Clamp for hoisting hydraulic valve body

Abstract

The utility model relates to a clamp for lifting a hydraulic valve body. The clamp comprises a lifting hook, a clamp, a first fixing plate and a second fixing plate, a hinge shaft is arranged at the lower end of the lifting hook, a clamp is hinged to the hinge shaft, and a first fixing plate and a second fixing plate are arranged on two clamping jaws of the clamp respectively; a first positioning rod is arranged on the first fixing plate, second positioning rods are arranged at the two ends of the second fixing plate respectively, and soft sleeves are arranged on the first positioning rod and the second positioning rods respectively. The clamp is simple in structure, and when the clamp works, the two clamping jaws can be tightened inwards in a hinge mode under the action of the self weight of the hydraulic valve body, so that the first positioning rod and the second positioning rod are firmly buckled in an inner hole of the hydraulic valve body, and the effect of fixing the hydraulic valve body is achieved; and the first positioning rod and the two second positioning rods are integrally distributed in a triangular shape, so that the hydraulic valve body is stable and does not incline in the hoisting process.

Description

Technical Field

[0001] The utility model belongs to the technical field of workholding fixtures and relates to a fixture for hoisting a hydraulic valve body. Background Art

[0002] The hydraulic valve body of a hydraulic valve is relatively heavy by itself, with a single weight of about 100 kilograms. It is unrealistic to manually carry it to a machining center for processing. Generally, an auxiliary hoisting tool is used to hoist it to the machining center for process machining.

[0003] Usually, a magnet adsorption type sling is used for hoisting work. The hydraulic valve body is adsorbed by a magnet and then hoisted to the machining center by a traveling crane for processing. However, due to the uneven surface of the cast hydraulic valve body, during the magnet adsorption process, the hydraulic valve body is locally adsorbed. During hoisting, the hydraulic valve body may fall, posing a safety hazard; the hydraulic valve body is relatively heavy by itself. If a large magnet is not placed at the center position of the hydraulic valve body, the hydraulic valve body will tilt during hoisting, which is not convenient for clamping and affects work efficiency, etc. Summary of the Invention

[0004] The purpose of the utility model is to overcome the deficiencies existing in the prior art, solve the problems that the hydraulic valve body may fall or the center of gravity may tilt during hoisting, and provide a fixture for hoisting a hydraulic valve body.

[0005] To achieve the above purpose, the following technical solutions are adopted:

[0006] The fixture for hoisting a hydraulic valve body includes a hook, a clamp, a first fixing plate and a second fixing plate; a hinge shaft is arranged at the lower end of the hook, and the clamp is hinged on the hinge shaft. The two clamping jaws of the clamp are respectively provided with a first fixing plate and a second fixing plate. A first positioning rod is arranged on the first fixing plate, and second positioning rods are respectively arranged at both ends of the second fixing plate. Soft sleeves are arranged on the first positioning rod and the second positioning rods respectively.

[0007] Preferably, a first connection hole and a second connection hole are respectively opened at one end of the two clamping jaws; the other ends of the two clamping jaws are respectively fixed to the first fixing plate and the second fixing plate by welding.

[0008] Preferably, a first connection groove is opened on the first fixing plate, and a second connection groove is opened on the second fixing plate.

[0009] Preferably, a first stepped hole is opened on the first fixing plate, and the small hole of the first stepped hole is a threaded hole.

[0010] Preferably, second stepped holes are respectively opened at both ends of the second fixing plate, and the small holes of the second stepped holes are threaded holes.

[0011] Further, a threaded hole is provided inside the soft sleeve; a retaining ring is provided at one end of the soft sleeve, and a torsion plane is provided on one side of the soft sleeve.

[0012] Compared with the prior art, the present utility model has the following advantages:

[0013] The structure of the present utility model is simple. When the clamp works, relying on the action of the self-weight of the hydraulic valve body, the two clamping jaws will tighten inward in the form of hinges, so that the first positioning rod and the second positioning rod are firmly buckled in the inner hole of the hydraulic valve body, playing a role in fixing the hydraulic valve body. And the first positioning rod and the two second positioning rods are integrally distributed in a triangular shape, making the hydraulic valve body stable during the hoisting process and not tilting. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is a schematic diagram of the overall structure of the present utility model.

[0015] Figure 2 is a schematic diagram of the hook structure of the present utility model.

[0016] Figure 3 is an exploded schematic diagram of the clamping jaw assembly of the present utility model.

[0017] Figure 4 is a schematic diagram of the structure of the second fixing plate of the present utility model.

[0018] Figure 5 is a schematic diagram of the structure of the first fixing plate of the present utility model.

[0019] Figure 6 is a schematic diagram of the structure of the soft sleeve of the present utility model.

[0020] In the figure: 1, hook; 3, clamp; 4, first fixing plate; 5, second fixing plate; 6, hinge shaft; 7, clamping jaw; 8, first positioning rod; 9, soft sleeve; 10, first connecting hole; 11, second connecting hole; 12, first connecting groove; 13, second connecting groove; 14, first stepped hole; 17, second stepped hole; 20, second positioning rod; 21, threaded hole; 22, retaining ring; 23, torsion plane. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0021] In order to enable those skilled in the art to better understand the solution of the present utility model, the technical solutions in the embodiments of the present utility model will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present utility model.

[0022] AsFigures 1-6 As shown in the figure, a fixture for hoisting a hydraulic valve body includes a hook 1, a connecting rod 2, a clamp 3, a first fixing plate 4 and a second fixing plate 5; a hinge shaft 6 is provided on the hook 1, and the clamp 3 is hinged on the hinge shaft 6. The first fixing plate 4 and the second fixing plate 5 are respectively arranged on the two clamping jaws 7 of the clamp 3, and the two clamping jaws 7 of the clamp 3 can rotate on the hinge shaft 6;

[0023] A first positioning rod 8 is arranged on the first fixing plate 4, and second positioning rods 20 are respectively arranged at both ends of the second fixing plate 5. The first positioning rod 8 and the second positioning rods 20 can be inserted into the vacant positions on both sides of the hydraulic valve body to achieve clamping and fixing;

[0024] Soft sleeves 9 are respectively arranged on the first positioning rod 8 and the second positioning rods 20, and the soft sleeves 9 prevent the first positioning rod 8 and the second positioning rods 20 from rubbing and bumping against the hydraulic valve body.

[0025] Furthermore, first connection holes 10 and second connection holes 11 are respectively opened at one ends of the two clamping jaws 7, and the two clamping jaws 7 are respectively installed on the hinge shaft 6 by using the first connection holes 10 and the second connection holes 11;

[0026] The other ends of the two clamping jaws 7 are respectively fixed to the first fixing plate 4 and the second fixing plate 5 by welding.

[0027] Furthermore, a first connection groove 12 is opened on the first fixing plate 4, and a second connection groove 13 is opened on the second fixing plate 5; the first connection groove 12 and the second connection groove 13 make the welding relationship firm among the first fixing plate 4, the second fixing plate 5 and the clamping jaws 7.

[0028] Furthermore, a first stepped hole 14 is opened on the first fixing plate 4. The small hole of the first stepped hole 14 is a threaded hole, and the rod part of the first positioning rod 8 is a threaded rod. The first positioning rod 8 is screwed into the first stepped hole 14.

[0029] Furthermore, second stepped holes 17 are respectively opened at both ends of the second fixing plate 5. The small holes of the second stepped holes 17 are threaded holes, and the rod parts of the second positioning rods 20 are threaded rods. The second positioning rods 20 are screwed into the second stepped holes 17.

[0030] Furthermore, a threaded hole 21 that can cooperate with the first positioning rod 8 is opened inside the soft sleeve 9. The soft sleeve 9 can be screwed onto the first positioning rod 8 and the second positioning rods 20 by using the threaded hole 21; a retaining ring 22 is arranged at one end of the soft sleeve 9, and the retaining ring 22 prevents the first fixing plate 4 or the second fixing plate 5 from rubbing against the hydraulic valve body; a torsion plane 23 is opened on one side of the soft sleeve 9, and the torsion plane 23 is convenient for tightening the soft sleeve 9 by using a wrench.

[0031] Working principle: When the utility model is in use, first, the clamping jaw 7 is hinged to the hinge shaft 6. Then, the first positioning rod 8 and the second positioning rod 20 are respectively screwed to the first fixing plate 4 and the second fixing plate 5. Next, the soft sleeves 9 are respectively screwed to the first positioning rod 8 and the second positioning rod 20;

[0032] The hook 1 is connected to the overhead crane lifting appliance. After that, the soft sleeves 9 are respectively inserted into the hole positions on both sides of the hydraulic valve body. When the overhead crane lifts the hook 1, relying on the weight of the hydraulic valve body itself, the two clamping jaws 7 will inwardly tighten, so that the first positioning rod 8 and the second positioning rod 20 firmly buckle in the inner hole of the hydraulic valve body, playing a role in fixing the hydraulic valve body. And the first positioning rod 8 and the second positioning rod 20 are integrally distributed in a triangular shape, making the hydraulic valve body stable and not inclined; during the hoisting process, the soft sleeves 9 can prevent the fixture from causing friction and collision to the hydraulic valve body.

[0033] It can be understood that the above embodiments are merely exemplary embodiments adopted to illustrate the principle of the utility model. However, the utility model is not limited thereto. For those of ordinary skill in the art, various modifications and improvements can be made without departing from the spirit and essence of the utility model, and these modifications and improvements are also regarded as the protection scope of the utility model.

Claims

1. A clamp for lifting a hydraulic valve body, comprising a hook (1), a connecting rod (2), a clamp (3), a first fixing plate (4) and a second fixing plate (5); wherein: The hook (1) is provided with a hinge shaft (6), a clamp (3) is hingedly connected to the hinge shaft (6), and two clamping claws (7) of the clamp (3) are respectively provided with a first fixing plate (4) and a second fixing plate (5); the first fixing plate (4) is provided with a first positioning rod (8), and second positioning rods (20) are respectively provided at both ends of the second fixing plate (5); and soft sleeves (9) are respectively provided on the first positioning rod (8) and the second positioning rod (20).

2. The clamp for hoisting a hydraulic valve body according to claim 1 is characterized in that: A first connection hole (10) and a second connection hole (11) are respectively formed at one end of the two clamping jaws (7); the other ends of the two clamping jaws (7) are respectively fixed to the first fixing plate (4) and the second fixing plate (5) by welding.

3. The clamp for hoisting a hydraulic valve body according to claim 1 is characterized in that: The first fixing plate (4) is provided with a first connecting groove (12), and the second fixing plate (5) is provided with a second connecting groove (13).

4. The clamp for hoisting a hydraulic valve body according to claim 1 is characterized in that: The first fixing plate (4) is provided with a first step hole (14), and the small hole of the first step hole (14) is a threaded hole.

5. The clamp for hoisting a hydraulic valve body according to claim 1 is characterized in that: Second step holes (17) are respectively formed at both ends of the second fixing plate (5), and the small holes of the second step holes (17) are threaded holes.

6. The clamp for hoisting a hydraulic valve body according to claim 1 is characterized in that: The soft sleeve (9) has a screw hole (21) formed inside, a retaining ring (22) is provided at one end of the soft sleeve (9), and a torsion plane (23) is formed on one side of the soft sleeve (9).

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