Railway special line track brazing equipment

Abstract

The invention discloses railway special line rail brazing equipment, and relates to the technical field of brazing, the railway special line rail brazing equipment comprises a main body unit which comprises a mobile crane, a lifting hook arranged on the mobile crane, a rail welding machine arranged on the lifting hook, and a rail body arranged on the rail welding machine; the pre-welding positioning unit comprises threaded rolling assemblies which are arranged above the rail body and located on the two sides of the rail welding machine. According to the railway special line rail brazing equipment, a threaded rotating shaft and a threaded roller on the pre-welding positioning unit make contact with a rail fixed on site in advance in the descending process of a rail welding machine, and in the continuous descending process of the rail welding machine, the threaded rotating shaft and the threaded roller rotate on a rail body and enable two rotating clamping plates to be close to each other till the threaded rotating shaft and the threaded roller are clamped and positioned on the rail body; and the rail welding machine is in a stable descending state when descending to make contact with the rail body, the stability of the rail welding machine in the descending process is improved, and the situation that the rail body is damaged due to the fact that the rail welding machine shakes in the welding process is avoided.

Description

Technical Field

[0001] The invention relates to the technical field of brazing, and in particular to a railway dedicated line track brazing device. Background Art

[0002] Railway rail welding is generally divided into on-site welding and factory welding according to the site. Factory welding is mainly carried out in factories or bases, using fixed flash contact welding, usually in a more controlled environment. However, due to the long length of the rails, the factory welding environment is relatively limited, so it is more common to weld directly on the railway on site. At present, rail welding is directly performed on the railway. Generally, multiple sections of rails are ground and aligned in advance and fixed on the railway site. Then, a mobile crane is used to lift the flash rail welding machine and lower it to the rail welding site. After the two sections of rails are clamped, the rails that need to be welded are welded. After a section of rail welding is completed, the flash rail welding machine can be directly lifted up and separated from the track, and the mobile crane can be controlled to travel to the next section that needs to be welded to continue the welding operation. The welding efficiency is relatively high. However, in order to facilitate the retraction and deployment of the flash rail welding machine, the current mobile crane is generally operated by connecting the flash rail welding machine with a chain. In the process of welding the rails, it is necessary to lift and lower the flash rail welding machine. The chain connection method will cause the flash rail welding machine to be unstable and prone to shaking during the up and down lifting process. When the flash rail welding machine descends to connect with the rail, it is easy to shake and collide with the rail, causing damage to the rail, so improvement is needed. Summary of the invention

[0003] The purpose of this section is to summarize some aspects of embodiments of the present invention and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the specification abstract and the invention title of this application to avoid blurring the purpose of this section, the specification abstract and the invention title, and such simplifications or omissions cannot be used to limit the scope of the present invention.

[0004] In view of the above-mentioned problems existing in the existing railway dedicated line track brazing equipment, the present invention is proposed.

[0005] Therefore, the purpose of the present invention is to provide a railway dedicated line track brazing equipment, which aims to solve the technical problem that the flash rail welding machine is hung on a mobile crane and is unstable when descending, and is easy to collide with the rails.

[0006] In order to solve the above technical problems, the present invention provides the following technical solutions: comprising a main unit, including a mobile crane, a hook arranged on the mobile crane, a rail welding machine arranged on the hook, and a rail body arranged on the rail welding machine; and, The pre-welding positioning unit includes a thread rolling assembly arranged above the rail body and located on both sides of the rail welding machine, two collar assemblies arranged on the thread rolling assembly, a rotating clamping assembly arranged on the collar assembly, a thread movable assembly arranged on the thread rolling assembly and connected to the rotating clamping assembly, and a connecting assembly arranged on the thread rolling assembly and connected to the rail welding machine.

[0007] As a preferred solution of the railway dedicated line track brazing equipment described in the present invention, the thread rolling assembly includes a threaded rotating shaft arranged above the rail body, two annular grooves arranged on the threaded rotating shaft, a threaded roller arranged on the threaded rotating shaft and located between the two annular grooves, and connecting plates arranged at both ends of the threaded rotating shaft.

[0008] As a preferred solution of the railway dedicated line track brazing equipment of the present invention, the ring assembly includes a bearing ring arranged on the outer periphery of the annular groove, a movable ring arranged on the outer periphery of the bearing ring, and a vertical movable groove arranged on the bearing ring.

[0009] As a preferred solution of the railway dedicated line track brazing equipment described in the present invention, the ring assembly also includes a movable plate arranged inside the vertical movable groove, a lower convex plate arranged on the movable plate, and a telescopic spring arranged on the movable plate and connected to the inner wall of the vertical movable groove.

[0010] As a preferred solution of the railway dedicated line track brazing equipment described in the present invention, the rotating clamping assembly includes a rotating clamping plate arranged on the movable ring, an upper convex rod arranged on the rotating clamping plate and in contact with the lower convex plate, and a movable notch arranged on the movable ring and cooperating with the upper convex rod, and the movable ring is provided with a transverse movable groove cooperating with the lower convex plate.

[0011] As a preferred solution of the railway dedicated line track brazing equipment described in the present invention, the rotating clamping assembly also includes an opening arranged on the rotating clamping plate, and a roller arranged inside the opening, the transverse movable groove is connected to the movable groove mouth, and the top end of the lower protruding rod extends to the inside of the transverse movable groove.

[0012] As a preferred solution of the railway dedicated line track brazing equipment described in the present invention, the threaded movable component includes a limit rod arranged between the two connecting plates and located above the threaded rotating shaft, two threaded rings arranged on the threaded rotating shaft and connected to the limit rod, and a limit slide groove arranged on the rotating clamping plate.

[0013] As a preferred solution of the railway dedicated line track brazing equipment of the present invention, the threaded movable component also includes a limiting slider arranged inside the limiting slide groove, and a rotating rod arranged between the limiting slider and the threaded ring.

[0014] As a preferred solution of the railway dedicated line track brazing equipment of the present invention, the connecting assembly includes two rotating brackets arranged on the limiting rod, and a rotating member arranged on the two rotating brackets and connected to the rail welding machine.

[0015] As a preferred solution of the railway dedicated line track brazing equipment described in the present invention, the rail welding machine includes a welding machine body arranged below the hook, a central axis arranged on the welding machine body, and a hanger arranged on the central axis and connected to the hook, a welding rail joint connected to the rail body is arranged on the welding machine body, a group of rail clamping rollers are arranged at one end of the welding machine body, a hydraulic cylinder is arranged on the rail welding machine, and the two rotating parts are respectively fixedly connected to the two ends of the central axis.

[0016] The beneficial effects of the present invention are as follows: by setting a pre-welding positioning unit, the threaded rotating shaft and the threaded roller on the pre-welding positioning unit are used to contact the rails fixed on site in advance during the descending process of the rail welding machine, and As the rail welding machine continues to descend, it rotates on the rail body and makes the two rotating clamps on the threaded rotating shaft approach each other until they are in contact with the surface of the rail body. The rotating clamps are then clamped and positioned on the rail body, so that the rail welding machine is in a stable descending state when it descends to contact with the rail body, thereby improving the stability of the rail welding machine relative to the rail body during the descent process and avoiding the situation where the rail welding machine shakes during welding and causes damage to the rail body. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative labor.

[0018] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0019] Figure 2 For the present invention Figure 1 A magnified schematic diagram of center A.

[0020] Figure 3 It is a structural schematic diagram of the pre-welding positioning unit of the present invention.

[0021] Figure 4It is a structural schematic diagram of the threaded movable component of the present invention.

[0022] Figure 5 For the present invention Figure 4 A magnified schematic diagram of point B in the middle.

[0023] Figure 6 It is a schematic structural diagram of the thread rolling assembly of the present invention.

[0024] Figure 7 It is a schematic diagram of the process of the three states of the rotating splint of the present invention.

[0025] Figure 8 It is a structural schematic diagram of the central axis of the present invention.

[0026] Fig. 9 It is a structural schematic diagram of the rail welding machine of the present invention.

[0027] Description of reference numerals: 100, main unit; 101, mobile crane; 102, hook; 103, rail welding machine; 104, rail body; 200, pre-welding positioning unit; 201, thread rolling assembly; 202, collar assembly; 203, rotating clamping assembly; 204, thread movable assembly; 205, connecting assembly; 201a, thread rotating shaft; 201b, annular groove; 201c, thread roller; 201d, connecting plate; 202a, bearing collar; 202b, movable collar; 202c, vertical movable groove; 202c-1, movable plate; 202c-2, Lower convex plate; 202c-3, telescopic spring; 203a, rotating clamp; 203b, upper convex rod; 203c, movable notch; 203d, transverse movable groove; 203a-1, opening; 203a-2, roller; 204a, limit rod; 204b, threaded ring; 204c, limit slide; 204c-1, limit slider; 204c-2, rotating rod; 205a, rotating bracket; 205b, rotating part; 103a, welding machine body; 103b, center axis; 103c, hanger; 103d, welding rail joint; 103e, rail clamping roller; 103f, hydraulic cylinder. DETAILED DESCRIPTION

[0028] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0029] Example 1, reference Figure 1-Figure 9, which is the first embodiment of the present invention, provides a railway dedicated line track brazing equipment, the device includes a main unit 100, including a mobile crane 101, a hook 102 arranged on the mobile crane 101, a rail welding machine 103 arranged on the hook 102, and a rail body 104 arranged on the rail welding machine 103; and a pre-welding positioning unit 200, including a thread rolling component 201 arranged above the rail body 104 and located on both sides of the rail welding machine 103, two collar components 202 arranged on the thread rolling component 201, a rotating clamping component 203 arranged on the collar component 202, a thread movable component 204 arranged on the thread rolling component 201 and connected to the rotating clamping component 203, and a connecting component 205 arranged on the thread rolling component 201 and connected to the rail welding machine 103.

[0030] Among them, the top end of the hook 102 is fixedly connected to the mobile crane 101 through a chain, and the rail welding machine 103 is hung on the mobile crane 101 through the hook 102; since the rail welding machine 103 is used to weld the rail body 104 on site, the mobile crane 101 is generally required to load the rail welding machine 103 on the way to the on-site welding and after the welding work is completed, and then the chain hook 102 or other flexible and deformable tools are generally used to connect the rail welding machine 103, so that the staff can control the mobile crane 101 to retract and extend the rail welding machine 103.

[0031] During use, the staff controls the mobile crane 101 to move to a suitable position, and then operates the mobile crane 101 to lower the rail welding machine 103 to the position where the rail body 104 needs to be welded. Since the height of the pre-welding positioning unit 200 is lower than the height of the bottom of the rail welding machine 103, the pre-welding positioning unit 200 will contact the rail body 104 fixed on site in advance during the descent of the rail welding machine 103. When the pre-welding positioning unit 200 has contacted the rail body 104, the continued descent of the rail welding machine 103 will drive the connecting assembly 205 to rotate, thereby causing the two threaded rolling assemblies 201 to gradually roll away from the rail welding machine 103, and then cooperate with the collar assembly 202, the rotating clamping assembly 203 and the threaded movable assembly 204 to clamp the rail body 104, so that the pre-welding positioning unit 200 is clamped and positioned on the rail body 104, so that when the rail welding machine 103 descends to contact the rail body 104, it is in a stable state.

[0032] Example 2, reference Figure 1-Figure 7, which is the second embodiment of the present invention. This embodiment is different from the first embodiment in that: the thread rolling assembly 201 includes a threaded rotating shaft 201a arranged above the rail body 104, two annular grooves 201b arranged on the threaded rotating shaft 201a, a threaded roller 201c arranged on the threaded rotating shaft 201a and located between the two annular grooves 201b, and connecting plates 201d arranged at both ends of the threaded rotating shaft 201a; wherein the annular groove 201b is provided on the outer surface of the threaded rotating shaft 201a, and the threaded roller 201c is sleeved It is fixedly connected to the middle part of the outer surface of the threaded rotating shaft 201a. The threaded roller 201c is made of rubber material. It contacts with the rail body 104 and rotates on its top without causing wear to it. Both ends of the threaded rotating shaft 201a are rotatably connected to the two connecting plates 201d through bearings. The two ends of the outer surface of the threaded rotating shaft 201a are set as two opposite sections of threads. When it rotates, the two rotating clamping plates 203a on the same threaded rotating shaft 201a move towards or in the opposite direction, thereby facilitating the clamping and positioning of the rail body 104.

[0033] Furthermore, the collar assembly 202 includes a bearing collar 202a disposed on the periphery of the annular groove 201b, a movable collar 202b disposed on the periphery of the bearing collar 202a, and a vertical movable groove 202c disposed on the bearing collar 202a; wherein the bearing collar 202a is rotatably connected to a depression located at the position of the annular groove 201b on the outer surface of the threaded rotating shaft 201a through a bearing, and the movable collar 202b is slidably connected to the outer surface of the bearing collar 202a. Since the bearing collar 202a and the threaded rotating shaft 201a are rotatably connected, when the threaded rotating shaft 201a rotates, the bearing collar 202a and the movable collar 202b will not be restricted from following the rotation, so as to subsequently adjust the position of the rotating clamping assembly 203 to achieve clamping positioning on the rail body 104; the vertical movable groove 202c is provided on the outer surface of the bearing collar 202a.

[0034] Furthermore, the collar assembly 202 also includes a movable plate 202c-1 arranged inside the vertical movable groove 202c, a lower convex plate 202c-2 arranged on the movable plate 202c-1, and a telescopic spring 202c-3 arranged on the movable plate 202c-1 and connected to the inner wall of the vertical movable groove 202c; wherein the movable plate 202c-1 is slidably connected to the inside of the vertical movable groove 202c, the movable plate 202c-1 is consistent in shape with the vertical movable groove 202c, and the top of the telescopic spring 202c-3 is fixed to the top of the inner surface of the vertical movable groove 202c The bottom end of the telescopic spring 202c-3 is fixedly connected to the top of the movable plate 202c-1, and the lower convex plate 202c-2 is fixedly connected to the bottom of the movable plate 202c-1; through the setting of the telescopic spring 202c-3, the movable plate 202c-1 and the lower convex plate 202c-2 have a certain elasticity, and the aperture of the vertical movable groove 202c located inside the bearing ring 202a is larger than the aperture on the outer surface of the bearing ring 202a, so even if the movable plate 202c-1 has a certain elastic range of activity, it will not separate from the interior of the vertical movable groove 202c.

[0035] Furthermore, the rotating clamping assembly 203 includes a rotating clamping plate 203a arranged on the movable collar 202b, an upper convex rod 203b arranged on the rotating clamping plate 203a and in contact with the lower convex plate 202c-2, and a movable notch 203c arranged on the movable collar 202b and cooperating with the upper convex rod 203b, and the movable collar 202b is provided with a transverse movable groove 203d cooperating with the lower convex plate 202c-2; wherein the rotating clamping plate 203a is rotatably connected to the bottom of the outer surface of the movable collar 202b through a rotating block, and the upper convex rod 203b is fixedly connected to the rotating clamping plate 2 03a, the movable notch 203c is provided on the outer surface of the movable collar 202b, and the side of the movable notch 203c close to the rail body 104 is in an arc shape, which is consistent with the rotation trajectory of the upper protruding rod 203b, and the side of the movable notch 203c away from the rail body 104 is in a vertical position, and when the rotating clamping plate 203a and the upper protruding rod 203b are adjusted to a vertical state, the upper protruding rod 203b will just fit on the vertical surface of the movable notch 203c, thereby no longer providing space for the rotating clamping plate 203a to rotate, so that it can only be adjusted to a vertical state at most; When the upper convex rod 203b and the rotating clamping plate 203a rotate to a vertical state in the movable slot 203c, the lower convex plate 202c-2 and the movable plate 202c-1 will be squeezed by the lower convex rod, so that they will move upward in the vertical movable slot 202c for a certain position. When the lower convex rod is no longer in a vertical state, it will not restrict the lower convex plate 202c-2 and the movable plate 202c-1, and the movable plate 202c-1 and the lower convex plate 202c-2 can be automatically reset and extend into the movable slot 203c by the elastic force of the telescopic spring 202c-3; The lower convex plate 202c-2 is slidably connected to the transverse movable groove 203d, and the shape of the rotating clamping plate 203a close to the side of the rail body 104 is set to a shape that matches the surface of the rail body 104, so that it can better fit the surface of the rail body 104, further enhancing the stability of the rail welding machine 103 when it descends.

[0036] Furthermore, the rotating clamping assembly 203 also includes an opening 203a-1 arranged on the rotating clamping plate 203a, and a roller 203a-2 arranged inside the opening 203a-1, the transverse movable groove 203d is connected to the movable groove 203c, and the top end of the lower protrusion extends to the inside of the transverse movable groove 203d; wherein, a plurality of openings 203a-1 are opened on each surface of the rotating clamping plate 203a on the side that matches the shape of the rail body 104, and the roller 203a-2 is rotatably connected to the inside of the opening 203a-1 through a bearing, and when the rotating clamping plate 203a is adjusted to a vertical state and pushed to a certain distance, the roller 203a-2 on the rotating clamping plate 203a will be completely attached to the surface of the rail body 104, and then when the rail welding machine 103 continues to descend, the friction on the rail body 104 can be reduced by the roller 203a-2 to avoid wear on it.

[0037] Furthermore, the threaded movable component 204 includes a limiting rod 204a arranged between the two connecting plates 201d and located above the threaded rotating shaft 201a, two threaded rings 204b arranged on the threaded rotating shaft 201a and connected to the limiting rod 204a, and a limiting slide groove 204c arranged on the rotating clamping plate 203a; wherein the limiting rod 204a is fixedly connected between the two connecting plates 201d, the threaded ring 204b is slidably connected to the limiting rod 204a through a sliding hole, and the limiting slide groove 204c is opened on a side of the rotating clamping plate 203a close to the threaded ring 204b. When the threaded rotating shaft 201a and the threaded roller 201c rotate on the rail body 104, the threaded ring 204b can only move horizontally due to the limitation of the limiting rod 204a, but cannot rotate, thereby facilitating the adjustment of the angle of the rotating clamping plate 203a.

[0038] Furthermore, the threaded movable component 204 also includes a limiting slider 204c-1 arranged inside the limiting slide groove 204c, and a rotating rod 204c-2 arranged between the limiting slider 204c-1 and the threaded ring 204b; wherein the limiting slider 204c-1 is slidably connected inside the limiting slide groove 204c, and both ends of the rotating rod 204c-2 are respectively rotatably connected with the limiting slider 204c-1 and the threaded ring 204b through rotating blocks, and through the arrangement of the rotating rod 204c-2, the limiting slide groove 204c and the limiting slider 204c-1, when the threaded ring 204b moves on the threaded rotating shaft 201a and the limiting rod 204a, it will drive the rotating rod 204c-2 to rotate accordingly, thereby changing the angle of the rotating clamping plate 203a; When the threaded roller 201c contacts the rail body 104 and the rail welding machine 103 continues to descend, the two threaded rotating shafts 201a rotate in opposite directions, and the two threaded rings 204b move toward each other, which in turn causes the two rotating clamps 203a to rotate and approach each other until they are completely vertical and cannot rotate further. At this time, the threaded ring 204b continues to move to move the movable ring and the rotating clamp 203a as a whole until the roller 203a-2 on the rotating clamp 203a is in contact with the rail body 104.

[0039] Furthermore, the connecting assembly 205 includes two rotating brackets 205a arranged on the limiting rod 204a, and a rotating member 205b arranged on the two rotating brackets 205a and connected to the rail welding machine 103; wherein, the bottom end of the rotating bracket 205a is rotatably connected to the limiting rod 204a through a collar, and the top end of the rotating bracket 205a is fixedly connected to the rotating member 205b. The top ends of the two rotating brackets 205a on the same side are gathered together, and the bottom ends are dispersed and dispersed at the edges of both ends of the limiting rod 204a, and are not within the active range of the threaded ring 204b to avoid affecting normal use.

[0040] When in use, the staff controls the mobile crane 101 to move to a suitable position, and then operates the mobile crane 101 to lower the rail welding machine 103 to the position where the rail body 104 needs to be welded. Since the rotating bracket 205a, the threaded rotating shaft 201a and other structures are in a naturally vertical state when not in contact with the rail body 104, and since the height of the threaded rotating shaft 201a before welding is lower than the height of the bottom of the rail welding machine 103, during the process of the rail welding machine 103 descending, the threaded rotating shaft 201a and the threaded roller 201c will contact the rail body 104 fixed on site in advance. Since the two rotating plates on the same side are in an unfolded state before welding, a larger space is provided to contact the rail body 104. When the threaded roller 201c has come into contact with the rail body 104, the rail welding machine 103 continues to descend, which will drive the two rotating brackets 205a to rotate and push the two threaded rotating shafts 201a away from each other. Since the threaded roller 201c is in contact with the rail body 104, when the rotating bracket 205a pushes the threaded rotating shaft 201a away, the threaded roller 201c and the threaded rotating shaft 201a will rotate on the rail body 104. The rotation of the threaded rotating shaft 201a will drive the two threaded rings 204b to move toward each other, and then drive the rotating rod 204c-2 to rotate, so that the limiting slider 204c-1 slides downward in the limiting slide groove 204c, thereby pushing the two rotating clamping plates 203a to rotate toward each other. When the threaded ring 204b moves to a certain distance, the limiting slider 204c-1 is at the lowest point of the limiting slide groove 204c, and the rotating clamping plate 203a has rotated to a vertical state. The movable upper convex rod 203b rotates synchronously. When the rotating clamping plate 203a and the upper convex rod 203b are in a vertical state, the upper convex rod 203b will squeeze the lower convex plate 202c-2 and the movable plate 202c-1 to move upward, so that the lower convex plate 202c-2 is out of the range of the movable notch 203c. At this time, the threaded rotating shaft 201a and the threaded roller 201c continue to rotate to continue to drive the threaded ring 204b to move. The movement of the threaded ring 204b at this time will push the movable sleeve ring 202c-2 to move upward. 02b slides on the bearing ring 202a toward the rail body 104 until the roller 203a-2 on the rotating clamping plate 203a fits with the surface of the rail body 104, and then the rotating clamping plate 203a and the roller 203a-2 can fit and slide on the surface of the rail body 104 during the process of the rail welding machine 103 continuing to descend, thereby ensuring the stability of the rail welding machine 103 when it continues to descend, so that it can stably move downward to contact with the rail body 104 for welding; When welding is completed, the staff operates the mobile crane 101 to drive the rail welding machine 103 to rise, which will then drive the threaded roller 201c and the threaded rotating shaft 201a to rotate in the opposite direction, causing the two threaded rings 204b to move in the opposite direction, thereby pulling the rotating rod 204c-2 to drive the two rotating clamps 203a to unfold. As the rail welding machine 103 continues to rise, the threaded ring 204b will move to the initial position, and the rotating clamp 203a will also rotate and unfold to the initial state for the next welding. When the rail welding machine 103 rises to a height where the threaded rotating shaft 201a is higher than the rail body 104, the rotating bracket 205a, the threaded rotating shaft 201a and other structures will be in a naturally vertical state again.

[0041] The remaining structures are the same as those of Example 1.

[0042] Example 3, reference Figure 1-Figure 9, which is the third embodiment of the present invention, and this embodiment is different from the second embodiment in that: the rail welding machine 103 includes a welding machine body 103a arranged below the hook 102, a central axis 103b arranged on the welding machine body 103a, and a hanger 103c arranged on the central axis 103b and connected to the hook 102, a welding rail joint 103d connected to the rail body 104 is arranged on the welding machine body 103a, a group of rail clamping rollers 103e are arranged at one end of the welding machine body 103a, a hydraulic cylinder 103f is arranged on the rail welding machine 103, and two rotating members 205b are respectively fixedly connected to the two ends of the central axis 103b; wherein, the front and rear parts of the rail welding machine 103 are rotatably connected through the central axis 103b, the hanger 103c is fixedly connected to the middle of the central axis 103b, the hanger 103c is hung on the hook 102, and the welding rail joint 103d is divided into two parts, which are symmetrically arranged and fixedly connected to the right half of the rail welding machine 103.

[0043] During use, after the rail welding machine 103 stably descends to a suitable position, the staff controls the hydraulic cylinder 103f to start, driving the front and rear parts of the rail welding machine 103 to rotate downward toward each other, so that the rail welding joint 103d and the rail clamping roller 103e are clamped on the surface of the rail body 104, and the welding operation can be carried out. After the welding is completed at this location, the staff controls the rail welding machine 103 to release the restriction on the rail body 104, and then controls the mobile crane 101 to make the rail welding machine 103 rise upward, and then moves it to the next section that needs to be welded to repeat the welding operation.

[0044] The remaining structure is the same as that of Example 2.

[0045] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A railway dedicated line track brazing equipment, characterized in that: include, A main unit (100) comprises a mobile crane (101), a hook (102) arranged on the mobile crane (101), a rail welding machine (103) arranged on the hook (102), and a rail body (104) arranged on the rail welding machine (103); and, The pre-welding positioning unit (200) comprises a thread rolling assembly (201) arranged above the rail body (104) and located on both sides of a rail welding machine (103), two collar assemblies (202) arranged on the thread rolling assembly (201), a rotating clamping assembly (203) arranged on the collar assembly (202), a thread movable assembly (204) arranged on the thread rolling assembly (201) and connected to the rotating clamping assembly (203), and a connecting assembly (205) arranged on the thread rolling assembly (201) and connected to the rail welding machine (103).

2. The railway dedicated line track brazing equipment according to claim 1, characterized in that: The thread rolling assembly (201) comprises a threaded rotating shaft (201a) arranged above the rail body (104), two annular grooves (201b) arranged on the threaded rotating shaft (201a), a threaded roller (201c) arranged on the threaded rotating shaft (201a) and located between the two annular grooves (201b), and connecting plates (201d) arranged at both ends of the threaded rotating shaft (201a).

3. The railway dedicated line track brazing equipment according to claim 1, characterized in that: The thread rolling assembly (201) comprises a threaded rotating shaft (201a) arranged above the rail body (104), two annular grooves (201b) arranged on the threaded rotating shaft (201a), a threaded roller (201c) arranged on the threaded rotating shaft (201a) and located between the two annular grooves (201b), and connecting plates (201d) arranged at both ends of the threaded rotating shaft (201a).

4. The railway dedicated line track brazing equipment according to claim 3, characterized in that: The collar assembly (202) further comprises a movable plate (202c-1) arranged inside the vertical movable groove (202c), a lower convex plate (202c-2) arranged on the movable plate (202c-1), and a telescopic spring (202c-3) arranged on the movable plate (202c-1) and connected to the inner wall of the vertical movable groove (202c).

5. The railway dedicated line track brazing equipment according to claim 4, characterized in that: The rotating clamping assembly (203) comprises a rotating clamping plate (203a) arranged on the movable collar (202b), an upper convex rod (203b) arranged on the rotating clamping plate (203a) and in contact with a lower convex plate (202c-2), and a movable notch (203c) arranged on the movable collar (202b) and cooperating with the upper convex rod (203b); the movable collar (202b) is provided with a transverse movable groove (203d) cooperating with the lower convex plate (202c-2).

6. The railway dedicated line track brazing equipment according to claim 5, characterized in that: The rotating clamping assembly (203) further comprises an opening (203a-1) arranged on the rotating clamping plate (203a), and a roller (203a-2) arranged inside the opening (203a-1); the transverse movable groove (203d) is connected to the movable notch (203c); and the top end of the lower protruding rod extends to the inside of the transverse movable groove (203d).

7. The railway dedicated line track brazing equipment according to claim 6, characterized in that: The threaded movable assembly (204) comprises a limiting rod (204a) arranged between the two connecting plates (201d) and located above the threaded rotating shaft (201a), two threaded rings (204b) arranged on the threaded rotating shaft (201a) and connected to the limiting rod (204a), and a limiting sliding groove (204c) arranged on the rotating clamping plate (203a).

8. The rail brazing equipment for railway dedicated lines according to claim 7, characterized in that: The threaded movable component (204) further comprises a limiting sliding block (204c-1) arranged inside the limiting sliding groove (204c), and a rotating rod (204c-2) arranged between the limiting sliding block (204c-1) and the threaded ring (204b).

9. The railway dedicated line track brazing equipment according to claim 8, characterized in that: The connection assembly (205) comprises two rotating brackets (205a) arranged on the limiting rod (204a), and a rotating member (205b) arranged on the two rotating brackets (205a) and connected to the rail welding machine (103).

10. The rail brazing equipment for railway dedicated lines according to claim 9, characterized in that: The rail welding machine (103) comprises a welding machine body (103a) arranged below the hook (102), a central axis (103b) arranged on the welding machine body (103a), and a hanger (103c) arranged on the central axis (103b) and connected to the hook (102); a welding rail joint (103d) connected to a rail body (104) is arranged on the welding machine body (103a); a group of rail clamping rollers (103e) is arranged at one end of the welding machine body (103a); a hydraulic cylinder (103f) is arranged on the rail welding machine (103); and the two rotating parts (205b) are respectively fixedly connected to the two ends of the central axis (103b).

Images