CN211976176U - Dynamic compaction machine and hydraulic rotating head anti-loosening structure thereof - Google Patents
Dynamic compaction machine and hydraulic rotating head anti-loosening structure thereof Download PDFInfo
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- CN211976176U CN211976176U CN202020228213.0U CN202020228213U CN211976176U CN 211976176 U CN211976176 U CN 211976176U CN 202020228213 U CN202020228213 U CN 202020228213U CN 211976176 U CN211976176 U CN 211976176U
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Abstract
The utility model discloses a dynamic compactor and hydraulic rotating head anti loosening structure thereof, hydraulic rotating head anti loosening structure includes: the rotating shaft is provided with a central positioning hole and a radial positioning hole; the locking plate is positioned on the shaft end surface of the rotating shaft and provided with a positioning hole and a fastening hole; the hydraulic rotary joint comprises an intermediate body, the intermediate body is provided with a first column section and a second column section along the axial direction, and the diameter of the first column section is smaller than that of the second column section; the first column section is used for penetrating through the positioning hole and then locking with the central positioning hole, and the second column section is used for matching with the positioning hole; the fastener is used for locking the coaxial fastening hole and the radial positioning hole so as to fixedly connect the rotating shaft, the locking plate and the middle body. Above-mentioned hydraulic pressure rotary head locking structure can ensure that the rotation axis is when the scram of scram, high frequency vibration and frequent just reversal switch, and hydraulic pressure rotary joint can not become flexible and drop.
Description
Technical Field
The utility model relates to a mechanical equipment technical field, in particular to dynamic compactor and hydraulic rotating head anti loosening structure thereof.
Background
At present, when a main hoisting mechanism of the dynamic compaction machine works, hydraulic oil required by the internal expansion type clutch is conveyed through an oil duct at the center of a rotating shaft. Since the rotating shaft is rotated, a hydraulic rotary joint needs to be attached to the shaft end of the rotating shaft.
The hydraulic rotary joint is usually in threaded connection with the rotating shaft, and when the dynamic compaction machine works, the main hoisting rotating shaft suddenly stops, vibrates at high frequency, and is frequently switched in forward and reverse rotation, so that the hydraulic rotary joint is loosened or falls off to cause great safety accidents due to the malfunction of a working machine.
At present, the traditional anti-loosening methods include the following methods, and the application range and summary are as follows:
firstly, an elastic gasket is added at the threaded connection part, so that the threaded connection structure is suitable for common threaded connection and is not suitable for occasions with sealing requirements;
secondly, a single-lug or double-lug stop washer is added on the end face of the threaded connection part, the mode is generally used for locking a nut, and the end face of the hydraulic rotary joint needs to be provided with a plane seal, so that the stop washer cannot be arranged on the end face;
thirdly, the anaerobic adhesive is coated on the screwing surface of the thread, the adhesive can be cured automatically after the nut is screwed down, the anaerobic adhesive is suitable for the static and stable common thread, and the adhesion and looseness prevention belong to permanent looseness prevention and are not suitable for the structure needing to be disassembled, assembled and maintained.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a dynamic compactor and hydraulic rotating head locking structure thereof can ensure that the rotation axis is in the scram of promptly starting, high frequency vibration and frequent positive reverse switching time, and hydraulic rotating joint can not become flexible and drop.
In order to achieve the above object, the utility model provides a hydraulic pressure rotating head anti loosening structure, include:
the rotating shaft is provided with a central positioning hole and a radial positioning hole;
the locking plate is positioned on the shaft end face of the rotating shaft and provided with a positioning hole and a fastening hole;
the hydraulic rotary joint comprises an intermediate body, the intermediate body is provided with a first column section and a second column section along the axial direction, and the sectional dimension of the first column section is smaller than that of the second column section; the first column section is used for being locked with the central positioning hole after penetrating through the positioning hole; after the positioning hole is sleeved on the second column section, the relative position of the positioning hole and the second column section is fixed;
and the fastening piece is used for locking the coaxial fastening hole and the radial positioning hole so as to fixedly connect the rotating shaft, the locking plate and the intermediate body.
Optionally, an annular groove is formed in the end face, far away from the first column section, of the second column section, and the cross-sectional size of the annular groove is smaller than that of the second column section; the positioning hole is used for being matched with the annular groove, so that the locking piece can rotate relative to the annular groove, and the fastening hole and the radial positioning hole are coaxial.
Optionally, a sealing gasket is further arranged between the end face of the shaft and the end face of the second column section, so that when the end face of the second column section abuts against the sealing gasket, the first column section is locked with the central positioning hole.
Optionally, the number of the fastening holes is multiple, and the distances between all the fastening holes and the axes of the positioning holes are equal.
Optionally, the distance between the axes of any two adjacent fastening holes is different.
Optionally, the positioning hole is specifically a polygonal hole, and a cross section of the second column section is matched with the positioning hole.
Optionally, the center positioning hole is specifically a threaded hole, and the first column section is provided with an external thread.
Optionally, the hydraulic swivel further comprises an outer housing rotatably connected to the intermediate body.
The utility model also provides a dynamic compactor, including foretell hydraulic rotating head anti loosening structure.
Compared with the prior art, the utility model provides a hydraulic pressure rotating head anti loosening structure sets up central locating hole and radial locating hole on the rotation axis, sets up the locking plate at the shaft end face of rotation axis, and the locking plate is provided with locating hole and fastening hole; after the first column section of the hydraulic rotary joint penetrates through the positioning hole, the first column section and the central positioning hole are locked, so that the hydraulic rotary joint and the rotating shaft are fixedly connected; the coaxial fastening hole and the radial positioning hole are locked by the fastening piece, so that the locking plate and the rotating shaft are fixedly connected, and the rotating shaft, the locking plate and the hydraulic rotating joint can be fixedly connected; the locking plate and the rotating shaft are convenient to process, simple in structure and free of space limitation, the rotating shaft can be guaranteed to be in emergency starting and emergency stopping, high-frequency vibration and frequent forward and reverse rotation switching, the hydraulic rotary joint is stable to use, and reliability is greatly improved.
The utility model provides a dynamic compactor with hydraulic rotating head anti loosening structure possesses above-mentioned beneficial effect, and this paper here will not be repeated.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a anti-loosening structure of a hydraulic rotating head according to an embodiment of the present invention;
FIG. 2 is a cross-sectional view taken along line A-A of FIG. 1;
FIG. 3 is a schematic end view of the rotating shaft of FIG. 1;
FIG. 4 is a schematic structural view of the locking tab of FIG. 1;
fig. 5 is a schematic structural view of the hydraulic rotary joint of fig. 1.
Wherein:
a rotating shaft 1, a center positioning hole 11, a radial positioning hole 12, a shaft end surface 13,
A locking plate 2, a positioning hole 21, a fastening hole 22,
The hydraulic rotary joint 3, the middle body 31, the outer shell 32, the first column section 311, the second column section 312, the annular groove 313,
A fastener 4,
And a gasket 5.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
In order to make the technical field of the present invention better understand, the present invention will be described in detail with reference to the accompanying drawings and the detailed description.
The embodiment of the utility model provides a hydraulic rotating head anti loosening structure, like specification attached figure 1 to figure 5, including rotation axis 1, locking plate 2, hydraulic rotating joint 3, fastener 4 and sealed pad 5.
The shaft end face 13 of the rotating shaft 1 is provided with a central positioning hole 11 and a radial positioning hole 12, the circle center of the central positioning hole 11 is overlapped with the rotating axis of the rotating shaft 1, and the distance between the radial positioning hole 12 and the central positioning hole 11 can be determined according to actual requirements.
The locking plate 2 can be a cylindrical sheet and made of metal, the locking plate 2 is positioned on the shaft end surface 13, and the locking plate 2 is provided with a positioning hole 21 and a fastening hole 22; the center of the positioning hole 21 can coincide with the centroid of the locking plate 2.
The hydraulic rotary joint 3 comprises a middle body 31 and an outer shell 32, the middle body 31 and the outer shell 32 can independently rotate, the middle body 31 and the outer shell 32 can be formed by a bearing, a sealing piece, a clamping spring and the like, and the outer shell 32 can be provided with a threaded hole for connecting an oil inlet pipe.
The intermediate body 31 is provided with a first column section 311, a second column section 312 and a third column section along the axial direction, the first column section 311, the second column section 312 and the third column section are sequentially connected, and the intermediate body 31 can be integrally formed.
The third column section is the annular groove 313, the cross-sectional dimension of the first column section 311 is smaller than that of the second column section 312, and the cross-sectional dimension of the annular groove 313 is smaller than that of the second column section 312.
After the positioning hole 21 is sleeved on the second column section 312, the relative position of the positioning hole 21 and the second column section 312 is fixed; that is, the shape and size of the positioning hole 21 should be the same as the shape and size of the cross section of the second column section 312.
In the installation process, the locking plate 2 can be firstly positioned on the shaft end surface 13, so that the center of the positioning hole 21 coincides with the center of the central positioning hole 11, then the first column section 311 is used for penetrating through the positioning hole 21, the positioning hole 21 and the central positioning hole 11 are used for locking, the second column section 312 is matched with the positioning hole 21, and the second column section 312 is sleeved in the positioning hole 21; finally, the coaxial fastening hole 22 and the radial positioning hole 12 are locked by the fastening piece 4, so that the fixed connection of the rotating shaft 1, the locking plate 2 and the middle body 31 can be realized; when the rotating shaft 1 is switched between rapid start and rapid stop, high-frequency vibration and frequent forward and reverse rotation, the locking plate 2 and the intermediate body 31 can be synchronously driven to rotate, so that the hydraulic rotating joint 3 is stably and reliably locked.
In order to facilitate adjustment of the positional relationship between the lock plate 2 and the rotary shaft 1, the positioning hole 21 may be first placed at the annular groove 313, and since the sectional dimension of the annular groove 313 is smaller than that of the second column section 312, the lock plate 2 may be rotated relative to the annular groove 313, thereby achieving coaxiality of both the fastening hole 22 and the radial positioning hole 12.
Specifically, when the hydraulic rotary joint 3 is installed, the locking plate 2 can be sleeved in the annular groove 313, that is, the positioning hole 21 of the locking plate 2 is sleeved on the periphery of the annular groove 313; after the hydraulic rotary joint 3 is screwed, the locking plate 2 (the positioning hole 21) rotates at the annular groove 313, one fastening hole 22 of the locking plate 2 is coaxial with the radial positioning hole 12 of the rotating shaft 1, then the positioning hole 21 of the locking plate 2 is matched with the second section 312 to form shaft hole matching, and thus the coaxial fastening hole 22 and the radial positioning hole 12 can be locked by the fastening piece 4.
Wherein, the second column 312 can be specifically the hexagonal column section, and the locating hole 21 can be set up to the hexagonal hole correspondingly, so, after locating hole 21 and second column 312 cooperate, can not rotate between locking plate 2 and the second column 312. Of course, the second column section 312 may be specifically a triangular column section or a rectangular column section, and the positioning hole 21 is correspondingly provided as a triangular hole or a rectangular hole.
A sealing gasket 5 is arranged between the end surface 13 of the shaft and the end surface of the second column section 312, and obviously, the sealing gasket 5 is provided with a through hole; after the first column section 311 sequentially penetrates through the positioning hole 21 of the locking plate 2 and the through hole of the sealing gasket 5, the first column section 311 sequentially moves towards the direction of the central positioning hole 11, and when the end surface of the second column section 312 abuts against the sealing gasket 5, the first column section 311 and the central positioning hole 11 are locked.
The number of the fastening holes 22 can be set to be a plurality, and the distances between all the fastening holes 22 and the axes of the positioning holes 21 are equal. That is, the centers of all the fastening holes 22 can be enclosed into a circle, and the center of the circle coincides with the center of the positioning hole 21.
The distance between the axes of any two adjacent fastening holes 22 is different, as shown in the specification and figure 4; taking eight fastening holes 22 as an example, the eight fastening holes 22 can be unevenly arranged on the circumference of a certain distance away from the center of the lock plate 2, and the included angles between the connecting lines from the centers of two adjacent fastening holes 22 to the center of the lock plate 2 are respectively 30 °, 34 °, 38 °, 42 °, 46 °, 50 °, 54 ° and 66 °, so that when the hydraulic rotary joint 3 is screwed down at any position, one of the eight fastening holes 22 can be coaxial with the radial positioning hole 12, and fastening can be realized.
The positioning hole 21 is specifically a polygonal hole, the cross section of the second column section 312 matches with the positioning hole 21, referring to fig. 4 in the specification, the positioning hole 21 is a hexagonal hole, the cross section of the second column section 312 is also a hexagon, the size of the positioning hole 21 is the same as the size of the cross section of the second column section 312, or the size of the positioning hole 21 is slightly larger than the size of the cross section of the second column section 312.
When the second column section 312 and the positioning hole 21 are matched in the shaft hole, the second column section 312 and the positioning hole 21 cannot rotate relatively, or the relative rotation angle between the second column section 312 and the positioning hole 21 is negligible, so that the positioning reliability of the second column section 312 and the positioning hole 21 is further improved.
The central positioning hole 11 may be a threaded hole, and the first column section 311 is provided with an external thread; that is, the first column section 311 rotates relative to the center positioning hole 11 to achieve fastening of the center positioning hole 11 and the first column section 311; the radial positioning hole 12 can also be set as a threaded hole, the fastening piece 4 can be specifically a bolt, after the body of the bolt penetrates through the fastening hole 22, the body of the bolt and the radial positioning hole 12 are locked, the head of the bolt is abutted against the end face of the fastening hole 22, so that the locking plate 2 is fixed on the shaft end face 13, and the position fixing of the rotating shaft 1 and the locking plate 2 is ensured.
The utility model provides a dynamic compaction machine with a hydraulic rotating head anti-loosening structure, which comprises the hydraulic rotating head anti-loosening structure described in the above embodiment; other parts of the dynamic compactor can be referred to the prior art and are not unfolded herein.
It is noted that, in this specification, relational terms such as first and second, and the like are used solely to distinguish one entity from another entity without necessarily requiring or implying any actual such relationship or order between such entities.
It is right above the utility model provides a dynamic compactor and hydraulic rotating head locking structure thereof have carried out the detailed introduction. The principles and embodiments of the present invention have been explained herein using specific examples, and the above descriptions of the embodiments are only used to help understand the method and its core ideas of the present invention. It should be noted that, for those skilled in the art, without departing from the principle of the present invention, the present invention can be further modified and modified, and such modifications and modifications also fall within the protection scope of the appended claims.
Claims (9)
1. A hydraulic rotating head anti-loosening structure, comprising:
the rotary shaft (1), the said rotary shaft (1) has central locating hole (11) and radial locating hole (12);
the locking plate (2), the locking plate (2) is located on the shaft end face (13) of the rotating shaft (1), and the locking plate (2) is provided with a positioning hole (21) and a fastening hole (22);
the hydraulic rotary joint (3) comprises an intermediate body (31), the intermediate body (31) is provided with a first column section (311) and a second column section (312) along the axial direction, and the sectional dimension of the first column section (311) is smaller than that of the second column section (312); the first column section (311) is used for being locked with the central positioning hole (11) after being penetrated through the positioning hole (21); after the positioning hole (21) is sleeved on the second section (312), the relative position of the positioning hole (21) and the second section (312) is fixed;
the fastening piece (4) is used for fastening the coaxial fastening hole (22) and the radial positioning hole (12) so as to fixedly connect the rotating shaft (1), the locking plate (2) and the middle body (31).
2. The fluid swivel head anti-loosening structure according to claim 1, wherein an end surface of the second column section (312) remote from the first column section (311) is provided with an annular groove (313), the annular groove (313) having a cross-sectional dimension smaller than the cross-sectional dimension of the second column section (312); the positioning hole (21) is used for being matched with the annular groove (313) so that the locking piece (2) can rotate relative to the annular groove (313) to achieve the coaxiality of the fastening hole (22) and the radial positioning hole (12).
3. Hydraulically rotating head locking arrangement according to claim 1, characterized in that a sealing gasket (5) is further provided between the shaft end face (13) and the end face of the second column section (312), so that the first column section (311) and the centrally located bore (11) are locked when the end face of the second column section (312) and the sealing gasket (5) are against each other.
4. The structure of claim 1, wherein the number of the fastening holes (22) is multiple, and all the fastening holes (22) are spaced from the axis of the positioning hole (21) by the same distance.
5. The hydro-rotator head anti-loosening structure according to claim 4, wherein the interval between the axial centers of any two adjacent fastening holes (22) is different.
6. The fluid swivel locking arrangement according to any of claims 1-5, wherein the positioning hole (21) is embodied as a polygonal hole, and the cross section of the second section (312) is matched with the positioning hole (21).
7. The hydrorotary head looseness prevention structure of claim 6, wherein said centrally located hole (11) is embodied as a threaded hole, and said first column section (311) is provided with an external thread.
8. The hydrorotary head looseness prevention structure according to claim 7, wherein said hydrorotary joint (3) further comprises an outer housing (32), said outer housing (32) being rotatably connected to said intermediate body (31).
9. A dynamic compaction machine comprising a hydraulic swivel head anti-loosening structure according to any one of claims 1 to 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020228213.0U CN211976176U (en) | 2020-02-28 | 2020-02-28 | Dynamic compaction machine and hydraulic rotating head anti-loosening structure thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020228213.0U CN211976176U (en) | 2020-02-28 | 2020-02-28 | Dynamic compaction machine and hydraulic rotating head anti-loosening structure thereof |
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| CN211976176U true CN211976176U (en) | 2020-11-20 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111219544A (en) * | 2020-02-28 | 2020-06-02 | 杭叉集团股份有限公司 | A kind of dynamic compaction machine and its hydraulic rotary head anti-loosening structure |
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2020
- 2020-02-28 CN CN202020228213.0U patent/CN211976176U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111219544A (en) * | 2020-02-28 | 2020-06-02 | 杭叉集团股份有限公司 | A kind of dynamic compaction machine and its hydraulic rotary head anti-loosening structure |
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