CN210357291U - Stone crushing and screening device for laboratory - Google Patents

Abstract

The utility model discloses a broken screening plant of stone that laboratory was used, include: a steel bracket; the bearing platform is fixed in the middle of the steel bracket; the crushing mechanism is arranged above the bearing platform; the screening mechanism is fixed below the bearing platform; the flexible connecting pipe is connected between the crushing mechanism and the screening mechanism; and the feeding hopper is arranged at the top of the steel bracket. The utility model solves the problems of secondary transportation, accumulation, excessive dust and the like of stones in a laboratory state, combines the two processes of crushing and screening of the stones, and can effectively improve the allocation rate of concrete materials by utilizing three improved jaw crushers to work simultaneously; meanwhile, the improved top-impact type vibrating screen machine can manually clean holes at any time, and effectively prevents the problem that the sieve holes are blocked by flaky stones.

Description

Stone crushing and screening device for laboratory

Technical Field

The utility model belongs to the technical field of test instrument, especially, relate to a broken screening plant of stone that laboratory was used.

Background

Concrete is the most commonly used material in the field of civil engineering, and in the actual field of engineering, concrete can be divided into concrete for construction engineering and laboratory concrete for teaching and experimental exploration. Compared with concrete used in engineering, laboratory concrete has the characteristics of small useful quantity, precise calculation and strict performance requirement, and a series of special machines such as a jaw crusher, a top impact type vibration screening machine, a forced mixer and the like are commonly used for carrying out stone crushing, aggregate screening, stirring and the like. The experimental coarse aggregate used in civil engineering has large self weight and much dust, is difficult to carry and clean, so that the work of crushing, screening and the like of coarse aggregates such as stones, pebbles and the like is extremely complicated, the time of at least hours is required for preparing a small amount of concrete in a laboratory, and the efficiency is low. In recent years, with the rise of automation technology and intelligent machinery industry, concrete configuration is also developing towards intellectualization, and a concrete configuration real-time monitoring system is established in a plurality of construction sites and laboratories, so that the configuration rate of concrete is greatly improved, but the concrete configuration real-time monitoring system is not suitable for small laboratories due to high cost. Therefore, the invention provides a convenient and quick laboratory stone crushing and screening machine with low cost, and solves the problems in the prior art.

SUMMERY OF THE UTILITY MODEL

The utility model discloses a solve the technical problem who exists among the above-mentioned background art, provide a broken screening system of stone in laboratory, utilize three modified jaw crusher and modified top to hit formula sieving machine and combine organically, only need the manual work to throw the material at the dog-house, can obtain the aggregate of a grading, convenient and fast can effectively improve the configuration speed of concrete coarse aggregate, the above-mentioned problem that exists among the fabulous solution prior art.

The utility model provides a technical scheme solves: a gravel crushing and screening device for a laboratory comprises:

a steel bracket; the bearing platform is fixed in the middle of the steel bracket; the crushing mechanism is arranged above the bearing platform; the screening mechanism is fixed below the bearing platform; the flexible connecting pipe is connected between the crushing mechanism and the screening mechanism; and the feeding hopper is arranged at the top of the steel bracket.

In a further embodiment, the crushing mechanism comprises: an annular discharge hole formed in the bearing platform; the circular truncated cone-shaped jaw plate is arranged in the middle of the annular discharge hole; and at least three groups of crushing assemblies which are uniformly arranged on the circumference of the circular truncated cone-shaped jaw plate, wherein the crushing assemblies can be tightly attached to the circular truncated cone-shaped jaw plate to form a closed loop when vibrating.

By adopting the technical scheme: the falling of the materials in the crushing process is reduced.

In a further embodiment, the crushing assembly comprises: a fixed seat fixed on the bearing platform; the eccentric shaft is arranged at the top of the fixed seat; the belt pulley and the flywheel are respectively sleeved at two ends of the eccentric shaft; the supporting plate is fixed in the middle of the eccentric shaft; the adjusting screw rod is connected between the bottom of the supporting plate and the bottom of the fixed seat; and a movable jaw plate fixed on the supporting plate in an inclined manner.

In a further embodiment, the sifting mechanism comprises: the screening subassembly that a plurality of groups distribute down in proper order from last, the screening subassembly includes: vibrating the outer frame; the screen is fixed at the bottom of the vibrating outer frame; the vibrating inner frame is clamped in the vibrating outer frame; and a plurality of blades connected between the inner wall of the vibrating inner frame and the circle center.

By adopting the technical scheme: the aperture of the screen mesh is sequentially reduced from top to bottom, and the screen mesh is screened layer by layer.

In a further embodiment, the vibration outer frame is provided with an arc-shaped hollowed-out track along the circumferential surface, one blade is provided with a handle extending outwards, and the handle penetrates through the arc-shaped hollowed-out track.

By adopting the technical scheme: the handle is moved manually, so that the blades drive the vibration inner frame to rotate in the vibration outer frame, and the blades can enable materials to fall to be screened in the scraping and rotating process.

In a further embodiment, the topmost screen assembly further comprises a top cover sealed on the top layer of the vibrating outer frame, and a circular hole is formed in the center of the top cover and communicated with the flexible connecting pipe.

The utility model has the advantages that: the laboratory stone crushing and screening device can solve the problems of secondary transportation, accumulation, excessive dust and the like of stones in a laboratory state, combines the two processes of crushing and screening of the stones, and can effectively improve the preparation rate of concrete materials by utilizing three improved jaw crushers to work simultaneously; meanwhile, the improved top-impact type vibrating screen machine can manually clean holes at any time, and effectively prevents the problem that the sieve holes are blocked by flaky stones.

Drawings

Fig. 1 is the utility model discloses in a stone crushing and screening device's that laboratory was used structural schematic.

Fig. 2 is a schematic structural diagram of the crushing assembly of the present invention.

Figure 3 is a schematic diagram of a screen assembly according to the present invention.

Each of fig. 1 to 3 is labeled as: the device comprises a steel support 1, a bearing platform 2, a crushing mechanism 3, a screening mechanism 4, a flexible connecting pipe 5, a feeding funnel 6, an annular discharge hole 301, a circular truncated cone-shaped jaw plate 302, a fixed seat 303, a supporting plate 304, an adjusting screw rod 305, a movable jaw plate 306, a vibrating outer frame 401, a vibrating inner frame 402, blades 403, an arc-shaped hollow track 404 and a handle 405.

Detailed Description

In the following description, numerous specific details are set forth in order to provide a more thorough understanding of the present invention. It will be apparent, however, to one skilled in the art, that the present invention may be practiced without one or more of these specific details. In other instances, well-known features have not been described in order to avoid obscuring the invention.

The utility model discloses a broken screening plant of stone that laboratory was used, include: the device comprises a steel support 1, a bearing platform 2, a crushing mechanism 3, a screening mechanism 4, a flexible connecting pipe 5, a feeding funnel 6, an annular discharge hole 301, a circular truncated cone-shaped jaw plate 302, a fixed seat 303, a supporting plate 304, an adjusting screw rod 305, a movable jaw plate 306, a vibrating outer frame 401, a vibrating inner frame 402, blades 403, an arc-shaped hollow track 404 and a handle 405.

As shown in fig. 1, the bearing platform 2 is fixed in the middle of the steel support 1, the crushing mechanism 3 is arranged above the bearing platform 2, the screening mechanism 4 is fixed below the bearing platform 2, the flexible connecting pipe 5 is connected between the crushing mechanism 3 and the screening mechanism 4, and the feeding funnel 6 is fixed on the top of the steel support 1 and is located right above the crushing mechanism 3.

As shown in fig. 2, the crushing mechanism 3 includes: annular discharge gate 301, round platform form jaw 302 and three broken subassemblies of group, round platform form jaw 302 is fixed cushion cap 2's intermediate position, annular discharge gate 301 is seted up the edge of round platform form jaw 302, three broken subassemblies of group surround annular discharge gate 301's outside evenly distributed, broken subassembly can hug closely when the vibration round platform form jaw 302 is synthetic a closed loop. The crushing assembly comprises: a fixed seat 303 fixed on the bearing platform 2; an eccentric shaft mounted on the top of the fixed base 303; the belt pulley and the flywheel are respectively sleeved at two ends of the eccentric shaft; a supporting plate 304 fixed at a middle position of the eccentric shaft; an adjusting screw 305 connected between the bottom of the supporting plate 304 and the bottom of the fixing base 303; and a movable jaw 306 fixed to the support plate 304 at an angle. The belt pulley is in transmission connection with a belt pulley on a rotating motor through the belt pulley, and the rotating motor and the adjusting screw 305 are all devices commonly used in jaw crushers in the prior art, so detailed description is omitted.

As shown in fig. 3, screening mechanism 4 includes the screen assembly that from the bottom up superposes in proper order and distributes, screen assembly includes: the vibration frame 401 of stack placing, the bottom of vibration frame 401 is provided with the screen cloth, vibration inside casing 402 joint is in inside the vibration frame 401, blade 403 is three, connects between vibration inside casing 402 inner wall and the centre of a circle uniformly. The vibration outer frame 401 is provided with an arc-shaped hollow track 404 along the circumferential surface, one blade 403 is provided with a handle 405 extending outwards, and the handle 405 penetrates through the arc-shaped hollow track 404. The screening assembly at the topmost end further comprises a top cover sealed at the top layer of the vibrating outer frame 401, a round hole is formed in the center of the top cover, and the round hole is communicated with the flexible connecting pipe 5.

The utility model discloses a theory of operation: adding a material to be crushed into a feeding hopper, moving the material downwards into a crushing mechanism under the action of gravity, enabling a rotating motor to work, opening and closing a movable jaw plate relative to a circular truncated cone-shaped jaw plate back and forth under the rotation of an eccentric shaft to complete crushing, dropping the crushed material into an annular discharge port, moving the crushed material downwards into a screening mechanism through a flexible connecting pipe, and enabling the movable jaw plate to be tightly attached to the circular truncated cone-shaped jaw plate to form a closed loop when the movable jaw plate is tightly closed; when the movable jaw plate is opened, partial materials are scattered on the bearing platform and manually picked up and placed into the feeding funnel; the material is taken to get into screening mechanism, shakes the handle for the blade drives the vibration inside casing at the vibration frame internal rotation, and the blade is scraping the in-process of changeing, can make the material whereabouts screen.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

The preferred embodiments of the present invention have been described in detail with reference to the accompanying drawings, however, the present invention is not limited to the details of the above embodiments, and the technical concept of the present invention can be modified to perform various equivalent transformations, which all belong to the protection scope of the present invention.

Claims (3)

1. The utility model provides a stone crushing and screening device that laboratory was used which characterized in that includes:

a steel bracket; the bearing platform is fixed in the middle of the steel bracket; the crushing mechanism is arranged above the bearing platform; the screening mechanism is fixed below the bearing platform; the flexible connecting pipe is connected between the crushing mechanism and the screening mechanism; the feeding hopper is arranged at the top of the steel bracket; the crushing mechanism includes: an annular discharge hole formed in the bearing platform; the circular truncated cone-shaped jaw plate is arranged in the middle of the annular discharge hole; the three groups of crushing assemblies are uniformly arranged on the circumference of the circular truncated cone-shaped jaw plate, and the crushing assemblies can be tightly attached to the circular truncated cone-shaped jaw plate to form a closed loop when vibrating; the crushing assembly comprises: a fixed seat fixed on the bearing platform; the eccentric shaft is arranged at the top of the fixed seat; the belt pulley and the flywheel are respectively sleeved at two ends of the eccentric shaft; the supporting plate is fixed in the middle of the eccentric shaft; the adjusting screw rod is connected between the bottom of the supporting plate and the bottom of the fixed seat; the movable jaw plate is obliquely fixed on the supporting plate; the screening mechanism includes: the screening subassembly that a plurality of groups distribute down in proper order from last, the screening subassembly includes: vibrating the outer frame; the screen is fixed at the bottom of the vibrating outer frame; the vibrating inner frame is clamped in the vibrating outer frame; and a plurality of blades connected between the inner wall of the vibrating inner frame and the circle center.

2. The stone crushing and screening device for the laboratory according to claim 1, wherein the vibrating outer frame is provided with an arc-shaped hollowed rail along the circumferential surface, one of the blades is provided with a handle extending outwards, and the handle penetrates through the arc-shaped hollowed rail.

3. The laboratory stone crushing and screening device as claimed in claim 1, wherein the topmost screen assembly further comprises a top cover sealed on the top layer of the vibrating outer frame, and a circular hole is formed in the center of the top cover and communicated with the flexible connecting pipe.

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