Guiding tool and tool equipment for engine installation
By designing guided tooling, the crankshaft collision between the crankcase is avoided, the crankshaft scratch problem is solved, the production cost is reduced and the production efficiency is improved.
Patent Information
- Application Number
- CN202421867507.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-02
- Publication Date
- 2025-07-04
- Estimated Expiration
- 2034-08-02
AI Technical Summary
During the installation of the engine crankshaft, the crankshaft and the crankcase are prone to collision and cause scratches, which increases the cost of replacing the crankshaft and affects production efficiency.
A guide tooling is designed, including a tooling body and a positioning column. The second sub-post of the positioning column is cooperated with the positioning hole of the crankcase. The other side of the tooling body protrudes from the crankcase in the length direction to avoid collision between the crankshaft and the crankcase.
The crankshaft scratches are avoided through guided tooling, which reduces production costs and improves production efficiency.
Smart Images
Figure CN223057118U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of engine tooling, in particular to a guiding tooling and tooling equipment for engine installation. Background Art
[0002] In the related art, when installing the crankshaft of an engine, a lifting tool is required to place the crankshaft into the crankcase. During the placement process, the crankshaft will collide with the crankcase, resulting in scratches on the crankshaft. The scratched crankshaft cannot be repaired and needs to be replaced with a new one, which increases the additional cost and seriously affects the production efficiency. Among them, according to the problem data statistics of 50 engines, it is found that the unqualified quantity ratio of the crankshaft installation collision rate accounts for 70%. Content of the Utility Model
[0003] The utility model aims to solve at least one of the technical problems existing in the prior art. For this reason, an object of the utility model is to provide a guiding tooling for engine installation, which can avoid the collision between the crankshaft and the crankcase, thereby avoiding scratches on the crankshaft, further avoiding the replacement of the crankshaft, reducing the production cost and improving the production efficiency.
[0004] Another object of the utility model is to provide a tooling equipment for engine installation including the above guiding tooling.
[0005] The guiding tooling for engine installation according to the first aspect embodiment of the utility model includes: a tooling body; a positioning post, the positioning post is arranged on one side of the tooling body in the length direction, the positioning post includes a first sub-post and a second sub-post connected to each other, the first sub-post is located between the tooling body and the second sub-post, the second sub-post is adapted to cooperate with the positioning hole of the crankcase of the engine, and the outer diameter of the second sub-post is smaller than that of the first sub-post; wherein, when the guiding tooling is assembled to the crankcase, the other surface of the tooling body in the length direction protrudes from one surface of the crankcase.
[0006] According to the guiding tooling of the embodiment of the utility model, by arranging the positioning post on one side of the tooling body in the length direction, the second sub-post of the positioning post is adapted to cooperate with the positioning hole of the crankcase, and one end of the tooling body in the length direction protrudes from the end face of the crankcase after the guiding tooling is installed on the crankcase. Thus, during the crankshaft installation process, the collision between the crankshaft and the crankcase can be avoided, thereby avoiding scratches on the crankshaft, further avoiding the replacement of the crankshaft, reducing the production cost and improving the production efficiency.
[0007] According to some embodiments of the utility model, the cross-sectional area of the tooling body in the length direction of the tooling body gradually decreases along the direction away from the positioning post.
[0008] According to some embodiments of the present utility model, an inclined surface is formed on the other side in the length direction of the tooling body, and the inclined surface extends obliquely in the direction towards the positioning post.
[0009] According to some embodiments of the present utility model, the included angle between the inclined surface and the central axis of the tooling body is α, where α satisfies: 30° ≤ α ≤ 60°.
[0010] According to some embodiments of the present utility model, the tooling body includes a first body segment and a second body segment connected to each other. The outer diameter of the second body segment is less than or equal to the outer diameter of the first body segment, and the outer diameter of the second body segment gradually decreases in the direction away from the first body segment.
[0011] According to some embodiments of the present utility model, at least one limiting post is provided on one side in the length direction of the tooling body. The limiting post is parallel to the positioning post, and the length of the limiting post is less than or equal to the length of the first sub-post in the length direction of the tooling body.
[0012] According to some embodiments of the present utility model, the outer diameter of the limiting post is less than or equal to the outer diameter of the second sub-post.
[0013] According to some embodiments of the present utility model, the tooling body is a nylon part or a resin part.
[0014] The tooling device for engine installation according to the second aspect embodiment of the present utility model includes the guiding tooling for engine installation according to the first aspect embodiment of the present utility model above.
[0015] The additional aspects and advantages of the present utility model will be partly given in the following description, partly will become obvious from the following description, or will be understood through the practice of the present utility model. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] The above and / or additional aspects and advantages of the present utility model will become obvious and easy to understand from the description of the embodiments in conjunction with the following drawings, where:
[0017] Figure 1 is a schematic diagram of the guiding tooling according to the embodiment of the present utility model;
[0018] Figure 2 is Figure 1 a side view of the guiding tooling shown;
[0019] Figure 3 is a schematic diagram of the guiding tooling according to another embodiment of the present utility model;
[0020] Figure 4 is a schematic diagram of the guiding tooling, the crankcase and the crankshaft according to the embodiment of the present utility model.
[0021] Reference numerals:
[0022] 100: guiding tooling;
[0023] 10: tooling body; 101: inclined surface; 102: first body section; 103: second body section; 20: positioning post; 201: first sub-post; 202: second sub-post; 30: limiting post;
[0024] 200: crankcase; 210: crankshaft. Detailed implementation manners
[0025] Next, with reference to Figures 1-4 describe the guiding tooling 100 for engine installation according to the embodiment of the first aspect of the present utility model.
[0026] As Figures 1-4 shown, the guiding tooling 100 for engine installation according to the embodiment of the first aspect of the present utility model includes: a tooling body 10 and a positioning post 20.
[0027] Specifically, the positioning post 20 is provided on one side of the tooling body 10 in the length direction (for example, Figure 1 the up and down direction in
[0028] For example, in Figures 1-3 the example of
[0029] Refer to Figure 4, when the crankshaft 210 needs to be installed on the crankcase 200, the guiding tooling 100 can be first installed on the crankcase 200, that is, the second sub-column 202 of the guiding tooling 100 is fitted with the positioning hole of the crankcase 200. At this time, the first sub-column 201 abuts against the surface of the crankcase 200 where the positioning hole is provided, so as to install the guiding tooling 100 on the crankcase 200. After the guiding tooling 100 is assembled with the crankcase 200, the surface of the tooling body 10 on the side away from the positioning column 20 protrudes from the end face of the crankcase 200, that is, one end of the tooling body 10 extends outside the crankcase 200. Then, a lifting tool is used to lift the crankshaft 210 into the crankcase 200. During the placement process of the crankshaft 210, the guiding tooling 100 plays a guiding role, so that the guiding tooling 100 is located outside the crankshaft 210, and the crankshaft 210 moves along the guiding tooling 100 into the crankcase 200. Thus, the guiding tooling 100 can space the crankshaft 210 from the end face of the crankcase 200, avoiding collision between the crankshaft 210 and the crankcase 200, thereby avoiding scratching of the crankshaft 210, further avoiding replacement of the crankshaft 210, reducing production costs, and improving production efficiency.
[0030] According to the guiding tooling 100 of the embodiment of the present invention, by arranging the positioning column 20 on one side in the length direction of the tooling body 10, the second sub-column 202 of the positioning column 20 is adapted to be fitted with the positioning hole of the crankcase 200, and one end in the length direction of the tooling body 10 protrudes from the end face of the crankcase 200 after the guiding tooling 100 is installed on the crankcase 200. Thus, during the installation process of the crankshaft 210, collision between the crankshaft 210 and the crankcase 200 can be avoided, thereby avoiding scratching of the crankshaft 210, further avoiding replacement of the crankshaft 210, reducing production costs, and improving production efficiency.
[0031] According to some embodiments of the present invention, referring to Figures 1-3 , the cross-sectional area of the tooling body 10 in the length direction of the tooling body 10 gradually decreases along the direction away from the positioning column 20. That is to say, the cross-sectional area of one end of the tooling body 10 adjacent to the positioning column 20 is larger, the cross-sectional area of one end of the tooling body 10 away from the positioning column 20 is smaller, and the end of the tooling body 10 with a smaller cross-sectional area extends outside the crankcase 200. Thus, while the guiding tooling 100 plays a guiding role, interference between the guiding tooling 100 and the crankshaft 210 can be avoided, further avoiding scratching of the crankshaft 210, and at the same time, the weight and cost of the guiding tooling 100 can be reduced.
[0032] Further, as Figure 1 and Figure 2As shown, on the other side in the length direction of the tooling body 10, an inclined surface 101 is formed, and the inclined surface 101 extends obliquely in the direction towards the positioning post 20. The cross-sectional shape of the tooling body 10 is generally rectangular. A part of the surface of the tooling body 10 away from the positioning post 20 is inclined towards the positioning post 20 to form the inclined surface 101, and the inclined surface 101 is located at the corner of the tooling body 10. When installing the crankshaft 210, the inclined surface 101 is made to face the crankshaft 210. On the one hand, it can guide the crankshaft 210 into the crankcase 200; on the other hand, when the crankshaft 210 just enters the crankcase 200 through the guiding tooling 100, the inclined surface 101 can further increase the distance between the tooling body 10 and the crankshaft 210, further avoiding interference between the crankshaft 210 and the tooling body 10, and thus further reducing damage to the crankshaft 210.
[0033] According to some specific embodiments of the present invention, as Figure 1 shown, the included angle between the inclined surface 101 and the central axis of the tooling body 10 is α, where α satisfies: 30° ≤ α ≤ 60°. When α < 30°, the included angle between the inclined surface 101 and the central axis of the tooling body 10 is small, that is, the inclination angle of the inclined surface 101 is small, which will make the guiding effect of the guiding tooling 100 poor, and it is easy to interfere with the tooling body 10 at the initial stage of the process of installing the crankshaft 210, causing scratches on the crankshaft 210; when α > 60°, the included angle between the inclined surface 101 and the central axis of the tooling body 10 is large, which will make one end of the tooling body 10 heavier and the other end lighter, and the guiding tooling 100 is prone to tilt after being installed on the crankcase 200, resulting in a deviation in the installation position of the crankshaft. Therefore, by making α satisfy 30° ≤ α ≤ 60°, it is possible to avoid interference between the tooling body 10 and the crankshaft 210 at the initial stage of the process of installing the crankshaft 210, and at the same time make the position of the guiding tooling 100 stable, so that the crankshaft 210 can be installed in place at one time.
[0034] According to some other embodiments of the present invention, as Figure 3 shown, the tooling body 10 includes a first body section 102 and a second body section 103 connected to each other. The outer diameter of the second body section 103 is less than or equal to the outer diameter of the first body section 102, and the outer diameter of the second body section 103 gradually decreases along the direction away from the first body section 102. The cross-sectional shape of the tooling body 10 is circular, the shape of the first body section 102 is cylindrical, and the shape of the second body section 103 is frustum-shaped, that is, the entire outer peripheral surface of the second body section 103 constitutes the inclined surface 101. Thus, during the installation process of the guiding tooling 100, there is no need to distinguish the position where the inclined surface 101 is located, which can improve the installation efficiency, and the structure of the guiding tooling 100 is simple and convenient for processing.
[0035] Specifically, the guiding tooling 100 with a rectangular cross-sectional shape is the first tooling (as Figure 1As shown, the guiding tooling 100 with a circular cross-sectional shape is the second tooling (such as Figure 3 shown). Refer to Figure 4 . Install the crankcase 200. The first tooling and the second tooling are installed in the crankcase 200 opposite to each other, and the inclined surface 101 of the first tooling faces the second tooling, that is, the first tooling and the second tooling define a guiding channel. The sling hoists the crankshaft 210 above the crankcase 200 and is opposite to the above guiding channel. Then, the crankshaft 210 is moved downward and moves to the guiding channel under the guidance of the first tooling and the second tooling, and moves downward along the guiding channel until it moves to the crankshaft installation position of the crankcase 200. Thus, double guiding can be achieved, which can ensure the consistency of the installation of the crankshaft 210 and enable the crankshaft 210 to be installed in place at one time.
[0036] According to some embodiments of the present invention, at least one limiting post 30 is provided on the above-mentioned side in the length direction of the tooling body 10. The limiting post 30 is parallel to the positioning post 20, and the length of the limiting post 30 in the length direction of the tooling body 10 is less than or equal to the length of the first sub-post 201. For example, in Figure 1 and Figure 2 example, there is one limiting post 30. The limiting post 30 and the positioning post 20 are located on the same side in the length direction of the tooling body 10, and the limiting post 30 and the positioning post 20 can be arranged along the diagonal of the tooling body 10. Among them, when the end surface of the crankcase 200 where the positioning hole is provided is a horizontal plane, the length of the limiting post 30 can be made consistent with the length of the first sub-post 201, that is, the end surface of the free end of the limiting post 30 is flush with the end surface of the second sub-post 202 adjacent to the first sub-post 201. When the guiding tooling 100 is installed on the crankcase 200, both the second sub-post 202 and the limiting post 30 can abut against the end surface of the crankcase 200 where the positioning hole is provided. At this time, both the limiting post 30 and the second sub-post 202 play a limiting role, avoiding over-installation of the guiding tooling 100 and damaging the crankcase 200. When the end surface of the crankcase 200 where the positioning hole is provided is an inclined surface 101, the length of the limiting post 30 can be made less than the length of the first sub-post 201, that is, the end surface of the second sub-post 202 adjacent to the first sub-post 201 protrudes from the end surface of the free end of the limiting post 30. When the guiding tooling 100 is installed on the crankcase 200, both the second sub-post 202 and the limiting post 30 can abut against the end surface of the crankcase 200 where the positioning hole is provided. At this time, both the limiting post 30 and the second sub-post 202 play a limiting role, and at the same time, it can avoid over-abutting of the limiting post 30 against the above end surface and damaging the crankcase 200.
[0037] Figure 1 shows one limiting post 30 for illustrative purposes, but those of ordinary skill in the art can clearly understand that after reading the technical solution of this application, applying this solution to the technical solutions of two, three or more cartridges also falls within the protection scope of the present invention.
[0038] Furthermore, if Figure 1 and Figure 2 As shown, the outer diameter of the limiting column 30 is less than or equal to the outer diameter of the second sub-column 202. In this way, the limiting column 30 can play a limiting role while avoiding interference with the positioning column 20, ensuring that the positioning column 20 has sufficient installation space.
[0039] In some optional embodiments, the tool body 10 is a nylon part or a resin part. Both nylon parts and resin parts have the advantages of good toughness, strong wear resistance, high bending strength, not easy to deform, environmental protection and harmless to the human body. By using nylon or resin to process the tool body 10, the tool body 10 can be prevented from scratching the surface of the crankshaft 210, and the cost is low and the processing is convenient.
[0040] The tooling equipment for engine installation according to the embodiment of the second aspect of the utility model comprises the guide tooling 100 for engine installation according to the embodiment of the first aspect of the utility model.
[0041] According to the tooling equipment for engine installation according to the embodiment of the utility model, by adopting the above-mentioned guide tooling 100 for engine installation, the assembly efficiency of the engine can be improved, and the cost of the tooling equipment can be reduced, thereby achieving cost reduction and efficiency improvement.
[0042] Other structures and operations of the tooling equipment for engine installation according to the embodiment of the utility model are known to ordinary technicians in the field and will not be described in detail here.
[0043] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.
[0044] In the description of the present utility model, the "first feature" and "second feature" may include one or more of such features. In the description of the present utility model, the first feature being "above" or "below" the second feature may include the first and second features being in direct contact, or may include the first and second features not being in direct contact but being in contact through additional features therebetween. In the description of the present utility model, the first feature being "above", "over" and "on top of" the second feature includes the first feature being directly above and obliquely above the second feature, or merely indicating that the first feature has a higher horizontal height than the second feature.
[0045] In the description of the present application, it should be noted that unless otherwise clearly specified and defined, the terms "installed", "connected" and "coupled" shall be construed in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected, or indirectly connected through an intermediate medium, and it may be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application may be understood according to specific circumstances.
[0046] In the description of this specification, the descriptions with reference to terms such as "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples", etc. mean that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present utility model. In this specification, the schematic descriptions of the above terms do not necessarily refer to the same embodiment or example.
[0047] Although the embodiments of the present utility model have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present utility model. The scope of the present utility model is defined by the claims and their equivalents.
Claims
1. A guiding tool for engine installation, characterized in that, Comprising: The tooling body; A positioning post, the positioning post is arranged on one side in the length direction of the tooling body, the positioning post includes a first sub-post and a second sub-post connected to each other, the first sub-post is located between the tooling body and the second sub-post, and the second sub-post is adapted to cooperate with a positioning hole of a crankcase of an engine, and an outer diameter of the second sub-post is smaller than an outer diameter of the first sub-post; Wherein, when the guiding tooling is assembled to the crankcase, a surface on the other side in the length direction of the tooling body protrudes from a surface on one side of the crankcase; A cross-sectional area of the tooling body in the length direction of the tooling body gradually decreases along a direction away from the positioning post.
2. The guiding tooling for engine installation according to claim 1, wherein A slope is formed on the other side in the length direction of the tooling body, and the slope extends obliquely along a direction towards the positioning post.
3. The guiding tooling for engine installation according to claim 2, characterized in that, An included angle between the slope and a central axis of the tooling body is ɑ, wherein, the ɑ satisfies: 30°≤ɑ≤60°.
4. The guiding tooling for engine installation according to claim 1, characterized in that The tooling body includes a first body section and a second body section connected to each other, an outer diameter of the second body section is less than or equal to an outer diameter of the first body section, and the outer diameter of the second body section gradually decreases along a direction away from the first body section.
5. The guiding tooling for engine installation according to any one of claims 1-4, characterized in that, At least one limiting post is arranged on the one side in the length direction of the tooling body, the limiting post is parallel to the positioning post, and a length of the limiting post in the length direction of the tooling body is less than or equal to a length of the first sub-post.
6. The guiding tooling for engine installation according to claim 5, characterized in that, An outer diameter of the limiting post is less than or equal to an outer diameter of the second sub-post.
7. The guiding tooling for engine installation according to claim 1, characterized in that, The tooling body is a nylon part or a resin part.
8. A tooling device for engine installation, characterized in that, Comprising the guiding tooling for engine installation according to any one of claims 1-7.