CN209311485U - A kind of sanding device for concrete experiments - Google Patents

Abstract

The utility model relates to a kind of sanding devices for concrete experiments comprising bracket, the sand-filling cylinder for being set on bracket it and being used to contain sand, the sand-filling cylinder lower end offer discharging channel, the plate of opening and closing discharge port are plugged on the discharging channel；The bracket includes bracket one and the bracket two that is set in rack one, two lower end of bracket is fixed with screw rod, the slot for screw rod grafting is offered on the bracket one, and the driving wheel for cooperating with wire rod thread and be used to drive two upper and lower displacement of bracket is additionally provided on the bracket one.The utility model has the effect of convenient for staff's operation, improves staff's working efficiency.

Description

A kind of sanding device for concrete experiments

Technical field

The utility model relates to the technical field of concrete experiments equipment, more particularly, to a kind of for concrete experiments Sanding device.

Background technique

Before concrete in high volume put into production at present, it is required to test it, to guarantee concrete Properties are up to standard.

In existing laboratory, when carrying out production experiment to concrete, generally sand is first stored in bucket, further according to need It asks by manually pouring into test specimen tube, and test specimen tube is not of uniform size, when such as carrying out filling sand to small sample cylinder, since test specimen tube is opened Mouth is smaller, therefore staff needs meticulously carry out filling sand work to it, simultaneously because staff is needed to lift whole bucket sand, Staff is also more painstaking, to influence the working efficiency of its staff.

Utility model content

The purpose of the utility model is to provide a kind of convenient for staff's operation, improves being used for for staff's working efficiency The sanding device of concrete experiments.

The above-mentioned purpose of utility model of the utility model has the technical scheme that

A kind of sanding device for concrete experiments, including bracket, the Sheng for being set on bracket it and being used to contain sand Sand cylinder, the sand-filling cylinder lower end offer discharging channel, and the plate of opening and closing discharge port is plugged on the discharging channel；The bracket packet The bracket two for including bracket one and being set in rack one, two lower end of bracket are fixed with screw rod, offer on the bracket one For the slot of screw rod grafting, it is additionally provided with and cooperates with wire rod thread and for driving two upper and lower displacement of bracket on the bracket one Driving wheel.

By using above-mentioned technical proposal, by being supported using bracket to sand-filling cylinder, make its sand-filling cylinder far from ground, It protrude into it can test specimen tube in bracket, be at below sand-filling cylinder, then by the way that plate will be extracted, open discharge port, make it Sand can directly be fallen into sand-filling cylinder, completed it and filled sand work；And then rotated by driving wheel, drive screw rod to drive bracket two opposite Bracket upper and lower displacement, make its can internal stent height, can be filled to enter internal stent convenient for sand-filling cylinder of different sizes Sand work, so as to mitigate the labor intensity of staff significantly, effectively improves the working efficiency of staff.

The utility model is further arranged to: the bracket one is by three root posts one and two vertical connection adjacent columnss One cross bar one is constituted, and the side that the bracket one is in plate forms opening；The bracket two is corresponding with column one by three The column two of setting and the cross bar two of vertical connection adjacent columns two are constituted；Screw rod column one corresponding with driving wheel is arranged There are three groups；The driving wheel uses gear one, and the gear one is rotationally connected with one upper end of column and offers and wire rod thread The internal thread hole of connection coiling and is engaged with a rack gear band simultaneously on three gears one, is provided with drive on the bracket one The actuator of rack gear V belt translation and drive rack gear with section be V-shaped locating part.

By using above-mentioned technical proposal, drives rack gear band to rotate by actuator, drive three under the action of rack gear band A gear one rotates, and then fixes limit with column two respectively in be threadedly engaged effect and three screw rods of gear one and screw rod Under the rotation effect of throwing bar, the power that circumferentially rotates of screw rod is converted into axial displacement, is propped up to realize that adjusting bracket two is opposite The upper and lower displacement of frame one works；And then the limit of rack gear band is in the shape of the letter V by locating part, make its rack gear band opening far from bracket one At mouthful, the work that test specimen tube enters in bracket is not influenced.

The utility model is further arranged to: the actuator includes engaging and being rotationally connected on cross bar one with rack gear band Gear two, the drive shaft that rotates of driving gear two and be fixed on the handwheel one of drive shaft side.

By using above-mentioned technical proposal, drive shaft turns are driven by handwheel one, and then gear two is driven to rotate, in tooth Under the engagement of band and gear two, the transmission work to rack gear band is realized.

The utility model is further arranged to: the gear two is rotationally connected on cross bar one by shaft, the shaft One end of opposed gear two is fixed with worm gear, and the drive shaft turns are connected on cross bar one and are coaxially fixed with one section and worm gear The worm screw of engagement.

By using above-mentioned technical proposal, worm screw rotation is driven by drive shaft, under the meshing relation of worm and wheel, Realize the rotation work for driving shaft and gear two；And then under the effect of the self-locking property of worm and gear, it is made to be only capable of worm screw Worm gear rotation is driven, when no external force drives worm screw to rotate, worm gear is remained stationary, and enhances the transmission stability to rack gear band.

The utility model is further arranged to: the locating part includes being located at one inside of bracket and opposite rack gear with rack gear band With the position-limited wheel that side abuts, the position-limited wheel is rotationally connected on bracket one.

It by using above-mentioned technical proposal, is connected on the outside of rack gear band by position-limited wheel, rack gear band is formed into V-shaped；Into And since position-limited wheel is rotationally connected on bracket one, so that it is reduced the frictional force between rack gear band.

The utility model is further arranged to: the position-limited wheel is coaxially connected with limit shaft, the limit shaft lower end rotation It is connected with limit base, screw rod is threaded on the cross bar one, described screw rod one end and limit base are rotatablely connected, and the other end is set It is equipped with handwheel two.

By using above-mentioned technical proposal, screw rod rotation is driven by handwheel two, matches its screw rod in the screw thread of cross bar one Under cooperation is used, opposing rail one is moved forward and backward, so that limit base band carry-over bar band be driven to move forward and backward, can be opened to rack gear band It is tight to adjust, drive rack gear band to be always maintained at the engagement with gear.

In conclusion the advantageous effects of the utility model are as follows:

1. being supported using bracket to sand-filling cylinder, it be put into it can by test specimen tube below sand-filling cylinder and fill sand work, The labor intensity of staff can greatly be mitigated, convenient for the operation of staff, so that the work effect of staff can be improved Rate；

2. and then the test specimen tube of different height can be directed to, to bracket two with respect to one upper and lower displacement of bracket by bracket two It is adjusted, convenient for the filling sand work to various test specimen tube, and when folding and unfolding, bracket two can be minimized, be reduced to space It occupies.

Detailed description of the invention

Fig. 1 is the overall structure diagram of the utility model.

Fig. 2 is the connection structure partial schematic diagram in Fig. 1 between bracket one and bracket two.

Fig. 3 is the partial enlargement diagram of part A in Fig. 2.

Fig. 4 is the partial structural diagram of locating part in Fig. 2.

In figure, 1, bracket one；11, column one；12, cross bar one；2, bracket two；21, column two；22, cross bar two；3, sand is contained Cylinder；4, screw rod；5, rack gear band；6, locating part；61, position-limited wheel；62, limit base；63, limit shaft；64, screw rod；65, handwheel two； 7, gear one；8, actuator；81, gear two；82, shaft；83, drive shaft；84, worm screw；85, worm gear；86, mounting base；87, hand Wheel one；9, plate；10, discharging channel.

Specific embodiment

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

It referring to Fig.1, is a kind of sanding device for concrete experiments disclosed by the utility model, including bracket, Sheng sand Cylinder 3, bracket is made of bracket 1, bracket 22, and bracket 1 is made of three root posts 1 and two cross bars 1, two cross bars 1 by three columns, one 11 Formation cross-section be a side opening V-shaped；One 12 vertical welding of cross bar is fixed on column 1；Branch Frame 22 is made of three root posts 2 21 and three cross bars 2 22, and three cross bars 2 22, which are respectively perpendicular, is fixedly welded on adjacent columns On 2 21；Bracket 22 is set on bracket 1, and above-mentioned sand-filling cylinder 3 is placed on bracket 22 and lower end is abutted with cross bar 2 22, 3 lower end of sand-filling cylinder is connected with discharging channel 10, and the plate 9 of opening and closing discharge port is plugged on discharging channel 10, and the side bending of plate 9 is in Concave forms it into knob；The side that knob is open towards bracket 1；Test specimen tube protrudes into sand-filling cylinder 3 from one 1 open side of bracket Lower section, by plug plate 9 of shaking hands, control sand is fallen into test specimen tube from sand-filling cylinder 3, completes to work to the filling sand of test specimen tube.

Referring to Fig.1 with 2, the lower end of above-mentioned column 2 21 is coaxially fixed with a screw rod 4 respectively, opens respectively on three columns 1 Slot equipped with 4 grafting of a screw mandrel, the upper end of column 1 are provided with gear 1, and gear 1 and column 1 are coaxially disposed And it is rotationally connected on column 1 by thrust bearing (not shown)；Offered in gear 1 screw mandrel 4 pass through and with The internal thread hole that screw rod 4 is threadedly engaged；By driving gear 1 to rotate, under the fixed function of screw rod 4 and column 2 21, drive The circumferential movement of screw rod 4 is set to be converted to axial-movement, to drive bracket 22 with respect to one 1 upper and lower displacement of bracket.

Referring to Fig. 2 and 4, it is arranged and is engaged with a rack gear band 5 outside above-mentioned three groups of gears 1, is provided with and drives on bracket 1 The locating part 6 that rack gear band 5 avoids one 1 open side of bracket, its rack gear band 5 is made to be in the shape of the letter V, and the drive for driving rack gear band 5 to be driven Moving part 8, in the present embodiment, the hand of spiral of three screw rods 4 is identical；Referring to Fig. 2 and 3, actuator 8 include gear 2 81, shaft 82, Drive shaft 83, worm gear 85 and worm screw 84；Gear 2 81 is engaged with rack gear band 5 and is coaxially fixed with one end of shaft 82, shaft 82 are arranged in parallel and shaft 82 passes through and cross bar 1 and is rotationally connected with cross bar by bearing (not shown) with column 1 On one 12, worm gear 85 is fixed on the other end of 82 opposed gear 2 81 of shaft, and worm screw 84 is coaxial fixed with drive shaft 83, cross bar one Be fixed with mounting base 86 on 12, drive shaft 83 be rotationally connected in mounting base 86 by bearing (not shown) and worm screw 84 with Worm gear 85 engages, and is fixed with handwheel 1 on one end that drive shaft 83 is in outside bracket 1, drives worm screw 84 by handwheel 1 Rotation drives worm gear 85 to rotate with moving gear 2 81, so that rack gear band 5 be driven to be driven.

Referring to Fig. 2 and 4, above-mentioned locating part 6 includes position-limited wheel 61, limit shaft 63, limit base 62, screw rod 64 and handwheel two 65, above-mentioned position-limited wheel 61 is coaxial fixed with limit shaft 63, and limit shaft 63 is rotated by bearing (not shown) and limit base 62 Connection, screw rod 64 pass through cross bar 1 and are threadedly engaged with cross bar 1 and one end is rotatablely connected by bearing (not shown) In on limit base 62；Handwheel 2 65 and one end of 64 relative limit seat 62 of screw rod are fixed；Above-mentioned 61 outer wall of position-limited wheel and rack gear band 5 In bracket 1 and the side of opposite double wedge abuts；It drives screw rod 64 to rotate by handwheel 2 65, drives 62 front and back of limit base Displacement can carry out rate of tension adjusting to rack gear band 5 to adjust the distance between position-limited wheel 61 and rack gear band 5.

The implementation principle of the present embodiment are as follows: the sand-filling cylinder 3 for holding sand is placed on bracket 22, then by test specimen tube from branch The open side of frame 1 protrudes into 3 lower section of sand-filling cylinder, then is extracted plate 9 by knob, falls into its sand in sand-filling cylinder 3；And then it can According to test specimen tube height, drives drive shaft 83, worm screw 84 to rotate by handwheel 1, and then rotate with moving gear 2 81, drive Rack gear band 5 is driven, under the synchro-meshing effect of rack gear band 5 and three gears 1, thus in the screw thread of gear 1 and screw rod 4 Under mating reaction, screw rod 4 is driven to drive bracket 22 with respect to one 1 upper and lower displacement of bracket, thus in adjusting bracket 22 and bracket 1 Height distance, be suitable for carrying out different height test specimen tube filling sand work.

The embodiment of present embodiment is the preferred embodiment of the utility model, and not limitation is originally practical new according to this The protection scope of type, therefore: the equivalence changes that all structures, shape, principle according to the utility model are done should all be covered by practical Within novel protection scope.

Claims (6)

1. a kind of sanding device for concrete experiments, it is characterised in that: including bracket, be set on bracket it and be used to contain The sand-filling cylinder (3) of sand loading, sand-filling cylinder (3) lower end offer discharging channel (10), are plugged with opening and closing on the discharging channel (10) The plate (9) of discharge port；The bracket includes bracket one (1) and the bracket being set in rack one two (2), the bracket two (2) lower end is fixed with screw rod (4), and the slot for screw rod (64) grafting, the bracket one (1) are offered on the bracket one (1) On be additionally provided with and be threadedly engaged with screw rod (4) and for driving the driving wheel of bracket two (2) upper and lower displacement.

2. a kind of sanding device for concrete experiments according to claim 1, it is characterised in that: the bracket one (1) it is made of the cross bar one (12) of three root posts one (11) and two vertical connections adjacent columns one (11), the bracket one (1) side in plate (9) forms opening；The bracket two (2) is by three columns being correspondingly arranged with column one (11) two (21) and the cross bar two (22) of vertical connection adjacent columns two (21) is constituted；Screw rod (4) column one corresponding with driving wheel (11) three groups are provided with；The driving wheel uses gear one (7), and the gear one (7) is rotationally connected with column one (11) upper end And the internal thread hole being threadedly coupled with screw rod (4) is offered, coiling and a rack gear band is engaged with simultaneously on three gears one (7) (5), it is V that the actuator (8) with carry-over bar band (5) transmission is provided on the bracket one (1) and drives rack gear band (5) section The locating part (6) of font.

3. a kind of sanding device for concrete experiments according to claim 2, it is characterised in that: the actuator It (8) include that gear two (81) on cross bar one (12), driving gear two (81) rotation are engaged and be rotationally connected with rack gear band (5) Drive shaft (83) and be fixed on the handwheel one (87) of drive shaft (83) side.

4. a kind of sanding device for concrete experiments according to claim 3, it is characterised in that: the gear two (81) it is rotationally connected on cross bar one (12) by shaft (82), one end of shaft (82) opposed gear two (81) is fixed with Worm gear (85), the drive shaft (83) are rotationally connected on cross bar one (12) and are coaxially fixed with one section and engage with worm gear (85) Worm screw (84).

5. a kind of sanding device for concrete experiments according to claim 2, it is characterised in that: the locating part It (6) include being located at the position-limited wheel (61) that internal and opposite rack gear band (5) side of bracket one (1) abuts, the limit with rack gear band (5) Wheel (61) is rotationally connected on bracket one (1).

6. a kind of sanding device for concrete experiments according to claim 5, it is characterised in that: the position-limited wheel (61) it is coaxially connected with limit shaft (63), limit shaft (63) lower end is rotatably connected to limit base (62), the cross bar one (12) it is threaded on screw rod (64), described screw rod (64) one end and limit base (62) are rotatablely connected, and the other end is provided with hand Take turns two (65).