CN219029123U - Transmission shaft support piece - Google Patents
Transmission shaft support piece Download PDFInfo
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- CN219029123U CN219029123U CN202223025669.5U CN202223025669U CN219029123U CN 219029123 U CN219029123 U CN 219029123U CN 202223025669 U CN202223025669 U CN 202223025669U CN 219029123 U CN219029123 U CN 219029123U
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Abstract
The utility model relates to the technical field of automobile accessories, and particularly discloses a transmission shaft support piece, wherein a bearing sleeve which is fixed through threads by two groups of fastening bolts is penetrated and sleeved in a closing cavity of a lower support and an upper support, a first heat dissipation inner groove is formed in the middle of the closing cavity of a lower seat body, a second heat dissipation inner groove is formed in the middle of the closing cavity of the upper seat body, and two groups of diversion trenches are symmetrically formed in the inner wall of a sleeve of a hoop sleeve by taking the center of a sleeve channel as a boundary. The utility model replaces the traditional mode of supporting the transmission shaft by using the solid supporting piece, and the heat conduction and heat exchange of the heat dissipation fin plates in the heat dissipation inner grooves and the auxiliary heat dissipation of the heat dissipation holes in the involution cavity are simultaneously utilized by arranging the two groups of heat dissipation inner grooves in the involution cavity of the lower support and the upper support, so that the heat conduction and heat exchange work of external heat dissipation mechanical heat generated by the high-speed operation of the transmission shaft and the bearing thereof can be performed in time, thereby improving the heat dissipation efficiency of the transmission shaft.
Description
Technical Field
The utility model relates to the technical field of automobile accessories, in particular to a transmission shaft support piece.
Background
The transmission shaft is an important part for transmitting power in the automobile transmission system, and is used for transmitting the power of an engine to wheels together with a gearbox and a drive axle so as to enable the automobile to generate driving force, and is generally made of light alloy steel pipes with good torsion resistance.
The existing supporting pieces for the automobile transmission shaft are mostly in the form of supporting seats of solid structures, in the supporting process of the transmission shaft, the transmission shaft and a bearing matched with the transmission shaft for use are in the high-speed rotating process, mechanical heat generated by the transmission shaft can only be slowly conducted and radiated through the solid supporting pieces, the radiating efficiency is low, the transmission shaft is extremely easy to suffer from thermal fatigue and embrittlement due to mechanical high-temperature aggregation, and the long-term operation of the transmission shaft is not utilized.
Disclosure of Invention
The utility model aims to provide a supporting piece of a transmission shaft, which solves the problems that most of the supporting pieces for the transmission shaft in the prior art are in a solid structure supporting seat form, mechanical heat generated by the transmission shaft and a bearing matched with the transmission shaft can only be slowly conducted and radiated through the solid structure, the radiating efficiency is low, and thermal fatigue and embrittlement of the transmission shaft are easily caused by mechanical high-temperature aggregation.
In order to achieve the above purpose, the present utility model provides the following technical solutions: a transmission shaft support piece comprises a lower support, an upper support, a fastening bolt and a bearing sleeve;
the upper support is arranged above the lower support in a butt joint way along the coaxial direction, and a bearing sleeve which is fixed through threads of two groups of fastening bolts penetrates through the inside of a butt joint chamber of the lower support and the upper support;
the lower support comprises a lower support body, and a first heat dissipation inner groove is formed in the middle of the involution cavity of the lower support body;
the upper support comprises an upper base body oppositely pressed above the lower base body, and a second heat dissipation inner groove is formed in the middle of the involution cavity of the upper base body;
the bearing sleeve comprises a hoop sleeve sleeved between the upper seat body and the lower seat body, and two groups of diversion trenches are symmetrically formed in the inner wall of the sleeve of the hoop sleeve by taking the center of a sleeve channel as a boundary.
As still further aspects of the utility model: the butt joint ends of the lower support and the upper support are provided with step seats which are mutually staggered and clamped, and an integrated structure is formed between the lower support and the upper support through two groups of fastening bolts which symmetrically penetrate through the step seats;
the middle part of the step seat of the lower support is penetrated and provided with a thread groove A screwed with two groups of fastening bolts, the middle part of the step seat of the upper support is penetrated and provided with a thread groove B screwed with two groups of fastening bolts, and the thread groove A is aligned with a thread opening of the thread groove B.
As still further aspects of the utility model: the first heat dissipation inner groove and the second heat dissipation inner groove are combined to form an annular heat dissipation cavity, a plurality of groups of first heat dissipation fin plates are circumferentially arranged on the lower half part of the annular heat dissipation cavity in front of the inner groove of the first heat dissipation inner groove, and a plurality of groups of second heat dissipation fin plates are circumferentially arranged on the upper half part of the annular heat dissipation cavity in front of the inner groove of the second heat dissipation inner groove.
As still further aspects of the utility model: a plurality of groups of first heat dissipation openings are arranged on two sides of the opposite joint cavity of the lower seat body, which are opposite to the notch of the first heat dissipation inner groove, along the circumferential direction of the inner wall of the cavity;
the two sides of the involution cavity of the upper seat body, which are right opposite to the notch of the second heat dissipation inner groove, are circumferentially distributed along the inner wall of the cavity and are provided with a plurality of groups of second heat dissipation openings;
the first heat dissipation openings and the second heat dissipation openings are symmetrically arranged in an annular mode along the involution cavity.
As still further aspects of the utility model: a instillation screw hole is formed in the middle position above the seat body of the upper seat body in a penetrating manner, and a sealing nut is screwed at the upper port of the instillation screw hole;
the outside of the sleeve of the hoop sleeve is provided with a instillation pipe orifice which is right opposite to the lower port of the instillation screw hole, and the instillation pipe orifice extends into the lower port of the instillation screw hole.
As still further aspects of the utility model: the instillation tube orifice is positioned at the middle part of the tube channel of the hoop sleeve;
the two groups of guide grooves are of spiral structures, and are arranged in a positive and negative symmetry mode relative to the center of the tube channel of the hoop sleeve, and spiral involution ends of the two groups of guide grooves extend to the bottom tube orifice of the instillation tube orifice symmetrically.
Compared with the prior art, the utility model has the beneficial effects that:
the utility model replaces the traditional mode of supporting the transmission shaft by using the solid supporting piece, and simultaneously utilizes the heat conduction and heat exchange of the heat dissipation fin plates in the heat dissipation inner grooves and the auxiliary heat dissipation of the heat dissipation holes in the involution chamber to timely conduct heat conduction and heat exchange work on the transmission shaft and the external heat dissipation mechanical heat generated by the high-speed running of the bearing thereof, so that the heat dissipation efficiency of the transmission shaft is improved, and simultaneously, the two groups of guide grooves symmetrically arranged on the bearing sleeve can conduct visual heat conduction and heat exchange on the mechanical heat generated by the transmission shaft, so that the conduction and heat dissipation rate of the mechanical heat is accelerated, and the conditions of thermal fatigue, embrittlement and the like caused by overhigh mechanical heat aggregation of the transmission shaft are avoided.
Drawings
FIG. 1 is a schematic view of a drive shaft support;
FIG. 2 is a schematic plan view of a drive shaft support;
FIG. 3 is an expanded schematic view of a drive shaft support;
FIG. 4 is a schematic view of the structure of the lower support in the drive shaft support;
FIG. 5 is a schematic view of the structure of the upper mount in the drive shaft support;
FIG. 6 is a bottom view of the upper mount in the drive shaft support;
fig. 7 is a schematic structural view of a bearing housing in a drive shaft support.
In the figure: 1. a lower support; 11. a lower base; 12. a mounting hole; 13. a first heat dissipation opening; 14. a first heat dissipation inner groove; 15. a first heat dissipating fin; 16. a thread groove A; 2. an upper support; 21. an upper base; 22. a thread groove B; 23. instilling screw holes; 24. a sealing nut; 25. a second heat dissipation opening; 26. a second heat dissipation inner groove; 27. a second heat dissipating fin; 3. a fastening bolt; 4. a bearing sleeve; 41. a hoop sleeve; 42. a drip tube orifice; 43. and a diversion trench.
Detailed Description
Referring to fig. 1-7, in the embodiment of the utility model, a transmission shaft support member includes a lower support 1, an upper support 2, fastening bolts 3, and a bearing sleeve 4, wherein the upper support 2 is mounted above the lower support 1 in a coaxial direction, the bearing sleeve 4 screwed by the two sets of fastening bolts 3 is inserted through the inside of a mating chamber of the lower support 1 and the upper support 2, step seats which are mutually staggered and clamped are disposed at the mating ends of the lower support 1 and the upper support 2, an integral structure is formed between the lower support 1 and the upper support 2 by the two sets of fastening bolts 3 which symmetrically penetrate through the step seats, a thread groove a16 screwed by the two sets of fastening bolts 3 is formed in the middle of the step seat of the lower support 1, a thread groove B22 screwed by the two sets of fastening bolts 3 is formed in the middle of the step seat of the upper support 2, the thread groove a16 is aligned with the thread opening of the thread groove B22, in the assembly process of the assembly of the automobile transmission shaft support member, the bearing sleeve 4 is firstly clamped in the cavity of the lower support 1, then the upper support 2 is pressed on the lower support 1, and simultaneously the upper support 2 and the bearing sleeve 4 are screwed by the thread groove B22 in the same time, and the assembly of the assembly device is assembled by the thread groove B2, and the assembly device is screwed by the thread groove B2 is formed in the thread groove B and the assembly device, and the assembly device is assembled in the assembly of the assembly 4.
The lower support 1 comprises a lower base body 11, a first heat dissipation inner groove 14 is arranged in the middle of a butt joint cavity of the lower base body 11, the upper support 2 comprises an upper base body 21 oppositely pressed above the lower base body 11, a second heat dissipation inner groove 26 is arranged in the middle of the butt joint cavity of the upper base body 21, the first heat dissipation inner groove 14 and the second heat dissipation inner groove 26 are butt joint to form an annular heat dissipation cavity, a plurality of groups of first heat dissipation fin plates 15 are circumferentially arranged on the lower half part of the annular heat dissipation cavity right opposite to the inner groove of the first heat dissipation inner groove 14, a plurality of groups of second heat dissipation fin plates 27 are circumferentially arranged on the upper half part of the annular heat dissipation cavity right opposite to the inner groove of the second heat dissipation inner groove 26, when the supporting piece is used for supporting the automobile transmission shaft and the supporting bearing thereof, mechanical heat generated by the relative high-speed rotation of the transmission shaft and the bearing is conducted outwards through the bearing sleeve 4 and dissipated, then in the mechanical heat conduction and dissipation process, the annular heat dissipation cavity formed by the first heat dissipation inner groove 14 and the second heat dissipation inner groove 26, and the first heat dissipation fin plates 15 and the second heat dissipation fin plates 27 which are uniformly and symmetrically arranged in the annular heat dissipation cavity can conduct heat and exchange heat to the mechanical heat timely, and the mechanical heat after heat conduction and exchange is conducted through the lower support 1 and the upper support 2 to exchange heat with external cold air, so that the heat dissipation circulation rate of the mechanical heat is accelerated.
The two sides of the notch of the lower seat body 11, which are opposite to the first heat dissipation inner groove 14, are circumferentially arranged with a plurality of groups of first heat dissipation openings 13 along the inner wall of the chamber, the two sides of the notch of the upper seat body 21, which are opposite to the second heat dissipation inner groove 26, are circumferentially arranged with a plurality of groups of second heat dissipation openings 25 along the inner wall of the chamber, the plurality of groups of first heat dissipation openings 13 and the second heat dissipation openings 25 are annularly and symmetrically arranged along the chamber, and in the process of conducting and dissipating mechanical heat generated by a transmission shaft, a part of mechanical heat dissipated from the bearing sleeve 4 is directly dissipated into the first heat dissipation openings 13 and the second heat dissipation openings 25 which are annularly arranged, and the mechanical heat is conducted and dissipated again from the lower support 1 and the upper support 2 to exchange heat with external cold air, so that the heat dissipation efficiency of the mechanical heat is further improved.
The bearing sleeve 4 comprises a hoop sleeve 41 sleeved between the upper seat body 21 and the lower seat body 11, two groups of guide grooves 43 are symmetrically formed in the inner wall of the barrel sleeve of the hoop sleeve 41 by taking the center of a barrel channel as a boundary, a instilling screw hole 23 is formed in the middle position above the seat body of the upper seat body 21 in a penetrating manner, a sealing nut 24 is screwed on the upper port of the instilling screw hole 23, an instilling pipe orifice 42 corresponding to the lower port of the instilling screw hole 23 is formed in the outer part of the barrel sleeve of the hoop sleeve 41, the instilling pipe orifice 42 extends into the lower port of the instilling screw hole 23, in the supporting process of the transmission shaft and a supporting bearing thereof by using a supporting piece, when the transmission shaft and the supporting bearing thereof are not smooth in rotation, the sealing nut 24 can be unscrewed from the instilling screw hole 23, lubricating oil is pressed into the hoop sleeve 41 of the bearing inside the bearing sleeve 4 by the instilling screw hole 23 and the transmission shaft, and the lubricating oil filling work can be carried out without integrally disassembling and assembling the supporting piece.
The instillation pipe orifice 42 is opposite to the middle part of the pipe channel of the hoop sleeve 41, the two groups of guide grooves 43 are of spiral structures, the two groups of guide grooves 43 are symmetrically arranged in the forward direction and the reverse direction relative to the center of the pipe channel of the hoop sleeve 41, the spiral involution ends of the two groups of guide grooves 43 symmetrically extend to the bottom pipe orifice of the instillation pipe orifice 42, and in the supporting process of the transmission and the matched bearings by utilizing the supporting piece, the two groups of spiral guide grooves 43 which are symmetrically arranged in the forward direction and the reverse direction are arranged on the inner wall of the pipe channel of the hoop sleeve 41, so that on one hand, the distribution of lubricating oil can be facilitated, the lubricating oil can be distributed to all directions of the hoop sleeve 41, the lubrication treatment of the bearings arranged at two side ports of the hoop sleeve 41 is facilitated, on the other hand, the spiral guide grooves 43 can improve the heat conduction area of the hoop sleeve 41, and under the filling of the lubricating oil, the mechanical heat can be more intuitively and rapidly discharged in time.
The working principle of the utility model is as follows: when the supporting piece is used for supporting the automobile transmission shaft and the supporting bearing thereof, mechanical heat generated by the relative high-speed rotation of the transmission shaft and the bearing is conducted outwards through the bearing sleeve 4 and dissipated, in the mechanical heat dissipation process by utilizing the bearing sleeve 4, two groups of spiral diversion trenches 43 which are arranged in a forward and reverse symmetrical way are arranged on the inner wall of the barrel channel of the annular sleeve 41, on one hand, the diversion of lubricating oil can be facilitated, on the other hand, the spiral diversion trenches 43 can improve the heat conduction area of the annular sleeve 41, under the filling of lubricating oil, the heat conduction dissipation treatment can be carried out more intuitively and rapidly, the mechanical heat is dissipated timely, and then in the mechanical heat conduction dissipation process, the annular heat dissipation cavity formed by the first heat dissipation inner groove 14 and the second heat dissipation inner groove 26 is formed, and the first heat dissipation fin plates 15 and the second heat dissipation fin plates 27 which are uniformly and symmetrically arranged in the heat dissipation device can conduct heat and exchange heat to mechanical heat timely, the mechanical heat after heat conduction and exchange exchanges heat with external cold air through the lower support 1 and the upper support 2, so that the heat dissipation circulation rate of the mechanical heat is accelerated, in the process of conducting heat and dissipating the mechanical heat generated by the transmission shaft, part of mechanical heat emitted from the bearing sleeve 4 can be directly dissipated into the first heat dissipation opening 13 and the second heat dissipation opening 25 which are annularly arranged, the mechanical heat is conducted and dissipated again from the lower support 1 and the upper support 2, and the heat exchange is carried out with the external cold air, so that the heat dissipation efficiency of the mechanical heat is further improved, and the transmission shaft of the automobile is ensured to be maintained in a stable working environment.
The foregoing description is only a preferred embodiment of the present utility model, but the scope of the present utility model is not limited thereto, and any person skilled in the art, who is within the scope of the present utility model, should make equivalent substitutions or modifications according to the technical solution of the present utility model and the inventive concept thereof, and should be covered by the scope of the present utility model.
Claims (6)
1. The transmission shaft support piece is characterized by comprising a lower support (1), an upper support (2), a fastening bolt (3) and a bearing sleeve (4);
the upper support (2) is arranged above the lower support (1) in a butt joint way along the coaxial direction, and a bearing sleeve (4) which is fixed through threads of two groups of fastening bolts (3) is penetrated and sleeved in the butt joint chamber of the lower support (1) and the upper support (2);
the lower support (1) comprises a lower base body (11), and a first heat dissipation inner groove (14) is formed in the middle of the involution cavity of the lower base body (11);
the upper support (2) comprises an upper base (21) oppositely pressed above the lower base (11), and a second heat dissipation inner groove (26) is formed in the middle of the involution cavity of the upper base (21);
the bearing sleeve (4) comprises a hoop sleeve (41) sleeved between the upper seat body (21) and the lower seat body (11), and two groups of diversion trenches (43) are symmetrically formed in the inner wall of the sleeve of the hoop sleeve (41) by taking the center of a sleeve channel as a boundary.
2. The transmission shaft support according to claim 1, wherein the butt joint ends of the lower support (1) and the upper support (2) are provided with step seats which are mutually staggered and clamped, and an integrated structure is formed between the lower support (1) and the upper support (2) through two groups of fastening bolts (3) which symmetrically penetrate through the step seats;
the middle part of the step seat of the lower support (1) is penetrated and provided with a thread groove A (16) screwed with two groups of fastening bolts (3), the middle part of the step seat of the upper support (2) is penetrated and provided with a thread groove B (22) screwed with two groups of fastening bolts (3), and the thread groove A (16) is aligned with a thread opening of the thread groove B (22).
3. A transmission shaft support according to claim 1, wherein the first heat dissipation inner groove (14) and the second heat dissipation inner groove (26) are combined to form an annular heat dissipation cavity, a plurality of groups of first heat dissipation fin plates (15) are circumferentially arranged on the lower half of the annular heat dissipation cavity relative to the inner groove of the first heat dissipation inner groove (14), and a plurality of groups of second heat dissipation fin plates (27) are circumferentially arranged on the upper half of the annular heat dissipation cavity relative to the inner groove of the second heat dissipation inner groove (26).
4. The transmission shaft support member according to claim 1, wherein a plurality of groups of first heat dissipation openings (13) are circumferentially arranged on both sides of the notch of the lower base body (11) opposite to the first heat dissipation inner groove (14) along the inner wall of the cavity;
a plurality of groups of second heat dissipation holes (25) are circumferentially distributed on two sides of a notch of the second heat dissipation inner groove (26) of the involution cavity of the upper seat body (21) along the inner wall of the cavity;
the first heat dissipation openings (13) and the second heat dissipation openings (25) are symmetrically arranged in an annular shape along the matching chamber.
5. A transmission shaft support according to claim 1, characterized in that a drip screw hole (23) is formed in the upper part of the upper seat body (21) at the middle position, and a sealing nut (24) is screwed on the upper port of the drip screw hole (23);
the outside of the cylinder sleeve of the hoop sleeve (41) is provided with a instillation pipe orifice (42) which is right opposite to the lower port of the instillation screw hole (23), and the instillation pipe orifice (42) extends into the lower port of the instillation screw hole (23).
6. The propeller shaft support of claim 5, wherein the drip tube orifice (42) is opposite the collar (41) at a mid-channel position;
the two groups of guide grooves (43) are of spiral structures, the two groups of guide grooves (43) are arranged in a forward and reverse symmetrical mode relative to the center of the barrel channel of the hoop sleeve (41), and spiral involution ends of the two groups of guide grooves (43) symmetrically extend to the bottom pipe orifice of the instillation pipe orifice (42).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223025669.5U CN219029123U (en) | 2022-11-15 | 2022-11-15 | Transmission shaft support piece |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223025669.5U CN219029123U (en) | 2022-11-15 | 2022-11-15 | Transmission shaft support piece |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219029123U true CN219029123U (en) | 2023-05-16 |
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ID=86283618
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223025669.5U Active CN219029123U (en) | 2022-11-15 | 2022-11-15 | Transmission shaft support piece |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219029123U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117818124A (en) * | 2024-03-04 | 2024-04-05 | 天津金洪智造机械有限公司 | Material pressing mechanism of mechanical press |
-
2022
- 2022-11-15 CN CN202223025669.5U patent/CN219029123U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117818124A (en) * | 2024-03-04 | 2024-04-05 | 天津金洪智造机械有限公司 | Material pressing mechanism of mechanical press |
| CN117818124B (en) * | 2024-03-04 | 2024-05-14 | 天津金洪智造机械有限公司 | Material pressing mechanism of mechanical press |
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