Transmission shaft welding supporting bracket

Abstract

The utility model discloses a transmission shaft welding support bracket, which comprises an external bracket and a plurality of groups of internal support frames, the internal support frames are arranged in the external bracket, and a transmission shaft is supported and fixed on the internal support frames; the external bracket comprises a bottom plate, and protection plates are connected to the two sides of the bottom plate; the inner supporting frame comprises a supporting stand column, a supporting plate is connected to the top of the supporting stand column, a fixing ring is further arranged in the supporting plate, a plurality of springs are connected between the fixing ring and the supporting plate, the springs are installed on the inner side of the supporting plate, screw holes are formed in the positions, corresponding to the middles of the springs, of the supporting plate, fastening bolts are arranged in the screw holes, and the fixing ring is connected with the fixing ring. The fastening bolt is in rotary contact with the outer wall of the fixing ring; the protective plates are arranged on the two sides of the bottom plate, so that sparks are prevented from splashing in the welding process of the transmission shaft; a fixing ring is arranged in the supporting plate, and the supporting plate is screwed through a fastening bolt to reach the outer side of the fixing ring till an internal workpiece is extruded, and fixing is achieved.

Description

Technical Field

[0001] The utility model relates to a transmission shaft welding support bracket. Background Art

[0002] Drive shaft welding is a method of connecting different parts of a drive shaft together through a welding process. The drive shaft is usually used to transmit power from the engine to the driving wheels of a vehicle or to the working parts of a mechanical device. In the process of drive shaft welding, the key is to ensure the quality and strength of the welded joint to meet the load and vibration requirements of the drive shaft during operation. Therefore, before carrying out drive shaft welding, strict welding process specifications and control of welding operations are required to ensure that the welding quality meets the design and safety requirements.

[0003] At present, the welding of transmission shafts is mostly carried out by automatic welding machines. First, the transmission shaft is placed on the bracket, and the clamp is used to position it axially. The position of the dial indicator on the crossbeam slide is adjusted. The bracket support height is adjusted by reading the dial indicator jump to meet the alignment requirements. The welding gun travel mechanism is started, the welding gun is moved to the welding position, the welding gun posture and the distance between the welding gun and the weld are adjusted, the welding parameters are set, and the automatic welding button is started. The workpiece starts to rotate, the welding gun automatically falls, the arc is delayed, and multi-layer welding is completed. During this welding process, the bracket mainly supports, lifts and guides the welding workpiece. During the welding process, the rigidity and constraint of the welding bracket may cause the workpiece to be restricted in movement during the welding process, thereby causing welding deformation. Welding deformation may cause changes in the size, shape and geometric measurements of the workpiece, affecting the quality and performance of the final product. In addition, the device for fixing the workpiece on the welding bracket is usually highly constrained and not easy to adjust. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide a transmission shaft welding support bracket for stabilizing the welding process of the transmission shaft.

[0005] Based on the technical problems existing in the background technology, the utility model proposes a transmission shaft welding support bracket, including an external bracket and an internal support bracket, wherein the internal support bracket is provided with multiple groups and is installed in the external bracket, and the internal support bracket supports and fixes the transmission shaft;

[0006] The external bracket includes a bottom plate, and protective plates are connected to both sides of the bottom plate;

[0007] The internal support frame includes a supporting column, a support plate is connected to the top of the supporting column, a fixing ring is also provided inside the support plate, a plurality of springs are connected between the fixing ring and the support plate, the springs are installed on the inner side of the support plate, a screw hole is provided on the support plate corresponding to the middle of the spring, a fastening bolt is provided in the screw hole, and the fastening bolt rotates to contact the outer wall of the fixing ring.

[0008] Preferably, the support plate has a semicircular structure, and the arc angle of the fixing ring is greater than the arc angle of the support plate. The support plate and the fixing ring are concentrically arranged, and the width of the fixing ring is not less than the width of the support plate.

[0009] Preferably, the length of the fastening bolt should be at least greater than the sum of the thickness of the support plate and the distance between the support plate and the fixing ring, and connecting plane 1 and connecting plane 2 are respectively provided on the inner wall of the support plate and the outer wall of the fixing ring, and connecting plane 1 and connecting plane 2 respectively connect the two ends of the spring.

[0010] Preferably, the middle portion of the protective plate protrudes outward, dividing the protective plate into two parts, and the protective plate is arranged at an obtuse angle, and the overall height of the protective plate should at least exceed the height of the internal support frame.

[0011] Preferably, the bottom side surfaces of the support columns are provided with reinforcing ribs, and one side of the plurality of reinforcing ribs is connected to the support columns, and the other side is connected to the bottom plate.

[0012] Preferably, each group of internal support frames are evenly spaced apart, have the same size, and are arranged on the same straight line.

[0013] Preferably, the fixing ring is a spring steel sheet.

[0014] Compared with the prior art, the transmission shaft welding support bracket proposed by the utility model adopts the above technical solution and achieves the following technical effects:

[0015] 1. The utility model provides protective plates on both sides of the bottom plate, and the protective plates are bent, which can prevent sparks from splashing during the welding process of the transmission shaft and reduce work hazards;

[0016] 2. The utility model arranges a fixing ring in the support plate, places the workpiece to be welded in the fixing ring, tightens the fixing bolts arranged in the support plate, and reaches the outside of the fixing ring until the internal workpiece is squeezed to achieve fixation. The internal fastening of the fixing ring is provided by the outer fastening bolts, so that the constraint on the workpiece is variable, reducing the possibility of welding deformation. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 The overall three-dimensional structure of the utility model is shown in FIG. Figure 1 ;

[0018] Figure 2 The overall three-dimensional structure of the utility model is shown in FIG. Figure 2 ;

[0019] Figure 3 This is a schematic diagram of the overall structure of the internal support frame of the utility model;

[0020] Figure 4 The internal support frame split structure of the utility model is shown in FIG. Figure 1 ;

[0021] Figure 5 The internal support frame split structure of the utility model is shown in FIG. Figure 2 .

[0022] In the figure: 1. External bracket; 11. Bottom plate; 12. Protective plate; 2. Internal support frame; 21. Support column; 22. Support plate; 23. Fixing ring; 24. Spring; 25. Screw hole; 26. Fastening bolt; 27. Connection plane 1; 28. Connection plane 2; 29. ​​Reinforcement rib; 3. Transmission shaft. DETAILED DESCRIPTION

[0023] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection, an electrical connection, or communication with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0024] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0025] Reference Figure 1-5 The utility model proposes a transmission shaft welding support bracket, comprising an external bracket 1 and an internal support bracket 2, wherein the internal support bracket 2 is provided with multiple groups and is installed in the external bracket 1, and the internal support bracket 2 supports and fixes the transmission shaft 3;

[0026] Specifically, the external bracket 1 includes a bottom plate 11, and protective plates 12 are connected to both sides of the bottom plate 11;

[0027] In this embodiment, the external bracket 1 mainly protects the internal support frame 2 and the transmission shaft 3 fixed thereon. The internal support frame 2 and the transmission shaft 3 fixed thereon are protected by the external protective plate 12. On the one hand, external factors are prevented from interfering with the internal welding work. On the other hand, internal welding sparks can be prevented from splashing out and causing safety accidents.

[0028] Reference Figure 3-5 The internal support frame 2 includes a support column 21, a support plate 22 is connected to the top of the support column 21, a fixing ring 23 is also provided inside the support plate 22, a plurality of springs 24 are connected between the fixing ring 23 and the support plate 22, the spring 24 is installed on the inner side of the support plate 22, a screw hole 25 is provided on the support plate 22 corresponding to the middle of the spring 24, a fastening bolt 26 is provided in the screw hole 25, and the fastening bolt 26 rotates to contact the outer wall of the fixing ring 23.

[0029] Specifically, the support plate 22 has a semicircular structure, and the arc angle of the fixing ring 23 is greater than the arc angle of the support plate 22 . The support plate 22 and the fixing ring 23 are concentrically arranged, and the width of the fixing ring 23 is not less than the width of the support plate 22 .

[0030] Specifically, the length of the fastening bolt 26 should be at least greater than the sum of the thickness of the support plate 22 and the distance between the support plate 22 and the fixing ring 23, and a connecting plane 1 27 and a connecting plane 28 are respectively provided on the inner wall of the support plate 22 and the outer wall of the fixing ring 23, and the connecting plane 1 27 and the connecting plane 2 28 are respectively connected to the two ends of the spring 24.

[0031] In this embodiment, the internal support frame 2 is fixed to the base plate 11 by means of the support column 21, and the base is reinforced by means of the reinforcing ribs 29 to ensure the stability of the welding process. The support plate 22 arranged on the top of the support column 21 is the second support, and the first support is the built-in fixing ring 23. The transmission shaft 3 first contacts the inside of the fixing ring 23. At this time, the fastening bolts 26 arranged on the support plate 22 are tightened and pressed against the connecting plane 28 arranged on the outer wall of the fixing ring 23, so that the fixing ring 23 is pressed and contracted inwardly until the internally fixed transmission shaft 3 is pressed, thereby fixing the transmission shaft 3. At this time, the fixed state is reached, and the internal constraint on the transmission shaft 3 can be adjusted by adjusting the tightness of the fastening bolts 26 on the outer wall of the fixing ring 23, thereby avoiding welding deformation.

[0032] Reference Figure 1-2 The middle part of the protective plate 12 protrudes outward, dividing the protective plate 12 into two parts, and is set at an obtuse angle. The overall height of the protective plate 12 should at least exceed the height of the internal support frame 2.

[0033] Specifically, reinforcing ribs 27 are provided on the bottom side surfaces of the supporting columns 21 . One side of the plurality of reinforcing ribs 27 is connected to the supporting columns 21 , and the other side is connected to the bottom plate 11 .

[0034] Specifically, each group of internal support frames 2 are evenly spaced apart, have the same size, and are arranged on the same straight line.

[0035] Specifically, the fixing ring 23 is a spring steel sheet.

[0036] In this embodiment, the fixing ring 23 is set as a spring steel sheet mainly because it has good elasticity, does not cause plastic deformation when subjected to high loads, still has a long service life under repeated actions, and has sufficient toughness and plasticity to ensure the stability of the internal workpiece.

[0037] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A transmission shaft welding support bracket, characterized in that: It comprises an external bracket (1) and an internal support frame (2), wherein the internal support frame (2) is provided with a plurality of groups and is installed in the external bracket (1), and the internal support frame (2) supports and fixes a transmission shaft (3); The external bracket (1) comprises a bottom plate (11), and protective plates (12) are connected to both sides of the bottom plate (11); The internal support frame (2) comprises a support column (21), the top of the support column (21) is connected to a support plate (22), a fixing ring (23) is provided inside the support plate (22), a plurality of springs (24) are connected between the fixing ring (23) and the support plate (22), the springs (24) are mounted on the inner side of the support plate (22), a screw hole (25) is provided on the support plate (22) corresponding to the middle of the spring (24), a fastening bolt (26) is provided in the screw hole (25), and the fastening bolt (26) is rotatably contacted with the outer wall of the fixing ring (23).

2. A transmission shaft welding support bracket according to claim 1, characterized in that: The support plate (22) has a semicircular structure, and the arc angle of the fixing ring (23) is greater than the arc angle of the support plate (22). The support plate (22) and the fixing ring (23) are arranged concentrically, and the width of the fixing ring (23) is not less than the width of the support plate (22).

3. The transmission shaft welding support bracket according to claim 1, characterized in that: The length of the fastening bolt (26) should be at least greater than the sum of the thickness of the support plate (22) and the distance between the support plate (22) and the fixing ring (23), and a connecting plane 1 (27) and a connecting plane 2 (28) are respectively provided on the inner wall of the support plate (22) and the outer wall of the fixing ring (23), and the connecting plane 1 (27) and the connecting plane 2 (28) are respectively connected to the two ends of the spring (24).

4. The transmission shaft welding support bracket according to claim 1, characterized in that: The middle part of the protective plate (12) protrudes outwards, dividing the protective plate (12) into two parts, which are arranged at an obtuse angle. The overall height of the protective plate (12) should at least exceed the height of the internal support frame (2).

5. The transmission shaft welding support bracket according to claim 1, characterized in that: The bottom side surfaces of the support columns (21) are each provided with reinforcing ribs (29); one side of the plurality of reinforcing ribs (29) is connected to the support columns (21) and the other side is connected to the bottom plate (11).

6. The transmission shaft welding support bracket according to claim 1, characterized in that: Each group of internal support frames (2) are evenly spaced and have the same size and are arranged on the same straight line.

7. The transmission shaft welding support bracket according to claim 1, characterized in that: The fixing ring (23) is a spring steel sheet.

Images