CN119269231B - A pipe stress testing device and a testing method thereof - Google Patents
A pipe stress testing device and a testing method thereof Download PDFInfo
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- CN119269231B CN119269231B CN202411797723.9A CN202411797723A CN119269231B CN 119269231 B CN119269231 B CN 119269231B CN 202411797723 A CN202411797723 A CN 202411797723A CN 119269231 B CN119269231 B CN 119269231B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/02—Details
- G01N3/04—Chucks
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/02—Details
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/30—Investigating strength properties of solid materials by application of mechanical stress by applying a single impulsive force, e.g. by falling weight
- G01N3/303—Investigating strength properties of solid materials by application of mechanical stress by applying a single impulsive force, e.g. by falling weight generated only by free-falling weight
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/32—Investigating strength properties of solid materials by application of mechanical stress by applying repeated or pulsating forces
- G01N3/34—Investigating strength properties of solid materials by application of mechanical stress by applying repeated or pulsating forces generated by mechanical means, e.g. hammer blows
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/003—Generation of the force
- G01N2203/0032—Generation of the force using mechanical means
- G01N2203/0033—Weight
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/02—Details not specific for a particular testing method
- G01N2203/026—Specifications of the specimen
- G01N2203/0262—Shape of the specimen
- G01N2203/0274—Tubular or ring-shaped specimens
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- Immunology (AREA)
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- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
本发明公开了一种管材受力测试装置及其测试方法，属于管材冲击力测试领域，包括：支撑底座和加工管材；冲击件，经支撑件与所述支撑侧板连接，以对所述加工管材进行冲击测试；所述冲击件包括：承重轴；驱动件，设置于所述支撑件上，且与所述冲击件连接，以带动冲击件上下移动进行冲击；配重件，设置有若干组，若干组所述配重件依次套设于所述承重轴上，以增加所述冲击件的重量；配重调节件；与所述支撑件连接，且与所述冲击件连接，以调节不同的配置进行冲击。本发明设置有冲击件、配重件和配重调节件，在冲击件在测试管材压力时，通过驱动配重调节件，来增加或减少配重件，使得冲击件具有不同的冲击力，从而形成对比实验。
The present invention discloses a pipe force testing device and a testing method thereof, which belongs to the field of pipe impact force testing, and includes: a support base and a processed pipe; an impact piece, which is connected to the supporting side plate via a support piece to perform an impact test on the processed pipe; the impact piece includes: a load-bearing shaft; a driving piece, which is arranged on the support piece and connected to the impact piece to drive the impact piece to move up and down for impact; a counterweight piece, which is provided with several groups, and several groups of the counterweight pieces are sequentially sleeved on the load-bearing shaft to increase the weight of the impact piece; a counterweight adjustment piece, which is connected to the support piece and the impact piece to adjust different configurations for impact. The present invention is provided with an impact piece, a counterweight piece and a counterweight adjustment piece. When the impact piece is testing the pipe pressure, the counterweight adjustment piece is driven to increase or decrease the counterweight piece, so that the impact piece has different impact forces, thereby forming a comparative experiment.
Description
Technical Field
The invention relates to pipe impact force testing, in particular to a pipe stress testing device and a testing method thereof.
Background
The pipe is the material used for making the pipe fitting. Different pipes are needed for different pipes, and the quality of the pipes is directly determined by the quality of the pipes. In order to enable the pipe to be used normally in a severe environment, the quality of the pipe needs to be strictly detected before leaving a factory, and the pipe strength detection is the most important ring for controlling the quality of the pipe. Testing the force capability of tubing from multiple aspects is critical to ensuring the safety and stability of tubing as tubing is often subject to external and internal pressures when transporting fluids or subjected to external loads.
In the prior art, in the test of the impact strength of the pipe, the impact strength can be changed by only impacting a plurality of impact blocks with different weights, the test function is single, the replacement of the impact blocks with different weights is troublesome, meanwhile, the adaptation adjustment can not be carried out according to the use scene and the impact resistance requirement of the pipe, and the test result is not comprehensive enough.
In view of the above-mentioned shortcomings, the invention improves and optimizes the impact strength based on the prior art, and develops a pipe stress testing device and a testing method thereof.
Disclosure of Invention
In order to solve the problems, the invention adopts the following technical scheme.
The pipe stress testing device comprises a supporting base and a processed pipe, and further comprises:
The support side plates are arranged at two ends of the support base;
the clamping pieces are provided with two groups, and the two groups of clamping pieces are sequentially arranged on the supporting base to clamp the processed pipe;
The second adjusting piece is arranged on the supporting base, connected with the supporting side plate and the clamping piece and used for changing the position of the processed pipe;
the impact piece is connected with the support side plate through the support piece so as to perform impact test on the processed pipe, and comprises a bearing shaft;
The driving piece is arranged on the supporting piece and connected with the impact piece to drive the impact piece to move up and down for impact;
The weight parts are provided with a plurality of groups, and the weight parts of the groups are sequentially sleeved on the bearing shaft so as to increase the weight of the impact part;
the counterweight adjusting piece is connected with the supporting piece and the impact piece to adjust different configurations for impact, and comprises:
the second cylinders are provided with four groups, and the circumferences of the four groups of second cylinders are uniformly arranged on the supporting piece;
The fixed ring is arranged on the output shaft of the second cylinder;
The first annular groove is formed in the top end of the fixed ring;
the bottom end of the large gear slides in the first annular groove;
The second square through hole is formed in the center of the large gear and matched with the weight piece and the supporting piece.
Further, the support includes:
the mountain-shaped supporting plate is arranged on the supporting side plate;
one end of the second side plate is connected with one end of the mountain-shaped supporting plate far away from the supporting side plate;
one end of the third limiting side plate is connected with the middle of the mountain-shaped supporting plate;
One end of the reinforcing rib is connected with the second side plate, and the other end of the reinforcing rib is connected with the mountain-shaped supporting plate;
the bottom end of the top plate is connected with the second side plate and the third limit side plate;
the first square through hole is arranged at the center of the top plate and matched with the weight piece.
Further, the impact member includes:
the first chute is arranged on the third limiting side plate;
the two ends of the connecting plate slide in the first sliding groove, and the top end of the connecting plate is connected with the bearing shaft;
the top end of the impact block is connected with the bottom end of the connecting plate, and the bottom end of the impact block is matched with the processed pipe for impact;
and the placing disc is sleeved on the bearing shaft to place the weight balance piece.
Further, the driving member includes:
the first connecting block is arranged at the bottom end of the top plate;
One end of the connecting rope is fixedly connected with the first connecting block;
the connecting lug is arranged on the connecting plate, and the connecting rope passes through the connecting lug;
the steering piece is arranged on the top plate and matched with the connecting rope so as to change the direction of the connecting rope;
The supporting block is arranged on the top plate;
the rotating shaft is rotationally connected with the supporting block and is fixedly connected with the other end of the connecting rope;
The second motor is arranged on the top plate, and the output end of the second motor is connected with the rotating shaft;
the regulation and control module is used for being electrically connected with the second motor and regulating the rotating speed of the second motor, wherein when the regulation and control module is specifically regulated, the regulation and control module specifically comprises the following steps of:
the method comprises the steps of setting initial parameters of a second motor, determining a target position of an impact piece, collecting the current position of the impact piece in real time through a position sensor, preprocessing collected data, comparing the current position of the impact piece with the target position, and calculating a position error;
The method comprises the steps of converting an output signal into a control command of a second motor, driving the second motor to operate according to the control command so as to control the position of an impact piece, continuously collecting the real-time position of the impact piece in the control process, feeding the real-time position of the impact piece back to a regulation and control module so as to realize closed-loop control, judging whether the impact piece reaches a target position, and stopping the second motor and ending the control process if the impact piece reaches an ending condition.
Further, the steering member includes:
the first pulley is arranged at the bottom end of the top plate and is in fit connection with the connecting rope;
the second pulley is arranged at the top end of the top plate, and the connecting rope penetrates through the top plate to be connected with the second pulley in a fitting mode.
Further, the weight includes:
The square balancing weight is sleeved on the bearing shaft and matched with the first square through hole and the second square through hole;
the annular balancing weight is connected with the bottom end of the square balancing weight;
the second annular groove is formed in the top end of the square balancing weight;
And the limiting ring block is arranged at the bottom end of the annular balancing weight and is matched and clamped with the second annular groove on the other group of balancing weight pieces.
Further, the weight adjuster further includes:
the placing plate is connected with the fixed circular ring;
the first motor is arranged on the placing plate;
and the second gear is meshed with the large gear and is connected with the output end of the first motor.
Further, the clamping member includes:
the sliding block is arranged on the supporting base;
the first supporting plate is arranged on the sliding block;
Arc clamp, set up in the first backup pad, in order to make things convenient for the centre gripping processing tubular product.
Further, the second adjusting member includes:
The sliding rail is arranged on the supporting base, and the sliding block slides along the sliding rail;
the first cylinder is arranged on the supporting side plate, and the output end of the first cylinder is connected with the sliding block;
the two ends of the limiting rod are connected with the supporting side plates and are in sliding connection with the sliding blocks so as to limit the positions of the sliding blocks;
The connecting window is arranged on the supporting side plate and matched with the processing pipe to move left and right so as to impact different positions.
The invention also provides a testing method suitable for the pipe stress testing device, which comprises the following steps:
s1, determining a machining position, namely adjusting the position of an arc clamp, and placing a machined pipe on the arc clamp;
S2, selecting impact force, namely driving the fixed circular ring to move upwards by starting the second air cylinder, driving the large gear to move upwards through the first annular groove, and placing the large gear at the position of the appointed counterweight part, wherein a second square through hole in the large gear corresponds to the position of the annular counterweight block of the appointed counterweight part, starting the first motor at the moment, driving the second gear to rotate, driving the large gear to rotate, stopping rotating after 90 degrees of rotation, and enabling the large gear to be attached to the bottom end of the square counterweight block on the appointed counterweight part, so that the counterweight part is supported, and placing the counterweight parts below the appointed counterweight part on the placing disc to perform impact test together with the bearing shaft;
S3, adjusting and resetting, namely driving the rotating shaft to rotate by starting the second motor, and driving the connecting lug to move upwards by driving the connecting lug to pass through the second pulley and then the top plate and then the first pulley as the rotating shaft is fixedly connected with one end of the connecting rope, so that the connecting rope is driven to wind the rotating shaft to rotate when the rotating shaft rotates, thereby pulling the other end of the connecting rope;
S4, repeatedly impacting, namely performing stamping experiments on the processed pipe through impact pieces with different weights, so that the impact pressure resistance of the processed pipe is improved.
Compared with the prior art, the impact test device has the beneficial effects that the clamping piece is arranged to clamp the processed pipe, the second adjusting piece is arranged to change the position of the clamping piece, so that the position of the processed pipe is changed, the impact test device can perform impact test on different positions of the processed pipe, the impact piece, the weight piece and the weight adjusting piece are arranged, and when the impact piece is used for testing the pressure of the pipe, the weight piece is increased or reduced by driving the weight adjusting piece, so that the impact piece has different impact forces, and a comparison experiment is formed. The driving piece is arranged to drive the impact piece to move, and the driving piece can enable the impact piece to always keep the same impact height to move downwards, so that experimental variables are controlled, and the test experiment is better controlled.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It is evident that the drawings in the following description are only some embodiments of the present invention and that other drawings may be obtained from these drawings without inventive effort for a person of ordinary skill in the art.
FIG. 1 is a first perspective view of the present invention;
FIG. 2 is a second perspective view of the present invention;
FIG. 3 is a first partial perspective view of the present invention;
FIG. 4 is a second partial perspective view of the present invention;
FIG. 5 is a first cross-sectional view of the present invention;
fig. 6 is an enlarged view at a in fig. 1;
FIG. 7 is a perspective view of a weight adjustment member and a weight member of the present invention;
FIG. 8 is a partial exploded view of a weight adjuster of the present invention;
FIG. 9 is a first partial exploded view of the weight of the present invention;
FIG. 10 is a second partial exploded view of the weight of the present invention;
fig. 11 is a perspective view of a clip according to the present invention.
The reference numerals in the figures illustrate:
1. The device comprises a supporting base, 101, supporting side plates, 102, a connecting window, 2, clamping pieces, 201, a first cylinder, 202, a sliding rail, 203, a limit rod, 204, a sliding block, 205, a first supporting plate, 206, an arc clamp, 3, a supporting piece, 301, a mountain-shaped supporting plate, 302, a second side plate, 303, a reinforcing rib, 304, a third limit side plate, 305, a top plate, 306, a first square through hole, 4, a weight adjusting piece, 401, a second cylinder, 402, a fixed circular ring, 403, a first annular groove, 404, a large gear, 405, a second square through hole, 406, a second gear, 407, a placing plate, 408, a first motor, 5, an impact piece, 501, an impact piece, 502, a connecting plate, 503, a bearing shaft, 504, a placing disc, 505, a first sliding groove, 6, a processed pipe, 701, a connecting lug, 702, a first connecting block, 703, a connecting rope, 704, a first pulley, 705, a second pulley, 706, a supporting block, a rotating shaft, 708, a second motor, 8, a weight, 801, a second weight, a ring 804, a ring-shaped annular groove 803, and a limit groove.
Detailed Description
The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention, and it is apparent that the described embodiments are only some embodiments of the present invention, but not all embodiments, and all other embodiments obtained by those skilled in the art without making any inventive effort based on the embodiments of the present invention are within the scope of the present invention.
As shown in fig. 1 to 2, a pipe stress testing device comprises a supporting base 1 and a processed pipe 6; the support base comprises a support base 1 and support side plates 101, wherein the support side plates are arranged at two ends of the support base 1; the clamping pieces 2 are provided with two groups, and the two groups of clamping pieces 2 are sequentially arranged on the supporting base 1 so as to clamp the processing pipe 6; the device comprises a support base 1, a second adjusting piece, a counterweight piece 5, a counterweight adjusting piece 4, a second cylinder 401, a fixing ring 402, a first ring groove 403, a second ring groove 404, a square groove 404 and a plurality of ring grooves, wherein the second adjusting piece is arranged on the support base 1 and is connected with the support side plate 101 and the clamping piece 2 to change the position of the processed pipe 6, the impact piece 5 is connected with the support side plate 101 through the support piece 3 to perform impact test on the processed pipe 6, the impact piece 5 comprises a bearing shaft 503, a driving piece is arranged on the support piece 3 and is connected with the impact piece 5 to drive the impact piece 5 to move up and down, the counterweight piece 8 is provided with a plurality of groups, the counterweight piece 8 is sequentially sleeved on the bearing shaft 503 to increase the weight of the impact piece 5, the counterweight adjusting piece 4 is connected with the support piece 3 and is connected with the impact piece 5 to adjust different configurations, the counterweight adjusting piece 4 comprises a second cylinder 401, four groups of second cylinders 401 are arranged on the support piece 3, the circumferences of the second cylinders 401 are uniformly arranged on the support piece 3, the fixing ring 402 are arranged on the second cylinder 403 and are arranged on the second output shaft 403, the first ring groove 403 and the first ring groove 403 are matched with the second ring groove 404.
In the embodiment of the invention, the clamping piece 2 is arranged to clamp the processed pipe 6, the second adjusting piece is arranged to change the position of the clamping piece 2, so that the position of the processed pipe 6 is changed, the equipment can perform impact test on different positions of the processed pipe 6, the impact piece 5, the counterweight piece 8 and the counterweight adjusting piece 4 are arranged, and when the impact piece 5 is used for testing the pipe pressure, the counterweight piece 8 is increased or reduced by driving the counterweight adjusting piece 4, so that the impact piece 5 has different impact forces, and a comparison experiment is formed. The driving piece is arranged to drive the impact piece 5 to move, and the driving piece can enable the impact piece 5 to always keep the same impact height to move downwards, so that experimental variables are controlled, and the test experiment is better controlled.
As shown in fig. 2 to 3, the supporting member 3 includes a mountain-shaped supporting plate 301 disposed on the supporting side plate 101, a second side plate 302 having one end connected to one end of the mountain-shaped supporting plate 301 remote from the supporting side plate 101, a third limit side plate 304 having one end connected to the middle of the mountain-shaped supporting plate 301, a reinforcing rib 303 having one end connected to the second side plate 302 and the other end connected to the mountain-shaped supporting plate 301, a top plate 305 having a bottom end connected to the second side plate 302 and the third limit side plate 304, and a first square through hole 306 opened at the center of the top plate 305 and engaged with the weight 8.
As shown in fig. 4 to 7, the impact member 5 includes a first chute 505 disposed on the third limiting side plate 304, a connecting plate 502, two ends of the connecting plate 502 sliding in the first chute 505, and the top end of the connecting plate 502 being connected to the bearing shaft 503, an impact block 501, the top end of which is connected to the bottom end of the connecting plate 502, and the bottom end of the impact block 501 being impacted with the processed pipe 6 in a matching manner, and a placement disc 504 sleeved on the bearing shaft 503 to place the weight 8.
In the embodiment of the invention, the connecting plate 502 is pulled to the bottom end of the top plate 305 by the driving piece, and the connecting plate 502 slides downwards along the first chute 505 after free release, so as to drive the impact block 501 to move downwards and finally impact the processed pipe 6 to finish the pressure test;
Wherein, the cooperation of mountain type backup pad 301, second curb plate 302 and strengthening rib 303 is provided for the structure is more stable.
As shown in fig. 4 to 7, the driving member includes a first connection block 702 disposed at the bottom end of the top plate 305, a connection rope 703 having one end fixedly connected to the first connection block 702, a connection lug 701 disposed on the connection plate 502 and through which the connection rope 703 passes, a steering member disposed on the top plate 305 and cooperating with the connection rope 703 to change the direction of the connection rope 703, a support block 706 disposed on the top plate 305, a rotation shaft 707 rotatably connected to the support block 706 and fixedly connected to the other end of the connection rope 703, and a second motor 708 disposed on the top plate 305 and having an output end connected to the rotation shaft 707.
As shown in fig. 4 to 7, the steering member comprises a first pulley 704 disposed at the bottom end of the top plate 305 and connected to the connecting rope 703 in a fitting manner, and a second pulley 705 disposed at the top end of the top plate 305, wherein the connecting rope 703 passes through the top plate 305 and is connected to the second pulley 705 in a fitting manner.
In the embodiment of the invention, the second motor 708 is started to drive the rotating shaft 707 to rotate, and as the rotating shaft 707 is fixedly connected with one end of the connecting rope 703, the rotating shaft 707 can drive the connecting rope 703 to rotate around the rotating shaft 707 when rotating, thereby pulling the other end of the connecting rope 703, and as the connecting rope 703 passes through the connecting lug 701 in the middle, the connecting rope 703 passes through the second pulley 705, then passes through the top plate 305 and then passes through the first pulley 704, finally drives the connecting lug 701 to move upwards, thereby driving the connecting plate 502 to move upwards, and when moving to the uppermost end, the second motor 708 is closed, so that the connecting plate 502 slides downwards by self gravity, thereby driving the connecting rope 703 to move reversely, driving the rotating shaft 707 to move reversely, and thus driving the connecting rope 703 to stretch for the next second motor 708 to form a foundation.
The connecting plate 502 is provided with two connecting ropes 703 which respectively act on two ends of the connecting plate 502 so as to ensure the moving stability of the connecting plate 502, and the connecting plate is provided with a first pulley 704 and a second pulley 705 so that the direction of the connecting ropes 703 is changed to be matched with the second motor 708 for use while the moving stress of the connecting ropes 703 is not influenced, and the connecting plate 502 is pulled to move by the connecting ropes 703 so that the stress of the connecting plate 502 is more balanced, and meanwhile, free falling is avoided due to the weight of the connecting ropes 703 when the tensile force of the connecting ropes 703 is not generated, so that the experimental result is convenient for staff to analyze.
A regulation module is provided for electrically connecting with the second motor 708 and regulating the rotation speed of the second motor 708, wherein when specifically regulated, specifically comprises the following steps:
setting initial parameters of the second motor 708, determining a target position of the impact member 5, collecting a current position of the impact member 5 in real time through a position sensor, preprocessing collected data, comparing the current position of the impact member 5 with the target position, calculating a position error, and calculating a control output signal according to the position error, wherein a calculation formula of the control output signal is as follows:
;
Wherein, Indicating the control output signal, which is timeFor driving a second motor (708) to adjust the position of the impact member (5); representing a position error, i.e. the difference between the current position of the impact member (5) and the target position; representing the proportional gain; a nonlinear adjustment coefficient representing a proportional term; Representing the integral gain; a nonlinear adjustment coefficient representing an integral term; representing an integral of the position error, which represents the accumulation of the position error from 0 to the current time t; representing differential gain; a nonlinear adjustment coefficient representing a differential term; representing the derivative of the position error, i.e. the rate of change of the position error over time; Representing the second derivative of the position error, i.e. the rate of change of the position error;
The control method comprises the steps of converting an output signal into a control command of a second motor 708, driving the second motor 708 to operate according to the control command so as to control the position of the impact piece 5, continuously collecting the real-time position of the impact piece 5 in the control process and feeding the real-time position back to a regulation and control module to realize closed-loop control, judging whether the impact piece 5 reaches a target position or not, and stopping the second motor 708 and ending the control process if an ending condition is reached.
As shown in fig. 8 to 11, the counterweight 8 includes a square counterweight 801 sleeved on the bearing shaft 503 and engaged with the first square through hole 306 and the second square through hole 405, an annular counterweight 803 connected to the bottom end of the square counterweight 801, a second annular groove 802 disposed at the top end of the square counterweight 801, and a limiting ring block 804 disposed at the bottom end of the annular counterweight 803 and engaged with the second annular groove 802 on the other set of counterweight 8.
In the embodiment of the invention, a plurality of weight pieces 8 are sleeved on the bearing shaft 503, and the plurality of weight pieces 8 are connected by the limit ring block 804 of the previous weight piece 8 and the second annular groove 802 of the next weight piece 8 in a matching way, so that the problem of unstable dumping after the weight pieces 8 are separated from the bearing shaft 503 is avoided.
As shown in fig. 8 to 11, the weight adjuster 4 further includes a placement plate 407 connected to the fixed ring 402, a first motor 408 disposed on the placement plate 407, and a second gear 406 meshed with the large gear 404 and connected to an output end of the first motor 408.
In the embodiment of the invention, a first square through hole 306 is formed in a top plate 305, so that a square balancing weight 801 in a balancing weight 8 can pass through the first square through hole 306, when the weight of an impact piece 5 needs to be increased, a second cylinder 401 is started to drive a fixed circular ring 402 to move upwards, so that a large gear 404 is driven to move upwards through a first annular groove 403, the large gear 404 moves to a position of a designated balancing weight 8, a second square through hole 405 in the large gear 404 corresponds to the position of an annular balancing weight 803 of the designated balancing weight 8, a first motor 408 is started at this time, the second gear 406 is driven to rotate, so that the large gear 404 is driven to rotate, and rotation is stopped after 90 degrees of rotation, at this time, the large gear 404 is attached to the bottom end of the square balancing weight 801 on the designated configuration piece, so that the balancing weight 8 under the designated balancing weight 8 has a supporting function is placed on a placement disc 504, and impact test is carried out together with a bearing shaft 503.
By changing the elongation of the second cylinder 401, different weights are changed, so that the full test of the processed pipe 6 is completed, wherein the position of the impact block 501 is always unchanged when the different weights are changed, so that the impact block is fixed when the impact block is impacted and the impact height is fixed, and only the different weights are different, so that the personnel can conveniently analyze test experimental data.
As shown in fig. 8 to 11, the clamping member 2 includes a sliding block 204 disposed on the support base 1, a first support plate 205 disposed on the sliding block 204, and an arc-shaped clip 206 disposed on the first support plate 205 to facilitate clamping the processed pipe 6.
As shown in fig. 8 to 11, the second adjusting member includes a sliding rail 202 disposed on the support base 1, and the sliding block 204 slides along the sliding rail 202, a first cylinder 201 disposed on the support side plate 101, and an output end of the first cylinder 201 is connected to the sliding block 204, a limit rod 203, two ends of which are connected to the support side plate 101 and are slidably connected to the sliding block 204 to limit a position of the sliding block 204, and a connection window 102, wherein the connection window 102 is opened on the support side plate 101 to move left and right in cooperation with the processed pipe 6, so as to impact different positions.
In the embodiment of the invention, the processed pipe 6 is placed on the arc clamps 206 so as to directly perform impact test, when the impact position needs to be changed, the first air cylinders 201 are required to be started to drive the sliding blocks 204 to slide along the sliding rails 202 so as to drive the first supporting plates 205 to move and finally drive the arc clamps 206 to move, the first air cylinders 201 on two sides are reversely started to drive the two arc clamps 206 to move to one side so as to drive the processed pipe 6 to move to one side, thus the impact test can be performed on the two ends of the processed pipe 6, and when the pipes with different lengths are tested, the positions between the two arc clamps 206 are simultaneously close to or far away by making the first air cylinders 201 on two sides move in the same direction so as to adapt to the processed pipe 6 with different lengths;
a connection window 102 is provided in the support side plate 101, so that the processing pipe 6 can pass through the connection window 102, thereby improving the adaptability to different processing pipes 6.
The working principle is that the first cylinder 201 is started to drive the sliding block 204 to slide along the sliding rail 202, so as to drive the first supporting plate 205 to move and finally drive the arc-shaped clamp 206 to move; so that the distance between the two arc clamps 206 matches the machined pipe 6 to be tested; then placing the processed pipe 6 on the arc clamp 206; the second motor 708 is started to drive the rotating shaft 707 to rotate, the rotating shaft 707 is fixedly connected with one end of the connecting rope 703, so that the rotating shaft 707 drives the connecting rope 703 to rotate around the rotating shaft 707 when rotating, the other end of the connecting rope 703 is pulled, the connecting rope 703 passes through the connecting lug 701 in the middle, and then passes through the second pulley 705 and then passes through the top plate 305, and finally drives the connecting lug 701 to move upwards, so as to drive the connecting plate 502 to move upwards, when the connecting plate moves to the uppermost end, the second motor 708 is closed, so that the connecting plate 502 is free of the limitation of the connecting rope 703 and slides downwards along the first chute 505, so as to drive the impact block 501 to move downwards, the connecting plate 502 simultaneously drives the bearing shaft 503 and the placing disc 504 to move downwards, and simultaneously adds the weight of the placing disc 504 to form the whole impact piece 5, and finally impacts the processing pipe 6 to finish the pressure test, and in order to change different weights to perform more accurate test experiments, when the impact block 501 is at the uppermost end, the second cylinder 401 is started to drive the fixed ring 402 to move upwards, so that the first cylinder 401 drives the large gear 403 to move upwards, and the large gear 408 moves upwards, and the large gear 8 moves to the large gear 404 is corresponding to the position of the large gear 404, and the large gear 404 is 8, and the position of the large gear 404 is designated position and the position 8, the second gear 406 is driven to rotate, so that the large gear 404 is driven to rotate, and the rotation is stopped after 90 degrees of rotation, at the moment, the large gear 404 is attached to the bottom end of the square balancing weight 801 on the designated configuration piece, so that the balancing weight 8 is supported, the balancing weights 8 below the designated balancing weight 8 are placed on the placing disc 504 and are subjected to impact test together with the bearing shaft 503, so that the weight of the impact test is changed, and meanwhile, the position of the impact block 501 from the processed pipe 6 is not increased or reduced, so that the variable of the test experiment is better controlled.
When pipe impact tests on the same processed pipe 6 at different positions are required, the first cylinders 201 are started to drive the sliding blocks 204 to slide along the sliding rails 202, so that the first supporting plates 205 are driven to move, the arc clamps 206 are finally driven to move, the first cylinders 201 on the two sides are started in the opposite directions, so that the two arc clamps 206 can be driven to move to one side, the processed pipe 6 is driven to move to one side, and impact tests can be carried out on the two ends of the processed pipe 6.
The above description is only a preferred embodiment of the present invention, but the scope of the present invention is not limited thereto. Any person skilled in the art, within the technical scope of the present disclosure, may apply to the present invention, and the technical solution and the improvement thereof are all covered by the protection scope of the present invention.
Claims (5)
1. The pipe stress testing device comprises a supporting base (1) and a processed pipe (6), and is characterized by further comprising:
support side plates (101) arranged at both ends of the support base (1);
the clamping pieces (2) are provided with two groups, and the two groups of clamping pieces (2) are sequentially arranged on the supporting base (1) so as to clamp the processing pipe (6);
The second adjusting piece is arranged on the supporting base (1) and is connected with the supporting side plate (101) and the clamping piece (2) so as to change the position of the processing pipe (6);
The impact piece (5) is connected with the supporting side plate (101) through the supporting piece (3) so as to perform impact test on the processed pipe (6), wherein the impact piece (5) comprises a bearing shaft (503);
the driving piece is arranged on the supporting piece (3) and is connected with the impact piece (5) so as to drive the impact piece (5) to move up and down to impact;
the weight parts (8) are provided with a plurality of groups, and the weight parts (8) of the groups are sequentially sleeved on the bearing shaft (503) so as to increase the weight of the impact part (5);
A weight adjusting member (4) connected to the supporting member (3) and connected to the impact member (5) to adjust different configurations for impact, the weight adjusting member (4) comprising:
The second air cylinders (401) are provided with four groups, and the four groups of second air cylinders (401) are uniformly arranged on the supporting piece (3);
A fixed ring (402) arranged on the output shaft of the second cylinder (401);
the first annular groove (403) is formed in the top end of the fixed ring (402);
A large gear (404), the bottom end of which slides in the first annular groove (403);
the second square through hole (405) is arranged at the center of the large gear (404) and is matched with the weight piece (8) and the supporting piece (3);
The support (3) comprises:
A mountain-shaped support plate (301) provided on the support side plate (101);
A second side plate (302) having one end connected to one end of the mountain-shaped support plate (301) remote from the support side plate (101);
One end of the third limiting side plate (304) is connected with the middle of the mountain-shaped supporting plate (301);
A reinforcing rib (303) having one end connected to the second side plate (302) and the other end connected to the mountain-shaped support plate (301);
The bottom end of the top plate (305) is connected with the second side plate (302) and the third limit side plate (304);
The first square through hole (306) is arranged at the center of the top plate (305) and is matched with the counterweight (8);
The impingement member (5) comprises:
The first chute (505) is arranged on the third limit side plate (304);
The two ends of the connecting plate (502) slide in the first sliding groove (505), and the top end of the connecting plate (502) is connected with the bearing shaft (503);
the top end of the impact block (501) is connected with the bottom end of the connecting plate (502), and the bottom end of the impact block (501) is matched with the processed pipe (6) for impact;
a placing disc (504) sleeved on the bearing shaft (503) for placing the counterweight (8);
the driving member includes:
The first connecting block (702) is arranged at the bottom end of the top plate (305);
one end of the connecting rope (703) is fixedly connected with the first connecting block (702);
A connecting lug (701) arranged on the connecting plate (502), and the connecting rope (703) passes through the connecting lug (701);
a steering member which is arranged on the top plate (305) and is matched with the connecting rope (703) so as to change the direction of the connecting rope (703);
a support block (706) provided on the top plate (305);
a rotating shaft (707) rotatably connected to the support block (706), and the rotating shaft (707) is fixedly connected to the other end of the connecting rope (703);
A second motor (708) disposed on the top plate (305), and an output end of the second motor (708) is connected to the rotation shaft (707);
The regulation and control module is used for being electrically connected with the second motor (708) and regulating the rotating speed of the second motor (708), wherein when the regulation and control module is specifically regulated, the regulation and control module specifically comprises the following steps of:
Setting initial parameters of a second motor (708), determining a target position of the impact member (5), collecting the current position of the impact member (5) in real time through a position sensor, preprocessing the collected data, comparing the current position of the impact member (5) with the target position, and calculating a position error;
The control method comprises the steps of converting an output signal into a control command of a second motor (708), driving the second motor (708) to operate according to the control command so as to control the position of an impact piece (5), continuously collecting the real-time position of the impact piece (5) in the control process, and feeding the real-time position back to a regulation and control module to realize closed-loop control, judging whether the impact piece (5) reaches a target position, stopping the second motor (708) and ending the control process if an ending condition is reached;
the steering member includes:
The first pulley (704) is arranged at the bottom end of the top plate (305) and is in fit connection with the connecting rope (703);
the second pulley (705) is arranged at the top end of the top plate (305), and the connecting rope (703) passes through the top plate (305) to be connected with the second pulley (705) in a bonding way;
The weight (8) comprises:
The square balancing weight (801) is sleeved on the bearing shaft (503) and matched with the first square through hole (306) and the second square through hole (405);
the annular balancing weight (803) is connected with the bottom end of the square balancing weight (801);
the second annular groove (802) is formed in the top end of the square balancing weight (801);
and the limiting ring block (804) is arranged at the bottom end of the annular balancing weight (803) and is matched and clamped with the second annular groove (802) on the other group of balancing weight pieces (8).
2. A pipe stress testing device according to claim 1, characterized in that the weight adjuster (4) further comprises:
A placement plate (407) connected to the fixed ring (402);
A first motor (408) provided on the placement plate (407);
and the second gear (406) is in meshed connection with the large gear (404) and is connected with the output end of the first motor (408).
3. A pipe stress testing device according to claim 2, characterized in that the clamping member (2) comprises:
a sliding block (204) arranged on the support base (1);
A first support plate (205) provided on the slider (204);
Arc clamp (206) set up in on first backup pad (205) in order to make things convenient for centre gripping processing tubular product (6).
4. A pipe stress testing device according to claim 3, wherein said second adjusting member comprises:
The sliding rail (202) is arranged on the supporting base (1), and the sliding block (204) slides along the sliding rail (202);
the first air cylinder (201) is arranged on the supporting side plate (101), and the output end of the first air cylinder (201) is connected with the sliding block (204);
the two ends of the limiting rod (203) are connected with the supporting side plate (101) and are in sliding connection with the sliding block (204) so as to limit the position of the sliding block (204);
The connecting window (102) is arranged on the supporting side plate (101) to match with the left and right movement of the processing pipe (6) to impact different positions.
5. A test method suitable for the pipe stress test device according to any one of claims 3 to 4, which is characterized by comprising the following steps:
S1, determining a machining position, namely adjusting the position of an arc-shaped clamp (206), and placing a machined pipe (6) on the arc-shaped clamp (206);
S2, selecting impact force, namely driving a fixed circular ring (402) to move upwards by starting a second air cylinder (401), driving a large gear (404) to move upwards through a first annular groove (403), enabling a second square through hole (405) in the large gear (404) to correspond to the position of an annular balancing weight (803) of a designated balancing weight (8) at the position, starting a first motor (408) at the moment, driving a second gear (406) to rotate, driving the large gear (404) to rotate, stopping rotating after rotating for 90 degrees, enabling the large gear (404) to be attached to the bottom end of the square balancing weight (801) on the designated configuration piece, supporting the balancing weight (8), and enabling the balancing weights (8) below the designated balancing weight (8) to be placed on a placing disc (504) and performing impact test together with a bearing shaft (503);
S3, adjusting reset, namely, driving the rotating shaft (707) to rotate by starting the second motor (708) and the second motor (708), wherein the rotating shaft (707) is fixedly connected with one end of the connecting rope (703), so that the connecting rope (703) is driven to rotate around the rotating shaft (707) when the rotating shaft (707) rotates, the other end of the connecting rope (703) is pulled, and the connecting rope (703) passes through the connecting lug (701) due to the fact that the connecting rope (703) passes through the second pulley (705) and then passes through the top plate (305) and then passes through the first pulley (704), and finally the connecting lug (701) is driven to move upwards, so that the connecting plate (502) is driven to move upwards;
S4, repeatedly impacting, namely performing stamping experiments on the processed pipe (6) through impact pieces (5) with different weights, so that the impact pressure resistance of the processed pipe is improved.
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| CN202411797723.9A CN119269231B (en) | 2024-12-09 | 2024-12-09 | A pipe stress testing device and a testing method thereof |
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| CN202411797723.9A CN119269231B (en) | 2024-12-09 | 2024-12-09 | A pipe stress testing device and a testing method thereof |
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| CN119269231B true CN119269231B (en) | 2025-03-21 |
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| CN108905055A (en) * | 2018-09-25 | 2018-11-30 | 武汉昊康健身器材有限公司 | A kind of adjustable counter weight device of knob and knob adjustable counter balance fitness equipment |
| CN210113563U (en) * | 2019-05-31 | 2020-02-25 | 华亚东营塑胶有限公司 | A device for testing the impact resistance of plastic pipes |
| CN111504813A (en) * | 2020-04-23 | 2020-08-07 | 陈辉 | Device and method for testing impact resistance of plastic pipe |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103257025A (en) * | 2012-02-20 | 2013-08-21 | 鸿富锦精密工业（深圳）有限公司 | Drop test machine |
| CN207586050U (en) * | 2017-08-22 | 2018-07-06 | 常州倍思奇信息科技有限公司 | Tempered glass hits testing stand |
| CN216900025U (en) * | 2021-12-27 | 2022-07-05 | 安徽国友管业科技有限公司 | Plastic pipe shock resistance testing device |
| CN219475181U (en) * | 2023-03-17 | 2023-08-04 | 苏州卓上纺织新材料有限公司 | A kind of impact resistance test box |
| CN117268955A (en) * | 2023-09-25 | 2023-12-22 | 芜湖新磊塑胶科技有限公司 | Plastic pipe drop hammer impact experimental device |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108905055A (en) * | 2018-09-25 | 2018-11-30 | 武汉昊康健身器材有限公司 | A kind of adjustable counter weight device of knob and knob adjustable counter balance fitness equipment |
| CN210113563U (en) * | 2019-05-31 | 2020-02-25 | 华亚东营塑胶有限公司 | A device for testing the impact resistance of plastic pipes |
| CN111504813A (en) * | 2020-04-23 | 2020-08-07 | 陈辉 | Device and method for testing impact resistance of plastic pipe |
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