A highway maintenance aggregate screening device

Abstract

The utility model relates to the technical field of highway maintenance provides a highway maintenance broken stone screening device, include: box, still include: sliding frame, the opposite side of sliding connection in the inner wall of box. The utility model, through the controller control motor starts, makes its output shaft drive rotation pole and cam rotate, makes the cam exert an upward thrust to the square frame, drives movable frame, screen and sliding block etc. Move upward, make the movable rod slide upward, make spring compression simultaneously, when the thrust of the cam to the square frame disappears, at this moment through the reset force of spring, can exert a downward force to the sliding block, drive the square frame, movable frame and screen to move downward, so repeatedly, make the screen reciprocate, prevent broken stone to block the screen, like this can avoid using screw rod, lead to broken stone to fall into the thread groove and appear the situation of jamming, thereby guaranteeing continuously screening broken stone, and further improve the efficiency of broken stone screening.

Description

Technical Field

[0001] This utility model relates to the field of highway maintenance technology, and in particular to a highway maintenance crushed stone screening device. Background Technology

[0002] Highway maintenance refers to a series of preventative, restorative, and improvement-oriented technical measures and management activities undertaken to maintain the good technical condition of highways and their ancillary facilities, extend their service life, and ensure safe, comfortable, and smooth driving. It encompasses daily inspections, minor repairs, medium and major overhauls, and specialized treatments, including pavement repair, roadbed reinforcement, drainage system cleaning, bridge and tunnel inspection and maintenance, and the upgrading of traffic safety facilities.

[0003] In the prior art, for example, Chinese Patent No. CN219291960U discloses a highway maintenance crushed stone screening device, including a shell. A feeding cylinder is fixedly connected to the top of the shell and communicates with it. A support frame is fixedly connected to the inner wall of the shell. A filter screen body is mounted on the inner side of the support frame. A partition plate is fixedly connected to the top of the support frame. The top of the partition plate is fixedly connected to the top of the inner wall of the shell. A first feeding port is opened on the left side of the shell above the partition plate, and a second feeding port is opened at the bottom of the right side of the shell. Sealing plates are inserted into the outer side of the shell at positions corresponding to the first and second feeding ports via insert blocks. This highway maintenance crushed stone screening device has a reasonable structural design and is easy to use. During screening, it can push out crushed stone clogging the filter screen holes, thereby improving screening efficiency. Furthermore, when the filter screen is damaged, it can be quickly replaced, improving the practicality of the equipment and fully meeting usage requirements.

[0004] While the above solution has the advantages mentioned above, its disadvantages are as follows: Although it can rotate the screw by turning on the second motor and having its output shaft drive the screw to rotate, and the translation block connected to it moves horizontally by the limit slider, thereby using the clearing roller to push out the blocked crushed stone, the crushed stone falling below may contain small stones that may fall into the screw's thread groove, causing the translation block to be obstructed or even jammed during movement, requiring the machine to be stopped for cleaning, thus reducing the efficiency of crushed stone screening. Utility Model Content

[0005] The purpose of this invention is to solve the problem in the existing technology where, although the output shaft of the second motor can be turned on to drive the screw to rotate, and the translation block threaded to it can move horizontally by the limiting slider, thereby using the clearing roller to push out the blocked gravel, small stones falling below may fall into the thread groove of the screw, causing the translation block to be obstructed or even jammed during movement, requiring the machine to be stopped for cleaning, thus reducing the efficiency of gravel screening.

[0006] To achieve the above objectives, this utility model adopts the following technical solution: a highway maintenance crushed stone screening device, comprising: a housing, and further comprising:

[0007] A sliding frame is slidably connected to opposite sides of the inner wall of the box. A movable frame is slidably connected inside the sliding frame. A screen is fixedly connected to the inner wall of the movable frame. A square frame is fixedly connected to the bottom of the movable frame. Two sliding grooves are symmetrically opened on both sides of the top of the square frame. A slider is slidably connected inside the sliding groove. Two movable rods are symmetrically slidably connected to both sides of the top of the sliding frame. The movable rods are fixedly connected to the sliders. A spring is provided on the outer surface of the movable rods. A rotating rod is rotatably connected to opposite sides of the inner wall of the box. Two cams are symmetrically fixedly connected to the outer surface of the rotating rod. A motor is fixedly connected to one side of the box. The output end of the motor is fixedly connected to one end of the rotating rod.

[0008] Preferably, one end of the spring is fixedly connected to the top of the slider, and the other ends of the plurality of springs are respectively fixedly connected in pairs to the two sides of the bottom of the slide frame.

[0009] Preferably, one end of the movable rod is fixedly connected to a limit ring, and the slider is configured in an I-shape.

[0010] Preferably, two connecting strips are symmetrically fixedly connected to one side of the sliding frame, and a square strip is fixedly connected to the opposite side of the two connecting strips. A straight groove is opened on one side of the square strip.

[0011] Preferably, a disc is fixedly connected to the other end of the rotating rod, and a round rod is fixedly connected to the eccentric part of the disc, with the outer surface of the round rod slidably connected to the inside of the straight groove.

[0012] Preferably, an elastic rubber sheet is fixedly connected to the top of the movable frame, and the outer surface of the elastic rubber sheet is fixedly connected to the inner wall of the box.

[0013] Preferably, a feeding hopper is fixedly connected to the top of the box, and the feeding hopper is connected to the box.

[0014] Preferably, two discharge doors are movably installed on the other side of the box via hinges, and a handle is fixedly connected to one side of each discharge door.

[0015] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0016] 1. This utility model uses a controller to start a motor, causing its output shaft to drive a rotating rod and a cam to rotate. The cam applies an upward thrust to the square frame, causing the movable frame, screen, and slider to move upward. This causes the movable rod to slide upward, simultaneously compressing the spring. When the cam's thrust on the square frame disappears, the spring's restoring force applies a downward force to the slider, causing the square frame, movable frame, and screen to move downward. This process repeats, causing the screen to vibrate up and down, preventing gravel from clogging the screen. This avoids the use of a screw, which could cause gravel to fall into the threaded groove and get stuck, thus ensuring continuous screening of gravel and improving screening efficiency.

[0017] 2. This utility model, through the rotation of the rotating rod, can drive the disc and the round rod to rotate, causing the round rod to slide inside the straight groove, and apply a reciprocating force to the square bar, causing the connecting bar to move to one side, and simultaneously driving the sliding frame, movable frame, and screen to oscillate left and right, thus screening the crushed stone. At the same time, the movable rod drives the slider to slide left and right inside the chute. In this way, only one motor is needed to complete the up-and-down reciprocating vibration and left-and-right reciprocating oscillation of the screen, thereby reducing the production cost of this device. Attached Figure Description

[0018] Figure 1 A schematic diagram of the structure of a road maintenance crushed stone screening device provided by this utility model;

[0019] Figure 2 A partial cross-sectional side view of a road maintenance crushed stone screening device provided by this utility model;

[0020] Figure 3 This utility model provides a crushed stone screening device for highway maintenance. Figure 2 Enlarged structural diagram at point A in the middle;

[0021] Figure 4 This is a partial cross-sectional bottom view of a road maintenance crushed stone screening device provided by this utility model.

[0022] Legend:

[0023] 1. Housing; 101. Feed hopper; 102. Discharge gate; 2. Sliding frame; 201. Connecting strip; 202. Movable frame; 203. Screen; 204. Elastic rubber sheet; 205. Square bar; 206. Straight groove; 207. Round rod; 208. Disc; 3. Motor; 301. Rotating rod; 302. Cam; 303. Square frame; 304. Sliding groove; 305. Sliding block; 306. Movable rod; 307. Spring; 308. Limiting ring. Detailed Implementation

[0024] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0025] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0026] Examples, such as Figure 1-4 As shown, this utility model provides a road maintenance crushed stone screening device, including: a box body 1, and a sliding frame 2, which is slidably connected to the opposite side of the inner wall of the box body 1. A movable frame 202 is slidably connected inside the sliding frame 2. A screen 203 is fixedly connected to the inner wall of the movable frame 202. A square frame 303 is fixedly connected to the bottom of the movable frame 202. Two sliding grooves 304 are symmetrically opened on both sides of the top of the square frame 303. A slider 305 is slidably connected inside the sliding groove 304. Two movable rods 306 are symmetrically slidably connected to both sides of the top of the sliding frame 2. The movable rods 306 are fixedly connected to the sliders 305. A spring 307 is provided on the outer surface of the movable rods 306. A rotating rod 301 is rotatably connected to the opposite side of the inner wall of the box body 1. Two cams 302 are symmetrically fixedly connected to the outer surface of the rotating rod 301. A motor 3 is fixedly connected to one side of the box body 1. The output end of the motor 3 is fixedly connected to one end of the rotating rod 301.

[0027] Furthermore, such as Figure 1-4 As shown, one end of spring 307 is fixedly connected to the top of slider 305, and the other ends of multiple springs 307 are symmetrically fixedly connected to the two sides of the bottom of slide frame 2. Under the reset force of spring 307, a downward force can be applied to slider 305.

[0028] Furthermore, such as Figure 1-4As shown, a limit ring 308 is fixedly connected to one end of the movable rod 306, and the slider 305 is set in the shape of an I-beam. The limit ring 308 limits the downward sliding distance of the movable rod 306. The slider 305 is set in the shape of an I-beam so that when the frame 303 moves up and down, it can drive the slider 305 to move up and down.

[0029] Furthermore, such as Figure 1-4 As shown, two connecting strips 201 are symmetrically fixedly connected to one side of the sliding frame 2. A square strip 205 is fixedly connected to the opposite side of the two connecting strips 201. A straight groove 206 is opened on one side of the square strip 205. With the above arrangement, when the square strip 205 moves back and forth left and right, it can drive the connecting strip 201 to move back and forth left and right.

[0030] Furthermore, such as Figure 1-4 As shown, a disc 208 is fixedly connected to the other end of the rotating rod 301. A round rod 207 is fixedly connected to the eccentric part of the disc 208. The outer surface of the round rod 207 is slidably connected to the inside of the straight groove 206. By rotating the rotating rod 301, the disc 208 and the round rod 207 can be driven to rotate, so that the round rod 207 slides inside the straight groove 206 and applies a reciprocating force to the square bar 205.

[0031] Furthermore, such as Figure 1-4 As shown, an elastic rubber sheet 204 is fixedly connected to the top of the movable frame 202. The outer surface of the elastic rubber sheet 204 is fixedly connected to the inner wall of the box 1. With the setting of the elastic rubber sheet 204, when the movable frame 202 vibrates up and down and shakes left and right, the elastic rubber sheet 204 can be stretched or contracted to an appropriate degree, while preventing gravel from falling from the gap between the box 1 and the movable frame 202 onto the sliding frame 2.

[0032] Furthermore, such as Figure 1-4 As shown, a feed hopper 101 is fixedly connected to the top of the box 1. The feed hopper 101 is connected to the box 1. The feed hopper 101 facilitates the pouring of crushed stone into the box 1.

[0033] Furthermore, such as Figure 1-4 As shown, two discharge doors 102 are movably installed on the other side of the box 1 via hinges. A handle is fixedly connected to one side of the discharge door 102. By opening the upper and lower discharge doors 102 with the handle, the remaining crushed stone on the screen 203 and the crushed stone at the bottom of the box 1 can be picked up.

[0034] Working principle: During use, crushed stone used for road maintenance is poured from the feed hopper 101 into the housing 1, causing the stone to fall onto the screen 203. The controller then starts the motor 3, causing its output shaft to drive the rotating rod 301 and cam 302 to rotate. The cam 302 applies an upward thrust to the frame 303, causing the movable frame 202, screen 203, and slider 305 to move upwards. This causes the movable rod 306 to slide upwards, simultaneously compressing the spring 307. When the cam 302 moves towards the frame 303... When the thrust disappears, the spring 307's reset force applies a downward force to the slider 305, causing the square frame 303, movable frame 202, and screen 203 to move downwards. This process repeats, causing the screen 203 to vibrate up and down, preventing gravel from clogging it. This avoids the use of a screw, which could cause gravel to fall into the threaded groove and get stuck, thus ensuring continuous screening of gravel and improving screening efficiency. Simultaneously, the rotation of the rotating rod 301... This causes the disc 208 and the rod 207 to rotate, making the rod 207 slide inside the straight groove 206. It also applies a reciprocating force to the square bar 205, causing the connecting bar 201 to move to one side. Simultaneously, this causes the sliding frame 2, the movable frame 202, and the screen 203 to reciprocate left and right, screening the gravel. Simultaneously, the movable rod 306 drives the slider 305 to slide left and right inside the chute 304. Thus, only one motor 3 is needed to complete the operation of the screen 203. The device features reciprocating vibration and swaying motion, which reduces production costs. The elastic rubber sheet 204 allows for appropriate stretching or contraction when the movable frame 202 vibrates up and down and sways left and right, preventing gravel from falling from the gap between the box 1 and the movable frame 202 onto the sliding frame 2. Opening the upper and lower discharge doors 102 via the handle allows for the collection of gravel remaining on the screen 203 and from the bottom of the box 1.

[0035] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the present utility model.

Claims

1. A highway maintenance crushed stone screening device, comprising: The housing (1) is characterized in that it further includes: A sliding frame (2) is slidably connected to the opposite side of the inner wall of the box (1). A movable frame (202) is slidably connected inside the sliding frame (2). A screen (203) is fixedly connected to the inner wall of the movable frame (202). A square frame (303) is fixedly connected to the bottom of the movable frame (202). Two sliding grooves (304) are symmetrically opened on both sides of the top of the square frame (303). A slider (305) is slidably connected inside the sliding groove (304). Two movable rods (306) are symmetrically slidably connected. The movable rods (306) are fixedly connected to the slider (305). A spring (307) is provided on the outer surface of the movable rods (306). A rotating rod (301) is rotatably connected to the opposite side of the inner wall of the box (1). Two cams (302) are symmetrically fixedly connected to the outer surface of the rotating rod (301). A motor (3) is fixedly connected to one side of the box (1). The output end of the motor (3) is fixedly connected to one end of the rotating rod (301).

2. The highway maintenance crushed stone screening device according to claim 1, characterized in that: One end of the spring (307) is fixedly connected to the top of the slider (305), and the other ends of the multiple springs (307) are symmetrically fixedly connected to the two sides of the bottom of the slide frame (2).

3. The highway maintenance crushed stone screening device according to claim 2, characterized in that: One end of the movable rod (306) is fixedly connected to a limit ring (308), and the slider (305) is configured in an I-shape.

4. The highway maintenance crushed stone screening device according to claim 2, characterized in that: Two connecting strips (201) are symmetrically fixedly connected to one side of the sliding frame (2), and a square strip (205) is fixedly connected to the opposite side of the two connecting strips (201). A straight groove (206) is opened on one side of the square strip (205).

5. A highway maintenance crushed stone screening device according to claim 4, characterized in that: The other end of the rotating rod (301) is fixedly connected to a disc (208), and a round rod (207) is fixedly connected to the eccentric part of the disc (208). The outer surface of the round rod (207) is slidably connected to the inside of the straight groove (206).

6. The highway maintenance crushed stone screening device according to claim 1, characterized in that: An elastic rubber sheet (204) is fixedly connected to the top of the movable frame (202), and the outer surface of the elastic rubber sheet (204) is fixedly connected to the inner wall of the box (1).

7. The highway maintenance crushed stone screening device according to claim 1, characterized in that: The top of the box (1) is fixedly connected to a feeding hopper (101), and the feeding hopper (101) is connected to the box (1).

8. The highway maintenance crushed stone screening device according to claim 7, characterized in that: Two discharge doors (102) are movably installed on the other side of the box (1) via hinges, and a handle is fixedly connected to one side of each discharge door (102).

Images