CN216758455U - Spline thermal expansion mandrel for turning half axle gear - Google Patents
Spline thermal expansion mandrel for turning half axle gear Download PDFInfo
- Publication number
- CN216758455U CN216758455U CN202220336515.9U CN202220336515U CN216758455U CN 216758455 U CN216758455 U CN 216758455U CN 202220336515 U CN202220336515 U CN 202220336515U CN 216758455 U CN216758455 U CN 216758455U
- Authority
- CN
- China
- Prior art keywords
- auxiliary
- shaft
- fixing bolt
- shaft sleeve
- shaft body
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Shafts, Cranks, Connecting Bars, And Related Bearings (AREA)
Abstract
The utility model provides a spline thermal expansion mandrel for turning a half axle gear, which relates to the technical field of mandrels and comprises: a shaft sleeve and a fixing part; a shaft body is inserted in the shaft sleeve; the axis body is cylindrical structure, and the head end of axis body is through the processing of polishing. Because of two auxiliary rods all link to each other with the recess is pegged graft, and adjust well with the screw hole on the connecting seat when the auxiliary rod links to each other with the recess is pegged graft, and the torsion bearing structure behind axle sleeve and the shaft body connection has been constituteed to the auxiliary rod, thereby on the one hand, can bear the torsion of axle sleeve and axis body, on the other hand, the convenience when fixing bolt and connecting seat are connected can be improved, it is relatively poor to have solved the fixed fastness of current device, mainly because fixing bolt leads to because the easy not hard up reason of fixing bolt, and the great problem of fixing bolt atress under the torsion effect of current device.
Description
Technical Field
The utility model relates to the technical field of mandrels, in particular to a spline thermal expansion mandrel for turning a half axle gear.
Background
With the increase of the production level of factories, the requirements for the use of related tools are continuously increased, and the spline thermal expansion mandrel is also produced correspondingly at present.
However, for the conventional spline thermal expansion mandrel, firstly, the fixing firmness of the conventional device is poor, mainly due to the reason that the fixing bolt is easy to loosen; secondly, the existing device has larger stress on the fixing bolt under the action of torque force.
SUMMERY OF THE UTILITY MODEL
In view of the above, the utility model provides a spline thermal expansion mandrel for turning a half axle gear, which is provided with an auxiliary seat, wherein the auxiliary seat is welded on a shaft sleeve and is in abutting contact with the head end of a fixing bolt through the arrangement of the auxiliary seat, and the auxiliary seat forms an abutting type anti-loosening structure of the fixing bolt, so that the loosening probability of the fixing bolt can be reduced;
still have the auxiliary rod, through the setting of auxiliary rod, on the one hand, can bear the torsion of axle sleeve and axis body, on the other hand can improve the convenience when fixing bolt and connecting seat are connected.
The utility model provides a spline thermal expansion mandrel for turning a half axle gear, which specifically comprises: a shaft sleeve and a fixing part; a shaft body is inserted in the shaft sleeve; the shaft body is of a cylindrical structure, the head end of the shaft body is subjected to polishing treatment, and the head end of the shaft body is of a conical structure after polishing treatment; the fixing part comprises a seat body, a fixing bolt, a connecting seat and an auxiliary seat, and the seat body is welded on the shaft body.
Optionally, the shaft sleeve is provided with a groove in an annular array shape, the inner diameter of the shaft sleeve is slightly smaller than the outer diameter of the shaft body, and the shaft sleeve and the shaft body are elastically clamped after the shaft body is inserted into the shaft sleeve.
Optionally, three auxiliary grooves are formed in the shaft body in a linear array shape, the three auxiliary grooves are all in an annular groove-shaped structure, and the three auxiliary grooves jointly form a friction force enhancing structure between the shaft sleeve and the shaft body.
Optionally, the seat body is provided with six fixing bolts in an annular array shape, the shaft sleeve is welded with the connecting seat, and the six fixing bolts are all in threaded connection with the connecting seat.
Optionally, two auxiliary rods are symmetrically welded on the seat body, and both the two auxiliary rods are of cylindrical rod-shaped structures; the head ends of the two auxiliary rods are both subjected to polishing treatment, and the head ends of the two auxiliary rods are both of a hemispherical structure after the polishing treatment; two auxiliary rods are all connected with the grooves in an inserting mode, after the auxiliary rods are connected with the grooves in an inserting mode, the fixing bolts are aligned with the threaded holes in the connecting seat, and the auxiliary rods form a torsion bearing structure after the shaft sleeve and the shaft body are connected.
Optionally, the shaft sleeve is welded with an auxiliary seat, the auxiliary seat is in abutting contact with the head end of the fixing bolt, and the auxiliary seat forms an abutting type anti-loosening structure of the fixing bolt.
Advantageous effects
Through the arrangement of the fixing part, firstly, two auxiliary rods are symmetrically welded on the seat body and are of cylindrical rod-shaped structures; the head ends of the two auxiliary rods are both subjected to polishing treatment, and the head ends of the two auxiliary rods are both of a hemispherical structure after the polishing treatment; the two auxiliary rods are connected with the groove in an inserting mode, the fixing bolt is aligned to the threaded hole in the connecting seat after the auxiliary rods are connected with the groove in the inserting mode, and the auxiliary rods form a torsion bearing structure after the shaft sleeve and the shaft body are connected, so that on one hand, torsion of the shaft sleeve and the shaft body can be borne, and on the other hand, convenience in connection of the fixing bolt and the connecting seat can be improved;
secondly, because of the welding has supplementary seat on the axle sleeve, and supplementary seat supports tight contact with fixing bolt's head end to supplementary seat has constituteed fixing bolt's the tight formula of supporting anti-loosening structure, thereby can reduce fixing bolt's not hard up probability.
Through the setting in auxiliary tank, because of being linear array form on the axis body and having seted up three auxiliary tank, and three auxiliary tank is annular groove-shaped structure to three auxiliary tank has constituteed the frictional force reinforcing structure between axle sleeve and the axis body jointly, thereby can improve the stability of connecting between axle sleeve and the axis body.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings of the embodiments will be briefly described below.
The drawings in the following description relate to some embodiments of the utility model only and are not intended to limit the utility model.
In the drawings:
fig. 1 is a schematic axial view of the present invention.
Fig. 2 is a schematic front view of the present invention.
Fig. 3 is a partially cut-away schematic axial view of the present invention.
Fig. 4 is an enlarged schematic view of fig. 3 a according to the present invention.
List of reference numerals
1. A shaft sleeve; 101. a groove; 2. a shaft body; 201. an auxiliary groove; 3. a fixed part; 301. a base body; 302. fixing the bolt; 303. a connecting seat; 304. an auxiliary seat; 305. an auxiliary lever.
Detailed Description
In order to make the objects, aspects and advantages of the embodiments of the present invention more apparent, the embodiments of the present invention will be described in detail with reference to the accompanying drawings. Unless otherwise indicated, terms used herein have the ordinary meaning in the art. Like reference symbols in the various drawings indicate like elements.
Example (b): please refer to fig. 1 to fig. 4:
the utility model provides a spline thermal expansion mandrel for turning a half axle gear, which comprises: a shaft sleeve 1 and a fixing part 3;
a shaft body 2 is inserted in the shaft sleeve 1;
the fixing portion 3 is composed of a base 301, a fixing bolt 302, a connecting base 303 and an auxiliary base 304, and the base 301 is welded on the shaft body 2.
In addition, according to the embodiment of the present invention, as shown in fig. 3, the shaft body 2 is a cylindrical structure, the head end of the shaft body 2 is polished, and the head end of the shaft body 2 is a tapered structure after polishing, so that the convenience of inserting between the shaft body 2 and the shaft sleeve 1 can be improved.
In addition, according to the embodiment of the present invention, as shown in fig. 3, the shaft sleeve 1 is provided with the grooves 101 in an annular array, the inner diameter of the shaft sleeve 1 is slightly smaller than the outer diameter of the shaft body 2, and after the shaft body 2 is inserted into the shaft sleeve 1, the shaft sleeve 1 and the shaft body 2 are elastically clamped, so that the shaft sleeve 1 and the shaft body 2 are auxiliary fixed.
In addition, according to the embodiment of the present invention, as shown in fig. 3, three auxiliary grooves 201 are formed in the shaft body 2 in a linear array, each of the three auxiliary grooves 201 is in an annular groove-shaped structure, and the three auxiliary grooves 201 jointly form a friction force enhancing structure between the shaft sleeve 1 and the shaft body 2, so that the stability of the connection between the shaft sleeve 1 and the shaft body 2 can be improved.
In addition, according to the embodiment of the present invention, as shown in fig. 3, six fixing bolts 302 are arranged on the seat body 301 in an annular array, the connecting seat 303 is welded on the shaft sleeve 1, and the six fixing bolts 302 are all in threaded connection with the connecting seat 303, so that the shaft sleeve 1 and the shaft body 2 can be fixed in an auxiliary manner.
In addition, according to the embodiment of the present invention, as shown in fig. 3, two auxiliary rods 305 are symmetrically welded on the seat body 301, and both the two auxiliary rods 305 are of a cylindrical rod-shaped structure; the head ends of the two auxiliary rods 305 are both polished, and after polishing, the head ends of the two auxiliary rods 305 are both of a hemispherical structure; two auxiliary rod 305 all link to each other with recess 101 grafting, and adjust well when auxiliary rod 305 links to each other with recess 101 grafting back fixing bolt 302 and the screw hole on the connecting seat 303 to auxiliary rod 305 has constituteed the torsion bearing structure after axle sleeve 1 and the connection of axis body 2, thereby on the one hand, can bear the torsion of axle sleeve 1 and axis body 2, and on the other hand can improve the convenience when fixing bolt 302 and connecting seat 303 are connected.
In addition, according to the embodiment of the present invention, as shown in fig. 2, the auxiliary seat 304 is welded on the shaft sleeve 1, the auxiliary seat 304 is in abutting contact with the head end of the fixing bolt 302, and the auxiliary seat 304 constitutes an abutting anti-loosening structure of the fixing bolt 302, so as to reduce the loosening probability of the fixing bolt 302.
The specific use mode and function of the embodiment are as follows:
when in connection, the shaft body 2 is firstly inserted into the shaft sleeve 1, at this time, as the shaft body 2 is of a cylindrical structure, the head end of the shaft body 2 is subjected to polishing treatment, and the head end of the shaft body 2 is of a conical structure after polishing treatment, the convenience of splicing between the shaft body 2 and the shaft sleeve 1 can be improved; the shaft sleeve 1 is provided with the grooves 101 in an annular array shape, the inner diameter of the shaft sleeve 1 is slightly smaller than the outer diameter of the shaft body 2, and the shaft sleeve 1 and the shaft body 2 are elastically clamped after the shaft body 2 is inserted into the shaft sleeve 1, so that the shaft sleeve 1 and the shaft body 2 are fixed in an auxiliary manner;
meanwhile, two auxiliary rods 305 are symmetrically welded on the seat body 301, and the two auxiliary rods 305 are both in a cylindrical rod-shaped structure; the head ends of the two auxiliary rods 305 are both polished, and after polishing, the head ends of the two auxiliary rods 305 are both of a hemispherical structure; the two auxiliary rods 305 are connected with the groove 101 in an inserted manner, when the auxiliary rods 305 are connected with the groove 101 in an inserted manner, the fixing bolt 302 is aligned with the threaded hole in the connecting seat 303, and the auxiliary rods 305 form a torsion bearing structure after the shaft sleeve 1 and the shaft body 2 are connected, so that on one hand, the torsion of the shaft sleeve 1 and the shaft body 2 can be borne, and on the other hand, the convenience in connection of the fixing bolt 302 and the connecting seat 303 can be improved;
after the insertion, the shaft sleeve 1 and the shaft body 2 can be fixed through the threaded connection of the fixing bolt 302 and the connecting seat 303.
Finally, it should be noted that, when describing the positions of the components and the matching relationship therebetween, the present invention is usually illustrated by one/a pair of components, however, it should be understood by those skilled in the art that such positions, matching relationship, etc. are also applicable to other/other pairs of components.
The above description is intended to be illustrative of the present invention and not to limit the scope of the utility model, which is defined by the claims appended hereto.
Claims (6)
1. A spline thermal expansion mandrel for turning a side gear, comprising: a shaft sleeve (1) and a fixing part (3); a shaft body (2) is inserted in the shaft sleeve (1); the shaft body (2) is of a cylindrical structure, the head end of the shaft body (2) is polished, and the head end of the shaft body (2) is of a conical structure after polishing; the fixing part (3) is composed of a base body (301), a fixing bolt (302), a connecting seat (303) and an auxiliary seat (304), and the base body (301) is welded on the shaft body (2).
2. The spline thermal expansion mandrel for side gear turning according to claim 1, wherein: the shaft sleeve (1) is provided with grooves (101) in an annular array shape, the inner diameter of the shaft sleeve (1) is slightly smaller than the outer diameter of the shaft body (2), and the shaft sleeve (1) and the shaft body (2) are elastically clamped after the shaft body (2) is inserted into the shaft sleeve (1).
3. The spline thermal expansion mandrel for side gear turning according to claim 1, wherein: three auxiliary groove (201) have been seted up to linear array form on axis body (2), and three auxiliary groove (201) are annular groove-shaped structure to three auxiliary groove (201) have constituteed the frictional force reinforcing structure between axle sleeve (1) and axis body (2) jointly.
4. The spline thermal expansion mandrel for side gear turning according to claim 1, wherein: six fixing bolt (302) of annular array form are gone up in pedestal (301), and the welding has connecting seat (303) on axle sleeve (1) to six fixing bolt (302) all with connecting seat (303) threaded connection.
5. The spline thermal expansion mandrel for side gear turning according to claim 1, wherein: two auxiliary rods (305) are symmetrically welded on the base body (301), and the two auxiliary rods (305) are both of cylindrical rod-shaped structures; the head ends of the two auxiliary rods (305) are both polished, and the head ends of the two auxiliary rods (305) are both of a hemispherical structure after being polished; two auxiliary rods (305) are connected with the groove (101) in an inserting mode, when the auxiliary rods (305) are connected with the groove (101) in the inserting mode, the fixing bolts (302) are aligned to threaded holes in the connecting seat (303), and the auxiliary rods (305) form a torsion bearing structure after the shaft sleeve (1) and the shaft body (2) are connected.
6. The spline thermal expansion mandrel for side gear turning according to claim 1, wherein: the shaft sleeve (1) is welded with an auxiliary seat (304), the auxiliary seat (304) is in abutting contact with the head end of the fixing bolt (302), and the auxiliary seat (304) forms an abutting type anti-loosening structure of the fixing bolt (302).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220336515.9U CN216758455U (en) | 2022-02-19 | 2022-02-19 | Spline thermal expansion mandrel for turning half axle gear |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220336515.9U CN216758455U (en) | 2022-02-19 | 2022-02-19 | Spline thermal expansion mandrel for turning half axle gear |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216758455U true CN216758455U (en) | 2022-06-17 |
Family
ID=81956100
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220336515.9U Active CN216758455U (en) | 2022-02-19 | 2022-02-19 | Spline thermal expansion mandrel for turning half axle gear |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216758455U (en) |
-
2022
- 2022-02-19 CN CN202220336515.9U patent/CN216758455U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP2002527696A (en) | Integrated screw connection of two metal tubes | |
| CN216758455U (en) | Spline thermal expansion mandrel for turning half axle gear | |
| US20040037633A1 (en) | Heavy-duty coupling for tool holder arms of modular design | |
| JP2697878B2 (en) | Connecting device for two mechanical parts | |
| CN210849706U (en) | Polishing arm | |
| CN210600113U (en) | Shaft sleeve clamping structure | |
| CN218625127U (en) | Coupling for connecting rotating shaft and synchronizing wheel | |
| US6463828B1 (en) | Expansion engagement crank assembly | |
| CN201447270U (en) | Thread wheel of paying-off and taking-up thread for spinning machine | |
| CN115815634A (en) | Step slender shaft machining tool and machining process thereof | |
| CN1068101C (en) | Axle fixing structure | |
| CN113089935A (en) | Combined sleeve for butt joint of reinforcing steel bars | |
| CN220302574U (en) | Shaft structure with torque shaft positioning function | |
| CN217192660U (en) | Fixing assembly for machining valve body accessories | |
| CN211501503U (en) | Crankshaft of RV-10C speed reducer | |
| CN218283748U (en) | Motor and main shaft connecting mechanism | |
| CN221158628U (en) | Jacking tool for horizontal lathe | |
| CN220279431U (en) | Clamping roller connection structure | |
| CN214274276U (en) | Sectional type long shaft connecting structure | |
| CN113928405B (en) | Steering tubular assembly capable of being compressed in collision mode | |
| CN216045074U (en) | Relay shaft | |
| CN220769991U (en) | Shaft sleeve group | |
| CN219623035U (en) | Connector of support | |
| CN219413229U (en) | Main shaft structure convenient to processing | |
| CN219197852U (en) | Reaming hole bolt |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |