Engineering machinery revolving platform supporting structure

Abstract

The utility model relates to the technical field of mechanical engineering, in particular to an engineering machinery revolving platform supporting structure which comprises a base, supporting legs are fixedly installed at the lower end of the base, four first loop bars are annularly and fixedly installed at the upper end of the base, and a lifting mechanism is jointly connected among the four first loop bars in a sliding mode. A transmission mechanism is fixedly mounted in the middle of the upper end of the base and is in transmission connection with the lifting mechanism. According to the rotary platform supporting structure of the engineering machinery, the driving gear is meshed with the transmission rack to enable the supporting rod to slide in the second sleeve rod, stable lifting of the lifting mechanism is achieved, use is convenient, practicability is high, the rotary platform is clamped and fixed to the upper end of the supporting plate through mutual cooperation of the four positioning clamping plates, and the working efficiency is improved. The rotary platform is rapidly disassembled and assembled, operation is convenient and fast, the convenience of installation of the rotary platform is greatly improved, and good use prospects are achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of mechanical engineering, in particular to a supporting structure of a rotary platform of an engineering machinery. Background Art

[0002] Slewing bearing is a new type of mechanical component, which consists of inner ring, outer ring, rolling element, etc. Slewing bearing is a large bearing that can withstand comprehensive loads, and can withstand large axial, radial loads and overturning moments at the same time. Slewing bearing is also called turntable bearing, also known as: rotary bearing, slewing bearing. In English, it is called: slewing bearing, slewingring bearing, turntable bearing, slewing ring. Slewing bearing is widely used in modern industry. It is an important transmission component required for machinery that needs to make relative rotational motion between two objects and bear axial force, radial force, and overturning moment at the same time. With the rapid development of the mechanical engineering machinery industry, slewing bearings have been widely used in engineering machinery and light industrial machinery.

[0003] The existing support structures of the rotary platforms are mostly simple support platforms, which cannot be raised or lowered according to the use requirements. In addition, the support structures of the rotary platforms and the rotary platforms are mostly welded, which is not convenient to dismantle, and has a certain adverse effect on people's use process. Therefore, we propose a support structure for the rotary platform of engineering machinery. Utility Model Content

[0004] The main purpose of the utility model is to provide a supporting structure of a rotary platform of an engineering machinery, which can effectively solve the problems in the background technology.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0006] A supporting structure of a revolving platform of an engineering machinery comprises a base, a supporting leg is fixedly installed on the lower end of the base, four No. 1 sleeve rods are fixedly installed in a ring shape on the upper end of the base, a lifting mechanism is slidably connected between the four No. 1 sleeve rods, a transmission mechanism is fixedly installed in the middle part of the upper end of the base, and the transmission mechanism is transmission-connected to the lifting mechanism.

[0007] Preferably, the lifting mechanism includes a support plate, the outer surface of the support plate is integrally formed with four extension arms, the lower ends of the four extension arms are fixedly installed with telescopic rods, the four telescopic rods are respectively slidably connected in four No. 1 sleeve rods, a support rod is fixedly installed in the middle of the lower end of the support plate, and a transmission rack is provided on the outer surface of the support rod.

[0008] Preferably, the transmission mechanism includes a No. 2 sleeve rod, the No. 2 sleeve rod is fixedly mounted on the middle part of the upper end of the base, the outer surface of the No. 2 sleeve rod is provided with a slot, the outer surface of the No. 2 sleeve rod is fixedly mounted with a fixing frame, a No. 1 forward and reverse motor is fixedly mounted on one side of the fixing frame, a movable rod is fixedly mounted on the output end of the No. 1 forward and reverse motor, the movable rod is movably mounted on the fixing frame, and a driving gear is fixedly mounted on the movable rod.

[0009] Preferably, the support rod is slidably connected in the second sleeve rod and the transmission rack and the driving gear are meshed with each other.

[0010] Preferably, a slide groove is formed at the upper ends of the four extension arms, and a positioning piece is slidably connected in the four slide grooves.

[0011] Preferably, the positioning member includes a No. 2 forward and reverse motor, which is fixedly installed on one end of the extension arm away from the support plate, and a screw rod is fixedly installed on the output end of the No. 2 forward and reverse motor, and the screw rod is movably installed in a slide groove. A positioning clamping plate is threadedly connected to the screw rod, and the lower part of the positioning clamping plate is slidably connected in the slide groove.

[0012] Preferably, the opposite ends of the four positioning clamps are all arc surface structures, and the opposite ends of the four positioning clamps are fixedly installed with rubber pads.

[0013] Compared with the prior art, the utility model has the following beneficial effects:

[0014] 1. The driving gear is meshed with the transmission rack to make the support rod slide in the No. 2 sleeve rod to realize the lifting and lowering of the support plate. At the same time, the telescopic rod slides in the corresponding No. 1 sleeve rod to improve the stability of the lifting mechanism during the lifting process, thereby realizing the smooth lifting and lowering of the lifting mechanism, which is convenient to use and highly practical.

[0015] 2. The positioning clamping plate is threadedly connected with the screw rod to make the positioning clamping plate slide in the slide groove. The four positioning clamping plates cooperate with each other to clamp the rotary platform to the upper end of the support plate, so that the rotary platform can be quickly disassembled and assembled, the operation is convenient, and the convenience of installation of the rotary platform is greatly improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the overall structure of a supporting structure of a rotary platform of an engineering machinery according to the utility model;

[0017] Figure 2 This is a schematic diagram of the connection between the transmission mechanism and the base of a rotary platform support structure of an engineering machinery according to the utility model;

[0018] Figure 3 This is a structural schematic diagram of a lifting mechanism of a rotary platform support structure of an engineering machinery according to the utility model;

[0019] Figure 4 The utility model is a schematic diagram of the connection between a positioning member and an extension arm of a supporting structure of a rotary platform of an engineering machinery.

[0020] In the figure: 1. base; 2. supporting leg; 3. No. 1 sleeve rod; 4. lifting mechanism; 5. transmission mechanism; 6. support plate; 7. extension arm; 8. slide groove; 9. positioning piece; 10. telescopic rod; 11. support rod; 12. transmission rack; 51. No. 2 sleeve rod; 52. slot; 53. fixing frame; 54. No. 1 forward and reverse motor; 55. movable rod; 56. driving gear; 91. No. 2 forward and reverse motor; 92. screw rod; 93. positioning splint; 94. rubber pad. DETAILED DESCRIPTION

[0021] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0022] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "two ends", "one end", "the other end" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0023] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0024] See also Figure 1-4 , the utility model provides a technical solution:

[0025] A supporting structure of a slewing platform of an engineering machinery comprises a base 1, a supporting leg 2 is fixedly installed at the lower end of the base 1, four No. 1 sleeve rods 3 are fixedly installed in a ring shape at the upper end of the base 1, a lifting mechanism 4 is slidably connected between the four No. 1 sleeve rods 3, a transmission mechanism 5 is fixedly installed in the middle of the upper end of the base 1, and the transmission mechanism 5 is transmission-connected to the lifting mechanism 4.

[0026] In this embodiment, the lifting mechanism 4 includes a support plate 6, and four extension arms 7 are integrally formed on the outer surface of the support plate 6. The lower ends of the four extension arms 7 are fixedly installed with telescopic rods 10, and the four telescopic rods 10 are respectively slidably connected in four No. 1 sleeve rods 3. A support rod 11 is fixedly installed in the middle of the lower end of the support plate 6, and a transmission rack 12 is provided on the outer surface of the support rod 11; the transmission mechanism 5 includes a No. 2 sleeve rod 51, The second sleeve rod 51 is fixedly installed in the middle part of the upper end of the base 1, and the outer surface of the second sleeve rod 51 is provided with a groove 52. The outer surface of the second sleeve rod 51 is fixedly installed with a fixing frame 53, and a first forward and reverse motor 54 is fixedly installed on one side of the fixing frame 53. A movable rod 55 is fixedly installed on the output end of the first forward and reverse motor 54. The movable rod 55 is movably installed with the fixing frame 53, and a driving gear 56 is fixedly installed on the movable rod 55; the support rod 11 is slidably connected in the second sleeve rod 51 and the transmission rack 12 is meshed with the driving gear 56; the support rod 11 slides in the second sleeve rod 51 through the meshing of the driving gear 56 with the transmission rack 12, so as to realize the lifting and lowering of the support plate 6. At the same time, the telescopic rod 10 slides in the corresponding No. 1 sleeve rod 3 to improve the stability of the lifting mechanism 4 during the lifting process, so as to realize the smooth lifting and lowering of the lifting mechanism 4, which is convenient to use and has strong practicality.

[0027] The locating member 93 is connected to the upper end of the four extension arms 7 by sliding grooves 8, and the locating members 9 are connected in a sliding manner in the four sliding grooves 8; the locating member 9 comprises a No. 2 forward and reverse motor 91, and the No. 2 forward and reverse motor 91 is fixedly installed with one end of the extension arm 7 away from the support plate 6; the output end of the No. 2 forward and reverse motor 91 is fixedly installed with a screw rod 92, and the screw rod 92 is movably installed in the sliding groove 8, and a positioning clamping plate 93 is threadedly connected on the screw rod 92, and the lower part of the positioning clamping plate 93 is slidably connected in the sliding groove 8; the opposite ends of the four positioning clamping plates 93 are all cambered structures, and the opposite ends of the four positioning clamping plates 93 are fixedly installed with rubber pads 94, and the rubber pads 94 are used to improve the fixing effect of the positioning clamping plate 93 on the rotating platform; the positioning clamping plate 93 is threadedly connected with the screw rod 92 and the positioning clamping plate 93 so that the positioning clamping plate 93 slides in the sliding groove 8, and the rotating platform is clamped and fixed to the upper end of the support plate 6 by the four positioning clamping plates 93 cooperating with each other, so that the rotating platform can be quickly disassembled and assembled, and the operation is convenient, which greatly improves the convenience of installing the rotating platform.

[0028] It should be noted that the utility model is a supporting structure of a slewing platform of an engineering machinery. During use, the utility model is first moved to a position where it is needed, and then the slewing platform is placed on the upper end of the support plate 6, and then the four No. 2 forward and reverse motors 91 are started synchronously, and the No. 2 forward and reverse motors 91 drive the screw rod 92 to rotate, and the screw rod 92 is threadedly connected with the positioning clamping plate 93 to make the positioning clamping plate 93 slide in the slide groove 8, and the four positioning clamping plates 93 cooperate with each other to clamp the slewing platform to the upper end of the support plate 6, so as to achieve The revolving platform can be quickly assembled and disassembled, and the operation is convenient, which greatly improves the convenience of installing the revolving platform. The No. 1 forward and reverse motor 54 is started, and the movable rod 55 is driven by the No. 1 forward and reverse motor 54 to rotate the driving gear 56. The driving gear 56 is meshed with the transmission rack 12 to make the support rod 11 slide in the No. 2 sleeve rod 51 to realize the lifting and lowering of the support plate 6. At the same time, the telescopic rod 10 slides in the corresponding No. 1 sleeve rod 3 to improve the stability of the lifting mechanism 4 during the lifting process, thereby realizing the smooth lifting and lowering of the lifting mechanism 4. It is convenient to use and has strong practicality.

[0029] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A support structure for a rotary platform of an engineering machinery, comprising a base (1), characterized in that: A support leg (2) is fixedly mounted on the lower end of the base (1); four No. 1 sleeve rods (3) are fixedly mounted in a ring shape on the upper end of the base (1); a lifting mechanism (4) is slidably connected between the four No. 1 sleeve rods (3); a transmission mechanism (5) is fixedly mounted on the middle part of the upper end of the base (1), and the transmission mechanism (5) is in transmission connection with the lifting mechanism (4); The lifting mechanism (4) comprises a support plate (6), the outer surface of the support plate (6) is integrally formed with four extension arms (7), the lower ends of the four extension arms (7) are fixedly mounted with telescopic rods (10), the four telescopic rods (10) are respectively slidably connected in four No. 1 sleeve rods (3), a support rod (11) is fixedly mounted in the middle of the lower end of the support plate (6), and a transmission rack (12) is arranged on the outer surface of the support rod (11).

2. The supporting structure of a rotary platform of an engineering machinery according to claim 1, characterized in that: The transmission mechanism (5) comprises a No. 2 sleeve rod (51), the No. 2 sleeve rod (51) being fixedly mounted at the middle part of the upper end of the base (1), the outer surface of the No. 2 sleeve rod (51) being provided with a slot (52), the outer surface of the No. 2 sleeve rod (51) being fixedly mounted with a fixing frame (53), one side of the fixing frame (53) being fixedly mounted with a No. 1 forward and reverse motor (54), an output end of the No. 1 forward and reverse motor (54) being fixedly mounted with a movable rod (55), the movable rod (55) being movably mounted with the fixing frame (53), and a driving gear (56) being fixedly mounted on the movable rod (55).

3. The supporting structure of a rotary platform of an engineering machinery according to claim 1, characterized in that: The support rod (11) is slidably connected in the second sleeve rod (51), and the transmission rack (12) and the driving gear (56) are meshed with each other.

4. The supporting structure of a rotary platform of an engineering machinery according to claim 1, characterized in that: The upper ends of the four extension arms (7) are each provided with a slide groove (8), and positioning members (9) are slidably connected in the four slide grooves (8).

5. The supporting structure of a rotary platform of an engineering machinery according to claim 4, characterized in that: The positioning member (9) comprises a second forward and reverse motor (91), the second forward and reverse motor (91) being fixedly mounted on an end of the extension arm (7) away from the support plate (6), a lead screw (92) being fixedly mounted on the output end of the second forward and reverse motor (91), the lead screw (92) being movably mounted in the slide groove (8), a positioning clamping plate (93) being threadedly connected to the lead screw (92), and a lower portion of the positioning clamping plate (93) being slidably connected in the slide groove (8).

6. The supporting structure of a rotary platform of an engineering machinery according to claim 5, characterized in that: The opposite ends of the four positioning clamps (93) are all arc surface structures, and the opposite ends of the four positioning clamps (93) are all fixedly mounted with rubber pads (94).

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