Portable DC tensioning machine

Abstract

The present invention discloses a portable DC tightening machine, which belongs to the technical field of transmission line erection. It includes a tightening machine body, a regulating part and a DC motor; a transmission assembly and a line adjusting part are arranged in the tightening machine body; the transmission assembly is respectively connected to the DC motor and the line adjusting part, and a mobile power supply, a speed regulator and a microcontroller are respectively arranged in the regulating part, the mobile power supply is respectively electrically connected to the microcontroller and the speed regulator, and the speed regulator is electrically connected to the DC motor; a WIFI module is arranged on the microcontroller, the WIFI module signal is connected to a mobile control terminal, and the microcontroller is electrically connected to the speed regulator. The device can effectively realize the automatic lifting and lowering control of heavy objects during line adjustment construction operations, reduce the labor intensity of operators, and improve work efficiency. At the same time, the DC motor can be used as a drive to effectively reduce the size of the equipment, realize the miniaturization and portability of the equipment; the use of high-altitude heavy objects to lift and lower remote operations effectively reduces the production safety hazards that may be caused by manual high-altitude operations.

Description

Technical Field

[0001] The invention relates to the technical field of power transmission line erection, and in particular to a portable DC tightening machine. Background Art

[0002] The wire tensioner is also called a ratchet tightener. In outdoor construction such as power transmission, communication, and bridge engineering, especially in UHV line construction, there are a lot of outdoor lifting, lowering and adjusting line operations.

[0003] In the prior art, a lever hoist is usually used at a construction site to lift and lower heavy objects. When the lever hoist is manually operated, the manual lever movement of the lever hoist takes about 1 second to make a back-and-forth movement, the movement amplitude is about 12°, and the time taken for one circle is t=360 / 12=30 seconds. The number of manual circles per minute is n=60 / 30=2rpm, that is, the hoist drive sprocket works about 2 circles per minute, which is slow and has high work intensity. This restricts the progress of the project to a certain extent and is very inconvenient.

[0004] Moreover, when tightening the wire with a manual hand winch during high-altitude operations, especially when lifting and lowering heavy objects under some special working conditions, there are certain production safety risks.

[0005] In view of the above-mentioned existing technical conditions, the applicant of the present invention has conducted a lot of repeated and beneficial explorations, and finally achieved effective results in the product, and formed the technical solution to be introduced below. Summary of the invention

[0006] To this end, the present invention provides a portable DC wire tightening machine to solve the problems of high strength, low working efficiency and production safety hazards in the prior art when manually operating a lever hoist during high-pressure air-conditioning line construction.

[0007] In order to achieve the above object, the present invention provides the following technical solutions:

[0008] A portable DC tensioning machine comprises a tensioning machine body, and a regulating part and a DC motor respectively arranged on the tensioning machine body; wherein,

[0009] The interior of the wire tightening machine body is respectively provided with a transmission assembly and a wire adjusting part;

[0010] The transmission assembly includes a gear accelerator structure and a ratchet structure, the input shaft of the gear accelerator structure is transmission-connected with the output shaft of the DC motor, and the output shaft of the gear accelerator structure is coaxially transmission-connected with the line adjustment part and the ratchet structure respectively;

[0011] A mobile power source, a speed regulator, a microcontroller and a WIFI module are fixedly connected inside the control unit, wherein the output end of the mobile power source is electrically connected to the microcontroller and the speed regulator, respectively, and the speed regulator is electrically connected to the DC motor;

[0012] The microcontroller is electrically connected with a WIFI module, the WIFI module is connected with a mobile control terminal through a remote signal, and the output end of the microcontroller is electrically connected with the speed regulator.

[0013] On the basis of the above technical solution, the present invention can also be improved as follows:

[0014] Furthermore, a hanging buckle is fixedly provided on the top of the tightening machine body.

[0015] Furthermore, a limiting pawl cooperating with the ratchet structure is rotatably provided on the tightening machine body;

[0016] A spring seat and a limit push shaft are fixedly connected to the tensioning machine body respectively, a limit spring is arranged between the spring seat and the limit pawl, and a ratchet pawl structure is formed by utilizing the limit pawl, the limit spring and the ratchet structure, and a limit handle body is arranged on the limit push shaft.

[0017] Furthermore, a clutch assembly is also provided on the gear accelerator structure.

[0018] Furthermore, the gear accelerator structure comprises a meshing driving gear and a driven gear; wherein the driving gear is keyed to the output shaft of the DC motor, and a clutch slideway is provided on the inner side of the driving gear at a position corresponding to the assembly key;

[0019] The clutch assembly comprises a gear hand wheel and a positioning bolt. The positioning bolt is fixedly arranged on the rod body of the gear hand wheel, and the positioning bolt is threadedly engaged with the output shaft of the DC motor.

[0020] Furthermore, the clutch assembly also includes a bearing seat, the driving gear is fixedly connected to the bearing seat, a bearing is arranged in the bearing seat, and the rod body on the gear handwheel is assembled with the bearing.

[0021] Furthermore, the clutch assembly also includes a return spring, and the return spring is arranged between the wheel body of the gear handwheel and the bearing seat.

[0022] The present invention has the following advantages:

[0023] 1. The device uses a DC motor to connect with the line adjustment part through a transmission component, which can effectively realize the automatic lifting and lowering control of heavy objects during line adjustment operations, reduce the labor intensity of operators, and greatly improve work efficiency and device functionality. At the same time, the DC motor is used as a drive to effectively reduce the size of the equipment on the basis of realizing the established automation functions, thereby achieving miniaturization and portability; the portable DC tensioner is operated by remote control to realize remote operation of lifting and lowering high-altitude heavy objects, reducing the production safety hazards that may be caused by manual high-altitude operations when the hand-pulled tensioner is tightening the line.

[0024] 2. The device has manual and automatic integrated operation functions, the characteristics of quick chain withdrawal in neutral position and manual gear operation function, which maximizes the use function of the portable DC tensioner. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the implementation mode of the present invention or the technical solution in the prior art, the drawings required for the implementation mode or the description of the prior art will be briefly introduced below. The structures, proportions, sizes, etc. illustrated in this specification are only used to match the contents disclosed in the specification for people familiar with this technology to understand and read. Any structural modification, change in proportional relationship or adjustment of size should still fall within the scope of the technical contents disclosed in the present invention without affecting the effects and purposes that can be achieved by the present invention.

[0026] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present invention;

[0027] Figure 2 It is a schematic diagram of a top view of the structure of an embodiment of the present invention;

[0028] Figure 3 It is a bottom view structural schematic diagram of an embodiment of the present invention;

[0029] Figure 4 It is a side view structural schematic diagram of an embodiment of the present invention;

[0030] Figure 5 It is a structural schematic diagram of a ratchet structure in an embodiment of the present invention;

[0031] Figure 6 This is one of the structural schematic diagrams of the clutch assembly in an embodiment of the present invention;

[0032] Figure 7 This is a second structural schematic diagram of a clutch assembly in an embodiment of the present invention;

[0033] Figure 8 Schematic diagram of the control principle of an embodiment of the present invention.

[0034] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0035] The wire tensioning body 1, the hanging buckle 2, the regulating part 3, the DC motor 4, the transmission assembly 5, the gear accelerator structure 51, the driving gear 511, the driven gear 512, the clutch slideway 513, the ratchet structure 52, the limiting pawl 53, the spring seat 54, the limiting spring 55, the limiting pushing shaft 56, the limiting handle body 57, the clutch assembly 6, the gear hand wheel 61, the return spring 62, the bearing seat 63, the positioning bolt 64, and the wire adjusting part 7. DETAILED DESCRIPTION

[0036] The following is a description of the implementation of the present invention by specific embodiments. People familiar with the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. Obviously, the described embodiments are 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.

[0037] like Figure 1-5 As shown, the embodiment of the present invention provides a portable DC wire tightening machine, including a wire tightening machine body 1 and a hanging buckle 2, a regulating part 3, a DC motor 4 and a wire adjusting part 7 respectively arranged on the wire tightening machine body 1, and the DC motor 4 is connected to the wire adjusting part 7 through a transmission component 5, so as to realize the automatic lifting and lowering control of heavy objects during wire adjusting construction, effectively reducing the labor intensity of operators, improving work efficiency and functionality of the device. The specific settings are as follows:

[0038] The hanging buckle 2 is fixedly arranged on the top of the tensioning machine body 1, so as to utilize the hanging buckle 21 to realize stable hanging of the whole device at a high place.

[0039] The DC motor 4 is fixedly connected to the side end of the tensioning machine body 1; a transmission assembly 5 and a wire adjusting part 7 are respectively provided inside the tensioning machine body 1, specifically, the transmission assembly 5 includes a gear accelerator structure 51 and a ratchet structure 52, the input shaft of the gear accelerator structure 51 is fixedly connected with the output shaft of the DC motor 4 by transmission, and the output shaft of the gear accelerator structure 51 is coaxially connected with the wire adjusting part 7 and the ratchet structure 52, so as to utilize the output power of the DC motor 4 to transmit through the gear accelerator structure 51 to drive the wire adjusting part 7 to work, and at the same time, the ratchet structure 52 is used to effectively and stably prevent the wire adjusting part 7 from reversing under heavy pressure.

[0040] The line adjusting part 7 may adopt, but is not limited to, rotating a toothed guide wheel disposed inside the line tightening machine body 1 to drive a guide rope or chain to lift or lower a heavy object through the toothed guide wheel.

[0041] Specifically, refer to Figure 5 , the tensioning machine body 1 is also rotatably provided with a limit pawl 53 that cooperates with the ratchet structure 52; and the tensioning machine body 1 is respectively fixedly provided with a spring seat 54 and a limit jacking shaft 56, and a limit spring 55 is provided between the spring seat 54 and the limit pawl 53, so as to form a ratchet pawl structure by utilizing the limit pawl 53, the limit spring 55 and the ratchet structure 52; the limit jacking shaft 56 is provided with a limit handle body 57, so as to utilize the limit handle body 57 to make the jacking rod inside the limit jacking shaft 56 slide, thereby realizing jacking up or releasing the limit jacking shaft 56, so as to release the anti-reversal function and enter the neutral state, and then the guide rope can be manually pulled in two directions to realize the no-load chain running function, and the line adjustment part 7 can be rotated and paid out under specific working conditions through the DC motor 4, etc., maintaining the characteristics of the original hand-operated hoist in the neutral quick-draw chain.

[0042] Preferably, reference Figure 6-7 The gear accelerator structure 51 is also provided with a clutch assembly 6. Specifically, the gear accelerator structure 51 includes a meshing driving gear 511 and a driven gear 512, wherein the driving gear 511 is keyed to the output shaft of the DC motor 4, and a clutch slideway 513 is provided on the inner side of the driving gear 511 at a position corresponding to the assembly key, so that the driving gear 511 can slide axially along the output shaft of the DC motor 4 using the clutch slideway 513.

[0043] The clutch assembly 6 includes a gear handwheel 61, a return spring 62, a bearing seat 63, and a positioning bolt 64. The driving gear 511 is fixedly connected to the bearing seat 63. A bearing is arranged in the bearing seat 63. The rod body on the gear handwheel 61 is assembled with the bearing so that the gear handwheel 61 can drive the bearing seat 63 and the driving gear 511 when it is displaced. The positioning bolt 64 is fixedly arranged on the rod body of the gear handwheel 61, and the positioning bolt 64 is connected to the output shaft of the DC motor 4. The gear handwheel 61 is screwed together to allow it to be rotated and moved out, and the bearing can be used to improve the rotation stability of the gear handwheel 61; the return spring 62 is arranged between the wheel body of the gear handwheel 61 and the bearing seat 63, so as to ensure the assembly stability between the driving gear 511 and the driven gear 512 with the help of the elastic force of the return spring 62; the gear accelerator structure 51 and the DC motor 4 can be clutched through the clutch assembly, so as to release the limiting effect of the driving gear 511 on the driven gear 512, and realize the manual function.

[0044] It should be noted that the tensioning machine body 1 is also provided with openings for operating the limit handle body 57 and the gear hand wheel 61 respectively.

[0045] The regulating part 3 is fixedly arranged on one side end of the tensioning body 1, and a 48V mobile power supply, a speed regulator, a microcontroller and a WIFI module are fixedly connected inside the regulating part 3, wherein the output end of the 48V mobile power supply is electrically connected to the microcontroller and the speed regulator respectively, and the speed regulator is electrically connected to the DC motor 4 to realize the adjustment of parameters such as the speed and stroke of the DC motor 4 through the speed regulator; the microcontroller is electrically connected with a WIFI module, and the WIFI module is connected to a mobile control end through a remote signal, and the output end of the microcontroller is electrically connected to the speed regulator to effectively realize the remote operation of lifting and lowering high-altitude heavy objects through the mobile control end with the help of remote control technology.

[0046] It should be noted that the 48V mobile power supply is composed of four 12V batteries of model LY60 connected in series; the speed regulator adopts a DC motor speed regulator of model CCM5D; the DC motor 4 adopts a DC motor of model ZYC-130-20 with a power of 750W; the microcontroller adopts model STM32; the WIFI module adopts a serial port WIFI module of model ESP8266MOD; the mobile control terminal can be used but not limited to a mobile phone or a mobile tablet.

[0047] The use process of this portable DC tensioner is as follows:

[0048] When in use, first use the hanging buckle 2 to hang the device at a predetermined position, start the 48V mobile power supply and the DC motor 4, and the DC motor 4 transmits power to the line adjusting part 7 through the gear accelerator structure 51 in the transmission assembly 5. At the same time, the ratchet structure 52 effectively prevents the line adjusting part 7 from rotating.

[0049] You can also choose remote control speed regulation according to the actual working conditions, and use the data signal sent by the mobile control terminal to the WIFI module to enable the microcontroller to control the speed regulator to adjust the speed and stroke parameters of the DC motor.

[0050] When manual operation is adopted, the limit handle body 57 is pushed forward to extend the push rod in the limit push shaft 56, and the extended push rod contacts the limit pawl 53 to disengage the ratchet structure 52, so that the ratchet structure 52 enters a neutral state; then the gear handwheel 61 is rotated to move out of the position so that the position of the driving gear 511 on the output shaft of the DC motor 4 moves, and the driving gear 511 and the driven gear 512 are dislocated and clutched, thereby cutting off the transmission effect between the DC motor 4 and the gear accelerator structure 51, releasing the limiting effect of the driving gear 511 on the driven gear 512, and causing the driven gear 512 to enter a neutral state, so that it is possible to manually pull the guide rope or chain in two directions, thereby realizing the no-load chain running function.

[0051] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. Portable DC tensioning machine, characterized by: It includes a tensioning machine body, and a regulating part and a DC motor respectively arranged on the tensioning machine body; wherein, The interior of the wire tightening machine body is respectively provided with a transmission assembly and a wire adjusting part; The transmission assembly includes a gear accelerator structure and a ratchet structure, the input shaft of the gear accelerator structure is transmission-connected with the output shaft of the DC motor, and the output shaft of the gear accelerator structure is coaxially transmission-connected with the line adjustment part and the ratchet structure respectively; A mobile power source, a speed regulator, a microcontroller and a WIFI module are fixedly connected inside the control unit, wherein the output end of the mobile power source is electrically connected to the microcontroller and the speed regulator, respectively, and the speed regulator is electrically connected to the DC motor; The microcontroller is electrically connected with a WIFI module, the WIFI module is connected to a mobile control terminal via a remote signal, and the output end of the microcontroller is electrically connected to the speed regulator; The gear accelerator structure is also provided with a clutch assembly; The gear accelerator structure comprises a meshing driving gear and a driven gear; wherein the driving gear is keyed to the output shaft of the DC motor, and a clutch slideway is provided inside the driving gear at a position corresponding to the assembly key; The clutch assembly comprises a gear hand wheel and a positioning bolt, wherein the positioning bolt is fixedly arranged on the rod body of the gear hand wheel, and the positioning bolt is threadedly engaged with the output shaft of the DC motor; The clutch assembly further comprises a bearing seat, the driving gear is fixedly connected to the bearing seat, a bearing is arranged in the bearing seat, and the rod body on the gear hand wheel is assembled with the bearing; The clutch assembly also includes a return spring, which is arranged between the wheel body of the gear handwheel and the bearing seat.

2. The portable DC tightening machine according to claim 1, characterized in that: A hanging buckle is fixedly arranged on the top of the tightening machine body.

3. The portable DC tensioner according to claim 1, characterized in that: The tightening machine body is also rotatably provided with a limiting pawl that cooperates with the ratchet structure; A spring seat and a limit push shaft are fixedly connected to the tensioning machine body respectively, a limit spring is arranged between the spring seat and the limit pawl, and a ratchet pawl structure is formed by utilizing the limit pawl, the limit spring and the ratchet structure, and a limit handle body is arranged on the limit push shaft.

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