Railway track mileage measuring device and railway track maintenance equipment

Abstract

The utility model discloses a railway track mileage measuring device and railway track maintenance equipment, and relates to the technical field of railway track detection. In the device, the walking wheel can advance on the upper surface of the track, and the encoder can record the advancing distance of the walking wheel. The movable support comprises a fixed part and a movable part which are connected through a rotating pin, and the movable part can rotate around the rotating pin. The spring assembly comprises a spring shaft and a compression spring arranged on the outer side of the spring shaft in a sleeving mode, the spring shaft penetrates through the fixing piece, the shaft top end and the shaft bottom end are arranged on the two sides of the fixing piece respectively, the shaft bottom end is further fixedly connected with the movable piece, and then the walking wheel is pressed through the movable piece, so that the walking wheel is tightly attached to the upper surface of the track. Through the design of the spring assembly and the movable support, when the railway track fluctuates, it can be guaranteed that the walking wheels are tightly attached to the railway track, and the precision, accuracy and efficiency of railway track mileage measurement are improved.

Description

Technical Field

[0001] The present invention relates to the field of railway track detection technology, and in particular to a railway track mileage measuring device and railway track maintenance equipment. Background Art

[0002] Normally, during railway maintenance, it is necessary to measure the length of railway tracks.

[0003] In the prior art, the mileage of railway tracks is often measured by using an odometer wheel equipped with an encoder.

[0004] However, in order to adapt to changes in terrain during the laying process, railway tracks are often uneven. The uneven railway tracks often have a great impact on the odometer wheels used to measure the railway tracks, resulting in low measurement accuracy, low precision and low efficiency. Summary of the invention

[0005] The present specification provides a railway track mileage measuring device and railway track maintenance equipment to partially solve the above-mentioned problems existing in the prior art.

[0006] This manual adopts the following technical solutions:

[0007] This specification provides a railway track mileage measuring device, comprising:

[0008] 1. A railway track mileage measuring device, comprising:

[0009] A movable bracket, comprising a fixed part and a movable part, wherein the fixed part and the movable part are connected via a rotating pin, and the movable part can rotate around the rotating pin;

[0010] A traveling wheel, fixedly connected to the movable member and capable of traveling along the track;

[0011] The spring assembly comprises a spring shaft and a compression spring sleeved on the outside of the spring shaft; the spring shaft passes through the fixing member, the bottom end and the top end of the shaft are respectively arranged on both sides of the fixing member, and the bottom end of the shaft is fixedly connected to the movable member; the compression spring can press the walking wheel to be in close contact with the upper surface of the track through the bottom end of the shaft and the movable member;

[0012] An encoder is fixedly connected to the walking wheel and is used to record the distance traveled by the walking wheel.

[0013] Preferably, the fixing member is provided with a through hole, and the opening size of the through hole is smaller than the size of the top end of the shaft and larger than the size of the shaft body of the spring shaft, so as to prevent the top end of the shaft from passing through and allow the shaft body to pass through;

[0014] When the movable part rotates around the rotating pin, the spring assembly can be driven to move through the bottom end of the shaft, so that the shaft body and the fixed part move relative to each other.

[0015] Preferably, the top end of the compression spring abuts against the fixing member, and the bottom end abuts against the bottom end of the shaft, and is in a compressed state.

[0016] Preferably, the fixing member includes a load-bearing platform and a lower swing arm;

[0017] A through hole is provided on the surface of the carrying platform, the top end of the shaft is higher than the upper surface of the carrying platform, and the bottom end of the shaft is lower than the upper surface of the carrying platform; the carrying platform is used to carry articles;

[0018] The lower swing arm is fixedly connected to the bearing platform, and the lower swing arm is connected to the movable part through the rotating pin.

[0019] Preferably, the mass of the load-bearing platform and / or the items carried by the load-bearing platform is greater than a preset mass threshold, which can squeeze the compression spring so that part of the structure of the shaft body of the spring shaft passes through the load-bearing platform and is exposed to the outside of the upper surface of the load-bearing platform, and the compression spring squeezes the bottom end of the shaft, and through the bottom end of the shaft and the movable part, presses the walking wheel to fit tightly against the upper surface of the track.

[0020] Preferably, the device further comprises a locking pin;

[0021] The fixing piece is also provided with a locking hole, and the size of the locking hole is adapted to the locking pin;

[0022] The movable part is also provided with a matching hole, and the size of the matching hole is adapted to the locking pin; the opening positions of the matching hole and the locking hole are adapted, so that when the movable part rotates around the rotating pin, it can rotate until the matching hole and the locking hole overlap;

[0023] The locking pin is used to be embedded in the matching hole and the locking hole when the matching hole and the locking hole coincide with each other, so as to fix the fixing part and the movable part so that the movable part cannot rotate around the rotating pin.

[0024] Preferably, when the matching hole coincides with the locking hole, a portion of the structure of the shaft body of the spring shaft passes through the fixing member and is exposed at the other side of the fixing member.

[0025] Preferably, the side of the running wheel in contact with the railway track is made of frosted material, the friction coefficient is greater than a preset value, and the side of the running wheel in contact with the railway track is concave, which is adapted to the shape of the railway track, so that the running wheel does not deviate when traveling on the railway track.

[0026] On the other hand, the present specification also provides a railway track maintenance equipment, including the railway track mileage measuring device provided by any one of the above items.

[0027] Preferably, the railway track maintenance equipment is equipped with a plurality of load-bearing wheels and at least one railway track mileage measuring device;

[0028] The fixing piece is also provided with a locking hole, and the size of the locking hole is adapted to the locking pin;

[0029] The movable part is also provided with a matching hole, and the size of the matching hole is adapted to the locking pin; the opening positions of the matching hole and the locking hole are adapted, so that when the movable part rotates around the rotating pin, it can rotate until the matching hole and the locking hole overlap;

[0030] The locking pin is used to be embedded in the matching hole and the locking hole when the matching hole and the locking hole coincide with each other, so as to fix the fixing part and the movable part so that the movable part cannot rotate around the rotating pin;

[0031] When the matching hole and the locking hole coincide with each other, the lowest point of the traveling wheel is higher than the lowest point of the load-bearing wheel.

[0032] At least one of the above technical solutions adopted in this specification can achieve the following beneficial effects:

[0033] In the railway track mileage measuring device provided in this specification, the device includes a running wheel, an encoder, a movable bracket and a spring assembly. The running wheel can travel on the upper surface of the track and cooperate with the encoder, and the encoder records the distance traveled by the running wheel. The movable bracket includes a fixed part and a movable part, and the fixed part is connected to the movable part through a rotating pin, and the movable part can rotate around the rotating pin. The spring assembly includes a spring shaft and a compression spring. The spring shaft passes through the fixed part, and the top end and the bottom end of the shaft at both ends are respectively located on both sides of the fixed part, and the bottom end of the shaft is also fixedly connected to the movable part. The compression spring can squeeze the bottom end of the shaft, and through the bottom end of the shaft and the movable part, compress the running wheel to fit closely to the upper surface of the track.

[0034] It can be seen from the above equipment that the device is capable of completing the mileage measurement of railway tracks, and the design of the compression spring and movable bracket can ensure that the running wheels are in close contact with the railway tracks when the railway tracks have ups and downs, thereby improving the precision, accuracy and efficiency of railway track mileage measurement. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] The drawings described herein are used to provide a further understanding of this specification and constitute a part of this specification. The illustrative embodiments and descriptions of this specification are used to explain this specification and do not constitute an improper limitation on this specification. In the drawings:

[0036] Figure 1 A schematic diagram of the structure of a railway track mileage measuring device provided for one embodiment of the present specification;

[0037] Figure 2 A schematic diagram of a portion of the structure of a railway track mileage measuring device provided in one embodiment of the present specification;

[0038] Figure 3 A schematic diagram showing the comparison of a movable part before and after rotation provided in one embodiment of the present specification;

[0039] Figure 4 A schematic diagram of a portion of the structure of a railway track mileage measuring device provided in one embodiment of the present specification;

[0040] Figure 5 A schematic diagram of the structure of a travel wheel provided in one embodiment of this specification;

[0041] Figure 6 A schematic diagram of a portion of the structure of a railway track mileage measuring device provided in one embodiment of the present specification;

[0042] Figure 7 A schematic diagram of a railway track mileage measuring device in use provided as an embodiment of the present specification;

[0043] Figure 8 A schematic diagram of the convergence state of a railway track mileage measuring device provided as an embodiment of the present specification. DETAILED DESCRIPTION

[0044] In order to make the purpose, technical solutions and advantages of this specification more clear, the technical solutions of this specification will be clearly and completely described below in combination with the specific embodiments of this specification and the corresponding drawings. Obviously, the described embodiments are only part of the embodiments of this specification, not all of the embodiments. Based on the embodiments in this specification, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0045] The technical solutions provided by the embodiments of this specification are described in detail below in conjunction with the accompanying drawings.

[0046] Figure 1 The following is a schematic diagram of a railway track mileage measurement device provided in accordance with an embodiment of the present specification. Figure 1 As shown, the railway track mileage measuring device includes a running wheel 1, an encoder 2, a movable bracket 3 and a spring assembly 4.

[0047] Preferably, the walking wheel 1 is fixedly connected to the movable bracket 3 .

[0048] Preferably, the running wheel 1 can travel along a railway track.

[0049] Preferably, the encoder 2 is fixedly connected to the traveling wheel 1 .

[0050] It is understood by those skilled in the art that the connection technology between mechanical structures has been developed to a relatively mature level. This specification does not elaborate on the specific connection methods of various components, nor does it limit the connection methods between various components. Any commonly used connection methods in the field can be used, such as welding, bolt connection, rivet connection, etc.

[0051] Preferably, the encoder 2 is used to record the distance traveled by the running wheel 1 .

[0052] Preferably, the encoder 2 is provided with a display screen for displaying the distance traveled by the running wheel 1 through the display screen.

[0053] Preferably, the movable bracket 3 includes a fixed part and a movable part.

[0054] Preferably, the fixed part and the movable part are connected via a rotating pin and a spring shaft.

[0055] Figure 2 A schematic diagram of a portion of the structure of a railway track mileage measurement device provided in one embodiment of this specification. Figure 2 As shown, the fixed member 31 and the movable member 32 are connected via the rotating pin 33 , and the fixed member 31 and the movable member 32 are also connected via the spring shaft 41 .

[0056] Preferably, the movable member 32 can rotate around the rotating pin 33 .

[0057] Figure 3 FIG. 1 is a comparative diagram of the movable member 32 before and after rotation provided in one embodiment of the present specification. Figure 3As shown, before and after the movable member 32 rotates, the fixed member 31 remains stationary, and the movable member 32 rotates a certain angle around the rotating pin 33, and drives the spring shaft 41 to move upward. Obviously, before and after the rotation, the spring shaft 41 moves upward significantly.

[0058] Preferably, the spring assembly 4 includes a spring shaft 41 and a compression spring 42 sleeved on the outside of the spring shaft.

[0059] Preferably, the spring shaft 41 passes through the fixing member 31 , and the bottom end and the top end of the shaft are respectively disposed on two sides of the fixing member 31 .

[0060] Preferably, the bottom end of the shaft is fixedly connected to the movable member 32 .

[0061] Preferably, the top end of the compression spring abuts against the fixing member, and the bottom end abuts against the bottom end of the shaft. Figure 2 As shown, the compression spring 42 is sleeved on the outside of the spring shaft 41 , with the bottom end abutting against the shaft bottom end 412 , and the top end abutting against the fixing member 31 .

[0062] Preferably, during normal use of the railway track mileage measuring device, the compression spring 42 is in a compressed state. That is, the compression spring 42 always applies pressure to the shaft bottom 412, and the shaft bottom 412 transmits the pressure to the running wheel 1 through the movable member 32, so that the running wheel 1 can be in close contact with the track and transmit the pressure to the track.

[0063] Preferably, the compression spring 42 can press the running wheel 1 to be in close contact with the upper surface of the track through the bottom end 412 of the shaft and the movable member 32 .

[0064] Preferably, the bottom end 412 of the spring shaft 41 is fixedly connected to the movable member 32 .

[0065] Preferably, the top end of the spring shaft 41 passes through a through hole provided in the fixing member 31 and is located at the other side of the fixing member 31 .

[0066] Preferably, the spring shaft 41 can pass through the through hole.

[0067] Preferably, the bottom end 412 and the top end of the spring shaft 41 are respectively located on two sides of the fixing member 31 .

[0068] Preferably, the bottom end 412 and the top end 412 of the spring shaft 41 are respectively disposed on two sides of the fixing member 31 .

[0069] Preferably, the fixing member 31 is provided with a through hole.

[0070] Preferably, the opening size of the through hole is smaller than the size of the top end of the spring shaft 41 and larger than the size of the main body of the spring shaft 41, which can block the top end of the shaft from passing through and allow the main body of the shaft to pass through.

[0071] Preferably, when the movable member 32 rotates around the rotating pin 33, the spring assembly 4 can be driven to move through the shaft bottom end 412, so that the shaft body and the fixed member 31 move relative to each other. Figure 3 shown.

[0072] Figure 4 A schematic diagram of a portion of the structure of a railway track mileage measurement device provided in one embodiment of this specification. Figure 4 As shown, the shaft bottom end 412 of the spring shaft 41 is fixedly connected to the movable member 32 , one end of the shaft body 413 of the spring shaft 41 is fixedly connected to the shaft bottom end 412 , and the other end is fixedly connected to the shaft top end 411 .

[0073] Preferably, the opening size of the through hole is smaller than the size of the shaft top 411, which can block the shaft top 411 from passing through. In other words, even if the spring assembly 4 is in a compressed state, the fixing member 31 will not allow the shaft top 411 to pass through the through hole under the action of the spring shaft 41.

[0074] Preferably, the opening size of the through hole is larger than the size of the shaft body 413 of the spring shaft 41, and can allow the shaft body 413 to pass through. That is, when the fixing member 31 is subjected to a downward force and / or the running wheel 1 is subjected to an upward force, the movable member 32 can rotate upward around the rotating pin 33, further compressing the compression spring 42 and driving the spring shaft 41 to move upward, so that part of the shaft body 413 of the spring shaft 41 passes through the through hole and is exposed on the other side of the fixing member 31. Figure 3 As shown, Figure 3 In the embodiment, a part of the structure of the shaft body 413 passes through the through hole and is exposed on the other side of the fixing member 31.

[0075] Preferably, when the movable member 32 rotates around the rotating pin 33 , the shaft body 413 can pass through the through hole.

[0076] Preferably, the compression spring 42 is sleeved on the outer side of the shaft body 413. Figure 4 shown.

[0077] Preferably, two ends of the compression spring 42 abut against the shaft bottom end 412 and the fixing member 31 respectively.

[0078] Preferably, the compression spring 42 can squeeze the shaft bottom end 412 and, through the shaft bottom end 412 and the movable member 32 , press the running wheel 1 to be in close contact with the upper surface of the railway track.

[0079] It should be noted that the running wheel 1 is in direct contact with the upper surface of the track. Those skilled in the art can understand that in the process of measuring track mileage, the track mileage can usually be measured with the upper surface or side surface of the track as the target. But in fact, the two methods are completely different. When the side surface of the track is used as the target to measure the track mileage, the measurement effect is not easily affected by the ups and downs of the track. However, when the upper surface of the track is used as the target to measure the track mileage, the measurement effect is easily affected by the ups and downs of the track. Therefore, for this method of measuring the track mileage with the upper surface of the track as the target, the railway track mileage measurement device provided in this specification can greatly reduce the impact of track ups and downs and improve measurement precision, accuracy and efficiency.

[0080] based on Figure 1 The railway track mileage measuring device shown in the figure includes a running wheel 1, an encoder 2, a movable bracket 3 and a spring assembly 4. The running wheel 1 can travel on the upper surface of the track and cooperate with the encoder 2, and the encoder 2 records the distance traveled by the running wheel 1. The movable bracket 3 includes a fixed part 31 and a movable part 32, and the fixed part 31 is connected to the movable part 32 by a rotating pin 33, and the movable part 32 can rotate around the rotating pin 33. The spring assembly 4 includes the spring shaft 41 and a compression spring 42, and the shaft bottom end 412 of the spring shaft 41 is fixedly connected to the movable part 32. The compression spring 42 can squeeze the shaft bottom end 412, and through the shaft bottom end 412 and the movable part 32, the running wheel 1 is pressed against the upper surface of the track.

[0081] It can be seen from the above equipment that the device is capable of completing the mileage measurement of the railway track, and the design of the spring assembly 4 and the movable bracket 3 can ensure that the walking wheel 1 is in close contact with the railway track when the railway track has ups and downs, thereby improving the precision, accuracy and efficiency of the railway track mileage measurement.

[0082] Preferably, the encoder 2 includes a rotating part and a stationary part.

[0083] Preferably, the encoder 2 extends a connecting line 21, such as Figure 2 as well as Figure 3 shown.

[0084] Preferably, the rotating component is fixedly connected to the running wheel 1 and can rotate coaxially with the running wheel 1 .

[0085] Preferably, the stationary component is fixedly connected to the movable component 32, and can record the rotation data of the rotating component, and determine the distance traveled by the running wheel 1 based on the rotation data and pre-stored running wheel parameters.

[0086] The rotation data at least includes a rotation angle.

[0087] Those skilled in the art can understand that the development of the encoder 2 is already relatively mature, and this specification will not describe the structure of the encoder 2 in detail. The encoder 2 can adopt an encoder 2 commonly used in the field, such as a mechanical encoder 2, an optical encoder 2, a magnetoelectric encoder 2, etc.

[0088] Preferably, the traveling wheel 1 comprises a wheel body, a shaft and a bearing.

[0089] Preferably, the wheel body is sleeved on the outside of the bearing, and the bearing is sleeved on the outside of the shaft.

[0090] Figure 5 This is a schematic diagram of the structure of the running wheel 1 provided in one embodiment of the present specification. Figure 5 As shown, the traveling wheel 1 includes a wheel body 11 , an axle 12 and a bearing 13 .

[0091] Preferably, the fixing member 31 includes a bearing platform and a lower swing arm.

[0092] Preferably, a through hole is opened on the surface of the carrying platform, the top end 411 of the shaft is higher than the upper surface of the carrying platform, and the bottom end 412 of the shaft is lower than the upper surface of the carrying platform.

[0093] Preferably, the carrying platform is used to carry articles.

[0094] Preferably, the lower swing arm is fixedly connected to the bearing platform, and the lower swing arm is connected to the movable part 32 via the rotating pin 33 .

[0095] Figure 6 A schematic diagram of a portion of the structure of a railway track mileage measurement device provided in one embodiment of this specification. Figure 6 As shown, the through hole 3111 is configured on the carrying platform 311 , the carrying platform 311 is fixedly connected to the lower swing arm 312 , and the lower swing arm 312 is connected to the movable part 32 via the rotating pin 33 .

[0096] Preferably, the mass of the carrying platform 311 and / or the article carried by the carrying platform 311 is greater than a preset mass threshold.

[0097] Preferably, the supporting platform 311 can squeeze the spring assembly 4 so that a partial structure of the shaft body 413 of the spring shaft 41 passes through the supporting platform 311 and is exposed to the outside of the upper surface of the supporting platform 311, and the spring assembly 4 squeezes the bottom end 412 of the shaft, and through the bottom end 412 of the shaft and the movable part 32, presses the walking wheel 1 to fit tightly against the upper surface of the track.

[0098] It should be noted that if the spring assembly 4 is in a compressed state and the elastic force is large, making it difficult for the movable part 32 to rotate around the rotating pin 33, the movable part 32, the fixed part 31, and the spring assembly 4 achieve a force balance inside. In this case, the movable part 32 is difficult to rotate, and if the railway track is up and down, it is difficult for the spring assembly 4 to press the running wheel 1 to fit closely with the upper surface of the track through the shaft bottom 412 and the movable part 32.

[0099] Therefore, in one or more preferred embodiments of the present specification, during normal use of the railway track mileage measuring device, the bearing platform 311 can compress the spring assembly 4, so that the spring assembly 4 is in a contracted state, and a portion of the structure of the shaft body 413 of the rotating shaft is exposed above the fixing member 31. In this case, if the railway track is up and down, the spring assembly 4 can be extended and retracted, and the spring shaft 41 is driven to move through the fixing member 31, and the length of the portion of the shaft body 413 of the spring shaft 41 exposed above the fixing member 31 is changed to adapt to the ups and downs of the railway track, so that the running wheel 1 can be closely attached to the track.

[0100] Preferably, the device further comprises a locking pin.

[0101] Preferably, the fixing member 31 is further provided with a locking hole, and the size of the locking hole is adapted to the locking pin.

[0102] Preferably, the movable member 32 is further provided with a matching hole, and the size of the matching hole is adapted to the locking pin.

[0103] Preferably, the opening positions of the matching hole and the locking hole are matched, so that when the movable member 32 rotates around the rotating pin 33, it can rotate until the matching hole and the locking hole overlap.

[0104] Preferably, during normal use of the railway track mileage measuring device, the matching hole is below the locking hole. In this case, if the matching hole needs to be overlapped with the locking hole, the movable part 32 needs to be rotated upward. During the upward rotation of the movable part 32, the running wheel 1 can be driven to move upward.

[0105] Preferably, the locking pin can be embedded in the matching hole and the locking hole when the matching hole and the locking hole overlap.

[0106] Preferably, the locking pin is used to fix the fixing member 31 and the movable member 32 when embedded in the matching hole and the locking hole, so that the movable member 32 cannot rotate around the rotating pin 33 .

[0107] Those skilled in the art can understand that when the locking pin is embedded in the matching hole and the locking hole, the height of the running wheel 1 is higher than the height of the running wheel 1 when the railway track mileage measuring device is in normal use, so the locking pin is also used to raise the running wheel 1. Moreover, when the running wheel 1 is raised, the running wheel 1 is likely to leave the track, so in one or more preferred embodiments of the present specification, the locking pin is also used to close the running wheel 1, that is, close the running wheel 1 when the running wheel 1 is not in use.

[0108] Preferably, when the matching hole coincides with the locking hole, a portion of the shaft body 413 of the spring shaft 41 passes through the through hole 3111 and is exposed to the other side of the fixing member 31 .

[0109] Figure 7 The following is a schematic diagram of a railway track mileage measurement device in use according to an embodiment of the present specification. Figure 7 As shown, during normal use, the locking hole 313 and the matching hole 321 do not overlap, and the position of the running wheel 1 is relatively low.

[0110] Figure 8 A schematic diagram of the convergence state of a railway track mileage measurement device provided in one embodiment of this specification. Figure 8 As shown, in the retracted state, the locking hole 313 overlaps with the matching hole 321 and is penetrated by the locking pin 35, and the position of the running wheel 1 is higher.

[0111] Preferably, the side of the running wheel 1 in contact with the railway track is made of frosted material, and the friction coefficient is greater than a preset value, so that the running wheel 1 does not deviate when traveling on the railway track.

[0112] Preferably, the preset value is pre-set, such as 0.6, 0.8, 0.9, etc.

[0113] Preferably, the material of the running wheel 1 is rubber, thermoplastic elastomer or the like.

[0114] Preferably, the side of the running wheel 1 in contact with the railway track is concave, which matches the shape of the railway track, so that the running wheel 1 does not deviate when traveling on the railway track.

[0115] Preferably, the surface of the running wheel 1 is concave, which is adapted to the shape of the railway track, so that the running wheel 1 does not deviate when traveling on the railway track.

[0116] Those skilled in the art can understand that, generally, a railway track is high in the middle and low on both sides, similar to a convex shape. Therefore, in order to ensure that the running wheel 1 does not deviate during the travel, in one or more preferred embodiments provided in this specification, the surface of the running wheel 1 is concave, which is adapted to the shape of the railway track, so that the running wheel 1 does not deviate when traveling on the railway track.

[0117] The above is a railway track mileage measuring device provided in this specification. Based on the same idea, this specification also provides a railway track maintenance equipment.

[0118] Preferably, the railway track maintenance equipment includes the railway track mileage measuring device provided by any one of the above-mentioned embodiments.

[0119] Preferably, the railway track inspection equipment is equipped with a plurality of load-bearing wheels and at least one railway track mileage measuring device, and the railway track mileage measuring device is equipped with a locking hole 313 , a matching hole 321 and a locking pin 35 .

[0120] Preferably, when the matching hole 321 overlaps with the locking hole 313, the lowest point of the traveling wheel 1 is higher than the lowest point of the load-bearing wheel.

[0121] Preferably, when the matching hole 321 and the locking hole 313 do not overlap, the lowest point of the traveling wheel 1 is flush with the lowest point of the load-bearing wheel, and can be in close contact with the track at the same time.

[0122] Preferably, during normal use of the railway track mileage measuring device, that is, when the matching hole 321 and the locking hole 313 do not overlap, the lowest point of the running wheel 1 is lower than the lowest point of the load-bearing wheel.

[0123] It should be noted that all actions of acquiring signals, information or data in this application are carried out in compliance with the relevant data protection laws and policies of the country where they are located, and with the authorization given by the owner of the corresponding device.

[0124] It should also be noted that the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, commodity or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, commodity or device. In the absence of more restrictions, the elements defined by the sentence "comprises a ..." do not exclude the existence of other identical elements in the process, method, commodity or device including the elements.

[0125] Each embodiment in this specification is described in a progressive manner, and the same or similar parts between the embodiments can be referred to each other, and each embodiment focuses on the differences from other embodiments. In particular, for the system embodiment, since it is basically similar to the method embodiment, the description is relatively simple, and the relevant parts can be referred to the partial description of the method embodiment.

[0126] The above description is only an embodiment of this specification and is not intended to limit this specification. For those skilled in the art, this specification may have various changes and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of this specification should be included in the scope of the claims of this application.

Claims

1. A railway track mileage measuring device, characterized in that: include: A movable bracket, comprising a fixed part and a movable part, wherein the fixed part and the movable part are connected via a rotating pin, and the movable part can rotate around the rotating pin; A traveling wheel, fixedly connected to the movable member and capable of traveling along the track; The spring assembly comprises a spring shaft and a compression spring sleeved on the outside of the spring shaft; the spring shaft passes through the fixing member, the bottom end and the top end of the shaft are respectively arranged on both sides of the fixing member, and the bottom end of the shaft is fixedly connected to the movable member; the compression spring can press the walking wheel to be in close contact with the upper surface of the track through the bottom end of the shaft and the movable member; An encoder is fixedly connected to the walking wheel and is used to record the distance traveled by the walking wheel.

2. The railway track mileage measuring device according to claim 1, characterized in that: The fixing member is provided with a through hole, and the opening size of the through hole is smaller than the size of the top end of the shaft and larger than the size of the shaft body of the spring shaft, so as to block the top end of the shaft from passing through and allow the shaft body to pass through; When the movable part rotates around the rotating pin, the spring assembly can be driven to move through the bottom end of the shaft, so that the shaft body and the fixed part move relative to each other.

3. The railway track mileage measuring device according to claim 1, characterized in that: The top end of the compression spring abuts against the fixing member, and the bottom end abuts against the bottom end of the shaft, and is in a compressed state.

4. The railway track mileage measuring device according to any one of claims 1 to 3, characterized in that: The fixing member includes a load-bearing platform and a lower swing arm; A through hole is provided on the surface of the carrying platform, the top end of the shaft is higher than the upper surface of the carrying platform, and the bottom end of the shaft is lower than the upper surface of the carrying platform; the carrying platform is used to carry articles; The lower swing arm is fixedly connected to the bearing platform, and the lower swing arm is connected to the movable part through the rotating pin.

5. The railway track mileage measuring device according to claim 4, characterized in that: The mass of the carrying platform and / or the items carried by the carrying platform is greater than a preset mass threshold, which can squeeze the compression spring, so that part of the structure of the shaft body of the spring shaft passes through the carrying platform and is exposed to the outside of the upper surface of the carrying platform, and the compression spring squeezes the bottom end of the shaft, and through the bottom end of the shaft and the movable part, presses the walking wheel to fit tightly against the upper surface of the track.

6. The railway track mileage measuring device according to any one of claims 1 to 3, characterized in that: The device also includes a locking pin; The fixing piece is also provided with a locking hole, and the size of the locking hole is adapted to the locking pin; The movable part is also provided with a matching hole, and the size of the matching hole is adapted to the locking pin; the opening positions of the matching hole and the locking hole are adapted, so that when the movable part rotates around the rotating pin, it can rotate until the matching hole and the locking hole overlap; The locking pin is used to be embedded in the matching hole and the locking hole when the matching hole and the locking hole coincide with each other, so as to fix the fixing part and the movable part so that the movable part cannot rotate around the rotating pin.

7. The railway track mileage measuring device according to claim 6, characterized in that: When the matching hole and the locking hole overlap, a portion of the structure of the shaft body of the spring shaft passes through the fixing member and is exposed at the other side of the fixing member.

8. The railway track mileage measuring device according to any one of claims 1 to 3, characterized in that: The side of the running wheel in contact with the railway track is made of frosted material, and the friction coefficient is greater than a preset value. The side of the running wheel in contact with the railway track is concave, which is adapted to the shape of the railway track, so that the running wheel does not deviate when traveling on the railway track.

9. A railway track maintenance equipment, characterized in that: A railway track mileage measuring device comprising the device described in any one of claims 1-8.

10. The railway track maintenance equipment according to claim 9, characterized in that: The railway track maintenance equipment is equipped with a plurality of load-bearing wheels and at least one railway track mileage measuring device; The railway track mileage measuring device also includes a locking pin; The fixing piece is also provided with a locking hole, and the size of the locking hole is adapted to the locking pin; The movable part is also provided with a matching hole, and the size of the matching hole is adapted to the locking pin; the opening positions of the matching hole and the locking hole are adapted, so that when the movable part rotates around the rotating pin, it can rotate until the matching hole and the locking hole overlap; The locking pin is used to be embedded in the matching hole and the locking hole when the matching hole and the locking hole coincide with each other, so as to fix the fixing part and the movable part so that the movable part cannot rotate around the rotating pin; When the matching hole and the locking hole coincide with each other, the lowest point of the traveling wheel is higher than the lowest point of the load-bearing wheel.

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