CN2254030Y

CN2254030Y - Combined chisel for power breaking chipper

Info

Publication number: CN2254030Y
Application number: CN 96229926
Authority: CN
Inventors: 曾伴水
Original assignee: Individual
Current assignee: Individual
Priority date: 1996-05-21
Filing date: 1996-05-21
Publication date: 1997-05-14
Anticipated expiration: 2006-05-21

Abstract

The utility model relates to a combined chisel head for power breaking chisels, which is characterized in that a chisel head can be divided into a chisel handle and a chisel head point which can be assembled and disassembled. The chisel head point is sheathed in a hollow containing slot of the chisel handle via the chisel head handle part at the lower end of the chisel head, and the chisel head handle part can be buckled and fixed by a spring snap type automatic buckling device on the chisel handle via a fixed pin. The utility model has the advantages that when the chisel head is consumed or damaged in breaking engineering, users only need to change the chisel head point which can form the chisel head, and the expensive chisel handle does not need to be changed. In addition, the same chisel handle is suitable for various types of chisel head point, the chisel head point has rapid changing and convenient operation, and therefore, the utility model can save expenses, increase construction efficiency and increase construction quality.

Description

The combined type cutter head of the broken cutter of power usefulness

The utility model belongs to percussion tool, specifically is the cutter head of the broken cutter of a kind of power usefulness.

Generally speaking, the broken cutter of various power all is a cutter tip part that utilizes its cutter leading portion, directly act on various hard mountain rocks, wall stone, cement, brick and tile, armored concrete ... Deng, make it to become broken state.Required according to operation, its cutter tip make be flat of awl tip type, the flat head dummy of a word, a word widened ... etc. pattern.Because in subject matter, obviously, the cutter head also is subjected to powerful reaction force to the cutter head with its powerful impact force action, therefore, as long as the place of broken engineering is arranged, just necessarily having the cutter head that is decreased in a large number need keep in repair or scrap.In broken engineering, a ＂ cutter ＂ belongs to a kind of coefficient of losses height, expendable parts that losing quantity is big, and also can interrupt sometimes because of it causes construction, so in the prior art, all adopt the movable ＂ structure of ＂ between the support main body of dynamic breaker's tool and its cutter head.As everyone knows, now be seen in to be all by an integrated cutter handle and a cutter point in the movable cutter head of the various types in city and constitute, promptly the back segment of cutter head claims ＂ cutter handle ＂, and leading portion claims a ＂ cutter sharp ＂, and both have the inseparable character of one its cutter handle and cutter head point.When this cutter head is contained in the broken cutter of power, be to implement the socket connection between the neck on its cutter handle fixed position and broken cutter support main body and to fix.The movable ＂ of so-called ＂, be that " the cutter handle is with cutter head point " must be together with the movable ＂ of ＂ in fact, and can not only change use with regard to leading portion cutter head point, therefore, engineering often, just must get everything ready simultaneously by polytype " cutter head ", widened as flat of awl tip type, the flat head dummy of a word, a word ... Deng, just finished construction smoothly.As mentioned above, the broken parts of cutter head mainly is a cutter nose part, the cutter head of existing this cutter handle, a cutter sharp integrative-structure, can only change together when changing, obviously on foot increase cost, and the price of cutter shank portion far beyond a cutter nose part costliness many, cause unnecessary waste and loss.If be the reduction of expenditure spending, way with maintenance cutter head point solves, but because of maintenance, the maintenance of general cutter head point must be via forging operations such as light, heat treatment, both time-consuming, bothersomely be equipped with some maintenances of equipment again, also may cause engineering to interrupt, this all is not worth it on economy, time and manpower.

The purpose of this utility model is to provide a kind of combined type cutter head that is widely used in the broken boring tool of various power, simple, quick with dismounting, can give up, upgrade, and look the construction functions such as a different types cutter point that need change the outfit, both can impel broken cutter to do the most effective utilization and give full play to its effect, more can save economic spending, the assurance time, grasp project progress really.

The utility model of realizing above-mentioned purpose is, but cutter handle and cutter sharp two parts of the cutter head being divided into demolition, installation, simultaneously, for realizing the purpose of quick demolition, installation, also include a steady pin in the utility model and be located on the cutter handle in order to fix the Spring Card button automatic shield block of cutter head point.Concrete structure is: the utility model cutter head consists predominantly of a cutter handle, that is connected with the broken cutter of power main body and is connected cutter head point, an automatic shield block and a spring assembly on the cutter handle, wherein, the epimere ora terminalis face of cutter handle is formed with one and takes up groove for the hollow that takes up socket cutter head point, and offers linearly symmetry and run through the fixing hole of groove of groove and two that a bottom slightly is the parabolic surface shape respectively in its outer peripheral edges; A hypomere cutter shank of cutter head point comprise one section slightly be narrow down on gradually wide even arc surface, and offer two linearly symmetrical buckle grooves in the bottom of this cutter shank; Protrude out respectively on one side, two fixed positions of said automatic shield block be provided with a buckle projection and on have the fixedly projection of pin shaft hole; Said spring assembly is the ＂ U ＂ font that two ends justice is opened; The empty bottom that takes up groove among above-mentioned spring assembly is installed on the cutter handle, and the one end is stretched insert in the groove; Automatic shield block is embedded in the groove and with bearing pin and passes the fixing hole of cutting a hole on the handle and fixing after the fixedly projection upper pin hole of blocking the shield device, the lower end of this card shield device is pressed on the end of ＂ U ＂ font spring assembly, and the buckle piece of upper end can be detained and be stuck in cover and insert cutter handle hollow and take up in the buckle groove of the cutter shank in the groove.

By last structure as seen, because the utility model cutter head is divided into cutter handle and cutter sharp two parts, cutting a hole sharp a cutter with its hypomere fixes with the automatic shield block fixing after shank cover is inserted on the cutter handle, then as usually said rapid wear easily the cutter head of consumption after loss or damaging, perhaps when needing to change a kind of usually said cutter head dummy formula in the work, as long as change a cutter head point, and, again needn't be as carrying as the tradition cutter head ground, each cutter head all includes cutter handle and cutter head point, cause and all must additionally bear many cutter handles each time extremely arduously, and the chisel edge head that is only carried a cutter handle and necessity gets final product, not only convenient but also save economy, can also improve efficiency of construction and promote construction quality.Even constituting other member of the present utility model is damaged, have loosening or come off or automatic shield block has when malfunctioning as spring generation elastic fatigue, fixing pin, it is also very convenient to change this part, can often protect the good upstate of cutter head, can avoid having again engineering to be forced to thing generations such as interruption fully.

Embodiment of the present utility model as shown in drawings.Below in conjunction with drawings and Examples the utility model is described specifically.

Description of drawings:

Fig. 1 is a STRUCTURE DECOMPOSITION schematic diagram of the present utility model.

Fig. 2 is a cutter head point and the decomposing schematic representation of cutting a hole handle in the utility model combining structure.

Fig. 3 buckles the perspective diagram that fastens to cutter head point for mat automatic shield block in the utility model combining structure.

Fig. 4 presses by the automatic shield block back segment for mat in the utility model combining structure and breaks away from the perspective diagram of tightening state to impel cutter head point.

Fig. 5 is the enforcement illustration of socket awl tip type cutter head point in the utility model combining structure.

Fig. 6 is the enforcement illustration of the flat head dummy cutter of socket one word head point in the utility model combining structure.

Fig. 7 is the enforcement illustration of flat widened cutter head point of socket one word in the utility model combining structure.

Label declaration in the above-mentioned accompanying drawing is as follows:

1-cuts a hole handle, the 1a-neck construction, and 1b-hollow takes up groove, 1c-groove, 1d-two symmetries

Fixing hole,

2-cutter head point, 2a-cuts a hole a handle, the even arc surface of 2b-, 2c-two symmetrical buckle grooves,

The 3-automatic shield block, 3a-buckle projection, 3b-is projection fixedly, the 3c-pin shaft hole,

The 4-spring assembly,

The 5-bearing pin.

See by Fig. 1, the utility model cutter head includes cutter handle 1, cutter head point 2,

automatic shield block

3,5 five parts of spring assembly 4 and bearing pin, wherein: have a neck construction 1a who slightly is less external diameter on the hypomere fixed position of cutter handle 1, cutter handle 1 neck construction 1a by this is fixedly connected on the broken cutter support main body, extend into downwards and have appropriate depth and take up groove 1b and on the epimere ora terminalis face position of cutter handle 1, be formed with one for the hollow that takes up socket cutter head point 2, and offer a suitable length respectively on section outer peripheral edges three fixed positions thereon, the bottom takes up the groove 1c that groove 1b communicates and slightly is the parabolic surface shape with hollow, reaches two and is symmetrically straight line and runs through the fixing hole 1d of groove 1c.A hypomere cutter shank 2a of cutter head point 2 comprise one section slightly be narrow down on gradually wide even arc surface 2b, and in the bottom outer peripheral edges of this cutter shank 2a linearly to being referred to as on two fixed positions, subdivision does not offer a buckle groove 2c.The effect of above-mentioned even arc surface 2b is that one side can be obtained the socket in driving fit standard width of a room in an old-style house crack, can avoid cutter head point 2 to rock during use, can more impel in the crushing force quantity set on the other hand, promotes its effect.The epimere head system of cutter head point 2 can be cast as by the type of the broken boring tool of general power flat of awl tip type, the flat head dummy of a word, a word widened ... etc. multiple pattern.See by Fig. 1, protrude out respectively on a side two fixed positions of the automatic shield block 3 in the present embodiment be provided with a buckle projection 3a and on have the fixedly projection 3b of pin shaft hole 3c; Spring assembly 4 is the ＂ U ＂ font that two ends justice is opened, and please consults Fig. 3 simultaneously, the empty bottom that takes up groove 1b among this spring assembly 4 is installed on the cutter handle 1, and the one end is stretched insert among the groove 1c.Automatic shield block 3 is embedded among the groove 1c and with bearing pin 5 and passes the fixing hole 1d that cuts a hole on the handle 1 and fixing after the fixedly projection 3b upper pin hole 3c that blocks shield device 3, the lower end of this card shield device 3 is pressed on the end of ＂ U ＂ font spring assembly, and the buckle piece 3a of upper end can detain and be stuck in cover and insert cutter handle 1 hollow and take up among the buckle groove 2c of the cutter shank 2a in the groove 1b.The cutter head that so is assembled into, automatic shield block 3 its bottoms are subjected to the elastic force effect of spring assembly 4 and make the buckle projection 3a of its upper end be able to detain tightly automatically a buckle groove 2c who blocks cutter head point 2, unexpected getting loose downwards; Please consult Fig. 2, Fig. 4 simultaneously, and when pressing by section position under this automatic shield block 3, the buckle projection 3a that impels its epimere faces upward and when breaking away from tightening state, cutter head point 2 comes off at once.

Fig. 5, Fig. 5 and shown in Figure 7 then for the embodiment of different types cutter head point 2 is housed on the cutter handle 1 of the utility model, wherein, Figure 5 shows that awl tip type cutter head point is housed on the cutter handle, Figure 6 shows that the flat head dummy cutter of word head point, Figure 7 shows that flat widened cutter head point of a word.Explanation thus, the cutter head point 2 of same the cutter handle 1 applicable various types that changes the outfit.

Claims

1, the combined type cutter head of the broken cutter of a kind of power usefulness, it is characterized in that this cutter head consists predominantly of a cutter handle (1), that is connected with the broken cutter of power main body and is connected cutter head point (2), an automatic shield block (3) and a spring assembly (4) on the cutter handle (1), wherein

A, the epimere ora terminalis face of cutter handle (1) is formed with one and takes up groove (1b) for the hollow that takes up socket cutter head point (2), and offering a bottom respectively in its outer peripheral edges, slightly to be the groove (1c) and two of parabolic surface shape linearly symmetrical and run through the fixing hole (1d) of groove (1c);

B, a hypomere cutter shank (2a) of cutter head point (2) comprise one section slightly be narrow down on gradually wide even arc surface (2b), and offer two linearly symmetrical buckle grooves (2c) in the bottom of this cutter shank (2a);

C, protrude out respectively on a side two fixed positions of said automatic shield block (3) be provided with a buckle projection (3a) and on have the fixedly projection (3b) of pin shaft hole (3c); Said spring assembly (4) is the ＂ U ＂ font that two ends justice is opened;

D, above-mentioned spring assembly (4) be installed in cutter handle (1) go up among sky take up the bottom of groove (1b), and the one end is stretched insert in the groove (1c); Automatic shield block (3) is embedded in the groove (1c) and with the back, fixedly projection (3b) upper pin hole (3c) that bearing pin (5) passes the fixing hole of cutting a hole on the handle (1) (1d) and blocks shield device (3) and fixes, the lower end of this card shield device (1) is pressed on the end of ＂ U ＂ font spring assembly, and the buckle piece (3a) of upper end can be detained and be stuck in cover and insert cutter handle (1) hollow and take up in the buckle groove (2c) of the cutter shank (2a) in the groove (1b).

2, according to the described combined type of claim 1 cutter head, a pointed nose that it is characterized in that said cutter head point (2) can be multiple patterns such as flat of awl tip type, the flat head dummy of a word, a word be widened.