CN214213586U - Crankshaft timing positioning device - Google Patents
Crankshaft timing positioning device Download PDFInfo
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- CN214213586U CN214213586U CN202023240725.8U CN202023240725U CN214213586U CN 214213586 U CN214213586 U CN 214213586U CN 202023240725 U CN202023240725 U CN 202023240725U CN 214213586 U CN214213586 U CN 214213586U
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- positioning
- timing
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- crankshaft
- positioning sleeve
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Abstract
The utility model discloses a bent axle positioner in right time, bent axle in cylinder body and cylinder body, the positive time slot has been seted up to the maximum radius department of a crank arm of bent axle, is equipped with the screw hole in the positive time slot, the cylinder body is equipped with the timing location screw that corresponds with the timing slot, the optional installation can be with the crankshaft position fixing in right time location frock in the timing location screw in the timing location, the tip is equipped with the locating lever with screw hole fixed connection in right time location frock. The utility model discloses can accurately guarantee the position in right time of bent axle, can find bent axle position in right time fast to die the bent axle lock in this position, can realize simultaneously location and two kinds of functions of locking, practiced thrift the manpower in the installation again, improved assembly efficiency and precision.
Description
Technical Field
The utility model relates to a bent axle positioner in right time.
Background
When the diesel engine works, the crankshaft, the fuel injection pump and the camshaft are required to provide fuel oil and intake air into the cylinder in due time according to the timing requirement, so that the sufficient combustion in the cylinder can be ensured, and the required power is output. In order to ensure the phase requirements of the three components, the three components need to be positioned during assembly. Aiming at crankshaft position positioning, most of companies adopt to mark marks on a flywheel or a crankshaft pulley at present, a technician drives an engine crankshaft during assembly, and observes whether the marks on the flywheel or the pulley are aligned with a pointer or not, and the marks on the flywheel or the pulley are determined to be in a timing position manually, so that the accuracy of the positioning is greatly influenced by manual work, and the assembly efficiency is low.
Disclosure of Invention
The to-be-solved technical problem of the utility model is to provide a bent axle positioner in right time of bent axle positioning accuracy and assembly efficiency height.
In order to solve the technical problem, the utility model discloses a bent axle in cylinder body and cylinder body, its structural feature is the positive time slot has been seted up to the maximum radius department of a crank arm of bent axle, is equipped with the screw hole in the positive time slot, the cylinder body is equipped with the timing location screw that corresponds with the timing slot, the optional installation can be with the crankshaft position fixing in the timing location frock in the timing position, the tip is equipped with the locating lever with screw hole fixed connection in the timing location frock.
The timing positioning tool comprises a positioning sleeve, the positioning sleeve is integrally step-shaped in appearance, the outer diameter of the head end of the positioning sleeve is larger than that of the tail end of the positioning sleeve, the positioning sleeve is provided with a cavity which is axially communicated, a positioning rod which can move along the axial direction of the positioning rod is inserted into the cavity, and the head of the positioning rod is provided with a thread section which is correspondingly arranged with a thread hole.
The inner diameter of the inner cavity of the head end of the positioning sleeve is larger than that of the inner cavity of the tail end of the positioning sleeve, the positioning rod is provided with an outer end head, the positioning rod is sleeved with a spacer sleeve, and a spring is sleeved on the positioning rod between the end wall of the inner cavity of the head end of the positioning sleeve and the positioning sleeve.
The inner end face of the head end of the positioning sleeve is correspondingly provided with a pin hole, the pin hole is communicated with the inner cavity of the head end of the positioning sleeve, a cylindrical pin is arranged in the pin hole, the spacer sleeve is provided with an annular wall extending along the inner cavity of the head end of the positioning sleeve, and the annular wall is correspondingly provided with a pin groove corresponding to the cylindrical pin.
The positioning rod is characterized in that an annular groove is formed in the waist of the positioning rod, a screw hole is formed in the inner end of the positioning sleeve, and a screw capable of locking the positioning rod is arranged in the screw hole.
After the structure is adopted, the cylinder body is provided with the timing positioning screw hole corresponding to the timing groove, the timing positioning tool capable of fixing the position of the crankshaft at the timing position can be selectively installed in the timing positioning screw hole, the positioning rod fixedly connected with the threaded hole is arranged at the inner end part of the timing positioning tool, the timing position of the crankshaft can be quickly found, the crankshaft is locked at the position, and two functions of positioning and locking can be simultaneously realized. The utility model discloses can guarantee the position in right time of bent axle accurately, practice thrift the manpower in the installation again, improve assembly efficiency and precision. And the annular groove has been seted up on the locating lever, and the inner of position sleeve is equipped with the screw hole, is equipped with the screw that can pin the locating lever in the screw hole, can effectively protect the locating lever screw thread section, prevents that the screw thread from damaging.
Drawings
The following detailed description of embodiments of the present invention is provided with reference to the accompanying drawings:
fig. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic structural view of a timing positioning tool;
FIG. 3 is a schematic view of the cross-section A-A of FIG. 2;
FIG. 4 is a schematic structural view of the positioning sleeve;
FIG. 5 is a bottom view of the structure of FIG. 4;
FIG. 6 is a schematic view of the spacer;
fig. 7 is a schematic structural view of the positioning rod.
Detailed Description
Referring to the attached drawings, the crankshaft timing positioning device comprises a cylinder body 7 and a crankshaft 8 in the cylinder body, wherein a timing slot 9 is formed in the position of the maximum radius of one crank arm of the crankshaft 8, a threaded hole 10 is formed in the timing slot 9, the cylinder body 7 is provided with a timing positioning threaded hole corresponding to the timing slot 9, and when the timing slot 9 of the crankshaft 8 is aligned with the timing positioning threaded hole in the cylinder body 7, namely the crankshaft timing position is achieved. The timing positioning tool capable of fixing the crankshaft position at the timing position is selectively arranged in the timing positioning screw hole, the positioning rod 1 fixedly connected with the threaded hole 10 is arranged at the inner end part of the timing positioning tool, and the timing position of the crankshaft can be quickly found and the crankshaft is locked at the position through the special structure. The timing positioning tool comprises a positioning sleeve 2, the projection of the outline of the positioning sleeve 2 on the horizontal plane is integrally step-shaped, the external diameter of the head end of the positioning sleeve is larger than the external diameter of the tail end of the positioning sleeve, the external wall of the tail end of the positioning sleeve 2 is provided with a thread section corresponding to a timing positioning screw hole, the positioning sleeve 2 of the timing positioning tool is fixed on a cylinder body 7 through threads, the positioning sleeve 2 is provided with a cavity 11 which is axially communicated, the projection of the cavity 11 on the horizontal plane is a coaxial step-shaped round hole, the internal diameter of the head end inner cavity of the positioning sleeve 2 is larger than the internal diameter of the tail end inner cavity, a positioning rod 1 which can move along the axial direction of the positioning rod is inserted in the cavity 11, the head of the positioning rod 1 is provided with the thread section corresponding to the thread hole 10, the positioning rod 1 is provided with an outer end 12, the external diameter of the external end 12 is larger than the internal diameter of the head end inner cavity of the positioning sleeve 2, the positioning rod 1 is sleeved with a spacer 5 with which has the external diameter matched with the internal diameter of the head end inner cavity of the positioning sleeve 2, and the spacer 5 can slide along the axial direction of the head end inner cavity of the positioning sleeve 2, a spring 4 is sleeved on the positioning rod 1 between the end wall of the inner cavity at the head end of the positioning sleeve 2 and the positioning sleeve 2. The inner end face (close to the tail end side of the positioning sleeve 2) at the head end of the positioning sleeve 2 is correspondingly provided with two pin holes 13, the two pin holes 13 are symmetrically arranged along the radial direction of the positioning sleeve 2, the pin holes 13 are communicated with the inner cavity at the head end of the positioning sleeve 2, the pin 6 is arranged in the pin holes 13, the spacer 5 is provided with a ring wall extending along the inner cavity at the head end of the positioning sleeve 2, the outer diameter of the ring wall is matched with the inner diameter of the inner cavity at the head end of the positioning sleeve 2, the inner diameter of the ring wall is larger than that of the positioning rod 1, the pin groove 14 corresponding to the position of the pin 6 is correspondingly arranged on the ring wall, one end part of the spring 4 is arranged in the inner cavity at the ring wall of the spacer 5, the spacer 5 is not twisted when axially sliding along the inner cavity at the head end of the positioning sleeve 2 through correspondingly arranging the pin 6 and the pin groove 14, the axial sliding quantity of the spacer can be limited, the accurate positioning operation at right time can be ensured, and the thread damage of the positioning rod can be prevented. Annular groove 15 has been seted up on 1 waist of locating lever, 1 waist of locating lever position in locating lever 1 locates at 2 head ends of position sleeve and tail end intersection positions, 2 the inner (being close to 2 tail end one sides of position sleeve) of position sleeve are equipped with screw hole 16, screw hole 16 is the counter bore, 16 axes of screw hole are perpendicular with 2 cavity axis of position sleeve, be equipped with the screw 3 that can pin locating lever 1 in the screw hole 16, hexagon screw in 3 adoption screws of screw, installation back screw 3 hides in 2 head bodies of position sleeve. Through the corresponding setting of screw hole 16, annular 15 and screw 3, when the bent axle is deposited in the location frock in right time, the locating lever head screw thread contracts in the position sleeve, can effectively protect the locating lever screw thread, prevents that the screw thread from damaging. Through the cooperation of screw 3 and the waist annular 15 of locating lever, guarantee the relative position of locating lever and position sleeve when the spring is flexible, prevent that the locating lever from deviating from in the position sleeve.
The utility model discloses a theory of operation: the positioning sleeve of the timing positioning tool is fixed in a timing positioning screw hole of the cylinder body through threads, the positioning rod spring is pushed to be compressed, the head thread extends out, and the positioning sleeve is in threaded connection with a threaded hole in a timing groove on a crank arm of the crankshaft correspondingly, so that the position of the crankshaft is fixed at the required timing position. And after the timing work operation is finished, the timing positioning tool is detached from the timing positioning screw hole of the cylinder body, and the timing positioning screw hole is plugged by a bolt.
The utility model discloses because the cylinder body is equipped with the timing location screw that corresponds with the groove in right time, the optional installation can be with the timing location frock of bent axle rigidity in the position in right time in the timing location screw, the tip in the timing location frock be equipped with screw hole fixed connection's locating lever, can find bent axle position in right time fast to die the bent axle lock in this position, can realize simultaneously location and two kinds of functions of locking. The utility model discloses can guarantee the position in right time of bent axle accurately, practice thrift the manpower in the installation again, improve assembly efficiency and precision. And the annular groove has been seted up on the locating lever, and the inner of position sleeve is equipped with the screw hole, is equipped with the screw that can pin the locating lever in the screw hole, can effectively protect the locating lever screw thread section, prevents that the screw thread from damaging.
Claims (5)
1. A crankshaft timing positioning device comprises a cylinder body (7) and a crankshaft (8) in the cylinder body, and is characterized in that a timing groove (9) is formed in the maximum radius of a crank arm of the crankshaft (8), a threaded hole (10) is formed in the timing groove (9), a timing positioning screw hole corresponding to the timing groove (9) is formed in the cylinder body (7), a timing positioning tool capable of fixing the position of the crankshaft at a timing position can be selectively installed in the timing positioning screw hole, and a positioning rod (1) fixedly connected with the threaded hole (10) is arranged at the inner end of the timing positioning tool.
2. The crankshaft timing positioning device according to claim 1, characterized in that the timing positioning tool comprises a positioning sleeve (2), the positioning sleeve (2) is integrally step-shaped in shape, the outer diameter of the head end of the positioning sleeve is larger than that of the tail end of the positioning sleeve, the positioning sleeve (2) is provided with a cavity (11) which axially penetrates through, a positioning rod (1) which can axially move along the cavity (11) is inserted into the cavity, and the head of the positioning rod (1) is provided with a threaded section which corresponds to the threaded hole (10).
3. The crankshaft timing positioning device as claimed in claim 2, characterized in that the inner diameter of the inner cavity at the head end of the positioning sleeve (2) is larger than that of the inner cavity at the tail end, the positioning rod (1) is provided with an outer end (12), the positioning rod (1) is sleeved with a spacer sleeve (5), and the positioning rod (1) between the end wall of the inner cavity at the head end of the positioning sleeve (2) and the positioning sleeve (2) is sleeved with a spring (4).
4. The crankshaft timing positioning device as claimed in claim 3, characterized in that a pin hole (13) is correspondingly formed in the inner end surface of the head end of the positioning sleeve (2), the pin hole (13) is communicated with the inner cavity of the head end of the positioning sleeve (2), a cylindrical pin (6) is arranged in the pin hole (13), the spacer sleeve (5) is provided with a ring wall extending along the inner cavity of the head end of the positioning sleeve (2), and a pin groove (14) corresponding to the cylindrical pin (6) is correspondingly formed in the ring wall.
5. The crankshaft timing positioning device according to any one of claims 2-4, characterized in that the waist of the positioning rod (1) is provided with an annular groove (15), the inner end of the positioning sleeve (2) is provided with a screw hole (16), and the screw hole (16) is provided with a screw (3) capable of locking the positioning rod (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023240725.8U CN214213586U (en) | 2020-12-29 | 2020-12-29 | Crankshaft timing positioning device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023240725.8U CN214213586U (en) | 2020-12-29 | 2020-12-29 | Crankshaft timing positioning device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214213586U true CN214213586U (en) | 2021-09-17 |
Family
ID=77706604
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023240725.8U Active CN214213586U (en) | 2020-12-29 | 2020-12-29 | Crankshaft timing positioning device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214213586U (en) |
-
2020
- 2020-12-29 CN CN202023240725.8U patent/CN214213586U/en active Active
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