WO2019015210A1

WO2019015210A1 - Miniature crane

Info

Publication number: WO2019015210A1
Application number: PCT/CN2017/114087
Authority: WO
Inventors: 陈尚贵; 朱旭; 盛少琴
Original assignee: 广船国际有限公司
Priority date: 2017-07-19
Filing date: 2017-11-30
Publication date: 2019-01-24
Also published as: CN206952631U

Abstract

A miniature crane comprising a fixing pipe (1), a rotating shaft (2), and a lifting component (3). One extremity of the rotating shaft (2) is inserted into the fixing pipe (1) and rotatively connected to the fixing pipe (1). The lifting component (3) is provided on the rotating shaft (2) and rotates simultaneously with the rotating shaft (2). The extremity of the fixing pipe (1) away from the lifting component (3) is provided with a fixture (4). The fixture (4) comprises two clamping plates (42) provided at an interval. A fixing bolt (43) is provided on the clamping plates (42). The crane clamps on a sidewall of a processing machine via the fixture (4), is fastened via the fixing bolts (43), and lifts with the lifting component (3) a workpiece that needs to be lifted to a specified position. The miniature crane is structurally simple, convenient to install and remove, and easy to carry.

Description

Miniature crane

Technical field

The utility model relates to the field of lifting technology, in particular to a miniature lifting machine.

Background technique

Many machine tool manufacturers nowadays, in order to adapt to different weights of workpiece lifting, the crane is generally configured according to the maximum weight of the product.

However, often the manufacturing workshop has fewer workpieces and more light workpieces, especially in the machine tool assembly workshop. Only the racks need to be lifted by large cranes, and other parts are lifted by hand or small cranes. However, it is limited to the layout of the workshop. Generally, large cranes and small cranes are not installed, which often causes large cranes to be used for a few tens of kilograms, resulting in overuse and waste of resources. In particular, when multiple work stations are assembled at the same time, the lifting resources are insufficient, thereby reducing production efficiency.

Utility model content

The purpose of the utility model is to provide a miniature lifting machine which is convenient to install and disassemble and is convenient to carry.

To this end, the utility model adopts the following technical solutions:

A micro hoist is provided, including a fixed pipe, a rotating shaft and a lifting assembly, wherein one end of the rotating shaft is inserted into the fixed pipe and is rotatably connected with the fixed pipe, and the lifting component is disposed on the rotating shaft, which can be The rotating shaft rotates synchronously, and the fixing tube is disposed at a side away from the lifting assembly, and the clamp comprises two clamping plates arranged at intervals, and the clamping plate is provided with fixing bolts.

As a preferred technical solution of the micro hoist, the jig further includes a connecting plate and two The splint is disposed on a side of the connecting plate away from the fixed pipe, a side of the connecting plate facing away from the clamping plate is provided with a first flange, and a first bearing is disposed in the first flange, The first flange is coaxial with the fixed tube and fixedly connected to the fixed tube, and the rotating shaft is inserted into the inner hole of the first bearing.

As a preferred technical solution of the micro hoist, the rotating shaft includes a first connecting portion that is inserted into the inner hole of the first bearing, and is connected to the first connecting portion and the first flange The inner hole of the disc is inserted into the mating shaft main body, the diameter of the first connecting portion is smaller than the diameter of the rotating shaft body, and the rotating shaft main body is located above the first bearing.

As a preferred technical solution of the micro hoist, the fixing tube is fixedly disposed with a second flange away from one end of the first flange, and the rotating shaft body is disposed away from one end of the first connecting portion. a second connecting portion having a diameter smaller than a diameter of the rotating shaft body, the second flange ring being disposed at an outer circumference of the second connecting portion, and the second flange and the second flange A second bearing is disposed between the second connecting portions, and a second cover is disposed at an end of the second flange away from the fixed pipe, and the pressing cover has a mounting hole that cooperates with the second connecting portion.

As a preferred technical solution of the micro hoist, the second flange has a first stepped hole and a second stepped hole which are mutually penetrated and sequentially increased in diameter, and the second bearing is mounted on the first step In the hole, the second stepped hole cooperates with the outer circumference of the gland, the second flange is welded with the fixed pipe, and the gland and the second flange are connected by bolts.

As a preferred technical solution of the micro hoist, the gland protrudes from the second flange with an annular convex portion, and the annular convex portion is mated with the first stepped hole.

As a preferred technical solution of the micro hoisting machine, a fixing sleeve is fixedly disposed on one side of the fixing pipe and located on one side of the fixing pipe, and the hoisting component is connected to the outer side of the fixing sleeve.

As a preferred technical solution of the micro hoist, the hoisting assembly comprises a main beam and a diagonal support. The main beam is perpendicular to the rotating shaft, and one end of the main beam is fixedly connected with the fixing sleeve, and the other end is suspended. One end of the diagonal strut is connected with the sleeve of the top of the rotating shaft, and the other end is connected with the main beam. Connected in the middle of its length.

As a preferred technical solution of the micro hoist, the struts comprise two tie rods, and the two tie rods are connected by a connecting sleeve.

As a preferred technical solution of the micro hoist, the hoisting assembly further includes an electric hoist, and the main beam is provided with a track for moving the electric hoist along the length direction thereof, and the track is respectively disposed at two ends thereof A buffer.

The utility model has the beneficial effects that the micro crane can be clamped on the side wall of the processing machine tool by the clamp and locked by the fixing bolt, and then the workpiece to be lifted is suspended to the designated position by the lifting assembly. The miniature hoisting machine of the utility model is suitable for lifting small and medium-sized components of a machine tool manufacturing enterprise, solves the lifting problem of small workpieces, and achieves hoisting and meticulousness, is a "special" lifting device for small workpieces, reduces energy consumption, and improves products. Production efficiency. Compared with the prior art, the miniature hoisting machine of the utility model has the advantages of simple structure, convenient installation and disassembly, and convenient carrying.

DRAWINGS

FIG. 1 is a schematic structural view of a micro hoist according to an embodiment of the present invention.

Figure 2 is a cross-sectional view of Figure 1.

Figure 3 is an enlarged view of a portion I of Figure 2.

Figure 4 is an enlarged view of a portion II of Figure 2.

FIG. 5 is a schematic view showing the assembly of the second flange and the gland according to the embodiment of the present invention.

Figure 6 is a schematic view showing the assembly of the micro hoist and the bending machine frame according to the embodiment of the present invention.

Figure 7 is a view taken along the line A in Figure 5 .

Figure 8 is an enlarged view of a portion III of Figure 7.

In the picture:

1, fixed pipe; 2, rotating shaft; 21, bushing; 3, lifting component; 31, main beam; 32, diagonal bracing; 321, tie rod; 322, connecting sleeve; 33, fixed seat; 34, electric hoist; Buffer; 4, clamp; 41, connecting plate; 42, splint; 43, fixing bolt; 51, first flange; 52, first bearing; 61, second flange; 611, first step hole; 612, second step hole; 62, second bearing; 63, gland; 631, mounting hole; 632, annular convex portion; 7, fixed sleeve.

Detailed ways

The technical solutions of the present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

In the description of the present invention, it is to be understood that the orientation or positional relationship of the terms "inside", "outside" and the like is based on the orientation or positional relationship shown in the drawings, and is merely for convenience of description of the present invention and simplification. It is to be understood that the invention is not to be construed as a limitation

Moreover, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, features defining "first" and "second" may include one or more of the features either explicitly or implicitly.

In the description of the present invention, the term "fixed" is to be understood broadly, unless it is specifically defined and defined, for example, it may be a fixed connection, a detachable connection, or an integral; it may be a mechanical connection, It can be an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, which can be the internal connection of two components or the interaction of two components. The specific meanings of the above terms in the present invention can be understood by those skilled in the art in a specific case.

In the present invention, the first feature is "on" the second feature, unless otherwise explicitly stated and limited. Or "below" may include direct contact of the first and second features, and may also include that the first and second features are not in direct contact but are contacted by additional features therebetween. Moreover, the first feature "on" the second feature includes the first feature directly above and above the second feature, or merely indicating that the first feature is at a higher level than the second feature. The first feature "under" the second feature includes the first feature directly below and below the second feature, or merely indicating that the first feature level is less than the second feature.

As shown in FIG. 1 to FIG. 8 , an embodiment of the present invention provides a miniature hoisting machine including a fixed pipe 1 , a rotating shaft 2 and a lifting assembly 3 . One end of the rotating shaft 2 is inserted into the fixed pipe 1 and is rotatably connected with the fixed pipe 1 , and is hoisted. The assembly 3 is disposed on the rotating shaft 2, and can rotate synchronously with the rotating shaft 2. The fixing tube 1 is disposed away from the lifting assembly 3 at one end thereof with a clamp 4, and the clamp 4 includes two clamping plates 42 disposed at intervals, and the clamping plate 42 is provided with a fixing bolt 43. In this embodiment, the rotation shaft 2 is disposed such that the lifting assembly 3 is rotated 360° around the axis of the rotating shaft 2, and the lifting range is wide. The micro hoist can be clamped on the side wall of the machine tool by the clamp 4, and locked by the fixing bolts 43, and then the hoisting assembly 3 can be used to lift the small workpiece that needs to be lifted. The micro hoisting machine of the embodiment is suitable for lifting the small and medium-sized components of the machine tool manufacturing enterprise, solves the lifting problem of the small workpiece, and achieves the hoisting and meticulousness, is a "special" lifting device for the small workpiece, reduces the energy consumption, and improves the product. Production efficiency.

In this embodiment, the rotating shaft 2 is manually rotated by an operator.

Specifically, the clamp 4 further includes a connecting plate 41. The two clamping plates 42 are disposed on a side of the connecting plate 41 away from the fixed pipe 1. The first flange 34 is disposed on a side of the connecting plate 41 facing away from the clamping plate 42. The first flange A first bearing 52 is disposed in the disk 51. The first flange 51 is coaxial with the fixed pipe 1 and fixedly connected to the fixed pipe 1, and the rotating shaft 2 cooperates with the inner hole of the first bearing 52. By providing the first flange 51 between the fixed pipe 1 and the jig 4, the rotating shaft 2 can be stably installed in the fixed pipe 1 while making the rotation of the rotating shaft 2 smoother.

In this embodiment, the first flange 51 is fixedly connected to the clamp 4 by screws, and the fixed tube 1 and the first The flange 51 is welded and fixed.

As shown in FIG. 3, the rotating shaft 2 includes a first connecting portion that is inserted into the inner hole of the first bearing 52, and a rotating shaft body that is coupled to the first connecting portion and is mated with the inner hole of the first flange 51. The diameter of the first connecting portion is smaller than the diameter of the rotating shaft body, and the rotating shaft main body is located above the first bearing 52. The rotating shaft body is in contact with the first bearing 52. Therefore, the rotating shaft body has a limit function on the first bearing 52, and the first bearing 52 is prevented. Movement in the axial direction of the rotating shaft 2 affects the rotation of the rotating shaft 2.

As shown in FIG. 4, a second flange 61 is fixedly disposed at one end of the fixed pipe 1 away from the first flange 51. The second connecting portion is disposed at one end of the rotating shaft body away from the first connecting portion, and the diameter of the second connecting portion is The second flange 61 is disposed on the outer circumference of the second connecting portion, and the second flange 62 is disposed between the second flange 61 and the second connecting portion. The second flange 61 is away from the diameter of the rotating shaft body. One end of the fixed pipe 1 is provided with a gland 63 having a mounting hole 631 that cooperates with the second connecting portion. The second bearing 62 of the present embodiment has a fixing action on the rotating shaft 2, so that the rotating shaft 2 can be prevented from oscillating in the radial direction thereof, and the rotation of the rotating shaft 2 can be made smoother. The provision of the gland 63 prevents the second bearing 62 from moving in the axial direction of the rotary shaft 2.

As shown in FIG. 5, the second flange 61 has a first stepped hole 611 and a second stepped hole 612 which are mutually penetrated and sequentially increased in diameter, and the second bearing 62 is mounted in the first stepped hole 611, and the second stepped hole 612 is engaged with the outer circumference of the gland 63, the second flange 61 is welded to the fixed pipe 1, and the gland 63 is connected to the second flange 61 by bolts. The second stepped hole 612 has a limiting function for the gland 63 to facilitate the assembly of the gland 63 when the gland 63 is assembled. The gland 63 is connected to the second flange 61 by bolts to facilitate the installation and maintenance of the second bearing 62. .

As a preferred embodiment of the present invention, the gland 63 protrudes toward the second flange 61 with an annular convex portion 632 that is mated with the first stepped hole 611. The annular projection 632 can press the second bearing 62 into the second flange 61 to prevent the second bearing 62 from moving in the axial direction of the rotary shaft 2.

A fixing sleeve 7 is fixedly disposed on one side of the fixing pipe 1 on the second connecting portion, and the lifting component 3 is connected to the outside of the fixing sleeve 7. The fixing sleeve 7 is fixedly connected to the rotating shaft 2, so that the lifting assembly 3 can be rotated by the rotating shaft 2.

Specifically, the lifting component 3 includes a main beam 31 and a diagonal bracing 32. The main beam 31 is perpendicular to the rotating shaft 2, and one end of the main beam 31 is fixedly connected with the fixing sleeve 7, and the other end is suspended. The one end of the diagonal bracing 32 and the sleeve of the top of the rotating shaft 2 are sleeved. 21 is connected, and the other end is connected to the intermediate position of the main beam 31 along its longitudinal direction. The main beam 31 mainly plays a role of lifting the small workpiece, and the arrangement of the bracing 32 can increase the bearing strength of the main beam 31. One end of the main beam 31 is welded with a fixing seat 33. The fixing sleeve 7 has a plane parallel to the fixing base 33. The fixing seat 33 is fixedly connected with the plane through a plurality of bolts to facilitate the disassembly and maintenance of the main beam 31.

Wherein, the diagonal brace 32 includes two pull rods 321 , and the two pull rods 321 are telescopically connected by the connecting sleeve 322 , so that the diagonal brace is always in a tension state.

The lifting assembly 3 of the embodiment further includes an electric hoist 34. The main beam 31 is provided with a track on which the power supply hoist 34 moves along the longitudinal direction thereof, and a buffer 35 is disposed on the track adjacent to the end thereof to prevent the electric hoist 34 from sliding to The end of the main beam 31 strikes the fixed pipe 1 or slides off the main beam 31. The electric hoist 34 in this embodiment is connected to the controller, and the controller can control the movement of the electric hoist 34 along the track of the main beam 31, and can control the lifting and lowering of the hook of the electric hoist 34.

In the present embodiment, the workpiece is lifted by the electric hoist 34, and the workpiece is hoisted to a designated position by the rotation of the rotating shaft 2 for processing and assembly. In this embodiment, the limiter and the speed reducer can be added to the micro crane according to the working environment and actual needs.

In this embodiment, the assembly process of the micro hoist is as follows: the first bearing 52 is loaded into the first flange 51 according to the technical requirements of the construction drawing, and the first flange 51 is mounted on the clamp 4 and fixed by bolts. The first flange 51 is loaded with the fixed pipe 1, the rotating shaft 2 is inserted into the fixed pipe 1, and the first bearing 52 on the first flange 51 is assembled, and the fixed pipe 1 and the first method are welded by the construction drawing according to the construction drawing. Lan disk 51 is connected in one The second bearing 62 is loaded into the second flange 61 according to the technical requirements of the construction drawing, the second flange 61 is covered by the pressing cover 63, and the pressing cover 63 is fixed to the second flange 61 by screws. And fixing the second bearing 62 in the second flange 61, inserting the assembled second flange 61 into the rotating shaft 2 as required and connecting with the fixed pipe 1 by welding; fixing the sleeve 7 and the shaft The sleeves 21 are respectively assembled on the rotating shaft 2 according to the construction drawing, and are fixed by the set screws in order to prevent rotation, and the main beam 31 is fastened and fastened together with the fixing sleeve 322 through the fixing base 33 by screws, respectively, in the main beam 31 and the sleeve The tie rod 321 is assembled on the 21, and the two tie rods 321 are tightened and enlarged by the joint sleeve 322; two buffers 35 are welded to both ends of the main beam 31, and a small electric hoist 35 is installed between the buffers 35. Finally, the assembled micro hoist is mounted on the side plates of different machine tools according to requirements, and the two clamping plates 52 of the clamp are clamped on the side plates and locked by fixing bolts 43.

The miniature crane of the utility model has the following characteristics:

1, easy to carry: light weight, small and exquisite, compact structure;

2, easy to install and disassemble: easy to assemble, can be used according to the need to insert the power unit, the same disassembly;

3. The lifting speed is fast: the main lifting object is the internal workpiece of the machine such as the oil cylinder, and the small electric hoist can be fully competent, which can reduce the consumption and improve the efficiency;

4, a wide range of applications: due to the use of 220V unidirectional power supply, in addition to the application of bending machine, shearing machine and other machine tools, after modification is also applicable to decoration companies, lifting companies, moving companies, repair departments, warehouses And many other industries and households.

It should be noted that the foregoing specific embodiments are merely preferred embodiments of the present invention and the technical principles applied thereto, and any changes that are easily conceived by those skilled in the art are possible within the technical scope of the present disclosure. Replacement should be covered by the scope of the present invention.

The present invention has been described above by way of specific embodiments, but the present invention is not limited thereto. These specific embodiments. It will be apparent to those skilled in the art that various modifications, equivalents, changes, and the like may be made in the present invention. However, these modifications are intended to be within the scope of the present invention as long as they do not depart from the spirit of the invention. In addition, some terms used in the specification and claims of the present application are not limiting, but are merely for convenience of description.

Claims

A miniature hoisting machine, comprising: a fixed pipe, a rotating shaft and a lifting assembly, wherein one end of the rotating shaft is inserted into the fixed pipe and is rotatably connected with the fixed pipe, and the lifting component is disposed on the rotating shaft, Simultaneously rotating with the rotating shaft, one end of the fixing tube away from the lifting assembly is provided with a clamp, and the clamp comprises two clamping plates arranged at intervals, and the clamping plate is provided with fixing bolts.
A miniature hoist according to claim 1, wherein said jig further comprises a connecting plate, and said two said cleats are disposed on a side of said connecting plate away from said fixed pipe, said connecting plate facing away from said a first flange is disposed on one side of the splint, a first bearing is disposed in the first flange, and the first flange is coaxial with the fixed pipe and fixedly connected with the fixed pipe. The rotating shaft is inserted into the inner bore of the first bearing.
A miniature hoist according to claim 2, wherein said rotating shaft includes a first connecting portion that is inserted into an inner hole of said first bearing, and is coupled to said first connecting portion and said The inner hole of a flange is inserted into the mating shaft main body, the diameter of the first connecting portion is smaller than the diameter of the rotating shaft body, and the rotating shaft main body is located above the first bearing.
The micro hoist according to claim 3, wherein a second flange is fixedly disposed from an end of the fixing tube away from the first flange, and the rotating shaft body is away from the first connecting portion. One end is provided with a second connecting portion having a diameter smaller than a diameter of the rotating shaft body, the second flange ring is disposed at an outer circumference of the second connecting portion, and the second flange a second bearing is disposed between the disk and the second connecting portion, and a second cover is disposed at an end of the second flange away from the fixed pipe, and the pressing cover has a matching with the second connecting portion. Mounting holes.
The micro hoist according to claim 4, wherein the second flange has a first stepped hole and a second stepped hole which are mutually penetrated and sequentially increased in diameter, and the second bearing is mounted on the In the first stepped hole, the second stepped hole cooperates with the outer circumference of the gland, the second flange is welded with the fixed pipe, and the gland and the second flange pass the bolt connection.
The micro hoist according to claim 5, wherein the gland protrudes from the second flange with an annular convex portion, and the annular convex portion is mated with the first stepped hole.
The micro hoist according to claim 4, wherein a fixing sleeve is fixedly disposed on one side of the fixing pipe on the second connecting portion, and the hoisting assembly is connected to an outer side of the fixing sleeve.
The micro crane according to claim 7, wherein the lifting assembly comprises a main beam and a diagonal bracing, the main beam is perpendicular to the rotating shaft, and one end of the main beam is fixedly connected to the fixing sleeve. The other end is suspended, one end of the strut is connected with the sleeve of the top of the rotating shaft, and the other end is connected with the main beam at an intermediate position along the longitudinal direction thereof.
The micro hoist according to claim 8, wherein the struts comprise two tie rods, and the two tie rods are telescopically connected by a connecting sleeve.
The micro hoist according to claim 8, wherein the hoisting assembly further comprises an electric hoist, and the main beam is provided with a track for moving the electric hoist along the length thereof, and the track is located at both ends thereof. A buffer is provided separately.