movement-secondary displacement detection-extrusion and fixation-drilling. The operation is very convenient, which greatly liberates the labor force and reduces the workload of personnel. It is very user-friendly and convenient for drilling a large number of rails. The device as a whole has the advantages of simple operation, high drilling accuracy and good drilling effect.

[0045] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An alloy steel rail drilling device, comprising a drilling trolley (1) and an anti-skid wheel (20), characterized in that: The drilling trolley (1) is symmetrically provided with rail guide grooves (5) in the middle of both side surfaces. The shape of the rail guide grooves (5) matches the outer surface of the rail. A plurality of auxiliary rollers (6) are evenly mounted around the inner surface of the rail guide grooves (5). Displacement sensors (23) are symmetrically mounted in the middle of both end surfaces of the rail guide grooves (5). Support plates (17) are symmetrically mounted in the middle of both side surfaces of the drilling trolley (1). A drill (16) is fixedly mounted on one side of the support plate (17) located on the surface of the drilling trolley (1). One end of the drill (16) passes through the other side of the support plate (17) and is connected to a drill bit (14). One end of the drill bit (14) is located in the middle of one side surface of the drilling trolley (1). A drilling template (8) is arranged and clamped, and a drilling hole (10) is provided in the middle of the surface of the drilling template (8), and the drilling hole (10) is used to limit the drill bit (14); fixed plates (4) are symmetrically installed at the top positions of the two side surfaces of the drilling trolley (1), and a first hydraulic rod (3) is fixedly installed at the middle position of the bottom surface of the fixed plate (4), and a top pressure plate (2) is fixedly installed at one end of the first hydraulic rod (3), and the top pressure plate (2) is used to squeeze and fix the top of the rail; second hydraulic rods (24) are symmetrically installed at the two side surfaces of the bottom of the drilling trolley (1), and a lower pressure plate (22) is fixedly installed at the bottom surface of the second hydraulic rod (24), and the lower pressure plate (22) is used to squeeze and fix the bottom of the rail.

2. The alloy steel rail drilling device according to claim 1, characterized in that: The two ends of the support plate (17) are symmetrically mounted with fixed brackets (13) located on both sides of the inner surface of the drilling trolley (1); the fixed bracket (13) is a convex structure; a roller (12) is rotatably connected to the middle of one end of the surface of the fixed bracket (13); a plurality of groups of brushes (11) are evenly arranged on the outer peripheral surface of the roller (12); one end of the roller (12) passes through one side of the fixed bracket (13) and is connected to a grinding motor (15) located on the inner bottom surface of the drilling trolley (1).

3. The alloy steel rail drilling device according to claim 1, characterized in that: The shapes of the top pressure plate (2) and the lower pressure plate (22) respectively match the top and bottom of the rail.

4. The alloy steel rail drilling device according to claim 1, characterized in that: The anti-skid wheels (20) are symmetrically rotatably connected to the bottom ends of the two side surfaces of the drilling trolley (1), and one end of the anti-skid wheel (20) passes through one side of the drilling trolley (1) and is connected to the driving motor (21).

5. The alloy steel rail drilling device according to claim 1, characterized in that: Restriction grooves (18) for clamping the drilling jig (8) are symmetrically provided at the bottom ends of the inner surfaces of both sides of the drilling trolley (1), and connection heads (19) for clamping the restriction grooves (18) are symmetrically provided at the bottom ends of the inner surfaces of both sides of the drilling jig (8).

6. The alloy steel rail drilling device according to claim 1, characterized in that: A replacement groove (9) for replacing the drilling template (8) is provided on one side surface of the top of the drilling trolley (1).

7. The alloy steel rail drilling device according to claim 1, characterized in that: A controller (7) is fixedly mounted on the other side surface of the top of the drilling trolley (1).

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