JPH0355956U

JPH0355956U -

Info

Publication number: JPH0355956U
Application number: JP11746589U
Authority: JP
Priority date: 1989-10-05
Filing date: 1989-10-05
Publication date: 1991-05-29

Description

[Brief explanation of drawings]

第１図ないし第５図は本考案の第１の実施例を
示し、第１図は油圧モータおよび減速機等を示す
一部破断の外観図、第２図は第１図中の要部を拡
大して示す断面図、第３図は第２図の右側面図、
第４図はねじ穴を歯溝に合せる前の状態を示す第
３図と同様の側面図、第５図はねじ穴を歯溝と合
せた状態を示す第４図と同様の側面図、第６図は
第２の実施例を示す蓋体等の外観図、第７図およ
び第８図は第３の実施例を示し、第７図は第２図
と同様の断面図、第８図は第７図の右側面図であ
る。２……油圧モータ、３……減速機、４，３１…
…本体ケーシング、４Ａ，３１Ａ……開口部、４
Ｂ，５Ｂ，３２Ｂ……段部、４Ｃ，３２Ｄ……め
ねじ部、４Ｄ，３１Ｄ……内歯、４Ｅ，３１Ｅ…
…歯溝（係止溝）、５，３２……蓋体、５Ａ，３
２Ａ……厚肉部、５Ｃ，３１Ｂ……おねじ部、６
，９，３３……Ｏリング、７，２１……ねじ穴、
８……プラグ、８Ｂ……突起。 Figures 1 to 5 show a first embodiment of the present invention, with Figure 1 being a partially cutaway external view showing the hydraulic motor, speed reducer, etc., and Figure 2 showing the main parts in Figure 1. An enlarged sectional view, Figure 3 is a right side view of Figure 2,
Fig. 4 is a side view similar to Fig. 3 showing the state before the screw hole is aligned with the tooth groove, Fig. 5 is a side view similar to Fig. 4 showing the state where the screw hole is aligned with the tooth groove; Fig. 6 is an external view of the lid body etc. showing the second embodiment, Figs. 7 and 8 show the third embodiment, Fig. 7 is a sectional view similar to Fig. 2, and Fig. 8 is a cross-sectional view similar to Fig. 2. FIG. 7 is a right side view of FIG. 7; 2...Hydraulic motor, 3...Reducer, 4, 31...
...Body casing, 4A, 31A...Opening, 4
B, 5B, 32B...Step part, 4C, 32D...Female thread part, 4D, 31D...Internal teeth, 4E, 31E...
... Tooth groove (locking groove), 5, 32 ... Lid body, 5A, 3
2A...Thick wall part, 5C, 31B...Male thread part, 6
, 9, 33...O ring, 7, 21...screw hole,
8...Plug, 8B...Protrusion.

Claims

[Claims for Utility Model Registration] (1) A main body casing of a reducer, which has an opening at one end and a plurality of locking grooves spaced apart in the circumferential direction on the inner periphery of the opening; In order to cover the opening of the main body casing, a lid is screwed onto the opening and has a screw hole bored at a position facing each locking groove of the main body casing, and a lid is provided in the screw hole of the lid. A lid fixing device for a speed reducer, comprising a plug that is screwed onto the main body casing and whose distal end engages with a locking groove of the main body casing to prevent rotation of the cover relative to the main body casing. (2) a female threaded portion is formed on the inner periphery of the opening in the main body casing, and an annular contact surface is formed between the female threaded portion and the locking groove, with which the back surface of the lid comes into contact;
A lid fixing device for a speed reducer according to claim (1), wherein a male threaded portion is formed on the outer peripheral side of the lid to be screwed into a female threaded portion of the main body casing. (3) A threaded portion is formed on the outer periphery of the opening in the main casing, a female threaded portion is formed in the lid to be screwed into the male threaded portion, and the back surface of the lid is connected to the opening of the main casing. A lid fixing device for a reducer according to claim (1) of the utility model registration, which is in contact with an end surface.