Support leg structure and engineering machine

Abstract

The application provides a supporting leg structure and an engineering machine, and relates to the technical field of engineering machines.The supporting leg structure comprises a first supporting side plate, a second supporting side plate which is arranged opposite to the first supporting side plate, a bottom plate, an intermediate vertical plate which is arranged between the first supporting side plate and the second supporting side plate and is connected with the bottom plate, a first lower plate, a first upper plate, a second lower plate and a second upper plate.The first lower plate and the intermediate vertical plate form a first included angle, the first upper plate and the intermediate vertical plate form a second included angle, the second lower plate and the intermediate vertical plate form a third included angle, and the second upper plate and the intermediate vertical plate form a fourth included angle.The first included angle, the second included angle, the third included angle and the fourth included angle are all greater than or equal to 15°.According to the technical scheme, the intermediate vertical plate and the two outer side plates of the supporting leg have an inclination angle, the goods can slide down conveniently, the sliding amount of the goods can be increased, and the goods can be stacked less.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of engineering machinery, and in particular to a supporting leg structure and engineering machinery. BACKGROUND

[0002] At present, the cantilever type heading machine is widely applied in coal mines, non-coal mines and engineering tunnel construction, and the rear supporting part of the cantilever type heading machine is supported on the ground during work to stabilize the equipment body. Since the position is close to the dropping point, the supporting leg of the rear supporting part is often buried by goods of the dropping point. When the supporting oil cylinder is extended and retracted, the closed cavity is formed between the head and the bottom of the supporting leg, so that the goods between the supporting oil cylinder and the supporting leg are difficult to discharge. When the supporting oil cylinder is retracted, the goods invade the sealing of the supporting oil cylinder, which leads to the failure of the sealing of the supporting oil cylinder after a long time, and reduces the attendance rate of the cantilever type heading machine. The existing technology has the following problems: the upper cover plate of the supporting leg is formed by bending, but the bending difficulty increases with the increase of the plate thickness, and the plate is a special-shaped part, which further increases the bending difficulty. The closed cavity is formed between the supporting leg and the supporting oil cylinder, and the goods cannot be quickly discharged when the supporting oil cylinder is retracted, which leads to the invasion and damage of the goods to the sealing of the supporting oil cylinder. SUMMARY

[0003] Embodiments according to the present application aim to at least improve one of the technical problems existing in the prior art or related art.

[0004] Therefore, one purpose of embodiments according to the present application is to provide a supporting leg structure.

[0005] Another purpose of embodiments according to the present application is to provide an engineering machinery.

[0006] To achieve the above object, according to a first aspect of the present application, a supporting leg structure is provided, comprising: a first supporting side plate; a second supporting side plate, oppositely arranged with the first supporting side plate; a bottom plate, arranged between the first supporting side plate and the second supporting side plate, and connected with the first supporting side plate and the second supporting side plate respectively; an intermediate vertical plate, arranged between the first supporting side plate and the second supporting side plate, and connected with the bottom plate; a first lower plate, one end of the first lower plate connected with the bottom plate, and two sides of the first lower plate connected with the first supporting side plate and the intermediate vertical plate respectively; a first upper plate, one end of the first upper plate connected with the end of the first lower plate away from the bottom plate, and two sides of the first upper plate connected with the first supporting side plate and the intermediate vertical plate respectively; a second lower plate, one end of the second lower plate connected with the bottom plate, and two sides of the second lower plate connected with the second supporting side plate and the intermediate vertical plate respectively; a second upper plate, one end of the second upper plate connected with the end of the second lower plate away from the bottom plate, and two sides of the second upper plate connected with the second supporting side plate and the intermediate vertical plate respectively; a first included angle formed between the first lower plate and the intermediate vertical plate, a second included angle formed between the first upper plate and the intermediate vertical plate, a third included angle formed between the second lower plate and the intermediate vertical plate, and a fourth included angle formed between the second upper plate and the intermediate vertical plate, wherein the first included angle, the second included angle, the third included angle and the fourth included angle are all greater than or equal to 15°.

[0007] According to the supporting leg structure provided by the present application, the supporting leg structure comprises a first supporting side plate, a second supporting side plate, a bottom plate, an intermediate vertical plate, a first lower plate, a first upper plate, a second lower plate and a second upper plate. The second supporting side plate is oppositely arranged with the first supporting side plate. The bottom plate is arranged between the first supporting side plate and the second supporting side plate, and connected with the first supporting side plate and the second supporting side plate respectively. The intermediate vertical plate is arranged between the first supporting side plate and the second supporting side plate, and connected with the bottom plate. The intermediate vertical plate arranged in the supporting leg can improve the strength and reliability of the supporting leg structure. The first included angle is formed between the first lower plate and the intermediate vertical plate, the second included angle is formed between the first upper plate and the intermediate vertical plate, the third included angle is formed between the second lower plate and the intermediate vertical plate, and the fourth included angle is formed between the second upper plate and the intermediate vertical plate. The first included angle, the second included angle, the third included angle and the fourth included angle are all greater than or equal to 15°, which is beneficial for the goods to slide off, can improve the sliding amount of the goods, and reduce the accumulation of the goods.

[0008] In addition, the technical solution provided by the present application can also have the following additional technical features:

[0009] In some technical solutions, the supporting leg structure further comprises a reinforcing plate, two ends of the reinforcing plate connected with the first end of the first supporting side plate and the first end of the second supporting side plate respectively, and the reinforcing plate has a gap with the bottom plate.

[0010] In the technical solution, the supporting leg structure further comprises a reinforcing plate, two ends of the reinforcing plate are connected with the first end of the first supporting side plate and the first end of the second supporting side plate respectively, and a gap is formed between the reinforcing plate and the bottom plate. By increasing the distance between the reinforcing plate and the bottom plate, the closed cavity of the supporting leg and the supporting oil cylinder is damaged, so that the goods can be smoothly discharged when the supporting oil cylinder is retracted.

[0011] In some technical solutions, the supporting leg structure further comprises: a first ear plate arranged at the first end of the first supporting side plate and located on the side of the first supporting side plate close to the second supporting side plate.

[0012] In the technical solution, the supporting leg structure further comprises a first ear plate arranged at the first end of the first supporting side plate and located on the side of the first supporting side plate close to the second supporting side plate.

[0013] In some technical solutions, the supporting leg structure further comprises a second ear plate arranged at the second end of the first supporting side plate and located on the side of the first supporting side plate close to the second supporting side plate.

[0014] In the technical solution, the supporting leg structure further comprises a second ear plate arranged at the second end of the first supporting side plate and located on the side of the first supporting side plate close to the second supporting side plate.

[0015] In some technical solutions, the supporting leg structure further comprises: a back plate, one end of which is connected with the bottom plate and the other end of which is connected with the second ear plate.

[0016] In the technical solution, the supporting leg structure further comprises a back plate, one end of which is connected with the bottom plate and the other end of which is connected with the second ear plate.

[0017] In some technical solutions, the first supporting side plate is provided with a first discharge hole between the reinforcing plate and the first bottom plate, and the second supporting side plate is provided with a second discharge hole between the reinforcing plate and the second bottom plate.

[0018] In the technical solution, the first supporting side plate is provided with a first discharge hole between the reinforcing plate and the first bottom plate, and the second supporting side plate is provided with a second discharge hole between the reinforcing plate and the second bottom plate. By providing discharge holes on both sides of the supporting leg, the goods can be smoothly discharged through the discharge holes and the discharge port when the supporting oil cylinder is retracted or extended, avoiding the damage of the goods to the sealing of the supporting oil cylinder.

[0019] In some technical solutions, the first discharge hole is long strip-shaped or circular, and / or the second discharge hole is long strip-shaped or circular.

[0020] In the technical solution, the first discharge hole is long strip-shaped or circular, and the second discharge hole is long strip-shaped or circular.

[0021] In some embodiments, the intermediate vertical plate is welded to the bottom plate.

[0022] In some embodiments, the intermediate vertical plate is welded to the bottom plate.

[0023] In some embodiments, the first lower plate and the first upper plate are respectively welded to the first supporting side plate and the intermediate vertical plate; and / or the second lower plate and the second upper plate are respectively welded to the second supporting side plate and the intermediate vertical plate.

[0024] In some embodiments, the first lower plate and the first upper plate are respectively welded to the first supporting side plate and the intermediate vertical plate; and / or the second lower plate and the second upper plate are respectively welded to the second supporting side plate and the intermediate vertical plate.

[0025] According to the second aspect of the present application, an engineering machine is provided, comprising the supporting leg structure according to any one of the first aspect of the present application.

[0026] According to the second aspect of the present application, an engineering machine is provided, comprising the supporting leg structure according to any one of the first aspect of the present application.

[0027] Additional aspects and advantages of embodiments according to the present application will become apparent from the following description with reference to the drawings. BRIEF DESCRIPTION OF DRAWINGS

[0028] Figure 1 is a perspective view of a supporting leg structure according to an embodiment of the present application;

[0029] Figure 2 is a perspective view of a supporting leg structure according to an embodiment of the present application;

[0030] Figure 3 is a perspective view of a supporting leg structure according to an embodiment of the present application;

[0031] Figure 4 is a perspective view of a supporting leg structure according to an embodiment of the present application;

[0032] Figure 5 is a perspective view of a supporting leg structure according to an embodiment of the present application;

[0033] Figure 6is a top view structural schematic diagram of a supporting leg structure according to an embodiment provided in the present application.

[0034] wherein, Figures 1 to 6 The correspondence between the reference signs in the drawings and the component names is as follows:

[0035] 10: supporting leg structure; 110: first supporting side plate; 112: first discharging hole; 120: second supporting side plate; 122: second discharging hole; 130: bottom plate; 140: middle vertical plate; 150: first lower plate; 160: first upper plate; 170: second lower plate; 180: second upper plate; 190: reinforcing plate; 210: first ear plate; 220: second ear plate; 230: back plate. DETAILED DESCRIPTION

[0036] In order to make the above-mentioned purposes, features and advantages of the embodiments according to the present application more clearly understood, the embodiments according to the present application are further described in detail below with reference to the drawings and specific embodiments. It should be noted that the features of the embodiments according to the present application can be combined with each other without conflict.

[0037] In the following description, many specific details are set forth in order to provide a thorough understanding of the embodiments according to the present application, but the embodiments according to the present application can also be implemented in other ways different from those described herein, therefore, the scope of protection provided by the embodiments according to the present application is not limited by the specific embodiments disclosed below.

[0038] The embodiments according to the present application are described below with reference to the drawings. Figures 1 to 6 Some embodiments provided in the present application are described.

[0039] As Figure 1 , Figure 2 and Figure 3As shown, the support leg structure 10 according to the embodiment of the present application comprises a first support side plate 110, a second support side plate 120, a bottom plate 130, an intermediate vertical plate 140, a first lower plate 150, a first upper plate 160, a second lower plate 170, and a second upper plate 180. Specifically, the second support side plate 120 is arranged opposite to the first support side plate 110. The bottom plate 130 is arranged between the first support side plate 110 and the second support side plate 120 and connects the first support side plate 110 and the second support side plate 120, respectively. The intermediate vertical plate 140 is arranged between the first support side plate 110 and the second support side plate 120 and connected to the bottom plate 130. One end of the first lower plate 150 is connected to the bottom plate 130, and the two sides of the first lower plate 150 are connected to the first support side plate 110 and the intermediate vertical plate 140, respectively. One end of the first upper plate 160 is connected to the end of the first lower plate 150 away from the bottom plate 130, and the two sides of the first upper plate 160 are connected to the first support side plate 110 and the intermediate vertical plate 140, respectively. One end of the second lower plate 170 is connected to the bottom plate 130, and the two sides of the second lower plate 170 are connected to the second support side plate 120 and the intermediate vertical plate 140, respectively. One end of the second upper plate 180 is connected to the end of the second lower plate 170 away from the bottom plate 130, and the two sides of the second upper plate 180 are connected to the second support side plate 120 and the intermediate vertical plate 140, respectively. The first lower plate 150 and the intermediate vertical plate 140 form a first included angle, the first upper plate 160 and the intermediate vertical plate 140 form a second included angle, the second lower plate 170 and the intermediate vertical plate 140 form a third included angle, and the second upper plate 180 and the intermediate vertical plate 140 form a fourth included angle, and the first included angle, the second included angle, the third included angle, and the fourth included angle are all greater than or equal to 15°.

[0040] According to the support leg structure 10 provided by the embodiment, the support leg structure 10 comprises a first support side plate 110, a second support side plate 120, a bottom plate 130, an intermediate vertical plate 140, a first lower plate 150, a first upper plate 160, a second lower plate 170, and a second upper plate 180. The second support side plate 120 is arranged opposite to the first support side plate 110. The bottom plate 130 is arranged between the first support side plate 110 and the second support side plate 120 and connects the first support side plate 110 and the second support side plate 120, respectively. The intermediate vertical plate 140 is arranged between the first support side plate 110 and the second support side plate 120 and connected to the bottom plate 130. The intermediate vertical plate 140 arranged in the support leg can improve the strength and reliability of the support leg structure 10. The first lower plate 150 and the intermediate vertical plate 140 form a first included angle, the first upper plate 160 and the intermediate vertical plate 140 form a second included angle, the second lower plate 170 and the intermediate vertical plate 140 form a third included angle, and the second upper plate 180 and the intermediate vertical plate 140 form a fourth included angle, and the first included angle, the second included angle, the third included angle, and the fourth included angle are all greater than or equal to 15°, which facilitates the sliding of the goods, improves the sliding amount of the goods, and reduces the accumulation of the goods.

[0041] like Figure 4 As shown, in some embodiments, the support leg structure 10 optionally further includes a reinforcing plate 190. The two ends of the reinforcing plate 190 are respectively connected to the first end of the first supporting side panel 110 and the first end of the second supporting side panel 120, and a gap is defined between the reinforcing plate 190 and the bottom plate 130. By increasing the distance between the reinforcing plate 190 and the bottom plate 130, the closed cavity between the support leg and the supporting cylinder is broken, allowing cargo to be discharged smoothly even when the supporting cylinder is retracted.

[0042] In some embodiments, optionally, the supporting leg structure 10 further includes a first ear plate 210 , which is provided at the first end of the first supporting side plate 110 and located on the side of the first supporting side plate 110 close to the second supporting side plate 120 , and the first ear plate 210 is used for the rotation of the supporting leg structure 10 .

[0043] In some embodiments, optionally, the supporting leg structure 10 further includes a second ear plate 220, which is provided at the second end of the first supporting side plate 110 and located on the side of the first supporting side plate 110 close to the second supporting side plate 120, and the second ear plate 220 is used for the rotation of the supporting leg structure 10 relative to the body.

[0044] In some embodiments, optionally, the support leg structure 10 further includes a back plate 230 , one end of the back plate 230 is connected to the bottom plate 130 , and the other end of the back plate 230 is connected to the second ear plate 220 .

[0045] In some embodiments, the first support side plate 110 optionally includes a first discharge hole 112, located between the reinforcement plate 190 and the first lower plate 150. The second support side plate 120 includes a second discharge hole 122, located between the reinforcement plate 190 and the second lower plate 170. By providing discharge holes on both side plates of the support legs, cargo can be smoothly discharged through the discharge holes and discharge port when the support cylinder is retracted or extended, preventing cargo from damaging the support cylinder seal.

[0046] In some embodiments, optionally, the first discharge hole 112 is in the shape of an elongated strip or a circle. The second discharge hole 122 is in the shape of an elongated strip or a circle.

[0047] The middle vertical plate 140 is welded to the bottom plate 130. The supporting legs adopt a tailor-welded structure, which can reduce production difficulty and cost.

[0048] In some embodiments, the first lower plate 150 and the first upper plate 160 are optionally welded to the first supporting side plate 110 and the middle vertical plate 140, respectively. The second lower plate 170 and the second upper plate 180 are welded to the second supporting side plate 120 and the middle vertical plate 140, respectively. By adopting a tailor-welded structure, the manufacturing process is simple, the cost is low, and the structure is reasonable, safe, and reliable.

[0049] According to the embodiment of the present application, an engineering machine is provided, which comprises the support leg structure 10 according to any of the above embodiments.

[0050] According to the embodiment of the present application, an engineering machine is provided, which comprises the support leg structure 10 according to any of the above embodiments, thus having all the advantages of the support leg structure 10 according to any of the above embodiments, which will not be repeated here. The engineering machine comprises a roadheader.

[0051] As shown in Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 , according to the support leg structure 10 of one specific embodiment of the present application, the middle part of the support leg has a vertical rib, the upper part and the front part are covered with a connecting rib plate, and the rib plate has an inclined angle with the two outer side plates of the support leg, facilitating the sliding of goods and avoiding the accumulation of goods; the support leg adopts a welding structure, which is simple in manufacturing process, low in cost, reasonable in structure, safe and reliable. The two side plates of the support leg are provided with unloading holes, and the distance between the reinforcing plate 190 and the bottom plate 130 is increased, thereby destroying the closed cavity of the support leg and the support oil cylinder, so that the goods can be smoothly discharged when the support oil cylinder is retracted.

[0052] Specifically, the main structure of the support leg comprises a first support side plate 110, a second support side plate 120, a bottom plate 130, an intermediate vertical plate 140, a first lower plate 150, a first upper plate 160, a second lower plate 170, a reinforcing plate 190, a first ear plate 210, a second ear plate 220, a back plate 230 and a second upper plate 180.

[0053] The intermediate vertical plate 140 is located at the middle position of the support leg and is welded together with the bottom plate 130, the first lower plate 150, the first upper plate 160, the second lower plate 170 and the second upper plate 180 are respectively welded with the intermediate vertical plate 140 and the first support side plate 110 and the second support side plate 120, and the first lower plate 150, the first upper plate 160, the second lower plate 170 and the second upper plate 180 have an angle with the intermediate vertical plate 140 of not less than 15°.

[0054] In this embodiment, the first lower plate 150, the first upper plate 160, the second lower plate 170 and the second upper plate 180 are all separate plates, which can be replaced in the following two ways.

[0055] The first lower plate 150 and the first upper plate 160 are integrated into one bent plate, and the second lower plate 170 and the second upper plate 180 are integrated into one bent plate;

[0056] The first lower plate 150, the first upper plate 160, the second lower plate 170 and the second upper plate 180 are replaced by multiple steel plates by tack welding;

[0057] The discharge holes of the first supporting side plate 110 and the second supporting side plate 120 can be long strip-shaped or circular.

[0058] The inclination angle of the first lower plate 150, the first upper plate 160, the second lower plate 170, and the second upper plate 180 with the middle vertical plate 140 is lower than 15°.

[0059] The reinforcing plate 190 can be welded with the bottom plate 130 by modifying the shape.

[0060] In summary, the beneficial effects of the embodiments of the present application are:

[0061] 1. The first lower plate, the first upper plate, the second lower plate, and the second upper plate are welded with the middle vertical plate at an inclination angle not lower than 15°, the inclination angle is convenient to adjust, the goods sliding amount can be improved, and the goods stacking is reduced.

[0062] 2. The supporting leg adopts a tailor-welded structure, which reduces the production difficulty and cost.

[0063] 3. The middle vertical plate arranged in the supporting leg can improve the structural strength and reliability of the supporting leg.

[0064] 4. The first supporting side plate and the second supporting side plate are both provided with discharge holes, and the reinforcing plate and the bottom plate are left with discharge openings, so that the goods can be smoothly discharged through the discharge holes and the discharge openings when the supporting oil cylinder is retracted and extended, and the sealing of the supporting oil cylinder is avoided from being damaged by the goods.

[0065] In the embodiments according to the present application, the terms "first", "second", "third" are only used for the purpose of description, and cannot be understood as indicating or implying relative importance; the term "multiple" refers to two or more than two, unless otherwise explicitly limited. The terms "mounting", "connecting", "connecting", "fixing" and the like should be understood in a broad sense, for example, "connecting" can be fixed connection, or detachable connection, or integrally connected; "connected" can be directly connected, or indirectly connected through an intermediate medium. For those skilled in the art, the specific meaning of the above terms in the embodiments according to the present application can be understood according to the specific circumstances.

[0066] In the description of the embodiments according to the present application, it should be understood that the terms "upper", "lower", "left", "right", "front", "back" and the like indicate the orientation or positional relationship shown in the drawings, and are only used for the purpose of facilitating the description of the embodiments according to the present application and simplifying the description, and do not indicate or imply that the devices or units referred to must have a particular direction, be constructed and operated in a particular orientation, therefore, it cannot be understood as a limitation on the embodiments according to the present application.

[0067] In the description of the specification, the description of the terms "one embodiment", "some embodiments", "certain embodiments", etc. means that the particular feature, structure, material or characteristic being described in connection with the embodiment or example concerns at least one embodiment or example in accordance with the application. The illustrative appearance of the above-mentioned terms in various places in the specification are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials or characteristics can be combined in any suitable manner in one or more embodiments or examples.

[0068] The above merely describes the preferred embodiments of the application, and is not intended to limit the embodiments of the application. The embodiments of the application can have various modifications and changes for those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the embodiments of the application shall be included in the protection scope of the embodiments of the application.

Claims

1. A supporting leg structure, characterized in that: include: A first supporting side plate (110); a second supporting side plate (120), arranged opposite to the first supporting side plate (110); A bottom plate (130) is provided between the first supporting side plate (110) and the second supporting side plate (120), and is respectively connected to the first supporting side plate (110) and the second supporting side plate (120); an intermediate vertical plate (140) disposed between the first supporting side plate (110) and the second supporting side plate (120), and connected to the bottom plate (130); a first lower plate (150), one end of the first lower plate (150) being connected to the bottom plate (130), and two sides of the first lower plate (150) being respectively connected to the first supporting side plate (110) and the middle vertical plate (140); a first upper plate (160), one end of the first upper plate (160) being connected to an end of the first lower plate (150) away from the bottom plate (130), and two sides of the first upper plate (160) being respectively connected to the first supporting side plate (110) and the middle vertical plate (140); a second lower plate (170), one end of the second lower plate (170) being connected to the bottom plate (130), and two sides of the second lower plate (170) being respectively connected to the second supporting side plate (120) and the middle vertical plate (140); a second upper plate (180), one end of the second upper plate (180) being connected to an end of the second lower plate (170) away from the bottom plate (130), and two sides of the second upper plate (180) being respectively connected to the second supporting side plate (120) and the middle vertical plate (140); A first angle is formed between the first lower plate (150) and the middle vertical plate (140), a second angle is formed between the first upper plate (160) and the middle vertical plate (140), a third angle is formed between the second lower plate (170) and the middle vertical plate (140), and a fourth angle is formed between the second upper plate (180) and the middle vertical plate (140), wherein the first angle, the second angle, the third angle and the fourth angle are all greater than or equal to 15°; The supporting leg structure further comprises: a reinforcing plate (190), wherein two ends of the reinforcing plate (190) are respectively connected to the first end of the first supporting side plate (110) and the first end of the second supporting side plate (120), and a gap is provided between the reinforcing plate (190) and the bottom plate (130); A first discharge hole (112) is provided on the first supporting side plate (110), and the first discharge hole (112) is located between the reinforcing plate (190) and the first lower plate (150); A second discharge hole (122) is provided on the second supporting side plate (120), and the second discharge hole (122) is located between the reinforcing plate (190) and the second lower plate (170).

2. The support leg structure according to claim 1, characterized in that: Also includes: The first ear plate (210) is provided at a first end of the first supporting side plate (110) and is located on a side of the first supporting side plate (110) close to the second supporting side plate (120).

3. The support leg structure according to claim 2, characterized in that: Also includes: The second ear plate (220) is provided at the second end of the first supporting side plate (110) and is located on a side of the first supporting side plate (110) close to the second supporting side plate (120).

4. The support leg structure according to claim 3, characterized in that: Also includes: A back plate (230) is connected to the bottom plate (130) at one end and to the second ear plate (220) at the other end.

5. The support leg structure according to claim 1, characterized in that: The first discharge hole (112) is in the shape of an elongated strip or a circle; and / or The second discharge hole (122) is in the shape of an elongated strip or a circle.

6. The support leg structure according to any one of claims 1 to 5, characterized in that: The middle vertical plate (140) is connected to the bottom plate (130) by welding.

7. The support leg structure according to any one of claims 1 to 5, characterized in that: The first lower plate (150) and the first upper plate (160) are respectively welded to the first supporting side plate (110) and the middle vertical plate (140); and / or The second lower plate (170) and the second upper plate (180) are respectively welded to the second supporting side plate (120) and the middle vertical plate (140).

8. An engineering machine, characterized in that: include: The support leg structure according to any one of claims 1 to 7.

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