Transmission mechanism of heavy-load holder

Abstract

The utility model provides a transmission mechanism of a heavy-load holder, and belongs to the technical field of heavy-load holders. The transmission mechanism of the heavy-load holder comprises a bottom cover, a base, a shell, a first speed reducer, a first stepping motor, a first gear transmission part, a driven shaft sleeve, a second speed reducer, a second stepping motor, a second gear transmission part, a side plate, a supporting flat plate and a locking mechanism. According to the transmission mechanism of the heavy-load holder, the gravity center of the first speed reducer and the gravity center of the first stepping motor are lowered, the load is 1150 kilograms through the mode that the gravity center is lowered through the structure, the actual use requirement is met, in addition, rapid assembly of the outer shell and the inner shaft sleeve of the first speed reducer is achieved through the locking mechanism, and the service life of the heavy-load holder is prolonged. Bolt installation is eliminated, the assembling efficiency between the shell and the inner shaft sleeve of the first speed reducer is improved, and better use experience is brought to a user.

Description

Technical Field

[0001] The present application relates to the technical field of heavy-loaded pan-tilt platforms, and in particular to a transmission mechanism of a heavy-loaded pan-tilt platform. Background Art

[0002] Heavy-duty PTZ is an essential component of the coastal security system. It has high precision, good sealing, strong resistance to high and low temperatures, and is suitable for work locations with harsh environmental climates. Due to the harsh marine environment, the connection and sealing of the transmission device are very high. The transmission device is divided into two parts: horizontal and vertical. The maximum load of the PTZ refers to the maximum load capacity in the vertical direction. At present, the equipment environment of the offshore platform is harsh. Due to structural reasons, the conventional platform can only carry a weight of less than 40 kilograms. Because the load cannot meet the use requirements, a heavy-duty PTZ with a high load weight is now needed to meet the actual use requirements.

[0003] After searching, the Chinese patent number is CN202322601240.4, which discloses a transmission mechanism of a heavy-duty gimbal, belonging to the technical field of heavy-duty gimbals. The transmission mechanism of the heavy-duty gimbal includes a bottom cover, a base, a housing, a first reducer, a first stepper motor, a first gear transmission member, a driven shaft sleeve, a second reducer, a second stepper motor, a second gear transmission member, a side plate and a support plate. When in use, the rotation of the output shaft of the first stepper motor drives the first gear transmission member to rotate, and the rotation of the first gear transmission member drives the inner shaft of the first reducer to rotate, so as to realize the horizontal rotation of the support plate. The rotation of the output shaft of the second stepper motor drives the second gear transmission member to rotate, and the rotation of the second gear transmission member drives the inner shaft of the second reducer to rotate, so as to realize the large-angle rotation of the support plate in the vertical direction. The transmission mechanism of the heavy-duty gimbal lowers the center of gravity of the first reducer and the first stepper motor, and realizes the load of 150 kilograms by lowering the center of gravity through the structure, which meets the actual use requirements.

[0004] However, the above solution still has defects. Multiple bolts are needed to fix the outer shell to the inner sleeve of the first reducer. Such installation is too time-consuming and labor-intensive, reducing the assembly efficiency between the outer shell and the inner sleeve of the first reducer, and bringing a bad user experience. Utility Model Content

[0005] In order to remedy the above shortcomings, the present application provides a transmission mechanism for a heavy-loaded pan / tilt head, aiming to improve the problem that multiple bolts are required to fix the outer casing to the inner sleeve of the first reducer, and such installation is too time-consuming and labor-intensive, reducing the assembly efficiency between the outer casing and the inner sleeve of the first reducer.

[0006] This application is implemented as follows:

[0007] The present application provides a transmission mechanism of a heavy-duty pan / tilt head, comprising a bottom cover, a base, a shell, a first reducer, a first stepper motor, a first gear transmission member, a driven shaft sleeve, a second reducer, a second stepper motor, a second gear transmission member, a side plate, a support plate, and a locking mechanism, wherein the base is fixed to the upper surface of the bottom cover, the first reducer is fixed to the base, the first stepper motor is arranged on the first reducer, the output shaft of the first stepper motor and the inner shaft of the first reducer are connected together by the first gear transmission member, and the shell is fixed to the inner shaft sleeve of the first reducer;

[0008] The housing is also rotatably arranged on the base, the second reducer is fixed in the housing, the second stepper motor is arranged on the second reducer, the output shaft of the second stepper motor and the inner shaft of the second reducer are transmission-connected together through the second gear transmission member, the driven shaft sleeve is fixedly sleeved on the inner shaft of the second reducer, the side plate is fixed on the driven shaft sleeve, and the supporting plate is fixed on the side plate;

[0009] The locking mechanism is arranged on the outer shell and the inner sleeve of the first reducer at the same time, and the locking mechanism is arranged to quickly install the outer shell on the inner sleeve of the first reducer.

[0010] In one embodiment of the present application, an end cover is fixed to the end of the driven shaft sleeve, and the end cover and the inner shaft of the second reducer are arranged correspondingly.

[0011] In one embodiment of the present application, threaded rods are threadedly inserted into the side plates and the support plate, and nuts are threadedly sleeved on the threaded rods.

[0012] In one embodiment of the present application, the locking mechanism includes a first arc-shaped plate, a column, a ring, a second arc-shaped plate, a spring, a pin and a bolt, the column is fixed on the upper surface of the first arc-shaped plate, and the column simultaneously passes through the inner sleeve of the first reducer and the outer shell;

[0013] The circular ring is fixed on the upper surface of the shell, the spring is fixed between the circular ring and the second arc-shaped plate, one end of the pin rod is fixed on the outer wall of the second arc-shaped plate, the pin rod slides through the circular ring, the column and the spring at the same time, and the bolt thread penetrates the circular ring.

[0014] In one embodiment of the present application, the bottom cover and the base are provided with the same first mounting holes, and a plurality of the first mounting holes are axially equidistantly arranged on the bottom cover and the base.

[0015] In one embodiment of the present application, a second mounting hole is opened on the side plate, and a plurality of the second mounting holes are provided, and the plurality of the second mounting holes are axially equidistantly arranged on the side plate.

[0016] In one embodiment of the present application, a sealing gasket is further included, and the sealing gasket is arranged between the outer shell and the inner sleeve of the first reducer.

[0017] The beneficial effects of the present application are as follows: the transmission mechanism of the heavy-duty pan / tilt head obtained by the present application through the above-mentioned design, when in use, the support plate is set on the side plate, and then the threaded rod is threaded through the side plate and the support plate, and the nut is threadedly sleeved on the side plate to fix the support plate to the side plate, so that the support plate and the side plate can be quickly installed together, and the method of using multiple bolts to install the support plate and the side plate together is abandoned. In the process of assembling the outer shell and the inner sleeve of the first reducer together, the bolt is rotated, and the bolt squeezes the second arc plate to make the end of the pin rod enter the ring, and then the column on the first arc plate passes through the inner sleeve and the outer shell of the first reducer, and the bolt is rotated in the opposite direction to make the bolt away from the second arc plate, and the pin rod passes through the ring and the column under the reaction of the spring, that is, the outer shell and the first reducer are realized. The inner sleeve of the first stepper motor is assembled, and the rotation of the output shaft drives the first gear transmission member to rotate, and the rotation of the first gear transmission member drives the inner shaft of the first reducer to rotate, so as to realize the horizontal rotation of the supporting plate; the rotation of the output shaft of the second stepper motor drives the second gear transmission member to rotate, and the rotation of the second gear transmission member drives the inner shaft of the second reducer to rotate, so as to realize the large-angle rotation of the supporting plate in the vertical direction; the transmission mechanism of the heavy-loaded pan-tilt head lowers the center of gravity of the first reducer and the first stepper motor, and realizes the load of 150 kilograms by lowering the center of gravity through the structure, which meets the actual use requirements; in addition, the locking mechanism is used to realize the rapid assembly of the outer shell and the inner sleeve of the first reducer, and the bolt installation is eliminated, thereby improving the assembly efficiency between the outer shell and the inner sleeve of the first reducer, and bringing a better use experience to the user. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the implementation methods of the present application, the drawings required for use in the implementation methods will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 It is a three-dimensional structural schematic diagram of a transmission mechanism of a heavy-duty pan / tilt platform provided in an embodiment of the present application;

[0020] Figure 2 A schematic diagram of the three-dimensional structure of a housing provided in an embodiment of the present application;

[0021] Figure 3 A diagram showing the relationship between the base and the first reducer provided in the embodiment of the present application;

[0022] Figure 4 A relationship diagram between the first reducer and the first stepper motor provided in an embodiment of the present application;

[0023] Figure 5 A relationship diagram between the second reducer and the second stepper motor provided in an embodiment of the present application;

[0024] Figure 6 A diagram showing the relationship between the side panels and the support platform provided for the embodiments of the present application;

[0025] Figure 7 A schematic diagram of the three-dimensional structure of the locking mechanism provided in an embodiment of the present application.

[0026] In the figure: 110 - bottom cover; 120 - base; 130 - housing; 140 - first reducer; 150 - first stepper motor; 160 - first gear transmission member; 170 - driven sleeve; 180 - second reducer; 190 - second stepper motor; 191 - second gear transmission member; 192 - end cover; 193 - side plate; 194 - support plate; 195 - threaded rod; 196 - nut; 197 - locking mechanism; 1971 - first arc plate; 1972 - column; 1973 - ring; 1974 - second arc plate; 1975 - spring; 1976 - pin rod; 1977 - bolt; 198 - first mounting hole; 199 - second mounting hole; 1990 - sealing gasket. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical solutions and advantages of the implementation methods of this application clearer, the technical solutions in the implementation methods of this application will be clearly and completely described below in conjunction with the drawings in the implementation methods of this application. Obviously, the described implementation methods are part of the implementation methods of this application, not all of the implementation methods. Based on the implementation methods in this application, all other implementation methods obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0028] Example

[0029] See also Figure 1 - Figure 7The present application provides a technical solution: a transmission mechanism of a heavy-duty pan / tilt head, comprising a bottom cover 110, a base 120, a housing 130, a first reducer 140, a first stepper motor 150, a first gear transmission member 160, a driven shaft sleeve 170, a second reducer 180, a second stepper motor 190, a second gear transmission member 191, a side plate 193 and a supporting plate 194, the base 120 is fixed on the upper surface of the bottom cover 110, and the bottom cover 110 and the base 120 are provided with the same first mounting hole 190. 8. A plurality of first mounting holes 198 are axially equidistantly arranged on the bottom cover 110 and the base 120. The plurality of first mounting holes 198 facilitate installation and fixation of the bottom cover 110 and the base 120. The first reducer 140 is fixed on the base 120. The first stepper motor 150 is arranged on the first reducer 140. The output shaft of the first stepper motor 150 and the inner shaft of the first reducer 140 are connected together by transmission through the first gear transmission member 160. The housing 130 is fixed on the inner sleeve of the first reducer 140.

[0030] The housing 130 is also rotatably arranged on the base 120, the second reducer 180 is fixed in the housing 130, the second stepper motor 190 is arranged on the second reducer 180, the output shaft of the second stepper motor 190 and the inner shaft of the second reducer 180 are connected together by a second gear transmission member 191, the driven shaft sleeve 170 is fixedly sleeved on the inner shaft of the second reducer 180, the side plate 193 is fixed on the driven shaft sleeve 170, and the end of the driven shaft sleeve 170 is fixed with an end cover 192, the end cover 192 is arranged corresponding to the inner shaft of the second reducer 180, and the arrangement of the end cover 192 is convenient for the first reducer 180 to be rotated. The inner shaft of the second reducer 180 is protected, the support plate 194 is fixed on the side plate 193, the side plate 193 and the support plate 194 are threadedly inserted with a threaded rod 195, and the threaded rod 195 is threadedly sleeved with a nut 196. The arrangement of the threaded rod 195 and the nut 196 facilitates the rapid installation of the support plate 194 on the side plate 193, and the side plate 193 is provided with a second mounting hole 199, and the second mounting hole 199 is provided with a plurality of second mounting holes 199, and the plurality of second mounting holes 199 are axially equidistantly arranged on the side plate 193, and the arrangement of the second mounting holes 199 facilitates the installation of the side plate 193 on the driven shaft sleeve 170;

[0031] The locking mechanism 197 is provided on both the housing 130 and the inner sleeve of the first reducer 140. The locking mechanism 197 is provided to quickly install the housing 130 on the inner sleeve of the first reducer 140. The locking mechanism 197 includes a first arc plate 1971, a column 1972, a ring 1973, a second arc plate 1974, a spring 1975, a pin 1976 and a bolt 1977. The column 1972 is fixed on the upper surface of the first arc plate 1971. The column 1972 also penetrates the inner sleeve of the first reducer 140. The inner sleeve and the outer sleeve 130, the ring 1973 is fixed on the upper surface of the outer sleeve 130, the spring 1975 is fixed between the ring 1973 and the second arc plate 1974, one end of the pin 1976 is fixed on the outer wall of the second arc plate 1974, the pin 1976 slides through the ring 1973, the column 1972 and the spring 1975 at the same time, the bolt 1977 threadedly penetrates the ring 1973, and also includes a sealing gasket 1990, which is arranged between the outer sleeve 130 and the first reducer 140.

[0032] Specifically, the working principle of the transmission mechanism of the heavy-duty pan / tilt head is as follows: when in use, the support plate 194 is placed on the side plate 193, and then the threaded rod 195 is threaded through the side plate 193 and the support plate 194, and the nut 196 is threadedly sleeved on the side plate 193 to fix the support plate 194 on the side plate 193, so that the support plate 194 and the side plate 193 are quickly installed together, eliminating the method of installing the support plate 194 and the side plate 193 together by using multiple bolts. During the process of assembling the inner sleeve of the first reducer 140, the bolt 1977 is rotated, and the bolt 1977 squeezes the second arc plate 1974 to make the end of the pin 1976 enter the ring 1973, and then the column 1972 on the first arc plate 1971 passes through the inner sleeve of the first reducer 140 and the housing 130, and the bolt 1977 is rotated in the opposite direction to make the bolt 1977 away from the second arc plate 1974. The pin 1976 passes through the ring 1973 and the outer shell 130 under the reaction of the spring 1975. The column 1972 realizes the assembly of the outer shell 130 and the inner sleeve of the first reducer 140. The rotation of the output shaft of the first stepper motor 150 drives the first gear transmission member 160 to rotate. The rotation of the first gear transmission member 160 drives the inner shaft of the first reducer 140 to rotate, so as to realize the horizontal rotation of the support plate 194. The rotation of the output shaft of the second stepper motor 190 drives the second gear transmission member 191 to rotate. The rotation of the second gear transmission member 191 drives the inner shaft of the second reducer 180 to rotate, so as to realize the large-angle rotation of the support plate 194 in the vertical direction. The transmission mechanism of the heavy-duty pan-tilt head lowers the center of gravity of the first reducer 140 and the first stepper motor 150. The load is achieved at 150 kilograms by lowering the center of gravity through the structure, which meets the actual use requirements. In addition, the locking mechanism 197 is used to realize the rapid assembly of the inner sleeve of the outer shell 130 and the first reducer 140, eliminating the bolt installation, improving the assembly efficiency between the inner sleeve of the outer shell 130 and the first reducer 140, and bringing better use experience to users.

[0033] It should be noted that the specific models and specifications of the first reducer 140, the first stepper motor 150, the second reducer 180 and the second stepper motor 190 need to be selected and determined according to the actual specifications of the device, etc. The specific selection calculation method adopts the existing technology in this field, so it will not be described in detail.

[0034] The power supply and principle of the first reducer 140 , the first stepper motor 150 , the second reducer 180 , and the second stepper motor 190 are clear to those skilled in the art and will not be described in detail herein.

[0035] The above are only embodiments of the present application and are not intended to limit the scope of protection of the present application. For those skilled in the art, the present application may have various changes and variations. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present application should be included in the scope of protection of the present application. It should be noted that similar reference numerals and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further defined and explained in the subsequent drawings.

Claims

1. A transmission mechanism for a heavy-duty pan / tilt head, characterized in that: The invention comprises a bottom cover (110), a base (120), a housing (130), a first reducer (140), a first stepper motor (150), a first gear transmission member (160), a driven shaft sleeve (170), a second reducer (180), a second stepper motor (190), a second gear transmission member (191), a side plate (193), a supporting plate (194) and a locking mechanism (197), wherein the base (120) is fixed on the upper surface of the bottom cover (110), the first reducer (140) is fixed on the base (120), the first stepper motor (150) is arranged on the first reducer (140), the output shaft of the first stepper motor (150) and the inner shaft of the first reducer (140) are connected together by transmission through the first gear transmission member (160), and the housing (130) is fixed on the inner shaft sleeve of the first reducer (140); The housing (130) is also rotatably arranged on the base (120); the second reducer (180) is fixed in the housing (130); the second stepper motor (190) is arranged on the second reducer (180); the output shaft of the second stepper motor (190) and the inner shaft of the second reducer (180) are connected together by transmission via the second gear transmission member (191); the driven shaft sleeve (170) is fixedly sleeved on the inner shaft of the second reducer (180); the side plate (193) is fixed on the driven shaft sleeve (170); and the supporting plate (194) is fixed on the side plate (193); The locking mechanism (197) is arranged on both the outer shell (130) and the inner sleeve of the first reducer (140). The locking mechanism (197) is used to quickly install the outer shell (130) on the inner sleeve of the first reducer (140).

2. The transmission mechanism of a heavy-duty pan / tilt head according to claim 1, characterized in that: An end cover (192) is fixed to the end of the driven shaft sleeve (170), and the end cover (192) and the inner shaft of the second reducer (180) are arranged correspondingly.

3. The transmission mechanism of a heavy-duty pan / tilt head according to claim 1, characterized in that: A threaded rod (195) is threadedly inserted on the side plate (193) and the supporting plate (194), and a nut (196) is threadedly sleeved on the threaded rod (195).

4. The transmission mechanism of a heavy-duty pan / tilt head according to claim 1, characterized in that: The locking mechanism (197) comprises a first arc-shaped plate (1971), a column (1972), a ring (1973), a second arc-shaped plate (1974), a spring (1975), a pin (1976) and a bolt (1977); the column (1972) is fixed on the upper surface of the first arc-shaped plate (1971); the column (1972) simultaneously passes through the inner sleeve of the first reducer (140) and the outer shell (130); The circular ring (1973) is fixed on the upper surface of the housing (130), the spring (1975) is fixed between the circular ring (1973) and the second arc-shaped plate (1974), one end of the pin rod (1976) is fixed on the outer wall of the second arc-shaped plate (1974), the pin rod (1976) slides through the circular ring (1973), the column (1972) and the spring (1975) at the same time, and the bolt (1977) is threadedly inserted through the circular ring (1973).

5. The transmission mechanism of a heavy-duty pan / tilt head according to claim 1, characterized in that: The bottom cover (110) and the base (120) are provided with the same first mounting holes (198), and a plurality of the first mounting holes (198) are axially equidistantly arranged on the bottom cover (110) and the base (120).

6. The transmission mechanism of a heavy-duty pan / tilt head according to claim 1, characterized in that: The side plate (193) is provided with a second mounting hole (199), and a plurality of the second mounting holes (199) are provided, and the plurality of the second mounting holes (199) are axially equidistantly arranged on the side plate (193).

7. The transmission mechanism of a heavy-duty pan / tilt head according to claim 1, characterized in that: It also includes a sealing gasket (1990), which is arranged between the housing (130) and the inner sleeve of the first reducer (140).

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