CN211661694U - Gear box mechanism of grinding machine - Google Patents

Abstract

The utility model provides a grinding machine gear box mechanism that puts on gear, including the box, drive gear axle and a pair of drive gear axle group, drive gear axle group includes drive gear axle A and drive gear axle B with box articulated connection, drive gear axle A includes first pivot and is fixed in upper portion gear C and lower part gear D on the first pivot, drive gear axle B includes the second pivot and is fixed in the lower part gear E on the second pivot, lower part gear D and lower part gear E intermeshing of drive gear axle group, drive gear axle A and drive gear axle B of drive gear group reverse setting, drive gear axle is located between a pair of drive gear axle group, drive gear axle includes the drive pivot and is fixed in the drive pivot can with upper portion gear C and lower part gear D meshing respectively drive gear and lower drive gear, drive gear axle is by drive arrangement drive, go up drive gear and lower drive gear inequality footpath, the utility model discloses can conveniently realize the demand of shifting of grinding the machine.

Description

Gear box mechanism of grinding machine

Technical Field

The utility model relates to a grind quick-witted gear box mechanism that puts into gear.

Background

The existing floor grinding machine basically adopts a single rotating speed to drive a grinding head to rotate, and a related gear engaging device is not arranged to realize the change of the rotating speed of the grinding head so as to adapt to different grinding environments.

Disclosure of Invention

The utility model discloses improve above-mentioned problem, promptly the to-be-solved technical problem of the utility model is that current grinding head drive mode adopts single motor speed drive to be unfavorable for using and the grinding environment of difference.

The utility model discloses a concrete implementation scheme is: a gear-engaging gear box mechanism of a grinding machine comprises a box body, a driving gear shaft and a pair of transmission gear shaft sets, wherein each transmission gear shaft set comprises a transmission gear shaft A and a transmission gear shaft B which are hinged with the box body, each transmission gear shaft A comprises a first rotating shaft, an upper gear C and a lower gear D which are fixed on the first rotating shaft, each transmission gear shaft B comprises a second rotating shaft and a lower gear E which is fixed on the second rotating shaft, the lower gear D and the lower gear E of each transmission gear shaft set are meshed with each other, the transmission gear shafts A and the transmission gear shafts B of the two transmission gear sets are arranged in a reverse direction, the driving gear shaft is positioned between the pair of transmission gear shaft sets, each driving gear shaft comprises a driving rotating shaft, and an upper driving gear and a lower driving gear which are fixed on the driving rotating shaft and can be meshed with the upper, the drive gear axle reciprocates by the drive arrangement drive, go up drive gear and lower drive gear inequality footpath and go up drive gear and lower drive gear not simultaneously with the gear engagement on the drive gear axle group, the drive gear axle is rotated by motor drive.

Furthermore, the lateral part of the driving rotating shaft is fixedly connected with a sleeve sleeved outside the driving rotating shaft, the end part of the sleeve is fixedly connected with a longitudinal pull rod, and the pull rod extends out of the box body and is driven by a driving device to move up and down.

Further, the sum of the thicknesses of the lower gear E and the lower driving gear is smaller than or equal to that of the lower gear D.

Furthermore, a grinding head extending out of the box body is coaxially fixed on the transmission gear shaft A and the transmission gear shaft B.

Furthermore, the transmission gear shaft A, the transmission gear shaft B and the driving rotating shaft are connected with the box body through bearings to realize hinging.

Further, the driving device is an electric cylinder, a hydraulic cylinder or an air cylinder.

Further, the upper end of the driving gear shaft is coaxially fixed with a sleeve, the inner wall of the sleeve is provided with a sliding groove which is axially arranged, and the motor output shaft extends into the sleeve and is provided with a convex part matched with the sliding groove.

Furthermore, the outer side end of the pull rod is hinged with a handle, the handle is in a crutch shape, the middle of the handle is hinged to the outer side of the box body, the side part of the pull rod is provided with an arc-shaped groove, the side part of the box body is provided with a spring pin which can be buckled into the groove, the spring pin comprises a positioning pin which can stretch into the groove, and the positioning pin is fixedly connected with the box body through a spring.

Compared with the prior art, the utility model discloses following beneficial effect has: the utility model discloses can conveniently realize the demand of shifting of grinding the machine, can adapt to different ground environment and grind.

Drawings

Fig. 1 is the internal structure schematic diagram of the gear engaging gear box of the utility model.

Fig. 2 is the utility model discloses gear engaging gear box inside overlook the schematic diagram.

Fig. 3 is the structure schematic diagram of the position of the transmission gear shaft a and the transmission gear shaft B of the present invention.

Fig. 4 is the schematic view of the position structure of the driving gear shaft and the driving gear shaft of the present invention.

Fig. 5 is an external structure diagram of the assembly state of the present invention.

Fig. 6 is a schematic view of the spring pin structure of the present invention.

In the figure: 10-box body, 100-motor, 101-sleeve, 102-sliding groove, A-transmission gear shaft A, B-transmission gear shaft B, C-upper gear C, D-lower gear D, E-lower gear E, 210-first rotating shaft, 220-second rotating shaft, 30-driving gear shaft, 301-driving rotating shaft, 302-sleeve, 310-upper driving gear, 320-lower driving gear, 330-pull rod, 331-arc groove, 332-positioning pin, 333-spring and 340-pull handle.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

In a first embodiment, as shown in fig. 1 to 6, a gear engaging gearbox mechanism of a grinding machine includes a box 10, a driving gear shaft and a pair of transmission gear shaft sets, where the transmission gear shaft set includes a transmission gear shaft a and a transmission gear shaft B hinged to the box, the transmission gear shaft a includes a first rotating shaft 210 and an upper gear C and a lower gear D fixed on the first rotating shaft, the transmission gear shaft B includes a second rotating shaft 220 and a lower gear E fixed on the second rotating shaft, the lower gear D and the lower gear E of each transmission gear shaft set are engaged with each other, the transmission gear shafts a and the transmission gear shafts B of the two transmission gear sets are arranged in opposite directions, the driving gear shaft 30 is located between the pair of transmission gear shaft sets, the driving gear shaft includes a driving rotating shaft 301 and an upper driving gear 310 and a lower driving gear 320 fixed on the driving rotating shaft and capable of being engaged with the upper gear C and the lower gear D, respectively, the driving gear shaft is driven by a driving device to move up and down, the upper driving gear and the lower driving gear are not in the same diameter and are not meshed with gears on the transmission gear shaft set at the same time, and the transmission gear shaft A and the transmission gear shaft B are coaxially fixed with grinding heads extending out of the box body.

In this embodiment, the driving gear shaft is driven by the motor 100 to rotate, the motor is fixed on the upper portion of the box body, the lower gear D is meshed with the lower gear E by utilizing the difference of the number of teeth of the upper driving gear 310 and the lower driving gear 320, so as to ensure that the transmission gear B is driven to rotate while the transmission gear shaft a rotates, thus the rotating speed of each grinding head of the whole body can be changed by changing the rotating speed of the transmission gear shaft a, the upper gear C and the lower gear D have different numbers of teeth and different diameters and can be respectively meshed with the upper driving gear 310 and the lower driving gear 320, when the driving rotating shaft 301 moves up and down, the gear engagement switching between the upper driving gear 310 and the lower driving gear 320 and the transmission gear shaft a is realized, and the gear engagement is realized by adjusting.

In this embodiment, a sleeve 101 is coaxially fixed to the upper end of the driving gear shaft 30, the inner wall of the sleeve 101 is provided with a sliding groove 102 which is axially arranged, and the output shaft of the motor is provided with a convex part which can be matched with the sliding groove 102, so that the driving gear shaft 30 is ensured to axially move along the sleeve 101 in the lifting process of the driving gear shaft 30, and is continuously connected with the output end of the motor to realize the driving rotation of the motor 100.

In this embodiment, in order to satisfy the offset engagement and satisfy the condition that the lower gear D can be simultaneously engaged with the lower gear E and the lower driving gear 320, the thickness of the lower gear D is thicker than that of the lower gear E to satisfy the simultaneous engagement, and in this embodiment, the sum of the thicknesses of the lower gear E and the lower driving gear is less than or equal to that of the lower gear D.

In actual design, the lower gear D may be engaged with the lower gear E and the lower drive gear 320 at the same time by a misalignment in height.

In this embodiment, a sleeve 302 sleeved outside the driving shaft is fixedly connected to a side portion of the driving shaft 301, a longitudinal pull rod 330 is fixedly connected to an end portion of the sleeve, the pull rod extends out of an outer side of the box body and is driven by a driving device to move up and down, and the driving device is an electric cylinder, a hydraulic cylinder or an air cylinder or is driven by human power.

In this embodiment, the sum of the thicknesses of the lower gear E and the lower driving gear is less than or equal to the lower gear D.

The transmission gear shaft A, the transmission gear shaft B and the driving rotating shaft are connected with the box body through bearings to realize hinging.

In the second embodiment, in addition, a handle 340 is hinged to an outer side end of the pull rod, lifting of the pull rod is controlled by manpower, the handle 340 is in a crutch shape, the middle of the handle is hinged to the outer side of the box body, an arc-shaped groove 331 is formed in a side portion of the pull rod 330, a spring pin capable of being buckled into the groove is arranged on the side portion of the box body, the spring pin comprises a positioning pin 332 capable of extending into the groove, the positioning pin and the box body are fixedly connected through a spring 333, fixing of different heights of the handle is achieved through the positioning pin, one end, deviating from the pull rod, of the handle 340 is pressed downwards, the handle can rotate around the hinged position with the box body, lifting of the end of the pull rod is achieved, the pull rod is guaranteed to move axially under the limitation of the driving rotating shaft 301, and when the pull rod needs to descend, the.

Any technical solution disclosed in the present invention is, unless otherwise stated, disclosed a numerical range if it is disclosed, and the disclosed numerical range is a preferred numerical range, and any person skilled in the art should understand that: the preferred ranges are merely those values which are obvious or representative of the technical effect which can be achieved. Because numerical value is more, can't be exhaustive, so the utility model discloses just disclose some numerical values with the illustration the technical scheme of the utility model to, the numerical value that the aforesaid was enumerated should not constitute right the utility model discloses create the restriction of protection scope.

If the terms "first," "second," etc. are used herein to define parts, those skilled in the art will recognize that: the terms "first" and "second" are used merely to distinguish one element from another in a descriptive sense and are not intended to have a special meaning unless otherwise stated.

Also, above-mentioned the utility model discloses if disclose or related to mutually fixed connection's spare part or structure, then, except that other the note, fixed connection can understand: a detachable fixed connection (for example using bolts or screws) is also understood as: non-detachable fixed connections (e.g. riveting, welding), but of course, fixed connections to each other may also be replaced by one-piece structures (e.g. manufactured integrally using a casting process) (unless it is obviously impossible to use an integral forming process).

In addition, the terms used in any aspect of the present disclosure as described above to indicate positional relationships or shapes include similar, analogous, or approximate states or shapes unless otherwise stated.

The utility model provides an arbitrary part both can be assembled by a plurality of solitary component parts and form, also can be the solitary part that the integrated into one piece technology was made.

Finally, it should be noted that the above embodiments are only used for illustrating the technical solutions of the present invention and not for limiting the same; although the present invention has been described in detail with reference to preferred embodiments, it should be understood by those skilled in the art that: the invention can be modified or equivalent substituted for some technical features; without departing from the spirit of the present invention, it should be understood that the scope of the claims is intended to cover all such modifications and variations.

Claims (8)

1. A gear-engaging gear box mechanism of a grinding machine is characterized by comprising a box body, a driving gear shaft and a pair of transmission gear shaft sets, wherein each transmission gear shaft set comprises a transmission gear shaft A and a transmission gear shaft B which are hinged with the box body, each transmission gear shaft A comprises a first rotating shaft, an upper gear C and a lower gear D which are fixed on the first rotating shaft, each transmission gear shaft B comprises a second rotating shaft and a lower gear E which are fixed on the second rotating shaft, the lower gear D and the lower gear E of each transmission gear shaft set are meshed with each other, the transmission gear shafts A and the transmission gear shafts B of the two transmission gear sets are arranged in a reverse direction, the driving gear shaft is positioned between the pair of transmission gear shaft sets, each driving gear shaft comprises a driving rotating shaft and an upper driving gear and a lower driving gear which are fixed on the driving rotating shaft and can be meshed with the upper gear C, the drive gear axle reciprocates by the drive arrangement drive, go up drive gear and lower drive gear inequality footpath and go up drive gear and lower drive gear not simultaneously with the gear engagement on the drive gear axle group, the drive gear axle is rotated by motor drive.

2. A mill gear box mechanism according to claim 1, characterized in that the side of the driving shaft is fixedly connected with a sleeve which is sleeved outside the driving shaft, and the end of the sleeve is fixedly connected with a longitudinal draw bar which extends outside the box and is driven by the driving device to move up and down.

3. A grinding mill gear box mechanism according to claim 1, characterized in that the sum of the thicknesses of the lower gear E and the lower drive gear is smaller than or equal to the lower gear D.

4. The gear box mechanism of grinding mill of claim 1 wherein the drive gear shaft a and the drive gear shaft B are coaxially affixed with a grinding bit extending outside the housing.

5. A mill gear box mechanism according to any one of claims 1 to 4, wherein the drive gear shaft A, the drive gear shaft B and the drive shaft are connected to the box body via bearings to achieve articulation.

6. A grinding mill gear box mechanism according to claim 1, characterized in that the drive means is an electric, hydraulic or pneumatic cylinder.

7. A mill gear box mechanism according to claim 1, characterized in that a sleeve is coaxially fixed to the output of the motor, the inner wall of the sleeve is provided with axially arranged sliding grooves, and the upper end of the drive gear shaft extends into the sleeve and is provided with protrusions cooperating with the sliding grooves.

8. The gear box mechanism of grinding machine as claimed in claim 2, wherein the pull rod is hinged at its outer end to a pull handle, the pull handle is in the shape of a crutch, the middle part of the pull handle is hinged at the outer side of the box body, the pull rod side part is provided with an arc-shaped groove, the box body side part is provided with a spring pin which can be buckled into the groove, the spring pin comprises a positioning pin which can extend into the groove, and the positioning pin is fixedly connected with the box body through a spring.

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