CN201021065Y

CN201021065Y - Barrow drum barrel

Info

Publication number: CN201021065Y
Application number: CNU2007200787258U
Authority: CN
Inventors: 谢刚贵
Original assignee: Individual
Current assignee: Individual
Priority date: 2007-03-09
Filing date: 2007-03-09
Publication date: 2008-02-13
Anticipated expiration: 2017-03-09

Abstract

The utility model discloses a brake drum of a trolley wheel combination section. A traditional brake drum sleeve is prolonged, and a bearing locating bushing (7) and a bearing locating clamping ring (11) are arranged in a brake drum body, to form a bearing clamping structure. The utility model overcomes the deficiencies that the axial friction between the inner ring and the outer ring of the bearing is large, and the dustproof performance is not good in the prior art, thus being widely applied to the trolleys.

Description

The hand barrow Decorative drum

Technical field

The utility model relates to rickshaw Axle bearing cover, the Decorative drum of especially a kind of trolley wheel joint portion.

Background technology

Existing hand barrow Decorative drum, also the chauffeur axle sleeve is mainly used in bearing set, the affixed spoke of taking turns, and axletree is set in the Decorative drum, realized the flexible connection of wheel and axletree, as shown in Figure 1, existing Decorative drum is generally upright " worker " word shape, and bearing is placed in the protruding part at Decorative drum two ends, and limit with packing ring 2, axletree 1 places wherein, and with nut 5 and locking pin 6 location, realizes the assembling of wheel on the car body.But in actual use, this Decorative drum can not prevent that foreign matter such as mortar, grit etc. from damaging bearing, simultaneously in order to guarantee the normal rolling of bearing, nut can not press packing ring, if swinging with the clamping nut limiting wheel, then will cause bearing inner ring to outside incorgruous stressed of inner and outer rings, not only friction force increases, and enters the back or lubricated ineffective situation lower bearing very easily damages at foreign matter.

The utility model content

The utility model has overcome the deficiencies in the prior art, provides a kind of simple in structure, energy good fix bearing, the hand barrow Decorative drum that protection against dust is good.

For realizing above-mentioned technical goal, the utility model adopts following technical scheme: the hand barrow Decorative drum that is upright " worker " font, the Decorative drum middle part is a bearing carrier ring for beam barrel, both ends, be provided with bearing positioning adapter 7 and end ring 13 in the flower-drum cylindrical shell, end ring 13 inside protrusions form bearing location snap ring 11, the external diameter of bearing location snap ring 11 is less than the internal diameter of joining bearing 3 outer shrouds, and bearing carrier ring covers end ring 13 fully.

Further technical scheme is: end ring is a concave shaped.

Further technical scheme is: end ring 13 is oil seal collar, is made of spill inner shield ring 9, anti-dust seal 10, the outer back-up ring 8 of spill.

Further technical scheme is: bearing carrier ring covers end ring 13 back extend outwards fully and goes out extension cover 12.

Compared with prior art location that the utility model can be good and protection bearing; bearing location snap ring 11 matches with bearing positioning adapter 7 and forms bearing chucking structure; and 11 of the snap rings in location contact with bearing inner ring; overcome the defective that existing hand barrow Decorative drum can't the close positioning bearing; reduced the generation of bearing inner and outer ring axial rub; anti-dust seal; the extension shaft bearing sleeve; the design of overlapping of extending has effectively reduced the possibility that foreign matter enters bearing; guarantee the not emulsification of bearing lubrication grease simultaneously; do not pollute, relatively independent; long-term lubricating bearings in the osed top space.

Description of drawings

Fig. 1 is the structural representation of existing hand barrow Decorative drum;

Fig. 2 is the structural representation of the utility model embodiment.

The specific embodiment

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

As shown in Figure 2, the end ring 13 that is provided with bearing positioning adapter 7 in the flower-drum cylindrical shell and constitutes by spill inner shield ring 9, anti-dust seal 10, the outer back-up ring 8 of spill, bearing location snap ring has been served as at the recessed position 11 of end ring 13, this recessed position 11 is identical with the bearing inner ring external diameter, bearing carrier ring 4 has not only covered end ring fully, and extend outwards goes out extension cover 12, whole Decorative drum structure left-right symmetric.

Bearing location snap ring matches with bearing positioning adapter 7, and during use, Decorative drum one end is pressed on the outer end spill flat portion of concave bottom of back-up ring 8 outward with nut 5, and what the other end abutted against axletree answers form point 14, has promptly realized the axial location to bearing.

Claims

1. hand barrow Decorative drum, integral body is upright " worker " font, the Decorative drum middle part is a bearing carrier ring for beam barrel, both ends, it is characterized in that being provided with in the flower-drum cylindrical shell bearing positioning adapter (7) and end ring (13), end ring (13) inside protrusions forms bearing location snap ring (11), the external diameter of bearing location snap ring (11) is less than the internal diameter of joining bearing (3) outer shroud, and bearing carrier ring covers end ring (13) fully.

2. hand barrow Decorative drum according to claim 1 is characterized in that end ring (13) is concave shaped.

3. as hand barrow Decorative drum as described in the claim 2, it is characterized in that end ring (13) is an oil seal collar, constitute by spill inner shield ring (9), anti-dust seal (10), the outer back-up ring (8) of spill.

4. hand barrow Decorative drum according to claim 1 is characterized in that bearing carrier ring covers end ring (13) the back extend outwards cover (12) that goes out to extend fully.