Screening hopper for loading machine

Abstract

The utility model discloses a screening hopper for a loader, which belongs to the technical field of loaders and comprises a push plate, the push plate is hinged with a clamping hopper, a hydraulic oil cylinder is arranged between the push plate and the clamping hopper, the bottom end of the hydraulic oil cylinder is arranged on the push plate, the output end of the hydraulic oil cylinder is arranged on the clamping hopper, and the hydraulic oil cylinder can control the clamping hopper to rotate relative to the push plate. The front end of the clamping hopper is connected with a filter screen through a bolt, and the filter screen blocks large stones and prevents the large stones from entering the space between the clamping hopper and the push plate; and the filter screens have different specifications. During charging, the clamping hopper is connected with the bottom of the push plate, large stones are blocked outside the filter screen, and materials fall between the clamping hopper and the push plate; during discharging, the clamping hopper and the bottom of the push plate are cracked, and the materials fall down; the bucket or loading equipment can be prevented from being damaged by large stones during carrying; the effective loading space of large stones in the bucket is prevented from being reduced; when discharging is not needed, large stones are poured out, and the working time is prolonged; and when stones with other volumes need to be filtered, the filter screens with corresponding specifications are replaced.

Description

Technical Field

[0001] The utility model belongs to the technical field of loaders, and in particular relates to a screening bucket for a loader. Background Art

[0002] The statements in this section merely provide background technical information related to the present invention and do not necessarily constitute prior art.

[0003] The loading and unloading operations of the loader bucket are completed through the cooperation of the bucket, boom, connecting rod, rocker arm, bucket cylinder and boom cylinder of its working device. The bucket serves as a loading carrier for the materials. At present, the main function of the loader bucket is to transport and load and unload materials of different sizes. Since there are large stones in the materials, if the large stones are not screened out, the following will happen: 1) During the transportation process, there is a great possibility of damage to the bucket or loading equipment; 2) Large stones occupy a large amount of space in the bucket, reducing the effective loading space of the bucket and increasing the power consumption of transportation; 3) When unloading, the large stones need to be poured out first, which increases the working time. Utility Model Content

[0004] In view of the above problems, the utility model provides a screening bucket for a loader. When loading, the clamping bucket is connected to the bottom of the push plate, and the grid of the filter screen is used to clamp large stones so that they cannot enter the clamping bucket and the push plate. When unloading, the clamping bucket is separated from the bottom of the push plate, and the material is unloaded from the clamping bucket and the bottom of the push plate, so that the large stones can be screened out without affecting the material transportation.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A screening bucket for a loader comprises a push plate, which is hinged to a clamping bucket. A hydraulic cylinder is arranged between the push plate and the clamping bucket. The bottom end of the hydraulic cylinder is arranged on the push plate, and the output end is arranged on the clamping bucket. The hydraulic cylinder can control the relative rotation of the clamping bucket relative to the push plate. The front end of the clamping bucket is connected to a filter screen by bolts. The filter screen can block large stones of a certain size to prevent the large stones from entering the space between the clamping bucket and the push plate. The filter screen has different specifications.

[0007] Preferably, the push plate comprises a push plate body, two first connecting ear plates are fixedly arranged in the middle position of the push plate body, and two second connecting ear plates are fixedly arranged on both sides of the two first connecting ear plates.

[0008] Preferably, two clamp connecting side plates are fixedly provided on both sides of the push plate body, and a clamp passage opening is opened at the top of the push plate body between the two clamp connecting side plates on the same side, for the clamp hinge plate of the clamp to pass through; the clamp connecting side plate is provided with a first hinge hole at the upper part, a second hinge hole at the lower part, and a limiting clamp is provided on the front side of the bottom end.

[0009] Preferably, the bucket comprises two bucket side plates, the bottoms of the two bucket side plates are connected by a bucket shovel plate, and a bucket limiting plate is arranged on the outer sides of the two bucket side plates, and the bucket limiting plate is a part of the bucket shovel plate.

[0010] Preferably, the bucket hinge plate is fixed on the top of the bucket side plate, a third hinge hole is opened on the top of the bucket hinge plate, and a first hinge hole is opened on the bottom of the bucket hinge plate; the first hinge hole, the second hinge hole and the third hinge hole are of the same size and are passed through by pins of the same specification.

[0011] Preferably, the bottom end of the hydraulic cylinder is hinged to the push plate via a pin passing through two second hinge holes; the output end of the hydraulic cylinder is hinged to the clamping bucket via a pin passing through two third hinge holes.

[0012] Preferably, the two clamping bucket side plates are located between the two clamping bucket connecting side plates, and under the action of the limiting bayonet and the clamping bucket limiting plate, the clamping bucket and the push plate form a bucket.

[0013] Preferably, the filter screen comprises a lower support plate and an upper support plate arranged in parallel, a plurality of grilles are fixedly arranged between the lower support plate and the upper support plate, and the spacing between adjacent grilles is equal; a group of first bolt holes is arranged on the lower support plate between every two grilles, and each group includes two; a small ear plate is fixedly arranged on each side of the upper support plate, and two second bolt holes are opened on the small ear plate; the first bolt hole and the second bolt hole are of the same size, and both are matched with bolts for use.

[0014] Preferably, two second bolt holes are provided on the upper front end of the bucket side plate, and the position and spacing are the same as the second bolt holes on the small ear plate; the total length of the two small ear plates and the upper support plate is equal to the distance between the two bucket side plates; the front end of the bucket shovel plate is provided with multiple groups of first bolt holes, and the position and spacing are the same as the first bolt holes on the lower support plate; the lengths of the upper support plate and the lower support plate are consistent.

[0015] Preferably, the filter screen has various specifications, the difference being that the grid spacing is different.

[0016] Compared with the prior art, the utility model has the following advantages and positive effects:

[0017] The utility model can block large rocks of a certain volume outside the filter screen at the front side of the clamp bucket during loading work. At this time, under the action of the hydraulic cylinder, the clamp bucket is connected with the bottom of the push plate, and the material passes through the filter screen and falls between the clamp bucket and the push plate. When unloading the material, the hydraulic cylinder is controlled to split the bottom of the clamp bucket and the push plate, and the material falls, thus completing one loading and unloading work. The utility model avoids the situation that the bucket or loading equipment is damaged due to the presence of large rocks during the transportation process. The utility model prevents large rocks from occupying a large amount of space in the bucket, thereby reducing the effective loading space of the bucket. There is no need to pour out the large rocks during unloading, thereby increasing the working time.

[0018] When the loading material of the utility model has other requirements and it is necessary to filter stones of other volumes, the current filter screen can be removed and replaced with a corresponding filter screen. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The drawings in the specification, which constitute a part of the present invention, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention.

[0020] Figure 1 This is a front view of the screening bucket of the embodiment of the utility model when it is closed;

[0021] Figure 2 This is a schematic diagram of the back side of the screening bucket of the embodiment of the utility model when it is closed;

[0022] Figure 3 It is a side view of the screening bucket of the embodiment of the utility model when it is closed;

[0023] Figure 4 This is a front view of the filter screen of an embodiment of the utility model;

[0024] Figure 5 This is a front view of the screening bucket of the embodiment of the utility model when it is opened;

[0025] In the figure:

[0026] 1. Push plate; 11. Push plate body; 111. Bucket insertion port; 12. Bucket connecting side plate; 121. First hinge hole; 122. Second hinge hole; 123. Limiting bayonet; 13. Second connecting ear plate; 14. First connecting ear plate; 2. Bucket; 21. Bucket side plate; 22. Bucket shovel plate; 221. Bucket limiting plate; 23. Bucket hinge plate; 231. Third hinge hole; 3. Filter; 31. Lower support plate; 311. First bolt hole; 32. Upper support plate; 33. Grille; 34. Small ear plate; 341. Second bolt hole; 35. Bolt; 4. Hydraulic cylinder. DETAILED DESCRIPTION

[0027] It should be noted that the following detailed descriptions are all exemplary and are intended to provide further explanation of the present invention. Unless otherwise specified, all technical and scientific terms used herein have the same meanings as those commonly understood by those skilled in the art to which the present invention belongs.

[0028] The utility model is described in detail below in conjunction with the accompanying drawings. The present embodiment discloses a screening bucket for a loader, such as Figure 1 As shown, it includes a push plate 1, which is hinged with a clamping bucket 2. A hydraulic cylinder 4 is arranged between the push plate 1 and the clamping bucket 2. The bottom end of the hydraulic cylinder 4 is arranged on the push plate 1, and the output end is arranged on the clamping bucket 2. The hydraulic cylinder 4 can control the relative rotation of the clamping bucket 2 relative to the push plate 1; the front end of the clamping bucket 2 is connected to the filter screen 3 by bolts, and the filter screen 3 can block large stones of a certain size to prevent large stones from entering the space between the clamping bucket 2 and the push plate 1. The filter screen 3 has different specifications.

[0029] like Figure 1 , Figure 2 As shown, the push plate 1 includes a push plate body 11, two first connecting ear plates 14 are fixedly arranged in the middle of the push plate body 11, and two second connecting ear plates 13 are fixedly arranged on both sides of the two first connecting ear plates 14. It can be understood that the first connecting ear plates 14 and the second connecting ear plates 13 are used to connect the push plate 1 to the loader, and are used to control the lifting, lowering, flipping and other actions of the push plate 1.

[0030] like Figure 1 , Figure 2 As shown, two clamp connecting side plates 12 are fixedly provided on both sides of the push plate body 11, and a clamp passing entrance 111 is opened at the top of the push plate body 11 between the two clamp connecting side plates 12 on the same side for the clamp hinge plate 23 of the clamp 2 to pass through.

[0031] like Figure 1 , Figure 2 As shown, the upper part of the clamping bucket connecting side plate 12 is provided with a first hinge hole 121, the lower part is provided with a second hinge hole 122, and the front side of the bottom end is provided with a limit stopper 123. Figure 1 , Figure 2 As shown, the bucket 2 includes two bucket side plates 21 , the bottoms of the two bucket side plates 21 are connected by a bucket shovel plate 22 , and a bucket limiting plate 221 is provided on the outer sides of the two bucket side plates 21 . It can be understood that the bucket limiting plate 221 is a part of the bucket shovel plate 22 .

[0032] In this embodiment, if Figure 1 , Figure 2As shown, the top of the bucket side plate 21 is fixedly connected with the bucket hinge plate 23, and the top of the bucket hinge plate 23 is provided with a third hinge hole 231; it can be understood that the bottom of the bucket hinge plate 23 is also provided with a first hinge hole 121, and the pin shaft is passed through the bucket connecting side plate 12 and the first hinge hole of the bucket hinge plate 23, so as to realize the hinge connection between the push plate 1 and the bucket 2.

[0033] It can be understood that the first hinge hole, the second hinge hole and the third hinge hole are of the same size and are fixed by pins of the same specification; the first hinge hole 121 is located at the clamping bucket through-port 111, so that the clamping bucket 2 can rotate relative to the push plate 1 with the pin on the first hinge hole 121 as the fulcrum.

[0034] like Figure 1 , Figure 2 As shown, the pin is passed through the two second hinge holes 122 and the bottom end of the hydraulic cylinder 4, so that the hydraulic cylinder 4 is hinged to the push plate 1; the pin is passed through the two third hinge holes 231 and the output end of the hydraulic cylinder 4, so that the hydraulic cylinder 4 is hinged to the clamp 2; it can be understood that when the output end of the hydraulic cylinder 4 is retracted, the clamp 2 rotates relative to the push plate 1, and the bottom rear end of the clamp side plate 21 will be away from the push plate 1; similarly, when the output end of the hydraulic cylinder 4 is extended, the clamp 2 rotates relative to the push plate 1, and the bottom rear end of the clamp side plate 21 will be close to the push plate 1. It can be understood that the oil circuit of the hydraulic cylinder 4 is connected to the loader.

[0035] In this embodiment, the push plate 1 and the clamping bucket 2 can together form a screening bucket. Figure 1 , Figure 2 , Figure 3 As shown, the two clamping bucket side plates 21 are located between the two clamping bucket connecting side plates 12. Since a limiting slot 123 is provided on the front side of the bottom end of the clamping bucket connecting side plate 12, and clamping bucket limiting plates 221 are provided on the bottom ends of both sides of the clamping bucket side plates 21, when the output end of the hydraulic cylinder 4 is extended, the clamping bucket 2 rotates relative to the push plate 1. When the rear end of the bottom of the clamping bucket side plate 21 is close to the push plate 1, under the action of the limiting slot 123 and the clamping bucket limiting plate 221, the clamping bucket 2 and the push plate 1 form a screening bucket.

[0036] like Figure 1 , Figure 4 As shown, a filter screen 3 is arranged on the front end of the clamp 2, and the filter screen 3 includes a lower support plate 31 and an upper support plate 32. A plurality of grilles 33 are fixedly arranged between the lower support plate 31 and the upper support plate 32, and the spacing between adjacent grilles 33 is equal; a group of first bolt holes 311 is arranged on the lower support plate 31 between every two grilles, and each group includes two; the upper support plate 32 is arranged parallel to the lower support plate 31; a small ear plate 34 is fixedly arranged on both sides of the upper support plate 32, and two second bolt holes 341 are opened on the small ear plate 34. The first bolt hole 311 is the same size as the second bolt hole 341, and both are matched with the bolt 35 for use.

[0037] It should be noted that two second bolt holes 341 are also provided at the upper front end of the bucket side plate 21, and the position and spacing are the same as the second bolt holes on the small ear plate 34; the total length of the two small ear plates 34 and the upper support plate 32 is equal to the distance between the two bucket side plates 21, which makes it possible to connect the upper support plate 32 of the filter screen 3 with the bucket side plate 21 through bolts 35.

[0038] In this embodiment, if Figure 1 , Figure 5 As shown, the front end of the bucket shovel plate 22 is also provided with a plurality of first bolt holes 311, the positions and spacings of which are the same as those of the first bolt holes on the lower support plate 31; the upper support plate 32 is consistent with the lower support plate 31 in length, so that the lower support plate 31 of the filter screen 3 can be connected to the bucket shovel plate 22 by bolts 35; thus, the filter screen 3 is installed on the bucket 2. It is understandable that the filter screen 3 with grids 33 of different spacings can be selected to filter stones of different volumes.

[0039] Working principle:

[0040] Install the filter screen 3 with a certain spacing grid on the clamping bucket 2, control the hydraulic cylinder 4 to extend, and the clamping bucket 2 is connected to the bottom of the push plate 1 to form a screening bucket. When loading, the filter screen with the grid can block large stones of a certain volume outside the screening bucket, and the material passes through the filter screen and falls between the clamping bucket 2 and the push plate 1;

[0041] When the material is transported to the position where it needs to be unloaded, the hydraulic cylinder 4 is controlled to contract, so that the clamp 2 rotates relative to the push plate 1, the clamp shovel plate 22 is away from the push plate 1, and the clamp 2 is separated from the bottom of the push plate 1, so that the material falls;

[0042] Then the hydraulic cylinder 4 is controlled to extend, and the clamping bucket 2 and the push plate 1 form a screening bucket to continue loading materials;

[0043] When the loading material has other requirements and it is necessary to filter stones of other volumes, the current filter can be removed and replaced with the corresponding filter.

[0044] Although the above describes the specific implementation methods of the utility model in combination with the accompanying drawings, it is not intended to limit the scope of protection of the utility model. Technical personnel in the relevant field should understand that on the basis of the technical solution of the utility model, various modifications or deformations that can be made by technical personnel in this field without creative work are still within the scope of protection of the utility model.

Claims

1. A screening bucket for a loader, characterized in that: It includes a push plate, which is hinged with the clamping bucket. A hydraulic cylinder is arranged between the push plate and the clamping bucket. The bottom end of the hydraulic cylinder is arranged on the push plate, and the output end is arranged on the clamping bucket. The hydraulic cylinder can control the relative rotation of the clamping bucket relative to the push plate. The front end of the clamp is connected to a filter screen by bolts. The filter screen can block large stones of a certain size and prevent the large stones from entering the space between the clamp and the push plate. The filter screen has different specifications.

2. A screening bucket for a loader as claimed in claim 1, characterized in that: The push plate comprises a push plate body, two first connecting ear plates are fixedly arranged in the middle of the push plate body, and two second connecting ear plates are fixedly arranged on both sides of the two first connecting ear plates.

3. A screening bucket for a loader as claimed in claim 2, characterized in that: Two clamp connecting side plates are fixedly arranged on both sides of the push plate body, and a clamp passage entrance is opened at the top of the push plate body between the two clamp connecting side plates on the same side, for the clamp hinge plate of the clamp to pass through; the upper part of the clamp connecting side plate is provided with a first hinge hole, the lower part is provided with a second hinge hole, and a limiting clamp is provided on the front side of the bottom end.

4. A screening bucket for a loader as claimed in claim 3, characterized in that: The clamping bucket comprises two clamping bucket side plates, the bottoms of the two clamping bucket side plates are connected by a clamping bucket shovel plate, and a clamping bucket limiting plate is arranged on the outer sides of the two clamping bucket side plates, and the clamping bucket limiting plate is a part of the clamping bucket shovel plate.

5. A screening bucket for a loader as claimed in claim 4, characterized in that: The clamp bucket hinge plate is fixed on the top of the clamp bucket side plate, a third hinge hole is opened on the top of the clamp bucket hinge plate, and a first hinge hole is opened on the bottom of the clamp bucket hinge plate; the first hinge hole, the second hinge hole and the third hinge hole are of the same size and are passed through by pins of the same specification.

6. A screening bucket for a loader as claimed in claim 5, characterized in that: The bottom end of the hydraulic cylinder is hinged to the push plate through a pin shaft passing through the two second hinge holes; the output end of the hydraulic cylinder is hinged to the clamping bucket through a pin shaft passing through the two third hinge holes.

7. A screening bucket for a loader as claimed in claim 4, characterized in that: The two clamping bucket side plates are located between the two clamping bucket connecting side plates. Under the action of the limiting bayonet and the clamping bucket limiting plate, the clamping bucket and the push plate form a bucket.

8. A screening bucket for a loader as claimed in claim 7, characterized in that: The filter screen includes a lower support plate and an upper support plate arranged in parallel, a plurality of grilles are fixedly arranged between the lower support plate and the upper support plate, and the spacing between adjacent grilles is equal; a group of first bolt holes is arranged on the lower support plate between every two grilles, and each group includes two; a small ear plate is fixedly arranged on each side of the upper support plate, and two second bolt holes are opened on the small ear plate; the first bolt hole and the second bolt hole are of the same size and are both matched with bolts for use.

9. A screening bucket for a loader as claimed in claim 8, characterized in that: Two second bolt holes are arranged on the upper front end of the bucket side plate, and the position and spacing are the same as the second bolt holes on the small ear plate; the total length of the two small ear plates and the upper support plate is equal to the distance between the two bucket side plates; a plurality of groups of first bolt holes are arranged on the front end of the bucket shovel plate, and the position and spacing are the same as the first bolt holes on the lower support plate; the length of the upper support plate is consistent with that of the lower support plate.

10. A screening bucket for a loader as claimed in claim 8, characterized in that: The filter screen has various specifications, the difference being that the spacing between the grilles is different.

Images