Hydraulic machine for assembling bearings

Abstract

The application relates to the technical field of bearing assembly hydraulic machines, and discloses a bearing assembly hydraulic machine, which comprises a hydraulic machine base, the top of the hydraulic machine base is provided with a top mounting seat at the front end, the top of the top mounting seat is provided with a hydraulic oil cylinder, and the output end of the hydraulic oil cylinder is provided with a hydraulic rod penetrating through the top mounting seat; the hydraulic rod drives the hinged plate C and the hinged plate D to fold and displace, then the hinged plate D drives the hinged plate A to fold and unfold, then the hinged plate A drives the hinged plate B to displace, then the upper pressing plate at the bottom of the supporting base is driven to displace up and down, the length combination structure among the hinged plate C, the hinged plate D, the hinged plate A and the hinged plate B realizes long-stroke pushing under the short-stroke state of the hinged plate A, the stroke distance of the hydraulic rod in the bearing assembly process is shortened, and the working efficiency of the hydraulic rod is improved.

Description

Technical Field

[0001] This invention relates to the field of bearing assembly hydraulic press technology, specifically a bearing assembly hydraulic press. Background Technology

[0002] In existing bearing assembly processes, hydraulic presses are typically used for assembly. The working pressure of the hydraulic press is greater than the pressing force generated by the interference fit between the shaft and the inner ring, thereby pressing the bearing into the inner ring and completing the assembly.

[0003] Existing hydraulic presses used for bearing assembly typically employ a C-type hydraulic press structure. This structure features a hydraulic cylinder at the top, controlled by an external hydraulic oil control system. While this structure is relatively mature, the piston rod at the cylinder's output end is usually length-adapted to meet specific needs. Under normal circumstances, a longer piston rod results in a longer reciprocating cycle for the hydraulic cylinder, leading to reduced efficiency. Furthermore, it requires a larger supply of hydraulic oil from the hydraulic pump. Therefore, a new type of hydraulic press structure is needed to shorten the stroke time and improve efficiency. Additionally, different bearing assembly processes, varying assembly positions, and different bearing specifications result in different required output stroke distances, necessitating a hydraulic press structure capable of adjusting the stroke distance. Summary of the Invention

[0004] The purpose of this invention is to provide a hydraulic press for bearing assembly, in order to solve the problem mentioned in the background art that the piston rod of the existing hydraulic press used in the bearing assembly process is too long, resulting in a long stroke cycle and thus affecting the work efficiency.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a hydraulic press base, a top mounting seat is provided at one end of the front of the top of the hydraulic press base, a hydraulic cylinder is provided at the top of the top mounting seat, a hydraulic rod is provided at the output end of the hydraulic cylinder and passes through the top mounting seat, a control base is provided in the middle of the top of the hydraulic press base, a worktable is provided on the top of the control base, protective plates are symmetrically provided on both sides of the control base, a mounting top plate is provided in the middle of the bottom of the top mounting seat, hinge frame mechanisms are symmetrically provided on both sides of the bottom of the mounting top plate, the hinge frame mechanisms are used to extend the stroke of the hydraulic rod, an upper pressure plate is provided at the bottom of the hinge frame mechanisms, and a height adjustment mechanism is provided on the top of the upper pressure plate, the height adjustment mechanism is used to adjust the distance between the upper pressure plate and the worktable.

[0006] Preferably, the articulated frame mechanism includes two sets of fixed top seats fixed to both sides of the bottom of the top mounting base. A hinge shaft A is provided through both ends of the bottom of the two sets of fixed top seats. Three sets of hinge plates A are hinged to the outer side of the hinge shaft A, and the three sets of hinge plates A are spaced between the two sets of fixed top seats. A hinge shaft D is provided through the bottom of the three sets of hinge plates A. Two sets of hinge plates B are provided outside the hinge shaft D at a position between the three sets of hinge plates A. The bottom of the two sets of hinge plates B is connected to the hinge shaft B. The middle of the three sets of hinge plates A is connected to the hinge plate D. A mounting block is provided at the bottom of the hydraulic rod. Hinges C, which are hinged to the hinge plates D, are provided on both sides of the mounting block. A hinge shaft C is provided between the hinge plates C and the hinge plates D. The articulated frame mechanism enables the conversion of the short stroke of the hydraulic rod into a long stroke.

[0007] Preferably, the hinge plate C and hinge plate D have the same length, the length of hinge plate A is 1.5 to 2 times the length of hinge plate C, and the length of hinge plate B is 1.5 to 2 times the length of hinge plate A. By combining the length position structures of hinge plate C, hinge plate D, hinge plate A, and hinge plate B, the conversion of the device stroke is realized.

[0008] Preferably, the height adjustment mechanism includes a support base hinged to the bottom of the outer side of the hinge shaft B. An upper pressure plate is provided at the bottom of both sets of support bases. A limiting groove adapted to the outer side of the support base is provided at the center of the top of the upper pressure plate. A central sliding groove is provided at the center of the top of the upper pressure plate. Positioning sliders connected to the bottom of the support base are symmetrically arranged inside the central sliding groove. Mounting plates are provided at the center of both ends of the top of the upper pressure plate. An adjusting bidirectional threaded rod is provided on one side of both sets of mounting plates that are close to each other. Internal threaded sleeves are symmetrically arranged on the outer side of the adjusting bidirectional threaded rod. Support rods hinged to the sides of the support base are provided on both sides of both sets of internal threaded sleeves. An adjusting wheel is provided at one end of the adjusting bidirectional threaded rod. The height adjustment mechanism enables the adjustment of the distance between the worktable and the upper pressure plate.

[0009] Preferably, slides are symmetrically arranged on both sides of the upper pressure plate, and limit seats are provided at the bottom of both sides of the top mounting base. A displacement slide rod is provided at the bottom of the limit seat, and one end of the bottom of the displacement slide rod is connected to the top of the control base. The displacement slide rod ensures the stability of the position structure when the slide moves up and down with the upper pressure plate.

[0010] Compared with the prior art, the present invention provides a hydraulic press for bearing assembly, which has the following advantages:

[0011] 1. This invention utilizes a hydraulic rod to drive hinge plates C and D to fold and displace, which in turn drives hinge plate A to fold and unfold, and hinge plate A to displace hinge plate B, thereby causing the upper pressure plate at the bottom of the support base to move up and down. Through the length combination structure between hinge plates C, D, A, and B, a long-stroke push is achieved when hinge plate A has a short stroke, thus shortening the stroke distance of the hydraulic rod during bearing assembly and improving the working efficiency of the hydraulic rod.

[0012] 2. This invention utilizes an adjusting wheel to drive a bidirectional threaded rod to rotate. The bidirectional threaded rod, in turn, moves the support rods on the outer sides of two sets of internal threaded sleeves. These support rods then move the support bases at both ends, which in turn move the upper pressure plate up and down. This allows for adjustment of the distance between the upper pressure plate and the worktable. Under the driving force of the hydraulic rod, the upper pressure plate adapts to the height of the bearings to be assembled, thus meeting the requirements for pressing and assembling bearings of different thicknesses and positions, and improving the adaptability of the device. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the main structure of the present invention. Figure 1 ;

[0014] Figure 2 This is a schematic diagram of the main structure of the present invention. Figure 2 ;

[0015] Figure 3 This is an enlarged schematic diagram showing the positional relationship between the articulated frame mechanism and the height adjustment mechanism in this invention;

[0016] Figure 4 This is an enlarged cross-sectional view of the structure at the hinge frame mechanism in this invention;

[0017] Figure 5 This is an enlarged cross-sectional view of the height adjustment mechanism in this invention;

[0018] Figure 6 This is an enlarged cross-sectional view of the structure at the upper pressure plate in this invention.

[0019] In the diagram: 1. Hydraulic press base; 2. Control platform; 3. Workbench; 4. Protective plate; 5. Top mounting seat; 6. Hydraulic cylinder; 7. Displacement slide bar; 8. Upper pressure plate; 9. Hinge plate A; 10. Limit seat; 11. Hinge shaft A; 12. Hinge plate B; 13. Adjusting wheel; 14. Support base; 15. Slide seat; 16. Hinge shaft B; 17. Fixed top seat; 18. Mounting top plate; 19. Hydraulic rod; 20. Hinge plate C; 21. Mounting block; 22. Hinge shaft C; 23. Support rod; 24. Internal threaded sleeve block; 25. Hinge shaft D; 26. Hinge plate D; 27. Adjusting bidirectional threaded rod; 28. Mounting plate; 29. ​​Limit groove; 30. Positioning slider; 31. Center slide groove. Detailed Implementation

[0020] 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.

[0021] Example 1:

[0022] Please see Figure 1-6 The present invention provides a technical solution: a hydraulic press for bearing assembly, including a hydraulic press base 1, a top mounting seat 5 is provided at one end of the front of the top of the hydraulic press base 1, a hydraulic cylinder 6 is provided at the top of the top mounting seat 5, a hydraulic rod 19 is provided at the output end of the hydraulic cylinder 6 through the top mounting seat 5, a control base 2 is provided in the middle of the top of the hydraulic press base 1, a worktable 3 is provided at the top of the control base 2, and protective plates 4 are symmetrically provided on both sides of the control base 2.

[0023] A mounting plate 18 is provided at the center of the bottom of the top mounting base 5. Hinged frame mechanisms are symmetrically arranged on both sides of the bottom of the mounting plate 18. The hinged frame mechanisms are used to extend the stroke of the hydraulic rod 19.

[0024] As a preferred embodiment, the hinge frame mechanism includes two sets of fixed top seats 17 fixed to both sides of the bottom of the top mounting base 5. Hinges A11 are provided through both ends of the bottom of the two sets of fixed top seats 17. Three sets of hinge plates A9 are hinged to the outer side of the hinge shafts A11, and the three sets of hinge plates A9 are spaced apart between the two sets of fixed top seats 17. A hinge shaft D25 is provided through the bottom of the three sets of hinge plates A9. Two sets of hinges are provided on the outer side of the hinge shaft D25 at a position between the three sets of hinge plates A9. The bottom of the two sets of hinge plates B12 is connected by a hinge shaft B16. The middle of the three sets of hinge plates A9 is connected by a hinge plate D26. The bottom of the hydraulic rod 19 is provided with a mounting block 21. The two sides of the mounting block 21 are provided with hinge plates C20 that are hinged to the hinge plate D26. The hinge plate C20 and the hinge plate D26 are connected by a hinge shaft C22. The function of converting the short stroke of the hydraulic rod 19 into a long stroke is realized by the hinge frame mechanism.

[0025] As a preferred embodiment, hinge plate C20 and hinge plate D26 have the same length, hinge plate A9 has a length that is 1.5 to 2 times the length of hinge plate C20, and hinge plate B12 has a length that is 1.5 to 2 times the length of hinge plate A9. By combining the length position structures of hinge plate C20, hinge plate D26, hinge plate A9, and hinge plate B12, the conversion of the device stroke is realized.

[0026] like Figure 1-4 As shown, when the device is in use, the hydraulic cylinder 6 is controlled by an external hydraulic control system, which opens the hydraulic rod 19 at the output end of the hydraulic cylinder 6 to move back and forth. At this time, the up and down movement of the hydraulic rod 19 causes the hinge plates C20 on both sides of the mounting block 21 to move accordingly. The hinge plates C20 cause the hinge plate A9, which is hinged to the hinge plate D26, to move. When the hydraulic rod 19 moves upward, the mounting block 21 pulls the hinge plate D26, which is hinged to the hinge plate C20, closer to the center point of the hydraulic rod 19, thereby causing the hinge plate A9 to rotate about the hinge axis A11 as the center point. The other end of the hinge plate A9... The hinge shaft D25 folds towards the center of the hydraulic rod 19 under the pull of the hinge plate D26. The displacement of the hinge shaft D25 causes the top end of the hinge plate B12 to follow the displacement, which in turn pulls the support base 14 hinged to the bottom of the hinge shaft B16 upward. The displacement of the support base 14 further drives the upper pressure plate 8 to move upward as a whole. When the hydraulic rod 19 moves downward, the upper pressure plate 8 is forced to move downward through the reverse displacement of each component. At this time, the upper pressure plate 8 is pressed against the bearing to be assembled on the top of the worktable 3 by the downward displacement of the upper pressure plate 8, thereby completing the assembly function.

[0027] The displacement of hydraulic rod 19 causes hinge plates C20, D26, A9, and B12 to move. Through the combination of the length structures between hinge plates C20, D26, A9, and B12, the short stroke of hydraulic rod 19 is extended, reducing the stroke time of hydraulic rod 19. This improves the efficiency of the upper pressure plate 8 pressing the bearing and increases the working efficiency of the device.

[0028] Example 2:

[0029] The difference from Embodiment 1 is that an upper pressure plate 8 is provided at the bottom of the articulated frame mechanism, and a height adjustment mechanism is provided at the top of the upper pressure plate 8. The height adjustment mechanism is used to adjust the distance between the upper pressure plate 8 and the worktable 3.

[0030] As a preferred embodiment, the height adjustment mechanism includes a support base 14 hinged to the bottom of the outer side of the hinge shaft B16. An upper pressure plate 8 is provided at the bottom of both sets of support bases 14. A limiting groove 29, which is adapted to the outer side of the support base 14, is provided at the center of the top of the upper pressure plate 8. A central sliding groove 31 is provided at the center of the top of the upper pressure plate 8. Positioning sliders 30, which are connected to the bottom of the support base 14, are symmetrically arranged inside the central sliding groove 31. Mounting plates 28 are provided at the center of both ends of the top of the upper pressure plate 8. Adjustable bidirectional threaded rods 27 are provided on the side of the two sets of mounting plates 28 that are close to each other. Internal threaded sleeves 24 are symmetrically arranged on the outer side of the adjustable bidirectional threaded rods 27. Support rods 23, which are hinged to the sides of the support base 14, are provided on both sides of the two sets of internal threaded sleeves 24. An adjusting wheel 13 is provided at one end of the adjustable bidirectional threaded rod 27. The height adjustment mechanism enables the adjustment of the distance between the worktable 3 and the upper pressure plate 8.

[0031] As a preferred embodiment, slide blocks 15 are symmetrically arranged on both sides of the upper pressure plate 8, and limit seats 10 are provided at the bottom of both sides of the top mounting base 5. A displacement slide rod 7 is provided at the bottom of the limit seat 10, which passes through the slide block 15. One end of the bottom of the displacement slide rod 7 is connected to the top of the control base 2. The displacement slide rod 7 ensures the stability of the position structure of the slide block 15 when it moves up and down with the upper pressure plate 8.

[0032] like Figure 1 , 2As shown in Figures 3, 5, and 6, when it is necessary to adjust the distance between the worktable 3 and the upper pressure plate 8, the adjusting wheel 13 is rotated to drive the adjusting double-threaded rod 27 to rotate. The rotation of the adjusting double-threaded rod 27 further drives the two sets of internal threaded sleeves 24 to move. The internal threaded sleeves 24 drive the support rod 23 to push and pull the support base 14 to slide inside the limiting groove 29. At the same time, the support base 14 drives the positioning slider 30 at its bottom to slide inside the central sliding groove 31, ensuring the stability of the position structure when the support base 14 moves horizontally. When the two sets of support bases 14 approach each other, they drive the two sets of hinge plates B12 to retract inward, and at the same time drive the upper pressure plate 8 to move upward, thereby increasing the distance between the upper pressure plate 8 and the worktable 3. When the two sets of support bases 14 move away from each other, the upper pressure plate 8 moves downward in the opposite direction, thereby decreasing the distance between the worktable 3 and the upper pressure plate 8. Through the cooperation of various components, the function of height adjustment according to different bearing thicknesses and assembly requirements during the bearing assembly process is realized, improving the adaptability of the hydraulic press assembly.

[0033] Working principle: By setting up a hinged frame mechanism, the short stroke of the hydraulic rod 19 during operation is converted into a long stroke through power transmission between hinge plates C20, D26, A9, and B12, thereby improving the working efficiency of the hydraulic rod 19 during operation. At the same time, by setting up a height adjustment mechanism, rotating the bidirectional threaded rod 27 drives the internal threaded sleeve block 24 to move, thereby causing the two support bases 14 on both sides to move away from or closer to each other. Through the displacement of the two sets of support bases 14 inside the upper pressure plate 8, the distance between the worktable 3 and the upper pressure plate 8 can be adjusted. This allows the hydraulic press to be height-adjusted according to the actual assembly needs during bearing assembly, improving the adaptability of the hydraulic press.

[0034] Finally, it should be noted that the above content is only used to illustrate the technical solution of the present invention, and is not intended to limit the scope of protection of the present invention. Simple modifications or equivalent substitutions made by those skilled in the art to the technical solution of the present invention do not depart from the essence and scope of the technical solution of the present invention.

Claims

1. A hydraulic press for assembling bearings, comprising a hydraulic press base (1), a top mounting seat (5) being provided at one end of the front of the top of the hydraulic press base (1), a hydraulic cylinder (6) being provided at the top of the top mounting seat (5), a hydraulic rod (19) penetrating the top mounting seat (5) being provided at the output end of the hydraulic cylinder (6), a control platform (2) being provided in the middle of the top of the hydraulic press base (1), a worktable (3) being provided at the top of the control platform (2), and protective plates (4) being symmetrically provided on both sides of the control platform (2), characterized in that: The top mounting base (5) has a mounting top plate (18) in the middle of its bottom. The mounting top plate (18) has hinge frame mechanisms symmetrically arranged on both sides of its bottom. The hinge frame mechanisms are used to extend the stroke of the hydraulic rod (19). The bottom of the hinge frame mechanism is provided with an upper pressure plate (8), and the top of the upper pressure plate (8) is provided with a height adjustment mechanism. The height adjustment mechanism is used to adjust the distance between the upper pressure plate (8) and the worktable (3). The hinge frame mechanism includes two sets of fixed top seats (17) fixed to the bottom sides of the top mounting base (5). Hinges A (11) are provided through both ends of the bottom of the two sets of fixed top seats (17). Three sets of hinge plates A (9) are hinged to the outside of the hinges A (11), and the three sets of hinge plates A (9) are spaced between the two sets of fixed top seats (17). Hinges D (25) are provided through the bottom of the three sets of hinge plates A (9). The outside of the hinges D (25) is located between the three sets of hinge plates A (9). Two sets of hinge plates B (12) are provided at the position. The bottom of the two sets of hinge plates B (12) are connected by a hinge shaft B (16). The middle of the three sets of hinge plates A (9) are connected by a hinge plate D (26). The bottom of the hydraulic rod (19) is provided with a mounting block (21). The two sides of the mounting block (21) are provided with hinge plates C (20) that are connected to the hinge plate D (26). The hinge plate C (20) and the hinge plate D (26) are connected by a hinge shaft C (22). The hinge plate C (20) and hinge plate D (26) have the same length, the length of hinge plate A (9) is 1.5 to 2 times the length of hinge plate C (20), and the length of hinge plate B (12) is 1.5 to 2 times the length of hinge plate A (9). The height adjustment mechanism includes a support base (14) hinged to the bottom of the outside of the hinge shaft B (16). The bottom of the two sets of support bases (14) is provided with an upper pressure plate (8). The upper pressure plate (8) has a limiting groove (29) at the middle of its top that is compatible with the outside of the support base (14). The upper pressure plate (8) has a central sliding groove (31) at the middle of its top. The central sliding groove (31) has a positioning slider (30) symmetrically arranged inside it that is connected to the bottom of the support base (14). The upper pressure plate (8) has a mounting plate (28) at the middle of both ends of its top. The two sets of mounting plates (28) have a bidirectional threaded rod (27) on the side that is close to each other. The bidirectional threaded rod (27) has an internal threaded sleeve (24) symmetrically arranged on the outside of it. The two sets of internal threaded sleeves (24) have a support rod (23) hinged to the side of the support base (14) on both sides. The bidirectional threaded rod (27) has an adjusting wheel (13) at one end.

2. The hydraulic press for bearing assembly according to claim 1, characterized in that: The upper pressure plate (8) is symmetrically provided with slides (15) on both sides. The bottom of both sides of the top mounting base (5) is provided with limit seats (10). The bottom of the limit seat (10) is provided with a displacement slide rod (7) that passes through the slide (15), and one end of the bottom of the displacement slide rod (7) is connected to the top of the control base (2).

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