CN214743272U - Reverse gear intermediate shaft - Google Patents

Abstract

The utility model provides a reverse gear jackshaft belongs to reverse gear structure assembly technical field. It has solved the problem of the assembly of current inconvenient reverse gear jackshaft assembly. This reverse gear jackshaft is including being cylindric reverse gear axis body, and the left end spiro union of reverse gear axis body has the spindle nose nut, and the right-hand member of reverse gear axis body is provided with the reverse gear packing ring, and the axial assembly can be dismantled in the right-hand member of reverse gear axis body to the reverse gear packing ring, is provided with the limit structure who prevents reverse gear packing ring circumferential direction on the reverse gear axis body between this reverse gear packing ring and the reverse gear axis body. The utility model has the advantages of reasonable design, simply, it is fixed that reverse gear packing ring assembles circumference on reverse gear shaft body, realizes reverse gear shaft body circumferential direction location, can effectively prevent during the assembly spindle nose nut that reverse gear shaft body rotates, and circumference limit structure is stable, assembles convenient to use, has improved the assembly efficiency in workshop greatly.

Description

Reverse gear intermediate shaft

Technical Field

The utility model belongs to the technical field of reverse gear structure assembly, a reverse gear jackshaft is related to.

Background

The gear shifting of the gearbox is realized by controlling the engagement and the disengagement of different gears of the gearbox through an operating mechanism so as to change the transmission ratio of power transmission. The gear shifting mode of the gearbox comprises meshing sleeve gear shifting and sliding gear shifting. The reverse gear is realized by the intervention of a reverse gear intermediate shaft gear, so that the direction of power transmission is changed by 180 degrees.

At present, a gearbox with a reverse gear intermediate shaft structure does not circumferentially limit a reverse gear intermediate shaft and a cup type reverse gear gasket combined structure, and the reverse gear intermediate shaft and cup type reverse gear gasket combined structure is axially sleeved and assembled for years, but is not perfect. Due to structural limitation, when the spindle head nut is screwed in the process of assembling the reverse gear intermediate shaft assembly in a workshop, the intermediate shaft can rotate along with the spindle head nut, so that the whole assembling process is time-consuming and labor-consuming; as workshop assembly is in assembly line type operation, the structure greatly reduces the working efficiency of the whole assembly workshop and further influences the production efficiency of a company.

Disclosure of Invention

The utility model aims at the above-mentioned problem that exists among the prior art, provide a simple structure, make things convenient for the assembly to reverse gear jackshaft assembly structure, can effectively prevent to reverse gear jackshaft when the assembly and rotate, improved workshop assembly efficiency's the jackshaft that reverses gear greatly.

The purpose of the utility model can be realized by the following technical proposal: the utility model provides a reverse gear jackshaft, is including being cylindric reverse gear axis body, the left end spiro union of reverse gear axis body have a spindle nose nut, the right-hand member of reverse gear axis body be provided with reverse gear packing ring, its characterized in that, reverse gear packing ring can dismantle the right-hand member of axial assembly in reverse gear axis body, be provided with between this reverse gear packing ring and the reverse gear axis body and prevent reverse gear packing ring circumferential direction's on reverse gear axis body limit structure.

This reverse gear jackshaft mainly changes the axial assembly mode of reverse gear packing ring and reverse gear axis body, changes the assembly mode of reverse gear packing ring and reverse gear axis body into can dismantle fixed Assembly, and when both can dismantle fixed Assembly, sets up limit structure, makes reverse gear packing ring circumferential direction obtain better injecing, stable in structure, convenient assembling on the reverse gear axis body through limit structure.

In the reverse gear intermediate shaft, the right end of the reverse gear shaft body is provided with the annular flange, the annular flange and the right end of the reverse gear shaft body form an axial assembly position, the reverse gear gasket is axially sleeved on the axial assembly position, a connection blind hole is formed in the middle position of the right end of the reverse gear shaft body, when the reverse gear gasket is sleeved on the axial assembly position, a fastening piece is spirally connected in the connection blind hole, and the fastening piece and the reverse gear gasket are axially abutted. The reverse gear washer is arranged to prevent the reverse gear washer from axially displacing on the reverse gear shaft body, and the structural stability is high.

In the reverse intermediate shaft, the fastening member comprises an annular ring and a fastening bolt with a head, the fastening bolt is screwed and fastened in the connecting blind hole through the annular ring, the outer diameter of the annular ring is larger than that of the reverse shaft body, and the annular ring and the reverse washer are axially abutted and matched. The annular ring and the reverse gear gasket are axially abutted against the friction force to prevent the annular ring and the reverse gear gasket from rotating relatively.

In the reverse gear intermediate shaft, the free end of the fastening bolt is embedded with the elastic rubber layer, and when the fastening bolt is screwed and fastened in the connecting blind hole, the elastic rubber layer is elastically abutted and matched with the bottom of the connecting blind hole. The fastening bolt has axial elastic force under the elastic action of the elastic rubber layer, and the axial elastic force of the fastening bolt causes the fastening bolt not to be loosened easily in the connecting blind hole.

In the reverse gear intermediate shaft, the limit structure comprises a first convex nail axially and outwards arranged on the end surface of the right end of the reverse gear shaft body at intervals in the circumferential direction, the end surface of the outer end of the reverse gear gasket is circumferentially and alternately provided with a second convex nail which is axially and convexly arranged, the inner end surface of the annular ring is circumferentially and alternately provided with a first inner groove, the inner grooves I are circumferentially connected to form an inner ring, the inner grooves I are axially opposite to the convex nails I one by one, inner grooves II are circumferentially distributed on the inner end surface of the annular ring at intervals, the second inner grooves are circumferentially connected to form an outer ring, the second inner grooves are axially opposite to the second convex nails one by one, when the annular ring is axially abutted against the reverse gear shaft body and the reverse gear gasket, the first convex nail is inserted into the corresponding first inner groove, and the second convex nail is inserted into the corresponding second inner groove, so that the reverse gear washer is circumferentially limited on the reverse gear shaft body. The purpose that sets up like this can prevent effectively that the backing washer from circumferential direction on the reverse gear axis body, axial simple to operate.

In the reverse gear intermediate shaft, the outer end faces of the first convex nail and the second convex nail are arc end faces. The purpose of the arrangement is to facilitate the axial assembly of the first convex nail and the corresponding first inner groove, the second convex nail and the corresponding second inner groove.

In the reverse gear intermediate shaft, the head of the fastening bolt is of a semicircular structure, and a rectangular bulge is arranged in the middle of the vertical side wall in the middle of the head of the fastening bolt. The purpose of this setting is to prevent that fastening bolt is opened by general purpose tool spiral, has the effect of preventing the mistake and opening.

Compared with the prior art, the reverse gear intermediate shaft has the advantages that: structural design is reasonable, simple, and it is fixed that reverse gear packing ring assembles circumference on reverse gear shaft body, realizes reverse gear shaft body circumference location, can effectively prevent reverse gear shaft body rotation when assembling spindle nose nut, and circumference limit structure is stable, assembles convenient to use, has improved the assembly efficiency in workshop greatly.

Drawings

Fig. 1 is an exploded perspective view of the reverse countershaft.

FIG. 2 is a cross-sectional, exploded view of the reverse countershaft.

In the figure, 1, a reverse gear shaft body; 2. a spindle nose nut; 3. a reverse gear washer; 4. an annular flange; 5. connecting the blind holes; 6. an annular ring; 7. a head portion; 8. fastening a bolt; 9. an elastic rubber layer; 10. a first convex nail; 11. a second convex nail; 12. a first inner groove; 13. a second inner groove; 14. and a rectangular protrusion.

Detailed Description

The following are specific embodiments of the present invention and the accompanying drawings are used to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

As shown in fig. 1 and 2, this reverse gear jackshaft mainly comprises being cylindric reverse gear axis body 1, and reverse gear axis body 1's left end threaded connection has spindle nose nut 2, and reverse gear axis body 1's right-hand member is provided with reverse gear packing ring 3, and reverse gear packing ring 3 can dismantle the axial assembly in reverse gear axis body 1's right-hand member, specifically says so: the right end of the reverse gear shaft body 1 is provided with an annular flange 4, the annular flange 4 and the right end of the reverse gear shaft body 1 form an axial assembly position, a reverse gear gasket 3 is axially sleeved on the axial assembly position, a connecting blind hole 5 is arranged in the middle of the right end of the reverse gear shaft body 1, when the reverse gear gasket 3 is sleeved on the axial assembly position, a fastening piece is spirally connected in the connecting blind hole 5, and the fastening piece is axially abutted against the reverse gear gasket 3; in practical application, the fastening piece mainly comprises an annular ring 6 and a fastening bolt 8 with a head 7, the fastening bolt 8 penetrates through the annular ring 6 to be screwed and fastened in the connecting blind hole 5, the outer diameter of the annular ring 6 is larger than that of the reverse gear shaft body 1, the annular ring 6 and the reverse gear washer 3 are axially abutted and matched, an elastic rubber layer 9 is embedded at the free end of the fastening bolt 8, and when the fastening bolt 8 is screwed and fastened in the connecting blind hole 5, the elastic rubber layer 9 and the hole bottom of the connecting blind hole 5 are elastically abutted and matched.

During actual manufacturing, a limiting structure for preventing the reverse gear washer 3 from rotating circumferentially on the reverse gear shaft body 1 is arranged between the reverse gear washer 3 and the reverse gear shaft body 1; the specific implementation mode of the limiting structure is as follows: the reverse gear shaft body 1 is characterized in that first convex nails 10 protruding axially outwards are circumferentially distributed on the end face of the right end of the reverse gear shaft body 1 at intervals, second convex nails 11 protruding axially outwards are circumferentially distributed on the end face of the outer end of the reverse gear gasket 3 at intervals, first inner grooves 12 are circumferentially distributed on the inner end face of the annular ring 6 at intervals, the first inner grooves 12 are circumferentially connected to form an inner ring, the first inner grooves 12 are axially opposite to the first convex nails 10 one by one, second inner grooves 13 are circumferentially distributed on the inner end face of the annular ring 6 at intervals, the second inner grooves 13 are circumferentially connected to form an outer ring, the second inner grooves 13 are axially opposite to the second convex nails 11 one by one, and when the annular ring 6 is axially abutted against the reverse gear shaft body 1 and the reverse gear gasket 3, the first convex nails 10 are inserted into the corresponding first inner grooves 12, and the second convex nails 11 are inserted into the corresponding second inner grooves 13 to enable the reverse gear gasket 3 to be circumferentially limited on the reverse gear shaft body 1; in order to facilitate the axial assembly of the first convex nail 10 and the corresponding first inner groove 12, the second convex nail 11 and the corresponding second inner groove 13, the end surfaces of the outer ends of the first convex nail 10 and the second convex nail 11 are arc end surfaces.

In actual manufacture, the head 7 of the fastening bolt 8 is in a semicircular structure, and a rectangular protrusion 14 is arranged at the middle position of the vertical side wall in the middle of the head 7 of the fastening bolt 8, so that the function of preventing the fastening bolt 8 from being screwed open by a general tool is realized.

Those not described in detail in this specification are within the skill of the art. The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.

Claims (7)

1. The utility model provides a reverse gear jackshaft, is including being cylindric reverse gear axis body (1), the left end spiro union of reverse gear axis body (1) have spindle nose nut (2), the right-hand member of reverse gear axis body (1) be provided with reverse gear packing ring (3), its characterized in that, reverse gear packing ring (3) can dismantle the axial assembly in the right-hand member of reverse gear axis body (1), be provided with between this reverse gear packing ring (3) and the reverse gear axis body (1) and prevent reverse gear packing ring (3) circumferential direction's on reverse gear axis body (1) limit structure.

2. The reverse countershaft according to claim 1, wherein the reverse shaft body (1) has an annular flange (4) at the right end thereof, the annular flange (4) and the right end of the reverse shaft body (1) form an axial fitting position, the reverse washer (3) is axially fitted in the axial fitting position, the reverse shaft body (1) has a blind coupling hole (5) at a middle position at the right end thereof, and when the reverse washer (3) is fitted in the axial fitting position, a fastening member is threadedly coupled in the blind coupling hole (5) and axially abuts against the reverse washer (3).

3. The reverse countershaft according to claim 2, wherein the fastener comprises an annular ring (6) and a fastening bolt (8) with a head (7), the fastening bolt (8) being threadedly fastened through the annular ring (6) in the blind connecting hole (5), the annular ring (6) having an outer diameter larger than that of the reverse shaft body (1), the annular ring (6) and the reverse washer (3) being axially in abutting engagement.

4. The reverse gear intermediate shaft according to claim 3, wherein the free end of the fastening bolt (8) is embedded with an elastic rubber layer (9), and when the fastening bolt (8) is screwed and fastened in the connecting blind hole (5), the elastic rubber layer (9) is elastically abutted and matched with the hole bottom of the connecting blind hole (5).

5. The reverse gear intermediate shaft according to claim 4, wherein the limiting structure comprises first reverse gear shaft bodies (1) and second reverse gear shaft bodies (11), first protruding nails (10) protruding axially outwards are circumferentially distributed at intervals on the end face of the right end of each reverse gear shaft body, second protruding nails (11) protruding axially outwards are circumferentially distributed at intervals on the end face of the outer end of each reverse gear gasket (3), first inner grooves (12) are circumferentially distributed at intervals on the inner end face of each annular ring (6), the first inner grooves (12) are circumferentially connected to form inner ring rings, the first inner grooves (12) are axially opposite to the first protruding nails (10) one by one, second inner grooves (13) are circumferentially distributed at intervals on the inner end face of each annular ring (6), the second inner grooves (13) are circumferentially connected to form outer ring rings, the second inner grooves (13) are axially opposite to the second protruding nails (11) one by one, and when the annular rings (6) and the reverse gear shaft bodies (1) are connected, When the reverse gear washer (3) is axially abutted, the first convex nail (10) is inserted into the corresponding first inner groove (12), and the second convex nail (11) is inserted into the corresponding second inner groove (13) so that the reverse gear washer (3) is circumferentially limited on the reverse gear shaft body (1).

6. The reverse gear intermediate shaft according to claim 5, wherein the outer end faces of the first protruding nails (10) and the second protruding nails (11) are arc end faces.

7. The reverse gear intermediate shaft according to claim 6, wherein the head (7) of the fastening bolt (8) is of a semicircular structure, and the middle vertical side wall of the middle of the head (7) of the fastening bolt (8) is provided with a rectangular protrusion (14) at a middle position.

Images