Detector

Abstract

The utility model provides a detector which is used for monitoring the straightness of a contact line, the detector comprises a support frame, at least two first roller groups and a detection assembly, a lifting assembly is arranged on the support frame, the two first roller groups are arranged at intervals and are both connected with the lifting assembly, and the detection assembly is arranged on the support frame. The lifting assembly rolls the at least two first roller groups on the upper part of the contact line under the action of elastic force, and the displacement of the support frame away from or close to the contact line is dynamically adjustable; the detection assembly is connected with the supporting frame and used for detecting the current conveying working face, deviating from the first roller set, of the contact line. According to the detector provided by the utility model, the lifting assembly is arranged on the support frame, the first roller group can roll on the upper part of the contact line, and the influence of the unevenness of the upper part of the contact line on the support frame and the detection process and result can be reduced; therefore, the detection assembly can accurately detect the current conveying working face of the contact line.

Description

Technical Field

[0001] The utility model relates to the technical field of electrified railway detection equipment, in particular to a detection instrument. Background Art

[0002] The contact wire, also known as the tramline, is a crucial component of the electrified railway overhead contact network. It is typically cylindrical with grooves on both sides. The grooves facilitate the installation of dropper clamps and the suspension of the contact wire without interfering with the pantograph's current collection. The lower arc of the contact wire, known as the working surface, is used to contact the pantograph of the electric locomotive to transmit current.

[0003] Since the contact wire directly transmits current to the electric locomotive through sliding friction with the pantograph slide on the electric locomotive, its performance directly affects the current collection quality of the electric locomotive and the safe operation of the locomotive. At the same time, the contact wire has the worst working environment among all power supply wires. During normal operation, it needs to withstand impact, vibration, temperature changes, environmental corrosion, wear, electric spark erosion and great working tension. Therefore, the straightness of the contact wire is particularly important. In the maintenance process of the contact network, the straightness detection of the contact wire is essential. The market urgently needs convenient and reliable detection equipment. Utility Model Content

[0004] The purpose of the present invention is to provide a detector to solve the technical problem of how to conveniently and reliably detect the straightness of the contact line. The various technical effects that can be produced by the preferred technical solution among the many technical solutions provided by the present invention are described in detail below.

[0005] To achieve the above object, the present invention provides a detector for monitoring the straightness of a contact line, the detector comprising:

[0006] A support frame, wherein a lifting assembly is provided on the support frame;

[0007] at least two first roller groups, the two first roller groups being spaced apart and connected to the lifting assembly, the lifting assembly rolling the at least two first roller groups above the contact line under the action of elastic force, and the displacement of the support frame away from or close to the contact line being dynamically adjustable;

[0008] A detection component is connected to the support frame and is used to detect the current conveying working surface of the contact line that is away from the first roller group.

[0009] The detector of the present invention is configured with a lifting assembly on a support frame, so that the first roller group can roll on the upper part of the contact line and can reduce the influence of the unevenness of the upper part of the contact line on the support frame and the detection process and results, so that the detection assembly can accurately detect the current transmission working surface of the contact line. Therefore, the detector of the present invention can conveniently and reliably detect the straightness of the current transmission working surface of the contact line, so that the contact line can be in good contact with the pantograph of the electric locomotive to stably transmit current.

[0010] In some embodiments of the present invention, the lifting assembly includes:

[0011] a swing rod, one end of which is rotatably connected to the first roller assembly, and the other end of which is rotatably connected to the support frame;

[0012] A first elastic member, one end of which is connected to one end of the rocker arm, is used to provide a pulling force to the first roller assembly so as to press against the upper portion of the contact line, and the other end of the first elastic member is connected to the support frame.

[0013] In some embodiments of the present invention, the lifting assembly further includes a first limit member and a second limit member, both of which are provided on the support frame and located on both sides of the rocker arm for limiting the swing angle of the rocker arm.

[0014] In some embodiments of the present invention, the rocker arm has at least one equilibrium position within the range of the swing angle, and at the equilibrium position, the connection positions at both ends of the first elastic member and the rotational connection position between the rocker arm and the support frame are collinear.

[0015] In some embodiments of the present invention, the pulling force provided by the first elastic member is F1, and the gravity of the support frame and the detection assembly is W, wherein the component of the pulling force F1 in the vertical direction is greater than the gravity W.

[0016] In some embodiments of the present invention, the detection component includes:

[0017] at least one second roller assembly connected to the support frame and capable of rolling along the current conveying working surface;

[0018] an elastic component, the elastic component being connected to the second roller group and the support frame respectively, and providing elastic force to support the second roller group to roll on the current conveying working surface;

[0019] A detection member is provided on the support frame and is connected to the second roller group, and the detection member is used to detect the displacement of the second roller group along a direction perpendicular to the extension direction of the contact line.

[0020] In some embodiments of the present invention, the elastic component includes:

[0021] a transmission assembly, wherein a portion of the transmission assembly is slidably connected to the support frame, and one end of the transmission assembly is connected to the second roller assembly to drive the second roller assembly to move in a direction perpendicular to the extension direction of the contact line;

[0022] A second elastic member, one end of the second elastic member is connected to the support frame, and the other end is connected to the transmission assembly, and the second elastic member is used to provide a pressing force between the second roller group and the current transmission working surface.

[0023] In some embodiments of the present invention, the maximum tension provided by the second elastic member is F2, wherein the component of the tension F1 in the vertical direction is greater than the sum of the gravity W and the maximum tension F2.

[0024] In some embodiments of the present invention, the detection component further includes:

[0025] at least two third roller groups, the two third roller groups being arranged on the support frame and both capable of rolling along the current conveying working surface;

[0026] Wherein, the two third roller groups are arranged on both sides of the second roller group along the extension direction of the contact line.

[0027] In some embodiments of the present invention, the detection component further includes:

[0028] a processor connected to the detection element to obtain the displacement;

[0029] A display component is electrically connected to the processor and is used to display the displacement.

[0030] In some embodiments of the present invention, the display assembly is disposed on the support frame; or, the display assembly is electrically connected to the processor via a transmission cable.

[0031] In some embodiments of the present invention, the detection member includes a displacement sensor, and a detection end of the displacement sensor is arranged opposite to the second roller group and is located on a side of the second roller group away from the contact line.

[0032] In some embodiments of the present invention, the detection component also includes a grating scale sensor, the grating scale sensor includes a scale grating and a grating reading head, the scale grating is connected to the transmission assembly, and the grating reading head is arranged on the support frame for detecting the displacement.

[0033] In some embodiments of the present invention, the detector further comprises an audible and visual alarm, and the audible and visual alarm is electrically connected to the processor;

[0034] A target displacement is preset in the processor, and when the displacement detected by the detection element exceeds the target displacement, the processor controls the sound and light alarm to start an alarm. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0036] Figure 1 This is a schematic structural diagram of a detector according to an embodiment of the present utility model;

[0037] Figure 2 This is a schematic structural diagram of the detector according to another embodiment of the present invention;

[0038] Figure 3 for Figure 2 A partial enlarged view of

[0039] Figure 4 This is an exploded schematic diagram of a detector according to an embodiment of the present invention, showing an elastic component;

[0040] Figure 5 for Figure 4 A partial enlarged view of .

[0041] Reference numerals:

[0042] 100. Detector;

[0043] 110, support frame;

[0044] 120, lifting assembly; 121, swing rod; 122, first elastic member; 123, first limiting member; 124, second limiting member;

[0045] 130, first roller group;

[0046] 140. Detection assembly; 141. Second roller assembly; 142. Elastic assembly; 143. Transmission assembly; 144. Second elastic member; 145. Detection member; 1451. Grating scale sensor; 1452. Scale grating; 146. Third roller assembly;

[0047] 150. Display component;

[0048] 160. Hand piece. DETAILED DESCRIPTION

[0049] To make the purpose, technical solution, and advantages of the present invention more clear, the technical solution of the present invention will be described in detail below. Obviously, the embodiments described are only some of the embodiments of the present invention, and not all of them. Based on the embodiments of the present invention, all other implementation methods obtained by ordinary technicians in this field without making any creative efforts are within the scope of protection of the present invention.

[0050] In the description of the present invention, it should be noted that, unless otherwise specified, "plurality" means two or more; the terms "upper", "lower", "left", "right", "inner", "outer", "front", "rear", "head", "tail", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings and are intended only to facilitate the description of the present invention and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific direction, be constructed and operate in a specific direction, and therefore should not be construed as limiting the present invention. In addition, the terms "first", "second", "third", etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0051] It should also be noted that, in the description of this utility model, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood broadly. For example, they may refer to fixed, detachable, or integral connections; mechanical or electrical connections; and direct or indirect connections through an intermediary. Those skilled in the art will understand the specific meanings of these terms in this utility model depending on the specific circumstances.

[0052] The utility model provides a detector that can detect the straightness of the contact wire. During the detection process of the contact wire, the detector is suspended on the contact wire and can roll along the contact wire, so that the longer contact wires in the contact wire network can be detected, and the damaged areas on the contact wire can be discovered in time, thereby reducing the occurrence of poor contact between the contact wire and the pantograph of the electric locomotive, thereby minimizing the possibility of failure during the current transmission process.

[0053] The detector provided in the utility model is a new detection technology obtained by the applicant on the basis of improving the previous product. The improvement is reflected in that a lifting component is set in the detector to overcome the influence of the unevenness of the upper part of the contact line on the detection results, thereby ensuring the accuracy of the detection results.

[0054] Furthermore, the detector of the present invention adjusts the detection base to the lower surface of the contact wire, that is, uses the current conveying working surface of the contact wire as the detection reference, which further improves the accuracy of the detection and can accurately identify the damaged area of the contact wire.

[0055] The detector of the present invention is described in detail below with reference to the accompanying drawings. It should be noted that the accompanying drawings and embodiments are only used to explain the detector of the present invention and cannot be understood as limiting the present invention.

[0056] Figure 1 This is a schematic diagram of the structure of the detector according to an embodiment of the present utility model. Figure 2 This is a schematic structural diagram of the detector according to another embodiment of the present invention, as shown in FIG. Figure 1 and Figure 2 As shown, the detector 100 of the present invention includes a support frame 110, two first roller groups 130, and a detection component 140. The detection component 140 and the two roller groups are all arranged on the support frame 110, wherein a lifting component 120 is also provided on the support frame 110, and the two roller groups are connected to the support frame 110 through the lifting component 120. The lifting component 120 can provide elastic force. Under the action of the elastic force, the two roller groups can be pressed against the upper part of the contact line and rolled on the upper part of the contact line along the length extension direction of the contact line. At the same time, the displacement of the support frame 110 away from and close to the contact line is dynamically adjustable.

[0057] When the two roller groups roll and move on the upper part of the contact line and encounter uneven obstacles on the upper part of the contact line, the lifting component 120 adaptively adjusts the relative distance between the support frame 110 and the contact line by adjusting the elastic force, thereby reducing the impact on the detection component 140 set on the support frame 110.

[0058] The detection component 140 is disposed on the support frame 110 to detect the flatness of the current-carrying working surface at the bottom of the contact wire.

[0059] In one embodiment of the present invention, a plurality of first roller assemblies 130 may be provided, and the plurality of first roller assemblies 130 are connected to the support frame 110 via the lifting assembly 120 , thereby improving the suspension stability of the entire detector.

[0060] A complete technical solution of the present invention is summarized as follows: The detector 100 is used to monitor the straightness of the contact line, and the detector 100 includes:

[0061] A support frame 110, on which a lifting assembly 120 is provided;

[0062] At least two first roller assemblies 130 are spaced apart and connected to the lifting assembly 120. The lifting assembly 120 rolls the at least two first roller assemblies 130 above the contact line under the action of elastic force, and the displacement of the support frame 110 away from or close to the contact line is dynamically adjustable;

[0063] The detection component 140 is connected to the support frame 110 and is used to detect the current-transmitting working surface of the contact line that is away from the first roller assembly 130.

[0064] In one embodiment of the present invention, the lifting assembly 120 includes a rocker arm 121 and a first elastic member 122. One end of the rocker arm 121 is rotatably connected to the first roller assembly 130, and the other end is rotatably connected to the support frame 110. One end of the first elastic member 122 is connected to one end of the rocker arm 121 and is used to provide a pulling force to the first roller assembly 130 so as to press against the upper portion of the contact line. The other end of the first elastic member 122 is connected to the support frame 110. The detector 100 in this embodiment provides elastic force by providing the first elastic member 122. The first elastic member 122 can be a spring or made of a material such as rubber. The relative distance or relative position between the support frame 110 and the contact line is adjusted by providing the rocker arm 121.

[0065] Among them, the relative rotation between the first roller group 130 and the rocker arm 121 is achieved by setting a rotating shaft. One end of the first elastic member 122 can also be set on the rotating shaft, and the other end is connected to the support frame 110, so as to provide elastic force to suspend the entire support frame 110 and the detection component 140 on the contact line.

[0066] In one embodiment of the present invention, Figure 2 As shown, the lifting assembly 120 further includes a first stopper 123 and a second stopper 124. The first stopper 123 and the second stopper 124 are disposed on the support frame 110 and are located on either side of the swing arm 121 to limit the swing angle of the swing arm 121. In this embodiment, the detector 100, by providing the first stopper 123 and the second stopper 124, limits the swing angle to within a certain range, thereby facilitating the stability of the detector 100 during installation and testing.

[0067] Figure 3 for Figure 2 A partial enlarged view, combined with Figure 2 and Figure 3 The swing range of the rocker arm 121 is limited to the swing angle α, and the swing can always be limited to the upper swing of the support frame 110. Because the contact line needs to be set between the first roller group 130 and the support frame 110, therefore, by limiting the relative position between the swing and the support frame 110, it is avoided that the rocker arm 121 swings to the bottom of the support frame 110 and cannot be installed on the contact line.

[0068] Specifically, the first limiter 123 and the second limiter 124 can be fasteners provided on the support frame 110, such as bolts or screws, arranged on both sides of the swing rod 121 to prevent the swing rod 121 from swinging outside the swing angle α range.

[0069] Designers can also arrange the relative positions of the first limiting member 123 and the second limiting member 124 and the rocker arm 121 according to actual needs, thereby adjusting the range of the rocking angle α of the rocker arm 121 .

[0070] In one embodiment of the present invention, the pendulum 121 has at least one equilibrium position within the range of the swing angle, and at the equilibrium position, the connection positions at both ends of the first elastic member 122 and the rotational connection position between the pendulum 121 and the support frame 110 are collinear. In the detector 100 of this embodiment, at each equilibrium position, the pendulum 121 and the first roller assembly 130 are able to achieve force balance, so that the pendulum 121 and the first roller assembly 130 are in a temporarily stable state. In this state, the operator can suspend the detector 100 on the contact line, and then move the pendulum 121 or the first roller assembly 130 to finally press the first roller assembly 130 against the upper part of the contact line.

[0071] It should be noted that when the rocker arm 121 is in a vertical state and the connection points at both ends of the first elastic member 122 are in the same straight line as the connection points between the rocker arm 121 and the support rod, the rocker arm 121 and the first roller group 130 are more likely to reach balance. A more special situation is that the connection points at both ends of the first elastic member 122 are in the same straight line as the connection points between the rocker arm 121 and the support rod, and the straight line is in a vertical state, the length extension direction of the rocker arm 121 is the same, and the rocker arm 121 and the first roller group 130 are in a balanced state.

[0072] Therefore, within the swing angle α range of the pendulum rod 121, there can be multiple equilibrium positions, that is, the pendulum rod 121 is in a vertical state. By adjusting the swing angle between the pendulum rod 121 and the support frame 110, the stability of the pendulum rod 121 and the first roller group 130 can be adjusted, and the operator can more easily install the entire detector 100 on the contact line.

[0073] In some embodiments of the present invention, in order to facilitate the adjustment of the lifting assembly 120, other swing mechanisms may be provided to replace the swing rod 121 to make it more stable.

[0074] In one embodiment of the present invention, the tension provided by the first elastic member 122 is F1, and the weight of the support frame 110 and the detection assembly 140 is W, wherein the vertical component of the tension F1 is greater than the weight W. The detector 100 in this embodiment, by limiting the elastic force of the first elastic member 122, ensures that when the detector 100 is suspended on the contact line, the support frame 110 has good stability, and the detection assembly 140 can stably and accurately detect the current transmission working surface of the contact line.

[0075] like Figure 3 As shown, when the direction of the pulling force F1 provided by the first elastic member 122 is in an inclined state relative to the support frame 110 , the component of the pulling force F1 in the vertical direction should be at least greater than the total weight W of the support frame 110 and the detector 100 .

[0076] The pulling force F1 is the pulling force generated when the first elastic member 122 is in any working state, and is not just the maximum pulling force of the first elastic member 122 being greater than the gravity W of the support frame 110 and the detection assembly 140 .

[0077] In the detector 100 of this embodiment, under the action of the first elastic member 122, when the first roller assembly 130 rolls on the upper part of the contact line, the support frame 110 and the detection assembly 140 will not sink to a position far away from the contact line and be unable to detect the current transmission working surface.

[0078] Figure 4 This is a schematic diagram of an exploded view of a detector according to an embodiment of the present invention, in which the elastic component 142 is shown. Figure 4 As shown, in one embodiment of the present invention, the detection component 140 includes at least one second roller group 141, an elastic component 142 and a detection member 145. The second roller group 141 is connected to the support frame 110 and can roll along the current conveying working surface; the elastic component 142 is respectively connected to the second roller group 141 and the support frame 110, and provides elastic force to support the second roller group 141 to roll on the current conveying working surface; the detection member 145 is provided on the support frame 110 and connected to the second roller group 141. The detection member 145 is used to detect the displacement of the second roller group 141 along the direction perpendicular to the extension direction of the contact line.

[0079] In the detector 100 of this embodiment, the elastic component 142 provides elastic force to the second roller group 141 so that it is pressed against the current transmission working surface of the contact line, so that when the second roller group 141 rolls along the length extension direction of the contact line, the detection member 145 can detect the displacement change of the second roller group 141 in the direction perpendicular to the length extension direction of the contact line, and thus obtain the damage state of the current transmission working surface.

[0080] Figure 5 for Figure 4 A partial enlarged view of Figure 5 As shown, in one embodiment of the present invention, the elastic component 142 includes a transmission component 143 and a second elastic member 144, a partial area of the transmission component 143 is slidably connected to the support frame 110, and one end of the transmission component 143 is connected to the second roller group 141 to drive the second roller group 141 to move in a direction perpendicular to the extension direction of the contact line; one end of the second elastic member 144 is connected to the support frame 110, and the other end is connected to the transmission rod, and the second elastic member 144 is used to provide a pressing force between the second roller group 141 and the current transmission working surface.

[0081] When installing the detector 100 in this embodiment, the second roller group 141 should be driven by the transmission component 143 to move a certain distance away from the contact line, so as to avoid interference between the side of the first roller group 130 and the contact line and the inability to install the detector 100.

[0082] In this embodiment, the transmission assembly 143 is slidably connected to the support assembly, which ensures that the transmission assembly 143 and the second roller assembly 141 have high stability, facilitating detection by the detection member 145. The transmission assembly 143 can also be provided with a handle, which can be used to pull the transmission assembly 143 and the second roller assembly 141 to move, facilitating operator adjustment and detection.

[0083] like Figure 4 As shown, in one embodiment of the present invention, the detector 100 further includes a handpiece 160 , which is connected to the support frame 110 and is used to drive the support frame 110 to move along the contact line.

[0084] like Figure 4 As shown, a protective shell is further provided on the upper part of the handpiece 160, and a accommodating cavity is provided in the protective shell. When one end of the protective shell is connected to the support frame 110, the elastic component 142 is located in the accommodating cavity, thereby protecting the elastic component 142 from external impact. The transmission component 143 can also be slidably connected to the protective shell. When the protective shell is connected to the support frame 110, the transmission component 143 slides relative to the protective shell, thereby being able to change the relative position with the support frame 110 along the length extension direction of the vertical contact line.

[0085] In one embodiment of the present invention, the maximum tension provided by the second elastic member 144 is F2, wherein the vertical component of the tension F1 is greater than the sum of the gravity W and the maximum tension F2. In the detector 100 of this embodiment, when the first roller assembly 130 is pressed against the upper portion of the contact line and rolls along the length of the contact line, the second roller assembly 141 connected to the support frame 110 can be pressed against the current transmission working surface of the contact line under the action of the first elastic member 122, thereby ensuring that the detection assembly 140 can accurately detect damage to the current transmission working surface.

[0086] In one embodiment of the present invention, the detection assembly 140 also includes at least two third roller groups 146, which are arranged on the support frame 110 and are both capable of rolling along the current transmission working surface; wherein, the two third roller groups 146 are arranged on both sides of the second roller group 141 along the extension direction of the contact line.

[0087] In the detector 100 of this embodiment, two third roller groups 146 are respectively provided on both sides of the second roller group 141 of the detection component 140. The third roller groups 146 roll along the current conveying working surface of the contact line and serve as the detection reference of the detection component 140.

[0088] It should be noted that the two third roller groups 146 are rotatably connected to the support frame 110, and the relative position between the rotating shaft and the support frame 110 does not change. The detection component 140 uses the contact point between the two third rollers and the current transmission working surface as a reference for detection. When the wear on the current transmission working surface exceeds the preset value or is severely damaged, the detection component 140 accurately measures the movement of the second roller in the length extension direction perpendicular to the contact line.

[0089] A plurality of third roller groups 146 may be further provided on both sides of the detection assembly 140 . Each third roller group 146 is rotatably connected to the support frame 110 , and serves as a detection reference on both sides of the detection assembly 140 .

[0090] In one embodiment of the present invention, detection assembly 140 further includes a processor and a display assembly 150. The processor is connected to detection element 145 to obtain displacement; display assembly 150 is electrically connected to the processor to display the displacement. In this embodiment of the detector 100, an operator can view the measurement values of detection element 145 via display assembly 150, thereby enabling real-time identification and recording of damaged areas of the contact line or specific locations requiring repair.

[0091] In one embodiment of the present invention, the display assembly 150 is disposed on the support frame 110 . The display assembly 150 is stably connected to the support frame 110 and does not require operator intervention, thereby saving the operator's time and energy.

[0092] The display component 150 can also be electrically connected to the processor through a transmission cable, so that the operator can observe the detection value at a position farther away from the support frame 110, which is convenient for the operator to record. The detector 100 of this embodiment is suitable for working conditions where the contact line is far away from the operator or the operator is not easy to observe closely. Through the display component 150 connected to the transmission cable, the operator can record at any position on the ground, and it is also convenient to perform other work at the same time.

[0093] In one embodiment of the present invention, detection member 145 includes a displacement sensor, the detection end of which is disposed opposite second roller assembly 141 and located on the side of second roller assembly 141 facing away from the contact line. In this embodiment, detector 100 uses the displacement sensor to detect the displacement of second roller assembly 141 in a direction perpendicular to the length of the contact line, thereby determining the amount of unevenness or wear on the current-transmitting working surface.

[0094] In one embodiment of the present invention, the detection member 145 further includes a scale sensor 1451, which includes a scale grating 1452 and a grating reading head. The scale grating 1452 is connected to the transmission assembly 143, and the grating reading head is mounted on the support frame 110 and is used to detect displacement. The detector 100 in this embodiment uses the scale sensor 1451. When the scale grating 1452 moves with the transmission assembly 143, the grating reading head reads the displacement of the transmission assembly 143, i.e., the displacement of the second roller assembly 141, through the scale grating 1452, thereby determining the damage condition of the current transmission working surface.

[0095] In one embodiment of the present invention, the detector 100 further includes an audible and visual alarm electrically connected to a processor. A target displacement is preset within the processor. When the displacement detected by the detection element 145 exceeds the target displacement, the processor controls the audible and visual alarm to activate an alarm. The detector 100 of this embodiment, by providing the audible and visual alarm, can transmit abnormality signals to the operator via sound or light during the detection process, facilitating the operator's recording of damaged areas of the contact line or locating specific locations requiring repair.

[0096] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any modifications or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be based on the scope of protection of the claims.

Claims

1. A detector, characterized in that: The detector is used to monitor the straightness of the contact line, and the detector includes: A support frame, wherein a lifting assembly is provided on the support frame; at least two first roller groups, the two first roller groups being spaced apart and connected to the lifting assembly, the lifting assembly rolling the at least two first roller groups above the contact line under the action of elastic force, and the displacement of the support frame away from or close to the contact line being dynamically adjustable; A detection component is connected to the support frame and is used to detect the current conveying working surface of the contact line that is away from the first roller group.

2. The detector according to claim 1, characterized in that The lifting assembly comprises: a swing rod, one end of which is rotatably connected to the first roller assembly, and the other end of which is rotatably connected to the support frame; A first elastic member, one end of which is connected to one end of the rocker arm, is used to provide a pulling force to the first roller assembly so as to press against the upper portion of the contact line, and the other end of the first elastic member is connected to the support frame.

3. The detector according to claim 2, characterized in that The lifting assembly further includes a first limiting member and a second limiting member. The first limiting member and the second limiting member are both provided on the support frame and located on both sides of the swing arm for limiting the swing angle of the swing arm.

4. The detector according to claim 3, characterized in that The rocker arm has at least one equilibrium position within the range of the swing angle, and at the equilibrium position, the connection positions at both ends of the first elastic member and the rotational connection position between the rocker arm and the support frame are collinear.

5. The detector according to claim 2, characterized in that: The pulling force provided by the first elastic member is F1, and the gravity of the support frame and the detection assembly is W, wherein the component of the pulling force F1 in the vertical direction is greater than the gravity W.

6. The detector according to claim 5, characterized in that: The detection component includes: at least one second roller assembly connected to the support frame and capable of rolling along the current conveying working surface; an elastic component, the elastic component being connected to the second roller group and the support frame respectively, and providing elastic force to support the second roller group to roll on the current conveying working surface; A detection member is provided on the support frame and is connected to the second roller group, and the detection member is used to detect the displacement of the second roller group along a direction perpendicular to the extension direction of the contact line.

7. The detector according to claim 6, characterized in that The elastic component comprises: a transmission assembly, wherein a portion of the transmission assembly is slidably connected to the support frame, and one end of the transmission assembly is connected to the second roller assembly to drive the second roller assembly to move in a direction perpendicular to the extension direction of the contact line; A second elastic member, one end of the second elastic member is connected to the support frame, and the other end is connected to the transmission assembly, and the second elastic member is used to provide a pressing force between the second roller group and the current transmission working surface.

8. The detector according to claim 7, characterized in that: The maximum tension provided by the second elastic member is F2, wherein the component of the tension F1 in the vertical direction is greater than the sum of the gravity W and the maximum tension F2.

9. The detector according to any one of claims 6 to 8, characterized in that: The detection component also includes: at least two third roller groups, the two third roller groups being arranged on the support frame and both capable of rolling along the current conveying working surface; Wherein, the two third roller groups are arranged on both sides of the second roller group along the extension direction of the contact line.

10. The detector according to any one of claims 6 to 8, characterized in that: The detection component also includes: a processor connected to the detection element to obtain the displacement; A display component is electrically connected to the processor and is used to display the displacement.

11. The detector according to claim 10, characterized in that: The display component is arranged on the support frame; or, the display component is electrically connected to the processor via a transmission cable.

12. The detector according to claim 6, characterized in that: The detection member includes a displacement sensor. The detection end of the displacement sensor is arranged opposite to the second roller group and is located on a side of the second roller group away from the contact line.

13. The detector according to claim 7, characterized in that: The detection component also includes a grating scale sensor, which includes a scale grating and a grating reading head. The scale grating is connected to the transmission component, and the grating reading head is arranged on the support frame for detecting the displacement.

14. The detector according to claim 10, characterized in that The detector further comprises an audible and visual alarm, which is electrically connected to the processor; A target displacement is preset in the processor, and when the displacement detected by the detection element exceeds the target displacement, the processor controls the sound and light alarm to start an alarm.

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