CN203162121U

CN203162121U - Automobile gearshift mechanism

Info

Publication number: CN203162121U
Application number: CN 201320143505
Authority: CN
Inventors: 钱高法
Original assignee: NINGBO GAOFA AUTOMOBILE CONTROL SYSTEM CO Ltd
Current assignee: NINGBO GAOFA AUTOMOBILE CONTROL SYSTEM CO Ltd
Priority date: 2013-03-27
Filing date: 2013-03-27
Publication date: 2013-08-28
Anticipated expiration: 2023-03-27

Abstract

The utility model provides an automobile gearshift mechanism and belongs to the technical field of automobiles. The automobile gearshift mechanism solves the problem that an existing gearshift mechanism is not stable enough. The automobile gearshift mechanism comprises a base, a countershaft, a gear selecting and shifting swing arm and a gear shifting arm installed on the gear selecting and shifting swing arm, and further comprises a universal device. The universal device is provided with a long shaft and a short shaft which are arranged perpendicular to each other, bearings and bearing pedestals for installing the bearing are arranged at the two ends of the long shaft, and the long shaft is installed on the base through the bearing pedestals; gear selecting arms capable of rotating around the long shaft are arranged on the portions, on the inner sides of the two bearing pedestals, of the long shaft in a sleeved mode respectively, each gear selecting arm is provided with an output end and a transmission end, the middle of each gear selecting arm is arranged on the long shaft in a sleeved mode, and a steel ball moving groove is formed in each transmission end; the gear selecting and shifting swing arm is installed on the short shaft, the countershaft is arranged on the gear selecting and shifting swing arm in a penetrating mode, steel balls are arranged at the two ends of the countershaft, and the two steel balls are installed in the two steel ball moving grooves respectively. The automobile gearshift mechanism has the advantages of being good in stability and long in service life.

Description

A kind of automobile gearshift mechanism

Technical field

The utility model belongs to automobile technical field, relates to a kind of automobile gearshift mechanism.

Background technique

Have now in automobile industry, realize the rotation speed change of motor car engine by the gearshift on the operation automobile, so stability and the quality of gearshift are had higher requirement.

Continuous progress along with science and technology, people have invented a kind of name and have been called " a kind of automobile soft shaft variable-speed manipulator that reduces the flexible axle bearing peak value ", the patent No. is ZL200910201916.2, notice of authorization number is CN101737486B, this variable-speed manipulator comprises manipulator base and the shifting combined mechanism that links to each other with operating handle in the installation of manipulator base, joystick shaft is on a left side that is parallel to main shaft, right or perpendicular to before the main shaft, the rear is to motion, described shifting combined mechanism comprises the shifting swing arm, the shifting rocking arm, main shaft, countershaft, angle of cut axle and steel ball, the main shaft two ends are provided with bearing and the bearing support of described bearing are installed, main shaft passes through the bearing support horizontal consolidation on the manipulator base, is furnished with the shifting rocking arm on the main shaft of diaxon bearing inboard, the shifting rocking arm is L shaped structure, one arm of two L shaped structures is provided with output terminals A, output terminal B, another arm is respectively equipped with the steel ball loose slot, the shifting swing arm is y-type structure, operating handle links to each other with an end of y-type structure, the prong portion of y-type structure is provided with perpendicular and passes through angle of cut axle and the countershaft that the shifting swing arm links to each other, wherein angle of cut axle vertically passes the alignment of shafts, and with the main shaft active link, the two ends of countershaft are provided with steel ball, and the steel ball spatial position is set in the steel ball loose slot of shifting rocking arm.Though this technological scheme can realize the adjusting control to engine speed well, but still exist some problems: mainly be that its angle of cut axle and countershaft axial play in real work that plays the major impetus gearing is big, cause the not enough and mild transmission poor effect of power of whole gearshift stability.

Summary of the invention

The purpose of this utility model is to have the problems referred to above at existing technology, thus proposed a kind of in real work good stability make power transmission continuity and milder automobile gearshift mechanism.

The purpose of this utility model can realize by following technical proposal: a kind of automobile gearshift mechanism, comprise base, countershaft, shifting swing arm and be installed in gear arm in the shifting swing arm, it is characterized in that: this gearshift also comprises universal device, described universal utensil has mutual vertically disposed major axis and minor axis, the major axis two ends are provided with bearing and the bearing support of described bearing are installed, major axis is installed on the above-mentioned base by bearing support, being arranged with respectively on the major axis of diaxon bearing inboard can be around the block selecting arm of major axis rotation, the medium position that the block selecting arm has output terminal and driving end and block selecting arm is set on the major axis, driving end is provided with the steel ball loose slot, above-mentioned shifting swing arm is installed on the above-mentioned minor axis, described countershaft is located in the shifting swing arm and two ends are provided with steel ball, and described two steel balls are installed in respectively in the two above-mentioned steel ball loose slots.

In above-mentioned a kind of automobile gearshift mechanism, the length of described major axis is than the length of minor axis.

In above-mentioned a kind of automobile gearshift mechanism, described block selecting arm is L shaped structure.

In above-mentioned a kind of automobile gearshift mechanism, have attachment hole on the output terminal on the described block selecting arm, the definition attachment hole is the outer end near that end of above-mentioned bearing support, the outer end of described attachment hole is shaped as circular hole, its inner end be shaped as with hex head bolt on the hexagonal screw that is complementary of nose shape.

In above-mentioned a kind of automobile gearshift mechanism, described base is that aluminum alloy material is made.

In above-mentioned a kind of automobile gearshift mechanism, have four through holes and four mounting holes on the described base, all be embedded with the threaded piece with female thread structure on described through hole and the mounting hole, in described four through holes of correspondence of above-mentioned bearing support two and diaxon bearing are fixedly mounted on respectively in four through holes by bolt respectively.

In above-mentioned a kind of automobile gearshift mechanism, described threaded piece is made by stainless steel material.

In above-mentioned a kind of automobile gearshift mechanism, the left and right direction motion that described gear arm is parallel to major axis is the block selecting campaign, the action of gear arm drives the shifting swing arm and rotates around minor axis, the shifting swing arm drives countershaft and rotates, the bidirectional swinging of the steel ball at countershaft two ends drives two block selecting arms respectively and swings around major axis, and two output terminals on the two block selecting arms produce and push away, draw incorgruous transmission.

In above-mentioned a kind of automobile gearshift mechanism, described gear arm is the gearshift motion perpendicular to the front and rear direction motion of major axis, the action of gear arm drives shifting swing arm, minor axis, countershaft, steel ball and two block selecting arms and swings together around major axis jointly, and two output terminals on the two block selecting arms produce and push away, draw transmission in the same way.

Compared with prior art, this automobile gearshift mechanism has following several advantage:

1, this automobile gearshift mechanism adopts universal device structure to substitute original main shaft and angle of cut axle construction, universal device structure is integral type, and main shaft and angle of cut axle are two independent structures, thereby axially play is more a little bit smaller relatively in real work for universal device, thereby stability is better, longer service life; Simultaneously, because universal device is a whole structure, in the gearshift assembling, also more save trouble conveniently, increase work efficiency;

2, the setting of the hexagonal Screw hole structure in the attachment hole on the output terminal of block selecting arm, making is fixedly mounted on the output terminal flexible axle convenient, improve installation efficiency, only need hex head bolt is extended through attachment hole, its head is stayed on the position of hexagonal screw, and its hexagonal screw can rotate in a circumferential direction to spacing its head that prevents of the head of hex head bolt, only needs a spanner that the other end that nut is tightened in hex head bolt is got final product, and do not need two spanners, very convenient and quick;

3, the material of making base adopts aluminum alloy to substitute original casting cast iron, and the one, lighter, the 2nd, moulding is made more convenient, improves production effect; Because the intensity of aluminum alloy material is not fine, its stainless threaded piece has guaranteed the intensity of bolt joint, makes to install to connect more firmly, stablize.

Description of drawings

Fig. 1 is perspective view of the present utility model.

Fig. 2 is another perspective view of the present utility model.

Fig. 3 is sectional view of the present utility model.

Among the figure, 1, base; 2, gear arm; 3, universal device; 31, major axis; 32, minor axis; 4, shifting swing arm; 5, countershaft; 51, steel ball; 6, block selecting arm; 61; Output terminal; 61a, attachment hole; 61b, hexagonal screw; 61c, circular hole; 62, steel ball loose slot; 7, bearing; 8, bearing support; 9, through hole; 10, mounting hole; 11, threaded piece.

Embodiment

Below be specific embodiment of the utility model and by reference to the accompanying drawings, the technical solution of the utility model is further described, but the utility model be not limited to these embodiments.

Shown in Fig. 1,2 and 3, this automobile gearshift mechanism comprises base 1, countershaft 5, universal device 3, shifting swing arm 4 and is installed in gear arm 2 in the shifting swing arm 4, base 1 is made for aluminum alloy material, and have four through holes 9 and four mounting holes 10 on the base 1, all be embedded with the threaded piece 11 with female thread structure on through hole 9 and the mounting hole 10, threaded piece 11 is made by stainless steel material.Aluminum alloy is convenient to casting and moulding, adopt aluminum alloy material to make the convenient and high efficiency of machine shaping, but the intensity of aluminum alloy material is not fine, joint for mechanical structure is higher to requirement of strength, thereby the words of insufficient strength can cause the joint stress deformation to produce the gap, insecure, stability is bad, in order to address this problem, the embedded threaded piece of being made by the bigger stainless steel material of intensity 11 is strengthened the intensity of its joint in through hole 9 and hole that mounting hole 10 grades are used for being connected, guarantee to connect between the mechanical structure firmly and stability, thereby stable when guaranteeing the work of whole gearshift and firmly.

Universal device 3 has mutual vertically disposed major axis 31 and minor axis 32, the length of major axis 31 is than the length of minor axis 32, major axis 31 two ends are provided with bearing 7 and in 8, one bearing supports of bearing support, 8 corresponding four through holes 9 of bearing 7 two and diaxon bearing 8 are installed and are fixedly mounted on respectively in four through holes 9 by bolt respectively.Major axis 31 is installed on the base 1 by bearing support 8, being arranged with respectively on the major axis 31 of diaxon bearing 8 inboards can be around the block selecting arm 6 of major axis 31 rotations, block selecting arm 6 is L shaped structure, the medium position that block selecting arm 6 has output terminal 61 and driving end and block selecting arm 6 is set on the major axis 31, driving end is provided with steel ball loose slot 62, have attachment hole 61a on the output terminal 61 on the block selecting arm 6, the outer end of attachment hole 61a is shaped as circular hole 61c, its inner end be shaped as with hex head bolt on the hexagonal screw 61b that is complementary of nose shape, hexagonal screw 61b structure makes installs that to connect flexible axle more convenient and quick.Shifting swing arm 4 is installed on the minor axis 32, and countershaft 5 is located in the shifting swing arm 4 and two ends are provided with steel ball 51, two steel balls 51 and are installed in respectively in the two steel ball loose slots 62.

The working principle of this automobile gearshift mechanism is as follows:

1, incorgruous

Operation gear arm 2 edges are parallel to the left and right direction of major axis 31 and move, gear arm 2 drives shifting swing arm 4 and rotates around minor axis 32, shifting swing arm 4 is rotated and is driven countershaft 5 rotations, steel ball 51 on countershaft 5 two ends drives two block selecting arms 6 respectively and swings in the opposite direction around major axis 31, two output terminals 61 on the two block selecting arms 6 produce respectively and push away, roping moving, realize the incorgruous transmission of flexible axle, i.e. block selecting campaign.

2, in the same way

Operation gear arm 2 is along moving perpendicular to the front and rear direction of major axis 31, thereby gear arm 2 drives shifting swing arm 4 drive minor axises 32, countershaft 5, steel ball 51 and two block selecting arms 6 and rotates together around major axis 31 jointly, its main shaft also self is also rotating under the support of bearings at both ends 7, two output terminals 61 on the two block selecting arms 6 produce the motion that pushes away or draw simultaneously, realize the transmission in the same way of flexible axle, i.e. gearshift motion.

3, two-way compound

According to above 2 described, a flexible axle pushes away during the block selecting campaign, a flexible axle draws, two flexible axles pushed away simultaneously or drew simultaneously when motion gearshift, realized that thus two flexible axles bear the load of block selecting and gearshift jointly.

Specific embodiment described herein only is that the utility model spirit is illustrated.The utility model person of ordinary skill in the field can make various modifications or replenishes or adopt similar mode to substitute described specific embodiment, but can't depart from spirit of the present utility model or surmount the defined scope of appended claims.

Claims

1. automobile gearshift mechanism, comprise base (1), countershaft (5), shifting swing arm (4) and be installed in gear arm (2) in the shifting swing arm (4), it is characterized in that: this gearshift also comprises universal device (3), described universal device (3) has mutual vertically disposed major axis (31) and minor axis (32), major axis (31) two ends are provided with bearing (7) and the bearing support (8) of described bearing (7) are installed, major axis (31) is installed on the above-mentioned base (1) by bearing support (8), being arranged with respectively on the major axis (31) of diaxon bearing (8) inboard can be around the block selecting arm (6) of major axis (31) rotation, the medium position that block selecting arm (6) has output terminal (61) and driving end and block selecting arm (6) is set on the major axis (31), driving end is provided with steel ball loose slot (62), above-mentioned shifting swing arm (4) is installed on the above-mentioned minor axis (32), described countershaft (5) is located in shifting swing arm (4) upward and two ends are provided with steel ball (51), and described two steel balls (51) are installed in respectively in the two above-mentioned steel ball loose slots (62).

2. a kind of automobile gearshift mechanism according to claim 1 is characterized in that, the length of described major axis (31) is than the length of minor axis (32).

3. a kind of automobile gearshift mechanism according to claim 2 is characterized in that, described block selecting arm (6) is L shaped structure.

4. according to claim 1 or 2 or 3 described a kind of automobile gearshift mechanisms, it is characterized in that, have attachment hole (61a) on the output terminal (61) on the described block selecting arm (6), definition attachment hole (61a) is the outer end near that end of above-mentioned bearing support (8), the outer end of described attachment hole (61a) is shaped as circular hole (61c), its inner end be shaped as with hex head bolt on the hexagonal screw (61b) that is complementary of nose shape.

5. a kind of automobile gearshift mechanism according to claim 4 is characterized in that, described base (1) is made for aluminum alloy material.

6. a kind of automobile gearshift mechanism according to claim 5, it is characterized in that, have four through holes (9) and four mounting holes (10) on the described base (1), all be embedded with the threaded piece (11) with female thread structure on described through hole (9) and the mounting hole (10), in above-mentioned (8) described four through holes of correspondence of bearing support (9) two and diaxon bearing (8) are fixedly mounted on respectively in four through holes (9) by bolt respectively.

7. a kind of automobile gearshift mechanism according to claim 6 is characterized in that, described threaded piece (11) is made by stainless steel material.

8. a kind of automobile gearshift mechanism according to claim 7, it is characterized in that, the left and right direction motion that described gear arm (2) is parallel to major axis (31) is the block selecting campaign, the action of gear arm (2) drives shifting swing arm (4) and rotates around minor axis (32), shifting swing arm (4) drives countershaft (5) and rotates, the bidirectional swinging of the steel ball (51) at countershaft (5) two ends drives two block selecting arms (6) respectively around major axis (31) swing, and two output terminals (61) on the two block selecting arms (6) produce and push away, draw incorgruous transmission.

9. a kind of automobile gearshift mechanism according to claim 7, it is characterized in that, described gear arm (2) is the gearshift motion perpendicular to the front and rear direction motion of major axis (31), the action of gear arm (2) drives shifting swing arm (4), minor axis (32), countershaft (5), steel ball (51) and two block selecting arms (6) and swings together around major axis (31) jointly, and two output terminals (61) on the two block selecting arms (6) produce and push away, draw transmission in the same way.