Disclosure of Invention
In view of the foregoing, it is desirable to provide a frame structure for a wheelbase adjustable process truck and a wheelbase adjustment assembly therefor.
The wheelbase adjusting assembly of the framework structure comprises a first adjusting piece and a first connecting piece, wherein the first adjusting piece is arranged on a framework body, and the first connecting piece is used for installing travelling wheels; the first adjusting piece is provided with at least two first adjusting positions which are arranged at intervals along the moving direction of the travelling wheel, the first connecting piece is provided with a first mounting position, and the first connecting piece is movable relative to the first adjusting piece, so that the first mounting position can be correspondingly connected with at least one first adjusting position.
When the bogie is used, the wheelbase of the process bogie needs to be adjusted according to the model and the size of the ground bogie. The first connecting piece is adjusted to move relative to the first adjusting piece along the moving direction of the travelling wheel. Because the walking wheel is installed on first connecting piece, and at least two wheelbase adjusting part set up along the direction of movement interval of walking wheel, and then can realize the distance adjustment between the first connecting piece that sets up along the direction of movement of walking wheel, realize the regulation of the wheelbase of at least two walking wheels for the wheelbase between the walking wheel can adapt to ground frame car machine, makes things convenient for subway vehicle automobile body part to be fixed in on the framework structure.
In one embodiment, the device further comprises a first locking member, at least two first adjusting holes are formed in the first adjusting position at intervals, at least two first mounting holes are formed in the first mounting position at intervals, the first mounting holes can correspond to the first adjusting holes, and the first locking member can penetrate through the first mounting holes and the first adjusting holes.
In one embodiment, the first adjusting hole and the first mounting hole are both straight holes, and the length direction of the first adjusting hole is intersected with the length direction of the first mounting hole.
In one embodiment, the first adjusting member is further formed with first fixing locations, and each first adjusting location corresponds to one of the first fixing locations and is spaced from the first fixing location; the number of the first installation positions is two, one first installation position can be correspondingly connected with one first adjustment position, and the other first installation position can be correspondingly connected with the first fixed position corresponding to the first adjustment position.
In one embodiment, the first adjusting member is provided with a guide post, the first connecting member is provided with a guide hole, the guide hole is a straight hole, the length direction of the guide hole is consistent with the moving direction of the travelling wheel, and the guide post can be inserted into the guide hole and move in the guide hole.
In one embodiment, the two first mounting positions are respectively located on two opposite sides of the guide hole along the length direction.
A frame structure for a process bogie comprising:
A frame body; and
At least two wheelbase adjusting parts as described above, at least two wheelbase adjusting parts are arranged at intervals along the moving direction of the travelling wheels, the first adjusting part is arranged on the framework body, and the first connecting part is used for installing the travelling wheels.
When the axle distance of the steering frame of the process is required to be adjusted, the first connecting piece is adjusted to move along the moving direction of the travelling wheel relative to the first adjusting piece. Because the walking wheel is installed on first connecting piece, and at least two wheelbase adjusting part set up along the direction of movement interval of walking wheel, and then can realize the distance adjustment between the first connecting piece that sets up along the direction of movement of walking wheel, realize the regulation of the wheelbase of at least two walking wheels for the wheelbase between the walking wheel can adapt to ground car lifting jack, makes things convenient for subway vehicle automobile body part and technology bogie to fall on ground car lifting jack. Through the structure, the adaptability of the framework structure is effectively improved, the adaptability of the process bogie is further improved, the process bogies with different models are prevented from being configured, and the overhaul cost is effectively reduced.
In one embodiment, the frame body comprises a cross beam, a first side beam and a second side beam, wherein one end of the cross beam is fixed on the first side beam, and the other end of the cross beam is fixed on the second side beam; the four wheelbase adjusting assemblies are arranged on the first side beam at intervals, and the other two wheelbase adjusting assemblies are arranged on the second side beam at intervals.
In one embodiment, the device further comprises a limiting mounting seat, wherein the limiting mounting seat is arranged on one side, opposite to the wheelbase adjusting assembly, of the framework body, and the limiting mounting seat is used for detachably connecting a limiting piece.
In one embodiment, the limiting mounting seat comprises a mounting plate and a vertical plate, the mounting plate is fixed on the framework body through the vertical plate, a connecting hole is formed in the mounting plate, and the mounting plate is used for detachably connecting the limiting seat.
Detailed Description
In order that the above objects, features and advantages of the invention will be readily understood, a more particular description of the invention will be rendered by reference to specific embodiments thereof which are illustrated in the appended drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. The invention may be embodied in many other forms than described herein and similarly modified by those skilled in the art without departing from the spirit or scope of the invention, which is therefore not limited to the specific embodiments disclosed below.
It will be understood that when an element is referred to as being "fixed to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like are used herein for illustrative purposes only and are not meant to be the only embodiment.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The technical features of the above-described embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above-described embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.
Referring to fig. 1 and 2, a frame structure 10 of a process bogie in an embodiment is used for supporting a body part of a metro vehicle, is convenient for carrying and overhauling the body, can adapt to ground car cranes of different models, has good adaptability, avoids configuring frame structures 10 of different models, and effectively reduces overhauling cost. In particular to the present embodiment, the frame structure 10 is used in a power-type process bogie. Of course in other embodiments, it may also be used in non-powered process bogies. Specifically, the frame structure 10 includes a frame body 100 and a wheelbase adjustment assembly 200.
The framework body 100 is used for bearing components such as the wheelbase adjusting assembly 200, the wheelbase adjusting assembly 200 is used for installing travelling wheels, and the framework structure 10 can be driven to move through the travelling wheels, so that a vehicle body arranged on the framework body 100 can be driven to move. Specifically, the wheel base adjusting assemblies 200 are at least two, each wheel base adjusting assembly 200 corresponds to a travelling wheel, and the at least two wheel base adjusting assemblies 200 are arranged at intervals along the travelling direction of the travelling wheel. The wheelbase adjusting assembly 200 is adjustable to adjust the distance between the road wheels disposed at intervals in the direction of travel of the road wheels.
The frame body 100 includes a cross member 110, a first side member 120, and a second side member 130, one end of the cross member 110 is fixed to the first side member 120, and the other end is fixed to the second side member 130. The cross member 110, the first side member 120, and the second side member 130 form an "H" shaped structure. In this embodiment, the number of the wheelbase adjusting assemblies 200 is four, wherein two wheelbase adjusting assemblies 200 are arranged on the first side beam 120 at intervals, the other two wheelbase adjusting assemblies 200 are arranged on the second side beam 130, and each wheelbase adjusting assembly 200 corresponds to a travelling wheel, so that the travelling wheels support the frame structure 10 more stably, and unstable placement of the overhauled vehicle body caused by shaking of the frame structure 10 is avoided.
Of course, in other embodiments, three, four, etc. other numbers of wheelbase adjusting assemblies 200 may be further disposed on the first side beam 120, and three, four, etc. other numbers of wheelbase adjusting assemblies 200 may be further disposed on the second side beam 130, where each wheelbase adjusting assembly 200 is correspondingly provided with a travelling wheel, so long as the travelling wheel can effectively support and drive the frame body 100 to move.
Further, the buffer blocks 140 are disposed at the opposite ends of the first side beam 120, so that the buffer blocks 140 can prevent the two adjacent process bogies from colliding with each other to generate a large impact force. Further, the side of the first side member 120 facing away from the second side member 130 is provided with a lifting lug 150, and the side of the second side member 130 facing away from the first side member 120 is also provided with a lifting lug 150. The frame body 100 is conveniently lifted by the lifting lugs 150.
The frame structure 10 further includes a first support 160 and a second support 170, where the first support 160 and the second support 170 are disposed on two sides of the beam 110 respectively. The first support 160 has one end fixed to the first side member 120 and the other end fixed to the second side member 130, and the first support 160 is for supporting the battery box. The second support 170 has one end fixed to the first side beam 120 and the other end fixed to the second side beam 130, and the second support 170 is used to support the electrical cabinet. The frame structure 10 is reasonably utilized by the first support 160 and the second support 170.
In particular, in the present embodiment, the first supporting member 160 includes two angle steels, which are disposed at intervals, and one end of each angle steel is fixed to the first side member 120 and the other end is fixed to the second side member 130, so that the manufacturing process is simple. The second supporting member 170 includes two angle steels 171, the two angle steels 171 are arranged at intervals, one end of each angle steel 171 is fixed on the first side beam 120, and the other end is fixed on the second side beam 130, so that the manufacturing difficulty of the second supporting member 170 is further reduced. Of course, in other embodiments, the first support 160 and the second support 170 may have other structures as long as they can support the battery cabinet and the electrical cabinet.
Referring to fig. 3 to 5, specifically, the wheelbase adjusting assembly 200 includes a first adjusting member 210 and a first connecting member 220, the first adjusting member 210 is disposed on the frame body 100, and the first connecting member 220 is used for mounting travelling wheels. Wherein the first link 220 of at least one wheelbase adjustment assembly 200 is movable relative to the first adjustment member 210 in the direction of travel of the road wheel to adjust the wheelbase between the road wheel on that first link 220 and the road wheel on the other first link 220.
In use, the first connector 220 of the wheelbase adjustment assembly 200 moves relative to the first adjuster 210 in the direction of travel of the road wheels, depending on the model and size of the ground jack. Because the walking wheel is installed on first connecting piece 220, and at least two wheelbase adjusting part 200 set up along the direction of movement interval of walking wheel, and then can realize the distance adjustment between the first connecting piece 220 that sets up along the direction of movement of walking wheel, realize the regulation of the wheelbase of at least two walking wheels for the wheelbase between the walking wheel can adapt to ground car lifting jack, makes things convenient for subway vehicle automobile body and technology bogie to fall on ground car lifting jack, effectively improves the adaptability of framework structure 10, avoids configuring framework structure 10 of different models, effectively reduces the maintenance cost.
Further, at least two first adjusting positions 211 are formed on the first adjusting member 210 and are spaced along the moving direction of the travelling wheel, and a first mounting position 221 is formed on the first connecting member 220, and the first connecting member 220 is movable relative to the first adjusting member 210, so that the first mounting position 221 can be correspondingly connected with the at least one first adjusting position 211. By adjusting the first connecting piece 220 to move relative to the first adjusting piece 210, the first mounting position 221 is correspondingly connected with different first adjusting positions 211, so that different wheelbases of travelling wheels can be obtained, and different ground car lifting machines can be suitable. Meanwhile, due to the fact that the first adjusting positions 211 are arranged at intervals, the wheel base between each traveling wheel is adjusted by a certain size, the stepped adjustment of the wheel base between the traveling wheels is achieved, and the wheel base between the traveling wheels can be effectively corresponding to the ground car lifting jack. Meanwhile, inaccurate alignment of the travelling wheels and the ground car lifting jack caused by stepless adjustment of the wheelbase between the travelling wheels can be avoided, and adjustment difficulty and complexity are increased.
Optionally, the wheelbase adjusting assembly 200 further includes a first locking member (not shown), at least two first adjusting holes 2111 disposed at intervals are formed in the single first adjusting position 211, at least two first mounting holes 2211 disposed at intervals are formed in the first mounting position 221, the first mounting holes 2211 can be correspondingly communicated with the first adjusting holes 2111, and the first locking member is disposed in the first mounting holes 2211 and the first adjusting holes 2111 in a penetrating manner. After the first connecting piece 220 is adjusted to a proper position, the first connecting piece 220 is effectively fixed on the first adjusting piece 210 by the first locking piece, so that the travelling wheel is effectively arranged on the framework structure 10.
Specifically, the first locking member is a screw, and by using the screw, not only the reliability of the connection between the first connecting member 220 and the first adjusting member 210 can be increased, but also the first connecting member 220 and the first adjusting member 210 can be detached, so that the first connecting member 220 can be moved relative to the first adjusting member 210 conveniently.
Specifically, in this embodiment, the first adjusting position 211 is provided with two first adjusting holes 2111 disposed at intervals, and the first mounting position 221 is provided with two first mounting holes 2211 disposed at intervals. The interval between the two first mounting holes 2211 is the same as the interval between the first adjustment holes 2111 so that the first mounting holes 2211 can effectively correspond to the first adjustment holes 2111. The first connection member 220 can be effectively fixed on the first adjustment member 210 through the two first adjustment holes 2111 and the first mounting hole 2211, so that the first connection member 220 is prevented from rotating around the first locking member relative to the first adjustment member 210.
Specifically, the first adjusting hole 2111 and the first mounting hole 2211 are both straight holes, so that the first adjusting hole 2111 is effectively communicated with the first mounting hole 2211, and further machining accuracy of the first adjusting hole 2111 and the first mounting hole 2211 is reduced. Further, the length direction of the first adjusting hole 2111 is intersected with the length direction of the first mounting hole 2211, so that the first adjusting hole 2111 is easier to be correspondingly communicated with the first mounting hole 2211, and the processing precision of the first adjusting hole 2111 and the first mounting hole 2211 is further reduced.
Further, the length direction of the first adjusting hole 2111 is the axial direction of the travelling wheels, so that the stability of wheelbase adjustment between the travelling wheels is prevented from being affected when the first connecting piece 220 drives the travelling wheels to move along the length direction of the first adjusting hole 2111.
In this embodiment, the first adjusting member 210 is further formed with a first fixing portion 212, each first adjusting portion 211 corresponds to a first fixing portion 212, and a distance between each first adjusting portion 211 and the first fixing portion 212 corresponding to the first adjusting portion 211 is the same. The number of the first mounting positions 221 is two, one first mounting position 221 is correspondingly connected with the first adjusting position 211, and the other first mounting position 221 can be correspondingly connected with the first fixing position 212 corresponding to the first adjusting position 211, so that the stability of the connection between the first connecting piece 220 and the first adjusting piece 210 is further improved.
Specifically, at least two first fixing holes 2121 disposed at intervals are formed in the first fixing position 212, and a first mounting hole 2211 corresponding to the first fixing hole 2121 is formed in the other first mounting position 221. The fixing screws penetrate through the first fixing holes 2121 and the first mounting holes 2211, so that the first connecting piece 220 is effectively fixed on the first adjusting piece 210.
Further, the first fixing hole 2121 is a straight hole, which effectively reduces the machining precision of the first fixing hole 2121. Specifically, in the present embodiment, the longitudinal direction of the first fixing hole 2121 coincides with the longitudinal direction of the first adjustment hole 2111 and intersects the longitudinal direction of the first attachment hole 2211.
Specifically, the first adjusting member 210 is provided with a guide post 213, the first connecting member 220 is provided with a guide hole 222, the guide hole 222 is a linear hole, the length direction of the guide hole 222 is consistent with the moving direction of the travelling wheel, and the guide post 213 can be inserted into the guide hole 222 and move in the guide hole 222. Through guide post 213 moving in the guide way for first connecting piece 220 can effectively remove along the direction of movement of walking wheel, further improves the validity and the stability of wheelbase regulation between the walking wheel.
Further, the two first mounting locations 221 are respectively located at two opposite sides of the guide hole 222 along the length direction. The first adjusting position 211 and the first fixing position 212 are respectively located at two opposite sides of the guide post 213. Since one first mounting position 221 is correspondingly connected to the first adjusting position 211, the other first mounting position 221 is correspondingly connected to the first fixing position 212, so that the first connecting member 220 is more effectively fixed on the first adjusting member 210.
The first adjusting member 210 includes an adjusting plate 214 and a supporting plate 215, and a first adjusting hole 2111 is formed in the adjusting plate 214. The adjusting plate 214 is fixed on the frame body 100 through the supporting plate 215, so that a space is reserved between the adjusting plate 214 and the frame body 100, and a mounting space is reserved for connecting the first connecting piece 220 with the first locking piece, the fixing screw and the like of the adjusting plate 214, so that the situation that holes are formed in the frame body 100, and the first adjusting holes 2111 in the adjusting plate 214 need to be aligned with holes in the frame body 100, and the mounting difficulty of the first adjusting piece 210 is increased.
Specifically, the two support plates 215 are arranged on the adjusting plate 214 at intervals, and an accommodating space is formed by the two support plates 215 and the adjusting plate 214, so that the first locking piece, the fixing screw and the like can be conveniently installed. Further, a side edge of the support plate 215 remote from the adjustment plate 214 is welded to the frame body 100. Of course, in other embodiments, the support plate 215 may be glued or fastened to the frame body 100 by screws or the like.
The first adjusting member 210 further includes a reinforcing plate 216, one side of the reinforcing plate 216 is fixed to one support plate 215, and the opposite side is fixed to the other support plate 215. The supporting effect of the supporting plate 215 on the adjusting plate 214 can be effectively reinforced by the reinforcing plate 216. Specifically, the number of the reinforcing plates 216 is two, and the two reinforcing plates 216 are arranged at intervals. The first adjusting hole 2111 is formed on a side of the reinforcing plate 216 facing away from the other reinforcing plate 216, and the first fixing hole 2121 is formed on a side of the other reinforcing plate 216 facing away from the one reinforcing plate 216. The guide posts 213 are disposed between two reinforcing plates 216.
Of course, in other embodiments, the reinforcing plate 216 may be disposed between two adjacent first adjustment locations 211 or first fixing locations 212, so long as the supporting plate 215 is effectively supported.
The first connecting member 220 includes a pad and a connecting plate, and the first mounting hole 2211 and the guide hole 222 simultaneously penetrate the pad and the connecting plate. The connecting plate is arranged on the side of the adjusting plate 214 facing away from the supporting plate 215 through the backing plate. Specifically, the backing plate is an elastic pad. Further, the backing plate is a rubber pad. The connection plate can be made more tightly fixed with the adjustment plate 214 by the backing plate.
Optionally, the wheelbase adjusting assembly 200 further comprises a fixing member 230, the fixing member 230 is used for fixing the wheel box 240 on the first connecting member 220, the wheel box 240 is used for setting a travelling wheel, and the travelling wheel is rotatable relative to the wheel box 240. Specifically, one end of the fixing member 230 passes through the wheel box 240, the connection plate and the pad plate, and effectively and fixedly connects the wheel box 240 with the connection plate and the pad plate. When the first connecting piece 220 moves relative to the first adjusting piece 210, the first connecting piece 220 can effectively drive the wheel box 240 to move, and further drive the travelling wheel to move.
Further, the first connecting member 220 is provided with a fixing hole 223, and one end of the fixing member 230 passes through the wheel box 240 and is disposed in the fixing hole 223. In this embodiment, the number of the fixing members 230 is eight, each fixing member 230 corresponds to a fixing hole 223, the eight fixing members 230 are divided into two rows along the axial direction of the travelling wheel, and four fixing members 230 in each row are arranged at intervals. Specifically, the fixing member 230 is a connection screw. Of course, in other embodiments, the number of the fixing members 230 can be other, so long as the wheel box 240 and the first connecting member 220 can be effectively connected.
Optionally, the adjusting plate 214 is further provided with a sliding hole 217, and one end of the fixing member 230 passes through the wheel box 240, the connecting plate and the backing plate, and can be inserted into the sliding hole 217. The length direction of the sliding hole 217 is the moving direction of the travelling wheel. When the first connecting member 220 drives the wheel box 240 to move relative to the adjusting plate 214, the fixing member 230 can move in the sliding hole 217. The sliding hole 217 forms a receiving space for the fixing member 230, and the fixing member 230 moves in the sliding hole 217, so that the first connecting member 220 is prevented from interfering with the moving process of the fixing member 230, and meanwhile, the first connecting member 220 can move along the moving direction of the travelling wheel by moving the fixing member 230 in the sliding hole 217.
In this embodiment, the sliding hole 217 is formed between two spaced reinforcing plates 216, so as to prevent the reinforcing plates 216 from interfering with the sliding of the fixing member 230. Specifically, the number of the slide holes 217 is two, and the two slide holes 217 are arranged in parallel at intervals. Each row of fasteners 230 can be disposed through a slide aperture 217. The guide post 213 is disposed between the two slide holes 217. Of course, in other embodiments, the number and positions of the sliding holes 217 can be further defined according to the number and positions of the fixing members 230, so long as one end of the fixing members 230 can effectively extend into the sliding holes 217.
Referring to fig. 1 and 2 again, the frame structure 10 further includes a limiting mount 300, the limiting mount 300 is disposed on a side of the frame body 100 opposite to the wheelbase adjusting assembly 200, and the limiting mount 300 is configured to detachably connect with a limiting member. The limiting seat is used for fixing the traction seat of the overhauled subway vehicle. The limiting seat can limit the transverse displacement and the longitudinal displacement of the vehicle body in the horizontal plane, so that the vehicle body is prevented from overturning due to overlarge displacement of the vehicle body relative to the process bogie. Specifically, the limiting mount 300 is disposed on the beam 110, and further improves the stability of fixing the vehicle body.
The limit mount 300 includes a mounting plate 310 and a vertical plate 320, and the mounting plate 310 is fixed to the frame body 100 through the vertical plate 320. The mounting plate 310 is provided with a connecting hole 311 for detachably connecting with the limit seat. The vertical plate 320 is used for enabling the space between the mounting plate 310 and the framework body 100, forming a mounting space for mounting the connecting screw and the like of the limiting seat, improving the mounting stability of the limiting seat and the mounting plate 310, and avoiding forming holes on the framework body 100.
Referring to fig. 6, the frame structure 10 further includes two support mounting seats, wherein the two support mounting seats are disposed at intervals along the axial direction of the travelling wheel, and a support seat is correspondingly disposed on a single support mounting seat. Specifically, the support mounting seat includes a second adjusting member 410 and a second connecting member 420, the second adjusting member 410 is disposed on a side of the frame body 100 opposite to the wheelbase adjusting assembly 200, the support seat can be disposed on the second adjusting member 410 through the second connecting member 420, and the second connecting member 420 is movable relative to the second adjusting member 410 along an axial direction of the travelling wheel to adjust a distance between one support seat and another support seat. The supporting seats are used for supporting the car body, and the supporting seats can support the car bodies with different width types by adjusting the distance between the two supporting seats, so that the adaptability of the process bogie is further improved.
The second adjusting member 410 is formed with a second mounting position 411, and the second connecting member 420 is formed with at least two second adjusting positions 421 axially spaced along the travelling wheel, and the second connecting member 420 is movable relative to the second adjusting member 410, so that the second mounting position 411 can be correspondingly connected with a second adjusting position 421. By adjusting the second connecting piece 420 to move relative to the second adjusting piece 410, the second installation position 411 is correspondingly connected with different second adjusting positions 421, so that support seats with different distances can be obtained to support different types of vehicle bodies. Meanwhile, as the second adjusting positions 421 are arranged at intervals, the distance between the supporting seats which are adjusted each time is fixed, the step-by-step adjustment of the distance between the supporting seats is realized, the stepless adjustment of the distance between the supporting seats can be avoided, the supporting seats cannot effectively support the vehicle body, and the adjustment difficulty and the complexity are increased.
Optionally, the frame structure 10 further includes a second locking member, at least two second adjusting holes 4211 disposed at intervals are disposed on the single second adjusting position 421, at least two second mounting holes 4111 disposed at intervals are disposed on the second mounting position 411, the second mounting holes 4111 can be correspondingly communicated with the second adjusting holes 4211, and the second locking member is disposed through the second mounting holes 4111 and the second adjusting holes 4211. After the second connecting piece 420 is adjusted to a proper position, the second connecting piece 420 is effectively fixed on the second adjusting piece 410 by the second locking piece, so that the supporting seat is effectively fixed on the frame body 100.
Specifically, the second locking member is a screw, and by using the screw, not only the reliability of the connection between the second connecting member 420 and the second adjusting member 410 can be increased, but also the second connecting member 420 and the second adjusting member 410 can be detached, so that the second connecting member 420 can be moved relative to the second adjusting member 410.
Specifically, in this embodiment, two second adjusting holes 4211 are formed in the second adjusting position 421 and two second mounting holes 4111 are formed in the second mounting position 411. The spacing between the two second mounting holes 4111 is the same as the spacing between the second adjustment holes 4211 so that the second mounting holes 4111 effectively correspond to the second adjustment holes 4211. The second connecting member 420 can be effectively fixed to the second adjusting member 410 through the two second adjusting holes 4211 and the second mounting hole 4111, so that the second connecting member 420 is prevented from rotating around the second locking member relative to the second adjusting member 410.
Optionally, a second fixing position 422 is further formed on the second connecting member 420, each second adjusting position 421 corresponds to a second fixing position 422, and a distance between each second adjusting position 421 and the second fixing position 422 corresponding to the second adjusting position 421 is the same. The number of the second installation positions 411 is two, one second installation position 411 is correspondingly connected with the second adjusting position 421, and the other second installation position 411 can be correspondingly connected with the second fixing position 422 corresponding to the second adjusting position 421, so that the connection stability of the second connecting piece 420 and the second adjusting piece 410 is further improved.
Specifically, the second fixing position 422 is provided with at least two second fixing holes 4221 disposed at intervals, and the other second mounting position 411 is provided with second mounting holes 4111 corresponding to the second fixing holes 4221. The second connecting member 420 is effectively fixed on the second adjusting member 410 by the fixing screw penetrating through the second fixing hole 4221 and the second mounting hole 4111.
Specifically, the second adjusting member 410 is fixed to the beam 110, and the supporting seat is fixed to a side of the second connecting member 420 facing away from the second adjusting member 410. Further, the second adjusting member 410 and the second connecting member 420 are both plate-shaped and can be directly attached to the beam 110, so as to avoid the deformation of the second adjusting member 410 and the second connecting member 420 when the supporting seat supports the vehicle body.
When the ground car lifting jack is used, according to the model and the size of the ground car lifting jack, the first connecting piece 220 of the first mounting seat 200 is adjusted to move along the moving direction of the travelling wheels relative to the first adjusting piece 210, the first mounting position 221 is correspondingly connected with the first adjusting position 211, and further the adjustment of the wheelbase of at least two travelling wheels is achieved, so that the wheelbase between the travelling wheels can adapt to the ground car lifting jack. Further, according to the model and the size of the metro vehicle body, the second connecting piece 420 is adjusted to move relative to the second adjusting piece 410, so that the second mounting position 411 is correspondingly connected with a second adjusting position 421, and further a supporting seat with a certain distance can be obtained to more stably support the vehicle body. Through the structure, the frame structure 10 is convenient for fixing the body part of the metro vehicle on the frame structure 10, can adapt to different ground car cranes, effectively improves the adaptability of the frame structure 10, avoids configuring the frame structure 10 with different models, and effectively reduces the maintenance cost.
The above-described embodiments represent only a few embodiments of the present invention, which are described in more detail and are not to be construed as limiting the scope of the invention. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the invention, which are all within the scope of the invention. Accordingly, the scope of protection of the present invention is to be determined by the appended claims.