CN2177793Y

CN2177793Y - Jointing sleeve for combining mine drill

Info

Publication number: CN2177793Y
Application number: CN 93241509
Authority: CN
Inventors: 沈荷生
Original assignee: HUANGYAN CITY MINING TOOL FACTORY
Current assignee: HUANGYAN CITY MINING TOOL FACTORY
Priority date: 1993-10-07
Filing date: 1993-10-07
Publication date: 1994-09-21
Anticipated expiration: 2003-10-07

Abstract

The utility model relates to a joint sleeve for a combined mine drill. One end of the joint sleeve is a joint handle with the conical outer wall, the joint handle is matched with a drill, a tapered joint hole is arranged in the other end of the joint sleeve, and the joint hole is matched with a drill rod. Steps or no step are arranged between the joint handle on the outer wall of the joint sleeve and the sleeve cylinder. The utility model has the advantages of drill material saving, cost reduction, convenient mounting and dismounting and service life extension.

Description

Jointing sleeve for combining mine drill

The utility model relates to the adapter sleeve of a kind of combined mine drill bit.

Combined mine drill bit is characterized between drill bit and drill steel increasing an adapter sleeve, and promptly drill bit and drill steel are for to be connected indirectly.The advantage of this class formation is that drilling life of bit is long, and scrappage is low, and mounting or dismounting are convenient, laborsaving saving time.But existing combined mine drill bit, CN93223017.2 as the applicant's invention, the weak point of its existence is all to be the tapering endoporus at the two that connects, and the afterbody of drill bit is a connection handle, and connection handle is longer, so material is just many, behind the bit wear, connect and brightly just slattern in vain, and do not allow flimsy adapter sleeve material few on the contrary, thus unreasonable on the structure.Be that hole by adapter sleeve cooperates with the connection handle of drill bit on the other hand, also inconvenient in mounting or dismounting.

The purpose of this utility model is to design a kind of have connection handle, the adapter sleeve of the combination mine drill bit that connection handle cooperates with the hole of drill bit.

The technical scheme of the adapter sleeve of the utility model combination mine drill bit is: one of adapter sleeve is the connection handle of taper, and connection handle matches with the connecting hole of drill bit, and the other end of adapter sleeve is that inwall is the connecting hole of tapering, and connecting hole matches with drill steel.

The adapter sleeve of combination of the present utility model mine drill bit, the outer wall of its adapter sleeve has step or does not have step between connection handle and sleeve.

The utility model discloses a kind of adapter sleeve that makes up the mine drill bit, compared with the prior art, saved the material of drill bit, cut the waste, reduce cost, install and remove more convenient.

Fig. 1 is the adapter sleeve schematic diagram of the utility model combination mine drill bit;

Fig. 2 is that the outer wall of the utility model adapter sleeve does not have the step schematic diagram;

Fig. 3 is the utility model adapter sleeve and drill bit and drill steel assembling schematic diagram.

In conjunction with Fig. 1-Fig. 3 embodiment of the present utility model is being done detailed explanation down.

1, taper connection handle; 2, advance, drain hole; 3, adapter sleeve; 4, connecting hole; 5, step; 6, drill bit; 7, advance, the draining aperture; 8, drill steel; 9, drill steel endoporus.

The utility model is the adapter sleeve of combination mine drill bit, and one of adapter sleeve 3 is taper connection handle 1, in have into, drain hole 2, taper connection handle 1 cooperates with drill bit 6 connecting holes, has on the drill bit into, draining aperture 7.The other end inwall of adapter sleeve is the connecting hole 4 of tapering, and connecting hole matches with drill steel 8, drill steel endoporus 9.The connection handle of adapter sleeve external form and have between the sleeve of connecting hole step 5(such as Fig. 1, shown in Figure 3 are arranged), or do not have step (as shown in Figure 2).

Claims

1, the adapter sleeve of combination mine drill bit, of it is characterized in that adapter sleeve (3) is the connection handle (1) of taper, the other end inwall of adapter sleeve (3) is the connecting hole (4) of tapering.

2, the adapter sleeve of combination as claimed in claim 1 mine drill bit is characterized in that step (5) being arranged or not having step between the connection handle of adapter sleeve and the sleeve.