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CN-122009335-A - Cab front wall structure for engineering machinery

CN122009335ACN 122009335 ACN122009335 ACN 122009335ACN-122009335-A

Abstract

The invention relates to the technical field of engineering machinery and discloses a cab front wall structure for engineering machinery, which comprises a floor, a front wall inner plate, a front wall outer plate and a reinforcing beam, wherein the front wall inner plate is welded on one side of the floor facing a vehicle head, the reinforcing beam is arranged on one side of the floor facing the vehicle head, the front wall inner plate and the front wall outer plate are bonded by adopting structural adhesive, the front wall inner plate is welded with the front wall outer plate, the welding position is positioned at the bottom of the front wall outer plate, a buffering and damping component is arranged between the reinforcing beam and the front wall outer plate, the buffering and damping component comprises a fixed main seat arranged on the reinforcing beam, a fixed sub seat fixedly arranged on the front wall outer plate and a middle support seat arranged between the fixed sub seat and the fixed sub seat, two fixed sub seats are respectively arranged on the main surface and the side surface of the front wall outer plate, telescopic rods are hinged between the middle support seat and the fixed sub seats, two telescopic rods are correspondingly arranged, and a buffering component is arranged between the fixed main seat and the middle support seat.

Inventors

  • CHEN LI
  • HUANG GUIHUA
  • QIN MIN
  • Tan Yaosong
  • LIANG GUANGHUA
  • ZHOU XINXING

Assignees

  • 广西威翔机械有限公司

Dates

Publication Date
20260512
Application Date
20260224

Claims (9)

  1. 1. The cab front wall structure for the engineering machinery is characterized by comprising a floor (100), a front wall inner plate (101), a front wall outer plate (102) and a reinforcing beam (103), wherein the front wall inner plate (101) is welded on one side of the floor (100) facing a vehicle head, the reinforcing beam (103) is arranged on one side of the floor (100) facing the vehicle head, the front wall inner plate (101) and the front wall outer plate (102) are bonded by adopting structural adhesive, the front wall inner plate (101) is welded with the front wall outer plate (102), and the welding position is positioned at the bottom of the front wall outer plate (102); a buffering and damping component (200) is arranged between the stiffening beam (103) and the front wall outer plate (102).
  2. 2. The cab front wall structure for construction machinery according to claim 1, wherein the cushion damper assembly (200) is provided in plurality and is distributed correspondingly according to the actual shape of the cab.
  3. 3. The cab front wall structure for construction machinery according to claim 1, wherein the buffer damper assembly (200) comprises a fixed main seat (201) fixedly arranged on the stiffening beam (103), a fixed sub-seat (203) fixedly arranged on the front wall outer plate (102), and an intermediate support (202) positioned between the fixed main seat (201) and the fixed sub-seat (203), a telescopic rod (204) is hinged between the intermediate support (202) and the fixed sub-seat (203), and a buffer component is arranged between the fixed main seat (201) and the intermediate support (202).
  4. 4. A cab front wall structure for construction machinery according to claim 3, characterized in that the fixed sub-seat (203) is provided with two and is located on the main surface and the side surface of the front wall outer plate (102), respectively, the main surface of the front wall outer plate (102) refers to the surface of the front wall outer plate (102) facing the driver, and the side surface of the front wall outer plate (102) refers to the surface of the front wall outer plate (102) located on the driver side; Two telescopic rods (204) are correspondingly arranged.
  5. 5. The cab front wall structure for construction machinery according to claim 4, wherein the telescopic rod (204) comprises an outer sleeve (2041) and an inner slide rod (2042), the closed end of the outer sleeve (2041) is in ball joint with the fixed sub-seat (203), the opening end of the outer sleeve (2041) is provided with a built-in step I, the inner sleeve of the outer sleeve (2041) is provided with a slide plug (2043), one end of the inner slide rod (2042) is connected with the slide plug (2043), and the other end of the inner slide rod (2042) passes through the built-in step I and is then in joint with the middle support (202), and a travel spring (2044) positioned between the slide plug (2043) and the built-in step I is sleeved outside the inner slide rod (2042).
  6. 6. The cab front wall structure for construction machinery according to claim 4, wherein the buffer member comprises a main cylinder shell (205) and a sub cylinder shell (208), a closed end of the main cylinder shell (205) is connected with a fixed main seat (201), an open end of the sub cylinder shell (208) is provided with a built-in step II, the closed end of the sub cylinder shell (208) is connected with an intermediate support (202), an open end of the sub cylinder shell (208) passes through the built-in step II and is coaxially provided with a slip ring (2081), the slip ring (2081) and the main cylinder shell (205) form a sealed sliding guide fit, a collar (2082) coaxially extends from the tail end of the slip ring (2081), the collar (2082) and the main cylinder shell (205) form a sealed sliding guide fit, a main piston (206) is arranged in the collar (2082), and a buffer spring (207) is arranged between the main piston (206) and the closed end of the main cylinder shell (205).
  7. 7. The cab front wall structure for construction machinery according to claim 6, wherein the closed end of the cylinder housing (208) is provided with an air hole (2084), and the cylinder housing (208) is internally provided with a split piston (209).
  8. 8. The cab front wall structure for construction machinery according to claim 6, wherein a connecting hole (2083) is provided through an end surface of the slip ring (2081), and a connecting channel for communicating the connecting hole (2083) with the cylinder shell (208) is provided on the master piston (206); The inner wall of the built-in step II is provided with a side hole II (2052) and a side hole IV (2054) in a penetrating way, and the inner wall of the main cylinder shell (205) is provided with a side hole I (2051) and a side hole III (2053) close to the closed end of the main cylinder shell in a penetrating way; A side connecting pipe I (210) is arranged between the side hole I (2051) and the side hole II (2052), a one-way valve (211) is arranged on the side connecting pipe I (210), and the one-way valve (211) is used for enabling liquid medium in the side connecting pipe I (210) to flow unidirectionally from the side hole I (2051) to the side hole II (2052); a second side connecting pipe (212) is arranged between the third side hole (2053) and the fourth side hole (2054), and a control valve (213) is arranged on the second side connecting pipe (212).
  9. 9. The cab front wall structure for a construction machine according to claim 8, wherein initially, the control valve (213) is closed, the slip ring (2081) is in contact with the built-in second step, the split piston (209) is in contact with the main piston (206), and the main cylinder housing (205), the first side connection pipe (210), and the second side connection pipe (212) are filled with the liquid medium.

Description

Cab front wall structure for engineering machinery Technical Field The invention relates to the field of engineering machinery, in particular to a cab front wall structure for engineering machinery. Background The cab front wall structure for engineering machinery is a core component of a cab assembly, and integrates security, functionality, ergonomics and aesthetics. Referring to fig. 1, fig. 1 is a schematic diagram of a front wall structure of an existing cab, which includes a floor a, a front wall outer plate b and a front wall reinforcing beam c, wherein the front wall outer plate b is welded with the floor a, so that the problem of exposed welding marks exists, and the appearance is affected. Besides, safety protection is the primary function of the cab front wall structure, and because the floor a, the front wall outer plate b and the front wall reinforcing beam c which form the cab front wall structure are rigidly connected, when a forward collision or a foreign object collision occurs, the front wall outer plate b absorbs energy through structural deformation, and the living space of a driver is ensured, namely the front wall outer plate b does not have a buffering and damping effect, so that the safety protection performance is relatively poor, and the front wall outer plate b and the front wall reinforcing beam c need to be further improved and lifted. Based on the above problems, the present invention provides a cab front wall structure for construction machinery. Disclosure of Invention In order to solve the problems mentioned in the background above, the present invention provides a cab front wall structure for a construction machine. In order to achieve the technical purpose, the technical scheme adopted by the invention is as follows. The utility model provides a enclose structure before driver's cabin for engineering machine tool, includes floor, preceding enclose inner panel, preceding enclose planking and stiffening beam, preceding enclose the inner panel welding setting in the floor towards one side of locomotive, stiffening beam setting in the floor towards one side of locomotive, preceding enclose the inner panel and enclose the planking before adopting the structural adhesive bonding before, preceding enclose the inner panel and enclose the planking welded connection before and the welding position is located the bottom of enclosing the planking before with; And a buffering and damping component is arranged between the stiffening beam and the front wall outer plate. As a further development and optimization of the invention, the damping elements are provided in a plurality and are distributed correspondingly according to the actual shape of the cab. As a further improvement and optimization of the invention, the buffering and damping component comprises a fixed main seat fixedly arranged on the stiffening beam, a fixed sub-seat fixedly arranged on the front wall outer plate and a middle support seat positioned between the fixed main seat and the fixed sub-seat, wherein a telescopic rod is hinged between the middle support seat and the fixed sub-seat, and a buffering component is arranged between the fixed main seat and the middle support seat. As a further improvement and optimization of the invention, the fixed sub-seat is provided with two main surfaces and side surfaces which are respectively positioned on the front wall outer plate, wherein the main surfaces of the front wall outer plate refer to the surfaces of the front wall outer plate, which are opposite to a driver, and the side surfaces of the front wall outer plate refer to the surfaces of the front wall outer plate, which are positioned on one side of the driver; The telescopic links are correspondingly arranged in two. As a further improvement and optimization of the invention, the telescopic rod comprises an outer sleeve and an inner sliding rod, wherein the closed end of the outer sleeve is hinged with the fixed sub-seat ball, the opening end of the outer sleeve is provided with a built-in step I, the inner sleeve is sleeved with a sliding plug, one end of the inner sliding rod is connected with the sliding plug, the other end of the inner sliding rod penetrates through the built-in step I and then is hinged with the middle support, and a travel spring positioned between the sliding plug and the built-in step I is sleeved outside the inner sliding rod. As a further improvement and optimization of the invention, the buffer component comprises a main cylinder shell and a cylinder separating shell, wherein the closed end of the main cylinder shell is connected with a fixed main seat, the open end of the main cylinder shell is provided with a built-in step II, the closed end of the cylinder separating shell is connected with an intermediate support, the open end of the cylinder separating shell passes through the built-in step II and is coaxially provided with a slip ring, the slip ring and the main cylinder shell form seal