Wear-resistant hydraulic pusher

Abstract

The utility model discloses a wear-resistant hydraulic pusher which comprises a hydraulic cylinder, a rack, a pushing block and two guide rods, the hydraulic cylinder is arranged on the rack, the hydraulic cylinder is in transmission connection with the pushing block, the guide rods are arranged on the side, close to the hydraulic cylinder, of the pushing block in parallel, and the wear-resistant hydraulic pusher further comprises a guide frame and a lubricating assembly; the guide frame is provided with two mounting holes allowing the guide rods to penetrate through, the two lubricating assemblies are arranged on the guide frame and correspond to the two guide rods in a one-to-one mode, each lubricating assembly comprises an oil cup and a mounting ring, the oil cups are connected to the guide frame, the guide frame is provided with lubricating hole channels communicated with inner cavities of the oil cups, and the lubricating hole channels are communicated with the mounting rings. The mounting ring is inserted into the mounting hole, the mounting ring and the guide rod are arranged in a sliding mode, and a communicating hole channel communicating with the lubricating hole channel is formed in the mounting ring in the wall thickness direction of the mounting ring. The hydraulic pusher has the effects of improving the overall performance and prolonging the service life of the hydraulic pusher.

Description

Technical Field

[0001] The present application relates to the technical field of steel pushing devices, and in particular to a wear-resistant hydraulic steel pushing machine. Background Art

[0002] A pusher is a driving device used in steel rolling production lines to push steel billets into a heating furnace for heating or to push steel bars. Conventional hydraulic pushers typically consist of a pusher block and a hydraulic cylinder that drives it. To ensure stable operation of the pusher block, a guide rod parallel to the hydraulic cylinder's output shaft is typically installed on the pusher block to limit and guide the block.

[0003] Conventional guide rods are typically made of solid metal. While these rods offer high strength, they are susceptible to wear and deformation after prolonged operation. Furthermore, conventional lubrication methods are inadequate, potentially leading to uneven lubrication across the guide rod surface. This increases friction between the guide rod and the frame, impacting the pusher's operation and service life. Utility Model Content

[0004] In order to improve the overall performance and service life of the hydraulic pusher, the present application provides a wear-resistant hydraulic pusher.

[0005] The wear-resistant hydraulic pusher provided in this application adopts the following technical solution:

[0006] A wear-resistant hydraulic pusher comprises a hydraulic cylinder, a frame, a push block and a guide rod, the hydraulic cylinder is arranged on the frame, the hydraulic cylinder is transmission-connected to the push block, the guide rods are arranged in parallel on the side of the push block close to the hydraulic cylinder, and also includes a guide frame and a lubrication assembly, the guide frame is provided with two mounting holes for the guide rods to pass through, two lubrication assemblies are provided on the guide frame, two groups of lubrication assemblies are arranged in one-to-one correspondence with the two guide rods, the lubrication assembly comprises an oil cup and a mounting ring, the oil cup is connected to the guide frame, the guide frame is provided with a lubrication channel connected to the inner cavity of the oil cup, the mounting ring is inserted in the mounting hole, the mounting ring and the guide rod are slidably arranged, and the mounting ring is provided with a connecting channel connected to the lubrication channel along its wall thickness direction.

[0007] By adopting this technical solution, lubricating oil is filled into the oil cup, flowing along the lubrication and connecting channels and contacting the guide rods, thereby lubricating the guide rods and reducing the possibility of friction damage to the guide rods. The interaction between the hydraulic cylinder, frame, push block, guide rods, guide frame, and lubrication assembly improves the overall performance and service life of the hydraulic pusher.

[0008] Optionally, the inner diameter of the mounting ring is larger than the outer diameter of the guide rod, and a copper sleeve is inserted at both opposite ends of the mounting ring. The inner ring wall of the copper sleeve fits with the outer ring wall of the guide rod, and the outer ring wall of the copper sleeve fits with the inner ring wall of the mounting ring. The ends of the two copper sleeves are spaced apart, and the ends of the two copper sleeves, the guide rod and the mounting ring together form a lubrication ring cavity, and the lubrication ring cavity is connected to the connecting channel.

[0009] By adopting the above technical solution, the two copper sleeves are arranged on the circumference of the guide rod to form a lubricating ring cavity, which increases the contact area between the lubricating oil and the guide rod and helps to improve the lubrication quality of the device on the guide rod.

[0010] Optionally, a plurality of oil grooves are provided on the inner peripheral wall of the copper sleeve along the central axis thereof, and one end of the oil groove in the length direction is connected to the lubrication ring cavity.

[0011] By adopting the above technical solution, the provision of the oil groove increases the contact area between the lubricating oil and the guide rod, which helps to improve the lubrication efficiency and quality of the guide rod.

[0012] Optionally, one end of the copper sleeve extends out of the mounting ring and is connected to a connecting end plate, the connecting end plate is connected to the end of the mounting ring, a sealing ring groove is circumferentially provided on the inner ring wall of the end of the copper sleeve extending out of the mounting ring, an oil seal is provided in the sealing ring groove, and the oil seal is fitted against the guide rod.

[0013] By adopting the above technical solution, the provision of the oil seal realizes the sealing of the oil groove and the lubricating ring cavity, reducing the possibility of direct leakage of the lubricating oil therein.

[0014] Optionally, two guide frames are arranged in parallel on the frame, and each guide frame is provided with two groups of lubrication components, and the two groups of lubrication components on the same guide frame are arranged in a one-to-one correspondence with the two guide rods.

[0015] By adopting the above technical solution, the arrangement of two sets of guide frames realizes double lubrication of the same guide rod, extends the effective lubrication length of the guide rod, and improves the lubrication quality of the guide rod.

[0016] Optionally, a chrome-plated layer is provided on the outer wall of the guide rod.

[0017] By adopting the above technical solution, the provision of the chrome plating layer helps to improve the surface wear resistance of the guide rod and helps to extend the service life of the guide rod.

[0018] Optionally, the guide rod is configured in a hollow tubular shape, a support plate is connected to the guide rod along its length direction, and both sides of the support plate in the width direction are connected to the inner ring wall of the guide rod.

[0019] By adopting the above technical solution, the hollow guide rod and the support plate arranged in the guide rod improve the radial bearing capacity of the guide rod and reduce the possibility of the guide rod being damaged and deformed during the steel pushing process.

[0020] Optionally, an alignment block is connected to the outer ring wall at one end of the mounting ring, an alignment hole is provided on the alignment block, and an alignment screw is connected to one side of the guide frame. When the mounting ring is inserted into the mounting hole and the alignment screw is inserted into the alignment hole, the connecting channel is connected to the lubrication channel.

[0021] By adopting the above technical solution, the alignment screw is inserted into the alignment hole of the alignment block, thereby achieving precise alignment of the lubrication channel and the connecting channel.

[0022] In summary, this application includes at least one of the following beneficial technical effects:

[0023] 1. The coordination of the hydraulic cylinder, frame, push block, guide rod, guide frame and lubrication components can improve the overall performance and service life of the hydraulic pusher.

[0024] 2. The setting of chrome plating layer helps to improve the surface wear resistance of the guide rod and helps to extend the service life of the guide rod;

[0025] 3. The alignment screw is inserted into the alignment hole of the alignment block to achieve precise alignment of the lubrication channel and the connecting channel. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a structural schematic diagram of an embodiment of the present application used to embody a wear-resistant hydraulic pusher.

[0027] Figure 2 It is a partial cross-sectional view used to illustrate the internal structure of the guide rod in the embodiment of the present application.

[0028] Figure 3 yes Figure 2 Enlarged view of part A in the middle.

[0029] Figure 4 It is a schematic diagram of the structure of the copper sleeve in the embodiment of the present application.

[0030] Explanation of the accompanying drawings: 1. Push block; 2. Hydraulic cylinder; 3. Guide rod; 31. Plug-in rod section; 32. Intermediate rod section; 33. Guide rod section; 34. Support plate; 4. Lubrication assembly; 41. Oil cup; 42. Oil seal; 43. Mounting ring; 431. Connecting channel; 44. Alignment screw; 45. Locking bolt; 46. Copper sleeve; 461. Oil groove; 462. Sealing ring groove; 47. Fixed ring plate; 5. Frame; 6. Guide frame; 61. Mounting hole; 62. Lubrication channel; 7. Connecting block; 71. Plug-in hole; 8. Alignment block; 9. Connecting end plate; 10. Lubrication ring cavity; 11. Chrome plating layer. DETAILED DESCRIPTION

[0031] The following is combined with Figure 1-4 The present application is further described in detail. The embodiment of the present application provides a wear-resistant hydraulic pusher, which has the effect of improving the overall performance and service life of the hydraulic pusher.

[0032] Reference Figure 1 and Figure 2 A wear-resistant hydraulic pusher includes a push block 1, a hydraulic cylinder 2, a guide rod 3, a lubrication assembly 4, a frame 5 and a guide frame 6. The hydraulic cylinder 2 is arranged on the top surface of the frame 5, and the output shaft of the hydraulic cylinder 2 is connected to the push block 1. Two connecting blocks 7 are connected to the side of the push block 1 close to the hydraulic cylinder 2, and the connecting block 7 is provided with a plug-in hole 71. Two guide rods 3 are arranged parallel to the output shaft direction of the hydraulic cylinder 2, and the two guide rods 3 are arranged one-to-one corresponding to the two connecting blocks 7. The guide rod 3 is hollow and includes a plug-in rod section 31, an intermediate rod section 32 and a guide rod 3 section arranged in sequence. The outer diameter of the intermediate rod section 32 is larger than the outer diameter of the plug-in rod section 31 and the guide rod 3 section. The outside of the guide rod 3 section is provided with a chrome plating layer 11. Two support plates 34 are provided inside the guide rod 3 along its length direction, and both sides of the support plate 34 in the width direction are connected to the inner wall of the guide rod 3. The plug-in rod section 31 is inserted into the plug-in hole 71 of the connecting block 7 , and a bolt for fixing the plug-in rod section 31 is threadedly connected to the connecting block 7 .

[0033] Reference Figure 2 and Figure 3There are two guide frames 6 vertically connected to the top surface of the frame 5 in a direction perpendicular to the guide rods 3. Each guide frame 6 is provided with two mounting holes 61, and the two mounting holes 61 are arranged one-to-one with the two guide rods 3. Two groups of lubrication components 4 are provided on each guide frame 6, and the two groups of lubrication components 4 are arranged one-to-one with the two mounting holes 61. The lubrication component 4 includes an oil cup 41, a lubrication channel 62, a mounting ring 43, an alignment screw 44, a locking bolt 45, a copper sleeve 46, a fixing ring plate 47 and an oil seal 42. The oil cup 41 is connected to the guide frame 6, and an oil outlet is provided at the bottom end of the oil cup 41. A lubrication channel 62 is provided on the guide frame 6, one end of the lubrication channel 62 is connected to the oil outlet, and the other end is connected to the mounting hole 61. The mounting ring 43 is inserted into the mounting hole 61, and the outer diameter of the mounting ring 43 is equal to the inner diameter of the mounting hole 61, and the length of the mounting ring 43 is greater than the thickness of the guide frame 6. An alignment block 8 is connected to the outer wall of one end of the mounting ring 43, and an alignment hole is defined in the alignment block 8. An alignment screw 44 is fixedly connected to one side of the guide frame 6 and inserted into the alignment hole of the alignment block 8. The end of the alignment screw 44 extends beyond the alignment block 8 and is threadedly connected to a locking bolt 45. A connecting hole 431 is defined along the thickness of the mounting ring 43, communicating with the lubrication hole 62.

[0034] Reference Figure 3 and Figure 4 Two copper sleeves 46 are provided in each lubrication assembly 4. An annular connecting end plate 9 is connected to the outer ring wall of one end of the copper sleeve 46. The two copper sleeves 46 are inserted into opposite ends of the mounting ring 43. The outer ring wall of the copper sleeve 46 is aligned with the inner ring wall of the mounting ring 43. The ends of the two copper sleeves 46 are spaced apart. The connecting end plate 9 is aligned with the end of the mounting ring 43 and bolted together. The two copper sleeves 46, the guide rod 3, and the mounting ring 43 together form an annular lubrication ring cavity 10. The lubrication ring cavity 10 is connected to the connecting channel 431. The inner ring wall of the copper sleeve 46 is provided with a plurality of oil grooves 461 at equal intervals along its circumference. One end of each oil groove 461 is connected to the lubrication ring cavity 10.

[0035] Reference Figure 3 and Figure 4 A sealing ring groove 462 is circumferentially defined on the inner ring walls of the two copper sleeves 46 at the ends facing away from each other. The sealing ring groove 462 communicates with one end of the oil groove 461. The oil seal 42 is annular and coaxially connected to one side of a stationary ring plate 47. The stationary ring plate 47 is bolted to one end of the mounting ring 43 in the longitudinal direction. The oil seal 42 is embedded in the sealing ring groove 462 and is positioned in close contact with the guide rod 3.

[0036] Reference Figure 2-4, the guide rod 3 slides back and forth on the guide frame 6 along with the push block 1, and the oil cup 41 is filled with lubricating oil. The lubricating oil seeps into the lubricating ring cavity 10 along the lubricating channel 62 and the connecting channel 431, lubricating the surface of the guide rod 3. As the guide rod 3 slides back and forth, the lubricating oil in the lubricating ring cavity 10 enters the several oil grooves 461 along with the guide rod 3, thereby improving the lubrication efficiency and lubrication area of the guide rod 3. The setting of the oil seal 42 realizes the sealing of the oil groove 461 and the lubricating ring cavity 10, reducing the possibility of direct leakage of lubricating oil. The several groups of lubrication components 4 on the two groups of guide frames 6 lubricate the guide rod 3 at the same time, which helps to extend the lubrication length of the guide rod 3 and also improves the movement stability of the guide rod 3.

[0037] Reference Figure 3 The alignment block 8 is connected to the guide frame 6 via an alignment screw 44 and a locking bolt 45, ensuring precise alignment of the lubrication channel 62 with the communication channel 431. The guide rod 3 is designed as a hollow tube with support plates 34 positioned along its length, which helps improve the axial bearing capacity of the guide rod 3 and reduces the possibility of deformation and bending. The chrome plating 11 on the exterior of the guide rod 3 further improves the wear resistance of the outer wall of the guide rod 3 and extends the service life of the device.

[0038] The wear-resistant hydraulic pusher according to the present embodiment is implemented as follows: the guide rod 3 slides back and forth on the guide frame 6, and the lubricating oil in the oil cup 41 flows along the lubrication channel 62 and the connecting channel 431 into the lubrication ring cavity 10 and the oil groove 461, thereby lubricating the surface of the guide rod 3. Multiple sets of lubrication assemblies 4 on the two sets of guide frames 6 lubricate the guide rod 3 simultaneously, which helps to extend the lubrication distance of the guide rod 3. Because the guide rod 3 is configured as a hollow tube with a support plate 34 disposed therein, the axial bearing capacity of the guide rod 3 is improved.

[0039] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A wear-resistant hydraulic steel pusher, comprising a hydraulic cylinder (2), a frame (5), a push block (1) and a guide rod (3), wherein the hydraulic cylinder (2) is arranged on the frame (5), the hydraulic cylinder (2) is transmission-connected to the push block (1), and two guide rods (3) are arranged in parallel on one side of the push block (1) close to the hydraulic cylinder (2), characterized in that: The invention also includes a guide frame (6) and a lubricating assembly (4), wherein the guide frame (6) is provided with two mounting holes (61) for the guide rods (3) to pass through, and two lubricating assemblies (4) are provided on the guide frame (6), and two groups of the lubricating assemblies (4) are provided in a one-to-one correspondence with the two guide rods (3). The lubricating assembly (4) includes an oil cup (41) and a mounting ring (43), wherein the oil cup (41) is connected to the guide frame (6), and the guide frame (6) is provided with a lubricating channel (62) connected to the inner cavity of the oil cup (41), and the mounting ring (43) is inserted into the mounting hole (61), and the mounting ring (43) is slidably provided with the guide rods (3), and the mounting ring (43) is provided with a connecting channel (431) connected to the lubricating channel (62) along the wall thickness direction.

2. The wear-resistant hydraulic pusher according to claim 1, characterized in that: The inner diameter of the mounting ring (43) is larger than the outer diameter of the guide rod (3). A copper sleeve (46) is inserted at each of the opposite ends of the mounting ring (43). The inner ring wall of the copper sleeve (46) fits with the outer ring wall of the guide rod (3). The outer ring wall of the copper sleeve (46) fits with the inner ring wall of the mounting ring (43). The ends of the two copper sleeves (46) are spaced apart. The ends of the two copper sleeves (46), the guide rod (3) and the mounting ring (43) together form a lubricating ring cavity (10). The lubricating ring cavity (10) is connected to the communicating channel (431).

3. The wear-resistant hydraulic pusher according to claim 2, characterized in that: A plurality of oil grooves (461) are provided on the inner peripheral wall of the copper sleeve (46) along its central axis, and one end of the oil groove (461) in the longitudinal direction is connected to the lubricating ring cavity (10).

4. The wear-resistant hydraulic pusher according to claim 3, characterized in that: One end of the copper sleeve (46) extends out of the mounting ring (43) and is connected to a connecting end plate (9). The connecting end plate (9) is connected to the end of the mounting ring (43). A sealing ring groove (462) is circumferentially provided on the inner ring wall of the end of the copper sleeve (46) extending out of the mounting ring (43). An oil seal (42) is provided in the sealing ring groove (462). The oil seal (42) is fitted to the guide rod (3).

5. The wear-resistant hydraulic pusher according to claim 2, characterized in that: Two guide frames (6) are arranged in parallel on the frame (5), and each guide frame (6) is provided with two groups of lubrication components (4). The two groups of lubrication components (4) on the same guide frame (6) are arranged in a one-to-one correspondence with the two guide rods (3).

6. The wear-resistant hydraulic pusher according to claim 1, characterized in that: A chrome plating layer (11) is provided on the outer wall of the guide rod (3).

7. The wear-resistant hydraulic pusher according to claim 1, characterized in that: The guide rod (3) is arranged in a hollow tube shape, and a support plate (34) is connected to the guide rod (3) along its length direction, and both sides of the support plate (34) in the width direction are connected to the inner ring wall of the guide rod (3).

8. The wear-resistant hydraulic pusher according to claim 1, characterized in that: An alignment block (8) is connected to the outer ring wall at one end of the mounting ring (43), and an alignment hole is provided on the alignment block (8). An alignment screw (44) is connected to one side of the guide frame (6). When the mounting ring (43) is inserted into the mounting hole (61) and the alignment screw (44) is inserted into the alignment hole, the communication channel (431) is connected to the lubrication channel (62).

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