CN106890785B

CN106890785B - Recycled concrete aggregate screening plant

Info

Publication number: CN106890785B
Application number: CN201710162728.8A
Authority: CN
Inventors: 敖志勇
Original assignee: Longgang Shenzhen Large Industry Zone Concrete Co Ltd
Current assignee: Longgang Shenzhen Large Industry Zone Concrete Co Ltd
Priority date: 2017-03-18
Filing date: 2017-03-18
Publication date: 2020-02-14
Anticipated expiration: 2037-03-18
Also published as: CN106890785A

Abstract

The invention discloses a recycled concrete aggregate screening device, which adopts the technical scheme that the device comprises a support frame and a machine body, wherein the machine body comprises a shell and a screen body which is rotatably connected in the shell and is obliquely arranged, one end of the shell is connected with a feed hopper, screen holes are distributed on the screen body, a driving mechanism for driving the screen body to rotate is arranged on the support frame, a mounting bar is fixed in the shell, a push rod corresponding to the screen holes is axially arranged on the rod, a push ball with the diameter larger than that of the screen holes is fixed at the end part of the push rod, a first spring for pushing the push rod to keep the push ball to be sunk in the screen holes is arranged between the push rod and the mounting bar, so when a part of, the push balls can continuously sink into each sieve hole in the rotating process of the sieve body, the aggregate clamped in the sieve holes is pushed into the sieve body, therefore, aggregate clamped in the sieve holes can be conveniently cleaned, and the sieve body is kept in a good sieving state.

Description

Recycled concrete aggregate screening plant

Technical Field

The invention relates to a screening device, in particular to a recycled concrete aggregate screening device.

Background

The recycled concrete is prepared by crushing waste concrete to prepare recycled coarse aggregate and fine aggregate, and partially or completely replacing natural coarse aggregate and fine aggregate, wherein the obtained aggregate is recycled aggregate, and the aggregate needs to be screened before use, for example, Chinese patent with publication number of CN203791183U discloses a recycled concrete aggregate vibrating type screening device easy to discharge, which comprises a screen body, a feeding device, a bracket outer frame and an electric screen seat, wherein the feeding device is positioned at the upper part of the whole screening device, the lower part of the feeding device is connected with the screen body, one side of the feeding device and one side of the screen body are connected with the bracket outer frame, the screen body and the lower part of the bracket outer frame are connected with the electric screen seat by springs, the screen body comprises 8 screens, the screens are arranged from top to bottom according to the sequence of screen hole diameters, and the electric screen seat is a screen seat internally provided with a motor, the screening device can be used in the production process of modified recycled concrete aggregate, so that the recycled aggregate forms good gradation, the porosity of the modified recycled concrete is reduced, and the strength, the impermeability and the durability of the modified recycled concrete are improved.

However, in the use process of the device, part of aggregate is stuck on the sieve holes on the sieve body, so that the aggregate is difficult to clean, and the subsequent screening efficiency of the aggregate is influenced.

Disclosure of Invention

The invention aims to provide a recycled concrete aggregate screening device which has the advantage of being convenient for cleaning aggregates clamped in a sieve hole.

The technical purpose of the invention is realized by the following technical scheme:

the utility model provides a recycled concrete aggregate screening plant, includes support frame and organism, the organism includes the casing and rotates the screen frame of connecting in the casing and slope setting, the one end of casing is connected with the feeder hopper, it has the sieve mesh to distribute on the screen frame, be provided with drive screen frame pivoted actuating mechanism on the support frame, the inside mounting bar that is fixed with of casing, the mounting bar is provided with the push rod that corresponds with the sieve mesh along the axial, the end fixing of push rod has the diameter to be greater than the ball that pushes away of sieve mesh, be provided with between push rod and the mounting bar and promote the push rod and keep pushing away the ball and fall into the first spring in the sieve mesh.

Through set up the mounting bar in the casing, and push away the ball on the mounting bar and can sink in the sieve mesh in the effect of first spring, so when meetting partial sieve mesh in-process joint has the aggregate, push away the ball at screen frame pivoted in-process and can be in continuous each sieve mesh of sinking, push away the aggregate that blocks in the sieve mesh in to the screen frame, thereby very convenient realization is cleared up the aggregate of card in the sieve mesh, keep the screen frame to be in good screening state, at this in-process because it is the cambered surface to push away the ball surface, push away the ball and shift out the sieve mesh easily when the screen frame rotates, first spring is compressed, can be pushed into in another sieve mesh by the restoring force of first spring after that, the difficult condition that the jamming appears.

The invention further provides that: the mounting bar corresponds first spring department threaded connection has the butt piece, first spring one end butt is on the push rod, and the other end butt is on the butt piece.

Through threaded connection have with the butt piece of first spring butt on the mounting bar, so when meetting the elasticity that needs adjust the pushball, only need rotate the butt piece and can realize easy operation to adjust the suitable elasticity of pushball according to actual need, have more the suitability.

The invention further provides that: the butt joint block is convexly provided with a convex column matched with the inner ring of the first spring, and the push rod is provided with a concave hole matched with the convex column.

At first the setting of pillar can play the effect that supports to first spring for first spring is flexible along the axial that the in-process that warp can be better, and the setting of shrinkage pool gives the stroke that the pillar removed in addition, avoids the pillar to receive blockking of push rod.

The invention further provides that: the casing inner wall is fixed with the mounting bracket that supplies the mounting bar installation, the mounting bar slides and connects on the mounting bracket, be provided with the driving piece that the drive mounting bar removed on the mounting bracket.

Through sliding the mounting bar and connecting on the mounting bracket, so at the normal during operation of screen frame, can move to pushing away the ball with the help of driving piece drive mounting bar and leave the sieve mesh, the screen frame rotates more smoothness nature this moment, also avoids pushing away the condition that the ball contacted for a long time and produced wearing and tearing simultaneously, when meetting the aggregate that needs the clearance card in the sieve mesh, drives the mounting bar again and lies in the sieve mesh to pushing away the ball, and when the screen frame rotated this moment, the aggregate of card in the sieve mesh can be pushed away the ball and push down.

The invention further provides that: the driving piece comprises a screw rod which is rotatably connected to the mounting frame and is in threaded connection with the mounting bar.

The installation strip is driven to move through the screw rod, the screw rod only needs to be rotated positively and negatively during operation, simplicity and convenience are achieved, and the screw rod has the axial anti-return effect, so that the installation strip with the adjusted position is not prone to sliding.

The invention further provides that: offer on the mounting bracket and supply the gliding spout of mounting bar, the driving piece is including wearing to establish in the spout and butt in the double-screw bolt of mounting bar, be provided with the second spring between the one end that the double-screw bolt was kept away from to the mounting bar and the spout inner wall.

Only need rotate the double-screw bolt like this, promote mounting bar adjustment position with the help of the double-screw bolt, when moving the double-screw bolt rotation inwards, the second spring is compressed, when the upset double-screw bolt is retreated, the mounting bar can resume under the effect of second spring, simple structure, and same threaded connection's double-screw bolt has axial non-return effect equally for the regulation of mounting bar position has more stability.

The invention further provides that: the push ball is provided with a threaded hole, and the push rod is in threaded connection with the threaded hole.

Set up like this and realize being connected with dismantling of push ball and push rod, so when running into to appear wearing and tearing after the push ball uses for a long time and being difficult to continue to use, only need will push away the ball take off change can, simultaneously to the sieve mesh in different apertures, also can change the push away the ball of different diameters and go on, have more the suitability.

The invention further provides that: the shell comprises a bottom shell and a top shell, one side of the top shell is hinged to the bottom shell, and a material leakage port is formed in the bottom of the bottom shell.

Through the setting of topshell, can play the effect of protection and sheltering from, it can cover the mounting bar for aggregate screening plant possesses better aesthetic property, also avoids appearing the condition that the aggregate flew out from the screen frame at the in-process of work in addition, has more the security.

The invention further provides that: the top shell comprises a plurality of sub-shells, and the sub-shells are provided with observation windows.

At first the observation window is convenient for the staff to observe the inside condition of casing, and the epitheca comprises a plurality of branch shells, so when observing the sieve body of one of them position inside and go wrong, only need open corresponding branch shell can, need not to open whole epitheca, operate more laborsavingly.

The invention further provides that: divide the shell to be provided with 3, the middle part divide to rotate on the shell to be connected with the handle, be fixed with the fixed strip on the handle, the both ends of fixed strip articulate there is the inserted bar, both sides divide and offer the jack that supplies the inserted bar to peg graft on the shell.

Set up like this and can realize dividing linkage and separation between the shell to adjust according to actual need, when needs open whole top shell, only need twist grip make the inserted bar peg graft and realize the linkage in the jack of branch shell, can realize opening of whole top shell when dividing the shell this moment, and when only needing to open one of them branch shell, twist grip makes the inserted bar shift out from the jack, each divides the shell to be in the detached state this moment, open corresponding branch shell that need open can, the operation is more laborsaving.

Drawings

FIG. 1 is an overall structural view of embodiment 1;

FIG. 2 is a structural view of the top case in the open state in embodiment 1;

FIG. 3 is an enlarged view at A in FIG. 1;

FIG. 4 is a structural view of a mounting bar in embodiment 1;

FIG. 5 is a sectional view of a mounting bar in embodiment 1;

FIG. 6 is an enlarged view at B in FIG. 5;

FIG. 7 is a structural view of a mounting bar in embodiment 2;

fig. 8 is an enlarged view at C in fig. 7.

Reference numerals: 1. a support frame; 2. a housing; 21. a top shell; 211. splitting the shell; 22. a bottom case; 221. a material leakage port; 3. a screen body; 31. screening holes; 4. a motor; 5. mounting a bar; 51. a push rod; 52. pushing the ball; 53. a first spring; 54. a butting block; 55. a convex column; 56. concave holes; 57. a threaded hole; 6. a mounting frame; 61. a chute; 7. a screw; 8. a stud; 9. a second spring; 10. an observation window; 11. a handle; 12. a fixing strip; 13. inserting a rod; 14. a jack; 15. a feed hopper.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications of the present embodiment without inventive contribution as needed after reading the present specification, but all of them are protected by patent law within the scope of the claims of the present invention.

Example 1: a recycled concrete aggregate screening device is disclosed, as shown in figures 1 and 2, comprising a support frame 1 and a machine body, wherein the machine body comprises a shell 2, a screen body 3 is connected in the shell 2 in an inclined rotating manner, a feed hopper 15 communicated with the screen body 3 is arranged at one end of the shell 2, screen holes 31 are uniformly distributed on the screen body 3, a driving mechanism for driving the screen body 3 to rotate is arranged on the screen body 3, the driving mechanism is a motor 4 and a speed reducer, wherein the shell 2 comprises a top shell 21 and a bottom shell 22, a leakage opening 221 is arranged at the upper bottom of the bottom shell 22, so that aggregates are poured into the rotating screen body 3 from the feed hopper 15, aggregates with smaller particles can fall from the screen holes 31 and leak out from the leakage opening 221, aggregates with larger particles roll to the lowest position of the screen body 3 under the action of gravity to be collected, thereby realizing the screening of the aggregates, wherein the top shell 21 comprises 3 split shells 211, divide shell 211 one side to articulate on drain pan 22 to all be provided with observation window 10 on each branch shell 211, thereby the condition in the staff's of being convenient for casing 2, so when observing the screen frame 3 inside one of them position and go wrong, only need open corresponding branch shell 211 can, need not to open whole top shell 21, the operation is more laborsaving.

As shown in fig. 3, in order to open the top shell 21 conveniently, a handle 11 is rotatably connected to the split shell 211 at the middle part, a fixing strip 12 is fixed on the handle 11, insertion rods 13 are hinged to both ends of the fixing strip 12, insertion holes 14 for the insertion rods 13 to be inserted are formed in the split shells 211 at both sides, and linkage and separation between the split shells 211 can be realized, so that adjustment can be performed according to actual needs, when the whole top shell 21 needs to be opened, only the handle 11 needs to be rotated to enable the insertion rods 13 to be inserted into the insertion holes 14 of the split shells 211, namely, linkage can be realized, at the moment, the whole top shell 21 can be opened by turning over the split shells 211, and only one of the split shells 211 needs to be opened, the handle 11 is rotated to enable the insertion rods 13 to be moved out from the insertion holes 14, at the moment, each split shell 211 is in a separation state, and the split shells 211.

As shown in fig. 2 and fig. 4-6, because some aggregates are easy to be clamped in the sieve holes 31 during the specific use process, which results in the screening efficiency and effect of the subsequent aggregates, and the clamped aggregates are troublesome to clean, the mounting frame 6 fixed on the support frame 1 is arranged above the drum, the mounting frame 6 is provided with the mounting bar 5 arranged along the axial direction, the mounting bar 5 is provided with the push rod 51 corresponding to the sieve holes 31, the end part of the push rod 51 is fixed with the push ball 52 with the diameter larger than that of the sieve holes 31, and the first spring 53 for pushing the push ball 52 to be tightly attached to the sieve holes 31 is arranged between the push ball 52 and the mounting bar 5, so that when some aggregates are clamped in the sieve holes 31, the push ball 52 continuously sinks into each sieve hole 31 during the rotation process of the sieve body 3, the aggregates in the sieve holes 31 are pushed into the sieve body 3, thereby very conveniently cleaning the aggregates clamped in the sieve holes 31, the screen body 3 is kept in a good screening state, in the process, because the surface of the push ball 52 is a cambered surface, the push ball 52 is easy to move out of the screen holes 31 when the screen body 3 rotates, the first spring 53 is compressed and then pushed into another screen hole 31 by the restoring force of the first spring 53, and the situation of clamping stagnation is not easy to occur; since the ball 52 is always stuck in the hole 31 during normal operation and is easily worn, therefore, the mounting rack 6 is provided with a sliding chute 61 for the mounting bar 5 to slide, the mounting rack 6 is provided with a driving piece for driving the mounting bar 5 to slide in the sliding chute 61 to realize lifting, the driving member comprises a screw rod 7 rotatably connected to the slide groove 61 and penetrating through the mounting bar 5, the screw rod 7 being threadedly connected to the mounting bar 5, therefore, when the screen body 3 works normally, the mounting bar 5 can be driven by the driving piece to move to the push balls 52 to leave the screen holes 31, at the moment, the screen body 3 rotates more smoothly, meanwhile, the situation that the push balls 52 are worn due to long-term contact is avoided, when meeting and needing to clear up the aggregate of card in sieve mesh 31, drive mounting bar 5 again to pushing away ball 52 and be located sieve mesh 31, when screen frame 3 rotated this moment, the aggregate of card in sieve mesh 31 can be pushed down by pushing away ball 52.

In addition, the mounting bar 5 is in threaded connection with an abutting block 54 abutted against the first spring 53, one end of the first spring 53 abuts against the abutting block 54, and the other end of the first spring 53 abuts against the push rod 51, so that when the elastic force of the push ball 52 needs to be adjusted, the adjustment can be realized only by rotating the abutting block 54, the operation is simple, the appropriate elastic force of the push ball 52 is adjusted according to actual needs, and the applicability is better; in order to increase the stability of first spring 53 deformation, be equipped with the boss 55 with first spring 53 inner circle complex on butt piece 54 epirelief to seted up on push rod 51 with boss 55 complex shrinkage pool 56, the stroke that boss 55 removed can be given to shrinkage pool 56, thereby with the help of boss 55's supporting role, makes first spring 53 can follow the deformation of axial stability.

Wherein, the ball 52 is provided with a threaded hole 57 which is in threaded connection with the push rod 51, thereby realizing the detachable replacement of the ball 52, when the ball 52 is worn and is difficult to continue to be used after long-term use, only the ball 52 needs to be taken down for replacement, and meanwhile, when aiming at the sieve holes 31 with different apertures, the ball 52 with different diameters can be replaced, thereby having better applicability.

Example 2: the utility model provides a recycled concrete aggregate screening plant, as shown in fig. 7 and 8, its difference with embodiment 1 lies in the difference of driving piece, the driving piece is including wearing to establish in spout 61 and butt in the double-screw bolt 8 of mounting bar 5, be provided with second spring 9 between the one end of mounting bar 5 keeping away from double-screw bolt 8 and the spout 61 inner wall, only need rotate double-screw bolt 8 like this, promote mounting bar 5 adjustment position with the help of double-screw bolt 8, when rotating double-screw bolt 8 and moving inwards, second spring 9 is compressed, when upset double-screw bolt 8 retreats, mounting bar 5 can resume under the effect of second spring 9, moreover, the steam generator is simple in structure, the double-screw bolt 8 of same threaded connection has axial non-return effect equally, make the regulation of mounting bar 5 position have more stable.

Claims

1. The utility model provides a recycled concrete aggregate screening plant, includes support frame (1) and organism, the organism includes casing (2) and rotates screen frame (3) of connecting in casing (2) and slope setting, the one end of casing (2) is connected with feeder hopper (15), it has sieve mesh (31) to distribute on screen frame (3), be provided with drive screen frame (3) pivoted actuating mechanism on support frame (1), characterized by: the inner part of the shell (2) is fixed with a mounting bar (5), the mounting bar (5) is provided with push rods (51) corresponding to the sieve holes (31) along the axial direction, each push rod (51) is connected to the mounting bar (5) in a sliding manner, the end parts of the push rods (51) are fixed with push balls (52) with diameters larger than the sieve holes (31), a first spring (53) for pushing the push rods (51) to keep the push balls (52) to be trapped in the sieve holes (31) is arranged between the push rods (51) and the mounting bar (5), the mounting bar (5) is in threaded connection with a butting block (54) corresponding to the first spring (53), one end of the first spring (53) is butted on the push rods (51), the other end of the first spring is butted on the butting block (54), a mounting frame (6) for mounting the mounting bar (5) is fixed on the inner wall of the shell (2), and the mounting bar (5) is connected to the mounting frame (6, and a driving piece for driving the mounting bar (5) to move is arranged on the mounting rack (6).

2. The recycled concrete aggregate screening apparatus of claim 1, wherein: the abutting block (54) is convexly provided with a convex column (55) matched with the inner ring of the first spring (53), and the push rod (51) is provided with a concave hole (56) matched with the convex column (55).

3. The recycled concrete aggregate screening apparatus of claim 1, wherein: the driving piece comprises a screw rod (7) which is rotatably connected to the mounting frame (6) and is in threaded connection with the mounting bar (5).

4. The recycled concrete aggregate screening apparatus of claim 1, wherein: offer on mounting bracket (6) and supply gliding spout (61) of mounting bar (5), the driving piece is including wearing to establish in spout (61) and butt in double-screw bolt (8) of mounting bar (5), be provided with second spring (9) between the one end that double-screw bolt (8) were kept away from in mounting bar (5) and spout (61) inner wall.

5. The recycled concrete aggregate screening apparatus of claim 1, wherein: the push ball (52) is provided with a threaded hole (57), and the push rod (51) is in threaded connection with the threaded hole (57).

6. The recycled concrete aggregate screening apparatus of claim 1, wherein: the shell (2) comprises a bottom shell (22) and a top shell (21), one side of the top shell (21) is hinged to the bottom shell (22), and a material leakage port (221) is formed in the bottom of the bottom shell (22).

7. The recycled concrete aggregate screening apparatus of claim 6, wherein: the top shell (21) comprises a plurality of sub-shells (211), and the sub-shells (211) are provided with observation windows (10).

8. The recycled concrete aggregate screening apparatus of claim 7, wherein: divide shell (211) to be provided with 3, the middle part divide shell (211) to go up to rotate and be connected with handle (11), be fixed with fixed strip (12) on handle (11), the both ends of fixed strip (12) articulate there is inserted bar (13), both sides divide shell (211) to go up and set up jack (14) that supply inserted bar (13) to peg graft.