CN218439489U - Mounting and positioning tool for inverted camshaft of diesel engine - Google Patents
Mounting and positioning tool for inverted camshaft of diesel engine Download PDFInfo
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- CN218439489U CN218439489U CN202222586942.5U CN202222586942U CN218439489U CN 218439489 U CN218439489 U CN 218439489U CN 202222586942 U CN202222586942 U CN 202222586942U CN 218439489 U CN218439489 U CN 218439489U
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Abstract
The installation and positioning tool for the inverted camshaft of the diesel engine is provided, a first positioning sleeve and a fuel roller guide cylinder seat below the first positioning sleeve are coaxially arranged, and a datum line formed by connecting lines of connecting parts of a plurality of first positioning sleeves on a positioning plate and the axis of the camshaft arranged on a bearing shell in a fuel jacking mechanism in an inverted manner are positioned on the same vertical plane; the second positioning sleeve is positioned at the upper end of an air inlet and exhaust roller guide cylinder seat in the air inlet and exhaust jacking mechanism, the axis of the second positioning sleeve is positioned on the vertical central plane of a roller in the air inlet and exhaust jacking mechanism, and the position of the air inlet and exhaust roller guide cylinder seat is adjusted to ensure that the upper end of the second positioning sleeve is connected with the positioning plate and then positioned on the datum line. The utility model discloses guaranteed the space mounted position of camshaft and the relative position of gyro wheel and camshaft when admitting and exhausting, improved the accuracy of admitting and exhausting regularly, reduced the degree of difficulty of reverse hanging type camshaft assembly, improved installation effectiveness and installation accuracy, reduced gyro wheel guide eccentric wear incidence, effectively avoided the quality accident of gyro wheel guide eccentric wear.
Description
Technical Field
The utility model belongs to the technical field of the diesel engine, concretely relates to installation location frock of diesel engine reverse hanging type camshaft.
Background
The camshaft is an important part of the diesel engine, the crankshaft drives the camshaft through a transmission mechanism, an air inlet cam and an air outlet cam which are arranged on the camshaft control the opening and closing of an air valve through an air inlet and outlet jacking mechanism, and a fuel oil cam controls the timing and quantitative oil supply of a high-pressure oil pump through an oil injection pump jacking mechanism.
The mounting structure of the multi-gear reverse hanging type camshaft is as follows: as shown in fig. 1, a camshaft installation hole is formed after the bearing housing 3 is assembled, each gear bearing housing 3 is inversely hung on the fuel roller guide cylinder seat 5 of the corresponding gear, the fuel roller guide cylinder seat 5 is installed on the plane of the machine body 4, the coaxiality of the cam bearing seat hole and the parallelism of the transmission hole system are ensured by controlling the machining precision of the bearing housing 3 and depending on the installation precision of each gear bearing housing 3, a huff type thick-walled tile 2 is installed in the bearing seat hole of each gear bearing housing 3, the huff type thick-walled tile 2 is fixed on the bearing housing 3 by a screw 8, the camshaft 1 is inversely hung in the huff type thick-walled tile 2 in the camshaft bearing housing 3 of each cylinder and supports the camshaft 1 to run, the bearing housing 3 of each cylinder has higher installation precision requirement, the symmetry of the bearing housing 3 and the machine body installation hole relative to the camshaft installation hole requires 0.02, the parallelism of the bearing housing 3 and the machine body installation hole relative to the camshaft installation hole requires 0.01/100, the coaxiality of the camshaft 1 of all the cylinders is ensured when being installed, and the camshaft 1 is in a correct state.
As shown in fig. 2, the intake and exhaust roller guide cylinder seat 6 of each stage of intake and exhaust jacking mechanism is installed on the upper plane of the machine body 4, the roller 7 of the intake and exhaust roller guide cylinder seat is in contact fit with the cam sheet 9 assembled on the camshaft 1, the intake and exhaust roller guide cylinder seat 6 is installed on the installation hole of the machine body 4, and the intake and exhaust roller guide cylinder seat 6 needs to be adjusted to the condition that the axis of each cylinder roller 7 and the axis of the camshaft 1 are on the same plane, so as to ensure that the intake and exhaust lift meets the requirements.
After the fuel roller guide cylinder bases 5 of all gears are installed and the relative position of the bearing shell 3 and the camshaft 1 is ensured, the position of the roller 7 relative to the camshaft 1 is determined, the position of the air intake and exhaust roller guide cylinder base 6 is adjusted by using the side surface of the machine body 4 as a reference in the traditional tool, the tool 10 for adjusting the air intake and exhaust jacking mechanism is installed on the side surface of the machine body 4, the air intake and exhaust roller guide cylinder base 6 is installed in an installation hole of the machine body 4, and the gap A between the air intake and exhaust roller guide cylinder base 6 and the tool 10 is adjusted to be minimum; because the side surface of the machine body 4 is positioned as an indirect positioning reference, the change of the position of the machine body and the camshaft 1 is caused by neglecting the installation adjustment error of each bearing shell 3, the axes of the roller 7 of each cylinder air intake and exhaust jacking mechanism and the axis of the camshaft 1 are staggered in space and are not on the same plane, and the timing lift value of the diesel engine is out of tolerance, namely the air distribution timing is inaccurate; meanwhile, if the central line of the roller 7 and the axial line of the camshaft 1 form a tiny included angle, the quality accident of eccentric wear of the roller guide cylinder 11 is caused; the cam piece 9 is not well jointed with the roller 7, changes the line contact into point contact, generates irregular lateral force, aggravates abrasion, shortens the service life of the cam piece 9 and the roller 7, so there are technical difficulties in the assembling process of the inverted camshaft assembling structure, there are technical defects in the installation of the original camshaft 1, the fuel injection pump jacking mechanism and the air intake and exhaust jacking mechanism, the adjustment is long in time consumption, the quality is unstable, and the operation quality of the diesel engine is seriously affected, so that the improvement is necessary to the problems.
SUMMERY OF THE UTILITY MODEL
The utility model provides a technical problem: the utility model provides an installation location frock of diesel engine reverse hanging camshaft, use the camshaft as the center benchmark, confirm the datum line that is located the same vertical plane with the camshaft axis through locating plate and the first position sleeve the same with fuel jacking mechanism quantity, the position of the second position sleeve that the upper and lower position corresponds that is the same with the gyro wheel quantity of air inlet and exhaust jacking mechanism on the gyro wheel guide cylinder seat of rethread adjustment connection, make the hookup location of second position sleeve and locating plate be located the datum line, alright accomplish the installation that the gyro wheel axis of air inlet and exhaust jacking mechanism and camshaft axis are located the same vertical plane, thereby guarantee the space mounted position of camshaft and the relative position of gyro wheel and camshaft when air inlet and exhaust, improve the accuracy of air inlet and exhaust timing, reduce the degree of difficulty of reverse hanging camshaft assembly, improve installation effectiveness and installation accuracy, reduce gyro wheel guide cylinder eccentric wear incidence, effectively avoid the quality accident of gyro wheel guide cylinder eccentric wear, improve diesel engine economy, adjustment easy operation is convenient, effectively practice thrift the activity duration.
The utility model adopts the technical proposal that: the mounting and positioning tool for the inverted camshaft of the diesel engine comprises a positioning plate, wherein first positioning sleeves with the same number as that of fuel jacking mechanisms and second positioning sleeves with the same number as that of air inlet and exhaust jacking mechanisms are arranged below the positioning plate, the first positioning sleeves and fuel roller guide cylinder seats in the fuel jacking mechanisms arranged on a machine body below the first positioning sleeves are coaxially arranged, the positioning plate is connected with the upper ends of the first positioning sleeves, and reference lines formed by connecting lines of connecting positions of the first positioning sleeves on the positioning plate and the axis of the camshaft arranged on a bearing shell in the fuel jacking mechanisms in an inverted manner are positioned on the same vertical plane; the second locating sleeve is positioned at the upper end of an air inlet and exhaust roller guide cylinder seat in the air inlet and exhaust jacking mechanism, the axis of the second locating sleeve is positioned on a vertical central plane of a roller in the air inlet and exhaust jacking mechanism, the position of the air inlet and exhaust roller guide cylinder seat is adjusted to enable the upper end of the second locating sleeve to be connected with the locating plate, the connecting position of the second locating sleeve and the locating plate is positioned on a reference line, and the installation that the axis of the roller of the air inlet and exhaust jacking mechanism and the axis of a cam shaft are positioned on the same vertical plane is completed.
The upper end face of the fuel roller guide cylinder seat is provided with a first mounting hole which is positioned on the same vertical central plane with a cam shaft arranged on the bearing shell, and a positioning boss which is arranged in the middle of the lower end face of the first positioning sleeve is coaxially matched in the first mounting hole.
Furthermore, the surface of the positioning plate is provided with a first positioning hole which is coaxially arranged with a center hole of the upper end surface of the first positioning sleeve, and after the positioning plate and the first positioning sleeve are positioned and inserted by a first positioning pin which penetrates through the first positioning hole and is inserted into the center hole of the upper end surface of the first positioning sleeve, the center connecting lines of the first positioning pins form a datum line which is vertically corresponding to and parallel to the axis of the camshaft.
Furthermore, a second mounting hole which is positioned on the same vertical central line with the roller at the lower end of the air inlet and exhaust roller guide cylinder seat is formed in the upper end face of the air inlet and exhaust roller guide cylinder seat, and a positioning boss which is arranged in the middle of the lower end face of the second positioning sleeve is coaxially matched in the second mounting hole.
Furthermore, a plurality of second positioning holes which are positioned on the datum line are formed in the middle plate surface of the positioning plate, the second positioning holes and the rollers below the second positioning holes are positioned on the same vertical central line, the mounting positions of the two air inlet and exhaust roller guide cylinder seats on the machine body are adjusted until the second positioning pins which penetrate through the two second positioning holes of the positioning plate are respectively inserted into the second positioning holes at the upper end of the second positioning sleeve below the second positioning holes, and the mounting of the axes of the rollers and the axes of the cam shaft on the same vertical plane is completed.
Compared with the prior art, the utility model advantage:
1. the technical scheme includes that a camshaft is taken as a center reference, a datum line which is located on the same vertical plane with the axis of the camshaft is determined through a positioning plate and first positioning sleeves which are the same as the fuel oil jacking mechanisms in number, and the positions of second positioning sleeves which are connected to an air inlet and exhaust roller guide cylinder seat, are the same as the rollers of the air inlet and exhaust jacking mechanisms in number and correspond to the upper and lower positions are adjusted, so that the connecting positions of the second positioning sleeves and the positioning plate are located on the datum line, and the installation that the axes of the rollers of the air inlet and exhaust jacking mechanisms and the axis of the camshaft are located on the same vertical plane can be completed, so that the spatial installation position of the camshaft and the relative positions of the rollers and the camshaft during air inlet and exhaust are ensured, and the accuracy of air inlet and exhaust timing is improved;
2. in the technical scheme, in the assembling process of the air intake and exhaust jacking mechanism, the roller axis of the air intake and exhaust jacking mechanism and the camshaft axis are parallel and positioned on the same vertical plane, so that the roller guide cylinder is effectively prevented from deflecting, the eccentric wear incidence rate of the roller guide cylinder is effectively reduced, and the quality accident of eccentric wear of the roller guide cylinder is avoided;
3. this technical scheme has reduced the degree of difficulty of reverse hanging camshaft assembly, improves installation effectiveness and installation accuracy, improves diesel engine economic nature, and adjustment easy operation is convenient, effectively practices thrift the activity duration.
Drawings
FIG. 1 is a schematic structural diagram of a jacking mechanism of an injection pump;
FIG. 2 is a schematic view of the intake and exhaust jacking mechanism;
FIG. 3 is a schematic view of a conventional tool in use;
fig. 4 is a schematic view of the usage state of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to fig. 1-2 and 4 in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation. The use of the phrase "comprising one of the elements" does not exclude the presence of other like elements in the process, method, article, or apparatus that comprises the element.
The mounting and positioning tool for the inverted camshaft of the diesel engine comprises a positioning plate 12, wherein first positioning sleeves 13 with the same number as that of fuel oil jacking mechanisms and second positioning sleeves 14 with the same number as that of intake and exhaust jacking mechanisms are arranged below the positioning plate 12, the first positioning sleeves 13 with a plurality of through holes on the outer wall are coaxially arranged with fuel oil roller guide cylinder seats 5 in the fuel oil jacking mechanisms arranged on a machine body 4 below the first positioning sleeves 13, the positioning plate 12 is connected with the upper ends of the first positioning sleeves 13, and a datum line formed by connecting lines of the connecting parts of the first positioning sleeves 13 on the positioning plate 12 and the axis of the camshaft 1 arranged on a bearing shell 3 in the fuel oil jacking mechanisms in an inverted manner are positioned on the same vertical plane; the second locating sleeve 14 is positioned at the upper end of the air inlet and exhaust roller guide cylinder seat 6 in the air inlet and exhaust jacking mechanism, the axis of the second locating sleeve 14 is positioned on the vertical central plane of the roller 7 in the air inlet and exhaust jacking mechanism, the position of the air inlet and exhaust roller guide cylinder seat 6 is adjusted to enable the upper end of the second locating sleeve 14 to be connected with the locating plate 12, the connecting position of the second locating sleeve 14 and the locating plate 12 is positioned on a reference line, and the installation that the axis of the roller 7 of the air inlet and exhaust jacking mechanism and the axis of the camshaft 1 are positioned on the same vertical plane is completed.
The first positioning sleeve 13 is coaxially arranged on the fuel roller guide cylinder seat 5 and has the following structure: the upper end face of the fuel roller guide cylinder seat 5 is provided with a first mounting hole which is positioned on the same vertical central plane as the camshaft 1 mounted on the bearing shell 3, and a positioning boss which is arranged in the middle of the lower end face of the first positioning sleeve 13 is coaxially matched in the first mounting hole; the plurality of through holes are formed in the outer wall of the first positioning sleeve 13, so that the weight of the first positioning sleeve 13 is favorably reduced, and convenience is brought to installation of the first positioning sleeve 13;
the connection structure of the positioning plate 12 and the first positioning sleeve 13 is as follows: the surface of the positioning plate 12 is provided with a first positioning hole which is coaxial with the central hole of the upper end surface of the first positioning sleeve 13, after the positioning plate 12 and the first positioning sleeve 13 are positioned and inserted by a first positioning pin 15 which penetrates through the first positioning hole and is inserted into the central hole of the upper end surface of the first positioning sleeve 13, the central connecting lines of the first positioning pins 15 form a datum line which is vertically corresponding to and parallel to the axis of the camshaft 1.
The coaxial arrangement structure of the second positioning sleeve 14 on the air intake and exhaust roller guide cylinder seat 6 is as follows: and a second mounting hole which is positioned on the same vertical central line with the roller 7 at the lower end of the air inlet and exhaust roller guide cylinder seat 6 is formed in the upper end surface of the air inlet and exhaust roller guide cylinder seat, and a positioning boss which is arranged in the middle of the lower end surface of the second positioning sleeve 14 is coaxially matched in the second mounting hole.
The connecting structure of the positioning plate 12 and the second positioning sleeve 14 is as follows: a plurality of second positioning holes positioned on the datum line are formed in the middle plate surface of the positioning plate 12, the second positioning holes and the rollers 7 below the second positioning holes are positioned on the same vertical central line, the mounting positions of the two air inlet and exhaust roller guide cylinder seats 6 on the machine body 4 are adjusted until the second positioning pins 16 penetrating through the two second positioning holes of the positioning plate 12 are respectively inserted into the second positioning holes at the upper end of the second positioning sleeve 14 below, and the mounting of the axes of the rollers 7 and the axes of the camshafts 1 on the same vertical plane is completed.
Two first positioning sleeves 13 are arranged in central holes at the upper ends of fuel oil roller guide cylinder seats 5, two first positioning holes which are positioned and connected with the first positioning sleeves 13 on a positioning plate 12 are used for accurately positioning reference lines which are parallel to the central axis of a camshaft 1 and are positioned on the same vertical plane, the lower ends of second positioning sleeves 14 are coaxially positioned with the central holes at the upper ends of air inlet and exhaust roller guide cylinder seats 6, the positions of the air inlet and exhaust roller guide cylinder seats 6 are adjusted, and the positions of the air inlet and exhaust roller guide cylinder seats 6 are accurately positioned by using a mode that second positioning holes on the positioning plate 12 are spliced with the second positioning sleeves 14 through second positioning pins 16, so that the air inlet and exhaust jacking mechanism and the axis of the camshaft 1 are ensured to be on the same vertical plane, and the air distribution timing of a diesel engine is accurate; meanwhile, two second positioning sleeves 14 are arranged in second mounting holes at the upper ends of the air inlet and exhaust roller sleeve seats 6, so that the vertical central line of the roller 7 is ensured to be positioned on the vertical central plane of the camshaft 1, and the position deviation of the roller 7 relative to the camshaft 1 can be avoided, and the specific structure is shown in fig. 4.
According to the technical scheme, a camshaft 1 is taken as a center reference, a reference line which is positioned on the same vertical plane with the axis of the camshaft 1 is determined through a positioning plate 12 and first positioning sleeves 13 which are the same as the fuel oil jacking mechanisms in number, and the positions of second positioning sleeves 14 which are connected to an air inlet and exhaust roller guide cylinder seat 6, are the same as the rollers of the air inlet and exhaust jacking mechanisms in number and correspond to the upper and lower positions are adjusted, so that the connecting positions of the second positioning sleeves 14 and the positioning plate 12 are positioned on the reference line, and the installation of the axes of the rollers 7 of the air inlet and exhaust jacking mechanisms and the axis of the camshaft 1 on the same vertical plane can be completed, so that the spatial installation position of the camshaft 1 and the relative positions of the rollers 7 and the camshaft 1 during air inlet and exhaust are ensured, and the accuracy of air inlet and exhaust timing is improved; in the assembly process of the air intake and exhaust jacking mechanism, the axis of a roller 7 of the air intake and exhaust jacking mechanism is parallel to the axis of a camshaft 1 and is positioned on the same vertical plane, so that the deviation of a roller guide cylinder 11 is effectively avoided, the eccentric wear incidence rate of the roller guide cylinder 11 is effectively reduced, and the quality accident of the eccentric wear of the roller guide cylinder 11 is avoided;
during installation, after the fuel oil jacking mechanism and the camshaft 1 are installed, the lower end of the first positioning sleeve 13 is coaxially positioned in the first installation hole at the upper end of the fuel oil roller guide cylinder seat 5, the positioning plate 12 is connected with the two first positioning sleeves 13 through the first positioning pins 15, and the center connecting line of the two first positioning pins 15 forms a datum line vertically corresponding to and parallel to the axis of the camshaft 1, namely the position of the axis of the camshaft 1 is determined; the central hole of the inlet and exhaust roller sleeve seat 6 is moved to the upper end of the second positioning sleeve 14 to coincide with the second positioning hole on the positioning plate 12, and the second positioning pin 16 can be normally installed, namely, the center of the roller 7 of the inlet and exhaust jacking mechanism and the vertical central line of the camshaft 1 are positioned in the same plane, so that the accuracy of inlet and exhaust timing and the center of the roller 7 parallel to the center of the camshaft 1 can be ensured.
This technical scheme has reduced the degree of difficulty of reverse hanging camshaft assembly, improves installation effectiveness and installation accuracy, improves diesel engine economic nature, and adjustment easy operation is convenient, effective save activity duration.
It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (5)
1. Installation location frock of diesel engine reverse hanging camshaft, its characterized in that: the fuel oil jacking device comprises a positioning plate (12), wherein first positioning sleeves (13) with the same number as that of fuel oil jacking mechanisms and second positioning sleeves (14) with the same number as that of intake and exhaust jacking mechanisms are arranged below the positioning plate (12), the first positioning sleeves (13) with a plurality of through holes on the outer wall are coaxially arranged with fuel oil roller guide cylinder seats (5) in the fuel oil jacking mechanisms arranged on a machine body (4) below the first positioning sleeves, the positioning plate (12) is connected with the upper ends of the first positioning sleeves (13), and a datum line formed by connecting lines of the connecting parts of the first positioning sleeves (13) on the positioning plate (12) and the axis of a camshaft (1) arranged on a bearing shell (3) in the fuel oil jacking mechanism in a reverse hanging mode are positioned on the same vertical plane; the second locating sleeve (14) is located the vertical central plane of the inlet and exhaust roller guide cylinder seat (6) in the inlet and exhaust jacking mechanism, the axis of the second locating sleeve (14) is located on the vertical central plane of the roller (7) in the inlet and exhaust jacking mechanism, the position of the inlet and exhaust roller guide cylinder seat (6) enables the upper end of the second locating sleeve (14) to be connected with the locating plate (12), the connecting position of the second locating sleeve (14) and the locating plate (12) is located on a reference line, and the installation that the axis of the roller (7) of the inlet and exhaust jacking mechanism and the axis of the camshaft (1) are located on the same vertical plane is completed.
2. The installation positioning tool of the inverted camshaft of the diesel engine according to claim 1, characterized in that: the upper end face of the fuel roller guide cylinder seat (5) is provided with a first mounting hole which is positioned on the same vertical central plane with the camshaft (1) mounted on the bearing shell (3), and a positioning boss which is arranged in the middle of the lower end face of the first positioning sleeve (13) is coaxially matched in the first mounting hole.
3. The installation positioning tool of the inverted camshaft of the diesel engine according to claim 2, characterized in that: the surface of the positioning plate (12) is provided with a first positioning hole which is coaxial with a central hole of the upper end surface of the first positioning sleeve (13), the positioning plate (12) and the first positioning sleeve (13) are positioned and spliced by a first positioning pin (15) which penetrates through the first positioning hole and is inserted into the central hole of the upper end surface of the first positioning sleeve (13), and the central connecting lines of the first positioning pins (15) form a datum line which is vertically corresponding to and parallel to the axis of the camshaft (1).
4. The installation positioning tool of the inverted camshaft of the diesel engine according to claim 1, characterized in that: and a second mounting hole which is positioned on the same vertical central line with the roller (7) at the lower end of the air inlet and exhaust roller guide cylinder seat (6) is formed in the upper end surface of the air inlet and exhaust roller guide cylinder seat, and a positioning boss which is arranged in the middle of the lower end surface of the second positioning sleeve (14) is coaxially matched in the second mounting hole.
5. The installation and positioning tool for the inverted camshaft of the diesel engine according to claim 4, wherein: and a plurality of second positioning holes positioned on the datum line are formed in the middle plate surface of the positioning plate (12), the second positioning holes and the rollers (7) below the second positioning holes are positioned on the same vertical central line, the mounting positions of the two air inlet and exhaust roller guide cylinder seats (6) on the machine body (4) are adjusted until second positioning pins (16) penetrating through the two second positioning holes of the positioning plate (12) are respectively inserted into the second positioning holes at the upper ends of the second positioning sleeves (14) below, and the mounting of the axes of the rollers (7) and the axes of the cam shaft (1) on the same vertical plane is completed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222586942.5U CN218439489U (en) | 2022-09-29 | 2022-09-29 | Mounting and positioning tool for inverted camshaft of diesel engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222586942.5U CN218439489U (en) | 2022-09-29 | 2022-09-29 | Mounting and positioning tool for inverted camshaft of diesel engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218439489U true CN218439489U (en) | 2023-02-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222586942.5U Active CN218439489U (en) | 2022-09-29 | 2022-09-29 | Mounting and positioning tool for inverted camshaft of diesel engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218439489U (en) |
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2022
- 2022-09-29 CN CN202222586942.5U patent/CN218439489U/en active Active
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