CN219507514U - Electric lifting frame - Google Patents

Abstract

The utility model discloses an electric lifting frame, which relates to a lifting device, and comprises a stand column and a rotating arm rotating on the stand column, wherein a screw rod lifting mechanism capable of vertically feeding downwards is arranged at the extending end of the rotating arm, the lifting frame is fixedly arranged at the output end of the screw rod lifting mechanism, a sleeve sleeved at the output end of the screw rod lifting mechanism is also arranged on the rotating arm, a shaft sleeve is arranged in the sleeve, a connecting shaft is arranged on the lifting frame, and the shaft sleeve is matched with the connecting shaft through a key. The utility model can prevent the steamer cover from rotating around the center of the steamer cover in the hanging process, and ensure that the steamer cover is more accurate in the later resetting process.

Description

Electric lifting frame

Technical Field

The utility model relates to a lifting device, in particular to an electric lifting frame.

Background

The steamer is one of important equipment in the distilled white spirit production process, and mainly comprises a steamer barrel and a steamer cover. Wherein, the steamer cover is heavier to avoid pushing out the steamer cover by vapor pressure in the distillation process or avoid the wine vapor from escaping out of the steamer due to the non-tight buckling of the cover, so the weight of the steamer cover is heavier than about 200 Kg to 400Kg in the traditional design and the modern design.

In the brewing process, after steaming, the distiller's grains need to be opened for the next operation, but when the cover is opened, the temperature of the cover is very high, and steam on the cover can be condensed into hot water to drop in the cover opening process, so that workers are easy to scald, and the cover is enabled to leave the distiller's grains and be automatically closed.

At present, the rice steamer cover is lifted by a simple lifting device: lifting the center of the steamer cover by using lifting equipment. For example: the utility model discloses an electronic gallows of lifting of rice steamer lid for white spirit production line in application number CN201620289131.0, including the stand, there is the rocking arm stand upper end, adopts the rotation connected mode between rocking arm and the stand, and the rocking arm end is provided with elevating system, has linked firmly the gallows under the elevating system, can be convenient realize the cover of taking off of rice steamer lid, move the lid and close the lid. But the electric lifting frame disclosed in the technical scheme is easy to rotate by the center of the steamer cover when lifting the steamer cover, so that the later-stage resetting of the steamer cover cannot be accurately realized.

Disclosure of Invention

The utility model aims to provide an electric lifting frame, which ensures that a steamer cover cannot rotate around the center of the steamer cover in the lifting process, and ensures that the steamer cover is more accurate in later resetting.

In order to achieve the aim of the utility model, the technical scheme adopted is as follows: the utility model provides an electronic gallows, includes the stand and on the stand pivoted rocking arm, but the lead screw elevating system of vertical downfeed is installed to rocking arm extension, lead screw elevating system output fixed mounting has the gallows, still install the cover on the rocking arm and establish the sleeve pipe at lead screw elevating system output, install the axle sleeve in the sleeve pipe, and have the connecting axle on the gallows, the axle sleeve passes through the key cooperation with the connecting axle.

Further, the inner wall of the shaft sleeve is provided with a plurality of convex keys, the connecting shaft is provided with a plurality of key grooves matched with the convex keys, and the key grooves extend along the length direction of the connecting shaft.

Further, the plurality of convex keys and the plurality of key grooves are uniformly distributed at intervals along the circumferential direction of the connecting shaft.

Furthermore, the bushing is welded inside the sleeve, the lower end face of the bushing is higher than the lower end face of the sleeve, the outer wall of the shaft sleeve is further provided with a flange, and the flange is fixed with the lower end face of the bushing through screws.

Further, the lower end of the connecting shaft is also fixed with an upper flange, the hanging bracket comprises a lower flange fixed with the upper flange, and the lower flange is also provided with a plurality of connecting arms for connecting the steamer cover.

Further, the number of the connecting arms is three, and the three connecting arms are uniformly distributed at intervals along the circumferential direction of the lower flange.

Furthermore, the lower surface of the upper flange is also provided with a positioning boss, and the upper surface of the lower flange is also provided with a positioning groove matched with the positioning boss.

Further, a lifting limit switch for detecting the screw rod in the screw rod lifting mechanism is further arranged on the rotating arm.

Furthermore, a fixed seat is also arranged at the upper end of the upright post, a lower bearing seat is commonly arranged on the fixed seat and the rotating arm, an upper bearing seat is also arranged on the rotating arm, and a rotating shaft is commonly arranged on the upper bearing seat and the lower bearing seat; and a speed reducer for driving the rotating shaft to rotate is fixedly arranged on the rotating arm.

Further, the rotary limit switch is used for detecting the rotation of the rotary arm.

The beneficial effects of the utility model are as follows:

according to the utility model, the shaft sleeve is arranged in the sleeve, the connecting shaft on the hanging frame is matched with the shaft sleeve through the key, so that the connecting shaft on the hanging frame and the shaft sleeve can not rotate relatively after the hanging frame is arranged, the screw rod lifting mechanism can not rotate with the center of the hanging frame and the steamer cover fixed with the hanging frame in the later stage in the lifting process of the hanging frame, the steamer cover is more accurate in the later stage resetting, the relative positions of the steamer cover and the steamer body can not be changed, and the steamer cover can be accurately covered on the steamer body.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the principles of the utility model.

FIG. 1 is a schematic view of the structure of an electric lifting frame provided by the utility model;

FIG. 2 is an enlarged partial view of portion A of FIG. 1;

fig. 3 is a partial enlarged view of a portion B in fig. 1.

The reference numerals and corresponding part names in the drawings:

1. the device comprises a stand column, 2, a rotating arm, 3, a fixed seat, 4, an upper bearing seat, 5, a lower bearing seat, 6, a rotating shaft, 7, a speed reducer, 8, a rotating limit switch, 9, a screw rod lifting mechanism, 10, a lifting limit switch, 11, a sleeve, 12, a bushing, 13, a connecting shaft, 14, a convex key, 15, a key slot, 16, an upper flange, 17, a lower flange, 18, a connecting arm, 19 and a shaft sleeve.

Detailed Description

The present utility model will be described in further detail with reference to the drawings and embodiments. It is to be understood that the specific embodiments described herein are merely illustrative of the substances, and not restrictive of the utility model. It should be further noted that, for convenience of description, only the portions related to the present utility model are shown in the drawings.

In addition, the embodiments of the present utility model and the features of the embodiments may be combined with each other without collision. The present utility model will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.

As shown in figure 1, the electric lifting frame comprises a stand column 1 and a rotating arm 2, when the electric lifting frame is installed, the stand column 1 is installed on one side of a steamer body, the lower end of the stand column 1 can be fixed on the ground through an anchor rod and the like, the rotating arm 2 is rotatably installed on the stand column 1, and the rotating arm 2 can fully rotate on the stand column 1. The screw lifting mechanism 9 is further arranged at one end, far away from the upright post 1, of the rotating arm 2, the screw lifting mechanism 9 comprises a lifting motor, a worm gear reducer and a screw rod, the lifting motor and the worm gear reducer are arranged on the rotating arm 2, the lifting motor drives the worm gear reducer to operate, the worm gear reducer drives the screw rod to reciprocate while operating, and specifically, the direction of the reciprocating motion of the screw rod in the screw rod lifting mechanism 9 is consistent with the height direction, namely, when the screw rod lifting mechanism 9 operates, the screw rod in the screw rod lifting mechanism 9 moves up and down in the vertical direction; meanwhile, a hanging bracket is also arranged at the lower end of the screw rod in the screw rod lifting mechanism 9, and the lower end of the hanging bracket is used for being fixed with the steamer cover in actual use.

The end, far away from the upright post 1, of the rotating arm 2 is fixedly provided with a sleeve 11, the central axis of the sleeve 11 is in the same straight line with the central axis of a screw rod in the screw rod lifting mechanism 9, when the sleeve 11 is arranged on the rotating arm 2, the lower end of the screw rod in the screw rod lifting mechanism 9 is positioned in the sleeve 11, the sleeve 11 is fixedly provided with a shaft sleeve 19, and the shaft sleeve 19 can be positioned at the lower end of the sleeve 11; the hanging bracket is further provided with the connecting shaft 13, the central axis of the connecting shaft 13 is in the same straight line with the central axis of the shaft sleeve 19, the inner wall of the shaft sleeve 19 is matched with the outer wall of the connecting shaft 13 through keys, the connecting shaft 13 is ensured to move up and down in the shaft sleeve 19, and meanwhile, the connecting shaft 13 and the shaft sleeve 19 are effectively prevented from generating relative rotation, so that the screw rod lifting mechanism 9 is effectively prevented from rotating by the center of the steamer cover in the construction of hanging the steamer cover through the hanging bracket, the steamer cover is enabled to reset more accurately in the later period, the relative position of the steamer cover and the steamer body is ensured not to change, and the steamer cover is ensured to be provided with an accurate cover on the steamer body.

The inner wall of the shaft sleeve 19 is provided with a plurality of convex keys 14, the length of the convex keys 14 can be equal to that of the shaft sleeve 19, and the length of the convex keys 14 can be smaller than that of the shaft sleeve 19; the length of connecting axle 13 is greater than the length of connecting axle 13 and the relative displacement of axle sleeve 19, and still offer on the connecting axle 13 with a plurality of protruding key 14 one-to-one's keyway 15, the keyway 15 extends along the length direction of connecting axle 13, simultaneously, the length of keyway 15 is greater than the length of connecting axle 13 and the relative displacement of axle sleeve 19, can avoid not only that lead screw elevating system 9 is in driving connecting axle 13 up-and-down motion in-process protruding key 14 breaks away from keyway 15, and can effectively avoid the both ends of keyway 15 to cause the hindrance to the up-and-down motion of connecting axle 13.

In order to enable the screw rod lifting mechanism 9 to be smoother in the process of driving the connecting shaft 13 to move up and down, the outer wall of the connecting shaft 13 is in clearance fit with the inner wall of the shaft sleeve 19, and the width of the key groove 15 is in clearance fit with the width of the convex key 14.

In the utility model, the convex key 14 can be arranged on the outer wall of the connecting shaft 13, the key groove 15 is arranged on the inner wall of the shaft sleeve 19, when the length of the shaft sleeve 19 is smaller than that of the connecting shaft 13, the two ends of the key groove 15 can respectively penetrate through the two ends of the shaft sleeve 19, at the moment, the length of the convex key 14 can be equal to that of the connecting shaft 13, so that the convex key 14 can be always and slidably clamped in the key groove 15 in the process of driving the connecting shaft 13 to move up and down by the screw rod lifting mechanism 9, and the rotation stopping effect of the hanger is ensured.

The convex keys 14 and the key grooves 15 are uniformly distributed at intervals along the circumferential direction of the connecting shaft 13, so that the steamer cover can limit relative rotation through the cooperation of the convex keys 14 and the key grooves 15 in the circumferential direction of the connecting shaft 13 in the hanging process, and the torsional force applied to the connecting shaft 13 by the steamer cover can be uniformly dispersed to the shaft sleeve 19 through the cooperation of the convex keys 14 and the key grooves 15, so that damage to the convex keys 14 can be effectively reduced.

A lining 12 is welded inside the sleeve 11, the lining 12 is positioned at the lower end of the sleeve 11, and the lower end surface of the lining 12 is higher than the lower end surface of the sleeve 11, so that the lower end of the inner wall of the sleeve 11 is provided with a step structure; meanwhile, the outer wall of the shaft sleeve 19 is also provided with an annular flange, the large diameter of the flange is matched with the inner diameter of the sleeve 11, the thickness of the flange is matched with the lower end face of the bushing 12 and the height difference of the lower end face of the sleeve 11, when the shaft sleeve 19 is installed, the flange is attached to the lower end face of the bushing 12, the lower surface of the flange is flush with the lower end face of the sleeve 11, at the moment, the flange is fixed on the bushing 12 by adopting screws, so that the shaft sleeve 19 is fixed, and the installation of the shaft sleeve 19 is faster and more convenient.

The lower end of the connecting shaft 13 is welded with an upper flange 16, the hanging frame comprises a connecting arm 18 and a lower flange 17, the connecting arm 18 is used for being connected with the steamer cover, the connecting arms 18 are multiple, the lower flange 17 is jointly installed at the upper ends of the connecting arms 18, the upper flange 16 is fixedly connected with the lower flange 17 through bolts, and therefore connection between the hanging frame and the connecting shaft 13 is achieved, and connection between the hanging frame and the connecting shaft 13 is more convenient.

The number of the connecting arms 18 is three, and the three connecting arms 18 are uniformly distributed at intervals along the circumferential direction of the lower flange 17, so that after the three connecting arms 18 are connected with the steamer cover and lifted, the center of gravity of the steamer cover is kept at the center of the three connecting arms 18, the steamer cover is prevented from inclining in the lifting process, and the lifting of the steamer cover is safer. Of course, under the condition of ensuring that the caldron cover can keep stable after lifting, the number of the connecting arms 18 can be two or four, and the specific number of the connecting arms 18 can be adjusted according to actual conditions.

The lower surface of the upper flange 16 is also provided with a positioning boss, the positioning boss can be a round table which coincides with the center of the upper flange 16, the positioning boss can also be a boss which is arranged at any position of the lower surface of the upper flange 16, and the upper surface of the lower flange 17 is also provided with a positioning groove which is matched with the positioning boss, so that when the upper flange 16 and the lower flange 17 are required to be fixed through bolts, the bolt holes on the upper flange 16 are accurately corresponding to the bolt holes on the lower flange 17 through the matching of the positioning groove and the positioning boss, and the fixing of the upper flange 16 and the lower flange 17 is more convenient. Of course, the positions of the positioning boss and the positioning groove may be interchanged in the present utility model, that is, the positioning boss is provided on the upper surface of the lower flange 17 and the positioning groove is provided on the lower surface of the upper flange 16.

The rotating arm 2 is also provided with a lifting limit switch 10 for detecting the screw rod in the screw rod lifting mechanism 9, so that the screw rod in the screw rod lifting mechanism 9 can be accurately controlled in the process of lifting the steamer cover by stopping the rotation of the lifting motor in the screw rod lifting mechanism 9 after the screw rod in the screw rod lifting mechanism 9 is lifted or lowered to a fixed position through the detection of the lifting limit switch 10 in the vertical movement process.

The stand 1 is hollow structure, fixing base 3 is still installed to stand 1 upper end, fixing base 3 is located inside stand 1, and install bolster bearing 5 jointly with the rear end of rocking arm 2 on the fixing base 3, bolster bearing 5 lower extreme and fixing base 3 normal running fit, bolster bearing 5 upper end is fixed on rocking arm 2, simultaneously, still install bolster bearing 4 on the rocking arm 2, bolster bearing 4 and bolster bearing 5 all are located same perpendicular line, all install the bearing in bolster bearing 4 and the bolster bearing 5, support jointly on two bearings has pivot 6, thereby make rocking arm 2 can fully rotate on stand 1. The rotating arm 2 is fixedly provided with a machine seat, the machine seat is provided with a speed reducer 7, the output end of the speed reducer 7 is connected with a rotating shaft 6 through a coupler, the speed reducer 7 drives the rotating shaft 6 to synchronously rotate during operation, and the rotating shaft 6 drives the lower bearing seat 5 to rotate while rotating, so that the rotating arm 2 rotates on the upright post 1.

The electric lifting frame further comprises a rotary limit switch 8 for detecting the rotation of the rotary arm 2, and specifically, the rotary limit switch 8 can be directly installed on an external frame, so that the rotary arm 2 rotates on the upright post 1 in the process of rotating, the rotary arm 2 rotates to the upper part of the steamer cover or the rotary arm 2 rotates to the upper part of the position for placing the steamer cover through the detection of the rotary limit switch 8, and the speed reducer 7 stops rotating, so that the rotary arm 2 can be accurately controlled in the rotating process.

In the utility model, the lower end of a connecting arm 18 is fixed with a steamer cover in the early stage, when the steamer cover needs to be opened in the distillation process, a lifting motor in a screw rod lifting mechanism 9 drives a worm gear reducer to rotate positively, the worm gear reducer drives a screw rod to move upwards, and when a lifting limit switch 10 detects that the screw rod in the screw rod lifting mechanism 9 moves upwards to a fixed position, the lifting motor in the screw rod lifting mechanism 9 stops running; then, the speed reducer 7 drives the rotating shaft 6 to rotate, the rotating shaft 6 drives the rotating arm 2 to rotate on the upright post 1 while rotating, and after the rotation limit switch 8 detects that the rotating arm 2 rotates to a fixed position, the speed reducer 7 stops rotating.

When the steamer cover is required to be arranged on the steamer body, the speed reducer 7 drives the rotating shaft 6 to reversely rotate, the rotating shaft 6 reversely rotates and drives the rotating arm 2 to reversely rotate on the upright post 1, and when the rotation limit switch 8 detects that the rotating arm 2 rotates to an initial position, the speed reducer 7 stops rotating; then, a lifting motor in the screw rod lifting mechanism 9 drives a worm gear reducer to reversely rotate, the worm gear reducer drives the screw rod to downwards move, and when the lifting limit switch 10 detects that the screw rod in the screw rod lifting mechanism 9 downwards moves to an initial position, the lifting motor in the screw rod lifting mechanism 9 stops running, and the steamer cover is accurately covered on the steamer body.

In order to meet the requirement of hanging steamer covers with different sizes, the utility model can also be provided with a plurality of guide grooves extending along the radial direction of the steamer covers on the lower flange 17, a plurality of bolt holes uniformly distributed at intervals along the axial direction of the steamer covers are arranged in the guide grooves, meanwhile, a fixed block is fixedly arranged at the upper end of the connecting arm 18, the fixed block is also provided with the bolt holes, the fixed block is clamped in the guide grooves, and the fixed block is locked at the corresponding position of the guide grooves through the bolts. When the steamer cover with larger size is required to be hung, the bolts for locking the fixed block and the lower flange 17 are loosened, the fixed block is moved along the outer end of the guide groove, and when the fixed block is moved to a fixed position, the fixed block is locked and fastened in the guide groove through the bolts; when the steamer cover with smaller size needs to be hung, the bolts for locking the fixed block and the lower flange 17 are loosened, the fixed block moves along the inner end of the guide groove, and when the fixed block moves to a fixed position, the fixed block is locked and fastened in the guide groove through the bolts.

The inner end of the guide groove means the end of the guide groove near the center of the lower flange 17, and the outer end of the guide groove means the end of the guide groove near the center of the lower flange 17.

In the description of the present specification, reference to the terms "one embodiment/manner," "some embodiments/manner," "example," "a particular example," "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment/manner or example is included in at least one embodiment/manner or example of the utility model. In this specification, the schematic representations of the above terms are not necessarily for the same embodiment/manner or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments/modes or examples. Furthermore, the various embodiments/modes or examples described in this specification and the features of the various embodiments/modes or examples can be combined and combined by persons skilled in the art without contradiction.

Furthermore, the terms "first," "second," and the like, 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, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present utility model, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.

It will be appreciated by persons skilled in the art that the above embodiments are provided for clarity of illustration only and are not intended to limit the scope of the utility model. Other variations or modifications will be apparent to persons skilled in the art from the foregoing disclosure, and such variations or modifications are intended to be within the scope of the present utility model.

Claims (10)

1. The utility model provides an electronic gallows, includes stand (1) and pivoted rocking arm (2) on stand (1), but lead screw elevating system (9) of vertical downfeed are installed to rocking arm (2) extension, and lead screw elevating system (9) output fixed mounting has the gallows, a serial communication port, still install sleeve pipe (11) of cover at lead screw elevating system (9) output on rocking arm (2), install axle sleeve (19) in sleeve pipe (11), and have connecting axle (13) on the gallows, axle sleeve (19) pass through key cooperation with connecting axle (13).

2. The electric lifting frame according to claim 1, wherein the inner wall of the shaft sleeve (19) is provided with a plurality of convex keys (14), the connecting shaft (13) is provided with a plurality of key grooves (15) matched with the convex keys (14), and the key grooves (15) extend along the length direction of the connecting shaft (13).

3. An electric lifting frame as claimed in claim 2, characterized in that the plurality of said male keys (14) and the plurality of key grooves (15) are each arranged at regular intervals along the circumferential direction of the connecting shaft (13).

4. The electric lifting frame according to claim 1, wherein a bushing (12) is welded inside the sleeve (11), the lower end surface of the bushing (12) is higher than the lower end surface of the sleeve (11), a flange is further arranged on the outer wall of the shaft sleeve (19), and the flange is fixed with the lower end surface of the bushing (12) through screws.

5. An electric lifting frame as claimed in claim 1, characterized in that the lower end of the connecting shaft (13) is further fixed with an upper flange (16), and the lifting frame comprises a lower flange (17) fixed with the upper flange (16), and the lower flange (17) is further provided with a plurality of connecting arms (18) for connecting the steamer cover.

6. The electric lifting frame according to claim 5, wherein the number of the connecting arms (18) is three, and the three connecting arms (18) are uniformly distributed at intervals along the circumferential direction of the lower flange (17).

7. The electric lifting frame according to claim 5, characterized in that the lower surface of the upper flange (16) is further provided with a positioning boss, and the upper surface of the lower flange (17) is further provided with a positioning groove matched with the positioning boss.

8. An electric lifting frame according to any one of claims 1 to 7, characterized in that the swivel arm (2) is further provided with a lifting limit switch (10) for detecting the screw in the screw lifting mechanism (9).

9. The electric lifting frame according to any one of claims 1 to 7, wherein a fixed seat (3) is further installed at the upper end of the upright post (1), a lower bearing seat (5) is jointly installed on the fixed seat (3) and the rotating arm (2), an upper bearing seat (4) is further installed on the rotating arm (2), and a rotating shaft (6) is jointly installed on the upper bearing seat (4) and the lower bearing seat (5); the rotating arm (2) is also fixedly provided with a speed reducer (7) for driving the rotating shaft (6) to rotate.

10. An electric lifting frame according to any one of claims 1 to 7, further comprising a rotation limit switch (8) for detecting rotation of the swivel arm (2).