CN211729743U

CN211729743U - Power assisting device for mounting saw blade

Info

Publication number: CN211729743U
Application number: CN201922378096.6U
Authority: CN
Inventors: 陈建军; 钟继曦
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-12-06
Filing date: 2019-12-26
Publication date: 2020-10-23
Anticipated expiration: 2029-12-26
Also published as: CN211762599U

Abstract

The utility model provides a power assisting device for installing saw blades, which comprises an installation seat, a pressing piece, a main driving mechanism and an auxiliary fixing mechanism; the mounting seat is provided with a shaft hole for connecting a main shaft of the saw blade box, and the pressing piece corresponds to the saw blade; the main driving mechanism and the auxiliary fixing mechanism are both arranged on the mounting seat, and the main driving mechanism and the auxiliary fixing mechanism are both provided with movable strokes capable of extending out of the mounting seat and retracting towards the direction of the mounting seat; the main driving mechanism and the auxiliary fixing mechanism extend out to push the pressing piece to press the saw blade. The utility model discloses effectively avoided the skew that unstable or inhomogeneous caused in the installation locking saw bit, further locking saw bit has improved the installation accuracy.

Description

Power assisting device for mounting saw blade

Technical Field

The utility model belongs to the technical field of marble cutter technique and specifically relates to a tight booster unit of stone material machine headstock saw bit clamp.

Background

The high-speed rotation of the saw blade of the stone cutting machine is adopted to complete the processing of saw tooth grinding, saw tooth grinding and the like, the existing saw blade needs to be locked when being installed on a rotating shaft (a saw blade main shaft), the locking mode adopts a nut to be screwed on the rotating shaft to lock the saw blade, and a hammer is adopted to strike a wrench to lock the nut in the locking process of the saw blade. When the saw blade is replaced, the nut is loosened by a hammering method. The shaft deformation of the saw blade rotating fixing shaft and the damage of the transmission bearing can be caused under the strong vibration. Meanwhile, the saw blade is pressed by manual knocking, force is not uniform easily, or the thread is damaged by over-tightening, or the instability of high-speed rotation of the saw blade is caused by over-loosening, meanwhile, the saw blade is too complicated in locking and loosening operation, the operation speed is low, the thread is damaged by over-tightening force on the saw blade easily, or the screw cannot be ensured to be coaxial with a rotating main shaft after the installation of the saw blade by force unevenness, certain inclination or deviation exists, the requirement of a saw blade cutting product cannot be met due to the fact that the saw blade cannot be cut, and the product quality cannot be ensured.

SUMMERY OF THE UTILITY MODEL

The above-mentioned defect to prior art exists, the utility model provides a booster unit for installing the saw bit can lock the saw bit fast and stably, guarantees that thrust evenly acts on the saw bit, solves the saw bit of installation and the problem of main shaft disalignment.

In order to achieve the above purpose, the utility model provides a technical scheme as follows:

the utility model provides a power assisting device for installing saw blades, which comprises an installation seat, a pressing piece, a main driving mechanism and an auxiliary fixing mechanism; the mounting seat is provided with a shaft hole for connecting a main shaft of the saw blade box, and the pressing piece corresponds to the saw blade; the main driving mechanism and the auxiliary fixing mechanism are both arranged on the mounting seat, and the main driving mechanism and the auxiliary fixing mechanism are both provided with movable strokes capable of extending out of the mounting seat and retracting towards the direction of the mounting seat; the main driving mechanism and the auxiliary fixing mechanism extend out to push the pressing piece to press the saw blade.

Further, the mount pad is in connect the shaft hole periphery and seted up the installation cell body, main actuating mechanism includes: the pressing driving mechanism comprises an elastic element and a piston piece, the piston piece is assembled in the mounting groove body in a sealing and movable mode and forms a sealing cavity together with the mounting groove body in an enclosing mode, and the mounting groove body is provided with a through hole communicated with the sealing cavity; the elastic element applies an acting force to the piston piece towards the bottom of the installation groove body; the pressing piece is connected with the piston piece and moves synchronously with the piston piece; the pressurization mechanism is connected with the through hole so as to inject filling media into the sealed cavity from the through hole.

Further, the auxiliary fixing mechanism comprises a transmission mechanism, a driving mechanism and an auxiliary sleeve; auxiliary sleeve spiro union is on the mount pad, auxiliary sleeve's rotation is realized stretching out or indentation through the spiro union cooperation with the mount pad, and auxiliary sleeve stretches out or indentation the moving direction of mount pad is the same with the moving direction who compresses tightly the piece, and the drive mechanism transmission is connected auxiliary sleeve to it is rotatory to drive auxiliary sleeve, drive mechanism is formed with the link that is used for connecting actuating mechanism on the mount pad, and actuating mechanism passes through the link and connects drive mechanism to it is rotatory through drive mechanism drive auxiliary sleeve.

Furthermore, the installation groove bodies are multiple and are uniformly distributed on the periphery of the connecting shaft hole on the installation seat, and a pressing driving mechanism is arranged on each installation groove body.

Further, the pressing piece is a pressing plate.

Further, the pressing plate is simultaneously connected with the piston pieces of the pressing driving mechanisms.

Furthermore, the mounting seat has seted up the ring channel in the connection shaft hole periphery, has the external screw thread on the inside wall of ring channel, and auxiliary sleeve has the internal thread, auxiliary sleeve sets up in the ring channel to the spiro union is on the external screw thread of ring channel.

Further, the auxiliary sleeve is provided with an external gear, and the transmission mechanism is a gear transmission mechanism and is in transmission connection with the auxiliary sleeve.

Furthermore, a connecting end of the transmission mechanism formed on the mounting seat is a central shaft connected with a transmission gear of the transmission mechanism, and the driving mechanism is connected with the central shaft to drive the transmission gear of the transmission mechanism to rotate so as to drive the auxiliary sleeve to rotate.

The utility model discloses an as above technical scheme, simple structure, locking are firm, reduce intensity of labour and improved the saw bit effectively and change efficiency, have effectively avoided the unstable or inhomogeneous skew that causes in the installation locking saw bit, prevent that the disalignment or not slope from appearing with the saw bit headstock in the installation saw bit, have improved the precision of installation saw bit greatly.

Drawings

FIG. 1 is a schematic view of a power assist device for mounting a saw blade according to the present invention;

FIG. 2 is an exploded view of a power assist device for mounting a saw blade according to the present invention;

fig. 3 is a schematic view of the auxiliary fixing mechanism of the present invention mounted on the mounting base;

fig. 4 is a schematic view of the auxiliary fixing mechanism of the present invention;

fig. 5 is a cross-sectional view of the pressing drive mechanism of the present invention;

fig. 6 is a schematic view of an auxiliary fixing mechanism of the power assisting device of the present invention.

Detailed Description

To further explain the embodiment of the utility model, the utility model provides an attached drawing. The accompanying drawings, which are incorporated in and constitute a part of this disclosure, illustrate embodiments of the invention and, together with the description, serve to explain the principles of the embodiments. With these references, one of ordinary skill in the art will appreciate other possible embodiments and advantages of the present invention. Elements in the figures are not drawn to scale and like reference numerals are generally used to indicate like elements.

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

referring to fig. 1 to 6, a preferred power assisting device for mounting a saw blade is shown as an embodiment:

a power assisting device for mounting a saw blade comprises a mounting seat 2, a pressing driving mechanism 3 with an elastic element, a pressing piece 1 and a pressurizing mechanism, wherein the mounting seat 2 is provided with a connecting shaft hole 12, and the periphery of the connecting shaft hole 12 is provided with a mounting groove body 203; for simple processing, the mounting seat 2 is preferably a solid of revolution, and the mounting seat 2 in this embodiment has a substantially hollow cylindrical shape; of course, in other embodiments, other shapes, such as square columns, etc., may be used.

The pressing driving mechanism 3 comprises an elastic element and a piston piece 30, the piston piece 30 is assembled in the installation groove body 203 in a sealing and movable mode, and is enclosed together with the installation groove body 203 to form a sealed cavity 205, and the installation groove body 203 is provided with a through hole communicated with the sealed cavity 205.

The elastic element applies a force to the piston member 30 toward the bottom of the mounting groove 203; the pressing member 1 is connected to the piston member 30 and moves synchronously with the piston member 30. The pressurization mechanism connects the through-holes to inject the filling medium from the through-holes into the sealed cavity 205. Specifically, the filling medium is selected according to the type of pressurization mechanism; if the pneumatic pressurization mechanism is adopted, the filling medium is compressed gas; if the hydraulic pressurization mechanism is filled with hydraulic oil, in this embodiment, the pressurization mechanism is a hydraulic pressurization mechanism (not shown), and the filling medium is hydraulic oil.

The booster unit is fixedly connected to the main shaft of the saw blade through the connecting shaft hole 12 of the mounting seat 2, so that the pressing piece 1 corresponds to the saw blade, when the pressure is increased, a pressurizing mechanism (not marked in the figure) drives hydraulic oil to be injected into the sealed cavity 205 from the through hole to drive the piston piece 30 and the pressing piece 1 to move towards the direction of the notch of the mounting groove body 203 by overcoming the acting force of the elastic element, so that the pressing piece 1 extends out to press the saw blade, and the fast assembly and the stability are realized; during the pressure release, the pressure applying to hydraulic oil is cancelled to pressure intensifying mechanism (not marked in the figure), piston spare 30 with compress tightly a 1 and remove towards the bottom direction of installation cell body 203 under elastic element's effect, and then the drive hydraulic oil rapid reflux in seal chamber 205 compresses tightly a 1 and contracts fast, can be quick loosen the saw bit.

Wherein the piston member 30 includes a plunger 303 and an O-ring seal; the plunger 303 is sealed by an O-ring seal and movably mounted in the mounting groove 203.

Wherein the plunger 303 is provided with two flanges 308 and the O-ring seal is mounted between the two flanges 308 of the plunger 303. Preferably, the O-shaped gasket 302 and the O-shaped gasket 301 are combined to be used as a sealing element, so that the sealing device is economical and durable and has a good sealing effect. And the flange 308 of the plunger is used for limiting the sealing element, so that the structure is more compact. Of course, other seals may be used for sealing. Or, a groove recessed in the side surface of the plunger 303 is formed in the plunger 303, and an O-shaped sealing element is assembled in the groove and is in sealing fit with the inner wall of the mounting groove body 203, so that the piston element 30 can be sealed and movably arranged.

The booster device further comprises a limiting piece, in order to limit the moving distance of the piston piece 30 and prevent the piston piece 30 from completely separating from the installation groove body 203, a section of internal thread is arranged on a notch of the installation groove body 203, the limiting piece is a threaded sleeve 305, and the threaded sleeve 305 is in threaded connection with the installation groove body 203; the threaded sleeve 305 and the plunger flange 308 are matched for limiting, namely when the piston piece 30 moves towards the notch of the installation groove body 203, the piston piece 30 is limited by the threaded sleeve 305, and further the maximum moving range of the piston piece 30 and the pressing piece 1 is limited, so that the structure is simple, the limiting is reliable, the threaded sleeve 305 is directly screwed into the sealing cavity 205, and preferably, in order to be smoother and convenient to assemble, the surface of the threaded sleeve 305 is kept flush with the surface of the sealing cavity 205 during complete screwing. Of course, in other embodiments, the limiting member may also adopt other structures, such as a sleeve structure adopting other non-threaded matching modes, such as a sleeve fixed by clamping and the like.

The elastic element is a tension spring 304, the tension spring 304 is arranged in the sealed cavity 205, two ends of the tension spring 304 are respectively fixed on the installation groove body 203 and the piston piece 30 through

studs

306 and 307, and a pulling force towards the bottom of the installation groove body 203 is exerted on the piston piece 30. Of course, other elastic elements may be used as long as they can apply a force to the piston 30 toward the bottom of the mounting groove 203.

The piston member 30 (specifically, the plunger 303) is provided with a receiving groove 309 in a concave manner on a surface enclosing the sealing cavity 205, and the tension spring 304 is installed in the receiving groove 309. Like this compress tightly actuating mechanism 3 overall structure is more compact, can the holding have certain length extension spring 304 promptly, and under the spacing cooperation between screw sleeve 305 and plunger flange 308, also can make in the compact space satisfy piston piece 30 and have certain home range, the space utilization of installation cell body 203 is more abundant, is favorable to whole booster unit miniaturization.

The installation grooves 203 are provided with a plurality of installation grooves which are uniformly distributed on the installation base 2 at the periphery of the connecting shaft hole 12, and correspondingly, a pressing driving mechanism 3 is arranged on each installation groove 203. Preferably, in order to enable the pressing driving mechanism 3 to stably ascend and lock the saw blade and simultaneously achieve simple structure and convenience in installation, five installation groove bodies 203 are uniformly arranged on the installation seat 2 along the circumferential direction, each installation groove body 203 is correspondingly provided with one pressing driving mechanism 3, the five pressing driving mechanisms 3 apply pressure to the saw blade together, the effect is uniform, the pressing force is increased, and the saw blade is pressed more quickly and stably. Of course, in other embodiments, the number of the fitting structures of the installation groove 203 and the pressing drive mechanism 3 is not limited to this, and other numbers, such as two, three, or more than three, may be adopted. Alternatively, when the pressing member 1 driven by the single pressing drive mechanism 3 can satisfy the pressing force, a single pressing member may be used.

Wherein, the pressing piece 1 is a pressing plate; the press plate is simultaneously connected with the piston elements 30 of the five pressing driving mechanisms 3 and moves synchronously. The pressing plate is provided with a threaded through hole, the pressing plate is fixed with the piston piece 30 through threaded connection, the pressing driving mechanism 3 is utilized to push the pressing plate, then the saw blade is pressed through the pressing plate, a pressing plate structure is adopted, the surface and the surface of the saw blade can be matched, the acting force distribution is more uniform, and the pushing force is more uniform and the saw blade is locked more stably. Of course, in other embodiments, the pressing member 1 may be independent, such as only one pressing block, that is, the pressing member 1 cooperating with the piston member 30 of each pressing driving mechanism 3 is independent, and five pressing members 1 are respectively in contact with the saw blade and simultaneously press the saw blade by the driving of the five pressing driving mechanisms 3.

The power assisting device can also comprise an auxiliary fixing mechanism, wherein the auxiliary fixing mechanism comprises a transmission mechanism 8, a driving mechanism and an auxiliary sleeve 9; auxiliary sleeve 9 spiro union is on mount pad 2, auxiliary sleeve 9's rotation is realized stretching out or indentation through the spiro union cooperation with mount pad 2, and auxiliary sleeve 9 stretches out or indentation the moving direction of mount pad 2 is the same with the moving direction who compresses tightly 1, and 8 transmissions of drive mechanism are connected auxiliary sleeve 9 is rotatory to drive auxiliary sleeve 9, drive mechanism 8 is formed with the link that is used for connecting actuating mechanism on mount pad 2, and actuating mechanism passes through the link and connects drive mechanism 8 to it is rotatory through 8 drive mechanism drive auxiliary sleeve 9.

When the pressing driving mechanism 3 drives the pressing piece 1 to extend out to press against the saw blade, the driving mechanism drives the auxiliary sleeve 9 to rotate, so that the auxiliary sleeve 9 extends out to press against the saw blade. With this arrangement, the piston member 30 of the pressing drive mechanism 3 can be effectively prevented from being unstable and being displaced. When the piston member 30 of a pressing drive mechanism 3 moves unstably to cause the uneven progress, the saw blade can be kept stable by the pressing of the auxiliary sleeve 9.

Furthermore, the mounting base 2 has offered ring channel 13 in connecting the shaft hole 12 periphery, has the external screw thread on the inside wall of ring channel 13, and auxiliary sleeve 9 has the internal thread, auxiliary sleeve 9 sets up in ring channel 13 to the spiro union is on the external screw thread of ring channel 13, auxiliary sleeve 9 has the external gear, drive mechanism 8 is gear drive mechanism, and the transmission is connected auxiliary sleeve 9. The gear transmission is stable, and the structure is simple. Of course, in other embodiments, other transmission modes, such as a belt transmission mode, etc., may be used.

Furthermore, the connecting end of the transmission mechanism 8 formed on the mounting base 2 is a central shaft 10 connected with a transmission gear of the transmission mechanism 8, and a driving mechanism (such as a handle or a motor) is connected with the central shaft 10 to drive the transmission gear of the transmission mechanism 8 to rotate, so as to drive the auxiliary sleeve 9 to rotate.

In this embodiment, the pressing driving mechanism and the pressurizing mechanism constitute a main driving mechanism, and both the main driving mechanism and the auxiliary fixing mechanism have a movable stroke capable of extending out of the mounting seat and retracting towards the mounting seat, so that the pressing member can be pushed by the extension of the main driving mechanism and the auxiliary fixing mechanism to press the saw blade.

The utility model provides a pair of a booster unit for installing saw bit, quick locking saw bit during the pressure boost, when the saw bit needs the unblock, through the pressure release, thereby the clamp plate resets fast and realizes that the pine takes off fast to the saw bit, convenient operation, difficult emergence causes the problem of rotation axis wearing and tearing because of changing and lock nut. The utility model discloses simple structure, dismantlement convenience, locking are firm, reduce intensity of labour and improved saw bit change efficiency effectively.

The present invention may be embodied as, but not limited to, the structures shown in the figures. The foregoing is only a preferred embodiment of the present invention, and other changes and modifications may be made in the details of the embodiments and arrangements of the inventions by those skilled in the art. The content of the description should not be understood as a limitation of the invention. Modifications and variations of the present invention are possible in light of the above teachings and may be acquired from practice of the invention.

Claims

1. The utility model provides a booster unit for installing saw bit which characterized in that: comprises a mounting seat, a pressing piece, a main driving mechanism and an auxiliary fixing mechanism; the mounting seat is provided with a shaft hole for connecting a main shaft of the saw blade box, and the pressing piece corresponds to the saw blade; the main driving mechanism and the auxiliary fixing mechanism are both arranged on the mounting seat, and the main driving mechanism and the auxiliary fixing mechanism are both provided with movable strokes capable of extending out of the mounting seat and retracting towards the direction of the mounting seat; the main driving mechanism and the auxiliary fixing mechanism extend out to push the pressing piece to press the saw blade.

2. A booster apparatus as set forth in claim 1 wherein: the mount pad has seted up the installation cell body in connecting the shaft hole periphery, and main actuating mechanism includes: the pressing driving mechanism comprises an elastic element and a piston piece, the piston piece is assembled in the mounting groove body in a sealing and movable mode and forms a sealing cavity together with the mounting groove body in an enclosing mode, and the mounting groove body is provided with a through hole communicated with the sealing cavity; the elastic element applies an acting force to the piston piece towards the bottom of the installation groove body; the pressing piece is connected with the piston piece and moves synchronously with the piston piece; the pressurization mechanism is connected with the through hole so as to inject filling media into the sealed cavity from the through hole.

3. A booster apparatus as set forth in claim 2 wherein: the auxiliary fixing mechanism comprises a transmission mechanism, a driving mechanism and an auxiliary sleeve; auxiliary sleeve spiro union is on the mount pad, auxiliary sleeve's rotation is realized stretching out or indentation through the spiro union cooperation with the mount pad, and auxiliary sleeve stretches out or indentation the moving direction of mount pad is the same with the moving direction who compresses tightly the piece, and the drive mechanism transmission is connected auxiliary sleeve to it is rotatory to drive auxiliary sleeve, drive mechanism is formed with the link that is used for connecting actuating mechanism on the mount pad, and actuating mechanism passes through the link and connects drive mechanism to it is rotatory through drive mechanism drive auxiliary sleeve.

4. A booster apparatus as set forth in claim 3 wherein: the installation groove bodies are multiple and evenly distributed on the installation seat at the periphery of the connecting shaft hole, and a pressing driving mechanism is arranged on each installation groove body.

5. A booster apparatus as set forth in claim 4 wherein: the pressing piece is a pressing plate.

6. A booster apparatus as set forth in claim 5 wherein: the pressing plate is simultaneously connected with the piston pieces of the plurality of pressing driving mechanisms.

7. A booster apparatus as set forth in claim 3 wherein: the mounting seat is provided with an annular groove at the periphery of the connecting shaft hole, an external thread is arranged on the inner side wall of the annular groove, an auxiliary sleeve is provided with an internal thread, and the auxiliary sleeve is arranged in the annular groove and is in threaded connection with the external thread of the annular groove.

8. A booster apparatus as set forth in claim 7 wherein: the auxiliary sleeve is provided with an external gear, and the transmission mechanism is a gear transmission mechanism and is in transmission connection with the auxiliary sleeve.

9. A booster apparatus as set forth in claim 8 wherein: the connecting end of the transmission mechanism formed on the mounting seat is a central shaft connected with a transmission gear of the transmission mechanism, and the driving mechanism is connected with the central shaft to drive the transmission gear of the transmission mechanism to rotate so as to drive the auxiliary sleeve to rotate.