Horizontal wheel device for small rail car

Abstract

The utility model belongs to the technical field of small rail cars, and particularly relates to a horizontal wheel device for a small rail car, which comprises a car base, wheels are fixedly mounted at four corners of the bottom of the car base, first mounting grooves are formed in the periphery of the car base, and two second mounting grooves which are symmetrically distributed are formed in the periphery of the car base. The first mounting groove is located between the two second mounting grooves; the four mounting blocks are movably inserted into the first mounting grooves; the four fixing assemblies are arranged in the first mounting groove and the second mounting groove and used for fixing the four mounting blocks; and the four moving assemblies are arranged outside the trolley base and used for driving the four fixing assemblies to move, through the arranged structure, the horizontal wheel body can be rapidly disassembled and assembled, the maintenance time is greatly shortened, the use efficiency of the trolley is improved, and then workers can use the trolley conveniently.

Description

Technical Field

[0001] This utility model belongs to the field of track vehicle technology, and in particular relates to a horizontal wheel device for track vehicles. Background Technology

[0002] The horizontal wheels of the track trolley are key components for the operation of the track trolley. They support the trolley body and ensure that the trolley travels smoothly on the track. Through their precise design and wear-resistant materials, they guarantee the stability and reliability of the trolley's operation.

[0003] For example, Chinese patent CN220976327U discloses a horizontal wheel device, including a horizontal wheel bracket. A mounting block is horizontally positioned at the bottom inner side of the bracket, and the mounting block is fitted with two vertically positioned axles. A horizontal wheel is sleeved on the lower part of each axle via a bearing. A nut is threaded onto the upper end of each axle, and a baffle is welded to the lower end. The upper part of the vertical plate of the horizontal wheel bracket has four horizontally positioned oblong holes. The horizontal wheel bracket is connected and fixed to the trolley end beam by fasteners passing through the oblong holes. A positioning block is also provided on the side of the vertical plate of the horizontal wheel bracket, and the positioning block engages with the positioning holes of the trolley end beam. This utility model has a simple structure, is easy to manufacture, and has significant effects, solving the problem of horizontal wheel slippage caused by fastening force failure, preventing horizontal wheel failure, and avoiding horizontal wheel detachment.

[0004] The above-mentioned patent has the following problems: In actual use, it does not have the function of quick disassembly and assembly of the horizontal wheels. When the horizontal wheels need to be replaced or repaired, the inability to quickly disassemble and assemble them will greatly increase the difficulty and time consumption of maintenance work, resulting in the trolley being unable to be put into use for a long time, affecting production progress and operational efficiency. In view of this, we propose a horizontal wheel device for a track trolley. Utility Model Content

[0005] The purpose of this invention is to provide a horizontal wheel device for a track trolley to solve the problems mentioned in the background art.

[0006] In view of this, the present invention provides a horizontal wheel device for a track trolley, including a trolley base, characterized in that wheels are fixedly installed at the four corners of the bottom of the trolley base, a first mounting groove is provided around the trolley base, and two symmetrically distributed second mounting grooves are provided around the trolley base, with the first mounting groove located between the two second mounting grooves.

[0007] Four mounting blocks are movably inserted into the first mounting slot. A housing is fixedly connected to one side of each of the four mounting blocks. An offset shaft is rotatably mounted inside each of the four housings. Two symmetrically distributed bearings are provided on the outside of each of the four offset shafts. A horizontal wheel body is provided between the two bearings.

[0008] Four sets of fixing components are all located inside the trolley base and are used to fix the four mounting blocks.

[0009] Four sets of moving components, all of which are located outside the trolley base and are used to move the four sets of fixed components.

[0010] In this technical solution, the handle is first rotated, which in turn rotates the threaded rod. The rotation of the threaded rod moves the threaded sleeve, connecting plate, sliding rod, and first conical block. At this point, the first conical block disengages from the second conical block, and the second conical block and insert rod, under the spring's return force, move away from the first insertion hole on the mounting block. The operator can then remove the horizontal wheel body from the trolley base. By reversing the handle, the horizontal wheel body can be fixed back onto the trolley base. This structure allows for quick assembly and disassembly of the horizontal wheel body. This quick-assembly design allows maintenance personnel to quickly and easily remove damaged wheels and install new ones, significantly reducing maintenance time. This not only reduces trolley downtime but also ensures the trolley can quickly return to normal operation, improving its efficiency and facilitating operation.

[0011] By setting an offset shaft, the horizontal wheels can more effectively resist tipping or deflection when subjected to lateral forces. It also makes the trolley more flexible when turning. Due to the relative offset position of the horizontal wheel body, the trolley can better adapt to the curvature changes of the track when turning, reducing resistance and wear during turning, and improving the smoothness and accuracy of turning. The dual-bearing design reduces the swaying and wobble of the horizontal wheel body during operation. The two bearings support each other, making the movement of the horizontal wheel body more stable, improving the stability of the track trolley, and thus facilitating the use of the staff.

[0012] In the above technical solution, the fixing component further includes two sliding holes, both of which are opened on one side of the trolley base and extend into the interior of the second mounting groove. A sliding rod is slidably installed inside each of the two sliding holes, one end of each sliding rod extends into the interior of the second mounting groove, and a first conical block is fixedly connected to one end of each sliding rod. Insert rods are provided inside each of the two second mounting grooves, and a second conical block is fixedly connected to one end of each insert rod. The first conical block and the second conical block are adapted to each other.

[0013] In this technical solution, the first conical block will detach from the second conical block, and the second conical block and the insert rod will move away from the first insertion hole on the mounting block under the action of spring rebound. At this time, the worker can remove the horizontal wheel body from the trolley base.

[0014] In the above technical solution, a second insertion hole is provided between the first mounting groove and the second mounting groove, and a first insertion hole is provided on the top of each of the four mounting blocks. The insertion rod is movably inserted into the interior of the first insertion hole and the second insertion hole.

[0015] In this technical solution, the mounting block can be fixed by inserting the plug rod into the inside of the first and second sockets.

[0016] In the above technical solution, furthermore, each of the four second conical blocks is provided with a spring at its bottom, and the bottom of each of the four springs is fixedly connected to one side of the inner wall of the first mounting groove, and the spring is sleeved on the outside of the insertion rod.

[0017] In this technical solution, the spring is designed so that the insertion rod can be reset when the first conical block and the second conical block are not in contact.

[0018] In the above technical solution, the moving component further includes a fixed frame, which is fixedly connected to one side of the trolley base. A threaded rod is rotatably mounted on one side of the fixed frame, and the other side of the threaded rod is rotatably connected to the outside of the trolley base. A threaded sleeve is threadedly connected to the outside of the threaded rod.

[0019] In this technical solution, the threaded rod rotates, which in turn drives the threaded sleeve, connecting plate, sliding rod and first conical block to move.

[0020] In the above technical solution, furthermore, the top and bottom of the threaded sleeve are fixedly connected to connecting plates, and the outside of the two connecting plates are respectively fixedly connected to one end of two corresponding sliding rods.

[0021] In this technical solution, the sliding rod can be moved by the connecting plate.

[0022] In the above technical solution, furthermore, one end of each of the four threaded rods is fixedly connected to a handle, and the handle is made of rubber.

[0023] In this technical solution, the use of a rubber grip improves the comfort of the staff when holding the grip.

[0024] The beneficial effects of this utility model are:

[0025] 1. First, grasp the handle and rotate it, which will then drive the threaded rod to rotate. The rotation of the threaded rod will move the threaded sleeve, connecting plate, sliding rod, and first conical block. At this point, the first conical block will disengage from the second conical block. The second conical block and the insert rod will then move away from the first insertion hole on the mounting block under the spring's return force. The operator can then remove the horizontal wheel body from the trolley base. By reversing the handle, the horizontal wheel body can be fixed back onto the trolley base. This structure allows for quick disassembly and assembly of the horizontal wheel body. This quick-assembly design allows maintenance personnel to quickly and easily remove damaged wheels and install new ones, significantly reducing maintenance time. This not only reduces trolley downtime but also ensures the trolley can quickly return to normal operation, improving its efficiency and facilitating operation.

[0026] 2. By setting an offset shaft, the horizontal wheel can more effectively resist tipping or deviation when subjected to lateral forces. It also makes the trolley more flexible when turning. Due to the relative offset position of the horizontal wheel body, the trolley can better adapt to the curvature changes of the track when turning, reducing resistance and wear during turning, and improving the smoothness and accuracy of turning. The dual-bearing design reduces the swaying and wobble of the horizontal wheel body during operation. The two bearings support each other, making the movement of the horizontal wheel body more stable, improving the stability of the track trolley, and thus facilitating the use by the staff. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0028] Figure 2 This is a partial cross-sectional view of the trolley base structure in this utility model;

[0029] Figure 3 This is a schematic diagram of the structure of the moving component and the fixed component in this utility model;

[0030] Figure 4 This is a schematic diagram of the structure of the moving component in this utility model;

[0031] Figure 5 This is a schematic diagram of the trolley base structure in this utility model;

[0032] Figure 6 This utility model Figure 1 Enlarged structural diagram at point A in the middle.

[0033] The markings in the diagram are as follows:

[0034] 1. Cart base; 2. Wheel; 3. First mounting slot; 4. Mounting block; 5. Housing; 6. Offset shaft; 7. Bearing; 8. Horizontal wheel body; 9. First insertion hole; 10. Second mounting slot; 11. Second insertion hole; 12. Sliding hole; 13. Fixing bracket; 14. Threaded rod; 15. Handle; 16. Threaded sleeve; 17. Connecting plate; 18. Sliding rod; 19. First conical block; 20. Second conical block; 21. Insert rod; 22. Spring. Detailed Implementation

[0035] The technical solutions of the embodiments of this application will be clearly described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application are within the scope of protection of this application.

[0036] In the description of this application, it should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. For ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings denote similar items; therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.

[0037] It should be noted that the terms "first," "second," etc., used in the specification and claims of this application are used to distinguish similar objects and not to describe a specific order or sequence. It should be understood that such use of data can be interchanged where appropriate so that embodiments of this application can be implemented in orders other than those illustrated or described herein, and the objects distinguished by "first," "second," etc., are generally of the same class and are not limited in number; for example, a first object can be one or more. Furthermore, in the specification and claims, "and / or" indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0038] It should be noted that in the description of this application, the directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" 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 application and simplifying the description. Unless otherwise stated, these directional terms 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, and therefore should not be construed as a limitation on the scope of protection of this application. The directional terms "inner" and "outer" refer to the inner and outer contours relative to the outline of each component itself.

[0039] It should be noted that, in this application, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element. Furthermore, it should be noted that the scope of the methods and apparatuses in the embodiments of this application is not limited to performing functions in the order shown or discussed, but may also include performing functions substantially simultaneously or in the reverse order, depending on the functions involved. For example, the described methods may be performed in a different order than described, and various steps may be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples. Example

[0040] Please see Figure 1 - Figure 6 As shown, this embodiment provides a horizontal wheel device for a track trolley, including a trolley base 1, wheels 2 fixedly installed at the four corners of the bottom of the trolley base 1, a first mounting groove 3 is provided around the trolley base 1, and two symmetrically distributed second mounting grooves 10 are provided around the trolley base 1, with the first mounting groove 3 located between the two second mounting grooves 10.

[0041] Four mounting blocks 4 are movably inserted into the first mounting groove 3. A housing 5 is fixedly connected to one side of each of the four mounting blocks 4. An offset shaft 6 is rotatably installed inside the four housings 5. Two symmetrically distributed bearings 7 are provided on the outside of each of the four offset shafts 6. A horizontal wheel body 8 is provided between the two bearings 7.

[0042] Four sets of fixing components are all located inside the first mounting slot 3 and the second mounting slot 10, and are used to fix the four mounting blocks 4.

[0043] Four sets of moving components are set outside the trolley base 1 and are used to drive the four sets of fixed components to move.

[0044] First, the handle 15 is gripped and rotated, which in turn rotates the threaded rod 14. The rotation of the threaded rod 14 moves the threaded sleeve 16, connecting plate 17, sliding rod 18, and first conical block 19. At this point, the first conical block 19 disengages from the second conical block 20. The second conical block 20 and insert rod 21, under the rebound of spring 22, move away from the first insertion hole 9 on mounting block 4. The operator can then remove the horizontal wheel body 8 from the trolley base 1. By reversing the handle 15, the horizontal wheel body 8 can be fixed back onto the trolley base 1. This structure allows for quick disassembly and assembly of the horizontal wheel body 8. This quick disassembly design allows maintenance personnel to quickly and easily remove damaged wheels and install new ones, significantly shortening maintenance time. This not only reduces trolley downtime but also ensures the trolley can quickly return to normal operation, improving its efficiency and facilitating operation.

[0045] By setting the offset shaft 6, the horizontal wheel can more effectively resist tipping or deviation when subjected to lateral force, and the trolley can be more flexible when turning. Due to the relative offset position of the horizontal wheel body 8, the trolley can better adapt to the curvature change of the track when turning, reducing resistance and wear during turning, and improving the smoothness and accuracy of turning. The two bearings 7 reduce the swaying and wobble of the horizontal wheel body 8 during operation. The two bearings 7 support each other, making the movement of the horizontal wheel body 8 more stable, improving the stability of the track trolley, and thus facilitating the use of the staff. Example

[0046] This embodiment provides a horizontal wheel device for a track trolley. In addition to the technical solution of the above embodiment, it also has the following technical features: the fixing component includes two sliding holes 12, which are respectively opened on one side of the trolley base 1. The two sliding holes 12 penetrate into the interior of the second mounting groove 10. Sliding rods 18 are slidably installed inside the two sliding holes 12. One end of the two sliding rods 18 extends into the interior of the second mounting groove 10. A first conical block 19 is fixedly connected to one end of the two sliding rods 18. Insert rods 21 are provided inside the two second mounting grooves 10. A second conical block 20 is fixedly connected to one end of the two insert rods 21. The first conical block 19 and the second conical block 20 are adapted to each other.

[0047] In this process, the first conical block 19 will detach from the second conical block 20, and the second conical block 20 and the insertion rod 21 will move away from the first insertion hole 9 on the mounting block 4 under the action of the spring 22. At this time, the staff can remove the horizontal wheel body 8 from the trolley base 1. Example

[0048] This embodiment provides a horizontal wheel device for a track trolley. In addition to the technical solution of the above embodiment, it also has the following technical features: a second insertion hole 11 is provided between the first mounting groove 3 and the second mounting groove 10; a first insertion hole 9 is provided on the top of the four mounting blocks 4; and the insertion rod 21 is movably inserted into the interior of the first insertion hole 9 and the second insertion hole 11.

[0049] The mounting block 4 can be fixed by inserting the plug 21 into the first socket 9 and the second socket 11. Example

[0050] This embodiment provides a horizontal wheel device for a track trolley. In addition to the technical solution of the above embodiment, it also has the following technical features: the bottom of each of the four second conical blocks 20 is provided with a spring 22, the bottom of each of the four springs 22 is fixedly connected to one side of the inner wall of the first mounting groove 3, and the spring 22 is sleeved on the outside of the insert rod 21.

[0051] The spring 22 allows the insertion rod 21 to reset when the first conical block 19 and the second conical block 20 are not in contact. Example

[0052] This embodiment provides a horizontal wheel device for a track trolley. In addition to the technical solutions of the above embodiments, it also has the following technical features: the moving component includes a fixed frame 13, which is fixedly connected to one side of the trolley base 1. A threaded rod 14 is rotatably mounted on one side of the fixed frame 13, and the other side of the threaded rod 14 is rotatably connected to the outside of the trolley base 1. A threaded sleeve 16 is threadedly connected to the outside of the threaded rod 14.

[0053] The rotation of the threaded rod 14 can drive the threaded sleeve 16, the connecting plate 17, the slide rod 18 and the first conical block 19 to move. Example

[0054] This embodiment provides a horizontal wheel device for a track trolley. In addition to the technical solution of the above embodiment, it also has the following technical features: the top and bottom of the threaded sleeve 16 are fixedly connected to the connecting plate 17, and the outside of the two connecting plates 17 are respectively fixedly connected to one end of the two corresponding slide rods 18.

[0055] The sliding rod 18 can be moved by the connecting plate 17. Example

[0056] This embodiment provides a horizontal wheel device for a track trolley. In addition to the technical solution of the above embodiment, it also has the following technical features: one end of each of the four threaded rods 14 is fixedly connected to a handle 15, and the handle 15 is made of rubber.

[0057] The rubber grip 15 improves the comfort of staff when holding it.

[0058] Working Principle: When the horizontal wheel body 8 needs to be disassembled and repaired, first grasp the handle 15 and rotate it, which will then drive the threaded rod 14 to rotate. The rotation of the threaded rod 14 will move the threaded sleeve 16, connecting plate 17, sliding rod 18, and first conical block 19. At this time, the first conical block 19 will disengage from the second conical block 20. The second conical block 20 and the insertion rod 21 will move away from the first insertion hole 9 on the mounting block 4 under the action of the spring 22. Then, the operator can remove the horizontal wheel body 8 from the trolley base 1. By reversing the handle 15, the horizontal wheel body 8 can be fixed to the trolley base 1. This structure allows for quick disassembly and assembly of the horizontal wheel body 8. The quick disassembly design allows maintenance personnel to quickly and easily remove damaged wheels and install new wheels, greatly shortening maintenance time. This not only reduces trolley downtime but also ensures that the trolley can quickly return to normal working condition, improving the trolley's efficiency and facilitating operation.

[0059] By setting the offset shaft 6, the horizontal wheel can more effectively resist tipping or deviation when subjected to lateral force, and the trolley can be more flexible when turning. Due to the relative offset position of the horizontal wheel body 8, the trolley can better adapt to the curvature change of the track when turning, reducing resistance and wear during turning, and improving the smoothness and accuracy of turning. The two bearings 7 reduce the swaying and wobble of the horizontal wheel body 8 during operation. The two bearings 7 support each other, making the movement of the horizontal wheel body 8 more stable, improving the stability of the track trolley, and thus facilitating the use of the staff.

[0060] The embodiments of this application have been described above with reference to the accompanying drawings. Unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other. This application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of this application without departing from the spirit and scope of the claims, and all of these forms are within the protection scope of this application.

Claims

1. A horizontal wheel device for a rail trolley, comprising a trolley base (1), characterized in that, The bottom of the trolley base (1) is fixedly provided with wheels (2) at four corners, first installation grooves (3) are formed around the trolley base (1), two second installation grooves (10) are symmetrically formed around the trolley base (1), and the first installation grooves (3) are located between the two second installation grooves (10); Four installation blocks (4) are movably inserted into the first installation grooves (3), four housings (5) are fixedly connected to one side of the installation blocks (4), four bias shafts (6) are rotatably installed in the housings (5), two bearings (7) are symmetrically arranged on the outer sides of the bias shafts (6), and one horizontal wheel body (8) is arranged between the two bearings (7). Four sets of fixing assemblies are arranged in the trolley base (1) and used for fixing the four installation blocks (4). Four sets of moving assemblies are arranged outside the trolley base (1) and used for moving the four sets of fixing assemblies.

2. The horizontal wheel device for a rail trolley according to claim 1, wherein The fixing assembly comprises two sliding holes (12) formed on one side of the trolley base (1), the two sliding holes (12) penetrate into the second installation grooves (10), sliding rods (18) are slidably installed in the two sliding holes (12), the sliding rods (18) extend into the second installation grooves (10), first tapered blocks (19) are fixedly connected to one end of the sliding rods (18), second tapered blocks (20) are fixedly connected to one end of two insertion rods (21) arranged in the second installation grooves (10), and the first tapered blocks (19) are matched with the second tapered blocks (20).

3. The horizontal wheel device for a rail trolley according to claim 2, characterized by The first installation grooves (3) and the second installation grooves (10) are provided with second insertion holes (11), the top of the installation blocks (4) is provided with first insertion holes (9), and the insertion rods (21) are movably inserted into the first insertion holes (9) and the second insertion holes (11).

4. The horizontal wheel device for a rail trolley according to claim 3, wherein The bottom of the second tapered block (20) is provided with a spring (22), the bottom of the spring (22) is fixedly connected to one side of the inner wall of the first installation groove (3), and the spring (22) is sleeved on the outside of the insertion rod (21).

5. The horizontal wheel device for a rail trolley according to claim 4, wherein The moving assembly comprises a fixing frame (13) fixedly connected to one side of the trolley base (1), a threaded rod (14) rotatably installed on one side of the fixing frame (13), the other side of the threaded rod (14) rotatably connected to the outside of the trolley base (1), and a threaded sleeve (16) threadedly connected to the outside of the threaded rod (14).

6. The horizontal wheel device for a rail trolley according to claim 5, wherein The top and bottom of the threaded sleeve (16) are fixedly connected with connecting plates (17), and the outer sides of the two connecting plates (17) are fixedly connected with one end of the two corresponding sliding rods (18).

7. The horizontal wheel device for a rail trolley according to claim 6, wherein One end of the threaded rod (14) is fixedly connected with a handle (15), and the handle (15) is made of rubber material.

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