CN205776454U - A kind of bull-dozer excavating groove and backfill excavation - Google Patents

Abstract

This utility model discloses a kind of bull-dozer excavating groove and backfill excavation, including frame, and is connected to the dozer of frame front end and is connected to the compaction hammer of frame rear end；Dozer includes cutterhead, milling cutter, right pusher blade I, left pusher blade I, driving means and axle II；Cutterhead is circular, and circumferencial direction is evenly equipped with milling cutter, and cutterhead is fixed on axle II, is positioned at the centre position of dozer, can dismantle；The both sides of axle II are connected with left pusher blade I, right pusher blade I；Axle II two ends are supported on bearing I and bearing II, and one end of axle connects driving means；The rear end of bull-dozer is provided with support；Compaction hammer is installed on the lower surface of support.The earth dug out can be elapsed the both sides of dozer by the left and right pusher blade on axle II, after pipeline paving, installs two pusher blades being positioned at scraper bowl both sides additional, and driving means reversely rotates, and elapses in groove by the earthwork of both sides, compaction hammer carries out hitting reality.This utility model principle is simple, and work efficiency is high.

Description

A bulldozer for excavating trenches and backfilling excavations

technical field

The utility model belongs to the technical field of construction machinery, in particular to a bulldozer for excavating trenches and backfilling excavation.

Background technique

A pipeline is a device used to transport gas, liquid or fluid with solid particles connected by pipes, pipe connectors and valves. Due to the convenience of the pipeline, it is widely used in the world. Due to the layout of the city, most of the pipes are buried underground. The traditional method is excavation by excavator or manual excavation. When excavating trenches manually, the work efficiency is low, and the two methods are easy to over-excavate or disturb the base soil layer. Generally speaking, when the height of the bottom of the trench is 20cm above the level, the bottom of the trench will be manually excavated and trimmed while digging, and the foundation construction will be carried out immediately. In case of over-excavation, soil backfill shall be carried out in accordance with relevant backfill compaction requirements. This is very inefficient, and the depth is not easy to control. After the pipeline laying is completed, the excavation needs to be backfilled, which is very inefficient.

Utility model content

The purpose of the utility model is to provide a bulldozer for excavating trenches and backfilling excavation to solve the deficiencies of existing bulldozers. This bulldozer controls the depth of excavating trenches, prevents over-excavation, has little disturbance to the base, and realizes continuous operation. process, high efficiency and strong practicability.

In order to achieve the above object, the utility model adopts the following technical solutions:

A bulldozer for excavating trenches and backfilling excavation, including a frame, a bulldozing blade connected to the front end of the frame, and a compacting hammer connected to the rear end of the frame; the bulldozer includes a cutter head, a milling cutter, a right pusher Blade I, left pusher blade I, driving device and shaft II; the cutter head is circular, with milling cutters evenly distributed in the circumferential direction, the cutter head is fixed on the shaft II, located in the middle of the bulldozing blade, and can be disassembled; the shaft II There are left push blade Ⅰ and right push blade Ⅰ fixedly connected to both sides of the shaft; the two ends of the shaft II are supported on the bearing I and the bearing II, and one end of the shaft is connected with a driving device; the rear end of the bulldozer is provided with a bracket; the compaction hammer Installed on the lower end surface of the bracket.

Further: the frame is provided with a cab, and crawlers and driving wheels for driving the bulldozer are installed under the cab.

Further: the rear end of the bulldozing blade is connected with the frame through a lifting hydraulic cylinder, a vertical hydraulic cylinder, and a pushing frame.

Further: the front end of the bulldozing blade is provided with a lifting cylinder I and a lifting cylinder II.

Further: One end of the lifting cylinder I is hinged to the bearing I through the joint A, and the other end is hinged to the bulldozing blade through the joint B.

Further: one end of the lifting cylinder II is hinged to the bearing II through the joint D, and the other end is hinged to the bulldozing blade through the joint C.

Further: the cab is provided with a controller for controlling the lifting hydraulic cylinder, the vertical hydraulic cylinder, the lifting cylinder I and the lifting cylinder II.

Further: it also includes shaft I, shaft III, left pushing blade II and right pushing blade II; shaft III is connected with shaft II through a coupling, can be disassembled, and is located on the left side of the bulldozing blade, on which is installed The left pusher blade II; the shaft I is installed on the driving device, located on the right side of the bulldozing blade, and can be disassembled, and the right pusher blade II is installed on it.

Further: there are no side walls on both sides of the bucket of the bulldozing blade, and the left pushing blade II and the right pushing blade II protrude to the outside of the bulldozing blade.

The technical solution of the utility model has the following beneficial effects:

When the driving device drives the shaft to rotate, the milling cutter on the cutterhead also rotates, and the controller controls the lifting hydraulic cylinder, vertical hydraulic cylinder, lifting cylinder I, and lifting cylinder II to move, so that the milling cutter on the cutterhead mills the base material , to ensure the depth of the trench, there will be no over-excavation phenomenon, avoid manual trimming, improve efficiency and save costs. The left pusher blade and the right pusher blade can mill the milling cutter and move the soil involved in the bulldozer to the left and right respectively, so that the soil will not accumulate in the bulldozer, ensuring the continuity and efficiency of construction operations Greatly improve. After the pipeline is laid, it is only necessary to remove the cutter head from the shaft, and the shaft is reversed, and the left and right pushing blades transport the soil on both sides of the groove into the groove, and the compaction hammer compacts it to improve work efficiency.

Description of drawings

Fig. 1 is a schematic diagram of the overall structure of the utility model.

Fig. 2 is a side view of the working device.

The meanings of each label in the figure are: 1-support; 2-compacting hammer; 3-driving wheel; 4-track; -lifting hydraulic cylinder; 10-oil delivery pipe; 11-cab; 12-controller; 13-axis I; 14-bearing I; 15-driving device; 16-contact A; 17-lift cylinder I; 18-reception B; 19-Bulldozer blade; 20-Right pusher blade Ⅰ; 21-Left pusher blade Ⅰ; 22-Contact C; 23-Lift cylinder II; 24 Contact D; 25-Bearing II; Pushing blade II, 28-shaft III, 29-coupling, 30-pipeline, 31-right pushing blade II.

detailed description

The specific embodiments of the present utility model are provided below, and it should be noted that the present utility model is not limited to the following specific embodiments, and all equivalent transformations done on the basis of the technical solution of the application all fall into the protection scope of the present utility model.

Please refer to shown in Fig. 1, a kind of bulldozer for trench excavation and backfill excavation, comprises frame, and the bulldozing blade 19 that is connected at the front end of frame and the compaction hammer 2 that is connected at frame rear end;

Dozer shovel 19 comprises cutterhead 7, milling cutter 8, right pusher blade I20, left pusher blade I21, left pusher blade II27, right pusher blade II31, driving device 15, shaft; cutterhead 7 is circular, There are milling cutters 8 evenly distributed in the circumferential direction, and the cutter head 7 is fixed on the shaft II 26 II, which is located in the middle of the bucket of the bulldozer 19 and can be disassembled; the shaft II 26 is fixed on both sides of the cutter head 7 with left pusher blades I 21 1. The right pusher blade I20; the two ends of the shaft II26 are supported on the bearing I14 and the bearing II25, and one end of the shaft II26 is connected with the driving device 15; the shaft III28 is connected with the shaft II26 through a coupling 29, which can be disassembled and located on the bulldozing blade The left side of 19 is equipped with left pushing blade II 21 on it; Axis I 13 is installed on the drive unit 15, is positioned at the right side of bulldozing blade 19, can disassemble, and right pushing blade II 31 is installed on it. There are no side walls on both sides of the bucket of the bulldozing blade 19 , and the left pushing blade II 21 and the right pushing blade II 31 protrude to the outside of the bulldozing blade 19 .

When the driving device drives the shaft to rotate, the milling cutter 8 on the cutter head 7 also rotates, so that the milling cutter 8 on the cutter head 7 mills the base material. The left pushing blade I21 and the right pushing blade I20 can mill the milling cutter 8 and then move the soil involved in the bulldozing blade 19 to the left and right, so that the soil will not accumulate in the bulldozing blade.

The compaction hammer 2 is installed on the lower end surface of the rear end bracket 1 of the bulldozer. After the pipeline is laid, the cutter head 7 is disassembled from the shaft, the shaft II 26 is reversed, and the left pushing blade II 21 and the right pushing blade II 31 transport the soil that is pushed to both sides of the bulldozing blade 19 during excavation to the pushing blade. The inner side of the soil shovel 19, through the left pushing blade I21 and the right pushing blade I20, the soil is further transported into the groove, and compacted by the compacting hammer 2.

A cab 11 is arranged on the frame, and a controller 12 is installed inside the cab 11 , and crawler belts 4 and drive wheels 3 are installed below the cab 11 .

The rear end of the bulldozing blade 19 is connected with the frame through the lifting hydraulic cylinder 9, the vertical hydraulic cylinder 6, and the pushing frame 5. An oil delivery pipe 10 is connected behind the lifting hydraulic pipe 9 . The front end of the bulldozing blade 19 is provided with a lifting cylinder I17 and a lifting cylinder II23. One end of the lifting cylinder I17 is hinged to the bearing I14 through the joint A16, and the other end is hinged to the bulldozing blade 19 through the joint B18. One end of the lifting cylinder II23 is hinged to the bearing II25 through the joint D24, and the other end is hinged to the bulldozing blade 19 through the joint C22.

The controller 12 is used to control the lifting hydraulic cylinder 9, the vertical hydraulic cylinder 6, the lifting cylinder I17, and the lifting cylinder II23. Guarantee the depth of the trench and avoid the phenomenon of over digging.

The specific working process is as follows:

When the bulldozer starts to work, the shafts I and III are removed, and the driving device 15 drives the shaft II26 supported on the bearing I14 and the bearing II25 to rotate, thereby driving the cutter head 7 mounted on the shaft II26 to rotate. The controller 12 controls the actions of the lifting hydraulic cylinder 9, the vertical hydraulic cylinder 6, the lifting cylinder I17, and the lifting cylinder II23 to precisely control the depth of milling. The milling cutter 8 on the cutter head 7 directly rolls the soil milled off the base layer into the bulldozing blade 19, and the rotating left pushing blade I21 and right pushing blade I20 drive the soil accumulated in the bulldozing blade 19 to the bulldozing blade. 19 both sides move, have guaranteed the continuity of the whole operation process. After the pipeline 30 is laid, the shaft I13 is installed on the driving device 15 on the right side of the bulldozing blade 19, the shaft III28 is installed on the left side of the bulldozing blade 19 through the coupling 29, and the cutter head 7 is connected from the shaft Dismantled on II26, driving device 15 drives shaft I13, shaft II26, and shaft III28 to reverse, and the right pusher blade II31 installed on the shaft I13 and the left pusher blade II27 installed on the shaft III28 will push the blades on both sides of the bulldozing blade 19 The soil moves to the middle, and under the action of the left pusher blade I21 and the right pusher blade I20 installed on the shaft II26, the soil pushed over by the left pusher blade II27 and the right pusher blade II31 is transported into the groove, and the The compaction hammer 2 performs compaction to complete the laying of the entire pipeline.

Claims (9)

1. the bull-dozer excavating groove and backfill excavation, it is characterised in that: include frame, and be connected to frame front end Dozer (19) and be connected to the compaction hammer (2) of frame rear end；

Dozer (19) includes cutterhead (7), milling cutter (8), right pusher blade I (20), left pusher blade I (21), driving means And axle II (26) (15)；Cutterhead (7) is circular, and circumferencial direction is evenly equipped with milling cutter (8), and cutterhead (7) is fixed on axle II (26), position In the centre position of dozer (19), can dismantle；The both sides of axle II (26) are connected with left pusher blade I (21), right pusher blade I (20)；Axle II (26) two ends are supported on bearing I (14) and bearing II (25), and one end of axle (26) connects driving means (15)；

The rear end of bull-dozer is provided with support (1)；Compaction hammer (2) is installed on the lower surface of support (1).

A kind of bull-dozer excavating groove and backfill excavation the most according to claim 1, it is characterised in that: arrange in frame There are driver's cabin (11), the lower section of driver's cabin (11) that the crawler belt (4) for driving bull-dozer to advance and driving wheel (3) are installed.

A kind of bull-dozer excavating groove and backfill excavation the most according to claim 2, it is characterised in that: dozer (19) Rear end is connected with frame by lifting hydraulic cylinder (9), vertical hydraulic cylinder (6), pushing frame (5).

A kind of bull-dozer excavating groove and backfill excavation the most according to claim 3, it is characterised in that: dozer (19) Front end is provided with hoist cylinder I (17) and hoist cylinder II (23).

A kind of bull-dozer excavating groove and backfill excavation the most according to claim 4, it is characterised in that: hoist cylinder I (17) one end is hinged with bearing I (14) by contact A (16), and the other end is hinged with dozer (19) by contact B (18).

A kind of bull-dozer excavating groove and backfill excavation the most according to claim 5, it is characterised in that: hoist cylinder II (23) one end is hinged with bearing II (25) by contact D (24), and the other end is hinged with dozer (19) by contact C (22).

A kind of bull-dozer excavating groove and backfill excavation the most according to claim 6, it is characterised in that: driver's cabin sets It is equipped with for controlling lifting hydraulic cylinder (9), vertical hydraulic cylinder (6), hoist cylinder I (17) and the controller of hoist cylinder II (23) (12)。

A kind of bull-dozer excavating groove and backfill excavation the most according to claim 1, it is characterised in that: also include axle I (13), axle III (28), left pusher blade II (27) and right pusher blade II (31)；Axle III (28) is by shaft coupling (29) and axle II (26) it is connected, it is possible to dismounting, is positioned at the left side of dozer (19), it is provided with left pusher blade II (21)；Axle I (13) is pacified It is contained in driving means (15), is positioned at the right side of dozer (19), it is possible to dismounting, it is provided with right pusher blade II (31).

A kind of bull-dozer excavating groove and backfill excavation the most according to claim 8, it is characterised in that: dozer (19) Scraper bowl both sides be not provided with sidewall, left pusher blade II (21) and right pusher blade II (31) extend out to dozer (19) outside.