CN211039264U - Main pump flange dish device - Google Patents
Main pump flange dish device Download PDFInfo
- Publication number
- CN211039264U CN211039264U CN201921563761.2U CN201921563761U CN211039264U CN 211039264 U CN211039264 U CN 211039264U CN 201921563761 U CN201921563761 U CN 201921563761U CN 211039264 U CN211039264 U CN 211039264U
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- Prior art keywords
- main pump
- flange plate
- nut
- flange
- ring flange
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Abstract
The utility model discloses a main pump flange dish device relates to the excavator main pump and makes technical field, and main pump flange dish device includes ring flange body, ring flange body is equipped with the annular working face of being connected with the outer terminal surface of bell housing, ring flange body distributes on the circumference of annular working face one side dorsad has many double-screw bolts, every all wear to be equipped with a guide bracket through the screw thread on the double-screw bolt, the double-screw bolt all is equipped with the nut in the both sides of guide bracket be equipped with a plurality of through-holes on the guide bracket. Compare prior art, the utility model discloses the cost is big when can solving current to the main pump ring flange and the problem that appears the potential safety hazard easily when forgetting to place spacing tool between bell housing and ring flange with inefficiency.
Description
Technical Field
The utility model belongs to the technical field of the excavator main pump manufacturing technology and specifically relates to a ring flange for being connected excavator main pump and engine flywheel.
Background
As shown in fig. 1, a main pump 20 of an excavator is installed by adopting a flange plate 1, the main pump 20 is installed on the flange plate 1, then two parts of a coupler 30 are respectively installed on a main pump spline shaft and an engine flywheel, finally the two parts of the coupler 30 are aligned, then the main pump 20 is lifted close to a flywheel housing 40 of the engine, and the two parts of the coupler 30 are connected and the flange plate 1 is connected with the flywheel housing 40 of the engine through bolts in sequence. Usually, the weight of a main pump and a flange plate of a medium-large hydraulic excavator generally exceeds 150kg, the flange plate is usually required to be disassembled and assembled to maintain or replace a coupler and disconnect the coupler for troubleshooting in the working process, and the method comprises the following steps: earlier lift by crane the main pump through lifting device and be parallel state, loosen the bolt on the ring flange circumference, break away from the bell housing through manual with the ring flange again to place stop tool between bell housing and ring flange, prevent that the ring flange sudden return when personnel carry out the dismouting operation to the coupling from causing extruded risk to the operator, make the operator carry out safe operation in the space between bell housing and ring flange. The operation method has the following problems in the use process: 1. the operation is carried out by adopting the cooperative operation of operators and hoisting equipment, the operators are not less than 2 persons, the efficiency is low, the use time is long, and the maintenance or troubleshooting cost is high; 2. after the flange plate is separated from the flywheel shell, a limiting tool is required to be placed between the flywheel shell and the flange plate, and potential safety hazards exist when an operator forgets to place the limiting tool.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that a main pump flange dish device is provided to solve the problem that the current expense is big when maintaining the main pump flange dish, inefficiency and if forget and appear the potential safety hazard easily when placing spacing tool between bell housing and ring flange.
The utility model provides a technical scheme that technical problem adopted does: the main pump flange plate device comprises a flange plate body, wherein the flange plate body is provided with an annular working surface connected with the outer end surface of a flywheel shell, a plurality of studs are distributed on the circumference of the flange plate body back to one side of the annular working surface, each stud is provided with a guide support in a penetrating mode through threads, nuts are arranged on two sides of each guide support through the studs, and a plurality of through holes are formed in the guide supports.
In the above technical solution of the main pump flange device, a more specific technical solution may also be: the guide support comprises a nut part which is arranged on the stud in a penetrating way through a round through hole and a bending connecting part which is connected with the nut part and extends to the annular working surface of the flange plate body; the through holes are formed in the positions, close to the annular working surface of the flange plate body, of the bending connecting parts.
Further: the two nuts are respectively adjacent to two ends of the nut portion, the nut near one end of the flange plate body is a front nut, and the nut far away from one end of the flange plate body is a rear nut.
Further: the central line of the through hole is perpendicular to the central line of the stud.
Further: the number of the studs is two.
Since the technical scheme is used, compared with the prior art, the utility model following beneficial effect has: the flange plate body of the main pump flange plate device is provided with a plurality of studs on the circumference of one side back to the annular working surface, each stud is provided with a guide support in a penetrating way through threads, nuts are arranged on two sides of the guide support of each stud, and the guide support is provided with a plurality of through holes; when the flywheel is installed, the guide bracket is connected with the protruding parts on the two sides of the flywheel shell through bolts penetrating through the through holes; when the flange body needs to be disassembled, the nuts on the studs can be rotated to enable the flange body to be separated from the flywheel shell of the engine until the flange body is separated from the flywheel shell of the engine to the maximum distance, then the two nuts close to the side of the flange body are respectively rotated to enable the nuts to be abutted against the nut portions, the flange body is fastened and prevented from being restored to extrude the operation, and at the moment, the shaft coupler can be maintained or troubleshooting can be carried out between the flange body and the flywheel shell of the engine; after the maintenance or troubleshooting is finished, the guide support is pushed to move towards the end far away from the flange plate body along the stud by rotating the nut until the flange plate body is in butt joint with the flywheel shell, and the bolt on the circumference of the flange plate body is screwed; whole operation process all can be accomplished by oneself alone, need not lifting device, and is efficient, short-term, and the expense is low, has eliminated the ring flange body return and has caused extruded potential safety hazard to the operator.
Drawings
Fig. 1 is a schematic view showing the mounting of a conventional flange device for a main pump.
Fig. 2 is a schematic structural diagram of an embodiment of the present invention.
Detailed Description
The invention is described in detail below with reference to the accompanying drawings:
as shown in fig. 1, the flywheel housing 40 of the engine is provided with two protrusions 401 on the circumference of the flywheel housing 40.
As shown in fig. 2, the main pump flange plate device includes a flange plate body 1, the flange plate body 1 is provided with an annular working surface 1a connected with the outer end surface of the flywheel housing, two studs 2 are distributed on the circumference of the flange plate body 1 of this embodiment on the side facing away from the annular working surface 1a, each stud 2 is provided with a guide bracket 3 through a thread, the stud 2 is provided with a nut on both sides of the guide bracket, the guide bracket 3 of this embodiment includes a nut portion 3-1 through a circular through hole, which is mounted on the stud 2, and a bent connecting portion 3-2 connected with the nut portion 3-1 and extending to the annular working surface 1a of the flange plate body 1, and the two bent connecting portions 3-2 correspond to two protruding portions 401 on the circumference of the flywheel housing 40, respectively; two nuts on two sides of a guide support 3 on the stud 2 are respectively adjacent to two ends of a nut part 3-1, the nut near one end of the flange plate body 1 is a front nut 4, and the nut far away from one end of the flange plate body 1 is a rear nut 5; the guide support 3 is provided with a plurality of through holes, the through holes are formed in the position, close to the annular working surface 1a of the flange body 1, of the bending connecting portion 3-2, four through holes are formed in the position, close to the annular working surface 1a of the flange body 1, of the bending connecting portion 3-2, and the center lines of the four through holes of the appliance are perpendicular to the center line of the stud 2.
During installation, the guide support is firstly penetrated and installed on four through holes of the 3-bending connecting parts 3-2 of the guide supports through a plurality of bolts, so that the bending connecting parts 3-2 of the two guide supports 3 are respectively connected with the convex parts 401 at two sides of the flywheel shell 40 of the engine, and then the front nuts 4 and the rear nuts 5 at two ends of the nut part 3-1 are respectively screwed towards two ends of the nut part 3-1.
When the flange body 1 needs to be disassembled, firstly, bolts on the circumference of the flange body 1 are loosened, front nuts 4 on two studs 2 are screwed to one end close to the flange body 1, then two rear nuts 5 are respectively rotated to move towards one side of the flange body 1, so that the flange body 1 is separated from a flywheel shell 40 of an engine until the straight flange body 1 is separated from the flywheel shell 40 of the engine to the maximum distance, then two front nuts 4 are respectively rotated so that the front nuts 4 are abutted against nut parts 3-1, the flange body 1 is fastened and prevented from being extruded when being returned to the original position, and at the moment, the coupling 30 can be maintained or troubleshooting between the flange body 1 and the flywheel shell 40 of the engine; after the maintenance or troubleshooting is finished, respectively rotating two rear nuts 5 to move to the end, far away from the flange plate body 1, of the stud 2, respectively rotating a front nut 4 to push a nut portion 3-1 of the guide support to move to the end, far away from the flange plate body 1, of the stud 2 until the flange plate body 1 is in butt joint with the flywheel shell 40, and screwing bolts on the circumference of the flange plate body 1; whole operation process all can be accomplished by oneself alone, need not lifting device, and is efficient, short-term, and the expense is low, has eliminated flange plate body 1 return and has caused extruded potential safety hazard to the operator.
Claims (5)
1. The utility model provides a main pump ring flange device, includes the ring flange body, the ring flange body is equipped with the annular working face of being connected with the outer terminal surface of bell housing, its characterized in that: the flange plate body is distributed with a plurality of studs on the circumference of one side back to the annular working surface, each stud is provided with a guide support in a penetrating mode through threads, nuts are arranged on two sides of each guide support, and a plurality of through holes are formed in each guide support.
2. The main pump flange plate apparatus of claim 1, wherein: the guide support comprises a nut part which is arranged on the stud in a penetrating way through a round through hole and a bending connecting part which is connected with the nut part and extends to the annular working surface of the flange plate body; the through holes are formed in the positions, close to the annular working surface of the flange plate body, of the bending connecting parts.
3. The main pump flange plate apparatus of claim 2, wherein: the two nuts are respectively adjacent to two ends of the nut portion, the nut near one end of the flange plate body is a front nut, and the nut far away from one end of the flange plate body is a rear nut.
4. A main pump flange plate apparatus according to claim 1, 2 or 3, wherein: the central line of the through hole is perpendicular to the central line of the stud.
5. The main pump flange plate apparatus of claim 4, wherein: the number of the studs is two.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921563761.2U CN211039264U (en) | 2019-09-19 | 2019-09-19 | Main pump flange dish device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921563761.2U CN211039264U (en) | 2019-09-19 | 2019-09-19 | Main pump flange dish device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211039264U true CN211039264U (en) | 2020-07-17 |
Family
ID=71567909
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921563761.2U Active CN211039264U (en) | 2019-09-19 | 2019-09-19 | Main pump flange dish device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211039264U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| USD1017382S1 (en) | 2022-05-04 | 2024-03-12 | Caterpillar Inc. | Flange |
-
2019
- 2019-09-19 CN CN201921563761.2U patent/CN211039264U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| USD1017382S1 (en) | 2022-05-04 | 2024-03-12 | Caterpillar Inc. | Flange |
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