Subway track magnetic drill

Abstract

The utility model relates to the technical field of track maintenance, in particular to a subway track magnetic drill. The drilling machine comprises a drilling machine body, a bottom plate is arranged at the bottom of the drilling machine body, the tail of the bottom plate is fixed to an electromagnet body through a pair of top hole bolts, an anti-loosening assembly is arranged at the tail of the electromagnet body, the anti-loosening assembly is fixed to the top hole bolts, and an anti-retreating assembly is arranged at the front end of the top of the electromagnet body. According to the utility model, the drilling machine is stably adsorbed on the rail web of the steel rail through strong electromagnetic force generated by electrifying the electromagnet, so that the drilling machine can be kept stable during working, the shaking is greatly reduced, the precision of a drilled hole is high, the position is accurate, the problem of poor drilling quality caused by shaking is avoided, and a good foundation is provided for the subsequent installation of an axle counting magnetic head.

Description

TECHNICAL FIELD

[0001] The utility model relates to track maintenance technical field especially relates to a subway track magnetic force drill. BACKGROUND

[0002] In the maintenance and repair project of subway signal system equipment, each line generally adopts axle counting track circuit, the circuit detects train axle through axle counting magnetic head to determine the occupation and idle state of track section, which plays a key role in ensuring the safety and efficient operation of subway train.

[0003] In the process of subway operation, the replacement of steel rail by the engineering department is a routine and necessary work. However, this work needs close cooperation with the electric power department to re-drill holes in the newly replaced steel rail and install axle counting magnetic head track equipment. And within the specified time node at the end of the construction, the axle counting equipment must be restored to normal use state to ensure that the subsequent subway train is not affected.

[0004] In the past, the replacement of rail drilling work is mainly assisted by the hook drill rig. However, in actual operation, this traditional hook drill exposes many serious problems. Because the connection between the hook and the steel rail is not firm enough, the drill rig is prone to shaking during work. This shaking has a great negative impact on the drilling quality, resulting in problems such as insufficient accuracy and position deviation of the drilled hole. And the drilling quality directly determines the difficulty of adjusting the parameters when installing the axle counting magnetic head. If the magnetic head parameters cannot meet the standard requirements, the axle counting equipment will not work normally, thereby affecting the train safety and efficiency.

[0005] In actual construction, the situation that the adjustment parameters of axle counting caused by hook drill are difficult to debug is common, which not only prolongs the recovery time of axle counting equipment, but even in some extreme cases, the construction is delayed, thereby causing safety accidents affecting train operation, and bringing great challenge to the normal operation order of subway. UTILITY MODEL CONTENTS

[0006] The utility model aims at overcoming the prior art deficiencies, providing a subway track magnetic force drill to solve the problems in the background art.

[0007] The utility model solves its technical problems by the following technical scheme:

[0008] A subway track magnetic force drill it includes the drill rig main part, the drill rig main part bottom is provided with the bottom plate, the bottom plate tail is fixed with the electromagnet main body through a pair of top hole bolts, the electromagnet main body tail is provided with the anti-loosening assembly, the anti-loosening assembly is fixed with the top hole bolt, the electromagnet main body top front end is provided with the anti-backout assembly.

[0009] Moreover, the anti-loosening assembly comprises a mounting cylinder arranged at the back of the electromagnet body, the mounting cylinder is connected with the electromagnet body through a connecting handle, a stop disc is movably arranged in the mounting cylinder, a reverse L-shaped rod is arranged at the top of the stop disc, a spring is arranged on the outer side of the reverse L-shaped rod, the spring is arranged between the stop disc and the top surface in the mounting cylinder, a pull handle is arranged at the top of the reverse L-shaped rod, a connecting rod is arranged at the front end of the top of the reverse L-shaped rod, and hexagonal insertion rods are symmetrically arranged at the bottom of the connecting rod.

[0010] Moreover, the anti-loosening assembly comprises a mounting cylinder arranged at the back of the electromagnet body, the mounting cylinder is connected with the electromagnet body through a connecting handle, a stop disc is movably arranged in the mounting cylinder, a reverse L-shaped rod is arranged at the top of the stop disc, a spring is arranged on the outer side of the reverse L-shaped rod, the spring is arranged between the stop disc and the top surface in the mounting cylinder, a pull handle is arranged at the top of the reverse L-shaped rod, a connecting rod is arranged at the front end of the top of the reverse L-shaped rod, and hexagonal insertion rods are symmetrically arranged at the bottom of the connecting rod.

[0011] Moreover, a pair of guide insertion rails are arranged at the top of the electromagnet body, and the bottom plate is inserted between the two guide insertion rails.

[0012] The subway track magnetic drill has the advantages that:

[0013] 1. The subway track magnetic drill is firmly adsorbed on the rail waist through the strong electromagnetic force generated by the energization of the electromagnet, so that the drill can be kept stable during work, the shaking is greatly reduced, the drilled hole is high in accuracy and accurate in position, the problem of poor drilling quality caused by shaking is avoided, and a good foundation is provided for the installation of the subsequent axle counting magnetic head.

[0014] 2. The subway track magnetic drill is provided with the anti-back-off assembly, the hexagonal insertion rod is embedded into the top hole bolt through the spring driving, the connection is strengthened, the vibration is resisted, the bolt loosening is prevented, the drill structure is kept stable, the connection is stable, the drill does not have displacement deviation during drilling, the high drilling precision is ensured, and the accurate installation of the axle counting magnetic head is facilitated. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is an overall front structure schematic view of the utility model;

[0016] Figure 2 It is an overall back structure schematic view of the utility model;

[0017] Figure 3 It is Figure 2 It is an enlarged view of A in the middle;

[0018] Figure 4 It is an electromagnet body structure schematic view of the utility model;

[0019] Figure 5 It is a structure schematic view when the anti-loosening assembly is cut open and the mounting cylinder is installed; It is a structure schematic view when the anti-loosening assembly is cut open and the mounting cylinder is installed;

[0020] Figure 6 The utility model discloses a prevent retreat subassembly structure schematic drawing.

[0021] Reference sign: electromagnet main body 1, guide rail 10, drilling machine main body 2, bottom plate 20, prevent retreat subassembly 3, support plate 30, pivot 31, stop lever 32, U-shaped placing block 33, insert column 34, anti-loose assembly 4, installation cylinder 40, handle 41, stop disc 42, inverted L-shaped rod 43, spring 44, connecting rod 45, hexagonal insert rod 46, pull handle 47, top hole bolt 5. DETAILED DESCRIPTION

[0022] The utility model will be further described in detail below through specific embodiment, and the following embodiment is only descriptive, is not limitative, and the protection scope of the utility model can not be limited by this.

[0023] As Figures 1-6 The utility model discloses a subway track magnetic force drill mainly includes drilling machine main body 2, bottom plate 20, electromagnet main body 1, anti-loose assembly 4 and prevent retreat subassembly 3 and is formed, and each part is closely cooperated, and the stability and reliability of the drilling machine in the working process are ensured.

[0024] The bottom of drilling machine main body 2 is equipped with bottom plate 20, and bottom plate 20 is fixedly connected with the tail of electromagnet main body 1 through a pair of top hole bolts 5, and this connection mode provides the preliminary stable basis for drilling machine main body 2 and electromagnet main body 1, is provided with prevent retreat subassembly 3 at the top front end of electromagnet main body 1, and is used for preventing the displacement situation such as backward movement of the drilling machine when working, and is equipped with anti-loose assembly 4 at the tail of electromagnet main body 1, and the assembly is connected with top hole bolt 5, and the stability of connection is further enhanced, and top hole bolt 5 is prevented from loosening under the working condition such as vibration.

[0025] The anti-loosening assembly 4 mainly comprises a mounting cylinder 40, a stop disc 42, an inverted L-shaped rod 43, a spring 44, a pull handle 47, a connecting rod 45 and a hexagonal insertion rod 46. The mounting cylinder 40 is located at the back of the electromagnet body 1 and is stably connected with the electromagnet body 1 through a connecting handle 41. The stop disc 42 is movably arranged in the mounting cylinder 40. The top of the stop disc 42 is fixedly connected with the inverted L-shaped rod 43. The outer side of the inverted L-shaped rod 43 is sleeved with the spring 44. The two ends of the spring 44 are respectively arranged between the stop disc 42 and the inner top surface of the mounting cylinder 40. The top of the inverted L-shaped rod 43 extends out of the mounting cylinder 40 and is provided with the pull handle 47, which is convenient for the operator to pull. The top end of the inverted L-shaped rod 43 is connected with the connecting rod 45. The bottom of the connecting rod 45 is symmetrically provided with the hexagonal insertion rod 46. When the top hole bolt 5 needs to be fixed, the operator pulls the pull handle 47 to drive the inverted L-shaped rod 43, the connecting rod 45 and the hexagonal insertion rod 46 to move upward. At this time, the top hole bolt 5 can be installed at the specified position. Then, the pull handle 47 is loosened. Under the elastic force of the spring 44, the stop disc 42 is pressed downward to drive the inverted L-shaped rod 43, the connecting rod 45 and the hexagonal insertion rod 46 to move downward, so that the hexagonal insertion rod 46 is accurately inserted into the hexagonal insertion slot prearranged at the top of the top hole bolt 5, thereby effectively preventing the top hole bolt 5 from loosening and rotating.

[0026] The anti-retreating assembly 3 mainly comprises a pair of supporting plates 30, a rotating shaft 31, a blocking rod 32, a U-shaped placing block 33 and an insertion column 34. A pair of supporting plates 30 are symmetrically arranged at the top front end of the electromagnet body 1. The two supporting plates 30 are movably connected through the rotating shaft 31, so that the blocking rod 32 can rotate around the rotating shaft 31. The blocking rod 32 is installed on the rotating shaft 31 and can freely rotate around the rotating shaft 31. The U-shaped placing block 33 is arranged at a position symmetric to the supporting plate 30 on the electromagnet body 1. When the drilling machine is installed, the end of the blocking rod 32 away from the supporting plate 30 is rotated into the U-shaped placing block 33 and is fixed through the insertion column 34. This structure can effectively prevent the drilling machine body 2 from retreating during operation and ensure that the drilling machine always stays in a stable working position.

[0027] A pair of guide insertion rails 10 are arranged at the top of the electromagnet body 1. The bottom plate 20 at the bottom of the drilling machine body 2 is inserted between the two guide insertion rails 10. The guide insertion rails 10 provide accurate guidance for the insertion of the bottom plate 20, ensuring the accuracy of the connection between the bottom plate 20 and the electromagnet body 1, and to some extent, limiting the horizontal displacement of the bottom plate 20, further enhancing the stability of the entire drilling machine structure.

[0028] When installing the drilling machine, first, the bottom plate 20 at the bottom of the drilling machine body 2 is accurately aligned with the front ends of the two guide insertion rails 10 and is slowly inserted until it is in place. At this time, the drilling machine body 2 is preliminarily combined with the guide insertion rails 10, laying a foundation for subsequent fixing operations.

[0029] Next, the fixing operation of the stop lever 32 is carried out, the stop lever 32 is rotated with the rotating shaft 31 as the center, and the other end is just placed in the U-shaped placing block 33 to form a stable limiting structure, then the insertion column 34 is inserted into the corresponding insertion hole, and the fixing of the stop lever 32 is completed, which effectively prevents the accidental sliding of the drilling machine body 2 on the guide rail 10;

[0030] After the above steps are completed, the pull handle 47 is manually pulled, and under the action of the pulling force, the inverted L-shaped rod 43 and the two hexagonal insertion rods 46 connected thereto are synchronously lifted, at this time, the bottom plate 20 is fixed with the electromagnet body 1 by using the top hole bolt 5, and in the fixing process, it is necessary to ensure that the installation position of the top hole bolt 5 is accurate and correct, so that the bottom plate 20 is tightly attached to the electromagnet body 1 to form a stable connection;

[0031] After being fixed in place, special attention should be paid to check the positional relationship between the inner hexagonal hole at the top of the two top hole bolts 5 and the hexagonal insertion rod 46, and it is necessary to ensure that they are completely aligned, after alignment, the pull handle 47 is slowly loosened, at this time, under the elastic force of the spring 44, the pressing disc 42 is extruded, thereby pushing the inverted L-shaped rod 43 downward, and with the downward pressing of the inverted L-shaped rod 43, the two hexagonal insertion rods 46 connected thereto are inserted into the inner hexagonal slot at the top of the top hole bolt 5, and this close nesting structure effectively ensures that the top hole bolt 5 cannot be loosened and rotated in the subsequent use process, greatly enhancing the stability of the entire drilling machine installation structure;

[0032] In actual use of the utility model, the working principle is based on the electromagnetic adsorption characteristics of the electromagnet, when the electromagnet is powered on, a strong electromagnetic force will be immediately generated, and this electromagnetic force can firmly adsorb the drilling machine on the rail waist, compared with the traditional hook drill, this adsorption method has obvious advantages, the traditional hook drill is often not firm, and the shaking phenomenon easily occurs during work, the utility model completely overcomes this problem by the electromagnetic adsorption method, provides solid protection for efficient and accurate drilling operation, and effectively improves the success rate and standard rate of the axle magnet head installation adjustment.

[0033] Although the embodiments and drawings of the utility model are disclosed for the purpose of illustration, those skilled in the art can understand that various substitutions, changes and modifications are possible without departing from the spirit and scope of the utility model and the appended claims, therefore the scope of the utility model is not limited to the disclosed content of the embodiments and drawings.

Claims

1. A subway track magnetic drill, comprising a drill main body (2), the bottom of the drill main body (2) is provided with a bottom plate (20), the tail of the bottom plate (20) is fixed with an electromagnet main body (1) through a pair of top hole bolts (5), characterized in that: The electromagnet body (1) tail is provided with anti-loosening assembly (4), anti-loosening assembly (4) is fixed with top hole bolt (5), the electromagnet body (1) top front is provided with anti-retreating assembly (3).

2. The subway track magnetic drill according to claim 1, characterized in that: The anti-loosening assembly (4) includes a mounting cylinder (40) disposed on the back of the electromagnet body (1), the mounting cylinder (40) is connected to the electromagnet body (1) by a connecting handle (41), a stop disc (42) is movably disposed in the mounting cylinder (40), a reverse L-shaped rod (43) is disposed on the top of the stop disc (42), a spring (44) is disposed on the outside of the reverse L-shaped rod (43), the spring (44) is arranged between the stop disc (42) and the top surface of the mounting cylinder (40), a pull handle (47) is disposed on the top of the reverse L-shaped rod (43), a connecting rod (45) is disposed on the top front end of the reverse L-shaped rod (43), a hexagonal insertion rod (46) is symmetrically disposed on the bottom of the connecting rod (45), and the hexagonal insertion rod (46) is inserted into the top of the top hole bolt (5).

3. The subway track magnetic drill according to claim 1, characterized in that: The anti-retreating assembly (3) includes a pair of support plates (30), a rotating shaft (31) is movably disposed between the two support plates (30), a stop rod (32) is disposed on the rotating shaft (31), a U-shaped placement block (33) is disposed on the electromagnet body (1) symmetrically with the support plate (30), one end of the stop rod (32) away from the support plate (30) is placed in the U-shaped placement block (33), and is fixed by a plug column (34).

4. The subway track magnetic drill according to claim 3, characterized in that: The electromagnet body (1) top is provided with a pair of guide insertion rails (10), the guide insertion rails (10), the bottom plate (20) is inserted between the two guide insertion rails (10).

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