CN2555431Y

CN2555431Y - Wear resistance sandstone pump mainshaft with elastic ring

Info

Publication number: CN2555431Y
Application number: CN 02271737
Authority: CN
Inventors: 黎国柱
Original assignee: Individual
Current assignee: Individual
Priority date: 2002-07-16
Filing date: 2002-07-16
Publication date: 2003-06-11
Anticipated expiration: 2012-07-16

Abstract

The utility model relates to a wear resistance sandstone pump main shaft with an elastic ring, which consists of a main shaft 1, bearings, a positioning nut and a bearing cover with an oil seal. A bearing 7 is sleeved on the main shaft 1 and the bearing also leans against the shaft shoulder, and then the bearing is screwed and positioned by the positioning nut 5; the bearing is sleeve on the main shaft 1 by the bearing cover 4; the bearing cover 4 is fixed on an assembly cover 6 and a base 8 by a standard piece; a shaft connector 2 is sleeved on the main shaft 1; the shaft connector 2 is positioned by a flat key; bearings 9, 10 are sleeved on the main shaft 1 and the bearings also lean against the shaft shoulders, and then the bearings are screwed and positioned by nuts; a bearing cover 11 is sleeved with a separating sleeve 12 and then is sleeved on the main shaft 1; leaning against the separating sleeve 12, two semicircular elastic rings 13 are sleeved on the main shafts by bolts; the conical angle of the tapered section of the elastic rings is 2 to 89 degrees. The utility model provides a sandstone pump main shaft with an elastic ring so as to improve the service life of the sandstone pump main shaft with big power, and markedly improve the work efficiency for loading and unloading the main shaft.

Description

The wear-resisting gravel pump main shaft of band loose collar

The wear-resisting gravel pump main shaft of [technical field] band loose collar relates to a kind of dredger gravel pump main drive shaft parts.

[background of invention] is present, does not adopt the product of similar the utility model technology in the prior art, does not also see the approaching technological scheme of technical paper publication.The utility model designs a kind of new structure part and is contained on the wear-resisting gravel pump main shaft, has improved the force-bearing situation of main shaft greatly, and to the gravel pump drive technology of high-power, the utility model is a kind of technological innovation.

[goal of the invention] is to provide a kind of wear-resisting gravel pump main shaft with loose collar, do not change the intensity and the transmission efficiency of main shaft, improves the wear-resisting gravel pump main shaft life-span of high-power, and the working efficiency of loading and unloading main shaft significantly improves.

[technological scheme] accompanying drawings is as follows: the wear-resisting gravel pump main shaft of band loose collar, its assembly comprise main shaft 1, bearing and setscrew nut and band sealed-bearing lid composition.

The assembly structure of main shaft and assembly relation is, bearing 7 is enclosed within on the main shaft 1 and is close to the shaft shoulder from left end, with one or more setscrew nut 5 screwed in place.Be enclosed within on the main shaft 1 from left end with band sealed-bearing lid 4, with the standard coupling with bearing cap 4 be fixed on husky pump assembly cover 6 and assembly base 8 on; The coupling 2 that driving gear 3 is housed is enclosed within on the main shaft 1 from left end, coupling 2 location is installed with flat key;

Bearing 9,10 is enclosed within on the main shaft 1 and is close to the shaft shoulder from right-hand member, uses the setscrew nut screwed in place; Put spacer sleeve 12 with band sealed-bearing lid 11 and be enclosed within on the main shaft 1 together, bearing cap 11 is fixed on husky pump assembly lid 6 and the assembly base 8 with the standard coupling; Before main shaft 1 shrunk-on disc 14, two semicircular loose collars 13 are enclosed within on the main shaft 1 near spacer sleeve 12 usefulness bolts.

[good effect] the utility model adopts more reasonably loose collar structure, and its trapezoid cross section tapered configuration becomes the loading and unloading of main shaft and is easy to.When having changed large-scale shell pump installation or maintenance, the situation that the loading and unloading main shaft assembly is difficult especially.During loading and unloading the utility model main shaft, as long as the bolt on the loose collar is unloaded, prize loose collar with bottle opener then, it is very light that remaining work becomes.Because the working efficiency of loading and unloading main shaft significantly improves, and has also prolonged the wear-resisting gravel pump main shaft life-span simultaneously.

[description of drawings]: Fig. 1 is the total schematic representation of the utility model assembly structure; Wherein be denoted as: the 1-main shaft; The 2-coupling; The 3-gear; The bearing cap of 4-band oil sealing; The 5-nut, one or more; 6-assembly lid; The 7-bearing; 8-assembly base; The 9-bearing; The 10-bearing; The bearing cap of 11-band oil sealing; 12-prevents the tension spacer sleeve; The 13-semicircle, be the loose collar of trapezoidal tapered configuration with bolton, transverse cross-sectional profile; The 14-impeller; The 15-bearing cap.

Fig. 2-a is the part left view of loose collar 13, and Fig. 2-b is the part plan view of loose collar 13; 16-loose collar trapezoid cross section taper angle wherein, 2-89 °.

[embodiment]: by the technological scheme of this specification, but component such as cooperation processing, purchase finished product standard coupling and bearing, band sealed-bearing lid, gear; Bearing 7 can be selected 322 type single-row ball bearings or other standard rolling bearings for use, and bearing 9 can be selected 3622 biserial tappered roller bearings or other standard rolling bearings for use, and bearing 10 can be selected 7622 single-row tappered roller bearings or other standard rolling bearings for use; The countries concerned's standard according to Machine Design and casting processing standard can process the utility model series product.

Claims

1, the wear-resisting gravel pump main shaft of band loose collar, particularly with the wear-resisting gravel pump main shaft of loose collar, its assembly comprises main shaft, bearing and setscrew nut and band sealed-bearing lid composition, it is characterized in that:

Upward with fastening piece two loose collars (13) are sleeved on the main shaft (1) at main shaft (1), go up loose collar (13) at main shaft (1) and be positioned between spacer sleeve (12) and the impeller sleeve near spacer sleeve (12).

2, the wear-resisting gravel pump main shaft of band loose collar according to claim 1 is characterized in that:

Described loose collar (13) is that semicircle part, its transverse cross-sectional profile are trapezoidal tapered configuration; 2 °-89 ° of described trapezoid cross section taper angles.