CN217977236U - Speed change structure of pyramid transmission mechanism - Google Patents

Abstract

The utility model relates to a mechanical transmission technical field just discloses a pyramid drive mechanism's variable speed structure, rotate the piece including the cylindricality, the outside that the cylindricality rotated the piece is provided with footstep bearing, footstep bearing's the outside is provided with the speed governing support, the lower extreme fixed mounting of speed governing support has the pyramid support, the upside of pyramid support is provided with the pyramid subassembly. This speed change structure of pyramid drive mechanism, pyramid subassembly upper end and speed governing leg joint, pyramid subassembly lower extreme and pyramid leg joint, the cylindricality rotates the piece and passes through linear footstep bearing with the speed governing support and be connected, when pyramid subassembly high-speed operation, through outside speed governing part, the drive cylindricality rotates the piece along radial rotation, rotate along with the cylindricality, footstep bearing steel ball upwards or downstream in the cylindricality rotates the piece helicla flute, synchronous drive pyramid subassembly, the speed governing support, whole upwards or downstream such as pyramid support, realize the variable speed function.

Description

Speed change structure of pyramid transmission mechanism

Technical Field

The utility model relates to a mechanical transmission technical field specifically is a speed change structure of pyramid drive mechanism.

Background

The mechanical transmission mechanism can change the motion mode, direction or speed provided by power and is purposefully utilized by people, and the mechanical transmission can be divided into the following parts according to the force transmission mode: friction drive, chain drive, gear drive, belt drive, worm and gear drive, ratchet drive, crankshaft connecting rod drive, pneumatic drive, hydraulic drive, universal joint drive, wire rope drive, coupling drive, and the like.

At present, in a mechanical transmission structure, speed change is generally performed through a speed changer, the speed changer is complex in structure, high in precision and high in manufacturing cost, and therefore the speed change structure of a pyramid transmission mechanism is urgently needed to be designed.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

An object of the utility model is to provide a volley drive mechanism's variable speed structure to solve the problem that proposes among the above-mentioned background art.

(II) technical scheme

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a speed change structure of pyramid drive mechanism, includes that the cylindricality rotates the piece, the outside that the cylindricality rotated the piece is provided with footstep bearing, footstep bearing's the outside is provided with the speed governing support, the lower extreme fixed mounting of speed governing support has the pyramid support, the upside of pyramid support is provided with the pyramid subassembly, the top of pyramid subassembly is provided with input driving piece two.

Preferably, the outer side of the cylindrical rotating part is provided with a spiral track, the thrust bearing is positioned on the outer side of the spiral track, and the thrust bearing steel ball moves upwards or downwards in the spiral groove of the cylindrical rotating part to synchronously drive the whole of the pyramid component, the speed regulating bracket, the pyramid bracket and the like to move upwards or downwards, so that the speed change function is realized.

Preferably, the drive flywheel subassembly is installed through the bearing in the outside that the cylindricality rotated the piece, the bottom block of drive flywheel subassembly is connected with input driving piece one, the bottom of input driving piece one is provided with input ball retainer assembly, input driving piece two is located the bottom of input ball retainer assembly.

Preferably, the inner side of the pyramid support is sequentially provided with a first output driving part, a first output ball retainer assembly and a second output driving part from top to bottom.

Preferably, a plurality of convex tenons are distributed on the outer ring of the driving flywheel assembly in an annular array mode, a plurality of notches are formed in the inner ring of the first input driving piece, and the convex tenons are clamped on the inner sides of the notches.

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

this speed change structure of pyramid drive mechanism, pyramid subassembly upper end and speed governing leg joint, pyramid subassembly lower extreme and pyramid leg joint, the cylindricality rotates the piece and passes through linear footstep bearing with the speed governing support and be connected, when pyramid subassembly high-speed operation, through outside speed governing part, the drive cylindricality rotates the piece along radial rotation, rotate along with the cylindricality, footstep bearing steel ball upwards or downstream in the cylindricality rotates the piece helicla flute, synchronous drive pyramid subassembly, the speed governing support, whole upwards or downstream such as pyramid support, realize the variable speed function.

Drawings

FIG. 1 is a schematic view of the thrust bearing mounting structure of the present invention;

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

fig. 3 is a schematic diagram of the medium speed adjusting structure of the present invention;

FIG. 4 is a schematic view of the low-speed adjustment structure of the present invention;

FIG. 5 is a schematic view of the high-speed adjustment structure of the present invention;

fig. 6 is a schematic view of the cylindrical rotating member of the present invention.

In the figure: 1. a cylindrical rotating member; 2. a drive flywheel assembly; 3. inputting a driving piece I; 4. an input ball cage assembly; 5. inputting a driving piece II; 6. a pyramid component; 7. a first output driving member; 8. an output ball cage assembly; 9. a second output driving member; 10. a pyramid bracket; 11. a speed regulation bracket; 12. and a thrust bearing.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-6, the present invention provides a technical solution: a speed change structure of a pyramid transmission mechanism comprises a cylindrical rotating part 1, wherein a thrust bearing 12 is arranged on the outer side of the cylindrical rotating part 1, a speed regulation support 11 is arranged on the outer side of the thrust bearing 12, a pyramid support 10 is fixedly installed at the lower end of the speed regulation support 11, a pyramid assembly 6 is arranged on the upper side of the pyramid support 10, an input driving part II 5 is arranged at the top of the pyramid assembly 6, the pyramid assembly 6 needs to be kept stable in operation, the upper end of the pyramid assembly 6 is connected with the speed regulation support 11, the lower end of the pyramid assembly 6 is connected with the pyramid support 10, and the cylindrical rotating part 1 is connected with the speed regulation support 11 through a linear thrust bearing 12;

the outer side of the cylindrical rotating part 1 is provided with a spiral track, the thrust bearing 12 is positioned on the outer side of the spiral track, the cylindrical rotating part 1 is driven to rotate along the radial direction through an external speed regulating component, and a steel ball of the thrust bearing 12 moves upwards or downwards in a spiral groove of the cylindrical rotating part 1 along with the rotation of the cylindrical rotating part 1, so that the whole of the pyramid component 6, the speed regulating bracket 11, the pyramid bracket 10 and the like are driven to move upwards or downwards synchronously, and the speed changing function is realized;

drive flywheel subassembly 2 is installed through the bearing in the outside that cylindricality rotated piece 1, the bottom block of drive flywheel subassembly 2 is connected with input drive piece one 3, the bottom of input drive piece one 3 is provided with input ball holder subassembly 4, input drive piece two 5 are located the bottom of input ball holder subassembly 4, the inboard of awl support 10 has set gradually output drive piece one 7 from last to down, output ball holder subassembly 8, output drive piece two 9, the outer lane annular array distribution of drive flywheel subassembly 2 has a plurality of protruding falcons, a plurality of breachs have been seted up to the inner circle of input drive piece one 3, protruding falcon block is in the inboard of breach.

The working principle is as follows: firstly, in order to realize the functional requirements, the operation stability of the pyramid component 6 needs to be kept, the upper end of the pyramid component 6 is connected with the speed regulation bracket 11, the lower end of the pyramid component 6 is connected with the pyramid bracket 10, the cylindrical rotating part 1 is connected with the speed regulation bracket 11 through the linear thrust bearing 12, when the pyramid component 6 operates at a high speed, the cylindrical rotating part 1 is driven to rotate along the radial direction through an external speed regulation component, along with the rotation of the cylindrical rotating part 1, a steel ball of the thrust bearing 12 moves upwards or downwards in a spiral groove of the cylindrical rotating part 1, the pyramid component 6, the speed regulation bracket 11, the pyramid bracket 10 and the like are synchronously driven to move upwards or downwards, and the speed change function is realized;

assuming that the angular velocity of rotation of the pyramid is W1, the linear velocity of input is V (input) = h1 × W1, the linear velocity of output is V (output) = h2 × W1,

when the pyramid assembly is moved to h1= h2, vout is the same as vin, the product is in a medium speed state,

when the pyramid component moves to h1> h2, the V output is larger than the V input, the product moves to a low-speed state, and when the pyramid component moves to a limit position, the product is at the lowest speed;

when the pyramid component moves to h1< h2, the V output is smaller than the V input, the product moves to a high-speed state, when the pyramid component moves to a limit position, the product is at the highest speed, and the speed regulating angle from the low speed to the high speed reaches about 135 degrees.

It should be finally noted that the above only serves to illustrate the technical solution of the present invention, and not to limit the scope of the present invention, and that simple modifications or equivalent replacements performed by those skilled in the art to the technical solution of the present invention do not depart from the spirit and scope of the technical solution of the present invention.

Claims (5)

1. The utility model provides a pyramid drive mechanism's variable speed structure, includes that the cylindricality rotates piece (1), its characterized in that: the cylindrical rotor is characterized in that a thrust bearing (12) is arranged on the outer side of the cylindrical rotor (1), a speed regulation support (11) is arranged on the outer side of the thrust bearing (12), a pyramid support (10) is fixedly mounted at the lower end of the speed regulation support (11), a pyramid component (6) is arranged on the upper side of the pyramid support (10), and an input driving part II (5) is arranged at the top of the pyramid component (6).

2. The speed change structure of an awl-type transmission according to claim 1, wherein: the outer side of the cylindrical rotating part (1) is provided with a spiral track, and the thrust bearing (12) is positioned on the outer side of the spiral track.

3. The speed change structure of an awl-type transmission according to claim 1, wherein: the utility model discloses a ball bearing assembly, including cylindricality rotation piece (1), drive flywheel subassembly (2) are installed through the bearing in the outside of cylindricality rotation piece (1), the bottom block of drive flywheel subassembly (2) is connected with input driving piece (3), the bottom of input driving piece (3) is provided with input ball retainer subassembly (4), input driving piece two (5) are located the bottom of input ball retainer subassembly (4).

4. The speed change structure of an awl-type transmission according to claim 1, wherein: the inner side of the pyramid support (10) is sequentially provided with a first output driving part (7), a first output ball retainer assembly (8) and a second output driving part (9) from top to bottom.

5. The speed change structure of an awl-type transmission according to claim 3, wherein: a plurality of protruding falcon are distributed to the outer lane annular array of drive flywheel subassembly (2), a plurality of breachs have been seted up to the inner circle of input driving piece (3), protruding falcon block is in the inboard of breach.

Images