CN221037741U - Temperature detection structure of crankshaft thrust plate and engine - Google Patents
Temperature detection structure of crankshaft thrust plate and engine Download PDFInfo
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- CN221037741U CN221037741U CN202323061292.3U CN202323061292U CN221037741U CN 221037741 U CN221037741 U CN 221037741U CN 202323061292 U CN202323061292 U CN 202323061292U CN 221037741 U CN221037741 U CN 221037741U
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- crankshaft
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- temperature detection
- working surface
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- 238000001514 detection method Methods 0.000 title claims abstract description 49
- 238000009434 installation Methods 0.000 description 8
- 230000002159 abnormal effect Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 5
- 230000009286 beneficial effect Effects 0.000 description 3
- 238000012544 monitoring process Methods 0.000 description 3
- 238000004891 communication Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000000956 alloy Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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Abstract
The utility model provides a temperature detection structure of a crankshaft thrust plate and an engine, and relates to the technical field of engine detection structures. The temperature detection structure of the crankshaft thrust plate comprises a machine body, a crankshaft, the thrust plate and a temperature detection piece. The machine body is provided with a working cavity, and the crankshaft is arranged on the machine body and at least partially positioned in the working cavity. The thrust plate is mounted in the working chamber of the machine body and is adapted to contact the crankshaft to stop axial movement of the crankshaft. The thrust plate is provided with a working surface and a non-working surface which are opposite, the non-working surface is provided with a mounting blind hole facing the working surface, the temperature detection part is mounted in the mounting blind hole, and the temperature of the working surface is detected through the temperature detection part. Through this structure setting, with the setting of temperature-detecting piece at the non-working face of thrust plate to effectively avoided the occupation to thrust clearance, effectively avoided the influence of motion such as crank of bent axle to the signal line, guaranteed temperature detection's stability.
Description
Technical Field
The utility model relates to the technical field of engine detection structures, in particular to a temperature detection structure of a crankshaft thrust plate and an engine.
Background
In the working process of the engine, the crankshaft has a certain amount of movement in the axial direction, and the thrust plate has the function of preventing the axial movement of the crankshaft from being too large on the premise of ensuring the normal rotation of the crankshaft, so that the engine body or the crankshaft is prevented from being seriously damaged due to abnormal contact between the crankshaft and the thrust plate. When the axial movement of the crankshaft is abnormal, the crankshaft and the thrust plate are in abnormal contact, the surface temperature of the thrust plate is abnormally increased, the alloy layers on the surfaces of the crankshaft and the thrust plate are seriously worn or fall off due to serious faults, and great losses of manpower, material resources and financial resources are caused.
The temperature of the thrust plate is one of the most direct means capable of reflecting the abnormal contact state of the thrust plate and the crankshaft, and the following difficulties mainly exist in monitoring the temperature of the thrust plate:
(1) The structure of the thrust plate arranged on the engine body is compact, the axial thrust gap is in millimeter level and is generally smaller than 1 millimeter, and the installation space is very limited in consideration of the influence of the end face of a crank and the like;
(2) Although the thrust plate basically does not have obvious movement in the working process, the crankshaft is always in a high-speed rotation state, so that the rotation of the crank can cause great difficulty in monitoring the temperature of the thrust plate, and related wire harnesses are required to be ensured not to be influenced by moving parts such as the crank;
In view of the above background and difficulties, it is currently difficult to monitor the temperature of the thrust plate in the real machine state.
Disclosure of utility model
The following presents a simplified summary of one or more aspects in order to provide a basic understanding of such aspects. This summary is not an extensive overview of all contemplated aspects, and is intended to neither identify key or critical elements of all aspects nor delineate the scope of any or all aspects. Its sole purpose is to present some concepts of one or more aspects in a simplified form as a prelude to the more detailed description that is presented later.
The utility model aims to provide a temperature detection structure of a crankshaft thrust plate, which can effectively detect the temperature of the thrust plate in a real machine state.
The utility model also aims to provide an engine which can effectively detect the temperature of the thrust plate in a real machine state.
Embodiments of the present utility model may be implemented by:
A crankshaft thrust plate temperature detection structure, the crankshaft thrust plate temperature detection structure comprising:
The machine body is provided with a working cavity;
A crankshaft mounted on the machine body, at least part of the crankshaft being located in the working chamber;
the thrust plate is arranged on the machine body and is positioned in the working cavity; the thrust plate is used for contacting with the crankshaft to stop the axial movement of the crankshaft; and
A temperature detecting member mounted on the thrust plate to detect a temperature of the thrust plate;
The thrust plate is provided with a working surface and a non-working surface which are opposite to each other, the non-working surface is provided with a mounting blind hole which faces to the working surface, and the temperature detection piece is mounted in the mounting blind hole and used for detecting the temperature of the working surface.
Optionally, a wire slot communicated with the mounting blind hole is formed in the non-working surface, and the wire slot is used for accommodating a signal wire of the temperature detection piece.
Optionally, the thrust plate is further provided with a wire outlet hole, one end of the wire outlet hole is communicated with the wire slot, and the other end of the wire outlet hole forms an opening on the outer circumferential surface of the thrust plate so as to lead the signal wire out of the thrust plate from the opening.
Optionally, a clamping groove is formed in the machine body, one side of the non-working surface of the thrust plate is clamped into the clamping groove, and the working surface of the thrust plate is positioned outside the clamping groove; the opening is positioned outside the clamping groove.
Optionally, a portion of the signal line from which the thrust plate is led out of the opening is fixedly connected to an inner wall surface of the body, and led out of the body along the inner wall surface of the body.
Optionally, the thrust plate is provided with a plurality of mounting blind holes, the number of the temperature detecting pieces is plural, and the temperature detecting pieces are mounted in the mounting blind holes in a one-to-one correspondence manner.
Optionally, the thrust plate is semi-annular, the number of the installation blind holes is three, and the three installation blind holes are uniformly distributed in the circumferential direction of the thrust plate.
Optionally, the thrust plate comprises two semi-annular thrust parts, and the two thrust parts are spliced to form an annular piece sleeved on the crankshaft; the number of the mounting blind holes is four, and the four mounting blind holes are uniformly distributed along the circumferential direction of the thrust plate.
Optionally, the temperature detecting piece adopts a flexible K-type thermal resistor.
An engine comprising the above-described crankshaft thrust plate temperature detection structure.
The crankshaft thrust plate temperature detection structure and the engine provided by the embodiment of the utility model have the beneficial effects that:
The embodiment of the utility model provides a temperature detection structure of a crankshaft thrust plate, which comprises a machine body, a crankshaft, the thrust plate and a temperature detection piece. The machine body is provided with a working cavity, and the crankshaft is arranged on the machine body and at least partially positioned in the working cavity. The thrust plate is mounted in the working chamber of the machine body and is adapted to contact the crankshaft to stop axial movement of the crankshaft. The thrust plate is provided with a working surface and a non-working surface which are opposite, the non-working surface is provided with a mounting blind hole facing the working surface, the temperature detection part is mounted in the mounting blind hole, the temperature of the working surface is detected through the temperature detection part, and then the temperature change information of the thrust plate is obtained. Through this structure setting, with the setting of temperature detection spare at the non-working face of thrust piece to effectively avoided the occupation to the thrust clearance, the signal line of temperature detection spare also is located the non-working face one side of thrust piece simultaneously, effectively avoids the motion such as crank of bent axle to the influence of signal line, guarantees temperature detection's stability, helps realizing the detection to thrust piece temperature under the real machine state.
The embodiment of the utility model also provides an engine, which comprises the temperature detection structure of the crankshaft thrust plate, so that the engine has the beneficial effects of avoiding the influence of the motion of a crank and the like of the crankshaft on a signal line, ensuring the stability of temperature detection and being beneficial to realizing the detection of the temperature of the thrust plate in a real machine state.
Drawings
The above features and advantages of the present utility model will be better understood after reading the detailed description of embodiments of the present disclosure in conjunction with the following drawings. In the drawings, the components are not necessarily to scale and components having similar related features or characteristics may have the same or similar reference numerals.
FIG. 1 illustrates a schematic structural diagram of an engine provided in accordance with an aspect of the present disclosure;
FIG. 2 illustrates a schematic diagram of an installation structure of a temperature detecting member on a thrust plate in a temperature detecting structure of a crankshaft thrust plate according to an aspect of the present utility model;
Fig. 3 is a schematic view showing a mounting structure of a thrust plate and a machine body in the temperature detection structure of a crankshaft thrust plate according to an aspect of the present utility model.
Reference numerals:
10-an engine; 100-a temperature detection structure of a crankshaft thrust plate; 110-a body; 111-working chamber; 112-a clamping groove; 120-crank shaft; 130-thrust plate; 131—working face; 132—non-working face; 133-mounting a blind hole; 134-wire slots; 135-wire outlet holes; 136-opening; 140-a temperature detecting member; 141-signal lines; 200-temperature acquisition equipment.
Detailed Description
The utility model is described in detail below with reference to the drawings and the specific embodiments. It is noted that the aspects described below in connection with the drawings and the specific embodiments are merely exemplary and should not be construed as limiting the scope of the utility model in any way.
In the description of the present utility model, it should be noted that, if the terms "upper," "lower," "inner," "outer," "vertical," and the like indicate an orientation or a positional relationship based on that shown in the drawings or that the inventive product is conventionally put in place when used, it does not indicate or imply that the apparatus or element in question must have a specific orientation or be constructed and operated in a specific orientation, and therefore, the present utility model should not be construed as being limited thereto.
Meanwhile, it should be noted that the terms "first," "second," and the like, if any, are used solely for distinguishing descriptions and not to be construed as indicating or implying relative importance.
In the description of the present utility model, it should also be noted that, unless explicitly specified or limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly and may be, for example, fixedly connected, integrally connected, or detachably connected; can be mechanically or electrically connected; may be directly connected, or may be indirectly connected through an intermediate medium, or may be communicated with the inside of two elements. The specific meaning of the above terms in the present utility model can be understood as appropriate by those of ordinary skill in the art.
Fig. 1 is a schematic structural diagram of an engine 10 according to the present embodiment, fig. 2 is a schematic structural diagram of an installation structure of a temperature detecting member 140 on a thrust plate 130 in a temperature detecting structure 100 for a thrust plate of a crankshaft according to the present embodiment, and fig. 3 is a schematic structural diagram of an installation structure of a thrust plate 130 and a machine body 110 in a temperature detecting structure 100 for a thrust plate of a crankshaft according to the present embodiment. Referring to fig. 1-3 in combination, a temperature sensing structure 100 for a crankshaft thrust plate is provided in the present embodiment, and accordingly, an engine 10 is also provided.
Engine 10 includes a crankshaft thrust plate temperature sensing arrangement 100, and engine 10 also includes a temperature sensing member 140 in communication with 200, 200 disposed outside of body 110, and configured to sense the temperature of thrust plate 130 by sensing the temperature of thrust plate 130 by 200 acquired by temperature sensing member 140. It will be appreciated that in other embodiments, the temperature detecting member 140 may be connected to an integrated device such as an electronic management system of the engine 10, so as to detect the temperature of the thrust plate 130, and determine the abnormal contact state between the thrust plate 130 and the crankshaft 120 by using characteristic parameters such as a temperature variation trend or a limit value of the thrust plate 130, for example, a temperature rising rate, a maximum temperature value, etc.
The temperature detecting structure 100 for a crankshaft thrust plate includes a body 110, a crankshaft 120, a thrust plate 130, and a temperature detecting member 140. The body 110 has a working chamber 111, and the crankshaft 120 is mounted on the body 110 and at least partially located in the working chamber 111. The thrust plate 130 is installed in the working chamber 111 of the body 110, and the thrust plate 130 is used to contact the crankshaft 120 to stop the axial movement of the crankshaft 120. The thrust plate 130 has a working surface 131 and a non-working surface 132 opposite to each other, the non-working surface 132 is provided with a mounting blind hole 133 facing the working surface 131, the temperature detecting member 140 is mounted in the mounting blind hole 133, and the temperature of the working surface 131 is detected by the temperature detecting member 140, so as to obtain temperature change information of the thrust plate 130. Through this structure setting, with temperature detection spare 140 setting at thrust plate 130's non-working face 132 to effectively avoided the occupation to thrust gap, temperature detection spare 140's signal line 141 also is located thrust plate 130's non-working face 132 one side simultaneously, effectively avoids the influence of motion such as crank of bent axle 120 to signal line 141, guarantees temperature detection's stability, helps realizing the detection to thrust plate 130 temperature under the real machine state.
Specifically, the working surface 131 of the thrust plate 130 is a surface of the thrust plate 130 contacting the crankshaft 120 to stop the axial movement of the crankshaft 120, and correspondingly, the working surface of the thrust plate 130 is a surface of the other axial side of the thrust plate 130 opposite to the working surface 131.
Alternatively, the distance between the mounting blind hole 133 and the working surface 131 is 2mm to 4mm, i.e., the distance between the mounting blind hole 133 and the working surface 131 can be set to 2mm, 3mm, or 4mm. By setting the distance between the mounting blind hole 133 and the working surface 131, the temperature detecting member 140 is as close to the working surface 131 as possible, and the accuracy of temperature detection is ensured.
In this embodiment, the non-working surface 132 is provided with a wire slot 134 communicating with the mounting blind hole 133, the wire slot 134 is used for accommodating the signal wire 141 of the temperature detecting member 140, and the signal wire 141 is accommodated in the wire slot 134, so that the non-working surface 132 is not protruded, and the arrangement of the temperature detecting member 140 does not affect the mounting of the thrust plate 130, and meanwhile, the plane of the working surface 131 of the thrust plate 130 is also helpful to be perpendicular to the axis of the crankshaft 120. Alternatively, in the present embodiment, the groove width of the wire groove 134 is set to 5mm and the groove depth is set to 3mm.
Further, in order to ensure the fixing of the signal line 141 in the slot 134, after the signal line 141 is mounted in the slot 134, structural glue may be further poured into the slot 134, so as to fix the signal line 141.
Further, the thrust plate 130 is further provided with a wire outlet hole 135, one end of the wire outlet hole 135 is communicated with the wire slot 134, and the other end of the wire outlet hole 135 penetrates through the outer circumferential surface of the thrust plate 130, and an opening 136 is formed in the outer circumferential surface of the thrust plate 130, so that the signal wire 141 is led out of the thrust plate 130 from the opening 136.
Specifically, as shown in fig. 3, in the present embodiment, the body 110 is provided with a clamping groove 112, and the depth of the clamping groove 112 is smaller than the thickness of the thrust plate 130. The thickness of the thrust plate 130 is the distance between the working surface 131 and the non-working surface 132. The non-working surface 132 side of the thrust plate 130 is clamped into the clamping groove 112, and since the depth of the clamping groove 112 is smaller than the thickness of the thrust plate 130, the working surface 131 side of the thrust plate 130 protrudes out of the clamping groove 112, so that part of the outer circumferential surface of the thrust plate 130 is located in the clamping groove 112, the other part protrudes out of the clamping groove 112, and the opening 136 is located outside the clamping groove 112, i.e. the opening 136 is located on the part of the outer circumferential surface of the thrust plate 130 protruding out of the clamping groove 112. The signal wire 141 is led out of the thrust plate 130 from the opening 136 and then enters the working chamber 111 of the body 110.
Further, after the signal line 141 is led out from the opening 136, a portion located outside the thrust plate 130 is fixedly connected to the inner wall surface of the body 110, and led out of the body 110 along the inner wall surface of the body 110, and finally electrically connected to the temperature detecting member 140 and 200, so as to realize communication between the temperature detecting member 140 and 200. Alternatively, the signal line 141 may be fixed to the inner wall surface of the body 110 by spot welding, wire clamping, or the like.
In this embodiment, the thrust plate 130 is provided with a plurality of mounting blind holes 133, the number of the temperature detecting members 140 is plural, and the plurality of temperature detecting members 140 are mounted in the plurality of mounting blind holes 133 in a one-to-one correspondence manner, so as to realize comprehensive detection of the temperature of the thrust plate 130.
In general, the thrust plate 130 is a single semi-annular structure or is provided as an annular member, and in particular, the thrust plate 130 is formed by splicing semi-annular thrust portions of two plates to form an annular member. As shown in fig. 2, in the present embodiment, the number of the mounting blind holes 133 is three in the semi-annular structure of the tail of the thrust plate 130, the three mounting blind holes 133 are uniformly distributed in the circumferential direction of the thrust plate 130, and accordingly, the number of the temperature detecting members 140 is three, and the three temperature detecting members 140 are mounted in the three mounting blind holes 133 in a one-to-one correspondence. Specifically, since the thrust plate 130 is a single semi-annular shape having a corresponding central angle of 180 °, the three mounting blind holes 133 are uniformly distributed in the circumferential direction of the thrust plate 130, and the corresponding central angle between two adjacent mounting blind holes 133 is set to be approximately 90 °.
It should be noted that the structure of the thrust plate 130 is not limited herein, and it is to be understood that, in other embodiments, the thrust plate 130 may be configured as an annular member formed by splicing two semi-annular thrust portions, at this time, the number of the mounting blind holes 133 may be four, the four mounting blind holes 133 are uniformly distributed along the circumferential direction of the thrust plate 130, and a corresponding central angle between two adjacent mounting blind holes 133 is set to be about 90 °. Accordingly, the number of temperature detecting pieces 140 at this time is set to four.
It should be further noted that the number of the mounting blind holes 133 and the temperature detecting members 140 is not limited herein, and it is understood that in other embodiments, the number and positions of the mounting blind holes 133 on the thrust plate 130 may be specifically required.
In this embodiment, the temperature detecting member 140 employs a conventional flexible K-type thermal resistor. It will be appreciated that in other embodiments, other temperature sensors may be used as desired, such as a temperature sensor with a bending portion tailored to the configuration of the mounting blind hole 133, to ensure that the temperature sensing member 140 is mounted to a corresponding mounting location within the slot 134 of the thrust plate 130, and to ensure that the flatness of the non-working surface 132 of the thrust plate 130 is not altered by the protrusion of the sensor.
The embodiment of the utility model provides a temperature detection structure 100 of a crankshaft thrust plate and an engine 10, wherein a temperature detection piece 140 is arranged on a non-working surface 132 of a thrust plate 130, and the non-working surface 132 is provided with a structure for accommodating a signal wire 141, such as a wire groove 134, so as to avoid the influence of the installation of the temperature detection piece 140 on the installation of the thrust plate 130, and the temperature detection structure 100 of the crankshaft thrust plate can be applied to a real machine state, and simultaneously ensure that the temperature of the working surface 131 of the thrust plate 130 is comprehensively and accurately detected, and finally the temperature signal is transmitted to 200 through the signal wire 141, thereby realizing the acquisition and monitoring of the temperature of the thrust plate 130.
The foregoing is merely illustrative of the present utility model, and the present utility model is not limited thereto, and any changes or substitutions easily contemplated by those skilled in the art within the technical scope of the present utility model should be included in the scope of the present utility model.
Claims (10)
1. The utility model provides a bent axle thrust plate temperature detection structure which characterized in that, bent axle thrust plate temperature detection structure includes:
The machine body is provided with a working cavity;
A crankshaft mounted on the machine body, at least part of the crankshaft being located in the working chamber;
the thrust plate is arranged on the machine body and is positioned in the working cavity; the thrust plate is used for contacting with the crankshaft to stop the axial movement of the crankshaft; and
A temperature detecting member mounted on the thrust plate to detect a temperature of the thrust plate;
The thrust plate is provided with a working surface and a non-working surface which are opposite to each other, the non-working surface is provided with a mounting blind hole which faces to the working surface, and the temperature detection piece is mounted in the mounting blind hole and used for detecting the temperature of the working surface.
2. The structure for detecting the temperature of a thrust plate of a crankshaft according to claim 1, wherein,
The non-working surface is provided with a wire slot communicated with the mounting blind hole, and the wire slot is used for accommodating a signal wire of the temperature detection piece.
3. The structure for detecting the temperature of a thrust plate of a crankshaft according to claim 2, wherein,
And the thrust plate is also provided with a wire outlet hole, one end of the wire outlet hole is communicated with the wire slot, and the other end of the wire outlet hole forms an opening on the outer circumferential surface of the thrust plate so as to lead the signal wire out of the thrust plate from the opening.
4. The structure for detecting the temperature of a thrust plate of a crankshaft according to claim 3, wherein,
The machine body is provided with a clamping groove, one side of the non-working surface of the thrust plate is clamped into the clamping groove, and the working surface of the thrust plate is positioned outside the clamping groove; the opening is positioned outside the clamping groove.
5. The structure for detecting the temperature of a thrust plate of a crankshaft according to claim 3, wherein,
The part of the signal wire, which is led out of the thrust plate from the opening, is fixedly connected to the inner wall surface of the machine body, and is led out of the machine body along the inner wall surface of the machine body.
6. The structure for detecting the temperature of a thrust plate of a crankshaft according to claim 1, wherein,
The thrust plate is provided with a plurality of mounting blind holes, the number of the temperature detection pieces is multiple, and the temperature detection pieces are arranged in the mounting blind holes in a one-to-one correspondence manner.
7. The structure for detecting the temperature of a thrust plate of a crankshaft as claimed in claim 6, wherein,
The thrust plate is semi-annular, the number of the mounting blind holes is three, and the three mounting blind holes are uniformly distributed in the circumferential direction of the thrust plate.
8. The structure for detecting the temperature of a thrust plate of a crankshaft as claimed in claim 6, wherein,
The thrust plate comprises two semi-annular thrust parts, and the two thrust parts are spliced to form an annular piece sleeved on the crankshaft; the number of the mounting blind holes is four, and the four mounting blind holes are uniformly distributed along the circumferential direction of the thrust plate.
9. The structure for detecting the temperature of a thrust plate of a crankshaft according to claim 1, wherein,
The temperature detection part adopts a flexible K-type thermal resistor.
10. An engine, which is characterized in that,
The engine comprising a crankshaft thrust plate temperature detection structure as claimed in any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323061292.3U CN221037741U (en) | 2023-11-13 | 2023-11-13 | Temperature detection structure of crankshaft thrust plate and engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323061292.3U CN221037741U (en) | 2023-11-13 | 2023-11-13 | Temperature detection structure of crankshaft thrust plate and engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221037741U true CN221037741U (en) | 2024-05-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202323061292.3U Active CN221037741U (en) | 2023-11-13 | 2023-11-13 | Temperature detection structure of crankshaft thrust plate and engine |
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| Country | Link |
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| CN (1) | CN221037741U (en) |
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2023
- 2023-11-13 CN CN202323061292.3U patent/CN221037741U/en active Active
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