CN219488661U - Roller assembly - Google Patents

Abstract

The utility model discloses a roller assembly which is used for bearing a part to be rotated. The roller assembly comprises a roller seat, a wheel shaft and a roller, wherein the roller seat comprises a first mounting seat and a second mounting seat which are oppositely arranged at intervals, the roller is sleeved on the wheel shaft through a shaft hole, two ends of the wheel shaft are respectively inserted into mounting holes of the first mounting seat and the second mounting seat, and the roller can rotate relative to the roller seat. According to the scheme, through structural optimization, the functional requirement of the side platform roller supporting device can be met, and the technical guarantee is improved for reliable realization of loading and unloading performance.

Description

Roller assembly

Technical Field

The utility model relates to the technical field of supporting equipment of piggyback transport vehicles, in particular to a roller assembly.

Background

Existing piggyback vehicles are driven to rotate by ground equipment, wherein the side station roller support devices are part of the ground equipment. The side platform roller supporting device comprises a plurality of rollers, can comprise driving rollers which are close to a track, can drive a concave underframe at one side of a piggyback transport vehicle to rotate, and can also comprise driven wheels so as to support the concave underframe to be matched for follow-up. In practical operation, the maximum bearing capacity of the roller supporting device is designed to be about 30t, and the bearing reliability is required to be high.

In view of this, there is a need to propose an improvement for the rollers of the side platform roller support device to match the rotation of the concave chassis to achieve reliable loading and unloading performance.

Disclosure of Invention

In order to solve the technical problems, the utility model provides the roller assembly, which can meet the functional requirements of the roller supporting device of the side platform through the structural optimization of the rollers and improve the technical guarantee for reliably realizing the loading and unloading performance.

The utility model provides a roller assembly, which is used for bearing a part to be rotated and comprises a roller seat, a wheel shaft and a roller, wherein the roller seat comprises a first mounting seat and a second mounting seat which are oppositely arranged at intervals, the roller is sleeved on the wheel shaft through a shaft hole, two ends of the wheel shaft are respectively inserted into mounting holes of the first mounting seat and the second mounting seat, and the roller can rotate relative to the roller seat.

Optionally, the roller seat further includes two vertical plates, and two ends of the two vertical plates are respectively fixed with the first mounting seat and the second mounting seat.

Optionally, the shaft end surfaces on two sides of the roller are provided with convex rings, and the convex rings are positioned at the hole edges of the shaft hole so as to form axial gaps with the first mounting seat and the second mounting seat respectively.

Optionally, the roller assembly further comprises two bushings, the two bushings are sequentially arranged between the roller and the wheel shaft along the axial direction, and the wheel shaft is fixedly arranged on the roller seat.

Optionally, the roller assembly further comprises an oil cup, and the wheel shaft is provided with an oil distribution groove, a communication oil hole and an oil cup mounting hole; the distribution oil groove is formed in the outer surface of the wheel shaft, and extends to a position where the wheel shaft is matched with the two bushings; the oil cup mounting hole is positioned at the shaft end of the wheel shaft, and the oil cup is mounted and fixed in the oil cup mounting hole.

Optionally, the roller assembly further comprises a clamping plate, the shaft end of the wheel shaft is provided with a clamping groove, the clamping groove is formed in the outer peripheral surface of the wheel shaft at the outer side of the second mounting seat, and the clamping plate is arranged in the clamping groove and is fixed on the second mounting seat through a threaded fastener.

Optionally, the roller assembly further comprises a driving component, two shaft shoulders of the wheel shaft are respectively pivoted in the mounting holes of the first mounting seat and the second mounting seat, and the first end of the wheel shaft is in transmission connection with the output end of the driving component.

Optionally, the roller assembly further includes a bearing, and the axle is pivotally connected to the mounting holes of the first mounting seat and the second mounting seat through the bearing respectively.

Optionally, the roller assembly further includes an adjusting seat and a washer, the middle part of the adjusting seat has a through hole, the output side of the driving component can be inserted into the through hole, and the driving component, the adjusting seat and the first mounting seat are fixed by bolts; the inner wall of the through hole of the adjusting seat is provided with a convex shoulder formed by radial extension, and the gasket is arranged between the convex shoulder of the adjusting seat and the first end of the wheel shaft along the axial direction.

Optionally, the roller assembly further comprises a sealing plate, the sealing plate is fixed on the second mounting seat on the side where the second end of the wheel shaft is located, and a mounting spigot is arranged on the opposite side of the sealing plate and the second mounting seat, and the mounting spigot is arranged in a mounting hole of the second mounting seat.

Aiming at the problem that a piggyback transport vehicle needs a side platform roller supporting device to cooperate to finish loading and unloading, the utility model creatively provides an implementation scheme of a roller assembly, and particularly, a roller seat comprises a first mounting seat and a second mounting seat which are oppositely arranged at intervals, a roller is sleeved on a wheel shaft through a shaft hole, two ends of the wheel shaft are respectively inserted into mounting holes of the first mounting seat and the second mounting seat, and the roller can rotate relative to the roller seat. The whole structure is compact, the integration level is high, the selectable basic bearing strength can be obtained through the roller seat, the functional requirement of the side platform roller supporting device can be met, and the technical guarantee is improved for reliable realization of loading and unloading performance.

In an alternative scheme of the utility model, the roller assembly further comprises two bushings, the two bushings are sequentially arranged between the roller and the wheel shaft along the axial direction, and the wheel shaft is fixedly arranged on the roller seat. The roller can rotate relative to the wheel shaft while bearing the supporting force, has the functions of bearing and rotating, and can bear the rolling support to rotate the concave bottom frame through the roller, namely bear the rotary displacement of the part to be rotated. Based on the arrangement of the bushing, the rolling abrasion of the rolling wheel can be avoided, and the rolling wheel serving as the driven wheel can be matched to realize loading and unloading performance.

In another alternative scheme of the utility model, the roller assembly further comprises a driving component, two shaft shoulders of the wheel shaft are respectively pivoted in the mounting holes of the first mounting seat and the second mounting seat, and the first end of the wheel shaft is in transmission connection with the output end of the driving component. The roller can rotate relative to the wheel shaft while bearing the supporting force, has the functions of bearing and rotating, and can bear the rolling support to rotate the concave bottom frame through the roller, namely bear the rotary displacement of the part to be rotated. Based on the arrangement of the bushing, the rolling abrasion of the rolling wheel can be avoided, and the rolling wheel serving as the driven wheel can be matched to realize loading and unloading performance.

Drawings

FIG. 1 is a schematic view of the overall structure of a roller assembly according to the embodiment;

FIG. 2 is a schematic view of another angular formation of the roller assembly shown in FIG. 1;

FIG. 3 is an exploded view of the assembly relationship of the roller assembly shown in FIG. 1;

FIG. 4 is an axial cross-sectional view of the roller assembly shown in FIG. 1;

FIG. 5 is an axial cross-sectional view of the axle shown in FIG. 3;

FIG. 6 is a schematic view of the overall structure of another roller assembly according to the embodiment;

FIG. 7 is a schematic view of another angular formation of the roller assembly shown in FIG. 6;

FIG. 8 is an exploded view of the assembly relationship of the roller assembly shown in FIG. 6;

FIG. 9 is an axial cross-sectional view of the roller assembly shown in FIG. 6;

FIG. 10 is a schematic view of the axle shown in FIG. 7;

FIG. 11 is a schematic view of the docking station shown in FIG. 8;

fig. 12 is a schematic view of the closure plate shown in fig. 8.

In the figure:

the roller assembly 1, the roller seat 11, the first mounting seat 111, the second mounting seat 112, the vertical plate 113, the wheel axle 12, the oil distribution groove 121, the oil communication hole 122, the oil cup mounting hole 123, the clamping groove 124, the roller 13, the shaft hole 131, the convex ring 132, the bushing 14, the oil cup 15 and the clamping plate 16;

roller assembly 2, roller seat 21, first mount 211, second mount 212, riser 213, oil filler hole 214, axle 22, splined hole 221, roller 23, bearing 24, oil cup 25, seal plate 26, mounting spigot 261, key 27, driving member 28, splined shaft 281, adjustment seat 29, through hole 291, shoulder 292, and gasket 210.

Detailed Description

In order to make the technical solution of the present utility model better understood by those skilled in the art, the present utility model will be further described in detail with reference to the accompanying drawings and specific embodiments.

Referring to fig. 1 and 2, fig. 1 is a schematic view of an overall structure of a roller assembly, and fig. 2 is a schematic view of another angle formed by the roller assembly shown in fig. 1.

The roller assembly 1 comprises a roller seat 11, a wheel shaft 12 and a roller 13, wherein the roller seat 11 comprises a first mounting seat 111 and a second mounting seat 112 which are oppositely arranged at intervals, the roller 13 is sleeved on the wheel shaft 12, two ends of the wheel shaft 12 are respectively inserted into mounting holes of the first mounting seat 111 and the second mounting seat 112, and the roller 13 can rotate relative to the roller seat 11.

In this embodiment, two vertical plates 113 are fixedly disposed between the first mounting seat 111 and the second mounting seat 112, specifically, two ends of the two vertical plates 113 are welded and fixed with the first mounting seat 111 and the second mounting seat 112 respectively, so as to form a roller seat 11 with stable structure, and the strength of the basic bearing structure can be improved. In other implementations, the roller mount may take other forms, such as, but not limited to, a unitary structure formed based on a casting process. Of course, compared with the scheme of adopting a plate welding mode, the method has the characteristics of convenience in processing and controllable cost.

As shown in the figure, the roller assembly 1 further comprises two bushings 14, which are sequentially disposed between the roller 13 and the axle 12 along the axial direction, and the axle 12 is fixedly disposed on the roller seat 11. During assembly, the two bushings 14 can be respectively pressed into the shaft holes 131 of the roller 13, and then the wheel shaft 12 can be penetrated into the two bushings.

In this way, the rollers 13 are supported and rotatable relative to the axle 12, with bearing and rotation functions, by means of the rollers 13 bearing rolling support of the rotation of the concave chassis (not shown in the figures), i.e. bearing the rotational displacement of the component to be turned. Based on the arrangement of the bushings 14, rotational wear of the roller 13 can be avoided. The wheel shaft 12 in the scheme is a fixed wheel shaft, and the idler wheels 13 serving as driven wheels are matched to complete loading and unloading performance.

In other implementations, the bushing 14 may be a single, unitary bushing, or the bushing may be replaced with a needle bearing structure.

In order to improve the actuation performance of the roller assembly 1, further, the roller assembly 1 may further include an oil cup 15, please refer to fig. 3, 4 and 5, wherein fig. 4 is an axial sectional view of the roller assembly shown in fig. 1, and fig. 5 is an axial sectional view of the axle shown in fig. 3.

Correspondingly, the wheel axle 12 is provided with a distribution oil groove 121, a communication oil hole 122 and an oil cup mounting hole 123, wherein the distribution oil groove 121 is arranged on the outer surface of the wheel axle 12, and the distribution oil groove 121 extends to a position where the wheel axle 12 is matched with the two bushings 14; the oil cup mounting hole 123 is positioned at the shaft end of the wheel shaft 12 and is used for being fixedly mounted with the oil cup 15; the oil communication hole 122 is provided in the wheel shaft 12, and is provided between the oil cup mounting hole 123 and the oil distribution groove 121. When in use, lubricating oil is injected into the wheel shaft 12 through the oil cup 15, and can be sequentially conveyed to the bushing 14 through the communication oil hole 122 and the distribution oil groove 121, so that the lubrication function is achieved, and the phenomenon that the roller 13 is stuck and cannot rotate is avoided.

As shown in the drawing, the oil distribution groove 121 is formed to extend in the axial direction, and the communicating oil hole 122 is formed by communicating the communicating axial hole section and the radial hole section, so that the processing manufacturability is improved. In a specific implementation, the oil distribution groove 121 and the oil communication hole 122 may take different structural forms, as long as the lubricating oil can be delivered and distributed to the lubrication site.

In addition, the specific manner of securing the axle 12 may be determined as desired. As shown in fig. 2 to 5, the roller assembly 1 provided in this embodiment further includes a clamping plate 16 and a bolt, correspondingly, the shaft end of the axle 12 has a clamping groove 124, the clamping groove 124 is formed on the outer peripheral surface of the axle 12 outside the second mounting seat 112, and the groove width of the clamping groove 124 is adapted to the thickness of the clamping plate 16, so as to accommodate the clamping plate 16 to form an axial limit on the axle 12; meanwhile, mounting holes matched with the bolts are formed in the outer side surfaces of the clamping plate 16 and the second mounting seat 112, so that the clamping plate 16 is fixed on the second mounting seat 112 through the bolts, and further rotation limit of the wheel shaft 12 is formed through the clamping plate 16. In the whole, the wheel shaft 12 can be reliably and fixedly arranged on the roller seat 11, and the disassembly and assembly operations are convenient.

Of course, in a specific implementation, the number of the bolts and the threaded mounting holes adapted to the bolts may be determined according to the actual product design requirements, so long as the clamping plate 16 can be reliably fixed.

Further, the shaft end surfaces on both sides of the roller 13 are provided with convex rings 132, and the convex rings 132 are positioned at the hole edges of the shaft hole 131 to form axial gaps with the first mounting seat 111 and the second mounting seat 112 respectively so as to prevent rotation jamming.

The roller assembly described in the previous embodiments is a driven roller, and in other implementations, the driving roller may be formed based on a roller disposed on a roller mount. Referring to fig. 6, 7 and 8, fig. 6 is a schematic view of the overall structure of another roller assembly according to the embodiment, fig. 7 is a schematic view of another angle formed by the roller assembly shown in fig. 6, and fig. 8 is an exploded view of the roller assembly shown in fig. 6.

The roller assembly 2 comprises a roller seat 21, a wheel shaft 22 and a roller 23, wherein the roller seat 21 comprises a first mounting seat 211 and a second mounting seat 212 which are oppositely arranged at intervals, the roller 23 is sleeved on the wheel shaft 22, two ends of the wheel shaft 22 are respectively inserted into mounting holes of the first mounting seat 211 and the second mounting seat 212, and the roller 23 can rotate relative to the roller seat 21.

Similarly, two vertical plates 213 are fixedly arranged between the first mounting base 211 and the second mounting base 212 in this embodiment, so as to improve the strength of the basic bearing structure.

In this embodiment, the roller 23 is coaxially fixed to the axle 22, and the axle 22 is driven to rotate by the driving member 28 and drives the roller 23 to rotate. The two shoulders of the axle 22 are respectively pivoted in the mounting holes of the first mounting seat 211 and the second mounting seat 212, and the first end of the axle 22 is in transmission connection with the output end of the driving component 28. In this embodiment, the rollers 23 as driving wheels can drive the concave chassis to rotate to complete loading and unloading.

The bearing 24 is disposed in the mounting holes of the first mounting seat 211 and the second mounting seat 212, so as to ensure the rotation performance of the axle 22. Further, in order to further improve the actuation performance of the roller 23 and the axle 22, the roller assembly 2 may further include an oil cup 25, please refer to fig. 9 and 10, wherein fig. 9 is an axial cross-sectional view of the roller assembly shown in fig. 6, and fig. 10 is a schematic view of the axle shown in fig. 7.

Oil filling holes 214 are formed in the first mounting seat 211 and the second mounting seat 212, and the oil filling holes 214 are communicated to corresponding mounting holes so as to convey lubricating oil to the bearing 24 through the oil cup 25 or an external oil filling device, so that rotation clamping stagnation is prevented.

The coaxial fixation of the wheel 23 and the wheel axle 22 can be achieved in different ways, in this embodiment the wheel axle 22 is connected to the wheel 23 by means of a key 27. Here, the driving part 28 may be a motor or a hydraulic motor, and the output spline shaft 281 thereof may be adapted to a spline hole 221 formed at one end of the wheel shaft 22 to transmit driving force. The spline connection is simple in structure and easy to realize.

To further facilitate the assembly operation of the driving member 28, the roller assembly 2 further includes an adjustment seat 29 and a washer 210, please refer to fig. 8, 9, 10 and 11, wherein fig. 11 is a schematic view of the adjustment seat shown in fig. 8.

The center of the adjustment seat 29 has a through hole 291, and the output side of the driving member 28 is inserted into the through hole 291, and the driving member 28 and the adjustment seat 29 are fixed to the first mounting seat 211 by bolts. Further, in order to improve the adaptability of the axial assembly, a gasket 210 may be disposed between the adjusting seat 29 and the axle 22, and correspondingly, the inner wall of the through hole 291 of the adjusting seat 29 has a radially extending shoulder 292, and in the axial direction, the gasket 210 may be disposed between the shoulder 292 of the adjusting seat 29 and the first end of the axle 22, so as to adjust the axial gap therebetween as required, so as to avoid the influence of the axial play on the working stability of the roller assembly 2.

Of course, in a particular implementation, the number and thickness dimensions of the washers 210 may be determined according to actual assembly requirements to accommodate tolerance stack-up of the axial dimensions of the components.

In addition, the roller assembly 2 provided in this embodiment is provided with a sealing plate 26 at the side of the second end of the axle 22. Please refer to fig. 8, 9, 10 and 12, wherein fig. 12 is a schematic diagram of the sealing plate shown in fig. 8. The sealing plate 26 is fixed on the second mounting seat 212, and a mounting spigot 261 is disposed on the opposite side of the sealing plate 26 and the second mounting seat 212, and the mounting spigot 261 can be placed in a mounting hole of the second mounting seat 212, so as to avoid lubricating oil of an internal bearing from overflowing, and prevent dust in an external working environment from entering to affect the actuation performance of the bearing.

The roller assembly provided by the embodiment can be arranged on the roller supporting device which is adapted to the piggyback transport vehicle according to the requirement, so as to provide the roller assembly which actively drives the concave underframe to rotate and the roller assembly which is borne by the driven support according to the requirement. The configuration quantity of the roller assemblies 1 and 2 can be determined according to the overall design requirement of the product. It should be understood that it is within the scope of the claimed application as long as it is able to match the need for the concave chassis rotation to accomplish the loading and unloading capabilities.

It should be noted that, by way of example, the specific dimensions and proportional relationships of the constituent components of the roller shown in the drawings are not meant to limit the scope of the application. In other specific implementations, the roller may also adopt two or three or other multiple roller bodies, which are assembled in sequence along the axial direction. Compared with the prior art, the method has better manufacturability and controllable cost.

In addition, in the above embodiment, the functions of the driving component, the bearing, the oil cup, and the like are specifically implemented, which is not the core point of the present application, and those skilled in the art can implement them based on the prior art, so that the description thereof is omitted herein.

The foregoing is merely a preferred embodiment of the present utility model and it should be noted that modifications and adaptations to those skilled in the art may be made without departing from the principles of the present utility model, which are intended to be comprehended within the scope of the present utility model.

Claims (10)

1. The utility model provides a gyro wheel is constituteed for bear and wait to rotate the part, its characterized in that includes gyro wheel seat, shaft and gyro wheel, the gyro wheel seat includes first mount pad and the second mount pad that the interval set up relatively, the gyro wheel passes through the shaft hole suit is in on the shaft, the both ends of shaft are inserted respectively in the mounting hole of first mount pad with the second mount pad, just the gyro wheel can rotate for the gyro wheel seat.

2. The roller assembly of claim 1, wherein the roller mount further comprises two risers, two ends of the two risers being secured to the first mount and the second mount, respectively.

3. The roller assembly of claim 1, wherein the roller has two axial end surfaces with a collar located at the rim of the axle bore to form an axial gap with the first and second mounting seats, respectively.

4. A roller assembly according to any one of claims 1 to 3, further comprising two bushings arranged axially in sequence between the roller and the axle, the axle being fixedly arranged on the roller mount.

5. The roller assembly of claim 4, further comprising an oil cup, wherein the axle has a distribution oil sump, a communication oil hole, and an oil cup mounting hole; the distribution oil groove is formed in the outer surface of the wheel shaft, and extends to a position where the wheel shaft is matched with the two bushings; the oil cup mounting hole is positioned at the shaft end of the wheel shaft, and the oil cup is mounted and fixed in the oil cup mounting hole.

6. The roller assembly of claim 5, further comprising a clamping plate, wherein the shaft end of the wheel shaft is provided with a clamping groove, the clamping groove is formed in the outer peripheral surface of the wheel shaft outside the second mounting seat, and the clamping plate is placed in the clamping groove and is fixed on the second mounting seat through a threaded fastener.

7. A roller assembly according to any one of claims 1 to 3, further comprising a drive member, the two shoulders of the axle being pivotally connected to the mounting holes of the first and second mounting seats respectively, and the first end of the axle being in driving connection with the output end of the drive member.

8. The roller assembly of claim 7, further comprising a bearing, wherein the axle is pivotally coupled to the mounting holes of the first and second mounting blocks, respectively, via the bearing.

9. The roller assembly of claim 7, further comprising an adjustment seat and a washer, wherein a through hole is formed in a middle portion of the adjustment seat, wherein an output side of the driving member is inserted into the through hole, and the driving member, the adjustment seat and the first mounting seat are fixed by bolts; the inner wall of the through hole of the adjusting seat is provided with a convex shoulder formed by radial extension, and the gasket is arranged between the convex shoulder of the adjusting seat and the first end of the wheel shaft along the axial direction.

10. The roller assembly of claim 9, further comprising a sealing plate secured to the second mounting base on a side of the axle opposite the second end, and wherein a mounting spigot is provided on the sealing plate opposite the second mounting base and is received in a mounting hole in the second mounting base.