CN112145874A

CN112145874A - Adjustable rack structure

Info

Publication number: CN112145874A
Application number: CN202011029961.7A
Authority: CN
Inventors: 吴峰; 顾峰玮; 胡志超; 张冲; 谢焕雄; 张会娟
Original assignee: Nanjing Research Institute for Agricultural Mechanization Ministry of Agriculture
Current assignee: Nanjing Research Institute for Agricultural Mechanization Ministry of Agriculture
Priority date: 2020-09-27
Filing date: 2020-09-27
Publication date: 2020-12-29

Abstract

The invention discloses an adjustable rack structure, which comprises a main rack and an auxiliary rack, wherein two groups of adjusting mechanisms are connected between the main rack and the auxiliary rack; the adjusting mechanism comprises a fixed sleeve, a fixed shaft and an adjusting piece, one of the fixed sleeve and the fixed shaft is fixedly arranged on the main frame, and the other one is connected with the auxiliary frame; the adjusting part is provided with a shaft body part and a sleeve body part, the axial directions of the shaft body part and the sleeve body part are mutually vertical, the shaft body part and the sleeve body part respectively form two groups of rotating sleeving structures with the fixed sleeve and the fixed shaft, and the two parts forming each group of rotating sleeving structures can be adjusted in relative axial positions and fixed relatively. According to the invention, two groups of adjusting mechanisms are arranged between the main frame and the auxiliary frame, each group of adjusting mechanisms is provided with two groups of rotating sleeving structures, and each rotating sleeving structure has a rotating freedom degree and a sliding freedom degree, so that relatively accurate adjustment and correction of relative poses between the main frame and the auxiliary frame can be realized.

Description

Adjustable rack structure

Technical Field

The invention relates to the technical field of machinery, in particular to an adjustable rack structure.

Background

In the mechanical production era, various machines play an important role in production and life, some machines have a plurality of functional components capable of executing different tasks, the relative position of the functional components needs to be adjusted, and sometimes the relative pose needs to be corrected accurately.

Disclosure of Invention

The purpose of the invention is as follows: in order to overcome the defects in the prior art, the invention provides an adjustable rack structure which is simple in structure, low in cost and convenient to operate.

The technical scheme is as follows: in order to achieve the purpose, the adjustable rack structure comprises a main rack and an auxiliary rack, wherein two groups of adjusting mechanisms are connected between the main rack and the auxiliary rack;

the adjusting mechanism comprises a fixed sleeve, a fixed shaft and an adjusting piece; one of the fixed sleeve and the fixed shaft is fixedly arranged on the main frame, and the other one is connected with the auxiliary frame;

the adjusting part is provided with a shaft body part and a sleeve body part, the axial directions of the shaft body part and the sleeve body part are mutually perpendicular, the shaft body part and the sleeve body part respectively form two groups of rotating sleeving structures with the fixed sleeve and the fixed shaft, and the two parts forming each group of rotating sleeving structures can be adjusted in relative axial positions and fixed relatively.

Furthermore, a first fixing plate and a second fixing plate which are offset from one end of the corresponding component are respectively fixed on the fixing sleeve and the sleeve body part;

correspondingly, the fixed shaft and the shaft body part are respectively provided with a first rod part and a second rod part which extend out along the axial direction of the corresponding parts and can be respectively fixed relative to the first fixing plate and the second fixing plate.

Furthermore, through holes for the first rod part and the second rod part to pass through are formed in the first fixing plate and the second fixing plate respectively;

threads are formed on the outer walls of the first rod part and the second rod part;

two sides of the first fixing plate abut against nuts in threaded pair fit with the first rod part;

and two sides of the second fixing plate abut against nuts in threaded pair fit with the second rod part.

Furthermore, a connecting part is fixed on the auxiliary frame, and the connecting part is provided with a plurality of connecting holes which are vertically arrayed;

one of the fixed sleeve and the fixed shaft which is connected with the auxiliary frame is connected with the connecting part through a certain connecting hole.

Further, the middle side of the upper end of the main frame is connected with the middle side of the upper end of the auxiliary frame through a telescopic adjusting assembly;

the mounting positions of the two groups of adjusting mechanisms are lower than the telescopic adjusting assemblies, and the three adjusting mechanisms are in a triangular layout.

Furthermore, the telescopic adjusting assembly comprises a first screw and a second screw which are respectively and rotatably connected with the main frame and the auxiliary frame;

the telescopic adjusting assembly further comprises a hollow rod, and nuts matched with the first screw rod and the second screw rod are fixed at two ends of the hollow rod respectively.

Furthermore, a rotating handle is fixedly arranged on the hollow rod.

Furthermore, a hanging mechanism is installed on the main frame.

Has the advantages that: the adjustable rack structure is simple in structure, low in cost and convenient to operate, and is suitable for machines with a plurality of different functional components and with relative adjustment requirements among the different functional components.

Drawings

FIG. 1 is a first perspective view of an adjustable frame structure;

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

FIG. 3 is a second perspective view of the adjustable housing structure;

fig. 4 is a partial structural view of an adjustment mechanism in another embodiment.

In the figure: 1-a main frame; 11-rib plate; 12-a second hitching hole; 2-a sub-frame; 21-a connecting part; 22-connecting hole; 3-an adjusting mechanism; 31-a fixation sleeve; 32-a fixed shaft; 33-an adjustment member; 331-a shaft portion; 332-a sleeve portion; 333-a second fixing plate; 334-a second shank; 34-a first fixing plate; 35-a first stem portion; 36-clasping hoop; 37-a tension bar; 38-an eccentric shaft; 381-eccentric portion; 382-shaft end; 39-a handle; 391-stop groove; 310-a sleeve; 4-a telescopic adjustment assembly; 41-a first screw; 42-a second screw; 43-hollow rod; 44-a turning handle; 5-a hanging mechanism; 51-a connecting frame; 52-hanging seat; 521-a first hitching hole; 53-first bar-shaped connecting piece; 54-second strip-shaped connecting piece.

Detailed Description

The present invention will be further described with reference to the accompanying drawings.

The adjustable rack structure shown in fig. 1 and fig. 3 includes a main rack 1 and an auxiliary rack 2, the auxiliary rack 2 is disposed at the rear side of the main rack 1, and two sets of adjusting mechanisms 3 and a set of telescopic adjusting components 4 are connected therebetween, wherein the middle side of the upper end of the main rack 1 is connected with the middle side of the upper end of the auxiliary rack 2 through the telescopic adjusting components 4; the mounting positions of the two groups of adjusting mechanisms 3 are lower than the telescopic adjusting components 4; two sets of adjustment mechanism 3 and flexible adjusting part 4 three are the triangle-shaped overall arrangement, so, have three tie point between auxiliary frame 2 and the main frame 1, can keep the stability and the reliability of auxiliary frame 2 installation.

The adjusting mechanism 3 includes a fixing sleeve 31, a fixing shaft 32 and an adjusting member 33, one of the fixing sleeve 31 and the fixing shaft 32 is fixedly mounted on the main frame 1, and the other is connected to the auxiliary frame 2, in the illustrated embodiment, the fixing sleeve 31 is fixed on the main frame 1, the axial direction of the fixing sleeve is the front-back direction, and the fixing shaft 32 is connected to the auxiliary frame 2, and the axial direction of the fixing sleeve is the up-down direction.

As shown in fig. 2, the adjusting member 33 includes a shaft portion 331 and a sleeve portion 332, axial directions of the shaft portion 331 and the sleeve portion 332 are perpendicular to each other, and the shaft portion 331 and the sleeve portion 332 respectively form two sets of rotating sleeving structures with the fixed sleeve 31 and the fixed shaft 32, and two components forming each set of the rotating sleeving structures can be adjusted in relative axial position and fixed relatively, that is, two components forming each set of the rotating sleeving structures have two adjusting dimensions, a first one is rotation adjustment, and a second one is axial relative position adjustment.

A connecting part 21 is fixed on the auxiliary frame 2, and the connecting part 21 is provided with a plurality of connecting holes 22 arranged in a vertical linear array; the fixed shaft 32 is connected with the connecting part 21 through one of the connecting holes 22, and the fixed shaft 32 and the connecting part 21 are in a rotating connection relationship. The fixing shaft 32 can be replaced by replacing the attachment hole 22 to achieve a rough adjustment of the installation height of the sub-frame 2.

Specifically, the fixing sleeve 31 and the sleeve part 332 are respectively fixed with a first fixing plate 34 and a second fixing plate 333 which are offset from one end of the corresponding component; the fixing sleeve 31 is fixedly welded between the two rib plates 11 on the main frame 1, the two rib plates 11 extend out of the extension parts of the main frame 1, the fixing sleeve 31 is fixed between the two extension parts of the two rib plates 11, and the first fixing plate 34 is also fixedly welded between the two rib plates 11, so that the connecting stability of the fixing sleeve 31 and the first fixing plate 34 relative to the rib plates 11 can be maintained. Two wing plates extend from two sides of the second fixing plate 333, the two wing plates are welded and fixed on the sleeve part 332, and the second fixing plate 333 and the wing plates at the two sides are in a U-shaped whole.

Correspondingly, the fixed shaft 32 and the shaft body 331 are respectively formed with a first rod portion 35 and a second rod portion 334 which extend in the axial direction of the respective members and are respectively fixed to the first fixing plate 34 and the second fixing plate 333. Through holes for the first rod part 35 and the second rod part 334 to pass through are respectively formed on the first fixing plate 34 and the second fixing plate 333; the outer walls of the first rod part 35 and the second rod part 334 are both provided with threads; both sides of the first fixing plate 34 abut against nuts in thread pair fit with the first rod part 35; both sides of the second fixing plate 333 abut against nuts which are screw-mated with the second rod portion 334.

Since the first and

second fixing plates

34 and 333 are offset from the end surfaces of the fixing sleeve 31 and the sleeve body portion 332, a nut screwing operation space is provided between the first fixing plate 34 and the fixing sleeve 31, and a nut screwing operation space is also provided between the second fixing plate 333 and the fixing sleeve 31.

By adopting the structure, the relative positions of the two parts forming each group of the rotary sleeving structure can be adjusted by adjusting the positions of the nuts on the first rod part 35 and the second rod part 334, specifically, the front and back positions of the auxiliary frame 2 relative to the main frame 1 can be adjusted by adjusting the two shaft parts 331 to move in the same direction relative to the corresponding fixed sleeves 31, and the up and down heights of the auxiliary frame 2 can be adjusted by adjusting the two sleeve parts 332 to move in the same direction relative to the corresponding fixed shafts 32; the relative angle of the auxiliary frame 2 relative to the main frame 1 in the top view direction can be finely adjusted by adjusting one of the shaft portions 331 to move relative to its corresponding fixing sleeve 31, or by adjusting the two shaft portions 331 to move in opposite directions relative to their corresponding fixing sleeves 31; the relative angle of the auxiliary frame 2 relative to the main frame 1 in the front-back front-view direction can be finely adjusted by adjusting one of the sleeve parts 332 to move relative to the corresponding fixed shaft 32, or by adjusting the two sleeve parts 332 to move in opposite directions relative to the corresponding fixed shafts 32; in addition, by adjusting the effective length of the telescopic adjustment assembly 4, the pitch angle of the sub-frame 2 in the side view direction with respect to the main frame 1 can be adjusted. Therefore, through the connecting structure, the front-back and up-down position adjustment and the three-axis angle adjustment of the auxiliary frame 2 relative to the main frame 1 can be realized, and the adjustment is convenient.

In another embodiment, since the position adjustment operation by screws on the first rod portion 35 and the second rod portion 334 is troublesome, preferably, as shown in fig. 4, a quick release mechanism is installed on each of the first rod portion 35 and the second rod portion 334, and the quick release mechanism includes two clasps 36, two tightening rods 37, an eccentric shaft 38 and a handle 39; for the quick release mechanism on the second rod portion 334, two clasps 36 are both serially sleeved on the second rod portion 334, the two clasps 36 are disposed on both sides of the second fixing plate 333, each clasp 36 is provided with a notch, and the two sides of the notch are tightened and loosened by a tightening rod 37 (one side of the notch is fixed relative to the second fixing plate 333, the tightening rod 37 acts on the other side of the notch), each tightening rod 37 is connected with a sleeve 310, the eccentric shaft 38 is provided with an eccentric portion 381 acting on the edge of the second fixing plate 333, both sides of the eccentric portion 381 are provided with shaft ends 382, the two shaft ends 382 are respectively rotatably connected with the two sleeves 310, the handle 39 is L-shaped, one end of the handle is rotatably mounted on one shaft end 382, the other end of the handle is provided with a stop groove 391, when the quick release mechanism is in a tightened state, both clasps 36 are in a clasped state, and both clasps 36 abut against the second fixing plate 333 to prevent the second rod portion 334 from axial shifting, and at this moment, a tightening rod 37 is embedded in the stop slot 391 to prevent the eccentric shaft 38 from rotating, when the position of the second rod part 334 relative to the second fixing plate 333 needs to be adjusted, the tightening rod 37 is made to be separated from the stop slot 391 by only rotating the handle 39, and then the handle 39 drives the eccentric shaft 38 to rotate, so that the two clasping hoops 36 can be loosened simultaneously, when the adjustment is completed, the tightening rod 37 is tightened by rotating the handle 39, and then one tightening rod 37 is embedded in the stop slot 391, so that the rapid adjustment can be carried out, and the use is convenient. For the quick release mechanism on the first rod portion 35, the two clasping hoops 36 are all serially sleeved on the first rod portion 35, the two clasping hoops 36 are disposed on two sides of the first fixing plate 34, the eccentric portion 381 of the eccentric shaft 38 acts on the edge of the first fixing plate 34, and other installation manners and use manners are the same as those of the quick release mechanism on the second rod portion 334, and are not described herein again.

Specifically, the telescopic adjusting assembly 4 includes a first screw 41 and a second screw 42 rotatably connected to the main frame 1 and the auxiliary frame 2, respectively; the telescopic adjusting assembly 4 further comprises a hollow rod 43, nuts respectively matched with the first screw rod 41 and the second screw rod 42 are respectively fixed at two ends of the hollow rod 43, and the rotation directions of the first screw rod 41 and the second screw rod 42 are opposite. So, through rotating hollow rod 43, can make first screw rod 41 and the part of second screw rod 42 both spiral shell income hollow rod 43 in lengthen in step or shorten in step, and when hollow rod 43 rotated the same angle, compare in single screw rod complex scheme, the flexible length of the flexible adjusting part 4 of double screw scheme of this scheme has two times, and operating efficiency has had showing the promotion. To facilitate the rotation of the hollow bar 43, a rotation handle 44 is fixedly mounted on the hollow bar 43.

In addition, a hitch mechanism 5 is attached to the front end of the main frame 1 in order to facilitate attachment of the main frame 1 to another structure. Specifically, as shown in fig. 3, the hooking mechanism 5 includes a connecting frame 51, the connecting frame 51 is in an inverted U shape, two open ends of the connecting frame 51 are rotatably installed on the main frame 1, a hooking base 52 is fixed on a top of the connecting frame 51, a first hooking hole 521 is formed in a front end of the hooking base 52, two second hooking holes 12 are symmetrically formed in the main frame 1, and the first hooking hole 521 and the two second hooking holes 12 are in a triangular layout. Because the two groups of adjusting mechanisms 3 are arranged in bilateral symmetry, the main frame 1 is provided with two groups of rib plates 11 in bilateral symmetry, and the two second hanging holes 12 are respectively formed on the left and right groups of rib plates 11 (each group of rib plates 11 comprises two rib plates 11). Two sides of the hanging seat 52 are respectively connected with rib plates 11 on two sides of the main frame 1 through first strip-shaped connecting pieces 53; in addition, since the fixing sleeve 31 is fixed between the two extending portions of the two rib plates 11, in order to prevent the rib plates 11 from deforming, each fixing sleeve 31 is connected with a second strip-shaped connecting member 54, one end of the second strip-shaped connecting member 54 is fixed on the fixing sleeve 31, and the other end is fixed in the middle of the corresponding first strip-shaped connecting member 53 on the side where the second strip-shaped connecting member is located in an overlapping manner. The connecting structure is stable and reliable, the hanging seat 52 and the fixing sleeve 31 are stably arranged relative to the main frame 1 by utilizing the connecting frame 51 and the strip-shaped connecting piece, the material consumption of the structural member is reduced, the weight of the frame is reduced, and the cost is low. When in use, the main frame 1 can be installed to the position where it needs to be installed through the first hitching hole 521 and the two second hitching holes 12, and the three hitching holes can effectively fix the main frame 1 and the external structure, and the fixing form is simple.

The adjustable rack structure is simple in structure, low in cost and convenient to operate, and is suitable for machines with a plurality of different functional components and with relative adjustment requirements among the different functional components.

The above description is only of the preferred embodiments of the present invention, and it should be noted that: it will be apparent to those skilled in the art that various modifications and adaptations can be made without departing from the principles of the invention and these are intended to be within the scope of the invention.

Claims

1. An adjustable rack structure is characterized by comprising a main rack (1) and an auxiliary rack (2), wherein two groups of adjusting mechanisms (3) are connected between the main rack and the auxiliary rack;

the adjusting mechanism (3) comprises a fixed sleeve (31), a fixed shaft (32) and an adjusting piece (33); one of the fixed sleeve (31) and the fixed shaft (32) is fixedly arranged on the main frame (1), and the other one is connected with the auxiliary frame (2);

the adjusting part (33) is provided with a shaft part (331) and a sleeve body part (332), the axial directions of the shaft part (331) and the sleeve body part (332) are mutually perpendicular, the shaft parts and the sleeve body part respectively form two groups of rotating sleeving structures with the fixed sleeve (31) and the fixed shaft (32), and the two parts forming each group of rotating sleeving structures can be adjusted in relative axial positions and fixed relatively.

2. The adjustable frame structure according to claim 1, wherein said fixed sleeve (31) and said sleeve portion (332) have respectively fixed thereto a first fixing plate (34) and a second fixing plate (333) offset from one end of the respective member;

correspondingly, the fixed shaft (32) and the shaft body (331) are respectively provided with a first rod part (35) and a second rod part (334) which extend along the axial direction of the corresponding parts and can be respectively fixed relative to the first fixing plate (34) and the second fixing plate (333).

3. The adjustable frame structure according to claim 2, wherein the first fixing plate (34) and the second fixing plate (333) are respectively formed with through holes for the first rod portion (35) and the second rod portion (334) to pass through;

threads are formed on the outer walls of the first rod part (35) and the second rod part (334);

both sides of the first fixing plate (34) abut against nuts which are in thread pair fit with the first rod part (35);

both sides of the second fixing plate (333) abut against nuts which are in thread pair fit with the second rod part (334).

4. The adjustable frame structure according to claim 1, wherein a connecting part (21) is fixed on the sub-frame (2), and the connecting part (21) is provided with a plurality of connecting holes (22) arranged in a vertical array;

one of the fixed sleeve (31) and the fixed shaft (32) which is connected with the auxiliary frame (2) is connected with the connecting part (21) through a certain connecting hole (22).

5. An adjustable frame structure according to claim 1, characterized in that the upper middle side of the main frame (1) and the upper middle side of the auxiliary frame (2) are connected by a telescopic adjusting assembly (4);

the mounting positions of the two groups of adjusting mechanisms (3) are lower than the telescopic adjusting components (4), and the three are in a triangular layout.

6. An adjustable frame structure according to claim 5, wherein the telescopic adjustment assembly (4) comprises a first screw (41) and a second screw (42) rotatably connected to the main frame (1) and the auxiliary frame (2), respectively;

the telescopic adjusting assembly (4) further comprises a hollow rod (43), and nuts matched with the first screw rod (41) and the second screw rod (42) are respectively fixed at two ends of the hollow rod (43).

7. An adjustable frame structure according to claim 6, wherein a turning handle (44) is fixedly mounted on the hollow bar (43).

8. An adjustable frame structure according to any one of claims 1-7, wherein a hitch mechanism (5) is mounted on the main frame (1).