Multi-plate and single-disc combined clutch device and control method therefor

Abstract

Disclosed in the present invention are a multi-plate and single-disc combined clutch device and a control method therefor in the field of presses. The multi-plate and single-disc combined clutch device comprises a first hydraulic mechanism, wherein the first hydraulic mechanism is provided with a first matching friction clutch mechanism, the first hydraulic mechanism is provided with a second hydraulic mechanism, the second hydraulic mechanism is provided with a second matching friction clutch mechanism, the first hydraulic mechanism and the second hydraulic mechanism are connected to an oil path mechanism, the oil path mechanism is connected to an eccentric shaft, and the tail end of the eccentric shaft is provided with a matching brake. The original pneumatic actuation form is changed to hydraulic actuation for engagement, so that during operation, the first hydraulic mechanism and the second hydraulic mechanism work in conjunction with the first friction clutch mechanism and the second friction clutch mechanism to start the eccentric shaft in advance; and once the eccentric shaft has been started, the second friction clutch mechanism disengages, and the first friction clutch mechanism engages, thereby achieving machine tool operation, and thus reducing wear.

Description

Multi-plate and single-disc combined clutch device and control method thereof TECHNICAL FIELD

[0001] The present application relates to a multi-plate and single-disc combined clutch device and control method thereof in the field of presses. BACKGROUND

[0002] In the prior art, a hot die forging clutch (as shown in FIG. 8) mainly comprises a flywheel, a fixed disc, a guide bolt, a friction block, a guide disc, a friction retaining disc, a piston, a cylinder, a hook head key, a rotary joint, an eccentric shaft, a spring pin, a check ring, a spring, an adjusting pad, and a brake. The flywheel 1 is installed on an unloading sleeve through a bearing, the guide bolt 3 installs the fixed disc 2, the cylinder 8, and the flywheel 1 together, and the adjusting pad 15 is arranged between the fixed disc 2 and the cylinder 8. The friction block 4 is placed in the friction retaining disc 6. The friction retaining disc 6 is connected with the eccentric shaft 11 through the hook head key 9. The guide disc 5 is fixed with the piston 7 through a screw. The piston 7 is installed in the cylinder 8. The guide disc 5 is guided through the fixed disc 2. One end of the spring pin 12 is screwed and fixed with the guide disc 5, and the other end is sleeved with the spring 14 and then screwed and fixed with the nut by pressing the end of the spring with the check ring 13. The rotary joint 10 is fixedly installed with the cylinder 8. When the machine tool is started, the clutch flywheel 1 is in a high-speed rotating state. When work is needed, the rotary joint 10 is connected with the air inlet to push the piston 7 to move axially, the guide disc 5 moves under the guidance of the fixed disc 2 until the guide disc 5 contacts with the friction block 4, so that the eccentric shaft 11 rotates with the flywheel 1 to make the driven part move, and the machine tool works. When parking is needed, the rotary joint 10 is connected with the air inlet to exhaust the compressed air in the cylinder 8. At this time, the compressed spring 13 makes the guide disc 5 and the friction block 4 quickly separate, the brake 16 is closed, and the eccentric shaft 11 and the driven part stop working. The deficiency is that the machine tool eccentric shaft and the driven part connected with the eccentric shaft finally rotate at the same speed as the flywheel from the static state. In this process, the friction block and the engagement surface exist in the situation of slipping, so that the wear of the friction block is accelerated. When the wear of the friction block reaches a certain amount, the adjusting pad 15 needs to be adjusted and the stroke of the piston also needs to be re-detected. The maintenance of the machine tool is not convenient, the friction block needs to be replaced in a short time, and the use cost of the machine tool is increased. SUMMARY

[0003] The purpose of the present application is to provide a multi-plate and single-disc combined clutch device and control method thereof, which can continue to be used without adjusting the pad even after the wear of the friction block, until the friction block is completely worn out, and the use cycle is long.

[0004] In order to achieve the above object, the application provides a multi-piece and single-disc composite clutch device, which comprises a hydraulic mechanism I, the hydraulic mechanism I is matched with a friction clutch mechanism I, the hydraulic mechanism I is provided with a hydraulic mechanism II, the hydraulic mechanism II is matched with a friction clutch mechanism II, the hydraulic mechanism I and the hydraulic mechanism II are connected with an oil circuit mechanism, the oil circuit mechanism is connected with an eccentric shaft, and the eccentric shaft is matched with a brake at the end.

[0005] Compared with the prior art, the application has the beneficial effects that the original pneumatic pushing form is changed into hydraulic pushing engagement, so that when working, the hydraulic mechanism I and the hydraulic mechanism II cooperate with the friction clutch mechanism I and the friction clutch mechanism II to start the eccentric shaft in advance; after the eccentric shaft is started, the friction clutch mechanism II is separated and the friction clutch mechanism I is closed; the machine tool is operated, and the wear is reduced.

[0006] As a further improvement of the application, the hydraulic mechanism I comprises an unloading sleeve, the unloading sleeve is provided with a flywheel, the flywheel is fixedly connected with the hydraulic cylinder I through guide bolts, and there is a tolerance fit between the hydraulic cylinder I and the flywheel; the hydraulic cylinder I is sleeved with a compression piston I, and the compression piston I moves axially through guide bolts. In this way, the hydraulic cylinder I drives the compression piston I to cooperate with the friction clutch mechanism I to drive the machine tool to move.

[0007] As a further improvement of the application, the friction clutch mechanism I comprises a friction block, the friction block is placed in a friction retaining disc and cooperates with the compression piston I, the friction retaining disc is connected with the eccentric shaft through a hook head key, a spring pin is arranged between the compression piston I and the hydraulic cylinder I, one end of the spring pin is positioned through the compression piston I, the other end of the spring pin is sleeved with a spring I, the spring I is fixed by a check ring and is compressed by a nut. In this way, the oil cavity of the hydraulic cylinder I drives the compression piston I to move; and the friction block is combined to drive the machine tool to move, because the eccentric shaft and other driven parts have an initial speed, the friction block does not slip when combined, and the wear is reduced; when the machine tool stops, the pre-tightened spring I drives the check ring, the spring pin and the compression piston I to move together, so that the compression piston I is separated from the friction block, and the brake immediately brakes to stop the machine tool.

[0008] As a further improvement of the application, the hydraulic mechanism II comprises a hydraulic cylinder II, the hydraulic cylinder II is installed on the hydraulic cylinder I, the hydraulic cylinder II is sleeved with a compression piston II, and the compression piston II moves axially on the hydraulic cylinder II. In this way, the hydraulic cylinder II drives the compression piston II to cooperate with the friction clutch mechanism II to realize the pre-starting of the eccentric shaft and other driven parts.

[0009] As a further improvement of the present application, the friction clutch mechanism two includes a friction plate, the friction plate is arranged between the hydraulic cylinder two and the compression piston two, the friction plate is guided by the inner teeth of the inner ring gear and can move axially, the inner ring gear is fixed on the hydraulic cylinder one by screws, the inner ring gear is placed with the pre-tightened spring two, one end of the spring two is in contact with the inner ring gear, the other end is in contact with the compression piston two, the inner ring gear is matched with the outer ring gear through the friction plate, the eccentric shaft is fixed with the outer ring gear through the expansion sleeve, and the outer ring gear is arranged with the compression cover two between the hydraulic cylinder one. In this way, when the flywheel is in a high-speed rotating state, the brake is disengaged when the machine tool is in action, the hydraulic cylinder two drives the compression piston two to move axially and combine with the friction plate, the inner ring gear installed on the hydraulic cylinder two drives the outer ring gear to rotate through the friction plate, the outer ring gear drives the eccentric shaft to rotate through the expansion sleeve, so that the eccentric shaft starts in advance.

[0010] As a further improvement of the present application, the oil path mechanism includes a hydraulic oil inlet pipe, one end of the hydraulic oil inlet pipe is fixed with a bearing through the compression cover one and is arranged with the eccentric shaft, the other end is fixed with a bearing through the compression cover three and is arranged with the rotary joint, the rotary joint is installed on the hydraulic cylinder two, the oil chambers of the hydraulic cylinder one and the hydraulic cylinder two are connected through the cooperation of the right-angle hydraulic joint and the hydraulic oil pipe until the oil inlet of the rotary joint. In this way, the hydraulic oil enters the hydraulic cylinder one and two through the oil inlet of the rotary joint 13, thereby providing the hydraulic oil cylinder one and two with hydraulic oil.

[0011] In order to achieve the above-mentioned purpose, the present application also provides a control method of a multi-piece and single-disc composite clutch device, which includes the following contents,

[0012] Step 1, after the machine tool is started, the clutch flywheel is in a high-speed rotating state; when the machine tool is in action, the brake is disengaged, the hydraulic oil enters the oil chamber of the hydraulic cylinder two through the oil inlet B of the rotary joint to drive the compression piston two to move axially and combine with the friction plate, the inner ring gear installed on the hydraulic cylinder two drives the outer ring gear to rotate through the friction plate, the outer ring gear drives the eccentric shaft to rotate through the expansion sleeve, so that the eccentric shaft starts in advance;

[0013] Step 2, after the eccentric shaft starts, the oil inlet B of the rotary joint stops supplying oil to the oil chamber of the hydraulic cylinder two; at the same time, the pre-tightened spring two makes the compression piston two separate from the friction plate; and the oil inlet A of the rotary joint supplies oil from the oil chamber of the hydraulic cylinder two to the oil chamber of the hydraulic cylinder one to drive the compression piston one to move and combine with the friction block to drive the machine tool to act;

[0014] Step 3, when the machine tool needs to be stopped, the oil inlet A of the rotary joint stops supplying oil, the pre-tightened spring one drives the check ring, the spring pin and the compression piston one to move together, so that the compression piston one separates from the friction block, the brake immediately brakes to stop the machine tool.

[0015] Compared with the prior art, the present application has the beneficial effects that the original pneumatic pushing engagement friction block is changed into hydraulic pushing engagement, and the friction clutch mechanism and the hydraulic mechanism are on the eccentric shaft; so that during operation, the engagement starts the eccentric shaft in advance; after the eccentric shaft is started, the hydraulic mechanism is closed by hydraulic pressure, and the friction clutch mechanism is separated; the machine tool operation is realized, and the friction block wear is reduced.

[0016] As a further improvement of the present application, when the friction block is worn, the compression piston is pushed by hydraulic pressure to engage with the friction block, the engagement stroke is increased, and in the available range, no adjustment is needed during use until the friction block needs to be replaced. In this way, the production efficiency is greatly improved, and the maintenance cost and use cost of the machine tool are reduced.

[0017] As a further improvement of the present application, when the oil temperature in the clutch exceeds a set value, the cooling oil enters the eccentric shaft through the hydraulic oil inlet pipe, enters the friction plate cavity through the outer gear ring, and finally returns to the hydraulic pump station through the oil port in the hydraulic cylinder two, the rotating joint oil ports C1 and C2, and is continuously cooled; and the oil inlet is circulated until the oil temperature is lower than the set value. In this way, the oil temperature can be ensured not to be too high, so as to ensure the safety of the device. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 is a structural schematic diagram of the present application.

[0019] Figure 2 is a partial enlarged view of E in Figure 1.

[0020] Figure 3 is a view of A-A in Figure 1.

[0021] Figure 4 is a view of B-B in Figure 1.

[0022] Figure 5 is a view of C-C in Figure 1.

[0023] Figure 6 is a sectional view of K in Figure 1.

[0024] Figure 7 is a hydraulic oil circuit principle diagram of the present application.

[0025] Figure 8 is a structural schematic diagram of the prior art.

[0026] In Figures 1-7, 1: flywheel 2: compression piston one 3: guide bolt 4: friction block 5: right-angle hydraulic joint 6: friction retaining disc 7: hydraulic cylinder one 8: hydraulic cylinder two 9: inner gear ring 10: compression piston two 11: hook key 12: hydraulic oil inlet pipe 13: rotating joint 14: gland one 15: eccentric shaft 16: expansion sleeve 17: outer gear ring 18: gland two 19: friction plate 20: spring two 21: spring pin 22: retainer 23: spring one 24: brake.

[0027] Figure 8, 1: flywheel 2: fixed disc 3: guide bolt 4: friction block 5: guide disc 6: friction retaining disc 7: piston 8: cylinder 9: hook head key 10: rotary joint 11: eccentric shaft 12: spring pin 13: retaining ring 14: spring 15: adjusting pad 16: brake. DETAILED DESCRIPTION

[0028] The application is further described below in conjunction with the drawings:

[0029] A multi-plate and single-disc composite clutch device as shown in Figures 1-7 includes hydraulic mechanism one, which is matched with friction clutch mechanism one, and is provided with hydraulic mechanism two, which is matched with friction clutch mechanism two. Hydraulic mechanism one and hydraulic mechanism two are connected with oil path mechanism, which is connected with eccentric shaft 15, and the end of eccentric shaft 15 is matched with brake 24.

[0030] Hydraulic mechanism one includes unloading sleeve, which is provided with flywheel 1. Flywheel 1 is fixedly connected with hydraulic cylinder one 7 through guide bolt 3, and there is a tolerance fit between hydraulic cylinder one 7 and flywheel 1. Hydraulic cylinder one 7 is sleeved with compression piston one 2, which moves axially through guide bolt 3.

[0031] Friction clutch mechanism one includes friction block 4, which is placed in friction retaining disc 6 and cooperates with compression piston one 2. Friction retaining disc 6 is connected with eccentric shaft 15 through hook head key 11. Spring pin 21 is installed between compression piston one 2 and hydraulic cylinder one 7. One end of spring pin 21 is positioned through compression piston one 2, and the other end is sleeved with spring one 23, which is fixed with retaining ring 22 and compressed through nut.

[0032] Hydraulic mechanism two includes hydraulic cylinder two 8, which is installed on hydraulic cylinder one. Hydraulic cylinder two 8 is sleeved with compression piston two 10, which moves axially on hydraulic cylinder two 8.

[0033] Friction clutch mechanism two includes friction plate 19, which is arranged between hydraulic cylinder two 8 and compression piston two 10. Friction plate 19 moves axially through the inner teeth of inner gear ring 9. Inner gear ring 9 is fixed on hydraulic cylinder one 7 through screw. Spring two 20 in pre-tightening state is placed in inner gear ring 9. One end of spring two 20 contacts with inner gear ring 9, and the other end contacts with compression piston two 10. Inner gear ring 9 cooperates with outer gear ring 17 through friction plate 19. Eccentric shaft 15 is fixed with outer gear ring 17 through expansion sleeve 16. Compression cover two 18 is installed between outer gear ring 17 and hydraulic cylinder one 7.

[0034] The oil path mechanism comprises a hydraulic oil inlet pipe 12, one end of which is fixed with a bearing through a gland one 14 with the eccentric shaft 15, and the other end is fixed with a bearing through a gland three with the rotary joint 13, which is installed on the hydraulic cylinder two 8, and the oil chambers of the hydraulic cylinder one 7 and the hydraulic cylinder two 8 are connected through the cooperation of the right-angle hydraulic joint 5 and the hydraulic oil pipe until the oil inlet of the rotary joint 13.

[0035] A control method of a multi-plate and single-disc composite clutch device as shown in FIGS. 1-7, comprising the following contents,

[0036] Step 1, after the machine tool is started, the clutch flywheel 1 is in a high-speed rotating state; when the machine tool is in action, the brake 24 is disengaged, and the hydraulic oil enters the oil chamber of the hydraulic cylinder two 8 through the oil inlet A of the rotary joint 13 to push the compression piston two 10 to move axially and combine with the friction plate 19, the inner ring gear 9 installed on the hydraulic cylinder two 8 is driven to rotate by the outer ring gear 17 through the friction plate 19, and the outer ring gear 17 drives the eccentric shaft 15 to rotate through the expansion sleeve 16, so that the eccentric shaft 15 starts in advance;

[0037] Step 2, after the eccentric shaft 15 starts, the oil inlet A of the rotary joint 13 stops supplying oil to the oil chamber of the hydraulic cylinder two 8; at the same time, the pre-tightened spring two 20 makes the compression piston two 10 separate from the friction plate 19; and the oil inlet B of the rotary joint 13 pushes the compression piston one 2 to move through the oil chamber of the hydraulic cylinder two 8 to the oil chamber of the hydraulic cylinder one 7, and combines with the friction block 4 to drive the machine tool to act;

[0038] Step 3, when the machine tool needs to stop, the oil inlet B of the rotary joint 13 stops supplying oil, and the pre-tightened spring one 23 drives the check ring 22, the spring pin 21 and the compression piston one 2 to move together, so that the compression piston one 2 separates from the friction block 4, and the brake 24 immediately brakes to stop the machine tool.

[0039] When the friction block 4 wears out, the compression piston one 2 is pushed by the hydraulic pressure to engage with the friction block 4, the engagement stroke is increased, and within the available range, no adjustment is required in use until the friction block 4 needs to be replaced.

[0040] When the oil temperature in the clutch exceeds the set value, the cooling oil enters the eccentric shaft 15 through the hydraulic oil inlet pipe 12, enters the outer ring gear 17, and finally enters the cavity of the friction plate 19, and then enters the oil ports C1 and C2 of the rotary joint 13 through the oil ports in the hydraulic cylinder two 8, and finally returns to the hydraulic pump station for continuous cooling; and the oil is circulated until the oil temperature is lower than the set value.

[0041] In the application, the flywheel 1 is fixedly connected with the hydraulic cylinder 7 through the guide bolt 3, and the hydraulic cylinder 7 has a tolerance fit with the flywheel 1; the compression piston 2 is sleeved on the hydraulic cylinder 7 and can axially move through the guide bolt 3; the friction block 4 is placed in the friction retaining disc 6; the right-angle hydraulic connector 5 connects the oil cavity of the hydraulic cylinder 7 with the oil cavity of the hydraulic cylinder 8 through the hydraulic oil pipe until the oil inlet of the rotary connector 13, the oil inlet of the rotary connector 13 has three A, B and C; the friction retaining disc 6 is connected with the eccentric shaft 15 through the hook head key 11; the hydraulic cylinder 8 is installed on the hydraulic cylinder 7; the inner ring gear 9 is fixed on the hydraulic cylinder 8 through the screw; the spring 20 in the pre-tightening state is placed in the inner ring gear 9, one end of the spring 20 is in contact with the inner ring gear and the other end of the spring 20 is in contact with the compression piston 10; the outer ring gear 17 is fixed with the eccentric shaft 15 through the expansion sleeve 16; the compression cover 18 is installed between the hydraulic cylinder 8 and the outer ring gear 17; the compression piston 10 is installed with the hydraulic cylinder 8 and can axially move; the friction plate 19 is placed between the hydraulic cylinder 8 and the compression piston 10 and can axially move through the inner teeth of the inner ring gear 9; the rotary connector 13 is installed on the hydraulic cylinder 8; one end of the hydraulic oil inlet pipe 12 is fixed with the bearing through the compression cover 14 and the other end of the hydraulic oil inlet pipe 12 is also fixed with the bearing through the compression cover; the spring pin 21 passes through the compression piston 2 and the hydraulic cylinder 7, one end of the spring pin 21 is positioned through the compression piston 2 and the other end of the spring pin 21 is sleeved with the spring 23 and is fixed through the retaining ring 22 and the nut compression; the brake 24 cooperates with the clutch to control the action and parking of the machine tool.

[0042] The action of the compression piston 2 and the compression piston 10 of the multi-plate and single-disc combined clutch device is controlled by a hydraulic system, the principle of which is shown in Figure 7. In the hydraulic system, pressure gauges are arranged at multiple positions to check the working pressure at any time, and an air exhaust joint is arranged to exhaust air in the hydraulic oil. A pressure switch feeds back the pressure signal to the control system. A filter can filter impurities in the hydraulic oil in the tank to avoid blockage of the hydraulic system. A motor drives the pump to work, providing hydraulic oil and cooling oil for the clutch, and an electromagnetic overflow valve can set the system pressure, and when the oil pressure exceeds the set pressure of the system, the pressure is released to the tank. A check valve is installed on the main pipeline to ensure the flow direction of the hydraulic oil. When the ejection is not needed, the plug-in valve is not in action, and the hydraulic oil cannot flow to the clutch oil port through the plug-in valve. When the compression piston 10 of the starting clutch and the compression piston 2 of the clutch need to act, the two three-way electromagnetic valves are powered to make the control plug-in valve act, and the accumulator quickly flows out the hydraulic oil through the plug-in valve outlet. The two three-way four-way electromagnetic valves installed behind the plug-in valve control the flow direction of the hydraulic oil, which can realize the A port of the rotary joint to enter the oil and the B port to exit the oil or the B port to enter the oil and the A port to exit the oil. The single-way throttle valve installed at the outlet of the three-way four-way electromagnetic valve adjusts the outflow amount and flow rate to ensure the sensitivity and reliability of the oil cylinder action. The overflow valve plays a safety protection role, and when the pressure exceeds the set pressure, the oil in the accumulator is released, and the hydraulic oil flows to the tank. The temperature sensor in the tank detects the oil temperature, and when the oil temperature exceeds the set value, the cooling oil circuit starts to work; when the oil temperature is lower than the set value, the cooling oil circuit stops working.

[0043] The specific control action sequence is as follows: initially, the brake 24 is disengaged; the A port of the rotary joint is returned to oil by the hydraulic system to ensure that the compression piston 2 is disengaged from the friction block 4 under the action of the spring 23; then the B port of the rotary joint is re-oiled, the compression piston 10 pushes the compression spring 20 to move axially to make the friction plate 19 engage, and the clutch starts; the engagement time of the clutch is adjusted and set according to the site conditions; after the clutch starts, the B port of the rotary joint is quickly controlled by the hydraulic system to return to oil, at which time the compression piston 10 moves axially under the action of the spring 20 to make the friction plate 19 disengage; then the A port of the rotary joint is re-oiled to make the compression piston 2 move axially to engage with the friction block 4 to drive the machine tool to work. When the machine tool needs to stop, the A port of the rotary joint is returned to oil, and then the brake 24 is engaged.

[0044] In actual work: after the machine tool is started, the clutch flywheel 1 is in high-speed rotating state; when the machine tool is in action, the brake 24 is disengaged, the hydraulic oil enters the oil inlet B of the rotary joint 13 to the oil cavity of the hydraulic cylinder two 8 to push the compression piston two 10 to move axially to make the friction plate 19 combine, the inner ring gear 9 installed on the hydraulic cylinder one 7 is driven by the friction plate 19 to rotate the outer ring gear 17, the outer ring gear 17 drives the eccentric shaft 15 to rotate through the expansion sleeve 16; the eccentric shaft 15 is started in advance; after the eccentric shaft 15 is started, the oil inlet B of the rotary joint 13 stops supplying oil to the oil cavity of the hydraulic cylinder two 8; at the same time, the pre-tightened spring two 20 makes the compression piston two 10 separate from the friction plate 19; and the oil inlet A of the rotary joint 13 pushes the compression piston one 2 to move through the oil cavity of the hydraulic cylinder two 8 to the oil cavity of the hydraulic cylinder one 7; and makes the friction block 4 combine to drive the machine tool to act, because the eccentric shaft 15 and other driven parts have initial speed, the friction block 4 does not slip when combining, thereby reducing wear. When the machine tool stops, the oil inlet A of the rotary joint 13 stops supplying oil, the compression piston one 2 moves together with the blocking ring 22, the spring pin 21 and the compression piston one 2 driven by the pre-tightened spring one 23 to make the compression piston one 2 separate from the friction block 4, the brake 24 immediately brakes to make the machine tool stop; when the friction block 4 is worn, the compression piston one 2 is pushed by hydraulic pressure to combine with the friction block, the combining stroke is increased; in the available range, adjustment is not needed in use until the friction block needs to be replaced. When the oil temperature in the wet clutch exceeds a certain value, the cooling oil enters the eccentric shaft 15 through the oil inlet pipe 12, then enters the outer ring gear 17, finally enters the cavity of the friction plate 10, and then finally returns to the hydraulic pump station through the oil inlet of the hydraulic cylinder two 8 and the oil inlets C1 and C2 of the rotary joint to continuously cool; and the oil is circulated until the oil temperature is lower than the set value.

[0045] The original pneumatic pushing and engaging friction block is changed into hydraulic pushing and engaging, and a hydraulic wet starting clutch is added to the eccentric shaft; when working, the starting wet clutch engages to start the eccentric shaft in advance; after the eccentric shaft is started, the clutch is closed by hydraulic pressure, and the starting clutch is separated; the machine tool works, thereby reducing the wear of the friction block. When the friction block is worn, the compression piston is pushed by hydraulic pressure to combine with the friction block, the combining stroke is increased; in the available range, adjustment is not needed in use until the friction block needs to be replaced, thereby greatly improving the production efficiency and reducing the maintenance cost and use cost of the machine tool.

[0046] The present application is not limited to the above-mentioned embodiments, and based on the technical solutions of the present disclosure, those skilled in the art can make some substitutions and modifications to some technical features without creative labor, and these substitutions and modifications are within the protection scope of the present application.

Claims

1. A multi-plate and single-disc composite clutch device, characterized in that, It includes a hydraulic mechanism one, which is equipped with a friction clutch mechanism one, and a hydraulic mechanism two is installed on the hydraulic mechanism one. The hydraulic mechanism two is equipped with a friction clutch mechanism two. The hydraulic mechanism one and the hydraulic mechanism two are connected to an oil circuit mechanism, which is connected to an eccentric shaft. The end of the eccentric shaft is equipped with a brake.

2. A multi-plate and single-disc composite clutch device according to claim 1, characterized in that: The hydraulic mechanism includes an unloading sleeve, on which a flywheel is mounted. The flywheel is fixedly connected to the hydraulic cylinder by a guide bolt, and there is a tolerance fit between the hydraulic cylinder and the flywheel. A clamping piston is mounted on the hydraulic cylinder, and the clamping piston moves axially via the guide bolt.

3. The multi-plate and single-disc composite clutch device according to claim 2, characterized in that: The friction clutch mechanism includes a friction block, which is placed in a friction holding plate and cooperates with a pressing piston. The friction holding plate is connected to an eccentric shaft via a hook key. A spring pin is installed between the pressing piston and the hydraulic cylinder. One end of the spring pin is positioned by the pressing piston, and the other end is fitted with a spring, fixed with a retaining ring, and tightened by a nut.

4. The multi-plate and single-disc composite clutch device according to claim 3, characterized in that: The hydraulic mechanism 2 includes a hydraulic cylinder 2, which is mounted on the hydraulic cylinder 1. A clamping piston 2 is mounted on the hydraulic cylinder 2, and the clamping piston 2 moves axially on the hydraulic cylinder 2.

5. A multi-plate and single-disc composite clutch device according to claim 4, characterized in that: The friction clutch mechanism two includes a friction plate, which is disposed between the hydraulic cylinder two and the pressing piston two. The friction plate can move axially through the internal teeth of the internal gear ring. The internal gear ring is fixed to the hydraulic cylinder one by screws. A pre-tightened spring two is placed inside the internal gear ring. One end of the spring two contacts the internal gear ring, and the other end contacts the pressing piston two. The internal gear ring cooperates with the external gear ring through the friction plate. The eccentric shaft is fixed to the external gear ring through the expansion sleeve. A pressure cover two is installed between the external gear ring and the hydraulic cylinder one.

6. A multi-plate and single-disc composite clutch device according to claim 5, characterized in that: The hydraulic circuit mechanism includes a hydraulic inlet pipe. One end of the hydraulic inlet pipe is fixed to the eccentric shaft with a bearing and a pressure cap one, and the other end is fixed to the rotary joint with a bearing and a pressure cap three. The rotary joint is installed on the hydraulic cylinder two. The oil chambers of hydraulic cylinder one and hydraulic cylinder two are connected to the oil inlet of the rotary joint through the cooperation of a right-angle hydraulic joint and a hydraulic oil pipe.

7. A control method for a multi-plate and single-disc compound clutch device, characterized in that: Includes the following: Step 1: After the machine tool is started, the clutch flywheel is in a high-speed rotation state; when the machine tool is in motion, the brake is disengaged, and the hydraulic oil passes through the oil inlet B of the rotary joint to the oil chamber of the hydraulic cylinder two, pushing the pressure piston two to move axially and engage with the friction plate. The internal gear ring installed on the hydraulic cylinder two drives the external gear ring to rotate through the friction plate, and the external gear ring drives the eccentric shaft to rotate through the shrinking sleeve, so that the eccentric shaft starts in advance. Step 2: After the eccentric shaft starts, the rotary joint oil inlet B stops supplying oil to the hydraulic cylinder two oil chamber; at the same time, the pre-tightened spring two causes the clamping piston two to separate from the friction plate; and the rotary joint oil inlet A pushes the clamping piston one to move through the hydraulic cylinder two oil chamber to the hydraulic cylinder one oil chamber, and engages with the friction block to drive the machine tool to move. Step 3: When the machine tool needs to be stopped, the oil inlet A of the rotary joint stops supplying oil. The pre-tightened spring drives the retaining ring, spring pin, and clamping piston to move together, causing the clamping piston to disengage from the friction block. The brake immediately applies the brakes to stop the machine tool.

8. The control method for a multi-plate and single-disc compound clutch device according to claim 7, characterized in that: When the friction block wears out, the clamping piston is hydraulically pushed to engage with the friction block, increasing the engagement stroke. Within the usable range, no adjustment is required during use until the friction block needs to be replaced.

9. The control method for a multi-plate and single-disc compound clutch device according to claim 8, characterized in that: When the oil temperature in the clutch exceeds the set value, the cooling oil enters the eccentric shaft through the hydraulic inlet pipe, then flows to the outer gear ring and finally enters the friction plate cavity. It then passes through the oil port in the hydraulic cylinder to the rotary joint oil ports C1 and C2, and finally returns to the hydraulic pump station for continuous cooling. The oil is then circulated until the oil temperature is below the set value.

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