Hydraulic clamp of generator support

Abstract

The invention relates to the technical field of clamp devices, and particularly discloses a hydraulic clamp of a generator support. A plurality of hydraulic seats are arranged at the top of the support, an oil cavity is formed in each hydraulic seat, a piston is arranged in each oil cavity in a lifting mode, and a pressing rod is hinged to the top of each hydraulic seat; the limiting groove is annularly formed in the top of the piston, and an arc-shaped limiting strip I is elastically arranged in the limiting groove; the limiting assembly is rotationally arranged at the top of the interior of the oil cavity, and the limiting assembly and the first arc-shaped limiting strip are matched with each other so that the piston can be limited. The flow guide assembly is arranged along the annular face of the oil cavity. According to the hydraulic clamp of the generator support, the situation that before a hydraulic lock or a balance valve is not opened, oil cavity pressure is increased, so that an oil cavity sealing piece or a limiting piece is damaged easily is avoided, the service life of the device is guaranteed, and meanwhile the clamping reliability of a generator is guaranteed.

Description

Technical Field

[0001] The invention relates to the technical field of clamp devices, and in particular to a hydraulic clamp of a generator bracket. Background Art

[0002] The hydraulic clamp of the generator bracket is a special device that uses a hydraulic system to generate clamping force to fix the workpiece for processing or assembly. Its core advantages lie in high clamping force, stability and adjustability. It is suitable for application scenarios that require high precision and heavy loads, and can provide a stable clamping effect for the generator in the next process.

[0003] A Chinese patent with announcement number CN217453008U discloses a fixing fixture for an automobile generator bracket, comprising a support frame and a workbench mounted on the support frame, a worm gear transmission structure is arranged in a support plate on the support frame, one end of the worm gear transmission structure extends through one side of the support plate to the outside and is connected to a handle, the other end of the worm gear transmission structure extends through the top of the support plate to the outside and is connected to the bottom of the workbench, a first fixture positioning structure and a second fixture positioning structure are arranged on the top of the workbench, the first fixture positioning structure and the second fixture positioning structure both comprise a support seat and a hydraulic cylinder, a pressure rod is arranged on the hydraulic cylinder, and by rotating the handle, the handle drives the worm gear transmission structure to rotate, the worm gear transmission structure drives the workbench to rotate, and the workbench drives the fixture to rotate, thereby achieving an effect that the fixture can rotate.

[0004] The above patent document achieves the effect that the clamp can rotate by turning the handle, which drives the worm gear transmission structure to rotate, which drives the workbench to rotate, and the workbench drives the clamp to rotate. However, with long-term use, the piston may wear and the hydraulic oil may leak, resulting in insufficient pressure, or the hydraulic pump may be suddenly damaged during use, resulting in failure to pump oil normally, which may easily cause the clamp to loosen and affect the next step of the generator processing, affecting production efficiency, and seriously causing damage to the generator, increasing the economic cost of production. Summary of the invention

[0005] The present invention provides a hydraulic clamp for a generator bracket, aiming to solve the technical problems in the related art of avoiding sudden loosening of the clamp, thereby affecting the next step of processing of the generator and affecting production efficiency, and shortening the service life of the locking mechanism.

[0006] A hydraulic clamp for a generator support of the present invention comprises:

[0007] Support; Multiple hydraulic seats are arranged on the top of the support, each of which has an oil chamber inside, a piston is arranged inside the oil chamber for lifting, a pressure rod is hinged on the top of the hydraulic seat, and the lifting of the piston can drive the pressure rod to clamp or release the generator;

[0008] A limiting groove is annularly provided on the top of the piston, an arc-shaped limiting strip 1 is elastically provided inside the limiting groove, and an inclined surface is provided on the arc-shaped limiting strip 1;

[0009] The limiting assembly is rotatably arranged at the inner top of the oil chamber, and the limiting assembly cooperates with the arc-shaped limiting strip 1 to limit the piston, and the piston moves upward so that the limiting assembly is inserted into the inner part of the limiting groove, and the limiting assembly cooperates with the inclined surface on the arc-shaped limiting strip 1 to limit the piston;

[0010] The flow guide component is arranged along the annular surface of the oil chamber, and the flow guide component can guide the hydraulic oil of the return oil, so that the limit assembly and the piston are released from the limit and then the piston is driven to move downward.

[0011] Preferably, the limiting assembly includes: a sealing head, a rotating cylinder, a limiting ring, and the sealing head is arranged at the top of the oil chamber to seal the oil chamber to ensure the overall sealing of the oil chamber. A rotating groove is provided on the outer circumferential surface of the sealing head. The rotating cylinder is rotatably sleeved on the outer circumferential surface of the sealing head, and a rotating ring is provided on the inner ring surface of the rotating cylinder, and the rotating ring is rotatably matched with the rotating groove. The limiting ring is arranged at the bottom of the rotating cylinder, and an arc-shaped limiting strip 2 is provided on the outer circumferential surface of the limiting ring, and the arc-shaped limiting strip 1 and the arc-shaped limiting strip 2 cooperate with each other to limit the piston.

[0012] Preferably, an arc-shaped groove is opened inside the limiting groove, and springs are arranged at intervals inside the arc-shaped groove. The springs are used to elastically support the arc-shaped limiting strip 1. The springs are evenly spaced around the piston, thereby providing stable elastic support for the arc-shaped limiting strip 1.

[0013] Preferably, the guide assembly includes: an annular groove and an annular baffle, the annular groove is opened on the inner annular surface of the oil chamber, and the return oil pipeline is connected to the interior of the annular groove, the annular baffle is arranged inside the annular groove, and the annular baffle is provided with openings spaced apart in the circumferential direction.

[0014] Preferably, connecting rods are symmetrically arranged on the outer wall of the rotating cylinder, and one end of the connecting rod extends through the opening to the inside of the annular groove, an arc rod is arranged on the extended end of the connecting rod, and the arc rod is fixedly connected to the connecting rod so that the two rods are arranged in a T-shape.

[0015] Preferably, a sliding block is provided inside the annular groove, the sliding block can slide in the annular groove, the sliding block is connected to one end of the arc rod, and tension springs are provided inside the annular groove at intervals along the circumferential direction, the tension springs are connected to the other end of the arc rod, so that the tension spring pushes the arc rod and the sliding block.

[0016] Preferably, a fixed block is provided on the top of the hydraulic seat, support plates are provided on the opposite outer walls of the fixed block, and pressure rods are hinged on the opposite side walls of the two support plates, a pressure column is provided at one end of the pressure rod, and the bottom end of the pressure column is made of rubber material to avoid damage to the generator when clamping.

[0017] Preferably, a U-shaped groove is formed at the other end of the pressure rod, a piston rod is disposed on the top of the piston, and the top end of the piston rod is hinged in the U-shaped groove, and a support leg is disposed at the bottom of the support.

[0018] The beneficial effects of the present invention are:

[0019] When clamping the generator, first place the generator on multiple hydraulic seats, and the external hydraulic pump pumps the hydraulic oil from the bottom of the oil chamber, so that the hydraulic oil pushes the piston upward. The rising piston drives the pressure rod to rotate around the hinge position, so that the pressure rod fixes the generator. At the same time, when the piston rises to the top of the oil chamber, the limit assembly is inserted into the limit groove. As the piston continues to move upward, the limit assembly squeezes the inclined surface on the arc limit strip 1, so that the arc limit strip 1 cooperates with the limit assembly to limit and fix the piston, thereby avoiding damage to the hydraulic pump when the fixture is clamping the generator for processing, resulting in failure of the hydraulic fixture, avoiding damage to the generator during processing, and ensuring the efficiency of generator production.

[0020] When returning oil, the limit assembly will be unlocked first by oil pressure, so as to avoid oil return to the oil chamber before the limit device is opened. The increase of oil chamber pressure may cause damage to the oil chamber seal or limit part, thus ensuring the service life of the device and the clamping reliability of the generator. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0022] Figure 2 The present invention Figure 1 Enlarged view of point A in the middle.

[0023] Figure 3 It is a schematic diagram of the compression rod structure of the present invention.

[0024] Figure 4 It is a schematic diagram of the oil chamber structure of the present invention.

[0025] Figure 5 The present invention Figure 4 Enlarged view of point B in the middle.

[0026] Figure 6 It is a schematic diagram of the piston structure of the present invention.

[0027] Figure 7 It is a schematic diagram of the rotating drum structure of the present invention.

[0028] Figure 8 It is a structural schematic diagram of an arc-shaped limit strip of the present invention.

[0029] Fig. 9 It is a schematic diagram of the arc rod structure of the present invention.

[0030] Fig.10 It is a schematic diagram of the sliding block structure of the present invention.

[0031] Reference numerals:

[0032] 10. Support; 11. Support leg; 20. Hydraulic seat; 21. Support plate; 22. Pressure rod; 23. Pressure column; 24. Fixed block; 25. U-shaped groove; 26. Sealing head; 30. Oil chamber; 31. Piston; 33. Piston rod; 34. Limiting groove; 35. Arc-shaped limiting strip 1; 36. Arc-shaped groove; 37. Spring; 40. Rotating cylinder; 41. Limiting ring; 42. Annular groove; 43. Annular baffle; 45. Tension spring; 46. Arc-shaped limiting strip 2; 50. Opening; 51. Arc-shaped rod; 52. Connecting rod; 53. Sliding block. DETAILED DESCRIPTION

[0033] Embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to be used to explain the present invention, but should not be understood as limiting the present invention.

[0034] like Figures 1 to 10 As shown, a hydraulic clamp of a generator bracket of the present invention comprises: a support 10, a plurality of hydraulic seats 20, a piston 31 and a pressure rod 22, wherein the plurality of hydraulic seats 20 are arranged on the top of the support 10, an oil chamber 30 is opened inside each hydraulic seat 20, a piston 31 is lifted and arranged inside the oil chamber 30, the pressure rod 22 is hinged at the top of the hydraulic seat 20, and the lifting and lowering of the piston 31 can drive the pressure rod 22 to clamp or release the generator, and further comprises: a limit groove 34, a limit assembly and an arcuate limit strip 35, the limit groove 34 is annularly opened on the top of the piston 31, the arcuate limit strip 35 is elastically arranged inside the limit groove 34, and an inclined surface is opened on the arcuate limit strip 35, the limit assembly is rotatably arranged on the inner top of the oil chamber 30, and the limit assembly and the arcuate limit strip 35 cooperate with each other to limit the piston 31.

[0035] When clamping the generator, first place the generator on multiple hydraulic seats 20, and an external hydraulic pump pumps hydraulic oil from the bottom of the oil chamber 30 to make the hydraulic oil push the piston 31 upward. The rising piston 31 drives the pressure rod 22 to rotate around the hinge position, so that the pressure rod 22 fixes the generator. At the same time, when the piston 31 rises to the top of the oil chamber 30, the limiting assembly is inserted into the limiting groove 34. As the piston 31 continues to move upward, the limiting assembly squeezes the inclined surface on the arc-shaped limiting strip 35, so that the arc-shaped limiting strip 35 cooperates with the limiting assembly to limit and fix the piston 31, thereby avoiding damage to the hydraulic pump when the clamp is clamping the generator for processing, resulting in failure of the hydraulic clamp, avoiding damage to the generator during processing, and ensuring the efficiency of generator production.

[0036] like Figures 4 to 8 As shown, the limiting assembly includes: a sealing head 26, a rotating cylinder 40, a limiting ring 41, and the sealing head 26 is arranged at the top of the oil chamber 30, so as to seal the oil chamber 30 and ensure the overall sealing of the oil chamber 30. A rotating groove is provided on the outer circumferential surface of the sealing head 26, and the rotating cylinder 40 is rotatably sleeved on the outer circumferential surface of the sealing head 26, and a rotating ring is provided on the inner ring surface of the rotating cylinder 40, and the rotating ring is rotatably matched with the rotating groove, and the limiting ring 41 is provided at the bottom of the rotating cylinder 40, and an arc-shaped limiting strip 2 46 is provided on the outer circumferential surface of the limiting ring 41, and the arc-shaped limiting strip 1 35 cooperates with the arc-shaped limiting strip 2 46 to limit the piston 31, and an arc-shaped groove 36 is provided inside the limiting groove 34, and springs 37 are provided at intervals inside the arc-shaped groove 36, and the springs 37 are used to elastically support the arc-shaped limiting strip 1 35, and the springs 37 are evenly spaced around the piston 31, so as to stably elastically support the arc-shaped limiting strip 1 35.

[0037] When the piston 31 continuously moves upward, the limiting ring 41 will be inserted into the limiting groove 34. When the piston 31 continues to move upward, the bottom of the limiting ring 41 contacts the inclined surface on the arc limiting strip 35 and squeezes the arc limiting strip 35 so that the arc limiting strip 35 shrinks toward the inside of the arc groove 36. When the arc limiting strip 46 is located below the arc limiting strip 35 in the vertical direction, the arc limiting strip 35 pops out of the arc groove 36, and the tip of the inclined surface of the arc limiting strip 35 abuts against the outer peripheral surface of the limiting ring 41, thereby limiting the piston 31, avoiding damage to the externally connected oil pump or bursting of the oil pipe, which may affect the clamping force of the fixture, ensuring a stable clamping force, and avoiding damage to the generator caused by sudden occurrence of such situations during processing.

[0038] During operation, when oil enters the oil chamber 30, the piston 31 can be pushed upward, and when oil returns from the oil chamber 30, the piston 31 can be pushed downward, thereby realizing the up and down movement of the piston 31. The existing hydraulic lock or balance valve is usually controlled independently, which may easily cause the pressure in the oil chamber 30 to increase before the hydraulic lock or balance valve is opened when the oil returns from the oil chamber 30, which may easily cause damage to the seal or limit member of the oil chamber 30, thereby posing a huge safety hazard.

[0039] To further illustrate how to avoid the situation where the hydraulic lock or the balancing valve is not opened when the oil returns to the oil chamber 30, the hydraulic lock or the balancing valve is not opened when the oil returns to the oil chamber 30, which may easily cause damage to the seal of the oil chamber 30 or damage to the limiter, thereby posing a huge safety hazard. Therefore, the limiter assembly is improved, which will be described in detail below.

[0040] like Figures 4 to 10 As shown, an annular groove 42 is provided on the inner annular surface of the oil chamber 30, and the oil return pipeline is connected to the inside of the annular groove 42, an annular baffle 43 is provided inside the annular groove 42, and an opening 50 is circumferentially provided on the annular baffle 43, and a connecting rod 52 is symmetrically provided on the outer wall of the rotating cylinder 40, and one end of the connecting rod 52 extends to the inside of the annular groove 42 through the opening 50, and an arc rod 51 is provided on the extended end of the connecting rod 52, and the arc rod 51 is fixedly connected to the connecting rod 52 so that the two rods are arranged in a T-shape, and a sliding block 53 is provided inside the annular groove 42, and the sliding block 53 can slide in the annular groove 42, and the sliding block 53 is connected to one end of the arc rod 51, and tension springs 45 are provided inside the annular groove 42 at intervals along the circumferential direction, and the tension spring 45 is connected to the other end of the arc rod 51, so that the tension spring 45 pushes the arc rod 51 and the sliding block 53, thereby supporting both.

[0041] It should be noted that there are at least two sliding blocks 53 , and two in the present embodiment. An oil pump pipeline is provided inside the support 10 , and an oil return pipeline is connected to the inside of the annular groove 42 , so as to ensure stable pushing of the two sliding blocks 53 .

[0042] When the oil chamber 30 returns oil to drive the piston 31 to move downward, the hydraulic oil enters the annular groove 42. As the hydraulic oil fills the annular groove 42, the sliding block 53 is pushed to connect the opposite side wall of the arc rod 51, so that the sliding block 53 slides along the circumference of the annular groove 42 toward the opening 50. The movement of the sliding block 53 drives the arc rod 51 and the connecting rod 52 to move. At the same time, the movement of the sliding block 53 causes the tension spring 45 to contract. The movement of the arc rod 51 and the connecting rod 52 drives the rotating cylinder 40 to rotate. The rotation of the rotating cylinder 40 drives the limit ring 41 and the arc limit strip 2 46 to rotate, so that the arc limit strip 2 46 and the arc limit strip 1 35 are vertically aligned. When the sliding block 53 moves to the opening 50, the hydraulic oil will enter the oil chamber 30 so that the hydraulic oil is located at the top of the piston 31. As the return oil is continuously pumped, the hydraulic oil drives the piston 31 to move downward, thereby loosening the clamp. Therefore, when returning the oil, the limit assembly will be unlocked by the oil pressure first, thereby preventing the oil chamber 30 from returning before the hydraulic lock or the balance valve is opened. The pressure increase in the oil chamber 30 may easily cause damage to the seal of the oil chamber 30 or the limit member, thereby ensuring the service life of the device and the clamping reliability of the generator.

[0043] like Figures 1 to 4 As shown, a fixing block 24 is provided on the top of the hydraulic seat 20, and support plates 21 are provided on the opposite outer walls of the fixing block 24, and pressure rods 22 are hinged on the opposite side walls of the two support plates 21, and a pressure column 23 is provided at one end of the pressure rod 22, and the bottom end of the pressure column 23 is made of rubber to avoid damage to the generator when clamping, and a U-shaped groove 25 is provided at the other end of the pressure rod 22, and a piston rod 33 is provided on the top of the piston 31, and the top end of the piston rod 33 is hinged in the U-shaped groove 25, so that the piston 31 can push the pressure rod 22 through the piston rod 33 when it rises, so as to realize the clamping or release of the generator by the pressure rod 22, and a support leg 11 is provided at the bottom of the support 10, and the support leg 11 is used to support the support 10.

[0044] It should be noted that an oil hole is provided inside the limiting groove 34 on the piston 31 , so that the hydraulic oil remaining in the limiting groove 34 can be directed to the outside to avoid accumulation in the limiting groove 34 and affecting normal limiting.

[0045] In the description of the present invention, it is to be understood that the terms “center”, “longitudinal”, “lateral”, “length”, “width”, “thickness”, “up”, “down”, “front”, “back”, “left”, “right”, “vertical”, “horizontal”, “top”, “bottom”, “inside”, “outside”, “clockwise”, “counterclockwise”, “axial”, “radial”, “circumferential”, etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0046] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0047] Although the embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations of the present invention. A person skilled in the art may change, modify, replace and vary the above embodiments within the scope of the present invention.

Claims

1. A hydraulic clamp for a generator bracket, characterized in that: include: A support (10); a plurality of hydraulic seats (20) are arranged on the top of the support (10); an oil chamber (30) is provided inside each hydraulic seat (20); a piston (31) is provided inside the oil chamber (30) for lifting; a pressure rod (22) is hingedly connected to the top of the hydraulic seat (20); and the lifting of the piston (31) can drive the pressure rod (22) to clamp or release the generator; A limiting groove (34) is annularly provided on the top of the piston (31), an arc-shaped limiting strip (35) is elastically provided inside the limiting groove (34), and an inclined surface is provided on the arc-shaped limiting strip (35); A limit assembly is rotatably disposed at the top of the oil chamber (30), and the piston (31) moves upward so that the limit assembly is inserted into the limit groove (34), and the limit assembly cooperates with an arc-shaped limit strip (35) to limit the piston (31); The flow guide component is arranged along the annular surface of the oil chamber (30), and the flow guide component is capable of guiding the hydraulic oil returning to the oil, so that the piston (31) is driven to move downward after the limit assembly and the piston (31) are released from the limit.

2. A hydraulic clamp for a generator support according to claim 1, characterized in that: The limiting assembly comprises: a sealing head (26), a rotating cylinder (40), and a limiting ring (41). The sealing head (26) is arranged at the top of the oil chamber (30) so as to seal the oil chamber (30) and ensure the overall sealing performance of the oil chamber (30). A rotating groove is provided on the outer circumferential surface of the sealing head (26). The rotating cylinder (40) is rotatably sleeved on the outer circumferential surface of the sealing head (26). A rotating ring is provided on the inner circumferential surface of the rotating cylinder (40), and the rotating ring is rotatably matched with the rotating groove. The limiting ring (41) is arranged at the bottom of the rotating cylinder (40). An arc-shaped limiting strip 2 (46) is provided on the outer circumferential surface of the limiting ring (41), and the arc-shaped limiting strip 1 (35) and the arc-shaped limiting strip 2 (46) cooperate with each other to limit the piston (31).

3. The hydraulic clamp for a generator support according to claim 2, characterized in that: An arc-shaped groove (36) is provided inside the limiting groove (34), and springs (37) are provided inside the arc-shaped groove (36). The springs (37) are used to elastically support the arc-shaped limiting strip (35). The springs (37) are evenly spaced around the piston (31), thereby providing stable elastic support to the arc-shaped limiting strip (35).

4. The hydraulic clamp for a generator support according to claim 3, characterized in that: The flow guide assembly comprises: an annular groove (42) and an annular baffle (43); the annular groove (42) is formed on the inner annular surface of the oil chamber (30), and the oil return pipeline is connected to the inside of the annular groove (42); the annular baffle (43) is arranged inside the annular groove (42), and the annular baffle (43) is provided with openings (50) at intervals in the circumferential direction.

5. The hydraulic clamp for a generator support according to claim 4, characterized in that: A connecting rod (52) is symmetrically arranged on the outer wall of the rotating cylinder (40), and one end of the connecting rod (52) passes through the opening (50) and extends to the inside of the annular groove (42). An arc-shaped rod (51) is arranged on the extended end of the connecting rod (52), and the arc-shaped rod (51) is fixedly connected to the connecting rod (52), so that the two rods are arranged in a T-shape.

6. The hydraulic clamp for a generator support according to claim 5, characterized in that: A sliding block (53) is arranged inside the annular groove (42). The sliding block (53) can slide in the annular groove (42). The sliding block (53) is connected to one end of the arc-shaped rod (51). Tension springs (45) are arranged inside the annular groove (42) at intervals in the circumferential direction. The tension springs (45) are connected to the other end of the arc-shaped rod (51), so that the tension springs (45) push the arc-shaped rod (51) and the sliding block (53).

7. The hydraulic clamp for a generator support according to claim 6, characterized in that: A fixing block (24) is arranged on the top of the hydraulic seat (20), support plates (21) are arranged on the opposite outer walls of the fixing block (24), and pressure rods (22) are hinged on the opposite side walls of the two support plates (21), a pressure column (23) is arranged at one end of the pressure rod (22), and the bottom end of the pressure column (23) is made of rubber material to avoid damage to the generator when clamping.

8. The hydraulic clamp for a generator support according to claim 7, characterized in that: A U-shaped groove (25) is formed at the other end of the pressure rod (22), a piston rod (33) is disposed at the top of the piston (31), and the top end of the piston rod (33) is hinged in the U-shaped groove (25), and a support leg (11) is disposed at the bottom of the support (10).

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