阅读说明：本技术 具有主动压紧锁止功能的钢丝牵引机器人 (Steel wire traction robot with active compression locking function ) 是由 占杨区 于 2020-12-28 设计创作，主要内容包括：本发明公开了一种具有主动压紧锁止功能的钢丝牵引机器人,包括底座、凸轮、钢丝牵引轮和多个压紧机构,凸轮固定在底座的一侧,凸轮周壁依次设有压紧段、第一开闭段、打开段和第二开闭段,钢丝牵引轮具有多个沿周向间隔设置且沿径向延伸的轮辐,钢丝牵引轮活动穿过凸轮后转动连接在底座上,多个压紧机构一一对应滑动连接在多个轮辐上,压紧机构包括滚轮、压紧杆、复位弹簧和锁止臂,滚轮轴接在压紧杆的一端,复位弹簧套设在压紧杆的外壁,压紧杆的另一端设置有安转凹槽,锁止臂与锁止臂末端轴接在安装凹槽上,锁止臂中部与轮辐铰接；本发明能够提供更大的负载能力,以适应负载大工况,且空间占用较小,满足紧凑空间的应用场景。(The invention discloses a steel wire traction robot with an active compression and locking function, which comprises a base, a cam, a steel wire traction wheel and a plurality of compression mechanisms, wherein the cam is fixed on one side of the base, the peripheral wall of the cam is sequentially provided with a compression section, a first opening-closing section, an opening section and a second opening-closing section; the invention can provide larger load capacity to adapt to the working condition of large load, occupies smaller space and meets the application scene of compact space.)

1. A steel wire traction robot with an active compression and locking function is characterized by comprising a base (1), a cam (2), a steel wire traction wheel (3) and a plurality of compression mechanisms (4);

the cam (2) is fixed on one side of the base (1), and the peripheral wall of the cam (2) is sequentially provided with a pressing section (21), a first opening and closing section (22), an opening section (23) and a second opening and closing section (24);

the steel wire traction wheel (3) is provided with a plurality of spokes (31) which are arranged at intervals along the circumferential direction and extend along the radial direction, and the steel wire traction wheel (3) movably penetrates through the cam (2) and then is rotationally connected with the base (1) through a bearing (6);

the pressing mechanisms (4) are connected to the spokes (31) in a one-to-one corresponding sliding mode, and each pressing mechanism (4) comprises a roller (41), a pressing rod (42), a return spring (43) and a locking arm (44); the roller (41) is coupled to one end of the pressing rod (42) in a shaft manner; the reset spring (43) is sleeved on the outer wall of the compression rod (42), and two ends of the reset spring (43) are respectively abutted against the compression rod (42) and the spoke (31); the other end of the pressing rod (42) is provided with a mounting groove (45); one end of the locking arm (44) is movably hinged on the mounting groove (45), and the middle part of the locking arm (44) is hinged on the spoke (31).

2. The wire traction robot with active compression locking according to claim 1, characterized in that the compression lever (42) comprises a first compression lever (421) and a second compression lever (422); one end of the first pressure lever (421) is coupled with the roller (41); one end of the second pressure lever (422) is provided with an accommodating chamber (4221); the return spring (43) is sleeved on the second pressure lever (422); the mounting groove (45) is formed in the other end of the second pressing rod (422); a pressure adjusting mechanism (5) is arranged between the first pressure lever (421) and the second pressure lever (422); the pressure adjusting mechanism (5) comprises a length adjusting rod (51), a pressure adjusting rod (52), an adjusting slide block (53) and an adjusting spring (54); two ends of the length adjusting rod (51) are respectively provided with threaded parts with opposite turning directions, one end of the length adjusting rod (51) is in threaded connection with the other end of the first pressing rod (42), and the other end of the length adjusting rod (51) movably extends into the accommodating chamber (4221); the pressure adjusting rod (52) is in threaded connection with the other end of the length adjusting rod (51), and a part of the pressure adjusting rod (52) movably extends into the accommodating chamber (4221); the adjusting slide block (53) and the adjusting spring (54) are arranged in the accommodating cavity (4221); the adjusting slide block (53) is movably sleeved on the length adjusting rod (51); two ends of the adjusting spring (54) are respectively abutted against the inner wall of the accommodating cavity (4221) and the adjusting slide block (53); wherein one end surface of the adjusting slide block (53) is always kept in contact with the end surface of the pressure adjusting rod (52) under the action of the adjusting spring (54).

3. The steel wire traction robot with the active compression locking function is characterized in that one end of the second compression rod (422) is symmetrically provided with a limiting hole (4222) communicated with the accommodating cavity (4221); the sliding blocks are symmetrically and convexly provided with two sliding pins (531), and the two sliding pins (531) are movably embedded into the two limiting holes (4222) in a one-to-one correspondence mode.

4. The steel wire traction robot with the active pressing and locking function is characterized in that a limit stop ring is convexly arranged at the other end of the length adjusting rod (51).

5. The wire traction robot with the active compression locking function is characterized in that each spoke (31) is provided with a first lug (32), a second lug (33) and a third lug (34), the first pressure lever (421) penetrates through the first lug (32) to be connected with the spoke (31) in a sliding mode, the second pressure lever (422) penetrates through the second lug (33) to be connected with the spoke (31) in a sliding mode, two ends of the return spring (43) are respectively abutted against the second pressure lever (422) and the second lug (33), and the middle of the locking arm (44) is hinged to the third lug (34).

6. The wire traction robot with the active compression locking function is characterized in that the peripheral wall of the spoke (31) is provided with a sliding groove (35), and the shape of the sliding groove (35) is matched with that of the peripheral surface of a traction wire.

7. The wire traction robot with active compression locking according to claim 6, characterized in that the locking arm (44) is provided with a circular arc groove adapted to the traction wire circumference.

8. The wire traction robot with active compression locking according to claim 6, characterized in that the locking arm (44) is provided with a circular arc groove adapted to the traction wire circumference.

Technical Field

The invention relates to the technical field of steel wire traction, in particular to a steel wire traction robot with an active pressing and locking function.

Background

The steel wire traction device is a flexible traction system which utilizes the friction force between a steel wire and a traction wheel to transfer traction force, and is widely applied to the fields of material conveying, heavy object hoisting and the like. The steel wire traction wheel is limited by the limitation that the friction coefficient between the steel wire and the steel traction wheel is small, the current steel wire traction wheel generally adopts a multi-groove structure, the contact area is increased through multi-circle winding of the steel wire, and therefore the load capacity is improved, but the mode occupies a large space, and the application scene of a compact space cannot be met. And the steel wire traction wheel with the single-row grooves is limited in contact area and tension between the steel wires and the steel wire wheel, so that the load capacity is very low, and the steel wire traction wheel cannot adapt to a large-load working condition.

Disclosure of Invention

The invention aims to overcome the defects and provide a steel wire traction robot with an active pressing and locking function, which occupies less space and has high load capacity.

In order to achieve the purpose, the invention adopts the following specific scheme:

a steel wire traction robot with an active compression and locking function comprises a base, a cam, a steel wire traction wheel and a plurality of compression mechanisms;

the cam is fixed on one side of the base, and the peripheral wall of the cam is sequentially provided with a pressing section, a first opening and closing section, an opening section and a second opening and closing section; the steel wire traction wheel is provided with a plurality of spokes which are arranged at intervals along the circumferential direction and extend along the radial direction, and the steel wire traction wheel movably penetrates through the cam and then is rotationally connected with the base through a bearing; the pressing mechanisms are connected to the spokes in a one-to-one corresponding sliding mode, and each pressing mechanism comprises a roller, a pressing rod, a return spring and a locking arm; the roller shaft is connected to one end of the pressing rod; the reset spring is sleeved on the outer wall of the compression rod, and two ends of the reset spring are respectively abutted against the compression rod and the spoke; the other end of the pressing rod is provided with a mounting groove; one end of the locking arm is movably hinged to the mounting groove, and the middle of the locking arm is hinged to the spoke.

The invention further provides that the compression bar comprises a first compression bar and a second compression bar; one end of the first pressure lever is coupled with the roller; one end of the second pressure lever is provided with an accommodating chamber; the reset spring is sleeved on the second pressure lever; the mounting groove is formed in the other end of the second pressure lever; a pressure adjusting mechanism is arranged between the first pressure lever and the second pressure lever; the pressure adjusting mechanism comprises a length adjusting rod, a pressure adjusting rod, an adjusting slide block and an adjusting spring; two ends of the length adjusting rod are respectively provided with threaded parts with mutually opposite rotation directions, one end of the length adjusting rod is in threaded connection with the other end of the first pressing rod, and the other end of the length adjusting rod movably extends into the accommodating cavity; the pressure adjusting rod is in threaded connection with the other end of the length adjusting rod, and part of the pressure adjusting rod movably extends into the accommodating cavity; the adjusting slide block and the adjusting spring are arranged in the accommodating cavity; the adjusting slide block is movably sleeved on the length adjusting rod; two ends of the adjusting spring are respectively abutted against the inner wall of the accommodating chamber and the adjusting slide block; one end face of the adjusting sliding block is always kept in contact with the end face of the pressure adjusting rod under the action of the adjusting spring.

Furthermore, one end of the second pressure lever is symmetrically provided with a limiting hole communicated with the accommodating cavity; the sliding blocks are symmetrically and convexly provided with two sliding pins, and the two sliding pins are movably embedded into the two limiting holes in a one-to-one correspondence mode.

Furthermore, the end part of the other end of the length adjusting rod is convexly provided with a limit stop ring.

Furthermore, each spoke is provided with a first lug, a second lug and a third lug, the first pressure rod penetrates through the first lug to be connected with the spoke in a sliding mode, the second pressure rod penetrates through the second lug to be connected with the spoke in a sliding mode, two ends of the return spring are respectively abutted to the second pressure rod and the second lug, and the middle portion of the locking arm is hinged to the third lug.

The spoke peripheral wall is further provided with a sliding groove, and the shape of the sliding groove is matched with the peripheral surface of the traction steel wire.

Furthermore, the locking arm is provided with an arc groove matched with the peripheral surface of the traction steel wire.

The invention has the beneficial effects that: according to the invention, the steel wire traction wheel is arranged to drive the pressing mechanism to synchronously rotate, and the pressing mechanism is orderly matched with the cam, so that the steel wire is continuously pressed when the steel wire is in contact with the steel wire traction wheel, the load capacity is greatly improved, the steel wire traction wheel is suitable for a large-load working condition, the occupied space is small, and the application scene of compact space is met.

Drawings

FIG. 1 is an exploded schematic view of the present invention;

FIG. 2 is a cross-sectional view of the present invention;

FIG. 3 is an enlarged partial schematic view at A in FIG. 2;

FIG. 4 is a perspective view of the hold-down mechanism of the present invention;

FIG. 5 is a perspective view of the wire traction sheave of the present invention;

description of reference numerals: 1-a base; 2-a cam; 21-a compacting section; 22-a first open-close section; 23-opening section; 24-a second open-close segment; 3-a steel wire traction wheel; 31-spokes; 32 a first lug; 33-a second lug; 34-a third lug; 35-a chute; 4-a pressing mechanism; 41-a roller; 42-a hold down bar; 421-a first pressure lever; 422-a second compression bar; 4221-a holding chamber; 4222-limit hole; 43-a return spring; 44-a locking arm; 45-mounting the groove; 5-a pressure regulating mechanism; 51-length adjusting rod; 52-pressure regulating rod; 53-adjusting the slide block; 531-sliding pin; 54-adjusting the spring; 6-bearing.

Detailed Description

The invention will be described in further detail with reference to the following figures and specific examples, without limiting the scope of the invention.

As shown in fig. 1 to 5, the wire traction robot with an active pressing and locking function according to the present embodiment includes a base 1, a cam 2, a wire traction wheel 3, and a plurality of pressing mechanisms 4;

the cam 2 is fixed on one side of the base 1, and the peripheral wall of the cam 2 is sequentially provided with a pressing section 21, a first opening and closing section 22, an opening section 23 and a second opening and closing section 24; the steel wire traction wheel 3 is provided with a plurality of spokes 31 which are arranged at intervals along the circumferential direction and extend along the radial direction, and the steel wire traction wheel 3 is movably connected with the base 1 through a bearing 6 after penetrating through the cam 2; the pressing mechanisms 4 are connected to the spokes 31 in a one-to-one corresponding sliding manner, and each pressing mechanism 4 comprises a roller 41, a pressing rod 42, a return spring 43 and a locking arm 44; the roller 41 is coupled to one end of the pressing rod 42; the reset spring 43 is sleeved on the outer wall of the pressing rod 42, and two ends of the reset spring 43 are respectively abutted against the pressing rod 42 and the spoke 31; the other end of the pressing rod 42 is provided with a mounting groove 45; one end of the locking arm 44 is movably hinged on the mounting groove 45, and the middle part of the locking arm 44 is hinged on the spoke 31.

The working mode of the embodiment is as follows: when the steel wire drawing wheel works, the steel wire drawing wheel 3 is driven by external power to rotate to drive the pressing mechanisms 4 to synchronously rotate, each roller 41 rolls along the peripheral surface of the cam 2, when the roller 41 moves to the pressing section 21, the pressing mechanisms 4 are in a pressing state, the cam 2 has axial outward extrusion force on the roller 41, the roller 41 pushes the pressing rod 42 to slide outwards relative to the spoke 31, the locking arm 44 presses the steel wire on the spoke 31 after the pressing rod 2 transmits the extrusion force, and at the moment, the return spring 43 is in a compressed state; when the roller 41 moves to the first opening and closing section 22, the pressing mechanism 4 gradually slides inwards relative to the spoke 31 under the action of the return spring 43, and the locking arm 44 gradually changes from a pressing state to an opening state under the pulling of the pressing rod 42, namely the locking arm 44 gradually releases the steel wire; when the roller 41 moves to open the section 23, the return spring 43 is in a natural state, and the locking arm 44 is always kept in an open state; when the roller 41 moves to the second opening and closing section 24, the pressing rod 42 gradually extends outward relative to the spoke 31 and pushes the locking arm 44 to swing, so that the locking arm 44 changes from the opening state to the pressing state until the locking arm 44 presses the wire, and then the roller 41 enters the pressing section so that the locking arm 44 holds the wire.

This embodiment drives hold-down mechanism 4 synchronous rotation through setting up steel wire traction wheel 3 to utilize hold-down mechanism 4 and cam 2 to cooperate in order, thereby realize keeping continuously compressing tightly the steel wire when steel wire and steel wire traction wheel 3 contact, thereby improve the load capacity greatly, with the adaptation heavy load operating mode, and the space occupies for a short time, satisfies the application scene in compact space.

Based on the above embodiment, further, the pressing rod 42 includes a first pressing rod 421 and a second pressing rod 422; one end of the first pressure lever 421 is coupled to the roller 41; one end of the second pressure lever 422 is provided with an accommodating chamber 4221; the return spring 43 is sleeved on the second pressure lever 422; the mounting groove 45 is arranged at the other end of the second pressure lever 422; a pressure adjusting mechanism 5 is arranged between the first pressure lever 421 and the second pressure lever 422; the pressure adjusting mechanism 5 comprises a length adjusting rod 51, a pressure adjusting rod 52, an adjusting slide block 53 and an adjusting spring 54; two ends of the length adjusting rod 51 are respectively provided with threaded parts with opposite rotation directions, one end of the length adjusting rod 51 is in threaded connection with the other end of the first pressing rod 42, and the other end of the length adjusting rod 51 movably extends into the accommodating chamber 4221; the pressure adjusting rod 52 is in threaded connection with the other end of the length adjusting rod 51, and a part of the pressure adjusting rod 52 movably extends into the accommodating chamber 4221; the adjusting slide block 53 and the adjusting spring 54 are both arranged in the accommodating cavity 4221; the adjusting slide block 53 is movably sleeved on the length adjusting rod 51; two ends of the adjusting spring 54 are respectively abutted against the inner wall of the accommodating chamber 4221 and the adjusting slide block 53; one end surface of the adjusting slider 53 is always kept in contact with the end surface of the pressure adjusting lever 52 by the adjusting spring 54.

When the length adjusting rod 51 is manually rotated to enable the length adjusting rod 51 to be outwardly screwed out relative to the first pressure rod 421, the length adjusting rod 51 drives the pressure adjusting rod 52 to rotate, the pressure adjusting rod 52 pushes the adjusting slider 53 into the accommodating chamber 4221 to further push the adjusting spring 54, the adjusting spring 54 is in a compressed state, and axial outward thrust is axially applied to the second pressure rod 422, so that the thrust of the second pressure rod 422 to the locking arm 44 reaches the magnitude required by work; therefore, the length adjusting rod 52, the pressure adjusting rod 53, the adjusting slide block 54 and the adjusting spring 55 are matched and linked with each other, so that the thrust of the whole pressing rod 42 to the locking arm 44 is adjustable, the pressing force of the locking arm 44 to the steel wire is further adjustable, and the structure is more flexible to adapt to the load size required by different working conditions.

Based on the above embodiment, further, one end of the second pressure lever 422 is symmetrically provided with a limiting hole 4222 communicated with the accommodating chamber 4221; the sliding blocks are symmetrically and convexly provided with two sliding pins 531, and the two sliding pins 531 are movably embedded into the two limiting holes 4222 in a one-to-one correspondence mode. In the present embodiment, the two sliding pins 531 slide in the two limiting holes 4222, so as to control the compression range of the adjusting spring 55 by the adjusting slider 54.

Based on the basis of the above embodiment, further, a limit stop ring is convexly arranged at the end part of the other end of the length adjusting rod 51. So set up, effectively prevent to adjust slider 53 roll-off length adjustment pole 51.

Based on the basis of the above embodiment, each spoke 31 is provided with a first lug 32, a second lug 33 and a third lug 34, the first pressing rod 421 passes through the first lug 32 to be slidably connected with the spoke 31, the second pressing rod 422 passes through the second lug 33 to be slidably connected with the spoke 31, two ends of the return spring 43 respectively abut against the second pressing rod 422 and the second lug 33, and the middle part of the locking arm 44 is hinged on the third lug 34. The embodiment arranges the first lug 32, the second lug 33 and the third lug 34 on the same straight line, ensures that the first pressure lever 421, the second pressure lever 422 and the locking arm 44 are arranged on the same axial straight line, and ensures the axial movement of the first pressure lever 421, the second pressure lever 422 and the locking arm 44.

Based on the basis of the above embodiment, further, the peripheral wall of the spoke 31 is provided with a sliding groove 35, and the shape of the sliding groove 35 is matched with the peripheral surface of the traction wire. So set up for spoke 31 and steel wire fully contact, and then improve the load-carrying capacity.

Based on the above embodiment, further, the locking arm 44 is provided with a second arc groove adapted to the periphery of the traction wire. So set up for it is abundant with the steel wire contact on the locking arm 44, does benefit to locking arm 44 and firmly compresses tightly, and then increases load capacity.

The above description is only a preferred embodiment of the present invention, and all equivalent changes or modifications of the structure, characteristics and principles described in the present patent application are included in the protection scope of the present patent application.