Cryogenic treatment device for ultra-large blade after quenching processing

Abstract

The utility model relates to the technical field of blade subzero treatment, in particular to a subzero treatment device for a quenched oversized blade, which comprises a fixing plate and a box cover, a box body is mounted on one side of the top of the fixing plate, and a support plate is mounted on the other side of the top of the fixing plate. A second bearing is embedded in the side, away from the supporting plate, of the box body, a fixing rod is fixedly installed on an inner ring of the second bearing, two stirring frames are symmetrically welded to the outer side of the section, extending into the box body, of the fixing rod, a first bearing is embedded in the supporting plate, a lead screw is fixedly installed on an inner ring of the first bearing, and a threaded sleeve is installed at the top of the box cover. And a connecting plate is welded to the side, opposite to the box body, of the box cover, a screw hole is formed in the connecting plate, and a screw rod is in threaded connection with the inner wall of the screw hole. The cooling device has the advantages that when the liquid nitrogen is used for cooling the oversized blade, the temperature of the liquid nitrogen is kept uniform, and the cooling quality of the oversized blade is prevented from being influenced.

Description

Technical Field

[0001] The utility model relates to the technical field of deep cryogenic treatment of blades, in particular to a deep cryogenic treatment device for super-large blades after quenching. Background Art

[0002] In the solid wood planing, pulp and other industries, super-large blades are needed for thin-slice cutting of wood. Such super-large tools are generally more than 2.5 meters long. The cryogenic treatment device after the super-large blade is quenched usually uses liquid nitrogen or liquid argon for cryogenic treatment. This device includes a sealed container for holding the blade and can be kept at an extremely low temperature. Generally, the blade is placed in a cryogenic treatment device and then rapidly cooled by injecting liquid nitrogen or liquid argon. This process helps to improve the hardness and wear resistance of the blade, thereby extending its service life.

[0003] When the blade is placed in liquid nitrogen, the liquid nitrogen with lower density may rise, while the liquid nitrogen with higher density may sink, resulting in convection inside the liquid nitrogen, which will form a temperature gradient inside the liquid nitrogen, resulting in uneven cooling. This temperature unevenness may affect the cooling effect of the blade, especially the overall performance and structure of the blade, which may damage the blade or affect its performance. Utility Model Content

[0004] The utility model aims to provide a cryogenic treatment device for an oversized blade after quenching, which has the advantages of maintaining a uniform temperature of the liquid nitrogen when using liquid nitrogen to cool the oversized blade, avoiding affecting the cooling quality of the oversized blade, and solving the problem of uneven temperature of the liquid nitrogen inside the cryogenic treatment device when cooling the oversized blade.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a deep cold treatment device for an oversized blade after quenching processing, comprising a fixing plate and a box cover, a box body is installed on one side of the top of the fixing plate, a support plate is installed on the other side of the top of the fixing plate, a bearing 2 is embedded and installed on the side of the box body away from the support plate, a fixing rod is fixedly installed on the inner ring of the bearing 2, the fixing rod extends into the interior of the box body and two stirring frames are symmetrically welded on the outside, a bearing 1 is embedded and installed on the support plate, a screw rod is fixedly installed on the inner ring of the bearing 1, a screw sleeve is installed on the top of the box cover, the screw sleeve is meshed with the screw rod, a connecting plate is welded on the side of the box cover opposite to the box body, a screw hole is opened on the connecting plate, and a screw rod is threadedly connected to the inner wall of the screw hole.

[0006] When using a deep cold treatment device after quenching of an oversized blade in the technical solution, the fixing plate is fixed to the ground through the fixing hole of the fixing plate using bolts and other tools, one end of the oversized blade is placed on the carrying plate, the fixing plate is used to rotate the screw rod, the screw rod rotates and moves in the screw hole of the connecting plate, the screw drives the pressing plate to descend and presses and fixes the oversized blade on the carrying plate, the hand wheel is used to rotate the lead screw, the screw sleeve moves on the rotating lead screw, the screw sleeve drives the box cover to move toward the box body, so that the oversized blade enters the inside of the box body from the side, the box cover and the box body are combined, and liquid nitrogen enters the inside of the box body from the feed pipe. The liquid nitrogen absorbs the heat of the oversized blade and cools down the oversized blade. The motor drives the fixed rod to rotate through the transmission structure, and the fixed rod drives the two stirring racks to rotate. The two stirring racks mix the liquid nitrogen inside the box body to make the temperature of the liquid nitrogen uniform.

[0007] Preferably, a feed pipe is embedded in the top of the box, and a discharge pipe is embedded in the bottom of the box. Liquid nitrogen enters the box from the feed pipe, and liquid nitrogen in the box is discharged from the discharge pipe.

[0008] Preferably, a hand wheel is installed at one end of the screw rod away from the box body. The screw rod can be rotated by using the hand wheel.

[0009] Preferably, a baffle plate 2 is welded to the end of the screw rod away from the hand wheel. The baffle plate 2 limits the screw sleeve to prevent the screw sleeve from sliding off the screw rod.

[0010] Preferably, a positioning rod is welded on the side of the support plate above the screw rod, a positioning sleeve is welded on the top of the screw sleeve, the positioning rod passes through the positioning sleeve, and a baffle 1 is welded on one end of the positioning rod passing through the positioning sleeve. When the screw sleeve moves on the screw rod, the positioning sleeve moves on the positioning rod, and the baffle 1 prevents the positioning sleeve from sliding off the positioning rod.

[0011] Preferably, a motor is installed on the side of the box body away from the box cover, and the motor transmission structure is fixedly connected to the fixing rod. The motor drives the fixing rod to rotate through the transmission structure.

[0012] Preferably, a fixing plate is installed on the top of the screw rod, a pressing plate is welded on the bottom of the screw rod, and a bearing plate is welded on the side of the support plate below the pressing plate. One end of the super large blade is placed on the bearing plate, and the fixing plate is used to rotate the screw rod, and the screw rod rotates and moves in the screw hole of the connecting plate, and the screw rod drives the pressing plate to descend and press the super large blade to fix it on the bearing plate.

[0013] Preferably, a sliding rod is installed in the middle of the bottom of the box cover, a sliding groove is provided in the middle of the top of the fixing plate, the sliding rod and the sliding groove are slidably connected, and the fixing plate is provided with fixing holes in a rectangular array. Through the fixing holes of the fixing plate, the fixing plate is fixed to the ground using tools such as bolts, and the box cover is slidably connected to the fixing plate through the sliding rod and the sliding groove.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] The utility model arranges a fixed rod and a stirring rack, places the super-large blade inside a box, adds liquid nitrogen into the box, and the liquid nitrogen cools the super-large blade. During the cooling process, a motor drives the fixed rod to rotate through a transmission structure, and the fixed rod drives two stirring racks to rotate. The two stirring racks mix the liquid nitrogen inside the box to make the temperature of the liquid nitrogen uniform, thereby achieving the effect of maintaining the temperature of the liquid nitrogen uniform when using the liquid nitrogen to cool the super-large blade, and avoiding affecting the cooling quality of the super-large blade. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the three-dimensional structure of the utility model from a first angle;

[0017] Figure 2 This is a schematic diagram of the three-dimensional structure of the utility model from a second angle;

[0018] Figure 3 This is a schematic diagram of the positioning sleeve and the screw sleeve structure of the utility model;

[0019] Figure 4 This is a schematic diagram of the cross-sectional structure of the box body of the utility model;

[0020] Figure 5 It is a schematic diagram of the structure of the connecting plate and the bearing plate of the utility model.

[0021] In the figure: 1. fixed plate; 2. support plate; 3. hand wheel; 4. positioning rod; 5. bearing 1; 6. screw rod; 7. positioning sleeve; 8. baffle 1; 9. screw sleeve; 10. baffle 2; 11. feed pipe; 12. box cover; 13. box body; 14. bearing 2; 15. motor; 16. fixing hole; 17. slide groove; 18. slide rod; 19. fixed plate; 20. pressure plate; 21. connecting plate; 22. load-bearing plate; 23. stirring frame; 24. screw hole; 25. screw rod; 26. fixing rod; 27. discharge pipe. DETAILED DESCRIPTION

[0022] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below with reference to the accompanying drawings.

[0023] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific implementation methods disclosed below.

[0024] Secondly, the present invention is described in detail with reference to the schematic diagram. When describing the implementation of the present invention, for the sake of convenience, the cross-sectional diagram showing the device structure will not be partially enlarged according to the general scale, and the schematic diagram is only an example, which should not limit the scope of protection of the present invention. In addition, in actual production, the three-dimensional dimensions of length, width and depth should be included.

[0025] In order to make the purpose, technical solution and advantages of the present invention more clear, the implementation mode of the present invention will be further described in detail below with reference to the accompanying drawings.

[0026] Embodiment 1

[0027] like Figure 1-Figure 5 As shown, the utility model proposes a deep cold treatment device for super large blades after quenching processing, including a fixed plate 1 and a box cover 12, a box body 13 is installed on one side of the top of the fixed plate 1, a support plate 2 is installed on the other side of the top of the fixed plate 1, a bearing 14 is embedded and installed on the side of the box body 13 away from the support plate 2, a fixing rod 26 is fixedly installed on the inner ring of the bearing 14, the fixing rod 26 extends into the inner part of the box body 13, and two stirring frames 23 are symmetrically welded on the outer side, a motor 15 is installed on the side of the box body 13 away from the box cover 12, the transmission structure of the motor 15 is fixedly connected to the fixing rod 26, a bearing 15 is embedded and installed on the support plate 2, a screw 6 is fixedly installed on the inner ring of the bearing 15, a screw sleeve 9 is installed on the top of the box cover 12, and a screw sleeve 9 is installed on the top of the box cover 12. The sleeve 9 is meshed and connected with the screw rod 6, and a handwheel 3 is installed at the end of the screw rod 6 away from the box body 13. A connecting plate 21 is welded to the side of the box cover 12 opposite to the box body 13, and a screw hole 24 is opened in the connecting plate 21. A screw rod 25 is threadedly connected to the inner wall of the screw hole 24, and a fixing plate 19 is installed on the top of the screw rod 25. A pressing plate 20 is welded to the bottom of the screw 25, and a bearing plate 22 is welded to the side of the support plate 2 below the pressing plate 20. A feed pipe 11 is embedded and installed on the top of the box body 13, and a discharge pipe 27 is embedded and installed on the bottom of the box body 13. A sliding rod 18 is installed in the middle of the bottom of the box cover 12, and a slide groove 17 is opened in the middle of the top of the fixed plate 1. The sliding rod 18 and the slide groove 17 are slidably connected, and the fixed plate 1 is opened with fixing holes 16 in a rectangular array.

[0028] In this embodiment, the fixing plate 1 is fixed to the ground through the fixing hole 16 of the fixing plate 1 using bolts and other tools, one end of the super-large blade is placed on the carrying plate 22, the fixing plate 19 is used to rotate the screw 25, the screw 25 rotates and moves in the screw hole 24 of the connecting plate 21, the screw 25 drives the pressing plate 20 to descend and presses and fixes the super-large blade on the carrying plate 22, the hand wheel 3 is used to rotate the screw rod 6, the screw sleeve 9 moves on the rotating screw rod 6, the screw sleeve 9 drives the box cover 12 to move in the direction of the box body 13, so that the super-large blade enters the inside of the box body 13 from the side, the box cover 12 and the box body 13 are combined, and liquid nitrogen enters the inside of the box body 13 from the feed pipe 11. The liquid nitrogen absorbs the heat of the super-large blade and cools the super-large blade. The motor 15 drives the fixed rod 26 to rotate through the transmission structure, and the fixed rod 26 drives the two stirring racks 23 to rotate. The two stirring racks 23 mix the liquid nitrogen inside the box body 13 to make the temperature of the liquid nitrogen uniform.

[0029] Embodiment 2

[0030] like Figure 1-Figure 5 As shown, the utility model proposes a deep cold treatment device for an oversized blade after quenching processing. Compared with the first embodiment, the present embodiment also includes: a positioning rod 4, a baffle 1 8 and a baffle 2 10. The end of the screw rod 6 facing away from the hand wheel 3 is welded with a baffle 2 10, the side of the support plate 2 above the screw rod 6 is welded with a positioning rod 4, the top of the screw sleeve 9 is welded with a positioning sleeve 7, the positioning rod 4 passes through the positioning sleeve 7, and the end of the positioning rod 4 passing through the positioning sleeve 7 is welded with a baffle 1 8.

[0031] In this embodiment, when the screw sleeve 9 moves on the screw rod 6, the positioning sleeve 7 moves on the positioning rod 4, the baffle 1 8 prevents the positioning sleeve 7 from sliding off the positioning rod 4, and the baffle 2 10 limits the screw sleeve 9 to prevent the screw sleeve 9 from sliding off the screw rod 6.

[0032] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A cryogenic treatment device for super-large blades after quenching, comprising a fixing plate (1) and a box cover (12), characterized in that: A box body (13) is installed on one side of the top of the fixing plate (1), and a support plate (2) is installed on the other side of the top of the fixing plate (1). A bearing 2 (14) is embedded and installed on the side of the box body (13) away from the support plate (2). A fixing rod (26) is fixedly installed on the inner ring of the bearing 2 (14). The fixing rod (26) extends into the inside of the box body (13) and two stirring racks (23) are symmetrically welded on the outer side. A bearing 1 (5) is embedded and installed on the support plate (2). A screw rod (6) is fixedly installed on the inner ring of the bearing 1 (5). A screw sleeve (9) is installed on the top of the box cover (12), and the screw sleeve (9) is meshedly connected with the screw rod (6). A connecting plate (21) is welded on the side of the box cover (12) opposite to the box body (13). The connecting plate (21) is provided with a screw hole (24), and the inner wall of the screw hole (24) is threadedly connected with a screw rod (25).

2. The deep cryogenic treatment device for super large blades after quenching according to claim 1, characterized in that: A feed pipe (11) is embedded in the top of the box body (13), and a discharge pipe (27) is embedded in the bottom of the box body (13).

3. The deep cryogenic treatment device for super large blades after quenching according to claim 1, characterized in that: A hand wheel (3) is installed at one end of the screw rod (6) away from the box body (13).

4. The deep cryogenic treatment device for super large blades after quenching according to claim 3, characterized in that: A second baffle (10) is welded to the end of the screw rod (6) that is away from the hand wheel (3).

5. The deep cryogenic treatment device for super large blades after quenching according to claim 1, characterized in that: A positioning rod (4) is welded to the side of the support plate (2) above the screw rod (6), a positioning sleeve (7) is welded to the top of the screw sleeve (9), the positioning rod (4) passes through the positioning sleeve (7), and a baffle (8) is welded to one end of the positioning rod (4) passing through the positioning sleeve (7).

6. The deep cryogenic treatment device for super large blades after quenching according to claim 1, characterized in that: A motor (15) is installed on the side of the box body (13) facing away from the box cover (12), and the transmission structure of the motor (15) is fixedly connected to the fixing rod (26).

7. The deep cryogenic treatment device for super large blades after quenching according to claim 1, characterized in that: A fixing plate (19) is installed on the top of the screw rod (25), a pressing plate (20) is welded to the bottom of the screw rod (25), and a bearing plate (22) is welded to the side of the support plate (2) below the pressing plate (20).

8. The deep cryogenic treatment device for super large blades after quenching according to claim 1, characterized in that: A sliding rod (18) is installed in the middle of the bottom of the box cover (12), a sliding groove (17) is opened in the middle of the top of the fixing plate (1), the sliding rod (18) and the sliding groove (17) are slidably connected, and the fixing plate (1) is opened with fixing holes (16) in a rectangular array.

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