Driving seat for motor installation, track frame and excavator

Abstract

The utility model relates to the field of engineering machinery, and discloses a driving seat for motor installation, a track frame and an excavator. The driving seat comprises a vertical plate and is used for being vertically mounted on a track frame; the main plate is a vertical plate, is perpendicular to the plate surface of the vertical plate and transversely extends outwards; the first side plate and the second side plate are transverse plates arranged on the upper side and the lower side of the main plate respectively, and the first side plate and the second side plate are both connected with the vertical plate and the main plate; the rib plate is a vertical plate, the inner edge of the rib plate is connected with the vertical plate, the outer edge of the rib plate is connected with the main plate, and the upper end and the lower end of the rib plate are correspondingly connected with the first side plate and the second side plate respectively. The track frame comprises a motor and the driving seat for mounting the motor. The excavator comprises the crawler frame. According to the driving seat for motor installation, the crawler frame and the excavator, the stress condition of the driving seat under the action of the torque of the motor can be improved, the structural strength of the driving seat is improved, and the stress concentration condition is reduced.

Description

Technical Field

[0001] The present application belongs to the field of engineering machinery, and in particular, relates to a drive seat, a crawler frame and an excavator for mounting a motor. Background Art

[0002] As an important component of the excavator, the crawler frame provides support for the whole machine during the excavation operation, maintains the stability of the whole machine, and bears the load of the whole machine. The drive seat of the crawler frame directly acts on the motor and directly bears the torque output by the motor. In the current common drive seat structure, such as Figure 1 As shown, the main board 110 and the vertical board 120 are provided with reinforcing ribs 300 to enhance the structural strength. When the driving seat is subjected to the output torque of the motor, the stress concentration is more significant at the arcuate edges of the first side board 130 and the second side board 140, and there is a risk of structural fatigue cracking. Summary of the invention

[0003] The purpose of the present application is to provide a drive seat, crawler frame and excavator for motor installation, so as to improve the stress condition of the drive seat under the torque of the motor, improve the structural strength of the drive seat and reduce stress concentration.

[0004] To achieve the above objectives, the present application provides, on one hand, a drive seat for motor installation, the drive seat comprising:

[0005] A vertical plate, used for vertical installation on the crawler frame;

[0006] The main board is a vertical board with a motor mounting hole and extends outwards horizontally perpendicular to the board surface of the vertical board;

[0007] The first side plate and the second side plate are transverse plates respectively arranged on the upper and lower sides of the main plate, and the first side plate and the second side plate are both connected to the vertical plate and the main plate; and

[0008] The rib plate is a vertical plate, and the inner edge of the rib plate is connected to the vertical plate, the outer edge of the rib plate is connected to the main plate, and the upper and lower ends of the rib plate are respectively connected to the first side plate and the second side plate.

[0009] In some embodiments, a closed triangular prism cavity is formed between the main board, the vertical board, the first side board, the second side board and the rib board.

[0010] In some embodiments, the rib plate is made of steel having mechanical properties not lower than Q355D.

[0011] In some embodiments, the ribs may be distributed on both sides of the main board.

[0012] In some embodiments, the first side plate and the second side plate are both L-shaped plates with curved edges.

[0013] In some embodiments, a drive mount for motor mounting includes:

[0014] A bent plate is arranged around the motor mounting hole and one end of the bent plate is connected to the outer end of the first side plate, and the other end of the bent plate is connected to the outer end of the second side plate.

[0015] In some embodiments, the main board is a steel plate with a material mechanical property not lower than Q355D and a thickness not less than 100 mm.

[0016] The second aspect of the present application provides a crawler frame, which includes the above-mentioned drive seat for motor installation, one end of the motor passes through the motor installation hole of the drive seat and is fixed to the main board by bolts.

[0017] In some embodiments, the track frame includes a longitudinal beam body, and the vertical plates are mounted on ends of the longitudinal beam body.

[0018] A third aspect of the present application provides an excavator, which includes the above-mentioned crawler frame.

[0019] In the technical solution of the present application, the connection strength between the main board and the vertical board is strengthened by the rib plate. Compared with the connection method using reinforcing ribs in the prior art, the rib plate can obtain a larger contact area with the main board and the vertical board, and at the same time, the overall load-bearing effect of the rib plate is better, thereby improving the structural strength of the drive seat; in addition, after the upper and lower ends of the rib plate are respectively connected to the first side plate and the second side plate, the stress conditions of the first side plate and the second side plate can be improved, thereby reducing the stress concentration on the first side plate and the second side plate.

[0020] Other features and advantages of the embodiments of the present application will be described in detail in the subsequent detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The accompanying drawings are used to provide a further understanding of the embodiments of the present application and constitute a part of the specification. Together with the following specific embodiments, they are used to explain the embodiments of the present application, but do not constitute a limitation on the embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without creative work. In the drawings:

[0022] Figure 1 It is a structural schematic diagram of a drive seat for motor installation in the prior art;

[0023] Figure 2 It is a schematic structural diagram of a drive seat for motor installation according to a specific embodiment of the present application.

[0024] Description of Reference Numerals

[0025] C curved edge 140 second side panel

[0026] 110 Main board 150 Rib board

[0027] 111 Motor mounting hole 160 Bend plate

[0028] 120 vertical plate 210 longitudinal beam body

[0029] 130 First side plate 300 Reinforcement rib DETAILED DESCRIPTION

[0030] The specific implementation of the present application is described in detail below in conjunction with the accompanying drawings. It should be understood that the specific implementation described here is only used to illustrate and explain the present application, and is not used to limit the present application.

[0031] The drive seat, crawler frame and excavator for motor installation according to the present application will be described below with reference to the accompanying drawings.

[0032] It should be noted that in this application, unless otherwise stated, "lateral, vertical, front, and rear" generally refer to the directions shown in the accompanying drawings. When there is no reference to the accompanying drawings, "inside and outside" refer to the lateral inside and outside with the center of the crawler frame as a reference.

[0033] The present application discloses a novel drive seat for motor installation, such as Figure 2 As shown, the drive seat in a specific embodiment includes:

[0034] A vertical plate 120 is used for vertical installation on the crawler frame;

[0035] The main board 110 is a vertical board having a motor mounting hole 111 and extending outwardly perpendicular to the board surface of the vertical board 120;

[0036] The first side plate 130 and the second side plate 140 are transverse plates respectively disposed on the upper and lower sides of the main plate 110. The first side plate 130 and the second side plate 140 are both connected to the vertical plate 120 and the main plate 110; and

[0037] The rib plate 150 is a vertical plate, and the inner edge of the rib plate is connected to the vertical plate 120, and the outer edge of the rib plate is connected to the main plate 110. The upper and lower ends of the rib plate 150 are respectively connected to the first side plate 130 and the second side plate 140.

[0038] Specifically, Figure 2 The main board 110 can be vertically welded to the outside of the vertical board 120, and the first side board 130 and the second side board 140 located on the upper and lower sides of the main board 110 are also welded to the main board 110 and the vertical board 120 respectively. The rib plate 150 is welded to the vertical board 120 and the main board 110 through its inner edge and outer edge respectively. Figure 1In the prior art, the main board 110 and the vertical board 120 are connected by a reinforcing rib 300. The rib plate 150 has a larger support surface with the main board 110 and the vertical board 120. The support of the rib plate 150 can improve the stress of the main board 110 and the vertical board 120, thereby improving the structural strength of the drive seat. In addition, since the upper and lower ends of the rib plate 150 are also welded to the first side plate 130 and the second side plate 140 respectively, the stress of the first side plate 130 and the second side plate 140 can be improved by the support effect of the rib plate 150, thereby reducing the stress concentration on the first side plate 130 and the second side plate 140. Of course, the main board 110, the vertical board 120, the first side plate 130, the second side plate 140 and the rib plate 150 can also be connected by other means such as riveting, or even integrally formed.

[0039] In this embodiment, if Figure 2 As shown, a closed triangular prism cavity is formed between the main board 110, the vertical board 120, the first side board 130, the second side board 140 and the rib board 150. The vertical board 120, the main board 110, the first side board 130 and the second side board 140 together form a semi-closed cavity, and the rib board 150 is located in the closed cavity; the connection between the vertical board 120 and the main board 110, the connection between the vertical board 120 and the rib board 150, and the connection between the main board 110 and the rib board 150 respectively constitute the side edges of the triangular prism cavity, and the first side board 130 and the second side board 140 respectively constitute the upper and lower surfaces of the triangular prism cavity.

[0040] Specifically, with such arrangement, any two of the main board 110 , the vertical board 120 , the first side board 130 , and the second side board 140 can be mutually supported by the rib plate 150 , thereby improving the structural strength of the driving seat, and the structure is simple and easy to process.

[0041] Since any two of the main board 110, the vertical board 120, the first side board 130, and the second side board 140 need to support each other through the rib plate 150, the structural strength of the rib plate 150 has an important influence on the structural strength of the drive seat. Specifically, in this embodiment, the rib plate 150 is a steel material with a material mechanical property not lower than Q355D. When the rib plate 150 is Q355D material, its yield strength is not less than 355MPa and its tensile strength is not less than 450MPa, which is conducive to ensuring the welding connection effect between the rib plate 150 and the main board 110, the vertical board 120, the first side board 130, and the second side board 140.

[0042] In this embodiment, the ribs 150 may be distributed on both sides of the main board 110 .

[0043] Specifically, see Figure 2The rib plate 150 is disposed on the front side of the main board 110. Of course, the rib plate 150 can also be disposed on both the front and rear sides of the main board 110 to further improve the structural strength of the drive seat.

[0044] In this embodiment, if Figure 2 As shown, the first side plate 130 and the second side plate 140 are both L-shaped plates with arc-shaped edges C.

[0045] Specifically, the arrangement of the L-shaped plate can reduce the volume of the first side plate 130 and the second side plate 140, and only retain the main force-bearing parts, namely, the main contact parts of the first side plate 130 and the second side plate 140 with the main board 110 (the transverse section of the L-shaped plate), and the main contact parts of the first side plate 130 and the second side plate 140 with the vertical plate 120 (the front-to-back section of the L-shaped plate). In addition, in order to reduce the stress concentration on the first side plate 130 and the second side plate 140, the structural mutation between the transverse section of the L-shaped plate and the front-to-back section of the L-shaped plate should be reduced. Therefore, the arrangement of the arc edge C can reduce the stress concentration in the recessed part of the L-shaped plate after the first side plate 130 and the second side plate 140 are subjected to force.

[0046] It should be noted that when the front and rear sections of the L-shaped plate and the rib plate 150 are both arranged on the same side of the main board 110, at this time, because the rib plate 150 is arranged at a position closer to the stress concentration point of the drive seat, the rib plate 150 can better achieve mutual support between any two of the main board 110, the vertical plate 120, the first side plate 130, and the second side plate 140, thereby more effectively strengthening the structural strength of the drive seat and reducing stress concentration.

[0047] In this embodiment, if Figure 2 As shown, the drive base for motor mounting includes:

[0048] The bent plate 160 is disposed around the motor mounting hole 111 and has one end connected to the outer end of the first side plate 130 and the other end connected to the outer end of the second side plate 140 .

[0049] Specifically, see Figure 2 The two ends of the bent plate 160 are respectively welded to the first side plate 130 and the second side plate 140, forming a receiving portion with the first side plate 130 and the second side plate 140. In this way, the receiving portion can receive the motor, so that the first side plate 130, the second side plate 140 and the bent plate 160 can jointly reduce the impact of external collision (such as splashing sand and gravel) on the motor; and can also reduce the situation where pollutants such as dust invade the motor. The processing method is simple and practical.

[0050] Since the mainboard 110 is the installation part of the motor, directly interacts with the motor and bears the torque output by the motor, the structural strength of the mainboard 110 has an important influence on the structural strength of the drive seat. Specifically, in this embodiment, the mainboard 110 is a steel plate with a material mechanical property not lower than Q355D and a thickness not less than 100mm. Such a configuration can save materials and meet the structural strength requirements of the drive seat.

[0051] The second aspect of the present application discloses a crawler frame, such as Figure 2 As shown, a crawler frame in a specific embodiment includes the above-mentioned drive seat for motor installation, and one end of the motor passes through the motor installation hole 111 of the drive seat and is fixed to the main board 110 by bolts.

[0052] Specifically, with such arrangement, since the drive seat of the present application has higher structural strength and reduces stress concentration on the first side plate 130 and the second side plate 140, the possibility of structural cracking due to structural fatigue is also lower, thereby improving the reliability of the track frame.

[0053] In this embodiment, if Figure 2 As shown, the crawler frame includes a longitudinal beam body 210 , and the vertical plate 120 is installed at the end of the longitudinal beam body 210 .

[0054] The crawler can be installed on the longitudinal beam body 210 through a plurality of sprocket wheels on the longitudinal beam body 210, and the crawler is driven by a motor disposed at the end of the longitudinal beam body 210 to work on the longitudinal beam body 210. The manner in which the crawler is installed on the crawler bracket through the sprocket wheels and the coupling relationship between the motor and the crawler are well known to those skilled in the art and will not be described in detail herein.

[0055] The third aspect of the present application discloses an excavator. In a specific embodiment, the excavator includes the above-mentioned crawler frame.

[0056] Since the stress condition of the driving seat is improved and the stress concentration is reduced, the reliability of the crawler frame can be improved, thereby improving the reliability of the excavator of the present application under high-power and long-term operation.

[0057] In the description of the present application, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of the present application, "plurality" means at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0058] In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or communication with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0059] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

Claims

1. A drive seat for motor mounting, characterized in that: The drive seat comprises: A vertical plate (120) is used for vertically mounting on the crawler frame; A main board (110), the main board (110) being a vertical board provided with a motor mounting hole (111) and extending outwardly in a horizontal direction perpendicular to the board surface of the vertical board (120); A first side plate (130) and a second side plate (140) are transverse plates respectively arranged on the upper and lower sides of the main plate (110), and the first side plate (130) and the second side plate (140) are both connected to the vertical plate (120) and the main plate (110); and A rib plate (150), wherein the rib plate (150) is a vertical plate and the inner edge of the rib plate is connected to the vertical plate (120), and the outer edge of the rib plate is connected to the main plate (110); the upper and lower ends of the rib plate (150) are respectively connected to the first side plate (130) and the second side plate (140).

2. The drive seat for motor installation according to claim 1, characterized in that: A closed triangular prism cavity is formed between the main plate (110), the vertical plate (120), the first side plate (130), the second side plate (140) and the rib plate (150).

3. The drive seat for motor installation according to claim 1, characterized in that: The rib plate (150) is made of steel with mechanical properties not lower than Q355D.

4. The drive seat for motor installation according to claim 1, characterized in that: The rib plates (150) may be distributed on both sides of the main plate (110).

5. The drive seat for motor installation according to any one of claims 1 to 4, characterized in that: The first side plate (130) and the second side plate (140) are both L-shaped plates with curved edges (C).

6. The drive seat for motor installation according to claim 5, characterized in that: The drive seat for motor installation includes: A bent plate (160) is arranged around the motor mounting hole (111) and has one end connected to the outer end of the first side plate (130) and the other end connected to the outer end of the second side plate (140).

7. The drive seat for motor installation according to claim 1, characterized in that: The main board (110) is a steel plate with a material mechanical property not lower than Q355D and a thickness not less than 100 mm.

8. A crawler frame, including a motor, characterized in that: The crawler frame comprises a drive seat for motor installation according to any one of claims 1 to 7, one end of the motor passes through the motor installation hole (111) of the drive seat and is fixed to the main board (110) by bolts.

9. The crawler frame according to claim 8, characterized in that: The crawler frame comprises a longitudinal beam body (210), and the vertical plate (120) is installed on the end of the longitudinal beam body (210).

10. An excavator, characterized in that The excavator comprises a crawler frame according to claim 8 or claim 9.

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