A mounting device for a washing machine tripod shaft protective sleeve

By designing an automated protective sleeve installation device, the problem of time-consuming and labor-intensive manual installation of the protective sleeve for the washing machine tripod shaft was solved, realizing automated installation and improving production efficiency.

CN224359684UActive Publication Date: 2026-06-16JIANGYIN ZERUI MASCH CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
JIANGYIN ZERUI MASCH CO LTD
Filing Date
2025-06-25
Publication Date
2026-06-16

AI Technical Summary

Technical Problem

The installation process of the existing washing machine tripod shaft protective sleeve is time-consuming and labor-intensive, making it difficult to automate and affecting production efficiency.

Method used

An installation device comprising a worktable, a screw, a nut block, a connecting rod, an inner clamping rod, and an outer clamping rod was designed. The device achieves automatic installation of the protective sleeve through motor drive and cylinder control.

🎯Benefits of technology

It enables automatic application of protective sleeves for tripod shafts, saving time and effort, improving installation efficiency, and adapting to automated tripod production.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN224359684U_ABST
    Figure CN224359684U_ABST
Patent Text Reader

Abstract

The utility model relates to a kind of installation device of washing machine tripod shaft protective sleeve, including workbench, the vertical screw rod is equipped in the center of workbench, screw rod is rotated by motor drive, the top of screw rod is equipped with placing table, the placing table is used to place workpiece, nut block is sleeved on screw rod, the nut block articulates 3 connecting rods, the other end of each connecting rod articulates clamping inner rod, the clamping inner rod and clamping outer rod sliding connection, the clamping outer rod corresponding to the leg of workpiece is equipped with clamping block, the center of placing table is equipped with positioning table, the center of positioning table is equipped with positioning hole, preset protective sleeve is in the positioning hole, protective sleeve opening faces upwards, the installation shaft of workpiece is inserted into the positioning table of preset protective sleeve, the positioning table is equipped with down pressure cylinder directly above it. The utility model can realize the automatic sleeve of tripod shaft protective sleeve, save time and effort, release labor, greatly improve the installation efficiency of protective sleeve, adapt to tripod automation production.
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Description

Technical Field

[0001] This utility model relates to the field of washing machine tripod technology, specifically to an installation device for a protective sleeve for the shaft of a washing machine tripod. Background Technology

[0002] Front-loading washing machines are widely used in the washing machine industry. To ensure stable operation during washing and spin-drying, a tripod is used to fix the inner tub to the rotating shaft. During operation, the motor drives the tripod and inner tub to rotate at high speed, with the tripod providing fixation and support for the inner tub. As a key structural component of the front-loading washing machine, the tripod is integrally die-cast from a central mounting shaft and three legs. The mounting shaft connects to the motor shaft. To prevent damage or contamination of the mounting shaft during transportation, manufacturers typically install protective sleeves on it. Currently, these sleeves are mostly installed manually, which is time-consuming and labor-intensive, significantly reducing installation efficiency. Utility Model Content

[0003] The purpose of this utility model is to overcome the above-mentioned shortcomings and provide an installation device for a protective sleeve for a washing machine tripod shaft. This device can automatically install the protective sleeve, saving time and effort, freeing up labor, and greatly improving the installation efficiency of the protective sleeve. It is suitable for automated production of tripods.

[0004] The purpose of this utility model is achieved as follows:

[0005] An installation device for a protective sleeve for a washing machine tripod shaft includes a worktable. A screw is vertically positioned at the center of the worktable and is driven to rotate by a motor. A placement platform is provided on the top of the screw for placing a workpiece. A nut block is fitted onto the screw. The nut block is hinged to three connecting rods, and the other end of each connecting rod is hinged to a clamping inner rod. The clamping inner rod is slidably connected to a clamping outer rod. A clamping block is provided on the clamping outer rod corresponding to the support leg of the workpiece. A positioning platform is provided at the center of the placement platform, and a positioning hole is provided at the center of the positioning platform. A protective sleeve is preset inside the positioning hole, with the opening of the protective sleeve facing upwards. The installation shaft of the workpiece is inserted into the positioning platform of the preset protective sleeve. A pressing cylinder is provided directly above the positioning platform.

[0006] Preferably, the bottom of the inner clamping rod and the top of the outer clamping rod are slidably connected to a transverse guide rail, and the vertically arranged inner clamping rod and outer clamping rod move laterally synchronously.

[0007] Preferably, the positioning hole has a protective sleeve through groove extending radially outward, and the inlet of the protective sleeve through groove is connected to the protective sleeve feeding channel.

[0008] Preferably, the feeding channel includes a horizontal channel and an inclined channel. The horizontal channel is located on the extension line of the protective sleeve groove. The lower end of the inclined channel is connected to the horizontal channel. A pushing cylinder is provided at the end of the horizontal channel away from the positioning hole.

[0009] Preferably, the three legs of the placement platform corresponding to the workpiece in the circumferential direction are provided with support columns.

[0010] The beneficial effects of this utility model are:

[0011] The loading and unloading robot clamps the workpiece and inserts it into the positioning table. The motor drives the screw to rotate, and the nut block moves downward, pushing the connecting rod, inner clamping rod, outer clamping rod, and clamping block closer to the workpiece, thus clamping and fixing the three legs of the tripod. The pressing cylinder presses down to push the workpiece, outer clamping rod, and clamping block downward simultaneously. At this point, the protective sleeve is installed in place. The pushing cylinder and pressing cylinder reset, the screw rotates in the opposite direction, and the nut block moves upward, pushing the connecting rod, inner clamping rod, outer clamping rod, and clamping block away from the workpiece. The tripod is then removed from the worktable by the loading and unloading robot.

[0012] It can automatically install protective sleeves on tripod shafts, saving time and effort, freeing up labor, and greatly improving the installation efficiency of protective sleeves, making it suitable for automated tripod production. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the installation device for a protective sleeve for the shaft of a washing machine tripod according to the present invention.

[0014] Figure 2 for Figure 1 A magnified view of a portion of the image.

[0015] Figure 3 for Figure 1 Sectional view (workpiece not shown).

[0016] Figure 4 for Figure 3 A magnified view of a portion of the image.

[0017] in:

[0018] Workbench 1; Transverse guide rail 2; Inner clamping rod 3; Outer clamping rod 4; Screw 5; Nut block 6; Connecting rod 7; Placement platform 8; Positioning platform 8.1; Positioning hole 8.1.1; Protective sleeve through groove 8.1.2; Support column 8.2; Pressing cylinder 9; Motor 10; Workpiece 11; Clamping block 12; Protective sleeve 13; Feeding channel 14; Horizontal channel 14.1; Inclined channel 14.2; Pushing cylinder 15. Detailed Implementation

[0019] See Figure 1-4This utility model relates to an installation device for a protective sleeve for a washing machine tripod shaft, including a worktable 1, a horizontal guide rail 2, an inner clamping rod 3, an outer clamping rod 4, a screw 5, a nut block 6, a connecting rod 7, a placement platform 8, and a pressing cylinder 9. The worktable 1 has a vertically positioned screw 5 at its center, which is driven to rotate by a motor 10 fixed below the worktable 1. The top of the screw 5 has a placement platform 8 for placing workpieces. The nut block 6 is fitted onto the... On the screw 5, the nut block 6 is hinged to multiple connecting rods 7. The three connecting rods 7 are evenly distributed around the circumference of the nut block 6. The other end of each connecting rod 7 is hinged to the clamping inner rod 3. The clamping inner rod 3 is slidably connected to the clamping outer rod 4. The clamping outer rod 4 is provided with a clamping block 12 corresponding to the support leg of the workpiece 11. The bottom of the clamping inner rod 3 and the top of the clamping outer rod 4 are slidably connected to the transverse guide rail 2. The clamping inner rod 3 and the clamping outer rod 4, which are arranged vertically, move horizontally synchronously to achieve the clamping of the workpiece.

[0020] The placement platform 8 has a positioning platform 8.1 at its center, and the positioning platform 8.1 has a positioning hole 8.1.1 at its center. A protective sleeve 13 is placed in the positioning hole 8.1.1 with its opening facing upward. The mounting shaft of the workpiece 11 is inserted into the positioning platform 8.1 of the pre-set protective sleeve 13. A pressing cylinder 9 is located directly above the positioning platform 8.1.

[0021] The positioning hole 8.1.1 has a protective sleeve through groove 8.1.2 radially outward. The inlet of the protective sleeve through groove 8.1.2 is connected to the protective sleeve feeding channel 14. The feeding channel 14 includes a horizontal channel 14.1 and an inclined channel 14.2. The horizontal channel 14.1 is located on the extension line of the protective sleeve through groove 8.1.2. The lower end of the inclined channel 14.2 is connected to the horizontal channel 14.1. A pusher cylinder 15 is provided at the end of the horizontal channel 14.1 away from the positioning hole 8.1.1. The pusher cylinder 15 pushes the protective sleeve 13, which slides into the horizontal channel 14.1 under gravity, into the positioning hole 8 at the center of the positioning platform. 1.1 The loading / unloading robot clamps the workpiece 11 and inserts it into the positioning table 8.1. The motor 10 drives the screw 5 to rotate, and the nut block 6 moves downward, pushing the connecting rod 7, the inner clamping rod 3, the outer clamping rod 4, and the clamping block 12 closer to the workpiece 11, thus achieving clamping and fixing of the three legs of the tripod. The pressing cylinder 9 presses down and pushes the workpiece 11, the outer clamping rod 4, and the clamping block 12 downward simultaneously. At this point, the protective sleeve 13 is installed in place. The pushing cylinder 15 and the pressing cylinder 9 are reset, the screw 5 rotates in the opposite direction, and the nut block 6 moves upward, pushing the connecting rod 7, the inner clamping rod 3, the outer clamping rod 4, and the clamping block 12 away from the workpiece 11. The tripod is then moved off the worktable by the loading / unloading robot.

[0022] To prevent the workpiece from being initially unstable, the three legs of the placement platform 8 corresponding to the workpiece are provided with support columns 8.2.

[0023] In addition to the above embodiments, this utility model also includes other implementation methods. All technical solutions formed by equivalent transformation or equivalent substitution should fall within the protection scope of the claims of this utility model.

Claims

1. A mounting device for a protective sleeve on the shaft of a washing machine tripod, characterized in that: The device includes a worktable with a vertically positioned screw at its center, driven by a motor. A placement platform is located on top of the screw for placing workpieces. A nut block is fitted onto the screw, and the nut block is hinged to three connecting rods. The other end of each connecting rod is hinged to an inner clamping rod, which is slidably connected to an outer clamping rod. A clamping block is provided on the outer clamping rod corresponding to the workpiece's support leg. A positioning platform is located at the center of the placement platform, with a positioning hole at its center. A protective sleeve is pre-set inside the positioning hole, with its opening facing upwards. The workpiece's mounting shaft is inserted into the positioning platform within the pre-set protective sleeve. A downward pressure cylinder is located directly above the positioning platform.

2. The mounting device for a protective sleeve for a washing machine tripod shaft according to claim 1, characterized in that: The bottom of the inner clamping rod and the top of the outer clamping rod are slidably connected to the transverse guide rails, and the vertically arranged inner clamping rod and outer clamping rod move laterally synchronously.

3. The mounting device for a protective sleeve for a washing machine tripod shaft according to claim 1, characterized in that: The positioning hole has a protective sleeve through groove extending radially outward, and the inlet of the protective sleeve through groove is connected to the protective sleeve feeding channel.

4. The mounting device for a protective sleeve for a washing machine tripod shaft according to claim 3, characterized in that: The feeding channel includes a horizontal channel and an inclined channel. The horizontal channel is located on the extension line of the protective sleeve through groove. The lower end of the inclined channel is connected to the horizontal channel. A pusher cylinder is provided at the end of the horizontal channel away from the positioning hole.

5. The mounting device for a protective sleeve for a washing machine tripod shaft according to claim 1, characterized in that: The three legs of the placement platform corresponding to the workpiece in the circumference are equipped with support columns.