A new type of track weighing structure

Abstract

A new track weighing structure includes a fixing mechanism consisting of a rail buckle bracket mounted on the rail and a pressure sensor mounted on the sleeper, connected via auxiliary components. Once assembled, the rail bottom surface and the sleeper rail support surface are not in direct contact, and the fixing mechanism can swing up and down as the rail deforms under pressure. This new track weighing structure does not require the replacement of dedicated sleepers, does not affect the requirements of large-scale mechanical tamping operations, is easy to install and use, and is inexpensive. It can extend the detection range of track scales and overload detectors and improve the detection accuracy of dynamic track scales and overload detection devices.

Description

Technical Field

[0001] The invention relates to a novel track weighing structure. Background Art

[0002] At present, in order to weigh and detect the load volume and load mass of running railway freight cars, it is necessary to install dynamic track scales or dynamic overload detection devices in China. In order to ensure the detection accuracy, the detection interval is required to be of sufficient length, and generally each detection interval is about 3600mm. The previous practice was to use an integral concrete foundation or customized special sleepers to connect into an integral foundation. During the design, the pressure sensor was installed in the design installation position of the integral concrete foundation according to the size and shape of the pressure sensor, or using specially designed special sleepers that can be installed with pressure sensors. These solutions have many disadvantages during the equipment installation and maintenance process because they involve the application of relevant procedures, personnel deployment, and equipment layout and control: high construction costs and long cycles, complex installation operations, and difficult maintenance. Summary of the Invention

[0003] The present invention provides a new type of track weighing structure, which does not require replacement of special rail sleepers, does not affect the requirements of large-scale mechanical tamping operations, is easy to install and use, and has a low cost. It can extend the detection range length of track scales and overload detectors and improve the detection accuracy of dynamic track scales and overload detection devices.

[0004] The technical solution adopted by the present invention is: a new type of track weighing structure, which includes a fixing mechanism; the fixing mechanism is composed of a rail buckle bracket installed on the rail, a pressure sensor installed on the sleeper, and connecting accessories; after the new type of track weighing structure is assembled, the bottom surface of the rail is not in direct contact with the rail support surface of the sleeper, and the fixing mechanism can swing up and down when the rail is compressed and deformed.

[0005] A further technical solution is as follows: the rail buckle bracket includes a rail buckle seat 1 and a bridge plate; the rail buckle seat 1 is square-shaped, provided with an inner groove and a connection hole, the size of the inner groove being consistent with the lower convex edge of the rail cross section; the bridge plate is square-shaped, and a hole for installing a pressure sensor is provided in the middle of the bridge plate; the rail buckle bracket is a single entity consisting of a rail buckle seat 1 welded or bolted on each of the left and right sides below the bridge plate;

[0006] The connection accessories include a transition platform, an adjustment pad, an adjustment rubber pad, a rail buckle bracket assembly bolt, a bridge plate connection assembly bolt and a sensor clamping assembly bolt; the front end of the transition platform is provided with a mounting hole for connecting with the threaded spike on the rail support platform, and the upper surface of the rear end is provided with a threaded hole for installing the pressure sensor; the adjustment pad is a square plate, and a center hole is opened in the middle of the adjustment pad; the adjustment rubber pad is a rubber gasket; the rail buckle bracket assembly bolt, the bridge plate connection assembly bolt and the sensor clamping assembly bolt are all standard connecting parts;

[0007] In the assembled state, each measuring area needs to install a set of pressure sensors on the inner and outer sides of the rails on both sides of the same sleeper; during installation, with the center line of the sleeper as the center, the inner and outer sides of the rail are aligned and buckled with the lower edge of the rail with two rail buckle brackets, and the rail buckle bracket assembly bolts are passed through the connecting holes and tightened to fix the rail buckle bracket on the rail; the adjustment rubber pad passes through the threaded spike pad on the rail support platform and is placed on the rail support platform; the adjustment pad passes through the threaded spike on the rail support platform through the center hole and is installed on the adjustment rubber pad; the front end of the transition platform passes through the threaded spike on the rail support platform through the mounting hole and is installed on the adjustment pad, and is fixed to the sleeper by tightening the nut, and its rear end is placed on the concrete surface of the sleeper end; the rail buckle bracket is connected to the rail to form the same follower, and the transition platform and the sleeper form a base body; the pressure sensor is placed on the mounting platform composed of the transition platform and the bridge plate, one end of the pressure sensor is connected to the bridge plate by the bridge plate connecting assembly bolt, and the other end of the pressure sensor is connected to the rear end of the transition platform by the sensor tightening assembly bolt.

[0008] A further technical solution is as follows: the rail buckle bracket is a rail buckle seat II, the rail buckle seat II is block-shaped, and the rail buckle seat II is provided with an inner groove, a connecting hole and a hole for installing a pressure sensor, and the size of the inner groove is consistent with the lower convex edge of the rail cross section;

[0009] The connecting accessories include a support frame, an adjustment pad, a support frame connecting assembly bolts, a rail buckle bracket assembly bolts and a sensor fixing assembly bolts; the front end of the support frame is provided with a mounting hole connected to the threaded spikes on the rail support platform, and the upper surface of the rear end is provided with a threaded hole for installing the pressure sensor; the adjustment pad is a square plate, and a center hole is opened in the middle of the adjustment pad; the support frame connecting assembly bolts, rail buckle bracket assembly bolts and sensor fixing assembly bolts are all standard connecting parts;

[0010] When the rail is in the state of assembly, each measuring area needs to install a set of pressure sensors on the inner and outer sides of the rails on both sides of the same sleeper; during installation, the center line of the sleeper is used as the center, and the inner and outer sides of the rail are respectively aligned and buckled with the lower edge of the rail with two rail buckle seats II, and the rail buckle bracket assembly bolts are passed through the connecting holes and tightened to fix the rail buckle seat II on the rail; the adjusting plate passes through the center hole through the threaded spike pad on the rail support platform and is installed on the rail support platform surface; the rear end of the supporting platform passes through the mounting hole through the threaded spike on the rail support platform and is installed on the adjusting plate, and is fixed to the sleeper by tightening the nut; the rail buckle seat II is connected to the rail to form the same follower, and the supporting platform and the sleeper form a basic body; the pressure sensor is placed on the mounting platform composed of the supporting platform and the rail buckle seat II, the middle part of the pressure sensor is connected to the front end of the supporting platform by the supporting platform connecting assembly bolts, and the two ends of the pressure sensor are connected to the rail buckle seat II by the sensor fixing assembly bolts.

[0011] A further technical solution may be: the rail buckle bracket is a rail buckle seat III, the rail buckle seat III is block-shaped, an inner groove is provided on the inner side of the rail buckle seat III, a connection hole is provided on the outer side thereof, and a hole for mounting the mounting plate on the sensor is provided on the bottom thereof, and the size of the inner groove is consistent with the lower convex edge of the rail cross section;

[0012] The connecting accessories include a pillow buckle bracket I, a sensor upper mounting plate, a sensor lower support plate, a rail buckle bracket combination bolt and a sensor fixing combination bolt; the pillow buckle bracket I includes a bridge seat and mounting seats respectively arranged at both ends of the bridge seat, the bridge seat is a semi-enclosed structure, and the downward concave section of the semi-enclosed structure forms a pillow riding groove, the middle part of the bridge seat is provided with a mounting hole connected to the threaded spike on the rail support platform, and the table surface of the mounting seat is provided with a threaded hole for installing the sensor lower support plate; the upper mounting plate of the sensor is provided with a hole for installing the pressure sensor and a hole for installing the rail buckle seat III; the lower support plate of the sensor is provided with a hole for installing the pressure sensor and a hole for installing the mounting seat on the pillow buckle bracket I; the rail buckle bracket combination bolt and the sensor fixing combination bolt are both standard connecting parts;

[0013] In the assembled state, with the center line of the sleeper as the center, the inner and outer sides of the rail are aligned and buckled with the lower edge of the rail with two rail buckle seats III, and the rail buckle bracket combination bolts are passed through the connecting holes and tightened to fix the rail buckle seat III on the rail; the sleeper buckle bracket I is divided into an inner and outer integral frame, which is buckled on the sleeper threaded spikes on both sides of the same rail. The inner and outer sleeper buckle brackets I are connected through the sensor lower support plate and are fixedly connected to the sleeper by nuts, so that the inner and outer sleeper buckle brackets I and the sleeper form the same basic body; the sensor upper mounting plate is flatly placed on the bottom of the rail buckle seat III and is fixedly connected to the rail buckle seat III; the rail buckle seat III and the sensor upper mounting plate form the same rigid linkage body with the rail; the sensor lower support plate serves as an installation platform, and the pressure sensor is located between the sensor upper mounting plate and the sensor lower support plate. The pressure head of the pressure sensor is fixedly connected to the sensor upper mounting plate by the sensor fixing combination bolts, and the strain sensing body of the pressure sensor is connected to the sensor lower support plate by the sensor fixing combination bolts.

[0014] A further technical solution is that: the rail buckle bracket is a rail buckle seat IV, the rail buckle seat IV is in a square shape, an inner groove is provided on the inner side of the rail buckle seat IV, a connection hole is provided on the outer side thereof, and a hole for installing a pressure sensor is provided on the bottom thereof, and the size of the inner groove is consistent with the lower convex edge of the cross section of the rail;

[0015] The connecting accessories include a pillow buckle bracket II, a sensor rear mounting plate, a sensor front mounting plate, a rail buckle bracket assembly bolt, a front mounting plate assembly bolt and a rear mounting plate assembly bolt; the pillow buckle bracket II includes a bridge seat, the bridge seat includes a bridge seat middle section and side sections arranged on both sides of the bridge seat middle section, the bridge seat middle section is provided with a mounting hole connected to the threaded spikes on the rail sleeper support rail platform, and the side sections of the bridge seat are provided with threaded holes for installing the sensor front mounting plate; the sensor front mounting plate is provided with a hole for installing the pressure sensor and a hole for installing the sensor rear mounting plate; the sensor rear mounting plate is provided with a hole for installing the pressure sensor and a hole for installing the rail buckle bracket IV; the rail buckle bracket assembly bolt, the front mounting plate assembly bolt and the rear mounting plate assembly bolt are all standard connecting parts;

[0016] In the assembled state, with the center line of the sleeper as the center, the inner and outer sides of the rail are centered and buckled with two rail buckle seats IV on the lower edge of the rail, and the rail buckle bracket combination bolts are passed through the connecting holes and tightened to fix the rail buckle seat IV on the rail; the rear mounting plate of the sensor is placed flat on the bottom platform surface of the inner and outer rail buckle seats IV and fastened with bolts; the rail buckle seat IV, the rear mounting plate of the sensor and the rail form the same rigid linkage body; the pillow buckle bracket II is placed on the sleeper center line from top to bottom on the sleeper threaded spikes, and is locked and fixed with the threaded spike combination nut, and one is installed on the inner and outer sides of the sleeper rail support table; the front mounting plate of the sensor is placed flat on the mounting surface of the inner and outer pillow buckle bracket II, and the front mounting plate of the sensor is fastened with the front mounting plate combination bolts to fix it with the inner and outer pillow buckle bracket II; the inner and outer pillow buckle bracket II, the front mounting plate of the sensor, and the sleeper form the same basic body;

[0017] The front and rear ends of the pressure sensor are respectively mounted on the mounting table composed of the sensor rear mounting plate and the sensor front mounting plate. The front end of the pressure sensor is fixedly connected to the sensor front mounting plate through the front mounting plate combination bolts, and the rear end of the pressure sensor is connected to the sensor rear mounting plate through the rear mounting plate combination bolts.

[0018] A further technical solution is that the outline and size of the pressure sensor are customized according to the installation conditions and driving environment.

[0019] A further technical solution is: the novel track weighing structure further comprises a force measuring section composed of shear force sensors installed on the waist of the rail.

[0020] A further technical solution is that after the novel track weighing structure is assembled, the distance between one side of the novel track weighing structure and the outermost contour edge of the bottom of the rail is 40 mm to 44 mm.

[0021] Due to the adoption of the above technical solution, the novel track weighing structure of the present invention has the following beneficial effects:

[0022] 1. This new track weighing structure is reasonable and compact, with a simple structure, compact design, and high compatibility. The use of this additional mechanical structure allows pressure sensors to be installed on ordinary sleepers, leaving the original line foundation unchanged, without having to replace dedicated overloaded sleepers, and has high versatility. The additional structure is used in conjunction with the sensor to extend the detection range length of the track scale and overload meter, thereby improving detection accuracy. In addition, the geometric dimensions of the additional mechanical structure of this new track weighing structure are designed according to the requirements of not affecting the operation of large machines, and there is no need to adjust the original sleeper spacing, which does not affect the operation of large machines. After the new track weighing structure is assembled, the distance between one side of the new track weighing structure and the outermost contour edge of the bottom of the rail is about 42mm; while the distance between the inner tamping pick of the tamping device of conventional tamping machines such as DC32 and DCL32 is 240mm. According to the standard width of the bottom of ordinary 60 rails of 150mm, the distance between the single-sided tamping pick and the bottom edge of the rail is at least 45mm. To ensure absolute safety, the tamping machine also reserves an additional 25mm buffer zone. Therefore, the new track weighing structure does not affect the operating requirements of large-scale tamping machines.

[0023] 2. The installation of this new track weighing structure does not require the use of large equipment, which greatly reduces the overall construction workload and shortens the construction time. It saves a lot of costs in making and transporting special sleepers, and also saves a lot of manpower and material resources required to replace special sleepers.

[0024] 3. Easy to use, maintain and replace.

[0025] The technical features of a novel track weighing structure of the present invention will be further described below with reference to the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 This is a layout diagram (stereoscopic view) of the installation scheme of a new type of track weighing structure in Example 1;

[0027] Figure 2 This is a layout diagram (plan view) of the installation scheme of a new type of track weighing structure in Example 1;

[0028] Figure 3 This is a schematic diagram of the assembly structure of a new type of track weighing structure in Example 1;

[0029] Figure 4 This is a cross-sectional view of the assembly structure of a novel track weighing structure of Example 1;

[0030] Figure 5 This is a schematic diagram of the shear force sensor installation;

[0031] Figure 6 is a schematic structural diagram of the rail buckle bracket of Example 1;

[0032] Figure 7 is a schematic structural diagram of the transition stand of Example 1;

[0033] Figure 8 is a structural diagram of the adjustment pad of Example 1;

[0034] Figure 9 is a schematic diagram of adjusting the rubber pad 5;

[0035] Figure 10 is a schematic structural diagram of the pressure sensor of Example 1;

[0036] Figure 11 This is a cross-sectional view of the structure of the pressure sensor of Example 1;

[0037] Figure 12 is a top view of the pressure sensor of Example 1;

[0038] Figure 13 This is a layout diagram (stereoscopic view) of the installation scheme of a new type of track weighing structure in Example 2;

[0039] Figure 14 This is a layout diagram (plan view) of the installation scheme of a new type of track weighing structure in Example 2;

[0040] Figure 15 This is an exploded view of the assembly of a novel track weighing structure in Example 2;

[0041] Figure 16 This is a layout diagram (stereoscopic view) of the installation scheme of a new type of track weighing structure in Example 3;

[0042] Figure 17 This is a layout diagram (plan view) of the installation scheme of a new type of track weighing structure in Example 3;

[0043] Figure 18 This is a schematic diagram of a new type of track weighing structure in Example 3;

[0044] Figure 19 This is an exploded view of the assembly of a novel track weighing structure in Example 3;

[0045] Figure 20 This is a layout diagram (stereoscopic view) of the installation scheme of a new type of track weighing structure in Example 4;

[0046] Figure 21 This is a layout diagram (plan view) of the installation scheme of a new type of track weighing structure in Example 4;

[0047] Figure 22 This is a schematic diagram of a new type of track weighing structure in Example 4;

[0048] Figure 23This is an exploded view of the assembly of a new type of track weighing structure in Example 3.

[0049] Description of reference numerals:

[0050] 1-pressure sensor; 2-transition platform; 3-adjustment pad; 4-rail buckle bracket; 41a-rail buckle seat I; 41b-rail buckle seat II; 41c-rail buckle seat III; 41d-rail buckle seat IV; 411-inner groove; 412-connection hole; 42-bridge plate; 5-adjustment pad; 6-rail buckle bracket assembly bolt; 7-bridge plate connection assembly bolt; 8-sensor pressing assembly bolt; 9-rail; 10-sleeper; 11-nut; 12-shear force sensor; 13-support platform; 14 -Support stand assembly bolts; 15-Sensor fixing assembly bolts 16-Threaded spikes; 17-Elongated strain sensor; 18a-Sensor upper mounting plate; 18b-Sensor lower support plate; 19a-Pillow buckle bracket I; 19b-Pillow buckle bracket II; 20-Cylindrical strain sensor; 21-Front mounting plate assembly bolts; 22a-Sensor rear mounting plate; 22b-Sensor front mounting plate; 23-Short strip strain sensor; 24-Rear mounting plate assembly bolts. DETAILED DESCRIPTION

[0051] A new type of track weighing structure is based on the ordinary sleepers of the original line. The weighing structure adopts an additional mechanical structure to install pressure sensors on the ordinary sleepers, thereby extending the length of the wheel weight detection section of the track scale and overload detection device to improve the detection accuracy.

[0052] The novel track weighing structure includes a fixing mechanism; the fixing mechanism is composed of a rail buckle bracket 4 installed on the rail, a pressure sensor 1 installed on the sleeper, and connecting accessories; after the novel track weighing structure is assembled, the bottom surface of the rail is not in direct contact with the rail support surface of the sleeper. Because the bottom surface of the rail is not in direct contact with the rail support surface of the sleeper, the fixing mechanism can swing up and down when the rail is compressed and deformed, generating an action force and a reaction force with the sleeper, thereby driving the sensor to be compressed and generate a signal. According to this principle, when a truck passes through the measurement area, the gravity causes the wheels to crush the rail deformation and squeeze the pressure sensor 1, thereby generating signal data.

[0053] like Figure 5 As shown, the novel rail weighing structure also includes a force measurement zone consisting of shear force sensors 12 installed on the rail web. When a train wheel is within the detection zone, the corresponding train wheel weight can be measured. The profile and size of the pressure sensor 1 are customized according to the installation conditions and driving environment, and the tonnage can be selected.

[0054] According to the different structures and installation methods of the rail buckle bracket 4 and the pressure sensor 1, there are several different implementation methods. Example 1:

[0055] like Figure 1-Figure 4 A novel rail weighing structure shown includes a fixing mechanism; the fixing mechanism is composed of a rail buckle bracket 4 installed on the rail, a pressure sensor 1 installed on the sleeper, and connecting accessories.

[0056] like Figure 6 As shown, the rail buckle bracket 4 is formed into a single entity by fastening or welding a rail buckle seat 141a and a bridge plate 42 with bolts. The rail buckle seat 141a is a metal square block with an inner groove 411 processed, the size of which matches the lower flange of the rail cross section, and a connection hole 412 drilled therein. The bridge plate 42 is a metal square bar with a smooth overlap surface. The middle of the square bar has a mounting hole for the pressure sensor 1. The rail buckle bracket 4 is formed into a single entity by welding or bolting a rail buckle seat 141a on each side below the bridge plate 42. The rail buckle bracket assembly bolts 6 are used to buckle the rail buckle bracket 4 on the inside and outside of the rail, so that the rail buckle bracket 4 and the rail form a rigid linkage.

[0057] The connection accessories include a transition stand 2, an adjustment pad 3, an adjustment pad 5, a rail buckle bracket assembly bolt 6, a bridge plate connection assembly bolt 7 and a sensor pressing assembly bolt 8; see Figure 7 The transition stand 2 is a metal workpiece with a boss, which is the installation base of the pressure sensor 1. The front end of the transition stand 2 is drilled with a mounting hole connected to the threaded spike on the rail support platform, and the upper surface of the rear end is drilled with a threaded hole for installing the pressure sensor 1; see Figure 8 The adjusting pad 3 is a metal square plate with a center hole drilled in the middle of the square plate. The adjusting pad 3 is used to adjust the horizontal height of the transition stand 2; see Figure 9 The adjustment pad 5 is a rubber gasket, the thickness of which is selected according to the installation height, and is used to assist in fine-tuning the adjustment pad 3; the rail buckle bracket assembly bolt 6, the bridge plate connection assembly bolt 7, and the sensor clamping assembly bolt 8 are all standard connectors;

[0058] like Figure 10-12 As shown, a connection hole connected to the bridge plate 42 is drilled at the front end of the pressure sensor 1, and a double connection hole connected to the transition stand 2 is reserved at the rear end.

[0059] In the assembled state, each measurement area needs to install a set of pressure sensors 1 on the inner and outer sides of the rails on both sides of the same sleeper, for a total of 4 pressure sensors 1 (see Figure 1 、 Figure 2 ); When installing, see Figure 3 、 Figure 4, with the center line of the sleeper as the center, the inside and outside of the rail are centered and buckled with two rail buckle brackets 4 on the lower edge of the rail, and the rail buckle bracket assembly bolts 6 are passed through the connecting holes 412 on the rail buckle seat 141a and tightened to fix the rail buckle bracket 4 on the rail; select an adjustment pad 5 of appropriate thickness and pass it through the center hole through the threaded spike pad on the rail support platform and place it on the rail support platform; after the adjustment pad 3 is installed on the adjustment pad 5, the transition platform 2 is installed from top to bottom, that is, the adjustment pad 3 passes through the center hole through the threaded spike on the rail support platform and falls on the adjustment pad 5; the front end of the transition platform 2 passes through the mounting hole through the threaded spike on the rail support platform and falls on the adjustment pad 3, and its rear end rests on the concrete upper surface of the sleeper end. ; By adjusting the adjustment pad 3 and the adjustment rubber pad 5, the upper surface of the transition platform 2 is made flat. After the height is appropriate, the nuts 11 of the threaded spikes are tightened to fix the transition platform 2 to the sleeper; after completing the above installation, the rail buckle bracket 4 is connected to the rail to form the same follower, and the transition platform 2 and the sleeper form a basic body; finally, the pressure sensor 1 is placed on the installation platform composed of the transition platform 2 and the bridge plate 42. After the front and rear of the pressure sensor 1 are aligned with the hole positions of the transition platform 2 and the rail buckle bracket 4, the bridge plate connecting combination bolts 7 are used to install and tighten the holes so that the front end is fixedly connected to the bridge plate 42, and the sensor tightening combination bolts 8 are used to install and tighten the holes so that the rear end is fixedly connected to the rear end of the transition platform 2.

[0060] In this embodiment 1, the bottom surface of the rail in the measuring area is suspended at a micrometer from the rail supporting platform, and there is space for the rail to swing and deform. When the wheel passes by, the deformation of the rail drives the rail buckle bracket 4 to deform, and the front end of the pressure sensor 1 is connected to the rail buckle bracket 4 and moves, while the rear end is connected to the sleeper and is relatively stationary. The misalignment difference drives the pressure sensor 1 to deform, so that the sensor is subjected to force and generates a signal.

[0061] Example 2:

[0062] like Figure 13-15 A novel rail weighing structure shown includes a fixing mechanism; the fixing mechanism is composed of a rail buckle bracket 4 installed on the rail, a pressure sensor 1 installed on the sleeper, and connecting accessories.

[0063] The rail buckle bracket 4 is a rail buckle seat II41b, which is square-shaped. The rail buckle seat II41b is provided with an inner groove 411, a connecting hole 412 and a hole for installing the pressure sensor 1. The size of the inner groove 411 is consistent with the lower convex edge of the rail cross section.

[0064] The connecting accessories include a support frame 13, an adjustment pad 3, a support frame connecting combination bolt 14, a rail buckle bracket combination bolt 6 and a sensor fixing combination bolt 15; the front end of the support frame is provided with a mounting hole for connecting with the threaded spikes on the rail sleeper support platform, and the upper surface of the rear end is provided with a threaded hole for installing the pressure sensor 1; the adjustment pad 3 is a square plate, and a center hole is opened in the middle of the adjustment pad 3; the support frame connecting combination bolt 14, the rail buckle bracket combination bolt 6 and the sensor fixing combination bolt 15 are all standard connecting parts.

[0065] The pressure sensor 1 is a long strip-shaped strain sensor 17. A connection hole connected to the support stand 13 is drilled in the middle of the long strip-shaped strain sensor 17, and double connection holes connected to the rail seat II41b are left at both the front and rear ends.

[0066] In the assembled state, each measuring area needs to install a set of pressure sensors 1 on the inner and outer sides of the rails on both sides of the same sleeper; during installation, with the center line of the sleeper as the center, the inner and outer sides of the rails are respectively aligned and buckled with the lower edge of the rail with two rail buckle seats II41b, and the rail buckle bracket assembly bolts 6 are inserted through the connecting holes 412 on the rail buckle seat II41b and tightened to fix the rail buckle seat II41b on the rail; the adjusting plate 3 passes through the threaded spike pad on the rail support platform through the center hole and falls on the rail support platform; the rear end of the support stand 13 passes through the threaded spike 16 on the rail support platform through the mounting hole It is installed on the adjusting pad 3 and tightened with the nut 11 to fix it to the sleeper; after completing the above installation, the rail seat II41b is connected to the rail to form the same follower, and the support stand 13 and the sleeper form a basic body; the strain sensor 17 is placed on the installation platform composed of the support stand 13 and the rail seat II41b, and the middle part of the strain sensor 17 is connected to the front end of the support stand 13 through the support stand connecting combination bolt 14, and the two ends of the strain sensor 17 are connected to the rail seat II41b through the sensor fixing combination bolt 15.

[0067] In this embodiment 2, the bottom surface of the rail in the measuring area is suspended at a micrometer from the rail supporting platform, and there is space for the rail to swing and deform. When the wheel passes by, the deformation of the rail drives the rail buckle bracket 4 to deform, and the front and rear ends of the strain sensor 17 are connected to the rail buckle bracket 4 and move with it, while the middle part is connected to the sleeper and is relatively stationary. The misalignment difference drives the strain sensor 17 to deform, so that the sensor is subjected to force and generates a signal.

[0068] Example 3:

[0069] like Figure 16-19 A novel rail weighing structure shown includes a fixing mechanism; the fixing mechanism is composed of a rail buckle bracket 4 installed on the rail, a pressure sensor 1 installed on the sleeper, and connecting accessories.

[0070] The rail buckle bracket 4 is a rail buckle seat III41c, which is square-shaped. An inner groove 411 is provided on the inner side of the rail buckle seat III41c, and a connecting hole 412 is provided on the outer side. A hole for installing the mounting plate on the sensor is provided at the bottom. The size of the inner groove 411 is consistent with the lower convex edge of the rail cross section.

[0071] The connecting accessories include a pillow buckle bracket Ⅰ19a, a sensor upper mounting plate 18a, a sensor lower support plate 18b, a rail buckle bracket combination bolt 6 and a sensor fixing combination bolt; the pillow buckle bracket Ⅰ19a includes a bridge seat and mounting seats respectively arranged at both ends of the bridge seat, the bridge seat is a semi-enclosed structure, and the downward concave area of ​​the semi-enclosed structure forms a pillow riding groove, the middle part of the bridge seat is provided with a mounting hole connected to the threaded spikes on the rail support platform, and the table surface of the mounting seat is provided with a threaded hole for installing the sensor lower support plate 18b; the middle part of the sensor upper mounting plate 18a is provided with a hole for installing the pressure sensor 1, and its two ends are provided with a hole for installing the rail buckle seat Ⅲ41c; the middle part of the sensor lower support plate 18b is provided with a hole for installing the pressure sensor 1, and its two ends are provided with a hole for installing the mounting seat on the pillow buckle bracket Ⅰ19a; the rail buckle bracket combination bolt 6 and the sensor fixing combination bolt 15 are both standard connecting parts.

[0072] The pressure sensor 1 is a cylindrical strain sensor 20 , which is composed of a pressure head and a strain sensing body.

[0073] In the assembled state, with the center line of the sleeper as the center, the inner and outer sides of the rail are aligned and buckled with the lower edge of the rail with two rail buckle seats III 41c, and the rail buckle bracket assembly bolts 6 are passed through the connecting holes 412 and tightened to fix the rail buckle seat III 41c on the rail; the said sleeper buckle bracket I 19a is divided into an inner and outer integral frame, which are buckled on the sleeper threaded spikes on both sides of the same rail, and the inner and outer sleeper buckle brackets I 19a are connected by the sensor lower support plate 18b and are tightened with the nut 11 to be fixedly connected to the sleeper, so that the inner and outer sleeper buckle brackets I 19a and the sleeper form the same basic body; the sensor upper mounting plate 18a is flat on the rail buckle seat III 41 c bottom, fixedly connected to the rail-clamping seat III 41c; the rail-clamping seat III 41c and the sensor upper mounting plate 18a form the same rigid linkage body with the rail; the sensor upper mounting plate 18a and the sensor lower support plate 18b serve as the upper and lower mounting platforms respectively, and the cylindrical strain force sensor 20 is placed between the sensor upper mounting plate 18a and the sensor lower support plate 18b, and the pressure head of the cylindrical strain force sensor 20 is fixedly connected to the sensor upper mounting plate 18a through the sensor fixing combination bolts, and the strain sensing body of the cylindrical strain force sensor 20 is connected to the sensor lower support plate 18b through the sensor fixing combination bolts.

[0074] In this embodiment 3, the bottom surface of the rail in the measuring area is not in direct contact with the rail support surface of the sleeper, and the rail has space for downward swinging deformation. When a vehicle passes by and its wheels roll over the rail, the rail elastically deforms downward, and the rail drives the rail seat III 41c and the sensor mounting plate 18a together with the pressure head of the sensor 20 to move downward, touching the strain sensing body of the compression sensor 20, thereby causing the strain sensor to be subjected to force and generate a signal. Example 4:

[0075] like Figure 20-23 A novel rail weighing structure shown includes a fixing mechanism; the fixing mechanism is composed of a rail buckle bracket 4 installed on the rail, a pressure sensor 1 installed on the sleeper, and connecting accessories.

[0076] The rail buckle bracket 4 is a rail buckle seat IV41d, which is square-shaped. An inner groove 411 is provided on the inner side of the rail buckle seat IV41d, a connecting hole 412 is provided on the outer side, and a hole for installing a pressure sensor is provided on the bottom. The size of the inner groove 411 is consistent with the lower convex edge of the cross section of the rail.

[0077] The connecting accessories include a pillow buckle bracket II 19b, a sensor rear mounting plate 22a, a sensor front mounting plate 22b, a rail buckle bracket assembly bolt 6, a front mounting plate assembly bolt 21 and a rear mounting plate assembly bolt 24; the pillow buckle bracket II 19b includes a bridge seat, the bridge seat includes a bridge seat middle section and side sections arranged on both sides of the bridge seat middle section, the middle section of the bridge seat is provided with a mounting hole connected to the threaded spikes on the rail sleeper support platform, and the side sections of the bridge seat are provided with threaded holes for installing the sensor front mounting plate 22b; the middle part of the sensor front mounting plate 22b is provided with a hole for installing the pressure sensor 1, and its two ends are provided with holes for installing the sensor rear mounting plate 22a; the sensor rear mounting plate 22a is provided with a hole for installing the pressure sensor 1 and a hole for installing the rail buckle seat IV 41d; the rail buckle bracket assembly bolt 6, the front mounting plate assembly bolt 21 and the rear mounting plate assembly bolt 24 are all standard connecting parts.

[0078] In the assembled state, with the center line of the sleeper as the center, the inner and outer sides of the rail are centered and buckled with two rail buckle seats IV41d on the lower edge of the rail, and the rail buckle bracket assembly bolts 6 are passed through the connecting holes 412 and tightened to fix the rail buckle seat IV41d on the rail; the sensor rear mounting plate 22a is placed flat on the bottom platform surface of the inner and outer rail buckle seats IV41d and fastened with bolts; the rail buckle seat IV41d and the sensor rear mounting plate 22a form the same rigid linkage body with the rail; the sleeper buckle bracket II19b is buckled on the sleeper bolt from top to bottom with the center line of the sleeper as the center The grooved rail spikes are fixed with threaded rail spike combination nuts, and one is installed on the inner and outer sides of the rail on the sleeper support table; the sensor front mounting plate 22b is placed flat on the mounting surface of the inner and outer sleeper buckle bracket Ⅱ19b, and the sensor front mounting plate 22b is tightened with the inner and outer sleeper buckle bracket Ⅱ19b by the front mounting plate combination bolts 21 to make it fixedly connected with the inner and outer sleeper buckle bracket Ⅱ19b; the inner and outer sleeper buckle bracket Ⅱ19b, the sensor front mounting plate 22b, and the sleeper 10 form the same basic body; the inner and outer sleeper buckle bracket Ⅱ19b, the sensor front mounting plate 22b, and the sleeper 10 form the same basic body.

[0079] Each measuring area needs to install a pressure sensor on both sides of the left and right sides of each rail sleeper.

[0080] The pressure sensor is a short strip-shaped strain sensor 23 , the front end of which is drilled with a connection hole connected to the sensor front mounting plate 22 b , and the rear end is left with double connection holes connected to the sensor rear mounting plate 22 a .

[0081] The front and rear ends of the short strip-shaped strain force sensor 23 are respectively mounted on the mounting table composed of the sensor rear mounting plate 22a and the sensor front mounting plate 22b. The front end of the short strip-shaped strain force sensor 23 is fixedly connected to the sensor front mounting plate 22b through the front mounting plate combination bolt 21, and the rear end of the short strip-shaped strain force sensor 23 is connected to the sensor rear mounting plate 22a through the rear mounting plate combination bolt 24.

[0082] In this embodiment 4, the bottom surface of the rail in the measuring area is not in direct contact with the rail support surface of the sleeper, and the rail has space for downward swinging deformation. When a vehicle passes by and the wheels roll over the rail, the rail elastically deforms downward. The deformation of the rail drives the rail seat IV41d and the sensor front mounting plate 22b to deform, and the front end of the short strip-shaped strain force sensor 23 is connected to the sensor front mounting plate 22b and moves with it, while the rear end of the short strip-shaped strain force sensor 23 is connected to the sleeper and relatively stationary. The misalignment difference drives the strain sensor to be squeezed and deformed, so that the strain sensor is subjected to force and generates a signal.

[0083] In order to not affect the operating requirements of large-scale machine tinkering, the mechanical structural geometric dimensions of the various components of the new track weighing structure described in Examples 1 to 4 are designed in accordance with the operating requirements of not affecting the tinkering of large-scale machine tinkering. After the components are assembled, the distance between one side of the new track weighing structure and the outermost contour edge of the bottom of the rail is 40mm-44mm.

[0084] This new track weighing structure can be widely used in railway freight car overload detection devices, track scales and other track weighing occasions, without affecting driving safety and without the need to install special sleepers, thus saving construction time and construction costs.

[0085] The parts not covered by the present invention are the same as the existing technologies or can be implemented by using the existing technologies. The above content is a further detailed description of the present invention in combination with specific preferred embodiments. It cannot be considered that the specific implementation of the present invention is limited to the description of the above embodiments. For ordinary technicians in the technical field to which the present invention belongs, they can make several simple deductions or substitutions without departing from the concept of the present invention, which should be regarded as falling within the scope of patent protection of the present invention as determined by the submitted claims.

Claims

1. A new type of track weighing structure, characterized by: The novel track weighing structure includes a fixing mechanism; the fixing mechanism is composed of a rail buckle bracket (4) installed on the rail, a pressure sensor (1) installed on the sleeper, and connecting accessories; after the novel track weighing structure is assembled, the bottom surface of the rail is not in direct contact with the rail support surface of the sleeper, and the fixing mechanism can swing up and down when the rail is compressed and deformed; The rail buckle bracket (4) includes a rail buckle seat I (41a) and a bridge plate (42); the rail buckle seat I (41a) is in a square shape, and is provided with an inner groove (411) and a connecting hole (412), and the size of the inner groove (411) matches the lower convex edge of the rail cross section; the bridge plate (42) is in a square strip shape, and a hole for installing the pressure sensor (1) is provided in the middle of the bridge plate (42); the rail buckle bracket (4) is a single entity consisting of a rail buckle seat I (41a) welded or bolted on each of the left and right sides below the bridge plate (42); The connecting accessories include a transition stand (2), an adjustment pad (3), an adjustment rubber pad (5), a rail buckle bracket assembly bolt (6), a bridge plate connection assembly bolt (7) and a sensor pressing assembly bolt (8); the front end of the transition stand (2) is provided with a mounting hole for connecting with a threaded spike on the rail sleeper support platform, and the upper surface of the rear end thereof is provided with a threaded hole for installing a pressure sensor (1); the adjustment pad (3) is in the shape of a square plate, and a center hole is opened in the middle of the adjustment pad (3); the adjustment rubber pad (5) is a rubber pad; the rail buckle bracket assembly bolt (6), the bridge plate connection assembly bolt (7) and the sensor pressing assembly bolt (8) are all standard connecting parts; In the assembled state, each measuring area needs to install a set of pressure sensors (1) on the inner and outer sides of the rails on both sides of the same sleeper; during installation, with the center line of the sleeper as the center, the inner and outer sides of the rails are aligned and buckled with the lower edge of the rails with two rail buckle brackets (4), and the rail buckle bracket combination bolts (6) are passed through the connecting holes (412) and tightened to fix the rail buckle brackets (4) on the rails; the adjustment pad (5) passes through the threaded spike pad on the rail support platform and is placed on the rail support platform; the adjustment pad (3) passes through the threaded spike on the rail support platform through the center hole and falls on the adjustment pad (5); the front end of the transition stand (2) passes through the rail support platform through the mounting hole The threaded spike is mounted on the adjusting pad (3) and is fixedly connected to the sleeper by tightening the nut (11), and its rear end is placed on the upper surface of the concrete at the end of the sleeper; the rail buckle bracket (4) is connected to the rail to form a same follower, and the transition stand (2) and the sleeper form a base body; the pressure sensor (1) is placed on the installation platform composed of the transition stand (2) and the bridge plate (42), one end of the pressure sensor (1) is connected to the bridge plate (42) through the bridge plate connecting combination bolt (7), and the other end of the pressure sensor (1) is connected to the rear end of the transition stand (2) through the sensor pressing combination bolt (8).

2. A new type of track weighing structure according to claim 1, characterized in that: The novel rail weighing structure further comprises a force measuring section composed of a shear force sensor (12) installed on the rail waist; the profile and size of the pressure sensor (1) are customized according to the installation conditions and driving environment.

3. A new type of track weighing structure, characterized by: The novel track weighing structure includes a fixing mechanism; the fixing mechanism is composed of a rail buckle bracket (4) installed on the rail, a pressure sensor (1) installed on the sleeper, and connecting accessories; after the novel track weighing structure is assembled, the bottom surface of the rail is not in direct contact with the rail support surface of the sleeper, and the fixing mechanism can swing up and down when the rail is compressed and deformed; The rail buckle bracket (4) is a rail buckle seat II (41b), the rail buckle seat II (41b) is in a block shape, and the rail buckle seat II (41b) is provided with an inner groove (411), a connection hole (412) and a hole position for installing a pressure sensor (1), and the size of the inner groove (411) is consistent with the lower convex edge of the rail cross section; The connecting auxiliary parts include a support frame (13), an adjustment pad (3), a support frame connecting assembly bolt (14), a rail buckle bracket assembly bolt (6) and a sensor fixing assembly bolt (15); the front end of the support frame is provided with a mounting hole for connecting with a threaded spike on the rail support platform, and the upper surface of the rear end is provided with a threaded hole for installing a pressure sensor (1); the adjustment pad (3) is a square plate, and a center hole is opened in the middle of the adjustment pad (3); the support frame connecting assembly bolt (14), the rail buckle bracket assembly bolt (6) and the sensor fixing assembly bolt (15) are all standard connecting parts; In the assembled state, each measuring area needs to install a set of pressure sensors (1) on the inner and outer sides of the rails on both sides of the same sleeper; during installation, with the center line of the sleeper as the center, the inner and outer sides of the rails are respectively aligned and buckled with the lower edge of the rails with two rail buckle seats II (41b), and the rail buckle bracket assembly bolts (6) are passed through the connecting holes (412) and tightened to fix the rail buckle seats II (41b) on the rails; the adjusting pad (3) passes through the threaded spike pad on the rail support platform through the center hole and falls on the rail support platform; the rear end of the support stand (13) passes through the threaded spike (16) on the rail support platform through the mounting hole ) is placed on the adjustment pad (3) and is tightened with a nut (11) to be fixedly connected to the sleeper; the rail holder II (41b) is connected to the rail to form a same follower, and the support frame (13) and the sleeper form a base body; the pressure sensor is placed on the installation platform composed of the support frame (13) and the rail holder II (41b), the middle part of the pressure sensor is connected to the front end of the support frame (13) through the support frame connecting combination bolt (14), and the two ends of the pressure sensor are connected to the rail holder II (41b) through the sensor fixing combination bolt (15).

4. A new type of track weighing structure according to claim 3, characterized in that: The novel rail weighing structure further comprises a force measuring section composed of a shear force sensor (12) installed on the rail waist; the profile and size of the pressure sensor (1) are customized according to the installation conditions and driving environment.

5. A new type of track weighing structure, characterized by: The novel track weighing structure includes a fixing mechanism; the fixing mechanism is composed of a rail buckle bracket (4) installed on the rail, a pressure sensor (1) installed on the sleeper, and connecting accessories; after the novel track weighing structure is assembled, the bottom surface of the rail is not in direct contact with the rail support surface of the sleeper, and the fixing mechanism can swing up and down when the rail is compressed and deformed; The rail buckle bracket (4) is a rail buckle seat IV (41d), and the rail buckle seat IV (41d) is in a square shape. The inner side of the rail buckle seat IV (41d) is provided with an inner groove (411), the outer side thereof is provided with a connection hole (412), and the bottom thereof is provided with a hole for installing a pressure sensor. The size of the inner groove (411) is consistent with the lower convex edge of the cross section of the rail. The connecting auxiliary parts include a rail buckle bracket II (19b), a sensor rear mounting plate (22a), a sensor front mounting plate (22b), a rail buckle bracket assembly bolt (6), a front mounting plate assembly bolt (21) and a rear mounting plate assembly bolt (24); the rail buckle bracket II (19b) includes a bridge seat, the bridge seat includes a bridge seat middle section and side sections arranged on both sides of the bridge seat middle section, the bridge seat middle section is provided with a mounting hole connected to the threaded spike on the rail support platform, and the bridge seat side sections are provided with a mounting hole for connecting to the threaded spike on the rail support platform The threaded hole of the sensor front mounting plate (22b) is installed; the sensor front mounting plate (22b) is provided with a hole for mounting the pressure sensor (1) and a hole for mounting the sensor rear mounting plate (22a); the sensor rear mounting plate (22a) is provided with a hole for mounting the pressure sensor (1) and a hole for mounting the rail buckle seat IV (41d); the rail buckle bracket assembly bolt (6), the front mounting plate assembly bolt (21) and the rear mounting plate assembly bolt (24) are all standard connecting parts; In the assembled state, with the center line of the sleeper as the center, the inner and outer sides of the rail are aligned and buckled with two rail buckle seats IV (41d) on the lower edge of the rail, and the rail buckle bracket assembly bolts (6) are passed through the connection holes (412) and tightened to fix the rail buckle seat IV (41d) on the rail; the sensor rear mounting plate (22a) is placed flat on the bottom platform surface of the inner and outer rail buckle seats IV (41d) and fastened with bolts; the rail buckle seat IV (41d), the sensor rear mounting plate (22a) and the rail form a rigid linkage body; the sleeper buckle bracket II (19b) is installed with The sleeper is centered on the center line of the sleeper and is buckled from top to bottom on the sleeper threaded spikes and locked with a threaded spike combination nut. One is installed on each of the inner and outer sides of the sleeper rail support table rail. The sensor front mounting plate (22b) is placed flat on the mounting table of the inner and outer sleeper buckle brackets II (19b). The sensor front mounting plate (22b) is fastened with the inner and outer sleeper buckle brackets II (19b) by the front mounting plate combination bolts (21) so that it is fixedly connected to the inner and outer sleeper buckle brackets II (19b). The inner and outer sleeper buckle brackets II (19b), the sensor front mounting plate (22b), and the sleeper (10) form a common base body. The front and rear ends of the pressure sensor are respectively mounted on a mounting table consisting of a sensor rear mounting plate (22a) and a sensor front mounting plate (22b); the front end of the pressure sensor is fixedly connected to the sensor front mounting plate (22b) via a front mounting plate assembly bolt (21); and the rear end of the pressure sensor is connected to the sensor rear mounting plate (22a) via a rear mounting plate assembly bolt (24).

6. A new type of track weighing structure according to claim 5, characterized in that: The novel rail weighing structure further comprises a force measuring section composed of a shear force sensor (12) installed on the rail waist; the profile and size of the pressure sensor (1) are customized according to the installation conditions and driving environment.

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