CN211931240U

CN211931240U - Lifting arm connecting device of forced pressure lifter

Info

Publication number: CN211931240U
Application number: CN202020342587.5U
Authority: CN
Inventors: 王兆华; 李松燕; 于家福; 王松浩
Original assignee: Shandong Hongyu Agricultural Machinery Co ltd
Current assignee: Shandong Hongyu Agricultural Machinery Co ltd
Priority date: 2020-03-18
Filing date: 2020-03-18
Publication date: 2020-11-17
Anticipated expiration: 2030-03-18

Abstract

The utility model provides a lifting arm connecting device of forced draft riser, including riser main part and pivot, the pivot is passed through the dead eye traversing riser main part of riser main part both sides and is connected rather than rotating, the vertical groove that has seted up of pivot intermediate position, the upper and lower two sides in groove communicate with each other with the tank bottom that leads to the groove that corresponds respectively, it is connected with the gear to pass through the groove middle bearing, the gear meshes with the rack of upper and lower both sides simultaneously, the double-screw bolt is installed to the screw thread in the screw thread through-hole respectively the screw thread, the double-screw bolt is located logical groove inner chamber one end fixedly connected with briquetting, preceding of briquetting, back and the one side of the double-screw bolt that dorsad leads to the groove respectively with the. This strong pressure lifting mechanism only changes the pivot that promotes the arm and be used for installing the lift arm, and most parts can directly utilize current traditional strong pressure lifting mechanism, and the manufacturing degree of difficulty is lower, is fit for promoting in strong pressure lifting mechanism production field.

Description

Lifting arm connecting device of forced pressure lifter

Technical Field

The utility model belongs to the field of the strong pressure lifting mechanism is manufactured, specifically speaking is a lifting arm connecting device of strong pressure lifting mechanism.

Background

The strong pressure lifting mechanism is one of the common accessories of a traction tractor, the strong pressure lifting mechanism is mostly driven by a tractor engine to form an oil pump, a hydraulic cylinder is utilized to push a matched connecting rod and a rotating shaft, thereby lifting arms on two sides are driven to lift or fall down, the lifting arms are used for installing and connecting agricultural machinery needing to be pulled, the two lifting arms of the existing strong pressure lifting mechanism are mostly fixedly installed on the connecting rotating shaft, the distance between the two lifting arms can not be adjusted, the adaptability of the traction agricultural machinery for different sizes and models is not good, the distance between the lifting arms is adjustable, and the novel strong pressure lifting mechanism is strong in adaptability to the traction agricultural machinery with different sizes.

SUMMERY OF THE UTILITY MODEL

The utility model provides a lifting arm connecting device of strong pressure raiser for solve the defect among the prior art.

The utility model discloses a following technical scheme realizes:

the utility model provides a lifting arm connecting device of strong pressure lifting mechanism, includes lifting mechanism main part and pivot, the pivot is connected with its rotation through the bearing hole traversing lifting mechanism main part of lifting mechanism main part both sides, and power device in the lifting mechanism main part is connected and drives the pivot through articulated seat and rotates characterized in that with the pivot: the upper end and the lower end of the periphery of the rotating shaft are respectively and transversely provided with a through groove, two sides of the rotating shaft are respectively provided with a lifting arm, one end of each lifting arm, which is close to the rotating shaft, is respectively provided with a through hole, the lifting arms are respectively sleeved on the peripheries of two sides of the rotating shaft through the through holes, the upper end of the inner wall of the through hole on one lifting arm is fixedly provided with a rack, the lower end of the inner wall of the through hole on the other lifting arm is provided with a threaded through hole, the front end and the rear end of the inner wall of the through hole are respectively in sliding fit with the corresponding surfaces of the through grooves, the lower end of the inner wall of the through hole on the other lifting arm is fixedly provided with the rack, the upper end and the lower end of the rotating shaft are vertically provided with a through groove, the upper surface and the lower surface, the front, the back and the side back to the stud of the pressing block are respectively in contact fit with the corresponding surfaces of the through grooves, and one end, far away from the pressing block, of the stud is fixedly connected with a knob.

According to the lifting arm connecting device of the strong pressure lifter, connecting holes are respectively formed in one ends, far away from the rotating shaft, of the lifting arms.

According to the lifting arm connecting device of the forced pressure lifter, the side, back to the stud, of the pressing block is provided with the sawtooth-shaped anti-slip lines respectively, and the bottom surface of the through groove is also provided with the sawtooth-shaped anti-slip lines.

According to the lifting arm connecting device of the forced lifter, the periphery of the knob is wrapped with the anti-slip rubber.

According to the lifting arm connecting device of the high-pressure lifter, the racks are all positioned in the corresponding through grooves except for the connecting part of the racks and the inner wall of the corresponding through hole.

The utility model has the advantages that: when the lifting arm spacing adjusting device is used, a user firstly adjusts the spacing between two lifting arms according to an agricultural machine to be pulled, when the user pushes or pulls one lifting arm along a rotating shaft, a rack on the lifting arm can drive a gear to rotate, the gear drives the other rack to move transversely, so as to drive the other lifting arm to move, due to the matching effect of the rack and the gear, the moving directions of the two lifting arms are always reverse and equidistant, when the user adjusts the lifting arm spacing, the lifting arms can be always symmetrically distributed by taking the middle point of the rotating shaft as a reference, the agricultural machine connected with the lifting arms can be ensured to be aligned with a lifter main body, after the spacing between the lifting arms is adjusted, the user needs to screw a stud through a knob, so that a pressing block is pressed on the bottom surface of a groove of a through groove, after the pressing, the lifting arms can be fixed on the rotating shaft and can not slide along the axial direction continuously, and then, when a user uses the lifter main body to drive the rotating shaft to rotate, the rotating shaft can drive the lifting arms on the two sides to rotate together due to the matching effect of the racks, the pressing blocks and the through grooves on the lifting arms, so that the function of lifting or putting down the traction agricultural machinery is realized; this device can ensure the lifting arm of both sides centering all the time when realizing lifting arm interval adjustable, avoid agricultural machinery and tractor to take place the skew, only need remove one of them lifting arm, another lifting arm also can link together, work load when having alleviateed user's adjustment lifting arm interval greatly, this strong pressure lifting mechanism only changes the pivot of lifting arm with being used for installing the lifting arm, most parts can directly utilize current traditional strong pressure lifting mechanism, the manufacturing degree of difficulty is lower, be fit for promoting in strong pressure lifting mechanism production field.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive labor.

Fig. 1 is a schematic structural diagram of the present invention; fig. 2 is a right side view of the present invention; fig. 3 is a partially enlarged view of the region i of fig. 2.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

The utility model provides a lifting arm connecting device of strong pressure lifting mechanism, as shown in the figure, including lifting mechanism main part 1 and

pivot

2, 2 pivot are connected with its rotation through 1 bearing hole traversing lifting mechanism main part 1 of lifting mechanism main part both sides, power device in the lifting mechanism main part 1 is connected and drives pivot 2 through articulated seat and pivot 2 and rotate, lifting mechanism main part 1 adopts common strong pressure lifting mechanism major structure, it rotates to utilize the pneumatic cylinder to drive pivot 2 through articulated mode, thereby pivot 2 drives again and installs the lifting arm rotation of 2 both sides in the pivot and will install agricultural machinery on the lifting arm and mention or put down, strong pressure lifting mechanism is current mature technology, its concrete structure and theory of operation are no longer repeated here, characterized in that: through grooves 21 are respectively transversely formed in the upper end and the lower end of the periphery of the rotating shaft 2, the through grooves 21 are respectively communicated with the end faces of two sides of the rotating shaft 2, lifting arms 3 are respectively arranged on two sides of the rotating shaft 2, through holes 31 are respectively formed in one end, close to the rotating shaft 2, of each lifting arm 3, the lifting arms 3 are sleeved on the peripheries of two sides of the rotating shaft 2 through the through holes 31, the through holes 31 are in sliding fit with the periphery of the rotating shaft 2, racks 32 are fixedly arranged at the upper ends of the inner walls of the through holes 31 in one of the lifting arms 3, threaded through holes 33 are formed in the lower ends of the inner walls of the through holes 31, one end top surfaces of the racks 32 are fixedly connected with the inner walls of the through holes 31, the other ends of the racks 32 face the bottoms of the through grooves 21 and are in sliding fit with corresponding surfaces of, The upper end of the lifting arm is provided with a threaded through hole 33, the positions of the racks 32 and the threaded through holes 33 on the two lifting arms 3 are reversed, the middle position of the rotating shaft 2 is vertically provided with a through groove 22, the upper surface and the lower surface of the through groove 22 are respectively communicated with the groove bottoms of the corresponding through grooves 21, a gear 23 is connected to the middle of the through groove 22 in a bearing mode, bearing holes are respectively formed in the front side and the rear side of the through groove 22, the wheel shaft of the gear 23 is respectively rotatably connected with the corresponding bearing holes, the gear 23 is simultaneously meshed with the racks 32 on the upper side and the lower side, studs 4 are respectively and threadedly installed in the threaded through holes 33, one end, located in the inner cavity of the through groove 21, of each stud 4 is fixedly connected with a pressing block 41, the front surface, the rear surface. When the space between the two lifting arms 3 is adjusted by a user according to an agricultural machine to be pulled, when the user pushes or pulls one of the lifting arms 3 along the rotating shaft 2, the rack 32 on the lifting arm 3 drives the gear 23 to rotate, the gear 23 drives the other rack 32 to transversely move, so as to drive the other lifting arm 3 to move, due to the matching effect of the rack 32 and the gear 23, the moving directions of the two lifting arms 3 are always reverse and equidistant, when the user adjusts the space between the lifting arms 3, the lifting arms 3 are always symmetrically distributed by taking the middle point of the rotating shaft 2 as a reference, so that the agricultural machine connected with the lifting arms 3 can be also aligned with the lifter main body 1, after the space between the lifting arms 3 is adjusted, the user needs to screw the stud 4 through the knob 42, so that the pressing block 41 is pressed on the bottom surface of the through groove 21, and the lifting arms 3 can be fixed on the rotating shaft 2 and can not continuously slide, then, a user can connect an agricultural machine to be towed to the lifting arm 3 for normal operation, and when the user uses the lifter body 1 to drive the rotating shaft 2 to rotate, the rotating shaft 2 can drive the lifting arms 3 on the two sides to rotate together due to the matching effect of the rack 32 and the pressing block 41 on the lifting arms 3 and the through groove 21, so that the function of lifting or lowering the towed agricultural machine is realized; this device can ensure the lifting arm 3 of both sides centering all the time when realizing 3 interval adjustable lifting arms, avoid agricultural machinery and traction tractor to take place the skew, only need remove one of them lifting arm 3, another lifting arm 3 also can link together, work load when having alleviateed the 3 intervals of user's adjustment lifting arm greatly, this strong pressure lifting mechanism only changes lifting arm 3 and pivot 2 that is used for installing lifting arm 3, most parts can directly utilize current traditional strong pressure lifting mechanism, the manufacturing degree of difficulty is lower, be fit for promoting in strong pressure lifting mechanism production field.

Specifically, as shown in fig. 1, connection holes are respectively formed at ends of the lifting arms 3 far away from the rotating shaft 2. The connecting hole is used for connecting and installing agricultural machinery needing to be towed to use on the lifting arm 3, and the other structures of the lifting arm 3 in the device except the part connected with the rotating shaft 2 are the same as those of the lifting arm in a common strong pressure lifter.

Specifically, as shown in fig. 1, the surface of the pressing block 41 facing away from the stud 4 is provided with saw-toothed anti-slip patterns, and the bottom surface of the through groove 21 is also provided with saw-toothed anti-slip patterns. When the pressing block 41 is pressed against the bottom surface of the through groove 21 by the stud 4, the pressing block 41 and the saw-toothed anti-slip threads on the through groove 21 are meshed with each other, so that the friction force between the pressing block 41 and the through groove 21 is increased, the pressing block 41 is prevented from sliding left and right along the direction of the through groove 21, and the lifting arm 3 provided with the pressing block 41 and the stud 4 is fixed on the rotating shaft 2.

Further, as shown in fig. 1, the knob 42 of the present embodiment is wrapped with anti-slip rubber. This structure can increase the frictional force between user's palm and the knob 42, and the user of being convenient for compresses tightly the briquetting 41 through twisting knob 42 and is fixed in leading to the groove 21 in.

Further, as shown in fig. 1, the racks 32 according to the present embodiment are located inside the corresponding through slots 21 except for the connecting portions of the racks 32 with the inner walls of the corresponding through holes 31. If the rack 32 protrudes from the outer circumferential surface of the rotary shaft 2, the rack 32 may interfere with other components in the lifter body 1 when the rotary shaft 2 rotates, resulting in malfunction or damage of the apparatus.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.

Claims

1. The utility model provides a lifting arm connecting device of strong pressure lifting mechanism, includes lifting mechanism main part (1) and pivot (2), pivot (2) are connected through articulated seat and pivot (2) and are connected and drive pivot (2) rotation that the dead eye of lifting mechanism main part (1) both sides transversely passes lifting mechanism main part (1) and rotates rather than, power device in lifting mechanism main part (1): the upper end and the lower end of the periphery of the rotating shaft (2) are respectively and transversely provided with a through groove (21), the two sides of the rotating shaft (2) are respectively provided with a lifting arm (3), one end of each lifting arm (3) close to the rotating shaft (2) is respectively provided with a through hole (31), the lifting arms (3) are respectively sleeved on the peripheries of the two sides of the rotating shaft (2) through the through holes (31), the upper end of the inner wall of the through hole (31) on one lifting arm (3) is fixedly provided with a rack (32), the lower end of the inner wall of the through hole (31) on the other lifting arm (3) is provided with a threaded through hole (33), the front surface and the rear surface of the rack (32) face the groove to the groove bottom of the through groove (21) are in sliding fit, the upper end and the upper end of the through groove (22) are vertically arranged in the middle position of the rotating shaft (2), the upper surface and the lower surface, through groove (22) middle bearing is connected with gear (23), gear (23) mesh with rack (32) of upper and lower both sides simultaneously, threaded stud (4) are installed to the screw thread in through-hole (33) respectively the screw thread, screw stud (4) are located logical groove (21) inner chamber one end fixedly connected with briquetting (41), the preceding of briquetting (41), back and be directed against stud (4) one side respectively with the corresponding face contact cooperation that leads to groove (21), briquetting (41) one end then fixedly connected with knob (42) are kept away from in screw stud (4).

2. A lifting arm attachment for a high pressure riser as claimed in claim 1, wherein: and one end of the lifting arm (3) far away from the rotating shaft (2) is respectively provided with a connecting hole.

3. A lifting arm attachment for a high pressure riser according to claim 1 or 2, characterised in that: the side, back to the stud (4), of the pressing block (41) is provided with sawtooth-shaped anti-slip lines respectively, and the bottom surface of the through groove (21) is also provided with the sawtooth-shaped anti-slip lines.

4. A lifting arm attachment for a high pressure riser according to claim 3, wherein: the periphery of the knob (42) is wrapped with anti-skid rubber.

5. A lifting arm attachment for a high pressure riser according to claim 4, wherein: except for the connecting part of the rack (32) and the inner wall of the corresponding through hole (31), the rack (32) is positioned in the corresponding through groove (21).