Locomotive hoist system and method with protective features

Abstract

The application provides a locomotive hoisting system and method with a protection function, wherein the locomotive hoisting system with the protection function comprises a locomotive, a jacking machine and a crane, further comprises a plurality of locomotive support seat groups, a plurality of hoisting protection block groups and a plurality of annular soft belts, and a locomotive hoisting method with the protection function is disclosed and applied to the locomotive hoisting system with the protection function. The application does not affect the hoisting of the locomotive, has a simple structure, has a lower requirement on the strength of the locomotive, is more beneficial to the weight reduction of the locomotive, does not affect the integrity of the appearance of the locomotive and reduces the manufacturing difficulty of the locomotive.

Description

Technical Field

[0001] The present invention relates to the technical field of locomotive lifting, and in particular to a locomotive lifting system and method with a protective function. Background Art

[0002] During the assembly and maintenance process of the locomotive, it is necessary to use a car-lifting machine to lift the locomotive and a crane to lift the locomotive. Accordingly, a special support seat (i.e., car-lifting point) and lifting seat (i.e., lifting point) need to be set on the car body frame to meet the lifting operation of the locomotive during transportation.

[0003] In the existing technology, the support seat is mostly set at the load-bearing beam position below the side wall of the locomotive. During the assembly and maintenance process, a car crane is used to support the support seat and lift the locomotive; the lifting seat is mostly a lifting hole opened at the load-bearing beam position below the side wall of the locomotive. First, a lifting pin barrel is inserted into the lifting hole, and then a circular steel wire rope is used to wrap around the lifting pin, and finally the crane is controlled to lift the locomotive.

[0004] In the prior art, there are the following problems:

[0005] 1. The support seat and hoisting seat need to be designed at different positions of the locomotive, which results in a complex structure;

[0006] 2. Setting support seats and lifting seats on the locomotive requires a high strength of the locomotive. Opening lifting holes at the load-bearing position is not conducive to locomotive weight reduction.

[0007] 3. The support base is close to the bottom surface of the vehicle frame and overlaps with the pipelines and lines under the vehicle, which makes the design more difficult and affects the erection of the locomotive;

[0008] 4. Opening a lifting hole on the side wall of the locomotive affects the integrity of the locomotive's appearance and is more difficult to manufacture;

[0009] 5. The lifting straps used for lifting (i.e., circular steel wire ropes and circular soft belts) will be tightened on the locomotive's support brackets, pipe rows, handrails and cable ducts, affecting the lifting of the locomotive. Summary of the Invention

[0010] In response to the above-mentioned technical problems, a locomotive lifting system and method with protective functions are provided.

[0011] The technical means adopted in the present invention are as follows:

[0012] In the first aspect, a locomotive lifting system with a protective function comprises: a locomotive; support brackets are installed on both sides of the width direction of the car body underframe of the locomotive, and pipe rows, handrails and wire troughs are installed on the support brackets, and the support brackets, pipe rows, handrails and wire troughs all protrude from the car body underframe along the width direction of the car body underframe; a car lifting machine; the car lifting machine can lift the locomotive; a crane; the crane can lift the locomotive; and further comprises: a plurality of locomotive support seat groups; the plurality of locomotive support seat groups are distributed on the bottom surface of the car body underframe along the length direction of the car body underframe, and the locomotive support seat group includes a pair of locomotive support seats that are symmetrical about the axis of the length direction of the car body underframe and installed on the bottom surface of the car body underframe; a plurality of lifting protective devices. Block group; the several lifting protection block groups are distributed on the side of the car body underframe along the length direction of the car body underframe, the lifting protection block group includes a pair of lifting protection blocks that are symmetrical about the axis of the length direction of the car body underframe and are respectively installed on the two side faces in the width direction of the car body underframe, and the lifting protection blocks are consistent in number with the locomotive support seats and correspond one to one; several annular soft belts; the annular soft belts are consistent in number with the locomotive support seats and correspond one to one, one end of the annular soft belt is detachably installed on the locomotive support seat, and the other end of the annular soft belt is detachably installed on the hook of the crane, and the annular soft belt contacts the side of the lifting protection block away from the car body underframe and does not contact the support bracket, pipe row, handrail and wire trough.

[0013] Furthermore, the locomotive support seat includes a support column and a bottom pad; the support column is a semi-cylindrical structure with an axis perpendicular to the horizontal plane, the bottom pad is horizontally arranged, the top surface of the bottom pad is installed on the bottom surface of the support column, and the area of ​​the bottom surface of the bottom pad is larger than the area of ​​the bottom surface of the support column; the top surface of the support column is installed on the bottom surface of the vehicle body frame, and the bottom surface of the bottom pad can be fitted with the top surface of the moving end of the vehicle lifting machine, and the arc surfaces of the support columns of a pair of locomotive support seats in the locomotive support seat group are arranged relative to each other.

[0014] Furthermore, it also includes a support seat cover, and one end of the annular soft belt installed on the locomotive support seat is installed on the support column through the support seat cover; the support seat cover includes a semicircular cover and a fixed cover, and the two ends of the semicircular cover are detachably installed on the fixed cover; the inner side surface of the semicircular cover can be fitted with the arc surface of the support column, and one end face of the fixed cover can be fitted with the side plane of the support column. When the two ends of the semicircular cover are installed on the fixed cover, the semicircular cover and the fixed cover can be fitted with the arc surface and the side plane of the support column respectively at the same time.

[0015] Furthermore, it also includes a screw rod, a cover plate is installed on the fixing sleeve, a screw hole is opened on the cover plate, and an oblong hole is opened on the lifting protection block; the screw rod is installed in the screw hole and the oblong hole at the same time, and the lifting protection block can move relative to the screw rod along the length direction of the oblong hole; the length direction of the oblong hole is consistent with the width direction of the vehicle body frame.

[0016] Furthermore, it includes several hangers; a hook mounting portion is installed at the middle position of the hanger in the longitudinal direction, and hooks are installed at both ends of the hanger in the longitudinal direction; the hooks are consistent in number and correspond one to one with the fixing sleeves, one end of the annular soft belt is detachably mounted on the hook, and the other end of the annular soft belt is detachably mounted on the end surface of the fixing sleeve away from the side plane of the support column, and the hook mounting portion is detachably mounted on the hook of the crane.

[0017] Furthermore, a plane that fits the side of the vehicle body underframe is provided on the side of the lifting protection block close to the vehicle body underframe, and an arc surface that contacts the annular soft belt is provided on the side of the lifting protection block away from the vehicle body underframe.

[0018] In a second aspect, a locomotive lifting method with a protective function is applied to the locomotive lifting system with a protective function described in any one of the first aspects, comprising the following steps:

[0019] S1: Move the locomotive's underframe onto the lift. At this point, the bottom surface of the bottom pad is in contact with the top surface of the moving end of the lift, and the lift is controlled to lift the locomotive.

[0020] S2: Install the support seat cover on the support column of the locomotive support seat, at this time the semicircular cover and the fixed cover are respectively fitted with the arc surface and the side plane of the support column;

[0021] S3: Install one end of the annular soft belt on the end surface of the fixing sleeve away from the side plane of the support column, and install the other end of the annular soft belt on the hook of the hanger. At this time, the annular soft belt contacts the side of the lifting protection block away from the vehicle body frame and does not contact the support bracket, pipe row, handrail and cable duct;

[0022] S4: Install the hook mounting portion of the hanger on the hook of the crane, and control the crane to lift the locomotive.

[0023] Compared with the prior art, the present invention has the following advantages:

[0024] 1. In the present invention, when one end of the annular soft belt is mounted on the end surface of the fixing sleeve away from the side plane of the support column and the other end of the annular soft belt is mounted on the hook of the hanger, the annular soft belt contacts the side of the lifting protection block away from the vehicle body frame and does not contact the support bracket, pipe row, handrail and wire duct, thereby preventing the annular soft belt from being tightened on the support bracket, pipe row, handrail and wire duct of the locomotive, affecting the lifting of the locomotive; at the same time, the locomotive support seat in the present invention can be supported by the locomotive and lifted by the crane. Compared with the prior art in which a support seat and a lifting seat are respectively arranged at different positions of the locomotive, the structure of the locomotive support seat in the present invention is simpler; in addition, since there is no need to open a lifting hole on the locomotive, the strength requirement of the locomotive is reduced, which is more conducive to reducing the weight of the locomotive, does not affect the integrity of the locomotive appearance and reduces the manufacturing difficulty of the locomotive.

[0025] 2. In the present invention, the bottom pad is installed on the bottom surface of the vehicle body chassis through the support column, which increases the distance between the bottom pad and the bottom surface of the vehicle body chassis, so that the bottom pad does not overlap with the pipelines and lines under the vehicle, reduces the design difficulty and does not affect the erection of the locomotive.

[0026] 3. In the present invention, when the support seat cover is installed on the support column of the locomotive support seat, the semicircular cover and the fixed cover are respectively fitted with the arc surface and the side plane of the support column at the same time, so that the support seat cover will not be displaced relative to the support column, thereby improving the stability of the locomotive lifting; at the same time, the arc surface of the support column can reduce its wear on the support seat cover, thereby increasing the service life of the support seat cover.

[0027] 4. In the present invention, the lifting protection block can be moved relative to the vehicle body frame along the width direction of the vehicle body frame, so that the side of the lifting protection block close to the vehicle body frame can be in contact with the vehicle body frame, thereby preventing the lifting protection block from shaking relative to the vehicle body frame and affecting the stability of the locomotive lifting.

[0028] 5. In the present invention, the annular soft belt is installed on the hook of the crane through a hanger, which improves the stability of the installation of the annular soft belt.

[0029] 6. In the present invention, the annular soft belt contacts the arc surface on the lifting protection block, and the arc surface on the lifting protection block causes less wear on the annular soft belt, thereby increasing the service life of the annular soft belt. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0031] Figure 1 This is an overall structural diagram of a locomotive lifting system with a protective function in Example 1 of the present invention;

[0032] Figure 2 This is an overall structural diagram of the locomotive support seat in Example 1 of the present invention;

[0033] Figure 3 This is an overall structural diagram of the support seat cover and the lifting protection block in Example 1 of the present invention;

[0034] Figure 4 This is an overall structural diagram of the semicircular sleeve in Example 1 of the present invention;

[0035] Figure 5 This is a front side view of the fixing sleeve in Example 1 of the present invention;

[0036] Figure 6 This is a rear side view of the fixing sleeve in Example 1 of the present invention;

[0037] Figure 7 This is an overall flow chart of a locomotive lifting method with a protective function in Example 2 of the present invention;

[0038] In the figure: 1-hanging bracket; 2-annular soft belt; 3-handrail; 4-support bracket; 5-car body underframe; 6-support seat cover; 7-locomotive support seat; 8-lifting protection block; 9-oblong hole; 10-screw; 101-hook; 102-hook mounting part; 601-semicircular sleeve; 602-fixing sleeve; 603-baffle; 604-cover plate; 605-screw hole; 701-support column; 702-bottom pad. DETAILED DESCRIPTION

[0039] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments of the present invention can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0040] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is in no way intended to limit the present invention and its application or use. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0041] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present invention. As used herein, unless the context clearly indicates otherwise, the singular form is intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, they indicate the presence of features, steps, operations, devices, components and / or combinations thereof.

[0042] Unless otherwise specifically stated, the relative arrangement of the parts and steps, numerical expressions and numerical values ​​described in these embodiments do not limit the scope of the present invention. At the same time, it should be clear that, for ease of description, the sizes of the various parts shown in the drawings are not drawn according to the actual proportional relationship. The techniques, methods and equipment known to ordinary technicians in the relevant fields may not be discussed in detail, but where appropriate, the techniques, methods and equipment should be considered as part of the authorization specification. In all examples shown and discussed here, any specific value should be interpreted as merely exemplary and not as a limitation. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that similar numbers and letters represent similar items in the following figures, so once an item is defined in one figure, it does not need to be further discussed in subsequent figures.

[0043] In the description of the present invention, it should be understood that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "horizontal, vertical, vertical, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the scope of protection of the present invention: the directional words "inside and outside" refer to the inside and outside relative to the outline of each component itself.

[0044] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used herein to describe the spatial positional relationship of a device or feature to other devices or features as shown in the figures. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figures. For example, if the device in the drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below their position devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0045] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of the present invention.

[0046] Example 1:

[0047] like Figures 1 to 3As shown, a locomotive lifting system with a protective function comprises: a locomotive; support brackets 4 are installed on both sides of the width direction of the car body underframe 5 of the locomotive, and pipe rows, handrails 3 and wire troughs are installed on the support brackets 4, and the support brackets 4, pipe rows, handrails 3 and wire troughs all protrude from the car body underframe 5 along the width direction of the car body underframe 5; a car lifting machine; the car lifting machine can lift the locomotive; a crane; the crane can lift the locomotive; further comprising: a plurality of locomotive support seat groups; the plurality of locomotive support seat groups are evenly distributed on the bottom surface of the car body underframe 5 along the length direction of the car body underframe 5, and the locomotive support seat group includes a pair of locomotive support seats 7 that are symmetrical about the axis of the length direction of the car body underframe 5 and installed on the bottom surface of the car body underframe 5; a plurality of lifting protection block groups; The several lifting protection block groups are evenly distributed on the side of the car body underframe 5 along the length direction of the car body underframe 5, and the lifting protection block group includes a pair of lifting protection blocks 8 that are symmetrical about the axis of the length direction of the car body underframe 5 and are respectively installed on the two side surfaces in the width direction of the car body underframe 5, and the lifting protection blocks 8 are consistent in number with the locomotive support seat 7 and correspond one to one; several annular soft belts 2; the annular soft belts 2 are consistent in number with the locomotive support seat 7 and correspond one to one, one end of the annular soft belt 2 is detachably installed on the locomotive support seat 7, and the other end of the annular soft belt 2 is detachably installed on the hook of the crane, and the annular soft belt 2 is in contact with the side of the lifting protection block 8 away from the car body underframe 5 and does not contact the support bracket 4, pipe row, handrail 3 and wire trough.

[0048] Specifically, the annular soft belt 2 is elastic and can buffer the shaking of the locomotive.

[0049] In this embodiment, the locomotive support seat 7 includes a support column 701 and a bottom pad 702; the support column 701 is a semi-cylindrical structure with an axis perpendicular to the horizontal plane, and the bottom pad 702 is horizontally arranged, and the top surface of the bottom pad 702 is installed on the bottom surface of the support column 701, and the area of ​​the bottom surface of the bottom pad 702 is larger than the area of ​​the bottom surface of the support column 701; the top surface of the support column 701 is installed on the bottom surface of the vehicle body frame 5, and the bottom surface of the bottom pad 702 can be fitted with the top surface of the moving end of the vehicle lifting machine. The arc surfaces of the support columns 701 of a pair of locomotive support seats 7 in the locomotive support seat group are arranged relative to each other.

[0050] Specifically, the bottom surface area of ​​the bottom pad 702 is larger than the bottom surface area of ​​the support column 701, which can reduce the pressure on the top surface of the mobile end of the vehicle lifting machine.

[0051] In this embodiment, Figures 4 to 6, also includes a support seat cover 6, one end of the annular soft belt 2 installed on the locomotive support seat 7 is installed on the support column 701 through the support seat cover 6; the support seat cover 6 includes a semicircular sleeve 601 and a fixed sleeve 602, and the two ends of the semicircular sleeve 601 are detachably mounted on the fixed sleeve 602; the inner side surface of the semicircular sleeve 601 can be fitted with the arc surface of the support column 701, and one end surface of the fixed sleeve 602 can be fitted with the side plane of the support column 701. When the two ends of the semicircular sleeve 601 are installed on the fixed sleeve 602, the semicircular sleeve 601 and the fixed sleeve 602 can be fitted with the arc surface and the side plane of the support column 701 at the same time.

[0052] Specifically, a semicircular baffle 603 is installed on the bottom surface of the semicircular sleeve 601, and the bottom surface of the baffle 603 can be fitted with the top surface of the bottom pad 702. The two ends of the semicircular sleeve 601 are detachably mounted on the fixing sleeve 602 through fixing screws and fixing screw holes.

[0053] In this embodiment, Figure 3 As shown, it also includes a screw 10, a cover plate 604 is installed on the fixing sleeve 602, a screw hole 605 is opened on the cover plate 604, and an oblong hole 9 is opened on the lifting protection block 8; the screw 10 is installed in the screw hole 605 and the oblong hole 9 at the same time, and the lifting protection block 8 can move relative to the screw 10 along the length direction of the oblong hole 9; the length direction of the oblong hole 9 is consistent with the width direction of the vehicle body chassis 5.

[0054] Specifically, there are four screw rods 10, four screw holes 605 are provided on the cover plate 604, a groove is provided on the top surface of the lifting protection block 8, and two oblong holes 9 are provided on the bottom surface of the groove. One oblong hole 9 corresponds to the two screw holes 605 and two screw rods 10 are installed inside it, so that the lifting protection block 8 will not be displaced perpendicular to the width direction of the vehicle body frame 5.

[0055] In this embodiment, several hangers 1 are also included; a hook mounting portion 102 is installed at the middle position of the hanger 1 in the longitudinal direction, and hooks 101 are installed at both ends of the hanger 1 in the longitudinal direction; the hooks 101 are consistent in number and correspond one to one with the fixing sleeves 602, one end of the annular soft belt 2 is detachably mounted on the hook 101, and the other end of the annular soft belt 2 is detachably mounted on the end surface of the fixing sleeve 602 away from the side plane of the support column 701, and the hook mounting portion 102 is detachably mounted on the hook of the crane.

[0056] Specifically, the annular soft belt 2 is detachably mounted on the end surface of the fixing sleeve 602 away from the side plane of the support column 701 through a fixing screw and a fixing screw hole.

[0057] In this embodiment, a flat surface that fits the side of the vehicle body frame 5 is provided on the side of the lifting protection block 8 close to the vehicle body frame 5, and an arc surface that contacts the annular soft belt 2 is provided on the side of the lifting protection block 8 away from the vehicle body frame 5.

[0058] Example 2:

[0059] like Figure 7 As shown, a locomotive lifting method with a protective function is applied to the locomotive lifting system with a protective function described in any one of the embodiments 1, comprising the following steps:

[0060] S1: Move the vehicle underframe 5 onto the vehicle lifting machine. At this time, the bottom surface of the bottom pad 702 is in contact with the top surface of the moving end of the vehicle lifting machine, and the vehicle lifting machine is controlled to lift the vehicle.

[0061] S2: Install the support seat cover 6 on the support column 701 of the locomotive support seat 7. At this time, the semicircular cover 601 and the fixed cover 602 are respectively fitted with the arc surface and the side plane of the support column 701;

[0062] S3: Install one end of the annular soft belt 2 on the end surface of the fixing sleeve 602 away from the side plane of the support column 701, and install the other end of the annular soft belt 2 on the hook 101 of the hanger 1. At this time, the annular soft belt 2 is in contact with the side of the lifting protection block 8 away from the vehicle body underframe 5 and does not contact the support bracket 4, the pipe row, the handrail 3 and the cable duct;

[0063] S4: Install the hook mounting portion 102 of the hanger 1 on the hook of the crane, and control the crane to lift the locomotive.

[0064] In addition, when the support bracket 4, pipe row, handrail 3 and wire trough are not installed on the locomotive, there is no situation where the annular soft belt 2 is tightened on the support bracket 4, pipe row, handrail 3 and wire trough, so there is no need to install a lifting protection block group on the side of the car body frame 5.

[0065] Finally, 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 above embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the above embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A locomotive lifting system with a protective function, comprising: Locomotive; support brackets (4) are installed on both sides of the width direction of the vehicle body underframe (5) of the locomotive, and pipe rows, handrails (3) and wire troughs are installed on the support brackets (4); the support brackets (4), pipe rows, handrails (3) and wire troughs all protrude from the vehicle body underframe (5) along the width direction of the vehicle body underframe (5); A vehicle-lifting machine; the vehicle-lifting machine can lift the locomotive; Crane; the crane can lift the locomotive; It is characterized by further comprising: A plurality of locomotive support seat groups; the plurality of locomotive support seat groups are distributed on the bottom surface of the vehicle body chassis (5) along the length direction of the vehicle body chassis (5); the locomotive support seat group comprises a pair of locomotive support seats (7) symmetrical about the axis of the length direction of the vehicle body chassis (5) and mounted on the bottom surface of the vehicle body chassis (5); the locomotive support seat (7) comprises a support column (701) and a bottom pad (702); the support column (701) is a semi-cylindrical structure with an axis perpendicular to a horizontal plane, and the bottom pad (702) is arranged horizontally, the top surface of the bottom pad (702) is mounted on the bottom surface of the support column (701), and the area of ​​the bottom surface of the bottom pad (702) is larger than the area of ​​the bottom surface of the support column (701); the top surface of the support column (701) is mounted on the bottom surface of the vehicle body underframe (5), and the bottom surface of the bottom pad (702) can be fitted with the top surface of the moving end of the vehicle lifting machine, and the arc surfaces of the support columns (701) of a pair of locomotive support seats (7) in the locomotive support seat group are arranged relative to each other; A plurality of lifting protection block groups; the plurality of lifting protection block groups are distributed on the side surfaces of the vehicle body underframe (5) along the length direction of the vehicle body underframe (5), the lifting protection block groups include a pair of lifting protection blocks (8) symmetrical about the axis of the length direction of the vehicle body underframe (5) and respectively mounted on two side surfaces in the width direction of the vehicle body underframe (5), the number of the lifting protection blocks (8) is the same as that of the locomotive support seats (7) and they correspond one to one; A plurality of annular soft belts (2); the annular soft belts (2) are the same in number and correspond one to one with the locomotive support seat (7); one end of the annular soft belt (2) is detachably mounted on the locomotive support seat (7); the other end of the annular soft belt (2) is detachably mounted on the hook of the crane; the annular soft belt (2) contacts the side of the lifting protection block (8) away from the vehicle body chassis (5) and does not contact the support bracket (4), the pipe row, the handrail (3) and the wire trough; It also includes a support seat cover (6), and one end of the annular soft belt (2) mounted on the locomotive support seat (7) is mounted on the support column (701) through the support seat cover (6); The support seat sleeve (6) comprises a semicircular sleeve (601) and a fixed sleeve (602), and both ends of the semicircular sleeve (601) are detachably mounted on the fixed sleeve (602); The inner side surface of the semicircular sleeve (601) can fit with the arc surface of the support column (701), and one end surface of the fixed sleeve (602) can fit with the side plane of the support column (701). When both ends of the semicircular sleeve (601) are mounted on the fixed sleeve (602), the semicircular sleeve (601) and the fixed sleeve (602) can fit with the arc surface and the side plane of the support column (701) respectively at the same time. It also includes a screw (10), a cover plate (604) is installed on the fixing sleeve (602), a screw hole (605) is opened on the cover plate (604), and an oblong hole (9) is opened on the lifting protection block (8); The screw rod (10) is installed in the screw hole (605) and the oblong hole (9) at the same time, and the lifting protection block (8) can move relative to the screw rod (10) along the length direction of the oblong hole (9); The length direction of the oblong hole (9) is consistent with the width direction of the vehicle body chassis (5).

2. A locomotive lifting system with protective function according to claim 1, characterized in that: Also includes a plurality of hangers (1); A hook mounting portion (102) is installed at a middle position in the length direction of the hanger (1), and hooks (101) are installed at both ends in the length direction of the hanger (1); The hooks (101) and the fixing sleeves (602) are identical in number and correspond one to one. One end of the annular soft belt (2) is detachably mounted on the hook (101). The other end of the annular soft belt (2) is detachably mounted on the end surface of the fixing sleeve (602) away from the side plane of the support column (701). The hook mounting portion (102) is detachably mounted on the hook of the crane.

3. The locomotive lifting system with protective function according to claim 1, characterized in that: A plane that fits the side of the vehicle body underframe (5) is provided on the side of the lifting protection block (8) close to the vehicle body underframe (5), and an arc surface that contacts the annular soft belt (2) is provided on the side of the lifting protection block (8) away from the vehicle body underframe (5).

4. A locomotive lifting method with a protective function, applied to the locomotive lifting system with a protective function according to any one of claims 1 to 3, characterized in that: The following steps are involved: S1: The vehicle body underframe (5) of the locomotive is moved onto the vehicle-lifting machine, at which point the bottom surface of the bottom pad (702) is in contact with the top surface of the moving end of the vehicle-lifting machine, and the vehicle-lifting machine is controlled to lift the locomotive; S2: Installing the support seat cover (6) on the support column (701) of the locomotive support seat (7), at this time, the semicircular cover (601) and the fixed cover (602) are respectively fitted with the arc surface and the side plane of the support column (701); S3: Install one end of the annular soft belt (2) on the end surface of the fixing sleeve (602) away from the side plane of the support column (701), and install the other end of the annular soft belt (2) on the hook (101) of the hanger (1), at this time, the annular soft belt (2) is in contact with the side of the lifting protection block (8) away from the vehicle body chassis (5) and is not in contact with the support bracket (4), the pipe row, the handrail (3) and the wire trough; S4: Install the hook mounting portion (102) of the hanger (1) on the hook of the crane, and control the crane to lift the locomotive.

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