Electric drive bridge cold shrinkage neck device

Abstract

The utility model relates to the technical field of vehicle accessories, and particularly discloses an electric drive axle cold shrinkage neck device which comprises a fixed frame plate. A cold shrinkage neck unit is arranged on the side surface of the fixed frame plate; a limiting unit is arranged on the upper surface of the inner side of the fixed frame plate; the fixed frame plate is in pin connection with a hydraulic oil cylinder corresponding to the limiting unit; the movable end of the hydraulic oil cylinder is in pin connection with an adjustable extrusion plate; the hydraulic oil cylinder in pin connection with the fixed frame plate can adapt to an existing hydraulic oil cylinder, then the height of the adjustable extrusion plate at the tail end of the hydraulic oil cylinder is adjusted, the adjustable extrusion plate is kept perpendicular to the ground, the end face of the electric drive bridge can be in plane contact, and therefore the electric drive bridge can be stably stressed and pushed to enter a cold necking shrinkage unit to be subjected to a necking shrinkage process; and meanwhile, by adjusting the height of the adjustable extrusion plate, the electric drive bridges of different sizes can be adapted to be pushed into the cold necking shrinkage unit to be subjected to the necking process, and the problem that an existing necking device cannot be adapted to the electric drive bridges of different sizes is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicle accessories, and specifically relates to an electric drive axle cold necking device. Background Art

[0002] An electric drive axle, also known as an "electric wheel drive axle", is an important component in an electric vehicle; through motor control, the rotation of the wheels and the forward or backward movement of the vehicle are realized; the electric drive axle includes components such as a motor, a transmission, a steering mechanism, and an electronic control device; the electric drive axle is one of the core components that control the driving direction and speed of an electric vehicle.

[0003] The Chinese invention patent with the publication number CN105499417A disclosed a pipe end necking device on April 20, 2016, which relates to a necking die; it includes a frame, a clamping head, a disc spring, and a pressing sleeve; the clamping head is divided into multiple independent blocks, a disc spring is sleeved on its outer periphery, and a tension spring is arranged inside; when the disc spring is compressed, its inner diameter becomes smaller, squeezing the clamping head to make the clamping head tighten. When the disc spring is not deformed, the tension spring can achieve a tension effect. By tightening the clamping head, the clamping head presses against the pipe end to compress the pipe port to achieve necking. In this solution, the pipe remains stationary during the necking process, so there is no restriction on the pipe shape.

[0004] However, the above-mentioned disclosed solution has the following deficiencies: The necking device in the prior art only neckes the port of the pipe. Such a device has a small volume and small pressure, and cannot meet the necking requirements of the port of the electric drive axle, so it is impossible to perform necking operations on the ports of large structures such as electric drive axles. Summary of the Utility Model

[0005] The purpose of the utility model is to solve the technical problem that the necking device in the prior art only neckes the port of the pipe. Such a device has a small volume and small pressure, and cannot meet the necking requirements of the port of the electric drive axle, so it is impossible to perform necking operations on the ports of large structures such as electric drive axles, and to provide an electric drive axle cold necking device.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions to implement;

[0007] An electric drive axle cold necking device described in the utility model includes a fixed frame plate; a cold necking unit is arranged on the side surface of the fixed frame plate; a limiting unit is arranged on the upper surface of the inner side of the fixed frame plate; a hydraulic cylinder is pin-connected to the fixed frame plate corresponding to the limiting unit; the movable end of the hydraulic cylinder is pin-connected to an adjustable pressing plate; a horizontal cushion plate is placed below the hydraulic cylinder.

[0008] Furthermore, the cold shrinkage neck unit includes a positioning groove; the positioning groove is opened on the fixed frame plate; a necking die is slidably inserted into the positioning groove; a plurality of threaded rods are fixedly connected to the necking die; a fastening plate is sleeved on the threaded rod and a nut is threadedly sleeved on the threaded rod.

[0009] Furthermore, the limiting unit includes symmetric clamping grooves; the symmetric clamping grooves are symmetrically opened on the fixed frame plate; a lifting plate is slidably inserted into the symmetric clamping grooves; a suspended frame is slidably connected between the lifting plates; a symmetric threaded shaft is rotatably connected inside the suspended frame; one end of the symmetric threaded shaft is fixedly connected with a motor; a slider is threadedly sleeved on the symmetric threaded shaft; a movable top plate is pin-connected to the slider; the upper end of the movable top plate is movably connected with a limiting plate; the lower end of the limiting plate is movably sleeved on a spaced positioning plate; avoidance grooves are opened on the suspended frame and the spaced positioning plate corresponding to the movable top plate.

[0010] Furthermore, a clamping plate is fixedly connected to the inner side surface of the limiting plate; the spaced positioning plates are symmetrically fixedly connected to the upper surface of the suspended frame.

[0011] Furthermore, adjusting grooves are symmetrically opened on the lifting plates; bolts pass through the adjusting grooves and are threadedly fixed to the side surface of the suspended frame.

[0012] An electric drive axle cold shrinkage neck device provided by the present utility model has the following beneficial effects:

[0013] 1. By the hydraulic cylinder pin-connected to the fixed frame plate, the present utility model can adapt to the existing hydraulic cylinder, and then adjust the height of the adjustable pressing plate at the end of the hydraulic cylinder and keep it perpendicular to the ground, so as to be in plane contact with the end face of the electric drive axle, so as to stably apply force to push the electric drive axle into the cold shrinkage neck unit for the necking process. At the same time, by adjusting the height of the adjustable pressing plate, the electric drive axles of different sizes can be adapted to be pushed into the cold shrinkage neck unit for the necking process, solving the problem that the existing necking device cannot adapt to electric drive axles of different sizes.

[0014] 2. Through the sliding fit between the positioning groove and the necking die, the present utility model enables the height of the necking die to be adjusted in the positioning groove, and the fixing is completed by rotating the nut to squeeze the fastening plate into contact with the fixed frame plate, so as to adapt to the necking requirements of electric drive axles of different sizes and align the center heights of electric drive axles of different sizes, solving the problem that the existing cold shrinkage neck device cannot adapt to electric drive axles of different sizes. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The following further describes in detail the specific implementation manners of the present utility model with reference to the drawings;

[0016] Figure 1 It is an isometric structural schematic diagram of the present utility model;

[0017] Figure 2 is a front view structural schematic diagram of the present utility model;

[0018] Figure 3 is a partial side view structural schematic diagram of the present utility model.

[0019] Explanation of reference numerals in the figure: 1, fixed frame plate; 2, positioning groove; 3, reduced-diameter die; 4, threaded rod; 5, fastening plate; 6, hydraulic cylinder; 7, adjustable extrusion plate; 8, horizontal cushion plate; 9, symmetric clamping groove; 10, elevation plate; 11, adjustment groove; 12, motor; 13, symmetric threaded shaft; 14, slider; 15, movable top plate; 16, limiting plate; 17, clamping plate; 18, spaced positioning plate; 19, avoidance groove; 20, suspended frame. Detailed implementation manners

[0020] It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model.

[0021] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present utility model.

[0022] It should be noted that all directional indications (such as up-down-left-right-front-back...) in the embodiments of the present utility model are only used to explain the relative positional relationship and movement conditions between components in a specific posture (as shown in the drawings). If the specific posture changes, the directional indications will also change accordingly. The described connection can be a direct connection or an indirect connection.

[0023] Please refer to Figures 1-3As shown in the figure, an electric drive bridge cold necking device includes a fixed frame plate 1; a cold necking unit is provided on the side surface of the fixed frame plate 1; a limiting unit is provided on the upper surface inside the fixed frame plate 1; a hydraulic cylinder 6 is pin-connected to the fixed frame plate 1 corresponding to the limiting unit; the movable end of the hydraulic cylinder 6 is pin-connected to an adjustable pressing plate 7; a horizontal cushion plate 8 is placed below the hydraulic cylinder 6; during operation, through the hydraulic cylinder 6 pin-connected to the fixed frame plate 1, the existing hydraulic cylinder 6 can be adapted, and then the height of the adjustable pressing plate 7 at the end of the hydraulic cylinder 6 can be adjusted and kept perpendicular to the ground, so that the end face of the electric drive bridge can be contacted flatly, and the electric drive bridge can be stably forced to enter the cold necking unit for the necking process. At the same time, by adjusting the height of the adjustable pressing plate 7, electric drive bridges of different sizes can be adapted to be pushed into the cold necking unit for the necking process, solving the problem that the existing necking device cannot adapt to electric drive bridges of different sizes.

[0024] The cold necking unit includes a positioning groove 2; the positioning groove 2 is opened on the fixed frame plate 1; a necking die 3 is slidably inserted into the positioning groove 2; a plurality of threaded rods 4 are fixedly connected to the necking die 3; a fastening plate 5 is sleeved on the threaded rod 4 and a nut is threadedly connected; during operation, through the sliding fit between the positioning groove 2 and the necking die 3, the height of the necking die 3 can be adjusted in the positioning groove 2, and the fastening plate 5 is squeezed by rotating the nut to contact the fixed frame plate 1 to complete the fixation, so as to adapt to the necking requirements of electric drive bridges of different sizes, and the center height of electric drive bridges of different sizes can be aligned, solving the problem that the existing cold necking device cannot adapt to electric drive bridges of different sizes.

[0025] The limiting unit includes symmetric clamping grooves 9; the symmetric clamping grooves 9 are symmetrically opened on the fixed frame plate 1; a lifting plate 10 is slidably sleeved in the symmetric clamping grooves 9; a suspended frame 20 is slidably connected between the lifting plates 10; a symmetric threaded shaft 13 is rotatably connected inside the suspended frame 20; one end of the symmetric threaded shaft 13 is fixedly connected to a motor 12; a slider 14 is threadedly sleeved on the symmetric threaded shaft 13; the slider 14 is pin-connected to a movable top plate 15; the upper end of the movable top plate 15 is movably connected to a limiting plate 16; the lower end of the limiting plate 16 is movably sleeved on a spaced positioning plate 18; avoidance grooves 19 are opened on the suspended frame 20 and the spaced positioning plate 18 corresponding to the movable top plate 15; during operation, the motor 12 is energized to drive the symmetric threaded shaft 13 to rotate, so that the two symmetric sliders 14 approach or move away from each other, thereby changing the angles of the movable top plate 15 and the limiting plate 16, and thus changing the angle between the two limiting plates 16, and cooperating with adjusting the connection position between the limiting plate 16 and the spaced positioning plate 18, so as to achieve the function of adapting electric drive bridges of different sizes for cold necking, solving the problem that the existing cold necking device cannot meet the processing requirements of electric drive bridges of different sizes.

[0026] A clamping plate 17 is fixedly connected to the inner side surface of the limiting plate 16; the spaced positioning plates 18 are symmetrically and fixedly connected to the upper surface of the suspended frame 20; during operation, when the electric drive axle is between the two limiting plates 16 through the clamping plate 17, it can maintain a centered static state, thus facilitating alignment with the necking die 3 for necking operation.

[0027] Adjustment grooves 11 are symmetrically formed in the lifting plate 10; bolts pass through the adjustment grooves 11 and are threadedly fixed to the side surface of the suspended frame 20; during operation, by rotating the bolts to reduce friction, the height of the suspended frame 20 can be adjusted, so as to adapt to electric drive axles of different sizes, thus realizing two ways to adjust and adapt to electric drive axles of different sizes, making the application range wider and solving the problem that the existing necking device is specifically designed for one size and cannot be universal.

[0028] With the above scheme, when the utility model is in use, through the hydraulic cylinder 6 pin-connected to the fixed frame plate 1, it can adapt to the existing hydraulic cylinder 6, and then adjust the height of the adjustable pressing plate 7 at the end of the hydraulic cylinder 6 and keep it perpendicular to the ground, so as to be in planar contact with the end face of the electric drive axle, and thus can stably apply force to push the electric drive axle into the cold necking unit for necking process. At the same time, by adjusting the height of the adjustable pressing plate 7, it can adapt to electric drive axles of different sizes to be pushed into the cold necking unit for necking process, solving the problem that the existing necking device cannot adapt to electric drive axles of different sizes; through the sliding fit between the positioning groove 2 and the necking die 3, the height of the necking die 3 can be adjusted in the positioning groove 2, and the fixing plate 5 is squeezed by rotating the nut to contact the fixed frame plate 1 to complete the fixation, so as to adapt to the necking requirements of electric drive axles of different sizes and align the center heights of electric drive axles of different sizes, solving the problem that the existing cold necking device cannot adapt to electric drive axles of different sizes; by energizing the motor 12 to drive the symmetric threaded shafts 13 to rotate, the two symmetric sliders 14 approach or move away from each other, thus changing the angles of the movable top plate 15 and the limiting plates 16, and thus changing the angle between the two limiting plates 16, and cooperating with adjusting the connection position between the limiting plates 16 and the spaced positioning plates 18, so as to achieve the function of adapting to electric drive axles of different sizes for cold necking, solving the problem that the existing cold necking device cannot meet the processing requirements of electric drive axles of different sizes; when the electric drive axle is between the two limiting plates 16 through the clamping plate 17, it can maintain a centered static state, thus facilitating alignment with the necking die 3 for necking operation; by rotating the bolts to reduce friction, the height of the suspended frame 20 can be adjusted, so as to adapt to electric drive axles of different sizes, thus realizing two ways to adjust and adapt to electric drive axles of different sizes, making the application range wider and solving the problem that the existing necking device is specifically designed for one size and cannot be universal.

[0029] In the description of this specification, the descriptions referring to terms such as "one embodiment", "example", "specific example", etc. mean that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0030] The above shows and describes the basic principles, main features and advantages of the present utility model. Those skilled in the art should understand that the present utility model is not limited by the above embodiments. The above embodiments and the descriptions in the specification only illustrate the principles of the present utility model. Without departing from the spirit and scope of the present utility model, the present utility model will have various changes and improvements, and these changes and improvements all fall within the scope of the present utility model claimed.

Claims

1. An electric drive axle cold shrink neck device, characterized in that; It comprises a fixed frame plate (1); a cold shrink neck unit is provided on the side of the fixed frame plate (1); a limit unit is provided on the inner upper surface of the fixed frame plate (1); a hydraulic cylinder (6) is connected to the corresponding limit unit pin on the fixed frame plate (1); the movable end pin of the hydraulic cylinder (6) is connected to an adjustable extrusion plate (7); and a horizontal pad (8) is placed below the hydraulic cylinder (6).

2. The electric drive axle cold shrink neck device according to claim 1, characterized in that: The cold shrink neck unit comprises a positioning groove (2); the positioning groove (2) is arranged on a fixed frame plate (1); a reducing die (3) is slidably inserted into the positioning groove (2); a plurality of threaded rods (4) are fixedly connected to the reducing die (3); a fastening plate (5) is sleeved on the threaded rod (4) and a nut is threadedly sleeved on the threaded rod (4).

3. The electric drive axle cold shrink neck device according to claim 2, characterized in that: The limiting unit comprises a symmetrical slot (9); the symmetrical slot (9) is symmetrically arranged on the fixed frame plate (1); a lifting plate (10) is slidably sleeved in the symmetrical slot (9); a suspended frame (20) is slidably connected between the lifting plates (10); a symmetrical threaded shaft (13) is rotatably connected in the suspended frame (20); a motor (12) is fixedly connected to one end of the symmetrical threaded shaft (13); a slider (14) is threadedly sleeved on the symmetrical threaded shaft (13); a movable top plate (15) is pin-connected on the slider (14); the upper end of the movable top plate (15) is movably connected to the limiting plate (16); the lower end of the limiting plate (16) is movably sleeved on the spacing positioning plate (18); and avoidance grooves (19) are arranged on the suspension frame (20) and the spacing positioning plate (18) corresponding to the movable top plate (15).

4. The electric drive axle cold shrink neck device according to claim 3, characterized in that: A locking plate (17) is fixedly connected to the inner side surface of the limiting plate (16); and the spacing positioning plate (18) is symmetrically fixedly connected to the upper surface of the suspended frame (20).

5. The electric drive axle cold shrink neck device according to claim 4, characterized in that: The lifting plate (10) is symmetrically provided with adjustment grooves (11); bolts pass through the adjustment grooves (11), and the bolt threads are fixedly connected to the side of the suspended frame (20).

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