CN203532669U

CN203532669U - Welded eccentric gear

Info

Publication number: CN203532669U
Application number: CN201320653590.9U
Authority: CN
Inventors: 孙静文; 陆召庭
Original assignee: WORLD PRECISE MACHINERY (CHINA) CO Ltd
Current assignee: WORLD PRECISE MACHINERY (CHINA) CO Ltd
Priority date: 2013-10-23
Filing date: 2013-10-23
Publication date: 2014-04-09
Anticipated expiration: 2023-10-23

Abstract

The utility model discloses a welded eccentric gear. The welded eccentric gear comprises a gear ring, a supporting ring, a balance body, a middle shaft barrel, and eccentric bodies which are arranged at the two ends of the lower side of the middle shaft barrel respectively. The outer circle of the supporting ring is welded in an inner hole of the gear ring, and an inner hole of the supporting ring is arranged in the middle of the middle shaft barrel in a sleeved mode and is welded with the middle of the middle shaft barrel. The balance body placed on one side of a hub of the supporting ring is welded in the middle of the upper side of the middle shaft barrel, and is welded with the outer circle of the middle shaft barrel and the supporting ring respectively. Each eccentric body comprises a connecting rod inner ring, a circular lining plate, a front inner supporting plate and a rear inner supporting plate. Each circular lining plate is welded inside the corresponding connecting rod inner ring and is welded with the outer circle of the middle shaft barrel, and the front inner supporting plates and the rear inner supporting plates are welded with reinforcing ribs on the two sides of the circular lining plates, the lower side of the middle shaft barrel and the supporting ring respectively. According to the welded eccentric gear, an original monoblock casting structure is changed into a welding structure which is formed by a plurality of parts in a welding mode, the structure is simple, assembling is convenient, production cost is low, the manufacturing cycle is short, and the rejection rate is greatly lowered.

Description

Welding type eccentricity gear

Technical field

The utility model relates to a kind of eccentric gear of press machine, and especially a kind of welding type eccentric gear of press machine, belongs to driver of press technical field.

Background technique

Eccentricity gear is a kind of special construction part that eccentric structure and gear are united two into one, and is the kernel component of press machine transmission system, drives offset connecting rod structure in transmission high pulling torque, and band movable slider pumps.Eccentricity gear on existing four point pressure machines adopts cast inblock structure conventionally, along with the stroke of a press strengthens, nominal pressure strengthens, small lot is increasing of many kinds of single-piece press machine product even, and eccentricity gear die manufacturing cost is more and more higher, and foundary loss rate is high, cause the eccentricity gear manufacturing cycle long, cost of production is high, has greatly affected delivery date and the overall performance of product, and the eccentricity gear of existing cast structure cannot meet the demand of product fast development.

Summary of the invention

The purpose of this utility model is to provide a kind of simple in structure, cost of production is low, the manufacturing cycle is short welding type eccentricity gear.

The utility model is achieved by the following technical programs:

A kind of welding type eccentricity gear, comprise gear ring, bracing ring, balanced body, middle beam barrel and be separately positioned on the eccentric body at middle beam barrel downside two ends, described bracing ring cylindrical is weldingly fixed in gear ring endoporus, and bracing ring inner hole sleeve is contained in middle beam barrel middle part, and soldered with middle beam barrel middle part; The balanced body that is arranged in bracing ring wheel hub one side is welded at beam barrel upside middle part, soldered with middle beam barrel cylindrical and bracing ring respectively; Described eccentric body comprises connecting rod inner ring, the interior fagging of circular lining plate and two of front and back, and circular lining plate is welded in connecting rod inner ring, and soldered with middle beam barrel cylindrical, and the interior fagging in two of front and back is soldered with circular lining plate both sides stiffening rib, middle beam barrel downside and bracing ring respectively.

The purpose of this utility model can also further realize by following technical measures.

Aforesaid welding type eccentricity gear, the throw of eccentric a between wherein said connecting rod inner ring center and middle beam barrel center is 290mm～310mm.

Aforesaid welding type eccentricity gear, wherein said balanced body is fan-shaped, and the balance plate superimposed by several piece is welded.

The utility model makes original cast inblock structure into formed by a plurality of weld parts welded structure, volume is little, simple in structure, easy to assembly, cost of production is low, and the manufacturing cycle is short, greatly reduces reject rate, improve the overall performance of press machine simultaneously, can adapt to the demand of product fast development.

Advantage and disadvantage of the present utility model, the non-limitative illustration by preferred embodiment below is for illustration and explanation, and these embodiments, only provide as an example with reference to accompanying drawing.

Accompanying drawing explanation

Fig. 1 is structural representation of the present utility model;

Fig. 2 is the left view of Fig. 1;

Fig. 3 is the A-A sectional view of Fig. 1.

Embodiment

Below in conjunction with drawings and Examples, the utility model is described in further detail.

As shown in FIG. 1 to 3, the utility model comprises gear ring 1, bracing ring 2, balanced body 3, middle beam barrel 4 and is separately positioned on the eccentric body 5 at middle beam barrel 4 downside two ends, bracing ring 2 cylindricals are weldingly fixed in gear ring 1 endoporus, bracing ring 2 inner hole sleeves are contained in middle beam barrel 4 middle parts, and soldered with middle beam barrel 4 middle parts.Balanced body 3, for balance eccentricity gear, makes eccentricity gear center of gravity remain on middle beam barrel 4 centers, and balanced body 3 is arranged on middle side part on middle beam barrel 4, is positioned at bracing ring 2 wheel hub left sides, soldered with middle beam barrel 4 cylindricals and bracing ring 2 respectively.Balanced body 3 is fan-shaped, by 2 superimposed balance plate 31 weldings, is formed.Eccentric body 5 comprises connecting rod inner ring 51, circular lining plate 52 and front interior fagging 53, fagging 54 in rear, circular lining plate 52 is welded in connecting rod inner ring 51 middle parts, and soldered with middle beam barrel 4 cylindricals, fagging 53 in before two, in after two, fagging 54 is symmetrical tilting in circular lining plate 53 both sides, between circular lining plate 53 and bracing ring 2, and respectively with circular lining plate 53, middle beam barrel 4 downside cylindricals and bracing ring 2 are welded and fixed, throw of eccentric a between connecting rod inner ring 51 centers and middle beam barrel 4 centers is 290mm～310mm, in the present embodiment, a is 300mm, circular lining plate 53 both sides are symmetrically welded respectively 4 short stiffening ribs 55 and 6 long stiffening ribs 56, be used for strengthening eccentricity gear intensity, fagging 53 in front, in rear, fagging 54 one end are soldered with corresponding long stiffening rib 55.

In addition to the implementation, the utility model can also have other mode of executions, and all employings are equal to the technological scheme of replacement or equivalent transformation formation, all drop in the protection domain of the utility model requirement.

Claims

1. a welding type eccentricity gear, it is characterized in that: comprise gear ring, bracing ring, balanced body, middle beam barrel and be separately positioned on the eccentric body at middle beam barrel downside two ends, described bracing ring cylindrical is weldingly fixed in gear ring endoporus, bracing ring inner hole sleeve is contained in middle beam barrel middle part, and soldered with middle beam barrel middle part; The balanced body that is arranged in bracing ring wheel hub one side is welded at beam barrel upside middle part, soldered with middle beam barrel cylindrical and bracing ring respectively; Described eccentric body comprises connecting rod inner ring, the interior fagging of circular lining plate and two of front and back, and circular lining plate is welded in connecting rod inner ring, and soldered with middle beam barrel cylindrical, and the interior fagging in two of front and back is soldered with circular lining plate both sides stiffening rib, middle beam barrel downside and bracing ring respectively.

2. welding type eccentricity gear as claimed in claim 1, is characterized in that: the throw of eccentric a between described connecting rod inner ring center and middle beam barrel center is 290mm～310mm.

3. welding type eccentricity gear as claimed in claim 1, is characterized in that: described balanced body is fan-shaped, and the balance plate superimposed by several piece is welded.