A stone crushing device

Abstract

The utility model provides a stone crushing device, which relates to the technical field of civil engineering machinery. The stone crushing device comprises a first stone crushing bin and a second stone crushing bin arranged at the discharge port of the first stone crushing bin, a screening mechanism is installed between the discharge end of the first stone crushing bin and the feed end of the second stone crushing bin, and a driving mechanism is installed at the front wall surface of the first stone crushing bin and the second stone crushing bin. The utility model performs preliminary crushing of stone materials through the first stone crushing bin. Although the gap between the plate hammer and the lining plate in the first stone crushing bin is larger than the required stone particle size, there are still stones whose particle size reaches the required stone particle size during the crushing process. By adjusting the screening mechanism, a plurality of screening rods are combined in the inner cavity of the screening bin to form a screen with a suitable aperture, and the stones with the particle size meeting the requirements are screened out and flow out through the bottom surface of the screening bin to avoid excessive crushing in the second stone crushing bin, thereby reducing the proportion of excessively crushed stones in the overall stone materials, improving the utilization rate of the stone materials, and accelerating the production.

Description

Technical Field

[0001] The utility model belongs to the technical field of civil engineering machinery, and more specifically, particularly relates to a stone crushing device. 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 used, and the technical activities such as survey, design, construction, maintenance, and repair carried out, 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, etc. 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;

[0003] At present, a large amount of stone is usually used in the construction and reconstruction of roads, railways and tunnels. The particle size of these stones has certain specifications in different application scenarios. For the convenience of use, the stones need to be crushed into particles of similar size. The existing technology mainly uses impact crushers, which have uniform particle size of crushed stones and high crushing efficiency. The gap between the plate hammer and the liner can be quickly adjusted according to the required particle size of the stone, so as to produce stones of suitable particle size. However, it is found in the process of use that the smaller the crushing particle size, the lower the production efficiency will be, and the smaller the particle size, the easier it is to over-crush. The particle size of the stone after over-crushing is smaller than the required particle size of the stone, and it needs to be screened out for other uses.

[0004] Therefore, in view of this, the existing structure and defects are studied and improved, and a stone crushing device is provided to achieve the purpose of having more practical value. Utility Model Content

[0005] In order to solve the above technical problems, the utility model provides a stone crushing device to solve the above problems.

[0006] The purpose and effect of the stone crushing device of the utility model are achieved by the following specific technical means:

[0007] A stone crushing device comprises a first stone crushing bin and a second stone crushing bin arranged at the discharge port of the first stone crushing bin, a screening mechanism is installed between the discharge end of the first stone crushing bin and the feed end of the second stone crushing bin, and a driving mechanism is installed on the front wall surface of the first stone crushing bin and the second stone crushing bin.

[0008] Furthermore, a plate hammer is installed in the inner cavity of the first crushing bin and the second crushing bin, and a plurality of lining plates used in conjunction with the plate hammer are hingedly provided on one side of the first crushing bin, and a plurality of first electric hydraulic telescopic rods used in conjunction with the lining plates are installed on the outer wall surface of the first crushing bin, and the telescopic end of the first electric hydraulic telescopic rod is hingedly arranged with the middle part of the back side of the lining plate.

[0009] Furthermore, the driving mechanism includes a motor fixedly mounted on the right outer wall surface of the first crushing bin, a driving pulley is installed on the rotating end of the motor, a first driven pulley is fixedly mounted on the middle part of the front end of the plate hammer in the first crushing bin, and a first transmission belt is installed between the first driven pulley and the driving pulley.

[0010] Furthermore, the driving mechanism also includes a second driven pulley installed in the middle of the front wall surface of the first driven pulley, and a third driven pulley is fixedly installed on the middle of the front end of the plate hammer in the second crushing bin through the outer wall surface of the second crushing bin, and a second transmission belt is installed between the third driven pulley and the second driven pulley.

[0011] Furthermore, the screening mechanism includes a screening bin installed between the first crushed stone bin discharge port and the second crushed stone bin feed port, guide plates are provided in the middle of the left side wall and the middle of the front side wall of the screening bin, and a plurality of even-numbered guide grooves are opened on the upper wall of the guide plate.

[0012] Furthermore, an even number of the guide grooves are opened obliquely, and an even number of the guide grooves are opened in a mirror image with the middle of the guide plate as the center line.

[0013] Furthermore, a limit slider is slidably provided in the guide groove, a screening rod is fixedly installed on the upper end of the limit slider, the bottom surface of the screening rod is in contact with the top surface of the guide plate, a limit hole is provided in the middle of the front side wall of the screening rod, a limit rod is passed through the limit hole, both ends of the limit rod are fixedly connected to the screening bin, one end of the screening rod passes through the inner cavity of the screening bin, and a receiving groove is provided on the inner cavity wall of the screening bin for matching the sliding of the end of the screening rod.

[0014] Furthermore, the screening mechanism also includes a T-shaped block installed in the middle of one side of the bottom surface of the guide plate and a second electric hydraulic telescopic rod installed in the middle of the left wall and the middle of the front wall of the screening bin, the telescopic end of the second electric hydraulic telescopic rod is fixedly connected to the middle of the right wall of the T-shaped block, two L-shaped guide rods are symmetrically installed in the middle of the left wall and the middle of the front wall of the screening bin, and a limiting slide groove is provided in the middle of the front and rear side walls of the guide plate for use with the left end of the L-shaped guide rod.

[0015] Furthermore, the guide plate at the left side wall of the screening bin is inclined with the left side higher and the right side lower, and the bottom surface of the screening rod at the front outer wall of the screening bin is fitted with the top surface of the screening rod on the guide plate at the left side wall of the screening bin.

[0016] Compared with the prior art, the utility model has the following beneficial effects:

[0017] 1. The utility model adjusts the liner in the first crushing bin through the first electric hydraulic telescopic rod on the first crushing bin, so that the gap between the liner and the plate hammer is larger than the required stone particle size, thereby accelerating the crushing speed and reducing excessive crushing of the stone in the first crushing bin.

[0018] 2. In the utility model, although the gap between the plate hammer and the lining plate in the first crushing bin is larger than the required stone size, there is still stone whose particle size reaches the required stone size during the crushing process, and then the screening mechanism is adjusted so that a plurality of screening rods are combined in the inner cavity of the screening bin to form a screen with a suitable aperture, and then the stone with the required particle size is screened out and flows out through the bottom surface of the screening bin to avoid excessive crushing in the second crushing bin, thereby reducing the proportion of excessively crushed stone in the overall stone, improving the utilization rate of stone, and speeding up production. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0020] Figure 2 It is a schematic diagram of the driving mechanism of the utility model.

[0021] Figure 3 It is a cross-sectional view of the utility model.

[0022] Figure 4 It is a sectional view of the screening bin of the utility model.

[0023] Figure 5 It is a schematic diagram of the expansion of the screening mechanism of the utility model.

[0024] In the figure, the corresponding relationship between the component names and the figure numbers is as follows:

[0025] 1. First crushing bin; 2. Screening mechanism; 3. Second crushing bin; 4. Driving mechanism; 5. Plate hammer; 6. Lining plate; 7. First electric hydraulic telescopic rod; 201. Screening bin; 202. Guide plate; 203. Guide groove; 204. Limiting slider; 205. Screening rod; 206. Limiting hole; 207. Limiting rod; 208. T-shaped block; 209. Second electric hydraulic telescopic rod; 210. Limiting slide groove; 211. L-shaped guide rod; 401. Motor; 402. Driving pulley; 403. First driven pulley; 404. Second driven pulley; 405. First transmission belt; 406. Third driven pulley; 407. Second transmission belt. DETAILED DESCRIPTION

[0026] The following is a further detailed description of the implementation of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but cannot be used to limit the scope of the present invention.

[0027] In the description of the present invention, unless otherwise specified, "multiple" means two or more; the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", "third" and the like are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0028] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0029] Example:

[0030] As attached Figure 1 To Attachment Figure 5 As shown: a stone crushing device includes a first stone crushing bin 1 and a second stone crushing bin 3 arranged at the discharge port of the first stone crushing bin 1, a screening mechanism 2 is installed between the discharge end of the first stone crushing bin 1 and the feed end of the second stone crushing bin 3, and a driving mechanism 4 is installed on the front wall surface of the first stone crushing bin 1 and the second stone crushing bin 3.

[0031] As attached Figure 1 To Attachment Figure 5 As shown, in some embodiments, a plate hammer 5 is installed in the inner cavity of the first crushing bin 1 and the second crushing bin 3, and a plurality of lining plates 6 for cooperating with the plate hammer 5 are hingedly provided on one side of the first crushing bin 1, and a plurality of first electric hydraulic telescopic rods 7 for cooperating with the lining plates 6 are installed on the outer wall of the first crushing bin 1, and the telescopic end of the first electric hydraulic telescopic rod 7 is hingedly provided with the middle part of the back side of the lining plate 6.

[0032] As attached Figure 1 To Attachment Figure 5 As shown, in some embodiments, the driving mechanism 4 includes a motor 401 fixedly mounted on the right outer wall of the first crushing bin 1, a driving pulley 402 is installed at the rotating end of the motor 401, a first driven pulley 403 is fixedly mounted at the middle of the front end of the plate hammer 5 in the first crushing bin 1 through the outer wall of the first crushing bin 1, and a first transmission belt 405 is installed between the first driven pulley 403 and the driving pulley 402.

[0033] As attached Figure 1 To Attachment Figure 5 As shown, in some embodiments, the driving mechanism 4 also includes a second driven pulley 404 installed in the middle of the front wall of the first driven pulley 403, and a third driven pulley 406 is fixedly installed on the middle of the front end of the plate hammer 5 in the second crushing bin 3 through the outer wall of the second crushing bin 3, and a second transmission belt 407 is installed between the third driven pulley 406 and the second driven pulley 404.

[0034] As attached Figure 1 To Attachment Figure 5 As shown, in some embodiments, the screening mechanism 2 includes a screening bin 201 installed between the discharge port of the first crushing bin 1 and the feed port of the second crushing bin 3, and a guide plate 202 is provided in the middle of the left side wall and the middle of the front side wall of the screening bin 201, and a plurality of even-numbered guide grooves 203 are opened on the upper wall of the guide plate 202.

[0035] As attached Figure 1 To Attachment Figure 5 As shown, in some embodiments, a plurality of even-numbered guide grooves 203 are opened obliquely, and a plurality of even-numbered guide grooves 203 are opened in a mirror image with the middle of the guide plate 202 as the center line.

[0036] As attached Figure 1 To Attachment Figure 5As shown, in some embodiments, a limit slider 204 is slidably provided in the guide groove 203, and a screening rod 205 is fixedly installed on the upper end of the limit slider 204. The bottom surface of the screening rod 205 is in contact with the top surface of the guide plate 202, and a limit hole 206 is provided in the middle of the front side wall of the screening rod 205. A limit rod 207 is passed through the limit hole 206, and both ends of the limit rod 207 are fixedly connected to the screening bin 201. One end of the screening rod 205 passes through the inner cavity of the screening bin 201, and a receiving groove matching the sliding end of the screening rod 205 is provided on the inner cavity wall of the screening bin 201.

[0037] As attached Figure 1 To Attachment Figure 5 As shown, in some embodiments, the screening mechanism 2 also includes a T-shaped block 208 installed in the middle of one side of the bottom surface of the guide plate 202 and a second electric hydraulic telescopic rod 209 installed in the middle of the left side wall and the middle of the front side wall of the screening bin 201, the telescopic end of the second electric hydraulic telescopic rod 209 is fixedly connected to the middle of the right side wall of the T-shaped block 208, two L-shaped guide rods 211 are symmetrically installed in the middle of the left side wall and the middle of the front side wall of the screening bin 201, and a limiting slide groove 210 is provided in the middle of the front and rear side walls of the guide plate 202 for use with the left end of the L-shaped guide rod 211.

[0038] As attached Figure 1 To Attachment Figure 5 As shown, in some embodiments, the guide plate 202 at the left side wall of the screening bin 201 is inclined with the left side higher and the right side lower, and the bottom surface of the screening rod 205 at the front outer wall of the screening bin 201 is in contact with the top surface of the screening rod 205 on the guide plate 202 at the left side wall of the screening bin 201.

[0039] The specific use and function of this embodiment are as follows: firstly, the liner 6 in the first crushing bin 1 is adjusted by the first electric hydraulic telescopic rod 7 on the first crushing bin 1, so that the gap between the liner 6 and the plate hammer 5 is larger than the required stone particle size, firstly, to speed up the crushing speed, and secondly, to reduce the excessive crushing of the stone in the first crushing bin 1. Although the gap between the plate hammer 5 and the liner 6 in the first crushing bin 1 is larger than the required stone particle size, there are still stones with particle sizes reaching the required stone particle size during the crushing process;

[0040] By simultaneously driving the second electric hydraulic telescopic rod 209 installed on the outer wall surface of the front side of the screening bin 201 and the second electric hydraulic telescopic rod 209 installed on the outer wall surface of the left side of the screening bin 201, the T-shaped block 208 at the telescopic end of the second electric hydraulic telescopic rod 209 drives the guide plate 202 to slide. During the sliding process of the guide plate 202, the limit slider 204 located in the guide groove 203 moves along the opening direction of the guide groove 203, thereby changing the spacing between the plurality of screening rods 205, and then the outer wall surface of the front side of the screening bin 201 is adjusted. The plurality of screening rods 205 on the upper surface and the plurality of screening rods 205 on the left outer wall of the screening bin 201 are combined in the inner cavity of the screening bin 201 to form a screen with a suitable aperture, thereby screening out stones with the required particle size and allowing them to flow out through the bottom surface of the screening bin 201. At this time, the stones on the screen roll along the inclined surface of the screen into the second stone crushing bin 3, and then the lining plate 6 and the plate hammer 5 in the second stone crushing bin 3 are adjusted so that the gap between them is a gap that can produce the required stone particle size, thereby accelerating the crushing speed while reducing excessive crushing of the stone.

[0041] The embodiments of the present invention are provided for the purpose of illustration and description, and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments are selected and described to better illustrate the principles and practical applications of the present invention, and to enable those of ordinary skill in the art to understand the present invention and thereby design various embodiments with various modifications suitable for specific purposes.

Claims

1. A stone crushing device, comprising a first stone crushing bin (1) and a second stone crushing bin (3) arranged at the discharge port of the first stone crushing bin (1), characterized in that: A screening mechanism (2) is installed between the discharge end of the first crushing bin (1) and the feed end of the second crushing bin (3); a driving mechanism (4) is installed on the front wall surface of the first crushing bin (1) and the second crushing bin (3); a plate hammer (5) is installed in the inner cavity of the first crushing bin (1) and the second crushing bin (3); a plurality of lining plates (6) for use with the plate hammer (5) are hingedly provided on one side of the first crushing bin (1); a plurality of first electric hydraulic telescopic rods (7) for use with the lining plates (6) are installed on the outer wall surface of the first crushing bin (1); and the telescopic end of the first electric hydraulic telescopic rod (7) is hingedly provided with the middle part of the back side of the lining plate (6).

2. A stone crushing device as claimed in claim 1, characterized in that: The driving mechanism (4) comprises a motor (401) fixedly mounted on the right outer wall of the first crushing bin (1); a driving pulley (402) is mounted on the rotating end of the motor (401); a first driven pulley (403) is fixedly mounted on the middle part of the front end of the plate hammer (5) in the first crushing bin (1) and penetrates through the outer wall of the first crushing bin (1); a first transmission belt (405) is mounted between the first driven pulley (403) and the driving pulley (402).

3. A stone crushing device as claimed in claim 2, characterized in that: The driving mechanism (4) further comprises a second driven pulley (404) mounted in the middle of the front wall surface of the first driven pulley (403); a third driven pulley (406) is fixedly mounted in the middle of the front end of the plate hammer (5) in the second crushing bin (3) and passes through the outer wall surface of the second crushing bin (3); a second transmission belt (407) is mounted between the third driven pulley (406) and the second driven pulley (404).

4. A stone crushing device as claimed in claim 3, characterized in that: The screening mechanism (2) comprises a screening bin (201) installed between a discharge port of a first crushed stone bin (1) and a feed port of a second crushed stone bin (3), a guide plate (202) is provided in the middle of a left side wall and a middle of a front side wall of the screening bin (201), and a plurality of even-numbered guide grooves (203) are provided on an upper wall of the guide plate (202).

5. A stone crushing device as claimed in claim 4, characterized in that: An even number of the guide grooves (203) are opened obliquely, and an even number of the guide grooves (203) are opened in a mirror image with the middle of the guide plate (202) as the center line.

6. A stone crushing device as claimed in claim 5, characterized in that: A limit slider (204) is slidably arranged in the guide groove (203), a screening rod (205) is fixedly mounted on the upper end of the limit slider (204), the bottom surface of the screening rod (205) is in contact with the top surface of the guide plate (202), a limit hole (206) is arranged in the middle of the front side wall surface of the screening rod (205), a limit rod (207) is inserted in the limit hole (206), both ends of the limit rod (207) are fixedly connected to the screening bin (201), one end of the screening rod (205) passes through the inner cavity of the screening bin (201), and a receiving groove matching the sliding end of the screening rod (205) is arranged on the inner cavity wall surface of the screening bin (201).

7. A lithotripsy device as claimed in claim 6, characterized in that: The screening mechanism (2) further comprises a T-shaped block (208) mounted in the middle of one side of the bottom surface of the guide plate (202) and a second electric hydraulic telescopic rod (209) mounted in the middle of the left side wall and the middle of the front side wall of the screening bin (201), the telescopic end of the second electric hydraulic telescopic rod (209) being fixedly connected to the middle of the right side wall of the T-shaped block (208), two L-shaped guide rods (211) being symmetrically mounted in the middle of the left side wall and the middle of the front side wall of the screening bin (201), and a limiting slide groove (210) for matching the left end of the L-shaped guide rod (211) is provided in the middle of the front and rear side walls of the guide plate (202).

8. A stone crushing device as claimed in claim 7, characterized in that: The guide plate (202) on the left side wall of the screening bin (201) is arranged to be inclined with the left side higher and the right side lower, and the bottom surface of the screening rod (205) on the front side outer wall of the screening bin (201) is in contact with the top surface of the screening rod (205) on the guide plate (202) on the left side wall of the screening bin (201).

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