CN2654385Y

CN2654385Y - Waterproof castor

Info

Publication number: CN2654385Y
Application number: CN 200320107086
Authority: CN
Inventors: 李中云
Original assignee: Individual
Current assignee: Individual
Priority date: 2003-11-13
Filing date: 2003-11-13
Publication date: 2004-11-10
Anticipated expiration: 2013-11-13

Abstract

The utility model relates to a rainproof universal wheel, comprising a wheel carrier, a universal central shaft and a rotary wheel, wherein the universal central shaft is connected with the wheel carrier and the rotary wheel and supports the universal turning of the rotary wheel, the utility model is characterized in that the wheel carrier comprises a bearing box, a turning bearing and an end cover, wherein an O-shape sealing ring is arranged between the end cover and the bearing box; the upper section of the universal central shaft is a shaft core and the lower section is a support; the turning bearing is arranged on the shaft core and is fixed in the bearing box of the wheel carrier; the support is connected with the rotary wheel and the connecting parts comprise a wheel shaft, a shaft housing and a bearing; a labiate sealing ring is arranged between the rotary wheel, the bearing and the shaft housing respectively. The utility model has the advantages of reasonable and compact conjugation of the parts, convenient maintenance and none working play, and prolongs the service life, eliminates the working noise, optimizes the working environment and improves the working quality.

Description

A kind of waterproof type cardan wheel

Technical field

The utility model relates to a kind of parts of vehicle fitting, specifically a kind of waterproof type cardan wheel.

Background technology

We know that cardan wheel extensively applies to all trades and professions as daily operation necessity at present.The CN2477421Y patent specification discloses a kind of like this hand barrow cardan wheel, its basic structure comprises runner, universal center shaft and steering bearing, runner is installed in the shaft support of universal center, steering bearing passes the axle core on the universal center shaft, but this cardan wheel poor sealing, be not suitable for using under special circumstances, as at the higher underwater work of the potential of hydrogen of chemical industry, marine industry.The cardan wheel that is fit to operation in such cases is at present domestic still blank, makes a general survey of 13 in the whole nation well-known cardan wheel producer, and this type of can reach the product of specific (special) requirements all not to have production.According to using producer's reflection: common cardan wheel uses in the higher water of potential of hydrogen, life-span less than one month.And invest hugely, maintenance trouble also delays production.Concerning special industry; the shortcoming of common cardan wheel is: structure is bad; most universal center shaft and wheel shaft are respectively support bolts; the gap is big, rock during work easy to wear, the big environment that influences of noise; there is not sealing and permeable; vital part is not had registration device and safety method, cause workmanship to descend, so that short-lived.

Summary of the invention

Technical problem to be solved in the utility model is to overcome above-mentioned the deficiencies in the prior art, provides a kind of simple in structure, use, easy to maintenance, good airproof performance, working stability, the waterproof type cardan wheel of long service life.

The technical scheme in the invention for solving the above technical problem is: a kind of waterproof type cardan wheel, include wheel carrier, universal center shaft and runner, universal center shaft connects wheel carrier and runner and supports the universal rotation of runner, it is characterized in that: wheel carrier comprises bearing box, steering bearing and end cap, between coincideing, end cap and bearing box establish O-ring seals, the top of universal center shaft is a core, the lower part is a support, on the axle core steering bearing is installed, be fixed in the bearing box of wheel carrier, support is connected with runner, and its attaching parts comprises wheel shaft, axle sleeve and bearing are at runner, bearing, shaft room is provided with lip-type packing.

Three steering bearings in upper, middle and lower are arranged in the wheel carrier of the present utility model, and wherein upper and lower steering bearing is a surface bearing, the swing of actuating spindle core, and intermediate steering shaft holds and is thrust baring, and the control runner is done universal rotation.For anti-limited slip wheel upper and lower, left and right play, be provided with axle sleeve at the runner two ends, stepped axle core end is provided with circular nut.

The utility model is owing to adopt above technical scheme, against existing technologies, each part of the utility model cooperates rationally compact, good airproof performance, use, easy to maintenance, there is not any play during work, good stability has effectively prolonged service life, the noiselessness of running own, optimize working environment, improved workmanship.

Description of drawings

Below in conjunction with accompanying drawing the utility model is further specified.

Fig. 1 is a structural representation of the present utility model.

Fig. 2 is that part sectional view is looked on the left side of Fig. 1.

Fig. 1, each label is respectively in 2: 1. upper end cover, 2.O shape seal ring, 3. circular nut is 4. gone up steering bearing, 5. bearing box, 6. intermediate steering shaft holds, and 7. bottom end cover 8. descends steering bearing, 9. universal center shaft, 10. runner, 11. lip-type packings, 12. axle sleeves, 13. nuts, 14. wheel shafts.15. bearing.

The specific embodiment

A kind of waterproof type cardan wheel of the utility model as can be seen from Fig. 1,2 mainly is made up of wheel carrier, universal center shaft 9 and runner 10 3 parts, and universal center shaft 9 connects wheel carrier and runners 10 and supports the universal rotation of runner 10.Wheel carrier comprises a bearing box 5, upper, middle and lower steering bearing 4,6,8 and end cap 1,7 up and down, upper, middle and lower steering bearing 4,6,8 in the bearing box 5, be installed in successively respectively on the axle core on universal center shaft 9 tops, wherein going up steering bearing 4 and following steering bearing 8 is surface bearing, the swing of actuating spindle core, intermediate steering shaft holds 6 and is thrust baring, the control wheel body is done universal running, thereby reaches moving equilibrium, turns to freely.Between upper and lower end cap 1,7 and bearing box 5 coincide, establish O-ring seals 2, can prevent that water from immersing, effectively avoided the erosion of water, prolonged service life upper, middle and lower steering bearing 4,6,8.

Universal center shaft 9 is made up of circular nut 3, axle core and support, play and connect and supporting role, its axis core is stepped, upper, middle and lower steering bearing 4,6,8 is housed respectively on it, the top is by circular nut 3 lockings, be fixed in the bearing box 5 of wheel carrier, support connects and supports the runner 10 of its underpart.

Runner 10 is connected in the support of universal center shaft 9 by wheel shaft 14, axle sleeve 12, bearing 15, and wheel shaft 14 two ends outside support can guarantee that by nut 13 appropriateness lockings runner 10 freely rotates.Be provided with lip-type packing 11 at runner 10, bearing 15 and 12 on axle sleeve, play preventing the water logging corrosion attack, can ensure the normal operation of vital part effectively.Runner 10 is no upper and lower, left and right play under the effect of the axle sleeve 12 at its two ends and axle core end circular nut 3, has played positioning action preferably, and running is stablized not easy to wearly during work, and noise is little, has reduced environmental pollution.

The utility model is simple in structure, use, easy to maintenance, and running is stable, and closed type is good, and its sealing arrangement can prevent the water logging corrosion by actv., has ensured the normal operation of vital part, is suitable in particular cases using, as chemical industry, marine industry.

Claims

1. waterproof type cardan wheel, include wheel carrier, universal center shaft and runner, universal center shaft connects wheel carrier and runner and supports the universal rotation of runner, it is characterized in that: wheel carrier comprises bearing box, steering bearing and end cap, between coincideing, end cap and bearing box establish ○Xing Mifengquan, the top of universal center shaft is a core, the lower part is a support, on the axle core steering bearing is installed, be fixed in the bearing box of wheel carrier, support is connected with runner, and its attaching parts comprises wheel shaft, axle sleeve and bearing, is provided with lip-type packing at runner, bearing, shaft room.

2. waterproof type cardan wheel according to claim 1, it is characterized in that: three steering bearings in upper, middle and lower are arranged in the wheel carrier, and wherein upper and lower steering bearing is a surface bearing, the swing of actuating spindle core, intermediate steering shaft holds and is thrust baring, and the control runner is done universal running.

3. waterproof type cardan wheel according to claim 1 is characterized in that: the runner two ends are provided with axle sleeve.

4. waterproof type cardan wheel according to claim 1 is characterized in that: the axle core is stepped, and its end is provided with circular nut.