Transmission shaft straightening device

Abstract

The utility model discloses a transmission shaft straightening device, which relates to the technical field of transmission shaft processing, and comprises a support frame and a fixing ring, the side end part of the support frame is provided with two fixing blocks in a sliding manner, the bottom end of each fixing block is fixedly provided with a hydraulic rod, the bottom end of each hydraulic rod is fixedly provided with a support plate, and the support plate is fixedly provided with a hydraulic cylinder. A ballast plate is rotatably installed at the tail end of each supporting plate, side plates are slidably installed at the two side ends of each ballast plate, at least two heating rods are fixedly installed in each side plate, a motor drives a driving rod to rotate, threads at the two ends of the driving rod are designed in the reverse direction, and two fixing blocks are driven to move in the reverse direction; the positions of the two fixing blocks are adjusted, the pull rods are installed at the side ends of the two side plates and can rotate, the auxiliary plate and the pull rods are in a sliding connection state, meanwhile, the two pull rods drive the auxiliary plate to be attached and extruded to the surface of the transmission shaft, and the stress area is increased.

Description

TECHNICAL FIELD

[0001] The utility model relates to transmission shaft processing technical field, especially transmission shaft straightening device. BACKGROUND

[0002] Transmission shaft straightening, the pressure head of the press is used to exert pressure on the curved part, gradually adjust the pressure size, make transmission shaft elastic deformation, thereby straightening the curved part, in practical application, transmission shaft straightening device usually needs the following technologies:

[0003] 1, clamping structure, usually by two clamps, respectively for clamping the both ends of transmission shaft;

[0004] 2, detection structure, detection structure can accurately measure the bending degree and deformation of transmission shaft;

[0005] 3, loading structure, exerting external force on transmission shaft, make transmission shaft elastic deformation.

[0006] At present, the existing straightening device (such as patent publication number: CN219520266U), discloses a kind of transmission shaft straightening device, by the automatic clamping mechanism being arranged in transmission shaft straightening device, further to reach the purpose that device is automatically clamped to transmission shaft, facilitate staff operation, improve the work efficiency of staff, ensure the processing progress to transmission shaft.

[0007] Transmission shaft material has higher hardness, leading to poor plasticity, in extrusion straightening process, the extrusion friction received easily leads to the surface of transmission shaft to produce damage, and extrusion straightening, transmission shaft has resilience after bending, affect the straightening accuracy of transmission shaft. UTILITY MODEL CONTENTS

[0008] (I) the technical problem solved

[0009] In view of the deficiencies of prior art, the utility model provides a kind of transmission shaft straightening device, solve transmission shaft material's hardness is higher, leading to poor plasticity, in extrusion straightening process, the extrusion friction received easily leads to the surface of transmission shaft to produce damage, and extrusion straightening, transmission shaft has resilience after bending, affect the straightening accuracy of transmission shaft.

[0010] (II) technical scheme

[0011] To achieve the above object, the utility model is realized by the following technical schemes:

[0012] The utility model provides a kind of transmission shaft straightening device, including support frame and fixed ring, the side end of the support frame is slidably installed with two fixed blocks, the bottom end of each fixed block is fixedly installed with hydraulic rod, the bottom end of each hydraulic rod is fixedly installed with support plate, the end of each support plate is rotatably installed with ballast plate, the two side ends of each ballast plate are slidably installed with side plate, the inside of each side plate is fixedly installed with at least two heating rods.

[0013] Preferably: the top of each ballast plate is fixedly installed with base, the inner side wall of each ballast plate is fixedly installed with two buffer pads, the bottom end of each fixed block is fixedly installed with two connecting wires, the inside of the support frame is rotatably installed with drive rod, the side end of each side plate is rotatably installed with adjusting bolt, the side end of each side plate is fixedly installed with two guide rods, the side end of each side plate is rotatably installed with pull rod, and the side ends of two pull rods are slidably installed with the same auxiliary plate.

[0014] (Three) beneficial effects

[0015] 1, connect side plate by connecting wire, install multiple heating rods in the inside of side plate, two side plates are in close contact with the surface of transmission shaft, multiple heating rods are powered on by the way of interval resistance heating, heating rod is heated, transmission shaft is heated, the position of two fixed blocks is adjusted by the expansion and contraction of hydraulic rod, drive ballast plate to extrude and straighten transmission shaft, heating can reduce the strength of transmission shaft material, so that it is easier to deform plastically during extrusion and straightening, to ensure the accuracy of straightening.

[0016] 2, the position of two fixed blocks is adjusted by driving two fixed blocks to move reversely, pull rod is rotatable, auxiliary plate is in sliding connection with pull rod, and the surface of transmission shaft is pressed by two pull rods and auxiliary plate at the same time, to increase the stress area and reduce the surface friction damage of transmission shaft. ACCURACY OF DRAWINGS

[0017] The above description is only a summary of the technical scheme of the utility model, in order to more clearly understand the technical means of the utility model, and the content of the specification can be implemented, the following preferred embodiments of the utility model are described in detail with reference to the drawings.

[0018] Figure 1 It is the structure diagram of the support frame of the utility model;

[0019] Figure 2 It is the structure diagram of the fixed block of the utility model;

[0020] Figure 3 It is the structure diagram of the auxiliary plate of the utility model;

[0021] Figure 4 Figure 1 is a structural diagram of the ballast plate of the present application;

[0022] Figure 5 Figure 2 is a structural diagram of the side plate of the present application.

[0023] Legend: 11, support frame; 12, fixed block; 13, drive rod; 14, hydraulic rod; 15, fixed ring; 16, connecting line; 17, side plate; 18, ballast plate; 19, adjusting bolt; 21, pull rod; 22, auxiliary plate; 23, base; 24, support plate; 25, buffer pad; 26, heating rod; 27, guide rod. DETAILED DESCRIPTION

[0024] The embodiment of the present application provides a transmission shaft straightening device, effectively solves the problem that the hardness of the transmission shaft material is high, the plasticity is poor, the surface of the transmission shaft is easily damaged in the extrusion straightening process, and the transmission shaft has resilience after being extruded and straightened, and the straightening precision of the transmission shaft is affected, the side plates are connected through the connecting line, the plurality of heating rods are installed in the inside of the side plate, the surfaces of the two side plates are close to the transmission shaft, the plurality of heating rods are electrified, the heating rods are heated in the interval resistance heating mode, the transmission shaft is heated, the transmission shaft is extruded and straightened by the ballast plate through the extension and retraction of the hydraulic rod, the strength of the transmission shaft material is reduced through heating, the plastic deformation of the transmission shaft is more likely to occur in the extrusion straightening process, and the straightening precision is ensured.

[0025] EMBODIMENT

[0026] As shown in Figure 1 - Figure 5 The technical scheme in the embodiment of the present application effectively solves the technical problem that the hardness of the transmission shaft material is high, the plasticity is poor, the surface of the transmission shaft is easily damaged in the extrusion straightening process, and the transmission shaft has resilience after being extruded and straightened, and the straightening precision of the transmission shaft is affected, and the general idea is as follows:

[0027] In view of the problems in the prior art, the utility model provides a transmission shaft straightening device, including support frame 11 and fixed ring 15, the side end portion of support frame 11 is slidably installed with two fixed blocks 12, the bottom of each fixed block 12 is fixedly installed with hydraulic rod 14, the bottom of each hydraulic rod 14 is fixedly installed with support plate 24, the end of each support plate 24 is rotatably installed with ballast plate 18, the both side end portions of each ballast plate 18 are slidably installed with side plate 17, through drive motor, hydraulic rod 14 is at the bottom of fixed block 12, and hydraulic rod 14 drives support plate 24 to move down, makes ballast plate 18 drive side plate 17 and the bending point of transmission shaft adhere, because transmission shaft bending has camber, ballast plate 18 and the surface of transmission shaft adhere, the inside of each side plate 17 is fixedly installed with at least two heating rods 26, through the electrification of multiple heating rods 26, by the mode of interval resistance heating, makes heating rod 26 warm, heats transmission shaft, and through the telescopic of hydraulic rod 14, drive ballast plate 18 extrudes transmission shaft and straightens.

[0028] The top of each ballast plate 18 is fixedly installed with base 23, the inner side wall of each ballast plate 18 is fixedly installed with two buffer pads 25, the bottom of each fixed block 12 is fixedly installed with two connecting wires 16, the inside of support frame 11 is rotatably installed with drive rod 13, the side end portion of each side plate 17 is rotatably installed with adjusting bolt 19, the side end portion of each side plate 17 is fixedly installed with two guide rods 27, by rotating adjusting bolt 19, adjusting bolt 19 rotates at the side end portion of side plate 17, and rotating adjusting bolt 19 generates force to side plate 17, makes side plate 17 drive guide rod 27 to slide at the side end portion of ballast plate 18, adjusts the interval of two side plates 17, extrudes and corrects transmission shaft of different specifications, the side end portion of each side plate 17 is rotatably installed with pull rod 21, and the side end portion of two pull rods 21 is slidably installed with the same auxiliary plate 22.

[0029] Working principle:

[0030] First, through two fixed rings 15, the both ends of transmission shaft are clamped first, and the fixed ring 15 extrudes and fixes the both ends of transmission shaft, so that the bent part of transmission shaft is below the two ballast plates 18, and the motor is installed in the inside of support frame 11, by driving motor, the hydraulic rod 14 is telescopic at the bottom of fixed block 12, the hydraulic rod 14 drives support plate 24 to move down, makes ballast plate 18 drive side plate 17 and the bending point of transmission shaft adhere, because transmission shaft bending has camber, ballast plate 18 and the surface of transmission shaft adhere, ballast plate 18 drives base 23 to deflect at the end of support plate 24, makes the inside of ballast plate 18 and side plate 17 adhere to the bent transmission shaft, and ballast plate 18 drive buffer pad 25 extrudes transmission shaft.

[0031] Second, by installing two connecting lines 16 at the bottom end of the fixed block 12, the connecting line 16 is a telescopic mechanism, connecting the side plate 17, a plurality of heating rods 26 are installed inside the side plate 17, the two side plates 17 are tightly attached to the surface of the transmission shaft, the side plate 17 and the ballast plate 18 are made of heat-resistant material, by energizing the plurality of heating rods 26, by the way of interval resistance heating, the heating rod 26 is heated, the transmission shaft is heated, the hydraulic rod 14 is stretched and contracted, the ballast plate 18 is driven to extrude and straighten the transmission shaft, the heating can reduce the strength of the transmission shaft material, so that it is easier to deform plastically during extrusion and straightening, so as to achieve the purpose of straightening, the motor drives the driving rod 13 to rotate, the threads at both ends of the driving rod 13 are designed in opposite directions, driving the two fixed blocks 12 to move in opposite directions, adjusting the position of the two fixed blocks 12, the pull rod 21 is installed at the side end of the two side plates 17, the pull rod 21 can rotate, the auxiliary plate 22 is in sliding connection with the pull rod 21, at the same time, the two pull rods 21 drive the auxiliary plate 22 to adhere to and extrude the surface of the transmission shaft, increasing the stress area, by rotating the adjusting bolt 19, the adjusting bolt 19 is rotated at the side end of the side plate 17, the rotating adjusting bolt 19 generates force on the side plate 17, the side plate 17 drives the guide rod 27 to slide at the side end of the ballast plate 18, adjusting the distance between the two side plates 17, extruding and straightening the transmission shaft of different specifications.

[0032] Finally, it should be noted that: obviously, the above examples are only examples for clearly illustrating the utility model, and are not limited to the implementation. For ordinary skilled persons in the art, other different forms of changes or variations can be made on the basis of the above description. Here, it is not necessary and impossible to enumerate all the implementation modes. The obvious changes or variations derived therefrom are still within the protection scope of the utility model.

Claims

1. A drive shaft straightening device comprising a support frame (11) and a fixing ring (15), characterized in that, The side end of the support frame (11) is slidably provided with two fixed blocks (12), the bottom end of each fixed block (12) is fixedly provided with a hydraulic rod (14), the bottom end of each hydraulic rod (14) is fixedly provided with a support plate (24), the end of each support plate (24) is rotatably provided with a ballast plate (18), the two side ends of each ballast plate (18) are slidably provided with a side plate (17), and the inside of each side plate (17) is fixedly provided with at least two heating rods (26).

2. A drive shaft straightening device as claimed in claim 1, characterised in that The top end of each ballast plate (18) is fixedly provided with a base (23), and the inner side wall of each ballast plate (18) is fixedly provided with two buffer pads (25).

3. A drive shaft straightening device as claimed in claim 1, characterised in that The bottom end of each fixed block (12) is fixedly provided with two connecting wires (16).

4. A drive shaft straightening device as in claim 1, wherein, The inside of the support frame (11) is rotatably provided with a drive rod (13). Wherein, the two ends of the drive rod (13) are connected with the fixed blocks (12) respectively.

5. A drive shaft straightening device as in claim 1, wherein, The side end of each side plate (17) is rotatably provided with an adjusting bolt (19), and the side end of each side plate (17) is fixedly provided with two guide rods (27).

6. A drive shaft straightening device as in claim 1, wherein, The side end of each side plate (17) is rotatably provided with a pull rod (21), and the side ends of the two pull rods (21) are slidably provided with the same auxiliary plate (22).

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