CN218279073U - Fixed shaft running mechanism of compact shelf - Google Patents

Abstract

A fixed shaft walking mechanism of a compact shelf comprises a frame, wherein two parallel wheel shafts are arranged in the frame, the wheel shafts are fixed with the frame, at least two walking wheels are arranged on each wheel shaft, each walking wheel comprises a roller matched with a ground track and a transmission gear fixed with the roller, a bearing is arranged in an inner hole of each walking wheel, the bearing is sleeved on the wheel shaft, and the walking wheels can rotate relative to the wheel shafts. The utility model discloses a shaft is fixed with the axle bed, and the drive gear and the gyro wheel of walking wheel are even as an organic whole, and motor or rocking handle pass through drive chain direct drive walking wheel, make the walking wheel rotatory around the shaft to drive intensive removal, more laborsaving when can reduce the demand to motor output or hand like this, the walking wheel is also difficult for blocking simultaneously and dies. Has the advantages of simple structure and low cost, and is suitable for various compact shelves.

Description

Fixed shaft running mechanism of compact shelf

Technical Field

The utility model relates to a movable compact shelf for storing data, books and the like, in particular to a fixed shaft travelling mechanism of the compact shelf.

Background

The movable compact shelf is characterized in that a double-column double-sided fixing frame is reformed, and a shaft wheel is arranged on a base of the double-column double-sided fixing frame, so that the movable compact shelf can linearly move along a small guide rail paved on the ground, and a plurality of shelves can be closed or separated and assembled according to specific needs, thereby being a movable compact file container. The bottom of the movable compact shelf is provided with a travelling mechanism, but in the travelling mechanism in the current market, wheels and shafts are fixed, one end of each shaft is provided with a transmission gear, the transmission gear drives the whole shaft and the wheels to rotate together, and thus, the single side applies force to the shafts and is easy to block.

China patent office is published in 2020, 3 months and 31 days, and patent number is 201920823506.0's compact shelving bearing operation device, including chassis and operation mechanism, operation mechanism includes iron wheel, first nut and second nut, the fixed welding in iron wheel middle part has the loop bar, annular array has seted up four sets of spacing grooves on the loop bar inner wall, the pivot corresponds the fixed welding in position with the spacing groove and has spacing, the loop bar slides and cup joints in the pivot, first nut and second nut screw thread are installed on the screw thread portion of iron wheel both sides, equal fixed welding has solid fixed ring on one side that first nut and second nut are relative, the recess has been seted up on the iron wheel, the iron wheel lower part is provided with the guide rail, the one end of pivot is run through and is connected in chassis and external transmission equipment. The iron wheel and the loop bar of the device are limited in radial rotation, and can slightly move in the axial direction to avoid dead locking, so that the actual effect is not ideal.

Disclosure of Invention

The utility model aims to overcome the defects of the prior art and provide a fixed shaft walking mechanism of a compact shelf which is not easy to block when moving.

In order to realize the purpose, the utility model adopts the technical proposal that: the fixed shaft walking mechanism of the compact shelf comprises a frame, wherein two parallel wheel shafts are arranged in the frame, the wheel shafts are fixed with the frame, at least two walking wheels are arranged on each wheel shaft, each walking wheel comprises a roller matched with a ground track and a transmission gear fixed with the roller, a bearing is arranged in an inner hole of each walking wheel, the bearing is sleeved on the wheel shaft, and the walking wheels can rotate relative to the wheel shafts.

The frame on install the axle bed, be equipped with the arc on the axle bed and cave in, the shaft place in the arc, be provided with the locking lid above the axle bed, when locking lid links to each other with the axle bed, can fix the shaft in the arc of axle bed is sunken.

The frame is provided with two beams, and the shaft seat is arranged on the beams.

And a snap spring is arranged in an inner hole of the travelling wheel and is abutted against the end surface of the bearing.

The transmission gear and the roller of the travelling wheel are cast integrally.

And a transmission gear of the travelling wheel is driven to rotate by a transmission chain.

The utility model discloses a shaft is fixed with the axle bed, and the drive gear and the gyro wheel of walking wheel are even as an organic whole, and motor or rocking handle pass through drive chain direct drive walking wheel, make the walking wheel rotatory around the shaft to drive intensive removal, more laborsaving when can reduce the demand to motor output or hand like this, the walking wheel is also difficult for blocking simultaneously and dies. Has the advantages of simple structure and low cost, and is suitable for various compact shelves.

Drawings

Fig. 1 is a schematic structural view of the present invention.

Fig. 2 is a cross-sectional view of the travelling wheel of the utility model.

Fig. 3 is a schematic view of the fixing and mounting of the wheel axle of the present invention.

Detailed Description

As shown in fig. 1, the utility model relates to a fixed shaft running gear of compact shelf, which comprises a frame 30, two parallel wheel shafts 20 are arranged in the frame 30, and the wheel shafts 20 are fixed with the frame 30. At least two travelling wheels 10 are arranged on each wheel shaft 20, each travelling wheel 10 comprises a roller 12 matched with a ground track and a transmission gear 11 fixed with the roller 12, a bearing 13 is arranged in an inner hole of each travelling wheel 10, the bearing 13 is sleeved on the wheel shaft 20, and the travelling wheels 10 can rotate relative to the wheel shafts 20.

As shown in fig. 2, a circlip 14 is installed in an inner hole of the road wheel 10, and the circlip 14 abuts against an end surface of the bearing 13 to prevent the bearing 13 from moving axially. The transmission gear 11 and the roller 12 of the travelling wheel 10 are integrally cast. The transmission gear 11 of the travelling wheel 10 is driven by a transmission chain to rotate. Therefore, the requirement on the output power of the motor can be reduced, or the hand-cranking is more labor-saving, and meanwhile, the walking wheel 10 is not easy to block.

As shown in fig. 3, the frame 30 is provided with two beams 31, the beam 31 is provided with a shaft seat 50, the shaft seat 50 is in a half-frame shape, the shaft seat 50 is provided with an arc-shaped recess 51, the axle 20 is placed in the arc-shaped recess 51, the locking cover 40 is arranged above the shaft seat 50, and when the locking cover 40 is connected with the shaft seat 50, the axle 20 can be fixed in the arc-shaped recess 51 of the shaft seat 50. The locking cover 40 and the axle seat 50 are fixed by a bolt 60 and a nut 61, and in order to increase friction force, a rubber sheet can be placed in the arc-shaped recess 51 of the axle seat 50, so that the locking cover 40 and the axle seat 50 are connected and the rear axle 20 cannot rotate.

The utility model discloses a shaft 20 is fixed with axle bed 50, and the drive gear 11 and the gyro wheel 12 of walking wheel 10 are even as an organic whole, and motor or rocking handle pass through drive chain direct drive walking wheel 10, make walking wheel 10 rotatory around shaft 20 to it removes to drive intensive, can reduce like this more laborsaving when demand to motor output or hand, and walking wheel 10 is also difficult the card extremely simultaneously. Has the advantages of simple structure and low cost, and is suitable for various compact shelves.

Claims (6)

1. A fixed shaft travelling mechanism of a compact shelf comprises a frame, wherein two parallel wheel shafts are arranged in the frame, and the fixed shaft travelling mechanism is characterized in that the wheel shafts are fixed with the frame, at least two travelling wheels are arranged on each wheel shaft, each travelling wheel comprises a roller matched with a ground track and a transmission gear fixed with the roller, a bearing is arranged in an inner hole of each travelling wheel, the bearing is sleeved on the wheel shaft, and the travelling wheels can rotate relative to the wheel shafts.

2. The movable rack walking mechanism for fixed shafts of movable racks according to claim 1, wherein the frame is provided with a shaft seat, the shaft seat is provided with an arc-shaped recess, the wheel shaft is placed in the arc-shaped recess, and a locking cover is arranged above the shaft seat and can fix the wheel shaft in the arc-shaped recess of the shaft seat when the locking cover is connected with the shaft seat.

3. The fixed shaft travelling mechanism of the compact shelf according to claim 2, wherein the frame is provided with two beams, and the shaft seats are mounted on the beams.

4. The fixed shaft travelling mechanism of the compact shelf according to claim 1, wherein the inner hole of the travelling wheel is provided with a snap spring which is abutted against the end surface of the bearing.

5. The fixed shaft travelling mechanism of the compact shelf according to claim 1, wherein the transmission gear and the roller of the travelling wheel are cast integrally.

6. The fixed shaft travelling mechanism of the compact shelving as claimed in claim 1, wherein the transmission gear of the travelling wheel is driven to rotate by a transmission chain.

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