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CN-224229204-U - Gearbox housing

CN224229204UCN 224229204 UCN224229204 UCN 224229204UCN-224229204-U

Abstract

The utility model provides a gearbox housing, and belongs to the technical field of gearboxes. The gearbox housing solves the problem that a reverse gear shaft mounting device is not arranged in the gearbox housing in the prior art. The utility model comprises a lower box body and an upper cover body, wherein the lower box body is of a box body structure with an opening at one side, a mounting ring is formed at the upper end part of the lower box body, a plurality of mounting convex bodies are formed in the mounting ring, the lower end of the upper cover body is attached to the upper end surface of the mounting ring, fastening bolts are fixedly penetrated in the periphery of the upper cover body and the mounting convex bodies, a reverse gear window and a power takeoff gear window are respectively arranged at the left side and the right side of the inside of the lower box body, a reverse gear cover and a power takeoff gear cover are respectively fixedly arranged at the outer sides of the reverse gear window, a first reverse gear shaft fixing cylinder and a reverse gear shaft fixing body are respectively formed at the two sides of the inside of the reverse gear window, a second reverse gear fixing cylinder is formed at one side of the reverse gear shaft fixing cylinder, and a reverse gear shaft fixing hole is formed in the first reverse gear shaft fixing cylinder, the second reverse gear fixing cylinder and the reverse gear shaft fixing body. The utility model has the advantage of stable installation of the reverse gear shaft.

Inventors

  • JIN QIANCHENG

Assignees

  • 浙江瑞发机械有限公司

Dates

Publication Date
20260512
Application Date
20250721

Claims (5)

  1. 1. The gearbox housing comprises a lower housing body (1) and an upper cover body (2), and is characterized in that the lower housing body (1) is of a housing body structure with one side being opened, a mounting ring (11) is formed at the upper end part of the lower housing body (1), a plurality of mounting convex bodies (12) are formed in the mounting ring (11), the lower end of the upper cover body (2) is attached to the upper end face of the mounting ring (11), a fastening bolt (3) is fixedly arranged on the periphery of the upper cover body (2) and in the mounting convex bodies (12) in a penetrating manner, a reverse gear window (13) and a power take-off gear window (14) are respectively formed on the left side and the right side inside the lower housing body (1), a reverse gear cover (4) and a power take-off gear cover (5) are fixedly arranged on the outer sides of the reverse gear window (13), a first reverse gear shaft fixing cylinder (15) and a reverse gear shaft fixing body (16) are respectively formed on two sides inside the reverse gear window (13), a second reverse gear shaft fixing cylinder (17) and a reverse gear shaft hole (17) are respectively formed on the two sides of the reverse gear housing body (17), the novel speed regulation device is characterized in that a first bearing cover (6) is fixedly connected to the lower box body (1) outside the first shaft hole (19), a second bearing cover (7) is fixedly connected to the lower box body (1) outside the second shaft hole (10), and a speed regulation rod support (21) is formed in the upper cover body (2).
  2. 2. The transmission housing according to claim 1, wherein the lower housing (1) outside the reverse gear shaft fixing cylinder is integrally formed with a mounting seat (161).
  3. 3. A gearbox housing according to claim 1, characterised in that the edges of the reverse gear window (13) and the power take-off gear window (14) are formed with a number of first (131) and second (141) cams, respectively.
  4. 4. A gearbox housing according to claim 1, characterised in that the lower housing (1) is formed with a vent plug (8) on its surface.
  5. 5. The gearbox housing according to claim 1, wherein the lower housing (1) is formed with connection plates (9) on both sides.

Description

Gearbox housing Technical Field The utility model belongs to the technical field of gearboxes, and relates to a gearbox shell. Background The gearbox shell seals the internal parts of the gearbox in a relatively stable space, so that the invasion of dust, moisture and other impurities is prevented, and the parts are prevented from being corroded and damaged by the external environment. The Chinese patent with the patent publication number of CN206637006U discloses a gearbox shell, which comprises a clutch shell and a gearbox, wherein the clutch shell and the gearbox are made of spheroidal graphite cast iron, a first bearing hole, a second bearing hole, a third bearing hole and a fourth bearing hole are respectively arranged in the gearbox, the first bearing hole and the third bearing hole are identical in size, the central connecting line of the first bearing hole and the third bearing hole is on a straight line and is on a straight line with the central axis of the clutch shell, the central lines of the second bearing hole and the fourth bearing hole are coincident, four first bolt holes are uniformly arranged around the third bearing hole, and two second bolt holes are respectively arranged on the left side and the right side of the second bearing hole. In the gearbox housing provided by the patent, a structure for installing the reverse gear shaft is not arranged, and the gear shift phenomenon is easy to occur in actual use. Disclosure of utility model The object of the present utility model is to solve the above-mentioned problems occurring in the prior art and to provide a gearbox housing. The gearbox shell comprises a lower box body and an upper cover body, wherein the lower box body is of a box body structure with an opening at one side, a mounting ring is formed at the upper end part of the lower box body, a plurality of mounting convex bodies are formed in the mounting ring, the lower end of the upper cover body is attached to the upper end face of the mounting ring, fastening bolts penetrate and are fixedly arranged on the periphery of the upper cover body and the mounting convex bodies, a reverse gear window and a power takeoff gear window are respectively formed on the left side and the right side inside the lower box body, a reverse gear cover and a power takeoff gear cover are respectively and fixedly arranged on the outer sides of the reverse gear window, a first reverse gear shaft fixing cylinder and a reverse gear shaft fixing body are respectively formed on two sides inside the reverse gear window, a second reverse gear shaft fixing cylinder is formed on one side of the reverse gear shaft fixing cylinder, a second reverse gear shaft fixing cylinder and a reverse gear shaft fixing hole are formed in the reverse gear shaft fixing body, a first reverse gear shaft fixing cylinder and a second reverse gear shaft hole is formed in the reverse gear shaft fixing body, a second bearing is formed on the two sides of the lower box body, and a speed regulating shaft hole is formed on the outer side of the lower box body, and the first bearing is fixedly connected with the shaft hole is formed on the outer side of the lower box body. In the gearbox housing, the lower housing outside the reverse gear shaft fixing cylinder is integrally formed with the mounting seat. In the gearbox housing, a plurality of first bosses and second bosses are respectively formed at edges of the reverse gear window and the power take-off gear window. In the gearbox housing, a vent plug is formed on the surface of the lower housing. In the gearbox housing, connecting plates are formed on two sides of the lower housing. Compared with the prior art, the gearbox housing has the advantages that 1, the first reverse gear shaft fixing cylinder, the second reverse gear shaft fixing cylinder and the reverse gear shaft fixing body are arranged, a stable and accurate mounting and positioning structure is provided for the reverse gear shaft, displacement and shaking of the reverse gear shaft in the working process can be effectively limited, a reverse gear is ensured to always keep a good meshing state, and the risk of gear disengagement is reduced, 2, the reverse gear window and the outer side of the power takeoff gear window are respectively fixedly provided with the reverse gear cover and the power takeoff gear cover, a plurality of first bosses and a plurality of second bosses are respectively formed at the edges of the gear window, and the arrangement of the first bosses and the second bosses increases the connection strength and positioning accuracy between the reverse gear cover and the power takeoff gear cover and the lower housing, so that the gear cover is effectively prevented from loosening or shifting in the working process of the gearbox. Drawings FIG. 1 is a schematic view of the overall structure of the present utility model; FIG. 2 is a schematic diagram of an explosive structure of the present utility model; fig. 3 is