CN209815550U - Improved gear housing of hand-operated hoist - Google Patents
Improved gear housing of hand-operated hoist Download PDFInfo
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- CN209815550U CN209815550U CN201920436388.8U CN201920436388U CN209815550U CN 209815550 U CN209815550 U CN 209815550U CN 201920436388 U CN201920436388 U CN 201920436388U CN 209815550 U CN209815550 U CN 209815550U
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- gear housing
- housing body
- shaft end
- hole
- supporting piece
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Abstract
The utility model discloses a modified hand hoist gear housing belongs to hand hoist and prevents annex technical field. The gear housing comprises a gear housing body and a shaft end supporting piece, wherein the shaft end supporting piece is provided with a through hole for supporting the shaft end, the inner wall of the gear housing body is provided with a positioning shallow groove for mounting the shaft end supporting piece, and the shaft end supporting piece is positioned and arranged in the positioning shallow groove. The utility model discloses abandoned prior art gear housing and need seted up the through-hole to and toward the through-hole pressure equipment cavity axle sleeve, the substitute is equipped with the location shallow slot on the gear housing body, and the axle head supporting member that adds is used for replacing the cavity axle sleeve, makes the axle head supporting member settle in this location shallow slot. Because the gear housing body is free from opening the through hole and is free from pressing the hollow shaft sleeve, the gear housing body can not only prevent water and dust, but also realize high installation efficiency of the short shaft teeth of the existing structure.
Description
[ technical field ] A method for producing a semiconductor device
The utility model relates to a modified hand-drive block gear housing belongs to hand-drive block's the technical field of preventing annex.
[ background of the invention ]
In the prior art, the gear housing is fixed to the side wall panel with a gear reduction mechanism disposed therebetween. The gear housing is positioned at the opposite side of the hand chain wheel mechanism or the hand pulling mechanism, the gear speed reducing mechanism comprises a sheet tooth short shaft component, the inner shaft end and the outer shaft end of a sheet gear shaft of the sheet tooth short shaft component are respectively and rotatably arranged on the side wall plate and the gear housing, specifically, the gear housing is provided with a through hole, the through hole is provided with a hollow shaft sleeve, and the outer shaft end of the short shaft tooth is supported on the gear housing through the hollow shaft sleeve.
By carefully analyzing the above structure, it is easy to find that the following technical disadvantages exist:
the gear housing needs to be provided with a through hole, the hollow shaft sleeve needs to be pressed into the through hole, the sheet gear shaft can be supported on the gear housing, and the assembly efficiency of the sheet gear shaft is influenced by two procedures.
In addition, because the gear housing is provided with the through hole, and a rotating gap exists among the plate gear shaft, the shaft sleeve and the through hole, water liquid and dust easily enter the gear speed reducing mechanism through the rotating gap, so that the gear speed reducing mechanism is rusted, and the transmission performance of the gear speed reducing mechanism is influenced.
[ Utility model ] content
The utility model aims at providing a modified hand-drive block gear housing, but this gear housing not only waterproof liquid, dust, can supply the high-efficient installation of minor axis tooth moreover.
Therefore, the utility model adopts the following technical scheme:
the utility model provides an improved hand hoist gear housing, includes a gear housing body, and its improvement lies in: the gear housing body is provided with a positioning shallow groove for mounting the shaft end supporting piece on the inner wall, and the shaft end supporting piece is positioned and arranged in the positioning shallow groove.
As further improvement and perfection, the utility model discloses still include following technical characterstic:
the gear housing body is not provided with a hole.
Because the gear housing body is not damaged by the opening, the gear housing body can ensure the sealing performance of the outer part of the gear speed reducing mechanism of the existing hand-operated hoist after being fixed on the side wall plate of the hand-operated hoist.
In order to prevent water and dust from permeating into the gap between the gear housing body and the side wall plate, the gear housing body is hermetically fixed on the side wall plate of the hand hoist through a sealing piece.
The sealing element is a nonmetal static sealing gasket.
The utility model has the advantages of as follows and positive effect:
the utility model discloses abandoned prior art gear housing and need seted up the through-hole to and toward the through-hole pressure equipment cavity axle sleeve, the substitute is equipped with the location shallow slot on the gear housing body, and the axle head supporting member that adds is used for replacing the cavity axle sleeve, makes the axle head supporting member settle in this location shallow slot. Because the gear housing body is free from opening the through hole and is free from pressing the hollow shaft sleeve, the gear housing body can not only prevent water and dust, but also realize high-efficiency installation of the gear shaft with the existing structural sheet.
[ description of the drawings ]
Fig. 1 is a schematic structural diagram of the present invention;
FIG. 2 is an external view of the shaft end support of the present invention;
FIG. 3 is a schematic view of the shaft end support structure of the present invention;
fig. 4 is a front view of the gear housing body of the present invention;
fig. 5 is a schematic structural diagram of the present invention assembled on a hand-operated hoist.
[ detailed description ] embodiments
The utility model provides an improved hand hoist gear housing, includes a gear housing body 1, and its improvement lies in: the gear housing body 1 is provided with a shallow positioning groove 10 for mounting the shaft end support 2 on the inner wall, and the shaft end support 2 is positioned and arranged in the shallow positioning groove 10.
The shaft end support 2 is heat treated by quench hardening in place of the conventional hollow sleeve.
The gear housing body 1 is a gear housing body without an opening.
Because the shaft end supporting piece 2 is additionally arranged to replace the traditional hollow shaft sleeve, when the gear housing body 1 is made of materials, light aluminum alloy can be adopted.
Since the gear housing body 1 is not damaged by the opening, the gear housing body 1 can ensure the sealing performance of the exterior of the gear speed reducing mechanism of the existing hand-operated hoist after being fixed on the side wall plate 4 of the hand-operated hoist.
A sealing element 3 is arranged between the gear housing body 1 and the side wall plate 4.
The sealing element 3 is a non-metallic static sealing gasket.
In specific implementation, the nonmetal static sealing gasket is made of butadiene-acrylonitrile rubber.
Referring to fig. 3, the shaft ends of the two pinion pins 51, 52 of the two-bush gear shaft assembly are supported in the through holes 21, 22 of the shaft end support 2, respectively, and the left end of the long shaft 6 is supported in the through hole 23 of the shaft end support 2.
The technical scheme is suitable for lever blocks and chain blocks; fig. 2 shows the gear housing body of the lever block.
Claims (4)
1. The utility model provides an improved hand hoist gear housing, includes a gear housing body, its characterized in that: the gear housing body is provided with a positioning shallow groove for mounting the shaft end supporting piece on the inner wall, and the shaft end supporting piece is positioned and arranged in the positioning shallow groove.
2. The manual hoist gear housing of claim 1, wherein: the gear housing body is not perforated.
3. The hand hoist gear housing according to claim 1 or 2, characterized in that: the gear housing body is hermetically fixed on a side wall plate of the hand hoist through a sealing piece.
4. The hand hoist gear housing of claim 3, wherein: the sealing element is a nonmetal static sealing gasket.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920436388.8U CN209815550U (en) | 2019-03-28 | 2019-03-28 | Improved gear housing of hand-operated hoist |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920436388.8U CN209815550U (en) | 2019-03-28 | 2019-03-28 | Improved gear housing of hand-operated hoist |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209815550U true CN209815550U (en) | 2019-12-20 |
Family
ID=68878249
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920436388.8U Active CN209815550U (en) | 2019-03-28 | 2019-03-28 | Improved gear housing of hand-operated hoist |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209815550U (en) |
-
2019
- 2019-03-28 CN CN201920436388.8U patent/CN209815550U/en active Active
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| GR01 | Patent grant |