Stone crushing device for civil engineering

Abstract

The stone crushing device comprises a crushing box with an opening in the top, two rotating shafts are rotationally connected between the inner wall of the front side and the inner wall of the rear side of the crushing box, crushing rollers are fixedly arranged on the two rotating shafts in a sleeving mode, and a plurality of stone crushing sharp blocks are fixedly connected to the outer sides of the crushing rollers; and a shield is fixedly connected to the front side of the crushing box. By arranging a series of structures, stone crushing work can be conveniently carried out in civil engineering work, gravel blocks can be conveniently and automatically discharged in a sliding mode in the mode that the inner walls of the bottoms of the discharging hole, the crushing box and the discharging pipe are all inclined planes, electric power transmission and discharging equipment does not need to be additionally and independently arranged, the energy-saving performance is improved, and the cost is reduced. The upper portion can be covered, blocked and protected during stone breaking, the phenomenon that broken stone splashes outwards to hurt people is avoided, the use safety is improved, spraying and dust falling are conveniently conducted at the stone breaking position and the discharging position twice, dust suppression and dust falling work can be effectively conducted, and the situation that dust drifts outwards to harm the bodies of people is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of stone crushing equipment, in particular to a stone crushing device for civil engineering. Background Art

[0002] Civil engineering is a general term for the science and technology of building various land engineering facilities. It refers to the materials, equipment, survey, design, construction, maintenance, repair and other technical activities used, as well as the objects of engineering construction, that is, various engineering facilities built on the ground, underground or on land, directly or indirectly serving human life, production, military and scientific research, such as houses, roads, railways, pipelines, tunnels, bridges, canals, dams, ports, power stations, airports, offshore platforms, water supply and drainage, and protective engineering. Civil engineering refers to the various technical work such as survey, planning, design, construction, installation and maintenance for the construction, reconstruction or expansion of various types of engineering buildings, structures and related supporting facilities, in addition to housing construction, and the completed engineering entities; At present, when roads, railways and tunnels are newly built or rebuilt, a large amount of stones are usually used, and in order to facilitate use, the stones need to be crushed, and the general stone crushing device cannot handle the dust generated during crushing very well when in use, resulting in dust dispersion, affecting work and the health of workers.

[0003] In this regard, after searching, a Chinese patent, publication number CN216879560U discloses a stone crushing device for civil engineering, including a placing plate, a first supporting column is arranged on the surface of the placing plate, a crushing box is arranged at one end of the first supporting column, a first motor is arranged on one side of the crushing box, a driving shaft is arranged at the output end of the first motor, and a driving gear is arranged at one end of the driving shaft; the vacuum cleaner is operated, so that the powder produced by crushing the stone is sucked into the inside of the dust suction pipe through the dust suction head, and then transported to the inside of the dust suction box through the dust suction pipe for recovery, so as to avoid dust from floating into the air and affecting the surrounding working environment, and also to prevent operators from inhaling and protecting the health of the operators, and dust suction heads are arranged at both ends of the crushing box, so that the dust suction heads can absorb the dust produced during crushing and falling, thereby improving the effect of dust treatment and increasing the comprehensiveness of dust removal.

[0004] The above technology discloses a stone crushing device for civil engineering, which reduces the phenomenon of large amounts of dust floating outward by arranging a vacuum cleaner on the upper part for suction, but it has the following shortcomings: 1. It can only suck floating dust, but it is difficult to avoid the phenomenon of stone fragments splashing outward during the stone crushing work, and the stone fragments splashing outward are likely to cause harm to personnel, and the safety of use is not ideal; 2. The method of outputting the stone fragments separately through a conveyor belt device requires additional energy consumption, and the energy saving is not ideal; improvement is needed. In view of this, we propose a stone crushing device for civil engineering to solve the above problems. Utility Model Content

[0005] The purpose of the utility model is to provide a stone crushing device for civil engineering to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a stone crushing device for civil engineering, comprising a crushing box with an opening at the top, wherein two rotating shafts are rotatably connected between the front inner wall and the rear inner wall of the crushing box, and crushing rollers are fixedly sleeved on the two rotating shafts, and multiple stone crushing tips are fixedly connected to the outer sides of the crushing rollers, and a guard shield is fixedly connected to the front side of the crushing box, and the front ends of the two rotating shafts extend into the guard shield and are fixedly connected to gears, and the two gears are meshed, and an output shaft is fixedly installed on the front side of the guard shield and a driving motor is fixedly connected to the front side of the gear on the left side, and a conical guide hopper is fixedly installed in the crushing box, and the bottom of the conical guide hopper is located in the middle and upper part of the two crushing rollers, and the driving motor is used to drive the two rotating shafts and the two crushing rollers to rotate relative to each other through the two gears, and the two crushing rollers are used to drive the multiple stone crushing tips to rotate relative to each other, and the rotation of the multiple stone crushing tips is used to crush stones in civil engineering work;

[0007] A discharge hole is provided on the left inner wall of the crushing box, a discharge pipe connected with the discharge hole is fixedly installed on the left bottom of the crushing box, the bottom inner wall of the discharge pipe is set to an inclined surface, a water tank is fixedly installed on the left top of the discharge pipe, a quick-opening shielding spray dust suppression assembly that is in active contact with the top of the crushing box is installed on the top of the water tank, a first spray dust suppression assembly is fixedly connected to the top inner wall of the discharge pipe, a two-way water supply assembly is fixedly installed on the top of the water tank, the top and bottom ends of the two-way water supply assembly are respectively connected and fixed to the quick-opening shielding spray dust suppression assembly and the first spray dust suppression assembly, the two-way water supply assembly is used to supply water to the quick-opening shielding spray dust suppression assembly and the first spray dust suppression assembly, the quick-opening shielding spray dust suppression assembly is used to shield the top of the crushing box to prevent gravel from splashing and to spray dust into it, and the first spray dust suppression assembly is used to perform secondary spray dust suppression on gravel discharged through the discharge pipe.

[0008] Preferably, the quick-opening shielding spray dust reduction assembly includes two support rods fixedly connected to the top of the water tank, a hollow cover plate is rotatably connected between the two support rods, the bottom of the hollow cover plate is in movable contact with the top of the crushing box, the bottom inner wall of the hollow cover plate is connected and fixed with a plurality of first atomizing nozzles located in the crushing box, and a tilted electric telescopic rod is hinged between the top of the water tank and the bottom left side of the cover plate; the hollow cover plate, the support rod, the first atomizing nozzle and the electric telescopic rod are arranged to cooperate, and the electric telescopic rod is used to drive the hollow cover plate to rotate upward to open or downward to close, so as to achieve a convenient quick opening and closing effect, and the hollow cover plate can be used to prevent the broken stones from splashing outward and injuring people when breaking stones, and when water is supplied to the inside of the hollow cover plate, the water is sprayed downward through a plurality of first atomizing nozzles to perform dust reduction work.

[0009] Preferably, the first spray dust reduction component includes a transverse tube fixedly mounted on the top inner wall of the discharge pipe, both ends of the transverse tube are arranged as blocking structures, and the bottom of the transverse tube is connected and fixed with a plurality of second atomizing nozzles; the transverse tube and the second atomizing nozzles cooperate with each other, and when water is supplied into the transverse tube, the water is sprayed downward through the plurality of second atomizing nozzles to perform secondary spray dust reduction on the discharged gravel.

[0010] Preferably, the two-way water supply component includes a water pump fixedly installed on the right side of the top of the water tank, the water inlet end of the water pump extends into the water tank and is connected and fixed with a suction pipe, the water outlet of the water pump is connected and fixed with a vertical pipe, the bottom end of the vertical pipe extends into the discharge pipe and is connected and fixed with the top of the horizontal pipe, and the top of the vertical pipe is connected and fixed with the same hose between the bottom inner wall of the hollow cover plate; the water pump, suction pipe, vertical pipe and hose are arranged in cooperation, and the water pump is used to draw water in the water tank through the suction pipe and pump it into the vertical pipe, part of the water is supplied downward into the horizontal pipe, and the other part of the water is supplied upward into the hollow cover plate through the hose.

[0011] Preferably, the bottom inner wall of the crushing box is arranged as an inclined surface, and the lower position of the left side of the inclined surface is flush with the bottom inner wall of the discharge hole.

[0012] Preferably, a water filling pipe is connected and fixed to the left side of the top of the water tank.

[0013] Preferably, four corners of the bottom of the crushing box are fixedly connected with supporting legs.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] 1. This stone crushing device for civil engineering can crush stones in civil engineering work by cooperating with the crushing box, driving motor, shield, gear, rotating shaft and crushing roller. When the driving motor is started, the stone crushing device can crush stones in civil engineering work. With the discharge hole and the inner wall of the bottom of the crushing box and the discharge pipe being inclined, the crushed stones can be discharged by sliding conveniently, without the need to set up a separate power transmission and discharge device, thereby improving energy saving.

[0016] 2. This stone crushing device for civil engineering can be opened and closed quickly and conveniently on the top of the crushing box through the quick-opening shielding spray dust reduction component, and can cover and block the upper part during stone crushing to prevent the phenomenon of stone splashing outwards and injuring people, thereby improving the safety of use;

[0017] 3. This stone crushing device for civil engineering, through the cooperation of the quick-opening shielding spray dust suppression component, the first spray dust suppression component, the water tank and the two-way water supply component, can carry out spray dust suppression twice at the stone crushing place and the discharge place during the stone crushing work, can effectively carry out dust suppression work, avoid dust from scattering outwards and endangering people's health, and is highly environmentally friendly.

[0018] The utility model discloses the ... BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a three-dimensional structural schematic diagram of a stone crushing device for civil engineering proposed by the utility model;

[0020] Figure 2 This is a schematic diagram of the cross-sectional structure of the main view of a stone crushing device for civil engineering proposed by the utility model;

[0021] Figure 3 For this utility model Figure 2 Schematic diagram of the cross-sectional structure.

[0022] In the figure: 1. crushing box; 2. rotating shaft; 3. crushing roller; 4. protective cover; 5. gear; 6. driving motor; 7. conical guide hopper; 8. discharge hole; 9. discharge pipe; 10. horizontal pipe; 11. second atomizing nozzle; 12. water tank; 13. cover plate; 14. first atomizing nozzle; 15. support rod; 16. water pump; 17. hose; 18. vertical pipe; 19. electric telescopic rod. DETAILED DESCRIPTION

[0023] 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.

[0024] like Figures 1 to 3 As shown, a stone crushing device for civil engineering proposed in this embodiment includes a crushing box 1 with an opening at the top, and legs are fixedly connected to the four corners of the bottom of the crushing box 1 to support the crushing box 1 at the bottom. Two rotating shafts 2 are rotatably connected between the front inner wall and the rear inner wall of the crushing box 1, and crushing rollers 3 are fixedly sleeved on the two rotating shafts 2. A plurality of crushing tips are fixedly connected to the outer side of the crushing rollers 3, and a guard shield 4 is fixedly connected to the front side of the crushing box 1. The front ends of the two rotating shafts 2 extend into the guard shield 4 and are fixed A gear 5 is connected, and the two gears 5 are meshed. A driving motor 6 whose output shaft is fixedly installed on the front side of the guard 4 and is fixedly connected to the front side of the left gear 5, and a conical guide hopper 7 is fixedly installed in the crushing box 1. The bottom of the conical guide hopper 7 is located in the middle and upper part of the two crushing rollers 3. The driving motor 6 drives the two rotating shafts 2 and the two crushing rollers 3 to rotate relative to each other through the two gears 5, and the two crushing rollers 3 drive the multiple crushed stone tips to rotate relative to each other. In civil engineering work, the rotation of the multiple crushed stone tips is used to crush stones;

[0025] A discharge hole 8 is provided on the left inner wall of the crushing box 1, and the bottom inner wall of the crushing box 1 is set as an inclined surface. The lower position on the left side of the inclined surface is flush with the bottom inner wall of the discharge hole 8. By setting it as an inclined surface, it is convenient for the crushed stones to slide down. A discharge pipe 9 connected to the discharge hole 8 is fixedly installed at the bottom of the left side of the crushing box 1. The bottom inner wall of the discharge pipe 9 is set as an inclined surface. A water tank 12 is fixedly installed on the left side of the top of the discharge pipe 9. A water filling pipe is fixedly connected to the left side of the top of the water tank 12. The water filling pipe is used to add water to the inside of the water tank 12. The top of the water tank 12 is equipped with a movable A dynamic contact quick-opening shielding spray dust suppression component, a first spray dust suppression component is fixedly connected to the top inner wall of the discharge pipe 9, a two-way water supply component is fixedly installed on the top of the water tank 12, the top and bottom ends of the two-way water supply component are respectively connected and fixed to the quick-opening shielding spray dust suppression component and the first spray dust suppression component, the two-way water supply component is used to supply water to the quick-opening shielding spray dust suppression component and the first spray dust suppression component, the quick-opening shielding spray dust suppression component is used to shield the top of the crushing box 1 to prevent gravel from splashing and to spray dust into it, and the first spray dust suppression component is used to perform secondary spray dust suppression on the gravel discharged through the discharge pipe 9.

[0026] Specifically, the quick-opening shielding spray dust suppression component includes two support rods 15 fixedly connected to the top of the water tank 12, and the same hollow cover plate 13 is rotatably connected between the two support rods 15, wherein the same support shaft is fixedly connected between the two support rods 15, and a rotation hole is opened on the front side of the hollow cover plate 13, and two bearings are fixedly sleeved in the rotation hole, and the inner ring of the bearing is fixedly sleeved with the outer side of the support shaft, so as to achieve the effect of rotatably installing the hollow cover plate 13, and the bottom of the hollow cover plate 13 is in active contact with the top of the crushing box 1, and the bottom inner wall of the hollow cover plate 13 is connected and fixed with a plurality of 1, a first atomizing nozzle 14 in the water tank 12, a top of the water tank 12 and the bottom left side of the cover plate 13 are hinged with an electric telescopic rod 19 which is arranged obliquely; the hollow cover plate 13, the support rod 15, the first atomizing nozzle 14 and the electric telescopic rod 19 are arranged to cooperate, and the electric telescopic rod 19 is used to drive the hollow cover plate 13 to rotate upward to open or downward to close, so as to achieve a convenient quick opening and closing effect. The hollow cover plate 13 can be used to prevent the broken stones from splashing outward to injure people when breaking stones. When water is supplied into the hollow cover plate 13, the water is sprayed downward through the multiple first atomizing nozzles 14 to perform dust reduction work.

[0027] Furthermore, the first spray dust reduction component includes a transverse pipe 10 fixedly mounted on the top inner wall of the discharge pipe 9, both ends of the transverse pipe 10 are arranged as blocking structures, and the bottom of the transverse pipe 10 is connected and fixed with a plurality of second atomizing nozzles 11; the transverse pipe 10 and the second atomizing nozzles 11 cooperate with each other, and when water is supplied into the transverse pipe 10, the water is sprayed downward through the plurality of second atomizing nozzles 11 to perform secondary spray dust reduction on the discharged gravel.

[0028] Furthermore, the two-way water supply component includes a water pump 16 fixedly installed on the top right side of the water tank 12, the water inlet end of the water pump 16 extends into the water tank 12 and is connected and fixed with a suction pipe, the water outlet of the water pump 16 is connected and fixed with a vertical pipe 18, the bottom end of the vertical pipe 18 extends into the discharge pipe 9 and is connected and fixed with the top of the transverse pipe 10, wherein a movable through-hole for the vertical pipe 18 to move through is provided on the top inner wall of the discharge pipe 9, and a hose 17 is connected and fixed between the top of the vertical pipe 18 and the bottom inner wall of the hollow cover plate 13; the water pump 16, suction pipe, vertical pipe 18 and hose 17 are arranged to cooperate, and the water pump 16 is used to draw water from the water tank 12 through the suction pipe and pump it into the vertical pipe 18, part of the water is supplied downward into the transverse pipe 10, and the other part of the water is supplied upward into the hollow cover plate 13 through the hose 17.

[0029] The method of using the present embodiment is as follows: when crushing stones in civil engineering work, firstly, the electric telescopic rod 19 is started in the reverse direction to pull the hollow cover plate 13 to rotate upward and open, thereby removing the shielding on the upper part of the crushing box 1, and the stones to be crushed are poured into the crushing box 1, and the electric telescopic rod 19 is started in the forward direction to drive the hollow cover plate 13 to rotate downward and close to the top of the crushing box 1 to perform shielding work, and the drive motor 6 and the water pump 16 are started. When the drive motor 6 is started, the gear 5 on the left side is driven to rotate, and the gear 5 on the left side drives the gear 5 on the right side to rotate relative to it, and the two gears 5 drive the two crushing rollers 3 to rotate relative to each other, and the two crushing rollers 3 drives multiple stone crushing tips to rotate relatively, crushing the stones. After the stones are crushed, they fall down onto the bottom inner wall of the crushing box 1. Since the bottom inner wall is an inclined surface, the crushed stones automatically slide to the left through the inclined surface into the discharge hole 8, and then slide to the left through the discharge pipe 9 whose bottom inner wall is an inclined surface. By covering and protecting the upper part during stone crushing, it is possible to avoid the phenomenon of crushed stones splashing outwards and injuring people, thereby improving the safety of use. By setting the bottom inner walls of the crushing box 1 and the discharge pipe 9 as inclined surfaces, it is convenient for the crushed stones to slide and discharge themselves, without the need to set up a separate power transmission and discharge device, thereby improving energy saving.

[0030] When the water pump 16 is started, water in the water tank 12 is drawn through the suction pipe and pumped into the vertical pipe 18. Part of the water is supplied downward into the horizontal pipe 10, and the other part of the water is supplied upward into the hollow cover plate 13 through the hose 17. The water entering the hollow cover plate 13 is sprayed downward through multiple first atomizing nozzles 14 to spray and reduce dust at the gravel position. The water entering the horizontal pipe 10 is sprayed downward through multiple second atomizing nozzles 11 to perform secondary spray and dust reduction on the discharged gravel. By spraying and reducing dust twice at the gravel crushing position and the discharge position, dust suppression and dust reduction work can be effectively carried out to prevent dust from scattering outward and endangering people's bodies, and it is highly environmentally friendly.

[0031] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein with equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A stone crushing device for civil engineering, comprising a crushing box (1) with an opening at the top, characterized in that: Two rotating shafts (2) are rotatably connected between the front inner wall and the rear inner wall of the crushing box (1), and crushing rollers (3) are fixedly sleeved on the two rotating shafts (2). A plurality of crushed stone tips are fixedly connected to the outer side of the crushing rollers (3). A guard shield (4) is fixedly connected to the front side of the crushing box (1). The front ends of the two rotating shafts (2) extend into the guard shield (4) and are fixedly connected to gears (5). The two gears (5) are meshed with each other. A driving motor (6) whose output shaft is fixedly installed on the front side of the guard shield (4) and is fixedly connected to the front side of the gear (5) on the left side. A conical guide hopper (7) is fixedly installed in the crushing box (1), and the bottom of the conical guide hopper (7) is located in the middle and upper part of the two crushing rollers (3). A discharge hole (8) is provided on the left inner wall of the crushing box (1); a discharge pipe (9) connected to the discharge hole (8) is fixedly installed on the left bottom of the crushing box (1); the bottom inner wall of the discharge pipe (9) is arranged as an inclined surface; a water tank (12) is fixedly installed on the left side of the top of the discharge pipe (9); a quick-opening shielding spray dust suppression component that is in active contact with the top of the crushing box (1) is installed on the top of the water tank (12); a first spray dust suppression component is fixedly connected to the top inner wall of the discharge pipe (9); a two-way water supply component is fixedly installed on the top of the water tank (12); the top and bottom ends of the two-way water supply component are respectively connected to and fixed to the quick-opening shielding spray dust suppression component and the first spray dust suppression component.

2. A stone crushing device for civil engineering according to claim 1, characterized in that: The quick-open shielding spray dust suppression assembly comprises two support rods (15) fixedly connected to the top of a water tank (12); a hollow cover plate (13) is rotatably connected between the two support rods (15); the bottom of the hollow cover plate (13) is in active contact with the top of a crushing box (1); a plurality of first atomizing nozzles (14) located in the crushing box (1) are connected and fixed to the inner wall of the bottom of the hollow cover plate (13); and a tilted electric telescopic rod (19) is hingedly connected between the top of the water tank (12) and the left side of the bottom of the cover plate (13).

3. A stone crushing device for civil engineering according to claim 2, characterized in that: The first spray dust suppression component comprises a transverse pipe (10) fixedly mounted on the top inner wall of a discharge pipe (9), both ends of the transverse pipe (10) being arranged as blocking structures, and a plurality of second atomizing nozzles (11) are connected and fixedly mounted at the bottom of the transverse pipe (10).

4. The stone crushing device for civil engineering according to claim 3, characterized in that: The two-way water supply assembly comprises a water pump (16) fixedly mounted on the right side of the top of the water tank (12); the water inlet end of the water pump (16) extends into the water tank (12) and is connected and fixed with a water suction pipe; the water outlet of the water pump (16) is connected and fixed with a vertical pipe (18); the bottom end of the vertical pipe (18) extends into the discharge pipe (9) and is connected and fixed with the top of the horizontal pipe (10); the top end of the vertical pipe (18) is connected and fixed with the bottom inner wall of the hollow cover plate (13) by a same hose (17).

5. The stone crushing device for civil engineering according to claim 1, characterized in that: The bottom inner wall of the crushing box (1) is arranged as an inclined surface, and the lower position on the left side of the inclined surface is flush with the bottom inner wall of the discharge hole (8).

6. The stone crushing device for civil engineering according to claim 1, characterized in that: The left side of the top of the water tank (12) is connected and fixed with a water supply pipe.

7. The stone crushing device for civil engineering according to claim 2, characterized in that: The four corners of the bottom of the crushing box (1) are all fixedly connected with supporting legs.

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