Hydraulically driven clamp

Abstract

This utility model discloses a hydraulically driven clamp, which includes a hydraulic pump, a hydraulic cylinder, and at least two clamping mechanisms arranged side by side. Each clamping mechanism includes a first clamping arm, a second clamping arm, a first connecting arm, a second connecting arm, a transmission arm, and a fixed rod. The middle portions of the first and second clamping arms are hinged to the fixed rod, forming an openable clamping jaw. The first and second ends of the first and second connecting arms are respectively hinged to the ends of the first and second clamping arms. The second ends of the first and second connecting arms are hinged to the first end of the transmission arm. The piston rod of the hydraulic cylinder is connected to the second end of the transmission arm of each clamping mechanism and is used to drive the transmission arm of each clamping mechanism to translate. The cylinder body of the hydraulic cylinder is fixedly arranged relative to the fixed rod of each clamping mechanism. The inlet and outlet ends of the hydraulic pump are respectively connected to the return and inlet ports of the hydraulic cylinder. This utility model can efficiently and accurately clamp and fix aluminum buckles.

Description

Technical Field

[0001] This utility model relates to the field of marine tools, and in particular to a hydraulically driven clamp. Background Technology

[0002] Currently, the main method for securing aluminum buckles on boarding ladders or pilot ladders of ships is to manually clamp them with hydraulic clamps. This requires repeated manual pressing of the hydraulic clamp handles to tighten the buckles, which takes about 2-3 minutes per buckle. This is time-consuming and relies on the operator's experience to control the force, making it difficult to ensure consistent clamping force. This can easily lead to insufficient clamping force causing the buckles to loosen or excessive clamping force causing damage.

[0003] In view of the above problems, it is necessary to study a hydraulically driven clamp that can efficiently and accurately clamp and fix aluminum buckles. Utility Model Content

[0004] The purpose of this utility model is to provide a hydraulically driven clamp that can efficiently and accurately clamp and fix aluminum buckles.

[0005] To achieve the above objectives, the solution of this utility model is:

[0006] A hydraulically driven clamp includes a hydraulic pump, a hydraulic cylinder, and at least two clamping mechanisms arranged side by side. Each clamping mechanism includes a first clamping arm, a second clamping arm, a first connecting arm, a second connecting arm, a transmission arm, and a fixed rod. The middle portions of the first and second clamping arms are hinged to the fixed rod, forming an openable clamping jaw. The first and second ends of the first and second connecting arms are respectively hinged to the ends of the first and second clamping arms. The second ends of the first and second connecting arms are hinged to the first end of the transmission arm. The piston rod of the hydraulic cylinder is connected to the second end of the transmission arm of each clamping mechanism and is used to drive the transmission arm of each clamping mechanism to translate. The cylinder body of the hydraulic cylinder is fixedly arranged relative to the fixed rod of each clamping mechanism. The inlet and outlet ends of the hydraulic pump are respectively connected to the return and inlet ports of the hydraulic cylinder.

[0007] The piston rod of the hydraulic cylinder is connected to the second end of the transmission arm of each clamping mechanism through a connecting seat and a sliding rod. The connecting seat is fixedly connected to the end of the piston rod of the hydraulic cylinder, and the sliding rod is fitted into the connecting seat. The second end of the transmission arm of each clamping mechanism is movably sleeved on the sliding rod.

[0008] The clamping mechanism consists of two parts. The middle part of the connecting seat is fixedly connected to the end of the piston rod of the hydraulic cylinder. The sliding rod passes through the connecting seat, and the second ends of the transmission arms of the two clamping mechanisms are respectively movably sleeved on both ends of the sliding rod.

[0009] The connecting seat is provided with a connecting hole, and the sliding rod passes through the connecting hole of the connecting seat. A limiting spring is fitted inside the connecting hole to restrict the rotation of the sliding rod.

[0010] The two ends of the limiting spring are respectively inserted into the connecting seat and the sliding rod.

[0011] The connecting seat is provided with a mounting hole that intersects and communicates with the connecting hole. The first end of the limiting spring is inserted into the mounting hole, and the mounting hole is fitted with a plug that abuts against the limiting spring. The sliding rod is provided with a limiting hole for the second end of the limiting spring to be inserted.

[0012] The second end of the transmission arm of each clamping mechanism is movably fitted with a sliding rod via a linear bearing.

[0013] The piston rod of the hydraulic cylinder is threadedly connected to the connecting seat.

[0014] The first and second clamping arms each have a reinforcing plate fixedly fitted to one end of the clamping opening.

[0015] The inlet of the hydraulic pump is connected to the return port of the hydraulic cylinder via a return pipe, and the outlet of the hydraulic pump is connected to the inlet of the hydraulic cylinder via an inlet pipe.

[0016] After adopting the above solution, this utility model is used to clamp and fix aluminum buckles. In specific use, firstly, the fixing rods of each clamping mechanism and the cylinder body of the hydraulic cylinder are fixed on the frame, and an aluminum buckle is respectively fitted into the clamping jaws between the first clamping arm and the second clamping arm of each clamping mechanism; then, the operator operates the hydraulic pump to drive the piston rod of the hydraulic cylinder to extend, so that the transmission arm of each clamping mechanism moves forward, thereby causing the first linkage arm and the second linkage arm of each clamping mechanism to open relative to each other and the first clamping arm and the second clamping arm of each clamping mechanism to close relative to each other, so that the clamping jaws between the first clamping arm and the second clamping arm of each clamping mechanism clamp the aluminum buckle; after the aluminum buckle is clamped, the operator operates the hydraulic pump again to drive the piston rod of the hydraulic cylinder to retract, so that the transmission arm of each clamping mechanism moves backward, thereby causing the first linkage arm and the second linkage arm of each clamping mechanism to close relative to each other and the first clamping arm and the second clamping arm of each clamping mechanism to open relative to each other, so that the clamping jaws between the first clamping arm and the second clamping arm of each clamping mechanism release the aluminum buckle.

[0017] As can be seen from the above, this utility model is easy to operate and has high clamping efficiency for aluminum buckles. At least two aluminum buckles can be clamped in one clamping operation. Moreover, the operator can accurately control the displacement of the piston rod of the hydraulic cylinder by using the hydraulic pump, thereby accurately controlling the clamping force of each clamping mechanism on the aluminum buckle. This allows for efficient and precise clamping and fixing of the aluminum buckle, ensuring the consistency of the clamping force and the reliability of the clamping. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of this utility model.

[0019] Figure 2 This is a cross-sectional view of the present invention.

[0020] Figure 3 This is a schematic diagram of the connecting seat of this utility model.

[0021] Figure 4 This is a schematic diagram of the sliding rod of this utility model.

[0022] Label Explanation:

[0023] Hydraulic pump 1,

[0024] Hydraulic cylinder 2, piston rod 21, cylinder body 22

[0025] Clamping mechanism 3, jaw 30, first clamping arm 31, second clamping arm 32, first connecting arm 33, second connecting arm 34, transmission arm 35, fixing rod 36, reinforcing plate 37.

[0026] Return pipe 4,

[0027] Inlet pipe 5,

[0028] Connector 6, connecting hole 61, mounting hole 62, plug 621

[0029] Guide rod 7,

[0030] Sliding rod 8, limiting groove 81,

[0031] Limiting spring 9. Detailed Implementation

[0032] To further explain the technical solution of this utility model, the following detailed description is provided through specific embodiments.

[0033] like Figures 1 to 4As shown, this utility model discloses a hydraulically driven clamp, which includes a hydraulic pump 1, a hydraulic cylinder 2, and at least two clamping mechanisms 3 arranged side by side; wherein, the clamping mechanism 3 includes a first clamping arm 31, a second clamping arm 32, a first connecting arm 33, a second connecting arm 34, a transmission arm 35, and a fixing rod 36, the middle part of the first clamping arm 31 and the middle part of the second clamping arm 32 are hinged to the fixing rod 36, and an openable clamping jaw 30 is formed between the first clamping arm 31 and the second clamping arm 32, and the first end of the first connecting arm 33 and the second connecting arm 34 are connected to the clamping mechanism 35. The first end is hinged to the end of the first clamping arm 31 and the end of the second clamping arm 32 respectively. The second end of the first connecting arm 33 and the second end of the second connecting arm 34 are hinged to the first end of the transmission arm 35. The piston rod 21 of the hydraulic cylinder 2 is connected to the second end of the transmission arm 35 of each clamping mechanism 3 and is used to drive the transmission arm 35 of each clamping mechanism 3 to translate. The cylinder body 22 of the hydraulic cylinder 2 is fixedly arranged relative to the fixing rod 36 of each clamping mechanism. The inlet and outlet of the hydraulic pump 1 are connected to the return port and inlet of the hydraulic cylinder 2 respectively.

[0034] This utility model is used to clamp and fix aluminum buckles. Specifically, in use, firstly, the fixing rods 36 of each clamping mechanism 3 and the cylinder body 22 of the hydraulic cylinder 2 are fixed to the frame, and an aluminum buckle is respectively fitted into the clamping openings 30 between the first clamping arm 31 and the second clamping arm 32 of each clamping mechanism 3; then, the operator operates the hydraulic pump 1 to drive the piston rod 21 of the hydraulic cylinder 2 to extend, causing the transmission arm 35 of each clamping mechanism 3 to move forward, thereby causing the first connecting arm 33 and the second connecting arm 34 of each clamping mechanism 3 to open relative to each other, thus allowing the first clamping arm 31 and the second connecting arm 34 of each clamping mechanism 3 to open relative to each other. The clamping arms 32 are relatively closed, so that the clamping jaws 30 between the first clamping arms 31 and the second clamping arms 32 of each clamping mechanism 3 clamp the aluminum buckle. After the aluminum buckle is clamped, the operator controls the hydraulic pump 1 to drive the piston rod 21 of the hydraulic cylinder 2 to retract, so that the transmission arms 35 of each clamping mechanism 3 move in the opposite direction, thereby causing the first connecting arms 33 and the second connecting arms 34 of each clamping mechanism 3 to relatively close, and causing the first clamping arms 31 and the second clamping arms 32 of each clamping mechanism 3 to relatively open, so that the clamping jaws 30 between the first clamping arms 31 and the second clamping arms 32 of each clamping mechanism 3 release the aluminum buckle. As can be seen from the foregoing, this utility model is easy to operate and has high clamping efficiency for aluminum buckles. At least two aluminum buckles can be clamped in one clamping operation. Moreover, the operator can accurately control the clamping force of each clamping mechanism 3 on the aluminum buckle by accurately controlling the displacement of the piston rod 21 of the hydraulic cylinder 2 through the hydraulic pump 1, so as to efficiently and accurately clamp and fix the aluminum buckle, ensuring the consistency of the clamping force and the reliability of the clamping.

[0035] In the embodiments of this utility model, a reinforcing plate 37 is fixedly fitted to one end of the first clamping arm 31 and the second clamping arm 32 forming the clamping opening 30. The reinforcing plate 37 can improve the strength of the clamping mechanism 3 for clamping the aluminum buckle part and improve its service life.

[0036] In an embodiment of this utility model, the inlet end of the hydraulic pump 1 is connected to the return port of the hydraulic cylinder 2 through the return pipe 4, and the outlet end of the hydraulic pump 1 is connected to the inlet port of the hydraulic cylinder 2 through the inlet pipe 5; the hydraulic pump 1 is used to control the inlet and outlet of the hydraulic oil and the pressure of the hydraulic cylinder 2, and can accurately control the displacement of the piston rod 21 of the hydraulic cylinder 2.

[0037] In this embodiment of the invention, the piston rod 21 of the hydraulic cylinder 2 is connected to the second end of the transmission arm 35 of each clamping mechanism 3 via a connecting seat 6 and a sliding rod 8. The connecting seat 6 is fixedly connected to the end of the piston rod 21 of the hydraulic cylinder 2, and the sliding rod 8 is fitted into the connecting seat 6. The second end of the transmission arm 35 of each clamping mechanism 3 is movably sleeved on the sliding rod 8, thus allowing flexible adjustment of the position of each clamping mechanism 3, so that an aluminum buckle can be fitted into the clamping opening 30 between the first clamping arm 31 and the second clamping arm 32 of each clamping mechanism 3. Specifically, there can be two clamping mechanisms 3. The middle part of the connecting seat 6 is fixedly connected to the end of the piston rod 21 of the hydraulic cylinder 2, and the piston rod 21 of the hydraulic cylinder 2 is threadedly connected to the connecting seat 6. The sliding rod 8 passes through the connecting seat 6, and the second ends of the transmission arms 35 of the two clamping mechanisms 3 are movably sleeved on the two ends of the sliding rod 8, respectively. This arrangement makes the force distribution of the invention more balanced and less prone to wear. In addition, the second end of the transmission arm 35 of each clamping mechanism 3 is movably sleeved on the sliding rod 8 through a linear bearing (not shown), so that the clamping mechanism 3 moves smoothly relative to the sliding rod 8.

[0038] In an embodiment of this utility model, the connecting seat 6 is provided with a connecting hole 61, and the sliding rod 8 passes through the connecting hole 61 of the connecting seat 6. A limiting spring 9 is fitted inside the connecting hole 61 to restrict the rotation of the sliding rod 8. The two ends of the limiting spring 9 are respectively inserted into the connecting seat 6 and the sliding rod 8. Specifically, the connecting seat 6 may be provided with a mounting hole 62 that intersects and communicates with the connecting hole 61. The first end of the limiting spring 9 is inserted into the mounting hole 62 to prevent the limiting spring 9 from shifting. The mounting hole 62 is fitted with a plug 621 that abuts against the limiting spring 9 to prevent the limiting spring 9 from coming out. The sliding rod 8 is provided with a limiting groove 81 for the second end of the limiting spring 9 to be inserted.

[0039] In embodiments of this utility model, the hydraulically driven clamp may further include at least two guide rods 7 that cooperate with the connecting seat 6. The guide rods 7 are used to slide with the frame to stabilize the translation of the connecting seat 6.

[0040] The above embodiments and figures are not intended to limit the product form and style of this utility model. Any appropriate changes or modifications made by those skilled in the art should be considered as not departing from the patent scope of this utility model.

Claims

1. A hydraulically driven clamp characterized by: Includes a hydraulic pump, a hydraulic cylinder, and at least two clamping mechanisms arranged side by side; The clamping mechanism includes a first clamping arm, a second clamping arm, a first connecting arm, a second connecting arm, a transmission arm, and a fixed rod. The middle parts of the first clamping arm and the second clamping arm are hinged to the fixed rod. An openable clamping jaw is formed between the first clamping arm and the second clamping arm. The first end of the first connecting arm and the first end of the second connecting arm are respectively hinged to the end of the first clamping arm and the end of the second clamping arm. The second end of the first connecting arm and the second end of the second connecting arm are hinged to the first end of the transmission arm. The piston rod of the hydraulic cylinder is connected to the second end of the transmission arm of each clamping mechanism and is used to drive the transmission arm of each clamping mechanism to translate. The cylinder body of the hydraulic cylinder is fixedly set relative to the fixing rod of each clamping mechanism. The inlet and outlet of the hydraulic pump are connected to the return and inlet of the hydraulic cylinder, respectively.

2. The hydraulic drive clamp of claim 1, wherein: The piston rod of the hydraulic cylinder is connected to the second end of the transmission arm of each clamping mechanism through a connecting seat and a sliding rod. The connecting seat is fixedly connected to the end of the piston rod of the hydraulic cylinder, and the sliding rod is fitted into the connecting seat. The second end of the transmission arm of each clamping mechanism is movably sleeved on the sliding rod.

3. The hydraulic drive clamp of claim 2, wherein: The clamping mechanism consists of two parts. The middle part of the connecting seat is fixedly connected to the end of the piston rod of the hydraulic cylinder. The sliding rod passes through the connecting seat, and the second ends of the transmission arms of the two clamping mechanisms are respectively movably sleeved on both ends of the sliding rod.

4. The hydraulic drive clamp of claim 3, wherein: The connecting seat is provided with a connecting hole, and the sliding rod passes through the connecting hole of the connecting seat. A limiting spring is fitted inside the connecting hole to restrict the rotation of the sliding rod.

5. The hydraulic drive clamp of claim 4, wherein: The two ends of the limiting spring are respectively inserted into the connecting seat and the sliding rod.

6. The hydraulic drive clamp of claim 5, wherein: The connecting seat is provided with a mounting hole that intersects and communicates with the connecting hole. The first end of the limiting spring is inserted into the mounting hole, and the mounting hole is fitted with a plug that abuts against the limiting spring. The sliding rod is provided with a limiting hole for the second end of the limiting spring to be inserted.

7. The hydraulic drive clamp of claim 2, wherein: The second end of the transmission arm of each clamping mechanism is movably fitted with a sliding rod via a linear bearing.

8. The hydraulic drive clamp of claim 2, wherein: The piston rod of the hydraulic cylinder is threadedly connected to the connecting seat.

9. The hydraulic drive clamp of claim 1, wherein: The first and second clamping arms each have a reinforcing plate fixedly fitted to one end of the clamping opening.

10. The hydraulic drive clamp of claim 1 wherein: The inlet of the hydraulic pump is connected to the return port of the hydraulic cylinder via a return pipe, and the outlet of the hydraulic pump is connected to the inlet of the hydraulic cylinder via an inlet pipe.

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