CN219792324U

CN219792324U - Rear rolling type multi-section arm structure of front sliding block of heavy load multi-channel ruffle

Info

Publication number: CN219792324U
Application number: CN202321279215.2U
Authority: CN
Inventors: 陈银波; 李军
Original assignee: Guangzhou Foszhe Intelligent Technology Co ltd
Current assignee: Guangzhou Foszhe Intelligent Technology Co ltd
Priority date: 2023-05-25
Filing date: 2023-05-25
Publication date: 2023-10-03
Anticipated expiration: 2033-05-25

Abstract

The utility model relates to the technical field of multisection arms, in particular to a rear rolling multisection arm structure of a front sliding block of a heavy-load multi-pass ruffled edge. The sliding wear-resistant piece made of engineering plastics is adopted to replace the original hard contact mode of the sleeve and the sleeve, so that the installation is simpler; according to the utility model, the roller bearing is arranged at the upper end of the multi-section arm, and the original sliding block contact mode is replaced by rolling, so that the multi-section arm can run more smoothly and stably, and the service life of the multi-section arm and the consumable replacement frequency are also improved.

Description

Rear rolling type multi-section arm structure of front sliding block of heavy load multi-channel ruffle

Technical Field

The utility model relates to the technical field of multisection arms, in particular to a rear rolling multisection arm structure of a front sliding block of a heavy-load multi-pass ruffle.

Background

The current multisection arm is the connection mode that generally adopts is section bar sleeve pipe connection, and inside drive is multistage lead screw transmission, rotates the nut through the lead screw, and the nut drives the sleeve pipe and is concertina movement, installs mechanical clamp or sucking disc at multisection arm end, and through cylinder drive clamp or vacuum pump sucking disc air formation negative pressure, utilizes the sucking disc to carry the object, and sheathed tube material generally selects the shaping side pipe, utilizes every level mode of overlapping to connect.

The existing multi-section arm material generally selects a section square tube, finish machining treatment is needed to be carried out on the surface finish and flatness of the section, the production cost is high, the general production process of the section arm section is a cold drawing process, a corresponding die is required to be developed for production to meet the production requirement or the design size requirement, the production cost is high in this way, the multi-section arm manufactured by the section cannot bear high loads when extending out of the working, the multi-section arm manufactured by the section is limited in application range due to insufficient wall thickness rigidity strength of the section, and the design and production stages of the section arm are relatively fixed due to the fact that the section arm is subjected to material selection, so that the production is difficult to be carried out beyond the size range of the section.

Disclosure of Invention

The present utility model is directed to a rear rolling multi-jointed arm structure of a front slider for a heavy load multi-hem, which solves at least one of the problems set forth in the prior art.

The technical scheme of the utility model is as follows:

a heavy load multi-pass ruffled front slider back-rolling multi-jointed arm structure comprising:

the inner column is internally provided with a first transmission screw rod, a second transmission screw rod and a third transmission screw rod which are sequentially connected in a transmission way from top to bottom, the first transmission screw rod is sleeved with a first screw rod nut, the second transmission screw rod is sleeved with a second screw rod nut, and the third transmission screw rod is sleeved with a third screw rod nut;

the section arm, the section arm is provided with tertiary section arm, second grade section arm and one-level section arm at least, tertiary section arm cover is established on the inner column, tertiary section arm's upper end with third screw-nut fixed connection, second grade section arm cover is established on the tertiary section arm, second grade section arm's upper end with second screw-nut fixed connection, one-level section arm cover is established on the second grade section arm, one-level section arm's upper end with first screw-nut fixed connection, the side of second grade section arm and tertiary section arm upper end all is provided with a plurality of roller.

Further, the lower end parts of the primary section arm, the secondary section arm and the tertiary section arm are respectively provided with a sliding wear-resistant piece.

Further, an oil buffer is arranged on the sliding wear pad of the primary section arm, and a buffer sheet is arranged on the sliding wear pad of the secondary section arm.

Further, the upper surface of the sliding wear-resistant piece is also provided with a limiting block.

Further, the primary section arm, the secondary section arm and the tertiary section arm comprise upright posts and fixing plates, and the fixing plates are fixedly connected with the first screw nut, the second screw nut or the third screw nut.

Further, the cross section of the upright post is provided with a plurality of bends.

Further, a connecting plate is arranged on the lower surface of the inner column.

Further, the upper end of the first transmission screw rod is provided with a spline.

The utility model provides a heavy load multi-ruffle front slider rear rolling multi-section arm structure through improvement, which has at least one of the following improvements and advantages compared with the prior art:

1. according to the utility model, the sliding wear-resistant piece made of engineering plastics is adopted to replace the original hard contact mode of the sleeve and the sleeve, so that the installation is simpler; the sliding wear-resistant piece of engineering plastic is in contact with the inner wall of the metal sleeve, so that the friction force is small; the plastic sliding wear-resistant piece has microscopic capillary holes, and the capillary holes can store lubricating oil, so that the multi-section arm is lighter in weight during action, and therefore, the heat generated by metal friction is smaller; moreover, no metal scraps are generated, so that the operating environment of the mechanism is cleaner; the sliding wear-resistant sheet made of engineering plastics has low cost, simple production process, convenient daily replacement and maintenance and the like.

2. According to the utility model, the roller bearing is arranged at the upper end of the multi-section arm, and the original sliding block contact mode is replaced by rolling, so that the multi-section arm can run more smoothly and stably, and the service life of the multi-section arm and the consumable replacement frequency are also improved.

3. The multi-section arm upright post material is formed by bending and welding plates, a plurality of bending steps are added to the cross section of the working section arm, the rigidity strength of the section arm is increased through the bending steps, and the high-strength steel plate is adopted to replace the original thicker and heavier material, so that the weight of the whole equipment is reduced, and the production and manufacturing cost is saved.

4. The sheet metal process of the utility model cuts the sheet material by using laser, and the bending process can easily meet the design size requirement, so that the design or the telescopic length of the multi-section arm is greatly improved, the volume of the multi-section arm can be manufactured according to the design requirement, and the volume of the main body can be reduced.

Drawings

The utility model is further explained below with reference to the drawings and examples:

FIG. 1 is a schematic view of a multi-jointed arm according to the present utility model;

FIG. 2 is a schematic view of a portion of the structure of the multi-jointed arm according to the present utility model;

FIG. 3 is a schematic view of a portion of the structure of the multi-jointed arm according to the present utility model;

fig. 4 is a schematic view of a part of the structure of the multi-section arm according to the present utility model.

Reference numerals illustrate:

1. an inner column; 2. three-stage arm-saving; 3. a secondary arm; 4. a first-stage arm; 11. a first transmission screw;

12. a second transmission screw rod; 13. a third transmission screw rod; 14. a first lead screw nut; 15. a second lead screw nut; 16. a third lead screw nut; 21. a roller; 41. sliding wear plates; 411. a hydraulic buffer; 31. a buffer sheet; 412. a limiting block; 22. a column; 23. a fixing plate; 221. bending for a plurality of times; 17. a connecting plate; 111. and (3) a spline.

Detailed Description

The following detailed description of the utility model clearly and completely describes the technical solution in the embodiments of the utility model.

In the description of the present utility model, it should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "top," "bottom," "inner," "outer," and the like indicate or are based on the orientation or positional relationship shown in the drawings, merely to facilitate description of the present utility model and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

It should also be understood that the term "and/or" as used in the present specification and the appended claims refers to any and all possible combinations of one or more of the associated listed items, and includes such combinations. The terms "comprising," "including," "having," and variations thereof mean "including but not limited to," unless expressly specified otherwise.

Furthermore, the terms "first," "second," "third," and the like in the description of the present specification and in the appended claims, are used for distinguishing between descriptions and not necessarily for indicating or implying a relative importance.

The utility model provides a heavy load multi-ruffle front slider back rolling type multi-section arm structure through improvement, and the technical scheme of the utility model is as follows:

as shown in figure 1, the rear rolling type multi-section arm structure of the front slider of the heavy load multi-channel ruffle comprises an inner column 1 and a section arm, wherein the section arm is at least provided with a tertiary section arm 2, a secondary section arm 3 and a primary section arm 4. The inner column 1, the tertiary section arm 2, the secondary section arm 3 and the primary section arm 4 are connected in a telescopic manner.

As shown in fig. 2, a first transmission screw 11, a second transmission screw 12 and a third transmission screw 13 which are sequentially connected in a transmission manner from top to bottom are arranged in the inner column 1, the first transmission screw 11 is sleeved with a first screw nut 14, the second transmission screw 12 is sleeved with a second screw nut 15, and the third transmission screw 13 is sleeved with a third screw nut 16. The first transmission screw 11, the second transmission screw 12 and the third transmission screw 13 are used for driving the first screw nut 14, the second screw nut 15 and the third screw nut 16 to move up and down.

As shown in fig. 2, the tertiary joint arm 2 is sleeved on the inner column 1, and the upper end of the tertiary joint arm 2 is fixedly connected with the third screw nut 16; the secondary knuckle arm 3 is sleeved on the tertiary knuckle arm 2, and the upper end of the secondary knuckle arm 3 is fixedly connected with the second screw nut 15; the primary segment arm 4 is sleeved on the secondary segment arm 3, and the upper end of the primary segment arm 4 is fixedly connected with the first screw nut 14. The first screw nut 14, the second screw nut 15 and the third screw nut 16 drive the primary section arm 4, the secondary section arm 3 and the tertiary section arm 2 to move up and down, so that the expansion and contraction of the multi-section arms are realized.

As shown in fig. 2, the side surfaces of the upper end parts of the secondary section arm 3 and the tertiary section arm 2 are respectively provided with a plurality of rollers 21, and the rolling is utilized to replace the original sliding block contact mode, so that the operation of the multi-section arm is smoother and more stable, and the service life of the multi-section arm and the consumable replacement frequency are also improved.

As shown in fig. 3, the lower end parts of the primary segment arm 4, the secondary segment arm 3 and the tertiary segment arm 2 are all provided with a sliding wear-resisting piece 41, the sliding wear-resisting piece 41 is made of engineering plastics, the sliding wear-resisting piece 41 made of engineering plastics replaces the original hard contact mode of the sleeve and the sleeve, the installation is simpler, the sliding wear-resisting piece 41 made of engineering plastics contacts with the inner wall of the metal sleeve, the friction force is small, capillary holes are formed in the microscopic surface of the sliding wear-resisting piece 41, lubricating oil can be stored in the capillary holes, so that the multi-segment arm is lighter in action, the heat generated by metal friction is smaller, no metal chips are generated, the operating environment of the mechanism is cleaner, and the sliding wear-resisting piece 41 made of engineering plastics has the advantages of low cost, simple production process, convenience in daily replacement and maintenance and the like.

The sliding wear pad 41 is installed with the knuckle arm through threaded connection, the installation of the sliding wear pad 41 can be completed without disassembling any other parts, maintenance of the knuckle arm becomes more efficient and simple, gaps of the knuckle arm can be realized through adjusting the sliding wear pad, and the precision of the structure is guaranteed.

As shown in fig. 3, the sliding wear-resisting piece 41 of the primary arm 4 is provided with a hydraulic buffer 411, the sliding wear-resisting piece 41 of the secondary arm 3 is provided with a buffer piece 31, the buffer piece 31 is matched with the hydraulic buffer 411, and the hydraulic buffer 411 effectively keeps balance of the arm in movement, so that the arm is kept balanced and effectively stopped in movement, the mechanical operation is safer, and accidents are avoided. The upper surface of the sliding wear pad 41 is further provided with a limiting block 412, and the limiting block 412 is used for limiting and buffering the positions between the joint arms when the joint arms shrink.

As shown in fig. 4, the primary segment arm 4, the secondary segment arm 3 and the tertiary segment arm 2 each include a stand column 22 and a fixing plate 23, the fixing plates 23 are fixedly connected with the first screw-nut 14, the second screw-nut 15 or the third screw-nut 16, and the practical fixing plates 23 are fixedly connected with the first screw-nut 14, the second screw-nut 15 or the third screw-nut 16 so as to make the connection more stable, the screw-nuts are more horizontal, the assembly is easier, and the connection is not easy to deviate or incline. The cross section of the upright 22 is provided with a plurality of bends 221. The upright post 22 is formed by bending and welding plates, the plurality of bending steps of the sheet metal process actually increase the function of the reinforcing ribs for the upright post 22 with multiple sections of arms, and steel materials with different brands can be selected for production and manufacture according to actual production requirements, so that the sheet metal upright post has wider selection range compared with the condition that the square tube material is single.

As shown in fig. 3, the lower surface of the inner column 1 is provided with a connection plate 17. As shown in fig. 2, the upper end of the first transmission screw 11 is provided with a spline 111, the spline 111 is used for being connected with an external power device, and the connecting plate 17 is used for being connected with different structures according to requirements. In some embodiments, the power device is a motor, the motor is connected with the spline 111, the motor drives a transmission screw on the top to rotate, the transmission screw drives a peer screw nut and a joint arm to do up-and-down motion, the screw is in threaded connection with a next stage of joint arm 4 through the screw nut, the previous stage of transmission screw is in a sleeved state with the next stage of transmission screw, when the motor drives the previous stage of transmission screw to rotate, the next stage of transmission screw transmits a rotation moment in a mode of being connected through the internal spline 111 and simultaneously drives the screw nut of each layer to move, so that each layer of joint arm does up-and-down motion under the driving of the screw, the extension and retraction of the joint arm are realized by means of the positive and negative rotation of the motor, and the screw transmits the rotation moment of the motor and simultaneously drives the joint arm to do telescopic motion.

The present utility model is not limited to the above-mentioned embodiments, and any changes or substitutions that can be easily understood by those skilled in the art within the technical scope of the present utility model are intended to be included in the scope of the present utility model.

Claims

1. A heavy load multi-pass ruffled front slider back-rolling multi-jointed arm structure comprising:

2. The multi-fold front slider back-rolling multi-arm structure of claim 1, wherein the lower ends of the primary arm, the secondary arm and the tertiary arm are provided with sliding wear pads.

3. The multi-fold front slider rear rolling multi-arm structure of claim 2, wherein the sliding wear pad of the primary arm is provided with a hydraulic buffer, and the sliding wear pad of the secondary arm is provided with a buffer sheet.

4. A heavy duty multi-ruffled front slider back-rolling multi-jointed arm structure as in claim 3 wherein said sliding wear pad upper surface is further provided with a stopper.

5. The heavy load multi-pass hem front slider back rolling multi-section arm structure of any of claims 1-4, wherein the primary, secondary and tertiary section arms each comprise an upright and a fixed plate fixedly connected to the first, second or third lead screw nuts.

6. The heavy duty multi-ruffled front slider rear rolling multi-jointed arm structure of claim 5 wherein said post cross-section has a plurality of bends.

7. The heavy duty multi-ruffled front slider back-rolling multi-jointed arm structure of claim 6 wherein said inner post lower surface is provided with a web.

8. The heavy duty multi-ruffled front slider rear roll multi-jointed arm structure of claim 7 wherein said first drive screw upper end is provided with splines.