Mounting for power unit

Abstract

The utility model provides an installation part for a power unit. The installation part can be prevented from being damaged due to the holding force of a jig. The mounting piece for the power unit comprises a power unit mounting seat, the power unit mounting seat comprises a first component and a second component, the second component comprises a power unit fastening part and a combination part, the power unit fastening part is used for fastening the power unit, the combination part is screwed to the first component, and the power unit fastening part is used for fastening the power unit. A jig is used when the combination part is screwed to the first component, the combination part is provided with at least one jig embedding part, the jig embedding part is used for being embedded with the jig, and the jig embedding part is a curved-surface-shaped concave part.

Description

TECHNICAL FIELD

[0001] The utility model relates to a mounting piece, especially a mounting piece for a power unit. BACKGROUND

[0002] The mounting piece for a vehicle engine comprises a first member fastened to a vehicle body and a second member fastened to an engine, and the first member and the second member are connected in a screwing manner. When screwing the first member and the second member, the second member needs to be fixed by a jig. The jig usually clamps the second member on opposite sides at the shortest distance from the screwing axis, so the jig needs to provide a large holding force, which easily damages the second member due to the holding force of the jig. Therefore, it is necessary to improve the mounting piece to overcome the above problems. SUMMARY

[0003] The utility model provides a mounting piece for a power unit, which can avoid damage to the mounting piece due to the holding force of the jig.

[0004] The utility model provides a mounting piece for a power unit, which comprises a power unit mounting seat comprising a first member and a second member, wherein the second member comprises a power unit fastening part and a combination part, the power unit fastening part is used to fasten to the power unit, the combination part is screwed to the first member, a jig is used when screwing the combination part to the first member, the combination part has at least one jig fitting part, the jig fitting part is used to be mutually fitted with the jig, and the jig fitting part is a curved concave part.

[0005] The utility model provides a mounting piece for a power unit, which comprises a power unit mounting seat comprising a first member and a second member, wherein the second member comprises a power unit fastening part and a combination part, the power unit fastening part is used to fasten to the power unit, the combination part is screwed to the first member, a jig is used when screwing the combination part to the first member, the combination part has at least one jig fitting part, the jig fitting part is used to be mutually fitted with the jig, and the jig fitting part is a curved convex part.

[0006] In the embodiment of the utility model, when observed in the direction parallel to the screwing axis of the combination part and the first member, the combination part is a rectangle, the jig fitting part is arranged on the long side of the rectangle, and when observed in the direction parallel to the short side of the rectangle, the jig fitting part is located at a position not overlapping the screwing axis.

[0007] In the embodiment of the utility model, the contact area between the mutually embedded jig embedding portion and the jig, the distance between the screwing axis of the combining portion and the first component and the jig embedding portion, and the fastening torque between the first component and the second component are used to calculate the stress borne by the jig embedding portion, and the contact area is arranged to make the stress lower than the allowable stress.

[0008] In the embodiment of the utility model, the jig embedding portion comprises two jig embedding portions, and the positions of the two jig embedding portions are rotationally symmetrical to the screwing axis of the combining portion and the first component.

[0009] In the embodiment of the utility model, the jig comprises a combining portion embedding portion and an extension portion, the combining portion embedding portion is embedded into the jig embedding portion, the extension portion extends from the combining portion embedding portion along the direction parallel to the long side of the rectangle and along the shape of the combining portion, and the extension portion overlaps the screwing axis when viewed along the direction parallel to the short side of the rectangle.

[0010] In the embodiment of the utility model, the first component and the second component are mutually screwed at multiple positions, the first component and the second component have a reference screwing axis at one of the multiple positions, the reference screwing axis is the reference of the attachment position of the first component and the second component, and the position of the jig embedding portion is determined based on the distance between the jig embedding portion and the reference screwing axis.

[0011] In the embodiment of the utility model, the combining portion is elliptical when viewed along the direction parallel to the screwing axis of the combining portion and the first component, the jig embedding portion is arranged along the long axis direction of the elliptical shape, and the jig embedding portion is located at a position not overlapping the screwing axis when viewed along the direction parallel to the short axis of the elliptical shape.

[0012] In the embodiment of the utility model, the jig comprises a combining portion embedding portion and an extension portion, the combining portion embedding portion is embedded into the jig embedding portion, the extension portion extends from the combining portion embedding portion along the direction parallel to the long axis of the elliptical shape and along the shape of the combining portion, and the extension portion overlaps the screwing axis when viewed along the direction parallel to the short axis of the elliptical shape.

[0013] Based on the above, in the mounting piece for the power unit of the utility model, the jig embedding portion of the second component is a curved surface-shaped recess or a curved surface-shaped protrusion. Accordingly, the fixation of the jig on the second component can be strengthened through the mutual embedding of the curved surface-shaped recess or the curved surface-shaped protrusion and the jig, so that the jig does not need to provide a larger holding force to avoid damage to the second component due to the holding force of the jig.

[0014] In order to make the above features and advantages of the present application more obvious and easy to understand, the following embodiments are described in detail below, and the detailed description is made with reference to the accompanying drawings. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 is a schematic view of a mounting member for a power unit according to an embodiment of the present application;

[0016] Figure 2 is a side view of the mounting member of Figure 1 ;

[0017] Figure 3 is a perspective view of a second member of Figure 1 ;

[0018] Figure 4 is a perspective view of a coupling portion of Figure 3 ;

[0019] Figure 5 is a top view of the coupling portion of Figure 4 ;

[0020] Figure 6 shows a jig clamping the coupling portion of Figure 5 ;

[0021] Figure 7 is a top view of the coupling portion according to another embodiment of the present application;

[0022] Figure 8 is a top view of the coupling portion according to another embodiment of the present application;

[0023] Figure 9 is a top view of the coupling portion according to another embodiment of the present application.

[0024] BRIEF DESCRIPTION OF DRAWINGS

[0025] 50, 50': jig;

[0026] 52, 52': coupling portion fitting portion;

[0027] 54, 54': extension portion;

[0028] 100: mounting member;

[0029] 110: power unit mounting seat;

[0030] 112: first member;

[0031] 112a, 1141a: assembly portion;

[0032] 114, 114": second member;

[0033] 1141: power unit fastening portion;

[0034] 1142, 1142', 1142”: Joint;

[0035] 1142a, 1142a', 1142a”: Fixture fitting part;

[0036] A, A': Threaded axis;

[0037] D: Direction;

[0038] a, c, d: distance;

[0039] b, e: Overlapping range

[0040] L1: Long side;

[0041] L1”: Long axis;

[0042] L2: Short side;

[0043] L2”: Short axis;

[0044] P, P”: Boundary point;

[0045] M, M', M”: Main body of the joint;

[0046] R: Rubber section;

[0047] T、T'、T”: convex platform. Detailed Implementation

[0048] Figure 1 This is a schematic diagram of a mounting component for a power unit according to an embodiment of the present invention. Figure 2 yes Figure 1 Side view of the mounting components. Figure 3 yes Figure 1 A three-dimensional view of the second component. Please refer to... Figures 1 to 3 The mounting bracket 100 for a power unit (e.g., a vehicle engine or drive motor) in this embodiment includes a power unit mounting base 110. The power unit mounting base 110 includes a first component 112 and a second component 114. The first component 112 is fastened to the vehicle body by screws or other suitable means via an assembly portion 112a. The second component 114 includes a connected power unit fastening portion 1141 and a connecting portion 1142. The power unit fastening portion 1141 is fastened to the power unit by screws or other suitable means via the assembly portion 1141a. The connecting portion 1142 is screwed onto the first component 112 along a threaded axis A.

[0049] Figure 4 yes Figure 3 A three-dimensional view of the joint. Figure 5 yes Figure 4 Top view of the joint.Figure 6 The jig is shown clamping Figure 5 the joint. Please refer to Figures 4 to 6 , when the joint 1142 is screwed to the first member 112 (shown in Figure 1 and Figure 2 ) using the jig 50 shown in Figure 6 to clamp the joint 1142 to resist the tightening torque applied when screwing to make the joint 1142 unable to rotate. The joint 1142 has two jig fitting parts 1142a for mutual fitting with the jig 50, which are curved surface-shaped recesses. In other embodiments, the joint 1142 can only have one jig fitting part 1142a, which is not limited by the present application.

[0050] As described above, in the mounting 100 for the power unit of the present embodiment, the jig fitting part 1142a of the second member 114 is a curved surface-shaped recess. Accordingly, the fixation of the jig 50 to the second member 114 can be strengthened by the mutual fitting of the curved surface-shaped recess and the jig 50, so that the jig 50 does not need to provide a larger holding force to avoid damage to the second member 114 due to the holding force of the jig 50. In addition, by forming the jig fitting part 1142a as a curved surface-shaped recess, the mounting 100 can be lightened.

[0051] In detail, the joint 1142 of the present embodiment includes a joint body M and a rubber part R, the rubber part R partially covers the joint body M, the joint body M is screwed to the first member 112 along the screwing axis A, and the jig fitting part 1142a is formed on the boss T of the joint body M.

[0052] In the present embodiment, the positions of the two jig fitting parts 1142a are rotationally symmetrical to the screwing axis A of the joint 1142 and the first member 112 as shown in Figure 5 . Accordingly, the holding force of the jig 50 can be further inhibited, and each jig 50 can have the same shape corresponding to the jig fitting part 1142a without providing different shaped jigs 50.

[0053] Further, when viewed in a direction parallel to the screwing axis A of the joint 1142 and the first member 112, the boss T of the joint body M of the joint 1142 is rectangular as shown in Figure 5 . The jig fitting part 1142a is provided on the long side L1 of the rectangle, and when viewed in a direction D parallel to the short side L2 of the rectangle, the jig fitting part 1142a is located at a position not overlapping the screwing axis A. Specifically, the end of the jig fitting part 1142a is Figure 5The intersection point P of the concave arc and the convex arc, as viewed in the direction D, is located away from the screwing axis A (as shown by the distance a) by the relative positions of the intersection point P and the screwing axis A. With this configuration, the jig 50 holds the second member 114 at a position away from the screwing axis A by a large distance, so the jig 50 provides a small holding force sufficient to fix the second member 114, thereby avoiding damage to the second member 114 by the holding force of the jig 50. Figure 5 The distance a) shown. With this configuration, the jig 50 holds the second member 114 at a position away from the screwing axis A by a large distance, so the jig 50 provides a small holding force sufficient to fix the second member 114, thereby avoiding damage to the second member 114 by the holding force of the jig 50.

[0054] In use Figure 6 The jig 50 holds the boss T of the joint body M of the joint 1142 and screws the joint 1142 to the first member 112 (shown in Figure 1 and Figure 2 ), the stress borne by the jig fitting portion 1142a can be calculated from the contact area between the mutually fitting jig fitting portion 1142a and the jig 50, the distance d between the screwing axis A of the joint 1142 and the jig fitting portion 1142a, and the fastening torque between the first member 112 and the second member 114, the detailed calculation method of which is known in the art and will not be described here. Based on the material of the joint body M of the joint 1142, the allowable stress at which the boss T of the joint body M of the joint 1142 is not damaged when subjected to the clamping force of the jig 50 can be known. In the present embodiment, in the case where the distance d between the screwing axis A and the jig fitting portion 1142a is known and the fastening torque between the first member 112 and the second member 114 is known, by setting the contact area between the jig fitting portion 1142a and the jig 50 to an appropriate value, the stress borne by the jig fitting portion 1142a can be made lower than the allowable stress, to surely avoid damage to the boss T of the joint body M of the joint 1142.

[0055] Please refer to Figure 6 In the present embodiment, the jig 50 includes a joint fitting portion 52 for fitting to the jig fitting portion 1142a and an extension portion 54 extending from the joint fitting portion 52 in a direction parallel to the long side L1 of the rectangle and along the shape of the boss T of the joint body M of the joint 1142. As viewed in the direction D parallel to the short side L2 of the rectangle, the extension portion 54 overlaps the screwing axis A (as shown by the overlapping range b). Accordingly, after the screwing of the first member 112 and the second member 114 is released, the extension portion 54 can serve as a jig for the second member 114. Figure 6

[0056] Figure 7 is the top view of the joint of another embodiment of the present application. In Figure 7 the embodiment shown, the first member 112 (shown in Figure 1 ​and Figure 2 The second component 114 can be located in multiple positions (e.g.) Figure 7 The positions of the threaded axes A and A' shown are threaded together, and the first member 112 (shown in...) Figure 1 and Figure 2 The first component 112 and the second component 114 have a reference threaded axis (i.e., threaded axis A) at the position of the threaded axis A, said reference threaded axis being the first component 112 (shown in...). Figure 1 and Figure 2 The reference for the attachment position of the first member 112 and the second member 114. In this case, the position of the jig fitting portion 1142a is determined based on the distance between the jig fitting portion 1142a and the reference threaded axis. Accordingly, it is possible to improve the position of the first member 112 (shown in Figure 1 and Figure 2 The reliability of the connection between the first component and the second component 114.

[0057] This utility model does not limit the shape of the fitting part of the fixture, and examples are given below. Figure 8 This is a top view of the joint portion according to another embodiment of the present invention. Figure 8 The difference between the illustrated embodiment and the foregoing embodiment is that, Figure 8 The fixture fitting part 1142a' of the main body M' of the joint 1142' shown is a curved protrusion, and the fixture can also strengthen the fixation of the second component by the mutual fitting of the curved protrusion and the fixture.

[0058] Figure 9 This is a top view of the joint portion according to another embodiment of the present invention. Figure 9 The main difference between the illustrated embodiment and the aforementioned embodiments lies in the shape of the joint. Specifically, in Figure 9 In the illustrated embodiment, when parallel to the joint 1142” and the first member 112 (shown in Figure 1 and Figure 2 When viewed along the threaded axis A, the boss T” of the main body M” of the joint portion 1142” is elliptical. The fixture fitting portion 1142a” is arranged along the major axis L1” of the ellipse, and when viewed along the direction D parallel to the minor axis L2” of the ellipse, the fixture fitting portion 1142a” is located in a position that does not overlap with the threaded axis A. Specifically, the end of the fixture fitting portion 1142a” is Figure 5 The intersection point P” of the concave and convex arcs shown, when viewed along direction D, indicates that the fixture fitting part 1142a does not overlap with the threaded axis A, based on the relative position of the intersection point P” and the threaded axis A. Figure 9The distance c) shown. By this configuration, the jig 50' holds the second member 114" at a position at a larger distance from the screwing axis A, so the jig 50' provides a smaller holding force enough to fix the second member 114", thereby avoiding damage of the second member 114" by the holding force of the jig 50'.

[0059] Please refer to Figure 9 In the present embodiment, the jig 50' includes a joint fitting portion 52' to be fitted to the jig fitting portion 1142a" and an extension portion 54' extending from the joint fitting portion 52' in a direction parallel to the long axis L1" of the ellipse and along the shape of the boss T" of the joint body M" of the joint 1142". When viewed in a direction D parallel to the short axis L2" of the ellipse, the extension portion 54' overlaps the screwing axis A (as shown by the overlap range e) shown. Figure 9 Accordingly, after the screwing of the first member 112 (shown in Figure 1 and Figure 2 ) and the second member 114" is released, the extension portion 54' can serve as a jig for the second member 114".

[0060] In summary, in the mounting member for a power unit of the present application, the jig fitting portion of the second member is a curved surface-shaped recess or a curved surface-shaped protrusion. Accordingly, the fixation of the jig to the second member can be strengthened by the mutual fitting of the curved surface-shaped recess or the curved surface-shaped protrusion and the jig, so the jig does not need to provide a larger holding force to avoid damage of the second member by the holding force of the jig.

[0061] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, and not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand: it can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement to part or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A mounting component for a power unit, characterized in that, include: The power unit mounting base includes a first component and a second component. The second component includes a power unit fastening part and a connecting part. The power unit fastening part is used to fasten the power unit. The joint is screwed onto the first component, and a jig is used when screwing the joint onto the first component. The connecting portion has at least one fixture fitting portion, which is used to engage with the fixture. The jig fitting portion is a curved concave portion.

2. A mounting component for a power unit, characterized in that, include: The power unit mounting base includes a first component and a second component. The second component includes a power unit fastening part and a connecting part. The power unit fastening part is used to fasten the power unit. The joint is screwed onto the first component, and a jig is used when screwing the joint onto the first component. The connecting portion has at least one fixture fitting portion, which is used to engage with the fixture. The jig fitting portion is a curved convex portion.

3. The mounting component for a power unit according to claim 1 or 2, characterized in that, When viewed along a direction parallel to the threaded axis of the joint and the first component, the joint is rectangular. The fixture fitting part is located on the long side of the rectangle. When viewed along the direction parallel to the short side of the rectangle, the fixture fitting portion is located in a position that does not overlap with the threaded axis.

4. The mounting component for a power unit according to claim 1 or 2, characterized in that, The contact area between the mating parts of the fixture and the fixture itself, the distance between the threaded axis of the joint and the first component and the mating part of the fixture, and the fastening torque between the first component and the second component are used to calculate the stress borne by the mating part of the fixture. The contact area is set such that the stress is below the allowable stress.

5. The mounting component for a power unit according to claim 1 or 2, characterized in that, The fixture fitting portion includes two fixture fitting portions, the positions of which are rotationally symmetrical about the threaded axis between the joint portion and the first component.

6. The mounting component for a power unit according to claim 3, characterized in that, The fixture includes a joint, an interlocking part, and an extension. The connecting and fitting portion is used to fit into the fixture fitting portion. The extension extends from the mating portion along a direction parallel to the long side of the rectangle and along the shape of the mating portion. When viewed along the direction parallel to the short side of the rectangle, the extension overlaps the threaded axis.

7. The mounting component for a power unit according to claim 1 or 2, characterized in that, The first component and the second component are screwed together at multiple locations, and the first component and the second component have a reference screwing axis at one of these multiple locations. The reference screwing axis serves as a reference for the attachment position of the first component and the second component. The position of the fixture fitting part is determined based on the distance between the fixture fitting part and the reference threaded axis.

8. The mounting component for a power unit according to claim 1 or 2, characterized in that, When viewed along a direction parallel to the threaded axis of the joint and the first component, the joint is elliptical. The fitting portion of the fixture is arranged along the major axis of the ellipse. When viewed along a direction parallel to the minor axis of the ellipse, the fixture fitting portion is located in a position that does not overlap with the threaded axis.

9. The mounting component for a power unit according to claim 8, characterized in that, The fixture includes a joint, an interlocking part, and an extension. The connecting and fitting portion is used to fit into the fixture fitting portion. The extension extends from the mating portion along a direction parallel to the major axis of the ellipse and along the shape of the mating portion. When viewed along the direction parallel to the minor axis of the ellipse, the extension overlaps the threaded axis.

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