Auxiliary tool for measuring roughness of mounting surface of gasket of cylinder sleeve of engine

Abstract

The utility model provides an engine cylinder sleeve gasket mounting surface roughness measurement auxiliary tool, which comprises a substrate and an insertion positioning part, the substrate is vertically arranged along the left-right direction and used for being positioned in front of the end surface of the front end of an engine cylinder sleeve and abutting against the end surface of the front end of the engine cylinder sleeve, and the insertion positioning part is arranged along the front-back direction and used for being positioned in front of the end surface of the front end of the engine cylinder sleeve. The front side face of the insertion positioning part is vertically arranged in the left-right direction, the insertion positioning part is located behind the base plate and connected with the base plate, and the insertion positioning part is used for being inserted into an inner hole of an engine cylinder sleeve in the front-back direction and attached to the hole wall of the inner hole so as to be limited in the inner hole. The measuring through groove is in a long strip shape and extends in the radial direction of a circle which is vertically arranged and arranged in the left-right direction, the circle center of the circle is used for being located on the axis of the inner hole, and the end, away from the circle center of the circle, of the measuring through groove is used for protruding out of the inner hole outwards. The auxiliary device can assist the roughness measuring instrument in measuring the roughness of the mounting surface of the cylinder sleeve gasket, and is simple and convenient to operate.

Description

TECHNICAL FIELD

[0001] The utility model relates to roughness measurement technical field, especially roughness measurement technical field of engine cylinder liner gasket mounting surface, specifically a kind of roughness measurement auxiliary tool of engine cylinder liner gasket mounting surface. BACKGROUND

[0002] Engine cylinder liner is important component in engine, and its main functions include forming cylinder working space with cylinder head and piston, bearing piston side thrust, heat transfer and realizing valve train. The main types of engine cylinder liner include dry cylinder liner and wet cylinder liner.

[0003] The mounting surface of cylinder liner gasket installed on engine cylinder liner requires high flatness, so roughness measurement is needed. However, the mounting surface of cylinder liner gasket installed on many engine cylinder liners, such as W46 engine cylinder liner of Vauxhall, is difficult to be measured by roughness meter. For example, the end surface of the front end of the engine cylinder liner is provided with a shallow annular groove, and the bottom of the annular groove is the mounting surface of cylinder liner gasket, which is a vertical and horizontal annular plane. The roughness meter body is a cuboid, which is straight and difficult to be placed for roughness measurement.

[0004] Therefore, it is desirable to provide a roughness measurement auxiliary tool for the mounting surface of engine cylinder liner gasket, which can assist roughness meter in roughness measurement of the mounting surface of cylinder liner gasket and is easy to operate. SUMMARY

[0005] To overcome the above-mentioned shortcomings of the prior art, one object of the utility model is to provide a roughness measurement auxiliary tool for the mounting surface of engine cylinder liner gasket, which can assist roughness meter in roughness measurement of the mounting surface of cylinder liner gasket and is easy to operate, suitable for large-scale popularization and application.

[0006] Another object of the utility model is to provide a roughness measurement auxiliary tool for the mounting surface of engine cylinder liner gasket, which is ingenious in design, simple in structure, easy to manufacture, low in manufacturing cost, suitable for large-scale popularization and application.

[0007] To achieve the above objects, the utility model provides a roughness measurement auxiliary tool for the mounting surface of engine cylinder liner gasket, which comprises a base plate and a plug-in positioning part, wherein:

[0008] The substrate is vertically arranged and arranged along the left-right direction, and is used for being located in front of the end face of the front end of the engine cylinder sleeve arranged along the front-rear direction and abutting against the end face of the front end; the plug positioning part is arranged along the front-rear direction, and the front side of the plug positioning part is vertically arranged and arranged along the left-right direction, and is located behind the substrate and connected with the substrate; the plug positioning part is used for being plugged into the inner hole of the engine cylinder sleeve along the front-rear direction and being fitted with the hole wall of the inner hole to be positioned in the inner hole; the substrate is provided with a measurement through slot along the front-rear direction, the measurement through slot is long strip-shaped and is arranged along one vertical direction and along the radial direction of the circle, and the center of the circle is used for being located on the axis of the inner hole; and the end of the measurement through slot away from the center of the circle is used for protruding outward from the inner hole.

[0009] Preferably, the number of the measurement through slots is multiple, and the multiple measurement through slots are arranged at intervals around the center of the circle.

[0010] More preferably, the number of the measurement through slots is three, and the included angle between the three measurement through slots is 120°.

[0011] More preferably, the ends of the multiple measurement through slots close to the center of the circle are connected together.

[0012] Preferably, the substrate is a circular plate, and the center of the circular plate coincides with the center of the circle.

[0013] Preferably, the plug positioning part is a cylindrical plug positioning part, and the diameter of the cylindrical plug positioning part is used for being the same as the diameter of the inner hole.

[0014] Preferably, the end of the measurement through slot away from the center of the circle is an opening.

[0015] Preferably, the engine cylinder sleeve gasket mounting surface roughness measuring auxiliary tool further comprises a plurality of gripping holes arranged along the front-rear direction and penetrating the substrate and the plug positioning part along the front-rear direction, and the plurality of gripping holes are arranged at intervals.

[0016] More preferably, the number of the gripping holes is three.

[0017] More preferably, the gripping hole is a fan-shaped hole.

[0018] The beneficial effects of the utility model mainly lie in:

[0019] 1. The engine cylinder liner gasket mounting surface roughness measurement auxiliary tool comprises a base plate and an inserted positioning part, the base plate is vertically arranged and arranged along the left-right direction, the base plate is used for being located in front of the end face of the front end of the engine cylinder liner arranged along the front-rear direction and abutting against the end face of the front end, the inserted positioning part is arranged along the front-rear direction, the front side of the inserted positioning part is vertically arranged and arranged along the left-right direction, the front side of the inserted positioning part is located behind the base plate and is connected with the base plate, the inserted positioning part is used for being inserted in the inner hole of the engine cylinder liner along the front-rear direction and being fitted with the hole wall of the inner hole to be limited in the inner hole, the base plate is provided with a measurement through slot along the front-rear direction, the measurement through slot is long strip-shaped and is arranged along a vertical direction and is arranged along the radial direction of a circle, the center of the circle is used for being located on the axis of the inner hole, and the end of the measurement through slot away from the center of the circle is used for protruding outward from the inner hole, therefore, the engine cylinder liner gasket mounting surface roughness measurement auxiliary tool can assist the roughness meter in roughness measurement of the gasket mounting surface of the cylinder liner, the operation is simple, and the engine cylinder liner gasket mounting surface roughness measurement auxiliary tool is suitable for large-scale popularization and application.

[0020] 2. The engine cylinder liner gasket mounting surface roughness measurement auxiliary tool comprises a base plate and an inserted positioning part, the base plate is vertically arranged and arranged along the left-right direction, the base plate is used for being located in front of the end face of the front end of the engine cylinder liner arranged along the front-rear direction and abutting against the end face of the front end, the inserted positioning part is arranged along the front-rear direction, the front side of the inserted positioning part is vertically arranged and arranged along the left-right direction, the front side of the inserted positioning part is located behind the base plate and is connected with the base plate, the inserted positioning part is used for being inserted in the inner hole of the engine cylinder liner along the front-rear direction and being fitted with the hole wall of the inner hole to be limited in the inner hole, the base plate is provided with a measurement through slot along the front-rear direction, the measurement through slot is long strip-shaped and is arranged along a vertical direction and is arranged along the radial direction of a circle, the center of the circle is used for being located on the axis of the inner hole, and the end of the measurement through slot away from the center of the circle is used for protruding outward from the inner hole, therefore, the engine cylinder liner gasket mounting surface roughness measurement auxiliary tool is ingenious in design, simple in structure, simple in manufacturing, low in manufacturing cost, and suitable for large-scale popularization and application.

[0021] These and other objects, features, and advantages of the present utility model will become apparent by the following detailed description and accompanying drawings. The specific means, devices, and combinations thereof, as well as the details of the present utility model, are pointed out in the content of the present utility model. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 It is a front view schematic diagram of a specific embodiment of the engine cylinder liner gasket mounting surface roughness measurement auxiliary tool.

[0023] Figure 2 It is Figure 1 It is a rear view schematic diagram of the specific embodiment.

[0024] Figure 3 It is Figure 1 It is a top view schematic diagram of the specific embodiment.

[0025] (Symbol Description)

[0026] 1 base plate; 2 insertion positioning part; 3 measurement through slot; 4 gripping hole. DETAILED DESCRIPTION

[0027] In order to enable the technical content of the utility model to be more clearly understood, the following embodiments are used for detailed description.

[0028] In the description of the utility model, it needs to be understood that the orientation or position relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer" and the like is the orientation or position relationship shown based on the drawings, and is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the utility model.

[0029] Please refer to Figures 1 to 3 Fig. 1, in a specific embodiment of the utility model, the engine cylinder liner gasket mounting surface roughness measuring auxiliary tool of the utility model includes a base plate 1 and an insertion positioning part 2, wherein:

[0030] The base plate 1 is vertically arranged and arranged along the left-right direction, the base plate 1 is used to be located in front of the end face of the front end of the engine cylinder liner arranged along the front-rear direction and abuts against the end face of the front end, the insertion positioning part 2 is arranged along the front-rear direction, the front side of the insertion positioning part 2 is vertically arranged and arranged along the left-right direction, and the front side of the insertion positioning part 2 is located behind the base plate 1 and connected to the base plate 1, the insertion positioning part 2 is used to be inserted into the inner hole of the engine cylinder liner along the front-rear direction and fitted with the hole wall of the inner hole to be limited in the inner hole, the base plate 1 is provided with a measurement through slot 3 along the front-rear direction, the measurement through slot 3 is a long strip and is arranged along a vertical direction and arranged along the radial direction of a circle, the center of the circle is used to be located on the axis of the inner hole, and the end of the measurement through slot 3 away from the center of the circle is used to protrude outward from the inner hole.

[0031] The number of measurement through slots 3 can be determined as required, preferably, the number of measurement through slots 3 is multiple, and multiple measurement through slots 3 are arranged at intervals around the center of the circle. The above "multiple" refers to more than 2, please refer to Figures 1 to 2 Fig. 1, in a specific embodiment of the utility model, the number of measurement through slots 3 is 3, and the included angle between the three measurement through slots 3 is 120°.

[0032] The end of the multiple measurement through slots 3 close to the center of the circle can be connected together or not, please refer toFigure 1 As shown in the utility model, in a specific embodiment of the utility model, the end of the plurality of measurement grooves 3 close to the center of the circle is connected together.

[0033] The substrate 1 can have any suitable shape, please refer to Figures 1 to 2 As shown in the utility model, in a specific embodiment of the utility model, the substrate 1 is a circular plate, and the center of the circular plate coincides with the center of the circle.

[0034] The plug positioning part 2 can have any suitable shape, please refer to Figures 1 to 3 As shown in the utility model, in a specific embodiment of the utility model, the plug positioning part 2 is a cylindrical plug positioning part, and the diameter of the cylindrical plug positioning part is the same as the diameter of the inner hole.

[0035] The end of the measurement groove 3 away from the center of the circle can be a closed end or an open end, please refer to Figures 1 to 2 As shown in the utility model, in a specific embodiment of the utility model, the end of the measurement groove 3 away from the center of the circle is open.

[0036] The engine cylinder liner gasket mounting surface roughness measurement auxiliary tool can also include any other suitable components, please refer to Figures 1 to 2 As shown in the utility model, in a specific embodiment of the utility model, the engine cylinder liner gasket mounting surface roughness measurement auxiliary tool further includes a plurality of gripping holes 4, the plurality of gripping holes 4 are arranged along the front-rear direction and pass through the substrate 1 and the plug positioning part 2 along the front-rear direction, the number of the plurality of gripping holes 4 is multiple, and the plurality of gripping holes 4 are arranged at intervals. By gripping the substrate 1 in the gripping hole 4 with the hand, the utility model is convenient to move.

[0037] The number of the gripping holes 4 can be determined as required, please refer to Figures 1 to 2 As shown in the utility model, in a specific embodiment of the utility model, the number of the gripping holes 4 is three. In the case that the number of the measurement grooves 3 is three, the three gripping holes 4 and the three measurement grooves 3 are arranged alternately around the center of the circle.

[0038] The gripping hole 4 can have any suitable shape, please refer to Figures 1 to 2 As shown in the utility model, in a specific embodiment of the utility model, the gripping hole 4 is a fan-shaped hole. That is, the cross section of the gripping hole 4 is fan-shaped.

[0039] In use, taking the engine cylinder liner is arranged in the front-rear direction as an example, the utility model is placed in front of the engine cylinder liner, so that the inserted positioning part 2 is aligned with the inner hole of the engine cylinder liner, the utility model is moved backward, so that the inserted positioning part 2 is inserted into the inner hole of the engine cylinder liner, until the base plate 1 abuts against the end face of the front end of the engine cylinder liner, since the end part of the measurement through groove 3 away from the center of the circle protrudes outward from the inner hole, the cylinder gasket mounting surface of the engine cylinder liner is exposed through the end part of the measurement through groove 3 away from the center of the circle, the roughness instrument body is arranged in the measurement through groove 3 along the radial direction of the circle and abuts against the front side face of the inserted positioning part 2 exposed through the measurement through groove 3, and the head part of the roughness instrument is arranged on the cylinder gasket mounting surface, so that the roughness of the cylinder gasket mounting surface can be measured.

[0040] In the case that the number of the measurement through grooves 3 is 3 and the included angle between the three measurement through grooves 3 is 120°, the utility model does not need to be rotated, and the roughness instrument only needs to be moved, so that the 0°, 120° and 240° positions of the cylinder gasket mounting surface can be easily measured.

[0041] Therefore, by adopting the utility model, the inserted positioning part is inserted in the inner hole of the engine cylinder liner along the front-rear direction and is attached to the hole wall of the inner hole to limit in the inner hole, the roughness instrument body is arranged in the measurement through groove, and the head part of the roughness instrument is arranged on the cylinder gasket mounting surface, so that the roughness of the cylinder gasket mounting surface can be measured, the operation is simple, and the problem that the roughness instrument body is difficult to be placed to measure the roughness of the cylinder gasket mounting surface mentioned in the background art is solved.

[0042] In summary, the engine cylinder liner gasket mounting surface roughness measurement auxiliary tool can assist the roughness instrument to measure the roughness of the cylinder gasket mounting surface, the operation is simple, the design is ingenious, the structure is simple, the manufacturing is simple, the manufacturing cost is low, and the tool is suitable for large-scale popularization and application.

[0043] Therefore, the purpose of the utility model has been completely and effectively realized. The function and structural principle of the utility model have been displayed and described in the embodiments, and the implementation manner can be modified arbitrarily without departing from the principle. Therefore, the utility model includes all modified implementation manners based on the spirit and scope of the claims.

Claims

1. An engine cylinder liner gasket mounting surface roughness measurement aid tool characterized by, The engine cylinder liner gasket installation surface roughness measuring auxiliary tool comprises a substrate and an inserted positioning part, wherein: the substrate is vertically arranged and arranged along the left-right direction, and is used for being located in front of the end face of the front end of the engine cylinder liner arranged along the front-rear direction and abutting against the end face of the front end; the inserted positioning part is arranged along the front-rear direction, and the front side of the inserted positioning part is vertically arranged and arranged along the left-right direction, is located behind the substrate and is connected with the substrate, and is used for being inserted into the inner hole of the engine cylinder liner along the front-rear direction and being fitted with the hole wall of the inner hole to be positioned in the inner hole; the substrate is provided with a measuring through slot along the front-rear direction, the measuring through slot is long-strip-shaped and is arranged along one vertical direction and along the radial direction of a circle, the center of the circle is used for being located on the axis of the inner hole, and the end of the measuring through slot away from the center of the circle is used for protruding outward from the inner hole.

2. The engine cylinder liner gasket mating surface roughness measuring aid of claim 1 wherein, The number of the measuring through slots is multiple, and the multiple measuring through slots are arranged at intervals around the center of the circle.

3. The engine cylinder liner gasket mating surface roughness measuring aid of claim 2 wherein, The number of the measuring through slots is three, and the included angle between the three measuring through slots is 120°.

4. The engine cylinder liner gasket mating surface roughness measuring aid of claim 2 wherein, The ends of the multiple measuring through slots close to the center of the circle are connected together.

5. The engine cylinder liner gasket mating surface roughness measuring aid of claim 1 wherein, The substrate is a circular plate, and the center of the circular plate coincides with the center of the circle.

6. The engine cylinder liner gasket mating surface roughness measuring aid of claim 1 wherein, The inserted positioning part is a cylindrical inserted part, and the diameter of the cylindrical inserted part is used for being the same as the diameter of the inner hole.

7. The engine cylinder liner gasket mating surface roughness measuring aid of claim 1 wherein, The end of the measuring through slot away from the center of the circle is an opening.

8. The engine cylinder liner gasket mating surface roughness measuring aid of claim 1 wherein, The engine cylinder liner gasket installation surface roughness measuring auxiliary tool further comprises a gripping hole, the gripping hole is arranged along the front-rear direction and penetrates the substrate and the inserted positioning part along the front-rear direction, the number of the gripping holes is multiple, and the multiple gripping holes are arranged at intervals.

9. The engine cylinder liner gasket mating surface roughness measuring aid of claim 8 wherein, The number of the gripping holes is three.

10. The engine cylinder liner gasket mating surface roughness measuring aid tool of claim 8 wherein, The gripping hole is a fan-shaped hole.

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