Well type tempering furnace for processing toothed plate of crusher

Abstract

The invention discloses a crusher toothed plate processing well type tempering furnace which comprises a well type tempering furnace body, an inner furnace pipe, a lifting seat, a lifting arm and a furnace cover, the inner furnace pipe is installed in the well type tempering furnace body, the lifting seat is fixed to the outer furnace wall of the well type tempering furnace body, and the furnace cover is installed at the top of the lifting seat through the lifting arm; according to the invention, the lifting plate mechanism is arranged in the inner furnace pipe of the well-type tempering furnace body, and the toothed plate of the crusher is clamped in the bottom tray, the middle tray and the cover pressure plate in a manner that the bottom tray, the middle tray and the cover pressure plate are annularly distributed and are close to each other in an inclined manner; a large heated space exists between the crusher toothed plates which are annularly distributed and are close to each other in an inclined mode, so that the crusher toothed plates can be well heated, it is guaranteed that the crusher toothed plates can be well heated by the well type tempering furnace body, and the crusher toothed plates are guided and assisted by the guide frame mechanism, so that the service life of the crusher toothed plates is prolonged. And the lifting plate mechanism can be quickly lifted into the well type tempering furnace body.

Description

Technical Field

[0001] The invention relates to the technical field of crusher tooth plate processing, in particular to a crusher tooth plate processing pit type tempering furnace. Background Art

[0002] Heat treatment of the crusher tooth plate is one of the key links, which can improve the hardness and wear resistance of the tooth plate. Commonly used heat treatment processes include normalizing, normalizing and tempering, quenching and tempering, etc. Normalizing can improve the strength of the tooth plate, normalizing and tempering can improve the wear resistance of the tooth plate, and quenching and tempering can improve the strength and wear resistance of the tooth plate at the same time. When the crusher tooth plate is tempered, it is usually necessary to heat treat it in a pit tempering furnace;

[0003] The pit-type tempering furnace is also called the pit furnace. The pit furnace is a periodic operation furnace, which is suitable for the heat treatment of rods and long shaft parts. The structure of the pit furnace is: the furnace body is a cylindrical deep well, and the workpiece is vertically loaded into the furnace by a special crane for heating. The fuel used is usually gas and fuel oil. When electricity is used as the heat source, it is called a pit resistance furnace. The pit furnace is generally placed below the workshop floor level, and there are also those placed above the floor level, or half above and half below the floor level. The pit furnace is one of the main boiler forms in today's mechanical processing production. The processing effect of the pit furnace is better in the spherical treatment of carbon compounds in steel.

[0004] At present, when the crusher tooth plate is heat treated in a pit furnace, a hoisting machine usually lifts a disc-type hanger with tooth plates stacked on the surface of the hanger, and then the disc-type hanger is hoisted into the pit furnace for heat treatment. However, during the hoisting process of the hanger, the hoisting device and the clamping claw of the hoisting machine are connected by ropes, which are easy to swing during the process of the hanger being hoisted into the furnace. As a result, the hanger carrying the tooth plate often needs to be hoisted into the furnace position by the hoisting personnel based on experience when entering the furnace, which limits the efficiency of the tooth plate entering the furnace. In addition, the simple disc-type hanger lacks a dedicated placement structure for the placement of the tooth plate, which makes the tooth plate enter the pit tempering furnace with the hanger. The heat treatment position is poor, which further affects the heat treatment quality of the tooth plate. For this reason, we propose a pit tempering furnace for processing crusher tooth plates. Summary of the invention

[0005] The main purpose of the present invention is to provide a pit-type tempering furnace for processing crusher tooth plates, in which a hanging plate mechanism is arranged in the inner furnace of the pit-type tempering furnace body, and the hanging plate mechanism clamps the crusher tooth plates in the grooves that are distributed in an annular manner and are inclined to each other at the bottom tray, the middle tray and the cover pressure plate, and the middle tray is provided with a plug-in limit member, so that the limit member limits the crusher tooth plates at the upper and lower disk surfaces of the middle tray, so that the hanging plate mechanism can carry the crusher tooth plates stably in the inner furnace for heat treatment, and there is a large heating space between the crusher tooth plates that are distributed in an annular manner and are inclined to each other, so that the crusher tooth plates can be well heated, ensuring that the crusher tooth plates can be well tempered by the pit-type tempering furnace. The furnace body is heated, and the present invention further arranges a guide frame mechanism at the inner furnace core and furnace cover of the pit-type tempering furnace body, and the guide frame mechanism drives the furnace cover to rise and deflect with the motion trajectory of the lifting seat to pull the lifting chain outward, thereby pulling the V-shaped guide platform of the guide frame mechanism upward out of the inner furnace core, and V-shaped guide grooves for guiding are provided at the base plate, bottom tray, middle tray and cover pressure plate of the hanging plate mechanism, and then the hanging plate mechanism uses the V-shaped guide groove as a structure leaning against the V-shaped guide platform, so that the hanging plate mechanism can be guided into the furnace with the assistance of the V-shaped guide platform of the guide frame mechanism, thereby ensuring that the hanging plate mechanism equipped with the crusher tooth plate can be quickly hung into the inner furnace core of the pit-type tempering furnace body for heat treatment in the furnace, which can effectively solve the problems in the background technology.

[0006] To achieve the above object, the technical solution adopted by the present invention is:

[0007] A pit tempering furnace for processing tooth plates of a crusher, comprising a pit tempering furnace body, an inner furnace liner, a lifting seat, a lifting arm and a furnace cover, wherein the inner furnace liner is installed inside the pit tempering furnace body, and a lifting seat is fixed at the outer furnace wall of the pit tempering furnace body, and a furnace cover is installed on the top of the lifting seat through a lifting arm, and also comprises a hanging plate mechanism and a guide frame mechanism, wherein the hanging plate mechanism comprises a base plate, a rib plate, a bottom tray, a column, a T-shaped hanging head, a middle tray, a cover pressure plate, an upper groove A of a strip support, a lower groove of a strip limit, an upper groove of a strip pressure, an upper groove B of a strip support, a guide hole, a limit piece and a T-shaped limit plate, wherein a base plate is placed in the inner furnace liner, and a surface of the base plate is fixed to the lower surface of the bottom tray through a rib plate, and a column is fixed in the center of the upper surface of the bottom tray, A T-shaped hanging head is fixed on the top of the column body of the column, and a cover pressure plate and a middle tray are fixed downward in sequence outside the column below the T-shaped hanging head, and a strip support upper groove A and a strip limit lower groove are respectively opened on the upper and lower disk surfaces of the middle tray, and a strip support upper groove is opened in an annular distribution on the lower surface of the cover pressure plate above the strip support upper groove A, and a strip support upper groove B is opened in an annular distribution on the surface of the bottom tray below the strip limit lower groove, and a guide hole penetrating the middle tray is vertically opened between the groove walls of the strip support upper groove A and the strip limit lower groove, a crusher tooth plate is inserted between the strip support upper groove A and the strip pressure upper groove, and a limit piece for resisting the crusher tooth plate is inserted in the guide hole, and a T-shaped limit plate is fixed at three points on the surface of the middle tray outside the strip support upper groove A and the strip limit lower groove;

[0008] The guide frame mechanism includes a V-shaped guide groove, a V-shaped guide platform, an L-shaped guide block, an L-shaped guide groove, a T-shaped perforation, a T-shaped cylinder, a top connecting disk, a lifting chain and an upper locking disk. The surfaces of the base disk, the bottom tray, the middle tray and the cover pressure plate are penetrated with a V-shaped guide groove, and a V-shaped guide platform is vertically inserted into the V-shaped guide groove, L-shaped guide blocks are symmetrically fixed at the curved outer wall of the V-shaped guide platform, and an L-shaped guide groove for inserting the L-shaped guide block is vertically opened at the inner wall of the inner furnace tube, a T-shaped perforation is penetrated upward at the bottom of the V-shaped guide platform, and a T-shaped cylinder is inserted into the bottom of the T-shaped perforation, a top connecting disk is fixed at the upper tube mouth of the T-shaped cylinder, and a lifting chain is fixed to the upper disk surface of the top connecting disk, the chain body of the lifting chain extending out of the T-shaped perforation is fixed to the lower disk surface of the upper locking disk, and the upper locking disk is locked to the lower surface of the furnace cover by bolts.

[0009] Furthermore, the height of the V-shaped guide platform is less than the depth of the furnace chamber of the inner furnace, and the arc surface outer platform wall of the V-shaped guide platform fixes the block of the L-shaped guide block along the arc direction, and two groups of L-shaped guide grooves are symmetrically arranged in the inner furnace on one side of the V-shaped guide platform;

[0010] By adopting the above technical scheme, the V-shaped guide platform can enter the inner furnace shell for retraction, and the V-shaped guide platform can connect the arc surface outer platform wall of the protective cover to the inner furnace wall of the inner furnace shell for guiding and lifting. When the V-shaped guide platform is lifted and lowered by the lifting chain, the V-shaped guide platform guides the lifting and lowering in the L-shaped guide groove of the inner furnace shell with the L-shaped guide block.

[0011] Furthermore, a chain head of one end of a hanging chain is fixed in the center of the bottom surface of the upper locking plate, and a plate mounting hole is provided between the surface of the upper locking plate away from the hanging chain and the lower cover surface of the furnace cover, and the upper locking plate and the plate mounting hole of the furnace cover are locked by bolts;

[0012] By adopting the above technical solution, the upper locking plate can be placed on the lower surface of the furnace cover after fixing the lifting chain, and then the bolts are screwed upward from the bottom of the upper locking plate into the plate mounting holes of the upper locking plate and the furnace cover for locking and installation.

[0013] Furthermore, the other end of the chain tail of the hanging chain is fixed on the surface of the top connecting plate, and the top connecting plate is fixed at the center of the upper tube mouth of the T-shaped tube, and a heat insulation sleeve is fixed in the T-shaped through hole above the T-shaped tube, and the hanging chain passes through the heat insulation sleeve;

[0014] By adopting the above technical solution, after the tail of the lifting chain is fixed at the top connecting plate, the top connecting plate can be fixed at the T-shaped tube for connection, and then the T-shaped tube can form a supporting belt structure at the T-shaped perforation of the V-shaped guide platform to carry the V-shaped guide platform up, and the insulation sleeve can accommodate the lifting chain for thermal insulation protection.

[0015] Furthermore, a keyway is formed in the inner depression of the T-shaped through hole outside the T-shaped tube, and a key bar is inserted into the keyway, and the key bar is integrally formed outside the vertical tube wall of the T-shaped tube;

[0016] By adopting the above technical solution, the T-shaped cylinder is positioned and inserted into the keyway by the key bar, so that the connection stability between the T-shaped cylinder and the V-shaped guide platform is better.

[0017] Furthermore, the upper and lower tray surfaces of the middle tray away from the V-shaped guide groove are provided with eight groups of groove bodies of the strip support upper groove A and the strip limit lower groove in an annular distribution, and one end of the eight groups of groove bodies of the strip support upper groove A is close to each other in an inclined manner, and one end of the eight groups of groove bodies of the strip limit lower groove is close to each other in an inclined manner;

[0018] By adopting the above technical scheme, the middle tray is inclined on both sides to approach the upper groove A of the bar support and the lower groove of the bar limit, so that when the crusher tooth plate slides into the upper groove A of the bar support and the upper groove of the bar pressure, or when the crusher tooth plate slides into the lower groove of the bar limit and the upper groove B of the bar support, a better heating space can be left between the crusher tooth plates.

[0019] Furthermore, the guide holes in the upper groove A of the strip support and the lower groove of the strip limit are inserted with a vertical rod body of the limit member, and the length of the vertical rod body of the limit member is greater than the hole depth of the guide hole, and the T-shaped stop plate of the limit member is pressed into the groove wall of the upper groove A of the strip support;

[0020] By adopting the above technical scheme, the vertical rod body of the limit member can be inserted downward from the guide hole of the upper groove A of the bar support to the lower groove of the bar support, and then the T-shaped stop plate of the limit member is pressed on the groove wall of the upper groove A of the bar support to stop the crusher tooth plate, and at the same time, the crusher tooth plate in the lower groove of the bar support can also be stopped by the vertical rod body of the limit member.

[0021] Furthermore, the spacing height between the middle tray and the cover pressure plate is the same, and the spacing height between the middle tray and the bottom tray is the same;

[0022] By adopting the above technical solution, the crusher tooth plates of the same height can be placed between the middle tray and the cover pressure plate, and the crusher tooth plates of the same height can also be placed between the middle tray and the bottom tray.

[0023] Furthermore, a strip plate body of a rib plate is distributed annularly on the lower surface of the bottom tray, and the rib plate is fixed to the surface of the base tray away from the lower plate surface of the bottom tray;

[0024] By adopting the above technical solution, the bottom tray can be connected to the base tray by multiple groups of ribs arranged in a ring distribution, so that there is a better supporting connection structure between the base tray and the tray, ensuring the connection stability and supporting strength of the base tray and the tray.

[0025] Compared with the prior art, the present invention has the following beneficial effects:

[0026] 1. The present invention arranges a hanging plate mechanism in the inner furnace of the pit-type tempering furnace body. The hanging plate mechanism clamps the crusher tooth plate in the grooves that are distributed in an annular manner and tilted close to each other at the bottom tray, the middle tray and the cover pressure plate, and the middle tray is provided with a plug-in limit member, so that the limit member limits the crusher tooth plate at the upper and lower disk surfaces of the middle tray, so that the hanging plate mechanism can carry the crusher tooth plate stably for heat treatment in the inner furnace, and there is a large heating space between the crusher tooth plates that are distributed in an annular manner and tilted close to each other, so that the crusher tooth plate can be well heated, thereby ensuring that the crusher tooth plate can be well heated by the pit-type tempering furnace body.

[0027] 2. The present invention arranges a guide frame mechanism at the inner furnace core and furnace cover of the pit-type tempering furnace body. The guide frame mechanism drives the furnace cover to rise and deflect with the motion trajectory of the lifting seat to pull the lifting chain outward, so that the V-shaped guide platform of the guide frame mechanism is pulled upward out of the inner furnace core. The base plate, bottom tray, middle tray and cover pressure plate of the hanging plate mechanism are provided with V-shaped guide grooves for guidance. Then, the hanging plate mechanism uses the V-shaped guide grooves as a structure leaning against the V-shaped guide platform, so that the hanging plate mechanism can be guided into the furnace with the assistance of the V-shaped guide platform of the guide frame mechanism, thereby ensuring that the hanging plate mechanism equipped with a crusher tooth plate can be quickly hung into the inner furnace core of the pit-type tempering furnace body for heat treatment in the furnace. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 The present invention is a schematic diagram of the overall structure of a crusher tooth plate processing pit type tempering furnace.

[0029] Figure 2 It is a schematic diagram of the disassembly of the hanging plate mechanism and the guide frame mechanism of the crusher tooth plate processing pit type tempering furnace of the present invention.

[0030] Figure 3 This is an exploded view of a guide frame mechanism of a crusher tooth plate processing pit type tempering furnace according to the present invention.

[0031] Figure 4 The present invention is a schematic diagram of the structure of a V-shaped guide table bottom table of a crusher tooth plate processing pit type tempering furnace.

[0032] Figure 5 This is an exploded view of the hanging plate mechanism of a crusher tooth plate processing pit type tempering furnace of the present invention.

[0033] Figure 6 The present invention is a schematic diagram of the structure of the lower plate surface of the middle tray of a crusher tooth plate processing pit type tempering furnace.

[0034] Figure 7 The present invention is a schematic diagram of an L-shaped guide groove structure of a crusher tooth plate processing pit type tempering furnace.

[0035] Figure 8The present invention is a schematic diagram of the upper locking plate structure of a crusher tooth plate processing pit type tempering furnace.

[0036] In the figure: 1. pit-type tempering furnace body; 2. inner furnace; 3. lifting seat; 4. lifting arm; 5. furnace cover; 6. base plate; 7. rib plate; 8. bottom tray; 9. column; 10. T-shaped hanging head; 11. middle tray; 12. cover pressure plate; 13. V-shaped guide groove; 14. upper groove A of strip support; 15. lower groove of strip limit; 16. upper groove of strip pressure; 17. upper groove B of strip support; 18. guide hole; 19. limit piece; 20. T-shaped limit plate; 21. V-shaped guide platform; 22. L-shaped guide block; 23. L-shaped guide groove; 24. T-shaped perforation; 25. insulation sleeve; 26. T-shaped cylinder; 27. key bar; 28. key groove; 29. ​​top connecting plate; 30. lifting chain; 31. upper locking plate; 32. plate mounting hole. DETAILED DESCRIPTION

[0037] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0038] like Figure 1-8 As shown, a pit tempering furnace for processing tooth plates of a crusher comprises a pit tempering furnace body 1, an inner furnace bladder 2, a lifting seat 3, a lifting arm 4 and a furnace cover 5. The inner furnace bladder 2 is installed inside the pit tempering furnace body 1, and the lifting seat 3 is fixed at the outer furnace wall of the pit tempering furnace body 1. The furnace cover 5 is installed on the top of the lifting seat 3 through the lifting arm 4. It also includes a hanging plate mechanism and a guide frame mechanism. The hanging plate mechanism includes a base plate 6, a rib plate 7, a bottom tray 8, a column 9, a T-shaped hanging head 10, a middle tray 11, a cover pressure plate 12, a strip support upper groove A14, a strip limit lower groove 15, a strip pressure upper groove 16, a strip support upper groove B17, a guide hole 18, a limit piece 19 and a T-shaped limit plate 20. The base plate 6 is placed in the inner furnace bladder 2, and the disk surface of the base plate 6 is fixed to the lower disk surface of the bottom tray 8 through the rib plate 7. The upper surface of the bottom tray 8 is fixed with a column 9 in the center, and the column A T-shaped hanging head 10 is fixed on the top of the column 9, and a cover pressure plate 12 and a middle tray 11 are fixed downward in sequence outside the column 9 below the T-shaped hanging head 10, and a strip support upper groove A14 and a strip limit lower groove 15 are respectively opened on the upper and lower disk surfaces of the middle tray 11, and a strip support upper groove 16 is opened in an annular distribution on the lower surface of the cover pressure plate 12 above the strip support upper groove A14, and a strip support upper groove B17 is opened in an annular distribution on the surface of the bottom tray 8 below the strip limit lower groove 15, and a guide hole 18 penetrating through the middle tray 11 is vertically opened between the groove walls of the strip support upper groove A14 and the strip limit lower groove 15, a crusher tooth plate is inserted between the strip support upper groove A14 and the strip pressure upper groove 16, and a limit piece 19 for resisting the crusher tooth plate is inserted in the guide hole 18, and a T-shaped limit plate 20 is fixed to three points on the surface of the middle tray 11 outside the strip support upper groove A14 and the strip limit lower groove 15;

[0039] The guide frame mechanism includes a V-shaped guide groove 13, a V-shaped guide platform 21, an L-shaped guide block 22, an L-shaped guide groove 23, a T-shaped perforation 24, a T-shaped cylinder 26, a top connecting plate 29, a hanging chain 30 and an upper locking plate 31. The base plate 6, the bottom plate 8, the middle plate 11 and the cover plate 12 are provided with a V-shaped guide groove 13 through the plate surface, and a V-shaped guide platform 21 is vertically inserted into the V-shaped guide groove 13. The L-shaped guide block 22 is symmetrically fixed on the outer wall of the arc surface of the V-shaped guide platform 21. The inner furnace An L-shaped guide groove 23 for inserting the L-shaped guide block 22 is vertically opened on the inner wall of the V-shaped guide platform 21, a T-shaped through hole 24 is opened upward through the bottom of the V-shaped guide platform 21, and a T-shaped cylinder 26 is inserted into the bottom of the T-shaped through hole 24, a top connecting plate 29 is fixed at the upper tube mouth of the T-shaped cylinder 26, and a hanging chain 30 is fixed to the upper disk surface of the top connecting plate 29, and the chain body of the hanging chain 30 extending out of the T-shaped through hole 24 is fixed to the lower disk surface of the upper locking plate 31, and the upper locking plate 31 is locked to the lower surface of the furnace cover 5 by bolts.

[0040] like Figure 1-3 As shown, the height of the V-shaped guide platform 21 is less than the depth of the furnace chamber of the inner furnace 2, and the arc surface outer platform wall of the V-shaped guide platform 21 fixes the block of the L-shaped guide block 22 along the arc direction, and two groups of L-shaped guide grooves 23 are symmetrically arranged in the inner furnace 2 on one side of the V-shaped guide platform 21;

[0041] By adopting the above-mentioned preferred technical solution, the V-shaped guide platform 21 can enter the inner furnace 2 for collection, and the V-shaped guide platform 21 can connect the arc-surface outer platform wall of the shield to the inner furnace wall of the inner furnace 2 for guiding and lifting. When the V-shaped guide platform 21 is lifted and lowered by the lifting chain 30, the V-shaped guide platform 21 is guided and lifted in the L-shaped guide groove 23 of the inner furnace 2 by the L-shaped guide block 22.

[0042] like Figure 3 and 8 As shown, one end of the chain head of the hanging chain 30 is fixed in the center of the bottom surface of the upper locking plate 31, and a plate mounting hole 32 is opened between the plate surface of the upper locking plate 31 away from the hanging chain 30 and the lower cover surface of the furnace cover 5, and the upper locking plate 31 and the plate mounting hole 32 of the furnace cover 5 are locked by bolts;

[0043] By adopting the above preferred technical solution, the upper locking plate 31 can be placed on the lower surface of the furnace cover 5 after fixing the lifting chain 30, and then bolts are used to be screwed upward from the bottom of the upper locking plate 31 into the plate mounting holes 32 of the upper locking plate 31 and the furnace cover 5 for locking and installation.

[0044] like Figure 2-3 As shown, the other end of the chain tail of the hanging chain 30 is fixed on the surface of the top connecting plate 29, and the top connecting plate 29 is fixed at the center of the upper tube mouth of the T-shaped tube 26, and the heat insulation sleeve 25 is fixed in the T-shaped through hole 24 above the T-shaped tube 26, and the hanging chain 30 passes through the heat insulation sleeve 25;

[0045] By adopting the above-mentioned preferred technical solution, after the tail of the lifting chain 30 is fixed at the top connecting plate 29, the top connecting plate 29 can be fixed at the T-shaped tube 26 for connection, and then the T-shaped tube 26 can form a supporting belt structure at the T-shaped through hole 24 of the V-shaped guide platform 21, and carry the V-shaped guide platform 21 up, and the insulation sleeve 25 can accommodate the lifting chain 30 for heat insulation protection.

[0046] like Figure 3-4 As shown, a key groove 28 is recessed in the T-shaped through hole 24 outside the T-shaped cylinder 26, and a key bar 27 is inserted into the key groove 28. The key bar 27 is integrally formed outside the vertical cylinder wall of the T-shaped cylinder 26;

[0047] By adopting the above preferred technical solution, the T-shaped cylinder 26 is positioned and inserted into the key groove 28 by the key bar 27, so that the connection stability between the T-shaped cylinder 26 and the V-shaped guide platform 21 is better.

[0048] like Figure 5-6 As shown, the upper and lower tray surfaces of the middle tray 11 away from the V-shaped guide groove 13 are annularly distributed with eight groups of groove bodies of the strip support upper groove A14 and the strip limit lower groove 15, and one end of the eight groups of groove bodies of the strip support upper groove A14 is inclined close to each other, and one end of the eight groups of groove bodies of the strip limit lower groove 15 is inclined close to each other;

[0049] By adopting the above-mentioned preferred technical solution, the middle tray 11 is inclined on both sides to approach the upper groove A14 of the strip support and the lower groove 15 of the strip limit, so that when the crusher tooth plate slides into the upper groove A14 of the strip support and the upper groove 16 of the strip pressure, or when the crusher tooth plate slides into the lower groove 15 of the strip limit and the upper groove B17 of the strip support, a better heating space can be left between the crusher tooth plates.

[0050] like Figure 2 and 5 As shown, the vertical rod body of the limit member 19 is inserted into the guide hole 18 in the upper groove A14 of the strip support and the lower groove 15 of the strip limit, and the length of the vertical rod body of the limit member 19 is greater than the cavity depth of the guide hole 18, and the T-shaped stop plate of the limit member 19 is pressed into the groove wall of the upper groove A14 of the strip support;

[0051] By adopting the above-mentioned preferred technical solution, the vertical rod body of the limit member 19 can be inserted downward from the guide hole 18 of the upper groove A14 of the bar support to the lower groove 15, and then the T-shaped stop plate of the limit member 19 is pressed against the groove wall of the upper groove A14 of the bar support to stop the crusher tooth plate, and at the same time, the crusher tooth plate in the lower groove 15 can also be stopped by the vertical rod body of the limit member 19.

[0052] like Figure 2 and 5 As shown, the spacing height between the middle tray 11 and the cover pressure plate 12 is the same, and the spacing height between the middle tray 11 and the bottom tray 8 is the same;

[0053] By adopting the above preferred technical solution, a crusher tooth plate of the same height can be placed between the middle tray 11 and the cover pressure plate 12, and a crusher tooth plate of the same height can also be placed between the middle tray 11 and the bottom tray 8.

[0054] like Figure 2 and 5 As shown, the lower surface of the bottom tray 8 is provided with a strip plate body of a rib plate 7 in an annular manner, and the rib plate 7 is fixed on the surface of the base tray 6 away from the lower plate surface of the bottom tray 8;

[0055] By adopting the above preferred technical solution, the bottom tray 8 can be connected to the base plate 6 by multiple groups of ribs 7 distributed in a ring shape, so that there is a better supporting connection structure between the base plate 6 and the tray 8, thereby ensuring the connection stability and supporting strength of the base plate 6 and the tray 8.

[0056] It should be noted that the present invention is a pit tempering furnace for processing tooth plates of a crusher. The present invention provides a guide frame mechanism at the inner furnace 2 and the furnace cover 5 of the pit tempering furnace body 1, and a hanging plate mechanism is provided in the inner furnace 2. The L-shaped guide groove 23 of the guide frame mechanism can be vertically opened at the inner wall of the inner furnace 2, and then the V-shaped guide platform 21 is vertically embedded in the L-shaped guide groove 23 of the inner furnace 2 with the L-shaped guide block 22. At this time, the V-shaped guide platform 21 slides into the furnace cavity along the inner furnace 2, and a T-shaped cylinder 26 is inserted upward into the T-shaped through hole 24 of the V-shaped guide platform 21, and the T-shaped cylinder 26 is connected to the top connecting plate 29 through the hanging chain 30, which extends out of the heat insulation sleeve 25 and the V-shaped guide platform 21, and the upper locking plate 31 at the other end of the hanging chain 30 is locked on the lower surface of the furnace cover 5 by bolts;

[0057] Then the hanging plate mechanism can be placed normally on the ground near the pit tempering furnace body 1, and then the bottom tray 8 of the hanging plate mechanism is pressed on the ground with the base plate 6 under the rib plate 7 to obtain support, and the worker can slide the crusher tooth plate along the strip support upper groove A14 on the upper surface of the middle tray 11 and the strip pressure lower groove 16 under the cover pressure plate 12 into the space between the two groups of trough bodies, and at the same time, the crusher tooth plate can also be slid into the strip support upper groove B17 on the surface of the bottom tray 8 and the strip limit lower groove 15 under the middle tray 11, and then the guide hole 18 of the middle tray 11 can be inserted with the limit piece 19, the vertical rod body of the limit member 19 can be inserted downward from the guide hole 18 of the upper groove A14 of the strip support to the lower groove 15, and then the T-shaped plate of the limit member 19 is pressed against the groove wall of the upper groove A14 of the strip support to stop the crusher tooth plate, and at the same time, the crusher tooth plate in the lower groove 15 can also be stopped by the vertical rod body of the limit member 19, and T-shaped limit plates 20 are fixed at three points on the surface of the middle tray 11 outside the upper groove A14 of the strip support and the lower groove 15 of the strip support, and these three-point distributed and fixed T-shaped limit plates 20 can position the crusher tooth plates on both sides of the middle tray 11;

[0058] Then the worker uses the clamping claw below the lifting device of the lifting equipment, and the clamping claw can be clamped at the T-shaped lifting head 10 on the top of the column 9 under the operation of the worker, so as to lift the hanging plate mechanism loaded with the crusher tooth plate to the inner furnace 2. When the hanging plate mechanism enters the furnace, the lifting seat 3 of the pit-type tempering furnace body 1 drives the lifting arm 4 to lift the furnace cover 5, so that the furnace cover 5 moves upward away from the furnace mouth of the pit-type tempering furnace body 1, and then the lifting arm 4 rotates to leave the top of the inner furnace 2. When the lifting arm 4 rotates outward, the guide frame mechanism is driven. At this time, the upper locking plate 31 is pulled by the upward deflection of the furnace cover 5, and the upper locking plate 31 is lifted up with the lifting chain 30, the top connecting plate 29 and the T-shaped cylinder 26 and the V-shaped guide platform 21 As the lifting chain 30 continues to pull and tug, the V-shaped guide platform 21 is guided and raised in the L-shaped guide groove 23 of the inner furnace 2 by the L-shaped guide block 22, so that the V-shaped guide platform 21 is exposed from the inner furnace 2 and the furnace mouth of the pit-type tempering furnace body 1. At this time, the worker can operate the base plate 6, bottom tray 8, middle tray 11 and cover pressure plate 12 of the hanging plate mechanism to guide the V-shaped guide groove 13 toward the V-shaped guide platform 21 for entering the furnace. Under the guiding auxiliary action of the V-shaped guide platform 21, the hanging plate mechanism loaded with the crusher tooth plate can quickly enter the inner furnace 2, and then the clamping claw releases the T-shaped hanging head 10 to move upward and leave the pit-type tempering furnace body 1. At this time, the lifting arm 4 rotates with the furnace cover 5 to The inner furnace 2 is lowered, and the lifting chain 30 loses its traction as the furnace cover 5 rotates and descends, so that the V-shaped guide platform 21 falls back into the inner furnace 2, and under the weight of the V-shaped guide platform 21, the lifting chain 30 is brought back to the heat insulation sleeve 25 of the V-shaped guide platform 21 for storage. At this time, the furnace cover 5 and the pit-type tempering furnace body 1 are completely closed, and the heat treatment of the crusher tooth plate can be carried out. When the crusher tooth plate is clamped in the groove body that is annularly distributed and inclined to each other at the bottom tray 8, the middle tray 11 and the cover pressure plate 12 for heat treatment, there is a good heating space between the crusher tooth plates, which ensures that the crusher tooth plates can be better heated by the pit-type tempering furnace body 1 Heat treatment, after the crusher tooth plate is heat treated, the furnace cover 5 is pulled away from the furnace mouth of the pit tempering furnace body 1 again. At this time, the worker uses the clamping claw below the lifting device of the lifting equipment. The clamping claw can be clamped at the T-shaped lifting head 10 on the top of the column 9 under the operation of the worker, so as to lift the hanging plate mechanism loaded with the crusher tooth plate upward from the inner furnace 2. After the temperature of the crusher tooth plate drops, the limit piece 19 can be pulled out, and the crusher tooth plate between the bar support upper groove A14 and the bar pressure lower groove 16 can be slid out. At the same time, the crusher tooth plate between the bar limit lower groove 15 and the bar support upper groove B17 can also be slid out, so that the crusher tooth plate after heat treatment is sent to the subsequent processing equipment for processing;

[0059] The lifting chain 30 of the present invention needs to select a suitable chain length according to the lifting height requirement of the V-shaped guide platform 21. If the length selected by the lifting chain 30 is too long, the height to which the V-shaped guide platform 21 can be pulled out is limited. If the length selected by the lifting chain 30 is shorter, the height to which the V-shaped guide platform 21 can be pulled out will be increased. When selecting the size of the lifting chain 30, it is necessary to ensure that the lifting chain 30 can smoothly fall and slide into the insulation sleeve 25 of the V-shaped guide platform 21 for storage. In addition, the strength of the lifting chain 30 needs to be regularly tested during use. If it is found that the strength of the lifting chain 30 is reduced after long-term heat treatment, the upper locking plate 31 needs to be removed from the furnace cover 5. Then cut the lifting chain 30 at the locking disk 31, and pull the lifting chain 30 out from under the insulation sleeve 25 and the T-shaped through-hole 24, then take a new T-shaped tube 26 fixed with a top connecting disk 29, weld one end of the new lifting chain 30 to the top connecting disk 29, and then pass the other end of the lifting chain 30 upward through the T-shaped through-hole 24 and the insulation sleeve 25 of the V-shaped guide platform 21, and weld the other end of the lifting chain 30 to the new locking disk 31, and then the locking disk 31 can be conveniently locked under the furnace cover 5 by bolts, and the components of the hanging plate mechanism can also be replaced as needed after the strength is reduced due to long-term use.

[0060] It should be noted that the present invention is a crusher tooth plate processing pit tempering furnace. The components in the present invention are all components known to those skilled in the art, and their structures and principles can be known to those skilled in the art through technical manuals or conventional experimental methods.

[0061] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A pit tempering furnace for processing tooth plates of a crusher, comprising a pit tempering furnace body (1), an inner furnace liner (2), a lifting seat (3), a lifting arm (4) and a furnace cover (5), wherein the inner furnace liner (2) is installed inside the pit tempering furnace body (1), and the lifting seat (3) is fixed on the outer furnace wall of the pit tempering furnace body (1), and the furnace cover (5) is installed on the top of the lifting seat (3) through the lifting arm (4), characterized in that: The invention also comprises a hanging plate mechanism and a guide frame mechanism, wherein the hanging plate mechanism comprises a base plate (6), a rib plate (7), a bottom tray (8), a column (9), a T-shaped hanging head (10), a middle tray (11), a cover pressure plate (12), a strip support upper groove A (14), a strip limit lower groove (15), a strip pressure upper groove (16), a strip support upper groove B (17), a guide hole (18), a limit member (19) and a T-shaped limit plate (20). The base plate (6) is placed in the inner furnace (2), and the plate body surface of the base plate (6) is fixed to the lower plate surface of the bottom tray (8) through the rib plate (7). The column (9) is fixed in the center of the upper surface of the bottom tray (8), and the top of the column (9) is fixed with a T-shaped hanging head (10). The column (9) below the T-shaped hanging head (10) is fixed with a cover pressure plate (12) and a middle tray (11) in sequence downwardly outwardly. ), and the upper and lower disk surfaces of the middle tray (11) are respectively provided with a strip support upper groove A (14) and a strip limit lower groove (15); the lower surface of the cover pressure plate (12) above the strip support upper groove A (14) is provided with a strip pressure upper groove (16) in an annular distribution; the surface of the bottom tray (8) below the strip limit lower groove (15) is provided with a strip support upper groove B (17) in an annular distribution; a guide hole (18) penetrating the middle tray (11) is vertically provided between the groove walls of the strip support upper groove A (14) and the strip limit lower groove (15); a crusher tooth plate is inserted between the strip support upper groove A (14) and the strip pressure upper groove (16); a stopper (19) for stopping the crusher tooth plate is inserted into the guide hole (18); and a T-shaped stopper (20) is fixed at three points on the surface of the middle tray (11) outside the strip support upper groove A (14) and the strip limit lower groove (15); The guide frame mechanism comprises a V-shaped guide groove (13), a V-shaped guide platform (21), an L-shaped guide block (22), an L-shaped guide groove (23), a T-shaped perforation (24), a T-shaped cylinder (26), a top connecting plate (29), a hanging chain (30) and an upper locking plate (31); the base plate (6), the bottom plate (8), the middle plate (11) and the cover plate (12) are provided with a V-shaped guide groove (13) through the plate surface, and a V-shaped guide platform (21) is vertically inserted into the V-shaped guide groove (13); an L-shaped guide block (22) is symmetrically fixed on the arc surface outer wall of the V-shaped guide platform (21); An L-shaped guide groove (23) for inserting an L-shaped guide block (22) is vertically provided on the inner wall of the furnace (2); a T-shaped through hole (24) is provided on the bottom of the V-shaped guide platform (21) and penetrates upward, and a T-shaped cylinder (26) is inserted into the bottom of the T-shaped through hole (24); a top connecting plate (29) is fixed at the upper tube mouth of the T-shaped cylinder (26); a hanging chain (30) is fixed to the upper disk surface of the top connecting plate (29); a chain body of the hanging chain (30) extending out of the T-shaped through hole (24) is fixed to the lower disk surface of the upper locking plate (31), and the upper locking plate (31) is locked to the lower surface of the furnace cover (5) by bolts.

2. A crusher tooth plate processing pit tempering furnace according to claim 1, characterized in that: The height of the V-shaped guide platform (21) is less than the depth of the furnace chamber of the inner furnace (2), and the curved outer platform wall of the V-shaped guide platform (21) fixes the block of the L-shaped guide block (22) along the arc direction, and two groups of L-shaped guide grooves (23) are symmetrically arranged in the inner furnace (2) on one side of the V-shaped guide platform (21).

3. A crusher tooth plate processing pit tempering furnace according to claim 1, characterized in that: A chain head of one end of a hanging chain (30) is fixed in the center of the bottom surface of the upper locking plate (31), and a plate mounting hole (32) is provided between the surface of the upper locking plate (31) away from the hanging chain (30) and the lower cover surface of the furnace cover (5), and the upper locking plate (31) and the plate mounting hole (32) of the furnace cover (5) are locked by bolts.

4. A crusher tooth plate processing pit tempering furnace according to claim 3, characterized in that: The other end of the chain tail of the hanging chain (30) is fixed on the surface of the top connecting plate (29), and the top connecting plate (29) is fixed at the center of the upper tube mouth of the T-shaped tube (26). A heat insulation sleeve (25) is fixed in the T-shaped through hole (24) above the T-shaped tube (26), and the hanging chain (30) passes through the heat insulation sleeve (25).

5. A crusher tooth plate processing pit tempering furnace according to claim 4, characterized in that: A keyway (28) is recessed in the T-shaped through hole (24) outside the T-shaped cylinder (26), and a key bar (27) is inserted into the keyway (28). The key bar (27) is integrally formed outside the vertical cylinder wall of the T-shaped cylinder (26).

6. A crusher tooth plate processing pit tempering furnace according to claim 1, characterized in that: The upper and lower tray surfaces of the middle tray (11) away from the V-shaped guide groove (13) are provided with eight groups of groove bodies, including upper grooves A (14) for strip supports and lower grooves (15), distributed in an annular manner. One ends of the eight groups of groove bodies of the upper grooves A (14) for strip supports are close to each other in an inclined manner, and one ends of the eight groups of groove bodies of the lower grooves (15) for strip limits are close to each other in an inclined manner.

7. A crusher tooth plate processing pit tempering furnace according to claim 6, characterized in that: A vertical rod body of a limit member (19) is inserted into the guide hole (18) in the upper groove A (14) of the strip support and the lower groove (15) of the strip limit, and the length of the vertical rod body of the limit member (19) is greater than the hole depth of the guide hole (18), and the T-shaped stop plate of the limit member (19) is pressed into the groove wall of the upper groove A (14) of the strip support.

8. A crusher tooth plate processing pit tempering furnace according to claim 6, characterized in that: The spacing height between the middle tray (11) and the cover pressure plate (12) is the same, and the spacing height between the middle tray (11) and the bottom tray (8) is the same.

9. A crusher tooth plate processing pit tempering furnace according to claim 8, characterized in that: The lower surface of the bottom tray (8) is provided with a strip-shaped plate body of a rib plate (7) distributed in an annular manner, and the rib plate (7) is fixed on the surface of the base tray (6) away from the lower plate surface of the bottom tray (8).

Images