CN219327748U

CN219327748U - Bidirectional ratchet structure

Info

Publication number: CN219327748U
Application number: CN202320163368.4U
Authority: CN
Inventors: 杨立冬
Original assignee: TAICANG JINLIDE POWDER METALLURGY CO Ltd
Current assignee: TAICANG JINLIDE POWDER METALLURGY CO Ltd
Priority date: 2023-02-08
Filing date: 2023-02-08
Publication date: 2023-07-11
Anticipated expiration: 2033-02-08

Abstract

The utility model relates to the technical field of mechanical braking, in particular to a bidirectional ratchet structure which comprises a protection frame, a fixing frame and a fixing plate, wherein the upper end and the lower end of the protection frame are fixedly connected with the fixing frame, the outer side of the inner end of the fixing frame is rotationally connected with a screw rod, the outer side of the inner end of the screw rod is spirally connected with a lifting block, and the inner end of the lifting block is fixedly connected with a telescopic rod. According to the utility model, through the screw rod, the lifting block and the spring, the telescopic rod can drive the first pawl and the second pawl to move up and down by rotating the screw rod, so that the first pawl and the second pawl can alternately limit the ratchet main body, or the ratchet main body can be limited in both directions by the first pawl and the second pawl, and the ratchet main body can rotate without limitation when the first pawl and the second pawl are separated from the ratchet main body simultaneously, so that the bidirectional ratchet is convenient to steer, adjust and brake.

Description

Bidirectional ratchet structure

Technical Field

The utility model relates to the technical field of mechanical braking, in particular to a bidirectional ratchet structure.

Background

With the development of society, the application of the bidirectional ratchet wheel is more and more extensive, the ratchet wheel structure comprises a friction ratchet wheel mechanism and a tooth type ratchet wheel mechanism, wherein the tooth type ratchet wheel mechanism comprises a unidirectional ratchet wheel mechanism and a bidirectional ratchet wheel mechanism, the tooth shape of the bidirectional ratchet wheel mechanism is generally rectangular, and bidirectional control or braking control of the bidirectional ratchet wheel is realized through a reversible pawl. The ratchet mechanism is not suitable for occasions with high speed or high motion precision requirements, and can meet the requirements of feeding, braking, overrunning, indexing and the like in production.

In the prior art, although the bidirectional ratchet structure can be used for steering adjustment, the bidirectional control operation is complex only through a single pawl, and the limit stability of the pawl to the ratchet is affected; and when the bidirectional ratchet wheel is adopted in the feeding equipment, the feeding direction is difficult to control, and the quick direction switching is difficult to be carried out according to the feeding direction, so that the using effect of the bidirectional ratchet wheel mechanism is affected.

Disclosure of Invention

The present utility model is directed to a bidirectional ratchet structure, which solves the above-mentioned problems in the prior art.

In order to achieve the above purpose, the present utility model provides the following technical solutions:

the utility model provides a two-way ratchet structure, includes guard frame, fixed frame and fixed plate, the equal fixedly connected with fixed frame of upper and lower extreme of guard frame, the inner outside rotation of fixed frame is connected with the screw rod, the inner outside screwed connection of screw rod has the lifter, the inner fixedly connected with telescopic link of lifter, be located the lower extreme the upper end fixedly connected with first pawl of telescopic link, sliding connection between first pawl and the fixed frame, be located the upper end the lower extreme fixedly connected with second pawl of telescopic link, sliding connection between second pawl and the fixed frame, the inboard rotation of guard frame is connected with ratchet main part, the ratchet main part is connected in the meshing between first pawl and second pawl respectively.

Preferably, the front end of the ratchet main body is fixedly connected with a driving bevel gear, the right side of the driving bevel gear is connected with a driven bevel gear in a meshed manner, the right end of the driven bevel gear is fixedly connected with a driving gear, and the rear end of the driving gear is connected with a driven toothed plate in a meshed manner.

Preferably, the outer end of the fixed frame is rotatably connected with a rotating block, and the rotating block is fixedly connected with the screw rod.

Preferably, the surface of the telescopic rod is externally covered with a spring.

Preferably, the right end fixedly connected with fixed plate of protection frame, rotate between fixed plate and the driven bevel gear and be connected.

Preferably, the gripping teeth of the first pawl and the second pawl are oppositely arranged.

Preferably, the cross sections of the lifting block, the first pawl and the second pawl are all rectangular.

Preferably, a thread groove is formed in the lifting block.

Compared with the prior art, the utility model has the beneficial effects that:

1. according to the utility model, through the screw rod, the lifting block and the spring, the lifting block can move up and down by utilizing the rotation of the screw rod, so that the telescopic rod can drive the first pawl and the second pawl to move up and down, and further, the first pawl and the second pawl can alternately limit the ratchet main body, or the first pawl and the second pawl can simultaneously limit the ratchet main body in a bidirectional way, and the ratchet main body can rotate without limitation when the first pawl and the second pawl are simultaneously separated from the ratchet main body, so that the bidirectional ratchet is convenient to steer, adjust and brake;

2. according to the utility model, through the arranged transmission bevel gear, the transmission gear and the driven toothed plate, the transmission bevel gear can rotate when the ratchet main body is driven, so that the driven bevel gear can drive the transmission gear to rotate, the driven toothed plate can move up and down, the bidirectional ratchet structure can control the feeding equipment to push in a bidirectional manner, and the use effect of the bidirectional ratchet mechanism is improved.

Drawings

FIG. 1 is a schematic view of the overall mounting structure of the present utility model;

FIG. 2 is a schematic view of the mounting structure of FIG. 1 at A in accordance with the present utility model;

fig. 3 is a plan view in cross section of the mounting structure of the fixing frame, the telescopic rod and the spring of the present utility model.

In the figure: 1. a protective frame; 2. a fixed frame; 3. a screw; 4. a lifting block; 5. a telescopic rod; 6. a first pawl; 7. a second pawl; 8. a ratchet body; 9. a drive bevel gear; 10. a driven bevel gear; 11. a transmission gear; 12. a driven toothed plate; 13. a rotating block; 14. a spring; 15. and a fixing plate.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Example 1

Referring to fig. 1-3, the present utility model provides a technical solution: the utility model provides a two-way ratchet structure, including protection frame 1, fixed frame 2 and fixed plate 15, the equal fixedly connected with fixed frame 2 of upper and lower extreme of protection frame 1, the inner outside rotation of fixed frame 2 is connected with screw rod 3, the inner outside screw connection of screw rod 3 has lifter 4, the inner fixedly connected with telescopic link 5 of lifter 4, the upper end fixedly connected with first pawl 6 of telescopic link 5 that is located the lower extreme, sliding connection between first pawl 6 and the fixed frame 2, sliding connection between lower extreme fixedly connected with second pawl 7 of telescopic link 5 that is located the upper end, sliding connection between second pawl 7 and fixed frame 2, the inboard rotation of protection frame 1 is connected with ratchet main part 8, ratchet main part 8 is connected with the meshing between first pawl 6 and second pawl 7 respectively, the outer end rotation of fixed frame 2 is connected with rotary block 13, fixed connection between rotary block 13 and the screw rod 3, the surface of telescopic link 5 is covered with spring 14 outward, the first pawl 6 is reverse setting in opposite directions with the grabbing tooth of second pawl 7, lifter 4, first pawl 6 and second pawl 7 are rectangle cross section and are rectangle setting, sliding connection between second pawl 7 and fixed frame 2, the inside ratchet is rotated in opposite directions and the first pawl 6 and second pawl 7 can make two-way through the rotation of ratchet device through the ratchet main part 8 and can make two-way rotation to rotate to ratchet main part 8 simultaneously through the second pawl 8, can make two-way rotation 3 to rotate to ratchet

main part

8, and 3 can make two-way ratchet device through the

rotation

3, and 3 can rotate through the second pawl through the ratchet device, and 3, and can make two-way rotation main part 8 rotate through the ratchet device is rotated through the second ratchet device, and 3, and can rotate through the second ratchet main part 3, the ratchet main body 8 can rotate without limitation when the first pawl 6 and the second pawl 7 are separated from the ratchet main body 8 at the same time, so that the bidirectional ratchet is convenient to steer and regulate and brake.

Example 2

Referring to fig. 1, the difference between the present embodiment and embodiment 1 is that: the front end fixedly connected with transmission bevel gear 9 of ratchet main part 8, the right side meshing of transmission bevel gear 9 is connected with driven bevel gear 10, driven bevel gear 10's right-hand member fixedly connected with drive gear 11, driven pinion rack 12 is connected with in the rear end meshing of drive gear 11, protection frame 1's right-hand member fixedly connected with fixed plate 15, rotate between fixed plate 15 and the driven bevel gear 10 and be connected, transmission bevel gear 9 can rotate when utilizing the drive to ratchet main part 8, thereby make driven bevel gear 10 can drive gear 11 and rotate, thereby make driven pinion rack 12 can reciprocate, and then make this two-way ratchet structure can control feeding equipment and carry out two-way propelling movement, promote two-way ratchet's result of use.

The working flow is as follows: when the device is used, an external power supply is adopted for driving the ratchet main body 8, the ratchet main body 8 is driven to rotate through an external driving device, the screw 3 can rotate through the rotation of the rotating block 13, the lifting block 4 can move up and down through the rotation of the screw 3, the telescopic rod 5 can drive the first pawl 6 and the second pawl 7 to move up and down, the first pawl 6 and the second pawl 7 can alternatively limit the ratchet main body 8, or the first pawl 6 and the second pawl 7 can simultaneously limit the ratchet main body 8 in a bidirectional way, the ratchet main body 8 can rotate without limitation during the simultaneous separation of the first pawl 6 and the second pawl 7 from the ratchet main body 8, the bidirectional ratchet is convenient to steer and regulate and brake, the driven bevel gear 10 can drive the driving gear 11 to rotate through the driving of the ratchet main body 8, the driven bevel gear 12 can move up and down, and the bidirectional ratchet structure can control the bidirectional pushing mechanism of the feeding equipment.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a two-way ratchet structure, includes protection frame (1), fixed frame (2) and fixed plate (15), its characterized in that: the protection frame is characterized in that the upper end and the lower end of the protection frame (1) are fixedly connected with the fixing frame (2), the outer side of the inner end of the fixing frame (2) is rotationally connected with the screw rod (3), the outer side of the inner end of the screw rod (3) is spirally connected with the lifting block (4), the inner end of the lifting block (4) is fixedly connected with the telescopic rod (5), the upper end of the telescopic rod (5) is fixedly connected with the first pawl (6), the first pawl (6) is slidably connected with the fixing frame (2), the lower end of the telescopic rod (5) is fixedly connected with the second pawl (7), the second pawl (7) is slidably connected with the fixing frame (2), the inner side of the protection frame (1) is rotationally connected with the ratchet body (8), and the ratchet body (8) is respectively connected with the first pawl (6) and the second pawl (7) in a meshed mode.

2. The bi-directional ratchet mechanism of claim 1, wherein: the ratchet wheel is characterized in that the front end of the ratchet wheel main body (8) is fixedly connected with a driving bevel gear (9), the right side of the driving bevel gear (9) is connected with a driven bevel gear (10) in a meshed mode, the right end of the driven bevel gear (10) is fixedly connected with a driving gear (11), and the rear end of the driving gear (11) is connected with a driven toothed plate (12) in a meshed mode.

3. The bi-directional ratchet mechanism of claim 1, wherein: the outer end of the fixed frame (2) is rotatably connected with a rotating block (13), and the rotating block (13) is fixedly connected with the screw rod (3).

4. The bi-directional ratchet mechanism of claim 1, wherein: the surface of the telescopic rod (5) is externally covered with a spring (14).

5. A bi-directional ratchet structure according to claim 2, wherein: the right end of the protection frame (1) is fixedly connected with a fixing plate (15), and the fixing plate (15) is rotationally connected with the driven bevel gear (10).

6. The bi-directional ratchet mechanism of claim 1, wherein: the gripping teeth of the first pawl (6) and the second pawl (7) are oppositely arranged.

7. The bi-directional ratchet mechanism of claim 1, wherein: the cross sections of the lifting block (4), the first pawl (6) and the second pawl (7) are rectangular.

8. The bi-directional ratchet mechanism of claim 1, wherein: the inside of the lifting block (4) is provided with a thread groove.