Cylindrical material lifting appliance
By designing a cylindrical material piano, the combination of screw, kit nut component, snail sleeve and telescopic component is used to achieve accurate tightening of the inner wall of the cylindrical material, solving inaccurate clamping control in the existing technology and solving the inaccurate control and control in the existing technology. The time -consuming and labor -intensive problem of manual transportation has improved the safety and reliability of hanging transportation.
Patent Information
- Application Number
- CN202421164727.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-24
- Publication Date
- 2025-01-28
- Estimated Expiration
- 2034-05-24
AI Technical Summary
In the prior art, when hoisting cylindrical materials, the clamping force control accuracy is poor, which can easily lead to cracking of the upper part of the cylindrical materials, and manual handling is time-consuming and labor-intensive, posing a safety hazard.
Design a cylindrical material picker, which combines the combination of screw, kit nut component, snail sleeve and multiple telescopic components to achieve tightness from the inner cavity of the cylindrical material and then hanging the material. The piano is coordinated with the thread of the screw and the screw's thread to realize the linear movement of the thread and the radial open or closing of the radial component of the retractable component to accurately control the internal tightening force.
The inner wall of the cylindrical material is achieved accurately, which improves the safety and reliability of lifting, avoids the risk of cracked materials, and reduces the labor intensity of the operator.
Smart Images
Figure CN222410740U_ABST
Abstract
Description
Technical Field
[0001] The present disclosure relates to the field of lifting tools, and more particularly to a lifting tool for cylindrical materials. Background Art
[0002] In the production workshop, cylindrical materials are usually transported to the product storage area by self-made external clamping slings or manually.
[0003] Figure 1 This is a schematic diagram of the known cylindrical material lifting. Figure 1 In the figure, the external clamping hanger 300 is hooked and supported at the bottom of the cylindrical material 200 and the force (clamping force) is controlled by a lifting crane (not shown). However, the control accuracy of this clamping force is poor. For thin-walled and brittle cylindrical materials, the upper part of the cylindrical material, especially the upper edge, may crack easily due to improper control of the clamping force.
[0004] Manual handling is time-consuming and labor-intensive, and poses safety risks such as operator fatigue and injuries from falling materials. Utility Model Content
[0005] In view of the problems existing in the background technology, an object of the present invention is to provide a cylindrical material lifting device, which can radially tighten the inner cavity of the cylindrical material and then lift the cylindrical material.
[0006] Another object of the present disclosure is to provide a cylindrical material hanger that can more accurately control the internal support force.
[0007] Thus, a cylindrical material hoist is provided, which includes a screw, a set nut assembly, a screw sleeve, and a plurality of telescopic assemblies; the top of the screw is used to be lifted; the set nut assembly includes a set and two limit nuts, the set is sleeved on the corresponding light rod position of the screw with clearance fit, the set is configured not to rotate with the rotation of the screw, the two limit nuts are respectively located at the upper and lower ends of the set and cooperate with the threads of the screw, the two limit nuts are used to limit the set to the corresponding light rod position of the screw and when there is friction between the two limit nuts and the set, the friction force is not enough to drive the set to rotate; the screw sleeve is axially spaced from the set nut assembly and is located on the side of the set nut assembly close to the top of the screw, and the screw sleeve The thread is connected to the threaded part of the screw; a plurality of telescopic components are arranged around the screw, each telescopic component includes a support shoe, a first liner and a second liner, one end of the first liner is pivotally connected to the support shoe, the other end of the first liner is pivotally connected to the kit of the kit nut assembly, the second liner is located above the first liner, one end of the second liner is pivotally connected to the support shoe, the other end of the second liner is pivotally connected to the screw sleeve, the support shoe is used to contact and tighten the inner wall of the cylindrical material; the screw sleeve is configured to move linearly downward when the screw rotates so that the plurality of telescopic components are radially opened and then the inner wall of the cylindrical material is tightened by the support shoe, and move linearly upward so that the plurality of telescopic components are radially contracted and then the support shoe is released to tighten the inner wall of the cylindrical material.
[0008] The beneficial effects of the present disclosure are as follows: In the cylindrical material hoist of the present disclosure, the linear downward movement of the screw sleeve and the radial opening of all telescopic components are realized through the thread cooperation between the screw sleeve and the screw rod, so as to realize the radial tightening from the inner cavity of the cylindrical material and then lift the cylindrical material. The degree of radial opening of all telescopic components (i.e., the internal tightening force) is determined by the stroke of the linear downward movement of the screw sleeve, and the stroke of the linear downward movement of the screw sleeve can be determined by the axial span of the thread between the screw sleeve and the screw rod, and this span is ultimately reflected in the number of rotations of the screw rod, and the number of rotations can be manually determined more accurately by the operator, thereby, compared with the external clamping type hoist of the background technology, the internal tightening force of the cylindrical material hoist can be more accurately controlled, and thus it is more reliably applicable to the lifting of thin-walled brittle cylindrical materials. BRIEF DESCRIPTION OF THE DRAWINGS
[0009] Figure 1 It is a schematic diagram of the known cylindrical material lifting.
[0010] Figure 2 is a stereoscopic view of a cylindrical material spreader according to the present disclosure.
[0011] Figure 3 It is a front view of the cylindrical material spreader according to the present disclosure, wherein two states of the telescopic assembly, namely, the opened state and the retracted state, are shown.
[0012] The reference numerals are described as follows:
[0013] 100 cylindrical material spreader P mounting plate
[0014] 1 screw B bolt
[0015] 2 sets of nut assembly N fixing nut
[0016] 21 sets of G1 elastic washers
[0017] 22 limit nut G2 flat washer
[0018] 3 screw sleeves 5 handle bushings
[0019] 4 telescopic components 6 handles
[0020] 41 Grip 7 Handle Rubber Gloves
[0021] 411 groove 8 ring
[0022] 42 first lining plate 200 cylinder material
[0023] 43 Second lining 300 external clamping hanger DETAILED DESCRIPTION
[0024] The accompanying drawings show embodiments of the present disclosure, and it will be understood that the disclosed embodiments are merely examples of the present disclosure, and the present disclosure can be implemented in various forms. Therefore, the specific details disclosed herein should not be interpreted as limiting, but merely as the basis for the claims and as a representative basis for teaching ordinary technicians in the field to implement the present disclosure in various ways.
[0025] In the description of the present disclosure, unless otherwise specified, the terms “first”, “second”, etc. are only used for the purpose of description and component identification, and should not be understood as relative importance and mutual relationship.
[0026] Reference Figure 2 and Figure 3 According to the present disclosure, the cylindrical material hanger 100 includes a screw rod 1, a sleeve nut assembly 2, a threaded sleeve 3, and a plurality of telescopic assemblies 4.
[0027] The top of the screw 1 is used to be lifted. The sleeve nut assembly 2 includes a sleeve 21 and two limit nuts 22. The sleeve 21 is sleeved on the corresponding position of the screw 1 with clearance fit. The sleeve 21 is configured not to rotate with the rotation of the screw 1. The two limit nuts 22 are respectively located at the upper and lower ends of the sleeve 21 and cooperate with the threads of the screw 1. The two limit nuts 22 are used to limit the sleeve 21 to the corresponding position of the screw 1. When there is friction between the two limit nuts 22 and the sleeve 21, the friction force is not enough to drive the sleeve 21 to rotate. The screw sleeve 3 is axially spaced from the sleeve nut assembly 2 and is located on the side of the sleeve nut assembly 2 close to the top of the screw 1. The screw sleeve 3 is threadedly connected to the threaded portion of the screw 1. A plurality of telescopic components 4 are arranged around the screw 1, each of which comprises a shoe 41, a first liner 42 and a second liner 43, one end of the first liner 42 is pivotally connected to the shoe 41, the other end of the first liner 42 is pivotally connected to the sleeve 21 of the sleeve nut assembly 2, the second liner 43 is located above the first liner 42, one end of the second liner 43 is pivotally connected to the shoe 41, the other end of the second liner 43 is pivotally connected to the screw sleeve 3, the shoe 41 is used to contact and tighten the inner wall of the cylindrical material (not shown). The screw sleeve 3 is configured to move linearly downward when the screw 1 rotates so that the plurality of telescopic components 4 are radially opened and the inner wall of the cylindrical material is tightened by the shoe 41, and to move linearly upward so that the plurality of telescopic components 4 are radially retracted and the shoe 41 is released to tighten the inner wall of the cylindrical material.
[0028] During operation:
[0029] When the cylindrical material sling 100 is inserted into the inner cavity of the cylindrical material and the support boots 41 of each telescopic assembly 4 are pre-contacted with the inner wall of the cylindrical material, the friction force formed by the pre-contact of the support boots 41 with the inner wall of the cylindrical material prevents the sleeve 21 of the sleeve nut assembly 2 from rotating, and further prevents the multiple telescopic assemblies 4 from rotating together with the screw sleeve 3. The operator rotates the screw 1, and the rotation of the screw 1 drives the screw sleeve 3 to move linearly downward toward the bottom end of the screw 1 through the threaded fit between the screw 1 and the screw sleeve 3. The screw sleeve 3 drives the second lining plates 43 of all telescopic assemblies 4 to open radially outward. The second lining plates 43 of all telescopic assemblies 4 open radially outward, and at the same time, drive the support boots 41 and the first lining plates 42 to open radially outward, thereby realizing the radial opening of each telescopic assembly 4, and further tightening the inner wall of the cylindrical material.
[0030] When it is necessary to release the cylindrical material hanger 100, the operator rotates the screw 1 in the opposite direction. The rotation of the screw 1 drives the screw sleeve 3 to move linearly upward toward the top of the screw 1 through the threaded cooperation between the screw 1 and the screw sleeve 3. The friction formed by the support shoe 41 and the inner wall of the cylindrical material prevents the rotation of the kit 21 of the kit nut assembly 2, and further prevents the rotation of multiple telescopic assemblies 4 together with the screw sleeve 3. The screw sleeve 3 drives the second lining plates 43 of all telescopic assemblies 4 to retract radially inward. The second lining plates 43 of all telescopic assemblies 4 retract radially inward, and at the same time, drives the support shoe 41 and the first lining plate 42 to retract radially inward, thereby realizing the radial retraction of each telescopic assembly 4, and further realizing the release of the tightening of the inner wall of the cylindrical material.
[0031] In the cylindrical material hanger 100 disclosed in the present invention, the axial size of the corresponding position of the bare rod of the screw rod 1 where the sleeve 21 is located is preferably slightly larger than the axial size of the sleeve 21, and the positions of the upper and lower edges of the bare rod are the partial threads of the screw rod 1 corresponding to the two limit nuts 22. The axial size of the threaded portion of the screw rod 1 threadedly connected to the screw sleeve 3 is based on the linear travel of the screw sleeve 3 in the up and down directions when each telescopic assembly 4 is radially opened to the maximum extent and radially contracted to the minimum extent.
[0032] In the cylindrical material lifter 100 disclosed in the present invention, in order to achieve pre-contact and improve work efficiency, before the cylindrical material lifter 100 is inserted into the inner cavity of the cylindrical material, the operator holds the support shoe 41 or the screw sleeve 3 with one hand and rotates the screw 1 with the other hand to radially open all the telescopic components 4 to a size close to the inner cavity of the cylindrical material, and then inserts the cylindrical material lifter 100 into the specified position of the inner cavity of the cylindrical material. After the cylindrical material lifter 100 is inserted into the inner cavity of the cylindrical material, the operator still holds the screw sleeve 3 with one hand and rotates the screw 1 with the other hand, so that all the telescopic components 4 are radially opened to contact the inner cavity of the cylindrical material, thereby achieving pre-contact.
[0033] In the cylindrical material hoist 100 disclosed in the present invention, the linear downward movement of the screw sleeve 3 and the radial opening of all telescopic components 4, which are realized by the threaded cooperation between the screw sleeve 3 and the screw rod 1, realizes radial tightening from the inner cavity of the cylindrical material, and then hoists the cylindrical material. The degree of radial opening of all telescopic components 4 (i.e., the internal tightening force) is determined by the stroke of the linear downward movement of the screw sleeve 3, and the stroke of the linear downward movement of the screw sleeve 3 can be determined by the axial span of the thread between the screw sleeve 3 and the screw rod 1, and this span is ultimately reflected in the number of rotations of the screw rod 1, and the number of rotations can be manually determined more accurately by the operator. Therefore, compared with the external clamping type hoist 300 of the background technology, the internal tightening force of the cylindrical material hoist 100 can be more accurately controlled, and thus it is more reliably applicable to the lifting of thin-walled brittle cylindrical materials.
[0034] In addition, when the axial size of the support shoe 41 is smaller than the axial size of the inner cavity of the cylindrical material, the top and bottom of the support shoe 41 are axially spaced from the top and bottom of the inner wall of the inner cavity of the cylindrical material, respectively, which can also reduce the risk of edge cracking of the top and bottom of the inner wall of the inner cavity of the thin-walled and brittle cylindrical material.
[0035] There can be at least two sets of nut assemblies 2, and the at least two sets of nut assemblies 2 are axially spaced apart on the screw rod 1, and the number of the first liner plates 42 in each telescopic assembly 4 is consistent with the number of the sets of nut assemblies 2. Figure 2 and Figure 3 In the example shown, there are two sets of nut assemblies 2, but the number of sets of nut assemblies 2 can be three or more. Using at least two sets of nut assemblies 2 can increase the force points of the shoe 41 in the axial direction and the mutual transmission of force on the entire shoe 41, that is, the mutual transmission of force between the shoe 41, the first liner 42 and the second liner 43 and the screw sleeve 3, the set 21 and the screw 1, so that the axial force of the shoe 41 is more uniform, which is conducive to improving the stability and reliability of the internal support of the shoe 41.
[0036] like Figure 2 As shown, in one example, the support shoe 41 has a groove 411, and one end of the first liner 42 and one end of the second liner 43 are received and pivotally connected in the groove 411; the kit 21 and the screw sleeve 3 are both provided with multiple pairs of mounting plates P surrounding the screw 1, and the other end of the first liner 42 and the other end of the second liner 43 are each received and pivotally connected between the corresponding pair of mounting plates P.
[0037] Furthermore, one end of the first lining plate 42 and one end of the second lining plate 43 are pivotally connected in the groove 411 by means of a bolt B passing through the support shoe 41 and two fixing nuts N located on opposite sides of the bolt B; the other end of the first lining plate 42 and the other end of the second lining plate 43 are pivotally connected between the corresponding pair of mounting plates P by means of a bolt B passing through the corresponding pair of mounting plates P and two fixing nuts N located on opposite sides of the bolt B; an elastic washer G1 and a flat washer G2 are provided between the support shoe 41 and the corresponding fixing nuts N, and an elastic washer G1 and a flat washer G2 are provided between the mounting plate P and the corresponding fixing nuts N.
[0038] like Figure 2 As shown, the multiple telescopic components 4 are arranged at equal intervals around the screw 1, thereby improving the uniformity of the internal tightening force of the multiple support shoes 41 on the inner wall of the cylindrical material in the circumferential direction.
[0039] like Figure 2As shown, in one example, the cylindrical material spreader 100 further includes a handle bushing 5 and a handle 6; the handle bushing 5 is located on the side of the screw sleeve 3 away from the lower sleeve 21 (i.e., located near the top of the screw 1), and the handle bushing 5 is fixed (for example, by welding) to the screw 1; the handle 6 is connected to the handle bushing 5, and the handle 6 is used for the operator to apply force to drive the screw 1 to rotate. The provision of the handle 6 and the handle bushing 5 improves the convenience of the operator rotating the screw 1 and saves the use of force.
[0040] like Figure 2 As shown, there are multiple handles 6 and the multiple handles 6 are arranged at equal intervals around the screw rod 1. This is conducive to the operator to continue rotating the screw rod 1 by changing the handle 6 held as the screw rod 1 rotates without moving in place, thereby improving the convenience of operation. Figure 2 In the embodiment, there are three handles 6, but there may be two or more than four.
[0041] In one example, the handle 6 is detachably threadedly connected to the handle bushing 5 , so that the drum material spreader 100 can be disassembled and stored in a small storage box when not in use.
[0042] like Figure 2 As shown, in one example, the cylindrical material lifting device 100 further includes a handle rubber sleeve 7, which is tightly fitted on the free end of the handle 6. The handle rubber sleeve 7 is conducive to the stability of the force applied by the operator to the handle 6. The material of the handle rubber sleeve 7 is preferably soft and has a large friction force.
[0043] like Figure 2 As shown, in one example, the cylindrical material lifting device 100 further includes a lifting ring 8, which is detachably threadedly connected to the top of the screw rod 1. The lifting ring 8 is used for lifting by a crane. In an alternative example, the lifting ring 8 is welded or integrally formed to the top of the screw rod 1.
[0044] The above detailed description is used to describe multiple exemplary embodiments, but this document is not intended to be limited to the explicitly disclosed combinations. Therefore, unless otherwise stated, the various features disclosed herein can be combined together to form multiple additional combinations that are not shown for the sake of simplicity.
Claims
1. A cylindrical material lifting device, characterized in that: The cylindrical material lifting device (100) comprises a screw rod (1), a sleeve nut assembly (2), a screw sleeve (3), and a plurality of telescopic assemblies (4); The top end of the screw rod (1) is used to be lifted; The sleeve nut assembly (2) comprises a sleeve (21) and two limiting nuts (22); the sleeve (21) is sleeved on the corresponding polished rod position of the screw (1) with clearance fit; the sleeve (21) is configured not to rotate along with the rotation of the screw (1); the two limiting nuts (22) are respectively located at the upper and lower ends of the sleeve (21) and are matched with the threads of the screw (1); the two limiting nuts (22) are used to limit the sleeve (21) at the corresponding polished rod position of the screw (1); and when friction exists between the two limiting nuts (22) and the sleeve (21), the friction force is not sufficient to drive the sleeve (21) to rotate; The screw sleeve (3) is axially spaced apart from the sleeve nut assembly (2) and is located on one side of the sleeve nut assembly (2) close to the top end of the screw rod (1), and the screw sleeve (3) is threadedly connected to the threaded portion of the screw rod (1); A plurality of telescopic assemblies (4) are arranged around the screw (1), each telescopic assembly (4) comprising a support shoe (41), a first lining plate (42) and a second lining plate (43), one end of the first lining plate (42) being pivotally connected to the support shoe (41), the other end of the first lining plate (42) being pivotally connected to the sleeve (21) of the sleeve nut assembly (2), the second lining plate (43) being located above the first lining plate (42), one end of the second lining plate (43) being pivotally connected to the support shoe (41), the other end of the second lining plate (43) being pivotally connected to the screw sleeve (3), the support shoe (41) being used to contact and tighten the inner wall of the cylindrical material; The screw sleeve (3) is configured such that when the screw rod (1) rotates, the screw sleeve (3) moves linearly downward so that the multiple telescopic components (4) are radially expanded and the inner wall of the cylindrical material is tightened through the support shoe (41), and moves linearly upward so that the multiple telescopic components (4) are radially contracted and the support shoe (41) is released to tighten the inner wall of the cylindrical material.
2. The cylindrical material lifting device according to claim 1, characterized in that: There are at least two sleeve nut assemblies (2) and the at least two sleeve nut assemblies (2) are axially spaced apart on the screw rod (1), and the number of first liner plates (42) in each telescopic assembly (4) is consistent with the number of sleeve nut assemblies (2).
3. The cylindrical material lifting device according to claim 1, characterized in that: The support shoe (41) has a groove (411), and one end of the first lining plate (42) and one end of the second lining plate (43) are received and pivotally connected in the groove (411); The set (21) and the screw sleeve (3) are both provided with a plurality of pairs of mounting plates (P) surrounding the screw rod (1). The other end of the first lining plate (42) and the other end of the second lining plate (43) are each received and pivotally connected between a corresponding pair of mounting plates (P).
4. The cylindrical material lifting device according to claim 3, characterized in that: One end of the first lining plate (42) and one end of the second lining plate (43) are both pivotally connected in the groove (411) through a bolt (B) passing through the support shoe (41) and two fixing nuts (N) located on opposite sides of the bolt (B); The other end of the first lining plate (42) and the other end of the second lining plate (43) are pivotally connected between the corresponding pair of mounting plates (P) through bolts (B) passing through the corresponding pair of mounting plates (P) and two fixing nuts (N) located on opposite sides of the bolts (B); An elastic washer (G1) and a flat washer (G2) are provided between the support shoe (41) and the corresponding fixing nuts (N). An elastic washer (G1) and a flat washer (G2) are provided between the mounting plate (P) and the corresponding fixing nuts (N).
5. The cylindrical material lifting device according to claim 1, characterized in that: The multiple telescopic components (4) are arranged at equal intervals around the screw rod (1).
6. The cylindrical material lifting device according to claim 1, characterized in that: The cylindrical material lifting device (100) further comprises a handle bushing (5) and a handle (6); The handle bushing (5) is located on a side of the screw sleeve (3) facing away from the lower sleeve (21), and the handle bushing (5) is fixed to the screw rod (1); The handle (6) is connected to the handle bushing (5), and the handle (6) is used for an operator to apply force to drive the screw (1) to rotate.
7. The cylindrical material lifting device according to claim 6, characterized in that: There are a plurality of handles (6), and the plurality of handles (6) are arranged at equal intervals around the screw rod (1).
8. The cylindrical material lifting device according to claim 6, characterized in that: The handle (6) is detachably threadedly connected to the handle bushing (5).
9. The cylindrical material lifting device according to claim 6, characterized in that: The cylindrical material lifting device (100) further comprises a handle rubber sleeve (7). The handle rubber sleeve (7) is tightly fitted on the free end of the handle (6).
10. The cylindrical material lifting device according to claim 1, characterized in that: The cylindrical material lifting device (100) further comprises a lifting ring (8), The lifting ring (8) is detachably threadedly connected to the top end of the screw rod (1).