Mine car cab supporting structure

Abstract

The utility model relates to the technical field of cab supporting, in particular to a mine car cab supporting structure which comprises a frame assembly, a cab body is arranged at one end of the top face of the frame assembly, and the bottom face of the cab body is fixedly connected with a concentric-square-shaped frame fixed to the top face of the frame assembly. A loading hopper is fixed to the other end of the top face of the frame assembly, a supporting mechanism is arranged between the frame assembly and the cab body and comprises a lifting assembly, and a switching assembly is arranged in the lifting assembly. According to the device, the two threaded rods can extend out through rotation of the two threaded sleeves, the extending threaded rods can jack up the cab body, and under the matched use of the switching assembly, the device can be used under the condition that a hydraulic system of a vehicle is damaged and can be used together with the hydraulic system of the vehicle; therefore, the hydraulic system is prevented from being damaged suddenly, and danger to maintenance personnel can be avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of cab support, in particular to a mine car cab support structure. Background Art

[0002] The mine car cab is an important component of a mining truck. It provides a platform for operators to control and operate the mine car. Since mining dump trucks often travel on bumpy and harsh roads, the mine car will be subject to frequent vibrations, which will cause the control system in the mine car to be frequently damaged. Therefore, the mine car needs to have its cab jacked up during maintenance.

[0003] At present, a hydraulic cylinder support structure is usually used to realize the flipping of the cab, but it may cause oil leakage due to aging of the pipeline or loose joints, which will make it unable to fully support the weight of the cab, causing it to automatically fall after flipping up and causing harm to the maintenance personnel below. Although there is currently a separate support device that can be used in conjunction with the hydraulic cylinder, it is first necessary to use the hydraulic cylinder to lift the cab, and then use the support device to support the cab. If the hydraulic cylinder has oil leakage and is outdoors, the cab cannot be lifted up, so the staff cannot repair the mine car. Utility Model Content

[0004] The utility model aims to provide a mine car cab support structure to solve the problems raised in the above background technology.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A mine car cab support structure comprises a frame assembly, a cab body is provided at one end of the top surface of the frame assembly, a circular frame fixed to the top surface of the frame assembly is fixedly connected to the bottom surface of the cab body, a charging hopper is fixed to the other end of the top surface of the frame assembly, a support mechanism is provided between the frame assembly and the cab body, the support mechanism comprises a lifting component, a switching component is provided in the lifting component, the lifting component comprises two symmetrical threaded sleeves, a fixed block is fixedly connected to the bottom surface of the cab body at a position corresponding to the threaded sleeve, a screw is screwed in the interior of the threaded sleeve, and a rotating block fixed to the screw at the corresponding position is provided in the interior of the fixed block.

[0007] Furthermore, the frame assembly and one of the cross beams at the bottom of the cab body have spherical grooves at both ends of the top surface, the frame assembly is fixedly connected to support plates on both sides, the bottom end of the threaded sleeve is fixedly connected to a sphere that is movably engaged with the spherical groove at the corresponding position, the outer wall of the sphere and the threaded sleeve at the corresponding position are symmetrically fixed with a connecting shaft, the outer wall of the connecting shaft is fixedly connected to a bevel gear 1, a round rod is rotatably connected between the two support plates, and the outer walls of the round rod are fixedly connected to bevel gear 2 that meshes with bevel gear 1 at the corresponding position.

[0008] Furthermore, both ends of the outer wall of the round rod are rotatably connected with L-shaped plates that rotate with the outer wall of the connecting shaft at corresponding positions, and both ends of the round rod are fixedly connected with crank handles.

[0009] Preferably, an arc-shaped hole for the round rod to slide through is formed through one side surface of the support plate.

[0010] Furthermore, the switching assembly includes two symmetrical insertion rods that respectively penetrate the fixed block and the rotating block at corresponding positions, the opposite ends of the two insertion rods are fixedly connected to a connecting block that is slidably connected to the bottom surface of the cab body, a spring is fixed between the fixed block and the connecting block at the corresponding position and on the outside of the insertion rod at the corresponding position, a rotating rod is rotatably connected to the bottom surface of the cab body and located between the two connecting blocks, and an elliptical block in contact with the two connecting blocks is fixedly connected to the outer wall of the rotating rod.

[0011] Furthermore, bevel gear three is fixedly connected to the bottom end of the rotating rod, a rotating shaft passes through a side of the circular frame close to the loading hopper, one end of the rotating shaft located in the circular frame is fixedly connected to a bevel gear four meshing with bevel gear three, an outer side surface of the circular frame is fixedly connected to a fixed ring, a rotating ring one is rotatably connected to the outer wall of the fixed ring, a movable ring is slidably connected to the outer wall of the rotating shaft located outside the circular frame, a side surface of the movable ring opposite to the fixed ring is fixed with a plurality of latch teeth at equal angles, a rotating ring two is fixedly connected to the outer wall of the movable ring, and a plurality of springs two are fixed at equal angles in a ring between the rotating ring two and the rotating ring one.

[0012] Furthermore, two symmetrical limit bars are fixedly connected to the outer wall of the rotating shaft outside the circular frame, and two symmetrical limit grooves are opened on the inner wall of the movable ring and slide with the limit bars at corresponding positions, and one end of the rotating shaft outside the circular frame is fixedly connected to a limit block.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] The device can extend two screw rods by rotating two threaded sleeves, and the extended screw rods can lift up the cab body. In conjunction with the switching assembly, the device can be used when the vehicle's hydraulic system is damaged, and can be used simultaneously with the vehicle's hydraulic system to prevent sudden damage to the hydraulic system, thereby avoiding danger to maintenance personnel. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 It is a schematic diagram of the support mechanism structure in the utility model;

[0017] Figure 3 It is a schematic diagram of the structure of the lifting component in the utility model;

[0018] Figure 4 It is a schematic diagram of the structure of the switching component in the utility model.

[0019] In the figure: 1. frame assembly; 2. cab body; 3. loading hopper; 4. supporting mechanism; 41. lifting assembly; 411. threaded sleeve; 412. fixed block; 413. sphere; 414. bevel gear one; 415. supporting plate; 416. round rod; 417. bevel gear two; 418. L-shaped plate; 419. crank; 42. switching assembly; 421. plug rod; 422. connecting block; 423. spring one; 424. elliptical block; 4241. bevel gear three; 425. bevel gear four; 4251. limit block; 426. fixed ring; 427. rotating ring one; 428. moving ring; 429. rotating ring two; 4291. spring two. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] See also Figures 1 to 4In an embodiment of the utility model, a mine car cab support structure includes a frame assembly 1, a cab body 2 is provided at one end of the top surface of the frame assembly 1, a circular frame fixed to the top surface of the frame assembly 1 is fixedly connected to the bottom surface of the cab body 2, a charging hopper 3 is fixed to the other end of the top surface of the frame assembly 1, a support mechanism 4 is provided between the frame assembly 1 and the cab body 2, the support mechanism 4 includes a lifting component 41, a switching component 42 is provided in the lifting component 41, the lifting component 41 includes two symmetrical threaded sleeves 411, a fixing block 412 is fixedly connected to the bottom surface of the cab body 2 corresponding to the threaded sleeve 411, a screw is screwed in the interior of the threaded sleeve 411, and a rotating block fixed to the screw at the corresponding position is provided in the interior of the fixing block 412.

[0022] Specifically, when the vehicle is damaged outdoors and needs to be repaired, the switching assembly 42 is first separated from the lifting assembly 41, and the cab body 2 is then separated from the lifting assembly 41. Then, the vehicle's own hydraulic system is used to lift the cab body 2. In order to prevent the hydraulic system from being damaged during use, the two threaded sleeves 411 are rotated, and the maintenance personnel hold the screw rod with one hand, so that the screw rods at the corresponding positions can be extended until the two screw rods are extended to a certain length, and the rotating block fixed at the top of the screw rod contacts the bottom surface of the cab body 2. At this time, the cab body 2 can be double-supported. Then the driver can inspect and repair some lines and equipment in the vehicle. When the hydraulic system of the vehicle leaks oil, At this time, the hydraulic system does not wait to lift the cab body 2, and can connect the switching assembly 42 with the lifting assembly 41. At this time, the cab body 2 is connected to the lifting assembly 41, and then the two threaded sleeves 41 are rotated to extend the screws at the corresponding positions. The two extended screws can rotate the cab body 2 along the rotation point with the frame assembly 1, so that the cab body 2 can be lifted close to the loading hopper 3. The device can be used simultaneously with the hydraulic system of the vehicle to prevent sudden damage to the hydraulic system, thereby avoiding danger to maintenance personnel. In addition, in the event that the hydraulic system of the vehicle is damaged, the cab body 2 can be lifted up by screwing the screws and the threaded sleeves 411 at the corresponding positions.

[0023] Embodiment 1

[0024] like Figure 2 and Figure 3As shown, in this embodiment, both ends of the top surface of one of the cross beams of the frame assembly 1 and located at the bottom of the cab body 2 are penetrated with spherical grooves, both sides of the frame assembly 1 are fixedly connected with support plates 415, the bottom end of the threaded sleeve 411 is fixedly connected with a sphere 413 movably engaged with the spherical groove at the corresponding position, the outer wall of the sphere 413 and the threaded sleeve 411 at the corresponding position are symmetrically fixed with a connecting shaft, the outer wall of the connecting shaft is fixedly connected with a bevel gear 1 414, a round rod 416 is rotatably connected between the two support plates 415, both ends of the outer wall of the round rod 416 are fixedly connected with a bevel gear 2 417 meshing with the bevel gear 1 414 at the corresponding position, both ends of the outer wall of the round rod 416 are rotatably connected with an L-shaped plate 418 rotating with the outer wall of the connecting shaft at the corresponding position, both ends of the outer wall of the round rod 416 are fixedly connected with a crank handle 419, and one side of the support plate 415 is penetrated with an arc hole for the round rod 416 to slide through.

[0025] In this embodiment, the rotation of the crank handle 419 can make the round rod 416 drive the two bevel gears 417 to rotate, and the rotating bevel gear 417 can make the bevel gear 414 at the corresponding position rotate, and the rotating bevel gear 414 can make the ball 413 drive the threaded sleeve 411 to rotate. Since the rotating block is restricted by the fixed block 412, the rotation of the threaded sleeve 411 can make the screw at the corresponding position extend, thereby lifting the cab body 2.

[0026] Embodiment 2

[0027] like Figure 2 and Figure 4As shown, in the present embodiment, the switching assembly 42 comprises two symmetrical plug rods 421 respectively penetrating the fixed block 412 and the rotating block at the corresponding positions, the opposite ends of the two plug rods 421 are fixedly connected with a connecting block 422 slidably connected with the bottom surface of the cab body 2, a spring 423 is fixed between the fixed block 412 and the connecting block 422 at the corresponding position and on the outside of the plug rod 421 at the corresponding position, a rotating rod is rotatably connected with the bottom surface of the cab body 2 and located between the two connecting blocks 422, an elliptical block 424 in contact with the two connecting blocks 422 is fixedly connected to the outer wall of the rotating rod, a bevel gear 3 4241 is fixedly connected to the bottom end of the rotating rod, a rotating shaft is rotatably penetrated through one side of the circular frame close to the loading hopper 3, and one end of the rotating shaft located in the circular frame is fixedly connected with the bevel gear 3 Bevel gear four 425 meshing with 4241, a fixed ring 426 is fixedly connected to an outer side surface of the circular frame, a rotating ring one 427 is rotatably connected to the outer wall of the fixed ring 426, a moving ring 428 is slidably connected to the outer wall of the rotating shaft located outside the circular frame, a plurality of latch teeth are fixed at equal angles in an annular manner on the side opposite to the fixed ring 426, a rotating ring two 429 is fixedly connected to the outer wall of the moving ring 428, a plurality of springs two 4291 are fixed at equal angles in an annular manner between the rotating ring two 429 and the rotating ring one 427, two symmetrical limit strips are fixedly connected to the outer wall of the rotating shaft located outside the circular frame, two symmetrical limit grooves are provided on the inner wall of the moving ring 428 which slide with the limit strips at corresponding positions, and a limiting block 4251 is fixedly connected to one end of the rotating shaft located outside the circular frame.

[0028] In this embodiment, by moving the movable ring 428, the latching teeth on the movable ring 428 are disengaged from the latching teeth on the fixed ring 426, and then rotating the movable ring 428 can rotate the rotating shaft, and the rotating rotating shaft can make the bevel gear four 425 drive the bevel gear three 4241 to rotate, and the rotating bevel gear three 4241 can make the elliptical block 424 rotate, and the rotating elliptical block 424 can make the two insertion rods 421 move away from each other until the insertion rod 421 is inserted between the fixed block 412 and the rotating block at the corresponding position. At this time, the rotating block is connected to the fixed block 412 at the corresponding position, which can prevent the rotating block from sliding on the bottom surface of the cab body 2 during the lifting process of the cab body 2, and then the two screws can be extended by rotating the crank handle 419, so that the cab body 2 can be lifted up.

[0029] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

[0030] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A mine car cab support structure, comprising a frame assembly (1), a cab body (2) is arranged at one end of the top surface of the frame assembly (1), a circular frame fixed to the top surface of the frame assembly (1) is fixedly connected to the bottom surface of the cab body (2), a charging hopper (3) is fixed to the other end of the top surface of the frame assembly (1), a support mechanism (4) is arranged between the frame assembly (1) and the cab body (2), and is characterized in that: The support mechanism (4) comprises a lifting assembly (41), a switching assembly (42) is arranged inside the lifting assembly (41), the lifting assembly (41) comprises two symmetrical threaded sleeves (411), a fixing block (412) is fixedly connected to the bottom surface of the cab body (2) corresponding to the threaded sleeve (411), a screw is screwed inside the threaded sleeve (411), and a rotating block fixed to the screw at a corresponding position is arranged inside the fixing block (412).

2. A mine car cab support structure according to claim 1, characterized in that: The frame assembly (1) has a spherical groove on both ends of the top surface of one of the cross beams located at the bottom of the cab body (2). Support plates (415) are fixedly connected to both sides of the frame assembly (1). The bottom end of the threaded sleeve (411) is fixedly connected to a sphere (413) that is movably engaged with the spherical groove at a corresponding position. The outer wall of the sphere (413) and the threaded sleeve (411) at the corresponding position are symmetrically fixed with a connecting shaft. The outer wall of the connecting shaft is fixedly connected to a bevel gear 1 (414). A round rod (416) is rotatably connected between the two support plates (415). The outer walls of the round rod (416) are fixedly connected to bevel gear 2 (417) that meshes with bevel gear 1 (414) at the corresponding position.

3. A mine car cab support structure according to claim 2, characterized in that: Both ends of the outer wall of the round rod (416) are rotatably connected to an L-shaped plate (418) that rotates with the outer wall of the connecting shaft at a corresponding position, and both ends of the round rod (416) are fixedly connected to a crank handle (419).

4. A mine car cab support structure according to claim 3, characterized in that: An arc-shaped hole for the round rod (416) to slide through is formed through one side surface of the support plate (415).

5. A mine car cab support structure according to claim 1, characterized in that: The switching assembly (42) comprises two symmetrical insertion rods (421) respectively penetrating the fixed block (412) and the rotating block at corresponding positions; opposite ends of the two insertion rods (421) are fixedly connected with a connecting block (422) slidably connected with the bottom surface of the cab body (2); a spring (423) is fixed between the fixed block (412) and the connecting block (422) at the corresponding position and outside the insertion rod (421) at the corresponding position; a rotating rod is rotatably connected to the bottom surface of the cab body (2) and located between the two connecting blocks (422); an elliptical block (424) in contact with the two connecting blocks (422) is fixedly connected to the outer wall of the rotating rod.

6. A mine car cab support structure according to claim 5, characterized in that: The bottom end of the rotating rod is fixedly connected with a bevel gear three (4241), a rotating shaft is rotatably passed through a side surface of the circular frame close to the loading hopper (3), one end of the rotating shaft located in the circular frame is fixedly connected with a bevel gear four (425) meshing with the bevel gear three (4241), an outer side surface of the circular frame is fixedly connected with a fixed ring (426), the outer wall of the fixed ring (426) is rotatably connected with a rotating ring one (427), the outer wall of the rotating shaft located outside the circular frame is slidably connected with a moving ring (428), a side surface of the moving ring (428) opposite to the fixed ring (426) is annularly fixed with a plurality of latching teeth at equal angles, the outer wall of the moving ring (428) is fixedly connected with a rotating ring two (429), and a plurality of springs two (4291) are annularly fixed with equal angles between the rotating ring two (429) and the rotating ring one (427).

7. A mine car cab support structure according to claim 6, characterized in that: The outer wall of the rotating shaft outside the circular frame is fixedly connected to two symmetrical limit bars, the inner wall of the movable ring (428) is provided with two symmetrical limit grooves that slide with the limit bars at corresponding positions, and one end of the rotating shaft outside the circular frame is fixedly connected to a limit block (4251).

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