CN202964542U - Screw mounting and dismounting tool for heavy pin shaft - Google Patents
Screw mounting and dismounting tool for heavy pin shaft Download PDFInfo
- Publication number
- CN202964542U CN202964542U CN 201220564729 CN201220564729U CN202964542U CN 202964542 U CN202964542 U CN 202964542U CN 201220564729 CN201220564729 CN 201220564729 CN 201220564729 U CN201220564729 U CN 201220564729U CN 202964542 U CN202964542 U CN 202964542U
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- China
- Prior art keywords
- pin shaft
- screw
- support
- spiral
- screw rod
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- Expired - Lifetime
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Abstract
The utility model discloses a screw mounting and dismounting tool for a heavy pin shaft, which comprises a support, wherein the support is connected with equipment with the pin shaft required to be mounted and dismounted; an internal thread sleeve capable of rotating around an axis is fixed on the support; the screw mounting and dismounting tool further comprises a screw rod; the screw rod is sleeved with the internal thread sleeve, and matched with the internal thread sleeve to move axially; the internal thread sleeve is further fixedly connected with a spanner sleeve facilitating driving the internal thread sleeve to rotate; a connecting rod is arranged at the front end of the screw rod; and external threads connected with the pin shaft are formed on the connecting rod. With the adoption of the structure, the mounting and dismounting tool for the pin shaft is simple in structure and convenient to mount, and ensures quick mounting and dismounting of the pin shaft; with the adoption of screw thread pair transmission, local deformation of parts due to striking assembly is avoided; the tool is provided with a lifting device, is convenient and labor-saving to operate, reduces labor intensity of workers, and improves operational safety; and with the adoption of mechanical transmission, the tool is applicable to occasions such as field electroless and air driven devices.
Description
Technical field
The utility model relates to a kind of instrument for the dismounting heavy pin shaft.
Background technology
at present, large-scale or super-huge excavator all transports after essential the decomposition, assemble again behind the building site, its pin shaft parts generally adopts the mode of squeezing into to assemble, (machine weighs 220 tons to the method at the super-huge excavator of assembling, pin diameter φ 220mm, the bearing pin maximum weight is about 200Kg) during axial workpiece, because of heavy its handling of bearing pin, assembling and the work of disassembling will be very difficult, because of fit clearance very little, squeeze into and disassemble time-consuming, effort, and there is unsafe factor, can cause simultaneously part and affiliated deformation of products and even damage product, also can damage coating for metal surfaces, the part easy-to-rust.
The utility model content
For the technical problem of above-mentioned existence, the utility model provides a kind of instrument in the dismounting heavy pin shaft, uses the ball-screw-transmission principle, moves back and forth by screw axial, to realize bearing pin demolition, installation work.
In order to solve the problems of the technologies described above, the technical solution adopted in the utility model is:
The spiral dismantling device of a kind of heavy pin shaft comprises a support that can be connected with the equipment that needs disassembling and assembling pin shaft, and being fixed with on described support can be around the inner screw sheath of axle center rotation; Also comprise a screw rod, described inner screw sheath is placed on screw rod; Screw rod coordinates axially-movable with inner screw sheath; Also be fixedly connected with the spanner cover of being convenient to drive the inner screw sheath rotation on inner screw sheath; Described screw front end is provided with connecting rod, is provided with the external screw thread that is connected for bearing pin on connecting rod.
As a kind of improvement, described support comprises at least two support bars that are parallel to each other; Described support bar front end is provided with the external screw thread that is connected for the equipment that needs disassembling and assembling pin shaft.The external screw thread of support bar front end is convenient to and equipment connection.
Further improve as above-mentioned improvement, described screw rod is parallel with support bar; Described support bar rear end is provided with external screw thread; Described support also comprises a fixed mount, and being fixed with on described fixed mount can be around the inner screw sheath of axle center rotation; Be provided with the screw that coordinates with the external screw thread of support bar rear end setting on described fixed mount.Make like this axial location of fixed mount on support bar to adjust, to adjust the axial stroke of screw rod.
As above-mentioned improved a kind of preferred, be fixed with bearing on described fixed mount; Described bearing is placed in outside inner screw sheath.
As of the present utility model a kind of preferred, described screw rod connects by ball pivot with connecting rod.Utilize ball, make in use, not necessarily need screw rod and bearing pin could use on the same straight line fully.There are a little some deviations still can use.
Improve as another kind, be provided with end cap on two end faces of described bearing.Reach the purpose of water proof and dust proof.
Improve as another kind, be provided with the annular boom hoisting of being convenient to lift by crane on described connecting rod.Be convenient to crane lifting bearing pin.
Usefulness of the present utility model is:
Have the pin assembling/disassembling/instrument of said structure, simple in structure, easy for installation, guaranteed the quick of pin assembling/disassembling/; The screw thread pair transmission has been avoided making parts locally produce distortion because hitting assembling; This instrument carries boom hoisting, and is easy to operate, alleviated workman's labour intensity, improved the security of operation; Machine driving is applicable to open-air without occasions such as electricity, air driving devices.
Description of drawings
Fig. 1 is structural representation of the present utility model.
Mark in figure: 1 support bar, 2 fixed mounts, 3 end caps, 4 spanner covers, 5 inner screw sheaths, 6 screw rods, 7 bearings, 8 connecting rods, 9 boom hoistings, 10 supports, 11 bearing pins, 12 equipment.
The specific embodiment
Below in conjunction with accompanying drawing, the utility model is described in detail.
In order to make the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein only in order to explaining the utility model, and be not used in restriction the utility model.
As shown in Figure 1:
The utility model comprises a support 10 that can be connected with the equipment 12 that needs disassembling and assembling pin shaft 11, and being fixed with on described support 10 can be around the inner screw sheath 5 of axle center rotation; Also comprise a screw rod 6, described inner screw sheath 5 is placed on screw rod 6; Screw rod 6 coordinates axially-movable with inner screw sheath 5; Also be fixedly connected with the spanner cover 4 of being convenient to drive inner screw sheath 5 rotations on inner screw sheath 5; Described screw rod 6 front ends are provided with connecting rod 8, are provided with the external screw thread that is connected for bearing pin 11 on connecting rod 8.
Support 10 can comprise at least two support bars that are parallel to each other 1; Support bar 1 front end is provided with the external screw thread that is connected for the equipment 12 that needs disassembling and assembling pin shaft 11.Screw rod 6 is preferably parallel with support bar 1; Support bar 1 rear end is provided with external screw thread; Support 10 also comprises a fixed mount 2, and being fixed with on described fixed mount 2 can be around the inner screw sheath 5 of axle center rotation; Be provided with the screw that coordinates with the external screw thread of support bar 1 rear end setting on fixed mount 2.Can also be fixed with bearing 7 on fixed mount 2; Described bearing 7 is placed in outside inner screw sheath 5.
Screw rod 6 is connected with connecting rod and is preferably connected by ball pivot.Can also be provided with end cap 3 on two end faces of bearing 7.Can also be provided with the annular boom hoisting 9 of being convenient to lift by crane on connecting rod 8.
When using, at first will utilize the external screw thread of support bar 1 front end that support 10 is fixed on equipment 12, and connecting rod 8 will be connected with bearing pin 11.Then the rotating spanner cover 4, make inner screw sheath 5 rotations, make screw rod 6 axially-movables, drive simultaneously bearing pin 11.
The above is only preferred embodiment of the present utility model; not in order to limit the utility model; all any modifications of doing within spirit of the present utility model and principle, be equal to and replace and improvement etc., within all should being included in protection domain of the present utility model.
Claims (7)
1. the spiral dismantling device of heavy pin shaft, comprise a support that can be connected with the equipment that needs disassembling and assembling pin shaft, and it is characterized in that: being fixed with on described support can be around the inner screw sheath of axle center rotation; Also comprise a screw rod, described inner screw sheath is placed on screw rod; Screw rod coordinates axially-movable with inner screw sheath; Also be fixedly connected with the spanner cover of being convenient to drive the inner screw sheath rotation on inner screw sheath; Described screw front end is provided with connecting rod, is provided with the external screw thread that is connected for bearing pin on connecting rod.
2. the spiral dismantling device of heavy pin shaft according to claim 1, it is characterized in that: described support comprises at least two support bars that are parallel to each other; Described support bar front end is provided with the external screw thread that is connected for the equipment that needs disassembling and assembling pin shaft.
3. the spiral dismantling device of heavy pin shaft according to claim 2, it is characterized in that: described screw rod is parallel with support bar; Described support bar rear end is provided with external screw thread; Described support also comprises a fixed mount, and being fixed with on described fixed mount can be around the inner screw sheath of axle center rotation; Be provided with the screw that coordinates with the external screw thread of support bar rear end setting on described fixed mount.
4. the spiral dismantling device of heavy pin shaft according to claim 3, is characterized in that: be fixed with bearing on described fixed mount; Described bearing is placed in outside inner screw sheath.
5. the spiral dismantling device of heavy pin shaft according to claim 1, it is characterized in that: described screw rod connects by ball pivot with connecting rod.
6. the spiral dismantling device of heavy pin shaft according to claim 1, is characterized in that: be provided with end cap on two end faces of described bearing.
7. the spiral dismantling device of heavy pin shaft according to claim 1, is characterized in that: be provided with the annular boom hoisting of being convenient to lift by crane on described connecting rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220564729 CN202964542U (en) | 2012-10-31 | 2012-10-31 | Screw mounting and dismounting tool for heavy pin shaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220564729 CN202964542U (en) | 2012-10-31 | 2012-10-31 | Screw mounting and dismounting tool for heavy pin shaft |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202964542U true CN202964542U (en) | 2013-06-05 |
Family
ID=48505670
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220564729 Expired - Lifetime CN202964542U (en) | 2012-10-31 | 2012-10-31 | Screw mounting and dismounting tool for heavy pin shaft |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202964542U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109551420A (en) * | 2018-09-28 | 2019-04-02 | 武汉船用机械有限责任公司 | A kind of dismounting tooling for stress pin |
-
2012
- 2012-10-31 CN CN 201220564729 patent/CN202964542U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109551420A (en) * | 2018-09-28 | 2019-04-02 | 武汉船用机械有限责任公司 | A kind of dismounting tooling for stress pin |
| CN109551420B (en) * | 2018-09-28 | 2021-11-16 | 武汉船用机械有限责任公司 | A dismouting frock for stress round pin |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130605 |