WO2021248632A1

WO2021248632A1 - Machine frame structure of smart chain hoist

Info

Publication number: WO2021248632A1
Application number: PCT/CN2020/102718
Authority: WO
Inventors: 洪军; 王智军; 何本益
Original assignee: 温岭市明华齿轮有限公司
Priority date: 2020-06-10
Filing date: 2020-07-17
Publication date: 2021-12-16
Also published as: CN111573549B; CN111573549A

Abstract

A machine frame structure of a smart chain hoist, related to the technical field of electric chain hoists. The structure solves the technical problem of expensiveness of machine frame structures of existing smart chain hoists. The smart chain hoist comprises a servo motor (1) and a roller (2). A steel cable (3) is reeled on the roller (2). The machine frame structure comprises a left wall panel (4) and a right wall panel (5) parallel provided at an interval. Several connecting columns (6) are provided between the left wall panel (4) and the right wall panel (5). The connecting columns (6) are fixedly connected on one end to positions in proximity to the edges on the left wall panel (4) by bolts (7); the connecting columns (6) are fixedly connected on the other end to positions in proximity to the edges on the right wall panel (5) by bolts (7). The roller (2) is rollably provided between the left wall panel (4) and the right wall panel (5), and, the roller (2) is connected on either side respectively to the middle position of the left wall panel (4) and that of the right wall panel (5). The servo motor (1) is fixedly connected on the outside surface of the right wall panel (5), and, an output shaft of the servo motor (1) runs through the right wall panel (5) and extends to between the left wall panel (4) and the right wall panel (5). The output shaft of the servo motor (1) is connected to the roller (2) and is capable of driving same to rotate. The machine frame structure is structurally simple and reliable and is inexpensive.

Description

Frame structure of a smart gourd

Technical field

The invention belongs to the technical field of intelligent auxiliary lifting devices, and relates to a frame structure of an intelligent hoist.

Background technique

Smart hoists are widely used in automotive assembly lines, precise assembly of industrial equipment, precision machine tool loading and unloading in machining workshops, and material handling. The smart hoist can realize precise alignment assembly, fast and accurate movement and handling, intelligent induction of operator actions, overload protection, power failure protection, anti-rebound technology and so on. At present, the smart hoist is mainly composed of servo motor, precision planetary reducer, servo motor driver, main control module, control handle, drum and frame, steel wire rope, hook and other components. The servo motor drives the precision planetary reducer to drive the drum and steel wire rope. To lift heavy objects. The connection between the drum and the reducer in the existing smart hoist is relatively complicated, resulting in a relatively large drum diameter and a correspondingly larger frame structure. Moreover, at present, the frame structure of smart hoist at home and abroad usually adopts integral aluminum alloy casting, and the structure design is more complicated and the cost is higher.

Chinese Patent (Announcement Number: CN205043776U; Announcement Date: 2016-02-24) discloses a main structure of a mechanical assist arm, including a motor, a chassis, a load cell and a wire rope. The chassis is equipped with a reducer, a reducer cover and Winding reel, the wire rope is wound on the reel, the case is an integral box structure, the reducer is fixedly connected with the output end of the motor, the reducer is covered with a reducer sleeve, and the reducer sleeve is fixed with a winding wire through the bearing sleeve Reel; the two ends of the winding reel are respectively tightened by a small bearing flange and a top tightening plate, the small bearing flange is sleeved with the output shaft of the reducer, and the top tightening plate is sleeved with the reducer body; the two sides of the chassis are respectively There is a large bearing flange for fixing the small bearing flange and the reducer. The large bearing flange on the left is covered on the small bearing flange through the bearing jacket, and the large bearing flange on the right is attached to the reducer through the bearing jacket. Body.

In the above patent documents, the chassis is used as the main supporting structure, and its assembly is not convenient enough.

Summary of the invention

According to the above-mentioned problems in the prior art, the present invention provides a rack structure for a smart gourd. The technical problem to be solved by the present invention is: how to provide a rack structure with a simple structure, convenient assembly, and stable and reliable rack structure to install smart gourd.

The purpose of the present invention can be achieved through the following technical solutions:

A rack structure of a smart hoist, the smart hoist includes a servo motor and a drum, and a steel wire rope is wound on the drum. A number of connecting columns are provided between the wall panel and the right wall panel, one end of the connecting column is fixedly connected to the left wall panel near the edge by bolts, and the other end of the connecting column is fixedly connected to the left wall panel by bolts. The right wall panel is close to the edge; the roller is rotatably arranged between the left wall panel and the right wall panel, and the two ends of the roller are respectively connected to the middle positions of the left wall panel and the right wall panel, The servo motor is fixedly connected to the outer surface of the right wall panel, and the output shaft of the servo motor penetrates the right wall panel and extends between the left wall panel and the right wall panel; the servo motor The output shaft is connected with the drum and can drive it to rotate.

Its working principle is as follows: In this technical scheme, a frame structure is designed to install the smart hoist, and the reducer, servo motor and main control module are all installed on the frame type rack. The overall structure design is relatively simple, and the left wall The board and the right wall panel are connected by multiple connecting posts. The connecting posts are bolted to the left and right wall panels by bolts, which are convenient for installation and disassembly. The connecting posts are located on the four peripheral edges, which not only play a role in connecting and fixing, but also can align the middle part. The roller in the center plays a protective role; the roller in the middle also plays a role in connecting and positioning. The frame is simple and compact in structure, easy to manufacture, compact in size, and lighter in weight, making the entire smart hoist lower in cost; the entire smart hoist is easy to assemble, stable and reliable.

In the above-mentioned smart gourd rack structure, a bottom plate is also fixed between the bottoms of the left wall panel and the right wall panel, the bottom plate is provided with a waist-shaped through hole, and the bottom of the bottom plate is fixedly provided with downward facing The upper and lower ends of the protective tube pass through, the upper end of the protective tube corresponds to the waist-shaped through hole, and the outer end of the steel wire rope on the drum passes through the waist-shaped through hole and the drum downwards extend. This guides and protects the wire rope.

In the above-mentioned smart gourd frame structure, the lower end of the protective tube is cylindrical, the upper end of the protective tube is flat, and the size and shape of the upper end port of the protective tube and the waist-shaped through hole Match; the upper end of the protective tube has a flange, and the flange is screwed to the bottom of the bottom plate by bolts.

In the above-mentioned rack structure of the smart gourd, the left wall panel and the right wall panel are both rectangular structures, the left wall panel and the right wall panel are equal in size and they are arranged opposite each other, and the two connecting columns The ends abut against the inner sides of the left wall panel and the right wall panel respectively, and the bolts are inserted into the inner side of the left wall panel and/or the right wall panel from the outer side surface thereof and bolted to the end of the connecting column Department.

In the above-mentioned smart gourd frame structure, the bottom plate is also a rectangular structure, both ends of the bottom plate are fixed to the bottom of the left wall panel and the right wall panel by bolts, and the waist-shaped through hole is close to the bottom of the left wall panel and the right wall panel. On one side of the bottom plate, the length of the waist-shaped through hole and the upper end port of the protective tube matches the length of the area on the drum where the steel wire rope can be wound.

In the above-mentioned smart gourd rack structure, the connecting columns are distributed on the upper and lower sides of the left wall panel and/or the right wall panel, wherein the upper side of the left wall panel and/or the right wall panel is at least side by side Three of the connecting columns are distributed at intervals, and at least two of the connecting columns are distributed on the lower side of the left wall panel and/or the right wall panel.

In the above-mentioned smart gourd frame structure, a left mounting hole is opened in the middle of the left wall panel, a bearing sleeve is fixed at the left mounting hole, and a left flange is fixed at one end of the drum, so The end of the left flange is rotatably connected with the bearing sleeve through a transition flange and a left bearing; a right mounting hole is opened in the middle of the right wall panel, and a right mounting hole is fixedly arranged at the right mounting hole of the right wall panel. A flange, a planetary reduction gear set is arranged in the drum, the output shaft of the servo motor passes through the right flange and is connected to the central sun gear shaft in the planetary reduction gear set, and the planetary reduction The planetary gears in the gear set mesh with the gears on the inner wall of the drum.

In the above-mentioned smart gourd frame structure, a cover is fixed on the outer side of the left wall panel and the right wall panel; the servo motor is located in the cover, and the cover is provided with heat dissipation holes. The cover prevents foreign matter from entering the drum.

Compared with the prior art, the frame of the present invention is simple and compact in structure, easy to manufacture, compact in size, and lighter in weight, making the entire smart hoist lower in cost; the entire smart hoist is easy to assemble, stable and reliable.

Description of the drawings

Figure 1 is a schematic diagram of the three-dimensional structure of the rack structure.

Figure 2 is a schematic diagram of the three-dimensional structure of the frame structure with the cover removed.

Figure 3 is a schematic diagram of the exploded structure of the frame structure with the cover removed.

Figure 4 is a schematic sectional view of the frame structure with the cover removed.

In the figure, 1. Servo motor; 2. Roller; 3. Steel wire rope; 4. Left wall plate; 4a, Left mounting hole; 5. Right wall plate; 5a, Right mounting hole; 6. Connecting column; 7. Bolt; 8. , Bottom plate; 8a, waist-shaped through hole; 9, protective tube; 9a, flanging; 10, bearing sleeve; 11, left flange; 12, left bearing; 13, right flange; 14, planetary reduction gear set 14a, central sun gear shaft; 14b, planetary gear; 15, cover; 15a, heat dissipation hole; 16, transition flange.

detailed description

The following are specific embodiments of the present invention combined with the accompanying drawings to further describe the technical solutions of the present invention, but the present invention is not limited to the following embodiments.

As shown in Figure 1 to Figure 4, the smart hoist includes a servo motor 1 and a drum 2. The drum 2 is wound with a steel wire rope 3. The frame structure includes a left wall panel 4 and a right wall panel 5 arranged in parallel and spaced apart, and a left wall panel 4 Several connecting columns 6 are provided between the right wall panel and the right wall panel 5. One end of the connecting column 6 is fixed to the left wall panel 4 near the edge by a bolt 7 and the other end of the connecting column 6 is fixed to the right wall by a bolt 7 The position on the board 5 near the edge; the roller 2 is rotated between the left wall panel 4 and the right wall panel 5, and the two ends of the roller 2 are respectively connected to the middle positions of the left wall panel 4 and the right wall panel 5, and the servo motor 1 is fixed Connected to the outer side of the right wall panel 5 and the output shaft of the servo motor 1 penetrates the right wall panel 5 and extends between the left wall panel 4 and the right wall panel 5; the output shaft of the servo motor 1 is connected to the drum 2 and It can drive it to rotate; the outer side of the left wall panel 4 and the right wall panel 5 is also fixed with a cover 15; the servo motor 1 is located in the cover 15 and the cover 15 is provided with a heat dissipation hole 15a. In this embodiment, a frame-type structure is designed to install the smart hoist. The reducer, servo motor 1, and main control module are all installed on the frame-type rack. The overall structure design is relatively simple. The wall panel 5 is connected by a plurality of connecting columns 6, and the connecting columns 6 are bolted to the left wall panel 4 and the right wall panel 5 by bolts 7, which is convenient for installation and disassembly. The connecting columns 6 are located along the four peripheral edges, which not only play a role in connection and fixation, It can also protect the roller 2 in the middle; the roller 2 in the middle also plays a role in connecting and positioning. The frame is simple and compact in structure, easy to manufacture, compact in size, and lighter in weight, making the entire smart hoist lower in cost; the entire smart hoist is easy to assemble, stable and reliable.

Further, as shown in Figure 1, Figure 2 and Figure 3, a bottom plate 8 is also fixed between the bottoms of the left wall panel 4 and the right wall panel 5, the bottom plate 8 is provided with a waist-shaped through hole 8a, and the bottom of the bottom plate 8 is fixed. A downward protection tube 9 is provided and the upper and lower ends of the protection tube 9 pass through. The upper end of the protection tube 9 corresponds to the waist-shaped through hole 8a. The outer end of the steel wire 3 on the drum 2 passes through the waist-shaped through hole 8a and the drum 2. Extend downward; the lower end of the protective tube 9 is cylindrical, the upper end of the protective tube 9 is flat, and the upper end port of the protective tube 9 matches the size and shape of the waist-shaped through hole 8a; the upper end of the protective tube 9 has a flange 9a, the flange 9a is screwed to the bottom of the bottom plate 8 by bolts 7; the left wall panel 4 and the right wall panel 5 are both rectangular structures, the left wall panel 4 and the right wall panel 5 are equal in size and they are arranged oppositely and connected The two ends of the column 6 abut against the inner side of the left wall 4 and the right wall 5 respectively, and the bolt 7 is inserted into the inner side of the left wall 4 and/or the right wall 5 from the outer side of the left wall 4 and/or the right wall 5 and bolted to the connecting column 6 The bottom plate 8 is also a rectangular structure, the two ends of the bottom plate 8 are fixed to the bottom of the left wall plate 4 and the right wall plate 5 by bolts 7, the waist-shaped through hole 8a is close to the side of the bottom plate 8, and the waist-shaped through hole The length of the upper end port of 8a and the protective tube 9 matches the length of the area on the drum 2 where the steel wire rope 3 can be wound; the connecting columns 6 are distributed on the upper and lower sides of the left wall panel 4 and/or the right wall panel 5, of which the left wall panel 4 and At least three connecting columns 6 are distributed side by side on the upper side of the right wall panel 5 and at least two connecting columns 6 are distributed on the lower side of the left wall panel 4 and/or the right wall panel 5.

As shown in Figures 3 and 4, the middle of the left wall plate 4 is provided with a left mounting hole 4a, a bearing sleeve 10 is fixed at the left mounting hole 4a, a left flange 11 is fixed at one end of the drum 2, and a left flange The end of the disk 11 is rotatably connected with the bearing sleeve 10 through the transition flange 16 and the left bearing 12; the right mounting hole 5a is opened in the middle of the right wall panel 5, and the right mounting hole 5a of the right wall panel 5 is fixedly provided with a right flange In the disk 13, a planetary reduction gear set 14 is arranged in the drum 2, and the output shaft of the servo motor 1 passes through the right flange plate 13 and is connected to the planetary reduction gear set 14.

Specifically, as shown in FIG. 4, the planetary reduction gear set 14 includes a central sun gear shaft 14a, one end of the central sun gear shaft 14a is connected to the output shaft of the servo motor 1 through a coupling, and the other end of the central sun gear shaft 14a One end is connected with the end of the left flange 11 through a bearing one, the inner wall of the drum 2 has gears, and the planetary gears 14b in the planetary reduction gear set 14 mesh with the gears on the inner wall of the drum 2.

Further, the outer space of the central sun gear shaft 14a is sleeved with a primary planetary gear carrier and a secondary planetary gear carrier, one end of the secondary planetary gear carrier is fixedly connected to the right flange 13, and the outer peripheral surface of the secondary planetary gear carrier is connected to the drum 2 The inner walls are rollingly connected by a right bearing, the inner wall of the secondary planetary gear carrier and the central sun gear shaft 14a are rotatably connected by bearing two, the primary planetary gear carrier is provided with three primary planetary gears, and the secondary planetary gear carrier is There are three two-stage planetary gears. The first-stage sun gear is fixed on the first-stage central sun gear shaft 14a. The first-stage sun gear meshes with the three-stage planetary gears on the first-stage planetary gear carrier. A two-stage sun gear shaft is fixed on one side, and a two-stage sun gear is fixed on the two-stage sun gear shaft. The two-stage sun gear meshes with three two-stage planetary gears on the two-stage planetary gear carrier, and the first-stage planetary gear And the secondary planetary gear meshes with the gear on the inner wall of the drum 2. The outer circumference of the drum 2 is provided with a spiral rope groove; the drum 2 is also covered with a pressure plate and a nylon plate, the inner side of the right flange 13 is fixedly connected with a transition sleeve, and one end of the pressure plate is fixedly connected with the transition sleeve. The inner middle part of the right flange 13 has a cylinder extending inward, an oil seal one is arranged between the transition sleeve and the outer peripheral surface of the cylinder, and an oil seal cover is also provided between the oil seal one and the transition sleeve. An oil seal 2 is provided between the inner wall of the secondary planetary gear carrier and the central sun gear shaft 14a, and the oil seal 2 is located outside the bearing 2.

The specific embodiments described herein are merely examples to illustrate the spirit of the present invention. Those skilled in the art to which the present invention pertains can make various modifications or additions to the specific embodiments described or use similar alternatives, but they will not deviate from the spirit of the present invention or exceed the definitions defined in the appended claims. Range.

Claims

A rack structure of a smart hoist. The smart hoist includes a servo motor (1) and a drum (2). A steel wire rope (3) is wound on the drum (2). The rack structure is characterized in that the rack structure includes parallel and spaced arrangements The left wall panel (4) and the right wall panel (5) are provided with a number of connecting columns (6) between the left wall panel (4) and the right wall panel (5). One end is fixedly connected to the left wall panel (4) by bolts (7) near the edge, and the other end of the connecting column (6) is fixedly connected to the right wall panel (5) by bolts (7) A position close to the edge; the roller (2) is rotatably arranged between the left wall panel (4) and the right wall panel (5), and both ends of the roller (2) are respectively connected to the left wall panel ( 4) and the middle position of the right wall plate (5), the servo motor (1) is fixedly connected to the outer side of the right wall plate (5) and the output shaft of the servo motor (1) passes through the The right wall panel (5) extends between the left wall panel (4) and the right wall panel (5); the output shaft of the servo motor (1) is connected to the roller (2) and can drive it Rotate.
The rack structure of the smart gourd according to claim 1, characterized in that, a bottom plate (8) is fixed between the bottom of the left wall panel (4) and the right wall panel (5), and the bottom plate ( 8) A waist-shaped through hole (8a) is opened on the upper part, the bottom of the bottom plate (8) is fixedly provided with a downward protective tube (9) and the upper and lower ends of the protective tube (9) pass through, the protective tube ( The upper end of 9) corresponds to the waist-shaped through hole (8a), and the outer end of the wire rope (3) on the drum (2) extends downward through the waist-shaped through hole (8a) and the drum (2) .
The frame structure of the smart gourd according to claim 2, characterized in that the lower end of the protective tube (9) is cylindrical, the upper end of the protective tube (9) is flat, and the protective tube (9) is flat. The upper end port of 9) matches the size and shape of the waist-shaped through hole (8a); the upper end of the protective tube (9) has a flange (9a), and the flange (9a) is passed through a bolt (7) Screw on the bottom of the bottom plate (8).
The rack structure of the smart gourd according to claim 2 or 3, characterized in that, the left wall panel (4) and the right wall panel (5) both have a rectangular structure, and the left wall panel (4) and the right wall panel (4) The wall panels (5) are equal in size and they are arranged opposite each other, and the two ends of the connecting column (6) respectively abut against the inner sides of the left wall panel (4) and the right wall panel (5), so The bolt (7) is inserted into the inner side of the left wall panel (4) and/or the right wall panel (5) from the outer side surface thereof and screwed to the end of the connecting column (6).
The rack structure of the smart gourd according to claim 4, characterized in that the bottom plate (8) is also a rectangular structure, and both ends of the bottom plate (8) are fixedly connected to the left wall by bolts (7) The bottom of the board (4) and the right wall board (5), the waist-shaped through hole (8a) is close to the side of the bottom plate (8), the waist-shaped through hole (8a) and the upper end of the protective tube (9) The length of the port matches the length of the area on the drum (2) where the steel wire rope (3) can be wound.
The rack structure of the smart gourd according to claim 1 or 2 or 3, characterized in that, the connecting columns (6) are distributed above and below the left wall panel (4) and/or the right wall panel (5) On both sides, the upper side of the left wall panel (4) and/or the right wall panel (5) is at least arranged side by side with three connecting columns (6) at intervals, and the left wall panel (4) and/or right At least two connecting columns (6) are distributed on the underside of the wall board (5).
The rack structure of the smart gourd according to claim 1 or 2 or 3, wherein a left mounting hole (4a) is opened in the middle of the left wall plate (4), and the left mounting hole (4a) is A bearing sleeve (10) is fixedly provided, one end of the roller (2) is fixedly provided with a left flange (11), and the end of the left flange (11) passes through the transition flange (16) and the left bearing (12) Rotatingly connected with the bearing sleeve (10); a right mounting hole (5a) is opened in the middle of the right wall panel (5), and the right mounting hole (5a) of the right wall panel (5) is fixed A right flange (13) is provided, a planetary reduction gear set (14) is provided in the drum (2), and the output shaft of the servo motor (1) passes through the right flange (13) and the The central sun gear shaft (14a) in the planetary reduction gear set (14) is connected, and the planet gears (14b) in the planetary reduction gear set (14) mesh with the gears on the inner wall of the drum (2).
The rack structure of the smart gourd according to claim 1 or 2 or 3, wherein the outer side of the left wall panel (4) and the right wall panel (5) are also fixedly provided with a cover (15); The servo motor (1) is located in the casing (15), and the casing (15) is provided with a heat dissipation hole (15a).