CN210290656U - Transmission torque gear with anti-crack function - Google Patents
Transmission torque gear with anti-crack function Download PDFInfo
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- CN210290656U CN210290656U CN201921087797.8U CN201921087797U CN210290656U CN 210290656 U CN210290656 U CN 210290656U CN 201921087797 U CN201921087797 U CN 201921087797U CN 210290656 U CN210290656 U CN 210290656U
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- transmission torque
- torque gear
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Abstract
The utility model provides a transmission torque gear with prevent bursting apart function belongs to machinery. The transmission torque gear with the anti-cracking function comprises a connecting sleeve part and a meshing part which are connected, wherein the connecting sleeve part is provided with a plurality of ribs which are distributed at intervals, and the ribs at least comprise an inward sunken disengaging surface and at least one contact surface which is contacted with the inner wall of a turbine shaft. The transmission gear can reduce the influence of thermal expansion effect and reduce the occurrence of the cracking phenomenon of the turbine shaft.
Description
Technical Field
The utility model belongs to the field of machinery, a transmission torque gear with prevent bursting apart function is related to.
Background
The approximate operation of the automatic adjustment arm is when braking begins, the adjustment arm drives the camshaft to rotate through the clearance angle and the excess clearance angle, and the wear produced is accurately recorded. At the moment, the cam angle stroke is in a clearance area, and the clearance area is characterized in that the braking torque is not greatly changed. When the vehicle is continuously braked, the cam angle stroke enters an elastic deformation area, and the braking torque rises sharply until the vehicle stops. When the pedal is released, the brake returns, the braking torque is reduced, and the cam angle stroke returns to the clearance area. The automatic adjusting arm drives the cam shaft to rotate by a certain angle through the turbine according to the recorded excess clearance during braking, so that one-time adjustment is completed.
One end of the transmission torque gear is provided with a surface matched with the wedge-shaped teeth on the control arm gear assembly, the other end of the transmission torque gear is fixed with a turbine shaft, one end of a fixed mandrel penetrates out of the control arm gear assembly, the other end of the fixed mandrel penetrates out of the transmission torque gear, the two ends of the fixed mandrel are fixed through a fixing piece, a pressure spring is arranged between the fixed mandrel and the transmission torque gear, when the two wedge-shaped teeth are twisted, meshed and dislocated, quick reset can be realized by the pressure spring, the transmission teeth on the control arm gear assembly are meshed with a gear ring, the above parts are parts required to be matched with the transmission torque gear, the general structures and the matching relations of the parts are not mentioned, and the parts are all known by technicians in the field. The traditional transmission torque gear generally comprises two parts, wherein the two parts respectively comprise a connecting sleeve part connected with a turbine shaft and a meshing part meshed with a control arm gear assembly, the turbine shaft and the outer wall of the connecting sleeve part are in tight fit for limiting circumferential motion, a plurality of strip-shaped ribs are generally processed on the outer wall of the connecting sleeve part, a matched caulking groove is formed in the inner wall of the turbine shaft, and the tight fit of the turbine shaft and the connecting sleeve part is realized by utilizing the tight fit of the ribs and the caulking groove. In practical situations, such a problem is a problem that the turbine shaft is prone to crack, and the reason for this is that the connecting region between the turbine shaft and the sleeve part is thermally expanded and cracked due to thermal expansion, so that the sleeve part structure on the current transmission torque gear needs to be improved.
Disclosure of Invention
The utility model aims at the above-mentioned problem that exists among the prior art, provide the transmission square gear with prevent bursting apart the function, this transmission square gear with prevent bursting apart the function can reduce the influence of thermal expansion effect, reduces the emergence that the turbine shaft bursts apart the phenomenon. The problem that the turbine shaft is prone to cracking and the like in the existing transmission torque gear is solved.
The purpose of the utility model can be realized by the following technical proposal: transmission torque gear with prevent function that bursts apart, including continuous cover portion and the meshing portion that links to each other, have a plurality of interval distribution's rib in the cover portion that links to each other, its characterized in that: the ribs at least comprise an inward sunken disengaging surface and at least one contact surface contacted with the inner wall of the turbine shaft.
The components of the transmission gear needing to be matched and used include a turbine shaft, a fixed core shaft, a control arm gear assembly and the like. The approximate fit relationship is as follows: one end of a meshing part on the transmission torque gear and one end of the connecting sleeve part are integrally formed, the other end of the meshing part is provided with a wedge-shaped meshing surface, the transmission torque gear is meshed with the control arm gear assembly, and one end of the control arm gear assembly is provided with a surface matched with the wedge-shaped teeth. The other end of the transmission torque gear is fixed with a turbine shaft, one end of the fixed mandrel penetrates out of the control arm gear assembly, the other end of the fixed mandrel penetrates out of the transmission torque gear, the two ends of the fixed mandrel are fixed through fixing pieces, when ribs on the connecting sleeve portion are tightly matched with caulking grooves in the inner wall of the turbine shaft, the separating surface has the function of providing position compensation for a thermal expansion effect, the separating surface is recessed inwards and refers to the direction which is not contacted with the turbine shaft, the contact surface refers to the surface which is contacted with the inner wall of the turbine shaft on the ribs, and the contact surface and the separating surface can be the same surface or different surfaces on the ribs. The contact surface is used for matching with the inner wall of the turbine shaft, so that the matching area is increased. The cost of the transmission gear is reduced by arranging the disengaging surface.
In the above transmission torque gear with an anti-crack function, the release surface is located on the outer surface wall of the rib.
In this case, the outer wall of the rib is relative to the axis of the attachment, i.e. in a region remote from the axis of the attachment. If the ribs are cuboids, the disengaging surface is located on the top surface of the cuboid, if the ribs are cylinders, the disengaging surface is located on the side wall of the top of the cylinder, and if the ribs are in other irregular shapes, the disengaging surface is generally located on the area most far away from the axis of the connecting sleeve part.
In the above transmission torque gear with an anti-crack function, the separation surface is located on the side wall of the rib.
In this scheme, if the rib is the cuboid, then the lateral wall of rib is the side of cuboid, and when the rib is the cylinder, then break away from the face and be located cylinder lateral part lateral wall.
In the above transmission torque gear with an anti-crack function, there are two auxiliary faces on the same plane as the release face in the contact face, and the release face is located between the two auxiliary faces.
The auxiliary surface belongs to a contact surface firstly, and the auxiliary surface has the function of enabling the surface provided with the disengaging surface to have a surface which is in contact fit with the inner wall of the turbine shaft, so that the surface is prevented from being completely out of contact with the inner wall of the turbine shaft.
In the above transmission torque gear with an anti-crack function, the disengaging surface is of a concave arc structure.
In the above transmission torque gear with an anti-crack function, the disengaging surface is of a concave V-shaped structure.
In practice, the shape of the detachment surface may also be U-shaped, cylindrical, etc.
The rib of the transmission rectangular gear with the anti-cracking function is a cuboid.
The ribs of the cuboid are convenient to process.
The transmission torque gear with the anti-bursting function is characterized in that a pressure spring and an annular groove are further arranged in the transmission torque gear, the annular groove is formed in the inner wall of the port of the connecting sleeve part, and the pressure spring is located in the annular groove.
In the existing transmission torque gear, a pressure spring is arranged between a fixed mandrel and the transmission torque gear, the pressure spring is generally directly sleeved on the outer wall of the fixed mandrel, the pressure spring is limited by utilizing the convex edge of the outer wall of the fixed mandrel, and the structure results in overlong integral length of the assembly. The annular groove is formed in the end portion of the transmission gear, the pressure spring is directly limited in the annular groove, the total length of the assembly is reduced, and meanwhile, the circumferential movement of the pressure spring is limited.
The transmission torque gear with the anti-cracking function further comprises a pressing sheet, and the pressing sheet is located in the annular groove and is abutted to the pressure spring.
When transmission moment gear and control arm gear assembly meshing, the transmission moment gear can take place rotatoryly, it also takes place rotatoryly to drive the pressure spring this moment, consequently fixed dabber can cause wearing and tearing to the pressure spring, this problem has been avoided through the preforming design, the preforming is for leaning on the contact with the pressure spring, when transmission moment gear takes place the motion, the preforming directly rotates the contact with fixed dabber, the pressure spring is not direct contact, preforming and pressure spring are rotatory simultaneously, consequently, the very big degree has reduced wearing and tearing.
In the above-mentioned transmission torque gear with an anti-crack function, the annular engaging groove is formed at the joint of the connecting sleeve portion and the engaging portion.
The annular matching groove is used for allowing the turbine shaft to enter, and the connecting length and the connecting strength are increased.
Compared with the prior art, the transmission torque gear with the anti-crack function has the following advantages:
1. the transmission torque gear with the anti-crack function utilizes the thermal expansion effect to provide position compensation through the design of the separation surface.
2. The contact surface in the transmission torque gear with the anti-cracking function is provided with the auxiliary surface structure, so that the auxiliary surface in contact with the turbine shaft is arranged on the surface, provided with the disengaging surface, of the rib, and the connection strength is improved.
3. This transmission torque gear with prevent function that bursts and splits embeds the pressure spring, has reduced the overall length of assembly, has avoided the wearing and tearing of pressure spring and fixed dabber through the preforming design simultaneously, design benefit has prolonged the life of spare part.
Drawings
Fig. 1 is a schematic structural view of the present transmission torque gear having an anti-chipping function.
Fig. 2 is a structural sectional view of the present transmission torque gear having an anti-chipping function.
Fig. 3 is a plan view of the present transmission torque gear having the chipping prevention function.
Fig. 4 is an enlarged view of a structure of the region a in fig. 1.
List of reference numerals
In the figure:
1. a connecting sleeve part;
1a, ribs;
1a1, release surface;
1a2, contact surface;
1a2a, minor face;
1b, a ring groove;
2. an engaging portion;
2a, a wedge-shaped meshing surface;
3. a pressure spring;
4. tabletting;
12. an annular mating groove.
Detailed Description
As shown in fig. 1 to 4, the transmission torque gear with the anti-crack function comprises a connecting sleeve part 1 and a meshing part 2 which are connected, wherein the connecting sleeve part 1 is provided with a plurality of ribs 1a which are distributed at intervals, and the ribs 1a at least comprise an inward-concave disengaging surface 1a1 and at least one contact surface 1a2 which is in contact with the inner wall of a turbine shaft. The components of the transmission gear needing to be matched and used include a turbine shaft, a fixed core shaft, a control arm gear assembly and the like. The approximate fit relationship is as follows: one end of a meshing part 2 on the transmission torque gear and one end of a connecting sleeve part 1 are integrally formed, the other end of the meshing part 2 is provided with a wedge-shaped meshing surface 2a, the transmission torque gear is meshed with a control arm gear assembly, and one end of the control arm gear assembly is provided with a surface matched with wedge-shaped teeth. The other end of the transmission torque gear is fixed with a turbine shaft, one end of a fixed mandrel penetrates through the control arm gear assembly, the other end of the fixed mandrel penetrates through the transmission torque gear, the two ends of the fixed mandrel are fixed through fixing pieces, when ribs 1a on the connecting sleeve part 1 are tightly matched with embedding grooves in the inner wall of the turbine shaft, the release surface 1a1 is used for providing position compensation for a thermal expansion effect, the release surface 1a1 is inwards recessed and is recessed in the direction not contacting with the turbine shaft, the contact surface 1a2 is a surface of the ribs 1a, which is in contact with the inner wall of the turbine shaft, and the contact surface 1a2 and the release surface 1a1 can be the same surface of the ribs 1a or different surfaces. The contact surface 1a2 is used for forming fit with the inner wall of the turbine shaft, and the fit area is increased. The cost of the transmission gear is reduced by arranging the disengaging surface 1a 1.
Specifically, the release surface 1a1 is located on the outer surface wall of the rib 1 a. In this embodiment, the outer surface wall of the rib 1a is relative to the axis of the attachment portion 1, i.e., a region away from the axis of the attachment portion 1. If rib 1a is a rectangular parallelepiped, release surface 1a1 is located on the top surface of the rectangular parallelepiped, if rib 1a is a cylinder, release surface 1a1 is located on the top side wall of the cylinder, and if rib 1a is other irregular shape, release surface 1a1 is generally located on the region farthest from the axis of connecting sleeve portion 1. The contact surface 1a2 includes facets 1a2a on the same plane as the release surface 1a1, and the two facets 1a2a are provided, and the release surface 1a1 is located between the facets 1a2 a. The auxiliary surface 1a2a belongs to the contact surface 1a2 firstly, and the auxiliary surface 1a2a has the function of enabling the surface provided with the disengaging surface 1a1 to have a surface which is in contact fit with the inner wall of the turbine shaft, and preventing the surface from not being in contact with the inner wall of the turbine shaft at all. The disengaging surface 1a1 is a concave arc structure. The ribs 1a are rectangular solids. The rectangular ribs 1a are convenient to process. The transmission torque gear is also internally provided with a pressure spring 3 and a ring groove 1b, the ring groove 1b is formed in the inner wall of the port of the connecting sleeve part 1, and the pressure spring 3 is positioned in the ring groove 1 b. In the existing transmission torque gear, a pressure spring 3 is arranged between a fixed mandrel and the transmission torque gear, the pressure spring 3 is generally directly sleeved on the outer wall of the fixed mandrel, the pressure spring is limited by utilizing the convex edge of the outer wall of the fixed mandrel, and the structure results in overlong integral length of the assembly. The annular groove 1b is formed in the end portion of the transmission gear, the pressure spring 3 is directly limited in the annular groove 1b, the overall length of the assembly is reduced, and meanwhile the circumferential movement of the pressure spring 3 is limited. The transmission torque gear also comprises a pressing sheet 4, and the pressing sheet 4 is positioned in the annular groove 1b and is abutted against the pressure spring. When transmission moment gear and control arm gear assembly meshing, the transmission moment gear can take place rotatoryly, it also takes place rotatoryly to drive the pressure spring 3 this moment, consequently, fixed dabber can cause wearing and tearing to pressure spring 3, this problem has been avoided through 4 designs of preforming, preforming 4 and pressure spring 3 are for leaning on the contact, when transmission moment gear takes place the motion, preforming 4 directly rotates the contact with fixed dabber, pressure spring 3 is not direct contact, preforming 4 and pressure spring 3 are rotatory simultaneously, consequently, the wearing and tearing have been reduced to very big degree. An annular engaging groove 12 is formed at the joint of the sleeve portion 1 and the engaging portion 2. The annular mating grooves 12 function to admit the turbine shaft and increase the length and strength of the joint.
In practice, the release surface 1a1 may be located on the side wall of the rib 1a, and the shape of the release surface 1a1 may be a concave V-shape.
Details, structures, dimensions and principles not mentioned in the present application are all known in the art or can be obtained by simple selection of those skilled in the art, and are not described in detail.
The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.
Claims (10)
1. Transmission torque gear with prevent function that bursts apart, including continuous cover portion and the meshing portion that links to each other, have a plurality of interval distribution's rib in the cover portion that links to each other, its characterized in that: the ribs at least comprise an inward sunken disengaging surface and at least one contact surface contacted with the inner wall of the turbine shaft.
2. The transmission torque gear with an anti-chipping function according to claim 1, wherein the disengaging surface is located on an outer surface wall of the rib.
3. The transmission torque gear with an anti-chipping function according to claim 1, wherein the disengaging surface is located on a side wall of the rib.
4. The transmission torque gear with an anti-chipping function according to claim 1, 2 or 3, wherein there are two of the facets on the same plane as the release surface and the release surface is located between the two facets.
5. The transmission torque gear with an anti-chipping function according to claim 1, 2 or 3, wherein the disengaging surface is of a concave arc structure.
6. The transmission torque gear with an anti-chipping function according to claim 1, 2 or 3, wherein the disengaging surface has a concave V-shaped structure.
7. The transmission torque gear with an anti-chipping function according to claim 1, 2 or 3, wherein the rib is a rectangular parallelepiped.
8. The transmission torque gear with the anti-crack function according to claim 1, 2 or 3, wherein the transmission torque gear further has a pressure spring and a ring groove therein, the ring groove is opened on an inner wall of the port of the connecting sleeve portion, and the pressure spring is located in the ring groove.
9. The transmission torque gear with an anti-crack function as claimed in claim 8, further comprising a pressing piece inside the transmission torque gear, wherein the pressing piece is located inside the annular groove and is abutted against the pressing spring.
10. The transmission torque gear with an anti-chipping function according to claim 1, 2 or 3, wherein an annular engaging groove is formed at a junction of the connecting sleeve portion and the meshing portion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921087797.8U CN210290656U (en) | 2019-07-12 | 2019-07-12 | Transmission torque gear with anti-crack function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921087797.8U CN210290656U (en) | 2019-07-12 | 2019-07-12 | Transmission torque gear with anti-crack function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210290656U true CN210290656U (en) | 2020-04-10 |
Family
ID=70102191
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921087797.8U Active CN210290656U (en) | 2019-07-12 | 2019-07-12 | Transmission torque gear with anti-crack function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210290656U (en) |
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2019
- 2019-07-12 CN CN201921087797.8U patent/CN210290656U/en active Active
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