Electric furnace lifting device

Abstract

The utility model provides an electric furnace lifting device which comprises a frame body, a furnace base, a hearth body and a lifting assembly, the furnace base is fixed at the bottom of the frame body, the hearth body is arranged on the furnace base in a covering mode, the lifting assembly comprises a driving piece, a lead screw and a lead screw sleeve, the driving piece is fixed on the frame body, and the lead screw sleeve is sleeved on the lead screw. The driving part is fixed on the hearth body, connected with the lead screw and used for driving the lead screw to rotate in the vertical direction, the lead screw sleeve is fixed on the hearth body and arranged on the lead screw in a sleeving mode, and the driving part drives the lead screw to rotate and drives the lead screw sleeve and the hearth body to ascend and descend along the lead screw. According to the hearth lifting device, the driving piece, the lead screw and the lead screw sleeve are arranged, the hearth body is driven to ascend and descend in a lead screw transmission mode, compared with ascending and descending in a guide wheel chain mode in the prior art, the ascending and descending mode of the hearth lifting device is more stable, and the hearth body does not incline or shake.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of electric furnace manufacturing, especially to an electric furnace lifting device. BACKGROUND

[0002] The electric furnace is the electric furnace that joul heat generated by electric current through conductor is heat source, and it can be divided into direct heating and indirect heating according to electric heating generation mode, in direct heating electric furnace, electric current directly passes through material, and because electric heating power is concentrated in material itself, so material heating is very fast, and it is suitable for the process requiring fast heating, for example, the heating of forging billet.The overall lifting type electric furnace is vertical structure, and the hearth body is arranged on the upper portion of the mounting support, and the hearth body is driven by the lifting mechanism to lift and cooperate with the furnace bottom to carry out material heating operation.

[0003] For example, the patent CN101876507B provides a bell jar type lifting electric furnace, which comprises a heating furnace body, a heating body is arranged in the heating furnace body, a portal is arranged above the heating furnace body, the upper portion of the portal is a crossbeam, a longitudinal support is arranged at each end of the crossbeam, a guide rail is arranged on the inner side of each longitudinal support, guide rail wheels connected with the guide rails are arranged on both sides of the heating furnace body; a speed reducer is arranged on one side of the portal, the speed reducer has two output shaft heads, a speed reducer hoisting driving sprocket is arranged on each output shaft head, a first hoisting sprocket and a second hoisting sprocket are arranged on both sides of the crossbeam, the first hoisting sprocket and one speed reducer hoisting driving sprocket are meshed with a first chain, one end of the first chain is connected with one side of the heating furnace body, the second hoisting sprocket and the other speed reducer hoisting driving sprocket are meshed with a second chain, the other end of the second chain is connected with the other side of the heating furnace body.

[0004] The above lifting electric furnace has the following problems: it drives the heating furnace body to lift by the way of guide wheels and chains, but the furnace body will be unevenly stressed and will shake during lifting. UTILITY MODEL CONTENTS

[0005] Therefore, it is necessary to provide an electric furnace lifting device, which can solve the problem of shaking of the hearth body during lifting.

[0006] The utility model provides an electric furnace lifting device, which comprises:

[0007] A frame body;

[0008] A furnace base fixed to the bottom of the frame body;

[0009] A hearth body covered on the furnace base; and

[0010] The lifting assembly comprises a driving member, a screw rod and a screw rod sleeve, the driving member is fixed on the frame body and connected with the screw rod for driving the screw rod to rotate in the vertical direction, and the screw rod sleeve is fixed on the hearth body and sleeved on the screw rod, the driving member drives the screw rod to rotate, and drives the screw rod sleeve and the hearth body to lift along the screw rod.

[0011] In other embodiments, the number relationship between the screw rod and the driving member is two to one, and the screw rod is arranged on the opposite sides of the hearth body.

[0012] In other embodiments, the driving member comprises a driving motor and two transmission rods, the driving motor is fixed on the frame body, the two transmission rods are rotatably fixed on the frame body, one end of the two transmission rods is engaged with the output end of the driving motor, and the other end of the two transmission rods is respectively engaged with the two screw rods.

[0013] In other embodiments, the frame body comprises a vertical frame and a horizontal frame, the vertical frame is vertically arranged on a reliable ground, the horizontal frame is arranged on the top of the vertical frame in the horizontal direction, the driving member is fixed on the horizontal frame, and the furnace base and the hearth body are arranged below the horizontal frame.

[0014] In other embodiments, the screw rod is rotatably fixed on the vertical frame, one end of the screw rod is engaged with the end of the transmission rod, and the other end of the screw rod is rotatably fixed on the vertical frame.

[0015] In other embodiments, the lifting assembly further comprises a plurality of guides, the guides are fixed on the frame body and connected with the hearth body to guide the hearth body to lift.

[0016] In other embodiments, the guide comprises a guide cylinder and a guide rod, the guide rod is fixed on the vertical frame in the vertical direction, and the guide cylinder is sleeved on the guide rod and fixed with the hearth body.

[0017] In other embodiments, the furnace base comprises a bottom plate and a furnace body support table, the bottom plate is arranged below the frame body, the furnace body support table is fixed on the bottom plate, the bottom plate is matched with the hearth body, and an enclosed space containing the furnace body support table and the furnace body is formed.

[0018] In other embodiments, the hearth body comprises an open-bottom box, and the two sides of the box are provided with fixed ends for fixing the screw rod sleeves.

[0019] In other embodiments, the box is embedded with an observation window for observing the inside of the box.

[0020] The beneficial effects of the utility model are:

[0021] In the utility model, including frame body, furnace base, hearth body and lifting assembly, the furnace base is fixed at the bottom of the frame body, the hearth body cover is located on the furnace base, the lifting assembly includes drive part, lead screw and lead screw sleeve, the drive part is fixed on the frame body and is connected with the lead screw which is vertically arranged, is used for driving the lead screw rotation, the lead screw sleeve is fixed on the hearth body and is sleeved on the lead screw, the drive part drives the lead screw rotation, drives the lead screw sleeve and the hearth body along the lead screw lifting.In the utility model, drive part, lead screw and lead screw sleeve are arranged, the hearth body is driven to lift by the mode of lead screw transmission, compared with the mode of guide pulley chain lifting in the prior art, the lifting mode of the utility model is more stable, and the hearth body will not appear skew, shake condition. BRIEF DESCRIPTION OF DRAWINGS

[0022] In order to more clearly illustrate the technical scheme in the embodiment of the utility model, the drawings needed to be used in the embodiment description will be briefly introduced, and obviously, the drawings in the following description are only some embodiments of the utility model, and other drawings can be obtained according to these drawings without the creative labor for the ordinary skilled in the art.

[0023] Fig. 1 It is the structural schematic diagram of the furnace lifting device in the utility model;

[0024] Fig. 2 It is the structural schematic diagram of another state of the furnace lifting device in the utility model;

[0025] Fig. 3 It is the sectional structure schematic diagram of the furnace lifting device in the utility model;

[0026] 1-frame body, 11-vertical stand, 12-cross stand, 2-furnace base, 21-bottom plate, 22-furnace body support table, 3-hearth body, 31-box body, 32-observation window, 4-lifting assembly, 41-drive part, 411-drive motor, 412-transmission rod, 42-lead screw, 43-lead screw sleeve, 44-guide, 441-guide cylinder, 442-guide rod. DETAILED DESCRIPTION

[0027] The preferred embodiments of the utility model will be specifically described below in combination with the drawings, wherein the drawings constitute a part of the present application, and are used together with the embodiments of the utility model to explain the principles of the utility model, and are not used to limit the scope of the utility model.

[0028] As Figs. 1-3The utility model discloses an electric furnace lifting device, which comprises a frame body 1, a furnace base 2, a furnace chamber body 3 and a lifting assembly 4, the furnace base 2 is fixed at the bottom of the frame body 1, the furnace chamber body 3 is covered on the furnace base 2, the lifting assembly 4 comprises a driving part 41, a lead screw 42 and a lead screw sleeve 43, the driving part 41 is fixed on the frame body 1 and connected with the lead screw 42, for driving the lead screw 42 to rotate in the vertical direction, the lead screw sleeve 43 is fixed on the furnace chamber body 3 and sleeved on the lead screw 42, the driving part 41 drives the lead screw 42 to rotate, drives the lead screw sleeve 43 and the furnace chamber body 3 to lift along the lead screw 42.

[0029] In the utility model, driving part 41, lead screw 42 and lead screw sleeve 43 are arranged, the furnace chamber body 3 is lifted by the mode of lead screw 4 transmission, compared with the mode of guide pulley chain in the prior art, the lifting mode of the utility model is more stable, and the furnace chamber body 3 will not be inclined and shake.

[0030] Specifically, the frame body 1 comprises a vertical frame 11 and a horizontal frame 12, the vertical frame 11 is vertically arranged on the reliable ground, and the horizontal frame 12 is arranged on the top of the vertical frame 11 in the horizontal direction.

[0031] Specifically, the furnace base 2 comprises a bottom plate 21 and a furnace body support table 22, the bottom plate 21 is arranged below the frame body 1, the furnace body support table 22 is fixed on the bottom plate 21, the bottom plate 21 is matched with the furnace chamber body 3, and an enclosed space for accommodating the furnace body support table 22 and a furnace body is formed.

[0032] Further, a sealing strip is arranged on the side wall circumferential surface of the bottom plate 21, for abutting and forming a seal with the inner wall of the furnace chamber body 3.

[0033] Specifically, the furnace chamber body 3 comprises an open-bottom box body 31, and both sides of the box body 31 are provided with fixed ends for fixing the lead screw sleeve 43.

[0034] Further, a heat insulation layer is arranged on the inner wall of the box body 31, for insulating the heat generated by the furnace body. On the one hand, heat dissipation is avoided, and energy consumption is improved. On the other hand, the high temperature is avoided to cause a safety hazard to personnel outside the box body 31.

[0035] Further, an observation window 32 is embedded on the box body 31, and a user can observe the condition of the furnace body inside the box body 31 through the observation window 32.

[0036] In order to improve the stability of the lifting of the box 31, in the embodiment, the number of the lead screw 42 and the driving member 41 is two to one. The lead screw 42 is arranged on the opposite sides of the hearth body 3. When lifting, the lead screw 42 can exert the lifting force from at least two sides of the hearth body 3, so that the hearth body 3 can be lifted stably.

[0037] Further, the driving member 41 comprises a driving motor 411 and two transmission rods 412. The driving motor 411 is fixed on the cross frame 12, and the two transmission rods 412 are rotatably fixed on the cross frame 12. One end of the two transmission rods 412 is engaged with the output end of the driving motor 411, and the other end of the two transmission rods 412 is engaged with the two lead screws 42 respectively.

[0038] Further, the lead screw 42 is rotatably fixed on the stand 11 in the vertical direction. One end of the lead screw 42 is engaged with the end of the transmission rod 412, and the other end of the lead screw 42 is rotatably fixed on the stand 11. The lead screw 42 rotates under the driving of the driving member 41.

[0039] Further, the lead screw sleeve 43 is sleeved on the lead screw 42 and fixed on the hearth body 3. The driving member 41 drives the lead screw 42 to rotate, drives the lead screw sleeve 43 to ascend and descend along the lead screw 42, and further drives the hearth body 3 to ascend and descend along the lead screw 42, so that the heating furnace can be opened or closed.

[0040] Further, the lifting assembly 4 further comprises a plurality of guides 44. The guides 44 are fixed on the frame body 1 and connected with the hearth body 3, so as to guide the hearth body 3 to ascend and descend, and the hearth body 3 can be lifted stably.

[0041] Further, the guide 44 comprises a guide cylinder 441 and a guide rod 442. The guide rod 442 is fixed on the stand 11 in the vertical direction, and the guide cylinder 441 is sleeved on the guide rod 442 and fixed on the hearth body 3. When the hearth body 3 ascends and descends, the guide rod 442 and the guide cylinder 441 can guide the ascending and descending direction of the hearth body 3, so that the hearth body 3 can not be uneven in the process of ascending and descending.

[0042] The utility model has the advantages of:

[0043] In the utility model, drive piece, screw rod and screw rod sleeve are arranged, the furnace body is driven to lift by the mode of screw rod transmission, compared to the mode of guide pulley chain in the prior art, the lifting mode of the utility model is more stable, and the furnace body will not be inclined or shake.

[0044] The above is only the preferred specific implementation of the utility model, but the protection scope of the utility model is not limited to this, any person skilled in the art can easily think of the change or replacement in the technical range disclosed by the utility model, which should be covered in the protection scope of the utility model.

Claims

1. An electric range lift comprising: The utility model relates to a furnace, which comprises: a frame; a furnace base fixed on the bottom of the frame; a furnace body covered on the furnace base; and a lifting assembly comprising a driving member, a lead screw and a lead screw sleeve, the driving member being fixed on the frame and connected with the lead screw for driving the lead screw to rotate in the vertical direction, the lead screw sleeve being fixed on the furnace body and sleeved on the lead screw, the driving member driving the lead screw to rotate and driving the lead screw sleeve and the furnace body to lift along the lead screw. The number of the lead screw is twice that of the driving member, and the lead screw is arranged on the opposite sides of the furnace body.

2. The electric furnace lifting device as claimed in claim 1, wherein, The driving member comprises a driving motor and two transmission rods, the driving motor being fixed on the frame, the two transmission rods being rotatably fixed on the frame, one end of each of the two transmission rods being engaged with the output end of the driving motor, and the other end of each of the two transmission rods being engaged with a lead screw.

3. The electric furnace lifting device according to claim 1 or 2, characterized in that, The frame comprises a vertical frame and a horizontal frame, the vertical frame being vertically arranged on a reliable ground, the horizontal frame being horizontally arranged on the top of the vertical frame, the driving member being fixed on the horizontal frame, and the furnace base and the furnace body being arranged below the horizontal frame.

4. The electric furnace lift as set forth in claim 3, wherein, The lead screw is rotatably fixed on the vertical frame, one end of the lead screw being engaged with the end of the transmission rod, and the other end of the lead screw being rotatably fixed on the vertical frame.

5. The electric furnace lift as set forth in claim 4, wherein, The lifting assembly further comprises a plurality of guides, the guides being fixed on the frame and connected with the furnace body for guiding the furnace body to lift.

6. The electric furnace lift as set forth in claim 5, wherein, The guide comprises a guide cylinder and a guide rod, the guide rod being fixed on the vertical frame in the vertical direction, and the guide cylinder being sleeved on the guide rod and fixed on the furnace body.

7. The electric furnace lift as set forth in claim 6, wherein, The furnace base comprises a bottom plate and a furnace body support table, the bottom plate being arranged below the frame, the furnace body support table being fixed on the bottom plate, the bottom plate being matched with the furnace body to form an enclosed space for accommodating the furnace body support table and the furnace body.

8. The electric furnace lift of claim 1, wherein, The furnace body comprises an open-bottom box, both sides of the box being provided with fixed ends for fixing the lead screw sleeves.

9. The electric furnace lift of claim 1 wherein, An observation window is embedded on the box for observing the inside of the box.

10. The electric furnace lift of claim 9, wherein, ​

Images