CN221714870U - Particle size screening equipment for wheat harvesting - Google Patents

Abstract

The utility model discloses a particle size screening device for wheat harvesting, specifically relates to the field of wheat, comprising a machine body, a side wall of the machine body is provided with a replacement mechanism, the replacement mechanism comprises a screen, a connecting plate, a handle, a fixed block, a pull rod, a slider, a reset spring, a magnet bar and a magnet block; a screen is inserted into the interior of the machine body, the side wall of the screen is fixedly connected with a connecting plate, the side wall of the connecting plate is fixedly connected with a handle, the side wall of the machine body is fixedly connected with a fixed block, the interior of the fixed block is penetrated by a pull rod, and the outer wall of the pull rod is fixedly connected with a slider slidably connected to the side wall of the machine body; the utility model controls the up and down movement of the pull rod and the slider, when the pull rod is away from the connecting plate, the connecting plate and the screen are taken out by the handle, when the pull rod is inserted back into the connecting plate, the connecting plate and the screen are fixed, the screen is convenient to replace, and the service life of the device is extended.

Description

A particle size screening device for wheat harvesting

Technical Field

The utility model relates to the field of wheat, and more specifically, to a particle size screening device used for wheat harvesting.

Background Art

Wheat is a general term for plants of the genus Triticeae, the representative species of which is common wheat. It is a grass plant and a cereal crop widely grown around the world. After wheat is harvested, the size of the wheat grains needs to be screened.

After searching, the existing patent (publication number: 202121325560.6) discloses a multi-stage screening device for wheat breeding, including a body, a screening bin is opened inside the body, a screening component is fixed inside the screening bin, the screening component includes a first screen plate, a second screen plate, a vibration motor, a vibration spring, a first discharge trough and a second discharge trough, one side of the first screen plate is rotatably connected to one side of the inside of the screening bin through a rotating shaft, and one side of the second screen plate is rotatably connected to one side of the inside of the screening bin through a rotating shaft. The beneficial effect of the utility model is as follows: wheat is introduced into the screening bin for screening through a feed hopper, larger impurities are first screened out through the first screen plate, and other materials are screened to the next step, and then medium-sized materials are filtered out through the second screen plate to discharge small damaged seeds or other impurities through the third discharge trough, and the vibration motor drives the vibration rod to vibrate, and the vibration rod drives the first screen plate and the second screen plate to vibrate the screen.

Most of the existing grain size screening equipment for wheat harvesting uses a screen to screen the wheat in layers, and the screen is mostly fixed inside the screening machine. When the screen has holes or is damaged, the screening effect will be greatly reduced, causing more trouble for the operator. At the same time, the above-cited patent document does not propose a relevant solution to solve the problem of inconvenient replacement of the screen;

Therefore, in view of the above problems, a particle size screening device for wheat harvesting is proposed.

Utility Model Content

In order to overcome the above-mentioned defects of the prior art, an embodiment of the utility model provides a particle size screening device for wheat harvesting to solve the problems raised in the above-mentioned background technology.

To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a particle size screening device for wheat harvesting, comprising a body, a side wall of which is provided with a replacement mechanism, the replacement mechanism comprising a screen, a connecting plate, a handle, a fixing block, a pull rod, a slider, a reset spring, a magnet bar and a magnet block;

A screen is inserted into the interior of the body, a connecting plate is fixedly connected to the side wall of the screen, a handle is fixedly connected to the side wall of the connecting plate, a fixed block is fixedly connected to the side wall of the body, a pull rod passes through the interior of the fixed block, a slider slidably connected to the outer wall of the pull rod is fixedly connected to the bottom end of the fixed block, a slider is fixedly connected to the side of the return spring away from the fixed block, a magnet bar is fixedly connected to the upper edge of the slider, and a magnet block is fixedly connected to the bottom end of the fixed block and on the side of the return spring.

Preferably, a feed port is provided at the top of the body, a discharge port is provided at the bottom of the body, a bracket is fixedly connected to the bottom of the body, a base is fixedly connected to the bottom of the bracket, an anti-blocking mechanism is provided on the side of the body away from the replacement mechanism, and a vibrator is fixedly connected to the bottom of the body.

Preferably, the anti-blocking mechanism includes a driving motor, a rotating rod, a rotating gear, a force-bearing gear, a threaded rod and a slide plate.

Preferably, the side wall of the body is fixedly connected to a driving motor, the output end of the driving motor is fixedly connected to a rotating rod, the outer wall of the rotating rod is fixedly connected to a rotating gear, the side wall of the rotating gear is meshed with a force gear, the side wall of the force gear is fixedly connected to a threaded rod passing through the interior of the body, and the outer wall of the threaded rod is threadedly connected to a slide that is slidably connected to the inner wall of the body.

Preferably, the slider forms a sliding structure with the body through a pull rod and a return spring.

Preferably, one end of the pull rod extends into the interior of the connecting plate.

Preferably, the side wall of the body is provided with a sliding groove which fits with the side wall of the slider.

Preferably, the slide plate is located above the screen, and the slide plate forms a sliding structure with the machine body through a threaded rod and a rotating gear.

Technical effects and advantages of the utility model:

1. Compared with the prior art, the device uses a replacement mechanism. When the screen is damaged, by controlling the up and down movement of the pull rod and the slider, when the pull rod is away from the connecting plate, the connecting plate and the screen are taken out by the handle. When the pull rod is inserted back into the connecting plate, the connecting plate and the screen are fixed, which is convenient for replacing the screen and prolonging the service life of the device.

2. Compared with the prior art, the device uses an anti-blocking mechanism to perform multi-level screening of wheat particle size through two sets of screens, and vibrates through a vibrator to improve the screening effect. The rotation of the rotating gear and the force gear is controlled, and the movement of the slide plate is controlled by the threaded rod. The slide plate is used to remove the wheat on the screen from the outlet, thereby avoiding excessive wheat on the screen and causing blockage of the screen.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG1 is a schematic diagram of the main structure of the utility model.

FIG2 is a schematic diagram of the cross-sectional structure of the main body of the utility model.

Fig. 3 is a schematic diagram of the replacement structure of the utility model.

FIG4 is a schematic diagram of the anti-blocking structure of the utility model.

The accompanying drawings are marked as follows: 1. body; 2. replacement mechanism; 201. screen; 202. connecting plate; 203. handle; 204. fixing block; 205. pull rod; 206. slider; 207. return spring; 208. magnet bar; 209. magnet block; 3. feed port; 4. discharge port; 5. bracket; 6. base; 7. anti-blocking mechanism; 701. drive motor; 702. rotating rod; 703. rotating gear; 704. force gear; 705. threaded rod; 706. slide plate; 8. vibrator.

DETAILED DESCRIPTION

The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

Embodiment 1

As shown in Figures 1 to 3, a grain size screening device for wheat harvesting includes a body 1, a side wall of the body 1 is provided with a replacement mechanism 2, and the replacement mechanism 2 includes a screen 201, a connecting plate 202, a handle 203, a fixing block 204, a pull rod 205, a slider 206, a return spring 207, a magnet bar 208 and a magnet block 209;

A screen 201 is inserted into the interior of the body 1, and a connecting plate 202 is fixedly connected to the side wall of the screen 201, and a handle 203 is fixedly connected to the side wall of the connecting plate 202, and a fixed block 204 is fixedly connected to the side wall of the body 1. A pull rod 205 runs through the interior of the fixed block 204, and a slider 206 slidably connected to the outer wall of the pull rod 205 is fixedly connected to the bottom end of the fixed block 204, and the slider 206 is fixedly connected to the side of the reset spring 207 away from the fixed block 204, and a magnet bar 208 is fixedly connected to the upper edge of the slider 206, and a magnet block 209 is fixedly connected to the bottom end of the fixed block 204 and located on the side of the reset spring 207. The slider 206 forms a sliding structure with the body 1 through the pull rod 205 and the reset spring 207, and one end of the pull rod 205 extends to the interior of the connecting plate 202, and the side wall of the body 1 is provided with a slide groove that fits the side wall of the slider 206.

Among them: when the screen 201 is damaged, the pull rod 205 is pulled toward the side away from the connecting plate 202, and the pull rod 205 drives the slider 206 to overcome the elastic force of the reset spring 207 and move up and down along the slide groove of the side wall of the body 1, so that the magnet strip 208 and the magnet block 209 are attracted to each other. By providing a slide groove that fits the side wall of the slider 206 on the side wall of the body 1, the sliding of the slider 206 is limited. When the pull rod 205 is away from the connecting plate 202, the connecting plate 202 and the screen 201 are taken out by the handle 203. When installing, the screen 201 is inserted back into its original position, and the pull rod 205 is pushed toward the direction of the connecting plate 202 to separate the magnet strip 208 and the magnet block 209. At this time, the reset spring 207 returns to its original position, and the pull rod 205 is inserted back into the connecting plate 202, thereby facilitating the replacement of the screen 201 and extending the service life of the device.

Embodiment 2

On the basis of Example 1, the scheme in Example 1 is further detailed and introduced in combination with the following specific working method, as shown in Figures 1 to 4, and the attraction is described below: a feed port 3 is provided at the top of the body 1, a discharge port 4 is provided at the bottom end of the body 1, a bracket 5 is fixedly connected to the bottom end of the body 1, and a base 6 is fixedly connected to the bottom end of the bracket 5, an anti-blocking mechanism 7 is provided on the side of the body 1 away from the replacement mechanism 2, and a vibrator 8 is fixedly connected to the bottom end of the body 1. The anti-blocking mechanism 7 includes a driving motor 701, a rotating rod 702, a rotating gear 703, a force gear 704, a threaded rod 705 and a slide plate 706, a side wall of the body 1 is fixedly connected to the driving motor 701, the output end of the driving motor 701 is fixedly connected to the rotating rod 702, the outer wall of the rotating rod 702 is fixedly connected to the rotating gear 703, the side wall of the rotating gear 703 is meshed with the force gear 704, and the side wall of the force gear 704 is fixedly connected to the body 1, and the outer wall of the threaded rod 705 is threadedly connected with a slide plate 706 which is slidably connected to the inner wall of the body 1; further, the operator puts the harvested wheat into the interior of the body 1 through the feed port 3, and then turns on the vibrator 8 to drive the entire body 1 to vibrate, and screens the wheat through the screen 201. The apertures of the two groups of screens 201 are gradually reduced from top to bottom, which is convenient for grading and screening the wheat according to the particle size, and finally the screened wheat is discharged from the discharge port 4. Then, it is necessary to start the drive motor 701 to drive the rotating rod 702 to rotate, so that it drives the rotating gear 703 to rotate, and then drives the force gear 704 to rotate. When the force gear 704 rotates, it drives the threaded rod 705 to rotate in the same direction, and pushes the slide plate 706 to move left and right along the slide groove on the inner wall of the body 1, so that the wheat on the screen 201 is discharged from the outlet, avoiding excessive wheat on the screen 201 and causing the screen 201 to be blocked.

As a preferred embodiment, the slide plate 706 is located above the screen 201, and the slide plate 706 forms a sliding structure with the body 1 through the threaded rod 705 and the rotating gear 703; further, the rotating rod 702 rotates to drive the rotating gear 703 to rotate, thereby driving the force gear 704 to rotate. When the force gear 704 rotates, it drives the threaded rod 705 to rotate in the same direction, and pushes the slide plate 706 to move left and right along the slide groove on the inner wall of the body 1, thereby facilitating the control of the sliding of the slide plate 706.

The working process of the utility model is as follows: first, the operator brings the harvested wheat into the interior of the machine body 1 through the feed port 3, then turns on the vibrator 8 to drive the entire machine body 1 to vibrate, and screens the wheat through the screen 201. The apertures of the two sets of screens 201 are gradually reduced from top to bottom, which is convenient for grading and screening the wheat according to particle size, and finally the screened wheat is discharged from the discharge port 4. Next, it is necessary to start the drive motor 701 to drive the rotating rod 702 to rotate, so that it drives the rotating gear 703 to rotate, and then drives the force gear 704 to rotate. When the force gear 704 rotates, it drives the threaded rod 705 to rotate in the same direction, and pushes the slide plate 706 to move left and right along the slide groove on the inner wall of the machine body 1, so that the wheat on the screen 201 is discharged from the outlet, and finally, it moves away from the connecting plate. One side of 202 pulls the pull rod 205, and the pull rod 205 drives the slider 206 to overcome the elastic force of the reset spring 207 and move up and down along the slide groove of the side wall of the body 1, so that the magnet strip 208 and the magnet block 209 are attracted to each other. By providing a slide groove that fits the side wall of the slider 206 on the side wall of the body 1, the sliding of the slider 206 is limited. When the pull rod 205 is away from the connecting plate 202, the connecting plate 202 and the screen 201 are taken out by the handle 203. When installing, the screen 201 is inserted back into its original position and the pull rod 205 is pushed toward the direction of the connecting plate 202 to separate the magnet strip 208 and the magnet block 209. At this time, the reset spring 207 returns to its original position and the pull rod 205 is inserted back into the connecting plate 202. This is the working principle of the particle size screening equipment for wheat harvesting.

Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present utility model should be included in the protection scope of the present utility model.

Claims (8)

1. A grain size screening device for wheat harvesting, comprising a body (1), characterized in that a replacement mechanism (2) is provided on a side wall of the body (1), the replacement mechanism (2) comprising a screen (201), a connecting plate (202), a handle (203), a fixing block (204), a pull rod (205), a slider (206), a return spring (207), a magnet bar (208) and a magnet block (209); A screen (201) is inserted into the interior of the machine body (1); a connecting plate (202) is fixedly connected to the side wall of the screen (201); a handle (203) is fixedly connected to the side wall of the connecting plate (202); a fixed block (204) is fixedly connected to the side wall of the machine body (1); a pull rod (205) passes through the interior of the fixed block (204); a slider (206) is fixedly connected to the outer wall of the pull rod (205) and is slidably connected to the side wall of the machine body (1); a return spring (207) is fixedly connected to the bottom end of the fixed block (204); a slider (206) is fixedly connected to the side of the return spring (207) away from the fixed block (204); a magnet bar (208) is fixedly connected to the upper edge of the slider (206); and a magnet block (209) is fixedly connected to the bottom end of the fixed block (204) and located on the side of the return spring (207). 2. A grain size screening device for wheat harvesting according to claim 1, characterized in that: a feed port (3) is provided at the top of the body (1), a discharge port (4) is provided at the bottom of the body (1), a bracket (5) is fixedly connected to the bottom of the body (1), a base (6) is fixedly connected to the bottom of the bracket (5), an anti-blocking mechanism (7) is provided on the side of the body (1) away from the replacement mechanism (2), and a vibrator (8) is fixedly connected to the bottom of the body (1). 3. A grain size screening device for wheat harvesting according to claim 2, characterized in that: the anti-blocking mechanism (7) comprises a driving motor (701), a rotating rod (702), a rotating gear (703), a force-bearing gear (704), a threaded rod (705) and a slide plate (706). 4. A grain size screening device for wheat harvesting according to claim 3, characterized in that: a driving motor (701) is fixedly connected to the side wall of the body (1), a rotating rod (702) is fixedly connected to the output end of the driving motor (701), a rotating gear (703) is fixedly connected to the outer wall of the rotating rod (702), a force-bearing gear (704) is meshed with the side wall of the rotating gear (703), a threaded rod (705) penetrating the interior of the body (1) is fixedly connected to the side wall of the force-bearing gear (704), and a slide plate (706) is threadedly connected to the outer wall of the threaded rod (705) and is slidably connected to the inner wall of the body (1). 5. The grain size screening device for wheat harvesting according to claim 1, characterized in that the sliding block (206) forms a sliding structure with the machine body (1) through a pull rod (205) and a return spring (207). 6. The grain size screening device for wheat harvesting according to claim 1, characterized in that one end of the pull rod (205) extends to the inside of the connecting plate (202). 7. A grain size screening device for wheat harvesting according to claim 1, characterized in that: the side wall of the body (1) is provided with a slide groove which fits with the side wall of the slider (206). 8. A grain size screening device for wheat harvesting according to claim 4, characterized in that: the slide plate (706) is located above the screen (201), and the slide plate (706) forms a sliding structure with the machine body (1) through a threaded rod (705) and a rotating gear (703).