CN220974158U - Railway walking frame device of mini excavator - Google Patents

Abstract

The utility model discloses a railway walking frame device of a mini excavator, which comprises a main body bracket, a pair of walking wheel sets, a fixed beam of the excavator and a transmission mechanism, wherein the main body bracket comprises a bearing seat arranged in the center and hub mounting seats arranged at the front end and the rear end of the bearing seat, a containing groove is arranged in the center of the bearing seat, the fixed beam of the excavator is fixedly arranged at the front part or the rear part of the containing groove, the pair of walking wheel sets comprise wheel shafts arranged in the hub mounting seats and a pair of track walking wheels arranged on the wheel shafts, the transmission mechanism comprises a hydraulic motor, a speed reducer and a transmission assembly, and an output shaft of the hydraulic motor is connected with the speed reducer in a transmission way through the transmission assembly, and compared with the prior art, the railway walking frame device has the advantages that: the excavator can be connected quickly, and the excavator can walk by adopting the power of the excavator, so that the walking is stable.

Description

Railway walking frame device of mini excavator

Technical Field

The utility model relates to the field of rail running devices, in particular to a railway running frame device of a mini excavator.

Background

The mini-excavator for railway track maintenance is used for performing various tasks to ensure the normal operation and safety of a railway in a railway track maintenance work. Railway track maintenance is a critical part of the railway transportation field and comprises the work of keeping the track flat, replacing ageing parts, cleaning weeds and the like. The excavator is directly used on the track to cause track damage due to the fact that the crawler belt is adopted for walking, and the miniature excavator is not suitable for moving on the track directly due to the fact that the miniature excavator is in size, so that the excavator can be only modified in a wheeled walking mode, the patent of the same applicant in the prior application can be referred to, and the patent number is as follows: CN218026943U patent name: the railway construction walking auxiliary driving wheel for the miniature excavator can enable the miniature excavator to realize load walking by additionally installing the auxiliary wheel.

The method still needs to be modified to a certain extent, the direct use cannot be realized, and if a special track walking frame is adopted for walking, the track carrying walking of the excavator can be realized by only hoisting and installing the excavator in the process, the use convenience is greatly improved, and the inventor proposes a walking frame device applied to the track walking of the mini excavator to solve the problems.

Disclosure of utility model

The technical problem to be solved by the utility model is to overcome the technical defects and provide the railway running frame device of the mini excavator.

The utility model provides a railway running frame device of mini excavator, including the main part support, a pair of walking wheelset, dig quick-witted fixed beam and drive mechanism, the main part support includes the bearing seat that the central authorities set up and sets up the wheel hub mount pad at bearing seat front and back both ends, the central authorities of bearing seat are provided with the storage tank, dig quick-witted fixed beam fixed mounting in the front portion or the rear portion of storage tank, a pair of walking wheelset all includes the shaft of installing in the wheel hub mount pad and a pair of track walking wheel that sets up at the epaxial, drive mechanism includes hydraulic motor, reduction gear and drive assembly, hydraulic motor's output shaft reduction gear and pass through drive assembly and be connected with the shaft transmission.

Further, the main body bracket includes a pair of longitudinal beams provided at left and right sides, a bottom plate and a connection beam which are laterally connected to the longitudinal beams at a bottom surface, and a pair of lateral beams provided at front and rear portions of the longitudinal beams, respectively.

Further, the hub mounting base is provided with four, which are respectively arranged at the front end and the rear end of the two longitudinal beams and extend in a direction away from the transverse beams.

Further, the hub mounting seat comprises a mounting seat longitudinal beam fixed with the longitudinal beam and arranged above the longitudinal beam, a vertical seat plate fixedly connected with the transverse beam and the mounting seat longitudinal beam, and a shaft seat arranged on the vertical seat plate.

Further, the two ends of the fixed beam of the excavator are fixedly connected to the longitudinal beams on the two sides, and vacancies for the bulldozer blade to enter are arranged above and below the fixed beam.

Further, the transmission assembly is a chain wheel transmission assembly or a belt wheel transmission assembly, and comprises a pair of transmission wheels respectively arranged at the output end of the speed reducer and the wheel shaft and a transmission belt in transmission connection with the two transmission wheels.

Further, the speed reducer comprises a fixing frame, a transmission frame, a planetary gear set and an output cylinder, wherein the fixing frame is used for being fixed with the main body support, the transmission frame is arranged on the fixing frame, the planetary gear set is arranged on the transmission frame, and the output cylinder is arranged on the planetary gear set.

Further, the planetary gear set comprises a sun gear fixedly connected with the output shaft of the hydraulic motor, a plurality of planetary gears which are arranged on the transmission frame and meshed with the sun gear, and a gear ring meshed with the planetary gears, and the gear ring is coaxially and fixedly connected with the output cylinder.

By adopting the structure, compared with the prior art, the utility model has the following advantages: the special rail chassis is designed by the walking frame, so that the special railway walking is considered, and better stability and safety are provided; the excavator can run on the rail more stably by means of hydraulic power of the excavator only through simple installation, and the risks of overturning and accidents are reduced, so that the excavator is very important for railway maintenance, repair and other engineering tasks needing to be performed on the rail; the fixed beam of the excavator is matched with the excavator shovel of the excavator, so that the excavator can be effectively stabilized in operation, and shaking or unstable conditions are prevented.

Drawings

Fig. 1 is a perspective view of an embodiment 1 of a railroad car frame device for a mini-excavator according to the present utility model.

Fig. 2 is a right side cross-sectional view schematically showing an example 1 of a railroad car frame device for a mini-excavator according to the present utility model.

Fig. 3 is a top perspective view of example 1 of a railroad car frame unit for a mini-excavator according to the present utility model.

Fig. 4 is a schematic diagram of a transmission mechanism of an embodiment 1 of a railway carriage assembly of a mini-excavator according to the present utility model.

As shown in the figure: 1. the main body comprises a main body support, 2, a walking wheel set, 3, a fixed beam of a digging machine, 4, a transmission mechanism, 5, a bearing seat, 6, a hub mounting seat, 7, a containing groove, 8, a wheel shaft, 9, a track walking wheel, 10, a hydraulic motor, 11, a speed reducer, 12, a transmission component, 13, a longitudinal beam, 14, a bottom plate, 15, a connecting beam, 16, a transverse beam, 17, a mounting seat longitudinal beam, 18, a vertical seat plate, 19, a shaft seat, 20, a transmission wheel, 21, a transmission belt, 22, a fixing frame, 23, a transmission frame, 24, an output cylinder, 25, a planetary wheel set, 26, a sun gear, 27, a planetary gear, 28 and a gear ring.

Detailed Description

The following are only preferred embodiments of the present utility model, and are not intended to limit the scope of the present utility model, which is further described with reference to the accompanying drawings and examples.

Example 1:

Referring to fig. 1 to 4, the excavator comprises a main body bracket 1, a pair of walking wheel sets 2, an excavator fixing beam 3 and a transmission mechanism 4.

The walking frame can be matched with the mini excavator to ensure that the mini excavator can walk along the track. The main body support 1 can bear the weight of the excavator, the pair of walking wheel sets 2 can move in cooperation with the track, the excavator fixing beam 3 can limit the excavator and increase the working stability, and the transmission mechanism 4 can utilize the power of the excavator to drive the device.

The walking frame comprises a bearing seat 5 arranged in the center and hub mounting seats 6 arranged at the front end and the rear end of the bearing seat 5. Since the mini-excavator is engaged, a receiving groove 7 is provided in the center of the carrier 5. Specifically, the main body bracket 1 includes a pair of longitudinal beams 13 provided on the left and right sides, a bottom plate 14 and a connecting beam 15 that connect the longitudinal beams 13 laterally at the bottom surface, and a pair of lateral beams 16 provided at the front and rear of the longitudinal beams 13, respectively. The longitudinal beams 13 and the transverse beams 16 are spliced and matched to form a frame structure to form the periphery of the accommodating groove 7; the bottom plate 14 and the connecting beam 15 at the bottom are both of double-layer tube structures to form the bottom of the accommodating groove 7. This receiving groove 7 can be placed in a digger for positioning.

The fixed beam 3 of the excavator is fixedly arranged at the front part or the rear part of the accommodating groove 7, two ends of the fixed beam 3 of the excavator are fixedly connected to the longitudinal beams 13 at two sides, and vacancies for the bulldozer blade of the excavator to enter are arranged above and below the fixed beam. With reference to fig. 2, it can be seen that the excavator can be plugged into the fixed beam 3 of the excavator through the shovel opening of the bulldozer after entering the accommodating groove 7, and an additional fulcrum can be provided when the mechanical arm is adopted for operation, the gravity center is adjusted through the bulldozer, and the stability is improved.

In this embodiment, in order to facilitate the operation of the mechanical arm of the excavator in the front, four hub mounts 6 are provided, which are provided at the front and rear ends of the two longitudinal beams 13 and extend in a direction away from the transverse beam 16, respectively. The hub mounting seat 6 has little influence on the movement of the mechanical arm, and construction is easier. As can be seen in connection with the figures, the hub mounting 6 comprises a mounting rail 17 fixed to the longitudinal rail 13 and arranged above the longitudinal rail 13, a vertical seat plate 18 fixedly connected to the transverse rail 16 and to the mounting rail 17, and a shaft seat 19 arranged on the vertical seat plate 18. The vertical seat plates 18, the longitudinal beams and the longitudinal beams 13 form a double-layer reinforcing structure, and the stability is high.

The pair of running wheel sets 2 each comprise an axle 8 mounted in a hub mount 6 and a pair of track running wheels 9 provided on the axle 8. The wheel axle 8 is arranged in the axle seat 19 and is driven to rotate by the transmission mechanism 4.

The transmission mechanism 4 adopts hydraulic power and comprises a hydraulic motor 10, a speed reducer 11 and a transmission assembly 12, wherein an output shaft of the hydraulic motor 10 is connected with the speed reducer 11 and is in transmission connection with the wheel axle 8 through the transmission assembly 12. In this embodiment, the transmission assembly 12 is a pulley transmission assembly 12, which includes a pair of transmission wheels 20 mounted on the output end of the reduction gear 11 and the wheel axle 8, respectively, and a transmission belt 21 drivingly connecting the two transmission wheels 20. The speed reducer 11 adopts a planetary gear speed reducing mode and comprises a fixed frame 22 for being fixed with the main body support 1, a transmission frame 23 arranged on the fixed frame 22, a planetary gear set 25 arranged on the transmission frame 23 and an output cylinder 24 arranged on the planetary gear set 25.

As can be seen in connection with the figures, the set of planet gears 25 comprises a sun gear 26, planet gears 27 and a ring gear 28 (the carrier 23 is a planet carrier). The sun gear 26 is fixedly connected with the output shaft of the hydraulic motor 10. And a plurality of planetary gears 27 are all axially fixedly arranged and meshed with the sun gear 26. And the gear ring 28 meshed with the plurality of planetary gears 27 can rotate, and the gear ring 28 is fixedly connected with the output cylinder 24 coaxially, so that power output is realized. The planetary gear speed reducing mechanism can be used for realizing the speed reduction of the hydraulic motor 10, so that the speed requirement of track walking is met. The planetary gear speed reducing mechanism is compact in structure and high in transmission efficiency, and can effectively convert high-speed rotation of the hydraulic motor 10 into proper speed of track walking.

The design of the special track walking frame can reduce the damage and abrasion to the railway track, the design of the wheel track contact point can reduce friction, the abrasion to the rail is reduced, and the service life of the railway is prolonged.

The utility model and its embodiments have been described above with no limitation, and the actual construction is not limited to the embodiments of the utility model as shown in the drawings. In summary, if one of ordinary skill in the art is informed by this disclosure, a structural manner and an embodiment similar to the technical solution should not be creatively devised without departing from the gist of the present utility model.

Claims (8)

1. A railway walking frame device of a mini excavator is characterized in that: including main part support (1), a pair of walking wheelset (2), dig quick-witted fixed beam (3) and drive mechanism (4), main part support (1) are including the bearing seat (5) of central authorities setting and set up hub mount pad (6) at bearing seat (5) front and back both ends, the central authorities of bearing seat (5) are provided with storage tank (7), dig quick-witted fixed beam (3) fixed mounting in the front portion or the rear portion of storage tank (7), a pair of walking wheelset (2) all including install shaft (8) and a pair of track walking wheel (9) of setting on shaft (8) in wheel hub mount pad (6), drive mechanism (4) are including hydraulic motor (10), reduction gear (11) and drive assembly (12), the output shaft of hydraulic motor (10) is reduction gear (11) and is connected with the transmission of shaft (8) through drive assembly (12).

2. The railroad walk stand apparatus of a mini-excavator according to claim 1, wherein: the main body bracket (1) comprises a pair of longitudinal beams (13) arranged on the left and right sides, a bottom plate (14) and a connecting beam (15) which are transversely connected with the longitudinal beams (13) on the bottom surface, and a pair of transverse beams (16) respectively arranged at the front part and the rear part of the longitudinal beams (13).

3. The railroad walk stand apparatus of a mini-excavator according to claim 2, wherein: the hub mounting seats (6) are provided with four, are respectively arranged at the front end and the rear end of the two longitudinal beams (13) and extend in a direction away from the transverse beams (16).

4. A railroad walk stand apparatus of a mini-excavator according to claim 3, wherein: the hub mounting seat (6) comprises a mounting seat longitudinal beam (17) fixed with the longitudinal beam (13) and arranged above the longitudinal beam (13), a vertical seat plate (18) fixedly connected with the transverse beam (16) and the mounting seat longitudinal beam (17), and a shaft seat (19) arranged on the vertical seat plate (18).

5. The railroad walk stand apparatus of a mini-excavator according to claim 2, wherein: two ends of the fixed beam (3) of the excavator are fixedly connected to the longitudinal beams (13) on two sides, and vacancies for the shovel of the excavator to enter are arranged above and below the fixed beam.

6. The railroad walk stand apparatus of a mini-excavator according to claim 1, wherein: the transmission assembly (12) is a chain wheel transmission assembly (12) or a belt wheel transmission assembly (12), and comprises a pair of transmission wheels (20) respectively arranged at the output end of the speed reducer (11) and the wheel shaft (8) and a transmission belt (21) in transmission connection with the two transmission wheels (20).

7. The railroad walk stand apparatus of a mini-excavator according to claim 6, wherein: the speed reducer (11) comprises a fixing frame (22) used for being fixed with the main body support (1), a transmission frame (23) arranged on the fixing frame (22), a planetary gear set (25) arranged on the transmission frame (23) and an output cylinder (24) arranged on the planetary gear set (25).

8. The railroad walk stand apparatus of a mini-excavator according to claim 7, wherein: the planetary gear set (25) comprises a sun gear (26) fixedly connected with an output shaft of the hydraulic motor (10), a plurality of planetary gears (27) arranged on the transmission frame (23) and meshed with the sun gear (26), and a gear ring (28) meshed with the plurality of planetary gears (27), wherein the gear ring (28) is coaxially and fixedly connected with the output cylinder (24).