CN201209730Y - High pressure resistant tensioning jack rotary joint - Google Patents
High pressure resistant tensioning jack rotary joint Download PDFInfo
- Publication number
- CN201209730Y CN201209730Y CNU2008200602415U CN200820060241U CN201209730Y CN 201209730 Y CN201209730 Y CN 201209730Y CN U2008200602415 U CNU2008200602415 U CN U2008200602415U CN 200820060241 U CN200820060241 U CN 200820060241U CN 201209730 Y CN201209730 Y CN 201209730Y
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- Prior art keywords
- joint
- channel
- connector body
- connector
- high pressure
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- Expired - Lifetime
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- 238000007789 sealing Methods 0.000 claims description 16
- 230000008901 benefit Effects 0.000 abstract description 4
- 239000003921 oil Substances 0.000 description 10
- 238000000034 method Methods 0.000 description 5
- 230000008569 process Effects 0.000 description 4
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 230000008878 coupling Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000000446 fuel Substances 0.000 description 2
- 239000010720 hydraulic oil Substances 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
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Abstract
The utility model relates to a high pressure resistant hydraulic elongator rotary joint, which comprises a quick joint and a joint body assembly. The joint body assembly is composed of a joint body, a straight-through joint, a joint body nut, an O-shaped seal ring and a retainer ring. One end of the joint body is provided with a first channel along the central axis. The first channel communicates with a second channel vertical to the central axis. One end of the joint body is provided with the joint body nut. The joint body nut clamps and encloses the straight-through joint in the first channel. The straight-through joint can rotate freely in the first channel. The end of the straight-through joint extending into the first channel is enclosed with the O-shaped seal ring and the retainer ring. Internal thread is arranged in the second channel, which is matched with the external thread on the quick joint connected with a high pressure pipe. The high pressure resistant hydraulic elongator rotary joint saves the upper space of a hydraulic elongator so that the hydraulic elongator can be used in smaller space, thus enlarging the application scope of the hydraulic elongator. In addition, the high pressure resistant hydraulic elongator rotary joint has the advantages of resisting high pressure and rotating freely.
Description
Technical Field
The utility model relates to a hydraulic stretching ware, in particular to rotary joint on hydraulic stretching ware utilizes this to connect that can be convenient to carry out 360 degrees rotations to hydraulic stretching ware's high pressure fuel pipe, can save hydraulic stretching ware's occupation space, can avoid the barrier to make hydraulic stretching ware ability normal use. The method has the characteristics that: convenient, quick and practical.
Background
In the process of assembling and disassembling a large low-speed diesel engine, a hydraulic stretcher is one of indispensable tools. The hydraulic stretcher is used for the pump tightness and the pump looseness of the footing bolts on the large-scale equipment, the pump tightness and the pump looseness of the through bolts, and the pump tightness and the pump looseness of the main bearing bolts, the connecting rod big and small head bolts, the cylinder cover double-screw bolts and the like. In order to realize the hydraulic function of the hydraulic stretcher, a hydraulic stretcher joint is required to be connected with a high-pressure oil pipe of a high-pressure pump. A conventional hydraulic tensioner joint is mounted vertically on the upper plane of the hydraulic tensioner as shown in fig. 1. Because the rigidity of the high-pressure oil pipe is higher, enough space is required above the hydraulic stretcher for installing the high-pressure oil pipe. However, in production practice, there is not enough room to accommodate the bent high pressure tubing for some applications, particularly low speed diesel engines. Therefore, the traditional hydraulic stretcher cannot be used in a narrow space relative to the quick joint, so that the disassembly process is slow, and the working efficiency is further influenced.
The conventional hydraulic stretcher joint has the defects in the use process, as shown in fig. 1, the hydraulic stretcher in the drawing comprises a hydraulic stretcher body 9 and a hydraulic stretcher quick joint 2, the hydraulic stretcher quick joint 2 is vertically arranged on the upper surface of the hydraulic stretcher body 9, and the high-pressure oil pipe is difficult to bend due to high rigidity and needs enough space above the hydraulic stretcher after being arranged to be arranged.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome the defect that the tradition connects, provide a rotatable hydraulic stretcher high pressure joint. The high-pressure joint can realize the function of a common high-pressure joint and bear large pressure, and has the advantage of high pressure resistance compared with a common rotatable joint. Compared with the common high-pressure joint, the high-pressure joint has the advantage of being capable of rotating in the direction.
The technical scheme of the utility model as follows:
a high pressure resistant hydraulic stretcher rotary joint comprises a quick joint and is characterized by also comprising a joint body assembly, wherein the joint body assembly is formed by combining a joint body, a straight joint, a joint body nut, an O-shaped sealing ring and a check ring;
the connector body is cylindrical, a first channel is formed along the central axis from one end of the connector body, the first channel extends to the other end of the connector body but is not communicated, a second channel vertical to the central axis of the connector body is formed on the side wall of the connector body, and the second channel is communicated with the first channel;
the hydraulic tensioner comprises a nut, a first channel, a joint body, a first channel, a second channel, a third channel, a fourth channel, a fifth channel, a sixth channel, a fifth;
an O-shaped sealing ring and a check ring are sleeved at one end extending into the first channel, the edges of the outer circles of the O-shaped sealing ring and the check ring are tightly attached to the inner wall of the first channel, the outer side of the check ring is attached to an annular step on the straight joint, and the inner side of the check ring is tightly attached to the O-shaped sealing ring;
and an internal thread is arranged in the second channel, the internal thread is matched with an external thread on a quick joint connected with a high-pressure oil pipe, and the external thread of the quick joint is the same as the external thread on the straight joint.
As an optimized design of the above solution, a gasket is further provided in the second channel. The gasket is positioned at the bottom of the second channel and is padded at the top end of the quick joint to play a role in preventing leakage.
Through the structural introduction above, it is not difficult to discover that the utility model has the following advantages:
first, compare with traditional hydraulic stretcher joint, the utility model discloses saved hydraulic stretcher's upper portion space, made hydraulic stretcher also can use under littleer space to hydraulic stretcher's application range has been enlarged. The test example shows that the joint can save the upper space by about 200 mm.
Secondly, the quick connector can be directly connected with the shaft to realize 360-degree rotation, so that obstacles can be effectively avoided, and the high-pressure oil pipe can be easily connected to the quick connector.
Third, compare with the ordinary joint among the prior art, this utility model's characteristics are high pressure resistant, and test pressure can reach 200Mpa, and operating pressure can reach 150Mpa, can satisfy hydraulic stretcher's pressure requirement completely.
Fourth, the external thread on the quick connector and the external thread on the through connector in the connector body assembly are the same, so that the quick connector can be directly connected with the hydraulic stretcher, the effect of the hydraulic stretcher is the same as that of the traditional connector, and a more choice is provided for stretching work.
Drawings
Fig. 1 is a schematic view of a prior art hydraulic tensioner joint mounted on a hydraulic tensioner.
Fig. 2 is a schematic view of the installation of the high pressure resistant hydraulic stretcher rotary joint on the hydraulic stretcher of the present invention.
Fig. 3 is a schematic structural diagram of the high pressure resistant hydraulic stretcher rotary joint of the present invention.
Fig. 4 is a structural sectional view of the high pressure resistant hydraulic stretcher rotary joint of the present invention.
Wherein,
1-joint body assembly 2-quick joint 3-gasket 4-joint body
5-straight joint 6-joint body nut 7-O-shaped sealing ring 8-retainer ring
9-Hydraulic stretcher body
Detailed Description
The hydraulic tensioner rotary joint of the present invention is further described in detail with reference to the accompanying drawings and specific embodiments, but the scope of the present invention should not be limited thereby.
Please look at fig. 2, fig. 2 is a schematic view of the installation of the high pressure resistant hydraulic stretcher rotary joint on the hydraulic stretcher according to the present invention. It can be seen from the figure that the utility model discloses a high pressure resistant hydraulic stretcher rotary joint can use in concrete occasion, mainly is to change into on inserting the lateral wall at hydraulic stretcher with the direct joint among the prior art by original perpendicular insertion hydraulic stretcher. Meanwhile, the through joint can rotate in the joint body assembly to adapt to different working environments.
The concrete structure of high pressure resistant hydraulic stretcher rotary joint is as shown in fig. 3 and fig. 4, and fig. 3 is the utility model discloses a high pressure resistant hydraulic stretcher rotary joint's schematic structure diagram, and fig. 4 is the utility model discloses a high pressure resistant hydraulic stretcher rotary joint's structural section. As can be seen from the figure, the structure of the high pressure resistant hydraulic stretcher rotary joint of the utility model comprises a joint body assembly 1 besides the common quick joint 2 in the prior art, and the joint body assembly 1 is formed by combining a joint body 4, a straight joint 5, a joint body nut 6, an O-shaped sealing ring 7 and a retainer ring 8.
The joint body 4 of the joint body assembly 1 is cylindrical, a first channel is formed from one end of the joint body 4 along the central axis, the first channel extends to the other end of the joint body 4 but is not through, a second channel perpendicular to the central axis of the joint body 4 is formed on the side wall of the joint body 4, and the second channel is communicated with the first channel.
The outer edge of one end of the joint body 4 provided with the first channel is provided with an external thread which is matched with the joint body nut 6, and one end of the joint body nut 6 is provided with a through hole with the inner diameter smaller than that of the internal thread hole.
A through joint 5 is inserted into the first channel of the joint body 4, a raised hoop is arranged on the side wall of the through joint 5, the outer diameter of the hoop is larger than the inner diameter of the first channel but smaller than the inner diameter of the internal threaded hole of the joint body nut 6, the outer diameter of the hoop is also larger than the inner diameter of the through hole of the joint body nut 6 and is propped against the end part of the joint body 4, the joint body nut 6 is screwed on the joint body 4 to limit the hoop, the through joint 5 can freely rotate in the first channel, and the outer end of the through joint 5 is provided with external threads to be connected to a pipe input interface of a hydraulic stretcher. Through the arrangement of the structure, the through joint 5 can be inserted into the joint body 4, because the outer diameter of the hoop is larger than the inner diameter of the first channel, the end part of the through joint 5 extends into the interior, and meanwhile, because the outer diameter of the hoop is also larger than the inner diameter of the through hole in the joint body nut 6, the through joint 5 can be relatively fixed through the joint body nut 6, so that the through joint 5 cannot be separated from the joint body 4. And the hoop can move in the joint body nut 6, the joint body nut 6 forms a clamping sleeve, and the through joint 5 can rotate around the axis of the through joint.
The end cover that the through joint 5 stretched into in the first passageway is equipped with O type sealing washer 7 and retaining ring 8, and wherein the inner wall of first passageway is all hugged closely to the edge of O type sealing washer 7 and retaining ring 8 excircle, and the annular step on the through joint 5 is pasted in the outside of retaining ring 8, and inboard hugs closely O type sealing washer 7. The purpose of the collar 8 is primarily to position the through connection 5 against deflection in the connection body 4. Through the arrangement, the external high-pressure oil pipe flows through the second channel through the quick connector 2, then flows into the first channel, and finally flows into the hydraulic stretcher through the through connector 5, and due to the O-shaped sealing ring 7, high-pressure oil cannot leak from the first channel, and can generate pressure on the O-shaped sealing ring 7 and the check ring 8, so that the sealing performance of the hydraulic stretcher is better. It is difficult to pass through more highly compressed hydraulic oil more can say the utility model discloses a leak among the rotary joint, and then realize its high pressure resistant performance.
And an internal thread is arranged in the second channel of the joint body 4, the internal thread is matched with an external thread on the quick joint 2 connected with the high-pressure oil pipe, and the external thread of the quick joint 2 is the same as the external thread on the straight joint 5. In order to achieve a secure connection of the quick coupling 2 and the through-coupling 5, a washer 3 is provided at the end of the quick coupling 2 which projects into the second passage. The provision of the gasket 3 ensures that no hydraulic oil can escape from this region.
Among the above-mentioned structure, connect on hydraulic stretcher through joint 5, high pressure fuel pipe inserts on quick-operation joint 2. During the working process of the hydraulic stretcher, a high-pressure oil cavity is formed between the joint body 4 and the through joint 4, the joint body 4 is stressed by an upward force, and the force is balanced just due to the clamping sleeve effect of the joint nut.
It goes without saying that the structural arrangement and the shape arrangement of the high pressure resistant hydraulic tensioner rotary joint of the present invention are not limited to the shapes and structures listed in the embodiments. In summary, the scope of the present invention for protection of a high pressure resistant hydraulic tensioner rotary joint also includes other variations and alternatives that will be apparent to those skilled in the art.
Claims (2)
1. A high-pressure-resistant hydraulic stretcher rotary joint comprises a quick joint (2) and is characterized by further comprising a joint body assembly (1), wherein the joint body assembly (1) is formed by combining a joint body (4), a through joint (5), a joint body nut (6), an O-shaped sealing ring (7) and a check ring (8);
the connector body (4) is cylindrical, a first channel is formed from one end of the connector body (4) along the central axis, the first channel extends to the other end of the connector body (4) but is not communicated, a second channel vertical to the central axis of the connector body (4) is formed on the side wall of the connector body (4), and the second channel is communicated with the first channel;
the connector comprises a connector body (4) and a connector body nut (6), wherein a first channel is arranged at one end of the connector body (4), an external thread is arranged at the end of the connector body nut (6), a through hole with the inner diameter smaller than that of the internal threaded hole is formed in one end of the connector body nut (6), a through connector (5) is inserted into the first channel, a raised hoop is arranged on the side wall of the through connector (5), the outer diameter of the hoop is larger than that of the first channel but smaller than that of the internal threaded hole of the connector body nut (6), the outer diameter of the hoop is also larger than that of the through hole in the connector body nut (6) and is propped against the end part of the connector body (4), the connector body nut (6) is screwed tightly on the connector body (4) to limit the hoop, the through connector (5) can freely rotate in the first channel, and the outer end of the connector (5) is provided;
an O-shaped sealing ring (7) and a check ring (8) are sleeved at one end extending into the first channel, the edges of the outer circles of the O-shaped sealing ring (7) and the check ring (8) are tightly attached to the inner wall of the first channel, the outer side of the check ring (8) is attached to an annular step on the straight joint, and the inner side of the check ring is tightly attached to the O-shaped sealing ring (7);
and an internal thread is arranged in the second channel, the internal thread is matched with an external thread on a quick joint (2) connected with a high-pressure oil pipe, and the external thread of the quick joint (2) is the same as the external thread on the through joint (5).
2. High pressure resistant hydraulic tensioner rotary joint according to claim 1, characterized in that a washer (3) is further provided in the second channel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200602415U CN201209730Y (en) | 2008-06-25 | 2008-06-25 | High pressure resistant tensioning jack rotary joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200602415U CN201209730Y (en) | 2008-06-25 | 2008-06-25 | High pressure resistant tensioning jack rotary joint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201209730Y true CN201209730Y (en) | 2009-03-18 |
Family
ID=40480466
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200602415U Expired - Lifetime CN201209730Y (en) | 2008-06-25 | 2008-06-25 | High pressure resistant tensioning jack rotary joint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201209730Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102167079A (en) * | 2011-03-26 | 2011-08-31 | 长治液压有限公司 | Hydraulic steering pump oil outlet device capable of rotating in direction |
| CN102370562A (en) * | 2010-08-23 | 2012-03-14 | 迈柯唯医疗设备(苏州)有限公司 | Connecting device for oil circuit system of intelligent operating table |
-
2008
- 2008-06-25 CN CNU2008200602415U patent/CN201209730Y/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102370562A (en) * | 2010-08-23 | 2012-03-14 | 迈柯唯医疗设备(苏州)有限公司 | Connecting device for oil circuit system of intelligent operating table |
| CN102167079A (en) * | 2011-03-26 | 2011-08-31 | 长治液压有限公司 | Hydraulic steering pump oil outlet device capable of rotating in direction |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20090318 |
|
| CX01 | Expiry of patent term |