CN108952960B - Multi-machine type crankshaft driving head - Google Patents
Multi-machine type crankshaft driving head Download PDFInfo
- Publication number
- CN108952960B CN108952960B CN201810587485.7A CN201810587485A CN108952960B CN 108952960 B CN108952960 B CN 108952960B CN 201810587485 A CN201810587485 A CN 201810587485A CN 108952960 B CN108952960 B CN 108952960B
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- push rod
- driving
- crankshaft
- driving disc
- face
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B77/00—Component parts, details or accessories, not otherwise provided for
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B27/00—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- General Engineering & Computer Science (AREA)
- Toys (AREA)
- Shafts, Cranks, Connecting Bars, And Related Bearings (AREA)
Abstract
The invention discloses a multi-machine type crankshaft driving head, which comprises a driving main shaft and a driving disc connected with the driving main shaft, wherein a plurality of shaft holes are formed in the driving disc, a push rod part is arranged in each shaft hole, each push rod part comprises a push rod axially arranged in the driving disc and a rotating pin, the rotating pin is fixed on the end face of the push rod close to the end face of a crankshaft flange, an axial floating mechanism is arranged on the push rod in the shaft hole, the driving main shaft is connected with a push rod connecting plate, the push rod is connected with the push rod connecting plate, and when the multi-machine type crankshaft driving head works, the push rod axially floats in a limited manner through the axial floating mechanism. The invention discloses a multi-machine type crankshaft driving head which has multi-machine applicability and flexibility of online random assembly, and the equipment does not need to replace a clamp, can save time and prevent mistakes and protect workpieces, and has the advantages of simple structure, convenient installation and debugging and convenient replacement of vulnerable parts.
Description
Technical Field
The invention belongs to the technical field of engine assembly, and particularly relates to a crankshaft driving head for multi-engine assembly, which is suitable for assembly equipment such as engine crankshaft rotation torque test and connecting rod cover fastening screw tightening.
Background
The crankshaft is an important part for power conversion and output of the engine, taking a four-cylinder gasoline engine as an example, the combustion kinetic energy of four combustion chambers of the engine is converted into rotary motion of the crankshaft by linear and linear motions of four groups of cylinder pistons through a connecting rod and the crankshaft, and the power is output through flywheel and belt wheels connected with two ends of the crankshaft. On one hand, in order to ensure the normal performance of the engine, the detection of the rotation torque of the crankshaft is particularly important in the assembly process of the engine, and the torque detection needs to drive the crankshaft to rotate by utilizing a crankshaft driving head; on the other hand, because of the eccentric shaft characteristic of the crankshaft, the four connecting rods and the cover and the fastening screws thereof fixed on the eccentric shaft can do rotary translation motion along with the rotation center of the eccentric shaft deflection shaft of the crankshaft, and in order to facilitate the screwing operation, the fastening screws of the connecting rods and the cover must be rotated to a designated position each time before screwing, so that the crankshaft is required to drive the head to drive the crankshaft to rotate.
The crankshaft driving head is connected with a flange of the flywheel through the crankshaft to realize the transmission of power between the crankshaft driving head and the crankshaft. In the prior art, a plurality of uniformly distributed screw holes and a pin hole with a deflection angle relative to the screw holes are formed on the flange end surface of the engine crankshaft connecting flywheel, as shown in fig. 1, and the hole positions of the corresponding engine blocks are different. Therefore, in order to meet the requirement of online random assembly of engine crankshafts of different types, a multi-machine type crankshaft driving head becomes a hot spot for research in the field.
Disclosure of Invention
The invention aims to solve the technical problem that the crankshaft driving head cannot be assembled randomly on line due to the fact that the crankshaft driving head cannot be applied to engine crankshaft flanges of different types in the prior art.
In order to solve the technical problems, the invention adopts the technical scheme that: the utility model provides a many machine type bent axle driving head, includes drive spindle and the driving disk who is connected with drive spindle, its characterized in that: the driving disc is internally provided with a plurality of shaft holes, each shaft hole is internally provided with a push rod component, each push rod component comprises a push rod axially arranged in the driving disc and a rotating pin, the rotating pin is fixed on the end face of the push rod close to the end face of the crankshaft flange and is positioned in the shaft hole, the push rod is provided with an axial floating mechanism, the driving main shaft is connected with a push rod connecting plate, the push rod is connected with the push rod connecting plate, and when the multi-machine crankshaft driving head works, the push rod axially floats in a limited manner through the axial floating mechanism.
Preferably, the axial floating mechanism comprises a push rod spring and a spring washer, one end of the push rod spring is abutted against a shaft shoulder of the push rod, and the other end of the push rod spring is blocked in the driving disc through the spring washer.
Preferably, two rotating pins are arranged on the same end face of the push rod, and the fit clearance between one rotating pin and a pin hole in the end face of the crankshaft flange is smaller than the fit clearance between the other rotating pin and a screw hole in the end face of the crankshaft flange.
Preferably, the push rod is axially provided with a guide groove, the driving disc is provided with an anti-rotation guide pin hole corresponding to the position of the guide groove, the anti-rotation guide pin is inserted into the guide groove after passing through the anti-rotation guide pin hole, and the anti-rotation guide pin is fixed with the driving disc.
Preferably, the driving disc is provided with a fixed gasket, the fixed gasket is clamped on the anti-rotation guide pin, and the fixed gasket is fixed with the driving disc through a fastener.
Preferably, the drive spindle is sleeved with a buffer spring and a spring seat, one end of the buffer spring is propped against the rear end face of the drive disc, the other end of the buffer spring is propped against the spring seat, and the spring seat is propped against the push rod connecting plate.
Preferably, a guide bushing for sealing is arranged between the shaft holes and the push rod at the two ends of the driving disc.
Preferably, a fixed baffle is arranged in the driving disc, one end of the driving main shaft is fixedly connected with the fixed baffle, a key groove is formed in the driving main shaft, and the driving main shaft is connected with the driving disc through a driving key.
Preferably, a nut is connected to one end of the push rod passing through the push rod connecting plate.
Preferably, the multi-machine type driving head is applied to the rotation torque test of an engine crankshaft or the tightening process of a connecting rod cover fastening screw.
The invention has the beneficial effects that: the invention discloses a multi-machine type crankshaft driving head, wherein a plurality of push rod components suitable for end face holes of crankshaft flanges of different machine types can be arranged in a driving disc, an axial floating mechanism is arranged in a push rod, so that the push rod can float in the axial direction in a limited way, when a rotating pin in the push rod component is not matched with a pin hole in the end face of the crankshaft flange, the push rod component is compressed by the end face of the crankshaft flange, and when the rotating pin in the push rod component is matched with the pin hole in the end face of the crankshaft flange, the rotating pin is inserted into the pin hole and drives the flange to rotate. The multi-machine type crankshaft driving head not only can drive a crankshaft, but also can realize the driving of the multi-machine type crankshaft by setting the reasonable positions of the push rod and the rotary pin at the end part of the push rod on the driving disc and the axial floating mechanism in the push rod on the premise of not replacing the tool so as to match with the hole positions corresponding to the crankshaft flanges of different models of engines. The equipment has the flexibility of multi-machine applicability and online random assembly, the equipment does not need to replace a clamp, time saving, error proofing and workpiece protection can be realized, and the equipment has the advantages of simple structure, convenience in installation and debugging and convenience in replacing vulnerable parts.
Drawings
FIG. 1 is a schematic diagram of a flange end face structure of a crankshaft connecting flywheel in the background art;
FIG. 2 is a schematic diagram of a multi-machine crankshaft drive head;
FIG. 3 is a schematic view of the internal structure of a multi-machine type crankshaft drive head;
FIG. 4 is a schematic side view of a multi-machine crankshaft drive head;
reference numerals in the drawings, 1-guide bushing; 2-driving disc, 2.1-driving disc rear end face; 3-fixing a baffle; 4-fixing the gasket; 5-anti-rotation guide pins; 6-driving a key; 7-a push rod spring; 8-a spring washer; 9-push rod components, 9.1-push rods, 9.1.1-push rod front sections, 9.1.2-push rod middle sections, 9.1.3-push rod tail sections, 9.1.4-guide grooves and 9.2-rotating pins; 10-a push rod connecting plate; 11-a buffer spring; 12-spring seat; 13-a drive spindle and 13.1-a key slot; 15-a nut; 16-pin holes; 17-screw holes.
Detailed Description
The following description of the technical solutions in the embodiments of the present invention will be clear and complete, and it is obvious that the described embodiments are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Example 1
A multi-machine type crankshaft driving head, as shown in figure 2, comprises a driving main shaft 13 and a driving disc 2 connected with the driving main shaft, wherein a plurality of shaft holes are arranged in the driving disc 2, and a push rod part 9 is arranged in each shaft hole. It should be noted that, the number of push rod parts is set according to specific working conditions, and each push rod part is applicable to the flange end face of a crankshaft of one machine type. In this embodiment, 3 pusher members 9 are preferably provided. In particular, the push rod part 9 comprises a push rod 9.1 axially arranged in the drive disc and a swivel pin 9.2 for positioning in a flange end face hole of the crankshaft. The distribution structure of the push rods on the driving disc, the position of each push rod and the position of the rotary pin at the end part of the push rod are based on the characteristics of the hole sites of the end faces of the crankshaft flanges of engines of different models. The push rod 9.1 is arranged in the shaft hole, and a guide bushing 1 for sealing is arranged between the push rod 9.1 and the shaft holes at two ends of the driving disc. The pin 9.2 is fixed to the end face of the pushrod near the end face of the crankshaft flange. In order to prevent the rotary pin from falling off, the rotary pin can be fixed on the end face of the push rod through the cooperation of a fastening screw and a nut. In this embodiment, two rotating pins 9.2 on the same end face of the push rod are provided, and the fit clearance between one rotating pin and the pin hole in the end face of the crankshaft flange is smaller than the fit clearance between the other rotating pin and the screw hole in the end face of the crankshaft flange. This design is intended to ensure that the pin that can be inserted into the only pin bore in the crankshaft flange end face bore is driving, i.e., the pin bore is used for driving rather than the screw bore. The push rod 9.1 comprises a push rod front section 9.1.1, a push rod middle section 9.1.2 and a push rod end section 9.1.3, a rotary pin is arranged on the end face of the push rod front section 9.1.1, and the diameters of the push rod front section 9.1.1, the push rod middle section 9.1.2 and the push rod end section 9.1.3 are sequentially reduced. In this embodiment, part of the pushrod front section 9.1.1 and pushrod middle section 9.1.2 are located inside the drive disk 2. An axial floating mechanism is arranged on the middle section 9.1.2 of the push rod. When the multi-model crankshaft driving head works, the push rod 9.1 can float in the axial direction in a limited way through the axial floating mechanism. In this embodiment, the axial floating mechanism includes a push rod spring 7 and a spring washer 8, one end of the push rod spring 7 abuts against a shoulder of the push rod middle section 9.1.2, and the other end of the push rod spring 7 is blocked in the driving disc 2 by the spring washer 8. The driving main shaft 13 is connected with a push rod connecting plate 10, and the push rod end section 9.1.3 is connected with the push rod connecting plate 10. A nut 15 is connected through the end 9.1.3 of the push rod connection plate 10. The nut can prevent the push rod from being separated from the push rod connecting plate after the push rod moves axially.
In order to make the driving spindle drive the driving disc smoothly, in this embodiment, a fixed baffle 3 is disposed inside the driving disc 2, one end of the driving spindle 13 is fixedly connected with the fixed baffle 3, and the fixed baffle 3 is clamped with the driving disc 2. The driving main shaft 13 is provided with a key slot 13.1, and the driving main shaft 13 is fixedly connected with the driving disc 2 through a driving key 6, a fastening screw and a spring washer. The design can meet the requirement that the driving force on the driving main shaft is transmitted to the driving disc through the driving key.
In order to enable the push rod to only perform axial linear motion and ensure that the radial position of the rotary pin on the driving disc is kept unchanged, a guide groove 9.1.4 is axially arranged on the push rod 9, and an anti-rotation guide pin hole is arranged on the driving disc 2 corresponding to the position of the guide groove. In this embodiment, the position of the anti-rotation guide pin hole is provided on the drive plate corresponding to the end of the guide groove. The anti-rotation guide pin 5 is inserted into the guide groove 9.1.4 after passing through the anti-rotation guide pin hole 2.1, the driving disc 2 is also provided with a limiting and anti-falling fixed gasket 4, the fixed gasket 4 is clamped on the anti-rotation guide pin 5, and the fixed gasket 4 is fixed with the driving disc 2 through a fastening screw and a spring washer.
In order to prevent the push rod from being impacted when the driving disc is pushed to the flange end face of the crankshaft and the push rod is fully compressed, the driving main shaft is sleeved with a buffer spring 11 and a spring seat 12, one end of the buffer spring 11 is abutted against the rear end face 2.1 of the driving disc, the other end of the buffer spring 11 is abutted against the spring seat 12, and the spring seat 12 is abutted against the push rod connecting plate 10.
The specific operation process is as follows: after the driving shaft rotates, driving shaft power is transmitted to the driving disc through the driving key to drive the driving disc to operate, the push rod part is driven to operate after the driving disc operates, when the rotating driving disc is pushed to the end face of the crankshaft flange, the push rod part finds out the corresponding hole position under the rotation of the driving disc, when the push rod part encounters an unsuitable hole position, the push rod part with the axial floating mechanism is blocked to move backwards axially, when the push rod which corresponds to the hole position of the end face of the crankshaft flange of a machine type rotates in place, under the action of the axial floating mechanism, the push rod part moves leftwards axially, and the rotary pin on the end face of the push rod can be inserted into the corresponding hole. One of the rotary pins is inserted into a single pin hole on the end face of the crankshaft flange, and the crankshaft is driven to rotate by the driving moment of the rotary pin under the rotation of the driving disc.
The foregoing is merely illustrative of the present invention, and the present invention is not limited thereto, and any person skilled in the art will readily recognize that variations or substitutions are within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (9)
1. The utility model provides a many machine type bent axle driving head, includes drive spindle and the driving disk who is connected with drive spindle, its characterized in that: the driving disc is internally provided with a plurality of shaft holes, each shaft hole is internally provided with a push rod component, each push rod component comprises a push rod axially arranged in the driving disc and a rotating pin, the rotating pin is fixed on the end face of the push rod close to the end face of the crankshaft flange and is positioned in the shaft hole, an axial floating mechanism is arranged on the push rod, the driving main shaft is connected with a push rod connecting plate, the push rod is connected with the push rod connecting plate, and when the multi-machine crankshaft driving head works, the push rod axially floats in a limited manner through the axial floating mechanism.
2. A multi-machine crankshaft drive head as claimed in claim 1, wherein: the axial floating mechanism comprises a push rod spring and a spring washer, one end of the push rod spring is propped against a shaft shoulder of the push rod, and the other end of the push rod spring is blocked in the driving disc through the spring washer.
3. A multi-machine crankshaft drive head as claimed in claim 1, wherein: the two rotating pins are arranged on the end face of the same push rod, and the fit clearance between one rotating pin and a pin hole in the end face of the crankshaft flange is smaller than the fit clearance between the other rotating pin and a screw hole in the end face of the crankshaft flange.
4. A multi-machine crankshaft drive head as claimed in claim 1, wherein: the push rod is axially provided with a guide groove, an anti-rotation guide pin hole is formed in the driving disc corresponding to the position of the guide groove, an anti-rotation guide pin is inserted into the guide groove after passing through the anti-rotation guide pin hole, and the anti-rotation guide pin is fixed with the driving disc.
5. A multi-machine crankshaft drive head as claimed in claim 4, wherein: the driving disc is provided with a fixed gasket which is clamped with the anti-rotation guide pin, and the fixed gasket is fixed with the driving disc through a fastener.
6. A multi-machine crankshaft drive head as claimed in claim 1, wherein: the driving spindle is sleeved with a buffer spring and a spring seat, one end of the buffer spring is propped against the rear end face of the driving disc, the other end of the buffer spring is propped against the spring seat, and the spring seat is propped against the push rod connecting plate.
7. A multi-machine crankshaft drive head as claimed in claim 1, wherein: and a guide bushing used for sealing is arranged between the shaft holes and the push rod at the two ends of the driving disc.
8. A multi-machine crankshaft drive head as claimed in claim 1, wherein: the driving disk is internally provided with a fixed baffle, one end of the driving main shaft is fixedly connected with the fixed baffle, the driving main shaft is provided with a key slot, and the driving main shaft is connected with the driving disk through a driving key.
9. A multi-machine crankshaft drive head as claimed in claim 1, wherein: one end of the push rod penetrating through the push rod connecting plate is connected with a nut.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810587485.7A CN108952960B (en) | 2018-06-06 | 2018-06-06 | Multi-machine type crankshaft driving head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810587485.7A CN108952960B (en) | 2018-06-06 | 2018-06-06 | Multi-machine type crankshaft driving head |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108952960A CN108952960A (en) | 2018-12-07 |
| CN108952960B true CN108952960B (en) | 2023-10-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810587485.7A Active CN108952960B (en) | 2018-06-06 | 2018-06-06 | Multi-machine type crankshaft driving head |
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| Country | Link |
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| CN (1) | CN108952960B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114961989B (en) * | 2021-02-23 | 2023-07-25 | 北京福田康明斯发动机有限公司 | Engine crankshaft disc headstock and automatic adjusting method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011074994A (en) * | 2009-09-30 | 2011-04-14 | Daihatsu Motor Co Ltd | Built-up crankshaft |
| CN105485187A (en) * | 2015-11-24 | 2016-04-13 | 安徽全柴动力股份有限公司 | Driving head online changing device and engine crankshaft gyroscopic moment measurement system |
| CN205826308U (en) * | 2016-07-22 | 2016-12-21 | 安徽江淮汽车股份有限公司 | A kind of bent axle swivel joint |
-
2018
- 2018-06-06 CN CN201810587485.7A patent/CN108952960B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011074994A (en) * | 2009-09-30 | 2011-04-14 | Daihatsu Motor Co Ltd | Built-up crankshaft |
| CN105485187A (en) * | 2015-11-24 | 2016-04-13 | 安徽全柴动力股份有限公司 | Driving head online changing device and engine crankshaft gyroscopic moment measurement system |
| CN205826308U (en) * | 2016-07-22 | 2016-12-21 | 安徽江淮汽车股份有限公司 | A kind of bent axle swivel joint |
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| Publication number | Publication date |
|---|---|
| CN108952960A (en) | 2018-12-07 |
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Address after: 215400 Science and Technology Industrial Park of Taicang City, Suzhou City, Jiangsu Province Applicant after: Tianyong Lithium Battery Automation Equipment (Taicang) Co.,Ltd. Address before: 215400 Science and Technology Industrial Park of Taicang City, Suzhou City, Jiangsu Province Applicant before: TIANYONG MACHINERY ELECTRONICS (TAICANG) Co.,Ltd. |
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Effective date of registration: 20230906 Address after: Block a, 2 / F, building 3, No. 555, Huibao Road, Waigang Town, Jiading District, Shanghai, 201806 Applicant after: SHANGHAI TIANYONG INTELLIGENT EQUIPMENT Co.,Ltd. Address before: 215400 Science and Technology Industrial Park of Taicang City, Suzhou City, Jiangsu Province Applicant before: Tianyong Lithium Battery Automation Equipment (Taicang) Co.,Ltd. |
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