CN202560995U

CN202560995U - Speed reducer capable of eliminating back clearance

Info

Publication number: CN202560995U
Application number: CN2012202323348U
Authority: CN
Inventors: 王恩德
Original assignee: Individual
Current assignee: Individual
Priority date: 2012-05-22
Filing date: 2012-05-22
Publication date: 2012-11-28
Anticipated expiration: 2022-05-22

Abstract

The utility model relates to a speed reducer capable of eliminating a back clearance. The speed reducer comprises a body, a rear cover and an adjusting ring, a plurality of roller bearings are arranged in the body, the rear cover is combined with the rear side surface of the body, a combined groove opposite to the roller bearings positioned on the rear side surface of the body is concavely arranged on the inner side surface of the rear cover, an internal thread is arranged on the inner wall of the combined groove, two slot holes penetrating through the outer side surface of the rear cover are communicated with the combined groove and are arranged on the outer side surface of the rear cover, the adjusting ring is rotatably combined with the rear cover and clings to the body, an external thread screwed with the internal thread of the rear cover is arranged on the outer periphery of the adjusting ring, the adjusting ring axially penetrates through a plurality of adjusting holes arranged at intervals, and parts of the adjusting holes can penetrate through the two slot holes and are exposed outside the rear cover. Therefore, the speed reducer can be convenient to maintain and is capable of eliminating the back clearance.

Description

Eliminate the retarder of back clearance

Technical field

The utility model relates to a kind of retarder, but particularly a kind of convenient for maintaining and eliminate the retarder of back clearance.

Background technique

Existing retarder is as intermediary, the gear of different gear ratios arranged or dispose the mode of a plurality of ball bearings through set inside, after the high rotating speed that motor is exported slows down, exports as drive unit again and uses.

Yet; Existing retarder though can one deceleration effect be provided through gear or bearing, has retarder now after long-time the use in use; Because of making, abrasion produce gap or back clearance between each gear or ball bearing easily; Make the gear that is meshed or through can't carrying out transmission accurately between the bearing of ball transmission, and must the gear or the ball bearing of abrasion be changed and re-assembly, not only can increase the required time of maintenance; And gear or the ball bearing changed can increase required cost, and in addition improved place is arranged really.

The model utility content

Therefore, the not enough and disappearance that the utility model uses in view of existing retarder and keeps in repair, continuous test of special process and research develop the utility model that the existing disappearance of a kind of ability improvement finally.

The purpose of the utility model; Be to provide a kind of retarder of eliminating back clearance, its structural arrangements mode through simplifying can be under the situation of not dismantling retarder; The back clearance phenomenon that minimizing produces because of abrasion, but with this retarder that convenient for maintaining is provided and eliminates back clearance.

Based on above-mentioned purpose, the major technique means of the utility model are to provide a kind of retarder of eliminating back clearance, and it is provided with a body, a bonnet and an adjustment ring, wherein:

This body is a slightly ringwise pedestal, in this body, is provided with the ball bearing of a plurality of axially-aligned, and the pedestal that wherein is positioned at the ball bearing of this body trailing flank exposes to that this is external;

This bonnet combines with the trailing flank of this body; This bonnet is being concaved with the engagement groove faced mutually with the ball bearing that is positioned at this body trailing flank in the face of the inner side surface of this body; This engagement groove is provided with an internal thread on the ring wall of inner circumference edge, this bonnet is interval with two slotted holes that run through this bonnet outer side surface and communicate with this engagement groove at the outer side surface that differs from body; And

This adjustment ring combines with this bonnet rotationally and reclines mutually with this body; This adjustment ring is provided with the outside thread that is screwed with this bonnet internal thread on outer periphery; This adjustment ring is combined with this bonnet rotationally and be positioned at this engagement groove; This adjustment ring axially runs through the adjustment hole that a plurality of intervals are provided with in addition, and the part adjustment hole of this adjustment ring can be revealed in outside this bonnet through two slotted holes of this bonnet.

Further; Periphery around this ball bearing pedestal on the trailing flank of this body is interval with a plurality of joining holes; And this bonnet runs through and is provided with a plurality of and the relative perforation of this body joining hole straight line; And be provided with a plurality of lock firmwares that wore perforation and combined, make this bonnet can be fixedly arranged on the trailing flank of this body with this body joining hole.

Further again; This bonnet runs through and is provided with two perforations at the clear width near perforation; And two perforation straight lines of the wherein two adjustment holes of this adjustment ring and this bonnet are relative; And this adjustment be equipped with two be arranged at this perforation and corresponding adjustment hole fixed bolt, make this adjustment ring after adjustment, can pass through two fixed bolts and with this bonnet against and packing combines.

Preferably; This outer surface that is positioned at the pedestal of body trailing flank ball bearing convexes with at least one locating column; And this bonnet is concaved with the positioning hole that combines with at least one locating column of this body on the inner side surface of this engagement groove periphery, make this bonnet each the perforation joining hole straight line with this body is relative exactly.

Through described technological means; The utility model is eliminated the retarder of back clearance, the main engagement groove through a tool internal thread is set at this bonnet inner side surface and establish one and the outside thread that is screwed of this internal thread in these adjustment ring outer periphery, and through the mode of two slotted holes is set at this lid; The part adjustment hole of this adjustment ring can be exposed to outside this bonnet; Let the user under the situation of not dismantling this bonnet, a hand tools inserted in the adjustment hole that exposes to outside the bonnet, can be easily through rotating the mode of this hand tools; Make this adjustment ring rotate and move towards this body direction relative to this bonnet; And then the ball bearing pedestal generation that promotes to recline mutually with this adjustment ring is mobile, eliminates the back clearance that ball bearing produces because of abrasion easily, not only can keep in repair not dismantling under the situation of bonnet; And need not change one group of new ball bearing; And this adjustment ring can firmly combine with this bonnet through two fixed bolts after adjustment, can be effectively and reduce maintenance required time and cost significantly, but with this retarder person of a convenient for maintaining and elimination back clearance is provided.

Description of drawings

Fig. 1 is the stereoscopic figure of the utility model.

Fig. 2 is the sectional perspective exploded view of the utility model.

Fig. 3 is another sectional perspective exploded view of the utility model.

Fig. 4 is the schematic side view of the utility model.

Fig. 5 is the diagrammatic cross-sectional side elevation of the utility model along the 5-5 hatching.

Fig. 6 is the local amplification profile operation chart of the utility model.

The drawing reference numeral explanation:

10 bodies, 11 ball bearings

111 pedestals, 112 locating columns

12 joining holes, 20 bonnets

21 perforation, 22 lock firmwares

23 engagement grooves, 231 internal threads

24 slotted holes, 25 positioning holes

26 perforations, 30 adjustment rings

31 outside threads, 32 adjustment holes

33 fixed bolts, 40 hand toolss

Embodiment

The preferred embodiment of following conjunction with figs. and the utility model, further setting forth the utility model is to reach the technological means that predetermined model utility purpose is taked.

See also shown in Fig. 1 to 5, the utility model is for eliminating the retarder of back clearance, and it includes a body 10, a bonnet 20 and an adjustment ring 30, wherein:

This body 10 is a slightly ringwise pedestal; (ball bearing is a known technology in this body 10, to be provided with the ball bearing 11 of a plurality of axially-aligned; So do not set forth its structure); The pedestal 111 that wherein is positioned at the ball bearing 11 of these body 10 trailing flanks exposes to outside this body 10, and preferably, these pedestal 111 outer surfaces that are positioned at body 10 trailing flank ball bearings 11 convex with at least one locating column 112; Preferably, the periphery around these ball bearing 11 pedestals 111 is interval with a plurality of joining holes 12 on these body 10 trailing flanks;

This bonnet 20 removably combines with the trailing flank of this body 10; Preferably; This bonnet 20 runs through and is provided with a plurality of and the relative perforation 21 of joining hole 12 straight lines this body 10; And be provided with a plurality of lock firmwares 22 that wore perforation 21 and combined with the joining hole 12 of this body 10; Make this bonnet 20 can be fixedly arranged on the trailing flank of this body 10, be concaved with the annular binding groove 23 faced mutually with the ball bearing 11 that is positioned at these body 10 trailing flanks at this bonnet 20 in the face of the inner side surface of this body 10, this engagement groove 23 is provided with an internal thread 231 on the ring wall of inner circumference edge; This bonnet 20 is interval with two at the outer side surface that differs from this body 10 to be run through these bonnet 20 outer side surfaces and communicates with this engagement groove 23 and curved slotted hole 24; Preferably, this bonnet 20 is concaved with the positioning hole 25 that combines with this body 10 at least one locating columns 112 on the inner side surface of these engagement groove 23 peripheries, makes respectively boring a hole 21 joining hole 12 straight lines with this body 10 being relative exactly of this bonnet 20; Preferably, this bonnet 20 is provided with two perforations 26 running through near perforation 21 clear width; And

This adjustment ring 30 combines with this bonnet 20 rotationally and reclines mutually with this body 10; Wherein this adjustment ring 30 is provided with the outside thread 31 that is screwed with these bonnet 20 internal threads 231 on outer periphery; This adjustment ring 30 is combined with this bonnet 20 rotationally and be positioned at this engagement groove 23; This adjustment ring 30 axially runs through the adjustment hole 32 that a plurality of intervals are provided with in addition; Wherein the part adjustment hole 32 of this adjustment ring 30 can be revealed in through two slotted holes 24 of this bonnet 20 outside this bonnet 20; Let the user shown in Fig. 5 or 6, a hand tools 40 is inserted in this and expose in the adjustment hole 32 outside the bonnet 20, and, this adjustment ring 30 can be moved relative to this

bonnet

20 and 10 generations of this body through rotating the mode of this hand tools 40 through two slotted holes 24; In addition; The wherein two adjustment holes 32 of this adjustment ring 30 are relative with two perforations, 26 straight lines of this bonnet 20; And this adjustment ring 30 be provided with two be arranged at this perforation 26 and corresponding adjustment hole 32 fixed bolt 33, make this adjustment ring 30 after adjusting, can pass through two fixed bolts 33 and with this bonnet 20 against and packing combines.

The retarder of the utility model elimination back clearance in use; Please cooperate referring to as shown in Figure 6, when ball bearing 11 produced the phenomenon of back clearance because of long-time use wearing and tearing, the user can be under the situation of not dismantling this bonnet 20; One hand tools 40 is inserted in the adjustment hole 32 that exposes to outside the bonnet 20; Can drive this adjustment ring 30 and rotate and move easily through the mode of this hand tools 40 of rotation, and then ball bearing 11 pedestals 111 generations that promote to recline mutually with this adjustment ring 30 are moved towards these body 10 directions relative to this bonnet 20; Can eliminate the back clearance that ball bearing 11 produces because of abrasion easily; Not only can under the situation of not dismantling bonnet 20, keep in repair, and need not change one group of new ball bearing 11, and this adjustment ring 30 can firmly combine with this bonnet 20 through two fixed bolts 33 after adjustment; Can be effectively and reduce maintenance required time and cost significantly, but with this retarder person who convenient for maintaining is provided and eliminates back clearance.

The above only is the preferred embodiment of the utility model; Be not that the utility model is done any pro forma restriction; Though the utility model discloses as above with preferred embodiment; Yet be not that any those skilled in the art is in the scope that does not break away from the utility model technological scheme in order to qualification the utility model; Should utilize the technology contents of above-mentioned announcement to make a little change or be modified to the equivalent embodiment of equivalent variations; In every case be the content that does not break away from the utility model technological scheme, to any simple modification, equivalent variations and modification that above embodiment did, all still belong in the scope of the utility model technological scheme according to the technical spirit of the utility model.

Claims

1. a retarder of eliminating back clearance includes a body, a bonnet and an adjustment ring, it is characterized in that:

Be provided with the ball bearing of a plurality of axially-aligned in this body, the pedestal that wherein is positioned at the ball bearing of this body trailing flank exposes to that this is external;

2. the retarder of elimination back clearance according to claim 1; It is characterized in that; Periphery around this ball bearing pedestal on this body trailing flank is interval with a plurality of joining holes; And this bonnet runs through and is provided with a plurality of and the relative perforation of this body joining hole straight line, and is provided with a plurality of lock firmwares that wore perforation and combined with this body joining hole, makes this bonnet can be fixedly arranged on the trailing flank of this body.

3. the retarder of elimination back clearance according to claim 2; It is characterized in that; This outer surface that is positioned at the pedestal of body trailing flank ball bearing convexes with at least one locating column; And this bonnet is concaved with the positioning hole that combines with at least one locating column of this body on the inner side surface of this engagement groove periphery, make this bonnet each the perforation joining hole straight line with this body is relative exactly.

4. the retarder of elimination back clearance according to claim 3; It is characterized in that; This bonnet runs through and is provided with two perforations at the clear width near perforation; And wherein two adjustment holes that should adjustment ring are relative with two perforation straight lines of this bonnet, and this adjustment be equipped with two be arranged at this perforation and corresponding adjustment hole fixed bolt, make this adjustment ring after adjusting, can pass through two fixed bolts and with this bonnet against and packing combines.

5. the retarder of elimination back clearance according to claim 1; It is characterized in that; This outer surface that is positioned at the pedestal of body trailing flank ball bearing convexes with at least one locating column, and this bonnet is concaved with the positioning hole that combines with at least one locating column of this body on the inner side surface of this engagement groove periphery.