KR100801250B1 - Endurance tester for turning joint seal - Google Patents

Abstract

The present invention relates to an apparatus for measuring and testing the durability of a rotating seal which is a main component for sealing a high-pressure rotating part including an excavator.

The present invention provides a cover fixed to the support frame, a housing having inlet and outlet grooves and grooves, a rotating shaft inherent in the housing, blocks provided on the upper and lower surfaces of the cover, and a temperature attached to the cover. A turning joint part composed of a sensor; One side is fixed to the first rotation block mounted to the motor fixed to the support plate and the other side is fixed to the circular protrusion mounted on the bearing holder and the drive unit consisting of a rotating shaft having a torque sensor; A transmission part comprising a universal joint fixed to a circular protrusion mounted on the bearing holder and a universal joint fixed to a rotating shaft of the turning joint, and an encoder mounted on a rotary shaft connected to the lower pulley; The hydraulic frame includes a manifold provided at one side of the support frame and having a screw hole, and a valve connected to a second pipe to an inlet provided at a block of an upper side of the turning joint part.

The present invention has the effect of preventing the vibration of the equipment caused by wear or leakage by the test data by measuring the durability.

Rotary Seal, Durability Tester, Turning Joint, Oil

Description

Endurance tester for turning joint seal for heterogeneous composite seals for high pressure turning joints

1 is a perspective view showing a heterogeneous composite seal durability tester for a high-pressure turning joint according to the present invention,

2 is a side cross-sectional view showing a heterogeneous composite seal durability tester for a high pressure turning joint according to the present invention;

3 is an exploded view showing a heterogeneous composite seal durability tester for a high pressure turning joint according to the present invention;

4 is a cross-sectional view showing a configuration of a turning joint part according to the present invention.

<Explanation of Signs of Major Parts of Drawings>

10: turning joint part 11: cover

12 housing 13 rotation axis

14 block 15 inlet groove

16: exhaust groove 17: temperature sensor

20: drive unit 21: motor

22: support plate 23: torque sensor

24: rotating shaft 30: transmission unit

31: bearing holder 32: upper pulley

33: universal joint 34: second rotation block

35: encoder 40: hydraulic part

41: manifold 42: valve

43: hydraulic motor 44: oil tank

The present invention relates to an apparatus for measuring and testing the durability of the sealing joint for the sealing joint and the sealing seal for sealing the high-pressure rotating part is a problem in the shaking and operation adjustment in the equipment when the airtight seal is not maintained.

In general, various moving parts are supplied with lubricating oils to reduce friction between moving parts. Rotating seals are used to prevent leakage of the lubricating oils while keeping them in place.
Rotating seals used for mechanical parts that rotate at high pressure and high speed are used in various kinds of seals, but in general, a synthetic rubber forming a seal lip in a metal reinforcement ring is integrated into one piece, and then a spring is inserted to give a proper tightening force to the lip. It is structured to put.
In addition, the heterogeneous composite seal used in the high pressure machine is fixed to the machine body by using the rigidity of the metal reinforcement ring, and the sealing with the rotating shaft forms a very thin fluid film under the relative motion between the seal tip and the shaft surface. It has a long lifespan and is made of flexible elastomer and designed to ensure stable sealing against the effects of vibration of the machine and pressure fluctuations of the sealing body so that the contact state between the lip tip and the shaft surface is stable. The seal lip and the rotating seal secured to the housing are fixed to the housing, and the assembly part which serves to prevent leakage of fluid or foreign substances from the contact surface between the outer circumferential surface of the rotating seal and the inner surface of the housing, It is composed of a spring that maintains the urgency force (tightening to the seal lip shaft) and prevents leakage Pray.

However, the various types of seals as described above do not know the exact durability and lifespan, so it was frequently reflected that the seals were replaced by judging by the noise or vibration of the machine during operation of the machine.
This is the reason for the failure of the machine, the life of the machine is short, and the maintenance of the machine is expensive, so the durability test device of the seal that can determine the exact durability and life of the seal has been required, but conventionally Since there is no tester that can confirm the durability, there is a problem that can only guess the life of the seal (seal).

In order to solve the above problems, the present invention is not only a heterogeneous composite seed, but also an object of testing the durability of any of the rotating seals to provide measurement data.

The configuration of the present invention for achieving the above object, the cover is fixed to a support frame fixed to one side of the upper surface to achieve the inflow and discharge of oil, and the inherent in the cover to make the inflow of oil A housing having a plurality of inflow grooves forming a condition for achieving a durability test and a plurality of grooves for discharging leakage oil discharged upon abnormality of the seal according to the durability test of the seal, and grooves on which a plurality of seals are installed; A rotating shaft inherent in the housing to form a condition for achieving a durability test of the seal, a block installed on the upper and lower surfaces of the cover to form oil inlet and outlet, and a temperature of the seal during the durability test of the seal attached to the cover. A turning joint part configured of a temperature sensor for detecting a change; One side is fixed to the first rotation block mounted to the motor fixed to the support plate, the other side is fixed to the second rotation block mounted to the bearing holder, the drive unit consisting of a rotating shaft having a torque sensor; One side is fixed to the second rotation block mounted on the bearing holder, the other side is connected to the universal joint fixed to the rotating shaft of the turning joint portion, the upper pulley and the upper pulley is fixed to the second rotation block by the belt A transmission part configured of an encoder mounted on a rotating shaft to which the lower pulley is rotated;
The manifold is provided on the side of the support frame, the oil is introduced to one side by the hydraulic motor and the first pipe, the plurality of screw holes are formed on the other side, a plurality of valves fixed to the plurality of screw holes, and And a hydraulic part fixed to the valve and configured to be coupled to a block provided on the upper side of the turning joint part, the hydraulic part including a second pipe for injecting oil into the turning joint part.

As another feature of the present invention, the cover is provided with an inner groove in the circumferential direction on the inner side, a temperature sensor on the outer surface and a long hole is formed in the protrusion protruding up and down is characterized in that the oil is introduced and discharged. .

As another feature of the present invention, the housing is provided with a plurality of inlet openings penetrating upwards in a plurality of inlet grooves formed in the inner circumferential direction, characterized in that the plurality of discharge grooves penetrating downwards of the plurality of discharge grooves formed in the inner peripheral direction do.

As another feature of the present invention, the groove is characterized in that it is provided at regular intervals between both ends and the plurality of inlet and outlet grooves in the inner circumferential direction of the housing.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. However, the technical scope of the present invention is not limited by the following description.

1 is a perspective view showing a heterogeneous composite seal seal durability tester for a high pressure turning joint according to the present invention, Figure 2 is a side cross-sectional view showing a heterogeneous composite seal seal durability tester for a high pressure turning joint according to the present invention, Figure 3 4 is an exploded view showing a heterogeneous composite seal durability tester for a high pressure turning joint, and FIG. 4 is a cross-sectional view showing the structure of a turning joint part according to the present invention.
Looking at the configuration with reference to Figures 1 and 2, the durability tester 100 for testing the durability of the rotating seal, including the composite seal (seal) is a turning joint 10, the drive unit 20 and the delivery unit ( 30) and the hydraulic part 40.
Turning joint portion 10, as shown in Figure 3 and 4 is fixed to a fixed height to a support frame 18 fixed to one side upper surface, the inner groove 111 is provided in the circumferential direction on the inside, In order to detect the temperature change of the seal during the durability test of the seal, the outer surface is provided with a temperature sensor 17, and a cover for forming an inlet and outlet of oil by forming a long hole 113 in the protrusion 112 projecting up and down ( 11) is configured.
In addition, the inlet 151, which is inherent in the cover 11 and penetrated upwards of the plurality of inlet grooves 15 formed in the inner circumferential direction to form a condition for achieving the durability test of the seal by making oil inflow, is provided. The discharge port 161 and a plurality of seals penetrated under the plurality of discharge grooves 16 formed in the inner circumferential direction to discharge the leaked oil discharged when the seal is abnormal according to the durability test of the seal are installed in the inner circumferential direction. The housing 12 is provided with grooves 152 provided at regular intervals between both ends and the plurality of inlet grooves 15 and the plurality of outlet grooves 16.
In addition, the block 14, which is inherent in the housing 12 to form a condition for achieving the durability test of the seal and the upper and lower surfaces of the cover 11 outside the oil inlet and outlet 14 It consists of.

The block 14 is preferably provided with a through hole 141 which communicates with the long hole 113 to form an inlet and outlet of oil.

As shown in FIGS. 1 and 2 and 3, the driving unit 20 is fixed to the first rotation block 241 mounted on the motor 21 fixed to the support plate 22, and the other side to the bearing holder. It is fixed to the second rotary block 34 mounted on the (31), and consists of a rotating shaft 24 having a torque sensor 23 on the outer side.
It is preferable that one side of the first rotation block 241 is fixed to the motor 21 through the through hole 221 of the support plate 22.
The other side of the rotation shaft 24 is fixed to achieve the rotation and the rotation shaft 24 and the second rotation block 34 is easily mutually fixed, the first circular groove 243 is provided with the second rotation block It is preferable that it further comprises a first rotary cover 242 to form a mutual coupling with (34).

As shown in FIGS. 1 and 2 and 3, the transmission unit 30 is configured to transmit the driving force generated by the driving unit 20 to the rotation shaft 13 of the turning joint part 10, and one side thereof. Is fixed to the second rotary block 34 mounted on the bearing holder 31, the other side of the universal joint 33 is fixed to the rotary shaft 13 of the turning joint 10, and the second rotary block The upper pulley 32 which is fixed and rotated by the 34 and the lower pulley 321 which is connected to the upper pulley 32 by the belt 322 to be rotated by the encoder 35 mounted on the fixed rotating shaft 351. It is composed.
The second rotating block 34 is provided with a circular protrusion 341 for easily rotating by making a first circular groove 243 of the first rotating cover 242 to achieve rotation and the first circular groove 243. It is preferable to form a mutual coupling, it is fixed to the first rotating cover 242 to form a rotation.
The rotary joint 13 of the universal joint 33 and the turning joint 10 are easily fixed to each other so that the other side of the universal joint 33 is fixed, and a second circular groove 343 is provided. It is preferably configured to further include a second rotary cover 342 which is mutually coupled with the rotary shaft (13).
The second rotating cover 342 is preferably configured to rotate in combination with the rotating shaft 13 by the second circular groove 343 is installed in the through hole 181 formed in the support frame 18.

The bearing holder 31 has a circular protrusion 341 of the second rotating block 34 coupled to the first circular groove 243 provided in the first rotating cover 242 of the driving unit 20. In order to achieve smooth rotation, it is preferable to provide a bearing 311.

The hydraulic part 40 is provided at the side of the support frame 18 as shown in FIGS. 1 and 2 and 3, and oil is introduced into one side by the hydraulic motor 43 and the first pipe 431. And a manifold 41 having a plurality of screw holes 411 on the other side, a plurality of valves 42 fixed to the plurality of screw holes, and fixed to the valves of the turning joint part 10. The second pipe 421 is formed by coupling to the block 14 provided on the upper side to inject oil into the turning joint 10.
The hydraulic motor 43 is provided on the upper portion of the oil tank 44 provided in the lower side of the main frame 50 and the oil stored in the oil tank 44 by the first pipe 431 to the manifold ( 41) It is injected at a predetermined pressure on one side.
In order to facilitate coupling of the valve 42 and the second pipe 421, a plurality of elbows 422 may be provided to facilitate coupling of the valve 42 and the second pipe 421.
The second pipe 421 is preferably coupled to the through hole 141 provided in the block 14 provided on the upper side of the turning joint part 10 to inject oil into the turning joint part 10. Do.

Referring to the coupling relationship and the effect of the present invention configured as described above are as follows.

As shown in FIG. 4, the housing 12 is inherently coupled to the inner groove 111 provided in the cover 11 of the turning joint part 10, and the housing 12 is provided in the inner circumferential direction. A plurality of test seals are installed in the plurality of grooves 152.
As described above, the rotary shaft 13 is inserted into the housing 12 embedded in the cover 11 to be combined to be embedded in the housing 12.
Turning joint portion 10 formed as described above is fixed to the support frame 18 by a fixing means.
Universal fixing bolts are used as the fixing means, but a separate fixing means may be used for the convenience of the user.
In order to drive the turning joint part 10 fixed to the support frame 18 as described above, the motor 21 fixed to the support plate 22 forms a rotation and the rotation shaft 24 is rotated by the rotation of the motor 21. This rotation makes the universal joint 33 of the transmission unit 30 interconnected with the rotation shaft 24 makes the rotation, and the rotation shaft 13 of the turning joint part 10 is rotated by the rotation of the universal joint 33. To achieve.
In addition, the oil stored in the oil tank 44 of the hydraulic part 40 for supplying oil to the turning joint part 10 is driven through the first pipe 431 to drive the hydraulic motor 43. 41 is injected into the oil at a predetermined pressure, and the oil injected into the manifold 41 is turned by the valve 42 and the second pipe 421 fixed to the plurality of screw holes 411. The injection of oil is made to the block 14 provided on the upper surface of the cover 11 of 10 to achieve the injection of oil to the cover (11).

The heterogeneous composite seal endurance tester 100 for the high pressure turning joint, which is formed as described above, is formed by the hydraulic part 40 of the block 14 installed on the protrusion 112 at the upper side of the cover 11 at a predetermined pressure. The oil flows through the through hole 141, and the oil flows into the inner groove 111 provided in the cover 11 by the long hole 113 of the protrusion 112 and flows into the inner groove 111. Oil is injected into the plurality of inlets 151 provided in the housing 12 to form the rotary shaft 13 and the housing 12 along the plurality of inlet grooves 15 provided in the inner circumferential direction of the housing 12. Since the injection of oil at a predetermined pressure to achieve the condition of the durability test of the seal.
Turning joint portion 10, which meets the conditions of the durability test of the seal as described above, the durability test of the seal mounted on the groove 152 by the rotating shaft 13 which is rotated by the drive unit 20 and the transmission unit 30. The oil leaked by the breakage or wear of the seal is discharged by the discharge groove 16 and the discharge port 161 formed in the inner circumferential direction at a predetermined interval from the groove 152 and the inlet groove 15. The oil discharged from the housing 12 is discharged to the outside by the through hole 141 of the long hole 113 and the block 14 provided at the bottom of the cover 11 and sealed by the oil discharged as described above. To achieve the durability test.

In addition, the temperature change of the seal generated by the friction between the rotating shaft 13 and the seal during the durability test of the seal is to measure the data by the temperature sensor 17 provided on the outside of the cover (11).
In addition, since a plurality of rotation shafts 13 and 24 aligned in a row may have an eccentric center of the shaft, a universal joint 33 is installed to correct this, so that the shaft center may be corrected even when eccentric. ) Was able to rotate smoothly.
In addition, since a plurality of rotating shafts 13 and 24 are connected, the amount of torque can be detected by detecting the rotating torque generated by the sudden test of the rotating torque generated by the sudden operation of the motor 21 and the durability of the seal. The torque sensor 23 is provided on the rotating shaft 24.

In addition, when the rotational force due to the rotation of the motor 21 is transmitted to the rotary shaft 24, the upper pulley 32 mounted on the circular protrusion 341 is rotated and provided below the lower installed on the rotary shaft 351 When the pulley 321 and the encoder 35 are rotated, it is determined whether the rotation shaft 13 of the driving unit 20, the transmission unit 30, and the turning joint unit 10 is rotated as much as the rotation of the motor 21 is set. Will be measured.

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The heterogeneous composite seal durability tester 100 for the high pressure turning joint of the present invention as described above can accurately determine the durability of the seal by turning oil leakage and the temperature change of the seal in the durability of the seal joint 10. In order to form the durability test condition of the seal, the driving unit 20 and the transmission unit 30 form a rotational force in the turning joint unit 10 as in the actual environment, and the hydraulic unit 40 The durability test of the seal is performed so that the user can predict the life of the seal in advance and replace the seal before failure or abnormality of the mechanical device to prevent the failure of the machine.

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Although a preferred embodiment according to the present invention has been described above, it is an example, and various changes and modifications will be apparent to those skilled in the art, which can be understood through the appended claims that all belong to the scope of the present application. will be.

As described in detail above, the present invention provides test data by measuring the durability of a seal such as a rotary seal or a high-pressure turning heterogeneous composite seal, and when a problem occurs due to wear or leakage occurring when operating at high pressure. It is effective to prevent the shaking and malfunction of equipment in advance.

Claims (5)

In the durability tester 100 for testing the durability of the rotating seal, including the composite seal, A cover 11 fixed at a certain height to a support frame 18 fixed to one side of the upper surface to form inflow and outflow of oil, and an inflow of oil inherent in the cover 11 to achieve durability test of the seal. It is provided with a plurality of inlet grooves 15 forming a condition and a plurality of discharge grooves 16 for discharging leakage oil discharged at the time of abnormality of the seal according to the durability test of the seal, and grooves 152 on which a plurality of seals are installed. The housing 12, the rotary shaft 13 inherent in the housing 12 to form a condition for the durability test of the seal, and the cover 11 is installed on the upper and lower surfaces of the outer cover 11 to achieve the inflow and discharge of oil A turning joint (10) attached to the block (14) and attached to the cover (11) and configured with a temperature sensor (17) for detecting a temperature change of the seal during the durability test of the seal; One side is fixed to the first rotation block 241 mounted on the motor 21 fixed to the support plate 22, the other side is fixed to the second rotation block 34 installed on the bearing holder 31, torque A driving unit 20 composed of a rotating shaft 24 having a sensor 23; One side is fixed to the second rotary block 34 mounted on the bearing holder 31, the other side is a universal joint 33 fixed to the rotary shaft 13 of the turning joint 10, and the second rotation The encoder 35 mounted on the rotating shaft 351 to which the upper pulley 32 fixed and fixed to the block 34 and the lower pulley 321 connected to the upper pulley 32 by the belt 322 and rotated are fixed. A transmission unit (30) consisting of; The manifold 41 is provided on the side of the support frame 18, the oil flows into one side by the hydraulic motor 43 and the first pipe 431, and a plurality of screw holes 411 are formed on the other side. And a plurality of valves 42 fixed to the plurality of screw holes 411 and a block 14 fixed to the valve 42 and installed on an upper side of the turning joint part 10. A heterogeneous composite seal endurance tester for a high pressure turning joint, comprising: a hydraulic part 40 composed of a second pipe 421 for injecting oil into the part 10. The method of claim 1, The cover 11 is provided with an inner groove 111 in the circumferential direction on the inner side and a temperature sensor 17 on the outer surface thereof, and a long hole 113 is formed in the protrusion 112 protruding up and down to introduce oil. And heterogeneous composite seal durability tester for high pressure turning joints, characterized in that the discharge is made. The method of claim 1, The housing 12 includes an inlet 151 penetrating upward of the plurality of inlet grooves 15 formed in the inner circumferential direction, and an outlet 161 penetrated below the plurality of the outlet grooves 16 formed in the inner circumferential direction. Heterogeneous composite seal endurance tester for high-pressure turning joint characterized in that it is provided. The method of claim 1, The groove 152 is a high-pressure turning joint, characterized in that provided at regular intervals between both ends and the plurality of inlet grooves 15 and the plurality of discharge grooves 16 in the inner circumferential direction of the housing 12. Heterogeneous composite seal durability tester. The method of claim 1,  The rotary shaft 24 is a heterogeneous composite seal endurance tester for a high-pressure turning joint, characterized in that provided with the torque sensor 23 on the outer surface.

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