Bogie primary spring clearance measuring device

Abstract

The utility model relates to a kind of bogie primary spring clearance measuring devices. This measuring device includes moving mechanism and distance measuring piece. Distance measuring piece is used to measure the distance of distance measuring piece and bogie along first direction, to obtain distance signal;Moving mechanism is set to one side of weighing platform, and moving mechanism is provided with output end, and distance measuring piece is set to the output end of moving mechanism, and moving mechanism can drive distance measuring piece to move along second direction. This measuring device is set on each weighing platform, and the measurement of bogie four primary spring clearances can be completed synchronously, without running around for labor personnel, reduce labor intensity. And distance measuring piece can obtain distance signal at different positions in second direction in the process of moving along second direction, and the size value of primary spring clearance can be obtained by comparing distance signal obtained by distance measuring piece, without using tool to measure laboriously, reduce the time loss and physical consumption of manual operation.

Description

Technical Field

[0001] This utility model relates to the field of bogie testing technology, and in particular to a device for measuring the clearance of the primary springs of a bogie. Background Technology

[0002] like Figure 1 As shown, the bogie includes primary springs, located between the bogie wheel train and the bogie frame. Their main function is to support the car body load, buffer vertical impacts between the wheels and rails, and dampen vibrations. During the bogie static load test, the primary spring clearance needs to be measured. The primary spring clearance refers to the gap between the lower side of the frame and the upper side at the center of the wheel train. Figure 2 As shown in h.

[0003] In existing technologies, manual measurements are typically performed using tools such as rulers, steel rulers, and vernier calipers. During measurement, the tool is placed at the primary spring clearance position, ensuring it is parallel to the dimensional direction of the primary spring clearance, and then the reading is taken. However, due to the complex environment of the bogie static load test site, operators need to walk around the static load test bench to measure the primary spring clearance at each of the four corners, requiring a considerable distance and proving time-consuming and labor-intensive. Utility Model Content

[0004] Therefore, it is necessary to provide a bogie primary spring clearance measuring device to address the problem of time-consuming and labor-intensive primary spring clearance measurement.

[0005] A bogie primary spring clearance measuring device, comprising:

[0006] A distance measuring device is used to measure the distance between the distance measuring device and the bogie along a first direction to obtain a distance signal;

[0007] A moving mechanism is provided on one side of the weighing platform. The moving mechanism is provided with an output end. The distance measuring element is provided at the output end of the moving mechanism. The moving mechanism can drive the distance measuring element to move along a second direction. The second direction is parallel to the dimensional direction of the spring gap (h). The first direction is perpendicular to the second direction.

[0008] In one embodiment, the moving mechanism can also drive the rangefinder to move along a third direction so that the rangefinder and the first spring gap (h) are aligned in the second direction, and the third direction is perpendicular to both the first direction and the second direction.

[0009] In one embodiment, the moving mechanism includes:

[0010] First driving component;

[0011] A moving component is disposed at the output end of the first driving member, the first driving member being configured to drive the moving component to move along the third direction, and a ranging member is disposed at the output end of the moving component, the moving component being configured to drive the ranging member to move along the second direction.

[0012] In one embodiment, the moving component includes:

[0013] The second driving component has its fixed end connected to the output end of the first driving component;

[0014] A third driving member is disposed at the output end of the second driving member, the second driving member being configured to drive the third driving member to move along the second direction, and a ranging member is disposed at the output end of the third driving member, the third driving member being configured to drive the ranging member to move along the second direction.

[0015] In one embodiment, the moving mechanism further includes a first guide component, the first guide component comprising:

[0016] A first guide rail and a first guide block, the first guide block extending along the third direction, the first guide block slidingly engaging with the first guide rail, one of the weighing platform and the moving component being connected to the first guide rail, and the other being connected to the first guide block.

[0017] In one embodiment, the moving component further includes a first mounting plate, and the fixed end of the second driving member is fixedly connected to the output end of the first driving member through the first mounting plate. The moving mechanism further includes a second guide component, which includes:

[0018] The second guide rail and the second guide block extend along the second direction and are slidably fitted onto the second guide rail. One of the first mounting plate and the third driving member is connected to the second guide rail, and the other is connected to the second guide block.

[0019] In one embodiment, the bogie primary spring clearance measuring device further includes:

[0020] The terminal module is communicatively connected to the ranging device, and the terminal module is capable of receiving the distance signal.

[0021] In one embodiment, the moving mechanism further includes:

[0022] A placement component is disposed at the output end of the moving mechanism. The placement component includes a connected accommodating space and a clearance opening. The rangefinder is housed within the accommodating space. The rangefinder is capable of measuring the distance to the bogie along the first direction through the clearance opening.

[0023] In one embodiment, the moving mechanism further includes a third guiding component, the third guiding component comprising:

[0024] A guide rod and a guide hole are provided. The guide rod extends along the second direction and passes through the guide hole. One of the fixed ends of the placement component and the moving mechanism is connected to the guide rod, and the other has the guide hole.

[0025] In one embodiment, the bogie primary spring clearance measuring device further includes a protective cover, the protective cover comprising:

[0026] A protective cover body is provided over the moving mechanism, and the top end of the protective cover body has an opening along the second direction;

[0027] A top cover is used to seal or open the opening.

[0028] The aforementioned bogie primary spring clearance measuring device, by installing this measuring device on each weighing platform, can simultaneously measure the clearance of all four primary springs of the bogie, eliminating the need for workers to run around and reducing labor intensity. This measuring device drives a distance measuring element to move along the second direction via a drive mechanism, and the distance measuring element can acquire distance signals at different positions in the second direction in real time during the movement. By comparing multiple distance signal values, two distance signals with abrupt changes in value can be obtained. The distance difference in the second direction corresponding to the two distance signals is the size value of the primary spring clearance. The size value of the primary spring clearance can be obtained by comparing the distance signals acquired by the distance measuring element, eliminating the need for laborious measurement using tools and reducing the time and physical exertion of manual operation. Attached Figure Description

[0029] Figure 1 This is a schematic diagram of the bogie structure in the prior art.

[0030] Figure 2 This is a schematic diagram showing the coordination of a bogie primary spring clearance measuring device (without a protective cover), a weighing platform, and a portion of the bogie as provided in an embodiment of this utility model.

[0031] Figure 3 This is a schematic diagram of the bogie primary spring clearance measuring device (without cover) and weighing platform provided in an embodiment of the present invention.

[0032] Figure 4 This is a schematic diagram of a bogie primary spring clearance measuring device and a weighing platform provided in an embodiment of the present invention.

[0033] The above figures include the following reference numerals:

[0034] 1000, Bogie; 1001, Primary spring; 1002, Wheel train; 1003, Frame; 2000, Weighing platform; h, Primary spring clearance;

[0035] 1. Moving mechanism; 11. First driving component; 12. Moving assembly; 121. Second driving component; 122. Third driving component; 13. First guide assembly; 131. First guide rail; 132. First guide block; 14. Second guide assembly; 141. Second guide rail; 142. Second guide block; 15. Placement assembly; 151. Placement plate; 152. Enclosure; 153. Accommodating space; 16. Third guide assembly; 161. Guide rod; 162. Guide hole; 171. First mounting plate; 172. Second mounting plate; 173. Third mounting plate;

[0036] 2. Distance measuring device;

[0037] 3. Protective cover; 31. Protective cover body; 32. Top cover; 33. Opening. Detailed Implementation

[0038] To make the above-mentioned objects, features, and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a full understanding of this utility model. However, this utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed below.

[0039] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0040] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0041] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0042] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0043] It should be noted that when an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0044] like Figure 2 , Figure 3 As shown, an embodiment of this utility model provides a bogie primary spring clearance measuring device, hereinafter referred to as the measuring device, which is used to measure the primary spring clearance h of a bogie 1000. This measuring device includes a moving mechanism 1 and a distance measuring element 2. The distance measuring element 2 is used to measure the distance between the distance measuring element 2 and the bogie 1000 along a first direction to obtain a distance signal; the moving mechanism 1 is disposed on one side of the weighing platform 2000, and the moving mechanism 1 is provided with an output end. The distance measuring element 2 is disposed at the output end of the moving mechanism 1. The moving mechanism 1 can drive the distance measuring element 2 to move along a second direction, which is parallel to the dimensional direction of the primary spring clearance h, and the first direction is perpendicular to the second direction. The first direction is... Figures 2-4 The Y direction in the middle, the second direction is Figures 2-4 In the Z direction, the third direction is Figures 2-4 The X direction in the equation.

[0045] like Figure 1As shown, the bogie 1000 has four wheel trains 1002. Each of the four wheel trains 1002 is connected to the frame 1003 by a primary spring 1001. Therefore, there are four places on the bogie 1000 where the primary spring clearance h needs to be measured. When the bogie 1000 is subjected to a static load test, the four wheel trains 1002 of the bogie 1000 are respectively located on the four weighing platforms 2000 of the static load test bench. Each weighing platform 2000 is equipped with a measuring device to simultaneously measure the corresponding primary spring clearance h.

[0046] During measurement, the distance measuring element 2 moves along the second direction under the drive of the moving mechanism 1, that is, along the dimensional direction of the primary spring gap h. During this movement, the distance measuring element 2 acquires distance signals at different positions along the second direction in real time. Since the distance signal value acquired by the distance measuring element 2 when it passes through the primary spring gap h along the second direction is much larger than the distance signal values ​​acquired at other positions on the bogie 1000, by comparing multiple distance signal values, two distance signals with abrupt changes in value can be obtained. The distance difference in the second direction corresponding to the two distance signals is the dimensional value of the primary spring gap h.

[0047] It is understandable that the speed V at which the moving mechanism 1 drives the ranging element 2 to move along the second direction is known, and the measurement interval time of the ranging element 2 is also known. It is also known that the distance difference in the second direction corresponding to the two distance signals can be obtained by calculating the number of tests between the two distance signals with abrupt changes in value. For example, the first distance signal with abrupt change in value is obtained from the 15th measurement of the rangefinder 2, and the second distance signal with abrupt change in value is obtained from the 26th measurement of the rangefinder 2. The number of tests between the two distance signals with abrupt changes in value is 11. Therefore, the spring clearance... .

[0048] By installing this measuring device on each weighing platform 2000, the measurement of the clearance h of the four primary springs of the bogie 1000 can be completed simultaneously, eliminating the need for workers to run around and reducing labor intensity. This measuring device drives the measuring element 2 to move along the second direction through the drive mechanism 1. During the movement along the second direction, the measuring element 2 can acquire distance signals at different positions in the second direction in real time. By comparing the values ​​of multiple distance signals, two distance signals with abrupt changes in value can be obtained. The distance difference in the second direction corresponding to the two distance signals is the size value of the primary spring clearance h. The size value of the primary spring clearance h can be obtained by comparing the distance signals acquired by the measuring element 2. There is no need to use tools for laborious measurement, which reduces the time and physical exertion of manual operation.

[0049] Specifically, the ranging device 2 can be a laser ranging sensor, millimeter-wave radar, structured light sensor, time-of-flight camera, etc., but this embodiment does not limit it.

[0050] In one optional embodiment, the measuring device further includes a terminal module, which is communicatively connected to the ranging device 2 and can receive distance signals. After receiving the distance information, the terminal module can generate a distance-displacement curve based on the distance information. The horizontal axis represents the distance measured by the ranging device 2 to the bogie 1000 along a third direction, and the vertical axis represents the relative position of the ranging device 2 in the first direction. Since the distance signal obtained by the ranging device 2 moving along the second direction through the primary spring gap h is much larger than the distance signal obtained at other positions on the bogie 1000, the scanning segment belonging to the primary spring gap h can be easily identified on the scanning curve. By subtracting the vertical coordinates of the beginning and end of this scanning segment, the value of the primary spring gap h can be obtained.

[0051] It is understandable that the moving mechanism 1 drives the ranging component 2 to move at a constant speed V along the first direction, and the ordinate of the starting point of the movement can be defined as... During the measurement process, the rangefinder 2 is at intervals By performing a distance measurement, the ordinate of each measurement point can be obtained, along with the ordinate value. This allows the generation of a distance-displacement curve. Assuming that the ordinates of the two points where the horizontal axis of the distance-displacement curve changes abruptly are respectively... and The measured spring clearance .

[0052] It should be noted that the terminal module can be an industrial control computer, a programmable logic controller with a human-machine interface, a laptop, a cloud server, or other computing devices. This embodiment does not limit this, and any existing terminal module that can communicate with the ranging device 2 and receive information transmitted by the ranging device 2 can be selected.

[0053] Optionally, the moving mechanism 1 can also drive the ranging element 2 to move along a third direction, so that the ranging element 2 and the primary spring gap h are aligned in the second direction, and the third direction is perpendicular to both the first and second directions. Before measurement, the moving mechanism 1 first drives the ranging element 2 to move along the third direction, so that the ranging element 2 and the primary spring gap h are aligned in the second direction, to meet the subsequent measurement requirements. This measuring device, by driving the ranging element 2 to move along the third direction through the moving mechanism 1, can meet the measurement requirements of bogies 1000 with different positions of the primary spring gap h in the third direction, and has strong applicability.

[0054] Optionally, such as Figure 2 , Figure 3As shown, the moving mechanism 1 includes a first driving member 11 and a moving component 12. The moving component 12 is disposed at the output end of the first driving member 11, and the first driving member 11 is configured to drive the moving component 12 to move along a third direction. The ranging member 2 is disposed at the output end of the moving component 12, and the moving component 12 is configured to drive the ranging member 2 to move along a second direction. The first driving member 11 is used to drive the moving component 12 to move along a third direction, thereby driving the ranging member 2 disposed at the output end of the moving component 12 to move along a third direction, so as to achieve the alignment of the ranging member 2 with the spring gap h along the second direction. The moving component 12 is used to carry the ranging member 2 and drive it to move along the second direction, so as to achieve the movement of the ranging member 2 along the second direction to obtain distance signals at different positions. Through the dual-layer driving architecture of the first driving member 11 and the moving component 12, the movement of the ranging member 2 in the second and third directions is realized.

[0055] It should be noted that the first driving component 11 can be a servo motor, a stepper motor, etc. The specific selection is not limited in this embodiment, and can be selected according to actual needs.

[0056] Optionally, the moving mechanism 1 further includes a first guide component 13, which is configured to guide the movement of the moving component 12 along a third direction. The first guide component 13 can guide the moving component 12 to move in a preset direction, i.e., along a third direction, to prevent the moving component 12 from deviating from its trajectory or swaying during movement, and to ensure that the moving component 12 can only produce displacement along a third direction.

[0057] In one alternative embodiment, such as Figure 2 , Figure 3 As shown, the first guide assembly 13 includes a first guide rail 131 and a first guide block 132. The first guide block 132 extends along a third direction and is slidably fitted onto the first guide rail 131. One of the weighing platform 2000 and the moving assembly 12 is connected to the first guide rail 131, and the other is connected to the first guide block 132. The first guide rail 131 and the first guide block 132 have high linear motion accuracy and good repeatability. They are not prone to bending deformation after long-term use. Furthermore, the installation process of the first guide rail 131 and the first guide block 132 is relatively simple, and maintenance is convenient, reducing installation and maintenance time and costs.

[0058] In one optional embodiment, the first guide rail 131 is mounted on the weighing platform 2000, and the first guide block 132 is mounted on the moving component 12; in another optional embodiment, the first guide rail 131 is mounted on the moving component 12, and the first guide block 132 is mounted on the weighing platform 2000. The specific installation positions of the first guide block 132 and the second guide block 142 are determined according to actual needs, and are not limited in this embodiment.

[0059] Optionally, there are multiple first guide components 13, which are distributed at intervals along the second direction. The multiple first guide components 13 together guide and constrain the movement of the moving component 12, further reducing possible offset and swaying during movement, and further improving movement accuracy and stability; the multiple first guide components 13 can distribute the load of the moving component 12, extend the service life of the first guide components 13, and improve the reliability of this moving mechanism 1.

[0060] For example, such as Figure 2 , Figure 3 As shown, there are two first guide components 13, which are disposed on both sides of the first drive member 11 along the second direction.

[0061] Optionally, such as Figure 2 , Figure 3 As shown, the moving component 12 includes a second driving member 121 and a third driving member 122. The fixed end of the second driving member 121 is connected to the output end of the first driving member 11. The third driving member 122 is disposed at the output end of the second driving member 121. The second driving member 121 is configured to drive the third driving member 122 to move along a second direction. The ranging member 2 is disposed at the output end of the third driving member 122. The third driving member 122 is configured to drive the ranging member 2 to move along the second direction.

[0062] The second drive member 121 and the third drive member 122 can employ drive structures with different power and speed characteristics. For example, the second drive member 121 can be a high-power, low-speed drive structure to enable the ranging member 2 to move rapidly and over a wide range in the second direction, thereby shortening the preparation time before ranging. That is, before ranging, the second drive member 121 first drives the ranging member 2 rapidly along the second direction to move it to a position close to the primary spring gap h, thus reducing the time required for subsequent ranging. The third drive member 122 can be a low-power, high-speed drive structure to enable the ranging member 2 to move precisely along the second direction, improving the positional accuracy of the ranging member 2 during ranging and thus improving the measurement accuracy of the primary spring gap h. Furthermore, through the two-stage drive of the second drive member 121 and the third drive member 122, the volume of the moving mechanism 1 can be reduced while ensuring that the travel distance of the ranging member 2 along the second direction meets the measurement requirements, thereby reducing the space occupied by this measuring device.

[0063] Optionally, the moving mechanism 1 further includes a second guide assembly 14, which is configured to guide the movement of the third drive member 122 along a second direction. The second guide assembly 14 can guide the third drive member 122 to move in a preset direction, i.e., along the second direction, to prevent the third drive member 122 from deviating from its trajectory or wobbling during movement, and to ensure that the third drive member 122 can only generate displacement along the second direction.

[0064] Among them, such as Figure 2 , Figure 3 As shown, the moving component 12 also includes a first mounting plate 171. The fixed end of the second drive component 121 is fixedly connected to the output end of the first drive component 11 through the first mounting plate 171. The first mounting plate 171 provides an installation position for the second guide component 14.

[0065] In one alternative embodiment, such as Figure 2 , Figure 3 As shown, the second guide assembly 14 includes a second guide rail 141 and a second guide block 142. The second guide block 142 extends along a second direction and is slidably fitted onto the second guide rail 141. One of the first mounting plate 171 and the third drive member 122 is connected to the second guide rail 141, and the other is connected to the second guide block 142. The second guide rail 141 and the second guide block 142 have high linear motion accuracy and good repeatability. They are not prone to bending deformation after long-term use. Furthermore, the installation process of the second guide rail 141 and the second guide block 142 is relatively simple, and maintenance is convenient, reducing installation and maintenance time and costs.

[0066] In one embodiment, the second guide rail 141 is mounted on the first mounting plate 171, and the second guide block 142 is mounted on the third driving member 122; in another optional embodiment, the second guide rail 141 is mounted on the third driving member 122, and the second guide block 142 is mounted on the first mounting plate 171. The specific mounting positions of the second guide block 142 and the second guide block 142 are determined according to actual needs, and are not limited in this embodiment.

[0067] Optionally, there are multiple second guide components 14, which are spaced apart along a third direction. The multiple second guide components 14 together guide and constrain the movement of the third drive component 122, further reducing possible offset and swaying during movement, and further improving movement accuracy and stability; the multiple second guide components 14 can distribute the load of the third drive component 122, extend the service life of the second guide components 14, and improve the reliability of this moving mechanism 1.

[0068] For example, such as Figure 2 , Figure 3 As shown, there are two second guide components 14, which are disposed on both sides of the second drive member 121 along a third direction.

[0069] In an alternative embodiment, as shown in Figure 2 and Figure 3 , the moving assembly 12 further comprises a second mounting plate 172. The fixed end of the third driving member 122 is fixedly connected to the output end of the second driving member 121 via the second mounting plate 172, and the second mounting plate 172 enables the third driving member 122 to be connected to the output end of the second driving member 121 more conveniently and simply.

[0070] Optionally, as shown in Figure 2 and Figure 3 , the moving mechanism 1 further comprises a placement assembly 15, the placement assembly 15 is disposed at the output end of the moving mechanism 1, the placement assembly 15 comprises a communicating accommodation space 153 and an avoidance opening, the distance measuring member 2 is accommodated in the accommodation space 153, and the distance measuring member 2 can measure the distance between the distance measuring member 2 and the bogie 1000 along the first direction through the avoidance opening. The accommodation space 153 provides a safe installation environment for the distance measuring member 2, which can prevent the distance measuring member 2 from physical damage such as collision and scraping by external objects during operation, prolong the service life of the distance measuring member 2, and can block dust and the like from polluting the distance measuring member 2 to a certain extent, so as to ensure the cleanliness of the distance measuring member 2. The avoidance opening can ensure that the measuring beam or signal of the distance measuring member 2 can pass through accurately, so as to ensure that the distance measuring member 2 can perform measurement smoothly.

[0071] Optionally, as shown in Figure 2 and Figure 3 , the placement assembly 15 comprises a placement plate 151 and a surrounding frame 152, the placement plate 151 is disposed at the output end of the moving mechanism 1; the surrounding frame 152 is disposed on the placement plate 151, and the surrounding frame 152 is provided with the aforementioned accommodation space 153 and the avoidance opening. The placement plate 151 serves as a basic support structure, which provides a stable bearing surface for the surrounding frame 152, the surrounding frame 152 is disposed on the placement plate 151, and the surrounding frame 152 is provided with the accommodation space 153 and the avoidance opening, so as to provide a reliable working environment for the distance measuring member 2.

[0072] Specifically, the surrounding frame 152 comprises four frame plates, the four frame plates are arranged at included angles and connected end to end, so as to enclose and form a "square" shaped structure, and further form the accommodation space 153 and the avoidance opening.

[0073] It should be noted that the surrounding frame 152 can be fixedly connected to the placement plate 151 by means of adhesive bonding, welding and other methods, and can also be detachably fixed to the placement plate 151 by fasteners such as clamping connection and bolts.

[0074] Specifically, as shown in Figure 2 and Figure 3 , the placement assembly 15 is disposed at the output end of the third driving member 122.

[0075] Optionally, the moving mechanism 1 further includes a third guide assembly 16, which is configured to guide the movement of the ranging member 2 along the second direction. The third guide assembly 16 can guide the ranging member 2 to move in a preset direction, i.e., along the second direction, to prevent the ranging member 2 from deviating from its trajectory or wobbling during movement, and to ensure that the ranging member 2 can only produce displacement along the second direction.

[0076] In one alternative embodiment, such as Figure 2 , Figure 3 As shown, the third guide assembly 16 includes a guide rod 161 and a guide hole 162. The guide rod 161 extends along the second direction and passes through the guide hole 162. One of the fixed ends of the placement assembly 15 and the moving mechanism 1 is connected to the guide rod 161, and the other end has the guide hole 162. The guide rod 161 extends along the second direction and, in conjunction with the guide hole 162, provides precise linear motion guidance for the placement assembly 15, ensuring that the ranging element 2 moves strictly along the second direction, avoiding deviation or shaking, and improving the accuracy of detection.

[0077] In one optional embodiment, the guide rod 161 is mounted on the placement component 15, and the guide hole 162 is formed at the fixed end of the moving mechanism 1; in another optional embodiment, the guide rod 161 is mounted on the fixed end of the moving mechanism 1, and the guide hole 162 is formed at the placement component 15. The specific arrangement depends on the actual needs, and this embodiment is not limited thereto.

[0078] In this embodiment, as Figure 2 , Figure 3 As shown, the fixed end of the third drive member 122 is connected to the third mounting plate 173. The guide rod 161 can be mounted on the third mounting plate 173, or the guide hole 162 can be opened on the third mounting plate 173.

[0079] Optionally, there are multiple guide rods 161, which are spaced apart along a third direction. The multiple guide rods 161 together guide and constrain the movement of the ranging device 2, further reducing possible offsets and swaying during movement, and further improving movement accuracy and stability.

[0080] For example, such as Figure 2 , Figure 3 As shown, there are two guide rods 161, which are set on both sides of the ranging element 2 along the third direction.

[0081] Optionally, such as Figure 4As shown, this measuring device also includes a protective cover 3, which comprises a cover body 31 and a top cover 32. The cover body 31 covers the moving mechanism 1, and the top of the cover body 31 along the second direction has an opening 33. The top cover 32 is used to seal or open the opening 33. The protective cover 3 can completely cover the moving mechanism 1, thus protecting the measuring device and preventing accidental splashing debris from colliding with the moving mechanism 1, thereby extending the service life of the moving mechanism 1. It can also prevent dust, dirt, and other impurities from entering the interior of the moving mechanism 1, keeping the interior of the moving mechanism 1 clean and ensuring its normal operation. By providing an opening 33 at the top of the cover body 31 along the second direction and sealing or opening the opening 33 with the top cover 32, when measurement is needed, the top cover 32 can open the opening 33 to ensure smooth measurement. When measurement is not needed, the top cover 32 can seal the opening 33, ensuring that the protective cover 3 fully covers the moving mechanism 1.

[0082] In one optional embodiment, the top cover 32 is rotatably connected to the cover body 31. Rotating the top cover 32 causes it to block or open the opening 33. This measuring device also includes a fourth driving member, which is kinetically connected to the top cover 32 and configured to drive the top cover 32 to rotate. The fourth driving member enables automated control of the opening and closing of the top cover 32, eliminating the need for manual operation and reducing the time and labor intensity of manual operation.

[0083] Specifically, the top cover 32 is rotatably connected to the cover body 31 via a rotating shaft. The fixed end of the fourth drive member is fixed to the outside of the cover body 31, and the output end of the fourth drive member is connected to the rotating shaft via a transmission, such as gear transmission, so as to drive the rotating shaft to rotate through the fourth drive member, thereby realizing the automatic opening and closing of the top cover 32.

[0084] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0085] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A device for measuring the clearance of primary springs in a bogie, characterized in that, include: The distance measuring device (2) is used to measure the distance between the distance measuring device (2) and the bogie (1000) along a first direction to obtain a distance signal; A moving mechanism (1) is provided on one side of the weighing platform (2000). The moving mechanism (1) is provided with an output end. The measuring element (2) is provided at the output end of the moving mechanism (1). The moving mechanism (1) can drive the measuring element (2) to move along a second direction. The second direction is parallel to the dimension direction of the spring gap (h). The first direction is perpendicular to the second direction.

2. The bogie primary spring clearance measuring device according to claim 1, characterized in that, The moving mechanism (1) can also drive the measuring element (2) to move along a third direction so that the measuring element (2) and the gap (h) of the first spring are directly opposite each other along the second direction, and the third direction is perpendicular to both the first direction and the second direction.

3. The bogie primary spring clearance measuring device according to claim 2, characterized in that, The moving mechanism (1) includes: First driving component (11); A moving component (12) is disposed at the output end of the first driving member (11), the first driving member (11) is configured to drive the moving component (12) to move along the third direction, and a ranging member (2) is disposed at the output end of the moving component (12), the moving component (12) is configured to drive the ranging member (2) to move along the second direction.

4. The bogie primary spring clearance measuring device according to claim 3, characterized in that, The moving component (12) includes: The second driving element (121) has its fixed end connected to the output end of the first driving element (11); The third driving member (122) is disposed at the output end of the second driving member (121), the second driving member (121) is configured to drive the third driving member (122) to move along the second direction, the rangefinder (2) is disposed at the output end of the third driving member (122), and the third driving member (122) is configured to drive the rangefinder (2) to move along the second direction.

5. The bogie primary spring clearance measuring device according to claim 3, characterized in that, The moving mechanism (1) further includes a first guide component (13), the first guide component (13) comprising: A first guide rail (131) and a first guide block (132) are connected, the first guide block (132) extends along the third direction, the first guide block (132) is slidably engaged with the first guide rail (131), one of the weighing platform (2000) and the moving component (12) is connected to the first guide rail (131), and the other is connected to the first guide block (132).

6. The bogie primary spring clearance measuring device according to claim 4, characterized in that, The moving component (12) further includes a first mounting plate (171), and the fixed end of the second driving member (121) is fixedly connected to the output end of the first driving member (11) through the first mounting plate (171). The moving mechanism (1) further includes a second guide component (14), which includes: The second guide rail (141) and the second guide block (142) extend along the second direction and are slidably engaged with the second guide rail (141). One of the first mounting plate (171) and the third drive member (122) is connected to the second guide rail (141) and the other is connected to the second guide block (142).

7. The bogie primary spring clearance measuring device according to claim 1, characterized in that, The bogie primary spring clearance measuring device also includes: The terminal module is communicatively connected to the ranging device (2), and the terminal module is able to receive the distance signal.

8. The bogie primary spring clearance measuring device according to claim 1, characterized in that, The moving mechanism (1) further includes: A placement component (15) is disposed at the output end of the moving mechanism (1). The placement component (15) includes a connected accommodating space (153) and a clearance opening. The distance measuring element (2) is housed in the accommodating space (153). The distance measuring element (2) is able to measure the distance to the bogie (1000) along the first direction through the clearance opening.

9. The bogie primary spring clearance measuring device according to claim 8, characterized in that, The moving mechanism (1) further includes a third guide component (16), the third guide component (16) comprising: The guide rod (161) and the guide hole (162) are provided. The guide rod (161) extends along the second direction and passes through the guide hole (162). One of the fixed ends of the placement component (15) and the moving mechanism (1) is connected to the guide rod (161), and the other is provided with the guide hole (162).

10. The bogie primary spring clearance measuring device according to any one of claims 1-9, characterized in that, The bogie primary spring clearance measuring device also includes a protective cover (3), which comprises: The protective cover body (31) is covered by the moving mechanism (1), and the protective cover body (31) has an opening (33) at the top end along the second direction. A top cover (32) is used to seal or open the opening (33).

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