Piston rod for oil drilling mud pump

Abstract

The utility model relates to the technical field of petroleum drilling, and provides a piston rod for a petroleum drilling mud pump, which comprises a rod body, a positioning frame is sleeved on the rod body, a scraping fixing component is arranged on the positioning frame, and a height adjusting component is arranged on the positioning frame. The scraping fixing assembly comprises a tripod, the tripod is arranged on the positioning frame, a stabilizing frame is arranged on the inner side wall of the tripod, an inserting sleeve is arranged at the lower end of the stabilizing frame, a scraping piece is arranged on the bottom face of the inserting sleeve, a fixing ring is arranged at the top of the tripod, a limiting ring is arranged on the upper end face of the fixing ring, and a supporting frame is arranged on the bottom face of the limiting ring. A driving wheel is arranged on the supporting frame, and an arc-shaped face is arranged on the inner side wall of the driving wheel. By means of the technical scheme, the problems that in the prior art, a piston rod is usually connected through an oil cylinder, no external force is used for positioning, the piston rod is prone to inclining when stressed, the fixing effect is poor after the piston rod is positioned, and errors are prone to occurring are solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of oil drilling, specifically, and relates to a piston rod for an oil drilling mud pump. BACKGROUND

[0002] After exploration, the oil storage block is found, that is, using special equipment and technology, a cylindrical hole of a certain diameter is drilled downward or to one side at a preselected surface position, and the work of drilling to the underground oil and gas layer is performed.

[0003] Drilling is a process of forming a wellbore by using drilling equipment and rock breaking tools, and the purpose is to evaluate geology, discover oil and gas reservoirs, and develop oil and gas.

[0004] During drilling, the piston rod moves downward to the drilling part, but the piston rod has the following problems during use: 1. The piston rod is usually connected by an oil cylinder, and no external force is used for positioning, which causes the piston rod to tilt when subjected to force; 2. The positioning of the piston rod is not good, and errors are prone to occur. In view of this, a piston rod for an oil drilling mud pump is developed. SUMMARY

[0005] The utility model provides a kind of piston rod for an oil drilling mud pump, solve the piston rod in the related art usually by oil cylinder connection, and no external force is positioned, which causes the piston rod to tilt when subjected to force, the positioning of the piston rod is not good, and errors are prone to occur.

[0006] The technical scheme of the utility model is as follows: including

[0007] The rod body is provided with a positioning frame;

[0008] The scraping and fixing assembly is arranged on the positioning frame;

[0009] The height adjusting assembly is arranged on the positioning frame;

[0010] The scraping and fixing assembly includes a tripod, which is arranged on the positioning frame, and a stable frame is arranged on the inner side wall of the tripod, a penetrating sleeve is arranged at the lower end of the stable frame, a scraping piece is arranged on the bottom surface of the penetrating sleeve, a fixing ring is arranged at the top of the tripod, a limiting ring is arranged on the upper end surface of the fixing ring, a support frame is arranged on the bottom surface of the limiting ring, a driving wheel is arranged on the support frame, and an arc surface is arranged on the inner side wall of the driving wheel.

[0011] As a further technical scheme, the side wall of the penetrating sleeve is provided with a drainage groove, the penetrating sleeve has the same inner diameter as the limiting ring, and the rod body is inserted into the penetrating sleeve and the limiting ring.

[0012] As a further technical scheme, the height adjusting assembly comprises a fixing frame arranged on the upper end surface of the positioning frame, a fixing sheet arranged on the top of the fixing frame, a screw rod inserted into the fixing sheet, screw threads arranged on the screw rod, and a supporting foot piece arranged on the bottom of the screw rod.

[0013] As a further technical scheme, the tripod is an inclined frame body, the number of the tripods is three, the bottom of each of the three tripods is fixedly connected with the positioning frame, and the top of each of the three tripods is fixedly connected with the fixing ring.

[0014] As a further technical scheme, the supporting foot piece is an arc-shaped piece, and the bottom of the supporting foot piece is provided with an antiskid rubber pad.

[0015] As a further technical scheme, the screw rod is threadedly connected with the positioning frame through the screw threads.

[0016] As a further technical scheme, the arc-shaped surface is matched with the outer contour of the rod body, and the number of the driving wheels is two, and the two driving wheels are located on opposite sides of the rod body.

[0017] As a further technical scheme, the positioning frame has a circular ring structure, and the arc-shaped contour of the positioning frame is matched with the arc-shaped contour of the supporting foot piece.

[0018] As a further technical scheme, the scraping piece has a triangular cross section, the tip of the scraping piece is arranged downward, and the scraping piece is attached to the rod body.

[0019] As a further technical scheme, the rod body extends out of the scraping piece after being inserted into the limiting ring.

[0020] The working principle and beneficial effects of the utility model are as follows:

[0021] The utility model realizes the following effects: 1. the positioning frame is fixed through the tripod, the penetrating sleeve is used for positioning the rod body, the side wall of the rod body can be cleaned through the scraping piece during the extension and retraction process, the silt and oil stains are scraped clean, the rod body is positioned through the limiting ring on the fixing ring, the rod body is positioned through the meshing of the arc-shaped surface on the driving wheel and the rod body, the effect of strengthening the positioning of the rod body is achieved, and the deviation of the angle of the rod body is prevented; 2. the height of the supporting foot piece can be adjusted by rotating the screw rod. DRAWINGS

[0022] The present invention will be further described in detail below with reference to the accompanying drawings and specific implementation methods.

[0023] Figure 1 This is a schematic diagram of the structure of the utility model;

[0024] Figure 2 This is a cross-sectional view of the fixing ring of the utility model;

[0025] Figure 3 This is an axonometric view of the interlaced sleeve of the utility model;

[0026] Figure 4 For this utility model Figure 1 A magnified view of part A;

[0027] In the figure: 1. Rod body; 2. Positioning frame; 3. Scraper fixing assembly; 3-1. Tripod; 3-2. Stabilizing frame; 3-3. Insert sleeve; 3-4. Scraper blade; 3-5. Fixing ring; 3-6. Limiting ring; 3-7. Support frame; 3-8. Drive wheel; 3-9. Arc surface; 3-10. Drain groove; 4. Height adjustment assembly; 4-1. Fixing frame; 4-2. Fixing plate; 4-3. Screw rod; 4-4. Screw thread; 4-5. Support foot; 5. Anti-slip rubber pad. DETAILED DESCRIPTION

[0028] The following will be combined with the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0029] like Figures 1-4 As shown, this embodiment provides a piston rod for an oil drilling mud pump, comprising

[0030] The rod body 1 is provided with a positioning frame 2;

[0031] The scraping and fixing component 3 is arranged on the positioning frame 2;

[0032] A height adjustment component 4 is provided on the positioning frame 2;

[0033] The scraping fixed assembly 3 comprises a tripod 3-1 arranged on the positioning frame 2, an inner side wall of the tripod 3-1 is provided with a stabilizing frame 3-2, a lower end of the stabilizing frame 3-2 is provided with a penetrating sleeve 3-3, a bottom surface of the penetrating sleeve 3-3 is provided with a scraping sheet 3-4, a top of the tripod 3-1 is provided with a fixed ring 3-5, an upper end surface of the fixed ring 3-5 is provided with a limiting ring 3-6, a bottom surface of the limiting ring 3-6 is provided with a supporting frame 3-7, the supporting frame 3-7 is provided with a driving wheel 3-8, an inner side wall of the driving wheel 3-8 is provided with an arc surface 3-9.

[0034] In the embodiment, the stabilizing frame 3-2 is fixed by the tripod 3-1, the penetrating sleeve 3-3 is used for positioning the rod body 1, the side wall of the rod body 1 can be cleaned in the extension process by the scraping sheet 3-4, the sludge and oil stains are scraped clean, the rod body 1 is positioned by the limiting ring 3-6 on the fixed ring 3-5, the arc surface 3-9 on the driving wheel 3-8 is engaged with the rod body 1, the positioning effect of the rod body 1 is strengthened, and the angle deviation of the rod body 1 is prevented.

[0035] Specifically, a side wall of the penetrating sleeve 3-3 is provided with a drainage groove 3-10, the penetrating sleeve 3-3 has the same inner diameter as the limiting ring 3-6, and the rod body 1 is inserted into the penetrating sleeve 3-3 and the limiting ring 3-6.

[0036] In the embodiment, the drainage groove 3-10 is used for accumulating and discharging the sludge and oil stains.

[0037] Further, the height adjusting assembly 4 comprises a fixed frame 4-1 arranged on an upper end surface of the positioning frame 2, a top of the fixed frame 4-1 is provided with a fixed sheet 4-2, the fixed sheet 4-2 is provided with a screw rod 4-3 inserted and arranged thereon, the screw rod 4-3 is provided with a screw thread 4-4, a bottom of the screw rod 4-3 penetrates through the positioning frame 2, and the bottom of the screw rod 4-3 is provided with a supporting foot sheet 4-5.

[0038] In the embodiment, the fixed sheet 4-2 on the fixed frame 4-1 is used for positioning the screw rod 4-3, the screw bolts on the screw rod 4-3 are respectively threadedly connected with the fixed sheet 4-2 and the positioning frame 2, and the screw rod 4-3 can be lifted when the screw rod 4-3 is rotated, so that the height of the supporting foot sheet 4-5 is adjusted.

[0039] Further, the tripod 3-1 is an inclined frame body, the number of the tripod 3-1 is three, bottoms of the three tripods 3-1 are fixedly connected with the positioning frame 2, a top of the tripod 3-1 is fixedly connected with the fixed ring 3-5, the supporting foot sheet 4-5 is an arc sheet, a bottom of the supporting foot sheet 4-5 is provided with an antiskid rubber pad 5, and the screw rod 4-3 is threadedly connected between the screw thread 4-4 and the positioning frame 2.

[0040] In the embodiment, the anti-skid rubber pad 5 is used to support the anti-skid effect of the 3-7 pieces of support frame, and to strengthen the stability of the positioning frame 2.

[0041] Further, the arc surface 3-9 is matched with the outer contour of the rod body 1, the number of the driving wheels 3-8 is two, the two driving wheels 3-8 are located on the opposite sides of the rod body 1, the positioning frame 2 is in a circular ring structure, the arc contour of the positioning frame 2 is matched with the arc contour of the support foot piece 4-5, the cross section of the scraping piece 3-4 is in a triangular structure, the tip part of the scraping piece 3-4 is arranged downward, the scraping piece 3-4 is attached to the rod body 1, and the rod body 1 is inserted from the limiting ring 3-6 and extends out the scraping piece 3-4.

[0042] When the fixing of the piston rod body 1 is needed, the positioning frame 2 is fixed through the tripod 3-1, and the penetrating sleeve 3-3 is used for positioning the rod body 1, the side wall of the rod body 1 can be cleaned through the scraping piece 3-4 in the extension process, the sludge and oil stains are scraped clean, the rod body 1 is positioned through the limiting ring 3-6 on the fixing ring 3-5, the effect of strengthening the positioning of the rod body 1 is achieved through the engagement of the arc surface 3-9 on the driving wheel 3-8 and the rod body 1, the deviation of the angle of the rod body 1 is prevented, the screwing bolt on the screwing rod 4-3 is respectively screwed with the fixed piece 4-2 and the positioning frame 2 in the threaded connection, and the height of the support foot piece 4-5 can be adjusted by lifting the screwing rod 4-3 when the screwing rod 4-3 is rotated.

[0043] The above is only a preferred embodiment of the utility model, and is not used to limit the utility model, and any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the utility model should be included in the protection scope of the utility model.

Claims

1. A piston rod for an oil drilling mud pump, characterized in that Comprising a rod body (1), a positioning frame (2) is sleeved on the rod body (1); a scraping fixed assembly (3) is arranged on the positioning frame (2); a height adjusting assembly (4) is arranged on the positioning frame (2); the scraping fixed assembly (3) comprises a tripod (3-1) arranged on the positioning frame (2), an inner side wall of the tripod (3-1) is provided with a stable frame (3-2), a lower end of the stable frame (3-2) is provided with a penetrating sleeve (3-3), a bottom surface of the penetrating sleeve (3-3) is provided with a scraping piece (3-4), a top of the tripod (3-1) is provided with a fixed ring (3-5), an upper end surface of the fixed ring (3-5) is provided with a limiting ring (3-6), a bottom surface of the limiting ring (3-6) is provided with a supporting frame (3-7), the supporting frame (3-7) is provided with a driven wheel (3-8), an inner side wall of the driven wheel (3-8) is provided with an arc surface (3-9).

2. A piston rod for a petroleum drilling mud pump according to claim 1, characterized in that a drainage groove (3-10) is formed in a side wall of the penetrating sleeve (3-3), the penetrating sleeve (3-3) has the same inner diameter as the limiting ring (3-6), the rod body (1) is inserted into the penetrating sleeve (3-3) and the limiting ring (3-6).

3. A piston rod for a petroleum drilling mud pump as defined in claim 1, wherein the height adjusting assembly (4) comprises a fixed frame (4-1) arranged on an upper end surface of the positioning frame (2), a top of the fixed frame (4-1) is provided with a fixed piece (4-2), the fixed piece (4-2) is inserted with a screw rod (4-3), the screw rod (4-3) is provided with a screw thread (4-4), the bottom of the screw rod (4-3) penetrates through the positioning frame (2), and the bottom of the screw rod (4-3) is provided with a supporting foot piece (4-5).

4. The piston rod for oil drilling mud pumps according to claim 1, characterized in that the tripod (3-1) is an inclined frame body, the number of the tripod (3-1) is three, the bottom of the three tripods (3-1) is fixedly connected with the positioning frame (2), and the top of the tripod (3-1) is fixedly connected with the fixed ring (3-5).

5. A piston rod for use in a petroleum drilling mud pump according to claim 3, wherein the supporting foot piece (4-5) is an arc-shaped piece, and the bottom of the supporting foot piece (4-5) is provided with an antiskid rubber pad (5).

6. A piston rod for use in a petroleum drilling mud pump according to claim 3, wherein the screw rod (4-3) is threadedly connected between the screw thread (4-4) and the positioning frame (2).

7. A piston rod for use in a petroleum drilling mud pump according to claim 1, wherein the arc surface (3-9) is matched with the outer contour of the rod body (1), the number of the driven wheel (3-8) is two, and the two driven wheels (3-8) are located on opposite sides of the rod body (1).

8. A piston rod for use in a petroleum drilling mud pump according to claim 5, wherein the positioning frame (2) has a circular ring structure, and the arc contour of the positioning frame (2) is matched with the arc contour of the supporting foot piece (4-5).

9. The piston rod for a petroleum drilling mud pump of claim 1 wherein, the scraping piece (3-4) has a triangular cross section, a tip portion of the scraping piece (3-4) is arranged downward, and the scraping piece (3-4) is attached to the rod body (1).

10. The piston rod for a petroleum drilling mud pump of claim 1 wherein, the rod body (1) extends out of the scraping piece (3-4) after being inserted into the limiting ring (3-6).

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