CN217347360U

CN217347360U - Floating flexible coupling transaxle

Info

Publication number: CN217347360U
Application number: CN202221046475.0U
Authority: CN
Inventors: 叶俊; 王杰; 左改兵; 徐茂博; 郭琰平
Original assignee: Anqing Heli Axle Co ltd
Current assignee: Anqing Heli Axle Co ltd
Priority date: 2022-04-26
Filing date: 2022-04-26
Publication date: 2022-09-02
Anticipated expiration: 2032-04-26

Abstract

The utility model provides a floating flexible coupling transaxle, including axle housing assembly and left brake assembly and the right brake assembly of setting at axle housing assembly axial both ends, the axle housing assembly includes axle housing body, left connecting plate and right connecting plate, left side connecting plate adopts floating flexible coupling with the axle housing body, the fixed cover of right connecting plate is established on the external connection axle of axle housing body, and left and right brake assembly is respectively through stopper bolt and left and right connecting plate fixed connection. The utility model discloses an adopt floating flexible coupling and through improving the overall arrangement sealed with locking structure in transaxle one side, effectively solve the compact problem of wheel limit spatial layout, avoid causing stress concentration when effectively saving spatial layout, when meeting the highway section of jolting in fork truck operation process, make the stress between transaxle and the frame obtain releasing and buffering, improve and drive experience.

Description

Floating flexible coupling transaxle

Technical Field

The utility model relates to a fork truck transaxle technical field, concretely relates to floating flexible coupling transaxle.

Background

The transaxle is at the end of the powertrain and its basic functions are: the engine torque transmitted by the universal transmission device is transmitted to a driving wheel through a main speed reducing tire, a differential mechanism, a half shaft and the like, so that the speed reduction and the torque increase are realized; the transmission direction of the torque is changed through a bevel gear pair of the main speed reducer; the differential action of the wheels at two sides is realized through a differential mechanism, and the wheels at the inner side and the outer side are ensured to turn at different rotating speeds; the bearing and force transmission effects are realized through the axle shell and the wheels.

The fixed transaxle structure of traditional connecting plate has the wheel limit structure complicacy compactness, and the local stress condition is complicated, easily causes stress concentration, and when meeting the highway section of jolting among the fork truck operation process, the stress that makes between transaxle and the frame can't obtain releasing and buffering, and the atress is great, drives for fork truck driver and brings uncomfortable experience.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a floating flexible coupling transaxle to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a floating flexible coupling transaxle, includes the axle housing assembly and sets up left brake assembly and the right brake assembly at axle housing assembly axial both ends, the axle housing assembly includes axle housing body, left connecting plate and right connecting plate, left side connecting plate and right connecting plate adopt floating flexible coupling with the axle housing body, and left brake assembly and right brake assembly pass through stopper bolt and left connecting plate, right connecting plate fixed connection respectively.

Furthermore, floating soft connection is realized through the external connection axle that rotates with the axle housing body to group connecting plate and right connecting plate.

Furthermore, the left connecting plate and the right connecting plate comprise sector plates and shaft sleeves fixed with the outer connecting shaft, brake bolt holes are formed in the sector plates, and oil seal guard rings are arranged at the joints of the shaft sleeves and the outer connecting shaft.

Furthermore, the left brake assembly and the right brake assembly comprise brake discs and brake drums, accommodating cavities for mounting the wheel hubs and the components of the wheel hubs are formed, the brake discs and the wheel hubs are connected in a penetrating mode through half shafts, the wheel hubs and the brake drums are connected in a matched mode through wheel hub nuts and wheel hub bolts, one axial end of each half shaft is connected with the wheel hubs through half shaft bolts, and the other axial end of each half shaft is connected with the outer connecting shaft through threads.

Furthermore, a first tapered roller bearing and a first framework oil seal which are sleeved on the half shaft are further arranged between the wheel hub and the brake disc, and the wheel hub is connected with the brake drum sequentially through a second tapered roller bearing, a locking nut, a second framework oil seal and a bolt-nut assembly.

Further, axle housing body lower part is provided with the breather plug assembly through the cylindric lock is fixed.

According to the above technical scheme, the utility model discloses an adopt floating flexible coupling and through improving the overall arrangement sealed with locking structure in transaxle one side, effectively solve the compact problem of wheel limit spatial layout, avoid causing stress concentration when effectively saving spatial layout, when meeting the highway section of jolting in fork truck operation process, stress between transaxle and the frame can obtain release and buffering, improves and drives experience.

Drawings

Fig. 1 is a schematic view of the overall structure of the drive axle of the present invention;

FIG. 2 is a schematic structural view of the right connecting plate of the present invention;

in the figure: 1. an axle housing assembly; 11. an axle housing body; 12. a left connecting plate; 13. a right connecting plate; 131. a sector plate; 132. a shaft sleeve; 2. a left brake assembly; 3. a right brake assembly; 31. a brake disc; 32. a brake drum; 33. a half shaft; 34. a first tapered roller bearing; 35. a framework oil seal I; 36 tapered roller bearing II; 37. locking the nut; 38. a framework oil seal II; 39. a nut retainer ring; 4. a vent plug assembly; 5. an outer connecting shaft; 6. an oil seal retainer; 7. a hub.

Detailed Description

A preferred embodiment of the invention is described in detail below with reference to the accompanying drawings, and in the following description, numerous specific details are set forth in order to provide a thorough understanding of the invention. The present invention can be embodied in many other forms than those specifically described herein, and it will be apparent to those skilled in the art that similar modifications can be made without departing from the spirit and scope of the invention.

The floating type flexible connection drive axle shown in figure 1 comprises an axle housing assembly 1 and a left brake assembly 2 and a right brake assembly 3 which are symmetrically arranged at the two axial ends of the axle housing assembly, wherein the axle housing assembly comprises an axle housing body 11, a left connecting plate 12 and a right connecting plate 13 which are symmetrically arranged at the two sides of the axle housing body, the left connecting plate and the right connecting plate adopt floating type flexible connection with the axle housing body, the left brake assembly and the right brake assembly are respectively fixedly connected with the left connecting plate and the right connecting plate through brake bolts, and a vent plug assembly 4 is fixedly arranged on the lower portion of the axle housing body through cylindrical pins.

This preferred embodiment left connecting plate 12 and right connecting plate 13 realize floating flexible coupling through the external connection axle 5 of being connected with axle housing body 11 rotation, during the use, left connecting plate and right connecting plate rigid coupling are on the automobile body, when meeting the highway section of jolting in fork truck operation process, left connecting plate and right connecting plate can realize free rotation between external connection axle and the axle housing, make the stress between transaxle and the frame can obtain release and buffering to improve and drive experience. Specifically, as shown in fig. 2, taking the right connecting plate as an example, the connecting plate according to the preferred embodiment includes a sector plate 131 and a shaft sleeve 132 fixed to the external connecting shaft, the sector plate is provided with a brake bolt hole, and a joint of the shaft sleeve and the external connecting shaft is provided with an oil seal retainer 6.

As shown in fig. 1, taking a right brake assembly 3 as an example, the brake assembly of the preferred embodiment includes a brake disc 31 and a brake drum 32, and forms an accommodating cavity for mounting a hub 7 and components thereof, the brake disc and the hub are connected through a half shaft 33, the hub and the brake drum are connected through a hub nut and a hub bolt in a matching manner, one axial end of the half shaft is connected with the hub through a half shaft bolt, and the other axial end of the half shaft is connected with an external connecting shaft through a thread; a tapered roller bearing I34 and a skeleton oil seal I35 which are sleeved on the half shaft are further arranged between the hub and the brake disc, and the hub is connected with the brake drum sequentially through a tapered roller bearing II 36, a locking nut 37, a skeleton oil seal II 38 and a bolt-nut assembly; through improving the overall arrangement of sealed and locking structure, effectively solve the compact problem of wheel limit spatial layout, avoid causing stress concentration when effectively saving spatial layout.

In specific use, elastic pads or gaskets can be arranged at the connecting parts of all mechanical structures according to requirements so as to reduce abrasion; meanwhile, the locking nut 37 in the preferred embodiment adopts a mechanical anti-loose structure, a bayonet is arranged at the position of the nut retainer ring 39, a clamping groove capable of being matched with the bayonet is formed in the end part of the shaft head of the external connecting shaft, and the locking nut is further fixed through another nut, so that an effective mechanical anti-loose effect is achieved.

The above-mentioned embodiments are only to describe the preferred embodiments of the present invention, but not to limit the scope of the present invention, and various modifications and improvements made by those skilled in the art without departing from the design spirit of the present invention should fall into the protection scope defined by the claims of the present invention.

Claims

1. The utility model provides a floating flexible coupling transaxle, includes axle housing assembly and sets up left brake assembly and the right brake assembly at axle housing assembly axial both ends, the axle housing assembly includes axle housing body, left connecting plate and right connecting plate, its characterized in that, left side connecting plate and right connecting plate adopt floating flexible coupling with the axle housing body, and left brake assembly and right brake assembly are respectively through stopper bolt and left connecting plate, right connecting plate fixed connection, and left connecting plate and right connecting plate realize floating flexible coupling through the outer joint axle of being connected with axle housing body rotation.

2. The floating type flexible connection drive axle according to claim 1, characterized in that the left and right connecting plates comprise sector plates and bushings fixed with the external connecting shaft, the sector plates are provided with brake bolt holes, and the joints of the bushings and the external connecting shaft are provided with oil seal retainers.

3. The floating flexible connection drive axle according to claim 1, characterized in that the left and right brake assemblies comprise brake discs and brake drums, and are formed with accommodating cavities for mounting wheel hubs and their components, the brake discs and wheel hubs are penetrated through half shafts, the wheel hubs and brake drums are connected by means of wheel hub nuts and wheel hub bolts in a matching manner, one axial ends of the half shafts are connected with the wheel hubs by means of half shaft bolts, and the other axial ends of the half shafts are connected with external connecting shafts by means of threads.

4. The floating type flexible connection drive axle according to claim 3, characterized in that a first tapered roller bearing and a first skeleton oil seal which are sleeved on the half axle are further arranged between the hub and the brake disc, and the hub is connected with the brake drum sequentially through a second tapered roller bearing, a lock nut, a second skeleton oil seal and a bolt-nut assembly.

5. The floating flexible coupling transaxle of claim 1 wherein the axle housing body lower portion is fixedly secured with a vent plug assembly by a cylindrical pin.