CN205000387U - Central authorities articulated spacer, central articulated mounting and mechanical equipment - Google Patents

Abstract

The utility model discloses a central authorities articulated spacer, central articulated mounting and mechanical equipment relates to engineering machinery for solve the problem that the articulated spacer of central authorities is difficult to the dismantlement. The articulated spacer of these central authorities includes the spacer body, offers the indent part that is used for installing the pressing piece on the inner wall of spacer body. The central authorities that above -mentioned technical scheme provided articulate the spacer, can utilize central hinge bolt's self indent part, combine circlip to dismantle, the easily processing of indent part for the spacer is convenient to be dismantled, easily maintains.

Description

Central authorities hinged spacer, central articulated mounting and plant equipment

Technical field

The utility model relates to engineering machinery field, is specifically related to a kind of central hinged spacer, central articulated mounting and plant equipment.

Background technology

The front frame of loader and underground carry scraper and Rear frame form pivotally connected frame, and central articulated mounting is linkage unique between front frame and Rear frame.In overall operation with when running, central articulated mounting bears by accelerations, operations, braking, operation, the load such as fore-and-aft direction, second direction, rotation of operating mode generation such as to turn to, and has low speed, heavily loaded operation characteristic.Central authorities' articulated mounting is made up of the bearing on central hinging pin shaft, spacer, hinging pin shaft and the front frame hinged seat be coupled to each other by hinging pin shaft and Rear frame hinged seat.This structure both can bear radial load, can bear axial force again, and bearing wear certain limit internal clearance is adjustable, and before and after keeping, frame is articulated and connected in good condition, improved equipment dependability, applied very extensive.The axial restraint of current this central articulated mounting needs to rely on spacer to be fixed, and to improve bearing life, spacer effect is very large, and because of reason stressed etc. in use procedure, spacer is easily out of shape, and is difficult to dismounting at this central articulated mounting spacer of repair demolition

Specifically, many employings taper roll bearing formula and ball-and-socket hinge style in central articulated structure at present, as depicted in figs. 1 and 2.In these two kinds of articulated structures, the hinged plate hole of front frame 7 is built with bearing 2, and bearing cover 5,8 is by the effect of bolt 4, and be fixed in hinge hole by bearing 2, bearing clearance regulates by adjusting pad 6.Bolt 4 is through front frame 7.For effectively preventing external dust from entering Bearing inner, at bearing upper and lower two ends, sealing ring 3 is housed, bearing 2 inner ring, spacer 11 are tightly fit together with the lower plane of Rear frame 1 upper plate by the effect of bolt 10 by lower cover 9.Spacer 11 is role mainly location bearing inner ring in central articulated structure, prevents bearing axial float, and its structure is see the spacer 11 in Fig. 3.In product repairing, when central articulated structure dismantled by needs, need to take out spacer 11.Because of reason stressed etc. in use procedure, spacer 11 is easily out of shape, and generally not easily pulls down.Existing technology is the end face thread mill drilling at spacer 11, utilizes disassembling spacer bush device to dismantle.

As shown in Figure 3, patent No. CN202726837U discloses a kind of disassembling spacer bush device, it comprise steel plate 14, set bolt 15 and rise pull out bolt 16.It is provided with one in the heart and rises and pull out bolt 16 in steel plate 14, rise pull out the outside symmetry of bolt 16 be provided with two set bolts 15, spacer 11 is enclosed within spindle nose 12, and spacer 11 is provided with two screw holes and matches with two set bolts 15 on steel plate 14.When spacer 11 being unloaded down from spindle nose 12, need the screw hole that two, brill is corresponding to set bolt 15 on spacer 11, steel plate 14 set bolt 15 is fixed on spacer 11, then rotated and pulled out bolt 16, it is made to push up on spindle nose 12, make two set bolts 15 produce the power being pulled outwardly workpiece, rise and pull out the power that bolt 16 produces apical axis head inwards, thus spindle nose 12 and spacer 11 form a reciprocal power realizes dismantling smoothly.

Inventor finds, at least there is following problems in prior art:

(1), this shaft sleeve detaching device to spacer appearance and size require higher, require that the wall thickness of spacer must meet thread mill drilling.If spacer profile is comparatively large, then central articulated mounting size can become large thereupon, so there is the shortcomings such as huge structure, service clearance be narrow and small.

(2), axle sleeve dismounting time need make special dismounting frock, tool structure relative complex, exist disassemble difficulty, deposit inconvenience etc. shortcoming.

Utility model content

One of them object of the present utility model proposes a kind of central hinged spacer, central articulated mounting and plant equipment, in order to simplify the dismounting of central hinged spacer.

For achieving the above object, the utility model provides following technical scheme:

The utility model provides a kind of central hinged spacer, comprising spacer body, the inwall of described spacer body offering the female parts for installing pressing piece.

The hinged spacer of central authorities as above, preferably, described female parts is cannelure.

The hinged spacer of central authorities as above, preferably, the edge of described cannelure is provided with chamfering.

The hinged spacer of central authorities as above, preferably, described cannelure is positioned at the middle of described spacer body axial direction.

The hinged spacer of central authorities as above, preferably, described pressing piece is circlip.

The utility model also provides a kind of central articulated mounting, and it comprises the hinged spacer of central authorities that the arbitrary technical scheme of the utility model provides.

The utility model reoffers a kind of plant equipment, and it comprises the central articulated mounting that the arbitrary technical scheme of the utility model provides.

Based on technique scheme, the utility model embodiment at least can produce following technique effect:

The hinged spacer of the central authorities that technique scheme provides, can utilize the female parts of central hinging pin shaft self, dismantle in conjunction with circlip; Female parts is easy to processing, makes spacer for convenience detach, for ease of maintenaince.

Accompanying drawing explanation

Accompanying drawing described herein is used to provide further understanding of the present utility model, and form a application's part, schematic description and description of the present utility model, for explaining the utility model, is not formed improper restriction of the present utility model.In the accompanying drawings:

Fig. 1 is the structural representation one of underground carry scraper central authorities articulated mounting in prior art;

Fig. 2 is the structural representation two of underground carry scraper central authorities articulated mounting in prior art;

Fig. 3 is the structural representation of shaft sleeve detaching device disclosed in prior art;

The structural representation of the hinged spacer of central authorities that Fig. 4 provides for the utility model embodiment;

Fig. 5 is in the schematic diagram of installment state for the hinged spacer of central authorities that the utility model embodiment provides;

The schematic flow sheet of Fig. 6 disassembling spacer bush method disclosed in the utility model embodiment.

Detailed description of the invention

Below in conjunction with the elaboration that Fig. 4 ~ Fig. 6 carries out specifically to the technical scheme that the utility model provides.

The utility model embodiment provides a kind of central hinged spacer, or referred to as spacer.This spacer is specifically as follows the hinged spacer of central authorities on loader and underground carry scraper.

This central hinged spacer comprises spacer body 20, the inwall of spacer body 20 offers the female parts 201 for installing pressing piece.

Female parts 201 is such as cannelure, semi-circular groove, counterbore etc., the structure of pressing piece and the structure matching of female parts 201, after making being installed to by pressing piece in female parts 201, can exposed portion structure, with make follow-up can to pressing piece time pressure or pulling force.

The hinged spacer of the central authorities that technique scheme provides, can utilize the female parts 201 of central hinging pin shaft 24 self, dismantle in conjunction with circlip 27; Female parts 201 is easy to processing, makes spacer for convenience detach, for ease of maintenaince.

In the present embodiment particularly, female parts 201 is cannelure.

Pressing piece is specifically as follows circlip 27, and circlip 27 is convenient to be installed in cannelure.It should be noted that, after circlip 27 is arranged in cannelure, part-structure should be had to expose outside cannelure, to make follow-up can force to circlip 27.Specifically, can, by arranging the size of the annular section of circlip 27, the size of circlip 27 annular section be made to be greater than the degree of depth of cannelure, to meet above-mentioned requirements.Certainly, above-mentioned implementation is not limited to.

Further, the edge of cannelure is provided with chamfering, to make the more convenient installation of circlip 27, and central hinging pin shaft 24 act on power on spacer evenly, guard block.

Annular slot body is positioned at the middle of spacer body 20 axial direction.

The hinged axle sleeve of the central authorities that technique scheme provides, structure as shown in Figure 4.This spacer processes cannelure, and the distance of cannelure distance spacer lower surface is moderate, and wants chamfered edge limit outside cannelure.The object of processing cannelure is in order to install circlip 27.This central jointed shaft cover has following advantage:

(1), disassembling spacer bush operation simple and easy, reliable, to part of appliance not damaged, not needing additionally to increase instrument can complete, and maintenance cost is low, lower to field requirement.

(2), utilize the bearing pin of central articulated mounting self and circlip 27 to extrude spacer, shorten maintenance time, improve the maintenance efficiency of car load.

(3), dismounting axle sleeve time, operate from the upper end of central articulated mounting, operating space is large.

(4), disassembling spacer bush operation is reliable, and to part of appliance not damaged, maintenance cost is low.

The utility model embodiment reoffers a kind of central articulated mounting, and it comprises the hinged spacer of central authorities that the arbitrary technical scheme of the utility model provides.

The utility model embodiment also provides a kind of plant equipment, and it comprises the central articulated mounting that the arbitrary technical scheme of the utility model provides.

This plant equipment is specifically as follows loader, underground carry scraper.

See Fig. 6, the utility model embodiment also discloses a kind of disassembling spacer bush method, and spacer is the hinged spacer of central authorities on central articulated mounting, the spacer that this spacer preferably adopts above-mentioned any technical scheme to provide.This disassembling spacer bush method comprises the steps:

Step S1, the lower cover of dismantling on central articulated mounting.First disassemble the bolt on lower cover, then take away lower cover.

Step S2, the central hinging pin shaft sling on central articulated mounting, until the female parts exposing central hinged spacer inside.

In step s 2, central hinging pin shaft can be sling together with upper cover plate; Or first upper cover plate is dismantled, central hinging pin shaft of then slinging separately.Front a kind of mode more saves time comparatively speaking.Its detailed process is as follows: disassemble the bolt on the upper cover plate of central articulated mounting;

To sling upper cover plate and central hinging pin shaft, until expose the female parts of central hinged spacer inside simultaneously.

Step S3, in female parts, pressing piece is installed.The description of female parts and pressing piece see above, can repeat no more herein.

Step S4, central hinging pin shaft to be pressed on pressing piece, until central hinged spacer is displaced downwardly to, front frame and Rear frame can be departed from.

Central authorities' hinging pin shaft is pressed on pressing piece, and apply pressure by pressing piece to the hinged spacer of central authorities, this pressure forces central hinged spacer to come off, and so far completes the dismounting of central hinged spacer.

Hold above-mentioned, if upper cover plate and central hinging pin shaft are sling simultaneously, so when pressing down pressing piece, also can be pressed on pressing piece down by upper cover plate and central hinging pin shaft, specifically step S4 comprises simultaneously: be pressed on pressing piece by upper cover plate and central hinging pin shaft simultaneously; Continue to press down pressing piece, until central hinged spacer moves down into certain position, can depart to make front frame and Rear frame.

Step S5, take off central hinged spacer.After front frame and Rear frame being departed from, the hinged spacer in the downward hit centre of any force-applying piece easily can be got, until central hinged spacer comes off.

Below in conjunction with Fig. 5 and Fig. 6, said method is described in further detail.To dismantle the hinged spacer of ball-and-socket hinge style central authorities, as shown in Figure 5 and Figure 6, demounting procedure is as follows:

First, bolt 21,26 and bottom end cover 25 are pulled down, to be sling upper cover plate 23 and central hinging pin shaft 24 by hole for hoist 22.

Secondly, when central hinging pin shaft 24 slings sufficiently high position, circlip 27 is installed in the cannelure of spacer 20 from spacer lower end.

Finally, to pressing down central hinging pin shaft 24, spacer 20 is forced to exit.

In description of the present utility model, it will be appreciated that, term " " center ", " longitudinal direction ", " transverse direction ", " front ", " afterwards ", " left side ", " right side ", " vertically ", " level ", " top ", " end ", " interior ", orientation or the position relationship of the instruction such as " outward " are based on orientation shown in the drawings or position relationship, only for ease of describing the utility model and simplified characterization, instead of instruction or infer the device of indication or element must have specific orientation, for specific azimuth configuration and operation, thus the restriction to the utility model protection content can not be interpreted as.

If employ the word such as " first ", " second " herein to limit component, those skilled in the art should know: the use of " first ", " second " is only used to be convenient to describe the utility model and simplified characterization, as do not stated in addition, the implication that above-mentioned word is not special.

Finally should be noted that: above embodiment is only in order to illustrate that the technical solution of the utility model is not intended to limit; Although be described in detail the utility model with reference to preferred embodiment, those of ordinary skill in the field have been to be understood that: still can modify to detailed description of the invention of the present utility model or carry out equivalent replacement to portion of techniques feature; And not departing from the spirit of technical solutions of the utility model, it all should be encompassed in the middle of the technical scheme scope of the utility model request protection.

Claims (7)

1. the hinged spacer of central authorities, is characterized in that, comprises spacer body, the inwall of described spacer body offers the female parts for installing pressing piece.

2. the hinged spacer of central authorities according to claim 1, is characterized in that, described female parts is cannelure.

3. the hinged spacer of central authorities according to claim 2, is characterized in that, the edge of described cannelure is provided with chamfering.

4. the hinged spacer of the central authorities according to Claims 2 or 3, is characterized in that, described cannelure is positioned at the middle of described spacer body axial direction.

5., according to the arbitrary described hinged spacer of central authorities of claim 1-3, it is characterized in that, described pressing piece is circlip.

6. a central articulated mounting, is characterized in that, comprises the arbitrary described hinged spacer of central authorities of claim 1-5.

7. a plant equipment, is characterized in that, comprises central articulated mounting according to claim 6.