CN2206278Y

CN2206278Y - Combined chain wheel for elevator

Info

Publication number: CN2206278Y
Application number: CN 94242492
Authority: CN
Inventors: 林发泉
Original assignee: Individual
Current assignee: Individual
Priority date: 1994-08-23
Filing date: 1994-08-23
Publication date: 1995-08-30
Anticipated expiration: 2004-08-23

Abstract

The utility model discloses a combined chain wheel for elevators. A wheel edge is connected with a wheel core by a screw bolt, and the wheel core is connected with a wheel shaft by a bearing. Both ends of the wheel shaft are provided with maze lids so that lubricant oil is prevented from leaking and dust is prevented from invading. The utility model has the advantages of convenient maintenance and longer use period. The utility model extends the service life of the chain wheel of elevators and reduces cost.

Description

Combined chain wheel for elevator

The utility model relates to gig composite sprocket technical field, specifically, is the composite sprocket that uses for gig.

As everyone knows, original gig sprocket wheel, normally sprocket wheel rotates together synchronously with axle, occurs bearing during rotation easily and comes off, and the axle head wearing and tearing such as split off at phenomenon.And wheel rim often needs whole group to change, cost height, sprocket wheel weak point in common service life like this because long-term serious with the chain contact wear.

The purpose of this utility model is exactly the defective that overcomes original the sort of gig sprocket wheel, and design-calculated long gig composite sprocket in a kind of service life.

The utility model is to realize like this, chain wheel rim and core wheel adopt the form of split combination, the centre with Bolt Connection together, transferring axle by wheel does not change, axle head is fixed with flat key, when wheel rim is in operation the appearance wearing and tearing, only needing to change wheel rim gets final product, it is reasonably lubricated for wheel shaft can be obtained when moving, prevent the intrusion of dust, prolong the service life of wheel shaft, axle adopts the hollow head apply lubrication oil, bearing felt lid and labyrinth also are installed at the two ends of wheel shaft cover, with the leakage that prevents lubricating oil and the intrusion of dust.

The utility model is owing to adopt the form of combination split, having solved sprocket shaft bearing preferably comes off, the axle head wearing and tearing, problem such as fracture, and can prevent effectively that the phenomenons such as intrusion, leakage of oil of dust from taking place, and prolongs the service life of wheel shaft, in case wheel wear is bad when using the utility model, only need to change wheel rim, needn't change core wheel, and easy to maintenance.

Below with reference to accompanying drawing the utility model is further described:

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

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

In the drawings, 1 is flat key; 2 is flat bearing; 3 is support plate; 4 is screw; 5 is nut; 6 is bolt; 7 is nut; 8 is spring washer; 9 is wheel rim; 10 is core wheel; 11 is wheel shaft; 12 is bearing; 13 is stop washer; 14 is the garden nut; 15 are the bearing felt lid; 16 is filler; 17 is oil sealing; 18 is bolt; 19 is nut; 20 are the labyrinth lid; 21 is bolt; 22 are the hole of changing oil.

As can be seen from Figure 1, labyrinth lid 20 is pressed on the bearing felt lid 15, the labyrinth lid passes through bolt, nut 18,19 are fixed on the wheel shaft 11, be filled with filler 16 and oil sealing 17 in the space between bearing felt lid 15 and wheel shaft 11 in case the leakage of lubricating oil, circle nut 14 is near on the thrust washer 13, thrust washer 13 is pressed on again on the bearing 12, the other end of bearing 12 is fixed on the wheel shaft 11, the outside face of bearing 12 contacts with the inside face of core wheel 10, wheel rim 9 passes through bolt again, nut, spring washer 6,7,8 are linked together with core wheel, in order to make the bearing 12 that is fixed on wheel shaft 11 easy to lubricate, central authorities at wheel shaft 11 also are drilled with a filler port, at ordinary times during non-refuelling with bolt 21 lockings.

Embodiment: when wheel rim and chain contact position just can be designed to wheel rim form among Fig. 2 as required, its structure is consistent with said structure.

Claims

1, a kind of gig composite sprocket, mainly form by wheel shaft, bearing, wheel rim etc., it is characterized in that: wheel rim (9) and core wheel (10) are with Bolt Connection together, core wheel (10) is linked together by bearing (12) and wheel shaft (11) again, and bearing felt lid (15) and labyrinth lid (20) is installed at the two ends of wheel shaft (11).