Air cylinder hole filling structure, air cylinder and disassembly and assembly method of hole filling piece

Abstract

The invention discloses an air cylinder hole filling structure, an air cylinder and a dismounting and mounting method of a hole filling piece, and relates to the field of air cylinder hole filling structures, the hole filling structure comprises the hole filling piece and an arc-shaped groove formed in an upper half cylinder, and the top of the hole filling piece is provided with a top face consistent with the outline of the upper half cylinder; an arc-shaped boss is arranged on the hole filling piece, and the arc-shaped groove can be filled with the arc-shaped boss; a first positioning structure is arranged on the upper surface of the arc-shaped boss, a second positioning structure is arranged on the upper side face of the arc-shaped groove, and the first positioning structure and the second positioning structure are matched to form a positioning mechanism for circumferentially positioning the arc-shaped boss; an elastic piece is arranged at the bottom of the hole filling piece, and after the hole filling piece is installed, the elastic piece has elastic potential energy and acts on the hole filling piece; the cylinder comprises a hole filling structure; the method is a method of installing a porefilling member in a porefilling structure. On the premise that use requirements are met, the device is not limited by materials, spot welding or mortise punching is not needed, and the device can be simply disassembled and assembled in a lossless mode, is convenient to use and can be repeatedly used.

Description

Technical Field

[0001] The invention relates to the field of cylinder hole filling structures, in particular to a cylinder hole filling structure, a cylinder and a method for disassembling and assembling a hole filling part. Background Art

[0002] When the gas turbine is working, air enters the compressor through the intake cylinder. The flow channel inside the intake cylinder is specially designed by pneumatics to make the gas have better fluidity. Usually the intake cylinder is a horizontally divided structure, and the upper and lower halves are connected by the center split screw. Due to the special structure of the cylinder body, corresponding screw mounting holes are set on the flow channel surface of the intake cylinder to install the center split screw. In order to avoid the screw mounting hole from having an adverse effect on the airflow, it is necessary to add a hole filling piece after the screw is installed. The upper surface of the hole filling piece is consistent with the flow channel profile of the intake cylinder. Since the hole filling piece is located at the inlet of the unit, it must be prevented from falling off to ensure the safety of the unit.

[0003] The traditional installation method is to fix the hole filling part on the intake cylinder by punching or spot welding. Although this method is simple to install, it has requirements on the weldability of the material. During the removal process, the punching points or welding points need to be removed. This method will damage or even destroy the hole filling part and the cylinder body, which not only increases the workload, but also is not good for the cylinder when removed multiple times. For this reason, a new cylinder hole filling structure is needed. Summary of the invention

[0004] The purpose of the present invention is to provide a cylinder hole filling structure, a cylinder and a hole filling part disassembly and assembly method in response to the above-mentioned problems. Under the premise of meeting the use requirements, it is not limited by materials, does not require spot welding or mortise and tenoning, can be simply and non-destructively disassembled and assembled, is easy to use, and can be reused many times.

[0005] The technical solution adopted by the present invention is as follows: a cylinder hole filling structure, including a hole filling member and an arc-shaped groove arranged on the upper cylinder, the top of the hole filling member has a top surface consistent with the outer contour line of the upper cylinder; an arc-shaped boss is arranged on the hole filling member, and the arc-shaped boss can be filled in the arc-shaped groove; the upper surface of the arc-shaped boss is provided with a first positioning structure, and the upper side surface of the arc-shaped groove is provided with a second positioning structure, the first positioning structure and the second positioning structure cooperate to form a positioning mechanism for circumferential positioning of the arc-shaped boss; the bottom of the hole filling member has an elastic member, and after the hole filling member is installed, the elastic member has elastic potential energy and acts on the hole filling member.

[0006] Furthermore, the second positioning structure is a positioning groove, the first positioning structure is a positioning boss, and the geometric dimensions of the positioning boss match the geometric dimensions of the positioning groove.

[0007] Further, the second positioning structure is two sets of toothed upper teeth, and the facing directions of the two sets of upper teeth are opposite; the first positioning structure is two sets of toothed lower teeth, and the facing directions of the two sets of lower teeth are opposite; after the filling member is installed, the upper teeth and the lower teeth at the corresponding positions are engaged with each other.

[0008] Further, the upper surface of the filling member has a threaded hole for connecting an operating handle or a groove that can cooperate with the operating handle to drive the filling member to rotate.

[0009] Further, the axis of the threaded hole is collinear with the axis of the filling member.

[0010] Further, a countersunk hole is provided at the position of the threaded hole.

[0011] Further, the circumferential angle of the arc-shaped boss is the same as the circumferential angle of the arc-shaped groove.

[0012] A cylinder includes an upper half cylinder, a lower half cylinder, and the cylinder filling hole structure according to any one of claims 1-7. The upper half cylinder and the lower half cylinder are connected by a mid-plane screw; the filling member is installed in the screw hole of the upper half cylinder, and the elastic member is assembled between the filling member and the mid-plane screw.

[0013] Further, the size of the filling member matches the size of the screw hole.

[0014] A method for disassembling and assembling a cylinder, which is applied to the cylinder described above, includes the following steps:

[0015] S1: Assembling the cylinder: including steps S11-S17;

[0016] S11: Connect the upper half cylinder and the lower half cylinder by a mid-plane screw;

[0017] S12: Place the elastic member into the screw hole;

[0018] S13: Threadedly connect an operating handle with a thread to the filling member through the threaded hole; put the filling member into the threaded hole through the operating handle, and at this time, the arc-shaped boss faces outward;

[0019] S14: Press down the filling member through the operating handle, and the filling member compresses the elastic member until the bottom surface of the arc-shaped boss is at the same height as or slightly higher than the lower side surface of the annular groove; at this time, there is a gap between the first positioning structure and the second positioning structure in the direction of the width of the annular groove;

[0020] S15: Rotate the operating handle, and the operating handle drives the filling member to rotate. The arc-shaped boss rotates accordingly and enters the arc-shaped groove until the first positioning structure and the second positioning structure are in a matching position;

[0021] S16: Release the force applied by pressing down the operating handle. The elastic member recovers part of its deformation, pushing the hole filling member to move outward from the screw hole. The first positioning structure and the second positioning structure match to form a positioning mechanism.

[0022] S17: The arc-shaped groove positions the arc-shaped boss in the axial direction of the screw hole, and the positioning mechanism positions the arc-shaped boss in the circumferential direction of the screw hole to achieve the positioning of the hole filling member.

[0023] S18: Remove the operating handle to complete the assembly of the cylinder.

[0024] S2: Disassemble the cylinder, including steps S21 - S27.

[0025] S21: Threadedly connect an operating handle with a thread to the hole filling member through a threaded hole.

[0026] S22: Press down the hole filling member through the operating handle. The hole filling member compresses the elastic member until the first positioning structure and the second positioning structure are disengaged from the match.

[0027] S23: Rotate the operating handle. The operating handle drives the hole filling member to rotate, and the arc-shaped boss rotates accordingly until the arc-shaped boss completely leaves the arc-shaped groove.

[0028] S24: Release the force applied by pressing down the operating handle. The elastic member fully recovers its deformation, pushing the hole filling member to move outward from the screw hole. At the same time, the operating handle takes the hole filling member out of the screw hole.

[0029] S25: Remove the split surface screw to complete the disassembly of the cylinder.

[0030] In summary, due to the adoption of the above technical solutions, the beneficial effects of the present invention are as follows:

[0031] Through the matching and constraint of the arc-shaped boss and the arc-shaped groove, as well as the matching and positioning constraint of the first positioning structure and the second positioning mechanism, and in cooperation with the elastic member, the present invention realizes effective positioning of the hole filling member, without the need to lock the hole filling member by dotting or punching, can be disassembled and assembled simply and without damage, is convenient to use, and can be reused multiple times. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] The present invention will be described by way of examples with reference to the accompanying drawings, where:

[0033] Figure 1 is a schematic structural diagram of the cylinder disclosed in the present invention;

[0034] Figure 2 is a front structural schematic diagram of the hole filling member disclosed in the present invention;

[0035] Figure 3 is a back structural schematic diagram of the hole filling member disclosed in the present invention;

[0036] Figure 4 is Figure 3 The enlarged schematic view at position B in

[0037] Figure 5 The front structure schematic view of the upper half cylinder disclosed by the present invention;

[0038] Figure 6 is Figure 5 The enlarged schematic view at position A in

[0039] Markings in the figure: 1 - hole filling part; 11 - arc-shaped boss; 12 - lower teeth; 13 - counterbore; 14 - threaded hole; 2 - upper half cylinder; 21 - screw hole; 22 - arc-shaped groove; 23 - upper teeth; 3 - lower half cylinder; 4 - elastic part; 5 - mid-plane screw. Specific embodiments

[0040] In the description of this specification, it should be noted that if terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are used to indicate the orientation or positional relationship, it is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the product of this specification is usually placed during use. It is only for the convenience of describing this specification and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to this specification.

[0041] In addition, in the description of this specification, if terms such as "horizontal" and "vertical" are used, it does not mean that the components are required to be absolutely horizontal or hanging vertically, but can be slightly inclined. For example, "horizontal" only means that its direction is more horizontal relative to "vertical", and does not mean that the structure must be completely horizontal, but can be slightly inclined.

[0042] In the description of this specification, it should also be noted that unless otherwise clearly specified and limited, if terms such as "set", "installed", "connected", "linked" are used, they should be understood in a broad sense. For example, the connection can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and can be the communication inside two elements.

[0043] Embodiment 1

[0044] Such as Figures 1 - 6As shown in the figure, a cylinder hole filling structure includes a hole filling member 1 and an arc-shaped groove 22 provided on the upper half cylinder 2. The top of the hole filling member 1 has a top surface that is consistent with the outer contour line type of the upper half cylinder 2. An arc-shaped boss 11 is provided on the hole filling member 1, and the arc-shaped boss 11 can be filled into the arc-shaped groove 22. A first positioning structure is provided on the upper surface of the arc-shaped boss 11, and a second positioning structure is provided on the upper side surface of the arc-shaped groove 22. The first positioning structure and the second positioning structure cooperate to form a positioning mechanism for circumferentially positioning the arc-shaped boss 11. The bottom of the hole filling member 1 has an elastic member 4. After the hole filling member 1 is installed, the elastic member 4 has elastic potential energy and acts on the hole filling member 1.

[0045] In this embodiment, the arc-shaped boss 11 can be filled into the arc-shaped groove 22. It can be known that the width of the arc-shaped groove 22 is greater than the thickness of the arc-shaped boss 11, and both sides of the arc-shaped groove 22 completely penetrate the upper half cylinder 2. Thus, the arc-shaped groove 22 can axially constrain the arc-shaped boss 11, and the positioning mechanism circumferentially constrains the arc-shaped boss 11. Cooperating with the elastic member 4, the elastic member 4 enables the first positioning structure and the second positioning structure to maintain a matching state, that is, the first positioning structure and the second positioning structure maintain the state of forming the positioning mechanism, thereby realizing the complete positioning of the hole filling member 1.

[0046] As can be known from the above, the solution disclosed in this embodiment abandons the existing method of fixing the hole filling member 1 by point mortise or punching mortise. When disassembling and assembling the hole filling member 1, it can cause no damage to the cylinder, realizing non-destructive disassembly and assembly, so that the hole filling member 1 can be reused multiple times. And compared with the existing fixing method, fewer auxiliary tools are required. The existing fixing method usually requires a welding torch, a stamping machine, etc., and the operation is simpler and more convenient, effectively improving the disassembly and assembly efficiency.

[0047] Embodiment 2

[0048] On the basis of Embodiment 1, a further feasible specific implementation method is proposed.

[0049] A feasible implementation method is that the elastic member 4 is a compression spring.

[0050] Regarding the positioning mechanism, the following two feasible implementation methods are proposed in this embodiment.

[0051] The first implementation method is that the second positioning structure is a positioning groove, and the first positioning structure is a positioning boss. The geometric dimensions of the positioning boss match the geometric dimensions of the positioning groove. The matching is achieved by the positioning boss being snapped into the positioning groove to form a positioning mechanism, and this positioning mechanism is similar to the concave-convex fit to achieve positioning.

[0052] In the second embodiment, the second positioning structure is two groups of toothed upper teeth 23, and the two groups of upper teeth 23 are oriented in opposite directions; the first positioning structure is two groups of toothed lower teeth 12, and the two groups of lower teeth 12 are oriented in opposite directions; after the hole filling component 1 is installed, the upper teeth 23 at the corresponding positions are meshed with the lower teeth 12, and the matching is achieved by the meshing of the lower teeth 12 and the upper teeth 23 to form a positioning mechanism.

[0053] It should be noted that, among the two groups of lower teeth 12 and the two groups of upper teeth 23, the lower teeth 12 are oriented in opposite directions, and the upper teeth 23 are oriented in opposite directions, so that the arc-shaped boss 11 can be constrained in both clockwise and counterclockwise rotations, thereby effectively realizing constraint and limiting circumferential motion.

[0054] A feasible implementation manner is that the size of the first positioning structure and / or the second positioning mechanism in the width direction of the arc groove 22 is much smaller than the width of the arc groove 22 or the height of the arc boss 11, and usually one or more orders of magnitude of size difference are selected, that is, if the width of the arc groove 22 is 1 cm, the size of the first positioning structure and / or the second positioning mechanism in the width direction of the arc groove 22 can be less than 0.1 cm; by reducing the size ratio of the gap existing after the arc groove 22 and the arc boss 11 are matched, so as to avoid the existence of a large gap after the arc groove 22 and the arc boss 11 are matched, the gap size is reduced as much as possible, thereby reducing the impact of the gap on the airflow.

[0055] In a feasible implementation manner, the upper surface of the hole-filling member 1 has a threaded hole 14 for connecting the operating handle, and the operating handle can be detachably connected through the threaded hole 14, so that the installation and removal of the operating handle are convenient.

[0056] In a feasible implementation manner, the axis of the threaded hole 14 is colinear with the axis of the hole-filling member 1 to avoid eccentric rotation and reduce the difficulty of operation.

[0057] In a feasible implementation manner, a countersunk hole 13 is provided at the position of the threaded hole 14 , and the threaded hole 14 is located inside the countersunk hole 13 . The purpose of providing the countersunk hole 13 is to facilitate the processing of the threaded hole 14 .

[0058] It should be noted that the hole for connecting the operating handle can be set as a threaded hole 14, or can be set as a groove that can cooperate with the operating handle to drive the hole filling member 1 to rotate, such as a straight, cross-shaped or other shaped groove. If it is set as a groove, the above-mentioned countersunk hole 13 is not required.

[0059] A feasible implementation manner is that the circumferential angle of the arcuate boss 11 is consistent with the circumferential angle of the arcuate groove 22, so that the arcuate boss 11 can completely fill the arcuate groove 22 in the circumferential direction and fill both ends of the arcuate groove 22, reducing the influence of the airflow channel profile on the arcuate groove 22.

[0060] Example 3

[0061] As Figures 1 - 6 shown, a cylinder includes an upper half cylinder 2, a lower half cylinder 3, and the cylinder hole filling structure described in any one of Embodiments 1-2. The upper half cylinder 2 and the lower half cylinder 3 are connected by a split surface screw 5; the filling member 1 is installed in the screw hole 21 of the upper half cylinder 2, and the elastic member 4 is assembled between the filling member 1 and the split surface screw 5.

[0062] In this embodiment, the size of the filling member 1 matches the size of the screw hole 21 to prevent the filling member 1 from shaking.

[0063] Embodiment 4

[0064] As Figures 1 - 6 shown, a disassembly and assembly method of a cylinder, which is applied to the described cylinder, includes the following steps:

[0065] S1: Assemble the cylinder: including steps S11 - S17;

[0066] S11: Connect the upper half cylinder 2 and the lower half cylinder 3 by the split surface screw 5;

[0067] S12: Place the elastic member 4 into the screw hole 21;

[0068] S13: Threadedly connect an operating handle with a thread to the filling member 1 through the threaded hole 14; put the filling member 1 into the screw hole 14 through the operating handle. At this time, the arc-shaped boss 11 faces outward;

[0069] S14: Press down the filling member 1 through the operating handle. The filling member 1 compresses the elastic member 4 until the bottom surface of the arc-shaped boss 11 is at the same height as or slightly higher than the lower side surface of the annular groove; at this time, there is a gap between the first positioning structure and the second positioning structure in the width direction of the annular groove;

[0070] S15: Rotate the operating handle. The operating handle drives the filling member 1 to rotate, and the arc-shaped boss 11 rotates accordingly and enters the arc-shaped groove 22 until the first positioning structure and the second positioning structure are in a matching position;

[0071] S16: Release the pressing force of the operating handle. The elastic member 4 recovers part of its deformation and pushes the filling member 1 to move outward from the screw hole 21. The first positioning structure and the second positioning structure are matched to form a positioning mechanism;

[0072] S17: The arc-shaped groove 22 positions the arc-shaped boss 11 in the axial direction of the screw hole 21, and the positioning mechanism positions the arc-shaped boss 11 in the circumferential direction of the screw hole 21 to realize the positioning of the filling member 1;

[0073] S18: Remove the operating handle to complete the assembly of the cylinder;

[0074] S2: Disassemble the cylinder: including steps S21 - S27;

[0075] S21: Threadedly connect an operating handle with threads to the hole - filling part 1 through the threaded hole 14;

[0076] S22: Press down the hole - filling part 1 through the operating handle, and the hole - filling part 1 compresses the elastic part 4 until the first positioning structure and the second positioning structure are disengaged from the matching;

[0077] S23: Rotate the operating handle, and the operating handle drives the hole - filling part 1 to rotate, and the arc - shaped convex platform 11 rotates accordingly until the arc - shaped convex platform 11 completely leaves the arc - shaped groove 22;

[0078] S24: Release the pressing force of the operating handle, the elastic part 4 completely recovers its deformation, and pushes the hole - filling part 1 to move outward from the screw hole 21; at the same time, the operating handle takes the hole - filling part 1 out of the screw hole 21;

[0079] S25: Disassemble the middle - face screw 5 to complete the disassembly of the cylinder.

[0080] It should be noted that in order to reduce the friction force when the bottom surface of the arc - shaped convex platform 11 and the bottom surface of the arc - shaped groove 22 rotate relative to each other, lubricating grease can be applied or a coating can be sprayed on the two surfaces.

[0081] The present invention is not limited to the foregoing specific embodiments. The present invention extends to any new feature or any new combination disclosed in this specification, as well as any new method or process step or any new combination disclosed.

Claims

1. A cylinder hole filling structure, characterized in that: The invention comprises a hole-filling member (1) and an arc-shaped groove (22) arranged on an upper cylinder (2); the top of the hole-filling member (1) has a top surface that is consistent with the outer contour line of the upper cylinder (2); an arc-shaped boss (11) is arranged on the hole-filling member (1), and the arc-shaped boss (11) can be filled into the arc-shaped groove (22); a first positioning structure is arranged on the upper surface of the arc-shaped boss (11), and a second positioning structure is arranged on the upper side surface of the arc-shaped groove (22); the first positioning structure cooperates with the second positioning structure to form a positioning mechanism for circumferentially positioning the arc-shaped boss (11); the bottom of the hole-filling member (1) has an elastic member (4), and after the hole-filling member (1) is installed, the elastic member (4) has elastic potential energy and acts on the hole-filling member (1).

2. The cylinder hole filling structure according to claim 1, characterized in that: The second positioning structure is a positioning groove, and the first positioning structure is a positioning boss. The geometric dimensions of the positioning boss match the geometric dimensions of the positioning groove.

3. The cylinder hole filling structure according to claim 1, characterized in that: The second positioning structure is two groups of toothed upper teeth (23), and the two groups of upper teeth (23) are oriented in opposite directions; the first positioning structure is two groups of toothed lower teeth (12), and the two groups of lower teeth (12) are oriented in opposite directions; after the hole filling member (1) is installed, the upper teeth (23) and the lower teeth (12) at corresponding positions are meshed.

4. The cylinder hole filling structure according to claim 1, characterized in that: The upper surface of the hole filling member (1) has a threaded hole (14) for connecting an operating handle or a groove that can cooperate with the operating handle to drive the hole filling member (1) to rotate.

5. The cylinder hole filling structure according to claim 4, characterized in that: The axis of the threaded hole (14) is colinear with the axis of the hole-filling member (1).

6. The cylinder hole filling structure according to claim 4, characterized in that: A countersunk hole (13) is arranged at the position of the threaded hole (14).

7. The cylinder hole filling structure according to claim 1, characterized in that: The circumferential angle of the arc-shaped boss (11) is consistent with the circumferential angle of the arc-shaped groove (22).

8. A cylinder, characterized in that: It comprises an upper cylinder (2), a lower cylinder (3) and a cylinder hole filling structure as described in any one of claims 1 to 7, wherein the upper cylinder (2) and the lower cylinder (3) are connected by a center-dividing screw (5); a hole filling member (1) is installed in a screw hole (21) of the upper cylinder (2), and an elastic member (4) is assembled between the hole filling member (1) and the center-dividing screw (5).

9. The cylinder according to claim 7, characterized in that: The size of the hole-filling member (1) matches the size of the screw hole (21).

10. A method for disassembling and assembling a cylinder, applied to a cylinder according to any one of claims 8 to 9, characterized in that: The following steps are involved: S1: Assembling the cylinder: including steps S11 to S17; S11: Connect the upper cylinder (2) and the lower cylinder (3) via the center split screw (5); S12: placing the elastic member (4) into the screw hole (21); S13: Threading an operating handle having a thread on the hole filling member (1) through the threaded hole (14); inserting the hole filling member (1) into the threaded hole (14) through the operating handle, with the arc-shaped boss (11) facing outwards; S14: The hole filling member (1) is pressed down by the operating handle, and the hole filling member (1) compresses the elastic member (4) until the bottom surface of the arc-shaped boss (11) is at the same height as the lower side surface of the annular groove or is slightly higher than the lower side surface of the annular groove; at this time, there is a gap between the first positioning structure and the second positioning structure in the direction of the width of the annular groove; S15: rotating the operating handle, the operating handle rotates with the hole filling member (1), and the arc-shaped boss (11) rotates accordingly, entering the arc-shaped groove (22), until the first positioning structure matches the second positioning structure; S16: The downward force of the operating handle is released, and the elastic member (4) recovers part of its deformation, pushing the hole-filling member (1) to move out of the screw hole (21), and the first positioning structure matches with the second positioning structure to form a positioning mechanism; S17: The arc-shaped groove (22) positions the arc-shaped boss (11) in the axial direction of the screw hole (21), and the positioning mechanism positions the arc-shaped boss (11) in the circumferential direction of the screw hole (21), thereby achieving positioning of the hole-filling member (1); S18: Remove the operating handle and complete the assembly of the cylinder; S2: disassembling the cylinder: including steps S21 to S27; S21: threadingly connecting an operating handle having a thread on the hole filling member (1) through the threaded hole (14); S22: The hole filling member (1) is pressed down by operating the handle, so that the hole filling member (1) compresses the elastic member (4) until the first positioning structure and the second positioning structure are out of match; S23: rotating the operating handle, the operating handle rotates with the hole filling member (1), and the arc-shaped boss (11) rotates accordingly, until the arc-shaped boss (11) completely leaves the arc-shaped groove (22); S24: The downward force of the operating handle is released, and the elastic member (4) completely recovers its deformation, pushing the hole-filling member (1) to move out of the screw hole (21); at the same time, the operating handle brings the hole-filling member (1) out of the screw hole (21); S25: Remove the center split screw (5) to complete the disassembly of the cylinder.

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