Small gear shifting type driving transmission device for multi-path phase shifter

Abstract

The utility model discloses a miniature shift type driving transmission device for a multipath phase shifter, which relates to the technical field of multipath phase shifters and comprises a fixed bottom plate, a shell A is detachably mounted at the top end of one side of the fixed bottom plate, a shell B is detachably mounted at the top end of one side of the shell A, and a shell C is detachably mounted at the top end of one side of the shell B. A cam shaft rotates to drive a cam to rotate to drive a push rod to stretch and retract to adjust the position, buffer connection is achieved through a second spring on the surface of the side face of the push rod, the push rod drives a driving gear to rotate, the driving gear drives transmission control between a driven gear and a clutch gear, and a pull rod directly penetrates through a shell C and a shell B; the driving operation of the driving screw is arranged on the side face of the pull rod, the buffering effect of the first spring is arranged on one side of the driving screw, the service life of the pull rod is prolonged, and the RET assembly is directly connected with power equipment to achieve power connection control operation.

Description

Technical Field

[0001] This utility model relates to the field of multi-channel phase shifter technology, and in particular to a small shift-type drive transmission device for multi-channel phase shifters. Background Technology

[0002] In mobile communication networks, base station antennas, as one of the key network devices, face increasingly stringent requirements for high integration. Multi-band antennas also present greater challenges in terms of performance, size, and weight. Phase shifters, as a core component of base station antennas, adjust the antenna's downtilt angle by changing the electrical phase amplitude. Therefore, multi-band base station antennas require more phase shifters within a limited space. This also increases the number of transmission components needed to drive the phase shifters. A typical multi-axis switching transmission device for phase shifters consists of three modules: 1. a motor control module, 2. a transmission switching module, and 3. a drive module. These three modules are interconnected in sequence, resulting in a very large space occupied by the entire module. Therefore, the transmission switching device can be further miniaturized. Thus, we redesigned a small-scale shifting drive transmission device for multi-channel phase shifters. Utility Model Content

[0003] The purpose of this invention is to provide a small shift-type drive transmission device for multi-channel phase shifters.

[0004] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a small shifting drive transmission device for a multi-channel phase shifter, including a fixed base plate, a housing A detachably mounted on one top side of the fixed base plate, a housing B detachably mounted on one top side of the housing A, a housing C detachably mounted on one top side of the housing B, a pull rod movably mounted inside one side of the housing C, a first spring movably mounted on one surface of the pull rod, and a drive screw movably mounted on one side of the first spring.

[0005] Preferably, a camshaft is rotatably connected to the bottom end of the fixed base plate near the pull rod, a worm gear is provided on one side surface of the camshaft, a worm is movably installed on one side of the worm gear, and a cam is fixedly sleeved on one side surface of the camshaft.

[0006] Preferably, a push rod is movably connected to the top of the fixed base plate near the cam, a second spring is movably installed on one side surface of the push rod, and a buckle is movably engaged at the top of one side of the push rod.

[0007] Preferably, a drive gear is drivenly mounted on one bottom side of the push rod, a driven gear is drivenly connected to one bottom side of the drive gear, and a clutch gear is provided on one side surface of the driven gear.

[0008] Preferably, a coupling is fixedly installed at one bottom side of the housing C, an end cap is fixedly installed at one top side of the coupling, a transmission gear is rotatably connected to one top side of the coupling, and a RET assembly is fixedly installed inside one top side of the fixed base plate.

[0009] Preferably, the connection between the outer shell A and the outer shell B is a movable snap-fit, the connection between the outer shell B and the outer shell C is a movable snap-fit, and the number of the pull rods is several, with the several pull rods evenly distributed inside the outer shell B.

[0010] Preferably, the positions of the cam and the push rod correspond one-to-one, the connection between the cam and the push rod is a force-resistant connection, and the connection between the second spring and the push rod is a movable sleeve connection.

[0011] Preferably, the driving gear and the driven gear are connected in a meshing relationship, the driving gear and the clutch gear are connected in a meshing relationship, and the driving gear and the drive screw are connected in a meshing relationship.

[0012] Compared with related technologies, the miniature shifting drive transmission device for multi-channel phase shifters provided by this utility model has the following advantages:

[0013] Beneficial effects:

[0014] This utility model provides a small shift-type drive transmission device for a multi-channel phase shifter. The rotation of the camshaft drives the rotation of the cam, which in turn drives the extension and retraction of the push rod to adjust its position. A second spring on the side surface of the push rod provides a buffer connection. The push rod drives the rotation of the drive gear, which in turn drives the transmission control between the driven gear and the clutch gear. The pull rod passes directly through the interior of housings C and B. A drive screw is located on the side of the pull rod for driving operations. A first spring on one side of the drive screw provides a buffering effect, improving the service life of the pull rod. The RET component is directly connected to the power equipment to achieve power connection control operations. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0016] Figure 2 This is a schematic diagram of the camshaft structure of this utility model;

[0017] Figure 3 This is a schematic diagram of the disassembled side view of the device of this utility model;

[0018] Figure 4 This is a schematic diagram of the coupling structure of this utility model.

[0019] The following are the labeling elements in the diagram: 1. Fixed base plate; 2. Housing A; 3. Housing B; 4. Housing C; 5. Pull rod; 6. First spring; 7. Drive screw; 8. Camshaft; 9. Worm gear; 10. Worm; 11. Cam; 12. Push rod; 13. Second spring; 14. Buckle; 15. Drive gear; 16. Driven gear; 17. Clutch gear; 18. Coupling; 19. End cover; 20. Transmission gear; 21. RET assembly. Detailed Implementation

[0020] Example 1:

[0021] Please see Figure 1-4 This utility model provides a technical solution: a small shifting drive transmission device for a multi-channel phase shifter, including a fixed base plate 1, a housing A2 detachably mounted on one side top of the fixed base plate 1, a housing B3 detachably mounted on one side top of the housing A2, a housing C4 detachably mounted on one side top of the housing B3, a pull rod 5 movably mounted inside one side of the housing C4, a first spring 6 movably mounted on one side surface of the pull rod 5, a drive screw 7 movably mounted on one side of the first spring 6, a camshaft 8 rotatably connected to the bottom end of the fixed base plate 1 near the pull rod 5, a worm gear 9 provided on one side surface of the camshaft 8, a worm 10 movably mounted on one side of the worm gear 9, and a fixed... A cam 11 is fixedly connected to the fixed base plate 1. A push rod 12 is movably connected to the top of the side of the fixed base plate 1 near the cam 11. A second spring 13 is movably installed on one side surface of the push rod 12. A buckle 14 is movably engaged at the top of one side of the push rod 12. A drive gear 15 is drivenly installed at the bottom of one side of the push rod 12. A driven gear 16 is drivenly connected to the bottom of one side of the drive gear 15. A clutch gear 17 is provided on one side surface of the driven gear 16. A coupling 18 is fixedly installed at the bottom of one side of the housing C4. An end cover 19 is fixedly installed at the top of one side of the coupling 18. A transmission gear 20 is rotatably connected to the top surface of one side of the coupling 18. A RET assembly 21 is fixedly installed inside the top of one side of the fixed base plate 1.

[0022] The connection between housing A2 and housing B3 is a movable snap-fit, the connection between housing B3 and housing C4 is a movable snap-fit, there are several pull rods 5, which are evenly distributed inside housing B3, the positions of cam 11 and push rod 12 correspond one-to-one, the connection between cam 11 and push rod 12 is a resistance connection, the connection between second spring 13 and push rod 12 is a movable sleeve connection, the connection between driving gear 15 and driven gear 16 is a meshing connection, the connection between driving gear 15 and clutch gear 17 is a meshing connection, and the connection between driving gear 15 and drive screw 7 is a meshing connection.

[0023] In the implementation scheme, the rotation of the camshaft 8 drives the rotation of the cam 11, which in turn drives the extension and retraction adjustment of the push rod 12. The second spring 13 on the side surface of the push rod 12 provides a buffer connection. The push rod 12 drives the rotation of the drive gear 15, which in turn drives the transmission control between the driven gear 16 and the clutch gear 17. The pull rod 5 passes directly through the interior of the housing C4 and the housing B3. The drive screw 7 is set on the side of the pull rod 5 for driving operations. The first spring 6 is set on one side of the drive screw 7 for buffering effect, which improves the service life of the pull rod 5. The RET assembly 21 is directly connected to the power equipment to realize the power connection control operation.

[0024] Working principle:

[0025] The rotation of the camshaft 8 drives the rotation of the cam 11, which in turn drives the extension and retraction adjustment of the push rod 12. The second spring 13 on the side surface of the push rod 12 provides a buffer connection. The push rod 12 drives the rotation of the drive gear 15, which in turn drives the transmission control between the driven gear 16 and the clutch gear 17. The pull rod 5 passes directly through the interior of the housing C4 and the housing B3. The drive screw 7 is set on the side of the pull rod 5 for driving operations. The first spring 6 is set on one side of the drive screw 7 for buffering effect, which improves the service life of the pull rod 5. The RET assembly 21 is directly connected to the power equipment to realize the power connection control operation.

[0026] Specific connection method: Place the spring on the push rod shaft, then insert the push rod into the circular groove inside housing B. After the push rod shaft passes through housing B, place the clutch gear on the other end of the push rod shaft and secure it with a clip in the groove of the push rod. The number of push rods and other components can be repeatedly installed according to the number of phase shifters.

[0027] The worm gear is inserted into the camshaft, and the remaining cams are sequentially fed into the camshaft from both sides. The entire camshaft is then fixed in the semi-circular groove of housing B. The worm and shaft are also inserted into the corresponding holes in housing B. Housing C is passed through the worm and shaft, and housing C and housing B form a closed circular groove to fix the camshaft inside the housing. Transmission gears A and B are fitted onto the shaft on the other side of housing B, and the drive screw and tie rod are threaded together and passed through housing B. Housings A and B are then fitted together and fixed, enclosing the transmission gear assembly inside the housing. Finally, the coupling and transmission gear B are fitted onto the shaft at the outer end of housing C, and the end cover is fixed to the outer end of housing C. At this point, the entire shift assembly (transmission switching module) is assembled. Finally, it is fixed to the mounting plate together with the RET assembly (motor control module), thus completing the assembly of the entire system.

Claims

1. A small shift-type drive transmission device for a multi-channel phase shifter, comprising a fixed base plate (1), wherein a housing A (2) is detachably mounted on one side top of the fixed base plate (1), characterized in that: A shell B (3) is detachably installed on one side of the top of the shell A (2), and a shell C (4) is detachably installed on one side of the top of the shell B (3). A pull rod (5) is movably installed inside one side of the shell C (4), and a first spring (6) is movably installed on one side of the pull rod (5). A drive screw (7) is movably installed on one side of the first spring (6).

2. The miniature shifting drive transmission device for a multi-channel phase shifter according to claim 1, characterized in that, The fixed base plate (1) is rotatably connected to a camshaft (8) on the bottom end near the pull rod (5). A worm gear (9) is provided on one side surface of the camshaft (8). A worm (10) is movably installed on one side of the worm gear (9). A cam (11) is fixedly sleeved on one side surface of the camshaft (8).

3. The miniature shifting drive transmission device for a multi-channel phase shifter according to claim 1, characterized in that, The fixed base plate (1) is movably connected to the top of the side near the cam (11) with a push rod (12), and a second spring (13) is movably installed on one side surface of the push rod (12). A buckle (14) is movably engaged at the top of one side of the push rod (12).

4. A small shift-type drive transmission device for a multi-channel phase shifter according to claim 3, characterized in that, A drive gear (15) is drivenly mounted on one side of the bottom end of the push rod (12), and a driven gear (16) is drivenly connected to one side of the bottom end of the drive gear (15). A clutch gear (17) is provided on one side surface of the driven gear (16).

5. A small shift-type drive transmission device for a multi-channel phase shifter according to claim 1, characterized in that, A coupling (18) is fixedly installed on one bottom side of the outer casing C (4), an end cap (19) is fixedly installed on one top side of the coupling (18), a transmission gear (20) is rotatably connected to one top side of the coupling (18), and a RET assembly (21) is fixedly installed inside one top side of the fixed base plate (1).

6. A small shift-type drive transmission device for a multi-channel phase shifter according to claim 1, characterized in that, The connection between the outer shell A (2) and the outer shell B (3) is a movable snap-fit, the connection between the outer shell B (3) and the outer shell C (4) is a movable snap-fit, and there are several pull rods (5), which are evenly distributed inside the outer shell B (3).

7. A small shift-type drive transmission device for a multi-channel phase shifter according to claim 3, characterized in that, The positions of the cam (11) and the push rod (12) correspond one-to-one. The connection between the cam (11) and the push rod (12) is a force-resistant connection. The connection between the second spring (13) and the push rod (12) is a movable sleeve connection.

8. A small shift-type drive transmission device for a multi-channel phase shifter according to claim 4, characterized in that, The driving gear (15) and the driven gear (16) are connected in a meshing relationship, the driving gear (15) and the clutch gear (17) are connected in a meshing relationship, and the driving gear (15) and the drive screw (7) are connected in a meshing relationship.

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