CN210026912U

CN210026912U - Vertical vibration-damping universal wheel

Info

Publication number: CN210026912U
Application number: CN201920619196.0U
Authority: CN
Inventors: 朱海燕; 胡华涛; 王超文; 尹必超; 朱志和
Original assignee: East China Jiaotong University
Current assignee: East China Jiaotong University
Priority date: 2019-04-30
Filing date: 2019-04-30
Publication date: 2020-02-07
Anticipated expiration: 2029-04-30

Abstract

The utility model discloses a vertical damping universal wheel comprises spring pressure pad, spring plumbing pole, spring baffle, spring support pin, support, the big packing ring of support, the big bolt of support, truckle packing ring, truckle bolt, truckle mounting panel, truckle, rubber support pad, the little packing ring of support, the little bolt of support, mounting panel, thrust ball bearing, tapered roller bearing, deep groove ball bearing. The device has adopted three kinds of different bearings, can bear great load in diversified, has improved life, and has adopted elastic element, can cushion to a great extent and inhale the shake.

Description

Vertical vibration-damping universal wheel

Technical Field

The utility model relates to a damping universal wheel especially relates to an universal wheel of vertical damping effect.

Background

The casters, commonly referred to collectively as casters, are configured to provide 360 degrees of rotation in the horizontal plane. The truckle contains activity truckle and truckle, and truckle does not have revolution mechanic, can not horizontal plane internal rotation, and rotary motion can only be done to the wheel, and activity truckle exists revolution mechanic, can enough horizontal plane internal rotation, and rotary motion can also be to the wheel. The casters with the two structures are often matched for use, a pair of fixed casters is adopted for a front wheel pair of a shopping cart used in a supermarket, and a pair of movable casters is adopted for a rear wheel pair of the shopping cart used in the supermarket. The universal wheel can be used in industries such as factories, workshops, businesses, restaurants and the like, and is mainly used as a tool cart, such as a workshop trailer, a supermarket shopping cart, a medical cart and the like, so that the universal wheel is wide in application occasions.

The service life of the universal wheel on the market is short, because the universal wheel fails due to excessive elastic deformation when bearing excessive load or unbalance load. Based on the reason, the universal wheel with the vibration reduction function is designed, the device uses the elastic element stressed vertically, the vibration absorption and buffering effect can be achieved, and the device is used for a thrust ball bearing, a tapered roller bearing and a deep groove ball bearing, so that the effective rotation of parts and the uniform distribution of loads are guaranteed, and the service life of the device is prolonged greatly.

SUMMERY OF THE UTILITY MODEL

In order to solve the problem that the conventional universal wheel is short in service life and meets the requirements of high bearing capacity, long service life and practicability, the utility model provides a vertical vibration damping universal wheel, a rubber supporting pad (13) adopted by the device can relieve a larger vertical load to a certain extent, if the device bears an overlarge load, the rubber supporting pad (13) is compressed to a certain extent and can be contacted with a spring pressing pad (1), and a spring (3) with very large vertical rigidity can relieve the overlarge vertical load; the thrust ball bearing (17) adopted by the device can enable the mounting plate (16) and the bracket (6) to effectively rotate and can bear larger shaft load; the tapered roller bearing (18) adopted by the device can bear radial force and axial force; the deep groove ball bearing (19) adopted by the device can bear larger radial load, and the device has enough service life when bearing larger vertical load or unbalance load through the matching use of the three different bearings.

Compared with the background art, the utility model, the beneficial effect who has is:

(1) the universal wheel of general function does not adopt elastic element, is bearing too big vertical load or unbalance loading piece, and the load between the part can not effectual transmission truckle, and takes place plastic deformation, the utility model discloses an adopted elastic element, can alleviate too big vertical load or unbalance loading in vertical direction.

(2) The universal wheel of general function does not adopt the bearing, and rotatory process takes place the card easily and dies, the utility model discloses a thrust ball bearing can guarantee the device's effective rotation, also can bear great vertical load. Compare with the universal wheel of general function, the utility model discloses a tapered roller bearing and deep groove ball bearing for the device can bear vertical unbalance loading.

Drawings

Fig. 1 is the structure assembly schematic diagram of the present invention.

Fig. 2 is a transverse partial sectional view of the present invention.

Fig. 3 is a vertical partial sectional view of the present invention.

Reference numerals: the device comprises a spring pressing pad (1), a spring hanging rod (2), a spring (3), a spring baffle (4), a spring supporting pin (5), a support (6), a support large gasket (7), a support large bolt (8), a caster gasket (9), a caster bolt (10), a caster mounting plate (11), a caster (12), a rubber supporting pad (13), a support small gasket (14), a support small bolt (15), a mounting plate (16), a thrust ball bearing (17), a tapered roller bearing (18) and a deep groove ball bearing (19).

Detailed Description

The installation process of the device comprises the following steps: the outer ring of the deep groove ball bearing (19) is connected with the inner ring of a caster (12) in interference fit, and then is connected with a caster mounting plate (11) through a caster bolt (10) and a caster gasket (9), wherein the caster bolt (10) is connected with the inner ring of the deep groove ball bearing (19) in interference fit; the caster mounting plate (11) is connected with the bracket (6) through a bracket big bolt (8) and a bracket small bolt (15), wherein a bracket big gasket (7) and a bracket small gasket (14) are arranged between the bracket big bolt (8) and the bracket small bolt (15) and the bracket (6); the spring pressing pad (1) has a certain height under the action of the spring (3) and the spring baffle (4), and the spring vertical rod (2) is connected with the spring supporting pin (5) through clearance fit; the outer rings of the thrust ball bearing (17) and the tapered roller bearing (18) are connected with the inner hole of the bracket (6) through interference fit, and the mounting plate (16) is connected with the inner rings of the thrust ball bearing (17) and the tapered roller bearing (18) through interference fit.

The working mode of the device is as follows: the device is fixed at the bottom of the tool car through screws, and when the tool car is subjected to a large load, the mounting plate (16) compresses the rubber supporting pad (13) until the rubber supporting pad is contacted with the spring pressing pad (1); the built-in thrust ball bearing (17) and the tapered roller bearing (18) can ensure that the bracket (6) can effectively rotate and can bear larger vertical load; the deep groove ball bearing (19) can distribute load to the caster (12) uniformly.

The present invention has been described above with reference to the accompanying drawings, and it is obvious that the present invention is not limited by the above-mentioned manner, and various modifications made by the method concept and technical solution of the present invention or directly applied to other occasions without modification are all within the protection scope of the present invention.

Claims

1. The vertical vibration reduction universal wheel consists of a spring pressing pad (1), a spring vertical rod (2), a spring (3), a spring baffle (4), a spring supporting pin (5), a support (6), a support large gasket (7), a support large bolt (8), a caster gasket (9), a caster bolt (10), a caster mounting plate (11), a caster (12), a rubber supporting pad (13), a support small gasket (14), a support small bolt (15), a mounting plate (16), a thrust ball bearing (17), a tapered roller bearing (18) and a deep groove ball bearing (19); it is characterized in that the mounting plate (16) and the bracket (6) are provided with rubber supporting pads (13); the caster wheel mounting plate (11) is connected with the bracket (6) through a bracket big bolt (8) and a bracket small bolt (15).

2. The vertically damped universal wheel according to claim 1, wherein: two springs (3) are installed on the spring baffle (4), vertical load is relieved through compression motion of the springs (3), the thrust ball bearing (17) is arranged in the support (6) in a built-in mode, and the mounting plate (16) can rotate within a horizontal plane by 360 degrees through the thrust ball bearing (17).

3. The vertically damped universal wheel according to claim 1, wherein: the tapered roller bearing (18) is arranged in the bracket (6), the outer ring of the deep groove ball bearing (19) is connected with the inner ring of the caster (12) through interference fit, and the caster bolt (10) is connected with the caster washer (9) and the caster mounting plate (11).