Powerful screening crusher

Abstract

The utility model relates to the technical field of screening and crushing equipment, in particular to a powerful screening and crushing machine, which can effectively prevent fragments generated by crushing from being popped out from a feed hopper, avoid damage to surrounding personnel and improve the use safety of the equipment. Comprising a machine body, a feeding port is formed in the top of the machine body, a feeding hopper fixedly communicates with the feeding port, a breaking mechanism and a screening mechanism are arranged in the machine body, four sets of supporting legs are fixedly arranged at the bottom end of the machine body, a discharging port is formed in the bottom end of the machine body, and discharging covers fixedly communicate with the left end and the right end of the machine body; the lower edges of the inner side ends of the two sets of protective covers are provided with fillets, the output ends of the two sides of the two sets of bidirectional air cylinders are fixedly provided with connecting blocks, the outer sides of the four sets of connecting blocks are fixedly connected with transmission racks, and the four sets of connecting shafts are fixedly sleeved with gears. The four transmission racks are engaged with the four gears correspondingly.

Description

Technical Field

[0001] The utility model relates to the technical field of screening and crushing equipment, in particular to a powerful screening crusher. Background Art

[0002] Calcium oxide can be produced by calcining limestone. Before calcining, limestone needs to be crushed to a suitable size and at the same time, too small fragments need to be removed. Based on this, equipment that can screen limestone while crushing has emerged.

[0003] Existing screening and crushing equipment, such as a screening crusher disclosed in the patent publication number CN220048318U, includes a machine body, a crushing mechanism, a feed hopper, a discharge cover, etc. This equipment has the advantage that the screening efficiency of each part of the screening plate is similar and local blockage is not easy, but there are still certain drawbacks in actual use.

[0004] In the above patent, the feed hopper is open. During the crushing process, the fragments generated by crushing are likely to pop out from the feed hopper, and the popped-out fragments are likely to cause damage to the surrounding personnel, and the safety of the equipment is poor. Summary of the Utility Model

[0005] To solve the above technical problems, the utility model provides a powerful screening crusher that can effectively prevent the fragments generated by crushing from popping out of the feed hopper, avoid causing damage to the surrounding personnel, and improve the safety of equipment use.

[0006] Technical Solution

[0007] To achieve the above object, the utility model provides the following technical solution: a powerful screening crusher, including a machine body and a protection mechanism. The top of the machine body is provided with a feed inlet, and a feed hopper is fixedly communicated with the feed inlet. A crushing mechanism and a screening mechanism are arranged in the machine body. Four groups of legs are fixedly arranged at the bottom end of the machine body. A discharge port is arranged at the bottom of the machine body. Discharge covers are fixedly communicated with both the left and right ends of the machine body. The protection mechanism includes two groups of double-acting cylinders and two groups of protection covers. The two groups of double-acting cylinders are symmetrically and fixedly installed at the front and rear ends of the feed hopper. Sinking grooves are arranged on both sides of the top end of the feed hopper. Two groups of connecting shafts are fixedly arranged on both protection covers. Two groups of left support plates and two groups of right support plates are symmetrically and fixedly connected to the top end of the machine body. The two groups of protection covers are respectively rotatably installed on the two groups of left support plates and two groups of right support plates through the connecting shafts, and the two groups of protection covers are symmetrically covered on the feed hopper through cooperation with the sinking grooves. The lower edges of the inner ends of the two groups of protection covers are provided with rounded corners. Connecting blocks are fixedly arranged at the output ends on both sides of the two groups of double-acting cylinders. Transmission racks are fixedly connected to the outer sides of the four connecting blocks. Gears are fixedly sleeved on the four connecting shafts. The four transmission racks are respectively meshed with the four gears.

[0008] Preferably, supporting seats are fixedly connected to the inner sides of the two groups of left support plates and right support plates. A sliding groove is provided at the top end of the supporting seat, and sliding rails matched with the sliding groove are provided at the bottom ends of the four groups of transmission racks.

[0009] Preferably, limiting blocks are fixedly connected to the outer ends of the four groups of transmission racks.

[0010] Preferably, buffer pads are fixedly connected to the bottom ends of the two groups of protective covers.

[0011] Preferably, reinforcing plates are fixedly connected to the bottom ends of the inner sides of the two groups of left support plates and the two groups of right support plates.

[0012] Compared with the prior art, the beneficial effects of the present utility model are as follows: during use, initially, the double-acting cylinder is in the extended state, so that the protective cover is installed on the feed hopper. When feeding, by starting the double-acting cylinder, the double-acting cylinder drives the connecting block to move inward, and the connecting block drives the transmission rack to move inward. Furthermore, the transmission rack drives the two groups of protective covers to turn outward around the connecting shaft through meshing with the gear, so that the protective cover is opened. Then, raw materials are added into the machine body through the feed hopper for screening and crushing. After the feeding is completed, the double-acting cylinder is pushed to move the connecting block outward, and the connecting block pushes the transmission rack to move outward. Furthermore, the transmission rack drives the two groups of protective covers to turn inward around the connecting shaft through meshing with the gear, so that the protective cover is covered on the feed hopper again. By blocking the fragments generated by crushing with the protective cover, it can effectively prevent the fragments generated by crushing from bursting out of the feed hopper, avoid damaging the surrounding personnel, and improve the safety of equipment use. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 is an axonometric structural view of the present utility model;

[0014] Figure 2 is an axonometric structural view of the feed hopper in the present utility model;

[0015] Figure 3 is an axonometric structural view of the protection mechanism in the present utility model;

[0016] Figure 4 is a bottom axonometric structural view of the protection mechanism in the present utility model;

[0017] Figure 5 is the present utility model Figure 3 front view structural diagram;

[0018] Reference signs in the drawings: 1, machine body; 2, feed hopper; 3, support leg; 4, discharge cover; 5, double-acting cylinder; 6, protective cover; 7, connecting shaft; 8, left support plate; 9, right support plate; 10, connecting block; 11, transmission rack; 12, gear; 13, rounded corner; 14, supporting seat; 15, slide rail; 16, limit block; 17, buffer cushion plate; 18, reinforcing plate. Detailed implementation manners

[0019] The following combines the drawings and embodiments to further describe in detail the specific implementation manners of the present utility model. The following embodiments are used to illustrate the present utility model, but are not used to limit the scope of the present utility model.

[0020] Embodiment

[0021] Please refer to Figures 1-5 , the powerful screening crusher of the present utility model includes a machine body 1. A feed inlet is provided at the top of the machine body 1, and a feed hopper 2 is fixedly communicated with the feed inlet. A crushing mechanism and a screening mechanism are arranged in the machine body 1. Four groups of support legs 3 are fixedly provided at the bottom end of the machine body 1. A discharge port is provided at the bottom of the machine body 1. Discharge covers 4 are fixedly communicated with both the left and right ends of the machine body 1. Two groups of double-acting cylinders 5 are symmetrically and fixedly installed at the front and rear ends of the feed hopper 2. Sinking grooves are provided on both sides of the top end of the feed hopper 2. Two groups of connecting shafts 7 are fixedly provided on each of the two groups of protective covers 6. Two groups of left support plates 8 and two groups of right support plates 9 are symmetrically and fixedly connected to the top end of the machine body 1. The two groups of protective covers 6 are respectively rotatably installed on the two groups of left support plates 8 and the two groups of right support plates 9 through the connecting shafts 7, and the two groups of protective covers 6 symmetrically cover the feed hopper 2 through cooperation with the sinking grooves. Rounded corners 13 are provided on the lower edges of the inner ends of the two groups of protective covers 6. Connecting blocks 10 are fixedly provided at the output ends on both sides of the two groups of double-acting cylinders 5. Transmission racks 11 are fixedly connected to the outside of the four groups of connecting blocks 10. Gears 12 are fixedly sleeved on the four groups of connecting shafts 7. The four groups of transmission racks 11 are respectively meshed with the four groups of gears 12; during use, initially, the double-acting cylinder 5 is in the extended state, so that the protective cover 6 covers the feed hopper 2. When feeding, by starting the double-acting cylinder 5, the double-acting cylinder 5 drives the connecting block 10 to move inwards, the connecting block 10 drives the transmission rack 11 to move inwards, and further the transmission rack 11 drives the two groups of protective covers 6 to turn outwards with the connecting shaft 7 as the axis through meshing with the gear 12, so that the protective cover 6 is opened. Then, the raw materials are added into the machine body 1 through the feed hopper 2 for screening and crushing. After the principle is added, the double-acting cylinder 5 is pushed to move the connecting block 10 outwards, the connecting block 10 pushes the transmission rack 11 outwards, and further the transmission rack 11 drives the two groups of protective covers 6 to turn inwards with the connecting shaft 7 as the axis through meshing with the gear 12, so that the protective cover 6 covers the feed hopper 2 again. By blocking the broken blocks generated by crushing with the protective cover 6, it can effectively prevent the broken blocks generated by crushing from popping out of the feed hopper, avoid causing damage to the surrounding personnel, and improve the safety of equipment use.

[0022] On the inner sides of the two groups of the left support plates 8 and the right support plates 9, supporting seats 14 are fixedly connected. A sliding groove is provided at the top end of the supporting seat 14, and sliding rails 15 matched with the sliding groove are provided at the bottom ends of the four groups of transmission racks 11. By providing the supporting seat 14 and the sliding rail 15, the transmission rack 11 can be supported during the moving process, making the moving process of the transmission rack 11 smoother.

[0023] Limit blocks 16 are fixedly connected to the outer ends of the four groups of the transmission racks 11. By providing the limit blocks 16, it can be avoided that when the double-acting cylinder 5 pulls the transmission rack 11 to move inwards, the transmission rack 11 is disengaged from the gear 12, playing a role of inward limiting.

[0024] Buffer pads 17 are fixedly connected to the bottom ends of the two groups of the protective covers 6. By providing the buffer pads 17, it can be avoided that the fragments generated during the crushing process impact the bottom end of the protective cover 6, playing a buffering role.

[0025] Reinforcing plates 18 are fixedly connected to the bottom ends of the inner sides of the two groups of the left support plates 8 and the two groups of the right support plates 9. By providing the reinforcing plates 18, the connection between the left support plate 8 and the right support plate 9 and the machine body 1 can be made more firm and stable.

[0026] For the powerful screening crusher of the present utility model, its working principle is as follows. During use, initially, the double-acting cylinder 5 is in the extended state, so that the protective cover 6 is covered on the feed hopper 2. When feeding, by starting the double-acting cylinder 5, the double-acting cylinder 5 drives the connecting block 10 to move inwards, and the connecting block 10 drives the transmission rack 11 to move inwards. Then, the transmission rack 11 drives the two groups of protective covers 6 to turn outwards with the connecting shaft 7 as the axis through the meshing with the gear 12, so that the protective cover 6 is opened. Then, the raw materials are added into the machine body 1 through the feed hopper 2 for screening and crushing. After the raw materials are added, the double-acting cylinder 5 is pushed to move the connecting block 10 outwards, so that the connecting block 10 pushes the transmission rack 11 to move outwards. Then, the transmission rack 11 drives the two groups of protective covers 6 to turn inwards with the connecting shaft 7 as the axis through the meshing with the gear 12, so that the protective cover 6 is covered on the feed hopper 2 again. The fragments generated by the crushing are blocked by the protective cover 6, and the fragments generated by the crushing are buffered by the buffer pad 17 to prevent direct impact on the bottom end of the protective cover 6.

[0027] The powerful screening crusher of the present utility model has common mechanical installation, connection or setting methods, and any method that can achieve its beneficial effects can be implemented; the two-way cylinder of the powerful screening crusher of the present utility model is purchased on the market, and technicians in this industry only need to install and operate it according to the attached user manual. In addition, the machine body 1, the crushing mechanism and the screening mechanism in this application are all cited from a screening crusher disclosed in the patent publication number CN220048318U, which belongs to the prior art. The specific structure and working principle have been described in detail in the disclosed patent, so no further elaboration will be made here.

[0028] The above are only the preferred embodiments of the present utility model. It should be noted that for those of ordinary skill in the art, without departing from the technical principle of the present utility model, several improvements and modifications can be made, and these improvements and modifications should also be regarded as the protection scope of the present utility model.

Claims

1. A high-power screening crusher, comprising a body (1), characterized in that: It also includes protective agencies; A machine body (1), wherein a feed port is provided at the top of the machine body (1), a feed hopper (2) is fixedly connected to the feed port, a breaking mechanism and a screening mechanism are provided in the machine body (1), four groups of legs (3) are fixedly provided at the bottom of the machine body (1), a discharge port is provided at the bottom of the machine body (1), and discharge covers (4) are fixedly connected to the left and right ends of the machine body (1); The protective mechanism comprises two groups of bidirectional cylinders (5) and two groups of protective covers (6), the two groups of bidirectional cylinders (5) are symmetrically fixedly installed at the front and rear ends of the feed hopper (2), the top of the feed hopper (2) is provided with sinks on both sides, the two groups of protective covers (6) are fixedly provided with two groups of connecting shafts (7), the top of the machine body (1) is symmetrically fixedly connected with two groups of left supporting plates (8) and two groups of right supporting plates (9), the two groups of protective covers (6) are respectively rotatably installed on the two groups of left supporting plates (8) and two groups of right supporting plates (9) through the connecting shafts (7). The two sets of protective covers (6) are symmetrically covered on the feed hopper (2) by cooperating with the sink, and the lower edges of the inner ends of the two sets of protective covers (6) are provided with chamfers (13). The output ends of the two sides of the two sets of bidirectional cylinders (5) are fixedly provided with connecting blocks (10), and the outer sides of the four sets of connecting blocks (10) are fixedly connected with transmission racks (11). The four sets of connecting shafts (7) are fixedly sleeved with gears (12), and the four sets of transmission racks (11) are respectively meshed with the four sets of gears (12).

2. The powerful screening crusher according to claim 1, characterized in that: The inner sides of the two groups of left support plates (8) and right support plates (9) are fixedly connected with support seats (14), the top of the support seats (14) is provided with a slide groove, and the bottom ends of the four groups of transmission racks (11) are provided with a slide rail (15) matched with the slide groove.

3. The powerful screening crusher according to claim 2, characterized in that: The outer ends of the four groups of transmission racks (11) are all fixedly connected to limit blocks (16).

4. The powerful screening crusher according to claim 3, characterized in that: The bottom ends of the two groups of protective covers (6) are fixedly connected with a buffer pad (17).

5. The powerful screening crusher according to claim 4, characterized in that: The inner bottom ends of the two groups of left supporting plates (8) and the two groups of right supporting plates (9) are fixedly connected with reinforcing plates (18).

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