CN201909006U - Ratchet gear with ratchet teeth covered with toothed sleeves - Google Patents
Ratchet gear with ratchet teeth covered with toothed sleeves Download PDFInfo
- Publication number
- CN201909006U CN201909006U CN201120006842XU CN201120006842U CN201909006U CN 201909006 U CN201909006 U CN 201909006U CN 201120006842X U CN201120006842X U CN 201120006842XU CN 201120006842 U CN201120006842 U CN 201120006842U CN 201909006 U CN201909006 U CN 201909006U
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- CN
- China
- Prior art keywords
- ratchet
- gear teeth
- ratchet gear
- tooth cover
- covered
- 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
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Abstract
The utility model discloses a ratchet gear with ratchet teeth covered with toothed sleeves, which belongs to the technical field of ratchet mechanisms, and aims to overcome the shortcomings that ratchet teeth and a pawl of an existing ratchet gear are extremely easy to be abraded and short in service life, and the ratchet teeth are frequently cut off or the pawl is frequently broken so that equipment failure is caused, and the like. The ratchet gear comprises a ratchet and a pawl, and the toothed sleeves covering the ratchet teeth are connected with each other by the aid of connecting sheets. The ratchet gear with the ratchet teeth covered with the toothed sleeves is applicable to various ratchet gears.
Description
Technical field
The utility model relates to a kind of ratchet mechanism technology, particularly relates to the ratchet unit that a kind of ratchet gear teeth are covered with the tooth cover.
Background technique
Ratchet mechanism is a kind of driving mechanism that very generally adopts in the machinery, and it is made of the purpose that realizes doing intermittent movement ratchet and pawl, connecting rod etc.Generally, the type of belt drive of ratchet mechanism has two kinds, and a kind of is to drive ratchet by connecting rod to move reciprocatingly, and ratchet is done unidirectional intermittent movement thereby ratchet is stirred the drive of the ratchet gear teeth; Another kind is to drive ratchet by transmission part to do clockwise and counterclockwise rotation off and on, and by the cooperation of the ratchet gear teeth and ratchet, the power that ratchet is rotated passes to ratchet, makes ratchet drive the parts that are connected with it and does intermittent rotation.The characteristic of being transmitted power by ratchet mechanism is determined that the gear teeth of ratchet and ratchet are stressed the most concentrated, and stress form mostly is the shearing force of moment impact.The ratchet mechanism of adapted on the main equipment of industries such as harbour, mine, iron and steel, cement particularly; need the power of transmission huge, stream time is long, and working environment is generally all relatively poor; so; in actual moving process, the ratchet gear teeth and ratchet are easy to be worn, and lack and can't repair again and use working life; have only a whole set of the replacing; user cost is very high, also need shut down stopping production, influences the output value.Even more serious is, the situation that the ratchet gear teeth are cut off or ratchet is fractureed also usually occurs, and causes equipment failure, and not only maintenance expenses is very high, also can upset the entire equipment running state, and loss will be bigger.
Summary of the invention
The purpose of this utility model provides the ratchet unit that a kind of ratchet gear teeth are covered with the tooth cover, and the ratchet gear teeth and the ratchet that overcome present ratchet unit are easy to be worn, and working life is short; Usually occur also that the ratchet gear teeth are cut off or ratchet is fractureed, cause deficiencies such as equipment failure.
The utility model is achieved by following technical proposals.
The utility model comprises ratchet and pawl, is covered with the tooth cover on the described ratchet gear teeth, is connected by connecting sheet between each tooth cover.Such design, make the not directly contact mutually of the pawl-and-gearing gear teeth, concerning the ratchet gear teeth, the surface can not be subjected to the direct impact of ratchet and friction repeatedly and damage, simultaneously, ratchet is to buffering and the dispersion through the tooth cover of the impact force of the ratchet gear teeth, makes that suffered shearing force greatly alleviates on the ratchet gear teeth unit area, avoided being cut off possibility effectively.Because it is connected by connecting sheet between each tooth cover, each tooth cover is connected to an integral body, more convenient quick when maintenance is changed.
It is solid and reliable for tooth is enclosed within the using process, tooth cover described in the utility model fits in the front flank and the rear flank of the described ratchet gear teeth, described connecting sheet fits in the surface of the inner ring between the ratchet gear teeth, and the width of described tooth cover and connecting sheet equates with the width of the described ratchet gear teeth.Simultaneously, tooth described in the utility model cover and connecting sheet with material selection phosphor-copper or mild steel, the former is applicable to the less situation of power that ratchet unit transmits, the latter is applicable to the bigger situation of power that ratchet unit will transmit.Design planning by existing present technique field, the surface hardness of described tooth cover will be lower than the surface hardness of ratchet, so just can slow down the surface abrasion of ratchet effectively, the buffer function that while also overlaps because of tooth, the impact force that is subjected on the ratchet unit area is greatly alleviated, the possibility of having avoided ratchet to be fractureed effectively.
Against existing technologies, the beneficial effects of the utility model are:
Described tooth nested structure is simple, cheap, and maintenance is changed convenient, has prolonged the working life of ratchet unit, and user cost greatly reduces.
Can slow down the ratchet gear teeth and the suffered impact force of ratchet effectively, avoid the mechanical accident that is caused because of the fracture of the gear teeth and ratchet.
Description of drawings
Fig. 1 is a structural representation of the present utility model, and Fig. 2 is the schematic representation of described tooth cover as parts.Among the figure: 1, ratchet, 2, ratchet, 3, the tooth cover, 4, connecting sheet.
Embodiment
The utility model will be further described below in conjunction with accompanying drawing and embodiment.
At first, shape and size according to the gear teeth and the inner ring of ratchet 1, go out the single parts that tooth cover 3 and connecting sheet 4 fuse with suitable processes, then this parts insert on the gear teeth and inner ring of ratchet 1, can adopt welding or adhesive technology to make to splice more firm.After coming into operation, ratchet 2 just no longer contacts the gear teeth of ratchet 1, but contacts with the gear teeth by tooth cover 3, and the ratchet gear teeth are well protected.Through the use of a repair cycle, tooth cover 3 normally be may wear to when needing to change, and is folded down together with connecting sheet 4 as long as old tooth is overlapped 3, changes new.Folding dress operation only needs the very short time, spend also very low.
Claims (4)
1. ratchet gear teeth are covered with the ratchet unit that tooth overlaps, and comprise ratchet and pawl, it is characterized in that, are covered with the tooth cover on the described ratchet gear teeth, are connected by connecting sheet between each tooth cover.
2. a kind of ratchet gear teeth according to claim 1 are covered with the ratchet unit of tooth cover, it is characterized in that, described tooth cover fits in the front flank and the rear flank of the described ratchet gear teeth, described connecting sheet fits in the surface of the inner ring between the ratchet gear teeth, and the width of described tooth cover and connecting sheet equates with the width of the described ratchet gear teeth.
3. a kind of ratchet gear teeth according to claim 1 are covered with the ratchet unit of tooth cover, it is characterized in that, the material of described tooth cover and connecting sheet adopts phosphor-copper.
4. a kind of ratchet gear teeth according to claim 1 are covered with the ratchet unit of tooth cover, it is characterized in that, the material of described tooth cover and connecting sheet adopts mild steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120006842XU CN201909006U (en) | 2011-01-10 | 2011-01-10 | Ratchet gear with ratchet teeth covered with toothed sleeves |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120006842XU CN201909006U (en) | 2011-01-10 | 2011-01-10 | Ratchet gear with ratchet teeth covered with toothed sleeves |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201909006U true CN201909006U (en) | 2011-07-27 |
Family
ID=44301209
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120006842XU Expired - Fee Related CN201909006U (en) | 2011-01-10 | 2011-01-10 | Ratchet gear with ratchet teeth covered with toothed sleeves |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201909006U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102141135A (en) * | 2011-01-10 | 2011-08-03 | 宣伯民 | Ratchet device with ratchet gear teeth equipped with tooth sleeves |
-
2011
- 2011-01-10 CN CN201120006842XU patent/CN201909006U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102141135A (en) * | 2011-01-10 | 2011-08-03 | 宣伯民 | Ratchet device with ratchet gear teeth equipped with tooth sleeves |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110727 Termination date: 20120110 |