CN205114784U - Special speed reducer of construction lifter - Google Patents
Special speed reducer of construction lifter Download PDFInfo
- Publication number
- CN205114784U CN205114784U CN201520866853.3U CN201520866853U CN205114784U CN 205114784 U CN205114784 U CN 205114784U CN 201520866853 U CN201520866853 U CN 201520866853U CN 205114784 U CN205114784 U CN 205114784U
- Authority
- CN
- China
- Prior art keywords
- worm
- worm gear
- speed reducer
- wheel shaft
- special speed
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Abstract
The utility model relates to a special speed reducer of construction lifter, its characterized in that special speed reducer of construction lifter includes box, worm, worm wheel and worm -wheel shaft, the inside snail axle hole that is equipped with of worm wheel, the worm -wheel shaft is equipped with worm wheel portion and bearing portion, snail axle hole's tolerance zone is in under the tolerance zone of worm wheel portion, be interference fit between worm wheel and the worm -wheel shaft, bearing portion locates the both sides of worm wheel portion, bearing portion is used for the suit bearing. The utility model provides a special speed reducer of construction lifter simple structure is light and handy, and the noise is little, and the precision is high, and the practicality is strong.
Description
Technical field
The utility model relates to field of mechanical technique, is specifically related to a kind of Special speed reducer for construction hoist.
Background technology
Reductor is a kind of Poewr transmission mechanism, utilizes the velocity transducer of gear, the revolution of motor (motor) is decelerated to desired revolution, and obtains the mechanism of larger torque.At present quite extensive for the field of application of reductor in the mechanism of transferring power and motion.Its trace almost can be seen in various machine driven system.
The general volume of existing reductor is comparatively large and precision is not high.
Utility model content
In view of this, the purpose of this utility model is to provide a kind of Special speed reducer for construction hoist.
According to Special speed reducer for construction hoist of the present utility model, it is characterized in that described Special speed reducer for construction hoist comprises casing, worm screw, worm gear and worm-wheel shaft, described worm gear inside is provided with worm gear axis hole, described worm-wheel shaft is provided with worm gear part, bearing portion and spline part, the tolerance band of described worm gear axis hole, under the tolerance band of described worm gear part, is interference fit between described worm gear and worm-wheel shaft; Described bearing portion is located at the both sides of described worm gear part, and described bearing portion is used for bearing set.
Preferably, the width of the worm gear part of described worm-wheel shaft is identical with the width of the worm gear axis hole of described worm gear.
Preferably, adopt double screw to connect between described worm gear and described worm-wheel shaft, wherein a ranking is on described worm-wheel shaft, and another ranking is in described worm gear and described worm-wheel shaft intersection.
Preferably, worm gear and the worm screw of described Special speed reducer for construction hoist are circle-arc tooth, and described worm screw is two worm screw, and the number of teeth on described worm gear is 36, and the reduction ratio of described Special speed reducer for construction hoist is 18: 1.
The Special speed reducer for construction hoist structure that the utility model provides is simply light and handy, and noise is little, and precision is high, practical.
Accompanying drawing explanation
By referring to the description of accompanying drawing to the utility model embodiment, above-mentioned and other objects of the present utility model, feature and advantage will be more clear, in the accompanying drawings:
Fig. 1 illustrates the structural representation of Special speed reducer for construction hoist;
Fig. 2 illustrates worm gear cutaway view;
What Fig. 3 illustrated that worm gear coordinates with worm-wheel shaft partly cuts open figure;
Fig. 4 illustrates the left view that worm gear coordinates with worm-wheel shaft.
Detailed description of the invention
Hereinafter with reference to accompanying drawing, various embodiment of the present utility model is described in more detail.In various figures, identical element adopts same or similar Reference numeral to represent.For the sake of clarity, the various piece in accompanying drawing is not drawn in proportion.
As shown in Figure 1, Special speed reducer for construction hoist of the present utility model comprises casing 1, worm screw 4, worm gear 2 and worm-wheel shaft 3.
As shown in Figures 2 and 3, worm screw, worm gear 2 and worm-wheel shaft 3 is provided with in described casing 1.
Described worm gear is arc toothed, and the number of teeth of described worm gear is 36.Described worm gear 2 inside is provided with worm gear axis hole 2a.Described worm-wheel shaft 3 is provided with worm gear part 3a and bearing portion 3b.The width of the worm gear part 3a of described worm-wheel shaft 3 is identical with the width of the worm gear axis hole 2a of described worm gear 2, and the tolerance band of described worm gear axis hole 2a, under the tolerance band of described worm gear part 3a, is interference fit between described worm gear 2 and worm-wheel shaft 3.The both sides of described worm gear part 3a are provided with bearing portion 3b, and described bearing portion 3b is used for bearing set.
The mouth of described worm-wheel shaft 3 is provided with spline 3c and screw thread 3d, described worm-wheel shaft 3 and its be with between animal and adopt spline joint.
As shown in Figure 4, adopt double screw to connect between described worm gear 2 and described worm-wheel shaft 3, wherein first row 301 is positioned on described worm-wheel shaft 3, and second row 302 is positioned at described worm gear 2 and described worm-wheel shaft 3 intersection.The utility model adopts double screw to connect, and object cuts and prevent distortion in order to anti-.
The worm screw of described Special speed reducer for construction hoist is circle-arc tooth worm screw, and described worm screw is two worm screw, and the reduction ratio of described Special speed reducer for construction hoist is 18: 1.
The Special speed reducer for construction hoist structure that the utility model provides is simply light and handy, and noise is little, and precision is high, practical.
Should be noted that, in this article, the such as relational terms of first and second grades and so on is only used for an entity or operation to separate with another entity or operational zone, and not necessarily requires or imply the relation that there is any this reality between these entities or operation or sequentially.And, term " comprises ", " comprising " or its any other variant are intended to contain comprising of nonexcludability, thus make to comprise the process of a series of key element, method, article or equipment and not only comprise those key elements, but also comprise other key elements clearly do not listed, or also comprise by the intrinsic key element of this process, method, article or equipment.When not more restrictions, the key element limited by statement " comprising ... ", and be not precluded within process, method, article or the equipment comprising described key element and also there is other identical element.
Last it is noted that obviously, above-described embodiment is only for the utility model example is clearly described, and the restriction not to embodiment.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here exhaustive without the need to also giving all embodiments.And thus the apparent change of amplifying out or variation be still among protection domain of the present utility model.
Claims (4)
1. a Special speed reducer for construction hoist, it is characterized in that described Special speed reducer for construction hoist comprises casing, worm screw, worm gear and worm-wheel shaft, described worm gear inside is provided with worm gear axis hole, described worm-wheel shaft is provided with worm gear part, bearing portion and spline part, the tolerance band of described worm gear axis hole, under the tolerance band of described worm gear part, is interference fit between described worm gear and worm-wheel shaft; Described bearing portion is located at the both sides of described worm gear part, and described bearing portion is used for bearing set.
2. Special speed reducer for construction hoist according to claim 1, is characterized in that the width of the worm gear part of described worm-wheel shaft is identical with the width of the worm gear axis hole of described worm gear.
3. Special speed reducer for construction hoist according to claim 1, it is characterized in that adopting double screw to connect between described worm gear and described worm-wheel shaft, wherein a ranking is on described worm-wheel shaft, and another ranking is in described worm gear and described worm-wheel shaft intersection.
4. Special speed reducer for construction hoist according to claim 1, it is characterized in that worm gear and the worm screw of described Special speed reducer for construction hoist are circle-arc tooth, described worm screw is two worm screw, the number of teeth on described worm gear is 36, and the reduction ratio of described Special speed reducer for construction hoist is 18: 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520866853.3U CN205114784U (en) | 2015-11-03 | 2015-11-03 | Special speed reducer of construction lifter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520866853.3U CN205114784U (en) | 2015-11-03 | 2015-11-03 | Special speed reducer of construction lifter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205114784U true CN205114784U (en) | 2016-03-30 |
Family
ID=55570410
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520866853.3U Expired - Fee Related CN205114784U (en) | 2015-11-03 | 2015-11-03 | Special speed reducer of construction lifter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205114784U (en) |
-
2015
- 2015-11-03 CN CN201520866853.3U patent/CN205114784U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160330 Termination date: 20171103 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |