CN214213412U

CN214213412U - Longitudinal and transverse heavy-load lifting device and wide sanding machine

Info

Publication number: CN214213412U
Application number: CN202023183312.0U
Authority: CN
Inventors: 刘艳丽; 沈文荣; 徐迎军
Original assignee: Suzhou Sufoma Machinery Co ltd
Current assignee: Suzhou Sufoma Machinery Co ltd
Priority date: 2020-12-25
Filing date: 2020-12-25
Publication date: 2021-09-17
Anticipated expiration: 2030-12-25

Abstract

The utility model relates to a indulge horizontal heavy load elevating gear and broad width grinder, indulge horizontal heavy load elevating gear include drive arrangement (1) and with transmission (2) that drive arrangement (1) is connected, drive arrangement (1) include worm (11) and worm wheel (12) with worm (11) engaged with, transmission (2) include direction urceolus (21), be located in direction urceolus (21) with direction urceolus swing joint direction inner tube (22), be located in the direction inner tube fixedly connected with nut (23), with nut matched with lead screw (24), lead screw (24) with worm wheel (12) coaxial coupling; the driving device (1) and the transmission device (2) are directly provided with a longitudinal anti-backlash anti-loosening gland (3). Compared with the traditional hydraulic cylinder lifting mechanism or the common mechanical lifting mechanism, the utility model can not float when the workpiece is sanded, thereby affecting the working precision; and can bear the impact force of longitudinal and transverse heavy loads.

Description

Longitudinal and transverse heavy-load lifting device and wide sanding machine

Technical Field

The utility model belongs to the field of machinery, a indulge horizontal heavy load elevating gear and broad width grinder is related to.

Background

The wide sander is composed of two parts of an upper frame and a lower frame, and parts such as a sand frame, a feeding roller, a tensioning roller, an air path system and the like are arranged in the upper frame and the lower frame. Therefore, the upper frame has larger weight, the widest machine type has the weight of 25 tons, namely the longitudinal gravity load, when the sanding machine works, a workpiece is strongly clamped and conveyed into the upper sand frame and the lower sand frame to generate reverse vertical load on the upper frame, and in order to ensure the sanding thickness precision, a lifting device connected with the upper frame and the lower frame needs to control reverse mechanical clearance. In addition, during grinding work, a workpiece is fed into the sander at a high speed through the plate feeding conveying roller table, and meanwhile, the horizontal tangential force is large during grinding work, namely, the horizontal load is large. When the thickness specification of the sanding workpiece is changed or the equipment is maintained and overhauled, the upper frame needs to be lifted. In the early stage, the lifting of the upper frame adopts a hydraulic cylinder type, and the lifting, the falling, the hovering and the pressure maintaining are realized through a hydraulic station and a series of valve banks. The thickness gauge is arranged beside the hydraulic cylinder, when workpieces with different thickness specifications are sanded, the thickness gauge around the hydraulic cylinder is manually replaced, the workpiece specification replacement in the mode is inconvenient, the precision is kept unstable after replacement, and frequent adjustment is needed. The hydraulic cylinder is often inclined and difficult to adjust due to large front and back weight deviation of the upper frame. The precision of the common mechanical lifter can not meet the requirement, the reverse clearance is large, and the lateral force bearing capacity is not enough.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to solve above-mentioned problem, provide a vertical and horizontal heavy load elevating gear and broad width grinder of high accuracy.

In order to achieve the above object of the present invention, the present invention provides a vertical and horizontal heavy load lifting device, which comprises a driving device and a transmission device connected with the driving device, wherein the driving device comprises a worm and a worm wheel meshed with the worm, the transmission device comprises a guiding outer cylinder, a guiding inner cylinder movably connected with the guiding outer cylinder in the guiding outer cylinder, a nut fixedly connected in the guiding inner cylinder, and a lead screw matched with the nut, and the lead screw is coaxially connected with the worm wheel;

the driving device and the transmission device are directly provided with longitudinal anti-loosening pressure covers.

According to the utility model discloses an aspect, drive arrangement still includes the worm gear case, the worm wheel is installed in the worm gear case, still is equipped with the bearing in the worm gear case.

According to one aspect of the present invention, the lead screw passes through the worm wheel and is coaxially connected with the worm wheel, and a first guide bearing and a second guide bearing are respectively disposed on both sides of the worm wheel, and the second guide bearing is disposed on one side of the worm wheel close to the transmission device;

and a heavy-duty locknut is installed on the outer side of the first guide bearing.

According to the utility model discloses an aspect, vertical anti-loosening gland that disappears install in between direction urceolus and the worm gear case.

According to an aspect of the utility model, be equipped with the tank filler sleeve on the direction urceolus.

According to an aspect of the utility model, be equipped with on the inner wall of direction urceolus and prevent changeing the feather key.

According to an aspect of the utility model, be equipped with direction dust ring on the direction urceolus top inner wall.

According to an aspect of the utility model, indulge horizontal heavy load elevating gear still include with the ball pivot structure that direction inner tube top is connected.

The utility model also provides a broad width grinder, including last frame and lower carriage, go up the frame with be equipped with a plurality of series connections between the lower carriage move about freely and quickly heavy load elevating gear.

The utility model discloses a move about freely and quickly heavy load elevating gear compares with traditional pneumatic cylinder lift or ordinary mechanical elevating system, and the lead screw lower extreme sets up vertical anti-loosening gland of eliminating crack and heavy load lock nut in worm gear incasement portion location, can not float and influence the work precision when the work piece is cut to the sand. The utility model discloses the top sets up the ball pivot structure, prevents that big plane multiple spot is fixed to be produced and crosses the location. The guide inner cylinder and the guide outer cylinder which are provided with lubricating oil grooves and anti-rotation sliding keys are arranged outside the screw rod, so that transverse impact force is borne, and the lifting and working stability of the upper frame is improved.

Drawings

Fig. 1 schematically shows a structural view of a longitudinal and transverse heavy-duty lifting device according to the present invention.

Detailed Description

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments will be briefly described below. It is obvious that the drawings in the following description are only some embodiments of the invention, and that for a person skilled in the art, other drawings can be derived from them without inventive effort.

In describing embodiments of the present invention, the terms "longitudinal," "lateral," "up," "down," "front," "back," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and other terms are used in an orientation or positional relationship shown in the associated drawings for convenience and simplicity of description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus are not to be construed as limiting the present invention.

The present invention will be described in detail with reference to the accompanying drawings and specific embodiments, which are not repeated herein, but the present invention is not limited to the following embodiments.

As shown in fig. 1, the utility model provides a vertical and horizontal heavy load lifting device, which comprises a driving device 1 and a transmission device 2 connected with the driving device 1.

The driving device 1 of the present invention includes a worm 11 and a worm wheel 12 engaged with the worm 11. The transmission device 2 comprises a guide outer cylinder 21, a guide inner cylinder 22 which is positioned in the guide outer cylinder 21 and movably connected with the guide outer cylinder 21, a nut 23 which is positioned in the guide inner cylinder 22 and fixedly connected with the guide inner cylinder, and a screw rod 24 which is matched with the nut 23, wherein the screw rod 24 is coaxially connected with the worm wheel 12, and the driving device 1 and the transmission device 2 are directly provided with a longitudinal anti-backlash anti-loosening gland 3.

Particularly, the driving device 1 of the present invention further includes a worm gear case 1a, the worm gear 12 is installed in the worm gear case 1a, and the worm 11 is engaged with the worm gear 12. The worm gear case 1a is also provided with a bearing 13, and the screw rod 24 passes through the worm gear 12 to be coaxially connected with the worm gear 12 and is arranged on the bearing 13. A first guide bearing 4 and a second guide bearing 5 are respectively arranged on two sides of the worm wheel 12 to perform lateral positioning to ensure stability. The second guide bearing 5 is arranged on one side of the worm wheel 12 close to the transmission device 2, and the heavy-duty locknut 6 is installed on the outer side of the first guide bearing 4. The utility model discloses a vertical anti-loosening gland 3 that disappears of crack installs between direction urceolus 21 and worm-gear case 1 a.

The utility model discloses a be equipped with tank filler sleeve 7 on the direction urceolus 21, be equipped with on the inner wall and prevent changeing feather key 8, be equipped with direction dust ring 9 on the inner wall of top.

The utility model discloses a indulge horizontal heavy load elevating gear still includes the ball pivot structure 10 that is connected with direction inner tube 22 top.

The utility model also provides a move about freely and quickly heavy load elevating gear's broad width grinder, including last frame A and lower frame B. A plurality of tandem longitudinal and transverse heavy-load lifting devices can be arranged between the upper frame A and the lower frame B according to actual requirements. For example, 4 or 6 pieces of heavy load lifting devices are arranged, and synchronous lifting is realized through connecting rod series connection.

The utility model discloses a move about freely and quickly heavy load elevating gear theory of operation as follows:

the worm 11 is driven to rotate by the external frequency-modulation speed-regulation motor, the worm wheel 12 meshed with the worm wheel drives the precise ball screw 24 to rotate, the guide inner cylinder 22 fixed with the nut 23 of the precise ball screw 24 slides along the inner wall of the guide outer cylinder 21 to realize lifting, the lifting amount is accurately counted by an external rotary encoder and fed back to the PLC, and the automatic precise positioning can be realized on a touch screen by real-time monitoring and according to an input value. After bearing, the precision ball screw 24 acts on the bearing 13 through the worm wheel 12, and the precision ball screw 24 is laterally positioned in the worm gear case 1a through the guide bearing 4 and the guide bearing 5 to ensure stability. The precision ball screw 24 bears the weight of the upper frame when the workpiece is not ground, bears upward reaction force when the workpiece is ground, and eliminates an internal axial clearance through the heavy-load locknut 6 and the longitudinal clearance-eliminating locknut 3 when the workpiece is carried in two directions so as to ensure the processing precision of the equipment. The precision ball screw 24 is connected with the guide inner cylinder 22, and the top of the guide inner cylinder 22 is connected with an upper frame A of the broad sanding machine through the spherical hinge structure 10, so that the large plane multipoint fixation is prevented from generating over-positioning. The guide inner cylinder 22 is in sliding fit with the guide outer cylinder 21, so that the lifting can be realized, and the transverse heavy load can be borne. A lubricating oil groove is formed in the inner wall of the guide outer cylinder 21, and the matching surface is periodically lubricated through the oil filling nozzle 7, so that the guide inner cylinder 22 and the guide outer cylinder 21 are prevented from being clamped; an anti-rotation sliding key 9 is arranged on the inner wall of the top of the guide outer cylinder 21 to prevent the follow-up rotation of the guide inner cylinder 22 from losing effectiveness; the inner wall of the top of the guide outer cylinder 21 is provided with a guide dustproof ring 9 to prevent dust impurities from entering a matching surface and being clamped.

The utility model discloses a move about freely and quickly heavy load elevating gear compares with traditional pneumatic cylinder lift or ordinary mechanical elevating system, and the 24 lower extremes of lead screw set up vertical anti-loosening gland 3 that disappears in worm-gear case 1a inside location, can not float and influence the work precision when the work piece is cut to the sand. The utility model discloses the top sets up spherical hinge structure 10, prevents that big plane multiple spot is fixed to be produced and crosses the location. The guide inner cylinder 22 and the guide outer cylinder 21 with lubricating oil grooves and anti-rotation sliding keys 8 are arranged outside the screw rod 24, so that transverse impact force is borne, and the stability of the upper frame during lifting and working is improved.

The above description is only one embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The longitudinal and transverse heavy-load lifting device is characterized by comprising a driving device (1) and a transmission device (2) connected with the driving device (1), wherein the driving device (1) comprises a worm (11) and a worm wheel (12) meshed with the worm (11), the transmission device (2) comprises a guide outer cylinder (21), a guide inner cylinder (22) which is positioned in the guide outer cylinder (21) and movably connected with the guide outer cylinder (21), a nut (23) fixedly connected in the guide inner cylinder (22), and a lead screw (24) matched with the nut (23), and the lead screw (24) is coaxially connected with the worm wheel (12);

the driving device (1) and the transmission device (2) are directly provided with a longitudinal anti-backlash anti-loosening gland (3).

2. The longitudinal and transverse heavy-load lifting device according to claim 1, wherein the driving device (1) further comprises a worm gear box (1a), the worm gear (12) is installed in the worm gear box (1a), a bearing (13) is further arranged in the worm gear box (1a), and the worm (11) is installed on the bearing (13) and meshed with the worm gear (12).

3. The longitudinal and transverse heavy-duty lifting device according to claim 2, characterized in that the screw rod (24) passes through the worm gear (12) and is coaxially connected with the worm gear (12), a first guide bearing (4) and a second guide bearing (5) are respectively arranged on two sides of the worm gear (12), and the second guide bearing (5) is arranged on one side of the worm gear (12) close to the transmission device (2);

and a heavy-duty locknut (6) is installed on the outer side of the first guide bearing (4).

4. Longitudinal and transverse heavy-duty lifting device according to claim 3, characterized in that said longitudinal anti-backlash anti-loosening gland (3) is mounted between said guide outer cylinder (21) and the worm-gear case (1 a).

5. The longitudinal and transverse heavy load lifting device according to claim 1, wherein the guide outer cylinder (21) is provided with an oil filling hole (7).

6. The longitudinal and transverse heavy-duty lifting device according to claim 1, characterized in that the inner wall of the guide outer cylinder (21) is provided with an anti-rotation sliding key (8).

7. The longitudinal and transverse heavy-load lifting device according to claim 1, wherein a guiding dust ring (9) is arranged on the inner wall of the top of the guiding outer cylinder (21).

8. The device for lifting/lowering longitudinal/transverse loads according to claim 1, further comprising a ball-and-socket joint structure (10) connected to the top of the guiding inner cylinder (22).

9. A broad width sander comprising the vertical and horizontal heavy load lifting device according to any one of claims 1 to 8, comprising an upper frame (A) and a lower frame (B), wherein a plurality of vertical and horizontal heavy load lifting devices are arranged in series between the upper frame (A) and the lower frame (B).