Bonding layer torsional shear detection device

Abstract

The utility model relates to the technical field of road detection, and discloses a bonding layer torsional shear detection device which comprises a connecting seat and a torsional shear rod and further comprises a mounting seat, a sliding block is arranged on the mounting seat in a sliding mode, and a driving assembly used for driving the sliding block to slide in the arc direction is arranged on the mounting seat. A fixing assembly used for fixing the torsional shear rod is arranged on the sliding block, when the driving assembly drives the sliding block to slide, the torsional shear rod can rotate along with sliding of the sliding block, and the torsional shear device has the effect that the torsional shear rod can be controlled to be in a horizontal state all the time when rotating.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of road detection, and in particular to a cohesive layer torsion shear detection device. BACKGROUND

[0002] In the field of road traffic, the quality of the cohesive layer is a key factor to ensure the service life and safety of the road; therefore, it is crucial to detect the torsion shear of the cohesive layer.

[0003] At present, there are cohesive layer torsion shear detection devices on the market, and the detection device mainly comprises a torsion shear rod and a connecting seat, the torsion shear rod has a detection head at one end, and the connecting seat is provided with a detection slot for inserting the detection head; during detection, the connecting seat is fixed on the road surface by adhesion, the detection head is inserted into the detection slot, then a force perpendicular to the length direction of the torsion shear rod is uniformly applied to the torsion shear rod to drive the torsion shear rod to rotate, so as to detect the torsion shear force of the cohesive layer, and a display screen is arranged on the torsion shear rod to realize real-time detection of the torsion shear force.

[0004] For the related technology in the above, the torsion shear force is detected by manually rotating the shear rod, which is convenient to operate, but it is difficult to ensure that the applied force is always perpendicular to the torsion shear rod, so it is difficult to ensure that the torsion shear rod is always in a horizontal state when rotating, resulting in inaccurate measurement results. CONTENT OF THE INVENTION

[0005] In order to control the torsion shear rod to be always in a horizontal state when rotating, the present application provides a cohesive layer torsion shear detection device.

[0006] The present application provides a cohesive layer torsion shear detection device, which adopts the following technical solution:

[0007] A cohesive layer torsion shear detection device comprises a connecting seat and a torsion shear rod, and further comprises a mounting seat, a sliding block is slidably arranged on the mounting seat, and a driving assembly for driving the sliding block to slide in an arc direction is arranged on the mounting seat, a fixing assembly for fixing the torsion shear rod is arranged on the sliding block, and when the driving assembly drives the sliding block to slide, the torsion shear rod can rotate with the sliding block.

[0008] By adopting the above technical solution, the driving assembly drives the sliding block to slide in an arc shape, so as to drive the torsion shear rod fixed on the sliding block to rotate; at the same time, the fixing assembly fixes the torsion shear rod on the sliding block, which can limit the movement of the torsion shear rod relative to the sliding block, so as to make the rod body always in a horizontal state during rotation.

[0009] Optionally, a guide block is arranged on the sliding block, a guide groove is formed in the mounting seat for sliding of the guide block, the guide groove extends along the sliding direction of the sliding block, and when the guide block slides into the guide groove, the sliding block is limited to move upward.

[0010] By adopting the technical scheme, the stability of the sliding block can be enhanced, the deviation or shaking during sliding can be prevented, and the stability and precision of the torsion-shear rod rotation can be ensured.

[0011] Optionally, the sliding block is provided with a clamping groove for clamping the torsion-shear rod, the clamping groove extends upward through the upper surface of the sliding block, and the fixing assembly can limit the upward movement of the torsion-shear rod.

[0012] By adopting the technical scheme, the sliding block is provided with a clamping groove for clamping the torsion-shear rod, and the upward movement of the torsion-shear rod is limited by the fixing assembly, so that the torsion-shear rod can be effectively fixed, the falling or loosening during testing can be prevented, and the continuity and safety of testing can be ensured.

[0013] Optionally, the fixing assembly comprises a fixing rod slidingly arranged on the sliding block and a holding block arranged at one end of the fixing rod, the sliding block is provided with an insertion groove on the side wall away from the clamping groove and away from the fixing rod for inserting the end of the fixing rod, and when the fixing rod is inserted from one end of the sliding block, passes through the clamping groove and is inserted into the insertion groove, the side wall of the fixing rod abuts against the upper end of the side wall of the torsion-shear rod.

[0014] By adopting the technical scheme, the holding block is controlled, the fixing rod is passed through one side of the sliding block and inserted into the clamping groove, and the upward movement of the torsion-shear rod can be limited, so that the operation is convenient and fast.

[0015] Optionally, the fixing assembly further comprises a spring arranged between the sliding block and the holding block, and when the fixing rod is inserted into the insertion groove, the spring is in a stretched state.

[0016] By adopting the technical scheme, the fixing effect is enhanced by the elastic force of the spring, the loosening caused by vibration or external force is prevented, and the stability of testing is improved.

[0017] Optionally, a positioning ring is coaxially arranged on the torsion-shear rod, a positioning groove for clamping the positioning ring is arranged on the sliding block, the positioning groove is in communication with the clamping groove, and when the fixing rod passes through the clamping groove and is inserted into the insertion groove, the side wall of the fixing rod abuts against the upper end of the side wall of the positioning ring.

[0018] By adopting the technical scheme, the positioning ring is arranged on the torsion-shear rod, cooperates with the positioning groove on the sliding block, and assists in fixing, so that the user can quickly position the installation position of the torsion-shear rod, and the operation convenience is improved.

[0019] Optionally, the driving assembly comprises a motor, a transmission shaft, a gear and a rack, the rack is installed in the positioning seat, and the rack extends in the same direction as the sliding direction of the sliding block, the gear is coaxially fixed on the transmission shaft, the motor is arranged on the sliding block, and the output end of the motor is connected with the transmission shaft, the gear is engaged with the rack, and the installation seat is provided with a gap groove for sliding of the gear.

[0020] By adopting the above technical scheme, the driving assembly adopts the combination of the motor, the transmission shaft, the gear and the rack, the arc-shaped sliding of the sliding block is realized, the automation degree is high, the sliding speed and distance of the sliding block can be accurately controlled, the rotating speed of the torsion shear rod can be controlled, and the monitoring effect is further improved.

[0021] Optionally, the lower surface of the installation seat is provided with an anti-skid pad.

[0022] By adopting the above technical scheme, the stability of the device in the test process is enhanced, the test error caused by sliding or vibration is prevented, and the accuracy of the test is improved.

[0023] To sum up, the present application has at least one of the following beneficial effects:

[0024] 1. The horizontal sliding of the sliding block is controlled, and the torsion shear rod can be rotated along the horizontal direction;

[0025] 2. The sliding speed of the sliding block is controlled by cooperation of the motor, the gear and the rack, so that the rotating speed of the torsion shear rod is controlled. BRIEF DESCRIPTION OF DRAWINGS

[0026] Figure 1 is a structural schematic diagram of an embodiment of the present application;

[0027] Figure 2 is an exploded structural schematic diagram of the fixing assembly;

[0028] Figure 3 is a sectional structural schematic diagram of the installation seat.

[0029] Mark explanation: 1, connecting seat; 2, torsion shear rod; 21, positioning ring; 3, installation seat; 31, guide groove; 4, sliding block; 41, guide block; 42, clamping groove; 43, insertion groove; 44, positioning groove; 5, driving assembly; 51, motor; 52, transmission shaft; 53, gear; 54, rack; 6, fixing assembly; 61, fixing rod; 62, holding block; 63, spring; 7, anti-skid pad. DETAILED DESCRIPTION

[0030] The following will be described in detail in combination with the accompanying Figures 1-3 The present application will be further described in detail.

[0031] The embodiment of the application discloses a kind of adhesive layer torsion shear detection devices. Refer to Figure 1 , torsion shear detection device includes torsion shear rod 2, connecting seat 1 and mounting seat 3, wherein, connecting seat 1 is fixed on road surface by bonding, and detection groove is opened on the upper surface of connecting seat 1;Torsion shear rod 2 is circular rod, and preferably metal rod, and one end of torsion shear rod 2 is fixed with detection head, and the cross section of detection head is polygon, and detection head can be inserted into detection groove;Mounting seat 3 is placed on one side of connecting seat 1, and sliding block 4 is arranged on mounting seat 3, and driving assembly 5 for driving sliding block 4 to slide along arc direction is arranged, and fixing assembly 6 for fixing torsion shear rod 2 is arranged on sliding block 4.

[0032] When using, first, connecting seat 1 is fixed on road surface, then mounting seat 3 is placed in proper direction, then detection head on torsion shear rod 2 is inserted into detection groove, and the other end of torsion shear rod 2 is fixed on sliding block 4, and torsion shear rod 2 is in horizontal state, sliding block 4 is driven to slide by driving assembly 5, and torsion shear rod 2 is fixed by fixing assembly 6, so as to drive torsion shear rod 2 to rotate, to control torsion shear rod 2 to always be in horizontal state when rotating. Preferably, anti-skid pad 7 can be fixed on the lower surface of mounting seat 3, and is made of rubber or other materials, which can protect mounting seat 3 and increase friction between mounting seat 3 and road, so as to reduce the possibility of sliding of mounting seat 3 during use.

[0033] Refer to Figure 1 and Figure 2 In the embodiment, guiding block 41 is fixed on the lower surface of sliding block 4, and the cross section of guiding block 41 is preferably T-shaped, and can also be trapezoidal structure with small upper surface and large lower surface, guiding groove 31 for sliding of guiding block 41 is opened on mounting seat 3, and guiding groove 31 is also arc-shaped groove, and the sliding direction of guiding groove 31 is same as that of guiding block 41;So as to control the sliding direction of sliding block 4 by cooperation of guiding block 41 and guiding groove 31, and simultaneously limit upward sliding of sliding block 4 from mounting seat 3. Preferably, guiding block 41 is arranged on both sides of the lower surface of sliding block 4, so as to further improve the stability of sliding block 4 when sliding.

[0034] Refer to Figure 1 and Figure 2 In the embodiment, clamping groove 42 for clamping of torsion shear rod 2 is opened on sliding block 4, the lower end of clamping groove 42 is semicircular, and the upper end extends upwardly through the upper surface of sliding block 4, and fixing assembly 6 can limit upward movement of torsion shear rod 2, when using, torsion shear rod 2 is clamped into clamping groove 42 from top to bottom, and is fixed by fixing assembly 6, and then sliding block 4 is driven to slide, so as to drive torsion shear rod 2 to rotate.

[0035] Refer to Figure 1 and Figure 2In the embodiment, the fixing assembly 6 comprises a fixing rod 61 and a holding block 62, wherein the fixing rod 61 is slidingly arranged on the sliding block 4 in a horizontal direction, and the sliding direction of the fixing rod 61 is perpendicular to the length direction of the torsion-shear rod 2; a through hole is formed in one side wall of the sliding block 4 for the fixing rod 61 to pass through, and the through hole extends to one side wall of the clamping groove 42; a clamping groove 43 is formed in the side wall of the clamping groove 42 away from the through hole for the fixing rod 61 to be inserted into, so that the fixing rod 61 can be inserted into the clamping groove 43 after passing through the through hole and the clamping groove 42, and the lower end of the fixing rod 61 abuts against the upper end of the torsion-shear rod 2, thereby fixing the torsion-shear rod 2 in the clamping groove 42; the holding block 62 is fixed to one end of the fixing rod 61 away from the clamping groove 42, and the holding block 62 can drive the fixing rod 61 to slide.

[0036] With reference to Figure 1 and Figure 2 In the embodiment, the fixing assembly 6 further comprises a spring 63, one end of the spring 63 is fixed to the side wall of the holding block 62, and the other end of the spring 63 is fixed to the side wall of the sliding block 4, and the fixing rod 61 passes through the spring 63; when the fixing rod 61 is inserted into the clamping groove 43, the spring 63 is in a stretched state, so that the spring 63 can exert a force on the fixing rod 61 through the holding block 62, the force is always directed towards the clamping groove 42, so that the fixing rod 61 abuts against the bottom wall of the clamping groove 42, thereby improving the stability of the fixing rod 61 of the torsion-shear rod 2.

[0037] With reference to Figure 1 and Figure 2 In an optional embodiment, a positioning ring 21 can be sleeved on the outer side wall of the torsion-shear rod 2, and a positioning groove 44 is formed in the sliding block 4 for the positioning ring 21 to be clamped, the positioning groove 44 also extends upwardly to the upper surface of the sliding block 4, and the positioning groove 44 is preferably arranged at a position different from the position of the clamping groove 43; the positioning ring 21 and the positioning groove 44 can cooperate to position the torsion-shear rod 2 on the sliding block 4, which is convenient for actual operation and improves the accuracy of detection.

[0038] With reference to Figure 1 and Figure 3In the embodiment, the driving assembly 5 comprises a motor 51, a transmission shaft 52, a gear 53 and a rack 54. The rack 54 is installed inside the mounting seat 3 and is an arc-shaped strip extending in the same direction as the sliding direction of the sliding block 4. The motor 51 is fixed on the upper surface of the sliding block 4 by bolts and is arranged on one side of the torsion shear rod 2. The output end of the motor 51 extends vertically downward and is connected with the transmission shaft 52. The gear 53 is coaxially fixed on the lower end of the transmission shaft 52 and is engaged with the rack 54. Correspondingly, the mounting seat 3 is provided with a displacement slot for the movement of the gear 53 and the sliding of the transmission shaft 52. When the motor 51 is started, the gear 53 is driven to rotate by the transmission shaft 52, and the gear 53 is engaged with the rack 54, thereby driving the sliding block 4 to slide along the arc-shaped direction of the rack 54. In this way, the sliding speed and distance of the sliding block 4 can be accurately controlled, and the accuracy and repeatability of the torsion shear detection are further improved. Optionally, a control panel can be embedded on the sliding block 4 to control the start of the motor 51, so as to adjust the sliding speed and distance of the sliding block 4.

[0039] The implementation principle of the adhesion layer torsion shear detection device in the embodiment is as follows: during detection, the connecting seat 1 is first fixed on the road, then the mounting seat 3 is placed at a suitable position, then the detection head on the torsion shear rod 2 is inserted into the detection slot of the connecting seat 1, at the same time, the control holding block 62 is unlocked to fix the rod 61, then the positioning ring 21 on the torsion shear rod 2 is inserted into the positioning slot 44, the torsion shear rod 2 is clamped into the clamping slot 42, the rod 61 is loosened, and the end of the rod 61 is inserted into the slot 43; at this time, the torsion shear rod 2 is fixed, and the motor 51 can be started to drive the sliding block 4 to slide and drive the torsion shear rod 2 to rotate, thereby performing adhesion layer torsion shear detection.

[0040] The above are preferred embodiments of the present application, which do not limit the protection scope of the present application. Therefore, equivalent changes made on the basis of the structure, shape and principle of the present application should be covered within the protection scope of the present application.

Claims

1. A cohesive zone torsional shear detection device comprising a connection seat (1) and a torsional shear bar (2), characterized in that: It further comprises a mounting base (3), a sliding block (4) is arranged on the mounting base (3) in a sliding mode, and a driving assembly (5) for driving the sliding block (4) to slide in an arc direction is arranged on the mounting base (3), a fixing assembly (6) for fixing the torsion shear rod (2) is arranged on the sliding block (4), and the torsion shear rod (2) can rotate when the sliding block (4) slides when the driving assembly (5) drives the sliding block (4) to slide.

2. The bondline torsional shear detection device of claim 1, wherein: A guide block (41) is arranged on the sliding block (4), a guide groove (31) for the guide block (41) to slide is arranged on the mounting base (3), the guide groove (31) extends along the sliding direction of the sliding block (4), and the sliding block (4) is limited to move upward when the guide block (41) slides in the guide groove (31).

3. The bondline torsional shear detection device of claim 2, wherein: The sliding block (4) is provided with a clamping groove (42) for clamping the torsion shear rod (2), the clamping groove (42) extends upward through the upper surface of the sliding block (4), and the fixing assembly (6) can limit the torsion shear rod (2) to move upward.

4. The bondline torsional shear detection apparatus of claim 3, wherein: The fixing assembly (6) comprises a fixing rod (61) arranged on the sliding block (4) in a sliding mode and a holding block (62) arranged at one end of the fixing rod (61), an insertion groove (43) for inserting the end of the fixing rod (61) is arranged on the side wall of the sliding block (4) away from the clamping groove (42) and away from the fixing rod (61), the fixing rod (61) abuts against the upper end of the side wall of the torsion shear rod (2) when the fixing rod (61) is inserted from one end of the sliding block (4), passes through the clamping groove (42) and is inserted into the insertion groove (43).

5. The bondline torsional shear detection apparatus of claim 4, wherein: The fixing assembly (6) further comprises a spring (63) arranged between the sliding block (4) and the holding block (62), and the spring (63) is in a stretched state when the fixing rod (61) is inserted into the insertion groove (43).

6. The bondline torsional shear detection apparatus of claim 5, wherein: A positioning ring (21) is coaxially arranged on the torsion shear rod (2), a positioning groove (44) for clamping the positioning ring (21) is arranged on the sliding block (4), the positioning groove (44) is communicated with the clamping groove (42), and the side wall of the fixing rod (61) abuts against the upper end of the side wall of the positioning ring (21) when the fixing rod (61) passes through the clamping groove (42) and is inserted into the insertion groove (43).

7. The bondline torsional shear detection apparatus of claim 2, wherein: The driving assembly (5) comprises a motor (51), a transmission shaft (52), a gear (53) and a rack (54), the rack (54) is arranged in the mounting base (3), the extension direction of the rack (54) is the same as the sliding direction of the sliding block (4), the gear (53) is coaxially fixed on the transmission shaft (52), the motor (51) is arranged on the sliding block (4), the output end of the motor (51) is connected with the transmission shaft (52), the gear (53) is engaged with the rack (54), and a gap groove for the gear (53) to slide is arranged in the mounting base (3).

8. The bondline torsional shear detection apparatus of claim 7, wherein: An antiskid pad (7) is arranged on the lower surface of the mounting base (3).

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