CN209035424U - A kind of casting of evaporative pattern Centrifugal vibration and molding sand jolt ramming all-in-one machine - Google Patents

Abstract

The utility model relates to casting equipment fields, specifically a kind of evaporative pattern Centrifugal vibration casting and molding sand jolt ramming all-in-one machine, including the main shaft being distributed along the vertical direction, the lower end of main shaft is rotatably provided on pedestal, the upper end of main shaft is fixed with the turntable of horizontal distribution, it is equipped with the driving device for driving turntable to rotate on pedestal, exciting device is equipped on turntable.The utility model can avoid being segregated during Invensment centrifugal casting, and oxide etc. generates, and shortens the duration of pouring, improve casting efficiency, during molding sand jolt ramming, avoid the mass defects such as long packet, the case that rises.

Description

A kind of casting of evaporative pattern Centrifugal vibration and molding sand jolt ramming all-in-one machine

Technical field

The utility model relates to casting equipment field, specifically a kind of evaporative pattern Centrifugal vibration casting and molding sand jolt ramming All-in-one machine.

Background technique

Centrifugal casting technique can be used for producing the products such as spun cast pipe, cylinder cap, roll, axle sleeve, bearing shell, according to casting mold axis Space position, centrifugal casting machine can be divided into horizontal and two kinds vertical, can be divided into water cooling and thermodyn process according to production method. Compared with sand casting: 1, the consistency of centrifugal casting casting is high, and the scarce limit such as stomata slag inclusion is less；2, with type core when producing casting It is less；3, almost without the consumption of the molten metal of running gate system and runner system, product yield is higher；4, by means of centrifugation masterpiece It has been improved the mobility of casting process metal, it can be with production thin-section casting；5, production has the casting of rotation center such as to manage, take turns It is more convenient.

But there is also following disadvantages for centrifugal casting technique: 1, alloying component cannot mutually be melted or early solidification precipitate Density be also easy to produce segregation when differing larger with metal liquid；2, the casting inner surface produced is rougher, there is oxide and slag Deng generation, and hole size precision is not high, it is sometimes desirable to be machined out to inner wall；3, can be only applied to shape simply has rotation The castings production of shaft axis, application surface are relatively narrow；4, the duration of pouring is longer, by taking centrifugal casting pipe as an example, DN80--300 1-- 2min, DN400--700 are 2--4 minutes, and DN800-1000 is 6--8 minutes, and the duration of pouring lengthens the danger that will increase operation Property；5, the price of centrifugal casting machine is higher, and the device is complicated, complicated for operation, and precision is poor.

The case plain bumper in the prior art that does is vibrated under the action of vibrating motor exciting force simultaneously.Make sand stream It is dynamic.But some biggish position centers of plane or the corner of some complicated casting, type under the action of exciting force Sand cannot reach the position, lead to the mass defects such as long packet, the case that rises occur.

Utility model content

The utility model is intended to provide a kind of casting of evaporative pattern Centrifugal vibration and molding sand jolt ramming all-in-one machine, is centrifuged in evaporative pattern It avoiding being segregated in casting process, oxide etc. generates, and shortens the duration of pouring, casting efficiency is improved, during molding sand jolt ramming, Avoid the mass defects such as long packet, the case that rises.

In order to solve the above technical problems, the technical solution adopted in the utility model are as follows: a kind of evaporative pattern Centrifugal vibration casting It makes and molding sand jolt ramming all-in-one machine, including the main shaft being distributed along the vertical direction, the lower end of main shaft is rotatably provided on pedestal, main shaft Upper end be fixed with the turntable of horizontal distribution, the driving device for driving turntable to rotate is equipped on pedestal, on turntable Equipped with exciting device.

Preferably, it is equipped with the bracket for accepting simultaneously tight flask on the top surface of turntable, is equipped on bracket for sandbox The track of sliding.

Preferably, exciting device includes the multiple shock electric machines being annularly evenly distributed on bracket, in bracket and turntable Between be equipped with resilient cushion.

Preferably, main shaft is hollow shaft, and corresponding offer is connected to spindle cavity on turntable, resilient cushion and bracket Through-hole.

Preferably, further include for avoid turntable generate eccentric rotary position-limit mechanism, position-limit mechanism includes uniform intervals Multiple first idler wheels of turntable outer rim are distributed in, the wheel shaft of the first idler wheel is fixed on the base along the vertical direction, the first idler wheel The side wall of wheel rim and turntable rotatably cooperates.

Preferably, position-limit mechanism further includes that the limit annulus being coaxially fixed on turntable bottom surface and being evenly spaced on is limiting Multiple second idler wheels of circle of position ring inner edge, the wheel shaft of the second idler wheel are fixed on the base along the vertical direction, the wheel rim of the second idler wheel Rotatably cooperate with the inner edge of limit annulus.

It preferably, further include the supporting mechanism for being used to support turntable rotation, supporting mechanism includes coaxially being distributed in a ring Multiple third idler wheels of turntable bottom, the wheel shaft of third idler wheel are distributed in the horizontal direction and fix with pedestal, the wheel of third idler wheel The bottom of edge and turntable rotatably cooperates.

Preferably, it is equipped with the axis hole for main axis on pedestal, is equipped between main shaft and axis hole and matches for main axis The bearing of conjunction.

Preferably, the outer rim of turntable is equipped with outer gear ring, and uniform intervals engagement is connected with multiple transmission gears in outer gear ring, passes Moving gear is connect with the first driving motor.

Preferably, it is equipped with belt wheel on main shaft, and is rotated by the second driving motor by transmission belt driving spindle.

Beneficial effect

The evaporative pattern Centrifugal vibration of the utility model is cast and molding sand jolt ramming all-in-one machine, can make in lost foam casting production Sandbox jolt ramming and centrifugal casting are completed on the same device, improve the production efficiency of casting.

During centrifugal casting, molten metal is flowed under the action of centrifugal force and exciting force dual dynamics, a side The mold-filling capacity of molten metal can be improved in face, makes the smooth fracture increased, and crystal grain more refines, and further increases product Consistency；On the other hand, gas and slag can be discharged under the action of centrifugal force and exciting force, improve the quality of liquid, thus Improve properties of product.

During jolt ramming molding sand, can effectively improve lost-foam casting model vanning when molding sand filling dynamics, reduce by It fills not in place in molding sand and generates the mass defects as caused by bin packing such as length, the case that rises.

Detailed description of the invention

Fig. 1 is the longitudinal profile structure schematic of the utility model；

Fig. 2 is the top view of the utility model；

Marked in the figure: the 1, first idler wheel, 2, third idler wheel, 3, limit annulus, the 4, second idler wheel, 5, turntable, 6, resilient cushion, 7, bracket, 8, track, 9, shock electric machine, 10, main shaft, 11, bearing, 12, pedestal.

Specific embodiment

As shown in Figures 1 and 2, a kind of evaporative pattern Centrifugal vibration casting of the utility model and molding sand jolt ramming all-in-one machine, packet The main shaft 10 being distributed along the vertical direction is included, the lower end of main shaft 10 is rotatably provided on pedestal 12, and pedestal 12 is horizontally set on vehicle Between stablize support to provide in pedestal or melt pit.The upper end of main shaft 10 is fixed with the turntable 5 of horizontal distribution, sets on pedestal 12 There is the driving device for driving turntable 5 to rotate, exciting device is equipped on turntable 5.The cooperation of driving device and exciting device, Molding sand filling dynamics is improved so that acting on during sandbox jolt ramming by centrifugal force；So that being made during centrifugal casting by exciting With the smooth fracture that will increase, crystal grain is more refined, and further increases the consistency of product.And sandbox jolt ramming is poured with centrifugation Interval is completed on the same device for casting, is avoided sandbox in the reciprocal transhipment of each workshop section, is saved manpower and material resources, improve Production efficiency.

Pedestal 12 is circle or rectangular, is mixed and is transported using welded steel, moulding by casting, steel screw connection or above method With being made.Settable adjustment 10 gradient of main shaft of pedestal 12 and then the adjustment mechanism for adjusting 5 level of turntable.In the present embodiment 12 center of pedestal offer the axis hole being rotatably assorted for 10 lower end of main shaft, settable 1-2 bearing 11 is used in axis hole In the stability for keeping main shaft 10.

Turntable 5 is circle, and 0.5 meter of diameter or more, thickness is at 10 centimetres or more.It is equipped on the top surface of turntable 5 for holding The bracket 7 for connecing simultaneously tight flask is equipped with the track 8 for sandbox convenient for sliding disengaging on bracket 7.Exciting device includes annular in shape The height of the multiple shock electric machines 9 and shock electric machine 9 that are evenly distributed on bracket 7 is lower than 8 plane of track, and shock electric machine 9 is can Frequency modulation (0-200HZ or more) or fixed frequency.Resilient cushion 6 is additionally provided between bracket 7 and turntable 5, resilient cushion 6 can be used Abrasive rubber material production, to avoid or reduce interference of multiple shock electric machines 9 for 5 stable rotation of turntable.

Main shaft 10 is hollow shaft, and corresponding offer is connected to 10 cavity of main shaft on turntable 5, resilient cushion 6 and bracket 7 Through-hole.In lost foam casting casting process, the inner cavity of hollow shaft and multiple corresponding through-holes are born for what receiving was connect with sandbox Pressure pipeline.The rotation of turntable 5 in the utility model can be accomplished in several ways: outer gear ring can be set in the outer rim of turntable 5, Uniform intervals engagement is connected with multiple transmission gears in outer gear ring, and transmission gear is connect with the first driving motor.It can also be in main shaft Belt wheel is set on 10, and is rotated by the second driving motor by transmission belt driving spindle 10.First driving motor and the second driving Speed regulating motor or variable-frequency motor may be selected in motor.

And in order to guarantee the stability in 5 rotation process of turntable, the utility model further includes for avoiding turntable 5 from generating partially The position-limit mechanism of heart rotation and the supporting mechanism for being used to support the rotation of turntable 5.

Position-limit mechanism include be evenly spaced on 5 outer rim of turntable multiple first idler wheels 1 and be coaxially fixed on 5 bottom of turntable Limit annulus 3 on face and it is evenly spaced on multiple second idler wheels 4 in limit 3 inner edge of annulus.The wheel shaft edge of first idler wheel 1 Vertical direction is fixed on pedestal 12, and the wheel rim of the first idler wheel 1 rotatably cooperates with the side wall of turntable 5.The wheel shaft of second idler wheel 4 It is fixed on pedestal 12 along the vertical direction, the inner edge of the wheel rim and limit annulus 3 of the second idler wheel 4 rotatably cooperates.Supporting mechanism, Supporting mechanism includes the multiple third idler wheels 2 for being coaxially distributed in 5 bottom of turntable in a ring, and the wheel shaft of third idler wheel 2 is along level side To distribution and fixed with pedestal 12, the wheel rim of third idler wheel 2 rotatably cooperates with the bottom of turntable 5.The rolling of first idler wheel 1, second It is clearance fit between wheel 4 and third idler wheel 2 and turntable 5, it is intended that correct and generate by a relatively large margin inclined in 5 rotation process of turntable The heart and vibration.

Claims (10)

1. a kind of evaporative pattern Centrifugal vibration casting and molding sand jolt ramming all-in-one machine, it is characterised in that: including what is be distributed along the vertical direction Main shaft (10), the lower end of main shaft (10) are rotatably provided on pedestal (12), and the upper end of main shaft (10) is fixed with horizontal distribution Turntable (5), on pedestal (12) be equipped with for drive turntable (5) rotate driving device, on turntable (5) be equipped with exciting fill It sets.

2. a kind of evaporative pattern Centrifugal vibration casting according to claim 1 and molding sand jolt ramming all-in-one machine, it is characterised in that: The top surface of turntable (5) is equipped with the bracket (7) for accepting simultaneously tight flask, and the rail slided for sandbox is equipped on bracket (7) Road (8).

3. a kind of evaporative pattern Centrifugal vibration casting according to claim 2 and molding sand jolt ramming all-in-one machine, it is characterised in that: swash Vibrating device includes the multiple shock electric machines (9) being annularly evenly distributed on bracket (7), is set between bracket (7) and turntable (5) There are resilient cushion (6).

4. a kind of evaporative pattern Centrifugal vibration casting according to claim 3 and molding sand jolt ramming all-in-one machine, it is characterised in that: main Axis (10) is hollow shaft, and corresponding offer is connected to main shaft (10) cavity on turntable (5), resilient cushion (6) and bracket (7) Through-hole.

5. a kind of evaporative pattern Centrifugal vibration casting according to claim 1 and molding sand jolt ramming all-in-one machine, it is characterised in that: also Including for avoid turntable (5) generate eccentric rotary position-limit mechanism, position-limit mechanism include be evenly spaced on turntable (5) outside Multiple first idler wheels (1) of edge, the wheel shaft of the first idler wheel (1) are fixed on along the vertical direction on pedestal (12), the first idler wheel (1) The side wall of wheel rim and turntable (5) rotatably cooperates.

6. a kind of evaporative pattern Centrifugal vibration casting according to claim 5 and molding sand jolt ramming all-in-one machine, it is characterised in that: limit Position mechanism further includes the limit annulus (3) being coaxially fixed on turntable (5) bottom surface and is evenly spaced in limit annulus (3) Multiple second idler wheels (4) of edge, the wheel shaft of the second idler wheel (4) are fixed on along the vertical direction on pedestal (12), the second idler wheel (4) Wheel rim and the inner edge of limit annulus (3) rotatably cooperate.

7. a kind of evaporative pattern Centrifugal vibration casting according to claim 1 and molding sand jolt ramming all-in-one machine, it is characterised in that: also Supporting mechanism including being used to support turntable (5) rotation, supporting mechanism include coaxially being distributed in the more of turntable (5) bottom in a ring A third idler wheel (2), the wheel shaft of third idler wheel (2) is distributed in the horizontal direction and, the wheel of third idler wheel (2) fixed with pedestal (12) The bottom of edge and turntable (5) rotatably cooperates.

8. a kind of evaporative pattern Centrifugal vibration casting according to claim 1 and molding sand jolt ramming all-in-one machine, it is characterised in that: Pedestal (12) is equipped with the axis hole rotated for main shaft (10), is equipped between main shaft (10) and axis hole and is rotatably assorted for main shaft (10) Bearing (11).

9. a kind of evaporative pattern Centrifugal vibration casting according to claim 1 and molding sand jolt ramming all-in-one machine, it is characterised in that: turn The outer rim of disk (5) is equipped with outer gear ring, and uniform intervals engagement is connected with multiple transmission gears in outer gear ring, and transmission gear and first drive Dynamic motor connection.

10. a kind of evaporative pattern Centrifugal vibration casting according to claim 1 and molding sand jolt ramming all-in-one machine, it is characterised in that: It is equipped with belt wheel on main shaft (10), and is rotated by the second driving motor by transmission belt driving spindle (10).