CN207730513U - A kind of cement mortar plain bumper - Google Patents

Abstract

The utility model discloses a kind of cement mortar plain bumpers,Belong to cement testing equipment field,Its technical solution is as follows,Including preceding bearing,Rear support,Swing arm,Desk tray,Described swing arm one end is hinged with preceding bearing,The swing arm other end is connected with desk tray,The desk tray is connected on rear support,The rear support, which is equipped with, makes actuating unit of the desk tray far from rear support,Several threaded posts are fixed on the desk tray,Hinge pillar is slidably connected in the threaded post,The hinge pillar is equipped with nut,The nut is threadedly coupled with threaded post,It is hinged with die sleeve on the hinge pillar,It is fixed with holder on the desk tray,The holder internal thread is connected with adjusting screw rod,Described die sleeve one end is fixed with clamping bar,The clamping bar is connected on adjusting screw rod,It is closely adjacent to die trial with guarantee die sleeve,The advantages of avoiding die trial from being vibrated away from desk tray during the experiment.

Description

A kind of cement mortar plain bumper

Technical field

The utility model is related to cement testing equipment field, more particularly to a kind of cement mortar plain bumper.

Background technology

Cement mortar plain bumper is a kind of equipment being used for the tested mould of cement strength testing with fluidity assay method, root According to GB/T17671-1999《Test method for strength of hydraulic cement mortar》Regulation, the die trial size of detection should be 40mm × 40mm × Empty die trial and die sleeve are fixed on plain bumper by the prism of 160mm, when use, with a spoon appropriate directly from agitated kettle In point of two layers loading die trial of glue sand is moved flat the bed of material after being put into glue sand when filling first layer, then vibrate 60 times, be reloaded into the Two layers of glue sand move flat second layer glue sand, then vibrate 60 times, remove die trial after the completion, and sample is completed.

The Chinese patent of Publication No. CN206369652U discloses a kind of cement mortar plain bumper, it at cam by setting Lubricating arrangement is set, reduce cam and the phenomenon that driven wheel is worn, improves conventional efficient, reduces artificial addition lubricating oil Number, but die trial fixture is not conserved, after multiple vibration experiment, loosening is just will appear between fixture, because die trial is big Small fixation, then will appear die trial can not be clamped, and so that die trial is detached from fixture limitation in an experiment, remove outside table top, greatly Influence conventional efficient.

Utility model content

The purpose of this utility model is to provide a kind of cement mortar plain bumper, has and ensures that die sleeve is closely adjacent to die trial, The advantages of avoiding die trial from being vibrated away from desk tray during the experiment.

The above-mentioned technical purpose of the utility model technical scheme is that：A kind of cement mortar jolt ramming Platform, including preceding bearing, rear support, swing arm, desk tray, described swing arm one end is hinged with preceding bearing, the swing arm other end It being connected with desk tray, the desk tray is connected on rear support, and the rear support, which is equipped with, makes actuating unit of the desk tray far from rear support, It is fixed with several threaded posts on the desk tray, hinge pillar is slidably connected in the threaded post, the hinge pillar is equipped with nut, institute It states nut to be threadedly coupled with threaded post, die sleeve is hinged on the hinge pillar.

By using above-mentioned technical proposal, when die sleeve can not compress desk tray, turn nut is moved to desk tray direction, nut It pushes down hinge pillar also to move to desk tray direction, hinge pillar drives die sleeve also to move to desk tray direction, at this time between die sleeve and desk tray Spacing becomes smaller, and die trial specification is certain, then makes die sleeve that can compress die trial again, ensures that detection is normally carried out.

Further, the nut outer diameter is more than hinge pillar outer diameter.

By using above-mentioned technical proposal, Lengthened moment arm, and then conveniently turn nut.

Further, holder is fixed on the desk tray, the holder internal thread is connected with adjusting screw rod, the die sleeve one End is fixed with clamping bar, and the clamping bar is connected on adjusting screw rod.

By using above-mentioned technical proposal, turn adjusting screw rod carries out elevating movement, and cooperation hinge pillar makes die sleeve end face protect Water holding is flat.

Further, the adjusting screw rod is stretched out far from clamping bar one end outside desk tray, and the adjusting screw rod stretches out desk tray one end It is fixed with handle, the handle outer diameter is more than the outer diameter of adjusting screw rod.

By using above-mentioned technical proposal, setting handle conveniently turns adjusting screw rod, saves manpower.

Further, the holder side is hinged with folder hook, and the folder hook is connected with limit spiral shell far from holder threaded one end Bolt, the caging bolt are connected to clamping bar upper end.

By using above-mentioned technical proposal, setting caging bolt pushes down clamping bar, and die sleeve is avoided to be overturn in vibration, influences pair The clamping of die trial.

Further, the actuating unit includes motor, cam, servo-actuated wheel carrier, and the motor is connected in rear support side, The cam is rotatablely connected with motor, and the servo-actuated wheel carrier is connected in desk tray bottom end, and the cam is abutted with servo-actuated wheel carrier.

By using above-mentioned technical proposal, so that desk tray intermittence is moved using the rotation of cam, achieve the effect that vibration.

Further, it is rotatably connected to runner on the servo-actuated wheel carrier, the cam is abutted with runner.

By using above-mentioned technical proposal, setting runner reduces the wear intensity of cam, improves the service life of cam.

Further, the cam includes arc end, jag, and the cam arc end is described prominent not with rotatable wheel contacts Outlet and rotatable wheel contacts and make desk tray far from rear support.

By using above-mentioned technical proposal, runner strikes and breaks cam on cam when desk tray being avoided to fall, further Improve the service life of cam.

Further, the desk tray upper surface is fixed with fixture block, and the fixture block is square ring-type.

By using above-mentioned technical proposal, die trial is placed in fixture block, die trial is avoided to be moved in the horizontal direction on desk tray It is dynamic.

In conclusion the utility model has the advantages that：

1, it is slid in threaded post by making hinge pillar, and is limited by nut, reached between adjusting between die sleeve and desk tray Away from, and then ensure that die sleeve compresses die trial；

2, by being provided with the holder of adjusting screw rod, cooperation hinge pillar ensures that die sleeve end face is horizontal；

3, cam friction is reduced by the way that runner is arranged, while avoiding runner from hitting cam to influence the cam service life；

4, die trial is avoided to move in the horizontal direction by the way that fixture block is arranged.

Description of the drawings

Fig. 1 is the general assembly design sketch of the present embodiment；

Fig. 2 is the enlarged drawing of A in Fig. 1；

Fig. 3 is the side view of the present embodiment；

Fig. 4 is the enlarged drawing of B in Fig. 3；

Fig. 5 is the enlarged drawing of C in Fig. 4.

In figure, 1, preceding bearing；2, rear support；3, swing arm；4, desk tray；41, fixture block；5, clamping device；51, threaded post； 52, hinge pillar；53, nut；54, adjusting screw rod；55, holder；56, hook is pressed from both sides；57, caging bolt；58, handle；6, die sleeve；61、 Clamping bar；7, actuating unit；71, motor；72, cam；721, arc end；722, jag；73, it is servo-actuated wheel carrier；74, runner.

Specific implementation mode

The utility model is described in further detail below in conjunction with attached drawing.

The design principle of the utility model is：

The hinge pillar 52 that can be slid in vertical direction by setting, and limited by nut 53, make die sleeve 6 and desk tray 4 Spacing can become smaller, and then the die sleeve 6 caused by more than vibration number is avoided to become larger with 4 spacing of desk tray, examination can not be clamped well The problem of mould.

Embodiment：A kind of cement mortar plain bumper, in conjunction with Fig. 1, Fig. 3, including preceding bearing 1, rear support 2, swing arm 3, platform Disk 4, swing arm 3 are round metal mast, and the top both sides of bearing 1 before two 3 one end of swing arm are rotatably connected on, desk tray 4 is connected In the other end of two swing arms 3, and 4 end face of desk tray is parallel；Rear support 2 is cylindric, and rear support 2 is arranged in 4 bottom end of desk tray And abutted with desk tray 4,4 top end face of desk tray is fixed with the fixture block 41 of square ring, and 41 inner ring specification of fixture block is identical as die trial specification, 4 top end face side of desk tray is equipped with clamping device 5, and clamping device 5 is equipped with die sleeve 6, and die sleeve 6 is regular square plate, and middle part is opened There are several slots；Rear support 2 is equipped with actuating unit 7 far from 1 side of preceding bearing.

In conjunction with Fig. 1, Fig. 3, the abutting desk tray 4 of 7 running clearance of actuating unit makes desk tray 4 along swing arm 3 and preceding bearing 1 Hinged spot wobble, achieve the effect that vibration；Die sleeve 6 coordinates desk tray 4 and fixture block under the position-limiting action of clamping device 5 simultaneously The six-freedom degree of 41 limitation die trials avoids die trial from slipping away in vibration processes and locates the molding of the influence sample of desk tray 4.

In conjunction with Fig. 2, Fig. 4, clamping device 5 includes threaded post 51, hinge pillar 52, and threaded post 51 is cylindric, two screw threads Column 51 is connected at 4 top end face side two corners of desk tray, and the length direction of threaded post 51 is vertical direction, and hinge pillar 52 is pipe Shape, hinge pillar 52 are socketed in threaded post 51, are slidably connected with threaded post 51, and threaded post 51 is located at 52 top screw thread of hinge pillar and connects It is connected to nut 53,53 outer diameter of nut is more than the outer diameter of hinge pillar 52.

In conjunction with Fig. 3, Fig. 4, clamping device 5 further includes holder 55, adjusting screw rod 54, and holder 55 is circular tube shaped, and holder 55 is solid It is connected in 4 top of desk tray and far from a middle side part of threaded post 51, holder 55 and two threaded posts 51 is triangular in shape, 55 axis of holder Direction is vertical direction, and adjusting screw rod 54 is cylindrical bar, and adjusting screw rod 54 is threadedly coupled with holder 55, and 54 bottom end of adjusting screw rod is worn Desk tray 4 is crossed, and 54 bottom end of adjusting screw rod is fixed with handle 58, handle 58 is annular shape, and middle part is by several cylindrical bars and adjusting Screw rod 54 is connected, and 58 outer diameter of handle is more than the outer diameter of adjusting screw rod 54, and 54 top of adjusting screw rod is stretched out outside holder 55, die sleeve 6 one Side both ends are hinged with hinge pillar 52, and 6 other side of die sleeve is fixed with rectangular clamping bar 61, and clamping bar 61 is placed on the top of adjusting screw rod 54 End.

In conjunction with Fig. 2, Fig. 4, hinge pillar 52 slides in threaded post 51, can make to move down on die sleeve 6 with the cooperation of adjusting screw rod 54 It is dynamic, avoid the problem that die sleeve 6 leads to not that die trial is clamped because plain bumper usage time is longer, and hinge pillar 52 is in threaded post Regulating time is accelerated in sliding, and follow-up need to only screw off nut 53 abuts with hinge pillar 52, easy to operate, and adjusting screw rod 54 coordinate with hinge pillar 52, ensure that 6 end face of die sleeve is parallel, and then reach maximum with the contact area of die trial, play optimal limit Effect processed；In adjusting nut 53 and caging bolt 57, because 53 outer diameter of nut and 58 outer diameter of handle are larger, then the arm of force is longer, real It is more laborsaving when turning to test personnel, operation is more convenient, and it is small to be threadedly coupled axis direction amount of movement, may also function as fine tuning Effect, and then die sleeve 6 is made more accurately to be close to die trial, so that die trial is fixed and more stablize.

In conjunction with Fig. 3, Fig. 4,55 side of holder is hinged with folder hook 56, and folder hook 56 is in semi-annular shape, presss from both sides 56 one end of hook and holder 55 is hinged, and folder 56 other end of hook is threaded with caging bolt 57, and 57 bottom face of caging bolt can be connected on clamping bar 61；Setting Caging bolt 57 pushes down clamping bar 61, avoids die sleeve 6 from being overturn along hinge pillar 52 in vibration, influences the clamping to die trial, same to time limit Position bolt 57 spiral can move on folder hook 56, even if can become therewith if 54 end height change caging bolt 57 of adjusting screw rod Change, can all keep the state of clamping die trial always, ensures that die trial will not move in vibration processes.

In conjunction with Fig. 1, Fig. 5, actuating unit 7 includes motor 71, cam 72, and motor 71 is connected in rear support 2 far from preceding bearing 1 Side, cam 72 include arc end 721 and jag 722, and jag 722 is subtriangular, jag 722 and arc end 721 are connected, and arc end center of circle part and the motor 71 of cam 72 are rotatablely connected；4 bottom end side of desk tray is fixed with two pieces of supporting rollers Frame 73, it is equilateral triangle plate to be servo-actuated wheel carrier 73, and runner 74, runner 74 and jag are rotatably connected between servo-actuated wheel carrier 73 722 abut, and when jag 722 and runner 74 contact makes desk tray 4 far from rear support 2.

In conjunction with Fig. 1, Fig. 5, the jag 722 of cam 72 makes runner 74 move to the system of jag 722 to be subtriangular Moment falls after high point, and 4 freely falling body of desk tray impinges upon on rear support 2 at this time, plays the effect of vibration, at the same runner 74 not with Arc end 721 contacts, and avoids 4 freely falling body of desk tray from striking on cam 72 and smashes cam 72, and influence cam 72 uses the longevity Life, while the frictional force being arranged between the reduction cam 72 of runner 74 and servo-actuated wheel carrier 73, further increase cam 72 uses the longevity Life.

Specific implementation process：Empty die trial is placed in fixture block 41 on desk tray 4, and die sleeve 6 is installed to hinge pillar 52 later On, while clamping bar 61 being placed on adjusting screw rod 54, allows the length direction free-falling of the threadingly column 51 of hinge pillar 52 at this time, And then die sleeve 6 is made to be contacted with empty die trial, turn nut 53, makes nut 53 be abutted with hinge pillar 52 later, and turn handle 58 makes tune 54 end height change of screw rod is saved, and then hinge pillar 52 is coordinated to keep 6 end face of die sleeve horizontal；Then folder hook 56 is turned on clamping bar 61 End, turn adjusting screw rod 54 complete the fixation to die sleeve 6 until the contact of clamping bar 61.

Behind the position for fixing sky die trial, with an appropriate spoon by two layers of loading examination of glue sand point directly in agitated kettle Mould moves flat the bed of material after being put into glue sand when filling first layer, then vibrates 60 times, second layer glue sand is reloaded into, by second layer glue sand It moves flat, then vibrates 60 times, remove die trial after the completion, complete the molding to die trial.

This specific embodiment is only the explanation to the utility model, is not limitations of the present invention, ability Field technique personnel can as needed make the present embodiment the modification of not creative contribution after reading this specification, but As long as all being protected by Patent Law in the right of the utility model.

Claims (8)

1. a kind of cement mortar plain bumper, including preceding bearing（1）, rear support（2）, swing arm（3）, desk tray（4）, the swing arm （3）One end and preceding bearing（1）It is hinged, the swing arm（3）The other end and desk tray（4）It is connected, the desk tray（4）It is propped up after being connected to Seat（2）On, the rear support（2）Being equipped with makes desk tray（4）Far from rear support（2）Actuating unit（7）, it is characterized in that：It is described Desk tray（4）On be fixed with several threaded posts（51）, the threaded post（51）On slidably connect hinge pillar（52）, the hinge pillar （52）Equipped with nut（53）, the nut（53）With threaded post（51）It is threadedly coupled, the hinge pillar（52）On be hinged with die sleeve （6）, the desk tray（4）On be fixed with holder（55）, the holder（55）Internal thread is connected with adjusting screw rod（54）, the die sleeve （6）One end is fixed with clamping bar（61）, the clamping bar（61）It is connected to adjusting screw rod（54）On.

2. a kind of cement mortar plain bumper according to claim 1, it is characterized in that：The nut（53）Outer diameter is more than hinge Column（52）Outer diameter.

3. a kind of cement mortar plain bumper according to claim 2, it is characterized in that：The adjusting screw rod（54）Far from clamping bar （61）Desk tray is stretched out in one end（4）Outside, the adjusting screw rod（54）Stretch out desk tray（4）One end is fixed with handle（58）, the handle （58）Outer diameter is more than adjusting screw rod（54）Outer diameter.

4. a kind of cement mortar plain bumper according to claim 3, it is characterized in that：The holder（55）Side is hinged with folder Hook（56）, the folder hook（56）Far from holder（55）Threaded one end is connected with caging bolt（57）, the caging bolt（57）It supports It is connected on clamping bar（61）Upper end.

5. a kind of cement mortar plain bumper according to claim 4, it is characterized in that：The actuating unit（7）Including motor （71）, cam（72）, servo-actuated wheel carrier（73）, the motor（71）It is connected in rear support（2）Side, the cam（72）With motor （71）Rotation connection, the servo-actuated wheel carrier（73）It is connected in desk tray（4）Bottom end, the cam（72）With servo-actuated wheel carrier（73）It supports It connects.

6. a kind of cement mortar plain bumper according to claim 5, it is characterized in that：The servo-actuated wheel carrier（73）Upper rotation connects It is connected to runner（74）, the cam（72）With runner（74）It abuts.

7. a kind of cement mortar plain bumper according to claim 6, it is characterized in that：The cam（72）Including arc end （721）, jag（722）, the cam（72）Arc end（721）Not with runner（74）Contact, the jag（722）With turn Wheel（74）It contacts and makes desk tray（4）Far from rear support（2）.

8. a kind of cement mortar plain bumper according to claim 7, it is characterized in that：The desk tray（4）Upper surface is fixed with Fixture block（41）, the fixture block（41）Be square ring-type.