Full-function tripper car hook protection device of arm type bucket wheel machine

Abstract

The utility model relates to the technical field of bulk cargo loading and unloading equipment, in particular to a full-function tripper car hook protection device of an arm type bucket wheel machine, which comprises a main tripper car and swing rods symmetrically and rotatably arranged at the upper part of the main tripper car, and further comprises a mounting base welded and fixed at the rear part of the main tripper car; the hook support is fixed at the upper part of the mounting base; the hook assembly is used for locking or releasing a swing rod rotationally arranged on the tripper car, and the hook assembly comprises a hook rod vertically and rotationally connected with the hook support and a hook head arranged at the front end of the hook rod; the pusher base is fixed to the upper portion of the installation base and located on the front side of the hook support. And the electric hydraulic pusher is vertically and rotationally connected with the hook rod and the upper part of the pusher base respectively. The swing rod is locked and released through the hook assembly, and therefore the problem that when the full-function tripper car works, the swing rod is prone to falling due to pressure relief of an oil cylinder and the like, and safety work of the full-function tripper car is not facilitated is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of bulk material loading and unloading equipment, in particular to a full-function tail car hook protection device for an arm-type bucket wheel machine. Background Art

[0002] Bucket wheel stacker reclaimer is a complete set of equipment for efficient and continuous loading, unloading and conveying of bulk materials, which is widely used in large material yards such as ports, mines and power plants.

[0003] The tail car is an important part of the arm bucket wheel stacker and reclaimer. Due to different working conditions in the material yard, the tail car can be divided into fixed single tail car, hydraulic semi-lying tail car, full-function tail car, etc. The lower part of the tail car is equipped with walking wheels, which can move forward and backward synchronously with the main machine to realize the stacking operation of the entire material yard.

[0004] The full-function tail car is equipped with a main tail car, a secondary tail car, a swing arm, a head hopper, a secondary tail car luffing mechanism, etc. It realizes the high and low position transformation of the secondary tail car through the action of the hydraulic system of the secondary tail car luffing mechanism to realize the stacking operation. When the secondary tail car is in a high position, the two cylinders of the hydraulic system extend, the secondary tail car reaches the stacking position, and the equipment starts the stacking operation. At this time, the two cylinders extend to the longest state of the cylinder at the same time. It is easy to cause the two cylinders to be out of sync due to cylinder pressure relief, unstable pressure, etc., resulting in different falling phenomena. Utility Model Content

[0005] In order to solve at least one of the above technical problems, the utility model proposes a full-function tail car hook protection device for an arm-type bucket wheel machine, by arranging a hook assembly on a hook support, and driving the hook assembly to perform a pitching action through an electric hydraulic pusher, thereby locking or releasing the swing arm, thereby solving the problem that when the full-function tail car is operating, the swing arm is easily caused to fall due to reasons such as cylinder pressure relief, which is not conducive to the safe operation of the full-function tail car.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A full-function tail car hook protection device for an arm-type bucket wheel machine comprises a main tail car and a swing rod symmetrically rotatably arranged on the upper part of the main tail car, and also comprises:

[0008] The installation base is welded and fixed to the rear of the main tail vehicle;

[0009] A hook support, which is fixed to the upper part of the mounting base;

[0010] A hook assembly, which is used to lock or release a swing rod rotatably arranged on the tail car, and the hook assembly includes a hook rod vertically rotatably connected to the hook support and a hook head arranged at the front end of the hook rod;

[0011] A pusher base, which is fixed to the upper portion of the mounting base and is located in front of the hook support;

[0012] The electric hydraulic pusher is used to drive the hook rod to perform a pitching motion relative to the hook support. The electric hydraulic pusher is respectively connected to the hook rod and the upper part of the pusher base for vertical rotation.

[0013] Preferably, it also includes a support seat for supporting the hook rod located at the rear side of the hook support, and the upper part of the support seat is provided with an inclined supporting surface that fits with the rear end of the hook rod.

[0014] Preferably, a shock-absorbing pad is provided on the upper portion of the inclined supporting surface.

[0015] Preferably, the swing arm is provided with a fixed axis along its width direction, and the hook head is provided with a U-shaped bayonet fixed to the fixed axis and opening downward.

[0016] Preferably, a buffer layer is provided on the inner side of the U-shaped bayonet to prevent the hook head from colliding with the fixed shaft.

[0017] Preferably, the hook rod and the hook head are located outside the swing rod, and the fixed shaft is at least partially located outside the swing rod.

[0018] Preferably, the piston rod of the electric hydraulic pusher is vertically rotatably connected to the portion of the hook rod located on the front side of the hook support through an upper connecting rod.

[0019] Preferably, the shock-absorbing pad and the buffer layer are both made of rubber.

[0020] Compared with the prior art, the utility model has the following beneficial effects:

[0021] The utility model sets a hook assembly on the hook support and drives the hook assembly to perform pitching motion through an electric hydraulic pusher. When the swing arm is at a high stockpile position, the swing arm is locked by the hook head so that the swing arm can be stably fixed at the high stockpile position; when it is necessary to take materials, the electric hydraulic pusher pushes the hook head to lift up and release the swing arm.

[0022] The utility model provides a support seat, when the hook rod and the hook head are lifted, a support force is provided to the part of the hook rod located at the rear side of the hook support seat. By arranging an oblique support surface on the upper part of the support seat, the support seat can be well fitted with the lower side of the hook rod in an inclined state to provide effective support. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a structural schematic diagram of a full-function tail car hook protection device (high stockpile position) of an arm-type bucket wheel excavator;

[0024] Figure 2 It is a top view of a full-function tail car hook protection device of an arm-type bucket wheel machine;

[0025] Figure 3 It is a side view of a full-function tail car hook protection device (cross bar detached from the hook head) of an arm-type bucket wheel machine;

[0026] Figure 4 It is a structural schematic diagram of the hook rod (in the lifted state) and the support seat in the utility model;

[0027] Figure 5 for Figure 4 Enlarged view of point A in the middle;

[0028] In the figure: 1. main tail car; 2. swing arm; 21. fixed shaft; 3. mounting base; 4. hook support; 5. hook assembly; 51. hook rod; 52. hook head; 521. U-shaped bayonet; 6. pusher base; 7. electric hydraulic pusher; 8. support seat; 81. oblique support surface. DETAILED DESCRIPTION

[0029] In order to enable those skilled in the art to better understand the technical solutions in the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. It is obvious that the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments of the present invention.

[0030] Please refer to Figure 1-5 A full-function tail car hook protection device for an arm-type bucket wheel machine comprises a main tail car 1 and a swing rod 2 symmetrically rotatably arranged on the upper part of the main tail car 1, and also comprises:

[0031] An installation base 3 is welded and fixed to the rear of the main tail vehicle 1;

[0032] A hook support 4, which is fixed to the upper part of the mounting base 3;

[0033] A hook assembly 5, which is used to lock or release the swing rod 2 rotatably arranged on the tail car, and the hook assembly 5 includes a hook rod 51 vertically rotatably connected to the hook support 4 and a hook head 52 arranged at the front end of the hook rod 51;

[0034] A pusher base 6, which is fixed to the upper portion of the mounting base 3 and is located in front of the hook support 4;

[0035] The electric hydraulic pusher 7 is used to drive the hook rod 51 to perform a pitching motion relative to the hook support 4. The electric hydraulic pusher 7 is vertically rotatably connected to the hook rod 51 and the upper part of the pusher base 6 respectively.

[0036] The utility model arranges a hook assembly 5 on a hook support 4, and drives the hook assembly 5 to perform a pitching motion through an electric hydraulic pusher 7. When the swing arm 2 is at a high stockpile position, the swing arm 2 is locked by a hook head 52, so that the swing arm 2 can be stably fixed at the high stockpile position; when it is necessary to take materials, the electric hydraulic pusher 7 pushes the hook head 52 to lift up and release the swing arm 2.

[0037] It should be noted that the full-function tail car has symmetrically arranged rocker arms 2 and hydraulic luffing mechanisms that drive the rocker arms 2 to do pitching movements. When stacking materials, the hydraulic luffing mechanism drives the rocker arms 2 to do pitching movements, thereby driving the auxiliary tail car to rise to the high stacking position, at which time the oil cylinder in the hydraulic luffing mechanism is in an extended state. In order to avoid the risk of the oil cylinder falling due to pressure relief and other reasons, the hook rods 51 and hook heads 52 symmetrically arranged on both sides of the main tail car 1 are retracted when the piston rod of the electric hydraulic driver drives the hook head 52 to engage and fix with the fixed shaft 21 on the rocker arm 2.

[0038] Please refer to Figure 2 The swing rod 2 is provided with a fixed shaft 21 along its width direction, and the hook head 52 is provided with a U-shaped bayonet 521 which is fixed to the fixed shaft 21 and opens downward.

[0039] Specifically, the relative position of the fixed shaft 21 on the swing rod 2 can be configured as follows: when the swing rod 2 is in a vertical state and the hook rod 51 is in a horizontal state, the horizontal position of the U-shaped bayonet 521 of the hook head 52 is the relative position of the fixed shaft 21 on the swing rod 2. This position setting facilitates the orthogonal fixation of the hook rod 51 and the swing rod 2. At this time, the structural stability between the hook assembly 5 and the swing rod 2 is the best, and it is not easy to loosen or shift. In other words, the risk of the fixed shaft 21 coming out of the U-shaped bayonet 521 is minimized.

[0040] Of course, the relative vertical rotation of the hook rod 51 relative to the hook support 4 can be achieved by a pin structure. It is understandable that the relative height of the pin should be consistent with the relative height of the fixed axis 21 when the swing rod 2 is in the vertical state to ensure that the hook rod 51 and the swing rod 2 are orthogonally fixed.

[0041] In this embodiment, the hook rod 51 and the hook head 52 are located outside the swing rod 2, and the fixed shaft 21 is at least partially located outside the swing rod 2. Preferably, the fixed shaft 21 is fixed at the center position in the width direction of the swing rod 2, and the fixed shaft 21 is partially fixed inside the crossbar and partially located outside the crossbar. In this way, the hook head 52 has enough space to engage and fix with the fixed shaft 21, and the fixed shaft 21 is more secure. Obviously, the fixed shaft 21 can be fixed at other positions of the crossbar, and this application only provides one method that is convenient for implementation.

[0042] Considering that the U-shaped bayonet 521 may collide with the fixed shaft 21, a buffer layer (not shown in the figure) is provided inside the U-shaped bayonet 521 in the above embodiment to prevent the hook head 52 from colliding with the fixed shaft 21. The buffer layer can be provided on the upper side of the inner wall and / or on both sides of the inner wall of the U-shaped bayonet 521, and the material of the buffer layer can be rubber or other materials with a buffering effect.

[0043] Please refer to Figure 3 and Figure 4 This embodiment also includes a support seat 8 for supporting the hook rod 51 located at the rear side of the hook support 4, and an oblique support surface 81 that fits with the rear end of the hook rod 51 is provided on the upper part of the support seat 8.

[0044] It is understandable that when the auxiliary tail car needs to carry out material picking operation, the electric hydraulic pusher 7 pushes the hook rod 51 to lift up, and when the fixed shaft 21 is completely separated from the U-shaped bayonet 521, the swing rod 2 is released. At this time, the lower end surface of the tail end of the hook rod 51 just contacts the support seat 8, and the support seat 8 provides support force to the hook rod 51 to prevent the hook rod 51 from being suspended.

[0045] Please refer to Figure 5 Further, in order to provide a stable supporting force, the upper portion of the support seat 8 in this embodiment is designed as an oblique support surface 81. Specifically, the angle between the oblique support surface 81 and the horizontal plane should be equal to the angle between the lower end surface of the hook rod 51 and the horizontal plane when the hook rod 51 is tilted.

[0046] Considering that the lower end surface of the hook rod 51 may collide with the oblique support surface 81, a shock-absorbing pad is provided on the upper part of the oblique support surface 81 in this embodiment. The material of the shock-absorbing pad can be rubber or other materials with a buffering effect. This application is not limited here.

[0047] Please refer to Figure 1 and Figure 3 As shown, in this embodiment, the electric hydraulic pusher 7 is an Ed type electric hydraulic pusher 7. The piston rod of the electric hydraulic pusher 7 is vertically rotatably connected to the part of the hook rod 51 located on the front side of the hook support 4 through the upper connecting rod. It can be understood that the vertical rotation between the connecting rod and the hook rod 51 can be achieved through a pin shaft. Similarly, the lower part of the electric hydraulic pusher 7 and the upper part of the pusher base 6 can also be connected by a pin shaft.

[0048] It should be noted that the structures and working principles of the main tail car 1, auxiliary tail car, cross bar, hydraulic luffing mechanism and other components in this application belong to the prior art and will not be repeated in this application.

[0049] The above is a specific implementation of the embodiment of the utility model. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the utility model. These improvements and modifications should also be regarded as the scope of protection of this application.

Claims

1. A full-function tail car hook protection device for an arm-type bucket wheel machine, comprising a main tail car (1) and a swing rod (2) symmetrically rotatably arranged on the upper part of the main tail car (1), characterized in that: Also includes: A mounting base (3) is welded and fixed to the rear of the main tail vehicle (1); A hook support (4) fixed to the upper portion of the mounting base (3); A hook assembly (5) for locking or releasing a swing rod (2) rotatably arranged on the tail vehicle, the hook assembly (5) comprising a hook rod (51) vertically rotatably connected to the hook support (4) and a hook head (52) arranged at the front end of the hook rod (51); A pusher base (6), which is fixed to the upper part of the mounting base (3) and is located in front of the hook support (4); The electric hydraulic pusher (7) is used to drive the hook rod (51) to perform a pitching motion relative to the hook support (4); the electric hydraulic pusher (7) is respectively connected to the hook rod (51) and the upper part of the pusher base (6) in a vertical rotation manner.

2. According to claim 1, a full-function tail car hook protection device for an arm-type bucket wheel machine is characterized in that: It also includes a support seat (8) for supporting the hook rod (51) located at the rear side of the hook support (4), and the upper part of the support seat (8) is provided with an oblique support surface (81) that fits with the rear end of the hook rod (51).

3. According to claim 2, a full-function tail car hook protection device for an arm-type bucket wheel machine is characterized in that: A shock-absorbing pad is provided on the upper portion of the oblique supporting surface (81).

4. According to claim 3, a full-function tail car hook protection device for an arm-type bucket wheel machine is characterized in that: The swing rod (2) is provided with a fixed shaft (21) along its width direction, and the hook head (52) is provided with a U-shaped bayonet (521) which is fixedly mounted on the fixed shaft (21) and opens downward.

5. According to claim 4, a full-function tail car hook protection device for an arm-type bucket wheel machine is characterized in that: A buffer layer is provided on the inner side of the U-shaped bayonet (521) to prevent the hook head (52) from colliding with the fixed shaft (21).

6. A full-function tail car hook protection device for an arm-type bucket wheel machine according to claim 4, characterized in that: The hook rod (51) and the hook head (52) are located outside the swing rod (2), and the fixed shaft (21) is at least partially located outside the swing rod (2).

7. A full-function tail car hook protection device for an arm-type bucket wheel machine according to claim 1, characterized in that: The piston rod of the electric hydraulic pusher (7) is vertically rotatably connected to the part of the hook rod (51) located on the front side of the hook support (4) through an upper connecting rod.

8. The full-function tail car hook protection device of an arm-type bucket wheel machine according to claim 5, characterized in that: The shock-absorbing pad and the buffer layer are both made of rubber.

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