CN2895610Y - Wall-sawing machine saw-piece protective cover directing mechanism - Google Patents
Wall-sawing machine saw-piece protective cover directing mechanism Download PDFInfo
- Publication number
- CN2895610Y CN2895610Y CN 200620013458 CN200620013458U CN2895610Y CN 2895610 Y CN2895610 Y CN 2895610Y CN 200620013458 CN200620013458 CN 200620013458 CN 200620013458 U CN200620013458 U CN 200620013458U CN 2895610 Y CN2895610 Y CN 2895610Y
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- blade guard
- swing arm
- sawing machine
- saw
- arm
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Abstract
The utility model discloses a wall saw-machine saw-blade shield orientation mechanism, which comprises a machine stand, an arm-swing, a saw-blade shield bracket, and also comprises a compliance arm. The machine stand, the arm-swing, the saw blade shield bracket and the compliance arm form a parallel four-rod mechanism; the machine stand is the fixing-bar in the parallel four-rod mechanism, the arm-swing is the active frame connection rod, the saw blade shield is the connection rod, the compliance arm is the driven frame connection rod. The utility model leaves out planetary gear mechanism, in the adopted parallel four-rod mechanism, the machine stand, the arm-swing, and the saw blade shield bracket are original parts of conventional wall saw-machine, only a compliance arm is added, so the saw blade shield orientation mechanism structure is simplified. At the same time, the structure does not need offset of motor that drives the saw blade to work, the drive power transmission system can be simplified, and the reduction of the links of the drive power transmission chain makes the wall saw-machine structure more compact, the volume smaller, the weight lighter.
Description
Technical field
The utility model relates to a kind of wall sawing machine blade guard attitude reference device, especially a kind of blade guard attitude reference device of swing arm wall sawing machine.
Background technology
The swing arm wall sawing machine utilizes swing arm to swing to carry out the cutting-in feeding.If blade guard is packed in the swing arm and rotates simultaneously with swing arm, the lower plane of protective cover can not be with the work plane keeping parallelism, and protective cover produced together with work plane and interferes and the obstruction feeding when cutting-in was big.Shown in Figure 1 is a kind of protective cover straight-tooth planetary gear auxiliary directional mechanism of conventional hydraulic swing arm wall sawing machine.Among the figure, swing arm 1 is by worm gear 14 driven rotary.Saw blade 3 is driven by swing arm 1 and does the cutting-in feeding.Straight-tooth planetary gear 13 and odd number idler gear 12, a fixing central gear 11 are formed gear pairs, are installed in the inside of swing arm 1.The number of teeth of straight-tooth planetary gear 13 is identical with the number of teeth of fixed center gear 11.Protective cover 2 is to link together with straight-tooth planetary gear 13.When straight-tooth planetary gear 13 and protective cover 2 drove around 11 revolution of fixed center gear by swing arm 1, straight-tooth planetary gear 13 was because the drive of idler gear 12, can produce with the identical but rotation of direction of rotation of swing arm 1 rotational angle.Consequently in fact straight-tooth planetary gear 13 does not rotate in the process of following swing arm 1 motion and has only translation.Because protective cover 2 links together with straight-tooth planetary gear 13, protective cover 2 is also only followed swing arm 1 motion generation translation and is not rotated, thereby reaches the function of auxiliary directional.The shortcoming of this structure is that the central gear of fixing 11 needs to be connected with frame by swing arm 1 centre of gyration, brings difficulty for the active force transmission of wall sawing machine.As shown in the figure, swing arm 1 centre of gyration is occupied by the fixed axis of central gear 11, and the active force motor 4 that drives saw blade 3 work must biasing could be transferred to saw blade 3 through swing arm 1 centre of gyration with power.This just makes that the structure of wall sawing machine complete machine is compact inadequately, has increased the volume and the weight of wall sawing machine.
Summary of the invention
The technical problems to be solved in the utility model provides a kind of wall sawing machine blade guard attitude reference device, adopts this attitude reference device, and the structure of wall sawing machine complete machine is compact more, and volume is littler, weight is lighter.
In order to solve the problems of the technologies described above, the technical solution adopted in the utility model is, a kind of wall sawing machine blade guard attitude reference device, comprise frame, swing arm, blade guard support, also comprise an idle rod, described frame, swing arm, blade guard support and idle rod are formed a parallelogram lindage; At described parallelogram lindage mid frame is fixed bar, and swing arm is a connecting rod for active side link, blade guard support, and idle rod is driven side link.
Above-described wall sawing machine blade guard attitude reference device preferably also comprises the top dead-centre guiding mechanism, and described top dead-centre guiding mechanism comprises the guide strip that is installed in upper rack and is installed in two elastic guides wheels on blade guard support top; The lower plane of guide strip is perpendicular to the connecting rod axis, and the line of two directive wheel top edges is parallel with the lower plane of guide strip; Two directive wheel top edges are in the lower plane contact of parallelogram lindage before top dead center with guide strip.
In the top dead-centre guiding mechanism, described elastic guide wheel can be a rubber wheel, and the angle of two directive wheel top edges swing arm during just with the lower plane contact of guide strip is 10 ± 5 ° of parallelogram lindage before top dead center.
Above-described wall sawing machine blade guard attitude reference device preferably also comprises the bottom dead centre stopping means, stops swing arm to enter bottom dead centre.
The utility model wall sawing machine blade guard attitude reference device adopts frame, swing arm, blade guard support and idle rod to form a parallelogram lindage, can guarantee that the blade guard of blade guard support and installation is thereon done translational motion at work.The utility model has omitted planetary gears, and in the parallelogram lindage that adopts, frame, swing arm, blade guard support all are the original parts of traditional wall sawing machine, have only increased an idle rod, makes blade guard attitude reference device structure obtain simplifying.Simultaneously, this structure no longer needs to drive active force motor 4 biasings of saw blade 3 work, can simplify the transmission system of active force again, and it is compact more that the active force gearing chain ring is reduced the structure that makes the wall sawing machine complete machine less, and volume is littler, weight is lighter.
The utility model such as further employing top dead-centre guiding mechanism and bottom dead centre stopping means can prevent that then parallelogram lindage from moving the uncertain of driven side link in position and link motion direction at fork, guarantees the operate as normal of the utility model at extreme position.
Description of drawings
Below in conjunction with the drawings and specific embodiments the utility model is described in further detail.
Fig. 1 is the structure principle chart of prior art planetary gear type blade guard attitude reference device.
Fig. 2 to Fig. 5 is the kinematic sketch of the utility model blade guard embodiment of attitude reference device parallelogram lindage.
Fig. 6 is the utility model blade guard embodiment of attitude reference device front view of (containing saw blade and protective cover).
Fig. 7 is the front view of the utility model blade guard embodiment of attitude reference device.
Fig. 8 is the stereogram of the utility model blade guard embodiment of attitude reference device.
Fig. 9 is the left view of the utility model blade guard embodiment of attitude reference device.
Figure 10 is the vertical view of the utility model blade guard embodiment of attitude reference device.
Figure 11, Figure 12 are the structural representations of elastic guide wheel.
Figure 13 is the schematic diagram of mechanism of the utility model blade guard attitude reference device.
The specific embodiment
The structure of the utility model blade guard embodiment of attitude reference device such as Fig. 6 be to shown in Figure 13, comprises frame 7, swing arm 1, in order to blade guard support 5 and an idle rod 6 of protective cover 2 to be installed.One end of swing arm 1 is installed on the frame 7 by driven wheel 15 and bearing, and is that 340 ° of rotary oscillations are made at the center with the point of the A on the frame 7, and the other end of swing arm 1 is point articulated at B with the lower end of blade guard support 5; The B point of the lower end of blade guard support 5 still is the output of wall sawing machine active force, and saw blade axis stretches out from here, and saw blade 3 is installed.One end of idle rod 6 is installed on the frame 7, and is that the center rotates with the point of the D on the frame 7, and the other end of idle rod 6 is point articulated at C with the upper end of blade guard support 5.In this mechanism, AB=CD, AD=BC, promptly frame 7, swing arm 1, blade guard support 5 and idle rod 6 are formed a parallelogram lindage.At this parallelogram lindage mid frame 7 is fixed bar, and swing arm 1 is that initiatively side link, blade guard support 5 are connecting rod, and idle rod 6 is driven side link.
We can see in Figure 13, adopt this kind layout, not only the structure of blade guard attitude reference device obtains simplifying, and swing arm 1 centre of gyration is no longer occupied by the fixed axis of prior art central gear 11, the main shaft that drives the active force motor 4 of saw blade 3 work can be directly installed on the centre of gyration of swing arm 1, further simplify the active force transmission system that drives saw blade, the minimizing of active force driving-chain link makes the structure of wall sawing machine complete machine compact more, and volume is littler, weight is lighter.
The basic demand that the parallelogram lindage connecting rod remains translation is in the dead-centre position, and driven side link rotates in the same way with the active side link.In order to prevent that at the swing arm upper dead center position i.e. swing arm rotates to topmost, when four bars of parallelogram lindage were positioned at a straight line, idle rod was reverse in company with the swing arm direction of rotation, and present embodiment also is provided with the top dead-centre guiding mechanism.This top dead-centre guiding mechanism comprises guide strip 9 that is installed in upper rack and two flexible rubber directive wheels 10 that are installed in blade guard support 5 tops by guiding wheel carrier 8; The lower plane of guide strip 9 is perpendicular to the axis BC of connecting rod, and the line of the top edge of two directive wheels 10 is parallel with the lower plane of guide strip 9; The top edge of two directive wheels 10 begins the lower plane contact with guide strip in the position of 10 ° of parallelogram lindage before top dead center, the guiding parallelogram lindage is crossed top dead-centre smoothly.In like manner, the utility model embodiment has also adopted the bottom dead centre stopping means, and totally 20 ° position is provided with block 16 (Fig. 2 Figure 13), prevents that swing arm from entering bottom dead centre about the bottom dead centre of swing arm 1.
Flexible rubber directive wheel 10 can be as shown in figure 11, adopts the wheel rim 101 of metal and the spoke 102 of rubber, also can be as shown in figure 12, and adopting integral body is that the wheel rim of rubber and spoke 103 are with the enough elasticity of assurance directive wheel.Like this, after the lower plane contact of top edge with guide strip 9 of two directive wheels 10, when 5 continuation of blade guard support were up, flexible rubber directive wheel 10 produced distortion, compensates.Can not hinder the proper motion of mechanism because of interference.
The kinematic sketch of the utility model blade guard embodiment of attitude reference device parallelogram lindage such as Fig. 2 are to shown in Figure 5.Initiatively side link 1, connecting rod 5, driven side link 6 and frame 7 are formed parallelogram lindage.In Fig. 2, initiatively the positive and negative 10 degree places of side link 1 bottom dead centre (the directed dead angle of parallel four-bar) has link stopper 16, so initiatively side link 1 can only be done the forward and reverse rotation of 340 degree around the A point, drivening rod 5 and 6 motions of driven side link simultaneously, Fig. 5 has shown another extremity of this mechanism.When active side link 1 rotates to 10 ° of before top dead center (Fig. 3), thereby two elastic guide wheels 10 that are fixed on the connecting rod 5 prevent that with guide strip 9 applyings parallelogram lindage is in Fig. 4 active side link 1 top dead-centre, the moving position of parallelogram lindage fork, the generation of driven side link and link motion direction uncertain condition makes the protected enclosure that is fixed on the connecting rod 5 remain the vertical orientation state.
Claims (4)
1. a wall sawing machine blade guard attitude reference device comprises frame, swing arm, blade guard support, it is characterized in that, also comprises an idle rod, and described frame, swing arm, blade guard support and idle rod are formed a parallelogram lindage; At described parallelogram lindage mid frame is fixed bar, and swing arm is a connecting rod for active side link, blade guard support, and idle rod is driven side link.
2. wall sawing machine blade guard according to claim 1 attitude reference device, it is characterized in that, also comprise the top dead-centre guiding mechanism, described top dead-centre guiding mechanism comprises the guide strip that is installed in upper rack and is installed in two elastic guide wheels on blade guard support top; The lower plane of guide strip is perpendicular to the connecting rod axis, and the line of two directive wheel top edges is parallel with the lower plane of guide strip; Two directive wheel top edges are in the lower plane contact of parallelogram lindage before top dead center with guide strip.
3. wall sawing machine blade guard according to claim 2 attitude reference device, it is characterized in that, described elastic guide wheel is rubber wheel, and the angle of two elastic guide wheel top edges swing arm during just with the lower plane contact of guide strip is 10 ± 5 ° of parallelogram lindage before top dead center.
4. according to the described wall sawing machine blade guard of arbitrary claim attitude reference device in the claim 1 to 3, it is characterized in that, also comprise the bottom dead centre stopping means, stop swing arm to enter bottom dead centre.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620013458 CN2895610Y (en) | 2006-04-07 | 2006-04-07 | Wall-sawing machine saw-piece protective cover directing mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620013458 CN2895610Y (en) | 2006-04-07 | 2006-04-07 | Wall-sawing machine saw-piece protective cover directing mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2895610Y true CN2895610Y (en) | 2007-05-02 |
Family
ID=38065189
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620013458 Expired - Fee Related CN2895610Y (en) | 2006-04-07 | 2006-04-07 | Wall-sawing machine saw-piece protective cover directing mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2895610Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113606308A (en) * | 2021-07-20 | 2021-11-05 | 浙江大学 | Parallelogram mechanism driven by floating gear |
-
2006
- 2006-04-07 CN CN 200620013458 patent/CN2895610Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113606308A (en) * | 2021-07-20 | 2021-11-05 | 浙江大学 | Parallelogram mechanism driven by floating gear |
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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: 20070502 Termination date: 20100407 |