CN109322231B

CN109322231B - Road surface leveling device for road roller

Info

Publication number: CN109322231B
Application number: CN201811266362.XA
Authority: CN
Inventors: 彭洪波; 马建锋; 曹云玲; 钱栋栋
Original assignee: Individual
Current assignee: Individual
Priority date: 2018-10-29
Filing date: 2018-10-29
Publication date: 2023-04-25
Anticipated expiration: 2038-10-29
Also published as: CN109322231A

Abstract

The invention provides a road surface leveling device for a road roller, which relates to the technical field of road construction equipment and comprises a vibrating rake, a first impact mechanism and a pushing mechanism; the vibrating rake is positioned at the front side of the grinding wheel frame, a connecting rod is connected between the vibrating rake and the frame, the pushing mechanism comprises an eccentric block, a front vertical rod and a rear vertical rod, the front vertical rod and the rear vertical rod are pushed by the eccentric block, a sliding chute is arranged at the bottom of the frame, a sliding block is connected in the sliding chute in a sliding manner, the sliding block is connected with the front vertical rod and the rear vertical rod, a rack is arranged on the sliding block, a gear is meshed with the rack, and the gear is coaxially connected with a winding column; the first striking mechanism comprises a first fixed sleeve positioned at the end part of the vibrating harrow, a first striking block is connected in a sliding manner in the first fixed sleeve, and a first elastic piece is connected between the first striking block and the first fixed sleeve. The broken stone or the soil is vibrated by rolling of the grinding wheel, gaps between the broken stone and the soil are reduced by vibration, the roadbed is more compact, and the rolling effect of the road roller is enhanced.

Description

Road surface leveling device for road roller

Technical Field

The invention relates to the technical field of road construction equipment, in particular to a road surface leveling device for a road roller.

Background

The road roller is widely applied to road construction operation, is mainly used for compacting the roadbed of a road, and rolls the roadbed through the self weight so that the foundation is more stable. When the road is repaired, when the road foundation is paved with soil or broken stone, the paved soil or broken stone is leveled manually, so that the soil or broken stone is uniformly distributed, but the mode is time-consuming and labor-consuming, and the construction progress is affected.

The Chinese patent with the publication number of CN201803723U discloses a road roller leveling device, which comprises a lifting device, a left-right moving device and a front-back vibrating device, and can drive a plow harrow to finish leveling soil or broken stone through the left-right moving device and the front-back vibrating device, so that the soil or broken stone is uniformly paved on a roadbed.

However, the above scheme has the following technical problems: 1. when the plow harrow needs to be moved left and right, the soil or broken stone at the other side is not leveled, namely, the leveling is insufficient; 2. the left-right moving device and the front-back vibrating device both adopt new power sources, which wastes resources and has large cost investment.

Disclosure of Invention

The invention aims at least solving the technical problems in the prior art, and particularly provides a road surface leveling device for a road roller so as to fully level a roadbed.

In order to achieve the above object, the present invention provides a road surface leveling device for a road roller, including a vibrating rake, a first striking mechanism, and a pushing mechanism;

the vibration rake is positioned at the front side of the frame, and a connecting rod is connected between the vibration rake and the frame;

the pushing mechanism comprises a front vertical rod and a rear vertical rod which are respectively connected to the front half part and the rear half part of the right side surface of the grinding wheel in a sliding way, an eccentric block positioned at the eccentric position of the grinding wheel is arranged between the front vertical rod and the rear vertical rod, the front vertical rod and the rear vertical rod are both intermittently pushed by the eccentric block, a sliding block is connected between the front vertical rod and the rear vertical rod, a sliding chute which is transversely arranged is arranged at the bottom of the frame, the sliding block is connected in the sliding chute in a sliding way, a rack is fixedly arranged on the right side of the sliding block, a gear which is rotationally connected to the frame is meshed with the rack, and the gear is coaxially connected with a winding column;

the first striking mechanism is including being located the first fixed cover on vibration harrow right side, the left side of first fixed cover is open structure, sliding connection has the first striking piece that is used for striking vibration harrow to produce vibration in the first fixed cover, be connected with first elastic component between first striking piece and the first fixed cover, be connected with first traction element between first striking piece and the wrapping post, the right part of first fixed cover is equipped with the through wires hole that supplies first traction element to pass, first striking piece is equipped with the lockhole, first fixed cover is equipped with the first bolt that is used for locking first striking piece, first bolt intermittent type inserts in the lockhole of first striking piece, be connected with first reset piece between first bolt and the first fixed cover, first reset piece is used for first bolt reinsertion in the lockhole, the other end of first bolt is connected with first catch bar, the first catch bar other end stretches forward and can be pushed by the montant interval before, the bottom of first fixed cover is equipped with down fixed spout, sliding connection is in the fixed spout down.

The eccentric block is used for driving the front vertical rod and the rear vertical rod to move back and forth in the horizontal direction through rotation of the grinding wheel, the rear vertical rod is used for driving the front vertical rod to push the first push rod, the first push rod is used for driving the first bolt to be pulled out of the first jack, and the first elastic piece is used for pushing the first impact block to collide with the vibration harrow. The first impact block is used for impacting the vibration harrow to generate vibration, and the vibration harrow reduces gaps between soil or broken stones through vibration. The cooperation of rack and gear is used for driving the wrapping post through the removal of slider and rotates, and the wrapping post is used for winding or loosening first traction piece, and first traction piece is used for drawing first striking piece back in the first fixed cover, and first fixed cover is used for restricting the direction of motion of first striking piece.

In the scheme, the method comprises the following steps: the second impact mechanism comprises a second fixing sleeve, a second impact block, a second bolt, a second elastic piece, a second pushing rod and a second traction piece, and the second impact mechanism and the first impact mechanism are basically identical in composition, structure and working mode, and the difference is that: the second impact mechanism and the first impact mechanism are arranged front and back to form an alternate impact vibration rake, the second pushing rods and the first pushing rods are staggered up and down and are arranged front and back, an upper fixing chute is arranged on the top of the frame in the transverse direction, the second pushing rods are connected in the upper fixing chute in a sliding mode, the rear ends of the first pushing rods are located at the rear sides of the front vertical rods and are intermittently pushed backwards by the front vertical rods, the rear ends of the second pushing rods are located at the front sides of the front vertical rods and are intermittently pushed forwards by the front vertical rods, the second traction pieces are connected between the second impact blocks and the sliding blocks, and threading holes for the second traction pieces to penetrate through are formed in the right portions of the second fixing sleeves.

The second striking mechanism can strike the vibratory rake alternately with the first striking mechanism, increasing the frequency of striking the vibratory rake.

In the scheme, the method comprises the following steps: and a bearing plate is arranged at one end of the vibrating harrow, which is close to the first fixing sleeve. The stress area of the vibration harrow is increased, and the situation that the first impact block or the second impact block cannot impact the vibration harrow is avoided.

In the scheme, the method comprises the following steps: pulleys are arranged at the two threading holes. The abrasion of the first traction piece and the second traction piece can be reduced, the service life is prolonged, and the cost is saved.

In the scheme, the method comprises the following steps: the connecting rod is rotatably connected to the frame. Can be when not needing to vibrate through rotating the vibration harrow and withdraw, make the road roller can walk on normal road bed, avoid normal road bed to be destroyed by the vibration harrow.

In the scheme, the method comprises the following steps: the first impact block and the second impact block are provided with travelling wheels at the bottoms, and the travelling wheels are always positioned in the corresponding fixing sleeves. Friction force can be reduced, energy consumption of the first impact block and the second impact block in the motion process is reduced, and impact force is increased.

In the scheme, the method comprises the following steps: the sliding chute, the upper fixed chute and the lower fixed chute are dovetail grooves, and the sliding block, the first pushing rod and the second pushing rod are dovetail-shaped. The stability of connection is increased, and falling-out is avoided.

In summary, due to the adoption of the technical scheme, the beneficial effects of the invention are as follows:

1. the broken stone or soil can be driven to vibrate through vibration of the vibration rake, so that gaps among the broken stone or the soil can be filled with the broken stone, the roadbed is more compact, and the rolling effect of the road roller is enhanced.

2. The oversized stone is screened out through the rake teeth of the vibrating rake, so that the roadbed cannot be compacted due to oversized gaps of the stone is avoided, and meanwhile, the abrasion of the grinding wheel can be avoided.

3. The rotation of the grinding wheel is reasonably utilized to enable the vibration harrow to vibrate, a power source is not required to be introduced, and cost is saved.

4. The vibration harrow has small amplitude, and can only lead the broken stones to be misplaced without the broken stones being vibrated and flown, and compared with the harrow which does not generate vibration, the vibration harrow is less prone to leaving trace of the movement of the vibration harrow, so that the roadbed is smoother.

Drawings

FIG. 1 is a schematic illustration of the present invention;

FIG. 2 is a right side view of FIG. 1;

FIG. 3 is a schematic view of a first impact mechanism, a second impact mechanism, a rack and pinion;

fig. 4 isbase:Sub>A cross-sectional view atbase:Sub>A-base:Sub>A in fig. 2.

Detailed Description

Referring to fig. 1-4, a road surface leveling device for a road roller includes a first impact mechanism, a second impact mechanism, a pushing mechanism and a vibrating rake 2 located on the front side of the road roller, wherein the top of the vibrating rake 2 is hinged on a frame 11 through a connecting rod 21, the connecting rod 21 can rotate around a hinge point at the upper end under the action of an external force, so as to drive the vibrating rake 2 to move to realize the assembly and the replacement of a working state and a folding state (the working state is shown in fig. 1, and the rotation direction of the connecting rod 21 is shown by an arrow in fig. 1).

The right end of the vibrating harrow 2 is connected with a bearing plate 22, so that the first striking mechanism and the second striking mechanism strike alternately from the right end of the vibrating harrow 2. The right side of the receiving plate 22 is provided with a first fixing sleeve 31 and a second fixing sleeve 41, and the first fixing sleeve 31 and the second fixing sleeve 41 are arranged back and forth and fixed on the frame 11. The left sides of the first fixing sleeve 31 and the second fixing sleeve 41 are both in an opening structure, and the right side is in a closed shape.

The first striking mechanism is composed of a first fixed sleeve 31, a first striking block 32, a first latch 33, a first elastic member 34, and a first push rod 36. The first striking block 32 is slidably connected in the first fixing sleeve 31, and the first striking block 32 is used for striking the vibrating rake 2 to generate vibration. A first elastic member 34 is connected between the first striking block 32 and the first fixing sleeve 31, and is used for pushing the first striking block 32 to extend out from the left side of the first fixing sleeve 31 so as to strike the vibrating rake 2. The first fixing sleeve 31 is provided with a first bolt 33, when the first bolt 33 vertically passes through the side wall of the first fixing sleeve 31 and is inserted into a lock hole preset in the first impact block 32, locking of the first impact block 32 is achieved, and when the first bolt 33 exits from the lock hole preset in the first impact block 32, unlocking is achieved. A first reset member (first reset member is not shown in the figure) is connected between the first latch 33 and the first fixing sleeve 31, and is used for inserting the first latch 33 into a lock hole preset in the first impact block 32. The rear end of the first latch 33 is connected to a first push rod 36 for driving the first latch 33 to withdraw from the first striker 32. The bottom of the frame 11 is transversely provided with a lower fixed chute, and a first pushing rod 36 is slidably connected in the lower fixed chute for guiding the forward and backward movement of the first pushing rod 36.

The second striking mechanism is composed of a second fixed sleeve 41, a second striking block 42, a second latch 43, a second elastic member 44, and a second push rod 46. The second impact mechanism is substantially identical to the first impact mechanism in composition, structure and manner of operation, except that: the first striking mechanism and the second striking mechanism are arranged front and back to alternately strike the vibrating harrow 2, the top of the frame 11 is transversely provided with an upper fixed chute, and the second pushing rod 46 is slidably connected in the upper fixed chute and guides the forward and backward movement of the second pushing rod 46. The first pushing rod 36 and the second pushing rod 46 are staggered up and down and in tandem so as to facilitate overall arrangement.

Preferably, the bottom of the first impact block 32 and the bottom of the second impact block 42 are provided with travelling wheels (the travelling wheels are not shown in the figure), and the travelling wheels are always positioned in the corresponding fixing sleeves during the working process, so that friction between the impact blocks and the fixing sleeves is reduced, and consumption of kinetic potential energy is avoided as much as possible. The second reset piece and the first reset piece can adopt tension springs.

The striking mechanism comprises a front vertical rod 51 which is respectively and slidably connected to the front half part of the right side surface of the grinding wheel 1, a rear vertical rod 52 which is slidably connected to the rear half part of the right side surface of the grinding wheel 1, an eccentric block 12 which is welded at the eccentric position of the right side surface of the grinding wheel 1 and is arranged between the front vertical rod 51 and the rear vertical rod 52, and the eccentric block 12 is used for pushing the front vertical rod 51 and the rear vertical rod 52 to reciprocate back and forth through the rotation of the grinding wheel 1. A slide block 62 is connected between the front vertical rod 51 and the rear vertical rod 52 to realize synchronous movement of the front vertical rod 51 and the rear vertical rod 52. The bottom of the right side of the frame 11 is transversely provided with a sliding chute 61, and a sliding block 62 is slidably connected in the sliding chute 61 to guide the forward and backward movement of the sliding block 62. To increase the connection stability, as shown in fig. 4, the sliding chute 61 is a dovetail groove, and the sliding block 62 is also dovetail-shaped, so that the sliding block 62 is prevented from falling off. A rack is welded on the right side of the sliding block 62, a gear 63 rotatably connected to the frame 11 is meshed on the right side of the rack, and the sliding block 62 moves back and forth to drive the rack to move back and forth, so that the gear 63 is rotated. The spool 7 is coaxially connected below the gear 63, and the spool 7 can be driven to rotate by rotation of the gear 63. A first traction member 35 is connected between the first impact block 32 and the winding post 7, and winding or unwinding of the first traction member 35 is achieved through rotation of the winding post 7. When the winding post 7 rotates clockwise, the first traction piece 35 is wound, and the first striking block 32 is driven to retract into the first fixing sleeve 31. In order to facilitate the connection of the first traction member 35 with the winding post 7, a threading hole is provided on the right side of the first fixing sleeve 31. A second traction piece 45 is connected between the second impact block 42 and the sliding block 62, and the second impact block 42 can be driven to retract into the second fixing sleeve 41 by the backward movement of the sliding block 62. To facilitate the connection of the second traction member 45 with the slider 62, the bottom side of the second fixing sleeve 41 is provided with a threading hole. In order to reduce the abrasion of the first traction piece 35 and the second traction piece 45, pulleys 8 are arranged at the threading holes, so that the transitional abrasion caused by the contact between the first traction piece 35 and the second traction piece 45 and the wall of the threading holes is avoided.

When the vibrating rake is used, the connecting rod 21 is rotated, the bottom end of the vibrating rake 2 is inserted into crushed stone, the road roller is started, the eccentric block 12 is driven to do circular motion through the rolling of the grinding wheel 1, and the front vertical rod 51 and the rear vertical rod 52 are driven to do back-and-forth reciprocating motion through the motion of the eccentric block 12.

When the front vertical rod 51 moves backwards, the first push rod 36 is pushed to move backwards and push the first plug pin 33 out of a lock hole preset in the first impact block 32, unlocking of the first impact block 32 is achieved, and the first impact block 32 is pushed by the first elastic piece 34 to collide with the vibration rake 2, so that impact of the first impact mechanism on the vibration rake 2 is achieved. The second impact mechanism operates in substantially the same manner as the first impact mechanism, except that: when the front vertical rod 51 moves forward, the second pushing rod 46 is pushed by the front vertical rod 51 to move forward, so that the second impact block 42 can be unlocked.

The vibration that produces after vibration harrow 2 is strikeed can vibrate the rubble and carry out the position adjustment to fall into the gap between the rubble with the rubble or the soil that the volume is littleer, fill up the gap between the rubble, make the road bed more closely knit.

When the front vertical rod 51 moves backwards, the sliding block 62 is driven to move backwards, the sliding block 62 drives the second sliding block 62 to retract into the second fixing sleeve 41 through the second traction piece 45, and the second elastic piece 44 is compressed to deform, so that the second impact block 42 is reset, and the second impact block 42 can repeatedly impact the vibration rake 2.

When the front vertical rod 51 moves forward, the sliding block 62 is driven to move forward, that is, the rack also moves forward, so that the gear 63 rotates anticlockwise to wind the first traction member 35 on the winding post 7, the first impact block 32 retreats into the first fixing sleeve 31, and the first elastic member 34 is compressed to deform, thereby realizing the resetting of the first impact block 32, and the first impact block 32 can repeatedly impact the vibrating rake 2.

The vibration rake 2 is in a vibration state all the time by repeatedly striking the vibration rake 2, so that the road base can be continuously vibrated, and the leveling treatment of the whole construction section is completed by the movement of the road roller. The bigger stone can not pass through the rake teeth of the vibrating rake 2, so the bigger stone can be screened out by the vibrating rake 2, the effect of rolling is avoided from being influenced by the stone, the abrasion of the stone to the grinding wheel 1 can be avoided, and the service life of the grinding wheel 1 is prolonged.

Claims

1. A road surface leveling device for a road roller, which is characterized by comprising a vibrating rake (2), a first striking mechanism and a pushing mechanism;

the vibrating rake (2) is positioned at the front side of the frame (11), and a connecting rod (21) is connected between the vibrating rake (2) and the frame (11);

the pushing mechanism comprises a front vertical rod (51) and a rear vertical rod (52) which are respectively connected to the front half part and the rear half part of the right side surface of the grinding wheel (1) in a sliding mode, an eccentric block (12) positioned at the eccentric position of the grinding wheel (1) is arranged between the front vertical rod (51) and the rear vertical rod (52), the front vertical rod (51) and the rear vertical rod (52) are both intermittently pushed by the eccentric block (12), a sliding block (62) is connected between the front vertical rod (51) and the rear vertical rod (52), a sliding chute (61) which is transversely arranged is arranged at the bottom of the frame (11), the sliding block (62) is connected in the sliding chute (61) in a sliding mode, a rack is fixedly arranged on the right side of the sliding block (62), a gear (63) which is rotatably connected to the frame (11) is meshed with the gear (63), and the winding column (7) is coaxially connected with the gear (63);

the first striking mechanism comprises a first fixed sleeve (31) positioned on the right side of the vibrating harrow (2), the left side of the first fixed sleeve (31) is of an opening structure, a first striking block (32) for striking the vibrating harrow (2) to vibrate is connected in a sliding manner in the first fixed sleeve (31), a first elastic piece (34) is connected between the first striking block (32) and the first fixed sleeve (31), a first traction piece (35) is connected between the first striking block (32) and the winding column (7), a threading hole for the first traction piece (35) to pass through is formed in the right part of the first fixed sleeve (31), a lock hole is formed in the first striking block (32), a first bolt (33) for locking the first striking block (32) is arranged in the first fixed sleeve (31), a first reset piece (33) is connected between the first striking block (32) and the first fixed sleeve (31), a first reset piece (36) is arranged at the right part of the first fixed sleeve (31), the first bolt (33) is pushed by the first bolt (33) to push the other end of the first bolt (51) to the first vertical rod (51) to the front end of the vehicle frame, and the first bolt (33) can be pushed by the first bolt (33) to push the other end of the first bolt (51) to pass through the front vertical rod, the first pushing rod (36) is connected in the lower fixed chute in a sliding way, and the connecting rod (21) is connected on the frame (11) in a rotating way;

the second impact mechanism comprises a second fixing sleeve (41), a second impact block (42), a second bolt (43), a second elastic piece (44), a second pushing rod (46) and a second traction piece (45), and the second impact mechanism is basically the same as the first impact mechanism in composition, structure and working mode, and the difference is that: the second impact mechanism and the first impact mechanism are arranged front and back to alternately impact the vibration harrow (2), the second pushing rod (46) and the first pushing rod (36) are staggered up and down and front and back, the top of the frame (11) is transversely provided with an upper fixed chute, the second pushing rod (46) is slidably connected in the upper fixed chute, the rear end of the first pushing rod (36) is positioned at the rear side of the front vertical rod (51) and is intermittently pushed back by the front vertical rod (51), the rear end of the second pushing rod (46) is positioned at the front side of the front vertical rod (51) and is intermittently pushed forward by the front vertical rod (51), the second traction piece (45) is connected between the second impact block (42) and the sliding block (62), and the right part of the second fixed sleeve (41) is provided with a threading hole for the second traction piece (45) to pass through;

one end of the vibrating harrow (2) close to the first fixed sleeve (31) is provided with a bearing plate (22);

two threading holes are provided with pulleys (8).

2. The road surface leveling device according to claim 1, characterized in that the first impact block (32) and the second impact block (42) are provided with road wheels at the bottoms thereof, and the road wheels are always positioned in the corresponding fixing sleeves.

3. The road surface leveling device according to claim 1, wherein the sliding chute (61), the upper fixed chute and the lower fixed chute are dovetail grooves, and the slider (62), the first pushing rod (36) and the second pushing rod (46) are dovetail-shaped.