CN215881404U

CN215881404U - Engine piston and cylinder body assembly quality

Info

Publication number: CN215881404U
Application number: CN202122307933.3U
Authority: CN
Inventors: 杨斌; 潘钟键; 刘厚根; 刘永进; 李义; 杨晶
Original assignee: Sunward Intelligent Equipment Co Ltd
Current assignee: Sunward Intelligent Equipment Co Ltd
Priority date: 2021-09-23
Filing date: 2021-09-23
Publication date: 2022-02-22
Anticipated expiration: 2031-09-23

Abstract

The utility model discloses an engine piston and cylinder body assembling device, which comprises: a crankshaft mounting seat for mounting a crankshaft; a cylinder block mounting seat for mounting a cylinder block of an engine; supporting platform, bent axle mount pad and cylinder body mount pad are all installed in supporting platform, and wherein, the supporting platform is located to cylinder body mount pad mobilizable to change the relative position of cylinder body mount pad and bent axle mount pad. The crankshaft mounting seat is used for supporting the crankshaft, parts such as a casing and a piston mounted on the crankshaft, the cylinder body mounting seat is used for supporting a cylinder body of an engine, and the cylinder body and the piston are assembled by the aid of movement of the cylinder body mounting seat relative to the supporting platform. Compared with handheld installation, the handheld operation is avoided, the labor intensity is reduced, and the installation efficiency and reliability are improved. Compare in adopting the mode installation of hanging in midair, can avoid piston or cylinder body to take place to sway, promote the stability of cylinder body motion, ensure that cylinder body and piston location are accurate, promote the assembly precision.

Description

Engine piston and cylinder body assembly quality

Technical Field

The utility model relates to the technical field of engine assembly process equipment, in particular to an engine piston and cylinder body assembly device.

Background

At present, when a piston and a cylinder body of an aviation piston engine are assembled, a handheld assembly mode is generally adopted. For the air-cooled aviation piston engine, as most of cylinder bodies are independent and the weight of the cylinder bodies is light, the air-cooled aviation piston engine is convenient to hand-hold and install; for the water-cooled aviation piston engine, because the water-cooled aviation piston engine is provided with the internal water channel, the cylinder bodies are mostly connected in parallel, and particularly, the water-cooled aviation piston engine is a high-horsepower engine which is heavy in weight, inconvenient to hold and install, low in installation efficiency and poor in reliability.

In addition, for a water-cooled aviation piston engine, in order to solve the problem of inconvenient hand holding, a suspension mode is adopted in the prior art for mounting a piston and a cylinder body of the engine, however, the suspension mode is adopted, the piston or the cylinder body is easy to swing, the positioning is inaccurate, and the assembly precision is influenced.

Therefore, how to provide an engine piston and cylinder assembly device to facilitate the installation of the piston and the cylinder and improve the installation efficiency and the installation accuracy is a problem to be solved by those skilled in the art.

SUMMERY OF THE UTILITY MODEL

In view of the above, an object of the present invention is to provide an engine piston and cylinder assembly apparatus, which facilitates installation of an engine piston and cylinder, and is beneficial to improving installation efficiency and installation accuracy.

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

an engine piston and cylinder assembly apparatus comprising:

a crankshaft mounting seat for mounting a crankshaft;

a cylinder block mounting seat for mounting a cylinder block of an engine;

supporting platform, the bent axle mount pad with the cylinder body mount pad all install in supporting platform, wherein, the cylinder body mount pad is mobilizable to be located supporting platform, in order to change the cylinder body mount pad with the relative position of bent axle mount pad.

Preferably, the cylinder mounting seat is linearly movably arranged on the supporting platform.

Preferably, the supporting platform is provided with a linear guide rail, and the cylinder body mounting seat is connected with the linear guide rail in a sliding manner through a sliding block.

Preferably, the supporting platform is provided with a guide rail installation groove, and the linear guide rail is arranged in the guide rail installation groove.

Preferably, the cylinder block mounting seat is connected with a linear driving mechanism for outputting linear motion.

Preferably, the crankshaft mounting seat is arranged at the central position of the supporting platform.

Preferably, the supporting platform is provided with a groove, and the crankshaft mounting seat is arranged in the groove.

Preferably, the cylinder block mounting seat is provided with a locking screw for fixing the cylinder block.

Preferably, the crankshaft mounting seat includes three bolt holes for fixing the crankshaft.

Preferably, the supporting platform is a rectangular platform, and a connecting line between one of the screw pin holes and the centers of the three screw pin holes is parallel to the width direction of the supporting platform; the cylinder body mounting seat can slide along the length direction parallel to the supporting platform.

According to the assembling device for the piston and the cylinder body of the engine, the crankshaft mounting seat is used for supporting the crankshaft, a casing, the piston and other parts mounted on the crankshaft, the cylinder body mounting seat is used for supporting the cylinder body of the engine, and the cylinder body mounting seat moves relative to the supporting platform to realize the assembling of the cylinder body and the piston. Compared with hand-held installation, the utility model avoids hand-held operation, reduces labor intensity and improves installation efficiency and installation reliability. Simultaneously, compare in adopting the mode of hanging in midair to install, can avoid piston or cylinder body to take place to sway, promoted the stability of cylinder body motion, ensure that cylinder body and piston location are accurate, promote the assembly precision.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.

FIG. 1 is a schematic structural diagram of an engine piston and cylinder block assembly according to an embodiment of the present invention;

FIG. 2 is a schematic view of the crankshaft mounted to the crankshaft mounting block with the receiver and the connecting rod mounted to the crankshaft;

FIG. 3 is a schematic structural view of the engine with the cylinder block mounted to the cylinder block mount;

FIG. 4 is a schematic illustration of an engine block and piston assembly process.

The reference numerals in fig. 1 to 4 are as follows:

1 is a crankshaft mounting seat, 11 is a bolt hole, 2 is a cylinder body mounting seat, 21 is a locking screw, 3 is a supporting platform, 31 is a guide rail mounting groove, 32 is a groove, 4 is a linear guide rail, 5 is a sliding block, 6 is a casing, 7 is a piston and 8 is a cylinder body.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The core of the utility model is to provide the assembling device for the engine piston and the cylinder body, which is convenient for the installation of the engine piston and the cylinder body and is beneficial to improving the installation efficiency and the installation precision.

Referring to fig. 1-4, fig. 1 is a schematic structural diagram of an engine piston and cylinder assembly apparatus according to an embodiment of the present invention; FIG. 2 is a schematic view of the crankshaft mounted to the crankshaft mounting block with the receiver and the connecting rod mounted to the crankshaft; FIG. 3 is a schematic structural view of the engine with the cylinder block mounted to the cylinder block mount; FIG. 4 is a schematic illustration of an engine block and piston assembly process.

The utility model provides an engine piston and cylinder body assembling device which comprises a supporting platform 3, a crankshaft mounting seat 1 and a cylinder body mounting seat 2.

Specifically, the supporting platform 3 mainly plays a bearing role, and the crankshaft mounting seat 1 and the cylinder mounting seat 2 are both mounted on the supporting platform 3. The crankshaft mounting seat 1 is used for mounting a crankshaft, and it can be understood by those skilled in the art that after the crankshaft is mounted and fixed on the crankshaft mounting seat 1, parts and connecting rods in a casing 6 of the engine and the like can be sequentially and respectively mounted on the crankshaft, and then a piston 7 of the engine is mounted on the connecting rod. In addition, cylinder body mount pad 2 is used for installing the cylinder body 8 of engine, and cylinder body mount pad 2 is mobilizable to be located supporting platform 3 to through making cylinder body mount pad 2 move on supporting platform 3, change the position of cylinder body mount pad 2 on supporting platform 3, thereby change the relative position of cylinder body mount pad 2 and crankshaft mount pad 1, make cylinder body 8 and piston 7 align, so that realize the assembly of cylinder body 8 and piston 7.

That is, when the piston 7 and the cylinder block 8 of the engine are assembled using the engine piston and cylinder block assembling apparatus, the crankshaft is attached to the crankshaft mounting base 1, the parts and the connecting rod and the like in the casing 6 of the engine are attached to the crankshaft, respectively, and the piston 7 of the engine is attached to the connecting rod; the cylinder 8 of the engine is arranged on the cylinder mounting seat 2, and external force is applied to the cylinder mounting seat 2 to enable the cylinder mounting seat to move on the supporting platform 3, so that the cylinder 8 and the piston 7 are aligned and sleeved.

After the cylinder body 8 and the piston 7 are sleeved, the connection between the cylinder body mounting seat 2 and the cylinder body 8 and the connection between the crankshaft mounting seat 1 and the crankshaft are removed, and the assembled structure is integrally taken away, so that the piston 7 and the cylinder body 8 of the next engine are assembled, and the batch assembly of the engine cylinder body 8 and the piston 7 can be realized.

Therefore, the assembling device for the piston and the cylinder body of the engine provided by the utility model has the advantages that the crankshaft mounting seat 1 is used for supporting the crankshaft, parts such as the case 6 and the piston 7 which are mounted on the crankshaft, the cylinder body mounting seat 2 is used for supporting the cylinder body 8 of the engine, and the cylinder body 8 and the piston 7 are assembled by the movement of the cylinder body mounting seat 2 relative to the supporting platform 3. Compared with hand-held installation, the utility model avoids hand-held operation, reduces labor intensity and improves installation efficiency and installation reliability. Simultaneously, compare in adopting the mode of hanging in midair to install, can avoid piston 7 or cylinder body 8 to take place to sway, promoted the stability of cylinder body 8 motion, ensure that cylinder body 8 and piston 7 location are accurate, promote the assembly precision.

In view of the simplicity of the movement of the cylinder 8, the cylinder mount 2 is mounted linearly movably to the support platform 3 on the basis of the above-described embodiment. That is, after the crankshaft mounting seat 1 and the cylinder mounting seat 2 are mounted on the supporting platform 3, they have a proper relative orientation therebetween, which ensures that the crankshaft and the cylinder 8 are respectively mounted on the crankshaft mounting seat 1 and the cylinder mounting seat 2, and the piston 7 is aligned with the cylinder 8; under the condition, after the crankshaft and the cylinder 8 are respectively and correspondingly arranged on the crankshaft mounting seat 1 and the cylinder mounting seat 2, the cylinder mounting seat 2 only needs to drive the cylinder 8 to directly perform linear movement, and the sleeving connection of the cylinder 8 and the piston 7 can be realized. It can be seen that the movement of the cylinder mounting seat 2 in this embodiment is simple, and the aligned sleeve connection of the cylinder 8 and the piston 7 is convenient to realize.

In view of the simplicity of construction while ensuring the smoothness of the movement and the correctness of the direction of movement of the cylinder block mounting seat 2, on the basis of the above-described embodiment, the support platform 3 is provided with a linear guide 4, and the cylinder block mounting seat 2 is slidably connected with the linear guide 4 through a slide block 5. That is to say, the cylinder mounting base 2 in this embodiment is provided on the linear guide 4 through the slider 5, so as to guide the cylinder mounting base 2 by using the linear guide 4, thereby ensuring the correctness and the stability of the moving direction of the cylinder mounting base 2. In this case, when the assembly of the piston 7 and the cylinder 8 has a small propelling force, the cylinder mounting seat 2 can be pushed to move linearly by directly adopting a manual propelling mode, so that the assembly of the cylinder 8 and the piston 7 is realized, and the manufacturing cost is reduced. Meanwhile, compared with transmission mechanisms such as a lead screw and the like, the linear guide rail 4 is adopted for guiding, and the linear guide rail type steering mechanism is simple in structure and convenient to move.

Further, in order to improve the assembling efficiency and reduce the labor intensity, as a preferable solution, on the basis of the above-described embodiment, the cylinder block mount 2 is connected with a linear driving mechanism for outputting a linear motion. That is, this embodiment utilizes linear drive mechanism as the power supply of cylinder body mount pad 2 to make linear drive mechanism drive cylinder body mount pad 2 and remove, thereby can save the labour, improve assembly efficiency, be favorable to assembling in batches. The linear driving mechanism can realize full-automatic propulsion by adopting a linear electric cylinder, a linear module or a hydraulic transmission mechanism and the like.

It should be noted that, in the above-described embodiment, as a preferable solution, as shown in fig. 1, the number of the linear guides 4 for mounting the single cylinder block mounting base 2 is two, and the two linear guides 4 are arranged in parallel.

In addition, in consideration of convenience in positioning the linear guide 4, it is preferable that the support platform 3 is provided with a guide installation groove 31, and the linear guide 4 is installed in the guide installation groove 31. It can be understood that, in order to ensure that the crankshaft mounting seat 1 and the cylinder mounting seat 2 have proper relative orientations after being mounted on the supporting platform 3, it is necessary to ensure the relative position accuracy between the guide rail mounting groove 31 and the crankshaft mounting seat 1 and the machining accuracy of the groove width of the guide rail mounting groove 31 itself, so as to ensure that the cylinder mounting seat 2 has proper relative orientations after being mounted on the linear guide rail 4, so as to meet the assembly accuracy requirement of the cylinder 8 and the piston 7, and ensure the reliability of the assembly.

In the above embodiment, the specific installation position of the crankshaft mounting base 1 on the support platform 3 and the installation manner thereof are not limited, but the crankshaft mounting base 1 is preferably installed at the center position of the support platform 3 in addition to the above embodiment. It can be understood that, when the number of the pistons 7 of the engine is plural, the plural pistons 7 are all disposed on the crankshaft, at this time, the plural cylinder mounting seats 2 are required to drive the plural cylinders 8 to move to the corresponding pistons 7 respectively, so as to realize the assembly of the cylinders 8 and the pistons 7, and therefore, in order to facilitate the layout and the arrangement of the plural cylinder mounting seats 2, the crankshaft mounting seat 1 is disposed at the central position of the supporting platform 3 in the present embodiment.

In addition, in order to ensure the consistency of the cylinder bore position of the casing 6 and the cylinder liner position of the cylinder block 8 in the height of the engine piston and cylinder block assembling device, on the basis of the above embodiment, the supporting platform 3 is provided with the groove 32, and the crankshaft mounting seat 1 is arranged in the groove 32. As shown in fig. 1, the crankshaft mounting seat 1 is disposed in the groove 32, and the cylinder mounting seat 2 is mounted on the surface of the supporting platform 3, so as to ensure consistency between the position of the cylinder bore of the casing 6 and the position of the cylinder liner of the cylinder block 8, so as to facilitate assembly of the cylinder block 8 and the piston 7. It can be understood that, by providing the groove 32 on the supporting platform 3, the consistency between the position of the cylinder sleeve hole of the casing 6 and the position of the cylinder sleeve of the cylinder body 8 is ensured by utilizing the height difference between the bottom surface of the groove 32 and the surface of the supporting platform 3, and the consistency between the position of the cylinder sleeve hole of the casing 6 and the position of the cylinder sleeve of the cylinder body 8 is avoided by additionally arranging other structures or heightening pieces and the like on the supporting platform 3, so that the structure is simple and convenient to implement. It should be noted that the relative position accuracy of the bottom surface of the groove 32 and the surface of the supporting platform 3 needs to meet the requirement of assembly accuracy.

In addition, in each of the above embodiments, the installation manner of the cylinder 8 on the cylinder mounting base 2 is not particularly limited as long as the detachable installation of the cylinder 8 on the cylinder mounting base 2 can be realized, and as a preferable scheme, on the basis of the above embodiments, the cylinder mounting base 2 is provided with a locking screw 21 for fixing the cylinder 8, that is, the present embodiment fixes the cylinder 8 by the locking screw 21, so as to realize the installation of the cylinder 8 on the cylinder mounting base 2. Preferably, as shown in fig. 1, the cylinder mount 2 is provided with four locking screws 21, and the four locking screws 21 are distributed in a rectangular shape. Further preferably, the locking screw 21 is a socket head cap screw.

In addition, in each of the above embodiments, the installation manner of the crankshaft on the crankshaft installation seat 1 is not particularly limited as long as the crankshaft can be detachably installed on the crankshaft installation seat 1, and as a preferable scheme, on the basis of the above embodiments, the crankshaft installation seat 1 includes three bolt holes 11 for fixing the crankshaft. That is, during installation, the crankshaft and the crankshaft installation seat 1 are fixed through the screws penetrating through the three screw pin holes 11, and the structure is simple.

In addition, in order to ensure that the crankshaft mounting seat 1 and the cylinder mounting seat 2 have proper relative orientations after being mounted on the supporting platform 3, on the basis of the above embodiment, the supporting platform 3 is a rectangular platform, wherein a connecting line of the centers of one bolt hole 11 and three bolt holes 11 is parallel to the width direction of the supporting platform 3; the cylinder mount 2 is slidable in a direction parallel to the length of the support platform 3. It can be understood by those skilled in the art that when a connecting line between one of the three bolt holes 11 on the crankshaft mounting seat 1 and the center of the three bolt holes 11 is parallel to the width direction of the supporting platform 3, the crankshaft is mounted on the crankshaft mounting seat 1 and the casing 6 is mounted on the crankshaft, so as to ensure that the side plane of the casing 6 is parallel to the side plane of the supporting platform 3, which is beneficial to making the piston 7 face the length direction of the supporting platform 3, and at the same time, the cylinder mounting seat 2 can slide along the length direction parallel to the supporting platform 3, so as to ensure the centering of the cylinder 8 and the piston 7.

In the above embodiments, the specific number of the cylinder block mounting seats 2, the installation positions thereof, and the like are not limited, and the cylinder block mounting seats 2 may be installed according to actual requirements.

In addition, in each of the above embodiments, in order to facilitate the insertion of the piston 7 into the cylinder 8, the present invention further includes a hoop for tightly embracing the piston 7, and before the cylinder 8 is sleeved with the piston 7, the hoop is used to tightly embrace the piston 7 so as to facilitate the insertion of the piston 7 into the cylinder 8; it can be understood that in the process of pushing the cylinder body mounting seat 2, the cylinder body 8 is continuously sleeved in the piston 7, meanwhile, the hoop is withdrawn, when the piston 7 is sleeved in the cylinder sleeve of the cylinder body 8 until the cylinder body 8 is attached to the casing 6, the fit locking stud bolt is installed, and the withdrawn hoop is taken out through the connecting rod opening.

The embodiments are described in a progressive manner in the specification, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.

The assembly device for the piston and the cylinder body of the engine provided by the utility model is described in detail above. The principles and embodiments of the present invention are explained herein using specific examples, which are presented only to assist in understanding the method and its core concepts. It should be noted that, for those skilled in the art, it is possible to make various improvements and modifications to the present invention without departing from the principle of the present invention, and those improvements and modifications also fall within the scope of the claims of the present invention.

Claims

1. An engine piston and cylinder assembly device, comprising:

a crankshaft mounting base (1) for mounting a crankshaft;

a cylinder block mounting base (2) for mounting a cylinder block (8) of an engine;

supporting platform (3), crankshaft mounting seat (1) with cylinder body mount pad (2) all install in supporting platform (3), wherein, cylinder body mount pad (2) mobilizable locate supporting platform (3), in order to change cylinder body mount pad (2) with the relative position of crankshaft mounting seat (1).

2. An engine piston and cylinder assembly device according to claim 1, characterized in that the cylinder mounting base (2) is linearly movably provided to the support platform (3).

3. The engine piston and cylinder assembly device according to claim 2, characterized in that the support platform (3) is provided with a linear guide rail (4), and the cylinder mounting base (2) is slidably connected with the linear guide rail (4) through a sliding block (5).

4. An engine piston and cylinder assembly device according to claim 3, characterized in that the support platform (3) is provided with a rail mounting groove (31), and the linear guide (4) is provided in the rail mounting groove (31).

5. An engine piston and cylinder assembly device according to claim 2, characterized in that a linear drive mechanism for outputting linear motion is connected to the cylinder mount (2).

6. An engine piston and cylinder assembly device according to claim 1, characterized in that the crankshaft mounting seat (1) is provided at a central position of the support platform (3).

7. An engine piston and cylinder assembly device according to claim 1, characterized in that the support platform (3) is provided with a groove (32), and the crankshaft mounting seat (1) is provided in the groove (32).

8. An engine piston and cylinder assembly device according to any one of claims 1-7, characterized in that the cylinder mount (2) is provided with a locking screw (21) for fixing the cylinder (8).

9. An engine piston and cylinder assembly device according to any one of claims 1-7, characterized in that the crankshaft mounting seat (1) comprises three bolt holes (11) for fixing the crankshaft.

10. The engine piston and cylinder block assembling apparatus according to claim 9, wherein the supporting platform (3) is a rectangular parallelepiped-shaped platform, and a line connecting one of the bolt holes (11) and the centers of three of the bolt holes (11) is parallel to a width direction of the supporting platform (3); the cylinder body mounting seat (2) can slide along the length direction parallel to the supporting platform (3).