Accurate weighing equipment for asphalt blending materials

Abstract

The invention belongs to the technical field of weighing equipment, and particularly relates to accurate weighing equipment for asphalt blending ingredients, which comprises a support frame and a gravity sensor mounted on the surface of the upper end of the support frame, a weighing box is mounted in the support frame, a lapping frame is fixedly welded to the side edge of the weighing box, and the lapping frame is placed at the upper end of the gravity sensor. By arranging the cleaning structure and the linkage mechanism, a user can move a baffle plate by pulling a handle when guiding out the weighed asphalt admixture in the weighing box, so that unloading is completed; meanwhile, movement of a shielding plate can drive a first L-shaped plate and a clamping tooth plate to move, under the meshing action of the clamping tooth plate and a gear disc, a rotating rod drives a first bevel gear to rotate, and under the action that the first bevel gear is meshed with a second bevel gear, a rotating shaft rod drives a winding disc to rotate; finally, the effect that the traction steel wire pulls the scraping frame to move upwards is achieved, and cleaning of the inner wall of the weighing box by the scraping frame is completed.

Description

Technical Field

[0001] The invention relates to the technical field of weighing equipment, and in particular to a precise weighing equipment for asphalt admixtures. Background Art

[0002] In the industrial weighing process of asphalt admixtures, accuracy and efficiency are crucial considerations. However, traditional weighing equipment often faces a series of challenges when dealing with adhesive and abrasive materials such as asphalt admixtures. These challenges are not only related to the accuracy of the weighing results, but also directly affect the maintenance cost and service life of the equipment.

[0003] Specifically, after weighing, traditional weighing equipment often leaves residues of asphalt admixtures on the inner wall of the weighing box. These residues are not only difficult to remove manually, but will also accumulate during the subsequent weighing process, causing the weighing error to gradually increase. In addition, the adhesion of asphalt admixtures to the inner wall of the weighing box may also cause wear and corrosion on the surface of the weighing box, which not only shortens the service life of the equipment, but may also further aggravate the weighing error due to the uneven surface. In order to deal with these problems, some traditional weighing equipment attempts to use manual cleaning, but this method is not only inefficient, but also prone to introducing new errors due to human factors. At the same time, manual cleaning may also cause physical damage to the weighing box, further affecting the accuracy and stability of the equipment.

[0004] On the other hand, traditional weighing equipment needs to perform a clearing operation after each weighing, that is, clearing the weight of the equipment itself to ensure the accuracy of subsequent weighing. However, this process often requires manual participation, which is not only cumbersome to operate, but also prone to errors due to improper operation or negligence. Especially in continuous weighing operations, frequent manual clearing will seriously affect the operating efficiency and increase the risk of weighing errors. For this reason, we provide a precise weighing equipment for asphalt admixtures. Summary of the invention

[0005] In order to solve the above problems, the present invention proposes a precise weighing device for asphalt admixtures to more accurately solve the problems raised in the above background technology.

[0006] The present invention is achieved through the following technical solutions: The invention proposes a precise weighing device for asphalt admixture, comprising a support frame and a gravity sensor installed on the upper surface of the support frame, a weighing box is installed inside the support frame, a mounting frame is fixedly welded to the side of the weighing box, and the mounting frame is placed on the upper end of the gravity sensor, and is used to suspend the weighing box for weighing; A digital display is fixedly installed on the side of the support frame, and the digital display includes a signal processing circuit, a microprocessor and a display, which is used to cooperate with the gravity sensor and realize the weighing function; An L-shaped cardboard is fixedly connected to the surface of the lower port of the weighing box, a shielding plate is slidably connected between two L-shaped cardboards, and a reset component is connected between the L-shaped cardboard and the shielding plate; A cleaning structure is connected to the inner wall of the weighing box; The cleaning structure comprises a scraping frame slidably connected to the inner wall of the weighing box, the inner wall of the scraping frame is fixedly welded with a welding column, and a lifting assembly is connected between the weighing box and the welding column for lifting and lowering the scraping frame; A linkage mechanism is connected between the weighing box and the shielding plate for synchronous operation of the lifting components; A cavity is built between the outer surface and the inner wall of the weighing box, and an oiling mechanism is arranged in the cavity for oiling the inner wall of the weighing box.

[0007] Furthermore, the lifting assembly includes a traction steel wire welded to the periphery of the welding column and a fixed pulley fixedly installed on the upper port surface of the weighing box, and the traction steel wire is wrapped around the periphery of the fixed pulley, and a U-shaped plate is fixedly installed on the side of the weighing box, and the U-shaped plate is rotatably connected to a rotating shaft rod through a bearing, and a winding disk is fixedly connected to the periphery of the rotating shaft rod, and the winding disk is designed to be inside the U-shaped plate, and the end of the traction steel wire is wound around the periphery of the winding disk.

[0008] Furthermore, the linkage mechanism includes a reinforcement block fixedly welded to the side of the weighing box and an L-shaped plate 1 fixedly welded to the lower end surface of the baffle plate, the rotating shaft rod is rotatably connected to the reinforcement block through a bearing, the upper end of the L-shaped plate 1 is fixedly connected to a tooth plate, the side of the weighing box is rotatably connected to a rotating rod through a bearing, the periphery of the rotating rod is fixedly connected to a gear plate, and the gear plate is meshingly connected to the tooth plate, the end of the rotating rod is fixedly connected to a bevel gear 1, the end of the rotating shaft rod is fixedly connected to a bevel gear 2, and the bevel gear 2 is meshingly connected to the bevel gear 1.

[0009] Furthermore, the oiling mechanism includes a sponge body placed on the bottom wall of the cavity and a plug-in rod inserted into the top wall of the cavity. An oil outlet groove is provided on the inner wall of the weighing box, and is designed to be connected to the cavity. An extrusion plate is fixedly connected to the lower end of the plug-in rod, and a gap is provided between the extrusion plate and the cavity. A reciprocating component is connected between the side of the weighing box and the plug-in rod.

[0010] Furthermore, the reset component includes a strip-shaped through groove opened on the side of the L-shaped card plate, a transverse fixed rod is fixedly connected between the two end walls of the strip-shaped through groove, the outer sleeve of the transverse fixed rod is provided with a spring 2, the outer sliding sleeve of the transverse fixed rod is connected with a sliding sleeve block, and the sliding sleeve block is slidably connected to the inner wall of the strip-shaped through groove, two sliding sleeve blocks are arranged on the periphery of one of the transverse fixed rods, and the opposite surfaces of the four sliding sleeve blocks are fixedly connected to the two side surfaces of the baffle plate.

[0011] Furthermore, the reciprocating component includes an L-shaped plate 2 fixedly connected to the upper end of the plug-in rod and a guide sleeve block fixedly connected to the side of the weighing box, the vertical surface of the L-shaped plate 2 is provided with a rectangular through groove, a vertical fixing rod is fixedly connected between the two end walls of the rectangular through groove, a spring 1 is sleeved on the outer periphery of the vertical fixing rod, and the guide sleeve block is slidably connected to the inner wall of the rectangular through groove and slidably sleeved on the outer periphery of the vertical fixing rod.

[0012] Furthermore, a protruding plate is fixedly welded to the side of the weighing box, a skin clearing button is fixedly installed on the upper end surface of the protruding plate, and the skin clearing button is electrically connected to the digital display part, a lap plate is fixedly connected between the two L-shaped plates, a fixed plate is fixedly welded to the periphery of the traction steel wire, and a through hole is opened on the surface of the lap plate for the passage of the traction steel wire.

[0013] Furthermore, an oil filling hole is provided on the upper port surface of the weighing box, and the oil filling hole is designed to be connected with the top wall of the cavity body for adding lubricating oil to the interior of the cavity body. A handle is fixedly connected to the surface of one end of the baffle plate for pulling the baffle plate to move horizontally.

[0014] Furthermore, one end of the second spring is fixedly connected to the end wall of the strip-shaped through groove, and the other end of the second spring is fixedly connected to one end surface of a sliding sleeve block.

[0015] Furthermore, the upper end of the spring 1 is fixedly connected to the end wall of the rectangular through groove, and the lower end of the spring 1 is fixedly connected to the upper end surface of the guide sleeve block.

[0016] Beneficial effects of the present invention: The present invention provides a cleaning structure and a linkage mechanism, so that when the user unloads the weighed asphalt admixture in the weighing box, the user can pull the handle to move the baffle plate to complete the unloading; at the same time, the movement of the baffle plate will drive the L-shaped plate and the tooth plate to move, and the rotating rod drives the bevel gear one to rotate under the meshing action of the tooth plate and the gear plate, and the rotating shaft rod drives the winding disk to rotate under the action of the bevel gear one meshing with the bevel gear two, finally achieving the effect of pulling the scraping frame upward by the traction wire, completing the cleaning of the scraping frame on the inner wall of the weighing box, avoiding the inaccurate weighing in the later stage caused by residual attachments, and achieving a better weighing effect.

[0017] The present invention arranges an oiling mechanism so that the fixed plate will move downward synchronously during the winding process of the traction steel wire. After the scraping frame rises to a certain extent, the fixed plate will contact and push the lap plate to move downward, so that the L-shaped plate 2 drives the connecting rod to move downward, and the extrusion plate squeezes the sponge body, so that the lubricating oil inside the sponge body is squeezed out and flows to the inner wall of the weighing box through the oil outlet groove. In this way, the adhesion of the later asphalt admixture can be reduced, and the wear and corrosion of the asphalt admixture and the scraping frame on the inner wall of the weighing box can be reduced, thereby further ensuring the accuracy of the later weighing.

[0018] The present invention arranges an extending plate and a clearing button so that the overlapping plate will touch and press the clearing button after it is lowered to a certain extent. The clearing button is electrically connected to the digital display part, thereby realizing the clearing of the digital display part, avoiding the influence of its own certain weight on the subsequent weighing accuracy, and once again improving the accuracy of the equipment during weighing. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 A three-dimensional schematic diagram of an embodiment of the present invention; Figure 2 This is a schematic diagram of the structure of an embodiment of the present invention after the L-shaped card plate and the shielding plate are detached; Figure 3 A structural cross-sectional view of an embodiment of the present invention; Figure 4 This is a schematic diagram of the connection structure of an L-shaped card plate and a shielding plate according to an embodiment of the present invention; Figure 5 An embodiment of the present invention Figure 1 A magnified view of the structure at center A; Figure 6 An embodiment of the present invention Figure 1 A magnified view of the structure at B in the middle; Figure 7 An embodiment of the present invention Figure 3 Enlarged view of the structure at C in the middle.

[0020] In the figure: 1, support frame; 2, gravity sensor; 3, weighing box; 4, erection frame; 5, digital display; 6, L-shaped card plate; 7, shielding plate; 8, scraping frame; 9, welding column; 10, traction wire; 11, fixed pulley; 12, U-shaped plate; 13, rotating shaft rod; 14, winding disk; 15, reinforcement block; 16, L-shaped plate 1; 17, card tooth plate; 18, rotating rod; 19, gear plate; 20, bevel gear 1; 21, bevel gear 2; 2 2. Cavity; 23. Sponge; 24. Oil outlet groove; 25. Extrusion plate; 26. Connecting rod; 27. L-shaped plate 2; 28. Guide sleeve block; 29. ​​Rectangular groove; 30. Vertical fixing rod; 31. Spring 1; 32. Overlap plate; 33. Fixed plate; 34. Through hole; 35. Oil filling hole; 36. Extending plate; 37. Clearing button; 38. Strip groove; 39. Horizontal fixing rod; 40. Spring 2; 41. Sliding sleeve block; 42. Handle. DETAILED DESCRIPTION

[0021] In order to more clearly and completely illustrate the technical solution of the present invention, the present invention is further described below in conjunction with the accompanying drawings.

[0022] like Figure 1-Figure 7 As shown, an embodiment of the present invention proposes a precise weighing device for asphalt admixtures, which includes a stable support frame 1 and a gravity sensor 2 precisely mounted on the upper end thereof. A weighing box 3 is cleverly embedded inside the support frame 1, and the weighing box is firmly suspended on the gravity sensor 2 through a stand 4 welded on the side, thereby realizing non-contact suspended weighing and greatly improving the accuracy of weighing. In addition, one side of the support frame 1 is equipped with an advanced digital display 5, which integrates a signal processing circuit, a high-performance microprocessor and an intuitive display, and works closely with the gravity sensor 2 to display and process weighing data in real time; an L-shaped cardboard 6 is cleverly designed below the weighing box 3, and a shielding plate 7 is slidably installed between the two L-shaped cardboards 6, and the shielding plate 7 is connected to the L-shaped cardboard 6 through a precisely designed reset component to ensure rapid reset after operation. The inner wall of the weighing box 3 is also innovatively equipped with a cleaning structure, which includes a slidable scraping frame 8, on which a welding column 9 is welded, and driven by a lifting assembly to lift and lower, so as to efficiently clean the inner wall of the weighing box 3. A linkage mechanism is also cleverly set between the weighing box 3 and the shielding plate 7, so that the lifting assembly can move synchronously when the shielding plate 7 moves. In addition, a cavity 22 is designed between the outer wall and the inner wall of the weighing box 3, and a built-in oiling mechanism is provided to effectively extend the service life of the weighing box 3.

[0023] Furthermore, the core of the lifting assembly is the traction wire 10 on the periphery of the welding column 9 and the fixed pulley 11 configured on the upper end of the weighing box 3. The traction wire 10 passes around the fixed pulley 11, and its end is fixedly connected to the winding disk 14 on the U-shaped plate 12, and the U-shaped plate 12 is connected to the rotating shaft rod 13 through a bearing. As the rotating shaft rod 13 rotates, the winding disk 14 tightens or releases the traction wire 10, thereby driving the lifting of the scraping frame 8.

[0024] Furthermore, the design of the linkage mechanism ensures that the movement of the shielding plate 7 can synchronously trigger the action of the lifting assembly. The mechanism includes a reinforcement block 15 on the side of the weighing box 3, an L-shaped plate 16 at the lower end of the shielding plate 7, and a latch plate 17 connected thereto. A rotating rod 18 is also installed on the side of the weighing box 3, and a gear plate 19 fixed thereon meshes with the latch plate 17. A bevel gear 1 20 is installed at one end of the rotating rod 18, which meshes with a bevel gear 2 21 at the end of the rotating shaft rod 13, forming an efficient transmission system.

[0025] Furthermore, the oiling mechanism is located in the hollow body 22 of the inner wall of the weighing box 3, and is mainly composed of a sponge 23 at the bottom and a plug-in rod 26 at the top. An oil outlet groove 24 is provided on the inner wall of the weighing box 3, which is connected to the hollow body 22. The lower end of the plug-in rod 26 is connected to the extrusion plate 25, and a small gap is maintained with the hollow body 22. The plug-in rod 26 is connected to the side of the weighing box 3 through a reciprocating component. When the scraping frame 8 is raised or lowered, the reciprocating component drives the plug-in rod 26 and the extrusion plate 25 to move, and the sponge 23 is squeezed to release lubricating oil to the inner wall of the weighing box 3.

[0026] Furthermore, the reset component ensures that the shielding plate 7 can automatically return to the initial position after moving. The component includes a strip-shaped through slot 38 on the side of the L-shaped card plate 6, a transverse fixing rod 39, and a spring 40 sleeved on the periphery of the transverse fixing rod 39. A sliding sleeve block 41 is slidably mounted on the periphery of the transverse fixing rod 39, and the sliding sleeve block 41 is fixedly connected to both sides of the shielding plate 7 to form a reset mechanism.

[0027] Furthermore, the reciprocating component is designed to drive the plug-in rod 26 and the extrusion plate 25 of the oiling mechanism to reciprocate. It includes an L-shaped plate 27 at the upper end of the plug-in rod 26, a guide sleeve block 28 on the side of the weighing box 3, and a rectangular through groove 29 and a vertical fixing rod 30 connecting the two. A spring 31 is sleeved on the vertical fixing rod 30 to provide a reset force for the reciprocating motion.

[0028] Furthermore, a protruding plate 36 is installed on the side of the weighing box 3, on which a clearing button 37 is provided, which is electrically connected to the digital display 5, so as to automatically clear after each weighing. A lap plate 32 is installed between the L-shaped plates 27 to provide a passage for the traction wire 10. In addition, an oil filling hole 35 is provided at the upper end of the weighing box 3 to facilitate the addition of lubricating oil to the cavity 22, and a handle 42 is installed at one end of the shielding plate 7 to facilitate manual operation.

[0029] Furthermore, one end of spring 2 40 is fixed to the end wall of the strip through groove 38, and the other end is connected to the sliding sleeve block 41, ensuring the stable resetting of the baffle plate 7; the upper end of spring 1 31 is fixed to the end wall of the rectangular through groove 29, and the lower end is connected to the guide sliding sleeve block 28, providing the necessary resetting force for the reciprocating motion of the oiling mechanism.

[0030] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A precision weighing device for asphalt admixture, comprising a support frame (1) and a gravity sensor (2) mounted on the upper surface of the support frame (1), characterized in that: A weighing box (3) is installed inside the support frame (1), a mounting frame (4) is fixedly welded to the side of the weighing box (3), and the mounting frame (4) is placed on the upper end of the gravity sensor (2) for hanging the weighing box (3) for weighing; A digital display component (5) is fixedly mounted on the side of the support frame (1), and the digital display component (5) comprises a signal processing circuit, a microprocessor and a display, and is used to cooperate with the gravity sensor (2) and realize a weighing function; An L-shaped card plate (6) is fixedly connected to the surface of the lower port of the weighing box (3), a shielding plate (7) is slidably connected between two of the L-shaped card plates (6), and a reset component is connected between the L-shaped card plate (6) and the shielding plate (7); The inner wall of the weighing box (3) is connected to a cleaning structure; The cleaning structure comprises a scraping frame (8) slidably connected to the inner wall of the weighing box (3), a welding column (9) being fixedly welded to the inner wall of the scraping frame (8), and a lifting assembly being connected between the weighing box (3) and the welding column (9) for lifting and lowering the scraping frame (8); A linkage mechanism is connected between the weighing box (3) and the shielding plate (7) for synchronous operation of the lifting components; A cavity (22) is built in between the outer surface and the inner wall of the weighing box (3), and an oiling mechanism is provided in the cavity (22) for applying oil to the inner wall of the weighing box (3).

2. The precise weighing device for asphalt admixture according to claim 1, characterized in that: The lifting assembly comprises a traction wire (10) welded to the periphery of a welding column (9) and a fixed pulley (11) fixedly mounted on the surface of an upper port of a weighing box (3), wherein the traction wire (10) is wrapped around the periphery of the fixed pulley (11), a U-shaped plate (12) is fixedly mounted on the side of the weighing box (3), the U-shaped plate (12) is rotatably connected to a rotating shaft rod (13) via a bearing, a winding disk (14) is fixedly connected to the periphery of the rotating shaft rod (13), and the winding disk (14) is located inside the U-shaped plate (12), and the end of the traction wire (10) is wound around the periphery of the winding disk (14).

3. The precise weighing device for asphalt admixture according to claim 2, characterized in that: The linkage mechanism comprises a reinforcement block (15) fixedly welded to the side of the weighing box (3) and an L-shaped plate (16) fixedly welded to the lower end surface of the shielding plate (7); the rotating shaft rod (13) is rotatably connected to the reinforcement block (15) via a bearing; the upper end of the L-shaped plate (16) is fixedly connected to a latch plate (17); the side of the weighing box (3) is rotatably connected to a rotating rod (18) via a bearing; the outer periphery of the rotating rod (18) is fixedly connected to a gear plate (19), and the gear plate (19) is meshingly connected to the latch plate (17); the end of the rotating rod (18) is fixedly connected to a bevel gear (20); the end of the rotating shaft rod (13) is fixedly connected to a bevel gear (21), and the bevel gear (21) is meshingly connected to the bevel gear (20).

4. The precise weighing device for asphalt admixture according to claim 2, characterized in that: The oiling mechanism comprises a sponge (23) placed on the inner bottom wall of the cavity (22) and a plug-in rod (26) inserted into the inner top wall of the cavity (22); an oil outlet groove (24) is provided on the inner wall of the weighing box (3) and is designed to be connected with the cavity (22); a squeeze plate (25) is fixedly connected to the lower end of the plug-in rod (26), and a gap is provided between the squeeze plate (25) and the cavity (22); and a reciprocating component is connected between the side of the weighing box (3) and the plug-in rod (26).

5. The precise weighing device for asphalt admixture according to claim 1, characterized in that: The reset component comprises a strip-shaped through groove (38) formed on the side of the L-shaped card plate (6); a transverse fixing rod (39) is fixedly connected between the two end walls of the strip-shaped through groove (38); a spring (40) is sleeved on the outer periphery of the transverse fixing rod (39); a sliding sleeve block (41) is slidably sleeved on the outer periphery of the transverse fixing rod (39); and the sliding sleeve block (41) is slidably connected to the inner wall of the strip-shaped through groove (38); two sliding sleeve blocks (41) are arranged on the outer periphery of one transverse fixing rod (39); and opposite surfaces of the four sliding sleeve blocks (41) are fixedly connected to the two side surfaces of the shielding plate (7).

6. The precise weighing device for asphalt admixture according to claim 4, characterized in that: The reciprocating component comprises an L-shaped plate 2 (27) fixedly connected to the upper end of the plug-in rod (26) and a guide sleeve block (28) fixedly connected to the side of the weighing box (3); a rectangular through slot (29) is provided on the vertical surface of the L-shaped plate 2 (27); a vertical fixing rod (30) is fixedly connected between the two end walls of the rectangular through slot (29); a spring 1 (31) is sleeved on the outer periphery of the vertical fixing rod (30); the guide sleeve block (28) is slidably connected to the inner wall of the rectangular through slot (29) and slidably sleeved on the outer periphery of the vertical fixing rod (30).

7. The precise weighing device for asphalt admixture according to claim 6, characterized in that: A protruding plate (36) is fixedly welded to the side of the weighing box (3), a skin-clearing button (37) is fixedly installed on the upper end surface of the protruding plate (36), and the skin-clearing button (37) is electrically connected to the digital display component (5), a lap plate (32) is fixedly connected between the two L-shaped plates (27), a fixed plate (33) is fixedly welded to the periphery of the traction wire (10), and a through hole (34) is opened on the surface of the lap plate (32) for the passage of the traction wire (10).

8. The precise weighing device for asphalt admixture according to claim 1, characterized in that: An oil filling hole (35) is provided on the upper end surface of the weighing box (3), and the oil filling hole (35) is designed to be connected to the top wall of the cavity (22) for adding lubricating oil to the interior of the cavity (22). A handle (42) is fixedly connected to one end surface of the baffle plate (7) for pulling the baffle plate (7) for translation.

9. The precise weighing device for asphalt admixture according to claim 5, characterized in that: One end of the second spring (40) is fixedly connected to the end wall of the strip-shaped through groove (38), and the other end of the second spring (40) is fixedly connected to one end surface of a sliding sleeve block (41).

10. The precise weighing device for asphalt admixture according to claim 6, characterized in that: The upper end of the spring one (31) is fixedly connected to the end wall of the rectangular through groove (29), and the lower end of the spring one (31) is fixedly connected to the upper end surface of the guide sleeve block (28).

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