Auxiliary guide device of steel rail grinding equipment

Abstract

The utility model relates to the technical field of steel rail grinding equipment, in particular to an auxiliary guide device of the steel rail grinding equipment. The auxiliary guide device is provided with the push-pull assembly and the swing arm assembly, the push-pull assembly drives the swing arm assembly to swing so as to drive the guide wheels at the lower end of the swing arm assembly to swing, the distance between the guide wheels on the two sides can be controlled by controlling the push-pull assembly in the using process, the guide wheels can abut against a steel rail in a rolling mode, and the service life of the guide wheels is prolonged. The grinding equipment is helped to run along a steel rail route, and the deviation phenomenon is reduced; meanwhile, the contact points of the grinding equipment and the steel rail can be increased by additionally arranging the guide wheels, the steel rail is helped to keep stable running, part of loads of the main wheels are shared, abrasion of the main wheels is relieved, and the service life of the main wheels is prolonged.

Description

Technical Field

[0001] This application relates to the field of rail grinding equipment technology, and in particular to an auxiliary guiding device for rail grinding equipment. Background Technology

[0002] In railway transportation systems, rails are a crucial foundational component ensuring the normal operation of railways. During service, rails can suffer various types of damage, such as wavy wear, rail surface abrasion, rail surface peeling, severe railside wear, cracks, and rail head crushing. Once these surface damages appear, they develop rapidly, impacting railway transport capacity and economic efficiency. Currently, the surface damage of rails is generally treated by grinding the upper part of the rail head using grinding equipment. This effectively removes various surface damages and also polishes the rail surface, significantly improving the wheel-rail relationship and enhancing the smoothness and safety of train operation.

[0003] The invention patent with patent publication number CN113152177A and patent application date of April 26, 2021 discloses a rail edge grinding device and rail grinding vehicle. In use, the grinding vehicle is moved by the traveling wheels. During the movement, multiple grinding heads are used to grind the rail head to remove damage such as thick edges and corrugations. In the actual grinding process, the grinding vehicle is prone to lateral deviation when moving on the sleeper, which causes one grinding head to over-grind while the other grinding head is not fully ground, thus affecting the grinding efficiency. Utility Model Content

[0004] The present invention aims to solve the problem that the grinding vehicle is prone to deviating when traveling on the sleepers, and thus provides an auxiliary guiding device for the grinding equipment to keep the grinding equipment in the correct direction of travel and avoid the grinding equipment from deviating.

[0005] The technical solution adopted by this utility model to solve the aforementioned problem is:

[0006] An auxiliary guiding device for rail grinding equipment is installed at the bottom of the support of the grinding equipment. Push-pull components are hinged to both sides of the bottom of the support. A swing arm component is hinged to the inner end of the push-pull component. The upper end of the swing arm component is hinged to the bottom of the support. A guide wheel is rotatably connected to the lower end of the swing arm component. The push-pull component is used to drive the swing arm component to deform. The swing arm component is used to drive the guide wheel to swing. The guide wheel is used to abut against the rail.

[0007] Compared with the prior art, the advantages of this utility model, which adopts the above technical solution, are as follows:

[0008] The auxiliary guiding device of this utility model is equipped with a push-pull assembly and a swing arm assembly. The push-pull assembly drives the swing arm assembly to swing, which in turn drives the guide wheel at the lower end of the swing arm assembly to swing. In use, by controlling the push-pull assembly, the distance between the guide wheels on both sides can be controlled, so that the guide wheels can keep rolling against the rail, thereby helping the grinding equipment to travel along the rail line and reducing deviation. At the same time, by adding guide wheels, the contact points between the grinding equipment and the rail can be increased, which helps the rail maintain stable travel, and also shares part of the load of the main wheel, reducing the wear of the main wheel and extending the service life of the main wheel.

[0009] As a preferred embodiment, a further technical solution of this utility model is:

[0010] The push-pull assembly includes a drive motor, a lead screw, and a nut. The drive motor's shaft is coaxially connected to the lead screw, and the nut is threaded onto the lead screw. The inner end of the nut is hinged to the swing arm assembly. The drive motor drives the lead screw to rotate, causing the nut to move relative to the lead screw, which in turn causes the swing arm assembly hinged to the nut to deform, thereby causing the guide wheel to swing.

[0011] The push-pull assembly includes an electric push rod, the inner end of which is hinged to the swing arm assembly. Using the electric push rod as the push-pull component of the swing arm assembly facilitates deformation of the swing arm assembly.

[0012] The swing arm assembly includes a first swing arm, a second swing arm, and a third swing arm. The first and second swing arms are hinged together. The lower part of the first swing arm is hinged to the inner end of the nut and the output end of the electric push rod or cylinder. The upper end of the first swing arm is hinged to the bottom of the horizontal plate of the bracket. The lower end of the second swing arm is hinged to the third swing arm. The upper end of the third swing arm is hinged to the vertical plates on both sides of the bottom of the horizontal plate of the bracket. The lower end of the third swing arm is rotatably connected to the guide wheel. Through the above structure, the push-pull assembly drives the lower part of the first swing arm to swing, thereby driving the second swing arm to swing, which in turn drives the lower end of the third swing arm to rotate around the hinge point of the upper end of the third swing arm, causing the guide wheel at the lower end of the third swing arm to swing. By controlling the swing of the guide wheels on both sides, the distance between the guide wheels on both sides is adjusted so that the guide wheels on both sides abut against the rail.

[0013] The guide wheel abuts against the lower side of the rail head. This structure prevents the guide wheel from interfering with the grinding head's grinding of the top side of the rail head. Attached Figure Description

[0014] Figure 1 This is a structural schematic diagram of an embodiment of this application;

[0015] Figure 2 This is a schematic diagram of the inward swing state of the third swing arm in an embodiment of this application;

[0016] In the diagram: 1. Bracket; 2. Drive motor; 3. Lead screw; 4. Nut; 5. Sleeve; 6. First swing arm; 7. Second swing arm; 8. Third swing arm; 9. Guide wheel; 10. Rail; 11. U-shaped support frame. Detailed Implementation

[0017] The present invention will be further described below with reference to embodiments, the purpose of which is only to better understand the content of the present invention. Therefore, the examples given do not limit the scope of protection of the present invention.

[0018] Reference Figure 1-2 This application discloses an auxiliary guiding device for a rail 10 grinding equipment, which is installed at the bottom of the support 1 of the grinding equipment. The support 1 of the grinding equipment includes a horizontal plate and vertical plates fixed on both sides of the bottom of the horizontal plate. Push-pull components are hinged to both sides of the bottom of the horizontal plate of the support 1. The inner ends of the push-pull components on both sides are hinged to swing arm components. The upper end of each swing arm component is hinged to the bottom of the horizontal plate of the support 1 on the inner side of the adjacent push-pull component. The lower end of the swing arm component is rotatably connected to a guide wheel 9. The swing arm components on both sides swing under the drive of the corresponding push-pull components. The push-pull components are used to drive the swing arm components to deform. The swing arm components are used to drive the guide wheel 9 to swing. The wheel surface of the guide wheel 9 on both sides is used to abut against the rail 10 on both sides. Specifically, the wheel surface of the guide wheel 9 abuts against the lower third position of the side of the rail head of the rail 10, thereby avoiding the guide wheel 9 from affecting the grinding head grinding the top position of the side of the rail head.

[0019] In this embodiment, the push-pull assembly includes a drive motor 2, a lead screw 3, and a nut 4. U-shaped support frames 11 are fixed to both sides of the bottom of the horizontal plate of the grinding equipment bracket 1. The drive motor 2 is hinged in the U-shaped support frame 11, with the rotating shafts of the drive motors 2 facing the center. The rotating shafts of the drive motors 2 are coaxially fixed to the outer end of the lead screw 3. The nut 4 is threaded onto the lead screw 3, and a sleeve 5 is coaxially fixed to the inner end of the nut 4. The inner diameter of the sleeve 5 is larger than the maximum outer diameter of the lead screw 3. The inner end of the sleeve 5 is hinged to the swing arm assembly, and the outer end of the nut 4 is threaded onto the lead screw 3. The drive motor 2 drives the lead screw 3 to rotate, causing the nut 4 to move relative to the lead screw 3, thereby deforming the swing arm assembly and causing the guide wheel 9 to swing. Specifically, the swing arm assembly includes a first swing arm 6, a second swing arm 7, and a third swing arm 8. The upper end of the first swing arm 6 is hinged to the bottom of the horizontal plate of the support 1, the lower end of the first swing arm 6 is hinged to the upper end of the second swing arm 7, the inner end of the sleeve 5 is hinged to the lower half of the first swing arm 6, the lower end of the second swing arm 7 is hinged to the lower half of the third swing arm 8, and the upper end of the third swing arm 8 is hinged to the vertical plate of the grinding equipment support 1. The guide wheel 9 is rotatably sleeved on the bottom end of the third swing arm 8. Through the above structure, the push-pull assembly drives the lower part of the first swing arm 6 to swing, thereby driving the second swing arm 7 to swing, which in turn drives the lower end of the third swing arm 8 to rotate around the hinge point at the upper end of the third swing arm 8, causing the guide wheel 9 at the lower end of the third swing arm 8 to swing. By controlling the swing of the guide wheels 9 on both sides, the distance between the guide wheels 9 on both sides is adjusted so that the guide wheels 9 on both sides abut against the rail 10.

[0020] In one implementation, when the grinding equipment is not turned on, the nuts 4 on both sides are engaged at the outermost end of the lead screw 3, and the other parts of the lead screw 3 are inserted into the sleeve 5. At this time, the first swing arm 6 and the second swing arm 7 are in a parallel state, the third swing arm 8 is in a vertical state, and the axis of the guide wheel 9 is perpendicular to the ground. When the grinding equipment is ready to start running, first observe whether the guide wheels 9 on both sides are abutting against the side of the rail head of the rail 10. If not, control the drive motors 2 on both sides to turn on. The shaft of the drive motor 2 drives the lead screw 3 to rotate, and the nuts 4 on both sides are synchronously engaged. Each lead screw 3 moves inward, and the sleeve 5 drives the lower end of the first swing arm 6 to swing inward. At the same time, the second swing arm 7 gradually becomes horizontal under the drive of the first swing arm 6. Under the drive of the second swing arm 7, the lower end of the third swing arm 8 swings inward, thereby driving the guide wheel 9 to swing inward around the upper hinge point of the third swing arm 8 until the two guide wheels 9 abut against the side of the rail head of the rail 10. Then the grinding equipment can be turned on, and the traveling wheels drive the grinding equipment to travel on the track. The guide wheels 9 on both sides roll on the corresponding rail 10, playing an auxiliary guiding role.

[0021] Embodiment 2 of this application discloses an auxiliary guiding device for a rail grinding equipment. Unlike Embodiment 1, the push-pull assembly uses an electric push rod. The electric push rod is hinged in the U-shaped support frame 11, and the front end of the piston rod of the electric push rod is hinged to the first swing arm 6. By using the electric push rod as a push-pull device for the first swing arm 6, it is easy to drive the swing arm assembly to deform.

[0022] The auxiliary guiding device of this utility model is equipped with a push-pull assembly and a swing arm assembly. The push-pull assembly drives the first swing arm 6, the second swing arm 7, and the third swing arm 8 to swing, thereby causing the guide wheel 9 at the lower end of the third swing arm 8 to swing. In use, by controlling the push-pull assembly, the distance between the guide wheels 9 on both sides can be controlled, so that the guide wheels 9 can keep rolling against the rail 10, thereby helping the grinding equipment to travel along the rail 10 and reducing deviation. At the same time, by adding guide wheels 9, the contact points between the grinding equipment and the rail 10 can be increased, helping the rail 10 to maintain stable travel, and distributing part of the load on the main wheel, reducing the wear of the main wheel and extending the service life of the main wheel.

[0023] The above description is only a preferred embodiment of the present utility model and does not limit the scope of the present utility model. All equivalent changes made based on the content of the present utility model specification and its drawings are included within the scope of the present utility model.

Claims

1. An auxiliary guiding device for rail grinding equipment, installed at the bottom of the support frame of the grinding equipment, characterized in that: Push-pull assemblies are hinged to both sides of the bottom of the support. A swing arm assembly is hinged to the inner end of the push-pull assembly. The upper end of the swing arm assembly is hinged to the bottom of the support. A guide wheel is rotatably connected to the lower end of the swing arm assembly. The push-pull assembly is used to drive the swing arm assembly to deform. The swing arm assembly is used to drive the guide wheel to swing. The guide wheel is used to abut against the rail.

2. The auxiliary guiding device for rail grinding equipment according to claim 1, characterized in that: The push-pull assembly includes a drive motor, a lead screw, and a nut. The shaft of the drive motor is coaxially connected to the lead screw, the nut is threaded onto the lead screw, and the inner end of the nut is hinged to the swing arm assembly.

3. The auxiliary guiding device for rail grinding equipment according to claim 1, characterized in that: The push-pull assembly includes an electric push rod, the inner end of which is hinged to the swing arm assembly.

4. The auxiliary guiding device for rail grinding equipment according to claim 2 or 3, characterized in that: The swing arm assembly includes a first swing arm, a second swing arm, and a third swing arm. The first and second swing arms are hinged together. The lower part of the first swing arm is hinged to the inner end of the nut, the output end of the electric push rod or the cylinder. The upper end of the first swing arm is hinged to the bottom of the horizontal plate of the bracket. The lower end of the second swing arm is hinged to the third swing arm. The upper end of the third swing arm is hinged to the vertical plates on both sides of the bottom of the horizontal plate of the bracket. The lower end of the third swing arm is rotatably connected to the guide wheel.

5. The auxiliary guiding device for rail grinding equipment according to claim 1, characterized in that: The guide wheel abuts against the lower side of the rail head.

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