Mounting structure of driving pump shaft core

Abstract

The utility model discloses a mounting structure of a driving pump shaft core, which comprises a core shaft main body and a clamping mechanism arranged on the core shaft main body, and the core shaft main body comprises a driving pump shaft and a transmission shaft; a bearing is arranged on the driving pump shaft and is fixedly connected with the driving pump shaft; a plurality of mounting grooves are formed in the transmission shaft and are distributed in a circumferential array by taking the transmission shaft as a center; the multiple clamping mechanisms are distributed in a circumferential array mode with the driving pump shaft as the center. The clamping mechanism comprises a base arranged on the bearing, a pushing block arranged on the base and a movable clamping block arranged on the base; a plurality of connecting rods are symmetrically arranged on the two sides of the movable clamping block, and each connecting rod is rotationally connected with the movable clamping block and the pushing block. According to the utility model, the clamping mechanism, the 45-degree chamfer of the mounting groove and the height of the groove edge, close to one end matched with the driving pump shaft, of the mounting groove are utilized; the mounting and clamping operation becomes simpler, the time is saved, and the production efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of drive pump shaft core installation, in particular to an installation structure of a drive pump shaft core. Background Art

[0002] In the traditional drive pump shaft installation structure, mechanical connection methods such as keyways or set screws are usually used to connect the pump shaft and the transmission shaft. A keyway is a long groove machined on the transmission shaft, and there is a key on the drive pump shaft that matches the keyway. After the key is inserted into the keyway, the torque is transmitted through the frictional force between the key and the keyway. This connection method is simple, but there may be wear between the key and the keyway, and relative sliding may occur under high loads. Set screw connection: By setting a threaded hole on the transmission shaft and passing a set screw through the hole on the drive pump shaft and screwing it into the threaded hole of the transmission shaft, the two shafts are fixed together. The set screw provides an axial clamping force, but it may need to be checked and tightened regularly to prevent loosening.

[0003] Currently, the prior art CN216743533U discloses an installation structure of a motor shaft core, including a motor shaft core, a shaft sleeve, and a head joint. The motor shaft core is provided with a shaft portion for installation. The shaft sleeve includes a cavity for sleeving the shaft portion. The head joint is provided with an inner cavity for installing the cavity. A clamping position is provided on the shaft portion, and a protrusion matching the clamping position is provided on the inner side of the cavity. After the shaft portion of the motor shaft core is sleeved into the cavity, the shaft portion is installed in the cavity by clamping the protrusion and the clamping position. Compared with the assembly mechanism of the traditional fan, this utility model saves the labor cost of screws and screwing screws. The appearance surface of the whole machine does not need to open screw holes, which is more beautiful. Moreover, when the fan swings, the friction sound generated between the motor shaft core and the shaft sleeve made of POM engineering plastic is small, improving the performance of the whole machine.

[0004] However, the above prior art still has the following problems:

[0005] 1. Complex operation; The installation method requires multiple steps of operation, such as aligning the clamping position and the protrusion, etc. This not only takes time but also requires professional tools or techniques in some cases, restricting the efficiency of the installation process.

[0006] 2. Connection stability problem; The connection method may not provide sufficient stability, especially when working under high loads or in high-temperature and high-vibration environments, the connection part may become loose or fail.

[0007] Therefore, it is necessary to provide an installation structure of a drive pump shaft core to solve the above technical problems. Summary of the Invention

[0008] The utility model overcomes the deficiencies of the prior art and provides an installation structure of a drive pump shaft core.

[0009] To achieve the above object, the technical solution adopted by the present utility model is: an installation structure for driving a pump shaft core, comprising: a core shaft main body and a clamping mechanism provided on the core shaft main body, characterized in that:

[0010] The core shaft main body includes: a driving pump shaft and a transmission shaft; a bearing is provided on the driving pump shaft, and the bearing is fixedly connected to the driving pump shaft; a plurality of installation grooves are provided on the transmission shaft, and the plurality of installation grooves are arranged in a circumferential array centered on the transmission shaft;

[0011] The plurality of clamping mechanisms are distributed in a circumferential array centered on the driving pump shaft;

[0012] The clamping mechanism includes: a base provided on the bearing, a pushing block provided on the base, and a movable clamping block provided on the base;

[0013] A plurality of connecting rods are symmetrically arranged on both sides of the movable clamping block, and each connecting rod is respectively rotatably connected to the movable clamping block and the pushing block.

[0014] In a preferred embodiment of the present utility model, the height of the groove edge of the installation groove near the end that cooperates with the driving pump shaft is half of the depth of the installation groove.

[0015] In a preferred embodiment of the present utility model, a ° chamfer is provided at the edge of the installation groove, and the depth of the chamfer is one-third of the depth of the installation groove.

[0016] In a preferred embodiment of the present utility model, the movable clamping block is rotatably connected to the base.

[0017] In a preferred embodiment of the present utility model, a clamping block is provided on the movable clamping block, and the shape of the clamping block matches the shape of the installation groove.

[0018] In a preferred embodiment of the present utility model, a sliding hole is provided on the pushing block, and a sliding rod is provided on the base.

[0019] In a preferred embodiment of the present utility model, the sliding hole is slidably sleeved with the sliding rod.

[0020] In a preferred embodiment of the present utility model, it is characterized in that: a spring is sleeved on each sliding rod, and both ends of the spring are respectively abutted against the base and the pushing block.

[0021] In a preferred embodiment of the present utility model, a push ring is sleeved on the driving pump shaft, a raised block is provided on the pushing block, and the push ring is fixedly connected to each raised block respectively.

[0022] In a preferred embodiment of the present utility model, several of the clamping mechanisms respectively correspond one-to-one to the positions of the mounting grooves.

[0023] The present utility model solves the defects existing in the background art and has the following beneficial effects:

[0024] (1) In the present utility model, through the clamping mechanism, the 45° chamfer of the mounting groove, and the height of the groove edge of the mounting groove near the end cooperating with the driving pump shaft; the installation and clamping operation becomes simpler, saves time, and improves production efficiency.

[0025] (2) In the present utility model, a clamping mechanism is provided. A clamping block is provided on the movable clamping block in the clamping mechanism, and its shape matches the shape of the mounting groove. Each connecting rod in the clamping mechanism is respectively rotatably connected to the movable clamping block and the pushing block. The pushing block controls the opening and closing of the clamping block; the pushing ring is fixedly connected to the protruding blocks on all the pushing blocks, and the pushing ring can control the opening and closing of all the clamping blocks; compared with the traditional device, the design of controlling the clamping block by the pushing ring in the present utility model makes the installation and clamping operation simpler, saves time, and improves production efficiency.

[0026] (3) In the present utility model, the clamping mechanisms are distributed in a circumferential array. Compared with the traditional device, this layout method in the present utility model improves the uniformity and symmetry of the clamping mechanisms, which helps to achieve a more balanced clamping force.

[0027] (4) The mounting groove in the present utility model is provided with a 45° chamfer; the chamfer depth is one-third of the depth of the mounting groove, which reduces the resistance when the clamping block enters the mounting groove. Compared with the traditional device, the design of the chamfer in the present utility model makes the clamping process smoother, reduces wear at the same time, and prolongs the service life of the components.

[0028] (5) The height of the groove edge of the mounting groove near the end cooperating with the driving pump shaft in the present utility model is one-half of the depth of the mounting groove. Compared with the traditional device, this dimensional design makes the clamping block enter the mounting groove more smoothly, makes the clamping process smoother, and provides support and stability during clamping, which is beneficial to achieving precise fit. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] The following further illustrates the present utility model in conjunction with the drawings and embodiments;

[0030] Figure 1 is the overall three-dimensional structure diagram of the preferred embodiment of the present utility model;

[0031] Figure 2 is the three-dimensional diagram of the transmission shaft of the preferred embodiment of the present utility model;

[0032] Figure 3It is a three-dimensional view of the drive shaft of the preferred embodiment of the present utility model;

[0033] Figure 4 It is a diagram of the clamping mechanism of the preferred embodiment of the present utility model;

[0034] In the figure: 1, mandrel body; 2, clamping mechanism; 3, drive pump shaft; 4, transmission shaft; 5, bearing; 6, mounting groove; 7, base; 8, push block; 9, movable clamping block; 10, connecting rod; 11, spring; 12, push ring; 13, protruding block. Specific embodiments

[0035] Now, the present utility model will be further described in detail with reference to the accompanying drawings and embodiments. These drawings are all simplified schematic diagrams, only illustrating the basic structure of the present utility model in a schematic manner, so they only show the components related to the present utility model.

[0036] As Figure 1 shown, an installation structure of a drive pump shaft core includes:

[0037] An installation structure of a drive pump shaft 3 core includes: a mandrel body 1 and a clamping mechanism 2 provided on the mandrel body 1;

[0038] The mandrel body 1 includes: a drive pump shaft 3 and a transmission shaft 4; a bearing 5 is provided on the drive pump shaft 3, and the bearing 5 is fixedly connected to the drive pump shaft 3; a plurality of mounting grooves 6 are provided on the transmission shaft 4, and the plurality of mounting grooves 6 are arranged in a circumferential array with the transmission shaft 4 as the center; the plurality of mounting grooves 6 are in mutual abutting and clamping connection with a plurality of clamping blocks 9, sharing the clamping force, making the clamping effect better, and ensuring the firmness of the connection.

[0039] As Figure 2 shown, the height of the groove edge of the mounting groove 6 near the end cooperating with the drive pump shaft 3 is one-half of the depth of the mounting groove 6. This size design makes it easier for the clamping block 9 to enter the mounting groove 6 and provides better support and stability during clamping, which is beneficial to achieving precise fit.

[0040] A 45° chamfer is provided at the edge of the mounting groove 6, and the chamfer depth is one-third of the depth of the mounting groove 6. By using the chamfer design of the mounting groove 6, the clamping block 9 is guided to enter and clamp smoothly, realizing the stable connection of the drive pump shaft 3 and the transmission shaft 4; the design of the 45° chamfer reduces the resistance when the clamping block 9 enters the mounting groove 6, making the clamping process smoother, and also reducing the wear of the clamping block 9 and the mounting groove 6, extending the service life of the components.

[0041] As Figure 3 , Figure 4 shown, a plurality of clamping mechanisms 2 are distributed in a circumferential array with the drive pump shaft 3 as the center; this layout method improves the uniformity and symmetry of the clamping mechanism 2, which helps to achieve a more balanced clamping force.

[0042] The clamping mechanism 2 includes: a base 7 provided on the bearing 5, a pushing block 8 provided on the base 7, and a movable clamping block 9 provided on the base 7;

[0043] A number of connecting rods 10 are symmetrically arranged on both sides of the movable clamping block 9, and each connecting rod 10 is rotatably connected to the movable clamping block 9 and the pushing block 8 respectively.

[0044] The movable clamping block 9 is rotatably connected to the base 7.

[0045] A clamping block is provided on the movable clamping block 9, and the shape of the clamping block matches the shape of the installation groove 6. The shape design of the clamping block ensures precise fit with the installation groove 6, improving the reliability of clamping and the accuracy of installation.

[0046] A sliding hole is provided on the pushing block 8, and a sliding rod is provided on the base 7.

[0047] The sliding hole is slidably sleeved with the sliding rod.

[0048] A spring 11 is sleeved on each sliding rod, and both ends of the spring 11 are respectively abutted against the base 7 and the pushing block 8. The spring 11 provides a restoring force to ensure that in the non-working state, the movable clamping block 9 remains in the retracted state, avoiding accidental detachment or damage. In the working state, the movable clamping block 9 is in a clamped state with the installation groove.

[0049] A push ring 12 is sleeved on the driving pump shaft 3, a convex block 13 is provided on the pushing block 8, and the push ring 12 is fixedly connected to each convex block 13 respectively. The fixed connection between the push ring 12 and the convex block 13 ensures the stability and reliability of the push ring during operation, enabling the pushing block 8 to accurately control the opening and closing of the movable clamping block 9.

[0050] A number of clamping mechanisms 2 are respectively in one-to-one correspondence with the positions of the installation grooves 6.

[0051] When the utility model is not in use, under the elastic force of the spring 11, the pushing block 8 abuts against one end of the sliding rod, and a number of movable clamping blocks 9 connected to the pushing block 8 retract towards the center; when the utility model is in use, the driving pump shaft 3 and the transmission shaft 4 are coaxially aligned, the push ring 12 is pushed, so that the pushing block 8 abuts against the other end of the sliding rod, a number of movable clamping blocks 9 connected to the pushing block 8 open outwards, the push ring 12 is rotated to make the clamping block correspond to the position of the installation groove; the driving pump shaft 3 and the transmission shaft 4 approach each other, the clamping block enters the installation groove under the limiting action of the chamfer of the installation groove, the push ring 12 is released, the movable clamping block 9 retracts towards the center, and the clamping block clamps the installation groove inward;

[0052] Based on the inspiration of the ideal embodiments of the present utility model, through the above description, relevant personnel can completely make various changes and modifications without departing from the technical idea of this utility model. The technical scope of this utility model is not limited to the content in the specification, and the technical scope must be determined according to the scope of the claims.

Claims

1. A mounting structure for a drive pump shaft core, comprising: A mandrel body (1) and a clamping mechanism (2) arranged on the mandrel body (1), characterized in that: The spindle body (1) comprises: a driving pump shaft (3) and a transmission shaft (4); a bearing (5) is arranged on the driving pump shaft (3), and the bearing (5) is fixedly connected to the driving pump shaft (3); a plurality of mounting grooves (6) are arranged on the transmission shaft (4), and the plurality of mounting grooves (6) are arranged in a circular array with the transmission shaft (4) as the center; The plurality of clamping mechanisms (2) are arranged in a circular array with the driving pump shaft (3) as the center; The clamping mechanism (2) comprises: a base (7) arranged on the bearing (5), a pushing block (8) arranged on the base (7), and a movable clamping block (9) arranged on the base (7); A plurality of connecting rods (10) are symmetrically arranged on both sides of the movable clamping block (9), and each connecting rod (10) is rotatably connected to the movable clamping block (9) and the pushing block (8) respectively.

2. The installation structure of the drive pump shaft core according to claim 1, characterized in that: The height of the groove edge of the installation groove (6) close to the end that cooperates with the drive pump shaft (3) is half of the depth of the installation groove (6).

3. The installation structure of the drive pump shaft core according to claim 1, characterized in that: The edge of the installation groove (6) is provided with a 45° chamfer, and the depth of the chamfer is one third of the depth of the installation groove (6).

4. The installation structure of the drive pump shaft core according to claim 1, characterized in that: The movable clamping block (9) is rotatably connected to the base (7).

5. The installation structure of the drive pump shaft core according to claim 1, characterized in that: The movable clamping block (9) is provided with a clamping block, and the shape of the clamping block matches the shape of the mounting groove (6).

6. The installation structure of the drive pump shaft core according to claim 1, characterized in that: The pushing block (8) is provided with a sliding hole, and the base (7) is provided with a sliding rod.

7. The installation structure of the drive pump shaft core according to claim 6, characterized in that: The sliding hole is slidably sleeved with the sliding rod.

8. The installation structure of the drive pump shaft core according to claim 6, characterized in that: A spring (11) is sleeved on each of the sliding rods, and two ends of the spring (11) are respectively in contact with the base (7) and the pushing block (8).

9. The installation structure of the drive pump shaft core according to claim 1, characterized in that: The driving pump shaft (3) is sleeved with a push ring (12), the pushing block (8) is provided with a protruding block (13), and the push ring (12) is fixedly connected to each protruding block (13) respectively.

10. The installation structure of the drive pump shaft core according to claim 1, characterized in that: The plurality of clamping mechanisms (2) correspond to the positions of the installation slots (6) one by one.

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