阅读说明：本技术 一种手动摩擦控制力度的果实采摘机 (Fruit picking machine with manual friction control force ) 是由 淮旭鸽 朱伟 匡兵 庄未 黄用华 梁才航 刘海浪 于 2021-10-26 设计创作，主要内容包括：本发明公开一种手动摩擦控制力度的果实采摘机,包括机架合件、传动杆、动力传动系统、力的调整机构和抓握结构,还包括自锁机构；其中,机架合件由中空长管和刚性支撑板固定连接而成；动力传动系统包括手轮、轴承座、输入轴、轴承、摩擦轮和摩擦传动片；力的调整机构包括固定座、支撑螺钉和活动支撑杆。工作时,转动手轮,在摩擦力的作用下,摩擦传动片前进,使三夹爪打开放入果实；放入后反方向转动手轮,在摩擦力的作用下,摩擦传动片后退,使三夹爪逐渐闭合,果实被捕获。此外,当手轮上没有力矩输入时,自锁机构可防止采摘苹果中的夹持力消失。本发明不仅结构相对简单、手持式采摘使用方便,而且降低了采摘果实的损伤率,提高了经济效益。(The invention discloses a fruit picking machine with manual friction force control, which comprises a rack assembly, a transmission rod, a power transmission system, a force adjusting mechanism, a gripping structure and a self-locking mechanism, wherein the self-locking mechanism is arranged on the rack assembly; wherein, the frame assembly is formed by fixedly connecting a hollow long pipe and a rigid support plate; the power transmission system comprises a hand wheel, a bearing seat, an input shaft, a bearing, a friction wheel and a friction transmission sheet; the force adjusting mechanism comprises a fixed seat, a supporting screw and a movable supporting rod. When the fruit placing device works, the hand wheel is rotated, the friction transmission sheet moves forward under the action of friction force, and the three clamping jaws are opened to place fruits; after the fruit is placed in the box, the hand wheel is rotated in the opposite direction, and under the action of friction force, the friction driving sheet retreats, so that the three clamping jaws are gradually closed, and the fruit is captured. In addition, when no moment is input on the hand wheel, the self-locking mechanism can prevent the clamping force in apple picking from disappearing. The hand-held fruit picking device is relatively simple in structure and convenient to use in hand-held picking, reduces the damage rate of picked fruits and improves economic benefits.)

1. A fruit picking machine with manual friction force control is characterized by comprising a frame assembly (9), a transmission rod (11), a power transmission system, a force adjusting mechanism and a gripping structure;

the frame assembly (9) is formed by fixedly connecting a hollow long pipe and a rigid supporting plate;

the power transmission system comprises: comprises a hand wheel (1), a bearing seat (2), an input shaft (7), a bearing (8), a friction wheel (21) and a friction driving sheet (10);

one end of the input shaft (7) is connected with the hand wheel (1), and the other end of the input shaft is connected with the friction wheel (21);

the edge of the friction wheel (21) extends into the opening of the frame assembly (9) and is in pressure contact with the friction driving sheet (10);

the bearing (8) is fixed on the bearing seat (2), and the bearing seat (2) is fixed on the rigid support plate;

the transmission rod (11) is axially and fixedly connected with the friction transmission sheet (10) in the hollow long pipe;

the force adjustment mechanism: comprises a fixed seat (18), a supporting screw (19) and a movable supporting rod (20);

the fixing seat (18) is fixed on the hollow long tube, the movable support rod (20) is arranged in the middle of the fixing seat (18), and the fixing seat (18) limits the axial freedom degree of the movable support rod (20) in the hollow long tube;

the supporting screw (19) is in threaded connection with the frame assembly (9) and controls the radial position of the supporting rod (20) in the hollow long pipe.

2. The manual friction force controlled fruit picker according to claim 1, wherein: the picking machine further comprises a self-locking mechanism, wherein the self-locking mechanism comprises a shifting handle (4), a shifting shaft (5), a shaft sleeve (6), a cam (22) and a brake pad (23);

the shaft sleeve (6) is fixed on the bearing seat (2) and is in clearance fit connection with the shifting shaft (5), and the other end of the shifting shaft (5) is connected with the cam (22);

the toggle handle (4) is uneven in mass, fixed on the toggle shaft (5) and generates a moment for enabling the cam (22) to be in contact with the friction driving piece (10) under the action of gravity;

the brake pad (23) is fixed on the fixed seat (18) and is aligned with the position of the cam (22).

3. The manual friction force fruit picker according to claim 2, wherein: the self-locking mechanism further comprises a hoop clamping column (3) used for fixing the toggle handle (4), and the hoop clamping column (3) is fixed on a rigid supporting plate of the rack assembly (9).

4. A manual friction force controlled fruit picker according to claim 3 wherein: the end part of the upper cylinder of the toggle handle (4) is provided with a balance weight for increasing the pressure among the cam (22), the friction transmission piece (10) and the brake pad (23).

5. A manual friction force controlled fruit picker according to any one of claims 1 to 4 wherein: the gripping structure comprises a support rod (12), a movable claw (13) and a three-clamping jaw (14);

one end of the support rod (12) is connected with the hollow long tube at a fixed angle, and the other end of the support rod (12) is movably connected with the three clamping jaws (14); the transmission rod (11) is fixedly connected with the movable claw (13).

6. The manual friction force fruit picker according to claim 5, wherein: and a protective pad (15) is arranged on the contact surface of the three clamping jaws (14) and the fruit.

7. A friction force controlled fruit picker according to claim 1, wherein: a sliding sleeve (17) is arranged at the port of the hollow long pipe close to the side of the gripping structure.

Technical Field

The invention relates to the technical field of fruit picking, in particular to a fruit picking machine with manual friction control force.

Background

According to the existing developed manual apple picking machine, the clamping force generated by the grasping structure cannot be accurately controlled, and when the size of fruits changes, the clamping force is changed, so that the picked fruits are easily damaged, and the existing fruit picking requirements cannot be met.

Disclosure of Invention

In view of the above-mentioned shortcomings of the prior art, the present invention provides a fruit picking machine with manual friction control.

In order to solve the technical problems, the technical scheme adopted by the invention is as follows: a fruit picking machine with manual friction force control comprises a frame assembly, a transmission rod, a power transmission system, a force adjusting mechanism and a gripping structure;

the frame assembly is formed by fixedly connecting a hollow long pipe and a rigid supporting plate;

the power transmission system comprises: comprises a hand wheel, a bearing seat, an input shaft, a bearing, a friction wheel and a friction driving sheet;

one end of the input shaft is connected with the hand wheel, and the other end of the input shaft is connected with the friction wheel;

the edge of the friction wheel extends into the opening of the frame assembly and is in pressure contact with the friction transmission piece;

the bearing is fixed on the bearing seat, and the bearing seat is fixed on the rigid support plate;

the transmission rod and the friction transmission sheet are axially and fixedly connected in the hollow long pipe;

the force adjustment mechanism: comprises a fixed seat, a supporting screw and a movable supporting rod;

the fixed seat is fixed on the hollow long tube, the movable support rod is arranged in the middle of the fixed seat, and the fixed seat limits the axial degree of freedom of the movable support rod in the hollow long tube;

the supporting screw is in threaded connection with the frame assembly to control the radial position of the supporting rod in the hollow long tube.

Further, the picking machine further comprises a self-locking mechanism, wherein the self-locking mechanism comprises a shifting handle, a shifting shaft, a shaft sleeve, a cam and a brake pad;

the shaft sleeve is fixed on the bearing seat and is in clearance fit connection with the shifting shaft, and the other end of the shifting shaft is connected with the cam;

the shifting handle is fixed on the shifting shaft, and generates a torque for contacting the cam with the friction driving sheet under the action of gravity;

the brake pad is fixed on the fixed seat and aligned with the position of the cam.

Furthermore, self-locking mechanism still includes the clamp post that is used for fixed handle of stirring, the clamp post is fixed on the rigid support plate of frame closes the piece.

Furthermore, the end part of the upper cylinder of the toggle handle is provided with a balance weight for increasing the pressure among the cam, the friction driving piece and the brake pad.

Further, the gripping structure comprises a support rod, a movable claw and three clamping jaws;

one end of the supporting rod is connected with the hollow long pipe at a fixed angle, and the other end of the supporting rod is movably connected with the three clamping jaws; the transmission rod is fixedly connected with the movable claw.

Furthermore, a protective pad is arranged on the contact surface of the three clamping jaws and the fruit.

Further, a sliding sleeve is arranged at the port of the hollow long pipe close to the side of the gripping structure.

Adopt the produced beneficial effect of above-mentioned technical scheme to lie in:

1. the fruit picking machine with manual friction control force provided by the invention has the advantages of relatively simple structure, convenient handheld picking and use, and good practicability and economy.

2. The invention utilizes the friction principle to realize the adjustment of the clamping force of the picked fruits by adjusting the friction force, thereby achieving the technical effect of controllable fruit clamping force.

3. The invention solves the problem that the clamping force of picked fruits disappears when no moment is input on the hand wheel by utilizing the self-locking function of the cam mechanism. And when the fruit picking machine is positioned at any position, the self-locking mechanism of the force can be effective.

4. The fruit picking machine with manual friction control force provided by the invention reduces the damage rate of picked fruits and improves the income and economic benefits of fruit growers.

Drawings

Fig. 1 is a schematic view of the overall structure of a fruit picking machine with manual friction control force according to an embodiment of the invention;

FIG. 2 is a detail view of a fruit picker with manual friction control force according to an embodiment of the present invention;

FIG. 3 is a schematic view of the position of the sliding sleeve near the port on the side of the gripping structure according to an embodiment of the present invention;

the device comprises a handle, a hand wheel, a bearing seat, a hoop column, a driving handle, a driving shaft, a shaft sleeve, a bearing, a frame assembly, a friction driving piece, a driving rod, a supporting rod, a movable claw, a clamping jaw, a protective pad, a fruit, a sliding sleeve, a fixed seat, a supporting screw, a movable supporting rod, a friction wheel, a cam, a brake pad and a check ring, wherein the handle comprises 1-the hand wheel, 2-the bearing seat, a 3-the hoop column, a 4-the driving handle, 5-the driving shaft, 6-the shaft sleeve, 7-the input shaft, 8-the bearing, 9-the frame assembly, 10-the friction driving piece, 11-the driving rod, 12-the supporting rod, 13-the movable claw, 14-the three clamping jaws, 15-the protective pad, 16-the fruit, 17-the sliding sleeve, 18-the fixed seat, 19-the supporting screw, 20-the movable supporting rod, 21-the friction wheel, the cam, the brake pad and 24-the check ring.

Detailed Description

The following detailed description of embodiments of the present invention is provided in connection with the accompanying drawings and examples. The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.

As shown in fig. 1, the fruit picker according to the present embodiment, in which the manual friction control is performed, has the following structure.

The fruit picking machine with manual friction force control comprises a rack assembly (9), a transmission rod (11), a power transmission system, a force adjusting mechanism and a gripping structure, wherein the details of each structure are shown in figure 2;

the frame assembly (9) is formed by fixedly connecting a hollow long pipe and a rigid supporting plate and provides a firm platform for picking fruits;

the power transmission system comprises: comprises a hand wheel (1), a bearing seat (2), an input shaft (7), a bearing (8), a friction wheel (21) and a friction driving sheet (10);

one end of the input shaft (7) is connected with the hand wheel (1), and the other end of the input shaft is connected with the friction wheel (21);

the edge of the friction wheel (21) extends into the opening of the frame assembly (9) and is in pressure contact with the friction driving sheet (10);

the bearing (8) is fixed on the bearing seat (2), and the bearing seat (2) is fixed on the rigid support plate to provide support for the power transmission system;

the transmission rod (11) is axially and fixedly connected with the friction transmission sheet (10) in the hollow long pipe; the radial direction can be freely adjusted, so that the friction driving sheet (10) is ensured to be fully contacted with the friction wheel (21);

the force adjustment mechanism: comprises a fixed seat (18), a supporting screw (19) and a movable supporting rod (20);

the fixed seat (18) is fixed on the hollow long tube, the movable support rod (20) is arranged in the middle of the fixed seat (18), and the fixed seat (18) limits the axial freedom degree of the movable support rod (20) in the hollow long tube and allows the movable support rod to move in the radial direction;

the supporting screw (19) is in threaded connection with the frame assembly (9) and controls the radial position of the supporting rod (20) in the hollow long pipe.

In the embodiment, the movable support rod (20) is pushed to move radially in the hollow long pipe under the action of the threads by rotating the support screw (19) to adjust the contact pressure between the friction wheel (21) and the friction drive plate (10), so that the external force is converted into positive pressure acting on the friction drive plate (10); when the friction wheel (21) rotates forwards and backwards under the action of the torque of the hand wheel (1), the friction transmission piece (10) is driven to linearly move back and forth in the axial direction of the hollow long pipe under the action of the friction force, so that the fruit can be grabbed and loosened by the grabbing structure.

Furthermore, the picking machine also comprises a self-locking mechanism, wherein the self-locking mechanism comprises a shifting handle (4), a shifting shaft (5), a shaft sleeve (6), a cam (22) and a brake pad (23);

the shaft sleeve (6) is fixed on the bearing seat (2) and is in clearance fit connection with the shifting shaft (5) to support one end of the shifting shaft (5). The other end of the shifting shaft (5) is connected with the cam (22);

the toggle handle (4) is uneven in mass, fixed on the toggle shaft (5) and generates a moment for enabling the cam (22) to be in contact with the friction driving piece (10) under the action of gravity;

the brake pad (23) is fixed on the fixed seat (18) and is aligned with the position of the cam (22).

In the embodiment, when the cam (22) is in contact with the friction drive plate (10), certain pressure is generated among the cam (22), the friction drive plate (10) and the brake pad (23) under the action of force, so that the self-locking function is realized. And a retainer ring (24) is arranged at one end of the shifting shaft (5) far away from the shaft sleeve (6) and used for limiting the cam (22) to slide out of the shifting shaft (5).

Furthermore, the self-locking mechanism further comprises a hoop clamping column (3) used for fixing the toggle handle (4), and the hoop clamping column (3) is fixed on a rigid supporting plate of the rack assembly (9). When the cylinder on the toggle handle (4) is clamped in the clamp column (3), the cam (22) is not contacted with the friction driving sheet (10) any more, and the self-locking mechanism is invalid.

Furthermore, the end part of the upper cylinder of the toggle handle (4) is provided with a balance weight for increasing the pressure among the cam (22), the friction drive plate (10) and the brake pad (23).

Further, the gripping structure comprises a support rod (12), a movable jaw (13) and a three-jaw (14);

one end of the support rod (12) is connected with the hollow long tube at a fixed angle, and the other end of the support rod (12) is movably connected with the three clamping jaws (14); the transmission rod (11) is fixedly connected with the movable claw (13). When the transmission rod (11) reciprocates back and forth in the hollow long pipe, the three clamping jaws (14) are opened at different angles.

Furthermore, a protective pad (15) is arranged on the contact surface of the three clamping jaws (14) and the fruit. Damage to the fruit in the gripping structure is prevented.

Further, a sliding sleeve (17) is arranged at the port of the hollow long pipe close to the side of the gripping structure, as shown in figure 3. The sliding sleeve (17) limits the radial position of the penetrating transmission rod (11) in the hollow long pipe, and does not limit the axial position.

In this embodiment, the fruit picking process using the fruit picking machine with the manual friction control force is as follows:

A. debugging the force between the three clamping jaws:

firstly, a cylinder on a toggle handle (4) is clamped in a clamp column (3) to ensure that a self-locking mechanism fails; and putting the fruits to be picked between the three clamping jaws, then rotating the hand wheel (1), retreating the friction driving sheet (10) under the action of friction force, gradually clamping the fruits by the three clamping jaws (14) until the friction wheel slips, and checking whether the fruits are clamped or not. If the fruit is pinched, the supporting screw (19) is rotated to further push the movable supporting rod (20) to adjust the friction force between the friction driving sheet (10) and the friction wheel (21), so as to ensure that the fruit is not pinched.

B. Opening the three jaws in preparation for grasping the fruit:

the cylinder on the toggle handle (4) is clamped in the clamp column (3) to ensure that the self-locking mechanism fails; at the moment, the hand wheel (1) is rotated, and under the action of friction force, the friction driving sheet (10) advances, so that the three clamping jaws (14) are opened.

C. Fruit capturing:

the hand wheel (1) is rotated reversely, and under the action of friction force, the friction driving sheet (10) retreats, so that the three clamping jaws (14) are gradually closed, and fruits are captured. The handle (4) is stirred to be separated from the clamp column (3), and the self-locking mechanism is in a working state under the action of gravity.