CN203172750U - Gear-and-rack wheel - Google Patents
Gear-and-rack wheel Download PDFInfo
- Publication number
- CN203172750U CN203172750U CN 201320126638 CN201320126638U CN203172750U CN 203172750 U CN203172750 U CN 203172750U CN 201320126638 CN201320126638 CN 201320126638 CN 201320126638 U CN201320126638 U CN 201320126638U CN 203172750 U CN203172750 U CN 203172750U
- Authority
- CN
- China
- Prior art keywords
- tooth bar
- wheel
- big gear
- rack
- nahlock
- 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 provides a gear-and-rack wheel, and belongs to the field of engineering machinery application. The gear-and-rack wheel comprises a power input shaft, a spoke type big gear which sleeves the power input shaft, and multiple rack blocks. The multiple rack blocks are connected mutually, surround the spoke type big gear, and are meshed with the spoke type big gear. By the adoption of a gear-and-rack meshing type caterpillar band structure, the gear-and-rack wheel is simple in structure, easy to manufacture, low in cost, and convenient to maintain. The gear-and-rack wheel can be applied to the fields with special requirements, such as engineering machinery, farm-oriented transportation machinery and military machinery.
Description
Technical field
The utility model relates to a kind of pinion and-rack wheel.
Background technology
The driving that is applied to the various crawlers body of construction machinery and equipment at present generally all is to adopt low-speed big torque motor or special-purpose large speed ratio retarder to drive, a kind of prevailing caterpillar driving device, it is that drive wheel is directly installed on the retarder of large speed ratio, its structure more complicated of the caterpillar driving device of this structure, cost height, and when retarder is damaged, keep in repair cumbersome.
Summary of the invention
At above-mentioned prior art, the technical problems to be solved in the utility model provides a kind of pinion and-rack wheel simple in structure, easy to maintenance.
In order to solve the problems of the technologies described above, the utility model provides a kind of pinion and-rack wheel.It comprises power input shaft, is sheathed on radial big gear wheel, several tooth bar pieces on the power input shaft, and described several tooth bar pieces are connected to each other to be looped around on the described radial big gear wheel and with described radial big gear wheel and mesh.Adopt gear ﹠ rack structure, several tooth bar pieces are connected with each other from beginning to end and are connected into a tooth bar ring, and the tooth bar ring is looped around on the radial big gear wheel and is engaged with, so simple in structure, easy to maintenance.
As further improvement of the utility model, described tooth bar piece both sides respectively are provided with tooth bar anticreep baffle plate.
As further improvement of the utility model, described tooth bar anticreep baffle plate inboard is provided with the anti-inclined to one side block of tooth bar.Adopt " tooth bar anticreep baffle plate, the anti-inclined to one side block of tooth bar and radial big gear wheel " combination make the tooth bar piece as crawler belt stable be flexible being wrapped on the gear mass, also can be tiled in automatically on the road surface, realized rack-and-gear gear motion truly, be subjected to the caterpillar belt structure that has only that condition of road surface influences like this, gear mass just travels all the time in crawler belt inside, be not subjected to the influence of any road conditions, road pavement requires low.
As further improvement of the utility model, described pinion and-rack wheel also comprises steering hardware, described steering hardware comprises: tooth bar piece bottom is provided with circular blind hole, also be provided with from the tangent bolt of described tooth bar piece side axis and described circular blind hole circumference, described circular blind hole built-in one movable nahlock, described movable nahlock is cylindric, one end is provided with annular groove, be used for being fixed on movable nahlock on the bolt of tooth bar piece and movable nahlock can being changeed around the annular groove axle, movable nahlock exceeds the tooth bar piece.Adopt " tooth bar piece and movable nahlock " combination, movable nahlock can change by relative axle with the tooth bar piece, has solved owing to what special construction caused and has turned to problem.
As further improvement of the utility model, described radial big gear wheel adopts radial circular arc spur wheel.The tooth of radial big gear wheel outer most edge and the tooth on the tooth bar piece intermesh, and circular arc straight-tooth flank profil has realized the flatness in the engagement disengaging movement process.
As further improvement of the utility model, the profile of tooth width of described radial big gear wheel is identical with the profile of tooth width of tooth bar piece, and structure is tightr.
Compared to prior art, pinion and-rack wheel of the present utility model adopts gear ﹠ rack structure, and is simple in structure, easy to manufacture, with low cost, easy to maintenance; Adopt " tooth bar piece and movable nahlock " combination to solve since special construction cause turn to problem; Adopt " tooth bar anticreep baffle plate, the anti-inclined to one side block of tooth bar and radial big gear wheel " combination make the tooth bar piece as crawler belt stable be flexible being wrapped on the gear mass, also can be tiled in automatically on the road surface, realized rack-and-gear gear motion truly, like this, be subjected to the caterpillar belt structure that has only that condition of road surface influences, gear mass just travels all the time in crawler belt inside, is not subjected to the influence of any road conditions.
Description of drawings
Fig. 1 is the utility model block diagram;
Fig. 2 is the utility model spatial structure decomposing schematic representation;
Fig. 3 is the utility model middle rack piece combination stereogram;
Fig. 4 turns to the mechanism structure decomposing schematic representation in the utility model;
Fig. 5 is radial big gear wheel block diagram in the utility model;
Fig. 6 is radial big gear wheel front view in the utility model;
Fig. 7 is radial big gear wheel circular arc straight-tooth flank profil enlarged drawing in the utility model.
Each component names is as follows among the figure:
123---the tooth bar piece
1231---circular blind hole
1232---bolt
124---tooth bar anticreep baffle plate
125---tooth bar is prevented inclined to one side block
126---the radial big gear wheel
131---power input shaft
151---movable nahlock
152---annular groove
The specific embodiment
Below in conjunction with accompanying drawing the utility model is described further.
As shown in Figure 1 and Figure 2, the utility model provides a kind of pinion and-rack wheel, it comprises: power input shaft 131, be sheathed on radial big gear wheel 126, several tooth bar pieces 123 on the power input shaft 131, described several tooth bar pieces 123 be connected to each other be looped around on the described radial big gear wheel 126 and with described radial big gear wheel 126 engagements.The long tooth bar cutting that an energy and radial big gear wheel 126 are meshed is divided into several tooth bar pieces 123, each tooth bar piece 123 passes through bearing pin head and the tail coupling link on radial big gear wheel 126, form the tooth bar ring (not shown) that a tooth bar piece 123 is combined into, its total length of long tooth bar is greater than the maximum perimeter of radial big gear wheel 126.Tooth bar piece 123 general shapes are block, and the top be several teeth, and the specification of tooth is identical with the specification of the tooth of the radial big gear wheel 126 at center, and function is the radial big gear wheel 126 formation meshing relations with the center; Tooth bar piece 123 front ends are the design of " protruding " font, and the rear end then is the design of " recessed " font.The side then is equipped with through hole, and the rear end groove of a slice tooth bar piece 123 before the leading portion of back a slice tooth bar piece 123 inserts inserts through hole by bolt then and connects, and finally can connect into some tooth bar pieces 123 the flexible rack ring (not shown) of a similar crawler belt.When radial big gear wheel 126 pressures stand on some tooth bar pieces 123, following these tooth bar piece 123 forward and backward tooth bar pieces 123 closely is tiled on the road surface because of the deadweight reason automatically, make when radial big gear wheel 126 travels forward, all the time there are three tooth bar pieces 123 to be tiled on the road surface, thereby reach radial big gear wheel 126 all the time in the same effect of toothed rack motion, make its motion process stable.
As Fig. 1, Fig. 2, shown in Figure 3, wheelbarrow is in motion process, under the effect of axial force, the tooth bar ring (not shown) that several tooth bar pieces 123 are combined into can depart from radial big gear wheel 126 or come off, for respectively designing a tooth bar anticreep baffle plate 124 in the both sides that occur in tooth bar piece 123 that prevent this situation.The similar equicrural triangle of tooth bar anticreep baffle plate 124 shapes, fillet is all fallen at three angles, all offer through hole at three corners, the dual-side of tooth bar piece 123 also offers two through holes with tooth bar anticreep baffle plate 124 opposite positions relation, adopt the another side of bolt and nut fixed teeth stick 123 and 124, two relative tooth bar anticreep baffle plates 124 of tooth bar anticreep baffle plate also to adopt bolt and nut to interfix.
As Fig. 2, shown in Figure 3, the midway location of tooth bar anticreep baffle plate 124 fixedly has a tooth bar to prevent inclined to one side block 125, the anti-inclined to one side block 125 of tooth bar is shaped as cylindric, be used for guaranteeing the relatively stable of motion process middle gear tooth bar piece unitized construction (being the tooth bar ring) and radial big gear wheel 126, when particularly turning, offset axial power, be unlikely to because steering effort causes the relative displacement on radial big gear wheel 126 and tooth bar ring (not shown) plane.Simultaneously, anti-inclined to one side block 125 another vital function of tooth bar are, when needing to be pulled upwardly after the wheel body of a radial big gear wheel 126 of tooth bar piece 123 experience was pressed, are stuck on the tooth inner edge of radial big gear wheel 126, play a pull-up effect.
As Fig. 1, Fig. 2, shown in Figure 4, wheelbarrow is in motion process, and tooth bar piece 123 contacts with ground, and area of contact is big, causes the difficulty of turning, so designed steering hardware at tooth bar piece 123, makes it easily realize turning to.The realization key that turns to is movable nahlock 151.When wheelbarrow need turn to, there is a movable nahlock 151 to be pressed in ground, this activity nahlock 151 is relative with ground static, but rotates relative motions with tooth bar piece 123 formation of these activity nahlock 151 tops, thereby has realized turning to.Tooth bar piece 123 belows are a circular blind hole 1231, as the placement space of movable nahlock 151, also have the tangent through hole of axis and circular blind hole 1231 circumference from the side, can form after the inserting bolt 1232 active type of movable nahlock 151 is fixed.Install after the movable nahlock 151, tooth bar piece 123 namely is the floor area of movable nahlock 123 with the area of contact on ground.Simultaneously, the bolt 1232 of this place's insertion also is connected with the interference of tooth bar piece 123 for tooth bar anticreep baffle plate 124; Movable nahlock 151 is cylindric, and an end has a ring annular groove 152, and the groove cross section be semicircle, for being fixed on movable nahlock 151 on the tooth bar piece 123 and making the movable nahlock 151 can be around 152 rotations of annular groove, the relative motion when namely turning to.The bottom surface is smooth, be loaded on the tooth bar piece 123 after, can slightly exceed tooth bar piece 123, as turn to and motion process in the part that contacts with ground.
As Fig. 2, Fig. 5, shown in Figure 6, described wheelbarrow wheel theme part also is the big gear wheel centered by the part of whole wheelbarrow wheel maximum, employing be a radial big gear wheel 126.Radial big gear wheel 126 outer most edge are provided with the tooth of a circle special tooth profile, and width is identical with tooth bar piece 123, can with tooth bar piece 123 on tooth mesh, in the pinion and-rack wheel movement, form stable kinematic pair.For the plate structure of load is the thinnest part, be with four slotted holes between radial big gear wheel 126 division centers and its edge, be used for the tie bolt space that 123 combinations (as shown in Figure 3) of tooth bar piece realize stable combination.
As Fig. 5, Fig. 6, shown in Figure 7, the tooth of radial big gear wheel 126 outer most edge and the tooth on the tooth bar piece 123 are meshing with each other, so select for use with a kind of profile of tooth.Because the requirement of function, the selection of profile of tooth are particularly crucial.Owing to there is bigger pressure between the gear, the flatness in the engagement disengaging movement process is very important, thus adopt the compound motion characteristic, and can realize that the circular arc profile that seamlessly transits is the most excellent; Because the characteristic of spur wheel is the most near the characteristic requirement of radial gear, so can select spur wheel; Comprehensive above consideration, described radial big gear wheel 126 adopts radial circular arc spur wheels.
Above content be in conjunction with concrete preferred implementation to further describing that the utility model is done, can not assert that concrete enforcement of the present utility model is confined to these explanations.For the utility model person of an ordinary skill in the technical field, under the prerequisite that does not break away from the utility model design, can also make some simple deduction or replace, all should be considered as belonging to protection domain of the present utility model.
Claims (6)
1. pinion and-rack wheel, comprise power input shaft, be sheathed on radial big gear wheel, several tooth bar pieces on the power input shaft, it is characterized in that: described several tooth bar pieces are connected to each other to be looped around on the described radial big gear wheel and with described radial big gear wheel and mesh.
2. pinion and-rack wheel according to claim 1, it is characterized in that: described tooth bar piece both sides respectively are provided with tooth bar anticreep baffle plate.
3. pinion and-rack wheel according to claim 2 is characterized in that: described tooth bar anticreep baffle plate inboard is provided with the anti-inclined to one side block of tooth bar.
4. according to each described pinion and-rack wheel of claim 1 to 3, it is characterized in that: described pinion and-rack wheel also comprises steering hardware, described steering hardware comprises: tooth bar piece bottom is provided with circular blind hole, also be provided with from the tangent bolt of described tooth bar piece side axis and described circular blind hole circumference, described circular blind hole built-in one movable nahlock, described movable nahlock is cylindric, one end is provided with annular groove, be used for being fixed on movable nahlock on the bolt of tooth bar piece and movable nahlock can being changeed around the annular groove axle, movable nahlock exceeds the tooth bar piece.
5. according to each described pinion and-rack wheel of claim 1 to 3, it is characterized in that: described radial big gear wheel adopts radial circular arc spur wheel.
6. according to each described pinion and-rack wheel of claim 1 to 3, it is characterized in that: the profile of tooth width of described radial big gear wheel is identical with the profile of tooth width of tooth bar piece.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320126638 CN203172750U (en) | 2013-03-20 | 2013-03-20 | Gear-and-rack wheel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320126638 CN203172750U (en) | 2013-03-20 | 2013-03-20 | Gear-and-rack wheel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203172750U true CN203172750U (en) | 2013-09-04 |
Family
ID=49069492
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320126638 Expired - Fee Related CN203172750U (en) | 2013-03-20 | 2013-03-20 | Gear-and-rack wheel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203172750U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108639171A (en) * | 2017-02-06 | 2018-10-12 | 温州泓呈祥科技有限公司 | A kind of crawler driving whell based on guide plate |
| CN108639173A (en) * | 2017-02-06 | 2018-10-12 | 温州泓呈祥科技有限公司 | A kind of crawler driving whell |
-
2013
- 2013-03-20 CN CN 201320126638 patent/CN203172750U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108639171A (en) * | 2017-02-06 | 2018-10-12 | 温州泓呈祥科技有限公司 | A kind of crawler driving whell based on guide plate |
| CN108639173A (en) * | 2017-02-06 | 2018-10-12 | 温州泓呈祥科技有限公司 | A kind of crawler driving whell |
| CN108639174A (en) * | 2017-02-06 | 2018-10-12 | 温州泓呈祥科技有限公司 | A kind of crawler driving whell with block |
| CN108909861A (en) * | 2017-02-06 | 2018-11-30 | 温州泓呈祥科技有限公司 | A kind of driving wheel |
| CN108945128A (en) * | 2017-02-06 | 2018-12-07 | 温州泓呈祥科技有限公司 | A kind of crawler driving whell mechanism based on guide plate |
| CN108945129A (en) * | 2017-02-06 | 2018-12-07 | 温州泓呈祥科技有限公司 | A kind of drive wheel mechanism based on guide plate |
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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: 20130904 Termination date: 20160320 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |