Hydraulic cylinder applied to translation type dumper

Abstract

The hydraulic cylinder comprises a cylinder body, a piston rod is installed at the output end of the cylinder body, a U-shaped plate is fixed to the end of the piston rod, protrusions are arranged at the two ends of the U-shaped plate, a fixing ring is fixed to the outer side of the cylinder body, and a limiting ring is arranged on the outer side of the fixing ring. The limiting ring is in sliding connection with the fixing ring, the U-shaped plate is in sliding connection with the limiting ring, a mounting frame is fixed to the outer side of the fixing ring, a threaded rod is movably connected to the inner wall of the mounting frame, the limiting ring is in threaded connection with the threaded rod, the threaded rod is coaxially provided with a rotating shaft, and the rotating shaft is in sliding connection with the threaded rod; and a knob is fixed at the end of the rotating shaft. The position of the limiting ring can be adjusted through the threaded rod, the rotating shaft and other parts, the limiting ring is used for limiting the stroke, exceeding the expected stroke, of the piston rod, the hydraulic cylinder is prevented from excessively extruding related equipment, and protection of the related equipment is facilitated.

Description

TECHNICAL FIELD

[0001] The utility model relates to hydraulic cylinder technical field especially relates to a kind of hydraulic cylinders applied to translational self-unloading vehicle. BACKGROUND

[0002] Translational self-unloading vehicle is equipped with not less than 3 groups of movable floor that can be independently reciprocated, and can be realized by the mutual movement of 3 groups or more groups of movable floor that can be independently moved, automatic horizontal unloading dumper truck in loading cargo in truck box, mainly by hydraulic transmission device and movable floor strip, hydraulic cylinder is the main execution element in movable floor hydraulic system, and the friction between movable floor at the bottom of truck box and loaded cargo is controlled by hydraulic pressure to realize cargo movement.

[0003] In the prior art, the hydraulic cylinder applied to translational self-unloading vehicle provided in CN220956258U includes a cylinder body, a first cavity and a second cavity are sequentially arranged in the cylinder body along its axis, a partition wall is arranged between the first cavity and the second cavity, a piston rod is slidably installed in each cavity, a rod cavity is formed between the rod body of the piston rod and the cavity, a rodless cavity is formed between the end of the piston rod and the partition wall, two independent oil pipes are arranged outside the cylinder body, the first oil pipe connects the first rod cavity and the second rodless cavity, and the second oil pipe connects the second rod cavity and the first rodless cavity.

[0004] However, the above-mentioned hydraulic cylinder will cause certain damage to the equipment when the piston rod exceeds the expected stroke during operation, as no corresponding limiting structure is arranged, the excessive extrusion of the hydraulic cylinder will affect the service life of the related equipment. UTILITY MODEL CONTENTS

[0005] The utility model aims at solving the shortcomings in the prior art and provides a hydraulic cylinder applied to translational self-unloading vehicle.

[0006] To achieve the above-mentioned purpose, the utility model adopts the following technical scheme:

[0007] A hydraulic cylinder applied to translational self-unloading vehicle, comprising a cylinder body, a piston rod is installed at the output end of the cylinder body, a U-shaped plate is fixed at the end of the piston rod, the U-shaped plate has protrusions at both ends, a fixed ring is fixed outside the cylinder body, a limiting ring is arranged outside the fixed ring, the limiting ring and the fixed ring are in sliding connection, and the U-shaped plate and the limiting ring are in sliding connection.

[0008] Preferably, a mounting frame is fixed outside the fixed ring, a threaded rod is movably connected to the inner wall of the mounting frame, and the limiting ring and the threaded rod are in threaded connection.

[0009] Preferably, the threaded rod is coaxially provided with a rotating shaft, and the rotating shaft is in sliding connection with the threaded rod, and the end of the rotating shaft is fixedly provided with a knob.

[0010] Preferably, the rotating shaft is coaxially fixedly provided with a snap ring, and one side of the mounting frame is provided with a clamping groove matched with the snap ring.

[0011] Preferably, the outer side of the rotating shaft is provided with a moving ring, one side of the moving ring is fixedly provided with a spring, and the other end of the spring is fixedly connected with the inner wall of the mounting frame.

[0012] Preferably, the moving ring is movably connected with the rotating shaft, the outer side of the rotating shaft is fixedly provided with a protruding block matched with the threaded rod.

[0013] The utility model has the following beneficial effects:

[0014] The position of the limiting ring can be adjusted through the threaded rod and the rotating shaft, the limiting ring is used for limiting the excessive stroke of the piston rod, the hydraulic cylinder is prevented from excessively extruding the related equipment, and the related equipment is protected. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is the whole structure schematic view of the utility model;

[0016] Figure 2 It is the structure schematic view of the utility model U-shaped plate;

[0017] Figure 3 It is the structure schematic view of the utility model fixed ring and limiting ring connection;

[0018] Figure 4 It is the structure schematic view of the utility model mounting frame section view inside;

[0019] Figure 5 It is Figure 4 It is the structure schematic view of the utility model rotating shaft and threaded rod connection section view;

[0020] Figure 6 It is the structure schematic view of the utility model rotating shaft and threaded rod connection section view;

[0021] Figure 7 It is the plane structure schematic view of the utility model moving ring and rotating shaft connection section view.

[0022] In the figure: 1, cylinder body; 2, piston rod; 3, U-shaped plate; 4, fixed ring; 5, limiting ring; 6, mounting frame; 7, threaded rod; 8, rotating shaft; 9, knob; 10, snap ring; 11, clamping groove; 12, moving ring; 13, spring; 14, protruding block. DETAILED DESCRIPTION

[0023] Clearly, the described embodiments are merely a part of the embodiments of the present application, but not all the embodiments.

[0024] In the description of the present application, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are merely for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0025] Referring to Figures 1-7 A hydraulic cylinder applied to a translation type self-unloading vehicle, comprising a cylinder body 1, a piston rod 2 is installed at the output end of the cylinder body 1, a U-shaped plate 3 is fixed at the end of the piston rod 2, and the U-shaped plate 3 has protrusions at both ends, a fixed ring 4 is fixed outside the cylinder body 1, a limiting ring 5 is arranged outside the fixed ring 4, the limiting ring 5 and the fixed ring 4 are in sliding connection, the U-shaped plate 3 and the limiting ring 5 are in sliding connection, and the piston rod 2 moves while the U-shaped plate 3 also moves, and due to the protrusions at both ends of the U-shaped plate 3, the movement distance of the U-shaped plate 3 is limited by the limiting ring 5, thereby avoiding the movement distance of the piston rod 2 exceeding the expectation.

[0026] A mounting frame 6 is fixed outside the fixed ring 4, a threaded rod 7 is movably connected to the inner wall of the mounting frame 6, the limiting ring 5 and the threaded rod 7 are in threaded connection, a rotating shaft 8 is coaxially arranged on the threaded rod 7, and the rotating shaft 8 and the threaded rod 7 are in sliding connection, a knob 9 is fixed at the end of the rotating shaft 8, a snap ring 10 is coaxially fixed to the rotating shaft 8, a clamping groove 11 is formed on one side of the mounting frame 6, and the clamping groove 11 is matched with the snap ring 10, a moving ring 12 is arranged outside the rotating shaft 8, a spring 13 is fixed to one side of the moving ring 12, and the other end of the spring 13 is fixedly connected to the inner wall of the mounting frame 6, the moving ring 12 and the rotating shaft 8 are movably connected, a protrusion 14 is fixed outside the rotating shaft 8, and the protrusion 14 is matched with the threaded rod 7, the position of the limiting ring 5 is adjusted by the threaded rod 7 and the rotating shaft 8 and other parts, thereby the maximum movement distance of the piston rod 2 can be changed to meet the needs of the user.

[0027] When the piston rod 2 moves forward, the U-shaped plate 3 fixed at the end of the piston rod 2 moves, and the movement of the U-shaped plate 3 and the piston rod 2 will not exceed the expectation due to the protrusions at the two ends of the U-shaped plate 3 and the limiting effect of the limiting ring 5, so that the piston rod 2 is prevented from excessively extruding the related equipment, when it is necessary to adjust the maximum moving distance of the piston rod 2, the knob 9 is pulled horizontally, when the clamping ring 10 is away from the clamping groove 11, the knob 9 is rotated, the rotating shaft 8 rotates, the protrusion 14 is fixed outside the rotating shaft 8, the threaded rod 7 rotates with the protrusion 14, the limiting ring 5 moves due to the threaded connection between the limiting ring 5 and the threaded rod 7 and the auxiliary effect of the mounting frame 6, so that the maximum moving distance of the piston rod 2 is changed, when the knob 9 is pulled, the spring 13 is extruded by the moving ring 12 and the mounting frame 6, the moving ring 12 does not affect the rotation of the rotating shaft 8 due to the movable connection between the moving ring 12 and the rotating shaft 8, when the limiting ring 5 moves to the specified position, the knob 9 is released, the clamping ring 10 returns to the clamping groove 11, and the rotation of the knob 9 is limited.

[0028] The above merely describes the preferred specific implementation of the present utility model, but the protection scope of the present utility model is not limited to this, any skilled person in the art can make equivalent replacement or change according to the technical scheme and the utility model concept of the present utility model within the technical range disclosed by the present utility model, which should be covered in the protection scope of the present utility model.

Claims

1. A hydraulic cylinder for use on a translational self-discharging vehicle, characterized by, The utility model provides a kind of piston rod locking device, including cylinder (1), the output end of the cylinder (1) is equipped with piston rod (2), the end of the piston rod (2) is fixed with U-shaped plate (3), and U-shaped plate (3) both ends have protrusion, the outside of the cylinder (1) is fixed with fixed ring (4), the outside of the fixed ring (4) is provided with limiting ring (5), the limiting ring (5) and fixed ring (4) are slidingly connected, and the U-shaped plate (3) and limiting ring (5) are slidingly connected.

2. A hydraulic cylinder for use on a translating dumper truck as defined in claim 1, wherein, The outside of the fixed ring (4) is fixed with mounting frame (6), the inner wall of the mounting frame (6) is movably connected with threaded rod (7), and the limiting ring (5) and threaded rod (7) are threadedly connected.

3. A hydraulic cylinder for use on a translating dumper truck as defined in claim 2, wherein, The threaded rod (7) is coaxially provided with rotating shaft (8), and the rotating shaft (8) and threaded rod (7) are slidingly connected, and the end of the rotating shaft (8) is fixed with knob (9).

4. A hydraulic cylinder for use on a translating dumper truck as defined in claim 3, wherein, The rotating shaft (8) is coaxially fixed with snap ring (10), one side of the mounting frame (6) is provided with clamping groove (11), and the clamping groove (11) is matched with the snap ring (10).

5. A hydraulic cylinder for use on a translating dumper truck as defined in claim 3, wherein, The outside of the rotating shaft (8) is provided with moving ring (12), one side of the moving ring (12) is fixed with spring (13), and the other end of the spring (13) is fixedly connected with the inner wall of the mounting frame (6).

6. A hydraulic cylinder for use on a translating dumper truck as defined in claim 5, wherein, The moving ring (12) and rotating shaft (8) are movably connected, the outside of the rotating shaft (8) is fixed with protruding block (14), and the protruding block (14) is matched with threaded rod (7).

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