CN210057383U

CN210057383U - Carbon-free trolley in shape of double 8-shaped walking line

Info

Publication number: CN210057383U
Application number: CN201920319745.2U
Authority: CN
Inventors: 李智强; 李卫国; 王利利
Original assignee: Inner Mongolia University of Technology
Current assignee: Inner Mongolia University of Technology
Priority date: 2019-03-12
Filing date: 2019-03-12
Publication date: 2020-02-14
Anticipated expiration: 2029-03-12

Abstract

The utility model discloses a carbon-free trolley for walking a double 8-shaped path, which comprises a power mechanism, a transmission mechanism and a turning mechanism which are arranged on a frame, wherein the power mechanism comprises a support rod arranged on the frame, a square support plate is arranged at the top end of the support rod, a pulley bracket on a support top plate is provided with a variable torque pulley, one end of a cotton rope is connected with a heavy hammer, and the other end of the cotton rope is wound in a winding groove of a reel shaft of the transmission mechanism by bypassing the pulley; the transmission mechanism comprises a line shaft and a wheel shaft, the line shaft is provided with a main transmission gear, the other end of the line shaft is connected with the cam through a bearing, the large wheel shaft is provided with a driven gear, one end of the large wheel shaft is connected with a large wheel, and the small wheel shaft is independently connected with a small wheel; the steering mechanism comprises a cam, the cam is connected with a sliding rail assembly through a connecting rod, a fine adjustment mechanism is arranged at the front end of the sliding rail assembly, a steering crank is connected below the fine adjustment mechanism, and a front wheel support is arranged below the steering crank and is assembled to steer a front wheel through a bearing. The utility model discloses simple structure, easily processing preparation, barrier is kept away in the circulation of two 8 characters of realization that can be good.

Description

Carbon-free trolley in shape of double 8-shaped walking line

Technical Field

The utility model relates to a carbon-free trolley technical field specifically is a carbon-free trolley of walking two 8 fonts.

Background

The carbon-free trolley with the double 8-shaped structure is a new production project specified in recent years for national engineering training and comprehensive ability competition. The competition field is a standard half of table tennis table, and during competition, the trolley converts gravitational potential energy of falling of the heavy hammer into mechanical energy, so that the trolley sequentially bypasses three barrier piles on the central line and circularly runs according to a double-8-shaped track, and the score is evaluated according to the number of turns of successfully completing double-8-shaped bypassing of the trolley.

The carbon-free trolley with the double-8-shaped walking is a new competition item which is put forward on the basis of the original 8-shaped walking, and the existing carbon-free trolley with the double-8-shaped walking is few; usually, a multi-stage gear is adopted, the structure is complex, and the multi-stage gear is not easy to disassemble and assemble during a match; the processing is difficult, and the integral manufacturing cost is high; some trolleys are troublesome to adjust due to complex mechanisms, the trolleys deviate from tracks after walking for several circles, and the trolleys cannot well realize double-8-shaped track walking.

Disclosure of Invention

The to-be-solved technical problem of the utility model is not enough to among the prior art, provide a carbon-free dolly of walking two 8 fonts, simple structure, easily preparation, install and remove the convenience and can stably press two 8 word walks to effectively solve the problem among the prior art.

In order to solve the technical problem, the utility model discloses the technical scheme who takes as follows: a carbon-free trolley in a double-8 shape comprises a power mechanism, a transmission mechanism and a direction changing mechanism which are arranged on a trolley frame, wherein the power mechanism comprises a plurality of support rods arranged on the trolley frame, a square support top plate is arranged at the top ends of the support rods, a variable torque pulley is arranged on the support top plate, a wire rope is wound on the variable torque pulley, one end of the wire rope is connected with a heavy hammer, and the other end of the wire rope is wound in a winding groove of a winding shaft of the transmission mechanism; the transmission mechanism comprises a winding shaft and a wheel shaft, the winding shaft is supported by bearing supports at two ends, one end of the winding shaft is provided with a main transmission gear, the other end of the winding shaft is provided with a cam through a bearing flange, the bearing supports are arranged on a frame, the wheel shaft comprises a large wheel shaft and a small wheel shaft, a driven gear is arranged on the large wheel shaft and is in meshing transmission with a driving gear, one end of the large wheel shaft is connected with the large wheel through a bearing, the small wheel shaft is supported by a small wheel bearing support, one end of the small wheel is provided with a small wheel, the winding shaft is in transmission matched with the large wheel shaft to drive the large wheel to rotate; the steering mechanism comprises a cam arranged on the winding shaft, the cam is connected with a guide rail through a short shaft, the guide rail is nested in a sliding block, the sliding block is arranged on a sliding block support, the front end of the guide rail is fixedly connected with a fine adjustment assembly, the lower end of the fine adjustment assembly is connected with a steering crank, and a steering bearing drives a front fork in a front wheel support to steer a steering front wheel; the cam rotates to drive the guide rail to slide, the fine adjustment assembly, the steering crank and the front fork drive the steering front wheel to rotate, and the trolley travels along the double-8 shape by combining the rotation of the large wheel and the small wheel.

Furthermore, the winding shaft, the large wheel shaft and the small wheel shaft are all assembled on the frame through bearing supports, the axes of the three shafts are located on the same vertical plane, and the driving gear and the driven gear are arranged on the shafts through flange plates.

Furthermore, a large wheel is arranged at the outer end of the large wheel shaft, the large wheel, the driven gear and the cam rotate synchronously, a small wheel is arranged on the small wheel shaft and is independently assembled, holes for transmitting torque are formed in the large wheel and the small wheel, and a trapezoidal chamfer is arranged at the edge of the wheel.

Furthermore, the fine adjustment assembly further comprises a fine adjustment sliding block, the fine adjustment assembly and the fine adjustment sliding block are of an equal-stroke integrated structure, the lower portion of the fine adjustment sliding block is connected with a steering crank through a bearing, and the steering crank is connected with a front fork which is vertically installed.

Further, the cam is an inner groove disc cam, and the cam is connected with the guide rail through a short shaft.

Adopt technical scheme after, bring following beneficial effect:

the carbon-free trolley with the double-8-shaped structure has a simple structure, is easy to process and manufacture, and saves the cost; the number of parts is small, the kinematic pair is small, and the disassembly, assembly and debugging are convenient; the fine adjustment component and the fine adjustment sliding block are integrated, and the trolley can stably walk according to a double 8-shaped cycle.

Drawings

Fig. 1 is a perspective view of the carbon-free cart of the present invention;

FIG. 2 is a perspective view of another portion of the carbonless cart of the present invention;

FIG. 3 is a diagram of a trim assembly

In the figure: 1. torque-variable pulley, 2, supporting top plate, 3, supporting rod, 4, bull wheel, 5, driving gear, 6, bearing support, 7, winding shaft, 8, cam, 9, bearing flange, 10, slide block support, 11, slide block, 12, stub shaft 13, guide rail, 14, small wheel bearing support, 15, wheel flange, 16, small wheel shaft, 17, small wheel, 18, frame, 19, steering front wheel shaft, 20, steering front wheel, 21, front fork, 22, front wheel support, 23, steering crank, 24, fine-tuning slide block, 25, fine-tuning assembly, 26, guide groove, 27, bull wheel shaft, 28, driven gear, 29, flange plate, 30, weight, 31 and string.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

Referring to fig. 1 and 2, a specific embodiment of a double-8-shaped carbon-free trolley can well realize the movement of a designated track, the carbon-free trolley is a three-wheeled trolley, two rear wheels of the trolley are driving wheels, and a front wheel is a guide wheel. Referring to fig. 1 and fig. 2, the carbon-free trolley comprises a frame 18, and a power mechanism, a transmission mechanism and a direction changing mechanism which are assembled on the frame, wherein the power mechanism comprises four vertically fixed support rods 3 which are arranged on the frame 18 and are connected in a square manner, a square support top plate 2 is arranged at the top end of each support rod 3, two lugs for mounting a bearing are arranged on the support top plate, the support top plate is of an integrated structure, the two lugs are used for mounting pulley shafts to mount variable torque pulleys 1, each variable torque pulley 1 is trapezoidal, a cord 31 is wound on each variable torque pulley, one end of the cord is connected with a heavy hammer 30, and the other end of the cord is wound in a winding groove of a winding shaft 7 of the; the transmission mechanism comprises a winding shaft 7 and two wheel shafts, the winding shaft is arranged on a bearing support 6, the two bearing supports 6 are fixed on a frame 18, one end of the winding shaft 7 extends out of the bearing support and is fixedly connected with a driving gear 5, the other end of the winding shaft is connected with a cam 8 through a bearing flange 9, the wheel shafts comprise a large wheel shaft 27 and a small wheel shaft 16, the large wheel shaft 27 is arranged on the two bearing supports 6, the small wheel shaft is arranged on the bearing support 6 and a small wheel bearing support 14, a driven gear 28 is arranged on the large wheel shaft 27 and is in meshing transmission with the driving gear 5, the driven gear 28 is arranged right below the driving gear 5, one end of the large wheel shaft 27 close to the driven gear 28 is connected with the large wheel, the outer end of the small wheel shaft close to the frame 18 is connected with the small wheel 17, the large wheel and the small; the turning mechanism comprises a cam 8 arranged on a line shaft, the cam 8 is an inner groove disc-shaped cam, the cam is manufactured according to the requirement of trolley movement, a short shaft 12 is embedded in a groove of the cam 8, the outer end of the short shaft is connected with a guide rail 13, the guide rail is embedded in a slide block 11, slider 11 is fixed on slider support 10, slider support 10 installs on frame 18, guide rail 13 front end and fine setting subassembly 25 fixed connection, fine setting subassembly 25 is connected through the lead screw with fine setting slider 24, fine setting slider can remove on the lead screw, fine setting subassembly 25 and fine setting slider 24 all make integral type structure and prevent to influence the linkage effect when the dolly motion, the lower extreme of fine setting slider is connected and is turned to crank 23, turn to crank 23 and front fork 21 vertical installation, front fork 21 passes through front wheel axle installation front wheel 20, front fork and the common dress of turning to the front wheel are in front wheel support 22, the front wheel support mounting is on frame 18.

As shown in the combined figure 3, the adjusting mechanism is made into an integrated structure, when the movement track of the trolley deviates, the relative position of the fine adjustment component 25 and the fine adjustment slide block 24 is simply adjusted, so that the rotation angle of the front wheel 20 can be changed, the trolley can walk according to a specified path without complex operation, the whole structure of the trolley is simple, the assembly and the disassembly are convenient, the linkage effect is good, and the understanding, the study and the manufacture are convenient.

The specific motion of this carbon-free trolley is that weight 30 falls, drive torque-variable pulley 1 through cotton rope 31 and rotate, and then drive spool 7 and epaxial driving gear 5 clockwise rotation, driving gear and driven gear 28 meshing transmission, make driven gear and bull wheel axle 27 anticlockwise rotation and then drive bull wheel 4 and rotate, the rotation of bull wheel makes whole frame 18 remove and then drive steamboat 17 and rotate, when spool 7 rotates, cam 8 and driving gear synchronous rotation, cam rotation drives guide rail 13 and carries out periodic slip, and make through fine setting subassembly 25 and fine setting slider 24 and turn to the periodic swing of crank 23, thereby drive and turn to front wheel 22 and turn to, the regular turning of front wheel combines the curvilinear motion that bull wheel 4 and steamboat 17 radius difference produced, make carbon-free trolley walk around two 8 characters.

The utility model discloses a carbon-free dolly of two 8 fonts is walked, above only do the utility model discloses a preferred embodiment should point out, to the ordinary technical personnel in this field, not deviating from the utility model discloses under the prerequisite of structural principle, can also make multiple deformation and improvement, this should also be regarded as the utility model discloses a protection scope.

Claims

1. The utility model provides a walk carbonless dolly of two 8 fonts, includes power unit, drive mechanism and steering mechanism, its characterized in that: the power mechanism comprises a plurality of support rods (3) arranged on the frame, a square support top plate (2) is arranged at the top end of each support rod, a variable torque pulley (1) is arranged on each support top plate, a wire rope (31) is wound on each variable torque pulley, one end of each wire rope is connected with a heavy hammer (30), and the other end of each wire rope is wound in a winding groove of a winding shaft (7) of the transmission mechanism; the transmission mechanism comprises a winding shaft (7) and a wheel shaft, the winding shaft is supported by bearing supports (6) at two ends, a driving gear (5) is installed at one end of the winding shaft, a cam (8) is installed at the other end of the winding shaft through a bearing flange (9), the wheel shaft comprises a large wheel shaft (27) and a small wheel shaft (16), the two shafts are installed on the bearing supports, a driven gear (28) is arranged on the large wheel shaft (27) and is in meshing transmission with the driving gear (5), one end of the large wheel shaft is connected with a large wheel (4) through a bearing, the small wheel shaft (16) is supported by a small wheel bearing support (14), a small wheel (17) is installed at one end of the small wheel shaft, the winding shaft is in transmission matching with the large wheel shaft to drive the large; the steering mechanism comprises a cam (8) arranged on a line shaft, the cam is connected with a guide rail (13) through a short shaft (12), the guide rail is nested in a sliding block (11), the sliding block is arranged on a sliding block support (10), the front end of the guide rail (13) is fixedly connected with a fine adjustment component (25), the lower end of the fine adjustment component is connected with a steering crank (23), and the steering crank drives a front fork (21) in a front wheel support (22) to steer a steering front wheel (20); the cam (8) rotates to drive the guide rail (13) to slide, the steering front wheel is driven to rotate through the fine adjustment assembly (25), the steering crank (23) and the front fork (21), and the trolley travels along the double-8 shape by combining the rotation of the large wheel (4) and the small wheel (17).

2. The carbon-free trolley in the shape of a double 8 is characterized in that the winding shaft (7), the large wheel shaft (27) and the small wheel shaft (16) are all assembled on the trolley frame (18) through bearing supports, the axes of the three shafts are located on the same vertical plane, and the driving gear (5) and the driven gear (28) are arranged on the shafts through flanges (29).

3. The carbon-free trolley shaped like a double-8 in the patent claim 2 is characterized in that a big wheel (4) is arranged on a big wheel shaft (27), the big wheel, a driven gear (28) and a cam (8) rotate synchronously, a small wheel (17) is arranged on a small wheel shaft (16), the small wheels are assembled independently, holes for transmitting torque are formed in the big wheel and the small wheels, and the wheel edges are provided with trapezoidal chamfers.

4. The double-8-shaped carbon-free trolley according to claim 1, wherein the fine adjustment assembly (25) further comprises a fine adjustment slider (24), the fine adjustment assembly and the fine adjustment slider are of an equal-stroke integrated structure, the lower portion of the fine adjustment slider (24) is connected with a steering crank (23) through a bearing, and the steering crank is connected with a front fork (21) which is vertically installed.

5. The carbon-free trolley with the double-walking 8-shaped structure is characterized in that the cam (8) is an inner groove disc-shaped cam, and the cam (8) is connected with the guide rail (13) through a short shaft.