Special machine for curb compression resistance and fracture resistance integrated test

Abstract

The invention relates to the technical field of compressive and flexural tests, and discloses a curb compressive and flexural integrated test special machine which comprises a rack, and a pressure applying mechanism and a pressure bearing mechanism which are arranged up and down are arranged on the rack; the pressure applying mechanism comprises an anti-bending test assembly and an anti-compression test assembly which is detachably connected to the anti-bending test assembly; the anti-bending test assembly comprises a pressure applying roller; the compression test assembly comprises a pressure applying table; the pressure-bearing mechanism comprises a pressure-resistant pressure-bearing table and a pair of folding pressure-bearing rollers arranged on the two sides of the pressure-resistant pressure-bearing table. The device can be used for carrying out compression resistance and bending resistance tests on curbs, the practicability of test equipment can be improved, and the test cost can be effectively reduced.

Description

Technical Field

[0001] The invention relates to the technical field of compression and flexure resistance testing, and in particular to a special machine for integrated compression and flexure resistance testing of curbstones. Background Art

[0002] Curbstone refers to the boundary stone set at the edge of the road surface, referred to as curbstone. The curbstone laid between the carriageway and the sidewalk, between the carriageway and the dividing strip, or on the edge of the island-shaped green belt in the middle of the road is called a curbstone. It is a decorative accessory component of modern road engineering, which plays the role of defining the road surface range, tidying up the road volume, protecting the edge of the road surface and beautifying the environment. Affected by the environment, insufficient bending strength will cause the curbstone to break and crack. Water seeping into the base from the cracks will greatly reduce its bearing capacity, resulting in cases of damage to the curbstone. Therefore, the curbstone is required to have a higher flexural strength. The existing curbstone compressive strength test generally borrows other pressure testing machines, and the curbstone flexural test machine can only measure the flexural performance alone. Testing the compression and flexural performance of the curbstone requires at least two test equipments, and the test cost is relatively high. Summary of the invention

[0003] The purpose of the present invention is to provide a special machine for integrated compression and flexure resistance testing of curbstones, which can perform compression and flexure resistance tests on curbstones, thereby improving the practicability of the testing equipment and effectively reducing the testing cost.

[0004] The above technical objectives of the present invention are achieved through the following technical solutions: A special machine for curbstone compression and flexure resistance integrated testing, comprising a frame, on which a pressure-applying mechanism and a pressure-bearing mechanism are arranged up and down; The pressure mechanism includes a flexural test assembly and a compression test assembly detachably connected to the flexural test assembly; the flexural test assembly includes a pressure rod; the compression test assembly includes a pressure platform; The pressure-bearing mechanism comprises a pressure-resistant pressure-bearing platform and a pair of anti-bending pressure-bearing rods arranged on both sides of the pressure-resistant pressure-bearing platform.

[0005] When a compression test is performed on a curbstone, the curbstone is placed on a compression bearing platform, and then the compression test assembly is moved downward to perform a compression test on the curbstone; the pressure platform applies pressure to one surface of the curbstone.

[0006] When it is necessary to perform a flexural test on the curb, first remove the compression test assembly from the flexural test assembly, then place both ends of the curb on two flexural pressure rods, move the flexural test assembly downward to perform a flexural test on the curb, and the pressure rods apply pressure to the curb in a line.

[0007] The present invention is further configured as follows: the bending test assembly comprises a hydraulic cylinder fixed on the upper end of the frame, a pressure seat is fixed on the end of the telescopic rod of the hydraulic cylinder, a rectangular long groove with a lower opening is formed in the middle of the pressure seat, a pressure rod seat is sleeved in the rectangular long groove, the middle of the pressure rod seat is inserted and sleeved on the support pin shaft, and the support pin shaft is inserted and sleeved on the pressure seat; a pressure sensor is provided on the hydraulic pipeline connected to the hydraulic cylinder, and the output pressure of the hydraulic cylinder is indirectly measured by the pressure sensor; The pressure roller is connected to the pressure roller seat.

[0008] Through the above technical scheme, the hydraulic cylinder can drive the pressure seat to move up or down. When applying pressure, the pressure seat drives the pressure rod seat to move down through the support pin shaft, and the pressure rod seat drives the pressure rod to move down. When the pressure rod is pressed against the upper side wall of the curb, the pressure rod seat can be flipped at a small angle on the pressure seat through the support pin shaft, so that the pressure rod can also be flipped at a small angle, so that the pressure rod can contact the curb in the form of a line, and can avoid contact with the curb in the form of a point, thereby improving the test accuracy of the flexural test.

[0009] The present invention is further configured as follows: the lower end of the pressure rod seat is formed with an arc surface matching the pressure rod, and the upper side wall of the pressure rod is attached to the arc surface; The two ends of the pressure stick are inserted and sleeved on the connecting block, and the connecting block is fixed to the end of the pressure stick seat by screws.

[0010] Through the above technical solution, the pressure stick and the pressure stick seat are detachably connected, which can facilitate the maintenance and replacement of the pressure stick. The maintenance work is to rotate the angle of the pressure stick to avoid it being in the same position for a long time for experiment; The arc surface can provide a larger force-bearing surface for the pressure-applying rod.

[0011] The present invention is further configured as follows: a rectangular sink is formed in the middle of the lower end of the pressure seat; The compression test assembly includes a rectangular connecting seat inserted in a rectangular groove, and the rectangular connecting seat is connected to the pressure seat through a plurality of first screws; a pressure platform seat is fixed on the rectangular connecting seat, and the pressure platform seat and the pressure platform are connected through a plurality of second screws.

[0012] The pressure-applying platform and the pressure-resisting and pressure-bearing platform are circular in shape and are coaxially arranged.

[0013] Through the above technical solution, the rectangular connecting seat can be positioned by inserting the rectangular connecting seat into the rectangular sink; the rectangular connecting seat and the pressure seat are connected by the first screw, so that the compression test assembly can be easily removed from the flexural test assembly; When performing a compression test, the pressure seat drives the rectangular connecting seat to move downward, and the rectangular connecting seat drives the pressure platform to move downward through the pressure platform seat, and the lower end surface of the pressure platform is pressed against the curb to perform a compression test on the curb.

[0014] The present invention is further configured such that the upper end height of the anti-bending pressure rod is higher than the upper end height of the anti-compression pressure platform. The height of the anti-bending pressure rod is higher than the height of the anti-compression pressure platform, so that the anti-bending pressure test does not need to overflow the anti-compression pressure platform, thereby facilitating operation.

[0015] The present invention is further configured as follows: the anti-bending pressure-bearing rod is connected to the pressure-bearing rod seat, the pressure-bearing rod seat is inserted into the limiting slot of the movable seat, the middle part of the limiting slot is sleeved with a second pin shaft, and the second pin shaft is inserted into the middle part of the pressure-bearing rod seat; The movable seat is arranged on a supporting base of the frame.

[0016] The pressure rod seat can be flipped at a small angle on the moving seat through the second pin shaft, so that the lower end surface of the curb can contact the anti-bending pressure rod in line contact rather than point contact, which can further improve the test accuracy.

[0017] The present invention is further configured as follows: two parallel T-shaped grooves are formed on the support base; Two screw rods are sleeved on the movable seat, the upper ends of the screw rods are screwed with locking nuts, the lower ends of the screw rods are fixed with T-shaped blocks, and the T-shaped blocks are inserted and sleeved in the T-shaped grooves.

[0018] Loosen the locking nut, the T-block can move in the T-slot, and the T-block drives the moving seat to move through the screw, so that the position of the moving seat can be adjusted to adapt to the bending resistance test of curbstones of different lengths.

[0019] The outstanding effects of the present invention are: Compared with the existing technology, one test equipment integrates the functions of bending and compression test, and can perform compression and bending tests on curbstones, which can improve the practicality of the test equipment and effectively reduce the test cost; A pair of flexural bearing rods are movable to meet the flexural test requirements of curbstones of different lengths. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural schematic diagram of the present invention; Figure 2 It is a front view of the present invention; Figure 3 A cross-sectional view of the present invention in the front direction; Figure 4 It is a structural schematic diagram of the pressure-bearing mechanism of the present invention; Figure 5 It is a structural schematic diagram of the pressure applying mechanism of the present invention; Figure 6 Schematic diagram of the curbstone during compression test; Figure 7Schematic diagram of the curbstone during the flexural test.

[0021] Reference numerals: 10, frame; 101, support base; 102, T-slot; 20. Pressure-applying mechanism; 201. Flexural test assembly; 202. Compression test assembly; 2011, hydraulic cylinder; 2012, pressure seat; 2013, rectangular long groove; 2014, pressure rod seat; 2015, support pin; 2016, pressure rod; 2017, arc surface; 2018, connecting block; 2019, rectangular sink; 2021, rectangular connecting seat; 2022, pressure platform seat; 2023, second screw; 2024, pressure platform; 2025, first screw; 30. Pressure-bearing mechanism; 301. Pressure-bearing platform; 302. Anti-bending pressure-bearing rod; 303. Pressure-bearing rod seat; 304. Moving seat; 3041. Limiting slot; 305. Second pin shaft; 306. Screw; 307. T-block; 308. Screw; 90. Curbstone. DETAILED DESCRIPTION

[0022] The specific implementation of the present invention is further described in detail below in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0023] The following references Figure 1-Figure 7 The present invention is described: A special machine for curbstone compression and flexure resistance integrated testing includes a frame 10, on which a pressure-applying mechanism 20 and a pressure-bearing mechanism 30 are arranged in an upper and lower manner; The pressure mechanism 20 includes a flexural test assembly 201 and a compression test assembly 202 detachably connected to the flexural test assembly 201; the flexural test assembly 201 includes a pressure rod 2016; the compression test assembly 202 includes a pressure platform 2024; The pressure-bearing mechanism 30 includes a pressure-bearing platform 301 and a pair of anti-bending pressure-bearing rollers 302 arranged on both sides of the pressure-bearing platform 301 .

[0024] When a compression test is performed on a curbstone, the curbstone is placed on a compression bearing platform, and then the compression test assembly is moved downward to perform a compression test on the curbstone; the pressure platform applies pressure to one surface of the curbstone.

[0025] When it is necessary to perform a flexural test on the curb, first remove the compression test assembly from the flexural test assembly, then place both ends of the curb on two flexural pressure rods, move the flexural test assembly downward to perform a flexural test on the curb, and the pressure rods apply pressure to the curb in a line.

[0026] The bending test assembly 201 includes a hydraulic cylinder 2011 fixed to the upper end of the frame 10, a pressure seat 2012 is fixed to the end of the telescopic rod of the hydraulic cylinder 2011, a rectangular long groove 2013 with a lower opening is formed in the middle of the pressure seat 2012, a pressure rod seat 2014 is sleeved in the rectangular long groove 2013, the middle of the pressure rod seat 2014 is inserted on the support pin 2015, and the support pin 2015 is inserted on the pressure seat 2012; a pressure sensor is provided on the hydraulic pipeline connected to the hydraulic cylinder, and the output pressure of the hydraulic cylinder is indirectly measured by the pressure sensor; The pressure rod 2016 is connected to the pressure rod seat 2014.

[0027] The hydraulic cylinder can drive the pressure seat to move up or down. When applying pressure, the pressure seat drives the pressure rod seat to move down through the supporting pin shaft, and the pressure rod seat drives the pressure rod to move down. When the pressure rod is pressed against the upper side wall of the curb, the pressure rod seat can be flipped at a small angle on the pressure seat through the supporting pin shaft, so that the pressure rod can also be flipped at a small angle, so that the pressure rod can contact the curb in the form of a line, and can avoid contact with the curb in the form of a point, thereby improving the test accuracy of the flexural test.

[0028] The lower end of the pressure rod seat 214 is formed with an arc surface 2017 that matches the pressure rod 2016, and the upper side wall of the pressure rod 2016 is attached to the arc surface 2017; The two ends of the pressure rod 2016 are inserted into the connecting block 2018, and the connecting block 2018 is fixed to the end of the pressure rod seat 2014 by screws.

[0029] Through the above technical solution, the pressure stick and the pressure stick seat are detachably connected, which can facilitate the maintenance and replacement of the pressure stick. The maintenance work is to rotate the angle of the pressure stick to avoid it being in the same position for a long time for experiment; The arc surface can provide a larger force-bearing surface for the pressure-applying rod.

[0030] A rectangular sink 2019 is formed in the middle of the lower end of the pressure seat 2012; The compression test assembly 202 includes a rectangular connecting seat 2021 inserted into a rectangular groove 2019, and the rectangular connecting seat 2021 is connected to the pressure seat 2012 through a plurality of first screws 2025; a pressure platform 2022 is fixed on the rectangular connecting seat 2021, and the pressure platform 2022 is connected to the pressure platform 2024 through a plurality of second screws 2023.

[0031] The pressure-applying platform 2024 and the pressure-resistant platform 301 are circular in shape and are coaxially arranged.

[0032] The rectangular connection seat can be inserted into the rectangular groove to position the rectangular connection seat; the rectangular connection seat and the pressure seat are connected by the first screw, so that the compression test assembly 202 can be easily removed from the flexural test assembly; When performing a compression test, the pressure seat drives the rectangular connecting seat to move downward, and the rectangular connecting seat drives the pressure platform to move downward through the pressure platform seat, and the lower end surface of the pressure platform is pressed against the curb to perform a compression test on the curb.

[0033] The upper end height of the anti-bending pressure rod 302 is higher than the upper end height of the anti-compression pressure platform 301. The height of the anti-bending pressure rod is higher than the height of the anti-compression pressure platform, so that the anti-bending pressure rod does not need to overflow the anti-compression pressure platform during the anti-bending test, thereby facilitating the operation.

[0034] The anti-bending pressure rod 302 is connected to the pressure rod seat 303, the pressure rod seat 303 is inserted into the limit slot 3041 of the movable seat 304, the middle part of the limit slot 3041 is sleeved with a second pin 305, and the second pin 305 is inserted into the middle part of the pressure rod seat 303; The movable seat 304 is disposed on the supporting base 101 of the frame 10 .

[0035] The pressure rod seat can be flipped at a small angle on the moving seat through the second pin shaft, so that the lower end surface of the curb can contact the anti-bending pressure rod in line contact rather than point contact, which can further improve the test accuracy.

[0036] The support base 101 is formed with two parallel T-shaped grooves 102; Two screw rods 308 are sleeved on the movable seat 304 . The upper ends of the screw rods 308 are screwed with locking nuts 306 . The lower ends of the screw rods 306 are fixed with T-shaped blocks 307 . The T-shaped blocks 307 are inserted into the T-shaped slots 102 .

[0037] Loosen the locking nut, the T-block can move in the T-slot, and the T-block drives the moving seat to move through the screw, so that the position of the moving seat can be adjusted to adapt to the bending resistance test of curbstones of different lengths.

[0038] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications of the above assumptions should also be regarded as the scope of protection of the present invention.

Claims

1. A special machine for testing the compression and flexural strength of curbstones, comprising a frame (10), characterized in that: The frame (10) is provided with a pressure-applying mechanism (20) and a pressure-bearing mechanism (30) arranged up and down; The pressure-applying mechanism (20) comprises a flexural test assembly (201) and a compression test assembly (202) detachably connected to the flexural test assembly (201); the flexural test assembly (201) comprises a pressure-applying rod (2016); and the compression test assembly (202) comprises a pressure-applying platform (2024); The pressure-bearing mechanism (30) comprises a pressure-resistant pressure-bearing platform (301) and a pair of anti-bending pressure-bearing rods (302) arranged on both sides of the pressure-resistant pressure-bearing platform (301).

2. The special machine for curbstone compression and flexure testing according to claim 1, characterized in that: The flexural test assembly (201) comprises a hydraulic cylinder (2011) fixed to the upper end of the frame (10); a pressure seat (2012) is fixed to the end of the telescopic rod of the hydraulic cylinder (2011); a rectangular long groove (2013) with a lower opening is formed in the middle of the pressure seat (2012); a pressure rod seat (2014) is sleeved in the rectangular long groove (2013); the middle of the pressure rod seat (2014) is sleeved on the support pin (2015); and the support pin (2015) is sleeved on the pressure seat (2012); The pressure rod (2016) is connected to the pressure rod base (2014).

3. The special machine for curbstone compression and flexure testing according to claim 2, characterized in that: The lower end of the pressure rod seat (2014) is formed with an arc surface (2017) that matches the pressure rod (2016), and the upper side wall of the pressure rod (2016) is attached to the arc surface (2017); The two ends of the pressure stick (2016) are inserted into the connecting block (2018), and the connecting block (2018) is fixed to the end of the pressure stick base (2014) by means of screws.

4. The special machine for curbstone compression and flexure testing according to claim 2, characterized in that: A rectangular sink (2019) is formed in the middle of the lower end of the pressure seat (212); The compression test assembly (202) comprises a rectangular connecting seat (2021) inserted into a rectangular sink groove (219), and the rectangular connecting seat (2021) is connected to a pressure seat (212) via a plurality of first screws (2025); a pressure platform seat (2022) is fixed to the rectangular connecting seat (2021), and the pressure platform seat (2022) is connected to a pressure platform (224) via a plurality of second screws (2023).

5. The special machine for curbstone compression and flexure testing according to claim 4, characterized in that: The pressure-applying platform (2024) and the pressure-resistant and pressure-bearing platform (301) are circular in shape and are coaxially arranged.

6. The special machine for curbstone compression and flexure testing according to claim 1, characterized in that: The height of the upper end of the anti-bending pressure bearing rod (302) is higher than the height of the upper end surface of the anti-compression pressure bearing platform (301).

7. The special machine for curbstone compression and flexure testing according to claim 1, characterized in that: The anti-bending pressure-bearing rod (302) is connected to the pressure-bearing rod seat (303), the pressure-bearing rod seat (303) is inserted into the limiting slot (3041) of the movable seat (304), the middle part of the limiting slot (3041) is sleeved with a second pin shaft (305), and the second pin shaft (305) is inserted into the middle part of the pressure-bearing rod seat (303); The movable seat (304) is arranged on a supporting base (101) of the frame (10).

8. The special machine for curbstone compression and flexure testing according to claim 7, characterized in that: The support base (101) is formed with two parallel T-shaped grooves (102); Two screw rods (308) are sleeved on the movable seat (304), the upper ends of the screw rods (308) are screwed with locking nuts (306), the lower ends of the screw rods (308) are fixed with T-shaped blocks (307), and the T-shaped blocks (307) are inserted into the T-shaped slots (102).

Images