Engine valve seat grinding device

Abstract

The utility model discloses an engine valve seat grinding device which has a preset direction and comprises a transmission assembly and a fixing seat. The transmission assembly comprises a plurality of camshafts, the multiple camshafts are arranged in a surrounding mode in the preset direction, each camshaft rotates in the preset direction, and any two adjacent camshafts are in meshing transmission; the fixing base comprises a plurality of fixing structures, the fixing structures are arranged on the cam shafts in a surrounding mode in the preset direction, each fixing structure is arranged opposite to one cam shaft, each fixing structure is provided with a plurality of fixing parts, the fixing parts are arranged in the preset direction, and each fixing part is used for fixing one engine. Each cam shaft is used for being in transmission with a tappet of an engine fixed to the same fixing structure. According to the engine valve seat grinding device, batch grinding of engine valve seats can be achieved.

Description

Technical Field

[0001] The present application relates to the field of engine technology, and in particular to an engine valve seat grinding device. Background Art

[0002] The valve is the engine's intake and exhaust channel, responsible for controlling the flow of air and fuel in and out of the cylinder. Grinding the valve seat surface can maintain the valve's sealing and reliability, ensuring the normal operation of the vehicle. In traditional engine valve seat grinding devices, usually only one valve seat can be ground at a time. However, there are usually multiple valve seats on an engine, and when the engine needs to be mass-produced, production efficiency will be greatly reduced. Utility Model Content

[0003] In view of this, the purpose of this application is to overcome the deficiencies in the prior art and to provide an engine valve seat grinding device that can achieve batch grinding of engine valve seats.

[0004] To achieve the above objectives, the technical solutions adopted in this application are as follows:

[0005] According to the engine valve seat grinding device of the embodiment of the present application, there is a preset direction, and the engine valve seat grinding device includes: a transmission assembly, the transmission assembly includes multiple camshafts, the multiple camshafts are arranged around the preset direction, each of the camshafts rotates around the preset direction, and any two adjacent camshafts are engaged for transmission; a fixed seat, the fixed seat includes multiple fixing structures, the multiple fixing structures are arranged on the camshafts around the preset direction, and each of the fixing structures is arranged opposite to one of the camshafts, each of the fixing structures has multiple fixing parts, the multiple fixing parts are arranged along the preset direction, and each of the fixing parts is used to fix an engine, and each of the camshafts is used to transmit with the tappet of the engine fixed on the same fixing structure.

[0006] The engine valve seat grinding device of the present application has the following advantages:

[0007] In the engine valve seat grinding device of the present application, the camshaft can be driven by the engine tappet to push the engine tappet to achieve the grinding of the valve seat. Since the transmission assembly includes multiple camshafts and the fixed seat includes multiple fixed structures, each fixed structure is arranged opposite to a camshaft. In this way, the multiple camshafts can be respectively driven by the tappet of the generator on a fixed structure to achieve the grinding of the valve seats of multiple generators at the same time. Since each fixed structure has multiple fixing parts, and each fixing part is used to fix a generator, each fixed structure can fix multiple generators, so that each camshaft can be driven by the tappet of multiple generators, thereby further increasing the number of valve seats ground at the same time, realizing batch grinding of engine valve seats, and improving the production efficiency of the engine.

[0008] According to the engine valve seat grinding device of the embodiment of the present application, the fixing seat also includes a main structure, and a plurality of the fixing structures are arranged on the main structure at intervals around the preset direction. The main structure is provided with an accommodating cavity, and at least a portion of each camshaft along its axial direction is passed through the accommodating cavity. Each of the fixing parts is provided with a fixing cavity, and the fixing cavity is communicated with the accommodating cavity. The tappet of the engine is at least partially passed through the fixing cavity.

[0009] According to the engine valve seat grinding device of the embodiment of the present application, the fixing portion is further provided with a plurality of fixing holes, the plurality of fixing holes are spaced apart from the fixing cavity, and the plurality of fixing holes are arranged around the fixing cavity.

[0010] According to the engine valve seat grinding device of the embodiment of the present application, the fixing portion has a fixing surface, the fixing surface is provided with an avoidance hole, the avoidance hole is connected to the fixing cavity, the fixing hole is opened on the fixing surface and is spaced apart from the avoidance hole.

[0011] According to the engine valve seat grinding device of the embodiment of the present application, in the fixing structure and the camshaft corresponding to the fixing structure, the distance between each fixing surface and the camshaft along the radial direction of the camshaft is equal.

[0012] According to the engine valve seat grinding device of an embodiment of the present application, the transmission assembly further includes a driving member, which is connected to any one of the camshafts and is used to drive the camshaft to rotate around the preset direction.

[0013] According to the engine valve seat grinding device of an embodiment of the present application, the transmission assembly also includes a first transmission member and a second transmission member, the first transmission member is connected to the driving member, the driving member is used to drive the first transmission member to rotate around the preset direction, the second transmission member is transmission-connected to the first transmission member, and the second transmission member is fixedly connected to any one of the camshafts.

[0014] According to the engine valve seat grinding device of an embodiment of the present application, the first transmission member and the second transmission member are spaced apart, and the transmission assembly further includes a tensioning member, which is tensioned on the first transmission member and the second transmission member.

[0015] According to the engine valve seat grinding device of the embodiment of the present application, the second transmission member is engaged with the first transmission member for transmission.

[0016] According to the engine valve seat grinding device of the embodiment of the present application, the transmission assembly includes two camshafts, the two camshafts are engaged for transmission, there are two fixing structures, and each of the fixing structures is arranged close to one of the camshafts. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following is a brief introduction to the drawings required for use in the embodiments. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without creative work.

[0018] Figure 1 A schematic diagram of the three-dimensional structure of the engine valve seat grinding device in this application is shown;

[0019] Figure 2 A schematic side view of the structure of the engine valve seat grinding device in the present application is shown;

[0020] Figure 3 A schematic diagram of the three-dimensional structure of the fixing seat in this application is shown;

[0021] Figure 4 A schematic structural diagram of the engine in this application is shown.

[0022] Description of main component symbols:

[0023] 10-Engine valve seat grinding device;

[0024] 100-transmission assembly; 110-camshaft; 120-driving member; 130-first transmission member; 140-second transmission member; 150-tensioning member;

[0025] 200-fixing seat; 210-fixing structure; 211-fixing portion; 2111-fixing cavity; 2112-fixing hole; 2113-fixing surface; 2114-avoidance hole; 220-main structure; 221-accommodating cavity;

[0026] 20-engine; 21-tappet; 22-push rod; 23-rocker arm; 24-rocker arm mounting bracket; 25-valve; 26-valve seat;

[0027] x - Preset direction. DETAILED DESCRIPTION

[0028] The following describes in detail embodiments of the present application. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present application and are not to be construed as limiting the present application.

[0029] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0030] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. Throughout the description of this application, "plurality" means two or more, unless otherwise specifically defined.

[0031] In this application, unless otherwise expressly specified or limited, terms such as "mounted," "connected," "connect," and "fixed" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integration; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal connections between two components or interactions between two components. Those skilled in the art will understand the specific meanings of these terms in this application based on specific circumstances.

[0032] In this application, unless otherwise expressly specified or limited, when a first feature is "above" or "below" a second feature, it may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Furthermore, when a first feature is "above," "above," or "above" a second feature, it may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is "below," "below," or "below" a second feature, it may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0033] Reference Figure 1 as well as Figure 3 As shown, the engine valve seat grinding device 10 involved in the embodiment of the present application has a preset direction x. The engine valve seat grinding device 10 includes: a transmission assembly 100 and a fixing seat 200.

[0034] Specifically, the transmission assembly 100 includes a plurality of camshafts 110, which are arranged around a preset direction x, each camshaft 110 rotates around the preset direction x, and any two adjacent camshafts 110 are engaged for transmission; the fixing seat 200 includes a plurality of fixing structures 210, which are arranged around the preset direction x on the camshaft 110, and each fixing structure 210 is arranged opposite to a camshaft 110, each fixing structure 210 has a plurality of fixing parts 211, and the plurality of fixing parts 211 are arranged along the preset direction x, and each fixing part 211 is used to fix an engine 20, and each camshaft 110 is used to transmit with the tappet 21 of the engine 20 fixed on the same fixing structure 210.

[0035] It should be noted that the preset direction x is Figure 1 as well as Figure 3 The direction pointed by x.

[0036] It should be noted that, referring to Figure 4 As shown, the engine 20 includes a tappet 21, a push rod 22, a rocker arm 23, a rocker arm fixing frame 24, a valve 25 and a valve seat 26. The two ends of the rocker arm 23 are rotatably connected to the push rod 22 and the valve 25 respectively, and the middle part of the rocker arm 23 is connected to the fixing seat 200 and is rotatably connected to the fixing seat 200. The end of the push rod 22 away from the rocker arm 23 is fixedly connected to the tappet 21, and the end of the valve 25 away from the rocker arm 23 is correspondingly arranged to the valve seat 26. The push rod 22 can be pushed up and down by the camshaft 110 through the transmission of the camshaft 110 and the tappet 21, and then the valve 25 can be moved up and down through the transmission of the rocker arm 23, so that the valve 25 can contact the valve seat 26, thereby realizing the grinding of the valve 25 on the valve seat 26.

[0037] In the engine valve seat grinding device 10 of the present application, the camshaft 110 can be driven by the tappet 21 of the engine 20 to push the tappet 21 of the engine 20 to achieve grinding of the valve seat 26. Since the transmission assembly 100 includes multiple camshafts 110, the fixing seat 200 includes multiple fixing structures 210, and each fixing structure 210 is arranged opposite to a camshaft 110, so that the multiple camshafts 110 can be driven by the tappet 21 of the generator on a fixing structure 210. It can move to realize the grinding of the valve seats 26 of multiple generators at the same time. Since each fixing structure 210 has multiple fixing parts 211, and each fixing part 211 is used to fix a generator, each fixing structure 210 can fix multiple generators, so that each camshaft 110 can be transmitted to the tappets 21 of multiple generators, thereby further increasing the number of valve seats 26 ground at the same time, realizing batch grinding of the valve seats 26 of the engine 20, and improving the production efficiency of the engine 20.

[0038] Reference Figure 3 As shown, the fixing seat 200 also includes a main structure 220, and a plurality of fixing structures 210 are arranged on the main structure 220 at intervals around a preset direction x. The main structure 220 is provided with a receiving cavity 221, and at least a portion of each camshaft 110 along its axial direction is passed through the receiving cavity 221. Each fixing portion 211 is provided with a fixing cavity 2111, and the fixing cavity 2111 is communicated with the receiving cavity 221. The tappet 21 of the engine 20 is at least partially passed through the fixing cavity 2111.

[0039] In this embodiment, multiple camshafts 110 can be at least partially accommodated in the accommodating cavity 221 along the axial direction, so that multiple fixing structures 210 can be arranged around the preset direction x outside the multiple camshafts 110, so that each fixing structure 210 can be arranged corresponding to a camshaft 110. Since the tappet 21 of the engine 20 is at least partially passed through the fixing cavity 2111, and the fixing cavity 2111 is connected to the accommodating cavity 221, the tappet 21 of the engine 20 can be transmitted to the camshaft 110 to realize the grinding of the valve seat 26 of the engine 20.

[0040] Continue to refer to Figure 3 As shown, the fixing portion 211 is further provided with a plurality of fixing holes 2112 . The plurality of fixing holes 2112 are spaced apart from the fixing cavity 2111 , and the plurality of fixing holes 2112 are arranged around the fixing cavity 2111 .

[0041] Specifically, in this embodiment, a traction hole is further provided on the engine 20 , and the engine valve seat grinding device 10 further includes a fastener, which is simultaneously passed through the traction hole and the fixing hole 2112 to fix the engine.

[0042] In this embodiment, since multiple fixing holes 2112 are arranged around the fixing cavity 2111, when the tappet 21 of the engine 20 is at least partially inserted into the fixing cavity 2111, the engine 20 can be fixed through the fixing hole 2112. When the tappet 21 of the transmitter is transmitted to the camshaft 110, the structural stability of the engine 20 can be ensured, thereby improving the effect of grinding the valve seat 26 of the engine 20.

[0043] Continue to refer to Figure 3 As shown, the fixing portion 211 has a fixing surface 2113 , the fixing surface 2113 is provided with an avoidance hole 2114 , the avoidance hole 2114 is communicated with the fixing cavity 2111 , and the fixing hole 2112 is provided on the fixing surface 2113 and spaced apart from the avoidance hole 2114 .

[0044] In this embodiment, when the tappet 21 of the engine 20 is at least partially inserted into the fixed cavity 2111, the engine 20 can be fixed on the fixed surface 2113, thereby fixing the engine 20. At the same time, the engine 20 is limited so that the engine 20 can be fixedly installed at a preset position of the fixing seat 200, thereby meeting the transmission requirement between the camshaft 110 and the tappet 21 of the engine 20, thereby ensuring the effect of grinding the valve seat 26 of the engine 20.

[0045] Reference Figure 2 As shown, in the fixing structure 210 and the camshaft 110 corresponding to the fixing structure 210 , the distance between each fixing surface 2113 and the camshaft 110 along the radial direction of the camshaft 110 is equal.

[0046] In this embodiment, in the fixed structure 210 and the camshaft 110 corresponding to the fixed structure 210, since the distance between each fixed surface 2113 and the camshaft 110 along the radial direction of the camshaft 110 is equal, it is possible to ensure that the tappets 21 of multiple engines 20 fixed on the fixed structure 210 can all be transmitted with the camshaft 110. At the same time, when the camshaft 110 rotates around the preset direction x, it is possible to ensure that the moving stroke of the tappet 21 of each engine 20 is the same, so that the grinding degree and grinding effect of the valve seat 26 of each engine 20 are the same, thereby improving the quality consistency of the engine 20 products.

[0047] Reference Figure 2 As shown, the transmission assembly 100 further includes a driving member 120 , which is connected to any one of the camshafts 110 and is used to drive the camshaft 110 to rotate around a preset direction x.

[0048] In this embodiment, since the driving member 120 is connected to any camshaft 110 and is used to drive the camshaft 110 to rotate around the preset direction x, any camshaft 110 can be driven to rotate around the preset direction x by the driving member 120. Since any two adjacent camshafts 110 are engaged for transmission, when any camshaft 110 rotates around the preset direction x, the camshaft 110 can drive each camshaft 110 to rotate around the preset direction x, so that each camshaft 110 can be transmitted to the tappet 21 of the engine 20 on the corresponding fixed structure 210, thereby achieving the purpose of grinding the valve seats 26 of multiple engines 20 at the same time.

[0049] Continue to refer to Figure 2 As shown, the transmission assembly 100 also includes a first transmission member 130 and a second transmission member 140. The first transmission member 130 is connected to the driving member 120. The driving member 120 is used to drive the first transmission member 130 to rotate around a preset direction x. The second transmission member 140 is transmission-connected to the first transmission member 130, and the second transmission member 140 is fixedly connected to any one of the camshafts 110.

[0050] In this embodiment, since the first transmission member 130 is connected to the driving member 120, and the driving member 120 is used to drive the first transmission member 130 to rotate about the preset direction x, the first transmission member 130 can be driven to rotate about the preset direction x by the driving member 120. Since the second transmission member 140 is in transmission connection with the first transmission member 130, when the first transmission member 130 rotates about the preset direction x, the second transmission member 140 can be driven to rotate about the preset direction x by the first transmission member 130. Since the second transmission member 140 is fixedly connected to any camshaft 110, when the second transmission member 140 rotates about the preset direction x, the camshaft 110 fixedly connected thereto can be driven to rotate about the preset direction x by the second transmission member 140. Therefore, the camshaft 110 drives each camshaft 110 to rotate about the preset direction x, so that each camshaft 110 can transmit power to the tappet 21 of the engine 20 on the corresponding fixed structure 210, thereby achieving the purpose of simultaneously grinding the valve seats 26 of multiple engines 20.

[0051] Continue to refer to Figure 2 As shown, the first transmission member 130 and the second transmission member 140 are spaced apart from each other. The transmission assembly 100 further includes a tensioning member 150 , which is tensioned on the first transmission member 130 and the second transmission member 140 .

[0052] Specifically, in this embodiment, the first transmission member 130 and the second transmission member 140 are both transmission pulleys, and the tensioning member 150 is a transmission belt. The transmission between the first transmission member 130 and the second transmission member 140 is achieved by simultaneously tensioning the transmission belt on the first transmission member 130 and the second transmission member 140.

[0053] In this embodiment, since the tensioning member 150 is tensioned on the first transmission member 130 and the second transmission member 140, the transmission between the first transmission member 130 and the second transmission member 140 can be achieved through the tensioning member 150. At this time, the sizes of the first transmission member 130 and the second transmission member 140 can be reduced, so that the first transmission member 130 and the second transmission member 140 can be spaced apart to achieve transmission. In this way, the manufacturing difficulty and installation difficulty of the engine valve seat grinding device 10 of the present application can be reduced. At the same time, the transmission between the first transmission member 130 and the second transmission member 140 through the tensioning member 150 can reduce the transmission torque between the first transmission member 130 and the second transmission member 140, extend the service life of the first transmission member 130 and the second transmission member 140, and improve the transmission efficiency between the first transmission member 130 and the second transmission member 140.

[0054] Specifically, in some other embodiments, the second transmission member 140 is engaged with the first transmission member 130 for transmission.

[0055] In this embodiment, when the driving member 120 drives the first transmission member 130 to rotate around the preset direction x, since the second transmission member 140 is engaged with the first transmission member 130 for transmission, the first transmission member 130 can drive the second transmission member 140 to rotate around the preset direction x, so that the second transmission member 140 can drive the camshaft 110 connected thereto to rotate around the preset direction x, and further enable each camshaft 110 to rotate around the preset direction x, so as to achieve the pushing of the tappet 21 of each engine 20, thereby achieving the grinding of the valve seat 26 of each engine 20.

[0056] Continue to refer to Figure 2 As shown, the transmission assembly 100 includes two camshafts 110 , which are engaged for transmission. There are two fixing structures 210 , and each fixing structure 210 is disposed close to one of the camshafts 110 .

[0057] In this embodiment, since the two camshafts 110 are engaged in transmission, the two camshafts 110 can rotate around the preset direction x, so that each camshaft 110 can be transmitted with the tappet 21 of the generator on a fixed structure 210, thereby enabling the grinding of the valve seats 26 of multiple generators on the two fixed structures 210, so as to achieve the purpose of batch grinding of the valve seats 26 of the engine 20 and improve the production efficiency of the engine 20.

[0058] Specifically, in other embodiments, the transmission assembly 100 includes three camshafts 110 , and any two camshafts 110 mesh with each other to form a triangular meshing structure. There are three fixing structures 210 , and each fixing structure 210 is arranged near one camshaft 110 .

[0059] Specifically, in other embodiments, the transmission assembly 100 includes four camshafts 110 , and any two adjacent camshafts 110 mesh with each other to form a rectangular meshing structure. There are four fixed structures 210 , and each fixed structure 210 is arranged near a camshaft 110 .

[0060] In addition, in other embodiments, the number of camshafts 110 of the transmission assembly 100 can be five, six, seven, etc. At the same time, the number of fixed structures 210 is equal to the number of camshafts 110, and each fixed structure 210 is arranged corresponding to a camshaft 110.

[0061] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification and features of different embodiments or examples without contradiction.

[0062] Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations on the present application. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the present application.

Claims

1. An engine valve seat grinding device, characterized in that: With a preset direction, the engine valve seat grinding device comprises: A transmission assembly, the transmission assembly comprising a plurality of camshafts, the plurality of camshafts being arranged around the preset direction, each of the camshafts rotating around the preset direction, and any two adjacent camshafts being engaged for transmission; A fixing seat, wherein the fixing seat includes a plurality of fixing structures, wherein the plurality of fixing structures are arranged around the camshaft in the preset direction, and each of the fixing structures is arranged opposite to a camshaft, and each of the fixing structures has a plurality of fixing parts, wherein the plurality of fixing parts are arranged in an array along the preset direction, and each of the fixing parts is used to fix an engine, and each of the camshafts is used to transmit power to a tappet of the engine fixed on the same fixing structure.

2. The engine valve seat grinding device according to claim 1, characterized in that: The fixing seat also includes a main body structure, and multiple fixing structures are arranged on the main body structure at intervals around the preset direction. The main body structure is provided with an accommodating cavity, and at least part of each camshaft along its axial direction is passed through the accommodating cavity. Each of the fixing parts is provided with a fixing cavity, and the fixing cavity is communicated with the accommodating cavity. The tappet of the engine is at least partially passed through the fixing cavity.

3. The engine valve seat grinding device according to claim 2, characterized in that: The fixing portion is further provided with a plurality of fixing holes, and the plurality of fixing holes are spaced apart from the fixing cavity, and the plurality of fixing holes are arranged around the fixing cavity.

4. The engine valve seat grinding device according to claim 3, characterized in that: The fixing portion has a fixing surface, the fixing surface is provided with an avoidance hole, the avoidance hole is communicated with the fixing cavity, the fixing hole is provided on the fixing surface and is spaced apart from the avoidance hole.

5. The engine valve seat grinding device according to claim 4, characterized in that: In the fixing structure and the camshaft corresponding to the fixing structure, the distance between each fixing surface and the camshaft along the radial direction of the camshaft is equal.

6. The engine valve seat grinding device according to claim 1, characterized in that: The transmission assembly further includes a driving member, which is connected to any one of the camshafts and is used to drive the camshaft to rotate around the preset direction.

7. The engine valve seat grinding device according to claim 6, characterized in that: The transmission assembly also includes a first transmission member and a second transmission member. The first transmission member is connected to the driving member, and the driving member is used to drive the first transmission member to rotate around the preset direction. The second transmission member is in transmission connection with the first transmission member, and the second transmission member is fixedly connected to any one of the camshafts.

8. The engine valve seat grinding device according to claim 7, characterized in that: The first transmission member and the second transmission member are spaced apart from each other. The transmission assembly further includes a tensioning member, which is tensioned on the first transmission member and the second transmission member.

9. The engine valve seat grinding device according to claim 7, characterized in that: The second transmission member is meshed with the first transmission member for transmission.

10. The engine valve seat grinding device according to claim 1, characterized in that: The transmission assembly includes two camshafts, and the two camshafts are engaged for transmission. There are two fixing structures, and each fixing structure is arranged close to one of the camshafts.

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