An apparatus capable of simultaneously grinding a plurality of plunger balls

Abstract

The present application belongs to the technical field of plunger pump ball head, and discloses a device capable of simultaneously grinding multiple plunger ball heads, which comprises multiple sliding shoes, multiple sliding shoe fixing gears, a sliding shoe fixing gear support, a main shaft, a concave-shaped cam rod, a swing disc, a first sliding sleeve, a second sliding sleeve and a cross axle universal joint connected in sequence, and a sliding shoe autorotation transmission gear set, wherein the multiple sliding shoe fixing gears are installed on the sliding shoe fixing gear support; the multiple sliding shoes are installed on the multiple sliding shoe fixing gears; the sliding shoe fixing gears are engaged with the sliding shoe autorotation transmission gear set, and the sliding shoe autorotation transmission gear set is connected to the main shaft; two cam bearings are respectively installed at opposite ends of the cam rod, the swing disc is provided with a groove, and the cam bearings are arranged in the groove; the cross axle universal joint is connected to the swing disc; and the cam rod is detachably connected to the main shaft. The grinding mode combining autorotation and swing is adopted, so that multi-angle running-in between the ball head and the sliding shoe is realized.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of plunger pump ball head, more particularly, to a device capable of simultaneously grinding multiple plunger ball heads. BACKGROUND

[0002] The plunger is the core component in the plunger pump, and the specific movement of the plunger cannot be absent of the plunger ball head. The plunger shoe-ball head group is generally produced and manufactured in a machining manner. The two mutually matched components will inevitably produce tolerances in the production process, which will cause the plunger pump to be unable to smoothly run, and the size and surface roughness of the shoe and the ball head must be ground for finishing.

[0003] The traditional grinding device has two problems, including that the grinding method is too simple and cannot truly realize uniform grinding of the ball head, and that only a single ball head can be ground, and the grinding efficiency is not obviously improved compared with manual grinding. SUMMARY

[0004] In view of the above defects or improvement needs of the prior art, the present application provides a device capable of simultaneously grinding multiple plunger ball heads, which adopts a grinding method combining self-rotation and swinging, so that multi-angle matching between the ball head and the shoe is realized, the grinding efficiency and uniformity can be effectively guaranteed, the grinding precision is improved, and multiple shoe-ball head groups can be simultaneously ground, greatly improving the processing efficiency.

[0005] To achieve the above-mentioned purpose, according to one aspect of the present application, a device capable of simultaneously grinding multiple plunger ball heads is provided, which comprises multiple shoes, multiple shoe fixing gears, a shoe fixing gear support, a main shaft, a concave-shaped cam rod, a swinging disc, a first sliding sleeve, a second sliding sleeve, a cross shaft type universal joint, and a shoe self-rotation transmission gear set. Multiple shoe fixing gears are installed on the shoe fixing gear support through bearings. Multiple shoes are installed on multiple shoe fixing gears through variable diameter sleeves. The shoe fixing gear is engaged with the shoe self-rotation transmission gear set, and the shoe self-rotation transmission gear set is connected to the main shaft, which is used to drive the shoe to rotate. The opposite ends of the cam rod are respectively provided with two cam bearings. The swinging disc is provided with a groove, and the cam bearings are arranged in the groove. One end of the second sliding sleeve is connected to the cross shaft type universal joint, and the other end is sleeved on one end of the first sliding sleeve. The cross shaft type universal joint is connected to the swinging disc. The cam rod is detachably connected to the main shaft.

[0006] In operation, one end of the ball head to be ground is connected to the other end of the first sliding sleeve, and the other end is movably connected to the shoe. The main shaft drives the shoe to rotate and simultaneously drives the first sliding sleeve to swing by rotating, so as to realize the grinding of the combination of self-rotation and swinging.

[0007] Furthermore, the slipper rotation transmission gear set includes a large gear, a small gear, an idler gear, a coaxial gear, and a main shaft gear that mesh with multiple slipper fixed gears. The small gear is connected to the large gear via a shaft, and the large gear and the small gear are located on opposite sides of the slipper fixed gear bracket. The idler gear meshes with the small gear. The coaxial gear includes a first gear, a first shaft connected at one end to the first gear, and a second gear connected at the other end of the first shaft. The first gear meshes with the idler gear, and the second gear meshes with the main shaft gear. The main shaft gear is fixedly connected to the main shaft.

[0008] Furthermore, the end of the first sliding sleeve away from the second sliding sleeve is provided with an internal thread, and the first sliding sleeve forms a threaded connection with the ball head through the internal thread.

[0009] Furthermore, the sway plate is provided with multiple receiving holes, which are arranged at equal intervals around the circumference and are used to receive the cross-shaped universal joint.

[0010] Furthermore, the eccentricity of the cam rod is adjustable, and a mounting groove is provided at the bottom of the cam rod. Bolts and connecting pieces cooperate to detachably connect the cam rod to the main shaft.

[0011] Furthermore, one end of the spindle passes through the spindle fixing bracket and is connected to the spindle gear; the spindle fixing bracket is disc-shaped.

[0012] Furthermore, the device also includes a ball head grinding and pressure application assembly, which includes multiple first connecting plates, multiple optical axes, multiple optical axis linear bearings, multiple coil springs, multiple quick-release clamping rings, and multiple second connecting plates. One end of each of the multiple first connecting plates is fixedly connected to the edge of the slipper fixing gear bracket. The multiple optical axis linear bearings are respectively disposed at the other end of the multiple first connecting plates and sleeved on one end of the optical axis, allowing the slipper fixing gear bracket to float axially along the optical axis. The other end of the optical axis is connected to one end of the second connecting plate, and the other end of the second connecting plate is connected to the outer edge of the spindle fixing bracket. The quick-release clamping ring is disposed at one end of the optical axis adjacent to the second connecting plate. The coil spring is sleeved on the optical axis, and its two ends are respectively connected to the slipper fixing gear bracket and the quick-release clamping ring.

[0013] Furthermore, the number of the slippers is equal to the number of the first slip sleeves.

[0014] Furthermore, a set screw is provided on the side of the first sliding sleeve, and the set screw is used to fix the ball head.

[0015] Furthermore, a sliding connection is formed between the first sliding sleeve and the second sliding sleeve to change the distance of the first sliding sleeve relative to the universal joint.

[0016] In summary, compared with the prior art, the device for simultaneously grinding multiple plunger heads provided by the present invention has the following advantages:

[0017] 1. Install multiple sliding shoes on the sliding shoe fixing gear, install the ball head on the telescopic ball head fixing assembly, and add an appropriate amount of polishing paste between the sliding shoes and the ball head. Input power through the main shaft, and the cam swing mechanism drives multiple cross-type universal joints to perform synchronous fixed circular motion, thereby making the ball head swing synchronously. At the same time, multiple sliding shoes rotate synchronously. Under the axial force applied by the ball head grinding pressure assembly, the sliding shoe-ball head assembly performs a combined grinding process of rotation and swing.

[0018] 2. The sliding shoe fixed gear bracket is floating, the eccentricity of the cam swing mechanism is adjustable, and with the addition of the telescopic ball head fixing component, the device can be adapted to sliding shoe-ball head assemblies of different lengths and swing amplitudes.

[0019] 3. This invention has a simple structure, a simple principle, good processing quality, and can grind multiple ball heads at the same time, which can effectively improve the efficiency of ball head grinding. Attached Figure Description

[0020] Figure 1 This is a three-dimensional schematic diagram of a device provided by the present invention that can simultaneously grind multiple plunger ball heads;

[0021] Figure 2 yes Figure 1 A schematic diagram of a device capable of simultaneously grinding multiple plunger ball heads along an angle;

[0022] Figure 3 yes Figure 1 A schematic diagram of a device capable of simultaneously grinding multiple plunger balls at another angle;

[0023] Figure 4 yes Figure 1 A schematic diagram of the device capable of simultaneously grinding multiple plunger ball heads after removing the retractable ball head fixing component and the ball head grinding pressure application component;

[0024] Figure 5 yes Figure 1 A schematic diagram of a swaying disk that can simultaneously grind multiple plunger ball heads;

[0025] Figure 6 yes Figure 1 A schematic diagram of the working operation of the telescopic ball head fixing assembly of the device that can simultaneously grind multiple plunger ball heads.

[0026] In all the accompanying drawings, the same reference numerals are used to denote the same elements or structures, wherein: 1-slipper, 2-slipper fixed gear, 3-slipper fixed gear bracket, 4-optical axis, 5-optical axis linear bearing, 6-coil spring, 7-first sliding sleeve, 8-second sliding sleeve, 9-cross-type universal joint, 10-swing plate, 11-quick release clamp, 12-cam rod, 13-main shaft fixed bracket, 14-second connecting plate, 15-main shaft, 16-large gear, 17-small gear, 18-idler gear, 19-coaxial gear, 20-main shaft gear, 21-cam bearing, 22-ball head. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention. Furthermore, the technical features involved in the various embodiments of this invention described below can be combined with each other as long as they do not conflict with each other.

[0028] Please see Figure 1 , Figure 2 and Figure 3 This invention provides a device capable of simultaneously grinding multiple plunger ball heads. The device includes a slipper fixing gear 2, a slipper fixing gear bracket 3, a slipper rotation transmission gear set, a retractable ball head fixing assembly, a cam rocking mechanism, a main shaft fixing bracket 13, and a ball head grinding pressure application assembly. The slipper fixing gear 2 is mounted on the slipper fixing gear bracket 3, and the slipper rotation transmission gear set is connected to the slipper fixing gear bracket 3. The retractable ball head fixing assembly is connected to the cam rocking mechanism. The cam rocking mechanism is connected to the main shaft fixing bracket 13, and the ball head grinding pressure application assembly is connected to both the slipper fixing gear bracket 3 and the main shaft fixing bracket 13.

[0029] The slipper fixing gear bracket 3 is basically disc-shaped and has multiple mounting holes evenly arranged along its central axis. Multiple bearings are installed in these mounting holes, and the multiple slipper fixing gears 2 are mounted on the slipper fixing gear bracket 3 via these bearings. In this embodiment, the number of mounting holes is the same as the number of slippers 1, both being 10. The slippers 1 to be ground are mounted on the slipper fixing gears 2 via variable diameter sleeves, and the variable diameter sleeves can be replaced to accommodate slippers of different diameters.

[0030] Please see Figure 4The slipper rotation transmission gear set includes a large gear 16, a small gear 17, an idler gear 18, a coaxial gear 19, and a main shaft gear 20, all meshing with multiple slipper fixed gears 2. The small gear 17 is connected to the large gear 16 via a shaft, and the large gear 16 and the small gear 17 are located on opposite sides of the slipper fixed gear bracket 3. The idler gear 18 meshes with the small gear 17. The coaxial gear 19 includes a first gear, a first shaft connected at one end to the first gear, and a second gear connected at the other end of the first shaft. The first gear meshes with the idler gear 18, and the second gear meshes with the main shaft gear 20. The main shaft gear 20 is fixedly connected to a main shaft 15. The main shaft 15 is vertically arranged. In this embodiment, the size of the second gear is slightly larger than the size of the first gear.

[0031] The configuration of the slide shoe rotation transmission gear set ensures that the rotation direction of the slide shoe 1 is the same as the swing direction of the ball head 22, similar to instant milling in turning and milling. Moreover, the rotation speed of the slide shoe 1 is much greater than the swing speed of the ball head 22, which improves the accuracy and efficiency of ball head grinding.

[0032] Please see Figure 6 The retractable ball joint fixing assembly includes a first sliding sleeve 7, a second sliding sleeve 8, and a cross-shaped universal joint 9. One end of the second sliding sleeve 8 is fixedly connected to the cross-shaped universal joint 9, and one end of the first sliding sleeve 7 is fitted inside the other end of the second sliding sleeve 8. The first sliding sleeve 7 and the second sliding sleeve 8 slide relative to each other to change the length of the retractable ball joint fixing assembly. The relative positions of the first sliding sleeve 7 and the second sliding sleeve 8 are locked by screws to fix the length formed by the first sliding sleeve 7 and the second sliding groove 8. In this embodiment, a set screw is provided on one side of the first sliding sleeve 7 to fix the ball head 22 and prevent the ball head 22 from coming out of the first sliding sleeve 7. An internal thread is provided on the end of the first sliding sleeve 7 away from the second sliding sleeve 8, and the first sliding sleeve 7 forms a threaded connection with the ball head 22 through the internal thread. During operation, the ball head 22 forms a movable connection with the slipper 1.

[0033] Please see Figure 5The cam rocking mechanism includes a U-shaped cam rod 12 and a rocking disk 10, with two cam bearings mounted at opposite ends of the cam rod 12. The rocking disk 10 has a groove, the central axis of which coincides with the central axis of the rocking disk 10. The rocking disk 10 also has multiple receiving holes arranged circumferentially at equal intervals, used to accommodate the cross-shaped universal joint 9. The cam bearings are disposed within the groove, allowing the rocking disk 10 to withstand forces in two axial directions. The eccentricity of the cam rod 12 is adjustable. In this embodiment, the bottom of the cam rod 12 has a mounting groove, and bolts and connecting pieces cooperate to detachably connect the cam rod 12 to the main shaft 15.

[0034] One end of the spindle 15 passes through the spindle fixing bracket 13 and is connected to the spindle gear 20. In this embodiment, the spindle fixing bracket 13 is basically disc-shaped.

[0035] The ball head grinding and pressure application assembly includes multiple first connecting plates, multiple optical axes 4, multiple optical axis linear bearings 5, multiple coil springs 6, multiple quick-release clamping rings 11, and multiple second connecting plates 14. One end of each of the first connecting plates is fixedly connected to the edge of the slipper fixing gear bracket 3. The multiple optical axis linear bearings 5 ​​are respectively disposed at the other end of the multiple first connecting plates and sleeved on one end of the optical axis 4, allowing the slipper fixing gear bracket 3 to float axially along the optical axis. The other end of the optical axis 4 is connected to one end of the second connecting plate 14, and the other end of the second connecting plate 14 is connected to the outer edge of the spindle fixing bracket 13. The quick-release clamping ring 11 is disposed at one end of the optical axis 4 adjacent to the second connecting plate 14. The coil spring 6 is sleeved on the optical axis 4, and its two ends are respectively connected to the slipper fixing gear bracket 3 and the quick-release clamping ring 11. By adjusting the position of the quick-release clamping ring 11, the coil spring 6 can be in a compressed or stretched state, thereby applying pressure or tension to the ball head 22. In this embodiment, the number of optical axes 4, the number of optical axis linear bearings 5, the number of coil springs 6, and the number of quick-release clamping rings 11 are all the same, which is five. It can be understood that in other embodiments, the number of optical axes 4, linear bearings 5, coil springs 6, and quick-release clamping rings 11 can be increased or decreased according to actual needs.

[0036] When the main shaft 15 rotates, the cam rod 12 rotates and drives the rocker disk 10 to revolve around a fixed center without rotation. This revolve motion drives the telescopic ball head fixing assembly, composed of the cross shaft universal joint 9, the second sliding sleeve 8, and the first sliding sleeve 7, to swing around the center of the ball head 22 with the tail end in a circular swing motion. At the same time, the main shaft gear 20 also drives other gears, ultimately causing multiple shoe fixing gears 2 to synchronously drive the shoe 1 to rotate, performing a combined rotation and swing grinding process.

[0037] In addition to adjusting the eccentricity, the cam rod 12 can also adjust its axial position, thereby changing the axial position of the entire rocker plate 10. The first sliding sleeve 7 and the second sliding sleeve 8 on the telescopic ball head fixing assembly can adjust the overall length by loosening the screws, so as to accommodate ball heads of different lengths and realize rocking motion at different angles.

[0038] By setting the eccentricity and position of the cam rod 12 and the length of the telescopic ball head fixing assembly, the position of the slipper fixing gear bracket 3 can be adjusted adaptively and uniquely. At this time, by adjusting the position of the quick-release clamping ring 11, a pulling force or a pressure can be applied to the slipper fixing gear bracket 3 to achieve the purpose of applying grinding pressure to the ball head 22.

[0039] Those skilled in the art will readily understand that the above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A device capable of simultaneously grinding multiple plunger ball heads, characterized in that: the device comprises multiple sliding shoes, multiple sliding shoe fixing gears, a sliding shoe fixing gear support, a main shaft, a concave cam rod, a swing disc, a first sliding sleeve, a second sliding sleeve, a cross shaft universal joint and a sliding shoe rotation transmission gear set, the multiple sliding shoe fixing gears are installed on the sliding shoe fixing gear support through bearings; the multiple sliding shoes are installed on the multiple sliding shoe fixing gears through variable diameter sleeves respectively; the sliding shoe fixing gears are engaged with the sliding shoe rotation transmission gear set, the sliding shoe rotation transmission gear set is connected to the main shaft and used to drive the sliding shoes to rotate; two cam bearings are installed on opposite ends of the cam rod respectively, the swing disc is provided with a groove, and the cam bearings are arranged in the groove; one end of the second sliding sleeve is connected to the cross shaft universal joint, the other end of the second sliding sleeve is sleeved on one end of the first sliding sleeve, and the cross shaft universal joint is connected to the swing disc; the cam rod is detachably connected to the main shaft; the sliding shoe rotation transmission gear set can ensure that the rotation direction of the sliding shoes is the same as the swing direction of the ball heads, and the rotation speed of the sliding shoes is greater than the swing speed of the ball heads; in operation, one end of a ball head to be ground is connected to the other end of the first sliding sleeve, and the other end of the ball head is movably connected to the sliding shoe; the main shaft drives the sliding shoes to rotate and drives the first sliding sleeve to swing at the same time through rotation, so that the grinding of the combination of rotation and swing is realized. The sliding shoe rotation transmission gear set comprises a large gear engaged with the multiple sliding shoe fixing gears, a small gear, an idler gear, a coaxial gear and a main shaft gear, the small gear is connected to the large gear through a shaft, and the large gear and the small gear are located on opposite sides of the sliding shoe fixing gear support respectively; the idler gear is engaged with the small gear; the coaxial gear comprises a first gear, a first shaft connected to one end of the first gear and a second gear connected to the other end of the first shaft; the first gear is engaged with the idler gear, and the second gear is engaged with the main shaft gear; and the main shaft gear is fixedly connected to the main shaft. The first sliding sleeve is provided with an internal thread at an end away from the second sliding sleeve, and a threaded connection is formed between the first sliding sleeve and the ball head through the internal thread.

2. The apparatus for simultaneously lapping a plurality of plunger balls of claim 1 wherein: The swing disc is also provided with multiple accommodation holes, the multiple accommodation holes are arranged at equal intervals in a circle, and the accommodation holes are used to accommodate the cross shaft universal joint.

3. The apparatus for simultaneously lapping a plurality of plunger balls of claim 1 wherein: The eccentricity of the cam rod can be adjusted, the bottom of the cam rod is provided with a mounting groove, and a bolt and a connecting plate are matched to detachably connect the cam rod to the main shaft.

4. The apparatus for simultaneously lapping a plurality of plunger balls of claim 1 wherein: One end of the main shaft passes through the main shaft fixing support and is connected to the main shaft gear; and the main shaft fixing support is disc-shaped.

5. A device for simultaneously lapping a plurality of plunger balls as claimed in any one of claims 1 to 4, wherein: ​ 6. The apparatus for simultaneously lapping a plurality of plunger balls of claim 2 wherein: ​ 7. The apparatus for simultaneously lapping a plurality of plunger balls of claim 6 wherein: The device also comprises a ball head grinding pressure assembly, which comprises a plurality of first connecting plates, a plurality of optical shafts, a plurality of optical shaft linear bearings, a plurality of coil springs, a plurality of quick-release clamping rings and a plurality of second connecting plates. One end of the plurality of first connecting plates is fixedly connected to the edge of the sliding shoe fixed gear support. The plurality of optical shaft linear bearings are respectively arranged at the other end of the plurality of first connecting plates and are sleeved on one end of the optical shafts, so that the sliding shoe fixed gear support can float in the axial direction of the optical shafts. The other end of the optical shafts is connected to one end of the second connecting plates. The other end of the second connecting plates is connected to the outer edge of the main shaft fixed support. The quick-release clamping ring is arranged at one end of the optical shaft adjacent to the second connecting plate. The coil spring is sleeved on the optical shaft, and both ends thereof are respectively connected to the sliding shoe fixed gear support and the quick-release clamping ring.

8. The apparatus for simultaneously lapping a plurality of plunger balls of any of claims 1-4, wherein: The number of the sliding shoes is equal to the number of the first sliding sleeves.

9. The apparatus for simultaneously lapping a plurality of plunger balls of any of claims 1-4, wherein: The side surface of the first sliding sleeve is provided with a set screw for fixing the ball head.

10. The apparatus for simultaneously lapping a plurality of plunger balls of any of claims 1-4, wherein: The first sliding sleeve and the second sliding sleeve are in sliding connection to change the distance of the first sliding sleeve relative to the cross shaft type universal joint.

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