CN202441063U - Rotary table and engineering machinery and arm support devices thereof - Google Patents
Rotary table and engineering machinery and arm support devices thereof Download PDFInfo
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- CN202441063U CN202441063U CN2012200382178U CN201220038217U CN202441063U CN 202441063 U CN202441063 U CN 202441063U CN 2012200382178 U CN2012200382178 U CN 2012200382178U CN 201220038217 U CN201220038217 U CN 201220038217U CN 202441063 U CN202441063 U CN 202441063U
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- jib
- engineering machinery
- turntable
- arm support
- jointed shaft
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Abstract
The utility model discloses arm support devices of engineering machinery. The arm support devices of the engineering machinery comprise a rotary table mounted on a base plate of the engineering machinery and a first arm support hinged with the rotary table. A first arm support cylinder is arranged between the first arm support and the rotary table, the first arm support is hinged with the rotary table through a first hinge axis, the first arm support cylinder is hinged with the rotary table through a second hinge axis, and the first hinge axis is lower than the second hinge axis; a second arm support is hinged with the tail end of the first arm support, and the second arm support is folded above the first arm support. The arranging pattern of the arm support devices provides arranging space for an overlong arm support, and expands material arranging range of the whole arm devices. The utility model further comprises engineering machinery including the arm support devices and a rotary table for the arm support devices.
Description
Technical field
The utility model relates to engineering machinery field, particularly a kind of turntable, is used for the boom device of engineering machinery.The utility model also relates to a kind of engineering machinery that comprises above-mentioned boom device.
Background technology
Along with the fast development of China's economic construction, market increases for the increasing demand of constructional engineering machinery especially concrete mixer.
Jib in the concrete mixer is generally more piece, and respectively saves between the jib and can fold.In the course of work of concrete mixer, need through be fixed in carrier pipe on the jib with transmission and concrete transmission to assigned address, and along with the variation of transfer position, jib need drive carrier pipe and realize actions such as expansion, gathering and rotation.
As shown in Figure 1, be a kind of structural representation of typical concrete mixer.The boom device of this concrete mixer comprise turntable 1 ', first jib 21 ', second jib 22 ', the 3rd jib 23 ', the 4th jib 24 '; Wherein, Turntable 1 ' be installed on through pivoting support on the chassis of concrete mixer; Turntable 1 ' can rotate with respect to the chassis, first jib 21 ' be articulated in turntable 1 ' on, and above-mentioned respectively to save jib hinged successively; Driving oil cylinder is set between adjacent two jibs rotates, thereby realize opening and folding of jib to drive adjacent two jibs.
With reference to Fig. 1; Turntable 1 ' generally the be arranged in position of chassis near driver's cabin; Also be the front portion on chassis, first jib 21 ' with turntable 1 ' hinged and folding to the afterbody of concrete mixer, turntable 1 ' and first jib 21 ' between be provided with arm support oil cylinder 3 '; Arm support oil cylinder 3 ' two ends respectively with turntable 1 ', first jib 21 ' hinged; And first jib 21 ' with turntable 1 ' hinge axes A be higher than arm support oil cylinder 21 ' with turntable 1 ' hinge axes B, under boom device was in folded state, arm support oil cylinder 3 ' stretch out was to promote first jib 21 ' launch action.
According to boom device R type, Z type or RZ type folding mode commonly used; Under boom device is in folded state; Above-mentioned second jib 22 ', the 3rd jib 23 ', the 4th jib 24 ' generally be arranged in first jib 21 ' the arrangement space of below in, second jib 22 ', the 3rd jib 23 ' and the 4th jib 24 ' length general also less than first jib 21 ' length.Therefore, in this kind jib arrangement form, each saves the length of jib is limited to, and in order to increase the length of run of boom device, needs to increase the joint number of jib; But because the arrangement space of first jib, 21 ' below is limited, accelerating of jib joint number is limited.
Under the development trend of super high pump-conveying height, ultra wide cloth scope, jib arrangement form of the prior art can not satisfy the layout of overlength jib at current concrete mixer.Therefore, how to improve the folding mode of boom device,, improve the cloth scope of whole boom device, become the technical barrier that those skilled in the art need to be resolved hurrily for the overlength jib provides arrangement space.
The utility model content
The purpose of the utility model provides a kind of boom device of engineering machinery, for the overlength jib provides arrangement space, improves the cloth scope of whole boom device.Another purpose of the utility model provides a kind of engineering machinery that comprises above-mentioned boom device.Another purpose of the utility model provides a kind of turntable that is used for this boom device.
For solving the problems of the technologies described above; The utility model provides a kind of boom device of engineering machinery; Comprise the turntable that is installed on the said engineering machinery chassis and first jib hinged with said turntable; Between said first jib and the said turntable first arm support oil cylinder is set, it is characterized in that, said first jib and said turntable are hinged through first jointed shaft; Said first arm support oil cylinder and said turntable are hinged through second jointed shaft, and the axis of said first jointed shaft is lower than the axis of said second jointed shaft; Second jib and said first jib terminal hinged, and said second jib is folded to the top of said first jib.
Preferably, the axis of the axis of said first jointed shaft and said second jointed shaft has predetermined distance at said engineering machinery length direction.
Preferably, said first jib of the said first jib hydraulic oil cylinder driving launches to 90 degree scopes at 0 degree around said first jointed shaft.
Preferably, said turntable is arranged on the middle part on said chassis.
Preferably, said first jib extends to the driver's cabin direction of said engineering machinery.
Preferably, the end of said first jib is positioned at the top of said driver's cabin.
Preferably, said second jib is through to the afterbody of said engineering machinery along the length direction of said engineering machinery.
Preferably, said first jib extends to the afterbody of said engineering machinery, and said second jib extends to the driver's cabin direction of said engineering machinery.
Preferably, the end of said second jib is positioned at the top of said driver's cabin.
The utility model has also proposed a kind of turntable; Be applied to the boom device of said engineering machinery; The installing rack that comprises terminal pad and be fixed in said terminal pad; Said installing rack is provided with second hinge hole that is used to that first hinge hole of said first jib is installed and is used to install said first arm support oil cylinder; Said first jointed shaft is installed in said first hinge hole, and said second jointed shaft is installed in said second hinge hole, and the axis of said first jointed shaft is lower than the axis of said second jointed shaft.
Preferably; Said first hinge hole is arranged on the bottom of said installing rack; Said second hinge hole is arranged on the top ends of said installing rack, and the axis of the axis of said first jointed shaft and said second jointed shaft has predetermined distance at said engineering machinery length direction.
Preferably; Said installing rack comprises first bracing frame, second bracing frame that is arranged in parallel; Also comprise the link that is arranged at said first bracing frame, said second bracing frame outside and is fixedly connected, all offer said first hinge hole in the relevant position of said first bracing frame, said second bracing frame and said link with both.
Preferably; Said first hinge hole is arranged on the bottom of said installing rack; Said second hinge hole is arranged on the top ends of said installing rack; The axis of said first hinge hole is vertical with the axis of rotation of said terminal pad and crossing, and the axis of said second hinge hole is vertical with the axis of rotation of said terminal pad.
The utility model has also proposed a kind of engineering machinery, comprises the chassis and is installed on the boom device on the said chassis, and said boom device is the boom device of said engineering machinery.
The boom device of a kind of engineering machinery that the utility model provided; Comprise the turntable that is installed on the said engineering machinery chassis and first jib hinged with said turntable; Between said first jib and the said turntable first arm support oil cylinder is set; Said first jib and said turntable are hinged through first jointed shaft, and said first arm support oil cylinder and said turntable are hinged through second jointed shaft, and the axis of said first jointed shaft is lower than the axis of said second jointed shaft; Second jib and said first jib terminal hinged, and said second jib is folded to the top of said first jib.
The arrangement of this kind boom device, the axis of first jointed shaft that first jib and turntable are hinged are lower than the axis of the second hinged jointed shaft of first arm support oil cylinder and turntable, and first jib is inverted, and second jib is arranged in the arrangement space of first jib top.Just put with respect to first jib in the prior art; Other respectively save the technical scheme that jib is arranged in the arrangement space of first jib below; The present invention has made full use of the arrangement space of first jib top; Other respectively save the length that jib can stride across the position of turntable and run through whole engineering machinery, satisfy the layout of single-unit overlength jib; And the layout of first jib below still can rationally be utilized, and can also increase the length of boom device through the joint number that increases jib, for the overlength jib provides arrangement space, improves the cloth scope of whole boom device.
A kind of preferred embodiment in, in the boom device that the utility model provided, said first jib extends to the driver's cabin direction of said engineering machinery.Like this,, jib can make full use of space above the driver's cabin when arranging.
The engineering machinery of turntable that is used for boom device that the utility model proposes and application boom device has above-mentioned same technique effect.
Description of drawings
Fig. 1 be in the prior art a kind of typical concrete mixer structural representation;
Structural representation when Fig. 2 is loaded on the chassis for boom device that the utility model provided;
Fig. 3 is the front view of boom device shown in Figure 2 when retracted state;
Fig. 4 is the front view of boom device shown in Figure 2 when deployed condition;
Fig. 5 is the structural representation of boom device shown in Figure 2 in the side-looking direction;
The front view of a kind of specific embodiment of turntable that Fig. 6 provides for the utility model;
Fig. 7 is the stereogram of turntable shown in Figure 6;
Fig. 8 is intended to for the structure of the another kind of specific embodiment of turntable that the utility model provides.
The specific embodiment
The core of the utility model provides a kind of boom device of concrete mixer, for the overlength jib provides arrangement space, improves the cloth scope of whole boom device.Another core of the utility model provides a kind of engineering machinery that comprises above-mentioned boom device, and the turntable of using boom device.
In order to make those skilled in the art person understand the technical scheme of the utility model better, the utility model is done further to specify below in conjunction with the accompanying drawing and the specific embodiment.
Please refer to Fig. 2 to Fig. 5, the structural representation when Fig. 2 is loaded on the chassis for boom device that the utility model provided; Fig. 3 is the front view of boom device shown in Figure 2 when retracted state; Fig. 4 is the front view of boom device shown in Figure 2 when deployed condition; Fig. 5 is the structural representation of boom device shown in Figure 2 in the side-looking direction.
In a kind of specific embodiment, boom device provided by the invention is used for engineering machinery.With the boom device that is used for concrete mixer is example; This boom device comprises the turntable 2 that is installed on the said engineering machinery chassis 1 and first jib 31 hinged with said turntable 2; Between said first jib 31 and the said turntable 2 first arm support oil cylinder 4 is set; It is characterized in that; Said first jib 31 is hinged through first jointed shaft 71 with said turntable 2, and said first arm support oil cylinder 4 is hinged through second jointed shaft 72 with said turntable 2, and the axis of said first jointed shaft 71 is lower than the axis of said second jointed shaft 72; Second jib 32 is terminal hinged with said first jib 31, and said second jib 32 is folded to the top of said first jib 31.
The arrangement of this kind boom device, the axis of first jointed shaft that first jib and turntable are hinged are lower than the axis of the second hinged jointed shaft of first arm support oil cylinder and turntable, and first jib is inverted, and second jib is arranged in the arrangement space of first jib top.Just put with respect to first jib in the prior art; Other respectively save the technical scheme that jib is arranged in the arrangement space of first jib below; The present invention has made full use of the arrangement space of first jib top; Other respectively save the length that jib can stride across the position of turntable and run through whole engineering machinery, satisfy the layout of single-unit overlength jib; And the layout of first jib below still can rationally be utilized, and can also increase the length of boom device through the joint number that increases jib, for the overlength jib provides arrangement space, improves the cloth scope of whole boom device.On the other hand; Because first jib 31 is basic arms of whole boom device, under the pumping state, the stressed very complicacy of first jib 31; First jib 31 is lower with the articulated position of turntable 2 among the present invention, has further improved the job stability and the reliability of boom device.
The axis of above-mentioned first jointed shaft 71 is positioned at the below of the axis of second jointed shaft 72, and first jointed shaft 71 is set has predetermined distance with said second jointed shaft 72 at the engineering machinery length direction.Adopt this set mode, under various duties, first arm support oil cylinder 4 can not interfere with first jib 31.With respect to prior art, need not the processing of on first jib 31, slotting in the technical scheme of the present invention, and then strengthened the rigidity and the intensity of first jib 31.
Through the setting of above-mentioned predetermined distance, can realize that first arm support oil cylinder 4 drives first jib 31 and to 90 degree scopes, launches at 0 degree around first jointed shaft 71, like Fig. 3 and shown in Figure 4.
On the said structure basis, said first jib 31 can extend to the driver's cabin direction of said engineering machinery.Like this, when jib was arranged, first jib 31 can make full use of the space of driver's cabin top.
The end of said first jib 31 can also further be positioned at the top of said driver's cabin.Like this, second jib 32 can be through to the afterbody of engineering machinery along the length direction of engineering machinery, and promptly second jib 32 runs through whole engineering machinery and extends to its afterbody from the top of driver's cabin, and the length of second jib 32 is greater than the length of first jib 31.Accordingly, according to jib folding mode (R, Z, RZ), in other hinged jibs of second jib 32, the part jib still can run through the length of whole engineering machinery at least, satisfies the requirement of overlength jib to arrangement space.
On the said structure basis, said first jib 31 can also extend to the afterbody of said engineering machinery, and in this case, second jib 32 and first jib 31 terminal hinged also extended to the driver's cabin direction.The end of second jib 32 can also further be positioned at the top of driver's cabin, and promptly second jib 32 can utilize the arrangement space of driver's cabin top, for the layout of overlength jib provides sufficient space.
In the above-mentioned preferred embodiment, can turntable 2 be located at the middle part on the chassis 1 of said engineering machinery.In this technical scheme, on first jib, 31 inverted architecture basics, can make full use of the arrangement space of turntable 2, for the layout of overlength jib provides sufficient space near engineering machinery driving cabin direction and engineering machinery afterbody; On the other hand, can be convenient to realize layout so that the machine gravity of engineering machinery distributes rationally, thereby improve the stability of engineering machinery supporting leg.
In actual application; Above-mentioned first jointed shaft 71 is positioned at the bottom of said turntable 2; Said second jointed shaft 72 is positioned at the top ends of said turntable 2, and the below and first jointed shaft 71 that the axis of first jointed shaft 71 is positioned at the axis of second jointed shaft 72 have predetermined distance with said second jointed shaft 72 at the engineering machinery length direction.
In a kind of specific embodiment, when first jib 31 when the driver's cabin direction is extended, the top ends that said turntable 2 can be set is extended to the afterbody of engineering machinery.Like this, first jointed shaft 71 is positioned at the centre of gyration of the bottom of turntable 2 near turntable 2, and the top ends that second jointed shaft 72 is positioned at turntable 2 is extended away from the centre of gyration of turntable 2 and to the afterbody of engineering machinery.First jointed shaft 71 is arranged at the position of turntable 2 near its centre of gyration, can further improve the job stability and the reliability of first jib 31.
Accordingly, when first jib 31 when the engineering machinery afterbody extends, the top ends that said turntable 2 can be set is extended to the driver's cabin direction.
It is pointed out that this paper first, second etc. ordinal number do not represent putting in order of each jib, only be for convenience and the different parts that title is identical are distinguished mutually to should not be construed as certain qualification.
The boom device that the utility model provided also is not limited to and only comprises first jib 31 and second jib 32; Also may further include the 3rd jib, the 4th jib and the 5th jib; Theoretically; Satisfying under the situation of other conditions, it also can comprise more more piece jib, and between each adjacent jib arm support oil cylinder is set, linkage to be to drive adjacent jib and launch and to draw in.
The present invention also provides a kind of turntable that is applied in above-mentioned boom device.Please refer to Fig. 6 and Fig. 7, Fig. 6 is the front view of a kind of specific embodiment of turntable that the utility model provided; Fig. 7 is the stereogram of turntable shown in Figure 5.
In a kind of specific embodiment; The installing rack 22 that the turntable 2 that the utility model provided comprises terminal pad 21 and is fixed in said terminal pad 21; Said installing rack 22 is provided with second hinge hole 62 that is used to that first hinge hole 61 of said first jib 31 is installed and is used to install said first arm support oil cylinder 4; Said first jointed shaft 71 is installed in said first hinge hole 61; Said second jointed shaft 72 is installed in said second hinge hole 62, and the axis of said first jointed shaft 71 is lower than the axis of said second jointed shaft 72.
On the said structure basis, said first hinge hole 61 is set has predetermined distance at said engineering machinery length direction with said second hinge hole 62.
Above-mentioned installing rack 22 further comprises first bracing frame 221, second bracing frame 222 that is arranged in parallel; Also comprise the link 223 that is arranged at said first bracing frame 221, said second bracing frame, 222 outsides and is fixedly connected, offer said first hinge hole 61 respectively in the relevant position of said first bracing frame 222, said second bracing frame 222 and said link 223 with both.
Apparently, turntable also is not limited to above-mentioned concrete structure, also can be other forms.As shown in Figure 8; In the another kind of specific embodiment; The installing rack 22 of turntable can comprise first bracing frame 221 and second bracing frame 222, and correspondence is offered first hinge hole 61 and second hinge hole 62 respectively in the relevant position of first bracing frame 221 and second bracing frame 222.On the basis of this kind specific embodiment, can also between first bracing frame 221 and second bracing frame 222 and terminal pad 21, reinforcing rib be set respectively, to improve the stress performance of turntable.
In actual application; First hinge hole is arranged on the bottom of said installing rack 22; Said second hinge hole is arranged on the top ends of said installing rack 22; The axis of said first hinge hole 61 is vertical and crossing with the axis of rotation of said terminal pad 21, and the axis of said second hinge hole 62 is vertical with the axis of rotation of said terminal pad 21.
Above-mentioned turntable 2 can be hinged on the chassis 1, and turntable 2 can rotate with respect to chassis 1, when the transmission and concrete transmission position changes, and through the rotation of turntable 2, the attitude of adjustment jib state, thus enlarged concrete conveying scope.
Except above-mentioned boom device, the utility model also provides a kind of engineering machinery, and is concrete, and this project machinery is concrete mixer, and other each several part structures of concrete mixer please refer to prior art, repeat no more at this.
More than a kind of turntable, engineering machinery and boom device thereof that the utility model provided have been carried out detailed introduction.Used concrete example among this paper the principle and the embodiment of the utility model are set forth, the explanation of above embodiment just is used to help to understand the method and the core concept thereof of the utility model.Should be understood that; For those skilled in the art; Under the prerequisite that does not break away from the utility model principle, can also carry out some improvement and modification to the utility model, these improvement and modification also fall in the protection domain of the utility model claim.
Claims (14)
1. the boom device of an engineering machinery; Comprise the turntable (2) that is installed on the said engineering machinery chassis (1) and first jib (31) hinged with said turntable (2); Between said first jib (31) and the said turntable (2) first arm support oil cylinder (4) is set; It is characterized in that; Said first jib (31) is hinged through first jointed shaft (71) with said turntable (2), and said first arm support oil cylinder (4) is hinged through second jointed shaft (72) with said turntable (2), and the axis of said first jointed shaft (71) is lower than the axis of said second jointed shaft (72); Second jib (32) is terminal hinged with said first jib (31), and said second jib (32) is folded to the top of said first jib (31).
2. according to the boom device of the said engineering machinery of claim 1, it is characterized in that the axis of the axis of said first jointed shaft (71) and said second jointed shaft (72) has predetermined distance at said engineering machinery length direction.
3. according to the boom device of the said engineering machinery of claim 2, it is characterized in that said first arm support oil cylinder (4) drives said first jib (31) and to 90 degree scopes, launches at 0 degree around said first jointed shaft (71).
4. the boom device of engineering machinery according to claim 1 is characterized in that said turntable (2) is arranged on the middle part of said chassis (1).
5. according to the boom device of each said engineering machinery of claim 1-4, it is characterized in that said first jib (31) extends to the driver's cabin direction of said engineering machinery.
6. according to the boom device of the said engineering machinery of claim 5, it is characterized in that the end of said first jib (31) is positioned at the top of said driver's cabin.
7. according to the boom device of the said engineering machinery of claim 6, it is characterized in that said second jib (32) is through to the afterbody of said engineering machinery along the length direction of said engineering machinery.
8. according to the boom device of each said engineering machinery of claim 1-4, it is characterized in that said first jib (31) extends to the afterbody of said engineering machinery, said second jib (32) extends to the driver's cabin direction of said engineering machinery.
9. like the boom device of the said engineering machinery of claim 8, it is characterized in that the end of said second jib (32) is positioned at the top of said driver's cabin.
10. turntable; Be applied to the boom device of each said engineering machinery of claim 1 to 9; It is characterized in that; The installing rack (22) that comprises terminal pad (21) and be fixed in said terminal pad (21), said installing rack (22) are provided with second hinge hole (62) that is used to that first hinge hole (61) of said first jib (31) is installed and is used to install said first arm support oil cylinder (4), and said first jointed shaft (71) is installed in said first hinge hole (61); Said second jointed shaft (72) is installed in said second hinge hole (62), and the axis of said first jointed shaft (71) is lower than the axis of said second jointed shaft (72).
11. turntable according to claim 10 is characterized in that, the axis of the axis of said first jointed shaft (71) and said second jointed shaft (72) has predetermined distance at said engineering machinery length direction.
12. turntable according to claim 11; It is characterized in that; Said installing rack (22) comprises first bracing frame (221), second bracing frame (222) that is arranged in parallel; Also comprise the link (223) that is arranged at said first bracing frame (221), said second bracing frame (222) outside and is fixedly connected, all offer said first hinge hole (61) in the relevant position of said first bracing frame (222), said second bracing frame (222) and said link (223) with both.
13. turntable according to claim 11; It is characterized in that; Said first hinge hole (61) is arranged on the bottom of said installing rack (22); Said second hinge hole (62) is arranged on the top ends of said installing rack (22), and the axis of said first hinge hole (61) is vertical and crossing with the axis of rotation of said terminal pad (21), and the axis of said second hinge hole (62) is vertical with the axis of rotation of said terminal pad (21).
14. an engineering machinery comprises chassis (1) and is installed on the boom device on the said chassis (1), it is characterized in that said boom device is the boom device of each said engineering machinery of claim 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200382178U CN202441063U (en) | 2012-02-06 | 2012-02-06 | Rotary table and engineering machinery and arm support devices thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200382178U CN202441063U (en) | 2012-02-06 | 2012-02-06 | Rotary table and engineering machinery and arm support devices thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202441063U true CN202441063U (en) | 2012-09-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200382178U Expired - Lifetime CN202441063U (en) | 2012-02-06 | 2012-02-06 | Rotary table and engineering machinery and arm support devices thereof |
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| Country | Link |
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| CN (1) | CN202441063U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013123793A1 (en) * | 2012-02-24 | 2013-08-29 | 湖南三一智能控制设备有限公司 | Boom device and concrete pump truck |
| CN109057350A (en) * | 2018-09-30 | 2018-12-21 | 中铁六局集团广州工程有限公司 | Concrete casting device and casting system |
| CN114517583A (en) * | 2020-11-18 | 2022-05-20 | 三一汽车制造有限公司 | Working machine |
| CN114517580A (en) * | 2020-11-20 | 2022-05-20 | 三一汽车制造有限公司 | Arm support device and working vehicle |
| CN115142680A (en) * | 2021-03-31 | 2022-10-04 | 三一汽车制造有限公司 | Construction machine |
| WO2022205646A1 (en) * | 2021-03-31 | 2022-10-06 | 三一汽车制造有限公司 | Engineering machine |
-
2012
- 2012-02-06 CN CN2012200382178U patent/CN202441063U/en not_active Expired - Lifetime
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013123793A1 (en) * | 2012-02-24 | 2013-08-29 | 湖南三一智能控制设备有限公司 | Boom device and concrete pump truck |
| CN109057350A (en) * | 2018-09-30 | 2018-12-21 | 中铁六局集团广州工程有限公司 | Concrete casting device and casting system |
| CN114517583A (en) * | 2020-11-18 | 2022-05-20 | 三一汽车制造有限公司 | Working machine |
| CN114517583B (en) * | 2020-11-18 | 2023-04-25 | 三一汽车制造有限公司 | Work machine |
| CN114517580A (en) * | 2020-11-20 | 2022-05-20 | 三一汽车制造有限公司 | Arm support device and working vehicle |
| CN114517580B (en) * | 2020-11-20 | 2024-03-08 | 三一汽车制造有限公司 | Arm support device and working vehicle |
| CN115142680A (en) * | 2021-03-31 | 2022-10-04 | 三一汽车制造有限公司 | Construction machine |
| WO2022205646A1 (en) * | 2021-03-31 | 2022-10-06 | 三一汽车制造有限公司 | Engineering machine |
| CN115142680B (en) * | 2021-03-31 | 2024-02-06 | 三一汽车制造有限公司 | Engineering machinery |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: 31 northwest Heavy Industries Ltd Assignor: Sanyi Heavy Industry Co., Ltd. Contract record no.: 2013430000010 Denomination of utility model: Rotary table and engineering machinery and arm support devices thereof Granted publication date: 20120919 License type: Exclusive License Record date: 20130322 |
|
| LICC | Enforcement, change and cancellation of record of contracts on the licence for exploitation of a patent or utility model | ||
| ASS | Succession or assignment of patent right |
Owner name: SANY NORTHWEST HEAVY INDUSTRY CO., LTD. Free format text: FORMER OWNER: SANYI HEAVY INDUSTRY CO LTD Effective date: 20130424 |
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Effective date of registration: 20130424 Address after: 830000, the Xinjiang Uygur Autonomous Region Urumqi economic and Technological Development Zone (Toutun River District) 568 West Jinggangshan Street Patentee after: 31 northwest Heavy Industries Ltd Address before: 410100 Changsha economic and Technological Development Zone, Hunan City, the 31 industrial city Patentee before: Sanyi Heavy Industry Co., Ltd. |
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