CN217411385U - A sand and gravel screening device for concrete processing - Google Patents

Abstract

The utility model provides a grit screening plant for concrete processing relates to the concrete processing field. This grit screening plant for concrete processing, which comprises an outer shell, shell front end top fixedly connected with feed inlet, diapire fixedly connected with support frame in the shell, the diapire is close to the support frame position in the shell and is provided with the swash plate, the swash plate right-hand member link up the shell lateral wall, the inside grafting of support frame has a screening section of thick bamboo, support frame one end fixedly connected with ring gear is kept away from to screening section of thick bamboo front end, the diapire is located screening section of thick bamboo rear end fixedly connected with baffle in the shell, ring gear left end surface meshing has drive gear, drive gear rear end fixedly connected with worm. This grit screening plant for concrete processing when using, the worm drives the worm wheel and rotates, and the worm wheel drives reciprocal lead screw and rotates, and reciprocal lead screw drives the removal piece and removes, and the movable block drives the fixed plate and removes, and the fixed plate drives the inserted bar and carries out the sieve mesh mediation to a screening section of thick bamboo, has the advantage from the mediation.

Description

A sand and gravel screening device for concrete processing

technical field

The utility model relates to the technical field of concrete processing, in particular to a sand and gravel screening device for concrete processing.

Background technique

With the acceleration of urbanization construction, a large amount of concrete is required whether it is commercial housing or self-constructed housing. Concrete refers to the use of cement as a cementitious material, sand and gravel as aggregates, and water in a certain proportion. A structure or component with a certain structural strength obtained by curing and hardening, also known as cement concrete, in order to ensure the strength and durability of concrete, the mixing ratio of sand and cement needs to be in a suitable range, and the size of sand Can't be too big.

The traditional method is to throw the sand and gravel onto the screening net with a shovel. The inclined screening net screens the sand and gravel, and the sand and gravel falling to the bottom of the screen is screened again. This method is time-consuming and labor-intensive. When screening, the staff needs to use a sand and gravel separator for separation. The traditional sand and gravel separator often causes the mesh surface to block during use, which reduces the separation efficiency.

Utility model content

(1) Technical problems solved

In view of the deficiencies of the prior art, the utility model provides a sand and gravel screening device for concrete processing, which solves the problems mentioned in the above background technology.

(2) Technical solutions

In order to achieve the above purpose, the present utility model is achieved through the following technical solutions: a sand and gravel screening device for concrete processing, comprising a casing, the top of the front end of the casing is fixedly connected with a feeding port, and the inner bottom wall of the casing is fixedly connected with a support frame The inner bottom wall of the casing is provided with a sloping plate near the support frame, the right end of the sloping plate penetrates the side wall of the casing, a screening cylinder is inserted into the supporting frame, and the front end of the screening cylinder away from the supporting frame is fixedly connected with a gear ring. A baffle plate is fixedly connected to the rear end of the screening drum, a drive gear is engaged with the outer surface of the left end of the gear ring, a worm is fixedly connected to the rear end of the drive gear, a power gear is sleeved on the outer surface of the worm, and a rack is sleeved on the outer surface of the power gear. The inside of the rack is meshed with a drive motor under the power gear, the worm is meshed with a worm wheel on the outer surface of the rear end of the power gear, the left end of the worm wheel is fixedly connected with a reciprocating screw, the outer surface of the reciprocating screw is sleeved with a moving block, and the top of the moving block is fixedly connected with a The fixed plate, the right end of the fixed plate is connected with a plurality of insert rods in an array, and the outer surface of the moving block is located below the fixed plate and is sleeved with a guide rail.

Preferably, a total of two supporting frames are arranged inside the casing, and the supporting frame located at the front end of the inner wall of the casing is higher than the supporting frame located at the rear end of the inner wall of the casing.

Preferably, the side wall of the casing is provided with a discharge port that engages with the inclined plate, the screening drum and the support frame are rotatably connected, the screening drum is arranged at an inclined angle, the baffle is attached to the rear end of the screening drum, and the baffle The top is set in a semicircle shape.

Preferably, the inner side wall of the casing is provided with a fixing frame connected with the worm, the worm and the fixing frame are rotatably connected, and the driving motor is connected with the inner bottom wall of the casing.

Preferably, the inner side wall of the casing is provided with a carrier frame connected with the reciprocating screw rod, the reciprocating screw rod and the carrier frame are rotatably connected, and the moving block and the reciprocating screw rod are rotatably connected.

Preferably, the insert rod and the outer surface of the sieving drum are provided with sieve holes for meshing, the moving block and the guide rail form a sliding connection, and the guide rail is connected with the inner wall of the casing.

(3) Beneficial effects

The utility model provides a sand and gravel screening device for concrete processing. Has the following beneficial effects:

1. When the sand and gravel screening device for concrete processing is in use, the sand and gravel are poured into the screening drum from the feeding port, the drive motor drives the rack to rotate, the rack drives the power gear to rotate, the power gear drives the worm to rotate, and the worm rotates. It drives the driving gear to rotate, the driving gear drives the gear ring to rotate, and the gear ring drives the screening drum to screen the sand and gravel, which solves the time-consuming and labor-intensive problem of screening sand and gravel in the traditional way, and has the advantages of saving time and effort.

2. When the sand and gravel screening device for concrete processing is in use, the worm drives the worm wheel to rotate, the worm wheel drives the reciprocating screw to rotate, the reciprocating screw drives the moving block to move, the moving block drives the fixed plate to move, and the fixed plate drives the insertion rod to screen The sieve hole is dredged by the cylinder, which solves the problem that the traditional sand and gravel separator will cause the mesh surface to block and cause the separation efficiency to drop. It has the advantage of self-dredging.

Description of drawings

Fig. 1 is a three-axis survey drawing of the structure of the utility model;

2 is a schematic diagram of a structural baffle plate of the utility model;

Fig. 3 is the schematic diagram of the structural inclined plate of the utility model;

Fig. 4 is a schematic diagram of the utility model structural worm;

FIG. 5 is a schematic diagram of the structure of the gear ring of the present invention.

Among them, 1 shell, 2 feeding port, 3 supporting frame, 4 inclined plate, 5 screening drum, 6 toothed ring, 7 baffle plate, 8 driving gear, 9 worm, 10 power gear, 11 rack, 12 driving motor, 13 worm gear, 14 reciprocating screw, 15 moving block, 16 fixed plate, 17 insert rod, 18 guide rail.

Detailed ways

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the implementations. example. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present invention.

An embodiment of the present utility model provides a sand and gravel screening device for concrete processing, as shown in Figures 1-5, comprising a casing 1, a feeding port 2 is fixedly connected to the top of the front end of the casing 1, and a support is fixedly connected to the inner bottom wall of the casing 1 Frame 3, two support frames 3 are arranged inside the casing 1. The support frame 3 at the front end of the inner wall of the casing 1 is higher than the support frame 3 at the rear end of the inner wall of the casing 1. The setting of the support frame 3 is convenient for the movement of sand and gravel.

The inner bottom wall of the casing 1 is provided with a sloping plate 4 at a position close to the support frame 3. The side wall of the casing 1 is provided with a discharge port that engages with the sloping plate 4. The right end of the sloping plate 4 penetrates the side wall of the casing 1, and a screen is inserted into the supporting frame 3. Separating drum 5, the front end of the screening drum 5 is fixedly connected with a toothed ring 6 at one end away from the support frame 3, the inner bottom wall of the casing 1 is located at the rear end of the screening drum 5 and is fixedly connected with a baffle plate 7, and the screening drum 5 and the support frame 3 form a rotation Connected, the screening drum 5 is set at an inclined angle, the baffle 7 is attached to the rear end of the screening drum 5, the top of the baffle 7 is set in a semicircular shape, and the setting of the baffle 7 will not make the sand and gravel move out of the screening drum too quickly. 5. Make the sand and gravel screening more adequate.

The outer surface of the left end of the ring gear 6 is meshed with a drive gear 8, and the rear end of the drive gear 8 is fixedly connected with a worm 9. The inner side wall of the housing 1 is provided with a fixing frame connected with the worm 9. The worm 9 and the fixing frame form a rotational connection, and the outer surface of the worm 9 is connected. A power gear 10 is sleeved, a rack 11 is sleeved on the outer surface of the power gear 10, and a drive motor 12 is engaged with the inside of the rack 11 under the power gear 10. The material port 2 is poured into the screening drum 5, the drive motor 12 drives the rack 11 to rotate, the rack 11 drives the power gear 10 to rotate, the power gear 10 drives the worm 9 to rotate, the worm 9 drives the drive gear 8 to rotate, and the drive gear 8 drives the gear The ring 6 rotates, and the gear ring 6 drives the screening drum 5 to screen the sand and gravel. The worm 9 is located on the outer surface of the rear end of the power gear 10 and is meshed with a worm wheel 13. The left end of the worm wheel 13 is fixedly connected with a reciprocating screw 14. A moving block 15 is sleeved on the surface, and the inner side wall of the housing 1 is provided with a bearing frame connected with the reciprocating screw rod 14 .

The moving block 15 and the reciprocating screw rod 14 form a rotational connection, the top of the moving block 15 is fixedly connected with a fixed plate 16, the right end of the fixed plate 16 is connected with a plurality of insert rods 17 in an array, and the insert rod 17 and the outer surface of the screening cylinder 5 are provided with sieve holes The size meshes, the worm 9 drives the worm wheel 13 to rotate, the worm wheel 13 drives the reciprocating screw 14 to rotate, the reciprocating screw 14 drives the moving block 15 to move, the moving block 15 drives the fixed plate 16 to move, and the fixed plate 16 drives the insertion rod 17 to the screening cylinder 5 To clear the sieve holes, the outer surface of the moving block 15 is located below the fixed plate 16 and a guide rail 18 is sleeved.

working principle:

When the sand and gravel screening device for concrete processing is in use, the sand and gravel are poured into the screening cylinder 5 from the feeding port 2, the driving motor 12 drives the rack 11 to rotate, the rack 11 drives the power gear 10 to rotate, and the power gear 10 rotates. Drive the worm 9 to rotate, the worm 9 drives the drive gear 8 to rotate, the drive gear 8 drives the gear ring 6 to rotate, the gear ring 6 drives the screening drum 5 to screen the sand and gravel, and at the same time the worm 9 drives the worm wheel 13 to rotate, and the worm wheel 13 drives the reciprocating wire The rod 14 rotates, the reciprocating screw rod 14 drives the moving block 15 to move, the moving block 15 drives the fixed plate 16 to move, and the fixed plate 16 drives the insertion rod 17 to clear the screen holes of the screening drum 5 .

Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes and modifications can be made to these embodiments without departing from the principles and spirit of the present invention , alternatives and modifications, the scope of the present invention is defined by the appended claims and their equivalents.

Claims (6)

1. The utility model provides a grit screening plant for concrete processing, includes shell (1), its characterized in that: the top of the front end of the shell (1) is fixedly connected with a feed inlet (2), the inner bottom wall of the shell (1) is fixedly connected with a support frame (3), an inclined plate (4) is arranged at the position, close to the support frame (3), of the inner bottom wall of the shell (1), the right end of the inclined plate (4) penetrates through the side wall of the shell (1), a screening cylinder (5) is inserted into the support frame (3), one end, far away from the support frame (3), of the front end of the screening cylinder (5) is fixedly connected with a toothed ring (6), the inner bottom wall of the shell (1) is fixedly connected with a baffle (7) at the rear end of the screening cylinder (5), the outer surface of the left end of the toothed ring (6) is meshed with a driving gear (8), the rear end of the driving gear (8) is fixedly connected with a worm (9), the outer surface of the worm (9) is sleeved with a power gear (10), the outer surface of the power gear (10) is sleeved with a rack (11), a driving motor (12) is meshed with the inner portion, which is positioned below the power gear (10), the worm (9) is located that power gear (10) rear end surface meshes has worm wheel (13), worm wheel (13) left end fixedly connected with reciprocal lead screw (14), and the movable block (15) has been cup jointed to reciprocal lead screw (14) surface, and the fixed plate (16) of movable block (15) top fixedly connected with, fixed plate (16) right-hand member array is connected with a plurality of inserted bar (17), and movable block (15) surface is located fixed plate (16) below and has been cup jointed guide rail (18).

2. The sand screening device for concrete processing according to claim 1, characterized in that: the novel multifunctional portable handheld electronic device is characterized in that two support frames (3) are arranged inside the shell (1), and the support frame (3) located at the front end of the inner wall of the shell (1) is higher than the support frame (3) located at the rear end of the inner wall of the shell (1).

3. The sand screening device for concrete processing according to claim 1, characterized in that: the discharge gate with swash plate (4) meshing is seted up to shell (1) lateral wall, and screening section of thick bamboo (5) are constituteed with support frame (3) and are rotated and be connected, and screening section of thick bamboo (5) are inclination setting, and baffle (7) are laminated with screening section of thick bamboo (5) rear end, and baffle (7) top is the setting of semicircle form.

4. The sand screening device for concrete processing according to claim 1, characterized in that: the inner side wall of the shell (1) is provided with a fixing frame connected with the worm (9), the worm (9) and the fixing frame form a rotating connection, and the driving motor (12) is connected with the inner bottom wall of the shell (1).

5. The sand screening device for concrete processing according to claim 1, characterized in that: the inner side wall of the shell (1) is provided with a bearing frame connected with a reciprocating screw rod (14), the reciprocating screw rod (14) is rotationally connected with the bearing frame, and a moving block (15) is rotationally connected with the reciprocating screw rod (14).

6. The sand screening device for concrete processing according to claim 1, characterized in that: the inserted bar (17) and the outer surface of the screening barrel (5) are provided with meshes which are meshed in size, the moving block (15) and the guide rail (18) form sliding connection, and the guide rail (18) is connected with the inner wall of the shell (1).

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