Oil cylinder hinge seat

Abstract

The utility model provides an oil cylinder hinge seat which can adapt to a slurry environment, is convenient to disassemble, assemble and maintain, and further can be suitable for a vertical shaft heading machine. The oil cylinder hinge seat comprises a hinge seat main body, a pin shaft, an upper sleeve, a lower sleeve and a gland, a groove is formed in one side face of the hinge seat body to form an up-and-down clamping and blocking structure used for allowing an oil cylinder lug to be inserted. The upper layer of the groove side of the hinge seat main body is provided with a hinge seat upper hole, and the lower layer is correspondingly provided with a coaxial hinge seat lower hole; the pin shaft sequentially penetrates through the hinge seat upper hole, the oil cylinder lug seat and the hinge seat lower hole to connect the oil cylinder lug seat with the hinge seat main body; the upper sleeve is of a ring structure with a flange, a sleeve part of the upper sleeve is sleeved between the hinge seat upper hole and the pin shaft, and a flange part is positioned on the upper surface of a hinge seat main body; the lower sleeve is of a circular ring structure and is mounted between a lower hole of the hinge seat and the pin shaft; and the gland is arranged above the flange part of the upper sleeve and the pin shaft, and is connected with the flange part of the upper sleeve and the hinge seat main body through fixing bolts.

Description

TECHNICAL FIELD

[0001] The utility model relates to an oil cylinder hinged seat, in particular to an oil cylinder hinged seat for a shaft sinking machine, belonging to the technical field of shaft sinking construction equipment. BACKGROUND

[0002] At present, when a shaft is excavated, a sunk well type envelope forming shaft sinking machine as shown in the drawings can be used. Figure 1 The shaft sinking machine relies on the self weight of the equipment to pressurize the cutter, adopts the envelope forming mode of multi-cutter disc self rotation + revolution to realize full face excavation, and realizes synchronous excavation and sinking of the well by combining the automatic sunk well and mud wall protection process, so that non-dewatering construction is realized, and the advantages of safety, rapidness, small construction land occupation and small influence on the surrounding environment are achieved, and the sunk well type envelope forming shaft sinking machine is more and more preferred in underground space development.

[0003] When the sunk well type envelope forming shaft sinking machine is constructed, the cutter disc revolution movement relies on four revolution oil cylinders 13 to form a connecting rod mechanism, drives the revolution frame 12 to realize rotary movement, and thus the revolution oil cylinder 13 needs to be connected with the revolution frame 12 through the oil cylinder hinged seat. The whole excavation system operates in the underwater mud environment, and several revolution oil cylinders and internal stroke sensors often malfunction, and need to be disassembled for maintenance after the malfunction. The conventional oil cylinder hinged seat works in this environment for a long time, is prone to rust and deformation, and is difficult to disassemble. In addition, the construction environment in the well is poor, and it is very difficult to disassemble the revolution oil cylinder in the well, which not only is time-consuming and laborious, but also brings many risk factors to the underground construction operation. UTILITY MODEL CONTENTS

[0004] Therefore, the utility model provides an oil cylinder hinged seat, the cylinder hinged seat with the structural form can adapt to the mud environment, is convenient to disassemble and maintain, and can be applied to the shaft sinking machine.

[0005] The utility model provides a specific scheme as follows: an oil cylinder hinged seat, comprising a hinged seat main body, a pin shaft, an upper sleeve, a lower sleeve and a gland;

[0006] One side of the hinged seat main body has a groove to form an upper and lower clamping structure for inserting the oil cylinder ear seat;

[0007] The upper layer of the groove side of the hinged seat main body is provided with a hinged seat upper hole, and the lower layer is provided with a coaxial hinged seat lower hole; the pin shaft passes through the hinged seat upper hole, the oil cylinder ear seat and the hinged seat lower hole in sequence and connects the oil cylinder ear seat and the hinged seat main body;

[0008] The upper sleeve is a circular ring structure with a flange, the sleeve part of the upper sleeve is sleeved between the hinged seat upper hole and the pin shaft, and the flange part is located on the upper surface of the hinged seat main body;

[0009] The lower sleeve is a circular ring structure, which is installed between the lower hole of the hinged seat and the pin shaft;

[0010] The gland is installed above the flange part of the upper sleeve and the pin shaft, and is connected with the flange part of the upper sleeve and the main body of the hinged seat through fixing bolts.

[0011] As a preferred mode of the utility model, the oil cylinder ear seat upper end surface and the hinged seat main body and the oil cylinder ear seat lower end surface and the hinged seat main body are both provided with a partition ring.

[0012] As a preferred mode of the utility model, the pin shaft is made of alloy steel, and the surface is plated with hard chromium; the upper sleeve and the lower sleeve are both made of copper alloy.

[0013] As a preferred mode of the utility model, the inner ring surface of the upper sleeve and the lower sleeve is embedded with graphene, so that it has self-lubricating performance.

[0014] As a preferred mode of the utility model, the pin shaft is a stepped structure with a large upper part and a small lower part.

[0015] As a preferred mode of the utility model, a pin pulling tool is further provided, which is used for dismounting the oil cylinder ear seat from the hinged seat main body;

[0016] The pin pulling tool comprises a pin pulling frame and a pin pulling bolt.

[0017] A threaded hole for cooperating with the pin pulling bolt is formed in the center of the upper end surface of the pin shaft;

[0018] The pin pulling frame is a circular hollow structure, and one end of the pin pulling frame has a through hole for allowing the pin pulling bolt to pass through; the threaded part of the pin pulling bolt cooperates with the threaded hole in the center of the upper end surface of the pin shaft after passing through the pin pulling frame; a gasket is installed between the nut of the pin pulling bolt and the pin pulling frame.

[0019] Advantages:

[0020] (1) In the oil cylinder hinged seat, the pin shaft and the hinged seat main body are in a split type, so that dismounting and maintenance are more convenient and fast; the gland is arranged to prevent dirt and other impurities from entering between the pin shaft and the upper sleeve, and also prevents the pin shaft from moving out of the upper sleeve during use.

[0021] (2) In the oil cylinder hinged seat, the upper sleeve and the lower sleeve are made of copper alloy, and the surface of the pin shaft is plated with chromium, which can effectively avoid dismounting due to rust in a mud environment.

[0022] (3) In the oil cylinder hinged seat, the inner ring surface of the upper sleeve and the lower sleeve is embedded with graphene, which has self-lubricating function and is suitable for long-term use in a mud environment.

[0023] (4) The oil cylinder hinged seat of the utility model has matched pin pulling tools, so that the disassembly and assembly are simple, time-saving and labor-saving, and the disassembly and assembly maintenance is convenient. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 A structure diagram of a shaft sinking type envelope forming shaft boring machine mentioned in the background art;

[0025] Figure 2 A structure diagram of an oil cylinder hinged seat of the utility model;

[0026] Figure 3 A structure diagram of a pin shaft;

[0027] Figure 4 A structure diagram of a pin pulling frame;

[0028] Wherein: 1-hinged seat body; 2-pin shaft; 3-upper sleeve; 4-separation ring; 5-lower sleeve; 6-fixing bolt; 7-pressing cover; 8-pin pulling frame; 9-pin pulling bolt; 10-gasket; 11-boring machine frame; 12-rotary frame; 121-rotary frame boss; 13-rotary oil cylinder; 131-oil cylinder ear seat; 14-winch. DETAILED DESCRIPTION

[0029] The utility model will be further explained in detail in combination with the drawings and examples.

[0030] Example 1:

[0031] The utility model provides a kind of oil cylinder hinged seat structure for shaft boring machine, which is installed between the boring machine frame 11 and the rotary frame boss 121 of the shaft boring machine shown in the figure, and the oil cylinder hinged seat structure provided in the example can adapt to mud environment, and disassembly and assembly maintenance is convenient. Figure 1 As shown in the figure, the oil cylinder hinged seat includes: hinged seat body 1, pin shaft 2, upper sleeve 3, separation ring 4, lower sleeve 5, fixing bolt 6 and pressing cover 7.

[0032] Figure 2 Wherein hinged seat body 1 is welded on the upper surface of rotary frame boss 121;One side of hinged seat body 1 has recess, for the insertion of oil cylinder ear seat 131 of rotary oil cylinder 13;The recess makes hinged seat body 1 form upper and lower clamping structure on the side, hinged seat upper hole is arranged in upper layer, coaxial hinged seat lower hole is arranged in lower layer;Pin shaft 2 passes through hinged seat upper hole, oil cylinder ear seat 131 and hinged seat lower hole in turn, connects oil cylinder ear seat 131 and hinged seat body 1, and then the thrust of rotary oil cylinder 13 is transmitted to hinged seat body 1 and rotary frame 12.

[0033] Wherein hinged seat body 1 is welded on the upper surface of rotary frame boss 121;One side of hinged seat body 1 has recess, for the insertion of oil cylinder ear seat 131 of rotary oil cylinder 13;The recess makes hinged seat body 1 form upper and lower clamping structure on the side, hinged seat upper hole is arranged in upper layer, coaxial hinged seat lower hole is arranged in lower layer;Pin shaft 2 passes through hinged seat upper hole, oil cylinder ear seat 131 and hinged seat lower hole in turn, connects oil cylinder ear seat 131 and hinged seat body 1, and then the thrust of rotary oil cylinder 13 is transmitted to hinged seat body 1 and rotary frame 12.

[0034] ​As an example, the pin shaft 2 is made of alloy steel (such as 42CrMo), with a hard chromium plating on the surface, a thickness of 60-70 μm, a hardness of 800-900 HV, and better wear resistance and rust resistance after plating, thereby meeting the use in the mud environment.

[0035] As shown in Figure 3 The pin shaft 2 has a stepped structure with a large upper part and a small lower part, and is matched with the upper sleeve 3 and the lower sleeve 5, facilitating disassembly and assembly. Specifically, the pin shaft 2 is divided into three stepped sections along the axial direction from top to bottom. The first stepped section (φ75 mm) is used to cooperate with the upper sleeve 3, the second stepped section (φ70 mm) is used to cooperate with the cylinder ear seat 131, and the third stepped section (φ65 mm) is used to cooperate with the lower sleeve 5.

[0036] The upper sleeve 3 has a flange and is in the form of a circular ring, including a sleeve part and a flange part. The sleeve part is sleeved between the upper hole of the hinge seat and the pin shaft 2, and the flange part is located on the upper surface of the hinge seat body 1. The upper sleeve 3 is in transition fit with the upper hole of the hinge seat and is in clearance fit with the pin shaft 2, facilitating disassembly and assembly in the later stage.

[0037] The lower sleeve 5 is in the form of a circular ring and is installed between the lower hole of the hinge seat and the pin shaft 2. The lower sleeve 5 is also in transition fit with the lower hole of the hinge seat and is in clearance fit with the pin shaft 2.

[0038] As an example, the upper sleeve 3 and the lower sleeve 5 are both made of copper alloy, with high yield strength (the yield strength of copper alloy is ≥400 MPa), which can meet the torque transmission requirement and will not rust due to long-term underwater contact with the pin shaft 2. The inner ring surface of the upper sleeve 3 and the lower sleeve 5 is embedded with graphene, which has self-lubricating function and is suitable for long-term use in the mud environment.

[0039] The spacer ring 4 is arranged between the cylinder ear seat 131 and the hinge seat body 1. There are two spacer rings 4, which are respectively arranged between the upper end surface of the cylinder ear seat 131 and the hinge seat body 1 and between the lower end surface of the cylinder ear seat 131 and the hinge seat body 1. The spacer ring 4 is used to limit the up-down swing of the cylinder ear seat 131 in use.

[0040] In order to facilitate the pulling out of the pin shaft 2, a threaded hole for cooperating with the pin pulling tool is processed on the center of the upper end surface of the pin shaft 2.

[0041] The gland 7 is installed above the flange part of the upper sleeve 3 and the pin shaft 2, and can block the threaded hole on the upper end surface of the pin shaft 2. The gland 7 is connected with the flange part of the upper sleeve 3 and the hinge seat body 1 through the fixing bolt 6. The gland 7 is arranged to prevent the entry of sand and other impurities into the space between the pin shaft 2 and the upper sleeve 3, and also prevents the pin shaft 2 from escaping from the upper sleeve 3 in use.

[0042] The oil cylinder hinge seat is assembled by first putting the upper sleeve 3 and the lower sleeve 5 into the hinge seat upper hole and the hinge seat lower hole of the hinge seat body 1 respectively, the upper sleeve 3 is in transition fit with the hinge seat upper hole, and the lower sleeve 5 is in transition fit with the hinge seat lower hole; during installation, the upper sleeve 3 and the lower sleeve 5 are put in place and then are integrally installed by symmetrical knocking or a pressing plate. The upper sleeve 3 can also be installed by being pressed in little by little with the help of the bolt 6. Then, the oil cylinder ear seat 131 is moved to be between the upper and lower clamping blocks of the hinge seat body 1, and the hole center of the oil cylinder ear seat 131 is aligned with the hole center of the hinge seat 1. Then, one spacer ring 4 is placed on each of the upper and lower parts of the oil cylinder ear seat 131, and then the pin shaft 2 is inserted into the upper sleeve 3, the spacer ring 4, the oil cylinder ear seat 131 and the lower sleeve 5 in sequence. The spherical hinge of the oil cylinder ear seat 131 can rotate, so the pin shaft 2 must be aligned when being inserted, so as to be smoothly inserted. After installation, the lower end of the pin shaft 2 is in contact with the lower sleeve 3, and the upper end of the pin shaft 2 is in contact with the upper sleeve 5, the insertion resistance is small, and the installation is convenient. After the pin shaft 2 is installed, the gland 7 is installed, and the bolt 6 is tightened, so as to prevent the pin shaft 2 from moving out and prevent dirt and other impurities from entering.

[0043] The oil cylinder hinge seat adopts a split structure (i.e. the pin shaft 2 and the hinge seat body 1 are in a split structure), and the pin shaft 2 has a stepped structure, so that the installation and removal are more convenient and faster; the upper sleeve 3 and the lower sleeve 5 are made of copper alloy material, and the surface of the pin shaft is chrome-plated, so that the structure cannot be rusted and cannot be disassembled in a mud environment. The oil cylinder hinge seat structure can fully meet the use requirements in a mud environment.

[0044] Embodiment 2

[0045] On the basis of the above-mentioned embodiment 1, further, the hinge seat further comprises a pin pulling tool used in conjunction, for realizing the disassembly of the revolving oil cylinder 13, i.e. the oil cylinder ear seat 131 of the revolving oil cylinder 13 is disassembled from the oil cylinder hinge seat.

[0046] As shown in Figure 4 , the pin pulling tool comprises a pin pulling frame 8 and a pin pulling bolt 9.

[0047] The pin pulling frame 8 is a circular hollow structure, and one end of the pin pulling frame 8 has a through hole for the pin pulling bolt 9 to pass through; the threaded part of the pin pulling bolt 9 is in fit with the threaded hole in the center of the upper end surface of the pin shaft 2 after passing through the pin pulling frame 8. A gasket 10 is installed between the nut of the pin pulling bolt 9 and the pin pulling frame 8.

[0048] When the revolute oil cylinder 13 needs to be removed during construction, the fixing bolt 6 and the gland 7 are removed first, then the pin pulling frame 8 is placed above the upper sleeve 3, the gasket 10 is placed on the surface of the pin pulling frame 8, and the pin pulling bolt 9 is screwed into the threaded hole in the center of the pin shaft 2; the pin pulling bolt 9 is tightened to pull the pin shaft 2 out of the hinge seat body 1. After the pin shaft 2 is pulled out of the oil cylinder ear seat 131, the revolute oil cylinder 13 can be removed from the hinge seat body 1 and moved out. At this time, when the pin shaft 2 is pulled up again, there is no other resistance, and it can be easily taken out.

[0049] Therefore, when used, the pin pulling frame 8 cooperates with the pin pulling bolt 9, and the pin pulling bolt 9 is tightened to quickly pull the pin shaft 2 out of the hinge seat body 1, the upper sleeve 3 and the lower sleeve 5, saving time and effort.

[0050] Although the utility model has been described in detail above with general description and specific embodiments, some modifications or improvements can be made on the basis of the utility model, which is obvious to those skilled in the art. Therefore, these modifications or improvements made on the basis of not deviating from the spirit of the utility model belong to the scope of protection required by the utility model.

Claims

1. A cylinder articulation mount, characterized by: The utility model relates to a hinge seat body (1), pin shaft (2), upper sleeve (3) lower sleeve (5) and gland (7) are included. One side of the hinge seat body (1) has a groove to form an upper and lower clamping structure for inserting the cylinder ear seat (131); The hinge seat body (1) is provided with a hinge seat upper hole on the upper layer of the groove side and a coaxial hinge seat lower hole on the lower layer; the pin shaft (2) passes through the hinge seat upper hole, the cylinder ear seat (131) and the hinge seat lower hole in sequence to connect the cylinder ear seat (131) and the hinge seat body (1); The upper sleeve (3) is a circular ring structure with a flange, the sleeve part of which is sleeved between the hinge seat upper hole and the pin shaft (2), and the flange part is located on the upper surface of the hinge seat body (1); The lower sleeve (5) is a circular ring structure, which is installed between the hinge seat lower hole and the pin shaft (2); The gland (7) is installed above the flange part of the upper sleeve (3) and the pin shaft (2) and is connected with the flange part of the upper sleeve (3) and the hinge seat body (1) through the fixing bolt (6). The utility model also includes a spacer ring (4); the spacer ring (4) is arranged between the upper end surface of the cylinder ear seat (131) and the hinge seat body (1) and between the lower end surface of the cylinder ear seat (131) and the hinge seat body (1).

2. The rod hinge mount of claim 1, wherein: The pin shaft (2) is made of alloy steel and plated with hard chromium on the surface; the upper sleeve (3) and the lower sleeve (5) are made of copper alloy.

3. The rod hinge mount of claim 1 or 2, wherein: The inner ring surface of the upper sleeve (3) and the lower sleeve (5) is embedded with graphene, so that they have self-lubricating properties.

4. The rod hinge mount of claim 1 or 2, wherein: The pin shaft (2) has a stepped structure with a large upper part and a small lower part.

5. The rod hinge mount of claim 1 or 2, wherein: The utility model also includes a pin pulling tool for removing the cylinder ear seat (131) from the hinge seat body (1); 6. The rod hinge mount of claim 1 or 2, wherein: The pin pulling tool includes a pin pulling frame (8) and a pin pulling bolt (9); A threaded hole is formed in the center of the upper end surface of the pin shaft (2) for cooperating with the pin pulling bolt (9); The pin pulling frame (8) is a circular hollow structure, one end of which has a through hole for the pin pulling bolt (9) to pass through; the threaded part of the pin pulling bolt (9) cooperates with the threaded hole in the center of the upper end surface of the pin shaft (2) after passing through the pin pulling frame (8); a gasket (10) is installed between the nut of the pin pulling bolt (9) and the pin pulling frame (8). ​

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