CN113047354A - Backhoe frame for engineering machinery - Google Patents

Abstract

The invention discloses a backhoe frame for engineering machinery, which comprises seat plates which are longitudinally arranged in a bilateral symmetry manner, and an upper hinge seat and a lower hinge seat which are transversely arranged up and down, wherein the seat plates which are bilaterally symmetrical are fixedly connected with the side part of the upper hinge seat and the side part of the lower hinge seat respectively; the sensor mount pad is provided with in the top of bedplate, is provided with the axle sleeve of symmetric distribution on the bedplate, the back of bedplate is fixed and is provided with the mounting panel. The invention effectively integrates the working conditions of supporting and excavating the supporting legs, has the function of automatically leveling the supporting legs, enlarges the working range of the excavating operation, improves the departure angle of the whole machine, and greatly improves the working efficiency of emergency rescue; meanwhile, the small component of the seat board is changed into an integral bending component, so that the working efficiency is improved, and the welding stress is reduced.

Description

Backhoe frame for engineering machinery

Technical Field

The invention relates to a backhoe frame for engineering machinery, and belongs to the technical field of multifunctional rescue engineering equipment.

Background

In emergency rescue occasions such as earthquakes, debris flows, building collapse, landslide and the like, the work such as excavation, shovel loading and the like is often needed, the materials are excavated, shovel loaded, pushed to shovel and stacked, and barriers are clamped and dragged. So as to finish the works of road dredging, barrier lake dredging, people and object burying rescue, ruins cleaning and the like. Therefore, the multifunctional wheel type engineering truck is provided with a loading arm and an excavating arm. Because the working environment of a general rescue site is limited, the whole machine is required to be as compact as possible, the working range is as large as possible, the whole machine has good maneuverability, and the frame is used as a chassis and a working device to bear key parts, so that the mounting function of each system is met, and meanwhile, the structure is reasonable, and the arrangement of each system is convenient.

The wheel type engineering vehicle requires a large departure angle to adapt to cross-country working conditions and a maximum climbing angle, the backhoe frame is a structure for mounting the excavating device, and the design of the backhoe frame is directly related to excavating operation parameters and a complete machine departure angle.

The seat plate and the T-shaped joint of the lower hinged seat in the prior art have small adjustment space, and the rotary cylinder is small in pressing installation and maintenance space. The seat plate is made up of multiple pieces forming a welded subassembly.

Disclosure of Invention

The prior art has the following disadvantages: because the structural style of the prior art is limited, the position of the lower hinged seat directly influences the small departure angle of the whole machine, the maximum climbing angle of the whole machine is small, and the maintenance space is small. The part variety is many, and welded joint is many, and welding stress is great.

The invention aims to overcome the defects of the prior art and provides a backhoe frame for engineering machinery, which comprises a left seat plate, a right seat plate, an upper hinged seat, a lower hinged seat, a sensor mounting seat, a bent plate, a mounting plate and the like. The left seat plate and the right seat plate are symmetrically and longitudinally arranged, the upper hinged seat plate and the lower hinged seat plate are transversely arranged and are welded into a whole, the upper hinged plate and the lower hinged plate are symmetrically welded, and the inner side of the seat plate is reasonably arranged up and down. The working conditions of supporting and excavating operation of the supporting legs are met, the supporting ground of the supporting legs, the rotation and the amplitude of the excavating arm are effectively integrated, the structure is compact on the premise of meeting the strength and the rigidity, the departure angle of the whole machine is increased, and the working range of emergency rescue is greatly enlarged.

The invention adopts the following technical scheme: a backhoe frame for engineering machinery is characterized by comprising seat plates which are longitudinally arranged in a bilateral symmetry mode, an upper hinge seat and a lower hinge seat which are transversely arranged up and down, wherein the seat plates in the bilateral symmetry mode are fixedly connected with the side portion of the upper hinge seat and the side portion of the lower hinge seat respectively; the sensor mounting seat is arranged above the seat plate, and the seat plate is provided with symmetrically distributed shaft sleeves.

In a preferred embodiment, the seat plate is a longitudinal support structure of the upper hinge seat and the lower hinge seat.

As a better embodiment, a first bending plate and a second bending plate which are arranged in parallel with the seat plates are respectively and fixedly arranged in the two seat plates; the first bent plate and the second bent plate are used for assisting in improving the strength and rigidity of the seat plate, and form a box-shaped structure with the seat plate and are welded in parallel to the seat plate.

As a preferred embodiment, the sensor mounting seats are distributed in a bilateral symmetry mode and used for mounting sensors for detecting the folding positions of the supporting legs.

As a better embodiment, the upper hinged seat and the lower hinged seat are both used for installing the excavating device rotating frame to realize excavating action.

As a preferred embodiment, the back of the seat board is fixedly provided with a mounting plate.

As a preferred embodiment, the mounting plate is used to compress the swing cylinder.

As a preferred embodiment, the bushing is used for hinge pin fixation.

In a preferred embodiment, a bushing penetrates the seat plate and is welded to the seat plate.

As a preferred embodiment, the longitudinal support structure is a column structure with a U-shaped cross section.

Compared with the prior art, the invention has the beneficial effects that: aiming at the problems that the prior art is limited in structural form, the position of the lower hinge seat directly influences the small departure angle of the whole machine, the maximum climbing angle of the whole machine is small, and the maintenance space is small. The technical defects of multiple types of parts, multiple welding joints and large welding stress are overcome, the integral symmetrical backhoe frame formed by the base plate and the upper and lower hinged seats is designed, working conditions such as supporting and excavating of supporting legs are effectively integrated, the automatic leveling function of the supporting legs is realized, the working range of excavating operation is enlarged, the departure angle of the whole machine is improved, and the working efficiency of emergency rescue is greatly improved; meanwhile, the base plate is changed into an integral bending part from a small component, so that the working efficiency is improved, the welding stress is reduced, and the problems that the whole machine has a small departure angle, a large maximum climbing angle and a small maintenance space which are directly influenced by the position of a lower hinged seat due to the limited structural form in the prior art are thoroughly solved. The variety of parts is many, and the welded joint is many, the great technical problem of welding stress.

Drawings

Fig. 1 is a schematic structural view of a preferred embodiment of the present invention.

The meanings of the symbols in the figures: the sensor comprises a base plate 1, a sensor mounting seat 2, an upper hinged seat 3, a first bent plate 4, a shaft sleeve 5, a second bent plate 6, a lower hinged seat 7 and a mounting plate 8.

Detailed Description

The invention is further described below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby.

As shown in fig. 1, the invention provides a backhoe frame for engineering machinery, which comprises a seat plate 1, a sensor mounting seat 2, an upper hinge seat 3, a first bent plate 4, a shaft sleeve 5, a second bent plate 6, a lower hinge seat 7 and a mounting plate 8; the backhoe frame disclosed by the invention adopts a symmetrical structure, the mounting space is large, the departure angle of the whole machine is effectively improved, and the mounting position of the supporting leg is adjusted according to the structural requirement.

The seat plate 1 is a longitudinal support structure of an upper hinge seat 3 and a lower hinge seat 7, is welded into a whole and is mainly provided with a supporting leg and a supporting leg amplitude-variable oil cylinder; the section of the seat plate 1 is of a U-shaped upright column structure, cold press molding is carried out, and the precision of a shaft sleeve hole for accommodating the shaft sleeve 5 is high.

The sensor mounting seats 2 are arranged in a left-right symmetrical mode according to the supporting legs and are used for mounting sensors for detecting the retracting positions of the supporting legs; the sensor mounting seat 2 is formed by welding a left vertical plate, a right vertical plate and a plate, is good in stress and small in occupied space, and has a protection function and an anti-collision design, and the sensing space reserved by the plate is convenient to detect.

The upper hinge seat 3 and the lower hinge seat 7 are both formed by single plates, the welding flange at the hinge hole part is reinforced, the welding groove is symmetrically welded, the welding deformation is reduced on the basis of ensuring the strength, the appearance design is carried out according to the rotation of the excavating arm and the installation requirement of the excavating valve, and the movement and installation space is reserved; the upper hinged seat 3 and the lower hinged seat 7 are used for installing a revolving frame of the excavating device, so that excavating action is realized.

The first bent plate 4 is used for assisting in improving the strength and rigidity of the seat plate 1 and forms a box-shaped structure with the seat plate 1 and is welded in parallel with the seat plate 1.

The shaft sleeve 5 is used for fixing the hinge pin shaft and penetrates through a shaft sleeve hole in the seat plate 1 for welding; the four shaft sleeves 5 are used for mounting the supporting legs and the supporting leg oil cylinder hinged pin shafts, and are reasonable in structure, large in mounting space and convenient to mount and dismount.

The second bent plate 6 acts on the first bent plate 4 and is used for assisting in improving the strength and the rigidity of the seat plate 1, the second bent plate and the seat plate 1 form a box-shaped structure and are welded in parallel to the seat plate 1, and the lower portion of the second bent plate 6 is provided with a water through hole.

And the mounting plate 8 is used for pressing the rotary oil cylinder.

Compared with the prior art, the invention has the beneficial effects that: aiming at the problems that the prior art is limited in structural form, the position of the lower hinge seat directly influences the small departure angle of the whole machine, the maximum climbing angle of the whole machine is small, and the maintenance space is small. The technical defects of multiple types of parts, multiple welding joints and large welding stress are overcome, the integral symmetrical backhoe frame formed by the base plate and the upper and lower hinged seats is designed, working conditions such as supporting and excavating of supporting legs are effectively integrated, the automatic leveling function of the supporting legs is realized, the working range of excavating operation is enlarged, the departure angle of the whole machine is improved, and the working efficiency of emergency rescue is greatly improved; meanwhile, the base plate is changed into an integral bending part from a small component, so that the working efficiency is improved, the welding stress is reduced, and the technical problems that the whole machine has small departure angle, the maximum climbing angle of the whole machine is small, the maintenance space is small, the types of parts are multiple, the number of welding joints is large, and the welding stress is large in the prior art because the structural form is limited, and the position of the lower hinged base directly influences the whole machine.

The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, several modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.

Claims (10)

1. The backhoe frame for the engineering machinery is characterized by comprising seat plates (1) which are longitudinally arranged in a bilateral symmetry mode, an upper hinge seat (3) and a lower hinge seat (7) which are transversely arranged in an up-down mode, wherein the seat plates (1) which are bilaterally symmetrical are fixedly connected with the side portion of the upper hinge seat (3) and the side portion of the lower hinge seat (7) respectively; the sensor mounting seat is characterized in that a sensor mounting seat (2) is arranged above the seat plate (1), and shaft sleeves (5) are symmetrically distributed on the seat plate (1).

2. A backhoe frame for construction machinery according to claim 1, wherein the seat plate (1) is a longitudinal support structure of the upper hinge seat (3) and the lower hinge seat (7).

3. The backhoe frame for construction machinery according to claim 1, wherein a first bending plate (4) and a second bending plate (6) arranged in parallel with the seat plate (1) are respectively and fixedly arranged inside the two seat plates (1).

4. A backhoe frame for construction machinery according to claim 1, wherein the sensor mounting seats (2) are arranged in bilateral symmetry for mounting sensors for detecting the retracted positions of the legs.

5. A backhoe frame for construction machinery according to claim 1, wherein the upper hinge base (3) and the lower hinge base (7) are used for mounting a backhoe turret.

6. A backhoe frame for construction machinery according to claim 1, wherein a mounting plate (8) is fixedly provided at the back of the seat plate (1).

7. A backhoe frame for a working machine according to claim 6, wherein the mounting plate (8) is adapted to press the swing cylinder.

8. A backhoe frame for construction machinery according to claim 1, wherein the bushing (5) is used for hinge pin fixing.

9. A backhoe holder for construction machinery according to claim 8, wherein the bushing (5) penetrates into the seat plate (1) and is welded to the seat plate (1).

10. A backhoe frame for a construction machine according to claim 2, wherein the longitudinal support structure is a U-shaped cross-section upright column structure.

Images