KR-20260062864-A - A JIG FOR INSTALLING AND DISMOUNTING

KR20260062864AKR 20260062864 AKR20260062864 AKR 20260062864AKR-20260062864-A

Abstract

The detachable jig (1) according to the present invention is installed on an opening/closing valve (106) and comprises a transfer screw portion (2) extending in the axial direction of a valve insertion recess (111), a nut portion (3) engaging with the transfer screw portion (2), a support shaft portion (4) installed on an engine block (105), and a connecting portion (5) connected to the nut portion (3) and the support shaft portion (4) to connect the transfer screw portion (2) and the support shaft portion (4). The connecting portion (5) is provided to allow adjustment of the axial distance between the transfer screw portion (2) and the support shaft portion (4).

Inventors

다무라 가즈키
아오키 쇼타로

Assignees

나부테스코 가부시키가이샤

Dates

Publication Date: 20260507
Application Date: 20251027
Priority Date: 20241029

Claims (11)

It is a detachable jig for inserting and removing an object to be installed into an installation hole formed in an installation body, and A feed screw portion installed on the above-mentioned installation body and extending in the axial direction of the above-mentioned installation hole, and A nut portion engaging with the above-mentioned transfer screw portion, and A support shaft portion installed in the above-mentioned installation, and A connecting portion connecting the nut portion and the support shaft portion is provided, and The above connecting portion is configured to allow adjustment of the axial distance between the feed screw portion and the support shaft portion, Detachable jig.
In paragraph 1, The above support shaft portion is provided in multiple portions, Detachable jig.
It is a detachable jig for inserting and removing an object to be installed into an installation hole formed in an installation body, and A feed screw portion installed on the above-mentioned installation body and extending in the axial direction of the above-mentioned installation hole, and A nut portion engaging with the above-mentioned transfer screw portion, and A plurality of support shaft sections installed in the above-mentioned installation, and A connecting part is provided to connect the above-mentioned nut part and each of the above-mentioned support shaft parts separately, and The above connecting portion is a detachable jig in which the distance between each of the above supporting shaft portions adjacent in the circumferential direction is adjustable.
It is a detachable jig for inserting and removing an object to be installed into an installation hole formed in an installation body, and A feed screw portion installed on the above-mentioned installation body and extending in the axial direction of the above-mentioned installation hole, and A nut portion engaging with the above-mentioned transfer screw portion, and A plurality of support shaft sections installed in the above-mentioned installation, and A connecting part is provided to connect the above-mentioned nut part and each of the above-mentioned support shaft parts separately, and The above connecting portion is configured to be adjustable in terms of the axial distance between the feed screw portion and the support shaft portion, and the distance between each of the support shaft portions adjacent in the circumferential direction. Detachable jig.
In any one of paragraphs 2 through 4, The above nut part is, A cylindrical nut body having a male screw thread formed on its outer surface and engaging with the above-mentioned transfer screw thread, and A first nut provided in the nut body and into which the transfer screw portion is inserted, and A second nut that engages with the above-mentioned male screw thread Equipped, The above connecting portion is formed elongated in one direction and has two connecting plates disposed between the first nut and the second nut, and Each of the above connecting plates is, A plate body provided on the above-mentioned nut body so as to be slidably movable in the radial direction, and A support shaft mounting portion provided on the outer side in the diameter direction of the plate body compared to the nut body, and on which the support shaft portion is installed. equipped, Detachable jig.
In any one of paragraphs 2 through 4, The above nut part is, A cylindrical nut body having a male screw thread formed on its outer surface and engaging with the above-mentioned transfer screw thread, and A first nut provided in the nut body and into which the transfer screw portion is inserted, and A second nut that engages with the above-mentioned male screw part Equipped, The above connecting portion is formed elongated in one direction and has two connecting plates disposed between the first nut and the second nut, and Each of the above connecting plates is, A plate body rotatably provided on the above-mentioned nut body, and A support shaft mounting portion provided on the outer side in the diametrical direction of the plate body compared to the nut body, and on which the support shaft portion is installed. equipped, Detachable jig.
In any one of paragraphs 2 through 4, The above nut part is, A cylindrical nut body having a male screw thread formed on its outer surface and engaging with the above-mentioned transfer screw thread, and A first nut provided in the nut body and into which the transfer screw portion is inserted, and A second nut that engages with the above-mentioned male screw thread Equipped, The above connecting portion is formed elongated in one direction and has two connecting plates disposed between the first nut and the second nut, and Each of the above connecting plates is, A plate body formed in the above-mentioned connecting plate in a unidirectionally elongated rectangular shape and having an elongated hole into which the nut body is inserted, and A support shaft mounting portion formed on the outer side in the diameter direction of the feed screw portion, rather than the long hole of the plate body, and on which the support shaft portion is installed. equipped, Detachable jig.
In any one of paragraphs 2 through 4, The above connecting part is, A support plate provided in the above-mentioned nut portion, and Two upper shafts provided on both sides with the nut portion of the support plate in between, and Two rails, each provided on each of the above-mentioned upper shafts so as to be slidably movable in the radial direction Equipped, On the opposite side of the upper shaft of each of the above rails, the support shaft portion is rotatably provided, Detachable jig.
In any one of paragraphs 2 through 4, The above connecting part is, A support plate provided in the above-mentioned nut portion, and Two upper shafts provided on both sides with the nut portion of the support plate in between, and Two rails each rotatably provided on the upper shaft Equipped, On the opposite side of the upper shaft of each of the above rails, the support shaft portion is rotatably provided, Detachable jig.
In any one of paragraphs 2 through 4, The above connecting part is, A support plate provided in the above-mentioned nut portion, and Two upper shafts provided on both sides with the nut portion of the support plate in between and extending along the axial direction of the feed screw portion, and Each of the above-mentioned upper shafts has an insertion hole into which it is inserted, and two rails extending in the diameter direction of the upper shaft. Equipped, The above insertion hole is formed in an oblong shape along the rail, and On the opposite side of the upper shaft of each of the above rails, the support shaft portion is rotatably provided, Detachable jig.
In any one of paragraphs 2 through 4, The above-mentioned installation includes an engine block used in a marine engine, and The above-mentioned installation includes an opening and closing valve connected to a fluid path formed in the engine block and driving a hydraulic actuator used in the marine engine. Detachable jig.

Description

A JIG FOR INSTALLING AND DISMOUNTING The present invention relates to a jig for attachment and detachment. For example, fuel pumps are used as actuators in the fuel injection systems of marine engines. It is known that this type of fuel pump delivers fuel by, for instance, causing the piston of a cylinder to reciprocate. Additionally, the reciprocating motion of the cylinder may be controlled using an accumulator. The accumulator causes the cylinder to reciprocate by controlling the pressure of the hydraulic fluid acting on the cylinder. The accumulator has two opening and closing valves provided in the middle of a flow path formed in the engine block of a marine engine, and an electronic valve that controls the opening and closing operation of each opening and closing valve. More specifically, an opening/closing valve insertion hole leading to the flow path is formed in the engine block. An opening/closing valve is installed in the engine block by inserting the opening/closing valve into this opening/closing valve insertion hole. The opening/closing valve is provided with, for example, an O-ring. This seals the connection between the engine block and the opening/closing valve. An electronic valve is provided, for example, in an engine block through a socket. A pilot passage leading to the engine block's passage is formed in the socket. The socket is secured by fastening a bolt to a female thread formed in the engine block. An electronic valve is connected to the pilot passage of this socket. Accordingly, the opening and closing operation of two opening and closing valves is switched by the pilot pressure generated by the electronic valve, causing the cylinder to reciprocate. FIG. 1 is a drawing illustrating the usage state of a detachable jig in the first embodiment of the present invention. FIG. 2 is a perspective view of a detachable jig in the first embodiment of the present invention. FIG. 3 is a perspective view of a valve holder in the first embodiment of the present invention. FIG. 4 is an exploded perspective view of the nut portion in the first embodiment of the present invention. FIG. 5 is a drawing illustrating the usage state of a detachable jig in a second embodiment of the present invention. FIG. 6 is a perspective view of a detachable jig in a second embodiment of the present invention. Next, embodiments of the present invention will be described based on the drawings. [First Embodiment] Fuel supply system Detachable jig FIG. 1 is a drawing illustrating the usage state of the detachable jig (1) in the first embodiment. FIG. 2 is a perspective view of the detachable jig (1). As shown in FIGS. 1 and 2, the detachable jig (1) is used to install or remove an opening/closing valve (106) on an engine block (105) that constitutes a fuel supply/discharge device (100). A fuel supply and discharge device (100) is described. The fuel supply and discharge device (100) is a device for supplying fuel to a marine engine not shown or for exhausting exhaust gas from a marine engine not shown. An opening and closing valve (106) is used to operate the injection valve for supplying fuel or the exhaust valve for exhausting exhaust gas. In addition to the opening/closing valve (106), an unillustrated socket is fixed to the engine block (105). On the socket fixing surface (105a) of the engine block (105), a plurality of female threaded portions (105b) for fixing the unillustrated socket are formed. Additionally, a valve insertion recess (111) for inserting an opening/closing valve (106) is formed on the socket fixing surface (105a) of the engine block (105). A passage (110) connected to an injection valve or an exhaust valve is formed in the engine block (105). The valve insertion recess (111) is connected to the passage (110). The valve insertion recess (111) has an opening (111a) that is open to the outside on the socket fixing surface (105a) of the engine block (105). An opening/closing valve (106) is inserted into the valve insertion recess (111) through this opening (111a). The detachable jig (1) is used when inserting the opening/closing valve (106) into the valve insertion recess (111). The detachable jig (1) is used by installing it on two of the multiple female threaded portions (105b) of the engine block (105). The detachable jig (1) is used in a temporary insertion state in which the opening/closing valve (106) is slightly inserted into the valve insertion recess (111). The detachable jig (1) is provided with a transfer screw portion (2) installed on the opening/closing valve (106), a nut portion (3) engaged with the transfer screw portion (2), two support shaft portions (4) each installed separately on the engine block (105), and a connecting portion (5) connecting the transfer screw portion (2) and each support shaft portion (4). <Transfer Screw Section> The transfer screw section (2) comprises a round rod-shaped male screw rod (6), a valve holder (8) rotatably supported by interposing a bearing (7) a