Wheel train device applied to compaction under snowfield working condition
Through the radial tire plus inner tube combination and inflatable assembly, the problems of slippage and air pressure leakage of rubber wheel roller during snow compaction are solved, the snow layer compaction effect and safety are improved, and more efficient snow compaction is achieved and stable operation.
Patent Information
- Application Number
- CN202421260481.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-04
- Publication Date
- 2024-12-31
- Estimated Expiration
- 2034-06-04
AI Technical Summary
During the snow compaction process, existing rubber wheel rollers have dangerous accidents such as slippage, high sidewall rigidity, weak impact absorption ability, and leakage of air pressure in the tire in extremely cold environments, which affects the effect and safety of snow layer compaction.
The anti-slip radial tire plus inner tube combination is equipped with an inflatable assembly to improve the compaction effect and safety of the snow layer, and improve the stability and sealing of the wheel train device through limiting components and sealing elements.
The radial ply of the radial tire increases the flexibility of the sidewall, reduces bumps and improves the compaction effect of the snow layer; the inner tube combination prevents air pressure leakage and ensures safety; the inflatable assembly adjusts the tire pressure to ensure stability; the limit and sealing components improve Connection stability and sealing.
Smart Images
Figure CN222271700U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a wheel system device used for compaction in snow working conditions, belonging to the technical field of road roller engineering machinery. Background Art
[0002] When using conventional rigid rolling devices to compact the snow layer, the inter-particle bonds between the snow layers will break or inter-crystalline slip will occur. Under high strain rates, the compressed snow layer often fails in a brittle manner. By referring to the flexible rolling effect of the rubber-wheeled roller, a land-based surface rolling equipment, on the road surface, it is applied to the ice and snow compaction operation environment. Due to the deformation of the tire and the deadweight of the equipment, a kneading effect is produced on the snow layer to be compacted, which makes it less likely for the snow layer to be brittle and damaged after being compressed, and has a better snow compaction effect.
[0003] At present, most rubber-wheeled rollers on the market use smooth bias tires. Smooth bias tires have insufficient grip and driving performance during the snow compaction process, and often slip, making it impossible to smoothly complete the entire process of ice and snow surface compaction. In addition, due to the large number of cord layers, bias tires have a significantly thicker carcass than radial tires. Under extremely cold conditions, the tire hardening is more obvious, the sidewall rigidity is greater, and the ability to absorb impact is weakened, which in turn affects the snow compaction effect. At the same time, after a conventional vacuum radial tire is attached to the rim, due to the inconsistent shrinkage rates of the rubber material of the tire and the metal material of the rim, in extremely cold ice and snow environments, a gap is easily generated between the vacuum tire and the rim, resulting in air pressure leakage in the tire and causing dangerous accidents. Summary of the invention
[0004] Purpose of the invention: In view of the deficiencies in the prior art, the utility model provides a wheel system device for compacting snow conditions. The utility model adopts a combination of an anti-skid radial tire and an inner tube, and is equipped with an inflation assembly, which improves the compaction effect of the snow layer.
[0005] Technical solution: A wheel train device used for compaction in snow conditions, including a frame and a wheel train assembly installed on the frame, the wheel train assembly including a radial tire assembly, a mounting assembly, and a connecting shaft, the radial tire assembly being respectively arranged at two ends of the connecting shaft through the mounting assembly, the radial tire assembly including a radial tire, an inner tube, a rim and a hub, the radial tire being sleeved on the outside of the rim, the inner tube being arranged between the radial tire and the rim, and the rim and the hub being detachably connected.
[0006] The utility model is mostly used in outdoor ice and snow work scenes. Since the radial cord layer of the radial tire increases the flexibility of the sidewall, it can reduce the bumping and impact phenomenon during the snow layer compaction process, and protect the highly brittle ice and snow compaction surface layer to a great extent. In addition, there is a high-strength belt layer, and the tread stiffness is relatively high, which is conducive to the efficient conversion between the load and the ground contact pressure of the snow layer compaction module. At the same time, in order to prevent the formation of a gap between the conventional vacuum tire and the rim under extremely cold ice and snow environment conditions, resulting in leakage of air pressure in the tire and causing dangerous accidents, a combination of a radial tire and an inner tube is adopted to improve safety. The tread can be provided with a pattern to increase grip and prevent slipping.
[0007] Preferably, in order to improve the connection stability between the wheel hub and the connecting shaft, the installation assembly includes a limit assembly and a first bearing cover, a bearing and a second bearing cover which are sequentially installed on the connecting shaft, the first bearing cover and the second bearing cover are respectively detachably connected to the wheel hub, and the limit assembly is installed on the connecting shaft and contacts with the inner ring of the bearing.
[0008] By detachably connecting the first bearing cap and the second bearing cap to the wheel hub, when the wheel train device moves, the first bearing cap, the bearing and the second bearing cap rotate around the connecting shaft, and a limit assembly is provided to improve the stability of the bearing during movement, thereby achieving the follow-up of the wheel train device and improving the connection stability of the wheel train device.
[0009] Preferably, in order to prevent axial displacement of the inner ring of the bearing, the limiting assembly includes a retaining ring, a baffle and a limiting portion, the retaining ring is installed between the second bearing cover and the connecting shaft, the baffle is detachably installed on the end face of the connecting shaft, the diameter of the baffle is larger than the outer diameter of the end face of the connecting shaft, the two end faces of the retaining ring are in contact with the inner ring of the bearing and the baffle respectively, the outer cylindrical surface of the limiting portion is in contact with the inner ring of the first bearing cover, and the end face of the limiting portion is in contact with the inner ring of the bearing.
[0010] A retaining ring, a baffle and a limiting part are provided. The limiting part limits one side of the inner ring of the bearing, and the other side of the inner ring of the bearing is limited by the retaining ring and the baffle together to ensure that the inner ring of the bearing does not undergo axial displacement.
[0011] Preferably, in order to improve sealing and prevent oil leakage, sealing elements are respectively installed between the inner ring of the first bearing cover and the inner ring of the second bearing cover and the connecting shaft, and the inner ring of the sealing element of the second bearing cover contacts the outer ring of the retaining ring.
[0012] Sealing elements are used to isolate the parts that need lubrication from the external environment to prevent oil leakage, while preventing external dust and impurities from entering the equipment, thereby ensuring the normal operation of the equipment and extending the service life of the equipment.
[0013] Preferably, in order to reduce the tire pressure difference between the inner tubes of the radial tire assembly, an inflation assembly is also included, the inflation assembly includes an air inlet, an air inlet pipe, a T-type pipe and an inflation assembly, the T-type pipe is arranged inside the connecting shaft, the T-type pipe includes an input channel perpendicular to the axial direction of the connecting shaft and an output channel parallel to the axial direction of the connecting shaft, the air inlet, the air inlet pipe, the input channel, the output channel and the inflation assembly are connected in sequence.
[0014] The inner tubes are inflated simultaneously using a T-type pipe. When the pressure of one inner tube is too high, the T-type pipe will automatically divert the gas to the inner tube on the other side with lower pressure, so that the pressure of the inner tubes on both sides remains consistent, thereby reducing the pressure difference and ensuring the stability of the wheel system during operation.
[0015] Preferably, in order to inflate the inner tube and prevent interference of the inflation component, the inflation component includes a rotary inflation head, a connecting part, and an inner tube air valve connected in sequence, the rotary inflation head is connected to the output channel of the T-type pipeline, and the inner tube air valve is connected to the inner tube.
[0016] The inflation head is set to be rotatable so that when the connecting part moves with the radial tire, the inflation head can rotate around the tire axis with the connecting part, thereby improving the inflation stability.
[0017] Preferably, in order to realize one-way transmission of gas from the T-shaped pipeline in the connecting shaft to the inner tube, a one-way valve connected to the connecting portion and the inner tube valve nozzle is also included.
[0018] Preferably, in order to reduce the tire pressure difference between each set of wheel train components, at least two sets of wheel train components are provided, and the air intake pipes of each set of wheel train components are connected in parallel. By providing the air intake pipes of each set of wheel train components in parallel, the tire pressure difference between each set of wheel train components can be adaptively adjusted to improve the stability when snow is pressed. A pressure sensor can also be provided to adjust the pressure of each tire individually.
[0019] Preferably, in order to improve the structural strength of the support seat and the connecting shaft, a support seat is provided between the frame and the wheel train assembly, and the support seat is detachably connected to the frame and fixedly connected to the connecting shaft.
[0020] The detachable connection between the support seat and the frame can be connected by bolts, and the support seat and the connecting shaft can be fixedly connected, for example, by welding, to improve the structural strength of the support seat and the connecting shaft to adapt to snow compacting conditions in extremely cold ice and snow environments.
[0021] Preferably, the support seat and the side end surface of the frame are detachably connected via a connecting plate.
[0022] In order to improve the connection stability between the support seat and the frame, a connecting plate is provided to be detachably connected to the support seat and the frame, such as a bolt connection, so as to reduce the shear force on the connecting bolts between the support seat and the frame and increase the connection stability between the support seat and the frame.
[0023] Beneficial effects: The utility model adopts a patterned radial tire and an inner tube combination. Compared with ordinary smooth bias tires, the radial cord layer of the radial tire increases the flexibility of the sidewall, reduces the bumping and impact phenomenon during the snow layer compaction process, and protects the highly brittle ice and snow compaction surface layer to a great extent; the pattern on the tread is beneficial to increase grip and prevent slipping; due to the presence of a high-strength belt layer, the tread stiffness of the radial tire is relatively high, which is beneficial to the efficient conversion between the load and ground contact pressure of the snow layer compaction module. At the same time, the radial tire and inner tube combination can prevent the formation of gaps between the tire and the rim under extremely cold ice and snow conditions, thereby causing dangerous accidents caused by air pressure leakage; at the same time, it is equipped with an inflation assembly to reduce the tire pressure difference between the inner tubes, so that the tire pressure of each inner tube is consistent and adjustable; the provision of a connecting plate can reduce the shear force between the frame and the support seat, and improve the connection stability. BRIEF DESCRIPTION OF THE DRAWINGS
[0024] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings in the following description are only embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.
[0025] Figure 1 It is the overall structure diagram of the utility model;
[0026] Figure 2 This is the overall structure diagram of the radial tire assembly;
[0027] Figure 3 For installation components and inflation assembly structure diagram;
[0028] Figure 4 This is the structural diagram of the connecting plate, support seat and frame;
[0029] Figure 5 This is a structural diagram of the connecting plate, support seat and connecting shaft. DETAILED DESCRIPTION
[0030] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0031] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.
[0032] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.
[0033] like Figure 1 and Figure 2 As shown, a wheel train device used for compaction in snow conditions includes a frame 1 and a wheel train assembly 2 installed on the frame 1, the wheel train assembly 2 includes a radial tire assembly 21, a mounting assembly 22, and a connecting shaft 23, the radial tire assembly 21 is respectively arranged at both ends of the connecting shaft 23 through the mounting assembly 22, the radial tire assembly 21 includes a radial tire 211, an inner tube 212, a rim 213 and a hub 214, the radial tire 211 is sleeved on the outside of the rim 213, the inner tube 212 is arranged between the radial tire 211 and the rim 213, and the rim 213 and the hub 214 are detachably connected.
[0034] The utility model is mostly used in outdoor work scenes on ice and snow. Since the radial cord layer of the radial tire 211 increases the flexibility of the sidewall, it can reduce the bumping and impact phenomenon during the snow layer compaction process, and protect the highly brittle ice and snow compaction surface layer to a great extent. In addition, there is a high-strength belt layer, and the tread stiffness is relatively high, which is conducive to the efficient conversion between the load and the ground pressure ratio of the snow layer compaction module. At the same time, in order to prevent the formation of a gap between the conventional vacuum tire and the rim 213 in extremely cold ice and snow environments, resulting in air pressure leakage in the tire and causing dangerous accidents, a combination of a radial tire 211 and an inner tube 212 is adopted to improve safety. The tread can be provided with a pattern to increase grip and prevent slipping.
[0035] like Figure 3 As shown, in order to improve the connection stability between the wheel hub 214 and the connecting shaft 23, the installation assembly 22 includes a limiting assembly 221 and a first bearing cover 222, a bearing 223 and a second bearing cover 224 which are sequentially installed on the connecting shaft 23, the first bearing cover 222 and the second bearing cover 224 are respectively detachably connected to the wheel hub 214, and the limiting assembly 221 is installed on the connecting shaft 23 and contacts the inner ring of the bearing 223.
[0036] By detachably connecting the first bearing cap 222 and the second bearing cap 224 to the wheel hub 214, when the wheel train device moves, the first bearing cap 222, the bearing 223 and the second bearing cap 224 rotate around the connecting shaft 23. At the same time, a limit assembly 221 is provided to improve the stability of the bearing 223 during movement, thereby achieving the follow-up of the wheel train device and improving the connection stability of the wheel train device.
[0037] In order to prevent the inner ring of the bearing 223 from axial displacement, the limiting assembly 221 includes a retaining ring 2211, a baffle 2212 and a limiting portion 2213. The retaining ring 2211 is installed between the second bearing cover 224 and the connecting shaft 23. The baffle 2212 is detachably installed on the end face of the connecting shaft 23. The diameter of the baffle 2212 is larger than the outer diameter of the end face of the connecting shaft 23. The two end faces of the retaining ring 2211 are in contact with the inner ring of the bearing 223 and the baffle 2212 respectively. The outer cylindrical surface of the limiting portion 2213 is in contact with the inner ring of the first bearing cover 222, and the end face of the limiting portion 2213 is in contact with the inner ring of the bearing 223.
[0038] A retaining ring 2211, a baffle plate 2212 and a limiting portion 2213 are provided. The limiting portion 2213 limits one side of the inner ring of the bearing 223, and the other side of the inner ring of the bearing 223 is limited by the retaining ring 2211 and the baffle plate 2212 to ensure that the inner ring of the bearing 223 does not undergo axial displacement.
[0039] In order to improve the sealing performance and prevent oil leakage, sealing elements 3 are respectively installed between the inner ring of the first bearing cover 222 and the inner ring of the second bearing cover 224 and the connecting shaft 23, and the inner ring of the sealing element 3 of the second bearing cover 224 contacts the outer ring of the retaining ring 2211.
[0040] The sealing element 3 is used to isolate the parts that need lubrication from the external environment to prevent oil leakage, and at the same time prevent external dust and impurities from entering the interior of the equipment, thereby ensuring the normal operation of the equipment and extending the service life of the equipment.
[0041] like Figure 1 and Figure 3 As shown, in order to reduce the tire pressure difference between the inner tubes 212 of the radial tire assembly 21, an inflation assembly 4 is also included, and the inflation assembly 4 includes an air inlet 41, an air inlet pipe 42, a T-type pipe 43 and an inflation assembly 44. The T-type pipe 43 is arranged inside the connecting shaft 23, and the T-type pipe 43 includes an input channel perpendicular to the axial direction of the connecting shaft 23 and an output channel parallel to the axial direction of the connecting shaft 23. The air inlet 41, the air inlet pipe 42, the input channel, the output channel, and the inflation assembly 44 are connected in sequence.
[0042] The inner tubes 212 are inflated simultaneously using a T-type pipe 43. When the tire pressure of one of the inner tubes 212 is too high, the T-type pipe 43 will automatically divert the gas to the inner tube 212 on the other side with lower tire pressure, so that the tire pressure of the inner tubes 212 on both sides remains consistent, thereby reducing the tire pressure difference and ensuring the stability of the wheel system device during operation.
[0043] In order to inflate the inner tube 212 and prevent interference with the inflation component 44, the inflation component 44 includes a rotary inflation head 441, a connecting part 442, and an inner tube air valve 443 which are connected in sequence. The rotary inflation head 441 is connected to the output channel of the T-type pipe 43, and the inner tube air valve 443 is connected to the inner tube 212.
[0044] The inflation head is set to be rotatable so that when the connection part 442 moves with the radial tire 211, the inflation head can rotate around the tire axis with the connection part 442, thereby improving the inflation stability.
[0045] In order to realize the one-way transmission of gas from the T-shaped pipeline 43 in the connecting shaft 23 to the inner tube 212, a one-way valve 444 connected to the connecting portion 442 and the inner tube valve 443 is also included.
[0046] like Figure 1 As shown, in order to reduce the tire pressure difference between each group of wheel train components 2, at least two groups of wheel train components 2 are provided, and the intake pipes 42 of each group of wheel train components 2 are connected in parallel.
[0047] By setting the air intake pipes 42 of each set of wheel train components 2 in parallel, the tire pressure difference between each set of wheel train components 2 can be adaptively adjusted to improve the stability when snow is pressed. Pressure sensors can also be set to adjust the pressure of each tire individually.
[0048] like Figure 4 and Figure 5 As shown, in order to improve the structural strength of the support seat 5 and the connecting shaft 23, a support seat 5 is provided between the frame 1 and the wheel train assembly 2, and the support seat 5 is detachably connected to the frame 1 and fixedly connected to the connecting shaft 23.
[0049] The detachable connection between the support seat 5 and the frame 1 can be achieved by bolting, and the support seat 5 and the connecting shaft 23 are fixedly connected, for example, by welding, to improve the structural strength of the support seat 5 and the connecting shaft 23 to adapt to snow compacting conditions in extremely cold ice and snow environments.
[0050] In order to improve the connection stability between the support base 5 and the frame 1 , the support base 5 and the side end surface of the frame 1 are detachably connected via a connecting plate 6 .
[0051] The connecting plate 6 is provided to be detachably connected to the support seat 5 and the frame 1 , for example, by bolts, so as to reduce the shear force on the connecting bolts between the support seat 5 and the frame 1 and increase the connection stability between the support seat 5 and the frame 1 .
[0052] In this specification, each embodiment is described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the embodiments can be referred to each other. For the device disclosed in the embodiment, since it corresponds to the method disclosed in the embodiment, the description is relatively simple, and the relevant parts can be referred to the method part.
[0053] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.
Claims
1. A wheel train device for compacting snow, comprising a frame (1) and a wheel train assembly (2) mounted on the frame (1), characterized in that: The wheel train assembly (2) comprises a radial tire assembly (21), a mounting assembly (22), and a connecting shaft (23); the radial tire assembly (21) is respectively arranged at two ends of the connecting shaft (23) via the mounting assembly (22); the radial tire assembly (21) comprises a radial tire (211), an inner tube (212), a rim (213), and a wheel hub (214); the radial tire (211) is sleeved on the outside of the rim (213); the inner tube (212) is arranged between the radial tire (211) and the rim (213); and the rim (213) and the wheel hub (214) are detachably connected.
2. The wheel train device for compacting snow according to claim 1, characterized in that: The mounting assembly (22) comprises a limiting assembly (221) and a first bearing cover (222), a bearing (223) and a second bearing cover (224) which are sequentially mounted on the connecting shaft (23); the first bearing cover (222) and the second bearing cover (224) are respectively detachably connected to the wheel hub (214); the limiting assembly (221) is mounted on the connecting shaft (23) and is in contact with the inner ring of the bearing (223).
3. The wheel train device for compacting snow according to claim 2, characterized in that: The limiting assembly (221) comprises a retaining ring (2211), a baffle (2212) and a limiting portion (2213); the retaining ring (2211) is installed between the second bearing cover (224) and the connecting shaft (23); the baffle (2212) is detachably installed on the end face of the connecting shaft (23); the diameter of the baffle (2212) is larger than the outer diameter of the end face of the connecting shaft (23); the two end faces of the retaining ring (2211) are in contact with the inner ring of the bearing (223) and the baffle (2212) respectively; the outer cylindrical surface of the limiting portion (2213) is in contact with the inner ring of the first bearing cover (222); and the end face of the limiting portion (2213) is in contact with the inner ring of the bearing (223).
4. The wheel train device for compacting snow according to claim 3, characterized in that: Sealing elements (3) are respectively installed between the inner ring of the first bearing cover (222) and the inner ring of the second bearing cover (224) and the connecting shaft (23); the inner ring of the sealing element (3) of the second bearing cover (224) is in contact with the outer ring of the retaining ring (2211).
5. The wheel train device for compacting snow according to claim 1, characterized in that: The invention also comprises an air charging assembly (4), wherein the air charging assembly (4) comprises an air inlet (41), an air inlet pipeline (42), a T-shaped pipeline (43) and an air charging component (44), wherein the T-shaped pipeline (43) is arranged inside the connecting shaft (23), and the T-shaped pipeline (43) comprises an input channel in a direction perpendicular to the axis of the connecting shaft (23) and an output channel in a direction parallel to the axis of the connecting shaft (23), and the air inlet (41), the air inlet pipeline (42), the input channel, the output channel and the air charging component (44) are connected in sequence.
6. The wheel train device for compacting snow according to claim 5, characterized in that: The inflation assembly (44) comprises a rotary inflation head (441), a connecting portion (442), and an inner tube air valve (443) which are connected in sequence; the rotary inflation head (441) is connected to an output channel of the T-shaped pipeline (43), and the inner tube air valve (443) is connected to the inner tube (212).
7. The wheel train device for compacting snow according to claim 6, characterized in that: It also includes a one-way valve (444) connected to the connecting portion (442) and the inner tube air valve (443) respectively.
8. The wheel train device for compacting snow according to claim 7, characterized in that: At least two groups of the gear train components (2) are provided, and the air intake pipelines (42) of each group of gear train components (2) are connected in parallel.
9. The wheel train device for compacting snow according to claim 1, characterized in that: A support seat (5) is provided between the vehicle frame (1) and the wheel train assembly (2); the support seat (5) is detachably connected to the vehicle frame (1) and fixedly connected to the connecting shaft (23).
10. The wheel train device for compacting snow according to claim 9, characterized in that: The support seat (5) and the side end surface of the vehicle frame (1) are detachably connected via a connecting plate (6).