Material grabbing machine with lifting cab

Abstract

The invention relates to the field of carrying equipment, and discloses a material grabbing machine with a lifting cab, which comprises a cab positioned on a rotary platform assembly, a bracket arranged at the bottom of the cab, a lifting device arranged on the rotary platform assembly and used for lifting the bracket, and a placing platform plate arranged on the rotary platform assembly and used for placing the cab, a locking device is arranged between the placing platform plate and the bracket, the locking device comprises a lower lock seat fixed on the placing platform plate, the lower lock seat comprises a base column, a locking column, a connecting bolt and a spring, a lock cavity is formed in the top of the base column, grooves are formed in the end surfaces of the opposite surfaces of the locking columns on the two sides, and the grooves are communicated with the lock cavity; the lock cylinder column is fixed to the bracket and used for being inserted into the lock cavity of the base column, and a protruding ring extends from the circumferential face of the lock cylinder column. According to the cab locking device, the cab is locked, the stability of the cab is guaranteed, and the safety of a driver is improved.

Description

Technical Field

[0001] The present application relates to the field of handling equipment, and in particular to a material grabber with a lifting cab. Background Art

[0002] The lifting cab grabber is a specially configured construction machinery, which is usually used for material loading and unloading operations in ports, scrap yards, garbage dumps and other places. The characteristic of this machine is that its cab can be raised and lowered, which is designed to provide the driver with a wider field of vision, thereby improving work efficiency and safety. The lifting cab can be adjusted in height according to the needs of the operation, so that the driver can see the work area more clearly, which is more important when handling large materials or working in complex terrain.

[0003] However, in the process of implementing relevant technical solutions, it was found that there are at least the following technical problems: the life cycle of the grabber is very long, and different functions can be achieved by replacing the clamps at the end. During the long life cycle, the equipment is not only used in environments where the cab needs to be raised, but may also need to be used for a long time in ordinary working environments without raising the cab. The cab is associated with the lifting device for a long time. When the lifting device is not used for a long time, it cannot be known when it fails, and the stability of the cab cannot be guaranteed. Summary of the invention

[0004] The present application provides a material grabber with a lifting cab, thereby solving the technical problem in the prior art that the cab is associated with the lifting device for a long time, and when the lifting device is not used for a long time and fails, it cannot be detected, and the stability of the cab cannot be guaranteed. The application realizes locking of the cab, ensures the stability of the cab, and improves the safety of the driver.

[0005] The present application provides a material grabber with a lifting cab, comprising a cab located on a rotating platform assembly, a bracket being arranged at the bottom of the cab, a lifting device being arranged on the rotating platform assembly for lifting the bracket, a placement platform plate being arranged on the rotating platform assembly for placing the cab, a locking device being arranged between the placement platform plate and the bracket, wherein the locking device comprises: a lower locking seat fixed to the placement platform plate, the lower locking seat comprising a base column, locking columns inserted at both sides of the base column, a connecting bolt passing through one locking column and threadedly connected to the other locking column, a spring located between the locking columns at both sides, a locking cavity starting from the top of the base column, grooves being provided on the end surfaces of the opposite surfaces of the locking columns at both sides, the grooves being communicated with the locking cavity; a lock core column being fixed on the bracket, the lock core column being used to be inserted into the lock cavity of the base column, a convex ring extending from the circumferential surface of the lock core column, the convex ring being used to be inserted into the grooves of the locking columns at both sides.

[0006] Furthermore, the bracket includes: a vertical plate, which is vertically fixed on the rear back side of the cab, and the vertical plate is arranged on both sides of the rear back side of the cab; a main beam plate, which is vertically fixed on the bottom surface of the cab, and the main beam plate is arranged on both sides of the bottom surface of the cab, and the bottom end of the vertical plate is fixed to the end of the main beam plate; a cross beam plate, which is perpendicular to the main beam plate and fixed between the main beam plates on both sides, and the lock core column is fixed on the cross beam plate.

[0007] Furthermore, the lifting device includes: a supporting side plate, which is vertically fixed on the placement platform plate and located behind the cab, and the supporting side plates are vertically fixed on both sides of the placement platform plate; a swing plate, one end of which is hinged to the top of the supporting side plate, and the other end is hinged to the vertical plate, and two swing plates are provided on each side of the supporting side plate and are parallel to each other; a hydraulic cylinder, which is located in the middle position between the supporting side plates on both sides, and the cylinder seat is hinged to the placement platform plate, and the end of the telescopic rod in the hydraulic cylinder is hinged between the swing plates on both sides.

[0008] Furthermore, the lifting device also includes: a back plate, which is fixed between the swing plates above the supporting side plates on both sides, and the hydraulic pipeline connecting the cab and the revolving platform assembly is attached to the back plate.

[0009] Furthermore, the end surfaces of the opposite surfaces of the locking columns on both sides are provided with annular grooves, and the two ends of the spring are respectively placed in the annular grooves of the locking columns on both sides.

[0010] Furthermore, movable cavities are provided on both sides of the lower lock seat, the movable cavities on both sides are communicated with the lock cavity, and the locking columns on both sides are respectively placed in the movable cavities on both sides.

[0011] Furthermore, a bottom hole is formed on the bottom surface of the lower lock seat, and the bottom hole is communicated with the movable cavity.

[0012] Furthermore, a threaded hole is formed on the end surface of the locking column on one side, and the threaded hole is threadedly connected to the connecting bolt, and a countersunk hole is formed on the end surface of the locking column on the other side for the connecting bolt to pass through.

[0013] Furthermore, guide transverse grooves are provided on the cavity walls of the movable cavities on both sides, and guide transverse bars are integrally formed on the outer walls of the locking columns on both sides, and there is a clearance fit between the guide transverse bars and the guide transverse grooves.

[0014] One or more technical solutions provided in this application have at least the following technical effects or advantages:

[0015] When the lifting device is not used for a long time, since a locking device is provided between the placement platform plate and the bracket, the lifting device can be used to lower the cab and move the cab closer to the placement platform plate, and the lock cylinder column on the bracket can be inserted into the lock cavity in the base column. By rotating the connecting bolt, the lock cylinder column can be locked in the base column, and finally the cab can be firmly fixed to the placement platform plate. In this way, the technical problem that the lifting device is not used for a long time and the failure cannot be detected, causing safety hazards, is solved, the cab can be locked, the stability of the cab is ensured, and the safety of the driver is improved.

[0016] The back plate can be used to cover the gap between the upper two side swing plates, and the hydraulic pipeline connecting the cab and the rotary platform assembly is attached to the back plate. Therefore, it can be ensured that the hydraulic pipeline will not be clamped by other components during the operation of the lifting device, ensuring the normal operation of the grabber. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the overall structure of the material grabber in the embodiment of the present application;

[0018] Figure 2 for Figure 1 Another perspective of the center grabber;

[0019] Figure 3 for Figure 1 Another view of the grabber in the middle;

[0020] Figure 4 This is a schematic diagram of the overall structure of the locking device in the embodiment of the present application;

[0021] Figure 5 It is a cross-sectional schematic diagram of the locking device in the embodiment of the present application in an exploded state;

[0022] Figure 6 It is a cross-sectional schematic diagram of the locking device in the locked state in the embodiment of the present application;

[0023] Figure 7 It is a three-dimensional cross-sectional schematic diagram of the locking device in the locked state in the embodiment of the present application;

[0024] In the figure: 1. walking assembly; 2. slewing platform assembly; 21. placing platform plate; 3. cab; 4. working arm assembly; 5. bracket; 51. vertical plate; 52. main beam plate; 53. cross beam plate; 6. lifting device; 61. supporting side plate; 62. swing plate; 63. hydraulic cylinder; 631. telescopic rod; 64. back plate; 7. locking device; 71. lower lock seat; 711. base column; 7111. lock cavity; 7112. moving cavity; 7113. bottom hole; 7114. guide transverse groove; 712. locking column; 7121. groove; 7122. ring groove; 7123. threaded hole; 7124. countersunk hole; 7125. guide cross bar; 713. connecting bolt; 714. spring; 72. lock core column; 721. convex ring; 101. hydraulic pipeline. DETAILED DESCRIPTION

[0025] The embodiment of the present application discloses a material grabber with a lifting cab, which lowers the cab 3 by utilizing the lifting device 6 and makes the cab 3 approach the placement platform plate 21, and inserts the lock cylinder column 72 on the bracket 5 into the lock cavity 7111 in the base column 711, and locks the lock cylinder column 72 in the base column 711 by rotating the connecting bolt 713, so that the cab 3 can be firmly fixed to the placement platform plate 21. When the cab 3 needs to be lifted again, the connecting bolt 713 is rotated in the opposite direction to unlock the lock cylinder column 72, so that the lock cylinder column 72 can be separated from the base column 711, and the bracket 5 can also be separated from the placement platform plate 21, thereby solving the technical problem that the cab 3 is associated with the lifting device 6 for a long time in the prior art, and when the lifting device 6 is not used for a long time and fails, it cannot be detected, and the stability of the cab 3 cannot be guaranteed, thereby realizing the locking of the cab 3, ensuring the stability of the cab 3, and improving the safety of the driver.

[0026] In order to better understand the above technical solution, the above technical solution will be described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0027] Reference Figure 1-Figure 4A material grabber with a lifting cab comprises a walking assembly 1, a rotating platform assembly 2, a cab 3, a working arm assembly 4, a bracket 5, a lifting device 6 and a locking device 7. The walking assembly 1 is used for the material grabber to walk on the ground, the rotating platform assembly 2 can rotate in a circumferential direction, the working arm assembly 4 is mounted on the rotating platform assembly 2, the mechanical arm on the working arm assembly 4 is hydraulically controlled, and the clamping claw at the end can be used to clamp materials, the rotating platform assembly 2 is provided with a placing platform plate 21 for placing the cab 3, the bracket 5 is mounted on the bottom of the cab 3, the lifting device 6 is mounted on the placing platform plate 21 and is located behind the cab 3, the lifting device 6 is used to lift the bracket 5, the locking device 7 is composed of different components, which are respectively mounted on the bracket 5 and the placing platform plate 21, and the locking device 7 is used to lock the bracket 5 to the placing platform plate 21.

[0028] Reference Figure 1-Figure 3 The bracket 5 includes a vertical plate 51, a main beam plate 52 and a cross beam plate 53. There are two vertical plates 51, which are both vertically arranged and parallel to each other. The two vertical plates 51 are respectively fixed on the rear back of the cab 3 and are located on both sides of the rear back of the cab 3. There are two main beam plates 52, which are horizontally arranged and parallel to each other. The two main beam plates 52 are respectively fixed on the lower bottom surface of the cab 3 and are located on both sides of the lower bottom surface. The length direction of the main beam plate 52 is consistent with the front of the cab 3, and one end of the main beam plate 52 extends out of the rear back of the cab 3. The bottom end of the vertical plate 51 is fixed on the main beam plate 52. There are multiple cross beam plates 53, which are horizontal and fixed between the main beam plates 52 on both sides. Each cross beam plate 53 is parallel to each other and perpendicular to the main beam plate 52.

[0029] Continue to refer to Figure 1-Figure 3The lifting device 6 includes a supporting side plate 61, a swing plate 62, a hydraulic cylinder 63 and a back plate 64. Two supporting side plates 61 are provided, and the two supporting side plates 61 are parallel to each other and are both located on the back side of the cab 3. The two supporting side plates 61 are respectively located on both sides of the length direction of the placement platform plate 21. The bottom of the supporting side plate 61 is fixed on the placement platform plate 21, and the top is bent and tilted upward in the direction away from the cab 3. One end of the swing plate 62 is hinged to the top of the supporting side plate 61, and the other end is hinged to the vertical plate 51. Two swing plates 62 are provided on each side of the supporting side plate 61, and are arranged up and down and parallel to each other. The hydraulic cylinder 63 is located in the middle position between the supporting side plates 61 on both sides, and the cylinder seat of the hydraulic cylinder 63 is hinged to the placement platform plate 21. The end of the telescopic rod 631 in the hydraulic cylinder 63 is hinged between the two swing plates 62 on the top. The back plate 64 is fixed between the upper swing plates 62 of the supporting side plates 61 on both sides. The back plate 64 can be used to cover the gap between the upper swing plates 62 on both sides. The hydraulic pipeline 101 connecting the cab 3 and the rotating platform assembly 2 is attached to the back plate 64. Therefore, it can be ensured that the hydraulic pipeline 101 will not be clamped by other components during the operation of the lifting device 6, thereby ensuring the normal operation of the grabber.

[0030] The cab 3 is fixedly mounted on the bracket 5, and the bracket 5 is connected to the lifting device 6. When the cab 3 needs to be lifted, the telescopic rod 631 in the hydraulic cylinder 63 is extended to lift the swing plate 62 upward. Since a parallelogram is formed between the vertical plate 51, the two swing plates 62, and the supporting side plates 61, it is possible to ensure that the bracket 5 is lifted or lowered horizontally, thereby realizing the lifting and lowering of the cab 3.

[0031] Reference Figure 4-Figure 7, there are multiple locking devices 7, and in a specific implementation, four locking devices 7 can be provided, and the four locking devices 7 are respectively located at the four corners of the placement platform plate 21. The locking device 7 includes a lower lock seat 71 and a lock core column 72. The lower lock seat 71 is fixed on the placement platform plate 21. In a specific implementation, the lower lock seat 71 can be welded to the placement platform plate 21. The lower lock seat 71 includes a seat column, a locking column 712, a connecting bolt 713 and a spring 714. The seat column is columnar and vertically arranged. A locking cavity 7111 is provided at the top of the seat column, and moving cavities 7112 are symmetrically provided on both sides of the seat column. The moving cavities 7112 on both sides are A locking column 712 is placed, the locking column 712 is cylindrical, the axis of the locking column 712 is perpendicular to the axis of the seat column, the moving cavities 7112 on both sides are connected to the locking cavity 7111, the cavity walls of the moving cavities 7112 on both sides are provided with guide transverse grooves 7114, and the outer walls of the locking columns 712 on both sides are integrally formed with guide transverse bars 7125, and the gap between the guide transverse bars 7125 and the guide transverse grooves 7114 is matched, and the guide transverse bars 7125 and the guide transverse grooves 7114 are used to form a guide bar 7125. The cooperation between the grooves 7114 can ensure that the locking column 712 will not rotate in the moving cavity 7112. In addition, the end surfaces of the opposite surfaces of the locking columns 712 on both sides are provided with annular grooves 7122, and the two ends of the spring 714 are respectively placed in the annular grooves 7122 of the locking columns 712 on both sides. The annular grooves 7122 can prevent the sliding of the spring 714. Further, a threaded hole 7123 is provided on the end surface of one side of the locking column 712. The threaded hole 7123 is provided with a threaded hole 7123. The orifice is located in the movable cavity 7112, and a countersunk hole 7124 is provided in the locking column 712 on the other side. The axis of the countersunk hole 7124 is colinear with the axis of the threaded hole 7123. The diameters of the threaded hole 7123 and the countersunk hole 7124 are both smaller than the inner diameter of the annular groove 7122. The connecting bolt 713 passes through the countersunk hole 7124 and is threadedly connected to the threaded hole 7123. By continuously rotating the connecting bolt 713, the locking columns 712 on both sides can be gradually brought closer together, and by flipping them, they can be gradually moved away.

[0032] Continue to refer to Figure 4-Figure 7The end surfaces of the opposite sides of the locking columns 712 on both sides are provided with grooves 7121, the grooves 7121 are located above the annular grooves 7122, and the openings of the grooves 7121 are located in the moving cavity 7112. The lock cylinder column 72 is fixed on the cross beam plate 53 of the bracket 5, and the lock cylinder column 72 is used to be inserted into the lock cavity 7111 of the base column 711. The bottom circumference of the lock cylinder column 72 is extended with a convex ring 721, and the convex ring 721 is used to be inserted into the grooves 7121 of the locking columns 712 on both sides. When the connecting bolt 713 is rotated, the locking columns 712 on both sides can be gradually approached, and the groove 7121 on the locking column 712 will be stuck on the convex ring 721 of the lock cylinder column 72, so that the lock cylinder column 72 can be locked in the base column 711. When the connecting bolt 713 is rotated in the opposite direction, the locking columns 712 on both sides can be gradually moved away from each other, and the groove 7121 on the locking column 712 will be separated from the convex ring 721 of the lock cylinder column 72, so that the lock cylinder column 72 can be unlocked and the lock cylinder column 72 can be separated from the base column 711.

[0033] This application can explain its functional principle through the following operation methods:

[0034] The cab 3 is fixedly mounted on the bracket 5, and the bracket 5 is connected to the lifting device 6. When the cab 3 needs to be lifted, the telescopic rod 631 in the hydraulic cylinder 63 is extended to lift the swing plate 62 upward. Since a parallelogram is formed between the vertical plate 51, the two swing plates 62, and the supporting side plates 61, the horizontal lifting of the bracket 5 can be ensured, thereby realizing the lifting of the cab 3. In the lifting process, the hydraulic pipeline 101 connecting the cab 3 and the rotating platform assembly 2 is attached to the back plate 64, ensuring that the hydraulic pipeline 101 will not be clamped by other components during the operation of the lifting device 6, so that the grabber can operate normally.

[0035] When the grabber is used for a long time in an operating environment where there is no need to lift the cab 3, the lifting device 6 is used to lower the cab 3 and make the cab 3 approach the placement platform plate 21, and the lock column 72 on the bracket 5 is inserted into the lock cavity 7111 in the base column 711. By rotating the connecting bolt 713, the locking columns 712 on both sides can be gradually approached, and the groove 7121 on the locking column 712 will be stuck on the convex ring 721 of the locking column 72, so that the locking column 72 can be locked in the base column 711, and finally the cab 3 can be firmly fixed to the placement platform plate 21. When it is necessary to lift the cab 3 again, the connecting bolt 713 is rotated in the opposite direction, so that the locking columns 712 on both sides can be gradually moved away, and the groove 7121 on the locking column 712 will be separated from the convex ring 721 of the locking column 72, so that the locking column 72 can be unlocked, the locking column 72 can be separated from the base column 711, and the bracket 5 can also be separated from the placement platform plate 21.

[0036] The present invention solves the technical problem in the prior art that the cab 3 is associated with the lifting device 6 for a long time, and when the lifting device 6 is not used for a long time and fails, it cannot be detected, and the stability of the cab 3 cannot be guaranteed. The cab 3 can be locked, the stability of the cab 3 is guaranteed, and the safety of the driver is improved.

[0037] Obviously, those skilled in the art can make various changes and modifications to the present application without departing from the spirit and scope of the present application. Thus, if these modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application is also intended to include these modifications and variations.

[0038] What has been described above is only a preferred specific implementation manner of the embodiments of the present application, but the protection scope of the present application is not limited thereto. Any technician familiar with the technical field can make equivalent substitutions or changes according to the technical scheme and concept of the present application within the technical scope disclosed in the present application, which should be covered by the protection scope of the present application.

Claims

1. A material handling machine with a lifting cab, comprising a cab (3) located on a rotary platform assembly (2), It is characterized in that A bracket (5) is provided at the bottom of the cab (3), a lifting device (6) for lifting and lowering the bracket (5) is provided on the revolving platform assembly (2), a placement platform plate (21) for placing the cab (3) is provided on the revolving platform assembly (2), and a locking device (7) is provided between the placement platform plate (21) and the bracket (5), wherein: The locking device (7) comprises: A lower locking seat (71) is fixed on the placing platform plate (21), and the lower locking seat (71) includes a base column (711), locking columns (712) inserted on both sides of the base column (711), a connecting bolt (713) passing through the locking column (712) on one side and threadedly connected to the locking column (712) on the other side, and a spring (714) located between the locking columns (712) on both sides. A locking cavity (7111) is formed at the top of the base column (711), and grooves (7121) are formed on the end surfaces of the opposite surfaces of the locking columns (712) on both sides, and the grooves (7121) are connected to the locking cavity (7111); A lock core column (72) is fixed on the bracket (5), and the lock core column (72) is used to be inserted into the lock cavity (7111) of the base column (711). A convex ring (721) extends from the circumference of the lock core column (72), and the convex ring (721) is used to be inserted into the grooves (7121) of the locking columns (712) on both sides.

2. A material grabber with a lifting cab as claimed in claim 1, It is characterized in that The bracket (5) comprises: A vertical plate (51) is vertically fixed on the rear back side of the cab (3), and the vertical plate (51) is provided on both sides of the rear back side of the cab (3); A main beam plate (52) is vertically fixed on the bottom surface of the cab (3), and the main beam plates (52) are arranged on both sides of the bottom surface of the cab (3), and the bottom end of the vertical plate (51) is fixed to the end of the main beam plate (52); The cross beam plate (53) is perpendicular to the main beam plate (52) and is fixed between the main beam plates (52) on both sides. The lock core column (72) is fixed on the cross beam plate (53).

3. A material grabber with a lifting cab as claimed in claim 2, It is characterized in that The lifting device (6) comprises: A supporting side plate (61) is vertically fixed on the placement platform plate (21) and is located behind the cab (3), and the supporting side plates (61) are vertically fixed on both sides of the placement platform plate (21); A swing plate (62), one end of which is hinged to the top of the supporting side plate (61), and the other end of which is hinged to the vertical plate (51), and two swing plates (62) are provided on each supporting side plate (61) and are parallel to each other; The hydraulic cylinder (63) is located in the middle between the supporting side plates (61) on both sides, and the cylinder seat is hinged on the placement platform plate (21). The end of the telescopic rod (631) in the hydraulic cylinder (63) is hinged between the swing plates (62) on both sides.

4. A material grabber with a lifting cab as claimed in claim 3, It is characterized in that The lifting device (6) further comprises: A back plate (64) is fixed between the swing plates (62) above the supporting side plates (61) on both sides, and a hydraulic pipeline (101) connecting the cab (3) and the slewing platform assembly (2) is attached to the back plate (64).

5. A material grabber with a lifting cab as claimed in claim 1, It is characterized in that The end surfaces of the opposite sides of the locking columns (712) on both sides are provided with annular grooves (7122), and the two ends of the spring (714) are respectively placed in the annular grooves (7122) of the locking columns (712) on both sides.

6. A material grabber with a lifting cab as claimed in claim 1, It is characterized in that The lower lock seat (71) is provided with movable cavities (7112) on both sides, the movable cavities (7112) on both sides are connected to the lock cavity (7111), and the locking columns (712) on both sides are respectively placed in the movable cavities (7112) on both sides.

7. A material grabber with a lifting cab as claimed in claim 6, It is characterized in that A bottom hole (7113) is provided on the bottom surface of the lower locking seat (71), and the bottom hole (7113) is communicated with the movable cavity (7112).

8. A material grabber with a lifting cab as claimed in claim 1, It is characterized in that A threaded hole (7123) is provided on the end surface of the locking column (712) on one side, and the threaded hole (7123) is threadedly connected to the connecting bolt (713), and a countersunk hole (7124) is provided on the end surface of the locking column (712) on the other side for the connecting bolt (713) to pass through.

9. A material grabber with a lifting cab as claimed in claim 1, It is characterized in that A guide transverse groove (7114) is provided on the cavity wall of the movable cavity (7112) on both sides, and a guide transverse bar (7125) is integrally formed on the outer wall of the locking column (712) on both sides, and a clearance fit is formed between the guide transverse bar (7125) and the guide transverse groove (7114).

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