CN219336203U

CN219336203U - Saw cut decelerator and saw cut equipment

Info

Publication number: CN219336203U
Application number: CN202320065395.8U
Authority: CN
Inventors: 孙立国; 梁业成; 吴立永
Original assignee: Guangdong Keli Industry Technology Co ltd
Current assignee: Guangdong Keli Industry Technology Co ltd
Priority date: 2023-01-05
Filing date: 2023-01-05
Publication date: 2023-07-14
Anticipated expiration: 2033-01-05

Abstract

The utility model discloses a sawing speed reducing device and sawing equipment, wherein the sawing speed reducing device is used for connecting a motor and a saw blade, and the motor is provided with a first output shaft; the sawing speed reducer comprises a belt transmission mechanism and a first gear transmission mechanism, wherein the first output shaft is connected with the belt transmission mechanism, and the belt transmission mechanism is provided with a second output shaft; the first gear transmission mechanism comprises a first gear and a second gear meshed with the first gear, the second output shaft is connected with the first gear, and the saw blade is connected with the second gear; the first gear and the second gear both comprise annular first gear bodies, the first gear bodies are provided with first outer peripheral surfaces, a plurality of first teeth and a plurality of second teeth are symmetrically arranged on two sides of the first outer peripheral surfaces, which are defined by the central parts in the axial direction, the spiral angles of the first teeth and the second teeth are opposite to each other, and the first gears and the second gears have the advantages of high contact ratio, uniform stress, no axial load and high bearing capacity, so that the saw blade works more stably.

Description

Saw cut decelerator and saw cut equipment

Technical Field

The utility model relates to the technical field of sawing equipment, in particular to a sawing speed reducing device and sawing equipment.

Background

Sawing devices generally consist of a motor, a reduction gear and a saw blade. The output shaft of the motor is connected with the input end of the speed reducing device, the output end of the speed reducing device is connected with the saw blade, and the power output by the motor reaches the linear speed and torque suitable for sawing after being reduced by the speed reducing device.

The current special speed reducer for sawing comprises a speed reducer box body, an input shaft and an output shaft, wherein one end of an inner hole of the input shaft is matched with a motor shaft, the other end of the inner hole of the input shaft is connected with a small bevel gear flat key of a first-stage bevel gear assembly to achieve interference fit, the first-stage bevel gear assembly is meshed with a second-stage cylindrical bevel gear assembly and a third-stage cylindrical bevel gear assembly through tooth surfaces to form gear transmission, one end of the output shaft is provided with two tapered roller bearings, the two tapered roller bearings are installed back to back, the other end of the output shaft is provided with a cylindrical roller bearing, the output shaft is connected with an inner pressure disc flat key, an inner pressure disc and an outer pressure disc are used for clamping a saw blade, and the saw blade is fastened through pin limiting and locking nuts.

Due to the adoption of the gear transmission structure, when the saw blade is overloaded, the saw blade directly impacts parts such as the main motor, the shaft and the like, so that the damage is caused. In addition, the gears adopted by the speed reducer have large axial load.

Disclosure of Invention

The embodiment of the utility model provides a sawing speed reducing device and sawing equipment, which aim to solve the technical problems that a speed reducer in the prior art adopts a gear transmission structure, and parts such as a main motor, a shaft and the like are directly impacted when a saw blade is overloaded, and the axial load is larger.

In order to solve the technical problems, in one aspect, an embodiment of the present utility model provides a sawing speed reducer, configured to connect a motor and a saw blade, where the motor has a first output shaft; the sawing deceleration device comprises:

the first output shaft is connected with the belt transmission mechanism, and the belt transmission mechanism is provided with a second output shaft; and

the first gear transmission mechanism comprises a first gear and a second gear meshed with the first gear, the second output shaft is connected with the first gear, and the saw blade is connected with the second gear;

the first gear and the second gear comprise annular first gear bodies, the first gear bodies are provided with first outer peripheral surfaces, a plurality of first teeth and a plurality of second teeth are symmetrically arranged on two sides of the first outer peripheral surfaces, which are defined by central parts in the axial direction, and spiral angles of the first teeth and the second teeth are opposite to each other.

In some embodiments, the sawing deceleration device further comprises:

the second gear transmission mechanism comprises a third gear and a fourth gear meshed with the third gear, the second gear is provided with a third output shaft, the third gear is connected with the third output shaft, the fourth gear is provided with a fourth output shaft, and the saw blade is connected with the fourth output shaft;

the third gear and the fourth gear each comprise an annular second gear body, the second gear body is provided with a second outer peripheral surface, a plurality of third teeth and a plurality of fourth teeth are symmetrically arranged on two sides of the second outer peripheral surface, which are defined by the central part in the axial direction, and helix angles of the third teeth and the fourth teeth are opposite to each other.

In some embodiments, the belt transmission mechanism comprises a first belt pulley, a transmission belt and a second belt pulley, two ends of the transmission belt are respectively sleeved on the first belt pulley and the second belt pulley, the first output shaft is connected with the first belt pulley, and the second output shaft is arranged on the second belt pulley.

On the other hand, the embodiment of the utility model also provides sawing equipment which comprises a motor, a saw blade and the sawing speed reducing device; the saw blade is connected with the motor through the sawing speed reducing device.

In some embodiments, the sawing device further comprises:

the bottom of the swing bracket is rotationally connected to a mounting surface, and the sawing speed reducing device, the motor and the saw blade are all arranged on the swing bracket; and

and the driving device is in driving connection with the swinging bracket, and the swinging bracket swings to enable the saw blade to feed.

In some embodiments, the swing bracket comprises a triangular supporting structure, wherein the bottom of the triangular supporting structure is provided with a connecting angle, a swing shaft is arranged on the connecting angle, a first connecting seat is arranged on the mounting surface, and the swing shaft is rotationally connected with the first connecting seat;

the sawing speed reducer, the motor and the saw blade are all fixed at the positions of which the connecting angles are opposite edges.

In some embodiments, the triangular support structure includes a first linear support, a second linear support, and a third linear support, the first linear support, the second linear support, and the third linear support being connected in a triangle;

the connecting angle is arranged at the connecting position of the first linear supporting piece and the second linear supporting piece, and the third linear supporting piece is positioned at the opposite side position of the connecting angle.

In some embodiments, the driving device is an oil cylinder, the oil cylinder is provided with a piston rod and a cylinder body, the cylinder body is rotatably fixed on the swing bracket, a second connecting seat is arranged on the mounting surface, and the piston rod extends downwards and the tail end of the piston rod is rotatably fixed on the second connecting seat.

In some embodiments, the third linear supporting member is provided with a mounting bracket, the sawing speed reducing device, the motor and the saw blade are all arranged on the mounting bracket, one side, close to the oil cylinder, of the mounting bracket is provided with a fourth linear supporting member, and the fourth linear supporting member is connected with the cylinder body to form an included angle structure.

In some embodiments, the center of gravity of the motor and the center of gravity of the saw blade are located at two sides of the center of gravity of the triangular supporting structure respectively, a third connecting seat is arranged at the top of the swing bracket at the outer side of the motor, and the cylinder body is rotatably connected to the third connecting seat.

The embodiment of the utility model has the following beneficial effects: the saw cutting speed reducing device adopts a belt transmission mechanism as a primary transmission mechanism connected with the output of a motor, and when clamping stagnation occurs in the saw cutting process, the belt transmission mechanism can skid to protect the saw blade and the first gear transmission mechanism, so that overload impact on the motor and the first output shaft is avoided; the spiral angles of the first teeth and the second teeth on the first gear and the second gear in the sawing speed reducing device are opposite to each other, and the saw blade has the advantages of high contact ratio, uniform stress, no axial load and high bearing capacity, and enables the saw blade to work more stably.

Drawings

FIG. 1 is a schematic view of a sawing deceleration device according to a first embodiment of the utility model;

FIG. 2 is an enlarged partial view of region A shown in FIG. 1;

figure 3 is a schematic structural view of a second embodiment of a sawing device according to the utility model;

fig. 4 is a schematic structural view of a third embodiment of a sawing device according to the utility model.

Reference numerals illustrate:

100. a sawing speed reducing device; 110. a belt drive mechanism; 111. a second output shaft; 112. a first pulley; 113. a drive belt; 114. a second pulley; 120. a first gear transmission mechanism; 121a, a first gear; 121b, a second gear; 1211. a first outer peripheral surface; 1212. a first tooth; 1213. a second tooth; 122. a third output shaft; 130. a second gear transmission mechanism; 131a, a third gear; 131b, a fourth gear; 1311. a second outer peripheral surface; 1312. a third tooth; 1313. a fourth tooth; 132. a fourth output shaft; 200. a motor; 210. a first output shaft; 300. a saw blade; 400. a swing bracket; 410. a triangular support structure; 411. a connection angle; 412. a swing shaft; 413. a first linear bearing; 414. a second linear bearing; 415. a third linear bearing; 420. a mounting bracket; 421. a fourth linear bearing; 500. a driving device; 510. a piston rod; 520. a cylinder; 600. a first connection base; 700. and the second connecting seat.

Detailed Description

The present utility model will be described in further detail with reference to the accompanying drawings, for the purpose of making the objects, technical solutions and advantages of the present utility model more apparent. It is only stated that the terms of orientation such as up, down, left, right, front, back, inner, outer, etc. used in this document or the imminent present utility model, are used only with reference to the drawings of the present utility model, and are not meant to be limiting in any way.

In the present utility model, unless specifically stated and limited otherwise, the terms "connected," "affixed," and the like are to be construed broadly, and for example, "affixed" may be a fixed connection, a removable connection, or an integral body; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

The description as it relates to "first", "second", etc. in the present utility model is for descriptive purposes only and is not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to base that the technical solutions can be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not within the scope of protection claimed in the present utility model.

In an embodiment of the present utility model, as shown in fig. 1 and 2, a sawing reduction device 100 is provided for connecting a motor 200 and a saw blade 300, the motor 200 having a first output shaft 210. The sawing deceleration device 100 comprises a belt drive 110 and a first gear drive 120. The first output shaft 210 is connected to the belt transmission mechanism 110, and the belt transmission mechanism 110 has a second output shaft 111. The first gear transmission mechanism 120 includes a first gear 121a and a second gear 121b engaged with the first gear 121a, the second output shaft 111 is connected to the first gear 121a, and the saw blade 300 is connected to the second gear 121b.

Wherein each of the first gear 121a and the second gear 121b includes a ring-shaped first gear body having a first outer peripheral surface 1211, the first outer peripheral surface 1211 being symmetrically provided with a plurality of first teeth 1212 and a plurality of second teeth 1213 on both sides of a boundary with a central portion in an axial direction, and helix angles of the first teeth 1212 and the second teeth 1213 being opposite to each other. That is, the first tooth 1212 and the second tooth 1213 are both helical teeth, which have a larger load-bearing capacity than spur gears and operate smoothly. When the first gear 121a and the second gear 121b mesh with each other to transmit torque, the loads generated by the first tooth 1212 and the second tooth 1213 face each other in opposite directions on both sides bordered by the center portion in the axial direction, and the loads generated in opposite directions cancel each other as described above.

The sawing speed reducer 100 adopts a belt transmission mechanism 110 as a primary transmission mechanism connected with the output of the motor 200, and when clamping stagnation occurs in the sawing process, the belt transmission mechanism 110 can skid to protect the saw blade 300 and the first gear transmission mechanism 120, so that overload impact on the motor 200 and the first output shaft 210 is avoided.

The first gear 121a and the second gear 121b in the sawing reduction device 100 have the advantages of high contact ratio, uniform stress, no axial load and high bearing capacity, and the saw blade 300 works more smoothly.

In some embodiments, as shown in fig. 1 and 2, the sawing speed reducing device 100 further comprises a second gear transmission mechanism 130, the second gear transmission mechanism 130 comprises a third gear 131a and a fourth gear 131b meshed with the third gear 131a, the second gear 121b has a third output shaft 122, the third gear 131a is connected with the third output shaft 122, the fourth gear 131b has a fourth output shaft 132, and the saw blade 300 is connected with the fourth output shaft 132.

The saw cutting speed reducing device 100 adopts a three-stage speed reducing transmission mechanism, so that the rotating speed and the increasing torque of the saw blade 300 are greatly reduced, the linear speed and the moment suitable for copper alloy saw cutting can be achieved when the saw blade 300 works, and the saw cutting effect is ensured.

The third gear 131a and the fourth gear 131b each include a ring-shaped second gear body having a second outer peripheral surface 1311, the second outer peripheral surface 1311 being symmetrically provided with a plurality of third teeth 1312 and a plurality of fourth teeth 1313 on both sides thereof with a central portion in the axial direction as a boundary, and helix angles of the third teeth 1312 and the fourth teeth 1313 being opposite to each other. That is, the third tooth 1312 and the fourth tooth 1313 are helical teeth, and compared with a spur gear, the helical teeth have a large bearing capacity and operate stably. When the third gear 131a and the fourth gear 131b mesh with each other to transmit torque, the loads generated by the third tooth 1312 and the fourth tooth 1313 face opposite directions to each other on both sides bordered by the center portion in the axial direction, and the loads generated in the opposite directions cancel each other as described above.

In some embodiments, as shown in fig. 1 and 2, the belt transmission mechanism 110 includes a first pulley 112, a transmission belt 113, and a second pulley 114, two ends of the transmission belt 113 are respectively sleeved on the first pulley 112 and the second pulley 114, the first output shaft 210 is connected to the first pulley 112, and the second output shaft 111 is disposed on the second pulley 114. When a clamping stagnation occurs during sawing, the transmission belt 113 slips to protect the motor 200, the first output shaft 210, and the parts of the first gear mechanism 120 and the second gear mechanism 130.

Another embodiment of the present utility model, as shown in fig. 3 and 4, further provides a sawing apparatus comprising a motor 200, a saw blade 300 and a sawing deceleration device 100; the saw blade 300 is connected to the motor 200 through the saw cut reduction device 100.

The specific structure of the sawing deceleration device 100 refers to the above embodiment, and since the sawing device adopts all the technical solutions of all the embodiments, the sawing deceleration device at least has all the beneficial effects brought by the technical solutions of the embodiments, and will not be described in detail herein.

In some embodiments, as shown in fig. 3 and 4, the sawing device further comprises a swing bracket 400 and a driving means 500. The bottom of the swing bracket 400 is rotatably connected to a mounting surface, and the sawing deceleration device 100, the motor 200 and the saw blade 300 are all disposed on the swing bracket 400. The driving device 500 is drivingly connected to the swing frame 400, and the swing frame 400 swings to feed the saw blade 300.

The sawing device drives the swinging bracket 400 to swing through the driving device 500 so as to complete the feeding of sawing the objects to be sawed. Compared with the manual sawing control mode in the prior art, the utility model has the advantages of high efficiency, high sawing precision and good sawing quality.

In some embodiments, as shown in fig. 3 and 4, the swing bracket 400 includes a triangular support structure 410, the bottom of the triangular support structure 410 has a connection angle 411, a swing shaft 412 is provided on the connection angle 411, a first connection seat 600 is provided on a mounting surface, and the swing shaft 412 is rotatably connected to the first connection seat 600, so that any one side of the triangular support structure 410 is not interfered when it swings. The saw speed reducer 100, motor 200, and saw blade 300 are all fixed in a position with the connection angle 411 being opposite to each other so that the triangular support structure 410 better carries the weight of the saw speed reducer 100, motor 200, and saw blade 300.

The present utility model utilizes a triangular support structure 410 to support the main components. The triangular support structure 410 has advantages of structural stability and good load bearing performance due to its shape.

In some embodiments, as shown in fig. 3 and 4, the triangular support structure 410 includes a first linear support 413, a second linear support 414, and a third linear support 415, the first linear support 413, the second linear support 414, and the third linear support 415 being connected in a triangle. The connection angle 411 is provided at the connection of the first linear bearing 413 and the second linear bearing 414, and the third linear bearing 415 is located at the opposite side of the connection angle 411.

In some embodiments, the driving device 500 is an oil cylinder, the oil cylinder has a piston rod 510 and a cylinder body 520, the cylinder body 520 is rotatably fixed on the swing bracket 400, a second connecting seat 700 is provided on the installation surface, and the piston rod 510 extends downward and the end thereof is rotatably fixed on the second connecting seat 700.

The oil cylinder driving has the advantages that: the feeding speed is regulated and controlled by regulating the speed of the oil cylinder, so that the bearing capacity of equipment operation is ensured, and the stability and reliability of the saw blade 300 during operation are ensured.

In some embodiments, as shown in fig. 3 and fig. 4, the third linear supporting member 415 is provided with a mounting bracket 420, the sawing reduction device 100, the motor 200 and the saw blade 300 are all arranged on the mounting bracket 420, one side of the mounting bracket 420, which is close to the oil cylinder, is provided with a fourth linear supporting member 421, and the fourth linear supporting member 421 is connected with the cylinder body 520 to form an included angle structure, so that the structure formed by the oil cylinder and the mounting bracket 420 is more stable, and the bearing performance is better.

In some embodiments, as shown in fig. 3 and 4, to avoid that the motor 200 and the saw blade 300 are located on the same side of the triangular support structure 410, resulting in excessive concentration of weight on one side of the triangular support structure 410, the center of gravity of the motor 200 and the center of gravity of the saw blade 300 are located on both sides of the center of gravity of the triangular support structure 410, respectively. A third connecting seat is provided at the top of the swing bracket 400 at the outer side of the motor 200, and the cylinder 520 is rotatably connected to the third connecting seat. In this way, the cylinders can more effort-effectively drive the triangular support structure 410 to swing.

While the foregoing is directed to the preferred embodiments of the present utility model, it will be appreciated by those skilled in the art that changes and modifications may be made without departing from the principles of the utility model, such changes and modifications are also intended to be within the scope of the utility model.

Claims

1. A sawing speed reducing device for connecting a motor and a saw blade, the motor having a first output shaft; the sawing speed reducing device is characterized by comprising:

2. The sawing deceleration device as defined in claim 1, further comprising:

3. The sawing deceleration device as claimed in claim 1 or 2, wherein the belt transmission mechanism comprises a first belt pulley, a transmission belt and a second belt pulley, both ends of the transmission belt are respectively sleeved on the first belt pulley and the second belt pulley, the first output shaft is connected with the first belt pulley, and the second output shaft is arranged on the second belt pulley.

4. Sawing device, characterized by comprising a motor, a saw blade and a sawing deceleration device according to any one of claims 1 to 3; the saw blade is connected with the motor through the sawing speed reducing device.

5. The sawing apparatus as set forth in claim 4, further comprising:

6. Sawing apparatus as claimed in claim 5, characterized in that the oscillating support comprises a triangular support structure, the bottom of which has a connection angle, on which an oscillating shaft is arranged, on which the mounting surface a first connection seat is arranged, which oscillating shaft is rotatably connected to the first connection seat;

7. Sawing apparatus as claimed in claim 6, characterized in that the triangular support structure comprises a first linear support, a second linear support and a third linear support, which are connected in a triangle;

8. Sawing apparatus as claimed in claim 7, characterized in that the drive means are cylinders with a piston rod and a cylinder body, which cylinder body is rotatably fixed to the oscillating bracket, the mounting surface being provided with a second connecting seat, the piston rod extending downwards and the end of which is rotatably fixed to the second connecting seat.

9. The sawing apparatus as claimed in claim 8, wherein a mounting bracket is provided on the third linear bearing, the sawing deceleration device, the motor and the saw blade are all provided on the mounting bracket, a fourth linear bearing is provided on a side of the mounting bracket near the cylinder, and the fourth linear bearing is connected to the cylinder body to form an angle structure.

10. Sawing apparatus as claimed in claim 8 or 9, characterized in that the centre of gravity of the motor and the centre of gravity of the saw blade are located on both sides of the centre of gravity of the triangular support structure, respectively, a third connecting seat is provided on the outside of the motor at the top of the oscillating bracket, on which third connecting seat the cylinder is rotatably connected.