CN2373610Y

CN2373610Y - Double-metal nut in punching machine speed reducer

Info

Publication number: CN2373610Y
Application number: CN 99206839
Authority: CN
Inventors: 刘彬; 顾书琪; 丁建民
Original assignee: XINJIANG UYGUR AUTONOMOUS REGION COAL MINE MACHINERY PLANT
Current assignee: XINJIANG UYGUR AUTONOMOUS REGION COAL MINE MACHINERY PLANT
Priority date: 1999-04-03
Filing date: 1999-04-03
Publication date: 2000-04-12
Anticipated expiration: 2009-04-03

Abstract

The utility model relates to a double-metal nut in a punching machine speed reducer, belonging to the improvement for the component of the punching machine. The inner wall and the outer wall of an entirety sleeve barrel composed of the carbon steel are cylinder step shape, and the inner wall of the upper half part of the entirety sleeve barrel is fixedly connected with a copper screw nut sleeve with an inner trapezoidal screw thread matched with a screw rod; the inner wall of the lower part of the entirety sleeve barrel is fixedly connected with a copper liner glidingly matched with a driving axle sleeve. The utility model has the advantages that the integral strength is high, gluing between the screw rod and a screw nut is prevented, the wear resistant property of the copper material is good, the abrasion of the component is reduced, the service life is extended, and the manufacturing cost is relatively low.

Description

Bimetal nut in the punch retarder

The utility model belongs to the interior bimetal nut of improvement, particularly punch retarder of the punching mechanical component of mining use.

When the exploitation half-edge coal seam, in order to link up haulage drift and return aircourse, must dig the duct along the coal seam, promptly be commonly referred to as " beating ommatidium ".There is multiple use in this duct in the down-hole, both can make vent hole, transportation hole, coal-treating hole, the rescue hole of the People's Bank of China hole that can do the servant again when having an accident." beating ommatidium " is that colliery headwork workload is bigger, and don't the work of construction easily.At present, " beating ommatidium " tunneled in the colliery at home, the general punch that adopts imitative Soviet Union, the nut that is used for turn-screw in its retarder is the nut that single material constitutes, be generally steel nut, retarder tends to occur the phenomenon of steel leading screw and steel nut generation gummed under the situation of insufficient lubrication in operation process; Also having the nut that is used for turn-screw in its retarder of a kind of punch is copper nut, and retarder can avoid steel leading screw and copper nut to produce the gummed phenomenon, but its bulk strength is low, fragile, involves great expense in operation process.

The purpose of this utility model is to provide the bimetal nut in a kind of punch retarder, and not only retarder can prevent leading screw and nut gummed in operation process, and the bulk strength height, and cost is comparatively cheap.

The utility model is achieved in that the bimetal nut in a kind of punch retarder, it is characterized in that the integral sleeve that constitutes by carbon steel, its inside and outside wall is the cylinder stepped shaft, affixed the copper nut sleeve that has the inner trapezoidal thread that matches with leading screw on the inwall of its first half, affixed copper lining on the inwall of its underpart, the inwall of copper lining is that light face and driving sleeve are slidingly matched.

Because affixed the copper nut sleeve that has trapezoidal thread on the inwall of the integral sleeve that the utility model is a carbon steel to be constituted, the trapezoidal thread of copper nut sleeve matches with the steel leading screw, both guarantee bulk strength of the present utility model, prevented the gummed of leading screw and screw again; Affixed copper lining and driving sleeve are slidingly matched on the lower inner wall of the integral sleeve of steel, and cost is cheaper, and the wear-resisting property of copper material is good, has reduced the wearing and tearing of part, has prolonged working life.

Fig. 1 is an A-A sectional view of the present utility model

Fig. 2 is a side view of the present utility model

Below in conjunction with accompanying drawing the utility model is described further, bimetal nut in a kind of punch retarder, the integral sleeve 1 that constitutes by carbon steel, its inside and outside wall is the cylinder stepped shaft, affixed the copper nut sleeve 4 that has the inner trapezoidal thread that matches with leading screw on the inwall of its first half, affixed copper lining 2 on the inwall of its underpart, the inwall of copper lining 2 is that light face and driving sleeve are slidingly matched, the inwall of copper lining 2 is provided with endless oil groove 3, for storing lubricant oil.

Claims

1. the bimetal nut in the punch retarder, it is characterized in that the integral sleeve (1) that constitutes by carbon steel, its inside and outside wall is the cylinder stepped shaft, affixed the copper nut sleeve (4) that has the inner trapezoidal thread that matches with leading screw on the inwall of its first half, affixed copper lining (2) on the inwall of its underpart, the inwall of copper lining (2) is that light face and driving sleeve are slidingly matched.

2. the bimetal nut in a kind of punch retarder according to claim 1 is characterized in that the inwall of copper lining (2) is provided with endless oil groove (3).