Gravel grinding device

Abstract

The utility model belongs to the technical field of macadam processing, and particularly relates to a macadam grinding device which comprises a grinding mechanism used for grinding macadam and a screening mechanism arranged below the grinding mechanism and used for screening powder. The crushing box is configured to be fixed above the screening mechanism, a grinding assembly driven by external power is arranged in the crushing box, and a first discharging hopper is connected to the bottom of the crushing box; the screening mechanism comprises a rack and a screening assembly connected to the rack, the upper portion of the screening assembly is connected with a feeding hopper used for receiving materials discharged from the first discharging hopper, and a second discharging hopper is arranged below the screening assembly. Wherein the grinding mechanism is used for crushing broken stones, one part of the broken stones are powdery stones, the other part of the broken stones are granular stones, the crushed stones fall into the screening mechanism below for screening, the granular stones are screened out, and the situation that the granular stones are mixed into the powdery stones, and the quality of powder is affected is avoided.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of broken stone processing, and particularly relates to a broken stone grinding device. BACKGROUND

[0002] The stone grinding machine is a kind of mechanical equipment for grinding stone into powder for building site, and in the process of building construction, the powdered stone is used, along with the continuous development of the construction industry, the stone grinding machine has been more and more widely applied.

[0003] Because the hardness of the mine broken stone is different, and the existing equipment directly discharges after grinding the broken stone, the ground powder is not screened, so that the directly discharged powder contains small granular stone, which affects the quality of the powder. Therefore, a broken stone grinding device is improved and designed. UTILITY MODEL CONTENTS

[0004] In view of the above-mentioned deficiencies in the prior art, the utility model provides a broken stone grinding device to solve the problems in the background art.

[0005] In order to solve the above technical problems, the utility model adopts the following technical scheme:

[0006] A broken stone grinding device, comprising a grinding mechanism for grinding broken stone and a screening mechanism arranged below the grinding mechanism for screening powder, the grinding mechanism comprising a crushing box arranged to be fixed above the screening mechanism, a grinding assembly driven by external power is arranged in the crushing box, and a first discharge hopper is connected to the bottom of the crushing box.

[0007] The screening mechanism comprises a rack and a screening assembly connected to the rack, the upper part of the screening assembly is connected with a feeding hopper for receiving the discharge from the first discharge hopper, and a second discharge hopper is arranged below the screening assembly.

[0008] Through the above structure design, the broken stone grinding device is composed of two parts of grinding mechanism and screening mechanism, wherein the grinding mechanism crushes the broken stone, part of the broken stone is powdered, and part of the broken stone is granular, the crushed stone falls into the screening mechanism below for screening, the granular stone is screened out, and the powdered stone is prevented from mixing with the granular stone, so as to affect the quality of the powder.

[0009] Further, the screening assembly comprises a screen box, the top of the screen box is open, the side of the screen box is provided with a broken stone outlet, and the bottom of the screen box is provided with a screen.

[0010] Further, the screen box is connected with a vibrator outside.

[0011] Through adopting the above structural design, the screening assembly specifically comprises a screen box and a vibrator, the vibrator drives the screen box to vibrate, prevents the granular stone from blocking the screen mesh at the bottom of the screen box, and can also improve the screening efficiency of the screen mesh.

[0012] Further, the screening mechanism further comprises a support adjusting mechanism connected between the screen box and the rack for adjusting the inclination angle of the screen box.

[0013] Further, the support adjusting mechanism comprises a top frame in a rectangular structure, one end of the top frame is hinged to the rack, the other end of the top frame is fixedly connected with an arc-shaped support plate, a plurality of adjusting holes are formed on the arc-shaped support plate along the length direction of the arc-shaped support plate, a mounting hole is arranged on the corresponding rack, the arc-shaped support plate is adjustably connected to the rack through bolts, and the screen box is connected to the top frame through springs.

[0014] Through the design of the support adjusting mechanism, the inclination angle of the screen box is adjusted, the inclination angle of the screen box is larger, the speed of the crushed stone on the screen mesh is faster, and thus the flow rate of the powder on the screen mesh is adjusted.

[0015] Further, one side of the crushed stone outlet of the screen box is connected with an arc-shaped guide plate.

[0016] Further, the outer wall of the crushing box is connected with a mounting plate, the grinding assembly comprises a pair of grinding rollers rotatably arranged, and one end of the grinding roller is connected to the motor through a speed reducer.

[0017] Compared with the prior art, the utility model has the following beneficial effects:

[0018] 1. The crushed stone grinding device is composed of a grinding mechanism and a screening mechanism, wherein the grinding mechanism crushes the crushed stone, part of the crushed stone is in a powder state, and part of the crushed stone is in a granular state; the crushed stone after crushing falls into the screening mechanism below to be screened, the granular stone is screened out, and the powder stone is prevented from mixing with the granular stone, thereby affecting the quality of the powder;

[0019] 2. The screening assembly specifically comprises a screen box and a vibrator, the vibrator drives the screen box to vibrate, prevents the granular stone from blocking the screen mesh at the bottom of the screen box, and can also improve the screening efficiency of the screen mesh. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 It is a three-dimensional structure schematic view (view angle one) of an embodiment of the crushed stone grinding device of the utility model;

[0021] Figure 2 It is a three-dimensional structure schematic view (view angle two) of an embodiment of the crushed stone grinding device of the utility model;

[0022] Figure 3It is a three-dimensional structure schematic view (view angle three) of the gravel powder grinding device embodiment of the utility model;

[0023] Figure 4 It is a three-dimensional structure schematic view of the screening mechanism in the gravel powder grinding device embodiment of the utility model;

[0024] The reference signs in the drawings of the specification include:

[0025] The powder grinding mechanism (1), the crushing box (11), the speed reducer (12), the powder grinding roller (13), the motor (14), the first lower hopper (15), the mounting plate (16), the screening mechanism (2), the rack (21), the second lower hopper (22), the screening assembly (23), the screen mesh (231), the feeding hopper (24), the support adjusting mechanism (25), the arc-shaped support plate (251), the adjusting hole (2511), the bolt (2512), the top frame (252), the spring (253), the guide plate (26), the vibrator (27). DETAILED DESCRIPTION

[0026] In order to enable the technicians in the art to better understand the utility model, the technical scheme of the utility model is further described below in combination with the drawings and embodiments.

[0027] Among them, the drawings are only used for example description, and the representation is only a schematic diagram, not a real object diagram, and cannot be understood as a limitation on the patent; in order to better illustrate the embodiments of the utility model, some components of the drawings will be omitted, enlarged or reduced, and do not represent the size of the actual product; for those skilled in the art, it is understandable that some known structures and their descriptions in the drawings can be omitted.

[0028] The same or similar reference signs in the drawings of the embodiments of the utility model correspond to the same or similar components; in the description of the utility model, it is understood that if the terms "upper", "lower", "left", "right", "inner", "outer" and the like appear, the orientation or positional relationship shown in the drawings is based on the orientation or positional relationship, and is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the indicated device or element must have a specific orientation, a specific orientation and operation, therefore the positional relationship description terms in the drawings are only used for example description, and cannot be understood as a limitation on the patent, for those skilled in the art, the specific meaning of the above terms can be understood according to the specific situation.

[0029] In the description of the utility model, unless another explicit provision and limitation, if the connection between the components appears the term "connection" and so on indicates the connection relation, the term should be understood broadly, for example, can be fixed connection, also can be detachable connection, or be integrated;Can be mechanical connection, also can be electrical connection;Can be directly connected, also can be indirectly connected through the intermediate medium, can be the communication inside two components or the interaction relation of two components.For the ordinary skilled in the art, the specific meaning of the above-mentioned term in the utility model can be understood according to the specific circumstances.

[0030] Embodiment one:

[0031] As Figures 1-4 The utility model discloses a kind of stone grinding devices, specifically, a kind of stone grinding device, including the grinding mechanism 1 for stone grinding and the screening mechanism 2 for screening powder material configured below grinding mechanism 1, grinding mechanism 1 includes;Configuration is fixed on the screening mechanism 2 above the crushing box 11, the crushing box 11 is provided with the grinding assembly driven by external power, the bottom of crushing box 11 is connected with first drop hopper 15;Screening mechanism 2 includes rack 21 and screening assembly 23 connected on rack 21, the upper portion of screening assembly 23 is connected with the feed hopper 24 for receiving the discharge in first drop hopper 15, the lower portion of screening assembly 23 is provided with second drop hopper 22.Through adopting the above structure design, the stone grinding device is composed of grinding mechanism 1 and screening mechanism 2 two parts, wherein grinding mechanism 1 is crushed to stone, and part of stone is powdered stone, and part is granular, and the stone after crushing falls into the screening mechanism 2 below and is screened, and the granular stone is screened out, to avoid that powdered stone is mixed with granular stone, affect the quality of powder material.

[0032] In the embodiment, screening assembly 23 includes sieve box, the top of sieve box is opened, the side of sieve box is provided with stone outlet, and the bottom of sieve box is provided with sieve screen 231.

[0033] In the embodiment, the outside of sieve box is connected with vibrator 27.Through adopting the above structure design, the specific structure of screening assembly 23 includes sieve box and vibrator 27, and vibrator 27 drives sieve box to vibrate, to prevent granular stone from blocking sieve screen 231 at the bottom of sieve box, and also can improve the screening efficiency of sieve screen 231.

[0034] In the embodiment, screening mechanism 2 further includes support adjusting mechanism 25 connected between sieve box and rack 21 for adjusting the inclination angle of sieve box.

[0035] In the embodiment, the support adjusting mechanism 25 comprises a rectangular top frame 252, one end of the top frame 252 is hinged to the rack 21, the other end of the top frame 252 is fixedly connected with an arc-shaped support plate 251, a plurality of adjusting holes 2511 are formed on the arc-shaped support plate 251 along the length direction of the arc-shaped support plate 251, a mounting hole is arranged on the corresponding rack 21, the arc-shaped support plate 251 is adjustably connected to the rack 21 through bolts 2512, and the screen box is connected to the top frame 252 through springs 253. By designing the support adjusting mechanism 25, the inclination angle of the screen box is adjusted, the inclination angle of the screen box is greater, the speed of the gravel on the screen 231 is faster, and thus the flow rate of the powder on the screen 231 is adjusted.

[0036] In the embodiment, the side of the gravel outlet of the screen box is connected with an arc-shaped guide plate 26. The outer wall of the crushing box 11 is connected with a mounting plate 16, the grinding assembly comprises a pair of grinding rollers 13 rotatably arranged, and one end of the grinding roller 13 is connected to the motor 14 through the speed reducer 12. The crushing box 11 is mounted on a suitable position of the factory building through the mounting plate 16 or is mounted through a support frame, which is not limited.

[0037] Working principle; the gravel is sent into the crushing box 11, the motor 14 drives the grinding roller 13 to rotate through the speed reducer 12, the gravel is crushed and ground, the crushed stone falls into the lower feed hopper 24 to enter the screen box for screening, the granular stone rolls out through the side gravel outlet, and the powdery stone directly falls into the lower second feed hopper 22 for discharging.

[0038] The above is only an embodiment of the present application, the circuit and electronic components and modules involved are prior art, and those skilled in the art can realize them without further description, the content protected by the present application does not involve improvement of software and methods. The common knowledge of the specific structure and characteristics in the scheme is not described in detail here, the ordinary skilled person in the art knows all the prior art in the technical field of the present application before the application date or the priority date, and has the ability to apply conventional experimental means before that date, the ordinary skilled person in the art can improve and implement the present scheme under the guidance of the present application, and some typical known structures or known methods should not be an obstacle for the ordinary skilled person in the art to implement the present application. It should be noted that, for those skilled in the art, without departing from the structure of the present application, a number of modifications and improvements can be made, which should also be considered as the protection scope of the present application, and these will not affect the effect and practicality of the present application.

Claims

1. A device for grinding and sizing aggregate, comprising a grinding mechanism (1) for grinding aggregate and a sizing mechanism (2) arranged below the grinding mechanism (1) for sizing the ground aggregate, characterized in that: The grinding mechanism (1) comprises: a crushing box (11) arranged above the screening mechanism (2), wherein the crushing box (11) is provided with a grinding assembly driven by external power, and the bottom of the crushing box (11) is connected with a first lower hopper (15); The screening mechanism (2) comprises a rack (21) and a screening assembly (23) connected to the rack (21), wherein the upper portion of the screening assembly (23) is connected with a feeding hopper (24) for receiving the discharge of the first lower hopper (15), and the lower portion of the screening assembly (23) is provided with a second lower hopper (22).

2. A rock crushing and grinding device as claimed in claim 1 wherein: The screening assembly (23) comprises a screen box, the top of the screen box is open, the side of the screen box is provided with a gravel outlet, and the bottom of the screen box is provided with a screen mesh (231).

3. A rock crushing and grinding device as claimed in claim 2 wherein: The screen box is connected with a vibrator (27) outside.

4. A rock crushing and grinding device as claimed in claim 2, wherein: The screening mechanism (2) further comprises a support adjusting mechanism (25) connected between the screen box and the rack (21) for adjusting the inclination angle of the screen box.

5. A rock crushing and milling device as claimed in claim 4 wherein: The support adjusting mechanism (25) comprises a rectangular top frame (252), one end of the top frame (252) is hinged to the rack (21), the other end of the top frame (252) is fixedly connected with an arc-shaped support plate (251), a plurality of adjusting holes (2511) are formed on the arc-shaped support plate (251) along the length direction of the arc-shaped support plate (251), a mounting hole is arranged on the corresponding rack (21), the arc-shaped support plate (251) is adjustably connected to the rack (21) through bolts (2512), and the screen box is connected to the top frame (252) through springs (253).

6. A rock crushing and grinding device as claimed in claim 2, wherein: The side of the gravel outlet of the screen box is connected with an arc-shaped guide plate (26).

7. The rock crushing and milling device of claim 1, wherein: The outer wall of the crushing box (11) is connected with a mounting plate (16), the grinding assembly comprises a pair of grinding rollers (13) rotatably arranged, and one end of the grinding roller (13) is connected with a speed reducer (12) and a motor (14).

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