Quenching cooling device for mine wear-resistant parts

Abstract

The utility model relates to quenching cooling field especially pertains to mine wear -resistant spare part quenching cooling device. The problem to be solved is that the wear -resistant spare part is not cooled fully when quenching, and there is a cooling blind area, and the oxide is inconvenient to collect when cooling. Technical scheme: mine wear -resistant spare part quenching cooling device, including gas quenching furnace and drive unit etc. The drive unit is installed at the bottom of the gas quenching furnace. The application realizes the motion of reciprocating swing up and down on the left and right sides through the discharge rack, the rock drill rod can start to roll on the groove of the discharge rack, and the cooling blind area is eliminated, and the purpose of full cooling is achieved. Through the adjustable airflow circulation channel, the oxide is quickly cleaned and collected, the oxide is prevented from entering the air outlet pipeline, and blockage or influence on the normal cooling work of the rock drill rod is avoided.

Description

Technical Field

[0001] This utility model relates to the field of quenching and cooling, and in particular to a quenching and cooling device for wear-resistant parts in mining. Background Technology

[0002] Existing technology uses an air quenching furnace to cool the drill bit of a rock drill. This involves placing the drill bit into the furnace and then circulating cooling gas through both sides. However, this process results in uneven cooling of the drill bit. Furthermore, because the drill bit is stationary, there are significant cooling blind spots, leading to poor cooling performance.

[0003] Meanwhile, during the cooling process, certain oxides are generated. These oxides can also affect the cooling of the rock drill rod. Furthermore, the oxides may cause blockages in the exhaust port, making it difficult to clean. Summary of the Invention

[0004] In order to overcome the shortcomings of insufficient cooling, the existence of cooling blind spots, and the inconvenience of collecting oxides during the quenching and cooling of wear-resistant parts, this invention provides a quenching and cooling device for wear-resistant parts in mining.

[0005] The technical solution is as follows: a quenching and cooling device for wear-resistant parts in mining, including an air quenching furnace; two support platforms are set inside the air quenching furnace; a drive unit is also included; the drive unit is installed at the bottom of the air quenching furnace; a second chassis is connected to the drive unit; an outer frame is placed on the two support platforms; several rotating shafts are equidistantly connected from top to bottom on the inner side of the outer frame; each rotating shaft is rotatably connected to a feeding rack for placing rock drill rods; a linkage frame is installed on the left and right sides of all feeding racks.

[0006] As a further preferred embodiment, the drive unit includes a first drive component, a first chassis, and a second drive component; the first drive component is fixedly connected to the bottom of the gas quenching furnace; the first chassis is installed at the output end of the drive component; and four second drive components in a ring array are fixedly connected to the upper surface of the first chassis.

[0007] As a further preferred option, the feeding rack has several grooves, and each groove is provided with a limit block.

[0008] As a further preferred option, the groove is set to be arc-shaped.

[0009] As a further preferred option, a wave-shaped ring is provided on the second chassis.

[0010] As a further preferred option, two feeding auxiliary rings are provided on both the left and right sides of the outer frame.

[0011] As a further preferred option, the front side of the outer frame is provided with a rotatable rotating plate.

[0012] As a further preferred embodiment, a collection assembly is also included, comprising a collection bin, a temporary collection tray, auxiliary rods, a baffle plate, a cover plate, a wire mesh, and a sealing plate. Several collection bins are arranged from top to bottom on the outer frame, with each bin located below a corresponding discharge rack. A temporary collection tray is located on the left side of each collection bin, and the base plate of each temporary collection tray consists of multiple rotating base plates equipped with torsion springs, facilitating the collection of oxides in conjunction with the collection bin. A connecting rod is installed on the side of each rotating base plate away from the torsion spring. A baffle plate for controlling the airflow path is fixed to the left end of each discharge rack, and each baffle plate contacts the right side of the connecting rod of the adjacent temporary collection tray. Several auxiliary rods are fixed to each collection bin. A cover plate is installed on all auxiliary rods located within the same collection bin. Several through slots are opened on each discharge rack, and all through slots are located between two adjacent discharge racks. A sealing plate is fixed to each auxiliary rod. A wire mesh for blocking oxides is installed between the left side of each adjacent collection bin and the cover plate.

[0013] Compared with the prior art, the present invention has the following advantages: the present invention realizes the reciprocating up-and-down swinging motion on both sides of the feeding frame, so that the rock drill rod can start to roll on the groove of the feeding frame, thereby eliminating the cooling blind zone and achieving the purpose of sufficient cooling; The adjustable airflow channel enables rapid cleaning and collection of oxides, preventing them from entering the exhaust duct, causing blockages, or affecting the normal cooling of the rock drill rod. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the quenching and cooling device for wear-resistant parts in mining according to the present invention; Figure 2 This is a cross-sectional view of the quenching and cooling device for wear-resistant parts in mining according to the present invention; Figure 3 This is a schematic diagram of the three-dimensional structure of the combined support platform and outer frame of the present invention; Figure 4 This is a schematic diagram of the three-dimensional structure of the outer frame and rotating plate combination of the present invention; Figure 5 This is a three-dimensional structural diagram of the first combination of the swing component and the collecting component of the present invention; Figure 6 This is a three-dimensional structural diagram of the second combination of the swing component and the collecting component of the present invention; Figure 7 This is a schematic diagram of the combined structure of the linkage frame and the feeding frame of the present invention; Figure 8This is a schematic diagram of the three-dimensional structure of the first chassis and linkage frame combination of the present invention; Figure 9 This is a front view of the swing component of the present invention; Figure 10 This is a schematic diagram of the three-dimensional structure of the collection chamber and the metal wire mesh combination of the present invention; Figure 11 This is a schematic diagram of the three-dimensional structure of the temporary collection tray and wind deflector combination of the present invention; Figure 12 This is a three-dimensional structural diagram of the temporary collection tray of the present invention.

[0015] The components are: 1-Gas quenching furnace, 2-Rock drill rod, 1001-Air inlet pipe, 1002-Air outlet pipe, 1003-Bearing platform, 101-First driving component, 102-First chassis, 103-Second chassis, 10301-Wave-shaped ring, 104-Linkage frame, 105-Discharge rack, 10501-Groove, 10502-Limiting block, 106-Outer frame, 10601-Feeding auxiliary ring, 10602-Rotating plate, 107-Rotating shaft, 108-Second driving component, 201-Collection bin, 202-Temporary collection tray, 20201-Rotating base plate, 20202-Connecting rod, 203-Auxiliary rod, 204-Wind baffle, 205-Cover plate, 206-Metal wire mesh, 207-Sealing plate. Detailed Implementation

[0016] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0017] Example 1 Quenching and cooling devices for wear-resistant parts in mining, such as Figures 1-8 As shown, it includes an air quenching furnace 1; two support platforms 1003 are provided inside the air quenching furnace 1; It also includes a drive unit, a second chassis 103, a linkage frame 104, a feeding rack 105, an outer frame 106, and a rotating shaft 107; the drive unit is installed at the bottom of the gas quenching furnace 1; the second chassis 103 is connected to the drive unit, and a wave-shaped ring 10301 is provided on the second chassis 103; the outer frame 106 is placed on two support platforms 1003, and two feeding auxiliary rings 10601 are provided on the left and right sides of the outer frame 106 to cooperate with the feeding car for feeding, and a rotatable rotating plate 10602 is provided on the rear side of the outer frame 106 to facilitate feeding; several rotating shafts 107 are equidistantly connected from top to bottom on the inner side of the outer frame 106. 07; Each rotating shaft 107 is rotatably connected to a feeding rack 105. Each feeding rack 105 has several grooves 10501, and each groove 10501 has three limiting blocks 10502 on both sides to limit the rock drill rod 2. All feeding racks 105 are mounted on the left and right sides together with a linkage frame 104. The lower side of the two linkage frames 104 is provided with a round rod, and the round rod contacts the wave-shaped ring 10301. When the second chassis 103 rotates, the round rod cooperates with the wave-shaped ring 10301, so that the linkage frame 104 swings up and down on both sides to ensure that there is no cooling blind zone for the rock drill rod 2.

[0018] The drive unit includes a first drive component 101, a first chassis 102, and a second drive component 108. The first drive component 101 is fixedly connected to the bottom of the gas quenching furnace 1. The first drive component 101 is a motor. The first chassis 102 is installed at the output end of the drive component. Four second drive components 108 in a ring array are fixedly connected to the upper surface of the first chassis 102. The second drive components 108 are electric push rods.

[0019] The groove 10501 is designed to be arc-shaped, which facilitates the rolling of the rock drill rod 2 and avoids the existence of a cooling blind zone.

[0020] The front of the outer frame 106 is provided with a rotatable rotating plate 10602, which facilitates material feeding.

[0021] When operating in harsh mining environments, the rock drill rod 2 experiences intense friction with various mineral materials. Therefore, the rock drill rod 2 needs to have high wear resistance to resist the damage that may be caused by intense friction, thereby extending its service life. Quenching and cooling is one of the key processes to ensure that the rock drill rod 2 meets performance requirements (especially wear resistance). Existing technology uses an air quenching furnace 1 to cool the rock drill rod 2. That is, the rock drill rod 2 is placed in the air quenching furnace 1, and then circulating cooling gas is introduced into the air quenching furnace 1 from both sides for cooling. In this process, the rock drill rod 2 suffers from uneven cooling. At the same time, since the rock drill rod 2 is in a stationary state, there is a significant cooling blind zone, resulting in poor cooling effect.

[0022] Before use, all parts except the drive unit and the second chassis 103 are placed on the feeding car outside the gas quenching furnace 1. The operator opens the rotating plate 10602 and places the rock drill rod 2 on the groove 10501 of each layer of feeding rack 105. After the feeding is completed, the rotating plate 10602 is closed. The feeding is carried out by the cooperation of the feeding auxiliary ring 10601 and the feeding car. The outer frame 106 is placed on the two support platforms 1003. The round rods on the lower side of the two linkage frames 104 are in contact with the wave-shaped ring 10301 set on the second chassis 103. There is a height difference between the round rods on the lower side of the two linkage frames 104. That is, one round rod is in contact with the highest point of the wave-shaped ring 10301, and the other round rod is in contact with the lowest point of the wave-shaped ring 10301, thus completing the feeding.

[0023] First, the second chassis 103 and all the parts above it are pushed by the second drive component 108 to the heating chamber on the upper side of the gas quenching furnace 1. Then, the rock drill rod 2 is heated by the heating chamber. After the heating is completed, it is lowered to the original height by the second drive component 108.

[0024] When the cooling process begins, the cooling airflow enters the gas quenching furnace 1 horizontally through the air inlet duct 1001, cools each rock drill bit 2 as it passes through it, and then leaves the gas quenching furnace 1 through the air outlet duct 1002, forming a unidirectional cooling airflow. At the same time, the first drive component 101 drives the first chassis 102, the second drive component 108, and the second chassis 103 to rotate together. During the rotation of the second chassis 103, the linkage frame 104 will swing up and down alternately, which will cause the feeding frame 105 to swing up and down on both sides in sync. The rock drill bit 2 can start to roll on the groove 10501 of the feeding frame 105, thereby eliminating the cooling blind zone. Furthermore, the limiting blocks 10502 located on the left and right sides of each groove 10501 will limit the range of motion of the rock drill bit 2, ensuring that the rock drill bit 2 only rolls within the groove 10501, thereby achieving the purpose of sufficient cooling.

[0025] Example 2 Based on Example 1, such as Figures 9-12As shown, it also includes a collection assembly, which includes a collection bin 201, a temporary collection tray 202, an auxiliary rod 203, a wind deflector 204, a cover plate 205, a wire mesh 206, and a sealing plate 207. Several collection bins 201 are arranged from top to bottom on the outer frame 106, and each collection bin 201 is located below the corresponding discharge rack 105. Each collection bin 201 has a temporary collection tray 202 on its left side, and the bottom plate of each temporary collection tray 202 is composed of multiple... The rotating base plate 20201 with a torsion spring is used to facilitate the collection of oxides in conjunction with the collection bin 201. A connecting rod 20202 is installed on the side of each rotating base plate 20201 away from the torsion spring. A baffle plate 204 is fixed to the left end of each discharge rack 105, and each baffle plate 204 contacts the right side of the connecting rod 20202 of the adjacent temporary collection tray 202. When the baffle plate 204 rotates downwards, it drives the rotating base plate 20201 to rotate downwards via the connecting rod 20202. When the wind deflector 204 is not in contact with the connecting rod 20202, the rotating base plate 20201 returns to its original position via a torsion spring, thereby collecting oxides; when the wind deflector 204 rotates upward, it drives the connecting rod 20202 to rotate, causing it to retract into the temporary collection tray 202; several auxiliary rods 203 are fixedly connected to each collection bin 201; a cover plate 205 is installed on all the auxiliary rods 203 located in the same collection bin 201; several passages are opened on each discharge rack 105. The troughs are arranged between two adjacent feed racks 105; a sealing plate 207 is fixed to each auxiliary rod 203, and each sealing plate 207 is installed on the corresponding feed trough and seals the feed trough; when the feed rack 105 swings up and down on both sides, the sealing plate 207 seals and opens the feed trough, thereby changing the airflow path; a wire mesh 206 is installed between the adjacent collection bin 201 and the left side of the cover plate 205.

[0026] In the prior art, when cooling the rock drill rod 2 in the cooling chamber of the gas quenching furnace 1, high-purity nitrogen is often filled in the cooling chamber to prevent oxidation of the rock drill rod 2 and the formation of oxides, taking into account economic benefits. However, this anti-oxidation method can be compromised by insufficient nitrogen purity, aging of the sealing ring or other sealing parts of the gas quenching furnace 1, and air entering due to material feeding and discharging. This can damage the anti-oxidation effect, causing oxides to appear during cooling. The cooling airflow can then cause the oxides to move irregularly within the gas quenching furnace 1, making them difficult to clean and affecting the cooling process and the normal operation of other parts.

[0027] To address the aforementioned issues, this invention incorporates a collection component. When the two linkage frames 104 are adjusted to their initial state, as shown in the figure, the through groove on the discharge frame 105 is tightly fitted with the sealing plate 207. When the discharge frame 105 begins to swing, a gap appears between the through groove on the discharge frame 105 and the sealing plate 207. At this time, the cooling airflow can directly blow the oxide through the through groove into the collection chamber 201, achieving collection. Simultaneously, the rock drill rod, which rolls left and right on the groove 10501, is collected. 2 will collide with the limiting block 10502, and the oxide generated on its surface will fall off, effectively improving the cooling effect. The cooling airflow blows the fallen oxide toward the metal wire mesh 206. When the feeding rack 105 and its left-side baffle 204 swing upward together, the cooling airflow between the temporary collection tray 202 and the cover plate 205 (upper channel) will flow through the channel to the channel between the temporary collection tray 202 and the collection bin 201 (lower channel). When the baffle 204 swings to the lower surface of the cover plate 205, Upon contact, the cooling airflow from the original upper channel is completely blocked by the baffle plate 204, preventing it from flowing through the wire mesh 206 to the outlet duct 1002. At this point, the oxides adhering to the wire mesh 206 fall into the temporary collection tray 202. Subsequently, as the baffle plate 204 swings downwards and begins to contact the connecting rod 20202, the connecting rod 20202 drives the rotating base plate 20201 to rotate downwards. At this time, the oxides on the rotating base plate 20201 will flow downwards along the inclined... The rotating base plate 20201 falls into the collection chamber 201. When the baffle plate 204 continues to swing downwards until it separates from the connecting rod 20202, several rotating base plates 20201 drive the connecting rod 20202 to return to their original positions through torsion springs, and form the base plate of the temporary collection tray 202 again. At the same time, when the discharge rack 105 returns to its original position, the lower channel is closed and there is no airflow, so that the fallen oxide enters the collection chamber 201, preventing the oxide from entering the air outlet duct 1002 and causing blockage.

[0028] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A quenching and cooling device for wear-resistant parts in mining, comprising an air quenching furnace (1); two support platforms (1003) are provided inside the air quenching furnace (1); characterized in that: It also includes a drive unit; the bottom of the gas quenching furnace (1) is equipped with a drive unit; a second chassis (103) is connected to the drive unit; an outer frame (106) is placed on the two support platforms (1003); several rotating shafts (107) are equidistantly connected from top to bottom on the inner side of (106); a feeding rack (105) for placing the rock drill rod (2) is rotatably connected to each rotating shaft (107); a linkage frame (104) is installed on the left and right sides of all feeding racks (105).

2. The quenching and cooling device for wear-resistant parts in mining according to claim 1, characterized in that: The drive unit includes a first drive component (101), a first chassis (102), and a second drive component (108); the first drive component (101) is fixedly connected to the bottom of the gas quenching furnace (1); the first chassis (102) is installed at the output end of the drive component; and four second drive components (108) in a ring array are fixedly connected to the upper surface of the first chassis (102).

3. The quenching and cooling device for wear-resistant parts in mining according to claim 1, characterized in that: The feeding rack (105) has several grooves (10501), and each groove (10501) is provided with a limit block (10502).

4. The quenching and cooling device for wear-resistant parts in mining according to claim 3, characterized in that: The groove (10501) is set to be arc-shaped.

5. The quenching and cooling device for wear-resistant parts in mining according to claim 1, characterized in that: A wave-shaped ring (10301) is provided on the second chassis (103).

6. The quenching and cooling device for wear-resistant parts in mining according to claim 1, characterized in that: Two feed auxiliary rings (10601) are provided on the left and right sides of the outer frame (106).

7. The quenching and cooling device for wear-resistant parts in mining according to claim 6, characterized in that: The front side of the outer frame (106) is provided with a rotatable rotating plate (10602).

8. The quenching and cooling device for wear-resistant parts in mining according to claim 7, characterized in that: It also includes a collection assembly, which includes a collection bin (201), a temporary collection tray (202), an auxiliary rod (203), a wind deflector (204), a cover plate (205), a wire mesh (206), and a sealing plate (207); several collection bins (201) are arranged from top to bottom on the outer frame (106), and each collection bin (201) is located below the corresponding feed rack (105); a temporary collection tray (202) is provided on the left side of each collection bin (201), and the bottom plate of each temporary collection tray (202) is composed of multiple rotating bottom plates (20201) equipped with torsion springs, which facilitates the collection of oxides in conjunction with the collection bin (201); a connecting rod (20202) is installed on the side of each rotating bottom plate (20201) away from the torsion spring; each Each feeding rack (105) has a baffle plate (204) fixed to its left end for controlling the airflow path, and each baffle plate (204) contacts the right side of the connecting rod (20202) of the adjacent temporary collection tray (202); each collection bin (201) has several auxiliary rods (203) fixed to it; all auxiliary rods (203) located in the same collection bin (201) share a cover plate (205); each feeding rack (105) has several through slots, and all through slots are located between two adjacent feeding racks (105); each auxiliary rod (203) has a sealing plate (207) fixed to it; and a metal wire mesh (206) for blocking oxides is installed between the left side of the adjacent collection bin (201) and the cover plate (205).

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