A CBC all-cast iron floating bimetallic side plate gear pump

Abstract

The application relates to the technical field of gear pumps, and discloses a CBC full-cast-iron floating double-metal side plate gear pump which comprises two metal floating plate two fixedly connected at one outer wall of two metal floating plate one, an outer wall of one end of the side plate away from a water inlet is provided with a water outlet, outer walls of the two metal floating plate one are provided with a plurality of pressure relief grooves, and the pressure relief grooves are in pairs; the metal floating plate two is made of metal (such as copper alloy) with good heat conductivity and flexibility, which helps to dissipate the heat generated by friction, and meanwhile, the metal floating plate one and the metal floating plate two are combined with each other, so that after slight deformation of a gear set, the metal floating plate one and the metal floating plate two can still be tightly combined with the inner wall of the side plate and the outer wall of the driving gear, thereby guaranteeing the sealing performance of the pump body during operation, improving the operation efficiency and prolonging the operation time of the pump body.

Description

Technical Field

[0001] This invention relates to the field of gear pump technology, specifically to a CBC all-cast iron floating bimetallic side plate gear pump. Background Technology

[0002] Gear pumps, as core power components for oil transportation and pressure establishment in the industrial field, are widely used in hydraulic transmission systems, equipment lubrication systems, and petrochemical media transportation scenarios. Their core performance indicators—volume efficiency, service life, and adaptability to operating conditions—directly affect the operating efficiency and reliability of downstream equipment.

[0003] When a gear pump is running, the gears rub against the inner wall of the side plate, causing wear. This results in a loose fit between the gears and the inner wall of the side plate. Furthermore, after prolonged operation, the wear of the gears can create gaps between them and the side plate, leading to reduced sealing during pump operation and decreased volumetric efficiency of the gears. Ultimately, this affects the transmission efficiency of the gear pump. Summary of the Invention

[0004] To solve the above-mentioned technical problems, the present invention provides a CBC all-cast iron floating bimetallic side plate gear pump, including a base, a side plate fixedly connected to the outer wall of the base, a front cover fixedly connected to the outer wall of the side plate, and a water inlet opened on the outer wall of the side plate, and further including: The support mechanism is fixedly connected to the inner wall of the side plate at its outer wall. The support mechanism is used to support the operation of other structures and components. The floating mechanism is fixedly connected to the outer wall of the support mechanism. The floating mechanism is used to assist the gear in fitting against the inner wall of the side plate. The pressure relief mechanism is fixedly connected to the inner wall of the floating mechanism at its outer wall. The pressure relief mechanism is used to relieve excessive pressure generated by the gear pump during operation. Two locating pins are fixedly connected to the inner wall of the side panel, and a skeleton oil seal is fixedly connected to the inner wall of the front cover.

[0005] Preferably, the support mechanism includes: The support component is fixedly connected to the inner wall of the skeleton oil seal at its outer wall. The driven component is fixedly connected to the inner wall of the front cover at its outer wall.

[0006] Preferably, the floating mechanism includes: A floating component, the outer wall of which is fixedly connected to the outer wall of the driven component; The slot assembly is located on the inner wall of the side panel.

[0007] Preferably, the pressure relief mechanism includes: A sealing assembly, the outer wall of which is fixedly connected to the outer wall of a support assembly; The pressure relief assembly is slidably connected to the inner wall of the floating assembly.

[0008] Preferably, the support assembly includes a drive gear fixedly connected to the inner wall of the skeleton oil seal, a snap ring fixedly connected to the inner wall of the front cover, and two support shafts fixedly connected to the outer wall of the drive gear. Two support shafts are located at the two ends of the drive gear. The outer wall of one support shaft is fixedly connected to the inner wall of the base; the outer wall of the other support shaft is fixedly connected to the inner wall of the front cover.

[0009] When using the device, first place it in the appropriate position. Then, connect the inlet to the delivery pipe for the liquid to be delivered. Also, connect the drive shaft of the drive motor to the drive gear. When liquid needs to be delivered, start the drive motor so that the motor drives the drive gear to start rotating. Preferably, the driven component includes a second support shaft fixedly connected to the inner wall of the front cover, a driven gear fixedly connected to the inner wall of the second support shaft, and two metal floating plates fixedly connected to the inner wall of the side plate, with the two metal floating plates located at both ends of the side plate respectively.

[0010] During operation, the gears rub against the inner wall of the side plate. Additionally, due to insufficient meshing or wear, the gears undergo slight deformation, resulting in a loose fit between them and the inner wall of the side plate. This reduces the pump's efficiency. To address this, two metal floating plates are installed on either side of the drive gear. A second metal floating plate is fixed near the outer wall of the side plate. The first metal floating plate is made of wear-resistant metal, such as alloy steel, which can withstand the friction between the drive gear and the side plate. Preferably, the floating assembly includes two metal floating plates fixedly connected to the outer wall of two metal floating plates, with an outlet provided on the outer wall of the side plate away from the inlet, and a plurality of pressure relief grooves provided on the outer wall of the two metal floating plates, with the plurality of pressure relief grooves forming a group of two.

[0011] The second metal floating plate uses a metal with good thermal conductivity and flexibility, such as copper alloy, which helps to dissipate the heat generated by friction. At the same time, the combination of the first and second metal floating plates allows them to remain tightly fitted to the inner wall of the side plate and the outer wall of the drive gear even after the gear set undergoes slight deformation, thus ensuring the pump body's sealing performance during operation, improving its operating efficiency and overall performance. Meanwhile, the base and side plates adopt a CBC all-cast iron integral structure, which improves the pump body's strength, corrosion resistance, and sealing performance. The integral design reduces the number of parts, improves the overall sealing performance of the pump body, and reduces the possibility of liquid leakage. Preferably, the slot assembly includes two follower slots formed on the inner wall of the side plate, two sealing strips are fixedly connected to the inner walls of the two follower slots, and a support shaft is fixedly connected to the outer wall of the driven gear at the end away from the support shaft two. When a gear pump is running, its operating principle causes a pressure difference between the inlet and outlet sides, resulting in a pressure differential. This pressure difference causes different degrees of deformation on both sides of the metal floating plate. This deformation reduces the fit between the metal floating plate and the driving and driven gears. Simultaneously, this pressure difference may also cause the metal floating plate to tilt, causing it to jam and reducing its effect on the pump body. A sealing strip is installed between the metal floating plate and the side plate. When the metal floating plate deforms, the sealing strip is also subjected to pressure and deforms. This deformation causes a protrusion at the contact point with the metal floating plate. Because the space between the metal floating plate and the sealing strip is limited, this deformation further restricts the deformation of the metal floating plate. Simultaneously, the deformation of the sealing strip creates an interference fit between the sealing strip, the side plate, and the metal floating plate, further increasing the sealing performance between the metal floating plate and the driving and driven gears after deformation, thereby enhancing the pump's operating efficiency. The outer wall of the support shaft three is fixedly connected to the inner wall of the base.

[0012] Preferably, the sealing assembly includes two sliding grooves formed on the outer walls at both ends of the drive gear, and two sealing rings are slidably connected to the inner walls of the two sliding grooves.

[0013] When the driving gear and driven gear undergo slight deformation, causing the two metal floating plates to change accordingly, the uncertainty of the deformation position and the difference in deformation amount during operation will lead to gaps between the driving gear, driven gear, and metal floating plates. This will result in liquid leakage during operation, affecting its operating efficiency. Simultaneously, the gear pump generates high pressure during operation, which will create gaps between the driving gear, metal floating plates, and the driving and driven gears, causing leakage. At this point, sealing rings are installed at both ends of the teeth of the driving and driven gears. When the gear pump is running, a large pressure will be generated near the outlet, causing the metal... When the floating plate deforms, the sealing ring is also subjected to pressure, causing its position to move with the deformation of the floating plate. As the sealing ring moves, its lip remains in contact with the surface of the floating plate under pressure. If the pressure increases further, the movable distance of the sealing ring is greater than that of the floating plate, thus increasing the pressure on the sealing ring. This causes the sealing ring to move further toward the floating plate, and its lip to further adhere to the floating plate, thereby enhancing the sealing performance during pump operation, improving the volumetric efficiency of the pump, and increasing its overall operating efficiency. Preferably, the pressure relief assembly includes several pistons slidably connected to the inner walls of several pressure relief grooves, several O-rings fixedly connected to the outer walls of the several pistons, and several return springs sleeved on the outer walls of the several pistons.

[0014] During gear pump operation, the meshing of the driving and driven gears generates pressure to transport the liquid. As the tip of the driving gear gradually enters the groove of the driven gear, a closed volume is formed between the tooth surfaces of the two gears, side plates, base, and front cover. During meshing, this closed volume gradually decreases and then gradually increases. Since liquid is incompressible, when the volume decreases, the pressure within it increases sharply; when the volume increases, a partial vacuum is created, causing air to be released from the liquid, resulting in power loss in the pump and affecting its operating efficiency. At this time, the metal floats on both sides... A piston is installed in the pressure relief groove on plate one. When the closed volume gradually decreases, the pressure inside increases. This causes the piston to be subjected to pressure, thus moving away from metal floating plate one and compressing the return spring. When the closed volume begins to increase, because there is a certain gap between the piston and the surface of metal floating plate one, when the closed volume reaches the pressure relief groove at this point during the gradual increase, it can communicate with the external liquid, so that the liquid in the closed volume can be replenished. This reduces the damage to the pump body caused by the closed volume during operation and enhances the pump's operating efficiency.

[0015] The present invention has the following beneficial effects: (1) In this invention, during operation of the gear pump, the gears rub against the inner wall of the side plate. Simultaneously, during operation, the gears undergo slight deformation due to insufficient meshing or wear, resulting in loose contact with the inner wall of the side plate and reduced pump efficiency. Therefore, two metal floating plates are respectively installed on both sides of the drive gear. A second metal floating plate is fixed near the outer wall of the side plate of the first metal floating plate. The first metal floating plate is made of wear-resistant metal, such as alloy steel, capable of withstanding the friction between the drive gear and the side plate; while the second metal floating plate is made of metal with good thermal conductivity and flexibility. For example, copper alloys help dissipate the heat generated by friction. At the same time, the combination of metal floating plate one and metal floating plate two allows them to remain tightly fitted to the inner wall of the side plate and the outer wall of the drive gear even after the gear set undergoes slight deformation. This ensures the pump body's sealing performance during operation, improves its operating efficiency, and enhances its overall performance. Furthermore, the base and side plates adopt a CBC all-cast iron integral structure, which improves the pump body's strength, corrosion resistance, and sealing performance. The integral design reduces the number of parts, improves the overall sealing performance of the pump body, and reduces the possibility of liquid leakage. (2) When the gear pump is running, due to its operating principle, the pressure on the inlet side and the outlet side will be different, resulting in a pressure difference. This pressure difference will cause different degrees of deformation on both sides of the metal floating plate. At this time, the different deformations will reduce the fit between the metal floating plate and the driving gear and the driven gear. At the same time, this pressure difference may also cause the metal floating plate to tilt, causing it to jam and reducing its effect on the pump body. At this time, a sealing strip is provided between the metal floating plate and the side plate. When the metal floating plate deforms, This will cause the sealing strip to be subjected to pressure, resulting in deformation. When the sealing strip deforms, it will cause a protruding deformation at the contact point with the metal floating plate. Since the space between the metal floating plate and the sealing strip is limited, the deformation of the metal floating plate will further restrict the deformation of the metal floating plate. At the same time, after the sealing strip deforms, an interference fit is formed between the sealing strip, the side plate, and the metal floating plate, which further increases the sealing performance between the metal floating plate and the driving gear and the driven gear after deformation, thereby enhancing its operating efficiency during pump operation. (3) In this invention, when the driving gear and the driven gear undergo slight deformation, causing the two metal floating plates to change accordingly, the uncertainty of the deformation position and the difference in deformation amount during operation will lead to gaps between the driving gear, the driven gear and the metal floating plates, resulting in liquid leakage during operation and affecting its operating efficiency. At the same time, when the gear pump is running, it will generate high pressure, which will create gaps between the driving gear metal floating plates and the driving gear and the driven gear, causing leakage. At this time, sealing rings are provided at both ends of the teeth of the driving gear and the driven gear. When the gear pump is running, a large pressure will be generated near the outlet. This causes the metal floating plate to deform, and the sealing ring is also subjected to pressure, causing its position to move with the deformation of the metal floating plate. As the sealing ring moves, its lip will remain in contact with the surface of the metal floating plate under pressure. If the pressure increases further, the movable distance of the sealing ring is greater than that of the metal floating plate, which further increases the pressure on the sealing ring. At this time, the sealing ring will move further towards the metal floating plate, and its lip will further contact the metal floating plate, thereby further enhancing the sealing performance during pump operation, improving the volumetric efficiency of the pump, and enhancing its operating efficiency. (4) In this invention, during the operation of the gear pump, the meshing between the driving gear and the driven gear generates pressure to transport the liquid. When the tooth tip of the driving gear gradually enters the tooth valley of the driven gear, a closed volume is formed between the tooth surfaces of the two gears, the side plates, the base, and the front cover. During the meshing process, this closed volume gradually decreases and then gradually increases. Since the liquid is incompressible, when the volume decreases, the pressure inside will increase sharply. When the volume increases, a local vacuum will be formed, causing air to be released from the liquid, resulting in power loss of the pump body and affecting the operating efficiency of the pump body. At this time, the metal plates on both sides... A piston is installed in the pressure relief groove on the floating plate. When the closed volume gradually decreases, the pressure inside increases. This causes the piston to be subjected to pressure, thus moving away from the metal floating plate and compressing the return spring. When the closed volume begins to increase, because there is a certain gap between the piston and the surface of the metal floating plate, when the closed volume reaches the pressure relief groove as it gradually increases, it can communicate with the external liquid, allowing the liquid in the closed volume to be replenished. This reduces the damage to the pump body caused by the closed volume during operation and enhances the pump's operating efficiency. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a cross-sectional view of the overall structure of the present invention; Figure 3 This is a cross-sectional schematic diagram of the support mechanism of the present invention; Figure 4 This is a cross-sectional schematic diagram of the driven component of the present invention; Figure 5 This is a cross-sectional schematic diagram of the floating mechanism of the present invention; Figure 6 For the present invention Figure 5 Enlarged view of point A in the middle; Figure 7 This is a cross-sectional schematic diagram of the sealing assembly of the present invention; Figure 8 For the present invention Figure 7 Enlarged view of point B in the middle; Figure 9 This is a cross-sectional view of the sealing strip of the present invention in its working state; Figure 10 This is a cross-sectional schematic diagram of the pressure relief assembly of the present invention.

[0018] The attached diagram lists the components represented by each number as follows: In the diagram: 1. Support mechanism; 2. Floating mechanism; 3. Pressure relief mechanism; 11. Support assembly; 12. Driven assembly; 13. Base; 14. Side plate; 15. Front cover; 16. Inlet; 21. Floating assembly; 22. Groove assembly; 31. Sealing assembly; 32. Pressure relief assembly; 111. Positioning pin; 112. Skeleton oil seal; 113. Drive gear; 114. Snap ring; 115. Support shaft one; 121. Support shaft two; 122. Driven gear; 123. Metal floating plate one; 211. Metal floating plate two; 212. Outlet; 213. Pressure relief groove; 221. Follower groove; 222. Sealing strip; 223. Support shaft three; 311. Sliding groove; 312. Sealing ring; 321. Piston; 322. O-ring seal; 323. Return spring. Detailed Implementation

[0019] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0020] Example 1, please refer to Figure 1 - Figure 6 This invention relates to a CBC all-cast iron floating bimetallic side-plate gear pump, comprising a base 13, a side plate 14 fixedly connected to the outer wall of the base 13, a front cover 15 fixedly connected to the outer wall of the side plate 14, and an inlet 16 formed on the outer wall of the side plate 14, and further comprising: Support mechanism 1 is fixedly connected to the inner wall of side plate 14 at its outer wall. Support mechanism 1 is used to support the operation of other structures and the operation of components. The floating mechanism 2 is fixedly connected to the outer wall of the support mechanism 1. The floating mechanism 2 is used to assist the gear in fitting with the inner wall of the side plate 14. The pressure relief mechanism 3 is fixedly connected to the inner wall of the floating mechanism 2 at its outer wall. The pressure relief mechanism 3 is used to relieve excessive pressure generated by the gear pump during operation. Two positioning pins 111 are fixedly connected to the inner wall of the side plate 14, and a skeleton oil seal 112 is fixedly connected to the inner wall of the front cover 15.

[0021] Supporting mechanism 1 includes: Support component 11, the outer wall of support component 11 is fixedly connected to the inner wall of skeleton oil seal 112; The driven component 12 is fixedly connected to the inner wall of the front cover 15 at its outer wall.

[0022] The floating mechanism 2 includes: The floating component 21 is fixedly connected to the outer wall of the driven component 12 at its outer wall. The slot assembly 22 is formed on the inner wall of the side plate 14.

[0023] Pressure relief mechanism 3 includes: The sealing assembly 31 is fixedly connected to the outer wall of the support assembly 11. The pressure relief assembly 32 is slidably connected to the inner wall of the floating assembly 21 at its outer wall.

[0024] The support assembly 11 includes a drive gear 113 fixedly connected to the inner wall of the skeleton oil seal 112, a snap ring 114 fixedly connected to the inner wall of the front cover 15, and two support shafts 115 fixedly connected to the outer wall of the drive gear 113. Two support shafts 115 are located at both ends of the drive gear 113. The outer wall of one support shaft 115 is fixedly connected to the inner wall of the base 13; the outer wall of the other support shaft 115 is fixedly connected to the inner wall of the front cover 15.

[0025] When in use, first place the device in the appropriate position, and connect the inlet 16 to the delivery pipe of the liquid to be delivered. At the same time, connect the drive shaft of the drive motor to the drive gear 113. When liquid needs to be delivered, start the drive motor so that the motor drives the drive gear 113 to start rotating. The driven component 12 includes a second support shaft 121 fixedly connected to the inner wall of the front cover 15. A driven gear 122 is fixedly connected to the inner wall of the second support shaft 121. Two metal floating plates 123 are fixedly connected to the inner wall of the side plate 14. The two metal floating plates 123 are located at both ends of the side plate 14.

[0026] During operation, the gears rub against the inner wall of the side plate 14. At the same time, the gears undergo slight deformation due to insufficient meshing or wear, resulting in loose contact with the inner wall of the side plate 14. This reduces the efficiency of the pump during operation. To address this, two metal floating plates 123 are provided on both sides of the drive gear 113. A second metal floating plate 211 is fixed near the outer wall of the side plate 14. The metal floating plates 123 are made of wear-resistant metal, such as alloy steel, which can withstand the friction between the drive gear 113 and the side plate 14. The floating assembly 21 includes two metal floating plates 211 fixedly connected to the outer walls of two metal floating plates 123. An outlet 212 is provided on the outer wall of the side plate 14 at the end away from the inlet 16. Several pressure relief grooves 213 are provided on the outer walls of the two metal floating plates 123, and the pressure relief grooves 213 are in pairs.

[0027] The second metal floating plate 211 uses a metal with good thermal conductivity and flexibility, such as copper alloy, which helps to dissipate the heat generated by friction. At the same time, the combination of the first metal floating plate 123 and the second metal floating plate 211 allows them to remain tightly fitted to the inner wall of the side plate 14 and the outer wall of the drive gear 113 even after the gear set undergoes slight deformation, thus ensuring the sealing of the pump body during operation, improving its operating efficiency and performance. Meanwhile, the base 13 and the side plate 14 adopt a CBC all-cast iron integral structure, which improves the strength, corrosion resistance and sealing of the pump body. The integral design reduces the number of parts, improves the overall sealing of the pump body and reduces the possibility of liquid leakage. Example 2, please refer to Figure 2 - Figure 10 The present invention is a CBC all-cast iron floating bimetallic side plate gear pump. Based on Example 1, the slot assembly 22 includes two follower slots 221 opened on the inner wall of the side plate 14. Two sealing strips 222 are fixedly connected to the inner wall of the two follower slots 221. A support shaft 3 223 is fixedly connected to the outer wall of the passive gear 122 away from the support shaft 2 121. When the gear pump is running, its operating principle causes a pressure difference between the inlet 16 and outlet 212 sides, resulting in a pressure differential. This pressure difference causes varying degrees of deformation on both sides of the metal floating plate 123. This deformation reduces the fit between the metal floating plate 123 and the driving gear 113 and driven gear 122. Simultaneously, this pressure difference may also cause the metal floating plate 123 to tilt, causing it to jam and reducing its effect on the pump body. A sealing strip 222 is installed between the metal floating plate 123 and the side plate 14. When the metal floating plate 123 deforms, the sealing strip... 222 will also be subjected to pressure, thus deforming. When the sealing strip 222 deforms, it will cause a protruding deformation at the position in contact with the metal floating plate 123. Since the space between the metal floating plate 123 and the sealing strip 222 is limited, the deformation of the sealing strip 222 will further limit the deformation of the metal floating plate 123. At the same time, after the sealing strip 222 deforms, an interference fit is formed between the sealing strip 222 and the side plate 14 and the metal floating plate 123, thereby further increasing the sealing performance between the metal floating plate 123 and the drive gear 113 and the driven gear 122 after deformation, thereby enhancing its operating efficiency during pump operation. The outer wall of the support shaft 223 is fixedly connected to the inner wall of the base 13.

[0028] The sealing assembly 31 includes two sliding grooves 311 formed on the outer walls of both ends of the drive gear 113, and two sealing rings 312 are slidably connected to the inner walls of the two sliding grooves 311.

[0029] When the driving gear 113 and driven gear 122 undergo slight deformation, causing the two metal floating plates 123 to change accordingly, gaps will form between the driving gear 113, driven gear 122, and metal floating plates 123 due to the uncertainty of the deformation position and the difference in deformation amount during operation. This will lead to liquid leakage during operation, affecting its operating efficiency. At the same time, the gear pump generates high pressure during operation, which will also cause gaps between the driving gear metal floating plates 123 and the driving gear 113 and driven gear 122, resulting in leakage. At this time, sealing rings 312 are provided at both ends of the teeth of the driving gear 113 and driven gear 122. When the gear pump is running, a large pressure will be generated near the outlet 212. This causes the metal floating plate 123 to deform, and the sealing ring 312 is also subjected to pressure, causing its position to move with the deformation of the metal floating plate 123. At the same time, after the sealing ring 312 moves, its lip will always be in contact with the surface of the metal floating plate 123 under the action of pressure. Furthermore, if the pressure increases further, the movable distance of the sealing ring 312 is greater than that of the metal floating plate 123, thereby further increasing the pressure on the sealing ring 312. At this time, the sealing ring 312 will move further towards the metal floating plate 123, and its lip will further contact the metal floating plate 123, thereby further enhancing the sealing performance during pump operation, improving the volumetric efficiency of the pump, and enhancing its operating efficiency. The pressure relief assembly 32 includes several pistons 321 that are slidably connected to the inner walls of several pressure relief grooves 213, several O-rings 322 that are fixedly connected to the outer walls of several pistons 321, and several return springs 323 that are sleeved on the outer walls of several pistons 321.

[0030] During operation of the gear pump, the meshing of the driving gear 113 and the driven gear 122 generates pressure to transport the liquid. As the tooth tip of the driving gear 113 gradually enters the tooth groove of the driven gear 122, a closed volume is formed between the tooth surfaces of the two gears, the side plate 14, the base 13, and the front cover 15. During meshing, this closed volume gradually decreases and then gradually increases. Since liquid is incompressible, when the volume decreases, the pressure inside increases sharply; when the volume increases, a partial vacuum is formed, causing air to be released from the liquid, resulting in power loss in the pump and affecting its operating efficiency. At this time, the metal floating plates 123 on both sides... A piston 321 is installed in the pressure relief groove 213. When the closed volume gradually decreases, the pressure inside increases. This causes the piston 321 to be subjected to pressure, thus moving away from the metal floating plate 123 and compressing the return spring 323. When the closed volume begins to increase, since there is a certain gap between the piston 321 and the surface of the metal floating plate 123, when the closed volume reaches the pressure relief groove 213 during the gradual increase, it can communicate with the external liquid, so that the liquid in the closed volume can be replenished, thereby reducing the damage to the pump body caused by the closed volume during operation and enhancing the pump's operating efficiency.

[0031] A specific application of this embodiment is as follows: When in use, first place the device in the desired position, and at the same time, connect the inlet 16 to the delivery pipe for the liquid to be delivered, and connect the drive shaft of the drive motor to the drive gear 113. When liquid needs to be delivered, start the drive motor so that the motor drives the drive gear 113 to start rotating. During operation, the gears rub against the inner wall of the side plate 14. Additionally, due to insufficient meshing or wear, the gears undergo slight deformation, resulting in loose contact with the inner wall of the side plate 14 and reduced pump efficiency. To address this, two metal floating plates 123 are installed on either side of the drive gear 113. A second metal floating plate 211 is fixed to the outer wall of the side plate 14 near the first metal floating plate 123. The first metal floating plate 123 is made of wear-resistant metal, such as alloy steel, to withstand the friction between the drive gear 113 and the side plate 14. The second metal floating plate 211 is made of metal with good thermal conductivity and flexibility. For example, copper alloys help dissipate the heat generated by friction. At the same time, the combination of metal floating plate 123 and metal floating plate 211 allows them to remain tightly fitted to the inner wall of side plate 14 and the outer wall of drive gear 113 even after slight deformation of the gear set, thus ensuring the sealing of the pump body during operation, improving its operating efficiency and performance. Meanwhile, the base 13 and side plate 14 adopt a CBC all-cast iron integral structure, which improves the strength, corrosion resistance and sealing of the pump body. The integral design reduces the number of parts, improves the overall sealing of the pump body and reduces the possibility of liquid leakage. When the gear pump is running, its operating principle causes a pressure difference between the inlet 16 and outlet 212 sides, resulting in a pressure differential. This pressure difference causes varying degrees of deformation on both sides of the metal floating plate 123. This deformation reduces the fit between the metal floating plate 123 and the driving gear 113 and driven gear 122. Simultaneously, this pressure difference may also cause the metal floating plate 123 to tilt, causing it to jam and reducing its effect on the pump body. A sealing strip 222 is installed between the metal floating plate 123 and the side plate 14. When the metal floating plate 123 deforms, the sealing strip... 222 will also be subjected to pressure, thus deforming. When the sealing strip 222 deforms, it will cause a protruding deformation at the position in contact with the metal floating plate 123. Since the space between the metal floating plate 123 and the sealing strip 222 is limited, the deformation of the sealing strip 222 will further limit the deformation of the metal floating plate 123. At the same time, after the sealing strip 222 deforms, an interference fit is formed between the sealing strip 222 and the side plate 14 and the metal floating plate 123, thereby further increasing the sealing performance between the metal floating plate 123 and the drive gear 113 and the driven gear 122 after deformation, thereby enhancing its operating efficiency during pump operation. When the driving gear 113 and driven gear 122 undergo slight deformation, causing the two metal floating plates 123 to change accordingly, gaps will form between the driving gear 113, driven gear 122, and metal floating plates 123 due to the uncertainty of the deformation position and the difference in deformation amount during operation. This will lead to liquid leakage during operation, affecting its operating efficiency. At the same time, the gear pump generates high pressure during operation, which will also cause gaps between the driving gear metal floating plates 123 and the driving gear 113 and driven gear 122, resulting in leakage. At this time, sealing rings 312 are provided at both ends of the teeth of the driving gear 113 and driven gear 122. When the gear pump is running, a large pressure will be generated near the outlet 212. This causes the metal floating plate 123 to deform, and the sealing ring 312 is also subjected to pressure, causing its position to move with the deformation of the metal floating plate 123. At the same time, after the sealing ring 312 moves, its lip will always be in contact with the surface of the metal floating plate 123 under the action of pressure. Furthermore, if the pressure increases further, the movable distance of the sealing ring 312 is greater than that of the metal floating plate 123, thereby further increasing the pressure on the sealing ring 312. At this time, the sealing ring 312 will move further towards the metal floating plate 123, and its lip will further contact the metal floating plate 123, thereby further enhancing the sealing performance during pump operation, improving the volumetric efficiency of the pump, and enhancing its operating efficiency. During operation of the gear pump, the meshing of the driving gear 113 and the driven gear 122 generates pressure to transport the liquid. As the tooth tip of the driving gear 113 gradually enters the tooth groove of the driven gear 122, a closed volume is formed between the tooth surfaces of the two gears, the side plate 14, the base 13, and the front cover 15. During meshing, this closed volume gradually decreases and then gradually increases. Since liquid is incompressible, when the volume decreases, the pressure inside increases sharply; when the volume increases, a partial vacuum is formed, causing air to be released from the liquid, resulting in power loss in the pump and affecting its operating efficiency. At this time, the metal floating plates 123 on both sides... A piston 321 is installed in the pressure relief groove 213. When the closed volume gradually decreases, the pressure inside increases. This causes the piston 321 to be subjected to pressure, thus moving away from the metal floating plate 123 and compressing the return spring 323. When the closed volume begins to increase, since there is a certain gap between the piston 321 and the surface of the metal floating plate 123, when the closed volume reaches the pressure relief groove 213 during the gradual increase, it can communicate with the external liquid, so that the liquid in the closed volume can be replenished, thereby reducing the damage to the pump body caused by the closed volume during operation and enhancing the pump's operating efficiency.

[0032] The preferred embodiments of the present invention disclosed above are merely illustrative of the invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the invention to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the invention, thereby enabling those skilled in the art to better understand and utilize the invention. The invention is limited only by the claims and their full scope and equivalents.

Claims

1. A CBC all-cast iron floating bimetallic side-plate gear pump, comprising a base (13), a side plate (14) fixedly connected to the outer wall of the base (13), a front cover (15) fixedly connected to the outer wall of the side plate (14), and an inlet (16) provided on the outer wall of the side plate (14), characterized in that, Also includes: The support mechanism (1) is fixedly connected to the inner wall of the side plate (14) at its outer wall. The support mechanism (1) is used to support the operation of other structures and the operation of components. The floating mechanism (2) is fixedly connected to the outer wall of the support mechanism (1) at its outer wall. The floating mechanism (2) is used to assist the gear in fitting with the inner wall of the side plate (14). The pressure relief mechanism (3) is fixedly connected to the inner wall of the floating mechanism (2) at its outer wall. The pressure relief mechanism (3) is used to relieve the excessive pressure generated by the gear pump during operation. Two positioning pins (111) are fixedly connected to the inner wall of the side plate (14), and a skeleton oil seal (112) is fixedly connected to the inner wall of the front cover (15). The support mechanism (1) includes: Support assembly (11), the outer wall of which is fixedly connected to the inner wall of skeleton oil seal (112); Driven assembly (12), the outer wall of the driven assembly (12) is fixedly connected to the inner wall of the front cover (15); The floating mechanism (2) includes: A floating component (21) is fixedly connected at its outer wall to the outer wall of the driven component (12); The slot assembly (22) is formed on the inner wall of the side plate (14); The pressure relief mechanism (3) includes: A sealing assembly (31) is fixedly connected to the outer wall of a support assembly (11); The pressure relief assembly (32) is slidably connected at its outer wall to the inner wall of the floating assembly (21); The driven component (12) includes a second support shaft (121) fixedly connected to the inner wall of the front cover (15), a driven gear (122) fixedly connected to the inner wall of the second support shaft (121), and two metal floating plates (123) fixedly connected to the inner wall of the side plate (14), with the two metal floating plates (123) located at the two ends of the side plate (14) respectively. The floating assembly (21) includes two metal floating plates (211) fixedly connected to the outer walls of two metal floating plates (123). The side plate (14) has an outlet (212) on its outer wall away from the inlet (16). Several pressure relief grooves (213) are provided on the outer walls of the two metal floating plates (123), and the pressure relief grooves (213) are in pairs. The pressure relief assembly (32) includes a plurality of pistons (321) slidably connected to the inner wall of a plurality of pressure relief grooves (213), a plurality of O-rings (322) fixedly connected to the outer wall of the plurality of pistons (321), and a plurality of return springs (323) sleeved on the outer wall of the plurality of pistons (321).

2. The CBC all-cast iron floating bimetallic side-plate gear pump according to claim 1, characterized in that: The support assembly (11) includes a drive gear (113) fixedly connected to the inner wall of the skeleton oil seal (112), a snap ring (114) fixedly connected to the inner wall of the front cover (15), and two support shafts (115) fixedly connected to the outer wall of the drive gear (113). The two support shafts (115) are located at both ends of the drive gear (113). The outer wall of one of the support shafts (115) is fixedly connected to the inner wall of the base (13); the outer wall of the other support shaft (115) is fixedly connected to the inner wall of the front cover (15).

3. The CBC all-cast iron floating bimetallic side-plate gear pump according to claim 2, characterized in that: The slot assembly (22) includes two follower slots (221) opened on the inner wall of the side plate (14), and two sealing strips (222) are fixedly connected to the inner wall of the two follower slots (221). A support shaft (223) is fixedly connected to the outer wall of the passive gear (122) away from the support shaft two (121). The outer wall of the support shaft three (223) is fixedly connected to the inner wall of the base (13).

4. The CBC all-cast iron floating bimetallic side-plate gear pump according to claim 3, characterized in that: The sealing assembly (31) includes two sliding grooves (311) formed on the outer walls at both ends of the drive gear (113), and two sealing rings (312) are slidably connected to the inner walls of the two sliding grooves (311).

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