Stone screener for highway construction

Abstract

A stone screener for highway construction relates to the technical field of highways and comprises a box body, two filter frames are inserted in the box body, each filter frame comprises a left plate and a right plate, a guide rod and a rotating shaft are arranged between the left plate and the right plate, a plurality of clockwise threaded sleeves and anticlockwise threaded sleeves are arranged on the rotating shaft at intervals, and the clockwise threaded sleeves and the anticlockwise threaded sleeves are connected with the guide rod. A first supporting rod is arranged between the clockwise threaded sleeve and the guide rod, a second supporting rod is arranged between the anticlockwise threaded sleeve and the guide rod, and stones can be screened more quickly and more thoroughly through the filter frame through combined use of the vibration mechanism and the vibration motor. The working mode of the screener is simple and convenient, and screening can be conducted only by pouring stones into the feeding port and starting the vibration motor. When the condition that stones are stuck occurs, people only need to rotate the rotating wheel, the problem can be easily solved, the filter frame does not need to be disassembled, and the working efficiency and convenience are greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of highways, in particular to a stone screener for highway construction. Background Art

[0002] A gravel screener is a mechanical device used to screen gravel, and is widely used in highway construction, mining, building materials production, and other fields. During highway construction, traditional gravel screeners can only perform preliminary screening tasks and cannot meet the diverse requirements of gravel particle size for different types of highway construction.

[0003] Chinese patent CN214600326U discloses a stone screener for highway construction. This screener uses a filter screen to screen stones. However, in actual use, this screener still has some problems. In particular, when the mesh size of the filter screen is similar to the particle size of the stones, the stones easily become stuck in the mesh. This not only significantly reduces screening efficiency, but also increases the difficulty and cost of cleaning the filter screen later, wasting a lot of manpower and resources. Utility Model Content

[0004] The purpose of the present invention is to solve the problems raised in the above background technology, and then proposes a highway construction stone screener.

[0005] The technical solution adopted by the utility model to solve its technical problems is:

[0006] A highway construction gravel screener comprises a box body, two filter frames are inserted in the box body, the two filter frames divide the box body into an upper box body, a middle box body and a lower box body, the top of the upper box body is provided with a feed port, the bottom of the lower box body is formed with a discharge pipe, the bottom of the lower box body is provided with a vibration mechanism, the filter frame comprises a left plate and a right plate, a guide rod and a rotating shaft are provided between the left plate and the right plate, a plurality of clockwise threaded sleeves and counterclockwise threaded sleeves are arranged at intervals on the rotating shaft, a runner is installed after the end of the rotating shaft passes through the right plate, a first support rod is threadedly connected to the clockwise threaded sleeve, the other end of the first support rod is slidably engaged with the guide rod, and a second support rod is threadedly connected to the counterclockwise threaded sleeve, the other end of the second support rod is slidably engaged with the guide rod.

[0007] Furthermore, the ends of the first support rod and the second support rod are provided with guide holes that match the guide rod.

[0008] Furthermore, a fixing plate is provided on one side of the filter frame, and the fixing plate is fixedly connected to the box body by bolts.

[0009] Furthermore, the rotating shaft includes a central shaft body, a rectangular mounting block is formed on the outside of the central shaft body, and rectangular plug holes that match the rectangular mounting block are formed in the clockwise threaded sleeve and the counterclockwise threaded sleeve.

[0010] Furthermore, an upper side outlet is formed on the left side of the upper box body, and a middle side outlet is formed on the right side of the middle box body.

[0011] Furthermore, the lower box body includes a conical tube, the bottom of the middle box body is connected to the conical tube, the conical tube is connected to a discharge tube, and a vibration motor is provided on the conical tube.

[0012] Furthermore, the vibration mechanism includes a support leg, an outer sleeve and a pad, the pad is provided with an outer sleeve, the support leg is slidably fitted in the outer sleeve, and a flexible spring is provided between the support leg and the bottom of the outer sleeve.

[0013] Furthermore, an upper guide groove plate is provided on the upper box body, and the upper guide groove plate is located at the upper side outlet.

[0014] Furthermore, a middle guide groove plate is provided on the middle box body, and the middle guide groove plate is located at the middle side outlet.

[0015] Compared with existing technologies, the present invention has the following advantages: The combined use of a vibration mechanism and a vibration motor allows stones to be screened more quickly and thoroughly through the filter frame. The filter operates simply and conveniently; simply pour the stones into the feed port and start the vibration motor to begin screening. If a stone becomes stuck, the problem can be easily resolved by simply turning the wheel, without having to disassemble the filter frame. This significantly improves work efficiency and convenience. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural diagram of the utility model;

[0017] Figure 2 It is a cross-sectional view of the utility model;

[0018] Figure 3 It is a structural diagram of the filter frame;

[0019] Figure 4 for Figure 3 A partial enlarged view of point A in the middle;

[0020] Figure 5 is a structural diagram of the rotating shaft;

[0021] Figure 6 It is a structural diagram of a clockwise threaded casing;

[0022] Among them: 11 upper box body, 111 upper guide groove plate, 112 upper side outlet, 12 middle box body, 121 middle guide groove plate, 122 middle side outlet, 13 lower box body, 131 vibration motor, 132 tapered tube, 133 discharge pipe, 2 legs, 3 outer sleeve, 31 flexible spring, 4 pad, 5 feed port, 6 filter frame, 61 left plate, 62 right plate, 63 guide rod, 64 rotating shaft, 641 central axis, 642 rectangular mounting matching block, 65 rotor, 67 clockwise threaded sleeve, 671 first support rod, 672 rectangular plug hole, 68 counterclockwise threaded sleeve, 681 second support rod, 7 fixing plate, 71 bolt. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention. The present invention is further described in conjunction with the drawings and embodiments:

[0024] like Figures 1-6 As shown, a highway construction gravel screener comprises a housing with two filter frames 6 inserted therein. The two filter frames divide the housing into an upper housing 11, a middle housing 12, and a lower housing 13. The upper housing has a feed port 5 at its top, and a discharge pipe 133 at its bottom. A vibration mechanism is also provided at the bottom of the lower housing. This vibration mechanism enhances the screening effect, allowing gravel to be screened more quickly and thoroughly through the filter frames. The filter frame comprises a left plate 61 and a right plate 62. A guide rod 63 and a rotating shaft 64 are provided between the left and right plates. A plurality of clockwise and counterclockwise threaded sleeves 67 and 68 are spaced apart on the rotating shaft. The design of the clockwise and counterclockwise threaded sleeves allows the filter frame's mesh size to be adjusted to accommodate different gravel sizes. A rotating wheel 65 is mounted on the end of the rotating shaft, which passes through the right plate. The rotating wheel design facilitates the rotation and adjustment of the filter frame, improving operational convenience. A first support rod 671 is threadedly connected to the clockwise threaded sleeve, and the other end of the first support rod is slidably engaged with the guide rod. A second support rod 681 is threadedly connected to the counterclockwise threaded sleeve, and the other end of the second support rod is slidably engaged with the guide rod.

[0025] The solution is refined, and the ends of the first support rod and the second support rod are provided with guide holes that match the guide rod.

[0026] Furthermore, a fixing plate 7 is provided on one side of the filter frame, and the fixing plate is fixedly connected to the box body by bolts 71.

[0027] Furthermore, the rotating shaft includes a central shaft body 641, a rectangular mounting block 642 is formed on the outside of the central shaft body, and a rectangular plug hole 672 that cooperates with the rectangular mounting block is formed in the clockwise threaded sleeve 67 and the counterclockwise threaded sleeve 68.

[0028] Furthermore, an upper outlet 112 is formed on the left side of the upper box, and a middle outlet 122 is formed on the right side of the middle box. The design of the upper outlet and the middle outlet allows stones of different sizes to be discharged from the upper box and the middle box respectively, thereby improving the accuracy and efficiency of screening.

[0029] Furthermore, the lower box body includes a conical tube 132, the bottom of the middle box body is connected to the conical tube, the conical tube is connected to a feed pipe, and a vibration motor 131 is provided on the conical tube.

[0030] In at least one embodiment, the vibration mechanism includes a support leg 2, an outer sleeve 3, and a backing plate 4. The backing plate is provided with an outer sleeve, and the support leg is slidably fitted within the outer sleeve. A flexible spring 31 is provided between the support leg and the bottom of the outer sleeve. When the vibration motor is operating, the entire device can achieve vertical reciprocating motion under the action of the flexible spring.

[0031] Furthermore, an upper guide groove plate 111 is provided on the upper box body, and the upper guide groove plate is located at the upper side outlet.

[0032] Furthermore, a middle guide slot plate 121 is provided on the middle box body, and the middle guide slot plate is located at the middle side outlet.

[0033] Working method: First, make sure all parts of the screen are intact, place the screen on a solid and stable working surface, and ensure that the legs and the flexible springs in the outer sleeve are correctly installed and in good working condition to provide sufficient buffering and restoring force when vibrating.

[0034] Before starting the filter, check that the feed inlet is unobstructed to ensure smooth stone entry. Verify that the upper and middle outlets are positioned correctly to allow for the proper discharge of stones of varying sizes. Check the installation of the tapered tube and vibrating motor in the lower housing to ensure they are secure and that the discharge pipe is properly connected to ensure smooth stone discharge.

[0035] Pour the stones to be screened into the upper box through the feed port, carefully controlling the speed of the stones to prevent excessive accumulation and poor screening results. Start the vibration motor, causing the entire screen to reciprocate vertically under the action of a flexible spring. Adjust the vibration motor frequency to achieve optimal screening results. During the screening process, the stones are graded and screened through the filter frames between the upper, middle, and lower boxes. Larger stones remain in the upper box and are discharged through the upper outlet. Medium-sized stones enter the middle box and are discharged through the middle outlet. Smaller stones enter the lower box and are discharged through the discharge pipe.

[0036] When the screening is completed and stones are stuck between the first support rod and the second support rod, people rotate the wheel to change the distance between the first support rod and the second support rod, so that the stones fall from the gap between the two without people disassembling the filter frame to remove the stones.

[0037] The above shows and describes the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and improvements are intended to fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. A road construction stone screener, characterized in that: The filter frame is provided with a first support rod and a second support rod having a threaded connection to the filter housing, the second support rod being connected to the filter housing by a threaded connection to the filter housing, the second support rod being connected to the filter housing by a threaded connection to the filter housing, and the second support rod being connected to the filter housing by a threaded connection to the filter housing.

2. The highway construction stone screening device according to claim 1, characterized in that: The ends of the first support rod and the second support rod are provided with guide holes matched with the guide rod.

3. The road construction gravel screener according to claim 1 or 2, characterized in that: A fixing plate is provided on one side of the filter frame, and the fixing plate is fixedly connected to the box body by bolts.

4. The road construction stone screening device according to claim 3, characterized in that: The rotating shaft includes a central shaft body, a rectangular mounting matching block is formed on the outer side of the central shaft body, and rectangular plug holes matching with the rectangular mounting matching block are formed in the clockwise threaded sleeve and the counterclockwise threaded sleeve.

5. The road construction gravel screener according to claim 1, characterized in that: An upper side outlet is formed on the left side of the upper box body, and a middle side outlet is formed on the right side of the middle box body.

6. The road construction stone screening device according to claim 4, characterized in that: The lower box body includes a conical tube, the bottom of the middle box body is connected to the conical tube, the conical tube is connected to a feed tube, and a vibration motor is provided on the conical tube.

7. The road construction gravel screener according to claim 6, characterized in that: The vibration mechanism includes a support leg, an outer sleeve and a pad. The pad is provided with an outer sleeve. The support leg is slidably fitted in the outer sleeve. A flexible spring is provided between the support leg and the bottom of the outer sleeve.

8. The road construction gravel screener according to claim 1, characterized in that: An upper guide slot plate is provided on the upper box body, and the upper guide slot plate is located at the upper side outlet.

9. The road construction stone screening device according to claim 1, characterized in that: The middle box body is provided with a middle guide slot plate, and the middle guide slot plate is located at the middle side outlet.

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