Gravel screening machine for construction

Abstract

The utility model discloses a gravel screening machine for construction, and relates to the technical field of engineering construction, the gravel screening machine for construction comprises a screening net cylinder, two large bearings, a gear ring and a transverse plate, the top of the gear ring is meshed with a gear B, the middle of the gear B is fixedly connected with a long shaft, the left end of the long shaft is sleeved with a gear C, and the left end of the long shaft is fixedly connected with the transverse plate. And an intermediate gear is connected between the gear C and the gear A in a meshed mode, knocking rods are installed at the bottom of the transverse plate at equal intervals, telescopic assemblies are fixedly connected to the two sides of the top of the transverse plate, cams abut against the two sides of the bottom of the transverse plate, and the cams are connected to the outer side of the long shaft in a sleeving mode. According to the gravel screening device, the knocking rod, the cam and the transverse plate are used in cooperation, in the gravel screening process, rotation of the cam can drive the transverse plate to conduct extrusion, the transverse plate can make the knocking rod hit the top of the screening net barrel along with release of the telescopic assembly after extrusion, and therefore gravel materials blocked in holes fall back into the screening net barrel again; the problem of hole blocking is solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to engineering construction technical field, concretely is a construction sandstone screening machine. BACKGROUND

[0002] In the process of engineering construction, cement needs to be used as cementitious material, sand and stone as aggregate, and water, admixture and mixed material are mixed according to a certain proportion to prepare concrete, and the particle size of sand and stone also determines whether the quality of concrete is qualified, and sand and stone need to be screened.

[0003] At present, a sandstone screening device is disclosed in Chinese patent with the publication number CN220215618U, in the disclosed technical solution, when passing through three different filter screens of the first filter screen plate, the second filter screen plate and the third filter screen plate, the corresponding sandstone can be dropped, so that three kinds of sandstone can be collected at the same time, the efficiency of sandstone screening is improved, the workload of the staff is reduced, and in addition, after screening, three groups of collecting boxes and collecting buckets can be used to collect the dropped sandstone at the lower end of the first filter screen plate, the second filter screen plate and the third filter screen plate, and the operation and use are relatively convenient.

[0004] In combination with the above disclosed technical solution and the prior art, in the screening process of the roller type, the sandstone is easy to be blocked in the holes of the screening roller, thereby affecting the screening efficiency of the sandstone, therefore, the utility model provides a construction sandstone screening machine, which can reduce the blocking of the sandstone in the holes of the roller during screening and ensure the screening efficiency of the sandstone. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a construction sandstone screening machine to solve the problems in the above background technology.

[0006] To achieve the above purpose, the utility model is implemented by the following technical solution: a construction sandstone screening machine, comprising a screening net cylinder, two large bearings, a gear ring and a cross plate, the inner side of the screening net cylinder is provided with a conveying auger, the left side of the conveying auger is fixedly connected with a gear A, the right side of the gear A is fixedly connected with a motor, the right side of the conveying auger is fixedly connected with a small auger, and the right side of the screening net cylinder is connected with a feeding pipe through a rotary joint.

[0007] The two large bearings are installed at the two ends of the screening net cylinder.

[0008] The gear ring is sleeved at the left end of the screening net cylinder, the top of the gear ring is engagedly connected with a gear B, the middle part of the gear B is fixedly connected with a long shaft, the left end of the long shaft is sleeved with a gear C, and the gear C and the gear A are engagedly connected with an intermediate gear.

[0009] The bottom of the transverse plate is equidistantly provided with knocking rods, both sides of the top of the transverse plate are fixedly connected with telescopic assemblies, both sides of the bottom of the transverse plate are abutted with cams, and the cams are sleeved on the outer side of the long shaft.

[0010] The top of the screening net cylinder is provided with a top plate, and the bottom of the screening net cylinder is provided with a bottom plate.

[0011] Optionally, the left side between the top plate and the bottom plate is fixedly connected with a mounting cover, the gear A, the intermediate gear and the gear C are mounted on the inner side of the mounting cover, and the motor is mounted on the left side of the mounting cover.

[0012] Optionally, the feeding pipe is an L-shaped pipe, a feeding hopper is communicated with the top end of the feeding pipe, and the small auger is arranged on the inner side of the outlet end of the feeding pipe.

[0013] Optionally, both sides of the bottom of the large bearing are fixedly connected with support rods, and the support rods are fixedly connected to the surface of the bottom plate.

[0014] Optionally, one end of the long shaft is rotatably connected with a mounting plate, and the mounting plate is fixedly connected to the bottom of the top plate.

[0015] Optionally, the surface of the bottom plate is provided with two discharge ports.

[0016] Optionally, the telescopic assembly comprises a fixed cylinder, the fixed cylinder is fixedly connected to the bottom of the top plate, a piston rod is slidably connected to the inner side of the fixed cylinder, a return spring is fixedly connected to the top of the piston rod, and the bottom end of the piston rod is connected with the transverse plate.

[0017] The technical effects and advantages of the present application are as follows:

[0018] 1. The cooperation of the knocking rod, the cam and the transverse plate enables the rotation of the cam to drive the transverse plate to be extruded, and after extrusion, the transverse plate is released along with the telescopic assembly, so that the knocking rod can hit the top of the screening net cylinder, thereby allowing the sand and stone material blocked in the hole to fall back into the screening net cylinder, and the problem of hole blocking is solved.

[0019] 2. The rotation of the screening net cylinder and the conveying auger enables the knocking rod to hit the screening net cylinder, and the problem of hole blocking in the screening net cylinder can be solved more conveniently. BRIEF DESCRIPTION OF DRAWINGS

[0020] Fig. 1 The present application is a structural schematic diagram;

[0021] Fig. 2 The present application is a disassembled schematic diagram of the screening net cylinder and the feeding pipe;

[0022] Fig. 3The utility model discloses a schematic view of horizontal plate, long axle and knock rod.

[0023] In the drawing: 1 screen cylinder, 2 conveying auger, 3 gear A, 4 motor, 5 small auger, 6 feeding pipe, 7 big bearing, 8 gear ring, 9 gear B, 10 long axle, 11 gear C, 12 intermediate gear, 13 horizontal plate, 14 knock rod, 15 telescopic component, 16 cam, 17 top plate, 18 bottom plate, 19 mounting cover. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments.

[0025] The utility model provides a kind of sandstone screening machine for construction as Figs. 1-3 As shown in a kind of sandstone screening machine for construction, including screen cylinder 1, the top of screen cylinder 1 is provided with top plate 17, the surface of bottom plate 18 is opened with two discharge openings, the bottom of screen cylinder 1 is provided with bottom plate 18, the left end of screen cylinder 1 is discharge outlet, the inside of screen cylinder 1 is equipped with conveying auger 2, conveying auger 2 is fixedly connected with gear A 3 on the left side, gear A 3 is fixedly connected with motor 4 on the right side, conveying auger 2 is fixedly connected with small auger 5 on the right side, screen cylinder 1 is connected with feeding pipe 6 on the right side through swivel joint, feeding pipe 6 is L-shaped pipe, feeding pipe 6 is communicated with feeding hopper on the top end, small auger 5 is arranged on the inside of feeding pipe 6 export end, the rotation of small auger 5 can be conducive to the sandstone in feeding pipe 6 into screen cylinder 1.

[0026] Two big bearings 7 for installing support screen cylinder 1, two big bearings 7 are installed at both ends of screen cylinder 1, and the two sides of the bottom of big bearing 7 are fixedly connected with support rod, and the surface of bottom plate 18 is fixedly connected with support rod, so that screen cylinder 1 can be supported by two big bearings 7.

[0027] Gear ring 8 capable of driving screen cylinder 1 to rotate, gear ring 8 is sleeved on the left end of screen cylinder 1, and gear ring 8 is engagedly connected with gear B 9 on the top, gear B 9 is fixedly connected with long axle 10 in the middle, one end of long axle 10 is rotatably connected with mounting plate, and the bottom of top plate 17 is fixedly connected with mounting plate, gear C 11 is sleeved on the left end of long axle 10, intermediate gear 12 is engagedly connected between gear C 11 and gear A 3, and the inner wall of mounting cover 19 is rotatably connected with both ends of intermediate gear 12.

[0028] The horizontal plate 13 arranged at the top of the screening net cylinder 1 is provided with knock rods 14 at the bottom in equal intervals, the knock rods 14 can knock the surface of the screening net cylinder 1 when being elastically impacted downward, so that the screening net cylinder 1 is vibrated by knocking in the process of rotating, and the sand and stones clogging the holes are shaken off, both sides of the top of the horizontal plate 13 are fixedly connected with telescopic assemblies 15, both sides of the bottom of the horizontal plate 13 abut against cams 16, the cams 16 are sleeved on the outside of the long shaft 10, the telescopic assembly 15 comprises a fixed cylinder, the fixed cylinder is fixedly connected to the bottom of a top plate 17, the inside of the fixed cylinder is slidably connected with a piston rod, the top of the piston rod is fixedly connected with a return spring, and the bottom end of the piston rod is connected with the horizontal plate 13.

[0029] The left side between the top plate 17 and the bottom plate 18 is fixedly connected with a mounting cover 19, the gear A3, the intermediate gear 12 and the gear C11 are all mounted on the inside of the mounting cover 19, the motor 4 is mounted on the left side of the mounting cover 19, and connecting bearings are mounted at the penetration positions of the conveying auger 2 and the long shaft 10, so that the stability of the conveying auger 2 and the long shaft 10 during rotation is guaranteed.

[0030] The working principle of the sand and stone screening machine for construction in the embodiment is as follows: the sand and stones for construction are introduced into the feeding pipe 6, the motor 4 is started, the motor 4 drives the conveying auger 2 to rotate, the small auger 5 rotates to send the sand and stones into the screening net cylinder 1, the sand and stones are screened along with the conveying of the conveying auger 2, the gear A3 rotates along with the conveying auger 2, the intermediate gear 12 and the gear C11 drive the long shaft 10 to rotate, the gear B9 on the long shaft 10 drives the screening net cylinder 1 to rotate through the gear ring 8, and the directions of the rotation of the screening net cylinder 1 and the conveying auger 2 are opposite, so that the sand and stones are more fully screened through the screening net cylinder 1.

[0031] In the process of rotating of the long shaft 10, the cams 16 can lift the horizontal plate 13, the horizontal plate 13 knocks the screening net cylinder 1 through the resilience of the telescopic assembly 15, so that the sand and stone particles clogging the holes are shaken off.

[0032] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and modifications can be made to these embodiments without departing from the principles and spirits of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A construction sand and gravel screening machine characterized by, Include: Screening net cylinder (1), the inner side of screening net cylinder (1) is provided with conveying screw (2), the left side of conveying screw (2) is fixedly connected with gear A (3), the right side of gear A (3) is fixedly connected with motor (4), the right side of conveying screw (2) is fixedly connected with small screw (5), the right side of screening net cylinder (1) is connected with feed pipe (6) through rotary joint; Two large bearings (7) are installed at both ends of screening net cylinder (1); Gear ring (8) is sleeved at the left end of screening net cylinder (1), and the top of gear ring (8) is engagedly connected with gear B (9), the middle part of gear B (9) is fixedly connected with long shaft (10), the left end of long shaft (10) is sleeved with gear C (11), and the gear C (11) and gear A (3) are engagedly connected with intermediate gear (12); Cross plate (13), the bottom of cross plate (13) is installed with knock rod (14) at equal intervals, both sides of the top of cross plate (13) are fixedly connected with telescopic assembly (15), both sides of the bottom of cross plate (13) are abutted with cam (16), and the cam (16) is sleeved on the outer side of long shaft (10); The top of screening net cylinder (1) is provided with top plate (17), and the bottom of screening net cylinder (1) is provided with bottom plate (18).

2. A construction sand and gravel screening machine according to claim 1, characterized in that: The left side between top plate (17) and bottom plate (18) is fixedly connected with mounting cover (19), gear A (3), intermediate gear (12) and gear C (11) are installed on the inner side of mounting cover (19), and motor (4) is installed on the left side of mounting cover (19).

3. A construction sand and gravel screening machine according to claim 1, characterized in that: The feed pipe (6) is L-shaped pipe, the top end of feed pipe (6) is communicated with feed hopper, and the small screw (5) is arranged on the inner side of the outlet end of feed pipe (6).

4. A construction sand and gravel screening machine according to claim 1, characterized in that: Both sides of the bottom of large bearing (7) are fixedly connected with support rod, and the support rod is fixedly connected to the surface of bottom plate (18).

5. A construction sand and gravel screening machine according to claim 1, characterized in that: One end of long shaft (10) is rotatably connected with mounting plate, and the mounting plate is fixedly connected to the bottom of top plate (17).

6. A construction sand and gravel screening machine according to claim 1, characterized in that: The surface of bottom plate (18) is provided with two discharge ports.

7. A construction aggregate screening machine as claimed in claim 1, wherein: The telescopic assembly (15) comprises a fixed cylinder, the fixed cylinder is fixedly connected to the bottom of top plate (17), a piston rod is slidably connected to the inner side of the fixed cylinder, a return spring is fixedly connected to the top of the piston rod, and the bottom end of the piston rod is connected with cross plate (13).

Images