Combined flange structure

Abstract

The utility model discloses a combined type flange structure which comprises a flange base, a flange middle section and a flange end head which are sequentially connected from front to back, a threaded hole and a first pin hole are formed in the rear end of the flange base, a threaded through hole is formed in the flange middle section, and second pin holes are formed in the front end and the rear end of the flange middle section. A third pin hole and a fixing bolt through hole penetrating through the flange end are machined in the front end of the flange end, the threaded through hole, the fixing bolt through hole and the threaded hole are coaxially arranged and connected through a fixing bolt, the second pin hole, the third pin hole and the first pin hole are coaxially arranged and connected through a fixing pin, and the flange middle section is sleeved with a flange dustproof cap. The flange end comprises a flange end main body, the flange end main body can be flange ends of different structures, the combined flange structure, the axial length and the flange end can be selected, the matching efficiency is improved, the development cost is reduced, the adaptability is improved, the flange dustproof cap prevents external impurities from damaging the oil quality of a gearbox, and the risk rate is reduced.

Description

TECHNICAL FIELD

[0001] The utility model belongs to mechanical connecting part technical field relates to a flange structure, concretely relates to a combined flange structure. BACKGROUND

[0002] The flange plate is the key connecting part of the whole vehicle, engine and transmission, and bears the functions of torque and power transmission, synchronous speed and fixing and limiting, but at present, the transmission models matched by different host factories are different, and the flange plates used for connecting are also different in standard and model, which leads to the situation that when the same transmission is matched with engines of different host factories, the flange plate needs to be separately developed and designed due to the non-corresponding interface, and when the structure type of the flange plate needs to be changed to match the host factory, the development task is increased, the development time is prolonged, and the sales cycle of the transmission is seriously affected.

[0003] At present, the flange plates widely used in the market are two kinds, one is the flange plate produced based on SAE-J2301 standard, commonly known as C-type flange, as shown in Figure 1 ; the other is the flange plate produced based on ISO-8667 standard, commonly known as T-type flange, as shown in Figure 2 ; the end mechanical structures of the two kinds of flange plates connected with the transmission are quite different, so when the transmission is matched with the two kinds of flange plates, two different corresponding flange plate structures need to be developed simultaneously, which increases the development cost of application matching. SUMMARY

[0004] In view of the deficiencies in the prior art, the utility model aims at providing a combined flange structure, which can solve the technical problem of increased development cost when the existing transmission and engine connecting flange do not match.

[0005] In order to solve the above technical problems, the utility model adopts the following technical scheme to realize it:

[0006] A combined flange structure, comprising a flange base, a flange middle section and a flange end head, the front end of the flange base is connected with the transmission, the rear end of the flange base is connected with the front end of the flange middle section, and the rear end of the flange middle section is connected with the front end of the flange end head.

[0007] The flange base comprises a cylindrical base body, an annular base connecting plate and a plug-in boss, the base body, the base connecting plate and the plug-in boss are coaxially and integrally arranged, the inner diameters of the base body and the base connecting plate are the same, the inner walls of the base body and the base connecting plate are processed with spline communication, the inner wall of the plug-in boss is processed with a sealing ring mounting groove, and a sealing ring is mounted in the sealing ring mounting groove.

[0008] A first annular groove is arranged on the rear end face of the base connecting plate, the first annular groove is coaxially arranged with the base connecting plate, a pair of symmetrically arranged threaded holes and two pairs of symmetrically arranged first pin holes are arranged on the rear end face of the base connecting plate outside the first annular groove.

[0009] The flange middle section comprises a cylindrical middle section body, a first plug-in convex ring matched with the first annular groove is integrally processed on the front end of the middle section body, a plug-in recess is arranged on the inner side of the rear end of the middle section body, two pairs of second pin holes are arranged on the front end face and the rear end face of the middle section body, and a pair of threaded through holes penetrating through the middle section body are arranged on the middle section body in the axial direction.

[0010] The flange end head comprises a flange end head body, a second plug-in convex ring matched with the plug-in recess is processed on the front end of the flange end head body, two pairs of third pin holes and a pair of fixed bolt through holes penetrating through the flange end head body are processed on the front end face of the flange end head body.

[0011] The threaded through holes and the fixed bolt through holes are coaxially arranged with the threaded holes and are connected through fixed bolts, and the second pin holes and the third pin holes are coaxially arranged with the first pin holes and are connected through fixed pins.

[0012] The utility model also includes the following technical features:

[0013] A flange dustproof cap is also arranged on the flange middle section, the flange dustproof cap comprises a tubular mounting part, an annular dustproof plate is integrally processed on the front end of the mounting part, two symmetrically arranged wedge-shaped grooves are processed on the outer wall of the flange middle section, the mounting part is sleeved on the flange middle section to cover the wedge-shaped grooves, and the part of the mounting part corresponding to the wedge-shaped grooves is hammered into the wedge-shaped grooves through a tool.

[0014] The flange end head body is processed into a T-shaped flange end head or a C-shaped flange end head.

[0015] The outer diameter of the flange middle section is the same as that of the base connecting plate, the inner diameter of the flange middle section, the outer diameter of the plug-in boss and the inner diameter of the second plug-in convex ring are the same.

[0016] The included angle between the threaded hole and the adjacent first pin hole is 60°, and the included angle between the two adjacent first pin holes is also 60°.

[0017] The circle where the pair of threaded holes are located is concentric with the circles where the two pairs of first pin holes are located and is coaxially arranged with the base connecting plate, and the radius of the circle where the pair of threaded holes are located is smaller than the radius of the circles where the two pairs of first pin holes are located.

[0018] The radius of the circle where the pair of threaded holes are located is greater than the outer diameter of the first annular groove.

[0019] The rear end of the flange end head body is reserved with a bolt recess at the position corresponding to the fixing bolt through hole.

[0020] The outer side of the front end of the base body is circumferentially machined with a chamfer.

[0021] The front end of the spline is machined with a chamfer.

[0022] Compared with the prior art, the utility model has the following technical effects:

[0023] The utility model discloses a combined structure, when facing different whole vehicle matching demand, can select different type's flange end head, more T type flange end head and C type flange end head, to realize matching function, can significantly reduce development cost, improve the matching efficiency of transmission, reduce development cost, improve the adaptability, can select different length's flange middle section simultaneously, when whole vehicle matching process needs to change transmission installation length, can directly switch, improve matching efficiency, and integrate flange dustproof cap to flange middle section, combine the bevel groove's groove design and make flange dustproof cap convenient to install and remove, avoid the risk that outside impurity enters transmission oil circulation system, improve the reliability of transmission whole, reduce the risk rate. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 It is C type flange schematic diagram.

[0025] Figure 2 It is T type flange schematic diagram.

[0026] Figure 3 It is the overall structure (C type flange end head) schematic diagram of the utility model.

[0027] Figure 4 It is the overall structure (T type flange end head) schematic diagram of the utility model.

[0028] Figure 5 It is the flange base front end schematic diagram of the utility model.

[0029] Figure 6 It is the flange base rear end schematic diagram of the utility model.

[0030] Figure 7is a front end schematic view of a middle section of the flange of the utility model.

[0031] Figure 8 is a rear end schematic view of the middle section of the flange of the utility model.

[0032] Figure 9 is a front end schematic view of a C-shaped flange end of the utility model.

[0033] Figure 10 is a rear end schematic view of the C-shaped flange end of the utility model.

[0034] Figure 11 is a front end schematic view of a T-shaped flange end of the utility model.

[0035] Figure 12 is a rear end schematic view of the T-shaped flange end of the utility model.

[0036] Figure 13 is a sectional view schematic of the utility model Figure 1 .

[0037] Figure 14 is a sectional view schematic of the utility model Figure 2 .

[0038] The meaning of each reference numeral in the figure is:

[0039] 1, flange base, 2, flange middle section, 3, flange end, 4, fixed bolt, 5, fixed pin, 6, flange dust cap;

[0040] 1-1, base body, 1-2, base connecting plate, 1-3, plug-in boss, 1-4, spline, 1-5, sealing ring installation groove, 1-6, first annular groove, 1-7, threaded hole, 1-8, first pin hole;

[0041] 2-1, middle section body, 2-2, first plug-in convex ring, 2-3, plug-in concave, 2-4, threaded hole, 2-5, second pin hole, 2-6, wedge-shaped groove;

[0042] 3-1, flange end body, 3-2, second plug-in convex ring, 3-3, third pin hole, 3-4, fixed bolt through hole, 3-5, bolt concave;

[0043] 6-1, installation part, 6-2, dust plate.

[0044] The specific content of the utility model is further explained and described in detail in combination with the embodiments. DETAILED DESCRIPTION

[0045] Following the above technical solution, the following are specific embodiments of this utility model. It should be noted that this utility model is not limited to the following specific embodiments, and all equivalent modifications made based on the technical solution of this application fall within the protection scope of this utility model.

[0046] In this utility model, unless otherwise stated, directional terms such as "upper", "lower", "left", and "right" are generally defined based on the drawing in the corresponding figure; "inner" and "outer" refer to the inner and outer contours of the corresponding components; and "longitudinal", "transverse", and "vertical" refer to the directions marked in the figure.

[0047] Example:

[0048] This embodiment provides a combined flange structure, such as Figures 3 to 14 As shown, it includes a flange base 1, a flange middle section 2, and a flange end 3. The front end of the flange base 1 is connected to the gearbox, the rear end of the flange base 1 is connected to the front end of the flange middle section 2, and the rear end of the flange middle section 2 is connected to the front end of the flange end 3.

[0049] The flange base 1 includes a cylindrical base body 1-1, an annular base connecting plate 1-2, and a plug-in boss 1-3. The base body 1-1, the base connecting plate 1-2, and the plug-in boss 1-3 are coaxially integrated. The base body 1-1 and the base connecting plate 1-2 have the same inner diameter. The inner walls of the base body 1-1 and the base connecting plate 1-2 are machined with interconnecting splines 1-4. The inner wall of the plug-in boss 1-3 is machined with a sealing ring mounting groove 1-5. A sealing ring is installed in the sealing ring mounting groove 1-5. The rear end of the spline 1-4 is connected to the sealing ring mounting groove 1-5.

[0050] A first annular groove 1-6 is provided on the rear end face of the base connecting plate 1-2. The first annular groove 1-6 is coaxially arranged with the base connecting plate 1-2. A pair of symmetrically arranged threaded holes 1-7 and two pairs of symmetrically arranged first pin holes 1-8 are provided on the rear end face of the base connecting plate 1-2 outside the first annular groove 1-6.

[0051] The flange middle section 2 includes a cylindrical middle section body 2-1. The front end of the middle section body 2-1 is integrally machined with a first insertion protrusion ring 2-2 that matches the first annular groove 1-6. The inner side of the rear end of the middle section body 2-1 is provided with an insertion recess 2-3. Two pairs of second pin holes 2-5 are provided on both the front end face and the rear end face of the middle section body 2-1. A pair of threaded through holes 2-4 are provided along the axial direction of the middle section body 2-1.

[0052] The flange end 3 comprises a flange end body 3-1, a second plug-in convex ring 3-2 is machined on the front end of the flange end body 3-1 and matches the plug-in concave groove 2-3, two pairs of third pin holes 3-3 and a pair of fixed bolt through holes 3-4 passing through the flange end body 3-1 are machined on the front end face of the flange end body 3-1;

[0053] The threaded through hole 2-4 and the fixed bolt through hole 3-4 are coaxially arranged with the threaded hole 1-7 and are connected by the fixed bolt 4, and the second pin hole 2-5 and the third pin hole 3-3 are coaxially arranged with the first pin hole 1-8 and are connected by the fixed pin 5.

[0054] In the embodiment, the flange base 1, the flange middle section 2 and the flange end 3 are connected by the ring groove plug-in structure two by two, so that the structure has a positioning function, the flange base 1, the flange middle section 2 and the flange end 3 can not be radially displaced when being cooperatively installed, and the assembly can be more accurately and quickly completed, the threaded hole 1-7, the threaded through hole 2-4 and the fixed bolt through hole 3-4 are symmetrically arranged in pairs, so that the flange disc is not affected by the axial tension and the strength of the overall structure is not affected, the fixed bolt 4 is used to keep the parts fixed, the fixed pin 5 cooperates with the first pin hole 1-8, the second pin hole 2-5 and the third pin hole 3-3 to bear the torque during the transmission of the flange disc, the front end of the flange base 1 cooperates with the transmission shaft part inside the transmission, the spline 1-4 is used to transmit torque and rotational speed, the sealing ring installation groove 1-5 is used in combination with the sealing ring to prevent oil leakage, the flange middle section 2 can be designed in different axial lengths, when the layout length of the transmission on the vehicle changes, the flange middle section 2 with a suitable length can be selected for adaptation, the development cost is reduced, material waste is avoided, and potential problems in the matching process are reduced.

[0055] Because the flange is in the state of being exposed to the outside environment of the transmission in the whole vehicle layout, impurities in the environment can easily enter the inside of the transmission from the corresponding part of the flange, thereby causing impurities in the transmission oil, and affecting the realization of normal function. As a preferred scheme of the embodiment, the flange dustproof cap 6 installed on the middle section 2 of the flange is further included in the embodiment, the flange dustproof cap 6 includes a tubular mounting part 6-1, an annular dustproof plate 6-2 is integrally processed at the front end of the mounting part 6-1, two symmetrically arranged wedge-shaped grooves 2-6 are processed on the outer wall of the middle section 2 of the flange, the mounting part 6-1 is sleeved on the middle section 2 of the flange to cover the wedge-shaped grooves 2-6, and the part of the mounting part 6-1 corresponding to the wedge-shaped grooves 2-6 is hammered into the wedge-shaped grooves 2-6 through a tool, so that the flange dustproof cap 6 is deformed and embedded in the middle section 2 of the flange, and finally combined into one body, thereby avoiding that external impurities enter the inside of the transmission from the connection between the flange base 1 and the middle section 2 of the flange, and protecting the transmission and the oil in the inside of the transmission. When the flange dustproof cap 6 is removed, it needs to be damaged, and the slope structure of the wedge-shaped grooves 2-6 can be removed by force along the direction of the slope, and the disassembly is more labor-saving.

[0056] As a preferred scheme of the embodiment, the flange end head main body 3-1 is processed into a T-shaped flange end head or a C-shaped flange end head in the embodiment, the flange end head main body 3-1 can be a flange end head of different structures, but the front end structure of the flange end head main body 3-1 is the same, and is adapted to the middle section 2 of the flange. Different flange end heads 3 can be switched according to actual needs to adapt to different engines, thereby improving the applicability of the product and reducing the development cost.

[0057] As a preferred scheme of the embodiment, the outer diameter of the middle section 2 of the flange is the same as that of the base connecting plate 1-2, and the inner diameter of the middle section 2 of the flange, the outer diameter of the plug-in boss 1-3 and the inner diameter of the second plug-in convex ring 3-2 are the same, thereby facilitating quick installation.

[0058] As a preferred scheme of the embodiment, the included angle between the threaded hole 1-7 and the adjacent first pin hole 1-8 is 60°, and the included angle between the two adjacent first pin holes 1-8 is also 60°. The above angle is arranged to ensure that the fixing bolts 4 are uniformly stressed and improve the stability of the connection.

[0059] As a preferred scheme of the embodiment, the circle where the pair of threaded holes 1-7 is located and the circles where the two pairs of first pin holes 1-8 are located are concentric circles and are coaxially arranged with the base connecting plate 1-2. The radius of the circle where the pair of threaded holes 1-7 is located is smaller than the radius of the circles where the two pairs of first pin holes 1-8 are located.

[0060] Further, the radius of the circle where the pair of threaded holes 1-7 is located is greater than the outer diameter of the first annular groove 1-6.

[0061] As a preferred form of the present embodiment, the rear end of the flange end body 3-1 in the present embodiment is provided with a bolt recess 3-5 at the position corresponding to the bolt through hole 3-4, and the depth of the bolt recess 3-5 has certain requirements to prevent assembly interference caused by the too high height of the bolt head after the installation of the fixing bolt.

[0062] As a preferred form of the present embodiment, the outer side of the front end of the base body 1-1 in the present embodiment is circumferentially machined with a chamfer.

[0063] As a preferred form of the present embodiment, the front end of the spline 1-4 in the present embodiment is machined with a chamfer, which makes the flange base 1 more convenient to assemble to the output shaft inside the transmission.

[0064] In actual operation of the present embodiment:

[0065] First, the flange dust cap 6 is installed on the flange middle section 2, and then the eight positioning pins 5 are fixed in the second pin hole 2-5 of the flange middle section 2, and are respectively aligned with the first pin hole 1-8 and the third pin hole 3-3, so that the first annular groove 1-6 and the first insertion convex ring 2-2 correspond, and the insertion recess 2-3 and the second insertion convex ring 3-2 correspond, the flange base 1, the flange middle section 2 and the flange end 3 are connected, and finally two fixing bolts 4 are used to pass through the fixing bolt through hole 3-4, the threaded hole 2-4 and the threaded hole 1-7 in sequence for fixation, and the installation is completed.

[0066] When facing different whole vehicle matching requirements, different types of flange ends 3 can be selected, mostly T-shaped flange ends and C-shaped flange ends, to realize the matching function, which can significantly reduce the development cost, improve the universality of the transmission, and reduce the development cycle; and the flange dust cap 6 is integrated into the flange middle section 2, realizing the function of protecting the cleanliness of the oil inside the transmission, improving the reliability of the transmission; at the same time, flange middle sections 2 of different lengths can be selected, which can be directly switched when the whole vehicle matching process needs to change the installation length of the transmission, improving the matching efficiency.

Claims

1. A combined flange structure, characterized by It includes flange base (1), flange middle section (2) and flange end head (3), the front end of flange base (1) is connected with transmission, the rear end of flange base (1) is connected with the front end of flange middle section (2), the rear end of flange middle section (2) is connected with the front end of flange end head (3); The flange base (1) includes a cylindrical base body (1-1), an annular base connecting plate (1-2) and a plug-in boss (1-3), the base body (1-1), the base connecting plate (1-2) and the plug-in boss (1-3) are coaxially arranged, the inner diameter of the base body (1-1) and the base connecting plate (1-2) is the same, the inner wall of the base body (1-1) and the base connecting plate (1-2) is processed with a spline (1-4) in communication, the inner wall of the plug-in boss (1-3) is processed with a sealing ring mounting groove (1-5), a sealing ring is mounted in the sealing ring mounting groove (1-5), the rear end of the spline (1-4) is communicated with the sealing ring mounting groove (1-5); The rear end surface of the base connecting plate (1-2) is provided with a first annular groove (1-6), the first annular groove (1-6) is coaxially arranged with the base connecting plate (1-2), the rear end surface of the base connecting plate (1-2) outside the first annular groove (1-6) is provided with a pair of symmetrically arranged threaded holes (1-7) and two pairs of symmetrically arranged first pin holes (1-8); The flange middle section (2) includes a cylindrical middle section body (2-1), the front end of the middle section body (2-1) is integrally processed with a first plug-in convex ring (2-2) matched with the first annular groove (1-6), the rear end inside of the middle section body (2-1) is provided with a plug-in recess (2-3), the front end surface and the rear end surface of the middle section body (2-1) are both provided with two pairs of second pin holes (2-5), the middle section body (2-1) is axially provided with a pair of threaded through holes (2-4) penetrating the middle section body (2-1); The flange end head (3) includes a flange end head body (3-1), the front end of the flange end head body (3-1) is processed with a second plug-in convex ring (3-2) matched with the plug-in recess (2-3), the front end surface of the flange end head body (3-1) is processed with two pairs of third pin holes (3-3) and a pair of fixed bolt through holes (3-4) penetrating the flange end head body (3-1); The threaded through holes (2-4) and the fixed bolt through holes (3-4) are coaxially arranged with the threaded holes (1-7) and connected by fixed bolts (4), the second pin holes (2-5) and the third pin holes (3-3) are coaxially arranged with the first pin holes (1-8) and connected by fixed pins (5).

2. The combined flange structure as set forth in claim 1, wherein The flange dustproof cap (6) is installed on the flange middle section (2), and includes a tubular mounting part (6-1) and an annular dustproof plate (6-2) integrally formed at the front end of the mounting part (6-1).

3. The combined flange structure as recited in claim 1, wherein The flange end head body (3-1) is processed into a T-shaped flange end head or a C-shaped flange end head.

4. The combined flange structure as recited in claim 1, wherein The outer diameter of the flange middle section (2) is the same as that of the base connecting plate (1-2), and the inner diameter of the flange middle section (2), the outer diameter of the plug-in boss (1-3) and the inner diameter of the second plug-in convex ring (3-2) are the same.

5. The combined flange structure as recited in claim 1, wherein The included angle between the threaded hole (1-7) and the adjacent first pin hole (1-8) is 60°, and the included angle between the two adjacent first pin holes (1-8) is also 60°.

6. The combined flange structure as recited in claim 1, wherein The circle where the pair of threaded holes (1-7) is located is concentric with the circles where the two pairs of first pin holes (1-8) are located and is coaxially arranged with the base connecting plate (1-2), and the radius of the circle where the pair of threaded holes (1-7) is located is smaller than the radius of the circles where the two pairs of first pin holes (1-8) are located.

7. The combined flange structure as recited in claim 1, wherein The radius of the circle where the pair of threaded holes (1-7) is located is greater than the outer diameter of the first annular groove (1-6).

8. The combined flange structure as recited in claim 1, wherein The rear end of the flange end head body (3-1) is reserved with a bolt recess (3-5) corresponding to the fixed bolt through hole (3-4).

9. The combined flange structure as recited in claim 1, wherein The outer side of the front end of the base body (1-1) is processed with a chamfer along the circumference.

10. The combined flange structure as set forth in claim 1, wherein The front end of the spline (1-4) is processed with a chamfer.

Images