A kind of heat treatment equipment and process for suspended breaker hammer drill rod

Abstract

The present invention belongs to the technical field of heat treatment of hammer drill rods, and specifically is a suspended type heat treatment equipment and process for crushing hammer drill rods, comprising a quenching furnace, a quenching tank, a first tempering furnace, an air cooling chamber; a second tempering furnace, a lifting plate and a track plate; the track plates are connected end to end, and a hanging plate is provided on the track plate; a hammer drill rod is placed on the bottom end of the hanging plate through a hook; the lifting plate moves up and down through an elevator; the lifting plate is located directly above the quenching tank; the hanging plate passes through the quenching furnace, the lifting plate, the first tempering furnace, the air cooling chamber and the second tempering furnace in sequence through the track plate; a plurality of pairs of first sliding blocks are slidably connected to the inner bottom surface of the quenching tank, and a lead screw is rotatably connected to the inner wall of the quenching tank, the lead screw is driven by a first motor, and the first motor is fixed to the outer wall of the quenching tank; so as to solve the problem of improper treatment of oxide scale on the surface of the workpiece.

Description

Technical Field

[0001] The invention belongs to the technical field of hammer drill rod heat treatment, in particular to a suspension type crushing hammer drill rod heat treatment device and process. Background Art

[0002] A breaker bar is a tool used to break and separate hard materials. It is mainly used in demolition of buildings, deep drilling, geothermal development and foundation engineering construction.

[0003] The working principle of the breaker hammer drill rod is to rely on the air compressor or compressed air to provide power to drive the breaker hammer to generate impact force to achieve the downward pressure and rotation of the drill rod.

[0004] In the prior art, after quenching in a quenching furnace, the workpiece needs to enter a quenching tank for uniform cooling treatment, but there are the following problems: after the workpiece comes out of the high-temperature quenching furnace, due to being in a high-temperature state, it will undergo a rapid oxidation reaction with the air, forming a thick film, that is, an oxide scale, on the surface of the workpiece. During the subsequent uniform cooling treatment through the quenching tank, although the quenching liquid is in a flowing setting, the oxide scale cannot be completely separated from the workpiece by the flowing quenching liquid, resulting in the workpiece with the oxide scale not cleaned being brought into the first tempering furnace after cooling, affecting the tempering quality of the workpiece, and also causing the workpiece surface to be uneven, affecting the heat treatment quality of the hammer drill rod workpiece.

[0005] To this end, the present invention provides a suspension type breaker hammer drill rod heat treatment equipment and process. Summary of the invention

[0006] In order to make up for the shortcomings of the existing technology, the problem of improper treatment of oxide scale on the surface of the workpiece is solved.

[0007] The technical solution adopted by the present invention to solve its technical problem is: the suspended breaker hammer drill rod heat treatment equipment described in the present invention comprises a quenching furnace, a quenching tank, a first tempering furnace, an air cooling chamber, a second tempering furnace, a lifting plate and a track plate; the track plates are connected end to end, and a hanging plate is provided on the track plate; a hammer drill rod is placed on the bottom end of the hanging plate through a hook; the lifting plate moves up and down through an elevator; the lifting plate is located directly above the quenching tank; the hanging plate passes through the quenching furnace, the lifting plate, the first tempering furnace, the air cooling chamber and the second tempering furnace in sequence through the track plate; a plurality of pairs of first sliders are slidably connected to the inner bottom surface of the quenching tank, and a lead screw is rotatably connected to the inner wall of the quenching tank, the lead screw is driven by a first motor, and the first motor The machine is fixed on the outer wall of the quenching tank; multiple pairs of the first sliders are connected to the screw through a screw nut pair, and when the screw rotates, the relative first sliders move toward each other; a pair of the first sliders are fixed with a movable plate, and an inner arc surface is provided on the opposite surfaces of a pair of movable plates; a pair of symmetrically distributed first cavities are provided in the movable plate, and a group of first through grooves are provided in the first cavity, and the first cavities are interconnected through the first through grooves and the inner arc surface; a rotating column is rotatably connected in the first through groove through a rotating shaft, and a knocking ball is fixed to the end of the rotating column extending out of the first through groove, and the other end of the rotating column extends into the first cavity; a circulating power part is provided in the first cavity, and the circulating power part drives the rotating column to rotate cyclically.

[0008] Preferably, the circulating power part includes a first rotating shaft and a power unit; a first rotating shaft is rotatably connected between the upper and lower inner walls of the first cavity; a group of discs are fixedly connected to the first rotating shaft, and the outer wall of the disc is an annular corrugated surface; an annular corrugated groove is provided on the annular corrugated surface; an annular corrugated slide groove is provided on the upper and lower side walls of the annular corrugated groove; a first slide groove is provided between adjacent side walls of the first cavity, and a moving rod is slidably connected in the first slide groove, and a sliding rod is fixedly connected to the middle of the moving rod; one end of the sliding rod extends into the annular The first rotating rod is rotatably connected to the upper and lower side walls of the sliding rod, and the first rotating rod is slidably connected to the corresponding annular corrugated groove; second rotating rods are provided on the side walls on both sides of the other end of the sliding rod; a moving block is fixedly connected to the end of the rotating column located in the first cavity; a sliding groove is provided on the side wall of the moving block; second sliding grooves are provided on the side walls on both sides of the sliding groove; the end of the sliding rod extends into the sliding groove, and the second rotating rod is slidably connected to the corresponding second sliding groove; the first rotating shaft is rotated by the power unit.

[0009] Preferably, the power unit includes a second motor; the bottom cross-section of the quenching tank is an isosceles trapezoid, and a second through slot is provided in the bottom end of the quenching tank, and the cross-section of the second through slot is an isosceles trapezoid; a group of second cavities are provided in the bottom end of the quenching tank; a second motor is fixedly connected in the second cavity; the output end of the second motor is provided with a first gear through a rotating shaft, and the first gear is located in the second through slot; a pair of third slide slots are provided on the bottom end of the quenching tank, and the bottom end of the third slide slot and the second through slot are connected to each other; the bottom end of the first rotating shaft extends into the second through slot through the third slide slot and is fixedly connected to the third gear; a group of second gears are provided at the bottom of the second through slot through the rotating shaft, and the positions of the second gear and the third gear correspond to each other, and the vertical plane where the center points of the two are located coincides with the vertical plane where the third slide slot is located; the second gear and the first gear are meshed with each other; when a pair of the movable plates move in opposite directions or toward each other, the second gear and the third gear are meshed with or separated from each other.

[0010] Preferably, a third through slot is opened in the end of the sliding rod located in the sliding slot; a sliding block is fixed to the side wall of the third through slot through a spring; the sliding block is slidably connected in the third through slot; and a pair of the second rotating rods are rotatably connected to the side walls of the sliding block respectively.

[0011] Preferably, a first arc-shaped through groove is opened at a position near the top of the inner arc surface, and both ends and the top of the first arc-shaped through groove are in a through state; an arc-shaped plate is slidably connected in the first arc-shaped through groove; a pair of symmetrically distributed connecting rods are fixed on the inner arc wall of the arc plate, and an arc-shaped grinding block is fixed at the end of the connecting rod; the arc plate is rotated by a rotating member.

[0012] Preferably, the rotating member includes a third cavity; a pair of symmetrically distributed third cavities are opened in the top of the movable plate, and the third cavity is located directly above the first cavity; the third cavity and the first arc-shaped through groove are connected to each other; the top of the first rotating shaft extends into the third cavity and is fixedly connected to a fourth gear; a group of teeth are fixedly connected to the outer wall of the arc-shaped plate; the outer wall of the arc-shaped plate is meshed with the fourth gear through a group of teeth.

[0013] Preferably, the connecting rod is elastically telescopic; and the upper and lower side walls of the arc-shaped grinding block are both rounded.

[0014] Preferably, a pair of symmetrically distributed fixed columns are fixed to the top of the arc plate, and a rotating plate is fixed to the top of the fixed columns, and the rotating plate is arc-shaped; a second arc-shaped through groove is opened on the inner arc wall of the rotating plate; a group of rotating columns are rotatably connected on the upper and lower side walls of the second arc-shaped through groove, and a flexible water-absorbing material is fixed to the outer side wall of the rotating column, and the flexible water-absorbing material is high-temperature resistant; the cross-section of the flexible water-absorbing material is elliptical.

[0015] Preferably, an arc-shaped inclined groove is provided at the bottom end of the second arc-shaped through groove; an arc-shaped water flow groove is provided on the outer arc wall of the rotating plate, and the arc-shaped water flow groove and the arc-shaped inclined groove are interconnected; the inner arc wall of the second arc-shaped through groove is in a state of squeezing the flexible water-absorbing material.

[0016] A suspension type breaker hammer drill rod heat treatment process, the process adopts the suspension type breaker hammer drill rod heat treatment equipment mentioned above, the process steps are as follows:

[0017] S1: First, the hammer drill rod workpiece is placed on the hanging plate, and then enters the quenching furnace through the track plate to perform the quenching process. Then the hammer drill rod workpiece comes out of the tail of the quenching furnace and enters the lifting plate. Then it is lowered by the elevator and the hammer drill rod workpiece is immersed in the quenching tank for quenching treatment;

[0018] S2: After the hammer drill rod workpiece enters the quenching tank, the hammer drill rod workpiece will be located between the relative moving plates. The first motor is rotated to make the pair of moving plates move toward each other. After the pair of moving plates move, the hammer drill rod workpiece is knocked and vibrated by the knocking ball driven by the circulating power part. After the hammer drill rod workpiece is cooled, the hammer drill rod workpiece is separated from the quenching tank by the elevator.

[0019] S3: The hammer drill rod workpiece enters the first tempering furnace through the movement of the hanging plate to perform the first tempering process. After the first tempering is completed, it enters the air cooling chamber for air cooling treatment, and then enters the second tempering furnace again to perform the second tempering process. After the second tempering process is completed, the heat treatment of the hammer drill rod workpiece is completed.

[0020] The beneficial effects of the present invention are as follows:

[0021] 1. The suspended breaker hammer drill rod heat treatment equipment and process described in the present invention drives the rotating column to rotate cyclically through the circulating power part, and then drives the knocking ball to knock and vibrate the workpiece immersed in the liquid in the quenching tank. At the same time, the flow of the quenching liquid (existing technology, water pump, etc.) and the vibration of the knocking ball can help the oxide scale on the surface of the workpiece to be quickly detached, will not affect the uniform cooling of the quenching liquid on it (it is difficult to dissipate heat in the area covered by the oxide scale), and can also ensure the cleaning effect.

[0022] 2. The suspended breaker hammer drill rod heat treatment equipment and process described in the present invention drives the arc plate to rotate through the rotating part, and the center points of a pair of first arc-shaped through grooves at this time coincide with each other. Therefore, when the rotating part rotates, it drives the arc plate from the first arc-shaped through groove of the movable plate on one side into the first arc-shaped through groove of the movable plate on the other side, so that the arc plate drives the arc-shaped grinding block to completely perform circular and comprehensive grinding treatment on the workpiece, and utilizes a slight grinding force to remove the oxide layer or some stubborn impurities on the surface of the workpiece. At the same time, the vibration of the knocking ball at this time can facilitate the removal of impurities after grinding. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The present invention will be further described below in conjunction with the accompanying drawings.

[0024] Figure 1 is a stereogram of the present invention;

[0025] Figure 2 It is a three-dimensional diagram of the quenching tank;

[0026] Figure 3 It is a front cross-sectional view of the quenching tank;

[0027] Figure 4 yes Figure 3 A partial enlarged view of the middle part;

[0028] Figure 5 yes Figure 3 A partial enlarged view of point B in the middle;

[0029] Figure 6 is a side cross-sectional view of the quench tank;

[0030] Figure 7 It is a bottom sectional view of the quenching tank;

[0031] Figure 8 is a stereogram of the moving plate;

[0032] Fig. 9 is a cross-section of the moving plate Figure 1 ;

[0033] Fig.10 is a cross-section of the moving plate Figure 2 ;

[0034] Fig.11 is a cross-section of the moving plate Figure 3 ;

[0035] Fig.12 It is the internal structure diagram of the mobile plate;

[0036] In the figure: 1, quenching furnace; 11, quenching tank; 12, first tempering furnace; 13, air cooling chamber; 14, second tempering furnace; 15, track plate; 16, hanging plate; 17, lifting plate; 2, first motor; 21, lead screw; 22, first slider; 23, moving plate; 24, inner arc surface; 25, first cavity; 26, first through groove; 27, rotating column; 28, knocking ball; 3, first rotating shaft; 31, disc; 32, annular corrugated surface; 33, annular corrugated groove; 34, annular corrugated slide; 35, first slide; 36, moving rod; 37, sliding rod; 38, first rotating rod; 39, moving block ;4, sliding groove;41, second sliding groove;42, second rotating rod;43, third through groove;44, sliding block;51, second through groove;52, second cavity;53, second motor;54, first gear;55, second gear;56, third gear;57, third sliding groove;6, first arc-shaped through groove;61, arc-shaped plate;62, connecting rod;63, arc-shaped grinding block;64, third cavity;65, fourth gear;66, teeth;71, fixed column;72, rotating plate;73, second arc-shaped through groove;74, rotating column;75, flexible water-absorbing material;76, arc-shaped water flow trough;77, arc-shaped inclined groove. 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 Figures 1 to 12As shown, a suspended breaker hammer rod heat treatment equipment according to an embodiment of the present invention comprises a quenching furnace 1, a quenching tank 11, a first tempering furnace 12, an air cooling chamber 13, a second tempering furnace 14, a lifting plate 17 and a track plate 15; the track plate 15 is connected end to end, and a hanging plate 16 is provided on the track plate 15; a hammer rod is placed on the bottom end of the hanging plate 16 through a hook; the lifting plate 17 moves up and down through a lift; the lifting plate 17 is located directly above the quenching tank 11; the hanging plate 16 passes through the quenching furnace 1, the lifting plate 17, the first tempering furnace 12, the air cooling chamber 13 and the second tempering furnace in sequence through the track plate 15 14; a plurality of pairs of first sliders 22 are slidably connected to the inner bottom surface of the quenching tank 11, and a lead screw 21 is rotatably connected to the inner wall of the quenching tank 11, the lead screw 21 is driven by the first motor 2, and the first motor 2 is fixedly connected to the outer wall of the quenching tank 11; a plurality of pairs of the first sliders 22 are connected to the lead screw 21 through a lead screw nut pair, and when the lead screw 21 rotates, the relative first sliders 22 move toward each other; a pair of the first sliders 22 are fixedly connected to a moving plate 23, and an inner arc surface 24 is provided on the opposite surfaces of the pair of moving plates 23; a pair of symmetrically distributed first cavities 25 are provided in the moving plate 23, and the first cavities 25 A group of first through grooves 26 are provided, and the first cavity 25 is interconnected with the inner arc surface 24 through the first through grooves 26; a rotating column 27 is rotatably connected in the first through grooves 26 through a rotating shaft, and a knocking ball 28 is fixedly connected to the end of the rotating column 27 extending out of the first through groove 26, and the other end of the rotating column 27 extends into the first cavity 25; a circulating power part is provided in the first cavity 25, and the circulating power part drives the rotating column 27 to rotate cyclically; in the prior art, after quenching in the quenching furnace 1, it is necessary to enter the quenching tank 11 for uniform cooling treatment, but there are the following problems: after the workpiece comes out of the high-temperature quenching furnace 1 , because it is in a high temperature state, it will undergo a rapid oxidation reaction with the air, forming a thick film, that is, oxide scale, on the surface of the workpiece. When the quenching tank 11 is used for uniform cooling treatment, although the quenching liquid is set to flow, the oxide scale cannot be completely separated from the workpiece by the flowing quenching liquid, resulting in that after the cooling is completed, the workpiece with the oxide scale not cleaned will be brought into the first tempering furnace 12, affecting the tempering quality of the workpiece, and also causing the surface of the workpiece to be uneven, affecting the heat treatment quality of the hammer rod workpiece; for this reason, the present invention is in operation (wherein the quenching furnace 1, the quenching tank 11, the first tempering furnace 12, the air cooling chamber 13;The second tempering furnace 14, the lifting plate 17, the track plate 15, the hanging plate 16 and the elevator (not shown) are all prior art, wherein the track plate 15 drives the hanging plate 16 to move through the chain drive, etc., which are all prior art operations. Since the present invention is at the quenching tank 11, the above-mentioned technology is not described in detail. When the workpiece enters the quenching tank 11, the workpiece will be located between the relative moving plates 23, and then the first motor 2 (servo motor) and the lead screw 21 drive the first slider 22 to move, thereby driving a pair of moving plates 23 to move toward each other (the lead screw 21 has multiple The pair of movable plates 23 are placed in a set position (the position at this time is that the center points of the inner arc surfaces 24 on the pair of movable plates 23 coincide with each other), and the circulating power member drives the rotating column 27 to rotate cyclically, thereby driving the knocking ball 28 to knock and vibrate the workpiece immersed in the liquid of the quenching tank 11. At the same time, the flow of the quenching liquid (existing technology, water pump, etc.) and the vibration of the knocking ball 28 can help the oxide scale on the surface of the workpiece to quickly detach, and will not affect the uniform cooling of the quenching liquid (it is difficult to dissipate heat in the area covered by the oxide scale), and can also ensure the cleaning effect. ;

[0039] The circulating power part includes a first rotating shaft 3 and a power unit; the first rotating shaft 3 is rotatably connected between the upper and lower inner walls of the first cavity 25; a group of discs 31 are fixedly connected to the first rotating shaft 3, and the outer wall of the disc 31 is an annular corrugated surface 32; an annular corrugated groove 33 is provided on the annular corrugated surface 32; an annular corrugated groove 33 is provided on the upper and lower side walls of the annular corrugated groove 33; an annular corrugated slide groove 34 is provided on the upper and lower side walls; a first slide groove 35 is provided between adjacent side walls of the first cavity 25, and a moving rod 36 is slidably connected in the first slide groove 35, and a sliding rod 37 is fixedly connected in the middle of the moving rod 36; one end of the sliding rod 37 extends into the annular corrugated groove 33, and the first rotating rod 38 is rotatably connected on the upper and lower side walls of the sliding rod 37, and the first rotating rod 38 is slidably connected in the corresponding annular corrugated slide groove 34; both sides of the side walls of the other end of the sliding rod 37 are provided There is a second rotating rod 42; the rotating column 27 is located at the end of the first cavity 25 and is fixed with a moving block 39; a sliding groove 4 is provided on the side wall of the moving block 39; a second sliding groove 41 is provided on the side walls of the sliding groove 4; the end of the sliding rod 37 extends into the sliding groove 4, and the second rotating rod 42 is slidably connected in the corresponding second sliding groove 41; the first rotating shaft 3 is rotated by the power unit; during operation, when the first rotating shaft 3 is rotated by the power unit, the disc 31 will be driven at this time. Because the first rotating rod 38 is located in the annular corrugated sliding groove 34, the rotation of the disc 31 will drive the sliding rod 37 to move back and forth, and the sliding rod 37 moves back and forth, and then the second rotating rod 42 is located in the second sliding groove 41 to drive the moving block 39 to rotate in a circle, and then drive the rotating column 27 to rotate in a circle, and then let the knocking ball 28 knock the surface of the workpiece back and forth.

[0040] The power unit includes a second motor 53; the bottom cross-section of the quenching tank 11 is an isosceles trapezoid, and a second through slot 51 is provided in the bottom end of the quenching tank 11, and the cross-section of the second through slot 51 is an isosceles trapezoid; a group of second cavities 52 are provided in the bottom end of the quenching tank 11; a second motor 53 is fixedly connected in the second cavity 52; a first gear 54 is provided at the output end of the second motor 53 through a rotating shaft, and the first gear 54 is located in the second through slot 51; a pair of third slide grooves 57 are provided on the bottom end of the quenching tank 11, and the bottom end of the third slide groove 57 and the second through slot 51 are connected to each other; the bottom end of the first rotating shaft 3 extends into the second through slot 51 through the third slide groove 57 and is fixedly connected with a third gear 56; the bottom of the second through slot 51 is provided with a A second gear 55 is formed, and the positions of the second gear 55 and the third gear 56 correspond to each other, and the vertical plane where the center points of the two are located coincides with the vertical plane where the third slide groove 57 is located; the second gear 55 and the first gear 54 are meshed with each other; when a pair of the movable plates 23 move in opposite directions or in opposite directions, the second gear 55 and the third gear 56 are meshed with or separated from each other; during operation, because the movable plate 23 needs to move back and forth to facilitate the entry and exit of the workpiece, the first gear 54, the second gear 55 and the third gear 56 are all spur gears. When a pair of movable plates 23 move in opposite directions, the second gear 55 and the third gear 56 can be disengaged, and when a pair of movable plates 23 move in opposite directions, the second gear 55 and the third gear 56 are meshed with each other again.

[0041] The sliding rod 37 is provided with a third through slot 43 at the end of the sliding slot 4; a sliding block 44 is fixedly connected to the side wall of the third through slot 43 through a spring; the sliding block 44 is slidably connected in the third through slot 43; a pair of the second rotating rods 42 are respectively rotatably connected to the side walls of the sliding block 44; when working, the second rotating rods 42 are rotatably connected to the two sides of the sliding block 44, and the sliding block 44 is fixedly connected to the third through slot 43 through a spring (hard spring), and a certain buffer space is increased through the third through slot 43 (in the absence of buffering, the knocking ball 28 just hits the workpiece or The workpiece cannot be touched, so the sliding rod 37 is pushed for a fixed distance, which means that the rotation angle of the rotating column 27 is also a fixed distance. Because the knocking ball 28 is rigid, such as a steel ball, the knocking ball 28 and the workpiece only contact each other, and the collision force is small, which is also prone to jamming). The knocking force on the workpiece and the operation of the rotating column 27 can be ensured. When the rotating column 27 is driven to rotate, the spring of the sliding block 44 is basically not deformed. Only when the knocking ball 28 and the workpiece collide with each other, the spring of the sliding block 44 will be slightly deformed due to the influence of the rigid resistance.

[0042] A first arc-shaped through groove 6 is provided near the top of the inner arc surface 24, and both ends and the top of the first arc-shaped through groove 6 are in a through state; an arc plate 61 is slidably connected in the first arc-shaped through groove 6; a pair of symmetrically distributed connecting rods 62 are fixedly connected to the inner arc wall of the arc plate 61, and an arc-shaped grinding block 63 is fixedly connected to the end of the connecting rod 62; the arc plate 61 is rotated by a rotating member; during operation, after cooling, the oxide scale will be basically cleaned up, but in order to avoid the oxide layer on the surface of the workpiece (the film generated at this time is a very thin film layer) or some stubborn small points (adherent oxide scale particles ) exists, so when the workpiece is taken out from a pair of movable plates 23, the rotating member will drive the arc plate 61 to rotate, and the center points of the positions of a pair of first arc-shaped through grooves 6 at this time coincide with each other. Therefore, when the rotating member rotates, it will drive the arc plate 61 from the first arc-shaped through groove 6 of the movable plate 23 on one side into the first arc-shaped through groove 6 of the movable plate 23 on the other side, and then the arc plate 61 drives the arc-shaped grinding block 63 to completely perform a circular and comprehensive grinding process on the workpiece, and use a slight grinding force to remove the oxide layer or some stubborn impurities on the surface of the workpiece. At the same time, the vibration of the knocking ball 28 at this time can facilitate the removal of impurities after grinding.

[0043] The rotating member includes a third cavity 64; a pair of symmetrically distributed third cavities 64 are opened in the top of the moving plate 23, and the third cavity 64 is located directly above the first cavity 25; the third cavity 64 and the first arc-shaped through groove 6 are connected to each other; the top of the first rotating shaft 3 extends into the third cavity 64 and is fixedly connected to a fourth gear 65; a group of teeth 66 are fixedly connected to the outer wall of the arc plate 61; the outer wall of the arc plate 61 is meshed with the fourth gear 65 through a group of teeth 66; when working, the second motor 53 is a servo motor, and in the initial state In this state, the center plane of the arc plate 61 and the center plane of the first arc-shaped through groove 6 coincide with each other, and then the second motor 53 drives the first rotating shaft 3 to rotate through the first gear 54, the second gear 55 and the third gear 56, which will drive the fourth gear 65 to rotate, and the fourth gear 65 rotates to drive the arc plate 61 to rotate, and then the arc plate 61 is allowed to reciprocate on a pair of movable plates 23 to complete the surface grinding of the removed workpiece. At the same time, after the grinding is completed, because the second motor 53 is a servo motor, the arc plate 61 can be restored to its initial position again.

[0044] The connecting rod 62 is elastically telescopic; the upper and lower side walls of the arc-shaped grinding block 63 are both chamfered; during operation, the telescopic setting of the connecting rod 62 can facilitate the fitting of the arc-shaped grinding block 63 to the surface of the workpiece, and the friction force is provided by the spring force, so there will be no situation where the grinding force is too large and the workpiece surface is over-grinded.

[0045] A pair of symmetrically distributed fixed columns 71 are fixedly connected to the top of the arc plate 61, and a rotating plate 72 is fixedly connected to the top of the fixed column 71, and the rotating plate 72 is arranged in an arc shape; a second arc-shaped through groove 73 is provided on the inner arc wall of the rotating plate 72; a group of rotating columns 74 are rotatably connected to the upper and lower side walls of the second arc-shaped through groove 73, and a flexible water-absorbing material 75 is fixedly connected to the outer wall of the rotating column 74, and the flexible water-absorbing material 75 is arranged to be resistant to high temperature; the cross-section of the flexible water-absorbing material 75 is elliptical; when working, the rotating plate 72 is located above the liquid level of the quenching tank 11. After the workpiece is cooled and polished, the rotating plate 72 rotates in the same direction through the rotation of the arc plate 61. The rotation of the rotating plate 72 will wipe the surface of the workpiece through the flexible water-absorbing material 75 to avoid the workpiece surface carrying a large amount of quenching liquid, which affects the subsequent tempering quality (the flexible water-absorbing material 75 can be a high-temperature resistant material such as absorbent cotton, which is a prior art).

[0046] An arc-shaped inclined groove 77 is provided at the bottom end of the second arc-shaped through groove 73; an arc-shaped water flow groove 76 is provided on the outer arc wall of the rotating plate 72, and the arc-shaped water flow groove 76 and the arc-shaped inclined groove 77 are interconnected; the inner arc wall of the second arc-shaped through groove 73 is in a squeezing state with the flexible water-absorbing material 75; during operation, because the inner arc wall of the second arc-shaped through groove 73 is in a squeezing state with the flexible water-absorbing material 75, when the flexible water-absorbing material 75 wipes the workpiece, it absorbs water while squeezing water, so that the flexible water-absorbing material 75 can ensure the drying effect of the workpiece, and at the same time, the liquid in the flexible water-absorbing material 75 will flow out through the arc-shaped inclined groove 77 and the arc-shaped water flow groove 76, and return to the quenching liquid again.

[0047] A suspension type breaker hammer drill rod heat treatment process, the process adopts the suspension type breaker hammer drill rod heat treatment equipment mentioned above, the process steps are as follows:

[0048] S1: First, the hammer drill rod workpiece is placed on the hanging plate 16, and then enters the quenching furnace 1 through the track plate 15 to perform the quenching process. Then, the hammer drill rod workpiece comes out of the tail of the quenching furnace 1 and then enters the lifting plate 17. Then, it is lowered by the elevator and the hammer drill rod workpiece is immersed in the quenching tank 11 for quenching treatment;

[0049] S2: After the hammer drill rod workpiece enters the quenching tank 11, the hammer drill rod workpiece will be located between the opposite moving plates 23. The first motor 2 is rotated to allow the pair of moving plates 23 to move toward each other. After the pair of moving plates 23 move, the hammer drill rod workpiece is knocked and vibrated by the circular power member and the knocking ball 28 is driven to knock and vibrate the hammer drill rod workpiece. After the hammer drill rod workpiece is cooled, the hammer drill rod workpiece is separated from the quenching tank 11 by the elevator.

[0050] S3: The hammer drill rod workpiece enters the first tempering furnace 12 again through the movement of the hanging plate 16 to perform the first tempering process. After the first tempering is completed, it enters the air cooling chamber 13 for air cooling treatment, and then enters the second tempering furnace 14 again to perform the second tempering process. After the second tempering process is completed, the heat treatment of the hammer drill rod workpiece is completed.

[0051] Working principle: When the workpiece enters the quenching tank 11, the workpiece will be positioned between the relatively movable plates 23, and then the first motor 2 (servo motor) and the lead screw 21 will drive the first slider 22 to move, thereby driving the pair of movable plates 23 to move toward each other, so that the pair of movable plates 23 are in the set position (at this time, the position is that the center points of the inner arc surfaces 24 on the pair of movable plates 23 coincide with each other), and when the first rotating shaft 3 is rotated by the power unit, the disc 31 will be driven at this time. Since the first rotating rod 38 is located in the annular corrugated slide groove 34, the rotation of the disc 31 will drive the sliding rod 37 to move back and forth, and the sliding rod 37 moves back and forth, and then the second rotating rod 42 is located in the second slide groove 41 to drive the moving block 39 to rotate cyclically, and then The rotating column 27 is driven to rotate cyclically, thereby driving the knocking ball 28 to knock and vibrate the workpiece immersed in the liquid of the quenching tank 11. At the same time, the flow of the quenching liquid (existing technology, water pump, etc.) and the vibration of the knocking ball 28 can help the oxide scale on the surface of the workpiece to quickly detach, which will not affect the uniform cooling of the quenching liquid (the heat dissipation at the oxide scale covered area is not easy), and can also ensure the cleaning effect; the second rotating rod 42 is rotatably connected to both sides of the sliding block 44, and the sliding block 44 is fixed to the third through groove 43 through a spring (hard spring), and a certain buffer space is increased through the third through groove 43 (in the absence of buffering, the knocking ball 28 just touches the workpiece or does not touch it, so the push of the sliding rod 37 is a fixed distance, that is, It is explained that the rotation angle of the rotating column 27 is also a fixed distance, and because the knocking ball 28 is rigid, such as a steel ball, the knocking ball 28 and the workpiece only contact each other when colliding, and the collision force is small, and it is also easy to get stuck), which can ensure the knocking force on the workpiece and the operation of the rotating column 27; after the cooling is completed, the oxide scale will be basically cleaned up at this time, but in order to avoid the oxide layer on the surface of the workpiece (the film produced is a very thin film layer) or some stubborn small points (adherent oxide scale particles), when the workpiece is taken out from a pair of movable plates 23, the rotating part will drive the arc plate 61 to rotate, and the center points of the positions of a pair of first arc-shaped through grooves 6 at this time coincide with each other, so when the rotating part rotates, it will drive the arc plate 61 enters the first arc-shaped through groove 6 of the movable plate 23 on one side into the first arc-shaped through groove 6 of the movable plate 23 on the other side, so that the arc-shaped plate 61 drives the arc-shaped grinding block 63 to completely perform circular and comprehensive grinding on the workpiece, and utilizes a slight grinding force to remove the oxide layer or some stubborn impurities on the surface of the workpiece. At the same time, the vibration of the knocking ball 28 at this time can facilitate the removal of impurities after grinding; the rotating plate 72 is located above the liquid level of the quenching tank 11. After the workpiece is cooled and ground, the rotating plate 72 is rotated through the rotation of the arc-shaped plate 61. The rotation of the rotating plate 72 will wipe the surface of the workpiece through the flexible water-absorbing material 75 to avoid the workpiece surface carrying a large amount of quenching liquid, which affects the subsequent tempering quality.

[0052] The above-mentioned front, back, left, right, top and bottom are all based on the figures in the specification. Figure 1 As a benchmark, according to the person's observation perspective, the side of the device facing the observer is defined as the front, the left side of the observer is defined as the left, and so on.

[0053] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the scope of protection of the present invention.

[0054] The above shows and describes the basic principles, main features and 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. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A suspended breaker hammer rod heat treatment equipment, comprising a quenching furnace (1), a quenching tank (11), a first tempering furnace (12), an air cooling chamber (13), a second tempering furnace (14), a lifting plate (17) and a track plate (15); the track plate (15) is connected end to end, and a hanging plate (16) is provided on the track plate (15); a hammer rod is placed on the bottom end of the hanging plate (16) through a hook; the lifting plate (17) moves up and down by a lift; the lifting plate (17) is located directly above the quenching tank (11); the hanging plate (16) passes through the quenching furnace (1), the lifting plate (17), the first tempering furnace (12), the air cooling chamber (13) and the second tempering furnace (14) in sequence through the track plate (15); characterized in that: A plurality of pairs of first sliders (22) are slidably connected to the inner bottom surface of the quenching tank (11), and a lead screw (21) is rotatably connected to the inner wall of the quenching tank (11), the lead screw (21) is driven by a first motor (2), and the first motor (2) is fixedly connected to the outer wall of the quenching tank (11); the plurality of pairs of the first sliders (22) are connected to the lead screw (21) through a lead screw nut pair, and when the lead screw (21) rotates, the relative first sliders (22) move towards each other; a pair of the first sliders (22) are fixedly connected to a moving plate (23), and the relative surfaces of the pair of moving plates (23) are provided with inner arc surfaces (24); A pair of symmetrically distributed first cavities (25) are provided in the movable plate (23), and a group of first through grooves (26) are provided in the first cavity (25), and the first cavities (25) are mutually connected with the inner arc surface (24) through the first through grooves (26); a rotating column (27) is rotatably connected in the first through groove (26) through a rotating shaft, and a knocking ball (28) is fixedly connected to the end of the rotating column (27) extending out of the first through groove (26), and the other end of the rotating column (27) extends into the first cavity (25); a circulating power component is provided in the first cavity (25), and the circulating power component drives the rotating column (27) to cyclically rotate; The circulating power part comprises a first rotating shaft (3) and a power unit; the first rotating shaft (3) is rotatably connected between the upper and lower inner walls of the first cavity (25); a group of disks (31) are fixedly connected to the first rotating shaft (3), and the outer wall of the disk (31) is an annular corrugated surface (32); an annular corrugated groove (33) is provided on the annular corrugated surface (32); an annular corrugated groove (34) is provided on the upper and lower side walls of the annular corrugated groove (33); first slide grooves (35) are provided between adjacent side walls of the first cavity (25), and a moving rod (36) is slidably connected in the first slide groove (35), and a sliding rod (37) is fixedly connected to the middle of the moving rod (36); one end of the sliding rod (37) extends into the annular corrugated groove (33), and the first rotating rod (38) is rotatably connected on the upper and lower side walls of the sliding rod (37), and the first rotating rod (38) is slidably connected in the corresponding annular corrugated sliding groove (34); second rotating rods (42) are provided on the side walls on both sides of the other end of the sliding rod (37); a moving block (39) is fixedly connected to the end of the rotating column (27) located in the first cavity (25); a sliding groove (4) is provided on the side wall of the moving block (39); second sliding grooves (41) are provided on the side walls on both sides of the sliding groove (4); the end of the sliding rod (37) extends into the sliding groove (4), and the second rotating rod (42) is slidably connected in the corresponding second sliding groove (41); the first rotating shaft (3) is rotated by the power unit; The power unit comprises a second motor (53); the bottom cross section of the quenching tank (11) is an isosceles trapezoid, and a second through slot (51) is provided in the bottom end of the quenching tank (11), and the cross section of the second through slot (51) is an isosceles trapezoid; a group of second cavities (52) is provided in the bottom end of the quenching tank (11); a second motor (53) is fixedly connected in the second cavity (52); a first gear (54) is provided at the output end of the second motor (53) through a rotating shaft, and the first gear (54) is located in the second through slot (51); a pair of third slide slots (57) are provided on the bottom end of the quenching tank (11), and the bottom end of the third slide slot (57) and The second through grooves (51) are interconnected; the bottom end of the first rotating shaft (3) extends into the second through groove (51) through the third sliding groove (57) and is fixedly connected with a third gear (56); a group of second gears (55) are arranged at the bottom of the second through groove (51) through the rotating shaft, and the positions of the second gear (55) and the third gear (56) correspond to each other, and the vertical plane where the center points of the second gear (55) and the vertical plane where the third sliding groove (57) are located coincide with each other; the second gear (55) and the first gear (54) are meshed with each other; when the pair of the movable plates (23) move in opposite directions or in opposite directions, the second gear (55) and the third gear (56) are meshed with or separated from each other; The sliding rod (37) is provided with a third through slot (43) at the end of the sliding slot (4); a sliding block (44) is fixedly connected to the side wall of the third through slot (43) via a spring; the sliding block (44) is slidably connected in the third through slot (43); a pair of the second rotating rods (42) are rotatably connected to the side walls of the sliding block (44) respectively; A first arc-shaped through groove (6) is provided near the top of the inner arc surface (24), and both ends and the top of the first arc-shaped through groove (6) are in a through-state; an arc-shaped plate (61) is slidably connected in the first arc-shaped through groove (6); a pair of symmetrically distributed connecting rods (62) are fixedly connected to the inner arc wall of the arc plate (61), and an arc-shaped grinding block (63) is fixedly connected to the end of the connecting rod (62); the arc plate (61) rotates through a rotating member; The rotating member comprises a third cavity (64); a pair of symmetrically distributed third cavities (64) are provided in the top of the movable plate (23), and the third cavity (64) is located directly above the first cavity (25); the third cavity (64) and the first arc-shaped through groove (6) are interconnected; the top of the first rotating shaft (3) extends into the third cavity (64) and is fixedly connected to a fourth gear (65); a group of teeth (66) is fixedly connected to the outer side wall of the arc-shaped plate (61); the outer side wall of the arc-shaped plate (61) is meshed with the fourth gear (65) through the group of teeth (66).

2. The suspended breaker hammer rod heat treatment equipment according to claim 1, characterized in that: The connecting rod (62) is elastically telescopic; the upper and lower side walls of the arc-shaped grinding block (63) are both rounded.

3. The heat treatment equipment for suspended breaker hammer rod according to claim 2 is characterized in that: A pair of symmetrically distributed fixed columns (71) are fixedly connected to the top of the arc-shaped plate (61), and a rotating plate (72) is fixedly connected to the top of the fixed column (71), and the rotating plate (72) is arranged in an arc shape; a second arc-shaped through groove (73) is provided on the inner arc wall of the rotating plate (72); a group of rotating columns (74) are rotatably connected on the upper and lower side walls of the second arc-shaped through groove (73), and a flexible water-absorbing material (75) is fixedly connected to the outer side wall of the rotating column (74), and the flexible water-absorbing material (75) is arranged to be resistant to high temperature; and the cross section of the flexible water-absorbing material (75) is elliptical.

4. The heat treatment equipment for suspended breaker hammer rod according to claim 3 is characterized in that: An arc-shaped inclined groove (77) is provided at the bottom end of the second arc-shaped through groove (73); an arc-shaped water flow groove (76) is provided on the outer arc wall of the rotating plate (72), and the arc-shaped water flow groove (76) and the arc-shaped inclined groove (77) are interconnected; and the inner arc wall of the second arc-shaped through groove (73) is in a state of squeezing the flexible water-absorbing material (75).

5. A heat treatment process for a suspended breaker hammer drill rod, the process adopts the heat treatment equipment for a suspended breaker hammer drill rod as claimed in claim 4, characterized in that: The process steps are as follows: S1: First, the hammer drill rod workpiece is placed on the hanging plate (16), and then enters the quenching furnace (1) through the track plate (15) to perform the quenching process. Then, the hammer drill rod workpiece comes out of the tail of the quenching furnace (1) and then enters the lifting plate (17). Then, it is lowered by the elevator and immersed in the quenching tank (11) to perform the quenching process. S2: After the hammer drill rod workpiece enters the quenching tank (11), the hammer drill rod workpiece will be located between the opposite movable plates (23). The first motor (2) is rotated to allow the pair of movable plates (23) to move toward each other. After the pair of movable plates (23) move, the hammer drill rod workpiece is struck and vibrated by a knocking ball (28) driven by a circulating power member. After the hammer drill rod workpiece is cooled, the hammer drill rod workpiece is separated from the quenching tank (11) by a lifter. S3: The hammer drill rod workpiece enters the first tempering furnace (12) again through the movement of the hanging plate (16) to perform the first tempering process. After the first tempering is completed, it enters the air cooling chamber (13) for air cooling treatment. Then it enters the second tempering furnace (14) again to perform the second tempering process. After the second tempering process is completed, the heat treatment of the hammer drill rod workpiece is completed.

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