Mobile protection device and wheel flaw detection equipment

Abstract

The utility model relates to a mobile protection device and wheel flaw detection equipment. The movable protective device comprises two fixed protective covers and a movable protective cover, each movable protection set can be folded and movably arranged, each movable protection set is provided with an opening position and a closing position, when the movable protection sets are located at the opening positions, the movable protection sets are folded and arranged on the fixed protection covers in a covering mode, so that the wheel flaw detection devices on the bottom frame are exposed, and when the movable protection sets are located at the closing positions, the movable protection sets are folded and arranged on the fixed protection covers in a covering mode. The movable protection group extends and is separated from the fixed protection cover so as to cover the wheel flaw detection device; and the driving structure comprises a driving unit and two transmission assemblies, and the driving unit drives the transmission assemblies to drive the two movable protection sets to move face to face or back to back, so that the movable protection sets are switched between the opening position and the closing position. When the two movable protection devices are closed, the wheel flaw detection device can be covered, so that a protection effect is achieved; and meanwhile, automatic control over the movable protection set can be achieved, so that the number of operators is reduced, and the labor cost is reduced.

Description

Technical Field

[0001] The present application relates to the technical field of wheel flaw detection, and in particular to a mobile protection device and wheel flaw detection equipment. Background Art

[0002] With the development of railway vehicle technology, the heavy load and speed increase of locomotives have further aggravated the fatigue cracking of various types of locomotive wheels, and the frequency of wheel flaw detection needs has increased accordingly. Wheels are key components of vehicles and play an important role in the safety of train operation. Ultrasonic flaw detection and magnetic particle flaw detection, as commonly used non-destructive testing methods in railways, are the main means to detect early cracks in wheels and prevent wheelset failure and damage.

[0003] Wheel flaw detection equipment is usually installed in maintenance trenches, where there is a lot of dust, oil, and water in the storage environment. The wheel flaw detection equipment itself is also a relatively precise machine. The relative position and angle of the probe are very sensitive to the flaw detection performance. Accidental bumps will have a significant impact on the flaw detection operation, making the equipment unable to operate normally and affecting the accuracy of the flaw detection results.

[0004] The current solution is to rely on the trench rail bridge as support, make a dustproof cloth, and make a simple shield on the top of the fixed position of the equipment. When using protective tarpaulin for shielding, manual operation is required, which is labor-intensive, the dustproof effect is average, and it is not collision-proof, especially for precision parts such as probes. A slight collision may reduce the flaw detection effect of the entire equipment, or even make it impossible to operate. Of course, a roller shutter top shield can also be set at the parking position of the equipment. When using a roller shutter top awning, although automation is completed, it only covers the top of the equipment. There are large gaps in various parts of the equipment, and the dustproof effect is average. Summary of the invention

[0005] Based on this, it is necessary to provide a mobile protective device and wheel flaw detection equipment to address the problems of poor protective effect and low degree of automation of current protective tarpaulins and roller-type top awnings. The mobile protective device and wheel flaw detection equipment can expose the wheel flaw detection device when opened and cover the wheel flaw detection device when closed. The mobile protective device has a good protective effect and can protect the wheel flaw detection device well, thereby ensuring the flaw detection effect of the wheel flaw detection device. At the same time, it can also realize automated operation to reduce the number of operators and reduce labor costs.

[0006] A mobile protection device, comprising:

[0007] Two fixed shields are symmetrically arranged at two ends of the chassis of the wheel flaw detection equipment;

[0008] two mobile protection groups, symmetrically arranged between the two fixed protection covers, each of the mobile protection groups is foldable and movable, and the mobile protection groups have an open position and a closed position. When the mobile protection groups are in the open position, the mobile protection groups are folded and covered by the fixed protection covers to expose the wheel flaw detection device on the chassis. When the mobile protection groups are in the closed position, the mobile protection groups are extended and separated from the fixed protection covers to cover the wheel flaw detection device; and

[0009] The driving structure includes a driving unit and two transmission assemblies. The output end of the driving unit is connected to the two transmission assemblies at the same time. The two transmission assemblies are symmetrically arranged on the base frame along the length direction of the base frame. The bottom of the mobile protection group is connected to the transmission assembly. The driving unit drives the transmission assembly to drive the two mobile protection groups to move toward or away from each other, so that the mobile protection group switches between the open position and the closed position.

[0010] In one embodiment of the present application, each of the mobile protection groups includes a plurality of protection covers, and the cross-sectional dimensions of the plurality of protection covers gradually increase from a direction away from the fixed protection cover to a direction close to the fixed protection cover, so that the plurality of protection covers are foldable or extendable;

[0011] When the plurality of protective covers are folded, the protective cover far away from the fixed protective cover can cover the protective cover close to the fixed protective cover.

[0012] In one embodiment of the present application, the protective cover includes a protective cover body and a baffle, wherein the baffle is arranged on one side of the protective cover body, and the baffle has a moving channel, and the protective cover moves relative to the remaining protective covers or the fixed protective cover through the moving channel.

[0013] In one embodiment of the present application, the edges of the fixed shield and the protective shield also have a rib, and the baffle is arranged on the edges of the fixed shield and the protective shield. The rib and the baffle at least partially overlap in the height direction of the protective shield, and when the mobile protective group is extended, the cooperation between the rib and the baffle limits the extension of the protective shield.

[0014] In one embodiment of the present application, the protective cover and the fixed protective cover further have a guide member, and each of the protective cover and the fixed protective cover can be slidably connected through the guide member;

[0015] The guide member is a protrusion of the protective cover and the fixed protective cover and / or, alternatively, the guide member is a guide rail provided on the protective cover and the fixed protective cover.

[0016] In one embodiment of the present application, each of the mobile protection groups includes at least a third shield, a second shield and a first shield, the first shield being slidably connected to the fixed shield and being foldable or stretchable relative to the fixed shield, the second shield being slidably connected to the first shield and being foldable or stretchable relative to the first shield, and the third shield being slidably connected to the third shield and being foldable or stretchable relative to the second shield.

[0017] In one embodiment of the present application, the driving unit includes a driving member and a driving shaft. The driving shaft is arranged at one end of the transmission assembly and is connected to the transmission assembly. The driving member is connected to the driving shaft. The driving member drives the driving shaft to rotate, thereby driving the transmission assembly to drive the mobile protection group to fold or extend.

[0018] In one embodiment of the present application, the driving unit further includes a synchronization shaft, which is arranged at the other end of the transmission assembly and is transmission-connected to the transmission assembly, the transmission assembly includes a driving wheel, a driven wheel, a connecting belt and a fixing component, the driving wheel is arranged on the driving shaft, the driven wheel is arranged on the synchronization shaft, the connecting belt connects the driving wheel and the driven wheel, and the fixing component fixes the connecting belt and the mobile protection group;

[0019] Alternatively, the transmission assembly includes a screw shaft, a screw nut and a fixing component, the screw shaft is transmission-connected to the drive shaft, the screw nut is threadedly connected to the screw shaft, and the fixing component fixes the screw nut and the movable protection group.

[0020] In one embodiment of the present application, the mobile protection device also includes an in-place detection member, the in-place detection member includes a trigger member, a first sensing portion and a second sensing portion, the trigger member is arranged on the mobile protection group, the first sensing portion and the second sensing portion are arranged on the base frame, and the first sensing portion is located in the closed position, and the second sensing portion is located in the open position, and the trigger member can cooperate with the first sensing portion or the second sensing portion to detect that the mobile protection group is in the open position or in the closed position.

[0021] A wheel flaw detection device comprises a chassis, a wheel flaw detection device and a mobile protection device as described in any of the above technical features, wherein the wheel flaw detection device is arranged on the top of the chassis, and the mobile protection device is arranged on the chassis and can open or cover the wheel flaw detection device.

[0022] After adopting the above technical solution, this application has at least the following technical effects:

[0023] The mobile protection device and wheel flaw detection equipment of the present application, in which two fixed shields are symmetrically arranged at both ends of the chassis of the wheel flaw detection equipment, two mobile protection groups are symmetrically located between the two fixed shields, each mobile protection group is arranged corresponding to a fixed shield, and the mobile protection group can be movably arranged on the chassis and can be folded or stretched relative to the fixed shield. The mobile protection group has an open position and a closed position. When the mobile protection group is in the open position, the folding shield of the mobile protection group is arranged on the fixed shield, and at this time, the wheel flaw detection device in the wheel flaw detection equipment is exposed. When the mobile protection group is in the closed position, the mobile protection group stretches and detaches from the fixed shield, and the middle areas of the two mobile protection groups are docked to achieve the protection of the wheel flaw detection device. Moreover, the folding and stretching actions of the mobile protection group are realized by the cooperation of the driving unit of the driving structure and the two transmission components. The mobile protection group is connected to the transmission component, and the driving unit can drive the two transmission components to move at the same time, and then the two transmission components can simultaneously drive the two mobile protection groups to move toward or away from each other, so that the mobile protection group can switch between the open position or the closed position.

[0024] The mobile protection device uses a mobile protection group to achieve the protection of the wheel flaw detection device. When the two mobile protection groups are in the closed position, the two mobile protection devices extend and can cover the wheel flaw detection device to play a protective role, thereby realizing the protection function of the wheel flaw detection device when parked, preventing oil pollution, dust, and collision. When the two mobile protection groups are in the open position, the two mobile protection devices fold and can expose the wheel flaw detection device, and the wheel flaw detection device can perform flaw detection operations. The mobile protection device has a good protection effect and can provide good protection for the wheel flaw detection device, thereby ensuring the flaw detection effect of the wheel flaw detection device. At the same time, a drive unit is used to drive the two transmission components to synchronously drive the two mobile protection groups to move toward or away from each other, so that the automatic control of the mobile protection group can be realized, so as to reduce the number of operators and reduce labor costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] FIG. 1 is a schematic diagram of a mobile protection device when it is opened according to an embodiment of the present application.

[0026] FIG. 2 is a schematic diagram of the mobile protection device shown in FIG. 1 when it is closed.

[0027] FIG. 3 is a perspective view of a wheel flaw detection device installed in the mobile protection device shown in FIG. 1 .

[0028] FIG. 4 is a front view of the mobile protection device shown in FIG. 3 .

[0029] FIG. 5 is a schematic diagram of a wheel flaw detection device installed in the mobile protection device shown in FIG. 2 .

[0030] FIG. 6 is a schematic diagram of a wheel flaw detection device provided in the mobile protection device shown in FIG. 1 .

[0031] FIG. 7 is a top view of the mobile protection device shown in FIG. 1 .

[0032] FIG. 8 is a front view of the mobile protection device shown in FIG. 1 .

[0033] FIG. 9 is a side view of the mobile protection device shown in FIG. 1 .

[0034] FIG. 10 is a schematic diagram of a driving structure in the mobile protection device shown in FIG. 1 .

[0035] FIG. 11 is a partial front view of the mobile protection device shown in FIG. 10 .

[0036] Among them: 100, mobile protection device; 110, fixed shield; 120, mobile protection group; 121, shield; 122, first shield; 123, second shield; 124, third shield; 125, through hole; 130, drive structure; 131, drive unit; 1311, drive member; 1312, drive shaft; 1313, synchronization shaft; 132, transmission assembly; 1321, connecting belt; 1322, fixed component; 200, chassis; 300, wheel flaw detection device. DETAILED DESCRIPTION

[0037] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present application, so the present application is not limited by the specific embodiments disclosed below.

[0038] In the description of the present application, it should be understood that if the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. appear, the orientation or position relationship indicated by these terms is based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application.

[0039] In addition, if the terms "first" or "second" appear, these terms are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of this application, if the term "plurality" appears, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0040] In this application, unless otherwise clearly specified and limited, if the terms "installed", "connected", "connected", "fixed" and the like appear, these terms should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to the specific circumstances.

[0041] In the present application, unless otherwise clearly specified and limited, if there is a description that a first feature is "on" or "below" a second feature, etc., or the like, it may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "above" and "above" the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. The first feature being "below", "below" and "below" the second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0042] It should be noted that if an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. If an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. If any, the terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used in this application are for illustrative purposes only and do not represent the only implementation method.

[0043] Referring to Figures 1 to 5, the present application provides a mobile protection device 100. Figure 1 is a schematic diagram of a mobile protection device 100 of an embodiment of the present application when it is open, Figure 2 is a schematic diagram of the mobile protection device 100 shown in Figure 1 when it is closed, Figure 3 is a stereoscopic diagram of a wheel flaw detection device 300 installed in the mobile protection device 100 shown in Figure 1, Figure 4 is a front view of the mobile protection device 100 shown in Figure 3, and Figure 5 is a schematic diagram of a wheel flaw detection device 300 installed in the mobile protection device 100 shown in Figure 2.

[0044] The mobile protection device 100 is applied to the wheel flaw detection equipment, and is used to protect the wheel flaw detection device 300 in the wheel flaw detection equipment, so as to ensure the protective effect of the wheel flaw detection device 300 when it is parked. When the wheel flaw detection device 300 is in use, the mobile protection device 100 is opened, the wheel flaw detection device 300 is exposed, and the wheel flaw detection device 300 can perform flaw detection operations; when the wheel flaw detection device 300 is parked, the mobile protection device 100 is closed to protect the wheel flaw detection device 300. Of course, in other embodiments of the present application, the mobile protection device 100 can also protect other types of equipment. In the present application, only the protection of the wheel flaw detection device 300 by the mobile protection device 100 is taken as an example for description.

[0045] It is understandable that the dust protection of the current wheel flaw detection device is usually achieved through a protective tarpaulin or a roller-type top awning. The protection effect of these two protection methods is poor and they are prone to bumps. At the same time, the protective tarpaulin requires manual operation. To this end, the present application provides a new type of mobile protection device 100, which can expose the wheel flaw detection device 300 when opened and cover the wheel flaw detection device 300 when closed. It has a good protection effect and can well protect the wheel flaw detection device 300, thereby ensuring the flaw detection effect of the wheel flaw detection device 300. At the same time, it can also realize automated operation to reduce the number of operators and reduce labor costs. The specific structure of the mobile protection device 100 in one embodiment is introduced below.

[0046] Referring to FIGS. 1 to 10 , in one embodiment, the mobile protection device 100 includes two fixed shields 110, two mobile protection groups 120, and a driving structure 130. The two fixed shields 110 are symmetrically arranged at both ends of the chassis 200 of the wheel flaw detection device. The two mobile protection groups 120 are symmetrically arranged between the two fixed shields 110. Each mobile protection group 120 is foldable and movable. The mobile protection group 120 has an open position and a closed position. When the mobile protection group 120 is in the open position, the mobile protection group 120 is folded and covered by the fixed shield 110, so that the wheel flaw detection device 300 on the chassis 200 is exposed. When the mobile protection group 120 is in the closed position, the mobile protection group 120 is stretched and separated from the fixed shield 110 to cover the wheel flaw detection device 300.

[0047] The driving structure 130 includes a driving unit 131 and two transmission assemblies 132. The output end of the driving unit 131 is connected to the two transmission assemblies 132 at the same time. The two transmission assemblies 132 are symmetrically arranged on the base frame 200 along the length direction of the base frame 200. The bottom of the mobile protection group 120 is connected to the transmission assembly 132. The driving unit 131 drives the transmission assembly 132 to drive the two mobile protection groups 120 to move toward or away from each other, so that the mobile protection group 120 switches between the open position and the closed position. FIG. 6 is a schematic diagram of the wheel flaw detection device 300 set in the mobile protection device 100 shown in FIG. 1, FIG. 7 is a top view of the mobile protection device 100 shown in FIG. 1, FIG. 8 is a front view of the mobile protection device 100 shown in FIG. 1, FIG. 9 is a side view of the mobile protection device 100 shown in FIG. 1, and FIG. 10 is a schematic diagram of the driving structure 130 in the mobile protection device 100 shown in FIG. 1.

[0048] It can be understood that the wheel flaw detection equipment also includes a chassis 200 and a wheel flaw detection device 300. The chassis 200 is a support frame for the wheel flaw detection equipment. The wheel flaw detection device 300 is arranged on the chassis 200. The chassis 200 is arranged in a maintenance trench. The chassis 200 can support the wheel flaw detection device 300 from the bottom surface of the maintenance trench by a certain height, so that the wheel flaw detection device 300 can contact the wheel and facilitate the flaw detection operation. The mobile protection device 100 of the present application is arranged on the chassis 200 and can move relative to the chassis 200. When the mobile protection device 100 is opened, the wheel flaw detection device 300 is exposed, and the wheel flaw detection device 300 can perform flaw detection operations on the wheel. When the mobile protection device 100 is closed, the mobile protection device 100 covers the wheel flaw detection device 300 to protect the wheel flaw detection device 300.

[0049] Specifically, the mobile protection device 100 includes two fixed shields 110 and two mobile protection groups 120. The mobile protection device 100 extends in the length direction. As shown in FIG1 , the mobile protection device 100 extends in the left-right direction. The width direction of the mobile protection device 100 is the front-to-back direction, and the vertical direction of the mobile protection device 100 is the height direction. The two fixed shields 110 are symmetrically arranged at the left and right ends of the base frame 200, and the two mobile protection groups 120 are movably arranged between the two fixed shields 110, and each mobile protection group 120 is arranged corresponding to one fixed shield 110.

[0050] The mobile protection group 120 can be folded and stretched when moving. When the mobile protection group 120 moves toward the fixed protective cover 110, the mobile protection group 120 gradually folds, and finally the mobile protection group 120 covers the fixed protective cover 110. At this time, the mobile protection group 120 is in an open position, and the wheel flaw detection device 300 is exposed. When the mobile protection group 120 is separated from the fixed protective cover 110 and moves toward the middle area of ​​the chassis 200, the mobile protection group 120 gradually stretches, and finally the mobile protection group 120 gradually flattens. At this time, the mobile protection group 120 is in a closed position, and the mobile protection group 120 can cover the wheel flaw detection device 300. After the mobile protection group 120 covers the wheel flaw detection device 300, it can protect the wheel flaw detection device 300 and play the role of dustproof, waterproof and collision-proof.

[0051] The two mobile protection groups 120 can move toward each other or move away from each other, and the mobile protection groups 120 can be folded or stretched during the movement. That is to say, the two mobile protection groups 120 can make the mobile protection device 100 form a split structure, which can facilitate the exposure of the wheel flaw detection device 300, and can also facilitate the disassembly and maintenance of the equipment. When the two mobile protection groups 120 move toward each other, the two mobile protection groups 120 move from the direction of the fixed shield 110 to the middle area of ​​the chassis 200, and the two mobile protection groups 120 gradually stretch. When the two mobile protection groups 120 come into contact, the two mobile protection groups 120 are fully stretched and moved to the closed position. At this time, the two fixed shields 110 and the two mobile protection groups 120 completely cover the wheel flaw detection device 300, as shown in Figures 3 to 6. When the two mobile protection groups 120 move away from each other, the two mobile protection groups 120 move toward the fixed shield 110 at the same time, and the two shields 121 are gradually folded. When the two mobile protection groups 120 are sleeved on the fixed shield 110 , the two mobile protection groups 120 are completely folded and moved to the open position. The two mobile protection groups 120 are completely opened and the wheel flaw detection device 300 is completely exposed, as shown in FIGS. 3 to 6 .

[0052] In FIG. 1 and FIG. 6 to FIG. 8, one of the two mobile protection groups 120 is in an open position and the other is in a closed position, so as to better understand the structure of the mobile protection group 120. It is worth noting that the two mobile protection groups 120 have the same structure but are symmetrically arranged, and the movement principle is also the same, but the movement directions of the two are opposite. In the following text, only the mobile protection group 120 on the left is used as an example for explanation. Moreover, when the mobile protection group 120 is in the open position, the mobile protection group 120 is in an open state, and when the mobile protection group 120 is in the closed position, the mobile protection group 120 is in a closed state. When the mobile protection group 120 moves from the open position to the closed position, the mobile protection group 120 is in a closing action, and when the mobile protection group 120 moves from the closed position to the open position, the mobile protection group 120 is in an opening action.

[0053] In order to realize the automatic opening and closing of the mobile protection group 120, the mobile protection device 100 of the present application also includes a driving structure 130 to realize the automatic driving of the mobile protection group 120. Specifically, the two transmission assemblies 132 are symmetrically arranged along the width direction of the base frame 200, that is, the two transmission assemblies 132 are arranged on the front and rear sides of the base frame 200, and the driving unit 131 is located at one end of the transmission assembly 132 along the width direction of the base frame 200. The driving unit 131 is connected to the two transmission assemblies 132 in transmission connection, and the transmission assembly 132 is connected to the mobile protection group 120. When the mobile protection group 120 needs to be opened or closed, the driving unit 131 drives the transmission assembly 132 to move, and when the transmission assembly 132 moves, it can drive the mobile protection group 120 to move along the base frame 200, so that the mobile protection group 120 is opened or closed.

[0054] When the mobile protection group 120 is driven to move by the driving unit 131 and the transmission assembly 132, the mobile protection group 120 can be opened or closed without manual operation by an operator, thereby improving the degree of automation when the mobile protection device 100 is used, and at the same time, the number of operators can be reduced to reduce labor costs. Moreover, after the two transmission assemblies 132 are symmetrically arranged, the two transmission assemblies 132 can connect the mobile protection group 120 on both sides of the width direction of the mobile protection group 120, thereby avoiding the situation where the mobile protection group 120 is deflected due to uneven force during movement, and ensuring the accuracy of the movement of the mobile protection group 120.

[0055] The mobile protection device 100 of the above embodiment uses a mobile protection group 120 to realize the protection of the wheel flaw detection device 300. When the two mobile protection groups 120 are in the closed position, the two mobile protection devices 100 are extended and can cover the wheel flaw detection device 300 to play a protective role, realizing the protection function of the wheel flaw detection device 300 when parked, such as oil pollution, dust and collision. When the two mobile protection groups 120 are in the open position, the two mobile protection devices 100 are folded and can expose the wheel flaw detection device 300, and the wheel flaw detection device 300 can perform flaw detection operations. The mobile protection device 100 has a good protection effect and can well protect the wheel flaw detection device 300, thereby ensuring the flaw detection effect of the wheel flaw detection device 300. At the same time, the drive unit 131 drives the two transmission components 132 to synchronously drive the two mobile protection groups 120 to move toward or away from each other, so as to realize the automatic control of the mobile protection group 120, so as to reduce the number of operators and reduce labor costs.

[0056] It is worth noting that when describing the specific structure of the mobile protection group 120 below, the mobile protection group 120 on the left is taken as an example. The mobile protection group 120 on the right is symmetrically arranged with the mobile protection group 120 on the left, and will not be repeated below.

[0057] 1 to 8, in one embodiment, each mobile protection group 120 includes a plurality of protection covers 121, and the cross-sectional dimensions of the plurality of protection covers 121 gradually increase from a direction away from the fixed protection cover 110 to a direction close to the fixed protection cover 110, so that the plurality of protection covers 121 can be folded or stretched. When the plurality of protection covers 121 are folded, the protection covers 121 away from the fixed protection cover 110 can cover the protection covers 121 close to the fixed protection cover 110.

[0058] Multiple protective covers 121 can be movably connected in sequence. Taking the mobile protective group 120 on the left as an example, the longitudinal cross-sectional dimensions of the multiple protective covers 121 gradually increase from left to right, and the longitudinal cross-sectional dimension of the fixed protective cover 110 is smaller than the longitudinal cross-sectional dimension of the protective cover 121 adjacent to it, and the longitudinal cross-sectional dimension of the right protective cover 121 is larger than the longitudinal cross-sectional dimension of the left protective cover. In this way, the protective cover 121 on the right can cover the protective cover 121 on the left.

[0059] When the mobile protection group 120 is opened, the driving unit 131 drives the transmission assembly 132 to drive the right protective cover 121 to move to the left, so that the right protective cover 121 can cover the left protective cover 121, thereby realizing the folding of the mobile protection group 120. The mobile protection group 120 continues to move until the protective cover 121 covers the fixed protective cover 110, which can reduce the space occupied by the protective cover 121, so that the wheel flaw detection device 300 is completely exposed, which is convenient for the later flaw detection operation.

[0060] When the mobile protection group 120 is closed, the driving unit 131 drives the transmission assembly 132 to drive the right side protection cover 121 to move to the right, so that the right side protection cover 121 can be separated from the left side protection cover 121, and the mobile protection group 120 is deployed. The mobile protection group 120 continues to move until the protection cover 121 is completely separated from the fixed protection cover 110, so that each protection cover 121 is completely deployed and covers the wheel flaw detection device 300, so that the wheel flaw detection device 300 is protected.

[0061] The number of protective covers 121 is at least two, and after at least two protective covers 121 are folded to the fixed protective cover 110, they can form a structural form of at least three layers, so as to reduce the size of the space occupied by the mobile protective group 120 after being folded, so as to expose the wheel flaw detection device 300 as much as possible, and avoid affecting the flaw detection operation of the wheel flaw detection device 300. Exemplarily, the number of protective covers 121 is three, and after the three protective covers 121 are covered with the fixed protective cover 110, a structural form of four layers is formed. Of course, in other embodiments of the present application, the number of protective covers 121 can also be two or more. Optionally, the length dimensions of each protective cover 121 are the same or different.

[0062] Referring to Figures 1 to 9, in one embodiment, each mobile protection group 120 includes at least a third shield 124, a second shield 123 and a first shield 122. The first shield 122 can be slidably connected to the fixed shield 110 and can be folded or stretched relative to the fixed shield 110. The second shield 123 can be slidably connected to the first shield 122 and can be folded or stretched relative to the first shield 122. The third shield 124 can be slidably connected to the third shield 124 and can be folded or stretched relative to the second shield 123.

[0063] In this embodiment, the number of protective covers 121 is three, namely the third protective cover 124, the second protective cover 123 and the first protective cover 122. In other embodiments of the present application, the number of protective covers 121 can be more, including a fourth protective cover, etc. The present application only takes the number of three protective covers 121 as an example for explanation. The longitudinal section size of the first protective cover 122 is larger than the longitudinal section size of the fixed protective cover 110 and smaller than the longitudinal section size of the second protective cover 123. The longitudinal section size of the second protective cover 123 is smaller than the longitudinal section size of the third protective cover 124.

[0064] When the mobile protection group 120 on the left is opened, the fixed shield 110, the first shield 122, the second shield 123 and the third shield 124 are deployed in sequence; when the mobile protection group 120 on the left is closed, the third shield 124 covers the second shield 123, the second shield 123 covers the first shield 122, and the first shield 122 covers the fixed shield 110. Moreover, the third shield 124 is connected to the transmission assembly 132. When the transmission assembly 132 drives the third shield 124 to be closed, the transmission assembly 132 drags the third shield 124 to move to the right, the third shield 124 gradually separates from the second shield 123, and drags the second shield 123 to move, the second shield 123 gradually separates from the first shield 122, and drags the first shield 122 to move, and then the first shield 122 gradually separates from the fixed shield 110, and the mobile protection group 120 is completely closed to cover the wheel flaw detection device 300. When the transmission assembly 132 drives the third protective cover 124 to open, the transmission assembly 132 drags the third protective cover 124 to move to the left, the third protective cover 124 gradually covers the second protective cover 123, and drags the second protective cover 123 to move, the second protective cover 123 gradually covers the first protective cover 122, and drags the first protective cover 122 to move, and then the first protective cover 122 gradually covers the fixed protective cover 110, and finally the wheel flaw detection device 300 is exposed, and the movable protective cover 121 is fully opened.

[0065] In one embodiment, the protective cover 121 includes a protective cover body and a baffle, which is arranged on one side of the protective cover body. The baffle has a moving channel, and the protective cover 121 moves relative to the other protective covers 121 or the fixed protective cover 110 through the moving channel. The baffle is arranged at the left end of the protective cover body. The protective cover body is the main structure of the protective cover 121, and the protective cover body is arched in the front-back direction and arranged on the base frame 200. The baffle is arranged on the left end face of the protective cover body, and the baffle is the flange on the left side of the protective cover body, and the baffle extends inward.

[0066] Since the longitudinal cross-sectional dimensions of each protective cover 121 and the fixed protective cover 110 are different, there will be a hole at the unfolded connection after the protective cover 121 is unfolded, causing dust and the like to enter the protective cover 121, affecting the flaw detection effect of the wheel flaw detection device 300. Therefore, the present application sets a baffle on the side of the protective cover body, and the baffle is set through along the moving direction of the protective cover 121 to form a moving channel, and the protective cover 121 on the right side can cover or detach from the protective cover 121 or the fixed protective cover 110 on the left side through the moving channel.

[0067] When the multiple protective covers 121 are deployed, the protective cover 121 on the right side can be separated from the protective cover 121 on the left side or the fixed protective cover 110 through the moving channel, and contact the outer wall of the protective cover 121 on the left side or the fixed protective cover 110 through the baffle. In this way, the baffle can ensure the sealing between adjacent protective covers 121 and between the protective cover 121 and the fixed protective cover 110, thereby playing a protective role.

[0068] In one embodiment, the edges of the fixed shield 110 and the protective shield 121 also have a rib, and a baffle is arranged on the edges of the fixed shield 110 and the protective shield 121. The rib and the baffle overlap at least partially in the height direction of the protective shield 121. When the mobile protective group 120 is extended, the cooperation between the rib and the baffle limits the extension of the protective shield 121. The rib is arranged on the right edge of the fixed shield 110 and the protective shield 121, and the rib and the baffle overlap in the height direction. When the protective shield 121 is unfolded, the protective shield 121 on the right side indicates the degree of unfolding of the protective shield 121 through the cooperation between the baffle and the rib, and avoids the separation of the protective shields 121, that is, the cooperation between the rib and the baffle can limit the unfolding size of the protective shield 121, avoid excessive movement of the protective shield 121, and ensure that the protective shield 121 can accurately move to the closed position.

[0069] Referring to FIGS. 1 to 9 , in one embodiment, the protective cover 121 and the fixed protective cover 110 further have guide members, and each protective cover 121 and the fixed protective cover 110 are slidably connected through the guide members. The guide members are arranged between adjacent protective covers 121 and between the protective cover 121 and the fixed protective cover 110. When the transmission assembly 132 drives the protective cover 121 to move, the protective cover 121 can move relative to the adjacent protective cover 121 and the fixed protective cover 110 through the guide members to ensure that the moving trajectory of the protective cover 121 is accurate, reduce the shaking of the protective cover 121 when moving, and thus realize the accurate opening or closing of the protective cover 121.

[0070] It is worth noting that the structural form of the guide member is not limited in principle, as long as it can achieve the guiding cooperation of the movement of the protective cover 121. Exemplarily, the guide member is the guide surface of the protective cover 121 and the fixed protective cover 110. That is, the inner wall of the protective cover 121 on the right has a first guide surface, and the outer wall of the protective cover 121 or the fixed protective cover 110 on the left has a second guide surface, and the first guide surface is in contact with the second guide surface.

[0071] Of course, in other embodiments of the present application, the guide member is a protrusion of the protective cover 121 and the fixed protective cover 110, and the protrusion can be slidably installed in the protective cover 121 on the right side; or, the guide member is a guide rail arranged on the protective cover 121 and the fixed protective cover 110, and the guide rail is slidably connected to the inner wall of the protective cover 121 on the right side.

[0072] In one embodiment, the end of one of the mobile protection groups 120 also has a locking piece, and the end of the other mobile protection group 120 has a matching piece. When the two mobile protection groups 120 are deployed, the protective covers 121 of the two mobile protection groups 120 are matched, and the locking piece and the matching piece are reliably locked to avoid accidental opening. When it is necessary to open, a force is applied to separate the locking piece and the matching piece. Optionally, the locking piece and the matching piece are a matching structure of a protrusion and a groove.

[0073] Referring to Figures 3 to 5, in one embodiment, the surface of the mobile protection group 120 away from the fixed protective cover 110 also has a through hole 125 that is set through. After the mobile protection group 120 is closed, the brush of the wheel flaw detection device 300 is exposed through the through hole 125. Optionally, the shape of the protective cover 121 is consistent with the appearance profile of the wheel flaw detection device 300, and the minimum cross-sectional size of the protective cover 121 is slightly larger than the cross-sectional size of the wheel flaw detection device 300. In other words, the protective cover 121 adopts the contour design of the wheel flaw detection device 300, which can meet the protection requirements while reducing the volume of the protective cover 121 as much as possible, thereby reducing the space size occupied by the protective cover 121, which is convenient for the protective cover 121 to be used in the maintenance trench.

[0074] 10 and 11 , in one embodiment, the driving unit 131 includes a driving member 1311 and a driving shaft 1312. The driving shaft 1312 is disposed at one end of the transmission assembly 132 and is transmission-connected to the transmission assembly 132. The driving member 1311 is connected to the driving shaft 1312. The driving member 1311 drives the driving shaft 1312 to rotate, thereby driving the transmission assembly 132 to drive the mobile protection group 120 to fold or extend. FIG11 is a partial front view of the mobile protection device 100 shown in FIG10 .

[0075] The driving member 1311 is the power source of the driving unit 131. The driving member 1311 is arranged on the bracket. The output end of the driving member 1311 is connected to the driving shaft 1312. The driving shaft 1312 is a common shaft and is rotatably arranged on the base frame 200 along the width direction of the base frame 200. The driving shaft 1312 is connected to the two transmission components 132. When the driving member 1311 is working, the driving member 1311 can control the driving shaft 1312 to rotate, and then the driving shaft 1312 drives the transmission component 132 to move. When the transmission component 132 moves, it can drive the protective cover 121 to move, so as to realize the unfolding and folding of the protective cover 121. When the driving member 1311 rotates forward, the driving member 1311 drives the protective cover 121 to open through the driving shaft 1312. When the driving member 1311 rotates reversely, the driving member 1311 drives the protective cover 121 to close through the driving shaft 1312. Optionally, the driving member 1311 is a motor.

[0076] Referring to Figures 10 and 11, in one embodiment of the present application, the driving unit 131 also includes a synchronization shaft 1313, which is arranged at the other end of the transmission assembly 132 and is transmission-connected to the transmission assembly 132. The transmission assembly 132 includes a driving wheel, a driven wheel, a connecting belt 1321 and a fixing component 1322. The driving wheel is arranged on the driving shaft 1312, the driven wheel is arranged on the synchronization shaft 1313, the connecting belt 1321 connects the driving wheel and the driven wheel, and the fixing component 1322 fixes the mobile protection group 120 and the connecting belt 1321.

[0077] The synchronization shaft 1313 is rotatably disposed at the right end of the base frame 200, the driving shaft 1312 and the synchronization shaft 1313 are respectively located at the two ends of the connecting belt 1321, the driving wheel is disposed at the end of the driving shaft 1312, and the driven wheel is disposed at the end of the synchronization shaft 1313. The connecting belt 1321 is sleeved on the driving wheel and the driven wheel. When the driving shaft 1312 rotates, the driving shaft 1312 drives the driving wheel to rotate synchronously, the driving wheel drives the connecting belt 1321 to rotate, and then the connecting belt 1321 drives the driven wheel to rotate. When the connecting belt 1321 rotates, the connecting belt 1321 can drive the fixed component 1322 thereon to move, and then the connection to be passed through the fixed component 1322 can drive the protective cover 121 to move, thereby realizing the opening or closing of the protective cover 121.

[0078] Optionally, the fixing member 1322 is a fixing block, etc. Optionally, the connecting belt 1321 is a chain, and the driving wheel and the driven wheel are sprockets. Optionally, the connecting belt 1321 is a synchronous belt, and the driving wheel and the driven wheel are pulleys. Of course, in other embodiments of the present application, the connection belt 1321 and the driving wheel and the driven wheel can also be a rope transmission structure, etc.

[0079] In another embodiment of the present application, the transmission assembly 132 includes a screw shaft, a screw nut and a fixed component, the screw shaft is connected to the drive shaft 1312, the screw nut is threaded to the screw shaft, and the fixed component is fixedly connected to the screw nut and the movable protection group 120. When the drive shaft 1312 rotates, the drive shaft 1312 can drive the screw shaft to rotate through the bevel gear transmission member, and when the screw shaft rotates, it can drive the screw nut thereon to move, and then the screw nut drives the protective cover 121 to move through the fixed component to realize the opening or closing of the protective cover 121. Optionally, the transmission assembly 132 also includes a guide rod, which guides the movement of the screw nut.

[0080] In one embodiment, the mobile protection device 100 further includes a position detection member. The position detection member can sense the state of the protective cover 121 in the closed position and the open position to determine whether the protective cover 121 has moved into position, thereby ensuring that the state of the protective cover 121 is controllable. Optionally, the position detection member is a proximity switch. Of course, in other embodiments of the present application, the position detection member can also be a position sensor or other components capable of realizing position detection.

[0081] In one embodiment, the in-position detection member includes a touch member, a first sensing portion, and a second sensing portion. The touch member is disposed on the movable protection group 120. The first sensing portion and the second sensing portion are disposed on the base frame 200. The first sensing portion is located in a closed position, and the second sensing portion is located in an open position. The touch member can cooperate with the first sensing portion or the second sensing portion to detect whether the movable protection group 120 is in an open position or in a closed position.

[0082] The trigger is arranged at the bottom of the rightmost protective cover 121. When the trigger touches and cooperates with the first sensing part, the first sensing part detects the trigger, indicating that the protective cover 121 is in the closed position, and the protective cover 121 completely covers the wheel flaw detection device 300 to protect the wheel flaw detection device 300. When the trigger touches and cooperates with the second sensing part, the second sensing part detects the trigger, indicating that the protective cover 121 is in the open position. At this time, the wheel flaw detection device 300 is completely exposed, and the flaw detection operation can be performed.

[0083] The mobile protection device 100 of the present application, when the wheel flaw detection device 300 is parked, the protective cover 121 is closed to protect the wheel flaw detection device 300. When the wheel flaw detection device 300 performs flaw detection, the protective cover 121 is opened and covered on the fixed protective cover 110, and the wheel flaw detection device 300 is exposed. After the protective cover 121 is opened, it will not affect the flaw detection process of the wheel flaw detection device 300, and avoid the situation where the wheel flaw detection device 300 contacts and interferes with the protective cover 121. The protective cover 121 can be switched between an open state and a closed state through the driving structure 130. Moreover, after the wheel flaw detection device 300 completes the flaw detection, the protective cover 121 can be closed only after the various actuators of the wheel flaw detection device 300 are reset. When the protective cover 121 is closed, the entire wheel flaw detection device 300 can be covered, thereby covering the actuators and electrical components of the wheel flaw detection device 300, and the wheel flaw detection device 300 can be well protected.

[0084] When the driving structure 130 drives the protective cover 121 to fold to both sides at the same time, the transmission assembly 132 drives the third protective cover 124 to move, the third protective cover 124 drives the second protective cover 123 to move, the second protective cover 123 drives the first protective cover 122 to move, and then the third protective cover 124, the second protective cover 123 and the first protective cover 122 are layered on the fixed protective cover 110, and finally the wheel flaw detection device 300 is exposed. At this time, the protective cover 121 is fully opened. When the driving structure 130 drives the protective cover 121 to unfold to both sides, the transmission assembly 132 drives the third protective cover 124 to move, the third protective cover 124 drives the second protective cover 123 to move, the second protective cover 123 drives the first protective cover 122 to move, and then the third protective cover 124, the second protective cover 123 and the first protective cover 122 are unfolded in sequence to cover the wheel flaw detection device 300, so as to realize the protection of the wheel flaw detection device 300.

[0085] The present application also provides a wheel flaw detection device, comprising a chassis 200, a wheel flaw detection device 300, and a mobile protection device 100 as in any of the above embodiments, wherein the wheel flaw detection device 300 is arranged on the top of the chassis 200, and the mobile protection device 100 is arranged on the chassis 200, and can open or cover the wheel flaw detection device 300. After the wheel flaw detection device of the present application adopts the mobile protection device 100 of the above embodiment, it can well protect the parked wheel flaw detection device 300 to ensure the flaw detection effect of the wheel flaw detection device 300.

[0086] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0087] The above-described embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be construed as limiting the scope of the patent application. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent application shall be subject to the attached claims.

Claims

1. A mobile protection device, characterized in that: include: Two fixed shields are symmetrically arranged at two ends of the chassis of the wheel flaw detection equipment; Two mobile protection groups are symmetrically arranged between the two fixed protection covers, each of the mobile protection groups is foldable and movable, and the mobile protection groups have an open position and a closed position. When the mobile protection group is in the open position, the mobile protection group is folded and covered on the fixed protection cover to expose the wheel flaw detection device on the chassis. When the mobile protection group is in the closed position, the mobile protection group is extended and separated from the fixed protection cover to cover the wheel flaw detection device. as well as The driving structure includes a driving unit and two transmission assemblies. The output end of the driving unit is connected to the two transmission assemblies at the same time. The two transmission assemblies are symmetrically arranged on the base frame along the length direction of the base frame. The bottom of the mobile protection group is connected to the transmission assembly. The driving unit drives the transmission assembly to drive the two mobile protection groups to move toward or away from each other, so that the mobile protection group switches between the open position and the closed position.

2. The mobile protection device according to claim 1, characterized in that: Each of the mobile protection groups includes a plurality of protection covers, and the cross-sectional dimensions of the plurality of protection covers gradually increase from a direction away from the fixed protection cover to a direction close to the fixed protection cover, so that the plurality of protection covers can be folded or stretched; When the plurality of protective covers are folded, the protective cover far away from the fixed protective cover can cover the protective cover close to the fixed protective cover.

3. The mobile protection device according to claim 2, characterized in that: The protective cover comprises a protective cover body and a baffle, wherein the baffle is arranged on one side of the protective cover body and has a moving channel, and the protective cover moves relative to the remaining protective covers or the fixed protective cover through the moving channel.

4. The mobile protection device according to claim 3, characterized in that: The edges of the fixed shield and the protective shield also have ribs, and the baffle is arranged on the edges of the fixed shield and the protective shield. The ribs and the baffle at least partially overlap in the height direction of the protective shield. When the mobile protection group is extended, the cooperation between the ribs and the baffle limits the extension of the protective shield.

5. The mobile protection device according to claim 2, characterized in that: The protective cover and the fixed protective cover also have a guide member, and each of the protective cover and the fixed protective cover can be slidably connected through the guide member; The guide member is a protrusion of the protective cover and the fixed protective cover and / or, alternatively, the guide member is a guide rail provided on the protective cover and the fixed protective cover.

6. The mobile protection device according to any one of claims 1 to 5, characterized in that: Each of the mobile protection groups includes at least a third shield, a second shield and a first shield. The first shield can be slidably connected to the fixed shield and can be folded or stretched relative to the fixed shield. The second shield can be slidably connected to the first shield and can be folded or stretched relative to the first shield. The third shield can be slidably connected to the third shield and can be folded or stretched relative to the second shield.

7. The mobile protection device according to any one of claims 1 to 5, characterized in that: The driving unit includes a driving member and a driving shaft. The driving shaft is arranged at one end of the transmission assembly and is connected to the transmission assembly. The driving member is connected to the driving shaft. The driving member drives the driving shaft to rotate, thereby driving the transmission assembly to drive the mobile protection group to fold or extend.

8. The mobile protection device according to claim 7, characterized in that: The driving unit further includes a synchronous shaft, which is arranged at the other end of the transmission assembly and is in transmission connection with the transmission assembly, the transmission assembly includes a driving wheel, a driven wheel, a connecting belt and a fixing component, the driving wheel is arranged on the driving shaft, the driven wheel is arranged on the synchronous shaft, the connecting belt connects the driving wheel and the driven wheel, and the fixing component fixedly connects the connecting belt and the mobile protection group; Alternatively, the transmission assembly includes a screw shaft, a screw nut and a fixing component, the screw shaft is transmission-connected to the drive shaft, the screw nut is threadedly connected to the screw shaft, and the fixing component fixes the screw nut and the movable protection group.

9. The mobile protection device according to any one of claims 1 to 5, characterized in that: The mobile protection device also includes an in-place detection member, which includes a touch member, a first sensing portion and a second sensing portion. The touch member is arranged on the mobile protection group, the first sensing portion and the second sensing portion are arranged on the base frame, and the first sensing portion is located in the closed position, and the second sensing portion is located in the open position. The touch member can cooperate with the first sensing portion or the second sensing portion to detect whether the mobile protection group is in the open position or in the closed position.

10. A wheel flaw detection device, characterized in that: It comprises a chassis, a wheel flaw detection device and a mobile protection device as described in any one of claims 1 to 9, wherein the wheel flaw detection device is arranged on the top of the chassis, and the mobile protection device is arranged on the chassis and can open or cover the wheel flaw detection device.

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