Automatic dismounting device for hobbing cutter

Abstract

The invention discloses an automatic dismounting device for a hobbing cutter, which belongs to the technical field of machine manufacturing and comprises a base, and a motor mounting seat, a speed reducer mounting seat I and a speed reducer mounting seat II are arranged on the base; a motor body is arranged on the motor mounting seat, a speed reducer I is arranged on the speed reducer mounting seat I, and a speed reducer II is arranged on the speed reducer mounting seat II; an output shaft of the motor body is connected with a small belt wheel, the small belt wheel is connected with a large belt wheel through a belt, the large belt wheel is arranged on an input shaft of a first speed reducer, an output shaft of the first speed reducer is connected with a first coupler, the first coupler is connected with an input shaft of a second speed reducer through a second coupler, and an output shaft of the second speed reducer is connected with a third coupler. The third coupler is connected with a connecting piece through a fourth coupler, and the connecting piece is connected with a dismounting head used for dismounting a cutter. By adopting the structure, the automatic dismounting device for the hobbing cutter can solve the problems that the labor intensity of manual operation is high, the dismounting efficiency is low, the rejection rate of the whole cutter is high and the universality of equipment is poor.

Description

Technical Field

[0001] The present invention relates to the technical field of mechanical manufacturing, and in particular to an automatic hob disassembly device. Background Art

[0002] The hob is a key component of equipment such as tunnel boring machines and shield machines, directly acting on the rock and soil excavation surface and undertaking core functions such as rock breaking and cutting. Its working environment is harsh (such as high load, impact vibration, wear, etc.), resulting in a frequent replacement requirement.

[0003] In the prior art, the disassembly of the hob mainly relies on manual hammering, which has the following defects: 1. Manual operation has a high labor intensity and low disassembly efficiency (especially for large-diameter tools); 2. For hobs that have not been disassembled for a long time or have slightly damaged threads, manual disassembly is impossible, resulting in tool scrapping; 3. Special tooling needs to be equipped for different specifications of tools, and the equipment has poor versatility; 4. Manual violent disassembly is likely to damage the connecting threads. Summary of the Invention

[0004] The purpose of the present invention is to provide an automatic hob disassembly device to solve the problems of high labor intensity of manual operation, low disassembly efficiency, high whole tool scrapping rate, and poor equipment versatility.

[0005] To achieve the above purpose, the present invention provides an automatic hob disassembly device, which includes a base. On the base, there are a motor mounting seat, a reducer mounting seat one, a reducer mounting seat two, a backing plate one, a fixing plate, and a rib plate; a motor body is arranged on the motor mounting seat, a reducer one is arranged on the reducer mounting seat one, and a reducer two is arranged on the reducer mounting seat two; the output shaft of the motor body is connected to a small pulley, the small pulley is connected to a large pulley through a belt, the large pulley is arranged on the input shaft of the reducer one, the output shaft of the reducer one is connected to a coupling one, the coupling one is connected to the input shaft of the reducer two through a coupling two, the output shaft of the reducer two is connected to a coupling three, and the coupling three is connected to a connecting piece through a coupling four. The connecting piece is connected to a disassembly head for disassembling the tool.

[0006] Preferably, the rib plates are symmetrically arranged on both sides of the fixing plate. On the fixing plate, there are a hob and a fixing block for fixing the hob. The hob includes a hob body, and a left tool shaft and a right tool shaft are respectively arranged on both sides of the hob body.

[0007] Preferably, the fixing block is provided with a through hole three adapted to the left tool shaft, and the left tool shaft is connected to the fixing block through the through hole three.

[0008] Preferably, the coupling one includes a flange plate one and a connecting block one, the coupling two includes a flange plate two and a connecting block two, the coupling three includes a flange plate three and a connecting block three, and the coupling four includes a flange plate four and a connecting block four.

[0009] Preferably, the first flange and the second flange are bolted together, and the third flange and the fourth flange are bolted together; the first connecting block is fixedly connected to the output shaft of the first reducer, the second connecting block is fixedly connected to the input shaft of the second reducer, the third connecting block is fixedly connected to the output shaft of the second reducer, and the fourth connecting block is connected to the connecting member.

[0010] Preferably, the connecting member is provided with a first through hole adapted to the fourth connecting block, and the fourth connecting block is slidably connected to the connecting member through the first through hole.

[0011] Preferably, the disassembly head is provided with a second through hole adapted to the square head end of the connecting member, and the connecting member is connected to the disassembly head through the second through hole.

[0012] Preferably, the disassembly head is provided with pins, and the pins are arranged in a circumferential array on the disassembly head; the hob is provided with pin holes adapted to the pins on the disassembly head, and the pin holes are arranged in a circumferential array on the hob.

[0013] Preferably, a second cushion plate is provided at the lower end of the base, and the second cushion plates are arranged in a linear array at the lower end of the base.

[0014] Preferably, an electric control cabinet for monitoring current and torque is provided on the first cushion plate.

[0015] Therefore, the automatic hob disassembly device with the above structure according to the present invention achieves the following technical effects compared with the prior art: First, it realizes the automatic control of the hob disassembly operation and improves the disassembly efficiency.

[0016] Second, it accurately matches the torque requirements of different specifications of cutters, improves the torque accuracy, and reduces the scrapping rate of the whole cutter.

[0017] Third, it constructs a modular structure to improve the adaptability of the equipment, and the equipment reuse rate is high.

[0018] The technical solution of the present invention will be further described in detail below with reference to the drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic structural diagram of an automatic hob disassembly device; Figure 2 It is a front view of an automatic hob disassembly device; Figure 3 It is a bottom view of an automatic hob disassembly device; Figure 4 It is a top view of an automatic hob disassembly device; Figure 5 It is a schematic structural diagram of a hob; Figure 6 It is a schematic structural diagram of a fixing block; Figure 7Schematic structural diagram of the connecting piece; Figure 8 Schematic structural diagram of the disassembly head; Figure 9 Rear view of the disassembly head; Figure 10 Schematic structural diagram of coupling one; Figure 11 Schematic structural diagram of coupling two; Figure 12 Schematic structural diagram of coupling three; Figure 13 Schematic structural diagram of coupling four.

[0020] Reference numerals 1, Base; 2, Motor mounting seat; 3, Reducer mounting seat one; 4, Reducer mounting seat two; 5, Spacer plate one; 6, Fixed plate; 7, Rib plate; 8, Motor body; 9, Small pulley; 10, Belt; 11, Large pulley; 12, Reducer one; 13, Coupling one; 14, Coupling two; 15, Reducer two; 16, Coupling three; 17, Coupling four; 18, Connecting piece; 19, Disassembly head; 20, Pin; 21, Pin hole; 22, Hob; 23, Hob body; 2301, Left end of the cutter shaft; 2302, Right end of the cutter shaft; 24, Fixed block; 25, Electric control cabinet; 26, Spacer plate two; 27, Connecting block one; 28, Flange plate one; 29, Flange plate two; 30, Connecting block two; 31, Connecting block three; 32, Flange plate three; 33, Flange plate four; 34, Connecting block four; 35, Through hole one; 36, Through hole two; 37, Through hole three. Detailed implementation manners

[0021] In order to make the objectives, technical solutions and advantages of the disclosed embodiments of the present invention clearer and more understandable, the following further elaborates on the embodiments of the present invention in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the embodiments of the present invention and are not used to limit the embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in this application without creative efforts fall within the scope of protection of this application. Examples of the embodiments are shown in the accompanying drawings, where the same or similar reference numerals denote the same or similar elements or elements with the same or similar functions throughout.

[0022] It should be noted that the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusion. For example, a process, method, system, product or server that includes a series of steps or units does not necessarily have to be limited to those steps or units clearly listed, but may include other steps or units not clearly listed or inherent to these processes, methods, products or devices.

[0023] Like reference numerals and letters indicate like items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0024] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by terms such as "upper", "lower", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the inventive product is usually placed during use. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention.

[0025] In the description of the present invention, it should also be noted that unless otherwise clearly specified and defined, the terms "set", "installed", "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0026] Embodiment As Figures 1-13 As shown, this embodiment provides a hob automatic disassembly device, including a base 1, on which a motor mounting seat 2, a first reducer mounting seat 3, a second reducer mounting seat 4, a first backing plate 5, a fixing plate 6 and a rib plate 7 are provided. A motor body 8 is provided on the motor mounting seat 2, a first reducer 12 is provided on the first reducer mounting seat 3, and a second reducer 15 is provided on the second reducer mounting seat 4.

[0027] The output shaft of the motor body 8 is connected to a small pulley 9, the small pulley 9 is connected to a large pulley 11 through a belt 10, and the large pulley 11 is provided on the input shaft of the first reducer 12. The motor body 8 provides the initial power for the device. The output shaft of the first reducer 12 is connected to a first coupling 13, the first coupling 13 is connected to the input shaft of the second reducer 15 through a second coupling 14, the output shaft of the second reducer 15 is connected to a third coupling 16, the third coupling 16 is connected to a connecting member 18 through a fourth coupling 17, and the connecting member 18 is connected to a disassembly head 19 for disassembling the tool. Multistage reduction is used to meet the input torque required for disassembly and reduce the whole tool scrapping rate.

[0028] The rib plates 7 are symmetrically arranged on both sides of the fixed plate 6. A hob 22 and a fixing block 24 for fixing the hob 22 are arranged on the fixed plate 6. The hob 22 includes a hob body 23, and a left hob shaft end 2301 and a right hob shaft end 2302 are respectively arranged on both sides of the hob body 23. A through hole three 37 adapted to the left hob shaft end 2301 is arranged on the fixing block 24, and the left hob shaft end 2301 is connected to the fixing block 24 through the through hole three 37.

[0029] The first coupling 13 includes a first flange 28 and a first connecting block 27, the second coupling 14 includes a second flange 29 and a second connecting block 30, the third coupling 16 includes a third flange 32 and a third connecting block 31, and the fourth coupling 17 includes a fourth flange 33 and a fourth connecting block 34. The first flange 28 and the second flange 29 are bolted together, and the third flange 32 and the fourth flange 33 are bolted together; the first connecting block 27 is fixedly connected to the output shaft of the first reducer 12, the second connecting block 30 is fixedly connected to the input shaft of the second reducer 15, the third connecting block 31 is fixedly connected to the output shaft of the second reducer 15, and the fourth connecting block 34 is connected to the connecting member 18.

[0030] A through hole one 35 adapted to the fourth connecting block 34 is arranged on the connecting member 18, and the fourth connecting block 34 is slidably connected to the connecting member 18 through the through hole one 35. A through hole two 36 adapted to the square head end of the connecting member 18 is arranged on the disassembly head 19, and the connecting member 18 is connected to the disassembly head 19 through the through hole two 36. A pin 20 is arranged on the disassembly head 19, and the pins 20 are arranged in a circumferential array on the disassembly head 19; a pin hole 21 adapted to the pins 20 on the disassembly head 19 is arranged on the hob 22, and the pin holes 21 are arranged in a circumferential array on the hob 22. The disassembly head 19 is of a detachable style, which is convenient for replacement and can meet the disassembly of tools of various sizes.

[0031] A second cushion plate 26 is arranged at the lower end of the base 1, and the second cushion plates 26 are arranged in a linear array at the lower end of the base 1.

[0032] An electric control cabinet 25 for monitoring current and torque is arranged on the first cushion plate 5. The controls related to the electric control cabinet 25 are all prior arts. An emergency stop is triggered when the sudden change in current exceeds 15% of the rated value. The system automatically shuts down when the real-time monitored torque reaches the set value of 3800 N·m.

[0033] During use, start the motor. The output shaft of the motor drives the small pulley 9 to rotate. The small pulley 9 drives the large pulley 11 to rotate through the belt 10. The rotation of the large pulley 11 drives the input shaft of the first reducer 12 to rotate, and then decelerates through the first reducer 12 and the second reducer 15. Through the above multi-stage deceleration, a low-speed and high-torque force is provided to the disassembly head 19. Through the sliding of the connecting member 18 and the fourth connecting block 34, the pin 20 is inserted into the pin hole 21 to complete the locking of the tool. Finally, through the rotation of the output shaft of the second reducer 15, the disassembly of the fixed hob 22 to be disassembled is completed.

[0034] Therefore, the automatic hob disassembly device with the above structure adopted by the present invention can solve the problems of high labor intensity of manual operation, low disassembly efficiency, high whole hob scrapping rate, and poor equipment versatility.

[0035] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit them. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that they can still modify or equivalently replace the technical solutions of the present invention, and these modifications or equivalent replacements cannot make the modified technical solutions deviate from the spirit and scope of the technical solutions of the present invention.

Claims

1. A device for automatically disassembling a hob, characterized in that: The invention comprises a base (1), on which a motor mounting seat (2), a first reducer mounting seat (3), a second reducer mounting seat (4), a first pad (5), a fixing plate (6) and a rib plate (7) are arranged; a motor body (8) is arranged on the motor mounting seat (2), a first reducer mounting seat (3) is arranged on a first reducer (12), and a second reducer mounting seat (4) is arranged on a second reducer (15); an output shaft of the motor body (8) is connected to a small pulley (9), and the small pulley (9) is connected to the motor body (8) through a belt (10). The large pulley (11) is connected to the input shaft of the reducer 1 (12); the output shaft of the reducer 1 (12) is connected to the coupling 1 (13); the coupling 1 (13) is connected to the input shaft of the reducer 2 (15) through the coupling 2 (14); the output shaft of the reducer 2 (15) is connected to the coupling 3 (16); the coupling 3 (16) is connected to the connecting piece (18) through the coupling 4 (17); and the connecting piece (18) is connected to the disassembly head (19) for disassembling the tool.

2. The automatic disassembly device for a hob according to claim 1, characterized in that: The rib plates (7) are symmetrically arranged on both sides of the fixed plate (6); a roller cutter (22) and a fixing block (24) for fixing the roller cutter are arranged on the fixed plate (6); the roller cutter (22) comprises a roller cutter body (23); and a left end (2301) and a right end (2302) of a cutter shaft are respectively arranged on both sides of the roller cutter body (23).

3. The automatic disassembly device for a hob according to claim 2, characterized in that: A third through hole (37) adapted to the left end (2301) of the knife shaft is provided on the fixed block (24), and the left end (2301) of the knife shaft is connected to the fixed block (24) via the third through hole (37).

4. The automatic disassembly device for a hob according to claim 1, characterized in that: Coupling 1 (13) includes flange 1 (28) and connecting block 1 (27), coupling 2 (14) includes flange 2 (29) and connecting block 2 (30), coupling 3 (16) includes flange 3 (32) and connecting block 3 (31), and coupling 4 (17) includes flange 4 (33) and connecting block 4 (34).

5. The automatic disassembly device for a hob according to claim 4, characterized in that: Flange plate 1 (28) and flange plate 2 (29) are bolted together, and flange plate 3 (32) and flange plate 4 (33) are bolted together; connecting block 1 (27) and the output shaft of reducer 1 (12) are fixedly connected, connecting block 2 (30) and the input shaft of reducer 2 (15) are fixedly connected, connecting block 3 (31) and the output shaft of reducer 2 (15) are fixedly connected, and connecting block 4 (34) is connected to the connecting piece (18).

6. The automatic disassembly device for a hob according to claim 5, characterized in that: The connecting member (18) is provided with a through hole one (35) adapted to the connecting block four (34), and the connecting block four (34) is slidably connected to the connecting member (18) via the through hole one (35).

7. The automatic disassembly device for a hob according to claim 1, characterized in that: The disassembly head (19) is provided with a second through hole (36) adapted to the square head end of the connecting piece (18), and the connecting piece (18) is connected to the disassembly head (19) via the second through hole (36).

8. The automatic disassembly device for a hob according to claim 7, characterized in that: The disassembly head (19) is provided with pins (20), which are arranged in a circumferential array on the disassembly head (19); the roller (22) is provided with pin holes (21) that match the pins (20) on the disassembly head (19), which are arranged in a circumferential array on the roller (22).

9. The automatic disassembly device for a hob according to claim 1, characterized in that: A second pad (26) is provided at the lower end of the base (1), and the second pad (26) is arranged in a linear array at the lower end of the base (1).

10. The automatic disassembly device for a hob according to claim 1, characterized in that: An electric control cabinet (25) for monitoring current and torque is arranged on the backing plate 1 (5).

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