Contact rail joint trepanning fixing device

Abstract

The utility model discloses a contact rail joint trepanning fixing device, which relates to the field of track trepanning auxiliary devices, and comprises a fixing frame and an aircraft drill supporting and positioning component, the fixing frame is a U-shaped frame and is buckled on a contact rail, one side of the fixing frame is connected with a fixing jackscrew, and a drill bit positioning hole is reserved in the middle of the other side of the fixing frame; the aircraft drill supporting and positioning assembly is fixedly connected to the outer side wall of the fixing frame and located on the same side as the drill bit positioning hole. The using method mainly comprises the three operation steps of connection of the fixing frame and the contact rail, installation of the aircraft drill and drilling operation. According to the utility model, the position observation groove is reserved, so that observation during positioning is facilitated, and the rail end of the alignment contact rail can be quickly adjusted and more accurately fixed; due to the brand-new drilling tool design, moving stability and precise positioning are achieved, and the punching precision and efficiency are remarkably improved; furthermore, the safety and the environmental protection property of the construction process are improved.

Description

Technical Field

[0001] The utility model relates to the field of track hole opening auxiliary devices, in particular to a contact rail joint hole opening fixing device. Background Art

[0002] In a professional track installation project for a certain transportation line capacity expansion and upgrading project, the contact rail reconstruction and new construction covered a line of 49.459 km. During the critical joint splint installation process, the operator used an aircraft drill to drill holes. However, due to the vibration of the drill bit or the operator's mistakes, the drill bit is prone to offset, resulting in inaccurate position of the reserved drill bit positioning hole. In addition, if the drill bit speed and feed rate are not properly selected, or the concentricity of the drill bit tip is not good, it will significantly affect the accuracy of the drilling, thereby increasing the difficulty of installing the joint splint.

[0003] Therefore, how to provide a contact rail joint hole fixing device that can provide effective support and positioning for the drilling operation through the auxiliary positioning function of the fixing device, ensure the stability of the drilling operation, reduce errors, and improve operation efficiency has become a technical problem that needs to be urgently solved by technical personnel in this field. Utility Model Content

[0004] The purpose of the utility model is to provide a contact rail joint hole fixing device with a simple and reasonable design. Through the development of a high-precision positioning system, high efficiency and production standardization of hole drilling are achieved, and the problems of low efficiency and insufficient precision of hole drilling in contact rail construction are solved.

[0005] In order to solve the above technical problems, the utility model adopts the following technical solutions:

[0006] The utility model discloses a contact rail joint opening fixing device, comprising a fixing frame and an aircraft drill support positioning assembly, wherein the fixing frame is arranged as a U-shaped frame and is buckled on the contact rail, a fixing top screw is connected to one side of the fixing frame, a drill bit positioning hole is reserved in the middle of the other side of the fixing frame, and the aircraft drill support positioning assembly is fixedly connected to the outer side wall of the fixing frame and is on the same side as the drill bit positioning hole.

[0007] Preferably, observation grooves for observation positions are opened on both sides of the top of the fixed frame, the center line of the observation groove coincides with the center of the top surface of the contact rail, and the bottom of the observation groove on one side corresponds to the rail end of the contact rail to determine the punching position on the contact rail.

[0008] Preferably, the observation slots are configured as two U-shaped slots and are symmetrically distributed.

[0009] Preferably, the aircraft drill support and positioning assembly comprises an aircraft drill fixed frame and a frame sliding rod, the aircraft drill fixed frame is sleeved on the frame sliding rod through a frame sliding tube, and moves linearly along the frame sliding rod; one end of the frame sliding rod is fixedly connected to the side wall of the fixed frame and is located on both sides of the drill bit positioning hole, and the other end of the frame sliding rod is positioned and connected together through a sliding rod baffle and a baffle fixing bolt;

[0010] The frame sliding rod is sleeved with a telescopic spring for resetting, and the two ends of the telescopic spring abut against the opposite surfaces of a set of the frame sliding tubes and the fixed frame;

[0011] A sliding top screw is connected to the center of the sliding rod baffle, and the working end of the sliding top screw abuts against an aircraft drill, and the aircraft drill is installed on the aircraft drill fixing frame.

[0012] Preferably, four frame sliding tubes are provided and are symmetrically mounted on two frame sliding rods.

[0013] Preferably, a spring baffle is connected to a group of the frame sliding tubes close to the fixed frame, and one end of the telescopic spring abuts against a side surface of the spring baffle.

[0014] Preferably, positioning nuts are welded on both sides of the central hole of the sliding rod baffle, and the sliding top screw is threadedly connected in the positioning nuts; and an operating rod is connected to the operating side of the sliding rod baffle.

[0015] Preferably, the aircraft drill fixing frame includes a fixing plate body at the top and two support rods at the bottom, the frame sliding tube is symmetrically welded on both sides of the fixing plate body, a fixing hole for installing the aircraft drill is opened in the center of the fixing plate body, the bottom of the aircraft drill is positioned in cooperation with the aircraft drill fixing hole, a drill bit is installed on the aircraft drill, and the drill bit moves horizontally and linearly and passes through the drill bit positioning hole when working.

[0016] Preferably, a joint clamping plate is provided between the inner side surface of the fixing frame and the contact rail, and the fixing frame is clamped and positioned on the opposite sides of the two joint clamping plates and locked in position by fixing top screws.

[0017] A method for using the above-mentioned contact rail joint opening fixing device specifically comprises the following steps:

[0018] Step 1: Connect the fixed frame to the contact rail. First, place the two joint clamps symmetrically on both sides of the contact rail and tighten them in place with the joint bolts. Then, snap the fixed frame onto the contact rail and the joint clamps for preliminary fixation. Use the observation slot to locate and observe whether it is installed in place. After confirming that it is in place, tighten it by turning the fixed top screw on one side.

[0019] At the same time, the aircraft drill support and positioning assembly consisting of the aircraft drill fixing frame, frame sliding rod, frame sliding tube, telescopic spring, and sliding rod baffle on the other side is installed in place, and the sliding top screw for driving is connected to the sliding rod baffle;

[0020] Step 2: Install the aircraft drill. The aircraft drill support and positioning assembly is fixedly connected to the other side of the fixed frame. After the fixed frame is installed in place, the aircraft drill fixed frame and the frame sliding rod are installed in place synchronously. At this time, the aircraft drill is connected to an aircraft drill fixed frame through the aircraft drill fixing hole; at the same time, the operating rod is rotated to drive the working end of the sliding top screw to abut against the tail of the aircraft drill;

[0021] Step 3: Drilling operation: first align the drill bit on the aircraft drill with the drill bit positioning hole and pass through the drill bit positioning hole, then turn on the aircraft drill to make the drill bit rotate at a constant speed, and then push the aircraft drill forward in a straight line by turning the operating lever to complete the drilling operation; during the movement, the frame sliding tube is guided along the frame sliding rod.

[0022] Compared with the prior art, the beneficial technical effects of the utility model are:

[0023] The utility model discloses a contact rail joint opening fixing device, comprising a fixing frame and an aircraft drill supporting and positioning assembly, wherein the fixing frame is arranged as a U-shaped frame and is buckled on the contact rail, two sides of the fixing frame are respectively connected with fixing top screws and the aircraft drill supporting and positioning assembly, and a drill bit positioning hole is reserved in the middle of the other side of the fixing frame; wherein the aircraft drill fixing frame, a frame sliding rod, a frame sliding tube, a telescopic spring and a sliding rod baffle are assembled together to form the aircraft drill supporting and positioning assembly.

[0024] 1) Improved precision: By reserving an observation slot on the fixed frame, it is convenient to observe during positioning, so as to achieve more accurate fixation and rapid adjustment of the rail end of the contact rail; the aircraft drill support positioning assembly on the other side is used to fix the aircraft drill, and the frame sliding rod and frame sliding tube form a sliding guide mechanism. The aircraft drill is driven forward by the operating rod. The new drilling tool design realizes the stability of movement and precise positioning, so that the drilling accuracy of the utility model is improved by 20% compared with the traditional method, effectively reducing the error of the reserved drill bit positioning hole position and improving the installation success rate of the joint clamp;

[0025] 2) Enhanced efficiency: High-power aircraft drills and optimized workflows have increased drilling speed by 30%, significantly shortening the construction period and improving overall project efficiency, which will help the project to be completed and put into use as soon as possible to meet the travel needs of citizens;

[0026] 3) Enhanced safety: The design of the fixed frame wraps around the drilling operation, which reduces the noise generated by the equipment during operation to a certain extent, effectively controls dust, and meets environmental protection requirements; the control switch button on the aircraft drill can be used for emergency stop, and an emergency stop button and / or overload protection device can be set on the operating lever to ensure the safety of the operator and reduce the accident rate.

[0027] 4) Improved engineering quality: Due to the improvement of drilling accuracy, the installation quality of the contact rail is significantly improved, which helps to improve the stability and safety of the rail transit system;

[0028] 5) Cost reduction: Due to the improvement of drilling efficiency and precision, material waste and rework costs are reduced, further reducing the overall project cost;

[0029] 6) Increased benefits: The early commissioning of the project will bring greater economic and social benefits.

[0030] In general, the utility model has an ingenious conception and a reasonable layout. The reserved observation slot facilitates observation during positioning, allowing rapid adjustment of the rail end of the contact rail and more precise fixation. The new drill tool design achieves mobile stability and precise positioning, and the drilling accuracy and efficiency are significantly improved. Furthermore, the safety and environmental protection of the construction process of the utility model are improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] The utility model is further described below in conjunction with the accompanying drawings.

[0032] Figure 1 This is a schematic diagram of a contact rail joint opening and fixing device of the utility model;

[0033] Figure 2 It is a top view of the contact rail joint opening and fixing device of the utility model;

[0034] Figure 3 This is a front view of the contact rail joint opening and fixing device of the utility model;

[0035] Figure 4 This is a schematic diagram of the installation of the contact rail joint opening and fixing device of the utility model;

[0036] Figure 5 This is an effect diagram of the use status of the contact rail joint opening and fixing device of the utility model.

[0037] Explanation of the reference numerals: 1. fixing top screw; 2. position observation groove; 3. drill bit positioning hole; 4. fixing frame; 5. telescopic spring; 6. frame sliding tube; 7. aircraft drill fixing frame; 8. frame sliding rod; 9. sliding rod baffle; 10. baffle fixing bolt; 11. sliding top screw; 12. operating lever; 13. installing aircraft drill fixing hole; 14. spring baffle; 15. aircraft drill; 16. drill bit; 17. contact rail; 18. joint clamp; 19. joint bolt. DETAILED DESCRIPTION

[0038] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0039] like Figure 1-5 As shown, a contact rail joint opening and fixing device includes a fixing frame 4 and an aircraft drill support and positioning assembly. The fixing frame 4 is set as a U-shaped frame and is buckled on the contact rail 17. A fixing top screw 1 is connected to one side of the fixing frame 4, and a drill bit positioning hole 3 is reserved in the middle of the other side of the fixing frame 4. The design of the drill bit positioning hole 3 facilitates the alignment of the drill bit during drilling and improves the drilling accuracy. The aircraft drill support and positioning assembly is fixedly connected to the outer wall of the fixing frame 4 and is on the same side as the drill bit positioning hole 3.

[0040] Specifically, observation slots 2 for observation positions are provided on both sides of the top of the fixed frame 4. The center line of the observation slot 2 coincides with the center of the top surface of the contact rail 17, and the bottom of the observation slot 2 on one side corresponds to the rail end of the contact rail, so as to determine the punching position on the contact rail 17. The observation slots 2 are set as two U-shaped slots and are symmetrically distributed. The fixed frame can wrap the punching operation area, which reduces the noise generated by the equipment during operation to a certain extent, effectively controls dust, and meets environmental protection requirements. At the same time, the design of the observation slot 2 facilitates observation during positioning, so as to achieve more accurate fixation and rapid adjustment of the rail end of the contact rail.

[0041] Specifically, the aircraft drill support and positioning assembly includes an aircraft drill fixed frame 7 and a frame sliding rod 8. The aircraft drill fixed frame 7 is sleeved on the frame sliding rod 8 through a frame sliding tube 6 and moves linearly along the frame sliding rod 8. The frame sliding tube 6 and the frame sliding rod 8 form a sliding guide assembly, which makes the linear movement process more stable and smooth; one end of the frame sliding rod 8 is fixedly connected to the side wall of the fixed frame 4 and is located on both sides of the drill bit positioning hole 3, and the other end of the frame sliding rod 8 is positioned and connected together through a sliding rod baffle 9 and a baffle fixing bolt 10;

[0042] The frame sliding rod 8 is sleeved with a telescopic spring 5 for resetting, and the two ends of the telescopic spring 5 abut against the opposite surfaces of a set of the frame sliding tubes 6 and the fixed frame 4; the telescopic spring 5 mainly plays the role of resetting the aircraft drilling fixed frame after the drilling is completed;

[0043] The center of the sliding rod baffle 9 is connected with a sliding top screw 11, and the working end of the sliding top screw 11 abuts against the aircraft drill 15, and the aircraft drill 15 is installed on the aircraft drill fixing frame 7. During implementation, the aircraft drill is driven forward by the operating rod, and the new drilling tool design realizes the stability of movement and precise positioning, so that the drilling accuracy of the utility model is improved by 20% compared with the traditional method, effectively reducing the error of the reserved drill bit positioning hole position, and improving the installation success rate of the joint clamp.

[0044] Specifically, four frame sliding tubes 6 are provided and symmetrically mounted on two frame sliding rods 8. A spring baffle 14 is connected to a group of frame sliding tubes 6 close to the fixed frame 4, and one end of the telescopic spring 5 abuts against the side of the spring baffle 14. The diameter of the spring baffle 14 is larger than the outer diameter of the telescopic spring 5 to ensure the stability of positioning.

[0045] Positioning nuts are welded on both sides of the center hole of the sliding rod baffle 9, and the sliding top screw 11 is threadedly connected in the positioning nuts; the operating side of the sliding rod baffle 9 is connected to an operating rod 12.

[0046] Specifically, the aircraft drill fixing frame 7 includes a fixing plate body at the top and two supporting rods at the bottom, the frame sliding tube 6 is symmetrically welded on both sides of the fixing plate body, a fixing hole 13 for installing an aircraft drill is opened in the center of the fixing plate body, the bottom of the aircraft drill 15 is positioned in cooperation with the aircraft drill fixing hole 13, and a drill bit 16 is installed on the aircraft drill 15, and the drill bit 16 moves horizontally and linearly when working and passes through the drill bit positioning hole 3. During implementation, the aircraft drill fixing frame 7 and the aircraft drill 15 slide forward synchronously.

[0047] A joint clamping plate 18 is provided between the inner side surface of the fixing frame 4 and the contact rail 17 , and the fixing frame 4 is clamped and positioned on the two facing away surfaces of the joint clamping plates 18 and locked and positioned by fixing the top screw 1 .

[0048] like Figure 4 , Figure 5 As shown, a method for using the above-mentioned contact rail joint opening fixing device specifically includes the following steps:

[0049] Step 1: Connect the fixed frame to the contact rail. First, place the two joint clamps 18 symmetrically on both sides of the contact rail 17 and tighten them in place with the joint bolts 19. Then, snap the fixed frame 4 onto the contact rail 17 and the joint clamps 18 for preliminary fixation. Use the observation slot 2 to locate and observe whether they are installed in place. After confirming that they are in place, tighten them by turning the fixed top screw 1 on one side.

[0050] At the same time, the aircraft drill support and positioning assembly consisting of the aircraft drill fixing frame 7, frame sliding rod 8, frame sliding tube 6 telescopic spring 5, and sliding rod baffle 9 on the other side is installed in place, and the sliding top screw 11 for driving is connected to the sliding rod baffle 9;

[0051] Step 2, installation of the aircraft drill, the aircraft drill support positioning assembly is fixedly connected to the other side of the fixed frame 4, after the fixed frame 4 is installed in place, the aircraft drill fixed frame 7 and the frame sliding rod 8 are installed in place synchronously, at this time, the aircraft drill 15 is connected to an aircraft drill fixed frame 7 through the aircraft drill fixing hole 13; at the same time, the operating rod 12 is rotated to drive the working end of the sliding top screw 11 to abut against the tail of the aircraft drill 15;

[0052] Step 3, drilling operation, first align the drill bit 16 on the aircraft drill 15 with the drill bit positioning hole 3, and pass through the drill bit positioning hole 3, then turn on the aircraft drill 15 to make the drill bit 16 rotate at a constant speed, and then push the aircraft drill 15 forward in a straight line by rotating the operating lever 12 to complete the drilling operation; during the movement, the frame sliding tube 6 is guided along the frame sliding rod 8 to improve the smoothness and stability of the drilling operation.

[0053] Specifically, the drilling depth can be controlled by marking in advance. For example, when the drilling depth is 85 mm, measure the required position on the drill bit in advance and mark it. When the drill bit 16 passes through the drill bit positioning hole 3 during use, stop drilling when the marked position of the drill bit 16 coincides with the edge of the fixed frame 4; then rotate the aircraft drill in the opposite direction to exit.

[0054] The utility model provides a contact rail joint opening and fixing device, which provides a new hole drilling auxiliary device, which has a simple and reasonable design, and realizes the high efficiency and production standardization of hole drilling by using advanced mechanical principles and geometric structures; the device not only saves time and effort when operating, but also can significantly improve the drilling accuracy, effectively reduce human errors, and speed up the installation speed of the joint clamp; further, the device not only improves the installation quality of the contact rail, but also brings significant economic benefits, bringing revolutionary progress to the field of rail transit construction, and has broad prospects for promotion and application. The utility model effectively solves the problems of low efficiency and insufficient precision of hole drilling in the existing contact rail construction.

[0055] In addition, the control switch button on the aircraft drill can be used for emergency stop, and an emergency stop button and / or an overload protection device can be set on the operating lever to ensure the safety of the operator and reduce the accident rate.

[0056] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0057] The embodiments described above are only descriptions of the preferred methods of the present invention, and are not intended to limit the scope of the present invention. Without departing from the design spirit of the present invention, various modifications and improvements made to the technical solutions of the present invention by ordinary technicians in this field should fall within the protection scope determined by the claims of the present invention.

Claims

1. A contact rail joint opening fixing device, characterized in that: The invention comprises a fixed frame (4) and an aircraft drill support and positioning assembly, wherein the fixed frame (4) is arranged as a U-shaped frame and is buckled onto a contact rail (17), a fixed top screw (1) is connected to one side of the fixed frame (4), a drill bit positioning hole (3) is reserved in the middle of the other side of the fixed frame (4), and the aircraft drill support and positioning assembly is fixedly connected to the outer side wall of the fixed frame (4) and is on the same side as the drill bit positioning hole (3).

2. The contact rail joint opening and fixing device according to claim 1, characterized in that: Observation slots (2) for observation positions are provided on both sides of the top of the fixed frame (4), the center line of the observation slot (2) coincides with the center of the top surface of the contact rail (17), and the bottom of the observation slot (2) on one side corresponds to the end of the contact rail, thereby determining the punching position on the contact rail (17).

3. The contact rail joint opening and fixing device according to claim 2, characterized in that: The observation slots (2) are arranged as two U-shaped slots and are symmetrically distributed.

4. The contact rail joint opening and fixing device according to claim 1, characterized in that: The aircraft drill support and positioning assembly comprises an aircraft drill fixing frame (7) and a frame sliding rod (8); the aircraft drill fixing frame (7) is sleeved on the frame sliding rod (8) through a frame sliding tube (6) and moves linearly along the frame sliding rod (8); one end of the frame sliding rod (8) is fixedly connected to the side wall of the fixing frame (4) and is located on both sides of the drill bit positioning hole (3); the other end of the frame sliding rod (8) is positioned and connected together through a sliding rod baffle (9) and a baffle fixing bolt (10); The frame sliding rod (8) is sleeved with a telescopic spring (5) for resetting, and the two ends of the telescopic spring (5) abut against the opposite surfaces of a set of the frame sliding tubes (6) and the fixed frame (4); The center of the sliding rod baffle (9) is connected to a sliding top screw (11), and the working end of the sliding top screw (11) abuts against an aircraft drill (15), and the aircraft drill (15) is installed on the aircraft drill fixing frame (7).

5. The contact rail joint opening and fixing device according to claim 4, characterized in that: The frame sliding tubes (6) are provided in four numbers and are symmetrically sleeved on the two frame sliding rods (8).

6. The contact rail joint opening and fixing device according to claim 4, characterized in that: A spring baffle (14) is connected to a group of the frame sliding tubes (6) close to the fixed frame (4), and one end of the telescopic spring (5) abuts against the side surface of the spring baffle (14).

7. The contact rail joint opening and fixing device according to claim 4, characterized in that: Positioning nuts are welded on both sides of the central hole of the sliding rod baffle (9), and the sliding top screw (11) is threadedly connected in the positioning nuts; the operating side of the sliding rod baffle (9) is connected to an operating rod (12).

8. The contact rail joint opening and fixing device according to claim 4, characterized in that: The aircraft drill fixing frame (7) comprises a fixing plate body at the top and two supporting rods at the bottom. The frame sliding tube (6) is symmetrically welded on both sides of the fixing plate body. A fixing hole (13) for installing an aircraft drill is opened at the center of the fixing plate body. The bottom of the aircraft drill (15) is matched with the aircraft drill fixing hole (13) for positioning. A drill bit (16) is installed on the aircraft drill (15). When the drill bit (16) is working, it moves horizontally and linearly and passes through the drill bit positioning hole (3).

9. The contact rail joint opening and fixing device according to claim 4, characterized in that: A joint clamping plate (18) is provided between the inner side surface of the fixed frame (4) and the contact rail (17); the fixed frame (4) is clamped and positioned on the two facing away surfaces of the joint clamping plates (18) and is locked and positioned by fixing the top screw (1).

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