Automatic gravel screening device

Abstract

The utility model relates to an automatic gravel screening device which comprises a screening mechanism which is obliquely arranged on a cross beam of a machine frame below a feeding hopper. The screening mechanism comprises a hollowed-out bottom frame, side plates arranged on the two sides of the hollowed-out bottom frame, a driving mechanism fixed to the side plates, a rotating shaft in driving connection with the driving mechanism, an eccentric wheel connected with the rotating shaft, supporting shafts fixed to the side plates, supporting plates fixed to the two ends of the supporting shafts, inner sleeves arranged on the supporting plates and outer sleeves fixed to the cross beams. The buffer spring is used for connecting the inner sleeve and the outer sleeve, the filter plate is arranged on the hollow underframe, and the rotating seat is fixed on the cross beam. The screening device comprises the machine frame, the screening mechanism and the conveying belt, gravel needing to be screened can be directly poured into the feeding hopper on the machine frame, screened through the screening mechanism and then directly conveyed through the conveying belt, the screening effect is good, the screened gravel can be conveyed away in time at the first time, and the screening device is convenient to use, practical, efficient and capable of saving labor.

Description

Technical Field

[0001] The utility model relates to the technical field of sand and gravel screening equipment, in particular to an automatic sand and gravel screening device. Background Art

[0002] In the concrete production process, gravel needs to be screened. In the prior art, gravel is usually screened manually using a screen, which is inefficient, time-consuming and labor-intensive. In addition, screening equipment can be used for screening, but some screening equipment has poor screening effect, and the screening equipment alone cannot send the screened gravel away in time. Utility Model Content

[0003] In view of the deficiencies in the background technology, the utility model provides an automatic sand and gravel screening device.

[0004] The technical solution adopted by the utility model is: an automatic sand and gravel screening device, comprising:

[0005] A frame, on which a feeding funnel is fixed;

[0006] A screening mechanism, wherein the screening mechanism is tiltedly arranged on the cross beam of the frame below the feeding funnel, and the screening mechanism comprises a hollow base frame, side plates arranged on both sides of the hollow base frame, a driving mechanism fixed on the side plates, a rotating shaft connected to the driving structure, an eccentric wheel connected to the rotating shaft, a supporting shaft fixed on the side plates, a supporting plate fixed on both ends of the supporting shaft, an inner sleeve arranged on the supporting plate, an outer sleeve fixed on the cross beam, a buffer spring for connecting the inner sleeve and the outer sleeve, a filter plate arranged on the hollow base frame, and a rotating seat fixed on the cross beam, wherein the rotating seat is provided with a groove that rolls with the above-mentioned eccentric wheel;

[0007] A conveyor belt is provided below the screening mechanism.

[0008] Furthermore, the frame includes four supporting legs and a welding beam arranged on the top of the supporting legs, and the feeding funnel is welded on the welding beam.

[0009] Furthermore, a discharge plate is provided on one side of the bottom end of the hollow base frame, and limiting side plates are provided on both sides of the discharge plate.

[0010] Furthermore, the driving mechanism is connected to the rotating shaft via a pulley.

[0011] Furthermore, an "L"-shaped connecting plate is welded on the side plate, and the filter plate is fixed on the "L"-shaped connecting plate by bolts.

[0012] The beneficial effects of the utility model are as follows: the screening device of the utility model comprises a frame, a screening mechanism and a conveyor belt, and the gravel to be screened can be directly poured into the feeding funnel on the frame, and then directly transported by the conveyor belt after being screened by the screening mechanism, which not only has a good screening effect, but also can send the screened gravel away in time at the first time, which is convenient, practical, efficient and labor-saving.

[0013] In addition to the objects, features and advantages described above, the present invention has other objects, features and advantages.

[0014] The present invention will be further described in detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of the utility model.

[0016] Figure 2 for Figure 1 Enlarged schematic diagram at point A in the middle.

[0017] Figure 3 It is a schematic diagram of the other side of the utility model.

[0018] Figure 1-3 In: 1. Frame; 2. Feeding hopper; 3. Crossbeam; 4. Hollow base frame; 5. Side plate; 6. Driving mechanism; 7. Rotating shaft; 8. Eccentric wheel; 9. Support shaft; 10. Support plate; 11. Inner sleeve; 12. Outer sleeve; 13. Buffer spring; 14. Filter plate; 15. Rotating seat; 16. Groove; 17. Conveyor belt; 18. Support foot; 19. Welding beam; 20. Discharging plate; 21. Limiting side plate; 22. "L"-shaped connecting plate. DETAILED DESCRIPTION

[0019] 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 of 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.

[0020] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back...), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0021] The utility model provides an automatic sand and gravel screening device.

[0022] In this embodiment, refer to Figure 1-3 The automatic sand and gravel screening device comprises:

[0023] A frame 1, on which a feeding funnel 2 is fixed;

[0024] A screening mechanism, wherein the screening mechanism is tiltedly arranged on the crossbeam 3 of the frame below the feeding funnel 2, and the screening mechanism comprises a hollow base frame 4, side plates 5 arranged on both sides of the hollow base frame 4, a driving mechanism 6 fixed on the side plates 5, a rotating shaft 7 drivingly connected to the driving structure, an eccentric wheel 8 connected to the rotating shaft 7, a supporting shaft 9 fixed on the side plates, a supporting plate 10 fixed on both ends of the supporting shaft 9, an inner sleeve 11 arranged on the supporting plate 10, an outer sleeve 12 fixed on the crossbeam, a buffer spring 13 for connecting the inner sleeve and the outer sleeve, a filter plate 14 arranged on the hollow base frame, and a rotating seat 15 fixed on the crossbeam, wherein the rotating seat is provided with a groove 16 for rolling cooperation with the above-mentioned eccentric wheel;

[0025] A conveyor belt 17 is provided below the screening mechanism.

[0026] The screening device in the above technical solution includes a frame, a screening mechanism and a conveyor belt. The gravel to be screened can be directly poured into the feeding funnel on the frame, and then directly transported by the conveyor belt after being screened by the screening mechanism. Not only is the screening effect good, but the screened gravel can also be sent away in time, which is convenient, practical, efficient and labor-saving.

[0027] Among them, the screening mechanism drives the eccentric wheel to rotate through the driving mechanism, so that the filter plate vibrates up and down, thereby improving the screening effect and screening efficiency.

[0028] Specifically, the frame includes four legs 18 and a welding beam 19 arranged on the top of the legs, and the feeding funnel is welded on the welding beam; a discharge plate 20 is provided on one side of the bottom end of the hollow base frame, and limiting side plates 21 are provided on both sides of the discharge plate.

[0029] After screening, due to the inclined setting of the filter plate, the large particles of sand and gravel will naturally roll out from the discharge plate.

[0030] Specifically, the driving mechanism is connected to the rotating shaft by a pulley; an "L"-shaped connecting plate 22 is welded on the side plate, and the filter plate is fixed on the "L"-shaped connecting plate by bolts.

[0031] The filter plate is a detachable structure, which is convenient for disassembly and replacement of the filter plate

[0032] Technical personnel should note: Although the utility model has been described according to the above specific implementation methods, the utility model concept of the utility model is not limited to this utility model. Any modification using the utility model concept will be included in the scope of protection of this patent right.

Claims

1. An automatic gravel screening device, characterized in that include: A frame, on which a feeding funnel is fixed; A screening mechanism, wherein the screening mechanism is tiltedly arranged on the cross beam of the frame below the feeding funnel, and the screening mechanism comprises a hollow base frame, side plates arranged on both sides of the hollow base frame, a driving mechanism fixed on the side plates, a rotating shaft connected to the driving structure, an eccentric wheel connected to the rotating shaft, a supporting shaft fixed on the side plates, a supporting plate fixed on both ends of the supporting shaft, an inner sleeve arranged on the supporting plate, an outer sleeve fixed on the cross beam, a buffer spring for connecting the inner sleeve and the outer sleeve, a filter plate arranged on the hollow base frame, and a rotating seat fixed on the cross beam, wherein the rotating seat is provided with a groove that rolls with the above-mentioned eccentric wheel; A conveyor belt is provided below the screening mechanism.

2. The automatic sand and gravel screening device according to claim 1, characterized in that: The frame comprises four supporting legs and a welding beam arranged on the top of the supporting legs, and the feeding funnel is welded on the welding beam.

3. The automatic gravel screening device according to claim 1 is characterized in that: A discharge plate is provided on one side of the bottom end of the hollow base frame, and limiting side plates are provided on both sides of the discharge plate.

4. The automatic gravel screening device according to claim 1, characterized in that: The driving mechanism is connected to the rotating shaft via a pulley.

5. The automatic sand and gravel screening device according to claim 1, characterized in that: An "L"-shaped connecting plate is welded on the side plate, and the filter plate is fixed on the "L"-shaped connecting plate by bolts.

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