CN210328488U

CN210328488U - Earth boring machine with buffer gear

Info

Publication number: CN210328488U
Application number: CN201921280373.3U
Authority: CN
Inventors: 孙振兴
Original assignee: Shandong Langsen Machinery Co Ltd
Current assignee: Shandong Langsen Machinery Co Ltd
Priority date: 2019-08-08
Filing date: 2019-08-08
Publication date: 2020-04-17
Anticipated expiration: 2029-08-08

Abstract

The utility model discloses a earth boring machine with buffer gear belongs to engineering machine tool technical field. It has solved among the prior art hand-held type earth boring machine and has not possessed buffer gear's defect. It mainly includes the aircraft nose of digging pit, the aircraft nose of digging pit includes the pivot, the drill bit is connected through buffer gear in the pivot, buffer gear includes buffering connecting axle and lower buffering connecting axle, go up buffering connecting axle and pivot fixed connection and set up cylindrical inner chamber and install the dog, down buffering connecting axle and drill bit fixed connection just install cylindrical rotating head respectively and lower dog, cylindrical inner chamber is inserted to the rotating head, it is equipped with buffer spring to go up the cover on buffering connecting axle and the lower buffering connecting axle, buffer spring's upside and downside are connected with last dog and lower dog respectively.

Description

Earth boring machine with buffer gear

Technical Field

The utility model belongs to the technical field of engineering machine tool, specifically speaking especially relates to a earth boring machine with buffer gear.

Background

The earth boring machine is a special machine for realizing rapid earth boring when people carry out labor operation, is widely applied to afforestation, fruit forest planting, fencing, fruit tree fertilization in autumn and the like, has the advantages of strong force, attractive appearance, comfortable operation and low labor intensity, and can be roughly divided into a handheld earth boring machine, a front-mounted earth boring machine and a rear-mounted earth boring machine. When the hand-held earth boring machine is used, the drill bit is inevitably stopped suddenly because the soil is often mixed with hard solids such as stones, tree roots and the like. At the moment, the engine cannot be stopped in time, when the drill bit stops and the engine works, the digging head (held by an operator) suddenly rotates, and the situation can bring injuries of sprain and collision to the operator.

Disclosure of Invention

The utility model aims at providing a earth boring machine with buffer gear to overcome among the prior art hand-held type earth boring machine and do not possess buffer gear's defect.

The utility model discloses an adopt following technical scheme to realize: the utility model provides a earth boring machine with buffer gear, includes the aircraft nose of digging pit, the aircraft nose of digging pit includes the pivot, the drill bit is connected through buffer gear in the pivot, buffer gear includes buffering connecting axle and lower buffering connecting axle, go up buffering connecting axle and pivot fixed connection and set up cylindrical inner chamber and install the dog, the buffering connecting axle just installs cylindrical rotating head and lower dog respectively with drill bit fixed connection down, the rotating head inserts in the cylindrical inner chamber of buffering connecting axle, it is equipped with buffer spring to go up the cover on buffering connecting axle and the lower buffering connecting axle, buffer spring's upside and downside are connected with last dog and lower dog respectively.

Further, the buffer spring is a torsion spring.

Furthermore, the upper buffering connecting shaft and the rotating shaft are respectively provided with an upper through hole, a rotation stopping pin is arranged in the upper through hole, the lower buffering connecting shaft and the drill bit are respectively provided with a lower through hole, and the rotation stopping pin is arranged in the lower through hole.

Compared with the prior art, the beneficial effects of the utility model are that: having buffer gear between digging handpiece and the drill bit, can reducing the injury of sprain or collision that the workman caused because the drill bit stops the rotation suddenly when operating hand-held type digging machine effectively.

Drawings

Fig. 1 is a schematic structural diagram of the present invention;

fig. 2 is a partial enlarged view i of fig. 1.

In the figure: 1. a digging machine head; 2. a rotating shaft; 3. a drill bit; 4. an upper stop block; 5. an upper buffer connecting shaft; 6. a lower buffer connecting shaft; 7. rotating the head; 8. a torsion spring; 9. a lower stop block; 10. a rotation stopping pin; 11. a frame; 12. and a power device.

Detailed Description

The present invention will be further explained with reference to the accompanying drawings.

Example 1:

the utility model provides a earth boring machine with buffer gear, includes earth boring aircraft nose 1, earth boring aircraft nose 1 includes pivot 2, pivot 2 is through buffer gear connection drill bit 3, buffer gear includes buffering connecting axle 5 and lower buffering connecting axle 6, go up buffering connecting

axle

5 and 2 fixed connection in pivot and set up cylindrical inner chamber and install dog 4, cushion connecting axle 6 and 3 fixed connection of drill bit and install cylindrical rotating head 7 respectively and dog 9 down, rotating head 7 inserts in the cylindrical inner chamber of last buffering connecting axle 5, it is equipped with buffer spring to go up the cover on buffering connecting axle 5 and the lower buffering connecting axle 6, buffer spring's upside and downside are connected with last dog 4 and lower dog 9 respectively.

Example 2:

a hole digger with a buffer mechanism is characterized in that an upper buffer connecting shaft 5 and a rotating shaft 2 are respectively provided with an upper through hole, a rotation stopping pin 10 is arranged in the upper through hole, a lower buffer connecting shaft 6 and a drill bit 3 are respectively provided with a lower through hole, and the rotation stopping pin 10 is arranged in the lower through hole; the other structure is the same as embodiment 1.

The buffer spring is a torsion spring 8.

Digging machine head 1 includes frame 11 and power device 12, power device 12 is fuel engine or motor, and power device 12 fixes in frame 11, and power device 12 includes pivot 2, and the frame 11 operation is held to the operator's accessible the utility model discloses a hole digging machine head is provided with a motor, and the operator's accessible is provided with a motor.

Pivot 2 with cushion down in the connecting axle 6 inserts the inner chamber of buffering connecting axle 5 and the inner chamber of drill bit 3 respectively to through only changeing round pin 10 respectively with last buffering connecting axle 5 and drill bit 3 fixed connection.

When the rotating shaft 2 drives the upper buffering connecting shaft 5 to rotate, the upper stop block 4 on the upper buffering connecting shaft 5 firstly enables the torsion spring 8 to generate certain torsion, then the torsion spring 8 acts on the lower stop block 9 to enable the lower buffering connecting shaft 6 to rotate, and the lower buffering connecting shaft 6 further drives the drill bit 3 to rotate; at the moment when the drill bit 3 stops rotating due to the fact that the drill bit touches a hard object, the rotating head 7 is inserted into the cylindrical inner cavity, the upper buffering connecting shaft 5 can rotate relative to the lower buffering connecting shaft 6, the digging head 1 cannot suddenly and violently rotate along with the stop of the drill bit 3, at the moment, the rotating shaft 2 can drive the upper buffering connecting shaft 5 to continuously rotate, the upper stop block 4 on the upper buffering connecting shaft 5 enables the torsion spring 8 to further twist, the torsion spring 8 absorbs the huge torsion of the rotation of the digging head 1, the digging head 1 is prevented from violently and irregularly rotating due to the huge torsion, the torsion force of an operator due to the sudden stop of the drill bit 3 is greatly weakened, and the operator is prevented from being seriously injured; most earth boring machine among the current prior art all is 2 lug connection drill bits 3 of pivot, and at this moment, when drill bit 3 stopped rotating suddenly, the aircraft nose 1 that digs the pit can take place violent irregular rotation because of huge torsion, can cause the operator to take place to sprane under this kind of condition and collide with etc. injury.

Claims

1. The utility model provides a earth boring machine with buffer gear, includes earth boring aircraft nose (1), earth boring aircraft nose (1) is including pivot (2), its characterized in that: the utility model discloses a buffer spring, including pivot (2), buffer connection axle (5), cylindrical inner chamber and installation dog (4), buffer connection axle (6) are connected through buffer mechanism in pivot (2), buffer mechanism includes buffer connection axle (5) and lower buffer connection axle (6), go up buffer connection axle (5) and pivot (2) fixed connection and set up cylindrical inner chamber and install dog (4), buffer connection axle (6) and drill bit (3) fixed connection just install cylindrical rotating head (7) and lower dog (9) respectively down, insert in the cylindrical inner chamber of last buffer connection axle (5) rotating head (7), it is equipped with buffer spring to go up buffer connection axle (5) and lower buffer connection axle (6) cover, buffer spring's upside and downside are connected with last dog (4) and lower dog (9) respectively.

2. The earth boring machine with a damping mechanism of claim 1, wherein: the buffer spring is a torsion spring (8).

3. The earth boring machine with a damping mechanism of claim 1, wherein: the upper buffering connecting shaft (5) and the rotating shaft (2) are respectively provided with an upper through hole, a rotation stopping pin (10) is arranged in the upper through hole, the lower buffering connecting shaft (6) and the drill bit (3) are respectively provided with a lower through hole, and the rotation stopping pin (10) is arranged in the lower through hole.