Vertical shaft cutting machine

Abstract

The vertical shaft cutting machine comprises a driving part, a gearbox and a cutting part which are sequentially connected, the cutting part is provided with a protective cover, a protective cover pull rod is arranged between the driving part and the protective cover, one end of the protective cover pull rod is hinged to the driving part, the other end of the protective cover pull rod is hinged to the protective cover, and the protective cover is used for supporting the protective cover to keep upright. Therefore, synchronous rotation of the protective cover and the cutting part is achieved. The protective cover pull rod is a parallelogram protective cover pull rod and comprises a first fixed rod, a first movable rod, a second fixed rod and a second movable rod which are sequentially connected end to end, the first fixed rod is fixedly connected to the protective cover, the second fixed rod is fixedly connected to the driving part, and the first movable rod is hinged to the first fixed rod and the second fixed rod; the second movable rod is hinged to the first fixed rod and the second fixed rod. The water throwing device is simple in structure, reasonable in design, high in practicability, capable of being used in a small foundation pit, free of cutting dead angles and capable of cutting against a wall, the water throwing problem is solved, efficiency is high, and the cost of quick-wear parts is reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of cutting machines, in particular to a shaft cutting machine. Background Art

[0002] At present, when we encounter hard rock in square foundation pits, vertical shafts, square shafts, ventilation shafts, etc., we mainly use water-grinding drills and cutting machines used in previous mining.

[0003] Water-driven drills are inefficient and require a lot of manpower, but their advantage is their compact size and wide range of motion. Mining cutters, used in pits, offer high cutting efficiency and low cost. However, due to their round blades, they can't cut through corners, and even miss two corners entirely. This complicates and cumbersome subsequent material removal, significantly increasing costs and reducing efficiency. Furthermore, if the pit is too small, virtually nothing can be cut. Mining cutters lack wireless remote controls, and the saw blades can't reverse during cutting. Cooling water splashes everywhere, disturbing the operator, and the water splashing affects subsequent grouting.

[0004] Therefore, how to solve the problems existing in the prior art has become the direction of efforts of those skilled in the art. Utility Model Content

[0005] The purpose of this utility model is to provide a shaft cutting machine that can completely solve the shortcomings of the above-mentioned prior art.

[0006] The purpose of this utility model is achieved through the following technical solutions:

[0007] A shaft cutting machine includes a driving part, a gearbox and a cutting part connected in sequence. The cutting part is provided with a protective cover. A protective cover pull rod is provided between the driving part and the protective cover. One end of the protective cover pull rod is hinged to the driving part, and the other end is hinged to the protective cover. It is used to support the protective cover to remain upright, thereby realizing synchronous rotation of the protective cover and the cutting part.

[0008] Furthermore, the shield pull rod is a parallelogram shield pull rod, including a first fixed rod, a first movable rod, a second fixed rod and a second movable rod connected in sequence end to end, the first fixed rod is fixedly connected to the protective shield, the second fixed rod is fixedly connected to the driving part, the first movable rod is hinged to the first fixed rod and the second fixed rod respectively, and the second movable rod is hinged to the first fixed rod and the second fixed rod respectively.

[0009] Furthermore, the driving part includes a base plate, on which a power unit, a travel motor, a rotating motor and a support frame are installed. The transmission shaft of the power unit passes through the support frame and is connected to the gearbox. The rotating motor is connected to a slewing drive device, which is installed on the support frame. At the same time, the slewing drive device is connected to the outer casing of the gearbox, thereby realizing the rotation of the entire gearbox. The travel motor is used to drive the entire shaft cutting machine to move, and a second fixed rod is fixed on the top of the support frame.

[0010] Furthermore, the power unit is a main motor or a hydraulic motor.

[0011] Furthermore, the gearbox is a semi-trailer direct-connected gearbox, the interior of which is configured as a multi-stage gear transmission reduction, and the drive shaft of the main motor is connected to the power input gear of the gearbox.

[0012] Furthermore, the gearbox is configured with a single-row gear transmission or a chain transmission, and is connected to the transmission shaft of the hydraulic motor.

[0013] Furthermore, the exhaust port of the gearbox is provided with a rotary joint, the rotary joint is connected to an exhaust pipe, the end of the exhaust pipe is provided with an exhaust cap, and the exhaust cap is installed on the top of the support frame.

[0014] Furthermore, a flange is installed on the saw blade clamp of the cutting part, and the flange is used to install the saw blade.

[0015] Furthermore, the protective cover is a hard protective cover, and a soft protective cover is connected to the outer side of the hard protective cover.

[0016] Compared with the existing technology, the beneficial effects of the utility model are: simple structure, reasonable design, strong practicality, can be used in small foundation pits, no dead angles in cutting, can cut against the wall, solves the problem of water throwing, provides operators with a better working environment, improves efficiency, and reduces the cost of wearing parts. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural diagram of the present utility model.

[0018] Figure 2 It is the main view of the present utility model.

[0019] Figure 3 It is a structural diagram of the shield pull rod.

[0020] Figure 4 It is a structural diagram of the protective cover and the soft cover.

[0021] Figure 5 This is the gear meshing relationship diagram of the gearbox.

[0022] Figure markings: gearbox 1, base plate 4, main motor 5, travel motor 6, rotating motor 7, support frame 8, rotary drive device 9, travel wheel 10, protective cover 11, protective cover pull rod 12, first fixed rod 1201, first movable rod 1202, second fixed rod 1203, second movable rod 1204, first gear 30, second gear 31, third gear 32, fourth gear 33, fifth gear 34, sixth gear 35, seventh gear 36, eighth gear 37, saw blade clamp 40, saw blade 41, rotary joint 42, exhaust pipe 43, exhaust cap 44, flange 45, soft protective cover 1101. DETAILED DESCRIPTION

[0023] In order to enable those skilled in the art to better understand the present invention, the following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts should fall within the scope of protection of this application.

[0024] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects and are not necessarily used to describe a specific order or sequential order. It should be understood that the data used in this way can be interchanged where appropriate, so that the embodiments of the present application described here. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions. For example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0025] In this application, terms such as "upper," "lower," "left," "right," "front," "back," "top," "bottom," "inner," "outer," "center," "vertical," "horizontal," "transverse," and "longitudinal" indicate positions or locations based on the positions or locations shown in the accompanying drawings. These terms are primarily intended to better describe this application and its embodiments and are not intended to limit the devices, elements, or components indicated to having a specific orientation, or to being constructed or operated in a specific orientation.

[0026] Furthermore, some of the above terms may be used to express other meanings besides indicating a position or location. For example, the term "on" may also be used to indicate a dependency or connection in certain circumstances. Those skilled in the art will understand the specific meanings of these terms in this application based on the specific circumstances.

[0027] Additionally, the term "plurality" shall mean two or more.

[0028] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments in this application can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0029] Example 1

[0030] like Figure 1 and Figure 2 As shown, a shaft cutting machine includes a drive unit, a gearbox 1, and a cutting unit connected in sequence. The drive unit includes a base plate 4, on which are mounted a main motor 5, a travel motor 6, a rotary motor 7, and a support frame 8. The drive shaft of the main motor 5 passes through the support frame 8 and is connected to the gearbox 1 to provide power for the cutting unit. The rotary motor 7 is connected to a rotary drive device 9, which is mounted on the support frame 8 and is connected to the outer shell of the gearbox 1. The rotary motor 7 provides power to the rotary drive device 9, which drives the entire gearbox 1 to achieve 360-degree rotation. Travel wheels 10 are mounted at the bottom of the base plate 4, and the travel wheels 10 are matched with tracks. During the cutting process, the travel motor 6 drives the entire shaft cutting machine to move slowly on the tracks. To provide safety protection, the drive unit is equipped with a housing that covers the entire drive unit, protecting the motor and other components on the drive unit, preventing water from splashing into the drive unit, and ensuring safe operation.

[0031] The cutting part is provided with a protective cover 11, and a protective cover pull rod 12 is provided between the driving part and the protective cover 11. One end of the protective cover pull rod 12 is hinged to the driving part, and the other end is hinged to the protective cover 11, which is used to support the protective cover 11 to remain upright at all times, thereby realizing the synchronous 360-degree rotation of the protective cover 11 and the cutting part.

[0032] like Figure 3 As shown, the shield pull rod 12 is a parallelogram-shaped shield pull rod, including a first fixed rod 1201, a first movable rod 1202, a second fixed rod 1203, and a second movable rod 1204 connected end to end. The first fixed rod 1201 is fixedly connected to the shield 11, and the second fixed rod 1203 is fixedly connected to the top of the support frame 8 of the drive unit. The first movable rod 1202 is hinged to the first and second fixed rods 1201 and 1203, respectively, and the second movable rod 1204 is hinged to the first and second fixed rods 1201 and 1203, respectively. The hinge method is preferably a fisheye universal joint. The first and second movable rods 1202 and 1204 can be configured as adjustable movable rods to facilitate installation and commissioning.

[0033] The gearbox 1 is a semi-hook direct-connected gearbox, which is internally configured as a multi-stage gear transmission reduction gearbox, preferably a helical gear, which can be configured as three rows. The gears are the first gear 30 of Z22, the second gear 31 of Z33, the third gear 32 of Z19, the fourth gear 33 of Z33, the fifth gear 34 of Z19, the sixth gear 35 of Z33, the seventh gear 36 of Z27, and the eighth gear 37 of Z29. The first gear 30 is a power input gear, which is connected to the transmission shaft of the main motor 5. The eighth gear 37 is a power output gear, which is connected to the saw blade clamp 40. The meshing method is that the first gear 30 is meshed with the second gear 31, the second gear 31 and the third gear 32 are coaxial, the third gear 32 is meshed with the fourth gear 33, the fourth gear 33 and the fifth gear 34 are coaxial, the fifth gear 34 is meshed with the sixth gear 35, the sixth gear 35 is coaxial with the seventh gear 36, and the seventh gear 36 is meshed with the eighth gear 37, as shown in FIG. Figure 5 The advantages of a semi-trailer direct-connected gearbox are that it can achieve 360-degree rotation without the need for a chain device in the middle; it can reduce the size of the machine, without the need for a belt drive, and directly reduce speed through a multi-stage gear drive; and it can achieve forward and reverse rotation of the saw blade 41, a function that is difficult to achieve with chain drives and other methods.

[0034] The exhaust port of the gearbox 1 is provided with a rotary joint 42, which is connected to an exhaust pipe 43. The end of the exhaust pipe 43 is provided with an exhaust cap 44, which is mounted on the top of the support frame 8. Because the gearbox 1 needs to rotate 360 ​​degrees, the exhaust cap can only rotate halfway 180 degrees, and oil will leak when it reaches the other side. Therefore, this design raises the exhaust cap 44 and makes a rotary joint 42 on the gearbox 1.

[0035] The conventional saw blade clamp 40 is two clamps clamping the saw blade 41, and a large nut is tightened to use friction to drive the saw blade 41. However, a large nut cannot be tightened in the reverse direction. In order to achieve forward and reverse rotation, multiple countersunk screws are used to drive the saw blade 41 to rotate.

[0036] like Figure 1 and Figure 4 As shown, to enable wall cutting, an intermediate flange 45 is mounted on the saw blade clamp 40, and the saw blade 41 is then mounted on the flange 45. The protective cover 11 is a hard cover, and a soft cover 1101 is connected to the outside of the hard cover. This allows the saw blade 41 to extend into the soft cover 1101, enabling close-to-wall cutting. Furthermore, a portion of the protective cover 11 can be opened and closed. When cutting in tight corners, the protective cover 11 can be opened to expose more of the saw blade 41, facilitating cutting in tight areas.

[0037] The shaft cutting machine may also include a wireless remote controller, and the machine can be operated by wireless remote control, which is very convenient.

[0038] Example 2

[0039] Unlike Example 1, a hydraulic motor, travel motor 6, rotary motor 7, and support frame 8 are mounted on the base plate 4. The hydraulic motor's drive shaft passes through the support frame 8 and connects to the gearbox 1, providing power to the cutting unit. The gearbox 1, which matches the hydraulic motor, has an internal transmission structure using either a single-row gear drive or a chain drive.

[0040] No matter whether the main motor 5 or the hydraulic motor is used, the functions and effects achieved are the same.

[0041] The utility model has the advantages of simple structure, reasonable design and strong practicality. It can be used in small foundation pits, has no dead angle in cutting and can cut against walls. It solves the problem of water throwing, provides operators with a better working environment, improves efficiency and reduces the cost of wearing parts.

[0042] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A shaft cutting machine comprising a driving unit, a gearbox and a cutting unit connected in sequence, wherein the cutting unit is provided with a protective cover, and wherein: A shield pull rod is provided between the driving part and the shield. One end of the shield pull rod is hinged to the driving part, and the other end is hinged to the shield. It is used to support the shield to remain upright, thereby realizing synchronous rotation of the shield and the cutting part.

2. The shaft cutting machine according to claim 1, characterized in that: The shield pull rod is a parallelogram shield pull rod, including a first fixed rod, a first movable rod, a second fixed rod and a second movable rod connected in sequence end to end. The first fixed rod is fixedly connected to the protective shield, the second fixed rod is fixedly connected to the driving part, the first movable rod is hinged to the first fixed rod and the second fixed rod respectively, and the second movable rod is hinged to the first fixed rod and the second fixed rod respectively.

3. The shaft cutting machine according to claim 2, characterized in that: The driving part includes a base plate, on which a power unit, a travel motor, a rotating motor and a support frame are installed. The transmission shaft of the power unit passes through the support frame and is connected to the gearbox. The rotating motor is connected to a slewing drive device, which is installed on the support frame. At the same time, the slewing drive device is connected to the outer casing of the gearbox, thereby realizing the rotation of the entire gearbox. The travel motor is used to drive the entire shaft cutting machine to move, and a second fixed rod is fixed on the top of the support frame.

4. The shaft cutting machine according to claim 3, characterized in that: The power unit is a main motor or a hydraulic motor.

5. The shaft cutting machine according to claim 4, characterized in that: The gearbox is a semi-trailer direct-connected gearbox, which is internally configured with multi-stage gear transmission reduction, and the drive shaft of the main motor is connected to the power input gear of the gearbox.

6. The shaft cutting machine according to claim 4, characterized in that: The gearbox is set to a single-row gear drive or a chain drive, and is connected to the drive shaft of the hydraulic motor.

7. The shaft cutting machine according to claim 5 or 6, characterized in that: The exhaust port of the gearbox is provided with a rotary joint, the rotary joint is connected to an exhaust pipe, the end of the exhaust pipe is provided with an exhaust cap, and the exhaust cap is installed on the top of the support frame.

8. The shaft cutting machine according to claim 1, characterized in that: A flange is installed on the saw blade clamp of the cutting part, and the flange is used for installing the saw blade.

9. The shaft cutting machine according to claim 7, characterized in that: The protective cover is a hard protective cover, and a soft protective cover is connected to the outer side of the hard protective cover.

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