CN216010382U - Grease injection device for injection molding intermediate shaft - Google Patents
Grease injection device for injection molding intermediate shaft Download PDFInfo
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- CN216010382U CN216010382U CN202121416180.3U CN202121416180U CN216010382U CN 216010382 U CN216010382 U CN 216010382U CN 202121416180 U CN202121416180 U CN 202121416180U CN 216010382 U CN216010382 U CN 216010382U
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- gear
- oiling
- wall
- oil injection
- gear shaft
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Abstract
The utility model discloses an injection molding intermediate shaft grease injection device which comprises a support, and a gear shaft assembly oil injection mechanism and a gear pipe assembly oil injection mechanism which are arranged on the support, wherein the gear shaft assembly oil injection mechanism comprises a gear shaft assembly oil injection tool shell and a gear shaft outer wall oil injection clamp, and the gear pipe assembly oil injection mechanism comprises a gear pipe assembly oil injection tool shell and a gear pipe inner wall oil injection clamp. According to the special structure of the spline and the spline sleeve, the two oil injection clamps adopt matched profiling design, and meanwhile, the surfaces of the tooth sides of the clamps are fully distributed with uniform oil injection holes, so that grease is uniformly distributed on the surface of a grease functional area of a part to form an oil film. Moreover, the device has the advantages of simple structure, convenient operation, automatic oil injection through the sensor and the like.
Description
Technical Field
The utility model relates to auxiliary equipment for middle shaft assembly, in particular to a grease injection device for an injection molding middle shaft.
Background
The steering intermediate shaft is used as a key component for starting and stopping in an automobile steering system, and plays a role in filtering jolt and collapsing in case of accidents in the whole system. Referring to fig. 1, for the injection molded intermediate shaft 1, the injection molded layer 3 (spline) on the gear shaft assembly 2 and the inner part (spline housing) of the gear pipe assembly 4 slide, and grease lubricates in the sliding process to reduce wear and prolong the service life of the product.
In the first step of the injection molding of the intermediate shaft assembly, it is necessary to grease the shaft and the tube separately (see areas a and B in fig. 1, respectively, for the grease covered areas) to reduce the friction losses between the sliding pairs. Tests prove that the uneven grease in the functional area can cause the abrasion of an injection layer coated with the plastic of the injection-molded intermediate shaft in the working process to be too fast, finally the clearance of a sliding pair is enlarged, the use process of a product is abnormal, and customers complain about the situation.
In the production and assembly process, grease is filled to meet the requirements of a pipe grease functional area and a shaft grease functional area, however, no special equipment is provided for effectively filling grease into a shaft and a pipe of an intermediate shaft, and the uniform coverage of an oil film cannot be ensured by the conventional manual grease filling means due to the special shape of the grease functional area (spline).
SUMMERY OF THE UTILITY MODEL
In order to solve the problems in the prior art, the utility model provides a grease injection device for an injection molding intermediate shaft, which can realize the uniformity of grease injection.
The utility model relates to an injection molding intermediate shaft grease injection device, which has the following specific structure:
the gear shaft assembly oiling mechanism comprises a gear shaft assembly oiling tool shell and a gear shaft outer wall oiling clamp, the upper end of the gear shaft assembly oiling tool shell is opened and is internally provided with a shaft hole, one side of the outer wall is provided with an oil inlet communicated with the shaft hole, the gear shaft outer wall oiling clamp is arranged in the shaft hole from the upper end opening, the gear shaft outer wall oiling clamp is of a cylindrical structure, the inner wall of the gear shaft outer wall oiling clamp is of a multi-tooth structure matched with a gear shaft spline, a plurality of oil injection holes communicated with the shaft hole are uniformly distributed on the tooth side, and the other side of the gear shaft assembly oiling tool shell is also provided with oil drainage holes communicated with the shaft hole;
gear pipe assembly oiling mechanism includes gear pipe assembly oiling tool housing and gear pipe inner wall oiling fixture, gear pipe assembly oiling tool housing upper end opening, establish the axle chamber in, gear pipe inner wall oiling fixture arranges the axle intracavity in from the upper end opening, gear pipe inner wall oiling fixture is cavity columnar structure, and the outer wall be have with gear pipe spline housing assorted multiple tooth structure and evenly laid a plurality of oil filler points on the tooth side, gear pipe assembly oiling tool housing bottom is equipped with the oil inlet and is linked together with gear pipe inner wall oiling fixture is inside, still be equipped with the draining hole that is linked together with the axle chamber on the gear pipe assembly oiling tool housing lateral wall.
And a gear shaft induction sensor is further arranged on the gear shaft assembly oil injection tool shell, and a trigger mechanism of the gear shaft assembly oil injection tool shell is upwards inserted from the bottom of the gear shaft outer wall oil injection clamp.
And a gear tube induction sensor is further arranged on the gear tube assembly oil injection tooling shell, and a trigger mechanism of the gear tube assembly oil injection tooling shell is transversely inserted into the shaft cavity.
The oil injection pump is communicated with an oil inlet of the gear shaft assembly oil injection tool shell and an oil inlet of the gear pipe assembly oil injection tool shell through pipelines.
The injection molding intermediate shaft grease injection device has the following beneficial effects that:
1. the structure is simple, the operation is convenient, and automatic oil injection can be realized through a sensor;
2. according to the special structure of the spline and the spline sleeve, the oil injection clamp adopts a matched profiling design, and oil injection holes are uniformly distributed on the surface of the tooth side of the clamp, so that oil is uniformly distributed on the surface of an oil functional area of a part to form an oil film;
3. compared with the traditional grease injection measure, the grease consumption can be saved by 30 percent. Because the oil film formed by the traditional non-profiling structure needs grease to fill about 2/3 of the space volume on two sides of the tooth shape, about 1.44g of grease is needed for 18 teeth, the profiling structure can realize that the grease is directly coated on the tooth side, and the actually measured grease amount is about 1 g.
Drawings
FIG. 1 is an exploded schematic view of an injection molded countershaft;
FIG. 2 is a schematic structural diagram of the injection molding intermediate shaft grease injection device of the utility model;
FIG. 3 is a schematic structural diagram of an oiling mechanism for a gear shaft assembly according to the present invention;
FIG. 4 is a cross-sectional view of the gear shaft assembly oiling mechanism of the present invention;
FIG. 5 is a schematic structural view of the fixture for oiling the outer wall of the gear shaft according to the present invention;
FIG. 6 is a schematic structural view of a tooth axis induction sensor of the present invention;
FIG. 7 is a schematic view of the gear shaft assembly oiling mechanism and the gear shaft assembly butt-joint oiling according to the present invention;
FIG. 8 is a cross-sectional view of the gear tube assembly oiling mechanism of the present invention;
FIG. 9 is a schematic structural view of the oil injection fixture for the inner wall of the gear tube of the present invention;
fig. 10 is a schematic view of the gear tube assembly oiling mechanism and the gear tube assembly butt-joint oiling mechanism of the present invention.
Detailed Description
The utility model further discloses an injection molding intermediate shaft grease injection device, which is combined with the drawings and the embodiment.
As shown in fig. 2 to 10, the injection molding intermediate shaft grease injection device of the present invention includes a bracket 10, and a gear shaft assembly grease injection mechanism 20 and a gear pipe assembly grease injection mechanism 30 provided on the bracket 10, wherein:
gear shaft assembly oiling mechanism 20 includes gear shaft assembly oiling tool housing 21 and gear shaft outer wall oiling fixture 22, gear shaft assembly oiling tool housing 21 upper end opening, be equipped with the shaft hole in, outer wall one side is equipped with the communicating oil inlet 23 in shaft hole, gear shaft outer wall oiling fixture 22 is arranged the shaft hole in (external diameter and shaft hole internal diameter clearance fit) from the upper end opening, gear shaft outer wall oiling fixture 22 is the tubular structure, and the inner wall be have with gear shaft spline assorted multiple tooth structure 221 (if 18 teeth etc.) and evenly laid a plurality of with the communicating oil filler point 222 in shaft hole on the flank, gear shaft assembly oiling tool housing 21's opposite side is then located to draining hole 25, also be linked together with the shaft hole. And, the upper end of the cylindrical structure of the gear shaft outer wall oiling clamp 22 is provided with a trumpet-shaped guide structure 223, so that the gear shaft assembly 2 can be conveniently inserted. In addition, a gear shaft induction sensor 24 (such as a balun contact induction sensor) is further arranged on the gear shaft assembly oiling tool housing 21, and the trigger mechanism 241 is inserted upwards from the bottom of the gear shaft outer wall oiling clamp 22. When the gear shaft assembly is inserted into the gear shaft outer wall oil injection clamp 22 downwards and triggers the gear shaft induction sensor 24, the gear shaft assembly 2 is prompted to be installed in place, and manual or automatic oil injection can be carried out.
The gear tube assembly oil injection mechanism 30 comprises a gear tube assembly oil injection tool shell 31 and a gear tube inner wall oil injection clamp 32, the upper end of the gear tube assembly oil injection tool shell 31 is open, an axle cavity is formed in the gear tube assembly oil injection tool shell, the gear tube inner wall oil injection clamp 32 is arranged in the axle cavity from the upper end opening, the gear tube inner wall oil injection clamp 32 is of a hollow columnar structure, the outer wall of the gear tube assembly oil injection tool shell is provided with a multi-tooth structure 321 matched with a gear tube spline sleeve, a plurality of oil injection holes 322 are uniformly distributed on the tooth side, the bottom of the gear tube assembly oil injection tool shell 31 is provided with an oil inlet 33 and is communicated with the inside of the gear tube inner wall oil injection clamp 32 from the bottom, an oil drainage hole 34 communicated with the axle cavity is further formed in the side wall of the gear tube assembly oil injection tool shell 31, the upper end of the gear tube inner wall oil injection clamp 32 is of a guide structure 323 similar to facilitate sleeving of the gear tube assembly. In addition, a gear tube induction sensor 35 (also can adopt a contact induction sensor such as a balun sensor) is also arranged on the gear tube assembly oiling tool shell 31, and a trigger mechanism of the gear tube assembly oiling tool shell is transversely inserted into the shaft cavity. When the gear pipe assembly is downwards sleeved on the gear pipe inner wall oil injection clamp 32 and triggers the gear pipe induction sensor, the gear pipe assembly is prompted to be installed in place, and oil can be injected.
The grease injection device for the injection molding intermediate shaft further comprises an oil drum 40 with an oil injection pump, wherein the oil drum is respectively communicated with the oil inlet 23 of the gear shaft assembly grease injection tool shell 21 and the oil inlet 33 of the gear pipe assembly grease injection tool shell 31 through pipelines, when signals of the gear shaft induction sensor 24 or/and the gear pipe induction sensor 35 are received, automatic grease injection can be carried out, grease enters from the corresponding oil inlets 23 and 33 through pressurization and is uniformly extruded to the corresponding tooth sides of the gear shaft or/and the gear pipe assemblies 2 and 4 through the grease injection holes 222 and 322, and a uniform oil film is formed. After long-time work, the redundant grease is directly discharged into a designated collecting device through the oil pipes connected with the oil drainage holes 25 and 34, and the recycling of the grease is realized.
However, those skilled in the art should realize that the above embodiments are illustrative only and not limiting to the present invention, and that changes and modifications to the above described embodiments are intended to fall within the scope of the appended claims, provided they fall within the true spirit of the present invention.
Claims (4)
1. The utility model provides a fat device is annotated to jackshaft that moulds plastics which characterized in that: the gear shaft assembly oiling mechanism comprises a gear shaft assembly oiling tool shell and a gear shaft outer wall oiling clamp, the upper end of the gear shaft assembly oiling tool shell is opened and is internally provided with a shaft hole, one side of the outer wall is provided with an oil inlet communicated with the shaft hole, the gear shaft outer wall oiling clamp is arranged in the shaft hole from the upper end opening, the gear shaft outer wall oiling clamp is of a cylindrical structure, the inner wall of the gear shaft outer wall oiling clamp is of a multi-tooth structure matched with a gear shaft spline, a plurality of oil injection holes communicated with the shaft hole are uniformly distributed on the tooth side, and the other side of the gear shaft assembly oiling tool shell is also provided with oil drainage holes communicated with the shaft hole;
gear pipe assembly oiling mechanism includes gear pipe assembly oiling tool housing and gear pipe inner wall oiling fixture, gear pipe assembly oiling tool housing upper end opening, establish the axle chamber in, gear pipe inner wall oiling fixture arranges the axle intracavity in from the upper end opening, gear pipe inner wall oiling fixture is cavity columnar structure, and the outer wall be have with gear pipe spline housing assorted multiple tooth structure and evenly laid a plurality of oil filler points on the tooth side, gear pipe assembly oiling tool housing bottom is equipped with the oil inlet and is linked together with gear pipe inner wall oiling fixture is inside, still be equipped with the draining hole that is linked together with the axle chamber on the gear pipe assembly oiling tool housing lateral wall.
2. An injection molded intermediate shaft grease injection device according to claim 1, wherein: and a gear shaft induction sensor is further arranged on the gear shaft assembly oil injection tool shell, and a trigger mechanism of the gear shaft assembly oil injection tool shell is upwards inserted from the bottom of the gear shaft outer wall oil injection clamp.
3. An injection molded intermediate shaft grease injection device according to claim 1, wherein: and a gear tube induction sensor is further arranged on the gear tube assembly oil injection tooling shell, and a trigger mechanism of the gear tube assembly oil injection tooling shell is transversely inserted into the shaft cavity.
4. An injection molded intermediate shaft grease injection device according to claim 1, wherein: the oil injection pump is communicated with an oil inlet of the gear shaft assembly oil injection tool shell and an oil inlet of the gear pipe assembly oil injection tool shell through pipelines.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121416180.3U CN216010382U (en) | 2021-06-24 | 2021-06-24 | Grease injection device for injection molding intermediate shaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121416180.3U CN216010382U (en) | 2021-06-24 | 2021-06-24 | Grease injection device for injection molding intermediate shaft |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216010382U true CN216010382U (en) | 2022-03-11 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121416180.3U Active CN216010382U (en) | 2021-06-24 | 2021-06-24 | Grease injection device for injection molding intermediate shaft |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216010382U (en) |
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2021
- 2021-06-24 CN CN202121416180.3U patent/CN216010382U/en active Active
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