CN211160629U

CN211160629U - Sand screening machine

Info

Publication number: CN211160629U
Application number: CN201922041107.1U
Authority: CN
Inventors: 任军卫; 陈永杰; 牛光杰; 赵明廷; 任君峰
Original assignee: Qingdao Huixin Concrete Co ltd
Current assignee: Qingdao Huixin Concrete Co ltd
Priority date: 2019-11-23
Filing date: 2019-11-23
Publication date: 2020-08-04
Anticipated expiration: 2029-11-23

Abstract

The utility model discloses a sand sieving machine, which belongs to the technical field of sand sieving equipment, and the key point of the technical scheme is that the sand sieving machine comprises a frame and a hopper arranged on the frame, wherein the upper part of the hopper is provided with a feed inlet, the lower part of the hopper is provided with a discharge outlet, a separation sieve is arranged below the discharge outlet, a grid plate horizontally arranged is arranged below the discharge outlet, and a plurality of vertical upward material breaking shafts are fixed on the upper surface of the grid plate; the separation screen is positioned below the grid plate and comprises a screen body and a screen mesh; the screen body inclines downwards from one end to the other end, and the screen mesh is arranged along the length direction of the screen body and is connected with the screen body in a sliding manner along the length direction of the screen body; the separating screen also comprises a reciprocating driving machine which drives the screen to reciprocate along the length direction of the screen body. The utility model discloses can be high-efficient convenient sieve the grit.

Description

Sand screening machine

Technical Field

The utility model belongs to the technical field of sieve sand equipment technique and specifically relates to a sand sieving machine is related to.

Background

The sand screening machine is a device commonly used in the concrete manufacturing process and is mainly used for screening stones with large volumes in sand from the sand, so that the sand using quality of concrete is guaranteed. The prior sand screening machine mainly utilizes a screen to screen sand mixed with stones.

When using sand sieving machine to sieve grit, the grit that adds in the screen cloth probably has the caking phenomenon, and grit and stone mix together, make the grit normally pass through the mesh of screen cloth, and then lead to unable grit and stone to separate, need the workman to carry out the breakage to the grit of caking this moment, and then guarantee the normal clear of grit screening.

The sand screening machine at present needs the manual work to carry out the breakage to the grit of caking in the screen cloth in the in-process of screening the grit, and the operation is inconvenient, and the efficiency of the work of screening is low.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art exists, the utility model aims at providing a sand sieving machine can be high-efficient convenient sieve the grit.

The above utility model discloses an above-mentioned utility model purpose can realize through following technical scheme: a sand screening machine convenient to clean comprises a rack and a hopper arranged on the rack, wherein a feed inlet is formed in the upper part of the hopper, a discharge outlet is formed in the lower part of the hopper, a separation screen is arranged below the discharge outlet, a horizontally arranged grid plate is arranged below the discharge outlet, and a plurality of vertical upward crushing shafts are fixed on the upper surface of the grid plate; the separation screen is positioned below the grid plate and comprises a screen body and a screen mesh; the screen body inclines downwards from one end to the other end, and the screen mesh is arranged along the length direction of the screen body and is connected with the screen body in a sliding manner along the length direction of the screen body; the separating screen also comprises a reciprocating driving mechanism which drives the screen to reciprocate along the length direction of the screen body.

Through adopting the above-mentioned technical scheme, the grit falls out from the discharge gate of hopper in adding the hopper, through the broken material axle of the vertical setting that sets up between separation sieve and hopper, the grit caking whereabouts in-process of profit, the material axle is broken the grit of caking to the contact impact force of grit caking, and then the grit after the breakage falls in the screen cloth, carry out reciprocating motion along screen frame length direction through reciprocating drive mechanism drive screen cloth, and then can be better sieve the grit in the screen cloth, the less grit of granule passes through the screen cloth more easily in making the sieve stone, thereby can be more high-efficient convenient sieve the stone.

The utility model discloses further set up to: the sand receiving box is arranged below the screen, the two sides of the bottom of the sand receiving box are provided with mutually parallel walking slide rails, the bottom of the sand receiving box is provided with walking trundles hinged with the sand receiving box around a horizontal axis, and the walking trundles are in sliding connection with the walking slide rails along the length direction of the walking slide rails.

Through adopting above-mentioned technical scheme, collect the grit that drops by the screen cloth through connecing the sand box, through the setting of walking slide rail and walking truckle, conveniently will connect the sand box to release from the screen cloth below, and then make things convenient for the staff to take the grit of collecting.

The utility model discloses further set up to: and a sand outlet is formed in one side of the sand receiving box, and a sand outlet door for sealing the sand outlet is arranged at the sand outlet.

Through adopting above-mentioned technical scheme, through having seted up the sand outlet and having been provided with in sand outlet department and carry out confined sand outlet door to the sand outlet in connecing one side of sand box to make things convenient for the staff to take the grit in the butt joint sand box more.

The utility model discloses further set up to: the lower end of the sand outlet door is hinged with the sand receiving box around a horizontal axis; connecting plates are respectively fixed on two sides of the upper end of the sand outlet door and two sides of the upper end of the sand receiving box, connecting holes penetrating through the connecting plates are formed in the surfaces of the connecting plates, and the connecting holes of the connecting plates are coaxially arranged; the connecting shaft is used for inserting the connecting hole.

Through adopting above-mentioned technical scheme, the sand outlet door adopts the articulated and fix a position the sand outlet door when the closure through the grafting of connecting axle and connecting plate with connecing the sand box to can convenient and fast open and close the sand outlet door.

The utility model discloses further set up to: the lower extreme of screen frame is provided with and is close to the downward take-up (stock) pan of one end slope of screen frame to keeping away from by the one end of screen frame, the below of take-up (stock) pan lower extreme is provided with and connects the stone case.

Through adopting above-mentioned technical scheme, be provided with by the one end that is close to the screen frame to keeping away from the one end slope decurrent take-up (stock) pan of screen frame and be provided with in the below of take-up (stock) pan lower extreme and connect the stone case through the lower extreme at the screen frame to make things convenient for the staff to collect the stone of screen cloth landing.

The utility model discloses further set up to: supporting blocks are fixed on two sides of the bottom of the stone receiving box.

Through adopting above-mentioned technical scheme, be fixed with the supporting shoe through the bottom both sides that connect the stone case, and then make the lower surface that connects the stone case have certain ground clearance through the supporting shoe to make things convenient for the staff to use transportation equipment such as fork truck to move and transport the stone case.

The utility model discloses further set up to: the reciprocating driving mechanism comprises a plurality of reset springs positioned at one end of the screen, and the reset springs are arranged along the length direction of the screen body; one end of the reset spring is fixedly connected with the screen, and the other end of the reset spring is fixedly connected with the screen body; one end of the screen body is provided with a cam abutted against the end face of the screen; and a driving motor for driving the cam to rotate around the eccentric shaft is arranged at the cam.

Through adopting above-mentioned technical scheme, drive the cam through driving motor and carry out eccentric rotation, and then utilize the butt effect of cam to screen cloth tip and reset spring's resilience force to make the screen cloth make reciprocating motion along screen frame length direction.

The utility model discloses further set up to: the feeding device is characterized by further comprising a feeding transmission line, wherein the discharging end of the feeding transmission line is located above the feeding hole of the hopper, and the feeding transmission line is inclined upwards from the feeding end to the discharging end of the feeding transmission line.

Through adopting above-mentioned technical scheme, through the setting of material loading transmission line, and then on the staff placed the material loading transmission line through the grit that will need the screening, and then can the efficient with the grit material loading hopper in.

To sum up, the utility model discloses a beneficial technological effect does:

1. the gravel added into the hopper falls out of a discharge port of the hopper, the gravel lumps are crushed by the contact impact force of the material shaft on the gravel lumps in the falling process of the gravel lumps through the vertically arranged material crushing shaft arranged between the separating screen and the hopper, the crushed gravel falls into the screen, the screen is driven to reciprocate along the length direction of the screen body through the reciprocating driving mechanism, the gravel in the screen can be better screened, and the sand with smaller particles in the sieve stones can more easily pass through the screen, so that the sieve stones can be more efficiently and conveniently screened;

2. the sand receiving box is used for collecting the sand falling from the screen, and the sand receiving box is conveniently pushed out from the lower part of the screen through the arrangement of the walking slide rail and the walking caster wheel, so that the collected sand can be conveniently taken by a worker;

3. the receiving tray which is inclined downwards from one end close to the screen body to one end far away from the screen body is arranged at the lower end of the screen body, and the stone receiving box is arranged below the lower end of the receiving tray, so that the convenience is brought to workers to collect stones falling from the screen.

Drawings

FIG. 1 is a schematic diagram of a sand screening machine;

FIG. 2 is a schematic view of a structure embodying a grid plate;

FIG. 3 is a schematic structural view of a separating screen;

FIG. 4 is a schematic structural view of a stone-catching box;

FIG. 5 is a schematic view of the structure of the flask.

In the figure, 1, a frame; 2. a hopper; 21. a feed inlet; 22. a discharge port; 3. a grid plate; 31. a material breaking shaft; 32. a connecting rod; 4. separating and screening; 41. a screen body; 42. screening a screen; 5. a reciprocating drive mechanism; 51. a return spring; 52. a cam; 53. a drive motor; 6. receiving a sand box; 61. a slide rail; 62. a walking caster; 63. a sand outlet; 64. a sand outlet door; 65. a connecting plate; 651. connecting holes; 66. a connecting shaft; 7. a take-up pan; 8. a stone receiving box; 81. a support block; 9. and a feeding transmission line.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

A sand screening machine convenient to clean, refer to fig. 1, includes frame 1, separation sieve 4 and material loading transmission line 9. A hopper 2 is fixed on the frame 1, and the hopper 2 is positioned above the separating screen 4 and is fixedly connected with the frame 1. The upper part of the hopper 2 is provided with a feed inlet 21, and the lower part of the hopper 2 is provided with a discharge outlet 22. The discharge end of the feeding transmission line 9 is positioned above the feed inlet 21 of the hopper 2, and the feeding transmission line 9 inclines upwards from the feed end to the discharge end of the feeding transmission line 9. When carrying out sieve stone screening, the grit that will carry out the screening is placed on the conveyer belt of material loading transmission line 9, and then transmits to hopper 2 through material loading transmission line 9 in, the grit drops on separating screen 4 by discharge gate 22, and then separates the grit and the stone in the grit through separating screen 4.

Referring to fig. 1 and 2, a horizontally disposed mesh plate 3 is disposed between the discharge port 22 and the separation screen 4. The upper surface of the grid plate 3 is fixed with a plurality of vertical upward material breaking shafts 31. The four corners of the grid plate 3 are fixed with connecting rods 32, the upper ends of the connecting rods 32 are fixedly connected with the hopper 2, and the grid plate 3 is arranged below the discharge port 22. The gravel dropped from the discharge port 22 drops onto the separating screen 4 below through the mesh plate 3, and the broken gravel is broken by the breaking shaft 31 by the kinetic energy of the gravel itself in the dropping process, so that the broken gravel dropped into the separating screen 4 is reduced.

Referring to fig. 1 and 3, the separating screen 4 includes a screen body 41 and a screen cloth 42. The screen body 41 is fixedly connected with the frame 1 and the screen body 41 is inclined downwards from one end to the other end. The screen 42 is disposed along the length of the screen body 41 and is slidably connected to the screen body 41 along the length of the screen body 41. One end of the separating screen 4 is provided with a reciprocating drive mechanism 5 for driving the screen 42 to reciprocate along the length direction of the screen body 41, and the reciprocating drive mechanism 5 comprises a plurality of return springs 51, a cam 52 and a drive motor 53 for driving the cam 52 to rotate. The return spring 51 is located at one end of the screen 42 and its length direction is arranged along the length direction of the screen body 41. One end of the return spring 51 is fixedly connected with the screen 42, and the other end of the return spring 51 is fixedly connected with the screen body 41. The cam 52 is abutted against the end face of the screen, the output shaft of the driving motor 53 is coaxially arranged with the eccentric shaft of the cam 52, the body of the driving motor 53 is fixedly connected with the screen body 41, and the output shaft of the driving motor 53 is fixedly connected with the cam 52. The cam 52 is driven by the driving motor 53 to rotate around the eccentric shaft, and the screen 42 reciprocates along the sliding direction under the abutting action of the cam 52 on the screen body 41 and the acting force of the return spring 51 on the screen 42, so that the sieve stones falling into the screen 42 can be better sieved. The sand with smaller particle volume in the sand falls below the screen 42 through the meshes of the screen 42, and the stones with larger particle volume in the sand cannot pass through the meshes of the screen 42, and then fall downwards along the length direction of the screen 42 and fall from the lower end of the screen 42.

Referring to fig. 1 and 4, a drag receiving box 6 is provided below the screen 42. The lower end of the screen body 41 is provided with a receiving tray 7 which inclines downwards from one end close to the screen body 41 to one end far away from the screen body 41, and a stone receiving box 8 is arranged below the lower end of the receiving tray 7. Supporting blocks 81 are fixed on two sides of the bottom of the stone receiving box 8. The sand passing through the screen 42 is collected by the sand-receiving box 6, and the rocks sliding down the screen 42 are collected by the rock-receiving box 8. Through the setting of supporting shoe 81, and then make the bottom surface that connects stone case 8 and ground have certain ground clearance to transportation equipment such as convenient to use fork truck moves and transports stone case 8.

Referring to fig. 1 and 5, the bottom of the drag receiving box 6 is provided at both sides thereof with traveling slide rails 61 parallel to each other. The bottom of the sand receiving box 6 is provided with a walking caster 62 hinged with the sand receiving box 6 around a horizontal axis, and the walking caster 62 is connected with the walking slide rail 61 in a rolling way along the length direction of the walking slide rail 61. Through the setting of walking truckle 62 and slide rail 61, and then can convenient and fast will connect sand box 6 to remove the below of separating screen 4, and then conveniently connect the grit in the sand box 6 to take.

Referring to fig. 5, a sand outlet 63 is formed at one side of the sand receiving box 6, and a sand outlet door 64 for closing the sand outlet 63 is provided at the sand outlet 63. The lower end of the sand outlet door 64 is hinged with the sand receiving box 6 around a horizontal axis, the outer surfaces of two sides of the upper end of the sand outlet door 64 are fixedly provided with connecting plates 65, two sides of the upper end of the sand outlet 63 are also fixedly provided with connecting plates 65, and the surface of each connecting plate 65 is provided with a connecting hole 651 penetrating through each connecting plate 65. When the sand outlet door 64 is rotated to the vertical state, the connection holes 651 on the connection plate 65 on the sand outlet door 64 are coaxial with the connection holes 651 on the connection plate 65 on the sand-receiving box 6. The sand screening machine further comprises a connecting shaft 66 for plugging the connecting hole 651. The connecting holes 651 of the connecting plates 65 on the sand receiving box 6 are inserted into the connecting holes 651 of the connecting plates 65 on the sand outlet door 64 through the connecting shafts 66, so that the sand outlet door 64 is positioned at the sand outlet 63, and the sand outlet 63 is closed. The sand outlet door 64 is positioned through the connecting shaft 66, so that the sand outlet 63 can be conveniently and quickly opened and closed, and the operation is more convenient.

The implementation principle of the embodiment is as follows:

on the grit material loading to the material loading transmission line 9 that will carry out the screening, transmit the grit to hopper 2 by material loading transmission line 9 in, the grit in hopper 2 is dropped by discharge gate 22 downwards, when grit process grid plate 3, utilizes broken material axle 31, relies on the grit of grit whereabouts in-process self to carry out the breakage, and then reduces the caking of grit. The drive motor 53 drives the cam 52 to eccentrically rotate, and the sieve 42 reciprocates along the length thereof by the return spring 51 and the cam 52. The sand with smaller particles in the screen 42 falls through the mesh openings of the screen 42 to the flask 6 below the screen 42. The great stone of granule can't pass through the mesh of screen cloth 42 among the screen cloth 42, follows the downward landing of screen cloth 42 length direction, is accepted the stone that drops by take-up (stock) pan 7, and then under take-up (stock) pan 7's effect, and the stone falls to and connects in the stone case 8.

The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims

1. The utility model provides a sand sieving machine, includes frame (1) and sets up hopper (2) in frame (1), feed inlet (21) have been seted up on the upper portion of hopper (2), the lower part of hopper (2) is provided with discharge gate (22), the below of discharge gate (22) is provided with separating screen (4), its characterized in that: a grid plate (3) which is horizontally arranged is arranged below the discharge hole (22), and a plurality of vertical upward material breaking shafts (31) are fixed on the upper surface of the grid plate (3); the separation screen (4) is positioned below the grid plate (3), and the separation screen (4) comprises a screen body (41) and a screen (42); the screen body (41) inclines downwards from one end to the other end, and the screen (42) is arranged along the length direction of the screen body (41) and is connected with the screen body (41) in a sliding manner along the length direction of the screen body (41); the separating screen (4) also comprises a reciprocating driving mechanism (5) which drives the screen (42) to reciprocate along the length direction of the screen body (41).

2. A sand screening machine according to claim 1, wherein: a sand receiving box (6) is arranged below the screen (42), walking slide rails (61) which are parallel to each other are arranged on two sides of the bottom of the sand receiving box (6), walking casters (62) which are hinged with the sand receiving box (6) around a horizontal axis are arranged at the bottom of the sand receiving box (6), and the walking casters (62) are in rolling connection with the walking slide rails (61) along the length direction of the walking slide rails (61).

3. A sand screening machine according to claim 2, wherein: a sand outlet (63) is formed in one side of the sand receiving box (6), and a sand outlet door (64) for sealing the sand outlet (63) is arranged at the sand outlet (63).

4. A sand screening machine according to claim 3, wherein: the lower end of the sand outlet door (64) is hinged with the sand receiving box (6) around a horizontal axis; connecting plates (65) are respectively fixed on two sides of the upper end of the sand outlet door (64) and two sides of the upper end of the sand receiving box (6), connecting holes (651) penetrating through the connecting plates (65) are formed in the surfaces of the connecting plates (65), and the connecting holes (651) of the connecting plates (65) are coaxially arranged; the connecting device also comprises a connecting shaft (66) for inserting the connecting hole (651).

5. A sand screening machine according to claim 1, wherein: the lower extreme of screen frame (41) is provided with and inclines decurrent take-up (7) to the one end of keeping away from screen frame (41) by the one end that is close to screen frame (41), stone-receiving box (8) are provided with to the below of take-up (7) lower extreme.

6. A sand screen as claimed in claim 5, wherein: supporting blocks (81) are fixed on two sides of the bottom of the stone receiving box (8).

7. A sand screening machine according to claim 1, wherein: the reciprocating driving mechanism (5) comprises a plurality of return springs (51) positioned at one end of the screen (42), and the return springs (51) are arranged along the length direction of the screen body (41); one end of the return spring (51) is fixedly connected with the screen (42), and the other end of the return spring (51) is fixedly connected with the screen body (41); one end of the screen body (41) is provided with a cam (52) which is abutted with the end face of the screen (42); and a driving motor (53) for driving the cam (52) to rotate around the eccentric shaft is arranged at the cam (52).

8. A sand screening machine according to claim 1, wherein: the automatic feeding device is characterized by further comprising a feeding transmission line (9), wherein the discharging end of the feeding transmission line (9) is located above the feeding hole (21) of the hopper (2), and the feeding transmission line (9) is inclined upwards from the feeding end to the discharging end of the feeding transmission line (9).