Compact type loader cab rollover system, cab and loader

Abstract

The utility model discloses a compact type loader cab rollover system, a cab and a loader. The compact type loader cab rollover system comprises a frame, the cab base is mounted above the frame; the rollover assembly comprises a front rollover support, a rear rollover support and an air spring, the front rollover support and the rear rollover support are respectively connected with the frame and are respectively connected with the cab base through pin shafts, one end of the air spring is connected with the rear rollover support, and the other end of the air spring is connected with the cab base; the damping assembly is mounted between the cab base and the frame and comprises a plurality of silicone oil dampers; and the rollover supporting rod is mounted between the cab base and the frame and is used for fixing and supporting the cab during rollover. The cab rollover system of the compact type loader is suitable for the compact type loader, the maintainability of the compact type loader is improved, the product maintainability is optimized, the structure is simplified, the research and development cost is reduced, the cushioning capacity of the cab is improved, and the driving comfort is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a compact loader cab rollover system, cab and loader belong to engineering machinery technical field. BACKGROUND

[0002] The compact loader is a kind of loader in municipal engineering and agricultural field, and its overall size is small, weight is light, structure is compact, and it can enter and exit more narrow work environment.Due to its compact structure, the overall height is small, the space at the bottom of cab is very narrow, and the difficulty of overall assembly, maintenance and debugging is very great.The cab rollover system of current loader is mostly welded assembly, and it is difficult to replace, interchangeability is poor, if it needs to be changed into non-rollover cab, cab and frame need to be replaced as a whole, and the design and manufacturing cost is high, and the existing rollover cab, due to the form of shock absorber on the rollover shaft side is mostly drum type, and the shock absorption performance is poor.In addition, the existing rollover support assembly needs to be inserted into the bottom of cab when rolling over, and it is dangerous, and after rollover, due to the deformation of shock absorber, it is easy to appear misplacement problem when returning. SUMMARY

[0003] In view of the problems existing in the prior art, the utility model provides a compact loader cab rollover system, cab and loader.

[0004] In order to realize the above purpose, the utility model adopts a compact loader cab rollover system, which comprises:

[0005] Frame;

[0006] Cab base, installed above the frame;

[0007] Rollover assembly, comprising front rollover support, rear rollover support and gas spring, the front rollover support and rear rollover support are connected with the frame respectively, and the front rollover support and rear rollover support are connected with the cab base through pin shaft respectively, one end of the gas spring is connected with the rear rollover support, and the other end is connected with the cab base;

[0008] Shock absorption assembly, installed between the cab base and the frame, comprising a plurality of silicon oil shock absorbers;

[0009] Rollover support rod, installed between the cab base and the frame, for fixing and supporting cab when rolling over.

[0010] In some embodiments, the bottom of the cab base is provided with a guide limiting structure for guiding and limiting when rolling back;

[0011] The guide limiting structure comprises an L-shaped plate installed at the bottom of the cab base, the L-shaped plate is connected with the rear rollover support, and a plurality of triangular weld blocks are welded at the bottom of the L-shaped plate.

[0012] In some embodiments, the L-shaped plate is provided with an L-shaped plate through hole, and the L-shaped plate through hole is connected with the rear side tipping support through a bolt.

[0013] In some embodiments, one end of the side tipping support rod is provided with a joint bearing, the joint bearing is connected with the vehicle frame through a bolt, and the other end of the side tipping support rod is provided with a circular clamping block.

[0014] In some embodiments, the bottom of the cab base is provided with a bending plate, and the bending plate is provided with an L-shaped slot matched with the circular clamping block.

[0015] In some embodiments, the rear side tipping support comprises a U-shaped support body, the support body is symmetrically provided with a support through hole, the support through hole is provided with a bolt connected with the vehicle frame, and the bolt is sleeved with the silicon oil shock absorber.

[0016] One side of the support body is provided with a threaded hole for connecting the cab base, and the other side is provided with a pin shaft mounting hole for mounting a rear support pin shaft, and the rear support pin shaft is connected with the cab base.

[0017] In some embodiments, the support body is provided with a gas spring mounting hole, one end of the gas spring is connected with the gas spring mounting hole through a bolt, and the other end is connected with the vehicle frame through a bolt.

[0018] The second aspect of the utility model further provides a cab, the cab comprises a cab cabin assembly, the compact loader cab rollover system, the cab cabin assembly is detachably installed on the cab base.

[0019] The third aspect of the utility model further provides a loader, the loader is provided with the cab, and the loader is a compact loader.

[0020] Compared with the prior art, the compact loader cab rollover system is suitable for the compact loader, improves the maintainability of the compact loader, optimizes the product maintenance, simplifies the structure, reduces the research and development cost, increases the cab cushioning capacity, and improves the driving comfort. BRIEF DESCRIPTION OF DRAWINGS

[0021] In order to more clearly illustrate the technical scheme in the embodiments of the present application or the prior art, the drawings needed in the embodiment or prior art description will be briefly introduced below, and obviously, the drawings in the following description can only be some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without creative labor.

[0022] Figure 1The utility model discloses a cab base and frame's connection structure schematic view;

[0023] Figure 2 The utility model discloses a cab base's structure schematic view;

[0024] Figure 3 The utility model discloses a cab cabin assembly and cab base's connection structure schematic view;

[0025] Figure 4 The utility model discloses a side -turning support rod's structure schematic view;

[0026] Figure 5 The utility model discloses a rear side -turning support's structure schematic view;

[0027] Figure 6 The utility model discloses a front side -turning support's structure schematic view;

[0028] Figure 7 The utility model discloses a cab base's bottom structure schematic view;

[0029] In the drawing: 1, cab base, 1-1, L-shaped plate, 1-2, L-shaped plate through -hole, 1-3, triangular weld block, 1-4, base mounting hole, 1-5, bending plate, 1-6, L-shaped slot, 2, side -turning support rod, 2-1, joint bearing, 2-2, round clamping block, 3, gas spring, 4, rear side -turning support, 4-1, support through -hole, 4-2, gas spring mounting hole, 4-3, screw hole, 4-4, pin shaft mounting hole, 5, front side -turning support, 5-1, front support pin shaft, 6, silicon oil shock absorber, 7, frame, 8, cab cabin assembly. DETAILED DESCRIPTION

[0030] In order to make the utility model's purpose, technical scheme and advantage more clear and obvious, the following through the drawing and concrete embodiment to the application technical scheme detailed explanation, should understand the application embodiment and the concrete feature in the embodiment is to the detailed explanation of the application technical scheme, and is not the limitation of the application technical scheme, and the application embodiment and the technical feature in the embodiment can be combined mutually in the non -conflict situation.

[0031] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances. In the description of this utility model, it should be understood that the terms "left," "right," "front," and "rear," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only used for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting the scope of protection of this utility model.

[0032] like Figures 1-7 As shown, a compact loader cab rollover system includes a frame 7, a cab base 1, a rollover assembly, a shock absorption assembly, and a rollover support rod 2;

[0033] The cab base 1 is mounted on top of the vehicle frame 7;

[0034] The rollover assembly includes a front rollover bracket 5, a rear rollover bracket 4, and a gas spring 3. The front rollover bracket 5 and the rear rollover bracket 4 are respectively connected to the vehicle frame 7, and are respectively connected to the cab base 1 via pins. One end of the gas spring 3 is connected to the rear rollover bracket 4, and the other end is connected to the cab base 1. The rollover assembly is used to connect the cab and the vehicle frame 7, and is equipped with a gas spring 3 to provide assistance for rollover.

[0035] The shock absorption assembly is installed between the cab base 1 and the vehicle frame 7, and includes multiple silicone oil shock absorbers 6. The shock absorption assembly provides good shock absorption capability.

[0036] The rollover support rod 2 is installed between the cab base 1 and the frame 7. After the cab rolls over, the rollover support rod 2 is used to fix and support the cab during the rollover to ensure safety. Compared with other rollover support mechanisms, it is not necessary to put one's body under the cab, which reduces safety risks.

[0037] In some embodiments, such as Figure 7 As shown, the bottom of the cab base 1 is provided with a guide limiting structure for guiding and limiting when the cab is rolled back to the side position;

[0038] The guide limiting structure includes an L-shaped plate 1-1 installed on the left rear side of the bottom of the cab base 1. The L-shaped plate 1-1 is connected to the rear tilt bracket 4. Multiple triangular welding blocks 1-3 are welded to the bottom of the L-shaped plate 1-1.

[0039] In some embodiments, as shown in Figure 7 The bottom of the L-shaped plate 1-1 is welded with three triangular welding blocks 1-3, which are arranged in a triangular shape and serve as a guide and a position limiter when the side turning is returned to the original position, so as to solve the problem of misalignment when the side turning is returned.

[0040] In some embodiments, as shown in Figure 7 An L-shaped plate through hole 1-2 is formed in the L-shaped plate 1-1, and the L-shaped plate through hole 1-2 is connected with the rear side turning support 4 by means of a bolt.

[0041] In some embodiments, as shown in Figure 7 A base mounting hole 1-4 is formed in the left front side of the bottom of the cab base 1, and the base mounting hole 1-4 is connected with the vehicle frame 7 by means of a bolt, and a silicon oil shock absorber 6 is mounted on the bolt, so as to enhance the shock absorbing performance and comfort of the cab.

[0042] In some embodiments, as shown in Figure 4 One end of the side turning support rod 2 is provided with a joint bearing 2-1, and the side turning support rod 2 can be freely turned at multiple angles, the joint bearing 2-1 is connected with the vehicle frame 7 by means of a bolt, the other end of the side turning support rod 2 is provided with a round clamping block 2-2, the left front side of the bottom of the cab base 1 is provided with a bent plate 1-5, and the bent plate 1-5 is provided with an L-shaped slot 1-6 matched with the round clamping block 2-2. After the cab is turned, the round clamping block 2-2 of the side turning support rod 2 is embedded into the L-shaped slot 1-6, and the side turning support rod 2 is used to fix and support the cab during the side turning, so as to ensure the safety during the side turning.

[0043] In some embodiments, as shown in Figure 5 The rear side turning support 4 comprises a support body in a U shape, the support body is symmetrically provided with a support through hole 4-1, the support through hole 4-1 is provided with a bolt connected with the vehicle frame 7, and the bolt is sleeved with the silicon oil shock absorber 6, so as to enhance the shock absorbing performance and comfort of the cab;

[0044] The left side of the support body is provided with a threaded hole 4-3 for connecting the cab base 1 (the threaded hole 4-3 corresponds to the L-shaped plate through hole 1-2), and the threaded hole 4-3 is provided with a bolt, and it should be noted that the bolt in the threaded hole 4-3 and the bolt in the base mounting hole 1-4 need to be disassembled when the cab is turned;

[0045] The right side of the support body is provided with a pin shaft mounting hole 4-4 for mounting a rear support pin shaft, and the rear support pin shaft is rotatably connected with the cab base 1, and similarly, the front side turning support 5 is provided with a front support pin shaft 5-1 for rotatably connecting with the cab base 1, as shown in Figure 6As shown, the side tipping assembly is connected with the cab base 1 through the front support pin shaft 5-1 and the rear support pin shaft, so that the cab base 1 can be turned at a certain angle relative to the frame 7 during side tipping.

[0046] In some embodiments, as Figure 5 As shown, the bracket body is provided with a gas spring mounting hole 4-2, one end of the gas spring 3 is connected with the gas spring mounting hole 4-2 through a bolt, and the other end is connected with the frame 7 through a bolt, and side tipping assist force is provided through the gas spring 3.

[0047] The second aspect of the utility model further provides a cab, the cab includes cab cabin assembly 8, the compact loader cab side tipping system, the cab cabin assembly 8 can be detachably installed on the cab base 1.

[0048] The third aspect of the utility model further provides a loader, the loader is provided with the cab, and the loader is a compact loader.

[0049] When the loader cab needs to be tipped, the bolt in the threaded hole 4-3 and the bolt in the base mounting hole 1-4 are disassembled, then the cab is driven to tip along the pin shaft connection of the front side tipping bracket 5 and the rear side tipping bracket 4 through the gas spring 3, and when the cab is tipped to the required position, the round clamping block 2-2 of the side tipping support rod 2 is embedded into the L-shaped slot 1-6, and the side tipping support rod 2 fixes and supports the cab during side tipping.

[0050] The compact loader cab side tipping system of the utility model is suitable for compact loaders, improves the maintainability of the compact loaders, optimizes product maintenance, simplifies the structure, reduces the research and development cost, increases the cab cushioning capacity, and improves the driving comfort.

[0051] In addition, those skilled in the art can understand that, although some embodiments described herein include certain features included in other embodiments but not other features, the combination of features of different embodiments also means that it is within the protection scope of the utility model and forms different embodiments. For example, in the above embodiments, those skilled in the art can use in a combined manner according to the known technical solutions and the technical problems to be solved in the present application.

Claims

1. A compact loader cab roll-over system characterized by, Comprise: Frame (7); Cab base (1) mounted above the frame (7); Roll-over assembly comprising front roll-over bracket (5), rear roll-over bracket (4) and gas spring (3), the front roll-over bracket (5), rear roll-over bracket (4) are connected with frame (7) respectively, and the front roll-over bracket (5), rear roll-over bracket (4) are connected with cab base (1) through pin shaft respectively, one end of the gas spring (3) is connected with rear roll-over bracket (4), and the other end is connected with cab base (1); Damping assembly mounted between the cab base (1) and the frame (7), comprising a plurality of silicon oil shock absorbers (6); Roll-over support rod (2) is installed between cab base (1) and frame (7), used for fixing and supporting cab during roll-over.

2. A compact loader cab roll-over system as claimed in claim 1, characterised in that, The bottom of the cab base (1) is provided with a guide limiting structure for guiding and limiting during roll-over reset; The guide limiting structure comprises an L-shaped plate (1-1) mounted on the bottom of the cab base (1), the L-shaped plate (1-1) is connected with the rear roll-over bracket (4), and the bottom of the L-shaped plate (1-1) is welded with a plurality of triangular welding blocks (1-3).

3. A compact loader cab roll-over system as claimed in claim 2, characterised in that, An L-shaped plate through hole (1-2) is formed in the L-shaped plate (1-1), and the L-shaped plate through hole (1-2) is connected with the rear roll-over bracket (4) by penetrating bolt.

4. A compact loader cab roll-over system as claimed in claim 1, characterized in that, One end of the roll-over support rod (2) is provided with a joint bearing (2-1), and the other end is provided with a circular clamping block (2-2).

5. A compact loader cab roll-over system as claimed in claim 4, characterised in that, The bottom of the cab base (1) is provided with a bent plate (1-5), and the bent plate (1-5) is provided with an L-shaped slot (1-6) matched with the circular clamping block (2-2).

6. A compact loader cab roll-over system as claimed in claim 1, characterized in that, The rear roll-over bracket (4) comprises a U-shaped bracket body, the bracket body is symmetrically provided with a bracket through hole (4-1), a bolt connected with the frame (7) is mounted on the bracket through hole (4-1), and the silicon oil shock absorber (6) is sleeved on the bolt; One side of the bracket body is provided with a threaded hole (4-3) for connecting the cab base (1), and the other side is provided with a pin shaft mounting hole (4-4) for mounting a rear bracket pin shaft, and the rear bracket pin shaft is connected with the cab base (1).

7. A compact loader cab roll-over system as claimed in claim 6, characterised in that, The bracket body is provided with a gas spring mounting hole (4-2), one end of the gas spring (3) is connected with the gas spring mounting hole (4-2) through bolt, and the other end is connected with the frame (7) through bolt.

8. A cab characterized in that The cab comprises a cab cabin assembly (8) and the compact loader cab roll-over system according to any one of claims 1-7, and the cab cabin assembly (8) is detachably mounted on the cab base (1).

9. A loader characterized in that, The loader is provided with the cab according to claim 8, and the loader is a compact loader.

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