A clamping device for torque oil pump gear

Abstract

The present application provides a clamping device for an oil pump gear for upper torque, relating to the technical field of oil pump processing, comprising two support and fixing plates and a top limit piece, the two support and fixing plates are respectively arranged on both sides of the oil pump to be assembled, the top limit piece comprises a top frame plate with a U-shaped limit opening and fixed together with the top ends of the two support and fixing plates, and two movable bars that slide on both sides of its top and are symmetrical about the U-shaped limit opening, as well as an adjusting part fixed to the top frame plate and driving the two movable bars to move, and a rib plate with a U-shaped limit opening movably connected between the ends of the two movable bars away from the adjusting part and spanning the rib plate. A tooling gear is fixed on the side of the top of the top frame plate opposite to the rib plate, and the rib plate can be indirectly driven by the adjusting part to approach the tooling gear to fix the oil pump gear to be assembled. The present application solves the problem of poor limiting effect in the above-mentioned scheme by adopting the adjustment part and the two movable bars as well as the cooperation of the rib plate and the tooling gear.

Description

Technical Field

[0001] The present application relates to the field of oil pump processing, and in particular to a clamping device for torque-applying oil pump gears. Background Art

[0002] The oil pump is a lightweight and compact pump that comes in three main types: in-line, distributed, and single-piece. The oil pump requires a power source to operate, and its lower camshaft is driven by the engine crankshaft gear.

[0003] When assembling the signal disk inside the oil pump, it is necessary to tighten it with a wrench. However, during the tightening process, the gears usually rotate, so the torque cannot be applied.

[0004] In this regard, the Chinese patent application number CN202111154992.X discloses a bolt tightening tool for an oil pump gear signal disc, which mainly includes a frame plate and a fixing clamp welded to one side of its inner wall. The frame plate is divided into multiple areas of limiting gears by multiple partitions. When in use, the gear is first rotated and assembled in the corresponding limiting area of the frame plate, and the clamp is engaged with the gear, thereby limiting the gear, which is convenient to a certain extent for applying torque to the signal disc to be assembled on the gear surface.

[0005] However, in the process of implementing the technical solutions in the embodiments of the present application, the inventors of the present application found that the above technology has at least a technical problem of poor limiting effect:

[0006] Specifically, although the oil pump gear in the above scheme is engaged with the clamp, the side away from the clamp does not contact the other side of the inner wall of the frame plate, that is, there is a gap. Therefore, only relying on the clamp to limit one side of the oil pump gear still cannot effectively fix the oil pump gear. It is still easy for the oil pump gear to follow the rotation when the torque is applied to the subsequent signal disk, and the effect of the torque on the signal disk cannot be effectively improved. Summary of the Invention

[0007] In order to overcome the existing deficiencies, an embodiment of the present application provides a clamping device for an oil pump gear for applying torque, which can solve the problem of poor limiting effect in the above-mentioned solution and effectively improve the torque effect on the signal disk.

[0008] The technical solution adopted by the embodiment of the present application to solve its technical problem is: a clamping device for the oil pump gear for upper torque, including two supporting fixing plates and a top limit member.

[0009] Two supporting fixing plates are respectively arranged on both sides of the oil pump to be assembled;

[0010] The top limit member includes a top frame plate with a U-shaped limit opening and fixed together with the top ends of the two supporting fixed plates, and two movable bars that slide on both sides of its top and are symmetrical about the U-shaped limit opening, and an adjusting part that is fixed on the top frame plate and drives the two movable bars to move, and a rib plate with a U-shaped limit opening movably connected between one end of the two movable bars away from the adjusting part, and a tooling gear is fixed to the side of the top of the top frame plate opposite to the rib plate, and the rib plate can be approached to the tooling gear under the indirect drive of the adjusting part to fix the oil pump gear to be assembled.

[0011] In a specific embodiment, the two supporting and fixing plates are both L-shaped and have through holes A opened in pairs on both sides of the bottom.

[0012] In a specific embodiment, screw holes are opened at equal distances on the top of the two supporting fixing plates, and multiple long waist holes are opened at equal distances on both sides of the top frame plate. Each of the long waist holes is equipped with a bolt to lock with the corresponding screw hole.

[0013] In a specific embodiment, the two movable bars are parallel and are connected to sliders at the bottom thereof, and slide rails adapted to the sliders are provided on both sides of the top frame plate.

[0014] In a specific embodiment, both movable bars are provided with U-shaped notches for the ribs to be movably engaged.

[0015] In a specific embodiment, two movable bars are arranged on both sides of the tooling gear, and the distance between the two movable bars is greater than the diameter of the tooling gear.

[0016] In a specific embodiment, the adjustment part includes a servo motor and a ball screw pair and a screw nut pair rotatably connected to the ball screw pair. The servo motor is installed on the side of the top of the top frame plate away from the rib plate, and its output end is connected to the ball screw pair. The two outer side walls of the screw nut pair are connected with connecting rods, and the two connecting rods are respectively fixed to the two movable bars.

[0017] In a specific embodiment, the two connecting rods are both L-shaped, and the tooling gear is located in the area between the two connecting rods and does not contact the two connecting rods.

[0018] The advantages of the embodiments of the present application are:

[0019] By adopting the adjustment part and the cooperation of the two movable bars as well as the rib plate and the tooling gear, the problem of poor limiting effect in the above solution is solved. During operation, the rib plate is first removed to move the oil pump gear to the appropriate position and then the rib plate is installed. The position of the movable bar is adjusted using the adjustment part to indirectly move the rib plate so that the oil pump gear is stuck between the tooling gear and the rib plate, which can stabilize its position and effectively improve the torque effect on the signal disk. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is an axonometric view of the structure of the clamping device for the upper torque oil pump gear provided in an embodiment of the present application;

[0021] Figure 2 A top view of the structure of the clamping device for the upper torque oil pump gear provided in an embodiment of the present application;

[0022] Figure 3 A schematic diagram of the support and fixing plate structure provided in an embodiment of the present application;

[0023] Figure 4 A schematic diagram of the top frame plate structure provided in an embodiment of the present application;

[0024] Figure 5 This is a schematic structural diagram of the connection relationship between the top frame plate and the movable bar provided in the embodiment of the present application.

[0025] Description of main reference numerals:

[0026] 10-support fixing plate; 110-screw hole; 20-top limiter; 210-top frame plate; 211-long waist hole; 212-slide rail; 220-movable bar; 221-U-shaped notch; 230-adjustment part; 231-servo motor; 232-ball screw pair; 233-screw nut pair; 234-connecting rod; 240-rib plate; 250-tooling gear; 260-slider. DETAILED DESCRIPTION

[0027] The technical solution in the embodiment of the present application is to solve the problem of poor limiting effect in the above solution. The overall idea is as follows:

[0028] Example:

[0029] See also Figure 1 A clamping device for torque-applying oil pump gears includes two support plates 10 and a top stopper 20. The two support plates 10 lift the top stopper 20 to a fixed height, facilitating the insertion of the oil pump gears. The top stopper 20 stably holds oil pump gears of varying sizes in place, effectively reducing rooting of the oil pump gears during torque-applying operation on the signal plate.

[0030] See also Figure 1 and Figure 3 The two support and fixing plates 10 are respectively arranged on both sides of the oil pump to be assembled. Among them, the two support and fixing plates 10 can locate the position of the top limit member 20 to assist in placing the oil pump gear into the limit position.

[0031] The two support and fixing plates 10 are both L-shaped and have a pair of through holes A on both sides of the bottom. The through holes A are used to fit external bolts to facilitate positioning the support and fixing plates 10 on an external load-bearing platform.

[0032] See also Figure 1 、 Figure 2 、 Figure 4 and Figure 5 The top stopper 20 includes a top frame plate 210 with a U-shaped stopper and fixed to the tops of the two support and fixing plates 10; two movable bars 220 that slide on both sides of the top of the top frame plate and are symmetrical about the U-shaped stopper; and an adjustment portion 230 fixed to the top frame plate 210 and driving the two movable bars 220 to move. The ends of the two movable bars 220 away from the adjustment portion 230 are movably engaged with a rib plate 240 that spans the U-shaped stopper. A tooling gear 250 is fixed to the top of the top frame plate 210 on the side opposite the rib plate 240. The rib plate 240 can be indirectly driven by the adjustment portion 230 to move closer to the tooling gear 250 to fix the oil pump gear to be assembled. The adjustment portion 230 can directly drive the two movable bars 220 to slide on the top frame plate 210, indirectly causing the rib plate 240 to move closer to or away from the tooling gear 250, thereby facilitating the positioning of oil pump gears of different sizes.

[0033] The tops of the two support and fixing plates 10 are each provided with screw holes 110 at equal intervals. Multiple elongated holes 211 are also provided on both sides of the top frame plate 210 at equal intervals. Each elongated hole 211 is fitted with a bolt that locks into the corresponding screw hole 110. By inserting a bolt through the elongated holes 211 and tightening it into the corresponding screw hole 110, the top frame plate 210 is secured to the support and fixing plates 10. The elongated holes 211 also facilitate adjusting the spacing between the two support and fixing plates 10, facilitating the placement of oil pumps of varying sizes.

[0034] The two movable bars 220 are parallel and connected to the bottom of the slider 260. The top frame plate 210 has a slide rail 212 on both sides adapted to the slider 260. Figure 5 The slider 260 and the slide rail 212 cooperate to achieve stable sliding connection between the two movable bars 220 and the top frame plate 210, thereby facilitating adjustment of the positions of the two movable bars 220.

[0035] The two movable bars 220 are both provided with U-shaped notches 221 for the ribs 240 to be movably engaged. The two U-shaped notches 221 can realize the movably engaging of the ribs 240 and the two movable bars 220.

[0036] The two movable bars 220 are arranged on both sides of the tooling gear 250, and the distance between them is greater than the diameter of the tooling gear 250. The above size limitation makes the movement of the two movable bars 220 unaffected by the position of the tooling gear 250.

[0037] The adjustment unit 230 includes a servo motor 231, a ball screw assembly 232, and a screw nut assembly 233 rotatably connected to the ball screw assembly 232. The servo motor 231 is mounted on the top side of the top frame plate 210, away from the rib 240, with its output end connected to the ball screw assembly 232. Connecting rods 234 are connected to the outer walls of the screw nut assembly 233, and the two connecting rods 234 are respectively fixed to the two movable bars 220. Activating the servo motor 231 directly drives the ball screw assembly 232 to rotate, indirectly causing the screw nut assembly 233 to drive the two connecting rods 234 to move. This causes the oil pump gear to be stuck between the tooling gear 250 and the rib 240 connected to the two movable bars 220, effectively reducing the risk of the oil pump gear rotating when torque is applied to the signal disk.

[0038] The two connecting rods 234 are both L-shaped, and the tooling gear 250 is located in the area between them and does not contact them. The above-mentioned size restrictions ensure that the movement of the two connecting rods 234 is not affected by the movement of the tooling gear 250, which makes the oil pump gear engagement process smooth.

[0039] When using:

[0040] First, remove the rib 240 so that the oil pump gear to be limited moves into the U-shaped limit opening of the top frame plate 210, and then re-lock the rib 240 at the two U-shaped notches 221. Start the servo motor 231 to directly drive the ball screw pair 232 to rotate, and indirectly make the screw nut pair 233 drive the two connecting rods 234 to move, so that the oil pump gear is stuck between the tooling gear 250 and the rib 240, which effectively reduces the situation where the oil pump gear rotates when the torque on the signal disk is applied. At the same time, it is also convenient to limit and fix oil pump gears of different sizes, and the applicability is also effectively improved accordingly.

[0041] Finally, it should be noted that the above embodiments are merely examples for the purpose of illustrating the present invention and are not intended to limit the embodiments. Those skilled in the art will readily appreciate that other variations or modifications based on the above description are possible. It is not necessary and impossible to provide an exhaustive list of all embodiments. However, obvious variations or modifications arising therefrom remain within the scope of protection of the present invention.

Claims

1. A clamping device for an oil pump gear for torque application, characterized in that: include Two supporting fixing plates are respectively arranged on both sides of the oil pump to be assembled; The top limiting member includes a top frame plate with a U-shaped limiting opening and fixed together with the top ends of the two supporting and fixing plates, two movable bars sliding on both sides of the top thereof and symmetrically about the U-shaped limiting opening, and an adjusting portion fixed to the top frame plate and driving the two movable bars to move, the two movable bars being movably engaged with a rib plate spanning the U-shaped limiting opening between one end of the two movable bars away from the adjusting portion, a tooling gear being fixed to the top frame plate on a side opposite to the rib plate, and the rib plate being able to approach the tooling gear under the indirect drive of the adjusting portion to fix the oil pump gear to be assembled; The two movable bars are parallel and connected to sliders at their bottoms, and both sides of the top frame are provided with slide rails adapted to the sliders; The adjustment part includes a servo motor and a ball screw pair and a screw nut pair rotatably connected to the ball screw pair. The servo motor is installed on the side of the top of the top frame plate away from the rib plate, and its output end is connected to the ball screw pair. The two outer side walls of the screw nut pair are connected with connecting rods, and the two connecting rods are respectively fixed to the two movable bars.

2. The clamping device for the upper torque oil pump gear according to claim 1, characterized in that: The two supporting and fixing plates are both L-shaped and have through holes A opened in pairs on both sides of the bottom.

3. The clamping device for the upper torque oil pump gear according to claim 1, characterized in that: The top ends of the two support fixing plates are equidistantly provided with screw holes, and the two sides of the top frame plate are equidistantly provided with multiple long waist holes, and each of the long waist holes is equipped with a bolt that is locked with the corresponding screw hole.

4. The clamping device for the upper torque oil pump gear according to claim 1, characterized in that: The two movable bars are both provided with U-shaped notches for the ribs to be movably engaged.

5. The clamping device for the upper torque oil pump gear according to claim 1, characterized in that: The two movable bars are arranged on both sides of the tooling gear, and the distance between the two movable bars is greater than the diameter of the tooling gear.

6. The clamping device for the upper torque oil pump gear according to claim 1, characterized in that: The two connecting rods are both L-shaped, and the tooling gear is located in the area between the two connecting rods and does not contact the two connecting rods.

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