CN113878327A - Shaft sleeve press-fitting device for assembling gear box - Google Patents
Shaft sleeve press-fitting device for assembling gear box Download PDFInfo
- Publication number
- CN113878327A CN113878327A CN202111108519.8A CN202111108519A CN113878327A CN 113878327 A CN113878327 A CN 113878327A CN 202111108519 A CN202111108519 A CN 202111108519A CN 113878327 A CN113878327 A CN 113878327A
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- China
- Prior art keywords
- shaft sleeve
- gear box
- fitting device
- rotating
- cylindrical section
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000009434 installation Methods 0.000 claims abstract description 12
- 230000007246 mechanism Effects 0.000 claims abstract description 7
- 230000000903 blocking effect Effects 0.000 claims abstract description 4
- 238000003825 pressing Methods 0.000 claims description 13
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 238000000034 method Methods 0.000 description 11
- 230000009286 beneficial effect Effects 0.000 description 10
- 230000008569 process Effects 0.000 description 8
- 230000009471 action Effects 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 241000251468 Actinopterygii Species 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P19/00—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes
- B23P19/02—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes for connecting objects by press fit or for detaching same
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B11/00—Work holders not covered by any preceding group in the subclass, e.g. magnetic work holders, vacuum work holders
- B25B11/02—Assembly jigs
Abstract
The invention provides a shaft sleeve press-fitting device for assembling a gear box, which comprises a positioning piece, a rotating piece and a limiting structure, wherein the positioning piece comprises a first cylindrical section inserted into an inner hole of a shaft sleeve, one end of the first cylindrical section is provided with a first step surface, and the first step surface is in stop fit with the end surface of the shaft sleeve; the rotating part is in threaded connection with the positioning part to form a screw nut mechanism, and the rotating part is provided with a jacking surface which is in jacking fit with the end surface of the shaft sleeve mounting hole on the box body, so that the rotating part can only do rotating motion; the limiting structure is arranged on the positioning piece and is used for being matched with the inner wall of the box body in a blocking mode to limit the installation position of the shaft sleeve. Compared with the prior art, the shaft sleeve press-fitting device for assembling the gear box disclosed by the invention has the advantages that the shaft sleeve moves and is installed through the matching of the positioning part and the rotating part, and the shaft sleeve is installed in place through the limiting structure arranged on the positioning part, so that the installation precision of the shaft sleeve is improved.
Description
Technical Field
The invention relates to the technical field of tools, in particular to a shaft sleeve press-fitting device for assembling a gear box.
Background
The gear box is one of important transmission parts in high-voltage switch equipment, mainly plays the effect of speed reduction, transmission power, needs to install a plurality of axle sleeves in the gear box, but because the requirement of high-voltage switch product miniaturization, lightweight, cost reduction, the gear box structure in high-voltage switch equipment is generally compacter, and the space is limited, and the axle sleeve installation degree of difficulty is big.
As shown in fig. 1, four shaft sleeves are required to be installed inside the box 5, including a first shaft sleeve 1, a second shaft sleeve 2 and a third shaft sleeve 3, and one end of each of the three shaft sleeves is provided with a flange, when the box is installed, the pressure rod 6 extends into the box 5 from the outside of the box 5, then the flange surfaces of the three shaft sleeves are pressed by the pressure rod 6, and the installation accuracy is ensured by the stop fit between the flange surfaces and the inner wall of the box 5.
However, the fourth shaft sleeve 4 is required to be installed in the box body, the fourth shaft sleeve 4 is of a straight-tube structure without a flange, and when the pressing rod 6 is used for installation, the fourth shaft sleeve 4 is in a hollow state, is easy to jack too much or too little, and is difficult to ensure installation accuracy.
Disclosure of Invention
The invention aims to provide a shaft sleeve press-fitting device for assembling a gearbox, which is high in shaft sleeve installation precision.
In order to achieve the purpose, the shaft sleeve press-fitting device for assembling the gear box adopts the following technical scheme:
a shaft sleeve press-fitting device for assembling a gear box comprises:
the positioning piece comprises a first cylindrical section which is inserted into an inner hole of the shaft sleeve, a first step surface is arranged at one end of the first cylindrical section, and the first step surface is in stop fit with the end surface of the shaft sleeve;
the rotating part is in threaded connection with the positioning part to form a screw nut mechanism, and is provided with a jacking surface which is used for jacking and matching with the end surface of the shaft sleeve mounting hole on the box body, so that the rotating part can only do rotating motion;
and the limiting structure is arranged on the positioning piece and is used for being matched with the inner wall of the box body in a blocking manner so as to limit the installation position of the shaft sleeve.
The beneficial effects of the above technical scheme are that: a positioning part is arranged, a cylindrical section of the positioning part is used for being inserted into the inner wall of the shaft sleeve, one end of the cylindrical section is provided with a first step surface, and the first step surface is used for being matched with the end surface of the shaft sleeve in a blocking way; the rotating part is in threaded connection with the positioning part to form a screw-nut mechanism, a jacking surface is arranged on the rotating part and is used for being in jacking fit with the end surface of a shaft sleeve mounting hole in the box body, so that the rotating part can only do rotating motion, and when the rotating part rotates, the positioning part moves towards the direction of the shaft sleeve mounting hole and pushes the shaft sleeve to move through a first step surface to mount the shaft sleeve; the limiting structure is arranged, and in the moving process of the positioning piece, the mounting position of the shaft sleeve is limited by the stop matching of the limiting structure and the inner wall of the box body, so that the mounting precision of the shaft sleeve is ensured.
Compared with the prior art, the shaft sleeve press-fitting device for assembling the gear box is used for installing the shaft sleeve through the matching of the positioning piece and the rotating piece, and the shaft sleeve is installed in place through the limiting structure arranged on the positioning piece, so that the installation precision of the shaft sleeve is improved.
Further, the positioning member includes a threaded hole, and the rotating member includes a stud connected to the threaded hole.
The beneficial effects of the above technical scheme are that: the setting element includes the screw hole for the volume of setting element is less, makes things convenient for the inside that the setting element got into the box.
Furthermore, the rotating part further comprises a rotating block connected with the stud, the rotating block is used for driving the stud to rotate, and the top pressing surface is arranged on the rotating block.
The beneficial effects of the above technical scheme are that: the rotating part has a simple structure and is convenient to process and manufacture.
Furthermore, the shaft sleeve press-fitting device for assembling the gear box further comprises a rocker connected with the rotating block.
The beneficial effects of the above technical scheme are that: through setting up the rocker, make things convenient for rotatory piece to rotate.
Furthermore, the end of the rocker is connected with a hexagon nut.
The beneficial effects of the above technical scheme are that: the arrangement of the hexagon nut facilitates the rotation of the rocker through the connection of the wrench and the hexagon nut during use.
Furthermore, the rocker comprises a polished rod section, a threaded section located at one end of the polished rod section and a stopping head located at the other end of the polished rod section, the polished rod section is used for penetrating through the rotating block, the stopping head is used for being matched with the side face of the rotating block in a stopping mode, and the hexagonal nut is in threaded connection with the threaded section.
The beneficial effects of the above technical scheme are that: the hexagonal nut is simple in connection mode with the rocker, and convenient to install and detach, the polished rod section penetrates through the rotating block, the stop head is matched with the stop of the rotating block in a stop mode, the rocker and the rotating block are convenient to install and detach, and the rocker and the rotating block can be stored after being used conveniently.
Furthermore, the limiting structure is a second step surface arranged on the positioning piece.
The beneficial effects of the above technical scheme are that: the limiting structure is a second step surface arranged on the positioning piece, so that the positioning piece is simple in structure.
Furthermore, the positioning piece further comprises a second cylindrical section and a third cylindrical section which are connected with the first cylindrical section and the outer diameters of which are sequentially increased, the first step surface is formed by a step surface between the first cylindrical section and the second cylindrical section, and the second step surface is formed by a step surface between the second cylindrical section and the third cylindrical section.
The beneficial effects of the above technical scheme are that: the positioning piece has simple structure and is convenient to process and manufacture.
Further, the threaded hole is a through hole.
The beneficial effects of the above technical scheme are that: the threaded hole is a through hole, so that the positioning piece is convenient to process and manufacture, and is also convenient to be matched with the rotating piece.
Furthermore, the shaft sleeve press-fitting device for assembling the gear box further comprises a liner, the liner is used for being clamped between the top pressing surface and the end face of the shaft sleeve mounting hole, and the top pressing surface is in indirect top pressing fit with the end face of the shaft sleeve mounting hole through the liner.
The beneficial effects of the above technical scheme are that: through setting up the liner, make the roof pressure face pass through the indirect roof pressure cooperation of the terminal surface of liner and the axle sleeve mounting hole on the box, when preventing the rotating member rotation, fish tail box outer wall.
Drawings
FIG. 1 is a top view of a prior art gearbox, bushing and strut;
in the figure: 1. a first bushing; 2. a second shaft sleeve; 3. a third shaft sleeve; 4. a fourth shaft sleeve; 5. a box body; 6. a pressure lever;
FIG. 2 is a plan view showing a state in which the shaft sleeve press-fitting device for assembling a gear case according to the present invention is used;
in the figure: 5. a box body; 7. a positioning member; 7-1, a first cylindrical section; 7-2, a second cylindrical section; 7-3, a third cylindrical section; 7-4, a first step surface; 7-5, a second step surface; 7-6, a threaded hole; 8. a rotating member; 8-1, a stud; 8-2, rotating the block; 9. a liner; 10. a rocker; 10-1, a polish rod section; 10-2, a threaded section; 10-3, stopping the head; 11. a hexagonal nut; 12. a shaft sleeve mounting hole; 13. and a shaft sleeve.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the detailed description and specific examples, while indicating the preferred embodiment of the invention, are intended for purposes of illustration only and are not intended to limit the scope of the invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without making any creative effort, shall fall within the protection scope of the present invention.
It is noted that relational terms such as "first" and "second," and the like, may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The features and properties of the present invention are described in further detail below with reference to examples.
One embodiment of the shaft sleeve press-fitting device for assembling the gear box (hereinafter referred to as a press-fitting device) in the invention is as follows: the press-fitting device in this embodiment is applicable to a fourth shaft sleeve in the prior art, that is, the shaft sleeve 13 shown in fig. 2, and specifically, the press-fitting device includes a positioning member 7, as shown in fig. 2, the positioning member 7 includes a first cylindrical section 7-1, a second cylindrical section 7-2, and a third cylindrical section 7-3, of which outer diameters are sequentially increased, the first cylindrical section 7-1 is inserted into an inner hole of the shaft sleeve 13, a first step surface 7-4 is formed on a step surface between the first cylindrical section 7-1 and the second cylindrical section 7-2, and the first step surface 7-4 is used for being in stop fit with an end surface of the shaft sleeve 13. The press-fitting device further comprises a limiting structure, the limiting structure is arranged on the positioning piece 7, specifically, a second step surface 7-5 is formed on a step surface between the second cylindrical section 7-2 and the third cylindrical section 7-3, the second step surface 7-5 forms the limiting structure, and the second step surface 7-5 is used for being in stop fit with the inner wall of the box body 5 to limit the installation position of the shaft sleeve 13.
The press-fitting device further comprises a rotating part 8, and the rotating part 8 is in threaded connection with the positioning part 7 to form a screw-nut mechanism. Specifically, a through hole is formed in the center of the positioning piece 7 and is a threaded hole 7-6, the rotating piece 8 comprises a stud 8-1, the stud 8-1 is in threaded connection with the threaded hole 7-6, and the positioning piece 7 moves by rotating the rotating piece 8. In order to rotate the rotating member 8 conveniently, the rotating member 8 further comprises a rotating block 8-2 connected with the stud 8-1, and the rotating block 8-2 is used for driving the stud 8-1 to rotate. In order to enable the rotating piece 8 to only rotate, the rotating block 8-2 is provided with a top pressing surface which is in top pressing fit with the end surface of the shaft sleeve mounting hole 12 on the box body 5. Specifically, the press-fitting device further comprises a gasket 9, the gasket 9 is clamped between a top pressing surface and the end surface of a shaft sleeve mounting hole 12 in the box body 5, the top pressing surface of the rotating block 8-2 is in indirect top pressing fit with the end surface of the shaft sleeve mounting hole 12 in the box body 5 through the gasket 9, and the gasket 9 is pressed when the rotating block 8-2 rotates, so that the outer surface of the box body 5 is prevented from being damaged.
In order to facilitate the rotation of the rotating piece 8, the press-fitting device further comprises a rocker 10, the rocker 10 comprises a polished rod section 10-1, a threaded section 10-2 located at one end of the polished rod section 10-1 and a stop head 10-3 located at the other end of the polished rod section 10-1, the polished rod section 10-1 is used for penetrating through the rotating block 8-2 in the direction perpendicular to the axis of the stud 8-1, the outer diameter of the stop head 10-3 is larger than that of the polished rod section 10-1, the stop head 10-3 is used for being matched with the side stop of the rotating block 8-2 in a stop mode, the threaded section 10-2 is in threaded connection with a hexagon nut 11, and the hexagon nut 11 is used for preventing the polished rod section 10-1 from being separated from the rotating block 8. When rotating rocker 10, operating personnel can use the spanner to be connected with hexagon nut 11, increases the rotation power arm, makes rocker 10 rotate more laborsavingly.
When the press mounting device is used, the rocker 10 is rotated to enable the rotating block 8-2 of the rotating piece 8 to be tightly pressed on the gasket 9 for rotation, meanwhile, the third cylindrical section 7-3 of the positioning piece 7 is clamped through a wrench, the positioning piece 7 is enabled to move towards the direction of the shaft sleeve mounting hole 12 under the action of the principle of a screw and nut mechanism, the shaft sleeve 13 is pressed through the first step surface 7-4 to enable the positioning piece 7 to move when moving, the shaft sleeve 13 is mounted, and in the moving process, the mounting position of the shaft sleeve 13 is limited through the stop matching of the second step surface 7-5 and the box body 5.
Compared with the prior art, the shaft sleeve press-fitting device for assembling the gear box is used for installing the shaft sleeve 13 through the matching of the positioning part 7 and the rotating part 8, and the shaft sleeve 13 is installed in place through the limiting structure arranged on the positioning part 7, so that the installation precision of the shaft sleeve 13 is improved.
In other embodiments of the shaft sleeve press-fitting device for assembling the gear box, no gasket is arranged between the rotating block and the box body, and the rotating block is directly in press fit with the end face of the shaft sleeve mounting hole in the box body.
In other embodiments of the bushing press-fitting device for assembling the gearbox, the threaded holes of the positioning members are not through holes, but blind holes.
In other embodiments of the sleeve press-fitting device for assembling a gear case, the positioning member is formed of four or more cylindrical sections, instead of three cylindrical sections.
In other embodiments of the shaft sleeve press-fitting device for assembling the gear box, the limit structure is not the second step surface provided on the positioning member, but a stopper rod or a stopper fixed on the outer peripheral surface of the positioning member 7, and the stopper rod or the stopper constitutes the limit structure.
In other embodiments of the shaft sleeve press-fitting device for assembling the gear box, the rocker is a polished rod with the same diameter, the rocker is directly welded and fixed with the rotating block, and the hexagon nut is welded and fixed on the rocker.
In other embodiments of the bushing press-fitting device for assembling a gearbox, the end of the rocker is not provided with a hexagon nut, but the rocker is directly rotated, or the lengthened sleeve is directly connected with the rocker.
In other embodiments of the bushing press-fitting device for assembling a gear box, the bushing press-fitting device for assembling a gear box does not include a rocker lever, but directly rotates the rotary block.
In another embodiment of the bushing press-fitting device for assembling a gear box, the rotary member does not include a rotary block, the stud has a certain length, the stud can be directly rotated, a stopper rod or a stopper plate for stopper-fitting with an end surface of the bushing or the bushing mounting hole is fixed on an outer circumferential surface of the stud, and the stopper surface is formed by a surface of the stopper rod or the stopper plate.
In other embodiments of the shaft sleeve press-fitting device for assembling the gear box, the positioning element does not comprise a threaded hole but is provided with a stud connected with the cylindrical section, the rotating element does not comprise a stud but is provided with a threaded hole, and at the moment, the positioning element and the rotating element still form a screw-nut mechanism.
The above description is only a preferred embodiment of the present invention, and not intended to limit the present invention, the scope of the present invention is defined by the appended claims, and all structural changes that can be made by using the contents of the description and the drawings of the present invention are intended to be embraced therein.
Claims (10)
1. The utility model provides a shaft sleeve pressure equipment device for gear box assembly which characterized in that includes:
the positioning piece (7), the positioning piece (7) comprises a first cylindrical section (7-1) inserted into an inner hole of the shaft sleeve (13), one end of the first cylindrical section (7-1) is provided with a first step surface (7-4), and the first step surface (7-4) is used for being in stop fit with the end surface of the shaft sleeve (13);
the rotating piece (8) is in threaded connection with the positioning piece (7) to form a screw rod and nut mechanism, and the rotating piece (8) is provided with a jacking surface which is used for jacking and matching with the end surface of the shaft sleeve mounting hole (12) on the box body (5) so that the rotating piece (8) can only do rotating motion;
and the limiting structure is arranged on the positioning piece (7) and is used for being matched with the inner wall of the box body (5) in a blocking way to limit the installation position of the shaft sleeve (13).
2. The bushing press-fitting device for assembling the gear box as claimed in claim 1, wherein the positioning member (7) includes a threaded hole (7-6), and the rotary member (8) includes a stud (8-1) connected to the threaded hole (7-6).
3. The shaft sleeve press-fitting device for the gear box assembly according to claim 2, wherein the rotating member (8) further comprises a rotating block (8-2) connected with the stud (8-1), the rotating block (8-2) is used for driving the stud (8-1) to rotate, and the pressing surface is arranged on the rotating block (8-2).
4. The bushing press-fitting device for gear box assembly according to claim 3, further comprising a rocker lever (10) connected to the rotary block (8-2).
5. The bushing press-fitting device for assembling a gear box according to claim 4, wherein a hexagonal nut (11) is coupled to an end of the rocker lever (10).
6. The shaft sleeve press-fitting device for the gear box assembly according to claim 5, wherein the rocker (10) comprises a polished rod section (10-1), a threaded section (10-2) at one end of the polished rod section (10-1), and a stop head (10-3) at the other end of the polished rod section (10-1), the polished rod section (10-1) is used for penetrating through the rotating block (8-2), the stop head (10-3) is used for stopping and matching with the side surface of the rotating block (8-2), and the hexagon nut (11) is in threaded connection with the threaded section (10-2).
7. The bushing press-fitting device for assembling the gear box according to any one of claims 1 to 6, wherein the limit structure is a second step surface (7-5) provided on the positioning member (7).
8. The shaft sleeve press-fitting device for assembling the gear box as claimed in claim 7, wherein the retainer (7) further comprises a second cylindrical section (7-2) and a third cylindrical section (7-3) which are connected to the first cylindrical section (7-1) and have successively larger outer diameters, the first step surface (7-4) is formed by a step surface between the first cylindrical section (7-1) and the second cylindrical section (7-2), and the second step surface (7-5) is formed by a step surface between the second cylindrical section (7-2) and the third cylindrical section (7-3).
9. A bushing press-fitting device for assembling a gear box according to any one of claims 2-6, characterized in that said threaded holes (7-6) are through holes.
10. The bushing press-fitting device for gear box assembly according to any one of claims 1-6, characterized in that, the bushing press-fitting device for gear box assembly further comprises a gasket (9), the gasket (9) is used for being clamped between the pressing surface and the end surface of the bushing mounting hole (12), and the pressing surface is indirectly pressed and matched with the end surface of the bushing mounting hole (12) through the gasket (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111108519.8A CN113878327A (en) | 2021-09-22 | 2021-09-22 | Shaft sleeve press-fitting device for assembling gear box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111108519.8A CN113878327A (en) | 2021-09-22 | 2021-09-22 | Shaft sleeve press-fitting device for assembling gear box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113878327A true CN113878327A (en) | 2022-01-04 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111108519.8A Pending CN113878327A (en) | 2021-09-22 | 2021-09-22 | Shaft sleeve press-fitting device for assembling gear box |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113878327A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114888749A (en) * | 2022-05-23 | 2022-08-12 | 成都飞机工业（集团）有限责任公司 | Mounting tool and mounting method for eccentric bushing |
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| US20090106963A1 (en) * | 2007-10-31 | 2009-04-30 | Acciardo Jr Andrew T | Kingpin bushing installation tool |
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| CN114888749B (en) * | 2022-05-23 | 2023-07-21 | 成都飞机工业（集团）有限责任公司 | Installation tool and installation method of eccentric bushing |
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