CN113321140B - Hydraulic oil tank installation positioning structure and engineering crane - Google Patents
Hydraulic oil tank installation positioning structure and engineering crane Download PDFInfo
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- CN113321140B CN113321140B CN202110735767.9A CN202110735767A CN113321140B CN 113321140 B CN113321140 B CN 113321140B CN 202110735767 A CN202110735767 A CN 202110735767A CN 113321140 B CN113321140 B CN 113321140B
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- positioning
- oil tank
- hydraulic oil
- limiting
- turntable
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
- B66C23/62—Constructional features or details
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
- B66C23/62—Constructional features or details
- B66C23/84—Slewing gear
Abstract
The invention relates to the technical field of engineering equipment, in particular to a hydraulic oil tank installation positioning structure and an engineering crane, which comprise a turntable on an operation equipment and a hydraulic oil tank used for being installed on the turntable, wherein a plurality of limiting mechanisms are arranged on the turntable, a plurality of positioning structures respectively corresponding to the limiting mechanisms are formed on the hydraulic oil tank, and the positions of the positioning structures are respectively limited by the limiting mechanisms so as to limit the installation positions of the hydraulic oil tank in the left-right direction, the up-down direction and the front-back direction. The hydraulic oil tank installation positioning structure disclosed by the invention can be beneficial to pre-positioning the large-tonnage hydraulic oil tank on an operation instrument, so that the hydraulic oil tank can be accurately positioned to a preset installation position, the subsequent installation and fixation of the large-tonnage hydraulic oil tank can be facilitated, the installation difficulty of the large-tonnage hydraulic oil tank is effectively reduced, and the installation efficiency of the large-tonnage hydraulic oil tank is obviously improved.
Description
Technical Field
The invention relates to the technical field of engineering equipment, in particular to a hydraulic oil tank installation positioning structure and an engineering crane.
Background
With the rapid development of economic construction in China, the market is more and more widely applied to engineering machinery, and with the continuous improvement of the tonnage of the engineering machinery, the application of a hydraulic system in the field of engineering machinery is increasingly increased. The hydraulic oil tank is an important component element of the hydraulic system, and is generally designed into a box structure and formed by welding thin plates. The hydraulic oil tank is mainly used for storing hydraulic oil, and the hydraulic oil is a medium for transferring energy in a hydraulic system and plays a vital role in the hydraulic system.
Hydraulic oil in engineering machinery is widely applied, and the volume of a hydraulic oil tank is larger. When the tonnage of the crane is larger, the volume of the hydraulic oil tank is larger, and the hydraulic oil tank is limited by the width and the height of the whole crane, and for the super-tonnage crane, the hydraulic oil tank is generally designed into a long flat box type structure. When the hydraulic oil tank is mounted on the turntable of the host machine, the mounting holes on the hydraulic oil tank are difficult to align with the mounting holes of the turntable on the host machine, and the consistency of the oil tank relative to the host machine is more difficult to ensure.
In order to ensure that the installation holes on the hydraulic oil tank and the turntable can be aligned and ensure the installation consistency of the hydraulic oil tank, the existing modes have two types: 1. carrying out matched welding on the mounting hole of the hydraulic oil tank and the mounting hole on the turntable; 2. and (5) processing the five-surface body on the mounting hole on the hydraulic oil tank and the mounting hole on the rotary table respectively. These two ways clearly add significant manufacturing difficulties, cycle time and cost.
The related patent discloses a hydraulic oil tank and a crane applied by the same, and the patent discloses a hydraulic oil tank of engineering machinery, which comprises an oil tank body and a cantilever type bracket; one end of the bracket is fixedly connected with the mounting surface of the oil tank body, and the other end of the bracket is detachably and fixedly connected with the mounting frame of the engineering machine. Before the hydraulic oil tank is installed, the engineering machinery does not need to install a bracket on the installation frame, inconvenience is not brought to operations in other aspects of the engineering machinery, and the bracket of the hydraulic oil tank does not generate deformation affecting installation. The hydraulic oil tank is also provided with a reinforcing device which is positioned in the oil tank body and fixedly connected with the bottom surface of the oil tank body, the mounting surface and the opposite surface of the mounting surface, the oil tank body is connected into a whole, and the force born by the mounting surface is transferred to other surfaces of the oil tank body, so that the whole oil tank body is uniformly stressed. However, the hydraulic oil tank installation mode of the prior patent has obvious defects that: the cantilever beam bracket connected in the middle is not beneficial to the whole supporting stress of the oil tank in practice, and the transition bracket is arranged between the oil tank and the host machine, so that the structure is complex, and even more, in practical application, because the hydraulic oil tank of the large-sized operation device belongs to a large-volume and large-tonnage hydraulic oil tank, the large-tonnage hydraulic oil tank needs to be accurately moved to a preset installation position, and especially, each screw hole of the hydraulic oil tank corresponds to each screw hole on the operation device accurately, so that the prior art lacks consideration to pre-position the large-tonnage hydraulic oil tank before fixed installation, so that the installation process of the large-tonnage hydraulic oil tank is difficult to position, and the installation efficiency is low.
Disclosure of Invention
The invention provides a hydraulic oil tank installation positioning structure which can help to pre-position a large-tonnage hydraulic oil tank on an operation instrument, so that the hydraulic oil tank can be accurately positioned to a preset installation position, thereby being convenient for the subsequent installation and fixation of the large-tonnage hydraulic oil tank, effectively reducing the installation difficulty of the large-tonnage hydraulic oil tank and obviously improving the installation efficiency of the large-tonnage hydraulic oil tank.
The invention provides a hydraulic oil tank installation positioning structure, which comprises a turntable on an operation instrument and a hydraulic oil tank used for being installed on the turntable, and is characterized in that a plurality of limiting mechanisms are arranged on the turntable, a plurality of positioning structures respectively corresponding to the limiting mechanisms are formed on the hydraulic oil tank, and the positions of the positioning structures are respectively limited by the limiting mechanisms so as to limit the installation positions of the hydraulic oil tank in the left-right direction, the up-down direction and the front-back direction.
According to the hydraulic oil tank installation positioning structure provided by the invention, each limiting mechanism comprises a limiting vertical face, a limiting bearing face and a limiting connecting piece, the plurality of positioning structures comprise a plurality of positioning faces, the limiting vertical face, the limiting bearing face and the limiting connecting piece are respectively abutted against each positioning face from the left-right direction, the up-down direction and the front-back direction, and the positions of each positioning face are respectively limited by the limiting vertical face, the limiting bearing face and the limiting connecting piece so as to limit the installation positions of the hydraulic oil tank in the left-right direction, the up-down direction and the front-back direction.
According to the hydraulic oil tank installation positioning structure provided by the invention, each positioning surface comprises a positioning side surface formed on the hydraulic oil tank and facing the turntable, a positioning bottom surface formed at the bottom of the hydraulic oil tank, and an annular positioning surface used for being matched and sleeved with the limiting connector, wherein the limiting vertical surface and the positioning side surface are matched and correspond to each other, and the limiting bearing surface faces upwards and is matched and supports the positioning bottom surface.
According to the hydraulic oil tank installation positioning structure provided by the invention, the turntable is provided with the positioning plate, the positioning plate is provided with at least one limiting hole, the outside of the hydraulic oil tank is provided with the positioning hole corresponding to the limiting hole, the annular positioning surface is formed in the positioning hole, and the limiting connector is a limiting pin sleeved in the limiting hole and the positioning hole in a matched manner.
According to the hydraulic oil tank installation positioning structure provided by the invention, the limiting pin is a threaded pin, and the limiting hole and/or the positioning hole are respectively provided with an installation thread for being in threaded connection with the threaded pin.
According to the hydraulic oil tank installation positioning structure provided by the invention, at least one L-shaped block is arranged on the turntable, and the limiting vertical surface and the limiting bearing surface are respectively formed on the surfaces of the L-shaped blocks.
According to the hydraulic oil tank installation positioning structure provided by the invention, the number of the limiting vertical faces is at least one, all the limiting vertical faces are on the same plane, and the positioning side faces are flat side faces which are matched with the corresponding limiting vertical faces.
According to the hydraulic oil tank installation positioning structure provided by the invention, the number of the limiting bearing surfaces is at least one, all the limiting bearing surfaces are on the same plane, and the positioning bottom surface is a flat bottom surface which is matched with each limiting bearing surface.
According to the hydraulic oil tank installation positioning structure provided by the invention, each positioning surface is manufactured by laser cutting.
According to the hydraulic oil tank installation positioning structure provided by the invention, each positioning surface comprises the positioning side surface formed on the inner side of the hydraulic oil tank, the positioning bottom surface formed on the bottom of the hydraulic oil tank and the positioning plane, wherein the positioning plane, the positioning side surface and the positioning bottom surface are mutually perpendicular in space, the limiting vertical surface corresponds to the positioning side surface in a mutually matched manner, the limiting bearing surface is upwards matched and supports the positioning bottom surface, and the positioning plane corresponds to the surface of the limiting connector in a mutually matched manner.
According to the hydraulic oil tank installation positioning structure, the plurality of limiting mechanisms are arranged on the turntable of the operation device in advance, and the plurality of positioning structures corresponding to the limiting mechanisms are also formed on the hydraulic oil tank in advance, so that before the hydraulic oil tank with large tonnage is fixedly installed, the installation positions of the hydraulic oil tank in the left-right direction, the up-down direction and the front-back direction can be limited by limiting the positions of the positioning structures through the limiting mechanisms, the hydraulic oil tank with large volume and large tonnage can be accurately positioned on the operation device in advance, the hydraulic oil tank with large tonnage can accurately reach the preset installation position on the turntable, the installation and the fixation of the hydraulic oil tank with large tonnage can be conveniently and subsequently realized, the installation difficulty of the hydraulic oil tank with large tonnage is effectively reduced, and the installation efficiency of the hydraulic oil tank with large tonnage is obviously improved.
The invention also provides an engineering crane, which comprises the hydraulic oil tank installation positioning structure, and can effectively reduce the installation difficulty of the large-tonnage hydraulic oil tank on the engineering crane.
Drawings
In order to more clearly illustrate the invention or the technical solutions of the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the invention, and other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a perspective view of a turntable according to a first embodiment of the present invention;
fig. 2 is a perspective view of a hydraulic tank according to a first embodiment of the present invention;
FIG. 3 is a schematic view of the assembly of the turntable and the hydraulic tank of the present invention;
FIG. 4 is a perspective view of a turntable according to a first embodiment of the present invention;
FIG. 5 is an enlarged view of a portion of a turntable according to a first embodiment of the present invention;
fig. 6 is a perspective view of a hydraulic tank according to a first embodiment of the present invention;
fig. 7 is a perspective view of a hydraulic tank according to a first embodiment of the present invention;
FIG. 8 is a perspective view of a turntable according to a first embodiment of the present invention;
FIG. 9 is an enlarged view of a portion of a turntable in accordance with an embodiment of the present invention;
fig. 10 is a perspective view of a hydraulic tank according to the first embodiment of the present invention;
FIG. 11 is a perspective view of a turntable according to a first embodiment of the present invention;
FIG. 12 is an enlarged view of a portion of a turntable in accordance with an embodiment of the present invention;
fig. 13 is a perspective view of a hydraulic tank in a second embodiment of the invention;
fig. 14 is a perspective view of a turntable in a second embodiment of the present invention;
fig. 15 is a partial enlarged view of a turntable in a second embodiment of the present invention.
Reference numerals:
100: a limiting mechanism; 200: a positioning structure; 201: a positioning surface;
1: a turntable; 2: a hydraulic oil tank; 3: limiting vertical faces;
4: a limit bearing surface; 5: a limit connector; 6: positioning the side surface;
7: positioning the bottom surface; 8: an annular positioning surface; 9: a positioning plate;
10: a limiting hole; 11: positioning holes; 12: a limiting pin;
13: an L-shaped block; 81: and (5) positioning a plane.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings, and it is apparent that the described embodiments are some embodiments of the present invention, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Example 1
A hydraulic-tank-mounting positioning structure and an engineering crane of the present invention will be described below with reference to fig. 1 to 3, including a turntable 1 and a hydraulic tank 2, the turntable 1 being for mounting on a work implement (not shown), the hydraulic tank 2 being for mounting on the turntable 1, in addition, a plurality of stopper mechanisms 100 being pre-mounted on the turntable 1, and a plurality of positioning structures 200 being pre-formed on the hydraulic tank 2 by way of pre-processing, each of the positioning structures 200 corresponding to each of the stopper mechanisms 100, the hydraulic tank 2 having a large tonnage being moved onto the turntable 1 in advance before the hydraulic tank 2 is fixedly mounted, and the positions of each of the positioning structures 200 being restricted by each of the stopper mechanisms 100 to define the mounting positions of the hydraulic tank 2 in the X-direction (left-right direction), the Z-direction (up-down direction), and the Y-direction (front-rear direction), respectively.
In this embodiment, since the plurality of limiting mechanisms 100 are mounted on the turntable 1 of the working apparatus in advance, and the plurality of positioning structures 200 corresponding to the respective limiting mechanisms 100 are also formed on the hydraulic oil tank 2 in advance, before the large-tonnage hydraulic oil tank 2 is fixedly mounted, the mounting positions of the hydraulic oil tank 2 in the X direction (left-right direction), the Z direction (up-down direction) and the Y direction (front-rear direction) can be limited by limiting the positions of the respective positioning structures 200 by the respective limiting mechanisms 100, so that the large-tonnage hydraulic oil tank 2 can be accurately positioned in advance on the working apparatus, and the large-tonnage hydraulic oil tank 2 can accurately reach the predetermined mounting positions on the turntable 1, thereby being convenient for subsequent mounting and fixing (such as welding and bolting) of the large-tonnage hydraulic oil tank 2, effectively reducing the mounting difficulty of the large-tonnage hydraulic oil tank, and obviously improving the mounting efficiency of the large-tonnage hydraulic oil tank.
As an alternative to this embodiment, each positioning surface 201 is made by laser cutting, and each positioning surface 201 is cut out on the hydraulic oil tank 2 by a processing manner of laser cutting, so that the relative dimensional accuracy of each positioning surface 201 can be further ensured, and thus, accurate positioning of the hydraulic oil tank 2 on the turntable 1 can be ensured.
As an alternative specific solution to this embodiment, as shown in fig. 4 to 6, each of the stopper mechanisms 100 includes a stopper elevation 3, a stopper support surface 4, and a stopper 5, the extending direction of the stopper 5 is perpendicular to the stopper elevation 3, each of the positioning structures 200 formed on the hydraulic tank 2 is a plurality of positioning surfaces 201, each of the positioning surfaces 201 is capable of ensuring the accuracy of the relative dimensions thereof by laser blanking, the stopper elevation 3, the stopper support surface 4, and the stopper 5 are abutted against each of the positioning surfaces 201 from the X direction (left-right direction), the Z direction (up-down direction), and the Y direction (front-rear direction), respectively, and before the hydraulic tank 2 is fixedly mounted, the hydraulic tank 2 of large tonnage is moved onto the turntable 1 in advance, and the mounting position of the hydraulic tank 2 in the X direction (left-right direction) is defined by the position restriction of the stopper elevation 3 to the corresponding positioning surface 201, the mounting position of the hydraulic tank 2 in the Z direction (up-down direction) is defined by the position restriction of the stopper support surface 4 to the corresponding positioning surface 201, and the mounting position of the hydraulic tank 2 in the front direction (front-rear direction) is defined by the position restriction of the stopper 5 to the corresponding positioning surface 201 to the position of the hydraulic tank 2. According to the structure, on one hand, the limitation of the limiting vertical face 3, the limiting bearing face 4 and the limiting connecting piece 5 on each positioning face 201 is achieved, on the other hand, the positioning faces 201 are intensively processed on the hydraulic oil tank 2, so that positioning standards in the X, Y, Z directions can be concentrated on the same part on the inner side face of the hydraulic oil tank 2, the relative dimensional precision of each positioning face 201 is guaranteed through laser cutting, the processing of pentahedrons on the hydraulic oil tank is omitted to guarantee the relative size of the positioning faces, and therefore positioning between the hydraulic oil tank 2 and the turntable 1 is not needed to depend on pentahedrons processing or on-site welding, processing cost is saved, and the installation efficiency of the large-tonnage hydraulic oil tank 2 is effectively improved.
As an alternative specific solution to this embodiment, as shown in fig. 7, each positioning surface 201 includes a positioning side surface 6 formed on the inner side of the hydraulic oil tank 2, a positioning bottom surface 7 formed on the bottom of the hydraulic oil tank 2, and an annular positioning surface 8 for matching and sleeving the limiting connector 5, where the limiting vertical surface 3 and the positioning side surface 6 are matched and correspond to each other, and the limiting bearing surface 4 is matched and supported upwards to the positioning bottom surface 7.
The position of the positioning side surface 6 is limited in the X direction by the limiting elevation 3 to limit the installation position of the hydraulic oil tank 2 in the X direction (left-right direction), the installation position of the hydraulic oil tank 2 in the Z direction (up-down direction) is limited by the supporting of the positioning bottom surface 7 by the limiting bearing surface 4, in addition, at least one annular positioning surface 8 is processed on the hydraulic oil tank 2 in an open pore mode, and the limiting connector 5 can be sleeved in the annular positioning surface 8, so that the installation position of the hydraulic oil tank 2 in the Y direction (front-back direction) can be limited.
Specifically, the positioning side surface 6 and the positioning bottom surface 7 on the hydraulic oil tank 2 can be cut and blanked by laser to ensure the precision of the relative sizes.
As an alternative specific scheme for this embodiment, as shown in fig. 8 to 10, a positioning plate 9 is mounted on the turntable 1, a plurality of limiting holes 10 are formed on the positioning plate 9, positioning holes 11 corresponding to the limiting holes 10 are formed outside the hydraulic oil tank 2, an annular positioning surface 8 is formed in the positioning holes 11, and a limiting connector 5 is a limiting pin 12 which is sleeved in the limiting holes 10 and the positioning holes 11 in a matching manner. The limiting pins 12 are simultaneously inserted into the limiting holes 10 and the positioning holes 11, so that the installation position of the hydraulic oil tank 2 in the Y direction (front-rear direction) can be more quickly and conveniently limited, and the installation efficiency can be further improved.
As an alternative to this embodiment, the limiting pin 12 is a threaded pin, and the limiting hole 10 and/or the positioning hole 11 are respectively formed with mounting threads for screwing the threaded pin. By means of the threaded connection, the limiting pin 12 can be fixedly installed in the limiting hole 10 and the positioning hole 11, and the hydraulic oil tank 2 can be effectively and stably fixed in advance.
As an alternative specific scheme for this embodiment, as shown in fig. 11 to 12, a plurality of L-shaped blocks 13 are fixed on the turntable 1, the limit elevation 3 and the limit bearing surface 4 are respectively formed on the surfaces of the L-shaped blocks 13, the limit bearing surface 4 is formed on the horizontal plane of the L-shaped blocks 13, and the limit elevation 3 is formed on the vertical plane of the L-shaped blocks 13, so that the limit elevation 3 and the limit bearing surface 4 can be conveniently and simultaneously constructed on the turntable 1 through the L-shaped blocks 13, which is more beneficial to processing.
Optionally, the limiting vertical surface 3 and the limiting bearing surface 4 on the L-shaped block 13 can be formed by machining after welding, which is more beneficial to improving the position accuracy of the plane.
As an alternative specific solution to this embodiment, the number of the limiting vertical faces 3 is plural, specifically, the number of the limiting vertical faces can be realized by setting plural L-shaped blocks 13, each of the limiting vertical faces 3 is on the same plane, and the positioning side faces 6 are flat side faces which are matched together to correspond to each of the limiting vertical faces 3, so that the positioning side faces 6 can be limited by the simultaneous matching of the plural limiting vertical faces 3, and the stable positioning of the hydraulic oil tank 2 is facilitated.
As an alternative specific solution to this embodiment, the number of the limiting bearing surfaces 4 is plural, specifically, may be implemented by setting a plurality of L-shaped blocks 13, where each of the limiting bearing surfaces 4 is located on the same plane, and the positioning bottom surface 7 is a flat bottom surface that is matched together and corresponds to each of the limiting bearing surfaces 4. Therefore, the positioning bottom surface 7 can be supported by a plurality of limit bearing surfaces 4 in an upward matching way, and the stable positioning and stable support of the hydraulic oil tank 2 are more facilitated.
Example two
The difference between this embodiment and the embodiment is that, as shown in fig. 13 to 15, each positioning surface 201 includes a positioning side surface 6 formed on the inner side of the hydraulic oil tank 2, a positioning bottom surface 7 formed on the bottom of the hydraulic oil tank 2, and a positioning plane 81, the positioning side surface 6, and the positioning bottom surface 7 are spatially perpendicular to each other, the positioning vertical surface 3 and the positioning side surface 6 are mutually matched and correspond, the positioning bearing surface 4 is upwards matched and supports the positioning bottom surface 7, and the positioning plane 81 is mutually matched and corresponds to the surface of the positioning connector 5.
The position of the positioning side surface 6 is limited in the X direction by the limit elevation 3 to define the installation position of the hydraulic oil tank 2 in the X direction (left-right direction), the installation position of the hydraulic oil tank 2 in the Z direction (up-down direction) is defined by the support of the positioning bottom surface 7 by the limit bearing surface 4 upward, and the position of the positioning plane 81 is limited in the Y direction by the front side surface of the limit joint 5 to define the installation position of the hydraulic oil tank 2 in the Y direction (front-rear direction).
In addition to the above, the embodiment also provides an engineering crane, which comprises the hydraulic oil tank installation positioning structure, and can effectively reduce the installation difficulty of the large-tonnage hydraulic oil tank on the engineering crane.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention, and are not limiting; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention.
Claims (9)
1. The hydraulic oil tank installation positioning structure comprises a turntable on an operation instrument and a hydraulic oil tank used for being installed on the turntable, and is characterized in that a plurality of limiting mechanisms are arranged on the turntable, a plurality of positioning structures corresponding to the limiting mechanisms are formed on the hydraulic oil tank, each limiting mechanism comprises a limiting vertical face, a limiting bearing face and a limiting connecting piece, the positioning structures comprise a plurality of positioning faces, the limiting vertical face, the limiting bearing face and the limiting connecting piece are respectively abutted with the positioning faces from the left and right direction, the up and down direction and the front and back direction, and the positions of the positioning faces are limited by the limiting vertical face, the limiting bearing face and the limiting connecting piece to limit the installation positions of the hydraulic oil tank in the left and right direction, the up and down direction and the front and back direction;
each locating surface comprises a locating side surface formed on the hydraulic oil tank and facing the turntable, a locating bottom surface formed at the bottom of the hydraulic oil tank and an annular locating surface used for being matched and sleeved with the limiting connector, wherein the limiting vertical surface corresponds to the locating side surface in a matched mode, and the limiting bearing surface is matched and supported on the locating bottom surface.
2. The hydraulic oil tank installation positioning structure according to claim 1, wherein a positioning plate is arranged on the turntable, at least one limiting hole is formed in the positioning plate, a positioning hole corresponding to the limiting hole is formed in the outside of the hydraulic oil tank, the annular positioning surface is formed in the positioning hole, and the limiting connector is a limiting pin matched and sleeved in the limiting hole and the positioning hole.
3. The hydraulic oil tank mounting and positioning structure according to claim 2, wherein the limiting pin is a threaded pin, and mounting threads for threaded connection with the threaded pin are formed in the limiting hole and/or the positioning hole, respectively.
4. The hydraulic oil tank installation positioning structure according to claim 1, wherein at least one L-shaped block is arranged on the turntable, and the limit elevation and the limit bearing surface are respectively formed on the surfaces of the L-shaped block.
5. The hydraulic oil tank mounting and positioning structure according to claim 1, wherein the number of the limit elevation is at least one, and each limit elevation is on the same plane.
6. The hydraulic oil tank mounting and positioning structure according to claim 1, wherein the number of the limit bearing surfaces is at least one, and each limit bearing surface is on the same plane.
7. The hydraulic tank mounting and positioning structure according to claim 1, wherein each of the positioning surfaces is made by laser cutting.
8. The hydraulic oil tank mounting and positioning structure according to claim 1, wherein each positioning surface comprises a positioning side surface formed on the inner side of the hydraulic oil tank, a positioning bottom surface formed on the bottom of the hydraulic oil tank, and a positioning plane, the positioning side surface and the positioning bottom surface are mutually perpendicular in space, the limiting elevation corresponds to the positioning side surface in a mutually matched manner, the limiting bearing surface corresponds to the positioning bottom surface in a mutually matched manner, and the positioning plane corresponds to the surface of the limiting connector in a mutually matched manner.
9. An engineering crane comprising the hydraulic oil tank mounting and positioning structure according to any one of claims 1 to 8.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110735767.9A CN113321140B (en) | 2021-06-30 | 2021-06-30 | Hydraulic oil tank installation positioning structure and engineering crane |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110735767.9A CN113321140B (en) | 2021-06-30 | 2021-06-30 | Hydraulic oil tank installation positioning structure and engineering crane |
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| CN113321140A CN113321140A (en) | 2021-08-31 |
| CN113321140B true CN113321140B (en) | 2023-07-14 |
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| JP2000255999A (en) * | 1999-03-09 | 2000-09-19 | Hitachi Constr Mach Co Ltd | Mounting structure of boom derricking cylinder of construction machine |
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| TWM473460U (en) * | 2013-11-22 | 2014-03-01 | Taiwan Chelic Corp | Rotary cylinder structure improvement |
| CN108002251A (en) * | 2018-01-11 | 2018-05-08 | 国家电网公司 | A kind of narrow space crane |
| CN208702834U (en) * | 2018-05-25 | 2019-04-05 | 潍坊海王金泰新材料有限公司 | Oil cylinder limiter |
| CN209229010U (en) * | 2018-10-29 | 2019-08-09 | 宁波南方减震器制造有限公司 | A kind of modified wear sleeve |
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2021
- 2021-06-30 CN CN202110735767.9A patent/CN113321140B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000255999A (en) * | 1999-03-09 | 2000-09-19 | Hitachi Constr Mach Co Ltd | Mounting structure of boom derricking cylinder of construction machine |
| CN2695425Y (en) * | 2004-04-07 | 2005-04-27 | 徐州重型机械厂 | Assembling self-disassembling balancing weight device |
| CN202729668U (en) * | 2012-07-16 | 2013-02-13 | 徐工集团工程机械股份有限公司 | Cross beam, rotary table and crane |
| CN202704894U (en) * | 2012-08-16 | 2013-01-30 | 中联重科股份有限公司 | Mounting structure of rotary table and main arm and engineering machinery comprising mounting structure |
| TWM473460U (en) * | 2013-11-22 | 2014-03-01 | Taiwan Chelic Corp | Rotary cylinder structure improvement |
| CN108002251A (en) * | 2018-01-11 | 2018-05-08 | 国家电网公司 | A kind of narrow space crane |
| CN208702834U (en) * | 2018-05-25 | 2019-04-05 | 潍坊海王金泰新材料有限公司 | Oil cylinder limiter |
| CN209229010U (en) * | 2018-10-29 | 2019-08-09 | 宁波南方减震器制造有限公司 | A kind of modified wear sleeve |
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| CN113321140A (en) | 2021-08-31 |
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