Steel rail drilling clamp and steel rail drilling machine

Abstract

The utility model relates to a steel rail drilling clamp and a steel rail drilling machine, and relates to the technical field of steel rail drilling machines. The steel rail drilling clamp comprises a rail clamp body, a first limiting face, a second limiting face and a third limiting face. A central hole is formed in the rail clamp body; the first limiting face is arranged on the rail clamp body, located above the center hole and connected with the lower jaw of the rail head in an abutting mode. The second limiting face is arranged on the rail clamp body, located below the first limiting face and connected with the rail waist in an abutting mode. The third limiting face is arranged at the bottom of the rail clamp body and abuts against the arc face of the rail bottom. The central axis of the central hole and the central axis of a drill bit of the steel rail drilling machine are located on the same height, and the distance between the central axis of the central hole and the rail head and the distance between the central axis of the central hole and the rail bottom are equal. According to the technical scheme, the problem that when an existing drilling machine drills holes in a steel rail, errors are likely to be generated, and consequently the mounting requirement of the axle counter cannot be met can be solved.

Description

Technical Field

[0001] The utility model relates to the technical field of rail drilling machines, and particularly to a rail drilling fixture and a rail drilling machine. Background Art

[0002] An axle counter is a device used to detect the number of axles of a train passing through a certain point (axle counting point) on the track, check the occupancy of the section between two axle counting points or a track section; or it can determine the position of the train passing through the axle counting point and automatically correct the train running mileage, etc. When installing the axle counter, a drilling machine is usually used to drill holes in the rail. However, since there is no special fixture on the drilling machine, errors are likely to occur during drilling, resulting in failure to meet the technical requirements for installing the axle counter device, affecting work efficiency and operation quality. Summary of the Utility Model

[0003] The embodiments of the present application provide a rail drilling fixture and a rail drilling machine, which can solve the problem that existing drilling machines are prone to errors when drilling holes in rails, resulting in failure to meet the installation requirements of axle counters.

[0004] In a first aspect, the embodiments of the present application provide a rail drilling fixture, including:

[0005] A rail clamping body provided with a central hole for installing on a rail drilling machine;

[0006] A first limiting surface is arranged on one side of the rail clamping body. The first limiting surface is located above the central hole and is used to abut against the lower jaw of the rail head;

[0007] A second limiting surface is arranged on one side of the rail clamping body. The second limiting surface is located below the first limiting surface and is used to abut against the rail web; and

[0008] A third limiting surface is arranged at the bottom of the rail clamping body. The third limiting surface is used to abut against the arc surface of the rail bottom;

[0009] Wherein, the central axis of the central hole is at the same height as the central axis of the drill bit of the rail drilling machine, and the distance from the central axis of the central hole to the rail head and the rail bottom is equal.

[0010] In an embodiment, the first limiting surface is an inclined surface, and the first limiting surface is parallel to the lower jaw of the rail head so that the first limiting surface fits with the lower jaw of the rail head.

[0011] In an embodiment, the third limiting surface is an arc surface, and the third limiting surface is adapted to the arc surface shape of the rail bottom.

[0012] In one embodiment, a groove is further provided on the rail clamp body. The groove penetrates the rail clamp body in the length direction, and one end of the groove is connected to the second limiting surface and the other end is connected to the third limiting surface.

[0013] In one embodiment, two limiting holes are further provided on the rail clamp body. The two limiting holes are arranged at intervals in the height direction, and the two limiting holes are respectively located on both sides of the central hole.

[0014] In one embodiment, the groove is located between the two limiting holes.

[0015] In one embodiment, a notch is further provided on the rail clamp body. The notch penetrates the rail clamp body in the length direction, and one end of the notch is connected to the first limiting surface and the other end is connected to the second limiting surface.

[0016] In one embodiment, the notch includes:

[0017] A first bent section, one end of which is connected to the first limiting surface, and a first preset angle is formed between the first bent section and the first limiting surface; and

[0018] A second bent section, one end of which is connected to the first bent section and the other end of which is connected to the second limiting surface, and a second preset angle is formed between the second bent section and the first bent section.

[0019] In one embodiment, the first preset angle is 130° and the second preset angle is 173°.

[0020] In a second aspect, an embodiment of the present application provides a rail drilling machine, including the rail drilling fixture as described above.

[0021] Compared with the prior art, the advantages of the embodiment of the present application are as follows: By providing a fixture installed on the rail drilling machine and setting the central axis of the central hole on the fixture and the central axis of the drill bit of the rail drilling machine at the same height, the position of drilling on the rail is located by using the position of the central hole; in addition, by setting the distances from the central axis of the central hole to the rail head and the rail web to be equal, it is ensured that the position of drilling on the rail is in the middle position of the rail web, so as to ensure that the drilling on the rail meets the installation requirements of the axle counter in the height direction, saving work efficiency and improving operation quality. By providing the first limiting surface, the second limiting surface and the third limiting surface to abut against the rail bottom, the rail web and the rail bottom respectively, the position of the fixture is ensured, and the fixture is prevented from deviating, resulting in drilling errors, so as to ensure that the position of drilling on the rail is more accurate. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The present utility model will be described in more detail below based on embodiments with reference to the accompanying drawings.

[0023] Figure 1 is a schematic structural diagram of a rail drilling fixture provided by an embodiment of the present utility model;

[0024] Figure 2 is Figure 1 a schematic diagram showing the cooperation between the rail drilling fixture provided by the embodiment in

[0025] Figure 3 is Figure 1 a schematic structural diagram of a rail provided by the embodiment in

[0026] Reference numerals:

[0027] 10, rail clamp body; 110, central hole; 120, groove; 130, limit hole; 140; notch; 1401, first bent section; 1402, second bent section;

[0028] 20, first limiting surface;

[0029] 30, second limiting surface;

[0030] 40, third limiting surface; 410, main limiting surface; 420, sub-limiting surface;

[0031] 50, rail; 510, rail head; 5101, lower jaw; 520, rail web; 530, rail base. Detailed implementation manners

[0032] The present utility model will be further described below with reference to the accompanying drawings.

[0033] An axle counter is a device used to detect the number of axles of a train passing through a certain point (axle counting point) on the track, check the occupancy of the section between two axle counting points or the track section; or can determine the position of the train passing through the axle counting point and automatically correct the train running mileage, etc. When installing the axle counter, a drilling machine is usually used to drill holes in the rail. However, since there is no special fixture on the drilling machine, errors are likely to occur during drilling, resulting in failure to meet the technical requirements for installing the axle counter device, affecting work efficiency and operation quality.

[0034] Embodiment 1

[0035] As Figures 1 - 3As shown in the figure, to solve the above technical problems, an embodiment of the present application provides a rail drilling fixture, which includes a rail clamp body 10, a first limiting surface 20, a second limiting surface 30, and a third limiting surface 40; the rail clamp body 10 is provided with a central hole 110 for installing on a rail drilling machine; the first limiting surface 20 is arranged on one side of the rail clamp body 10, the first limiting surface 20 is located above the central hole 110 and is used to abut against the lower jaw 5101 of the rail head 510; the second limiting surface 30 is arranged on one side of the rail clamp body 10, the second limiting surface 30 is located below the first limiting surface 20 and is used to abut against the rail web 520; the third limiting surface 40 is arranged at the bottom of the rail clamp body 10, and the third limiting surface 40 is used to abut against the arc surface of the rail base 530; wherein, the central axis of the central hole 110 and the central axis of the drill bit of the rail drilling machine are at the same height, and the distances from the central axis of the central hole 110 to the rail head 510 and the rail base 530 are equal.

[0036] As can be seen from the above, by setting a fixture installed on the rail drilling machine and setting the central axis of the central hole 110 on the fixture and the central axis of the drill bit of the rail drilling machine at the same height, the position of drilling on the rail 50 is located by using the position of the central hole 110; in addition, by setting the distances from the central axis of the central hole 110 to the rail head 510 and the rail web 520 to be equal, it is ensured that the position of drilling on the rail 50 is in the middle position of the rail web 520, so as to ensure that the drilling on the rail 50 meets the installation requirements of the axle counter in the height direction, saving work efficiency and improving operation quality. By setting the first limiting surface 20, the second limiting surface 30 and the third limiting surface 40 to abut against the rail base 530, the rail web 520 and the rail base 530 respectively, the position of the fixture is ensured, and the fixture is prevented from deviating, resulting in drilling errors, so as to ensure that the position of drilling on the rail 50 is more accurate.

[0037] It should be noted that, as Figure 3 shown, the rail 50 includes a rail head 510, a rail web 520 and a rail base 530, and the rail head 510 and the rail base 530 are respectively located at both ends of the rail web 520; the rail head 510 is in direct contact with the wheel set of the train and bears the gravity of the train; the rail web 520 receives the force transmitted from the rail head 510 and transmits it to the rail base 530. The rail base 530 transmits the force of the rail web 520 to the sleeper and is in direct contact with the sleeper.

[0038] It should also be noted that the rail drilling machine includes a power part and a drilling part, the drilling part includes a drill bit, the power part can use an electric motor or a small gasoline engine, and the drill bit is driven to move by the power part; the rail drilling machine is provided with fixed bolt holes, and the central hole 110 on the rail clamp body 10 is aligned with the fixed bolt holes, and the rail clamp body 10 is installed and fixed on the rail drilling machine through bolts.

[0039] It should also be noted that, as Figure 2 shown, the distance between the central axis of the central hole 110 and the rail head 510 is L1, and the distance between the central axis of the central hole 110 and the rail base 530 is L2, and L1 = L2. For example, when using the rail drilling fixture of the present utility model to drill a 60 kg / m rail 50, it can ensure that the distance L3 between the drilled hole and the rail base 530 is 70 mm.

[0040] Embodiment 2

[0041] As Figures 1 - 3 shown, the rail drilling fixture includes a rail clamping body 10, a first limiting surface 20, a second limiting surface 30, and a third limiting surface 40; the rail clamping body 10 is provided with a central hole 110 for mounting on a rail drilling machine; the first limiting surface 20 is arranged on one side of the rail clamping body 10, the first limiting surface 20 is located above the central hole 110 and is used for abutting against the lower jaw 5101 of the rail head 510; the second limiting surface 30 is arranged on one side of the rail clamping body 10, the second limiting surface 30 is located below the first limiting surface 20 and is used for abutting against the rail web 520; the third limiting surface 40 is arranged at the bottom of the rail clamping body 10, and the third limiting surface 40 is used for abutting against the arc surface of the rail base 530; wherein, the central axis of the central hole 110 and the central axis of the drill bit of the rail drilling machine are at the same height, and the distances between the central axis of the central hole 110 and the rail head 510 and the rail base 530 are equal.

[0042] As can be seen from the above, by setting a fixture mounted on the rail drilling machine and setting the central axis of the central hole 110 on the fixture and the central axis of the drill bit of the rail drilling machine at the same height, the position of drilling on the rail 50 is located by using the position of the central hole 110; in addition, by setting the distances between the central axis of the central hole 110 and the rail head 510 and the rail web 520 to be equal, it is ensured that the position of the drilled hole on the rail 50 is in the middle position of the rail web 520, so as to ensure that the drilled hole on the rail 50 meets the installation requirements of the axle counter in the height direction, saving work efficiency and improving operation quality. By setting the first limiting surface 20, the second limiting surface 30, and the third limiting surface 40 to abut against the rail base 530, the rail web 520, and the rail base 530 respectively, the position of the fixture is ensured, and the fixture is prevented from deviating, resulting in drilling errors, so as to ensure that the position of the drilled hole on the rail 50 is more accurate.

[0043] It should be noted that, as Figure 3 shown, the rail 50 includes a rail head 510, a rail web 520, and a rail base 530. The rail head 510 and the rail base 530 are respectively located at both ends of the rail web 520; the rail head 510 is in direct contact with the wheel set of the train and bears the gravity of the train; the rail web 520 receives the force transmitted from the rail head 510 and transmits it to the rail base 530. The rail base 530 transmits the force of the rail web 520 to the sleeper and is in direct contact with the sleeper.

[0044] It should also be noted that the rail drilling machine includes a power part and a drilling part. The drilling part includes a drill bit. The power part can use an electric motor or a small gasoline engine to drive the drill bit to move. The rail drilling machine is provided with fixing bolt holes. The central hole 110 on the rail clamp body 10 is aligned with the fixing bolt holes, and the rail clamp body 10 is installed and fixed on the rail drilling machine through bolts.

[0045] It should also be noted that, as Figure 2 shown, the distance between the central axis of the central hole 110 and the rail head 510 is L1, and the distance between the central axis of the central hole 110 and the rail bottom 530 is L2, and L1 = L2. For example, when using the rail drilling fixture of the present utility model to drill the rail 50 of 60 kg / m, it can ensure that the distance L3 between the drill hole and the rail bottom 530 is 70 mm.

[0046] As Figure 1 shown, in some embodiments, the first limiting surface 20 is an inclined surface and is parallel to the lower jaw 5101 of the rail head 510, so that the first limiting surface 20 fits with the lower jaw 5101 of the rail head 510.

[0047] By setting the first limiting surface 20 parallel to the lower jaw 5101 of the rail head 510, the first limiting surface 20 can be matched with the shape of the lower jaw 5101 of the rail head 510, ensuring the degree of fit between the first limiting surface 20 and the lower jaw 5101 of the rail head 510, thereby avoiding the offset of the rail clamp body 10 and ensuring the accuracy of the drilling position.

[0048] It should be noted that the angle between the first limiting surface 20 and the plane perpendicular to the height direction is determined according to the angle between the lower jaw 5101 of the rail head 510 and the plane perpendicular to the height direction. In addition, as Figure 1 shown, the height direction is parallel to the Z direction. For example, the angle between the first limiting surface 20 and the plane perpendicular to the height direction is 33.3°.

[0049] As Figure 1 shown, in some embodiments, the third limiting surface 40 is an arc surface and is adapted to the arc surface shape of the rail bottom 530.

[0050] By setting the third limiting surface 40 to be matched with the arc surface shape of the rail bottom 530, the degree of fit between the third limiting surface 40 and the arc surface of the rail bottom 530 is ensured, thereby avoiding the offset of the rail clamp body 10 and ensuring the accuracy of the drilling position.

[0051] It should be noted that the structure and radius of the third limiting surface 40 are determined according to the arc surface of the rail bottom 530. For example, as Figure 1As shown, the third limiting surface 40 includes a main limiting surface 410 and a secondary limiting surface 420 connected to one end of the main limiting surface 410. Among them, the radius of the main limiting surface 410 is 20 mm, and the radius of the secondary limiting surface 420 is 40 mm.

[0052] As Figure 1 shown, in some embodiments, a groove 120 is further provided on the rail clip body 10. The groove 120 penetrates the rail clip body 10 in the length direction, and one end of the groove 120 is connected to the second limiting surface 30 and the other end is connected to the third limiting surface 40.

[0053] By providing the groove 120 to observe the fitting degrees of the second limiting surface 30 and the third limiting surface 40 with the rail web 520 and the rail base 530 respectively, the rail clip body 10 can be adjusted in time, thereby ensuring the accuracy of the position of the rail clip body 10.

[0054] It should be noted that, as Figure 1 shown, the groove 120 is a U-shaped groove, and the height of the groove 120 is set as required. For example, the height of the groove 120 is 57 mm.

[0055] It should also be noted that, as Figure 1 shown, one end of the groove 120 away from the second limiting surface 30 is connected to the main limiting surface 410.

[0056] As Figure 1 shown, in some embodiments, two limiting holes 130 are further provided on the rail clip body 10. The two limiting holes 130 are arranged at intervals in the height direction, and the two limiting holes 130 are respectively located on both sides of the central hole 110.

[0057] By providing the two limiting holes 130 and using the cooperation between the limiting holes 130 and the fixed shafts on the rail drilling machine, not only can the rail drilling machine be stabilized, but also the positions of the rail clip body 10 and the central hole 110 can be ensured not to deviate.

[0058] It should be noted that two fixed shafts are provided on the rail drilling machine. The two fixed shafts are arranged at intervals in the height direction and are respectively located on both sides of the central hole 110. The two limiting holes 130 correspond to the two fixed shafts one by one, and the limiting holes 130 are for the corresponding fixed shafts to be inserted.

[0059] It should also be noted that the distance between the two limiting holes 130 is determined according to the distance between the two fixed shafts on the rail drilling machine, and the distance between the limiting holes 130 and the central hole 110 is determined according to the distance between the fixed shaft and the fixed bolt hole on the rail drilling machine.

[0060] As Figure 1 shown, in some embodiments, the groove 120 is located between the two limiting holes 130.

[0061] By setting the groove 120 between the first limiting hole 130 and the second limiting hole 130, the position of the groove 120 in the height direction is defined.

[0062] As Figure 1 shown, in some embodiments, a notch 140 is further provided on the rail clamp body 10. The notch 140 penetrates the rail clamp body 10 in the length direction, and one end of the notch 140 is connected to the first limiting surface 20 and the other end is connected to the second limiting surface 30.

[0063] In some embodiments, the notch 140 includes a first bent section 1401 and a second bent section 1402; one end of the first bent section 1401 is connected to the first limiting surface 20, and there is a first preset angle between the first bent section 1401 and the first limiting surface 20; one end of the second bent section 1402 is connected to the first bent section 1401 and the other end is connected to the second limiting surface 30, and there is a second preset angle between the second bent section 1402 and the first bent section 1401.

[0064] By setting the notch 140 to observe the fitting degrees of the first limiting surface 20 and the second limiting surface 30 with the rail head 510 and the rail web 520 respectively, the rail clamp body 10 can be adjusted in time, so as to ensure the accuracy of the position of the rail clamp body 10. In addition, by

[0065] In some embodiments, the first preset angle is 130° and the second preset angle is 173°.

[0066] Embodiment III

[0067] The embodiment of the present application further provides a rail drilling machine, including the rail drilling fixture of any embodiment of the present application, and thus having all the technical effects brought by the technical solutions of the above embodiments.

[0068] It should be noted that the rail drilling machine includes two rail drilling fixtures, the two rail drilling fixtures are arranged at intervals face to face, and the drill bit is located between the two rail drilling fixtures.

[0069] Although the present invention has been described with reference to the preferred embodiments, various improvements can be made to it and its components can be replaced with equivalents without departing from the scope of the present invention. In particular, as long as there is no structural conflict, the technical features mentioned in each embodiment can be combined in any way. The present invention is not limited to the specific embodiments disclosed in the text, but includes all technical solutions falling within the scope of the claims.

Claims

1. A rail drilling fixture, characterized in that: include: The rail clamp body is provided with a center hole for mounting on a rail drilling machine; A first limiting surface is provided on one side of the rail clamp body, the first limiting surface is located above the central hole and is used to abut against the lower jaw of the rail head; a second limiting surface, disposed on one side of the rail clamp body, the second limiting surface being located below the first limiting surface and being used to abut against the rail waist; and A third limiting surface is provided at the bottom of the rail card body, and the third limiting surface is used to abut against the arc surface of the rail bottom; The central axis of the center hole is at the same height as the central axis of the drill bit of the rail drilling machine, and the central axis of the center hole is equidistant from the rail head and the rail bottom.

2. The rail drilling fixture according to claim 1, characterized in that: The first limiting surface is an inclined surface, and the first limiting surface is parallel to the lower jaw of the rail head, so that the first limiting surface fits the lower jaw of the rail head.

3. The rail drilling fixture according to claim 2, characterized in that: The third limiting surface is an arc surface, and the third limiting surface is adapted to the arc surface shape of the rail bottom.

4. The rail drilling fixture according to claim 3, characterized in that: The rail card body is further provided with a groove, the groove passes through the rail card body in the length direction, one end of the groove is connected to the second limiting surface and the other end of the groove is connected to the third limiting surface.

5. The rail drilling fixture according to claim 4, characterized in that: The rail card body is also provided with two limiting holes, which are arranged at intervals along the height direction and are respectively located on both sides of the central hole.

6. The rail drilling fixture according to claim 5, characterized in that: The groove is located between the two limiting holes.

7. The rail drilling fixture according to claim 3, characterized in that: The rail card body is further provided with a notch, the notch passes through the rail card body in the length direction, one end of the notch is connected to the first limiting surface and the other end of the notch is connected to the second limiting surface.

8. The rail drilling fixture according to claim 7, characterized in that: The gaps include: A first bending section, one end of which is connected to the first limiting surface, and a first preset angle is formed between the first bending section and the first limiting surface; and The second bending section has one end connected to the first bending section and the other end connected to the second limiting surface, and a second preset angle is formed between the second bending section and the first bending section.

9. The rail drilling fixture according to claim 8, characterized in that: The first preset angle is 130°, and the second preset angle is 173°.

10. A rail drilling machine, characterized in that: It comprises the rail drilling fixture as described in any one of claims 1-9.

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