Turret device and trolley chassis

Abstract

The turret device comprises a turret and a hinge seat, the first end of the hinge seat is eccentrically connected to the bottom of the turret, and the second end of the hinge seat is provided with a connecting lug plate extending in the direction away from the center of the turret. The trolley chassis comprises a frame, a rotary support, a rotary oil cylinder and a turret device; the turret device is rotationally connected to the frame through a rotary support, and a hinge seat on the turret device is located in the frame or below the frame. The first end of the rotary oil cylinder is hinged to the frame, and the second end of the rotary oil cylinder is hinged to the connecting lug plate on the hinge seat. The rotary driving device is applied to the field of engineering machinery, and the hinged seat is eccentrically connected to the bottom of the rotary tower, so that a shorter lug plate is kept on the premise that the hinged seat has a longer arm of force, and the problem of potential safety hazards caused by overlarge stress in the rotary driving process of the connecting lug plate is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of engineering machinery, in particular to a turret device and a trolley chassis. Background Art

[0002] In the construction machinery industry, the rotation of the boom often uses a slewing device such as a slewing tower. It is located on the chassis of the construction equipment. A hinged seat is set at the bottom of the slewing tower to connect the oil cylinder, and then the rotation of the slewing tower is controlled by the extension and contraction of the oil cylinder to achieve the angle adjustment of the boom to meet various construction needs.

[0003] However, in the prior art, the articulated seat is basically assembled at the bottom of the turret in a concentric manner. However, as the weight of the boom increases, in order to drive the boom to rotate under the action of limited driving force, the articulated seat needs to have a longer lever arm to provide sufficient driving torque for the turret. This longer lever arm needs to be achieved by setting a longer ear plate. In addition, in order to ensure that the articulated seat has a sufficient service life, when the weight of the boom increases, the turret and the articulated seat also need to be increased synchronously, so that the length of the ear plate is further lengthened, which not only increases the force on the ear plate, which is easy to cause safety hazards, but also requires a considerable installation space, resulting in restrictions on the structural layout under the chassis. Utility Model Content

[0004] In view of the deficiencies in the above-mentioned prior art, the utility model provides a turret device and a trolley chassis, which eccentrically connects the articulated seat to the bottom of the turret so that the articulated seat has a longer lever arm while maintaining a shorter ear plate, thereby avoiding safety hazards caused by excessive force on the connecting ear plate during the rotary drive process.

[0005] To achieve the above objectives, the utility model provides a turret device, including a turret and an articulated seat, wherein the first end of the articulated seat is eccentrically connected to the bottom of the turret, and the second end of the articulated seat is provided with a connecting ear plate extending away from the center of the turret.

[0006] In one embodiment, the hinged seat includes a connecting unit and a supporting assembly;

[0007] The connecting unit is eccentrically connected to the bottom of the turret;

[0008] The support assembly is a hollow box structure, a first end of the support assembly is connected to the connection unit, and the connection ear plate is arranged at the second end of the support assembly.

[0009] In one embodiment, the number of the connecting ear plates is two, the two connecting ear plates are connected to the second end of the supporting assembly in parallel and at intervals, and a first rib plate is fixedly provided between the two connecting ear plates.

[0010] In one embodiment, the hinge seat further includes a second rib plate connected between the connecting unit and the side of the first end of the supporting assembly.

[0011] In one embodiment, the support assembly includes at least one hollow sleeve.

[0012] In one embodiment, when the support assembly includes more than two hollow sleeves, each of the hollow sleeves is connected side by side at the bottom of the connection unit;

[0013] The support assembly also includes a first sealing plate and a second sealing plate, wherein the first sealing plate is fixedly connected to the first side of each hollow sleeve and the connecting unit, and the second sealing plate is fixedly connected to the second side of each hollow sleeve, the connecting unit, and the connecting ear plate.

[0014] In one embodiment, a hinge hole is provided at the other end of the connecting ear plate.

[0015] In one embodiment, a connection gap between the connection unit and the turret is covered with a weld.

[0016] In one of the embodiments, an eccentric positioning groove is provided at the bottom of the turret, and the connecting unit is fixedly connected to the turret after being embedded in the positioning groove.

[0017] In order to achieve the above object, the utility model also provides a trolley chassis, including a frame, a slewing support, a slewing cylinder and the above turret device;

[0018] The turret device is rotatably connected to the frame via the slewing support, and the hinge seat on the turret device is located inside the frame or below the frame;

[0019] The first end of the rotary oil cylinder is hinged to the vehicle frame, and the second end of the rotary oil cylinder is hinged to the connecting ear plate on the hinge seat.

[0020] Compared with the prior art, the utility model has the following beneficial technical effects:

[0021] 1. The utility model eccentrically connects the hinged seat to the bottom of the turret, so that the hinged seat has a longer force arm and the ear plate is kept shorter, thereby avoiding the potential safety hazard caused by excessive force on the connecting ear plate during the rotary drive process;

[0022] 2. In the preferred embodiment of the utility model, a plurality of hollow sleeves are used to form a support assembly, thereby increasing the lateral length of the support assembly, so that the support assembly has a stronger ability to resist torsional deformation;

[0023] 3. The articulated seat in the utility model has a more compact structure and occupies less space. When the turret device is connected to the frame, more space can be left inside or under the frame for arranging other structures. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0025] Figure 1 This is a front view of the turret device in Example 1 of the utility model;

[0026] Figure 2 It is a side view of the turret device in Example 1 of the utility model;

[0027] Figure 3 It is a cross-sectional view of the turret device in Example 1 of the utility model;

[0028] Figure 4 It is a first axonometric view of the hinged seat in Embodiment 1 of the present utility model;

[0029] Figure 5 It is a second axonometric view of the hinged seat in Embodiment 1 of the present utility model;

[0030] Figure 6 This is a cross-sectional view of the connection structure between the connection unit and the turntable in Example 1 of the utility model;

[0031] Figure 7 It is a partial axonometric view of the chassis of the trolley in Example 2 of the utility model;

[0032] Figure 8 It is a partial cross-sectional view of the chassis of the trolley in Example 2 of the utility model.

[0033] Figure numbers: connecting unit 1, assembly structure 101, supporting assembly 2, hollow sleeve 201, first closing plate 202, second closing plate 203, connecting ear plate 3, hinge hole 301, reinforcement ring 302, limit sleeve 303, first rib plate 4, second rib plate 5, turret 6, positioning groove 601, weld 602, pipe hole 603, bolt 7, nut 8, frame 9, slewing support 10, slewing cylinder 11, pin 12.

[0034] The realization of the purpose, functional features and advantages of the utility model will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0035] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0036] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back...) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0037] In addition, in the present invention, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0038] In the present invention, unless otherwise clearly specified and limited, the terms "connection", "fixation", etc. should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, a physical connection, or a wireless communication connection; it can be a direct connection, or an indirect connection through an intermediate medium, or 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 the present invention can be understood according to specific circumstances.

[0039] In addition, the technical solutions between the various embodiments of the present invention can be combined with each other, but it must be based on the fact that ordinary technicians in the field can implement it. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0040] Example 1

[0041] like Figures 1 to 3The figure shows a turret device disclosed in the present embodiment, which mainly includes a turret 6 and an articulated seat, wherein the first end of the articulated seat is eccentrically connected to the bottom of the turret 6, and the second end of the articulated seat is provided with a connecting ear plate 3 extending away from the center of the turret 6. The articulated seat is eccentrically arranged at the bottom of the turret 6, which means that the articulated seat and the turret 6 are not coaxial, that is, the distance between the hinge point of the oil cylinder on the connecting ear plate 3 and the rotation center of the turret 6 (that is, the length of the driving force arm) can be sufficiently large while the length of the connecting ear plate 3 can be effectively reduced, thereby avoiding the potential safety hazard caused by excessive force on the connecting ear plate 3 during the process of driving the turret 6 to rotate, and more space can be left inside or below the frame for the arrangement of other structures after the turret device is assembled on the frame.

[0042] refer to Figure 4 , Figure 5 The articulated seat includes a connecting unit 1 and a supporting assembly 2. An assembly structure 101 is provided on the connecting unit 1, which is used to eccentrically connect the connecting unit 1 to the bottom of the turret 6. The supporting assembly 2 is a hollow box structure, the first end of the supporting assembly 2 is connected to the connecting unit 1, and the connecting ear plate 3 is provided at the second end of the supporting assembly 2. By arranging the connecting ear plate 3 on the supporting assembly 2, the supporting assembly 2 and the connecting unit 1 are used as a connecting transfer between the connecting ear plate 3 and the turret 6, that is, the supporting assembly 2 is used as a part of the turret 6 rotation driving force arm, so that the length of the connecting ear plate 3 is further shortened. Among them, the supporting assembly 2 with a hollow box structure can make the supporting assembly 2 have a higher structural strength while maintaining a lower weight.

[0043] In this embodiment, there are two connecting ear plates 3, and the two connecting ear plates 3 are connected to the second end of the support assembly 2 in parallel and at intervals. Specifically, the first end of the connecting ear plate 3 is fixedly connected to the side of the second end of the support assembly 2 by welding, and the second end of the connecting ear plate 3 is provided with a hinge hole 301. Preferably, a reinforcing ring 302 is also welded at a position corresponding to the hinge hole 301 on the connecting ear plate 3 to improve the bearing capacity of the connecting ear plate 3. Further preferably, a limiting sleeve 303 coaxial with the hinge hole 301 is also welded at the bottom of the connecting ear plate 3 closer to the second end of the support assembly 2, and a pin hole is provided on the limiting sleeve 303 for fixing the pin shaft between the oil cylinder.

[0044] As a preferred embodiment, the hinge seat further includes a first rib plate 4. The first rib plate 4 is an arc-shaped structure, the upper and lower sides of the first rib plate 4 are respectively welded to the two connecting ear plates 3, and the left and right ends of the first rib plate 4 are respectively welded to the support assembly 2, thereby improving the connection structure strength of the connecting ear plate 3 on the support assembly 2.

[0045] As a preferred embodiment, the hinge seat further includes a second rib plate 5, the number of which is more than two, and the second rib plate 5 is connected between the bottom of the connection unit 1 and the side of the first end of the support assembly 2, thereby improving the strength of the connection structure between the connection unit 1 and the support assembly 2. When the number of the second rib plates 5 is two, the two second rib plates 5 are symmetrical along the hinge hole 301 on the connecting ear plate 3; when the number of the second rib plates 5 is more than two, each second rib plate 5 is distributed at intervals along the circumferential direction on the connection gap between the support assembly 2 and the connection unit 1.

[0046] In this embodiment, the support assembly 2 includes at least one hollow sleeve 201. When the support assembly 2 includes more than two hollow sleeves 201, each hollow sleeve 201 is welded side by side at the bottom of the connecting unit 1. At this time, the support assembly 2 also includes a first sealing plate 202 and a second sealing plate 203. The first sealing plate 202 is fixedly connected to the first side of each hollow sleeve 201 and the connecting unit 1 by welding, and the second sealing plate 203 is fixedly connected to the second side of each hollow sleeve 201, the connecting unit 1, and the connecting ear plate 3 located above by welding. By combining multiple hollow sleeves 201 with the first sealing plate 202 and the second sealing plate 203 to form a support assembly 2 with a hollow box structure, the support assembly 2 has a more compact structure, higher structural strength, and lighter weight. It is worth noting that although the support assembly 2 shown in the figure in this embodiment includes two hollow sleeves 201, in actual application, the number of hollow sleeves 201 can be appropriately increased or decreased according to the force of the hinge seat. For example, when the hinge seat has a higher load-bearing requirement, the number of hollow sleeves 201 can be increased to 3 to 5, thereby increasing the lateral length of the support assembly 2 and making the support assembly 2 more capable of resisting torsional deformation.

[0047] refer to Figure 6 , the assembly structure 101 on the connection unit 1 is a bolt hole, and the connection unit 1 is fixedly connected to the turret 6 by bolts 7 and nuts 8. Preferably, an eccentric positioning groove 601 is provided at the bottom of the turret 6, and the connection unit 1 is fixedly connected to the turret 6 by bolts 7 and nuts 8 after being inserted into the positioning groove 601, and the connection gap between the connection unit 1 and the turret 6 is covered with a weld 602, that is, the outer circle of the connection between the hinge seat and the turret 6 is welded, thereby ensuring the structural strength of the turret 6 and the hinge seat.

[0048] As a preferred embodiment, the connection unit 1 is a flange plate without holes, and a pipe hole 603 is provided at the bottom of the turret 6 adjacent to the connection unit 1 to facilitate the placement of hydraulic pipes, thereby improving the overall structural strength of the turret device and making it safer. Of course, the pipe hole 603 can also be provided on the connection unit 1 in a specific application process.

[0049] Example 2

[0050] like Figure 7 , Figure 8 The trolley chassis disclosed in this embodiment is shown, including a frame 9, a slewing support 10, a slewing cylinder 11 and a turret device in the embodiment. The slewing support 10 is arranged on the top of the frame 9, and the turret device is installed on the slewing support 10 to realize the rotation coordination between the turret device and the frame 9. At the same time, the hinge seat on the turret device is located inside the frame 9 or below the frame 9, the first end of the slewing cylinder 11 is hinged to the frame 9, and the second end of the slewing cylinder 11 is hinged to the connecting ear plate 3 on the hinge seat through the pin 12. The rotation process of the turret device on the frame 9 in this embodiment is: the hinge seat is pushed by the telescopic movement of the slewing cylinder 11, thereby driving the turret device to rotate on the slewing support 10.

[0051] The above description is only a preferred embodiment of the utility model, and does not limit the patent scope of the utility model. All equivalent structural changes made by using the contents of the utility model specification and drawings under the utility model concept, or directly / indirectly used in other related technical fields are included in the patent protection scope of the utility model.

Claims

1. A turret device, characterized in that: It comprises a turret and an articulated seat, wherein the first end of the articulated seat is eccentrically connected to the bottom of the turret, and the second end of the articulated seat is provided with a connecting ear plate extending away from the center of the turret.

2. The turret device according to claim 1, characterized in that: The articulated seat comprises a connecting unit and a supporting assembly; The connecting unit is eccentrically connected to the bottom of the turret; The support assembly is a hollow box structure, a first end of the support assembly is connected to the connection unit, and the connection ear plate is arranged at the second end of the support assembly.

3. The turret device according to claim 2, characterized in that: The number of the connecting ear plates is two, the two connecting ear plates are connected to the second end of the supporting assembly in parallel and at intervals, and a first rib plate is fixedly arranged between the two connecting ear plates.

4. The turret device according to claim 2, characterized in that: The hinge seat also includes a second rib plate connected between the connection unit and the side of the first end of the support assembly.

5. The turret device according to claim 2, 3 or 4, characterized in that: The support assembly includes at least one hollow sleeve.

6. The turret device according to claim 5, characterized in that: When the support assembly includes more than two hollow sleeves, each of the hollow sleeves is connected side by side at the bottom of the connection unit; The support assembly also includes a first sealing plate and a second sealing plate, wherein the first sealing plate is fixedly connected to the first side of each hollow sleeve and the connecting unit, and the second sealing plate is fixedly connected to the second side of each hollow sleeve, the connecting unit, and the connecting ear plate.

7. The turret device according to claim 1, 2, 3 or 4, characterized in that: The other end of the connecting ear plate is provided with a hinge hole.

8. The turret device according to claim 2, 3 or 4, characterized in that: A connection gap between the connection unit and the turret is covered with a weld.

9. The turret device according to claim 8, characterized in that: An eccentric positioning groove is provided at the bottom of the turret, and the connecting unit is fixedly connected to the turret after being embedded in the positioning groove.

10. A trolley chassis, characterized in that: It comprises a vehicle frame, a slewing support, a slewing oil cylinder and a turret device as claimed in any one of claims 1 to 9; The turret device is rotatably connected to the frame via the slewing support, and the hinge seat on the turret device is located inside the frame or below the frame; The first end of the rotary oil cylinder is hinged to the vehicle frame, and the second end of the rotary oil cylinder is hinged to the connecting ear plate on the hinge seat.

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