CN201201222Y

CN201201222Y - Split type hydraulic hammer

Info

Publication number: CN201201222Y
Application number: CNU2008200772632U
Authority: CN
Inventors: 张春林; 杨伟光; 杨洪玉; 秦玉胜; 郝庆吉; 闫建昌; 李凌斌
Original assignee: CHANGZHI HYDRAULIC CO LTD
Current assignee: CHANGZHI HYDRAULIC CO LTD
Priority date: 2008-05-19
Filing date: 2008-05-19
Publication date: 2009-03-04
Anticipated expiration: 2018-05-19

Abstract

The utility model relates to a split-type hydraulic hammer, in particular to an impact type split hydraulic hammer, which belongs to the field of impact type hydraulic vibrating device. The technical problem to be solved is to provide the hydraulic hammer the main working parts of which are combined by the split-type structure and which has a more reasonable structure and is convenient to assemble and maintain. The impact type split hydraulic hammer adopts the technical proposal that the impact type split hydraulic hammer is coaxially sleeved with a lower cylinder body, a connecting flange, an intermediate cylinder body and an upper body from the bottom up through double-ended bolts; the middle of the side face of the intermediate cylinder body is fixed with a control valve component; the inside of an inner cavity of the intermediate cylinder body is coaxially sleeved with a butterfly spring, an upper cylinder sleeve and an intermediate cylinder sleeve from the top down; impact plungers are arranged inside inner cavities of the upper cylinder sleeve and the intermediate cylinder sleeve; and stems are arranged on coaxial lower parts of the impact plungers and positioned inside an inner cavity of the lower cylinder body. The impact type split hydraulic hammer can be widely used in the fields of national defense construction, ladle clinker removal, highway and railway construction, municipal engineering, mine, metallurgy, port construction, hydraulic engineering, building engineering and so on.

Description

Split type hydraulic hammer

Technical field

The split type hydraulic hammer of the utility model is specifically related to a kind of impact type split hydraulic hammer, belongs to impact type hydraulic vibration device field.

Background technology

Present its structure of known hydraulic hammer is all-in-one-piece, control valve combines among the middle cylinder body, couple together by bolt then, be subjected to the influence of the accuracy of manufacture and manufacturing cost, be not easy to form and produce in batches, and middle cylinder body cost is too high, has strengthened maintenance cost, directly affects the development and the application of hydraulic hammer.

The utility model content

The utility model overcomes the deficiencies in the prior art, and technical problem to be solved is: a kind of split type hydraulic hammer is provided, with the hydraulic hammer that main working parts adopts split-type structural to combine, makes structure more reasonable, and installation and maintenance are convenient.

In order to solve the problems of the technologies described above, the scheme that the split type hydraulic hammer of the utility model adopts is: split type hydraulic hammer, mainly comprise: the upper body, middle cylinder body, ram piston, lower cylinder body, drill steel and control valve assembly, its structure is: by stud from bottom to top coaxial package lower cylinder body is arranged, mounting flange, middle cylinder body and upper body, centre position, side at middle cylinder body is fixed with the control valve assembly, in in the inner chamber of cylinder body from top to bottom coaxial package butterfly spring is arranged, last cylinder sleeve and middle cylinder sleeve, in the inner chamber of last cylinder sleeve and middle cylinder sleeve, be provided with ram piston, below ram piston coaxial, and the inner chamber that is arranged in lower cylinder body is provided with drill steel; Be provided with annular seal groove on the inside and outside wall of described upward cylinder sleeve and middle cylinder sleeve.

Above-mentioned ram piston is the mid diameter big cylinder of two ends diameter up and down, and the two ends diameter is identical up and down.

The split type hydraulic hammer of the utility model compared with prior art has the following advantages:

Outside the cylinder body, be independent parts during the control valve assembly of split type hydraulic hammer is positioned over, be convenient to produce and assembling and setting, particularly more convenient in maintenance, after valve body or spool actual effect, as long as replacing valve component or single part are just passable; After last cylinder sleeve, middle cylinder sleeve and ram piston are assembled together, reinstall in the cylinder body, they are a class and sleeve part, are convenient to manufacture, and product quality guarantees easily, after certain part actual effect, can directly change, cylinder body in not needing to change greatly reduces maintenance cost, simultaneously rationally distributed, make the shortest, the more compact structure of oil circuit; Be provided with annular seal groove on the inside and outside wall of last cylinder sleeve and middle cylinder sleeve, the effect that can play oil sealing and seal gas behind the corresponding sealing ring is installed in annular seal groove, guaranteed ram piston operate as normal for a long time; Ram piston is the mid diameter big cylinder of two ends diameter up and down, and the two ends diameter is identical up and down, can guarantee that like this impulsive force at utmost obtains utilizing, and reduces energy loss.

The split type hydraulic hammer of the utility model has wide range of applications, can be mainly used to operations such as fractured rock, ore, concrete component, bituminous paving, frozen soil ice cube extensively in fields such as national defense construction, ladle scarfing cinder, highway, railway construction, municipal works, mine, metallurgy, port construction, hydraulic engineering, architectural engineerings.Can reduce production costs and increase work efficiency, its technical performance is reliable and stable.

Description of drawings

Fig. 1 is the structural representation of the split type hydraulic hammer of the utility model,

Fig. 2 is the right view of Fig. 1.

Wherein, 1 is stud, and 2 is long nut, and 3 is the upper body, 4 is the charge valve assembly, and 5 is last cylinder sleeve, and 6 is the control valve assembly, 7 is middle cylinder body, and 8 is middle cylinder sleeve, and 9 is ram piston, 10 is mounting flange, and 11 is last fairlead, and 12 is lower cylinder body, 13 is drill steel, and 14 are following fairlead, and 15 is the ear seat, 16 are the drill steel lock, and 17 is connecting hole, and 18 is annular seal groove.

The specific embodiment

The split type hydraulic hammer of the utility model as depicted in figs. 1 and 2, among the figure, stud 1 coaxial package from bottom to top has lower cylinder body 12, mounting flange 10, middle cylinder body 7 and upper body 3, the lower end of stud 1 is connected in the outer wall of lower cylinder body 12, the upper end of stud 1 is fixing by long nut 2, centre position, side at middle cylinder body 7 is fixed with control valve assembly 6, in in the inner chamber of cylinder body 7 from top to bottom coaxial package butterfly spring 19 is arranged, last cylinder sleeve 5 and middle cylinder sleeve 8, in the inner chamber of last cylinder sleeve 5 and middle cylinder sleeve 8, be provided with ram piston 9, below ram piston 9 coaxial, and the inner chamber that is arranged in lower cylinder body 12 is provided with drill steel 13.

Wherein, a charge valve assembly 4 is equipped with in upper body 3, its internal cavity is filled with nitrogen, and four jiaos of last plane have four holes, are used to install four studs 1.

Be provided with oil-in and oil-out outside the control valve assembly 6, be used for installing rubber hose coupling and sebific duct, with middle cylinder body 7 contacted planes eight holes are being arranged, on the cylinder body 7, its internal structure is identical with existing control valve in eight bolts control valve assembly 6 being anchored on.

Middle cylinder body 7 is the rectangle hexahedron of inner chamber for logical circular hole, in load onto cylinder sleeve 5, middle cylinder sleeve 7 and ram piston 9, on the upper surface of middle cylinder body 7 eight screw holes are arranged, be used for fastening control valve assembly 6, four jiaos of middle cylinder body 7 are useful on the through hole of wearing four studs 1.

Last cylinder sleeve 5 is that cylinder is barrel-shaped, cylindrical and middle cylinder inner bore are matched in clearance, have the annular seal groove 18 that varies in size inside and outside the last cylinder sleeve 5, but oil sealing and envelope gas, the endoporus of last cylinder sleeve 5 and ram piston cylindrical cooperation installation behind the installation sealing ring in annular seal groove 18.

Middle cylinder sleeve 8 is that cylinder is barrel-shaped, and cylindrical and middle cylinder body are matched in clearance, have the annular seal groove 18 that varies in size inside and outside the middle cylinder sleeve 8, but oil sealing behind the installation sealing ring in annular seal groove 18, and endoporus and ram piston cylindrical cooperate to be installed.

Ram piston 9 is the mid diameter big cylinder of two ends diameter up and down, and the two ends diameter is identical up and down, its upper end and last cylinder sleeve 5 matched in clearance, lower end and mid portion and middle cylinder sleeve 8 matched in clearance.

Lower cylinder body 12 is to have increased by two trapezoidal ear seats 15 on a hexahedron, and has made two connecting holes 17 on trapezoidal ear seat, is used for being connected with main body.In two holes of knowing clearly of both ends of the surface setting up and down, be used for and last fairlead 11 and following fairlead 14 interference fit, following fairlead 14 is also locked with straight pin, and be provided with four screws in the upper surface of lower cylinder body 12, be used to install four studs 1, the side is provided with a hole and is used to install drill steel lock pin 16, drill steel places in fairlead 11 and the following fairlead 14, the axial location that last fairlead 11 control drill steels 13 rise, the striking point of ram piston 9 just, the descending maximum position of drill steel lock pin 16 control drill steels 13.

Mounting flange 10 is to have increased by two cylinders hexahedral both ends of the surface, and middle porose, and a face of cylinder is connected with lower cylinder body 12, and another face of cylinder is connected with middle cylinder body 7.

The utility model installation process is as follows: at first will go up fairlead 11 and following fairlead 14 and pack in the lower cylinder body 12, with four studs 1 lower cylinder body 12 of packing into, with mounting flange 10 install to lower cylinder body 12 above, again middle cylinder body 7 is installed on the mounting flange 10, in cylinder sleeve 8, ram piston 9 and last cylinder sleeve 5 pack in the cylinder body 7, reinstall upper body 3, with packing ring and long nut 2 stud 1 is turned round in accordance with regulations and refused to tighten.

Claims

1, split type hydraulic hammer, mainly comprise: upper body (3), middle cylinder body (7), ram piston (9), lower cylinder body (12), drill steel (13) and control valve assembly (6), it is characterized in that: by stud (1) from bottom to top coaxial package lower cylinder body (12) is arranged, mounting flange (10), middle cylinder body (7) and upper body (3), be fixed with control valve assembly (6) in the centre position, side of middle cylinder body (7), in in the inner chamber of cylinder body (7) from top to bottom coaxial package butterfly spring (19) is arranged, last cylinder sleeve (5) and middle cylinder sleeve (8), in the inner chamber of last cylinder sleeve (5) and middle cylinder sleeve (8), be provided with ram piston (9), in the coaxial below of ram piston (9), and the inner chamber that is arranged in lower cylinder body (12) is provided with drill steel (13);

Be provided with annular seal groove (18) on the inside and outside wall of described upward cylinder sleeve (5) and middle cylinder sleeve (8).

2, split type hydraulic hammer according to claim 1 is characterized in that: ram piston (9) is the mid diameter big cylinder of two ends diameter up and down, and the two ends diameter is identical up and down.