TWI611876B - Engine gas valve disassembly device - Google Patents

Description

Engine gas valve disassembly device

The invention relates to an disassembly device for an engine gas valve, in particular to a disassembly device for disassembling a gas valve without disassembling the engine camshaft.

Press, the working environment of the general engine gas valve is at a high temperature. Therefore, after using for a period of time, the internal parts may need to be replaced due to the deterioration of the material. The most frequently replaced part is a rubber gasket, but in the replacement work, With the existing dismantling tools, the camshaft above the gas valve must be dismantled beforehand to operate smoothly. The technical contents of the relevant disassembly tools are as shown in the Republic of China Patent Application No. 102149144 "Engine Valve Spring Disassembly Tool", 102224807 "Engine Steam" Door Spring Disassembly Tool", 92210153 "Vacuum Removal Tool", 101102416 "Engine Valve Spring Disassembly Tool", 92221630 "Structural Improvement of Disassembly Engine Valve Spring Disassembler", 96211119 "Engine Valve Spring Disassembly and Assembly Tool, 100200095 "Disassembly-type engine valve spring disassembly tool set", 99222571 "Multi-function disassembly-type valve spring disassembly tool set", etc., the technical contents disclosed above must be removed during assembly and disassembly operations. It is time consuming and inconvenient to disassemble the camshaft first.

Accordingly, it is an object of the present invention to provide an assembly and disassembly apparatus for an engine gas valve having a convenient disassembly operation.

Therefore, the disassembly and assembly device of the engine gas valve of the present invention is used for disassembling the engine gas. Body valve, the engine has a body, and a plurality of gas valves disposed on the body, each gas valve has an elastic member, the dismounting device has a pivoting component that can be mounted on the body, and is screwed to the pivot a screw on the assembly, and a pressing member extending laterally from the screw, the pressing member can be laterally extended above the elastic member, and the screw system can be axially rotated when the pivoting assembly pivots relative to the screw Displacement, the pressing member is pressed against the elastic member to perform the disassembly and assembly operation of the gas valve. In the disassembly and assembly process, the invention does not need to disassemble the parts of the engine above the gas valve, and has the advantages of convenient disassembly and assembly operation.

1‧‧‧ Disassembly and assembly device

2‧‧‧ Engine

21‧‧‧ body

22‧‧‧ gas valve

221‧‧‧ valve stem

222‧‧‧Flexible parts

223‧‧‧Parts

23‧‧‧Camshaft

24‧‧‧ pivot arm

3‧‧‧ feet

4‧‧‧crossbar

5‧‧‧ pivot components

51‧‧‧Base

52‧‧‧screws

53‧‧‧buffer cover

6‧‧‧ screw

7‧‧‧Resistance parts

71‧‧‧Sleeve

72‧‧‧Fracture arm

1 is a perspective view showing the disassembly and assembly device of an engine gas valve mounted on an engine according to a preferred embodiment of the present invention.

Fig. 2 is a partially exploded perspective view of Fig. 1.

Figure 3 is an exploded perspective view of a dismounting device in accordance with a preferred embodiment of the present invention.

Figure 4 is a cross-sectional side elevational view of the disassembly device of the preferred embodiment of the present invention assembled on the engine.

Figure 5 is a schematic view showing the operation of the dismounting device of a preferred embodiment of the present invention.

Figure 6 is a schematic view showing another operation of the detaching device of a preferred embodiment of the present invention.

Figure 7 is a schematic view showing various pressing members of the detachable device of a preferred embodiment of the present invention.

Referring to Figures 1 to 5, the dismounting device 1 of the present invention is a tool for attaching and detaching components of the engine 2, the engine 2 having a body 21, a plurality of gas valves 22 disposed on the body 21, and two camshafts 23 And a plurality of pivoting arms 24 that are interlocked by the camshaft 23, and the gas valves 22 are conventional. The structure, which is not described in detail herein, is composed of a valve stem 221, an elastic member 222 and a retaining member 223. The retaining member 223 is compressed by the corresponding pivot arm 24, and is rotated in the cam shaft 23. The pivoting arm 24 intermittently compresses the blocking member 223 and the elastic member 222, so that the valve stem 221 is actuated between opening and closing. The dismounting device 1 has two corresponding seats that are mounted on the body 21. 3. A set of crossbars 4 disposed on the legs 3, a set of pivoting assemblies 5 disposed on the crossbar 4, a screw 6 threaded on the pivoting assembly 5, and a set of a pressing member 7 extending from the end of the screw 6 and extending laterally, the pivoting assembly 5 has a base 51 pivoted on the crossbar 4, a screw sleeve 52 pivoted in the base 51, and a set a buffer sleeve 53 disposed on the threaded sleeve 52 and located between the threaded sleeve 52 and the base 51. The buffer sleeve 53 prevents wear of the threaded sleeve 52 and the base 51. The screw 6 is screwed with the threaded sleeve 52. When the screw sleeve 52 is rotated, the screw 6 is axially displaceable relative to the nut sleeve 52. Each of the pressing members 7 is formed with a sleeve 71, and a pressing arm 72 extending laterally from the sleeve 71. The sleeve 71 is sleeved On the end portion of the screw 6, the press arm 72 may be laterally pressed against the line above the stopper member 223 abuts the elastic member 222.

In the disassembly and assembly operation of the present invention, the two legs 3 are first fixed on the body 21 of the engine 2, and the crossbar 4 is connected to the two legs 3 and the base 51, and the base is adjusted. The angle of the crossbar 4 relative to the crossbar 4 is such that the pressing arm 72 of the pressing member 7 is pressed laterally against the retaining member 223, and then the screw sleeve 52 is rotated to rotate in the home position, so that the screw 6 is as shown in FIG. The axial displacement is shown. At this time, the pressing arm 72 is pressed downward against the blocking member 223 and the elastic member 222, so that the blocking member 223 is separated from the pivoting arm 24, and the pivoting arm 24 can be detached from the pressing. Above the retaining member 223, the screw sleeve 6 is then moved in the opposite direction to axially move the screw 6 to loosen the retaining member 223 and the elastic member 222. The retaining member 223 or the rubber component or gas valve 22 which is easily worn out inside. The other parts can be removed and replaced, that is, the disassembly operation is completed. When assembling, the screw sleeve 52 is first rotated to axially displace the screw 6 so that the pressing arm 72 presses against the blocking member 223 and the elastic member 222, and then the pivoting After the arm 24 is assembled, the retaining member 223 and the elastic member 222 are gradually released. After the abutting member 223 comes into contact with the pivot arm 24, the disassembly device 1 of the present invention is detached from the body 21 of the engine 2 to complete the assembly work.

When the disassembly and assembly device 1 of the present invention performs the disassembly and assembly operation, since the pressing arm 72 of the pressing member 7 extends laterally with respect to the screw 6, the cam shaft 23 of the engine 2 does not need to be disassembled first during the disassembly and assembly operation, so that the present invention is disassembled. The loading device 1 can achieve the convenience of disassembly and assembly work. In addition, in order to match the gas valve 22 at different positions, the angle of the sleeve 71 of the pressing member 7 opposite to the pressing arm 72 is also slightly different, as shown in Fig. 7. As shown, in the present embodiment, the pressing member 7 showing three different designs is taken as an example, but in principle the pressing arms 72 are laterally extended by the sleeve 71.

1‧‧‧ Disassembly and assembly device

2‧‧‧ Engine

21‧‧‧ body

22‧‧‧ gas valve

23‧‧‧Camshaft

24‧‧‧ pivot arm

3‧‧‧ feet

4‧‧‧crossbar

5‧‧‧ pivot components

51‧‧‧Base

52‧‧‧screws

6‧‧‧ screw

7‧‧‧Resistance parts

71‧‧‧Sleeve

72‧‧‧Fracture arm

Claims (5)

An engine gas valve dismounting device, the engine has a body, and a plurality of gas valves disposed on the body, each gas valve has an elastic member, and the dismounting device has a pivoting component that can be mounted on the body. a screw threaded on the pivoting assembly, and a pressing member extending laterally from the screw, the pressing member being laterally extended above the elastic member, when the pivoting assembly pivots relative to the screw The screw system is axially displaceable, and the pressing member is pressed against the elastic member to perform the disassembly and assembly operation of the gas valve. The disassembly and assembly device for an engine gas valve according to claim 1, wherein each of the pressing members is formed with a sleeve, and a pressing arm extending laterally from the sleeve, the sleeve is sleeved On the end of the screw, the pressing arm can be pressed against the elastic member. The disassembly device for an engine gas valve according to the second aspect of the invention, wherein the pivoting assembly has a base, a screw sleeve pivoted in the base, and the screw is screwed to the screw sleeve Settings. The disassembly device for an engine gas valve according to claim 3, wherein the pivoting assembly further has a buffer sleeve sleeved on the screw sleeve and located between the screw sleeve and the base. The disassembly and assembly device for an engine gas valve according to claim 4, wherein the dismounting device further has two legs corresponding to the body, and a cross bar disposed on the legs. The base is pivoted over the crossbar.