Air inlet rocker arm shaft of engine

Abstract

The utility model relates to the technical field of rocker arm shafts, in particular to an engine air inlet rocker arm shaft which comprises a shaft body, an oil through hole, a sealing cover, a fixing ring, a rotating ball, a rotating ring, a rocker arm block and an air inlet valve arm, the fixing ring is detachably connected with the shaft body and wraps the shaft body, a groove is formed in the outer surface of the fixing ring, the rotating ball is rotationally connected with the fixing ring, and the rotating ring is rotationally connected with the rotating ball. The rocker arm block is fixedly connected with the rotating ring, the inlet valve arm is fixedly connected with the rocker arm block, the sealing cover is opened, lubricating oil is added into the shaft body, the lubricating oil flows to the fixing ring through the oil through hole, and when the rocker arm block starts to rotate, the rotating ring is driven to rotate; when the engine air inlet rocker arm shaft works, the rotating ball rolls between the fixing ring and the rotating ring, meanwhile, the friction force generated when the rotating ball rotates is reduced through the lubricating oil, and therefore abrasion is reduced, and the problem that when the engine air inlet rocker arm shaft works, abrasion between the rocker arm and the rocker arm shaft is too large, and the overall service life is shortened is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of rocker shafts, in particular to an engine intake rocker shaft. Background Art

[0002] The rocker arm is part of the valve mechanism in the engine and is responsible for opening and closing the valves. The camshaft drives the rocker arm rod, which is a device that pushes the intake and exhaust valves to open in a timely manner. It cooperates with the camshaft to open the valves in a timely manner to complete the engine's intake and exhaust. However, the existing engine intake rocker arm shaft cannot ensure the sealing of the intake rocker arm and exhaust rocker arm lubricating oil when in use.

[0003] To solve the above problems, the prior art patent (CN216741656U) discloses an engine intake rocker arm shaft, in which the conical body is threadedly connected to the conical groove at the upper end of the injection cylinder. After the connection, the fixing bolt squeezes the sealing gasket at the upper end of the injection cylinder, thereby performing the first step of sealing the injection cylinder, and a sealing sleeve is provided on the outside of the fixing bolt. When the fixing bolt is fixed, the lower end of the sealing sleeve is tightly attached to the upper end of the intake rocker arm, thereby further sealing and preventing the lubricating oil from leaking.

[0004] However, in the above-mentioned prior art, when the engine intake rocker shaft is working, the wear between the rocker arm and the rocker shaft is too large, resulting in a reduction in the overall service life. Utility Model Content

[0005] The utility model aims to provide an engine intake rocker shaft, which solves the technical problem in the prior art that excessive wear between the rocker arm and the rocker shaft during operation of the engine intake rocker shaft leads to a reduction in the overall service life.

[0006] To achieve the above-mentioned purpose, the utility model adopts an engine intake rocker arm shaft, including a shaft body, an oil through hole, a sealing cover and a lubrication assembly, wherein the lubrication assembly includes a fixing ring, a rotating ball, a rotating ring, a rocker arm block, an intake valve arm and a fixing component, the oil through hole is arranged on the surface of the shaft body and passes through the shaft body, the sealing cover is detachably connected to the shaft body and is located at one end of the shaft body, the fixing ring is detachably connected to the shaft body and wraps the shaft body, and the outer surface of the fixing ring has a groove, the rotating ball is rotatably connected to the fixing ring and is located in the groove of the fixing ring, the rotating ring is rotatably connected to the rotating ball and wraps the rotating ball, and the inner wall of the rotating ring has a groove adapted to the rotating ball, the rocker arm block is fixedly connected to the rotating ring and wraps the rotating ring, and the intake valve arm is fixedly connected to the rocker arm block and is located on one side of the rocker arm block.

[0007] Wherein, the lubrication assembly also includes an intake valve pressing column and a gasket, wherein the intake valve pressing column is fixedly connected to the intake valve arm and is located on the outside of the intake valve arm, and the gasket is detachably connected to the intake valve pressing column and is located below the intake valve pressing column.

[0008] Wherein, the fixed component includes a camshaft arm, a camshaft block and a camshaft pad, the camshaft arm is fixedly connected to the rocker arm block and is located on the other side of the rocker arm block, the camshaft block is fixedly connected to the camshaft arm and is located on one side of the camshaft arm, and the camshaft pad is fixedly connected to the camshaft block and is located below the camshaft block.

[0009] Among them, the fixing component also includes a limit ring, a limit spring and a limit block, the limit ring is detachably connected to the shaft body and is located on one side of the rocker arm block, one end of the limit spring is detachably connected to the rocker arm block and is located on the other side of the rocker arm block, and the limit block is detachably connected to the spring and is located at the other end of the spring.

[0010] Among them, the engine intake rocker arm shaft also includes a mounting sleeve 1, a mounting plate 1, a mounting sleeve 2 and a mounting plate 2. The mounting sleeve 1 is detachably connected to the shaft body and is located at one end of the shaft body. The mounting plate 1 is fixedly connected to the mounting sleeve 1 and is located on the outside of the mounting sleeve 1. The mounting sleeve 2 is detachably connected to the shaft body and is located at the other end of the shaft body. The mounting plate 2 is fixedly connected to the mounting sleeve 2 and is located on the outside of the mounting sleeve 2.

[0011] The utility model provides an engine intake rocker arm shaft, wherein the oil through hole is arranged on the surface of the shaft body and penetrates the shaft body, the sealing cover is detachably connected to the shaft body and is located at one end of the shaft body, the fixing ring is detachably connected to the shaft body and wraps the shaft body, and the outer surface of the fixing ring has a groove, the rotating ball is rotatably connected to the fixing ring and is located in the groove of the fixing ring, the rotating ring is rotatably connected to the rotating ball and wraps the rotating ball, and the inner wall of the rotating ring has a groove adapted to the rotating ball, the rocker arm block is fixedly connected to the rotating ring and wraps The swivel, the intake valve arm and the rocker arm block are fixedly connected and are located on one side of the rocker arm block. The sealing cover is opened to add lubricating oil into the shaft body. The lubricating oil will flow to the fixed ring through the oil hole. When the rocker arm block starts to rotate, it will drive the swivel to rotate. The rotating ball will roll between the fixed ring and the swivel. At the same time, the lubricating oil will reduce the friction of the rotating ball when it rotates, thereby reducing wear. This method can effectively solve the problem of excessive wear between the rocker arm and the rocker arm shaft when the engine intake rocker arm shaft is working, resulting in a reduced overall service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0013] Figure 1 It is a structural schematic diagram of the first embodiment of the utility model.

[0014] Figure 2 It is a front view of the first embodiment of the utility model.

[0015] Figure 3 The utility model Figure 2 AA line structural section view.

[0016] Figure 4 The utility model Figure 3 Enlarged view of the local structure at point B.

[0017] Figure 5 It is a structural schematic diagram of the second embodiment of the utility model.

[0018] 101-shaft body, 102-oil hole, 103-sealing cover, 104-fixing ring, 105-rotating ball, 106-rotating ring, 107-rocker arm block, 108-intake valve arm, 109-intake valve pressing column, 110-pad, 111-camshaft arm, 112-camshaft block, 113-camshaft pad, 114-limiting ring, 115-limiting spring, 116-limiting block, 201-mounting sleeve one, 202-mounting plate one, 203-mounting sleeve two, 204-mounting plate two. DETAILED DESCRIPTION

[0019] Embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, but should not be understood as limiting the present invention.

[0020] The first embodiment of the present application is:

[0021] See also Figure 1 to Figure 4 ,in Figure 1 It is a structural schematic diagram of the first embodiment of the utility model. Figure 2 1 is a front view of the first embodiment of the utility model. Figure 3 The utility model Figure 2 AA line structural section view, Figure 4 The utility model Figure 3 Enlarged view of the local structure at point B.

[0022] The utility model provides an engine intake rocker shaft, comprising a shaft body 101, an oil hole 102, a sealing cover 103, a fixing ring 104, a rotating ball 105, a rotating ring 106, a rocker block 107, an intake valve arm 108, an intake valve pressing column 109, a cushion block 110, a camshaft arm 111, a camshaft block 112, a camshaft cushion 113, a limiting ring 114, a limiting spring 115 and a limiting block 116. The above scheme solves the problem in the prior art that when the engine intake rocker shaft is working, the wear between the rocker arm and the rocker shaft is too large, resulting in a reduction in the overall service life.

[0023] According to the present specific embodiment, the oil hole 102 is provided on the surface of the shaft body 101 and penetrates the shaft body 101, the sealing cover 103 is detachably connected to the shaft body 101 and is located at one end of the shaft body 101, the fixing ring 104 is detachably connected to the shaft body 101 and wraps the shaft body 101, and the outer surface of the fixing ring 104 has a groove, the rotating ball 105 is rotatably connected to the fixing ring 104 and is located in the groove of the fixing ring 104, the rotating ring 106 is rotatably connected to the rotating ball 105 and wraps the rotating ball 105, and the inner wall of the rotating ring 106 has a groove suitable for the rotating ball 105. The rocker arm block 107 is fixedly connected to the swivel 106 and wraps the swivel 106. The intake valve arm 108 is fixedly connected to the rocker arm block 107 and is located on one side of the rocker arm block 107. The sealing cover 103 is opened to pour the lubricating oil into the shaft body 101. After the sealing cover 103 is covered, the lubricating oil will flow into the fixed ring 104 through the oil hole 102. When the rocker arm block 107 rotates, it will drive the swivel 106 to rotate. The swivel 106 will drive the rotating ball 105 to roll between the swivel 106 and the fixed ring 104, thereby reducing wear with the support of the lubricating oil.

[0024] Among them, the intake valve pressing column 109 is fixedly connected to the intake valve arm 108 and is located on the outside of the intake valve arm 108. The cushion block 110 is detachably connected to the intake valve pressing column 109 and is located below the intake valve pressing column 109. When the rocker arm block 107 rotates, the intake valve pressing column 109 will drive the cushion block 110 to press the external intake valve, thereby achieving the purpose of engine intake.

[0025] Secondly, the camshaft arm 111 is fixedly connected to the rocker arm block 107 and is located on the other side of the rocker arm block 107. The camshaft block 112 is fixedly connected to the camshaft arm 111 and is located on one side of the camshaft arm 111. The camshaft pad 113 is fixedly connected to the camshaft block 112 and is located below the camshaft block 112. When the external camshaft rotates, the camshaft block 112 generates a height difference, which is converted into axial rotation through the camshaft arm 111, thereby serving as a power source for driving the rocker arm block 107 to rotate. The camshaft pad 113 reduces the wear between the camshaft arm 111 and the camshaft.

[0026] At the same time, the limit ring 114 is detachably connected to the shaft body 101 and is located on one side of the rocker arm block 107. One end of the limit spring 115 is detachably connected to the rocker arm block 107 and is located on the other side of the rocker arm block 107. The limit block 116 is detachably connected to the spring and is located at the other end of the spring. The limit ring 114 and the limit spring 115 fix the position of the rocker arm block 107 on the shaft body 101 so that the oil hole 102 can be aligned with the fixing ring 104.

[0027] An engine intake rocker arm shaft using the present embodiment is provided with a shaft body 101, an oil hole 102, a sealing cover 103, a fixing ring 104, a rotating ball 105, a rotating ring 106, a rocker arm block 107, an intake valve arm 108, an intake valve pressing column 109, a cushion block 110, a camshaft arm 111, a camshaft block 112, a camshaft cushion 113, a limiting ring 114, a limiting spring 115 and a limiting block 116. The oil hole 102 is provided on the surface of the shaft body 101 and passes through the shaft body 101. The sealing cover 103 is connected to the shaft body 101. 01 is detachably connected and is located at one end of the shaft body 101, the fixing ring 104 is detachably connected to the shaft body 101 and wraps the shaft body 101, and the outer surface of the fixing ring 104 has a groove, the rotating ball 105 is rotatably connected to the fixing ring 104 and is located in the groove of the fixing ring 104, the rotating ring 106 is rotatably connected to the rotating ball 105 and wraps the rotating ball 105, and the inner wall of the rotating ring 106 has a groove adapted to the rotating ball 105, and the rocker block 107 is fixedly connected to the rotating ring 106 , and wrap the rotating ring 106, the intake valve arm 108 is fixedly connected to the rocker arm block 107 and is located on one side of the rocker arm block 107. Before installation, the sealing cover 103 is opened to pour lubricating oil into the shaft body 101. After the sealing cover 103 is covered, the lubricating oil will flow into the fixing ring 104 through the oil hole 102. When the rocker arm block 107 rotates, it will drive the rotating ring 106 to rotate, and the rotating ring 106 will drive the rotating ball 105 to roll between the rotating ring 106 and the fixing ring 104, so as to lubricate the shaft body 101. With the help of lubricating oil, wear is reduced. When the external camshaft rotates, the camshaft block 112 produces a height difference, and this height difference is converted into axial rotation through the camshaft arm 111, thereby serving as a power source for driving the rocker arm block 107 to rotate. When the rocker arm block 107 rotates, the intake valve pressing column 109 will drive the pad 110 to press the external intake valve, thereby achieving the purpose of engine intake, thereby solving the problem of excessive wear between the rocker arm and the rocker arm shaft when the engine intake rocker arm shaft is working, resulting in a reduction in the overall service life.

[0028] The second embodiment of the present application is:

[0029] Based on the first embodiment, please refer to Figure 5 , Figure 5 It is a structural schematic diagram of the second embodiment of the utility model.

[0030] The utility model provides an engine intake rocker arm shaft, which also includes a mounting sleeve 201, a mounting plate 202, a mounting sleeve 203 and a mounting plate 204. The above solution solves the problem that the engine intake rocker arm shaft is inconvenient to install in the prior art.

[0031] Among them, the mounting sleeve 1 201 is detachably connected to the shaft body 101 and is located at one end of the shaft body 101, the mounting plate 1 202 is fixedly connected to the mounting sleeve 1 201 and is located on the outside of the mounting sleeve 1 201, the mounting sleeve 2 203 is detachably connected to the shaft body 101 and is located at the other end of the shaft body 101, the mounting plate 204 is fixedly connected to the mounting sleeve 2 203 and is located on the outside of the mounting sleeve 2 203, the mounting sleeve 1 201 and the mounting sleeve 2 203 connect the shaft body 101 with the mounting plate 1 202 and the mounting plate 2 204, and the mounting plate 1 202 and the mounting plate 2 204 can fix the shaft body 101 to the external engine casing.

[0032] An engine intake rocker arm shaft using the present embodiment is provided with a mounting sleeve 201, a mounting plate 202, a mounting sleeve 203 and a mounting plate 204. The mounting plate 1 202 and the mounting plate 204 can fix the shaft body 101 to the external engine casing. The mounting sleeve 1 201 and the mounting sleeve 203 connect the shaft body 101 with the mounting plate 1 202 and the mounting plate 204, thereby solving the problem that the engine intake rocker arm shaft is inconvenient to install.

[0033] The above disclosure is only a preferred embodiment of the present invention, and certainly cannot be used to limit the scope of rights of the present invention. Ordinary technicians in this field can understand that all or part of the processes of the above embodiment and equivalent changes made according to the claims of the present invention still fall within the scope covered by the utility model.

Claims

1. An engine intake rocker arm shaft, comprising a shaft body, an oil hole and a sealing cover, wherein the oil hole is arranged on the surface of the shaft body and passes through the shaft body, and the sealing cover is detachably connected to the shaft body and is located at one end of the shaft body, characterized in that: It also includes a lubrication assembly, which includes a fixed ring, a rotating ball, a swivel, a rocker arm block, an intake valve arm and a fixed component, the fixed ring is detachably connected to the shaft body and wraps the shaft body, and the outer surface of the fixed ring has a groove, the rotating ball is rotatably connected to the fixed ring and is located in the groove of the fixed ring, the swivel is rotatably connected to the rotating ball and wraps the rotating ball, and the inner wall of the swivel has a groove adapted to the rotating ball, the rocker arm block is fixedly connected to the swivel and wraps the swivel, and the intake valve arm is fixedly connected to the rocker arm block and is located on one side of the rocker arm block.

2. The engine intake rocker arm shaft according to claim 1, characterized in that: The lubrication assembly also includes an intake valve pressing column and a gasket. The intake valve pressing column is fixedly connected to the intake valve arm and is located on the outside of the intake valve arm. The gasket is detachably connected to the intake valve pressing column and is located below the intake valve pressing column.

3. The engine intake rocker arm shaft according to claim 1, characterized in that: The fixed component includes a camshaft arm, a camshaft block and a camshaft pad. The camshaft arm is fixedly connected to the rocker arm block and is located on the other side of the rocker arm block. The camshaft block is fixedly connected to the camshaft arm and is located on one side of the camshaft arm. The camshaft pad is fixedly connected to the camshaft block and is located below the camshaft block.

4. The engine intake rocker arm shaft according to claim 1, characterized in that: The fixing component also includes a limit ring, a limit spring and a limit block. The limit ring is detachably connected to the shaft body and is located on one side of the rocker arm block. One end of the limit spring is detachably connected to the rocker arm block and is located on the other side of the rocker arm block. The limit block is detachably connected to the spring and is located at the other end of the spring.

5. The engine intake rocker arm shaft according to claim 1, characterized in that: The engine intake rocker arm shaft also includes a mounting sleeve 1, a mounting plate 1, a mounting sleeve 2 and a mounting plate 2. The mounting sleeve 1 is detachably connected to the shaft body and is located at one end of the shaft body. The mounting plate 1 is fixedly connected to the mounting sleeve 1 and is located on the outside of the mounting sleeve 1. The mounting sleeve 2 is detachably connected to the shaft body and is located at the other end of the shaft body. The mounting plate 2 is fixedly connected to the mounting sleeve 2 and is located on the outside of the mounting sleeve 2.

Images