Telescopic spraying frame of asphalt distribution truck

Abstract

The utility model relates to the technical field of asphalt distribution trucks, and discloses a telescopic spraying frame of an asphalt distribution truck, which comprises a mounting frame, an adjusting mechanism and a spraying mechanism, the side surface of the mounting frame is fixedly connected with the side surface of the adjusting mechanism, the top end of the spraying mechanism is fixedly connected with the bottom end of the adjusting mechanism, the adjusting mechanism comprises a top plate, and the top plate is fixedly connected with the top plate. The side face of the top plate is fixedly connected with the side face of the mounting frame. The two-way threaded rod rotates to drive the two threaded blocks to move oppositely along the inner wall of the side face of the top plate through threads, the tail ends of the telescopic frames rotate along the pins on the side faces of the threaded blocks, the telescopic frames stretch out and draw back, and the distance between every two adjacent installation pins is changed. The mounting pins drive the fixing sleeves to move to adjust the distance between the adjacent fixing sleeves, when the distance between the adjacent fixing sleeves is changed during adjustment, the connecting pipes slide along the inner walls of the side faces of the fixing sleeves, the spraying range of the spraying mechanism is adjusted, and the working efficiency and the equipment flexibility are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of asphalt spreading vehicles, and more specifically to a telescopic spraying frame of an asphalt spreading vehicle. Background Art

[0002] Asphalt is the residual oil distilled during the petroleum processing process. Due to its good durability, waterproof and anti-skid properties, it is widely used in road construction and roofing and waterproofing materials. During road construction, asphalt ensures a smoother road surface and reduces bumps and friction when vehicles are driving. During the road construction process, asphalt materials are sprayed on the road surface by an asphalt spreader. The asphalt spreader includes an asphalt storage tank, a coating system, a transmission system and a roller. The coating system includes a spray rack for evenly spraying hot asphalt on the road surface. The number and arrangement of the nozzles can be adjusted as needed to ensure that the asphalt is evenly distributed and form a smooth road surface.

[0003] Insufficient existing technology: Most existing spray racks are fixed structures. In order to facilitate the adjustment of the spraying range during use, the discharge pipes are mostly connected by multiple pipe sections through threads, and are mostly operated manually. Adjustment is time-consuming and laborious, affecting work efficiency. Utility Model Content

[0004] In order to overcome the above-mentioned defects of the prior art, the utility model provides a telescopic spray frame of an asphalt distributor to solve the problems existing in the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a telescopic spraying frame of an asphalt spreader, comprising a mounting frame, and also comprising: an adjusting mechanism and a spraying mechanism, the side surface of the mounting frame is fixedly connected to the side surface of the adjusting mechanism, the top end of the spraying mechanism is fixedly connected to the bottom end of the adjusting mechanism, the adjusting mechanism comprises a top plate, the side surface of the top plate is fixedly connected to the side surface of the mounting frame, the inner wall of the side surface of the top plate is movably connected with a two-way threaded rod, the side surface of the two-way threaded rod is threadedly connected with a threaded block, the side surface of the threaded block is movably connected to the inner wall of the side surface of the top plate, the side surface of the threaded block is movably connected to the telescopic frame through a pin, and the bottom end of the telescopic frame is movably sleeved with a mounting pin, the spraying mechanism comprises a mounting pipe, the top end of the mounting pipe is fixedly connected to the bottom end of the mounting frame, the side surface of the mounting pipe is movably sleeved with a fixed sleeve, the inner wall of the side surface of the fixed sleeve is movably sleeved with a connecting pipe, the bottom end of the fixed sleeve is fixedly connected with a spray head, and the top end of the fixed sleeve is fixedly connected to the bottom end of the mounting pin.

[0006] Furthermore, a protective shell is fixedly connected to the side of the top plate, a servo motor is fixedly connected to the inner wall of the side of the protective shell, a worm is fixedly connected to the output shaft of the servo motor, a worm gear is fixedly sleeved on the side of the bidirectional threaded rod, and the bottom end of the worm gear is meshed with the top end of the worm gear.

[0007] Furthermore, a scale is provided at the top of the top plate corresponding to the position of the threaded block, and a pointer is fixedly connected to the side of the threaded block.

[0008] Furthermore, a first limiting ring is fixedly connected to an inner wall of the side surface of the fixed sleeve, and a second limiting ring is fixedly connected to a side surface of the connecting pipe.

[0009] Furthermore, the inner wall of the side surface of the fixed sleeve is fixedly connected to a limiting protrusion corresponding to the position of the spray head, and the structures at both ends of the mounting pipe are the same as those of the connecting pipe.

[0010] Furthermore, the telescopic frames on both sides are symmetrically distributed along the center of the top plate, and the connecting pipe can be completely retracted into the fixed sleeves on both sides.

[0011] Technical effects and advantages of the utility model:

[0012] 1. The utility model drives two threaded blocks to move toward each other along the side inner wall of the top plate through the rotation of the bidirectional threaded rod, so that the end of the telescopic frame rotates along the pin of the side of the threaded block, so that the telescopic frame is telescoped, and the spacing between adjacent mounting pins is changed. The mounting pin drives the fixed sleeve to move to adjust the spacing between adjacent fixed sleeves. When the spacing between adjacent fixed sleeves is changed, the connecting pipe slides along the side inner wall of the fixed sleeve to connect the adjacent fixed sleeves and adjust the spraying range of the spraying mechanism. When not in use, the threaded blocks on both sides move toward the two ends of the top plate to shrink the telescopic frame and retract the fixed sleeves into the fixed sleeves, thereby reducing the occupied space and improving the work efficiency and equipment flexibility.

[0013] 2. The utility model limits the connection pipe by the cooperation of the second limiting ring and the first limiting ring when the connection pipe moves along the inner wall of the side of the fixed sleeve, so as to prevent the connection pipe from falling from the inside of the fixed sleeve. When the connection pipe is received into the inside of the fixed sleeve, the side of the connection pipe contacts the side of the limiting protrusion, so as to prevent the connection pipe from blocking the feed port of the spray head, and ensure that the asphalt flows smoothly inside the installation pipe, the connection pipe and the fixed sleeve, which is conducive to ensuring the normal operation of the equipment and improving the stability of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0015] Figure 2 This is a schematic diagram of the structure of the adjustment mechanism of the utility model;

[0016] Figure 3 This is a schematic diagram of the spraying mechanism structure of the utility model;

[0017] Figure 4 It is a partial cross-sectional structural diagram of the spraying mechanism of the utility model.

[0018] The accompanying drawings are marked as follows: 1. mounting frame; 2. adjusting mechanism; 201. top plate; 202. telescopic frame; 203. mounting pin; 204. threaded block; 205. servo motor; 206. protective shell; 207. worm; 208. bidirectional threaded rod; 209. worm gear; 3. spraying mechanism; 301. mounting pipe; 302. fixing sleeve; 303. connecting pipe; 304. first limiting ring; 305. second limiting ring; 306. limiting protrusion; 307. spraying head. DETAILED DESCRIPTION

[0019] The technical solution of the present invention will be clearly and completely described below in conjunction with the drawings in the present invention. In addition, the forms of the various structures recorded in the following embodiments are merely illustrative. The telescopic spray frame of an asphalt spreader involved in the present invention is not limited to the various structures recorded in the following embodiments. All other implementations obtained by ordinary technicians in this field without making creative work belong to the scope of protection of the present invention.

[0020] Reference Figures 1 to 4The utility model provides a telescopic spraying frame of an asphalt spreading vehicle, including a mounting frame 1, and also including: an adjusting mechanism 2 and a spraying mechanism 3. The side of the mounting frame 1 is fixedly connected to the side of the adjusting mechanism 2, and the top of the spraying mechanism 3 is fixedly connected to the bottom of the adjusting mechanism 2. The adjusting mechanism 2 includes a top plate 201, and the side of the top plate 201 is fixedly connected to the side of the mounting frame 1. The inner wall of the side of the top plate 201 is movably connected with a bidirectional threaded rod 208, and the side of the bidirectional threaded rod 208 is threadedly connected with a thread block 204. The thread block 20 The side of the threaded block 204 is movably connected to the inner wall of the side of the top plate 201, the side of the threaded block 204 is movably connected to the telescopic frame 202 through a pin, and the bottom end of the telescopic frame 202 is movably sleeved with a mounting pin 203, and the spraying mechanism 3 includes a mounting pipe 301, the top of the mounting pipe 301 is fixedly connected to the bottom end of the mounting frame 1, the side of the mounting pipe 301 is movably sleeved with a fixed sleeve 302, the inner wall of the side of the fixed sleeve 302 is movably sleeved with a connecting pipe 303, the bottom end of the fixed sleeve 302 is fixedly connected to a spray head 307, and the fixed sleeve 301 is fixedly connected to the bottom end of the fixed sleeve 307. The top of 02 is fixedly connected to the bottom of the mounting pin 203, and the equipment is installed on the tail of the asphalt spreading vehicle through the mounting frame 1. The pump body is installed at the end of the mounting pipe 301. The telescopic frame 202 has multiple interlaced connections connected by pins. According to the use requirements, the two-way threaded rod 208 rotates through the thread to drive the two threaded blocks 204 to move toward each other along the inner wall of the side of the top plate 201, so that the end of the telescopic frame 202 rotates along the pin on the side of the threaded block 204, so that the telescopic frame 202 is telescopic, so that the adjacent mounting pins 203 are moved. When the spacing between adjacent fixed sleeves 302 changes, the mounting pin 203 drives the fixed sleeve 302 to move and adjust the spacing between adjacent fixed sleeves 302. When the spacing between adjacent fixed sleeves 302 changes, the connecting pipe 303 slides along the side inner wall of the fixed sleeve 302 to connect the adjacent fixed sleeves 302 and adjust the spraying range of the spraying mechanism 3. When not in use, the threaded blocks 204 on both sides move toward the two ends of the top plate 201 to shrink the telescopic frame 202 and retract the fixed sleeve 302 into the fixed sleeve 302 to reduce the occupied space.

[0021] Among them, a protective shell 206 is fixedly connected to the side of the top plate 201, and a servo motor 205 is fixedly connected to the inner wall of the side of the protective shell 206. The output shaft of the servo motor 205 is fixedly connected to a worm 207. A worm gear 209 is fixedly sleeved on the side of the bidirectional threaded rod 208. The bottom end of the worm gear 209 is meshed with the top end of the worm 207. The servo motor 205 drives the worm 207 to rotate, and the bidirectional threaded rod 208 is driven to rotate through the meshing of the worm 207 and the worm gear 209.

[0022] Among them, a scale is provided at the top of the top plate 201 corresponding to the position of the threaded block 204, and a pointer is fixedly connected to the side of the threaded block 204. The pointer on the side of the threaded block 204 indicates the position of the scale at the top of the top plate 201, and the extension and retraction of the mounting pin 203 is determined, thereby determining the overall length of the spraying mechanism 3.

[0023] Among them, a first limiting ring 304 is fixedly connected to the inner wall of the side of the fixed sleeve 302, and a second limiting ring 305 is fixedly connected to the side of the connecting tube 303. When the connecting tube 303 moves along the inner wall of the side of the fixed sleeve 302, the second limiting ring 305 cooperates with the first limiting ring 304 to limit the connecting tube 303 to prevent the connecting tube 303 from falling from the inside of the fixed sleeve 302.

[0024] Among them, the inner wall of the side of the fixed sleeve 302 is fixedly connected to the limiting protrusion 306 corresponding to the position of the spray head 307, and the structures at both ends of the mounting pipe 301 are the same as those of the connecting pipe 303. When the connecting pipe 303 is received in the fixed sleeve 302, the side of the connecting pipe 303 contacts the side of the limiting protrusion 306 to prevent the connecting pipe 303 from blocking the feed port of the spray head 307, thereby ensuring that the asphalt flows smoothly inside the mounting pipe 301, the connecting pipe 303 and the fixed sleeve 302.

[0025] The telescopic frames 202 on both sides are symmetrically distributed along the center of the top plate 201 , and the connecting pipe 303 can be completely received inside the fixed sleeves 302 on both sides.

[0026] The working principle of the utility model is as follows: the equipment is installed on the tail of the asphalt spreading vehicle through the mounting frame 1, and the servo motor 205 is started according to the use requirements to drive the worm 207 to rotate, and the two-way threaded rod 208 is driven to rotate through the mutual engagement of the worm 207 and the worm gear 209, and the two threaded blocks 204 are driven to move toward each other along the side inner wall of the top plate 201 through the thread, so that the end of the telescopic frame 202 rotates along the pin on the side of the threaded block 204, so that the telescopic frame 202 is telescoped, and the spacing between adjacent mounting pins 203 is changed, and the mounting pin 203 drives the fixed sleeve 302 to move and adjust the spacing between adjacent fixed sleeves 302. When the spacing between adjacent fixed sleeves 302 is changed at the same time, the connecting pipe 303 slides along the side inner wall of the fixed sleeve 302 to connect the adjacent fixed sleeves 302. When the connecting pipe 303 is adjacent to the fixed sleeve 302, the pump body at the end of the equipment running installation pipe 301 extracts the asphalt in the tank of the asphalt spreader, transports it to various places of the fixed sleeve 302 and the connecting pipe 303 through the installation pipe 301, and finally discharges it from the spray head 307 for spraying. When the connecting pipe 303 moves along the inner wall of the side of the fixed sleeve 302, the second limiting ring 305 cooperates with the first limiting ring 304 to limit the connecting pipe 303 to prevent the connecting pipe 303 from falling from the inside of the fixed sleeve 302. When the connecting pipe 303 is received in the fixed sleeve 302, the side of the connecting pipe 303 contacts the side of the limiting protrusion 306 to prevent the connecting pipe 303 from blocking the feed port of the spray head 307, thereby ensuring that the asphalt flows smoothly inside the installation pipe 301, the connecting pipe 303 and the fixed sleeve 302.

[0027] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A telescopic spraying frame of an asphalt spreading vehicle, comprising a mounting frame (1), characterized in that: Also includes: The adjusting mechanism (2) and the spraying mechanism (3) are characterized in that the side of the mounting frame (1) is fixedly connected to the side of the adjusting mechanism (2), the top of the spraying mechanism (3) is fixedly connected to the bottom of the adjusting mechanism (2), the adjusting mechanism (2) comprises a top plate (201), the side of the top plate (201) is fixedly connected to the side of the mounting frame (1), the inner wall of the side of the top plate (201) is movably connected to a bidirectional threaded rod (208), the side of the bidirectional threaded rod (208) is threadedly connected to a threaded block (204), the side of the threaded block (204) is movably connected to the inner wall of the side of the top plate (201), and the threaded block (204) is movably connected to the inner wall of the side of the top plate (201). The side of the mounting frame (4) is movably connected to a telescopic frame (202) through a pin, the bottom end of the telescopic frame (202) is movably sleeved with a mounting pin (203), the spraying mechanism (3) comprises a mounting tube (301), the top end of the mounting tube (301) is fixedly connected to the bottom end of the mounting frame (1), the side of the mounting tube (301) is movably sleeved with a fixed sleeve (302), the inner wall of the side of the fixed sleeve (302) is movably sleeved with a connecting tube (303), the bottom end of the fixed sleeve (302) is fixedly connected to a spraying head (307), and the top end of the fixed sleeve (302) is fixedly connected to the bottom end of the mounting pin (203).

2. The telescopic spraying frame of an asphalt distributor according to claim 1, characterized in that: A protective shell (206) is fixedly connected to the side of the top plate (201), a servo motor (205) is fixedly connected to the inner wall of the side of the protective shell (206), an output shaft of the servo motor (205) is fixedly connected to a worm (207), a worm gear (209) is fixedly sleeved on the side of the bidirectional threaded rod (208), and the bottom end of the worm gear (209) is meshed with the top end of the worm gear (207).

3. The telescopic spraying frame of an asphalt distributor according to claim 1, characterized in that: The top of the top plate (201) is provided with a scale corresponding to the position of the threaded block (204), and a pointer is fixedly connected to the side of the threaded block (204).

4. The telescopic spraying frame of an asphalt distributor according to claim 1, characterized in that: A first limiting ring (304) is fixedly connected to the inner wall of the side surface of the fixed sleeve (302), and a second limiting ring (305) is fixedly connected to the side surface of the connecting tube (303).

5. The telescopic spraying frame of an asphalt distributor according to claim 4, characterized in that: The inner wall of the side surface of the fixed sleeve (302) is fixedly connected to a limiting protrusion (306) corresponding to the position of the spray head (307), and the structures at both ends of the mounting tube (301) are the same as those of the connecting tube (303).

6. The telescopic spraying frame of an asphalt distributor according to claim 1, characterized in that: The telescopic frames (202) on both sides are symmetrically distributed along the center of the top plate (201), and the connecting pipe (303) can be completely retracted into the interior of the fixed sleeves (302) on both sides.

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