Adjustable steering device of loading machine

Abstract

The utility model relates to the technical field of loading equipment, in particular to an adjustable steering device of a loading machine, which is arranged between a front frame and a rear frame which are mutually hinged on the loading machine and comprises a rear mounting lower beam and a rear mounting upper beam which are fixedly arranged on the rear frame, and a lifting seat is movably arranged between the rear mounting lower beam and the rear mounting upper beam. A steering cylinder is arranged on the lifting seat; the front mounting beam is fixedly arranged on the front frame and is hinged with the steering cylinder; the vector distance of the steering cylinder acting on the front frame and the rear frame is changed by adjusting the height position of the lifting seat. According to the adjustable steering device of the loading machine, the steering flexibility and the steering radius can be adjusted, so that the adjustable steering device is suitable for different working scenes.

Description

TECHNICAL FIELD

[0001] The utility model relates to loading equipment technical field, concretely is adjustable steering device of loader. BACKGROUND

[0002] Loader is a common engineering machinery, and is widely used in construction, mine, road construction, port field. It is mainly used for shoveling, carrying, stacking and unloading loose materials, such as sand, soil, stone, coal, etc.

[0003] The subject structure of loader is: a bucket is used for loading and transporting materials, a front frame is used for setting the bucket and the components for lifting the bucket, and a rear frame is used for arranging a cab and driving components.

[0004] At present, the steering of the loader is realized by the hydraulic stroke cylinder, and the front frame and the rear frame are rotated along the hinge shaft. However, the conventional fixed steering mode still has the following disadvantages:

[0005] The high sensitivity makes the steering excessive, and the vehicle body needs to be adjusted multiple times during loading and unloading operation.

[0006] The low sensitivity makes the steering insufficient, and the steering radius increases during transportation operation. INVENTION CONTENTS

[0007] In order to solve the technical problems in the background art, the utility model provides an adjustable steering device for loader, which can adjust the flexibility of steering and the steering radius to adapt to different working scenes.

[0008] The utility model solves the technical scheme adopted by the utility model is:

[0009] An adjustable steering device for loader is arranged between the front frame and the rear frame of the loader, the front frame and the rear frame are hingedly connected, and comprises:

[0010] A rear mounting lower beam and a rear mounting upper beam are fixedly arranged on the rear frame, a lifting seat is movably arranged between the rear mounting lower beam and the rear mounting upper beam, and a steering cylinder is arranged on the lifting seat; a front mounting beam is hingedly arranged on the front frame, and the front mounting beam is hingedly connected with the steering cylinder; by adjusting the height position of the lifting seat, the vector distance of the steering cylinder acting on the front frame and the rear frame is changed.

[0011] Further, the rear mounting lower beam is arranged directly below the rear mounting upper beam.

[0012] Further, the rear mounting lower beam is arranged transversely along the left-right direction of the loader, symmetrically arranged limiting seats are fixedly arranged on the left and right sides of the upper end surface of the rear mounting lower beam, and a sliding rod is arranged on the limiting seat and extends upward.

[0013] Further, the lifting seat is slidably clamped on the slide rod.

[0014] Further, the rear mounting upper beam is fixedly arranged at the upper end of the slide rod.

[0015] Further, the left and right sides of the lifting seat are respectively provided with a sliding groove and a first hinged rod, the first hinged rod is hinged with the lifting seat, a sliding block is slidably arranged on the sliding groove, a second hinged rod is hinged on the sliding block, and the second hinged rod is hinged with the first hinged rod.

[0016] Further, the hinge points of the first hinged rod and the second hinged rod are arranged at the center of the two.

[0017] Further, the rear mounting upper beam is arranged in the transverse direction of the loader, an adjusting cylinder is arranged on the rear mounting upper beam along the extension direction of the rear mounting upper beam, a through slot is arranged on the rear mounting upper beam below the stroke end of the adjusting cylinder, the first hinged rod is arranged in the through slot, and the first hinged rod is hinged with the stroke end of the adjusting cylinder.

[0018] Further, the second hinged rod is hinged with the lower end of the rear mounting upper beam away from the through slot.

[0019] Further, the lifting seat is hinged with a hinge seat, and the hinge shafts of the two are arranged in the left-right direction.

[0020] The front and rear ends of the steering cylinder are hinged with the front mounting beam and the hinge seat respectively, and the hinge shafts of the three are arranged in the up-down direction.

[0021] The loader adjustable steering device has the following beneficial effects:

[0022] 1. The height of the lifting seat is adjusted, the action distance of the steering cylinder is changed, and thus the steering sensitivity and the steering radius are adjusted.

[0023] 2. The hinge seat ensures that the steering cylinder can realize steering work in different height states. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 is a three-dimensional schematic view of the utility model example.

[0025] In the drawing:

[0026] 10, rear mounting lower beam, 11, limiting seat, 12, slide rod, 13, lifting seat, 14, first hinged rod, 15, sliding groove,

[0027] 16, sliding block, 17, second hinged rod,

[0028] 20, rear mounting upper beam, 21, adjusting cylinder, 22, through slot,

[0029] 30, hinge seat,

[0030] 40, steering cylinder,

[0031] 50, front mounting beam. DETAILED DESCRIPTION

[0032] In order to more clearly and explicitly illustrate the specific implementation purposes and implementation manners of the utility model, the technical scheme of the utility model will be described completely below, and the described embodiments are part of the embodiments of the utility model, rather than all the embodiments. On the premise that no creative work is made, all other embodiments based on the described embodiments of the utility model belong to the protection scope of the utility model.

[0033] The utility model relates to a loader adjustable steering device, as shown in the figure, is arranged between the front frame and rear frame of the loader, the front frame, rear frame are hinged, and it comprises: the rear mounting lower beam 10 of welding fixed setting on the rear frame, rear mounting upper beam 20, the front mounting beam 50 of hinged setting on the front frame. Figure 1 The rear mounting lower beam 10 is arranged directly below the rear mounting upper beam 20, and the rear mounting lower beam 10 is horizontally arranged along the left-right direction of the loader, the left and right sides of the upper end surface of the rear mounting lower beam 10 are fixedly provided with symmetrical limiting seats 11, the limiting seat 11 is upwardly and upwardly extendedly provided with a sliding rod 12, and the sliding rod 12 is slidably clamped with a lifting seat 13; the left and right sides of the lifting seat 13 are respectively provided with a sliding groove 15 and a first hinge rod 14, the first hinge rod 14 is hingedly connected with the lifting seat 13, the sliding groove 15 is slidably provided with a sliding block 16, the sliding block 16 is hingedly provided with a second hinge rod 17, the second hinge rod 17 is hingedly connected with the first hinge rod 14, and the hinge points of the first hinge rod 14 and the second hinge rod 17 are arranged at the center of both.

[0034] The rear mounting upper beam 20 is horizontally fixedly arranged on the upper end of the sliding rod 12 along the left-right direction of the loader, the rear mounting upper beam 20 is provided with an adjusting cylinder 21 along the extension direction thereof, a through slot 22 is arranged through the rear mounting upper beam 20 below the stroke end of the adjusting cylinder 21, the first hinge rod 14 is arranged in the through slot 22, the first hinge rod 14 is hingedly connected with the stroke end of the adjusting cylinder 21, and the second hinge rod 17 is hingedly connected with the lower end of the rear mounting upper beam 20 away from the through slot 22.

[0035] The lifting seat 13 is hingedly provided with a hinge seat 30, and the hinge shafts of both are arranged along the left-right direction; the front part of the hinge seat 30 is hingedly provided with a steering cylinder 40, the front part of the steering cylinder 40 is hingedly connected with the front mounting beam 50, and the hinge shafts of the three are arranged along the up-down direction.

[0036] The lifting seat 13 is hingedly provided with a hinge seat 30, and the hinge shafts of both are arranged along the left-right direction; the front part of the hinge seat 30 is hingedly provided with a steering cylinder 40, the front part of the steering cylinder 40 is hingedly connected with the front mounting beam 50, and the hinge shafts of the three are arranged along the up-down direction.

[0037] The center axis of the steering cylinder 40 is arranged to deviate from the central axis of the front-rear direction of the loader, so that the front frame and the rear frame can be hinged to rotate to achieve the steering purpose. The hinge seat 30 is arranged on the lifting seat 13 away from the sliding groove 15, so that the steering cylinder 40 will not damage the lifting seat 13 during operation.

[0038] According to the specific structure of the adjustable steering device of the loader in one of the above embodiments, the adjustment process thereof is further described as follows:

[0039] The height position of the lifting seat 13 is adjusted by the adjusting cylinder 21.

[0040] When the steering cylinder 40 is in a horizontal state, the stroke end of the steering cylinder 40 directly acts on the front frame and the rear frame when it is extended and retracted, that is, L=ΔL.

[0041] When the adjusting cylinder 21 is in an inclined state, the stroke end of the steering cylinder 40 indirectly acts on the front frame and the rear frame when it is extended and retracted, that is, L=ΔL·cosα.

[0042] Wherein, L is the acting distance on the front frame and the rear frame.

[0043] ΔL is the stroke distance of the steering cylinder 40.

[0044] α is the inclination angle between the adjusting cylinder 21 and the horizontal plane.

[0045] Therefore, by adjusting the height position of the lifting seat 13, the vector distance of the steering cylinder 40 acting on the front frame and the rear frame is changed.

[0046] In summary, the above is only a preferred embodiment of the present application, and is not intended to limit the scope of the present application. Through the above description, relevant personnel can make various changes and modifications without deviating from the technical idea of the present application. The technical scope of the present application is not limited to the content in the specification. Any equivalent changes and modifications of shape, structure, features and spirit within the scope of the present application shall be included in the scope of the claims of the present application.

Claims

1. An adjustable steering device of a loader, arranged between a front frame and a rear frame of the loader, the front frame and the rear frame being hingedly connected, characterized in that: it comprises: a rear mounting lower beam (10) and a rear mounting upper beam (20) fixedly arranged on the rear frame, a lifting seat (13) movably arranged between the rear mounting lower beam (10) and the rear mounting upper beam (20), and a steering cylinder (40) arranged on the lifting seat (13); a front mounting beam (50) hingedly arranged on the front frame, the front mounting beam (50) being hingedly connected with the steering cylinder (40); the vector distance of the steering cylinder (40) acting on the front frame and the rear frame is changed by adjusting the height position of the lifting seat (13).

2. The adjustable steering device of the loader according to claim 1, characterized in that: the rear mounting lower beam (10) is arranged directly below the rear mounting upper beam (20).

3. The adjustable steering device of the loader according to claim 2, characterized in that: the rear mounting lower beam (10) is arranged transversely along the left-right direction of the loader, symmetrically limiting seats (11) are fixedly arranged on the left and right sides of the upper end surface of the rear mounting lower beam (10), and slide rods (12) are arranged upwardly on the limiting seats (11).

4. The adjustable steering device of the loader according to claim 3, characterized in that: the lifting seat (13) is slidingly clamped on the slide rods (12).

5. The adjustable steering device of the loader according to claim 4, characterized in that: the rear mounting upper beam (20) is fixedly arranged on the upper end of the slide rods (12).

6. The adjustable steering device of the loader according to claim 5, characterized in that: the lifting seat (13) is respectively provided with a sliding groove (15) and a first hinged rod (14) on the left and right sides thereof, the first hinged rod (14) is hingedly connected with the lifting seat (13), a sliding block (16) is slidingly arranged in the sliding groove (15), a second hinged rod (17) is hingedly arranged on the sliding block (16), and the second hinged rod (17) is hingedly connected with the first hinged rod (14).

7. The adjustable steering device of the loader according to claim 6, characterized in that: the hinged points of the first hinged rod (14) and the second hinged rod (17) are arranged at the center of the two rods.

8. The adjustable steering device of the loader according to claim 7, characterized in that: the rear mounting upper beam (20) is arranged transversely along the left-right direction of the loader, an adjusting cylinder (21) is arranged on the rear mounting upper beam (20) along the extending direction thereof, a through groove (22) is arranged through the rear mounting upper beam (20) below the stroke end of the adjusting cylinder (21), the first hinged rod (14) is arranged in the through groove (22), and the first hinged rod (14) is hingedly connected with the stroke end of the adjusting cylinder (21).

9. The adjustable steering device of the loader according to claim 8, characterized in that: the second hinged rod (17) is hingedly connected with the lower end of the rear mounting upper beam (20) away from the through groove (22).

10. The adjustable steering apparatus of a loader according to claim 9, characterized in that: a hinged seat (30) is arranged on the lifting seat (13) and the hinged shafts of the two are arranged along the left-right direction; the front and rear ends of the steering cylinder (40) are respectively hinged with the front mounting beam (50) and the hinged seat (30), and the hinged shafts of the three are arranged along the up-down direction.

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