Auxiliary disassembling and assembling tool for lower guide rod of pantograph of motor train unit

Abstract

The utility model discloses an auxiliary dismounting tool for a lower guide rod of a pantograph of a motor train unit. Comprising clamping split bodies, a center clamping hole formed in the center of the whole clamping split body assembly, a split body assembly connecting unit used for connecting the clamping split bodies into a whole, a clamping positioning unit used for enabling the clamping split bodies to be fixedly connected with a sleeve in a lower guide rod end connecting unit, and a guide rod deviation preventing assembly connected with the clamping split bodies. According to the utility model, the split assembling and connecting units are used for interconnecting a plurality of clamping split bodies, and the central clamping hole is formed in the outer wall of the sleeve and is clamped between the inner side wall of the concave frame and the side wall of the universal spherical bearing, so that the phenomenon that the shape and position of the universal spherical bearing are deviated due to push-pull force application of a bolt group in the process of disassembling the end part of the lower guide rod is prevented; and the clamping split combination body and the sleeve are connected in a fastened mode through the clamping positioning unit, so that the installation firmness of the device is guaranteed in the lower guide rod disassembling process, and sliding abrasion is restrained.

Description

Technical Field

[0001] The embodiments of this utility model belong to the field of auxiliary disassembly and assembly technology of lower guide rod, and more specifically, relate to an auxiliary disassembly and assembly tooling for the lower guide rod of a high-speed train pantograph. Background Technology

[0002] In the field of railway vehicle maintenance, the lower guide rod of the pantograph is an important component supporting the pantograph assembly. Its connecting unit mainly consists of a tie rod, ball bearings at both ends, bolt assemblies, and connecting parts, such as... Figure 13 As shown. In actual field operations, the disassembly and assembly of the pantograph's lower guide rod is a routine task. To ensure the pantograph meets normal operating requirements, a high degree of parallelism is required in the installation of the ball bearings at both ends of the lower guide rod.

[0003] In practice, due to the lack of specialized tools, workers usually use non-professional tools such as screwdrivers for disassembly and assembly. Furthermore, because the ball bearing at the end of the tie rod is connected to the tie rod body in a universal rotation, it has a high degree of freedom, which leads to poor parallelism between the ball bearing and the tie rod after installation. This results in twisting or misalignment of the lower guide rod, which greatly affects product quality and work efficiency.

[0004] Therefore, in order to achieve high-quality installation and maintenance of the lower guide rod, it is urgent to propose a device that can assist in the centering and positioning of the lower guide rod during the disassembly and assembly process. Utility Model Content

[0005] To address the aforementioned deficiencies or improvement needs of existing technologies, this utility model provides an auxiliary disassembly and assembly fixture for the lower guide rod of a high-speed train pantograph. It employs a split assembly unit to interconnect multiple clamping components, with the central clamping hole installed on the outer wall of the sleeve and clamped between the inner side wall of the concave frame and the side wall of the universal ball bearing. This not only prevents the bolt group from exerting force during the disassembly of the lower guide rod end, thus avoiding any displacement of the universal ball bearing's position, but also ensures the secure connection between the clamping assembly and the sleeve through a clamping and positioning unit. This guarantees the installation firmness of the device during the disassembly of the lower guide rod and suppresses slippage and wear.

[0006] To achieve the above objectives, a tooling for assisting in the disassembly and assembly of the lower guide rod of a high-speed train pantograph includes:

[0007] The assembly includes a snap-fit ​​component, a central snap-fit ​​hole located at the center of the snap-fit ​​component assembly, a component assembly unit for connecting the snap-fit ​​components together, a clamping and positioning unit for fastening the snap-fit ​​component to the sleeve in the lower guide rod end connection unit, and a guide rod anti-deviation component connected to the snap-fit ​​component.

[0008] The card-mounted components include a first sub-component, a main sub-component, and a second sub-component;

[0009] The first sub-unit, the main sub-unit, and the second sub-unit are interconnected by the split assembly unit, and the central locking hole is clamped to the outer periphery of the sleeve. The clamping and positioning unit positions each clamped sub-unit relative to each other, so that the entire tooling is supported between the side wall of the universal ball bearing and the inner side wall of the concave frame to prevent the universal ball bearing from deviating to the side. The guide rod anti-deviation component limits the lateral swing freedom of the lower guide rod to prevent the lower guide rod from deviating to the side.

[0010] Preferably, the split assembly unit includes:

[0011] A side hinge shaft is provided between the first sub-part, the main part, and the second sub-part; a coaxial through hole is opened between the first sub-part and the second sub-part; and a set of connecting bolts is installed in the connecting through hole to lock the relative position of the first sub-part and the second sub-part.

[0012] Preferably, the split assembly unit includes:

[0013] Vertically coaxially aligned main and secondary component interconnection holes are opened between the first secondary component and the main component, and between the main component and the second secondary component; double secondary component interconnection holes are opened between the first secondary component and the second secondary component; and a first interconnection bolt group and a second interconnection bolt group are respectively installed in the main and secondary component interconnection holes and the double secondary component interconnection holes.

[0014] Preferably, the clamping and positioning unit includes:

[0015] The push block is slidably connected in the central locking hole, the threaded rod is threadedly connected to the center of the main body, the knob is located at the outer end of the threaded rod, and the front end of the threaded rod is rotatably connected to the push block.

[0016] Preferably, the push block is made of rubber.

[0017] Preferably, the clamping and positioning unit includes:

[0018] Alignment through the pad grooves opened in the first and second sub-parts, and the pad block snapped into the pad grooves for disassembly and assembly.

[0019] Preferably, the guide rod anti-deviation assembly includes: a fan-shaped guard plate and connecting bolts for fixing the fan-shaped guard plate to the main body.

[0020] Preferably, the second sub-body has a chamfer.

[0021] In summary, compared with the prior art, the above-described technical solution conceived by this utility model can achieve the following beneficial effects:

[0022] (1) The present invention provides an auxiliary disassembly and assembly tool for the lower guide rod of the EMU pantograph. It adopts a split assembly unit to interconnect multiple clamping parts, and installs the central clamping hole on the outer wall of the sleeve and clamps it between the inner side wall of the concave frame and the side wall of the universal ball bearing. This not only prevents the bolt group from pushing and pulling force during the disassembly of the lower guide rod end, which would cause the universal ball bearing to shift in position, but also ensures the installation firmness of the device during the disassembly of the lower guide rod by clamping and positioning the clamping assembly to the sleeve. This also suppresses slippage and wear.

[0023] (2) The present invention provides an auxiliary disassembly and assembly tool for the lower guide rod of the pantograph of a high-speed train. In view of the problem of split assembly connection, it proposes two connection forms: hinged assembly and bolted assembly. The process of use only requires bolt alignment and tightening, which is convenient and quick. It can be flexibly selected according to different working conditions. The various split connection methods ensure the effectiveness of split tightening under different working conditions.

[0024] (3) The present invention provides an auxiliary disassembly and assembly tooling for the lower guide rod of the EMU pantograph. In view of the relative positioning problem between the overall clamping tooling and the connecting unit at the end of the lower guide rod, two solutions are proposed: a push-type positioning component and a pad-type positioning component. During use, by rotating the knob or installing the pad, the sleeve and the center clamping hole can be effectively positioned relative to each other, which effectively solves the technical problem of frequent shaking and wear during the installation of the lower guide rod. Attached Figure Description

[0025] Figure 1 This is a diagram illustrating the usage state of an auxiliary disassembly and assembly tool for the lower guide rod of a high-speed train pantograph, according to an embodiment of this utility model.

[0026] Figure 2 This is a schematic diagram of the first embodiment of the clamping and splitting mechanism for the auxiliary disassembly and assembly of the lower guide rod of the pantograph of a high-speed train according to the present invention;

[0027] Figure 3 This is a schematic diagram of the combined structure of the first embodiment of the clamping and splitting device for the auxiliary disassembly and assembly of the lower guide rod of the pantograph of a high-speed train according to the present utility model;

[0028] Figure 4 This is a schematic diagram of the first embodiment of the fixed-state structure of the clamping and splitting part of the auxiliary disassembly and assembly tool for the lower guide rod of the pantograph of a high-speed train according to the present utility model;

[0029] Figure 5 This is a schematic diagram of the fixed state structure of an auxiliary disassembly and assembly tooling for the lower guide rod of a high-speed train pantograph, according to a second embodiment of the present invention.

[0030] Figure 6 This is a schematic diagram of the second embodiment of the clamping and splitting mechanism for the auxiliary disassembly and assembly of the lower guide rod of the pantograph of a high-speed train according to the present invention;

[0031] Figure 7 This is a schematic diagram of the combined structure of the second embodiment of the clamping and splitting device for the auxiliary disassembly and assembly of the lower guide rod of the pantograph of a high-speed train according to the present utility model;

[0032] Figure 8 This is a schematic diagram of the fixed state structure of the second embodiment of the clamping and splitting device of the auxiliary disassembly and assembly tool for the lower guide rod of the pantograph of a high-speed train according to the present utility model;

[0033] Figure 9 This is a schematic diagram of the first embodiment of the clamping and positioning unit of the auxiliary disassembly and assembly tooling for the lower guide rod of the pantograph of a high-speed train according to the present invention;

[0034] Figure 10 This is a schematic diagram of the second embodiment of the clamping and positioning unit of the auxiliary disassembly and assembly tooling for the lower guide rod of the pantograph of a high-speed train according to the present invention;

[0035] Figure 11 This is a schematic diagram of the installation state of the guide rod anti-deviation component of an auxiliary disassembly and assembly tool for the lower guide rod of a high-speed train according to an embodiment of the present invention;

[0036] Figure 12 This is a schematic diagram of the protective plate structure of an auxiliary disassembly and assembly tool for the lower guide rod of the pantograph of a high-speed train, according to an embodiment of the present invention.

[0037] Figure 13 This is a schematic diagram of the lower guide rod end connection unit structure of an auxiliary disassembly and assembly tooling for the lower guide rod of a high-speed train according to an embodiment of the present invention;

[0038] In all the accompanying drawings, the same reference numerals denote the same technical features, specifically: 1-Integral tooling, 100-Mounted split unit, 101-First sub-splitter, 102-Main split unit, 103-Second sub-splitter, 110-Center locking hole, 120-Split unit assembly, 121-Side hinge shaft, 122-Assembled through hole, 123-Assembled bolt assembly, 124-Interconnection hole between main and sub-splitters, 125-First interconnection bolt assembly, 126-Double Sub-separation interconnection hole, 127-second interconnection bolt group, 130-clamping and positioning unit, 131-knob, 132-threaded rod, 133-push block, 134-pad groove, 135-pad block, 140-guide rod anti-deviation assembly, 141-guard plate, 142-connecting bolt, 2-lower guide rod end connection unit, 201-concave frame, 202-bolt group, 203-sleeve, 204-universal ball bearing, 205-lower guide rod. Detailed Implementation

[0039] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0040] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0041] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0042] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only for explaining the present utility model and are not intended to limit the present utility model. Furthermore, the technical features involved in the various embodiments of the present utility model described below can be combined with each other as long as they do not conflict with each other.

[0043] like Figures 1-13 As shown in this embodiment of the utility model, the auxiliary disassembly and assembly tooling for the lower guide rod of the EMU pantograph includes:

[0044] The assembly includes a snap-fit ​​component 100, a central snap-fit ​​hole 110 located at the center of the snap-fit ​​component 100 assembly, a component assembly unit 120 for connecting the snap-fit ​​components 100 together, a clamping and positioning unit 130 for fastening the snap-fit ​​component 100 to the sleeve in the lower guide rod end connection unit 2, and a guide rod anti-deviation assembly 140 connected to the snap-fit ​​component 100.

[0045] The card-mounted component 100 includes a first sub-component 101, a main component 102, and a second sub-component 103;

[0046] The first sub-sub ...

[0047] Combination Figure 1 and Figure 13 As can be seen, in this embodiment of the utility model, multiple snap-fit ​​components are interconnected by a split assembly unit, and the central snap-fit ​​hole is installed on the outer wall of the sleeve 203 and snap-fitted between the inner side wall of the concave frame 201 and the side wall of the universal ball bearing 204. This not only prevents the bolt group from pushing and pulling force during the disassembly of the lower guide rod end, causing a displacement of the universal ball bearing 204, but also securely connects the snap-fit ​​component assembly to the sleeve through the clamping and positioning unit, ensuring the installation firmness of the device during the disassembly of the lower guide rod and suppressing slippage and wear.

[0048] like Figures 1-4 As shown in this embodiment of the utility model, the split assembly unit 120 includes:

[0049] A side hinge shaft 121 is provided between the first sub-part 101, the main part 102, and the second sub-part 103; a combined through hole 122 is coaxially aligned and opened between the first sub-part 101 and the second sub-part 103; and a combined bolt group 123 is installed in the combined through hole 122 to lock the relative position of the first sub-part 101 and the second sub-part 103.

[0050] like Figures 6-8 As shown in this embodiment of the utility model, the split assembly unit 120 includes:

[0051] A main-subsidiary interconnection hole 124 is vertically coaxially aligned between the first sub-subsidiary 101 and the main subsidiary 102, and between the main subsidiary 102 and the second subsidiary 103; a double subsidiary interconnection hole 126 is formed between the first subsidiary 101 and the second subsidiary 103; and a first interconnection bolt group 125 and a second interconnection bolt group 127 are respectively installed in the main-subsidiary interconnection hole 124 and the double subsidiary interconnection hole 126.

[0052] In this embodiment of the utility model, two connection forms, hinged assembly and bolted assembly, are proposed to address the problem of split assembly connection. The process only requires bolt alignment and tightening, which is convenient and quick. It can be flexibly selected according to different working conditions. The variety of split connection methods ensures the effectiveness of split fastening under different working conditions.

[0053] like Figure 9 As shown in this embodiment of the invention, the clamping and positioning unit 130 includes:

[0054] The push block 133 is slidably connected in the central card hole 110, the threaded rod 132 is threadedly connected to the center of the main body 102, the knob 131 is provided at the outer end of the threaded rod 132, and the front end of the threaded rod 132 is rotatably connected to the push block 133.

[0055] like Figure 9 As shown in this embodiment of the utility model, the push block 133 is made of rubber.

[0056] like Figure 10 As shown in this embodiment of the invention, the clamping and positioning unit 130 includes:

[0057] Alignment through the pad groove 134 opened in the first sub-part 101 and the second sub-part 103, and the pad block 135 snapped into the pad groove 134.

[0058] In this embodiment of the utility model, two solutions are proposed for the relative positioning problem between the overall clamping fixture and the lower guide rod end connection unit 2: a push-type positioning component and a pad-type positioning component. During use, by rotating the knob or installing the pad, the sleeve and the central clamping hole can be effectively positioned relative to each other, which effectively solves the technical problem of frequent shaking and wear during the installation of the lower guide rod.

[0059] like Figures 11-12 As shown in this embodiment of the utility model, the guide rod anti-deviation assembly 140 includes: a fan-shaped guard plate 141 and a connecting bolt 142 for fixing the fan-shaped guard plate 141 to the main body 102.

[0060] like Figures 1-9 As shown in the embodiment of this utility model, the second sub-body 103 is provided with a chamfer 1030.

[0061] The above are merely preferred embodiments of this application and are not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application. The above are merely preferred embodiments of this application. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of this application, and these improvements and modifications should also be considered within the protection scope of this application.

Claims

1. A pantograph lower guide rod auxiliary dismounting tool for a motor train unit, characterized in that, The application relates to a centering and clamping device for a universal spherical bearing. The centering and clamping device comprises: a clamping part (100), a centering hole (110) arranged at the center of the clamping part (100), a part assembly connecting unit (120) for connecting the clamping parts (100) into a whole, a clamping and positioning unit (130) for connecting the clamping part (100) with a sleeve in a lower guide rod end connecting unit (2), and a guide rod deviation preventing assembly (140) connected with the clamping part (100). The clamping part (100) comprises a first sub-part (101), a main part (102) and a second sub-part (103). The first sub-part (101), the main part (102) and the second sub-part (103) are interconnected through the part assembly connecting unit (120), the centering hole (110) is clamped to the periphery of the sleeve (203), the clamping parts (100) are relatively positioned through the clamping and positioning unit (130), the whole tooling (1) is supported between the side wall of the universal spherical bearing (204) and the inner side wall of the concave frame (201), and the universal spherical bearing (204) is prevented from deviating; the lateral swinging freedom of the lower guide rod (205) is limited through the guide rod deviation preventing assembly (140), and the lower guide rod (205) is prevented from deviating.

2. The auxiliary dismounting tool for the pantograph lower guide rod of a motor train unit according to claim 1, characterized in that, The part assembly connecting unit (120) comprises: a side hinge shaft (121) arranged between the first sub-part (101), the main part (102) and the second sub-part (103), a combined hole (122) coaxially and oppositely arranged through the first sub-part (101) and the second sub-part (103), and a combined bolt set (123) installed in the combined hole (122) and used for locking the relative positions of the first sub-part (101) and the second sub-part (103). The part assembly connecting unit (120) comprises: a main sub-part interconnection hole (124) coaxially and vertically arranged between the first sub-part (101) and the main part (102) and between the main part (102) and the second sub-part (103), a double sub-part interconnection hole (126) arranged between the first sub-part (101) and the second sub-part (103), and a first interconnection bolt set (125) and a second interconnection bolt set (127) respectively installed in the main sub-part interconnection hole (124) and the double sub-part interconnection hole (126).

3. The auxiliary dismounting tool for the pantograph lower guide rod of a motor train unit according to claim 1, characterized in that, The clamping and positioning unit (130) comprises: a pushing block (133) slidably connected in the centering hole (110), a threaded rod (132) threadedly connected at the center of the main part (102), a knob (131) arranged at the outer end of the threaded rod (132), and the threaded rod (132) rotationally connected with the pushing block (133) at the front end. The pushing block (133) is made of rubber.

4. The auxiliary dismounting tool for the pantograph lower guide rod of a motor train unit according to claim 1, characterized in that, The clamping and positioning unit (130) comprises: a gasket sliding groove (134) oppositely and throughly arranged in the first sub-part (101) and the second sub-part (103), and a gasket block (135) detachably clamped in the gasket sliding groove (134). ​ 5. The auxiliary dismounting tool for the pantograph lower guide rod of a motor train unit according to claim 4, characterized in that, ​ 6. The auxiliary dismounting tool for the pantograph lower guide rod of a motor train unit according to claim 1, characterized in that, ​ ​ 7. The auxiliary dismounting tool for the pantograph lower guide rod of a motor train unit according to claim 1, characterized in that, The guide rod anti-deviation assembly (140) comprises a fan-shaped protective plate (141) and a connecting bolt (142) for fixing the fan-shaped protective plate (141) to the main part (102).

8. The auxiliary dismounting tool for the pantograph lower guide rod of a motor train unit according to any one of claims 1 to 7, characterized in that, The second sub-part (103) is provided with a chamfer (1030).

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