Uniformly stressed tension spring balancer and assembling method thereof

Abstract

The invention relates to the technical field of tension spring balancers, in particular to an evenly-stressed tension spring balancer and an assembling method thereof.The evenly-stressed tension spring balancer comprises a tension spring balancer body, a main pull rope and a connecting pipe, the main pull rope is installed at the bottom end of the tension spring balancer body, the connecting pipe is welded and fixed to the bottom end of the main pull rope, and the bottom of the connecting pipe is fixedly connected with a connecting frame; the two sides of the connecting frame are fixedly connected with the auxiliary pull rope control mechanism through bolts. The auxiliary pull rope control mechanism comprises a shell, a cavity is formed in the shell, the cavity transversely penetrates through the periphery of the shell, and a side cover is arranged on the side face of the cavity. And in the process of adjusting the length of the auxiliary pull rope, the take-up reel rotates to drive the auxiliary take-up mechanism to rotate, the movement of the pull rope can be controlled, the problems of bending and winding of the pull rope in the shell can be prevented, and the stability is high.

Description

Technical Field

[0001] The invention relates to the technical field of tension spring balancers, in particular to a tension spring balancer subjected to uniform force and an assembling method thereof. Background Art

[0002] The tension spring balancer with uniform force is a specially designed suspension and lifting device, which uses the elastic force of the spring to support and balance the weight, so that the weight is evenly stressed during the lifting and moving process, avoiding damage or instability caused by uneven force; The tension spring balancer with uniform force distribution provides users with a safe, efficient and comfortable solution for lifting heavy objects, especially suitable for precision working environments with high requirements for heavy object handling. Traditionally, a tension spring balancer that uses a single hook to lift the box is prone to shaking during actual application, so multiple zippers are used to lift the four corners of the box. If it is necessary to lift and control boxes of different sizes, zippers of different lengths need to be used for lifting, which is rather troublesome. Therefore, a tension spring balancer with uniform force and an assembly method thereof are proposed to address the above problems. Summary of the invention

[0003] The purpose of the present invention is to provide a tension spring balancer with uniform force and an assembly method thereof, so as to solve the problem that the box is prone to shaking during actual application of the traditional tension spring balancer which uses a single hook to lift the box, and then multiple zippers are used to lift the four corners of the box. If it is necessary to lift and control boxes of different sizes, zippers of different lengths need to be selected for lifting, which is a rather troublesome problem.

[0004] To achieve the above object, the present invention provides the following technical solutions: A tension spring balancer with uniform force and an assembly method thereof, comprising a tension spring balancer body, a main pull rope and a connecting pipe, wherein a main pull rope is installed at the bottom end of the tension spring balancer body, a connecting pipe is welded and fixed to the bottom end of the main pull rope, the bottom of the connecting pipe is fixedly connected to a connecting frame, and both sides of the connecting frame are fixedly connected to an auxiliary pull rope control mechanism by bolts; the auxiliary pull rope control mechanism comprises a shell, a cavity is opened inside the shell, the cavity runs through the shell horizontally, a side cover is provided on the side of the cavity, a first bevel gear is installed in the middle of the upper end of the cavity, A central shaft is welded and fixed in the middle of the upper end of the first bevel gear, the bottom end of the first bevel gear is meshed with the second bevel gear, a side shaft is fixedly connected to the center of the second bevel gear, a take-up drum is fixedly connected to the outer side of one end of the side shaft, the take-up drum comprises a take-up drum body, an outer side of one end of the take-up drum body is fixedly connected with an annularly distributed tooth, an auxiliary take-up mechanism is installed at the lower end of the take-up drum, elastic positioning frames are installed at both ends of the take-up drum, the middle position of the side shaft is rotatably connected to the central frame, and the bottom end of the auxiliary take-up mechanism is rotatably connected to the positioning block.

[0005] As a further optimization of the present invention, the auxiliary wire-winding mechanism includes a column shell, a straight tube is fixedly connected to the bottom end of the column shell, a vertically penetrating center hole is opened inside the column shell and the straight tube, a spiral material wire is fixedly connected to the upper end of the center hole, and a ring-shaped tooth groove is opened on the upper edge of the column shell.

[0006] As a further optimization of the present invention, the positioning block is fixedly connected to the inside of the cavity, the inner side of the upper end of the positioning block is rotatably connected to the straight tube, four positioning blocks are provided, and the middle of the interior of the positioning block is hollowed out.

[0007] As a further optimization of the present invention, the teeth arranged on the outside of the take-up drum body are meshed with the column shell through teeth grooves, an auxiliary pull rope is wrapped around the outside of the take-up drum body, the bottom of the auxiliary pull rope passes through the auxiliary take-up mechanism, the positioning block and the shell and is exposed at the bottom of the shell, and the bottom end of the auxiliary pull rope is fixedly connected to the hook.

[0008] As a further optimization of the present invention, the central axis is rotationally connected to the connecting frame, the upper end of the central axis is rotationally connected to the connecting pipe via a damping rubber ring, and the center points of the central axis, the connecting frame and the shell are arranged on the same vertical line.

[0009] As a further optimization of the present invention, there are four of each of the wire take-up drum and the second bevel gear, and there is a one-to-one correspondence between the wire take-up drum and the second bevel gear, and the center frame is arranged between the wire take-up drum and the second bevel gear.

[0010] As a further optimization of the present invention, the two ends of the center frame are fixedly connected to the inner wall of the shell, the elastic positioning frame is arranged on both sides of the take-up drum, the side of the elastic positioning frame close to the take-up drum is tightly attached to the auxiliary pull rope wrapped around the outside of the take-up drum through an arc setting, and the end of the elastic positioning frame away from the take-up drum is slidably connected to the inside of the shell through a telescopic spring.

[0011] As a further optimization of the present invention, there are four side shafts, the side shafts correspond to the side covers one by one, the angle between the side shafts and the side covers is 90°, the side shafts are rotationally connected to the side covers, and the side covers are fixedly connected to the shell by bolts.

[0012] As a further optimization of the present invention, the connecting frame is U-shaped, a circular hole for limiting the central axis is opened inside the connecting frame, and a circular hole for limiting the side axis is opened in the middle of the central frame.

[0013] As a further optimized content of the present invention, the following steps are included: Step I: adjusting the tension of the tension spring balancer body according to the need of hoisting the box: adjusting according to the weight of the box, the adjusted tension is slightly greater than the gravity of the box; Step II: Adjust the length of the auxiliary rope according to the distance between the four corners of the lifting box and the center point of the upper end: the length of the auxiliary rope exposed at the bottom of the shell can be adjusted by rotating the center axis; During the rotation of the central shaft, the first bevel gear is driven to rotate, during the rotation of the first bevel gear, the second bevel gear is driven to rotate, during the rotation of the second bevel gear, the side shaft is used to drive the take-up drum body to rotate, during the rotation of the take-up drum body, the auxiliary pull rope is retracted and released, and the column shell is driven to rotate at the same time, during the rotation of the column shell, the auxiliary pull rope is transported out of the shell through the spiral material line installed inside, and the length of the auxiliary pull rope exposed outside the shell is adjusted; Step III: Connect the auxiliary pull rope to the lifting box through the hook: connect the hook to the four corners of the lifting box for lifting; Step IV: Lift the lifting box: During the lifting process, the auxiliary pull rope positions the four corners of the lifting box to balance the forces at the four corners of the lifting box, and the main pull rope limits the shell, further improving the stability of the tension spring balancer during the lifting process.

[0014] Compared with the prior art, the present invention has the following beneficial effects: 1. In the present invention, by setting up the auxiliary rope control mechanism, in the process of hoisting and controlling boxes of different sizes, the length of the auxiliary rope can be adjusted by rotating the central axis, and the adjustment is relatively convenient. In the process of adjusting the length of the auxiliary rope, the auxiliary wire-taking mechanism is driven to rotate by the rotation of the wire-taking drum, so that the movement of the rope can be controlled, and the rope can be prevented from bending and winding inside the shell, and the stability is relatively high. 2. In the present invention, the uniform force tension spring balancer of this scheme realizes accurate adjustment and balance of the hoisting box through a fine auxiliary pull rope control mechanism. By using the cooperation of the bevel gear system and the take-up drum, the operator can easily adjust the tension and the length of the auxiliary pull rope according to the weight and size of the box, ensuring that the box is uniformly stressed during the hoisting process and avoiding damage caused by uneven force; 3. In the present invention, the auxiliary wire-winding mechanism of the tension spring balancer is cleverly designed, and the friction between the spiral material line and the auxiliary pull rope is used to achieve smooth transportation of the pull rope. At the same time, the slipping mechanism can be used to adjust the transportation speed when necessary, thereby increasing the flexibility of operation. The use of multiple positioning blocks provides precise positioning for the auxiliary wire-winding mechanism, ensuring the accurate retraction and release of the auxiliary pull rope, and improving the controllability and accuracy of the lifting process, which is particularly important for working environments that require fine operations. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic diagram of the structure of the auxiliary pull rope control mechanism of the present invention; Figure 3 It is a schematic diagram of the shell structure of the present invention; Figure 4 This is a schematic diagram of the installation position structure of the second bevel gear of the present invention; Figure 5 This is a schematic diagram of the side shaft installation position structure of the present invention; Figure 6 This is a schematic diagram of the structure of the auxiliary wire-taking mechanism of the present invention; Figure 7 This is a schematic diagram of the structure of the elastic positioning frame of the present invention; Figure 8 This is a schematic diagram of the center frame structure of the present invention; Fig. 9 It is a schematic diagram of the structure of the connecting frame of the present invention.

[0016] In the figure: 1. The main body of the tension spring balancer; 2. The main pull rope; 3. The connecting pipe; 4. Auxiliary pull rope control mechanism; 41. Housing; 42. Cavity; 43. Positioning block; 44. Center shaft; 45. First bevel gear; 46. ​​take-up reel; 461. take-up reel body; 462. teeth; 47. elastic positioning frame; 48. center frame; 49. second bevel gear; 410. side shaft; 411, auxiliary wire collection mechanism; 4111, column shell; 4112, straight tube; 4113, tooth groove; 4114, center hole; 4115, spiral material wire; 5. Side cover; 6. Connecting frame; 7. Hook; 8. Auxiliary pull rope. DETAILED DESCRIPTION

[0017] See also Figure 1-9 , the present invention provides a technical solution: A tension spring balancer with uniform force and an assembly method thereof, comprising a tension spring balancer body 1, a main pull rope 2 and a connecting tube 3, wherein the main pull rope 2 is installed at the bottom end of the tension spring balancer body 1, the connecting tube 3 is welded and fixed to the bottom end of the main pull rope 2, the bottom of the connecting tube 3 is fixedly connected to a connecting frame 6, and the two sides of the connecting frame 6 are fixedly connected to an auxiliary pull rope control mechanism 4 by bolts; the auxiliary pull rope control mechanism 4 comprises a shell 41, a cavity 42 is provided inside the shell 41, the cavity 42 runs through the shell 41 horizontally, a side cover 5 is provided on the side of the cavity 42, a first bevel gear 45 is installed in the middle of the upper end of the cavity 42, and the upper end of the first bevel gear 45 is fixedly connected to the auxiliary pull rope control mechanism 4 by bolts; the auxiliary pull rope control mechanism 4 comprises a shell 41, a cavity 42 is provided inside the shell 41, the cavity 42 runs through the shell 41 horizontally, a side cover 5 is provided on the side of the cavity 42, a first bevel gear 45 is installed in the middle of the upper end of the cavity 42, and a first bevel gear 45 is fixedly connected to the upper end of the first bevel gear 45. A central shaft 44 is welded and fixed in the middle, and the bottom end of the first bevel gear 45 is meshed with the second bevel gear 49. A side shaft 410 is fixedly connected to the center of the second bevel gear 49. A take-up drum 46 is fixedly connected to the outer side of one end of the side shaft 410. The take-up drum 46 includes a take-up drum body 461. An outer side of one end of the take-up drum body 461 is fixedly connected with an annularly distributed tooth 462. An auxiliary take-up mechanism 411 is installed at the lower end of the take-up drum 46. Elastic positioning frames 47 are installed at both ends of the take-up drum 46. The middle position of the side shaft 410 is rotatably connected to the central frame 48, and the bottom end of the auxiliary take-up mechanism 411 is rotatably connected to the positioning block 43.

[0018] As a technical solution for further implementation of the present scheme, the auxiliary wire-taking mechanism 411 includes a column shell 4111, a straight tube 4112 is fixedly connected to the bottom end of the column shell 4111, a vertically penetrating center hole 4114 is provided inside the column shell 4111 and the straight tube 4112, a spiral material wire 4115 is fixedly connected to the upper end of the center hole 4114, and a ring-shaped tooth groove 4113 is provided on the upper edge of the column shell 4111. Through the auxiliary wire-taking mechanism 411 set as above, the friction force generated between the spiral material wire 4115 and the auxiliary pull rope 8 made of steel wire during the rotation process can be utilized to transport the auxiliary pull rope 8; at the same time, the conveying speed can also be adjusted by utilizing the slippage between the spiral material wire 4115 and the auxiliary pull rope 8 made of steel wire during the rotation process; As a technical solution for further implementing the present invention, the positioning block 43 is fixedly connected to the inside of the cavity 42, and the inner side of the upper end of the positioning block 43 is rotatably connected to the straight tube 4112. There are four positioning blocks 43, and the middle of the positioning block 43 is hollowed out. The auxiliary line-taking mechanism 411 can be positioned by the multiple positioning blocks 43 provided as above. As a technical solution for further implementation of this scheme, the teeth 462 arranged on the outside of the take-up drum body 461 are meshed with the column shell 4111 through the tooth grooves 4113, and the auxiliary pull rope 8 is wound around the outside of the take-up drum body 461. The bottom of the auxiliary pull rope 8 passes through the auxiliary take-up mechanism 411, the positioning block 43 and the shell 41 and is exposed at the bottom of the shell 41. The bottom end of the auxiliary pull rope 8 is fixedly connected to the hook 7. In the actual application process, the above arrangement can drive the column shell 4111 to rotate by the rotation of the take-up drum body 461; As a further technical solution of this solution, the central shaft 44 is rotatably connected to the connecting frame 6, the upper end of the central shaft 44 is rotatably connected to the connecting pipe 3 through a damping rubber ring, and the central points of the central shaft 44, the connecting frame 6 and the housing 41 are arranged on the same vertical line. Through the above arrangement, the stability of the device as a whole during operation can be further improved; As a further technical solution for the implementation of this scheme, there are four take-up reels 46 and four second bevel gears 49, and the take-up reels 46 and the second bevel gears 49 correspond to each other one by one. The center frame 48 is arranged between the take-up reels 46 and the second bevel gears 49. Through the above arrangement, the take-up reels 46 and the second bevel gears 49 can be positioned in cooperation with the side shaft 410. As a technical solution for further implementation of this scheme, the two ends of the center frame 48 are fixedly connected to the inner wall of the shell 41, and the elastic positioning frame 47 is arranged on both sides of the take-up drum 46. The side of the elastic positioning frame 47 close to the take-up drum 46 is closely attached to the auxiliary pull rope 8 wound on the outside of the take-up drum 46 through an arc setting, and the end of the elastic positioning frame 47 away from the take-up drum 46 is slidably connected to the inside of the shell 41 through a telescopic spring. The auxiliary pull rope 8 wound on the outside of the take-up drum 46 can be limited by the elastic positioning frame 47 arranged as above; As a further technical solution of the present invention, four side shafts 410 are provided, and the side shafts 410 correspond to the side covers 5 one by one. The angle formed between the side shafts 410 and the side covers 5 is 90°. The side shafts 410 and the side covers 5 are rotatably connected, and the side covers 5 are fixedly connected to the housing 41 by bolts. Through the above arrangement, the side shafts 410 can be further limited. As a further technical solution of the present invention, the connecting frame 6 is U-shaped, a circular hole for limiting the central axis 44 is provided inside the connecting frame 6, and a circular hole for limiting the side axis 410 is provided in the middle of the central frame 48. The above arrangement can further improve the stability of the device. As a technical solution for further implementation of this scheme, the following steps are included: Step I: adjusting the tension of the tension spring balancer body 1 according to the need of hoisting the box: adjusting according to the weight of the box, the adjusted tension should be slightly greater than the gravity of the box; Step II: Adjust the length of the auxiliary pull rope 8 according to the distance between the four corners of the hoisting box and the upper center point: the length of the auxiliary pull rope 8 exposed at the bottom of the shell 41 can be adjusted by rotating the central shaft 44; During the rotation of the central shaft 44, the first bevel gear 45 is driven to rotate. During the rotation of the first bevel gear 45, the second bevel gear 49 is driven to rotate. During the rotation of the second bevel gear 49, the side shaft 410 is used to drive the take-up drum body 461 to rotate. During the rotation of the take-up drum body 461, the auxiliary tension spring balancer main rope 8 is retracted and released, and the column shell 4111 is driven to rotate at the same time. During the rotation of the column shell 4111, the auxiliary pull rope 8 is transported out from the inside of the shell 41 through the spiral material line 4115 installed inside, and the length of the auxiliary pull rope 8 exposed outside the shell 41 is adjusted. Step III: Connect the auxiliary pull rope 8 to the lifting box through the hook 7: connect the hook 7 to the four corners of the lifting box to carry out lifting; Step IV: Lifting the lifting box: During the lifting process, the auxiliary pull rope 8 positions the four corners of the lifting box to balance the forces at the four corners of the lifting box, and the main pull rope 2 limits the shell 41, further improving the stability of the tension spring balancer during the lifting process.

[0019] This article uses specific examples to illustrate the principles and implementation methods of the present invention. The above examples are only used to help understand the method and core ideas of the present invention. The above is only a preferred implementation of the present invention. It should be pointed out that due to the limitations of textual expression and the objective existence of infinite specific structures, ordinary technicians in this technical field can make several improvements, modifications or changes without departing from the principles of the present invention, and can also combine the above technical features in an appropriate manner; these improvements, modifications, changes or combinations, or the direct application of the inventive concept and technical solution to other occasions without improvement, should be regarded as the protection scope of the present invention.

Claims

1. A tension spring balancer with uniform force, comprising a tension spring balancer body (1), a main pull rope (2) and a connecting pipe (3), characterized in that: A main pull rope (2) is installed at the bottom end of the tension spring balancer body (1), a connecting pipe (3) is welded and fixed to the bottom end of the main pull rope (2), the bottom of the connecting pipe (3) is fixedly connected to a connecting frame (6), and both sides of the connecting frame (6) are fixedly connected to the auxiliary pull rope control mechanism (4) by bolts; The auxiliary pull rope control mechanism (4) comprises a shell (41), a cavity (42) is provided inside the shell (41), the cavity (42) runs through the shell (41) transversely, a side cover (5) is provided on the side of the cavity (42), a first bevel gear (45) is installed in the middle of the upper end of the cavity (42), a center shaft (44) is welded and fixed in the middle of the upper end of the first bevel gear (45), the bottom end of the first bevel gear (45) is meshed with a second bevel gear (49), the center of the second bevel gear (49) is fixedly connected to a side shaft (410), and the A wire take-up drum (46) is fixedly connected to the outside of one end of the side shaft (410), the wire take-up drum (46) comprises a wire take-up drum body (461), annularly distributed teeth (462) are fixedly connected to the outside of one end of the wire take-up drum body (461), an auxiliary wire take-up mechanism (411) is installed at the lower end of the wire take-up drum (46), elastic positioning frames (47) are installed at both ends of the wire take-up drum (46), the middle position of the side shaft (410) is rotatably connected to the center frame (48), and the bottom end of the auxiliary wire take-up mechanism (411) is rotatably connected to the positioning block (43).

2. A tension spring balancer with uniform force according to claim 1, characterized in that: The auxiliary wire-receiving mechanism (411) comprises a column shell (4111), the bottom end of which is fixedly connected to a straight tube (4112), a vertically penetrating center hole (4114) is provided inside the column shell (4111) and the straight tube (4112), a spiral wire (4115) is fixedly connected inside the upper end of the center hole (4114), and an annularly distributed tooth groove (4113) is provided on the upper edge of the column shell (4111).

3. The tension spring balancer with uniform force according to claim 1, characterized in that: The positioning block (43) is fixedly connected to the inside of the cavity (42) around the periphery, and the inner side of the upper end of the positioning block (43) is rotatably connected to the straight tube (4112). Four positioning blocks (43) are provided, and the middle of the interior of the positioning block (43) is hollowed out.

4. The tension spring balancer with uniform force according to claim 1, characterized in that: The teeth (462) arranged on the outside of the take-up drum body (461) are meshed with the column shell (4111) through the tooth grooves (4113); an auxiliary pull rope (8) is wound around the outside of the take-up drum body (461); the bottom of the auxiliary pull rope (8) passes through the auxiliary take-up mechanism (411), the positioning block (43) and the shell (41) and is exposed at the bottom of the shell (41); the bottom end of the auxiliary pull rope (8) is fixedly connected to the hook (7).

5. The tension spring balancer with uniform force according to claim 1, characterized in that: The central shaft (44) is rotatably connected to the connecting frame (6), the upper end of the central shaft (44) is rotatably connected to the connecting pipe (3) via a damping rubber ring, and the central points of the central shaft (44), the connecting frame (6) and the housing (41) are arranged on the same vertical line.

6. The tension spring balancer with uniform force according to claim 1, characterized in that: The wire take-up reels (46) and the second bevel gears (49) are each provided with four, the wire take-up reels (46) and the second bevel gears (49) correspond one to one, and the center frame (48) is arranged between the wire take-up reels (46) and the second bevel gears (49).

7. The tension spring balancer with uniform force according to claim 1, characterized in that: The two ends of the center frame (48) are fixedly connected to the inner wall of the housing (41), and the elastic positioning frame (47) is arranged on both sides of the take-up drum (46). The side of the elastic positioning frame (47) close to the take-up drum (46) is closely attached to the auxiliary pull rope (8) wound around the outside of the take-up drum (46) through an arc-shaped arrangement, and the end of the elastic positioning frame (47) away from the take-up drum (46) is slidably connected to the inside of the housing (41) through a telescopic spring.

8. The tension spring balancer with uniform force according to claim 1, characterized in that: Four side shafts (410) are provided, and the side shafts (410) correspond to the side covers (5) one by one. The angle formed between the side shafts (410) and the side covers (5) is 90°. The side shafts (410) and the side covers (5) are rotationally connected, and the side covers (5) are fixedly connected to the housing (41) via bolts.

9. The tension spring balancer with uniform force according to claim 1, characterized in that: The connecting frame (6) is U-shaped, a circular hole for limiting the position of the central shaft (44) is provided inside the connecting frame (6), and a circular hole for limiting the position of the side shaft (410) is provided in the middle of the central frame (48).

10. An assembly method for a tension spring balancer with uniform force according to any one of claims 1 to 9, characterized in that: The method comprises the following steps: Step I: adjusting the tension of the tension spring balancer body (1) according to the need of hoisting the box: adjusting the tension according to the weight of the box, and the adjusted tension should be slightly greater than the gravity of the box; Step II: adjusting the length of the auxiliary pull rope (8) according to the distance between the four corners of the lifting box and the upper center point: the length of the auxiliary pull rope (8) exposed at the bottom of the shell (41) can be adjusted by rotating the central shaft (44); During the rotation of the central shaft (44), the first bevel gear (45) is driven to rotate. During the rotation of the first bevel gear (45), the second bevel gear (49) is driven to rotate. During the rotation of the second bevel gear (49), the side shaft (410) is used to drive the take-up drum body (461) to rotate. During the rotation of the take-up drum body (461), the auxiliary pull rope (8) is retracted and released, and the column shell (4111) is driven to rotate. During the rotation of the column shell (4111), the auxiliary pull rope (8) is transported out from the inside of the shell (41) through the spiral material line (4115) installed inside, so that the length of the auxiliary pull rope (8) exposed outside the shell (41) is adjusted. Step III: Connect the auxiliary pull rope (8) to the lifting box through the hook (7): connect the hook (7) to the four corners of the lifting box to perform lifting; Step IV: lifting the lifting box: during the lifting process, the auxiliary pull rope (8) positions the four corners of the lifting box so that the forces at the four corners of the lifting box are balanced, and the main pull rope (2) limits the shell (41), further improving the stability of the tension spring balancer during the lifting process.

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