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CN-224213419-U - Support structure for transmission of lower frame body of excavator

CN224213419UCN 224213419 UCN224213419 UCN 224213419UCN-224213419-U

Abstract

The utility model provides a support structure for transmission of a lower frame body of an excavator, which relates to the field of excavators and comprises two side beam frames, wherein a middle frame is arranged between the two side beam frames, an installation seat is arranged at the middle position of the middle frame, a turntable assembly is arranged on the installation seat, and the turntable assembly consists of an internal gear ring and an external coil. The positioning column is in ingenious match with the positioning groove and the clamping head and clamping groove, a traditional multi-bolt positioning mode is abandoned, the positioning column is only required to be aligned to the positioning groove to be inserted in the mounting process, the clamping head is automatically clamped into the clamping groove by means of spring force, the preliminary positioning and fixing of the turntable assembly and the mounting seat can be completed, the mounting step is effectively reduced, a large amount of mounting and positioning time is saved, the arc-shaped bealock of the top support seat is matched with the pull ring, the clamping head can be easily withdrawn from the clamping groove by taking a prying bar as a tool and using a simple lever principle, and the positioning column and the positioning groove are separated.

Inventors

  • ZHAO XIAOQIANG
  • ZHANG KEPIN
  • ZHANG CHUNHUI

Assignees

  • 济宁市金常青机械有限责任公司

Dates

Publication Date
20260508
Application Date
20250519

Claims (6)

  1. 1. A support structure for an excavator lower frame body drive, comprising: The novel side beam comprises two side beam frames (1), wherein a middle-mounted frame (2) is arranged between the two side beam frames (1), an installation seat (3) is arranged at the middle position of the middle-mounted frame (2), a turntable assembly is arranged on the installation seat (3), the turntable assembly consists of an internal gear ring (4) and an external coil (41), and a plurality of bolt holes are formed in the internal gear ring (4) and the external coil (41); The auxiliary installation mechanism comprises two positioning columns (5), wherein the two positioning columns (5) are fixedly connected with the side wall below the built-in gear ring (4) respectively, two positioning grooves (51) are formed in the installation seat (3), two embedded grooves (52) are formed in the outer sides of the positioning grooves (51) in an aligned mode, clamping grooves are formed in the outer walls of the two sides of the positioning columns (5), and locking assemblies are arranged in the embedded grooves (52).
  2. 2. The support structure for the transmission of the excavator lower frame body according to claim 1, wherein the two positioning columns (5) are symmetrically arranged, the two positioning grooves (51) are symmetrically arranged, and the two positioning columns (5) are respectively and slidably connected with the two positioning grooves (51).
  3. 3. The supporting structure for the transmission of the excavator lower frame body according to claim 1, wherein the locking assembly comprises a sliding rod (53), the sliding rod (53) is arranged in the embedded groove (52), one end of the sliding rod (53) is fixedly connected with a clamping head (54), a top plate is arranged on the sliding rod (53), the top plate is arranged in the embedded groove (52), a spring (55) is sleeved on the sliding rod (53), one end of the spring (55) is connected with the top plate, and the other end of the spring (55) is connected with the inner wall of one end of the embedded groove (52).
  4. 4. A support structure for a lower frame body transmission of an excavator according to claim 3, wherein, through openings are arranged at both ends of the embedded groove (52), a receiving opening is arranged between one end of the through opening and the groove wall of the positioning groove (51), both ends of the sliding rod (53) are slidably connected with the two through openings, and the clamping head (54) is arranged at the receiving opening.
  5. 5. A support structure for the transmission of the lower frame body of an excavator according to claim 3, characterized in that one end of the sliding bar (53) is fixedly connected with a pull ring (6).
  6. 6. The supporting structure for the transmission of the excavator lower frame body according to claim 1, wherein a top support seat (7) is arranged at the lower position of the through hole at the other end, and an arc-shaped bealock is arranged at the middle position of the top support seat (7).

Description

Support structure for transmission of lower frame body of excavator Technical Field The utility model relates to the field of excavators, in particular to a supporting structure for transmission of an excavator lower frame body. Background In the aspect of modern engineering construction, the excavator is used as important mechanical equipment, and the performance and reliability of the excavator have key influences on engineering progress and quality. The support structure driven by the lower frame body is used as one of core components of the excavator, and plays an important role in transmitting power, supporting the upper structure and ensuring the stable operation of equipment. At present, when a traditional excavator lower frame body transmission supporting structure is used for installing and replacing a turntable assembly, a mode of installing four positioning bolts in a cross position in advance is adopted, the positions and the fastening degrees of the bolts need to be adjusted repeatedly in the actual installation process, the operation steps are complex, a large amount of time is consumed, the technical proficiency requirement on installation personnel is high, the overall assembly efficiency is low, and the labor cost and the time cost are increased. Therefore, there is a need to provide a new support structure for the lower frame body transmission of an excavator to solve the above-mentioned technical problems. Disclosure of utility model In order to solve the technical problems, the utility model provides a supporting structure for the transmission of a lower frame body of an excavator. The utility model provides a support structure for the transmission of a lower frame body of an excavator, which comprises two side beam frames, wherein a middle frame is arranged between the two side beam frames, an installation seat is arranged at the middle position of the middle frame, a turntable assembly is arranged on the installation seat, the turntable assembly is composed of an internal gear ring and an external coil, the internal gear ring and the external coil are respectively provided with a plurality of bolt holes, an auxiliary installation mechanism comprises two positioning columns, the two positioning columns are respectively and fixedly connected with the lower side wall of the internal gear ring, two positioning grooves are arranged on the installation seat, two embedded grooves are aligned on the outer sides of the two positioning grooves, clamping grooves are arranged on the outer walls of the two sides of the two positioning columns, and locking assemblies are arranged in the two embedded grooves. Preferably, the two positioning columns are symmetrically arranged, the two positioning grooves are symmetrically arranged, and the two positioning columns are respectively and slidably connected with the two positioning grooves. Preferably, the locking assembly comprises a sliding rod, the sliding rod is arranged in the embedded groove, one end of the sliding rod is fixedly connected with a clamping head, a top plate is arranged on the sliding rod, the top plate is arranged in the embedded groove, a spring is sleeved on the sliding rod, one end of the spring is connected with the top plate, and the other end of the spring is connected with the inner wall of one end of the embedded groove. Preferably, the both ends of embedded groove all are equipped with the through-hole, one end be equipped with between the cell wall of through-hole and constant head tank and accomodate the mouth, the both ends and the two through-hole sliding connection of slide bar, the dop is located and is accomodate mouthful department. Preferably, one end of the sliding rod is fixedly connected with a pull ring. Preferably, a top support seat is arranged at the lower position of the through hole at the other end, and an arc-shaped bealock is arranged at the middle position of the top support seat. Compared with the related art, the supporting structure for the transmission of the excavator lower frame body has the following beneficial effects: 1. According to the utility model, through ingenious matching of the positioning column with the positioning groove and the clamping head with the clamping groove, a traditional multi-bolt positioning mode is abandoned, and when the positioning column is installed, only the positioning column is required to be aligned with the positioning groove to be inserted, the clamping head is automatically clamped into the clamping groove by means of spring force, so that the preliminary positioning and fixing of the turntable assembly and the mounting seat can be completed, the installation steps are effectively reduced, a large amount of installation and positioning time is saved, and four positioning bolts are not required to be pre-installed for positioning and preliminary test, the overall assembly efficiency is remarkably improved, and the labor cost is reduced; 2. According to the util