Motor connecting shaft device for hydraulic pump
Technical Field
The utility model relates to a technical field that the hydraulic pump was used especially relates to a motor connecting shaft device for hydraulic pump.
Background
The hydraulic pump is a power element of a hydraulic system and is driven by an engine or a motor, and the main function of the hydraulic pump is to suck oil from a hydraulic oil tank, form pressure oil to be discharged and send the pressure oil to an execution element.
In the related art, when the hydraulic pump is driven, a coupling device of a designated type is generally selected according to the actual sizes of a drive shaft of the hydraulic pump and a motor shaft of a motor, so that the motor shaft of the motor is connected with the drive shaft of the hydraulic pump, and the transmission of power is realized.
For the above-mentioned related art, the inventor thinks that, in the in-service use process, only need carry out interim, quick dismouting with hydraulic pump and motor under the operating environment such as the index that carries out the pump machine detects, the pump machine of new technology chooses experiments and the maintenance of special pump machine, not only needs quick dismouting to satisfy the work needs to in time obtain with the motor shaft of motor and the even axle device of the drive shaft adaptation of hydraulic pump simultaneously, consequently, the device of even axle transmission between pump machine and the motor that has high adaptability and easy dismouting is awaited developing urgently.
Disclosure of Invention
In view of the above-mentioned drawbacks of the prior art, an object of the present invention is to provide a motor coupling device for a hydraulic pump, which can clamp a driving shaft of the hydraulic pump in a direction of an axis of a collar by using clamping blocks provided on a connection structure at one end of a main shaft, and clamp a motor shaft of a motor by using clamping blocks of the connection structure at the other end, thereby achieving a purpose of power transmission.
In order to achieve the above objects and other related objects, the present invention provides a motor coupling device for a hydraulic pump, including a main shaft and a connecting structure; the connecting structures are arranged at two ends of the main shaft and comprise a lantern ring, a shaft clamping block and a locking sleeve; the lantern ring is coaxial and fixedly connected with the main shaft, a plurality of through grooves are formed in the circumferential side wall of the lantern ring, and the through grooves are uniformly distributed along the circumferential direction of the lantern ring; the shaft clamping blocks and the through grooves are arranged in the through grooves in a one-to-one correspondence manner, the shaft clamping blocks are connected with the groove walls of the through grooves in a sliding manner along the radial direction of the lantern ring, and one ends, far away from the axis of the lantern ring, of the shaft clamping blocks are provided with guide inclined planes; the locking sleeve is sleeved on the lantern ring and is in threaded connection with the lantern ring, and when the locking sleeve moves in the direction far away from the main shaft on the lantern ring, the locking sleeve extrudes the guide inclined plane to force the shaft clamping block to move in the axis direction of the lantern ring.
Furthermore, down's screw thread is equipped with on the lateral wall of the lantern ring, thereby locking sleeve through with down's screw thread cooperation with lantern ring threaded connection, the pot head that is located locking sleeve on the lantern ring and faces the main shaft is equipped with lock nut, lock nut and locking sleeve's screw thread revolve to opposite and with down's screw thread cooperation.
Furthermore, a plurality of convex edges are arranged on the end face, facing the axis of the lantern ring, of one end of the clamping shaft block, and the length directions of the convex edges are all parallel to the axis of the lantern ring.
Furthermore, a groove is formed in the end face, facing the axis of the lantern ring, of the clamping shaft block, the groove is parallel to the axis of the lantern ring, a soft friction pad is fixedly arranged in the groove, and the soft friction pad extends out of a notch of the groove in a natural state.
Furthermore, the device also comprises a supporting seat, wherein the main shaft penetrates through the supporting seat and is rotationally connected with the supporting seat.
As described above, the utility model discloses following beneficial effect has at least:
1. under the extrusion of the locking sleeve to the guide inclined plane, each clamping shaft block synchronously advances towards the axis direction of the sleeve ring, so that a motor shaft or a hydraulic pump driving shaft positioned in the sleeve ring is uniformly clamped along the circumferential direction, the positioning of the sleeve ring and the clamped motor shaft or hydraulic pump is realized, and the motor shaft drives the main shaft to rotate so as to drive the driving shaft of the hydraulic pump to rotate when rotating, so that the transmission connection is realized. The clamping shaft block can concentrically clamp cylinders with different diameters, so that the device has high adaptability, simple structure, simple operation and convenient quick assembly and disassembly;
2. because the locking sleeve is in threaded connection with the lantern ring, and the device clamps a motor shaft or a hydraulic pump driving shaft through the extrusion of the locking sleeve on the guide inclined plane, in the transmission process of the device, if the locking sleeve rotates due to inertia, the clamping effect and the transmission stability are influenced, through the arrangement of the Down's threads and the locking nut, after the locking sleeve abuts against the guide inclined plane and all the clamping shaft blocks are kept clamped, a worker installs the locking nut on the lantern ring, and abuts against the locking sleeve through the anti-loosening effect of the Down's threads, so that the possibility of clamping looseness is reduced;
3. the friction force between the clamping shaft block and a motor shaft of the motor or a driving shaft of the hydraulic pump is increased by arranging the convex ribs with the length directions parallel to the axis of the sleeve ring.
4. By arranging the groove and fixedly arranging the soft friction pad in the groove, when the clamping shaft block clamps the motor shaft or the driving shaft of the hydraulic pump, the soft friction pad is extruded and attached to the clamping surface, so that the possibility of reduction and even failure of transmission efficiency caused by relative sliding between the clamping shaft block and the clamping surface is further reduced;
5. the supporting seat supports the main shaft, the possibility of bending moment load borne by the main shaft is reduced, and the main shaft is supported through the supporting seat, so that a worker can install and detach the connecting structure and the hydraulic pump or the motor conveniently, and the convenience of the device is improved.
Drawings
Fig. 1 is a schematic structural diagram of the present invention for showing the overall structure of the device.
Fig. 2 is an enlarged schematic view of a portion a in fig. 1.
Fig. 3 is a schematic view of an explosion structure for embodying the mounting structure of the upper rib and the soft friction pad of the clamping shaft block of the present invention.
Fig. 4 is an enlarged structural view of a portion B in fig. 3.
Description of reference numerals:
1. a main shaft; 2. a connecting structure; 3. a collar; 31. a through groove; 32. clamping a shaft block; 321. a guide slope; 322. A convex edge; 323. a trench; 324. a soft friction pad; 4. a locking sleeve; 5. locking the nut; 6. and (4) supporting the base.
Detailed Description
The embodiments of the present invention are described below with reference to specific embodiments, and other advantages and effects of the present invention will be readily apparent to those skilled in the art from the disclosure of the present invention.
Please refer to fig. 1 to 4, the utility model provides a motor connecting shaft device for hydraulic pump, including main shaft 1 and connection structure 2, connection structure 2 is equipped with two sets ofly and sets up respectively at 1 length direction's of main shaft both ends, and is used for connecting main shaft 1 with the drive shaft of hydraulic pump and the motor shaft of motor respectively to the realization is to the transmission between motor shaft and the hydraulic pump drive shaft. The connection structure 2 comprises a collar 3, a clamping shaft block 32 and a locking sleeve 4. Lantern ring 3 sets firmly at 1 both ends of main shaft, the clamp shaft piece 32 slides on the circumference lateral wall of the lantern ring 3 and along the direction motion that is close to or keeps away from to 3 axes of lantern ring, the locking sleeve can extrude clamp shaft piece 32 and force each clamp shaft piece 32 synchronous to draw close to 3 axes of lantern ring, thereby realize the clamp of the drive shaft to motor shaft or pneumatic cylinder, locking sleeve and 3 threaded connection of lantern ring, thereby be convenient for the staff to operate connection structure 2, realize fast, convenient dismantlement and installation, simultaneously because the space between the clamp shaft piece 32 is variable, consequently connection structure 2 can press from both sides tightly motor shaft or the hydraulic pump drive shaft of different diameters, make the device have good adaptability.
A plurality of through grooves 31 are formed in the circumferential side wall of the lantern ring 3, and the clamping shaft block 32 is in sliding fit with the groove wall of the through groove 31 through the matching of the sliding block and the sliding groove. The length direction of the shaft clamping block 32 is parallel to the axis direction of the lantern ring 3, and one end of the shaft clamping block 32, which is far away from the axis of the lantern ring 3, is provided with a guide inclined surface 321, and one end of the guide inclined surface 321, which is far away from the main shaft 1, inclines towards the direction far away from the axis of the lantern ring 3.
The side wall of the shaft clamping block 32 facing the axis of the lantern ring 3 is provided with a plurality of convex ribs 322, and the length direction of the convex ribs 322 is parallel to the axis of the lantern ring 3. And the sidewall provided with the convex edge 322 is provided with a groove 323, the groove 323 is arranged parallel to the convex edge 322, the groove 323 is positioned in the middle of the sidewall of the shaft clamping block 32, a soft friction pad 324 is fixedly arranged in the groove 323, and the soft friction pad 324 can be made of rubber material, so that when the shaft clamping block 32 clamps a corresponding motor shaft or driving shaft, the soft friction pad 324 is extruded and deformed to be attached to the clamped surface to increase the friction force, and in the clamping state, the shaft clamping block 32 and the clamped surface are more difficult to slide relatively.
Locking sleeve 4 cover is established on the lantern ring 3 to down's screw has been seted up on the lantern ring 3, and locking sleeve 4 is through the cooperation with down's screw and threaded connection on the lantern ring 3, and the staff makes locking sleeve 4 extrusion direction inclined plane 321 through rotatory locking sleeve 4, thereby makes each collet block 32 advance to the axis direction of lantern ring 3, and then presss from both sides tightly the drive shaft of the inboard motor shaft of lantern ring 3 or hydraulic pump.
The locking sleeve 4 that is located on the lantern ring 3 and is close to one side of main shaft 1 still overlaps and is equipped with lock nut 5, lock nut 5 and tang's screw thread cooperation and lock nut 5 the screw thread direction of turning is opposite with the screw thread direction of locking sleeve 4 on the same lantern ring 3, thereby keep away from to reduce lock sleeve 4 and take place relative rotation with the lantern ring 3 in transmission process through the locking of tang's screw thread, cause the possibility that the tight degree of clamp shaft piece 32 supported reduces, during the installation, the staff at first overlaps the lantern ring 3 on connected motor shaft or hydraulic pump drive shaft, then rotate the locking sleeve and make each clamp shaft piece 32 cooperation press from both sides corresponding axle, at last with lock nut 5 rotation to the state that supports tightly with locking sleeve 4 tip.
Still be equipped with supporting seat 6 on the main shaft 1, seted up the mounting hole on the supporting seat 6, main shaft 1 passes the mounting hole, and the cover is equipped with the bearing on the main shaft 1 and rotates through the cooperation of bearing and mounting hole and connect on supporting seat 6.
The main shaft 1 can be set into a multi-section type according to actual needs, and the adjacent two ends are connected through a universal joint to realize torque transmission, and when the main shaft 1 is set into the multi-section type, each section is connected with an independent supporting seat 6.
The implementation principle of the embodiment is as follows:
under the extrusion of the locking sleeve 4 to the guide inclined plane 321, each clamping shaft block 32 synchronously moves forward towards the axis direction of the lantern ring 3, so that a motor shaft or a hydraulic pump driving shaft which is positioned inside the lantern ring 3 is uniformly clamped along the circumferential direction, the lantern ring 3 and the clamped motor shaft or hydraulic pump are positioned, the motor shaft is driven to rotate, the main shaft 1 is driven to rotate when the motor shaft rotates, and the driving shaft of the hydraulic pump is driven to rotate, so that the transmission connection is realized. The clamping shaft block 32 can concentrically clamp cylinders with different diameters, so that the device has high adaptability, simple structure, simple operation and convenient quick assembly and disassembly;
because the locking sleeve 4 is in threaded connection with the lantern ring 3, and the device clamps a motor shaft or a hydraulic pump driving shaft by extruding the guide inclined plane 321 through the locking sleeve 4, in the transmission process of the device, if the locking sleeve 4 rotates due to inertia, the clamping effect and the transmission stability are influenced, through the arrangement of the Down's screw and the locking nut 5, after the locking sleeve 4 abuts against the guide inclined plane 321 and keeps clamping each clamping shaft block 32, a worker installs the locking nut 5 on the lantern ring 3, and abuts against the locking sleeve 4 through the anti-loosening effect of the Down's screw, so that the possibility of clamping looseness is reduced;
the friction between the clamping shaft block 32 and the motor shaft of the motor or the drive shaft of the hydraulic pump is increased by providing a rib 322 with a length direction parallel to the axis of the collar 3.
By arranging the groove 323 and fixedly arranging the soft friction pad 324 in the groove 323, when the shaft clamping block 32 clamps the motor shaft or the driving shaft of the hydraulic pump, the soft friction pad 324 is extruded and attached to the clamping surface, so that the possibility of reduction and even failure of transmission efficiency caused by relative sliding between the shaft clamping block 32 and the clamping surface is further reduced;
the supporting seat 6 supports the main shaft 1, the possibility of bending moment load on the main shaft 1 is reduced, the supporting seat 6 supports the main shaft 1, a worker can conveniently install and detach the connecting structure 2 and a hydraulic pump or a motor, and convenience of the device is improved.
Therefore, the invention effectively overcomes various defects in the prior art and has high industrial utilization value.
The foregoing embodiments are merely illustrative of the principles and utilities of the present invention and are not intended to limit the invention. Any person skilled in the art can modify or change the above-mentioned embodiments without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which may be made by those skilled in the art without departing from the spirit and scope of the present invention as defined in the appended claims.