Mud scraping mechanism of road roller

Abstract

The utility model relates to the technical field of road rollers, in particular to a mud scraping mechanism of a road roller, which comprises a rack, a first scraping plate, a second scraping plate and a driving mechanism, the driving mechanism is used for driving the first scraping plate and the second scraping plate to move, and the abrasion between the scraping plates and the surface of a steel wheel is avoided, so that the service life of the scraping plates is prolonged, and the scraping effect of the scraping plates is improved.

Description

Technical Field

[0001] This utility model relates to the field of road roller technology, and in particular to a sludge scraping mechanism for a road roller. Background Technology

[0002] Traditional road roller scrapers have the following drawbacks: single scraper structures do not clean thoroughly, easily leading to material buildup on the steel wheel surface, affecting compaction quality; fixed scrapers cannot adapt to the cleaning needs of different viscous materials; and hard scrapers are prone to damaging the steel wheel. Chinese Patent CN220952804U discloses a road roller, specifically a cleaning structure including a first connecting frame installed within the road roller frame, with a first cleaning plate connected to the bottom of the first connecting frame. The cleaning end of the first cleaning plate is close to the surface of the roller drum. The cleaning structure also includes a second connecting frame installed at the bottom of the road roller frame. A second cleaning plate is connected to the bottom of the frame. The cleaning end of the second cleaning plate is also close to the surface of the roller. This patent uses double scrapers to scrape the steel wheel. Although it can clean the surface of the steel wheel well, the scraper is always in contact with the surface of the steel wheel. During the operation of the roller, due to the friction between the scraper and the steel wheel, the gap between the scraper and the surface of the steel wheel increases. As a result, the scraping effect of the scraper decreases when the roller is working. Therefore, there is an urgent need for a scraping mechanism for rollers that can prevent wear between the scraper and the surface of the steel wheel during the roller's movement when it is not in operation, thereby extending the service life of the scraper and improving the scraping effect. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide a scraping mechanism for a road roller, which can prevent wear between the scraper and the steel wheel surface during the non-operational movement of the road roller, thereby extending the service life of the scraper and improving the scraping effect of the scraper.

[0004] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is: a sludge scraping mechanism for a road roller, comprising:

[0005] frame;

[0006] Steel wheels, which are rotatably connected within the frame;

[0007] The rack is connected to both sides of the top of the frame;

[0008] The first scraper is located on the opposite side of the steel wheel in the X direction and is movably connected to the frame in the X direction or in the opposite direction of the X direction.

[0009] The second scraper is located on the X-direction side of the steel wheel and is movably connected to the frame in the X-direction or in the opposite direction of the X-direction.

[0010] The drive mechanism is used to drive the first scraper and the second scraper to move.

[0011] The drive mechanism drives the first scraper and the second scraper to switch between the first state and the second state.

[0012] In the first state, the first scraper abuts against the surface of the steel wheel on the opposite side in the X direction, and the second scraper abuts against the surface of the steel wheel on the X direction.

[0013] Second state; the first scraper is on the surface of the opposite side of the steel wheel in the X direction, and the second scraper is on the surface of the steel wheel in the X direction.

[0014] Furthermore, the drive mechanism includes a gear, a handwheel, a rotating shaft, a first rack, a second rack, a first guide rail, a second guide rail, a side plate, a first connecting block, a second connecting block, a first connecting rod, a second connecting rod, and an oval guide rail;

[0015] Two side plates are connected to the frame along the Y direction. The first and second guide rails are located between the two side plates and are mirror images of each other. The first and second guide rails are parallel to the X direction. The first rack is slidably connected to the first guide rail, and the second rack is interactively connected to the second guide rail. The gear is rotatably connected between the first and second guide rails and meshes with the first and second racks. The first rack has an oval guide rail with the conveying direction in the Y direction. A top plate is mounted on the two side plates. A rotating shaft rotates vertically through the shaft. A handwheel is connected above the rotating shaft. One end of the first connecting rod is pivotally connected to the bottom end of the rotating shaft. The second connecting rod is vertically connected to the lower part of the other end of the first connecting rod and is located inside the oval guide rail. The first connecting block is connected to the opposite side of the first rack in the X direction. The first scraper is connected to the first connecting block, and the second connecting block is connected to the X direction side of the second rack. The second scraper is connected to the second connecting block.

[0016] Furthermore, the first scraper includes a scraper body, a first spring, and a first fixed seat. The first fixed seat is inclinedly connected to the first connecting block. A limiting groove is provided on one side of the first fixed seat in the X direction. Several first springs are connected in the limiting groove along the Y direction. The axial direction of the first springs is parallel to the inclination of the second fixed seat. One end of the scraper body is inclinedly connected to the first spring. An opening is provided on the scraper body.

[0017] Furthermore, the second scraper includes an arc-shaped plate, a second spring, and a second fixed seat. The arc-shaped plate is rotatably connected to the lower part of the second fixed seat, and the axis of rotation is Y. One end of the second spring is connected to the middle part of the side of the arc-shaped plate away from the surface of the steel wheel, and the other end of the second spring is connected to the lower part of the second fixed seat. The second spring is inclined.

[0018] Furthermore, the sludge scraping mechanism of the road roller also includes a pin. The handwheel is provided with a first through hole and a second through hole that match the pin. In the first state, the pin is engaged with the first through hole, and in the second state, the pin is engaged with the second through hole.

[0019] The beneficial effects of this utility model are as follows: Compared with the prior art, by setting up a frame, a first scraper, a second scraper and a drive mechanism, and using the drive mechanism to drive the first scraper and the second scraper to move, wear between the scraper and the steel wheel surface is avoided, thereby extending the service life of the scraper and improving the scraping effect of the scraper. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the sludge scraping mechanism of a road roller according to a specific embodiment of the present utility model;

[0021] Figure 2 This is a schematic diagram of the sludge scraping mechanism of a road roller according to a specific embodiment of the present utility model;

[0022] Figure 3 for Figure 2 Enlarged view of part A;

[0023] Figure 4 A top view of a sludge scraping mechanism of a road roller according to a specific embodiment of this utility model;

[0024] Figure 5 for Figure 4 A-direction cross-section view.

[0025] Label Explanation

[0026] 1. Frame; 11. Rack;

[0027] 2. Steel wheel;

[0028] 3. First scraper; 31. Scraper body; 311. Opening; 32. First spring; 33. First fixing seat; 331. Limiting groove;

[0029] 4. Second scraper; 41. Arc-shaped plate; 42. Second spring; 43. Second fixing seat;

[0030] 5. Drive mechanism; 51. Gear; 52. Handwheel; 521. First through hole; 522. Second through hole; 53. Rotating shaft; 531. First connecting rod; 532. Second connecting rod; 54. First rack; 541. Oval track; 55. Second rack; 56. First guide rail; 57. Second guide rail; 58. Side plate; 59. First connecting block; 60. Second connecting block;

[0031] 6. Pins. Detailed Implementation

[0032] To explain in detail the technical content, objectives, and effects of this utility model, the following description is provided in conjunction with the embodiments and accompanying drawings.

[0033] Please refer to Figures 1 to 5 A sludge scraping mechanism for a road roller, comprising:

[0034] Framework 1;

[0035] Steel wheel 2 is rotatably connected within frame 1;

[0036] Frame 11, which is connected to both sides of the top of frame 1;

[0037] The first scraper 3 is located on the opposite side of the steel wheel 2 in the X direction, and the first scraper 3 is movably connected to the frame 11 in the X direction or in the opposite direction of the X direction.

[0038] The second scraper 4 is located on the X-direction side of the steel wheel 2 and is movably connected to the frame 11 along the X-direction or in the opposite direction of the X-direction.

[0039] Drive mechanism 5, which is used to drive the first scraper 3 and the second scraper 4 to move;

[0040] Drive mechanism 5 drives the first scraper 3 and the second scraper 4 to switch between the first state and the second state;

[0041] In the first state, the first scraper 3 abuts against the surface of the steel wheel 2 on the opposite side of the X direction, and the second scraper 4 abuts against the surface of the steel wheel 2 on the X direction.

[0042] Second state; the first scraper 3 is away from the X-direction opposite side of the steel wheel 2, and the second scraper 4 is away from the X-direction side of the steel wheel 2.

[0043] In the above embodiments, when the road roller needs to operate, the drive mechanism 5 drives the first scraper 3 to abut against the X-direction opposite side surface of the steel wheel 2, and the second scraper 4 to abut against the X-direction side surface of the steel wheel 2, thereby scraping mud off the surface of the steel wheel 2. When not in operation, the drive mechanism 5 drives the first scraper 3 and the second scraper 4 to move, so that the first scraper 3 moves away from the X-direction opposite side surface of the steel wheel 2, and the second scraper 4 moves away from the X-direction side surface of the steel wheel 2, thereby avoiding friction between the first scraper 3 and the second scraper 4 and the surface of the steel wheel 2. Compared with the prior art, by setting up the frame 11, the first scraper 3, the second scraper 4 and the drive mechanism 5, and using the drive mechanism 5 to drive the first scraper 3 and the second scraper 4 to move, wear between the scraper and the surface of the steel wheel 2 is avoided, thereby extending the service life of the scraper and improving the scraping effect of the scraper.

[0044] As an optional implementation, the drive mechanism 5 includes a gear 51, a handwheel 52, a rotating shaft 53, a first rack 54, a second rack 55, a first guide rail 56, a second guide rail 57, a side plate 58, a first connecting block 59, a second connecting block 60, a first connecting rod 531, a second connecting rod 532, and an oval guide rail.

[0045] Two side plates 58 are connected to the frame 11 along the Y-direction. A first guide rail 56 and a second guide rail 57 are located between the two side plates 58, mirror images of each other. The first and second guide rails are parallel to the X-direction. A first rack 54 is slidably connected to the first guide rail 56, and a second rack 55 is interactively connected to the second guide rail 57. A gear 51 is rotatably connected between the first guide rail 56 and the second guide rail 57, meshing with the first rack 54 and the second rack 55. The first rack 54 is equipped with an oval guide rail, whose conveying direction is... In the Y direction, a top plate is mounted on both side plates 58. A rotating shaft 53 rotates through the shaft in the vertical direction. A handwheel 52 is connected above the rotating shaft 53. One end of the first connecting rod 531 is pivotally connected to the bottom end of the rotating shaft 53. The second connecting rod 532 is vertically connected to the lower part of the other end of the first connecting rod 531. The second connecting rod 532 is located inside the oval guide rail. The first connecting block 59 is connected to the opposite side of the first rack 54 in the X direction. The first scraper 3 is connected to the first connecting block 59. The second connecting block 60 is connected to the X-direction side of the second rack 55. The second scraper 4 is connected to the second connecting block 60.

[0046] In the above embodiments, by rotating the handwheel 52, the first connecting rod 531 makes a circular motion, thereby causing the second connecting rod 532 to slide into the oval track 541, which in turn drives the first rack 54 to move. The movement of the first rack 54 in turn drives the gear 51 to rotate, and the gear 51 drives the second rack 55 to move, thereby causing the first rack 54 and the second rack 55 to move in opposite directions. This allows the first scraper 3 and the second scraper 4 to move away from the surface of the steel wheel 2. The reciprocating movement of the first scraper 3 and the second scraper 4 can be achieved through a simple rack, gear 51, handwheel 52, first connecting rod 531, second connecting rod 532, rotating shaft 53, and oval guide rail, which is more cost-effective than the prior art that uses cylinders and double-acting screws.

[0047] As an optional implementation, the first scraper 3 includes a scraper body 31, a first spring 32, and a first fixing seat 33. The first fixing seat 33 is inclinedly connected to the first connecting block 59. A limiting groove 331 is provided on one side of the first fixing seat 33 in the X direction. A plurality of first springs 32 are connected in the limiting groove 331 along the Y direction. The axial direction of the first springs 32 is parallel to the inclination of the first fixing seat 33. One end of the scraper body 31 is inclinedly connected to the first spring 32. An opening 311 is provided on the scraper body 31.

[0048] In the above embodiments, by setting an inclined first fixed seat 33, a first spring 32 and an inclined scraper body 31, it is possible to compensate for the fact that one end of the scraper body 31 is in real time in close contact with the surface of the steel wheel 2 during the operation of the road roller, thereby improving the scraping effect. Setting an inclined scraper body 31 allows the scraped material to fall into the ground from the opening 311.

[0049] As an optional implementation, the second scraper 4 includes an arc-shaped plate 41, a second spring 42, and a second fixed seat 43. The arc-shaped plate 41 is rotatably connected to the lower part of the second fixed seat 43, and the axis of rotation is Y. One end of the second spring 42 is connected to the middle part of the side of the arc-shaped plate 41 away from the surface of the steel wheel 2, and the other end of the second spring 42 is connected to the lower part of the second fixed seat 43. The second spring 42 is inclined.

[0050] In the above embodiments, by providing the second spring 42, the arc plate, and the second fixing seat 43, it is possible to further ensure that one end of the arc plate 41 is in close contact with the surface of the steel wheel 2, thereby improving the scraping effect.

[0051] As an optional implementation, the sludge scraping mechanism of the road roller also includes a pin 6. The handwheel 52 is provided with a first through hole 521 and a second through hole 522 that match the pin 6. In a first state, the pin 6 is engaged with the first through hole 521, and in a second state, the pin 6 is engaged with the second through hole 522.

[0052] In the above embodiments, the top plate is provided with a groove that matches the first through hole 521 and the second through hole 522. By setting the first through hole 521, the second through hole 522, the pin 6 and the groove to cooperate, the handwheel 52 can be prevented from rotating in the first state and the second state, thereby ensuring the stability of the first scraper 3 and the second scraper 4.

[0053] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent modifications made based on the content of this utility model specification and drawings, or direct or indirect applications in related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A mud scraping mechanism of a road roller, characterized by comprising: The utility model relates to a kind of road roller's mud scraping mechanism, including: Frame; Steel wheel, steel wheel is rotatably connected in frame; Machine frame, machine frame is connected on the top of frame two sides; First scraper, first scraper is located in the X direction reverse side of steel wheel, first scraper is movably connected in the X direction or the X direction reverse of machine frame; Second scraper, second scraper is located in the X direction side of steel wheel, second scraper is movably connected in the X direction or the X direction reverse of machine frame; Driving mechanism, driving mechanism is used to drive first scraper and second scraper move; Driving mechanism drives first scraper and second scraper switch in first state and second state; First state, first scraper is abutted on the X direction reverse side surface of steel wheel, second scraper is abutted on the X direction side surface of steel wheel; Second state;First scraper is away from the X direction reverse side surface of steel wheel, second scraper is away from the X direction side surface of steel wheel.

2. The mud scraping mechanism of the road roller according to claim 1, characterized by Driving mechanism includes gear, hand wheel, pivot, first rack, second rack, first guide rail, second guide rail, side plate, first connecting block, second connecting block, first connecting rod, second connecting rod and waist round guide rail; Two side plates are connected on the machine frame along the Y direction side, first guide rail and second guide rail are located between two side plates, first guide rail and second guide rail are mirror image, first guide rail and second guide rail are parallel to the X direction, first rack is slidably connected on first guide rail, second rack is interactively connected on second guide rail, gear is rotatably connected between first guide rail and second guide rail, gear is engaged with first rack and second rack, first rack is equipped with waist round guide rail, the conveying direction of waist round guide rail is Y direction, top plate is arranged on two side plates, pivot is vertically rotatably penetrated, hand wheel is connected above pivot, one end of first connecting rod is pivotally connected to the bottom end of pivot, second connecting rod is vertically connected to the lower part of the other end of first connecting rod, second connecting rod is located in waist round guide rail, first connecting block is connected to the X direction reverse side of first rack, first scraper is connected with first connecting block, second connecting block is connected to the X direction side of second rack, second scraper is connected with second connecting block.

3. The mud scraping mechanism of the road roller according to claim 1, characterized by First scraper includes scraper body, first spring and first fixing seat, first fixing seat is obliquely connected to first connecting block, the X direction side of first fixing seat is equipped with limiting slot, a plurality of first springs are connected in limiting slot along the Y direction, the axial direction of first spring is parallel to the slope of first fixing seat, one end of scraper body is obliquely connected to first spring, and opening is arranged on scraper body.

4. The mud scraping mechanism of the road roller according to claim 1, characterized by Second scraper includes arc plate, second spring and second fixing seat, arc plate is rotatably connected to the lower part of second fixing seat, the axial direction of rotation is Y direction, one end of second spring is connected to the middle part of the side away from the surface of steel wheel of arc plate, the other end of second spring is connected to the lower part of second fixing seat, and second spring is obliquely arranged.

5. The mud scraping mechanism of the road roller according to claim 1, characterized by The mud scraping mechanism of the road roller further includes a pin shaft, the hand wheel is provided with a first through hole and a second through hole matched with the pin shaft, in the first state, the pin shaft is matched with the first through hole, and in the second state, the pin shaft is matched with the second through hole.

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