CN211895793U - Lifting device without counter weight - Google Patents
Lifting device without counter weight Download PDFInfo
- Publication number
- CN211895793U CN211895793U CN202020393138.3U CN202020393138U CN211895793U CN 211895793 U CN211895793 U CN 211895793U CN 202020393138 U CN202020393138 U CN 202020393138U CN 211895793 U CN211895793 U CN 211895793U
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- string
- lifting platform
- suspension arm
- support rod
- telescopic suspension
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- Expired - Fee Related
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- 239000000725 suspension Substances 0.000 claims abstract description 23
- 230000000694 effects Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 238000000844 transformation Methods 0.000 description 1
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Abstract
The utility model relates to the technical field of hoisting machines, in particular to a lifting device without counterweight, which comprises a lifting platform, a telescopic suspension arm and a string puller, wherein the telescopic suspension arm and the string puller are connected on the lifting platform; the string pulling device comprises a string pulling support rod and a plurality of string cables, one end of the string pulling support rod is a free end, the other end of the string pulling support rod is a connecting end, the connecting end is rotatably connected to the lifting platform, the free end is connected with the tail end of the telescopic suspension arm through the string cables, and the free end is connected to the lifting platform through the string cables; the utility model drives the string pulling support rod to rise and fall when the telescopic suspension arm is telescopic by connecting the free end with the tail end of the telescopic suspension arm and the lifting platform respectively; the free end is connected to the lifting platform through the string cable, the string pulling supporting rod can be directly tensioned through the string cable, the telescopic suspension arm is further pulled, and the purpose of exceeding without a balancing weight is achieved.
Description
Technical Field
The utility model relates to a hoisting machine technical field, concretely relates to no counter weight hoisting apparatus.
Background
At present, in the hoisting industry, a balance weight is mostly adopted in a balance crane, and under the condition of adopting the balance weight, a counterweight block is arranged at one end, far away from a hoisting arm, of a large arm of the balance crane, so that the end, provided with the counterweight block, of the large arm is inevitably extended, the application range is small, the balance crane is not suitable for being installed in a smaller space, the self weight is heavier, and the balance crane is inconvenient to move and unload; when the spring is used for connection, the spring is fixed on the upright post of the balance crane or the ground, and the large arm and the hoisting arm of the balance crane cannot rotate.
SUMMERY OF THE UTILITY MODEL
In order to overcome the defects of the prior art, the utility model aims to solve the technical problem that a counterweight-free hoisting device without a balancing weight is provided.
In order to solve the technical problem, the utility model discloses a technical scheme be:
the lifting device without the counter weight comprises a lifting platform, a telescopic suspension arm and a string puller, wherein the telescopic suspension arm and the string puller are connected to the lifting platform;
the string pulling device comprises a string pulling support rod and a plurality of string cables, one end of the string pulling support rod is a free end, the other end of the string pulling support rod is a connecting end, the connecting end is rotatably connected to the lifting platform, the free end is connected with the tail end of the telescopic suspension arm through the string cables, and the free end is connected to the lifting platform through the string cables.
The beneficial effects of the utility model reside in that: the free end is respectively connected with the tail end of the telescopic suspension arm and the lifting platform, so that the string pulling support rod is driven to rise and fall when the telescopic suspension arm is stretched; the free end is connected to the lifting platform through the string cable, the string pulling supporting rod can be directly tensioned through the string cable, the telescopic suspension arm is further pulled, and the purpose of exceeding without a balancing weight is achieved.
Drawings
Fig. 1 is a first angle schematic view of a counterweight-free lifting apparatus according to an embodiment of the present invention;
fig. 2 is a second angle schematic view of a lifting apparatus without counterweight according to an embodiment of the present invention;
fig. 3 is a schematic structural view of a clamping mechanism of a lifting device without counterweight according to an embodiment of the present invention;
fig. 4 is a schematic structural view of a string-pulling container of a lifting device without counterweight according to an embodiment of the present invention;
description of reference numerals: 1. hoisting the platform; 2. a telescopic suspension arm; 3. a string puller; 31. a string support bar; 32. a string; 4. a base; 5. a clamping mechanism; 51. a connecting member; 52. clamping the jacking piece; 6. a string receiver; 61. a conduit; 62. a fixed pulley; 63. a movable pulley; 64. a spring balancer; 65. a pull wire; 7. and rotating the disc.
Detailed Description
In order to explain the technical content, the objects and the effects of the present invention in detail, the following description is made with reference to the accompanying drawings in combination with the embodiments.
Referring to fig. 1 to 4, a lifting apparatus without counterweight of the present invention includes a lifting platform 1, a telescopic boom 2 and a string puller 3, wherein the telescopic boom 2 and the string puller 3 are connected to the lifting platform 1;
the string pulling device 3 comprises a string pulling support rod 31 and a plurality of string ropes 32, one end of the string pulling support rod 31 is a free end, the other end of the string pulling support rod 31 is a connecting end, the connecting end is rotatably connected to the lifting platform 1, the free end is connected with the tail end of the telescopic suspension arm 2 through the string ropes 32, and the free end is connected to the lifting platform 1 through the string ropes 32.
As can be seen from the above description, the free ends are respectively connected with the tail end of the telescopic boom 2 and the lifting platform 1, so that the string pulling support rod 31 can be driven to rise and fall when the telescopic boom 2 is telescopic; the free end is connected to the lifting platform 1 through a string 32, and the string pulling support rod 31 can be directly tensioned through the string 32, so that the telescopic boom 2 is pulled, and the purpose of overtopping under the condition without a balancing weight is achieved.
Further, the device also comprises a base 4, and the hoisting platform 1 is rotatably connected with the base 4 through a rotating disk 7.
As can be seen from the above description, the base 4 is in a fixed state and can be fixed on the ground or other equipment; by the arrangement of the rotating disc 7, 360 ° operation of the device can be achieved.
Further, the device still includes fixture 5, fixture 5 includes centre gripping jacking piece 52 and connecting piece 51, the one end of connecting piece 51 is connected on lifting by crane platform 1, centre gripping jacking piece 52 sets up the bottom at lifting by crane platform 1, drive connecting piece 51 and base 4 fixed connection when centre gripping jacking piece 52 jacks up.
As can be seen from the above description, the clamping jacking piece 52 and the connecting piece 51 can clamp the jacking piece 52 to tightly jack the upper surface of the base 4 downwards before hoisting, and the connecting piece 51 is lifted upwards due to the stress relationship, so that the hoisting component, the base 4 and the ground/other equipment are stressed into a whole after the connecting piece 51 and the base 4 are fastened and clamped with each other, thereby forming locking and fixing effects and improving the hoisting stability.
Further, the device also comprises a plurality of string drawing receivers 6, wherein each string drawing receiver 6 comprises a guide pipe 61, two fixed pulleys 62, two movable pulleys 63 and a spring balancer 64, the two fixed pulleys 62 are rotatably connected to the edge of an opening at one end of the guide pipe 61, the movable pulley 63 is arranged in the guide pipe 61, the spring balancer 64 is arranged on the guide pipe 61, the spring balancer 64 comprises a pull wire 65, and the pull wire 65 is connected with the movable pulley 63;
the string 32 passes through one of the fixed pulleys 62, then passes through the movable pulley 63, and then passes through the other fixed pulley 62.
As can be seen from the above description, due to the boom of the telescopic boom 2, the spring balancer 64 needs to leave a margin for the string 32 between the free end of the string pulling support rod 31 and the telescopic boom 2, and the string 32 with the margin is easily hung on other devices and damaged, and the spring balancer 64 is arranged in sequence to wind up the extra string 32 and store the extra string in the conduit 61; meanwhile, as the spring balancer 64 can preset the elastic coefficient, when a plurality of spring balancers 64 are provided, the stability of the center of gravity can be kept through pulling among the plurality of spring balancers 64 and the change of the elastic coefficient when the crane lifts.
Further, the conduit 61 is a retractable conduit 61.
Example one
A lifting device without a balance weight comprises a lifting platform, a telescopic suspension arm and a string puller, wherein the telescopic suspension arm and the string puller are connected to the lifting platform;
the string pulling device comprises a string pulling support rod and a plurality of string cables, one end of the string pulling support rod is a free end, the other end of the string pulling support rod is a connecting end, the connecting end is rotatably connected to the lifting platform, the free end is connected with the tail end of the telescopic suspension arm through the string cables, and the free end is connected to the lifting platform through the string cables.
The device also comprises a base, wherein the base is fixed on the ground; the lifting platform is rotatably connected with the base through a rotating disk.
The device further comprises a clamping mechanism, wherein the clamping mechanism comprises a clamping jacking piece and a connecting piece, one end of the connecting piece is connected to the lifting platform, the clamping jacking piece is arranged at the bottom of the lifting platform, and the connecting piece is driven to be fixedly connected with the base when the clamping jacking piece is jacked.
The device also comprises a plurality of string drawing receivers, each string drawing receiver comprises a guide pipe, two fixed pulleys, a movable pulley and a spring balancer, the two fixed pulleys are rotatably connected to the edge of an opening at one end of the guide pipe, the movable pulley is arranged in the guide pipe, the spring balancer is arranged on the guide pipe and comprises a pull wire, and the pull wire is connected with the movable pulley;
the string cable passes through one of the fixed pulleys, then passes through the movable pulley and then passes through the other fixed pulley.
The catheter is a retractable catheter.
Example two
A lifting device without a balance weight comprises a lifting platform, a telescopic suspension arm and a string puller, wherein the telescopic suspension arm and the string puller are connected to the lifting platform;
the string pulling device comprises a string pulling support rod and a plurality of string cables, one end of the string pulling support rod is a free end, the other end of the string pulling support rod is a connecting end, the connecting end is rotatably connected to the lifting platform, the free end is connected with the tail end of the telescopic suspension arm through the string cables, and the free end is connected to the lifting platform through the string cables.
The device also comprises a base, wherein the base is fixed on the crawler wheel set capable of walking; the lifting platform is rotatably connected with the base through a rotating disk.
The device further comprises a clamping mechanism, wherein the clamping mechanism comprises a clamping jacking piece and a connecting piece, one end of the connecting piece is connected to the lifting platform, the clamping jacking piece is arranged at the bottom of the lifting platform, and the connecting piece is driven to be fixedly connected with the base when the clamping jacking piece is jacked.
The device also comprises a plurality of string drawing receivers, each string drawing receiver comprises a guide pipe, two fixed pulleys, a movable pulley and a spring balancer, the two fixed pulleys are rotatably connected to the edge of an opening at one end of the guide pipe, the movable pulley is arranged in the guide pipe, the spring balancer is arranged on the guide pipe and comprises a pull wire, and the pull wire is connected with the movable pulley;
the string cable passes through one of the fixed pulleys, then passes through the movable pulley and then passes through the other fixed pulley.
The catheter is a retractable catheter.
The above mentioned is only the embodiment of the present invention, and not the limitation of the patent scope of the present invention, all the equivalent transformations made by the contents of the specification and the drawings, or the direct or indirect application in the related technical field, are included in the patent protection scope of the present invention.
Claims (5)
1. A lifting device without a balance weight is characterized by comprising a lifting platform, a telescopic suspension arm and a string puller, wherein the telescopic suspension arm and the string puller are connected to the lifting platform;
the string pulling device comprises a string pulling support rod and a plurality of string cables, one end of the string pulling support rod is a free end, the other end of the string pulling support rod is a connecting end, the connecting end is rotatably connected to the lifting platform, the free end is connected with the tail end of the telescopic suspension arm through the string cables, and the free end is connected to the lifting platform through the string cables.
2. The counterweight-free lifting device of claim 1 further comprising a base, wherein the lifting platform is rotatably connected to the base via a rotating disk.
3. The lifting device without the counter weight of claim 2, further comprising a clamping mechanism, wherein the clamping mechanism comprises a clamping jacking piece and a connecting piece, one end of the connecting piece is connected to the lifting platform, the clamping jacking piece is arranged at the bottom of the lifting platform, and the clamping jacking piece drives the connecting piece to be fixedly connected with the base when being jacked.
4. The counterweight-free lifting device as recited in claim 1, further comprising a plurality of string receivers, wherein each string receiver comprises a guide tube, two fixed pulleys, two movable pulleys and a spring balancer, the two fixed pulleys are rotatably connected to the edge of the opening at one end of the guide tube, the movable pulley is disposed in the guide tube, the spring balancer is disposed on the guide tube, the spring balancer comprises a pull wire, and the pull wire is connected to the movable pulley;
the string cable passes through one of the fixed pulleys, then passes through the movable pulley and then passes through the other fixed pulley.
5. The counterweight-free lifting device of claim 4 wherein said conduit is a telescoping conduit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020393138.3U CN211895793U (en) | 2020-03-25 | 2020-03-25 | Lifting device without counter weight |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020393138.3U CN211895793U (en) | 2020-03-25 | 2020-03-25 | Lifting device without counter weight |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211895793U true CN211895793U (en) | 2020-11-10 |
Family
ID=73274023
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020393138.3U Expired - Fee Related CN211895793U (en) | 2020-03-25 | 2020-03-25 | Lifting device without counter weight |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211895793U (en) |
-
2020
- 2020-03-25 CN CN202020393138.3U patent/CN211895793U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20221108 Address after: No. 15, Group 2, Maba Village, Yuezhao Township, Yuezhao Street, Zhongshan District, Liupanshui City, Guizhou Province, 553000 Patentee after: Guizhou Tiema Technology Co.,Ltd. Address before: 553000 Shuiyue Industrial Park, Zhongshan District, Liupanshui City, Guizhou Province (Maba Village, Yuezhao Township) Patentee before: Li Bin |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20201110 |