A blade disc structure with overlap

Abstract

This utility model discloses an overlapping cutter head structure, including multiple drive motors, a gearbox, and multiple sets of grinding cutter heads. The gearbox contains multiple sets of motor transmission mechanisms located at the same horizontal height. Each drive motor drives a corresponding set of grinding cutter heads through a corresponding set of motor transmission mechanisms. Each set of motor transmission mechanisms includes one motor gear and two cutter head drive gears. Each set of grinding cutter heads includes a front grinding cutter head and a rear grinding cutter head. All sets of grinding cutter heads are located at the same horizontal height, with a row of front grinding cutter heads and a row of rear grinding cutter heads arranged crosswise and partially overlapping in both the horizontal and vertical directions. This utility model uses multiple overlapping cutter heads for grinding and milling operations, achieving overlapping arrangement of multiple cutter heads within a limited space. Furthermore, the working planes of multiple cutter heads are at the same height. During construction, no grinding steps are created in the overlapping parts, resulting in high grinding efficiency and good grinding effect.

Description

Technical Field

[0001] This utility model relates to the field of grinding and milling machine technology, specifically a cutter head structure with overlap. Background Technology

[0002] Most existing grinding and milling machines use a single cutter head, which comes in multiple sizes to suit different grinding needs. Depending on the actual operation, when grinding or milling a large area, a small cutter head can be used in reciprocating motions until the entire surface is ground or milled; alternatively, a large cutter head can be used to grind or mill the entire surface in one pass. In some operating environments, space is limited, making it unsuitable to use large cutter heads for grinding and milling, but the working area is large, and using small cutter heads would result in low efficiency. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide a cutter head structure with overlap, which uses multiple cutter heads with overlap to perform grinding and milling operations. Multiple cutter heads are arranged in an overlapping manner in a limited space, and the working planes of multiple cutter heads are at the same height. During construction, no grinding steps are generated in the overlapping part, resulting in high grinding efficiency and good grinding effect.

[0004] The technical solution of this utility model is as follows:

[0005] An overlapping cutter head structure includes multiple drive motors, a gearbox, and multiple sets of grinding cutter heads. The gearbox is equipped with multiple sets of motor transmission mechanisms located at the same horizontal height. Each drive motor drives a corresponding set of grinding cutter heads to rotate through a corresponding set of motor transmission mechanisms. Each set of motor transmission mechanisms includes one motor gear and two cutter head drive gears. Each set of grinding cutter heads includes a front grinding cutter head and a rear grinding cutter head.

[0006] The drive shaft of each drive motor extends downward into the gearbox and is fixedly connected to a corresponding motor gear. Two cutter head drive gears are located on both sides of the corresponding motor gear and are meshed with the motor gear respectively. A cutter head shaft is fixedly connected to each of the two cutter head drive gears. The bottom ends of the two cutter head shafts extend downward to the outside of the gearbox. Each set of grinding cutter heads is located directly below the gearbox and is fixedly connected to the corresponding two cutter head shafts.

[0007] Multiple grinding discs are located at the same horizontal height. All the front grinding discs in the multiple grinding discs are arranged in a row along the horizontal direction, and all the rear grinding discs in the multiple grinding discs are arranged in a row along the horizontal direction. A row of front grinding discs and a row of rear grinding discs are arranged in an alternating pattern and partially overlap along the longitudinal direction, so that the width of each grinding disc group along the longitudinal direction is less than the sum of the diameters of the front and rear grinding discs. The front and rear grinding discs in each grinding disc group partially overlap along the horizontal direction, and in two adjacent grinding disc groups, the middle adjacent front and rear grinding discs also partially overlap along the horizontal direction, so that the length of each grinding disc group along the horizontal direction is less than the sum of the diameters of the front and rear grinding discs, and the total length of the multiple grinding disc groups along the horizontal direction is less than the sum of the lengths of the multiple grinding disc groups along the horizontal direction.

[0008] The front and rear grinding discs have the same diameter.

[0009] The longitudinal width of each grinding disc is 1.4-1.6 times the diameter of the front grinding disc.

[0010] The gearbox consists of a top plate and a cutter head mounting plate. The cutter head mounting plate is a cover structure with an open top. The top plate is fixedly connected to the top of the cutter head mounting plate with screws. Multiple drive motors are evenly arranged in a row along the transverse direction and fixedly connected to the top surface of the top plate. Multiple cutter head mounting shafts are installed on the bottom end of the cutter head mounting plate. The top ends of the multiple cutter head mounting shafts are engaged with the corresponding cutter head shafts inside the gearbox. The front grinding cutter head and the rear grinding cutter head are connected to the bottom ends of the corresponding cutter head mounting shafts.

[0011] A mounting plate is fixedly connected to the bottom end of the blade mounting shaft, and the central part of the front or rear grinding blade is fixedly connected to the mounting plate by multiple screws.

[0012] The drive motors are two in number, and the gearbox contains two sets of motor transmission mechanisms. There are two sets of grinding discs, with the two front grinding discs and the two rear grinding discs arranged in a Z-shape.

[0013] Advantages of this utility model:

[0014] (1) This utility model arranges multiple grinding discs in an overlapping manner, which realizes the close arrangement of multiple discs in a limited space and enables rapid grinding of large working surfaces.

[0015] (2) The two front grinding discs and two rear grinding discs of this utility model are arranged in a Z-shape. During operation, the four grinding discs will not collide or interfere with each other, thus achieving rapid grinding of a large working surface.

[0016] (3) The present invention has a drive motor that drives the front grinding disc and the rear grinding disc simultaneously and has the same rotation speed. By selecting the gear ratio of the disc drive gear and the motor gear, the rotation speed and torque of the grinding disc can be changed, thereby achieving appropriate grinding and milling force, grinding and milling efficiency and grinding and milling effect.

[0017] (4) The front and rear grinding discs of this utility model are mounted on the disc mounting plate through corresponding disc mounting shafts, so that the horizontal height of all the front and rear grinding discs is consistent, and the working planes of the four grinding discs are at the same height. The grinding and milling effect is equivalent to the grinding effect of a large disc. During construction, no grinding steps are generated in the overlapping parts, and the grinding is smooth.

[0018] (5) The gearbox of this utility model is an integral structure, which ensures the stability of the installation structure of all front grinding cutter discs and rear grinding cutter discs.

[0019] (6) Both the front and rear grinding discs of this utility model are consumable parts. The central part of the front or rear grinding disc is fixed to the mounting plate by multiple screws, which makes it easy to quickly replace the new disc according to the wear condition of the disc. Attached Figure Description

[0020] Figure 1 This is a longitudinal sectional view of the present invention.

[0021] Figure 2 This is a plan view of the present invention.

[0022] Reference numerals: 1-Drive motor, 2-Motor gear, 3-Cutter head drive gear, 4-Front grinding cutter head, 5-Rear grinding cutter head, 6-Top plate, 7-Cutter head mounting plate, 8-Cutter head shaft, 9-Cutter head mounting shaft, 10-Mounting plate. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] See Figure 1 and Figure 2An overlapping cutter head structure includes two drive motors 1, a gearbox and two sets of grinding cutter heads. The gearbox is equipped with two sets of motor transmission mechanisms located at the same horizontal height. Each drive motor 1 drives the corresponding set of grinding cutter heads to rotate through the corresponding set of motor transmission mechanisms. Each set of motor transmission mechanisms includes one motor gear 2 and two cutter head drive gears 3. Each set of grinding cutter heads includes a front grinding cutter head 4 and a rear grinding cutter head 5. The front grinding cutter head 4 and the rear grinding cutter head 5 have the same diameter.

[0025] The gearbox consists of a top plate 6 and a cutter head mounting plate 7. The cutter head mounting plate 7 is a cover structure with an open top. The top plate 6 is fixedly connected to the top of the cutter head mounting plate 7 by screws. Two drive motors 1 are arranged in a row along the transverse direction and fixedly connected to the top surface of the top plate 6. The drive shaft of each drive motor 1 extends downward into the gearbox and is fixedly connected to a corresponding motor gear 2. Two cutter head drive gears 3 are located on both sides of the corresponding motor gear 2 and are respectively meshed with the motor gear 2. A cutter head rotating shaft 8 is fixedly connected to each of the two cutter head drive gears 3. Four cutter head mounting shafts 9 are installed on the bottom end of the cutter head mounting plate 7. The top ends of the four cutter head mounting shafts 9 are engaged with the corresponding cutter head rotating shafts 8 in the gearbox. A mounting plate 10 is fixedly installed on the bottom end of the cutter head mounting shafts 9. Both sets of grinding cutter heads are located directly below the gearbox. The center part of the front grinding cutter head 4 or the rear grinding cutter head 5 is fixedly connected to the mounting plate 10 by multiple screws.

[0026] Both sets of grinding discs are located at the same horizontal height. The two front grinding discs 4 are arranged in a row along the horizontal direction, and the two rear grinding discs 5 are arranged in a row along the horizontal direction. The row of front grinding discs 4 and the row of rear grinding discs 5 are arranged in a cross pattern and partially overlap along the longitudinal direction. The front grinding discs 4 and rear grinding discs 5 in each set of grinding discs partially overlap along the horizontal direction. In two adjacent sets of grinding discs, the middle adjacent front grinding discs 4 and rear grinding discs 5 also partially overlap along the horizontal direction, so that the two front grinding discs 4 and the two rear grinding discs 5 form a Z-shaped arrangement. The width of each set of grinding discs along the longitudinal direction is 1.5 times the diameter of the front grinding disc 4 (or rear grinding disc 5). The length of each set of grinding discs along the horizontal direction is less than the sum of the diameters of the front grinding discs 4 and the rear grinding discs 5. The total length of the two sets of grinding discs along the horizontal direction is less than the sum of the lengths of the two sets of grinding discs along the horizontal direction.

[0027] A grinding method with an overlapping cutter head structure: First, two drive motors 1 start synchronously. The two drive motors 1 drive four cutter head shafts 8 to rotate synchronously through corresponding motor transmission mechanisms. The four cutter head shafts 8 drive two front grinding cutter heads 4 and two rear grinding cutter heads 5 located at the same horizontal height to perform synchronous grinding on the sleeper bearing surface through the cutter head mounting shaft 9. The working planes of the two sets of grinding cutter heads are at the same height, and the overlapping parts of adjacent front grinding cutter heads 4 and rear grinding cutter heads 5 in the horizontal and vertical directions do not produce steps.

[0028] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A cutter head structure with overlap, characterized in that: It includes multiple drive motors, gearboxes and multiple sets of grinding discs. The gearbox is equipped with multiple sets of motor transmission mechanisms at the same horizontal level. Each drive motor drives the corresponding set of grinding discs to rotate through a corresponding set of motor transmission mechanisms. Each set of motor transmission mechanisms includes one motor gear and two disc drive gears. Each set of grinding discs includes a front grinding disc and a rear grinding disc. The drive shaft of each drive motor extends downward into the gearbox and is fixedly connected to a corresponding motor gear. Two cutter head drive gears are located on both sides of the corresponding motor gear and are meshed with the motor gear respectively. A cutter head shaft is fixedly connected to each of the two cutter head drive gears. The bottom ends of the two cutter head shafts extend downward to the outside of the gearbox. Each set of grinding cutter heads is located directly below the gearbox and is fixedly connected to the corresponding two cutter head shafts. Multiple grinding discs are located at the same horizontal height. All the front grinding discs in the multiple grinding discs are arranged in a row along the horizontal direction, and all the rear grinding discs in the multiple grinding discs are arranged in a row along the horizontal direction. A row of front grinding discs and a row of rear grinding discs are arranged in an alternating pattern and partially overlap along the longitudinal direction, so that the width of each grinding disc group along the longitudinal direction is less than the sum of the diameters of the front and rear grinding discs. The front and rear grinding discs in each grinding disc group partially overlap along the horizontal direction, and in two adjacent grinding disc groups, the middle adjacent front and rear grinding discs also partially overlap along the horizontal direction, so that the length of each grinding disc group along the horizontal direction is less than the sum of the diameters of the front and rear grinding discs, and the total length of the multiple grinding disc groups along the horizontal direction is less than the sum of the lengths of the multiple grinding disc groups along the horizontal direction.

2. The blade disc structure with overlap according to claim 1, characterized in that: The front and rear grinding discs have the same diameter.

3. The blade disc structure with overlap according to claim 2, characterized in that: The longitudinal width of each grinding disc is 1.4-1.6 times the diameter of the front grinding disc.

4. The blade disc structure with overlap according to claim 2, characterized in that: The gearbox consists of a top plate and a cutter head mounting plate. The cutter head mounting plate is a cover structure with an open top. The top plate is fixedly connected to the top of the cutter head mounting plate with screws. Multiple drive motors are evenly arranged in a row along the transverse direction and fixedly connected to the top surface of the top plate. Multiple cutter head mounting shafts are installed on the bottom end of the cutter head mounting plate. The top ends of the multiple cutter head mounting shafts are engaged with the corresponding cutter head shafts inside the gearbox. The front grinding cutter head and the rear grinding cutter head are connected to the bottom ends of the corresponding cutter head mounting shafts.

5. The blade disc structure with overlap according to claim 4, characterized in that: A mounting plate is fixedly connected to the bottom end of the blade mounting shaft, and the central part of the front or rear grinding blade is fixedly connected to the mounting plate by multiple screws.

6. The blade disc structure with overlap according to claim 1, characterized in that: The drive motors are two in number, and the gearbox contains two sets of motor transmission mechanisms. There are two sets of grinding discs, with the two front grinding discs and the two rear grinding discs arranged in a Z-shape.

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