A retractable lifting mast device

Abstract

The present invention discloses a retractable lifting mast device, including a lifting module and a retracting module. The lifting module is used to realize the lifting movement of the lifting mast device, including a first reduction gear, a lifting motor, a rod body assembly and a control box. The rod body assembly performs linear reciprocating motion under the driving action of the first reduction gear; the retracting module is used to realize the pitch rotation movement and azimuth rotation movement of the lifting mast device, including a pitch rotation component and an azimuth rotation component. The present invention provides power and control through the control box, the first reduction gear, and the lifting motor, and cooperates with the rod body assembly that realizes step-by-step transmission with built-in multi-section lead screws, multi-section nuts, and multiple pipe sections to realize lifting movement; a pitch rotation component is added to the top of the rod body assembly to realize the pitch function; an azimuth rotation component is added to the top of the rod body assembly to realize the azimuth rotation function, and the azimuth rotation component and the pitch rotation component cooperate to realize the leveling function of the top mounting plane.

Description

Technical Field

[0001] The invention relates to the technical field of lifting mast devices, in particular to a lifting mast device which can be collapsed. Background Art

[0002] At present, there are few mast devices on the market that can be lifted and lowered, and most mast devices only have one function. However, with the diversification of product functions and the continuous innovation of technology, in actual applications, only one function can no longer meet the functional requirements of the product. For example, the electric mast or pneumatic mast currently used, when actually used on a reconnaissance vehicle, only has the lifting function, which will cause the reconnaissance equipment to be unable to be received into the vehicle body. Even if it can be withdrawn into the vehicle body, it is because the initial closing height of the mast is very small, which will greatly limit the maximum unfolding height of the mast, thereby reducing the reconnaissance range; if it only has the lodging function, although the reconnaissance equipment can be withdrawn into the vehicle body, it will greatly reduce the reconnaissance range of the reconnaissance vehicle. Therefore, it is necessary to design a lodging lifting mast device. Summary of the invention

[0003] In view of the technical problem to be solved, the present invention provides a mast device which selects three degrees of freedom of straight motion, azimuth rotation and pitch rotation, realizes long-distance lifting function and has a lodging function through joint control.

[0004] In order to solve the above technical problems, the present invention is implemented through the following technical solutions: A collapsible lifting mast device comprises a lifting module and a collapsing module which are fixedly connected to each other, wherein:

[0005] A lifting module, used to realize the lifting movement of the lifting mast device, comprising a first reduction gear, a lifting motor connected to the power input shaft of the first reduction gear, and a rod body assembly connected to the power output shaft of the first reduction gear, wherein the rod body assembly performs linear reciprocating motion under the driving action of the first reduction gear;

[0006] The lodging module is used to realize the pitch rotation movement and azimuth rotation movement of the lifting mast device, including an azimuth rotation component fixed to the top of the lifting module and a pitch rotation component fixed to one side of the azimuth rotation component. The pitch rotation component is used to realize the pitch rotation movement of the lifting mast device, and the azimuth rotation component is used to realize the azimuth rotation movement of the lifting mast device. The pitch rotation component and the azimuth rotation component cooperate to realize the leveling of the top installation plane of the lifting mast device.

[0007] Furthermore, the lifting module further includes:

[0008] A control box, used for driving the lifting motor to rotate;

[0009] A drag chain system, used to install a foldable connecting cable, one end of which is fixed to the first reduction device and the other end is fixed to the telescopic end of the rod assembly;

[0010] The wire guide ring is used to guide the connecting cables when they are retracted and released, and is fixed at the middle of the telescopic end of the rod assembly.

[0011] Further, the rod assembly includes a plurality of lead screws, a plurality of screw nuts and a plurality of tube sections; the plurality of lead screws include at least a first lead screw and a second lead screw, the plurality of screw nuts include at least a first screw nut and a second screw nut, and the plurality of tube sections include at least a telescopic tube section;

[0012] One end of the first lead screw is fixedly connected to the first reduction device, and the other end is sleeved with a first nut and a second lead screw fixed to each other, and the outer edge of the first nut is fixedly connected to the telescopic pipe joint;

[0013] The other end of the second lead screw is sleeved with a second nut and another lead screw section that are fixed to each other, and the outer edge of the second nut is fixedly connected to another pipe section.

[0014] Furthermore, the first reduction device drives the first lead screw to perform rotational motion, the first lead screw drives the first nut to perform linear reciprocating motion, the first nut drives the telescopic tube section to perform telescopic motion, the first lead screw drives the second lead screw to perform rotational motion, and multiple lead screw sections, multiple nut sections and multiple tube sections cooperate with each other to realize large-distance linear reciprocating motion of the rod body assembly.

[0015] Furthermore, a positioning pin is fixedly installed on the outer side of the end of the first pipe section away from the first reduction device, and a flange is fixedly installed on the end of the last pipe section close to the lodging module, and a positioning hole matching with the positioning pin is opened on the flange;

[0016] When the rod body assembly is retracted to the shortest state, the positioning pin is inserted into the positioning hole.

[0017] Furthermore, the pitch rotation component includes a pitch motor, a second reduction gear and a pitch transmission bracket, wherein:

[0018] The pitch motor is used to output power; the power input shaft of the second reduction gear is connected to the pitch motor, and the power output shaft is connected to the pitch transmission bracket, and the pitch transmission bracket is used to output the final pitch rotation speed.

[0019] Furthermore, the azimuth rotating component includes an azimuth motor, a third reduction gear and an azimuth transmission bracket, wherein:

[0020] The azimuth motor is used to output power; the power input shaft of the third reduction gear is connected to the azimuth motor, and the power output shaft is connected to the azimuth transmission bracket, and the azimuth transmission bracket is used to output the final azimuth rotation speed.

[0021] Furthermore, the third reduction device is a hollow shaft reducer, and a center hole for passing the connecting cable is reserved in the middle of the hollow shaft reducer.

[0022] Furthermore, the number of the lead screw, the nut and the pipe joint is the same and is not less than 2.

[0023] Compared with the prior art, the present invention is beneficial in that:

[0024] 1. The lifting mast device provided by the present invention is powered and controlled by a control box, a first reduction device, and a lifting motor, and cooperates with a rod body assembly with multiple screw sections, multiple nuts, and multiple pipe sections to realize step-by-step transmission to realize lifting movement; in order to realize the pitch function, a pitch rotating component is added to the top of the rod body assembly; in order to realize the azimuth rotation function, an azimuth rotation component is added to the top of the rod body assembly; the azimuth rotation component and the pitch rotating component cooperate to realize the leveling function of the top installation plane of the lifting mast device, and the leveled installation plane has high precision, which can meet the installation precision requirements of radar, optoelectronic and other reconnaissance and detection equipment.

[0025] 2. The lifting mast device provided by the present invention adopts three degrees of freedom of linear motion, azimuth rotation and pitch rotation, and realizes the synchronous lifting motion with azimuth rotation and pitch rotation through the control center, thereby improving the maneuverability of the equipment and can be widely used in radio transmission equipment, reconnaissance and detection equipment, etc. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the embodiments of the present invention 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 present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0027] The present invention is further described below in conjunction with the accompanying drawings:

[0028] Figure 1 It is a schematic diagram of the overall structure of the lodging lifting mast device of the present invention;

[0029] Figure 2 is a structural schematic diagram of the lifting module;

[0030] Figure 3 is a bottom full cross-sectional view of the rod assembly;

[0031] Figure 4 is a schematic diagram of the top structure of the rod assembly;

[0032] Figure 5is a structural schematic diagram of the lodging module;

[0033] Figure 6 is a schematic structural diagram of the pitch rotation component;

[0034] Figure 7 is a structural schematic diagram of the azimuth rotation component;

[0035] Figure 8 yes Figure 7 A top view of

[0036] 1. Lifting module; 2. Lodging module; 11. Rod assembly; 12. Lifting motor; 13. First reduction gear; 14. Control box; 15. Drag chain system; 16. Wire ring; 111. First lead screw; 112. First nut; 113. Telescopic tube section; 114. Second lead screw; 115. Second nut; 116. Locating pin; 117. Locating hole; 21. Pitch rotating component; 22. Azimuth rotating component; 211. Pitch motor; 212. Second reduction gear; 213. Pitch transmission bracket; 221. Azimuth motor; 222. Third reduction gear; 223. Azimuth transmission bracket; 224. Center hole. DETAILED DESCRIPTION

[0037] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0038] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back, etc.) 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.

[0039] In addition, in the present invention, descriptions such as "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.

[0040] 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.

[0041] 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.

[0042] As attached Figure 1 A retractable lifting mast device is shown, which mainly includes a lifting module 1, a retracting module 2, a control module and connecting cables connecting the modules, wherein the lifting module 1 is used to realize the lifting movement of the present embodiment, the retracting module 2 is used to realize the pitch rotation movement and azimuth rotation movement of the present embodiment, and the combination of the pitch rotation movement and the azimuth rotation movement realizes the leveling function of the top mounting plane of the present embodiment; the control module is used to realize the control of the present invention; and the connecting cables are used to realize the electrical connection and communication of the various components of the present invention.

[0043] More specifically, as attached Figure 2As shown, the lifting module 1 mainly includes a first reduction gear 13, a lifting motor 12, a rod body assembly 11, a control box 14, a drag chain system 15 and a wire ring 16; wherein the lifting motor 12 is fixedly connected to the power input shaft of the first reduction gear 13, the rod body assembly 11 is fixedly connected to the power output shaft of the first reduction gear 13 and realizes deceleration, and the control box 14 is electrically connected to the first reduction gear 13 and the lifting motor 12 through connecting cables, respectively, for driving the lifting motor 12 to rotate and transmitting power to the first reduction gear 13 and the rod body assembly 11 in sequence to realize lifting movement. The interior of the drag chain system 15 has a cavity for installing a foldable connecting cable; the wire ring 16 is used to guide when retracting and releasing the connecting cable to avoid the drag chain system 15 from getting stuck during the process of retracting and releasing the cable; one end of the drag chain system 15 is fixed to the first reduction gear 13 by screws, and the other end is fixed to the telescopic end of the rod assembly 11 by screws. It unfolds or folds with the extension and contraction of the rod assembly 11. When the rod assembly 11 is extended, it unfolds, and when the rod assembly 11 is retracted, it folds, which can provide power and communication for the lodging module 2 above the lifting module 1 and the upper equipment of the lodging module 2, such as optoelectronic equipment, radar equipment, etc.; the wire ring 16 is fixed to the middle pipe section of the telescopic end of the rod assembly 11 by screws; the rod assembly 11 performs linear reciprocating motion under the drive of the lifting motor 12 and the first reduction gear 13.

[0044] More specifically, as attached Figure 5 As shown, the lying module 2 is used to realize the pitch rotation movement and azimuth rotation movement of the lifting mast device, including an azimuth rotation component 22 fixed to the top of the lifting module 1 and a pitch rotation component 21 fixed to one side of the azimuth rotation component 22, the pitch rotation component 21 is used to realize the pitch rotation movement of the lifting mast device, the azimuth rotation component 22 is used to realize the azimuth rotation movement of the lifting mast device, the pitch rotation component 21 and the azimuth rotation component 22 cooperate to realize the leveling of the top installation plane of the lifting mast device, and the leveled installation plane has high precision, which can meet the installation precision requirements of radar, optoelectronic and other reconnaissance and detection equipment.

[0045] More specifically, as attached Figure 3As shown, the rod assembly 11 includes a plurality of lead screws, a plurality of screw nuts and a plurality of tube sections; the plurality of lead screws include at least a first lead screw 111 and a second lead screw 114, the plurality of screw nuts include at least a first screw 112 and a second screw 115, and the plurality of tube sections include at least a telescopic tube section 113; one end of the first lead screw 111 is fixedly connected to the first reduction device 13, and the other end is sleeved with the first screw nut 112 and the second lead screw 114 fixed to each other, and the outer edge of the first screw nut 112 is fixedly connected to the telescopic tube section 113; the other end of the second lead screw 114 is sleeved with the second screw nut 115 and another lead screw fixed to each other, and the outer edge of the second screw nut 115 is fixedly connected to another tube section. The number of the lead screws, screw nuts and tube sections is the same and at least two to achieve telescopic, and the specific number can be selected or customized according to the actual situation. The more the number, the higher the height that can be lifted and lowered, the larger the range that can be detected, and the lower the strength and rigidity, and vice versa.

[0046] As a preference, Figure 4 As shown, a locating pin 116 is fixedly installed on the outer side of the end of the first pipe section away from the first reduction device 13, and a flange is fixedly installed on the end of the last pipe section close to the inverted module 2, and a locating hole 117 is provided on the flange to cooperate with the locating pin 116; when the rod body assembly 11 is retracted to the shortest state, the locating pin 116 is inserted into the locating hole 117, which greatly reduces the torsional error of the multi-section screw transmission and improves the rigidity of the lifting module 1 itself.

[0047] More specifically, as attached Figure 6 As shown, the pitch rotation component 21 includes a pitch motor 211, a second reduction gear 212 and a pitch transmission bracket 213. The pitch motor 211 is used to output power; the second reduction gear 212 is used to achieve deceleration, and its power input shaft is connected to the pitch motor 211, and the power output shaft is connected to the pitch transmission bracket 213. The pitch transmission bracket 213 is used to output the final pitch rotation speed, so as to achieve the pitch rotation movement of the pitch rotation component 21.

[0048] More specifically, as attached Figures 7 and 8 As shown, the azimuth rotating component 22 includes an azimuth motor 221, a third reduction gear 222 and an azimuth transmission bracket 223, wherein the azimuth motor 221 is used to output power; the third reduction gear 222 is used to reduce speed, and its power input shaft is connected to the azimuth motor 221, and the power output shaft is connected to the azimuth transmission bracket 223, and the azimuth transmission bracket 223 is used to output the final azimuth rotation speed, thereby realizing the azimuth rotation movement of the azimuth rotating component 22.

[0049] Preferably, the first reduction gear 13 and the second reduction gear are commonly used reducers and are not described in detail here; the third reduction gear 222 is a hollow shaft reducer, and a center hole 224 is reserved in the middle of the hollow shaft reducer for passing the connecting cables. The connecting cables of the upper equipment of the lodging module 2 do not need to pass through the slip ring, but directly pass through the center hole 224, which saves space and provides good protection for the connecting cables.

[0050] The specific use process of this embodiment is:

[0051] First, radar or photoelectric reconnaissance and detection equipment is fixed on the top installation plane of this embodiment by screws, and the power is started. When it is necessary to ascend, the control box 14 drives the lifting motor 12 to move and transmits the power to the first reduction gear 13 in sequence. The first reduction gear 13 drives the first lead screw 111 to rotate, and the first lead screw 111 further drives the first nut 112 to perform a linear upward movement. The first nut 112 drives the telescopic tube section 113 to perform a linear extension movement. The first lead screw 111 simultaneously drives the second lead screw 114 to rotate, and the action is repeated in this way. With the cooperation of multiple lead screws, multiple nut sections and multiple tube sections, the rod body assembly 11 can achieve a long-distance linear upward movement to a specified height. At the same time, the drag chain system 15 fixed to the telescopic end of the rod body assembly 11 carries a foldable connecting cable to be unfolded; at this point, the ascending movement of this embodiment is completed, and the opposite action is performed for descent.

[0052] When it is necessary to lie down, the pitch rotation movement of this embodiment is realized by controlling the pitch rotation component 21 at the upper end of the lifting module 1, and the azimuth rotation movement of this embodiment is realized by controlling the azimuth rotation component 22 at the upper end of the lifting module 1; when leveling is required, the leveling of the top installation plane of this embodiment is realized by the coordinated operation of the azimuth rotation component 22 and the pitch rotation component 21, that is, the leveling of the radar or optoelectronic reconnaissance and detection equipment installed on the installation plane is realized, and at this point, the lying action of this embodiment is completed.

[0053] This embodiment uses three degrees of freedom: straight motion, azimuth rotation, and pitch rotation. Through the control center, the lifting motion can be synchronized with the azimuth rotation and pitch rotation, which improves the maneuverability of the equipment and can be widely used in radio transmission equipment, reconnaissance and detection equipment, etc.

[0054] The above description is only a preferred embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the inventive concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A lodging mast device, characterized in that: It comprises a lifting module (1) and a lodging module (2) which are fixedly connected to each other, wherein: A lifting module (1) is used to realize the lifting movement of a lifting mast device, comprising a first reduction gear (13), a lifting motor (12) connected to a power input shaft of the first reduction gear (13), and a rod body assembly (11) connected to a power output shaft of the first reduction gear (13), wherein the rod body assembly (11) performs linear reciprocating motion under the driving action of the first reduction gear (13); A lodging module (2) for realizing pitch rotation and azimuth rotation of a lifting mast device, comprising an azimuth rotation component (22) fixed to the top of the lifting module (1) and a pitch rotation component (21) fixed to one side of the azimuth rotation component (22), wherein the pitch rotation component (21) is used to realize pitch rotation of the lifting mast device, and the azimuth rotation component (22) is used to realize azimuth rotation of the lifting mast device, and the pitch rotation component (21) and the azimuth rotation component (22) cooperate to realize leveling of the top mounting plane of the lifting mast device, so that the leveled mounting plane has a high precision, thereby meeting the installation precision requirements of radar and reconnaissance detection equipment; The lifting mast device adopts straight motion, azimuth rotation and pitch rotation with three degrees of freedom. The lifting motion is synchronized with azimuth rotation and pitch rotation through the control center, which improves the maneuverability of the equipment. The lifting module (1) further comprises: A control box (14), used for driving the lifting motor (12) to rotate; A drag chain system (15) for installing a foldable connecting cable, one end of which is fixed to the first deceleration device (13) and the other end of which is fixed to the telescopic end of the rod assembly (11); A wire guide ring (16) is used to guide the connecting cables when they are retracted and released, and is fixed to the middle of the retractable end of the rod assembly (11); The rod assembly (11) comprises a plurality of lead screw sections, a plurality of thread nuts and a plurality of tube sections; the plurality of lead screw sections at least comprises a first lead screw (111) and a second lead screw (114); the plurality of thread nuts at least comprises a first thread nut (112) and a second thread nut (115); and the plurality of tube sections at least comprises a telescopic tube section (113); One end of the first lead screw (111) is fixedly connected to the first reduction device (13), and the other end is sleeved on a first nut (112) and a second lead screw (114) fixed to each other, and the outer edge of the first nut (112) is fixedly connected to the telescopic pipe joint (113); The other end of the second lead screw (114) is sleeved with a second nut (115) and another lead screw section which are fixed to each other, and the outer edge of the second nut (115) is fixedly connected to another pipe section; A positioning pin (116) is fixedly mounted on the outer side of the end of the first pipe segment away from the first reduction device (13), and a flange is fixedly mounted on the end of the last pipe segment close to the lodging module (2), wherein a positioning hole (117) is provided on the flange and matches the positioning pin (116); When the rod assembly (11) is retracted to the shortest state, the positioning pin (116) is inserted into the positioning hole (117); The pitch rotation component (21) comprises a pitch motor (211), a second reduction gear (212) and a pitch transmission bracket (213), wherein: The pitch motor (211) is used to output power; the power input shaft of the second reduction gear (212) is connected to the pitch motor (211), and the power output shaft is connected to the pitch transmission bracket (213); the pitch transmission bracket (213) is used to output a final pitch rotation speed; The azimuth rotating component (22) comprises an azimuth motor (221), a third reduction gear (222) and an azimuth transmission bracket (223), wherein: The azimuth motor (221) is used to output power; the power input shaft of the third reduction gear (222) is connected to the azimuth motor (221), and the power output shaft is connected to the azimuth transmission bracket (223); the azimuth transmission bracket (223) is used to output a final azimuth rotation speed; The third reduction device (222) is a hollow shaft reducer, and a central hole (224) for passing a connecting cable is reserved in the middle of the hollow shaft reducer.

2. A collapsible lifting mast device according to claim 1, characterized in that: The first reduction device (13) drives the first lead screw (111) to perform rotational motion, the first lead screw (111) drives the first nut (112) to perform linear reciprocating motion, the first nut (112) drives the telescopic tube section (113) to perform telescopic motion, the first lead screw (111) drives the second lead screw (114) to perform rotational motion, and the multiple lead screw sections, multiple nut sections, and multiple tube sections cooperate with each other to achieve long-distance linear reciprocating motion of the rod body assembly (11).

3. A collapsible lifting mast device according to claim 1 or 2, characterized in that: The number of the lead screw, the nut and the pipe joint is the same and is not less than 2.

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