Crosscutting machine and system using crosscutting knife shaft hydrostatic bearing

Abstract

The present invention discloses a cross-cutting machine and a system using a cross-cutting cutter shaft fluid static pressure bearing. A long hole is arranged at the center of one end of the core shaft of the cross-cutting cutter roller, and a radial through hole connecting the surface and the long hole is arranged in the middle, so that hydraulic oil enters into a hydraulic cavity between the core shaft and a roller from the long hole and the radial through hole. Since the hydraulic oil maintains a certain pressure, the hydraulic oil in the hydraulic cavity forms a shaft fluid static pressure bearing. The core shaft and the roller are in contact through the hydraulic oil, which reduces the direct friction between the core shaft and the roller, and plays a lubricating role between the core shaft and the roller, thereby increasing the service life of the bearing and reducing the cost of equipment maintenance.

Description

Technical Field

[0001] The invention relates to the field of paperboard production equipment, and in particular to a cross-cutting machine and a system using a cross-cutting knife shaft fluid static pressure bearing. Background Art

[0002] As an important unit in the corrugated cardboard production line, the cross-cutting machine cuts the continuous cardboard into cardboards of different lengths according to the customer's order. This requires the cross-cutting knife shaft assembly to work at an inconstant speed or maintain a constant speed in a given time interval to cut the cardboard. During the cutting process, a huge dynamic load will be generated on the roller. Most of the cross-cutting knife shafts currently available in China connect the fixed mandrel and the cutting knife roller together through rolling bearings for cutting. Long-term cutting action will greatly reduce the life of the bearings, and the bearings need to be replaced after a few years. The replacement of the bearings requires the cross-cutting knife shaft assembly to be removed from the equipment, which is time-consuming and labor-intensive, greatly affecting the normal production of customers.

[0003] In order to accurately cut the length of the cardboard and obtain good quality, it is necessary to reduce the deformation caused by the dynamic stress of the blade, roller and mandrel. The deformation can be reduced by increasing the diameter of the mandrel and the inner diameter of the corresponding roller. However, since the bearing needs to bear huge dynamic loads, its specifications and dimensions must be large enough to meet the work requirements, while the outer diameter of the roller is fixed and unchanged. Under the existing technical environment, due to the existence of the bearing, the diameter of the mandrel can no longer be increased.

[0004] In production, rolling bearings run at high speeds. Therefore, when the lubricating oil supply to the rolling bearings is insufficient, heat is easily generated, resulting in high temperatures, which makes the rolling bearings easily deformed and damaged. Summary of the invention

[0005] In view of the above-mentioned deficiencies in the prior art, an object of the present invention is to provide a cross-cutting machine and system using a hydrostatic bearing for a cross-cutting cutter shaft, so as to solve the problem that the rolling bearings of the current cross-cutting machine are easily damaged.

[0006] In order to achieve the above object, the present invention adopts the following technical solutions:

[0007] A cross-cutting machine using a hydrostatic bearing for a cross-cutting knife shaft comprises a cross-cutting machine frame mainly composed of a left wall panel and a right wall panel, a cross-cutting knife roller is rotatably connected between the left wall panel and the right wall panel, one end of the cross-cutting knife roller is connected to a driving assembly, a cross-cutting knife is fixed on the cross-cutting knife roller, and the cross-cutting knife roller comprises a core shaft and a roller, one end of the core shaft is provided with a long hole arranged along its axial direction, the middle part of the core shaft is provided with a radial through hole connecting its surface with the long hole, the end of the core shaft at one end where the long hole is arranged is provided with an adapter, and the adapter is provided with a liquid inlet connected with the long hole; the roller is sleeved on the outer surface of the core shaft, and the gap between the core shaft and the roller forms a hydraulic cavity, and the ends of both ends of the roller are fixed and sealed with driven gears, and the driven gear is concentrically fixed with a bearing, and the bearing is rotatably connected to the core shaft, and the cross-cutting knife is fixed on the outer surface of the roller, and gear boxes are provided at both ends of the roller, and the gear boxes are respectively fixed on the left wall panel and the right wall panel, and a sealing ring is provided between the gear box and the gear, and a liquid outlet is provided at the bottom of the gear box.

[0008] In the cross-cutting machine using the hydrostatic bearing of the cross-cutting knife shaft, the long hole is arranged at the center position of the left end of the core shaft.

[0009] In the crosscutting machine using the crosscutting cutter shaft fluid static pressure bearing, the circumferential surface of the middle part of the core shaft is provided with a plurality of annular grooves, and radial through holes are provided on the annular grooves.

[0010] The cross-cutting machine using a fluid static pressure bearing for the cross-cutting knife shaft also includes a fixed seat and a keyless shaft ring. The keyless shaft ring is connected to the ends of the core shaft, and the fixed seat is arranged on the outside of the keyless shaft ring. The fixed seat is fixed to the left wall panel and the right wall panel respectively by screws, and the left and right ends of the core shaft are connected to the fixed seat by keyless shaft rings.

[0011] In the cross-cutting machine using the cross-cutting knife shaft fluid static pressure bearing, there are two cross-cutting knife rollers, which are an upper cross-cutting knife roller and a lower cross-cutting knife roller respectively. The lower cross-cutting knife roller is placed below the upper cross-cutting knife roller. The driven gear on the upper cross-cutting knife roller is meshed and connected with the driven gear at the same end of the lower cross-cutting knife roller. The driven gear of the lower cross-cutting knife roller is also meshed and connected with the driving gear. The driven gear of the lower cross-cutting knife roller, the driven gear on the upper cross-cutting knife roller and the driving gear are placed in the same gear box. The driving assembly is connected to the driving gear, and the driving assembly is fixed on the outside of the frame.

[0012] A cross-cutting machine system using a cross-cutting cutter shaft fluid static pressure bearing includes the cross-cutting machine using the cross-cutting cutter shaft fluid static pressure bearing, and also includes a hydraulic fluid system component, the hydraulic fluid system component includes an oil tank and a main pipeline, the oil tank is fixed on the cross-cutting machine frame, and is connected to the cross-cutting cutter roller fluid inlet through the main pipeline, an oil pump is connected in series to the main pipeline, the oil pump is connected to a drive motor through a coupling, the drive motor and the oil pump are both fixed on the oil tank, and the drive component of the cross-cutting cutter roller and the drive motor are electrically connected to a controller.

[0013] In the cross-cutting machine system using a fluid static pressure bearing for the cross-cutting knife shaft, a pressure relief valve, a temperature detector, a first ball valve, a first pressure sensor, a filter, a fluid sensor, a second ball valve and a second pressure sensor are connected in series between the oil pump and the cross-cutting knife roller, and a cooling fan is installed inside the oil tank. The cooling fan, the temperature detector, the first ball valve, the first pressure sensor, the fluid sensor, the second ball valve and the second pressure sensor are electrically connected to the controller.

[0014] The crosscutting machine system using the crosscutting cutter shaft fluid static pressure bearing also includes a pressure gauge, which is connected in series between the filter and the fluid sensor. A capacity observation gauge is provided inside the oil tank, and a refueling cap is also provided on the top surface of the oil tank.

[0015] In the cross-cutting machine system using a hydrostatic bearing for the cross-cutting knife shaft, there are two cross-cutting knife rollers, which are an upper cross-cutting knife roller and a lower cross-cutting knife roller respectively. An oil separator is arranged between the main pipeline and the liquid inlet. The two outlet ends of the oil separator are respectively connected to the liquid inlets of the upper cross-cutting knife roller and the lower cross-cutting knife roller. An oil return pipeline is connected between the liquid outlet and the oil tank.

[0016] Beneficial effects: by setting a long hole at the center of one end of the core shaft of the cross-cutting knife roller, and setting a radial through hole in the middle that connects its surface and the long hole, the hydraulic oil enters the hydraulic cavity between the core shaft and the roller from the long hole and the radial through hole, and because the hydraulic oil maintains a certain pressure, the hydraulic oil inside the hydraulic cavity forms an axial fluid static pressure bearing, the core shaft and the roller are in contact through the hydraulic oil, the direct friction between the core shaft and the roller is reduced, and the core shaft and the roller play a lubrication role, which increases the service life of the bearing and reduces the cost of equipment maintenance; during the oil return process, the hydraulic oil cools the bearings at both ends of the core shaft to avoid deformation of the bearings due to high temperature and increase the service life of the bearings. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of the cross-cutting machine and system provided by the present invention.

[0018] Figure 2 It is a structural schematic diagram of the cross-cutting machine provided by the present invention.

[0019] Figure 3 yes Figure 2 Cross-sectional view in RR direction.

[0020] Figure 4 It is a schematic diagram of the structure of the mandrel.

[0021] Figure 5 yes Figure 4 Cross-sectional view in SS direction.

[0022] Figure 6It is a structural schematic diagram of the cross-cutting machine system provided by the present invention.

[0023] Figure 7 It is a schematic diagram of the connection structure of the electrical components of the cross-cutting machine system.

[0024] Description of the main component symbols: 100-cross-cutting knife roller, 100A-lower cross-cutting knife roller, 100B-upper cross-cutting knife roller, 101-radial through hole, 102-long hole, 103-hydraulic cavity, 104-core shaft, 105-roller, 106-bearing, 107-sealing ring, 108-driven gear, 109-gear box, 110-drive assembly, 111-adapter, 112-fixed seat, 113-keyless shaft ring, 114-cross-cutting machine frame, 115-cross-cutting knife, 116-liquid outlet, 118-driving gear, 119-annular groove, 200-hydraulic fluid system components, 201-oil tank, 202-drive motor, 203-coupling, 204-main pipeline, 205-oil pump, 220-controller, 206-pressure relief valve, 207-cooling fan, 208-first ball valve, 209-filter, 210-pressure gauge, 211-fluid sensor, 212-second ball valve, 213-second pressure sensor, 214-first pressure sensor, 215-temperature detector, 216-capacity observation meter, 217-fuel filling cap, 218-oil distributor block, 219-return oil pipeline. DETAILED DESCRIPTION

[0025] The present invention provides a cross-cutting machine and a system for a cross-cutting machine using a hydrostatic bearing for a cross-cutting knife shaft. In order to make the purpose, technical solution and effect of the present invention clearer and more specific, the present invention is further described in detail with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the scope of protection of the present invention.

[0026] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0027] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "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, an electrical connection, or mutual communication; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0028] See also Figure 2 , Figure 4 and Figure 5 A cross-cutting machine using a cross-cutting knife shaft fluid static pressure bearing includes a cross-cutting machine frame 114 mainly composed of a left wall panel and a right wall panel, a cross-cutting knife roller 100 is rotatably connected between the left wall panel and the right wall panel, one end of the cross-cutting knife roller 100 is connected to a driving assembly 110, and a cross-cutting knife 115 is fixed on the cross-cutting knife roller 100, wherein the cross-cutting knife roller 100 includes a core shaft 104 and a roller 105, one end of the core shaft 104 is provided with a long hole 102 arranged along its axial direction, and the middle part of the core shaft 104 is provided with a radial connecting surface thereof with the long hole 102 Through hole 101, the core shaft 104 is provided with an adapter 111 at the end of one end of the long hole 102, and the adapter 111 is provided with a liquid inlet connected to the long hole 102; the roller 105 is sleeved on the outer surface of the core shaft 104, and the gap between the core shaft 104 and the roller 105 forms a hydraulic cavity 103, and the two ends of the roller 105 are fixed and sealed with a driven gear 108, and the driven gear 108 is concentrically fixed with a bearing 106, and the bearing 106 is rotatably connected to the core shaft 104, and the cross-cutting knife 115 is fixed on the outer surface of the roller 105.

[0029] In the above, by providing an axially arranged long hole 102 at one end of the core shaft 104, and a radial through hole 101 connecting the long hole 102 and the hydraulic cavity 103 between the surface of the core shaft 104 and the roller 105, the hydraulic oil enters the long hole 102 from the liquid inlet, and enters the hydraulic cavity 103 through the radial through hole 101. Since the hydraulic pressure has a certain pressure, the hydraulic oil can fill the hydraulic cavity 103 and maintain a certain pressure, that is, the core shaft 104 and the roller 105 are in contact through the hydraulic oil, which reduces the direct friction between the core shaft 104 and the roller 105, and plays a lubricating role between the core shaft 104 and the roller 105, thereby increasing the service life of the bearing 106.

[0030] See also Figure 2 and Figure 3Specifically, gear boxes 109 are provided at both ends of the roller 105, and the gear boxes 109 are fixed on the left wall panel and the right wall panel respectively. A sealing ring 107 is provided between the gear box 109 and the gear, so that the hydraulic oil enters the gear box 109 through the bearing 106. The sealing ring 107 is preferably a skeleton sealing ring, which lubricates the bearing 106 and the gear at the same time. Since the gear box 109 and the gear are sealed, the hydraulic oil will not leak out of the gear box 109 from between the gear box 109 and the gear. A liquid outlet 116 is provided at the bottom of the gear box 109, and the liquid outlet 116 is connected to the oil tank 201 through the oil return pipe 219 to realize the circulation of the hydraulic oil.

[0031] See also Figure 5 Preferably, the long hole 102 is arranged at the center of the left end of the mandrel 104, a plurality of annular grooves 119 are arranged on the circumferential surface of the middle part of the mandrel 104, and the radial through hole 101 is arranged on the annular groove 119. The length of the long hole 102 is only the length from one end of the mandrel 104 to the middle part of the mandrel 104, and it is not a through hole connecting the two end surfaces of the mandrel 104. A plurality of annular grooves 119 are arranged on the circumferential surface of the middle part of the mandrel 104, so that the hydraulic oil can be quickly and evenly distributed on the surface of the mandrel 104, that is, quickly fill the hydraulic cavity 103. A plurality of radial through holes 101 can be arranged on each annular groove 119 to increase the circulation of the hydraulic oil and avoid blockage.

[0032] See also Figure 2 Specifically, it also includes a fixing seat 112 and a keyless shaft ring 113. The keyless shaft ring 113 is connected to the ends of the core shaft 104. The fixing seat 112 is arranged on the outside of the keyless shaft ring 113. The fixing seat 112 is respectively fixed to the left wall panel and the right wall panel by screws, that is, the left and right ends of the core shaft 104 are connected to the fixing seat 112 through the keyless shaft ring 113.

[0033] There are two cross-cutting knife rollers 100, which are an upper cross-cutting knife roller 100B and a lower cross-cutting knife roller 100A. The lower cross-cutting knife roller 100A is placed below the upper cross-cutting knife roller 100B. The driven gear 108 on the upper cross-cutting knife roller 100B is meshed and connected with the driven gear 108 on the same end of the lower cross-cutting knife roller 100A. The driven gear 108 of the lower cross-cutting knife roller 100A is also meshed and connected with a driving gear 118. The driven gear 108 of the lower cross-cutting knife roller 100A, the driven gear 108 on the upper cross-cutting knife roller 100B and the driving gear 118 are placed inside the same gear box 109. The driving assembly 110 is connected to the driving gear 118, and the driving assembly 110 is fixed to the outside of the frame. Specifically, the driving assembly 110 and the gear box 109 provided with the driving gear 118 are respectively fixed on both sides of a wall panel of the corresponding frame, and are arranged on the left wall panel in the figure. The driving assembly 110 drives the driving gear 118 to rotate, and the driving gear 118 drives the lower cross-cutting roller 100A and the upper cross-cutting roller 100B to rotate. The driving assembly 110 is a motor, or a combination of a motor and a reducer.

[0034] During operation, the lower cross-cutting roller 100A and the upper cross-cutting roller 100B rotate synchronously in opposite directions under the drive of the driving assembly 110, so that the cross-cutting knife 115 on the lower cross-cutting roller 100A and the cross-cutting knife 115 on the upper cross-cutting roller 100B form a shear force on the cardboard to achieve cutting of the cardboard.

[0035] See also Figure 1 , Figure 6 and Figure 7A cross-cutting machine system using a cross-cutting knife shaft fluid static pressure bearing includes the cross-cutting machine using the cross-cutting knife shaft fluid static pressure bearing described above, and also includes a hydraulic fluid system component 200, that is, a component for providing hydraulic oil to the cross-cutting machine of the cross-cutting knife 115 shaft fluid static pressure bearing 106. Among them, the hydraulic fluid system component 200 includes an oil tank 201 and a main pipeline 204, the oil tank 201 is fixed on the cross-cutting machine frame 114, the position of the oil tank 201 on the cross-cutting machine frame 114 can be set according to the actual installation, the oil tank 201 is connected to the liquid inlet of the cross-cutting knife roller 100 through the main pipeline 204, the main pipeline 204 is connected in series with an oil pump 205, the oil pump 205 is connected to the drive motor 202 through a coupling 203, and the drive motor 202 and the oil pump 205 are both fixed on the oil On the box 201, the driving assembly 110 and the driving motor 202 of the cross-cutting knife roller 100 are electrically connected to the controller 220, which controls the driving motor 202 to drive the oil pump 205 to rotate, so that the hydraulic oil inside the oil tank 201 is provided to the cross-cutting knife roller 100 through the main pipeline 204, and is maintained in a certain pressure range in the hydraulic cavity 103 of the cross-cutting knife roller 100, wherein the pressure range is the pressure range in which the hydraulic oil can form a hydrostatic bearing 106 inside the hydraulic cavity 103. If the pressure is too low, the hydraulic oil cannot support the roller 105; if the pressure is too high, the hydraulic oil will increase the friction between the roller 105 and the mandrel 104, affecting the rotation of the roller 105. The pressure range is preferably 7-15 bar.

[0036] In a preferred embodiment, a pressure relief valve 206, a temperature detector 215, a first ball valve 208, a first pressure sensor 214, a filter 209, a fluid sensor 211, a second ball valve 212 and a second pressure sensor 213 are connected in series between the oil pump 205 and the cross-cutting knife roller 100 in sequence, and a cooling fan 207 is installed inside the oil tank 201. The cooling fan 207, the temperature detector 215, the first ball valve 208, the first pressure sensor 214, the fluid sensor 211, the second ball valve 212 and the second pressure sensor 213 are electrically connected to the controller 220. The pressure relief valve 206 is used to limit the maximum oil pressure value of the main pipeline 204 to prevent it from exceeding the above-mentioned pressure range. The temperature detector 215 is used to detect the temperature of the hydraulic oil and transmit the temperature signal to the controller 220. The controller 220 analyzes the temperature signal. When the temperature value is too high, the heat dissipation fan 207 is controlled to start to cool the hydraulic oil. The first ball valve 208 and the second ball valve 212 are used to control the on-off of the main pipeline 204. The first pressure sensor 214 is used to detect the oil pressure value at the front end of the filter 209. The second pressure sensor 213 is used to detect the oil pressure value at the rear end of the filter 209, that is, the actual oil pressure value provided to the cross-cutting knife roller 100. The filter 209 is used to filter the hydraulic oil. impurities, so it is the most easily blocked position in the main pipeline 204. The controller 220 determines whether the filter 209 is blocked by comparing the values ​​of the first pressure sensor 214 and the second pressure sensor 213. That is, if the value of the first pressure sensor 214 is much larger than the value of the second pressure sensor 213, it is determined that there is a blockage inside the filter 209 to ensure the safety of the oil supply to the main pipeline 204. When the pressure of the oil circuit (any pressure value of the first pressure sensor 214 and the second pressure sensor 213) exceeds or falls below the range value, the corresponding pressure sensor will send a signal to the controller, and at the same time stop the cutting action of the cross-cutting knife assembly or even shut down the machine; it can also avoid the lack of lubricating oil at the bearing.

[0037] In a preferred embodiment, it also includes a pressure gauge 210, which is connected in series between the filter 209 and the fluid sensor 211, and is used to intuitively display the oil supply pressure; a capacity observation gauge 216 is provided inside the oil tank 201, and a refueling cap 217 is also provided on the top surface of the oil tank 201. The capacity observation gauge 216 is used to display the amount of oil inside the oil tank 201, and the refueling cap 217 is used to add hydraulic oil to the inside of the oil tank 201 and ensure that the inside of the oil tank 201 is connected with the outside, that is, the air pressure inside and outside the oil tank 201 is balanced.

[0038] Since the main pipeline 204 needs to supply hydraulic oil to the upper cross-cutting knife roller 100B and the lower cross-cutting knife roller 100A at the same time, an oil separator block 218 is arranged between the main pipeline 204 and the liquid inlet. The two outlet ends of the oil separator block 218 are respectively connected to the liquid inlets of the upper cross-cutting knife roller 100B and the lower cross-cutting knife roller 100A, and an oil return pipeline 219 is connected between the liquid outlet hole 116 and the oil tank 201.

[0039] It is understandable that those skilled in the art can make equivalent substitutions or changes based on the technical solution and inventive concept of the present invention, and all these changes or substitutions should fall within the protection scope of the present invention.

Claims

1. A cross-cutting machine system using a cross-cutting knife shaft fluid static pressure bearing, including a cross-cutting machine using a cross-cutting knife shaft fluid static pressure bearing; the cross-cutting machine using the cross-cutting knife shaft fluid static pressure bearing includes a cross-cutting machine frame mainly composed of a left wall panel and a right wall panel, a cross-cutting knife roller is rotatably connected between the left wall panel and the right wall panel, one end of the cross-cutting knife roller is connected to a driving assembly, and a cross-cutting knife is fixed on the cross-cutting knife roller, characterized in that: The cross-cutting knife roller includes a core shaft and a roller. One end of the core shaft is provided with a long hole arranged along its axial direction, and the middle part of the core shaft is provided with a radial through hole connecting its surface with the long hole. The core shaft is provided with an adapter at the end of one end where the long hole is provided, and the adapter is provided with a liquid inlet connected with the long hole; the roller is sleeved on the outer surface of the core shaft, and the gap between the core shaft and the roller forms a hydraulic cavity. The two ends of the roller are fixed and sealed with driven gears, and the driven gear is concentrically fixed with a bearing, which is rotatably connected to the core shaft, and the cross-cutting knife is fixed on the outer surface of the roller; both ends of the roller are provided with gear boxes, which are respectively fixed on the left wall panel and the right wall panel, and a sealing ring is provided between the gear box and the gear, and a liquid outlet is provided at the bottom of the gear box; The long hole is arranged at the center position of the left end of the mandrel; A plurality of annular grooves are provided on the circumferential surface of the middle portion of the core shaft, and radial through holes are provided on the annular grooves; It also includes a hydraulic fluid system component, which includes an oil tank and a main pipeline. The oil tank is fixed on the cross-cutting machine frame and is connected to the liquid inlet of the cross-cutting knife roller through the main pipeline. An oil pump is connected in series to the main pipeline. The oil pump is connected to a drive motor through a coupling. The drive motor and the oil pump are both fixed on the oil tank. The drive component of the cross-cutting knife roller and the drive motor are electrically connected to a controller. A pressure relief valve, a temperature detector, a first ball valve, a first pressure sensor, a filter, a fluid sensor, a second ball valve and a second pressure sensor are connected in series between the oil pump and the cross-cutting knife roller. A heat dissipation fan is installed inside the oil tank. The heat dissipation fan, the temperature detector, the first ball valve, the first pressure sensor, the fluid sensor, the second ball valve and the second pressure sensor are electrically connected to the controller. The pressure relief valve is used to limit the maximum oil pressure in the main pipeline.

2. The cross-cutting machine system using a cross-cutting cutter shaft hydrostatic bearing according to claim 1 is characterized in that: It also includes a fixing seat and a keyless shaft ring, the keyless shaft ring is connected to the ends of the core shaft, the fixing seat is arranged on the outside of the keyless shaft ring, the fixing seat is respectively fixed to the left wall panel and the right wall panel by screws, and the left and right ends of the core shaft are connected to the fixing seat by the keyless shaft ring.

3. The cross-cutting machine system using a cross-cutting cutter shaft hydrostatic bearing according to claim 1, characterized in that: There are two cross-cutting knife rollers, which are an upper cross-cutting knife roller and a lower cross-cutting knife roller respectively. The lower cross-cutting knife roller is placed below the upper cross-cutting knife roller. The driven gear on the upper cross-cutting knife roller is meshed and connected with the driven gear at the same end of the lower cross-cutting knife roller. The driven gear of the lower cross-cutting knife roller is also meshed and connected with a driving gear. The driven gear of the lower cross-cutting knife roller, the driven gear on the upper cross-cutting knife roller and the driving gear are placed in the same gear box. The driving assembly is connected to the driving gear, and the driving assembly is fixed on the outside of the frame.

4. The cross-cutting machine system using a cross-cutting cutter shaft hydrostatic bearing according to claim 1, characterized in that: It also includes a pressure gauge which is connected in series between the filter and the fluid sensor. A capacity observation gauge is arranged inside the oil tank, and a refueling cap is arranged on the top surface of the oil tank.

5. The cross-cutting machine system using a cross-cutting cutter shaft hydrostatic bearing according to claim 1, characterized in that: There are two cross-cutting knife rollers, namely an upper cross-cutting knife roller and a lower cross-cutting knife roller. An oil separator is arranged between the main pipeline and the liquid inlet. The two outlet ends of the oil separator are respectively connected to the liquid inlets of the upper cross-cutting knife roller and the lower cross-cutting knife roller. An oil return pipeline is connected between the liquid outlet and the oil tank.

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