Balancing piston

Abstract

The utility model provides a balance piston, and belongs to the technical field of pistons. The problem that an existing piston ring is high in replacement cost is solved. The balance piston comprises a piston body, the piston body is composed of a piston ring and a piston rod connected with the piston ring, the piston rod is connected with the piston ring through a connecting unit, and the outer side wall of the piston ring is provided with an annular groove which is sunken inwards in the axial direction and used for installing a sealing ring. The utility model has the advantage that the replacement cost is reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of pistons and relates to a balanced piston. Background Art

[0002] The clutch is installed between the engine and the gearbox, and is an assembly directly connected to the engine in the vehicle transmission system. Usually, the clutch is assembled with the engine crankshaft flywheel, and is the component that cuts off and transmits power between the engine and the vehicle transmission system. In order to increase the clutch action speed, a hydraulic drive is used to respond to the pedal stroke, thereby driving the movement of the piston. However, in actual use, the axial movement of the piston will cause wear on the ring body and the sealing ring, so that they need to be replaced after long-term use. If they are not replaced in time, the clutch may fail, thus affecting normal use. At the same time, the piston in the clutch is generally set as an integrated device, resulting in the need to replace the entire clutch, thereby increasing the replacement cost. Summary of the invention

[0003] The purpose of the utility model is to provide a balancing piston with reduced replacement cost in view of the above problems existing in the prior art.

[0004] The purpose of the utility model can be achieved through the following technical solutions: a balancing piston, including a piston body, characterized in that the piston body is composed of a piston ring and a piston rod connected to the piston ring, and the piston rod is connected to the piston ring through a connecting unit, and an annular groove axially recessed inwardly for the installation of a sealing ring is provided on the outer wall of the piston ring.

[0005] In the above-mentioned balanced piston, the piston ring is composed of an outer assembly ring portion, a spoke plate portion, and an inner assembly ring portion. The inner and outer circumferential walls of the spoke plate portion are both inclined. Both ends of the spoke plate portion are connected to the outer assembly ring portion and the inner assembly ring portion through folding edges. The above-mentioned annular groove is arranged on the outer assembly ring portion, and the inner assembly ring portion is sleeved on the piston rod and connected to it.

[0006] In the above-mentioned balanced piston, the connecting unit is composed of an annular block, several connecting columns with nuts and several locking caps. A contact ring which protrudes axially outward and contacts with the inner assembly ring is provided on the outer peripheral wall of the piston rod. The annular block is sleeved on the piston rod and slidably fits with the contact ring. The annular block, the contact ring and the inner assembly ring are all provided with assembly holes for the corresponding connecting columns to pass through and install. Several locking caps are sleeved on the corresponding connecting columns and threadedly connected thereto. A sealing gasket which is sleeved on the piston rod and is used to enhance the sealing is provided between the inner assembly ring and the contact ring. A sealing gasket which is sleeved on the piston rod and is used to enhance the sealing is also provided between the contact ring and the annular block.

[0007] Compared with the prior art, the balance piston has the following advantages:

[0008] 1. The piston body is composed of a piston ring and a piston rod connected to the piston ring, and the piston rod is connected to the piston ring through a connecting unit. The outer wall of the piston ring is provided with an annular groove which is axially recessed inward and for the installation of the sealing ring. The above structure reduces the replacement cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 It is a schematic diagram of the cross-sectional structure of the balancing piston.

[0010] In the figure, 1, piston ring; 2, piston rod; 3, outer assembly ring portion; 4, spoke plate portion; 5, inner assembly ring portion; 6, annular block; 7, connecting column; 8, locking cap; 9, abutment ring. DETAILED DESCRIPTION

[0011] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

[0012] like Figure 1As shown, the balanced piston comprises a piston body, which is composed of a piston ring 1 and a piston rod 2 connected to the piston ring 1, and the piston rod 2 is connected to the piston ring 1 through a connecting unit. An annular groove which is axially recessed inward and for installing a sealing ring is provided on the outer wall of the piston ring 1. The piston ring 1 is composed of an outer assembly ring portion 3, a spoke plate portion 4, and an inner assembly ring portion 5. The inner and outer peripheral walls of the spoke plate portion 4 are inclined, and the spoke plate portion 4 is a frustum with a hollow structure. Both ends of the spoke plate portion 4 are connected to the outer assembly ring portion 3 and the inner assembly ring portion 5 through folding edges. The folding edges of the outer assembly ring portion 3 and the spoke plate portion 4 are plane, while the folding edges of the inner assembly ring portion 5 and the spoke plate portion 4 are inclined at one end and plane at the other end. The above-mentioned annular groove is arranged on the outer assembly ring portion 3, and the inner assembly ring portion 5 is sleeved on the piston rod 2 and connected thereto. The connecting unit is composed of an annular block 6, a plurality of The piston rod 2 is composed of a connecting column 7 with a nut and a plurality of locking caps 8. A conflict ring 9 is provided on the outer peripheral wall of the piston rod 2, which protrudes axially outward and conflicts with the inner assembly ring part 5. The annular block 6 is sleeved on the piston rod 2 and slidably fits with the conflict ring 9. The annular block 6, the conflict ring 9 and the inner assembly ring part 5 are all provided with assembly holes for the corresponding connecting column 7 to pass through and install. Several locking caps 8 are sleeved on the corresponding connecting column 7 and threadedly connected with them, and the locking cap 8 is in conflict with the annular block 6 through the connecting column 7. At the same time, the annular block 6, the inner assembly ring part 5, the conflict ring 9 and the nut are in conflict through the locking cap 8. A sealing gasket sleeved on the piston rod 2 and used to enhance the sealing is provided between the inner assembly ring part 5 and the conflict ring 9. A sealing gasket sleeved on the piston rod 2 and used to enhance the sealing is also provided between the conflict ring 9 and the annular block 6, and an assembly hole is also provided on the sealing gasket.

[0013] The specific embodiments described herein are merely examples of the spirit of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described or replace them in similar ways, but they will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

[0014] Although the terms such as piston ring 1, piston rod 2, outer assembly ring portion 3, web portion 4, inner assembly ring portion 5, annular block 6, connecting column 7, locking cap 8, and abutment ring 9 are used more frequently in this article, the possibility of using other terms is not excluded. The use of these terms is only for the purpose of more conveniently describing and explaining the essence of the utility model; interpreting them as any additional restrictions is contrary to the spirit of the utility model.

Claims

1. A balancing piston, comprising a piston body, characterized in that: The piston body is composed of a piston ring (1) and a piston rod (2) connected to the piston ring (1), and the piston rod (2) is connected to the piston ring (1) through a connecting unit. The outer wall of the piston ring (1) is provided with an annular groove which is axially recessed inward and for mounting a sealing ring. The piston ring (1) is composed of an outer assembly ring portion (3), a radial plate portion (4), and an inner assembly ring portion (5). The inner and outer peripheral walls of the radial plate portion (4) are both inclined. Both ends of the radial plate portion (4) are connected to the outer assembly ring portion (3) and the inner assembly ring portion (5) through folding edges. The annular groove is provided on the outer assembly ring portion (3). The inner assembly ring portion (5) is sleeved on the piston rod (2) and connected thereto. The connecting unit is composed of an annular block (6), a plurality of connecting columns (7) with nuts. ) and a plurality of locking caps (8); a contact ring (9) protruding axially outward and contacting the inner assembly ring portion (5) is arranged on the outer peripheral wall of the piston rod (2); the annular block (6) is sleeved on the piston rod (2) and slidably fits with the contact ring (9); the annular block (6), the contact ring (9) and the inner assembly ring portion (5) are all provided with assembly holes for corresponding connecting columns (7) to pass through and install; a plurality of locking caps (8) are sleeved on the corresponding connecting columns (7) and are threadedly connected thereto; a sealing gasket sleeved on the piston rod (2) and used for enhancing the sealing is arranged between the inner assembly ring portion (5) and the contact ring (9); a sealing gasket sleeved on the piston rod (2) and used for enhancing the sealing is also arranged between the contact ring (9) and the annular block (6).

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