A connection structure of front and rear ear seats of hydraulic shear translation cylinder

Abstract

The utility model discloses a front and rear ear seat connection structure of a hydraulic shear translation oil cylinder, which relates to the technical field of hydraulic shears, and comprises: an oil cylinder, a piston rod is arranged through the oil cylinder; a front earring is arranged at one end of the oil cylinder, and a bottom earring is arranged at the other end, and earring holes are arranged on the front earring and the bottom earring respectively; a front ear seat is sleeved on the outer side of the front earring, and a bottom ear seat is sleeved on the outer side of the bottom earring; ear seat holes are arranged on the front ear seat and the bottom ear seat respectively; the ear seat hole of the front ear seat is arranged correspondingly to the earring hole of the front earring, and the ear seat hole of the bottom ear seat is arranged correspondingly to the earring hole of the bottom earring; a pin is arranged between the ear seat hole and the earring hole, and a bushing is arranged on the pin. The structure reduces the wear of the pin, the earring hole and the ear seat hole, and avoids the hydraulic shear moving frame from being unable to move into place and requiring a large boring machine for repair; and the shaft sleeve is easy to replace, which simplifies the complex repair process and cost, improves the use stability and reliability of the hydraulic shear, and prolongs the service life of the oil cylinder.

Description

Technical Field

[0001] The utility model relates to the technical field of hydraulic shears, in particular to a front and rear ear seat connection structure of a hydraulic shear translation oil cylinder. Background Art

[0002] Hydraulic shears are widely used in continuous casting of square billets. The connections between the front and rear translation cylinders and the mobile frame and the guide frame all adopt welded earring structures. The hydraulic shears will move and shear for a long time during use. After a period of use, gaps will occur between the pin shaft and the earring holes and the ear seat holes, causing the pin shaft to wear the circular holes of the earrings into elliptical holes, resulting in the hydraulic shears mobile frame being unable to move into place, seriously affecting the use of the hydraulic shears. Surfacing welding is required before processing, especially the mobile frame and the guide frame require a large mobile boring machine for processing, which takes a long processing time and is complicated in the repair process, affecting work continuity; and the earring holes on the cylinder will cause deformation of the cylinder barrel and piston rod after surfacing welding, shortening the service life of the cylinder. Utility Model Content

[0003] The purpose of the utility model is to provide a front and rear ear seat connection structure of a hydraulic shear translation cylinder to solve at least one aspect of the problems and defects raised in the above-mentioned background technology.

[0004] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0005] A front and rear ear seat connection structure of a hydraulic shear translation cylinder, comprising:

[0006] An oil cylinder, wherein a piston rod is provided through the oil cylinder;

[0007] A front earring is provided at one end of the oil cylinder, and a bottom earring is provided at the other end, and earring holes are provided on the front earring and the bottom earring respectively;

[0008] The front earring is provided with a front ear seat on the outside, and the bottom earring is provided with a bottom ear seat on the outside;

[0009] The front ear seat and the bottom ear seat are respectively provided with ear seat holes;

[0010] The ear seat hole of the front ear seat is arranged correspondingly to the earring hole of the front earring, and the ear seat hole of the bottom ear seat is arranged correspondingly to the earring hole of the bottom earring;

[0011] A pin is arranged between the ear seat hole and the earring hole, and a bushing is arranged on the pin.

[0012] The front and rear ear seat connection structure of the hydraulic shear translation cylinder according to this solution has at least the following technical effects:

[0013] The front and rear ear seat connection structure of the hydraulic shear translation cylinder is provided with a pin shaft between the ear seat hole and the ear ring hole, and a bushing is provided on the pin shaft, so that the pin shaft, the ear ring hole and the ear seat hole will not be in direct contact, and the wear of the pin shaft, the ear ring hole and the ear seat hole is effectively reduced, thereby reducing the gap between the connecting parts, avoiding the gap caused by wear that causes the hydraulic shear moving frame to be unable to move into place, and requiring the large boring machine to be moved for maintenance; at the same time, it is avoided that the cylinder barrel and the piston rod of the cylinder are deformed after the ear ring hole is surfacing welded; and the sleeve is easy to replace, which greatly simplifies the complicated repair process and repair cost, improves the use stability and reliability of the hydraulic shear, and extends the service life of the cylinder.

[0014] As a further solution of the utility model: the outer diameter of the bushing is larger than the diameters of the earring hole and the ear seat hole.

[0015] Since the outer diameter of the bushing is larger than the aperture of the earring hole and the ear seat hole, the bushing can be more firmly engaged in the earring hole and the ear seat hole, avoiding gaps between the pin shaft and the earring hole and the ear seat hole, effectively reducing the shaking and vibration of the connecting component during the operation of the hydraulic shear, reducing friction and wear, further improving the stability and load-bearing capacity of the connecting structure, and ensuring the reliability of the hydraulic shear mobile frame during operation.

[0016] As a further solution of the utility model: the bushing material is selected to be polymer.

[0017] Since the bushing material is polymer, the polymer material has good wear resistance and corrosion resistance, which can effectively reduce the wear of the bushing. The polymer bushing is easy to process and has a low manufacturing cost, so the bushing can be replaced frequently to ensure the good use condition of the connection structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to facilitate understanding by those skilled in the art, the present invention is further described below in conjunction with the accompanying drawings.

[0019] Figure 1 The present invention is a schematic diagram of the front and rear ear seat connection structure of a hydraulic shear translation cylinder.

[0020] Reference numerals:

[0021] 101. Oil cylinder; 102. Piston rod; 103. Front earring; 104. Bottom earring; 105. Front ear seat; 106. Bottom ear seat; 107. Pin; 108. Bushing. DETAILED DESCRIPTION

[0022] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0023] In the description of the present invention, it should be understood that descriptions involving orientation, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0024] In the description of the present utility model, "several" means one or more, "more" means more than two, "greater than", "less than", "exceed" etc. are understood to exclude the number itself, and "above", "below", "within" etc. are understood to include the number itself. If there is a description of "first" or "second", it is only used for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0025] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0026] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the utility model and are not used to limit the utility model, that is, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. The components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0027] Therefore, the following detailed description of the embodiments of the utility model provided in the accompanying drawings is not intended to limit the scope of the utility model claimed for protection, but merely represents selected embodiments of the utility model. Based on the embodiments of the utility model, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the utility model.

[0028] like Figure 1The embodiment of the utility model shown is a front and rear ear seat connection structure of a hydraulic shear translation cylinder, comprising: a cylinder 101, a piston rod 102 is arranged through the cylinder 101; a front earring 103 is arranged at one end of the cylinder 101, and a bottom earring 104 is arranged at the other end, and earring holes are respectively arranged on the front earring 103 and the bottom earring 104; a front ear seat 105 is sleeved on the outer side of the front earring 103, and a bottom ear seat 106 is sleeved on the outer side of the bottom earring 104; ear seat holes are respectively arranged on the front ear seat 105 and the bottom ear seat 106; the ear seat hole of the front ear seat 105 is arranged corresponding to the earring hole of the front earring 103, and the ear seat hole of the bottom ear seat 106 is arranged corresponding to the earring hole of the bottom earring 104; a pin 107 is arranged between the ear seat hole and the earring hole, and a bushing 108 is arranged on the pin 107.

[0029] Specifically, the front and rear ear seat connection structure of the hydraulic shear translation cylinder is provided with a pin shaft 107 between the ear seat hole and the earring hole, and a bushing 108 is provided on the pin shaft 107, so that the pin shaft 107 and the earring hole and the ear seat hole will not be in direct contact, thereby effectively reducing the wear of the pin shaft 107 and the earring hole and the ear seat hole, thereby reducing the gap between the connecting parts, avoiding the gap caused by wear that causes the hydraulic shear moving frame to be unable to move into place, and requiring the large boring machine to be moved for maintenance; at the same time, it avoids deformation of the cylinder barrel and piston rod 102 of the cylinder 101 after the earring hole is surfacing welded; and the sleeve 107 is easy to replace, which greatly simplifies the complicated repair process and repair cost, improves the stability and reliability of the hydraulic shear, and extends the service life of the cylinder 101.

[0030] According to an embodiment of the present invention, the outer diameter of the bushing 108 is larger than the diameters of the earring hole and the ear seat hole.

[0031] Specifically, since the outer diameter of the bushing 107 is larger than the aperture of the earring hole and the ear seat hole, the bushing 107 can be more firmly engaged in the earring hole and the ear seat hole, avoiding the generation of a gap between the pin shaft 107 and the earring hole and the ear seat hole, effectively reducing the shaking and vibration of the connecting component during the operation of the hydraulic shear, reducing friction and wear, further improving the stability and load-bearing capacity of the connecting structure, and ensuring the reliability of the hydraulic shear moving frame during operation.

[0032] It should also be noted that the material of the bushing 108 is polymer.

[0033] Specifically, since the material of the bushing 107 is polymer, the polymer material has good wear resistance and corrosion resistance, which can effectively reduce the wear of the bushing 107, and the polymer bushing 107 is easy to process and has a low manufacturing cost, so that the bushing 107 can be replaced frequently to ensure the good use status of the connection structure.

[0034] The above contents are merely examples and explanations of the structure of the utility model. The technicians in this technical field may make various modifications or additions to the specific embodiments described or replace them in a similar manner. As long as they do not deviate from the structure of the utility model or exceed the scope defined in the claims, they should all fall within the protection scope of the utility model.

Claims

1. A front and rear ear seat connection structure of a hydraulic shear translation cylinder, characterized in that: include: An oil cylinder (101), wherein a piston rod (102) is provided through the oil cylinder (101); One end of the oil cylinder (101) is provided with a front earring (103), and the other end is provided with a bottom earring (104), and the front earring (103) and the bottom earring (104) are respectively provided with earring holes; The front ear ring (103) is sleeved with a front ear seat (105) on the outside, and the bottom ear ring (104) is sleeved with a bottom ear seat (106) on the outside; The front ear seat (105) and the bottom ear seat (106) are respectively provided with ear seat holes; The ear seat hole of the front ear seat (105) is arranged correspondingly to the ear ring hole of the front ear ring (103), and the ear seat hole of the bottom ear seat (106) is arranged correspondingly to the ear ring hole of the bottom ear ring (104); A pin shaft (107) is arranged between the ear seat hole and the earring hole, and a bushing (108) is arranged on the pin shaft (107).

2. The front and rear ear seat connection structure of the hydraulic shear translation cylinder according to claim 1 is characterized in that: The outer diameter of the bushing (108) is larger than the diameters of the earring hole and the ear seat hole.

3. The front and rear ear seat connection structure of the hydraulic shear translation cylinder according to claim 1 is characterized in that: The material of the bushing (108) is polymer.

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