Adjustable bridge expansion device test bed
Through the combination of dual-rotor motor drive and lifting components, the adjustability and practicality of the bridge expansion device test bench is improved, solving the problems of high energy consumption and observation limitations of the existing test bench.
Patent Information
- Application Number
- CN202420794120.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-17
- Publication Date
- 2025-01-03
- Estimated Expiration
- 2034-04-17
AI Technical Summary
The existing test bench for special highway bridge expansion device is energy-consuming during use, and the motor rotation is not synchronized, so the test bench cannot be raised, which limits the practicality of the experiment and the observation of the bottom of the expansion device.
The bridge expansion device is driven by a dual rotor motor to stretch and compress, and the test bench can be raised through the lifting assembly and the slider mechanism to achieve observation of the bottom of the expansion device.
It improves the practicality of the laboratory bench, enhances the comprehensive observation of the bridge expansion device and the synchronization of experimental operations, reduces energy consumption and solves the problem of rotational out-of-synchronization.
Smart Images
Figure CN222299127U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of bridge expansion and contraction device test bench accessory devices, in particular to an adjustable bridge expansion and contraction device test bench seat. Background Art
[0002] As we all know, bridge expansion devices refer to expansion devices that are usually installed between the two beam ends, between the beam ends and the abutments, or at the hinged positions of the bridge to meet the requirements of bridge deck deformation. In order to ensure the quality of the installed and used bridge expansion devices, a certain length of bridge expansion devices need to be assembled as required in the laboratory and then stretched and compressed as a whole to meet the assembly tolerance and waterproof performance test requirements of the bridge expansion devices. Generally, a special test bench for highway bridge expansion devices is used for testing. The existing special test bench for highway bridge expansion devices can basically meet the daily use needs, but there are still some shortcomings that need to be improved.
[0003] In actual use, the existing special test bench for highway bridge expansion devices generally drives the bridge expansion device to continuously stretch and compress by rotating two sets of motors at the same time. However, the simultaneous operation of the two sets of motors increases the energy consumption of the device, and there may be a problem of asynchronous rotation between the two sets of motors. In addition, the existing test bench cannot raise the expansion device, which causes limitations during the experiment, and it is impossible to observe the bottom of the expansion device on the test bench, resulting in poor practicality. Utility Model Content
[0004] In order to solve the above technical problems, the utility model provides an adjustable bridge telescopic device test bench which can be driven by a dual-rotor motor to stretch and compress the bridge telescopic device, and the test bench can raise the fixed bridge telescopic device so that the bottom of the bridge telescopic device can be observed, thereby enhancing the practicality.
[0005] The utility model discloses an adjustable bridge telescopic device test bench, comprising a base, four groups of legs are arranged at the bottom end of the base, a first cover plate assembly is arranged at the front end of the base, a first chamber is arranged inside the base, a displacement assembly is arranged inside the first chamber, the displacement assembly comprises a dual-rotor motor, two groups of first threaded rods, two groups of lifting boxes and four groups of clamping slide blocks, the bottom end of the first chamber is connected to the dual-rotor motor, two groups of output ends of the dual-rotor motor are respectively connected to the first threaded rods, the outer ends of the two groups of first threaded rods are respectively connected to the first chamber bearings, and the upper ends of the two groups of first threaded rods are respectively connected to the first chamber bearings. Slide blocks are respectively provided, a through slide groove is provided at the top of the base, the through slide groove is connected to the first chamber, two groups of slide blocks respectively pass through the through slide groove, the tops of the two groups of slide blocks are respectively connected to the lifting boxes, second chambers are respectively provided at the tops of the two groups of lifting boxes, lifting components are respectively provided in the two groups of second chambers, fixed components are provided on the tops of the lifting components, second cover plate components are respectively provided at the front ends of the two groups of lifting boxes, the bottom ends of the two groups of lifting boxes are respectively connected to the two groups of card-mounted slide blocks, two groups of card-mounted slide grooves are provided at the top of the base, and the two groups of card-mounted slide grooves are respectively slidably clamped with the two groups of card-mounted slide blocks.
[0006] Preferably, the lifting assembly includes four groups of second threaded rods, two groups of support platforms, two groups of rotating rods, two groups of first bevel gears, two groups of second bevel gears, two groups of rotating rods, and two groups of belts. The bottom ends of the two groups of second chambers are respectively connected to the two groups of second threaded rod bearings, the bottom ends of the two groups of support platforms are respectively provided with two groups of lifting threaded holes, the four groups of lifting threaded holes are respectively threadedly connected to the second threaded rods, the bottoms of the four groups of second threaded rods are respectively provided with first transmission wheels, the inner end bearings of the two groups of rotating rods are sealably inserted, the inner ends of the two groups of rotating rods are respectively connected to the first bevel gears, the two groups of first bevel gears are respectively meshed with the tooth surfaces of the second bevel gears, the bottom ends of the two groups of second bevel gears are respectively connected to the rotating rods, the bottom ends of the two groups of rotating rods are respectively connected to the second chamber bearings, the bottoms of the two groups of rotating rods are respectively provided with second transmission wheels, and the two groups of second transmission wheels are respectively connected to the two groups of first transmission wheels through belts.
[0007] Preferably, the fixing assembly includes four groups of third threaded rods, four groups of hexagonal blocks, four groups of support columns and four groups of lower pressure plates. The top ends of the two groups of support platforms are provided with mounting grooves, the top ends of the two groups of support platforms are respectively provided with two groups of first threaded holes, the four groups of first threaded holes are respectively threadedly connected to the third threaded rods, the top ends of the four groups of third threaded rods are respectively connected to the hexagonal blocks, the top ends of the four groups of hexagonal blocks are respectively connected to the support columns, and the top ends of the four groups of support columns are respectively connected to the lower pressure plate bearings.
[0008] Preferably, it further comprises two groups of rotating wheels and two groups of handle bars, the outer ends of the two groups of rotating bars are respectively connected to the rotating wheels, and the outer ends of the two groups of rotating wheels are respectively connected to the handle bar bearings.
[0009] Preferably, the first cover plate assembly includes a first cover plate and four groups of first screws, the front end of the base is provided with four groups of mounting threaded holes, the front end of the first cover plate is provided with four groups of mounting through holes, and the four groups of first screws are threadedly connected with the mounting threaded holes through the mounting through holes respectively.
[0010] Preferably, the second cover plate assembly includes two groups of second cover plates and eight groups of second screws, the front ends of the two groups of lifting boxes are respectively provided with four groups of fixed threaded holes, the front ends of the two groups of second cover plates are respectively provided with four groups of fixed through holes, and the eight groups of second screws are respectively threadedly connected with the fixed threaded holes through the fixed through holes.
[0011] Preferably, the four groups of installation through holes and the eight groups of fixing through holes are all configured as countersunk holes.
[0012] Preferably, four groups of stabilizing pads are further included, and the bottom ends of the four groups of legs are respectively connected to the stabilizing pads.
[0013] Compared with the prior art, the beneficial effects of the utility model are as follows: first, the experimental platform is placed in a suitable position through four sets of legs, and then the dual-rotor motor is started to drive the first threaded rod to rotate, and then the two sets of rotating first threaded rods drive the two sets of slide blocks to move outward, and the four sets of card-mounted slide blocks and the two sets of card-mounted slide grooves will support the bottom of the two lifting boxes, and then the two sets of bridge telescopic devices are placed in the installation grooves, and then the two sets of telescopic devices are fixed by the fixing components, and then the two sets of telescopic devices are driven to move to a suitable height by the lifting components, and then the dual-rotor motor can be used to drive the threaded rod to reverse, and then the two sets of slide blocks drive the lifting box and the support platform to the middle, so as to experiment with the bridge telescopic device, and the bottom of the telescopic device can be observed through the raised bottom of the telescopic device, so that the two sets of slide blocks and the telescopic device on the support platform are synchronously operated by the dual-rotor motor, and the telescopic device experiment can be more clearly observed in all directions, thereby enhancing practicality. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 It is a schematic diagram of the connection structure of the utility model;
[0015] Figure 2 It is a schematic diagram of the connection structure between the rotating rod and the first bevel gear of the utility model;
[0016] Figure 3 It is a schematic diagram of the connection structure between the rotating wheel and the handlebar bearing of the utility model;
[0017] Figure 4 It is a schematic diagram of the enlarged structure of the A part of the utility model;
[0018] Markings in the accompanying drawings: 1. base; 2. support leg; 3. dual-rotor motor; 4. first threaded rod; 5. slider; 6. lifting box; 7. clamping slider; 8. second threaded rod; 9. support platform; 10. first transmission wheel; 11. rotating rod; 12. first bevel gear; 13. second bevel gear; 14. rotating rod; 15. second transmission wheel; 16. belt; 17. third threaded rod; 18. hexagonal block; 19. support column; 20. lower pressure plate; 21. rotating wheel; 22. handle bar; 23. first cover plate; 24. first screw; 25. second cover plate; 26. second screw; 27. stabilizing pad; 30. first chamber; 31. second chamber. DETAILED DESCRIPTION
[0019] The following is a further detailed description of the specific implementation of the present invention 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.
[0020] like Figures 1 to 4As shown, an adjustable bridge telescopic device test bench of the utility model comprises a base 1, four groups of legs 2 are arranged at the bottom end of the base 1, a first cover plate assembly is arranged at the front end of the base 1, a first chamber 30 is arranged inside the base 1, a displacement assembly is arranged inside the first chamber 30, the displacement assembly comprises a dual-rotor motor 3, two groups of first threaded rods 4, two groups of lifting boxes 6 and four groups of clamping slide blocks 7, the bottom end of the first chamber 30 is connected to the dual-rotor motor 3, two groups of output ends of the dual-rotor motor 3 are respectively connected to the first threaded rod 4, and the two groups of first The outer ends of the threaded rods 4 are respectively connected to the bearings of the first chambers 30, and the two groups of first threaded rods 4 are respectively provided with sliders 5, and the top of the base 1 is provided with a through slide groove, which is connected to the first chamber 30, and the two groups of sliders 5 are respectively passed through the through slide groove, and the tops of the two groups of sliders 5 are respectively connected to the lifting boxes 6, and the tops of the two groups of lifting boxes 6 are respectively provided with second chambers 31, and the two groups of second chambers 31 are respectively provided with lifting components, and the tops of the lifting components are provided with fixed components, and the front ends of the two groups of lifting boxes 6 are respectively provided with second cover components, and the two groups of lifting boxes 6 are respectively provided with second cover components. The bottom ends are respectively connected with two groups of card-mounted slide blocks 7, and two groups of card-mounted slide grooves are provided at the top of the base 1, and the two groups of card-mounted slide grooves are respectively slidably carded with the two groups of card-mounted slide blocks 7; first, the experimental platform is placed in a suitable position through four groups of legs, and then the dual-rotor motor is started to drive the first threaded rod to rotate, and then the two groups of rotating first threaded rods drive the two groups of slide blocks to move outward, and the four groups of card-mounted slide blocks and the two groups of card-mounted slide grooves will support the bottom of the two lifting boxes, and then the two groups of bridge telescopic devices are placed in the installation groove, and then the two groups of telescopic devices are fixed by the fixing assembly, and then the two groups of telescopic devices are driven to move to a suitable height by the lifting assembly, and then the threaded rod can be driven to reverse by the dual-rotor motor, and then the two groups of slide blocks drive the lifting box and the support platform to the middle, so as to experiment the bridge telescopic device, and the bottom of the telescopic device can be observed through the raised bottom of the telescopic device, so that the two groups of slide blocks and the telescopic device on the support platform are synchronously operated by the dual-rotor motor, and the telescopic device experiment can be more clearly observed in all directions, thereby enhancing practicality.
[0021] As a preferred embodiment of the above embodiment, the lifting assembly includes four groups of second threaded rods 8, two groups of support platforms 9, two groups of rotating rods 11, two groups of first bevel gears 12, two groups of second bevel gears 13, two groups of rotating rods 14, and two groups of belts 16. The bottom ends of the two groups of second chambers 31 are respectively connected to the bearings of the two groups of second threaded rods 8, the bottom ends of the two groups of support platforms 9 are respectively provided with two groups of lifting threaded holes, the four groups of lifting threaded holes are respectively threadedly connected to the second threaded rods 8, the bottoms of the four groups of second threaded rods 8 are respectively provided with first transmission wheels 10, the inner end bearings of the two groups of rotating rods 11 are sealably inserted, the inner ends of the two groups of rotating rods 11 are respectively connected to the first bevel gears 12, the two groups of first bevel gears 12 are respectively meshed with the tooth surfaces of the second bevel gears 13, and the bottom ends of the two groups of second bevel gears 13 are respectively meshed with the rotating The two sets of rotating rods 14 are connected, and the bottom ends of the two sets of rotating rods 14 are respectively connected to the bearings of the second chamber 31. The bottoms of the two sets of rotating rods 14 are respectively provided with second transmission wheels 15, and the two sets of second transmission wheels 15 are respectively connected to the two sets of first transmission wheels 10 through belts 16; when the telescopic assembly is fixed on the support platform through the fixing assembly, the two sets of rotating rods are driven to rotate the two sets of first bevel gears and the second bevel gears, thereby driving the first transmission wheel and the rotating rod to rotate through the two sets of second bevel gears, and then the two sets of first transmission wheels drive the four sets of second transmission wheels to rotate through the two sets of belts, and then the four sets of second transmission wheels drive the four sets of threaded second threaded rods to rotate, so that the two sets of support platforms rise upward, thereby facilitating the observation of the bottom of the telescopic device, thereby enhancing practicality.
[0022] As a preferred embodiment of the above embodiment, the fixing assembly includes four groups of third threaded rods 17, four groups of hexagonal blocks 18, four groups of support columns 19 and four groups of lower pressure plates 20. The top ends of the two groups of support platforms 9 are provided with installation grooves, and the top ends of the two groups of support platforms 9 are respectively provided with two groups of first threaded holes, the four groups of first threaded holes are respectively threadedly connected to the third threaded rods 17, the top ends of the four groups of third threaded rods 17 are respectively connected to the hexagonal blocks 18, the top ends of the four groups of hexagonal blocks 18 are respectively connected to the support columns 19, and the top ends of the four groups of support columns 19 are respectively connected to the bearings of the lower pressure plates 20; when fixing the bridge expansion device, first place the two groups of expansion plates in the two groups of installation grooves, and then drive the four groups of hexagonal blocks to rotate by a wrench, so as to drive the four groups of third threaded rods to move downward, so as to fix the two groups of expansion plates through the four groups of lower pressure plates, thereby facilitating the operation during the bridge expansion device experiment, thereby enhancing practicality.
[0023] As a preferred embodiment of the above embodiment, two groups of rotating wheels 21 and two groups of handle bars 22 are also included, the outer ends of the two groups of rotating bars 11 are respectively connected to the rotating wheels 21, and the outer ends of the two groups of rotating wheels 21 are respectively connected to the bearings of the handle bars 22; the two groups of rotating wheels and the two groups of handle bars can be used to facilitate the rotation of the two groups of rotating wheels, thereby enhancing practicality.
[0024] As a preferred embodiment of the above embodiment, the first cover plate assembly includes a first cover plate 23 and four groups of first screws 24, the front end of the base 1 is provided with four groups of mounting threaded holes, the front end of the first cover plate 23 is provided with four groups of mounting through holes, and the four groups of first screws 24 are respectively threadedly connected with the mounting threaded holes through the mounting through holes; the first chamber can be opened and closed by the first cover plate and the four groups of first screws, thereby facilitating the repair and maintenance of the parts in the first chamber, thereby enhancing practicality.
[0025] As a preferred embodiment of the above embodiment, the second cover plate assembly includes two groups of second cover plates 25 and eight groups of second screws 26, the front ends of the two groups of lifting boxes 6 are respectively provided with four groups of fixed threaded holes, the front ends of the two groups of second cover plates 25 are respectively provided with four groups of fixed through holes, and the eight groups of second screws 26 are respectively threadedly connected with the fixed threaded holes through the fixed through holes; the two groups of second chambers can be opened and closed by the two groups of second cover plates and the eight groups of second screws, thereby facilitating the repair and maintenance of the parts in the second chamber, thereby enhancing practicality.
[0026] As a preference of the above embodiment, the four groups of installation through holes and the eight groups of fixing through holes are all configured as countersunk holes; the four groups of first screws and the eight groups of second screws can be hidden by the countersunk holes, thereby enhancing practicality.
[0027] As a preferred embodiment of the above embodiment, four groups of stabilizing pads 27 are further included, and the bottom ends of the four groups of legs 2 are respectively connected to the stabilizing pads 27; the four groups of stabilizing pads can enhance the friction and contact area of the bottom ends of the four groups of legs, thereby enhancing practicality.
[0028] The utility model discloses an adjustable bridge telescopic device test bench, and its working principle is as follows: when it is working, the test platform is first placed in a suitable position through four groups of legs and a stable pad, and then the dual-rotor motor is started to drive the first threaded rod to rotate, and then the two groups of rotating first threaded rods drive the two groups of slide blocks to move outward, and the four groups of card-mounted slide blocks and the two groups of card-mounted slide grooves will support the bottom of the two groups of lifting boxes, and then the two groups of bridge telescopic devices are placed in the installation groove, and then the four groups of hexagonal blocks are driven by a wrench to rotate the four groups of third threaded rods, thereby driving the four groups of third threaded rods to move downward, and then the two groups of telescopic devices are fixed by descending the four groups of lower pressure plates, and then the two groups of rotating rods, the two groups of first bevel gears and the second bevel gears are driven by rotating the two groups of rotating wheels and the handle rods. Rotate, thereby driving the first transmission wheel and the rotating rod to rotate through two sets of second bevel gears, and then the two sets of first transmission wheels drive four sets of second transmission wheels to rotate through two sets of belts, and then the four sets of second transmission wheels drive four sets of second threaded rods connected by thread to rotate, so that the two sets of support platforms rise upward, and then the threaded rods can be reversed by the dual-rotor motor, and then the two sets of sliders drive the lifting box and the support platform to the middle, so that the tension and compression tests of the bridge telescopic device can be carried out, and the bottom of the telescopic device can be observed through the raised bottom of the telescopic device, and the dual-rotor motor can be used to synchronize the two sets of sliders and the telescopic device on the support platform, and the telescopic device experiment can be observed more clearly in all directions, and then the data can be counted.
[0029] The terms "vertical," "horizontal," "left," "right," and the like are used herein for illustrative purposes only.
[0030] The “first”, “second” and “third” mentioned in the present invention do not represent specific quantities and orders, but are merely used to distinguish names.
[0031] 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 principle of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.
Claims
1. An adjustable bridge expansion device test bench, comprising a base (1), wherein four groups of legs (2) are arranged at the bottom end of the base (1), a first cover plate assembly is arranged at the front end of the base (1), a first chamber (30) is arranged inside the base (1), and a displacement assembly is arranged inside the first chamber (30); characterized in that: The displacement assembly comprises a dual-rotor motor (3), two groups of first threaded rods (4), two groups of lifting boxes (6) and four groups of clamping slide blocks (7); the bottom end of the first chamber (30) is connected to the dual-rotor motor (3); the two groups of output ends of the dual-rotor motor (3) are respectively connected to the first threaded rods (4); the outer ends of the two groups of first threaded rods (4) are respectively connected to the bearings of the first chamber (30); the two groups of first threaded rods (4) are respectively provided with slide blocks (5); the top end of the base (1) is provided with a through slide groove, the through slide groove is connected to the first chamber (30); the two groups of slide blocks (5) are respectively passed through the through slide grooves, the top ends of the two groups of sliders (5) are respectively connected to the lifting boxes (6), the top ends of the two groups of lifting boxes (6) are respectively provided with second chambers (31), the two groups of second chambers (31) are respectively provided with lifting components, the tops of the lifting components are provided with fixing components, the front ends of the two groups of lifting boxes (6) are respectively provided with second cover components, the bottom ends of the two groups of lifting boxes (6) are respectively connected to the two groups of clamping sliders (7), the top ends of the base (1) are provided with two groups of clamping slide grooves, and the two groups of clamping slide grooves are respectively slidably clamped with the two groups of clamping sliders (7).
2. The adjustable bridge expansion device test bench according to claim 1, characterized in that: The lifting assembly comprises four groups of second threaded rods (8), two groups of support platforms (9), two groups of rotating rods (11), two groups of first bevel gears (12), two groups of second bevel gears (13), two groups of rotating rods (14), and two groups of belts (16). The bottom ends of the two groups of second chambers (31) are respectively connected to the bearings of the two groups of second threaded rods (8). The bottom ends of the two groups of support platforms (9) are respectively provided with two groups of lifting threaded holes. The four groups of lifting threaded holes are respectively threadedly connected to the second threaded rods (8). The bottoms of the four groups of second threaded rods (8) are respectively provided with first transmission wheels (10). The two groups of rotating rods The inner end bearing seal of the two groups of rotating rods (11) is inserted, the inner ends of the two groups of rotating rods (11) are respectively connected to the first bevel gear (12), the two groups of first bevel gears (12) are respectively meshed with the tooth surfaces of the second bevel gear (13), the bottom ends of the two groups of second bevel gears (13) are respectively connected to the rotating rods (14), the bottom ends of the two groups of rotating rods (14) are respectively connected to the bearings of the second chamber (31), the bottoms of the two groups of rotating rods (14) are respectively provided with second transmission wheels (15), and the two groups of second transmission wheels (15) are respectively connected to the two groups of first transmission wheels (10) through belts (16).
3. The adjustable bridge expansion device test stand according to claim 2, characterized in that: The fixing assembly comprises four groups of third threaded rods (17), four groups of hexagonal blocks (18), four groups of support columns (19) and four groups of lower pressure plates (20); the top ends of the two groups of support platforms (9) are provided with mounting grooves; the top ends of the two groups of support platforms (9) are respectively provided with two groups of first threaded holes; the four groups of first threaded holes are respectively threadedly connected to the third threaded rods (17); the top ends of the four groups of third threaded rods (17) are respectively connected to the hexagonal blocks (18); the top ends of the four groups of hexagonal blocks (18) are respectively connected to the support columns (19); and the top ends of the four groups of support columns (19) are respectively connected to the bearings of the lower pressure plates (20).
4. The adjustable bridge expansion device test stand according to claim 3, characterized in that: It also comprises two groups of rotating wheels (21) and two groups of handle bars (22), the outer ends of the two groups of rotating bars (11) are respectively connected to the rotating wheels (21), and the outer ends of the two groups of rotating wheels (21) are respectively connected to the bearings of the handle bars (22).
5. The adjustable bridge expansion device test bench according to claim 4, characterized in that: The first cover plate assembly comprises a first cover plate (23) and four groups of first screws (24); the front end of the base (1) is provided with four groups of mounting threaded holes; the front end of the first cover plate (23) is provided with four groups of mounting through holes; the four groups of first screws (24) are respectively threadedly connected to the mounting threaded holes through the mounting through holes.
6. The adjustable bridge expansion device test stand according to claim 5, characterized in that: The second cover plate assembly comprises two groups of second cover plates (25) and eight groups of second screws (26), the front ends of the two groups of lifting boxes (6) are respectively provided with four groups of fixing threaded holes, the front ends of the two groups of second cover plates (25) are respectively provided with four groups of fixing through holes, and the eight groups of second screws (26) are respectively threadedly connected with the fixing threaded holes through the fixing through holes.
7. The adjustable bridge expansion device test stand according to claim 6, characterized in that: The four groups of installation through holes and the eight groups of fixing through holes are all configured as countersunk holes.
8. The adjustable bridge expansion device test stand according to claim 7, characterized in that: It also comprises four groups of stabilizing pads (27), and the bottom ends of the four groups of supporting legs (2) are respectively connected to the stabilizing pads (27).