Double-end piston

Abstract

The utility model discloses a double-end piston, and relates to the technical field of pistons. The crankshaft comprises a crankshaft and further comprises connecting rods arranged at the front end of one side and the rear end of the other side of the outside of the crankshaft, a piston body is arranged at one end of each connecting rod, a first stabilizing sleeve is arranged in the middle of the outside of the crankshaft between the connecting rods, and a second stabilizing sleeve is arranged outside the outside of the crankshaft on the outer sides of the connecting rods. The stabilizing assemblies are arranged outside the crankshaft on the two sides of the connecting rod, the connecting rod is limited and stabilized from the side edge through the stabilizing balls when the connecting rod rotates outside the crankshaft relative to the crankshaft, and meanwhile the stabilizing balls roll in the ball grooves relative to the connecting rod, so that the purpose of limiting and stabilizing the connecting rod is achieved; and the outer wall of the ball groove is strengthened by the strengthening lantern ring, so that abnormal sound caused by bearing bush damage and serious influence on the service life of an engine due to non-uniform fit clearance between the connecting rod and the crankshaft caused by deflection of the connecting rod outside the crankshaft is avoided.

Description

Technical Field

[0001] This utility model belongs to the field of piston technology, and in particular relates to a double-ended piston. Background Technology

[0002] A piston is a component in an engine that reciprocates within a cylinder to convert the energy generated by combustion into mechanical energy. It is one of the core components of an engine. A double-ended piston is a mechanical component with two pistons. It is typically used in applications requiring bidirectional output, and with the development of hydraulic technology, double-ended pistons have gradually become an important component in industrial machinery.

[0003] However, during the application of dual-piston dies, when the connecting rod is connected to the outside of the crankshaft, there is a certain gap between its side and the crank arm. When the connecting rod wears down after working for a long time, it is prone to misalignment outside the crankshaft, which leads to uneven clearance between the bearing shells on its inner side and the crankshaft. This can cause bearing damage and abnormal noise, and in severe cases, the engine cannot run. There is a technical problem that the connecting rod rotating relative to the crankshaft cannot be effectively stabilized to avoid bearing wear and damage that could affect the safe operation of the engine. Utility Model Content

[0004] In view of the above-mentioned shortcomings of the existing technology, the present invention provides a double-headed piston, which can effectively solve the problems of the existing technology.

[0005] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0006] This utility model relates to a double-ended piston, comprising a crankshaft, and further comprising: a connecting rod disposed at the front end of one side of the crankshaft and the rear end of the other side of the crankshaft; a piston body disposed at one end of the connecting rod; a first stabilizing sleeve disposed at the middle position of the crankshaft outside the connecting rod; a second stabilizing sleeve disposed outside the crankshaft outside the connecting rod; ball grooves disposed on both sides of the first stabilizing sleeve and the inner side of the second stabilizing sleeve; stabilizing balls embedded inside the ball grooves; reinforcing rings disposed on the ball grooves and the outer sides of the first and second stabilizing sleeves; and a lubrication assembly disposed at one end of the piston body.

[0007] Furthermore, the second stabilizing sleeve is symmetrically arranged on the outside of the crankshaft, the ball groove is annular, the stabilizing balls are arranged at equal intervals inside the ball groove, and the stabilizing balls can roll inside the ball groove.

[0008] Furthermore, one side of the inner sidewall of the reinforcing collar is fitted with the outer side of the first stabilizing sleeve and the second stabilizing sleeve, and the other side of the inner sidewall of the reinforcing collar is fitted with the outer side of the ball groove.

[0009] Furthermore, a connecting rod cap is provided at the other end of the connecting rod outside the crankshaft, and a bearing bush is provided on the other end of the connecting rod and the inner side of the connecting rod cap, the bearing bush being semi-annular.

[0010] Furthermore, the lubrication assembly includes a lubricating oil groove, which is disposed on the outer side of the piston body near the connecting rod end, and oil inlet passages are provided at both ends of the outer side of the piston body near the connecting rod end.

[0011] Furthermore, the lubricating oil groove is annular, and the oil inlet passage is symmetrically arranged on the outside of the piston body, and the oil inlet passage is connected to the lubricating oil groove.

[0012] This utility model has the following beneficial effects:

[0013] 1. This utility model provides stabilizing components on both sides of the crankshaft outside the connecting rod. When the connecting rod rotates relative to the crankshaft outside the crankshaft, stabilizing balls limit and stabilize the connecting rod from the side. At the same time, the stabilizing balls roll relative to the connecting rod in the ball groove to achieve the purpose of limiting and stabilizing the connecting rod. The outer wall of the ball groove is reinforced by a reinforcing collar, thereby avoiding the connecting rod from becoming misaligned outside the crankshaft, which would cause uneven clearance between the two, damage the bearing, and cause abnormal noise. In severe cases, it would affect the service life of the engine.

[0014] 2. This utility model provides a lubrication component at one end of the piston body. When the piston body moves linearly in the cylinder, lubricating oil enters the lubricating oil groove through the oil inlet. The lubricating oil effectively lubricates the contact surface between the outer wall of the piston body and the inner wall of the cylinder, reducing the wear generated when the piston body moves in the cylinder, thereby avoiding a series of problems such as gas leakage caused by wear of the piston body or the inner wall of the cylinder. Attached Figure Description

[0015] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a three-dimensional schematic diagram of the present invention;

[0017] Figure 2 This is a bottom-view perspective view of the present invention;

[0018] Figure 3 This is a top view partial cross-sectional structural diagram of the crankshaft of this utility model;

[0019] Figure 4 For the present utility model Figure 1Enlarged structural diagram at point A in the middle.

[0020] The attached diagram lists the components represented by each number as follows:

[0021] 1. Crankshaft; 2. First stabilizer sleeve; 3. Piston body; 4. Oil inlet; 5. Second stabilizer sleeve; 6. Connecting rod; 7. Lubricating oil groove; 8. Connecting rod cap; 9. Reinforcing collar; 10. Stabilizing ball; 11. Bearing shell; 12. Ball groove. Detailed Implementation

[0022] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0023] Please see Figure 1-4 As shown, this utility model is a double-ended piston, including a crankshaft 1, and further including: a connecting rod 6 is provided at the front end of one side of the crankshaft 1 and the rear end of the other side; a piston body 3 is provided at one end of the connecting rod 6; a connecting rod cap 8 is provided at the other end of the connecting rod 6 outside the crankshaft 1; and a semi-annular bearing 11 is provided at the other end of the connecting rod 6 and the inner side of the connecting rod cap 8. The piston body 3 is subjected to pressure in the cylinder and performs reciprocating linear motion. This motion is transmitted to the crankshaft 1 through the connecting rod 6. The crankshaft 1 converts the reciprocating linear motion of the piston body 3 into its own circular motion and outputs torque. The bearing 11 reduces friction and wear between the connecting rod 6 and the crankshaft 1, transmits power, and maintains stable engine operation.

[0024] As a further implementation of this embodiment, such as Figure 1-4 As shown, a first stabilizing sleeve 2 is provided at the middle position outside the crankshaft 1 between the connecting rods 6, and a second stabilizing sleeve 5 is provided outside the crankshaft 1 outside the connecting rods 6. The second stabilizing sleeves 5 are symmetrically arranged outside the crankshaft 1. Annular ball grooves 12 are provided on both sides of the first stabilizing sleeve 2 and the inner side of the second stabilizing sleeve 5. Stabilizing balls 10 are embedded inside the ball grooves 12, and the stabilizing balls 10 are arranged at equal intervals inside the ball grooves 12. The stabilizing balls 10 can roll inside the ball grooves 12. The stabilizing balls 10 embedded in the ball grooves 12 can be used to seduce the flow of energy from the side. The connecting rod 6 is limited and stabilized, and when the connecting rod 6 rotates relative to the crankshaft 1, the stabilizing ball 10 rolls in the ball groove 12 to achieve the purpose of limiting and stabilizing the connecting rod 6. The ball groove 12 and the outer side of the first stabilizing sleeve 2 and the second stabilizing sleeve 5 are provided with a reinforcing collar 9. One side of the inner sidewall of the reinforcing collar 9 is in contact with the outer side of the first stabilizing sleeve 2 and the second stabilizing sleeve 5, and the other side of the inner sidewall of the reinforcing collar 9 is in contact with the outer side of the ball groove 12. The reinforcing collar 9 strengthens the outer wall of the ball groove 12 and reduces the risk of breakage of the ball groove 12.

[0025] The ball groove 12 is positioned and fitted on both sides of the connecting rod 6 outside the crankshaft 1 by the first stabilizing sleeve 2 and the second stabilizing sleeve 5, so that the two sides of the connecting rod 6 are in contact with the outside of the stabilizing balls 10 embedded in the ball groove 12. When the linear motion of the piston body 3 is transmitted to the crankshaft 1 by the connecting rod 6, the connecting rod 6 rotates relative to the crankshaft 1 outside the crankshaft 1. At the same time, the stabilizing balls 10 embedded in the ball groove 12 limit and stabilize the connecting rod 6 from the side. When the stabilizing balls 10 limit and stabilize the connecting rod 6, they roll in the ball groove 12 to avoid dry friction. The outer wall of the ball groove 12 is reinforced by the reinforcing collar 9 set between the ball groove 12 and the outside of the first stabilizing sleeve 2 and the second stabilizing sleeve 5.

[0026] As a further implementation of this embodiment, such as Figure 1 and Figure 2 As shown, a lubrication assembly is provided at one end of the outer side of the piston body 3. The lubrication assembly includes an annular lubricating oil groove 7. The lubricating oil groove 7 is located at one end of the outer side of the piston body 3 near the connecting rod 6. Oil inlet passages 4 are provided at both ends of the outer side of the piston body 3 near the connecting rod 6. The oil inlet passages 4 are symmetrically arranged on the outer side of the piston body 3 and are connected to the lubricating oil groove 7. Thus, when the piston is working, the lubricating oil can be introduced into the interior of the lubricating oil groove 7 through the oil inlet passage 4, and the lubricating oil can be used to uniformly and effectively lubricate the contact surface between the outer wall of the piston body 3 and the inner wall of the cylinder through the annular lubricating oil groove 7.

[0027] During the linear motion of the piston body 3 in the cylinder, the lubricating oil in the crankcase can enter the annular lubricating oil groove 7 at one end of the piston body 3 through the oil inlet passage 4 at both ends of the piston body 3 near the connecting rod 6. When the piston body 3 moves in a straight line, the lubricating oil in the lubricating oil groove 7 lubricates the contact surface between the outer wall of the piston body 3 and the inner wall of the cylinder evenly and continuously.

[0028] Working principle: When using a double-ended piston, the piston body 3 reciprocates linearly under pressure inside the cylinder. This motion is transmitted to the crankshaft 1 via the connecting rod 6. As the connecting rod 6 rotates relative to the crankshaft 1, the stabilizing balls 10 limit and stabilize the connecting rod 6 from the side. When the stabilizing balls 10 limit and stabilize the connecting rod 6, they roll in the ball groove 12, thus avoiding dry friction. At the same time, the outer wall of the ball groove 12 is reinforced by the reinforcing collar 9. The lubricating oil in the crankcase can enter the lubricating oil groove 7 through the oil inlet 4. When the piston body 3 moves linearly, the lubricating oil in the lubricating oil groove 7 provides uniform and continuous lubrication to the contact surface between the outer wall of the piston body 3 and the inner wall of the cylinder. The crankshaft 1 converts the reciprocating linear motion of the piston body 3 into its own circular motion and outputs torque. The bearing 11 reduces friction and wear between the connecting rod 6 and the crankshaft 1, transmits power, and maintains stable engine operation.

[0029] The above are merely preferred embodiments of the present utility model and do not limit the present utility model. Any modifications, equivalent substitutions, or improvements made to the technical solutions described in the foregoing embodiments, or to some of the technical features, shall fall within the protection scope of the present utility model.

Claims

1. A double-ended piston, comprising a crankshaft (1), characterized in that, Also includes: A connecting rod (6) is provided at the front end of one side and the rear end of the other side of the crankshaft (1). A piston body (3) is provided at one end of the connecting rod (6). A first stabilizing sleeve (2) is provided at the middle position of the crankshaft (1) between the connecting rods (6). A second stabilizing sleeve (5) is provided on the outside of the crankshaft (1) outside the connecting rod (6). Ball grooves (12) are provided on both sides of the first stabilizing sleeve (2) and the inside of the second stabilizing sleeve (5). Stabilizing balls (10) are embedded in the inside of the ball grooves (12). A reinforcing collar (9) is provided on the outside of the ball grooves (12), the first stabilizing sleeve (2), and the second stabilizing sleeve (5). A lubrication assembly is provided at one end of the piston body (3).

2. A double-ended piston according to claim 1, characterized in that, The second stabilizing sleeve (5) is symmetrically arranged outside the crankshaft (1), the ball groove (12) is annular, the stabilizing balls (10) are arranged at equal intervals inside the ball groove (12), and the stabilizing balls (10) can roll inside the ball groove (12).

3. A double-ended piston according to claim 1, characterized in that, One side of the inner sidewall of the reinforcing collar (9) is in contact with the outer side of the first stabilizing sleeve (2) and the second stabilizing sleeve (5), and the other side of the inner sidewall of the reinforcing collar (9) is in contact with the outer side of the ball groove (12).

4. A double-ended piston according to claim 1, characterized in that, A connecting rod cap (8) is provided at the other end of the connecting rod (6) outside the crankshaft (1), and a bearing shell (11) is provided at the other end of the connecting rod (6) and the inner side of the connecting rod cap (8), and the bearing shell (11) is semi-circular.

5. A double-ended piston according to claim 1, characterized in that, The lubrication assembly includes a lubricating oil groove (7), which is located on the outside of the piston body (3) near the connecting rod (6). Oil inlet passages (4) are provided at both ends of the piston body (3) near the connecting rod (6).

6. A double-ended piston according to claim 5, characterized in that, The lubricating oil groove (7) is annular, and the oil inlet channel (4) is symmetrically arranged on the outside of the piston body (3), and the oil inlet channel (4) is connected to the lubricating oil groove (7).

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