Disassembling and assembling tool for starting valve of cylinder cover of diesel engine

Abstract

The utility model discloses a diesel engine cylinder cover starting valve dismounting tool which comprises a body. The fixing and supporting mechanism is connected with the main body and is used for mounting the main body on a cylinder cover; the lifting mechanism is connected with the main body and moves up and down on the main body; the pulling-out piece is connected to the lifting mechanism and used for disassembling and assembling the starting valve; the main body is installed on the cylinder cover through the fixing and supporting mechanism, then the starting valve is disassembled and installed through cooperation of the lifting mechanism and the pulling-out piece, the structure is simple, the starting valve can be easily assembled and disassembled in a valve hole of the cylinder cover, and the disassembling and assembling efficiency of the starting valve is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to diesel engine maintenance technical field especially relates to a diesel engine cylinder cover starting valve dismounting tool. BACKGROUND

[0002] The diesel engine generally adopts the mode of compressed air cylinder starting to start the diesel engine, and one starting valve is arranged on each cylinder cover, compressed air opens the starting valve of each cylinder in turn according to the ignition sequence of the diesel engine, and the compressed air enters the cylinder from the main air pipeline to push the piston to move, so that the diesel engine ignites and runs. Since the compressed air and the fuel gas in the combustion chamber of the running diesel engine have very high pressure, the sealing requirement of each contact surface of the starting valve and the valve hole is very high, and the machining precision of the starting valve and the valve hole is also very high, so it is required to strengthen the surface protection of parts during the installation and dismounting of the starting valve, and once the sealing surface is damaged, air leakage will be caused, affecting the starting of the diesel engine.

[0003] The starting valve itself has a certain weight, and the valve hole on the cylinder cover is relatively deep, so there is a certain difficulty in the installation and dismounting of the starting valve, and if there is no special tool to assist the installation and dismounting of the starting valve, it is difficult to ensure the good cooperation of the starting valve, and the dismounting efficiency of the starting valve is also reduced. UTILITY MODEL CONTENTS

[0004] The technical problem to be solved by the utility model is to provide a diesel engine cylinder cover starting valve dismounting tool which is simple in structure, convenient to operate and can effectively protect the starting valve.

[0005] The utility model adopts the technical scheme that:

[0006] A diesel engine cylinder cover starting valve dismounting tool, comprising:

[0007] A main body;

[0008] A fixing and supporting mechanism connected with the main body and used for mounting the main body on the cylinder cover;

[0009] A lifting mechanism connected with the main body and moving up and down on the main body; and

[0010] A pulling-out piece connected with the lifting mechanism and used for dismounting the starting valve.

[0011] Further, in the diesel engine cylinder cover starting valve dismounting tool, preferably, a fixing groove for screwing or clamping the starting valve is arranged at the bottom of the pulling-out piece.

[0012] Further, in the diesel engine cylinder cover starting valve dismounting tool, preferably, the inner wall surface of the fixing groove is matched with the shape of the outer wall surface of the starting valve.

[0013] Further, preferably, the lifting mechanism comprises a lifting member mounted on the main body and a fixed rotating member mounted on the lifting member.

[0014] Further, preferably, the lifting member is a screw rod, a rotating hole is formed on the main body, and the screw rod is rotatably mounted in the rotating hole.

[0015] Further, preferably, the lifting member is an electric driving member, and the electric driving member is mounted on the main body through the fixed rotating member.

[0016] Further, preferably, the fixed supporting mechanism comprises at least one first pipe rod and a second pipe rod mounted on the main body, the bottom of the first pipe rod is clamped on a nut on the cylinder head, and the second pipe rod is supported on the cylinder head.

[0017] Further, preferably, the first pipe rod and the second pipe rod are arranged on both sides of the lifting mechanism and are parallel to each other.

[0018] Further, preferably, the first pipe rod and the second pipe rod are fixedly connected, clamped or detachably mounted on the main body.

[0019] Further, preferably, the main body has a triangular structure, a rectangular structure or an irregular structure, and the first pipe rod and the second pipe rod are respectively mounted at the corners of the main body.

[0020] The present application has the following advantages: the main body is mounted on the cylinder head through the fixed supporting mechanism, and then the starting valve is disassembled and mounted by cooperation of the lifting mechanism and the pulling member, so that the starting valve can be easily installed and dismounted in the valve hole of the cylinder head, and the dismounting efficiency of the starting valve is improved. BRIEF DESCRIPTION OF DRAWINGS

[0021] The present application will be further described below with reference to the drawings and embodiments. In the drawings:

[0022] Figure 1 is a first perspective view of a diesel engine cylinder head starting valve dismounting tool in some embodiments of the present application.

[0023] Explanation of reference numerals in the schematic view:

[0024] 1, main body; 11, rotating hole; 2, pulling piece; 21, fixed groove; 3, lifting piece; 4, fixed rotating piece; 5, first pipe rod; 6, second pipe rod. DETAILED DESCRIPTION

[0025] In order to have a clearer understanding of the technical features, objectives and effects of the present application, the specific embodiments of the present application will be described in detail with reference to the drawings. In the following description, it should be understood that the directions or positional relationships indicated by "front", "back", "up", "down", "left", "right", "vertical", "horizontal", "vertical", "horizontal", "top", "bottom", "inner", "outer", "head", "tail" and the like are based on the directions or positional relationships shown in the drawings, constructed and operated in a particular direction, and are only for the convenience of describing the technical solutions, and do not indicate that the devices or elements referred to must have a particular direction, therefore, it cannot be understood as a limitation on the present application.

[0026] It should also be noted that, unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connecting", "fixing", "setting" and the like should be broadly understood, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two elements or the interaction relationship between two elements. When an element is referred to as "on" or "below" another element, the element can be "directly" or "indirectly" above the other element, or there can be one or more intermediate elements. The terms "first", "second", "third" and the like are only for the convenience of describing the technical solutions, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features, therefore, the features with "first", "second", "third" and the like can be explicitly or implicitly included one or more of the features. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0027] In the following description, specific details such as specific system structures, technologies, etc. are presented for the purpose of illustration, not for the purpose of limitation, so as to thoroughly understand the embodiments of the present application. However, it should be clear to those skilled in the art that the present application can also be implemented in other embodiments without these specific details. In other cases, detailed description of well-known systems, devices, circuits and methods is omitted to avoid unnecessary details that hinder the description of the present application.

[0028] The technical solution adopted by the present application to solve its technical problems is:

[0029] For example, Figure 1As shown, some embodiments of the utility model discloses a kind of diesel engine cylinder cover starting valve dismounting tool, which comprises main body 1, fixed support mechanism, lifting mechanism and puller 2;Fixed support mechanism is connected with main body 1 and is used to install main body 1 on cylinder cover;Lifting mechanism is connected with main body 1 and moves up and down on main body 1;Puller 2 is connected on lifting mechanism and is used to dismount starting valve.

[0030] As can be understood, the fixed support mechanism is installed at the bottom of the main body 1, and the fixed support mechanism is installed on the two exhaust valve fixing nuts of the cylinder, for fixing and supporting the main body 1 on the cylinder;The lifting mechanism is installed at the bottom of the main body 1 and vertically corresponds to the starting valve;The puller 2 is installed on the lifting mechanism and fixes the starting valve, and the starting valve is pulled out from the starting valve mounting hole by moving the puller 2 upward driven by the lifting mechanism, to realize the dismounting of the starting valve.

[0031] When installing, the pneumatic valve is installed on the puller 2, and the puller 2 is moved downward driven by the lifting mechanism, so that the starting valve is inserted into the mounting hole, to realize the installation of the starting valve. The starting valve can be easily installed and removed in the valve hole of the cylinder cover, improving the dismounting efficiency of the starting valve.

[0032] In some embodiments, the puller 2 is internally machined with an internally threaded sleeve, the sleeve is matched with the threads machined on the valve stem of the starting valve through threads, the sleeve is screwed onto the valve stem of the starting valve, and the connection and fixation are performed.

[0033] For example Figure 1 As shown, the bottom of the puller 2 is provided with a fixing groove 21 for screwing or clamping the starting valve. The inner wall surface of the fixing groove 21 is matched with the shape of the outer wall surface of the starting valve.

[0034] In some embodiments, the inside of the fixing groove 21 is provided with threads, and the puller 2 is screwed into and fixed on the valve stem of the starting valve through the fixing groove 21.

[0035] In some embodiments, the shape of the fixing groove 21 is matched with the valve stem of the starting valve, and the fixing groove 21 is clamped on the valve stem of the starting valve. A clamping block or clamping buckle structure can also be provided in the fixing groove 21, the fixing groove 21 of the puller 2 is inserted onto the valve stem of the starting valve, and the valve stem of the starting valve is fixed in the fixing groove 21 through the clamping block or clamping buckle structure.

[0036] As can be understood, the puller 2 is inserted into the mounting hole by the lifting mechanism;Then the puller 2 is rotated driven by the lifting mechanism, and the puller 2 is screwed onto the valve stem of the starting valve through the threads in the inside of the fixing groove 21, or the puller 2 is inserted onto the valve stem of the starting valve, and the fixing groove 21 is clamped together with the starting valve;Finally, the starting valve is pulled out by the lifting mechanism.

[0037] The lifting mechanism comprises a lifting member 3 installed on the main body 1 and a fixed rotating member 4 installed on the lifting member 3.

[0038] The lifting member 3 is a screw rod, and the main body 1 is provided with a rotating hole 11, and the screw rod is rotatably installed in the rotating hole 11, and the fixed rotating member 4 is screwedly installed at one end of the screw rod protruding from the main body 1.

[0039] In some embodiments, the outer surface of the screw rod is provided with threads, the screw rod is inserted into the rotating hole 11 on the main body, the fixed rotating member 4 is a nut, and the fixed rotating member 4 is installed at the top end of the lifting member 3. It can be understood that the nut is screwedly connected at the top end of the screw rod, the size of the nut is larger than the diameter of the rotating hole 11, the bottom of the nut abuts against the top of the main body 1, and rotating the nut can make the screw rod move upward. And the screw rod has a guiding effect, which can effectively protect the starting valve sealing surface and the sealing ring from being damaged during disassembly and assembly, and improve the disassembly and assembly efficiency of the starting valve.

[0040] Or the lifting member 3 is an electric drive member, and the electric drive member is installed on the main body 1 through the fixed rotating member 4.

[0041] In some embodiments, the electric drive member is a gas cylinder or an electric telescopic rod, and the pulling member 2 is installed at the output end of the electric drive member. Using the gas cylinder or the electric telescopic rod and other equipment can directly use electric equipment to disassemble and assemble the electric valve, saving manpower and improving work efficiency.

[0042] As shown in Figure 1 The fixed support mechanism comprises at least one first pipe rod 5 and a second pipe rod 6 installed on the main body 1, the bottom of the first pipe rod 5 is clamped on the nut on the cylinder head, and the second pipe rod 6 is supported on the cylinder head.

[0043] In some embodiments, the first pipe rod 5 and the second pipe rod 6 are both steel pipes, the first pipe rod 5 is used to fix the main body 1 on the fastening nut of the exhaust valve of the cylinder head, and the first pipe rod 5 is a hollow structure which is buckled on the fastening nut. The second pipe rod 6 is supported on the surface of the cylinder head to stably support the main body 1 to keep balance.

[0044] The first pipe rod 5 and the second pipe rod 6 are arranged on both sides of the lifting mechanism and are parallel to each other.

[0045] The first pipe rod 5 and the second pipe rod 6 are fixedly connected, clamped or detachably installed on the main body 1.

[0046] The main body 1 is in a triangular structure, a rectangular structure or an irregular structure, and the first pipe rod 5 and the second pipe rod 6 are respectively installed at the corners of the main body 1.

[0047] In some embodiments, the main body 1 is in a triangular plate structure, two first pipe rods 5 are provided, two first pipe rods 5 are installed at two corners of the main body 1, and the second pipe rod 6 is installed at the other corner. The triangular structure is more stable, the space is smaller, the tool support is more stable and reliable, and the better guiding effect is achieved, and the fixed rotating part 4 and the lifting part 3 can conveniently lift the starting valve out of the valve hole of the cylinder cover.

[0048] In some embodiments, the main body 1 is in a rectangular structure, two first pipe rods 5 and two second pipe rods 6 are provided, and are respectively installed at four corners of the rectangular structure main body 1. The number and installation position of the first pipe rod 5 and the second pipe rod 6 can be set according to actual use requirements.

[0049] The length of the second pipe rod 6 is longer than that of the first pipe rod 5.

[0050] In some embodiments, since the surface of the cylinder cover is not a plane and has high and low differences, the length of the second pipe rod 6 is longer than that of the first pipe rod 5, so that the main body 1 is parallelly supported on the plane of the cylinder cover, and inclination of the main body 1 is avoided.

[0051] The diesel engine cylinder cover starting valve dismounting tool will be further described below in combination with the use process.

[0052] When the diesel engine cylinder cover starting valve dismounting tool is used: when the cylinder cover starting valve is dismounted, the first pipe rod 5 is installed and fixed on two exhaust valve fixed nuts of the cylinder, and the second pipe rod 6 is supported on the plane of the cylinder cover; then the lifting part 3 is inserted into the rotating hole 11 of the main body 1, and the pulling part 2 is inserted into the installation hole of the cylinder cover starting valve, the pulling part 2 is rotated to make the fixed groove 21 rotate into the valve rod of the starting valve to be connected and fixed; finally, the fixed rotating part 4 is installed at the top end of the lifting part 3, the fixed rotating part 4 is rotated to make the lifting part 3 move upward, the starting valve is pulled out of the installation hole, and the dismounting of the starting valve is realized.

[0053] When the cylinder cover starting valve is installed, the second pipe rod 6 is supported on the plane of the cylinder cover; then the lifting part 3 is inserted into the rotating hole 11 of the main body 1, the starting valve is rotated into the fixed groove 21 of the pulling part 2, and finally the fixed rotating part 4 is installed on the lifting part 3, the fixed rotating part 4 is reversed to make the lifting part 3 descend, the starting valve is inserted or rotated into the installation hole, and the installation of the starting valve is realized.

[0054] It can be understood that the above embodiments only express the preferred embodiments of the utility model, the description is more specific and detailed, but it can not be understood as the limitation of the utility model patent scope; it should be pointed out that for ordinary skilled person in the art, the above technical features can be freely combined without departing from the concept of the utility model, and a number of modifications and improvements can be made, which belong to the protection scope of the utility model; therefore, any equivalent transformation and modification within the scope of the utility model patent claim should belong to the scope of the utility model patent claim.

Claims

1. A diesel engine cylinder head starting valve removal tool characterized by, The application relates to a starter valve dismounting device, which comprises the following parts: a main body; a fixed support mechanism connected with the main body and used for mounting the main body on a cylinder cover; a lifting mechanism connected with the main body and moving up and down on the main body; and a pulling-off piece connected with the lifting mechanism and used for dismounting the starter valve. A fixing groove for screwing or clamping the starter valve is arranged at the bottom of the pulling-off piece.

2. The diesel cylinder head start valve installation and removal tool of claim 1, wherein, The inner wall surface of the fixing groove is matched with the outer wall surface of the starter valve.

3. The diesel cylinder head start valve installation and removal tool of claim 2 wherein, The lifting mechanism comprises a lifting piece installed on the main body and a fixed rotating piece installed on the lifting piece.

4. The diesel cylinder head start valve installation and removal tool of claim 1 wherein, The lifting piece is a screw rod, a rotating hole is arranged on the main body, the screw rod is rotatably installed in the rotating hole, and the fixed rotating piece is screwedly installed on one end of the screw rod protruding from the main body.

5. The diesel cylinder head start valve installation and removal tool of claim 4 wherein, Or the lifting piece is an electric driving piece, and the electric driving piece is installed on the main body through the fixed rotating piece.

6. The diesel cylinder head start valve removal tool of claim 4, wherein, The fixed support mechanism comprises at least one first pipe rod and a second pipe rod installed on the main body, the bottom of the first pipe rod is clamped on a nut on the cylinder cover, and the second pipe rod is supported on the cylinder cover.

7. The diesel cylinder head start valve removal tool of claim 1, wherein, The first pipe rod and the second pipe rod are arranged on the two sides of the lifting mechanism and are parallel to each other.

8. The diesel cylinder head start valve removal tool of claim 7, wherein, The first pipe rod and the second pipe rod are fixedly connected, clamped or detachably installed on the main body.

9. The diesel cylinder head start valve removal tool of claim 7, wherein, The main body is in a triangular structure, a rectangular structure or an irregular structure, and the first pipe rod and the second pipe rod are respectively installed at the corners of the main body.

10. The diesel cylinder head start valve removal tool of claim 7, wherein, ​

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