CN210264695U - Rocker arm mechanism and cutting machine with same - Google Patents

Abstract

The utility model provides a rocker arm mechanism, including support, supporting component, rocking arm and swing driver part, be provided with slider and slide driver part on the rocking arm, it is connected with the sprocket to rotate on the slider, supporting component includes backup pad and a plurality of round pin post, each the round pin post be convex arrange form with sprocket complex arc chain row. The utility model discloses provide a cutting machine with above-mentioned mechanism simultaneously. The utility model discloses utilize the slip driver part to compress tightly the chain tooth of sprocket and realize the locking to the rocking arm on the arc chain row of support component, the phenomenon of skidding is difficult for appearing, support stability is relatively better, simultaneously slip driver part's holding power can decompose on support component and the support, support component non-deformable, the antitorque performance of support rigidity and rocking arm is higher, in addition, the rocking arm sprocket can roll for arc chain row when the swing, the swing is comparatively smooth and easy and wearing and tearing minimum, be applied to precision and the stability that the cutting machine can effectively ensure the cutting.

Description

Rocker arm mechanism and cutting machine with same

Technical Field

The utility model relates to a mechanical swing mechanism and cutting machine, especially a rocker mechanism and have cutting machine of this mechanism.

Background

The traditional method for mining the mine stones usually adopts methods such as blasting, drilling and arranging hole expansion or manual ditching, and is gradually replaced by a mobile mine stone cutter due to low production efficiency and waste of stone resources.

The feeding and the back-up action of saw bit are controlled to current mine building stones cutting machine adopts column type elevation structure usually, chinese utility model patent that the publication number is CN202922761U discloses a mine building stones cutting machine of double knives formula of directly rising etc. like the grant, this kind of column type elevation structure holds the stand in order to realize raising and lowering functions with the help of the axle sleeve, under the effect of multiple factors such as the centrifugal force of expend with heat and contract with cold and saw bit, the problem that the axle is locked on the stand or the cooperation between axle sleeve and the stand is too pine can appear, the former can lead to raising and lowering functions to be difficult to realize, need shut down the maintenance, influence production efficiency, the latter vibrates easily, influence the saw bit life-span.

The patent of the Chinese utility model with the publication number of CN201443397U discloses a stone sawing machine for mine, the rocker arm type lifting structure is adopted to control the feeding and retracting actions of the saw blade, so that the problems are effectively solved, however, because the locking device for supporting the rocker arm (or called as cutting arm) is realized mainly by the friction force between the telescopic rod and the side wall of the slideway, the phenomenon of slipping is easy to occur, namely, the support stability is relatively poor, thereby influencing the feeding amount of the saw blade, and simultaneously, because the support force of the telescopic rod completely acts on the side wall of the slideway, the side wall of the slideway is easy to deform, further influencing the locking force and increasing the probability of the occurrence of the slipping phenomenon, in addition, when the rocker arm swings, the telescopic rod is easy to rub the side wall of the slideway, not only is the smoothness of the swinging easy to influence, but also the abrasion of the telescopic rod is accelerated, and the probability of the slipping phenomenon is increased by the abrasion of the telescopic rod.

In view of the above, the applicant has made intensive studies on a swing arm mechanism and a cutting machine having the same, and has made the present invention.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a relatively better and comparatively smooth and easy rocker mechanism of swing of support stability and have the cutting machine of this mechanism.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a rocker arm mechanism, includes that support, supporting component, one end rotate to be connected rocking arm on the support and be used for the drive rocking arm wobbling swing drive unit, sliding connection has the slider on the rocking arm, just be provided with on the rocking arm and be used for the drive the slider for the gliding slide drive unit of rocking arm, it is connected with the sprocket to rotate on the slider, supporting component includes backup pad and a plurality of mutual parallel arrangement and equidistant the laying in the backup pad round pin post, each round pin post be convex arrange form with sprocket complex arc chain row, the center pin of arc chain row with the rocking arm with rotation connecting axle coaxial arrangement between the support.

As an improvement of the present invention, the sliding direction of the sliding member is the rocker arm and the rotation connecting shaft between the supports and the length direction of the connecting line between the center shafts of the sprockets.

As an improvement of the present invention, the sliding member and the sliding driving member are respectively provided with two or more than two, and each of the sliding member and each of the sliding driving member are engaged with each other in a one-to-one manner.

As an improvement of the present invention, the supporting plates have two, and the two supporting plates are respectively located at both ends of the pin.

As an improvement of the utility model, the support component still includes that a plurality of mutual parallel arrangement and equidistant lay in spliced pole in the backup pad, each the spliced pole with round pin post staggered arrangement.

As an improvement of the utility model, the sprocket is a double sprocket, and this double sprocket includes two parallel arrangement's wheel body and connects two connecting rod between the wheel body.

As an improvement of the utility model, the slide driving part include the piston rod with the length direction parallel arrangement's of rocking arm slip hydro-cylinder and fixed connection are in push rod on the piston rod of slip hydro-cylinder, the push rod is Y shape pole, just the Y shape upper end orientation of Y shape pole the connecting rod.

As an improvement of the utility model, the slide driving part include the piston rod with the length direction parallel arrangement's of rocking arm slip hydro-cylinder and fixed connection are in push rod on the piston rod of slip hydro-cylinder, the push rod orientation the one end of connecting rod is provided with the arc and pushes away the top surface, the arc pushes away the radius that the top surface is less than the radius of connecting rod.

As an improvement of the utility model, the chain wheel is provided with an encoder.

As an improvement of the present invention, the slider is provided with a return spring for pushing the slider toward the direction away from the supporting member.

As an improvement of the utility model, the swing driving part comprises a piston rod connected to a swing oil cylinder on the rocker arm.

As an improvement of the utility model, the support is provided with a first mounting plate, the first mounting plate is provided with a first mounting hole, the rocker arm is provided with a second mounting plate which is arranged in parallel with the first mounting plate, the second mounting plate is provided with a second mounting hole which is coaxially arranged with the first mounting hole, the first mounting hole and the second mounting hole are inserted with a same sleeve, a locking bolt is inserted in the sleeve, the locking bolt is spirally connected with a first nut and a second nut which are mutually propped against each other, the sleeve overcoat is equipped with and is located lock bolt's nut with the second mounting panel or first gasket between the first mounting panel, be located first mounting panel with second gasket between the second mounting panel and be located first nut with first mounting panel or third gasket between the second mounting panel.

As an improvement of the utility model, first nut and/or tightly decide the screw hole has radially been seted up to the second nut, tightly decide screw hole internal screw thread connection has set screw, set screw with the centre gripping has copper gasket or flexible glue piece between the locking bolt.

The cutting machine with the rocker mechanism comprises a rack, wherein the rocker mechanism is arranged on the rack, and a saw blade is arranged on the rocker mechanism.

Adopt above-mentioned technical scheme, the utility model discloses following beneficial effect has:

1. through setting up the supporting component, slip driver part and sprocket, utilize the chain tooth that slip driver part compressed tightly the sprocket to realize the locking to the rocking arm on the arc chain row of supporting component, the phenomenon of skidding does not easily appear, it is relatively better to support stability, simultaneously slip driver part's holding power can decompose on supporting component and the support, supporting component non-deformable, the antitorque performance of support rigidity and rocking arm is higher, in addition, the rocking arm sprocket can roll for arc chain row when the swing, the swing is comparatively smooth and easy and wearing and tearing are minimum, be applied to precision and the stability that the cutting machine can effectively ensure the cutting.

2. Through setting up the spliced pole, help improving the rigidity of support component, further avoid the support component to warp.

3. The utility model discloses connection structure between support and the rocking arm that adopts helps avoiding the rocking arm axis drunkenness or skew to appear in the use, and cutting accuracy is higher relatively.

Drawings

FIG. 1 is a schematic structural view of a cutting machine according to a first embodiment, with a saw blade omitted;

fig. 2 is a schematic structural view of the cutting machine according to the first embodiment without parts such as a frame;

FIG. 3 is a schematic structural view of a rocker mechanism according to a first embodiment;

FIG. 4 is a schematic view of the engagement structure of the sprocket and the curved chain row in the first embodiment;

FIG. 5 is a schematic view showing a structure of a chain wheel and a slide cylinder according to the first embodiment;

FIG. 6 is a schematic structural view of a sprocket position according to one embodiment;

FIG. 7 is an exploded view showing a coupling structure between the swing arm and the carrier in accordance with the first embodiment;

fig. 8 is a schematic structural view of the cutting machine according to the second embodiment without parts such as a frame.

The corresponding designations in the figures are as follows:

100-a frame; 110-a slide rail;

120-a slide base; 130-a locking mechanism;

200-a rocker arm mechanism; 210-a support;

211-a first mounting plate; 212-first mounting hole;

213-a sleeve; 214-a locking bolt;

215-a first nut; 216-a second nut;

217-a first gasket; 218-a second gasket;

219 — third gasket; 220-a rocker arm;

221-a second mounting plate; 222-a second mounting hole;

223-set screws; 224-copper shim or soft gel;

225-a sprocket; 225 a-encoder;

225 b-a return spring; 225 c-a reset bolt;

226-a slide; 226 a-a U-shaped frame;

227-a slide drive member; 228-a sliding cylinder;

229-a push rod; 230-a wobble drive member;

240-a support member; 241-a support plate;

242-pins; 243-connecting column;

300-synchronous belt speed reducing mechanism; 310-a scaffold;

320-a motor; 321-an input pulley;

330-output rod; 331-an output pulley;

340-a transmission assembly; 341-transmission rod;

342-a drive pulley; 350-a sliding tensioning assembly;

360-input synchronous belt; 370-output synchronous belt;

400-a saw blade; 500-running gear.

Detailed Description

The invention will be further described with reference to the accompanying drawings and specific embodiments:

the first embodiment.

As shown in fig. 1 to 7, the present embodiment provides a cutting machine for cutting mine stones, which has a swing arm mechanism 200 and a synchronous belt speed reducing mechanism 300, and thus, the cutting machine of the present embodiment may also be a cutting machine having a swing arm mechanism or a cutting machine having a synchronous belt speed reducing mechanism, and at the same time, the cutting machine may also be a double-or multi-blade cutting machine with an adjustable cutting pitch. Further, since the rocker mechanism 200 and the timing belt reduction mechanism 300 can be used for other devices as well, the present embodiment also substantially provides a rocker mechanism 200 and a timing belt reduction mechanism 300.

It should be noted that, since the saw blade used in the cutting machine for cutting mine stones is generally large, the volume thereof is also relatively large, that is, it is a large-sized cutting machine, but it is also possible to obtain a small-sized cutting machine by reducing the size thereof without changing the structure according to actual needs.

Specifically, the cutting machine provided by the present embodiment includes a rack 100, a rocker arm mechanism 200 and a synchronous belt speed reducing mechanism 300, wherein the rocker arm mechanism 200 is directly or indirectly disposed on the rack 100, that is, the rocker arm mechanism 200 is disposed on the rack 100, the synchronous belt speed reducing mechanism 300 is indirectly disposed on the rack 100 by being disposed on the rocker arm mechanism 200, that is, the synchronous belt speed reducing mechanism 300 is disposed on the rack 100, a saw blade 400 is rotatably connected to an output rod 330 of the synchronous belt speed reducing mechanism 300, that is, the saw blade 400 is indirectly disposed on the rocker arm mechanism 200 by being connected to the output rod 330 by transmission, that is, the saw blade 400 is disposed on the rocker arm mechanism 200. The structure of the saw blade 400 and the connection structure between the saw blade and the output rod 330 are the same as those of the traveling mechanism used in the conventional mine stone cutting machine, and are not important in the present embodiment, and thus, will not be described in detail.

The frame 100 is provided with a traveling mechanism 500, and the traveling mechanism 500 has the same structure as that of a conventional mine stone cutter, and is not a focus of the embodiment and will not be described in detail. The rack 100 is further provided with a slide rail 110, the slide rail 100 is generally horizontally arranged, and more than two slide carriages 120 are slidably connected to the slide rail 100, although the specific number of the slide carriages 120 may be set according to actual needs, and even only one slide carriage 120 may be provided. For convenience of description, two sliders 120 are exemplified in the present embodiment. Each slide 120 is provided with a locking mechanism 130 for fastening the corresponding slide 120 to the slide rail 110, the locking mechanism 130 may be a conventional bolt locking mechanism, preferably, in this embodiment, the locking mechanism 130 is a locking cylinder having a cylinder body fixedly connected to the corresponding slide 120, a piston rod of the locking cylinder faces the slide rail 110 and is arranged perpendicular to the slide rail 110, the fastening connection between the slide 120 and the slide rail 110 is realized by pressing the piston rod of the locking cylinder against the slide rail 110, and when the piston rod of the locking cylinder retracts, the slide 120 can slide relative to the slide rail 110 by an external driving force (such as an operator's hand, etc.), and compared with the conventional bolt locking mechanism, it is easier to realize automatic control.

The swing arm mechanism 200 includes supporting bases 210 respectively fixedly connected to the sliding bases 120, swing arms 220 respectively rotatably connected to the supporting bases 210, and swing driving members 230 respectively for driving the swing arms 220 to swing, wherein the swing driving members 230 may be conventional members, such as a push rod motor, etc., and in this embodiment, the swing driving members 230 include swing cylinders having piston rods rotatably connected to the swing arms 220, and cylinder bodies of the swing cylinders are rotatably connected to the corresponding sliding bases 120. It should be noted that, when the cutting machine does not need to adjust the position of the saw blade 400, the slide seat 120 and the slide rail 110 may not be provided, and the support 210 is fixedly connected to the frame 100.

A saw blade 400 is provided on each rocker arm 220 at an interval through a timing belt speed reducing mechanism 300, the saw blades 400 are arranged in parallel, and the saw blades 400 are arranged perpendicular to the slide rail 110. Like this, the adjustment of saw bit 400 position can be realized for the position of slide rail 110 to the accessible adjustment slide 120, and then realizes the adjustment to the cutting interval, effectively solves among the prior art because saw bit 400 position relatively fixed leads to finely tune the position of saw bit 400 and need move the problem that whole frame and the interval between the saw bit 400 can not be adjusted, and production efficiency is higher relatively and it is comparatively convenient to use. It should be noted that, since the number of the sliders 120 and the number of the saw blades 400 correspond to each other, when there is only one slider 120, there is only one saw blade 400, the cutting machine is a single-blade cutting machine, when there are two sliders 120, there are two saw blades 400, the cutting machine is a double-blade cutting machine, when there are a plurality of sliders 120, there are a plurality of saw blades 400, and the cutting machine is a multiple-blade cutting machine.

Since the saw blade 400 is located on the swing arm 220, the feeding and retracting actions of the saw blade 400 can be controlled by the swing of the swing arm 220, if the swing arm 220 moves or shifts along the rotation axis thereof during the swing process, which easily causes damage to the saw blade 400, in order to overcome this problem, the present embodiment optimizes the connection structure between the swing arm 220 and the support 210, since the connection structure between each swing arm 220 and the corresponding support 210 is the same, and here, the connection structure between one swing arm 220 and the corresponding support 210 is used for illustration, as shown in fig. 6, the support 210 is provided with a first mounting plate 211, which can be fixedly connected or integrally connected, the first mounting plate 211 is provided with a first mounting hole 212, the swing arm 220 is provided with a second mounting plate 221 arranged parallel to the first mounting plate 211, which can also be fixedly connected or integrally connected, the second mounting plate 221 is provided with a second mounting hole 222 arranged coaxially with the first mounting hole 212, the same sleeve 213 is inserted into the first mounting hole 212 and the second mounting hole 222, the lock bolt 214 is inserted into the sleeve 213, the first nut 215 and the second nut 216 are screwed onto the lock bolt 214, the first nut 215 and the second nut 216 abut against each other, and the screw thread directions of the first nut 215 and the second nut 216 are the same, which helps to avoid the nut from loosening, the sleeve 213 is sleeved with a first gasket 217 between the nut of the lock bolt 214 and the second mounting plate 221 or the first mounting plate 211, a second gasket 218 between the first mounting plate 211 and the second mounting plate 221, and a third gasket 219 between the first nut 215 and the first mounting plate 211 or the second mounting plate 221, both ends of the sleeve 213 preferably do not penetrate through the inner hole of the first gasket 217 or the third gasket 219, so as to avoid the nut of the lock bolt 214 or the first nut 215 from compressing the corresponding gasket, and, of course, when in actual use, due to dimensional tolerances and the like, the first washer 217 and/or the third washer 219 may not be in contact with the barrel 213, but rather may be located in the direction of the end of the barrel 213, i.e. it may be indirectly arranged outside the barrel 213 by being arranged on the locking bolt 214.

Preferably, the first nut 215 and/or the second nut 216 have/has radially been seted up tight screw hole, this tight screw hole communicates with the screw hole of the nut that corresponds, tight screw hole internal screw thread is connected with set screw 223, clamping has copper gasket or flexible glue piece 224 between set screw 223 and the lock bolt 214, accessible set screw 223 realizes the fastening of the nut that corresponds and lock bolt 214 like this, further prevent that the nut is not hard up, copper gasket or flexible glue piece 224's existence helps avoiding set screw 223 to destroy the external screw thread of lock bolt 214 in locking process simultaneously.

As shown in fig. 1 to 5, the swing arm mechanism 200 further includes a support member 240 fixedly connected to the frame 100, the support member 240 is used to support an end of the swing arm 220 away from the support base 210, so as to ensure the precision and stability of cutting, the number of the support members 240 may be only one, that is, one support member 240 is used to support all the swing arms 220, or the number of the support members 240 may be the same as the number of the swing arms 220 and arranged one-to-one, that is, each support member 240 supports only one swing arm 220, in this embodiment, the latter structure is used. The structure of each supporting component 240 is the same, and here, the structure of one of the supporting components 240 is taken as an example for description, the supporting component 240 includes a supporting plate 241 fixedly or integrally connected to the frame 100 and a plurality of pins 242 arranged in parallel and at equal intervals on the supporting plate 241, the pins 242 are arranged in parallel with the sliding rail 110, each pin 242 is arranged in an arc shape to form an arc-shaped chain row matched with a chain wheel 225 mentioned below, and the central axis of the arc-shaped chain row is arranged coaxially with the rotation connecting axis between the rocker arm 220 and the support 210 to ensure that the rocker arm 220 is always located in the radial direction of the arc-shaped chain row; preferably, there are two support plates 241, two support plates 241 are respectively located at two ends of each pin 242 to ensure that two ends of each pin 242 can be supported by the corresponding support plate 241, in addition, the support member 240 further includes a plurality of connecting posts 243 arranged in parallel and at equal intervals on the support plate 241, each connecting post 243 is also located between two support plates 241, and each connecting post 243 and each pin 242 are arranged in a staggered manner, of course, each connecting post 243 is also arranged in an arc shape, the arc formed by the arrangement is coaxial with the central axis of the arc-shaped chain row, and the radius of the arc formed by the arrangement is larger than that of the arc-shaped chain row, which helps to improve the rigidity of the support member 240 and further avoids the deformation of the support member 240.

Preferably, in the present embodiment, the sliding travel of the sliding base 120 is less than or equal to the length of the pin 242, so as to avoid the problem that the sprocket 225 is separated from the corresponding arc-shaped chain row, which will be mentioned later.

The rocker arm 220 is slidably connected with a sliding element 226, specifically, in this embodiment, the rocker arm 220 is provided with a sliding slot, the sliding element 226 is a sliding rod inserted in the sliding slot and capable of sliding relative to the sliding slot, a cross section of the sliding rod is waist-shaped, and a width of the waist is adapted to a slot width of the sliding slot, so as to achieve the sliding connection of the sliding element 226, in this embodiment, there is only one sliding element 226, and a sliding direction of the sliding element 226 is the same as a length direction of the rocker arm 220. In addition, the above-mentioned chain wheel 225 is rotatably connected to the sliding member 226, and the connection between the chain wheel 225 and the sliding member 226 is realized by sleeving the chain wheel 225 on the sliding rod, but a bearing may be arranged between the chain wheel 225 and the sliding rod according to the actual situation. Preferably, the sprocket 225 is a double sprocket comprising two wheels arranged in parallel and a connecting rod connected between the two wheels. It should be noted that the swing arm 220 may be a straight arm, or may be a curved arm or a special-shaped arm (e.g., triangular shape), and when the swing arm 220 is a curved arm or a special-shaped arm, the length direction thereof is the length direction of a connection line (which is perpendicular to the corresponding axis) between the rotation connecting axis between the swing arm 220 and the support 210 and the central axis of the sprocket 225.

The rocker arm 220 is provided with a sliding driving component 227 for driving the sliding part 226 to slide relative to the rocker arm 220, the sliding driving component 227 can be a conventional component, such as a push rod motor, in the present embodiment, the sliding driving component 227 comprises a sliding cylinder 228 with a piston rod arranged parallel to the length direction of the rocker arm 220 and a push rod 229 fixedly connected to the piston rod of the sliding cylinder 228, the push rod 229 pushes the chain wheel 225 and the sliding part 226 to slide together, in order to improve the mechanical stability, in the present embodiment, two push rod structures are provided, the first structure is that the push rod 229 is a Y-shaped rod, and the upper Y-shaped end of the Y-shaped rod faces a connecting rod of the double-row chain wheel, so that two-point contact rather than single-point contact between the push rod 229 and the connecting rod; in the second structure, an arc-shaped pushing top surface is arranged at one end of the push rod 229, which faces the connecting rod of the double-row sprocket, the concave side of the arc-shaped pushing top surface faces the double-row sprocket, the radius of the concave side of the arc-shaped pushing top surface is smaller than that of the connecting rod of the double-row sprocket, and meanwhile, on the axial section of the push rod 229, the connecting line between the arc center of the arc-shaped pushing top surface and the center of the connecting rod of the double-row sprocket and the axis of the push rod 229 are positioned on the same straight line, so that two-point contact between the push rod 229 and the. During the use, utilize the chain tooth of slip drive unit 227 with sprocket 225 to compress tightly the realization to the locking of rocking arm 220 on the arc chain row of support unit 240, the phenomenon of skidding is difficult for appearing, support stability is relatively better, simultaneously, the holding power of slip drive unit 227 can decompose on support unit 240 and support 210, support unit 240 non-deformable, support rigidity and the torsional properties of rocking arm are higher, in addition, sprocket 225 can roll for the arc chain row when the rocking arm 220 swings, it is comparatively smooth and easy and wearing and tearing minimum to swing, can effectively ensure the precision and the stability of cutting.

Preferably, the swing arm 220 is provided with a U-shaped frame 226a with an opening facing the support member 240, the U-shaped frame 226a may be a part of the swing arm 220, or may be fixedly connected to the swing arm 220, the U-shaped side wall of the U-shaped frame 226a is respectively provided with a sliding slot, two ends of the sliding rod (i.e. the sliding piece 226) are respectively inserted into the corresponding sliding slots, so as to achieve the sliding connection, the sprocket 225 is simultaneously inserted into the U-shaped slot of the U-shaped frame 226a, and at the same time, the sprocket 225 is provided with an encoder 225a for detecting the number of rotations of the sprocket 225, so as to calculate the displacement of the sprocket 225 in the vertical direction according to the number of rotations and the size specification of the sprocket 225, and further obtain the amount of movement of the saw blade 400 in the vertical direction, so as to solve the problem that the lifting trajectory of the saw blade 400 is arc-shaped and the vertical amount of movement cannot be, this is not the focus of the present embodiment and will not be described in detail here. In addition, in order to ensure that the sprocket 225 is reset after the movable driving member 227 is reset, in this embodiment, the sliding member 226 is provided with a reset spring 225b for pushing the sliding member 226 away from the supporting member 240, specifically, the U-shaped frame 226a is provided with two threaded holes at positions corresponding to the respective sliding grooves, the two threaded holes are communicated with the corresponding sliding grooves, that is, the two threaded holes are arranged perpendicular to the sliding rod and both displace the sliding rod toward one side of the supporting member 240, two reset bolts 225c are respectively and spirally connected in the two threaded holes, two reset springs 225b are respectively inserted in the two threaded holes, one end of each reset spring 225b abuts against the corresponding reset bolt 225c, and the other end abuts against the sliding rod, so that after the driving member 227 is reset, the sliding rod can be reset under the action of the reset spring 225c, and further drives the sprocket 225 to reset, moreover, the pretightening force of the reset spring 225b can be adjusted by adjusting the depth of the reset bolt 225c penetrating into the threaded hole.

The synchronous belt speed reducing mechanism 300 is disposed on the swing arm 220 of the swing arm mechanism 200, that is, the swing arm 220 is disposed with the synchronous belt speed reducing mechanism 300, the synchronous belt speed reducing mechanism 300 includes a bracket 310 fixedly or integrally connected to the swing arm 220, a motor 320 fixedly or slidably connected to the bracket 310 of the casing, an output rod 330 rotatably connected to the bracket 310, an input pulley 321 fixedly connected to an output shaft of the motor 320, an output pulley 331 fixedly connected to the output rod 330, and a transmission assembly 340 disposed on the bracket 310, wherein in the present embodiment, the swing arm 220 and the bracket 310 are integrally connected, that is, both are two parts of the same triangular frame, further, in the present embodiment, the casing of the motor 320 is slidably connected to the bracket 310, specifically, the motor 320 is connected to the bracket 310 through a sliding tensioning assembly 350, the sliding tensioning assembly 350 includes a carriage slidably connected to the bracket 310 and a adjuster for fastening the carriage to the bracket 310 The bolt and the housing of the motor 320 are fixedly connected to the carriage, so that the tension of the input timing belt 360, which will be mentioned later, can be adjusted conveniently, and of course, if the housing of the motor 320 is fixedly connected to the bracket 310, other conventional tension structures such as a tension pulley need to be provided to adjust the tension.

The driving assembly 340 includes a driving rod 341 directly or indirectly rotatably connected to the bracket 310, and in this embodiment, the driving rod 341 is indirectly rotatably connected to the bracket 310 through another sliding tensioning assembly 350, that is, the driving rod 341 is rotatably connected to a carriage of the sliding tensioning assembly 350, so as to adjust the tension of each corresponding timing belt (mentioned below). Two driving pulleys 342 are fixedly connected to the driving rod 341, an input timing belt 360 is wound between one driving pulley 342 and the input pulley 321, and an output timing belt 370 is wound between the other driving pulley 342 and the output pulley 331. Of course, in order to realize the function of the multi-stage reducer, the transmission assembly 340 may also include more than two transmission rods 341 rotatably connected to the bracket 310, each transmission rod 341 is fixedly connected with two transmission pulleys, an input synchronous belt 360 is wound between one transmission pulley 342 and the input pulley 321, an output synchronous belt 370 is wound between the other transmission pulley 342 and the output pulley 331, the transmission pulley 342 matched with the input synchronous belt 360 and the transmission pulley 342 matched with the output synchronous belt 370 are located on different transmission rods 341, the transmission connection between each two transmission rods 341 is realized through the transmission synchronous belt wound on the corresponding transmission pulley 342, and each transmission pulley 342 is only matched with one transmission synchronous belt, the input synchronous belt 360 or the output synchronous belt 370, so as to ensure that each transmission rod 341 is sequentially connected in a transmission manner. No matter how many transmission rods 341 are provided, the diameter of each transmission belt wheel 342 is gradually increased along the power transmission direction of the transmission assembly 340, so that the output torque of the motor 320 can be effectively improved, the inertia of the load (namely, the saw blade 400) is reduced, the effect of the traditional gear reducer can be realized, and because the synchronous belt is a flexible part, the mechanical noise is relatively small, the cutting abnormal sound is easily found, meanwhile, because the synchronous belt does not need to add lubricating oil, the hidden danger of oil leakage does not exist, and the maintenance cost is relatively low.

Preferably, the diameter of the input pulley 321 is smaller than the diameter of the smallest diameter of the transmission pulleys 342, and the diameter of the output pulley 331 is larger than the diameter of the largest transmission pulley 342. This allows for deceleration using the input timing belt 360 and the output timing belt 370.

The saw blade 400 is indirectly disposed on the swing arm 220 by being fixedly coupled to the output rod 330, the saw blade 400 is coaxially disposed with the output rod 330, and an interval between a central axis thereof and a rotation coupling shaft between the swing arm 220 and the holder 210 is smaller than an interval between a central axis of the arc-shaped link and a rotation coupling shaft between the swing arm 220 and the holder 210, which contributes to an improvement in torsion resistance of the swing arm 220. Preferably, the saw blade 400 is in a lower limit position when the swing arm 220 is horizontally disposed.

In the use process, the swing driving part 230 drives the rocker arm 220 to swing downwards to realize the control of the feeding action of the saw blade 400, when the saw blade 400 is fed to a preset position, the sliding driving part 227 drives the chain wheel 225 to be pressed on the arc-shaped chain row, so that the rocker arm 220 is locked on the supporting part 240, and the saw blade 400 is prevented from shaking up and down or left and right in the cutting process; after the cutting operation is completed, the movable driving part 227 is reset to enable the chain wheel 225 to roll on the arc-shaped chain row, and at the moment, the swinging driving part 230 can drive the rocker arm 220 to swing upwards to realize the tool retracting action of the saw blade 400.

Example two.

As shown in fig. 8, and with reference to fig. 4 and 5, the present embodiment is different from the first embodiment in that, in the present embodiment, two or more sliders 226 and two slide driving members 227 are provided in each rocker arm 220 (fig. 7 illustrates an example in which two sliders 226 and two slide driving members 227 are provided in each rocker arm 220), and the sliders 226 and the slide driving members 227 are engaged with each other one by one, of course, the coupling positional relationship between the slide members 226 and the slide driving members 227, which are engaged with each other, is the same as in the first embodiment, each of the slide members 226 is rotatably coupled with the sprocket 225, and the sliding direction of each slider 226 is a length direction of a line connecting the rotation connecting shaft between the swing arm 220 and the holder 210 and the central axis of the corresponding sprocket 225, the line is perpendicular to the corresponding axis, i.e., the line is a line on a plane perpendicular to the central axis of the sprocket 225. Thus, when the swing arm 220 is locked on the corresponding support part 240, more than two points of support can be formed between the swing arm 220 and the corresponding support part 240, the connection is firmer, and the saw blade 400 (see fig. 1-3) can be further prevented from shaking.

The sliding member 226 may be directly slidably connected to the swing arm 220, or may be indirectly slidably connected to the swing arm 220 by being slidably connected to the bracket 310.

The present invention has been described in detail with reference to the accompanying drawings, but the embodiments of the present invention are not limited to the above embodiments, and those skilled in the art can modify the present invention according to the prior art, for example, all or part of each cylinder in the above embodiments is changed into a cylinder, and these embodiments all belong to the protection scope of the present invention.

Claims (14)

1. The utility model provides a rocker arm mechanism, its characterized in that rotates including support, supporting component, one end and connects rocking arm on the support and be used for the drive rocking arm wobbling swing drive unit, sliding connection has the slider on the rocking arm, just be provided with on the rocking arm and be used for the drive the slider for the gliding slide drive unit of rocking arm, it is connected with the sprocket to rotate on the slider, supporting component includes backup pad and a plurality of mutual parallel arrangement and equidistant the establishment establish round pin post in the backup pad, each round pin post be convex arrange form with sprocket complex arc chain row, the center pin of arc chain row with the rocking arm with rotation connecting axle coaxial arrangement between the support.

2. The rocker mechanism of claim 1, wherein the sliding direction of the slider is a length direction of a line connecting a rotation connecting shaft between the rocker arm and the holder and a center axis of the sprocket.

3. The rocker mechanism of claim 2, wherein there are more than two of each of said slider and said slide actuating member, and each of said slider and each of said slide actuating member are engaged one-to-one.

4. The rocker mechanism of claim 1, wherein there are two of said support plates, one at each end of said pin.

5. The rocker mechanism of claim 4, wherein the support member further includes a plurality of connecting posts disposed in parallel and equidistant relation to the support plate, each connecting post being offset from the pin post.

6. The rocker mechanism of claim 1, wherein the sprocket is a double sprocket comprising two parallel arranged wheels and a connecting rod connected between the two wheels.

7. The rocker arm mechanism of claim 6, wherein the slide driving member comprises a slide cylinder having a piston rod arranged parallel to the longitudinal direction of the rocker arm, and a push rod fixedly connected to the piston rod of the slide cylinder, the push rod being a Y-shaped rod having a Y-shaped upper end facing the connecting rod.

8. The rocker arm mechanism of claim 6, wherein the sliding driving part comprises a sliding cylinder with a piston rod arranged parallel to the length direction of the rocker arm and a push rod fixedly connected to the piston rod of the sliding cylinder, an arc-shaped push top surface is arranged at one end of the push rod facing the connecting rod, and the radius of the arc-shaped push top surface is smaller than that of the connecting rod.

9. The rocker mechanism of claim 1, wherein the sprocket has an encoder disposed thereon.

10. The rocker mechanism of claim 1, wherein the slider is provided with a return spring for urging the slider in a direction away from the support member.

11. The rocker mechanism of claim 1, wherein the swing drive member comprises a swing cylinder having a piston rod connected to the rocker arm.

12. The rocker arm mechanism of claim 1, wherein the support is provided with a first mounting plate, the first mounting plate is provided with a first mounting hole, the rocker arm is provided with a second mounting plate arranged in parallel with the first mounting plate, the second mounting plate is provided with a second mounting hole arranged coaxially with the first mounting hole, a sleeve is inserted in the first mounting hole and the second mounting hole, a locking bolt is inserted in the sleeve, the locking bolt is spirally connected with a first nut and a second nut, the first nut and the second nut abut against each other, and a nut cap of the locking bolt and a first gasket between the second mounting plate or the first mounting plate, a second gasket between the first mounting plate and the second mounting plate, and a third gasket between the first nut and the first mounting plate or the second mounting plate are sleeved outside the sleeve.

13. The rocker arm mechanism of claim 12, wherein the first nut and/or the second nut are/is radially provided with a fastening threaded hole, a fastening screw is spirally connected in the fastening threaded hole, and a copper gasket or a soft rubber sheet is clamped between the fastening screw and the locking bolt.

14. A cutting machine with a rocker mechanism, comprising a frame, characterized in that the frame is provided with a rocker mechanism according to any of claims 1-13, which is provided with a saw blade.

Images