Primary and secondary height measuring device

Abstract

The invention discloses a primary and secondary height measuring device. The primary and secondary height measuring device comprises a base device and an extension scale assembly arranged on the base device, the base device comprises a primary adaptive base part and a secondary adaptive base part, the primary adaptive base part is used for being matched with a primary lower measuring point on the bogie, the thickness of the primary adaptive base part is t1, the secondary adaptive base part is used for being matched with a secondary lower measuring point on the bogie, the thickness of the secondary adaptive base part is t2, and the t2 is t3. The thickness t1 is the difference value of the heights of the primary springs of the two vehicle types, and the thickness t2 is the difference value of the heights of the secondary springs of the two vehicle types. The difference value is eliminated through the thickness of the primary adaptive base part and the thickness of the secondary adaptive base part, so that the primary spring height measurement value and the secondary spring height measurement value of two vehicle types are equal. As the two vehicle types adopt the same measurement value, maintenance personnel can issue a job file and a quality inspection standard for the two vehicle types, and the workload of overhaul operation is reduced.

Description

Technical Field

[0001] The present application relates to the technical field of trains, and more specifically, to a primary and secondary suspension height measuring device. Background Art

[0002] The bogie is an independent running device installed between the vehicle body and the track. It supports the weight of the vehicle body, enables the vehicle to run along the track, and can also guide the vehicle to pass through the curved track smoothly. Each train usually consists of multiple bogies. In order to effectively buffer and absorb various vibrations and impacts from the track, reduce the vibration amplitude of the vehicle body, improve the riding comfort of passengers, and also protect the in-vehicle equipment and goods from excessive vibrations, the bogie is usually provided with a spring suspension device.

[0003] The spring suspension device includes a primary suspension and a secondary suspension. During long-term operation, due to the action of alternating loads, the primary suspension and the secondary suspension may experience problems such as fatigue and deformation, resulting in changes in the spring height of the primary suspension and the secondary suspension. Regularly measuring the primary spring height and the secondary spring height (i.e., the heights of the primary suspension and the secondary suspension) can monitor the state changes of the springs of the primary suspension and the secondary suspension, and timely detect signs of spring damage or aging. When the spring height change exceeds a certain range, it indicates that the spring may have failed and needs to be replaced in a timely manner to ensure the normal function of the suspension system.

[0004] In order to ensure the smoothness and safety of train operation, during the later operation and maintenance of the train, it is necessary to regularly measure the primary spring height and the secondary spring height of the bogie. Both vehicle inspection / monthly inspection require measuring the primary spring height and the secondary spring height, and the measurement workload is relatively large.

[0005] The existing measuring tool is only a simple ruler. When measuring two vehicle models, if the two vehicle models are from different vehicle manufacturers, the values of the primary spring height and the secondary spring height are different at the initial design stage. Therefore, maintenance personnel need to issue two operation documents and quality inspection standards for the two vehicle models, increasing the workload of maintenance and operation.

[0006] Therefore, how to reduce the workload of maintenance and operation is an urgent problem to be solved by those skilled in the art. Summary of the Invention

[0007] In view of this, the purpose of the present application is to provide a primary and secondary suspension height measuring device to reduce the workload of maintenance and operation.

[0008] To achieve the above purpose, the present application provides the following technical solutions: The first aspect of the present application provides a primary and secondary suspension height measuring device, including a base device and a retractable ruler assembly disposed on the base device; The base device includes a first series of adapter base parts and a second series of adapter base parts. The first series of adapter base parts are used to cooperate with the first series of lower measurement points on the bogie, and the thickness of the first series of adapter base parts is t1. The second series of adapter base parts are used to cooperate with the second series of lower measurement points on the bogie, and the thickness of the second series of adapter base parts is t2. The thickness t1 is the difference in the first series of spring heights of two vehicle models, and the thickness t2 is the difference in the second series of spring heights of two vehicle models.

[0009] In a possible implementation, the telescopic ruler assembly includes: A moving ruler mounting seat, which is arranged on the base device; A moving ruler, which is slidably fitted on the moving ruler mounting seat. A scale is arranged on the moving ruler, and the extending direction of the moving ruler is perpendicular to the bottom surfaces of the first series of adapter base parts and the second series of adapter base parts.

[0010] In a possible implementation, the moving ruler mounting seat is slidably fitted on the base device, and the sliding direction of the moving ruler mounting seat is parallel to the bottom surfaces of the first series of adapter base parts and the second series of adapter base parts.

[0011] In a possible implementation, the sliding direction of the moving ruler mounting seat is the arrangement direction of the first series of adapter base parts and the second series of adapter base parts.

[0012] In a possible implementation, a first sliding guide is arranged on the base device, and the first sliding guide extends along the arrangement direction of the first series of adapter base parts and the second series of adapter base parts; A second sliding guide that cooperates with the first sliding guide is arranged on the moving ruler mounting seat.

[0013] In a possible implementation, a sliding seat is arranged at the bottom of the moving ruler mounting seat, a sliding plate is arranged at the top of the base device, and the first sliding guide is arranged on the sliding plate; The sliding seat is clamped to the sliding plate, and the second sliding guides are formed on both sides of the sliding seat.

[0014] In a possible implementation, a ball groove is arranged at the top of the sliding plate. Limiters are arranged at both ends of the sliding seat along the sliding direction. Balls that rollingly cooperate with the sliding seat are arranged in the ball groove, and the balls are limited between the two limiters of the sliding seat.

[0015] In a possible implementation, the moving ruler mounting seat includes a sleeve, and one end of the moving ruler is inserted into the sleeve and is slidably fitted with the sleeve.

[0016] In a possible implementation, a first locking screw hole is formed in the sleeve, and a first locking screw is engaged with the first locking screw hole. The first locking screw is used to abut against the movable scale.

[0017] In a possible implementation, a limiting sliding groove is formed in the movable scale, and the end of the first locking screw extends into the limiting sliding groove.

[0018] In a possible implementation, a rotating scale is rotatably arranged on the movable scale, and the rotation axis of the rotating scale is parallel to the extending direction of the movable scale; The rotating scale is used to lap a series of upper measurement points and a series of lower measurement points.

[0019] In a possible implementation, the rotating scale includes a rotating sleeve and a positioning scale arranged on the rotating sleeve. The rotating sleeve is rotatably sleeved on the movable scale, and the rotating sleeve is provided with a second locking screw hole. The second locking screw hole is engaged with a second locking screw. A ring groove is formed on the movable scale, and the second locking screw extends into the ring groove.

[0020] In a possible implementation, the central angle of the ring groove is 180° - 360°.

[0021] In a possible implementation, the rotating scale is correspondingly arranged at the 0 scale of the movable scale, and the upper edge of the movable scale mounting seat corresponds to the reading scale of the movable scale.

[0022] In a possible implementation, the measurement area of the movable scale for the first series spring height is the first measurement area, the measurement area of the movable scale for the second series spring height is the second measurement area, and the area between the first measurement area and the second measurement area is the third measurement area; The scale accuracy of the first measurement area and the second measurement area is higher than that of the third measurement area.

[0023] In a possible implementation, the scale accuracy of the first measurement area and the second measurement area is the same, and the distance between any two adjacent scale lines is 0.5 mm - 1.5 mm; The distance between any two adjacent scale lines in the third measurement area is 5 mm - 15 mm.

[0024] In a possible implementation, the base device includes a base body, and the first series adaptor base part and the second series adaptor base part are respectively located on both sides of the base body; A magnet is arranged on the base body, and the materials of the first series adaptor base part and the second series adaptor base part are magnetic conductive materials.

[0025] In a possible implementation, a magnetic attraction slot is provided on the base body, and the magnet is detachably arranged in the magnetic attraction slot.

[0026] In a possible implementation, the opening side of the magnetic attraction slot is closed by an end cover of the slot, and the end cover of the slot has a pressing part extending into the magnetic attraction slot.

[0027] The first and second series height measuring device provided by the present application is provided with a base device, and the base device is provided with a first series adaptor base part capable of cooperating with the first series lower measuring point and a second series adaptor base part capable of cooperating with the second series lower measuring point. The thickness of the first series adaptor base part is designed as the difference t1 between the first series spring heights of two vehicle models, and the thickness of the second series adaptor base part is designed as the difference t2 between the second series spring heights of two vehicle models.

[0028] When measuring the first series spring height, the first series adaptor base part can be positioned on the first series lower measuring point, and by adjusting the telescopic ruler assembly, the distance value from the first series adaptor base part to the first series upper measuring point can be obtained. When measuring the second series spring height, the second series adaptor base part can be positioned on the second series lower measuring point, and by adjusting the telescopic ruler assembly, the distance value from the second series adaptor base part to the second series upper measuring point can be obtained. The vehicle model with a larger first series spring height and second series spring height is defined as the first vehicle model, and the vehicle model with a smaller first series spring height and second series spring height is defined as the second vehicle model. The measured value of the first series spring height of the second vehicle model is the sum of the distance value from the first series adaptor base part to the first series upper measuring point and t1; the measured value of the first series spring height of the first vehicle model is the distance value from the first series adaptor base part to the first series upper measuring point. The measured value of the second series spring height of the second vehicle model is the sum of the distance value from the second series adaptor base part to the second series upper measuring point and t2; the measured value of the second series spring height of the first vehicle model is the distance value from the second series adaptor base part to the second series upper measuring point.

[0029] When the first series spring heights and the second series spring heights of two vehicle models are inconsistent, the present application can eliminate the difference through the thicknesses of the first series adaptor base part and the second series adaptor base part, so that the measured values of the first series spring height and the second series spring height of the two vehicle models are equal. Since the purpose of measuring the first series spring height and the second series spring height during vehicle inspection / monthly inspection is to observe the change values of the first series spring height and the second series spring height, making the measured values of the first series spring height and the second series spring height of the two vehicle models consistent will not affect vehicle inspection and monthly inspection. Moreover, since the two vehicle models adopt the same measured values, the maintenance personnel can issue a single operation document and quality inspection standard for the two vehicle models, reducing the workload of maintenance operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] To more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0031] Figure 1 Explosion view of the primary and secondary height measuring device disclosed in the embodiments of the present application; Figure 2 Structural schematic diagram of the primary and secondary height measuring device disclosed in the embodiments of the present application; Figure 3 Front view of the base device disclosed in the embodiments of the present application; Figure 4 Left view of the base device disclosed in the embodiments of the present application; Figure 5 Right view of the base device disclosed in the embodiments of the present application; Figure 6 Top view of the base device disclosed in the embodiments of the present application; Figure 7 Side view of the moving ruler mounting base disclosed in the embodiments of the present application; Figure 8 Top view of the moving ruler mounting base disclosed in the embodiments of the present application; Figure 9 is Figure 7 Cross-sectional view along A-A; Figure 10 Side view of the primary and secondary height measuring device disclosed in the embodiments of the present application; Figure 11 is Figure 10 Cross-sectional view along A-A; Figure 12 Front view of the primary and secondary height measuring device disclosed in the embodiments of the present application; Figure 13 Front view of the moving ruler disclosed in the embodiments of the present application; Figure 14 Structural schematic diagram of the rotating ruler disclosed in the embodiments of the present application; Figure 15 Structural schematic diagram of the groove end cap disclosed in the embodiments of the present application; Figure 16 is Figure 15 Cross-sectional view along line A-A; Figure 17 Structural schematic diagram of the ball groove end cap disclosed in the embodiments of the present application; Figure 18 is Figure 17 Cross-sectional view along line A-A; Figure 19 Structural schematic diagram of the slide cover disclosed in the embodiment of the present application; Figure 20 is Figure 19 Cross-sectional view along line A-A.

[0032] The meanings of the various reference numerals in the figure are as follows: 1 - Base device; 101 - Base main body; 1011 - Magnetic attraction slot; 102 - First series adapter base part; 103 - Second series adapter base part; 1031 - First sliding guide; 1032 - Ball groove; 2 - Moving ruler mounting seat; 201 - Sleeve; 2011 - First locking screw hole; 202 - Slide; 2021 - Second sliding guide; 2022 - Cover groove; 3 - Moving ruler; 301 - Limit sliding groove; 302 - Ring groove; 4 - Rotating ruler; 401 - Positioning ruler; 402 - Rotating sleeve; 4021 - Second locking screw hole; 5 - Groove end cover; 501 - Mounting part hole; 502 - Mounting part; 503 - Extrusion part; 6 - Ball groove end cover; 601 - Ball groove fastening hole; 7 - Slide cover; 701 - Slide fastener hole; 8 - Ball; 9 - Magnet; 10 - Groove fastener; 11 - Cover fastener; 12 - First locking screw; 13 - Second locking screw; 14 - Ball groove fastener. Specific implementation mode

[0033] The core of the present application is to provide a first and second series height measuring device to reduce the workload of maintenance and operation.

[0034] Hereinafter, the embodiments will be described with reference to the drawings. In addition, the embodiments shown below do not limit the application content described in the claims in any way. In addition, all the contents of the configurations shown in the following embodiments are not limited to those necessary for the solution of the application described in the claims. It should be noted that, for the sake of description, only the parts related to the relevant application are shown in the drawings. Without conflict, the embodiments in the present application and the features in the embodiments can be combined with each other.

[0035] Measurement of the primary suspension spring height: The primary suspension spring height refers to the height of the primary suspension spring of the bogie, also known as the four-corner height. During vehicle operation and maintenance, the height of the primary suspension spring is measured to evaluate the service performance, stability, and vehicle dynamics performance of the primary suspension spring. At the same time, the primary suspension spring height also indirectly affects the axle load difference and wheel load difference of the vehicle, thus affecting driving safety. Generally, the primary suspension spring height of the bogie needs to be measured during regular inspections or monthly inspections. The measurement of the primary suspension spring height is generally the vertical distance between the lower measurement point of the primary suspension (usually on the axle box) and the upper measurement point of the primary suspension (usually on the bucket of the frame). Generally, 8 points need to be measured for one vehicle, and 48 data need to be measured and recorded for a 6-car formation train.

[0036] Measurement of the secondary suspension spring height: The secondary suspension spring height refers to the height of the secondary suspension spring (or air spring) of the bogie. During vehicle operation and maintenance, the height of the secondary suspension spring is measured to evaluate whether the floor height is qualified and whether the vehicle dynamics performance is optimal. At the same time, the secondary suspension spring height also indirectly affects the axle load difference and wheel load difference of the vehicle, thus affecting driving safety. Generally, the secondary suspension spring height of the bogie needs to be measured during regular inspections or monthly inspections. The measurement of the secondary suspension spring height is generally the vertical distance between the lower measurement point of the secondary suspension (usually on the frame) and the upper measurement point of the secondary suspension (usually on the car body underframe). Generally, 4 points need to be measured for one vehicle, and 24 data need to be measured and recorded for a 6-car formation train.

[0037] During both regular inspections and monthly inspections, the primary suspension spring height and the secondary suspension spring height of the vehicle need to be measured, resulting in a large measurement workload. When using the current measurement tools to measure two vehicle models, if the two vehicle models come from different vehicle manufacturers, the values of the primary suspension spring height and the secondary suspension spring height are different at the initial design stage. Therefore, maintenance personnel need to issue two operation documents and quality inspection standards for the two vehicle models, increasing the workload of maintenance and operation.

[0038] As Figure 1 and Figure 2 shown, a primary and secondary suspension height measuring device disclosed in an embodiment of the present application can measure both the primary suspension spring height and the secondary suspension spring height. The primary and secondary suspension height measuring device includes a base device 1 and a telescopic ruler assembly disposed on the base device 1. The telescopic ruler assembly is telescopic to adjust the height to meet the measurement requirements of the primary suspension spring height and the secondary suspension spring height.

[0039] As Figures 3 - 6 shown, in this embodiment, the base device 1 includes a primary suspension adapter base portion 102 and a secondary suspension adapter base portion 103. The primary suspension adapter base portion 102 is used to cooperate with the lower measurement point of the primary suspension on the bogie. The structure of the lower measurement point of the primary suspension is a groove structure with an upward opening, and the structure of the primary suspension adapter base portion 102 can be designed to match the structure of the lower measurement point of the primary suspension to facilitate the cooperation between the primary suspension adapter base portion 102 and the lower measurement point of the primary suspension.

[0040] The thickness of the first-stage adaptation base part 102 is t1, and the thickness t1 is the difference in the first-stage spring heights of two vehicle models. The first-stage and second-stage height measuring device disclosed in this embodiment can be used for measuring two vehicle models, and the first-stage spring heights and second-stage spring heights of the two vehicle models are different. The first-stage and second-stage height measuring device disclosed in this embodiment can, during measurement, make the different first-stage spring heights of the two vehicle models obtain the same numerical value of the first-stage spring height measurement.

[0041] The second-stage adaptation base part 103 is used to cooperate with the second-stage lower measurement point on the bogie. The upper surface of the second-stage lower measurement point is a plane, and the lower surface of the second-stage adaptation base part 103 can be designed as a plane structure matching the second-stage lower measurement point to facilitate the cooperation between the second-stage adaptation base part 103 and the second-stage lower measurement point.

[0042] The thickness of the second-stage adaptation base part 103 is t2, and the thickness t2 is the difference in the second-stage spring heights of two vehicle models. The first-stage and second-stage height measuring device disclosed in this embodiment can, during measurement, make the different second-stage spring heights of the two vehicle models obtain the same numerical value of the second-stage spring height measurement.

[0043] The first-stage and second-stage height measuring device disclosed in the embodiment of the present application is provided with a base device 1, and on the base device 1, there are provided a first-stage adaptation base part 102 capable of cooperating with the first-stage lower measurement point and a second-stage adaptation base part 103 capable of cooperating with the second-stage lower measurement point. The thickness of the first-stage adaptation base part 102 is designed as the difference t1 in the first-stage spring heights of two vehicle models, and the thickness of the second-stage adaptation base part 103 is designed as the difference t2 in the second-stage spring heights of two vehicle models.

[0044] During the measurement of the first-stage spring height, the first-stage adaptation base part 102 can be positioned on the first-stage lower measurement point, and by adjusting the telescopic ruler assembly, the distance value from the first-stage adaptation base part 102 to the first-stage upper measurement point can be obtained. During the measurement of the second-stage spring height, the second-stage adaptation base part 103 can be positioned on the second-stage lower measurement point, and by adjusting the telescopic ruler assembly, the distance value from the second-stage adaptation base part 103 to the second-stage upper measurement point can be obtained.

[0045] For the convenience of understanding, the vehicle model with a larger first-stage spring height and second-stage spring height is defined as the first vehicle model, and the vehicle model with a smaller first-stage spring height and second-stage spring height is defined as the second vehicle model. The measurement value of the first-stage spring height of the second vehicle model is the sum of the distance value from the first-stage adaptation base part 102 to the first-stage upper measurement point and t1; the measurement value of the first-stage spring height of the first vehicle model is the distance value from the first-stage adaptation base part 102 to the first-stage upper measurement point, that is, the measurement value of the first-stage spring height of the first vehicle model does not add t1. Since the first-stage spring height of the first vehicle model is greater than that of the second vehicle model, the distance value from the first-stage adaptation base part 102 to the first-stage upper measurement point of the first vehicle model is greater than the distance value from the first-stage adaptation base part 102 to the first-stage upper measurement point of the second vehicle model, and the difference between the two is t1, which makes the measurement values of the first-stage spring heights of the second vehicle model and the first vehicle model equal.

[0046] The measurement value of the secondary suspension spring height of the second vehicle model is the sum of the distance value from the secondary suspension adapter base part 103 to the upper secondary suspension measurement point and t2; the measurement value of the secondary suspension spring height of the first vehicle model is the distance value from the secondary suspension adapter base part 103 to the upper secondary suspension measurement point, that is, t2 is not added to the measurement value of the secondary suspension spring height of the first vehicle model. Since the secondary suspension spring height of the first vehicle model is greater than that of the second vehicle model, the distance value from the secondary suspension adapter base part 103 to the upper secondary suspension measurement point of the first vehicle model is greater than the distance value from the secondary suspension adapter base part 103 to the upper secondary suspension measurement point of the second vehicle model, and the difference between the two is t2, which makes the measurement values of the secondary suspension spring height of the second vehicle model and the first vehicle model equal.

[0047] When the primary suspension spring height and the secondary suspension spring height of two vehicle models are inconsistent in this application, the difference can be eliminated by the thickness of the primary suspension adapter base part 102 and the secondary suspension adapter base part 103, so that the measurement values of the primary suspension spring height and the secondary suspension spring height of the two vehicle models are equal, eliminating the data recording difference caused by the different primary suspension spring heights and secondary suspension spring heights of the two vehicle models. Since the purpose of measuring the primary suspension spring height and the secondary suspension spring height during vehicle inspection / monthly inspection is to observe the change values of the primary suspension spring height and the secondary suspension spring height, making the measurement values of the primary suspension spring height and the secondary suspension spring height of the two vehicle models consistent will not affect vehicle inspection and monthly inspection. Moreover, since the two vehicle models use the same measurement value, the maintenance personnel can issue a single operation document and quality inspection standard for the two vehicle models, reducing the workload of maintenance and operation.

[0048] As Figure 2 shown, in this embodiment, the telescopic ruler assembly includes a movable ruler mounting base 2 and a movable ruler 3. Among them, the movable ruler mounting base 2 is arranged on the base device 1, and the movable ruler 3 is slidably matched with the movable ruler mounting base 2. A scale is arranged on the movable ruler 3. The extending direction of the movable ruler 3 is perpendicular to the bottom surfaces of the primary suspension adapter base part 102 and the secondary suspension adapter base part 103, and the sliding direction of the movable ruler 3 is parallel to the extending direction of the movable ruler 3.

[0049] The bottom surface of the primary suspension adapter base part 102 is attached to the surface of the lower primary suspension measurement point, and the bottom surface of the secondary suspension adapter base part 103 is attached to the surface of the lower secondary suspension measurement point. Therefore, the extending direction of the movable ruler 3 is perpendicular to the surfaces of the lower primary suspension measurement point and the lower secondary suspension measurement point. Thus, when the movable ruler 3 is slid, the height of the scale on the movable ruler 3 can be changed, thereby adjusting the measurement range.

[0050] Furthermore, the moving ruler mounting base 2 can be fixed to the base device 1 or slidably engaged with the base device 1. When the moving ruler mounting base 2 is slidably engaged with the base device 1, the sliding direction of the moving ruler mounting base 2 is parallel to the bottom surfaces of the first series of adapted base portions 102 and the second series of adapted base portions 103. In this embodiment, the sliding direction of the moving ruler mounting base 2 is the arrangement direction of the first series of adapted base portions 102 and the second series of adapted base portions 103, and of course, it can also be other directions. By sliding the moving ruler mounting base 2, the positional relationship between the moving ruler 3 and the upper measurement points (the first series of upper measurement points and the second series of upper measurement points) can be adjusted, so that by adjusting the moving ruler mounting base 2, the moving ruler 3 can be made closer to the upper measurement points (the first series of upper measurement points and the second series of upper measurement points) to facilitate reading the measurement values.

[0051] When measuring the first series of spring heights and the second series of spring heights, by sliding the moving ruler mounting base 2, the function of quickly aligning the entire first and second series height measuring device with the first series of upper measurement points and the second series of upper measurement points can be conveniently achieved by changing the displacement in the vehicle width direction. The moving ruler 3 can move up and down within a certain range of the moving ruler mounting base 2. During measurement, the convenience of the entire first and second series height measuring device during operation in a small space inside the vehicle can be achieved by changing the displacement in the vehicle height direction.

[0052] As Figure 3 、 Figure 7 、 Figure 10 and Figure 11 As shown in, a first sliding guide 1031 is provided on the base device 1, and the first sliding guide 1031 extends along the arrangement direction of the first series of adapted base portions 102 and the second series of adapted base portions 103. A second sliding guide 2021 that cooperates with the first sliding guide 1031 is provided on the moving ruler mounting base 2. In this embodiment, through the cooperation between the second sliding guide 2021 and the first sliding guide 1031, the sliding direction of the moving ruler mounting base 2 can be defined.

[0053] Specifically, the first sliding guide 1031 can be a guide chute opened on both sides of the base device 1, and the second sliding guide 2021 can be a slide rail provided on the moving ruler mounting base 2. Of course, the first sliding guide 1031 can also be a slide rail, and the second sliding guide 2021 is a guide chute. The slide rail extends into the guide chute and slides along the guide chute. Through the cooperation between the slide rail and the guide chute, in addition to being able to define the sliding direction of the moving ruler mounting base 2, it can also prevent the moving ruler mounting base 2 from moving in other directions.

[0054] As Figure 7As shown in the figure, a sliding seat 202 is provided at the bottom of the moving ruler mounting base 2. The top of the base device 1 has a sliding plate, and the first sliding guide member 1031 is arranged on the sliding plate. The sliding seat 202 has a holding groove structure with a downward opening, so that the sliding seat 202 holds the sliding plate to improve the sliding stability of the moving ruler mounting base 2. Second sliding guide members 2021 are formed on both sides of the sliding seat 202, that is, the side walls of the sliding seat 202, and the second sliding guide members 2021 are formed by inward contraction at the opening end of the holding groove. When installing the moving ruler mounting base 2, it can be slid in from one end of the base device 1. In the direction perpendicular to the base device 1, the first sliding guide member 1031 has a limiting effect on the second sliding guide member 2021, which can prevent the moving ruler mounting base 2 from detaching from the base device 1, so that the moving ruler mounting base 2 can only detach from the end of the base device 1.

[0055] To improve the smoothness of the sliding of the moving ruler mounting base 2 and reduce the frictional resistance. As Figure 6 and Figure 11 shown, in this embodiment, a ball groove 1032 is provided at the top of the sliding plate. Limiting members are arranged at both ends of the sliding seat 202 along the sliding direction. Balls 8 that are in rolling fit with the sliding seat 202 are arranged in the ball groove 1032, and the number of balls 8 can be set to multiple according to the need. Each ball 8 is limited between the two limiting members of the sliding seat 202, so that when the moving ruler mounting base 2 slides, each ball 8 can move along with the moving ruler mounting base 2.

[0056] The first end of the ball groove 1032 extends to one end of the base device 1 to facilitate the opening of the ball groove 1032, and the second end of the ball groove 1032 does not penetrate the end of the base device 1 to limit the sliding range of the balls 8 and prevent the balls 8 from sliding out of the base device 1. The first end of the ball groove 1032 can be blocked by a ball groove end cover 6, and the ball groove end cover 6 is fastened to the base device 1 by a ball groove fastener 14.

[0057] As Figure 17 and Figure 18 shown, the ball groove end cover 6 has protrusions at positions corresponding to the two ball grooves 1032, and the protrusions can block the first end of the ball groove 1032. A ball groove fastening hole 601 for the ball groove fastener 14 to pass through is provided on the ball groove end cover 6.

[0058] The limiting member at one end of the sliding seat 202 can be designed as an integral structure with the sliding seat 202, and the limiting member at the other end needs to be designed as a detachable structure. For example, a sliding seat cover 7 can be added as the limiting member at this end so that the balls 8 can be placed into the sliding seat 202. A cover groove 2022 is opened at the position where the sliding seat cover 7 needs to be installed (as Figure 9 shown). As Figure 1As shown, when installing the ball bearings 8, first, the carriage cover 7 needs to be disassembled. Then, each ball bearing 8 is sequentially placed into the ball bearing groove 1032 and located on the lower side of the carriage 202, such that one side of each ball bearing 8 is limited by the limiting member. Next, the carriage cover 7 is installed at the cover groove 2022 and fixed to the carriage 202 by the cover fastener 11 to limit the other side of the ball bearings 8 through the carriage cover 7.

[0059] As Figure 19 and Figure 20 shown, the carriage cover 7 is provided with a carriage fastener hole 701. After the cover fastener 11 passes through the carriage fastener hole 701, it is fastened to the carriage 202.

[0060] In a specific embodiment of the present application, the moving ruler mounting base 2 may include a sleeve 201. One end of the moving ruler 3 is inserted into the sleeve 201 and is slidably engaged with the sleeve 201. The extending direction of the sleeve 201 is the same as that of the moving ruler 3. The sleeve 201 can be a cylindrical sleeve or a prismatic sleeve. Similarly, the moving ruler 3 can be a cylindrical structure or a prismatic structure.

[0061] As Figure 1 and Figure 7 shown, the sleeve 201 is provided with a first locking screw hole 2011, and a first locking screw 12 is engaged with the first locking screw hole 2011. The first locking screw 12 is used to press against the moving ruler 3. After loosening the first locking screw 12, the locking effect of the first locking screw 12 on the moving ruler 3 can be released, and the moving ruler 3 can be telescoped along the sleeve 201 according to requirements. After telescoping to the appropriate length, the first locking screw 12 can be locked so that the end of the first locking screw 12 presses against the moving ruler 3 to limit the sliding of the moving ruler 3.

[0062] As Figure 13 shown, the moving ruler 3 is provided with a limiting sliding groove 301, and the end of the first locking screw 12 extends into the limiting sliding groove 301. The limiting sliding groove 301 can cooperate with the first locking screw 12 to limit the rotation of the moving ruler 3 along the sleeve 201. When it is necessary to lock the moving ruler 3, only by rotating the first locking screw 12, the end of the first locking screw 12 can be made to extend into the limiting sliding groove 301 and press against the bottom wall of the limiting sliding groove 301.

[0063] The extending direction of the limiting sliding groove 301 can be parallel to the extending direction of the moving ruler 3 or can be designed in other directions. This embodiment does not limit the extending direction of the limiting sliding groove 301, as long as it is not perpendicular to the extending direction of the moving ruler 3.

[0064] As Figure 1As shown in the figure, in a specific embodiment of the present application, a rotating ruler 4 is rotatably arranged on the moving ruler 3, and the rotation axis of the rotating ruler 4 is parallel to the extension direction of the moving ruler 3. The rotating ruler 4 is used to overlap a first-series measurement point and a second-series measurement point. The rotating ruler 4 can rotate to avoid components that can interfere with the first-series and second-series height measurement devices, or the rotating ruler 4 can be rotated so that the rotating ruler 4 can overlap on the first-series measurement point and the second-series measurement point.

[0065] As Figure 13 and Figure 14 shown in the figure, the rotating ruler 4 includes a rotating sleeve 402 and a positioning ruler 401 arranged on the rotating sleeve 402. The rotating sleeve 402 is rotatably sleeved on the moving ruler 3, and by rotating the moving ruler 3, the moving ruler 3 can be overlapped on the first-series measurement point and the second-series measurement point.

[0066] Please refer to Figure 1 shown in the figure, the rotating sleeve 402 is provided with a second locking screw hole 4021, and a second locking screw 13 is fitted in the second locking screw hole 4021. A ring groove 302 is arranged on the moving ruler 3, and the second locking screw 13 extends into the ring groove 302. The central angle of the ring groove 302 can be 180° - 360°, such as 270°. Of course, the central angle of the ring groove 302 can also be designed as other angles, not limited to the above angle range. When it is necessary to rotate the rotating ruler 4 to adjust the position of the positioning ruler 401, the second locking screw 13 can be loosened, and then the rotating ruler 4 is rotated so that the rotating sleeve 402 rotates around the moving ruler 3. When it is rotated to a suitable angle, the second locking screw 13 is locked. The rotating ruler 4 can rotate within the angular range of the ring groove 302 of the moving ruler 3, which is convenient for quickly aligning with the first-series measurement point and the second-series measurement point by rotation during measurement.

[0067] Furthermore, the rotating ruler 4 is correspondingly arranged at the 0 scale of the moving ruler 3, and the upper edge of the moving ruler mounting base 2 corresponds to the reading scale of the moving ruler 3. That is, the reading scale value of the moving ruler 3 is the distance from the rotating ruler 4 to the upper edge of the moving ruler mounting base 2. When the height value of the moving ruler mounting base 2 is t3, the distance value from the first-series adapter base part 102 to the first-series measurement point is the sum of the reading scale value of the moving ruler 3 and t3; correspondingly, the distance value from the second-series adapter base part 103 to the second-series measurement point is also the sum of the reading scale value of the moving ruler 3 and t3.

[0068] Furthermore, since there is a large difference between the first-series spring height and the second-series spring height of the vehicle, when measuring the measurement values of the first-series spring height and the second-series spring height, the moving ruler 3 needs to be extended and retracted to different heights. As Figure 13 shown in the figure, in this embodiment, the measurement area of the moving ruler 3 for the first-series spring height is the first measurement area, the measurement area of the moving ruler 3 for the second-series spring height is the second measurement area, and the area between the first measurement area and the second measurement area is the third measurement area.

[0069] It should be noted that the scale value corresponding to the rotating ruler 4 set on the moving ruler 3 can also be t3. That is, t3 is used as the starting scale of the moving ruler 3. Then, the upper edge of the moving ruler mounting base 2 corresponds to the reading scale of the moving ruler 3, which is the distance from the positioning ruler 401 to the upper surfaces of the first-series adapter base part 102 and the second-series adapter base part 103, that is, the distance value from the first-series adapter base part 102 to the first-series upper measurement point / the distance value from the second-series adapter base part 103 to the second-series upper measurement point.

[0070] The scale accuracy of the first measurement area and the second measurement area is higher than that of the third measurement area. The scale accuracy refers to the distance between two adjacent scale lines. The smaller the distance, the higher the accuracy. For example, the scale accuracies of the first measurement area and the second measurement area can be the same, and the distance between any two adjacent scale lines is 0.5 mm to 1.5 mm; the distance between any two adjacent scale lines in the third measurement area is 5 mm to 15 mm. Exemplarily, the scale accuracy of the first measurement area and the second measurement area can be 1 mm, and the scale accuracy of the third measurement area can be 10 mm, so as to facilitate quick positioning to the first measurement area and the second measurement area, and at the same time ensure the reading accuracy of the first measurement area and the second measurement area.

[0071] As Figure 1 shown, in a specific embodiment of the present application, the base device 1 may include a base body 101, and the first-series adapter base part 102 and the second-series adapter base part 103 are respectively located on both sides of the base body 101. A magnet 9 is provided on the base body 101, and the materials of the first-series adapter base part 102 and the second-series adapter base part 103 are magnetic conductive materials. When the magnet 9 is provided on the base body 101, the first-series adapter base part 102 and the second-series adapter base part 103 will have a magnetic attraction function. When using this first-and-second series height measuring device to measure the first-series spring height, the first-series adapter base part 102 can be positioned on the first-series lower measurement point. Since the first-series lower measurement point is made of steel material, the first-series adapter base part 102 with the magnetic attraction function can be magnetically attracted to the first-series lower measurement point, improving the reliability and stability of the fixation of the first-and-second series height measuring device on the first-series lower measurement point, and then improving the accuracy of the first-series spring height measurement.

[0072] Marks for applicable vehicle models can be marked on the base device 1. For example Figure 1 the line information shown, such as the number "6", indicates that this first-and-second series height measuring device is used for the vehicle model of Line 6 in a certain city. Of course, the above marks can also be marked as others, and those skilled in the art can choose according to requirements.

[0073] Similarly, when using this primary-secondary suspension height measuring device to measure the secondary suspension spring height, the secondary suspension adapter base portion 103 can be positioned at the secondary suspension lower measurement point. Since the secondary suspension lower measurement point is made of steel material, the secondary suspension adapter base portion 103 with a magnetic attraction function can be magnetically attracted to the secondary suspension lower measurement point, improving the reliability and stability of the fixation of the primary-secondary suspension height measuring device at the secondary suspension lower measurement point, and then improving the accuracy of the secondary suspension spring height measurement.

[0074] As Figure 5 shown, in order to facilitate the installation of the magnet 9 on the base body 101, in this embodiment, a magnetic attraction groove 1011 is provided on the base body 101, and the magnet 9 is detachably arranged in the magnetic attraction groove 1011. One end of the magnetic attraction groove 1011 is provided with an opening, and the magnet 9 can be inserted into the magnetic attraction groove 1011 through the opening of the magnetic attraction groove 1011, or can be pulled out of the magnetic attraction groove 1011 through the opening of the magnetic attraction groove 1011.

[0075] The opening side of the magnetic attraction groove 1011 can be closed by an insert groove end cover 5, and the insert groove end cover 5 can be fixed on the base body 101 through an insert groove fastener 10. As Figure 15 and Figure 16 shown, the insert groove end cover 5 has a pressing portion 503 extending into the magnetic attraction groove 1011. The insert groove end cover 5 has a flange structure and has an installation portion 502, and the installation portion 502 has a plurality of installation portion holes 501. When installing the insert groove end cover 5, the installation portion 502 corresponds to the solid part at the edge of the magnetic attraction groove 1011, and the insert groove fastener 10 passes through the installation portion hole 501 and is tightened on the base body 101. By rotating the insert groove fastener 10, a pressing force can be output, so that the pressing portion 503 is inserted into the magnetic attraction groove 1011 and presses the magnet 9 to prevent the magnet 9 from shaking in the magnetic attraction groove 1011.

[0076] The first locking screw hole 2011, the second locking screw hole 4021, the installation portion hole 501, the ball groove fastening hole 601, and the slide base fastener hole 701 disclosed in the above respective embodiments are all counterbore holes, which are convenient for the installation of corresponding fasteners and do not affect the measurement.

[0077] The primary-secondary suspension height measuring device disclosed in the embodiment of the present application, its primary suspension adapter base portion 102 and secondary suspension adapter base portion 103 can be adapted to the primary suspension lower measurement point and the secondary suspension lower measurement point on the bogie frame, and are stably adsorbed under the action of the magnet 9. By moving the moving ruler mounting seat 2 left and right, moving the moving ruler 3 up and down, and rotating the rotating ruler 4, it can measure the primary suspension spring height of the bogie in the narrow space under the vehicle and can also measure the secondary suspension spring height at the same time. When the primary suspension spring height and the secondary suspension spring height of the additional purchased vehicle and the existing vehicle (two different vehicle models) are inconsistent, the present application can also eliminate the difference through the primary suspension adapter base portion 102 and the secondary suspension adapter base portion 103.

[0078] As shown in this application and the claims, unless the context clearly indicates otherwise, words such as "a", "an", "one", and / or "the" are not specifically singular and may also include the plural. Generally speaking, the terms "comprising" and "including" only indicate the inclusion of the steps and elements that have been clearly identified, and these steps and elements do not constitute an exclusive list. A method or device may also include other steps or elements. An element defined by the statement "comprising one..." does not exclude the existence of additional identical elements in the process, method, product, or device that includes the element.

[0079] In the description of this application, unless otherwise clearly defined, words such as "set", "installed", "connected", etc. should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above words in this application in combination with the specific content of the technical solution.

[0080] In this specification, the various embodiments are described in a progressive manner. Each embodiment focuses on the differences from other embodiments, and the same or similar parts between the embodiments can be referred to each other.

[0081] Specific examples are used herein to illustrate the principles and implementation manners of this application. The description of the above embodiments is only used to help understand the method and its core idea of this application. It should be noted that for those of ordinary skill in the art in this technical field, without departing from the principle of this application, several improvements and modifications can be made to this application, and these improvements and modifications also fall within the protection scope of the claims of this application.

Claims

1. A primary-secondary suspension height measuring device, characterized in that, It includes a base device (1) and a telescopic ruler assembly disposed on the base device (1). The base device (1) includes a first-series adaptor base portion (102) and a second-series adaptor base portion (103). The first-series adaptor base portion (102) is used to cooperate with the first-series lower measurement point on the bogie, and the thickness of the first-series adaptor base portion (102) is t1. The second-series adaptor base portion (103) is used to cooperate with the second-series lower measurement point on the bogie, and the thickness of the second-series adaptor base portion (103) is t2. The thickness t1 is the difference in the first-series spring heights of two vehicle models, and the thickness t2 is the difference in the second-series spring heights of two vehicle models.

2. The first and second series height measuring device according to claim 1, characterized in that, The telescopic ruler assembly includes:[[]]END A movable ruler mounting seat (2) disposed on the base device (1). A movable ruler (3) slidably fitted on the movable ruler mounting seat (2). A scale is provided on the movable ruler (3), and the extending direction of the movable ruler (3) is perpendicular to the bottom surfaces of the first-series adaptor base portion (102) and the second-series adaptor base portion (103).

3. The primary-secondary height measuring device according to claim 2, characterized in that, The movable ruler mounting seat (2) is slidably fitted on the base device (1), and the sliding direction of the movable ruler mounting seat (2) is parallel to the bottom surfaces of the first-series adaptor base portion (102) and the second-series adaptor base portion (103).

4. The primary-secondary suspension height measuring device according to claim 3, wherein The sliding direction of the movable ruler mounting seat (2) is the arranging direction of the first-series adaptor base portion (102) and the second-series adaptor base portion (103).

5. The first and second system height measuring device according to claim 3, characterized in that, A first sliding guide (1031) is provided on the base device (1), and the first sliding guide (1031) extends along the arranging direction of the first-series adaptor base portion (102) and the second-series adaptor base portion (103). A second sliding guide (2021) cooperating with the first sliding guide (1031) is provided on the movable ruler mounting seat (2).

6. The first and second series height measuring device according to claim 5, characterized in that, A sliding seat (202) is provided at the bottom of the movable ruler mounting seat (2). The top of the base device (1) has a sliding plate, and the first sliding guide (1031) is provided on the sliding plate. The sliding seat (202) hugs the sliding plate, and the second sliding guides (2021) are formed on both sides of the sliding seat (202).

7. The primary-secondary height measuring device according to claim 6, wherein A ball groove (1032) is provided on the top of the sliding plate. Limit members are provided at both ends of the sliding seat (202) along the sliding direction. Balls (8) that are in rolling fit with the sliding seat (202) are provided in the ball groove (1032), and the balls (8) are limited between the two limit members of the sliding seat (202).

8. The first and second series height measuring device according to claim 2, characterized in that, The movable ruler mounting seat (2) includes a sleeve (201). One end of the movable ruler (3) is inserted into the sleeve (201) and is slidably fitted with the sleeve (201).

9. The first and second series height measuring device according to claim 8, characterized in that, A first locking screw hole (2011) is provided on the sleeve (201), and a first locking screw (12) is fitted in the first locking screw hole (2011). The first locking screw (12) is used to press against the movable ruler (3).

10. The primary-secondary height measuring device according to claim 9, wherein, A limiting sliding groove (301) is formed in the movable ruler (3), and the end of the first locking screw (12) extends into the limiting sliding groove (301).

11. The primary-secondary height measuring device according to claim 2, wherein A rotating ruler (4) is rotatably arranged on the movable ruler (3), and the rotation axis of the rotating ruler (4) is parallel to the extension direction of the movable ruler (3); The rotating ruler (4) is used to lap a first series of measurement points and a second series of measurement points.

12. The primary-secondary height measuring device according to claim 11, wherein, The rotating ruler (4) includes a rotating sleeve (402) and a positioning ruler (401) arranged on the rotating sleeve (402). The rotating sleeve (402) is rotatably sleeved on the movable ruler (3), and a second locking screw hole (4021) is formed in the rotating sleeve (402). The second locking screw hole (4021) is matched with a second locking screw (13). A ring groove (302) is arranged on the movable ruler (3), and the second locking screw (13) extends into the ring groove (302).

13. The first and second stage height measuring device according to claim 12, wherein The central angle of the ring groove (302) is 180° - 360°.

14. The primary-secondary height measuring device according to claim 11, wherein, The rotating ruler (4) is correspondingly arranged at the 0 scale of the movable ruler (3), and the upper edge of the movable ruler mounting seat (2) corresponds to the reading scale of the movable ruler (3).

15. The first and second stage height measuring device according to claim 14, characterized in that, The measurement area of the movable ruler (3) for the first series of spring heights is the first measurement area, the measurement area of the movable ruler (3) for the second series of spring heights is the second measurement area, and the area between the first measurement area and the second measurement area is the third measurement area; The scale accuracy of the first measurement area and the second measurement area is higher than that of the third measurement area.

16. The first and second system height measuring device according to claim 15, wherein The scale accuracy of the first measurement area and the second measurement area is the same, and the distance between any two adjacent scale lines is 0.5 mm - 1.5 mm; The distance between any two adjacent scale lines in the third measurement area is 5 mm - 15 mm.

17. The primary-secondary height measuring device according to any one of claims 1-16, characterized in that, The base device (1) includes a base main body (101), and the first series adapter base part (102) and the second series adapter base part (103) are respectively located on both sides of the base main body (101); A magnet (9) is arranged on the base main body (101), and the materials of the first series adapter base part (102) and the second series adapter base part (103) are magnetic conductive materials.

18. The one-two system height measuring device according to claim 17, characterized in that, A magnetic suction embedding groove (1011) is arranged on the base main body (101), and the magnet (9) is detachably arranged in the magnetic suction embedding groove (1011).

19. The primary-secondary height measuring device according to claim 18, characterized in that, The opening side of the magnetic suction embedding groove (1011) is closed by an embedding groove end cover (5), and the embedding groove end cover (5) has an extrusion part (503) extending into the magnetic suction embedding groove (1011).

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