CN220815915U - Transmission block for simulating engine to drive oil pump with rotor shaft - Google Patents
Transmission block for simulating engine to drive oil pump with rotor shaft Download PDFInfo
- Publication number
- CN220815915U CN220815915U CN202322124236.3U CN202322124236U CN220815915U CN 220815915 U CN220815915 U CN 220815915U CN 202322124236 U CN202322124236 U CN 202322124236U CN 220815915 U CN220815915 U CN 220815915U
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- rotor shaft
- transmission block
- oil pump
- block body
- hole
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- 230000005540 biological transmission Effects 0.000 title claims abstract description 57
- 230000002093 peripheral effect Effects 0.000 claims description 8
- 229910000639 Spring steel Inorganic materials 0.000 claims description 3
- 238000003754 machining Methods 0.000 claims 2
- 238000012360 testing method Methods 0.000 abstract description 14
- 230000002159 abnormal effect Effects 0.000 abstract description 3
- 238000000034 method Methods 0.000 abstract description 2
- 238000005261 decarburization Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000004088 simulation Methods 0.000 description 2
- 230000005856 abnormality Effects 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 238000007792 addition Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
Abstract
The utility model belongs to the technical field of test tools, and provides a transmission block for simulating an engine to drive an oil pump with a rotor shaft, which comprises a transmission block body, wherein one end of the transmission block body is provided with a connecting groove, the connecting groove is used for being connected with the tail end of the rotor shaft of the oil pump, the profile of the connecting groove comprises a circular arc section and a straight line section which are connected, when the tail end of the rotor shaft of the oil pump is connected in the connecting groove, a notch at the tail end of the rotor shaft is abutted against the connecting groove at the straight line section, the transmission block body is also provided with a connecting through hole, the connecting through hole is communicated with the connecting groove, the connecting through hole is coaxially arranged with the connecting groove, the connecting through hole is used for connecting a fastening piece, and one end of the fastening piece penetrates through and stretches out of the connecting through hole to be connected with a bolt hole on the rotor shaft. The utility model has the advantages that: the method reduces the matching contact area between the periphery of the rotor shaft and the transmission block, avoids abnormal eccentric wear of the rotor caused by unprocessed curves of the periphery wall of the tail end of the rotor shaft, improves the testing precision and reduces the testing cost.
Description
Technical Field
The utility model belongs to the technical field of test tools, and particularly relates to a transmission block for simulating an engine to drive an oil pump with a rotor shaft.
Background
The oil pump is used as a core part in an automobile engine, often the installation mode of the oil pump is designed by the boundary dimension of the engine of a main engine plant, and after the oil pump is designed and produced, the oil pump is usually subjected to simulation test, so that the oil pump can normally rotate to simulate the running state of the oil pump in the engine. Normally, the rotor shaft 2 of the oil pump 1 is provided with a linear notch 3 (as shown in fig. 1) at the outer periphery of the end of the rotor shaft after the production is completed, for mounting the engine sprocket, and the bolt hole 4 is also provided at one end of the rotor shaft 2, and the outer peripheral wall of the end of the rotor shaft 2 of the oil pump 1 is not finished after the actual production is completed.
In the practical installation and use of the oil pump, the oil pump is driven by an engine chain, in the simulation test, the rotor shaft of the oil pump is directly driven by the motor to rotate, as shown in fig. 2, a driving shaft 5 of the motor is in transmission connection with the rotor shaft 2 of the oil pump 1 through a transmission block 6, a through hole is formed in the transmission block 6 and is used for being matched with the rotor shaft 2 of the oil pump 1, but as the peripheral wall at the tail end of the rotor shaft 2 of the oil pump 1 is not finished, the coaxiality of the rotor shaft 2 and the through hole is poor after the rotor shaft 2 of the oil pump 1 is matched with the through hole in the transmission block 6, and offset abrasion can be generated at the tail end of the rotor shaft 2 in the test process.
Disclosure of utility model
The utility model aims to provide a transmission block for simulating an oil pump with a rotor shaft driven by an engine, which is changed from the original curved surface clearance fit between the transmission block and the rotor shaft to the end surface contact fit, so that the fit contact area between the periphery of the rotor shaft and the transmission block is reduced, the abnormal eccentric wear of the rotor caused by the unprocessed curve of the peripheral wall at the tail end of the rotor shaft is avoided, the testing precision is improved, and the testing cost is reduced.
The technical scheme adopted for solving the technical problems is as follows: a transmission block for simulating an engine driving an oil pump with a rotor shaft is proposed, comprising: the cylindrical transmission block body, the coaxial spread groove that is equipped with of axial one end of transmission block body, the spread groove is used for being connected with the rotor shaft end of oil pump, the spread groove inner peripheral wall include with the terminal periphery wall complex circular arc section of rotor shaft of oil pump and with locate the terminal periphery wall on plane matched with planar section of rotor shaft, the transmission block body still is equipped with the connection through-hole, the connection through-hole with the spread groove intercommunication, just the connection through-hole with the coaxial setting of spread groove, the connection through-hole is used for supplying the bolt to pass, and the rotor shaft end supports the tank bottom of spread groove, and the one end of bolt passes and stretches out the connection through-hole is connected with the bolt hole on the rotor shaft, and the bolt compresses tightly the axial other end of transmission block body.
Compared with the prior art, the utility model has the advantages that: according to the utility model, the connecting groove is arranged at one end of the transmission block body and is connected with the rotor shaft of the oil pump, so that the original curved surface clearance fit between the transmission block and the rotor shaft is changed into end surface contact fit, the fit contact area between the periphery of the rotor shaft and the transmission block is reduced, the abnormal eccentric wear of the rotor caused by the unprocessed curve of the peripheral wall at the tail end of the rotor shaft is avoided, the testing precision is improved, and the testing cost is reduced. The plane section of the connecting groove is matched with the notch of the rotor shaft, so that the positioning function is achieved, the rear part of the rotor cannot slide with the transmission block body under the condition of high-speed rotation, the transmission block body is connected with the fastener at the connecting through hole, one end of the fastener penetrates through the telescopic connecting through hole and is connected with the bolt hole on the rotor shaft, the connection and fixation function between the transmission block body and the rotor shaft is achieved, and the connection stability between the transmission block body and the rotor shaft is guaranteed.
In the transmission block for simulating the engine to drive the oil pump with the rotor shaft, the depth of the connecting groove is 3mm, and the contact area between the periphery of the rotor shaft and the connecting groove is reduced under the condition that the rotor shaft is connected and matched with the connecting groove.
In the transmission block for simulating the oil pump with the rotor shaft driven by the engine, the processing grooves are formed in the two ends of the plane section of the connecting groove, and the processing grooves are communicated with the connecting groove, so that the processing of the connecting groove is facilitated.
In the above-mentioned driving block for simulating an oil pump with a rotor shaft driven by an engine, the driving block body is made of spring steel, and has excellent metallurgical quality (high purity and uniformity), good surface quality (strict control of surface defects and decarburization), and precise shape and size.
In the above-mentioned a drive block for simulating engine drive takes oil pump of rotor shaft, the drive block body keep away from the one end circumference of spread groove is upwards equipped with two rotating blocks at intervals, two the rotating block is in same diameter, two the rotating block is used for with the drive shaft normal running fit of motor. The driving shaft of the motor drives the transmission block body to rotate, so that the rotor shaft of the oil pump is driven to rotate.
Drawings
Fig. 1 is a schematic structural view of a rotor shaft of an oil pump;
FIG. 2 is a simulated test device of an oil pump;
FIG. 3 is a schematic diagram of a transmission block body according to an embodiment of the present utility model;
Fig. 4 is a schematic structural diagram of a transmission block body according to an embodiment of the present utility model.
In the figure, 1, an oil pump; 2. a rotor shaft; 3. a notch; 4. bolt holes; 5. a drive shaft; 6. a rotating block; 7. a transmission block body; 8. a connecting groove; 9. a circular arc section; 10. a planar section; 11. a connecting through hole; 12. a processing groove; 13. and rotating the block.
Detailed Description
The following are specific embodiments of the present utility model and the technical solutions of the present utility model will be further described with reference to the accompanying drawings, but the present utility model is not limited to these embodiments.
As shown in fig. 3 and 4, a driving block for simulating an engine driving an oil pump with a rotor shaft according to the present utility model includes: the cylindrical transmission block body 7, the coaxial spread groove 8 that is equipped with of axial one end of transmission block body 7, spread groove 8 is used for being connected with the rotor shaft end of oil pump, the spread groove 8 inner peripheral wall includes with the terminal periphery wall complex circular arc section 9 of rotor shaft of oil pump and with locate the terminal periphery wall on the plane matched with planar section 10 of rotor shaft, transmission block body 7 still is equipped with connecting through-hole 11, connecting through-hole 11 and spread groove 8 intercommunication, and connecting through-hole 11 and connecting groove 8 coaxial setting, connecting through-hole 11 are used for supplying the bolt to pass, the rotor shaft end supports the tank bottom at connecting groove 8, the one end of bolt passes and stretches out connecting through-hole 11 and the epaxial bolt hole connection of rotor, the bolt compresses tightly at the axial other end of transmission block body 7.
According to the utility model, the connecting groove 8 is arranged at one end of the transmission block body 7 and is connected with the rotor shaft 2 of the oil pump 1, so that the original curved surface clearance fit between the transmission block and the rotor shaft 2 is changed into end surface contact fit, the fit contact area between the periphery of the rotor shaft 2 and the transmission block is reduced, the eccentric wear abnormality of the rotor caused by the unprocessed curve of the peripheral wall of the tail end of the rotor shaft 2 is avoided, the testing precision is improved, and the testing cost is reduced. The plane section 10 of the connecting groove 8 is matched with the notch 3 of the rotor shaft 2, and plays a role in positioning, in order to ensure that the rear part of the rotor cannot slide with the transmission block body 7 under high-speed rotation, the transmission block body 7 is connected with a fastening piece at the connecting through hole 11, one end of the fastening piece penetrates through the telescopic connecting through hole 11 and is connected with the bolt hole 4 on the rotor shaft 2, the function of connecting and fixing the transmission block body 7 and the rotor shaft 2 is played, and the stability of the connection between the transmission block body 7 and the rotor shaft 2 is ensured.
Further, the depth of the connecting groove 8 is 3mm, so that the contact area between the periphery of the rotor shaft 2 and the connecting groove 8 is reduced under the condition that the rotor shaft 2 is connected and matched with the connecting groove 8.
Further, the connecting groove 8 is located the both ends of plane section 10 and all is equipped with processing groove 12, and processing groove 12 and connecting groove 8 intercommunication make things convenient for the processing of connecting groove 8.
Further, the transmission block body 7 is a transmission block body made of spring steel, and has excellent metallurgical quality (high purity and uniformity), good surface quality (strict control of surface defects and decarburization), and accurate appearance and dimension.
Further, two rotating blocks 13 are circumferentially arranged at intervals at one end, far away from the connecting groove 8, of the transmission block body 7, the two rotating blocks 13 are located on the same diameter, and the two rotating blocks 13 are used for being in rotating fit with the driving shaft 5 of the motor. The driving shaft 5 of the motor drives the transmission block body 7 to rotate, so that the rotor shaft 2 of the oil pump 1 is driven to rotate.
The specific embodiments described herein are offered by way of example only. Those skilled in the art may make various modifications or additions to the described embodiments or substitutions thereof without departing from the scope of the utility model as defined.
Claims (5)
1. A drive block for simulating an engine driving an oil pump with a rotor shaft, comprising: the cylindrical transmission block body (7), its characterized in that, the axial one end of transmission block body (7) is coaxial to be equipped with spread groove (8), spread groove (8) are used for being connected with the rotor shaft end of oil pump, spread groove (8) inner peripheral wall include with the terminal periphery wall complex circular arc section (9) of rotor shaft of oil pump and with locate the terminal periphery wall on plane matched with planar section (10) of rotor shaft, transmission block body (7) still is equipped with connecting hole (11), connecting hole (11) with spread groove (8) intercommunication, just connecting hole (11) with spread groove (8) coaxial setting, connecting hole (11) are used for supplying the bolt to pass, and the rotor shaft end supports the tank bottom of spread groove (8), and the one end of bolt passes and stretches out connecting hole (11) are connected with the epaxial bolt hole of rotor, and the bolt compresses tightly the axial other end of transmission block body (7).
2. A transmission block for simulating an engine driven oil pump with a rotor shaft according to claim 1, characterized in that the depth of the connecting groove (8) is 3mm.
3. A transmission block for simulating an engine driven oil pump with a rotor shaft according to claim 1 or 2, characterized in that the connecting grooves (8) are provided with machining grooves (12) at both ends of the planar section (10), said machining grooves (12) being in communication with said connecting grooves (8).
4. A transmission block for simulating an engine driven oil pump with a rotor shaft according to claim 3, characterized in that the transmission block body (7) is a transmission block body (7) made of spring steel.
5. A driving block for simulating an engine driven oil pump with a rotor shaft according to claim 3, wherein two rotating blocks (13) are circumferentially arranged at intervals at one end of the driving block body (7) far from the connecting groove (8), the two rotating blocks (13) are on the same diameter, and the two rotating blocks (13) are used for being in rotating fit with a driving shaft of an electric motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322124236.3U CN220815915U (en) | 2023-08-08 | 2023-08-08 | Transmission block for simulating engine to drive oil pump with rotor shaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322124236.3U CN220815915U (en) | 2023-08-08 | 2023-08-08 | Transmission block for simulating engine to drive oil pump with rotor shaft |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220815915U true CN220815915U (en) | 2024-04-19 |
Family
ID=90703087
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322124236.3U Active CN220815915U (en) | 2023-08-08 | 2023-08-08 | Transmission block for simulating engine to drive oil pump with rotor shaft |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220815915U (en) |
-
2023
- 2023-08-08 CN CN202322124236.3U patent/CN220815915U/en active Active
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