Unloading lifting mechanism capable of achieving self-adaptive adjustment

Abstract

The utility model relates to a discharging lifting mechanism capable of achieving self-adaptive adjustment. The discharging lifting mechanism comprises a lifting frame and guide rails on the two sides. The two groups of self-adaptive adjusting assemblies are symmetrically arranged left and right; the two groups of self-adaptive adjusting assemblies are respectively connected to vertical beams on the left side and the right side of the lifting frame; each self-adaptive adjusting assembly is composed of an upper support, a lower support, a connecting screw rod, an elastic pressing piece and two idler wheels. The upper support and the lower support are right-angle bent plate supports, rod penetrating holes are formed in the transverse faces, hinged through holes are formed in the middles of the vertical faces, and shaft holes are formed in the ends, away from the transverse faces, of the upper support and the lower support. The upper support and the lower support are installed on the connecting screw in a penetrating mode through the rod penetrating holes, the portion, between the upper support and the lower support, of the connecting screw is sleeved with an elastic pressing piece, and locking nuts are installed at the upper end and the lower end respectively. Hinge through holes in the upper support and the lower support are rotationally connected with vertical beams on the corresponding sides of the lifting frame through pin shafts. Rollers are respectively mounted in the shaft holes in the upper and lower brackets through supporting shafts and are in rolling contact with the inner side surfaces of the rails. The mechanism realizes smooth lifting of the lifting frame.

Description

TECHNICAL FIELD

[0001] The utility model belongs to potato picking equipment technical field relates to the self -discharging device of potato picking machine, concretely relates to a kind of unload lifting mechanism that can realize self-adaptive adjustment. BACKGROUND

[0002] Potato picking machine is a kind of equipment to realize automatic picking of potato, patent application number is: 2020111298823, the invention patent with the name: a kind of self-propelled harvesting picking machine is disclosed, a kind of equipment that can realize potato picking, the equipment includes vehicle body part and operation part;The vehicle body part includes vehicle chassis, cab, drive axle, steering axle and engine;The operation part includes picking table assembly, conveyor, sorting table and self-discharging device;Along the conveying direction of harvested material, the picking table assembly, conveyor, sorting table and self-discharging device are sequentially connected in front and back direction.The self-discharging device is integrally arranged at the rear end of the vehicle body and is connected with the sorting table of the picking machine;Including rack, two tracks oppositely arranged, lifting frame, drive mechanism and rear trailer, the rear trailer includes the trailer platform for supporting collection bag;Two tracks are fixedly connected with the rack, the lifting frame is movably installed between two guide rails, the drive mechanism is connected with the lifting frame, the rear trailer is hingedly connected with the lifting frame and is guided with two guide rails;When the lifting frame is in upper working position, the rear trailer is synchronously in upper working position and is in upraised state;When the lifting frame is in lower working position, the rear trailer is synchronously in lower working position and is in down-inclined unloading state.

[0003] Due to the inconsistent gap between lifting frame and rack, lifting frame and track are not parallel, loading material is not in the center, two side lifting cylinders are not synchronous, etc., the lifting frame is tilted during lifting, which causes the lifting process to be stuck or stuck, and the lifting frame cannot move smoothly up and down, which adversely affects automatic unloading. UTILITY MODEL CONTENTS

[0004] The utility model discloses to the above-mentioned technical problem, propose a kind of unload lifting mechanism that can realize self-adaptive adjustment, so as to guarantee the smooth lifting process not to be stuck

[0005] The above-mentioned purpose of the utility model is realized by the following technical scheme:

[0006] A kind of unload lifting mechanism that can realize self-adaptive adjustment, including lifting frame, two side guide rails fixedly connected with rack, the left and right sides of the lifting frame are formed by guide wheel and the vertical direction guide slot of corresponding side guide rail Form guiding cooperation;It also includes two groups of self-adaptive adjustment components, two groups of self-adaptive adjustment components are symmetrically arranged and respectively connected on the left and right side vertical beams of lifting frame;

[0007] Each adaptive adjustment assembly is composed of an upper support, a lower support, a connecting screw rod, an elastic compression piece, and two rollers; the upper support and the lower support adopt the same structure of a right-angle bent plate support, a through-hole is arranged on the horizontal surface of the right-angle bent plate support, a hinge through-hole is arranged on the middle of the vertical surface of the right-angle bent plate support, and a shaft hole is arranged on the end of the vertical surface of the right-angle bent plate support away from the horizontal surface;

[0008] The upper support and the lower support of each adaptive adjustment assembly are arranged on the connecting screw rod through the through-holes in a symmetrical manner, the elastic compression piece is sleeved on the connecting screw rod between the upper support and the lower support, the upper end and the lower end of the elastic compression piece are in pressure contact with the lower end surface of the upper support and the upper end surface of the lower support respectively, lock nuts are fixedly installed on the upper end of the horizontal surface of the upper support and the lower end of the horizontal surface of the lower support on the connecting screw rod, and the upper support and the lower support are connected to form a horseback type frame structure; a pin shaft is installed in the hinge through-hole on the upper support and the hinge through-hole on the lower support, and the pin shaft is rotatably connected with the corresponding side vertical beam of the lifting frame; a support shaft is fixedly installed in each of the shaft holes on the upper support and the shaft holes on the lower support, and a roller is installed on the outer end of each support shaft, and the two rollers are in rolling contact with the inner side surfaces of the corresponding side tracks.

[0009] Moreover, the elastic compression piece is a compression spring.

[0010] Moreover, the roller is a bearing.

[0011] Moreover, the through-holes on the upper support and the lower support are circular holes or long circular holes with a diameter larger than that of the connecting screw rod.

[0012] The utility model has the advantages and positive effects that:

[0013] The utility model installs one adaptive adjustment assembly on each side vertical beam of the lifting frame, four contact points are formed on the inner side surfaces of the two side tracks by the two adaptive adjustment assemblies, two on each side, the error amount of the lifting frame and the two side tracks in the horizontal direction caused by machining, installation and the like is eliminated, the independent swinging of the upper support and / or the lower support around the respective hinge centers or the simultaneous swinging of the upper and lower supports on the same side is realized, the rollers on the two sides are guaranteed to be in pressure contact with the inner side surfaces of the corresponding side tracks at the end, the center surface of the lifting frame tends to the center positions of the two side tracks, the lifting process is smooth and does not occur stagnation, the smooth lifting of the lifting frame is finally realized, and the smooth unloading is realized. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is a structure diagram of the unloading lifting mechanism capable of realizing adaptive adjustment.

[0015] Figure 2 It isFigure 1 is a local enlarged view of A in the figure;

[0016] Figure 3 is a front view of the adaptive adjustment structure of the utility model;

[0017] Figure 4 is a perspective view of the adaptive adjustment structure of the utility model. DETAILED DESCRIPTION

[0018] The structure of the utility model is further described below in combination with the drawings and through embodiments.

[0019] An unloading lifting mechanism capable of realizing adaptive adjustment, please refer to Figures 1-4 , comprising a lifting frame 3, two side rails 1 fixedly connected with the rack, the left and right sides of the lifting frame are guided through guide wheels 4 and the vertical guide grooves of the corresponding side rails to form a guide fit, and the invention point is that: it further comprises two groups of adaptive adjustment assemblies 2 symmetrically arranged on the left and right, and the two groups of adaptive adjustment assemblies are respectively connected to the left and right vertical beams of the lifting frame.

[0020] Each adaptive adjustment assembly is composed of an upper support 2.1, a lower support 2.2, a connecting screw 2.4, an elastic compression part 2.5, and two rollers 2.3, wherein the elastic compression part adopts a compression spring. The upper support and the lower support adopt the same structure of a right-angled bent plate support, a through-hole is arranged on the horizontal surface of the right-angled bent plate support, a hinge through-hole is arranged at the middle position of the vertical surface of the right-angled bent plate support, and a shaft hole is arranged at the end of the vertical surface of the right-angled bent plate support away from the horizontal surface.

[0021] The upper support and the lower support of each adaptive adjustment assembly are arranged on the connecting screw through the through-hole in a symmetrical manner, the elastic compression part is sleeved on the connecting screw between the upper support and the lower support, the upper end and the lower end of the elastic compression part are in pressure contact with the lower end surface of the upper support and the upper end surface of the lower support respectively. A locking nut is fixedly installed on the connecting screw at the upper end of the horizontal surface of the upper support and at the lower end of the horizontal surface of the lower support, thereby realizing the connection of the upper support and the lower support and forming a horseback type frame structure. A pin shaft 2.6 is installed in the hinge through-hole on the upper support and the lower support, and the pin shaft is rotatably connected with the corresponding vertical beam of the lifting frame. A support shaft is fixedly installed in each of the shaft holes on the upper support and the lower support, and a roller is installed on the outer end of each support shaft. The roller preferably adopts a bearing and is in rolling contact with the inner surface of the corresponding side rail through the two rollers.

[0022] The through-hole on the upper support and the lower support is a circular hole with a diameter larger than the outer diameter of the connecting screw or an oblong hole along the left-right direction, so as to avoid the constraint of the connecting screw on the swing of the support.

[0023] The upper support and the lower support adopt bending forming structure, and reinforcing rib plates are welded between the horizontal surface and the vertical surface of the support, so that the structural strength of the upper support and the lower support is improved.

[0024] The four rollers on the two sides realize better guiding cooperation between the horizontal lifting frame and the two side rails in the horizontal direction, avoids arbitrary swinging of the lifting frame in the horizontal direction, and thus realizes good guiding cooperation between the lifting frame and the two side rails in the vertical direction, and avoids the problems of jamming and blocking of the lifting frame in the lifting process.

[0025] Although the embodiments and drawings of the utility model are disclosed for the purpose of illustration, those skilled in the art can understand that various substitutions, changes and modifications are possible without departing from the spirit of the utility model and the appended claims, therefore, the scope of the utility model is not limited to the contents disclosed by the embodiments and drawings.

Claims

1. An unloading lifting mechanism capable of adaptive adjustment, comprising a lifting frame and two side rails fixedly connected to the frame, the left and right sides of the lifting frame being guided by guide wheels in vertical guide grooves of the corresponding side rails; characterized in that: Two sets of adaptive adjusting assemblies are symmetrically arranged on the left and right sides of the lifting frame and connected to the left and right side vertical beams of the lifting frame respectively; Each set of adaptive adjusting assemblies is composed of an upper support, a lower support, a connecting screw rod, an elastic compression member, and two rollers; the upper support and the lower support are straight-angle bent plate supports with the same structure, a through-hole is arranged on the horizontal surface of the straight-angle bent plate support, a hinge through-hole is arranged on the vertical surface of the straight-angle bent plate support, and a shaft hole is arranged on the vertical surface of the straight-angle bent plate support away from the horizontal surface; The upper support and the lower support of each set of adaptive adjusting assemblies are arranged on the connecting screw rod in a vertically symmetrical manner through the through-holes, the elastic compression member is sleeved on the connecting screw rod between the upper support and the lower support, the upper end and the lower end of the elastic compression member are in pressure contact with the lower end surface of the upper support and the upper end surface of the lower support respectively, lock nuts are fixedly installed on the connecting screw rod at the upper end of the horizontal surface of the upper support and at the lower end of the horizontal surface of the lower support, and the upper support and the lower support are connected to form a horseback type frame structure; a pin shaft is installed in the hinge through-hole of the upper support and the lower support, the pin shaft is rotatably connected to the corresponding side vertical beam of the lifting frame, a support shaft is fixedly installed in each of the shaft holes of the upper support and the lower support, a roller is installed on the outer end of each of the two support shafts, and the two rollers are in rolling contact with the inner side surface of the corresponding side track.

2. The self-adjusting discharge lift mechanism of claim 1, wherein: The elastic compression member is a compression spring.

3. The self-adjusting discharge lift mechanism of claim 1, wherein: The roller is a bearing.

4. The self-adjusting discharge lift mechanism of claim 1, wherein: The through-holes of the upper support and the lower support are circular holes or long circular holes along the left-right direction, and the diameters of the through-holes are greater than the diameter of the connecting screw rod.

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