Power and guide seat component assembly tool for a mower

Abstract

The application discloses a power and guide seat component assembling tool for a mower, and relates to the technical field of the mower. The tool comprises a tool main body. A groove hole matched with the diameter of an output shaft of an engine is arranged in the middle of the tool main body, so as to limit the output shaft of the engine in the radial direction. Limiting components for limiting the guide seat component in the radial direction are arranged at the two ends of the tool main body. The limiting components are used for coaxially arranging the guide seat component with the groove hole. The application can realize coaxial arrangement of the guide seat component and the output shaft of the engine.

Description

Technical Field

[0001] This application relates to the field of lawnmower technology, and in particular to an assembly tooling for the power and guide seat components of a lawnmower. Background Technology

[0002] Currently, in gasoline-powered ride-on lawnmowers, the CVT (continuously variable transmission) mechanism needs to be coaxial with the engine. If they are not coaxial, the transmission belt that enables the transmission between the two will suffer severe wear.

[0003] The CVT mechanism needs to be fixedly installed through the guide seat component, which requires the guide seat component to be in a more precise position relative to the engine. If the guide seat component can be coaxial with the engine's output shaft, the CVT mechanism can naturally be coaxial with the engine's output shaft.

[0004] Therefore, in view of the above-mentioned technical problems, how to ensure that the guide seat component is coaxially set with the output shaft of the engine is a technical problem that needs to be solved by those skilled in the art. Utility Model Content

[0005] The purpose of this application is to provide an assembly fixture for the power and guide seat components of a lawnmower, which enables the guide seat components to be coaxially arranged with the engine output shaft.

[0006] To achieve the above objectives, this application provides a tooling for assembling the power and guide seat components of a lawnmower, including a tooling body. The tooling body has a slot in the middle that matches the diameter of the engine's output shaft to radially limit the output shaft of the engine. The tooling body has limiting components at both ends for radially limiting the guide seat components. The limiting components are used to make the guide seat components coaxial with the slot.

[0007] Preferably, the limiting component includes a plurality of positioning holes provided on the tooling body and a plurality of positioning posts provided on the guide seat component, wherein the positioning posts correspond one-to-one with the positioning holes and are inserted into each other, and the diameter of the positioning posts matches the inner diameter of the positioning holes.

[0008] Preferably, a plurality of the positioning holes are distributed on a distribution circle centered on the axis of the slot, and the positioning post is detachably mounted on the guide seat component.

[0009] Preferably, the engine and the guide seat component are fixedly mounted on both sides of the frame mounting plate, and the frame mounting plate has a through hole for the output shaft of the engine to pass through. The tooling body and the guide seat component are located on the same side of the frame mounting plate.

[0010] Preferably, the tooling body has a plurality of limiting protrusions on the side facing the frame fixing plate, and the frame fixing plate has limiting grooves that correspond to and cooperate with the limiting protrusions. When the limiting protrusions cooperate with the limiting grooves, the tooling body abuts against the frame fixing plate.

[0011] Preferably, the tooling body has a limiting protrusion on the side facing the frame fixing plate, the limiting protrusion is provided on the limiting protrusion, and the limiting protrusion abuts against the frame fixing plate.

[0012] Preferably, the limiting protrusion has a frustum section at its end and a columnar section at its bottom. The top diameter of the frustum section is small and the bottom diameter is large. The bottom diameter of the frustum section is the same as the diameter of the columnar section. The columnar section can be inserted into the limiting groove.

[0013] Preferably, the guide seat component has a hollowed-out center, and the limiting protrusion passes through the hollowed-out center of the guide seat component and abuts against the frame fixing plate.

[0014] Preferably, the guide seat component and the engine are fixed to the frame mounting plate by bolts.

[0015] Compared to the aforementioned background technology, the tooling of this application can match the output shaft of the engine through a slot, so that the output shaft of the engine and the tooling body remain relatively stationary in the radial direction. The tooling is also connected to the guide seat component through a limiting component, thereby limiting the radial direction of the guide seat component. At the same time, when the limiting component connects the guide seat component and the tooling body, it can also make the guide seat component coaxial with the slot, so that the guide seat component and the output shaft in the slot are coaxial. Based on this, no matter how the position of the engine or the guide seat component is changed, the engine and the guide seat component can move synchronously, ensuring that even if there is a certain offset when assembling the engine or the guide seat component, the guide seat component can still be coaxial with the output shaft of the engine. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this application. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the power and guide seat assembly tooling, guide seat components, and engine assembly structure of the lawnmower provided in the embodiments of this application.

[0018] Figure 2This is a schematic diagram of the assembly structure of the tooling body, guide seat component, and frame fixing plate provided in the embodiments of this application;

[0019] Figure 3 This is a first-view structural schematic diagram of the assembly tooling for the power and guide seat components of the lawnmower provided in the embodiments of this application;

[0020] Figure 4 This is a second-view structural diagram of the assembly tooling for the power and guide seat components of the lawnmower provided in the embodiments of this application.

[0021] In the diagram: 1-Main tooling; 2-Guide seat component; 3-Chassis fixing plate; 4-Engine; 5-Positioning post; 11-Slot; 12-Positioning hole; 13-Limiting protrusion; 14-Limiting protrusion; 31-Through hole; 41-Output shaft. Detailed Implementation

[0022] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0023] It should be noted that in this embodiment, the orientation or positional relationship indicated by terms such as "upper," "lower," "front," and "rear" is based on the orientation or positional relationship shown in the accompanying drawings. It is used only for the convenience of describing this application and for simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation of this application. Furthermore, "first," "second," "third," and "fourth" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0024] To enable those skilled in the art to better understand the present application, the present application will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0025] like Figure 1As shown, in this embodiment, a tooling for assembling the power and guide seat component 2 of a lawnmower is provided, including a tooling body 1. A slot 11 is provided in the middle of the tooling body 1. The slot 11 can be a through hole or a blind hole, ensuring that the output shaft 41 of the engine 4 can be inserted into the slot 11. It should be noted that the diameter of the slot 11 on the tooling body 1 should match the diameter of the output shaft 41, so that after the output shaft 41 is inserted into the slot 11, the tooling body 1 and the output shaft 41 can remain relatively stationary in the radial direction. Of course, in the actual processing, due to the processing accuracy, if the diameter of the output shaft 41 and the diameter of the slot 11 are exactly the same, there may be a problem that the two cannot be inserted. Therefore, the diameter of the slot 11 can be slightly larger than the diameter of the output shaft 41, so that the output shaft 41 can be smoothly inserted into the slot 11, but it should be ensured that the two can remain relatively stationary in the radial direction.

[0026] Limiting components are provided at both ends of the tooling body 1. The tooling body 1 is limited and connected to the guide seat component 2 through the limiting components, so that the tooling body 1 and the guide seat component 2 remain relatively stationary in the radial direction. In addition, when the limiting components connect the tooling body 1 and the guide seat component 2, the guide seat component 2 can also be coaxially arranged with the slot 11, so that the guide seat component 2 is coaxially arranged with the output shaft 41.

[0027] It should be noted that, in order to ensure that the guide seat component 2 and the slot 11 are coaxially set, the slot 11 can be machined on the tooling body 1 with the central axis of the guide seat component 2 as the machining center when the limiting component connects the two. The specific machining method will not be detailed here, but can be referred to the existing technology.

[0028] In summary, the tooling of this application can be matched with the output shaft 41 of the engine 4 through the slot 11, so that the output shaft 41 of the engine 4 and the tooling body 1 remain relatively stationary in the radial direction. The tooling is also connected to the guide seat component 2 through the limiting component, thereby limiting the radial direction of the guide seat component 2. At the same time, when the limiting component connects the guide seat component 2 and the tooling body 1, it can also make the guide seat component 2 coaxial with the slot 11, so that the guide seat component 2 and the output shaft 41 in the slot 11 are coaxial. Based on this, no matter how the position of the engine 4 or the guide seat component 2 is changed, the engine 4 and the guide seat component 2 can move synchronously, ensuring that even if there is a certain offset when assembling the engine 4 or the guide seat component 2, the guide seat component 2 can still be coaxial with the output shaft 41 of the engine 4.

[0029] There are various ways to set the limiting component, as long as the guide seat component 2 and the tooling body 1 remain relatively stationary in the radial direction. For example, the method of snap-fit, plug-in, threaded connection, etc. will not be described in detail here, but all of them fall within the protection scope of this application.

[0030] This application implements the limiting function of the limiting component through a plug-in connection. Specifically, the limiting component includes several positioning holes 12 provided on the tooling body 1. Please refer to... Figure 3 The number of positioning holes 12 is at least two. Correspondingly, the guide seat component 2 is provided with positioning pins 5 that insert into the positioning holes 12. The positioning pins 5 correspond one-to-one with the positioning holes 12 and are inserted into each other. The axial direction of the positioning holes 12 and the positioning pins 5 is consistent with the axial direction of the guide seat component 2, and the diameter of the positioning pins 5 matches the inner diameter of the positioning holes 12. The cooperation of at least two positioning pins and positioning holes 12 can keep the guide seat component 2 and the tooling body 1 stationary in the radial direction. Of course, the diameter of the positioning holes 12 and positioning pins 5 can be referred to the cooperation form of the output shaft 41 and the slot hole 11. In an ideal case, the diameters of the positioning holes 12 and positioning pins 5 are the same. However, in actual processing, the diameter of the positioning holes 12 should be slightly larger than the diameter of the positioning pins. But it is necessary to ensure that the positioning holes 12 and positioning pins 5 do not overlap in the radial direction. This will not be elaborated here.

[0031] In some embodiments, the number of positioning holes 12 and positioning pins 5 is four. Two positioning holes 12 are distributed at one end of the tooling body 1, and the other two positioning holes 12 are distributed at the other end of the tooling body 1. Based on this, since the guide seat component 2 is generally annular, the four positioning holes 12 can be distributed on a distribution circle with the axis of the slot hole 11 as the center, thereby forming four regularly distributed positioning holes 12, reducing the processing difficulty of the positioning holes 12. Of course, there are no restrictions on the specific setting method of the positioning holes 12. The positioning holes 12 can also be set in an irregular distribution manner, as long as the positioning holes 12 can cooperate with the positioning pins 5 on the guide seat component 2.

[0032] Furthermore, the tooling body and the guide seat component 2 can be detachably connected through the cooperation of the positioning pin 5 and the positioning hole 12. Specifically, the positioning pin 5 and the positioning hole 12 are both arranged along the axial direction of the guide seat component 2. Therefore, when the positioning pin 5 and the positioning hole 12 are aligned, only axial movement is needed to achieve the insertion of the positioning pin 5 and the positioning hole 12, thus completing the radial limiting of the guide seat component 2 and the tooling body. However, in the axial direction, the two can slide relative to each other. Therefore, when the tooling body is not needed, it is only necessary to detach the tooling body from the positioning pin 5 along the axial direction, thus achieving the detachable connection between the tooling body and the guide seat component 2, providing conditions for the guide seat component 2 to connect to the CVT mechanism.

[0033] The presence of the positioning pin 5 may also affect the assembly of the CVT mechanism and the guide seat component 2. Therefore, the positioning pin 5 can also be connected to the guide seat component 2 in a detachable manner, such as by threaded connection or plug-in connection. Threaded connection will not be elaborated here, as it achieves a detachable connection through threads. Plug-in connection involves setting a socket on the guide seat component 2 and inserting the positioning pin 5 into the socket. Of course, to ensure high stability after the positioning pin 5 is connected to the guide seat component 2 and to improve the reliability of the connection between the guide seat component 2 and the tooling body, the positioning pin 5 can be interference-fitted with the socket. This allows the positioning pin 5 to be stably inserted into the socket without external force. Alternatively, the positioning pin 5 can be pulled out by external force, achieving a detachable connection between the positioning pin 5 and the guide seat component 2.

[0034] After the output shaft 41 of the engine 4 is coaxially set with the guide seat component 2 via the tooling body 1, the engine 4 and the guide seat component 2 can be fixed to both sides of the frame fixing plate 3. The frame fixing plate 3 is a component on the lawnmower, used to fix and support the engine 4 and the CVT mechanism. The frame fixing plate 3 has a through hole 31 for the output shaft 41 of the engine 4 to pass through, and the diameter of the through hole 31 is larger than the diameter of the output shaft 41. Figure 2 As shown, the fixed positions of the engine 4 and the guide seat component 2 can be easily adjusted so that the engine 4 and the guide seat component 2 can be adapted to the screw holes on the frame mounting plate 3.

[0035] During operation, the engine 4 is first placed on the first side of the frame mounting plate 3, and the guide seat component 2 is located on the second side of the frame mounting plate 3. The output shaft 41 of the engine 4 passes through the through hole 31 to reach the second side of the frame mounting plate 3. The slot 11 of the tooling body 1 is aligned with the output shaft 41, and the positioning hole 12 is aligned with the positioning post 5. The tooling body 1 is then assembled on the second side of the frame mounting plate 3. After assembly, it can be ensured that the guide seat component 2 and the output shaft 41 remain coaxial. Subsequently, the guide seat component 2 and the engine 4 are fixedly connected to the frame mounting plate 3 respectively. During the fixing process, due to the presence of the tooling body, the guide seat component 2 always remains coaxial with the output shaft 41, preventing any offset or other issues.

[0036] Furthermore, to facilitate the assembly of the tooling body 1, engine 4, and guide seat component 2 onto the frame mounting plate 3, several limiting protrusions 14 can be provided on the side of the tooling body 1 facing the frame mounting plate 3. Please refer to [reference needed]. Figure 4 The frame mounting plate 3 is provided with a limiting groove that corresponds to the limiting protrusion 14. Through the cooperation between the limiting protrusion 14 and the limiting groove, the tooling body 1 can be quickly assembled on the frame mounting plate 3. Correspondingly, the guide seat component 2 and the engine 4 can also be assembled, so that the guide seat component 2 and the engine 4 can be quickly assembled with the frame mounting plate 3.

[0037] To improve the stability of the tooling body 1 during use, when the limiting protrusion 14 engages with the limiting groove, the tooling body 1 can abut against the frame fixing plate 3, thereby providing the tooling body 1 with a stable support surface, namely the surface of the frame fixing plate 3; furthermore, a limiting protrusion 13 is provided on the side of the tooling body 1 facing the frame fixing plate 3, please refer to... Figure 4 The limiting protrusion 14 is provided on the limiting protrusion 13. Therefore, when the limiting protrusion 14 is engaged with the limiting groove, the end face of the limiting protrusion 13 can abut against the plate surface of the frame fixing plate 3.

[0038] In some embodiments, the end of the limiting protrusion 14 has a frustum section, and the bottom has a columnar section. That is, the end of the limiting protrusion 14 near the limiting protrusion 13 has a columnar section. The frustum section has a small top diameter and a large bottom diameter, which facilitates the limiting protrusion 14 to enter the limiting groove smoothly and quickly, improving assembly efficiency. The bottom diameter of the frustum section is the same as the diameter of the columnar section, and the diameter of the columnar section is the same as the diameter of the limiting groove, so that the tooling body 1 can be fixed in the radial direction relative to the frame fixing plate 3. Of course, the diameter of the columnar section can also be smaller than the diameter of the limiting groove, so that the tooling body 1 has a certain adjustable space on the frame fixing plate 3, which facilitates fine adjustment of the position of the guide seat component 2 and the engine 4 relative to the frame fixing plate 3.

[0039] Furthermore, the guide seat component 2 has a central hollow design, meaning it is a ring-shaped structure. The limiting protrusion 13 can pass through the central hollow of the guide seat component 2 and abut against the pricing fixing plate. After the guide seat component 2 and the engine 4 are positioned correctly, the guide seat component 2 and the engine 4 can be fixed to the frame fixing plate 3 by tightening the fasteners. After fixing, the tooling body 1 can be removed for the next step of operation.

[0040] It should be noted that in this specification, relational terms such as first and second are used only to distinguish one entity from several other entities, and do not necessarily require or imply any such actual relationship or order between these entities.

[0041] This document uses specific examples to illustrate the principles and implementation methods of this application. The descriptions of the embodiments above are only for the purpose of helping to understand the method and core ideas of this application. It should be noted that those skilled in the art can make several improvements and modifications to this application without departing from the principles of this application, and these improvements and modifications also fall within the protection scope of the claims of this application.

Claims

1. A tooling assembly for the power and guide seat components of a lawnmower, characterized in that, The tooling body (1) includes a slot (11) in the middle of the tooling body (1) that matches the diameter of the output shaft (41) of the engine (4) to radially limit the output shaft (41) of the engine (4). The tooling body (1) has limiting components at both ends for radially limiting the guide seat component (2). The limiting components are used to make the guide seat component (2) and the slot (11) coaxially arranged.

2. The assembly fixture for the power and guide seat components of the lawnmower according to claim 1, characterized in that, The limiting component includes a plurality of positioning holes (12) on the tooling body (1) and a plurality of positioning pins (5) on the guide seat component (2). The positioning pins (5) correspond one-to-one with the positioning holes (12) and are inserted into each other, and the diameter of the positioning pins (5) matches the inner diameter of the positioning holes (12).

3. The assembly fixture for the power and guide seat components of the lawnmower according to claim 2, characterized in that, A number of the positioning holes (12) are distributed on a distribution circle with the axis of the slot (11) as the center, and the positioning post (5) is detachably disposed on the guide seat component (2).

4. The assembly fixture for the power and guide seat components of the lawnmower according to claim 1, characterized in that, The engine (4) and the guide seat component (2) are respectively fixed on both sides of the frame fixing plate (3). The frame fixing plate (3) has a through hole (31) for the output shaft (41) of the engine (4) to pass through. The tooling body (1) and the guide seat component (2) are located on the same side of the frame fixing plate (3).

5. The assembly fixture for the power and guide seat components of the lawnmower according to claim 4, characterized in that, The tooling body (1) has several limiting protrusions (14) on the side facing the frame fixing plate (3). The frame fixing plate (3) has a limiting groove that corresponds to the limiting protrusions (14). When the limiting protrusions (14) and the limiting grooves are engaged, the tooling body (1) abuts against the frame fixing plate (3).

6. The assembly fixture for the power and guide seat components of the lawnmower according to claim 5, characterized in that, The tooling body (1) has a limiting protrusion (13) on the side facing the frame fixing plate (3), and the limiting protrusion (14) is provided on the limiting protrusion (13). The limiting protrusion (13) abuts against the frame fixing plate (3).

7. The assembly fixture for the power and guide seat components of the lawnmower according to claim 5, characterized in that, The limiting protrusion (14) has a frustum section at one end and a columnar section at the bottom. The top diameter of the frustum section is small and the bottom diameter is large. The bottom diameter of the frustum section is the same as the diameter of the columnar section. The columnar section can be inserted into the limiting groove.

8. The assembly fixture for the power and guide seat components of the lawnmower according to claim 6, characterized in that, The guide seat component (2) has a hollowed-out center, and the limiting protrusion (13) passes through the hollowed-out center of the guide seat component (2) and abuts against the frame fixing plate (3).

9. The assembly fixture for the power and guide seat components of the lawnmower according to claim 4, characterized in that, The guide seat component (2) and the engine (4) are fixed to the frame mounting plate (3) by fasteners.

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