Oil cylinder tensioning pull rod device for jaw machine

Abstract

The utility model discloses an oil cylinder tensioning pull rod device for a jaw machine, which comprises a spring pull rod, the spring pull rod penetrates through a spring seat, a spring and a spring top plate, the spring is positioned between the spring seat and the spring top plate, one end of the spring is propped against a spring fixing surface at the lower part of the spring seat, and the other end of the spring is propped against the inner side of the spring top plate. The spring pull rod on the outer side of the spring top plate is sleeved with a hollow oil cylinder, the spring pull rod is in threaded connection with a tightening nut for positioning the hollow oil cylinder, and the hollow oil cylinder comprises an oil injection hole; after a piston of the hollow oil cylinder extends outwards, the outer end of the piston abuts against the tightening nut. A spring fixing groove is formed in the inner side of the spring fixing surface, and one end part of the spring is sunk into the spring fixing groove; the device has the advantages that the structure is novel, the piston is ejected out through the hollow oil cylinder and hydraulic pressure, the purpose of compressing the spring is achieved, remote operation can be achieved, and convenience, rapidness, lightness and labor saving are achieved.

Description

Technical Field

[0001] The utility model relates to a component for a jaw machine, in particular to an oil cylinder tensioning rod device for a jaw machine. Background Art

[0002] The common spring compression on the tension rod of the existing jaw machine oil cylinder is achieved by manually twisting the nut to compress the spring, which is time-consuming, labor-intensive, unsafe, and inconvenient to realize remote operation and control. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide a tensioning rod device of an oil cylinder for a jaw machine in view of the deficiencies of the prior art.

[0004] In order to achieve the above purpose, the measures taken by the utility model are:

[0005] A tensioning rod device for a jaw machine oil cylinder comprises a spring rod, the spring rod passes through a spring seat, a spring and a spring top plate, the spring is located between the spring seat and the spring top plate, one end of the spring presses on a spring fixing surface at the lower part of the spring seat, and the other end of the spring presses on the inner side of the spring top plate, a hollow oil cylinder is sleeved on the spring rod outside the spring top plate, a tightening nut for positioning the hollow oil cylinder is threadedly connected to the spring rod, and the hollow oil cylinder comprises an oil filling hole;

[0006] After the piston of the hollow oil cylinder extends outward, the outer end of the piston presses against the tightening nut;

[0007] A spring fixing groove is provided on the inner side of the spring fixing surface, and one end of the spring is sunk into the spring fixing groove;

[0008] The inner side of the spring top plate is provided with a spring positioning column extending inward, and the spring positioning column extends into the through hole in the middle of the spring;

[0009] The tightening nut adopts a cool nut structure design.

[0010] The beneficial effects of the utility model are as follows: the structure is novel, a hollow oil cylinder is adopted, and hydraulic pressure is utilized to push the piston out to achieve the purpose of compressing the spring, remote operation can be realized, and the utility model is convenient, fast, light and labor-saving. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a schematic diagram of the external structure of the utility model.

[0012] Figure 2 It is a schematic diagram of the cross-sectional structure of the utility model. DETAILED DESCRIPTION

[0013] A cylinder tensioning rod device for a jaw machine includes a spring rod 1, wherein the spring rod 1 passes through a spring seat 2, a spring 3 and a spring top plate 4, wherein the spring 3 is located between the spring seat 2 and the spring top plate 4, wherein one end of the spring 3 presses against a spring fixing surface 201 at the lower portion of the spring seat 2, and the other end of the spring 3 presses against the inner side of the spring top plate 4, wherein a hollow cylinder 5 is sleeved on the spring rod 1 at the outer side of the spring top plate 4, wherein a tightening nut 6 for positioning the hollow cylinder 5 is threadedly connected to the spring rod 1, wherein the hollow cylinder 5 includes an oil filling hole 502, wherein one end of the hollow cylinder 5 presses against the spring top plate 4, and the other end presses against the tightening nut 6.

[0014] like Figure 1 and Figure 2 As shown, the oil filling hole 502 of the utility model is connected to the oil pressure device through the oil filling pipe, and the piston 501 on the hollow oil cylinder 5 is extended and retracted by supplying or pumping oil into the hollow oil cylinder 5, thereby compressing the spring 3. It is convenient to realize remote operation, which is convenient, fast, light and labor-saving.

[0015] After the piston 501 of the hollow oil cylinder 5 extends outward, the outer end of the piston 501 presses against the tightening nut 6 .

[0016] A spring fixing groove is provided on the inner side of the spring fixing surface 201 , and one end of the spring 3 is sunk into the spring fixing groove.

[0017] The inner side of the spring top plate 4 is provided with a spring positioning column extending inward, and the spring positioning column extends into the through hole in the middle of the spring 3. The spring 3 is limited and the working stability is improved.

[0018] The tightening nut 6 is designed with a smooth nut structure. In actual operation, the spring 3 can also be compressed by rotating the tightening nut 6.

Claims

1. A tensioning rod device for a jaw machine using a cylinder, comprising a spring rod (1), characterized in that: The spring pull rod (1) passes through the spring seat (2), the spring (3) and the spring top plate (4); the spring (3) is located between the spring seat (2) and the spring top plate (4); one end of the spring (3) presses against the spring fixing surface (201) at the bottom of the spring seat (2); the other end of the spring (3) presses against the inner side of the spring top plate (4); a hollow oil cylinder (5) is sleeved on the spring pull rod (1) outside the spring top plate (4); a tightening nut (6) for positioning the hollow oil cylinder (5) is threadedly connected to the spring pull rod (1); and the hollow oil cylinder (5) includes an oil filling hole (502).

2. The tension rod device for a jaw machine according to claim 1, characterized in that: After the piston (501) of the hollow oil cylinder (5) extends outward, the outer end of the piston (501) presses against the tightening nut (6).

3. A tensioning rod device for a jaw machine according to claim 1 or 2, characterized in that: A spring fixing groove is provided on the inner side of the spring fixing surface (201), and one end of the spring (3) is sunk into the spring fixing groove.

4. The tension rod device for a jaw machine according to claim 3, characterized in that: The inner side of the spring top plate (4) is provided with a spring positioning column extending inwards, and the spring positioning column extends into the through hole in the middle of the spring (3).

5. The tension rod device for a jaw machine according to claim 4, characterized in that: The tightening nut (6) adopts a cool nut structure design.

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