CN2438867Y

CN2438867Y - Crankshaft box bearing gap regulator for press

Info

Publication number: CN2438867Y
Application number: CN 00250389
Authority: CN
Inventors: 萧义明
Original assignee: Individual
Current assignee: Individual
Priority date: 2000-09-04
Filing date: 2000-09-04
Publication date: 2001-07-11
Anticipated expiration: 2010-09-04

Abstract

The utility model relates to an adjusting device of a crank shaft box of a bearing gap. The utility model is formed by the method that the point of an outer axial face for pulling a bearing in a front bearing seat is additionally provided with a stopping block of the bearing, and an adjusting screw penetrating from the outer part through a bearing seat body abuts on the center face of the stopping block. Hence, the adjusting screw of the utility model is adjusted externally to push the stopping block of the bearing and then to push the bearing, and an axial gap of a front and a back bearings in the crank box can obtain properly adjustment so as not to generate a gap to cause the bearing to damage; the utility model has the advantages that noise is reduced, product life is extended, a practical purpose can be achieved.

Description

Air compressor crankcase bearing play regulating device

The utility model relates to a kind of air compressor crankcase bearing play regulating device.

In air compressor (COMPRESSOR) structure, the action of piston is by the crankshaft in the belt pulley drive crankcase, be transformed into straight line motion by rotation motion, and crankshaft wherein is to pull out bearing by pushing away in the diaxon bearing of front and back firmly to support, therefore it is very important to push away the gap adjustment of pulling out bearing, when air compressor uses day long afterwards, this front and back two bearings all can produce axial clearance because of wearing and tearing, if suitably do not adjust, then can produce noise because of the loosening damage of bearings that makes, and thereby reduce life of product, present known adjustment structure, be that default multiple layer liner is adjusted on the diaxon bearing of utilization front and back, only a kind of at last balance design can't reach effective and suitable adjustment effect.

By shown in Figure 2, front-end bearing pedestal 22 commonly used is to be fixed on crankcase 20 bodies across liner 23, the liner 23 general multiple layer thin slice assemblying bodys that adopt, traditionally, pushing away the gap of pulling out bearing 24 when assembling is to lean on the thin slice liner of different-thickness to make up adjustment, when very wasting the rigger, and with the passing of time make built-in pushing away pull out bearing 24 and produce when loosening when using, promptly tear thin slice from level to level one by one and make the less thick of liner 23 by these liner 23 places, make front-end bearing pedestal 22 to intrinsic displacement, adjust the axial clearance of front and back diaxon bearing by this and return back to former steady state, this kind adjusted structure and had following shortcoming at least:

When 1, adjusting, must separate whole front-end bearing pedestal 22 and begin for it, operate comparatively time-consuming;

2, liner 23 is multiple layer thin slice assemblying bodys, each layer thin slice has certain minimum thickness restriction, if the design of each layer sheet thickness is bigger, then can't suitably adjust than precision-fit axial clearance, and if each layer sheet thickness design is less, it is wayward again to remove the number of plies.

3, the forward displacement amount of desire adjustment is not only wayward, and must gradually test it deeply one by one, and each test must begin for it by front-end bearing pedestal 22 of dismounting, it is not frequent adjusting operation, cause suitable trouble, and adjust operation and must not neglect, if noise then appears in precision inadequately immediately, damage of bearings and life of product reduce.

Main purpose of the present utility model is to provide a kind of air compressor crankcase bearing play regulating device, be to utilize the simple and easy spiral shell that exposes to the outside adjustment screw of front-end bearing pedestal moving, directly promote to be located at a bearing thrust piece of this front-end bearing pedestal inside, and and then promote and bearing to be adjusted that this bearing thrust piece joins so that carry out simple and easy adjustment.

A purpose more of the present utility model is to provide a kind of air compressor crankcase bearing play regulating device, it is to utilize the outside one simple and easy non-section type spiral shell of adjusting screw to move displacement amount, make it to convert to the axial promotion displacement amount of inner more accurate and non-section type, and make bearing to be adjusted be had the adjustment effect of appropriate amount.

For achieving the above object, the utility model is achieved through the following technical solutions: a kind of air compressor crankcase bearing play regulating device, crankcase inside in the air compressor structure is provided with a crankshaft, these crankshaft two ends are set up on the bearing support that the crankcase rear and front end is provided with, it is characterized in that: this front-end bearing pedestal body is deepened front-end bearing pedestal inside, back and is pushed away the outer axial vane surface place of pulling out bearing and establish a bearing thrust piece for the ccontaining circular groove hole of pulling out bearing that pushes away, and thrust block pulls out bearing and all is placed in the circular groove hole of front-end bearing pedestal body with pushing away; This bearing thrust piece is and pushes away the discoid body that pulls out bearing corresponding circle footpath size and have suitable thickness, burnishing surface directly relies on and pushes away the outer axial vane surface that pulls out bearing in it, is provided with one in the shaft core position place of front-end bearing pedestal and adjusts screw and directly contact outer burnishing surface in this bearing thrust piece; This adjustment screw mat relation of screwing togather wears the front-end bearing pedestal body and exposes.

This adjustment screw is that interior hexagonal is adjusted screw, and it is that the mat relation of screwing togather wore this front-end bearing pedestal body and exposes, and by a hold-doun nut by being locked outward.

The bearing thrust piece is provided with wears groove.

By a kind of air compressor crankcase of the utility model bearing play regulating device, overcome the shortcoming that prior art exists, reached the purpose of above-mentioned creation, the utility model can be as required and the simple and easy and suitable gap is adjusted.

The utility model is described in further detail below in conjunction with drawings and the specific embodiments.

Fig. 1 is the sectional perspective schematic representation of air compressor of the present utility model;

Fig. 2 is a cross-sectional schematic of adjusting structure commonly used;

Fig. 3 is the sectional view that the utility model is adjusted structure;

Fig. 4 is the perspective exploded view that Fig. 3 adjusts structure.

By shown in Figure 1, the utility model air operated mechanism body part includes basic building blocks such as cylinder 10, crankcase 20, belt pulley 30, be provided with a crankshaft 21 in crankcase 20 inside, these crankshaft 21 two ends promptly are set up on the bearing support that crankcase 20 forward and backward two ends respectively are provided with.

Shown in Fig. 3,4, front-end bearing pedestal 40 of the present utility model is different with general common front-end bearing pedestal 22, these front-end bearing pedestal 40 bodies are darker for the ccontaining circular groove hole of pulling out bearing 24 that pushes away, the outer axial vane surface place that front-end bearing pedestal 40 inside is pushed away pull out bearing 24 can set up a bearing thrust piece 41, makes thrust block 41 pull out bearing 24 and all be placed in the circular groove hole of front-end bearing pedestal 40 bodies with pushing away; This bearing thrust piece 41 is and pushes away the discoid body that pulls out bearing 24 corresponding circles footpath size and tool suitable thickness, can establish on it and wear groove 411 for weight reduction, but burnishing surface 412 proper average force and rely on and push away the outer axial vane surface that pulls out bearing 24 and push away the outer rim body that pulls out bearing 24 in it during use are in bearing thrust piece 41 and push away to pull out between the bearing 24 and can establish other objects in addition; Be provided with one again in the shaft core position place of front-end bearing pedestal 40 and adjust screw 42, make it can directly contact to stablize and promote bearing thrust block 41 in the outer burnishing surface 413 of this bearing thrust piece 41, it is the best that this adjustment screw 42 is adjusted screw with interior hexagonal, it wears front-end bearing pedestal 40 bodies by the relation of screwing togather and exposes, can adjust the displacement amount that this adjustment screw 42 enter front-end bearing pedestal 40 inside by outside non-section type spiral shell is moving, after waiting to determine promptly again mat one hold-doun nut 43 locked; So the utility model only utilizes the simple and easy spiral shell that exposes to front-end bearing pedestal 40 outside adjustment screws 42 moving, can contact and the direct bearing thrust piece 41 that promotes to be located at front-end bearing pedestal 40 inside, and and then promote to join and bearing 24 is pulled out in to be adjusted pushing away and simple and easy finishing put in order several adjustment operations with this bearing thrust piece 41, and utilizing the simple and easy non-section type spiral shell moving (fine thread is set) of adjusting screw 42 to make it to convert to the inner non-section type and the axial promotion displacement of more accurate (trickleer amount), foot makes to be adjusted pushing away pull out bearing 24 its adjustment amount of simpler and easy control and tests.

In sum, the utility model has the improvement characteristics of novelty and practicability really, please be examined, and grant quasi patent for praying.

Claims

1, a kind of air compressor crankcase bearing play regulating device, crankcase inside in the air compressor structure is provided with a crankshaft, these crankshaft two ends are set up on the bearing support that the crankcase rear and front end is provided with, it is characterized in that: this front-end bearing pedestal body is deepened front-end bearing pedestal inside, back and is pushed away the outer axial vane surface place of pulling out bearing and establish a bearing thrust piece for the ccontaining circular groove hole of pulling out bearing that pushes away, and thrust block pulls out bearing and all is placed in the circular groove hole of front-end bearing pedestal body with pushing away; This bearing thrust piece is and pushes away the discoid body that pulls out bearing corresponding circle footpath size and have suitable thickness, burnishing surface directly relies on and pushes away the outer axial vane surface that pulls out bearing in it, is provided with one in the shaft core position place of front-end bearing pedestal and adjusts screw and directly contact outer burnishing surface in this bearing thrust piece; This adjustment screw mat relation of screwing togather wears the front-end bearing pedestal body and exposes.

2, the air compressor crankcase bearing play regulating device of stating as claimed in claim 1 is characterized in that: this adjustment screw is that interior hexagonal is adjusted screw, and it is that the mat relation of screwing togather wore this front-end bearing pedestal body and exposes, and by a hold-doun nut by being locked outward.

3, the air compressor crankcase bearing play regulating device of stating as claimed in claim 1, it is characterized in that: the bearing thrust piece is provided with wears groove.