Mounting device for sleeve and shaft sleeve

Abstract

The invention relates to the technical field of connecting shaft devices, in particular to a sleeve and shaft sleeve mounting device which comprises a body, the body comprises a supporting mechanism, a connecting mechanism is arranged on the top face of the supporting mechanism, and a power mechanism is arranged on the connecting mechanism in a penetrating mode; the supporting mechanism comprises a supporting ring, supporting plates are arranged on the bottom face of the supporting ring at intervals, a plurality of buckles are arranged on the side wall of the supporting ring, and flange plates are arranged on the bottom faces of the supporting plates. The installation efficiency of the supporting mechanism and the connecting mechanism is improved through the arrangement of a buckle and a fixing groove, sufficient power is provided for installation of the sleeve and the shaft sleeve through the arrangement of a hydraulic cylinder, and the situation that a pressing plate is disengaged from the shaft sleeve in the downward pressing process, assembly is affected, and even the shaft sleeve is damaged is avoided through the arrangement of a pressing plate structure.

Description

Technical Field

[0001] The invention relates to the technical field of movable guide vane sleeves of a hydro-generator set, in particular to a sleeve and sleeve installation device. Background Art

[0002] The sleeve is usually installed on the shaft and can withstand the radial load generated by the shaft during operation; the sleeve is usually a cylindrical part, installed inside the machine structure, and is a mechanical part used to reduce friction and wear; the sleeve can bear the radial load generated by the shaft during operation, prevent the shaft from direct contact with the bearing or other components, thereby reducing wear and corrosion on the shaft surface.

[0003] The existing installation method uses a copper hammer to knock, and the manual knocking force is uneven and the force is not in the center, which makes the sleeve difficult to install and the sleeve is easy to deform. Summary of the invention

[0004] In view of the inconvenient installation of the sleeve and the shaft sleeve mentioned above or in the prior art, the present invention is proposed.

[0005] Therefore, an object of the present invention is to provide a mounting device for a sleeve and a bushing.

[0006] In order to solve the above technical problems, the present invention provides the following technical solutions: the main body comprises a supporting mechanism, a connecting mechanism is arranged on the top surface of the supporting mechanism, and a power mechanism is arranged through the connecting mechanism;

[0007] The support mechanism comprises a support ring, a support plate is arranged at intervals on the bottom surface of the support ring, a plurality of buckles are arranged on the side wall, and a flange is arranged on the bottom surface of the support plate.

[0008] As a preferred solution of the installation device of the sleeve and the bushing of the present invention, the connecting mechanism includes a top wall and a side wall, and the side wall is arranged around the top wall to form a receiving space together with the top wall.

[0009] As a preferred solution of the installation device of the sleeve and the bushing of the present invention, wherein: a plurality of connecting parts are arranged on the side wall, and the connecting parts include a guide groove and a fixing groove.

[0010] As a preferred solution of the installation device of the sleeve and the bushing of the present invention, wherein: the guide groove is arranged perpendicular to the side wall, and one end is connected to the bottom surface of the side wall, the fixing groove is arranged inside the side wall and parallel to the bottom surface of the side wall, and one end of the guide groove located in the side wall is connected to the fixing groove in the side wall.

[0011] As a preferred solution of the installation device of the sleeve and the bushing of the present invention, wherein: the connecting portion further includes a limiting protrusion, and the limiting protrusion is arranged on at least one side of the fixing groove.

[0012] As a preferred solution of the installation device of the sleeve and the bushing of the present invention, the power mechanism includes a hydraulic cylinder, the cylinder body of the hydraulic cylinder is fixed on the top wall, and the piston rod of the hydraulic cylinder passes through the top wall.

[0013] As a preferred solution of the installation device of the sleeve and the bushing of the present invention, the power mechanism further includes a pressure plate, and the pressure plate is fixedly connected to the bottom surface of the piston rod of the hydraulic cylinder.

[0014] As a preferred solution of the installation device of the sleeve and the bushing of the present invention, the pressure plate includes a pressure piece and a guide piece, the pressure piece is cylindrical, and the guide piece is an inverted truncated cone structure.

[0015] As a preferred solution of the installation device of the sleeve and the bushing of the present invention, the outer diameter of the pressure member is larger than the outer diameter of the guide member, and a step surface is formed at the connection between the pressure member and the guide member.

[0016] As a preferred solution of the installation device of the sleeve and the shaft sleeve of the present invention, it also includes a guide ring, and the guide ring is used to guide the shaft sleeve to be assembled into the cylinder.

[0017] The beneficial effects of the installation device for the sleeve and the shaft sleeve of the present invention are as follows: the installation efficiency of the supporting mechanism and the connecting mechanism is improved by the setting of the snap buckle and the fixing groove, sufficient power is provided for the installation of the sleeve and the shaft sleeve by the setting of the hydraulic cylinder, and the setting of the pressure plate structure prevents the pressure plate from slipping off the shaft sleeve during the pressing process, affecting the assembly and even causing damage to the shaft sleeve. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0019] Figure 1 It is an overall schematic diagram of the installation device of the sleeve and the sleeve.

[0020] Figure 2 It is a schematic diagram of the internal structure of the installation device of the sleeve and the sleeve.

[0021] Figure 3 It is a schematic diagram of the connecting mechanism structure.

[0022] Figure 4 Schematic diagram of the supporting mechanism structure.

[0023] Figure 5 It is a schematic diagram of the sleeve structure.

[0024] Figure 6 It is a schematic diagram of the pressure plate structure.

[0025] Figure 7 Schematic diagram of the guide ring structure.

[0026] Figure 8 Schematic diagram of the shaft sleeve structure. DETAILED DESCRIPTION

[0027] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0028] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0029] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive with other embodiments.

[0030] Example 1, reference Figures 1 to 6 and Figure 8 , which is the first embodiment of the present invention, provides a mounting device for a sleeve and a bushing.

[0031] It includes a main body 100, which includes a supporting mechanism 101. The supporting mechanism 101 is set as a cylindrical frame. The upper end of the supporting mechanism 101 supports the power mechanism 103, and the lower end fixes the sleeve 104, so that the sleeve 104 and the shaft sleeve 105 are positioned during the assembly process.

[0032] Specifically, a connection mechanism 102 is disposed on the top surface of the support mechanism 101 . The connection mechanism 102 is used to fix the power mechanism 103 and allow the power mechanism 103 to pass through it and reciprocate along it to press the sleeve 105 into the sleeve 104 .

[0033] Furthermore, the support mechanism 101 includes a support ring 101a, and support plates 101b are arranged at intervals on the bottom surface of the support ring 101a. The number of support plates 101b is preferably four, which not only provides better supporting force to the support ring 101a but also facilitates observing the working conditions inside the support mechanism 101 from the gaps between the support plates 101b.

[0034] Among them, the side wall is provided with a plurality of buckles 101d, preferably four in this embodiment, which are cylindrical in shape. It should be noted that as long as the buckle 101d can slide in the guide groove 102d-1 and the fixed groove 102d-2, the specific shape is not limited; the buckle 101d is used to connect with the fixed groove 102d-2, which facilitates the installation of the connecting mechanism 102 and the supporting mechanism 101, so that the device is more convenient to use.

[0035] Furthermore, a flange 101c is provided on the bottom surface of the support plate 101b, and the flange 101c is used to be bolted to the sleeve flange 104a to prevent the sleeve flange 104a from moving during the installation process.

[0036] The connecting mechanism 102 is arranged in the shape of a bottle cap, including a top wall 102a and a side wall 102c. The side wall 102c surrounds the top wall 102a and is enclosed with the top wall 102a to form a receiving space 102b. The receiving space 102b is used to cover the supporting ring 101a.

[0037] Preferably, a plurality of connecting portions 102d are disposed on the side wall 102c, and the number and positions of the connecting portions 102d are adapted to the buckle 101d.

[0038] Specifically, the connecting portion 102d includes a guide groove 102d-1 and a fixing groove 102d-2; the guide groove 102d-1 is opened perpendicular to the side wall 102c, and one end is connected to the bottom surface of the side wall 102c, and the fixing groove 102d-2 is opened inside the side wall 102c and parallel to the bottom surface of the side wall 102c, and the guide groove 102d-1 is located at one end of the side wall 102c and is connected to one end of the fixing groove 102d-2 to form an L-shaped channel. When the connecting mechanism 102 is assembled with the supporting mechanism 101, the buckle 101d slides into the guide groove 102d-1 and finally enters the fixing groove 102d-2, completing the fixed connection between the connecting mechanism 102 and the supporting mechanism 101.

[0039] Alternatively, one end of the guide groove 102d-1 located in the side wall 102c is connected to the middle part of the fixing groove 102d-2 to form a T-shaped channel. When the connecting mechanism 102 is assembled with the supporting mechanism 101, the buckle 101d slides into the guide groove 102d-1 and is finally positioned in the fixing groove 102d-2, completing the fixed connection between the connecting mechanism 102 and the supporting mechanism 101.

[0040] It should be noted here that when the buckle 101d slides into the fixing groove 102d-2, due to the setting of the T-shaped channel, it is not necessary to identify the sliding direction of the buckle 101d. Clockwise or counterclockwise rotation can make the buckle 101d enter the fixing groove 102d-2.

[0041] Furthermore, the power mechanism 103 includes a hydraulic cylinder 103a, a cylinder body 103a-1 of the hydraulic cylinder 103a is bolted to the top wall 102a, an assembly hole 102e is opened in the middle of the top wall 102a, and a piston rod 103a-2 of the hydraulic cylinder 103a enters the support mechanism 101 through the assembly hole 102e and can move back and forth along the assembly hole 102e.

[0042] It should be noted that the hydraulic cylinder here can also be replaced by an electric motor.

[0043] The power mechanism 103 further includes a pressure plate 103b, which is bolted to the bottom surface of the piston rod 103a-2 of the hydraulic cylinder 103a.

[0044] Specifically, the pressure plate 103b is generally disc-shaped, including a pressure piece 103b-1 and a guide piece 103b-2. The pressure piece 103b-1 is cylindrical, and the guide piece 103b-2 is inverted frustum. The outer diameter of the pressure piece 103b-1 is larger than the outer diameter of the guide piece 103b-2. The connection between the pressure piece 103b-1 and the guide piece 103b-2 forms a step surface 103b-3.

[0045] It should be noted that the guide member 103b-2 is an inverted frustum structure. When the pressure plate 103b is pressed against the sleeve 105, the guide member 103b-2 can guide the pressure plate 103b to align with the sleeve 105, and can prevent the pressure plate 103b from sliding off the top surface of the sleeve 105 during the pressing process.

[0046] Example 2, reference Figure 3 , which is the second embodiment of the present invention. Different from the previous embodiment, this embodiment provides a further fixing method for the connecting mechanism.

[0047] Specifically, the connecting portion 102d also includes a limiting protrusion 102d-3, which is arranged on at least one side of the fixing groove 102d-2, and the distance between the limiting protrusion 102d-3 and the end face of the fixing groove 102d-2 is the maximum outer diameter of the buckle 101d. When the buckle 101d slides over the limiting protrusion 102d-3 along the fixing groove 102d-2, the buckle 101d is stopped by the limiting protrusion 102d-3 in the fixing groove 102d-2, so that the connection between the connecting mechanism 102 and the supporting mechanism 101 is more firmly connected.

[0048] In order to achieve a better stopping function, the cross-section of the limiting protrusion 102d-3 is set to a right-angled triangle structure, and the hypotenuse of the triangle is facing the direction of the guide groove 102d-1, so that the buckle 101d can easily pass over the limiting protrusion 102d-3 and be fixed, and it is not easy to escape from the restriction of the limiting protrusion 102d-3.

[0049] Example 3, reference Figures 1 to 8, which is the third embodiment of the present invention. Different from the previous embodiment, this embodiment further provides a guide ring to solve the guiding problem during the installation of the sleeve and the bushing. The rest of the structure is the same as the previous embodiment.

[0050] Specifically, the device further comprises a guide ring 200, and the guide ring 200 is used to guide the sleeve to be fitted into the sleeve.

[0051] When the present device is used to assemble the shaft sleeve and the sleeve, first, the flange 101 c is bolted to the sleeve flange 104 a so that the sleeve 104 is fixed to the lower end of the support mechanism 101 .

[0052] Then, the guide ring 200 is sleeved on one end of the shaft sleeve 105, and the end sleeved with the guide ring 200 is placed into the receiving groove 104b. The function of the guide ring 200 is to ensure that when the shaft sleeve 105 is assembled into the sleeve 104, the two can remain concentric.

[0053] Then, the accommodating space 102b of the connecting mechanism 102 is buckled on the top of the supporting mechanism 101, and the connecting mechanism 102 is rotated so that the buckle 101d enters the fixing groove 102d-2, and the connecting mechanism 102 is firmly connected to the supporting mechanism 101, so that the piston rod 103a-2 of the hydraulic cylinder 103a extends into the supporting mechanism 101 along the connecting mechanism 102, completing the preparation work before the assembly of the sleeve 104 and the bushing 105. Third, start the hydraulic cylinder, and the piston rod 103a-2 of the hydraulic cylinder 103a extends to move the pressure plate 103b downward. The inverted cone shape of the guide member 103b-2 first enters the sleeve 105, so that the pressure plate 103b and the sleeve 105 are aligned, and there will be no relative sliding during the downward pressing process; as the pressure plate 103b continues to move downward, the step surface 103b-3 abuts against the top surface of the sleeve 105, and the piston rod 103a-2 pushes the pressure plate 103b, thereby pushing the sleeve 105 completely into the sleeve 104.

[0054] Finally, remove the guide ring 200 for next use.

[0055] It should be noted that since the extension distance of the piston rod 103a-2 is controllable, the depth of the sleeve 104 inserted into the sleeve 105 becomes a controllable quantity; if two sleeves 105 need to be installed in the sleeve 104, first press the first sleeve 105 to be flush with the bottom surface of the sleeve 104, and then press the second sleeve 105 to be flush with the top surface of the sleeve 104.

[0056] In addition, the device can also remove the worn shaft sleeve 105 from the sleeve 104. Specifically, the flange 101c is bolted to the sleeve flange 104a, so that the sleeve 104 is fixed to the lower end of the support mechanism 101; the device fixedly connected with the sleeve 104 is suspended and supported by the sleeve flange 104a; the hydraulic cylinder is started, and the piston rod 103a-2 of the hydraulic cylinder 103a extends, so that the pressure plate 103b moves downward, and the guide member 103b-2 is The inverted frustum shape first enters the sleeve 105, so that the pressure plate 103b is aligned with the sleeve 105, and there will be no relative sliding during the pressing process; as the pressure plate 103b continues to move downward, the step surface 103b-3 abuts against the top surface of the sleeve 105, and the piston rod 103a-2 pushes the pressure plate 103b. As the piston rod 103a-2 continues to extend, the sleeve 105 is gradually pushed out of the sleeve 104, completing the disassembly of the sleeve 105 and the sleeve 104.

[0057] In actual application, in view of the wear of the movable guide vane sleeve of the turbine generator set of our company, Guizhou Wujiang Hydropower Development Co., Ltd., when the movable guide vane sleeve needs to be replaced, the old sleeve is taken out using this device, and then the new sleeve is installed in the sleeve, thereby improving the installation accuracy and installation efficiency of the sleeve 104 and the sleeve 105, ensuring that the movable guide vane rotates within the specified range, thereby ensuring that the vertical clearance of the unit meets the requirements and reducing the water leakage of the unit; this device not only has the function of installing the sleeve in the sleeve, but also has the function of removing the sleeve from the sleeve.

[0058] Importantly, it should be noted that the construction and arrangement of the present application shown in a plurality of different exemplary embodiments are only exemplary. Although only a few embodiments are described in detail in this disclosure, it should be readily understood by those who refer to this disclosure that many modifications are possible (e.g., the size, scale, structure, shape and proportion of various elements, and parameter values ​​(e.g., temperature, pressure, etc.), installation arrangement, use of materials, color, directional changes, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in the application. For example, the element shown as integrally formed can be composed of multiple parts or elements, the position of the element can be inverted or otherwise changed, and the nature or number or position of the discrete element can be changed or changed. Therefore, all such modifications are intended to be included in the scope of the present invention. The order or sequence of any process or method steps can be changed or reordered according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure of performing the function described herein, and is not only structurally equivalent but also equivalent structure. Without departing from the scope of the present invention, other replacements, modifications, changes and omissions can be made in the design, operating conditions and arrangement of the exemplary embodiments. Therefore, the invention is not limited to a specific embodiment, but extends to numerous modifications still falling within the scope of the appended claims.

[0059] Additionally, in order to provide a concise description of exemplary embodiments, all features of an actual embodiment (ie, those features that are not relevant to the best mode presently contemplated for carrying out the invention or those that are not relevant to implementing the invention) may not be described.

[0060] It will be appreciated that in the development of any actual implementation, as in any engineering or design project, numerous implementation-specific decisions may be made. Such a development effort may be complex and time-consuming, but will be a routine task of design, fabrication, and production for those of ordinary skill having the benefit of this disclosure without undue experimentation.

[0061] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A sleeve and bushing mounting device, characterized in that: include, The main body (100) includes a support mechanism (101), a connection mechanism (102) is provided on the top surface of the support mechanism (101), and a power mechanism (103) is provided through the connection mechanism (102); The support mechanism (101) comprises a support ring (101a), the bottom surface of the support ring (101a) is provided with support plates (101b) at intervals, the side wall is provided with a plurality of buckles (101d), and the bottom surface of the support plate (101b) is provided with a flange (101c).

2. The sleeve and bushing mounting device according to claim 1, characterized in that: The connecting mechanism (102) comprises a top wall (102a) and a side wall (102c), wherein the side wall (102c) is arranged around the top wall (102a) and encloses the top wall (102a) to form a receiving space (102b).

3. The sleeve and bushing mounting device according to claim 2, wherein: A plurality of connecting parts (102d) are provided on the side wall (102c), and the connecting parts (102d) include guide grooves (102d-1) and fixing grooves (102d-2).

4. The sleeve and bushing mounting device according to claim 3, wherein: The guide groove (102d-1) is arranged perpendicular to the side wall (102c), and one end is connected to the bottom surface of the side wall (102c); the fixed groove (102d-2) is arranged inside the side wall (102c) and parallel to the bottom surface of the side wall (102c); one end of the guide groove (102d-1) located inside the side wall (102c) is connected to the fixed groove (102d-2) inside the side wall (102c).

5. The sleeve and bushing mounting device according to claim 4, characterized in that: The connecting portion (102d) further includes a limiting protrusion (102d-3), and the limiting protrusion (102d-3) is arranged on at least one side of the fixing groove (102d-2).

6. The sleeve and bushing mounting device according to claim 2, wherein: The power mechanism (103) comprises a hydraulic cylinder (103a), a cylinder body (103a-1) of the hydraulic cylinder (103a) is fixed on the top wall (102a), and a piston rod (103a-2) of the hydraulic cylinder (103a) passes through the top wall (102a).

7. The sleeve and bushing mounting device according to claim 6, characterized in that: The power mechanism (103) further comprises a pressing plate (103b), wherein the pressing plate (103b) is fixedly connected to the bottom surface of the piston rod (103a-2) of the hydraulic cylinder (103a).

8. The sleeve and bushing mounting device according to claim 7, wherein: The pressure plate (103b) comprises a pressure member (103b-1) and a guide member (103b-2); the pressure member (103b-1) is cylindrical, and the guide member (103b-2) is an inverted frustum structure.

9. The sleeve and bushing mounting device according to claim 8, wherein: The outer diameter of the pressure member (103b-1) is greater than the outer diameter of the guide member (103b-2), and a step surface (103b-3) is formed at the connection between the pressure member (103b-1) and the guide member (103b-2).

10. The installation device for a sleeve and a bushing according to any one of claims 1 to 9, characterized in that: It also includes a guide ring (200), which is used to guide the sleeve to fit into the cylinder.

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