CN211201739U

CN211201739U - Automatic flushing power head of all-hydraulic drilling machine with rear-mounted oil distribution sleeve

Info

Publication number: CN211201739U
Application number: CN201922206615.0U
Authority: CN
Inventors: 刘伟; 周长胜; 邵安芬
Original assignee: Shandong Jiushang Engineering Machinery Co ltd
Current assignee: Shandong Jiushang Engineering Machinery Co ltd
Priority date: 2019-12-10
Filing date: 2019-12-10
Publication date: 2020-08-07
Anticipated expiration: 2029-12-10

Abstract

The utility model provides a join in marriage automatic unit head that washes of rear-mounted all-hydraulic drill of oil jacket, including the box upper cover, the unit head box, the gear train, the main shaft end cover, join in marriage the oil jacket body, the oil feed connects, hydraulic chuck, a plurality of bolt and a plurality of bearing, join in marriage the rear end of the oil jacket body setting at the unit head box, the front end of unit head box is provided with box right-hand member end cover, be provided with right-hand member bearing and bearing seal between box right-hand member end cover and the unit head box, the oil feed connects and set up respectively on the box upper cover and join in marriage the oil jacket body including lubricating oil feed, be provided with the oil return on the unit head box and connect, hydraulic oil feed connects and. The device adopts a rear oil distribution sleeve type structure and a box body right end cover to enable the power head to have an independent lubricating system, can realize automatic flushing, ensures the normal service life of a hydraulic element, and has better sealing performance and running performance.

Description

Automatic flushing power head of all-hydraulic drilling machine with rear-mounted oil distribution sleeve

Technical Field

The utility model belongs to the technical field of colliery gallery probing, especially, relate to an automatic unit head that washes of full-hydraulic drill of join in marriage rearmounted oil jacket.

Background

The power head of the full hydraulic drill mainly comprises two functional components: the hydraulic oil distribution component is composed of a hydraulic oil inlet connector, an oil distribution sleeve, a main shaft and a hydraulic chuck, and is used for driving the chuck to open and close when hydraulic oil enters the hydraulic chuck through the hydraulic oil inlet connector, the oil distribution sleeve and the main shaft, so that the drill rod is clamped and loosened.

The existing power head structure of the full hydraulic drill is that a speed reduction part and an oil distribution part are both arranged in a power head box body, and the two parts are communicated. Therefore, after the hydraulic oil enters the oil distribution sleeve from the hydraulic oil inlet joint, part of the high-pressure oil leaks into the box body through the oil distribution sleeve, and the part of the hydraulic oil provides lubrication for the gear set. However, once the gear set is initially worn and the clearance is increased later, impurities such as iron filings generated by meshing between the gears can be involved in hydraulic oil and cannot be timely processed, so that the abrasion of the gears is increased, and the impurities can enter each hydraulic element of the hydraulic system, so that the damage of the hydraulic element and the failure of the hydraulic system are caused. Secondly, the tightness of the oil inlet joint and the corresponding connecting part needs to be improved, otherwise a large amount of oil stains can be generated at the oil inlet joint or the oil stains can permeate into a hydraulic system through the connecting port.

SUMMERY OF THE UTILITY MODEL

The utility model discloses to the hydraulic pressure of foretell rig unit head and the technical problem that lubricating system exists, provide a reasonable in design, simple structure, connect that the leakproofness is good, have independent lubricating system and can wash the ability automatically one kind join in marriage the automatic unit head that washes of full-hydraulic drilling machine of rear-mounted oil jacket.

In order to achieve the above object, the technical solution adopted by the present invention is that, the utility model provides an automatic flushing power head of an all-hydraulic drilling machine with a rear-mounted oil distribution sleeve, which comprises a box upper cover, a power head box, a gear set, a main shaft end cover, an oil distribution sleeve body, an oil inlet joint, a hydraulic chuck, a plurality of bolts and a plurality of bearings, wherein the oil distribution sleeve body is arranged at the rear end of the power head box, a box right end cover is arranged at the front end of the power head box, a right end bearing and a shaft seal are arranged between the box right end cover and the power head box, the shaft seal is provided with at least two bearings and axially butted, a stepped groove matched with the shaft seal is arranged on the end surface of the box right end cover, the oil inlet joint comprises a lubricating oil inlet joint and a hydraulic oil inlet joint and is respectively arranged on the box upper cover and the oil distribution, the hydraulic oil inlet joint is in threaded connection with the oil distribution sleeve body, and a rotary sealing ring is arranged between the oil distribution sleeve body and the main shaft.

Preferably, the oil distribution sleeve body comprises an oil distribution sleeve shell and an oil distribution sleeve arranged in the oil distribution sleeve shell, and the oil distribution sleeve shell and the oil distribution sleeve are both provided with an oil seal matched with a cylindrical surface of a hydraulic oil inlet joint.

Preferably, an annular oil guide groove is formed in the oil distribution sleeve, the annular oil guide groove is communicated with an oil guide hole formed in the main shaft, and the oil guide hole is communicated with the hydraulic chuck.

Preferably, the bearing further comprises a left end bearing and a rear end bearing, the left end bearing is arranged at one end, opposite to the right end bearing, of the power head box, and the rear end bearing is arranged at one end, close to the power head box, of the oil distribution box shell.

Preferably, the matching surfaces of the oil distribution sleeve and the oil distribution sleeve shell are provided with a plurality of uniformly distributed inserting ribs.

Compared with the prior art, the utility model discloses an advantage lies in with positive effect:

the utility model provides a pair of join in marriage automatic unit head that washes of rear-mounted all-hydraulic drill of oil jacket adopts rear-mounted oil jacket formula structure and box right-hand member lid to divide into the all-hydraulic drill unit head from original integral structure speed reduction part and join in marriage oily part, has independent lubricating system, and fundamentally has prevented that impurity from getting into in the hydraulic system return circuit, and the unit head box is inside moreover and join in marriage the oil jacket body and can realize automatic washing function, has guaranteed hydraulic component's normal life. The main shaft in the device has higher rotation stability, and the sealing performance of the power head box body and the connection sealing performance of the oil inlet joint of the hydraulic oil are higher. The utility model relates to a rationally, be fit for promoting on a large scale.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive labor.

FIG. 1 is a schematic structural view of an automatic flushing power head of a full hydraulic drill with a postpositioned oil distribution sleeve according to an embodiment;

in the above figures, 1, a box body upper cover; 2. a power head box body; 3. a gear set; 4. a main shaft; 5. a main shaft end cover; 6. an oil distribution sleeve body; 61. an oil distribution sleeve shell; 62. an oil distribution sleeve; 7. rotating the sealing ring; 8. An oil inlet joint; 81. a lubricating oil inlet joint; 82. the hydraulic oil enters the oil joint; 9. a hydraulic chuck; 10. A bearing; 101. a right end bearing; 102. a left end bearing; 103. a rear end bearing; 11. a right end cover of the box body; 12. shaft sealing; 13. oil sealing; 14. an annular oil guide groove; 15. an oil guide hole; 16. an oil return joint.

Detailed Description

In order to make the above objects, features and advantages of the present invention more clearly understood, the present invention will be further described with reference to the accompanying drawings and examples. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict. For convenience of description, the words "upper", "lower", "left" and "right" used herein refer to the same directions as the drawings, and do not limit the structure.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein, and therefore the present invention is not limited to the limitations of the specific embodiments of the present disclosure.

An embodiment, as shown in fig. 1, the utility model provides a pair of join in marriage automatic unit head that washes of full-hydraulic drill of oil jacket rear-mounted, including box upper cover 1, unit head box 2, gear train 3, main shaft 4, main shaft end cover 5, join in marriage oil jacket body 6, oil feed joint 8, hydraulic chuck 9, a plurality of bolt and a plurality of bearing 10. The bolts serve as connecting pieces to play an important understanding role in cover bodies of the device, and the structures of the upper cover 1 of the box body, the power head box body 2, the gear set 3, the main shaft 4, the end cover 5 of the main shaft, the oil distribution sleeve body 6 and the hydraulic chuck 9 are the prior art, so that the structure and the function of the device are not repeated in the embodiment. On the basis, the utility model discloses not only adopted the structure of rearmounted distribution of oil cover formula, separated the lubricating system and the hydraulic system of unit head effectively moreover to an effectual washing mechanism is provided.

Specifically, the utility model provides a join in marriage oil jacket body 6 sets up the rear end at the unit head box, the front end of unit head box is provided with box right-hand member end cover 11, be provided with right-hand member bearing 101 and bearing seal 12 between box right-hand member end cover 11 and the unit head box 2, bearing seal 12 has two and axial butt joints at least, be provided with on the terminal surface of box right-hand member end cover 11 with bearing seal complex ladder groove, oil feed joint 8 includes that lubricating oil feed connects 81 and hydraulic oil feed connects 82 and sets up respectively on box upper cover 1 and join in marriage oil jacket body 6, hydraulic oil feed connects 82 and joins in marriage oil jacket body 6 threaded connection, the one side relative with lubricating oil feed joint place side is provided with return oil joint 16 on the unit head box 2, it is provided with rotary seal 7 between oil jacket. The oil distribution sleeve body is of an obvious rear structure, the right end cover 11 of the box body plays a main separation role, the power head is definitely divided into a speed reduction part and an oil distribution part, and lubricating oil or hydraulic oil is supplied through respective oil inlet joints 8. The bearing seal structure can effectively guarantee the independence of the lubricating system and the hydraulic system after being separated, especially adopts the bearing seal structure that the shaft seals of two different external diameters can form the ladder face after the axial is pegged graft, plays high-efficient sealed effect, but also can guarantee the stability that box right-hand member lid 11 and unit head box 2 are connected.

The rear-mounted rotary seal 7 of the oil distribution sleeve and the main shaft 1 are hydraulically washed, a certain amount of hydraulic oil can be stored between the rotary seals, the problem of friction heat generation between the rotary seal 7 of the oil distribution sleeve and the main shaft of the oil distribution sleeve is solved, the problem of overheating between the conventional rotary combined seal of the oil distribution sleeve and the main shaft of the oil distribution sleeve under two composite working conditions of high pressure and high-speed rotation is effectively solved, the service life of the rear-mounted rotary seal of the oil distribution sleeve is prolonged, and the overall service life of a box body of a rear-mounted power head of the oil distribution sleeve is prolonged. The utility model discloses for current all-hydraulic drill unit head structure, can fundamentally solve during hydraulic oil moves in the speed reduction part and advances hydraulic system with impurity such as iron fillings, effectively protected hydraulic component, improved hydraulic component's life, can be convenient for connect corresponding collection device through setting up oil return joint 16 in addition, because oil return joint and lubricating oil feed joint department form the circulation flow system and can realize the inside lubricating oil of automatic washing unit head box.

Further, this device sets up the right-hand member bearing 101 with main shaft cooperation pivoted in the right-hand member face of unit head box 2, and simultaneously, the bearing still includes left end bearing 102 and rear end bearing 103, and left end bearing 101 sets up the one end relative with the right-hand member bearing on the power head box, and rear end bearing 103 sets up the one end that is close to the unit head box in the internal portion of oil distribution shell. The left end bearing 102 and the rear end bearing 103 are commonly used in the prior art, but the matching stability of the connection part of the power head box body and the box body right end cover and the main shaft is also ensured by bearing support, otherwise the power head box body or the main shaft is easy to vibrate, and further the working efficiency of the equipment is influenced, and even the effective service life of the equipment is influenced.

In order to guarantee the supply of effectual hydraulic oil, the utility model discloses be provided with the annular on joining in marriage oil jacket 7 and lead oil groove 71, the annular is led oil groove and is set up at the epaxial oil hole 15 intercommunication that leads, leads oil hole 15 and hydraulic chuck intercommunication. The hydraulic oil pumped from the hydraulic oil inlet joint 82 can enter the oil guide hole 15 through the annular oil guide groove and then enter the corresponding hydraulic chuck through the oil guide hole, and the annular oil guide groove can ensure that the main shaft has continuous hydraulic oil pumped into the oil guide hole in any rotating state.

Particularly, the utility model provides a join in marriage oil jacket body 6 includes join in marriage oil jacket casing 61 and sets up at the inside oil jacket 62 that joins in marriage of joining in marriage oil jacket casing, all is provided with one on joining in marriage oil jacket casing 61 and the oil jacket 62 and joins in marriage the cylinder and complex oil blanket 13 with hydraulic oil feed. Except the sealing effect of the thread matching surface, the two oil seal structures can effectively prevent dust from entering hydraulic oil from the thread surface, and simultaneously prevent the hydraulic oil from flowing backwards to form a large amount of oil stains at the oil inlet joint, so that a hydraulic element is protected. In addition, the two oil seals at the oil inlet joint 82 of the hydraulic oil are beneficial to improving the connection stability of the oil seals on the oil distribution sleeve shell and the working stability of the oil distribution sleeve and the oil distribution sleeve shell

In order to guarantee the connection stability of joining in marriage the oil jacket and joining in marriage the oil jacket casing, the utility model discloses join in marriage the oil jacket and join in marriage the grafting arris (not drawn in the picture) that the oil jacket casing was provided with a plurality of evenly distributed on the fitting surface of the two, the arris height of grafting arris is less than 3mm, the processing and the assembly of being convenient for.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in other forms, and any person skilled in the art may use the above-mentioned technical contents to change or modify the equivalent embodiment into equivalent changes and apply to other fields, but any simple modification, equivalent change and modification made to the above embodiments according to the technical matters of the present invention will still fall within the protection scope of the technical solution of the present invention.

Claims

1. An automatic flushing power head of an all-hydraulic drilling machine with a postpositive oil distribution sleeve comprises a box upper cover, a power head box body, a gear set, a main shaft end cover, an oil distribution sleeve body, oil inlet joints, a hydraulic chuck, a plurality of bolts and a plurality of bearings, and is characterized in that the oil distribution sleeve body is arranged at the rear end of the power head box body, the front end of the power head box body is provided with a box right end cover, a right end bearing and a shaft seal are arranged between the box right end cover and the power head box body, the shaft seal is provided with at least two shaft seals which are axially butted, the end surface of the box right end cover is provided with a stepped groove matched with the shaft seal, the oil inlet joints comprise a lubricating oil inlet joint and a hydraulic oil inlet joint and are respectively arranged on the box upper cover and the oil distribution sleeve body, one side of the power head box body opposite, and a rotary sealing ring is arranged between the oil distribution sleeve body and the main shaft.

2. The automatic flushing power head of the full hydraulic drill with the postpositioned oil distribution sleeve as recited in claim 1, wherein the oil distribution sleeve body comprises an oil distribution sleeve shell and an oil distribution sleeve arranged inside the oil distribution sleeve shell, and the oil distribution sleeve shell and the oil distribution sleeve are both provided with an oil seal matched with a cylindrical surface of a hydraulic oil inlet joint.

3. The automatic flushing power head of the all-hydraulic drill with the postpositioned oil distribution sleeve as recited in claim 2, wherein an annular oil guide groove is arranged on the oil distribution sleeve, the annular oil guide groove is communicated with an oil guide hole arranged on the main shaft, and the oil guide hole is communicated with the hydraulic chuck.

4. The automatic flushing power head of the full hydraulic drill with the postpositioned oil distribution sleeve as recited in claim 3, wherein the bearings further comprise a left end bearing and a rear end bearing, the left end bearing is disposed at an end of the power head box opposite to the right end bearing, and the rear end bearing is disposed at an end of the oil distribution sleeve box close to the power head box.

5. The automatic flushing power head of the full hydraulic drill with the postpositioned oil distribution sleeve as recited in claim 4, wherein the mating surfaces of the oil distribution sleeve and the oil distribution sleeve casing are provided with a plurality of plug ribs which are uniformly distributed.