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KR-102964689-B1 - VERTICAL PUMP FOR ENGINE USE

KR102964689B1KR 102964689 B1KR102964689 B1KR 102964689B1KR-102964689-B1

Abstract

The present invention relates to an upright pump for an engine, and more specifically, to an upright pump for an engine that allows for vertical connection of the engine and installation even in confined spaces, while enabling easy forward and reverse driving and acceleration/deceleration of the pump.

Inventors

  • 박강용

Dates

Publication Date
20260512
Application Date
20250930

Claims (7)

  1. In an upright pump for an engine having a frame portion (100), an engine (200) having an engine shaft (210) provided on the frame portion (100), and an upright pump (300) provided upright while maintaining a certain distance from the engine (200), The above upright pump (300) A shaft body (421) having a cylindrical shape that is parallel to the engine (200) according to the height of the engine (200) provided in the frame part (100) and is aligned with the engine shaft (210) of the engine (200); A first and second side stepped portions (422) (423) provided on both sides spaced apart at a certain distance from the center of the shaft body (421), a first side bevel gear (430) fitted and coupled to the first side stepped portion (422), a second side bevel gear (430a) fitted and coupled to the second side stepped portion (423), a first side male spline (424) provided up to a first end while maintaining a certain distance from the first side bevel gear (430), a second side male spline (425) provided to be exposed for a predetermined length by penetrating the second side wall surface (412) of the transmission housing (410) while maintaining a certain distance from the second side bevel gear (430a), and a transmission having a ring-shaped fixing groove (426-1) provided extending outwardly from the second side male spline (425). A transmission unit (400) equipped with a transmission shaft (420) including a joining shaft (426); The above transmission unit (400) comprises a transmission housing (410) provided with a predetermined space (S) inside between the engine shaft (210) and the upright pump (300); One and other bevel gears (430) (430a) spaced apart from each other at a certain distance on the transmission shaft (420) which is provided with both ends exposed to a predetermined length by horizontally penetrating both sides inside the transmission housing (410); A pump shaft (440) having a pump shaft bevel gear (441) provided between the above-mentioned one-sided bevel gear (430) and the other-sided bevel gear (430a); A support member (450) configured to allow the transmission shaft (420), which is exposed to the outside of the transmission housing (410), to rotate and slide back and forth in the axial direction; and An upright pump for an engine characterized in that the transmission shaft (420) and the engine shaft (210), which are exposed through the support member (450), are coupled by a slide coupling member (460), so that the upright pump (300) is driven to forward, reverse, or change speed by the transmission member (400).
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  4. In paragraph 1, The above transmission housing (410) An upright pump for an engine characterized by having one side wall (411) and the other side wall (412) each having a rectangular box shape, having one and other side through holes (411-1) (412-1), having bolt fastening holes (BH) around the one and other side through holes (411-1) (412-1), and having a transmission housing cover (413) attached to the front and rear.
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  6. In paragraph 1, The above support member (450) It is provided with one side support member (450a) and the other side support member (450b), The above-mentioned one-sided support member (450a) is A one-sided support flange (452a) is provided, having a one-sided male-side flange flow groove (452a-2) that communicates with a one-sided bearing fixing groove (452a-1) into which a one-sided bearing (451a) is fitted and fixed, and a one-sided bolt through hole (452a-3) at the other end. The outer circumference of the one-sided female spline (453a) is fitted into the inner ring of the one-sided bearing (451a), and the inner circumference of the one-sided female spline (453a) is fitted into the one-sided male spline (424). Then, the one-sided support flange (452a) is abutted against the outer side of the one-sided wall surface (411) of the transmission housing (410) and joined by a bolt (BT). The above other side support member (450b) is The other side male spline flow groove (452b-2), which communicates with the other side bearing fixing groove (452b-1) into which the other side bearing (451b) is fitted and fixed, has a stepped shape, and the other side support flange (452b) is provided with an other side bolt through hole (452b-3) at one end. The outer circumference of the other female spline (453) is fitted into the inner ring of the other bearing (451b), and the inner circumference of the other female spline (453) is fitted into the other male spline (425). Then, the other support flange (452b) is abutted against the outer side of the other wall surface (412) of the transmission housing (410) and joined by a bolt (BT). An upright pump for an engine characterized in that the other male spline (425) fitted into the other female spline (453) penetrates the other support member (450b) and is exposed to the outside.
  7. In paragraph 1, The above slide coupling part (460) is It is provided with one side coupling (460a) coupled to the transmission shaft (420) and the other side coupling (460b) coupled to the engine shaft (210), The above one-sided coupling (460a) is A boss (461a) having a joint shaft insertion groove (461a-1) has a boss female screw hole (461a-3) having at least one bolt head seating groove (461a-2) formed through the outer circumference of the boss (461a), so that a joint shaft fixing bolt (JB) is screw-coupled to fix a transmission joint shaft (426) inserted into the joint shaft insertion groove (461a-1), and a pushing disk (462a) having a pushing female screw hole (462a-1) and a through slide hole (462a-2) is provided on the other side of the boss (461a), and a pushing gap adjustment bolt (463) having a pushing bolt head (463-1) on one side and a pushing bolt catch ring (463-2) on the other side is screw-coupled to pass through the pushing female screw hole (462a-1). The above other coupling (460b) is A pushing bolt insertion groove (461b-2) is provided in the other pushing disk (461b) through which the engine shaft coupling hole (461b-1) is penetrated, with the center aligned with the pushing female screw hole (462a-1). A pushing bolt fixing female screw hole (461b-3) is provided on the outer circumference of the other pushing disk (461b) in a direction perpendicular to the pushing bolt insertion groove (461b-2). A pushing bolt catch ring (463-2) inserted into the pushing bolt insertion groove (461b-2) is rotatable by means of a pushing fixing bolt (464) that is screw-coupled to the pushing bolt fixing female screw hole (461b-3), and is provided so as to restrict axial movement. A slide shaft (460b-4) is provided protruding from the other coupling (460b), with the center aligned with the penetrating slide hole (462a-2), and the penetrating An upright pump for an engine characterized in that the slide hole (462a-2) is provided to be capable of reciprocating sliding movement in the axial direction along the slide axis (460b-4).

Description

Vertical Pump for Engine Use The present invention relates to an upright pump for an engine, and more specifically, to an upright pump for an engine that allows for vertical connection of the engine and installation even in confined spaces, while enabling easy forward and reverse driving and acceleration/deceleration of the pump. Generally, vertical pumps are used when drawing up liquid from deep pits, tanks, underground storage facilities, etc., with the installation direction oriented vertically. Upright liquid pumps are used in a wide range of applications, such as industrial cooling water transfer, liquid transfer in water purification and sewage treatment plants, chemical plants, groundwater pumping, and condensate treatment in power plants. The driving force of a motor located at the top of the pump is transmitted to an impeller through a shaft, and the impeller rotates the liquid to convert kinetic energy into pressure energy, thereby guiding the flow of the liquid and providing pressure. In the prior art, a vertical pump for firefighting was proposed in Registered Patent Publication No. 10-1295781 (August 6, 2013). The proposed vertical pump consists of a pumping body including an impeller and a fluid inlet/outlet, a connecting support penetrating the rotating shaft, and a motor and coupler installed on the upper part, allowing the motor drive shaft and the rotating shaft to be easily connected and the structure to be simplified, making assembly and disassembly easy while reducing the installation space and enabling efficient placement. However, there was a problem in that it could only be used where electricity could be supplied, and could not be used where electricity could not be supplied. FIG. 9 illustrates an upright liquid pump that utilizes the driving force of an engine, driven by a diesel or gasoline engine, in an environment where electricity supply is difficult. In an upright liquid pump, the driving force generated from an engine (710) provided on one side of the upper part of the frame (700) is transmitted to the input side of a gearbox (740) provided on the other side of the upper part by means of a belt (720) and a belt pulley (730), and is transmitted to a pump (750) through the output side of the gearbox (740), thereby allowing the liquid to be transported through the repetition of a pumping action in which the liquid is sucked into the suction part provided in the pump (750), compressed, and then discharged through the discharge part. This upright liquid pump had a problem in that the efficiency of the pump was reduced due to the sagging of the belt (720) during the process in which the driving force generated from the engine (710) was transmitted to the gearbox (740) by the belt (720) and the belt pulley (730), and the efficiency of acceleration and deceleration was also reduced. Since horizontal connection is established during the process of transmitting driving force by belt, there was a problem of having to secure a large amount of installation space and consequently, a low space utilization rate. FIG. 1 is a front view illustrating an upright pump for an engine according to the present invention. FIG. 2 is a perspective view illustrating a transmission unit in an upright pump for an engine according to the present invention. FIG. 3 is a perspective view showing the transmission unit separated in an upright pump for an engine according to the present invention. FIG. 4 is a longitudinal cross-sectional view illustrating a transmission unit in an upright pump for an engine according to the present invention. FIG. 5 is a longitudinal cross-sectional view illustrating the forward driving of a transmission unit in an upright pump for an engine according to the present invention. FIG. 6 is a cross-sectional view illustrating the reverse driving of the transmission unit in an upright pump for an engine according to the present invention. FIG. 7 is a cross-sectional view illustrating a transmission unit in an upright pump for an engine according to the present invention. FIG. 8 is a front view illustrating the state in which an upright pump is installed at the bottom of an upright pump for an engine according to the present invention. FIG. 9 is a front view illustrating an upright pump for an engine according to the prior art. Hereinafter, the present invention may be subject to various modifications and may have various embodiments, and specific embodiments are illustrated in the drawings and described in detail. However, this is not intended to limit the present invention to specific embodiments, and it should be understood that it includes all modifications, equivalents, and substitutions that fall within the spirit and scope of the present invention. These embodiments are provided to further explain the invention to those skilled in the art to which the invention pertains. Accordingly, the shape of each element shown in the drawings may be exaggerated to emphasize a clearer explan