Rotating frame

Abstract

According to the rotating frame, a gear piece and a box body in the rotating frame are of an integrated structure and have strength, and errors are easy to control when the gear piece and the box body are welded. The gear piece comprises a cylindrical part, an annular part and a gear part which are coaxial and sequentially connected, the peripheral wall of the cylindrical part is in a prism shape, two adjacent side faces of the cylindrical part are in smooth transition, the outer diameter of the annular part is larger than that of the cylindrical part, one side face of the cylindrical part abuts against the end face of the connecting end of the box body in an attached mode, and the other side face of the cylindrical part abuts against the gear part. One end of the annular part abuts against the limiting face of the limiting part in the box body, the two sides of the limiting face are connected with the end face and the groove face in the limiting part respectively, rapid positioning of the gear piece and the box body can be achieved, and precision can be improved easily. And the outer wall of the box body is welded to the cylindrical part, the arc-shaped welding seam is filled between the groove face in the limiting part and the peripheral wall of the annular part, and the overall strength is improved. While the strength is improved, the precision can be effectively controlled, and the technical problem that the machining precision of the rotating frame is effectively guaranteed while the strength of the rotating frame is difficult to improve is solved to a certain extent.

Description

Technical Field

[0001] The present application belongs to the technical field of vehicle rotating frames, and in particular, relates to a rotating frame. Background Art

[0002] The rotating frame is an important part of the suspension system of special vehicles, responsible for steering and supporting functions. One end of the rotating frame is installed on the frame, and the other end is fixedly connected to the suspension swing arm. The upper fulcrum of the suspension lifting cylinder is installed on the rotating frame, and the steering of the suspension lifting cylinder relative to the rotating frame is achieved through the cooperation of the worm or rack and gear. The rotating frame in the heavy-load system must not only realize the steering function of the suspension, but also bear the suspension load, which requires a high strength of the structure.

[0003] At present, the rotating frame includes plate-like parts and gear parts. The plate-like parts are connected to the gear parts through clamps or pliers through welds, and the plate-like parts are also connected to each other through welds. However, the processing accuracy of this rotating frame is difficult to ensure and the strength is not ideal. It is difficult to apply to vehicles with high load requirements. It is difficult to improve the strength of the rotating frame while effectively ensuring the processing accuracy of the rotating frame. Utility Model Content

[0004] The present application aims to at least to some extent solve the technical problem of difficulty in improving the strength of a rotating frame while effectively ensuring the processing accuracy of the rotating frame. To this end, the present application provides a rotating frame.

[0005] The embodiment of the present application provides a rotating frame, comprising an integrated gear member and an integrated box body,

[0006] The gear member comprises a cylindrical portion, an annular portion and a gear portion which are coaxial and connected in sequence, the outer peripheral wall of the cylindrical portion is prismatic and two adjacent side surfaces are smoothly transitioned, and the outer diameter of the annular portion is greater than the outer diameter of the cylindrical portion;

[0007] The box body is provided with a connecting end and a limiting portion, the end face of the connecting end is fitted and abutted against one of the side faces, and the outer wall of the box body is connected to the cylindrical portion via a straight weld, the limiting portion comprises a groove surface and limiting surfaces on both sides respectively connected to the groove surface and the end face, an arc-shaped weld is filled between the groove surface and the outer peripheral wall of the annular portion, and the limiting surface abuts against one end of the annular portion.

[0008] In some or certain embodiments, the side surface and the end surface are both machined surfaces, and the flatness of the end surface and the side surface is 0.3-0.5.

[0009] In some or certain embodiments, the grooves corresponding to the straight welds are all J-shaped grooves, and the bottom of the J-shaped groove is arc-shaped.

[0010] In some or certain embodiments, a reinforcing weld is connected between the inner wall of the box body and the cylindrical portion.

[0011] In some or certain embodiments, two adjacent side surfaces are transitioned through an arc surface, and the straight weld is filled between the arc surface and the outer wall of the box body.

[0012] In some or certain embodiments, along the extension direction of the arc weld, the cross-sectional area of ​​the arc weld is the same at each location.

[0013] In some or certain embodiments, an outer diameter of the gear portion is smaller than an outer diameter of the annular portion, and the gear portion transitions to the annular portion through an annular step.

[0014] In some or certain embodiments, the inner diameter of the annular portion is smaller than the maximum inner diameter of the gear portion and the maximum inner diameter of the cylindrical portion, and the inner peripheral wall of the cylindrical portion forms a stepped hole.

[0015] In some or certain embodiments, the box body comprises:

[0016] The cover plate is provided with a bend in the extension direction, and the limiting portion is provided at one end of the cover plate;

[0017] Two webs, respectively fixedly connected to two sides of the cover plate, and one end of which is flush with one end of the cover plate to form the connection end;

[0018] A sealing plate, fixedly connected to the cover plate and the other ends of the two webs;

[0019] The support plate is fixedly connected to the cover plate, the web plate and the sealing plate.

[0020] In some or certain embodiments, the cover plate is divided into a mounting section and a reinforcement section with the bend as a node, and two ends of the support plate are fixedly connected to the reinforcement section and the sealing plate respectively.

[0021] Advantageous effects provided by one or more embodiments of the present application:

[0022] The gear part and the box body in the rotating frame are both integrated structures, which can transfer the precision control in the rotating frame to the connection between the gear part and the box body. The connection process of the gear part and the box body requires fewer steps, and the precision difference is also easy to control, which is beneficial to improving the precision of the rotating frame. The gear part in the rotating frame includes a cylindrical part, an annular part and a gear part that are coaxial and connected in sequence. The outer peripheral wall of the cylindrical part is prismatic and the two adjacent side surfaces are smoothly transitioned. The outer diameter of the annular part is larger than the outer diameter of the cylindrical part. One side of the cylindrical part can be fitted and abutted with the end face of the connecting end of the box body. The outer diameter of the annular part is larger than the outer diameter of the coaxial cylindrical part, and the annular part protrudes relative to the cylindrical part. One end of the annular part can abut against the limiting surface of the limiting part in the box body. The two sides of the limiting surface are respectively connected to the end face and the groove surface in the limiting part. The annular part of the gear part cooperates with the connecting end and the limiting part of the box body to achieve fast and relatively accurate positioning between the gear part and the box body, which is also beneficial to improving the connection precision of the gear part and the box body, and improving the preparation efficiency of the rotating frame. On the basis that the box body and the gear part are an integrated structure with a certain strength, the outer wall of the box body is connected to the cylindrical part through a straight weld, and the groove surface in the limiting part of the box body and the outer peripheral wall of the annular part can be filled with an arc weld. The different parts of the gear part and the box body are welded and formed, which can effectively improve the welding strength between the box body and the gear part to improve the overall strength of the rotating frame. The cylindrical part, the annular part and the gear part in the gear part are all provided with through holes, which can be used for connection with related structures. While the overall strength of the rotating frame is improved through welding, the overall accuracy of the rotating frame is also good and easy to control, which solves the technical problem of difficulty in improving the strength of the rotating frame while effectively ensuring the processing accuracy of the rotating frame to a certain extent. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following is a brief introduction to the drawings required for use in the description of the embodiments. Obviously, the drawings described below are some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0024] Figure 1 A schematic structural diagram of a rotating frame in some embodiments or certain embodiments of the present application is shown.

[0025] Figure 2 A cross-sectional view of a rotating frame in some embodiments or certain embodiments of the present application is shown.

[0026] Figure 3 Shows Figure 2 AA section view.

[0027] Figure 4 A schematic structural diagram of a box body in some embodiments or certain embodiments of the present application is shown.

[0028] Explanation of the accompanying drawings: 1. gear part; 11. cylindrical portion; 111. side surface; 112. arc surface; 12. annular portion; 13. gear portion; 2. box body; 21. connecting end; 211. end surface; 22. limiting portion; 221. limiting surface; 222. groove surface; 23. cover plate; 231. mounting section; 232. reinforcement section; 24. web plate; 25. sealing plate; 26. support plate; 3. arc weld; 4. straight weld; 5. reinforcement weld. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0030] It should be noted that all directional indications in the embodiments of the present invention are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture. If the specific posture changes, the directional indication will also change accordingly.

[0031] In the present invention, unless otherwise clearly specified and limited, the terms "connection", "fixation", etc. should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; 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.

[0032] In addition, in the present utility model, descriptions such as "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in the field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present utility model.

[0033] The present application will be described below with reference to the accompanying drawings:

[0034] Figure 1A schematic diagram of the structure of a rotating frame in some embodiments or certain embodiments of the present application is shown. Figure 2 A cross-sectional view of a rotating frame in some embodiments or certain embodiments of the present application is shown, Figure 3 Shows Figure 2 Middle AA section view, combined with Figure 1 to Figure 3 An embodiment of the present application provides a rotating frame, including a gear member 1 of an integrated structure and a box body 2 of an integrated structure.

[0035] The gear member 1 comprises a cylindrical portion 11 , an annular portion 12 and a gear portion 13 which are coaxial and connected in sequence. The outer peripheral wall of the cylindrical portion 11 is prismatic and two adjacent side surfaces 111 are smoothly transitioned. The outer diameter of the annular portion 12 is greater than that of the cylindrical portion 11 .

[0036] The box body 2 is provided with a connecting end 21 and a limiting portion 22. The end face 211 of the connecting end 21 is fitted and abutted against a side face 111, and the outer wall of the box body 2 is connected to the cylindrical portion 11 through a straight weld 4. The limiting portion 22 includes a groove surface 222 and limiting surfaces 221 on both sides respectively connected to the groove surface 222 and the end face 211. An arc weld 3 is filled between the groove surface 222 and the outer peripheral wall of the annular portion 12, and the limiting surface 221 abuts against one end of the annular portion 12.

[0037] The gear member 1 and the box body 2 in the rotating frame are both integrated structures, which can transfer the precision control in the rotating frame to the connection between the gear member 1 and the box body 2. The connection process between the gear member 1 and the box body 2 requires fewer steps, and the precision difference is easy to control, which is beneficial to improving the precision of the rotating frame. The gear member 1 in the rotating frame includes a cylindrical portion 11, an annular portion 12 and a gear portion 13 that are coaxial and connected in sequence. The outer peripheral wall of the cylindrical portion 11 is prismatic and the two adjacent side surfaces 111 are smoothly transitioned. The outer diameter of the annular portion 12 is larger than the outer diameter of the cylindrical portion 11. One side surface 111 of the cylindrical portion 11 can fit and abut against the end surface 211 of the connecting end 21 of the box body 2. The outer diameter of the annular portion 12 is larger than the outer diameter of the coaxial cylindrical portion 11, so the annular portion 12 protrudes relative to the cylindrical portion 11. One end of the annular portion 12 can abut against the limiting surface 221 of the limiting portion 22 in the box body 2. The two sides of the limiting surface 221 are respectively connected to the end 21 surface and the groove surface 222 in the limiting portion 22. The annular portion 12 of the gear member 1 cooperates with the connecting end 21 and the limiting portion 22 of the box body 2, which can realize fast and relatively accurate positioning between the gear member 1 and the box body 2, and is also beneficial to improving the connection accuracy of the gear member 1 and the box body 2, and improving the preparation efficiency of the rotating frame. On the basis that the box body 2 and the gear part 1 are an integrated structure with a certain strength, the outer wall of the box body 2 is connected to the cylindrical part 11 through a straight weld 4, and the groove surface 222 in the limiting part 22 of the box body 2 and the outer peripheral wall of the annular part 12 can be filled with an arc weld 3. The different parts of the gear part 1 and the box body 2 are welded and formed, which can effectively improve the welding strength between the box body 2 and the gear part 1 to improve the overall strength of the rotating frame. The cylindrical part 11, the annular part 12 and the gear part 13 in the gear part 1 are all provided with through holes, which can be used for connection with related structures. While the overall strength of the rotating frame is improved by welding, the overall precision of the rotating frame is also good and easy to control, which solves the technical problem of difficulty in improving the strength of the rotating frame while effectively ensuring the processing precision of the rotating frame to a certain extent.

[0038] Furthermore, the box body 2 and the gear part 1 in the rotating frame are respectively an integrated structure. During the preparation of the rotating frame, the gear part 1 or the box body 2 can be replaced and adjusted separately, which reduces the possibility of the rotating frame being scrapped during the preparation of the rotating frame as a whole and reduces resource waste. The rapid positioning between the box body 2 and the gear part 1 can also reduce the steps required for welding the box body 2 and the gear part 1, thereby improving the preparation efficiency of the rotating frame. The abutment between the annular portion 12 and the box body 2 is also conducive to improving the overall processing strength of the rotating frame.

[0039] In some or certain embodiments, the gear part 1 of the integrated structure can be obtained by machining, and the box body 2 of the integrated structure can be obtained by welding. The gear part 1 obtained by machining has high precision, high processing efficiency, and good strength, and the box body 2 of the integrated structure obtained by welding also has high strength. According to the required specifications, the maximum load of the rotating frame obtained in the present application can be increased by 6t compared with the maximum load of the rotating frame in the related art, and the maximum load of some rotating frames can reach 30t.

[0040] It should be noted that Figure 1 The arc weld 3 and the straight weld 4 are omitted. The gear part 1 is relatively close to the rotary structure as a whole, and can be obtained by adjusting the program and tool of the machine tool. The gear part 1 can also be prepared by additive manufacturing or casting, and the box body 2 can also be prepared by additive manufacturing, and the overall strength of the rotating frame can also be improved to a certain extent.

[0041] In some or certain embodiments, the side surface 111 and the end surface 211 are both machined surfaces, and the flatness of the end surface 211 and the side surface 111 is 0.3-0.5.

[0042] The side surface 111 and the end surface 211 are both machined surfaces, and the flatness of the end surface 211 and the side surface 111 is within the above range, which can effectively improve the fit between the gear part 1 and the box body 2, and enable the gear part 1 and the box body 2 to be quickly positioned, which is also beneficial to improving the processing accuracy of the final rotating frame.

[0043] In some or certain embodiments, the roughness of the end surface 211 and the side surface 111 may be 6.3.

[0044] In some or certain embodiments, the limiting surface 221 and the groove surface 222 in the limiting portion 22 of the box body 2 can also be machined, which is also beneficial to improve the connection accuracy between the gear member 1 and the box body 2, so as to improve the machining accuracy of the final rotating frame.

[0045] In some or certain embodiments, the grooves corresponding to the straight welds 4 are all J-shaped grooves, and the bottom of the J-shaped grooves is arc-shaped, which can increase the root width of the straight welds 4 and the accessibility of the welding gun, ensure that the straight welds 4 are fully penetrated, and increase the corresponding connection strength at the straight welds 4, so as to improve the overall strength and load-bearing capacity of the rotating frame.

[0046] In some or certain embodiments, a reinforcing weld 5 is further connected between the inner wall of the box body 2 and the cylindrical portion 11, which can improve the connection strength between the box body 2 and the gear member 1, and effectively improve the strength of the rotating frame.

[0047] In some or certain embodiments, two adjacent side surfaces 111 are transitioned through an arc surface 112, and the straight weld 4 is filled between the arc surface 112 and the outer wall of the box body 2. The arc surface 112 can also be used as a reference, and the arc surface 112 is also convenient for welding and increases the contact area with the weld, which is beneficial to improving welding strength and welding efficiency.

[0048] In some or certain embodiments, two sides of the arc surface 112 may be tangentially connected to the two side surfaces 111 respectively, or may be non-tangentially connected according to preparation requirements.

[0049] It should be noted that the peripheral wall and the outer diameter mentioned in the present application are the larger diameter surface of the structure with holes and the corresponding diameter, and the inner diameter can be the aperture of the structure with holes. The inner wall and the outer wall of the box body 2 are the surfaces corresponding to the internal space of the box body 2, and the outer wall is the surface opposite to the inner wall.

[0050] In some or certain embodiments, along the extension direction of the arc weld 3, the cross-sectional area of ​​each part of the arc weld 3 is the same, which is beneficial to improve the welding quality and strength.

[0051] In some or certain embodiments, the outer peripheral wall of the cylindrical portion 11 may be a regular quadrangular prism for ease of processing and positioning, or may be set to other regular pentagonal prism shapes according to requirements.

[0052] In some or certain embodiments, the outer diameter of the gear portion 13 is smaller than the outer diameter of the annular portion 12, and the gear portion 13 transitions to the annular portion 12 via an annular step. This structure can reduce the possibility of interference between the gear portion 13 and its mating structure and the annular portion 12, etc., and can ensure the overall strength of the gear member 1.

[0053] In some or certain embodiments, the inner diameter of the annular portion 12 is smaller than the maximum inner diameter of the gear portion 13 and the maximum inner diameter of the cylindrical portion 11, and a stepped hole is formed on the inner peripheral wall of the cylindrical portion 11. This can facilitate the assembly and positioning of the relevant shafts and reduce the assembly time. The relevant shafts can be frame shafts, etc.

[0054] Figure 4 FIG. 1 shows a schematic diagram of the structure of a box body in some embodiments or certain embodiments of the present application, with reference to FIG. Figure 4 In some or certain embodiments, the box body 2 includes:

[0055] The cover plate 23 is provided with a bend in the extending direction, and the limiting portion 22 is provided at one end of the cover plate 23 .

[0056] The two webs 24 are fixedly connected to two sides of the cover plate 23 , respectively, and one end of the two webs 24 is flush with one end of the cover plate 23 to form a connecting end 21 .

[0057] The sealing plate 25 is fixedly connected to the cover plate 23 and the other ends of the two web plates 24 .

[0058] The support plate 26 is fixedly connected to the cover plate 23 , the web plate 24 and the sealing plate 25 .

[0059] The box body 2 adopts the above structure, and the strength of the box body 2 is relatively high, which is beneficial to improving the overall strength of the rotating frame.

[0060] In some or certain embodiments, the limiting portion 22 can be obtained by machining one end of the cover plate 23 to improve the overall accuracy.

[0061] In some or certain embodiments, the cover plate 23 is divided into a mounting section 231 and a reinforcement section 232 with the bend as a node, and the two ends of the support plate 26 are respectively fixedly connected to the reinforcement section 232 and the sealing plate 25. Preparation and positioning are relatively easy, and a single plate-like structure can be obtained by machining, so preparation is relatively easy and the overall precision is also high.

[0062] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. 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. In addition, those skilled in the art may combine and combine different embodiments or examples described in this specification.

[0063] In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the fact that they can be implemented by ordinary technicians in this field. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by this application.

[0064] Although the embodiments of the present application have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present application, and that the scope of the present application is defined by the claims and their equivalents.

Claims

1. A rotating frame, characterized in that: It includes an integrated gear part and an integrated box body. The gear member comprises a cylindrical portion, an annular portion and a gear portion which are coaxial and connected in sequence, the outer peripheral wall of the cylindrical portion is prismatic and two adjacent side surfaces are smoothly transitioned, and the outer diameter of the annular portion is greater than the outer diameter of the cylindrical portion; The box body is provided with a connecting end and a limiting portion, the end face of the connecting end is fitted and abutted against one of the side faces, and the outer wall of the box body is connected to the cylindrical portion via a straight weld, the limiting portion comprises a groove surface and limiting surfaces on both sides respectively connected to the groove surface and the end face, an arc-shaped weld is filled between the groove surface and the outer peripheral wall of the annular portion, and the limiting surface abuts against one end of the annular portion.

2. The rotating frame according to claim 1, characterized in that: The side surface and the end surface are both machined surfaces, and the flatness of the end surface and the side surface is 0.3-0.

5.

3. The rotating frame according to claim 1, characterized in that: The grooves corresponding to the straight welds are all J-shaped grooves, and the bottom of the J-shaped groove is arc-shaped.

4. The rotating frame according to any one of claims 1 to 3, characterized in that: A reinforcing weld is also connected between the inner wall of the box body and the cylindrical portion.

5. The rotating frame according to any one of claims 1 to 3, characterized in that: The two adjacent side surfaces are transitioned through an arc surface, and the straight weld is filled between the arc surface and the outer wall of the box body.

6. The rotating frame according to any one of claims 1 to 3, characterized in that: Along the extending direction of the arc weld, the cross-sectional area of ​​each arc weld is the same.

7. The rotating frame according to any one of claims 1 to 3, characterized in that: The outer diameter of the gear portion is smaller than the outer diameter of the annular portion, and the gear portion transitions to the annular portion through an annular step.

8. The rotating frame according to any one of claims 1 to 3, characterized in that: The inner diameter of the annular portion is smaller than the maximum inner diameter of the gear portion and the maximum inner diameter of the cylindrical portion, and the inner peripheral wall of the cylindrical portion forms a stepped hole.

9. The rotating frame according to any one of claims 1 to 3, characterized in that: The box body comprises: The cover plate is provided with a bend in the extension direction, and the limiting portion is provided at one end of the cover plate; Two webs, respectively fixedly connected to two sides of the cover plate, and one end of which is flush with one end of the cover plate to form the connection end; A sealing plate, fixedly connected to the cover plate and the other ends of the two webs; The support plate is fixedly connected to the cover plate, the web plate and the sealing plate.

10. The rotating frame according to claim 9, characterized in that: The cover plate is divided into a mounting section and a reinforcement section with the bend as a node, and two ends of the support plate are fixedly connected to the reinforcement section and the sealing plate respectively.

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