Hydraulic motor driving shaft

Abstract

The utility model relates to the technical field of hydraulic motor driving shafts, and discloses a hydraulic motor driving shaft which comprises a hollow shaft body, a separation barrel is fixedly connected to the surface of the hollow shaft body, a first fixing barrel is arranged on the right side of the separation barrel in an attached mode, and a front gear is fixedly connected to the surface of the first fixing barrel. A second fixing cylinder is attached to the left side of the separation cylinder, a tail gear is fixedly connected to the surface of the second fixing cylinder, and a first arc-shaped block is fixedly connected to the surface of the hollow shaft body. According to the driving shaft, the hollow shaft body, the separation cylinder, the first fixing cylinder, the second fixing cylinder, the first arc-shaped block, the second arc-shaped block, the locking groove, the strip-shaped hole and the locking support are matched, so that the hollow shaft body, the front gear and the tail gear are convenient to disassemble and assemble, and when the front gear or the tail gear on the driving shaft is damaged, the driving shaft is convenient to disassemble and assemble; a user only needs to replace the damaged front gear or the damaged tail gear, and then the driving shaft can continue to be used.

Description

Technical Field

[0001] The utility model relates to the technical field of hydraulic motor drive shafts, in particular to a hydraulic motor drive shaft. Background Art

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

[0003] At present, the hydraulic motor drive shaft on the market is mainly composed of a front gear, a shaft body and a tail gear, wherein the tail gear is connected to the internal drive component of the motor, and the front gear is connected to the external drive component of the motor. For example, a hydraulic motor drive shaft disclosed in Chinese Patent Publication No. CN220523239U, however, since the front gear, the shaft body and the tail gear cannot be separated after being fixed, when the front gear or the tail gear is damaged, the entire drive shaft needs to be replaced, resulting in a high maintenance cost for the hydraulic motor. Utility Model Content

[0004] The purpose of the utility model is to solve the shortcomings existing in the prior art, such as: at present, the hydraulic motor drive shaft on the market is mainly composed of a front gear, a shaft body and a tail gear, wherein the tail gear is connected to the internal drive component of the motor, and the front gear is connected to the external drive component of the motor, but because the front gear, the shaft body and the tail gear cannot be separated after being fixed, when the front gear or the tail gear is damaged, the entire drive shaft needs to be replaced, which leads to a high maintenance cost of the hydraulic motor, and a hydraulic motor drive shaft is proposed.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A hydraulic motor drive shaft comprises a hollow shaft body, a separation cylinder is fixedly connected to the surface of the hollow shaft body, a first fixed cylinder is fitted on the right side of the separation cylinder, a front gear is fixedly connected to the surface of the first fixed cylinder, a second fixed cylinder is fitted on the left side of the separation cylinder, and a tail gear is fixedly connected to the surface of the second fixed cylinder, a first arc block is fixedly connected to the surface of the hollow shaft body, the inner wall of the first fixed cylinder and the inner wall of the second fixed cylinder are both in contact with the surface of the first arc block, the first arc block is fitted with a side close to the separation cylinder and the surface of the hollow shaft body, the inner wall of the first fixed cylinder and the inner wall of the second fixed cylinder are both fixedly connected to the surface of the second arc block, a locking groove is provided on the side of the second arc block close to the separation cylinder, a strip hole is provided inside the hollow shaft body, and locking brackets are fixedly connected to both left and right ends of the hollow shaft body, and the inner wall of the locking groove and the inner wall of the strip hole are both in contact with the surface of the locking bracket.

[0007] Preferably, the locking bracket includes a connecting block, the left and right sides of the connecting block are fixedly connected with bolts, the surface of the bolts is fixedly connected with bearings, the surface of the bearing and the left and right ends of the hollow shaft body are fixedly connected with hollow plates, the surface of the bolts is threadedly connected with a threaded barrel, the surface of the threaded barrel is fixedly connected with a locking block, and the inner wall of the locking groove and the inner wall of the strip hole are in contact with the surface of the locking block.

[0008] Preferably, the axis of the threaded barrel coincides with the axis of the hollow shaft body, and the gap between the surface of the threaded barrel and the inner wall of the hollow shaft body is 3 mm.

[0009] Preferably, the upper surface of the hollow shaft body and the upper surface of the separating cylinder are both provided with through holes, the inner wall of the through hole is fitted with a positioning column, the surface of the positioning column is fitted with a rubber sleeve, the surface of the rubber sleeve is bonded with a connecting ring, the surface of the connecting ring and the upper surface of the connecting block are fixedly connected with the connecting column, and the bottom of the positioning column and the upper surface of the connecting block are fixedly connected with a spring.

[0010] Preferably, a disassembly tool is provided on the inner wall of the through hole and the upper surface of the positioning column.

[0011] Preferably, the disassembly tool includes an arc-shaped magnetic plate, a pressing column is fixedly connected to the bottom of the arc-shaped magnetic plate, the inner wall of the through hole and the upper surface of the positioning column are in contact with the surface of the pressing column, and a U-shaped column is fixedly connected to the upper surface of the arc-shaped magnetic plate.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] (1) The utility model is provided with a hollow shaft body, a separation cylinder, a first fixed cylinder, a second fixed cylinder, a first arc block, a second arc block, a locking groove, a strip hole and a locking bracket, wherein when the locking block on the locking bracket is inserted into the locking groove, the second arc block is fixed together with the first arc block through the cooperation between the locking block and the locking groove, and the front gear and the rear gear are fixed on the hollow shaft body through the cooperation between the first arc block and the second arc block. When the locking block is separated from the locking groove, the first arc block and the second arc block can be staggered by rotating the front gear or the rear gear. The front gear and the tail gear can be directly separated from the hollow shaft body. At the same time, by rotating the bolt on the locking bracket, the locking block can be contacted or separated from the locking groove, and then through the cooperation of the hollow shaft body, the separating cylinder, the first fixed cylinder, the second fixed cylinder, the first arc block, the second arc block, the locking groove, the strip hole and the locking bracket, the disassembly and assembly between the hollow shaft body, the front gear and the tail gear is more convenient. Therefore, when the front gear or the tail gear on the drive shaft is damaged, the user only needs to replace the damaged front gear or the tail gear, and the drive shaft can continue to be used.

[0014] (2) The utility model cooperates with the through hole, the positioning column, the rubber sleeve, the connecting ring, the connecting column and the spring so that the locking block can automatically lock the bolt after being inserted into the locking groove, thereby preventing the bolt from rotating after being vibrated and preventing the locking block from being displaced due to the vibration. At the same time, through the friction between the rubber sleeve and the positioning column, the swing amplitude of the positioning column is small when the drive shaft vibrates, thereby preventing the positioning column and the through hole from being separated due to the vibration. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the structure of the utility model;

[0016] Figure 2 for Figure 1 Enlarged view of point A in the middle;

[0017] Figure 3 for Figure 1 Enlarged view of point B in the middle;

[0018] Figure 4 It is a side view of the hollow central shaft body of the utility model;

[0019] Figure 5 It is a top view of the hollow central shaft body of the utility model;

[0020] Figure 6 It is a left side view of the first fixed cylinder in the utility model;

[0021] Figure 7 It is a front view of the locking bracket in the utility model;

[0022] Figure 8 It is a side view of the disassembly tool in the utility model.

[0023] In the figure: 1. hollow shaft body; 2. separation cylinder; 3. first fixed cylinder; 4. front gear; 5. second fixed cylinder; 6. tail gear; 7. first arc block; 8. second arc block; 9. locking groove; 10. strip hole; 11. locking bracket; 111. connecting block; 112. bolt; 113. bearing; 114. hollow plate; 115. threaded cylinder; 116. locking block; 12. through hole; 13. positioning column; 14. rubber sleeve; 15. connecting ring; 16. connecting column; 17. spring; 18. disassembly tool; 181. arc magnetic plate; 182. pressing column; 183. U-shaped column. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0025] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0026] Embodiment 1:

[0027] Reference Figure 1-7A hydraulic motor drive shaft comprises a hollow shaft body 1, a separation cylinder 2 is fixedly connected to the surface of the hollow shaft body 1, a first fixed cylinder 3 is fitted on the right side of the separation cylinder 2, a front gear 4 is fixedly connected to the surface of the first fixed cylinder 3, a second fixed cylinder 5 is fitted on the left side of the separation cylinder 2, a tail gear 6 is fixedly connected to the surface of the second fixed cylinder 5, a first arc block 7 is fixedly connected to the surface of the hollow shaft body 1, the inner wall of the first fixed cylinder 3 and the inner wall of the second fixed cylinder 5 are both in contact with the surface of the first arc block 7, a second arc block 8 is fitted on the side of the first arc block 7 close to the separation cylinder 2 and the surface of the hollow shaft body 1, and the inner wall of the first fixed cylinder 3 and the second fixed cylinder 5 are both in contact with the surface of the first arc block 7. The inner wall of the fixed cylinder 5 is fixedly connected to the surface of the second arc block 8. When the first arc block 7 contacts the second arc block 8, the first arc block 7 and the second arc block 8 cooperate to make the first fixed cylinder 3 and the second fixed cylinder 5 unable to be separated from the separating cylinder 2. When the first arc block 7 and the second arc block 8 are offset, the first fixed cylinder 3 and the second fixed cylinder 5 can be directly separated from the separating cylinder 2. A locking groove 9 is provided on the side of the second arc block 8 close to the separating cylinder 2, and a strip hole 10 is provided inside the hollow shaft body 1. Locking brackets 11 are fixedly connected to the left and right ends of the hollow shaft body 1, and the inner walls of the locking groove 9 and the inner walls of the strip hole 10 are in contact with the surface of the locking bracket 11.

[0028] The locking bracket 11 includes a connecting block 111, and bolts 112 are fixedly connected to the left and right sides of the connecting block 111. The two bolts 112 on the left and right sides are connected together through the connecting block 111. The surface of the bolt 112 is fixedly connected to a bearing 113. The surface of the bearing 113 and the left and right ends of the hollow shaft body 1 are fixedly connected to a hollow plate 114. The surface of the bolt 112 is threadedly connected to a threaded barrel 115. The axis of the threaded barrel 115 coincides with the axis of the hollow shaft body 1. The gap between the surface of the threaded barrel 115 and the inner wall of the hollow shaft body 1 is 3mm. The surface of the threaded barrel 115 is fixedly connected to the locking block 1 16. The inner wall of the locking groove 9 and the inner wall of the strip hole 10 are in contact with the surface of the locking block 116. Through the cooperation of the locking block 116 and the strip hole 10, the threaded tube 115 can only move horizontally in the hollow shaft body 1. When the bolt 112 rotates, the locking block 116 can move horizontally through the cooperation of the bolt 112 and the threaded tube 115. When the locking block 116 contacts the locking groove 9, the second arc block 8 cannot rotate on the hollow shaft body 1 through the cooperation of the locking block 116 and the locking groove 9. When the locking block 116 is separated from the locking groove 9, the second arc block 8 can rotate on the hollow shaft body 1.

[0029] Embodiment 2:

[0030] Reference Figure 1-8The upper surface of the hollow shaft body 1 and the upper surface of the partition cylinder 2 are both provided with a through hole 12, and the inner wall of the through hole 12 is fitted with a positioning column 13, and the surface of the positioning column 13 is fitted with a rubber sleeve 14, and the surface of the rubber sleeve 14 is bonded with a connecting ring 15, and the surface of the connecting ring 15 and the upper surface of the connecting block 111 are fixedly connected with a connecting column 16, and the bottom of the positioning column 13 and the upper surface of the connecting block 111 are fixedly connected with a spring 17. When the positioning column 13 is aligned with the through hole 12, the elastic force of the spring 17 can make the positioning column 13 inserted into the through hole 12, and through the positioning column 13 and the through hole 1 2, so that the connecting block 111 cannot rotate, and then when the locking block 116 is inserted into the locking groove 9, the bolt 112 can be automatically locked through the cooperation of the through hole 12, the positioning column 13, the rubber sleeve 14, the connecting ring 15, the connecting column 16 and the spring 17, so that the bolt 112 will not rotate after being vibrated, and the locking block 116 will not be displaced due to the vibration. At the same time, through the friction between the rubber sleeve 14 and the positioning column 13, the swing amplitude of the positioning column 13 is small when the drive shaft vibrates, so that the positioning column 13 and the through hole 12 will not be separated due to vibration.

[0031] The inner wall of the through hole 12 and the upper surface of the positioning column 13 are both fitted with a disassembly tool 18 .

[0032] The disassembly tool 18 includes an arc-shaped magnetic plate 181, and a pressing column 182 is fixedly connected to the bottom of the arc-shaped magnetic plate 181. The inner wall of the through hole 12 and the upper surface of the positioning column 13 are both in contact with the surface of the pressing column 182. The upper surface of the arc-shaped magnetic plate 181 is fixedly connected to a U-shaped column 183. When the pressing column 182 is inserted into the through hole 12 and the arc-shaped magnetic plate 181 is in contact with the separation cylinder 2 by pressing the U-shaped column 183, the pressing column 182 can be fixed in the through hole 12 through the suction force of the arc-shaped magnetic plate 181 on the separation cylinder 2, and the positioning column 13 cannot enter the through hole 12 through the pressing column 182, thereby making it more convenient for the user to turn the bolt 112 through the disassembly tool 18.

[0033] In the present invention, when replacing the front gear 4 and the tail gear 6, the user first inserts the pressing column 182 into the through hole 12, and then presses the U-shaped column 183 to make the arc-shaped magnetic plate 181 contact the separation tube 2. At this time, the pressing column 182 is fixed in the through hole 12 by the suction force of the arc-shaped magnetic steel on the separation tube 2, and the positioning column 13 cannot enter the through hole 12 through the pressing column 182. Then, the bolt 112 is turned, and the distance between the locking block 116 and the separation tube 2 is reduced through the cooperation of the bolt 112 and the threaded tube 115. When the locking block 116 is separated from the locking groove 9, the first arc block 7 and the second arc block 8 can be staggered by rotating the front gear 4 or the tail gear 6, and the front gear 4 and the tail gear 6 can be directly separated from the hollow shaft body 1. After the damaged front gear 4 and the tail gear 6 are removed from the hollow shaft body 1 , put the new front gear 4 and tail gear 6 on the hollow shaft body 1, and by rotating the front gear 4 and the tail gear 6, the second arc block 8 is located between the first arc block 7 and the partition cylinder 2, then, rotate the bolt 112, and through the cooperation of the bolt 112 and the threaded cylinder 115, the locking block 116 is inserted into the locking groove 9, at this time, through the cooperation of the locking block 116 and the locking groove 9, the second arc block 8 cannot be rotated on the hollow shaft body 1, and through the cooperation of the first arc block 7 and the second arc block 8, the front gear 4 and the tail gear 6 are fixed on the hollow shaft body 1, when the drive shaft is assembled, by pulling the U-shaped column 183, the pressing column 182 is pulled out of the through hole 12, and the positioning column 13 is inserted into the through hole 12 by the elastic force of the spring 17, at this time, the bolt 112 can be locked by the cooperation of the positioning column 13 and the through hole 12.

[0034] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

[0035] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

Claims

1. A hydraulic motor drive shaft, comprising a hollow shaft body (1), characterized in that: The surface of the hollow shaft body (1) is fixedly connected to a separation cylinder (2), the right side of the separation cylinder (2) is fitted with a first fixed cylinder (3), the surface of the first fixed cylinder (3) is fixedly connected to a front gear (4), the left side of the separation cylinder (2) is fitted with a second fixed cylinder (5), the surface of the second fixed cylinder (5) is fixedly connected to a rear gear (6), the surface of the hollow shaft body (1) is fixedly connected to a first arc block (7), the inner wall of the first fixed cylinder (3) and the inner wall of the second fixed cylinder (5) are both in contact with the surface of the first arc block (7), and the first arc block (7) is fixedly connected to the rear gear (6). ) A second arc block (8) is fitted on one side of the hollow shaft body (1) close to the separation tube (2), and the inner wall of the first fixed tube (3) and the inner wall of the second fixed tube (5) are fixedly connected to the surface of the second arc block (8). A locking groove (9) is provided on the side of the second arc block (8) close to the separation tube (2). A strip hole (10) is provided inside the hollow shaft body (1). Locking brackets (11) are fixedly connected to the left and right ends of the hollow shaft body (1), and the inner walls of the locking groove (9) and the inner walls of the strip hole (10) are in contact with the surface of the locking bracket (11).

2. A hydraulic motor drive shaft according to claim 1, characterized in that: The locking bracket (11) comprises a connecting block (111), the left and right sides of the connecting block (111) are fixedly connected with bolts (112), the surface of the bolt (112) is fixedly connected with a bearing (113), the surface of the bearing (113) and the left and right ends of the hollow shaft body (1) are fixedly connected with a hollow plate (114), the surface of the bolt (112) is threadedly connected with a threaded barrel (115), the surface of the threaded barrel (115) is fixedly connected with a locking block (116), and the inner wall of the locking groove (9) and the inner wall of the strip hole (10) are in contact with the surface of the locking block (116).

3. A hydraulic motor drive shaft according to claim 2, characterized in that: The axis of the threaded barrel (115) coincides with the axis of the hollow shaft body (1), and the gap between the surface of the threaded barrel (115) and the inner wall of the hollow shaft body (1) is 3 mm.

4. A hydraulic motor drive shaft according to claim 2, characterized in that: The upper surface of the hollow shaft body (1) and the upper surface of the partition cylinder (2) are both provided with a through hole (12); a positioning column (13) is fitted on the inner wall of the through hole (12); a rubber sleeve (14) is fitted on the surface of the positioning column (13); a connecting ring (15) is bonded to the surface of the rubber sleeve (14); a connecting column (16) is fixedly connected to the surface of the connecting ring (15) and the upper surface of the connecting block (111); a spring (17) is fixedly connected to the bottom of the positioning column (13) and the upper surface of the connecting block (111).

5. A hydraulic motor drive shaft according to claim 4, characterized in that: The inner wall of the through hole (12) and the upper surface of the positioning column (13) are both fitted with a disassembly tool (18).

6. A hydraulic motor drive shaft according to claim 5, characterized in that: The disassembly tool (18) comprises an arc-shaped magnetic plate (181), the bottom of the arc-shaped magnetic plate (181) is fixedly connected to a pressing column (182), the inner wall of the through hole (12) and the upper surface of the positioning column (13) are in contact with the surface of the pressing column (182), and the upper surface of the arc-shaped magnetic plate (181) is fixedly connected to a U-shaped column (183).

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