Dismounting device for main shaft group of switch machine

Abstract

The utility model discloses a dismounting device for a main shaft group of a switch machine. The dismounting device comprises a screw rod part and a fixed part, the screw rod part comprises a screw rod and a screw rod nut; the screw rod comprises a screw rod column body; the right end part of the screw rod column body is connected with the left end of the screw rod head part; a screw rod tail end driving part is arranged at the left end part of the screw rod column body; the lead screw nut comprises an outer hexagonal part and an annular protruding part and is provided with a first internal thread through hole. The first external thread of the screw rod column body is connected with the first internal thread through hole; the fixed part comprises a connecting plate; the connecting plate is provided with an open through groove; the lead screw penetrates through the open through groove; the right upper end of the connecting plate is connected with the supporting plate; the right lower end of the connecting plate is connected with the collet; front and rear ends of the top of the support plate are connected with hooks; the hook is used for being hung on an external electric switch machine; and the bottom support is used for jacking an external electric switch machine. The tool can be used for conveniently and reliably disassembling the main shaft group of the switch machine, so that parts are prevented from being damaged, the disassembling quality is ensured, and the service life of the switch machine is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of railway turnout conversion equipment, in particular to a disassembly device for a switch machine main shaft group. Background Art

[0002] A switch machine is an important signal infrastructure equipment used to reliably convert the switch position, change the direction of switch opening, lock the switch point rail, and reflect the switch position. It can well ensure driving safety, improve transportation efficiency, and improve the labor intensity of drivers.

[0003] Tianjin Railway Signal Co., Ltd. produces a variety of ZD6 series electric switch machines, which are widely used in railway stations. With the increase in railway transportation volume, the frequency of electric switch operations is increasing. To better ensure the long-term and stable operation of the ZD6 series electric switch machines, it is necessary to regularly dismantle and repair them off-track, or to replace some of their components, such as the main shaft assembly, on the railway line.

[0004] See also Figure 8 As shown, the main shaft assembly of the electric switch machine 12 includes a main shaft 9, a main shaft sleeve 9002 fixed to the main shaft 9, and a needle roller bearing 9003. The electric switch machine 12 (e.g., a ZD6-D DC electric switch machine) has an open-top lower housing 10. A circular main shaft docking aperture 1201 is defined on a side panel of the lower housing 10. The main shaft docking aperture 1201 is positioned directly opposite the main shaft 9 within the electric switch machine 12, exposing the main shaft 9. The main shaft 9 has an internally threaded hole 9001 on one end facing the main shaft docking aperture 1201.

[0005] It should be noted that the main shaft sleeve and needle roller bearing are fixedly installed on the main shaft 9, wherein the main shaft sleeve 9002 arranged on the outer side of the main shaft 9 is an interference fit with the main shaft docking hole 1201, and the needle roller bearing 9003 arranged on the outer side of the main shaft 9 is an interference fit with the bearing mounting hole 1001 set on the bottom shell 10. The main shaft 9 is connected to the bottom shell 10 of the electric switch machine 12 through the main shaft sleeve 9002 and the needle roller bearing 9003, and the main shaft 9 is connected to the reducer box in the electric switch machine 12 through the starting plate, wherein the main shaft 9 and the starting plate are a clearance fit. During the operation of the electric switch machine 12, the reducer drives the main shaft 9 to rotate through the starting plate.

[0006] At present, the existing disassembly method of the switch machine main shaft group is unreasonable in design, and the switch machine main shaft group cannot be disassembled conveniently and reliably, which easily damages the parts (i.e. the main shaft group), thereby leaving safety hazards to the operation of the electric switch machine and affecting the service life of the electric switch machine.

[0007] Therefore, there is an urgent need to develop a technology that can solve the above technical problems. Utility Model Content

[0008] The purpose of the utility model is to provide a disassembly device for a switch machine main shaft assembly in view of the technical defects in the prior art.

[0009] To this end, the utility model provides a disassembly device for a switch machine main shaft assembly, which includes: a screw rod part and a fixing part;

[0010] The screw part includes a screw and a screw nut;

[0011] The screw rod comprises a screw rod body, a screw rod head, a screw rod tail end driving part and a transition rod;

[0012] The right end of the laterally distributed screw rod column is connected to the left end of the transition rod;

[0013] The right end of the transition rod is connected to the left end of the screw rod head;

[0014] The left end of the screw rod column is provided with a screw rod tail end driving part;

[0015] The screw nut comprises an outer hexagonal portion and an annular raised portion;

[0016] The right side of the outer hexagonal portion is fixedly connected to the left side of the annular raised portion;

[0017] A first internal threaded through hole is transversely provided on the outer hexagonal portion and the annular raised portion;

[0018] The screw rod cylinder on the screw rod has a first external thread, which is threadedly connected to the first internal thread through hole on the screw rod nut;

[0019] The fixed part includes: a connecting plate, a supporting plate, a hook and a bottom bracket;

[0020] A long open slot is provided at the middle of the vertically distributed connecting plate;

[0021] An open through slot for passing the screw rod transversely;

[0022] The upper right end of the connecting plate is fixedly connected to the supporting plate;

[0023] The lower right end of the connecting plate is fixedly connected to the bottom bracket;

[0024] The front and rear ends of the top of the support plate are connected to a hook;

[0025] A hook for hanging on an external electric switch machine;

[0026] The right side of the base is used to tighten the external electric switch.

[0027] It can be seen from the technical solution provided by the above utility model that, compared with the prior art, the utility model provides a disassembly device for the main shaft group of the switch machine, which has a scientific structural design and can conveniently and reliably disassemble the main shaft group of the switch machine, avoid damage to parts (i.e., the main shaft group), and can ensure the disassembly quality of the main shaft group of the switch machine, thereby ensuring the safe operation of the electric switch machine and extending the service life of the electric switch machine, which has great practical significance.

[0028] By applying the utility model, the main shaft group of the electric switch machine that is being repaired on or off the railway line can be disassembled conveniently and reliably, thereby ensuring the disassembly quality and eliminating the safety hazards caused by poor disassembly.

[0029] After testing, the utility model can be applied to the disassembly of various different models of switch machine main shaft groups involved in the ZD6 series electric switch machine produced by Tianjin Railway Signal Co., Ltd. The utility model connects the screw part with the thread of the main shaft group, hangs the fixed part on the bottom shell of the ZD6 electric switch machine, and adjusts the stroke of the screw nut. The main shaft group of the ZD6 series electric switch machine can be disassembled from the bottom shell, thereby avoiding damage to related parts and improving the disassembly quality of the ZD6 electric switch machine. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 This is a schematic diagram of the three-dimensional structure of a disassembly device for a switch machine main shaft assembly provided by the utility model;

[0031] Figure 2 This is a schematic diagram of the three-dimensional structure of the screw rod in the disassembly device of the switch machine main shaft assembly provided by the utility model;

[0032] Figure 3 This is a schematic diagram of the three-dimensional structure of the screw nut in the disassembly device of the switch machine main shaft assembly provided by the utility model;

[0033] Figure 4 A schematic diagram of the three-dimensional structure of a connecting plate in a disassembly device for a switch machine main shaft assembly provided by the present invention;

[0034] Figure 5 This is a schematic diagram of the three-dimensional structure of the support plate in the disassembly device of the switch machine main shaft group provided by the utility model;

[0035] Figure 6 This is a schematic diagram of the three-dimensional structure of a hook in a disassembly device for a switch machine main shaft assembly provided by the utility model;

[0036] Figure 7 This is a schematic diagram of the three-dimensional structure of the bottom support in the disassembly device of the switch machine main shaft group provided by the utility model;

[0037] Figure 8 This is a schematic diagram of the working state of a disassembly device for a switch machine main shaft assembly provided by the utility model, when performing a main shaft assembly disassembly operation on an existing model (ZD6-D) of a ZD6 series electric switch machine;

[0038] In the figure: 1-screw, 2-screw nut, 3-connecting plate, 4-support plate, 5-hook;

[0039] 6- bottom bracket, 7- first bolt, 8- second bolt, 9- main shaft, 10- lower housing;

[0040] 11-Third bolt. DETAILED DESCRIPTION

[0041] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. 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.

[0042] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0043] In the description of this patent, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "connected," "connected," and "set" should be understood in a broad sense. For example, they can refer to fixed connection or set, detachable connection or set, or integral connection or set. Those skilled in the art will understand the specific meanings of the above terms in this patent based on the specific circumstances.

[0044] 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 the technical features being referred to. Thus, a feature specified as "first" or "second" may explicitly or implicitly include one or more of such features. In the description of this utility model, "plurality" means two or more, unless otherwise specifically defined.

[0045] See also Figures 1 to 8 , the utility model provides a disassembly device for a switch machine main shaft assembly, comprising: a screw rod part and a fixing part;

[0046] The screw part includes a screw 1 and a screw nut 2;

[0047] See also Figure 2 As shown, the screw rod 1 includes: a screw rod column 101, a screw rod head 102, a screw rod tail end driving part 103 and a transition rod 104;

[0048] The right end of the laterally distributed screw rod column 101 is connected to the left end of the transition rod 104;

[0049] The right end of the transition rod 104 is connected to the left end of the screw head 102;

[0050] The left end of the screw column 101 is provided with a screw tail end driving part 103;

[0051] See also Figure 3 As shown, the screw nut 2 includes an outer hexagonal portion 2001 and an annular raised portion 2003;

[0052] The right side of the outer hexagonal portion 2001 is fixedly connected to the left side of the annular raised portion 2003;

[0053] A first internal threaded through hole 2002 is provided transversely through the outer hexagonal portion 2001 and the annular raised portion 2003;

[0054] The screw rod column 101 on the screw rod 1 has a first external thread 1001 which is threadedly connected to the first internal thread through hole 2002 on the screw rod nut 2 .

[0055] The fixed part includes: a connecting plate 3, a supporting plate 4, a hook 5 and a bottom bracket 6;

[0056] A vertically distributed, long strip-shaped opening slot 3001 is provided at the middle portion of the vertically distributed connecting plate 3;

[0057] The open through slot 3001 is used to pass through the screw rod 1 transversely;

[0058] The upper right end of the connecting plate 3 is fixedly connected to the horizontally distributed supporting plate 4 by two second bolts 8;

[0059] The lower right end of the connecting plate 3 is fixedly connected to the horizontally distributed bottom bracket 6 by two third bolts 11;

[0060] The front and rear ends of the top of the support plate 4 are connected to a hook 5 via two first bolts 7 respectively;

[0061] A hook 5, used for hanging on an external electric switch machine 12;

[0062] The right side of the bottom bracket 6 is used to tighten the external electric switch machine 12.

[0063] In the present invention, the hook 5 is specifically implemented to hang on the top of a side panel of the lower housing 10 of the external electric switch 12, which has an open top; the side panel is provided with a circular main shaft docking hole 1201;

[0064] The main shaft docking hole 1201 is arranged corresponding to the main shaft 9 in the electric switch machine 12, for exposing the main shaft 9; the main shaft 9 has an internal main shaft threaded hole 9001 on one end facing the main shaft docking hole 1201;

[0065] The screw head 102 is used to be threadedly fixedly connected to the spindle internal threaded hole 9001 on the spindle 9;

[0066] The outer hexagonal portion 2001 of the screw rod is used to cause the screw nut 2 to rotate relative to the screw rod 1 under external rotational drive after the screw rod head 102 of the screw rod 1 is threadedly fixedly connected to the spindle internal threaded hole 9001 on the spindle 9 and maintains a fixed position, thereby contacting and squeezing the left side wall of the connecting plate 3, and applying a pulling force toward the screw rod head 102 of the screw rod 1 to the spindle 9 and the spindle sleeve 9002 and needle bearing 9003 fixedly installed on the outer side of the spindle 9;

[0067] It should be noted that the spindle assembly includes a spindle 9 and parts such as a spindle sleeve 9002 and a needle roller bearing 9003 fixedly mounted on the spindle 9.

[0068] In a specific implementation, the right side of the base 6 is used to press against a side panel of the lower housing 10 of the electric switch machine 12 (ie, the side panel provided with the main shaft docking hole 1201 ).

[0069] In specific implementation, the front and rear ends of the support plate 4 protrude from the front and rear sides of the connecting plate 3 respectively;

[0070] In this utility model, the specific implementation is as follows Figure 2 As shown, a circular first through hole 1003 is provided on the screw rod tail end driving portion 103;

[0071] The first through hole 1003 is used for inserting an external tool, and the external tool is used to rotate the screw rod 1 .

[0072] In the present invention, in a specific implementation, the circumferential outer wall of the screw column 101 is provided with a first external thread 1001;

[0073] The circumferential outer wall of the screw head 102 is provided with a second external thread 1002;

[0074] The second external thread 1002 on the screw head 102 is threadedly fixedly connected to the main shaft internal thread hole 9001 on the main shaft 9.

[0075] Furthermore, the screw column 101, the screw head 102, the screw tail end driving portion 103 and the transition rod 104 are integrally formed.

[0076] Furthermore, the overall shape of the transition rod 104 is a truncated cone.

[0077] Furthermore, the transverse central axes of the screw column 101 , the screw head 102 , the screw tail end driving portion 103 , and the transition rod 104 are located on the same straight line.

[0078] Furthermore, the central axis of the first through hole 1003 is perpendicular to the transverse central axis of the screw column 101 .

[0079] In the present invention, in a specific implementation, the outer diameter of the annular protrusion 200 is larger than the longitudinal width of the opening slot 3001. Therefore, when the annular protrusion 200 contacts the connecting plate 3, it can be pressed against the side wall of the connecting plate 3.

[0080] In the present invention, in a specific implementation, the outer hexagonal portion 2001 and the annular raised portion 2003 are integrally formed.

[0081] Furthermore, the central axis of the first internal threaded hole 2002 and the central axis of the screw nut 2 are in the same straight line.

[0082] In the present invention, in a specific implementation, the shape of the opening slot 3001 on the connecting plate 3 is an oblong (i.e., an ellipse);

[0083] It should be noted that the open slot 3001 is in the shape of an elongated strip, specifically an elliptical shape. This design allows the device of the present invention to be compatible with various models of switch machines. Sometimes, the vertical heights of the spindles installed on different models of switch machines are different, and the vertical distances between the spindles and the top of the open-top lower housing 10 of the electric switch machine are different. Through the elongated open slots 3001, the height and position of the screw rod 1 can be adjusted accordingly, allowing the screw rod 1 to connect to the spindles of different heights of various models of switch machines, thereby completing the disassembly of the spindle assembly.

[0084] In this utility model, the specific implementation is as follows Figure 4 As shown, two second through holes 3002 are respectively provided at the upper and lower ends of the connecting plate 3;

[0085] See also Figure 5As shown, two second internal threaded through holes 4001 are vertically provided at the front and rear ends of the support plate 4;

[0086] Two third internal threaded through holes 4002 are provided transversely through the middle of the support plate 4;

[0087] The two third internally threaded through holes 4002 are arranged corresponding to the two second through holes 3002 at the upper end of the connecting plate 3;

[0088] The second bolt 8 passes through the second through hole 3002 at the upper end of the connecting plate 3 and is then threadedly connected to the corresponding third internal threaded through hole 4002 in the middle of the supporting plate 4. Thus, the connecting plate 3 and the supporting plate 4 can be reliably connected and fixed.

[0089] Furthermore, the two second through holes 3002 located at the upper end and the lower end of the connecting plate 3 are respectively symmetrically distributed front to back and are both circular in shape.

[0090] Furthermore, the two second internally threaded through holes 4001 are respectively provided at the front end and the right end of the support plate 4 and are symmetrically distributed on the left and right sides;

[0091] The two third internal threaded through holes 4002 in the middle of the support plate 4 are symmetrically distributed front to back;

[0092] In specific implementation, each hook 5 includes a vertical plate 5001 and a horizontal plate 5003;

[0093] The upper end of the vertical plate 5001 is vertically connected to the right end of the horizontal plate 5003;

[0094] Two third circular through holes 5002 are provided on the horizontal plate 5003;

[0095] The two third through holes 5002 on the two hooks 5 are respectively provided corresponding to the two second internally threaded through holes 4001 on the front and rear ends of the support plate 4;

[0096] After the first bolt 7 passes vertically through the third through hole 5002, it is threadedly fixedly connected with the two second internal thread through holes 4001 on the corresponding position of the support plate 4. Therefore, the utility model can reliably fix the hook 5 to the support plate 4.

[0097] In a specific implementation, two fourth internal threaded through holes 6001 are horizontally provided on the bottom bracket 6;

[0098] The two fourth internally threaded through holes 6001 are arranged corresponding to the two second through holes 3002 at the lower end of the connecting plate 3;

[0099] After the third bolt 11 passes horizontally through the second through hole 3002 at the lower end of the connecting plate 3, it is threadedly fixedly connected with the fourth internal thread through hole 6001 on the corresponding position of the bottom bracket 6. Therefore, the bottom bracket 6 and the connecting plate 3 can be reliably connected and fixed.

[0100] Furthermore, the two fourth internal threaded through holes 6001 located on the base 6 are symmetrically distributed front to back.

[0101] In the present utility model, in specific implementation, the device of the present utility model can be matched with an electric switch machine with a disassembled main shaft group, which is a switch machine with mature existing technology and has been widely used. It can be an electric switch machine of the ZD6 series produced by Tianjin Railway Signal Co., Ltd. For example, it can be a ZD6-D DC electric switch machine produced by Tianjin Railway Signal Co., Ltd.

[0102] It should be noted that the function of a DC electric switch is as follows: the DC motor on it is decelerated by a reducer, and the output torque is amplified to drive the main shaft assembly to rotate. The main shaft assembly pulls the pull rod on the switch through a gear and rack mechanism, which drives the switch point rail, so that the switch point rail is aligned with or separated from the switch base rail, thereby achieving the switch position switching, that is, achieving switching from the fixed position to the reverse position, or from the reverse position to the fixed position. In other words, the switch machine is an important signal infrastructure equipment that changes the position of the switch, changes the direction of the switch opening, locks the switch point rail, and reflects the position and status of the switch.

[0103] It should be noted that the main shaft assembly is the core component of the ZD6 electric switch transmission mechanism, which contains tight bearings. The disassembly quality of the main shaft assembly is directly related to the service life of the ZD6 electric switch.

[0104] In order to more clearly understand the technical solution of the present invention, the working mode of the present invention is described below.

[0105] The utility model provides a disassembly device for a switch machine main shaft assembly, including the following working modes:

[0106] See also Figure 8 As shown, first, the fixed part of the device of the present invention is fixed to the top of a side panel of the lower housing 10 of the electric switch machine 12 (for example, the ZD6-D DC electric switch machine) with an open top; the side panel has a circular main shaft docking hole 1201;

[0107] The main shaft docking hole 1201 is arranged correspondingly to the main shaft 9 in the electric switch machine 12, for exposing the main shaft 9; the main shaft 9 has an internal main shaft threaded hole 9001 at one end thereof facing the main shaft docking hole 1201;

[0108] It should be noted that the lower housing 10 of the existing electric switch machine has an (original) main shaft docking hole 1201; the end of the main shaft 9 facing the main shaft docking hole 1201 has an (original) main shaft internal threaded hole 9001.

[0109] Then, the screw rod 1 of the screw rod part of the device of the present invention is passed horizontally through the open slot 3001 on the connecting plate 3 in the fixed part;

[0110] Then, a tool (such as a cylindrical metal rod or a screwdriver) is used to pass through the first through hole 1003 on the screw rod 1 and screw the second external thread 1002 on the screw rod head 102 of the screw rod 1 into the internal threaded hole 9001 of the main shaft 9 of the electric switch machine, thereby fixing the screw rod head 102 of the screw rod 1 to the main shaft 9 of the electric switch machine.

[0111] Then, while keeping the screw rod 1 fixed in place, use a tool (such as an adjustable wrench) to rotate the outer hexagonal portion 2001 of the screw nut 2 clockwise, causing the screw nut 2 to rotate relative to the screw rod 1. When the annular protrusion 2003 of the screw nut 2 contacts the open through-slot 3001 of the coupling plate 3, the main shaft 9 of the electric switch machine 12 begins to be subjected to an outward force (specifically, a pulling force toward the screw rod head 102 of the screw rod 1).

[0112] Next, the screw nut 2 is rotated clockwise. Since the screw head 102 of the screw 1 is fixedly connected to the main shaft 9, the screw 1, together with the main shaft 9, the main shaft sleeve 9002 and the needle bearing 9003, begins to separate from the installation position in the electric switch machine 12.

[0113] As mentioned above, it should be noted that the spindle assembly includes the spindle 9 and parts such as the spindle sleeve 9002 and the needle roller bearing 9003 fixedly mounted on the spindle 9.

[0114] See also Figure 8 The spindle sleeves 9002 and needle roller bearings 9003 are fixedly mounted on the outer circumferential sides of both ends of the spindle 9. The spindle sleeves 9002 arranged on the outer circumferential sides of the spindle 9 have an interference fit with the spindle docking hole 1201. The needle roller bearings 9003 arranged on the outer circumferential sides of the spindle 9 have an interference fit with the bearing mounting hole 1001 provided on the bottom shell 10. The spindle 9 is connected to the bottom shell 10 of the electric switch machine 12 via the spindle sleeves 9002 and needle roller bearings 9003. The spindle 9 is connected to the reducer box in the electric switch machine 12 via a starter plate. The spindle 9 and the starter plate have a clearance fit. During the operation of the electric switch machine 12, the reducer drives the spindle 9 to rotate via the starter plate. These are the spindle mounting structure designs already available on existing electric switch machines and will not be described in detail here.

[0115] It should be noted that, when an external pulling force is applied, the main shaft sleeve 9002 fixedly mounted on the main shaft 9 is separated from the main shaft docking hole 1201, and the needle roller bearing 9003 fixedly mounted on the main shaft 9 is separated from the bearing mounting hole 1001 of the bottom shell 10, thereby separating the main shaft 9 together with the main shaft sleeve 9002 and the needle roller bearing 9003 from the electric switch machine 12.

[0116] Then, continue to rotate the screw nut 2 clockwise until the main shaft 9, together with the main shaft sleeve 9002 and the needle bearing 9003, are completely separated from the electric switch machine 12, thus completing the disassembly operation of the main shaft 9 (i.e., the main shaft assembly).

[0117] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications should also be regarded as within the scope of protection of the present invention.

Claims

1. A disassembly device for a switch machine main shaft assembly, characterized in that: include: Screw part and fixed part; The screw rod part includes a screw rod (1) and a screw rod nut (2); The screw rod (1) comprises a screw rod column (101), a screw rod head (102), a screw rod tail end driving portion (103) and a transition rod (104); The right end of the laterally distributed screw rod column (101) is connected to the left end of the transition rod (104); The right end of the transition rod (104) is connected to the left end of the screw rod head (102); The left end of the screw rod column (101) is provided with a screw rod tail end driving part (103); The screw nut (2) comprises an outer hexagonal portion (2001) and an annular raised portion (2003); The right side of the outer hexagonal portion (2001) is fixedly connected to the left side of the annular raised portion (2003); A first internal threaded through hole (2002) is provided transversely through the outer hexagonal portion (2001) and the annular raised portion (2003); The screw rod column (101) on the screw rod (1) has a first external thread (1001) which is threadedly connected to the first internal thread through hole (2002) on the screw rod nut (2); The fixed part includes: a connecting plate (3), a supporting plate (4), a hook (5) and a bottom bracket (6); A long strip-shaped open through slot (3001) is provided at the middle portion of the vertically distributed connecting plate (3); An open through slot (3001) for passing the screw rod (1) transversely; The upper right end of the connecting plate (3) is fixedly connected to the supporting plate (4); The lower right end of the connecting plate (3) is fixedly connected to the bottom bracket (6); The front and rear ends of the top of the support plate (4) are connected to a hook (5); A hook (5) for hanging on an external electric switch machine (12); The right side of the bottom support (6) is used to tighten the external electric switch machine (12).

2. The disassembly device of the switch machine main shaft assembly according to claim 1, characterized in that: A hook (5) is used to be hung on the top of a side panel of a lower housing (10) with an open top of an external electric switch machine (12); a circular main shaft docking hole (1201) is formed on the side panel; The main shaft docking hole (1201) is arranged correspondingly to the main shaft (9) in the electric switch machine (12) to expose the main shaft (9); One end of the main shaft (9) facing the main shaft docking hole (1201) has a main shaft internal threaded hole (9001); The screw rod head (102) is used for being threadedly fixedly connected with the main shaft internal threaded hole (9001) on the main shaft (9).

3. The disassembly device of the switch machine main shaft assembly according to claim 2, characterized in that: The outer hexagonal portion (2001) of the screw rod part is used for, when the screw rod head (102) of the screw rod (1) is threadedly fixedly connected with the spindle internal threaded hole (9001) on the spindle (9) and the position is kept unchanged, under the rotational drive of an external force, causing the screw nut (2) to rotate relative to the screw rod (1), contact and squeeze the left side wall of the connecting plate (3), and apply a pulling force toward the screw rod head (102) of the screw rod (1) to the spindle (9) and the spindle sleeve (9002) and the needle bearing (9003) fixedly installed on the circumferential outer side of the spindle (9).

4. The disassembly device of the switch machine main shaft assembly according to claim 2, characterized in that: On the right side of the bottom support (6), a side panel for tightening the lower housing (10) of the electric switch machine (12) is provided with a main shaft docking hole (1201); The front and rear ends of the support plate (4) protrude from the front and rear sides of the connecting plate (3) respectively; The outer diameter of the annular raised portion (200) is greater than the longitudinal width of the open through groove (3001).

5. The disassembly device of the switch machine main shaft assembly according to claim 1, characterized in that: A circular first through hole (1003) is provided on the screw rod tail end driving portion (103); A first through hole (1003) is used for inserting an external tool, wherein the external tool is used to rotate the screw (1); and / or, The circumferential outer wall of the screw rod column (101) is provided with a first external thread (1001); The circumferential outer wall of the screw rod head (102) is provided with a second external thread (1002); The second external thread (1002) on the screw rod head (102) is threadedly fixedly connected to the main shaft internal thread hole (9001) on the main shaft (9).

6. The disassembly device of the switch machine main shaft assembly according to any one of claims 1 to 5, characterized in that: The upper right end of the connecting plate (3) is fixedly connected to the supporting plate (4) via two second bolts (8); Two second through holes (3002) are respectively provided at the upper and lower ends of the connecting plate (3); Two second internally threaded through holes (4001) are vertically provided at the front and rear ends of the support plate (4); Two third internally threaded through holes (4002) are provided transversely through the middle portion of the support plate (4); Two third internally threaded through holes (4002) are arranged correspondingly to the two second through holes (3002) at the upper end of the connecting plate (3); After the second bolt (8) passes through the second through hole (3002) at the upper end of the connecting plate (3) transversely, it is threadedly fixedly connected with the third internal thread through hole (4002) at the middle of the corresponding supporting plate (4).

7. The disassembly device of the switch machine main shaft assembly according to any one of claims 1 to 6, characterized in that: The front and rear ends of the top of the support plate (4) are connected to a hook (5) via two first bolts (7) respectively; Each hook (5) comprises a vertical plate (5001) and a horizontal plate (5003); The upper end of the vertical plate (5001) is vertically connected to the right end of the horizontal plate (5003); Two third circular through holes (5002) are provided on the horizontal plate (5003) and are vertically penetrated; The two third through holes (5002) respectively provided on the two hooks (5) are arranged correspondingly to the two second internally threaded through holes (4001) respectively provided on the front and rear ends of the support plate (4); After the first bolt (7) passes vertically through the third through hole (5002), it is threadedly fixedly connected to the two second internally threaded through holes (4001) on the support plate (4) at corresponding positions.

8. The disassembly device of the switch machine main shaft assembly according to claim 1, characterized in that: The lower right end of the connecting plate (3) is fixedly connected to the bottom bracket (6) via two third bolts (11); Two fourth internal threaded through holes (6001) are provided on the bottom bracket (6) in a transverse direction; Two fourth internally threaded through holes (6001) are arranged correspondingly to the two second through holes (3002) at the lower end of the connecting plate (3); After the third bolt (11) passes through the second through hole (3002) at the lower end of the connecting plate (3) transversely, it is threadedly fixedly connected with the fourth internal threaded through hole (6001) on the corresponding base (6).

9. The disassembly device of the switch machine main shaft assembly according to claim 1, characterized in that: The screw rod column (101), the screw rod head (102), the screw rod tail end driving part (103) and the transition rod (104) are integrally formed; The overall shape of the transition rod (104) is a truncated cone shape; The transverse central axes of the screw rod column (101), the screw rod head (102), the screw rod tail end driving portion (103) and the transition rod (104) are located on the same straight line; The central axis of the first through hole (1003) is perpendicular to the transverse central axis of the screw rod column (101); The outer hexagonal portion (2001) and the annular raised portion (2003) are integrally formed; The central axis of the first internal threaded hole (2002) and the central axis of the screw nut (2) are in the same straight line.

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