JPH041346Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Field of Application] This invention relates to an assembly structure for a hydraulic pump and motor of a hydraulic device used in a molding machine or the like.

[Prior Art] Conventionally, a hydraulic pump and a motor are assembled by fixing both of them on a base plate. Therefore, it is difficult to concentrically connect the output shaft of the motor and the input shaft of the hydraulic pump, which not only takes time to assemble, but also requires precision on the mounting surface of the motor and hydraulic pump on the base plate, which reduces costs. prices are also getting higher.

Therefore, some methods are used to connect the flange surface of the motor and the flange surface of the hydraulic pump with a bracket instead of fixing the hydraulic pump, but in this assembly structure, there is no means to support the hydraulic pump side. Therefore, it is not suitable for assembling large, heavy pumps, and is used exclusively for small and lightweight pumps.

[Problem that the invention aims to solve] Recently, variable discharge pumps and compound pumps have become popular as energy saving measures, etc., but these pumps have lower performance compared to the fixed discharge pumps that have been commonly used in the past. , they are very heavy, and these pumps are often equipped with control valves and circuit blocks to control the pump, so the hydraulic pump side is also fixed, and both sides are fixed. What is needed is a structure that allows the axes to be aligned very easily and accurately.

This idea was developed in light of the above circumstances, and its purpose was to create a hydraulic pump that could withstand the weight of the hydraulic pump without having to be fixed to a base plate, and that also made it extremely easy to align the output shaft and input shaft. The object of the present invention is to provide a motor assembly structure.

[Means for Solving the Problems] The features of this invention for the above purpose are that the motor is fixed on one side of the upper surface of the base plate with the output shaft inside, and the input shaft is fixed on the base plate with the input shaft concentric with the output shaft of the motor. The bracket consists of a hydraulic pump installed, and a bracket with concentric openings at both ends, a flange formed around the bracket, and a supporting leg whose length can be adjusted freely at the end facing the hydraulic pump, and the bracket has a support leg whose length can be adjusted freely. are formed to protrude to have the same diameter as the openings at both ends of the bracket, and the motor and pump end faces are fitted into the respective opening ends of the bracket with the respective grooves, thereby connecting the motor and hydraulic pump 5.
and are integrally connected, and the load of the hydraulic pump is supported on the base plate by the supporting legs.

[Example] This invention will be explained in detail below using illustrated examples.

In the figure, reference numeral 1 denotes a base plate, and a horizontal motor 2 is fixed on one side of its upper surface with the output shaft 3 inside.

A bracket 4 has concentric openings at both ends and flanges 4a and 4b surrounding the bracket. In addition, on the lower side of the flange 4b on the hydraulic pump side,
A plurality of bolt-shaped supporting legs 8 located on the base plate are screwed into place.

A hydraulic pump 5 is provided on the upper surface of the base plate 1 with an input shaft 6 concentric with the output shaft 3 of the motor 2.

Pump end face 5 around the input shaft of this hydraulic pump 5
a and the motor end face 2 around the output shaft of the motor 2
A is formed to protrude and have the same diameter as the opening of the bracket 4, and the end faces thereof are adapted to fit into the opening ends of the bracket 4 and the respective dowels.

The motor 2 and the hydraulic pump 5 are assembled via the bracket 4 after the motor 2 is mounted on the base plate. A coupling ring 7 is attached to the output shaft 3 of this motor 2.

After fixing the motor 2 to the base plate 1, the bracket 4 is fixed to the motor 2 with bolts by fitting one open end into the protruding end surface of the motor 2 with the support leg 8 attached. . Furthermore, since the supporting legs 8 are shortened so as not to become an obstacle to the mounting, the supporting legs 8 are rotated and extended after being fixed, and come into contact with the upper surface of the base plate 1 to support the bracket 4.

Thereafter, the protruding end of the hydraulic pump 5 is fitted into the other open end of the bracket 4 with a dowel. With this fitting, the input shaft 6 of the hydraulic pump 5 is
Since it is concentric with the output shaft 3 of the motor 2 inside the bracket, the hydraulic pump 5 is fixed to the bracket 4 with bolts, and the load of the hydraulic pump 5 is supported on the base plate by the supporting legs 8, and then installed in advance. The two shafts are integrally connected by the above-mentioned coupling ring 7, and the assembly is completed.

[Effects of the invention] Since this invention is constructed as described above, it has the following effects.

(1) The end face of the hydraulic pump and the end face of the motor are formed to protrude to have the same diameter as the openings at both ends of the bracket, and the open ends of the bracket are fitted to these end faces in the respective grooves, thereby integrating both the motor and the hydraulic pump. Since the motor output shaft and pump input shaft are concentric, coupling work does not require any skill.
Assembling can be performed reliably in a short time without making any work mistakes.

(2) Since the hydraulic pump side of the bracket is supported by the supporting legs, the load of the hydraulic pump on the bracket and motor is reduced, and even when a heavy hydraulic pump is assembled, excessive stress is not applied to the motor side. Even if a general-purpose motor is used for a long period of time, the motor bearings and mounting bolts will not be damaged.

(3) After attaching the bracket to the motor, the length of the supporting legs can be adjusted to firmly support the bracket on the base plate, so the height from the top of the base plate to the axis of the motor can vary. Moreover, since there is no need to make the precision of the mounting surface of the motor and hydraulic pump on the base plate very strict, the cost required for manufacturing the base plate can be reduced.

[Brief explanation of drawings]

The drawings show one embodiment of the hydraulic pump and motor assembly structure according to this invention, in which Fig. 1 is a partially cutaway side view, Fig. 2 is a cross-sectional view taken along the - line, and Fig. 3 is a partially cutaway side view.
The figure is a sectional view taken along the line of FIG. 1... Base plate, 2... Motor, 3... Output shaft, 4
...Bracket, 4a, 4b...Flange, 5...
…Hydraulic pump, 6…Input shaft, 7…Cup ring, 8…Support leg.

Claims (1)

[Scope of utility model registration request] A motor 2 is fixed on one side of the upper surface of the base plate 1 with the output shaft 3 inside, and the input shaft 6 is fixed to the output shaft 3 of the motor 2.
Hydraulic pump 5 installed on the base plate concentrically with
Open both ends concentrically and attach a flange 4 around it.
a, 4b, and a bracket 4 with a length-adjustable support leg 8 attached to the end facing the hydraulic pump, and the end faces of the motor 2 and the hydraulic pump 5 protrude to have the same diameter as the openings at both ends of the bracket. The motor end face 2a and the pump end face 5a are fitted to both open ends of the bracket 4 with respective mark lugs to connect the motor 2.
and a hydraulic pump 5 are integrally connected, and the load of the hydraulic pump 5 is supported on a base plate by the support legs 8.