Single-shaft liquid-cooled disc-shaped residual film and straw pulverizer
By combining a single-shaft drive with a cooling component, the problem of overheating in the straw crusher bearings is solved, achieving bearing cooling and stable equipment operation, thus ensuring the safety and convenience of the straw crushing process.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- INNER MONGOLIA DEYU INNOVATION MASCH CO LTD
- Filing Date
- 2025-04-24
- Publication Date
- 2026-06-05
AI Technical Summary
After prolonged operation, the bearings of existing straw crushers are prone to overheating and wear, which affects the safety of straw crushing production.
The disc crusher is driven by a single shaft and a cooling component is installed inside the bearing housing. The bearing is cooled by circulating coolant. The positioning roller improves the stability of the disc rotation. The electrical components are controlled by a control panel.
This effectively prevents bearing overheating, extends bearing life, improves the safety and convenience of equipment use, and ensures the stability and efficiency of the straw crushing process.
Smart Images

Figure CN224319939U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of straw crushing technology, specifically a single-shaft liquid-cooled disc residual film straw crusher. Background Technology
[0002] Straw crushers are machines used to crush combustible agricultural waste such as corn stalks, straw, peanut shells, bean stalks, and firewood, thus preventing these crop straws from burning in vain, protecting the environment, and effectively developing renewable energy.
[0003] Existing straw crushers typically utilize bearings to reduce force transmission losses during the straw crushing process. However, after prolonged operation, the bearings of straw crushers can overheat, leading to accelerated bearing wear and posing a threat to the safety of straw crushing production. To address this issue, we provide a single-shaft liquid-cooled disc residual film straw crusher. Utility Model Content
[0004] The purpose of this invention is to overcome the shortcomings of the existing technology and provide a single-shaft liquid-cooled disc residual film straw crusher.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a single-shaft liquid-cooled disc residual film straw crusher, comprising a lower frame, an upper frame fixedly connected to the upper surface of the lower frame by bolts, a disc rotatably connected to the upper surface of the upper frame, a crusher box connected to the disc fixedly connected to the bottom surface of the lower frame, a support plate fixedly connected to the inner wall of the lower frame, a drive motor mounted on the upper surface of the support plate, a single-shaft crushing roller for straw crushing fixedly connected to the drive motor by a coupling, bearing seats fixedly connected to one side and the other side of the crusher box, and bearings with inner rings fixed to the outer surface of the single shaft embedded in the inner wall of the single-shaft crushing roller, and a drive assembly for driving the disc to rotate and a cooling assembly for cooling the bearings inside the bearing seats.
[0006] Furthermore, the drive assembly includes a hydraulic gear pump mounted on the upper surface of the lower frame and a gear ring fixedly connected to the outer surface of the disk. The outer surface of the output shaft of the hydraulic gear pump is fixedly connected to a gear pump gear, and the gear pump gear meshes with the gear ring. After the hydraulic gear pump is started, it can drive the gear ring to rotate through the meshing action between the gear pump gear and the gear ring, thereby driving the disk to rotate.
[0007] Furthermore, the drive assembly also includes a hydraulic oil tank and a hydraulic control valve fixed to the inner wall of the lower frame. An oil pump motor is mounted on the upper surface of the hydraulic oil tank. The output end of the oil pump motor is connected to a first connecting pipe that is connected to the oil inlet of the hydraulic control valve. The input end of the oil pump motor is connected to a second connecting pipe that is connected to the hydraulic oil tank. One side of the hydraulic oil tank is connected to a third connecting pipe that is connected to the oil drain port of the hydraulic control valve, and a fourth connecting pipe that is connected to the hydraulic gear pump. The outer surface of the hydraulic gear pump is connected to a fifth connecting pipe that is connected to the oil inlet of the hydraulic control valve. Through the cooperation and arrangement of the above structures, the hydraulic gear pump can be easily driven to operate.
[0008] Furthermore, the cooling assembly includes a liquid-cooled water tank fixedly connected to the lower frame, and a sixth connecting pipe and a seventh connecting pipe connected to the bearing housing at the corresponding position. A water pump is installed on the bottom surface of the liquid-cooled water tank. The input end of the water pump passes through the liquid-cooled water tank and extends into the interior of the liquid-cooled water tank, and the output end of the water pump is connected to the seventh connecting pipe. A cooler connected to the sixth connecting pipe is installed on the back of the liquid-cooled water tank, and the output end of the cooler is connected to the liquid-cooled water tank. Through the coordinated arrangement of the above structures, the coolant circulating inside the bearing housing can be used to cool and reduce the temperature of the bearing, thereby preventing the bearing from overheating and extending the service life of the bearing.
[0009] Furthermore, four positioning rollers are fixedly connected to the upper surface of the upper frame, and the positioning rollers are rotatably connected to the disc. The positioning rollers are in contact with the outer surface of the disc, which can limit and support the disc, thereby improving the stability of the disc when it rotates.
[0010] Furthermore, a control panel is installed on the upper surface of the upper frame. The drive motor, hydraulic gear pump, oil pump motor, water pump, and refrigeration unit are all electrically connected to the control panel. By setting up the control panel, the electrical components inside the single-shaft liquid-cooled disc residual film straw crusher can be conveniently controlled in a unified manner, thereby improving the convenience of using the equipment.
[0011] Furthermore, the discharge port of the crusher box is set at an angle, which facilitates the discharge of the crushed straw from the crusher box and makes subsequent collection convenient.
[0012] Furthermore, the crushing blades on the single-shaft crushing roller are evenly distributed on the outer surface of the single-shaft crushing roller in a circumferential arrangement. The single-shaft crushing roller can be made of high-strength steel and has serrations. The evenly distributed single-shaft crushing roller can make the straw crushing more uniform and thorough.
[0013] Compared with existing technologies, this single-shaft liquid-cooled disc residual film straw crusher has the following advantages:
[0014] 1. This utility model uses a single-shaft drive to drive a disc straw crusher to crush straw. The bearing installed inside the bearing housing reduces the loss of force transmission during the straw crushing process. The coolant circulating inside the bearing housing cools the bearing, thereby preventing the bearing from overheating and extending its service life, thus ensuring the safety of the straw crushing production process.
[0015] 2. By setting a positioning roller, this utility model can limit and support the disc, thereby improving the stability of the disc during rotation. By setting a control panel, it is possible to conveniently control the electrical components inside the single-shaft liquid-cooled disc straw crusher, thereby improving the convenience of using the equipment. Attached Figure Description
[0016] Figure 1 This is a front view of the three-dimensional structure of this utility model;
[0017] Figure 2 This is a rear view schematic diagram of the three-dimensional structure of this utility model;
[0018] Figure 3 This is a left-side view of the three-dimensional structure of this utility model;
[0019] Figure 4 This is a schematic diagram of a partial structure of the drive component of this utility model. Figure 1 ;
[0020] Figure 5 This is a schematic diagram of a partial structure of the drive component of this utility model. Figure 2 ;
[0021] Figure 6 This is a partial structural diagram of the cooling component of this utility model.
[0022] In the diagram: 1. Lower frame; 2. Upper frame; 3. Disc; 4. Crusher housing; 5. Support plate; 6. Drive motor; 7. Single-shaft crushing roller; 8. Bearing housing; 901. Hydraulic gear pump; 902. Gear pump gear; 903. Gear ring; 904. Hydraulic oil tank; 905. Oil pump motor; 906. Hydraulic control valve; 907. First connecting pipe; 908. Second connecting pipe; 909. Third connecting pipe; 9010. Fourth connecting pipe; 9011. Fifth connecting pipe; 1001. Liquid cooling water tank; 1002. Sixth connecting pipe; 1003. Seventh connecting pipe; 1004. Water pump; 1005. Refrigerator; 11. Positioning roller; 12. Control panel. Detailed Implementation
[0023] The principles and features of this utility model are described below with reference to the accompanying drawings. The examples given are only for explaining this utility model and are not intended to limit the scope of this utility model.
[0024] As described in the background art, existing straw crushers typically utilize bearings to reduce force transmission losses during straw crushing. However, after prolonged operation, the bearings of the straw crusher may overheat, leading to accelerated bearing wear and posing a threat to the safety of straw crushing production. Therefore, this embodiment provides a single-shaft liquid-cooled disc residual film straw crusher.
[0025] See Figures 1 to 6 This embodiment proposes a single-shaft liquid-cooled disc residual film straw crusher, including a lower frame 1. An upper frame 2 is fixedly connected to the upper surface of the lower frame 1 by bolts. A disc 3 is rotatably connected to the upper surface of the upper frame 2. A crusher box 4 communicating with the disc 3 is fixedly connected to the bottom surface of the lower frame 1. A support plate 5 is fixedly connected to the inner wall of the lower frame 1. A drive motor 6 is installed on the upper surface of the support plate 5. A single-shaft crushing roller 7 for straw crushing is fixedly connected to the drive motor 6 through a coupling.
[0026] The lower frame 1 and the upper frame 2 are connected by bolts to form a whole. Then, the drive motor 6 installed on the support plate 5 is powered on and started, which can drive the single shaft crushing roller 7 to rotate through the coupling, thereby crushing the straw that enters the crusher box 4.
[0027] The crushing blades on the single-shaft crushing roller 7 are evenly distributed on the outer surface of the single-shaft crushing roller 7 in a circumferential arrangement. The single-shaft crushing roller 7 can be made of high-strength steel and has serrations. The evenly distributed single-shaft crushing roller 7 can make the straw crushing more uniform and thorough.
[0028] Four positioning rollers 11 are fixedly connected to the upper surface of the upper frame 2, and the positioning rollers 11 are rotatably connected to the disc 3. The positioning rollers 11 are in contact with the outer surface of the disc 3, which can limit and support the disc 3, thereby improving the stability of the disc 3 when it rotates.
[0029] The discharge port of the crusher box 4 is set at an angle, which makes it easy for the crushed straw to be discharged from the crusher box 4 and facilitates subsequent collection.
[0030] Bearing seats 8 are fixedly connected to one side and the other side of the crusher housing 4. The bearing seats 8 are equipped with bearings whose inner rings are fixed to the outer surface of the single shaft embedded in the inner wall of the single shaft crushing roller 7. The bearings installed inside the bearing seats 8 make the single shaft crushing roller 7 more stable when rotating and reduce the resistance of the single shaft crushing roller 7 when rotating, thereby avoiding jamming and swaying of the single shaft crushing roller 7 during use.
[0031] In addition, the single-shaft crushing roller 7 is located inside the crusher housing 4, and the single-shaft crushing roller 7 is fixed by welding together a ring block with crushing blades and a fixed shaft separately set in the inner wall of the ring block. At the same time, the inner ring of the bearing set inside the bearing seat 8 is fixed to the outer surface of the fixed shaft in the single-shaft crushing roller 7, and the two ends of the coupling are respectively fixed to the output shaft end of the drive motor 6 and the fixed shaft in the single-shaft crushing roller 7, thereby realizing the drive of the single-shaft crushing roller 7 to rotate.
[0032] The lower frame 1 is provided with a drive assembly for driving the disk 3 to rotate and a cooling assembly for cooling the bearing inside the bearing housing 8. The drive assembly includes a hydraulic gear pump 901 mounted on the upper surface of the lower frame 1 and a gear ring 903 fixedly connected to the outer surface of the disk 3. A gear pump gear 902 is fixedly connected to the outer surface of the output shaft of the hydraulic gear pump 901, and the gear pump gear 902 meshes with the gear ring 903.
[0033] The drive assembly also includes a hydraulic oil tank 904 and a hydraulic control valve 906 fixed to the inner wall of the lower frame 1. An oil pump motor 905 is mounted on the upper surface of the hydraulic oil tank 904. The output end of the oil pump motor 905 is connected to a first connecting pipe 907 that is connected to the oil inlet of the hydraulic control valve 906. The input end of the oil pump motor 905 is connected to a second connecting pipe 908 that is connected to the hydraulic oil tank 904. A third connecting pipe 909 that is connected to the oil drain port of the hydraulic control valve 906 is connected to one side of the hydraulic oil tank 904, and a fourth connecting pipe 9010 that is connected to the hydraulic gear pump 901. A fifth connecting pipe 9011 that is connected to the oil inlet of the hydraulic control valve 906 is connected to the outer surface of the hydraulic gear pump 901.
[0034] The hydraulic oil tank 904 stores hydraulic oil for driving the hydraulic gear pump 901. The oil filling port of the hydraulic oil tank 904 is equipped with a cap for sealing the oil filling port. When the oil pump motor 905 is connected to the power supply and started, the hydraulic oil inside the hydraulic oil tank 904 can be drawn through the second connecting pipe 908, and then transported to the hydraulic control valve 906 through the first connecting pipe 907, and then to the hydraulic gear pump 901 through the fifth connecting pipe 9011, so as to drive the hydraulic gear pump 901 to run. Through the meshing action between the gear 902 and the gear ring 903 of the gear pump, the gear ring 903 can be driven to rotate, thereby driving the disc 3 to rotate.
[0035] Furthermore, the hydraulic oil can be transported back to the hydraulic oil tank 904 through the fourth connecting pipe 9010, and the hydraulic control valve 906 can be used to control the delivery pressure, flow rate and direction of the hydraulic oil. At the same time, the third connecting pipe 909, which is connected to the hydraulic oil tank 904 and the drain port of the hydraulic control valve 906 respectively, can ensure that the pressure setting value of the oil outlet of the hydraulic control valve 906 is constant.
[0036] The cooling assembly includes a liquid-cooled water tank 1001 fixedly connected to the lower frame 1, and a sixth connecting pipe 1002 and a seventh connecting pipe 1003 connected to the bearing seat 8 at the corresponding position. A water pump 1004 is installed on the bottom surface of the liquid-cooled water tank 1001. The input end of the water pump 1004 passes through the liquid-cooled water tank 1001 and extends into the interior of the liquid-cooled water tank 1001. The output end of the water pump 1004 is connected to the seventh connecting pipe 1003. A cooler 1005 connected to the sixth connecting pipe 1002 is installed on the back of the liquid-cooled water tank 1001. The output end of the cooler 1005 is connected to the liquid-cooled water tank 1001.
[0037] The cooling assembly includes a liquid-cooled water tank 1001 fixedly connected to the lower frame 1, and a sixth connecting pipe 1002 and a seventh connecting pipe 1003 connected to the bearing seat 8 at the corresponding position. A water pump 1004 is installed on the bottom surface of the liquid-cooled water tank 1001. The input end of the water pump 1004 passes through the liquid-cooled water tank 1001 and extends into the interior of the liquid-cooled water tank 1001. The output end of the water pump 1004 is connected to the seventh connecting pipe 1003. A cooler 1005 connected to the sixth connecting pipe 1002 is installed on the back of the liquid-cooled water tank 1001. The output end of the cooler 1005 is connected to the liquid-cooled water tank 1001.
[0038] The liquid cooling tank 1001 stores coolant for bearing cooling. The tank has an inlet for adding coolant and a cap for sealing it. When the water pump 1004 is powered on and started, it draws coolant from the tank, allowing the coolant to flow sequentially through the pump 1004, the seventh connecting pipe 1003, the bearing housing 8, the sixth connecting pipe 1002, and the cooler 1005 before finally entering the tank. Powering on the cooler 1005 further cools the coolant flowing through it, ensuring it remains at a low temperature to guarantee effective bearing cooling.
[0039] The upper surface of the upper frame 2 is equipped with a control panel 12. The drive motor 6, hydraulic gear pump 901, oil pump motor 905, water pump 1004 and refrigeration unit 1005 are all electrically connected to the control panel 12. By setting up the control panel 12, the electrical components inside the single-shaft liquid-cooled disc residual film straw crusher can be conveniently controlled in a unified manner, thereby improving the convenience of using the equipment.
[0040] The components in the accompanying drawings of this utility model are for styling reference only and are not specific dimensional standards. The specific dimensions are determined according to the actual production requirements, and the materials of each component can be replaced accordingly based on actual needs.
[0041] All electrical components in this invention are commercially available, conventional equipment known to those skilled in the art. Models can be selected or customized according to actual needs. The setting method, installation method, and electrical connection method can be easily understood by those skilled in the art by following the instructions for use, and will not be described in detail here.
[0042] Working Principle: When using the single-shaft liquid-cooled disc straw crusher, the drive motor 6 mounted on the support plate 5 can be powered on and started. This drives the single-shaft crushing roller 7 to rotate via the coupling, thus crushing the straw entering the crusher chamber 4. Simultaneously, the oil pump motor 905 can be powered on and started, drawing hydraulic oil from the hydraulic oil tank 904 through the second connecting pipe 908. This oil is then transported through the first connecting pipe 907 to the hydraulic control valve 906, and subsequently through the fifth connecting pipe 9011 to the hydraulic gear pump 901, driving the hydraulic gear pump 901 to operate. The meshing action between the gear 902 and the gear ring 903 of the gear pump... The gear ring 903 is driven to rotate, thereby driving the disc 3 to rotate. Hydraulic oil can be transported back to the hydraulic oil tank 904 through the fourth connecting pipe 9010. The hydraulic control valve 906 can control the delivery pressure, flow rate and direction of the hydraulic oil. At the same time, the third connecting pipe 909, which is connected to the hydraulic oil tank 904 and the drain port of the hydraulic control valve 906 respectively, can ensure that the pressure setting value of the outlet of the hydraulic control valve 906 is constant. When the feed port on the disc 3 rotates to connect with the feed port of the crusher box 4, the straw can enter the crusher box 4. After the disc 3 continues to rotate, the straw can enter the crusher box 4 intermittently. The crushed straw can be discharged through the inclined discharge port.
[0043] After the straw crusher has been working for a period of time, the water pump 1004 can be connected to the power supply and started to draw the coolant inside the liquid cooling tank 1001. The coolant then passes through the water pump 1004, the seventh connecting pipe 1003, the bearing seat 8, the sixth connecting pipe 1002, and the cooler 1005 in sequence, and finally flows into the liquid cooling tank 1001. The cooler 1005 is then connected to the power supply and started to cool the coolant flowing from the cooler 1005, so that the coolant is always kept at a low temperature to ensure the cooling effect on the bearing, thereby avoiding overheating of the bearing, extending the service life of the bearing, and ensuring the safety of the straw crushing production process.
Claims
1. A single-shaft liquid-cooled disc residual film straw crusher, comprising a lower frame (1), characterized in that: The upper surface of the lower frame (1) is fixedly connected to the upper frame (2) by bolts. The upper surface of the upper frame (2) is rotatably connected to the disc (3). The bottom surface of the lower frame (1) is fixedly connected to the crusher box (4) which communicates with the disc (3). The inner wall of the lower frame (1) is fixedly connected to the support plate (5). The upper surface of the support plate (5) is equipped with a drive motor (6). The drive motor (6) is fixedly connected to a single-shaft crushing roller (7) for straw crushing through a coupling. One side and the other side of the crusher housing (4) are fixedly connected to bearing seats (8), and the bearing seats (8) are provided with bearings whose inner rings are fixed to the outer surface of the single shaft embedded in the inner wall of the single shaft crushing roller (7). The lower frame (1) is provided with a drive assembly for driving the disc (3) to rotate, and a cooling assembly for cooling the bearings inside the bearing seats (8).
2. The single-shaft liquid-cooled disc straw crusher according to claim 1, characterized in that: The drive assembly includes a hydraulic gear pump (901) mounted on the upper surface of the lower frame (1) and a gear ring (903) fixedly connected to the outer surface of the disc (3). A gear pump gear (902) is fixedly connected to the outer surface of the output shaft of the hydraulic gear pump (901), and the gear pump gear (902) meshes with the gear ring (903).
3. The single-shaft liquid-cooled disc residual film straw crusher according to claim 2, characterized in that: The drive assembly also includes a hydraulic oil tank (904) and a hydraulic control valve (906) fixed to the inner wall of the lower frame (1). An oil pump motor (905) is mounted on the upper surface of the hydraulic oil tank (904). The output end of the oil pump motor (905) is connected to a first connecting pipe (907) that is connected to the oil inlet of the hydraulic control valve (906). The input end of the oil pump motor (905) is connected to a second connecting pipe (908) that is connected to the hydraulic oil tank (904). One side of the hydraulic oil tank (904) is connected to a third connecting pipe (909) that is connected to the oil drain port of the hydraulic control valve (906) and a fourth connecting pipe (9010) that is connected to the hydraulic gear pump (901). The outer surface of the hydraulic gear pump (901) is connected to a fifth connecting pipe (9011) that is connected to the oil inlet of the hydraulic control valve (906).
4. The single-shaft liquid-cooled disc residual film straw crusher according to claim 1, characterized in that: The cooling assembly includes a liquid-cooled water tank (1001) fixedly connected to the lower frame (1), and a sixth connecting pipe (1002) and a seventh connecting pipe (1003) connected to the bearing seat (8) at the corresponding position. A water pump (1004) is installed on the bottom surface of the liquid-cooled water tank (1001). The input end of the water pump (1004) passes through the liquid-cooled water tank (1001) and extends into the interior of the liquid-cooled water tank (1001). The output end of the water pump (1004) is connected to the seventh connecting pipe (1003). A cooler (1005) is installed on the back of the liquid-cooled water tank (1001) and is connected to the sixth connecting pipe (1002). The output end of the cooler (1005) is connected to the liquid-cooled water tank (1001).
5. A single-shaft liquid-cooled disc residual film straw crusher according to claim 1, characterized in that: Four positioning rollers (11) are fixedly connected to the upper surface of the upper frame (2), and the positioning rollers (11) are rotatably connected to the disc (3).
6. A single-shaft liquid-cooled disc residual film straw crusher according to claim 1, characterized in that: The upper surface of the upper frame (2) is equipped with a control panel (12), and the drive motor (6), hydraulic gear pump (901), oil pump motor (905), water pump (1004) and refrigeration unit (1005) are all electrically connected to the control panel (12).
7. A single-shaft liquid-cooled disc residual film straw crusher according to claim 1, characterized in that: The discharge port of the crusher box (4) is set at an angle.
8. A single-shaft liquid-cooled disc residual film straw crusher according to claim 1, characterized in that: The crushing blades on the single-shaft crushing roller (7) are evenly distributed on the outer surface of the single-shaft crushing roller (7) in a circumferential arrangement.