Protective device of motor car traction motor

Abstract

The utility model provides a protective device of a motor car traction motor, which belongs to the technical field of motor protection and is provided with a U-shaped plate, the opposite surfaces of two short plates on the U-shaped plate are provided with abutting plates which move longitudinally and are rotatably connected, and the abutting plates are used for abutting against the side wall of the traction motor; a through hole for a traction motor rotating shaft to pass through is formed in the middle of a long plate of the U-shaped plate, two supporting plates symmetrically arranged relative to the through hole are fixedly installed on the U-shaped plate, and a protection assembly arranged outside the traction motor rotating shaft in a sleeving mode is slidably connected into the supporting plates; a sliding groove is formed in the supporting plate, and the protection assembly comprises a moving plate slidably connected into the sliding groove; the utility model aims to provide a protective device of a motor car traction motor to overcome the defects in the prior art, and aims to solve the technical problem that an existing structure for protecting a traction motor rotating shaft is inconvenient to adjust according to the size of the rotating shaft, so that the use range is limited.

Description

Technical Field

[0001] This utility model belongs to the field of motor protection technology, specifically, it relates to a protective device for a train traction motor. Background Technology

[0002] The requirements for the shaft in the manufacturing of traction motors are very strict, but the existing traction motor shafts do not have a good protective structure, so there is a risk of damage during transportation or storage.

[0003] The utility model application CN201820589000.3 (announcement number CN208265009U) discloses a high-protection traction motor transport frame, including a base frame and an outer cover. The base frame includes a base frame, with multiple bottom beams fixed to the bottom side of the base frame and two connecting plates fixed to the upper side. Each connecting plate has a fixing hole on both sides. A support beam is fixed to the middle of both sides of the base frame. A locking plate is fixed between the support beam and the base frame. A locking component is provided inside the locking plate. The locking component includes a lower locking plate hinged to the inside of the locking plate and an upper locking plate hinged to one side of the lower locking plate.

[0004] The aforementioned patent is not convenient for adjustment according to the size of the rotating shaft, which limits its scope of application. Utility Model Content

[0005] The purpose of this utility model is to address the shortcomings of existing technologies by providing a protective device for the traction motor of a high-speed train. This device solves the technical problem that existing structures for protecting the traction motor shaft are not easy to adjust according to the size of the shaft, thus limiting their application.

[0006] This utility model is implemented as follows:

[0007] This utility model provides a protective device for a train traction motor, which includes a U-shaped plate. On the opposite side of the two short plates on the U-shaped plate, there are longitudinally movable and rotatably connected abutment plates. The abutment plates are used to abut against the side wall of the traction motor.

[0008] The U-shaped plate has through holes in the middle of its long plate for the traction motor shaft to pass through. Two support plates symmetrically arranged about the through holes are fixedly installed on the U-shaped plate. A protective component sleeved on the outside of the traction motor shaft is slidably connected inside the support plate.

[0009] The support plate has a sliding groove, and the protective component includes a movable plate slidably connected in the sliding groove. The ends of the two movable plates away from the U-shaped plate are connected to a connecting plate, and the side of the connecting plate close to the U-shaped plate is provided with an adjustment component.

[0010] Based on the above technical solution, the protective device for a train traction motor of this utility model can be further improved as follows:

[0011] Furthermore, the adjustment assembly includes a rotating rod rotatably connected to the middle of the connecting plate, and multiple slide rails are fixedly installed at equal intervals along the rotating rod on the connecting plate. Each slide rail has a sliding plate slidably connected inside it, and an arc plate is fixedly connected to the sliding plate.

[0012] Furthermore, the adjustment assembly also includes a turntable coaxially mounted with the rotating rod. The turntable has multiple arc grooves at equal intervals corresponding to the number of slide rails. Each arc groove is slidably connected to a guide rod, and the guide rod is fixedly mounted on the slide plate.

[0013] Furthermore, the right end of the support plate is provided with a through threaded hole A, and the movable plate is provided with a plurality of through threaded holes B at linear and equidistant intervals. A bolt is threadedly connected to one of the threaded holes B and the threaded hole A.

[0014] Furthermore, each of the short sides of the U-shaped plate is provided with a threaded through hole C, and each of the threaded through holes C is threaded with a screw rod, and the abutment plate is fixedly installed on the side of each screw rod that is close to each other.

[0015] Compared with the prior art, the beneficial effects of the protective device for a train traction motor provided by this utility model are: by setting a sliding connecting moving plate, it can be applied to shafts of various lengths; by setting an adjusting component, it can be applied to shafts of various diameters; by setting a rotating connecting abutment plate, the protective device can be installed on the traction motor, and it can be applied to traction motors of various specifications. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

[0017] Figure 1 This is a front view of a protective device for a high-speed train traction motor;

[0018] Figure 2 Axonometric drawings of the support plate and the movable plate;

[0019] Figure 3 To adjust the left view of the component;

[0020] Figure 4 To adjust the isometric view of the component;

[0021] The attached diagram lists the components represented by each number as follows:

[0022] 1. U-shaped plate; 11. Through hole; 21. Abutment plate; 22. Threaded through hole C; 23. Screw; 31. Support plate; 32. Slide groove; 32. Moving plate; 33. Connecting plate; 34. Drive motor; 41. Rotating rod; 42. Slide rail; 43. Slide plate; 44. Arc plate; 45. Turntable; 46. Arc groove; 47. Guide rod; 51. Threaded through hole A; 52. Threaded through hole B. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0024] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0025] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0026] In the description of this utility model, 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 component 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.

[0027] 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.

[0028] Example

[0029] like Figure 1 As shown, this utility model provides a protective device for a train traction motor, which includes a U-shaped plate 1. Each of the two short plates on the U-shaped plate 1 has a longitudinally movable and rotatably connected abutment plate 21 on its opposite side. The abutment plate 21 is used to abut against the side wall of the traction motor.

[0030] The U-shaped plate 1 has through holes 11 in the middle of its long plate for the traction motor shaft to pass through. Two support plates 31 are fixedly installed on the U-shaped plate 1, which are symmetrically arranged about the through holes 11. A protective component is slidably connected inside the support plate 31 and sleeved on the outside of the traction motor shaft.

[0031] The support plate 31 has a sliding groove 310. The protective component includes a movable plate 32 that is slidably connected in the sliding groove 310. The ends of the two movable plates 32 that are away from the U-shaped plate 1 are connected to a connecting plate 33. An adjustment component is provided on the side of the connecting plate 33 that is close to the U-shaped plate 1.

[0032] Optionally, in the above technical solution, the adjustment component includes a rotating rod 41 rotatably connected to the middle of the connecting plate 33, and multiple slide rails 42 are fixedly installed on the connecting plate 33 at equal intervals along the rotating rod 41. Slide plates 43 are slidably connected in each slide rail 42, and arc plates 44 are fixedly connected on the slide plates 43.

[0033] Optionally, in the above technical solution, the adjustment component also includes a turntable 45 coaxially mounted with the rotating rod 41. The turntable 45 has multiple arc grooves 46 equidistantly formed, corresponding to the number of slide rails 42. Each arc groove 46 is slidably connected to a guide rod 47, which is fixedly mounted on the slide plate 43.

[0034] Optionally, in the above technical solution, the right end of the support plate 31 is provided with a through threaded hole A51, and the movable plate 32 is provided with multiple through threaded holes B52 at linear and equidistant intervals. A bolt is threadedly connected to one of the threaded holes B52 and the threaded hole A51.

[0035] Optionally, in the above technical solution, threaded through holes C22 are provided on the short side of the U-shaped plate 1, and screws 23 are threadedly connected in the threaded through holes C22. Abutment plates 21 are fixedly installed on the side of the screws 23 that are close to each other.

[0036] Furthermore, a rubber layer is fixedly installed on the inner arc surface of the arc plate 44 (i.e. the side that contacts the rotating shaft);

[0037] Furthermore, a drive motor 34 is fixedly installed on the outer wall of the connecting plate 33. The output shaft of the drive motor 34 is connected to the rotating rod 41 through a coupling, and is used to drive the turntable 45 to rotate through the rotating rod 41. The output shaft of the drive motor 34 can rotate forward or backward.

[0038] Working principle:

[0039] In the initial state, the protective components are separated from the device, that is, the movable plate 32 is not inserted into the support plate 31, and the distance between each arc plate 44 is at its maximum (that is, the diameter of the circle formed is at its maximum).

[0040] In use: the shaft of the traction motor (i.e. the shaft of the output end) is inserted through the through hole 11 into the support plate 31, the abutment plate 21 is abutted against the outer wall of the traction motor, so that the device is installed on the traction motor, the protective components are installed on the device, the distance of the moving plate 32 extending into the support plate 31 is adjusted according to the length of the shaft, and the diameter of the arc plate 44 is adjusted according to the diameter of rotation.

[0041] The length adjustment method is as follows: insert the movable plate 32 into the support plate 31, and align a threaded through hole B52 with a threaded through hole A51. Then, screw the bolt into the threaded through hole A51 and its corresponding threaded through hole B52, so that the length of the movable plate 32 and the support plate 31 is slightly greater than the length of the rotating shaft located at the support plate 31 (because part of the rotating shaft is located in the through hole 11).

[0042] The diameter adjustment method is as follows: the rotating rod 41 rotates counterclockwise to drive the turntable 45 to rotate. The rotation of the turntable 45 pushes the guide rod 47 to move along the arc groove 46. Under the action of connecting with the slide plate 43, the slide plate 43 is pushed to move inward along the slide rail 42, so that multiple arc plates 44 move inward at the same time until they are attached to the circumferential surface of the rotating shaft.

[0043] The protective components reduce external contact with the shaft, thus minimizing damage to the shaft.

[0044] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A protective device for a train traction motor, characterized in that, It has a U-shaped plate (1), and on the opposite side of the two short plates on the U-shaped plate (1) there are longitudinally movable and rotatably connected abutment plates (21), and the abutment plates (21) are used to abut against the side wall of the traction motor; The U-shaped plate (1) has through holes (11) in the middle of its long plate for the traction motor shaft to pass through. Two support plates (31) are fixedly installed on the U-shaped plate (1) symmetrically arranged about the through holes (11). A protective component sleeved on the outside of the traction motor shaft is slidably connected inside the support plate (31). The support plate (31) is provided with a sliding groove (310), and the protective component includes a movable plate (32) slidably connected in the sliding groove (310). The two movable plates (32) are connected to a connecting plate (33) at the ends away from the U-shaped plate (1). The connecting plate (33) is provided with an adjustment component on the side close to the U-shaped plate (1).

2. The protective device for a train traction motor according to claim 1, characterized in that, The adjustment assembly includes a rotating rod (41) rotatably connected to the middle of the connecting plate (33). Multiple slide rails (42) are fixedly installed on the connecting plate (33) at equal intervals along the rotating rod (41). Slide plates (43) are slidably connected inside each slide rail (42). Arc plates (44) are fixedly connected to each slide plate (43).

3. The protective device for a train traction motor according to claim 2, characterized in that, The adjustment assembly also includes a turntable (45) coaxially mounted with the rotating rod (41). The turntable (45) has multiple arc grooves (46) equidistantly spaced, corresponding to the number of slide rails (42). Each arc groove (46) is slidably connected to a guide rod (47), and the guide rod (47) is fixedly mounted on the slide plate (43).

4. The protective device for a train traction motor according to claim 1, characterized in that, The right end of the support plate (31) is provided with a through threaded hole A (51), and the movable plate (32) is provided with a plurality of through threaded holes B (52) at equal intervals. A bolt is threadedly connected to one of the through threaded holes B (52) and the other through threaded hole A (51).

5. A protective device for a train traction motor according to claim 1, characterized in that, The short side of the U-shaped plate (1) is provided with threaded through holes C (22), and each threaded through hole C (22) is threaded with a screw (23). The abutment plate (21) is fixedly installed on the side of each screw (23) that is close to each other.

Images