CN112630035A - Displacement monitoring system for drawing test - Google Patents
Displacement monitoring system for drawing test Download PDFInfo
- Publication number
- CN112630035A CN112630035A CN202011473557.9A CN202011473557A CN112630035A CN 112630035 A CN112630035 A CN 112630035A CN 202011473557 A CN202011473557 A CN 202011473557A CN 112630035 A CN112630035 A CN 112630035A
- Authority
- CN
- China
- Prior art keywords
- cylinder
- anchor rod
- thick bamboo
- monitoring system
- piston cylinder
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Classifications
-
- 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
- G01N3/08—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces
- G01N3/10—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces generated by pneumatic or hydraulic pressure
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B21/00—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant
- G01B21/02—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring length, width, or thickness
-
- 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
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The invention discloses a displacement monitoring system for a drawing test, which comprises a drawing unit and an auxiliary unit, wherein the drawing unit comprises a stop plate, a piston cylinder and a cylinder body resetting component, the stop plate is arranged at the front end of the piston cylinder, the cylinder body resetting component is arranged at the rear end of the piston cylinder, a support rod is arranged at the lower part of the stop plate, one end of the support rod is fixedly connected with the stop plate, the other end of the support rod is fixedly connected with the lower part of the cylinder body resetting component, a pull rope type displacement meter is arranged on the piston cylinder, the free end of a pull rope of the pull rope type displacement meter is connected to the stop plate, the auxiliary unit is a hydraulic pump, and the hydraulic pump is connected with the. The repeated drawing test with high consistency is adopted, the measuring range of the displacement monitoring system is increased, and the measuring precision of the drawing test is improved.
Description
Technical Field
The invention relates to the technical field of drawing tests, in particular to a displacement monitoring system for a drawing test.
Background
The anchor rod drawing instrument is a field detection instrument which is necessary for quality inspection units, is mainly used for detecting the anchoring force of anchoring bodies such as various anchor rods, reinforcing steel bars and the like, and can also be used for detecting the bonding strength of outer tiles, heat-insulating materials, concrete and the like. The main structure of the hand pump comprises a piston cylinder, an anchor rod fixer arranged in the piston cylinder and a hand pump connected with an oil duct of the piston cylinder.
The appearance is drawn to current stock when drawing the experiment, need measure the axial force of stock through drawing the appearance, draws out the length and the dynamics of stock promptly, if the stock is longer, the stock draws the appearance owing to receive the restriction of range, and the completion that just can not be fine draws the experiment.
Disclosure of Invention
The invention aims to provide a displacement monitoring system for a drawing test, which well solves the problems, increases the range of the displacement monitoring system and improves the measurement precision of the drawing test through a high-consistency repeated drawing test.
The technical scheme is that the displacement monitoring system for the drawing test comprises a drawing unit and an auxiliary unit, wherein the drawing unit comprises a stop plate, a piston cylinder and a cylinder body resetting component, the stop plate is arranged at the front end of the piston cylinder, the cylinder body resetting component is arranged at the rear end of the piston cylinder, a support rod is arranged at the lower part of the stop plate, one end of the support rod is fixedly connected with the stop plate, the other end of the support rod is fixedly connected with the lower part of the cylinder body resetting component, a pull rope type displacement meter is arranged on the piston cylinder, the free end of a pull rope of the pull rope type displacement meter is connected to the stop plate, the auxiliary unit is a hydraulic pump, and the hydraulic pump is connected with the piston cylinder.
Furthermore, an anchor rod hole is formed in the middle of the blocking plate, a drawing hole is formed in the middle of the piston cylinder, the anchor rod hole and the drawing hole are coaxially arranged, and adjusting bolts are arranged at four corners of the blocking plate.
Further, the piston cylinder rear end is provided with the stock and draws the subassembly, the stock is drawn the subassembly and is drawn an outer section of thick bamboo including the interior pulling cylinder and the outer pulling cylinder of coaxial setting, the stock via hole has been seted up at interior pulling cylinder middle part, be provided with the axial opening on the interior pulling cylinder, interior pulling cylinder outer wall is the toper, the inside toper that is of outer pulling cylinder, the nearly piston cylinder end of interior pulling cylinder is the path end, outer pulling cylinder and the reverse cup joint of interior pulling cylinder.
Further, the cylinder body reset assembly comprises a telescopic cylinder, the free end of the telescopic cylinder is connected with a reset barrel, the middle of the reset barrel is provided with a through hole, the front end of the reset barrel is provided with an outer reset platform for pushing an outer pulling barrel, the middle of the reset barrel is provided with an inner reset boss for pushing an inner pulling barrel, and the fixed end of the telescopic cylinder is provided with an anchor rod fixing assembly.
Further, the anchor rod fixing assembly comprises an anchor rod fixing sleeve and an outer fixing sleeve sleeved on the anchor rod fixing sleeve, a plurality of fixing rings are arranged on the outer wall of the anchor rod fixing sleeve, a fixing inserting plate is arranged in the outer fixing sleeve and connected with the outer fixing sleeve through a compression spring, the fixing inserting plate is a permanent magnet, an electromagnet is arranged in the outer fixing sleeve and corresponds to the fixing inserting plate, when the electromagnet is electrified, the electromagnet and the fixing inserting plate attract each other with different polarities, and the fixing inserting plate is lifted; when the electromagnet is not electrified, the fixed inserting plate falls into the fixed ring of the anchor rod fixing sleeve to fix the anchor rod fixing sleeve, and a guide column is further arranged between the fixed inserting plate and the outer fixing sleeve.
Further, the bracing piece lower part is provided with the backup pad, the backup pad is connected with the backup pad upper end rotation through the side telescopic link, still be provided with the V type in the backup pad and support, the bottom that the V type supported is connected with the backup pad rotation through the round pin axle, rotate between side telescopic link and the backup pad and be connected, two spinal branch poles that the V type supported rotate with the backup pad respectively and be connected, the bracing piece under the cylinder body reset assembly rotates and is connected, two spinal branch poles that the V type supported are the telescopic link.
Further, the auxiliary unit still includes the chassis, hydraulic pump fixed mounting is on the chassis, be provided with the rocking arm on the hydraulic pump, be connected with the pressure bar on the rocking arm, the pressure bar lower extreme is rotated with the chassis through the pivot and is connected, the pivot is connected with intermittent type formula drive assembly, the nearly rocking arm end of chassis sets up the release link, be connected with reset spring between pressure bar upper end and the release link.
Furthermore, intermittent type formula drive assembly includes pressurization driving motor, be connected with intermittent type gear in pressurization driving motor's the drive shaft, be provided with drive gear in the pivot, drive gear and intermittent type gear cooperation setting.
Furthermore, a pressure relief valve is arranged on the hydraulic pump and connected with a pressure relief motor through a coupler.
Furthermore, adjusting bolts are arranged at four corners of the bottom frame, and the bottom frame is fixedly connected with the hydraulic pump through compression bolts.
The invention has the beneficial effects that:
1) the lower part of the barrier plate is provided with the supporting rod, the piston cylinder is reset through the cylinder body resetting component, so that the piston cylinder can continuously perform drawing tests for multiple times, the displacement distance of the piston cylinder is measured through the pull rope type displacement meter, the displacement data of the drawing tests for multiple times are added, the measuring range of a displacement monitoring system is indirectly increased, and the measuring precision of the drawing tests is also ensured;
2) fixing the anchor rod through the anchor rod drawing assembly, facilitating the drawing of the anchor rod by the piston cylinder, after the drawing is completed for one time, resetting the piston cylinder, pushing the outer drawing cylinder by adopting the cylinder body resetting assembly, so that the anchor rod drawing assembly is free from fixing the anchor rod, then fixing the anchor rod again when pushing the inner drawing cylinder, fixing the tail end of the anchor rod by adopting the anchor rod fixing assembly at the moment, avoiding pushing the inner drawing cylinder, pushing the anchor rod, then performing the drawing test again, repeating the steps for a plurality of times, measuring the drawing displacement of the anchor rod through the stay cord type displacement meter every time, adding the displacements after measuring for a plurality of times, obtaining the total drawing displacement of the anchor rod, and increasing the measuring range of the displacement monitoring system;
3) the hydraulic pump of the auxiliary unit adopts the pressurizing driving motor and the pressure relief motor to pressurize and relieve the pressure of the hydraulic pump, manual operation is replaced, meanwhile, the piston cylinder of the drawing unit is reset, and the fixing and the releasing of the anchor rod are both electrically operated, manual operation is completely replaced, a foundation is laid for remote operation, the test in a complex and unsafe construction environment for a long time is avoided, and the safety of operators is ensured.
Drawings
FIG. 1 is a schematic perspective view of the present invention;
FIG. 2 is a schematic view of a drawing unit according to the present invention;
FIG. 3 is a schematic cross-sectional view of the anchor rod pulling assembly and the cylinder body resetting assembly of the present invention;
fig. 4 is a schematic structural view of an outer fixing sleeve and a fixing insertion plate in the anchor rod fixing assembly of the present invention;
FIG. 5 is a schematic structural diagram of an auxiliary unit according to the present invention;
FIG. 6 is another view of the auxiliary unit of the present invention;
in the figure: 1. a blocking plate; 2. a piston cylinder; 3. a support bar; 4. a pull rope type displacement meter; 5. a hydraulic pump; 6. an oil passage; 7. an inner drawing cylinder; 8. drawing the cylinder outwards; 9. an axial opening; 10. a telescopic cylinder; 11. a reset cylinder; 12. an external reset table; 13. an inner reset boss; 14. fixing a sleeve by using an anchor rod; 15. an outer fixing sleeve; 16. a fixing ring; 17. fixing the inserting plate; 18. a compression spring; 19. an electromagnet; 20. a support plate; 21. a side telescopic rod; 22. v-shaped support; 23. a chassis; 24. a rocker arm; 25. a pressurizing rod; 26. a reset lever; 27. a return spring; 28. a pressurizing drive motor; 29. an intermittent gear; 30. a drive gear; 31. a pressure relief valve; 32. a pressure relief motor.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", etc. indicate orientations or positional relationships based on those shown in the drawings or orientations or positional relationships that the products of the present invention conventionally use, which are merely for convenience of description and simplification of description, but do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.
Furthermore, the terms "first," "second," and the like are used merely to distinguish one description from another, and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
As shown in fig. 1-6, the invention provides a displacement monitoring system for a drawing test, which comprises a drawing unit and an auxiliary unit, wherein the drawing unit comprises a blocking plate 1, a piston cylinder 2 and a cylinder body resetting component, the blocking plate 1 is arranged at the front end of the piston cylinder 2, the cylinder body resetting component is arranged at the rear end of the piston cylinder 2, a supporting rod 3 is arranged at the lower part of the blocking plate 1, one end of the supporting rod 3 is fixedly connected with the blocking plate 1, the other end of the supporting rod 3 is fixedly connected with the lower part of the cylinder body resetting component, a pull rope type displacement meter 4 is arranged on the piston cylinder 2, the free end of a pull rope of the pull rope type displacement meter 4 is connected to the blocking plate 1, the auxiliary unit is a hydraulic pump 5, and the hydraulic pump 5 is connected with the.
According to the invention, the support rod 3 is arranged at the lower part of the barrier plate 1, the piston cylinder 2 is reset through the cylinder body reset assembly, so that the piston cylinder 2 can be continuously subjected to drawing tests for multiple times, the displacement distance of the piston cylinder 2 is measured through the pull rope type displacement meter 4, the displacement data of the drawing tests for multiple times are added, the measuring range of a displacement monitoring system is indirectly increased, and the measuring precision of the drawing tests is also ensured. Although the existing independent drawing instrument can also repeat multiple tests, the test results are added, and the displacement monitoring range is enlarged, the drawing instrument needs to be adjusted and reset in each test, so that the position of the drawing instrument is easy to deviate, and the error of the test result is enlarged. The stop plate 1, the piston cylinder 2 and the cylinder body resetting component are arranged on the same axis, and the support rod 3 is adopted for fixing, so that the initial position change is small even if the piston cylinder 2 is subjected to a drawing test for many times, and the measuring precision is ensured. Piston cylinder 2 is the main part of appearance is drawn to current stock, and the stock passes barrier plate 1, piston cylinder 2, and then the rear end of piston cylinder 2 is fixed to the stock, and piston cylinder 2 is drawn the stock, keeps away from barrier plate 1.
An anchor rod hole is formed in the middle of the blocking plate 1, a drawing hole is formed in the middle of the piston cylinder 2, the anchor rod hole and the drawing hole are coaxially arranged, and adjusting bolts are arranged at four corners of the blocking plate 1. The barrier plate 1 is mainly used for shielding a rock wall, one end of the piston cylinder 2 is directly used on the barrier plate 1, the distance between the barrier plate 1 and the rock wall can be adjusted through the design of the adjusting bolt, the perpendicularity between the barrier plate 1 and an anchor rod is guaranteed, and the force on the piston cylinder 2 can be uniformly applied on the barrier plate 1.
2 rear ends of piston cylinder are provided with the stock and draw the subassembly, the stock is drawn the subassembly and is drawn an interior drawing section of thick bamboo 7 and an outer drawing section of thick bamboo 8 of coaxial setting, the stock via hole has been seted up at an interior drawing section of thick bamboo 7 middle part, be provided with axial opening 9 on an interior drawing section of thick bamboo 7, an interior drawing section of thick bamboo 7 outer wall is the toper, the inside toper that is of an outer drawing section of thick bamboo 8, the nearly piston cylinder 2 end of an interior drawing section of thick bamboo 7 is the path end, an outer drawing section of thick bamboo 8 cup joints with an interior drawing section of thick bamboo 7 is reverse. The anchor rod drawing assembly is used for fixing the anchor rod when the anchor rod is drawn. When the stock need be drawn, interior pulling cylinder 7 cup joints on the stock, then outer pulling cylinder 8 cup joints again on interior pulling cylinder 7, and the internal conical surface of outer pulling cylinder 8 sets up with the external conical surface of interior pulling cylinder 7 is opposite, and interact this moment extrudees interior pulling cylinder 7, makes interior pulling cup joint on the stock through the fastening, and interior pulling cylinder 7 has axial opening 9, can adapt to the size of different stocks. And when drawing, piston cylinder 2 promotes outer drawing tube 8 and is close to interior drawing tube 7, makes the stock draw the subassembly and fastens the stock more, has avoided the stock to draw the relative displacement of subassembly with the stock when drawing.
The cylinder body subassembly that resets includes telescoping cylinder 10, the free end of telescoping cylinder 10 is connected with a section of thick bamboo 11 that resets, the through-hole has been seted up at a section of thick bamboo 11 middle part that resets, a section of thick bamboo 11 front end that resets is provided with the outer platform 12 that resets that promotes outer pulling cylinder 8, the interior middle part of a section of thick bamboo 11 that resets is provided with the interior boss 13 that resets that promotes interior pulling cylinder 7, telescoping cylinder 10 stiff end is provided with the fixed subassembly of stock. The telescopic cylinder 10 is an electric push rod or a gas/liquid cylinder push rod. The diameter that resets a section of thick bamboo 11's outer platform 12 that resets is greater than interior boss 13 that resets, when the piston cylinder 2 accomplishes once drawing, 2 shrink of piston cylinder resets, telescopic cylinder 10 promotes a section of thick bamboo 11 that resets, outer platform 12 that resets contacts outer pulling cylinder 8 at first, make outer pulling cylinder 8 and interior pulling cylinder 7 reverse separation, remove the fixed to the stock, then telescopic cylinder 10 continues to promote a section of thick bamboo 11 that resets, make interior boss 13 that resets and interior pulling cylinder 7 contact, promote interior pulling cylinder 7, be about to the stock and draw the whole position promotion to the piston cylinder 2 shrink of subassembly, make things convenient for the secondary to draw.
The anchor rod fixing assembly comprises an anchor rod fixing sleeve 14 and an outer fixing sleeve 15 sleeved on the anchor rod fixing sleeve 14, a plurality of fixing rings 16 are arranged on the outer wall of the anchor rod fixing sleeve 14, a fixing insertion plate 17 is arranged in the outer fixing sleeve 15, the fixing insertion plate 17 is connected with the outer fixing sleeve 15 through a compression spring 18, the fixing insertion plate 17 is a permanent magnet, an electromagnet 19 is arranged in the outer fixing sleeve 15 corresponding to the fixing insertion plate 17, when the electromagnet 19 is electrified, the electromagnet 19 and the fixing insertion plate 17 attract each other with different polarities, and the fixing insertion plate 17 is lifted; when the electromagnet 19 is not electrified, the fixed inserting plate 17 falls into the fixed ring 16 of the anchor rod fixed sleeve 14 to fix the anchor rod fixed sleeve 14, and a guide post is further arranged between the fixed inserting plate 17 and the outer fixed sleeve 15. When the cylinder body subassembly that resets promoted the stock and draw the subassembly and reset, there were great power to promote outer drawing tube 8 and interior drawing tube 7, in order to avoid drawing the stock of subassembly contact with the stock and being pushed back the cliff, adopt the stock fixed subassembly to fix the stock tail end. The anchor rod fixing sleeve 14 is fixedly connected with the anchor rod, and the anchor rod fixing sleeve 14 and the outer fixing sleeve 15 are intermittently fixed and separated through the fixing inserting plate 17. When the anchor rod is drawn, the electromagnet 19 on the outer fixing sleeve 15 is electrified and mutually attracted with the fixing insertion plate 17, so that the fixing insertion plate 17 rises, the fixing insertion plate 17 is separated from the anchor rod fixing sleeve 14, and the anchor rod is drawn out under the drawing of the piston cylinder 2 and moves in the outer fixing sleeve 15; after once drawing is completed, the piston cylinder 2 resets, and when the cylinder body reset assembly pushes the anchor rod to draw the assembly, in order to avoid the anchor rod to be pushed, the electromagnet 19 on the outer fixing sleeve 15 is powered off and is mutually exclusive with the fixed inserting plate 17, the fixed inserting plate 17 falls under the action of the reset spring 27 and the self gravity, and the fixed inserting plate 17 is inserted into the fixing ring 16 of the anchor rod fixing sleeve 14, so that the outer fixing sleeve 15 and the anchor rod fixing sleeve 14 are mutually fixed, namely the anchor rod is fixed.
Because have barrier plate 1, cylinder body reset assembly on the bracing piece 3, still born the weight of spare part such as piston cylinder 2, in order to guarantee experimental steady the going on 3 lower parts of bracing piece are provided with backup pad 20, backup pad 20 rotates with barrier plate 1 upper end through side telescopic link 21 to be connected, still be provided with V type on the backup pad 20 and support 22, V type supports 22's bottom and rotates with backup pad 20 through the round pin axle to be connected, rotate between side telescopic link 21 and the backup pad 20 to be connected, two spinal branch poles of V type support 22 rotate with barrier plate 1 respectively and are connected, cylinder body reset assembly's bracing piece 3 rotates to be connected, two spinal branch poles of V type support 22 are the telescopic link. That is, the supporting plate 20 is placed on the ground, and the supporting plate 20 may be provided with a plurality of screw holes for connecting bolts with the ground by screw threads and adjusting the height between each corner and the ground. The length and the angle between the V-shaped support 22 and the supporting plate 20 can be adjusted by the side telescopic rod 21 and the V-shaped support 22, so that the height between the blocking plate 1 and the supporting plate 20 can be conveniently adjusted.
The auxiliary unit still includes chassis 23, 5 fixed mounting of hydraulic pump is on chassis 23, be provided with rocking arm 24 on the hydraulic pump 5, be connected with pressure bar 25 on the rocking arm 24, pressure bar 25 lower extreme is rotated with chassis 23 through the pivot and is connected, the pivot is connected with intermittent type formula drive assembly, the nearly rocking arm 24 end of chassis 23 sets up release link 26, be connected with reset spring 27 between pressure bar 25 upper end and the release link 26. Namely, the pressurizing mode of the hand pump is simulated. The intermittent drive unit intermittently drives the pressure lever 25 to intermittently swing the rocker arm 24 by the pressure lever 25, and then the return spring 27 returns the rocker arm 24 to pressurize the hydraulic pump 5.
The intermittent driving assembly comprises a pressurizing driving motor 28, an intermittent gear 29 is connected to a driving shaft of the pressurizing driving motor 28, a driving gear 30 is arranged on the rotating shaft, and the driving gear 30 and the intermittent gear 29 are arranged in a matched mode. The intermittent gear 29 is also an incomplete gear which is in intermittent driving connection with the driving gear 30. The pressurizing driving motor 28 drives the intermittent gear 29 to rotate, when the intermittent gear 29 rotates in contact with the driving gear 30, the driving gear 30 drives the pressurizing rod 25 to press downwards, so that the rocker arm 24 presses downwards, and the hydraulic pump 5 pressurizes; when the intermittent gear 29 is not in contact with the drive gear 30, the pressure lever 25 is reset by the tension of the return spring 27, and the pressure lever 25 brings the rocker arm 24 to be simultaneously reset. The intermittent gear 29 then rotates again in contact with the drive gear 30, and the above-described process is repeated.
The hydraulic pump 5 is provided with a pressure release valve 31, and the pressure release valve 31 is connected with a pressure release motor 32 through a coupler. After piston cylinder 2 pressurizes certain pressure, accomplish once and draw, piston cylinder 2 needs the pressure release to reset, and hydraulic pump 5 needs the pressure release this moment, and pressure release motor 32 drives the rotation of relief valve 31, opens relief valve 31, and hydraulic pump 5 pressure release, after the pressure release was accomplished, pressure release motor 32 antiport closed relief valve 31. The pressure relief motor 32 is a forward and reverse rotation motor, and a speed reducer is installed between the pressure relief motor 32 and the pressure relief valve 31, so that the pressure relief motor 32 can drive the pressure relief valve 31 to rotate forward and backward, and the pressure relief valve 31 can be opened or closed conveniently.
Adjusting bolts are arranged at four corners of the bottom frame 23, and the bottom frame 23 is fixedly connected with the hydraulic pump 5 through compression bolts. Between chassis 23 and the hydraulic pump 5 promptly, through clamp bolt connection, hydraulic pump 5 of unidimensional can be fixed to a chassis 23, and the adjusting bolt of chassis 23 four corners setting for adjust the different height in chassis 23 four corners, with adaptation test place unevenness's ground, guarantee that hydraulic pump 5's installation is steady.
The complete operation process of the invention is as follows: a tester sleeves the stop plate 1 on the anchor rod to be monitored, then adjusts the plane position of the stop plate 1 to enable the stop plate 1 to be perpendicular to the anchor rod, and then sequentially sleeves the piston cylinder 2, the anchor rod drawing assembly and the cylinder body resetting assembly on the anchor rod. Then the inner drawing cylinder 7 and the outer drawing cylinder 8 are pushed to fix the anchor rod, the pressurizing driving motor 28 is started at the moment, the pressurizing rod 25 presses the rocker arm 24 to pressurize the piston cylinder 2 by the hydraulic pump 5, the anchor rod is drawn by the piston cylinder 2 at the moment, the stay cord type displacement meter 4 measures the displacement length of the piston cylinder 2, namely the drawing length of the anchor rod, the anchor rod fixing sleeve 14 is not in contact with the fixing insertion plate 17 at the moment, and the anchor rod can freely move in the outer fixing sleeve 15; when the piston cylinder 2 moves to the limit position, pressurization is stopped, the pressure relief motor 32 rotates to drive and open the pressure relief valve 31, pressure is relieved for the hydraulic pump 5, namely pressure relief of the piston cylinder 2 is relieved, the initial position is recovered, the anchor rod fixing sleeve 14 is fixedly contacted with the fixing insertion plate 17 at the moment, the tail end of the anchor rod is fixed on the outer fixing sleeve 15, the telescopic cylinder 10 pushes the reset cylinder 11, the outer drawing cylinder 8 is separated from the inner drawing cylinder 7 firstly, fixing of the anchor rod drawing component on the anchor rod is released, then the reset cylinder 11 continues to push the inner drawing cylinder 7, the inner drawing cylinder 7 is close to the outer drawing cylinder 8, even if the outer drawing cylinder 8 and the inner drawing cylinder 7 move to the position where the first drawing starts, the secondary fixing of the anchor rod drawing component on the anchor rod is completed, the pressurization driving motor 28 is started at the moment, the operation is repeated, the secondary drawing test. The pull rope type displacement meter 4 records the drawing length of the piston cylinder 2 each time, and finally the drawing lengths are added to obtain the final drawing distance.
When the switch control circuit and the signal transmission unit are added to the pressurization driving motor 28, the pressure relief motor 32 and the telescopic cylinder 10, an operator only needs to install the displacement monitoring system on the anchor rod and then perform remote operation, and the test on a complex site for a long time is not needed. If the pressurizing driving motor 28, the pressure relief motor 32 and the telescopic cylinder 10 are provided with switch control circuits for controlling the opening and closing of the pressurizing driving motor 28, the pressure relief motor 32 and the telescopic cylinder 10, and meanwhile, the pull rope type displacement meter 4 is provided with a signal transmitter for transmitting displacement data measured by the pull rope type displacement meter 4 to a computer of a tester in real time. The switch control circuit is an existing conventional circuit, and the signal transmitter can be a wireless or wired signal transmitter, and is also an existing common technology.
The invention changes the test mode of the existing anchor rod drawing instrument operated manually, so that the displacement monitoring system can repeatedly perform the drawing test on the anchor rod, the range of the displacement monitoring system is indirectly increased, and the measuring precision of the drawing test is improved.
The present invention is capable of other embodiments, and various changes and modifications may be made by one skilled in the art without departing from the spirit and scope of the invention.
Claims (10)
1. A displacement monitoring system for drawing experiment which characterized in that: including drawing unit and auxiliary unit, draw the unit including barrier plate (1), piston cylinder (2) and cylinder body reset assembly, barrier plate (1) sets up at piston cylinder (2) front end, cylinder body reset assembly sets up at piston cylinder (2) rear end, barrier plate (1) lower part is provided with bracing piece (3), bracing piece (3) one end and barrier plate (1) fixed connection, bracing piece (3) other end and cylinder body reset assembly lower part fixed connection, install stay cord formula displacement meter (4) on piston cylinder (2), the stay cord free end of stay cord formula displacement meter (4) is connected on barrier plate (1), the auxiliary unit is hydraulic pump (5), hydraulic pump (5) are connected with piston cylinder (2) through oil duct (6).
2. The displacement monitoring system for pull-out test of claim 1, wherein: an anchor rod hole is formed in the middle of the blocking plate (1), a drawing hole is formed in the middle of the piston cylinder (2), the anchor rod hole and the drawing hole are coaxially arranged, and adjusting bolts are arranged at four corners of the blocking plate (1).
3. The displacement monitoring system for pull-out test of claim 1, wherein: piston cylinder (2) rear end is provided with the stock and draws the subassembly, the stock is drawn subassembly and is drawn an interior pulling section of thick bamboo (7) and an outer pulling section of thick bamboo (8) including coaxial setting, the stock via hole has been seted up at interior pulling section of thick bamboo (7) middle part, be provided with axial opening (9) on interior pulling section of thick bamboo (7), interior pulling section of thick bamboo (7) outer wall is the toper, outer pulling section of thick bamboo (8) inside is the toper, the nearly piston cylinder (2) end of interior pulling section of thick bamboo (7) is the path end, outer pulling section of thick bamboo (8) and reverse the cup jointing of interior pulling section of thick bamboo (7).
4. The displacement monitoring system for pull-out test of claim 3, wherein: the cylinder body subassembly that resets includes telescoping cylinder (10), the free end of telescoping cylinder (10) is connected with a section of thick bamboo (11) that resets, the through-hole has been seted up at a section of thick bamboo (11) middle part that resets, a section of thick bamboo (11) front end that resets is provided with the outer platform (12) that resets that promote outer pulling cylinder (8), the interior middle part of a section of thick bamboo (11) that resets is provided with interior boss (13) that resets that promote interior pulling cylinder (7), telescoping cylinder (10) stiff end is provided with the fixed subassembly of stock.
5. The displacement monitoring system for pull-out testing of claim 5, wherein: the anchor rod fixing assembly comprises an anchor rod fixing sleeve (14) and an outer fixing sleeve (15) sleeved on the anchor rod fixing sleeve (14), a plurality of fixing rings (16) are arranged on the outer wall of the anchor rod fixing sleeve (14), a fixing inserting plate (17) is arranged in the outer fixing sleeve (15), the fixing inserting plate (17) is connected with the outer fixing sleeve (15) through a compression spring (18), the fixing inserting plate (17) is a permanent magnet, an electromagnet (19) is arranged in the outer fixing sleeve (15) corresponding to the fixing inserting plate (17), when the electromagnet (19) is electrified, the electromagnet (19) and the fixing inserting plate (17) attract each other with different polarities, and the fixing inserting plate (17) is lifted; when the electromagnet (19) is not electrified, the fixed inserting plate (17) falls into the fixed ring (16) of the anchor rod fixed sleeve (14) to fix the anchor rod fixed sleeve (14), and a guide column is further arranged between the fixed inserting plate (17) and the outer fixed sleeve (15).
6. The displacement monitoring system for pull-out test of claim 1, wherein: bracing piece (3) lower part is provided with backup pad (20), backup pad (20) are rotated with barrier plate (1) upper end through side telescopic link (21) and are connected, rotate between side telescopic link (21) and backup pad (20) and be connected, still be provided with the V type on backup pad (20) and support (22), the bottom that the V type supported (22) is rotated with backup pad (20) through the round pin axle and is connected, two spinal branch poles that the V type supported (22) rotate with barrier plate (1) respectively and are connected, bracing piece (3) under the cylinder body subassembly that resets rotate are connected, two spinal branch poles that the V type supported (22) are the telescopic link.
7. The displacement monitoring system for pull-out test of claim 1, wherein: the auxiliary unit still includes chassis (23), hydraulic pump (5) fixed mounting is on chassis (23), be provided with rocking arm (24) on hydraulic pump (5), be connected with pressure bar (25) on rocking arm (24), pressure bar (25) lower extreme is rotated through pivot and chassis (23) and is connected, the pivot is connected with intermittent type formula drive assembly, chassis (23) nearly rocking arm (24) end sets up release link (26), be connected with reset spring (27) between pressure bar (25) upper end and release link (26).
8. The displacement monitoring system for pull-out testing of claim 7, wherein: intermittent type formula drive assembly includes pressurization driving motor (28), be connected with intermittent type gear (29) on pressurization driving motor's (28) the drive shaft, be provided with drive gear (30) in the pivot, drive gear (30) and intermittent type gear (29) cooperation setting.
9. The displacement monitoring system for pull-out testing of claim 7, wherein: a pressure release valve (31) is arranged on the hydraulic pump (5), and the pressure release valve (31) is connected with a pressure release motor (32) through a coupler.
10. The displacement monitoring system for pull-out testing of claim 7, wherein: adjusting bolts are arranged at four corners of the bottom frame (23), and the bottom frame (23) is fixedly connected with the hydraulic pump (5) through compression bolts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011473557.9A CN112630035B (en) | 2020-12-15 | 2020-12-15 | Displacement monitoring system for drawing test |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011473557.9A CN112630035B (en) | 2020-12-15 | 2020-12-15 | Displacement monitoring system for drawing test |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112630035A true CN112630035A (en) | 2021-04-09 |
| CN112630035B CN112630035B (en) | 2022-01-04 |
Family
ID=75312751
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011473557.9A Active CN112630035B (en) | 2020-12-15 | 2020-12-15 | Displacement monitoring system for drawing test |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112630035B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114486538A (en) * | 2022-04-02 | 2022-05-13 | 深圳市盛业建筑科技(集团)有限公司 | Anti-pulling test measuring device for foundation pit anchor rod |
| CN117949306A (en) * | 2024-03-27 | 2024-04-30 | 河海大学 | Constant-resistance anchor rod large-displacement drawing machine and use method thereof |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2741028Y (en) * | 2004-11-05 | 2005-11-16 | 北京中煤矿山工程有限公司 | Comprehensive parameter measuring device of anchor bolt |
| CN102944477A (en) * | 2012-11-09 | 2013-02-27 | 中国矿业大学(北京) | Large-displacement drawing machine for constant-resistance anchor tie and usage method thereof |
| CN204718891U (en) * | 2015-06-25 | 2015-10-21 | 湖南科技大学 | A kind of drawing instrument detected for Extendable anchor rod |
| CN207484534U (en) * | 2017-11-15 | 2018-06-12 | 天津深城建筑检测有限公司 | One kind moves back anchor drawing instrument automatically |
| CN207717522U (en) * | 2017-12-06 | 2018-08-10 | 四川省城市建设工程监理有限公司 | A kind of anchor rod drawing instrument |
| CN207717521U (en) * | 2018-01-26 | 2018-08-10 | 中国水利水电第七工程局有限公司 | A kind of anchor rod drawing experimental detection device |
| US10060809B1 (en) * | 2016-10-27 | 2018-08-28 | Larry C. Hoffman | Friction stabilizer pull tester and method |
| CN208125496U (en) * | 2018-03-28 | 2018-11-20 | 广东建准检测技术有限公司 | A kind of anchor pole resistance to plucking detection device |
| CN211452808U (en) * | 2019-12-09 | 2020-09-08 | 中铁津桥工程检测有限公司 | Foundation pit support anchor rod drawing test displacement measurement device |
-
2020
- 2020-12-15 CN CN202011473557.9A patent/CN112630035B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2741028Y (en) * | 2004-11-05 | 2005-11-16 | 北京中煤矿山工程有限公司 | Comprehensive parameter measuring device of anchor bolt |
| CN102944477A (en) * | 2012-11-09 | 2013-02-27 | 中国矿业大学(北京) | Large-displacement drawing machine for constant-resistance anchor tie and usage method thereof |
| CN204718891U (en) * | 2015-06-25 | 2015-10-21 | 湖南科技大学 | A kind of drawing instrument detected for Extendable anchor rod |
| US10060809B1 (en) * | 2016-10-27 | 2018-08-28 | Larry C. Hoffman | Friction stabilizer pull tester and method |
| CN207484534U (en) * | 2017-11-15 | 2018-06-12 | 天津深城建筑检测有限公司 | One kind moves back anchor drawing instrument automatically |
| CN207717522U (en) * | 2017-12-06 | 2018-08-10 | 四川省城市建设工程监理有限公司 | A kind of anchor rod drawing instrument |
| CN207717521U (en) * | 2018-01-26 | 2018-08-10 | 中国水利水电第七工程局有限公司 | A kind of anchor rod drawing experimental detection device |
| CN208125496U (en) * | 2018-03-28 | 2018-11-20 | 广东建准检测技术有限公司 | A kind of anchor pole resistance to plucking detection device |
| CN211452808U (en) * | 2019-12-09 | 2020-09-08 | 中铁津桥工程检测有限公司 | Foundation pit support anchor rod drawing test displacement measurement device |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114486538A (en) * | 2022-04-02 | 2022-05-13 | 深圳市盛业建筑科技(集团)有限公司 | Anti-pulling test measuring device for foundation pit anchor rod |
| CN117949306A (en) * | 2024-03-27 | 2024-04-30 | 河海大学 | Constant-resistance anchor rod large-displacement drawing machine and use method thereof |
| CN117949306B (en) * | 2024-03-27 | 2024-06-07 | 河海大学 | Constant-resistance anchor rod large-displacement drawing machine and use method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN112630035B (en) | 2022-01-04 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN112630035B (en) | Displacement monitoring system for drawing test | |
| CN210293900U (en) | Carbon fiber composite wire tensile detection equipment | |
| CN107290231B (en) | Torsion equipment for testing material performance | |
| EP2192395B1 (en) | Method of checking the pulling load of an anchor fixed in a wall or ceiling | |
| CN101464128B (en) | Rotating angle measurement apparatus | |
| CN201340260Y (en) | Rotation angle measuring device | |
| CN211824974U (en) | Damping measurer | |
| CN212059697U (en) | Building site basis stock intensity detection device | |
| CN209446371U (en) | A kind of all kinds of nonplanar assembled self-balancing original positions of adaptation pull-out test device | |
| CN212794816U (en) | Pin puller | |
| KR101115543B1 (en) | Structure test appuratus of damping prop | |
| CN116106122B (en) | Device for detecting compressive strength of concrete by radial annular pressure of concrete core sample with any diameter | |
| CN211900488U (en) | Drill rod mechanism with depth measurement structure | |
| CN218970091U (en) | Pile foundation anti-pulling static load test device | |
| CN109490082B (en) | Automatic direct pulling equipment for common bearing platform for detecting concrete strength by pull-out method | |
| CN109540651B (en) | Assembled self-balancing in-situ drawing test device suitable for various nonplanar surfaces | |
| CN209247376U (en) | A kind of durable simulation test experiment machine | |
| CN220772725U (en) | Rock triaxial test machine | |
| CN219280661U (en) | Heavy cone dynamic sounding instrument | |
| CN219064360U (en) | Geological fracture measuring device | |
| CN215727313U (en) | Tensile mechanical property testing device for metal foil plate | |
| CN220893743U (en) | Drop test machine for fire gun and fire interface | |
| CN216117172U (en) | Mechanical property testing device of high-strength machine-made sand concrete | |
| CN117302540A (en) | Device and method for testing actuator of folding bolt of airplane wing | |
| CN220304472U (en) | Plate type rubber support deformation detection device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |