A wheel flange fitting rail mechanism

Abstract

The utility model relates to railway rail measurement auxiliary frock technical field more specifically, more specifically, relate to a kind of wheel rim adhering rail mechanism. It is released the resilience of elastic element by pulling out the locking pin in locking hole, under the impetus of elastic element, guiding shaft drives wheel seat and measuring wheel to slide, until measuring wheel stablely touches the inside of rail, to realize that measuring wheel rim closely adheres rail. The utility model is not influenced by work environment, equipment cost is low, applicability is extensive, and only need not air source mechanical structure can be detected, realize detection equipment miniaturization, convenient.

Description

Technical Field

[0001] This utility model relates to the field of auxiliary tooling technology for railway rail measurement, and more specifically, to a wheel flange fitting mechanism for rails. Background Technology

[0002] In the field of railway rail inspection, it is necessary to regularly check its geometric parameters. In existing technologies, the deviation of the lateral position of the rail is mainly measured by a measuring trolley. During measurement, a cylinder-driven contact mechanism is installed on the measuring trolley, and the measuring wheel is supported by the cylinder to contact the rail in both the lateral and longitudinal directions. This method relies on a compressed air source and usually requires a pneumatic system. Therefore, it is generally integrated into large track maintenance machinery or comprehensive inspection trains with sufficient energy supply, making it difficult to promote its application in miniaturized and portable inspection equipment.

[0003] In summary, existing technologies have significant disadvantages in terms of adaptability, cost, and convenience. Therefore, there is an urgent need for a flange-fitting rail mechanism that can ensure measurement reliability, does not rely on complex external conditions, and has cost advantages. Summary of the Invention

[0004] The purpose of this invention is to address the problems existing in the prior art by providing a wheel flange fitting mechanism for the rail. This invention releases the elastic force of the elastic element by pulling out the locking pin in the locking hole. Under the push of the elastic element, the guide shaft drives the wheel seat and the measuring wheel to slide until the measuring wheel stably contacts the inner side of the rail, thereby achieving a tight fit between the wheel flange and the rail. This invention is unaffected by the working environment, has low equipment cost, wide applicability, and can perform detection using only a mechanical structure that does not require an air source, thus achieving miniaturization and convenience of the detection equipment.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] A wheel flange fitting mechanism for rails includes a guide shaft, one end of which is a journal, a wheel seat is fixedly connected to the journal, and a measuring wheel is mounted on the wheel seat; a locking hole is formed in the middle of the guide shaft, and a locking pin is detachably installed in the locking hole; a limiting seat is fixedly connected to the journal, and a mounting seat is slidably connected to the outer wall of the middle part of the guide shaft; the mounting seat and the journal are connected by an elastic element that provides tension, and the elastic element is sleeved on the outer circumference of the guide shaft.

[0007] Furthermore, the guide shaft is an irregularly shaped shaft, and the mounting base has a through inner hole that matches the shape of the guide shaft. The guide shaft slides with the mounting base through the inner hole.

[0008] Furthermore, the wheel seat has a shape that is open at the bottom and closed at the top. A through mounting hole is provided at the lower opening of the wheel seat, and the measuring wheel is mounted on the wheel seat through the mounting hole. The guide shaft is fixed to the closed part of the top of the wheel seat.

[0009] Furthermore, the upper closed portion of the wheel seat is provided with a clearance space, the height of which matches the height of the limiting seat.

[0010] Furthermore, the position of the locking hole matches the mounting base, and the distance between the locking hole and the journal is greater than the length of the mounting base plus the clamping length of the elastic element, so that the mounting base slides along the guide shaft until the locking hole is exposed to achieve limiting.

[0011] Furthermore, the locking hole is exposed on the side of the mounting base away from the elastic element.

[0012] Furthermore, the measuring wheel includes a wheel body and a flange, the wheel body is fixed to the flange, the diameter of the flange is larger than the diameter of the wheel body, the cylindrical surface of the wheel body abuts against the top working surface of the rail, and the side surface of the flange abuts against the inner working surface of the rail.

[0013] Furthermore, the inner working surface of the rail is the side of the rail to be tested near another parallel rail, and the shape of the measuring wheel matches the shape of the rail so that the measuring wheel fits the rail.

[0014] Furthermore, the elastic element includes one of a compression spring and a rubber elastic element.

[0015] Furthermore, a handle is fixed to the side of the wheel seat away from the mounting base, and the wheel seat is pushed in a direction that overcomes the elastic force of the elastic element through the handle.

[0016] Furthermore, the mounting base has several oblong holes, through which it is fixed to the base, in order to provide stable support while keeping the guide shaft parallel to the rail.

[0017] Furthermore, the waist-shaped hole is a straight slot, and the waist-shaped hole is fixed to the base by bolts, providing the bolt with a vertical travel range.

[0018] Furthermore, a stop hole is provided at the end of the guide shaft away from the journal, and a stop pin can be detachably installed in the stop hole.

[0019] Compared with the prior art, the beneficial effects of this utility model are:

[0020] This invention releases the elastic force of the elastic element by pulling out the locking pin in the locking hole. Under the push of the elastic element, the guide shaft drives the wheel seat and the measuring wheel to slide until the measuring wheel stably contacts the inner side of the rail, thereby achieving a tight fit between the flange of the measuring wheel and the rail. This invention is not affected by the working environment, has low equipment cost, wide applicability, and can perform detection using only a mechanical structure that does not require an air source, thus achieving miniaturization and convenience of the detection equipment. Attached Figure Description

[0021] Figure 1 This is a three-dimensional structural view of the present invention;

[0022] Figure 2 This is a three-dimensional structural view of the guide shaft of this utility model;

[0023] Figure 3 This is a three-dimensional structural view of the wheel seat and guide shaft of this utility model;

[0024] Figure 4 This is a schematic diagram of the installation of this utility model.

[0025] In the diagram: 1. Stop pin; 2. Mounting base; 21. Waist-shaped hole; 3. Compression spring; 4. Wheel seat; 41. Guide shaft; 411. Journal; 412. Stop hole; 413. Locking hole; 42. Mounting hole; 5. Measuring wheel; 6. Handle; 7. Rail. Detailed Implementation

[0026] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0027] In the description of this utility model, it should be noted that the terms "middle", "upper", "lower", "left", "right", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0028] Example 1:

[0029] Please see Figure 1-4A wheel flange fitting mechanism for rails includes a guide shaft 41, one end of which is a journal 411. The journal 411 is fixedly connected to a wheel seat 4, and a measuring wheel 5 is mounted on the wheel seat. A locking hole 413 is opened in the middle of the guide shaft 41, and a locking pin can be detachably installed in the locking hole 413. A limiting seat is fixedly connected to the journal 411, and a mounting seat 2 is slidably connected to the outer wall of the middle part of the guide shaft 41. The mounting seat 2 and the journal 411 are connected by an elastic element that provides tension, and the elastic element is sleeved on the guide shaft 41.

[0030] The elastic element includes either a compression spring 3 or a rubber elastic element. Specifically, in this embodiment, the elastic element is a compression spring 3. During actual operation, the mounting base 2 is in a fixed position.

[0031] In the initial state, the locking pin is inserted into the locking hole 413. The locking pin abuts against the end of the mounting base 2 away from the compression spring 3, thereby limiting the mounting base 2 and the compression spring 3, and the measuring wheel 5 moves away from the rail 7.

[0032] It should be noted that the initial state described above is as follows: the mounting base 2 is fixed to the main body of the testing equipment, the spatial position of the mounting base 2 remains constant, and the wheel seat 4, guide shaft 41, and measuring wheel 5 are in a state where they overcome the rebound force of the compression spring 3 under the limiting action of the locking pin. At this time, the compression spring 3 is shortened, that is, the length from the mounting base 2 to the wheel seat 4 is shortened, so that the measuring wheel 5 is kept away from the extreme position of the rail 7.

[0033] When starting the operation, pull out the locking pin in the locking hole 413 to release the rebound force of the compression spring 3; under the push of the compression spring 3, the guide shaft 41 drives the wheel seat 4 and the measuring wheel 5 to slide until the measuring wheel 5 stably abuts against the inner side of the rail 7.

[0034] When operation stops, push the wheel seat 4 in the direction that overcomes the spring force. The guide shaft 41 moves away from the rail 7, further compressing the compression spring 3 located between the mounting base 2 and the journal 411. When pushed to the designated position, i.e., when the locking hole 413 is exposed on the side of the mounting base 2 away from the rail 7, insert the locking pin into the locking hole 413. Release the handle 6. At this time, the rebound force of the compression spring 3 attempts to push the guide shaft 41 closer to the rail 7, but this force is blocked by the locking pin, so that the guide shaft 41, the mounting base 2, and the wheel seat 4 are limited, and the measuring wheel 5 remains in the retracted position, disengaging from the rail 7.

[0035] The guide shaft 41 is an irregularly shaped shaft, and the mounting base 2 has a through inner hole. The inner hole of the mounting base 2 matches the shape of the guide shaft 41, and the guide shaft 41 slides with the mounting base 2 through the inner hole.

[0036] By using a non-circular cross-section as the guide shaft 41, the rotational freedom of the guide shaft 41 is restricted, preventing the guide shaft 41 from rotating in the inner hole of the mounting base 2, thereby achieving the purpose of stopping rotation.

[0037] The wheel seat 4 is open at the bottom and closed at the top. A through mounting hole 42 is provided at the bottom opening of the wheel seat 4. The measuring wheel 5 is mounted on the wheel seat 4 through the mounting hole 42. The guide shaft 41 is fixedly connected to the closed top of the wheel seat 4.

[0038] The upper part of the wheel seat 4 is chamfered, and a clearance space is provided at the chamfer. The height of the clearance space matches the height of the limit seat, so that there is enough space to install the limit seat, so that the wheel seat 4, guide shaft 41, limit seat and compression spring 3 are installed in a compact structure.

[0039] The position of the locking hole 413 matches the mounting base 2. The distance between the locking hole 413 and the journal 411 is greater than the length of the mounting base 2 plus the clamping length of the elastic element, so that the mounting base 2 slides along the guide shaft 41 until the locking hole 413 is exposed to achieve the limit.

[0040] Specifically, the locking hole 413 is exposed on the side of the mounting base 2 away from the compression spring 3.

[0041] The shape of the measuring wheel 5 matches the shape of the rail 7. The measuring wheel 5 includes a wheel body and a flange. The wheel body is fixed to the flange. The diameter of the flange is larger than the diameter of the wheel body. The cylindrical surface of the wheel body abuts against the top working surface of the rail 7, and the side surface of the flange abuts against the inner working surface of the rail 7.

[0042] It should be noted that the rail consists of two steel rails 7 laid parallel at a fixed distance, connected and fixed by sleepers, fasteners, ballast, etc., to form a track. The mechanism provided by this utility model is used for the detection of steel rails 7. The cylindrical surface of the measuring wheel 5 abuts against the top working surface of the steel rail 7, and the flange side of the measuring wheel 5 abuts against the inner working surface of the steel rail 7. The inner working surface of the steel rail 7 is the side of the steel rail to be tested that is close to the other parallel steel rail.

[0043] A handle 6 is fixed to the side of the wheel seat 4 away from the mounting base 2 so that, in use, the wheel seat 4 can be pushed in the direction that overcomes the spring force by the handle 6.

[0044] A stop hole 412 is provided at the end of the guide shaft 41 away from the journal 411, and a stop pin 1 can be detachably installed in the stop hole 412.

[0045] By installing the stop pin 1 in the stop hole 412, the mounting seat 2 is prevented from falling off the side of the guide shaft 41 away from the wheel seat 4 when not in actual operation, i.e. when the mounting seat 2 is not fixed.

[0046] This invention releases the rebound force of the compression spring 3 by pulling out the locking pin in the locking hole 413. Under the push of the compression spring 3, the guide shaft 41 drives the wheel seat 4 and the measuring wheel 5 to slide until the measuring wheel 5 stably contacts the inner side of the rail 7, thereby achieving a tight fit between the flange of the measuring wheel 5 and the rail 7. This invention is not affected by the working environment, has low equipment cost, wide applicability, and can perform detection with only a mechanical structure that does not require an air source, realizing the miniaturization and convenience of the detection equipment.

[0047] Example 2:

[0048] Please see Figure 1-4 According to Embodiment 1, a flange-fitting rail mechanism is provided, wherein a number of waist-shaped holes 21 are provided on the mounting base 2, and the mounting base 2 is fixed to the base through the waist-shaped holes 21.

[0049] Specifically, the base is mounted on the track inspection vehicle (not shown in the figure), and the mounting seat 2 is mounted on the base to provide stable support while keeping the guide shaft parallel to the rail.

[0050] The oblong hole 21 is a straight slot. The oblong hole 21 is fixed to the base by bolts. The oblong hole 21 provides the bolt with a vertical travel stroke.

[0051] During operation, the mounting base 2 is fixedly installed on the base through the waist-shaped hole 21 to ensure that the spatial position of the mounting base 2 remains constant. The locking pin in the locking hole 413 is pulled out to release the rebound force of the compression spring 3. Under the push of the compression spring 3, the guide shaft 41 drives the wheel seat 4 and the measuring wheel 5 to slide until the measuring wheel 5 is close to the inner side of the rail 7. At this time, the data is collected and measured by the detection element installed on the rail inspection vehicle.

[0052] In actual operation, the top surface of the rail will wear down continuously during use, causing changes in height. The position of the mounting base 2 can be adjusted up and down through the slotted hole 21 to ensure that the measuring wheel 5 is always in the optimal measuring position. Furthermore, in actual use, if this invention is installed on different equipment or vehicles, the height of the mounting base may be inconsistent. The adjustable height design greatly increases the versatility and adaptability of this invention.

Claims

1. A flange-fitting rail mechanism, characterized in that: The device includes a guide shaft, one end of which is a journal, and a wheel seat is fixedly connected to the journal. A measuring wheel is mounted on the wheel seat. A locking hole is formed in the middle of the guide shaft, and a locking pin can be detachably installed in the locking hole. A limiting seat is fixedly connected to the journal, and a mounting seat is slidably connected to the outer wall of the middle part of the guide shaft. The mounting seat and the journal are connected by an elastic element that provides tension, and the elastic element is sleeved on the outer circumference of the guide shaft.

2. The flange-fitting rail mechanism according to claim 1, characterized in that: The guide shaft is an irregularly shaped shaft, and the mounting base has a through inner hole that matches the shape of the guide shaft. The guide shaft slides with the mounting base through the inner hole.

3. The flange-fitting rail mechanism according to claim 1, characterized in that: The wheel seat is open at the bottom and closed at the top. A through mounting hole is provided at the bottom opening of the wheel seat. The measuring wheel is mounted on the wheel seat through the mounting hole. The guide shaft is fixed to the closed top of the wheel seat.

4. The flange-fitting rail mechanism according to claim 3, characterized in that: The upper closed portion of the wheel seat is provided with a clearance space, the height of which matches the height of the limiting seat.

5. The flange-fitting rail mechanism according to claim 1, characterized in that: The locking hole is positioned to match the mounting base, and the distance between the locking hole and the journal is greater than the length of the mounting base plus the clamping length of the elastic element.

6. The flange-fitting rail mechanism according to claim 1, characterized in that: The measuring wheel includes a wheel body and a flange. The wheel body is fixed to the flange. The diameter of the flange is larger than the diameter of the wheel body. The cylindrical surface of the wheel body abuts against the top working surface of the rail, and the side surface of the flange abuts against the inner working surface of the rail.

7. The flange-fitting rail mechanism according to claim 1, characterized in that: The elastic element includes one of a compression spring and a rubber elastic element.

8. The flange-fitting rail mechanism according to claim 1, characterized in that: The handle is fixed to the side of the wheel seat away from the mounting base.

9. A flange-fitting rail mechanism according to claim 1, characterized in that: The mounting base has several oblong holes, which are used to fix the mounting base to the base. The oblong holes are straight slots, and the oblong holes are fixed to the base by bolts. The oblong holes provide the bolts with a vertical travel range.

10. A flange-fitting rail mechanism according to claim 1, characterized in that: A stop hole is provided at one end of the guide shaft away from the journal, and a stop pin can be detachably installed in the stop hole.

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