CN211538491U

CN211538491U - Screening machine

Info

Publication number: CN211538491U
Application number: CN201921703499.7U
Authority: CN
Inventors: 于广芹; 杨婷; 杨琳; 杨军兆
Original assignee: Shanghai Yizhao Municipal Engineering Materials Co ltd
Current assignee: Shanghai Yizhao Municipal Engineering Materials Co ltd
Priority date: 2019-09-30
Filing date: 2019-09-30
Publication date: 2020-09-22
Anticipated expiration: 2029-09-30

Abstract

The utility model relates to a screening machine, which comprises a frame, a power mechanism and a screening mechanism, wherein the upper end of the frame is provided with a support frame; the power mechanism comprises a transmission shaft, a rotating rod and a motor which are connected with the support frame; the transmission shaft is connected with a first chain wheel and a second chain wheel which are unidirectional chain wheels; the front end of the motor is provided with a motor chain wheel which is rotationally connected to a first chain wheel through a first chain; a rotating chain wheel is arranged on the rotating rod, a handle is arranged at one end of the rotating rod, and the rotating chain wheel is rotationally connected to a second chain wheel through a second chain; the motor chain wheel and the rotating chain wheel are bidirectional chain wheels; one end of the transmission shaft is connected with a crankshaft connecting rod mechanism, the crankshaft connecting rod mechanism comprises a crankshaft and a connecting rod, and one end of the connecting rod is connected with a transmission rod; screening mechanism is including sliding the screening frame of connecting in the frame upper end, and screening frame one end is connected to transfer line one end. The utility model discloses have and when vibrating motor can't the during operation, make the screening machine rerum through artifical or external power.

Description

Screening machine

Technical Field

The utility model relates to a screening equipment field, in particular to screening machine.

Background

The screening machine is an important device for grading solid materials, and is widely applied to industries such as mines, building materials, coal dressing, energy sources, chemical industry and the like. The form is basically divided into a seat type and a hanging type. Generally, the seat type is most common, the vibration source adopts an eccentric block or an eccentric shaft, and the two vibration sources are mixed and used more commonly. The working principle is as follows: the vibrating sieving machine utilizes the exciting force produced by vibration exciter (eccentric block or eccentric shaft) to make the sieve body do periodic reciprocating vibration along the exciting force direction, the material can be circumferentially jumped on the sieve surface, the materials with different specifications can be classified and regulated to the required sieve surface by means of different sieve pores, and the materials can be collected and transferred into a designated area so as to attain the goal of classification or medium-removing. The amplitude can be adjusted by adjusting the weight of the eccentric mass.

The prior patent grant publication number: CN203184222U A Motor vibration screening machine discloses a motor vibration screening machine, including frame, screening unit, reel, screen cloth, damping device, vibrating motor and guard shield. Through setting up vibrating motor on the reel, drive the screen cloth screening by vibrating motor again.

However, the screen can only be driven to vibrate by the vibrating motor, and during actual production, the screening machine generally acts on a building site with insufficient power supply or power failure, and once the power supply is not available, the screening cannot be carried out, so that the construction period is influenced, and economic loss is caused.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a screening machine has and when vibrating motor can't the during operation, can trun into manual operation or it sieves through other power.

The above utility model discloses an above-mentioned utility model purpose can realize through following technical scheme: a screening machine comprises a frame, a power mechanism and a screening mechanism, wherein a support frame is arranged at the upper end of the frame; the power mechanism comprises a transmission shaft, a rotating rod and a motor which are rotatably connected to the support frame; the transmission shaft is coaxially connected with a first chain wheel and a second chain wheel, and the first chain wheel and the second chain wheel are unidirectional chain wheels; the front end of the motor is coaxially provided with a motor chain wheel, and the motor chain wheel is rotationally connected to the first chain wheel through a first chain; a rotating chain wheel is coaxially arranged on the rotating rod, a handle is arranged at one end of the rotating rod, and the rotating chain wheel is rotationally connected to a second chain wheel through a second chain; the motor chain wheel and the rotating chain wheel are bidirectional chain wheels; one end of the transmission shaft is connected with a crankshaft connecting rod mechanism, the crankshaft connecting rod mechanism comprises a crankshaft and a connecting rod, and one end of the connecting rod is connected with a transmission rod; screening mechanism is including sliding the screening frame of connecting in the frame upper end, transfer line one end is connected screening frame one end.

Through adopting above-mentioned technical scheme, when needs screening machine during operation, under the circumstances that has the electricity, rotate through the motor and drive first chain and rotate to the transmission shaft that drives the first chain other end rotates, makes the motion of bent axle link mechanism and drive the transfer line and slide along the frame direction is reciprocal, makes screening mechanism begin work, sieves the screening thing. Under the condition of no power-on, the rotating rod is connected to the rotating handle through external power, or the rotating handle is manually rotated to enable the rotating rod to drive the transmission shaft to rotate through the second chain, then the crankshaft connecting rod mechanism is made to move and drive the transmission rod to slide in a reciprocating mode along the direction of the rack, and therefore power is provided for the screening mechanism, and the screening mechanism starts screening screened objects. This scheme makes under the condition that does not have the power, still can reach the purpose that makes the screening machine work through external power, reaches and lasts the screening, does not delay the time limit for a project, does not cause economic loss to first sprocket and second sprocket are one-way sprocket, and first sprocket can only be driven by motor drive first chain and rotate and drive the transmission shaft and rotate promptly, and when first sprocket antiport, first sprocket can not drive the transmission shaft and rotate, but rather with the transmission shaft relative rotation. The second sprocket also can only be driven by dwang drive second chain and rotate and drive the transmission shaft and rotate, and when second sprocket antiport, the second sprocket can not drive the transmission shaft and rotate, also can only rotate with the transmission shaft relatively, and this has reduced the waste of drive energy for the part that originally need not work can not worn and torn, has prolonged the life of screening machine.

The utility model discloses further set up to: one end of the connecting rod is sleeved on a shaft of the crankshaft through a closed bearing in an interference fit manner.

Through adopting above-mentioned technical scheme, airtight bearing has been cup jointed to the epaxial interference of bent axle, and a pot head of connecting rod is established in airtight bearing's outer lane for vertical winding motion under the effect of bent axle when the one end of connecting rod, this scheme makes the one end of connecting rod and the rotation of bent axle more smooth and easy through airtight bearing, reduces the production of rocking, has avoided the rotational friction between connecting rod and the bent axle simultaneously, has prolonged the life of connecting rod and bent axle.

The utility model discloses further set up to: the outer end of the rotating rod is provided with a handle.

Through adopting above-mentioned technical scheme, but be provided with the handle in the transfer line outer end of external power supply originally for do not have the power and have external power supply, and more urgent screening machine uses, can drive screening machine work through artifical rotation handle. This scheme makes the screening machine increase a power supply again, and manual operation reaches through manual operation and satisfies emergent screening demand under the condition that does not have other power supplies promptly.

The utility model discloses further set up to: the outer end face of the rotating rod is provided with a groove, a raised strip is arranged in the groove, the front end of the handle is provided with a lug which can be inserted in the groove, and the lug is provided with an insertion groove for inserting the raised strip.

Through adopting above-mentioned technical scheme, the handle is pegged graft in the transfer line outer end to can drive the transfer line and rotate together, make the screening machine during operation as the external power supply of needs, extract the handle, connect the power supply and begin the screening, when not having external power supply, peg graft the handle in the recess, rotate the handle, under the spacing of sand grip and inserting groove, the dwang rotates along with the handle together, makes the screening machine begin work. The scheme enables the handle to be detached, and the occupied space of the screening machine is saved while the working requirements are met.

The utility model discloses further set up to: the front end of the transmission rod is connected to one end of the screening frame through a flange plate bolt.

Through adopting above-mentioned technical scheme, the front end butt of transfer line is in the one end of screening frame, through ring flange bolted connection in screening frame one end, and this scheme is through dismantling the bolt for transfer line and screening frame separation, the connection of ring flange makes between transfer line and the screening frame more firm on the one hand, and on the other hand is when screening frame or transfer line damage, and it is more convenient to change.

The utility model discloses further set up to: one end of the crankshaft is provided with a semi-cylindrical clamping block, and one end of the transmission shaft is provided with a clamping groove for the clamping block to be inserted.

Through adopting above-mentioned technical scheme, the joint piece of bent axle one end is pegged graft in the card machine inslot of transmission shaft one end, and this scheme makes transmission shaft and bent axle can separate under the driven condition of not influencing for when bent axle or transmission shaft damage, can be through only changing the damage part, the screening machine reworks in addition.

The utility model discloses further set up to: a rotating groove is formed in one end of the supporting frame, and the rotating rod is inserted into the rotating groove in an interference mode through a second bearing.

Through adopting above-mentioned technical scheme, the dwang interference is pegged graft in the second bearing, and the second bearing sets up at the rotation inslot, when external power supply connects and makes the dwang rotate on the dwang, dwang one end drives the second chain and makes the transmission shaft rotate, and the other end is at the second bearing internal rotation. This scheme makes the dwang fixed on the support frame when out of work, when the dwang rotates, rotates on the support frame through the second bearing, when satisfying dwang operating condition, also lets the rotation of dwang more smooth and easy to difficult wearing and tearing have prolonged life.

The utility model discloses further set up to: the screening frame lower extreme is provided with the slide rail, be provided with the confession in the frame the spout that the slide rail slided.

Through adopting above-mentioned technical scheme, under the effect of transfer line, the screening frame slides in the frame upper end, but the transfer line is along the reciprocal displacement of the oblique up end of frame under crankshaft link mechanism's effect, so the transfer line still can slightly rock, through the injecing of slide rail and spout for the screening frame can only slide at the frame up end is reciprocal, and this scheme makes the slip of screening frame more stable, can not jump out the support.

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

1. when power is cut off, the handle inserted on the transmission shaft can be rotated, or an external power source is connected to the handle in a transmission way, the rotating rod is driven to drive the transmission shaft, and the sieving machine can continue to work under the action of the crankshaft connecting rod;

2. the connection between each position of this screening machine for the installation is dismantled or is changed more conveniently.

Drawings

FIG. 1 is a schematic diagram of the external structure of a sieving machine;

fig. 2 is a schematic view of the external structure of the sieving machine, showing the rear end structure of the power mechanism;

figure 3 is an exploded view of a portion of the power mechanism of the screening machine;

FIG. 4 is a schematic view of the crankshaft connecting rod mechanism assembly;

FIG. 5 is a schematic view of the internal structure of the handle;

fig. 6 is an appearance structure diagram of the sieving mechanism.

In the figure: 1. a frame; 2. a power mechanism; 3. a screening mechanism; 4. a support frame; 5. a drive shaft; 6. a first sprocket; 7. a second sprocket; 8. a first chain; 9. a second chain; 10. a motor; 11. rotating the rod; 12. a crankshaft connecting rod mechanism; 13. a transmission rod; 14. a first bearing; 15. a second bearing; 16. a third bearing; 17. a motor sprocket; 18. rotating the sprocket; 19. a groove; 20. a convex strip; 21. a handle; 22. a bump; 23. inserting grooves; 24. a crankshaft; 25. a connecting rod; 26. a limiting seat; 28. a limiting hole; 30. a screening rack; 31. a slide rail; 32. a chute; 33. a rotating groove; 34. a clamping block; 35. a clamping groove; 36. sealing the bearing; 37. a flange plate.

Detailed Description

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

Referring to fig. 1-3, a sieving machine comprises a frame 1, a power mechanism 2 and a sieving mechanism 3, wherein a support frame 4 is arranged at the upper end of the frame 1; the power mechanism 2 comprises a transmission shaft 5, a rotating rod 11 and a motor 10 which are rotatably connected to the support frame 4; the transmission shaft 5 is coaxially connected with a first chain wheel 6 and a second chain wheel 7, and the first chain wheel 6 and the second chain wheel 7 are unidirectional chain wheels; the front end of the motor 10 is coaxially provided with a motor 10 chain wheel, and the motor 10 chain wheel is rotationally connected to the first chain wheel 6 through a first chain 8; a rotating chain wheel 18 is coaxially arranged on the rotating rod 11, a handle 21 is arranged at one end of the rotating rod, and the rotating chain wheel 18 is rotationally connected to the second chain wheel 7 through a second chain 9; the motor 10 chain wheel and the rotating chain wheel 18 are bidirectional chain wheels; one end of the transmission shaft 5 is connected with a crankshaft 24 and connecting rod 25 mechanism 12, the crankshaft 24 and connecting rod 25 mechanism 12 comprises a crankshaft 24 and a connecting rod 25, and one end of the connecting rod 25 is connected with a transmission rod 13; the screening mechanism 3 comprises a screening frame 30 connected to the upper end of the rack 1 in a sliding mode, and one end of the transmission rod 13 is connected to one end of the screening frame 30.

Referring to fig. 1 and 3, frame 1 up end an organic whole is provided with support frame 4, a plurality of rotation grooves 33 have been seted up on the support frame 4, it has first bearing 14 to peg graft in the interference in the rotation groove 33, second bearing 15 and third bearing 16, transmission shaft 5 interference is pegged graft at first bearing 14 inner circle, make transmission shaft 5 can rotate on even support frame 4, transmission shaft 5 is at first sprocket 6 of the coaxial fixed connection in both sides of support frame 4 and second sprocket 7 simultaneously, first sprocket 6 and second sprocket 7 are one-way sprocket, when first sprocket 6 or second sprocket 7 clockwise rotation, then can drive transmission shaft 5 corotation, when first sprocket 6 or second sprocket 7 anticlockwise rotation, transmission shaft 5 can not follow the rotation.

Referring to fig. 2 and 3, the motor 10 and the rotating lever 11 are located at both sides of the transmission shaft 5. The front end of the motor 10 is inserted into the inner ring of the third bearing 16 in an interference manner, the front end of the motor 10 is coaxially connected with a motor chain wheel 17, the motor chain wheel 17 is a bidirectional chain wheel, the motor chain wheel 17 and the first chain wheel 6 are in transmission connection through a first chain 8, and when the motor 10 rotates, the transmission shaft 5 can be driven to rotate through the first chain 8.

Referring to fig. 3 and 5, the rotating rod 11 is inserted into the inner ring of the second bearing 15 in an interference manner, so that the rotating rod 11 can rotate on the support frame 4, the front end of the rotating rod 11 is provided with a cylindrical groove 19, the inner wall of the groove 19 is integrally provided with a raised line 20, the front end of the rotating rod 11 is provided with a pluggable and fixed handle 21, one end of the handle 21 is integrally provided with a cylindrical bump 22, and the end surface of the raised line is provided with an insertion groove 23 for the raised line 20 to be inserted. When the handle 21 is inserted into the front end of the rotating rod 11, the protruding strip 20 and the insertion groove 23 are limited, so that the rotating handle 21 can drive the rotating rod 11 to rotate together. Coaxial coupling has rotating sprocket 18 on dwang 11, and rotating sprocket 18 is two-way sprocket, rotates and connects through second chain 9 transmission between sprocket 18 and the second sprocket 7 for when rotating handle 21, fix rotating sprocket 18 on dwang 11 and together rotate, and drive second sprocket 7 through second chain 9 and rotate, thereby make transmission shaft 5 rotate.

Referring to fig. 2 and 3, a crankshaft connecting rod mechanism 12 is fixedly connected to a rear end of the transmission shaft 5, and the crankshaft connecting rod mechanism 12 includes a crankshaft 24 coaxially and fixedly connected to one end of the transmission shaft 5 and a connecting rod 25 rotatably connected to one end of the transmission rod 13. The middle of the side end of the crankshaft 24 is integrally provided with a semi-cylindrical clamping block 34, and the end surface of the transmission shaft 5 is provided with a semi-cylindrical clamping groove 35 for the clamping block 34 to be inserted, so that after the transmission shaft 5 rotates, the crankshaft 24 and the transmission shaft 5 rotate together, but the shaft of the crankshaft 24 does a winding motion because the shaft of the crankshaft 24 is not in the center.

Referring to fig. 3 and 4, one end of the connecting rod 25 is annularly mounted, a sealed bearing 36 is sleeved in the ring in an interference manner, and an inner ring of the sealed bearing 36 is sleeved on the shaft of the crankshaft 24 in an interference manner, so that one end of the connecting rod 25 and the shaft of the crankshaft 24 perform a winding movement. The upper end of the frame 1 is provided with a limiting seat 26, the limiting seat 26 is provided with a limiting hole 28 for inserting one end of the transmission rod 13, the connecting rod 25 and the limiting seat 26 are not interfered with each other, and the other end of the connecting rod 25 is connected to one end of the transmission rod 13.

Referring to fig. 3 and 6, a flange 37 is provided on the other end of the driving rod 13, and the flange 37 is bolted to one end of the sieve frame 30. The lower extreme of screening frame 30 is provided with slide rail 31, and frame 1 is provided with the spout 32 that supplies slide rail 31 to slide at the lower extreme of screening frame 30, and spout 32 is injectd screening frame 30 for screening frame 30 can only slide on the inclined end face of frame 1.

The implementation principle of the embodiment is as follows:

when the screening machine is required to work, under the condition of power, the motor 10 rotates to drive the first chain 8 to rotate, so that the first chain wheel 6 which is completely meshed with the other end of the first chain 8 is driven to rotate, the first chain wheel 6 drives the connecting shaft to rotate, the crankshaft 24 and connecting rod 25 mechanism 12 moves and drives the transmission rod 13 to slide back and forth along the direction of the rack 1, the screening mechanism 3 starts to work, and screened objects are screened. Under the circumstances that does not have the circular telegram, connect external power supply on dwang 11 or peg graft handle 21 on dwang 11, rotate handle 21 through external power supply or manpower, make dwang 11 drive through second chain 9 and rotate with second chain 9 other end engaged with's second sprocket 7 completely, drive transmission shaft 5 through second sprocket 7 and rotate, make bent axle link mechanism 12 motion again and drive transfer line 13 along the reciprocal slip of 1 direction in frame, thereby for screening mechanism 3 provides power, make screening mechanism 3 begin to sieve the screening thing.

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 screening machine, includes frame (1), power unit (2) and screening mechanism (3), its characterized in that:

the upper end of the rack (1) is provided with a support frame (4);

the power mechanism (2) comprises a transmission shaft (5), a rotating rod (11) and a motor (10) which are rotatably connected to the support frame (4);

the transmission shaft (5) is coaxially connected with a first chain wheel (6) and a second chain wheel (7), and the first chain wheel (6) and the second chain wheel (7) are unidirectional chain wheels;

the front end of the motor (10) is coaxially provided with a motor chain wheel (17), and the motor chain wheel (17) is rotationally connected to the first chain wheel (6) through a first chain (8);

a rotating chain wheel (18) is coaxially arranged on the rotating rod (11), a handle (21) is arranged at one end of the rotating rod, and the rotating chain wheel (18) is rotatably connected to the second chain wheel (7) through a second chain (9);

the motor chain wheel (17) and the rotating chain wheel (18) are bidirectional chain wheels;

one end of the transmission shaft (5) is connected with a crankshaft connecting rod mechanism (12), the crankshaft connecting rod mechanism (12) comprises a crankshaft (24) and a connecting rod (25), and one end of the connecting rod (25) is connected with a transmission rod (13);

screening mechanism (3) are including sliding the screening frame (30) of connecting in frame (1) upper end, transfer line (13) one end is connected screening frame (30) one end.

2. The screening machine according to claim 1, wherein: one end of the connecting rod (25) is sleeved on the shaft of the crankshaft (24) in an interference manner through a closed bearing (36).

3. The screening machine according to claim 2, wherein: the handle (21) is inserted at the outer end of the rotating rod (11).

4. The screening machine according to claim 3, wherein: a groove (19) is formed in the outer end face of the rotating rod (11), a protruding strip (20) is arranged in the groove (19), a protruding block (22) which can be inserted into the groove (19) is arranged at the front end of the handle (21), and an insertion groove (23) for inserting the protruding strip (20) is formed in the protruding block (22).

5. The screening machine according to claim 4, wherein: the front end of the transmission rod (13) is connected with one end of the screening frame (30) through a flange plate (37) by bolts.

6. The screening machine according to claim 5, wherein: bent axle (24) one end is provided with semi-cylindrical joint piece (34), joint groove (35) that confession joint piece (34) were pegged graft are seted up to transmission shaft (5) front end.

7. The screening machine according to claim 6, wherein: the support frame (4) is provided with a rotating groove (33), and the rotating rod (11) is inserted in the rotating groove (33) through a second bearing (15) in an interference manner.

8. The screening machine according to claim 7, wherein: the screening frame (30) lower extreme is provided with slide rail (31), be provided with on frame (1) and supply slide rail (31) spout (32) that slide.