Highway pavement test piece performance detection equipment

Abstract

The utility model relates to the technical field of highway pavement test piece performance, and discloses highway pavement test piece performance detection equipment which comprises a support, a motor is fixedly connected to the top of the left side of the support, a connecting rod is fixedly connected to the top of the inner side of the support, and first bevel gears are fixedly connected to the left end and the right end of the connecting rod. The bottom ends of the two first bevel gears are both connected with second bevel gears in an engaged mode, the bottoms of the two second bevel gears are both fixedly connected with threaded rods, and a connecting plate is fixedly connected between every two adjacent threaded rods. The motor is started, the output end of the motor rotates to drive the connecting rod to rotate, the first bevel gears at the two ends of the connecting rod rotate along with the motor, the first bevel gears are meshed with the second bevel gears, rotation is transmitted to the second bevel gears, the bottom threaded rod rotates, the connecting plate and the hammerhead move up and down, the hammerhead penetrates through the round hole to impact the ground, and therefore the purposes that the equipment structure is reduced, and cost is reduced are achieved. And the detection of the highway pavement is facilitated.

Description

Technical Field

[0001] This utility model relates to the field of highway pavement performance technology, and in particular to a highway pavement performance testing device. Background Technology

[0002] Highway pavement test specimen performance testing equipment is a professional instrument used to test the performance of highway pavement material specimens. It plays an important role in evaluating highway pavement quality and ensuring road safety and durability. By applying axial pressure to the specimens, it simulates the vehicle load conditions that the pavement bears during actual use.

[0003] Highway pavement test specimen performance testing equipment uses a hydraulic system and mechanical loading device to apply pressure to the specimen at a certain loading rate until the specimen fails. When testing cement concrete pavement test specimens, the loading rate is specified in the relevant standards, the maximum pressure value at which the specimen fails is recorded, and then the compressive strength is calculated based on the size of the specimen.

[0004] In existing highway pavement test specimen performance testing equipment, because the testing equipment needs to have a large enough space to accommodate the specimen and ensure that the specimen is placed stably during the testing process, a large number of hydraulic structures are needed to control the lifting and lowering of the counterweight column, thereby controlling the lifting of the counterweight column and using gravitational potential energy to control the hammer head at the bottom to impact it. This results in structural abscesses and is not conducive to the testing of highway pavement. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a highway pavement test specimen performance testing device, which aims to improve the problem that the large structure of the existing technology is not conducive to the testing and use of highway pavement.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a highway pavement performance testing device, comprising a bracket, a motor fixedly connected to the top left side of the bracket, a connecting rod fixedly connected to the top inner side of the bracket, bevel gear 1 fixedly connected to both the left and right ends of the connecting rod, bevel gear 2 meshing with the bottom ends of the two bevel gear 1, threaded rods fixedly connected to the bottom of the two bevel gear 2, a connecting plate fixedly connected between adjacent threaded rods, a hammer head fixedly connected to the bottom of the connecting plate, a circular hole opened at the bottom of the bracket, and a locking mechanism provided at the bottom of the bracket.

[0007] The above technical solution provides a placement position for other components. The motor is fixed on the top left side of the bracket. When the motor is started, its output end rotates, driving the connecting rod to rotate. This causes the first bevel gear at both ends of the connecting rod to rotate as well. The first bevel gear meshes with the second bevel gear, transmitting the rotation to the second bevel gear, which in turn drives the threaded rod at its bottom to rotate. The connecting plate between the two threaded rods and the hammer head fixed at the bottom of the connecting plate move up and down with the rotation of the threaded rod due to the screw drive principle, allowing the hammer head to pass through the round hole and impact the ground. This reduces the size of the equipment and is beneficial for the inspection of highway pavement.

[0008] As a further description of the above technical solution:

[0009] The engaging mechanism includes multiple hinges, the bottoms of which are fixedly connected to the front and rear sides of the bottom of the bracket. Each hinge has a support plate fixedly connected to its front side. T-slots are provided on the top left and right sides of the two support plates. Fixing blocks are fixedly connected to the left and right ends of the front and rear sides of the bracket. Springs are fixedly connected to the left and right sides of the fixing blocks. Baffles are provided on the left and right sides of the fixing blocks. A fixing post is fixedly connected to the left side of the baffles.

[0010] Through the above technical solution: the bottom of multiple hinges is fixedly connected to the front and rear sides of the bottom of the bracket, and its front side is fixed to the support plate, allowing the support plate to rotate flexibly. By rotating the support plate, its T-slot contacts the baffle and the fixed column. The obstruction of the T-slot generates a squeezing force, compressing the spring, and the baffle and the fixed column move into the fixed block. When the support plate rotates to the appropriate position, so that the baffle and the fixed column correspond to the T-slot, the spring pushes the baffle to pop out, and the baffle engages with the T-slot, thereby increasing the contact area between the device and the ground and improving stability.

[0011] As a further description of the above technical solution:

[0012] A mounting base is fixedly connected to the top front side of the bracket, and an alarm light is fixedly connected to the front side of the mounting base.

[0013] The above technical solution involves fixing an alarm light on the top front bracket, which can promptly issue an alarm when the ground is about to break.

[0014] As a further description of the above technical solution:

[0015] A lamp holder is fixedly connected to the top left side of the front support plate, and a lighting lamp is fixedly connected to the top of the lamp holder.

[0016] The above technical solution involves fixing a light fixture on the top left side of the front support plate to provide illumination when there is insufficient light or poor visibility, thus facilitating work.

[0017] As a further description of the above technical solution:

[0018] The bottom of the bracket is fixedly connected with multiple anti-slip strips, all of which are rounded.

[0019] The above technical solution involves multiple anti-slip strips connected to the bottom of the bracket. These anti-slip strips are all smoothly designed, which increases the friction with the ground and prevents the machine from moving due to vibration when it is started.

[0020] As a further description of the above technical solution:

[0021] A second support plate is fixedly connected to the top left side of the bracket, and multiple support rods are fixedly connected to the bottom of the second support plate.

[0022] The above technical solution involves fixing a second support plate to the top left side of the bracket, with multiple support rods at the bottom of the second support plate providing stable support for the motor.

[0023] As a further description of the above technical solution:

[0024] A dustproof box is fixedly connected to the top of the second support plate, and ventilation openings are provided on both the front and rear sides of the dustproof box.

[0025] Through the above technical solution: the dustproof box at the top of the support plate can protect the motor and prevent dust from entering the motor, and the ventilation openings on the front and rear sides of the dustproof box facilitate air circulation.

[0026] As a further description of the above technical solution:

[0027] A fan is fixedly connected to the top left side of the dustproof box, and screws are threaded to the four corners of the fan.

[0028] The above technical solution involves a fan located on the top left side of the dustproof box. Its four corners are fixed with screws. When the fan rotates, it can promote the circulation of air inside the dustproof box, carrying away the heat generated by the motor and ensuring the normal operation of the motor.

[0029] This utility model has the following beneficial effects:

[0030] 1. In this utility model, the motor starts and its output end rotates, driving the connecting rod to rotate. This causes the first bevel gear at both ends of the connecting rod to rotate as well. The first bevel gear meshes with the second bevel gear, transmitting the rotation to the second bevel gear, which in turn drives the threaded rod at its bottom to rotate. The connecting plate between the two threaded rods and the hammer head fixed at the bottom of the connecting plate move up and down with the rotation of the threaded rod due to the screw drive principle, allowing the hammer head to pass through the round hole and impact the ground. This reduces the size of the equipment and is beneficial for the inspection of highway pavement.

[0031] 2. In this utility model, by rotating the first support plate, its T-slot contacts the baffle and the fixed column. The obstruction of the T-slot generates a squeezing force, compressing the spring. The baffle and the fixed column move into the fixed block. When the first support plate rotates to the appropriate position, so that the baffle and the fixed column correspond to the T-slot, the spring pushes the baffle to pop out, and the baffle engages with the T-slot, thereby increasing the contact area between the device and the ground and improving stability. Attached Figure Description

[0032] Figure 1 This is a perspective view of a highway pavement test specimen performance testing device proposed in this utility model;

[0033] Figure 2 This is a rear view of a highway pavement performance testing device proposed in this utility model;

[0034] Figure 3 This is a left view of a highway pavement performance testing device proposed in this utility model;

[0035] Figure 4 This is a schematic diagram of the motor structure of a highway pavement test specimen performance testing device proposed in this utility model;

[0036] Figure 5 This is a schematic diagram of the structure of the fixed column of a highway pavement performance testing device proposed in this utility model.

[0037] Legend:

[0038] 1. Bracket; 2. Engaging mechanism; 201. Hinge; 202. Support plate one; 203. T-slot; 204. Fixing block; 205. Spring; 206. Baffle; 207. Fixing column; 3. Motor; 4. Connecting rod; 5. Bevel gear one; 6. Bevel gear two; 7. Threaded rod; 8. Connecting plate; 9. Hammer head; 10. Round hole; 11. Fixing base; 12. Alarm light; 13. Lamp holder; 14. Lighting lamp; 15. Anti-slip strip; 16. Support plate two; 17. Support rod; 18. Dustproof box; 19. Ventilation opening; 20. Fan; 21. Screw. Detailed Implementation

[0039] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0040] Reference Figure 1 and Figure 4This utility model provides an embodiment of a highway pavement performance testing device, including a bracket 1 for placing the device. A motor 3 is fixedly connected to the top left side of the bracket 1, and a connecting rod 4 is fixedly connected to the top inner side of the bracket 1. The connecting rod 4 is connected to the output end of the motor 3. Both ends of the connecting rod 4 are fixedly connected to bevel gear 1 5. The bottom ends of the two bevel gear 1 5 are meshed with bevel gear 2 6. The rotation of the connecting rod 4 causes the bevel gear 1 5 to rotate, which in turn drives the bevel gear 2 6 to rotate. The bottom of the two bevel gear 2 6 is fixedly connected to threaded rods 7. The rotation of the bevel gear 2 6 drives the threaded rods 7 to rotate. A connecting plate 8 is fixedly connected between adjacent threaded rods 7. A hammer head 9 is fixedly connected to the bottom of the connecting plate 8, allowing the connecting plate 8 and the hammer head 9 to move up and down. A round hole 10 is provided at the bottom of the bracket 1, through which the hammer head 9 can impact the ground. A locking mechanism 2 is provided at the bottom of the bracket 1.

[0041] Specifically, bracket 1 provides a placement position for other components. Motor 3 is fixed to the top left side of bracket 1. Connecting rod 4 on the top inner side of bracket 1 connects the output end of motor 3 to it. When motor 3 starts, the rotation of its output end can be smoothly transmitted to connecting rod 4. Bevel gear 1 5 is fixed at both ends of connecting rod 4. As connecting rod 4 rotates, bevel gear 1 5 also rotates. The meshing connection between bevel gear 1 5 and bevel gear 2 6 causes bevel gear 2 6 to start rotating under the drive of bevel gear 1 5. The threaded rod 7 at the bottom of bevel gear 2 6 then rotates under its drive. Connecting plate 8 between the two threaded rods 7 connects them together, and hammer head 9 at the bottom of connecting plate 8 moves together with them. Since bracket 1 has a round hole 10 at the bottom, hammer head 9 can move up and down and impact the ground through the round hole 10.

[0042] Reference Figure 1 and Figure 5 The engaging mechanism 2 includes multiple hinges 201. The bottom of each hinge 201 is fixedly connected to the front and rear sides of the bottom of the bracket 1. Each hinge 201 has a support plate 202 fixedly connected to its front side for connecting the support plate 202 so that it can rotate. T-slots 203 are provided on the top left and right sides of each support plate 202. Fixing blocks 204 are fixedly connected to the front and rear sides and left and right ends of the bracket 1. Springs 205 are fixedly connected to the left and right sides of each fixing block 204. Baffles 206 are provided on the left and right sides of each fixing block 204. A fixing post 207 is fixedly connected to the left side of each baffle 206. When the support plate 202 is rotated, the baffles 206 and the fixing post 207 enter the interior of the fixing block 204 through the compression of the springs 205. When engaged, the baffles 206 engage the T-slots 203 through the elastic force of the springs 205.

[0043] Specifically, the bottoms of multiple hinges 201 are fixedly connected to the front and rear sides of the bottom of the bracket 1, and their front sides are fixed to the support plate 202, allowing the support plate 202 to rotate flexibly. T-slots 203 are opened on the top left and right sides of the two support plates 202, and there are fixing blocks 204 on the front and rear left and right ends of the bracket 1. Springs 205 are fixed on the left and right sides of each fixing block 204, and baffles 206 are also provided on the left and right sides. There is a fixing post 207 on the left side of the baffle 206. When the support plate 202 is rotated, the baffle 206 and the fixing post 207 will be subjected to compressive force during the contact with the T-slots 203, thereby compressing the springs 205 and moving them into the fixing blocks 204. When they are engaged, the elastic force of the springs 205 will cause the baffle 206 to pop out and engage with the T-slots 203, thereby increasing the support area and improving stability.

[0044] Reference Figure 1 and Figure 2 A fixed base 11 is fixedly connected to the top front side of the bracket 1. An alarm light 12 is fixedly connected to the front side of the fixed base 11 to sound an alarm when the ground is about to break. A lamp holder 13 is fixedly connected to the top left side of the front support plate 1 202. A lighting lamp 14 is fixedly connected to the top of the lamp holder 13 for illumination when visibility is poor. Multiple anti-slip strips 15 are fixedly connected to the bottom of the bracket 1. All anti-slip strips 15 are rounded to prevent the machine from moving when it is started.

[0045] Specifically, an alarm light 12 is fixed on the mounting base 11 at the top front of the bracket 1, which can sound an alarm in time when the ground is close to breaking. A lighting light 14 is fixed on the lamp holder 13 on the top left side of the front support plate 202, which provides illumination when the light is insufficient or the vision is unclear. Multiple anti-slip strips 15 are connected to the bottom of the bracket 1. The anti-slip strips 15 are all rounded, which increases the friction with the ground and prevents the machine from moving accidentally due to vibration or other reasons when it is started. It also avoids damage to the ground due to the sharp shape of the anti-slip strips 15.

[0046] Reference Figure 2 and Figure 3 Support plate 2 16 is fixedly connected to the top left side of bracket 1. Multiple support rods 17 are fixedly connected to the bottom of support plate 2 16 to support motor 3. Dustproof box 18 is fixedly connected to the top of support plate 2 16. Ventilation openings 19 are provided on the front and rear sides of dustproof box 18 to protect motor 3. Fan 20 is fixedly connected to the top left side of dustproof box 18. Screws 21 are threadedly connected to the four corners of fan 20 to dissipate heat from motor 3.

[0047] Specifically, a support plate 16 is fixed to the top left side of the bracket 1. Multiple support rods 17 at the bottom of the support plate 16 provide stable support for the motor 3. The dustproof box 18 at the top of the support plate 16 protects the motor 3. The ventilation openings 19 on the front and rear sides of the dustproof box 18 facilitate air circulation. The fan 20 located at the top left side of the dustproof box 18 is fixed at its four corners by screws 21. When the fan 20 rotates, it can promote the air circulation in the dustproof box 18, remove the heat generated by the motor 3, ensure the normal operation of the motor 3, and extend the service life of the motor 3.

[0048] Working principle: The bracket 1 provides the installation position for the components. The motor 3 is installed on the top left side of the bracket 1. When the motor 3 starts, its output end starts to rotate, driving the connecting rod 4 to rotate. The first bevel gear 5 is located at the left and right ends of the connecting rod 4 and rotates with the connecting rod 4. The first bevel gear 5 and the second bevel gear 6 mesh with each other, so that the rotation of the first bevel gear 5 is transmitted to the second bevel gear 6. The bottom of the second bevel gear 6 is connected to the threaded rod 7. The rotation of the second bevel gear 6 drives the threaded rod 7 to rotate. The two threaded rods 7 are connected by the connecting plate 8. The bottom of the connecting plate 8 is fixed with the hammer head 9. When the threaded rod 7 rotates, due to the screw drive principle, the connecting plate 8 will move in the vertical direction, thereby driving the hammer head 9 to move up and down. When the hammer head 9 moves up and down under the drive of the connecting plate 8, the hammer head 9 can pass through the round hole 10 and impact the ground, thereby reducing the structure of the equipment and facilitating its use in the inspection of highway pavement.

[0049] Furthermore, multiple hinges 201 connect the bracket 1 and the support plate 202, allowing the support plate 202 to rotate flexibly around the hinges 201. When the support plate 202 rotates, the T-slot 203 at its top contacts the baffle 206 and the fixing post 207. Due to the obstruction of the T-slot 203, a squeezing force is generated on the baffle 206 and the fixing post 207, causing the spring 205 to be compressed. The baffle 206 and the fixing post 207 then move into the fixing block 204. When the support plate 202 rotates to the appropriate position, that is, when the baffle 206 and the fixing post 207 correspond to the T-slot 203, the spring 205 pushes the baffle 206 to pop out, causing the baffle 206 to engage with the T-slot 203, thereby increasing the contact area between the device and the ground and improving stability.

[0050] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A performance testing device for highway road test specimens, comprising a support frame (1), characterized in that: A motor (3) is fixedly connected to the top left side of the bracket (1). A connecting rod (4) is fixedly connected to the top inner side of the bracket (1). A bevel gear (5) is fixedly connected to both the left and right ends of the connecting rod (4). A bevel gear (6) is meshed with the bottom ends of the two bevel gears (5). A threaded rod (7) is fixedly connected to the bottom of the two bevel gears (6). A connecting plate (8) is fixedly connected between the adjacent threads (7). A hammer (9) is fixedly connected to the bottom of the connecting plate (8). A round hole (10) is opened at the bottom of the bracket (1). A locking mechanism (2) is provided at the bottom of the bracket (1).

2. The highway pavement test specimen performance testing equipment according to claim 1, characterized in that: The engaging mechanism (2) includes multiple hinges (201). The bottom of each hinge (201) is fixedly connected to the front and rear sides of the bottom of the bracket (1). Each hinge (201) has a support plate (202) fixedly connected to its front side. T-slots (203) are provided on the top left and right sides of the two support plates (202). Fixing blocks (204) are fixedly connected to the front and rear left and right ends of the bracket (1). Springs (205) are fixedly connected to the left and right sides of each fixing block (204). Baffles (206) are provided on the left and right sides of each fixing block (204). A fixing post (207) is fixedly connected to the left side of each baffle (206).

3. The highway pavement test specimen performance testing equipment according to claim 1, characterized in that: A fixing seat (11) is fixedly connected to the top front side of the bracket (1), and an alarm light (12) is fixedly connected to the front side of the fixing seat (11).

4. The highway pavement test specimen performance testing equipment according to claim 2, characterized in that: A lamp holder (13) is fixedly connected to the top left side of the front support plate (202), and a lighting lamp (14) is fixedly connected to the top of the lamp holder (13).

5. The highway pavement test specimen performance testing equipment according to claim 1, characterized in that: The bottom of the bracket (1) is fixedly connected with multiple anti-slip strips (15), all of which are rounded.

6. The performance testing equipment for highway pavement test specimens according to claim 1, characterized in that: The support plate 2 (16) is fixedly connected to the top left side of the bracket (1), and multiple support rods (17) are fixedly connected to the bottom of the support plate 2 (16).

7. The performance testing equipment for highway pavement test specimens according to claim 6, characterized in that: The top of the second support plate (16) is fixedly connected to a dustproof box (18), and ventilation openings (19) are provided on the front and rear sides of the dustproof box (18).

8. The performance testing equipment for highway pavement test specimens according to claim 7, characterized in that: A fan (20) is fixedly connected to the top left side of the dustproof box (18), and screws (21) are threaded to the four corners of the fan (20).

Images