CN211318073U - Corrugated pipe wear resistance testing device - Google Patents
Corrugated pipe wear resistance testing device Download PDFInfo
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- CN211318073U CN211318073U CN201922209827.4U CN201922209827U CN211318073U CN 211318073 U CN211318073 U CN 211318073U CN 201922209827 U CN201922209827 U CN 201922209827U CN 211318073 U CN211318073 U CN 211318073U
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Abstract
The utility model discloses a corrugated pipe wear resistance testing device, which comprises a moving mechanism, a clamping mechanism, prestressed tendons and a tensioning mechanism; the clamping mechanism is integrally arranged on the moving mechanism and used for clamping a corrugated pipe spline and is abutted to the prestressed tendons, the prestressed tendons are stretched on the stretching mechanism, and the stretching direction of the prestressed tendons is parallel to the moving direction of the clamping mechanism on the moving mechanism. The utility model discloses a simple and easy automatic mode system control mechanism motion to realize accurate clamping load exert, the control and the time and the speed control of friction stroke.
Description
Technical Field
The utility model relates to a wear resistance test technical field, especially a bellows wearability testing arrangement.
Background
The application of the corrugated pipe in engineering is more and more extensive, and along with the development of the damaged technology of elements in the detection pipe, the application function of the corrugated pipe is more and more extensive, and the performance test of the corrugated pipe is more and more important. The prestressed corrugated pipe has certain rigidity, flexibility, wear resistance, sealing property and adhesion property. However, the wear resistance test is few, and no wear resistance test scheme or method is reported about the corrugated pipe, so that it is necessary to develop a wear resistance test device and a test method for the corrugated pipe to solve the problem of wear resistance test of the corrugated pipe.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving the problem of above-mentioned prior art, provide a bellows wearability testing arrangement, the utility model discloses a simple and easy automatic mode system control mechanism motion to realize accurate clamping load exert, the control of friction stroke and time and speed control. The test requirement is ensured, and the wear resistance test of the corrugated pipe is realized.
In order to achieve the above object, the present invention provides a bellows abrasion resistance testing device, which is realized by the following technical scheme: a corrugated pipe wear resistance testing device comprises a moving mechanism, a clamping mechanism, prestressed tendons and a tensioning mechanism; the clamping mechanism is integrally arranged on the moving mechanism and used for clamping a corrugated pipe spline and is abutted to the prestressed tendons, the prestressed tendons are stretched on the stretching mechanism, and the stretching direction of the prestressed tendons is parallel to the moving direction of the clamping mechanism on the moving mechanism.
Further, the clamping mechanism includes: the load limiting device comprises a connecting plate, a left baffle, a load sensor, a limiting guide rod, a left arc-shaped pressing block, a right baffle and a constant force mechanism, wherein the bottom end of the left baffle and the bottom end of the right baffle are vertically fixed on the connecting plate; the left arc-shaped pressing block and the right arc-shaped pressing block are slidably arranged on the limiting guide rod, arc surfaces of the left arc-shaped pressing block and the right arc-shaped pressing block are opposite and are abutted against the prestressed tendons, and the arc surfaces are used for clamping corrugated pipe splines; one end of the load sensor is fixed on the left baffle plate, and the other end of the load sensor is opposite to the left arc-shaped pressing block; the right arc-shaped pressing block is connected with the constant force mechanism.
Further, the constant force mechanism comprises a flange plate, a floating joint, a cylinder mounting seat, an air source, an electromagnetic directional valve a, an electromagnetic directional valve b, a throttle valve and a controller; one end of the flange plate is connected with the right arc-shaped pressing block, the other end of the flange plate is connected with the air cylinder through the floating joint, the air cylinder is installed on the air cylinder installation seat, and the air cylinder installation seat is fixed on the connecting plate; the air source is sequentially connected with the electromagnetic directional valve a, the electromagnetic directional valve b and the throttle valve in series and is finally communicated with one end of the air cylinder; the other end of the cylinder is also communicated with an air source through an electromagnetic directional valve a; and the controller is respectively connected with the load sensor, the electromagnetic directional valve a and the electromagnetic directional valve b.
Furthermore, the baffle plate structure further comprises reinforcing ribs, wherein the reinforcing ribs are arranged on the outer side faces of the left baffle plate and the right baffle plate and are respectively connected with the left baffle plate, the right baffle plate and the connecting plate.
Further, still include more than 2 anti-skidding baffles, two liang of parallel arrangement of anti-skidding baffle are on the arcwall face of left arc briquetting and right arc briquetting.
Furthermore, the arc-shaped surface of the left arc-shaped pressing block or the right arc-shaped pressing block is provided with a groove matched with the outer circle of the corrugated pipe.
Further, the moving mechanism comprises: the motor is connected with the ball screw through the coupler, the sliding block is connected with the ball screw in a threaded fit mode, the limit switch a and the limit switch b are arranged at two ends of the ball screw, the power supply is connected with the controller, and the controller is connected with the motor, the limit switch a and the limit switch b respectively.
Furthermore, the device also comprises a ball screw supporting seat, and two ends of the ball screw supporting seat are respectively connected with two ends of a ball screw.
Furthermore, the device also comprises a fixed bearing plate, and the motor, the coupler, the limit switch a and the limit switch b are all arranged on the fixed bearing plate.
Furthermore, the device also comprises a guide rail which is arranged below the guide rail and used for supporting the sliding block.
The utility model has the advantages that:
the utility model discloses an adopt the wearing and tearing bellows inner wall of test prestressing tendons to carry out the wearability test of bellows, because prestressing tendons stretch out after penetrating the bellows for a root in the operating mode, the bellows is inside to be grouted again after the stretch-draw is accomplished, carry out the wearability test of bellows to the bellows inner wall and more approach the actual application operating mode of bellows; the adopted sample is a sample strip of the corrugated pipe instead of a sample section of the corrugated pipe, the sample strip has the advantages that the stress of the inner wall of the corrugated pipe and the prestressed tendons is more favorably realized, and particularly, a large clamp or large equipment does not need to be designed for the large-size corrugated pipe, so that the device has stronger adaptability; the sample of adoption is the spline of bellows, and the sample section of non-bellows, and the advantage lies in the sample section that uses the bellows in the application of force, because the pliability of bellows, can produce certain deformation, and the quantitative power of applying is absorbed by the deflection of bellows, and does not act on the test position completely, has certain influence to the measuring result, the utility model discloses a cut off the bellows spline, not only solved the bellows and warp the influence to the test, make moreover apply quantitative power and act on prestressing tendons and the bellows spline that awaits measuring completely, combine to use automated control's mode to make prestressing force and the clamp force between the bellows spline that awaits measuring invariable, make the test result more accurate and accurate.
Drawings
Fig. 1 is a schematic view of the overall structure of a device for testing the wear resistance of a corrugated pipe according to the present invention;
fig. 2 is a schematic view of a moving mechanism of the device for testing the abrasion resistance of the corrugated pipe according to the present invention;
fig. 3 is a schematic view of a clamping mechanism of the device for testing the abrasion resistance of a corrugated pipe according to the present invention;
FIG. 4 is a cross-sectional view of a bellows wear resistance testing device for testing the bellows to be tested arranged on a left arc-shaped pressing block or a right arc-shaped pressing block
Fig. 5 is a schematic view of a pneumatic connection of a clamping mechanism of the device for testing the wear resistance of a corrugated pipe according to the present invention;
fig. 6 is a schematic view of a pneumatic control of a clamping mechanism of the device for testing abrasion resistance of corrugated pipes according to the present invention;
in the figures, 1-the moving mechanism; 2-a clamping mechanism; 3-prestressed tendons; 11-a coupling; 12-ball screw; 15-a guide rail; 13-ball screw supporting seat; 14-a stationary support plate; 16-a slide block; 21-a motor; 22-a controller; 23-a driver; 24-a power supply; 25-limit switch a; 26-limit switch b; 31-a connecting plate; 32-left baffle; 33-reinforcing ribs; 34-a load cell; 35-a limit guide rod; 36-left arc-shaped pressing block; 37-antiskid baffle; 38-corrugated tube splines; 39-right arc-shaped pressing block; 40-a right baffle; 41-flange plate; 42-a floating joint; 43-cylinder; 44-cylinder mount; 51-a gas source; 52-electromagnetic directional valve a; 53-electromagnetic directional valve b; 54-throttle valve.
Detailed Description
In order to explain the technical content, the achieved objects and the effects of the present invention in detail, the following description is made in conjunction with the embodiments and the accompanying drawings.
Example 1:
a corrugated pipe wear resistance testing device comprises a moving mechanism 1, a clamping mechanism 2, a prestressed tendon 3 and a tensioning mechanism (not shown in the figure); the whole clamping mechanism 2 is arranged on the moving mechanism 1, the clamping mechanism 2 is used for clamping the corrugated pipe spline 38 and is abutted to the prestressed tendons 3, the prestressed tendons 3 are tensioned on the tensioning mechanism, and the tensioning direction of the prestressed tendons 3 is parallel to the direction of the clamping mechanism 2 moving on the moving mechanism 1.
The method for testing the wear resistance of the corrugated pipe by using the corrugated pipe wear resistance testing device comprises the following steps:
step 1: cutting a sample strip 38 of the corrugated pipe to be tested from the corrugated pipe;
step 2: selecting a position in contact with the prestressed tendon 3 on the to-be-measured corrugated pipe spline 38, marking and recording the position, and measuring and recording the wall thickness of the to-be-measured corrugated pipe spline 38 at the position and the mass of the to-be-measured corrugated pipe spline 38;
and step 3: installing the spline 38 of the corrugated pipe to be tested on the clamping mechanism 2;
and 4, step 4: taking the prestressed tendons 3 in a tensioning state as positioning, and tangency is performed on the inner side surfaces of the corrugated pipe splines 38 to be tested on the clamping mechanism 2 and the prestressed tendons 3;
and 5: starting the moving mechanism 1 to enable the clamping mechanism 2 arranged on the moving mechanism 1 to move repeatedly along the tensioning direction of the prestressed tendon 3;
step 6: after the test is completed according to the test time, the moving mechanism 1 stops working, the corrugated pipe spline 38 to be tested is detached from the clamping mechanism 2, the residual wall thickness of the marked position on the corrugated pipe spline 38 to be tested is measured and recorded, and the quality of each corrugated pipe spline 38 to be tested after the test is simultaneously measured;
and 7: the wear resistance of the corrugated pipe is evaluated by measuring the wall thickness and the quality of the pipe before and after the test.
The utility model discloses a sample be the spline of bellows, and the sample section of non-bellows, the advantage that adopts the spline lies in more doing benefit to the atress of bellows inner wall and prestressing tendons 3, especially also need not design great anchor clamps or great equipment to the bellows of big specification to embodied the utility model discloses the stronger adaptability of device.
Example 2
On the basis of the above embodiment, the clamping mechanism 2 includes: the device comprises a connecting plate 31, a left baffle plate 32, a load sensor 34, a limiting guide rod 35, a left arc-shaped pressing block 36, a right arc-shaped pressing block 39, a right baffle plate 40 and a constant force mechanism, wherein the bottom end of the left baffle plate 32 and the bottom end of the right baffle plate 40 are vertically fixed on the connecting plate 31, the limiting guide rod 35 is arranged in parallel to the connecting plate 31, and two ends of the limiting guide rod are respectively fixed on the left baffle plate 32 and the right baffle plate 40; the left arc-shaped pressing block 36 and the right arc-shaped pressing block 39 are slidably arranged on the limiting guide rod 35, the arc surfaces of the left arc-shaped pressing block 36 and the right arc-shaped pressing block 39 are opposite and are abutted against the prestressed tendon 3, and the arc surfaces are used for clamping the corrugated pipe spline 38; one end of the load sensor 34 is fixed on the left baffle plate, and the other end of the load sensor is opposite to the left arc-shaped pressing block 36; the right arc-shaped pressing block 39 is connected with the constant force mechanism.
Example 3
On the basis of the above embodiment, the constant force mechanism includes the flange 41, the floating joint 42, the cylinder 43, the cylinder mounting seat 44, the air source 51, the electromagnetic directional valve a52, the electromagnetic directional valve b53, the throttle valve 54 and the controller 22; one end of the flange plate 41 is connected with the right arc-shaped pressing block 39, the other end of the flange plate is connected with the air cylinder 43 through the floating joint 42, the air cylinder 43 is installed on the air cylinder installation seat 44, and the air cylinder installation seat 44 is fixed on the connecting plate 31; the air source 51 is sequentially connected with an electromagnetic directional valve a52, an electromagnetic directional valve b53 and a throttle valve 54 in series and is finally communicated with one end of the air cylinder 43; the other end of the air cylinder 43 is also communicated with an air source 51 through an electromagnetic directional valve a 52; the controller 22 is connected to the load sensor 34, the solenoid directional valve a52, and the solenoid directional valve b53, respectively.
Example 4
On the basis of the above embodiment, the structure further comprises a reinforcing rib 33, wherein the reinforcing rib 33 is arranged on the outer side surface of the left baffle plate 32 and the outer side surface of the right baffle plate 40, and is respectively connected with the left baffle plate 32, the right baffle plate 40 and the connecting plate 31. The device is used for enhancing the rigidity of the device and improving the stability of measurement.
Example 5
On the basis of the above embodiment, the anti-skid device further comprises more than 2 anti-skid baffles 37, and every two anti-skid baffles 37 are arranged on the arc-shaped surfaces of the left arc-shaped pressing block 36 and the right arc-shaped pressing block 39 in parallel. For securing the spline 38 against movement in the direction of the tendon 3.
Example 6
On the basis of the above embodiment, the arc-shaped surface of the left arc-shaped pressing block 36 or the right arc-shaped pressing block 39 is provided with a groove matched with the outer circle of the corrugated pipe 38. The matching error of the left arc-shaped pressing block 36 or the right arc-shaped pressing block 39 and the outer circle of the corrugated pipe 38 is reduced, and the stability and the accuracy of measurement are improved.
Example 7
On the basis of the above embodiment, the moving mechanism 1 includes: shaft coupling 11, ball screw 12, slider 16, motor 21, controller 22, power 24, limit switch a25 and limit switch b26, motor 21 passes through shaft coupling 11 and connects ball screw 12, and slider 16 is connected with ball screw 12 screw-thread fit, limit switch a25 and limit switch b26 set up the both ends at ball screw 12, power 24 connection director 22, motor 21, limit switch a25 and limit switch b26 are connected respectively to controller 22.
The controller 22 controls the slider 16 to repeatedly slide along the ball screw 12, the limit switch a25 and the limit switch b26 are arranged at two ends of the ball screw 12, the position of the slider 16 is sensed, when the slider touches one of the limit switch a25 or the limit switch b26, the controller 22 is triggered to send a control signal, the motor 21 is controlled to reversely rotate so as to drive the ball screw 12 to reversely rotate, the slider 16 reversely slides, when the slider slides to touch one of the limit switch a25 or the limit switch b26 again, the motor 21 is triggered to reversely rotate again so as to drive the ball screw 12 to reversely rotate, and the slider 16 reversely slides again, so that the slider 16 repeatedly slides along the ball screw 12. Note that, in the present embodiment, the controller 22 is a controller that integrates a driving function.
Further, when the controller does not integrate the driving function, the motor 21 is connected to the controller 22 and the power supply 24 through the driver 23.
Example 8
On the basis of the above embodiment, the ball screw support base 13 is further included, and two ends of the ball screw support base 13 are respectively connected with two ends of the ball screw 12.
Example 9
On the basis of the above embodiment, the device further comprises a fixed support plate 14, and the motor 21, the coupler 11, the limit switch a25 and the limit switch b26 are all mounted on the fixed support plate 14. The stability of the measurement is improved by the effect of the fixing support plate 14.
Example 10
On the basis of the above embodiment, the device further comprises a guide rail 15, which is arranged below the guide rail 15 and is used for supporting the slider 16.
Example 11
The method for testing the wear resistance of the corrugated pipe by using the device for testing the wear resistance of the corrugated pipe comprises the following steps:
1. cutting two corrugated pipe splines 38 to be measured from the corrugated pipe;
2. selecting N (N is an integer) positions which are contacted with the prestressed tendons 3 on each corrugated pipe spline 38 to be measured, marking and recording the positions, and measuring and recording the wall thickness of the corrugated pipe spline 38 to be measured at the positions;
3. measuring the mass of each corrugated pipe spline 38 to be measured;
4. respectively installing two to-be-tested corrugated pipe splines 38 on the left arc-shaped pressing block 36 and the right arc-shaped pressing block 39, and respectively screwing the anti-skidding baffle plates 37 on the two sides of the left arc-shaped pressing block 36 and the right arc-shaped pressing block 39;
5. taking the prestressed tendon 3 in a tensioning state as a positioning part, and enabling the inner side surface of the corrugated pipe spline 38 to be tested on the left arc-shaped pressing block 36 to be tangent to the prestressed tendon 3;
6. after the throttle valve 54 is adjusted, the control program of the clamping mechanism 2 is started, the electromagnetic directional valve a52 is powered off, the valve a is opened (the valve B is closed), meanwhile, the electromagnetic directional valve B53 is powered off, the valve C is opened, the control cylinder 43 pushes the whole of the corrugated pipe spline 38 to be tested, the right arc-shaped pressing block 39, the flange 41 and the floating joint 42 on the other side to move along the direction of the limiting guide rod 35, because the centers of the left arc-shaped pressing block 36, the right arc-shaped pressing block 39, the flange 41, the floating joint 42 and the cylinder of the cylinder 43 are on a straight line, the two corrugated pipe splines 38 to be tested can slowly clamp the prestressed ribs 3 until the load sensor 34 reaches a set pressure value, the electromagnetic directional valve a52 is powered off, the valve a is opened (the valve B is closed), and meanwhile, the electromagnetic directional valve B53 is powered on. When the pressure of the load sensor 34 is lower than the set value, the electromagnetic directional valve a52 is de-energized, and the valve A is opened (the valve B is closed); meanwhile, the electromagnetic directional valve b53 loses power, and the valve C is opened; when the pressure of the load sensor 34 reaches a set value, the electromagnetic directional valve a52 is de-energized, the valve A is opened (the valve B is closed), meanwhile, the electromagnetic directional valve B53 is energized, and the valve C is closed; and closing or opening the valve of the electromagnetic directional valve by taking the pressure value of the load sensor 34 as judgment, so that the clamping force of the spline 38 of the corrugated pipe to be tested on the prestressed tendon 3 is constant.
7. The limit switch a25 and the limit switch b26 of the moving mechanism 1 are fixed to limit the displacement of the clamping mechanism 2.
8. The control program of the moving mechanism 1 is started, and the limit switch a25 and the limit switch b26 control the forward and reverse rotation of the motor 21, so that the slider 16 and the clamping mechanism 2 are reciprocated at a constant speed as a whole.
9. After the test is completed according to the test time, the moving mechanism 1 stops working, the electromagnetic directional valve a52 is powered on, the valve B is opened (the valve A is closed), the electromagnetic directional valve B53 is powered off, the valve C is opened, and the cylinder returns.
10. And after the cylinder returns, immediately detaching the to-be-tested corrugated pipe spline 38 from the device, immediately measuring the residual wall thickness of the marked position on the to-be-tested corrugated pipe spline 38 before testing, recording, and simultaneously measuring the quality of each to-be-tested corrugated pipe spline 38 after testing.
11. The wear resistance test of the corrugated pipe is realized by measuring the wall thickness and the mass of the pipe before and after the test.
The utility model adopts the testing prestressed tendon 3 to wear the inner wall of the corrugated pipe to test the wear resistance of the corrugated pipe, because the prestressed tendon 3 in the actual working condition is stretched after penetrating the corrugated pipe, the corrugated pipe is grouted again after the stretching is finished, and the wear resistance of the corrugated pipe on the inner wall of the corrugated pipe is tested to be closer to the actual application working condition of the corrugated pipe; the adopted sample is a sample strip of the corrugated pipe instead of a sample section of the corrugated pipe, the sample strip has the advantages that the stress of the inner wall of the corrugated pipe and the prestressed tendons 3 is more favorably realized, and particularly, a large clamp or large equipment does not need to be designed for the large-sized corrugated pipe, so that the device has stronger adaptability; the sample of adoption is the spline of bellows, and the sample section of bellows not, the advantage lies in the sample section that uses the bellows in the application of force, because the pliability of bellows, can produce certain deformation, the quantitative power of applying is absorbed by the deflection of bellows, and not the complete action is in the test position, there is certain influence to the measuring result, the utility model discloses a cut bellows spline 38, not only solved the bellows and warp the influence to the test, and make and apply quantitative power and act on prestressing tendons 3 and the bellows spline 38 that awaits measuring completely, the mode that combines to use automated control makes prestressing force and the clamp force between the bellows spline 38 that awaits measuring invariable, make the test result more accurate and accurate.
It should be noted that bellows wearability testing arrangement does not confine the wearability test of bellows to, accessible change left arc briquetting 36 and right arc briquetting 39 shape or size, change friction organism prestressing tendons 3 back, and this device also can be used for the wearability test of flat, the circular pipeline such as of other different specifications, or the wearability test of other heterotypic products.
Although the invention has been described in detail and with reference to specific embodiments thereof, it will be apparent to one skilled in the art that modifications and improvements can be made thereto. Therefore, such modifications and improvements are intended to be within the scope of the invention as claimed.
Claims (10)
1. The utility model provides a bellows wearability testing arrangement which characterized in that: the device comprises a moving mechanism, a clamping mechanism, a prestressed tendon and a tensioning mechanism; the clamping mechanism is integrally arranged on the moving mechanism and used for clamping a corrugated pipe spline and is abutted to the prestressed tendons, the prestressed tendons are stretched on the stretching mechanism, and the stretching direction of the prestressed tendons is parallel to the moving direction of the clamping mechanism on the moving mechanism.
2. The abrasion resistance test device for the corrugated pipe according to claim 1, wherein: the clamping mechanism includes: the load limiting device comprises a connecting plate, a left baffle, a load sensor, a limiting guide rod, a left arc-shaped pressing block, a right baffle and a constant force mechanism, wherein the bottom end of the left baffle and the bottom end of the right baffle are vertically fixed on the connecting plate; the left arc-shaped pressing block and the right arc-shaped pressing block are slidably arranged on the limiting guide rod, arc surfaces of the left arc-shaped pressing block and the right arc-shaped pressing block are opposite and are abutted against the prestressed tendons, and the arc surfaces are used for clamping corrugated pipe splines; one end of the load sensor is fixed on the left baffle plate, and the other end of the load sensor is opposite to the left arc-shaped pressing block; the right arc-shaped pressing block is connected with the constant force mechanism.
3. The abrasion resistance test device for the corrugated pipe according to claim 2, wherein: the constant force mechanism comprises a flange plate, a floating joint, a cylinder mounting seat, an air source, an electromagnetic directional valve a, an electromagnetic directional valve b, a throttle valve and a controller; one end of the flange plate is connected with the right arc-shaped pressing block, the other end of the flange plate is connected with the air cylinder through the floating joint, the air cylinder is installed on the air cylinder installation seat, and the air cylinder installation seat is fixed on the connecting plate; the air source is sequentially connected with the electromagnetic directional valve a, the electromagnetic directional valve b and the throttle valve in series and is finally communicated with one end of the air cylinder; the other end of the cylinder is also communicated with an air source through an electromagnetic directional valve a; and the controller is respectively connected with the load sensor, the electromagnetic directional valve a and the electromagnetic directional valve b.
4. The abrasion resistance test device for the corrugated pipe according to claim 2, wherein: the reinforcing rib is arranged on the outer side faces of the left baffle and the right baffle and is respectively connected with the left baffle, the right baffle and the connecting plate.
5. The abrasion resistance test device for the corrugated pipe according to claim 2, wherein: still include more than 2 anti-skidding baffles, two liang of parallel arrangement of anti-skidding baffle are on the arcwall face of left arc briquetting and right arc briquetting.
6. The abrasion resistance test device for the corrugated pipe according to claim 2, wherein: and the arc-shaped surface of the left arc-shaped pressing block or the right arc-shaped pressing block is provided with a groove matched with the outer circle of the corrugated pipe.
7. The abrasion resistance test device for the corrugated pipe according to claim 1, wherein: the moving mechanism comprises: the motor is connected with the ball screw through the coupler, the sliding block is connected with the ball screw in a threaded fit mode, the limit switch a and the limit switch b are arranged at two ends of the ball screw, the power supply is connected with the controller, and the controller is connected with the motor, the limit switch a and the limit switch b respectively.
8. The abrasion resistance test device for the corrugated pipe according to claim 7, wherein: the ball screw support is characterized by further comprising a ball screw support seat, and two ends of the ball screw support seat are respectively connected with two ends of a ball screw.
9. The abrasion resistance test device for the corrugated pipe according to claim 7, wherein: the motor, the coupler, the limit switch a and the limit switch b are all installed on the fixed supporting plate.
10. The abrasion resistance test device for the corrugated pipe according to claim 7, wherein: the sliding block support device further comprises a guide rail arranged below the guide rail and used for supporting the sliding block.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922209827.4U CN211318073U (en) | 2019-12-11 | 2019-12-11 | Corrugated pipe wear resistance testing device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922209827.4U CN211318073U (en) | 2019-12-11 | 2019-12-11 | Corrugated pipe wear resistance testing device |
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| CN211318073U true CN211318073U (en) | 2020-08-21 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114705543A (en) * | 2022-03-22 | 2022-07-05 | 杭州中祥通讯器材有限公司 | Non-metal pipe wear resistance detection system and detection method |
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2019
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114705543A (en) * | 2022-03-22 | 2022-07-05 | 杭州中祥通讯器材有限公司 | Non-metal pipe wear resistance detection system and detection method |
| CN114705543B (en) * | 2022-03-22 | 2022-10-18 | 杭州中祥通讯器材有限公司 | Non-metal pipe wear resistance detection system and detection method |
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