A soil shaker

Abstract

The application relates to a soil vibrating screen, which comprises a shell, a screen in the shell, a cam arranged oppositely below the screen, a rotating connection between the screen and the cam, a plurality of long shafts of the cams arranged staggeredly, and a driving structure arranged on the screen and used for driving the cam to rotate. The application has the effects of improving the screening effect of the vibrating screen on soil and improving the overall screening efficiency.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of vibrating screening, in particular to a soil vibrating screen. BACKGROUND

[0002] Soil analysis is a qualitative and quantitative determination of the composition and / or physical and chemical properties of soil, which is the basis for studying soil formation and development, soil fertility evolution, soil resource evaluation, soil improvement and rational fertilization, and is also an important means for environmental quality evaluation in environmental science. Soil survey involves soil particle sampling and screening analysis.

[0003] According to the related technology in the above, the inventor believes that the soil sample for soil analysis needs to be screened to remove impurities, but the current vibrating screen generally achieves the screening effect by single horizontal shaking of the screen, which has poor overall screening effect, thereby reducing the efficiency of soil screening. SUMMARY

[0004] In order to improve the screening effect of the vibrating screen on the soil and improve the overall screening efficiency, the present application provides a soil vibrating screen.

[0005] The soil vibrating screen provided by the present application adopts the following technical solution:

[0006] A soil vibrating screen comprises a shell, a screen horizontally arranged inside the shell, a cam arranged opposite to the screen, the cam being rotationally connected with the screen, the long axes of a plurality of cams being arranged staggered, and a driving structure arranged on the screen and driving the cam to rotate.

[0007] By adopting the above technical solution, the driving structure can drive the cam to rotate, and the cam can vibrate the screen during rotation. Since the long axes of the plurality of cams are arranged staggered, different cams can vibrate the screen in turn, so that the screen is inclined, the screening effect of the vibrating screen on the soil is improved, and the overall screening efficiency is improved.

[0008] Optionally, the driving structure comprises a first linkage group rotationally connected with the screen, the first linkage group comprises a plurality of first linkage rods fixedly connected in a circumferential direction, a first connecting rod is hingedly arranged on the first linkage rod, one side of the first linkage group is provided with a second linkage group, the second linkage group comprises a plurality of second linkage rods fixedly connected in a circumferential direction, the second linkage rod and the first connecting rod are hingedly arranged one by one, one side of the second linkage group away from the first linkage group is provided with a third linkage group, the third linkage group comprises a plurality of third linkage rods fixedly connected in a circumferential direction, a second connecting rod is hingedly arranged on the third linkage rod, the second connecting rod and the second linkage rod are hingedly arranged one by one, a first driving member is arranged at a rotation center of the first linkage group to drive the first linkage group to rotate, a output shaft is fixedly connected horizontally on a rotation center of the third linkage group, and a linkage structure is arranged between the output shaft and the cam.

[0009] By adopting the above technical scheme, the first linkage group is driven to rotate by the first driving member, the first connecting rod is driven to rotate by the first linkage rod of the first linkage group, the second linkage rod of the second linkage group is driven to rotate by the first connecting rod, the second connecting rod is driven to rotate by the second linkage rod, the third linkage rod is driven to rotate by the second connecting rod, the output shaft is driven to rotate by the third linkage rod, and the first driving member is driven to move by the screen, the position of the cam is unchanged, and the output shaft is kept stationary and the first driving member is shaken with the screen by the first linkage group, the second linkage group and the third linkage group.

[0010] Optionally, the linkage structure comprises a first linkage bevel gear coaxially fixedly connected with the output shaft, a second linkage bevel gear is meshingly connected on one side of the first linkage bevel gear, a main rod is coaxially fixedly connected on the second linkage bevel gear, a split rod is coaxially fixedly connected on the cam, the split rod is rotationally connected with the shell, a third linkage bevel gear is coaxially fixedly connected at a position of the main rod relative to the split rod, a fourth linkage bevel gear is coaxially fixedly connected at a position of the split rod relative to the third linkage bevel gear, and the third linkage bevel gear and the fourth linkage bevel gear are meshingly connected.

[0011] By adopting the above technical scheme, the first linkage bevel gear is driven to rotate by the output shaft, the second linkage bevel gear is driven to rotate by the first linkage bevel gear, the main rod is driven to rotate by the second linkage bevel gear, the third linkage bevel gear is driven to rotate by the main rod, the fourth linkage bevel gear is driven to rotate by the third linkage bevel gear, the split rod is driven to rotate by the fourth linkage bevel gear, and the cam is driven to rotate by the split rod.

[0012] Optionally, the first drive member is coaxially and fixedly connected with a first cleaning bevel gear, the first cleaning bevel gear is connected with a second cleaning bevel gear above, the second cleaning bevel gear is coaxially and fixedly connected with a cleaning rod, the screen is horizontally provided with a reciprocating screw rod, the position of the reciprocating screw rod relative to the cleaning rod is coaxially and fixedly connected with a third cleaning bevel gear, the cleaning rod is coaxially and fixedly connected with a fourth cleaning bevel gear, the third cleaning bevel gear and the fourth cleaning bevel gear are meshed, and the reciprocating screw rod is meshed with a cleaning plate.

[0013] By adopting the above technical scheme, the first drive member drives the first cleaning bevel gear to rotate, the first cleaning bevel gear drives the second cleaning bevel gear to rotate, the second cleaning bevel gear drives the cleaning rod to rotate, the cleaning rod drives the fourth cleaning bevel gear to rotate, the fourth cleaning bevel gear drives the third cleaning bevel gear to rotate, thereby driving the reciprocating screw rod to rotate, and the reciprocating screw rod drives the cleaning plate to reciprocate on the upper surface of the screen, so that the soil on the screen is stirred, and the screening effect is improved.

[0014] Optionally, the sub-rod near the discharge end of the shell comprises a first sub-portion near the main rod and a second sub-portion away from the main rod, the first sub-portion and the second sub-portion are coaxially arranged, the first sub-portion is coaxially and fixedly connected with a first adjusting bevel gear near the second sub-portion, the second sub-portion is coaxially and fixedly connected with a second adjusting bevel gear near the first sub-portion, a third adjusting bevel gear is horizontally arranged between the first adjusting bevel gear and the second adjusting bevel gear, a lifting screw is coaxially and threadedly connected to the third adjusting bevel gear, the bottom end of the lifting screw is provided with a second drive member for driving the lifting screw to rotate, and the lifting screw is meshed with the third adjusting bevel gear.

[0015] By adopting the above technical scheme, when the screen is arranged to be inclined downward toward the discharge end side, the screen is vibrated by the cam near the feeding end side, and at this time, in order to reduce the inclination of the screen to restore to the horizontal state, the cam near the discharge end side is stopped from rotating, the lifting screw is driven to rotate by the second drive member, the lifting screw drives the third adjusting bevel gear to move downward, so that the first adjusting bevel gear and the third adjusting bevel gear are disengaged, and the second adjusting bevel gear and the third adjusting bevel gear are disengaged.

[0016] Optionally, the lower surface of the screen is vertically fixedly connected to a top plate relative to the position of the cam, the distance between the top plate and the rotation center of the cam is smaller than the long axis of the cam, and the side wall of the screen is horizontally fixedly connected to a first elastic member, and the other end of the first elastic member is fixedly connected to the outer shell.

[0017] By adopting the above technical solution, the top plate can be abutted under the rotation of the cam, and the cam drives the top plate to move toward the side away from the cam, thereby driving the screen to move in the horizontal direction, thereby improving the screening effect of the screen.

[0018] Optionally, a first vertical rod is vertically provided on the side below the screen near the feed end, a first sleeve is sleeved on the outer side of the bottom end of the first vertical rod, a second elastic member is vertically provided on the bottom end of the first vertical rod, and the top of the first vertical rod is hinged to the screen, a second vertical rod is vertically provided on the side below the screen near the discharge end, a second sleeve is sleeved on the outer side of the bottom end of the second vertical rod, a third elastic member is vertically provided on the bottom end of the second vertical rod, and the top of the second vertical rod is hinged to the screen, and when the second elastic member and the third elastic member are both in a free state, the top of the first vertical rod is higher than the top of the second vertical rod.

[0019] By adopting the above technical solution, the screen is supported by the first vertical rod and the second vertical rod, and when the second elastic member and the third elastic member are in a free state, the screen is driven downward by the second elastic member, and the third elastic member pushes the screen upward, thereby setting the screen at an angle to facilitate the falling of the material.

[0020] Optionally, when the second elastic member and the third elastic member are in a free state, the distance between the lower surface of the screen and the rotation center of the cam is smaller than the long axis of the cam.

[0021] By adopting the above technical solution, during the process of discharging materials in an inclined state of the screen, the screen is vibrated by the cam to increase the falling speed of the materials.

[0022] In summary, this application includes at least one of the following beneficial technical effects:

[0023] 1. The driving structure can drive the cam to rotate, and the cam vibrates the screen during the rotation process. Since the long axes of multiple cams are staggered, different cams vibrate the screen in turn, causing the screen to tilt, thereby improving the screening effect of the vibrating screen on the soil and improving the overall screening efficiency.

[0024] 2. The first linkage group is driven to rotate by the first driving member, the first linkage rod of the first linkage group drives the first connecting rod to rotate, the first connecting rod drives the second linkage rod of the second linkage group to rotate, and the second linkage rod drives the second connecting rod to rotate, so that the second connecting rod drives the third linkage rod to rotate, and in turn drives the output shaft to rotate, and because the screen generates movement, the first driving member is moved, and the position of the cam is unchanged, and in turn the first driving member is moved with the screen through the first linkage group, the second linkage group and the third linkage group, so that the output shaft is stationary and the first driving member is shaken with the screen.

[0025] 3. When the screen is inclined downward to the side of the discharge end, the screen is vibrated by the cam near the side of the feeding end, and at this time, in order to reduce the inclination of the screen to restore to the horizontal state, the cam near the side of the discharge end is stopped from rotating, the third adjusting bevel gear is driven downward by the second driving member, so that the first adjusting bevel gear and the third adjusting bevel gear are disengaged, and the second adjusting bevel gear and the third adjusting bevel gear are disengaged. BRIEF DESCRIPTION OF DRAWINGS

[0026] Figure 1 is a schematic diagram of the overall structure of a soil vibrating screen in the embodiment of the present application;

[0027] Figure 2 is a sectional view of a soil vibrating screen in the embodiment of the present application;

[0028] Figure 3 is a schematic diagram of the structure at the position of the cam of a soil vibrating screen in the embodiment of the present application;

[0029] Figure 4 is a schematic diagram of the structure at the position of the vibrating structure of a soil vibrating screen in the embodiment of the present application;

[0030] Figure 5 is a schematic diagram of the structure at the position of the first linkage group, the second linkage group and the third linkage group of a soil vibrating screen in the embodiment of the present application;

[0031] Figure 6 is a schematic diagram of the structure at the position of the support structure of a soil vibrating screen in the embodiment of the present application.

[0032] Explanation of the accompanying symbols: 1. Shell; 11. Feed port; 12. Discharge port; 13. Feed end; 14. Discharge end; 15. Storage box; 17. First spring; 2. Screen; 21. Rotating rod; 22. Top plate; 3. Vibration structure; 31. First rotating motor; 32. First linkage group; 321. First linkage rod; 322. First connecting rod; 33. Second linkage group; 331. Second linkage rod; 34. Third linkage group; 341. Third linkage rod; 342. Output shaft; 343. Second connecting rod; 35. First linkage bevel gear; 36. Second linkage bevel gear; 37. Cam; 38. Splitting rod; 381. Fourth linkage bevel gear ;382. First division;383. Second division;384. First adjusting bevel gear;385. Second adjusting bevel gear;386. Third adjusting bevel gear;387. Lifting screw;388. Second rotating motor;39. Main rod;391. Third linkage bevel gear;4. Support structure;41. First vertical rod;42. First sleeve;43. Second spring;44. Second vertical rod;45. Second sleeve;46. Third spring;5. Hybrid structure;51. First cleaning bevel gear;52. Reciprocating screw;53. Second cleaning bevel gear;54. Cleaning plate;55. Third cleaning bevel gear;56. Fourth cleaning bevel gear;57. Cleaning rod. DETAILED DESCRIPTION

[0033] The following is combined with Figures 1-6 This application is described in further detail.

[0034] The embodiment of the present application discloses a soil vibrating screen. Figure 1 、 Figure 2 A soil vibrating screen includes a shell 1, a feed port 11 is opened on the upper part of one side of the shell 1, and a discharge port 12 is opened on the side wall of the shell 1 opposite to the feed port 11, the end of the shell 1 close to the feed port 11 is the feed end 13, and the end of the shell 1 close to the discharge port 12 is the discharge end 14, and the length direction is along the line connecting the feed end 13 to the discharge end 14.

[0035] Reference Figure 2 、 Figure 3 A screen 2 is horizontally arranged inside the housing 1. A vibration structure 3 is provided below the screen 2 to drive the screen 2 to shake. A support structure 4 is also provided below the screen 2 to support the screen 2. A hybrid structure 5 is provided above the screen 2 to drive the hybrid structure above the screen 2 to improve the soil screening effect. A storage box 15 is provided below the screen 2. The top wall of the storage box 15 is provided with an opening, and the soil screened by the screen 2 can enter the storage box 15.

[0036] Reference Figure 4 、 Figure 5The vibration structure 3 includes a first rotating motor 31 fixedly connected to the screen 2, and a first linkage group 32 is fixedly connected to the motor shaft of the first rotating motor 31. The first linkage group 32 includes three first linkage rods 321 equidistantly arranged along the circumference of the motor shaft of the first rotating motor 31. The first linkage rod 321 is fixedly connected to the motor shaft of the first rotating motor 31, and a first connecting rod 322 is hingedly provided on the motor shaft of the first rotating motor 31 away from the first linkage rod 321.

[0037] A second linkage group 33 is provided on the side of the first linkage group 32 facing away from the first rotating motor 31. The second linkage group 33 includes three second linkage rods 331 equidistantly arranged along the circumferential direction. The three second linkage rods 331 are relatively fixedly connected, and one end of the second linkage rod 331 close to the first connecting rod 322 is respectively opposite to the first connecting rod 322 and hingedly arranged.

[0038] A third linkage group 34 is provided on the side of the second linkage group 33 facing away from the first linkage group 32. The third linkage group 34 includes three third linkage rods 341 equidistantly arranged along the circumferential direction. One end of the third linkage rod 341 that is relatively close is fixedly connected to the output shaft 342. The end of the third linkage rod 341 that is away from the output shaft 342 is hingedly provided with a second connecting rod 343. The second connecting rod 343 and the third linkage rod 341 are opposite to each other and hingedly arranged one by one.

[0039] Reference Figure 3 、 Figure 4 A first linkage bevel gear 35 is coaxially fixedly connected to the output shaft 342, and a second linkage bevel gear 36 is coaxially fixedly connected to the main rod 39 at a position relative to the first linkage bevel gear 35, and the first linkage bevel gear 35 and the second linkage bevel gear 36 are meshedly connected.

[0040] Located below the screen 2 are two cams 37, positioned longitudinally and facing each other, with their major axes oriented in opposite directions. A branch rod 38 is coaxially fixedly connected to the rotation center of the cam 37 and is rotationally connected to the housing 1. A main rod 39 is perpendicularly mounted at one end of the branch rod 38. The main rod 39 is positioned horizontally and is rotationally connected to the housing 1.

[0041] The main rod 39 is coaxially fixedly connected to the position of the branch rod 38 with the third linkage bevel gear 391, and the branch rod 38 is coaxially fixedly connected to the position of the main rod 39 with the fourth linkage bevel gear 381. The third linkage bevel gear 391 is meshed with the fourth linkage bevel gear 381.

[0042] When the first rotating motor 31 drives the first linkage group 32 to rotate, the first linkage group 32 drives the second linkage group 33 to rotate, and the second linkage group 33 drives the third linkage group 34 to rotate, and then the third linkage group 34 drives the output shaft 342 to rotate, the output shaft 342 drives the first linkage bevel gear 35 to rotate, the first linkage bevel gear 35 drives the second linkage bevel gear 36 to rotate, and then drives the main rod 39 to rotate, so that the main rod 39 drives the third linkage bevel gear 391 to rotate, the third linkage bevel gear 391 drives the fourth linkage bevel gear 381 to rotate, and then drives the branch rod 38 to rotate, and finally drives the cam 37 to rotate, and drives the screen 2 to vibrate and screen through the cam 37.

[0043] Referring to Figure 2 , the position between the two opposite cams 37 on the screen 2 is horizontally provided with a rotating rod 21, the rotating rod 21 is arranged along the width direction, and the side wall of the shell 1 is provided with a groove relative to the position of the rotating rod 21, and the rotating rod 21 extends into the inside of the groove and is relatively connected. The first spring 17 is horizontally arranged inside the two opposite side walls of the shell 1 along the length direction, the first spring 17 is opposite to the screen 2, and the first spring 17 is fixedly connected with the screen 2.

[0044] The lower surface of the screen 2 is vertically provided with a top plate 22 relative to the position of the cam 37, and the distance between the top plate 22 and the rotation center of the cam 37 is less than the long axis of the cam 37, so that when the cam 37 rotates, the cam 37 lifts the screen 2 upwards, and then pushes the top plate 22 to move away from the side of the cam 37, and drives the screen 2 to move horizontally.

[0045] Referring to Figure 2 , Figure 6 , the support structure 4 includes a first vertical rod 41 located below the screen 2 close to the feeding end 13 side, the first vertical rod 41 is vertically arranged, the top end of the first vertical rod 41 is hingedly arranged with the screen 2, and the lower part of the first vertical rod 41 is sleeved with a first sleeve 42, the first vertical rod 41 and the first sleeve 42 are coaxially arranged, and the first vertical rod 41 is relatively connected with the inside of the first sleeve 42, the lower part of the first vertical rod 41 is vertically provided with a second spring 43, and one end of the second spring 43 is fixedly connected with the first vertical rod 41, and the other end of the second spring 43 is fixedly connected with the first sleeve 42.

[0046] The second vertical rod 44 is located below the screen 2 and close to the discharge end 14. The second vertical rod 44 is vertically arranged. The top end of the second vertical rod 44 is hingedly arranged with the screen 2. The lower part of the second vertical rod 44 is sleeved with a second sleeve 45. The second vertical rod 44 and the second sleeve 45 are coaxially arranged. The second vertical rod 44 is relatively slidably connected into the inside of the second sleeve 45. The lower part of the second vertical rod 44 is vertically provided with a third spring 46. One end of the third spring 46 is fixedly connected with the second vertical rod 44. The other end of the third spring 46 is fixedly connected with the second sleeve 45. When the second spring 43 and the third spring 46 are in a free state, the top end of the first vertical rod 41 is higher than the top end of the second vertical rod 44.

[0047] Referring to Figure 2 、 Figure 3 The branch rod 38 close to the discharge end 14 includes a first branch part 382 close to the main rod 39 and a second branch part 383 away from the main rod 39. The first branch part 382 and the second branch part 383 are coaxially arranged. The first branch part 382 is coaxially fixedly connected with a first adjusting bevel gear 384 close to the second branch part 383. The second branch part 383 is coaxially fixedly connected with a second adjusting bevel gear 385 close to the first branch part 382. A third adjusting bevel gear 386 is horizontally arranged between the first adjusting bevel gear 384 and the second adjusting bevel gear 385. A lifting screw 387 is coaxially arranged on the third adjusting bevel gear 386. The bottom end of the lifting screw 387 is provided with a second rotating motor 388. The motor shaft of the second rotating motor 388 is coaxially and fixedly connected with the lifting screw 387.

[0048] The second rotating motor 388 drives the lifting screw 387 to rotate, and then the lifting screw 387 drives the third adjusting bevel gear 386 to ascend or descend along the height direction. When the third adjusting bevel gear 386 is located at the highest end of the lifting screw 387, the first adjusting bevel gear 384 and the third adjusting bevel gear 386 are engaged, the second adjusting bevel gear 385 and the third adjusting bevel gear 386 are engaged, the main rod 39 drives the first branch part 382 to rotate, the first branch part 382 drives the first adjusting bevel gear 384 to rotate, the first adjusting bevel gear 384 drives the third adjusting bevel gear 386 to rotate, the third adjusting bevel gear 386 drives the second adjusting bevel gear 385 to rotate, thereby driving the second branch part 383 to rotate. When the lifting screw 387 drives the third adjusting bevel gear 386 to descend, the first adjusting bevel gear 384 and the third adjusting bevel gear 386 are disengaged, the second adjusting bevel gear 385 and the third adjusting bevel gear 386 are disengaged, and the first branch part 382 cannot drive the second branch part 383 to rotate.

[0049] When the soil on the screen 2 needs to be poured out from the discharge port 12, the working end of the cam 37 located near the discharge end 14 is set downward, and the working end of the cam 37 located near the feed end 13 is set upward, the screen 2 is tilted, and the third adjusting bevel gear 386 is moved upward, stopping the cam 37 near the discharge port 12. When the second spring 43 and the third spring 46 are in a free state, the distance between the lower surface of the screen 2 and the rotation center of the cam 37 near the feed end 13 is less than the major axis of the cam 37. When the cam 37 near the feed end 13 rotates, the cam 37 can drive the screen 2 to vibrate, facilitating the drop of material above the screen 2.

[0050] Reference Figure 2 、 Figure 3 The hybrid structure 5 includes a first cleaning bevel gear 51 coaxially arranged with the motor shaft of the first rotating motor 31. A second cleaning bevel gear 53 is disposed horizontally above the first cleaning bevel gear 51. The second cleaning bevel gear 53 is meshed with the first cleaning bevel gear 51. A cleaning rod 57 is coaxially fixedly connected to the second cleaning bevel gear 53. The top of the cleaning rod 57 extends from the position of the screen 2. A reciprocating screw 52 is provided along the length of the screen 2. The reciprocating screw 52 is rotationally connected to the screen 2 and arranged relatively parallel to the reciprocating screw 52. A third cleaning bevel gear 55 is coaxially fixedly connected to the reciprocating screw 52 relative to the cleaning rod 57. A fourth cleaning bevel gear 56 is coaxially fixedly connected to the cleaning rod 57 relative to the third cleaning bevel gear 55. The third cleaning bevel gear 55 and the fourth cleaning bevel gear 56 are meshed with each other. A cleaning plate 54 is also threadedly connected to the reciprocating screw 52. The cleaning plate 54 can reciprocate along the length of the screen 2 as the reciprocating screw 52 rotates.

[0051] The implementation principle of a soil vibrating screen in the embodiment of the present application is as follows: the soil entering through the feed port 11 is placed above the screen 2, and the first linkage group 32 is driven to rotate by the first rotating motor 31, and the first linkage group 32 drives the second linkage group 33 to rotate, and the second linkage group 33 drives the third linkage group 34 to rotate, thereby driving the output shaft 342 to rotate, and the output shaft 342 drives the main rod 39 to rotate, so that the main rod 39 drives the branch rod 38 to rotate, and thereby drives the cam 37 to rotate, and the screen 2 is vibrated up and down by the cam 37, and because the long axes of the cams 37 are staggered, the screen 2 is driven to vibrate obliquely, and the top plate 22 is driven by the cam 37 to drive the screen 2 to vibrate along the length direction.

[0052] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A soil vibrating screen, characterized in that: The invention comprises a housing (1), a screen (2) is horizontally arranged inside the housing (1), a cam (37) is relatively arranged below the screen (2), the cam (37) is rotatably connected to the screen (2), the long axes of the plurality of cams (37) are staggered, and a driving structure for driving the cam (37) to rotate is also arranged on the screen (2); The driving structure includes a first linkage group (32) rotatably connected to the screen (2), the first linkage group (32) includes a plurality of first linkage rods (321) fixedly connected along the circumferential direction, a first connecting rod (322) is hingedly provided on the first linkage rod (321), a second linkage group (33) is provided on one side of the first linkage group (32), the second linkage group (33) includes a plurality of second linkage rods (331) fixedly connected along the circumferential direction, the second linkage rods (331) and the first connecting rods (322) are opposite to each other and hingedly provided, and the second linkage group (33) is provided on a side away from the first linkage group (32). There is a third linkage group (34), the third linkage group (34) includes a plurality of third linkage rods (341) fixedly connected along the circumferential direction, a second connecting rod (343) is hingedly provided on the third linkage rod (341), the second connecting rod (343) corresponds to the second linkage rod (331) one by one and is hingedly provided relative to the second linkage rod (331), a first rotating motor (31) for driving the first linkage group (32) to rotate is provided at the position of the rotation center of the first linkage group (32), an output shaft (342) is horizontally fixedly connected to the rotation center of the third linkage group (34), and a linkage structure is provided between the output shaft (342) and the cam (37); A vibration structure (3) for driving the screen (2) to shake is provided below the screen (2), the vibration structure (3) comprising a first rotating motor (31) fixedly connected to the screen (2), and a first linkage rod (321) fixedly connected to the motor shaft of the first rotating motor (31); The linkage structure includes a first linkage bevel gear (35) coaxially fixedly connected to the output shaft (342); a second linkage bevel gear (36) is meshedly connected to one side of the first linkage bevel gear (35); a main rod (39) is coaxially fixedly connected to the second linkage bevel gear (36); a branch rod (38) is coaxially fixedly connected to the cam (37) near the discharge end (14); the branch rod (38) is rotatably connected to the housing (1); a third linkage bevel gear (391) is coaxially fixedly connected to the main rod (39) relative to the branch rod (38); a fourth linkage bevel gear (381) is coaxially fixedly connected to the branch rod (38) relative to the third linkage bevel gear (391); and the third linkage bevel gear (391) and the fourth linkage bevel gear (381) are meshedly connected; The branch rod (38) includes a first branch (382) close to the main rod (39) and a second branch (383) away from the main rod (39). The first branch (382) and the second branch (383) are coaxially arranged. A first adjusting bevel gear (384) is coaxially fixedly connected to the side of the first branch (382) close to the second branch (383). A second adjusting bevel gear (385) is coaxially fixedly connected to the side of the second branch (383) close to the first branch (382). A third adjusting bevel gear (384) is horizontally arranged between the first adjusting bevel gear (384) and the second adjusting bevel gear (385). An adjusting bevel gear (386) is coaxially threadedly connected to a lifting screw (387) on the third adjusting bevel gear (386), and a second driving member for driving the lifting screw (387) to rotate is provided at the bottom end of the lifting screw (387), and the lifting screw (387) is meshedly connected with the third adjusting bevel gear (386). When the third adjusting bevel gear (386) is located at the top end of the lifting screw (387), one end of the third adjusting bevel gear (386) is meshedly connected with the first adjusting bevel gear (384), and the third adjusting bevel gear (386) is meshedly connected with the second adjusting bevel gear (385).

2. A soil vibrating screen according to claim 1, characterized in that: The first rotating motor (31) is also coaxially fixedly connected to a first cleaning bevel gear (51), and a second cleaning bevel gear (53) is meshedly connected above the first cleaning bevel gear (51). A cleaning rod (57) is coaxially fixedly connected to the second cleaning bevel gear (53). A reciprocating screw (52) is horizontally arranged on the screen (2), and a third cleaning bevel gear (55) is coaxially fixedly connected to the reciprocating screw (52) relative to the position of the cleaning rod (57). A fourth cleaning bevel gear (56) is coaxially fixedly connected to the cleaning rod (57). The third cleaning bevel gear (55) and the fourth cleaning bevel gear (56) are meshedly connected. A cleaning plate (54) is meshedly connected to the reciprocating screw (52).

3. A soil vibrating screen according to claim 1, characterized in that: The lower surface of the screen (2) is vertically fixedly connected to a top plate (22) relative to a position of a cam (37) close to the feed end (13); the distance between the top plate (22) and the rotation center of the cam (37) is smaller than the long axis of the cam (37); the side wall of the screen (2) is horizontally fixedly connected to a first elastic member, and the other end of the first elastic member is fixedly connected to the housing (1).

4. A soil vibrating screen according to claim 1, characterized in that: A first vertical rod (41) is vertically arranged on one side below the screen (2) near the feed end (13), a first sleeve (42) is sleeved on the outer side of the bottom end of the first vertical rod (41), a second elastic member is vertically arranged on the bottom end of the first vertical rod (41), and the top end of the first vertical rod (41) is hinged to the screen (2). A second vertical rod (44) is vertically arranged on one side below the screen (2) near the discharge end (14), a second sleeve (45) is sleeved on the outer side of the bottom end of the second vertical rod (44), and a third elastic member is vertically arranged on the bottom end of the second vertical rod (44), and the top end of the second vertical rod (44) is hinged to the screen (2). When the second elastic member and the third elastic member are both in a free state, the top end of the first vertical rod (41) is higher than the top end of the second vertical rod (44).

5. A soil vibrating screen according to claim 4, characterized in that: When the second elastic member and the third elastic member are in a free state, the distance between the lower surface of the screen (2) and the rotation center of the cam (37) close to the feed end (13) is smaller than the long axis of the cam (37) close to the feed end (13).

Images