CN212106059U - Horizontal opposed engine cylinder body - Google Patents

Abstract

The utility model discloses a horizontal opposed engine cylinder body, the hydraulic cylinder comprises a cylinder body, set up the piston installation cavity that a plurality of arranged side by side and be used for installing the piston in the cylinder body, every the piston installation cavity includes piston guide way and two symmetrical arrangement at the cylinder cavity body of piston guide way left and right sides, just be equipped with the groove of stepping down that runs through the piston guide way to the position of piston guide way on the cylinder body. The utility model discloses can provide the condition for the inside cooling of piston, improve the efficiency of engine, reduce the loss, can prevent to produce the influence of vapor to parts such as connecting rod, bent axle, increase of service life behind the fuel combustion.

Description

Horizontal opposed engine cylinder body

Technical Field

The utility model relates to the technical field of engines, concretely relates to horizontal opposed engine cylinder body.

Background

Most of traditional engines are powered by a crankshaft driven by a piston to rotate, and the engine has a parameter of a compression ratio which is higher than the performance of the engine, but the high compression ratio can bring about the problem of knocking, so that the piston needs to be cooled. However, due to the influence of the structure of the engine, the existing cooling mode is generally to add a nozzle on the cylinder body, cool the piston from the outside, hardly realize cooling from the inside of the piston, and the cooling efficiency is low. In addition, the traditional piston rod swings in the moving process, although the piston head and the cylinder are sealed, in consideration of thermal expansion and cold contraction, a small gap exists between the piston head and the cylinder in an actual assembly mode, and the piston ring cannot achieve hundreds of percent of sealing, so that for the traditional engine, water vapor generated in the combustion process of the traditional engine enters a crankcase, and further influences engine oil and other parts. Only part of high-temperature waste gas generated in the working process of the engine is used for heating a water supply tank in winter, and the rest part of high-temperature waste gas is directly discharged, so that resource waste is caused.

In order to solve the above problems, a new engine cylinder is needed to accommodate a piston capable of performing reciprocating linear motion, and to facilitate cooling of the piston, improve the efficiency of the engine, and reduce the loss.

Disclosure of Invention

The technique that exists is not enough to the aforesaid, the utility model aims at providing a horizontal opposed formula engine cylinder body can provide the condition for the inside cooling of piston, improves the efficiency of engine, reduces the loss, can prevent to produce the influence of vapor to parts such as connecting rod, bent axle, increase of service life behind the fuel combustion.

In order to solve the technical problem, the utility model adopts the following technical scheme:

the utility model provides a horizontal opposed engine cylinder body, including the cylinder body, set up a plurality of piston installation cavity that are used for installing the piston that arrange side by side in the cylinder body, every the piston installation cavity includes piston guide way and two symmetrical arrangement at the cylinder cavity of piston guide way left and right sides, just be equipped with the groove of stepping down that runs through the piston guide way on the cylinder body to the position of piston guide way, the main shaft mounting hole that is used for installing the bent axle main shaft has been made to both sides around every groove of stepping down on the upper and lower terminal surface of cylinder body; and one end of the cylinder body is provided with a mounting groove for mounting an output gear which is simultaneously meshed with the end transmission gears of the two crankshafts.

Preferably, one of the two cylinder chambers in the piston mounting cavity is a combustion chamber and the other is a steam chamber.

Preferably, the two ends of the cylinder body are provided with cooling water channels which are positioned on the periphery of the side wall of each cylinder cavity.

Preferably, a lubricating oil channel for lubricating the piston and the transmission mechanism is arranged on the front side wall and the rear side wall of each abdicating groove on the cylinder body.

Preferably, one end of the cylinder body is provided with a supporting seat for installing a flywheel and simultaneously supporting the transmission gear and the output gear.

Preferably, one end of the cylinder cavity, which is close to the piston guide groove, is provided with an oil seal which is tightly matched with the outer diameter of the piston rod.

Preferably, the upper end and the lower end of the cylinder body are correspondingly provided with an upper housing and a lower housing, and the lower end surface of the upper housing and the upper end surface of the lower housing are respectively provided with a docking abdicating cavity and a docking mounting hole which are respectively matched with the abdicating groove and the spindle mounting hole.

Preferably, the spindle mounting hole and the butt joint mounting hole are both semicircular holes, and the spindle mounting hole is in butt joint with the butt joint mounting hole to form a spindle round hole.

Preferably, the upper housing and the lower housing are both provided with thrust plates for axially limiting the crankshaft.

Preferably, the receding groove is a rectangular through groove.

The beneficial effects of the utility model reside in that:

1. the cylinder body of the utility model can be suitable for the installation of the horizontally opposed piston with piston guide in the middle and piston rods and piston heads on both sides, ensures that the piston can do reciprocating linear motion in the cylinder body, provides conditions for cooling the piston from the inside, and has simple structure and easy processing;

2. the structure of the cylinder body of the utility model is beneficial to the installation of the crankshaft, compared with the prior crankshaft which is installed along the direction parallel to the motion direction of the piston, the connecting rod and the crankshaft of the utility model are installed from the upper and lower sides of the cylinder body and the direction perpendicular to the motion direction of the piston, and the operation is more convenient;

3. the cylinder cavities on the two sides of the cylinder body of the utility model can form combustion chambers, which is beneficial to improving the efficiency of the whole machine; meanwhile, only one side of the cylinder cavities on the two sides can be used as a combustion chamber, the other side of the cylinder cavities can be used as a steam chamber, and steam generated by fuel oil in the combustion chamber is collected and used for the steam chamber to do work, so that fuel oil loss is reduced, and cost is reduced;

4. the cooling water channel of the utility model can cool the cylinder body, reduce the temperature around the cylinder cavity and ensure the piston to move in a low temperature environment; the arrangement of the lubricating oil channel can ensure that the piston is in an easily lubricated environment; the two are matched, so that the mechanical efficiency can be improved;

5. the supporting seat arranged on the cylinder body of the utility model can support the transmission gear and the output gear, thereby improving the uniformity of the stress of the gear;

6. the utility model discloses the oil blanket that closely cooperates with the piston rod external diameter is installed to the one end that is close to the piston guide way in the cylinder chamber, and the oil blanket has realized the complete separation of combustion chamber and crankcase as seal structure, can prevent to produce in the vapor gets into the piston guide way by the cylinder chamber after the fuel combustion, prevents the influence of vapor to parts such as connecting rod, bent axle, increase of service life.

Drawings

FIG. 1 is a perspective view of the cylinder body of the present invention;

FIG. 2 is a front view of the cylinder body of the present invention;

fig. 3 is a top view of the cylinder body of the present invention;

FIG. 4 is a cross-sectional view A-A of FIG. 3;

FIG. 5 is a cross-sectional view taken along line B-B of FIG. 3;

FIG. 6 is a cross-sectional view of C-C of FIG. 3;

fig. 7 is a bottom view of the cylinder body of the present invention;

fig. 8 is a left side view of the cylinder body of the present invention;

fig. 9 is a right side view of the cylinder body of the present invention;

fig. 10 is a schematic view of the installation of the present invention;

FIG. 11 is another perspective view of FIG. 10 with the upper housing removed;

fig. 12 is a cross-sectional view of the cylinder body of the present invention after the piston, the connecting rod and the crankshaft are installed;

FIG. 13 is a schematic view of a piston and connecting rod adapted according to the present invention;

fig. 14 is an exploded view of the piston of the present invention;

FIG. 15 is a cross-sectional view taken along line A-A of FIG. 10;

fig. 16 is an enlarged schematic view at a in fig. 15.

In the figure: 1. the cylinder body, 2, the piston installation cavity, 2-1, the piston guide groove, 2-2, the cylinder cavity, 3, the cooling water channel, 4, the abdicating groove, 5, the main shaft installation hole, 6, the installation groove, 7, the first fixing hole, 8, the exhaust channel, 9, the second oil outlet, 10, the cooling channel, 11, the first oil inlet, 12, the second fixing hole, 13, the lubricating oil channel, 131, the V-shaped oil channel, 132, the vertical oil channel, 133, the horizontal oil channel, 14, the water inlet, 15, the third fixing hole, 16, the first oil outlet, 17, the second oil inlet, 18, the water outlet, 19, the hanger, 20, the upper cover, 201, the thrust plate, 21, the left cylinder cover, 22, the flywheel, 23, the support seat, 24, the left cylinder cover, 25, the lower cover, 26, the crankshaft, 27, the connecting rod, 28, the oil seal, 29, the piston, 291, the piston guide, 2911, the through groove, 2912, and the, 292. piston rod, 2921, mounting groove, 293, piston head, 294, fixed pin.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

As shown in fig. 1 to 12, the utility model provides a horizontal opposed engine cylinder, which comprises a cylinder body 1, a plurality of piston installation cavities 2 arranged side by side for installing pistons 29 are arranged in the cylinder body 1, each piston installation cavity 2 comprises a piston guide groove 2-1 matched with the piston guide and used for the piston to move linearly and two cylinder cavities 2-2 symmetrically arranged at the left and right sides of the piston guide groove 2-1 and in sealing contact with the piston head, a abdicating groove 4 for matching the connecting rod 27 to move up and down and satisfying the circular motion of the crank throws 261 of two crankshafts 26 symmetrically arranged at the upper and lower sides of the cylinder body 1 around the main axis of each crank throw is arranged at the position on the cylinder body 1 just facing the piston guide groove 2-1, the abdicating groove 4 is mainly used for providing a running space for the crank throws 261 of the connecting rod 27 and the crankshaft 26, the connecting rod 27 and the crankshaft 26 can be ensured to operate normally; main shaft mounting holes 5 for mounting main shafts of the crankshafts 26 are formed in the front side and the rear side of each abdicating groove 4 in the upper end surface and the lower end surface of the cylinder body 1; one end of the cylinder body 1 is provided with a mounting groove 6 for mounting an output gear which is simultaneously meshed with the transmission gears at the end parts of the two crankshafts 26. Wherein, two cylinder cavities 2-2 can be combustion chambers, which is beneficial to improving the efficiency of the whole machine. Of course, only one side of the two cylinder cavities 2-2 can be used as a combustion chamber, the other side can be used as a steam chamber, and steam generated by fuel oil in the combustion chamber is collected and used for the steam chamber to do work, so that fuel oil loss is reduced, and cost is reduced.

As shown in fig. 13 and 14, the piston 29 is a horizontally opposed piston, and includes a piston guide 291 located in the middle, a piston rod 292 and a piston head 293 symmetrically disposed at both ends of the piston guide 291, the piston guide 291 is detachably connected to the piston rod 292, the piston head 293 is fixedly connected to the piston rod 292, the piston head 293 serves as a sealing end matching with the cylinder cavity 2-2, the piston guide 291 serves as a guiding end matching with the cylinder body 1, a through groove 2911 for a connecting rod 27 to pass through is formed in the piston guide 291, a plurality of oil grooves 2912 are symmetrically formed at both sides of the piston guide 291, and one end of the piston rod 292, which is far away from the piston head 293, extends into the piston guide 291 and is connected and fixed to the piston guide 291 through a fixing pin 2914. The piston rod 292 has a sliding end slidably connected to the connecting rod 27, the sliding end is a mounting groove 2921 formed at an end of the piston rod 292 near the piston guide 291, and the connecting rod 27 is slidably connected to the mounting groove 2921.

As a further improvement of the utility model, the two ends of the cylinder body 1 are both provided with cooling water channels 3, each cooling water channel 3 is positioned at the periphery of the side wall of each cylinder cavity 2-2 at the same side, as shown in fig. 1, 8 and 9, the cross-section of the cooling water passage 3 is formed by a plurality of arc-shaped communication around the side wall of each cylinder chamber 2-2, taking the cooling water channel 3 on the left end of the cylinder body 1 as an example, as shown in fig. 8, the cooling water channel 3 is arranged around the upper side walls of the four cylinder cavities 2-2 from back to front, the front side wall of the foremost cylinder cavity 2-2, and the rear side wall of the four cylinder cavities 2-2 from front to back; as shown in fig. 4 to 6, the depth of the cooling water channel 3 is smaller than the length of the cylinder cavity, and the cooling water channel 3 is mainly used for cooling the portion of the end of the cylinder body 1, which faces the cylinder cavity 2-2, so that the piston head 293 can be ensured to move in a low-temperature environment while the cylinder body 1 is cooled.

As a further improvement, the cylinder body 1 is provided with a lubricating oil channel 13 for lubricating the piston and the transmission mechanism on the side wall of each of the yielding grooves 4. Each lubricating oil passage 13 comprises a V-shaped oil passage 131, a vertical oil passage 132 intersecting the V-shaped oil passage 131, and a horizontal oil passage 133 intersecting the V-shaped oil passage 131 and the vertical oil passage 132, two ends of the vertical oil passage 132 respectively lead to the corresponding spindle mounting holes 5 on the upper and lower sides of the cylinder body 1, and two ends of the horizontal oil passage 133 respectively lead to the piston guide grooves 2-1 on two sides of the corresponding side wall. After being introduced through the V-shaped oil passage 131, the oil flows into the corresponding main shaft mounting holes 5 on the upper and lower sides of the cylinder body 1 through the vertical oil passage 132, so as to lubricate the transmission mechanism (i.e., the crankshaft and the connecting rod); and on the other hand, flows into the piston guide groove 2-1 via the horizontal oil passage 133 to lubricate the piston 29. At this time, the lubricating oil passage 13 not only can lubricate the piston 29 and the transmission mechanism, but also can introduce oil into the piston 29 through the lubricating oil passage 13 by forming a passage on the piston 29 to cool the piston 29.

Because the upper and lower both sides of cylinder body 1 are used for installing two bent axles 26, the drive gear of two bent axles 26 tip all meshes with output gear mutually, and then the transmission power, consider that the gear has length and is located the tip of bent axle, consequently its moving in-process is the state of cantilever, the root atress of gear is great like this, lead to the gear atress uneven, consequently install the supporting seat 23 that is used for installing the flywheel at the one end of cylinder body 1 to form the support to drive gear and output gear, drive gear, output gear all are connected with supporting seat 23 through the bearing rotation, and then form the support to the gear, improve the homogeneity of gear atress.

Exhaust passages 8 communicated with the corresponding cylinder cavities 2-2 are symmetrically arranged at the two sides of the abdicating groove 4 at the bottom of the cylinder body 1, and the exhaust passages 8 are arranged at one ends of the cylinder cavities 2-2 close to the piston guide grooves 2-1. When piston 29 is installed, oil seal 28 may be used to seal piston head 293 within cylinder chamber 2-2, specifically: the oil seal 28 is sleeved on the piston rod 292 and is tightly matched with the outer diameter of the piston rod 292, and the oil seal 28 is fixedly arranged in the cylinder body 1 and is positioned at the end part of the cylinder cavity 2-2 close to the piston guide groove 2-1. The oil seal 28 can prevent water vapor generated after fuel combustion from entering the piston guide groove 2-1 and the abdicating groove 4, prevent the water vapor from influencing components such as the connecting rod 27, the crankshaft 26 and the like, and prolong the service life of the piston. The clearance between the piston rod 292 and the cylinder chamber 2-2 is formed to store water vapor, and the exhaust passage 8 is provided to exhaust water vapor, and it should be noted that the exhaust passage 8 is located outside the position limit of the piston head 293, i.e. the piston head 293 does not move to the exhaust passage 8, as shown in fig. 12, and the oil seal 28 can prevent water vapor from entering the cylinder 8.

In order to realize carrying out fixed mounting to bent axle 26, can the upper end and the lower extreme of cylinder body 1 correspond and install upper cover shell 20 and lower cover shell 25, and the lower terminal surface of upper cover shell 20 and the up end of lower cover shell 25 all make respectively with the groove of stepping down 4, main shaft mounting hole 5 matched with butt joint chamber of stepping down, butt joint mounting hole. The upper cover 20 is correspondingly provided with an oil inlet channel communicated with two upper ports of the V-shaped oil channel 131 on the cylinder body 1. The upper end face and the lower end face of the cylinder body 1 are respectively provided with a second fixing hole 12 for fixing the upper cover shell 20 and the lower cover shell 25, the second fixing holes 12 are threaded holes, and bolts penetrate through the upper cover shell 20 or the lower cover shell 25 and are screwed into the corresponding second fixing holes 12 on the cylinder body 1, so that the connection between the upper cover shell 20 or the lower cover shell 25 and the cylinder body 1 is realized. The spindle mounting hole and the butt joint mounting hole can be semicircular holes, and the spindle mounting hole is in butt joint with the butt joint mounting hole to form a spindle round hole. As shown in fig. 15 and 16, in order to axially limit the crankshaft 26, thrust plates for axially limiting the crankshaft are mounted on the upper housing 20, specifically, two thrust plates 201 may be symmetrically fixed on the upper housing 20 at positions close to two adjacent crank throws 261 and at two sides of a main journal of the crankshaft, and a gap d between the thrust plates 201 and the crank throws 261 is 0.2-0.25 mm.

The receding groove 4 is a rectangular through groove, and is simple in structure and convenient to machine.

In order to improve the installation convenience of the whole cylinder body 1, a hanging bracket 19 for hanging is installed on the cylinder body 1. Specifically, four hangers 19 are symmetrically installed on the cylinder body 1 through bolts at the left side and the right side of the upper housing 20, specifically, four sets of third fixing holes 15 are formed in the cylinder body 1, each set has two, threads are arranged in the third fixing holes, and the bolts penetrate through the hangers 19 and are screwed into the third fixing holes to fix the hangers.

When the engine is used, the piston 29, the connecting rod 27 and the crankshaft 26 can be installed on the cylinder body 1 as shown in fig. 10 and 11, the upper cover shell 20, the lower cover shell 25, the left cylinder cover 24 and the right cylinder cover 21 are correspondingly installed at the upper end, the lower end, the left end and the right end of the cylinder body 1, bolts penetrate through the left cylinder cover 24 and the right cylinder cover 21 and are screwed into the first fixing holes 7 on the cylinder body 1 for fixing, the flywheel 22 is installed on the supporting seat 23, the flywheel 22 is connected with the clutch part (the connection mode of the part is the same as that of an existing engine, and excessive description is omitted here), and the piston is in sliding connection with the connecting rod, so that when the piston reciprocates, the connecting rod is driven to move, the two crankshafts are driven to rotate, the output gear and the flywheel are.

When the combustion chamber works, the cylinder cavities on the two sides of the cylinder body can form a combustion chamber, so that the efficiency of the whole machine is improved; meanwhile, only one side of the cylinder cavities on the two sides can be used as a combustion chamber, the other side of the cylinder cavities on the two sides can be used as a steam chamber, specifically, the cylinder cavity on the left side of the cylinder body is used as a steam chamber, the cylinder cavity on the right side is used as a combustion chamber, at the moment, the cooling water channel 3 at the left end of the cylinder body can be used as an air heat insulation layer, a first oil inlet 11 is formed in the upper left corner of the upper surface of the cylinder body, a first oil outlet 16 communicated with the first oil inlet 11 is formed in the left side of the cylinder body, and; correspondingly, a water inlet 14 communicated with the right-end cooling water channel 3 is formed in the upper right corner of the upper surface of the cylinder body, a water outlet 18 communicated with the right-end cooling water channel 3 is formed in the upper right corner of the lower surface of the cylinder body 1, a cooling channel 10 communicated with the cooling water channel 3 is formed in the side wall between every two adjacent cylinder cavities 2-2 in the right end of the cylinder body 1, a second oil inlet 17 is formed in the lower surface of the cylinder body 1, a second oil outlet 9 is formed in the right end of the cylinder body 1, and oil is conveyed to the right end cover through the second oil inlet 17 and the second oil outlet 9. Finally, the steam generated by the fuel oil is collected and used for acting of the steam chamber, so that the fuel oil loss is reduced, and the cost is reduced.

It will be apparent to those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims and their equivalents, the present invention is also intended to include such modifications and variations.

Claims (10)

1. A horizontally opposed engine cylinder body is characterized by comprising a cylinder body, wherein a plurality of piston mounting cavities which are arranged in parallel and used for mounting pistons are arranged in the cylinder body, each piston mounting cavity comprises a piston guide groove and two cylinder cavities which are symmetrically arranged at the left side and the right side of the piston guide groove,

a abdicating groove penetrating through the piston guide groove is formed in the position, opposite to the piston guide groove, on the cylinder body;

main shaft mounting holes are formed in the front side and the rear side of each abdicating groove in the upper end surface and the lower end surface of the cylinder body;

one end of the cylinder body is provided with a gear mounting groove.

2. A horizontally opposed engine block as set forth in claim 1, wherein one of said two cylinder chambers in said piston receiving cavity is a combustion chamber and the other is a vapor chamber.

3. A horizontally opposed engine block as set forth in claim 1, wherein said block body is provided at both ends thereof with cooling water passages at the periphery of the side wall of each cylinder chamber.

4. The opposed horizontal engine block as set forth in claim 1, wherein the block body is provided with oil passages for lubricating the piston and the transmission mechanism on the front and rear side walls of each of the relief grooves.

5. A horizontally opposed engine block as set forth in claim 1, wherein one end of said block body is provided with a support seat for mounting a flywheel while supporting the transmission gear and the output gear.

6. A horizontally opposed engine block as set forth in claim 1, wherein an end of said cylinder chamber adjacent said piston guide groove is fitted with an oil seal for close fit with the outside diameter of said piston rod.

7. A horizontally opposed engine block as set forth in claim 1, wherein the upper and lower ends of the block body are provided with an upper shell and a lower shell, respectively, and the lower end surface of the upper shell and the upper end surface of the lower shell are provided with an abutting and abdicating cavity and an abutting and mounting hole respectively fitted with the abdicating groove and the main shaft mounting hole.

8. The opposed horizontal engine block as set forth in claim 7, wherein the spindle mounting hole and the docking mounting hole are both semicircular holes, and the spindle mounting hole and the docking mounting hole are docked to form a spindle circular hole.

9. A horizontally opposed engine block as set forth in claim 7, wherein thrust plates for axially limiting the crankshaft are mounted on both said upper and lower casings.

10. A horizontally opposed engine block as set forth in claim 1, wherein said relief slots are rectangular through slots.

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