Self-powered 0-180-degree swinging water nozzle for cooling aluminum alloy casting rod

Abstract

The utility model discloses a self-power 0-180-degree swinging water nozzle for cooling an aluminum alloy casting rod, which comprises a shell, the shell is provided with a first channel, a driving chamber and a second channel, the bottom of the driving chamber is communicated with the first channel, and the side surface of the driving chamber is communicated with the second channel; one end of the guiding and conveying piece is rotationally connected with the second channel in a sealed mode, and a nozzle is installed at the other end of the guiding and conveying piece; the rotating piece is installed in the driving chamber, and one end of the rotating piece extends out of the shell to be in transmission connection with the impeller along with the rotating disc and is in sealed rotating connection with the shell; the third connecting rod is close to the nozzle and is mounted on the guiding and conveying piece; the first connecting rod is hinged with the impeller along with the turntable; one end of the second connecting rod is hinged to the first connecting rod, and the other end of the second connecting rod is hinged to the third connecting rod; the swinging angle of the nozzle ranges from 0 degree to 180 degrees. The fan-shaped nozzle has the advantages of being capable of providing self-power to drive the nozzle to do fan-shaped reciprocating motion and the like.

Description

Technical Field

[0001] The utility model relates to a nozzle device, in particular to an automatic 0-180° swinging water nozzle for cooling aluminum alloy casting rods. Background Art

[0002] With the widespread application of aluminum alloy industrial materials and automotive materials, higher requirements are put forward for the homogenization and uniform cooling of high-quality aluminum alloy bars. How to make aluminum alloy bars cool uniformly is an important technical point in producing high-quality and high-uniformity aluminum alloy bars.

[0003] In the existing cooling system, the nozzle is fixedly installed, so the spraying is performed at a fixed angle. However, the cooling of aluminum alloy rods has a circular cooling ladder that radiates outward, that is, the cooling rate in the center is fast, and the cooling rate is slow as it spreads outward. It can be seen that the fixed angle spraying of the nozzle will result in a small spray coverage range, and it is impossible to achieve uniform coverage of the aluminum alloy rods. Utility Model Content

[0004] The utility model aims to provide an automatic 0°-180° swinging water nozzle for cooling aluminum alloy casting rods in view of the defects of the prior art.

[0005] In order to achieve the above-mentioned purpose of the utility model, the following technical solutions are adopted:

[0006] A self-powered 0°~180° swinging water nozzle for cooling aluminum alloy casting rods, comprising a shell, the shell is provided with a first channel, a driving chamber and a second channel, the bottom of the driving chamber is connected to the first channel, and the side is connected to the second channel; a guide member, one end of the guide member is sealed and rotatably connected to the second channel, and the other end is equipped with a nozzle; a rotating member, the rotating member is installed in the driving chamber, one end of the rotating member extends out of the shell and is connected to the impeller with the turntable transmission, and is sealed and rotatably connected to the shell; a third connecting rod, the third connecting rod is installed on the guide member close to the nozzle; a first connecting rod, the first connecting rod is hinged to the impeller with the turntable; and a second connecting rod, one end of the second connecting rod is hinged to the first connecting rod, and the other end is hinged to the third connecting rod; wherein the swing angle of the nozzle is 0°~180°.

[0007] Furthermore, the rotating member includes an impeller and an impeller shaft, and the impeller shaft passes through the casing and extends into the driving chamber to be transmission-connected with the impeller.

[0008] Furthermore, an automatic 0°-180° swinging water nozzle for cooling aluminum alloy casting rods of the present utility model further includes a limit cage, a boss and an impeller cover; a boss is provided at the connection between the drive chamber and the first channel; the limit cage is installed on the boss, and the bottom is rotatably connected to the impeller shaft, and the impeller shaft penetrates through the impeller cover; the impeller cover is movably buckled on the top of the drive chamber and presses the limit cage to be fixed on the boss; wherein, the limit cage is respectively communicated with the first channel and the second channel.

[0009] Furthermore, the impeller cover is threadedly connected to the housing.

[0010] Furthermore, an automatic 0°-180° swinging water nozzle for cooling aluminum alloy casting rods of the present utility model further includes a pressing plate and a first sealing ring. The impeller cover is provided with a pressing plate counterbore for installing the pressing plate. The bottom of the pressing plate counterbore is provided with a sealing ring counterbore for installing the first sealing ring. The bottom of the sealing ring counterbore is provided with a shaft hole; the impeller shaft penetrates through the shaft hole, the sealing ring counterbore, the first sealing ring, the pressing plate counterbore and the pressing plate; wherein, the pressing plate presses the first sealing ring to be fixedly installed in the sealing ring counterbore.

[0011] Furthermore, an automatic 0°-180° swinging water nozzle for cooling aluminum alloy casting rods of the present utility model further includes a plurality of bolts, and the pressing plate and the housing are fixedly connected by the plurality of bolts.

[0012] Furthermore, an automatic 0°-180° swinging water nozzle for cooling aluminum alloy casting rods of the present utility model further includes a bearing block, a first bearing, a shoulder, a spring and an end cover; a bearing block is provided at the connection between the second channel and the third channel, and the bearing block is provided with an outlet; the guiding member drives the first bearing, the spring and the end cover sleeved thereon to insert into the third channel and extends to the shoulder provided at its end to insert into the outlet, and an outlet sealing ring is installed between the side surface of the shoulder and the outlet; while the end cover is movably fastened to the third channel, it presses the spring, and the spring supports the first bearing to be tightly attached to the shoulder and the bearing block.

[0013] Furthermore, an automatic 0°-180° swinging water nozzle for cooling aluminum alloy casting rods of the present utility model further includes a second bearing, and a second bearing is further sleeved on the guiding member, and the second bearing is located between the spring and the end cover.

[0014] Furthermore, an automatic 0°-180° swinging water nozzle for cooling aluminum alloy casting rods of the present utility model further includes a second sealing ring, the end cover is provided with the second sealing ring, and the end cover and the guiding member are rotationally sealed through the second sealing ring.

[0015] Furthermore, an automatic power 0°-180° swing water nozzle for cooling aluminum alloy casting rods of the present utility model further includes a pin shaft. A plurality of adjustment holes are radially spaced on the impeller follower turntable; one end of the pin shaft is connected to the first connecting rod, and the other end passes through an adjustment hole on the impeller follower turntable.

[0016] The present utility model has significant progress compared with the prior art:

[0017] The present utility model can generate automatic power driven by the water flow in the shell, and use the generated automatic power to drive the nozzle to swing by 0°-180°. That is, while the water flows into the driving chamber through the first channel, it drives the rotating part located in the driving chamber to rotate, and the rotating part drives the impeller follower turntable to rotate, realizing the generation of automatic power; and the impeller follower turntable drives the first connecting rod, the second connecting rod, and the third connecting rod to swing, and the third connecting rod drives the guiding part to rotate, and the nozzle on the guiding part follows to rotate. Moreover, the impeller follower turntable rotates circumferentially, and the impeller follower turntable drives the first connecting rod, the second connecting rod, and the third connecting rod to swing back and forth, and the third connecting rod drives the guiding part to rotate back and forth, and the nozzle on the guiding part follows to perform a fan-shaped back-and-forth rotation, and the back-and-forth rotation angle is 0°-180°, which can achieve complete coverage spraying of the aluminum alloy rod, and the cooling is uniform, making the homogenization temperature gradient of the aluminum alloy rod more stable and uniform. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the specific embodiments of the present utility model or the technical solutions in the prior art, the following will briefly introduce the drawings required for the description of the specific embodiments or the prior art. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to scale.

[0019] Figure 1 It is a schematic structural diagram of the automatic power 0°-180° swing water nozzle for cooling aluminum alloy casting rods of the present utility model;

[0020] Figure 2 It is a schematic structural diagram of the shell in the present utility model;

[0021] Figure 3 It is a schematic structural diagram of the impeller cover in the present utility model;

[0022] Figure 4 It is a schematic installation structure diagram of the impeller follower turntable, the impeller shaft and the impeller in the present utility model;

[0023] Names and serial numbers of each component in the figure:

[0024] 1-housing, 101-first channel, 102-boss, 103-second channel, 104-driving chamber, 105-support, 106-third channel, 107-exit;

[0025] 2-limiting cage, 3-impeller shaft, 4-impeller cover, 41-pressure plate countersunk hole, 42-sealing ring countersunk hole, 43-shaft hole, 5-impeller with turntable, 51-adjusting hole, 6-pin shaft, 7-first connecting rod, 8-first bearing, 9-second connecting rod, 10-spring, 11-second bearing, 12-third connecting rod, 13-nozzle, 14-first sealing ring, 15-pressure plate, 16-end cover, 161-second sealing ring, 17-guide, 171-shoulder, 18-impeller. DETAILED DESCRIPTION

[0026] In order to enable those skilled in the art to better understand the technical solution in the present application, the technical solution of the present utility model will be clearly and completely described below in conjunction with the drawings and embodiments. Obviously, the described embodiments are only part of the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work should fall within the scope of protection of the present application.

[0027] Embodiment 1:

[0028] like Figures 1-4 As shown, this embodiment is an automatic 0°~180° swinging water nozzle for cooling aluminum alloy casting rods, comprising a housing 1, a guide member 17, a rotating member, a third connecting rod 12, a first connecting rod 7 and a second connecting rod 9. The housing 1 is provided with a first channel 101, a driving chamber 104 and a second channel 103, the bottom of the driving chamber 104 is connected to the first channel 101, and the side is connected to the second channel 103; one end of the guide member 17 is sealed and rotatably connected to the second channel 103, and the other end is installed with a nozzle 13; the rotating member is installed in the driving chamber 104, one end of which extends out of the housing and is transmission-connected to the impeller with the turntable 5, and is sealed and rotatably connected to the housing 1; the third connecting rod 12 is installed on the guide member 17 near the nozzle 13; the first connecting rod 7 is hingedly connected to the impeller with the turntable 5; one end of the second connecting rod 9 is hingedly connected to the first connecting rod 7, and the other end is hingedly connected to the third connecting rod 12; the angle of the nozzle 13 swinging is 0°~180°.

[0029] like Figure 1 As shown, the direction of water flow is: entering from the first channel 101 of the shell 1, being transported to the driving chamber 104 through the first channel 101, and then being introduced into the second channel 103 from the driving chamber 104, and then being transported to the guide member 17 through the second channel 103, and being sprayed outward through the nozzle 13 installed on the guide member 17.

[0030] It should be noted that when water is pushed into the driving chamber 104 through the first channel 101, the rotating member located in the driving chamber 104 is driven to rotate. The rotated rotating member drives the impeller to rotate with the turntable 5, realizing the generation of automatic power, and no additional external driving force needs to be provided to the impeller with the turntable.

[0031] As Figure 1 shown, the guiding member 17 is vertically rotatably connected to the second channel 103.

[0032] The impeller with the turntable 5, the first connecting rod 7, the second connecting rod 9 and the third connecting rod 12 can form a hinge four-bar mechanism. Working mode: The impeller with the turntable 5 drives the first connecting rod 7 to swing, the first connecting rod 7 drives the second connecting rod 9 to swing, the second connecting rod 9 drives the third connecting rod 12 to swing, and the third connecting rod 12 drives the guiding member 17 to rotate. The guiding member 17 drives the nozzle 13 to swing. The nozzle is vertically installed on the guiding member 17, and the nozzle can achieve a swing of 0° to 180°.

[0033] As Figure 1 and 4 shown, a plurality of adjusting holes 51 are arranged at intervals along the radial direction on the impeller with the turntable 5; one end of the pin shaft 6 is connected to the first connecting rod 7, and the other end passes through an adjusting hole 51 on the impeller with the turntable 5.

[0034] The number of adjusting holes 51 arranged on the impeller with the turntable 5 can be 2, 3, 4, 5, 6 or 7, etc. It can be understood that if the hinge point between the impeller with the turntable and the first connecting rod is close to the center of the impeller with the turntable, the circumferential radius of the hinge point is small, and thus the swing angle range of the nozzle is relatively reduced. Therefore, when it is necessary to change the size of the fan-shaped reciprocating movement angle of the nozzle, the hinge point between the impeller with the turntable and the first connecting rod can be adjusted, that is, the corresponding adjusting hole on the impeller with the turntable can be selected according to the need.

[0035] One way to supply water is as follows: Use a pressurized water pump to convey pressurized water to the shell 1 to increase the water flow speed, which is beneficial to impacting the rotating member in the driving chamber to rotate.

[0036] It should be noted that the nozzle can achieve a swing of 0° to 180°, and 0° is the position angle when the nozzle is in the starting state. The swing range of the nozzle can be selected according to the need. For example, the swing angle can be 10°, 20°, 30°, 45°, 60°, 80°, 90°, 120°, 150° or 180°, etc.

[0037] In some alternative embodiments, a structure of the rotating member is given. As Figure 1 and 4 shown, the rotating member includes an impeller 18 and an impeller shaft 3. The impeller shaft 3 passes through the shell 1 and extends into the driving chamber 104 to be in transmission connection with the impeller 18.

[0038] It should be noted that the impeller shaft 3 is rotationally connected to the housing 1 in a sealed manner, which can prevent the water inside the housing from spraying out through the connection between the impeller shaft 3 and the housing 1.

[0039] Working mode of the rotating part:

[0040] The first channel 101 guides water into the driving chamber 104, and the water impacts the impeller 18. While the impeller 18 is impacted and rotates, it drives the impeller shaft 3 to rotate, realizing the generation of automatic power by using the water flowing in the housing to impact the impeller.

[0041] In some embodiments, a structure for the detachable impeller is given. For example, Figures 1-4 As shown, a limiting cage 2, a boss 102 and an impeller cover 4 are added. A boss 102 is provided at the connection between the driving chamber 104 and the first channel 101. The limiting cage 2 is installed on the boss 102, and the bottom is rotationally connected to the impeller shaft 3. The impeller shaft 3 passes through the impeller cover 4. The impeller cover 4 is movably buckled on the top of the driving chamber 104 and presses the limiting cage 2 to be fixed on the boss 102. The limiting cage 2 is respectively communicated with the first channel 101 and the second channel 103.

[0042] It should be noted that the limiting cage does not hinder the communication between the first channel and the driving chamber, and between the driving chamber and the second channel. One kind of communication structure of the limiting cage is that 2 or 4 through holes can be opened at the bottom of the limiting cage 2, etc., and side through holes communicated with the second channel are opened on the side.

[0043] The limiting cage 2 is used to support and install the impeller shaft. One end of the impeller shaft is rotationally connected to the limiting cage, and the other end is rotationally connected to the impeller cover. Under the combined support of the limiting cage and the impeller cover, the impeller shaft can rotate more stably, effectively preventing the impeller shaft from deflecting and rotating.

[0044] The boss 102 can provide a supporting effect for installing the limiting cage 2 in the driving chamber 104. The impeller cover 4 is buckled on the housing 1, which can limit and fix the limiting cage 2 in the driving chamber to prevent the limiting cage from moving.

[0045] One connection method between the impeller cover 4 and the housing 1 is a threaded connection. During operation, the impeller cover is tightened and fixed to the housing. During maintenance and inspection, the impeller cover and the housing are unscrewed and separated, and then the impeller shaft, the impeller and the limiting cage can be taken out of the housing. The sealing method between the impeller cover and the housing can be: a sealing gasket is installed inside the impeller cover. When the impeller cover is tightened and fixed to the housing, the impeller cover presses the sealing gasket to be fixed to the housing, realizing the sealed connection between the impeller cover and the housing. Or, the threaded end of the housing is wound with raw tape. When the impeller cover is tightened to the housing, the impeller cover and the housing are sealed through the raw tape. Of course, it is not limited to this, and other structures that can make the impeller cover and the housing achieve sealing can also be used.

[0046] In some embodiments, a sealed rotating connection structure between an impeller cover and an impeller shaft is provided, and a pressing plate 15 and a first sealing ring 14 are additionally installed. The impeller cover 4 is provided with a pressing plate counterbore 41 for installing the pressing plate 15. The bottom of the pressing plate counterbore 41 is provided with a sealing ring counterbore 42 for installing the first sealing ring 14. The bottom of the sealing ring counterbore 42 is provided with a shaft hole 43; the impeller shaft passes through the shaft hole 43, the sealing ring counterbore 42, the first sealing ring 14, the pressing plate counterbore 41, and the pressing plate 15; wherein, the pressing plate 15 presses the first sealing ring 14 and is fixedly installed in the sealing ring counterbore 42.

[0047] A fixing structure of the pressing plate and the housing, and multiple bolts are additionally installed. The pressing plate 15 and the housing 1 are fixedly connected by multiple bolts. The number of bolts can be 2, 4, or 6. Tighten the bolts to fix the pressing plate to the housing.

[0048] In some embodiments, a structure for supporting the rotation of a guiding and feeding member is provided, and a bearing block 105, a first bearing 8, a shoulder 171, a spring 10, a second bearing 11, and an end cover 16 are additionally installed. A bearing block 105 is provided at the connection of the second channel 103 and the third channel 106, and the bearing block 105 is provided with an outlet 107. The guiding and feeding member 17 drives the sleeved first bearing 8, spring 10, second bearing 11, and end cover 16 to insert into the third channel 106, and extends to the shoulder 171 provided at its end to insert into the outlet 107. An outlet sealing ring is installed between the side surfaces of the shoulder 171 and the outlet 107. While the end cover 16 is movably fastened to the third channel 106, it presses the spring 10, and the spring 10 supports the first bearing 8 to be tightly attached to the shoulder 171 and the bearing block 105.

[0049] The second bearing 11 is located between the spring 10 and the end cover 16.

[0050] The second channel 103 is communicated with the guiding and feeding member 17 through the outlet 107.

[0051] A structure of the guiding and feeding member: the guiding and feeding member 17 can be made of a short pipe.

[0052] The first bearing 8 and the second bearing 11 support the guiding and feeding member 17 to rotate smoothly in the third channel 106, and can also prevent the guiding and feeding member from rotating offset.

[0053] The spring 10 supports the first bearing 8 to keep it tightly attached to the shoulder 171 and the bearing block 105, which can make the guiding and feeding member keep inserted into the outlet 107, facilitating the second channel to guide water flow to the guiding and feeding member.

[0054] To improve the tightness between the end cover and the guiding and feeding member, a second sealing ring 161 is additionally provided. As Figure 1As shown in the figure, the end cap 16 is provided with a second sealing ring 161. The end cap 16 and the conveying member 17 are sealingly and rotatably connected through the second sealing ring 161. The second sealing ring can prevent the conveying member from contacting the end cap during rotation, and can avoid rotational wear.

[0055] According to the above embodiment, the working mode of the present utility model is as follows:

[0056] The water flow pressed by the conveyor belt in the first channel 101 of the housing 1 enters the driving chamber 104 through the first channel 101. At the same time, the impeller 18 of the driving rotating member rotates, the impeller 18 drives the impeller shaft 3 to rotate, the impeller shaft 3 drives the first connecting rod 7 to swing, the first connecting rod 7 drives the second connecting rod 9 to swing, the second connecting rod 9 drives the third connecting rod 12 to swing, the third connecting rod 12 drives the conveying member 17 to swing, and the conveying member 17 drives the nozzle 13 to swing. The water flow enters the second channel 103 through the driving chamber 104, and the second channel 103 guides the water flow into the conveying member 17, and the water in the conveying member 17 is sprayed outwards through the nozzle 13.

[0057] The impeller rotates in a circular motion with the turntable 5. Therefore, under the combined action of the first connecting rod 7, the second connecting rod 9 and the third connecting rod 12, the conveying member can realize a fan-shaped reciprocating rotation, and then drive the nozzle 13 thereon to perform a fan-shaped reciprocating rotation. The rotation angle range of the nozzle 13 is 0° to 180°. The impeller is provided with a plurality of adjustment holes 51 at a radial interval from the turntable. The impeller and the turntable are connected to the first connecting rod 7 through a pin shaft 6. Therefore, by replacing the first connecting rod and installing it in different adjustment holes 51 through the pin shaft 6, the distance between the hinge point between the first connecting rod and the impeller and the turntable relative to the center of the turntable 5 of the impeller is adjusted, thereby adjusting the circumferential radius of the hinge point. Furthermore, the rotation angle range of the conveying member 17 driven by the first connecting rod 7, the second connecting rod 9 and the third connecting rod 12 is adjusted.

[0058] Obviously, the above embodiments are only examples clearly described and not limitations on the implementation manners. For those of ordinary skill in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to enumerate all the implementation manners here. And the obvious changes or modifications derived therefrom are still within the protection scope of the present utility model.

Claims

1. An automatic 0° to 180° swinging water nozzle for cooling aluminum alloy casting rods, characterized in that: include A housing (1), the housing (1) being provided with a first channel (101), a drive chamber (104) and a second channel (103), the bottom of the drive chamber (104) being in communication with the first channel (101), and the side of the drive chamber (104) being in communication with the second channel (103); A guide member (17), one end of the guide member (17) being sealingly rotatably connected to the second channel (103), and the other end of the guide member (17) being provided with a nozzle (13); A rotating member, the rotating member being mounted in the driving chamber (104), one end of which extends out of the housing and is transmission-connected to the impeller with the rotating disk (5), and is sealingly and rotationally connected to the housing (1); a third connecting rod (12), the third connecting rod (12) being mounted on the guide member (17) close to the nozzle (13); A first connecting rod (7), the first connecting rod (7) being hingedly connected to the impeller and the rotating disk (5); and a second connecting rod (9), one end of the second connecting rod (9) being hingedly connected to the first connecting rod (7), and the other end of the second connecting rod (9) being hingedly connected to the third connecting rod (12); Wherein, the nozzle (13) swings at an angle of 0° to 180°.

2. The automatic 0° to 180° swing water nozzle for cooling aluminum alloy casting rods according to claim 1, characterized in that: The rotating member comprises an impeller (18) and an impeller shaft (3); the impeller shaft (3) passes through the housing (1) and extends into the drive chamber (104) to be transmission-connected with the impeller (18).

3. The automatic 0° to 180° swing water nozzle for cooling aluminum alloy casting rods according to claim 2, characterized in that: It also includes a limiting cage (2), a boss (102) and an impeller cover (4); A boss (102) is provided at the connection point between the driving chamber (104) and the first channel (101); The limiting cage (2) is mounted on the boss (102), and the bottom is rotatably connected to the impeller shaft (3), and the impeller shaft (3) is penetrated by an impeller cover (4); The impeller cover (4) is movably buckled onto the top of the drive chamber (104), and the limiting cage (2) is squeezed and fixed to the boss (102); Wherein, the limiting cage (2) is communicated with the first channel (101) and the second channel (103) respectively.

4. The automatic 0° to 180° swing water nozzle for cooling aluminum alloy casting rods according to claim 3, characterized in that: The impeller cover (4) is threadedly connected to the casing (1).

5. The automatic 0° to 180° swing water nozzle for cooling aluminum alloy cast rods according to claim 3, characterized in that: It also includes a pressing plate (15) and a first sealing ring (14); The impeller cover (4) is provided with a pressing plate countersunk hole (41) for mounting a pressing plate (15), a sealing ring countersunk hole (42) for mounting a first sealing ring (14) is provided at the bottom of the pressing plate countersunk hole (41), and an axial hole (43) is provided at the bottom of the sealing ring countersunk hole (42); The impeller shaft (3) is provided with a shaft hole (43), a sealing ring countersunk hole (42), a first sealing ring (14), a pressing plate countersunk hole (41), and a pressing plate (15); The pressing plate (15) squeezes the first sealing ring (14) to be fixedly installed in the sealing ring counterbore (42).

6. The automatic 0° to 180° swing water nozzle for cooling aluminum alloy casting rods according to claim 5, characterized in that: It also includes a plurality of bolts, and the pressure plate (15) and the housing (1) are fixedly connected via the plurality of bolts.

7. The automatic 0° to 180° swing water nozzle for cooling aluminum alloy cast rods according to any one of claims 1 to 6, characterized in that: It also includes a support (105), a first bearing (8), a shoulder (171), a spring (10) and an end cover (16); A support platform (105) is provided at the connection between the second channel (103) and the third channel (106), and the support platform (105) is provided with an outlet (107); The guide member (17) drives the first bearing (8), the spring (10) and the end cover (16) sleeved thereon to be inserted into the third passage (106), and extends to a shoulder (171) provided at the end thereof to be inserted into the outlet (107), and an outlet sealing ring is installed between the shoulder (171) and the side surface of the outlet (107); The end cover (16) is movably fastened to the third channel (106) and squeezes the spring (10), so that the spring (10) supports the first bearing (8) tightly against the shoulder (171) and the support platform (105).

8. The automatic 0° to 180° swing water nozzle for cooling aluminum alloy casting rods according to claim 7, characterized in that: It also includes a second bearing (11), the guide member (17) is also sleeved with the second bearing (11), and the second bearing (11) is located between the spring (10) and the end cover (16).

9. The automatic 0° to 180° swing water nozzle for cooling aluminum alloy casting rods according to claim 7, characterized in that: It also comprises a second sealing ring (161), the end cover (16) is provided with the second sealing ring (161), and the end cover (16) is sealingly rotatably connected to the guide member (17) via the second sealing ring (161).

10. The automatic 0° to 180° swing water nozzle for cooling aluminum alloy casting rods according to claim 1, characterized in that: It also comprises a pin shaft (6), and a plurality of adjustment holes (51) are arranged at intervals along the radial direction on the impeller rotating disk (5); one end of the pin shaft (6) is connected to the first connecting rod (7), and the other end is penetrated by an adjustment hole (51) on the impeller rotating disk (5).

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