CN213612605U

CN213612605U - Gravel screen

Info

Publication number: CN213612605U
Application number: CN202022210945.XU
Authority: CN
Inventors: 岳晓伟; 杨晨
Original assignee: Huzhou Shangjian Huayu Concrete Co ltd
Current assignee: Huzhou Shangjian Huayu Concrete Co ltd
Priority date: 2020-09-30
Filing date: 2020-09-30
Publication date: 2021-07-06
Anticipated expiration: 2030-09-30

Abstract

The utility model relates to a grit sieve, belong to the field of grit screening, it includes quick-witted case and the screen frame of setting on quick-witted case, be provided with the motor on the quick-witted case, motor coaxial coupling has the main shaft, be provided with first bevel gear and cam on the main shaft, machine roof face rotates and is connected with a plurality of bent axles, wherein be fixed with the second bevel gear with first bevel gear meshing on the bottom of a set of bent axle, the top surface sliding connection of machine case has the ejector pin, ejector pin bottom and cam butt, the machine incasement is provided with lubricated case, lubricated liquid is equipped with in the lubricated case, first bevel gear and cam lower part are soaked in lubricated liquid, lubricated case roof face is provided with the protection casing, the cam, first bevel gear and second bevel gear all are located the protection casing, the protection casing includes half shell on the left side of joint complex. The utility model has the advantages of can lubricate cam and ejector pin, the noise reduction.

Description

Gravel screen

Technical Field

The application relates to the field of grit screening, especially relate to a grit sieve.

Background

The sand and stone sieve is a machine which is matched with a test screen to analyze the granularity of materials and replaces manual sieving. The long-strip barrel is usually arranged, and the middle of the barrel is provided with a plurality of layers of screen meshes for screening out particles with different particle sizes, so that the time for collecting and concentrating the particles with different particle sizes is greatly saved.

Chinese patent with publication number CN205020386U discloses a jarring type sieving machine with self-lubricating mechanism, which comprises a base, a speed reducing motor is fixed on the side wall of the base, one end of a main transmission shaft extends into the speed reducing motor and is connected with the speed reducing motor, a large bevel gear and a cam are fixed on the main transmission shaft, two crankshafts are hinged on the top plate of the base, the lower end of one crankshaft extends into the base and is fixed with a pinion engaged with the large bevel gear, a top rod is connected on the top plate of the base in a sliding manner, the lower end of the top rod is pressed on the cam, an oil adding seat is fixed on the bottom surface of the base, the top surface of the oil adding seat is provided with an oil storage tank, and the lower part of the large bevel gear is immersed in oil in the oil storage tank, so that the abrasion between the large bevel gear and the small bevel gear is.

The above prior art solutions have the following drawbacks: the oil storage tank can not lubricate the cam and the ejector rod, and the friction force and the noise between the cam and the ejector rod are large in the using process.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art exists, the utility model aims at providing a grit sieve has the advantage that can lubricate cam and ejector pin, noise abatement.

The above utility model discloses an above-mentioned utility model purpose can realize through following technical scheme:

the utility model provides a grit sieve, includes quick-witted case and the screen frame of setting on quick-witted case, be provided with the motor on the quick-witted case, motor coaxial coupling has the main shaft, be provided with first bevel gear and cam on the main shaft, machine roof face rotates and is connected with a plurality of bent axles, is fixed with the second bevel gear with first bevel gear meshing on one of them group bent axle's the bottom, the top surface sliding connection of machine case has the ejector pin, ejector pin bottom and cam butt, the machine incasement is provided with lubricated case, lubricated liquid is equipped with in the lubricated case, first bevel gear and cam lower part are soaked in lubricated liquid, lubricated roof face is provided with the protection casing, cam, first bevel gear and second bevel gear all are located the protection casing, the protection casing includes half shell on the left side of joint complex and half shell on the right side, half shell on the left.

By adopting the technical scheme, the lower parts of the first bevel gear and the cam are immersed in lubricating liquid, the main shaft drives the first bevel gear and the cam to rotate in the using process, so that the lubricating oil can be uniformly distributed on the first bevel gear and the cam, the lubricating oil can be brought to the second bevel gear when the first bevel gear and the second bevel gear are in meshing transmission, and the cam can bring the lubricating oil to the ejector rod, so that the lubricating effect is ensured, and the noise in the operating process is reduced; at the high-speed operation in-process, lubricating oil on first bevel gear and the cam can splash along tangential direction, and the protection casing can protect, avoids lubricating oil to splash to quick-witted incasement, can avoid dust and impurity to get into in the lubricated case simultaneously, has prolonged lubricating oil's life.

Preferably, one side of half shell is provided with the sealing strip towards the right half shell on the left side, one side of sealing strip cross section towards the right half shell is the shrink form, seted up on the half shell on the right side and pegged graft complex seal groove with the sealing strip.

Through adopting above-mentioned technical scheme, half shell on the left side and half shell on the right side each other the joint cooperation can be convenient for dismantle, and the sealing strip joint makes the sealed effect between half shell on the left side and the half shell on the right side better in the seal groove, and lubricating oil is difficult for spilling from the gap of junction.

Preferably, two groups of oil slingers are arranged on the main shaft, and clamping grooves matched with the oil slingers in a clamping mode are respectively formed in the left half shell and the right half shell.

Through adopting above-mentioned technical scheme, when lubricating oil along left half shell and right half shell when flowing down the main shaft, the oil scraper ring can play the effect of blockking to lubricating oil, avoids lubricating oil to flow to the lubrication box along the main shaft outside, and the oil scraper ring can play the effect of preliminary location when installing left half shell and right half shell with the cooperation of draw-in groove joint.

Preferably, the oil deflector ring is sleeved on the main shaft and is in sliding fit with the main shaft, a sliding ring is arranged on the oil deflector ring, a locking bolt is connected to the sliding ring in a threaded manner, and the locking bolt penetrates through the sliding ring to abut against the main shaft.

By adopting the technical scheme, the oil scraper ring and the main shaft can be manufactured respectively and then assembled, the production is convenient, the production cost is low, the oil scraper ring can slide along the main shaft by unscrewing the locking threads, the position of the oil scraper ring on the main shaft is adjusted, the oil scraper ring is suitable for lubricating boxes with different specifications, and the application range is wide.

Preferably, one end of the ejector rod, which is far away from the cam, is provided with an ejector block, and one side of the ejector block, which is far away from the ejector rod, is provided with a cushion pad.

Through adopting above-mentioned technical scheme, the ejector pin lift slip in-process, through the slide butt of kicking block with the top, area of contact is great, and pressure is less, can avoid ejector pin and slide direct collision to take place deformation, and the blotter can cushion simultaneously, reduces the noise of operation in-process.

Preferably, be provided with the oiling pipe on the lubricated case, the oiling pipe passes the quick-witted case lateral wall and extends to the quick-witted case outside, the one end threaded connection who keeps away from lubricated case of oiling pipe has the oiling lid.

Through adopting above-mentioned technical scheme, after using longer time, when lubricating oil consumption is more when needing supplementary lubricating oil, can open the oiling lid, direct outside quick-witted case through the oiling pipe to lubricated incasement oiling, need not to open quick-witted case, the oiling is comparatively convenient.

Preferably, an oil mass detection rod is arranged on one side of the oil filling cover facing the oil filling pipe.

Through adopting above-mentioned technical scheme, with the back of oiling lid back of unscrewing, can directly perceivedly understand lubricated incasement surplus oil mass through looking over the liquid level vestige on the oil mass test rod, make the staff can estimate how much lubricating oil need be added, added excessive oil when avoiding refueling, lead to lubricating oil to spill over.

Preferably, the bottom of the lubricating box is provided with an oil outlet, and the oil outlet is in threaded connection with an oil discharging cover.

Through adopting above-mentioned technical scheme, when needs carry out overhauls the maintenance comprehensively to the grit sieve, can open the oil extraction lid, have the discharge with the lubrication in the lubricated incasement to dismantle lubricated case and overhaul cam and first bevel gear.

In summary, the present application includes at least one of the following beneficial technical effects:

the first bevel gear and the cam enter the lubricating oil to be lubricated, so that noise is reduced, meanwhile, the protective cover can prevent the lubricating oil from splashing, can also prevent dust and impurities from entering the lubricating box, and prolongs the service life of the lubricating oil;

through with the sealing strip joint in the seal groove, make the sealed effect between half shell on the left side and the right half shell better, lubricating oil is difficult for leaking from the gap of junction.

Drawings

Fig. 1 is a front view of the present invention;

fig. 2 is a schematic cross-sectional view of the enclosure of fig. 1;

FIG. 3 is a schematic view of the lubrication tank and the boot of FIG. 2;

FIG. 4 is a schematic cross-sectional view of FIG. 3;

fig. 5 is a partially enlarged schematic view of a in fig. 2.

Description of reference numerals: 1. a chassis; 2. a swing seat; 3. a guide bar; 4. a slide base; 5. a positioning column; 6. a screen body; 7. a cover body; 8. a main shaft; 9. a protective cover; 91. a left half shell; 92. a right half shell; 10. a first bevel gear; 11. a top rod; 12. a cam; 13. a crankshaft; 14. a second bevel gear; 15. a lubrication box; 16. a motor; 17. a first positioning seat; 18. a second positioning seat; 19. a sealing strip; 20. a sealing groove; 21. an oil slinger; 22. a slip ring; 23. locking the bolt; 24. a top block; 25. a cushion pad; 26. an oil filling pipe; 27. an oil injection cover; 28. an oil amount detecting lever; 29. an oil discharge port; 30. and an oil discharge cover.

Detailed Description

The present application is described in further detail below with reference to the attached drawings.

Referring to fig. 1, for the utility model discloses a sandstone sieve, including quick-witted case 1, the last rotation of machine case 1 is connected with swing seat 2, and swing seat 2 goes up the vertical fixation has three guide bars 3 of group, and sliding connection has slide 4 on the guide bar 3, and the vertical fixation has reference column 5 on the slide 4, piles up on the reference column 5 to be fixed with a plurality of screen frame 6, and the top that is located screen frame 6 of the top is provided with lid 7, lid 7 and reference column 5 fixed connection.

Referring to fig. 2, horizontal setting and main shaft 8 in the machine case 1, main shaft 8 rotates with machine case 1 to be connected, be fixed with motor 16 with 8 coaxial coupling of main shaft on the outer wall of machine case 1, motor 16 passes through the power cord and is connected with external power source, fixedly connected with cam 12 on the main shaft 8, there is ejector pin 11 top surface along vertical direction sliding connection of machine case 1, 11 bottom of ejector pin and cam 12 butt, swing seat 2 and the bottom surface butt of slide 4 are passed on the top of ejector pin 11, motor 16 drives cam 12 synchronous revolution when driving main shaft 8 rotatory, cam 12 drives ejector pin 11 vertical slip, and then order to order about slide 4 along guide bar 3 and slide.

The main shaft 8 is further fixed with a first bevel gear 10, the top surface of the case 1 is rotatably connected with three groups of crankshafts 13, the three groups of crankshafts are uniformly distributed on a circle with the ejector rod 11 as the center of circle, the top ends of the crankshafts 13 are fixedly connected with the swing seat 2, the bottom ends of one group of crankshafts 13 are fixed with second bevel gears 14, the second bevel gears 14 are meshed with the first bevel gear 10, when the main shaft 8 is driven by a motor 16 to rotate, the first bevel gear 10 drives the second bevel gears 14 to rotate through meshing, so that the crank is driven to rotate, and the crank drives the swing seat 2 to swing.

A lubricating box 15 is arranged in the case 1, lubricating liquid is filled in the lubricating box 15, the lower portions of the first bevel gear 10 and the cam 12 are immersed in the lubricating liquid, a protective cover 9 is arranged on the top surface of the lubricating box 15, and the cam 12, the first bevel gear 10 and the second bevel gear 14 are all located in the protective cover 9.

Referring to fig. 3, the protection casing 9 includes a left half shell 91 and a right half shell 92 which are in clamping fit, the lower end faces of the left half shell 91 and the right half shell 92 are respectively welded and fixed with a first positioning seat 17, the upper end face of the lubricating box 15 is fixed with a second positioning seat 18, and the first positioning seat 17 and the second positioning seat 18 are fixed in a mode of penetrating through a bolt and a locking nut.

Referring to fig. 4, one side of the left half-shell 91 facing the right half-shell 92 is provided with a sealing strip 19, the cross section of the sealing strip 19 is trapezoidal, one side of the sealing strip 19 far away from the left half-shell 91 is narrower, and the right half-shell 92 is provided with a sealing groove 20 which is matched with the sealing strip 19 in an inserting manner.

Referring to fig. 5, two sets of oil slingers 21 are arranged on the main shaft 8, one end of each oil slinger 21 is fixedly connected with a sliding ring 22, a locking bolt 23 is connected onto each sliding ring 22 in a threaded manner, each locking bolt 23 penetrates through the corresponding sliding ring 22 to abut against the main shaft 8, clamping grooves corresponding to the oil slingers 21 are respectively formed in the left half shell 91 and the right half shell 92, and the oil slingers 21 are clamped in the clamping grooves.

Referring to fig. 2, an end of the push rod 11 away from the cam 12 is fixedly connected with a top block 24, and a cushion pad 25 is disposed on a side of the top block 24 away from the push rod 11, where the cushion pad 25 is a rubber pad in this embodiment.

Be provided with oiling pipe 26 on lubricated case 15, oiling pipe 26 passes quick-witted case 1 lateral wall and extends to the quick-witted case 1 outside, and the one end threaded connection that lubricated case 15 was kept away from to oiling pipe 26 has oiling lid 27, and oiling lid 27 is provided with oil mass detection pole 28 towards one side in the oiling pipe 26, and lubricated case 15's bottom is provided with oil drain port 29, and threaded connection has oil drain cover 30 on the oil drain port 29.

The implementation principle of the embodiment is as follows: when screening work is carried out, the motor 16 drives the main shaft 8 to rotate, the main shaft 8 drives the cam 12 and the first bevel gear 10 to synchronously rotate, the first bevel gear 10 drives the second bevel gear 14 to rotate through meshing so as to drive the crank to rotate, and the crank drives the swinging seat 2 to swing; the cam 12 drives the ejector rod 11 to vertically slide, so that the sliding seat 4 is driven to slide along the guide rod 3, the sliding seat 4 slides along the guide rod 3 in a reciprocating manner while swinging along with the swinging seat 2, and a screen on the sliding seat 4 is used for rapidly screening materials;

in the operation process, the bottom of first bevel gear 10 and cam 12 is soaked in lubricating oil, can take lubricating oil to second bevel gear 14 when first bevel gear 10 and second bevel gear 14 meshing transmission, cam 12 can take lubricating oil to ejector pin 11 on, the lubrication effect has been guaranteed, the noise of operation in-process has been reduced, at high-speed operation in-process, lubricating oil on first bevel gear 10 and the cam 12 can splash along tangential direction, protection casing 9 can protect, avoid lubricating oil to splash to quick-witted incasement 1, can avoid dust and impurity to get into in the lubricated case 15 simultaneously.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. The utility model provides a grit sieve, includes quick-witted case (1) and screen frame (6) of setting on quick-witted case (1), be provided with motor (16) on quick-witted case (1), motor (16) coaxial coupling has main shaft (8), be provided with first bevel gear (10) and cam (12) on main shaft (8), quick-witted case (1) top surface rotates and is connected with a plurality of bent axles (13), is fixed with second bevel gear (14) with first bevel gear (10) meshing on wherein the bottom of a set of bent axle (13), the top surface sliding connection of quick-witted case (1) has ejector pin (11), ejector pin (11) bottom and cam (12) butt, be provided with lubrication box (15) in quick-witted case (1), be equipped with lubricating liquid in lubrication box (15), its characterized in that: first bevel gear (10) and cam (12) lower part are soaked in lubricated liquid, lubricated case (15) top surface is provided with protection casing (9), cam (12), first bevel gear (10) and second bevel gear (14) all are located protection casing (9), protection casing (9) are including joint complex left half shell (91) and right half shell (92), left half shell (91) and right half shell (92) can be dismantled with lubricated case (15) and be connected.

2. A sand screen as claimed in claim 1, wherein: half shell (91) on the left side is provided with sealing strip (19) towards one side of half shell (92) on the right side, sealing strip (19) cross section is the shrink form towards one side of half shell (92) on the right side, seted up on half shell (92) on the right side and pegged graft complex seal groove (20) with sealing strip (19).

3. A sand screen as claimed in claim 2, wherein: the main shaft (8) is provided with two groups of oil slingers (21), and the left half shell (91) and the right half shell (92) are respectively provided with clamping grooves which are in clamping fit with the oil slingers (21).

4. A sand screen as claimed in claim 3, wherein: the oil scraper ring (21) is sleeved on the main shaft (8) and is in sliding fit with the main shaft (8), a sliding ring (22) is arranged on the oil scraper ring (21), a locking bolt (23) is connected to the sliding ring (22) in a threaded mode, and the locking bolt (23) penetrates through the sliding ring (22) to abut against the main shaft (8).

5. A sand screen as claimed in claim 1, wherein: one end of the ejector rod (11) far away from the cam (12) is provided with an ejector block (24), and one side of the ejector block (24) far away from the ejector rod (11) is provided with a cushion pad (25).

6. A sand screen as claimed in claim 1, wherein: be provided with oiling pipe (26) on lubricated case (15), oiling pipe (26) pass quick-witted case (1) lateral wall and extend to quick-witted case (1) outside, the one end threaded connection who lubricated case (15) were kept away from in oiling pipe (26) has oiling lid (27).

7. A sand screen as claimed in claim 6, wherein: an oil quantity detection rod (28) is arranged on one side of the oil filling cover (27) facing the inside of the oil filling pipe (26).

8. A sand screen as claimed in claim 7, wherein: an oil discharge port (29) is formed in the bottom of the lubricating box (15), and an oil discharge cover (30) is connected to the oil discharge port (29) in a threaded mode.