Counterweight lifting appliance convenient to separate and lock

Abstract

The utility model relates to the technical field of counterweight lifting appliances, and discloses a counterweight lifting appliance convenient to separate and lock, which comprises a first bearing top plate, an adjusting and fixing mechanism is arranged at the bottom of the first bearing top plate, a counterweight block is arranged in the adjusting and fixing mechanism, and a lifting hook auxiliary adjusting mechanism is arranged at the top of the first bearing top plate. According to the counterweight lifting appliance convenient to separate and lock, by arranging the adjusting and fixing mechanism, the front side, the back side, the left side, the right side and the bottom of a counterweight block can be positioned and fixed by rotating a handle and cooperatively using a worm gear, a worm, a first two-way screw rod, a second two-way screw rod, a first positioning plate and an L-shaped positioning plate; the balancing weight can be rapidly separated and locked according to actual requirements, the angle of the lifting ring can be dynamically adjusted according to the actual weight of the balancing weight by arranging the lifting hook auxiliary adjusting mechanism, different force arm changes are achieved, the more stable lifting effect is achieved, and practicability is enhanced.

Description

Technical Field

[0001] The utility model relates to the technical field of counterweight slings, in particular to a counterweight sling which is convenient for separation and locking. Background Art

[0002] With the development of the mechanical engineering industry, the maximum tonnage of cranes has reached 4,000 tons. For large-tonnage cranes, the installation of counterweights is the basis for ensuring their normal operation. During the installation of counterweight blocks, a counterweight sling that is easy to separate and lock is often used.

[0003] According to the description of a counterweight sling for hoisting disclosed on the patent website (authorization announcement number: CN213679444U), "The utility model discloses a counterweight sling for hoisting, which includes: a load-bearing plate, a first hook, a second hook and a hanging ring. A plurality of notches are opened on both sides of the load-bearing plate, and a plurality of clamping devices are installed on both sides of the load-bearing plate. The clamping device includes a clamping block, a rotating block, a hanging hole and a clamping plate. One end of the rotating block is installed below the notch through a rotating shaft, and the other end of the rotating block is installed with a clamping block inserted in the notch through a rotating shaft. A clamping plate is fixed at the end of the clamping block, and a hanging hole is opened on the rotating block. The first hook is located in the hanging hole, and a telescopic device is provided on the first hook. The telescopic device is connected to the first lifting rope, and the second hook is connected to the second lifting rope. In the above embodiment of the utility model, the technical problem of the counterweight falling off the hook that is easy to occur during hoisting counterweights is solved, and the utility model has the beneficial effects of safe and reliable hoisting and wide applicability."

[0004] In view of the above description, the applicant believes that there are the following problems:

[0005] During use, the utility model can support the bottom of the counterweight through the provided load-bearing plate and clamping device, and at the same time rotate the rotating block inwards, so that the clamping plate can clamp the counterweight through the clamping block, and then the side end face of the counterweight can be fixed. However, in actual application, the device can only clamp and position the double-side end faces of the counterweight, and it is difficult to achieve a better clamping effect. In addition, the position of the lifting hole on the top of the device is relatively fixed, and it is difficult to stably lift the counterweight according to the actual weight of the counterweight. During the lifting process, shaking and unstable lifting are prone to occur. Therefore, we urgently need a counterweight lifting device that is easy to separate and lock to solve the above problems. Utility Model Content

[0006] The utility model aims to provide a counterweight lifting device which is convenient for separation and locking, so as to solve the problems raised in the above-mentioned background technology.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a counterweight sling that is easy to separate and lock, comprising a first load-bearing top plate, an adjustment and fixing mechanism is arranged at the bottom of the first load-bearing top plate, a counterweight block is arranged inside the adjustment and fixing mechanism, and a hook auxiliary adjustment mechanism is arranged at the top of the first load-bearing top plate.

[0008] The adjusting and fixing mechanism comprises a first positioning component and a second positioning component, and the first positioning component is arranged outside the second positioning component.

[0009] Preferably, the first positioning assembly includes a support column, which is fixedly installed on the bottom of the first load-bearing top plate, a second load-bearing top plate is fixedly installed on the bottom of the support column, a first mounting frame is fixedly installed on the front and back of the second load-bearing top plate, a first bidirectional screw is rotatably installed inside the first mounting frame, a worm gear is fixedly installed on the outside of the first bidirectional screw, a first limiting frame is fixedly installed inside the support column, a first positioning frame is threadedly installed on the outside of the first bidirectional screw, a first connecting column is fixedly installed on the outside of the first positioning frame, and a first positioning plate is fixedly installed on the side of the first connecting column away from the first positioning frame, so as to facilitate clamping and positioning of the counterweight block on both sides.

[0010] Preferably, two groups of the first connecting columns are provided, and the two groups of the first connecting columns are symmetrically arranged outside the first bidirectional screw. The first connecting columns are slidably installed inside the first limit frame to facilitate clamping and positioning of the counterweight block.

[0011] Preferably, the second positioning assembly includes a second mounting frame, the second mounting frame is fixedly mounted on the bottom of the first load-bearing top plate, a second bidirectional screw is fixedly mounted inside the second mounting frame, a worm is fixedly mounted outside the second bidirectional screw, a handle is fixedly mounted on the right side of the second bidirectional screw, a second limit frame is fixedly mounted on the bottom of the adjustment and fixing mechanism, a second positioning frame is threadedly mounted on the outside of the second bidirectional screw, a second connecting column is fixedly mounted on the outside of the second positioning frame, and an L-shaped positioning plate is fixedly mounted on the side of the second connecting column away from the second positioning frame, so as to facilitate positioning and fixing of the left and right sides and the bottom of the counterweight block.

[0012] Preferably, the second positioning frame is provided with two groups, and the two groups of the second positioning frames are symmetrically arranged outside the second bidirectional screw, and the worm and the worm wheel, the second positioning frame are slidably installed inside the second limit frame to facilitate the control of the second positioning frame.

[0013] Preferably, the hook auxiliary adjustment mechanism includes a connecting frame, which is fixedly installed on the top of the first load-bearing top plate, a mounting column is rotatably installed inside the connecting frame, a first gear is fixedly installed outside the mounting column, a lifting ring is fixedly installed outside the mounting column, a plug-in column is plug-in installed inside the connecting frame, a broken gear is fixedly installed outside the plug-in column, a limiting annular plate is fixedly installed on the back of the broken gear, a pull ring is fixedly installed on the front of the broken gear, and a first spring is sleeved on the outside of the plug-in column, so as to dynamically adjust the angle of the lifting ring according to the actual weight of the counterweight block to achieve a more stable lifting effect.

[0014] Preferably, the residual gear is meshed with the first gear, the back of the first spring is fixedly mounted to the residual gear, and the front of the first spring is fixedly mounted inside the connecting frame, so as to facilitate locking and unlocking the angle of the lifting ring.

[0015] Compared with the prior art, the utility model provides a counterweight sling that is easy to separate and lock, and has the following beneficial effects:

[0016] 1. The counterweight sling which is easy to separate and lock is provided with an adjusting and fixing mechanism. During use, the handle can be turned to coordinate the use of the worm wheel, the worm, the first bidirectional screw, the second bidirectional screw, the first positioning plate, and the L-shaped positioning plate to position and fix the front and back sides, the left and right sides, and the bottom of the counterweight block, and the counterweight block can be quickly separated and locked according to actual needs.

[0017] 2. The counterweight sling that is easy to separate and lock is provided with an auxiliary adjustment mechanism of the hook. During use, the angle of the lifting ring is dynamically adjusted according to the actual weight of the counterweight block to achieve different changes in the force arm, so as to achieve a more stable lifting effect and enhance practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative labor:

[0019] Figure 1 This is a schematic diagram of the appearance structure of the utility model;

[0020] Figure 2 This is a schematic diagram of the structure of the utility model when viewed from above;

[0021] Figure 3 This is a schematic diagram of the disassembled structure of the first positioning component of the utility model;

[0022] Figure 4This is a schematic diagram of the disassembled structure of the second positioning component of the utility model;

[0023] Figure 5 This is a schematic diagram of the disassembled structure of the auxiliary adjustment mechanism of the hook of the utility model.

[0024] In the figure: 1. first load-bearing top plate; 2. adjusting and fixing mechanism; 21. first positioning assembly; 211. supporting column; 212. second load-bearing top plate; 213. first mounting frame; 214. first bidirectional screw; 215. worm gear; 216. first limiting frame; 217. first positioning frame; 218. first connecting column; 219. first positioning plate; 22. second positioning assembly; 221. second mounting frame; 222. second bidirectional screw; 223. worm gear; 224. handle; 225. second limiting frame; 226. second positioning frame; 227. second connecting column; 228. L-shaped positioning plate; 3. counterweight; 4. auxiliary adjustment mechanism of the hook; 41. connecting frame; 42. mounting column; 43. first gear; 44. lifting ring; 45. plug-in column; 46. residual gear; 47. limiting annular plate; 48. pull ring; 49. first spring. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0027] Embodiment 1:

[0028] See also Figure 1-4 The utility model provides a technical solution: a counterweight sling that is easy to separate and lock, including a first load-bearing top plate 1, an adjustment and fixing mechanism 2 is arranged at the bottom of the first load-bearing top plate 1, a counterweight block 3 is arranged inside the adjustment and fixing mechanism 2, and a hook auxiliary adjustment mechanism 4 is arranged at the top of the first load-bearing top plate 1.

[0029] The adjusting and fixing mechanism 2 comprises a first positioning component 21 and a second positioning component 22 , and the first positioning component 21 is arranged outside the second positioning component 22 .

[0030] Furthermore, the first positioning assembly 21 includes a support column 211, which is fixedly installed on the bottom of the first load-bearing top plate 1, a second load-bearing top plate 212 is fixedly installed on the bottom of the support column 211, a first mounting frame 213 is fixedly installed on the front and back of the second load-bearing top plate 212, a first bidirectional screw 214 is rotatably installed inside the first mounting frame 213, a worm gear 215 is fixedly installed on the outside of the first bidirectional screw 214, a first limiting frame 216 is fixedly installed inside the support column 211, a first positioning frame 217 is threadedly installed on the outside of the first bidirectional screw 214, a first connecting column 218 is fixedly installed on the outside of the first positioning frame 217, and a first positioning plate 219 is fixedly installed on the side of the first connecting column 218 away from the first positioning frame 217, so as to facilitate clamping and positioning of the counterweight 3 on both sides.

[0031] Furthermore, two groups of first connecting columns 218 are provided, and the two groups of first connecting columns 218 are symmetrically arranged outside the first bidirectional screw 214. The first connecting columns 218 are slidably installed inside the first limit frame 216 to facilitate clamping and positioning of the counterweight block 3.

[0032] Furthermore, the second positioning assembly 22 includes a second mounting frame 221, which is fixedly mounted on the bottom of the first load-bearing top plate 1, a second bidirectional screw 222 is fixedly mounted inside the second mounting frame 221, a worm 223 is fixedly mounted outside the second bidirectional screw 222, a handle 224 is fixedly mounted on the right side of the second bidirectional screw 222, a second limit frame 225 is fixedly mounted on the bottom of the adjustment and fixing mechanism 2, a second positioning frame 226 is threadedly mounted on the outside of the second bidirectional screw 222, a second connecting column 227 is fixedly mounted on the outside of the second positioning frame 226, and an L-shaped positioning plate 228 is fixedly mounted on the side of the second connecting column 227 away from the second positioning frame 226, so as to facilitate the positioning and fixing of the left and right sides and the bottom of the counterweight 3.

[0033] Furthermore, two groups of second positioning frames 226 are provided, and the two groups of second positioning frames 226 are symmetrically arranged outside the second bidirectional screw 222, the worm 223 and the worm wheel 215, and the second positioning frames 226 are slidably installed inside the second limit frame 225 to facilitate the control of the second positioning frames 226.

[0034] Embodiment 2:

[0035] See also Figure 5, and combined with Example 1, it is further obtained that the hook auxiliary adjustment mechanism 4 includes a connecting frame 41, the connecting frame 41 is fixedly installed on the top of the first load-bearing top plate 1, a mounting column 42 is rotatably installed inside the connecting frame 41, a first gear 43 is fixedly installed outside the mounting column 42, a lifting ring 44 is fixedly installed outside the mounting column 42, a plug-in column 45 is plugged and installed inside the connecting frame 41, a residual gear 46 is fixedly installed outside the plug-in column 45, a limiting annular plate 47 is fixedly installed on the back of the residual gear 46, a pull ring 48 is fixedly installed on the front of the residual gear 46, and a first spring 49 is sleeved and installed on the outside of the plug-in column 45, so as to dynamically adjust the angle of the lifting ring 44 according to the actual weight of the counterweight block 3 to achieve a more stable lifting effect.

[0036] Furthermore, the remaining gear 46 is meshed with the first gear 43 , the back of the first spring 49 is fixedly mounted to the remaining gear 46 , and the front of the first spring 49 is fixedly mounted to the inside of the connecting frame 41 , so as to facilitate locking and unlocking the angle of the lifting ring 44 .

[0037] In actual operation, when the device is used, first, according to the weight of the counterweight 3, the pull ring 48 is pulled to disengage the residual gear 46 from the first gear 43, and then the lifting ring 44 is rotated to adjust the lifting position to improve the lifting stability. After the adjustment is completed, the pull ring 48 is released, and under the action of the first spring 49, the residual gear 46 and the first gear 43 are restored to the meshing state, so that the angle of the lifting ring 44 is locked, and then the handle 224 is rotated to drive the second bidirectional screw 222 to rotate. Under the action of the second limit frame 225, the two sets of second positioning frames 226 set externally can be moved in a centering manner, and under the action of the L-shaped positioning plate 228, the lifting ring 44 can be adjusted to the lifting position. The left and right sides and the bottom of the counterweight block 3 are positioned and fixed. At the same time, the rotation of the second bidirectional screw 222 will cause the set worm 223 to rotate synchronously, and the worm wheel 215 meshing therewith will rotate synchronously, so that the first bidirectional screw 214 will rotate, and the two sets of first positioning frames 217 will be close to each other. Under the action of the first positioning plate 219, the counterweight block 3 is clamped and positioned on both sides. After the positioning is completed, the lifting rope can be inserted into the inside of the lifting ring 44 for lifting work. When it reaches the desired position, the handle 224 can be rotated in the opposite direction to separate the L-shaped positioning plate 228 and the first positioning plate 219 from the fixation of the counterweight block 3, and the counterweight block 3 can be taken out.

[0038] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the statement "comprise a ..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.

Claims

1. A counterweight sling that is easy to separate and lock, comprising a first load-bearing top plate (1), characterized in that: An adjusting and fixing mechanism (2) is arranged at the bottom of the first load-bearing top plate (1), a counterweight block (3) is arranged inside the adjusting and fixing mechanism (2), and a hook auxiliary adjusting mechanism (4) is arranged at the top of the first load-bearing top plate (1); The adjusting and fixing mechanism (2) comprises a first positioning component (21) and a second positioning component (22); the first positioning component (21) is arranged outside the second positioning component (22).

2. A counterweight sling that is easy to separate and lock according to claim 1, characterized in that: The first positioning assembly (21) comprises a support column (211), wherein the support column (211) is fixedly mounted on the bottom of the first load-bearing top plate (1), a second load-bearing top plate (212) is fixedly mounted on the bottom of the support column (211), a first mounting frame (213) is fixedly mounted on the front and back of the second load-bearing top plate (212), a first bidirectional screw (214) is rotatably mounted inside the first mounting frame (213), a worm gear (215) is fixedly mounted outside the first bidirectional screw (214), a first limiting frame (216) is fixedly mounted inside the support column (211), a first positioning frame (217) is threadedly mounted outside the first bidirectional screw (214), a first connecting column (218) is fixedly mounted outside the first positioning frame (217), and a first positioning plate (219) is fixedly mounted on the side of the first connecting column (218) away from the first positioning frame (217).

3. A counterweight sling that is easy to separate and lock according to claim 2, characterized in that: The first connecting columns (218) are provided in two groups, and the two groups of the first connecting columns (218) are symmetrically arranged outside the first bidirectional screw (214), and the first connecting columns (218) are slidably installed inside the first limiting frame (216).

4. The counterweight sling that is easy to separate and lock according to claim 1, characterized in that: The second positioning assembly (22) comprises a second mounting frame (221), the second mounting frame (221) is fixedly mounted on the bottom of the first load-bearing top plate (1), a second bidirectional screw (222) is fixedly mounted inside the second mounting frame (221), a worm (223) is fixedly mounted outside the second bidirectional screw (222), a handle (224) is fixedly mounted on the right side of the second bidirectional screw (222), a second limit frame (225) is fixedly mounted on the bottom of the adjustment and fixing mechanism (2), a second positioning frame (226) is threadedly mounted on the outside of the second bidirectional screw (222), a second connecting column (227) is fixedly mounted on the outside of the second positioning frame (226), and an L-shaped positioning plate (228) is fixedly mounted on the side of the second connecting column (227) away from the second positioning frame (226).

5. A counterweight sling that is easy to separate and lock according to claim 4, characterized in that: The second positioning frame (226) is provided with two groups, and the two groups of the second positioning frames (226) are symmetrically arranged outside the second bidirectional screw (222), and the worm (223) and the worm wheel (215), and the second positioning frame (226) are slidably installed inside the second limiting frame (225).

6. The counterweight sling that is easy to separate and lock according to claim 1, characterized in that: The hook auxiliary adjustment mechanism (4) comprises a connecting frame (41), wherein the connecting frame (41) is fixedly mounted on the top of the first load-bearing top plate (1), a mounting column (42) is rotatably mounted inside the connecting frame (41), a first gear (43) is fixedly mounted outside the mounting column (42), a lifting ring (44) is fixedly mounted outside the mounting column (42), a plug-in column (45) is plug-in mounted inside the connecting frame (41), a residual gear (46) is fixedly mounted outside the plug-in column (45), a limiting annular plate (47) is fixedly mounted on the back of the residual gear (46), a pull ring (48) is fixedly mounted on the front of the residual gear (46), and a first spring (49) is sleeved and mounted outside the plug-in column (45).

7. A counterweight sling that is easy to separate and lock according to claim 6, characterized in that: The residual gear (46) is meshed with the first gear (43), the back of the first spring (49) is fixedly mounted on the residual gear (46), and the front of the first spring (49) is fixedly mounted inside the connecting frame (41).

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