CN217102801U - Lifting balance crane without counterweight - Google Patents
Lifting balance crane without counterweight Download PDFInfo
- Publication number
- CN217102801U CN217102801U CN202220847406.3U CN202220847406U CN217102801U CN 217102801 U CN217102801 U CN 217102801U CN 202220847406 U CN202220847406 U CN 202220847406U CN 217102801 U CN217102801 U CN 217102801U
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- lever assembly
- assembly
- tension spring
- counterweight
- guide wheel
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- 239000010720 hydraulic oil Substances 0.000 claims abstract description 10
- 238000000034 method Methods 0.000 claims description 3
- 230000005484 gravity Effects 0.000 abstract description 5
- 230000000694 effects Effects 0.000 description 2
- 230000003321 amplification Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
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Abstract
The utility model discloses a balanced hanging of lift of no counter weight, include: the rear lever assembly is rotatably connected with the front lever assembly, an auxiliary lever is further connected between the rear lever assembly and the front lever assembly, and the rear lever assembly and the auxiliary lever are both rotatably connected with the rotating seat; the driving assembly is arranged on the rotating seat, a piston rod of the hydraulic oil cylinder is connected with a guide wheel, the guide wheel is simultaneously connected with the tension spring support and the end part of the rear lever assembly, the driving assembly is used for driving the guide wheel to move up and down, and the other end of the tension spring support is connected with a tension spring. The utility model utilizes the tension spring to play the role of carrying out counterweight balance on the rear lever assembly, does not need a counterweight structure, simplifies the structure and is safer to operate; and set up the adjustable joining in marriage gravity of adjusting part, compare current counter weight structure like this, need not to change the counter weight position, it is safe convenient.
Description
Technical Field
The utility model relates to a lifting device correlation technique field specifically is a lift balance of no counter weight hangs.
Background
The balance crane uses the parallel four-bar linkage mechanism proportion amplification principle and a unique spiral lifting mechanism to lift heavy objects, and forms a compound motion to carry the hoisted objects through simple manual and maneuvering matching, so that the hoisted objects can stably stay at any position in an operation interval at any time according to requirements. Among the prior art, balanced hanging includes the base and is provided with parallel four-bar linkage's rotating part, wherein, generally sets up the great balancing weight of weight at four-bar linkage's back support assembly tip, and the balancing weight plays the gravity balance effect, utilizes "balanced gravity" to make the motion smooth, and the operation is laborsaving, simple. But the balancing weight with huge weight and volume causes the installation trouble of the balance crane, and the potential safety hazard also exists in the operation.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a lift balance of no counter weight hangs to solve the problem that proposes in the above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme:
a lifting balance crane without counterweight comprises: the device comprises a base, a rotating seat, a driving assembly, a tension spring bracket, a tension spring, a rear lever assembly and a front lever assembly, wherein the rotating seat is connected with the base through a rotating sleeve; the rear lever assembly is rotatably connected with the front lever assembly, an auxiliary lever is further connected between the rear lever assembly and the front lever assembly, and the rear lever assembly and the auxiliary lever are both rotatably connected with the rotating seat;
the driving assembly is arranged on the rotating seat, a piston rod of the hydraulic oil cylinder is connected with a guide wheel, the guide wheel is simultaneously connected with the tension spring support and the end part of the rear lever assembly, the driving assembly is used for driving the guide wheel to move up and down, and the other end of the tension spring support is connected with a tension spring.
Furthermore, a telescopic rod structure with variable length is connected between the guide wheel and the rear lever assembly.
Further, a guide groove is formed in the outer side of the guide wheel.
Further, the extension springs are at least provided with two groups.
Further, the end connection of extension spring has adjusting part, adjusting part includes adjusting bolt and adjusting nut, adjusting nut sets up on adjusting bolt, and adjusting part's one end is connected on the back lever assembly.
Furthermore, the driving assembly is respectively connected with a hydraulic oil cylinder and a driving motor, and the hydraulic oil cylinder is fixedly arranged on the rotating seat.
Further, the drive assembly comprises a drive motor, a screw and a lifter, a worm wheel connected with the screw is arranged in the lifter, the lifter is connected with the drive motor, and the end part of the screw is connected with the guide wheel.
Compared with the prior art, the beneficial effects of the utility model are that:
the utility model utilizes the tension spring to play the role of carrying out counterweight balance on the rear lever assembly, does not need a counterweight structure, simplifies the structure and is safer to operate; and set up the adjustable joining in marriage gravity of adjusting part, compare current counter weight structure like this, need not to change the counter weight position, it is safe convenient.
Drawings
Fig. 1 is a schematic front view of a first embodiment of the present invention;
fig. 2 is a left side view schematic structural diagram of a first embodiment of the present invention;
fig. 3 is a schematic top view of a first embodiment of the present invention;
fig. 4 is a schematic front view of a second embodiment of the present invention.
In the figure, 1, a base; 2. a rotating sleeve; 3. a rotating base; 4. a drive assembly; 41. a hydraulic cylinder; 42. a drive motor; 43. a screw; 44. an elevator; 5. a tension spring bracket; 51. a guide wheel; 52. a guide groove; 6. a tension spring; 61. an adjustment assembly; 611. a bolt and a bolt; 612. adjusting the nut; 7. a rear lever assembly; 71. an auxiliary lever; 8. a front lever assembly.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1 and 2, in an embodiment of the present invention, a lifting balance crane without counterweight includes: the device comprises a base 1, a rotary seat 3, a driving assembly 4, a tension spring bracket 5, a tension spring 6, a rear lever assembly 7 and a front lever assembly 8, wherein the rotary seat 3 is connected with the base 1 through a rotary sleeve 2; the rear lever assembly 7 is rotatably connected with the front lever assembly 8, an auxiliary lever 71 is further connected between the rear lever assembly 7 and the front lever assembly 8, and the rear lever assembly 7 and the auxiliary lever 71 are rotatably connected with the rotating seat 3, so that a parallel connecting rod mechanism is formed;
the driving assembly 4 is arranged on the rotating seat 3, the driving assembly 4 is connected with a hydraulic oil cylinder 41 and a driving motor 42 respectively, the hydraulic oil cylinder 41 is fixedly arranged on the rotating seat 3, a piston rod of the hydraulic oil cylinder 41 is connected with a guide wheel 51, the guide wheel 51 is connected with the tension spring support 5 and the end part of the rear lever assembly 7 at the same time, a telescopic rod structure with variable length is connected between the guide wheel 51 and the rear lever assembly 7, a guide groove 52 is arranged on the outer side of the guide wheel 51, the other end of the tension spring support 5 is connected with a tension spring 6, the tension spring 6 is at least provided with two groups, the end part of the tension spring 6 is connected with an adjusting component 61, as shown in fig. 3, the adjusting component 61 comprises an adjusting bolt 611 and an adjusting nut 612, the adjusting nut 612 is arranged on the adjusting bolt 611, and one end of the adjusting component 61 is connected to the rear lever assembly 7.
When hoisting, drive hydraulic cylinder 41 through driving motor 42, hydraulic cylinder 41 drive back lever assembly 7 rotates to make preceding lever assembly 8 carry out the arm exhibition adjustment and hoist, hoist and mount in-process extension spring 6 and move lever assembly 7 afterwards, extension spring 6 plays and carries out the effect that the counter weight is balanced back lever assembly 7, and sets up the adjustable joining in marriage gravity of adjusting part 61, compares current counter weight structure like this, need not to change the counter weight position, and is safe convenient.
In the second embodiment, as shown in fig. 4, the difference between the first embodiment and the second embodiment is that in the present embodiment, the driving assembly 4 includes a driving motor 42, a screw 43 and a lifter 44, a worm wheel connected to the screw 43 is disposed in the lifter 44, the lifter 44 is connected to the driving motor 42, an end of the screw 43 is connected to a guide wheel 51, and the screw 43 moves up and down to drive the lever assembly to extend and suspend.
Claims (7)
1. A lifting balance crane without counterweight comprises: the device comprises a base (1), a rotating seat (3), a driving assembly (4), a tension spring support (5), a tension spring (6), a rear lever assembly (7) and a front lever assembly (8), wherein the rotating seat (3) is connected with the base (1) through a rotating sleeve (2); the method is characterized in that: the rear lever assembly (7) is rotatably connected with the front lever assembly (8), an auxiliary lever (71) is further connected between the rear lever assembly (7) and the front lever assembly (8), and the rear lever assembly (7) and the auxiliary lever (71) are rotatably connected with the rotating seat (3);
the driving assembly (4) is arranged on the rotating seat (3), a piston rod of the hydraulic oil cylinder (41) is connected with a guide wheel (51), the guide wheel (51) is connected with the end portions of the tension spring support (5) and the rear lever assembly (7) simultaneously, the driving assembly (4) is used for driving the guide wheel (51) to move up and down, and the other end of the tension spring support (5) is connected with a tension spring (6).
2. The counterweight-free lifting balance crane according to claim 1, characterized in that: a telescopic rod structure with variable length is connected between the guide wheel (51) and the rear lever assembly (7).
3. The counterweight-free lifting balance crane according to claim 2, characterized in that: and a guide groove (52) is arranged on the outer side of the guide wheel (51).
4. The counterweight-free lifting balance crane according to claim 1, characterized in that: the tension springs (6) are at least provided with two groups.
5. The counterweight-free lifting balance crane according to claim 4, characterized in that: the end connection of extension spring (6) has adjusting part (61), adjusting part (61) includes adjusting bolt (611) and adjusting nut (612), adjusting nut (612) set up on adjusting bolt (611), and the one end of adjusting part (61) is connected on back lever assembly (7).
6. The counterweight-free lifting balance crane according to claim 1, characterized in that: the driving assembly (4) is connected with a hydraulic oil cylinder (41) and a driving motor (42) respectively, and the hydraulic oil cylinder (41) is fixedly installed on the rotating seat (3).
7. The counterweight-free lifting balance crane according to claim 1, characterized in that: the driving assembly (4) comprises a driving motor (42), a screw rod (43) and a lifter (44), a worm wheel connected with the screw rod (43) is arranged in the lifter (44), the lifter (44) is connected with the driving motor (42), and the end part of the screw rod (43) is connected with a guide wheel (51).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220847406.3U CN217102801U (en) | 2022-04-13 | 2022-04-13 | Lifting balance crane without counterweight |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220847406.3U CN217102801U (en) | 2022-04-13 | 2022-04-13 | Lifting balance crane without counterweight |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217102801U true CN217102801U (en) | 2022-08-02 |
Family
ID=82583255
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220847406.3U Active CN217102801U (en) | 2022-04-13 | 2022-04-13 | Lifting balance crane without counterweight |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217102801U (en) |
-
2022
- 2022-04-13 CN CN202220847406.3U patent/CN217102801U/en active Active
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