CN212476014U - Multistage lead screw hoist mechanism - Google Patents
Multistage lead screw hoist mechanism Download PDFInfo
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- CN212476014U CN212476014U CN202020498489.0U CN202020498489U CN212476014U CN 212476014 U CN212476014 U CN 212476014U CN 202020498489 U CN202020498489 U CN 202020498489U CN 212476014 U CN212476014 U CN 212476014U
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Abstract
The invention relates to the technical field of building machines, in particular to a multistage screw rod lifting mechanism which comprises a first support frame, a second support frame, a third support frame and a fourth support frame, wherein the first support frame, the second support frame, the third support frame and the fourth support frame are sequentially sleeved on a guide rail from top to bottom; the paired first screw rod transmission assemblies are respectively arranged at the upper left corner and the lower right corner of the first lifting space, the paired second screw rod transmission assemblies are respectively arranged at the middle parts of the front side and the rear side or the middle parts of the left side and the right side of the second lifting space, and the paired third screw rod transmission assemblies are arranged at the upper right corner and the lower left corner of the third lifting space; through setting up six lead screw drive assembly and just can accomplishing tertiary hoist mechanism, compare with prior art, through rationally to the arrangement of drive assembly, reduce the beam structure, reduce with the material, reduce the space that drive structure occupy, make the stress point position durable more reliable.
Description
Technical Field
The invention relates to the technical field of building machines, in particular to a multistage screw rod lifting mechanism.
Background
An air building machine which is a new industrialized intelligent construction technology is an equipment platform and a matched construction technology independently developed in China. The air building machine and the building technology realize the industrial intelligent building of cast-in-place reinforced concrete of high-rise houses in a mechanical operation and intelligent control mode. It is characterized by that all the technological processes are integrated and layer-by-layer completed in the air.
At present, an aerial building machine comprises a plurality of standard knot groups arranged in a rectangular array, a lifting mechanism and a pressure-bearing platform, specifically, the plurality of standard knots are overlapped and fixed in an end-to-end connection mode to form the standard knot groups, the pressure-bearing platform is of various types and is generally formed by splicing a plurality of truss section bars, two end parts of each truss section bar are respectively sleeved on two adjacent standard knot groups, the lifting mechanism is installed on each standard knot group, and the working end of each lifting mechanism is fixedly connected with the truss section bar so as to drive the truss section bar to move upwards or downwards.
Most of the existing lifting mechanisms are multi-stage transmission mechanisms, are formed by combining a plurality of screw rod transmission mechanisms, are mostly pyramid-shaped and are reduced layer by layer, so that the problems that the beam structure at the bottommost layer is too large, the stress of the whole transmission mechanism is not parallel, the beam structure is too large, the whole structure is complex and the like can be caused.
Disclosure of Invention
The invention aims to overcome the defects in the prior art and provide a multi-stage screw rod lifting mechanism which can solve the problem of complex structure.
The purpose of the invention is realized by the following technical scheme: the application provides a multistage screw rod lifting mechanism which comprises a first support frame, a second support frame, a third support frame and a fourth support frame, wherein the first support frame, the second support frame, the third support frame and the fourth support frame are sequentially sleeved on a guide rail from top to bottom; a first lifting space is formed between the first support frame and the second support frame and is provided with paired first lead screw transmission assemblies, a second lifting space is formed between the second support frame and the third support frame and is provided with paired second lead screw transmission assemblies, and a third lifting space is formed between the third support frame and the fourth support frame and is provided with paired third lead screw transmission assemblies; the paired first screw rod transmission assemblies are respectively arranged at the upper left corner and the lower right corner of the first lifting space, the paired second screw rod transmission assemblies are respectively arranged at the middle parts of the front side and the rear side or the middle parts of the left side and the right side of the second lifting space, and the paired third screw rod transmission assemblies are arranged at the upper right corner and the lower left corner of the third lifting space.
Each first lead screw transmission assembly comprises a first lifting oil cylinder, a first return bearing nut, a first lifting bearing nut, a first return motor, a first lifting motor and a first lead screw; the first lifting bearing nut is fixedly arranged on the second supporting frame, the top end of the first lead screw is fixedly connected with the first supporting frame, the bottom end of the first lead screw penetrates through the first lifting bearing nut on the second supporting frame, the first return bearing nut is sleeved on the first lead screw and positioned above the first lifting bearing nut, the first return motor is in transmission connection with the first return bearing nut, and the first lifting motor is in transmission connection with the first lifting bearing nut; the first lifting oil cylinder is fixedly arranged on the top end face of the second supporting frame, and a telescopic rod of the first lifting oil cylinder is fixedly connected with the first return bearing nut.
Each second lead screw transmission assembly comprises a second lifting oil cylinder, a second return bearing nut, a second lifting bearing nut, a second return motor, a second lifting motor and a second lead screw; the second lifting bearing nut is fixedly arranged on the third supporting frame, the top end of the second lead screw is fixedly connected with the second supporting frame, the bottom end of the second lead screw penetrates through the second lifting bearing nut on the third supporting frame, the second return bearing nut is sleeved on the second lead screw and positioned above the second lifting bearing nut, the second return motor is in transmission connection with the second return bearing nut, and the second lifting motor is in transmission connection with the second lifting bearing nut; the second lifting oil cylinder is fixedly arranged on the top end face of the third supporting frame, and a telescopic rod of the second lifting oil cylinder is fixedly connected with the second return bearing nut.
Each third screw rod transmission assembly comprises a third lifting oil cylinder, a third return bearing nut, a third lifting bearing nut, a third return motor, a third lifting motor and a third screw rod; the third lifting bearing nut is fixedly arranged on a fourth supporting frame, the top end of the third lead screw is fixedly connected with the fourth supporting frame, the bottom end of the third lead screw penetrates through the third lifting bearing nut on the fourth supporting frame, a third return bearing nut is sleeved on the third lead screw and positioned above the third lifting bearing nut, a third return motor is in transmission connection with the third return bearing nut, and the third lifting motor is in transmission connection with the third lifting bearing nut; and a third lifting oil cylinder is fixedly arranged on the top end surface of the fourth supporting frame, and a telescopic rod of the third lifting oil cylinder is fixedly connected with a third return bearing nut.
The telescopic bracket is a telescopic hydraulic cylinder which is horizontally arranged, a claw is fixedly connected to the working end of the telescopic hydraulic cylinder, and the claw is inserted into a clamping groove of the guide rail in a clamping state.
Wherein, the guide rail includes the standard festival of a plurality of range upon range of rigid couplings, and each standard festival all sets up the work end male draw-in groove that supplies flexible bracket.
The invention has the beneficial effects that: the utility model provides a multistage lead screw hoist mechanism just can accomplish tertiary hoist mechanism through setting up six lead screw drive subassemblies, compares with prior art, through rationally to the arrangement of drive subassembly, reduces beam structure, reduces with the material, reduces the space that drive structure occupy, makes the stress point position durable more reliable.
Drawings
The invention is further illustrated by means of the attached drawings, but the embodiments in the drawings do not constitute any limitation to the invention, and for a person skilled in the art, other drawings can be obtained on the basis of the following drawings without inventive effort.
Fig. 1 is a front view of the multistage lead screw elevating mechanism of the present embodiment.
Fig. 2 is a left side view of the multistage lead screw elevating mechanism of the present embodiment.
Fig. 3 is a top view of the multistage lead screw lifting mechanism of the present embodiment.
Reference numerals: the lifting device comprises a guide rail 1, a telescopic bracket 11, a first supporting frame 21, a second supporting frame 22, a third supporting frame 23, a fourth supporting frame 24, a first lead screw transmission assembly 3, a first lifting oil cylinder 31, a first return bearing nut 32, a first lifting bearing nut 33, a first return motor 34, a first lifting motor 35, a first lead screw 36, a second lead screw transmission assembly 4, a second lifting oil cylinder 41, a second return bearing nut 42, a second lifting bearing nut 43, a second return motor 44, a second lifting motor 45, a second lead screw 46, a third lead screw transmission assembly 5, a third lifting oil cylinder 51, a third return bearing nut 52, a third lifting bearing nut 53, a third return motor 54, a third lifting motor 55 and a third lead screw 56.
Detailed Description
The invention is further described with reference to the following examples.
The embodiment of the multistage screw lifting mechanism of the invention, as shown in fig. 1 to 3, comprises a first support frame 21, a second support frame 22, a third support frame 23 and a fourth support frame 24 which are sequentially sleeved on a guide rail 1 from top to bottom, wherein the top end of the first support frame 21 and the bottom end of the fourth support frame 24 are respectively provided with a telescopic bracket 11, and the guide rail 1 is provided with a plurality of clamping grooves for inserting the working end of the telescopic bracket 11 at intervals in the vertical direction. In this embodiment, the guide rail 1 includes a plurality of standard sections of range upon range of rigid coupling, and each standard section all offers the inserted draw-in groove of work end that supplies flexible bracket 11. In order to improve the unshaped shape of the lifting mechanism, the telescopic bracket 11 is a horizontally arranged telescopic hydraulic cylinder, the working end of the telescopic hydraulic cylinder is fixedly connected with a clamping jaw, and the clamping jaw is inserted into a clamping groove of the guide rail 1 in a clamping state.
In this embodiment, each support frame is arranged in a three-dimensional rectangular shape, that is, two rectangular frames are vertically placed, and then the two rectangular frames are fixedly connected by using vertical beams, so as to obtain the support frame of this embodiment, and the first support frame 21, the second support frame 22, the third support frame 23, and the fourth support frame 24 have the same structure.
As a modification, please refer to fig. 3, a first lifting space is formed between the first support frame 21 and the second support frame 22 and is provided with a pair of first lead screw transmission assemblies 3, a second lifting space is formed between the second support frame 22 and the third support frame 23 and is provided with a pair of second lead screw transmission assemblies 4, and a third lifting space is formed between the third support frame 23 and the fourth support frame 24 and is provided with a pair of third lead screw transmission assemblies 5; the paired first screw transmission assemblies 3 are respectively arranged at the upper left corner and the lower right corner of the first lifting space, the paired second screw transmission assemblies 4 are respectively arranged at the middle parts of the front side and the rear side or the middle parts of the left side and the right side of the second lifting space, and the paired third screw transmission assemblies 5 are arranged at the upper right corner and the lower left corner of the third lifting space. This embodiment just can accomplish tertiary hoist mechanism through setting up six lead screw drive subassemblies, compares with prior art, through rationally to the arrangement of drive assembly, reduces the beam structure, reduces with the material, reduces the space that drive structure occupy, makes the stress point position durable more reliable.
In the present embodiment, referring to fig. 1-3, each first lead screw transmission assembly 3 includes a first lifting cylinder 31, a first return bearing nut 32, a first lifting bearing nut 33, a first return motor 34, a first lifting motor 35 and a first lead screw 36; the first lifting bearing nut 33 is fixedly arranged on the second supporting frame 22, the top end of the first lead screw 36 is fixedly connected with the first supporting frame 21, the bottom end of the first lead screw 36 penetrates through the first lifting bearing nut 33 on the second supporting frame 22, the first return bearing nut 32 is sleeved on the first lead screw 36 and is positioned above the first lifting bearing nut 33, the first return motor 34 is in transmission connection with the first return bearing nut 32, and the first lifting motor 35 is in transmission connection with the first lifting bearing nut 33; the first lifting cylinder 31 is fixedly mounted on the top end surface of the second support frame 22, and the telescopic rod of the first lifting cylinder 31 is fixedly connected with the first return bearing nut 32. The working process of the first screw rod 36 transmission mechanism is as follows: the telescopic bracket 11 of the first support frame 21 retracts, the telescopic rod of the first lifting oil cylinder 31 upwards pushes against the first return bearing nut 32, meanwhile, the first lifting motor 35 drives the first lifting bearing nut 33 to rotate forwards, the first screw rod 36 moves upwards, the stroke of the first lifting oil cylinder 31 rises to the right position and stops, the first lifting bearing nut 33 stops rotating, and the telescopic bracket 11 of the first support frame 21 extends; the first return motor 34 drives the first return bearing nut 32 to rotate reversely, the first return bearing nut 32 moves downwards, and meanwhile, the telescopic rod of the first lifting oil cylinder 31 is retracted downwards, so that the first lifting oil cylinder 31 is lifted up in a stroke manner.
In the present embodiment, referring to fig. 1 to fig. 3, each of the second lead screw transmission assemblies 4 includes a second lift cylinder 41, a second return bearing nut 42, a second lift bearing nut 43, a second return motor 44, a second lift motor 45 and a second lead screw 46; the second lifting bearing nut 43 is fixedly arranged on the third supporting frame 23, the top end of the second lead screw 46 is fixedly connected with the second supporting frame 22, the bottom end of the second lead screw 46 penetrates through the second lifting bearing nut 43 on the third supporting frame 23, the second return bearing nut 42 is sleeved on the second lead screw 46 and is positioned above the second lifting bearing nut 43, the second return motor 44 is in transmission connection with the second return bearing nut 42, and the second lifting motor 45 is in transmission connection with the second lifting bearing nut 43; the second lifting cylinder 41 is fixedly mounted on the top end surface of the third support frame 23, and the telescopic rod of the second lifting cylinder 41 is fixedly connected with the second return bearing nut 42.
In the present embodiment, each third lead screw transmission assembly 5 includes a third lift cylinder 51, a third return bearing nut 52, a third lift bearing nut 53, a third return motor 54, a third lift motor 55 and a third lead screw 56; the third lifting bearing nut 53 is fixedly mounted on the fourth supporting frame 24, the top end of the third lead screw 56 is fixedly connected with the fourth supporting frame 24, the bottom end of the third lead screw 56 passes through the third lifting bearing nut 53 on the fourth supporting frame 24, the third return bearing nut 52 is sleeved on the third lead screw 56 and is positioned above the third lifting bearing nut 53, the third return motor 54 is in transmission connection with the third return bearing nut 52, and the third lifting motor 55 is in transmission connection with the third lifting bearing nut 53.
Finally, it should be noted that the above embodiments are only used for illustrating the technical solutions of the present invention, and not for limiting the protection scope of the present invention, although the present invention is described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions can be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention.
Claims (6)
1. The utility model provides a multistage lead screw hoist mechanism which characterized in that: the telescopic bracket comprises a first supporting frame, a second supporting frame, a third supporting frame and a fourth supporting frame which are sequentially sleeved on a guide rail from top to bottom, wherein telescopic brackets are arranged at the top end part of the first supporting frame and the bottom end part of the fourth supporting frame, and a plurality of clamping grooves for inserting the working ends of the telescopic brackets are arranged at intervals in the vertical direction of the guide rail;
a first lifting space is formed between the first support frame and the second support frame, and is provided with paired first lead screw transmission assemblies, a second lifting space is formed between the second support frame and the third support frame, and is provided with paired second lead screw transmission assemblies, and a third lifting space is formed between the third support frame and the fourth support frame, and is provided with paired third lead screw transmission assemblies;
the paired first screw rod transmission assemblies are respectively arranged at the upper left corner and the lower right corner of the first lifting space, the paired second screw rod transmission assemblies are respectively arranged at the middle parts of the front side and the rear side or the middle parts of the left side and the right side of the second lifting space, and the paired third screw rod transmission assemblies are arranged at the upper right corner and the lower left corner of the third lifting space.
2. The multi-stage lead screw lifting mechanism of claim 1, wherein: each first screw rod transmission assembly comprises a first lifting oil cylinder, a first return bearing nut, a first lifting bearing nut, a first return motor, a first lifting motor and a first screw rod; the first lifting bearing nut is fixedly arranged on the second supporting frame, the top end of the first lead screw is fixedly connected with the first supporting frame, the bottom end of the first lead screw penetrates through the first lifting bearing nut on the second supporting frame, the first return bearing nut is sleeved on the first lead screw and is positioned above the first lifting bearing nut, the first return motor is in transmission connection with the first return bearing nut, and the first lifting motor is in transmission connection with the first lifting bearing nut; the first lifting oil cylinder is fixedly installed on the top end face of the second supporting frame, and a telescopic rod of the first lifting oil cylinder is fixedly connected with the first return bearing nut.
3. The multi-stage lead screw lifting mechanism of claim 1, wherein: each second lead screw transmission assembly comprises a second lifting oil cylinder, a second return bearing nut, a second lifting bearing nut, a second return motor, a second lifting motor and a second lead screw; the second lifting bearing nut is fixedly arranged on a third supporting frame, the top end of the second lead screw is fixedly connected with the second supporting frame, the bottom end of the second lead screw penetrates through the second lifting bearing nut on the third supporting frame, the second return bearing nut is sleeved on the second lead screw and is positioned above the second lifting bearing nut, the second return motor is in transmission connection with the second return bearing nut, and the second lifting motor is in transmission connection with the second lifting bearing nut; and the second lifting oil cylinder is fixedly arranged on the top end face of the third supporting frame, and a telescopic rod of the second lifting oil cylinder is fixedly connected with a second return bearing nut.
4. The multi-stage lead screw lifting mechanism of claim 1, wherein: each third screw rod transmission assembly comprises a third lifting oil cylinder, a third return bearing nut, a third lifting bearing nut, a third return motor, a third lifting motor and a third screw rod; the third lifting bearing nut is fixedly arranged on a fourth supporting frame, the top end of the third screw rod is fixedly connected with the fourth supporting frame, the bottom end of the third screw rod penetrates through the third lifting bearing nut on the fourth supporting frame, the third return bearing nut is sleeved on the third screw rod and is positioned above the third lifting bearing nut, the third return motor is in transmission connection with the third return bearing nut, and the third lifting motor is in transmission connection with the third lifting bearing nut; and the third lifting oil cylinder is fixedly arranged on the top end surface of the fourth supporting frame, and a telescopic rod of the third lifting oil cylinder is fixedly connected with a third return bearing nut.
5. The multi-stage lead screw lifting mechanism of claim 1, wherein: the telescopic bracket is a telescopic hydraulic cylinder horizontally arranged, a claw is fixedly connected to the working end of the telescopic hydraulic cylinder, and the claw is inserted into a clamping groove of the guide rail in a clamping state.
6. The multi-stage lead screw lifting mechanism of claim 1, wherein: the guide rail includes the standard festival of a plurality of range upon range of rigid couplings, and each standard festival all sets up the work end male draw-in groove that supplies flexible bracket.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020498489.0U CN212476014U (en) | 2020-04-07 | 2020-04-07 | Multistage lead screw hoist mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020498489.0U CN212476014U (en) | 2020-04-07 | 2020-04-07 | Multistage lead screw hoist mechanism |
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| Publication Number | Publication Date |
|---|---|
| CN212476014U true CN212476014U (en) | 2021-02-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020498489.0U Active CN212476014U (en) | 2020-04-07 | 2020-04-07 | Multistage lead screw hoist mechanism |
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|---|---|
| CN (1) | CN212476014U (en) |
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2020
- 2020-04-07 CN CN202020498489.0U patent/CN212476014U/en active Active
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