Adjustable wheel set lifting appliance

Abstract

The utility model discloses an adjustable wheel set lifting appliance, which relates to the technical field of steel rail wheel set lifting in the locomotive assembly process, and comprises a cross rod and two end sleeves, the end sleeves are connected with the cross rod through threads at two ends of the cross rod, and the end sleeves can freely stretch towards two ends; the top of the end sleeve is a hemispherical end face and is in contact with a concave position of a middle wheel core on the inner side of a wheel set, so that the lifting appliance is stably clamped between the wheel sets, the end sleeve is provided with a lifting lug, an external lifting appliance is connected with a lifting lug hole to achieve lifting work of the wheel sets, and lifting work of wheel sets of various specifications and different axle distances can be achieved. The wheel set can be prevented from inclining or moving leftwards and rightwards in the hoisting process, the stability of the wheel set in the hoisting process is improved, and meanwhile the unhooking risk in the hoisting process of the wheel set is reduced; the hoisting device is simple in structure and convenient to disassemble, the operation complexity of the wheel pair in the assembling and disassembling process can be effectively reduced, the safety of manual operation is improved, and the working efficiency of the whole wheel pair hoisting operation is effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of rail wheel set lifting in a locomotive assembly process, in particular to an adjustable wheel set lifting device. Background Art

[0002] The wheelset is the part of a rolling stock that contacts the rails. It consists of two wheels securely mounted on a single axle. The wheelset's function is to ensure the rolling stock's operation and steering on the rails, bearing all static and dynamic loads from the rolling stock, transferring them to the rails, and transferring loads caused by track irregularities to the rolling stock's various components.

[0003] During locomotive assembly, wheels and axles must be hoisted after wheelset press-fitting. Currently, there are numerous locomotive wheelsets of various gauges in the workshop, many of which lack holes. This leads to poor stability and low operational safety during hoisting. Therefore, a hoisting device capable of hoisting wheelsets of various wheelbase specifications is needed to meet the wheelset hoisting requirements during locomotive assembly. Utility Model Content

[0004] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, the utility model provides an adjustable wheelset hoist for hoisting wheelsets after press-fitting is completed, so as to realize the hoisting of wheelsets of various specifications and different wheelbases.

[0005] To achieve the above-mentioned object, the present invention proposes an adjustable wheelset hanger, comprising: a crossbar and two end sleeves, one side of the crossbar is provided with a first external thread, and the other side is provided with a second external thread, the first external thread is a right-hand thread, and the second external thread is a left-hand thread, the two ends of the crossbar are respectively connected to the corresponding end sleeves through the first external thread and the second external thread, and the end sleeves are extended and retracted to press against the wheelset by rotating the crossbar;

[0006] The end sleeve is provided with a lifting lug for connecting to an external crane.

[0007] As a further solution of the present invention: the crossbar is provided with two through holes for installing external steel pipes.

[0008] As a further solution of the present invention: a hemispherical end surface is provided on the top of the end sleeve, which contacts the inner depression of the wheelset.

[0009] As a further solution of the present invention: the two end sleeves are each provided with a lifting lug, the lifting lug is provided with a lifting lug hole, and the lifting lug hole is connected to an external crane lifting device.

[0010] As a further solution of the present invention: the crossbar is provided with a plurality of sizes of different lengths.

[0011] Compared with the prior art, the beneficial effects of the present invention are:

[0012] 1. By detachably setting end sleeves at both ends of the crossbar, the end sleeves are connected to the crossbar through threads at both ends, which can realize free extension and contraction to both ends; the top of the end sleeve is a hemispherical end surface, which contacts the recessed part of the wheel core on the inner side of the wheelset, so that the hoist is stably stuck between the wheelsets, and the end sleeve is provided with a lifting lug, and the external lifting lug hole is connected to realize the wheelset lifting work. This wheelset lifting device can realize the lifting work of wheelsets with various specifications and different wheelbases. When working, the wheelset lifting device is clamped between the wheelsets, which can prevent the wheelset from tilting or moving left and right during the lifting process, greatly improving the stability of the wheelset during lifting, while reducing the risk of decoupling during the wheelset lifting process, and improving the safety of the lifting operation.

[0013] 2. After the length of the sling is adjusted, it can be placed obliquely and then straightened. It is very convenient to use and easy to disassemble. It can effectively reduce the complexity of the operation of the wheelset during the installation and disassembly process, and effectively improve the work efficiency of the entire wheelset lifting operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a structural diagram of an adjustable locomotive wheelset hanger of the utility model;

[0015] Figure 2 This is a structural diagram of an adjustable locomotive wheelset hanger crossbar of the utility model;

[0016] Figure 3 This is a schematic diagram of the working state of the present invention when wheelset lifting is performed;

[0017] Figure 4 For this utility model Figure 3 A partial enlarged view of the contact point between the mid-end sleeve and the wheelset.

[0018] In the figure: 1. Crossbar; 101. First external thread; 102. Second external thread; 103. Through hole; 2. End sleeve; 201. Lifting lug; 2011. Lifting lug hole; 202. Hemispherical end face; 3. Wheelset; 301. Inner depression of wheelset; 4. External crane wire rope shackle. DETAILED DESCRIPTION

[0019] The following will clearly and completely describe the technical solutions of the present invention in conjunction with the embodiments. Obviously, the embodiments described are only a part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0020] like Figure 1-4As shown, an adjustable wheelset spreader includes a crossbar 1 and two end sleeves 2. Each end sleeve 2 is fixed with a lifting lug 201, and the lifting lug 201 is provided with a lifting lug hole 2011. An external crane wire rope shackle 4 passes through the lifting lug hole 2011 and is connected to the wheelset spreader.

[0021] One side of the crossbar 1 is provided with a first external thread 101, and the other side is provided with a second external thread 102. The two ends of the crossbar 1 are respectively connected to the corresponding end sleeves 2 through the first external thread 101 and the second external thread 102. By rotating the crossbar 1, the end sleeves 2 are extended and pressed against the wheel; the crossbar 1 is provided with two through holes 103, which are convenient for inserting steel pipes in the left and right directions and rotating to adjust the length of the sling to the left and right.

[0022] The external threads on both sides of the crossbar 1 are in opposite directions, the first external thread 101 is a right-hand thread, and the second external thread 102 is a left-hand thread. The end sleeve 2 can be extended and retracted to both sides by rotating the crossbar 1 forward and backward, so that the end sleeve 2 can be extended and retracted to resist the wheel;

[0023] The crossbar 1 and the end sleeve 2 are detachable. By replacing the crossbar 1 with different lengths, wheelsets 3 of various specifications and wheelbases can be lifted.

[0024] like Figure 3 、 4 As shown, a hemispherical end surface 202 is provided on the top of the end sleeve 2, and the hemispherical end surface 202 contacts the inner recess 301 of the wheelset, and the wheelset lifting device is pressed between the inner walls on both sides of the wheelset, which can effectively prevent the wheel axle from moving left and right during the lifting process.

[0025] Working principle:

[0026] When in use, first adjust the length of the sling according to the width of the wheelset. After adjustment, place it between the wheelsets by tilting it, and then straighten it until the hemispherical end surface 202 on the top of the end sleeve 2 contacts the inner recess 301 of the wheelset; when further stabilization is needed, the external steel pipe can be inserted into the through hole 103, and the steel pipe can be rotated to adjust the wheelset sling to extend to both sides until the sling is clamped between the wheelsets to prevent the wheelset from tilting or moving left and right during lifting. Finally, the external crane wire rope shackle is passed through the lifting ear hole 2011 and connected to the wheelset sling to realize lifting of the wheelset. The cross bar 1 and the end sleeve 2 are detachably connected, and wheelsets 3 of different sizes can be matched by replacing cross bars 1 of different lengths.

[0027] In the description of the present invention, it should be understood that the terms "up", "down", "left", "right", etc. indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, as well as a specific direction structure and operation. Therefore, it cannot be understood as a limitation on the present invention. In addition, "first" and "second" are only for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0028] The above describes an embodiment of the present invention in detail. However, the above content is only a preferred embodiment of the present invention and should not be considered to limit the scope of implementation of the present invention. All equivalent changes and improvements made within the scope of the present invention should still fall within the scope of the patent application of the present invention.

Claims

1. An adjustable wheelset spreader, characterized in that: include: A crossbar (1) and two end sleeves (2), wherein one side of the crossbar (1) is provided with a first external thread (101), and the other side is provided with a second external thread (102), wherein the first external thread (101) is a right-handed thread, and the second external thread (102) is a left-handed thread, and the two ends of the crossbar (1) are respectively connected to the corresponding end sleeves (2) through the first external thread (101) and the second external thread (102), and the end sleeves (2) are extended and pressed against the wheelset (3) by rotating the crossbar (1); The end sleeve (2) is provided with a lifting lug (201) for connecting to an external crane.

2. The adjustable wheelset sling according to claim 1, characterized in that: The crossbar (1) is provided with two through holes (103) for installing external steel pipes.

3. The adjustable wheelset sling according to claim 1, characterized in that: The top of the end sleeve (2) is provided with a hemispherical end surface (202) which contacts the inner recess (301) of the wheelset.

4. The adjustable wheelset sling according to claim 1, characterized in that: A lifting lug (201) is fixedly provided on each of the two end sleeves (2), and the lifting lug (201) is provided with a lifting lug hole (2011), and the lifting lug hole (2011) is connected to an external crane hoist.

5. The adjustable wheelset sling according to claim 1, characterized in that: The crossbar (1) is provided with a plurality of sizes of different lengths.

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