Novel dynamic balance clamp for transmission shaft assembly

Abstract

The utility model discloses a novel dynamic balance clamp for a transmission shaft assembly, and belongs to the technical field of clamps. A novel dynamic balance clamp for a transmission shaft assembly comprises a bottom plate, a supporting strip is fixed to the top of the bottom plate, a mounting seat is slidably arranged at the top of the supporting strip, a mounting shell is rotatably arranged on the side face of the mounting seat through a bearing, a rectangular block is embedded in the mounting shell, and a flange plate is fixed to the side face of the rectangular block. A transmission shaft body is installed on the side face of the flange plate through screws, and an installation mechanism used for rapidly disassembling and assembling the flange plate is arranged on the installation shell. The mounting seats can slide on the outer surfaces of the supporting strips, so that the positions of the two mounting seats can be adjusted, the position of the mounting mechanism is changed along with the mounting seats, and transmission shaft bodies with different lengths can be fixed; and the mounting seat can be fixed more conveniently and quickly.

Description

Technical Field

[0001] The utility model relates to the technical field of clamps, in particular to a novel dynamic balancing clamp for a transmission shaft assembly. Background Art

[0002] The drive shaft is a high-speed, low-support rotating body commonly used in automobiles. In order to ensure that the drive shaft remains balanced during operation, reduce vibration and noise, and improve overall operating stability and comfort, the drive shaft needs to be fixed with a fixture during production and the drive shaft needs to be dynamically balanced.

[0003] For example, in the Chinese patent application number 202021367300.0, a dynamic balancing fixture for an automobile drive shaft assembly is provided. By rotating the rotating disk, the screw, support plate, guide rod and support frame are driven to move longitudinally in turn, driving the guide rod to rise and fall, making it convenient for the connecting disk and the driven disk to dock with the flanges on both sides of the drive shaft, greatly reducing manpower labor. The design of the guide rod can prevent the rotation of the screw from driving the support plate to rotate, driving the drive shaft to rotate, and affecting the later docking and installation.

[0004] However, when this type of clamp is used, the position of the flange is fixed and the distance between the support seats is inconvenient to adjust. This results in that it can only fix drive shafts of the same length and is not suitable for drive shafts of different sizes.

[0005] Therefore, in order to solve this problem, the present invention provides a novel dynamic balancing fixture for a transmission shaft assembly. Utility Model Content

[0006] The purpose of the utility model is to solve the problem in the prior art that the position of the flange is fixed and the distance of the support seat is inconvenient to adjust, which results in that only drive shafts of the same length can be fixed and it is not suitable for drive shafts of different sizes. A new type of dynamic balancing fixture for the drive shaft assembly is proposed.

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

[0008] A new type of dynamic balancing fixture for a transmission shaft assembly includes a base plate, a support bar is fixed on the top of the base plate, a mounting seat is slid on the top of the support bar, a mounting shell is rotated on the side of the mounting seat through a bearing, a rectangular block is embedded and installed in the mounting shell, a flange is fixed on the side of the rectangular block, a transmission shaft body is mounted on the side of the flange by screws, a mounting mechanism for quickly disassembling and assembling the flange is provided on the mounting shell, and a limiting mechanism for fixing the mounting seat is provided on the base plate.

[0009] Preferably, the mounting mechanism includes a mounting block fixed to the top of the mounting shell, a fixed block is fixed on the top of the mounting shell, a cross bar is fixed between the fixed block and the two mounting blocks, a moving block is slidably provided on the outer surface of the cross bar, a U-shaped rod is fixed on the side of the moving block close to the mounting block, the U-shaped rod is slidably connected to the mounting block and the mounting shell, a locking hole is provided on the rectangular block, and the U-shaped rod is slidably connected to the locking hole.

[0010] Preferably, the mounting mechanism further comprises a spring 1 sleeved on the outer surface of the U-shaped rod, and the two ends of the spring 1 are respectively connected to the mounting block and the moving block.

[0011] Preferably, the mounting mechanism further comprises air cushions fixed on both sides of the fixing block, an air bag is fixed on the inner wall of the mounting shell, and a hose is connected between the air cushion and the air bag.

[0012] Preferably, the limiting mechanism includes a pull rod sliding on the mounting seat, a connecting block is fixed to the top end of the pull rod, a lifting block is fixed to the bottom end of the pull rod, a spring 2 is sleeved on the outer surface of the pull rod, and the two ends of the spring 2 are respectively fixedly connected to the lifting block and the mounting seat.

[0013] Preferably, the limiting mechanism further comprises an insertion rod fixed to the bottom of the lifting block, a fixing hole is provided on the bottom plate, and the insertion rod is slidably connected to the fixing hole.

[0014] Compared with the prior art, the present invention provides a new type of dynamic balancing fixture for a transmission shaft assembly, which has the following beneficial effects:

[0015] This new drive shaft assembly dynamic balancing fixture can slide on the outer surface of the support bar through the mounting seat, so that the position of the two mounting seats can be adjusted, and the position of the mounting mechanism can be changed accordingly, so that drive shaft bodies of different lengths can be fixed. Through the setting of the limiting mechanism, after the position of the mounting seat is adjusted, the mounting seat can be fixed more conveniently and quickly to prevent the mounting seat from shifting during the test. Through the setting of the mounting mechanism, the drive shaft body is locked by spring clamping. Compared with the traditional technology of locking by flange, it is more convenient when fixing or removing the drive shaft body. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the overall structure of a new type of dynamic balancing fixture for a transmission shaft assembly proposed by the present invention;

[0017] Figure 2 This is a front view schematic diagram of the overall structure of a new type of dynamic balancing fixture for a transmission shaft assembly proposed by the present utility model;

[0018] Figure 3A new type of dynamic balancing fixture for transmission shaft assembly proposed in this utility model Figure 2 A schematic diagram of the structure at center A;

[0019] Figure 4 This is a schematic diagram of the separation of the mounting shell and rectangular block structure of a new type of dynamic balancing fixture for a transmission shaft assembly proposed in the present invention;

[0020] Figure 5 A new type of dynamic balancing fixture for transmission shaft assembly proposed in this utility model Figure 4 A magnified schematic diagram of the structure at point B in the middle.

[0021] In the figure: 1. Base plate; 2. Support bar; 3. Mounting seat; 4. Mounting shell; 5. Rectangular block; 6. Flange; 7. Drive shaft body; 8. Mounting mechanism; 80. Fixed block; 81. Mounting block; 82. Cross bar; 83. Moving block; 84. U-shaped rod; 85. Locking hole; 86. Spring 1; 87. Air cushion; 88. Airbag; 89. Hose; 9. Limiting mechanism; 91. Pull rod; 92. Connecting block; 93. Lifting block; 94. Spring 2; 95. Insert rod; 96. Fixing hole. DETAILED DESCRIPTION

[0022] 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 the embodiments.

[0023] 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. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present invention.

[0024] Example 1

[0025] Reference Figure 1-Figure 5 A new type of dynamic balancing fixture for a transmission shaft assembly includes a base plate 1, a support bar 2 is fixed on the top of the base plate 1, a mounting seat 3 is slid on the top of the support bar 2, a mounting shell 4 is rotated on the side of the mounting seat 3 through a bearing, a rectangular block 5 is embedded and installed in the mounting shell 4, a flange 6 is fixed on the side of the rectangular block 5, and a transmission shaft body 7 is installed on the side of the flange 6 by screws, a mounting mechanism 8 for quickly disassembling and assembling the flange 6 is provided on the mounting shell 4, and a limiting mechanism 9 for fixing the mounting seat 3 is provided on the base plate 1.

[0026] Reference Figure 1-Figure 5The mounting mechanism 8 includes a mounting block 81 fixed to the top of the mounting shell 4, a fixed block 80 is fixed to the top of the mounting shell 4, a cross bar 82 is fixed between the fixed block 80 and the two mounting blocks 81, a moving block 83 is slidably provided on the outer surface of the cross bar 82, a U-shaped rod 84 is fixed to the side of the moving block 83 close to the mounting block 81, the U-shaped rod 84 is slidably connected to the mounting block 81 and the mounting shell 4, a locking hole 85 is opened on the rectangular block 5, and the U-shaped rod 84 is slidably connected to the locking hole 85.

[0027] Reference Figure 1-Figure 5 The mounting mechanism 8 further includes a spring 86 sleeved on the outer surface of the U-shaped rod 84, and the two ends of the spring 86 are respectively connected to the mounting block 81 and the moving block 83.

[0028] Reference Figure 1-Figure 5 The mounting mechanism 8 further includes air cushions 87 fixed on both sides of the fixing block 80 , an air bag 88 is fixed on the inner wall of the mounting shell 4 , and a hose 89 is connected between the air cushion 87 and the air bag 88 .

[0029] The U-shaped rod 84 is moved to both sides, so that the U-shaped rod 84 slides out from the inner wall of the mounting shell 4 and squeezes the spring 1 86. At this time, the moving block 83 is separated from the air cushion 87. The gas in the air bag 88 enters the air cushion 87 through the hose 89. The air bag 88 is in a deflated state, and the rectangular block 5 is stuck in the mounting shell 4. The transmission shaft body 7 is initially locked. Then the moving block 83 is released. The elastic force of the spring 1 86 resets the moving block 83 and the U-shaped rod 84, so that the U-shaped rod 84 passes through the inner wall of the mounting shell 4 and is stuck in the locking hole 85, thereby locking the transmission shaft. The main body 7 is locked. When the moving block 83 is reset, the air cushion 87 will be squeezed, so that the gas in the air cushion 87 enters the air bag 88 through the hose 89, causing the air bag 88 to expand, thereby increasing the friction between the U-shaped rod 84 and the inner wall of the mounting shell 4, improving stability. After fixing, the mounting shell 4 can be driven to rotate by starting the motor, thereby driving the rectangular block 5 and the transmission shaft body 7 to rotate, and performing dynamic balancing tests on different parts of the transmission shaft body 7. With this design, the mounting seat 3 can slide on the outer surface of the support bar 2, so that the position of the two mounting seats 3 can be adjusted, and the position of the mounting mechanism 8 can be changed accordingly, so that transmission shaft bodies 7 of different lengths can be fixed. Through the setting of the mounting mechanism 8, the transmission shaft body 7 is locked by spring clamping. Compared with the traditional technology, the flange is used for locking, which is more convenient when fixing or removing the transmission shaft body 7.

[0030] Example 2

[0031] Reference Figure 1-Figure 5 The limiting mechanism 9 includes a pull rod 91 sliding on the mounting seat 3, a connecting block 92 is fixed to the top end of the pull rod 91, a lifting block 93 is fixed to the bottom end of the pull rod 91, and a spring 94 is sleeved on the outer surface of the pull rod 91. The two ends of the spring 94 are fixedly connected to the lifting block 93 and the mounting seat 3 respectively.

[0032] Reference Figure 1-Figure 5 The limiting mechanism 9 also includes an insertion rod 95 fixed to the bottom of the lifting block 93. A fixing hole 96 is provided on the bottom plate 1, and the insertion rod 95 is slidably connected to the fixing hole 96.

[0033] In the present invention, when the mounting seat 3 is slid on the outer surface of the support bar 2 to adjust the position of the mounting seat 3, it is necessary to pull the connecting block 92 upward to drive the pull rod 91, the lifting block 93 and the insertion rod 95 to move upward, and squeeze the spring 2 94. Then, the mounting seat 3 is adjusted to a suitable position. After the adjustment, the spring 2 94 can be released, and the elastic force of the spring 2 94 can be used to reset the lifting block 93 and the insertion rod 95, so that the insertion rod 95 is inserted into the corresponding fixing hole 96, and the mounting seat 3 is locked to prevent the mounting seat 3 from deflecting during the test.

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

Claims

1. A novel dynamic balancing fixture for a transmission shaft assembly, comprising a base plate (1), characterized in that: A support bar (2) is fixed on the top of the base plate (1), a mounting seat (3) is slidably mounted on the top of the support bar (2), a mounting shell (4) is rotatably mounted on the side of the mounting seat (3) via a bearing, a rectangular block (5) is embedded and mounted in the mounting shell (4), a flange (6) is fixed on the side of the rectangular block (5), a transmission shaft body (7) is mounted on the side of the flange (6) via screws, a mounting mechanism (8) for quickly disassembling the flange (6) is provided on the mounting shell (4), and a limiting mechanism (9) for fixing the mounting seat (3) is provided on the base plate (1).

2. A novel dynamic balancing fixture for a transmission shaft assembly according to claim 1, characterized in that: The mounting mechanism (8) comprises a mounting block (81) fixed to the top of the mounting shell (4); a fixed block (80) is fixed to the top of the mounting shell (4); a cross bar (82) is fixed between the fixed block (80) and the two mounting blocks (81); a moving block (83) is slidably mounted on the outer surface of the cross bar (82); a U-shaped rod (84) is fixed to the side of the moving block (83) close to the mounting block (81); the U-shaped rod (84) is slidably connected to the mounting block (81) and the mounting shell (4); a locking hole (85) is provided on the rectangular block (5); and the U-shaped rod (84) is slidably connected to the locking hole (85).

3. A novel dynamic balancing fixture for a transmission shaft assembly according to claim 2, characterized in that: The mounting mechanism (8) further comprises a spring (86) sleeved on the outer surface of the U-shaped rod (84), and the two ends of the spring (86) are respectively connected to the mounting block (81) and the moving block (83).

4. A novel dynamic balancing fixture for a transmission shaft assembly according to claim 2, characterized in that: The mounting mechanism (8) further comprises air cushions (87) fixed on both sides of the fixing block (80), an air bag (88) is fixed on the inner wall of the mounting shell (4), and a hose (89) is connected between the air cushion (87) and the air bag (88).

5. The novel dynamic balancing fixture for a transmission shaft assembly according to claim 1 is characterized in that: The limiting mechanism (9) includes a pull rod (91) sliding on the mounting seat (3), a connecting block (92) is fixed to the top end of the pull rod (91), a lifting block (93) is fixed to the bottom end of the pull rod (91), and a spring 2 (94) is sleeved on the outer surface of the pull rod (91), and the two ends of the spring 2 (94) are fixedly connected to the lifting block (93) and the mounting seat (3) respectively.

6. A novel dynamic balancing fixture for a transmission shaft assembly according to claim 5, characterized in that: The limiting mechanism (9) further comprises an inserting rod (95) fixed to the bottom of the lifting block (93); a fixing hole (96) is provided on the bottom plate (1); and the inserting rod (95) is slidably connected to the fixing hole (96).

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