A quenching spray system for a sucker rod heat treatment furnace

Abstract

The utility model relates to the technical field of heat treatment of sucker rods, and discloses a quenching spray system for a heat treatment furnace of a sucker rod, the quenching spray system for a heat treatment furnace of a sucker rod, comprising a positioning seat, a quenching cylinder is rotatably installed inside the positioning seat, and a rotating spray mechanism is arranged inside the positioning seat. The quenching spray system for the heat treatment furnace of a sucker rod extends the heat-treated sucker rod into the central cavity of the quenching cylinder, and rotates the quenching cylinder, so that the cooling water sprayed from the spray hole can be continuously sprinkled on the outer surface of the sucker rod, and through the rotation of the quenching cylinder, the spray hole can achieve the effect of spray cooling on the entire outer surface of the sucker rod, and at the same time cooperates with the spiral drainage channel to diffuse and guide the spraying range of the cooling water, and improves the spraying influence area of ​​the cooling water, thereby avoiding the problem of uneven cooling and heat exchange efficiency of the external cooling of the sucker rod caused by a single water inlet method, and reducing the quenching effect of the sucker rod.

Description

Technical Field

[0001] The utility model relates to the technical field of heat treatment of pumping rods, in particular to a quenching spray system for a heat treatment furnace of a pumping rod. Background Art

[0002] The sucker rod is a slender rod of the pumping well. It is connected to the bare rod at the top and the oil pump at the bottom to transmit power. During the production process, the sucker rod is generally produced by forging. During the forging process, it needs to go through heat treatment, quenching, tempering and other processes. In the quenching operation of the sucker rod, spray quenching is usually used for cold treatment.

[0003] According to a publicly disclosed quenching spray system for a sucker rod heat treatment furnace (publication number: CN209322971U), in the above application, the quenching ring provided therein can ensure thorough quenching, good hardenability, small quenching deformation, easy straightening of the treated workpiece, uniform temperature change during the quenching process, thorough transformation of the crystal phase structure, and good quenching cooling effect.

[0004] However, in actual use of the above equipment, the contact between the cooling water and the sucker rod is from top to bottom. After the cooling water exchanges heat with the sucker rod, its heat exchange capacity becomes worse and worse as it flows downward, which makes the cooling efficiency of the sucker rod at different positions in the quenching ring inconsistent, which easily causes uneven strength of the sucker rod and affects the production quality of the sucker rod. In view of this, we propose a quenching spray system for a sucker rod heat treatment furnace. Summary of the invention

[0005] The utility model aims to provide a quenching spray system for a pumping rod heat treatment furnace to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a quenching spray system for a pump rod heat treatment furnace, comprising a positioning seat, a quenching cylinder is rotatably installed inside the positioning seat, a rotary spray mechanism is arranged inside the positioning seat, and the rotary spray mechanism comprises:

[0007] A water inlet ring, the end of the positioning seat is fixedly mounted with a water inlet ring, and the top of the water inlet ring is fixedly mounted with a water inlet valve;

[0008] A mounting plate, a mounting plate is fixedly mounted on the top outer wall of the positioning seat, a driving motor is fixedly mounted on the side wall of the mounting plate, a pinion is fixedly connected to the output end of the driving motor, a gear ring is sleeved on the arc-shaped outer wall of the quenching cylinder, and the pinion is meshed with the gear ring;

[0009] A water inlet channel is provided on the arc-shaped outer wall of the quenching cylinder, a spray hole is provided on the arc-shaped inner surface of the quenching cylinder, and a spiral drainage channel is provided on the arc-shaped inner surface of the spray hole.

[0010] Preferably, the positioning seat is cylindrical on the upper side and U-shaped on the lower side, so as to facilitate the rotatable installation of the quenching cylinder in the cylindrical cavity above the positioning seat. The U-shaped portion of the positioning seat is high in the middle and low at both ends, so that the cooling water dripping to the bottom of the positioning seat can be discharged outward from both ends of the positioning seat in time.

[0011] Preferably, the water inlet channel is provided with a water inlet at one end close to the water inlet ring, so that the cooling water entering the water inlet ring can enter the water inlet channel through the water inlet, and the water inlet channel is connected with the spray hole.

[0012] Preferably, the spiral drainage channel is arranged on the arc-shaped inner surface of the spray hole, and the spray hole includes a large diameter end and a small diameter end, the large diameter end is arranged close to the water inlet channel, and the small diameter end is arranged close to the central cavity of the quenching cylinder, so as to form a flow velocity difference inside and outside the spray hole.

[0013] Preferably, a diversion groove is provided on the inner wall of the bottom end of the spiral drainage channel, a fixed shaft is fixedly installed on the inner surface of the diversion groove, a spoiler plate passes through the fixed shaft, and the spoiler plate is rotatably connected to the fixed shaft, a volute spring is sleeved on the outer wall of the fixed shaft, and an arc groove is provided on the side wall of the spoiler plate.

[0014] Preferably, the curved portion of the arc-shaped groove is arranged close to one side of the central axis of the spoiler, and the arc-shaped grooves are arranged in two groups, and the two groups of arc-shaped grooves are mirror-imaged at both ends of the spoiler.

[0015] Compared with the prior art, the utility model provides a quenching spray system for a pumping rod heat treatment furnace, which has the following beneficial effects:

[0016] 1. The quenching spray system of the sucker rod heat treatment furnace extends the heat-treated sucker rod into the central cavity of the quenching cylinder, starts the driving motor, and cooperates with the pinion to make the gear ring drive the quenching cylinder to rotate, so that the cooling water sprayed from the spray hole can be continuously sprinkled on the outer surface of the sucker rod, and through the rotation of the quenching cylinder, the spray hole can achieve the effect of spray cooling on the entire outer surface of the sucker rod, and at the same time cooperate with the spiral drainage channel to diffuse and guide the spraying range of the cooling water, increase the spraying influence area of ​​the cooling water, thereby avoiding the problem of uneven external cooling heat exchange efficiency of the sucker rod caused by a single water inlet method, and reducing the quenching effect of the sucker rod.

[0017] 2. The quenching spray system of the sucker rod heat treatment furnace, through the spiral drainage channel arranged in the spray hole and the spoiler arranged in the diverter groove, allows the sprayed cooling water to form a lateral external force on the spoiler through the arc groove, and then under the elastic force of the spiral spring, the spoiler will be deflected disorderly with the fixed axis as the rotation axis, so that the cooling water sprayed from the diverter groove can have a larger diffusion range, so as to improve the spray effect of the device, thereby ensuring the quenching processing quality of the sucker rod. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the main structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the cross-sectional structure of the positioning seat of the utility model;

[0020] Figure 3 This is a schematic diagram of the three-dimensional structure of the quenching cylinder of the utility model;

[0021] Figure 4 It is a partial three-dimensional schematic diagram of the quenching cylinder of the utility model;

[0022] Figure 5 This is a schematic diagram of the cross-sectional structure of the spray hole of the utility model;

[0023] Figure 6 It is a schematic diagram of the explosion of the spoiler of the utility model.

[0024] In the figure: 1. positioning seat; 2. quenching cylinder; 3. water inlet ring; 4. water inlet valve; 5. mounting plate; 6. driving motor; 7. pinion; 8. gear ring; 9. water inlet channel; 10. drainage chamber; 11. spray hole; 12. spiral drainage channel; 13. diversion groove; 14. fixed shaft; 15. spoiler; 16. arc groove; 17. scroll spring. DETAILED DESCRIPTION

[0025] like Figure 1-Figure 6 As shown, the utility model provides a technical solution: a quenching spray system for a sucker rod heat treatment furnace, comprising a positioning seat 1, a quenching cylinder 2 is rotatably installed inside the positioning seat 1, a rotary spray mechanism is arranged inside the positioning seat 1, and the rotary spray mechanism comprises a water inlet ring 3, a water inlet valve 4, a mounting plate 5, a drive motor 6, a pinion 7, a gear ring 8, a water inlet channel 9, a spray hole 11 and a spiral drainage channel 12.

[0026] In an embodiment of the utility model, a water inlet ring 3 is fixedly installed at the end of the positioning seat 1, a water inlet valve 4 is fixedly installed at the top of the water inlet ring 3, a mounting plate 5 is fixedly installed on the top outer wall of the positioning seat 1, a driving motor 6 is fixedly installed on the side wall of the mounting plate 5, a pinion 7 is fixedly connected to the output end of the driving motor 6, a gear ring 8 is sleeved on the arc-shaped outer wall of the quenching cylinder 2, the pinion 7 is meshed with the gear ring 8, a water inlet channel 9 is opened on the arc-shaped outer wall of the quenching cylinder 2, a spray hole 11 is opened on the arc-shaped inner surface of the quenching cylinder 2, and a spiral drainage channel 12 is provided on the arc-shaped inner surface of the spray hole 11.

[0027] In one embodiment of the utility model, the positioning seat 1 is cylindrical at the top and U-shaped at the bottom, so that the quenching cylinder 2 can be rotatably installed in the cylindrical cavity above the positioning seat 1. At the same time, the U-shaped portion of the positioning seat 1 is high in the middle and low at both ends, so that the cooling water dripping to the bottom of the positioning seat 1 can be discharged outward from both ends of the positioning seat 1 in time, and the cooling water is prevented from accumulating at the bottom of the positioning seat 1. At the same time, a plurality of circular holes are opened on the arc-shaped outer surface of the top cylindrical structure of the positioning seat 1, so that the hot air in the internal cavity of the positioning seat 1 can be discharged upward, thereby avoiding causing the overall temperature inside the positioning seat 1 to rise rapidly. Increase, affecting the overall quenching and cooling effect of the device. In addition, the water inlet valve 4 is fixedly connected to the output end of the external water pump, and the water pump is externally connected to the cooling water circulation system, and the water pump continuously supplies water, so that the cooling water used for spray quenching enters the interior of the water inlet ring 3 through the water inlet valve 4. Furthermore, the gear ring 8 is sleeved on the arc-shaped outer wall of the quenching cylinder 2, and the gear ring 8 is fixedly connected to the quenching cylinder 2. By starting the drive motor 6 and cooperating with the pinion 7, the gear ring 8 drives the quenching cylinder 2 to rotate inside the positioning seat 1. At the same time, the water inlet channel 9 is provided with a water inlet at one end close to the water inlet ring 3 to facilitate entering the water inlet ring 3. The internal cooling water can enter the water inlet channel 9 through the water inlet. In addition, the water inlet channel 9 is connected with the spray hole 11, so that the cooling water is sprayed out from the spray hole 11 under the action of water pressure. Specifically, the number of drainage chambers 10 is set in three groups, and the three groups of drainage chambers 10 are evenly distributed on the arc-shaped outer wall of the quenching cylinder 2 in a circular array, so that the cooling water sprayed from the spray hole 11 can flow downward through the drainage chamber 10 to the U-shaped part at the bottom of the positioning seat 1 after contacting the sucker rod in the central cavity of the quenching cylinder 2, and then be discharged outward. Furthermore, the spiral drainage channel 12 is arranged in the arc of the spray hole 11. On the inner surface, the spray hole 11 includes a large diameter end and a small diameter end. Specifically, the large diameter end is arranged close to the water inlet channel 9, and the small diameter end is arranged close to the central cavity of the quenching cylinder 2, so as to form a flow velocity difference inside and outside the spray hole 11, thereby improving the spraying effect of the cooling water sprayed from the spray hole 11, so that it can be better sprayed on the outer surface of the sucker rod to achieve quenching work. At the same time, the bottom end of the spiral drainage channel 12 is kept flush with the bottom end of the spray hole 11, thereby guiding the water flow entering the spray hole 11, increasing the diffusion area of ​​the cooling water sprayed from the spray hole 11, and improving the efficiency of the spraying operation.

[0028] In addition, a diverter groove 13 is provided on the inner wall of the bottom end of the spiral drainage channel 12, and a fixed shaft 14 is fixedly installed on the inner surface of the diverter groove 13. A spoiler 15 passes through the fixed shaft 14, and the spoiler 15 is rotatably connected to the fixed shaft 14. A volute spring 17 is sleeved on the outer wall of the fixed shaft 14, and an arc groove 16 is provided on the side wall of the spoiler 15.

[0029] In the embodiment of the utility model, the diverter groove 13 is opened at the bottom end of the spiral drainage channel 12, and the diverter groove 13 is close to the small diameter end of the spray hole 11. At the same time, a circular groove with a diameter larger than the outer diameter of the spiral spring 17 is opened at the end of the spoiler 15, and the two ends of the spiral spring 17 are respectively fixedly connected to the arc-shaped outer wall of the fixed shaft 14 and the bottom inner surface of the circular groove, so that when the spoiler 15 rotates with the fixed shaft 14 as the rotation axis, the spiral spring 17 will give the spoiler 15 a movement tendency to rotate in the opposite direction. In addition, the curved portion of the arc groove 16 is close to the spoiler. The plate 15 is arranged on one side of the central axis, and there are two groups of arc grooves 16, and the two groups of arc grooves 16 are mirror-imaged at both ends of the spoiler 15, so that when the cooling water sprayed from the spray hole 11 flows through the diverter groove 13, a lateral external force will be formed on the spoiler 15 through the arc groove 16, and then under the elastic force of the spiral spring 17, the spoiler 15 will deflect disorderly with the fixed axis 14 as the rotation axis, so that the cooling water sprayed from the diverter groove 13 can have a larger diffusion range, so as to improve the spraying effect of the device, thereby ensuring the quenching processing quality of the sucker rod.

[0030] In the present invention, when in use, the external water pump is started, and the cooling water is input into the water inlet ring 3 through the water inlet valve 4, and the cooling water is sprayed toward the central cavity of the quenching cylinder 2 through the water inlet channel 9 and the spray hole 11. At this time, the heat-treated sucker rod is extended into the central cavity of the quenching cylinder 2, and the driving motor 6 is started, and the pinion 7 is matched to make the gear ring 8 drive the quenching cylinder 2 to rotate, so that the cooling water sprayed from the spray hole 11 can be continuously sprinkled on the outer surface of the sucker rod, and through the rotation of the quenching cylinder 2, the spray hole 11 can achieve the effect of spray cooling on the entire outer surface of the sucker rod. The effect is achieved, thereby avoiding the problem of uneven cooling and heat exchange efficiency of the external cooling of the sucker rod caused by a single water inlet method, which reduces the quenching effect of the sucker rod. At the same time, through the spiral drainage channel 12 set in the spray hole 11 and the spoiler 15 set in the diverter groove 13, the sprayed cooling water forms a lateral external force on the spoiler 15 through the arc groove 16, and then under the elastic force of the spiral spring 17, the spoiler 15 will deflect disorderly with the fixed axis 14 as the rotation axis, so that the cooling water sprayed from the diverter groove 13 can have a larger diffusion range, so as to improve the spraying effect of the device, thereby ensuring the quenching processing quality of the sucker rod.

[0031] The above generally describes the present invention in detail, but it is obvious to a person skilled in the art that some modifications or improvements can be made to the present invention. Therefore, modifications or improvements that do not deviate from the spirit of the present invention are within the scope of protection of the present invention.

Claims

1. A quenching spray system for a pump rod heat treatment furnace, comprising a positioning seat (1), wherein a quenching cylinder (2) is rotatably mounted inside the positioning seat (1), characterized in that: A rotary spray mechanism is provided inside the positioning seat (1), and the rotary spray mechanism comprises: A water inlet ring (3), the end of the positioning seat (1) being fixedly mounted with the water inlet ring (3), and the top of the water inlet ring (3) being fixedly mounted with a water inlet valve (4); A mounting plate (5), the top outer wall of the positioning seat (1) is fixedly mounted with the mounting plate (5), the side wall of the mounting plate (5) is fixedly mounted with a driving motor (6), the output end of the driving motor (6) is fixedly connected with a pinion (7), the arc-shaped outer wall of the quenching cylinder (2) is sleeved with a gear ring (8), and the pinion (7) is meshed with the gear ring (8); A water inlet channel (9) is provided on the curved outer wall of the quenching cylinder (2), a spray hole (11) is provided on the curved inner surface of the quenching cylinder (2), and a spiral drainage channel (12) is provided on the curved inner surface of the spray hole (11).

2. The quenching spray system for a pumping rod heat treatment furnace according to claim 1, characterized in that: The positioning seat (1) is cylindrical at the top and U-shaped at the bottom, and the U-shaped portion of the positioning seat (1) is high in the middle and low at both ends.

3. The quenching spray system for a pumping rod heat treatment furnace according to claim 1, characterized in that: The water inlet channel (9) is provided with a water inlet at one end close to the water inlet ring (3), and the water inlet channel (9) is connected to the spray hole (11).

4. The quenching spray system for a pumping rod heat treatment furnace according to claim 1, characterized in that: The spiral drainage channel (12) is arranged on the arc-shaped inner surface of the spray hole (11), and the spray hole (11) comprises a large diameter end and a small diameter end, the large diameter end is arranged close to the water inlet channel (9), and the small diameter end is arranged close to the central cavity of the quenching cylinder (2).

5. The quenching spray system for a pumping rod heat treatment furnace according to claim 1, characterized in that: The inner wall of the bottom end of the spiral drainage channel (12) is provided with a flow dividing groove (13), the inner surface of the flow dividing groove (13) is fixedly mounted with a fixed shaft (14), the fixed shaft (14) is penetrated by a spoiler (15), and the spoiler (15) is rotatably connected to the fixed shaft (14), the outer wall of the fixed shaft (14) is sleeved with a volute spring (17), and the side wall of the spoiler (15) is provided with an arc groove (16).

6. The quenching spray system for a pumping rod heat treatment furnace according to claim 5, characterized in that: The curved portion of the arc-shaped groove (16) is arranged close to one side of the central axis of the spoiler (15), and the arc-shaped groove (16) is arranged in two groups, and the two groups of arc-shaped grooves (16) are arranged in a mirror-like manner at both ends of the spoiler (15).

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