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

Abstract

The utility model 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 utility model 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. Utility Model Content

[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 easy to derail and increases the maintenance cost, the present utility model is proposed.

[0005] Therefore, the utility model provides a device to prevent the derailment of the walking wheels of the coal sampling machine entering the factory, and its purpose 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 utility model provides the following technical solutions: including an anti-drop 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 described in the utility model, wherein: the fixed plate is provided with a connecting edge connected to the sampler, the fixed plate is provided with a yield groove, and the fixed 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 utility model, wherein: 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 described in the utility model, 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 described in the utility model, 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 walking wheels of the coal sampling machine trolley entering the factory described in the utility model, 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 utility model, 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 utility model, 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 utility model, wherein: 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 utility model, wherein: an annular groove for making way with the track is provided on the outer peripheral surface of the limit plate.

[0017] The beneficial effects of the utility model include: 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-detachment unit in the vertical direction, thereby effectively preventing the sampler from being easily separated from the track or tilting when it is jolted by external force; and reducing the probability of derailment and maintenance costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] To more clearly illustrate the technical solutions of the embodiments of the present utility model, the following will briefly introduce the attached drawings required for the description of the embodiments. Obviously, the attached drawings in the following description are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other attached drawings can be obtained based on these drawings.

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

[0020] Figure 2 It is the front view of the first embodiment of the present utility model.

[0021] Figure 3 It is a schematic diagram of the structure of the chassis assembly in the first embodiment of the present utility model.

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

[0023] Figure 5 It is a schematic diagram of the structure of the limit disk assembly in the first embodiment of the present utility model.

[0024] Figure 6 It is a schematic diagram of the structure of the second embodiment of the present utility model.

[0025] Figure 7 It is a schematic diagram of the structure of the third embodiment of the present utility model. Specific embodiments

[0026] To make the above objects, features, and advantages of the present utility model more obvious and understandable, the following will describe the specific embodiments of the present utility model in detail with reference to the drawings in the specification.

[0027] In the following description, many specific details are set forth to fully understand the present utility model. However, the present utility model can also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the connotation of the present utility model. Therefore, the present utility model is not limited by the specific embodiments disclosed below.

[0028] Secondly, the so-called "one embodiment" or "embodiment" herein refers to a specific feature, structure, or characteristic that can be included in at least one implementation of the present utility model. The "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 separately or selectively mutually exclusive with other embodiments.

[0029] Next, the present utility model will be described in detail with reference to the schematic diagrams. When describing the embodiments of the present utility model in detail, for the convenience of description, the cross-sectional views showing the device structure will be enlarged locally in a non-general proportion, and the schematic diagrams are only examples and should not limit the scope of protection of the present utility model herein. In addition, in actual production, three-dimensional spatial dimensions including length, width, and depth should be included.

[0030] Embodiment 1. Refer to Figures 1-5 , which is the first embodiment of the present utility model, and provides a derailment prevention device for the traveling wheels of the coal sampling machine for incoming coal. This device includes a derailment prevention unit 100. The derailment prevention unit 100 is installed on the sampling machine, and rolling friction is carried out between the derailment prevention unit 100 and the track. By setting the derailment prevention unit 100, the height of the bottom surface of the sampling machine is lengthened by the height of the derailment prevention unit 100 in the vertical direction, thereby effectively preventing the sampling machine from easily separating from the track or tilting when jolted by an external force.

[0031] Among them, the derailment prevention unit 100 includes a fixing plate 101 provided on the sampling machine, a chassis assembly 102 provided on the fixing plate 101, a limiting shaft assembly 103 provided on the chassis assembly 102, and a limiting disk assembly 104 rotatably provided on the limiting shaft assembly 103. There are multiple derailment prevention units 100, and the multiple derailment prevention units 100 are divided into two groups. The two groups of derailment prevention units 100 are respectively installed on opposite side surfaces of the sampling machine, and the lower ends of the two derailment prevention units 100 both extend out of the bottom end of the sampling machine. By increasing the height of the multiple derailment prevention units 100 in the vertical direction, the sampling machine can be prevented from tilting when separating from the track during jolting, thereby effectively avoiding the separation of the sampling machine from the track.

[0032] Preferably, the fixing plate 101 is provided with a connecting edge 101a for connecting with the sampling machine, a relief groove 101b is provided on the fixing plate 101, and a mounting table 101c is provided on the fixing plate 101. The mounting table 101c and the connecting edge 101a are on the same side, and the chassis assembly 102 is installed on the mounting table 101c;

[0033] Furthermore, a relief inclined surface 101d is provided on the bottom surface of the fixing plate 101. The relief inclined surface 101d is inclined upward towards the sampling machine side. By increasing the relief inclined surface 101d, the distance between the bottom surface of the fixing plate 101 and the bottom edge of the track can be increased, avoiding the impurities accumulated in the track from blocking the operation of the sampling machine and the derailment prevention unit 100, and also facilitating the installation of the fixing plate 101, increasing the tolerance rate of the installation height of the fixing plate 101 on the side surface of the sampling machine; the material of the fixing plate 101 is selected as Q235; the thickness of the fixing plate 101 is selected as 12 mm. The Q235 material has strong welding ability, which is convenient for welding and installing the chassis assembly 102.

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

[0035] In particular, the limit 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 further includes a chuck 102c disposed on the chassis 102a; a slot 103e for cooperating with the chuck 102c is provided on the bottom surface of the mounting seat 103a; the chuck 102c is cooperatively mounted in the slot 103e, and the cooperation between the chuck 102c and the slot 103e can realize the cooperative mounting of the chassis assembly 102 and the limit shaft assembly 103 for stable limiting.

[0036] Preferably, the limit disc assembly 104 includes a limit disc 104a, and a bearing 104b disposed on the limit disc 104a and on the mounting shaft 103c. Through the arrangement of the bearing 104b, the limit disc 104a is rotatably disposed on the mounting shaft 103c. During the movement of the sampling machine, the limit disc 104a makes rolling contact with the track, avoiding the high heat generated during sliding contact, preventing iron filings on the track from falling off, and also avoiding wear on the track.

[0037] In particular, there are two bearings 104b. The two bearings 104b are symmetrically arranged up and down on the limit disc 104a. By arranging two bearings 104b, the contact area between the limit disc 104a and the outer peripheral surfaces of the outer rings of the two bearings 104b can be increased, improving the strength of the limit disc assembly 104.

[0038] During use, by mounting the fixing plate 101 on the sampling machine, and the limit disc assembly 104 makes rolling friction with the track, the height of the bottom surface of the sampling machine is extended by the height of the anti - detachment unit 100 in the vertical direction, thereby effectively preventing the sampling machine from easily separating from the track or tilting when being jolted by an external force.

[0039] The effects achieved after adopting the present utility model are as follows:

[0040] 1) The sampling machine needs to work continuously for 24 hours every day. If the walking wheels derail, it will seriously affect the coal intake and coal intake efficiency. Since the customer's coal mine only accepts mechanical sampling and refuses to supply coal for manual sampling, the working efficiency time of the sampling machine is very crucial. After improvement, no derailment occurred in the first half of 2024.

[0041] 2) The utility model has obvious economic advantages. Before the transformation, it was maintained 20 times a year on average. Each maintenance required 5 people, and each person cost 200 yuan each time. Therefore, the annual labor maintenance cost can be saved by 20 * 5 * 200 = 20,000 yuan; each time of maintenance required the purchase of new sampling heads and walking wheel bearings, and after the transformation, the material cost was saved by 200,000 yuan.

[0042] 3) Since the sampling machine is at a height of 8 - 10 meters, there are relatively large safety risks during maintenance. After the transformation, the safety risks brought by personnel maintenance can be effectively avoided.

[0043] Example 2, referring to Figures 1-6 , which is the second embodiment of the present utility model. The difference between this embodiment and the first embodiment is that the bearing 104b is selected as a deep groove ball bearing. By selecting a deep groove ball bearing, the clearance (play) inherent in the deep groove ball bearing itself can provide a certain amount of offset for the offset and tilt of the sampling machine, can buffer the force on the sampling machine to a certain extent, and limit the sampling machine.

[0044] Compared with Embodiment 1, further, the bearing 104b is selected as a deep groove ball bearing. The deep groove ball bearing is selected because the clearance (play) between the outer ring and the rolling elements of the deep groove ball bearing in the up - down and left - right directions is not large, and the cage can well maintain the position of the rolling elements without change, ensuring the relative stable state of the limit disc 104a during the operation of the sampling machine. And during the moving operation of the sampling machine, the play can provide a small displacement difference, enabling the walking wheels of the sampling machine to cooperate stably with the track and avoiding derailment.

[0045] Preferably, the limit disc 104a is provided with a first installation groove 104c, a through - groove 104d, and a second installation groove 104e. The installation shaft 103c is provided with an installation ring groove 103d. The installation ring groove 103d cooperates with the through - groove 104d, and the bearing 104b is installed in the first installation groove 104c and the second installation groove 104e. The inner peripheral surface of the inner ring of the bearing 104b is tightly pressed against the installation shaft 103c to realize the cooperative installation of the limit disc 104a and the installation shaft 103c.

[0046] The remaining structures are the same as those in Embodiment 1.

[0047] Example 3, referring to Figures 1-7 , which is the third embodiment of the present utility model. The difference between this embodiment and the second embodiment is that a ring groove 104f is additionally provided on the outer peripheral surface of the limit disc 104a. The ring groove 104f provides a certain amount of offset for the deviation of the sampling machine, and at the same time can reduce the friction between the limit disc 104a and the track during rolling, further reducing the wear between the track and the limit disc 104a.

[0048] Compared with Embodiment 2, further, a ring groove 104f for yielding to the track is provided on the outer peripheral surface of the limit disc 104a. By providing the ring groove 104f, the ring groove 104f is in rolling contact with the track. By providing the ring groove 104f, when the sampler deviates, an extra adjustment amount can be provided for the track, reducing the friction between the track and the outer peripheral surface of the limit disc 104a, as well as reducing the wear between the track and the outer peripheral surface of the limit disc 104a. It can also further limit the sampler and the track, preventing the sampler from tilting when subjected to external forces.

[0049] The remaining structures are the same as those of Embodiment 2.

[0050] Importantly, it should be noted that the construction and arrangement of the present application shown in multiple different exemplary embodiments are merely illustrative. Although only a few embodiments are described in detail in this disclosure, those who refer to this disclosure should easily understand that many modifications are possible without substantially departing from the novel teachings and advantages of the subject matter described in this application (for example, the dimensions, scales, structures, shapes, and proportions of various elements, as well as parameter values (such as temperature, pressure, etc.), installation arrangements, use of materials, color, orientation changes, etc.). For example, an 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, number, or position of discrete elements can be changed or altered. Therefore, all such modifications are intended to be included within the scope of the present utility model. The order or sequence of any process or method steps can be changed or reordered according to alternative embodiments. In the claims, any "means-plus-function" clause is intended to cover the structure that performs the function described herein, and not only structurally equivalent but also equivalent structures. Other substitutions, modifications, changes, and omissions can be made in the design, operating conditions, and arrangement of the exemplary embodiments without departing from the scope of the present utility model. Therefore, the present utility model is not limited to specific embodiments, but extends to various modifications that still fall within the scope of the appended claims.

[0051] In addition, in order to provide a concise description of the exemplary embodiments, not all features of the actual embodiments may be described (i.e., those features that are not relevant to the currently considered best mode of implementing the present utility model or those features that are not relevant to the implementation of the present utility model).

[0052] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present utility model and are not limiting. Although the present utility model has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present utility model can be modified or equivalently replaced without departing from the spirit and scope of the technical solutions of the present utility model, and they should all be covered within the scope of the claims of the present utility model.

Claims

1. A derailment prevention device for the large vehicle running wheels of an in-plant coal sampling machine, 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 derailment prevention device for the large vehicle running wheels of the in-plant coal sampling machine according to claim 1, 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 derailment prevention device for the large vehicle running wheels of the in-plant coal sampling machine according to claim 2, wherein: The bottom surface of the fixing plate (101) is provided with a relief slope (101d).

4. The derailment prevention device for the large vehicle traveling wheels of the in-plant coal sampling machine according to claim 3, wherein: 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 derailment prevention device for the trolley walking wheels of the in-plant coal sampling machine 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 derailment prevention device for the large vehicle traveling wheels of the in-plant coal sampling machine according to claim 5, 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 derailment prevention device for the large vehicle traveling wheels of the in-plant coal sampling machine according to claim 6, characterized in that: Two bearings (104b) are provided.

8. The derailment prevention device for the large vehicle running wheels of the in-plant coal sampling machine according to claim 7, characterized in that: The bearing (104b) is a deep groove ball bearing.

9. The derailment prevention device for the large vehicle running wheels of the in-plant coal sampling machine according to claim 8, wherein: 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 derailment prevention device for the large vehicle traveling wheels of the in-plant coal sampling machine according to claim 9, 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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