CN205907345U

CN205907345U - Well formula is work piece hoist for cementation furnace

Info

Publication number: CN205907345U
Application number: CN201620718558.8U
Authority: CN
Inventors: 田凤阁
Original assignee: Ito (dalian) Co Ltd
Current assignee: Ito (dalian) Co Ltd
Priority date: 2016-07-11
Filing date: 2016-07-11
Publication date: 2017-01-25
Anticipated expiration: 2026-07-11

Abstract

Well formula is work piece hoist for cementation furnace, include that the ring sum is fitted with a contraceptive ring down, the runner band with fit with a contraceptive ring to concentric and mutual parallel arrangement, vertical evenly distributed had a plurality of connections to erect the roof beam between the ring sum was fitted with a contraceptive ring under, it has the inner ring outwards to distribute in proper order from the center in the runner band inboard, ring in the middle of the ring sum second in the middle of first, an inner ring, in the middle of first in the middle of the ring sum second ring all with the runner band in the coplanar, at the inner ring, ring in the middle of first, there is the diametric connection muscle in the middle of the second between the ring sum runner band, encircle in the middle of first, the strengthening rib that has radial setting in the middle of the second between the ring sum runner band, last ring sum runner band on axial same position department all be equipped with the opening, the straight flange that is parallel to each other that extends in the open -ended both sides are oriented, the circular arc transitional coupling is passed through to the interior end of straight flange. The hoist is heated and catches a cold among the heat treatment process, and the accessible opening obtains release and alleviates when taking place to be out of shape, has offset the internal stress, has overcome the phenomenon that cracks, has lengthened the life of hoist, has reduced manufacturing cost.

Description

Pit carburizing furnace Workpiece sling

Technical field

This utility model is related to a kind of pit carburizing furnace Workpiece sling, for lift workpiece and in pit carburizing furnace right Workpiece carries out heat treatment.

Background technology

At present, when workpiece enters in the hot place that carries out heating in pit carburizing furnace, need using suspender, workpiece to be sling, and send Enter in stove and heat, during heat treatment, suspender lifts workpiece all the time, that is, suspender carries out heat treated with workpiece simultaneously.Existing suspender knot Structure is as follows: as shown in Figure 1, 2: includes lower ring and the upper ring above lower ring, lower ring and upper ring are concentric and are parallel to each other Setting, is vertically evenly distributed with multiple connection vertical beams between lower ring and upper ring, is outwards sequentially distributed from center inside lower ring There are internal ring, the first middle ring and the second middle ring, internal ring, the first middle ring and the second middle ring are all in same plane with lower ring Interior, there is radially connected muscle between internal ring, the first middle ring, the second middle ring and lower ring, in the first middle ring, the second middle ring Have, and lower ring between, the reinforcement being radially arranged.Whole suspender is in cage structure, loads workpiece, multiple loadings during use into cage The suspender of workpiece mutually stacks and utilizes vertical loading board to insert in each suspender internal ring, is hung in stove by boom hoisting.Suspender with Workpiece experiences heat treatment process simultaneously, and all using this suspender when carrying out in hot place to workpiece every time, that is, suspender is Reusability. The suspender of this structure is being repeatedly heated, easily deformation and crackle in cooling procedure, therefore needs using after a period of time Change, suspender waste is big, increased production cost.

Content of the invention

The purpose of this utility model is that offer is a kind of is not likely to produce crackle, long service life, the well formula of reduction production cost Carburizer Workpiece sling, overcomes the deficiencies in the prior art.

Pit carburizing furnace Workpiece sling of the present utility model, including lower ring be located at upper ring above lower ring, lower ring with Upper ring is concentric and arranged in parallel, is vertically evenly distributed with multiple connection vertical beams, in lower ring between lower ring and upper ring Inner side has outwards been sequentially distributed internal ring, the first middle ring and the second middle ring from center, in the middle of internal ring, the first middle ring and second Ring is all in same plane with lower ring, has radially connected muscle between internal ring, the first middle ring, the second middle ring and lower ring, Have, between the first middle ring, the second middle ring and lower ring, the reinforcement being radially arranged, axial phase in described upper ring and a lower ring With being equipped with opening at position, there is the straight flange being parallel to each other extending internally the both sides of opening, and the inner termination of straight flange passes through circular arc Transition connects, and the projection in the axial direction of the opening on lower ring and upper ring overlaps, and described opening at least four is simultaneously circumferentially equal Even distribution.

Pit carburizing furnace Workpiece sling of the present utility model, due to having opening, heat treatment process on lower ring and upper ring Middle suspender is heated and catches a cold and can be released by opening when deforming and alleviate, and counteracts internal stress, overcomes generation and split The phenomenon of stricture of vagina, extends the service life of suspender, reduces production cost.

Brief description

Fig. 1 is the schematic front view of this utility model specific embodiment；

Fig. 2 is the schematic top plan view shown in Fig. 1；

Fig. 3 is the schematic front view of suspender in prior art；

Fig. 4 is the schematic top plan view shown in Fig. 3.

Specific embodiment

As shown in Figure 1, 2: pit carburizing furnace Workpiece sling of the present utility model, including lower ring 1 with above lower ring 1 Upper ring 2, lower ring 1 and upper ring 2 are concentric and arranged in parallel.Vertically it is evenly distributed with many between lower ring 1 and upper ring 2 Individual connection vertical beam 3.Outwards it has been sequentially distributed internal ring 4, the first middle ring 5 and the second middle ring 6 from center inside lower ring 1, interior Ring 4, the first middle ring 5 and the second middle ring 6 are all in same plane with lower ring 1.In internal ring 4, the first middle ring 5, second It is evenly distributed with radially connected muscle 7 between middle ring 6 and lower ring 1.Between the first middle ring 5, the second middle ring 6 and lower ring 1 It is evenly distributed with the reinforcement 8 being radially arranged.It is equipped with opening 9 at axial same position on upper ring 2 and lower ring 1, the two of opening 9 There is the straight flange 10 being parallel to each other extending internally side, and the inner termination of straight flange 10 passes through circular arc 11 transition connection, lower ring 1 and upper ring 2 On opening 9 projection in the axial direction overlap.Opening 9 at least four is simultaneously circumferentially uniformly distributed.

Pit carburizing furnace Workpiece sling of the present utility model, due to having opening 9 on lower ring 1 and upper ring 2, heat treated In journey, suspender is heated and catches a cold and can be released and alleviate by opening 9 is overall when deforming, and counteracts internal stress, overcomes The phenomenon cracking, extends the service life of suspender, reduces production cost.

Claims

1. a kind of pit carburizing furnace Workpiece sling, including lower ring (1) and the upper ring (2) above lower ring (1), lower ring (1) It is concentric and arranged in parallel with upper ring (2), between lower ring (1) and upper ring (2), be vertically evenly distributed with multiple connections Vertical beam (3), has outwards been sequentially distributed internal ring (4), the first middle ring (5) and the second middle ring from center inside lower ring (1) (6), internal ring (4), the first middle ring (5) and the second middle ring (6) are all in same plane with lower ring (1), internal ring (4), Have radially connected muscle (7) between first middle ring (5), the second middle ring (6) and lower ring (1), the first middle ring (5), second Have, between middle ring (6) and lower ring (1), the reinforcement (8) being radially arranged it is characterised in that: described upper ring (2) and lower ring (1) It is equipped with opening (9), there is the straight flange (10) being parallel to each other extending internally the both sides of opening (9), directly at upper axial same position The inner termination on side (10) is passed through circular arc (11) transition and is connected, the projection in the axial direction of the opening (9) on lower ring (1) and upper ring (2) Overlap, described opening (9) at least four is simultaneously circumferentially uniformly distributed.