CN113321140A - 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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- CN113321140A CN113321140A CN202110735767.9A CN202110735767A CN113321140A CN 113321140 A CN113321140 A CN 113321140A CN 202110735767 A CN202110735767 A CN 202110735767A CN 113321140 A CN113321140 A CN 113321140A
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- oil tank
- hydraulic oil
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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
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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
- B66C23/84—Slewing gear
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- Mechanical Engineering (AREA)
- Supply Devices, Intensifiers, Converters, And Telemotors (AREA)
Abstract
The invention relates to the technical field of engineering instruments, in particular to a hydraulic oil tank installation positioning structure and an engineering crane, which comprise a rotary table on an operation instrument and a hydraulic oil tank installed on the rotary table, wherein the rotary table is provided with a plurality of limiting mechanisms, the hydraulic oil tank is provided with a plurality of positioning structures respectively corresponding to the limiting mechanisms, 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 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, the large-tonnage hydraulic oil tank can be conveniently and fixedly installed subsequently, 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 instruments, in particular to a hydraulic oil tank mounting and positioning structure and an engineering crane.
Background
Along with the rapid development of economic construction in China, the market is more and more widely applied to engineering machinery, and along with the continuous improvement of tonnage of the engineering machinery, the application of a hydraulic system in the field of the engineering machinery is increasing day by day. The hydraulic oil tank is an important component of a hydraulic system, and is generally designed into a box-type 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.
The hydraulic oil in the engineering machinery is widely applied, and the volume of the hydraulic oil tank is larger. When the tonnage of the crane is larger, the volume of the hydraulic oil tank is also larger, and the hydraulic oil tank is usually designed into a long and flat box type structure for the crane with the super-large tonnage due to the limitation of the width and the height of the whole crane. When the hydraulic oil tank is installed on the rotary table of the main machine, the installation hole in the hydraulic oil tank is difficult to align with the installation hole in the rotary table of the main machine, and the consistency of the position of the oil tank relative to the main machine is difficult to guarantee.
In order to guarantee that the mounting hole can align and guarantee the uniformity of hydraulic tank installation on hydraulic tank and the revolving stage, current mode has two kinds: firstly, welding a mounting hole of a hydraulic oil tank and a mounting hole on a rotary table in a matching manner; and secondly, respectively machining pentahedrons on a mounting hole on the hydraulic oil tank and a mounting hole on the rotary table. Both of these approaches undoubtedly add significant manufacturing difficulty, cycle time, and cost.
The related patent discloses a hydraulic oil tank and a crane applied to 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 support is fixedly connected with the mounting surface of the oil tank body, and the other end of the support is fixedly connected with a mounting frame of engineering machinery in a detachable mode. Before the hydraulic oil tank is installed on the engineering machinery, a support does not need to be installed on the installation frame, inconvenience is not brought to operation of other aspects of the engineering machinery, and deformation which influences installation cannot be caused by the support of the hydraulic oil tank. The hydraulic oil tank is also provided with a reinforcing device, the reinforcing device is positioned in the oil tank body and is fixedly connected with the bottom surface, the mounting surface and the opposite surface of the mounting surface of the oil tank body, the oil tank body is connected into a whole, and the force borne by the mounting surface is transmitted to other surfaces of the oil tank body, so that the whole oil tank body is uniformly stressed. However, the installation method of the hydraulic oil tank of the prior patent has obvious defects: the cantilever beam support connected in the middle is not beneficial to the integral supporting stress of the oil tank in practice, and the transition support is arranged between the oil tank and the host machine, so that the structure is complex, and more particularly, in practical application, as the hydraulic oil tank of a large-scale operation instrument 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 particularly, each screw hole of the hydraulic oil tank is accurately corresponding to each screw hole on the operation instrument, so that the difficulty in positioning exists in the installation process of the large-tonnage hydraulic oil tank due to the fact that the large-tonnage hydraulic oil tank needs to be positioned in advance before fixed installation is not considered in the prior art, 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, 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.
The invention provides a hydraulic oil tank installation and positioning structure, which comprises a rotary table on an operating instrument and a hydraulic oil tank installed on the rotary table, and is characterized in that a plurality of limiting mechanisms are arranged on the rotary table, 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 mounting and positioning structure of the hydraulic oil tank provided by the invention, each limiting mechanism comprises a limiting vertical surface, a limiting bearing surface and a limiting connecting piece, the plurality of positioning structures comprise a plurality of positioning surfaces, the limiting vertical surfaces, the limiting bearing surfaces and the limiting connecting pieces are respectively abutted against the positioning surfaces from the left-right direction, the up-down direction and the front-back direction, and the mounting positions of the hydraulic oil tank in the left-right direction, the up-down direction and the front-back direction are limited by the limiting vertical surfaces, the limiting bearing surfaces and the limiting connecting pieces respectively.
According to the mounting and positioning structure of the hydraulic oil tank, provided by the invention, each positioning surface respectively comprises a positioning side surface which is formed on the hydraulic oil tank and faces the rotary table, a positioning bottom surface which is formed at the bottom of the hydraulic oil tank and an annular positioning surface which is used for being matched and sleeved with the limiting connecting piece, the limiting vertical surface is matched and corresponding to the positioning side surface, and the limiting bearing surface upwards supports the positioning bottom surface in a matching manner.
According to the mounting and positioning structure of the hydraulic oil tank, 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 connecting piece is a limiting pin which is sleeved in the limiting hole and the positioning hole in a matching manner.
According to the mounting and positioning structure of the hydraulic oil tank, the limiting pin is a threaded pin, and mounting threads for being in threaded connection with the threaded pin are respectively formed in the limiting hole and/or the positioning hole.
According to the hydraulic oil tank mounting and positioning structure provided by the invention, at least one L-shaped block is arranged on the rotary table, and the limiting vertical surface and the limiting bearing surface are respectively formed on the surface of the L-shaped block.
According to the mounting and positioning structure of the hydraulic oil tank, the number of the limiting vertical surfaces is at least one, the limiting vertical surfaces are all positioned on the same plane, and the positioning side surfaces are flat side surfaces which are matched with each other and correspond to the limiting vertical surfaces.
According to the mounting and positioning structure of the hydraulic oil tank, the number of the limiting bearing surfaces is at least one, all the limiting bearing surfaces are located on the same plane, and the positioning bottom surfaces are flat bottom surfaces which are matched with each other and correspond to all the limiting bearing surfaces.
According to the hydraulic oil tank mounting and positioning structure provided by the invention, each positioning surface is formed by laser cutting.
According to the mounting and positioning structure of the hydraulic oil tank, provided by the invention, each positioning surface respectively comprises a positioning side surface formed on the inner side of the hydraulic oil tank, a positioning bottom surface formed at the bottom of the hydraulic oil tank and a positioning plane, the positioning side surface and the positioning bottom surface are mutually vertical in space, the limiting vertical surface is mutually matched and corresponds to the positioning side surface, the limiting bearing surface upwards supports the positioning bottom surface in a matched manner, and the positioning plane is mutually matched and corresponds to the surface of the limiting connecting piece.
The invention provides a mounting and positioning structure of a hydraulic oil tank, because a plurality of limiting mechanisms are arranged on a rotary table of an operating instrument in advance, and a plurality of positioning structures respectively corresponding to the limiting mechanisms are also formed on the hydraulic oil tank in advance, therefore, before the large-tonnage hydraulic oil tank 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 respectively limiting the positions of the positioning structures through the limiting mechanisms, so that the large-volume large-tonnage hydraulic oil tank can be accurately positioned on a working machine in advance, the large-tonnage hydraulic oil tank can accurately reach the preset installation position on the rotary table, therefore, the large-tonnage hydraulic oil tank can be conveniently and subsequently installed and fixed, 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.
The invention also provides an engineering crane which comprises the hydraulic oil tank mounting and positioning structure and can effectively reduce the mounting difficulty of the large-tonnage hydraulic oil tank on the engineering crane.
Drawings
In order to more clearly illustrate the technical solutions of the present invention or the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
FIG. 1 is a perspective view of a turntable according to an embodiment of the present invention;
FIG. 2 is a perspective view of a hydraulic oil tank according to a first embodiment of the present invention;
FIG. 3 is a schematic view of the turret of the present invention assembled with a hydraulic tank;
FIG. 4 is a perspective view of a turntable according to an embodiment of the present invention;
FIG. 5 is an enlarged view of a portion of a turntable according to an embodiment of the present invention;
FIG. 6 is a perspective view of a hydraulic oil tank according to a first embodiment of the present invention;
FIG. 7 is a perspective view of a hydraulic fluid tank according to an embodiment of the present invention;
FIG. 8 is a perspective view of a turntable according to an embodiment of the present invention;
FIG. 9 is an enlarged view of a portion of a turntable according to an embodiment of the present invention;
FIG. 10 is a perspective view of a hydraulic fluid tank according to an embodiment of the present invention;
FIG. 11 is a perspective view of a turntable according to an embodiment of the present invention;
FIG. 12 is an enlarged view of a portion of a turntable according to an embodiment of the present invention;
fig. 13 is a perspective view of a hydraulic oil tank in a second embodiment of the invention;
fig. 14 is a perspective view of a turntable in the second embodiment of the present invention;
fig. 15 is a partially enlarged view of the turntable in the second embodiment of the present invention.
Reference numerals:
100: a limiting mechanism; 200: a positioning structure; 201: positioning the surface;
1: a turntable; 2: a hydraulic oil tank; 3: limiting a vertical surface;
4: a limiting bearing surface; 5: a limiting connecting piece; 6: positioning the side surface;
7: positioning the bottom surface; 8: an annular positioning surface; 9: positioning a plate;
10: a limiting hole; 11: positioning holes; 12: a spacing pin;
13: an L-shaped block; 81: and positioning a plane.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example one
The following describes a hydraulic oil tank installation and positioning structure and an engineering crane according to the present invention with reference to fig. 1 to 3, including a rotary table 1 and a hydraulic oil tank 2, where the rotary table 1 is used for being installed on a working apparatus (not shown in the drawings), the hydraulic oil tank 2 is used for being installed on the rotary table 1, and in addition, a plurality of limiting mechanisms 100 are pre-installed on the rotary table 1, and a plurality of positioning structures 200 are formed on the hydraulic oil tank 2 in advance in a pre-processing mode, each positioning structure 200 corresponds to each limiting mechanism 100 respectively, before the hydraulic oil tank 2 is fixedly installed, the large-tonnage hydraulic oil tank 2 is moved to the turntable 1 in advance, the positions of the positioning structures 200 are restricted by the limiting mechanisms 100 to limit 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-back direction).
In the embodiment, since a plurality of limiting mechanisms 100 are mounted on the turntable 1 of the working apparatus in advance, and a plurality of positioning structures 200 corresponding to the limiting mechanisms 100 are also formed on the hydraulic oil tank 2 in advance, 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-back direction) can be limited by limiting the position of each positioning structure 200 by each limiting mechanism 100 before the hydraulic oil tank 2 of a large tonnage is fixedly mounted, so that the hydraulic oil tank 2 of a large volume and a large tonnage can be accurately positioned on the working apparatus in advance, the hydraulic oil tank 2 of a large tonnage can accurately reach the predetermined mounting position on the turntable 1, and the subsequent mounting and fixing (such as welding and fixing, bolt fixing and the like) of the hydraulic oil tank 2 of a large tonnage can be facilitated, and the mounting difficulty of the hydraulic oil tank of a large tonnage can be effectively reduced, the installation efficiency of the large-tonnage hydraulic oil tank is obviously improved.
As an alternative to this embodiment, each positioning surface 201 is formed by laser cutting, and each positioning surface 201 is cut out on the hydraulic oil tank 2 by a laser cutting processing method, so that the relative dimensional accuracy of each positioning surface 201 can be further ensured, and thus the accurate positioning of the hydraulic oil tank 2 on the turntable 1 can be ensured.
As an alternative embodiment of the present invention, as shown in fig. 4 to 6, each of the limiting mechanisms 100 includes a limiting vertical surface 3, a limiting bearing surface 4 and a limiting connecting member 5, the extending direction of the limiting connecting member 5 is perpendicular to the limiting vertical surface 3, each of the positioning structures 200 formed on the hydraulic oil tank 2 is a plurality of positioning surfaces 201, each of the positioning surfaces 201 can ensure the accuracy of the relative dimension thereof by laser cutting, the limiting vertical surface 3, the limiting bearing surface 4 and the limiting connecting member 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-back direction), before the hydraulic oil tank 2 is fixedly mounted, the hydraulic oil tank 2 with a large tonnage is moved to the turntable 1 in advance, and the mounting position of the hydraulic oil tank 2 in the X direction (left-right direction) is limited by the limiting vertical surface 3 to the corresponding positioning surface 201, The position of the corresponding positioning surface 201 is limited by the limit bearing surface 4 to define the installation position of the hydraulic oil tank 2 in the Z direction (up-down direction), and the position of the corresponding positioning surface 201 is limited by the limit connector 5 to define the installation position of the hydraulic oil tank 2 in the Y direction (front-back direction). Above-mentioned structure is on the one hand through spacing facade 3, the restriction of spacing bearing face 4 and spacing connector 5 to each locating surface 201, realize the advance location to large-tonnage hydraulic tank 2, on the other hand is because each locating surface 201 concentrates on processing on hydraulic tank 2, thereby make X, Y, Z three orientation benchmark can concentrate on the same part of hydraulic tank 2 medial surface, and cut down the relative size precision of guaranteeing each locating surface 201 through the laser, thereby the relative size of locating surface has been guaranteed in pentahedron processing on having removed hydraulic tank, consequently make the location between hydraulic tank 2 and the revolving stage 1 need not to rely on pentahedron machining or on-the-spot joining in marriage the welding, save the processing cost, effectively promote the installation effectiveness of large-tonnage hydraulic tank 2.
As an optional specific solution to this embodiment, as shown in fig. 7, each positioning surface 201 includes a positioning side surface 6 formed inside the hydraulic oil tank 2, a positioning bottom surface 7 formed at the bottom of the hydraulic oil tank 2, and an annular positioning surface 8 for being fitted with the limit connector 5, the limit vertical surface 3 and the positioning side surface 6 are fitted with each other and correspond to each other, and the limit bearing surface 4 is fitted upward to support the positioning bottom surface 7.
The position of the positioning side surface 6 is limited in the X direction through the limiting vertical surface 3 so as to limit the installation position of the hydraulic oil tank 2 in the X direction (left and right directions), the positioning bottom surface 7 is upwards supported through the limiting bearing surface 4 so as to limit the installation position of the hydraulic oil tank 2 in the Z direction (up and down directions), in addition, at least one annular positioning surface 8 is processed on the hydraulic oil tank 2 in a hole opening mode, the limiting connecting piece 5 can be sleeved in the annular positioning surface 8, and therefore the installation position of the hydraulic oil tank 2 in the Y direction (front and back directions) can be limited.
Specifically, the positioning side surface 6 and the positioning bottom surface 7 on the hydraulic oil tank 2 can be cut by laser so as to ensure the accuracy of the relative size.
As an optional specific solution to 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 in the positioning plate 9, a positioning hole 11 corresponding to the limiting hole 10 is formed outside the hydraulic oil tank 2, an annular positioning surface 8 is formed in the positioning hole 11, and the limiting connecting member 5 is a limiting pin 12 that is fittingly sleeved in the limiting hole 10 and the positioning hole 11. The limit pin 12 is inserted into the limit hole 10 and the locating hole 11, so that the installation position of the hydraulic oil tank 2 in the Y direction (front-back direction) can be limited quickly and conveniently, and the installation efficiency is improved further.
As an optional specific solution to this embodiment, the limit pin 12 is a threaded pin, and the limit hole 10 and/or the positioning hole 11 are respectively formed therein with a mounting thread for screwing the threaded pin. By utilizing the threaded connection, the limit pin 12 can be fixedly arranged in the limit hole 10 and the positioning hole 11, so that the hydraulic oil tank 2 can be effectively and stably fixed in advance.
As an alternative specific solution to 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 for processing.
Optionally, the limit vertical surface 3 and the limit bearing surface 4 on the L-shaped block 13 can be formed by welding and then machining, which is more beneficial to improving the position accuracy of the plane.
As an optional specific solution to this embodiment, the number of the limiting vertical surfaces 3 is plural, specifically, the positioning method can be implemented by providing a plurality of L-shaped blocks 13, each limiting vertical surface 3 is located on the same plane, and the positioning side surface 6 is a flat side surface that is matched with and corresponds to each limiting vertical surface 3, so that the positioning side surface 6 can be limited by matching the plurality of limiting vertical surfaces 3 at the same time, which is helpful for stably positioning the hydraulic oil tank 2.
As an optional specific solution to this embodiment, the number of the limiting bearing surfaces 4 is plural, and specifically, the limiting bearing surfaces 4 may be implemented by providing a plurality of L-shaped blocks 13, each limiting bearing surface 4 is located on the same plane, and the positioning bottom surface 7 is a flat bottom surface that is matched with each limiting bearing surface 4. Therefore, the positioning bottom surface 7 can be simultaneously supported upwards in a matched manner through the plurality of limiting bearing surfaces 4, and the stable positioning and the stable supporting of the hydraulic oil tank 2 are more facilitated.
Example two
The present embodiment is similar to the present embodiment, and is different therefrom in that, as shown in fig. 13 to fig. 15, each positioning surface 201 includes a positioning side surface 6 formed inside the hydraulic oil tank 2, a positioning bottom surface 7 formed at 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 perpendicular to each other in space, the positioning vertical surface 3 and the positioning side surface 6 are matched and correspond to each other, the positioning support surface 4 is matched and supported upward to the positioning bottom surface 7, and the positioning plane 81 and the surface of the positioning connecting member 5 are matched and correspond to each other.
The mounting position of the hydraulic oil tank 2 in the X direction (left-right direction) is defined by the positional restriction of the positioning side surface 6 in the X direction by the stopper vertical surface 3, the mounting position of the hydraulic oil tank 2 in the Z direction (up-down direction) is defined by the upward support of the positioning bottom surface 7 by the stopper receiving surface 4, and the mounting position of the hydraulic oil tank 2 in the Y direction (front-back direction) is defined by the positional restriction of the positioning plane 81 in the Y direction by the front side surface of the stopper 5.
Except the above, hydraulic oil tank installation location structure, this embodiment still provides an engineering crane, including foretell hydraulic oil tank installation location structure, can effectively reduce the installation degree of difficulty of large-tonnage hydraulic oil tank on engineering crane.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present 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 solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (10)
1. A hydraulic oil tank mounting and positioning structure comprises a rotary table on a working instrument and a hydraulic oil tank mounted on the rotary table, it is characterized in that a plurality of limiting mechanisms are arranged on the rotary table, a plurality of positioning structures respectively corresponding to the limiting mechanisms are formed on the hydraulic oil tank, each limiting mechanism comprises a limiting vertical surface, a limiting bearing surface and a limiting connecting piece, the plurality of positioning structures comprise a plurality of positioning surfaces, the limit vertical surface, the limit bearing surface and the limit connecting piece are respectively mutually abutted with the positioning surfaces from the left-right direction, the up-down direction and the front-back direction, the position of each positioning surface is limited through the limiting vertical surface, the limiting bearing surface and the limiting connecting piece so as to limit the installation position of the hydraulic oil tank in the left-right direction, the up-down direction and the front-back direction.
2. The mounting and positioning structure for the hydraulic oil tank according to claim 1, wherein 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 for being matched and sleeved with the limiting connecting member, the limiting vertical surface is matched and corresponding to the positioning side surface, and the limiting bearing surface is matched and supports the positioning bottom surface.
3. The hydraulic oil tank mounting and positioning structure as claimed in claim 2, wherein the turntable is provided with a positioning plate, the positioning plate is provided with at least one limiting hole, a positioning hole corresponding to the limiting hole is formed outside the hydraulic oil tank, the annular positioning surface is formed in the positioning hole, and the limiting connecting member is a limiting pin which is sleeved in the limiting hole and the positioning hole in a matching manner.
4. The mounting and positioning structure for the hydraulic oil tank as claimed in claim 3, wherein the limiting pin is a threaded pin, and mounting threads for threaded connection with the threaded pin are respectively formed in the limiting hole and/or the positioning hole.
5. The mounting and positioning structure for the hydraulic oil tank as claimed in claim 1, wherein the turntable is provided with at least one L-shaped block, and the limiting vertical surface and the limiting bearing surface are respectively formed on the surfaces of the L-shaped blocks.
6. The mounting and positioning structure for the hydraulic oil tank as claimed in claim 2, wherein the number of the limiting vertical surfaces is at least one, and each limiting vertical surface is located on the same plane.
7. The mounting and positioning structure for the hydraulic oil tank as claimed in claim 2, wherein the number of the limiting bearing surfaces is at least one, and each limiting bearing surface is located on the same plane.
8. The hydraulic oil tank mounting and positioning structure according to claim 1, wherein each of the positioning surfaces is formed by laser cutting.
9. The mounting and positioning structure of the hydraulic oil tank as claimed in claim 1, wherein each of the positioning surfaces comprises a positioning side surface formed on the inner side of the hydraulic oil tank, a positioning bottom surface formed at the bottom of the hydraulic oil tank, and a positioning plane, the positioning side surface and the positioning bottom surface are perpendicular to each other in space, the limiting vertical surface and the positioning side surface are matched and correspond to each other, the limiting bearing surface supports the positioning bottom surface in an upward matching manner, and the positioning plane and the surface of the limiting connecting member are matched and correspond to each other.
10. A construction crane, comprising the hydraulic oil tank mounting and positioning structure as claimed in any one of claims 1 to 9.
Priority Applications (1)
| 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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| CN202110735767.9A CN113321140B (en) | 2021-06-30 | 2021-06-30 | Hydraulic oil tank installation positioning structure and engineering crane |
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| CN113321140A true CN113321140A (en) | 2021-08-31 |
| CN113321140B CN113321140B (en) | 2023-07-14 |
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| TWM473460U (en) * | 2013-11-22 | 2014-03-01 | Taiwan Chelic Corp | Rotary cylinder structure improvement |
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| 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 revolving stage and main arm and contain its engineering machine tool |
| 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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| CN113321140B (en) | 2023-07-14 |
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