CN108480177B

CN108480177B - Centrifugal screening test device

Info

Publication number: CN108480177B
Application number: CN201810620032.XA
Authority: CN
Inventors: 施国栋; 陈旭东
Original assignee: Anhui Jianzhu University
Current assignee: Anhui Jianzhu University
Priority date: 2018-06-15
Filing date: 2018-06-15
Publication date: 2021-01-22
Anticipated expiration: 2038-06-15
Also published as: CN108480177A

Abstract

The invention discloses a centrifugal screening test device which comprises supporting legs, wherein supporting plates are fixedly connected to the tops of the supporting legs, stabilizing plates are fixedly connected between two opposite sides of the supporting legs, a first transverse plate and a second transverse plate are sequentially and fixedly connected between the two opposite sides of the supporting plates, a first rotating seat is vertically and fixedly connected to the top of the second transverse plate, a first transmission shaft is rotatably connected to the center of the first rotating seat, a stabilizing frame is rotatably connected to the top of the second transverse plate through a rotating frame, a second transmission shaft is rotatably connected to the center of the stabilizing frame, one end, close to the first rotating seat, of the second transmission shaft is fixedly connected with one end of the first transmission shaft through a cross coupling, and the surface of the second transmission shaft is connected with a chassis in a meshed mode through a first mounting seat. This kind of centrifugal screening test device has solved the sieve tray and has easily droed, the granule group is weighed loaded down with trivial details, the problem that screening efficiency is low, further promotes geotechnical test's technical level.

Description

Centrifugal screening test device

Technical Field

The invention relates to the technical field of experimental devices, in particular to a centrifugal screening experimental device.

Background

The screening test is one of the test items which are widely applied and have high labor intensity in any test for judging the grading condition of the particle size, and the existing civil vibration screening method has the defects that a screen disc is easy to fall off, the weighing of particle groups is complicated, the screening efficiency is low, the efficiency and the accuracy of the soil particle size screening are directly influenced, and the test result is unreliable.

Disclosure of Invention

Technical problem to be solved

Aiming at the defects of the prior art, the invention provides a centrifugal screening test device, which solves the problems of easy falling of a screen plate, complex weighing of grain groups and low screening efficiency, and further improves the technical level of geotechnical tests.

(II) technical scheme

In order to achieve the purpose, the invention is realized by the following technical scheme: a centrifugal screening test device comprises supporting legs, wherein supporting plates are fixedly connected to the tops of the supporting legs, stabilizing plates are fixedly connected between two opposite sides of the supporting legs, first transverse plates and second transverse plates are fixedly connected between two opposite sides of the supporting plates in sequence, first rotating seats are vertically and fixedly connected to the tops of the second transverse plates, first transmission shafts are rotatably connected to the centers of the first rotating seats, first belt pulleys are fixedly connected to one ends of the first transmission shafts, motors are fixedly connected to one sides of the tops of the stabilizing plates, second belt pulleys are fixedly connected to output shafts of the motors, the first belt pulleys are connected with the second belt pulleys through belt transmission, rotating frames are fixedly connected to one sides, close to the first rotating seats, of the tops of the second transverse plates, stabilizing frames are rotatably connected to the centers of the rotating frames, second transmission shafts are rotatably connected to the centers of the stabilizing frames, the one end fixed connection that the one end that the second transmission shaft is close to first rotation seat passes through cross-coupling and first transmission shaft, the surface of second transmission shaft is close to the first mount pad of one side fixedly connected with of steady rest, the surface engagement of first mount pad is connected with the chassis, one side fixedly connected with sieve on chassis, one side fixedly connected with hasp on chassis is kept away from on the surface of sieve, the surface axial sliding of second transmission shaft is connected with the second mount pad, the surface engagement of second mount pad is connected with the cover plate, the cover plate passes through hasp and sieve fixed connection, the top sliding connection of first diaphragm has fixed support seat, the surface and the fixed support seat center of second transmission shaft rotate to be connected.

Preferably, the top of the supporting plate is fixedly connected with a second rotating seat, the center of the second rotating seat is rotatably connected with a rotating shaft, and the surface of the rotating shaft is fixedly connected with a roller.

Preferably, the fixed support seat comprises a sliding plate, a support frame is fixedly connected to the top of the sliding plate, a clamping block is slidably connected to the bottom of the sliding plate, a sliding rod is fixedly connected to the top of the clamping block, the top of the sliding rod penetrates through the bottom of the sliding plate and is fixedly connected with a top plate, a first spring is fixedly connected to the surface of the sliding rod and is positioned between the top plate and the sliding plate, a fixed seat is fixedly connected to one side of the top of the sliding plate, a first pin shaft is fixedly connected between two opposite sides of the inner wall of the support frame, a rotating rod is rotatably connected to the surface of the first pin shaft, a fixed screw is connected to one end of the rotating rod in a threaded manner, a pressing block is fixedly connected to the bottom of the fixed screw, a nut is connected to the surface of the fixed screw and is positioned, the rotary handle is rotatably connected with one end of the connecting rod and one end of the rotating rod through a second pin shaft, the top of the supporting frame is fixedly connected with a rotary base, one side of the rotary base is rotatably connected with a rotary sleeve, one side of the rotary base is rotatably connected with a pressing rod, the surface of the pressing rod is connected with a pressing sheet in a sliding mode, and a second spring is fixedly connected between the top of the pressing sheet and the pressing rod and located on the surface of the pressing rod.

Preferably, the sieve plates are of a bottomed cylinder structure, the number of the sieve plates is six, the sieve plates are coaxially arranged, and the particle sizes of sieve holes of the sieve plates are gradually reduced from inside to outside layer by layer.

Preferably, the surfaces of the base plate and the cover plate are provided with connecting sockets matched with the sieve plate.

Preferably, the center of the base plate is provided with a transmission groove matched with the first mounting seat, and the center of the cover plate is provided with a transmission groove matched with the second mounting seat.

Preferably, the center of the rotating frame and the rotation center of the cross coupling are on the same straight line.

Preferably, one side of the bottom of the stabilizer bracket contacts the top of the second cross plate.

Preferably, a frequency converter is fixedly connected to one side, close to the motor, of the top of the stabilizing plate.

Preferably, the surface of the first transverse plate is provided with a sliding chute matched with the fixed support seat.

(III) advantageous effects

The invention provides a centrifugal screening test device. The method has the following beneficial effects:

(1) the centrifugal screening test device is characterized in that a first rotating seat is vertically and fixedly connected to the top of a second transverse plate, a first transmission shaft is rotatably connected to the center of the first rotating seat, a first belt pulley is fixedly connected to one end of the first transmission shaft, a motor is fixedly connected to one side of the top of a stabilizing plate, a second belt pulley is fixedly connected to the output shaft end of the motor, the first belt pulley is in transmission connection with the second belt pulley through a belt, a rotating frame is fixedly connected to one side, close to the first rotating seat, of the top of the second transverse plate, a stabilizing frame is rotatably connected to the center of the rotating frame, a second transmission shaft is rotatably connected to the center of the stabilizing frame, one end, close to the first rotating seat, of the second transmission shaft is fixedly connected with one end of the first transmission shaft through a cross coupler, and materials are conveniently added to a screen plate connected to the second transmission shaft through rotation of the second transmission shaft, the working efficiency of charging can be improved.

(2) This kind of centrifugal screening test device, the surface of second transmission shaft is close to the first mount pad of one side fixedly connected with of steady rest, the meshing of the surface of first mount pad is connected with the chassis, one side fixedly connected with sieve on chassis, one side fixedly connected with hasp on chassis is kept away from on the surface of sieve, the surface axial sliding connection of second transmission shaft has the second mount pad, the meshing of the surface of second mount pad is connected with the capping, the capping passes through hasp and sieve fixed connection, and one side fixedly connected with converter that the top of steadying plate is close to the motor adopts centrifugal screening to avoid the problem that the capping easily drops, has improved the efficiency of screening, changes the rotational speed of motor through the converter simultaneously, and sieve pivoted speed change makes the soil grain sieve go out more high-efficiently.

(3) This kind of centrifugal screening test device, the top sliding connection of first diaphragm has fixed bolster, the surface and the fixed bolster center of second transmission shaft rotate to be connected, realize detachable fixed stay to the second transmission shaft, are convenient for dismantle lid dish and sieve, have improved the convenience of screening test operation.

Drawings

FIG. 1 is a front view of the structure of the present invention;

FIG. 2 is a top view of the structure of the present invention;

FIG. 3 is a left side view of the structure of the present invention;

FIG. 4 is a schematic structural view of a fixing support seat according to the present invention;

fig. 5 is a cross-sectional view of a screen panel of the present invention.

In the figure: 1-supporting leg, 2-supporting plate, 3-stabilizing plate, 4-first transverse plate, 5-second transverse plate, 6-first rotating seat, 7-first transmission shaft, 8-first belt pulley, 9-motor, 10-second belt pulley, 11-belt, 12-rotating frame, 13-stabilizing frame, 14-second transmission shaft, 15-cross coupling, 16-first mounting seat, 17-base plate, 18-sieve plate, 19-hasp, 20-cover plate, 21-fixed supporting seat, 211-sliding plate, 212-supporting frame, 213-clamping block, 214-sliding rod, 215-top plate, 216-first spring, 217-fixed seat, 218-first pin shaft, 219-rotating rod, 2110-fixed screw rod, 2111-pressing block, 2112-nut, 2113-connecting rod, 2114-rotating handle, 2115-second pin shaft, 2116-rotating base, 2117-rotating sleeve, 2118-pressing rod, 2119-pressing sheet, 2120-second spring, 22-second rotating seat, 23-rotating shaft, 24-rolling wheel, 25-second mounting seat and 26-frequency converter.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-5, the present invention provides a technical solution: the utility model provides a centrifugal screening test device, including supporting leg 1, supporting leg 1's top fixedly connected with backup pad 2, fixedly connected with steadying plate 3 between the relative both sides of supporting leg 1, the first diaphragm 4 of fixedly connected with in proper order between the relative both sides of backup pad 2, second diaphragm 5, the first seat 6 that rotates of the vertical fixedly connected with in top of second diaphragm 5, the center of first seat 6 that rotates is connected with first transmission shaft 7, the first belt pulley 8 of one end fixedly connected with of first transmission shaft 7, top one side fixedly connected with motor 9 of steadying plate 3, the output shaft end fixedly connected with second belt pulley 10 of motor 9, first belt pulley 8 passes through belt 11 transmission with second belt pulley 10 and is connected, rotation through motor 9 can drive first transmission shaft 7 and rotate. One side fixedly connected with rotating turret 12 that the top of second diaphragm 5 is close to first rotating seat 6, the center of rotating turret 12 rotates and is connected with steady rest 13, bottom one side of steady rest 13 and the top contact of second diaphragm 5, the center of steady rest 13 rotates and is connected with second transmission shaft 14, the one end fixed connection of cross coupling 15 and first transmission shaft 7 is passed through to the one end that second transmission shaft 14 is close to first rotating seat 6, the center of rotating turret 12 and the center of rotation of cross coupling 15 are on same straight line, revolute rotating turret 12 through second transmission shaft 14 and rotate, be convenient for add the soil charge in the sieve, improve screening work efficiency. One side fixedly connected with first mount pad 16 that the surface of second transmission shaft 14 is close to stabilizer 13, the surface meshing of first mount pad 16 is connected with chassis 17, one side fixedly connected with sieve 18 of chassis 17, sieve 18 are the barrel structure of end, the quantity of sieve 18 is six, sieve 18 coaxial arrangement, the sieve mesh of sieve 18 is from inside to outside particle diameter successive grade degressive, realizes the mesh of screening step by step. One side fixedly connected with hasp 19 of chassis 17 is kept away from on the surface of sieve 18, and the surface axial sliding connection of second transmission shaft 14 has second mount pad 25, and the surface meshing of second mount pad 25 is connected with cover plate 20, and cover plate 20 passes through hasp 19 and sieve 18 fixed connection, and chassis 17, cover plate 20's surface sets up the connection socket with sieve 18 adaptation, has avoided the easy dropout problem of current sieve dish. The center of the base plate 17 is provided with a transmission groove matched with the first mounting seat 16, the center of the cover plate 20 is provided with a transmission groove matched with the second mounting seat 25, and the sieve plate 18 is driven to rotate by the base plate 17 and the cover plate 20. The top of first diaphragm 4 has fixed support seat 21, and the spout with fixed support seat 21 adaptation is seted up on the surface of first diaphragm 4. The surface of the second transmission shaft 14 is connected with the center of the fixed support seat 21 in a rotating manner, the top of the support plate 2 is fixedly connected with a second rotating seat 22, the center of the second rotating seat 22 is connected with a rotating shaft 23 in a rotating manner, and the surface of the rotating shaft 23 is fixedly connected with a roller 24 to ensure the stable rotation of the sieve plate 18. One side fixedly connected with converter 26 that the top of stabilizer plate 3 is close to motor 9 realizes the variable speed of motor 9 to reach the different slew velocity of sieve 18, improve screening efficiency.

The fixed support base 21 comprises a sliding plate 211 sliding on the top of the first horizontal plate 4, a support frame 212 fixedly connected on the top of the sliding plate 211, a clamping block 213 slidably connected on the bottom of the sliding plate 211, a sliding rod 214 fixedly connected on the top of the clamping block 213, a top of the sliding rod 214 penetrating through the bottom of the sliding plate 211 and fixedly connected with a top plate 215, a first spring 216 fixedly connected on the surface of the sliding rod 214 and located between the top plate 215 and the sliding plate 211, a fixed base 217 fixedly connected on one side of the top of the sliding plate 211, a first pin 218 fixedly connected between two opposite sides of the inner wall of the support frame 212, a rotating rod 219 rotatably connected on the surface of the first pin 218, a fixed screw 2110 in threaded connection with one end of the rotating rod 219, a pressing block 2111 fixedly connected on the bottom of the fixed screw 2110, a nut 2112 in threaded connection on the surface of, a rotating handle 2114 is rotatably connected to one side of the inner wall of the supporting frame 212, the rotating handle 2114 is rotatably connected to one end of the connecting rod 2113 and the rotating rod 219 through a second pin 2115, and friction between the sliding plate 211 and the first horizontal plate 4 is increased through the clamping block 213, so that the sliding plate 211 is fixed. The top of the supporting frame 212 is fixedly connected with a rotating base 2116, and one side of the rotating base 2116 is rotatably connected with a rotating sleeve 2117 for supporting the second transmission shaft 14. One side of the rotating base 2116 is rotatably connected with a pressing rod 2118, the surface of the pressing rod 2118 is slidably connected with a pressing sheet 2119, and a second spring 2120 is fixedly connected between the top of the pressing sheet 2119 and the pressing rod 2118 and positioned on the surface of the pressing rod 2118, so that the normal rotation of the second transmission shaft 14 is ensured.

In operation, by fixing the base plate 17, then fixing the screen plate 18 on one side of the base plate 17, by lifting one end of the second transmission shaft 14, one end of the second transmission shaft 14 rotates around the center of the rotating frame 12, screen material is placed in the screen plate 18, then the second mounting seat 25 slides into the designated position of the second transmission shaft 14, the cover plate 20 is engaged with the second mounting seat 25, the cover plate 20 is fixed with the screen plate 18 through the buckle 19, then the fixed support seat 21 is slid to the corresponding position of the second transmission shaft 14, the rotating handle 2114 is rotated, the press block 2111 presses down the top plate 215 by driving the rotating rod 219 to rotate, then the fixed support seat 21 is fixed on the surface of the first transverse plate 4 through the clamping block 213, the second transmission shaft 14 is placed on the rotating base 2116, the rotating sleeve 2117 and the press rod 2118 are sequentially rotated to fix the second transmission shaft 14, the motor 9 is started, the screen plate 18 rotates, and then the rotating speed of the motor, the screening efficiency is improved.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation. The use of the phrase "comprising one of the elements does not exclude the presence of other like elements in the process, method, article, or apparatus that comprises the element.

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

Claims

1. The utility model provides a centrifugal screening test device, includes supporting leg (1), backup pad (2), first rotation seat (6), second rotation seat (22), its characterized in that: the supporting leg comprises supporting legs (1), a supporting plate (2) is fixedly connected to the top of each supporting leg (1), a stabilizing plate (3) is fixedly connected between two opposite sides of each supporting leg (1), a first transverse plate (4) and a second transverse plate (5) are fixedly connected between two opposite sides of each supporting plate (2) in sequence, a first rotating seat (6) is vertically and fixedly connected to the top of each second transverse plate (5), a first transmission shaft (7) is rotatably connected to the center of each first rotating seat (6), a first belt pulley (8) is fixedly connected to one end of each first transmission shaft (7), a motor (9) is fixedly connected to one side of the top of each stabilizing plate (3), a second belt pulley (10) is fixedly connected to the output shaft end of each motor (9), each first belt pulley (8) is in transmission connection with the second belt pulley (10) through a belt (11), a rotating frame (12) is fixedly connected to one side, close to each first rotating seat (6), of the top of each, the center of the rotating frame (12) is rotatably connected with a stabilizing frame (13), the center of the stabilizing frame (13) is rotatably connected with a second transmission shaft (14), one end, close to the first rotating seat (6), of the second transmission shaft (14) is fixedly connected with one end of the first transmission shaft (7) through a cross-shaped coupling (15), one side, close to the stabilizing frame (13), of the surface of the second transmission shaft (14) is fixedly connected with a first mounting seat (16), the surface of the first mounting seat (16) is connected with a chassis (17) in a meshed manner, one side of the chassis (17) is fixedly connected with a sieve plate (18), one side, far away from the chassis (17), of the surface of the sieve plate (18) is fixedly connected with a hasp (19), the surface of the second transmission shaft (14) is axially and slidably connected with a second mounting seat (25), the surface of the second mounting seat (25) is connected with a cover disc (20), the cover disc (20) is fixedly connected with the sieve plate (18) through a hasp (19), the top of the first transverse plate (4) is connected with a fixed support seat (21) in a sliding mode, the surface of the second transmission shaft (14) is connected with the center of the fixed support seat (21) in a rotating mode, and one side, close to the motor (9), of the top of the stabilizing plate (3) is fixedly connected with a frequency converter (26);

the top of the supporting plate (2) is fixedly connected with a second rotating seat (22), the center of the second rotating seat (22) is rotatably connected with a rotating shaft (23), and the surface of the rotating shaft (23) is fixedly connected with a roller (24);

the fixed support seat (21) comprises a sliding plate (211), the top of the sliding plate (211) is fixedly connected with a support frame (212), the bottom of the sliding plate (211) is slidably connected with a clamping block (213), the top of the clamping block (213) is fixedly connected with a sliding rod (214), the top of the sliding rod (214) penetrates through the bottom of the sliding plate (211) and is fixedly connected with a top plate (215), the surface of the sliding rod (214) is positioned between the top plate (215) and the sliding plate (211) and is fixedly connected with a first spring (216), one side of the top of the sliding plate (211) is fixedly connected with a fixed seat (217), a first pin shaft (218) is fixedly connected between two opposite sides of the inner wall of the support frame (212), the surface of the first pin shaft (218) is rotatably connected with a rotating rod (219), and one end of the rotating rod (, the bottom of the fixing screw rod (2110) is fixedly connected with a pressing block (2111), the surface of the fixing screw rod (2110) and the top of the rotating rod (219) are in threaded connection with a nut (2112), the center of the fixed seat (217) is rotationally connected with a connecting rod (2113), one side of the inner wall of the supporting frame (212) is rotationally connected with a rotating handle (2114), the rotating handle (2114) is rotatably connected with one end of the connecting rod (2113) and one end of the rotating rod (219) through a second pin shaft (2115), the top of the supporting frame (212) is fixedly connected with a rotating base (2116), one side of the rotating base (2116) is rotatably connected with a rotating sleeve (2117), one side of the rotating base (2116) is rotatably connected with a pressure lever (2118), the surface of the pressure lever (2118) is connected with a pressing sheet (2119) in a sliding way, and a second spring (2120) is fixedly connected between the top of the pressing sheet (2119) and the pressing rod (2118) and positioned on the surface of the pressing rod (2118).

2. A centrifugal screen testing apparatus according to claim 1, wherein: the sieve plates (18) are of a cylindrical structure with a bottom, the number of the sieve plates (18) is six, the sieve plates (18) are coaxially arranged, the sizes of sieve holes of the sieve plates (18) are gradually reduced from inside to outside layer by layer, and the center of the rotating frame (12) and the rotating center of the cross coupling (15) are on the same straight line.

3. A centrifugal screen testing apparatus according to claim 1, wherein: the surface of chassis (17), lid dish (20) sets up the connection socket with sieve (18) adaptation, the transmission groove with first mount pad (16) adaptation is seted up at the center of chassis (17), the transmission groove with second mount pad (25) adaptation is seted up at lid dish (20) center.

4. A centrifugal screen testing apparatus according to claim 1, wherein: one side of the bottom of the stabilizing frame (13) is in contact with the top of the second transverse plate (5), and a sliding groove matched with the fixed supporting seat (21) is formed in the surface of the first transverse plate (4).