CN213205848U - Motorcycle engine crankcase - Google Patents

Abstract

The utility model provides a motorcycle engine crankcase belongs to crankcase technical field, and it has solved the problem that can not filter impurity in the lubricating oil after the filter vat of current crankcase blocks up. It is including having the case body that holds the chamber, it is equipped with first filter vat and second filter vat to hold the intracavity, the second filter vat is located in the first filter vat, oil inlet and oil-out have been seted up on the case body, the top surface of case body is opened first and is led the hydraulic fluid port and the hydraulic fluid port is led to the second, the top of case body is equipped with and covers the first cylinder body of leading the hydraulic fluid port and leading the hydraulic fluid port with the second, be equipped with in the cylinder body and lead the inner chamber that the hydraulic fluid port is linked together with first hydraulic fluid port and second, the intracavity is equipped with through elevating system driven the elevator that is used for controlling first hydraulic fluid port and the hydraulic fluid port break-make is led to. The utility model discloses a back is blockked up to first filter vat, and lubricating oil accessible second filter vat filters and flows from the oil-out.

Description

Motorcycle engine crankcase

Technical Field

The utility model belongs to the technical field of the crankcase, concretely relates to motorcycle engine crankcase body.

Background

The crankcase body is a component for mounting a crankshaft, and can be divided into an upper crankcase and a lower crankcase, the upper crankcase and a cylinder block are cast into a whole, the lower crankcase is used for storing lubricating oil and sealing the upper crankcase, so the lower crankcase is called an oil pan, the lubricating oil in the oil pan is used for providing lubricating action for the crankshaft, and the lubricating oil enters a lubricating oil way from the oil pan and then lubricates other components in the crankcase, such as the crankshaft.

Lubricating oil can produce impurity such as metal abrasive dust when parts such as bent axle work, lubricating oil backward flow also brings into the oil pan with these impurity when to the oil pan in, lubricating oil reuse needs to filter through the clear filter and just can use, otherwise impurity can exert an influence to parts such as bent axle, makes its wearing and tearing improve greatly, but when filtering lubricating oil, if clear filter blocks up, the bypass valve on the clear filter can be opened, unfiltered lubricating oil will take impurity directly to flow into the oil circuit main road in to lubricate parts, but can cause the damage to parts such as bent axle like this.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the technical problem that exists among the prior art, the utility model aims at providing a motorcycle engine crankcase body can filter lubricating oil through the second filter vat when first filter vat is blockked up.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a crankcase body of a motorcycle engine comprises a case body with an accommodating cavity, wherein a first filter barrel and a second filter barrel which divide the accommodating cavity into a first cavity, a second cavity and a third cavity which are sequentially distributed from outside to inside are arranged in the accommodating cavity, the second filter barrel is arranged in the first filter barrel, an oil inlet communicated with the first cavity and an oil outlet communicated with the second cavity are arranged on the case body, a first oil guide opening communicated with the first cavity and a second oil guide opening communicated with the third cavity are arranged on the top surface of the case body, a cylinder body which covers the first oil guide opening and the second oil guide opening is arranged at the top of the case body, an inner cavity communicated with the first oil guide opening and the second oil guide opening is arranged in the cylinder body, and a lifting block which is driven by a lifting mechanism and is used for controlling the on-off of the first oil guide opening and the second oil guide opening is arranged in the inner cavity, the lifting block is in sliding fit with the inner cavity.

During operation, lubricating oil enters the first cavity through the oil inlet, enters the second cavity after being filtered by the first filter barrel, and finally flows out of the oil outlet. The lifting block can be driven by the lifting mechanism to move upwards to communicate the first oil guide port and the second oil guide port, so that lubricating oil can enter the third cavity through the first oil guide port and the second oil guide port, the lubricating oil in the third cavity is filtered by the second filter barrel and flows out of the oil outlet, the flow of the lubricating oil is improved, and the filtering speed of the lubricating oil is improved; when the first filter vat is blocked, the lifting mechanism drives the lifting block to move upwards and communicate the first oil guide port and the second oil guide port, lubricating oil flows to the second oil guide port from the first oil guide port, the lubricating oil is filtered through the second filter vat, the filtered lubricating oil flows out from the oil outlet, and then the filtering mode of the lubricating oil is changed according to the actual condition of the first filter vat.

Among the above-mentioned motorcycle engine crankcase body, the elevator on set up with first lead the hydraulic fluid port be linked together and vertically set up first water conservancy diversion shrinkage pool and lead the second water conservancy diversion shrinkage pool that the hydraulic fluid port is linked together with the second, first water conservancy diversion shrinkage pool is through locating the passageway and the intercommunication of second water conservancy diversion shrinkage pool that overflows in the elevator, first water conservancy diversion shrinkage pool fit in be equipped with the end cap that is used for control to overflow the passageway break-make, the top of end cap is equipped with expanding spring, expanding spring's top acts on the top of first water conservancy diversion shrinkage pool.

When first filter vat blockked up, along with the continuous entering of lubricating oil, make the pressure increase in the first cavity, lubricating oil extrusion end cap, the end cap drives expanding spring and upwards contracts, first water conservancy diversion shrinkage pool with overflow the passageway intercommunication, lubricating oil passes through second water conservancy diversion shrinkage pool and second filter vat in proper order to flow from the oil-out, use the second filter vat automatically to filter lubricating oil after first filter vat blocks up, can use jointly with elevating system, reduced the loss of bringing when elevating system breaks down.

In the motorcycle engine crankcase body, the top surface of the accommodating cavity is provided with a first annular groove matched with the first filter barrel, the top surface of the accommodating cavity is further provided with a second annular groove matched with the second filter barrel, and the first filter barrel and the second filter barrel are connected to the case body through a detachable connection structure. The first filter vat and the second filter vat can be detached and cleaned conveniently.

In the motorcycle engine crankcase body, a connecting port communicated with the containing cavity is formed in the bottom surface of the case body, a connecting plate is arranged in the connecting port in a matched mode, a third annular groove which is opposite to the first annular groove is formed in the connecting plate, a fourth annular groove which is opposite to the second annular groove is further formed in the connecting plate, the lower end of the first filter barrel is located in the third annular groove, and the lower end of the second filter barrel is located in the fourth annular groove.

Fixed first filter vat and second filter vat improve the connection stability of first filter vat and second filter vat, wherein, are equipped with the sealing washer between connector and the connecting plate, improve the sealing performance of lubricating oil, avoid lubricating oil to leak from the case body.

In the crankcase body of the motorcycle engine, the connecting plate is provided with a through hole, the case body is provided with a locking hole which is opposite to the through hole, a locking piece is arranged in the locking hole, and the part of the locking piece penetrating through the locking hole is in threaded connection with the through hole; the connecting plate can be taken off to rotatory locking piece, and in the same way also does benefit to the connecting plate locking on the case body.

In the motorcycle engine crankcase body, the bottom of the lifting block is provided with the anti-falling block positioned at the opening of the first flow guide concave hole. Because expanding spring is in compression state for a long time, when lubricating oil did not flow to first oil guide port, the end cap was extrudeed downwards by expanding spring, and the anticreep piece can support the end cap, avoids the end cap to break away from the elevator block.

In the crankcase body of the motorcycle engine, the lifting mechanism comprises a through hole arranged at the top of the cylinder body and a lifting rod arranged on the lifting block and in threaded connection with the through hole; when the lifting rod is used, the first oil guide port and the second oil guide port can be controlled to be switched on and off by rotating the lifting rod, and the adjustment is simple and convenient.

Compared with the prior art, this motorcycle engine crankcase's beneficial effect does:

1. because be equipped with first oil mouth, second and lead oil mouth and barrel, when first filter vat blockked up, elevating system drove the piece rebound and communicate first oil mouth and second and lead the oil mouth, and the oil mouth is led to lubricating oil from first oil mouth flow direction second, leads the oil mouth through the second filter vat to lubricating oil, and the lubricating oil that has filtered flows out from the oil-out.

2. Because first filter vat and second filter vat are connected on the case body through dismantling connection structure, do benefit to and dismantle first filter vat and second filter vat and wash it.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

FIG. 1 is a structural sectional view of a crankcase body of the motorcycle engine;

FIG. 2 is a partial cross-sectional view of the tank body;

FIG. 3 is a first structural section view of the connecting plate;

FIG. 4 is a structural sectional view II of the connecting plate;

FIG. 5 is an enlarged view taken at a in FIG. 1;

reference numerals in the drawings of the specification include: 1. a tank body; 101. a first cavity; 102. a second cavity; 103. a third cavity; 104. an oil inlet; 105. an oil outlet; 2. a first filter vat; 3. a second filter vat; 401. a first oil guide port; 402. a second oil guide port; 5. a barrel; 6. an inner cavity; 7. a lifting block; 8. a first flow guiding concave hole; 9. a second flow guiding concave hole; 10. an overflow channel; 11. a plug; 12. a tension spring; 13. a first annular groove; 14. a second annular groove; 15. a connecting port; 16. a connecting plate; 17. a third annular groove; 18. a fourth annular groove; 19. A through hole; 20. a locking hole; 21. a locking member; 22. an anti-drop block; 23. perforating; 24. and lifting the pull rod.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, it is to be understood that the terms "longitudinal", "lateral", "vertical", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

In the description of the present invention, unless otherwise specified and limited, it is to be noted that the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, mechanically or electrically connected, or may be connected between two elements through an intermediate medium, or may be directly connected or indirectly connected, and specific meanings of the terms may be understood by those skilled in the art according to specific situations.

As shown in fig. 1, a crankcase body of a motorcycle engine comprises a case body 1 having a receiving cavity, a first filter barrel 2 and a second filter barrel 3 provided with a first cavity 101, a second cavity 102 and a third cavity 103 which are sequentially distributed from outside to inside are arranged in the receiving cavity, the second filter barrel 3 is arranged in the first filter barrel 2, the case body 1 is provided with an oil inlet 104 communicated with the first cavity 101 and an oil outlet 105 communicated with the second cavity 102, the top surface of the case body 1 is provided with a first oil guide port 401 communicated with the first cavity 101 and a second oil guide port 402 communicated with the third cavity 103, the top of the case body 1 is provided with a cylinder body 5 covering the first oil guide port 401 and the second oil guide port 402, an inner cavity 6 communicated with the first oil guide port 401 and the second oil guide port 402 is arranged in the cylinder body 5, a lifting block 7 driven by a lifting mechanism and used for controlling the on-off of the first oil guide port 401 and the second oil guide port 402 is arranged in the inner cavity 6, the elevator block 7 is a sliding fit within the inner cavity 6.

As shown in fig. 1, during operation, lubricating oil enters the first cavity 101 through the oil inlet 104, enters the second cavity 102 after being filtered by the first filter barrel 2, and finally flows out of the oil outlet 105. The lifting block 7 can be driven by the lifting mechanism to move upwards to communicate the first oil guide port 401 and the second oil guide port 402, so that lubricating oil can enter the third cavity 103 through the first oil guide port 401 and the second oil guide port 402, the lubricating oil in the third cavity 103 is filtered by the second filter barrel 3 and flows out of the oil outlet 105, the flow of the lubricating oil is improved, and the filtering speed of the lubricating oil is improved; when the first filtering barrel 2 is blocked, the lifting mechanism drives the lifting block 7 to move upwards and communicate with the first oil guide port 401 and the second oil guide port 402, the lubricating oil flows from the first oil guide port 401 to the second oil guide port 402, the lubricating oil is filtered through the second filtering barrel 3, the filtered lubricating oil flows out from the oil outlet 105, and then the filtering mode of the lubricating oil is changed according to the actual situation of the first filtering barrel 2.

As shown in fig. 1, a first flow guiding concave hole 8 which is communicated with a first oil guiding port 401 and is longitudinally arranged and a second flow guiding concave hole 9 which is communicated with a second oil guiding port 402 are formed in the lifting block 7, the first flow guiding concave hole 8 is communicated with the second flow guiding concave hole 9 through an overflowing channel 10 arranged in the lifting block 7, a plug 11 which is used for controlling the on-off of the overflowing channel 10 is arranged in the first flow guiding concave hole 8 in a matched mode, an expansion spring 12 is arranged at the top of the plug 11, and the top end of the expansion spring 12 acts on the top end of the first flow guiding concave hole 8.

As shown in fig. 1, when the first filtering barrel 2 is blocked, along with the continuous entering of lubricating oil, the pressure in the first cavity 101 is increased, the lubricating oil extrudes the plug 11, the plug 11 drives the extension spring 12 to shrink upwards, the first diversion concave hole 8 is communicated with the overflowing channel 10, the lubricating oil sequentially passes through the second diversion concave hole 9 and the second filtering barrel 3 and flows out from the oil outlet 105, the lubricating oil is automatically filtered by using the second filtering barrel 3 after the first filtering barrel 2 is blocked, the lubricating oil can be used together with the lifting mechanism, and the loss caused when the lifting mechanism breaks down is reduced.

As shown in fig. 1, the top surface of the accommodating cavity is provided with a first annular groove 13 matched with the first filter vat 2, the top surface of the accommodating cavity is further provided with a second annular groove 14 matched with the second filter vat 3, and the first filter vat 2 and the second filter vat 3 are connected to the box body 1 through a detachable connection structure. It is convenient to disassemble the first filtering barrel 2 and the second filtering barrel 3 and clean them.

As shown in fig. 2, a connection port 15 communicated with the accommodating cavity is formed in the bottom surface of the box body 1, a connection plate 16 is arranged in the connection port 15 in a matched manner, a third annular groove 17 opposite to the first annular groove 13 is formed in the connection plate 16, a fourth annular groove 18 opposite to the second annular groove 14 is further formed in the connection plate 16, the lower end of the first filter vat 2 is located in the third annular groove 17, and the lower end of the second filter vat 3 is located in the fourth annular groove 18. Fixed first filter vat 2 and second filter vat 3 improve the connection stability of first filter vat 2 and second filter vat 3, wherein, are equipped with the sealing washer between connector 15 and the connecting plate 16, improve the sealing performance of lubricating oil, avoid lubricating oil to leak from case body 1.

As shown in fig. 3 and 4, a through hole 19 is formed in the connecting plate 16, a locking hole 20 which is opposite to the through hole 19 is formed in the box body 1, a locking member 21 is arranged in the locking hole 20, and the part of the locking member 21 penetrating through the locking hole 20 is in threaded connection with the through hole 19; the connecting plate 16 can be removed by rotating the locking member 21, which, similarly, also facilitates locking the connecting plate 16 to the tank body 1.

As shown in fig. 1 and 5, the bottom of the lifting block 7 is provided with an anti-drop block 22 located at the opening of the first diversion concave hole 8. Because the telescopic spring 12 is in a compressed state for a long time, when the lubricating oil does not flow to the first oil guide port 401, the plug 11 is pressed downwards by the telescopic spring 12, and the anti-dropping block 22 can support the plug 11 to prevent the plug 11 from being separated from the lifting block 7.

As shown in fig. 1, the lifting mechanism comprises a through hole 23 arranged at the top of the cylinder 5 and a lifting rod 24 arranged on the lifting block 7 and in threaded connection with the through hole 23; when the lifting rod 24 is rotated, the on-off of the first oil guide port 401 and the second oil guide port 402 can be controlled, and the adjustment is simple and convenient.

The lubricating oil filtering mode of the box body comprises the following three modes:

1. when the first filter vat 2 works normally, the first oil guide port 401 and the second oil guide port 402 are plugged by the lifting block 7, and lubricating oil enters the first cavity 101 through the oil inlet 104, enters the second cavity 102 after being filtered by the first filter vat 2, and finally flows out of the oil outlet 105.

2. When first filter vat 2 is partly blockked up, lead to the flow of lubricating oil to diminish, perhaps when first filter vat 2 is not blockked up and need improve the flow of lubricating oil, drive elevator 7 rebound through elevating system, the first hydraulic fluid port 401 and the second hydraulic fluid port 402 are led to the intercommunication, lubricating oil loops through first hydraulic fluid port 401 of leading, the inner chamber 6 leads hydraulic fluid port 402 with the second and gets into in the third cavity 103, lubricating oil in the third cavity 103 filters and flows out from oil-out 105 through second filter vat 3, the flow of lubricating oil has been improved, improve the filter speed of lubricating oil.

3. When first filter vat 2 blocks up, and when nobody is on duty, can not open elevator 7 voluntarily, elevator 7 has plugged up first oil guide port 401 and second oil guide port 402, along with the entering of fluid, the pressure increase in first cavity 101, lubricating oil extrusion end cap 11, end cap 11 drives expanding spring 12 upwards to shrink, first water conservancy diversion shrinkage pool 8 with overflow channel 10 intercommunication, lubricating oil passes through second water conservancy diversion shrinkage pool 9 and second filter vat 3 in proper order, and flow from oil-out 105, lubricating oil is automatic to be filtered through second filter vat 3, the safety in utilization of this box has been improved.

In the description herein, reference to the description of the terms "preferred embodiment," "one embodiment," "some embodiments," "an example," "a specific example" or "some examples" or the like means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims (7)

1. A crankcase body of a motorcycle engine comprises a case body (1) with a containing cavity, wherein a first filter barrel (2) and a second filter barrel (3) which divide the containing cavity into a first cavity (101), a second cavity (102) and a third cavity (103) which are sequentially distributed from outside to inside are arranged in the containing cavity, the second filter barrel (3) is arranged in the first filter barrel (2), the crankcase body is characterized in that the case body (1) is provided with an oil inlet (104) communicated with the first cavity (101) and an oil outlet (105) communicated with the second cavity (102), the top surface of the case body (1) is provided with a first oil guide port (401) communicated with the first cavity (101) and a second oil guide port (402) communicated with the third cavity (103), and the top of the case body (1) is provided with a cylinder body (5) which covers the first oil guide port (401) and the second oil guide port (402), the oil cylinder is characterized in that an inner cavity (6) communicated with the first oil guide port (401) and the second oil guide port (402) is formed in the cylinder body (5), a lifting block (7) driven by a lifting mechanism and used for controlling the connection and disconnection of the first oil guide port (401) and the second oil guide port (402) is arranged in the inner cavity (6), and the lifting block (7) is in sliding fit in the inner cavity (6).

2. The motorcycle engine crankcase body according to claim 1, wherein the lifting block (7) is provided with a first flow guiding concave hole (8) which is communicated with the first oil guiding port (401) and is longitudinally arranged and a second flow guiding concave hole (9) which is communicated with the second oil guiding port (402), the first flow guiding concave hole (8) is communicated with the second flow guiding concave hole (9) through an overflowing channel (10) arranged in the lifting block (7), a plug (11) used for controlling the on-off of the overflowing channel (10) is arranged in the first flow guiding concave hole (8) in a matching manner, the top of the plug (11) is provided with a telescopic spring (12), and the top end of the telescopic spring (12) acts on the top end of the first flow guiding concave hole (8).

3. A motorcycle engine crankcase body according to claim 1, wherein the top surface of the accommodating cavity is provided with a first annular groove (13) matched with the first filter barrel (2), the top surface of the accommodating cavity is further provided with a second annular groove (14) matched with the second filter barrel (3), and the first filter barrel (2) and the second filter barrel (3) are connected to the case body (1) through a detachable connection structure.

4. A motorcycle engine crankcase body according to claim 3, wherein a connecting port (15) communicated with the accommodating cavity is formed in the bottom surface of the case body (1), a connecting plate (16) is arranged in the connecting port (15) in a matching manner, a third annular groove (17) opposite to the first annular groove (13) is formed in the connecting plate (16), a fourth annular groove (18) opposite to the second annular groove (14) is further formed in the connecting plate (16), the lower end of the first filter barrel (2) is located in the third annular groove (17), and the lower end of the second filter barrel (3) is located in the fourth annular groove (18).

5. A motorcycle engine crankcase body according to claim 4, wherein the connecting plate (16) is provided with a through hole (19), the case body (1) is provided with a locking hole (20) opposite to the through hole (19), a locking piece (21) is arranged in the locking hole (20), and the part of the locking piece (21) penetrating through the locking hole (20) is in threaded connection with the through hole (19).

6. A motorcycle engine crankcase according to claim 2, wherein the bottom of the lifting block (7) is provided with a retaining block (22) at the opening of the first diversion concave hole (8).

7. A motorcycle engine crankcase as claimed in claim 1, wherein said lifting mechanism comprises a through hole (23) provided on the top of the cylinder (5) and a lifting rod (24) provided on the lifting block (7) and screwed to the through hole (23).

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