A fixed tool for honing the inner wall of the oil pump barrel

Abstract

The utility model relates to the technical field of oil pumps, and specifically to a fixed tooling for honing the inner wall of an oil pump barrel, comprising a slide, wherein two support plates arranged in parallel are arranged on the slide, one of which is fixedly connected to the slide, and the other is slidably connected, a telescopic mechanism is arranged between the two support plates, coaxially arranged through holes are correspondingly opened on the two support plates, and a group of clamping claws arranged around the through holes are respectively arranged on opposite end surfaces of the two support plates; the clamping claws comprise an outer clamping block and an inner clamping block, the end of the outer clamping block is fixedly connected to the support plate, a limiting boss is arranged on the inner side of the end of the inner clamping block, and the outer clamping block and the inner clamping block are provided with slidably matched inclined surfaces. The utility model can clamp and fix pump barrels of different pipe diameters.

Description

Technical Field

[0001] The utility model relates to the technical field of oil well pumps, in particular to a fixed tool used for honing the inner wall of an oil well pump barrel. Background Art

[0002] At present, the fixtures for honing the inner wall of the pump barrel of the oil well pump are mainly divided into two categories. One is to fix it with two calipers. Since there are serrated teeth inside the calipers, it is easy to scratch the outer wall of the pump barrel when fixing it. The other is to fix the pump barrel with a hoop. Although this structure will not scratch the pump barrel, the hoop needs to be adapted to the pump barrel and cannot achieve compatibility with multiple sizes.

[0003] In addition, when clamping and fixing, whether it is rotating the handle of the caliper to tighten it or twisting the locking bolt of the hoop, it is quite time-consuming and laborious. Utility Model Content

[0004] The purpose of the utility model is to address the defects of the prior art and to provide a fixed tooling for honing the inner wall of an oil pump barrel, which can clamp and fix pump barrels of different diameters firmly and reliably without scratching the outer wall of the pump barrel.

[0005] The technical solution of the utility model is: a fixed tool for honing the inner wall of a pump barrel of an oil well pump, comprising a slide, on which two parallel supporting plates are arranged, one of which is fixedly connected to the slide, and the other is slidably connected;

[0006] A telescopic mechanism is provided between the two support plates, through holes arranged coaxially are provided on the two support plates, and a group of claws arranged around the through holes are provided on the opposite end surfaces of the two support plates;

[0007] The clamping claw comprises an outer clamping block and an inner clamping block, the end of the outer clamping block is fixedly connected to the support plate, the inner side of the end of the inner clamping block is provided with a limiting boss, and the outer clamping block and the inner clamping block are provided with inclined surfaces for sliding fit;

[0008] A slide groove is provided on the inclined surface of the outer clamping block, and a slider slidably connected to the slide groove is provided on the inner clamping block. A spring supported between the slider and the support plate is also provided in the slide groove. When the inner clamping block moves toward the support plate, the lower end surface of the inner clamping block moves toward the center of the through hole at the same time.

[0009] Preferably, an end cover for limiting the sliding position of the slider is provided at the front end of the outer clamping block.

[0010] Preferably, a group of bolt mounting holes are provided on the slide.

[0011] Preferably, clamping blocks are provided on both sides of the support plate to be fixed to the slide, and the slide is provided with clamping grooves that cooperate with the clamping blocks.

[0012] Preferably, the telescopic mechanism is a pneumatic cylinder, a hydraulic cylinder or an electric telescopic rod.

[0013] Compared with the prior art, the utility model has the following advantages: the utility model has a simple and reasonable structure, low manufacturing cost, can be adapted to pump barrels of different pipe diameters, has higher versatility, is firmly clamped and fixed, and the clamping fitting surface has no stuck teeth and will not cause wear problems on the outer wall of the pump barrel. In addition, the telescopic mechanism is used as a driving component, which saves time and effort to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural schematic diagram of the utility model;

[0015] Figure 2 It is a structural schematic diagram of the slide;

[0016] Figure 3 It is a schematic diagram of the assembly structure of the claw and the support plate;

[0017] Figure 4 Schematic diagram of the cross-sectional structure of the claw;

[0018] In the figure: 1, slide, 2, front support plate, 3, telescopic mechanism, 4, rear support plate, 5, bolt mounting hole, 6, slot, 7, outer clamping block, 8, end cover, 9, inner clamping block, 10, limiting boss, 11, through hole, 12, clamping block, 13, slide groove, 14, spring, 15, slider. DETAILED DESCRIPTION

[0019] The utility model is further described below with reference to the accompanying drawings and embodiments. Example 1

[0020] like Figures 1 to 4 A fixed tool for honing the inner wall of a pump barrel of an oil pump comprises a slide 1 on which a front support plate 2 and a rear support plate 4 arranged in parallel are provided.

[0021] The front support plate 2 is slidably connected to the slide 1, blocks 12 are provided on both sides of the rear support plate 4, and a slot 6 cooperating with the block 12 is provided on the slide 1. The position of the rear support plate 4 and the slide 1 is fixed by inserting the block 12 into the slot 6.

[0022] A telescopic mechanism 3 is provided between the two support plates, and the telescopic mechanism 3 may be a cylinder, a hydraulic cylinder or an electric telescopic rod.

[0023] The two support plates are provided with coaxial through holes 11 for inserting the honing head. The opposite end surfaces of the two support plates are provided with a group of claws arranged around the through holes 11.

[0024] Each set of clamping claws includes an outer clamping block 7 and an inner clamping block 9. The end of the outer clamping block 7 is fixedly connected to the support plate. The inner side of the end of the inner clamping block 9 is provided with a limiting boss 10. The outer clamping block 7 and the inner clamping block 9 are provided with inclined surfaces for sliding fit.

[0025] A slide groove 13 is provided on the inclined surface of the outer clamping block 7, and a slider 15 slidably connected to the slide groove 13 is provided on the inner clamping block 9. A spring 14 supported between the slider 15 and the support plate is also provided in the slide groove 13. When the inner clamping block 9 moves toward the support plate, the lower end surface of the inner clamping block 9 moves toward the center of the through hole 11 at the same time.

[0026] Working principle:

[0027] When in use, the pump barrel is placed between the support plates on both sides, and then the telescopic mechanism 3 is controlled to shorten so that the two ends of the pump barrel respectively support the limiting bosses 10 of a group of adjacent claws, so that the inner clamping block 9 moves closer to the support plate. At the same time, under the sliding guiding action of the inclined surface, a group of inner clamping blocks 9 of the surroundingly arranged claws move closer to the middle to clamp the pump barrel.

[0028] The utility model has a simple and reasonable structure, low manufacturing cost, can be adapted to pump barrels of different pipe diameters, has higher versatility, and is firmly clamped and fixed. The clamping fitting surface has no stuck teeth and will not cause wear to the outer wall of the pump barrel. Example 2

[0029] This embodiment is optimized based on the above embodiment, specifically:

[0030] An end cover 8 for limiting the sliding position of the slider 15 is provided at the front end of the outer clamping block 7 to prevent the slider 15 from escaping from the slide groove 13 .

[0031] A group of bolt mounting holes 5 are provided on the slide 1 for fixedly mounting on the machine platform of the honing device.

[0032] The present invention is not limited to the above-mentioned implementation modes. Within the knowledge scope of those skilled in the art, various changes can be made without departing from the purpose of the present invention. The changed contents still belong to the protection scope of the present invention.

Claims

1. A fixed tool for honing the inner wall of a pump barrel of an oil well pump, comprising a slide, characterized in that: The slide table is provided with two supporting plates arranged in parallel, one of which is fixedly connected to the slide table and the other is slidably connected; A telescopic mechanism is provided between the two support plates, through holes arranged coaxially are provided on the two support plates, and a group of claws arranged around the through holes are provided on the opposite end surfaces of the two support plates; The clamping claw comprises an outer clamping block and an inner clamping block, the end of the outer clamping block is fixedly connected to the support plate, the inner side of the end of the inner clamping block is provided with a limiting boss, and the outer clamping block and the inner clamping block are provided with inclined surfaces for sliding fit; A slide groove is provided on the inclined surface of the outer clamping block, and a slider slidably connected to the slide groove is provided on the inner clamping block. A spring supported between the slider and the support plate is also provided in the slide groove. When the inner clamping block moves toward the support plate, the lower end surface of the inner clamping block moves toward the center of the through hole at the same time.

2. The fixed tool for honing the inner wall of the oil well pump barrel according to claim 1, characterized in that: The front end of the outer clamping block is provided with an end cover for limiting the sliding position of the slider.

3. The fixed tool for honing the inner wall of the oil well pump barrel according to claim 1, characterized in that: A group of bolt mounting holes are arranged on the slide platform.

4. The fixed tool for honing the inner wall of a pump barrel of a wellbore pump according to claim 1, characterized in that: There are clamping blocks on both sides of the support plate that needs to be fixed to the slide, and the slide is provided with clamping grooves that cooperate with the clamping blocks.

5. The fixed tool for honing the inner wall of a pump barrel of an oil well pump according to claim 1, characterized in that: The telescopic mechanism is a cylinder, a hydraulic cylinder or an electric telescopic rod.

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