A sample crushing device for rock and soil exploration

Abstract

This utility model relates to the field of crushing device technology, and more particularly to a sample crushing device for rock and soil exploration. It includes a shell, with two crushing rollers rotatably connected to the center of the shell. A screen ring is rotatably connected inside the shell and outside the two crushing rollers, with multiple screen holes on the screen ring. A lifting plate is installed inside the screen ring. A feed inlet is opened on the front side of the shell relative to the inner side of the screen ring, and a feed hopper is fixedly connected to the outside of the feed inlet. A discharge outlet is opened at the bottom of the shell. A cleaning component is installed between the inner side of the shell and the outer side of the screen ring. This utility model, through the design of the screen ring and the lifting plate, can automatically return rock and soil samples with unqualified particle sizes to the crushing area for further crushing. Furthermore, the cleaning component continuously brushes the inner wall of the shell and the outer wall of the screen ring, effectively preventing rock and soil particles from clogging the screen holes or adhering to the inner wall of the shell, ensuring the sieving effect and sample integrity.

Description

Technical Field

[0001] This utility model relates to the field of crushing device technology, and in particular to a sample crushing device for rock and soil exploration. Background Technology

[0002] Geological and geotechnical engineering investigation refers to the activities of investigating, analyzing, and evaluating the geological and environmental characteristics and geotechnical engineering conditions of a construction site according to the requirements of a construction project, and preparing investigation documents. The task of geotechnical engineering investigation is to accurately reflect the engineering geological conditions and the influence of soil and rock properties of the site according to the requirements of different investigation stages. During the geological and geotechnical investigation process, crushing devices are used to break up soil and rock samples to facilitate characteristic analysis of the soil and rock.

[0003] A search revealed a patent with authorization announcement number CN221832517U, which discloses a crushing device for geological and soil exploration samples. After the crushed sample enters the screen on the moving frame, the moving frame is pushed back and forth by the output end of the second electric push rod, so that the sample can be quickly screened through the screen. This operation can screen out soil and rock samples with qualified particle sizes. However, in the actual application of the above device, in order to ensure the integrity of the sample, soil and rock with unqualified particle sizes need to be crushed again. This requires manual removal of soil and rock with unqualified particle sizes from the screen and reintroduction into the feed inlet, which is time-consuming and labor-intensive. Utility Model Content

[0004] In order to overcome the shortcomings of the prior art, this utility model provides a sample crushing device for geotechnical exploration.

[0005] The technical solution is as follows: A sample crushing device for rock and soil exploration includes an outer shell, two crushing rollers rotatably connected to the middle of the outer shell, a screen ring rotatably connected inside the outer shell and outside the two crushing rollers, the screen ring having multiple screen holes for screening out qualified rock and soil particles, a lifting plate for lifting unqualified rock and soil particles inside the screen ring, a feed inlet on the front side of the outer shell relative to the inner side of the screen ring, a feed hopper fixedly connected to the outside of the feed inlet, a discharge outlet at the bottom of the outer shell, and a cleaning component between the inner side of the outer shell and the outer side of the screen ring for cleaning the inner wall of the outer shell and the outer wall of the screen ring.

[0006] Furthermore, the front end of the rotating shaft of each crushing roller rotates through the outer shell and is fixedly connected to a gear. The two gears mesh with each other. A motor is installed on the front side of the outer shell, and the output shaft of the motor is connected to the rotating shaft of one of the crushing rollers.

[0007] Furthermore, a second motor is installed on the rear side of the outer casing. The output shaft of the second motor rotates through the outer casing and is fixedly connected to a second gear. A toothed ring is provided on the outer side of the screen ring, which meshes with the second gear.

[0008] Furthermore, the cleaning assembly includes a rotating ring and a sweeping rod. The rotating ring is rotatably connected to the housing. The inner side of the rotating ring is provided with a toothed ring that meshes with the gear. The sweeping rod is fixedly connected to the rotating ring. Brushes are symmetrically arranged on both sides of the sweeping rod. The two brushes are used to brush the inner wall of the housing and the outer wall of the screen ring, respectively.

[0009] Furthermore, there are three lifting plates, which are fixed to the inner wall of the screen ring in a ring array.

[0010] Furthermore, two support legs are symmetrically fixed to the bottom of the outer shell.

[0011] This invention has the following advantages: Through the design of the sieve ring and the lifting plate, it can automatically return soil and rock samples with unqualified particle sizes to the crushing area for further crushing without manual intervention, thus improving work efficiency. Furthermore, through the design of the cleaning component, it can continuously brush the inner wall of the outer shell and the outer wall of the sieve ring, effectively preventing soil and rock particles from clogging the sieve holes or adhering to the inner wall of the outer shell, ensuring the screening effect and the integrity of the sample. Attached Figure Description

[0012] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0013] Figure 2 This is a three-dimensional structural cross-sectional view of the present invention.

[0014] Figure 3 This is a three-dimensional structural cross-sectional view of the outer shell of this utility model.

[0015] Figure 4 This is a schematic diagram of the installation structure of the gear, screen ring, and rotating ring of this utility model.

[0016] The labels in the diagram are as follows: 1-Outer shell, 101-Inlet, 102-Outlet, 2-Crushing roller, 3-Screen ring, 4-Lifting plate, 5-Feed hopper, 601-Gear 1, 602-Motor 1, 701-Motor 2, 702-Gear 2, 703-Gear ring 1, 801-Rotating ring, 802-Gear ring 2, 803-Sweeping bar, 804-Brush, 9-Support leg. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0018] like Figures 1-4As shown, a sample crushing device for geotechnical investigation includes a shell 1. Two crushing rollers 2 are rotatably connected to the middle of the shell 1. A screen ring 3 is rotatably connected inside the shell 1 and outside the two crushing rollers 2. The screen ring 3 has multiple screen holes for screening out qualified soil particles. Inside the screen ring 3, there are three lifting plates 4 for lifting unqualified soil particles. They are fixed to the inner wall of the screen ring 3 in a ring array. A feed inlet 101 is opened on the front side of the shell 1 relative to the inner side of the screen ring 3. A feed hopper 5 is fixedly connected to the outside of the feed inlet 101. A discharge outlet 102 is opened at the bottom of the shell 1. A cleaning assembly is provided between the inner side of the shell 1 and the outer side of the screen ring 3. The cleaning assembly is used to clean the inner wall of the shell 1 and the outer wall of the screen ring 3.

[0019] The front end of the rotating shaft of the crushing roller 2 rotates through the outer shell 1 and is fixed with a gear 601. The two gears 601 mesh with each other to realize the synchronous reverse rotation of the two crushing rollers 2. A motor 602 is installed on the front side of the outer shell 1. The output shaft of the motor 602 is connected to the rotating shaft of one of the crushing rollers 2.

[0020] A second motor 701 is installed on the rear side of the outer casing 1. The output shaft of the second motor 701 rotates through the outer casing 1 and is fixedly connected to a second gear 702. A first gear ring 703 is provided on the outer side of the screen ring 3. The first gear ring 703 meshes with the second gear 702 so that the screen ring 3 can be driven to rotate by the rotation of the second gear 702.

[0021] The cleaning assembly includes a rotating ring 801 and a sweeping bar 803. The rotating ring 801 is rotatably connected to the housing 1. A gear ring 802 is provided on the inner side of the rotating ring 801. The gear ring 802 meshes with a gear 702 so that the rotating ring 801 is driven to rotate by the rotation of the gear 702. The sweeping bar 803 is fixedly connected to the rotating ring 801. Brushes 804 are symmetrically arranged on both sides of the sweeping bar 803. The two brushes 804 are used to brush the inner wall of the housing 1 and the outer wall of the screen ring 3, respectively.

[0022] Two support legs 9 are symmetrically fixed to the bottom of the outer casing 1 to stably support the entire device.

[0023] Working principle: During use, a soil sample is added to the inner side of the screen ring 3 inside the outer shell 1 through the feed hopper 5. The crushing roller 2 connected to it is driven to rotate by the motor 602. The crushing roller 2 drives the other crushing roller 2 to rotate synchronously through the meshing of two gears 601, thereby crushing the soil sample passing between the two crushing rollers 2. At the same time, the gear 702 is driven to rotate by the motor 701, thereby driving the screen through the meshing of gear 702 with gear ring 703 and gear ring 802. As the ring 3 and the rotating ring 801 rotate, the qualified rock and soil particles will be screened out through the screen holes on the screen ring 3 and discharged through the discharge port 102. The unqualified rock and soil particles will be lifted by the lifting plate 4 to the top of the screen ring 3 and fall back into the crushing rollers 2 for crushing under their own gravity. The rotating ring 801 drives the sweeping rod 803 to rotate, so that the brush 804 on the sweeping rod 803 brushes the inner wall of the outer shell 1 and the outer wall of the screen ring 3 respectively, effectively preventing rock and soil particles from clogging the screen holes of the screen ring 3 and adhering to the inner wall of the outer shell 1.

[0024] The above embodiments are only for illustrating the technical concept and features of this utility model, and are intended to enable those skilled in the art to understand the content of this utility model and implement it accordingly. They should not be construed as limiting the scope of protection of this utility model. All equivalent changes or modifications made in accordance with the spirit and essence of this utility model should be included within the scope of protection of this utility model.

Claims

1. A sample crushing device for rock and soil exploration, characterized in that: It includes a housing (1), in the middle of the housing (1), two crushing rollers (2) are rotatably connected. Inside the housing (1) and outside the two crushing rollers (2), a sieve ring (3) is rotatably connected. The sieve ring (3) has a plurality of sieve holes for sieving out qualified particle size rock and soil. Inside the sieve ring (3), a lifting plate (4) for lifting unqualified particle size rock and soil is provided. On the front side of the housing (1) and inside the sieve ring (3), a feed inlet (101) is opened. Outside the feed inlet (101), a feed hopper (5) is fixedly connected. At the bottom of the housing (1), a discharge outlet (102) is opened. Between the inner side of the housing (1) and the outer side of the sieve ring (3), a cleaning component is provided, and the cleaning component is used to clean the inner wall of the housing (1) and the outer wall of the sieve ring (3).

2. The sample crushing device for rock and soil exploration as described in claim 1, characterized in that: The front ends of the rotating shafts of the crushing rollers (2) all rotatably penetrate through the housing (1) and are fixedly connected with a first gear (601). The two first gears (601) are meshed with each other. A first motor (602) is installed on the front side of the housing (1), and the output shaft of the first motor (602) is in transmission connection with the rotating shaft of one of the crushing rollers (2).

3. The sample crushing device for geotechnical investigation according to claim 2, characterized in that: A second motor (701) is installed on the rear side of the housing (1). The output shaft of the second motor (701) rotatably penetrates through the housing (1) and is fixedly connected with a second gear (702). On the outer side of the sieve ring (3), a first toothed ring (703) meshing with the second gear (702) is provided.

4. A sample crushing device for geotechnical investigation according to claim 3, characterized in that: The cleaning component includes a rotating ring (801) and a sweeping rod (803). The rotating ring (801) is rotatably connected inside the housing (1). Inside the rotating ring (801), a second toothed ring (802) meshing with the second gear (702) is provided. The sweeping rod (803) is fixedly connected to the rotating ring (801). On both sides of the sweeping rod (803), brushes (804) are symmetrically arranged. The two sections of the brushes (804) are respectively used to brush the inner wall of the housing (1) and the outer wall of the sieve ring (3).

5. The rock and soil exploration sample crushing device according to claim 4, wherein: There are three lifting plates (4), which are fixedly connected to the inner wall of the sieve ring (3) in an annular array.

6. The sample crushing device for geotechnical investigation according to claim 5, characterized in that: On the bottom of the housing (1), two support legs (9) are fixedly connected symmetrically left and right.

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