Plunger type hydraulic cylinder

Abstract

The utility model provides a plunger type hydraulic cylinder, which belongs to the technical field of hydraulic equipment, and comprises a fixed table, a supporting assembly and a sliding block, the supporting assembly is arranged on the outer wall of the fixed table, the supporting assembly comprises a sliding frame, a supporting frame, two hanging rings, a sliding groove and a sliding block, the sliding frame is fixedly arranged on the top of the outer wall of the fixed table, the sliding groove is formed in the top of the outer wall of the sliding frame, and the sliding block is arranged on the supporting frame. The sliding block is slidably arranged in the sliding groove, one hanging ring is fixedly arranged at the bottom of the outer wall of the sliding block, the other hanging ring is clamped to the outer wall of the hanging ring, and the supporting frame is fixedly arranged on the outer walls of the hanging rings. Deflection and swing of the piston rod in the movement process can be remarkably reduced by supporting the piston rod through the supporting assembly, it is ensured that the piston rod conducts linear movement along the preset axis, additional friction and abrasion caused by deflection and swing can be reduced through the stability, and therefore the service life of the hydraulic cylinder is prolonged; in addition, a gap between the piston and the cylinder body can be kept uniform, so that friction force and abrasion are reduced.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of hydraulic equipment, and particularly relates to a plunger type hydraulic cylinder. BACKGROUND

[0002] As one of indispensable core elements in a hydraulic transmission system, the plunger type hydraulic cylinder plays a vital role in industrial automation, heavy machinery, aerospace and even daily life equipment, and is mainly composed of a cylinder body, a plunger, a sealing device, a guide mechanism, oil inlet and outlet ports and accessories, and is widely applied to engineering machinery such as excavators, loaders and cranes to realize various movements such as lifting, stretching and grabbing, and can realize rapid movement and positioning of a tool holder in equipment such as numerical control machine tools and heavy machine tools, thereby improving machining efficiency.

[0003] However, if no support assembly is installed outside the piston rod during use of the existing plunger type hydraulic cylinder, the following problems may occur: the piston rod without support may deviate from the axis during movement, and the deviation and swing may cause uneven gap between the piston rod and the cylinder body, increase friction and wear, and even cause leakage. UTILITY MODEL CONTENTS

[0004] The utility model aims at providing a plunger type hydraulic cylinder to solve the problems in the background art.

[0005] A plunger type hydraulic cylinder comprises,

[0006] A fixed table;

[0007] A support assembly is arranged on the outer wall of the fixed table, wherein the support assembly comprises a sliding frame, a support frame, two hanging rings, a sliding slot and a sliding block, the sliding frame is fixedly arranged on the top of the outer wall of the fixed table, the sliding slot is arranged on the top of the outer wall of the sliding frame, the sliding block is slidingly arranged in the sliding slot, one of the hanging rings is fixedly arranged on the bottom of the outer wall of the sliding block, and the other hanging ring is connected to the outer wall of the hanging ring, and the support frame is fixedly arranged on the outer wall of the hanging ring.

[0008] Further, the outer wall top of the fixed table is fixedly provided with a first fixing seat.

[0009] Further, the outer wall top of the fixed table is fixedly provided with a second fixing seat.

[0010] Further, the outer wall of the first fixing seat and the second fixing seat is fixedly provided with a cylinder barrel.

[0011] Further, the inside of the cylinder barrel is slidably provided with a piston rod, and the piston rod is inserted into the inside of the supporting frame.

[0012] Further, the outer wall bottom of the sliding block is rotatably provided with a ball, and the outer wall of the first fixing seat is provided with a plurality of bolt holes.

[0013] Compared with the prior art, the utility model has the advantages that:

[0014] The supporting assembly can significantly reduce the deflection and swing of the piston rod during movement, ensure the linear movement of the piston rod along the predetermined axis, and help reduce the additional friction and wear caused by the deflection and swing, thereby prolonging the service life of the hydraulic cylinder. BRIEF DESCRIPTION OF DRAWINGS

[0015] The accompanying drawings are included to provide a further understanding of the utility model, and constitute a part of the specification, and are used to explain the utility model together with embodiments of the utility model, and do not constitute the limitation to the utility model.

[0016] Figure 1 It is the first perspective view of the utility model;

[0017] Figure 2 It is the second perspective view of the utility model Figure 1 It is the enlarged view of A in the middle;

[0018] Figure 3 It is the second perspective view of the utility model;

[0019] Figure 4 It is the third perspective view of the utility model.

[0020] In the drawing: 1, fixed table;2, first fixing seat;3, cylinder barrel;4, second fixing seat;5, piston rod;6, sliding frame;7, supporting frame;8, hanging ring;9, sliding groove;10, sliding block. DETAILED DESCRIPTION

[0021] With reference to the drawings of the embodiments of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the present application.

[0022] In the description of the present application, it should be noted that the terms "upper", "lower", "inner", "outer", "top / bottom end" and the like indicate the orientation or positional relationship shown in the drawings, and are only 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. In addition, the terms "first", "second" are only for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0023] In the description of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms "mounting", "provided with", "sleeved / connected", "connected" and the like should be broadly understood, for example, "connected" can be fixedly connected, or can be detachably connected, or integrally connected; can be mechanically connected, or electrically connected; can be directly connected, or indirectly connected through an intermediate medium; can be internal communication of two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0024] Please refer to Figures 1-4 The technical solutions provided by the present embodiment are as follows:

[0025] A plunger type hydraulic cylinder, comprising,

[0026] A fixed table 1;

[0027] A support assembly is arranged at the outer wall of the fixed table 1, wherein the support assembly comprises a sliding frame 6, a support frame 7, two hanging rings 8, a sliding groove 9 and a sliding block 10, the sliding frame 6 is fixedly arranged at the top of the outer wall of the fixed table 1, the sliding groove 9 is opened at the top of the outer wall of the sliding frame 6, the sliding block 10 is slidingly arranged in the sliding groove 9, one of the hanging rings 8 is fixedly arranged at the bottom of the outer wall of the sliding block 10, and the other hanging ring 8 is clamped on the outer wall of the hanging ring 8, and the support frame 7 is fixedly arranged on the outer wall of the hanging ring 8.

[0028] In the embodiment of the utility model, the support assembly supporting the piston rod can significantly reduce the deflection and swing in the movement process, ensure the linear movement of the piston rod along the predetermined axis, and the stability helps to reduce the additional friction and wear caused by the deflection and swing, thereby prolonging the service life of the hydraulic cylinder, and the gap between the piston rod and the cylinder body can be kept uniform, thereby reducing the friction and wear, the first fixed seat 2 and the second fixed seat 4 are fixedly installed on the outer wall of the cylinder barrel 3, the stability of the whole hydraulic cylinder is strengthened, in addition, the support frame 7 is installed on the outer wall of the piston rod 5, the piston rod 5 can not deviate from the axis due to gravity in the movement process, the outer wall of the support frame 7 is provided with two hanging rings 8 and sliding blocks 10, and the outer wall top of the sliding frame 6 is provided with a sliding groove 9, so that the whole support assembly can move and change along with the movement of the piston rod 5.

[0029] Specifically, the first fixed seat 2 is fixedly arranged on the top of the outer wall of the fixed table 1.

[0030] In the embodiment of the utility model, the first fixed seat 2 is fixedly arranged on the top of the outer wall of the fixed table 1, and the stability of the bottom of the cylinder barrel 3 can be enhanced.

[0031] Specifically, the second fixed seat 4 is fixedly arranged on the top of the outer wall of the fixed table 1.

[0032] In the embodiment of the utility model, the second fixed seat 4 is fixedly arranged on the top of the outer wall of the fixed table 1, and the whole cylinder barrel 3 can be reinforced and stabilized.

[0033] Specifically, the cylinder barrel 3 is fixedly arranged on the outer wall of the first fixed seat 2 and the second fixed seat 4.

[0034] In the embodiment of the utility model, the stability of the whole cylinder barrel 3 is ensured.

[0035] Specifically, the piston rod 5 is slidably arranged in the cylinder barrel 3, and the piston rod 5 is inserted into the support frame 7.

[0036] In the embodiment of the utility model, the piston rod 5 is inserted into the support frame 7, so that the piston rod 5 has a fulcrum in the movement process, and the axis is prevented from deviating due to gravity.

[0037] Specifically, the outer wall bottom of the sliding block 10 is rotatably provided with a ball, and the outer wall of the first fixed seat 2 is provided with a plurality of bolt holes.

[0038] In the embodiment of the utility model, the outer wall bottom of the sliding block 10 is rotatably provided with a ball, and the friction of the sliding block 10 in the movement process is reduced.

[0039] Working principle:

[0040] The first fixing seat 2 and the second fixing seat 4 are fixedly installed on the outer wall of the cylinder barrel 3, the stability of the whole hydraulic cylinder is enhanced, the support frame 7 is installed on the outer wall of the piston rod 5, the piston rod 5 cannot deviate from the axis due to gravity during movement, the outer wall of the support frame 7 is provided with two hanging rings 8 and a sliding block 10, the outer wall of the sliding frame 6 is provided with a sliding groove 9 at the top, and the whole support assembly can move and change along with the movement of the piston rod 5.

[0041] Finally, it should be noted that: the above only for the preferred embodiments of the present application, and is not intended to limit the present application, although the foregoing detailed description of the present application is made with reference to the foregoing embodiments, for those skilled in the art, it still can be modified, or part of the technical features of the equivalent replacement. Any modification, equivalent replacement, improvement, etc. within the spirit and principles of the present application, should be included in the scope of protection of the present application.

Claims

1. A hydraulic cylinder of the piston type, characterized in that, Including, The fixed platform (1) is provided with a support assembly on the outer wall thereof, wherein the support assembly comprises a sliding frame (6), a support frame (7), two hanging rings (8), a sliding groove (9) and a sliding block (10). The outer wall top of the fixed platform (1) is fixedly provided with a first fixing seat (2).

2. A plunger hydraulic cylinder according to claim 1, characterized in that The outer wall top of the fixed platform (1) is fixedly provided with a second fixing seat (4).

3. A plunger hydraulic cylinder according to claim 2, characterized in that The outer wall of the first fixing seat (2) and the second fixing seat (4) is fixedly provided with a cylinder barrel (3).

4. A plunger hydraulic cylinder according to claim 3, characterized in that The inner part of the cylinder barrel (3) is slidably provided with a piston rod (5), and the piston rod (5) is inserted into the inner part of the support frame (7).

5. A plunger hydraulic cylinder according to claim 4, characterized in that The outer wall bottom of the sliding block (10) is rotatably provided with a ball, and the outer wall of the first fixing seat (2) is provided with a plurality of bolt holes.

6. A plunger hydraulic cylinder according to claim 5, characterized in that ​

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