Rotating body rotating speed sensing module mounting structure of engine

Abstract

The utility model discloses a rotating body rotating speed sensing module installation structure of an engine. The rotating body rotating speed sensing module installation structure comprises a supporting shell, a crank connecting rod module, a rotary transformer signal sensing transmission shaft, a first bearing and a second bearing. The rotary transformer signal induction transmission shaft is connected with the crank connecting rod module; an outer ring of the first bearing is fixed in the supporting shell, and one end, connected with the rotary transformer signal induction transmission shaft, of the crank connecting rod module is fixedly inserted in an inner ring of the first bearing; the outer ring of the second bearing is fixed in the supporting shell, and the rotary transformer signal induction transmission shaft is fixedly inserted in the inner ring of the second bearing; a lubricating oil channel, a first lubricating oil injection hole and a second lubricating oil injection hole are formed in the supporting shell. According to the utility model, the coaxial precision of the crank connecting rod module and the resolver signal induction transmission shaft can be ensured, the rotation smoothness of the crank connecting rod module and the resolver signal induction transmission shaft can be ensured, and the bearing capacity is improved.

Description

Technical Field

[0001] The utility model relates to the field of engines, and particularly relates to an installation structure of a rotating body speed induction module of an engine. Background Art

[0002] With the continuous development of technology, in order to achieve intelligent detection and control, during the working process of the engines of vehicles such as motorcycles, the rotation speed of the crank connecting rod module is often obtained by inducing the resolver signal induction transmission shaft connected to the crank connecting rod module. However, after the resolver signal induction transmission shaft is connected to the crank connecting rod module, during the rotation of the crank connecting rod module, the resolver signal induction transmission shaft is prone to skew relative to the crank connecting rod module, which affects the coaxial accuracy of the two, and may also affect the smoothness of the rotation of the crank connecting rod module and the resolver signal induction transmission shaft, thus easily affecting the subsequent normal work and detection. Content of the Utility Model

[0003] In order to overcome the deficiencies of the prior art, the purpose of the utility model is to provide an installation structure of a rotating body speed induction module of an engine, which can ensure the coaxial accuracy of the crank connecting rod module and the resolver signal induction transmission shaft, and can ensure the smoothness of the rotation of the crank connecting rod module and the resolver signal induction transmission shaft.

[0004] The purpose of the utility model is achieved by adopting the following technical solutions:

[0005] An installation structure of a rotating body speed induction module of an engine includes a support housing, a crank connecting rod module, a resolver signal induction transmission shaft, a first bearing and a second bearing; the resolver signal induction transmission shaft is connected to the crank connecting rod module; the outer ring of the first bearing is fixed in the support housing, and one end of the crank connecting rod module connected to the resolver signal induction transmission shaft is fixedly inserted into the inner ring of the first bearing; the outer ring of the second bearing is fixed in the support housing, and the resolver signal induction transmission shaft is fixedly inserted into the inner ring of the second bearing; the central axis of the first bearing coincides with the central axis of the second bearing; a lubricating oil channel, a first lubricating oil injection hole and a second lubricating oil injection hole are formed in the support housing; the first lubricating oil injection hole is communicated with the lubricating oil channel, and the first lubricating oil injection hole faces the ball rolling interval of the first bearing; the second lubricating oil injection hole is communicated with the lubricating oil channel, and the second lubricating oil injection hole faces the ball rolling interval of the second bearing.

[0006] The crank connecting rod module is provided with a plug hole, the resolver signal induction transmission shaft is provided with a plug end, and the plug end of the resolver signal induction transmission shaft is embedded in the plug hole.

[0007] The cross-section of the plug hole is rectangular, and the shape of the plug end matches the shape of the plug hole.

[0008] A first bearing mounting cavity is formed in the support housing, and the outer ring of the first bearing is fixed in the first bearing mounting cavity of the support housing.

[0009] A second bearing mounting cavity is formed in the support housing, and the outer ring of the second bearing is fixed in the second bearing mounting cavity of the support housing.

[0010] The support housing includes a main housing and a mounting seat. The mounting seat is detachably connected to the main housing. The lubricating oil passage, the first lubricating oil injection hole and the second lubricating oil injection hole are formed on the main housing; the mounting seat and the main housing enclose the second bearing mounting cavity.

[0011] A bearing positioning shoulder is provided on the resolver signal induction transmission shaft at a position between the first bearing and the second bearing, and the bearing positioning shoulder abuts against the inner ring of the second bearing.

[0012] A resolver signal inductor rotor is provided on the resolver signal induction transmission shaft.

[0013] A rotor positioning shoulder is provided on the resolver signal induction transmission shaft, and a locking member is detachably connected to the resolver signal induction transmission shaft. The resolver signal inductor rotor is sleeved on the resolver signal induction transmission shaft and is restricted between the rotor positioning shoulder and the locking member.

[0014] An oil seal is provided in the support housing between the resolver signal inductor rotor and the second bearing. The oil seal is provided with a through hole, and the resolver signal induction transmission shaft passes through the through hole.

[0015] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0016] An installation structure of a rotating body speed induction module of an engine provided by the present utility model, on the basis of adopting a combination of a support housing, a crank connecting rod module, a resolver signal induction transmission shaft, a first bearing and a second bearing, and by forming a lubricating oil passage, a first lubricating oil injection hole and a second lubricating oil injection hole in the support housing, and at the same time fixedly inserting one end of the crank connecting rod module connected to the resolver signal induction transmission shaft into the inner ring of the first bearing, and fixedly inserting the resolver signal induction transmission shaft into the inner ring of the second bearing, can improve the supporting force for the crank connecting rod module and the resolver signal induction transmission shaft, ensure the coaxial accuracy of the crank connecting rod module and the resolver signal induction transmission shaft, and ensure the smoothness of the rotation of the crank connecting rod module and the resolver signal induction transmission shaft. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a schematic structural diagram of the installation structure of the rotating body speed induction module of the engine of the present utility model;

[0018] Figure 2 This is a partial cross-sectional view of the installation structure of the rotating body speed induction module of the engine of the present utility model;

[0019] Figure 3 This is an exploded view of the installation structure of the rotating body speed induction module of the engine of the present utility model.

[0020] Among them, 10, support housing; 11, lubricating oil channel; 12, first lubricating oil injection hole; 13, second lubricating oil injection hole; 14, first bearing installation cavity; 15, second bearing installation cavity; 16, main housing; 20, crank connecting rod module; 21, insertion hole; 30, first bearing; 31, insertion end; 40, second bearing; 50, mounting seat; 70, resolver signal induction transmission shaft; 71, rotor positioning shoulder; 72, bearing positioning shoulder; 81, resolver signal inductor rotor; 82, oil seal; 83, main sleeve body; 84, collar; 90, locking part; 91, gasket; 92, locking nut. Detailed implementation manners

[0021] Next, in combination with the accompanying drawings and specific implementation manners, the present utility model will be further described. It should be noted that, on the premise of no conflict, the following described embodiments or technical features can be arbitrarily combined to form new embodiments.

[0022] As Figures 1-3 shown, an installation structure of a rotating body speed induction module of an engine includes a support housing 10, a crank connecting rod module 20, a resolver signal induction transmission shaft 70, a first bearing 30 and a second bearing 40; the resolver signal induction transmission shaft 70 is connected to the crank connecting rod module 20; the outer ring of the first bearing 30 is fixed in the support housing 10, and one end of the crank connecting rod module 20 connected to the resolver signal induction transmission shaft 70 is fixedly inserted into the inner ring of the first bearing 30; the outer ring of the second bearing 40 is fixed in the support housing 10, and the resolver signal induction transmission shaft 70 is fixedly inserted into the inner ring of the second bearing 40; the central axis of the first bearing 30 coincides with the central axis of the second bearing 40; a lubricating oil channel 11, a first lubricating oil injection hole 12 and a second lubricating oil injection hole 13 are formed in the support housing 10; the first lubricating oil injection hole 12 is communicated with the lubricating oil channel 11, and the first lubricating oil injection hole 12 faces the ball rolling interval of the first bearing 30; the second lubricating oil injection hole 13 is communicated with the lubricating oil channel 11, and the second lubricating oil injection hole 13 faces the ball rolling interval of the second bearing 40.

[0023] During the working process, the crank connecting rod module 20 rotates synchronously with the resolver signal induction transmission shaft 70. Since one end of the crank connecting rod module 20 connected to the resolver signal induction transmission shaft 70 is fixedly inserted into the inner ring of the first bearing 30, and the resolver signal induction transmission shaft 70 is fixedly inserted into the inner ring of the second bearing 40, and at the same time the central axis of the first bearing 30 coincides with the central axis of the second bearing 40, thus through the cooperation between the crank connecting rod module 20 and the first bearing 30, and the cooperation between the resolver signal induction transmission shaft 70 and the second bearing 40, the first bearing 30 and the second bearing 40 can be used to play a supporting and limiting role, so as to improve the supporting force for the crank connecting rod module 20 and the resolver signal induction transmission shaft 70, avoid the phenomenon of deflection of the resolver signal induction transmission shaft 70, ensure the coaxial accuracy of the crank connecting rod module 20 and the resolver signal induction transmission shaft 70, and ensure the smooth rotation of the crank connecting rod module 20 and the resolver signal induction transmission shaft 70. Moreover, the lubricating oil flowing through the lubricating oil channel 11 can spray lubricating oil on the ball rolling intervals of the first bearing 30 and the second bearing 40 through the first lubricating oil injection hole 12 and the second lubricating oil injection hole 13 respectively, which can fully lubricate the first bearing 30 and the second bearing 40, so as to ensure the coaxial accuracy of the crank connecting rod module 20 and the resolver signal induction transmission shaft 70, and at the same time ensure that the inner rings of the first bearing 30 and the second bearing 40 can still rotate flexibly after long-term use, so as to ensure the smooth rotation of the crank connecting rod module 20 and the resolver signal induction transmission shaft 70 after long-term use, and also improve its bearing capacity.

[0024] The crank connecting rod module 20 is provided with a plug hole 21, the resolver signal induction transmission shaft 70 is provided with a plug end 31, and the plug end 31 of the resolver signal induction transmission shaft 70 is embedded in the plug hole 21. By adopting the above structure, while the crank connecting rod module 20 and the resolver signal induction transmission shaft 70 rotate synchronously, it is also convenient for processing and installation.

[0025] Preferably, the cross-section of the plug hole 21 is rectangular, and the shape of the plug end 31 matches the shape of the plug hole 21.

[0026] Of course, in addition, the shapes of the plug hole 21 and the plug end 31 can also be set according to actual needs. However, setting the cross-section of the plug hole 21 to be rectangular and setting the shape of the plug end 31 to match the shape of the plug hole 21 is the most preferred embodiment of the present invention, which can further facilitate processing.

[0027] A first bearing installation cavity 14 is formed in the support housing 10, and the outer ring of the first bearing 30 is fixed in the first bearing installation cavity 14 of the support housing 10, thus facilitating the installation of the first bearing 30.

[0028] A second bearing mounting cavity 15 is formed in the support housing 10, and the outer ring of the second bearing 40 is fixed in the second bearing mounting cavity 15 of the support housing 10, facilitating the installation of the second bearing 40.

[0029] The support housing 10 includes a main housing 16 and a mounting seat 50. The mounting seat 50 is detachably connected to the main housing 16. The lubricating oil passage 11, the first lubricating oil injection hole 12, and the second lubricating oil injection hole 13 are formed in the main housing 16. The mounting seat 50 and the main housing 16 enclose the second bearing mounting cavity 15. In this embodiment, the first bearing mounting cavity 14 is provided in the main housing 16. By adopting the above arrangement, by disassembling the mounting seat 50 from the main housing 16, the second bearing 40 and the resolver signal sensing transmission shaft 70 can be conveniently disassembled, facilitating the detection and replacement of the resolver signal sensing transmission shaft 70.

[0030] Among them, the main housing 16 can be a box cover or the like.

[0031] Specifically, the mounting seat 50 is connected to the main housing 16 by a plurality of locking bolts. Of course, in addition, the mounting seat 50 can also be fixed to the main housing 16 by a snap pin or the like. However, fixing the mounting seat 50 to the main housing 16 by a plurality of locking bolts is the most preferred embodiment of the present utility model, facilitating disassembly and assembly.

[0032] A resolver signal sensor rotor 81 is provided on the resolver signal sensing transmission shaft 70. Specifically, a rotor positioning shoulder 71 is provided on the resolver signal sensing transmission shaft 70, and a locking member 90 is detachably connected to the resolver signal sensing transmission shaft 70. The resolver signal sensor rotor 81 is sleeved on the resolver signal sensing transmission shaft 70 and is restricted between the rotor positioning shoulder 71 and the locking member 90. By adopting the above structure, the disassembly and replacement of the resolver signal sensor rotor 81 can be facilitated.

[0033] In this embodiment, the locking member 90 includes a gasket 91 and a locking nut 92. The locking nut 92 is threadedly connected to the resolver signal sensing transmission shaft 70, and the gasket 91 abuts between the resolver signal sensor rotor 81 and the locking nut 92.

[0034] Of course, the locking member 90 can also be other according to actual needs. However, adopting the combination of the gasket 91 and the locking nut 92 for the locking member 90 is the most preferred embodiment of the present utility model, facilitating disassembly and assembly while reducing costs.

[0035] An oil seal 82 is provided inside the support housing 10 between the resolver signal inductor rotor 81 and the second bearing 40. The oil seal 82 is provided with a through hole, and the resolver signal induction transmission shaft 70 is passed through the through hole. Through the sealing effect of the oil seal 82, it is possible to prevent the lubricating oil from flowing from the second bearing 40 to the resolver signal inductor rotor 81.

[0036] The oil seal 82 includes a main sleeve body 83 and a collar 84 sleeved on the main sleeve body 83. The main sleeve body 83 is provided with a circumferential groove, and the collar 84 is sleeved in the circumferential groove of the main sleeve body 83, so that the oil seal 82 is tightly connected to the resolver signal induction transmission shaft 70 to prevent oil leakage in the direction of the resolver signal inductor rotor 81.

[0037] Of course, the oil seal 84 can adopt any existing oil seal on the market, and is not limited to the above structure, as long as it can play a sealing role.

[0038] A bearing positioning shoulder 72 is provided on the resolver signal induction transmission shaft 70 at the position between the first bearing 30 and the second bearing 40. The bearing positioning shoulder 72 abuts against the inner ring of the second bearing 40. By adopting the above setting, the resolver signal induction transmission shaft 70 can be axially limited by the second bearing 40.

[0039] The above embodiments are only the preferred embodiments of the present invention and cannot be used to limit the scope of protection of the present invention. Any non-substantive changes and substitutions made by those skilled in the art on the basis of the present invention fall within the scope of protection required by the present invention.

Claims

1. An installation structure of a rotational speed sensing module for an engine, characterized in that: It includes a support housing, a crank connecting rod module, a resolver signal induction transmission shaft, a first bearing and a second bearing; the resolver signal induction transmission shaft is connected to the crank connecting rod module; the outer ring of the first bearing is fixed inside the support housing, and one end of the crank connecting rod module connected to the resolver signal induction transmission shaft is fixedly inserted into the inner ring of the first bearing; the outer ring of the second bearing is fixed inside the support housing, and the resolver signal induction transmission shaft is fixedly inserted into the inner ring of the second bearing; the central axis of the first bearing coincides with the central axis of the second bearing; a lubricating oil channel, a first lubricating oil injection hole and a second lubricating oil injection hole are formed inside the support housing; the first lubricating oil injection hole is communicated with the lubricating oil channel, and the first lubricating oil injection hole faces the ball rolling interval of the first bearing; The second lubricating oil injection hole is communicated with the lubricating oil channel, and the second lubricating oil injection hole faces the ball rolling interval of the second bearing.

2. The installation structure of the rotating body speed induction module of the engine according to claim 1, characterized in that: The crank connecting rod module is provided with a plug hole, the resolver signal induction transmission shaft is provided with a plug end, and the plug end of the resolver signal induction transmission shaft is embedded in the plug hole.

3. The installation structure of the rotating body speed induction module of the engine according to claim 2, characterized in that: The cross section of the plug hole is rectangular, and the shape of the plug end matches the shape of the plug hole.

4. The installation structure of the rotating body speed induction module of the engine according to claim 1 or 2 or 3, characterized in that: A first bearing installation cavity is formed inside the support housing, and the outer ring of the first bearing is fixed in the first bearing installation cavity of the support housing.

5. The installation structure of the rotating body speed induction module of the engine according to claim 4, characterized in that: A second bearing installation cavity is formed inside the support housing, and the outer ring of the second bearing is fixed in the second bearing installation cavity of the support housing.

6. The installation structure of the rotating body speed induction module of the engine according to claim 5, characterized in that: The support housing includes a main housing and a mounting seat, the mounting seat is connected to the main housing in a detachable manner, and the lubricating oil channel, the first lubricating oil injection hole and the second lubricating oil injection hole are formed on the main housing; the mounting seat and the main housing enclose the second bearing installation cavity.

7. The installation structure of the rotating body speed induction module of the engine according to claim 1, characterized in that: The resolver signal induction transmission shaft is provided with a bearing positioning shoulder at the position between the first bearing and the second bearing, and the bearing positioning shoulder abuts against the inner ring of the second bearing.

8. The installation structure of the rotating body speed induction module of the engine according to claim 1, characterized in that: A resolver signal inductor rotor is provided on the resolver signal induction transmission shaft.

9. The installation structure of the rotating body speed sensing module of the engine according to claim 8, wherein: The resolver signal induction transmission shaft is provided with a rotor positioning shoulder, and a locking member is connected to the resolver signal induction transmission shaft in a detachable manner. The resolver signal inductor rotor is sleeved on the resolver signal induction transmission shaft and is restricted between the rotor positioning shoulder and the locking member.

10. The installation structure of the rotating body speed induction module of the engine according to claim 8 or 9, characterized in that: An oil seal is provided inside the support housing between the resolver signal inductor rotor and the second bearing. The oil seal is provided with a through hole, and the resolver signal induction transmission shaft passes through the through hole.

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