CN214917855U

CN214917855U - Grit screening plant for concrete mixing plant

Info

Publication number: CN214917855U
Application number: CN202120864751.3U
Authority: CN
Inventors: 向章强; 李平; 彭乔君
Original assignee: Chengdu Yijian Building Material Co ltd
Current assignee: Chengdu Yijian Building Material Co ltd
Priority date: 2021-04-25
Filing date: 2021-04-25
Publication date: 2021-11-30
Anticipated expiration: 2031-04-25

Abstract

The utility model relates to a grit screening plant for concrete mixing plant, it includes the sieve storage bucket, be provided with feed inlet and discharge gate on the sieve storage bucket, the sieve storage bucket internal rotation is provided with the sieve tray, the sieve tray sets up between feed inlet and discharge gate, the sieve mesh has been seted up on the terminal surface of sieve tray, be provided with the screen cloth in the sieve mesh of sieve tray, the slope of sieve tray sets up in the sieve storage bucket, be provided with in the sieve storage bucket and be used for driving sieve tray pivoted driving source, it is provided with the waste outlet just to be located between sieve tray and the feed inlet on the lateral wall of sieve storage bucket. This application has the convenient effect that makes equipment grit screening efficiency high of waste material clearance.

Description

Grit screening plant for concrete mixing plant

Technical Field

The application relates to the field of screening plant, especially relate to a grit screening plant for concrete mixing plant.

Background

The grit screening machine is used for sieving the grit of equidimension, and in civil engineering construction, the volume size of grit is different respectively, if the size difference of grit is too big, can directly influence the quality of engineering, consequently needs special equipment to sieve out the grit of equidimension not.

Chinese patent document with grant publication number CN211359576U discloses a grit screening plant, including screening cage, the bottom plate, base and rocker mechanism, it has the open-ended cavity to offer on the screening cage, the through-hole that a plurality of is used for screening the grit is seted up to the bottom of screening cage, the setting can be dismantled on the bottom plate to the screening cage, the bottom plate slides along the horizontal direction and sets up on the base, be provided with in the base and be used for making the bottom plate to be reciprocating linear motion's rocker mechanism on the base, it is reciprocating linear motion to drive the screening cage on the base through the bottom plate, thereby sieve the grit.

Aiming at the defects of the prior art, when the equipment screens the gravels, a lot of large gravels cannot be discharged and can be accumulated in the equipment, the operation can be continued after the equipment is stopped and cleaned, and the efficiency of screening the gravels of the equipment is low due to the inconvenience in cleaning wastes.

SUMMERY OF THE UTILITY MODEL

In order to solve the inconvenient problem that makes the inefficiency of equipment grit screening of equipment waste material clearance, this application provides a grit screening plant for concrete mixing plant.

The application provides a pair of grit screening plant for concrete mixing plant adopts following technical scheme:

the utility model provides a grit screening plant for concrete mixing plant, includes the sieve storage bucket, be provided with feed inlet and discharge gate on the sieve storage bucket, the sieve storage bucket internal rotation is provided with the sieve tray, the sieve tray sets up between feed inlet and discharge gate, the sieve mesh has been seted up on the terminal surface of sieve tray, be provided with the screen cloth in the sieve mesh of sieve tray, the slope of sieve tray sets up in the sieve storage bucket, be provided with in the sieve storage bucket and be used for driving sieve tray pivoted driving source, it is provided with the waste outlet just to be located between sieve tray and the feed inlet on the lateral wall of sieve storage bucket.

Through adopting above-mentioned technical scheme, during the use, start the driving source earlier, drive the sieve tray through the driving source and rotate, drop into the grit from feed inlet, because the slope of sieve tray sets up in the sieve feed cylinder, when the sieve tray rotates, the grit is because the gravity reason, can be at sieve tray surface relative slip, the grit that accords with the standard can pass the screen cloth and discharge from the discharge gate, large-scale grit waste material can be followed the waste outlet and discharged, the realization is cleared up the waste material in the sieve storage bucket, thereby make equipment can the continuous operation, greatly increased the efficiency of equipment grit screening.

Optionally, the driving source includes the motor, coaxial fixed the being provided with the actuating lever on the output shaft of motor, the fixed rod cover that is provided with of one end that the feed inlet was kept away from to the sieve tray, the axial slip setting that the actuating lever followed the sieve tray is in the rod cover, be provided with the locating part that is used for stopping actuating lever and rod cover and breaks away from on the rod cover.

Through adopting above-mentioned technical scheme, the screen tray uses the back for a long time, and easy wearing and tearing are dismantled the screen tray and are maintained or change through opening the locating part, increase the practicality.

Optionally, a first elastic element for driving the driving rod to move in a direction away from the rod sleeve sieve tray is arranged in the rod sleeve.

Through adopting above-mentioned technical scheme, make the sieve tray possess certain bradyseism effect through first elastic component, prevent to a certain extent that the grit from pounding the sieve tray.

Optionally, the fixed plate that is provided with of inner wall of sieve storage bucket, set up the blanking mouth with the sieve mesh intercommunication on the fixed plate, be provided with first mounting groove along the axial of sieve tray on the fixed plate, the sieve tray rotates and sets up in first mounting groove.

Through adopting above-mentioned technical scheme, the fixed plate plays the supporting role to the sieve tray, prevents to a certain extent that the sieve tray from receiving the too big sieve tray deformation of messenger of the impact force of grit.

Optionally, the endwise slip along the actuating lever in the first mounting groove of fixed plate is provided with the annular piece, keep away from the one end that is close to the feed inlet on the annular piece and seted up the second mounting groove along the axial of perpendicular sieve tray, the sieve tray rotates to set up in the second mounting groove and rotates with the annular piece to be connected, be provided with the second elastic component that is used for ordering about the annular piece to the direction motion of keeping away from first mounting groove diapire on the fixed plate.

Through adopting above-mentioned technical scheme, through the supporting role of second elastic component and annular piece, further increase the bradyseism effect of sieve tray.

Optionally, a limiting groove is formed in the first mounting groove of the fixing plate along the axial direction of the screen disc, a limiting block is arranged in the limiting groove of the fixing plate in a sliding mode, and the limiting block is fixedly connected with the annular block.

Through adopting above-mentioned technical scheme, prevent annular piece and fixed plate relative rotation to a certain extent to reduce the wearing and tearing of annular piece or fixed plate.

Optionally, one end of the fixing plate, which is far away from the feed inlet, is provided with an anti-plugging hole communicated with the limiting groove.

Through adopting above-mentioned technical scheme, prevent to a certain extent that tiny grit from piling up at the spacing inslot, causing the jam.

Optionally, a placing groove is formed in the bottom wall of the second mounting groove of the annular block, a rolling ball is arranged in the placing groove of the annular block in a rolling manner, and the rolling ball is connected with the sieve tray in a rolling manner.

Through adopting above-mentioned technical scheme, the ball can reduce the frictional force between sieve dish and the annular piece, improves the life of sieve dish and annular piece.

In summary, the present application includes at least one of the following beneficial technical effects:

1. when the sand screening device is used, the driving source is started firstly, the screen disc is driven to rotate by the driving source, sand is thrown in from the feeding port, the screen disc is obliquely arranged in the screen material cylinder, when the screen disc rotates, the sand can slide relatively on the surface of the screen disc due to gravity, the sand meeting the standard can pass through the screen mesh and be discharged from the discharging port, large-scale sand waste can be discharged from the waste outlet, the waste in the screen material cylinder can be cleaned, equipment can continuously work, and the sand screening efficiency of the equipment is greatly increased;

2. the bottom wall of the second mounting groove of the annular block is provided with a placing groove, a rolling ball is arranged in the placing groove of the annular block in a rolling manner, the rolling ball is connected with the sieve tray in a rolling manner, the rolling ball can reduce the friction force between the sieve tray and the annular block, and the service life of the sieve tray and the annular block is prolonged;

3. after the sieve tray is used for a long time, the sieve tray is easy to wear and tear, and the sieve tray is detached to be maintained or replaced by opening the limiting part, so that the practicability is improved.

Drawings

FIG. 1 is a cross-sectional view of the overall structure of an embodiment of the present application;

FIG. 2 is an enlarged view of portion A of FIG. 1;

fig. 3 is a partial structural schematic diagram of an embodiment of the present application, and is a structural schematic diagram mainly used for expressing a connection relationship between a sieve tray and a drive rod.

Description of reference numerals: 1. a base; 2. a material screening barrel; 21. a feed inlet; 22. a discharge port; 23. a first material guide plate; 24. a second material guide plate; 25. a waste outlet; 26. a fixing plate; 261. a first mounting groove; 262. a blanking port; 263. a limiting groove; 264. a second spring; 265. plugging holes are prevented; 27. a ring block; 271. a limiting block; 272. a second mounting groove; 273. a placement groove; 274. a ball bearing; 3. a sieve tray; 31. screening holes; 32. screening a screen; 33. a connecting plate; 34. a rod sleeve; 341. a chute; 342. a first spring; 4. a motor; 41. a drive rod; 411. and (7) clamping blocks.

Detailed Description

The present application is described in further detail below with reference to the attached drawings.

The embodiment of the application discloses grit screening plant for concrete mixing plant. Referring to fig. 1, a sand screening device for a concrete mixing plant comprises a base 1 and a screening barrel 2 placed on the base 1, wherein a feed inlet 21 is formed in the top wall of the screening barrel 2, a discharge outlet 22 is formed in the side wall of the screening barrel 2, a first material guide plate 23 and a second material guide plate 24 are welded in the screening barrel 2, the first material guide plate 23 and the second material guide plate 24 are both obliquely arranged, an opening is formed in the lowest end of the first material guide plate 23 along the vertical direction, and the lowest end of the second material guide plate 24 is welded at the lowest end of the discharge outlet 22; through second stock guide 24, prevent grit to a certain extent and pile up in sieve storage bucket 2.

Referring to fig. 1 and 2, a sieve tray 3 is rotatably arranged in a sieve material barrel 2, the sieve tray 3 is positioned between a feed port 21 and a discharge port 22, the sieve tray 3 is obliquely arranged, an opening of a first material guide plate 23 is close to the highest point of the sieve tray 3, a waste material outlet 25 is formed in the side wall of the sieve material barrel 2, and the waste material outlet 25 is arranged above the lowest point of the sieve tray 3; the sand enters from the highest point of the sieve tray 3, the impact force on the sieve tray 3 is reduced to a certain extent, the sand can slide from the high position to the low position of the sieve tray 3 due to the gravity factor, the waste is discharged from the waste outlet 25, and the filtering effect of the screen 32 is further improved.

Referring to fig. 1 and 2, a fixing plate 26 is welded to the inner wall of the sieve barrel 2, a first mounting groove 261 is formed in one end, close to the feed inlet 21, of the fixing plate 26 in the axial direction of the sieve tray 3, and a blanking port 262 communicated with the first mounting groove 261 is formed in one end, far away from the feed inlet 21, of the fixing plate 26 in the axial direction of the sieve tray 3.

Referring to fig. 2, an annular block 27 is slidably disposed in the first mounting groove 261 of the fixing plate 26 along the axial direction of the screen disc 3, a limiting groove 263 is disposed on the bottom wall of the first mounting groove 261 of the fixing plate 26 along the sliding direction of the annular block 27, a limiting block 271 is slidably disposed in the limiting groove 263 of the fixing plate 26, and one end of the limiting block 271 is welded to the annular block 27; the stopper 271 and the stopper groove 263 prevent the relative rotation of the ring block 27 and the fixing plate 26 to some extent, thereby reducing the abrasion of the ring block 27 or the fixing plate 26.

Referring to fig. 2, a second mounting groove 272 is formed in the annular block 27 along the axial direction perpendicular to the sieve tray 3, the sieve tray 3 is rotatably placed in the second mounting groove 272, a placing groove 273 is formed in a groove wall of the second mounting groove 272 close to one end of the sieve tray 3, a ball 274 is arranged in the placing groove 273, and the ball 274 is in rolling connection with the sieve tray 3; the balls 274 can reduce the friction between the sieve tray 3 and the mounting groove, prevent abrasion of the sieve tray 3 or the annular block 27 to a certain extent, and improve the service life of the sieve tray 3 and the annular block 27.

Referring to fig. 2, a second elastic member for driving the stopper 271 to move away from the inside of the limiting groove 263 is disposed in the limiting groove 263 of the fixing plate 26, the second elastic member is a second spring 264, one end of the second spring 264 abuts against the bottom of the limiting groove 263, and the other end abuts against the stopper 271.

Referring to fig. 2, an anti-plugging hole 265 communicated with the limiting groove 263 is formed in one end of the fixing plate 26, which is far away from the feed port 21, along the vertical direction; the blockage of the hole 265 is prevented to some extent by fine sand being accumulated in the stopper groove 263.

Referring to fig. 1, a driving source for driving the sieve tray 3 to rotate is arranged in the sieve material barrel 2, the driving source includes a motor 4, the motor 4 is welded on the bottom wall of the sieve material barrel 2, a driving rod 41 is coaxially welded on an output shaft of the motor 4, and the driving rod 41 penetrates through the second material guide plate 24 and is rotatably connected with the second material guide plate 24.

Referring to fig. 1 and 3, a sieve hole 31 is formed in the sieve tray 3, a sieve mesh 32 is embedded in the sieve hole 31 of the sieve tray 3, a connecting plate 33 is welded at the bottom end of the sieve tray 3, a rod sleeve 34 is welded on the connecting plate 33, and the driving rod 41 is arranged in the rod sleeve 34 along the axial direction of the sieve tray 3 in a sliding manner.

Referring to fig. 3, the driving rod 41 is provided with a limiting member for preventing the driving rod 41 from being separated from the sieve tray 3, the limiting member includes a fixture block 411, the fixture block 411 is fixed on a side wall of the driving rod 41 through a bolt, a sliding groove 341 is formed in a side wall of the rod sleeve 34 along an axial direction of the driving rod 41, and the fixture block 411 is arranged in the sliding groove 341 and slidably connected with the rod sleeve 34; after the sieve tray 3 is used for a long time, the sieve tray is easy to wear and tear, and the sieve tray 3 is detached to be maintained or replaced by opening the limiting part, so that the practicability is improved.

Referring to fig. 3, a first elastic member for driving the driving rod 41 to move away from the inside of the rod sleeve 34 is arranged in the rod sleeve 34, the first elastic member is a first spring 342, one end of the first spring 342 abuts against one end of the driving rod 41 away from the motor 4, and the other end abuts against the bottom wall of the inner wall of the rod sleeve 34; the screen plate 3 has a certain vibration reduction effect through the elastic action of the first spring 342, and the screen plate 3 is prevented from being broken by sand to a certain extent.

The implementation principle of grit screening plant for concrete mixing plant of the embodiment of this application is: during the use, start motor 4 earlier, rotate through motor 4 actuating lever 41 to drive sieve tray 3 and rotate, drop into the grit from feed inlet 21, because sieve tray 3 slope sets up in sieve storage bucket 2, the grit gets into sieve tray 3 and begins to filter from the peak of sieve tray 3 through first stock guide 23.

Because gravity factor, grit can be by the peak to the minimum landing on sieve tray 3 surface, because the rotation of sieve tray 3, increase sieve tray 3's filter effect, the grit that accords with the standard can pass screen cloth 32 and discharge from discharge gate 22, and large-scale grit waste material can be followed the waste outlet 25 of sieve tray 3 least significant end and is discharged, realizes clearing up the waste material in the sieve storage bucket 2 to make equipment can continuous operation, greatly increased the efficiency that equipment grit was sieved.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. The utility model provides a grit screening plant for concrete mixing plant, includes sieve storage bucket (2), be provided with feed inlet (21) and discharge gate (22) on sieve storage bucket (2), its characterized in that: sieve storage bucket (2) internal rotation is provided with sieve tray (3), sieve tray (3) set up between feed inlet (21) and discharge gate (22), sieve mesh (31) have been seted up on the terminal surface of sieve tray (3), be provided with screen cloth (32) in sieve mesh (31) of sieve tray (3), sieve tray (3) slope sets up in sieve storage bucket (2), be provided with in sieve storage bucket (2) and be used for driving sieve tray (3) pivoted driving source, just be located and be provided with waste outlet (25) between sieve tray (3) and feed inlet (21) on the lateral wall of sieve storage bucket (2).

2. The sand screening device for the concrete mixing plant according to claim 1, characterized in that: the driving source includes motor (4), coaxial fixed actuating lever (41) that is provided with on the output shaft of motor (4), the fixed rod cover (34) that is provided with of one end that feed inlet (21) was kept away from in sieve dish (3), axial slip setting in rod cover (34) along sieve dish (3) of actuating lever (41), be provided with on rod cover (34) and be used for preventing spacing that actuating lever (41) and rod cover (34) break away from.

3. The sand screening device for the concrete mixing plant according to claim 2, characterized in that: the rod sleeve (34) is internally provided with a first elastic piece used for driving the driving rod (41) to move towards the direction far away from the sieve tray (3) of the rod sleeve (34).

4. The sand screening device for the concrete mixing plant according to claim 1, characterized in that: the inner wall of sieve storage bucket (2) is fixed and is provided with fixed plate (26), set up blanking mouth (262) with sieve mesh (31) intercommunication on fixed plate (26), fixed plate (26) are gone up and are provided with first mounting groove (261) along the axial of sieve tray (3), sieve tray (3) rotate and set up in first mounting groove (261).

5. The sand screening device for the concrete mixing plant according to claim 4, wherein: the axial slip along actuating lever (41) in first mounting groove (261) of fixed plate (26) is provided with annular piece (27), keep away from the one end that is close to feed inlet (21) on annular piece (27) and seted up second mounting groove (272) along the axial of perpendicular sieve dish (3), sieve dish (3) rotate to set up in second mounting groove (272) and rotate with annular piece (27) and be connected, be provided with on fixed plate (26) and be used for driving about annular piece (27) to the second elastic component of the direction motion of keeping away from first mounting groove (261) diapire.

6. The sand screening device for the concrete mixing plant according to claim 5, characterized in that: a limiting groove (263) is formed in the first mounting groove (261) of the fixing plate (26) along the axial direction of the screen disc (3), a limiting block (271) is arranged in the limiting groove (263) of the fixing plate (26) in a sliding mode, and the limiting block (271) is fixedly connected with the annular block (27).

7. The sand screening device for the concrete mixing plant according to claim 6, characterized in that: one end of the fixing plate (26) far away from the feed inlet (21) is provided with a plug hole (265) communicated with the groove of the limiting block (271).

8. The sand screening device for the concrete mixing plant according to claim 5, characterized in that: the bottom wall of the second mounting groove (272) of the annular block (27) is provided with a placing groove (273), a rolling ball (274) is arranged in the placing groove (273) of the annular block (27), and the rolling ball (274) is connected with the sieve tray (3) in a rolling manner.