Tool for assembling duplex oil pump
Technical Field
The utility model relates to an assembly tool, in particular to a tool for assembling a duplex oil pump.
Background
The duplex oil pump is used as a core hydraulic component of the gearbox, and is directly related to safe and stable operation of the gearbox. For example, chinese patent CN110513285a discloses a duplex oil pump, which comprises a rear end cover, a housing, and an oil pump driving shaft, an oil pump cavity sleeve, a front end cover and a shaft sleeve which are arranged in the housing, wherein an oil inlet, a low-pressure oil outlet and a high-pressure oil outlet are arranged on the oil pump cavity sleeve, the oil inlet is connected with the oil inlet ends of the low-pressure pump outer rotor and the high-pressure pump outer rotor, and the low-pressure oil outlet and the high-pressure oil outlet are connected with the oil outlet ends of the low-pressure pump outer rotor and the high-pressure pump outer rotor. The duplex oil pump does not use a joint or oil pipe and other connection modes, reduces the number of parts, simplifies the assembly process and improves the working reliability.
The duplex oil pump generally adopts a unilateral suspension fixed assembly mode, which causes the problem of high assembly difficulty in the assembly process.
The current assembly process of the duplex oil pump is that one worker holds up the duplex oil pump by hand, and the other worker manually aligns the spline of the pump shaft and the shaft sleeve of the duplex oil pump to finish assembly. The process requires repeated alignment by workers, but because the weight of the duplex oil pump is large, the workers need to align the spline and install the bolt holes in a certain time, otherwise, the duplex oil pump is put down because of limited physical strength, and only the workers can test again after a little rest. The whole assembly process is time-consuming and takes more labor, and the speed of the whole assembly of the gearbox is limited.
Disclosure of utility model
The utility model aims to solve the technical problem of high assembly difficulty of the existing duplex oil pump, and provides a fixture for assembling the duplex oil pump.
In order to achieve the above object, the technical solution provided by the present utility model is as follows:
A frock for assembly of duplex oil pump for assembly duplex oil pump, its special character lies in:
Comprises a base, a lifting table arranged on the base and a bracket arranged on the lifting table;
A lifting structure is arranged between the lifting table and the base, and the distance between the lifting table and the base is adjusted through a lifting adjusting wheel arranged on the base;
A feeding structure is arranged between the bracket and the lifting platform, and the position of the bracket in the linear feeding groove is adjusted through a feeding adjusting wheel arranged on the lifting platform;
The upper end of the bracket is provided with a bearing and a limiting structure, the inner ring of the bearing is penetrated with a rotating shaft of the hand crank, the output end of the rotating shaft of the hand crank is provided with a fixing frame, and the limiting structure is used for rotationally limiting the fixing frame in a locking state;
The fixing frame is a U-shaped plate and comprises a connecting plate and two support plates respectively arranged at the upper end and the lower end of the connecting plate, the connecting plate is fixedly connected with the output end of a rotating shaft of the hand crank, at least two fixing through holes matched with the threaded hole positions of the duplex oil pump are arranged on the support plates, and the distance between the two support plates is matched with the radial dimension of the duplex oil pump;
the double-oil pump further comprises at least two fixing screws matched with the fixing through holes, and the fixing screws are used for fixing the double-oil pump on the fixing frame.
The limiting structure comprises a support, a bearing, a fixing frame, a supporting frame, a bearing, a fixing frame, a connecting plate, a fixing frame, a fixing plate and a locating plate, wherein the supporting frame is a rectangular plate which is vertically arranged on the lifting platform, the lower end of the rectangular plate is arranged in the linear feeding groove, the bearing is embedded at the upper end of the rectangular plate, the two locating plates are arranged at the side edges of the rectangular plate, corresponding to the fixing frame, and are rotatably connected with the corresponding side edges, the width of the rectangular plate is matched with the width of the connecting plate of the fixing frame, and the locating plates can rotate to the side edges, corresponding to the fixing frame, of the fixing frame to rotationally limit the fixing frame.
Further, the two locating pieces are arranged on the same side of the rectangular plate and distributed up and down, and the interval is smaller than the length of the connecting plate of the fixing frame.
Further, the locating plate is an L-shaped plate, and one end of the L-shaped plate is rotatably arranged on the side edge of the bracket through a screw.
Further, the bearing is a deep groove ball bearing.
Further, the screws and the fixing screws are hexagon socket head cap screws.
Compared with the prior art, the utility model has the beneficial effects that:
1. According to the tooling for assembling the duplex oil pump, through the design of the support, the fixing frame and the hand crank, the operation is simple, the duplex oil pump can be turned over easily, the axle sleeve spline and the bolt hole can be aligned fast, the assembly time and the labor are saved, and the assembly difficulty of the duplex oil pump is effectively reduced.
2. According to the tooling for assembling the duplex oil pump, the duplex oil pump can be quickly adjusted through the height adjusting wheel and the feeding adjusting wheel, and the purpose of quick assembly is achieved. In addition, the tool has adjustability and can be suitable for multiple occasions such as maintenance of the duplex oil pump.
Drawings
FIG. 1 is a schematic view of a tooling embodiment for assembling a dual oil pump of the present utility model clamping the dual oil pump;
fig. 2 is a schematic diagram of an embodiment of the present utility model assembled with a duplex oil pump.
The reference numerals are as follows, 1-base, 2-lifting table, 3-bracket, 4-fixing frame, 5-locating piece, 6-bearing, 7-hand crank, 8-lifting adjusting wheel, 9-feeding adjusting wheel, 10-duplex oil pump and 11-screw;
12-shaft sleeve, 13-oil pump shell, 14-hexagonal flange face bolt and 15-fixing screw.
Detailed Description
The following will further explain the specific technical scheme in the embodiment of the utility model by referring to the attached drawings.
The utility model provides a fixture for assembling a duplex oil pump, which is specially used for assembling the duplex oil pump. The tool utilizes the oil pipe mounting hole on the duplex oil pump to fix the duplex oil pump on the fixing frame by using the screw, and realizes the installation of the duplex oil pump by operating the crank handle, the lifting adjusting wheel and the feeding adjusting wheel.
Referring to fig. 1, a fixture for assembling a duplex oil pump comprises a base 1, a lifting table 2, a bracket 3, a fixing frame 4, two positioning sheets 5, a bearing 6 (namely, a deep groove ball bearing), a crank handle 7, a lifting adjusting wheel 8 and a feeding adjusting wheel 9.
The lifting table 2 and the lifting adjusting wheels 8 are arranged on the base 1, a lifting structure is arranged between the lifting table 2 and the base 1, and the lifting adjusting wheels 8 are used for controlling the lifting of the lifting table 2 so as to adjust the distance between the lifting table 2 and the base 1. The lifting platform 2 is provided with a linear feeding groove and a feeding adjusting wheel 9, the lower end of the support 3 is arranged in the linear feeding groove, a feeding structure is arranged between the support 3 and the lifting platform 2, and the support 3 can be controlled to move in the linear feeding groove through the feeding adjusting wheel 9. In this embodiment, the lifting structure is realized by a screw nut, the rotation of the lifting adjusting wheel 8 is converted into the vertical movement of the lifting table 2 by the screw nut, the feeding structure is realized by the screw nut, and the rotation of the feeding adjusting wheel 9 is converted into the linear movement of the bracket 3 by the screw nut.
The bracket 3 is provided with a locating piece 5, a bearing 6 and a hand crank 7, the bearing 6 is fixedly arranged at the upper end of the bracket 3, and a rotating shaft of the hand crank 7 passes through an inner ring of the bearing 6 and is connected with the fixing frame 4;
The fixing frame 4 is a U-shaped plate and comprises a connecting plate and two support plates respectively arranged at the upper end and the lower end of the connecting plate, the connecting plate is fixedly connected with the output end of a rotating shaft of the hand crank 7, two fixing through holes matched with the positions of oil pipe installation threaded holes of the duplex oil pump 10 are formed in the support plates, and the distance between the two support plates is matched with the radial size of the duplex oil pump 10. The support 3 is a rectangular plate, and the width of the rectangular plate is matched with the width of the connecting plate of the fixing frame 4.
The locating pieces 5 are L-shaped plates, the two locating pieces 5 form a limiting structure, the locating pieces are fixed on the same side edge of the support 3 corresponding to the bearing 6 through screws 11 (namely hexagon socket head cap screws) and can rotate, the distance is smaller than the length of a connecting plate of the fixing frame 4, and the locating pieces are used for rotationally limiting the fixing frame 4 in a locking state, so that the duplex oil pump 10 is fixed on the oil pump housing 13 through the hexagon flange face bolts 14.
The principle of the embodiment of the utility model is that the double oil pump 10 is fixed on the fixed frame 4 by two oil pipe installation threaded holes of the double oil pump 10 and two fixing screws 15 matched with the fixing through holes, so that the double oil pump 10 can be rotated by rotating the crank handle 7, and the double oil pump 10 is convenient for spline installation.
The working process of the embodiment of the utility model is as follows:
(1) The hand crank 7 is rocked to the vertical position, the positioning sheet 5 is rotated clockwise by 90 degrees to the horizontal position, at the moment, the opening of the fixing frame 4 is positioned at the vertical position, and the two support plates are positioned at the vertical position, so that the duplex oil pump 10 is convenient to install.
(2) The rear section of the duplex oil pump 10 is placed in the fixing frame 4, and the duplex oil pump 10 is fixedly connected to the fixing frame 4 by using the fixing screws 15 penetrating through screw through holes of the fixing frame 4.
(3) The lifting adjusting wheel 8 is manually adjusted to adjust the height of the duplex oil pump 10 to be consistent with the oil pump installation height of the oil pump housing 13.
(4) The locating piece 5 is rotated anticlockwise by 90 degrees to restore the original position. At this time, the dual oil pump 10 can be freely turned over by shaking the crank 7. Simultaneously, the feeding regulating wheel 9 and the hand crank 7 are manually regulated, and the pump shaft of the duplex oil pump 10 and the shaft sleeve 12 are assembled by a spline, and the process needs to be repeatedly regulated until the position is proper.
(5) After the splines of the two parts are aligned, the duplex oil pump 10 is mounted in place by adjusting the feed adjustment wheel 9, and then the crank 7 is rotated to a horizontal position, so that the bolt through holes of the duplex oil pump 10 are aligned with the bolt mounting holes on the oil pump housing 13.
(6) The locating piece 5 is shifted clockwise to the horizontal position to block the fixing frame 4, so that the fixing frame 4 is ensured not to rotate any more.
(7) The duplex oil pump 10 is fixed to the oil pump housing 13 with bolts 14.
(8) The fixing screw 15 for fixing the duplex oil pump 10 on the fixing frame 4 is loosened, the feeding adjusting wheel 9 is manually adjusted, the fixing frame 4 is withdrawn, the positioning sheet 5 is pulled back to the vertical position, and the whole duplex oil pump 10 assembly process is completed.
The foregoing description is only illustrative of the present utility model and is not intended to limit the scope of the utility model, and all equivalent structural changes made by the present utility model and the accompanying drawings, or direct or indirect application in other related technical fields, are included in the scope of the present utility model. It will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations may be made to these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.