Wheel set axle box dismounting device

Abstract

The present application relates to the field of steel smelting equipment, and in particular to a molten iron car wheel pair axle box dismounting device. The molten iron car wheel pair axle box dismounting device comprises a movable plate car, a rack, a lifting seat, a bearing pull code, an axle box pull claw and a driving assembly; the rack is connected with the movable plate car, the lifting seat is slidably connected with the rack along a first direction, the bearing pull code is movably connected with the lifting seat along a second direction, and the axle box pull claw is connected with the bearing pull code; the driving assembly is used for driving the lifting seat to slide relative to the rack along the first direction and for driving the bearing pull code to move relative to the lifting seat along the second direction; wherein the bearing pull code is used for abutting against the end of the bearing, the axle box pull claw is used for being connected with the outer periphery of the axle box, and the first direction is perpendicular to the second direction. The molten iron car wheel pair axle box dismounting device has simple structure and convenient operation, can reduce the preparation work before dismounting, thereby improving the work efficiency, can also improve the operation safety and reduce the damage probability of the equipment in the operation process.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of steel smelting equipment, in particular to a molten iron wheelset axle box dismounting device. BACKGROUND

[0002] Currently, the molten iron wheelset axle box needs to be periodically overhauled, such as replacing the limit bearing, and such overhauls necessarily require the axle box and bearing to be sequentially dismounted. However, the existing technology uses a mobile bearing dismounting machine to install the axle box claw, aligns the axle box hole on the track with the double-end screw, installs and levels, then pulls out and dismounts the axle box, dismounts the axle box claw and connecting screw, replaces the bearing pull code and dismounts the bearing. Such a method has the following problems:

[0003] It is time-consuming and labor-intensive, difficult to align, and inefficient; the axle box claw and screw are frequently dismounted and replaced, and the axle box claw needs to be aligned with the axle box hole every time it is installed, which is very tedious and labor-intensive due to the fact that the wheelset is not completely vertical and the wheelset heights are not completely the same, and the four screw holes need to be constantly adjusted;

[0004] There is a safety hazard; when aligning the double-end screw, a crowbar or other method is often used to forcibly align and install it, which causes the screw to be abnormally stressed, and when pulling out the axle box, it not only receives a large axial force but also a radial force at all times, which can easily cause the small-diameter end of the screw to be twisted off; moreover, the instantaneous force of the twisted-off screw is large, which poses a risk of injury to personnel and objects, and the dismounting and replacement of the twisted-off screw is troublesome and requires a welder to weld the screw to remove the residual threads. SUMMARY

[0005] The present application aims to provide a molten iron wheelset axle box dismounting device that is simple in structure, easy to operate, can reduce the preparation work before dismounting, thereby improving work efficiency, and can improve the safety of operation and reduce the probability of damage to equipment during operation.

[0006] The embodiments of the present application can be implemented as follows:

[0007] The present application provides a molten iron wheelset axle box dismounting device, which comprises a movable plate car, a rack, a lifting seat, a bearing pull code, an axle box claw, and a driving assembly;

[0008] The rack is connected to the movable plate car, the lifting seat is slidably connected to the rack along a first direction, the bearing pull code is movably connected to the lifting seat along a second direction, and the axle box claw is connected to the bearing pull code;

[0009] The driving assembly is used to drive the lifting seat to slide relative to the rack along the first direction and to drive the bearing pull code to move relative to the lifting seat along the second direction;

[0010] The bearing pull code is used for abutting against the end of the bearing, the shaft box pull claw is used for connecting to the outer periphery of the shaft box, and the first direction is perpendicular to the second direction.

[0011] In an optional embodiment, the molten iron wheel pair shaft box dismounting device further comprises a bearing base and a bearing table; the bearing base is connected with the movable plate car, the bearing table is movably connected with the bearing base along the first direction, and the driving assembly is used for driving the bearing table to move relative to the bearing base along the first direction.

[0012] In an optional embodiment, the bearing base is movably connected with the movable plate car along the second direction.

[0013] In an optional embodiment, the driving assembly comprises a hydraulic pump, a first hydraulic cylinder body, a second hydraulic cylinder body, a third hydraulic cylinder body and a fourth hydraulic cylinder body, and the first hydraulic cylinder body, the second hydraulic cylinder body, the third hydraulic cylinder body and the fourth hydraulic cylinder body are all communicated with the hydraulic pump.

[0014] The first hydraulic cylinder body is connected with the rack, and is used for driving the lifting seat to slide relative to the rack along the first direction;

[0015] The second hydraulic cylinder body is connected with the lifting seat, and is used for driving the bearing pull code to move relative to the lifting seat along the second direction;

[0016] The third hydraulic cylinder body is connected with the bearing base, and is used for driving the bearing table to move relative to the bearing base along the first direction;

[0017] The fourth hydraulic cylinder body is connected with the rack or the movable plate car, and is used for driving the bearing base to move relative to the movable plate car along the second direction.

[0018] In an optional embodiment, the molten iron wheel pair shaft box dismounting device further comprises a bearing positioning seat, the bearing positioning seat is connected with the lifting seat, and the bearing positioning seat is used for being connected with the bearing.

[0019] In an optional embodiment, the bearing positioning seat is movably connected with the lifting seat along the second direction;

[0020] The driving assembly further comprises a fifth hydraulic cylinder body communicated with the hydraulic pump, the fifth hydraulic cylinder body is connected with the lifting seat, and the fifth hydraulic cylinder body is used for driving the bearing positioning seat to move relative to the lifting seat along the second direction.

[0021] In an optional embodiment, the molten iron wheel pair shaft box dismounting device further comprises a connecting sleeve, the shaft box pull claw is connected with the connecting sleeve, and the connecting sleeve is sleeved on the bearing pull code.

[0022] In an optional embodiment, the shaft box pull claw is movably connected with the bearing pull code, and has a first position located on the side of the bearing pull code away from the rack and a second position located on the side of the bearing pull code along the second direction.

[0023] In the optional implementation, along the second direction, the bearing pull code is provided with the movable hole on both sides, and the rotating connection shaft is installed in the movable hole; the shaft box pull claw is partially accommodated in the movable hole and is in rotating connection with the rotating connection shaft.

[0024] In the optional implementation, the shaft box pull claw comprises a rotating connection part, a bearing part and a limiting part.

[0025] The rotating connection part is provided with a rotating connection hole matched with the rotating connection shaft; the bearing part is connected with the rotating connection part and is used for connecting with the shaft box; the limiting part is connected with the bearing part, and the bearing part is used for bearing against the bearing pull code to limit the rotation of the shaft box pull claw relative to the bearing pull code.

[0026] The molten iron wheel pair shaft box dismounting device further comprises an elastic member sleeved on the rotating connection shaft; along the axis direction of the rotating connection shaft, the limiting part and the elastic member are located at both ends of the bearing part, and the elastic member is used for enabling the limiting part to have a bearing tendency against the bearing pull code.

[0027] The molten iron wheel pair shaft box dismounting device provided by the embodiment has the following beneficial effects:

[0028] The molten iron wheel pair shaft box dismounting device comprises a movable plate vehicle, a rack, a lifting seat, a bearing pull code, a shaft box pull claw and a driving assembly; the rack is connected with the movable plate vehicle, the lifting seat is slidably connected to the rack along a first direction, the bearing pull code is movably connected to the lifting seat along a second direction, and the shaft box pull claw is connected with the bearing pull code; the driving assembly is used for driving the lifting seat to slide relative to the rack along the first direction and is used for driving the bearing pull code to move relative to the lifting seat along the second direction; wherein the bearing pull code is used for bearing against the end part of the bearing, the shaft box pull claw is used for connecting with the outer periphery of the shaft box, and the first direction is perpendicular to the second direction. The molten iron wheel pair shaft box dismounting device has the advantages of simple structure, convenient operation, reduced preparation work before dismounting, improved work efficiency, improved operation safety and reduced damage probability of equipment in the operation process. BRIEF DESCRIPTION OF DRAWINGS

[0029] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiments. It should be understood that the following drawings only show some embodiments of the present application, and therefore should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can also be obtained without creative labor on the basis of these drawings.

[0030] Figure 1 The structure schematic diagram of the molten iron wheel pair shaft box dismounting device provided by the embodiment is shown from the first perspective.

[0031] Figure 2The second perspective view of the structure of the wheel-axle box dismounting device of the molten iron car is provided for the embodiment;

[0032] Figure 3 The installation diagram of the bearing positioning seat is provided for the embodiment;

[0033] Figure 4 The structure diagram of the bearing pull code and the axle box pull claw is provided for the embodiment;

[0034] Figure 5 The position diagram of the bearing pull code and the second hydraulic cylinder body is provided for the embodiment;

[0035] Figure 6 The structure diagram of the bearing pull code and the axle box pull claw is provided for the embodiment;

[0036] Figure 7 The structure diagram of the bearing pull code is provided for the embodiment;

[0037] Figure 8 The structure diagram of the axle box pull claw is provided for the embodiment;

[0038] Figure 9 The connection diagram of the axle box pull claw and the bearing pull code when the axle box pull claw is in the first position is provided for the embodiment;

[0039] Figure 10 The cross-sectional diagram of the axle box pull claw and the bearing pull code when the axle box pull claw is in the first position is provided for the embodiment;

[0040] Figure 11 The connection diagram of the axle box pull claw and the bearing pull code when the axle box pull claw is in the second position is provided for the embodiment;

[0041] Figure 12 The cross-sectional diagram of the axle box pull claw and the bearing pull code when the axle box pull claw is in the second position is provided for the embodiment.

[0042] Icon: 100-wheel-axle box dismounting device of the molten iron car; 110-mobile plate car; 120-rack; 130-lifting seat; 140-bearing pull code; 150-axle box pull claw; 160-driving assembly; 171-bearing base; 172-bearing table; 161-hydraulic pump; 162-first hydraulic cylinder body; 163-second hydraulic cylinder body; 164-third hydraulic cylinder body; 165-fourth hydraulic cylinder body; 180-bearing positioning seat; 166-fifth hydraulic cylinder body; 141-moving hole; 142-rotary connection shaft; 151-rotary connection part; 152-abutting part; 153-limiting part; 154-rotary connection hole; 143-elastic member. DETAILED DESCRIPTION

[0043] At present, the wheel set bearing axle box of the hot metal car needs to be periodically overhauled, such as replacing the limiting bearing, and such overhauling work inevitably needs to disassemble the axle box and the bearing in turn, but the existing technology is to use a movable bearing dismounting machine to cooperate with a double-end screw rod to install an axle box pull claw 150, the double-end screw rod is aligned with the wheel set axle box hole on the track, after installation and leveling, the axle box is pulled out and then the axle box pull claw 150 and the connecting screw rod are dismounted, and the bearing is dismounted by replacing the bearing pull code 140 and cooperating with the screw rod. Such a mode has the following problems:

[0044] It is time-consuming and labor-consuming, difficult to align, and low in efficiency; the axle box pull claw 150 and the screw rod are frequently dismounted and replaced, and the wheel set axle box hole needs to be aligned every time the axle box pull claw 150 is installed, and since the wheel set is placed on the track which is not completely vertical and the wheel set heights are not completely the same, the alignment of the four screw holes is very tedious and labor-consuming and needs to be constantly adjusted;

[0045] There is a safety hazard; when the double-end screw rod is aligned, in order to be installed in place, a crowbar or the like is often used to forcibly align and install, which makes the screw rod abnormally stressed, and when the axle box is pulled out, not only a large axial force is received but also a radial force always exists, which easily causes the small-diameter end of the screw rod to be twisted off; the instantaneous force is large when the screw rod is twisted off, and there is a risk of personnel and object impact injury, and the dismounting and replacing work of the twisted-off screw rod is troublesome and needs to be cooperated with a welder to weld the screw rod to rotate out the residual screw threads.

[0046] In view of the above problems, please refer to Figure 1 and Figure 2 The present application provides a hot metal car wheel set axle box dismounting device 100, which has the advantages of simple structure, convenient operation, reduced preparation work before dismounting, improved work efficiency, improved operation safety, and reduced damage probability of equipment during operation.

[0047] To make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. The components of the embodiments of the present application described and shown in the drawings can be arranged and designed in various different configurations.

[0048] Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the claimed application, but only represents selected embodiments of the present application. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in the present application without creative labor are within the scope of protection of the present application.

[0049] It should be noted that: similar reference numbers and letters represent similar items in the following drawings, therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0050] In the description of the present application, it should be noted that if the terms "upper", "lower", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the product of the present application is usually placed, 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 particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0051] In addition, if the terms "first", "second" and the like appear, they are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0052] It should be noted that the features in the embodiments of the present application can be combined with each other without conflict.

[0053] Please refer to Figures 1-4 The present embodiment provides a molten iron wheel pair axle box dismounting device 100, which comprises a movable plate car 110, a rack 120, a lifting seat 130, a bearing pull code 140, an axle box pull claw 150 and a driving assembly 160.

[0054] The rack 120 is connected with the movable plate car 110, and the lifting seat 130 is slidably connected with the rack 120 along a first direction (such as the direction indicated by the arrow Z in the middle). Figure 1 The bearing pull code 140 is movably connected with the lifting seat 130 along a second direction (such as the direction indicated by the arrow X in the middle), and the axle box pull claw 150 is connected with the bearing pull code 140. Figure 1

[0055] The driving assembly 160 is used to drive the lifting seat 130 to slide relative to the rack 120 along the first direction, and to drive the bearing pull code 140 to move relative to the lifting seat 130 along the second direction.

[0056] Among them, the bearing pull code 140 is used to abut against the end of the bearing, the axle box pull claw 150 is used to connect to the outer periphery of the axle box, and the first direction is perpendicular to the second direction.

[0057] It should be noted that in the molten iron wheel pair axle box, the outer periphery of the axle box is provided with a clamping groove, so that when dismounting the axle box, the dismounting structure can be clamped into the clamping groove, and the axle box can be pulled out along the axis direction; and when dismounting the bearing, one end of the bearing needs to be pressed from the inside, and the bearing can be pulled out along the axis direction.

[0058] Specifically, when dismounting the axle box and the bearing by using the molten iron wheel pair axle box dismounting device 100, the operation should be performed in the order of dismounting the axle box first and then dismounting the bearing, and the detailed steps are as follows: ​

[0059] Firstly, according to the disassembled shaft box and bearing parameters, it is determined whether the assembled bearing pull code 140 and shaft box pull claw 150 are suitable, if not, the suitable bearing pull code 140 and shaft box pull claw 150 can be replaced; if the shaft box pull claw 150 is not suitable, in addition to the above-mentioned replacement mode, the shaft box pull claw 150 can be adjusted by adjusting the bolt and adjusting the adjusting gasket connected to the shaft box pull claw 150 to adapt to the size of the shaft box to be disassembled; In this process, the overall device also needs to be detected to confirm that the functions of each structure are normal;

[0060] Subsequently, the driving assembly 160 is operated to move the lifting seat 130 in the first direction, which is the vertical direction in this embodiment. The purpose of this operation is to move the bearing pull claw connected to the bearing pull code 140 above the shaft box to be disassembled;

[0061] Then, the movable plate car 110 is moved to the appropriate position and its position is locked to prevent accidents or disassembly accidents during subsequent operations due to changes in the position of the movable plate car 110;

[0062] The driving assembly 160 is operated to move the lifting seat 130 downward, and in this process, it is confirmed that the movement direction can make the shaft box pull claw 150 clamped into the clamping groove on the outer periphery of the shaft box; It should be noted that after the shaft box pull claw 150 is clamped into the clamping groove on the outer periphery of the shaft box, the adjusting gasket connected to the shaft box pull claw 150 can be adjusted by adjusting the bolt to make the adjusting gasket abut against the outer periphery of the shaft box, which is to reduce the shaking during the pulling process, thereby improving the safety of the operation;

[0063] The driving assembly 160 is operated to move the bearing pull code 140 in the second direction, so that the shaft box pull claw 150 and the shaft box can be moved in the second direction synchronously in this way, thereby pulling out the shaft box and disassembling it; It should be noted that the movable plate car 110 can also be moved in this process, in addition, when disassembling the shaft box, it is necessary to prevent it from falling to the ground under the action of gravity after being separated from the bearing, thereby causing damage to the shaft box or the ground, therefore, when disassembling the shaft box, the corresponding bearing structure or protection structure needs to be set based on the position where the shaft box may fall to protect it;

[0064] After the shaft box is removed, the bearing can be removed. At this time, it needs to be noted that the shaft box puller 150 is detachably connected to the bearing puller 140 or movably connected to the bearing puller 140. The purpose of such a setting mode is to avoid motion interference of the bearing puller 140 and the bearing during the disassembly of the bearing by adjusting the position of the shaft box puller 150 or removing it from the bearing puller 140. Therefore, after adjusting the position of the shaft box puller 150 or removing it from the bearing puller 140, the disassembly work of the bearing can be carried out.

[0065] Firstly, the height of the lifting seat 130 needs to be adjusted so that it is located above the bearing. Then, the movable plate trolley 110 is operated to move to a suitable position. At this time, the position of the bearing puller 140 is directly above the inner side of the bearing.

[0066] Subsequently, the driving assembly 160 is operated to lower the lifting seat 130, so that the bearing puller 140 can abut or be sleeved on the inner side of the bearing. When the bearing puller 140 moves along the side of the second direction towards the direction of the rack 120 under the action of the driving assembly 160, the bearing can be pulled to be removed.

[0067] It needs to be noted that, as the same as the disassembly steps of the shaft box, when the bearing is pulled, the bearing needs to be moved along the second direction towards the rack 120 to be removed. At this time, the bearing puller 140 can be moved by operating the driving assembly 160, or the movable plate trolley 110 can be moved. In addition, when the bearing is disassembled, it also needs to be protected to prevent it from being damaged after being disassembled and falling to the ground.

[0068] From the above content, it can be known that when the shaft box and bearing are disassembled, the wheel pair shaft box dismounting device 100 can drive each structure to move by the driving assembly 160, so as to improve the operation efficiency and reduce the labor intensity of the workers in this way. Therefore, compared with the prior art, the wheel pair shaft box dismounting device 100 does not need to rely on the screw to be connected in position when the shaft box and bearing are disassembled, so as to improve the operation efficiency and avoid the breakage or damage of the screw.

[0069] Therefore, the wheel pair shaft box dismounting device 100 has simple structure and convenient operation, can reduce the preparation work before disassembly, improve the work efficiency, improve the safety of operation, and reduce the damage probability of the equipment during operation.

[0070] Further, please refer to Figures 1-4In the embodiment, in order to prevent the shaft box or the bearing from falling to the ground under the action of gravity after being detached, thereby causing damage to the shaft box, the bearing or the ground, when the shaft box or the bearing is detached, a corresponding bearing structure or protection structure needs to be arranged based on the position where the shaft box may fall to protect it; based on this, the wheel shaft box dismounting device 100 further comprises a bearing base 171 and a bearing table 172; the bearing base 171 is connected with the movable plate car 110, the bearing table 172 is movably connected with the bearing base 171 along a first direction, and the driving assembly 160 is used to drive the bearing table 172 to move along the first direction relative to the bearing base 171; in this way, the detached shaft box or bearing can be supported by the bearing table 172 to protect it;

[0071] Since the sizes of the shaft box or the bearing are various, the falling position of the shaft box or the bearing during dismounting is uncertain, and in the above structure, since the bearing table 172 is movably connected with the bearing base 171 along the first direction, the supporting height of the bearing table 172 is adjustable; on this basis, in order to adapt to different falling positions, the bearing base 171 is movably connected with the movable plate car 110 along a second direction; in this way, the bearing table 172 can not only adapt to the support of the shaft box and the bearing at different heights, but also adapt to the support of the shaft box and the bearing at different positions along the first direction, thereby improving the application range; in addition, since the bearing base 171 is connected with the movable plate car 110, the detached shaft box and the bearing can also be moved along with the movement of the movable plate car 110 to shift the position, thereby reducing the labor intensity of the workers and reducing the carrying work of the detached bearing and the shaft box.

[0072] It should be noted that based on the above, when the movable plate car 110 is configured, it can also have driving power to facilitate its shifting and adjusting position in the work site, and can also play a role in assisting the pulling of the shaft box and the bearing, in addition, it can also facilitate the carrying of the detached shaft box and the bearing to shift.

[0073] Further, please refer to Figures 1-5 In the embodiment, based on the above, when the driving assembly 160 is configured, it needs to drive the lifting seat 130 and the bearing pulling code 140 to move, in addition, it also needs to drive the bearing base 171 and the bearing table 172 to move, therefore, the driving assembly 160 can comprise a hydraulic pump 161, a first hydraulic cylinder 162, a second hydraulic cylinder 163, a third hydraulic cylinder 164 and a fourth hydraulic cylinder 165, the first hydraulic cylinder 162, the second hydraulic cylinder 163, the third hydraulic cylinder 164 and the fourth hydraulic cylinder 165 are all in communication with the hydraulic pump 161;

[0074] The first hydraulic cylinder body 162 is connected with the rack 120 and is used to drive the lifting seat 130 to slide relative to the rack 120 along a first direction; the second hydraulic cylinder body 163 is connected with the lifting seat 130 and is used to drive the bearing pull code 140 to move relative to the lifting seat 130 along a second direction; the third hydraulic cylinder body 164 is connected with the bearing base 171 and is used to drive the bearing table 172 to move relative to the bearing base 171 along the first direction; and the fourth hydraulic cylinder body 165 is connected with the rack 120 or the movable plate vehicle 110 and is used to drive the bearing base 171 to move relative to the movable plate vehicle 110 along the second direction. It should be noted that, in order to improve the movement stability of the bearing pull code 140, the second hydraulic cylinder body 163 is provided in a plurality of intervals, and in this embodiment, four second hydraulic cylinder bodies 163 are arranged, as shown in FIG. 2, which are connected to the A, B, C and D positions on the bearing pull code 140. Figure 5

[0075] It should be noted that, in this embodiment, the hydraulic power source is used to drive the movement of the above-mentioned structures, and in other embodiments of the present application, the hydraulic power can be adjusted to the air pressure power in the prior art or to the linear motion module, such as a lead screw transmission or other linear motion module.

[0076] Please refer to Figures 1-5 In order to position the bearing when disassembling the bearing, the molten iron wheel bearing dismounting and mounting device 100 further comprises a bearing positioning seat 180, which is connected with the lifting seat 130 and is used to be connected with the bearing. In this way, the bearing can be conveniently removed and mounted. Specifically, the bearing positioning seat 180 is movably connected with the lifting seat 130 along the second direction; the driving assembly 160 further comprises a fifth hydraulic cylinder body 166 in communication with the hydraulic pump 161, which is connected with the lifting seat 130 and is used to drive the bearing positioning seat 180 to move relative to the lifting seat 130 along the second direction.

[0077] Further, as known from the above, in this embodiment, the shaft box pull claw 150 is detachably connected with the bearing pull code 140 or movably connected with the bearing pull code 140. In this way, the position of the shaft box pull claw 150 can be adjusted or removed from the bearing pull code 140 to avoid interference with the connection between the bearing pull code 140 and the bearing when disassembling the bearing;

[0078] ​Based on this, when the shaft box puller 150 is detachably connected to the bearing puller 140, the bearing puller 140 can be detachably connected to the shaft box puller 150 by the connecting bolt; or the molten iron wheel axle box dismounting device 100 further comprises a connecting sleeve, the shaft box puller 150 is connected to the connecting sleeve, and the connecting sleeve is sleeved on the bearing puller 140, that is, when the bearing puller is installed, the connecting sleeve is sleeved on the bearing puller 140, and when it is removed, the connecting sleeve is removed from the bearing puller 140.

[0079] Please refer to Figures 1-12 When the shaft box puller 150 is movably connected to the bearing puller 140, the purpose is to adjust the position to avoid interference with the work of dismounting the bearing, at this time, the movable way can adopt the way of sliding or rotating relative to the bearing puller 140;

[0080] Please refer to Figures 1-12 In the following, the shaft box puller 150 is taken as an example to illustrate the way of rotating relative to the bearing puller 140:

[0081] Specifically, the shaft box puller 150 is rotatably connected to the bearing puller 140, and has a first position located on the side of the bearing puller 140 away from the rack 120, and a second position located on the side of the bearing puller 140 along the second direction.

[0082] On the basis of the above structure, in order to rotatably connect the shaft box puller 150 and the bearing puller 140, therefore, along the second direction, the two sides of the bearing puller 140 are provided with movable holes 141, and the movable holes 141 are provided with rotating connecting shafts 142; part of the shaft box puller 150 is accommodated in the movable hole 141 and is rotatably connected with the rotating connecting shaft 142;

[0083] Therefore, by rotatably connecting the shaft box puller 150 and the rotating connecting shaft 142, the rotatable connection between the shaft box puller 150 and the bearing puller 140 is realized, wherein when the shaft box puller 150 is in the first position, the shaft box is pulled, and when it is in the second position, the interference with the work of dismounting the bearing is avoided;

[0084] On the basis of this, in order to limit the rotation of the shaft box puller 150 in the first position and the second position, the shaft box puller 150 comprises a rotating connecting part 151, an abutting part 152 and a limiting part 153;

[0085] The rotating connecting part 151 is provided with a rotating connecting hole 154 matched with the rotating connecting shaft 142; the abutting part 152 is connected with the rotating connecting part 151 and is used for connecting with the shaft box; the limiting part 153 is connected with the abutting part 152, and the abutting part 152 is used for abutting with the bearing puller 140 to limit the rotation of the shaft box puller 150 relative to the bearing puller 140;

[0086] The molten iron wheel axle box dismounting device 100 further comprises an elastic member 143 sleeved on the rotating connecting shaft 142; along the axial direction of the rotating connecting shaft 142, the limiting portion 153 and the elastic member 143 are located at both ends of the abutting portion 152, and the elastic member 143 is used to make the limiting portion 153 have a tendency to abut against the bearing drawbar 140;

[0087] Therefore, by the above structure, the setting mode of the elastic member 143 is adopted, so that the axle box drawbar 150 has a tendency to move towards the position abutting against the bearing drawbar 140; that is, when it is in the first position, at this time, under the action of the elastic member 143, it moves upward, so that the limiting portion 153 abuts against the bearing drawbar 140, at this time, the bearing drawbar can be connected with the axle box, and in the process of pulling the axle box, due to the setting of the limiting portion 153, the rotation of the axle box drawbar 150 is limited, at this time, it can keep the first position unchanged, so as to complete the pulling and dismounting of the axle box;

[0088] When it is needed to adjust it from the first position to the second position, the operator can press the axle box drawbar 150 to move towards the direction of compressing the elastic member 143, so that the limiting portion 153 is separated from the abutting against the bearing drawbar 140, at this time, the axle box drawbar 150 can rotate relative to the bearing drawbar 140, so that when it rotates to the side surface of the bearing drawbar 140, the axle box drawbar 150 is released, so that the limiting portion 153 abuts against the side surface of the bearing drawbar 140, so as to keep it in the state of the second position, so as to avoid interference with the dismounting work of the bearing.

[0089] It should be noted that in the above structure, when the axle box drawbar 150 is in the first position, the surface abutting against the bearing drawbar 140 is the first side surface, and when the axle box drawbar 150 is in the second position, the surface abutting against the bearing drawbar 140 is the second side surface, and in order to make the limiting portion 153 be able to abut against the bearing drawbar 140 under the elastic action of the elastic member 143 in the first position and the second position, so as to limit the rotation in the above position, therefore, the first side surface and the second side surface of the bearing drawbar 140 are arranged around the axle box of the rotating connecting shaft 142, and the first side surface and the second side surface in the embodiment are arranged vertically, and in other embodiments of the present application, on the basis of realizing the above effect, the first side surface and the second side surface can also be other angles.

[0090] The above is only a specific embodiment of the present application, but the protection scope of the present application is not limited thereto, any changes or replacements within the technical range disclosed by the present application can be easily thought by those skilled in the art, which should be covered in the protection scope of the present application.

Claims

1. A device for disassembling and assembling axle boxes for molten iron wheelsets, characterized in that: The iron molten iron wheel axle box disassembly and assembly device includes a movable flatcar, a frame, a lifting seat, a bearing puller, an axle box puller, and a drive assembly. The frame is connected to the movable trolley, the lifting seat is slidably connected to the frame along a first direction, the bearing pull bracket is movably connected to the lifting seat along a second direction, and the axle box pull claw is connected to the bearing pull bracket; The drive assembly is used to drive the lifting seat to slide relative to the frame along the first direction, and to drive the bearing puller to move relative to the lifting seat along the second direction; Wherein, the bearing puller is used to abut against the end of the bearing, the axle box pull claw is used to connect to the outer periphery of the axle box, and the first direction is perpendicular to the second direction; The drive assembly includes a hydraulic pump, a first hydraulic cylinder, a second hydraulic cylinder, a third hydraulic cylinder, and a fourth hydraulic cylinder. The first, second, third, and fourth hydraulic cylinders are all connected to the hydraulic pump. The first hydraulic cylinder is connected to the frame and is used to drive the lifting seat to slide relative to the frame along the first direction. The second hydraulic cylinder is connected to the lifting seat and is used to drive the bearing puller to move relative to the lifting seat along the second direction. The third hydraulic cylinder is connected to the bearing base and is used to drive the bearing platform to move relative to the bearing base along the first direction. The fourth hydraulic cylinder is connected to the frame or the movable trolley and is used to drive the bearing base to move relative to the movable trolley along the second direction. The axle box pull claw is movably connected to the bearing pull bracket, and has a first position located on the side of the bearing pull bracket away from the frame, and a second position located on the side of the bearing pull bracket along the second direction; Along the second direction, movable holes are provided on both sides of the bearing puller, and a rotating connecting shaft is installed in the movable holes; part of the axle box pull claw is accommodated in the movable holes and is rotatably connected to the rotating connecting shaft; The axle box pull claw includes a rotating connecting part, a supporting part, and a limiting part; the rotating connecting part has a rotating connecting hole that mates with the rotating connecting shaft; the supporting part is connected to the rotating connecting part and is used to connect to the axle box; the limiting part is connected to the supporting part, and the supporting part is used to abut against the bearing pull bracket to limit the rotation of the axle box pull claw relative to the bearing pull bracket; The iron molten iron wheel axle box disassembly and assembly device further includes an elastic element sleeved on the rotating connecting shaft; along the axial direction of the rotating connecting shaft, the limiting part and the elastic element are located at both ends of the supporting part, and the elastic element is used to make the limiting part have a tendency to abut against the bearing puller.

2. The iron molten iron wheel axle box disassembly and assembly device according to claim 1, characterized in that: The iron molten iron wheel axle box disassembly and assembly device further includes a bearing base and a bearing platform; the bearing base is connected to the movable flatbed car, the bearing platform is movably connected to the bearing base along the first direction, and the driving component is used to drive the bearing platform to move relative to the bearing base along the first direction.

3. The iron molten iron wheel axle box disassembly and assembly device according to claim 2, characterized in that: The supporting base is movably connected to the movable flatbed truck along the second direction.

4. The iron molten iron wheel axle box disassembly and assembly device according to claim 1, characterized in that: The iron molten iron wheel axle box disassembly and assembly device also includes a bearing positioning seat, which is connected to the lifting seat and is used to mate with the bearing.

5. The iron molten iron wheel axle box disassembly and assembly device according to claim 4, characterized in that: The bearing positioning seat is movably connected to the lifting seat along the second direction; The drive assembly further includes a fifth hydraulic cylinder in communication with the hydraulic pump, the fifth hydraulic cylinder being connected to the lifting seat, and the fifth hydraulic cylinder being used to drive the bearing positioning seat to move relative to the lifting seat in the second direction.

6. The iron molten iron wheel axle box disassembly and assembly device according to any one of claims 1-5, characterized in that: The iron molten iron wheel axle box disassembly and assembly device also includes a connecting sleeve, the axle box pull claw is connected to the connecting sleeve, and the connecting sleeve is fitted onto the bearing pull bracket.

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