CN109109289B - Rotary waterway - Google Patents
Rotary waterway Download PDFInfo
- Publication number
- CN109109289B CN109109289B CN201811184522.6A CN201811184522A CN109109289B CN 109109289 B CN109109289 B CN 109109289B CN 201811184522 A CN201811184522 A CN 201811184522A CN 109109289 B CN109109289 B CN 109109289B
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- Prior art keywords
- water inlet
- outlet
- water
- shaft section
- pore canal
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 262
- 239000000498 cooling water Substances 0.000 claims abstract description 60
- 239000011148 porous material Substances 0.000 claims abstract description 57
- 230000000149 penetrating effect Effects 0.000 claims abstract description 5
- 230000002093 peripheral effect Effects 0.000 claims abstract description 4
- 238000001816 cooling Methods 0.000 claims description 11
- 238000007789 sealing Methods 0.000 claims description 8
- 239000007788 liquid Substances 0.000 claims description 6
- 230000005540 biological transmission Effects 0.000 claims description 3
- 238000001746 injection moulding Methods 0.000 description 7
- 238000009434 installation Methods 0.000 description 3
- 238000005299 abrasion Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/72—Heating or cooling
- B29C45/73—Heating or cooling of the mould
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Mounting Of Bearings Or Others (AREA)
Abstract
The invention discloses a rotary waterway, which comprises a spline shaft capable of driving a die to rotate, wherein the spline shaft is integrally formed with a front shaft section, a middle shaft section and a rear shaft section; spline teeth are processed on the outer peripheral surface of the middle shaft section; the rear shaft section is sleeved with a water inlet and outlet housing assembly capable of freely rotating relative to the spline shaft, and the water inlet and outlet housing assembly consists of a bearing cover provided with a first deep groove ball bearing, a flange provided with a second deep groove ball bearing and a plurality of water inlet and outlet housings positioned between the bearing cover and the flange; each water inlet and outlet shell is provided with a water inlet and outlet pore canal; a plurality of cooling water channels penetrating through the front end face of the front shaft section are processed in the spline shaft, the number of the cooling water channels is 2 times of the total number of water inlet and outlet pore channels, and each water inlet and outlet pore channel is communicated with two paths of cooling water channels; the rear shaft section of the spline shaft is provided with a connecting water tank for communicating the water inlet and outlet pore canal and two corresponding cooling water channels, and the connecting water tank is an annular channel extending along the whole circumferential direction of the rear shaft section.
Description
Technical Field
The invention belongs to injection molding equipment parts, in particular to a rotary waterway which is applied to a plastic machine and can convey water into a mold for cooling.
Background
In the prior art, under the condition that a double-color rotary table injection molding machine or a rotary shaft injection molding machine rotates, the water paths are connected in a connecting mode through water pipes so as to input cooling water to a mold. In order to ensure continuous supply of cooling water and prevent the water pipe from rotating together with the injection molding machine, the water pipe is generally installed in a 180-degree reciprocating rotation mode. However, the reciprocating rotation mode can lead to continuous reciprocating motion of the water pipe, so that the water pipe is bent in a reciprocating manner, the service life of the water pipe is reduced, and the water pipe is inconvenient to replace and maintain.
Disclosure of Invention
The invention aims to solve the technical problems of the prior art, and provides a rotary waterway which is simple in design, convenient to maintain and capable of guaranteeing the position of a water supply pipeline to be fixed under the condition that an injection molding machine rotates.
The technical scheme adopted for solving the technical problems is as follows:
the rotary waterway comprises a spline shaft which can drive the die to rotate under the drive of a motor, wherein the spline shaft is integrally formed with a front shaft section, a middle shaft section and a rear shaft section from front to back; spline teeth matched with the power transmission of the spline sleeve of the die are axially machined on the outer peripheral surface of the middle shaft section; the rear shaft section is sleeved with a water inlet and outlet housing assembly capable of freely rotating relative to the spline shaft, and the water inlet and outlet housing assembly consists of a bearing cover with a first deep groove ball bearing at the front end, a flange with a second deep groove ball bearing at the rear end and a plurality of water inlet and outlet housings which are positioned between the bearing cover and the flange and are in liquid-tight fit with each other; each water inlet and outlet shell is provided with a radial water inlet and outlet pore canal which can be connected with an external water pipe; the spline shaft is internally provided with a plurality of cooling water channels which are communicated with the front end surface of the front shaft section and are used for providing circulating cooling water for the inside of the die, the number of the cooling water channels is 2 times of the total number of water inlet and outlet pore channels, and each water inlet and outlet pore channel is communicated with two paths of cooling water channels; the back shaft section of the spline shaft is provided with a water inlet and outlet channel corresponding to each water inlet and outlet shell, a connecting water channel used for communicating the water inlet and outlet channel and two corresponding cooling water channels is processed, and the connecting water channel is an annular channel extending along the whole circumference of the back shaft section.
In order to optimize the technical scheme, the measures adopted further comprise:
six water inlet and outlet shells are arranged between the bearing cover and the flange; the water inlet and outlet pore canal of three water inlet and outlet shells in the six water inlet and outlet shells is used for connecting an external water inlet pipe, and the water inlet and outlet pore canal of the other three water inlet and outlet shells in the six water inlet and outlet shells is used for connecting an external water return pipe; the water inlet and outlet shell connected with the external water inlet pipe and the water inlet and outlet shell connected with the external water return pipe are alternately arranged between the bearing cover and the flange; twelve paths of cooling waterways are processed in the spline shaft; the water inlet and outlet pore canal of each connecting water inlet pipe and the water inlet and outlet pore canal of the adjacent connecting water return pipe at the rear part are combined into a group of water inlet and outlet water passages positioned in the water inlet and outlet shell component; correspondingly, two paths of cooling water channels communicated with the water inlet and outlet pore canal of the connecting water inlet pipe and two paths of cooling water channels communicated with the water inlet and outlet pore canal of the connecting water return pipe are combined together to form two groups of water inlet and outlet passages positioned in the spline shaft; the six water inlet and outlet channels and the twelve cooling waterways form a rotary waterway structure of three-to-six water inlet and return channels.
The center of the bearing cover is axially penetrated and processed with a shaft hole which is sleeved and assembled with the gap of the rear shaft section, and a bearing mounting concave cavity for mounting the first deep groove ball bearing; the bearing mounting concave cavity is coaxial with the shaft hole; the first deep groove ball bearing is fixedly embedded in the bearing mounting concave cavity of the bearing cover, and the inner circumferential surface of the first deep groove ball bearing is tightly matched with the outer circumferential surface of the rear shaft section.
The flange is provided with a bearing mounting groove for mounting a second deep groove ball bearing, the second deep groove ball bearing is fixedly embedded in the bearing mounting groove, and the inner circumferential surface of the second deep groove ball bearing is tightly matched with the outer circumferential surface of the rear shaft section.
Six screw holes for threading screws are processed on the bearing cover, the six water inlet and outlet shells and the flange in equal radian; the bearing cover, the six water inlet and outlet shells and the flange are fixedly connected into a whole through the screw rod and the nut.
The cooling water channel comprises an axial cooling water channel extending backwards from the front end face of the front shaft section and a radial cooling water channel which is communicated with the axial cooling water channel and the connecting water channel.
The diameter of the rear shaft section is smaller than that of the middle shaft section, an annular limiting table is formed between the rear shaft section and the middle shaft section, and the front end face of the shaft hole of the bearing cover is matched with the annular limiting table in a positioning mode.
The water inlet and outlet shell is of a circular ring structure, a rotating shaft hole which is rotationally sleeved with the rear shaft section is processed in the center of the water inlet and outlet shell, and the water inlet and outlet pore canal radially penetrates through the rotating shaft hole from the outer circumferential surface of the water inlet and outlet shell; an O-shaped ring mounting groove is formed in the front annular surface of the water inlet and outlet shell, and an O-shaped ring for realizing liquid sealing of the front part of the water inlet and outlet shell is arranged in the O-shaped ring mounting groove; an annular sealing groove is processed at the rear part of the water inlet and outlet pore canal in the rotating shaft hole, and a rotary oil seal which is matched with the rear shaft section to realize the liquid seal at the rear part of the water inlet and outlet shell is arranged in the annular sealing groove.
Compared with the prior art, the spline shaft is provided with the water inlet and outlet housing assembly which can freely rotate relative to the spline shaft, and the water inlet and outlet housing assembly consists of the first deep groove ball bearing, the bearing cover, the second deep groove ball bearing, the flange and a plurality of water inlet and outlet housings; the water inlet and outlet shell is provided with a radial water inlet and outlet pore canal, the spline shaft is provided with a cooling water channel for conveying cooling water to the mold and a connecting water channel for communicating the cooling water channel, and the connecting water channel is communicated with the water inlet and outlet pore canal, so that the cooling water can enter the mold through the water inlet and outlet pore canal, the connecting water channel and the cooling water channel in the rotating process of the spline shaft is ensured. The outer end of the water inlet and outlet pore canal can be used for connecting an external water pipe, and the water inlet and outlet shell can rotate relative to the spline shaft, so that the water inlet and outlet shell can keep a fixed position to be motionless when the spline shaft rotates, thereby avoiding the rotation of the water pipe connected to the water inlet and outlet shell.
The invention has simple design, little abrasion, long-term maintenance of excellent working performance, simple disassembly after abrasion and convenient maintenance.
Drawings
FIG. 1 is a schematic perspective view of the present invention;
FIG. 2 is a schematic view of the semi-sectional structure of the present invention;
FIG. 3 is a schematic perspective view of a spline shaft of the present invention;
FIG. 4 is a cross-sectional view of the water inlet and outlet housing of the present invention;
FIG. 5 is a left side view of FIG. 2;
FIG. 6 is a right side view of FIG. 2;
fig. 7 is a sectional view of the bearing cap of the present invention.
Detailed Description
Embodiments of the present invention are described in further detail below with reference to the accompanying drawings.
Fig. 1 to 7 are schematic diagrams of structures and circuits according to embodiments of the present invention.
Wherein the reference numerals are as follows: the spline shaft 1, the axial cooling water channel 1a, the radial cooling water channel 1b, the front shaft section 11, the middle shaft section 12, the spline teeth 12a, the rear shaft section 13, the connecting water channel 13a, the first deep groove ball bearing 2, the bearing cover 3, the shaft hole 3a, the bearing mounting concave cavity 3b, the second deep groove ball bearing 4, the flange 5, the water inlet and outlet housing 6, the water inlet and outlet channel 6a, the rotating shaft hole 61, the O-shaped ring mounting groove 62, the annular sealing groove 63 and the screw 7.
Fig. 1 to 7 show a rotary waterway applied to a dual-color rotary table injection molding machine or a rotary shaft injection molding machine according to the present invention. The mold comprises a spline shaft 1 for driving the mold to rotate, wherein the spline shaft 1 can be connected with a motor and is driven by the motor to rotate. The spline shaft 1 is a shaft extending in a straight line, and the spline shaft 1 is integrally formed with a front shaft section 11, a middle shaft section 12 and a rear shaft section 13 from front to back. The diameter of the front axle section 11 is smaller than the diameter of the middle axle section 12 and larger than the diameter of the rear axle section 13. The front shaft section 11 can extend into the mold to facilitate interfacing with the cooling circulation water channels in the mold. Spline teeth 12a are axially machined on the outer peripheral surface of the middle shaft section 12, and the spline teeth 12a can be meshed with a spline housing of a die so as to complete transmission of rotary force. The rear shaft section 13 is sleeved with a water inlet and outlet housing assembly which can freely rotate relative to the spline shaft 1, so that the spline shaft 1 can be relatively fixed when rotating relative to the surrounding environment.
The water inlet and outlet shell assembly consists of a bearing cover 3 with a first deep groove ball bearing 2 at the front end, a flange 5 with a second deep groove ball bearing 4 at the rear end and a plurality of water inlet and outlet shells 6 which are positioned between the bearing cover 3 and the flange 5 and are in liquid-tight fit with each other. The first deep groove ball bearing 2 and the second deep groove ball bearing 4 ensure the free rotation of the whole water inlet and outlet housing assembly. In the invention, each water inlet and outlet shell 6 is provided with a radial water inlet and outlet pore canal 6a, and the water inlet and outlet pore canal 6a can be connected with an external water pipe for providing cooling water.
The spline shaft 1 is provided with a plurality of cooling water channels penetrating through the front end face of the front shaft section 11, and the cooling water channels are used for providing circulating cooling water for the inside of the die and ensuring that the cooling water completes cooling circulation in the die. The water inlet and outlet shells 6 of the invention are arranged in pairs so as to connect a water inlet and outlet pipe. The number of the cooling water channels processed in the spline shaft 1 is 2 times of the total number of the water inlet and outlet channels 6a. I.e. if there are two water inlet and outlet openings 6a in the water inlet and outlet housing assembly, the cooling water channel is four-way, i.e. if there are three water inlet and outlet openings 6a in the water inlet and outlet housing assembly, the cooling water channel is six-way, and so on.
Each water inlet and outlet pore canal 6a of the invention is communicated with two paths of cooling water channels, namely, each two paths of cooling water channels are communicated with one water inlet and outlet pore canal 6a. In order to ensure that the water inlet and outlet pore canal 6a and the cooling water canal can be always kept mutually communicated in the rotating process of the spline shaft 1, a connecting water groove 13a for communicating the water inlet and outlet pore canal 6a and the corresponding two cooling water canals is processed on the rear shaft section 13 of the spline shaft 1 corresponding to the water inlet and outlet pore canal 6a of each water inlet and outlet shell 6, and the connecting water groove 13a is an inwards concave annular groove extending along the whole circumferential direction of the rear shaft section 13.
In the embodiment, six water inlet and outlet shells 6 are arranged between the bearing cover 3 and the flange 5; the water inlet and outlet pore canal 6a of three water inlet and outlet shells 6 in the six water inlet and outlet shells 6 are used for being connected with an external water inlet pipe, and the water inlet and outlet pore canal 6a of the other three water inlet and outlet shells 6 in the six water inlet and outlet shells 6 are used for being connected with an external water return pipe. And the water inlet and outlet housing 6 connected with the external water inlet pipe and the water inlet and outlet housing 6 connected with the external water return pipe are alternately arranged between the bearing cover 3 and the flange 5. Namely, the six water inlet and outlet shells 6 are arranged in a mode that a first water inlet and outlet shell 6 is connected with a water inlet pipe from front to back, and a second water inlet and outlet shell 6 is connected with a water return pipe; the third water inlet and outlet shell 6 is connected with a water inlet pipe, and the fourth water inlet and outlet shell 6 is connected with a water return pipe; the fifth water inlet and outlet housing 6 is connected with a water inlet pipe, and the sixth water inlet and outlet housing 6 is connected with a water return pipe.
Twelve paths of cooling water paths are processed in the spline shaft 1; each water inlet and outlet pore canal 6a connected with the water inlet pipe and the water inlet and outlet pore canal 6a connected with the water return pipe adjacently at the rear part are combined into a group of water inlet and outlet water passages positioned in the water inlet and outlet shell component; the water inlet and outlet pore passages 6a of the six water inlet and outlet shells 6 form three groups of water inlet and outlet passages positioned in the water inlet and outlet shell components, namely the water inlet and outlet pore passage 6a of the first water inlet and outlet shell 6 and the water inlet and outlet pore passage 6a of the second water inlet and outlet shell 6 form a first group of water inlet and outlet passages; the water inlet and outlet pore canal 6a of the third water inlet and outlet housing 6 and the water inlet and outlet pore canal 6a of the fourth water inlet and outlet housing 6 form a second group of water inlet and outlet water passages; the water inlet and outlet passage 6a of the fifth water inlet and outlet housing 6 and the water inlet and outlet passage 6a of the sixth water inlet and outlet housing 6 constitute a third group of water inlet and outlet passages.
Correspondingly, two paths of cooling water channels communicated with the water inlet and outlet pore canal 6a connected with the water inlet pipe and two paths of cooling water channels communicated with the water inlet and outlet pore canal 6a connected with the water return pipe are combined together to form two groups of water inlet and return passages positioned in the spline shaft 1. The twelve cooling waterways can form six groups of water inlet and return passages together, namely, two cooling waterways communicated with the water inlet and outlet pore canal 6a of the first water inlet and outlet shell 6 and two cooling waterways communicated with the water inlet and outlet pore canal 6a of the second water inlet and outlet shell 6 form a first group of water inlet and return passages and a second group of water inlet and return passages positioned in the spline shaft 1. The two paths of cooling water paths communicated with the water inlet and outlet pore canal 6a of the third water inlet and outlet shell 6 and the two paths of cooling water paths communicated with the water inlet and outlet pore canal 6a of the fourth water inlet and outlet shell 6 form a third group of water inlet and return passages and a fourth group of water inlet and return passages positioned in the spline shaft 1. The two paths of cooling water paths communicated with the water inlet and outlet pore canal 6a of the fifth water inlet and outlet shell 6 and the two paths of cooling water paths communicated with the water inlet and outlet pore canal 6a of the sixth water inlet and outlet shell 6 form a fifth group of water inlet and outlet passages and a sixth group of water inlet and outlet passages positioned in the spline shaft 1. The six water inlet and outlet channels 6a and the twelve cooling waterways form a rotary waterway structure of converting three groups into six groups of water inlet and return passages.
In the embodiment, as shown in fig. 7, a shaft hole 3a which is in clearance fit with the rear shaft section 13 and a bearing mounting concave cavity 3b for mounting the first deep groove ball bearing 2 are machined through the center of the bearing cover 3 in the axial direction; the bearing installation concave cavity 3b is coaxial with the shaft hole 3 a; the bearing mounting recess 3b can be understood as being formed by reaming the shaft hole 3 a. The first deep groove ball bearing 2 is fixedly fitted in the bearing mounting recess 3b of the bearing cap 3, and the inner circumferential surface of the first deep groove ball bearing 2 is tightly fitted with the outer circumferential surface of the rear shaft section 13. The outer circumferential surface of the first deep groove ball bearing 2 is tightly fitted with the inner circumferential wall of the bearing mounting recess 3 b.
In the embodiment, the flange 5 of the present invention is machined with a bearing mounting groove for mounting the second deep groove ball bearing 4, the second deep groove ball bearing 4 is fixedly embedded in the bearing mounting groove, and the inner circumferential surface of the second deep groove ball bearing 4 is tightly fitted with the outer circumferential surface of the rear shaft section 13, and the outer circumferential surface of the second deep groove ball bearing 4 is tightly fitted with the inner circumferential wall of the bearing mounting groove. The flange 5 is also provided with a shaft hole which is sleeved and matched with the rear shaft section 13.
In the embodiment, in order to make the water inlet and outlet housing components combined into a whole, six screw holes for penetrating the screw 7 are processed on the bearing cover 3, the six water inlet and outlet housings 6 and the flange 5 in equal radian; the bearing cover 3, the six water inlet and outlet shells 6 and the flange 5 are fixedly connected into a whole through a screw rod 7 and a nut. The water inlet and outlet housing components are firmly connected together through six screws 7 and nuts.
In the embodiment, the cooling water passage of the present invention includes an axial cooling water passage 1a extending rearward from the front end surface of the front shaft section 11 and a radial cooling water passage 1b communicating the axial cooling water passage 1a with the connecting water passage 13 a. The radial cooling water channel 1b is formed in the connecting water channel 13a by radial drilling.
In the embodiment, since the diameter of the rear shaft section 13 is smaller than that of the middle shaft section 12, an annular limiting table is formed between the connection of the rear shaft section 13 and the middle shaft section 12, and the front end surface of the shaft hole 3a of the bearing cover 3 is matched with the annular limiting table in a positioning manner. The annular limiting table can limit the installation position of the water inlet and outlet shell assembly, and the secondary surface prevents the water inlet and outlet shell assembly from axially moving after installation.
In the embodiment, the water inlet and outlet housing 6 is in a circular ring structure, a rotating shaft hole 61 rotationally sleeved with the rear shaft section 13 is processed in the center of the water inlet and outlet housing 6, and the water inlet and outlet pore canal 6a radially penetrates to the rotating shaft hole 61 from the outer circumferential surface of the water inlet and outlet housing 6; an O-shaped ring mounting groove 62 is formed in the front annular surface of the water inlet and outlet housing 6, and an O-shaped ring for realizing liquid sealing of the front part of the water inlet and outlet housing 6 is mounted in the O-shaped ring mounting groove 62; an annular seal groove 63 is processed at the rear part of the water inlet and outlet pore canal 6a in the rotating shaft hole 61, and a rotating oil seal which is matched with the rear shaft section 13 to realize the liquid seal at the rear part of the water inlet and outlet housing 6 is arranged in the annular seal groove 63.
The water inlet and outlet housing 6 is provided with the O-shaped ring and the rotary oil seal, and the O-shaped ring and the rotary oil seal can ensure that water cannot leak after the water inlet and outlet housing 6 is arranged on the rear shaft section 13.
The installation process of the rotary waterway comprises the following steps: the first deep groove ball bearing 2 is first mounted into the bearing mounting recess 3b of the bearing cap 3, and then the bearing cap 3 mounted with the first deep groove ball bearing 2 is mounted onto the spline shaft 1. After the rotary oil seal and the O-shaped ring are arranged on the water inlet and outlet housing 6, the rotary oil seal and the O-shaped ring are arranged on the spline shaft 1, and the six water inlet and outlet housings are arranged in the same way. Finally, the second deep groove ball bearing 4 is arranged on the flange 5 and then arranged on the spline shaft 1, and finally the flange 5, the six water inlet and outlet shells 6 and the bearing cover 3 are connected together through the screw rod 7, the screw rod hole and the nut.
The spline shaft 1 is a rotating mechanism, and the mold is driven to rotate by the motor, and cooling water is circulated and conveyed in the mold through an inlet and return water passage in the spline shaft 1 and an inlet and return water passage in the water inlet and outlet housing assembly.
The preferred embodiments of this invention have been described so far that various changes or modifications may be made by one of ordinary skill in the art without departing from the scope of this invention.
Claims (6)
1. The utility model provides a rotatory water route, includes spline shaft (1) that can drive the mould rotation under the drive of motor, characterized by: the spline shaft (1) is integrally formed with a front shaft section (11), a middle shaft section (12) and a rear shaft section (13) from front to back; spline teeth (12 a) matched with the power transmission of the spline sleeve of the die are axially machined on the outer peripheral surface of the middle shaft section (12); the rear shaft section (13) is sleeved with a water inlet and outlet housing assembly capable of freely rotating relative to the spline shaft (1), and the water inlet and outlet housing assembly consists of a bearing cover (3) with a first deep groove ball bearing (2) arranged at the front end, a flange (5) with a second deep groove ball bearing (4) arranged at the rear end and a plurality of water inlet and outlet housings (6) which are arranged between the bearing cover (3) and the flange (5) and are in liquid-tight fit with each other; each water inlet and outlet shell (6) is provided with a radial water inlet and outlet pore canal (6 a) which can be connected with an external water pipe; the spline shaft (1) is internally provided with a plurality of cooling water channels penetrating through the front end face of the front shaft section (11) and used for providing circulating cooling water for the inside of the die, the number of the cooling water channels is 2 times of the total number of the water inlet and outlet channels (6 a), and each water inlet and outlet channel (6 a) is communicated with two channels of cooling water channels; a water inlet and outlet pore canal (6 a) corresponding to each water inlet and outlet shell (6) on the rear shaft section (13) of the spline shaft (1) is provided with a connecting water groove (13 a) for communicating the water inlet and outlet pore canal (6 a) with two corresponding cooling water channels, and the connecting water groove (13 a) is an annular groove extending along the whole circumferential direction of the rear shaft section (13); the flange (5) is provided with a bearing mounting groove for mounting a second deep groove ball bearing (4), the second deep groove ball bearing (4) is fixedly embedded in the bearing mounting groove, and the inner circumferential surface of the second deep groove ball bearing (4) is tightly matched with the outer circumferential surface of the rear shaft section (13); six screw holes for penetrating the screw (7) are processed on the bearing cover (3), the six water inlet and outlet shells (6) and the flange (5) in equal radian; the bearing cover (3), the six water inlet and outlet shells (6) and the flange (5) are fixedly connected into a whole through the screw rod (7) and the nut.
2. A rotary waterway according to claim 1, wherein: six water inlet and outlet shells (6) are arranged between the bearing cover (3) and the flange (5); the water inlet and outlet pore canal (6 a) of three water inlet and outlet shells (6) in the six water inlet and outlet shells (6) are used for being connected with an external water inlet pipe, and the water inlet and outlet pore canal (6 a) of the other three water inlet and outlet shells (6) in the six water inlet and outlet shells (6) are used for being connected with an external water return pipe; the water inlet and outlet shell (6) connected with the external water inlet pipe and the water inlet and outlet shell (6) connected with the external water return pipe are alternately arranged between the bearing cover (3) and the flange (5); twelve paths of cooling waterways are processed in the spline shaft (1); each water inlet and outlet pore canal (6 a) connected with the water inlet pipe and the water outlet pore canal (6 a) connected with the water return pipe adjacently at the rear part of the water inlet and outlet pore canal are combined into a group of water inlet and outlet water passages positioned in the water inlet and outlet shell component; correspondingly, two paths of cooling water channels communicated with the water inlet and outlet pore canal (6 a) connected with the water inlet pipe and two paths of cooling water channels communicated with the water inlet and outlet pore canal (6 a) connected with the water return pipe are combined together to form two groups of water inlet and return passages positioned in the spline shaft (1); six water inlet and outlet channels (6 a) and twelve cooling waterways form a rotary waterway structure of three-to-six water inlet and return passages.
3. A rotary waterway according to claim 2, characterized in that: the center of the bearing cover (3) is axially penetrated and processed with a shaft hole (3 a) which is in clearance fit with the rear shaft section (13), and a bearing mounting concave cavity (3 b) for mounting the first deep groove ball bearing (2); the bearing mounting concave cavity (3 b) is coaxial with the shaft hole (3 a); the first deep groove ball bearing (2) is fixedly embedded in the bearing mounting concave cavity (3 b) of the bearing cover (3), and the inner circumferential surface of the first deep groove ball bearing (2) is tightly matched with the outer circumferential surface of the rear shaft section (13).
4. A rotary waterway according to claim 3, wherein: the cooling water channel comprises an axial cooling water channel (1 a) extending backwards from the front end surface of the front shaft section (11) and a radial cooling water channel (1 b) which is communicated with the axial cooling water channel (1 a) and the connecting water channel (13 a).
5. The rotary waterway of claim 4, wherein: the diameter of the rear shaft section (13) is smaller than that of the middle shaft section (12), an annular limiting table is formed between the rear shaft section (13) and the middle shaft section (12), and the front end face of the shaft hole (3 a) of the bearing cover (3) is matched with the annular limiting table in a positioning mode.
6. A rotary waterway according to claim 5, wherein: the water inlet and outlet shell (6) is of a circular ring structure, a rotating shaft hole (61) which is rotationally sleeved with the rear shaft section (13) is formed in the center of the water inlet and outlet shell (6), and the water inlet and outlet pore canal (6 a) radially penetrates through the rotating shaft hole (61) from the outer circumferential surface of the water inlet and outlet shell (6); an O-shaped ring mounting groove (62) is formed in the front annular surface of the water inlet and outlet housing (6), and an O-shaped ring for realizing liquid sealing of the front part of the water inlet and outlet housing (6) is mounted in the O-shaped ring mounting groove (62); an annular sealing groove (63) is processed at the rear part of the water inlet and outlet pore canal (6 a) of the rotating shaft hole (61), and a rotary oil seal which is matched with the rear shaft section (13) to realize the liquid seal at the rear part of the water inlet and outlet housing (6) is arranged in the annular sealing groove (63).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811184522.6A CN109109289B (en) | 2018-10-11 | 2018-10-11 | Rotary waterway |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811184522.6A CN109109289B (en) | 2018-10-11 | 2018-10-11 | Rotary waterway |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109109289A CN109109289A (en) | 2019-01-01 |
| CN109109289B true CN109109289B (en) | 2023-12-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811184522.6A Active CN109109289B (en) | 2018-10-11 | 2018-10-11 | Rotary waterway |
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| CN (1) | CN109109289B (en) |
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