Device for preventing travelling wheels of cart of coal sampling machine from derailing

Abstract

The invention discloses a device for preventing travelling wheels of a cart of an incoming coal sampling machine from derailing. The device comprises a fixed plate arranged on the sampling machine, a chassis assembly arranged on the fixed plate, a limiting shaft assembly arranged on the chassis assembly and a limiting disc assembly rotationally arranged on the limiting shaft assembly. According to the device for preventing the traveling wheels of the cart of the coal sampling machine from derailing, the fixing plate, the chassis assembly, the limiting shaft assembly and the limiting disc assembly are arranged, the fixing plate is installed on the sampling machine, rolling friction is conducted between the limiting disc assembly and a rail, the height of the bottom face of the sampling machine is increased through the height of an anti-falling unit in the vertical direction, and therefore the sampling machine is prevented from falling off. Further, the sampling machine is effectively prevented from being easily separated from the track or inclining when bumping due to external force; and the derailing probability and the maintenance cost are reduced.

Description

Technical Field

[0001] The invention relates to the technical field of anti-derailment of large mobile equipment, in particular to a device for preventing derailment of traveling wheels of a large trolley of a coal sampling machine entering a factory. Background Art

[0002] The sampling method of our factory's incoming coal sampling machine is random sampling with a spiral sampling head. The traveling mechanism is completed by the cooperation of traveling wheels and tracks. When the coal truck transports the coal to the sampling machine, the control room controls the sampling machine cart to move to the top of the coal truck. The sampling head installed on the cart randomly extends downward into the car for sampling. The coal is rotated on the spiral sampling head and sent to the first-level feeding belt for subsequent sample preparation procedures.

[0003] The current sampling method has a lot of mechanical wear and erroneous actions. When the sampling machine cart is moving for sampling, the spiral sampling head will descend into the cargo box of the coal truck for sampling. When the sampling head touches the large volume of gangue or hard material in the car, the spiral sampling rod will be subjected to a reverse force and be pushed upward. If the force is too large, it will further forcibly separate the walking wheel from the wheel rail, causing the walking wheel to derail, directly causing the sampling machine to malfunction or stop operating. Frequent maintenance and disassembly will cause damage to other parts, resulting in interruption of the normal supply of coal. According to statistics, the four sampling machines in our factory jumped tracks 18 times from January to December 2022, and 23 times from January to December 2023, seriously affecting the sampling efficiency of the sampling system and thus affecting the coal supply, reducing the safety efficiency of the equipment and increasing the maintenance cost of the equipment. Summary of the invention

[0004] In view of the problems that the existing device for preventing the traveling wheels of the coal sampling machine entering the factory from derailing is prone to derailment and increases maintenance costs, the present invention is proposed.

[0005] Therefore, the present invention provides a device to prevent the derailment of the walking wheels of the coal sampling machine entering the factory, the purpose of which is to solve the technical problems that the sampling machine is easily derailed by external force, affecting the coal feeding efficiency and having high maintenance costs.

[0006] In order to solve the above technical problems, the present invention provides the following technical solution: comprising an anti-slip unit.

[0007] Among them, the anti-slip unit includes a fixed plate arranged on the sampler, a chassis assembly arranged on the fixed plate, a limit shaft assembly arranged on the chassis assembly, and a limit plate assembly rotatably arranged on the limit shaft assembly.

[0008] As a preferred solution of the device for preventing the derailment of the walking wheels of the coal sampling machine trolley entering the factory as described in the present invention, the fixing plate is provided with a connecting edge connected to the sampler, the fixing plate is provided with a yield groove, and the fixing plate is provided with a mounting platform.

[0009] As a preferred solution of the device for preventing the derailment of the traveling wheels of the coal sampling machine trolley entering the factory described in the present invention, a yielding inclined surface is provided on the bottom surface of the fixed plate.

[0010] As a preferred solution of the device for preventing the derailment of the walking wheels of the coal sampling machine trolley entering the factory as described in the present invention, the chassis assembly includes a chassis arranged on the mounting platform, and bolts arranged on the chassis and connected to the limit shaft assembly.

[0011] As a preferred solution of the device for preventing the derailment of the walking wheels of the coal sampling machine trolley entering the factory as described in the present invention, the limiting shaft assembly includes a mounting seat arranged on the chassis, a connecting shaft arranged on the mounting seat, and a mounting shaft arranged on the connecting shaft.

[0012] As a preferred solution of the device for preventing the derailment of the traveling wheels of the coal sampling machine trolley entering the factory described in the present invention, the limiting plate assembly includes a limiting plate and a bearing arranged on the limiting plate and on the mounting shaft.

[0013] As a preferred solution of the device for preventing the derailment of the traveling wheels of the coal sampling machine trolley entering the factory described in the present invention, two bearings are provided.

[0014] As a preferred solution of the device for preventing the derailment of the traveling wheels of the coal sampling machine trolley entering the factory described in the present invention, the bearing is a deep groove ball bearing.

[0015] As a preferred solution of the device for preventing the derailment of the walking wheels of the coal sampling machine trolley entering the factory described in the present invention, the limiting plate is provided with an installation groove 1, the limiting plate is provided with a through groove, and the limiting plate is provided with an installation groove 2.

[0016] As a preferred solution of the device for preventing the derailment of the traveling wheels of the coal sampling machine trolley entering the factory described in the present invention, an annular groove for making way with the track is provided on the outer peripheral surface of the limiting plate.

[0017] The beneficial effects of the present invention are as follows: a fixed plate, a chassis assembly, a limit shaft assembly, and a limit plate assembly are provided; the fixed plate is installed on the sampler, and rolling friction is performed between the limit plate assembly and the track; the height of the bottom surface of the sampler is lengthened by the height of the anti-slip unit in the vertical direction, thereby effectively preventing the sampler from being easily separated from the track or tilting when it is bumped by external force; and reducing the probability of derailment and maintenance costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0019] Figure 1 It is a schematic diagram of the overall structure of the first embodiment of the present invention.

[0020] Figure 2 This is a front view of the first embodiment of the present invention.

[0021] Figure 3 It is a schematic structural diagram of the chassis assembly in the first embodiment of the present invention.

[0022] Figure 4 It is a schematic structural diagram of the limit shaft assembly in the first embodiment of the present invention.

[0023] Figure 5 It is a schematic structural diagram of the limiting plate assembly in the first embodiment of the present invention.

[0024] Figure 6 This is a schematic diagram of the structure of the second embodiment of the present invention.

[0025] Figure 7 This is a schematic diagram of the structure of the third embodiment of the present invention. DETAILED DESCRIPTION

[0026] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below in conjunction with the accompanying drawings.

[0027] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0028] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor is it an embodiment that is mutually exclusive with other embodiments, either individually or selectively.

[0029] Secondly, the present invention is described in detail with reference to the schematic diagram. When describing the embodiments of the present invention in detail, for the sake of convenience, the cross-sectional diagrams showing the device structure will not be partially enlarged according to the general scale, and the schematic diagrams are only examples, which should not limit the scope of protection of the present invention. In addition, in actual production, the three-dimensional dimensions of length, width and depth should be included.

[0030] Example 1, reference Figure 1-5 , which is the first embodiment of the present invention, provides a device for preventing the derailment of the traveling wheels of the coal sampling machine entering the factory, and the device includes an anti-slip unit 100. The anti-slip unit 100 is installed on the sampler, and rolling friction is performed between the anti-slip unit 100 and the track. By setting the anti-slip unit 100, the height of the bottom surface of the sampler is lengthened by the height of the anti-slip unit 100 in the vertical direction, thereby effectively preventing the sampler from easily separating from the track or tilting when it is bumped by external force.

[0031] The anti-slip unit 100 includes a fixed plate 101 disposed on the sampler, a chassis assembly 102 disposed on the fixed plate 101, a limit shaft assembly 103 disposed on the chassis assembly 102, and a limit plate assembly 104 rotatably disposed on the limit shaft assembly 103. There are multiple anti-slip units 100, and the multiple anti-slip units 100 are divided into two groups. The two groups of anti-slip units 100 are respectively installed on the opposite side surfaces of the sampler, and the lower ends of the two anti-slip units 100 extend out of the bottom end of the sampler. The increase in the vertical height of the multiple anti-slip units 100 prevents the sampler from tilting when it is separated from the track during bumping, thereby effectively avoiding the separation of the sampler from the track.

[0032] Preferably, the fixing plate 101 is provided with a connection edge 101a connected to the sampler, the fixing plate 101 is provided with a clearance groove 101b, and the fixing plate 101 is provided with a mounting platform 101c. The mounting platform 101c and the connection edge 101a are located on the same side, and the chassis assembly 102 is mounted on the mounting platform 101c;

[0033] Furthermore, a relief slope 101d is provided on the bottom surface of the fixed plate 101. The relief slope 101d is tilted upward toward the side of the sampler. By increasing the relief slope 101d, the distance between the bottom surface of the fixed plate 101 and the bottom edge of the track can be increased, thereby preventing the impurities accumulated in the track from blocking the operation of the sampler and the anti-slip unit 100, and facilitating the installation of the fixed plate 101, thereby increasing the tolerance of the height of the fixed plate 101 installed on the side of the sampler; the material of the fixed plate 101 is Q235; the thickness of the fixed plate 101 is 12 mm, and the Q235 material has strong welding ability, which is convenient for welding and installing the chassis assembly 102.

[0034] Furthermore, the chassis assembly 102 includes a chassis 102a disposed on the mounting platform 101c, and a bolt 102b disposed on the chassis 102a and connected to the limiting shaft assembly 103. The chassis 102a is welded on the mounting platform 101c.

[0035] In particular, the limiting shaft assembly 103 includes a mounting seat 103a disposed on the chassis 102a, a connecting shaft 103b disposed on the mounting seat 103a, and a mounting shaft 103c disposed on the connecting shaft 103b. The chassis assembly 102 also includes a chuck 102c disposed on the chassis 102a; the bottom surface of the mounting seat 103a is provided with a slot 103e that matches the chuck 102c; the chuck 102c is matched and installed in the slot 103e, and the matching of the chuck 102c and the slot 103e can realize the matching installation of the chassis assembly 102 and the limiting shaft assembly 103, and stable limiting can be performed.

[0036] Preferably, the limiting plate assembly 104 includes a limiting plate 104a and a bearing 104b disposed on the limiting plate 104a and disposed on the mounting shaft 103c. The limiting plate 104a is rotatably disposed on the mounting shaft 103c by the bearing 104b. During the movement of the sampler, the limiting plate 104a is in rolling contact with the track, thereby avoiding high heat generated during sliding contact, causing iron filings on the track to fall off, and also avoiding wear on the track.

[0037] In particular, two bearings 104b are provided. The two bearings 104b are symmetrically arranged on the limiting plate 104a. By providing two bearings 104b, the contact area between the limiting plate 104a and the outer peripheral surfaces of the outer rings of the two bearings 104b can be increased, and the strength of the limiting plate assembly 104 can be improved.

[0038] During use, by installing the fixing plate 101 on the sampler and performing rolling friction between the limit plate assembly 104 and the track, the height of the bottom surface of the sampler is lengthened by the height of the anti-detachment unit 100 in the vertical direction, thereby effectively preventing the sampler from easily separating from the track or tilting when it is jolted by external force.

[0039] The effects achieved by adopting the present invention are:

[0040] 1) The sampling machine needs to work 24 hours a day. If the walking wheel derails, it will seriously affect the coal intake and efficiency. Since the customer coal mine is only willing to accept mechanical sampling, the coal mine will refuse to supply coal if manual sampling is performed. Therefore, the working efficiency and time of the sampling machine are very critical. After improvements, no derailment occurred in the first half of 2024.

[0041] 2) The present invention has obvious economic advantages. Before the transformation, the equipment was maintained 20 times a year on average, and 5 people were required to perform maintenance each time, with each person paying 200 yuan per time. Therefore, the labor maintenance cost can be saved by 20*5*200=20,000 yuan a year; each maintenance requires the purchase of a new sampling head and walking wheel bearings, and the material cost can be saved by 200,000 yuan after the transformation.

[0042] 3) As the sampler is located 8-10 meters away, there are great safety risks during maintenance. After the transformation, the safety risks caused by personnel maintenance can be effectively avoided.

[0043] Example 2, reference Figure 1-6 , which is the second embodiment of the present invention. This embodiment is different from the first embodiment in that: the bearing 104b is a deep groove ball bearing. By selecting the deep groove ball bearing, the clearance of the deep groove ball bearing itself can provide a certain offset for the displacement and tilt of the sampler, which can buffer the force of the sampler to a certain extent and limit the position of the sampler.

[0044] Compared with Example 1, further, the bearing 104b uses a deep groove ball bearing. The deep groove ball bearing is selected because the gap (clearance) between the outer ring of the deep groove ball bearing and the rolling element in the up and down and left and right directions is not large, and the retaining frame can well keep the position of the rolling element unchanged, ensuring the relative stability of the limit plate 104a during the operation of the sampler, and during the movement and operation of the sampler, the clearance can provide a small displacement difference, so that the sampler running wheel and the track can be stably matched to avoid derailment.

[0045] Preferably, the limiting plate 104a is provided with a mounting groove 104c, the limiting plate 104a is provided with a through groove 104d, and the limiting plate 104a is provided with a mounting groove 2 104e. The mounting shaft 103c is provided with a mounting annular groove 103d, and the mounting annular groove 103d and the through groove 104d cooperate with the bearing 104b to be installed in the mounting groove 104c and the mounting groove 2 104e, and the inner circumference of the inner ring of the bearing 104b is pressed against the mounting shaft 103c, so as to realize the matching installation of the limiting plate 104a and the mounting shaft 103c.

[0046] The remaining structures are the same as those of Example 1.

[0047] Example 3, reference Figure 1-7 , which is the third embodiment of the present invention, is different from the second embodiment in that an annular groove 104f is additionally provided on the outer circumferential surface of the limiting plate 104a. The annular groove 104f provides a certain amount of flexibility for the sampler, and can also reduce the friction between the limiting plate 104a and the track when rolling, further reducing the wear between the track and the limiting plate 104a.

[0048] Compared with Example 2, further, an annular groove 104f is provided on the outer circumference of the limiting plate 104a to make way for the track. The annular groove 104f is provided, and the annular groove 104f is in rolling contact with the track. By providing the annular groove 104f, it is possible to provide an extra adjustment amount for the track when the sampler deviates, reduce the friction between the track and the outer circumference of the limiting plate 104a, and reduce the wear between the track and the outer circumference of the limiting plate 104a. It can also further limit the position between the sampler and the track, and prevent the sampler from tilting when it is subjected to external force.

[0049] The remaining structure is the same as that of Example 2.

[0050] Importantly, it should be noted that the construction and arrangement of the present application shown in a plurality of different exemplary embodiments are only exemplary. Although only a few embodiments are described in detail in this disclosure, it should be readily understood by those who refer to this disclosure that many modifications are possible (e.g., the size, scale, structure, shape and proportion of various elements, as well as parameter values ​​(e.g., temperature, pressure, etc.), mounting arrangements, use of materials, color, directional changes, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in the application. For example, the element shown as integrally formed can be composed of multiple parts or elements, the position of the element can be inverted or otherwise changed, and the nature or number or position of the discrete element can be changed or changed. Therefore, all such modifications are intended to be included in the scope of the present invention. The order or sequence of any process or method steps can be changed or reordered according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure of the execution function described herein, and is not only structurally equivalent but also equivalent structure. Without departing from the scope of the present invention, other replacements, modifications, changes and omissions can be made in the design, operating conditions and arrangement of the exemplary embodiments. Therefore, the invention is not limited to a specific embodiment, but extends to numerous modifications still falling within the scope of the appended claims.

[0051] Additionally, in order to provide a concise description of exemplary embodiments, all features of an actual embodiment (ie, those features that are not relevant to the best mode presently contemplated for carrying out the invention or those that are not relevant to implementing the invention) may not be described.

[0052] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A device for preventing the derailment of the traveling wheels of a coal sampling machine entering the factory, characterized in that: include, The anti-slip unit (100) comprises a fixing plate (101) arranged on the sampler, a chassis assembly (102) arranged on the fixing plate (101), a limiting shaft assembly (103) arranged on the chassis assembly (102), and a limiting disk assembly (104) rotatably arranged on the limiting shaft assembly (103).

2. The device for preventing the derailment of the traveling wheels of the coal sampling machine entering the factory according to claim 1 is characterized in that: The fixing plate (101) is provided with a connection edge (101a) connected to a sampling machine, the fixing plate (101) is provided with a clearance groove (101b), and the fixing plate (101) is provided with a mounting platform (101c).

3. The device for preventing the derailment of the traveling wheels of the coal sampling machine entering the factory according to claim 2 is characterized in that: The bottom surface of the fixing plate (101) is provided with a relief slope (101d).

4. The device for preventing the derailment of the traveling wheels of the coal sampling machine entering the factory according to claim 3 is characterized in that: The chassis assembly (102) comprises a chassis (102a) arranged on the mounting platform (101c), and a bolt (102b) arranged on the chassis (102a) and connected to the limiting shaft assembly (103).

5. The device for preventing the derailment of the traveling wheels of the coal sampling machine entering the factory according to any one of claims 1 to 4, characterized in that: The limiting shaft assembly (103) comprises a mounting seat (103a) arranged on the chassis (102a), a connecting shaft (103b) arranged on the mounting seat (103a), and a mounting shaft (103c) arranged on the connecting shaft (103b).

6. The device for preventing the derailment of the traveling wheels of the coal sampling machine entering the factory according to claim 5 is characterized in that: The limiting plate assembly (104) comprises a limiting plate (104a) and a bearing (104b) arranged on the limiting plate (104a) and arranged on the mounting shaft (103c).

7. The device for preventing the derailment of the traveling wheels of the coal sampling machine entering the factory according to claim 6 is characterized in that: Two bearings (104b) are provided.

8. The device for preventing the derailment of the traveling wheels of the coal sampling machine entering the factory according to claim 7 is characterized in that: The bearing (104b) is a deep groove ball bearing.

9. The device for preventing the derailment of the traveling wheels of the coal sampling machine entering the factory according to claim 8 is characterized in that: The limiting plate (104a) is provided with a first installation groove (104c), the limiting plate (104a) is provided with a through groove (104d), and the limiting plate (104a) is provided with a second installation groove (104e).

10. The device for preventing the derailment of the traveling wheels of the coal sampling machine entering the factory according to claim 9 is characterized in that: The outer peripheral surface of the limiting plate (104a) is provided with an annular groove (104f) for making way for the track.

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