Novel slewing loader boom

Abstract

The utility model relates to a novel skid loader hoist arm belongs to loader production technical field. Including section steel big arm, turn bowl spacer, shovel oil jar turns the sleeve and elevating oil jar turns the sleeve, the tail section of arm side plate A and big arm side plate B is respectively welded in the both sides of section steel big arm front end, and the welding reinforcing support piece between big arm side plate A and big arm side plate B, reinforcing support piece includes big arm inner muscle board, the front end of big arm inner muscle board is bent and forms big arm outer muscle board, and the other end of big arm outer muscle board is bent and forms rear extension section A, the other end of rear extension section A is welded with the big arm front baffle of section steel big arm front end and connects, the other end of big arm inner muscle board is welded on the lower rail of section steel big arm front end. The utility model has the following beneficial effects: big arm side plate A and big arm side plate B between the welding reinforcing support piece, for big arm side plate A and big arm side plate B realize fixed effect, utilize reinforcing support piece to provide reinforcing effect simultaneously, improve the strength of forearm frame when using.

Description

Technical Field

[0001] This utility model relates to a novel skid steer loader boom, belonging to the field of loader manufacturing technology. Background Technology

[0002] Skid steer loaders, also known as skid steer loaders, multi-purpose engineering vehicles, or multi-purpose engineering machines, are wheeled specialized chassis equipment that achieves vehicle steering by utilizing the difference in linear speed between the wheels on both sides. They are mainly used in situations where the work site is confined, the ground is uneven, and the work content changes frequently.

[0003] The boom of a skid steer loader is the core component that enables its operational functions. The boom works in conjunction with the hydraulic system to ensure both efficiency and stability when lifting loads, avoiding excessive stress on the machine. However, current technology is not comprehensive and has the following drawbacks: In actual production operations, the weakest link is the weld between the boom frame and the steel boom. Existing boom frames suffer from difficulties in forming and poor connection strength. Failure to address these issues will cause numerous problems in the installation and use of the skid steer loader boom.

[0004] To solve one of the above problems, a new type of skid steer loader boom is urgently needed. Utility Model Content

[0005] Based on the shortcomings of the existing technology, the technical problem to be solved by this utility model is: how to achieve modular design, reduce processing difficulty, improve the structural strength of the boom, and thus reduce processing costs. To this end, a new type of skid steer loader boom is provided.

[0006] The novel skid steer loader boom of this utility model includes a steel boom, a bucket swivel sleeve, a bucket cylinder swivel sleeve, and a lifting cylinder swivel sleeve. The boom swivel sleeve is installed at the rear end of the steel boom, and a front boom frame is installed at the front end of the steel boom. The bucket swivel sleeve, bucket cylinder swivel sleeve, and lifting cylinder swivel sleeve are respectively installed at the front, middle, and rear positions of the front boom frame. The front boom frame is characterized by including two spaced-apart boom side plates A and B, both of which are arc-shaped structures. The tail sections of the boom side plates A and B are respectively welded to both sides of the front end of the steel boom. A reinforcing support is welded between the boom side plates A and B. The reinforcing support includes an inner boom stiffening plate. The front end of the inner boom stiffening plate is bent to form an outer boom stiffening plate. The other end of the outer boom stiffening plate is bent to form a rear extension section A. The other end of the rear extension section A is welded to the front boom end plate of the steel boom. The other end of the inner boom stiffening plate is welded to the lower circumference plate of the front end of the steel boom.

[0007] The forelimb frame includes a boom side plate A, a boom side plate B, and an inner boom stiffening plate, which are assembled with the steel boom. The sides of the boom outer stiffening plate, the rear extension section A, and the boom inner stiffening plate are welded to the inner walls of boom side plates A and B, respectively, and all connections are welded for fixation. This modular design reduces processing difficulty, improves the structural strength of the boom, and thus reduces processing costs, achieving a balance between stability, flexibility, and economy. Reinforcing supports are welded between boom side plates A and B to secure them and provide reinforcement, increasing the strength of the forelimb frame during use. It features strong connection strength, stability, and installation accuracy.

[0008] In any of the above embodiments, preferably, the inner stiffening plate of the boom includes an arc-shaped segment, the front end of which is integrally formed with a front straight extension segment, which is parallel to the outer stiffening plate of the boom. The other end of the front straight extension segment is integrally formed with a bent segment connected to the outer stiffening plate of the boom. The other end of the arc-shaped segment is connected to the straight welded segment via a rear extension segment B. The upper surface of the straight welded segment is welded to the steel boom. The use of integrally formed outer and inner stiffening plates of the boom achieves reinforced connections between boom side plates A and B, and between boom side plates A and B and the steel boom, enabling load transfer and distribution, and enhancing the local stiffness and strength of the forearm frame structure.

[0009] In any of the above embodiments, it is preferred that the rear extension section A, the outer stiffening plate of the boom, and the inner stiffening plate of the boom are integrally formed by bending steel plates. This modular design reduces processing difficulty and improves the structural strength of the boom.

[0010] In any of the above embodiments, it is preferred that both boom side plate A and boom side plate B have three sections: front, middle, and rear. The front ends of boom side plate A and boom side plate B are respectively provided with front section mounting holes A and B for installing the bucket cylinder sleeve. The middle sections of boom side plate A and boom side plate B are respectively provided with middle section mounting holes A and middle section mounting holes B for installing the bucket cylinder sleeve. The rear sections of boom side plate A and boom side plate B are respectively provided with rear section mounting holes A and rear section mounting holes B for installing the lifting cylinder sleeve. A rich variety of mounting holes can be produced using cutting and forming technology, with the main advantages being high-precision machining and flexible and convenient installation.

[0011] In any of the above embodiments, it is preferred that the side plate B of the boom has a rearview mirror mounting hole.

[0012] In any of the above embodiments, it is preferred that the steel boom is configured as a hollow rectangular tubular structure, with a front boom end plate and a rear boom end plate welded to its front and rear ends, respectively. All assembly hole positions can be cut and processed in one go using a laser cutting machine, reducing the number of welded joints in the boom. This reduces the occurrence of quality problems, improves work efficiency, and lowers processing costs.

[0013] In any of the above embodiments, preferably, positioning blocks A and B are respectively provided on both sides of the front endplate of the boom, and positioning slots A and B, which cooperate with positioning blocks A and B, are respectively provided on the two sets of side panels of the steel boom. Positioning blocks A and B are respectively embedded in positioning slots A and B, and the four sides of the front endplate of the boom are welded to the upper and lower panels of the steel boom and the two sets of side panels. Welding the front endplate of the boom can firmly connect the front endplate of the boom to the steel boom, forming a strong integral connection. This connection method can effectively transfer and disperse stress.

[0014] In any of the above embodiments, it is preferred that the tail end of the steel boom has a plug hole for installing the boom swivel sleeve.

[0015] Compared with the prior art, the present invention has the following beneficial effects: The novel skid steer loader boom of this utility model has its outer stiffening plate, rear extension section A, and inner stiffening plate welded to the inner walls of boom side plate A and boom side plate B, respectively, with all connections fixed by welding. The modular design of independent components (such as side plates and stiffening plates) simplifies the processing complexity of individual components, reduces processing difficulty, improves the structural strength of the boom, and thus reduces processing costs, achieving a balance between stability, flexibility, and economy.

[0016] The novel skid steer loader boom of this utility model has a reinforcing support welded between the boom side plate A and the boom side plate B, which provides a fixing effect for the boom side plate A and the boom side plate B, and at the same time provides a strengthening effect, thereby improving the strength of the boom frame during use.

[0017] The novel skid steer loader boom described in this utility model adopts an integrally formed outer stiffening plate and inner stiffening plate of the boom to achieve a reinforced connection between boom side plate A and boom side plate B, as well as between boom side plate A, boom side plate B and the steel boom, so as to transfer and distribute the connection load and enhance the local stiffness and strength of the forearm frame structure. Attached Figure Description

[0018] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the accompanying drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to scale.

[0019] Figure 1 This is a perspective view of the present utility model; Figure 2 This is an exploded view of the present invention; Figure 3 This is a cross-sectional view of the present invention; Figure 4 This is a structural diagram of the steel boom.

[0020] In the diagram: 1. Steel boom 2. Outer stiffening plate of boom 2.1. Rear extension section A 3. Side plate of boom A 3.1. Front mounting hole A 3.2. Middle mounting hole A 3.3. Tail mounting hole A 4. Bucket spacer sleeve 5. Inner stiffening plate of boom 5.1. Arc-shaped section 5.2. Front straight extension section 5.3. Bending section 5.4. Rear extension section B 5.5. Straight welded section 6. Bucket cylinder rotating sleeve 7. Lifting cylinder rotating sleeve 8. Boom rotating sleeve 9. Tail end block plate of boom 10. Front end block plate of boom 10.1. Positioning block A 10.2. Positioning block B 11. Side plate of boom B 12. Rearview mirror mounting hole. Detailed Implementation

[0021] The present invention will be further described below with reference to the accompanying drawings: The present invention will be further described below through specific embodiments, but it is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

[0022] Example 1, such as Figure 1-2As shown, the novel skid steer loader boom includes a steel boom 1, a bucket swivel sleeve 4, a bucket cylinder swivel sleeve 6, and a lifting cylinder swivel sleeve 7. A boom swivel sleeve 8 is installed at the rear end of the steel boom 1, and a front boom frame is installed at the front end of the steel boom 1. The bucket swivel sleeve 4, bucket cylinder swivel sleeve 6, and lifting cylinder swivel sleeve 7 are respectively installed at the front, middle, and rear positions of the front boom frame. The front boom frame includes boom side plates A3 and B11 spaced apart. Both boom side plates A3 and B11 have an arc-shaped structure. The tail sections of A3 and the boom side plate B11 are respectively welded to the two sides of the front end of the steel boom 1. A reinforcing support is welded between the boom side plate A3 and the boom side plate B11. The reinforcing support includes the boom inner stiffening plate 5. The front end of the boom inner stiffening plate 5 is bent to form the boom outer stiffening plate 2. The other end of the boom outer stiffening plate 2 is bent to form the rear extension section A2.1. The other end of the rear extension section A2.1 is welded to the boom front end plate 10 at the front end of the steel boom 1. The other end of the boom inner stiffening plate 5 is welded to the lower circumference plate at the front end of the steel boom 1. The boom frame includes boom side plate A3, boom side plate B11, and boom inner stiffening plate 5, which are assembled with the existing steel boom 1. The sides of the boom outer stiffening plate 2, the rear extension section A2.1, and the boom inner stiffening plate 5 are welded to the inner walls of boom side plate A3 and boom side plate B11, respectively, and all connections are welded for fixation. This modular design reduces processing difficulty, improves the structural strength of the boom, and thus reduces processing costs, achieving a balance between stability, flexibility, and economy. Reinforcing supports are welded between boom side plate A3 and boom side plate B11 to secure them and provide reinforcement, increasing the strength of the boom frame during use.

[0023] Example 2, as Figure 1-2As shown, the novel skid steer loader boom includes a steel boom 1, a bucket swivel sleeve 4, a bucket cylinder swivel sleeve 6, and a lifting cylinder swivel sleeve 7. A boom swivel sleeve 8 is installed at the rear end of the steel boom 1, and a front boom frame is installed at the front end of the steel boom 1. The bucket swivel sleeve 4, bucket cylinder swivel sleeve 6, and lifting cylinder swivel sleeve 7 are respectively installed at the front, middle, and rear positions of the front boom frame. The front boom frame includes boom side plates A3 and B11 spaced apart. Both boom side plates A3 and B11 have an arc-shaped structure. The tail sections of A3 and the boom side plate B11 are respectively welded to the two sides of the front end of the steel boom 1. A reinforcing support is welded between the boom side plate A3 and the boom side plate B11. The reinforcing support includes the boom inner stiffening plate 5. The front end of the boom inner stiffening plate 5 is bent to form the boom outer stiffening plate 2. The other end of the boom outer stiffening plate 2 is bent to form the rear extension section A2.1. The other end of the rear extension section A2.1 is welded to the boom front end plate 10 at the front end of the steel boom 1. The other end of the boom inner stiffening plate 5 is welded to the lower circumference plate at the front end of the steel boom 1.

[0024] Furthermore, the inner stiffening plate 5 of the boom includes an arc-shaped segment 5.1. The front end of the arc-shaped segment 5.1 is integrally formed with a front straight extension segment 5.2, which is parallel to the outer stiffening plate 2 of the boom. The other end of the front straight extension segment 5.2 is integrally formed with a bent segment 5.3 connected to the outer stiffening plate 2 of the boom. The other end of the arc-shaped segment 5.1 is connected to a straight welded segment 5.5 via a rear extension segment B5.4. The upper surface of the straight welded segment 5.5 is welded to the steel boom 1. The integrally formed outer stiffening plate 2 and inner stiffening plate 5 of the boom achieve a reinforced connection between the boom side plates A3 and B11, and between the boom side plates A3 and B11 and the steel boom 1, thereby transferring and distributing the connection load and enhancing the local stiffness and strength of the forearm frame structure.

[0025] Furthermore, the rear extension section A2.1, the outer stiffening plate 2 of the boom, and the inner stiffening plate 5 of the boom are formed by integral bending of steel plates. This modular design reduces processing difficulty and improves the structural strength of the boom.

[0026] Furthermore, both the boom side plate A3 and boom side plate B11 have three sections: front, middle, and rear. The front ends of boom side plates A3 and B11 are respectively provided with front section mounting holes A3.1 and B for installing the bucket separator 4. The middle sections of boom side plates A3 and B11 are respectively provided with middle section mounting holes A3.2 and B for installing the bucket cylinder rotating sleeve 6. The rear sections of boom side plates A3 and B11 are respectively provided with rear section mounting holes A3.3 and B for installing the lifting cylinder rotating sleeve 7. A rich variety of mounting holes can be created using cutting and forming technology, with the main advantages being high-precision machining and flexible and convenient installation.

[0027] Furthermore, a rearview mirror mounting hole 12 is provided on the side plate B11 of the boom.

[0028] Furthermore, the steel boom 1 is configured as a hollow rectangular tubular structure, with a boom front end plate 10 and a boom tail end plate 9 welded to its front and rear ends respectively.

[0029] Reference Figure 3 and Figure 4 The steel boom 1 is made of GB / 6728 steel, with dimensions of 160x60x4.5cm and material Q345, replacing the original sheet metal bending and welding method. All assembly hole positions are cut and processed in one go using a laser cutting machine, reducing the number of welding joints in the boom. This reduces the occurrence of quality problems, improves work efficiency, and lowers processing costs.

[0030] Furthermore, positioning blocks A10.1 and B10.2 are respectively provided on both sides of the front end plate 10 of the boom. Positioning slots A and B, which cooperate with positioning blocks A10.1 and B10.2, are respectively provided on the two sets of side panels of the steel boom 1. Positioning blocks A10.1 and B10.2 are respectively embedded in positioning slots A and B. The four sides of the front end plate 10 of the boom are welded to the upper panel, lower panel and two sets of side panels of the steel boom 1.

[0031] The welding of the boom front end plate 10 can firmly connect the boom front end plate 10 to the steel boom 1, forming a strong integral connection. This connection method can effectively transfer and disperse stress.

[0032] Furthermore, the tail end of the steel boom 1 is provided with a plug hole for installing the boom swivel sleeve 8.

[0033] The novel skid steer loader boom of this utility model has its outer stiffening plate, rear extension section A, and inner stiffening plate welded to the inner walls of boom side plate A and boom side plate B, respectively, and all connections are fixed by welding. The modular design reduces the processing difficulty, improves the structural strength of the boom, and thus reduces the processing cost, achieving a balance between stability, flexibility, and economy.

[0034] The novel skid steer loader boom of this utility model has a reinforcing support welded between the boom side plate A and the boom side plate B, which provides a fixing effect for the boom side plate A and the boom side plate B, and at the same time provides a strengthening effect, thereby improving the strength of the boom frame during use.

[0035] The novel skid steer loader boom described in this utility model adopts an integrally formed outer stiffening plate and inner stiffening plate of the boom to achieve a reinforced connection between boom side plate A and boom side plate B, as well as between boom side plate A, boom side plate B and the steel boom, so as to transfer and distribute the connection load and enhance the local stiffness and strength of the forearm frame structure.

[0036] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

[0037] Any aspects of this invention not described in detail are well-known to those skilled in the art.

Claims

1. A novel skid steer loader boom, comprising a steel boom, a bucket swivel sleeve, a bucket cylinder swivel sleeve, and a lifting cylinder swivel sleeve, wherein the boom swivel sleeve is installed at the rear end of the steel boom, and a boom frame is installed at the front end of the steel boom; the bucket swivel sleeve, the bucket cylinder swivel sleeve, and the lifting cylinder swivel sleeve are respectively installed at the front, middle, and rear positions of the boom frame, characterized in that: The boom frame includes boom side plates A and B spaced apart, both of which are arc-shaped. The tail sections of boom side plates A and B are welded to the two sides of the front end of the steel boom. A reinforcing support is welded between boom side plates A and B. The reinforcing support includes an inner boom stiffener. The front end of the inner boom stiffener is bent to form an outer boom stiffener. The other end of the outer boom stiffener is bent to form a rear extension section A. The other end of the rear extension section A is welded to the front boom end plate of the steel boom. The other end of the inner boom stiffener is welded to the lower circumference plate of the front end of the steel boom.

2. The novel skid steer loader boom according to claim 1, characterized in that, The inner stiffening plate of the boom includes an arc-shaped segment. The front end of the arc-shaped segment is integrally formed with a front straight extension segment. The front straight extension segment is parallel to the outer stiffening plate of the boom. The other end of the front straight extension segment is integrally formed with a bent segment connected to the outer stiffening plate of the boom. The other end of the arc-shaped segment is connected to the straight welding segment through a rear extension segment B. The upper surface of the straight welding segment is welded to the steel boom.

3. The novel skid steer loader boom according to claim 2, characterized in that, The rear extension section A, the outer stiffening plate of the boom, and the inner stiffening plate of the boom are formed by integral bending of steel plates.

4. The novel skid steer loader boom according to claim 1, characterized in that, Both boom side plate A and boom side plate B have three sections: front, middle, and tail. The front ends of boom side plate A and boom side plate B are respectively provided with front section mounting holes A and B for installing bucket cylinder sleeves. The middle sections of boom side plate A and boom side plate B are respectively provided with middle section mounting holes A and middle section mounting holes B for installing bucket cylinder sleeves. The tail sections of boom side plate A and boom side plate B are respectively provided with tail section mounting holes A and tail section mounting holes B for installing lifting cylinder sleeves.

5. The novel skid steer loader boom according to any one of claims 1-4, characterized in that, The side plate B of the boom is provided with a rearview mirror mounting hole.

6. The novel skid steer loader boom according to claim 5, characterized in that, The steel boom is configured as a hollow rectangular tubular structure, with a front boom end plate and a rear boom end plate welded to its front and rear ends, respectively.

7. The novel skid steer loader boom according to claim 6, characterized in that, Positioning blocks A and B are respectively provided on both sides of the front end plate of the boom. Positioning slots A and B, which cooperate with positioning blocks A and B, are respectively provided on the two sets of side panels of the steel boom. Positioning blocks A and B are respectively embedded in positioning slots A and B. The four sides of the front end plate of the boom are welded to the upper and lower panels of the steel boom and the two sets of side panels.

8. The novel skid steer loader boom according to claim 7, characterized in that, The tail end of the steel boom is provided with a plug hole for installing the boom swivel.

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