Rock crushing device for rock excavation

Abstract

The utility model discloses a rock crushing device for rock excavation, which belongs to the technical field of rock crushing devices and comprises a crushing box, a protective cover is arranged on one side of the crushing box, two first crushing rollers are symmetrically arranged in the crushing box, and a first motor for driving the first crushing rollers is arranged on the other side of the crushing box. Connecting pieces arranged in an array mode are arranged in the smashing box, a filter screen is connected between the connecting pieces in an inserted mode, a secondary smashing assembly capable of preventing blocking is arranged in the smashing box, the secondary smashing assembly comprises a driving smashing roller, a second smashing roller and a rotating rod, and the driving smashing roller and the second smashing roller are rotationally installed in the smashing box. And the driving crushing roller is fixedly connected with the output end of the second motor, a secondary crushing assembly used for driving is arranged on the other side of the crushing box, secondary crushing is conducted on broken stone through the secondary crushing assembly, meanwhile, a cam can be made to rotate, a filter screen can move up and down, and the situation that the filter screen is blocked, the filtering speed is influenced, and the crushing speed is influenced is avoided.

Description

Technical Field

[0001] The utility model relates to a rock crushing device used for rock excavation, belonging to the technical field of rock crushing devices. Background Art

[0002] Rocks are naturally produced minerals or glass aggregates with stable appearances, combined in a certain way. They are the material basis of the earth's crust and upper mantle. According to their genesis, they are divided into igneous rocks, sedimentary rocks and metamorphic rocks. Concrete components made in buildings mostly use rock particles as coarse aggregates, but the size of rocks when mined is large and cannot meet construction requirements, so these rocks need to be crushed to make gravel particles. With existing crushing devices, rock raw materials are not crushed thoroughly enough, and the filter screen is easily blocked during filtration, affecting the filtration speed. Utility Model Content

[0003] The purpose of the utility model is to provide a rock crushing device for rock excavation in order to solve the above-mentioned problem, which can crush rocks multiple times, prevent the filter screen from being blocked, and improve the filtration rate.

[0004] The utility model achieves the above-mentioned purpose through the following technical scheme: a rock crushing device for rock excavation, including a crushing box, a protective cover is provided on one side of the crushing box, two first crushing rollers are symmetrically arranged inside the crushing box, a first motor for driving the first crushing roller is provided on the other side of the crushing box, and the first crushing roller is driven to rotate by the rotation of the first motor, connecting parts arranged in an array are provided inside the crushing box, filters are inserted between the connecting parts, a secondary crushing assembly that can prevent blockage is provided inside the crushing box, and a second motor for driving the secondary crushing assembly is provided on the other side of the crushing box.

[0005] Preferably, in order to facilitate the driving of the active crushing roller to rotate, the secondary crushing assembly includes an active crushing roller, a second crushing roller and a rotating rod, the active crushing roller and the second crushing roller are rotatably installed inside the crushing box, and the active crushing roller is fixedly connected to the output end of the second motor, the rotating rod is rotatably installed inside the crushing box and is located between the connecting parts, the active crushing roller, the second crushing roller and the rotating rod are all located below the filter screen, and the active crushing roller is driven to rotate by the rotation of the second motor.

[0006] Preferably, in order to facilitate the linkage between the active crushing roller and the second crushing roller, sprockets are installed along the active crushing roller and the second crushing roller to one end of the crushing box, and a first chain is meshed between the sprockets. The sprocket and the first chain are located inside the protective cover. When the active crushing roller rotates, the sprocket rotates, and the second crushing roller rotates through the first chain.

[0007] Preferably, in order to facilitate the linkage between the active crushing roller and the rotating rod, a driving gear is provided at one end of the active crushing roller and located on one side of the sprocket, and a driven gear is provided at one end of the rotating rod extending to one side of the crushing box, and a second chain is meshed between the driven gear and the driving gear, and the driven gear, the driving gear and the second chain are located inside the protective cover, and the active crushing roller rotates, the driving gear rotates, and the driven gear rotates through the second chain, so that the rotating shaft rotating rod rotates.

[0008] Preferably, in order to facilitate driving the cam to rotate, two cams are installed on the rotating rod, and the cams rotate when the rotating rod rotates.

[0009] Preferably, in order to facilitate the flow of the initially crushed rocks between the active crushing roller and the first crushing roller, a guide plate is provided inside the crushing box and below the filter screen.

[0010] Preferably, in order to facilitate the secondary crushed rocks to fall into the discharge port under the action of gravity, a material smoothing table is provided inside the crushing box and below the active crushing roller and the second crushing roller.

[0011] Preferably, in order to facilitate adding the rocks to be crushed into the crushing box, a feed port is provided on the upper surface of the crushing box, and a discharge port is provided on one side of the crushing box.

[0012] The beneficial effects of the utility model are as follows: the secondary crushing assembly facilitates secondary crushing of crushed stone, so that the rock is crushed more thoroughly, and at the same time the cam can be rotated to move the filter screen up and down, thus avoiding clogging of the filter screen and affecting the feeding speed. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a cross-sectional schematic diagram of the utility model;

[0014] Figure 2 It is a structural schematic diagram of the utility model from the right side perspective;

[0015] Figure 3 It is a structural schematic diagram of the utility model from the left side perspective;

[0016] Figure 4 It is a structural schematic diagram of the secondary crushing component of the utility model.

[0017] In the figure: 1. crushing box; 2. protective cover; 3. first crushing roller; 4. first motor; 5. connecting piece; 6. filter screen; 7. secondary crushing assembly; 701. active crushing roller; 702. second crushing roller; 703. rotating rod; 704. sprocket; 705. first chain; 706. active gear; 707. driven gear; 708. second chain; 709. cam; 8. second motor; 9. guide plate; 10. material smoothing table; 11. feed inlet; 12. discharge outlet. DETAILED DESCRIPTION

[0018] 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.

[0019] See also Figure 1-Figure 4 As shown, a rock crushing device for rock excavation includes a crushing box 1, a protective cover 2 is provided on one side of the crushing box 1, two first crushing rollers 3 are symmetrically arranged inside the crushing box 1, and a first motor 4 for driving the first crushing roller 3 is provided on the other side of the crushing box 1. The first motor 4 rotates to drive the first crushing roller 3 to rotate, so as to facilitate the crushing of the rock, and the crushing box 1 is provided with connecting parts 5 arranged in an array, and filters 6 are inserted between the connecting parts 5. The crushing box 1 is provided with a secondary crushing component 7 that can prevent blockage, and the other side of the crushing box 1 is provided with a second motor 8 for driving the secondary crushing component 7. The secondary crushing component 7 is used to facilitate the secondary crushing of the rock, and the rock is crushed more thoroughly.

[0020] like Figure 4As shown, the secondary crushing assembly 7 includes an active crushing roller 701, a second crushing roller 702 and a rotating rod 703. The active crushing roller 701 and the second crushing roller 702 are rotatably installed inside the crushing box 1, and the active crushing roller 701 is fixedly connected to the output end of the second motor 8. The rotating rod 703 is rotatably installed inside the crushing box 1 and is located between the connecting members 5. The active crushing roller 701, the second crushing roller 702 and the rotating rod 703 are all located below the filter screen 6. The active crushing roller 701 is driven to rotate by the rotation of the second motor 8. The active crushing roller 701 and the second crushing roller 702 are installed with a sprocket 704 along one end of the crushing box 1. The first chain 705 is meshed between the sprockets 704. The sprockets 704 and the first chain 705 are located inside the protective cover 2. The active crushing roller 701 rotates, and the sprocket 70 4 rotates, and the second crushing roller 702 is rotated through the first chain 705. A driving gear 706 is provided at one end of the active crushing roller 701 and located on one side of the sprocket 704. A driven gear 707 is provided at one end of the rotating rod 703 extending to one side of the crushing box 1. A second chain 708 is meshed between the driven gear 707 and the driving gear 706. The driven gear 707, the driving gear 706 and the second chain 708 are located inside the protective cover 2. The active crushing roller 701 rotates, the driving gear 706 rotates, and the driven gear 707 rotates through the second chain 708, so that the rotating shaft rotating rod 703 rotates. Two cams 709 are installed on the rotating rod 703. When the rotating rod 703 rotates, the cam 709 rotates, so that the filter screen 6 moves up and down to avoid clogging of the filter screen 6 and affecting the filtering rate.

[0021] like Figure 1 As shown, a guide plate 9 is provided inside the crushing box 1 and below the filter screen 6, through which the initially crushed rocks can fall between the active crushing roller 701 and the second crushing roller 702. A material smoothing table 10 is provided inside the crushing box 1 and below the active crushing roller 701 and the second crushing roller 702. The material smoothing table 10 is at a certain angle so that the crushed rocks will fall into the discharge port 12 under the action of gravity. A feed port 11 is provided on the upper surface of the crushing box 1, through which the rocks to be crushed can be added to the crushing box 1. A discharge port 12 is provided on one side of the crushing box 1, through which the crushed rocks can be discharged from the crushing box 1.

[0022] When the utility model is in use, rocks are added to the crushing box 1 through the feed port 11, the first motor 4 is started to drive the first crushing roller 3 to rotate, the rocks are initially crushed, the initially crushed rocks are filtered through the filter screen 6, and the initially crushed rocks fall between the active crushing roller 701 and the second crushing roller 702 through the guide plate 9, and at the same time the second motor 8 is started, the active crushing roller 701 rotates, the sprocket 704 rotates, and the second crushing roller 702 rotates through the first chain 705, so that the initially crushed rocks are secondary crushed, making the crushing more thorough, the active gear 706 rotates, and the driven gear 707 rotates through the second chain 708, so that the rotating shaft rotating rod 703 rotates, and two cams 709 are installed on the rotating rod 703. By rotating the rotating rod 703, the cam 709 rotates, so that the filter screen 6 moves up and down, so as to avoid clogging of the filter screen 6 and affecting the filtering rate, and the material table 10 is at a certain angle, so that the crushed rocks will fall into the discharge port 12 under the action of gravity.

[0023] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

[0024] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A rock crushing device for rock excavation, comprising a crushing box (1), wherein a protective cover (2) is provided on one side of the crushing box (1), and wherein: Two first crushing rollers (3) are symmetrically arranged inside the crushing box (1), a first motor (4) for driving the first crushing rollers (3) is arranged on the other side of the crushing box (1), connecting members (5) arranged in an array are arranged inside the crushing box (1), and filters (6) are inserted between the connecting members (5), a secondary crushing component (7) that can prevent clogging is arranged inside the crushing box (1), and a second motor (8) for driving the secondary crushing component (7) is arranged on the other side of the crushing box (1).

2. The rock crushing device for rock excavation according to claim 1, characterized in that: The secondary crushing assembly (7) comprises an active crushing roller (701), a second crushing roller (702) and a rotating rod (703); the active crushing roller (701) and the second crushing roller (702) are rotatably mounted inside the crushing box (1); the active crushing roller (701) is fixedly connected to the output end of the second motor (8); the rotating rod (703) is rotatably mounted inside the crushing box (1) and is located between the connecting members (5); the active crushing roller (701), the second crushing roller (702) and the rotating rod (703) are all located below the filter screen (6).

3. The rock crushing device for rock excavation according to claim 2, characterized in that: The active crushing roller (701) and the second crushing roller (702) are provided with sprockets (704) along one end of the crushing box (1), a first chain (705) is meshed between the sprockets (704), and the sprockets (704) and the first chain (705) are located inside the protective cover (2).

4. The rock crushing device for rock excavation according to claim 3, characterized in that: A driving gear (706) is provided at one end of the active crushing roller (701) and located on one side of the sprocket wheel (704); a driven gear (707) is provided at one end of the rotating rod (703) extending to one side of the crushing box (1); a second chain (708) is meshed between the driven gear (707) and the driving gear (706); and the driven gear (707), the driving gear (706) and the second chain (708) are located inside the protective cover (2).

5. The rock crushing device for rock excavation according to claim 4, characterized in that: Two cams (709) are mounted on the rotating rod (703).

6. The rock crushing device for rock excavation according to claim 1, characterized in that: A material guide plate (9) is provided inside the crushing box (1) and below the filter screen (6).

7. The rock crushing device for rock excavation according to claim 2, characterized in that: A material unwinding table (10) is provided inside the pulverizing box (1) and below the active pulverizing roller (701) and the second pulverizing roller (702).

8. The rock crushing device for rock excavation according to claim 1, characterized in that: The upper surface of the pulverizing box (1) is provided with a feed inlet (11), and one side of the pulverizing box (1) is provided with a discharge outlet (12).

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