Rapidly-installed weighing platform type rail weighbridge

Abstract

The utility model discloses a rapid installation type weighing platform type rail weighbridge, and aims to provide the rapid installation type weighing platform type rail weighbridge which can meet the weighing precision requirement and can be rapidly installed. The device comprises a weighing platform, the top surface of which is provided with a weighing rail; the steel structure underframe is provided with two groups of fixed supports distributed along the direction of the weighing rail, the weighing platform is located above the steel structure underframe, and the weighing platform is located between the two groups of fixed supports; the sensor device comprises a front weighing sensor assembly, a middle weighing sensor assembly and a rear weighing sensor assembly which are sequentially distributed in the direction of the weighing rail, and the weighing platform is supported on the steel structure underframe through the sensor device.

Description

Technical Field

[0001] This utility model relates to a rail scale, specifically a quick-installation platform rail scale. Background Technology

[0002] A rail scale is a device used to measure and monitor the weight of trains and the load of goods in rail transportation systems such as trains and subways. The current rail scale retrofit process includes: rail scale foundation design, track removal, pit excavation, reinforcement mesh placement, foundation concrete pouring, foundation curing, and rail scale installation and commissioning. This often requires the rail system to be shut down for several days to several weeks, resulting in low installation efficiency. Furthermore, current rail scales have a limited number of sensors, leading to high concentrated loads and strong foundation pressure. This not only places high demands on foundation construction, increasing construction costs, but also extends the construction time.

[0003] For example, Chinese Patent Publication No. CN111024203A, an invention entitled Electronic Rail Scale, uses a reinforced concrete foundation as the base of the rail scale, and it also has the above-mentioned shortcomings. Utility Model Content

[0004] The purpose of this invention is to provide a quick-installation platform-type rail scale that can meet both weighing accuracy requirements and rapid installation.

[0005] The technical solution of this utility model is:

[0006] A quick-installation platform rail scale includes:

[0007] The weighing platform has a weighing rail on its top surface.

[0008] The steel structure base frame has two sets of fixed supports distributed along the weighing rail direction. The weighing platform is located above the steel structure base frame and between the two sets of fixed supports.

[0009] The sensor device includes three sets of weighing sensor components arranged sequentially along the weighing rail direction: front, middle, and rear. The weighing platform is supported on a steel structure base frame via the sensor device. This solution's quick-installation platform-type rail scale adopts a modular design, allowing the quick-installation platform-type rail scale to be pre-assembled into a single unit, eliminating the need for on-site construction of reinforced concrete foundations and foundation maintenance. This significantly shortens the rail scale renovation construction cycle and effectively improves installation efficiency.

[0010] On the other hand, the platform of the quick-installation weighbridge in this solution is supported on the steel structure base frame by three sets of weighing sensor assemblies (front, middle, and rear). The weighing accuracy requirements can be met by the three sets of weighing sensor assemblies. At the same time, the three sets of weighing sensor assemblies distributed in sequence along the weighing rail direction make the pressure of the platform on the steel structure base frame more uniform, reducing the rigidity requirements of the steel structure base frame.

[0011] Preferably, the system further includes at least two sets of limiter assemblies sequentially distributed along the weighing rail direction, the limiter assemblies comprising:

[0012] The limiting base is fixedly mounted on the steel structure base frame. The limiting base is equipped with threaded longitudinal bolts, which are parallel to the weighing rail.

[0013] A limit block is fixedly mounted on the weighing platform. The limit blocks and longitudinal bolts are distributed sequentially along the weighing rail direction, with a gap between the limit blocks and the longitudinal bolts, and the limit blocks are close to the longitudinal bolts. Because of the gap between the limit blocks and the longitudinal bolts in the limiter assembly, weighing accuracy is not affected. Simultaneously, the limiter assembly can limit the displacement of the weighing platform in the weighing rail direction, thereby limiting the platform's displacement in the train's running direction and improving the platform's stability. On the other hand, the position of the longitudinal bolts can be adjusted by rotating them, thus adjusting the gap between the limit blocks and the longitudinal bolts. This gap is adjusted to be within the sensor's automatic reset angle, allowing the weighing platform to automatically return to its original position after the impact disappears.

[0014] Preferably, there are two limit bases in the same limiter assembly, and the two limit bases are distributed in sequence along the vertical line of the weighing rail. The limit block corresponds to the limit base one by one. The limit base is also provided with a transverse bolt perpendicular to the weighing rail, and the transverse bolt is close to the corresponding limit block.

[0015] In the same limiter assembly, the transverse bolts on the two limiter bases are located between the corresponding limit blocks, or the two limit blocks in the same limiter assembly are located between the transverse bolts on the two limiter bases. In this way, the transverse bolts, in conjunction with the limit blocks, can limit the displacement of the weighing platform in the direction perpendicular to the weighing rail, further improving the stability of the weighing platform.

[0016] Preferably, the system also includes at least two sets of tie rod limiting assemblies arranged sequentially along the weighing rail direction. Each set of tie rod limiting assemblies includes two symmetrically distributed tie rod limiting devices. Each tie rod limiting device includes a transverse tie rod extending perpendicular to the weighing rail direction. One end of the transverse tie rod is hinged to the weighing platform, and the other end is hinged to the steel structure base frame. Because one end of the transverse tie rod is hinged to the weighing platform, and the other end is hinged to the steel structure base frame, the weighing platform will not deform and jam, thus ensuring weighing accuracy. Furthermore, the use of a gapless tie rod limiting device maintains a constant transverse spacing between the weighing platforms during train operation, further improving the stability of the weighing platform.

[0017] Preferably, the front and rear load cell assemblies are located near the ends of the steel structure base, while the middle load cell assembly is located in the center of the steel structure base. Each load cell assembly includes two load cells arranged sequentially along a direction perpendicular to the weighing rail. This design allows for more even pressure distribution from the weighing platform onto the steel structure base, reducing the rigidity requirements of the steel structure base. Furthermore, adding two load cells in the center of the steel structure base improves the overall structural stability of the weighing platform, preventing settlement and deformation in the center of the platform.

[0018] Preferably, the steel structure base frame includes several crossbeams distributed sequentially along the weighing rail direction and two longitudinal beams parallel to the weighing rail. Each crossbeam is welded to the longitudinal beam. One load cell in the same load cell assembly is mounted on the top surface of one longitudinal beam, and the other load cell is mounted on the top surface of the other longitudinal beam. In this design, the main body of the steel structure base frame consists of two longitudinal beams and several crossbeams. The load cells are fixed to the two longitudinal beams, ensuring the overall structural stability of the steel structure base frame.

[0019] Preferably, the steel structure base frame includes a base plate, several crossbeams distributed sequentially along the weighing rail direction, and two longitudinal beams parallel to the weighing rail. The crossbeams are perpendicular to the longitudinal beams, and each crossbeam is located above the base plate and connected to it. Each crossbeam is welded to the longitudinal beam. This design features a base plate in contact with the foundation, resulting in an actual load-bearing area 3-4 times larger than that of the original sleepers. This effectively increases the contact area between the steel structure base frame and the foundation, thereby reducing the pressure on the foundation and preventing settlement of the steel structure base frame. Furthermore, the main body of the steel structure base frame consists of two longitudinal beams and several crossbeams, ensuring the overall structural stability of the steel structure base frame.

[0020] Preferably, the steel structure base also includes side sealing plates around the perimeter of the steel structure base. Since the steel structure base is located in the foundation pit and is surrounded by gravel, the side sealing plates around the perimeter of the steel structure base cooperate with the base plate to prevent foreign objects from entering.

[0021] Preferably, the side of the steel structure base frame is equipped with an inspection door corresponding to the weighing sensor assembly. This allows for maintenance of the weighing sensor assembly through the inspection door.

[0022] Preferably, the end of the train track located outside the weighing platform is provided with a guide rail, and both ends of the weighing rail are provided with the guide rail. The guide rail extends into a corresponding fixed bracket, and the guide rail is fixed to the top surface of the fixed bracket by bolts. The top surface of the weighing platform is flush with the top surface of the fixed bracket, so that the height of the guide rail and the weighing rail is consistent. This ensures the stability of the vehicle when it is placed on the scale.

[0023] The beneficial effects of this utility model are as follows: The modular design allows for the pre-assembly of the quick-installation platform-type rail scale into a single unit, eliminating the need for on-site construction of reinforced concrete foundations and foundation maintenance. This significantly shortens the rail scale modification construction cycle and effectively improves installation efficiency. Furthermore, the use of three sets of weighing sensor components meets the weighing accuracy requirements. Simultaneously, the front, middle, and rear sets of weighing sensor components, distributed sequentially along the weighing rail direction, ensure more even pressure distribution of the platform on the steel structure base, reducing the rigidity requirements of the steel structure base. Attached Figure Description

[0024] Figure 1 This is a structural schematic diagram of a quick-installation platform-type rail scale according to the present invention.

[0025] Figure 2 This is a partial structural diagram of a quick-installation platform-type rail scale according to this utility model.

[0026] Figure 3 This is a structural schematic diagram of a steel structure base frame of this utility model.

[0027] Figure 4 This is a partial structural diagram of a quick-installation platform-type rail scale according to this utility model.

[0028] Figure 5 This is a schematic diagram of the structure of the pull rod limiting device of this utility model.

[0029] In the picture:

[0030] Weighing platform 1;

[0031] 2. Steel structure base frame, 2.1. Fixed bracket, 2.2. Base plate, 2.3. Crossbeam, 2.4. Longitudinal beam, 2.5. Sensor mounting plate;

[0032] Weighing rail 3;

[0033] Track 4;

[0034] Weighing sensor assembly 5, weighing sensor 5.1;

[0035] Limiter assembly 6, limit base 6.1, longitudinal bolt 6.2, limit block 6.3;

[0036] Side sealing plate 7;

[0037] Tie rod limiting device 8, lateral tie rod 8.1, spherical bearing 8.2;

[0038] Inspection door 9;

[0039] 10 side columns. Detailed Implementation

[0040] Specific Implementation Example 1, such as Figure 1 , Figure 2 As shown, a quick-installation platform-type rail scale includes a weighing platform 1, a steel structure base frame 2, and a sensor device. Weighing rails 3 are provided on the top surface of the weighing platform 1. There are two weighing rails 3, and the two weighing rails 3 are parallel to each other.

[0041] Two sets of fixed supports 2.1 are provided on the steel structure base frame 2, distributed along the weighing rail 3. In this embodiment, the two sets of fixed supports 2.1 are located at both ends of the steel structure base frame 2. The fixed supports 2.1 are connected to the steel structure base frame 2 by welding or bolts. The weighing platform 1 is located above the steel structure base frame 2, and the weighing platform 1 is located between the two sets of fixed supports 2.1.

[0042] The sensor device includes three sets of weighing sensor assemblies 5 arranged sequentially along the weighing rail 3: front, middle, and rear. The weighing platform 1 is supported on the steel structure base frame 2 by the sensor device. The front and rear sets of weighing sensor assemblies 5 are located near the ends of the steel structure base frame 2, while the middle set is located in the middle of the steel structure base frame 2. Each set of weighing sensor assemblies 5 includes two weighing sensors, left and right, which are arranged sequentially along a direction perpendicular to the weighing rail 3.

[0043] This embodiment of the quick-installation platform-type rail scale adopts a modular design, allowing the quick-installation platform-type rail scale to be pre-assembled into a single unit. For example, the weighing platform 1 and the weighing sensors can be pre-assembled on the steel structure base frame 2 in the factory to form a modular unit. Compared to rail scales with a concrete foundation for the weighing platform 1, this embodiment of the quick-installation platform-type rail scale does not require on-site construction of a reinforced concrete foundation and foundation maintenance. Therefore, it can greatly shorten the rail scale modification construction cycle, effectively improve installation efficiency, quickly restore production, and reduce construction costs.

[0044] On the other hand, in this embodiment, the weighing platform 1 of the quick-installation platform-type rail scale is supported on the steel structure base frame 2 by three sets of weighing sensor assemblies 5 (front, middle, and rear), which can meet the weighing accuracy requirements. Simultaneously, the three sets of weighing sensor assemblies 5, distributed sequentially along the weighing rail 3, make the pressure of the weighing platform 1 on the steel structure base frame 2 more uniform, reducing the rigidity requirements of the steel structure base frame 2. Furthermore, by adding two weighing sensors located in the middle of the steel structure base frame 2, the overall structural stability of the weighing platform 1 can be improved, preventing settlement and deformation in the middle of the weighing platform 1.

[0045] Specific embodiment two, such as Figure 1 , Figure 2 As shown, a quick-installation platform-type rail scale includes a weighing platform 1, a steel structure base frame 2, a sensor device, and at least two sets of limit switch assemblies 6. Weighing rails 3 are provided on the top surface of the weighing platform 1. There are two weighing rails 3, and the two weighing rails 3 are parallel to each other.

[0046] Two sets of fixed supports 2.1 are provided on the steel structure base frame 2, distributed along the weighing rail 3. In this embodiment, the two sets of fixed supports 2.1 are located at both ends of the steel structure base frame 2. The fixed supports 2.1 are connected to the steel structure base frame 2 by welding or bolts. The weighing platform 1 is located above the steel structure base frame 2, and the weighing platform 1 is located between the two sets of fixed supports 2.1.

[0047] The sensor device includes three sets of weighing sensor assemblies 5 arranged sequentially along the weighing rail 3 (front, middle, and rear). The weighing platform 1 is supported on the steel structure base frame 2 by the sensor device. The front and rear sets of weighing sensor assemblies 5 are located near the ends of the steel structure base frame 2, while the middle set is located in the middle of the steel structure base frame 2. Each set of weighing sensor assemblies 5 includes two weighing sensors 5.1, arranged sequentially along a direction perpendicular to the weighing rail 3. In this embodiment, the weighing sensor 5.1 is a double-ball-head columnar high-temperature sensor, which features high overall accuracy, good connector versatility, strong resistance to lateral forces, good moisture resistance, and convenient installation and maintenance. It should be noted that the weighing sensor 5.1 can also be other weighing sensors currently available on the market.

[0048] Each set of limiter assemblies 6 is distributed sequentially along the weighing rail 3. Each limiter assembly 6 includes a limiter base 6.1 and a limiter block 6.3. The limiter base 6.1 is fixed to the steel frame 2 by welding or bolts. The limiter base 6.1 has a threaded longitudinal bolt 6.2, which is parallel to the weighing rail 3. The limiter block 6.3 is fixed to the weighing platform 1 by welding or bolts. The limiter block 6.3 and the longitudinal bolt 6.2 are distributed sequentially along the weighing rail 3. There is a gap between the limiter block 6.3 and the longitudinal bolt 6.2, and the limiter block 6.3 is close to the longitudinal bolt 6.2. In practical applications, the position of the longitudinal bolt can be adjusted by rotating it, thereby adjusting the gap between the limiter block and the longitudinal bolt. The gap between the limiter block 6.3 and the longitudinal bolt 6.2 is adjusted to be within the sensor's automatic reset angle, so that the weighing platform 1 can automatically return to its original position after the impact disappears. Because there is a gap between the limit block 6.3 and the longitudinal bolt 6.2, the weighing accuracy can be guaranteed not to be affected. At the same time, the displacement of the weighing platform 1 in the direction of the weighing rail 3 can be limited by the cooperation between the limit block 6.3 and the longitudinal bolt 6.2 of the limiter assembly 6, thereby limiting the displacement of the weighing platform 1 in the direction of train operation and improving the stability of the weighing platform 1.

[0049] In this embodiment, there are three sets of limiter assemblies 6. Each limiter assembly 6 corresponds one-to-one with a weighing sensor assembly 5. There are two limiter bases 6.1 within the same limiter assembly 6, and the two limiter bases 6.1 are distributed sequentially along a line perpendicular to the weighing rail 3. Each limiter base 6.1 within the same limiter assembly 6 corresponds one-to-one with a weighing sensor in the corresponding weighing sensor assembly 5, and the limiter base 6.1 is located close to the corresponding weighing sensor. Within the same limiter assembly 6, each limiter block 6.3 corresponds one-to-one with a limiter base 6.1.

[0050] The arrangement direction of the limiting block 6.3 and longitudinal bolt 6.2 in one of the three sets of limiter assemblies 6 is opposite to that in the other two sets of limiter assemblies 6. For example, if the limiting block 6.3 and longitudinal bolt 6.2 in one set of limiter assemblies 6 are distributed back and forth along the weighing rail 3, then the longitudinal bolt 6.2 and limiting block 6.3 in the other two sets of limiter assemblies 6 are distributed back and forth along the weighing rail 3.

[0051] In this embodiment, the parking range can be extended according to user needs. The weighing platform 1 and weighing rail 3 are lengthened during the design to cover a larger parking area, so as to avoid weighing errors caused by inaccurate vehicle parking.

[0052] This embodiment of the quick-installation platform-type rail scale adopts a modular design, allowing the quick-installation platform-type rail scale to be pre-assembled into a single unit. For example, the weighing platform 1 and the weighing sensors can be pre-assembled on the steel structure base frame 2 in the factory to form a modular unit. Compared to rail scales with a concrete foundation for the weighing platform 1, this embodiment of the quick-installation platform-type rail scale does not require on-site construction of a reinforced concrete foundation and foundation maintenance. Therefore, it can greatly shorten the rail scale modification construction cycle, effectively improve installation efficiency, quickly restore production, and reduce construction costs.

[0053] On the other hand, in this embodiment, the weighing platform 1 of the quick-installation platform-type rail scale is supported on the steel structure base frame 2 by three sets of weighing sensor assemblies 5 (front, middle, and rear), which can meet the weighing accuracy requirements. Simultaneously, the three sets of weighing sensor assemblies 5, distributed sequentially along the weighing rail 3, make the pressure of the weighing platform 1 on the steel structure base frame 2 more uniform, reducing the rigidity requirements of the steel structure base frame 2. Furthermore, by adding two weighing sensors located in the middle of the steel structure base frame 2, the overall structural stability of the weighing platform 1 can be improved, preventing settlement and deformation in the middle of the weighing platform 1.

[0054] Furthermore, such as Figure 1 , Figure 2 As shown, a guide rail 4 is provided at the end of the train track located outside the weighing platform 1. Both ends of the weighing rail 3 are also equipped with the aforementioned guide rail 4. The guide rail 4 extends into the corresponding fixed bracket 2.1. The guide rail 4 is fixed to the top surface of the fixed bracket 2.1 by bolts. The top surface of the weighing platform 1 is flush with the top surface of the fixed bracket 2.1, so that the guide rail 4 and the weighing rail 3 are at the same height. This ensures the stability of the vehicle when it is placed on the scale.

[0055] Furthermore, such as Figure 1 , Figure 3 As shown, the steel structure base frame 2 includes a base plate 2.2, several crossbeams 2.3 distributed sequentially along the weighing rail 3, and two longitudinal beams 2.4 parallel to the weighing rail 3. The crossbeams 2.3 and longitudinal beams 2.4 are horizontally distributed and perpendicular to each other. Each crossbeam 2.3 is located above the base plate 2.2 and is connected to the base plate 2.2 by welding. Each crossbeam 2.3 is also welded to the longitudinal beams 2.4. In this embodiment, the base plate 2.2 covers the bottom surface of the steel structure base frame 2, and the base plate 2.2 is a single, integral piece. Of course, the base plate 2.2 can be formed by splicing multiple steel plates. The steel structure base frame 2 adopts a design where the base plate 2.2 contacts the foundation, and the actual bearing area is 3-4 times that of the original sleepers. This effectively increases the contact area between the steel structure base frame 2 and the foundation, thereby effectively reducing the pressure on the foundation and preventing settlement of the steel structure base frame 2. On the other hand, the main body of the steel structure base frame 2 is composed of two longitudinal beams 2.4 and several transverse beams 2.3, which can ensure the overall structural stability of the steel structure base frame 2.

[0056] In one embodiment, the crossbeams 2.3 and longitudinal beams 2.4 are at the same height, and both crossbeams 2.3 and longitudinal beams 2.4 are supported on the upper surface of the base plate 2.2. Several crossbeams 2.3 are distributed between the two longitudinal beams 2.4, and several crossbeams 2.3 are also distributed on the outer sides of the two longitudinal beams 2.4. This reduces the height of the steel structure base frame 2.

[0057] In another embodiment, the longitudinal beam 2.4 is supported on the upper surface of each transverse beam 2.3.

[0058] In this embodiment, both the crossbeam 2.3 and the longitudinal beam 2.4 are made of H-beams. It should be noted, however, that the crossbeam 2.3 and the longitudinal beam 2.4 can also be made of other profiles, such as square steel, I-beams, or profiles with other cross-sectional shapes.

[0059] Furthermore, such as Figure 1 , Figure 4 As shown, the steel structure base frame 2 also includes side sealing plates 7 surrounding the steel structure base frame 2. The side sealing plates 7 are welded to the steel structure base frame 2. The weighing platform 1 is also located inside the side sealing plates 7 surrounding the steel structure base frame 2. Since the steel structure base frame 2 is located in the foundation pit, and there are stones filling the area around the steel structure base frame 2, the side sealing plates 7 are arranged around the steel structure base frame 2 to cooperate with the base plate 2.2 to prevent foreign objects from entering. In this embodiment, several side columns 10 are also provided around the steel structure base frame 2, and the side columns 10 are welded to the steel structure base frame 2. The side sealing plates 7 are welded to the side columns 10.

[0060] Furthermore, such as Figure 1 , Figure 4 As shown, the steel structure base frame 2 has a maintenance door 9 on its side corresponding to the weighing sensor assembly 5. This allows for maintenance of the weighing sensor assembly 5 through the maintenance door 9. When the rail scale is in use, the maintenance door 9 is closed to prevent debris from entering the bottom of the weighing platform 1. The weighing sensor assembly 5 is opened for maintenance, facilitating inspection of the clearance between the weighing sensor and the limit block 6.3 and the longitudinal bolt 6.2, and can also be used to replace the sensor. The maintenance door 9 is a sliding type, reducing the space required for maintenance.

[0061] Furthermore, such as Figure 1 , Figure 2 , Figure 3 As shown, one load cell 5.1 in the same load cell assembly 5 is mounted on the top surface of one longitudinal beam 2.4, and the other load cell 5.1 is mounted on the top surface of another longitudinal beam 2.4. The main body of the steel structure base frame 2 in this scheme consists of two longitudinal beams 2.4 and several cross beams 2.3. The load cells are fixed on the two longitudinal beams 2.4, which can ensure the overall structural stability of the steel structure base frame 2.

[0062] In this embodiment, the top surfaces of the two longitudinal beams 2.4 are provided with sensor mounting plates corresponding to the weighing sensors. The weighing sensors are mounted on the corresponding sensor mounting plates 2.5.

[0063] Furthermore, the limiting base 6.1 is also provided with transverse bolts perpendicular to the weighing rail 3, with the transverse bolts close to the corresponding limiting block 6.3. In the same limiting device assembly 6, the transverse bolts on the two limiting bases 6.1 are located between the corresponding limiting blocks 6.3, or the two limiting blocks 6.3 in the same limiting device assembly 6 are located between the transverse bolts on the two limiting bases 6.1. In this way, the transverse bolts, in cooperation with the limiting blocks 6.3, can limit the displacement of the weighing platform 1 in the direction perpendicular to the weighing rail 3, further improving the stability of the weighing platform 1.

[0064] Furthermore, such as Figure 2 , Figure 5 As shown, a quick-installation platform-type rail scale also includes at least two sets of tie rod limiting assemblies sequentially distributed along the weighing rail 3. Each set of tie rod limiting assemblies includes two symmetrically distributed tie rod limiting devices 8. In this embodiment, there are two sets of tie rod limiting assemblies, one set of which is located near one end of the steel structure base 2, and the other set is located near the other end of the steel structure base 2. The tie rod limiting device 8 includes a transverse tie rod 8.1. The transverse tie rod 8.1 extends perpendicular to the weighing rail 3. One end of the transverse tie rod 8.1 is hinged to the platform 1, and the other end of the transverse tie rod 8.1 is hinged to the steel structure base 2. Because one end of the transverse tie rod 8.1 is hinged to the platform 1, and the other end of the transverse tie rod 8.1 is hinged to the steel structure base 2, it can be ensured that the platform 1 will not be jammed due to deformation, thus affecting the weighing accuracy. At the same time, the use of a gapless tie rod limiting device 8 maintains a constant transverse spacing of the platform 1 during train operation, further improving the stability of the platform 1.

[0065] In this embodiment, both ends of the transverse tie rod 8.1 are provided with spherical bearings 8.2. One end of the transverse tie rod 8.1 is hinged to the weighing platform 1 through the spherical bearing, and the other end of the transverse tie rod 8.1 is hinged to the steel structure base frame 2 through the spherical bearing.

[0066] The above description is merely a preferred embodiment of the present utility model and does not constitute any limitation on the present utility model. Any simple modifications, alterations, or equivalent transformations made to the above embodiments based on the technical essence of the present utility model shall still fall within the protection scope of the present utility model.

Claims

1. A quick-installation platform-type rail scale, characterized in that, include: The weighing platform has a weighing rail on its top surface. The steel structure base frame has two sets of fixed supports distributed along the weighing rail direction. The weighing platform is located above the steel structure base frame and between the two sets of fixed supports. The sensor device includes three sets of weighing sensor components arranged sequentially along the weighing rail direction: front, middle, and rear. The weighing platform is supported on a steel structure base frame via the sensor device.

2. The quick-installation platform-type rail scale according to claim 1, characterized in that, It also includes at least two sets of limiter assemblies arranged sequentially along the weighing rail direction, the limiter assemblies comprising: The limiting base is fixedly mounted on the steel structure base frame. The limiting base is equipped with threaded longitudinal bolts, which are parallel to the weighing rail. The limit block is fixedly installed on the weighing platform. The limit block and the longitudinal bolt are distributed sequentially along the weighing rail direction. There is a gap between the limit block and the longitudinal bolt, and the limit block is close to the longitudinal bolt.

3. The quick-installation platform-type rail scale according to claim 2, characterized in that, There are two limit bases in the same limiter assembly, and the two limit bases are distributed in sequence along the vertical line of the weighing rail. The limit block corresponds to the limit base one by one. The limit base is also provided with a transverse bolt perpendicular to the weighing rail. The transverse bolt is close to the corresponding limit block. In the same limiter assembly, the transverse bolts on the two limiter bases are located between the corresponding limiter blocks, or in the same limiter assembly, the two limiter blocks are located between the transverse bolts on the two limiter bases.

4. A quick-installation platform-type rail scale according to claim 1, 2, or 3, characterized in that, It also includes at least two sets of pull rod limiting assemblies distributed sequentially along the weighing rail direction. Each set of pull rod limiting assemblies includes two symmetrically distributed pull rod limiting devices. The pull rod limiting device includes a transverse pull rod that extends in a direction perpendicular to the weighing rail. One end of the transverse pull rod is hinged to the weighing platform, and the other end of the transverse pull rod is hinged to the steel structure base frame.

5. A quick-installation platform-type rail scale according to claim 1, 2, or 3, characterized in that, The front and rear sets of weighing sensor assemblies are located near the two ends of the steel structure base frame, while the middle set is located in the middle of the steel structure base frame. Each set of weighing sensor assemblies includes two weighing sensors, one on the left and one on the right, arranged in sequence along the direction perpendicular to the weighing rail.

6. A quick-installation platform-type rail scale according to claim 5, characterized in that, The steel structure base frame includes several crossbeams distributed sequentially along the weighing rail direction and two longitudinal beams parallel to the weighing rail. Each crossbeam and longitudinal beam is welded together. In the same weighing sensor assembly, one weighing sensor is installed on the top surface of one longitudinal beam, and the other weighing sensor is installed on the top surface of the other longitudinal beam.

7. A quick-installation platform-type rail scale according to claim 1, 2, or 3, characterized in that, The steel structure base frame includes a base plate, several crossbeams distributed sequentially along the weighing rail direction, and two longitudinal beams parallel to the weighing rail. The crossbeams are perpendicular to the longitudinal beams, each crossbeam is located above the base plate and connected to the base plate, and each crossbeam is welded to the longitudinal beam.

8. A quick-installation platform-type rail scale according to claim 7, characterized in that, The steel structure base frame also includes side sealing plates surrounding the steel structure base frame.

9. A quick-installation platform-type rail scale according to claim 1, 2, or 3, characterized in that, The steel structure base frame is equipped with a maintenance door on its side corresponding to the weighing sensor assembly.

10. A quick-installation platform-type rail scale according to claim 1, 2, or 3, characterized in that, The end of the train track located outside the weighing platform is provided with a guide rail. Both ends of the weighing rail are provided with the guide rail. The guide rail extends into the corresponding fixed bracket. The guide rail is fixed to the top surface of the fixed bracket by bolts. The top surface of the weighing platform is flush with the top surface of the fixed bracket so that the height of the guide rail is the same as that of the weighing rail.

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