Hydraulic motor planet carrier

Abstract

The utility model relates to the technical field of hydraulic motors, in particular to a planet carrier of a hydraulic motor. The planet carrier comprises a planet carrier body and a transmission gear arranged in the planet carrier body, a transmission shaft is arranged in the planet carrier body, a central gear is fixedly connected to the circumferential side of the transmission shaft, a plurality of planet gears are arranged between the central gear and the transmission gear, and the planet gears are meshed with the central gear and the transmission gear. A mounting ring is mounted on the circumferential inner wall of the planet carrier main body; two groups of mounting mechanisms are arranged between the mounting ring and the transmission gear; each installation mechanism comprises a connecting insertion block fixedly connected to the lower end of the transmission gear and two clamping sliding blocks, connecting grooves are formed in the upper portions of the two sides of the connecting insertion block, and elastic pieces push the clamping sliding blocks to return to original positions, so that the transmission gear and the installation ring are conveniently fixed, and the transmission gear and the installation ring are conveniently installed and disassembled; and only the transmission gear needs to be replaced, so that the replacement cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of hydraulic motors, in particular to a hydraulic motor planetary carrier. Background Art

[0002] A hydraulic motor is an actuator of a hydraulic system. It converts the liquid pressure energy provided by a hydraulic pump into mechanical energy (torque and speed) of its output shaft. Liquid is a medium for transmitting force and motion. Hydraulic motors, also known as oil motors, are mainly used in injection molding machinery, ships, hoists, engineering machinery, construction machinery, coal mining machinery, mining machinery, metallurgical machinery, shipbuilding machinery, petrochemical industry, port machinery, etc.

[0003] The gear ring on the inner ring of the hydraulic motor planetary carrier will wear out over a long period of time. When the gear ring on the inner ring of the existing hydraulic motor planetary carrier is severely worn and cannot be used, the entire planetary carrier is generally replaced, resulting in waste of the planetary carrier housing, etc., and increasing the replacement cost. Utility Model Content

[0004] In view of the deficiencies in the prior art, the purpose of the utility model is to provide a hydraulic motor planetary carrier, which can be used to install and disassemble the gear ring of the inner ring of the hydraulic motor planetary carrier. Only the gear ring needs to be replaced, thereby reducing the cost of replacement.

[0005] The above technical objectives of the utility model are achieved through the following technical solutions:

[0006] A planetary carrier of a hydraulic motor comprises a planetary carrier body and a transmission gear arranged therein, wherein a transmission shaft is arranged in the planetary carrier body, a central gear is fixedly connected to the circumferential side of the transmission shaft, a plurality of planetary gears are arranged between the central gear and the transmission gear, and the plurality of planetary gears are meshed with the central gear and the transmission gear;

[0007] A mounting ring is installed on the circumferential inner wall of the planet carrier body, and two sets of mounting mechanisms are arranged between the mounting ring and the transmission gear;

[0008] Each set of the mounting mechanisms comprises a connecting block fixedly connected to the lower end of the transmission gear and two snap-on sliding blocks, connecting grooves are provided on the upper parts of both sides of the connecting block, the snap-on sliding blocks are slidably connected in the connecting grooves, and the snap-on sliding blocks are connected to the connecting grooves via elastic members.

[0009] In a preferred example, the utility model can be further configured as follows: the elastic member includes a clamping spring, and the clamping spring is fixedly connected between the connecting groove and the clamping sliding block.

[0010] In a preferred example, the utility model can be further configured as follows: the elastic member further includes a telescopic rod, the telescopic rod is located in the clamping spring, and the telescopic rod is fixedly connected between the connecting groove and the clamping sliding block.

[0011] In a preferred example, the utility model can be further configured as follows: a plurality of mounting frames are provided on the circumferential side of the transmission shaft, and adjacent mounting frames are connected by a group of disassembly mechanisms, the disassembly mechanisms include two disassembly mechanisms, the two disassembly mechanisms are respectively fixedly connected to the circumferential sides of two adjacent mounting frames, the two disassembly mechanisms are connected by connecting bolts, and the circumferential sides of the connecting bolts are threadedly connected with nuts.

[0012] In a preferred example, the utility model can be further configured as follows: a connecting piece is provided between the mounting frame and the transmission gear, the connecting piece includes an internal threaded connecting ring fixedly connected to the lower end of the mounting frame, the circumferential inner wall of the internal threaded connecting ring is threadedly connected to a fixed connecting rod, and the lower end of the fixed connecting rod movably passes through the lower end of the transmission gear.

[0013] In a preferred example, the utility model can be further configured as follows: a fixing bolt is arranged above the planetary gear, and the fixing bolt movably passes through the lower end of the planetary gear and is threadedly connected to the mounting frame.

[0014] In a preferred example, the utility model can be further configured as follows: lubricating anti-wear cotton is arranged between the transmission shaft and the mounting ring, and a plurality of lubricating oil filling holes are opened on the circumferential side of the planetary carrier body, and the circumferential inner walls of the plurality of lubricating oil filling holes are threadedly connected with filling hole sealing caps.

[0015] In summary, the present invention includes at least one of the following beneficial technical effects:

[0016] 1. A planetary carrier body, a transmission gear, a central gear, a transmission shaft, a planetary gear, a mounting mechanism and a mounting ring are provided. The connecting plug on the transmission gear is aligned with the notch on the mounting ring, and the connecting plug is inserted into the notch. When the snap-in sliding block passes through the notch on the mounting ring, due to the force of the inner wall of the notch, the elastic member causes the snap-in sliding block to shrink into the connecting groove. When the snap-in sliding block leaves the notch of the mounting ring, the elastic member pushes the snap-in sliding block back to its original position, thereby facilitating the fixing of the transmission gear and the mounting ring, and facilitating the installation and disassembly thereof. Only the transmission gear needs to be replaced, thereby reducing the replacement cost.

[0017] 2. A mounting frame, a disassembly mechanism and a transmission shaft are provided. When installing the planetary gear, the mounting frame is first connected to the transmission shaft, and the mounting frame is moved close to the transmission shaft, and two adjacent fixing plates are moved close to each other. When the mounting frame cannot be moved further close, the connecting bolts are passed through the two fixing plates, and the nuts are threaded on the connecting bolts to achieve the connection of the two fixing plates. After the adjacent mounting frames are connected through the disassembly mechanism, the mounting frame can be sleeved on the surface of the transmission shaft. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a stereogram of this embodiment;

[0019] Figure 2 This is a partial view of the mounting frame of this embodiment;

[0020] Figure 3 This embodiment Figure 2 A partial enlarged view of the middle A;

[0021] Figure 4 It is an exploded view of the installation mechanism of this embodiment.

[0022] In the figure, 1. planetary carrier body; 2. transmission gear; 3. planetary gear; 4. lubricating oil filling hole; 5. filling hole sealing cap; 6. transmission shaft; 7. center gear; 8. mounting frame; 9. disassembly mechanism; 901. fixing plate; 902. connecting bolt; 903. nut; 11. internal thread connecting ring; 12. fixed connecting rod; 13. mounting mechanism; 1301. connecting plug; 1302. connecting groove; 1303. snap-in spring; 1304. snap-in sliding block; 1305. telescopic rod; 14. lubricating anti-wear cotton; 15. mounting ring; 16. fixing bolt. DETAILED DESCRIPTION

[0023] The utility model is further described in detail below in conjunction with the accompanying drawings.

[0024] Example:

[0025] Reference Figure 1-4 The utility model discloses a hydraulic motor planetary carrier, comprising a planetary carrier body 1 and a transmission gear 2 arranged therein, a transmission shaft 6 is arranged in the planetary carrier body 1, a central gear 7 is fixedly connected to the circumferential side of the transmission shaft 6, a plurality of planetary gears 3 are arranged between the central gear 7 and the transmission gear 2, and the plurality of planetary gears 3 are all meshed with the central gear 7 and the transmission gear 2;

[0026] A mounting ring 15 is installed on the circumferential inner wall of the planet carrier body 1, and two sets of mounting mechanisms 13 are arranged between the mounting ring 15 and the transmission gear 2;

[0027] Each set of mounting mechanisms 13 includes a connecting block 1301 fixedly connected to the lower end of the transmission gear 2 and two snap-on sliding blocks 1304. Connecting grooves 1302 are provided on the upper parts of both sides of the connecting block 1301. The snap-on sliding blocks 1304 are slidably connected in the connecting grooves 1302. The snap-on sliding blocks 1304 are connected to the connecting grooves 1302 through elastic members.

[0028] In this embodiment, the two snap-fitting sliding blocks 1304 slide in the two connecting grooves 1302 respectively, and the elastic member is also provided in two groups. The connecting plug block 1301 on the transmission gear 2 is aligned with the notch on the mounting ring 15, and the connecting plug block 1301 is inserted into the notch. When the snap-fitting sliding block 1304 passes through the notch on the mounting ring 15, due to the force of the inner wall of the notch, the elastic member causes the snap-fitting sliding block 1304 to shrink into the connecting groove 1302. When the snap-fitting sliding block 1304 leaves the notch of the mounting ring 15, the elastic member pushes the snap-fitting sliding block 1304 back to its original position, thereby facilitating the fixing of the transmission gear 2 and the mounting ring 15, and facilitating its installation and disassembly. Only the transmission gear 2 needs to be replaced, thereby reducing the replacement cost. Preferably, the transmission gear 2 is connected to the hydraulic motor body.

[0029] For further details, please refer to Figure 4 The elastic member includes a clamping spring 1303 , and the clamping spring 1303 is fixedly connected between the connecting groove 1302 and the clamping sliding block 1304 .

[0030] In this embodiment, when the snap-in sliding block 1304 is squeezed by the notch of the mounting ring 15, the snap-in spring 1303 is in a compressed state, and the snap-in sliding block 1304 shrinks into the connecting groove 1302. When the snap-in sliding block 1304 leaves the groove, the snap-in spring 1303 pushes the snap-in sliding block 1304 back to its original position due to its own elastic recovery, and the connecting plug 1301 is clamped with the mounting ring 15, thereby realizing the connection between the transmission gear 2 and the mounting ring 15.

[0031] For further details, please refer to Figure 4 The elastic member further includes a telescopic rod 1305 , which is located in the clamping spring 1303 , and the telescopic rod 1305 is fixedly connected between the connecting groove 1302 and the clamping sliding block 1304 .

[0032] In this embodiment, the telescopic rod 1305 can prevent the clamping spring 1303 from being compressed or bending and deforming during its own elastic recovery, thereby improving the movement stability of the clamping sliding block 1304 and allowing the clamping sliding block 1304 to move in a straight line.

[0033] For further details, please refer to Figure 3A plurality of mounting frames 8 are provided on the circumferential side of the transmission shaft 6, and adjacent mounting frames 8 are connected by a group of disassembly mechanisms 9. The disassembly mechanisms 9 include two disassembly mechanisms 9, and the two disassembly mechanisms 9 are respectively fixedly connected to the circumferential sides of two adjacent mounting frames 8. The two disassembly mechanisms 9 are connected by a connecting bolt 902, and a nut 903 is threadedly connected to the circumferential side of the connecting bolt 902.

[0034] In this embodiment, when installing the planetary gear 3, first connect the mounting frame 8 to the transmission shaft 6, move the mounting frame 8 close to the transmission shaft 6, and move two adjacent fixing plates 901 close to each other. When the mounting frame 8 cannot move any closer, pass the connecting bolt 902 through the two fixing plates 901, and thread the nut 903 on the connecting bolt 902 to achieve the connection of the two fixing plates 901. After the adjacent mounting frames 8 are connected through the disassembly mechanism 9, the mounting frame 8 can be sleeved on the surface of the transmission shaft 6.

[0035] For further details, please refer to Figure 3 A connecting piece is provided between the mounting frame 8 and the transmission gear 2, and the connecting piece includes an internal threaded connecting ring 11 fixedly connected to the lower end of the mounting frame 8, and a fixed connecting rod 12 is threadedly connected to the circumferential inner wall of the internal threaded connecting ring 11, and the lower end of the fixed connecting rod 12 movably passes through the lower end of the transmission gear 2.

[0036] In this embodiment, a limit block is fixed at the lower end of the fixed connecting rod 12, and a thread groove is opened on the upper circumferential side. The internal thread connecting ring 11 cooperates with the thread groove on the fixed connecting rod 12 to fix the transmission gear 2 and the mounting frame 8.

[0037] For further details, please refer to Figure 3 A fixing bolt 16 is arranged above the planetary gear 3 , and the fixing bolt 16 movably passes through the lower end of the planetary gear 3 and is threadedly connected to the mounting frame 8 .

[0038] In this embodiment, the fixing bolt 16 passes through the planetary gear 3 and is threadedly inserted into the mounting bracket 8 . The planetary gear 3 can continue to rotate on the circumferential side of the fixing bolt 16 , which facilitates the installation and removal of the planetary gear 3 .

[0039] For further details, please refer to Figure 2 and Figure 1 A lubricating anti-wear cotton 14 is arranged between the transmission shaft 6 and the mounting ring 15, and a plurality of lubricating oil filling holes 4 are opened on the circumferential side of the planetary carrier body 1, and the circumferential inner walls of the plurality of lubricating oil filling holes 4 are threadedly connected with filling hole sealing caps 5.

[0040] In this embodiment, the preferred connecting plug 1301 passes through the lubricating and anti-wear cotton 14 when passing through the mounting ring 15. Rotating the mounting ring 15 can open the slot outside the lubricating oil filling hole 4. The slot inside the lubricating oil filling hole 4 fits with the lubricating and anti-wear cotton 14. Lubricating oil is added to the lubricating oil filling hole 4, and the lubricating oil enters the lubricating and anti-wear cotton 14. The transmission gear 2 is lubricated by the absorption and diffusion of the lubricating and anti-wear cotton 14.

[0041] The implementation principle of the above embodiment is: when installing the transmission gear 2, align the connecting block 1301 on the transmission gear 2 with the notch on the mounting ring 15, and insert the connecting block 1301 into the notch. When the snap-in sliding block 1304 passes through the notch on the mounting ring 15, due to the force of the inner wall of the notch, the elastic member causes the snap-in sliding block 1304 to shrink into the connecting groove 1302. When the snap-in sliding block 1304 leaves the notch of the mounting ring 15, the elastic member pushes the snap-in sliding block 1304 back to its original position, thereby facilitating the fixation of the transmission gear 2 and the mounting ring 15, and facilitating its installation and disassembly. Only the transmission gear 2 needs to be replaced, thereby reducing the replacement cost.

[0042] The contents not described in detail in this specification belong to the prior art known to professional and technical personnel in this field.

[0043] The embodiments of this specific implementation method are all preferred embodiments of the utility model, and are not intended to limit the protection scope of the utility model. Therefore, all equivalent changes made based on the structure, shape, and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A planetary carrier for a hydraulic motor, comprising a planetary carrier body (1) and a transmission gear (2) arranged therein, characterized in that: A transmission shaft (6) is arranged in the planet carrier body (1), a central gear (7) is fixedly connected to the circumferential side of the transmission shaft (6), a plurality of planetary gears (3) are arranged between the central gear (7) and the transmission gear (2), and the plurality of planetary gears (3) are meshed with the central gear (7) and the transmission gear (2); A mounting ring (15) is installed on the circumferential inner wall of the planet carrier body (1), and two sets of mounting mechanisms (13) are arranged between the mounting ring (15) and the transmission gear (2); Each group of the mounting mechanisms (13) comprises a connecting plug (1301) fixedly connected to the lower end of the transmission gear (2) and two snap-on sliding blocks (1304), both upper parts of the connecting plug (1301) are provided with connecting grooves (1302), the snap-on sliding blocks (1304) are slidably connected in the connecting grooves (1302), and the snap-on sliding blocks (1304) are connected to the connecting grooves (1302) via elastic members.

2. A planetary carrier for a hydraulic motor according to claim 1, characterized in that: The elastic member comprises a clamping spring (1303), and the clamping spring (1303) is fixedly connected between the connecting groove (1302) and the clamping sliding block (1304).

3. A planetary carrier for a hydraulic motor according to claim 2, characterized in that: The elastic member further comprises a telescopic rod (1305), wherein the telescopic rod (1305) is located in the clamping spring (1303), and the telescopic rod (1305) is fixedly connected between the connecting groove (1302) and the clamping sliding block (1304).

4. The planetary carrier of a hydraulic motor according to claim 1, characterized in that: A plurality of mounting frames (8) are arranged on the circumferential side of the transmission shaft (6), and adjacent mounting frames (8) are connected via a group of disassembly mechanisms (9), wherein the disassembly mechanisms (9) include two disassembly mechanisms (9), the two disassembly mechanisms (9) are respectively fixedly connected to the circumferential sides of two adjacent mounting frames (8), the two disassembly mechanisms (9) are connected via a connecting bolt (902), and a nut (903) is threadedly connected to the circumferential side of the connecting bolt (902).

5. The planetary carrier of a hydraulic motor according to claim 4, characterized in that: A connecting piece is provided between the mounting frame (8) and the transmission gear (2), the connecting piece comprising an internal threaded connecting ring (11) fixedly connected to the lower end of the mounting frame (8), a fixed connecting rod (12) being threadedly connected to the circumferential inner wall of the internal threaded connecting ring (11), and the lower end of the fixed connecting rod (12) movably penetrates the lower end of the transmission gear (2).

6. The planetary carrier of a hydraulic motor according to claim 4, characterized in that: A fixing bolt (16) is arranged above the planetary gear (3), and the fixing bolt (16) movably penetrates the lower end of the planetary gear (3) and is threadedly connected to the mounting frame (8).

7. The planetary carrier of a hydraulic motor according to claim 1, characterized in that: Lubricating anti-wear cotton (14) is arranged between the transmission shaft (6) and the mounting ring (15), and a plurality of lubricating oil filling holes (4) are opened on the circumferential side of the planetary carrier body (1), and the circumferential inner walls of the plurality of lubricating oil filling holes (4) are threadedly connected with filling hole sealing caps (5).

Images