Auxiliary frame of mine wrecker

Abstract

The invention discloses a mining wrecker auxiliary frame and a working mechanism, the auxiliary frame and a wrecker frame are connected in sequence, the working mechanism is used for connecting the auxiliary frame and a fault vehicle, one end of the working mechanism and the auxiliary frame are connected together in a relative rotation mode, and the other end of the working mechanism is connected with the fault vehicle. The middle of the working mechanism is connected with the auxiliary frame through a lifting cylinder, and the other end of the working mechanism is used for being connected with a fault vehicle. The mounting and using requirements on the wrecker with the electric wheels are met, the structural strength reliability and rigidity matching reasonability of the wrecker are met when the wrecker drags various types of electric wheel dump trucks, namely faulty trucks, and the requirement of a user for the service life can be met.

Description

Technical Field

[0001] This invention belongs to the field of engineering machinery technology, specifically an auxiliary frame for a mining electric wheel clearing vehicle. Background Technology

[0002] With the increasing demand for mining and transportation in large-scale open-pit coal mines, iron mines, copper mines, and dam projects, the market size of electric wheel dump trucks has expanded accordingly. Various models of electric wheel dump trucks from different manufacturers have emerged in the market. Users have increasingly higher requirements for the performance and quality of mining vehicles, and "multi-purpose vehicles" are gaining popularity. Developing multi-functional electric wheel wreckers has become an inevitable trend. As a crucial load-bearing structure on electric wheel wreckers, the auxiliary frame must meet the needs of both large-tonnage dump trucks and other types of dump trucks. Therefore, it is essential to determine the structural form of the auxiliary frame and the strength level and steel plate thickness of the main materials required based on the finite element method analysis of the vehicle's strength and stiffness. This ensures the overall and local structural strength of the auxiliary frame is reliable and the stiffness is reasonably matched, while minimizing the weight of the auxiliary frame to further reduce the overall vehicle weight and meet users' service life requirements.

[0003] Existing electric wheeled recovery vehicle auxiliary frames generally have low connection capacity, weak anti-sway and anti-movement capabilities, low safety performance, poor working reliability, and limited application range. They are also prone to early structural cracking and connection failure. Summary of the Invention

[0004] To address the aforementioned problems in the existing technology, the purpose of this invention is to provide a reliable auxiliary frame for a mining electric wheel dump truck. This frame not only meets the requirements for installation and use on the electric wheel dump truck, but also ensures reliable structural strength and reasonable stiffness matching when the dump truck tows various models of electric wheel dump trucks (i.e., disabled vehicles), and meets the user's service life requirements.

[0005] To achieve the above objectives, the technical solution adopted by the present invention is as follows: An auxiliary frame for a mining recovery vehicle is provided, comprising a working mechanism, the auxiliary frame, and the recovery vehicle frame connected in sequence. The working mechanism is used to connect the auxiliary frame and the disabled vehicle. One end of the working mechanism is rotatably connected to the auxiliary frame, the middle part of the working mechanism is connected to the auxiliary frame via a lifting cylinder, and the other end of the working mechanism is used to connect the disabled vehicle.

[0006] As a further improvement to the above technical solution: The auxiliary frame includes a left longitudinal beam, a right longitudinal beam, a first mounting pin, and a second mounting pin. The left and right longitudinal beams are arranged symmetrically at intervals and connected together. One end of the working mechanism is inserted at an angle downward between the front end of the left longitudinal beam and the front end of the right longitudinal beam. The left longitudinal beam and the working mechanism, as well as the right longitudinal beam and the working mechanism, are each connected together by a first mounting pin. The auxiliary frame is supported on the frame. The rear end of the left longitudinal beam and the frame, as well as the rear end of the right longitudinal beam and the frame, are each connected together by a second mounting pin.

[0007] The auxiliary frame also includes a front square crossbeam, a first rear steel tube crossbeam, a second rear steel tube crossbeam, and a third rear steel tube crossbeam. The front square crossbeam, the second rear steel tube crossbeam, the third rear steel tube crossbeam, and the first rear steel tube crossbeam are all located between the left longitudinal beam and the right longitudinal beam. The front square crossbeam is located at the front end of the auxiliary frame, and the second rear steel tube crossbeam, the third rear steel tube crossbeam, and the first rear steel tube crossbeam are located at the rear end of the auxiliary frame. The two ends of the front square crossbeam, the two ends of the second rear steel tube crossbeam, the two ends of the third rear steel tube crossbeam, and the two ends of the first rear steel tube crossbeam are respectively connected to the left longitudinal beam and the right longitudinal beam. The third rear steel tube crossbeam, the second rear steel tube crossbeam, and the first rear steel tube crossbeam are arranged sequentially from top to bottom.

[0008] The auxiliary frame also includes two tie rods: the front end of the left longitudinal beam is connected to the frame via one tie rod, and the front end of the right longitudinal beam is connected to the frame via another tie rod.

[0009] The auxiliary frame also includes two second anti-sway seats, which are respectively connected to the front bottom of the left longitudinal beam and the front bottom of the right longitudinal beam. The second anti-sway seat includes two parallel spaced plates. The frame has two parallel longitudinal beams, and the lower planes of the left and right longitudinal beams rest on the two longitudinal beams respectively. When the auxiliary frame is supported and connected to the frame, each longitudinal beam of the frame is located between the two plates of a second anti-sway seat.

[0010] The auxiliary frame also includes two first anti-sway seats, which are respectively connected to the rear end of the left longitudinal beam and the rear end of the right longitudinal beam. The lower end of the first anti-sway seat is connected to the left and right longitudinal beams, and the upper end of the first anti-sway seat extends upward beyond the top of the left and right longitudinal beams. The middle part of the working mechanism is located between the two first anti-sway seats.

[0011] Starting from the first mounting pin, the working mechanism extends upward at an angle to the space between the two first anti-sway seats, and then tilts downward at an angle after passing between the two first anti-sway seats, forming an L-shaped structure.

[0012] A strut structure is installed on the side of the working mechanism facing the auxiliary frame at the L-shaped transition point. The strut structure can rotate relative to the working mechanism and can be supported on two mounting seats on the auxiliary frame.

[0013] The strut structure 1021 includes two spaced-apart long struts and two spaced-apart short struts. The two short struts are fixedly connected to the two long struts respectively. The included angle between the long struts and the short struts is an acute angle. The length of the long struts is greater than the length of the short struts. The short struts are closer to the first mounting pin than the long struts. The distance between the two long struts and the distance between the two short struts on the strut structure are equal to the distance between the two mounting seats. When the strut structure is supported on the mounting seats, the bottom of the two long struts or the bottom of the two short struts of the strut structure is supported on the mounting seats. The two long struts and the two short struts on the strut structure cannot be supported on the mounting seats at the same time.

[0014] The beneficial effects of this invention are: compact structure, high safety performance, long service life, wide applicability, and suitability for installation and use on recovery vehicles, especially electric wheel recovery vehicles. It meets the requirements of natural conditions in various open-pit mines, allows recovery vehicles to tow various models of electric wheel dump trucks (disabled vehicles), and meets the structural strength and rigidity requirements of recovery vehicles during towing operations. It can sequentially tow multiple models of disabled electric wheel dump trucks back to the mine repair shop for repair. The auxiliary frame structure is reliable, the connection between the upper and lower parts is reasonable and reliable, it has strong anti-sway and anti-movement capabilities, high safety performance, long service life, and wide applicability. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the assembly structure of an auxiliary frame, a breakdown vehicle frame, and a working mechanism according to an embodiment of the present invention.

[0016] Figure 2 yes Figure 1 Another perspective structural diagram.

[0017] Figure 3 This is a schematic diagram of the auxiliary frame structure according to an embodiment of the present invention.

[0018] Figure 4 yes Figure 3 Another perspective structural diagram.

[0019] Figure 5 This is a schematic diagram of the strut structure on the working mechanism of a clearing vehicle according to an embodiment of the present invention.

[0020] Figure 6 This is a cross-sectional diagram of the long strut placement structure in the upper strut structure of the working mechanism when a tow truck is towing a disabled vehicle.

[0021] Figure 7 This is a cross-sectional diagram of the short strut placement structure in the working mechanism of a tow truck when it is not towing a disabled vehicle. Detailed Implementation

[0022] The specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0023] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0024] An auxiliary frame 100 for a mining electric wheeled recovery vehicle is disclosed. The auxiliary frame 100 is mounted on the recovery vehicle's frame 101, and is connected to the disabled vehicle via a working mechanism 102 for subsequent towing. Specifically, the working mechanism 102 connects the auxiliary frame 100 and the disabled vehicle. Overall, the working mechanism 102, the auxiliary frame 100, and the recovery vehicle's frame 101 are arranged sequentially from top to bottom, as follows: Figure 1 and 2 As shown.

[0025] like Figures 2-5 As shown, the auxiliary frame 100 includes a left longitudinal beam 1, a right longitudinal beam 2, a first mounting pin 3, a tie rod seat 4, a tie rod 5, a first anti-sway seat 6, a second mounting pin 7, a second anti-sway seat 8, a front square crossbeam 9, a first lifting cylinder support 10, a first rear steel tube crossbeam 11, a second rear steel tube crossbeam 12, a reinforcing steel tube brace 13, a third rear steel tube crossbeam 14, and a positioning seat 15.

[0026] The left longitudinal beam 1 and right longitudinal beam 2 are symmetrical structures, arranged alternately and symmetrically. The front square crossbeam 9, the second rear steel tube crossbeam 12, the third rear steel tube crossbeam 14, and the first rear steel tube crossbeam 11 are all located between the left longitudinal beam 1 and the right longitudinal beam 2. The front square crossbeam 9 is located at the front end of the auxiliary frame 100, and the second rear steel tube crossbeam 12, the third rear steel tube crossbeam 14, and the first rear steel tube crossbeam 11 are located at the rear end of the auxiliary frame 100. The two ends of the front square crossbeam 9, the two ends of the second rear steel tube crossbeam 12, the two ends of the third rear steel tube crossbeam 14, and the two ends of the first rear steel tube crossbeam 11 are respectively welded to the left longitudinal beam 1 and the right longitudinal beam 2.

[0027] In the vertical direction, the third rear steel pipe crossbeam 14, the second rear steel pipe crossbeam 12, and the first rear steel pipe crossbeam 11 are arranged sequentially from top to bottom; in the front-back direction, the third rear steel pipe crossbeam 14, the second rear steel pipe crossbeam 12, and the first rear steel pipe crossbeam 11 are arranged sequentially from front to back. Preferably, among the third rear steel pipe crossbeam 14, the second rear steel pipe crossbeam 12, and the first rear steel pipe crossbeam 11, the distance between adjacent pairs in the front-back direction is less than the distance in the vertical direction.

[0028] As shown above, the left longitudinal beam 1, right longitudinal beam 2, front square crossbeam 9, second rear steel pipe crossbeam 12, third rear steel pipe crossbeam 14 and first rear steel pipe crossbeam 11 are connected to form a symmetrical large frame structure.

[0029] like Figure 4 As shown, there are two first lifting cylinder supports 10, which are coaxially welded to both ends of the first rear steel tube crossbeam 11. The two first lifting cylinder supports 10 extend from the left longitudinal beam 1 and the right longitudinal beam 2, respectively. Specifically, the left longitudinal beam 1 is located between one first lifting cylinder support 10 and the first rear steel tube crossbeam 11, and the right longitudinal beam 2 is located between the other first lifting cylinder support 10 and the first rear steel tube crossbeam 11. The first lifting cylinder supports 10 are used to connect the lifting cylinder of the wrecker vehicle.

[0030] Two reinforcing steel pipe supports 13 are provided, with their two ends welded to the second rear steel pipe crossbeam 12 and the third rear steel pipe crossbeam 14, respectively. The function of the reinforcing steel pipe supports 13 is to enhance the rigidity between the second rear steel pipe crossbeam 12 and the third rear steel pipe crossbeam 14.

[0031] Two first mounting pins 3 are provided, passing through the front end of the left longitudinal beam 1 and the front end of the right longitudinal beam 2, respectively. The two first mounting pins 3 are coaxially located above the front square crossbeam 9, and are symmetrically arranged on the frame structure. The first mounting pins 3 are used to movably connect the auxiliary frame 100 and the working mechanism 102. One end of the working mechanism 102 is located between the left longitudinal beam 1 and the right longitudinal beam 2. One first mounting pin 3 passes through both the mounting hole on the left longitudinal beam 1 and the mounting hole on the left side plate of the working mechanism 102, and is then locked to the pin hole seat on the outer side of the left longitudinal beam 1 by a high-strength bolt to prevent it from falling off. The other first mounting pin 3 passes through both the mounting hole on the right longitudinal beam 2 and the mounting hole on the right side plate of the working mechanism 102, and is then locked to the pin hole seat on the outer side of the right longitudinal beam 2 by a high-strength bolt. Thus, the working mechanism 102 can rotate relative to the auxiliary frame 100 about the first mounting pin 3 as its central axis.

[0032] Two first anti-sway seats 6 are provided, and the two first anti-sway seats 6 are symmetrically welded to the rear end of the left longitudinal beam 1 and the rear end of the right longitudinal beam 2, respectively. The first anti-sway seats 6 are box-shaped rod structures. The lower ends of the two first anti-sway seats 6 are symmetrically welded to the left longitudinal beam 1 and the right longitudinal beam 2, respectively, and the upper ends of the first anti-sway seats 6 extend upward beyond the top of the left longitudinal beam 1 and the right longitudinal beam 2. The middle part of the working mechanism 102 is located between the two first anti-sway seats 6. The first anti-sway seats 6 prevent the working mechanism 102 from swinging left and right relative to the auxiliary frame 100 when the clearing vehicle is working.

[0033] Two second mounting pins 7 are provided, each passing through a pin hole at the rear end of the left longitudinal beam 1 and a pin hole at the rear end of the right longitudinal beam 2, respectively. The two second mounting pins 7 are coaxially and symmetrically arranged on the frame structure, located below the two first anti-sway seats 6. The second mounting pins 7 are used to movably connect the auxiliary frame 100 and the frame 101 of the recovery vehicle. The auxiliary frame 100 is located above the frame 101. One second mounting pin 7 passes through both the left longitudinal beam 1 and the support hole at the rear end of the left longitudinal beam of the frame 101, and is then locked to the pin hole seat on the outer side of the left longitudinal beam 1 by a high-strength bolt. The other second mounting pin 7 passes through both the right longitudinal beam 2 and the support hole at the rear end of the right longitudinal beam of the frame 101, and is then locked to the pin hole seat on the outer side of the right longitudinal beam 2 by a high-strength bolt, allowing the auxiliary frame 100 to rotate relative to the frame 101 about the second mounting pin 7 as its central axis.

[0034] Two second anti-sway seats 8 are provided, and the two second anti-sway seats 8 are symmetrically welded to the bottom of the front end of the left longitudinal beam 1 and the front end of the right longitudinal beam 2, respectively. The second anti-sway seat 8 includes two parallel spaced clamping plates. The frame 101 has two symmetrically arranged longitudinal beams. The lower planes of the left longitudinal beam 1 and the right longitudinal beam 2 rest on these two longitudinal beams, respectively. When the auxiliary frame 100 is supported and connected to the frame 101, each longitudinal beam is located between the two clamping plates of one second anti-sway seat 8. The second anti-sway seats 8 prevent the auxiliary frame 100 from swaying left and right relative to the frame 101 when the clearing vehicle is working.

[0035] There are two tie rod seats 4. The two tie rod seats 4 are symmetrically welded to the front outer side of the left longitudinal beam 1 and the right longitudinal beam 2 respectively. The side of the left longitudinal beam 1 facing the right longitudinal beam 2 is the inner side, and the side opposite to the inner side is the outer side. Similarly, the side of the right longitudinal beam 2 facing the left longitudinal beam 1 is the inner side, and the side opposite to the inner side is the outer side.

[0036] Two tie rods 5 are provided, each connected to a tie rod seat 4. When the auxiliary frame 100 is supported and connected to the frame 101, the upper end of the tie rod 5 is fixedly connected to the tie rod seat 4 by a high-strength large nut, and the lower end is movably connected to a support on the frame 101. Specifically, supports are symmetrically provided on the outer sides of the two longitudinal beams of the frame 101, and the lower end of the tie rod 5 is movably connected to these supports. The connection of the tie rods 5 prevents the auxiliary frame 100 from moving up and down relative to the wrecker frame 101 during the operation of the wrecker.

[0037] Two positioning seats 15 are provided, and the two positioning seats 15 are welded to the third rear steel pipe crossbeam 14. The function of the positioning seats 15 is to provide positioning support for the support rod structure 1021 (see description below) on the working mechanism 102 of the clearing vehicle. The top surface of the positioning seat 15 is concave to facilitate the positioning of the support rod structure 1021.

[0038] The working mechanism 102 has an L-shaped structure. A second lifting cylinder support 1022 is installed on each of the two outer sides of the L-shaped transition point of the working mechanism 102. The second lifting cylinder support 1022 is used to connect the lifting cylinder, such as... Figure 5 As shown.

[0039] The wrecker truck has two lifting cylinders, located on opposite sides of the auxiliary frame 100. One end of each lifting cylinder is mounted on a first lifting cylinder support 10, and the other end is connected to a second lifting cylinder support 1022. The lifting cylinders can drive the working mechanism 102 to rotate relative to the auxiliary frame 100.

[0040] In this embodiment, the lifting cylinder is a hydraulic cylinder.

[0041] In this embodiment, the steel plates used for the left longitudinal beam 1 and right longitudinal beam 2 are both carbon structural steel plates with low-temperature toughness requirements. The first lifting cylinder support 10 is forged from low-alloy high-strength structural steel with low-temperature toughness requirements. The steel plate used for the front square crossbeam 9 is a carbon structural steel plate with low-temperature toughness requirements. The first rear steel pipe crossbeam 11, the second rear steel pipe crossbeam 12, the reinforcing steel pipe support 13, and the third rear steel pipe crossbeam 14 are all seamless steel pipes with low-temperature toughness requirements. The tie rod seat 4, tie rod 5, first anti-sway seat 6, second anti-sway seat 8, and positioning seat 15 are all made of carbon structural steel plates with low-temperature toughness requirements. The first mounting pin 3 and the second mounting pin 7 are made of low-alloy high-strength round steel with low-temperature toughness requirements, which are heat-treated and then surface hardened.

[0042] The inner side (concave side) of the L-shaped transition of the working mechanism 102 faces the auxiliary frame 100, such as... Figure 1 and 2As shown. One end of the working mechanism 102 is hinged to the front end of the auxiliary frame 100 via the first mounting pin 3, the middle part is located between the two first anti-sway seats 6, and the other end can be connected to the bumper on the disabled vehicle. At the same time, the middle part of the working mechanism 102 is supported on the positioning seat 15 by the strut structure 1021. Between the first mounting pin 3 and the first anti-sway seat 6, from the first mounting pin 3 toward the first anti-sway seat 6, the working mechanism 102 is inclined upward, and after passing between the two first anti-sway seats 6, the working mechanism 102 is inclined downward, forming an L-shaped structure.

[0043] A strut structure 1021 is mounted on the side of the working mechanism 102 facing the auxiliary frame 100 at the L-shaped transition point. The strut structure 1021 is trapezoidal in shape and includes two spaced-apart long struts and two spaced-apart short struts, with the two short struts fixedly connected to the two long struts. The long and short struts of the strut structure 1021 are connected to each other, and the included angle between the long and short struts is acute. The length of the long strut is greater than the length of the short strut. The short strut is closer to the first mounting pin 3 than the long strut. One end of the strut structure 1021 is hinged to the working mechanism 102, allowing the strut structure 1021 to rotate relative to the working mechanism 102, with the rotation axis parallel to the first mounting pin 3. A small hydraulic cylinder is mounted on the working mechanism 102 to drive the strut structure 1021 to rotate relative to the working mechanism 102. The distance between the two long struts and the distance between the two short struts of the strut structure 1021 are equal to the distance between the two bases 15. When the strut structure 1021 is supported on the base 15, the bottom of the two long struts or the bottom of the two short struts of the strut structure 1021 is supported on the base 15. The two long struts and the two short struts on the strut structure 1021 cannot be supported on the base 15 at the same time.

[0044] Based on the above structure, when the lifting cylinder of the wrecker is not lifted, the two short support rods of the support rod structure 1021 rest on the mounting seat 15 of the auxiliary frame 100. At this time, the short support rods are located between the first mounting pin 3 and the two long support rods, as shown below. Figure 7 As shown.

[0045] When the lifting cylinder of the tow truck drives the working mechanism 102 to lift, under the action of the small hydraulic cylinder on the working mechanism 102, the support rod structure 1021 rotates relative to the working mechanism 102. This means the short support rod moves away from the positioning seat 15 towards the first mounting pin 3, while the long support rod moves closer to the positioning seat 15. When the working mechanism 102 is lifted to a set distance, the two long support rods of the support rod structure 1021 respectively land on the two positioning seats 15, thus achieving support of the working mechanism 102 by the support rod structure 1021. Figure 6 As shown.

[0046] Both of the two positioning states of the strut structure 1021 serve the same purpose: to transfer the force on the lifting cylinder to the strut structure 1021.

[0047] The auxiliary frame 100 is also equipped with a reinforcing plate 50 and a reinforcing curved plate 51 for reinforcement. Specifically, as shown... Figure 3 and 4 As shown, the thickness of the portion of the left longitudinal beam 1 connecting the first rear steel pipe crossbeam 11, the second rear steel pipe crossbeam 12, and the third rear steel pipe crossbeam 14 is less than the thickness of the other portions. A reinforcing plate 50 and a reinforcing bent plate 51 are welded at the transition between these two portions. Similarly, the thickness of the portion of the right longitudinal beam 2 connecting the first rear steel pipe crossbeam 11, the second rear steel pipe crossbeam 12, and the third rear steel pipe crossbeam 14 is less than the thickness of the other portions. A reinforcing plate 50 and a reinforcing bent plate 51 are welded at the transition between these two portions. The function of the reinforcing plate 50 and the reinforcing bent plate 51 is to increase the stiffness of the rear ends of the left longitudinal beam 1 and the right longitudinal beam 2.

[0048] In this embodiment, the reinforcing plate 50 and the reinforcing bent plate 51 are welded to the left longitudinal beam 1 and the right longitudinal beam 2. The reinforcing plate 50 is flat, and the reinforcing bent plate 51 is U-shaped, running around the edge of the thinner portion of the left longitudinal beam 1 and the right longitudinal beam 2.

[0049] Based on the above structure, the working principle and process of this invention are as follows: When the tow truck is not towing the disabled vehicle, the lifting cylinder is not lifted, and the two short support rods in the support rod structure 1021 on the working mechanism 102 respectively rest on the two landing seats 15 of the auxiliary frame 100, as follows: Figure 7As shown, the two long struts of the working mechanism 102 and the strut structure 1021 are inclined. When the tow truck tows the disabled vehicle, the tow truck's lifting cylinder lifts, causing the working mechanism 102 to rotate and rise around the first mounting pin 3. The jaws on the rear end of the working mechanism 102 engage the front bumper of the disabled vehicle's frame, thereby lifting the front bumper and raising the front wheels of the disabled vehicle about 200mm off the ground. The tow truck then uses its traction power to tow the disabled vehicle. Before the tow truck lifts the front bumper of the disabled vehicle's frame, the tow truck's lifting cylinder drives the working mechanism 102 to lift. The small hydraulic cylinder on the working mechanism 102 drives the strut structure 1021 to rotate so that the two long struts are respectively positioned on the two mounting seats 15 on the auxiliary frame. After the tow truck completes towing the disabled vehicle, firstly, the tow truck's lifting cylinder maintains support to support the weight of the disabled vehicle. Then, the small hydraulic cylinder drives the strut structure 1021 to rotate until the long strut disengages from the landing seat 15, so as not to interfere with the descent of the subsequent working mechanism 102. Finally, the lifting cylinder of the tow truck descends, driving the working mechanism 102 down until the disabled vehicle lands. After the front wheels land, the clamps on the rear end of the working mechanism 102 are manually released from their restraint on the front bumper of the disabled vehicle frame. After the tow truck starts moving away from the disabled vehicle, the lifting cylinder of the tow truck descends to the set distance. Under the action of the small hydraulic cylinder on the working mechanism 102, the two short struts of the strut structure 1021 are respectively repositioned onto the two landing seats 15 on the auxiliary frame, as shown. Figure 7 As shown.

[0050] Finally, it is necessary to state that the above embodiments are only used to further illustrate the technical solution of the present invention in detail, and should not be construed as limiting the scope of protection of the present invention. Any non-essential improvements and adjustments made by those skilled in the art based on the above content of the present invention shall fall within the scope of protection of the present invention.

Claims

1. An auxiliary frame for a mining clearing vehicle, characterized in that, The working mechanism (102), the auxiliary frame (100), and the frame (101) of the clearing vehicle are connected in sequence. The working mechanism (102) is used to connect the auxiliary frame (100) and the disabled vehicle. One end of the working mechanism (102) and the auxiliary frame (100) are rotatably connected together. The middle part of the working mechanism (102) and the auxiliary frame (100) are connected through a lifting cylinder. The other end of the working mechanism (102) is used to connect the disabled vehicle.

2. The auxiliary frame according to claim 1, characterized in that: The auxiliary frame (100) includes a left longitudinal beam (1), a right longitudinal beam (2), a first mounting pin (3), and a second mounting pin (7). The left longitudinal beam (1) and the right longitudinal beam (2) are arranged symmetrically at intervals and connected together. One end of the working mechanism (102) is inserted at an angle downward between the front end of the left longitudinal beam (1) and the front end of the right longitudinal beam (2). The left longitudinal beam (1) and the working mechanism (102) and the right longitudinal beam (2) and the working mechanism (102) are each connected together by a first mounting pin (3). The auxiliary frame (100) is supported on the frame (101). The rear end of the left longitudinal beam (1) and the frame (101) and the rear end of the right longitudinal beam (2) and the frame (101) are each connected together by a second mounting pin (7).

3. The auxiliary frame according to claim 2, characterized in that: The auxiliary frame (100) also includes a front square crossbeam (9), a first rear steel tube crossbeam (11), a second rear steel tube crossbeam (12), and a third rear steel tube crossbeam (14). The front square crossbeam (9), the second rear steel tube crossbeam (12), the third rear steel tube crossbeam (14), and the first rear steel tube crossbeam (11) are all located between the left longitudinal beam (1) and the right longitudinal beam (2). The front square crossbeam (9) is located at the front end of the auxiliary frame (100). The second rear steel tube crossbeam (12), the third rear steel tube crossbeam (14), the first rear steel tube crossbeam (11), the second rear steel tube crossbeam (12), the third rear steel tube crossbeam (14), and the third rear steel tube crossbeam (15) are all located between the left longitudinal beam (1) and the right longitudinal beam (2). The three rear steel pipe crossbeams (14) and the first rear steel pipe crossbeam (11) are located at the rear end of the auxiliary frame (100). The two ends of the front square crossbeam (9), the two ends of the second rear steel pipe crossbeam (12), the two ends of the third rear steel pipe crossbeam (14) and the two ends of the first rear steel pipe crossbeam (11) are respectively connected to the left longitudinal beam (1) and the right longitudinal beam (2). The third rear steel pipe crossbeam (14), the second rear steel pipe crossbeam (12) and the first rear steel pipe crossbeam (11) are arranged from top to bottom.

4. The auxiliary frame according to claim 2 or 3, characterized in that: The auxiliary frame (100) also includes two tie rods (5), with the front end of the left longitudinal beam (1) connected to the frame (101) via one tie rod (5), and the front end of the right longitudinal beam (2) connected to the frame (101) via another tie rod (5).

5. The auxiliary frame according to claim 4, characterized in that: The auxiliary frame (100) also includes two second anti-sway seats (8), which are respectively connected to the bottom front end of the left longitudinal beam (1) and the bottom front end of the right longitudinal beam (2). The second anti-sway seat (8) includes two parallel spaced plates. The frame (101) has two parallel longitudinal beams. The lower planes of the left longitudinal beam (1) and the right longitudinal beam (2) are respectively located on the two longitudinal beams. When the auxiliary frame (100) is supported and connected to the frame (101), each longitudinal beam of the frame (101) is located between the two plates of a second anti-sway seat (8).

6. The auxiliary frame according to claim 2 or 3, characterized in that: The auxiliary frame (100) also includes two first anti-sway seats (6), which are respectively connected to the rear end of the left longitudinal beam (1) and the rear end of the right longitudinal beam (2). The lower end of the first anti-sway seat (6) is connected to the left longitudinal beam (1) or the right longitudinal beam (2), and the upper end of the first anti-sway seat (6) extends upward beyond the top of the left longitudinal beam (1) and the right longitudinal beam (2). The middle part of the working mechanism (102) is located between the two first anti-sway seats (6).

7. The auxiliary frame according to claim 6, characterized in that: Starting from the first mounting pin (3), the working mechanism (102) extends upward at an angle to the space between the two first anti-sway seats (6), and then extends downward at an angle after passing between the two first anti-sway seats (6), forming an L-shaped structure.

8. The auxiliary frame according to claim 7, characterized in that: A strut structure (1021) is installed on the side of the working mechanism (102) facing the auxiliary frame (100) at the L-shaped transition point. The strut structure (1021) can rotate relative to the working mechanism (102), and the struts on the strut structure (1021) can be supported on two landing seats (15) on the auxiliary frame (100).

9. The auxiliary frame according to claim 8, characterized in that: The strut structure (1021) includes two long struts arranged at intervals and two short struts arranged at intervals. The two short struts are fixedly connected to the two long struts respectively. The included angle between the long struts and the short struts is an acute angle. The length of the long struts is greater than the length of the short struts. The short struts are closer to the first mounting pin (3) than the long struts. The distance between the two long struts and the distance between the two short struts on the strut structure (1021) are equal to the distance between the two landing seats (15). When the strut structure (1021) is supported on the landing seat (15), the bottom of the two long struts or the bottom of the two short struts of the strut structure (1021) are supported on the landing seat (15). The two long struts and the two short struts on the strut structure (1021) cannot be supported on the landing seat (15) at the same time.

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