CN205000384U - Frame behind strenghthened type loader - Google Patents

Abstract

The utility model discloses a reinforced rear frame of a loader, which comprises a left beam plate group and a right beam plate group corresponding thereto, and the front ends of the left beam plate group and the right beam plate group are respectively fixedly connected with an upper hinge plate and a lower hinge plate , the bottom of the middle end is fixedly connected with an auxiliary branch body, and the tail end is fixedly connected with a tail plate; the inner sides of the front ends of the left and right beam plate groups are respectively equipped with steering lugs, and the inner sides of the front parts are each fixedly installed with gearbox mounting brackets, and the top The cab bracket is fixedly installed, the engine front bracket is fixed on the inner bottom of the middle end, and the rear engine bracket and radiator mounting plate are respectively fixed on the inner side of the tail end. The utility model rationally optimizes the structural form on the premise of ensuring little change in the installation space and cost, so that each plate of the rear frame structure can form more box-shaped or semi-box-shaped structures, and improves the bending and torsion resistance of the rear frame. Keep the natural frequency of the structure away from the excitation frequency, so as to reduce the structural vibration, reduce the driver's ear noise and the radiated noise outside the vehicle.

Description

Reinforced loader rear frame

technical field

The utility model relates to an engineering machinery frame, which belongs to the field of engineering machinery, in particular to a reinforced rear frame of a loader.

Background technique

The rear frame is the key load-bearing part of the loader, supporting important devices such as the engine, drive train, drive axle, and counterweight. During the working process of the loader, it needs to bear the joint action of tension, compression, bending and torsion at the same time, and the force is relatively complicated. Under the action of excitation loads such as the engine, fan and road surface, the vibration of the rear frame structure increases, which intensifies the vibration of the cab structure, which in turn affects the noise level of the whole machine. How to effectively reduce vibration and noise has become an urgent problem to be solved. The current common single-board structure and integral box-type structure have unavoidable disadvantages in terms of performance and economy.

Contents of the invention

Aiming at the above-mentioned problems in the prior art, the utility model provides a reinforced loader rear frame, which can greatly improve the structural rigidity and reduce the vibration of the whole machine.

In order to achieve the above purpose, the technical solution adopted by the utility model is: a reinforced loader rear frame, including a left beam group and a corresponding right beam group, the left beam group and the right beam group The top and bottom of the front end are fixedly connected with the upper hinged plate and the lower hinged plate, the inner bottom of the middle end is fixedly connected with the auxiliary branch, and the tail end is fixedly connected with the tail plate. The hinged plate, the lower hinged plate, the auxiliary support body and the tail plate constitute the overall box-shaped structure of the rear frame; the inner side of the front end of the left beam plate group and the right beam plate group is equipped with a steering lug, and the inner side of the front part is fixedly installed with a gearbox The mounting bracket, the front end and the top of the middle end are fixedly installed with the cab bracket, the inner bottom of the middle end is fixed with the engine front bracket, and the inner side of the tail end is fixed with the engine rear bracket and the radiator mounting plate.

Further, the left beam plate set includes a left side plate, a left bent plate is fixed to the rear end of one side of the left side plate, and an upper sealing plate is fixed to the top of the left side plate and the left bent plate.

Further, the right beam plate set includes a right side plate, a right bent plate is fixed to the rear end of one side of the right side plate, and an upper sealing plate is fixed to the top of the right side plate and the right bent plate.

Further, in the left beam plate group and the right beam plate group, the joints between the left plate and the left bent plate and the joints between the right plate and the right bent plate are fixed with vertical plates, and the vertical plate and the left plate and the right Ribs are fixed at the joints of the slabs to increase the strength and stiffness of the left beam-slab group and the right beam-slab group.

Further, hooks are installed on the outside of the rear part of the left and right beam-plate groups, which are used for lifting and other special operations.

Further, a traction bracket is fixedly installed on the tail plate for traction.

The beneficial effects of the utility model are: on the premise of ensuring the installation space and the little change in cost, rationally optimize the structural form, so that each plate of the rear frame structure can form more box-shaped or semi-box-shaped structures, and improve the structure of the rear frame. The ability to resist bending and torsion greatly improves the rigidity and strength of the structure, reduces vibration, and reduces the noise around the driver's ears and the radiated noise outside the car.

Description of drawings

Fig. 1 is the structural representation of rear vehicle frame of loader of the present utility model;

Fig. 2 is a structural schematic diagram of the right beam plate group of the rear frame of the loader of the present invention;

Fig. 3 is a structural schematic diagram of the left beam plate group of the rear frame of the loader of the utility model.

In the figure: 1. Upper hinge plate; 2. Steering ear seat; 3. Cab support; 4. Gearbox support; 5. Right beam plate group; 6. Auxiliary support; ;9, radiator mounting plate; 10, tail plate; 11, traction bracket; 12, hook; 13, vertical plate; 14, reinforcing rib; 15, left beam plate group; 18, the right side plate; 19, the right bending plate; 20, the upper sealing plate; 21, the left side plate; 22, the left bending plate.

detailed description

Below in conjunction with accompanying drawing, the utility model is further described.

As shown in Figure 1, a rear frame of a reinforced loader includes a left beam plate set 15 and a right beam plate set 5 corresponding thereto, the tops of the front ends of the left beam plate set 15 and the right beam plate set 5 and The bottom is fixedly connected with the upper hinged plate 1 and the lower hinged plate 17, the inner bottom of the middle end is fixedly connected with two auxiliary branches 6, and the tail end is fixedly connected with a tail plate 10, the left beam plate group 15, the right beam The plate group 5 forms the overall box structure of the rear frame through the upper hinge plate 1, the lower hinge plate 17, the auxiliary support body 6, and the tail plate 10; A steering lug 2, a gearbox mounting bracket fixedly installed on the inner side of the front part 4, four cab brackets fixedly installed on the front end and the top of the middle end 3, an engine front bracket fixed on the inner bottom of the middle part 7, each on the inner side of the tail An engine rear bracket 8 and a radiator mounting plate 9 are fixed.

Further, as shown in FIG. 3 , the left beam plate group 15 includes a left side plate 21, the rear end of one side of the left side plate 21 is fixed with a left bent plate 22, and the left side plate 21 and the top of the left bent plate 22 are An upper sealing plate 20 is fixed.

Further, as shown in Figure 2, the right beam plate group 5 includes a right side plate 18, the rear end of one side of the right side plate 18 is fixed with a right bent plate 19, and the top of the right side plate 18 and the right bent plate 19 are An upper sealing plate 20 is fixed.

Further, in the left beam plate group 15 and the right beam plate group 5, the joints of the left side plate 21 and the left bent plate 22 and the joints of the right side plate 18 and the right bent plate 19 are fixed with vertical plates 13, and the vertical plate 13 is connected with the left side plate 21 and the right side plate 18, and a reinforcing rib 14 is fixed to improve the strength and rigidity of the left beam plate group and the right beam plate group.

Further, a hook 12 is respectively installed on the outside of the rear part of the left beam plate set 15 and the right beam plate set 5 for special operations such as lifting.

Further, a traction bracket 11 is fixedly installed on the tailgate 10 for traction.

To sum up, the utility model rationally optimizes the structural form on the premise of ensuring that the installation space and cost do not change much, so that each plate of the rear frame structure can form more box-shaped or semi-box-shaped structures, and the rear frame can be improved. The ability to resist bending and torsion keeps the natural frequency of the structure away from the excitation frequency, thereby reducing structural vibration, reducing the noise around the driver's ears and the radiated noise outside the vehicle.

As mentioned above, a similar technical solution can be derived in combination with the content of the solution given in the accompanying drawings. However, any simple modifications, equivalent changes and modifications made to the above embodiments according to the technical essence of the present utility model without departing from the content of the technical solution of the utility model still belong to the scope of the technical solution of the utility model.

Claims (6)

1. a reinforced Rear frame of loader, it is characterized in that, comprise a left beam slab group (15) and the right beam slab group (5) corresponding with it, the top of described left beam slab group (15) and right beam slab group (5) front end and bottom are fixedly connected with articulated slab (1) and lower articulated slab (17) respectively, middle-end inside bottom is fixedly connected with secondary support body (6), tail end is fixedly connected with tailgate (10); Described left beam slab group (15) and right beam slab group (5) leading inside are provided with and turn to ear seat (2), front inner be installed with gearbox mounting bracket (4), front end and middle-end top be installed with bottom cab legs (3), inside middle portion be fixed with engine front support (7), tail inner side is fixed with engine rear support (8) and radiator installing plate (9).

2. the reinforced Rear frame of loader of one according to claim 1, it is characterized in that, described left beam slab group (15) comprises a left plate (21), left plate (21) one surface rear end is fixed with left folding bent plate (22), and described left plate (21) and left folding bent plate (22) top are fixed with upper sealing plate (20).

3. the reinforced Rear frame of loader of one according to claim 1, it is characterized in that, described right beam slab group 5 comprises a right plate (18), right plate (18) one surface rear end is fixed with right folding bent plate (19), and described right plate (18) and right folding bent plate (19) top are fixed with upper sealing plate (20).

4. the reinforced Rear frame of loader of the one according to Claims 2 or 3, it is characterized in that, in described left beam slab group (15) and right beam slab group (5), left plate (21) is all fixed with riser (13) with left folding bent plate (22) junction and right plate (18) with right folding bent plate (19) junction, riser (13) and left plate (21) and right plate (18) junction, be all fixed with a reinforcing rib (14).

5. the reinforced Rear frame of loader of one according to claim 1, is characterized in that, described left beam slab group (15) and right beam slab group (5) rear outside are respectively provided with a suspension hook (12).

6. the reinforced Rear frame of loader of one according to claim 1, is characterized in that, described tailgate (10) is installed with towing bracket (11).