KR101244890B1 - Crackable Snubber Functional Test Device - Google Patents

Abstract

Snubber size is divided into large and small cylinder diameter and snubber large and small. Therefore, in order to be able to change the cradle for the snubber to be tested according to the size of the snubber, the snubber fixing device in the snubber holder can be fixed even if the snubber cylinder has a different diameter. It should be possible to fix the snubber even if the snubber is different in length. Therefore, snubber holders should be able to vary in length depending on the size of the snubber, and in width and height.
As the size of the snubber changes, the size of the pressurization system that can cause a slow and sometimes sudden change in the length of the snubber must also be able to change. The pressure cylinder can be fixed even if the diameter of the different, and the test device base 40, the pressure cylinder (10, 加壓 cylinder) and snubber (20, Snubber) and so that the pressure cylinder can be fixed even if the length of the pressure cylinder is different A prefabricated machine part consisting of a device for fixing the end and the middle of the pressurizing cylinder and a device for fixing the end and the middle of the snubber, a pressure propulsion device for transmitting a force to the snubber using hydraulic pressure, and performance data acquisition And a performance test control and recording device for performing communication and control of the pressure propulsion device with the device and the performance data recording device. Lip / disassembly was possible.

Description

Prefabricated Snubber Functional Test Device

The present invention relates to a performance testing apparatus for snubbers, in particular, a device for testing in a same building in which a snubber is installed in order to perform a performance test on a snubber installed in the field.

The present invention is a snubber performance test apparatus for inspecting the performance of a snubber in use, particularly a device for checking the performance of the snubber in a state where the pipes and equipment of a nuclear power plant are installed by section. The technology behind the test snubber performance tester is the background. The technical literature related to this patent is as follows.
-<Document 1, Product Manual> S2000NM Snubber Test Bench (Bench Snubber Test Bench), "www.diaconcorp.com /s2000nm_test_benches.html"
-<Document 2, Product Manual> IPST 10 O & M Manual, In Place Snubber Test Machine Model IPST10 (Hydraulic Snubber Valve Performance Tester), Diacon Corporation
-<Patent 3, Patent> US Patent No. 4314473, Method and Apparatus for Testing Snubbers In Situ, Patent Holder: Anchor / Darling Industries, Inc.
-<Document 4, Product Manual> PS247 Validator (Mechanical Snubber Performance Tester), Pacific Scientific
-<Document 5, Patent> Registered Korean Patent No. 10-0628279, 19.19.2006, performance test method and device of snubber that can be performed on site, patent holder: Sugon Baek
-<Document 6, Research Report> Development of Portable Nuclear Power Snubber / Hanger Performance Test System, Baek Su Gong et al., 2005.5.31, Ministry of Science and Technology, p15-33
The apparatus for testing snubber performance is roughly classified into a bench type, a mobile hydraulic valve test type, a mobile section test type, and a direct test type in an installed state. Bench type 1 is an example that is mainly used by snubber manufacturing companies. The snubber to be tested is separated from the field in a large stationary machine, brought to the place where the machine is located, mounted on a test apparatus, and tested. Equation 2 is an apparatus for moving the test apparatus to a place where a snubber is installed as an example, and removing and testing only a valve that is a component of a hydraulic snubber. It is a method of moving the test apparatus to a smaller size and moving it to a building in which a snubber is installed, removing the snubber installed in the field, and attaching the test apparatus to the test apparatus. The direct test formula in the installed state is a method of directly testing the snubber at the position where the snubber is installed as an example of the patent of Document 5 above. Document 6 is a research report commercializing the patent cited in Document 5.
Snubbers installed on site vary in capacity and size. The snubber also varies in size and capacity, depending on the size and capacity of the pipe or equipment that the snubber will protect. In order to use snubbers with different sizes, shapes, and capacities in a single facility area, the range of treatment for each snubber's size and capacity is determined, and large ones are treated as large testers and small ones as small testers. Efficient Therefore, the conventional test apparatus is based on how different the capacity and size of the snubbers installed in the field, but in the case of the 1000MW class nuclear power plant is usually equipped with five or more test equipment and testing.

Nuclear power plants have numerous snubbers installed on site piping and mechanical facilities to maintain seismic and impact resistance. Nuclear power plants perform regular maintenance for a period of about one month each year. Perform tests to verify the performance of the nubber. In testing the snubbers installed in the field, how to efficiently test the numerous snubbers installed in the field is an important factor in determining the economic efficiency and safety of the nuclear power plant. Considerations for testing snubbers include:
-Should you remove the snubbers installed on site (or take them off or on-site) and move them to the test equipment at the plant outside of the power plant or test them on site?
-Will the snubber be tested as a whole or only part of the snubber?

Of course, in case of carrying out the test, it is uneconomical because it adds the cost of decontamination and the decontamination cost for the removal of the radiation source. Therefore, if only some parts of the snubber are tested, The interlocking performance of the snubber body itself is to be tested, since the entire snubber member is integrated. In this case, it is necessary to bring the snubbers of various capacities to the vicinity where the snubbers are installed and to test them. In the present invention, since the conventional test equipment has different test apparatuses for different capacities, it must hold several pieces of equipment at the same time, so it is difficult to apply them in the field because it takes a lot of cost and a large place, and a snubber of various capacities in one test apparatus. We need to be able to test everything.
If you have several types of test equipment to test one type of equipment, moving them from one section to another is costly and time-consuming, and the cost of purchasing them is inevitably high. The aim was to unify multiple test devices into one.
Therefore, in the present invention, a snubber performance test apparatus installed at a power plant or a business site was tested with several kinds of snubber performance test apparatus. In the present invention, a single performance test apparatus or at least one or two test apparatuses may be used. It is to be able to test snubber and snubber of all capacity.

The reason why the test equipment for testing the snubber as needed conventionally requires at least one power plant or five kinds of equipment for each plant is that there are many different sizes and capacities of snubbers installed in the field. This is because the size of fasteners fastened to pipes or mechanical equipment is also different, so small equipment cannot be tested in large capacity, and large equipment cannot be tested in small capacity.
The method of testing a snubber is to test the snubber's ability to move at low speeds, such as thermal expansion, and to test its ability to stop it from impacts such as earthquakes. Therefore, one end of the snubber is fixed and the other end of the snubber is tested. In connection with the test apparatus, the impact force and the low speed displacement are applied simultaneously to this connection, and the result is tested. The hydraulic cylinder is a facility that can simultaneously perform shock and slow movement. The snubber test device necessarily requires a hydraulic cylinder. Since the snubber also has the same body as the hydraulic cylinder, the snubber test device is referred to as two hydraulic cylinders (one for pressurizing the cylinder and one for pressurizing cylinders). >, One shall be able to be equipped with external equipment such as a snubber body to be tested. The diameter of the hydraulic cylinder varies according to the capacity of the snubber, and the size of the snubber measuring device must vary according to the length of the hydraulic cylinder. Therefore, the present invention has been invented as follows in order to compress a hydraulic cylinder-shaped device required for several kinds of snubber test apparatus into one test apparatus.
1.The left and right side plates 41 and the fixed body 31 which firmly hold various pressure cylinder bodies having different diameters and shapes as one part in order to have a function of firmly fixing pressure cylinders and snubbers having different diameters in one test apparatus. To prevent the axial movement of the cylinder despite applying a strong impact with the cylinder stator 30 having the skeleton of the base clamping rod 33, the planar spacer 34, the cylinder clamping rod 32, and the corner spacer 35. The cylinder end stator 30E was invented for this purpose.
2. In order to fix pressurized cylinders of different lengths, one cylinder is placed on both sides of the cylinder body, and the cylinders are placed back and forth and caught by four fixed bodies. The connection hole 42 and the foundation connector 36 were invented.
3. The cylinder stator 30 and the cylinder end stator 30E were applied to a snubber to invent a snubber having a different diameter and length in one test apparatus.
4. To ensure that the applied pressure of the pressurized cylinder reaches the snubber because the axis of the pressurized cylinder and the snubber are on a straight line in spite of different sizes and shapes of the pressurized cylinder and snubber in one test device. In order to adjust the width and position of the fixed body 31 in order to adjust the height of the cylinder clamping rod 32, so that the flat spacer 34 and the corner spacer 35 to press the body of the pressure cylinder and snubber It was.

  Therefore, the present invention enables to change the test apparatus required for the test according to the capacity of the snubber, and to change the cradle for mounting the snubber to be tested according to the size of the snubber as one test apparatus. It was possible to test snubbers of various shapes and specifications.

By varying the snubber's capacity, it is possible to change the test equipment required for the test, and to mount the cradle to which the snubber to be tested can be changed according to the size of the snubber. The performance test of the snubber of size can be carried out in the field without carrying out complicated work such as decontamination while taking out the snubber used in the place of radiation such as a nuclear power plant. Testing with the test equipment in one power plant allowed the test to be completed with only one test equipment.

1 is an embodiment of a prefabricated performance test apparatus of snubber according to the present invention
Figure 2 is an embodiment of a large category of prefabricated performance testing apparatus of snubber according to the present invention
3 is an explanatory diagram for defining a direction in the present invention.
Figure 4 is an embodiment of a prefabricated performance test apparatus of snubber according to the present invention
5 is an explanatory diagram of a main body connecting portion and a mobile connecting portion according to the present invention;
Figure 6 is an embodiment of a test apparatus basis according to the present invention
Figure 7 is an embodiment of the cylinder stator according to the present invention
8 is an embodiment of a cylinder end plate according to the present invention

Definition of Terms

Before and after, up and down, left and right: In the present invention, for the detailed description of the snubber test apparatus, the definition of the length, width, and height of the apparatus is as follows. Define the direction.

Length, width, height: Set the coordinates corresponding to (1) of [Fig. 2] as shown in (2) of [3], and the length and width in the front and rear directions, the length and width in the horizontal and vertical directions Define big and small as height.

Snubber is a facility installed to protect the breakage of pipes from impacts such as earthquakes and other important industrial facilities, especially nuclear power plants. This snubber is responsible for absorbing deformations that occur at low speeds, such as thermal expansion of pipes, and holding the pipes tight when the impact force of deformation occurs at high speeds such as hammering or earthquake. . In order to measure the health of the snubber, it is necessary to evaluate the snubber operation while causing a low speed change in the snubber, and to evaluate the snubber operation while causing a high speed change. The equipment that can cause the low speed and high speed deformation of the snubber can be carried out using hydraulic pressure, and the snubber performance test apparatus which is already commercialized is widely used.

  Snubber performance tester is a device that simulates the required motion of snubber. A snubber is a device that is fixed at one end to a building and the other end is fixed to a pipe so that the rod freely expands and contracts according to the movement of the pipe and stops moving when an impact is transmitted. . Therefore, the snubber performance tester should have the function of fixing the snubber and shocking the rod while allowing the other end to move freely.

This snubber test device is designed to test the largest snubber in order to be able to test various snubbers on a single device. It is brought to the factory and tested, which makes it inefficient than testing in the field. The industry in this field is using modular test equipment that makes several modules that fit snubber sizes and uses only those that fit within a certain size range. However, even with the modular test apparatus, there are inconveniences of carrying several test apparatus to the site.

Therefore, the present invention, even when the test in the field with the snubber installed in the field or the test in the factory, while testing the performance of the snubber of various sizes in a single test device, so that the test device is small and light, so that it is convenient to move For this purpose, it is to perform performance test of all snubbers by simply replacing a few members at any time and any place regardless of snubber size and capacity.

  In general, snubber performance test equipments are designed to test the largest snubbers in order to test various snubbers in one place. It is very cumbersome to take the snubber installed in the field for the test of this snubber and take it to the place where the test apparatus is located. Therefore, the present invention is to largely classify the capacity of the snubber so that the test apparatus can be taken where the snubber is installed, and to develop a prefabricated snubber test apparatus for the purpose of testing the large sorted snubber in the field. The purpose was to.

  Therefore, the present invention relates to a method and apparatus for allowing the testing apparatus required for the test to be changed according to the capacity of the snubber, and the cradle for mounting the snubber to be tested according to the size of the snubber. will be.

  Snubbers come in many varieties, from small to large. Snubber size is divided into large and small cylinder diameter and snubber large and small. Therefore, in order to be able to change the cradle for the snubber to be tested according to the size of the snubber, the snubber fixing device in the snubber holder can be fixed even if the snubber cylinder has a different diameter. It should be possible to fix the snubber even if the snubber is different in length. Therefore, snubber holders should be able to vary in length depending on the size of the snubber, and in width and height.

As the size of the snubber changes, the size of the pressurization system that can cause a slow and sometimes sudden change in the length of the snubber must also be able to change. Even if the diameter of the pressurized cylinder can be fixed, the pressurized cylinder should be able to be fixed even if the length of the pressurized cylinder is different.

The present invention

In the snubber performance test apparatus which mounts the snubber to the test apparatus placed on the ground in order to evaluate the performance of the snubber, and records the performance of the snubber appearing while applying an external force,

  Test apparatus base 40, a pressurized cylinder fixing device (CY) prefabricated to fix the end and the middle of a pressurized cylinder of any outer diameter and any length on the test apparatus base 40, the test apparatus base 40 Snubber fixing device (SN), which is prefabricated to fix the end and the middle of the snubber of any outer diameter and any length above, the hinge connecting the pressurized cylinder and the upper end of the snubber to each other by a hinge. Prefabricated including a nubber connecting device, a prefabricated pressure propulsion device (PR) for applying a test external force to the pressure cylinder, and a prefabricated performance data recording device (DA) for acquiring the performance data varying according to the action of the test external force. A method for performing a performance test of a snubber, comprising a snubber test apparatus, is provided by arranging a test apparatus base 40 on the test apparatus base 40. A pressurized cylinder fixing step of prefabricating the end and the middle of the pressurized cylinder of any outer diameter and any length, and prefabricating the end and middle of the snubber of any outer diameter and any length on the tester base 40 A snubber fixing step, a snubber operating body connecting step of fastening the mounted pressure cylinder and the upper connector of the snubber to each other by a hinge; By connecting the prefabricated performance data recorder to obtain the performance data that changes according to the operation, the pressure cylinder and snubber of arbitrary size and shape can be prefabricated in one tester body and tested. The present invention relates to a prefabricated performance testing device of a snubber and a method of testing using the same.

 The apparatus described above is further described as follows.

The base of the test apparatus 40 is a left and right side plate 41 having a cylinder connecting hole 42, which is a plurality of holes drilled in the axial direction of the long structural member, one on the left and one on the right in parallel at a predetermined interval, A left and right connector 43, which is an arbitrary structural member, is connected between the parallel left and right side plates in front and rear of the left and right side plates, and a bottom connector 44 is connected to the left and right side plates and the left and right connectors. In addition, the prefabricated pressure propulsion unit PR includes a hydraulic controller 50 which is a hydraulic supply device having a conventional hydraulic pump, a control valve 60 which is a normal control valve, a flow meter 70 which is a normal flow meter, and a normal pressure. The pressure transducer 80 which is a transducer, the compression tank 90 which is a normal compression tank, the direction controller 100 which is a normal direction controller, and the pressurizing cylinder 10 are prefabricated. The above-described assembled performance data recording apparatus DA includes a load cell 110 which is a conventional load cell, an accelerometer 120 which is a normal accelerometer, a speedometer 130 which is a normal speedometer, a length converter 140 which is a normal length converter, and a conventional Comprehensive connection between the control and recorder 150 and the hydraulic controller 50 using the computer as the main controller.

The pressurized cylinder fixing device CY arranges the fixing body 31 on the left and right sides of the front part of the test apparatus base 40, and both ends of the base clamping rod 33 are connected to the cylinder connection hole of the test apparatus base 40. 42), the tester base 40 and the fixed body 31 are integrated to be fastened to coincide with the base connector 36 of the fixed body 31, and the front and right sides of the test device base 40 The two ends of the cylinder fastening part 32 are fastened to coincide with the upper and lower portions of the cylinder connector 37 of the fixed body 31, and the cylinder end plate 38 is located at the center of the two cylinder connectors 37. ) Is assembled so that the end of the pressurized cylinder is fixed, and the fixing body 31 is disposed at the left and right front center portions of the test apparatus base 40, and both ends of the base tightening rod 33 are connected to the test apparatus. The cylinder connection hole 42 of the base 40, the fixed body 31 The tester base 40 and the fixed body 31 are integrally fastened to coincide with the base connector 36, and the fixed body 31 is disposed at the left and right sides of the front of the tester base 40. The two ends of the cylinder fastening portion 32 are fastened to coincide with the upper and lower portions of the cylinder connector 37 to fix the middle of the pressure cylinder, and to the cylinder end plate 38 installed in the pressure cylinder lower support fixing step. The lower end connector of the pressure cylinder 10 is hinged to the provided cylinder lower stator 39 by a hinge, and the pressure cylinder 10 is interposed between two cylinder fasteners 32 installed in the pressure cylinder upper support fixing step. After passing through the upper end of the), the planar spacer 34 and the corner spacer 35 are inserted between the fixed body 31 and the pressure cylinder 10, and the amount of the cylinder fastener 32 To give tightened.

The snubber fixing device SN arranges the fixing body 31 on the left and right sides of the front part of the test apparatus base 40, and both ends of the base tightening rod 33 are connected to the cylinder of the test apparatus base 40. A hole 42 is fastened to coincide with the foundation connector 36 of the fixing body 31 so that the test apparatus base 40 and the fixing body 31 are integrated, and behind the test apparatus base 40. The two ends of the cylinder fastening portion 32 are fastened to coincide with the upper and lower portions of the cylinder connector 37 of the fixed body 31 disposed at the left and right portions thereof, and the cylinder is located at the center of the two cylinder connectors 37. An apparatus for fixing the end of the snubber by assembling so that the end plate 38 is positioned, and the fixing body 31 is disposed on the left and right of the rear center portion of the test apparatus base 40, and the base tightening rod 33 Both ends of the cylinder connecting hole 42 of the tester base 40, The tester base 40 and the stationary body 31 are integrated by fastening to coincide with the base connector 36 of the fixed body 31 so as to be disposed at the center left and right behind the tester base 40. A device for fastening the two ends of the cylinder fastening portion 32 to the upper and lower portions of the cylinder connector 37 of the fixed body 31 so as to secure the middle of the snubber, and fixing the snubber lower supporter Fasten the lower end of the snubber 20 to the cylinder lower stator 39 provided in the cylinder end plate 38 installed in the step by a hinge (Hinge), the two cylinder jaw installed in the snubber upper support fixing step After allowing the upper end of the snubber 20 to penetrate between the pregnant women 32, the planar spacer 34 and the corner spacer 35 are inserted between the fixing body 31 and the snubber 20, Both ends of the cylinder fastener 32 And a tight fitting device.

The cylinder end plate 38 has a hole in the center of the end plate body (EB) and the end plate body made by cutting a conventional structural plate, and the nut-shaped length adjusting nut (NB) and the end plate having a central thread in the hole. A length adjusting rod BD consisting of a pair of fastening rod coupling portions FP made of four pipes on the edge of the body and a bolt paired with the length adjusting nut NB, and one end of the length adjusting rod may have a rectangular cross section. It has a handle (HD) made, the other end of the fixing pin body (FB) and the fixing pin hole (PH) which is a hole in the fixing pin body which is a structure that can be inserted into a hole in a normal flat plate Is provided with, the cylinder tightening rods 32 penetrates and integrates into the tightening rod coupling portion FP provided up and down.

In addition, the snubber test method described above is further described as follows.

The pressurizing cylinder fixing step includes connecting a lower end of the body of the pressurizing cylinder 10 with a device for fixing the end of the pressurizing cylinder at a position before the tester base 40 and the front center of the tester base 40. Connecting the middle of the pressurizing cylinder 10 in position to a device for fixing the middle of the pressurizing cylinder. In addition, the snubber fixing step is to connect the lower end of the body of the snubber 20 to the device for fixing the end of the snubber in the rear position of the test apparatus base 40 and the test apparatus base 40 And connecting the middle of the snubber 20 to a device for fixing the middle of the snubber at a rear center position.

It will now be described in more detail for the practice of the present invention.

All members according to the invention are shown in full overview in FIG. 1. For easy implementation of the present invention, the description of the direction defines front, rear, left, right, up, down, and length, height, and width as shown in FIG. In addition, the portion to which the pressurized cylinder is fixed is referred to as the main body connecting portion C1, and the portion to which the snubber is fixed is referred to as the moving connecting portion C2 as illustrated in FIG. The main body connection part uses the concept of a main body that performs the test because the pressurized cylinder is firmly fixed on the base of the test apparatus because there is not much necessity to assemble the snubber. We use the term mobile link in.

The apparatus according to the present invention can be broadly divided into a pressurized cylinder fixing device (CY) which is prefabricated to fix the end and the middle of a pressurized cylinder of any outer diameter and any length on the tester base 40 and the tester base 40. ), A prefabricated machine part consisting of a snubber fixing device (SN), which is prefabricated to fix the end and the middle of a snubber of any length and any length on the tester base 40, and the pressure cylinder mounted And a snubber actuator connecting device for fastening the upper connector of the snubber to each other by a hinge, a pressurizing propulsion device (PR) for applying a test external force to the pressure cylinder, and acquiring performance data varying according to the test external force. It is divided into a performance data recording apparatus DA, as shown in FIG.

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The device according to the present invention is divided into a large circle is shown in Figure 2 is a red circle in the bar pressurized cylinder fixing device (CY) and the end of the snubber as a device for prefabricating the end of the pressurized cylinder and the middle It is divided into a snubber fixing device SN, a pressurizing propulsion device PR, and a performance data recording device DA, which are prefabricated and fixed parts in a prefabricated manner, and are recorded on a line segment of a red circle.

1. Prefabricated machine part

  Prefabricated type consisting of a tester base 40, a pressurized cylinder 10, a snubber 20, a device for fixing the end and the middle of the pressurized cylinder and a device for fixing the end and the middle of the snubber The machine part can be equipped with a pressurized cylinder of any size and a snubber of any size on the basis of the test apparatus and dismantled, and the work is carried out as shown in FIGS. 1 to 8. For example, it can be configured as follows.

  It is provided with a cylinder connecting hole 42 which is a plurality of conventional fastening means in the longitudinal direction on the left and right sides of the test device base 40 which is narrow, long and low in height, such as a machine base using a conventional structural material,

  A piston rod is formed on the left and right sides of a piston of a conventional hydraulic cylinder, and the piston rod can push or pull the piston in the axial direction of the cylinder, and a lower end of the cylinder and an upper end of the piston rod And a pressurized cylinder (10) having a top connector with a hinged connecting means and a lower connector,

  As a conventional hydraulic and mechanical snubber, there is a piston rod that can push or pull the piston in the axial direction of the cylinder, and a common hinge at the lower end of the cylinder and the upper end of the piston rod. Snubber 20 having an upper connector and a lower connector with knowledge connecting means and

  A cylinder connector 37 having a plurality of conventional fastening means in the height direction on a fixed body 31 cut in a rectangular shape of a structural flat plate, and a basic connector 37 having a large number of normal fastening means in the longitudinal direction. ),

  As a rod that can be fastened over the entire length as a conventional computer bolt, and provided with a base tightening rod 33 connected to the test device base 40,

  It is provided with a cylinder fastening rod 32 connected to the pressure cylinder 10 as a rod that can be fastened over the entire length as a general computer bolt,

  A cylinder end plate 38 and a cylinder end plate 38 having a rectangular shape of a general structural flat plate are formed to fill a space having a predetermined distance in the height direction of the two cylinder fastening rods 32. Cylinder lower stator (39), which is a pin fastening mechanism,

The cylinder spacer bar 32, which is a triangular cross-section rod for a general structural triangular cross section, and a planar spacer 34 having a rectangular structural plate cut in a rectangular space, a space having a predetermined distance in the height direction of the two cylinder diaphragm rods 32 If equipped, a prefabricated machine part means “mechanical part of the snubber performance test apparatus that can be used prefabricated”.

  end. Test Equipment Foundation (40)

  The test apparatus base 40 and the cylinder connection hole 42 are shown in FIG. 6. FIG. 6 shows an embodiment of a tester foundation 40 according to the present invention. The base of the test apparatus 40 is the left and right side plates 41 (meaning plates on the left and right) using a linear structural material such as H-Beam, Angle, and flat plate. The left and right side plates are welded by using a common structural member or by means of rivets, bolts, and the like. Using the fastening method such as welding using the bottom connector (44) <the bottom plate connecting the left, right, left, and the right side plate connecting rods> It consists of a cylinder connection hole 42 (meaning a hole connected to the cylinder) which drilled a hole in the axial direction of the left and right side plates at regular intervals on the left and right side plates 41. The cylinder connecting hole 42 is fixed to the test hydraulic cylinder required for the snubber performance test and the cylinder stator for fixing the test snubber (meaning a rod for securing the cylinder), the cylinder stator of the plurality of cylinder connecting holes By connecting to a certain position, the distance between the test cylinder and the test snubber is adjusted.

The method of fixing the pressurized cylinder 10 to the test apparatus base 40 is as follows. The cylinder connection hole 42, which is a plurality of holes formed in the side wall of the test apparatus base, has the same hole size and the same spacing between the holes as the base connector 36, which is a hole formed in the lower part of the fixing body 31, and fits the bolt nut When the same assembly from side to side using a fastening mechanism, such as a triangular flat plate is fixed to the base left and right of the rectangular parallelepiped.

  I. Pressurized cylinder 10 and snubber 20

  The pressurized cylinder 10 uses a normal commercial hydraulic cylinder.

  The snubber 20 can test both a mechanical snubber and a hydraulic snubber in the test setting according to the present invention as a test object to be tested for performance.

    The pressurized cylinder 10 and the snubber 20 included in the prefabricated machine part have a piston in a common cylinder, a rod connected to the piston, and one end of a rod not connected to the piston and an end of a cylinder without a rod. Silver Eye or Clevis-shaped connectors. This connecting mechanism is connected by inserting a pin. In the present invention, the rod end connecting mechanism is referred to as the upper end of the pressurized cylinder or snubber, and the end connector of the cylinder is referred to as the lower end of the pressurized cylinder or snubber.

Impacting the snubber or eliciting a movement to move at a low speed is made by a pressurized cylinder 10 (meaning a cylinder for applying pressure), which is a conventional hydraulic cylinder. The pressure cylinder is fixed to the cylinder body on the tester base 40 corresponding to the normal machine base, and the piston and the piston rod in the cylinder body move to move the rod of the snubber.

  All. Apparatus and method for fixing the ends and middle of the pressurized cylinder

     The apparatus and method for fixing the end and the middle of the pressurizing cylinder is to fix the pressurized cylinder firmly to the test apparatus base. It is connected to the device for fixing the end of, and connecting the middle of the pressurized cylinder 10 to the device for fixing the middle of the pressurized cylinder in the front center position of the tester base 40.

  The device for fixing the end of the pressure cylinder and the device for fixing the middle of the pressure cylinder can be carried out as follows.

  The fixing body 31 is disposed on the left and right sides of the front part of the test apparatus base 40, and both ends of the base clamping rod 33 are connected to the cylinders 42 of the test apparatus base 40 and the fixing body. Fastening to coincide with the basic connector 36 of the (31) so that the test apparatus base 40 and the fixed body 31 is integrated, and the fixed body disposed on the left and right in front of the test apparatus base (40) ( The two ends of the cylinder fastener 32 are coincident with the upper and lower portions of the cylinder connector 37 of 31 and the cylinder end plate 38 is positioned at the center of the two cylinder connectors 37. The assembly is configured to fix the end of the pressure cylinder.

The fixing body 31 is disposed on the left and right front center portions of the test apparatus base 40, and both ends of the base tightening rod 33 are connected to the cylinder connection hole 42 of the test apparatus base 40 and the fixing unit. Fastening so that the test device base 40 and the fixed body 31 is integrated by fastening to coincide with the base connector 36 of the body 31, and are disposed at the center left and right in front of the test device base 40. The upper and lower ends of the cylinder connector 37 of the body 31 are fastened so that the two ends of the cylinder fastening portion 32 coincide with each other to secure the middle of the pressure cylinder.

Fastening the lower end connector of the pressure cylinder (10) by a hinge (Hinge) to the cylinder lower stator (39) provided in the cylinder end plate 38 installed in the pressure cylinder lower support fixing step, and fixing the pressure cylinder upper support After allowing the upper end of the pressurized cylinder 10 to penetrate between the two cylinder fasteners 32 installed at, the flat spacer 34 and the corner spacer 35 pass through the fixed body 31 and the pressurized cylinder ( 10) between the steps, it may be possible to perform the step of fixing the pressurized cylinder to tightly tighten both ends of the cylinder fastening portion (32).

  The device for fixing the end of the pressurized cylinder and the device for fixing the middle of the pressurized cylinder may be implemented as illustrated in [FIG. 1], [FIG. 4] and [FIG. 7].

  Cylinder stator 30 <meaning device for fixing a hydraulic cylinder> is a fixed body 31 << something fixed by cutting a conventional flat plate in a right triangle or a square shape as illustrated in (2) of FIG. Cylinder connector (37) which means a plurality of holes at regular intervals in the vertical direction with the ground, and a basic connector having a plurality of holes at regular intervals in the horizontal direction with the ground ( 36) <holes to connect with the foundation (test device foundation)>. The fixed body 31 is disposed on the left and right sides of the test apparatus base 40, and the base connector 36 and the cylinder connection hole 42 disposed on the left and right sides penetrate the base tightening rod 33 composed of ordinary computer bolts. When the left and right ends of the basic connector 37 and the cylinder connecting hole 42 are tightened with nuts, the distance between the two fixing bodies 31 is fixed while being fixed. In addition, the cylinder connector (37) through the cylinder connecting rod 32 consisting of a conventional computer bolt through the cylinder connector disposed on the left and right in a state in which the fixed body 31 is disposed on the left and right of the tester base (40). Tightening both ends of the left and right as a nut is fixed while the distance between the two fixing body 31 is fixed.

Including a flat spacer 34 and a corner spacer 35 here is a cylinder stator 30 for fixing the middle of the pressurized cylinder, and a cylinder end plate 38 and a cylinder end connector 39 are included at the end of the cylinder. It becomes the cylinder end stator 30E which fixes this.

  -Method and device for fixing the cylinder end plate 38

  An end plate body (EB) made by cutting a conventional structural plate and a hole in the center of the end plate body, and a nut-shaped length adjusting nut (NB) having a central thread in the hole and a four edges of the end plate body Tightening rod coupling portion (FP) made by cutting the pipe and the length adjustment rod (BD) consisting of a bolt paired with the length adjustment nut (NB) and one end of the length adjustment rod is a handle (HD) made a square cross-section And, the other end is provided with a fixing pin body (FB) that is a structure that can be inserted into the pin by drilling a hole in a common flat plate and a fixing pin hole (PH) that is a hole in the fixing pin body,

The cylinder tightening rod 32 may be integrated while penetrating the insertion rod coupling portion FP provided up and down.

 -How to connect cylinder end plate and pressurized cylinder

The lower end connector of the pressure cylinder and the eye type or clevis type connection mechanism, which are the cylinder end connector 39, are connected by using a fastening mechanism such as an ordinary pin or an ordinary bolt nut. The same is true for connecting the cylinder end plate and the snubber.

  la. Device and method of fixing the end and middle of the snubber

    The device and method for fixing the end and the middle of the snubber is to securely fix the snubber to the tester base, and the lower end of the body of the snubber 20 at the position behind the tester base 40. It is connected to the device for fixing, and refers to connecting the middle of the snubber 20 to the device for fixing the middle of the snubber in the rear center position of the test apparatus base 40.

  The method of fixing the end and the middle of the snubber is the same as the method of fixing the end and the middle of the pressure cylinder, and the same method of use.

  The device for fixing the end of the snubber and the device for fixing the middle of the snubber can be carried out as follows.

  The fixing body 31 is disposed on the left and right sides of the front part of the test apparatus base 40, and both ends of the base clamping rod 33 are connected to the cylinders 42 of the test apparatus base 40 and the fixing body. Fastening to coincide with the base connector 36 of the (31) so that the test apparatus base 40 and the fixed body 31 is integrated, the fixed body disposed on the left and right portions of the back of the test apparatus base (40) ( The two ends of the cylinder fastener 32 are coincident with the upper and lower portions of the cylinder connector 37 of 31 and the cylinder end plate 38 is positioned at the center of the two cylinder connectors 37. The assembly is configured to secure the end of the snubber.

The fixing body 31 is disposed at the left and right of the rear center portion of the test apparatus base 40, and both ends of the base tightening rod 33 are connected to the cylinder connection hole 42 of the test apparatus base 40 and the fixing. Fastening to be consistent with the base connector 36 of the body 31 so that the test device base 40 and the fixed body 31 is integrated, and fixed to the left and right of the central portion behind the test device base 40 The two ends of the cylinder fastener 32 are coincident with the upper and lower portions of the cylinder connector 37 of the body 31 to configure an apparatus for fixing the middle of the snubber.

Fastening the lower end connector of the snubber 20 with a hinge to the cylinder lower stator 39 provided in the cylinder end plate 38 installed in the snubber lower support fixing step, and fixing the snubber upper support After passing through the upper end of the snubber 20 between the two cylinder fasteners 32 installed in the planar spacer 34 and the corner spacer 35, the fixed body 31 and the snubber ( 20), the snubber fixing step can be performed by tightly tightening both ends of the cylinder tightening portion (32).

  hemp. How to connect the rod of the pressure cylinder and the rod of the snubber

The snubber actuator connecting step of fastening the upper end of the pressurized cylinder 10 and the snubber 20 to each other by a hinge is an upper end of the pressurized cylinder 10 and the upper end of the snubber 20. The clevis connection mechanism can be connected by using a fastening mechanism such as a normal pin or a normal bolt nut.

2. Pressure Propulsion

The pressure propulsion device is an embodiment shown in Figure 4 is a bar that applies a conventional hydraulic device to the present invention.

  The pressure propulsion device includes a hydraulic controller 50 which is a hydraulic supply device having a conventional hydraulic pump, a control valve 60 which is a normal control valve, a flow meter 70 which is a normal flow meter, and a pressure transducer 80 which is a normal pressure transducer. ), A compression tank 90 which is a normal compression tank, a direction controller 100 which is a general direction controller, and a pressure cylinder 10 are configured to transmit a force to a snubber using hydraulic pressure. Pressurized propulsion device means “applied to pressurize a pressurized cylinder”.

The CO of the pressure propulsion apparatus shown in FIG. 2 and the CO of the data recording apparatus are not connected to each other in the drawing, but are connected to each other by wires or wirelessly, which means that CO leads to CO. The same representation is shown as CN1 in FIG. 4.

3. Performance test control and recording device

  The performance test control and recording apparatus includes a load cell 110 which is a conventional load cell, an accelerometer 120 which is a conventional accelerometer, a speedometer 130 which is a conventional speedometer, a length converter 140 which is a conventional length converter, and a conventional computer. It is provided with a comprehensive control and recorder 150 and a hydraulic controller 50 to be used as a controller to communicate with and control the performance data acquisition device, the performance data recording device, and the hydraulic controllers. The performance data acquisition device is a device for acquiring data related to the performance of the snubber, and the performance data recording device is a device for recording data related to the performance of the snubber on a computer and paper.

The performance data recording apparatus and the performance data recording apparatus for performing the communication and control thereof are shown in Figs. 2 and 4, and the conventional data control and recording apparatus is applied to the present invention. .

The step of connecting the performance data acquisition device and the performance data recording device to the snubber upper end connection, and the connection of the pressure and control device for connecting the pressure propulsion device are completely assembled with the components of the prefabricated machine part, and then the snubber The performance data acquisition device and the performance data recording device may be connected to an upper end connector, and the hydraulic hose of the pressure propulsion device may be connected to the pressure cylinder.

When the hydraulic pressure is generated by the hydraulic controller 50 of the pressure propulsion device and sent to the pressure cylinder 10 using the above device, the piston rod of the pressure cylinder moves therefrom, and the end of the piston rod is the piston of the snubber to be tested. The rod end and pin are connected to move the piston rod of the snubber.The hydraulic controller can send the shock shock or send the oil slowly to induce the snubber to move the snubber or to move the snubber slowly. The performance conditions of the snubber can be performed by receiving the conditions at the time of movement and recorded in the performance data recorder.

Important terms:

Snubber, Pressure Propulsion, Prefabricated, Pressurized Cylinder, Tester Basics, Data Logger

10: pressurized cylinder
20: snubber
30: cylinder stator
40: test equipment basis
50: hydraulic controller
60: control valve
70: flow meter
80: pressure transducer
90: compression tank
100: direction controller
110: load cell
120 accelerometer
130: speedometer
140: length converter
150: comprehensive control and recorder

Claims (10)

Snubber performance in which a snubber is mounted on a test apparatus placed on the ground to evaluate the snubber performance, and the snubber performance recorded while applying an external force as a pressure propulsion device PR to a performance data recording device DA. In the test apparatus,

The left and right side plates 41 each having a plurality of cylinder connecting holes 42 are floated in parallel on the left side and one on the right side at regular intervals, and the left and right side plates are connected between the parallel left and right side plates as left and right connectors 43, and the left and right sides A tester base (40) comprising a bottom connector (44) connecting the plate and the left and right connectors;
A pressurized cylinder holding device (CY) prefabricated with a cylinder stator (30) and a cylinder end stator (30E) for fixing the end and the middle of the pressurizing cylinder of any outer diameter and any length on the tester base (40);
A snubber fixing device (SN), which is prefabricated to fix the end and the middle of the snubber of arbitrary length and arbitrary length on the tester base (40);
And a snubber actuator connecting device for fastening the upper end of the snubber cylinder and the snubber to each other by a hinge.

Prefabricated performance tester of snubber, characterized in that the pressure cylinder and snubber of arbitrary size and shape can be assembled and tested in one tester body delete delete delete delete The pressure cylinder holding device (CY) of claim 1, wherein

The fixed body 31 is disposed on the left and right sides of the front part of the test apparatus base 40, and both ends of the base clamping rod 33 are connected to the cylinder connection hole 42 of the test apparatus base 40 and the fixed body 31. The tester base 40 and the fixed body 31 are integrally fastened so as to coincide with the base connector 36 of (), and the fixed body 31 disposed at the left and right sides of the front part of the tester base 40. The two ends of the cylinder fastening unit 32 are fastened to coincide with the upper and lower portions of the cylinder connector 37, and the cylinder end plate 38 is assembled at the center of the two cylinder connectors 37 to press the pressure. Fix the end of the cylinder;
The fixing body 31 is disposed on the left and right front center portions of the test apparatus base 40, and both ends of the base tightening rod 33 are connected to the cylinder connection hole 42 of the test apparatus base 40. The tester base 40 and the fixed body 31 are integrally fastened so as to coincide with the base connector 36 of the fixed body 31, and disposed at left and right sides of the center of the test device base 40. Fastening the two ends of the cylinder fastener 32 to the upper and lower portions of the cylinder connector 37 of the fixed body 31 to fix the middle of the pressurized cylinder;
Fastening the lower end connector of the pressure cylinder (10) by a hinge (Hinge) to the cylinder lower stator (39) provided in the cylinder end plate 38 installed in the pressure cylinder lower support fixing step, and fixing the pressure cylinder upper support After allowing the upper end of the pressurized cylinder 10 to penetrate between the two cylinder fasteners 32 installed in the flat spacer 34 and the corner spacer 35 the fixed body 31 and the pressurized cylinder 10. Sandwiching between, tightening both ends of the cylinder fastening portion 32;

Snubber prefabricated performance tester The snubber fixing device SN of claim 1, wherein

The fixing body 31 is disposed on the left and right sides of the front part of the test apparatus base 40, and both ends of the base clamping rod 33 are connected to the cylinders 42 of the test apparatus base 40 and the fixing body. Fastening to coincide with the base connector 36 of the (31) so that the test apparatus base 40 and the fixed body 31 is integrated, the fixed body disposed on the left and right portions of the back of the test apparatus base (40) ( The two ends of the cylinder fastener 32 are coincident with the upper and lower portions of the cylinder connector 37 of 31 and the cylinder end plate 38 is positioned at the center of the two cylinder connectors 37. Assembly to fix the end of the snubber;
The fixing body 31 is disposed at the left and right of the rear center portion of the test apparatus base 40, and both ends of the base tightening rod 33 are connected to the cylinder connection hole 42 of the test apparatus base 40 and the fixing. Fastening to be consistent with the base connector 36 of the body 31 so that the test device base 40 and the fixed body 31 is integrated, and fixed to the left and right of the central portion behind the test device base 40 Fastening so that both ends of the cylinder fastening portion 32 coincide with the upper and lower portions of the cylinder connector 37 of the body 31 to fix the middle of the snubber;
Fastening the lower end connector of the snubber 20 with a hinge to the cylinder lower stator 39 provided in the cylinder end plate 38 installed in the snubber lower support fixing step, and fixing the snubber upper support After allowing the upper end of the snubber 20 to penetrate between the two cylinder fasteners 32 installed in the planar spacer 34 and the corner spacer 35, the fixing body 31 and the snubber 20 Sandwiching between, tightening both ends of the cylinder fastening portion 32;

Snubber prefabricated performance tester 7. The cylinder end plate (38) of claim 6 wherein

An end plate body (EB) made by cutting a conventional structural plate and a hole in the center of the end plate body, and a nut-shaped length adjusting nut (NB) having a central thread in the hole and a four edges of the end plate body Tightening rod coupling portion (FP) made by cutting the pipe and the length adjustment rod (BD) consisting of a bolt paired with the length adjustment nut (NB) and one end of the length adjustment rod is a handle (HD) made a square cross-section The other end is provided with a fixing pin body (FB) that is a structure that can be inserted into the pin by drilling a hole in a common flat plate and the fixing pin hole (PH) that is a hole in the fixing pin body,
Prefabricated performance test device of a snubber, characterized in that the cylinder tension rod 32 penetrates and integrates into an upper and lower tension rod coupling portion FP.
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