CN202833757U

CN202833757U - Rope bundle one-way movement control mechanism with ratchet wheel

Info

Publication number: CN202833757U
Application number: CN201220462883.4U
Authority: CN
Inventors: 武光; 李先波
Original assignee: NANJING CHEMICAL CONSTRUCTION CO Ltd
Current assignee: NANJING CHEMICAL CONSTRUCTION CO Ltd
Priority date: 2012-09-12
Filing date: 2012-09-12
Publication date: 2013-03-27
Anticipated expiration: 2022-09-12

Abstract

The utility model discloses a rope bundle one-way movement control mechanism with a ratchet wheel. The upper horizontal side surface and the lower horizontal side surface of a frame are respectively provided with a through hole. The rope bundle perpendicularly penetrates through the two through holes of the frame and can slide in the two through holes up and down. A couple of linkage gear shafts are horizontally arranged in a same height and penetrate in parallel through the perpendicular sides of the frame. A cam and a linkage gear which are respectively arranged on two sides of the frame are sleeved on each of the linkage gear shafts. The couple of the linkage gears with a same tooth number and a same module number are meshed with each other, wherein one of the linkage gears is meshed with a medium wheel which is also meshed with a transmission gear. A transmission gear shaft is arranged horizontally and penetrates through the vertical side faces of the frame 8. The transmission gear, a pawl wheel and a ratchet wheel are sleeved on the transmission gear shaft. The pawl wheel is located on the same side of the camas and is provided with two pawls which are arranged symmetrically relative to the center of the pawl wheel. The rope bundle is perpendicularly penetrated between the couple of the cams which tightly press the rope bundle. The rope bundle and the pawl wheel are kept contact so reverse movement of the rope bundle is avoided.

Description

A kind of rope bundle unidirectional movement control mechanism with ratchet

Technical field

The utility model relates to the control mechanism of a kind of tricing line Shu Yundong.

Background technique

The rope bundle is controlled its motion as required when work, general commonly used integrated device with mechanical, electrical, liquid and control, this apparatus structure is complicated, cost is higher, in some special engineering operation occasions, need not cost height and baroque rope beam control device processed, for easy-to-operat, only need adopt simple control gear.Rope is restrainted the control of unidirectional movement and is used the place many, as in industrial erecting bed, when often employing is manually lifted by crane equipment, need to prevent the slide of returning of lifting rope bundle; Perhaps with rope Shu Ladong equipment the time, such as the vehicle on the pulling slope, the beam reversal that need to prevent from restricting moves.

Summary of the invention

The purpose of this utility model provide a kind of prevent from restricting restraint back the rope bundle unidirectional movement control mechanism with ratchet that slips.

The technical solution adopted in the utility model is: comprise framework, respectively have a through hole on the up and down horizontal side of framework, rope Shu Chuizhi passes two through holes on the framework and can slide up and down in these two through holes, a pair of linkage gear axle sustained height horizontal arrangement and parallel vertical side of passing framework, each cover has a cam and linkage gear that is located at respectively the framework both sides on each linkage gear axle, and the linkage gear of a pair of identical number of teeth and modulus is intermeshing; One of them linkage gear also meshes with intermediary wheel, intermediary wheel also meshes with driving gear, the driving gearshaft horizontal arrangement and pass the vertical side of framework 8 and driving gearshaft on cover driving gear, pawl wheel and ratchet are arranged, homonymy and pawl wheel that pawl wheel is positioned at cam are provided with two ratchets of arranging with respect to the pawl wheel Central Symmetry, ratchet is driven by ratchet and rotates, rope Shu Chuizhi is through between the pair of cams, and pair of cams is pressed the rope bundle, and the rope bundle keeps in touch with pawl wheel.

The utility model is simple in structure, volume is little, low cost of manufacture, be easy to install, convenient operation, and be easy to play and prevent from restricting the effect of beam reversal's motion.

Description of drawings

Below in conjunction with the drawings and specific embodiments the present invention is described in further detail.

Fig. 1 is main parallax stereogram of the present utility model;

Fig. 2 is the rear perspective view of Fig. 1;

Fig. 3 is explosive view of the present utility model;

Among the figure: 1, rope bundle; 2, linkage gear axle; 3, linkage gear; 4, flat key; 5, intermediary wheel; 6, intermediary's wheel shaft; 7, driving gear; 8, framework; 9, flat key; 10, driving gearshaft; 11, pawl wheel; 12, cam; 13, ratchet; 14, ratchet.

Embodiment

As shown in Figure 1, 2, 3, the utility model comprises gear parts, cam portion and ratchet mechanism and framework 8; Respectively have a through hole on the up and down horizontal side of framework 8, rope bundle 1 vertically passes two through holes on the framework 8 and can slide up and down in these two through holes.

Gear parts is comprised of the linkage gear 3 of a pair of identical number of teeth and modulus, a pair of linkage gear axle 2, an intermediary wheel 5, intermediary's wheel shaft 6, a driving gear 7, a driving gearshaft 10.Cam portion is by cam 12(or the eccentric wheel of a pair of identical size) and a pair of linkage gear axle 2 form.Ratchet mechanism is comprised of ratchet 14, pawl wheel 11 and ratchet 13.

A pair of linkage gear axle 2 sustained height horizontal arrangement, and parallel vertical side of passing framework 8, respectively be set with a cam 12 and linkage gears 3 by flat key 4 on each linkage gear axle 2, cam 12 and linkage gear 3 are installed in respectively the both sides of framework 8, linkage gear 3 is installed in the inboard of framework 8, and cam 12 is installed in the outside of framework 8.The linkage gear 3 of a pair of identical number of teeth and modulus is intermeshing, like this, make linkage gear 3 and cam 12 as a moving link along with linkage gear axle 2 rotates synchronously, the rotation of a pair of linkage gear 3 can make pair of cams 12 can locking phases to or opposite the rotation.

One of them linkage gear 3 and intermediary wheel 5 engagements, and intermediary wheel 5 is positioned at the below with the linkage gear 3 of its engagement, intermediary wheel 5 is sleeved on intermediary's wheel shaft 6, and intermediary's wheel shaft 6 is rotationally connected with on the framework 8.It is the driving gear 7 with intermediary wheel 5 engagements below intermediary wheel 5, driving gear 7 is sleeved on the driving gearshaft 10, driving gearshaft 10 horizontal arrangement and the vertical side of passing framework 8, pawl wheel 11 is positioned at the homonymy of cam 12 and is sleeved on the driving gearshaft 10, two ratchets 14 of arranging with respect to pawl wheel 11 Central Symmetries are installed on pawl wheel 11 simultaneously, ratchet 13 circumferentially is fixed on the driving gearshaft 10 by flat key 9, is driven by ratchet 14 and rotates.Rope bundle 1 vertically is through between the pair of cams 12, can make pair of cams 12 press rope bundle 1, and rope bundle 1 keeps in touch with pawl wheel 11, forms certain pressure in order to produce frictional force, and drive pawl wheel 11 and ratchet 14 rotate together.Drive linkage gear 3 rotations coaxial with cam 12 by driving gear 7 by mesomerism gear 5, thereby drive two cams, 12 relative backward rotation.

When rope bundle 1 moves upward, frictional force drive pawl wheel 11 by contact rotates counterclockwise, the ratchet 14 that install on the pawl wheel 11 this moment, driving ratchet 13 rotates counterclockwise together, ratchet 13 circumferentially is fixed on the driving gearshaft 10 by flat key 9 with driving gearshaft 10 and rotates counterclockwise, driving gear 7 drives the intermediary wheel 5 that is engaged with and rotates, and the linkage gear 3 that 5 drives of intermediary wheel are engaged with rotates; A pair of linkage gear 3 drives linkage gear axle 2 by flat key 4 and rotates, 2 on linkage gear axle drives pair of cams 12 and makes mutual backward rotation, this moment, this formed move toward one another formation clamping action to cam 12, thereby clamp rope bundle 1, stop up motion of rope bundle 1, the frictional force of the motion of cam 12 itself and rope bundle 1 and cam 12, can produce two moments, these two moments produce pressure to passing two rope bundles 1 between the cam 12, pressure is larger, two cams 12 to step up effect just obvious, prevent from continuing motion thereby choke rope bundle 1, reached the effect of fixing and locking rope bundle 1.

Rope bundle 1 moves downward and drives pawl wheel 11 and clockwise rotate, and pawl wheel can not fasten ratchet 14 11 this moments, and ratchet 13 does not rotate, and driving gear 7 is simultaneously static not to rotate; 1 and two cam of rope bundle 12 clamps the frictional force that produces and becomes in the other direction, and when rope bundle 1 moved downward, two cams 12 were not subjected to gear 3 driving forces, and rope bundle 1 can be advanced smoothly.

Claims

1. rope bundle unidirectional movement control mechanism with ratchet, comprise framework (8), respectively have a through hole on the up and down horizontal side of framework (8), rope bundle (1) vertically passes two through holes on the framework (8) and can slide up and down in these two through holes, it is characterized in that: a pair of linkage gear axle (2) sustained height horizontal arrangement and parallel vertical side of passing framework (8), each linkage gear axle (2) Shang Getao has a cam (12) and a linkage gear (3) that is located at respectively framework (8) both sides, and the linkage gear of a pair of identical number of teeth and modulus (3) is intermeshing; One of them linkage gear (3) also meshes with intermediary wheel (5), intermediary wheel (5) also meshes with driving gear (7), driving gearshaft (10) horizontal arrangement is also passed the vertical side of framework (8) and the upper cover of driving gearshaft (10) has driving gear (7), pawl wheel (11) and ratchet (13), homonymy and pawl wheel (11) that pawl wheel (11) is positioned at cam (12) are provided with two ratchets (14) of arranging with respect to pawl wheel (11) Central Symmetry, ratchet (13) is driven by ratchet (14) and rotates, rope bundle (1) vertically is through between the pair of cams (12), pair of cams (12) is pressed rope bundle (1), and rope bundle (1) keeps in touch with pawl wheel (11).

2. a kind of rope bundle unidirectional movement control mechanism with ratchet according to claim 1, it is characterized in that: intermediary wheel (5) is enclosed within the upper and intermediary wheel (5) of intermediary's wheel shaft (6) and is positioned at below with the linkage gear (3) of its engagement, and intermediary's wheel shaft (6) is rotationally connected framework (8).

3. a kind of rope bundle unidirectional movement control mechanism with ratchet according to claim 1, it is characterized in that: driving gear (7) is positioned at the below of intermediary wheel (5).