Auxiliary assembly for installing mud pump valve seat

Abstract

The utility model discloses an auxiliary assembly for installing a mud pump valve seat, which comprises a mud pump body and an auxiliary positioning mechanism arranged at the bottom of the mud pump body, the bottom of the mud pump body is fixedly connected with the valve seat, and at least six first positioning holes with the same specification are formed in the valve seat in a circumferential array mode. A second positioning hole is formed in the center of the inner wall of the valve seat. The auxiliary positioning mechanism comprises a supporting shell arranged at the bottom of the valve seat. The equipment has the advantages of efficient clamping and flexible adjustment, synchronous rotation of all horizontal threaded rods is achieved through combination of a bevel gear ring and a driven bevel gear, it is ensured that six positioning pressing plates can synchronously move inwards, and uniform clamping force is provided; the combination of the vertical threaded rod and the vertical threaded sleeve provides accurate height adjustment, ensures that the center position of the valve seat is accurately positioned, and improves the overall installation accuracy.

Description

TECHNICAL FIELD

[0001] The utility model relates to mud pump valve seat installation technical field, concretely is a kind of auxiliary assembly for mud pump valve seat installation. BACKGROUND

[0002] Auxiliary assembly for mud pump valve seat installation generally refers to a series of tools or devices for helping to correctly install, adjust and fix mud pump valve seat, positioning clamping piece is one of common auxiliary assembly in mud pump valve seat installation, it is mainly used to ensure that valve seat can be accurately positioned and stably fixed during installation process.

[0003] The existing valve seat positioning clamping piece is generally specifically designed according to the specification of valve seat, which causes that valve seat positioning clamping piece is inconvenient to adjust, when facing valve seat of different sizes or types, corresponding clamping piece must be replaced, work efficiency is reduced, and the application range of auxiliary assembly is greatly limited. UTILITY MODEL CONTENTS

[0004] The utility model discloses a kind of auxiliary assembly for mud pump valve seat installation, with the advantages of efficient clamping, flexible adjustment, the synchronous rotation of all horizontal threaded rods is realized by the combination of bevel gear ring and driven bevel gear, ensure that six positioning pressing plates can be moved inwards synchronously, provide uniform clamping force;The combination of vertical threaded rod and vertical threaded sleeve provides accurate height adjustment, ensure that the center position of valve seat is accurately positioned, improve overall installation precision.

[0005] To achieve the above object, the utility model provides the following technical scheme: an auxiliary assembly for mud pump valve seat installation, including mud pump body and the auxiliary positioning mechanism being set at its bottom, the mud pump body bottom is fixedly connected with valve seat, at least six first positioning holes of same specification are arranged in the form of circular array on the valve seat, a second positioning hole is arranged in the center of the inner wall of the valve seat:

[0006] The auxiliary positioning mechanism includes a support shell arranged at the bottom of the valve seat, at least six guide grooves and third positioning holes are arranged in the form of circular array on the top of the support shell, the six third positioning holes are adapted to the six first positioning holes, the third positioning holes are located inside the guide grooves, the moving path of the six guide grooves is from the circumferential surface of the support shell to the center thereof, at least six No. L-shaped connecting rods are arranged in the form of circular array on the top of the support shell, the proximal ends of the six No. L-shaped connecting rods are fixedly connected with positioning pressing plates, and the inner wall top of the six positioning pressing plates is slidably connected with the top of the valve seat.

[0007] Preferably, the six positioning pressing plates are threadedly connected with positioning bolts on the inner wall of the center of the supporting shell, and the positioning bolts are threadedly connected between the first positioning hole and the third positioning hole.

[0008] Preferably, the six positioning pressing plates are threadedly connected with positioning bolts on the inner wall of the center of the supporting shell, and the positioning bolts are threadedly connected between the first positioning hole and the third positioning hole.

[0009] Preferably, the six positioning pressing plates are threadedly connected with positioning bolts on the inner wall of the center of the supporting shell, and the positioning bolts are threadedly connected between the first positioning hole and the third positioning hole.

[0010] Preferably, the six positioning pressing plates are threadedly connected with positioning bolts on the inner wall of the center of the supporting shell, and the positioning bolts are threadedly connected between the first positioning hole and the third positioning hole.

[0011] Preferably, the six positioning pressing plates are threadedly connected with positioning bolts on the inner wall of the center of the supporting shell, and the positioning bolts are threadedly connected between the first positioning hole and the third positioning hole.

[0012] Preferably, the six positioning pressing plates are threadedly connected with positioning bolts on the inner wall of the center of the supporting shell, and the positioning bolts are threadedly connected between the first positioning hole and the third positioning hole.

[0013] The utility model discloses a mud pump valve seat installation is with the auxiliary assembly of preferred, the top meshing of bevel gear ring is connected with power bevel gear, power bevel gear inner wall is fixedly connected with the rotation rod, the rotation rod is away from power bevel gear one end and extends to the outside front side of support shell and is rotationally connected with it, the rotation rod front end is fixedly connected with the fastening knob.

[0014] Compared with the prior art, the utility model has the advantages of the following:

[0015] 1, the utility model discloses a valve seat is placed at the top of support shell, makes first locating hole and third locating hole alignment, realizes the primary positioning. By manual rotation fastening knob, drive rotation rod and power bevel gear rotation, and then drive bevel gear ring synchronous rotation, the rotation of bevel gear ring makes the vertical screw rod rotate, drive vertical screw sleeve moves up and down, until vertical screw sleeve extends to the inner wall of second locating hole and is closely attached with its inner wall, and this step ensures that the center position of valve seat is accurately adjusted. The rotation of power bevel gear drives all driven bevel gears synchronous rotation through bevel gear ring, and then drive six horizontal screw rods rotate, and the rotation of horizontal screw rod makes horizontal screw block move outward along its axial direction, and the inner movement of positioning pressing plate at the end of no. One L type connecting rod is pushed, gradually contacts the top of valve seat, continues to rotate fastening knob, until positioning pressing plate completely adheres the top of valve seat, and enough pressure is applied to fix valve seat, and at this time, valve seat has been positioned on support shell preliminarily stably.

[0016] 2, the utility model discloses when positioning pressing plate is pushed inward, the moving block moves inward along the moving groove under the action of spring, and simultaneously drives no. Two L type connecting rod and arc plate move downward, and the arc plate adheres the circumferential surface of valve seat, provides additional lateral clamping force, and further enhances the stability of valve seat. Finally, using spanner or other appropriate tools rotates the positioning bolt, makes it pass through first locating hole and third locating hole, firmly locks valve seat on support shell, ensures that every positioning bolt is uniformly tightened, avoids the deformation or damage of valve seat due to uneven stress. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is three-dimensional drawing of the utility model;

[0018] Figure 2 It is side view of the utility model;

[0019] Figure 3 It is structure schematic view of the utility model;

[0020] Figure 4 It is structure schematic view of mud pump body of the utility model;

[0021] Figure 5 It is structure schematic view of auxiliary positioning mechanism of the utility model;

[0022] Figure 6 The utility model discloses a structure diagram of positioning pressboard.

[0023] In the figure: 100, mud pump body; 101, valve seat; 102, first positioning hole; 103, second positioning hole; 200, auxiliary positioning mechanism; 201, support shell; 202, guide groove; 203, third positioning hole; 204, no. L type connecting rod; 205, positioning pressboard; 2050, moving groove; 2051, sliding slot; 2052, moving block; 2053, spring; 2054, no. 2 L type connecting rod; 206, positioning bolt; 207, horizontal threaded block; 208, horizontal threaded rod; 209, horizontal limiting rod; 210, driven bevel gear; 211, bevel gear ring; 212, vertical threaded rod; 213, vertical threaded sleeve; 214, vertical limiting rod; 215, power bevel gear; 216, fastening knob; 217, arc plate. DETAILED DESCRIPTION

[0024] Please refer to Figures 1-6 A kind of auxiliary assembly for mud pump valve seat installation, including mud pump body 100 and the auxiliary positioning mechanism 200 of setting at its bottom, mud pump body 100 bottom is fixedly connected with valve seat 101, at least six first positioning holes 102 of same specification are set in the circumferential array on valve seat 101 inner wall center, second positioning hole 103 is set in valve seat 101 inner wall center:

[0025] Further, auxiliary positioning mechanism 200 includes support shell 201 set in the bottom of valve seat 101, at least six guide grooves 202 and third positioning holes 203 are set in the circumferential array on the top of support shell 201, six third positioning holes 203 and six first positioning holes 102 are mutually adapted, third positioning hole 203 is located inside guide groove 202, the moving path of six guide grooves 202 is by the circumferential surface of support shell 201 to its center of circle, at least six no. L type connecting rod 204 are set in the circumferential array on the top of support shell 201, six no. L type connecting rod 204 are fixedly connected with positioning pressboard 205 at the end of mutual approach, and the top of the inner wall of six positioning pressboards 205 is slidably connected with the top of valve seat 101.

[0026] Valve seat 101 is installed at the bottom of mud pump body 100, as the key component of connecting mud pump and pipeline or other equipment, it is equipped with second positioning hole 103 inside, for cooperating with external positioning tool or element. First positioning hole 102 is distributed on valve seat 101, is arranged in the circumferential array, for being aligned with third positioning hole 203 on auxiliary positioning mechanism 200, ensure that valve seat 101 can be accurately positioned and fixed.

[0027] Further, six positioning pressing plates 205 are threadedly connected with positioning bolts 206 near the inner wall of the support shell 201. The positioning bolts 206 are threadedly connected between the first positioning hole 102 and the third positioning hole 203.

[0028] The positioning bolts 206 provide additional fixing force through the threaded connection between the first positioning hole 102 and the third positioning hole 203, ensuring that the valve seat 101 remains absolutely stable during installation. At the same time, it also plays the role of final locking, preventing any possible displacement or loosening.

[0029] Further, six positioning pressing plates 205 are threadedly connected with positioning bolts 206 near the inner wall of the support shell 201. The positioning bolts 206 are threadedly connected between the first positioning hole 102 and the third positioning hole 203.

[0030] The movement slot 2050 is located inside the positioning pressing plate 205 in the horizontal direction, providing a sliding path for the movement block 2052 to move in the horizontal direction. The sliding slot 2051 is opened on one side of the bottom of the positioning pressing plate 205, which cooperates with the lower extension part of the No. 2 L-shaped connecting rod 2054 to ensure that the No. 2 L-shaped connecting rod 2054 can slide along the predetermined path and maintain the stability of the system. The movement block 2052 is slidably connected inside the movement slot 2050 and can move freely in the horizontal direction in response to the elastic force of the spring 2053. The spring 2053 provides elastic restoring force, so that the movement block 2052 can maintain the initial position when there is no external force, and produce appropriate displacement under the action of external force.

[0031] Further, six movement blocks 2052 are fixedly connected with No. 2 L-shaped connecting rods 2054 at the bottom, and the lower extensions of two No. 2 L-shaped connecting rods 2054 extend to the outside below the positioning pressing plate 205 and are slidably connected with the inner wall of the sliding slot 2051. The bottom of each of the six No. 2 L-shaped connecting rods 2054 is fixedly connected with an arc-shaped plate 217, and the inner wall of each of the six arc-shaped plates 217 is slidably connected with the circumferential surface of the valve seat 101.

[0032] The No. 2 L-shaped connecting rod 2054 converts the horizontal movement of the movement block 2052 into vertical movement, thereby driving the arc-shaped plate 217 to adhere to or leave the circumferential surface of the valve seat 101. The design of the arc-shaped plate 217 allows it to closely adhere to the circumferential surface of the valve seat 101, providing uniform clamping force and ensuring that the valve seat 101 remains stable during the entire installation process.

[0033] Further, the vertical threaded rod 212 is rotatably connected inside the support shell 201, the vertical threaded sleeve 213 is threadedly connected to the upper surface of the vertical threaded rod 212, the vertical threaded sleeve 213 extends above the support shell 201 and is slidably connected thereto, the vertical threaded sleeve 213 extends into the inner wall of the second positioning hole 103 and is in close contact with the inner wall thereof, the vertical limiting rod 214 is slidably connected to one side of the vertical threaded sleeve 213 inside the support shell 201.

[0034] The vertical threaded rod 212 can drive the vertical threaded sleeve 213 to move up and down by rotating, which mainly provides an accurate height adjustment mechanism to ensure that the valve seat 101 can be accurately positioned at the required position. The vertical threaded sleeve 213 also extends to the inner wall of the second positioning hole 103 and is in close contact with the inner wall thereof, providing central positioning and vertical fixing force, and the vertical limiting rod 214 is slidably connected with the vertical threaded sleeve 213 to ensure that the vertical threaded sleeve 213 maintains straight line motion when moving up and down, avoiding deviation or rotation.

[0035] Further, the bevel gear ring 211 is fixedly sleeved on the lower surface of the vertical threaded rod 212, the top of the bevel gear ring 211 is circumferentially arrayed and meshingly connected with at least six driven bevel gears 210, the six driven bevel gears 210 are circumferentially arrayed inside the support shell 201, and the inner wall of each driven bevel gear 210 is fixedly connected with a horizontal threaded rod 208. The six horizontal threaded rods 208 are circumferentially arrayed and rotatably arranged inside the support shell 201.

[0036] When the vertical threaded rod 212 rotates, the bevel gear ring 211 also rotates to drive all the driven bevel gears 210 to rotate synchronously, and the inner wall of each driven bevel gear 210 is fixedly connected with a horizontal threaded rod 208 for converting the rotational motion of the bevel gear ring 211 into the rotational motion of the horizontal threaded rod 208. When the horizontal threaded rod 208 rotates, it drives the horizontal threaded block 207 to move along its axial direction, thereby driving the one L-shaped connecting rod 204 and the positioning pressing plate 205 at the end thereof to move radially.

[0037] Further, the six horizontal threaded rods 208 are threadedly connected with horizontal threaded blocks 207, the top of the six horizontal threaded blocks 207 is fixedly connected with a one L-shaped connecting rod 204, the inner wall of the six horizontal threaded blocks 207 is slidably connected with horizontal limiting rods 209, and the six horizontal limiting rods 209 are circumferentially arrayed and fixedly arranged above the inside of the support shell 201.

[0038] The horizontal threaded block 207 moves axially under the drive of the horizontal threaded rod 208 to achieve radial clamping or release of the valve seat 101. The horizontal limit rod 209 ensures that the horizontal threaded block 207 maintains linear motion during movement, avoids offset or rotation, and ensures the stability of the system.

[0039] Furthermore, a power bevel gear 215 is meshed with the top of the bevel ring 211, and a rotating rod is fixedly connected to the inner wall of the power bevel gear 215. The end of the rotating rod away from the power bevel gear 215 extends to the front side of the support shell 201 and is rotatably connected to it. A fastening knob 216 is fixedly connected to the front end of the rotating rod.

[0040] When the rotating rod rotates, the power bevel gear 215 rotates accordingly, driving the bevel gear ring 211 to rotate synchronously. By manually rotating the fastening knob 216, the rotating rod and the power bevel gear 215 can be easily driven, realizing the control of the entire system.

[0041] By placing the valve seat 101 on top of the support housing 201, the first positioning hole 102 is aligned with the third positioning hole 203, achieving initial positioning. By manually rotating the fastening knob 216, the driving rod and the power bevel gear 215 are rotated, which in turn drives the bevel ring 211 to rotate synchronously. The rotation of the bevel ring 211 causes the vertical threaded rod 212 to rotate, driving the vertical threaded sleeve 213 to move up and down until the vertical threaded sleeve 213 extends to the inner wall of the second positioning hole 103 and fits tightly against its inner wall. This step ensures that the center position of the valve seat 101 is accurately adjusted. The rotation of the power bevel gear 215 drives all driven bevel gears 210 to rotate synchronously through the bevel ring 211, which in turn drives the six horizontal threaded rods 208 to rotate. The rotation of the horizontal threaded rods 208 causes the horizontal threaded block 207 to move outward along the axial direction, pushing the first L-shaped connecting rod 204 and its end positioning plate 205 to move inward, gradually contacting the top of the valve seat 101. Continue to rotate the fastening knob 216 until the positioning plate 205 is completely in contact with the top of the valve seat 101 and applies sufficient pressure to fix the valve seat 101. At this time, the valve seat 101 has been initially and stably positioned on the support shell 201.

[0042] When the positioning plate 205 is subjected to an inward pushing force, the moving block 2052 moves inward along the moving groove 2050 under the action of the spring 2053. At the same time, it drives the second L-shaped connecting rod 2054 and the arc plate 217 to move downward. The arc plate 217 fits against the circumferential surface of the valve seat 101, providing additional lateral clamping force and further enhancing the stability of the valve seat 101. Finally, use a wrench or other appropriate tool to rotate the positioning bolt 206 so that it passes through the first positioning hole 102 and the third positioning hole 203, and firmly lock the valve seat 101 onto the support shell 201. Ensure that each positioning bolt 206 is tightened evenly to avoid deformation or damage to the valve seat 101 due to uneven force.

[0043] The device realizes the synchronous rotation of all horizontal threaded rods 208 through the combination of the bevel gear ring 211 and the driven bevel gear 210, ensures that the six positioning clamping plates 205 can move inward synchronously, and provides uniform clamping force. The combination of the vertical threaded rod 212 and the vertical threaded sleeve 213 provides precise height adjustment, ensures that the center position of the valve seat 101 is accurately positioned, and improves the overall installation precision. The vertical threaded sleeve 213 extends to the inner wall of the second positioning hole 103 and closely fits with the inner wall, providing stable vertical fixing force and enhancing the stability of the valve seat 101.

[0044] The above is only a preferred embodiment of the present application, and is not intended to limit the present application. Any modification, equivalent replacement and improvement made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. An auxiliary assembly for mud pump valve seat installation, comprising a mud pump body (100) and an auxiliary positioning mechanism (200) arranged at the bottom of the mud pump body (100), wherein the bottom of the mud pump body (100) is fixedly connected with a valve seat (101), the valve seat (101) is provided with at least six first positioning holes (102) of the same specification in a circumferential array, and a second positioning hole (103) is arranged at the center of the inner wall of the valve seat (101), characterized in that: the auxiliary positioning mechanism (200) comprises a support shell (201) arranged at the bottom of the valve seat (101), the top of the support shell (201) is provided with at least six guide grooves (202) and third positioning holes (203) in a circumferential array, the six third positioning holes (203) are matched with the six first positioning holes (102), the third positioning holes (203) are located inside the guide grooves (202), the moving path of the six guide grooves (202) is from the circumferential surface of the support shell (201) to the center thereof, the top of the support shell (201) is provided with at least six first L-shaped connecting rods (204) in a circumferential array, the mutually close ends of the six first L-shaped connecting rods (204) are fixedly connected with positioning pressure plates (205), and the inner wall top of the six positioning pressure plates (205) is slidably connected with the top of the valve seat (101). The inner wall of the support shell (201) is threadedly connected with positioning bolts (206) close to the center thereof, and the surface of the positioning bolts (206) is threadedly connected with the first positioning holes (102) and the third positioning holes (203).

2. An auxiliary assembly for installing a valve seat in a slurry pump as claimed in claim 1, characterized in that: The inner part of each of the six positioning pressure plates (205) is provided with a moving groove (2050) in the horizontal direction, the bottom of each of the six positioning pressure plates (205) is provided with a sliding groove (2051), the moving groove (2050) is slidably connected with a moving block (2052), the moving groove (2050) is provided with a spring (2053), one end of the spring (2053) is fixedly connected with the inner wall of the moving groove (2050), and the other end of the spring (2053) is fixedly connected with the moving block (2052).

3. An auxiliary assembly for installing a valve seat in a mud pump as defined in claim 2, wherein: The bottom of each of the six moving blocks (2052) is fixedly connected with a second L-shaped connecting rod (2054), the lower part of each of the two second L-shaped connecting rods (2054) extends to the lower part outside the positioning pressure plate (205) and is slidably connected with the inner wall of the sliding groove (2051), the bottom of each of the six second L-shaped connecting rods (2054) is fixedly connected with an arc-shaped plate (217), and the inner wall of each of the six arc-shaped plates (217) is slidably connected with the circumferential surface of the valve seat (101).

4. An auxiliary assembly for installing a valve seat in a slurry pump as claimed in claim 3, characterized in that: ​ 5. An auxiliary assembly for installing a valve seat in a mud pump as defined in claim 1, wherein: The support shell (201) is internally and centrally rotationally connected with a vertical threaded rod (212), the upper surface of the vertical threaded rod (212) is threadedly connected with a vertical threaded sleeve (213), the vertical threaded sleeve (213) extends above the top of the support shell (201) and is slidably connected therewith, the vertical threaded sleeve (213) extends above the inner wall of the second positioning hole (103) and is in close contact with the inner wall thereof, the vertical threaded sleeve (213) is slidably connected with a vertical limiting rod (214) on one side of the inside of the support shell (201), and the top and bottom of the vertical limiting rod (214) are fixedly connected with the top and bottom of the inner wall of the support shell (201), respectively.

6. An auxiliary assembly for installing a valve seat in a slurry pump as claimed in claim 5, characterized in that: The surface of the vertical threaded rod (212) is fixedly sleeved with a bevel gear ring (211), the top of the bevel gear ring (211) is circumferentially arrayed and meshingly connected with at least six driven bevel gears (210), and the six driven bevel gears (210) are circumferentially arrayed in the inside of the support shell (201). The inner wall of each of the six driven bevel gears (210) is fixedly connected with a horizontal threaded rod (208), and the six horizontal threaded rods (208) are circumferentially arrayed and rotationally arranged in the inside of the support shell (201).

7. An auxiliary assembly for installing a valve seat in a mud pump as defined in claim 6, wherein: The surface of each of the six horizontal threaded rods (208) is threadedly connected with a horizontal threaded block (207), the top of each of the six horizontal threaded blocks (207) is fixedly connected with a No. 1 L-shaped connecting rod (204), the inner wall of each of the six horizontal threaded blocks (207) is slidably connected with a horizontal limiting rod (209), and the six horizontal limiting rods (209) are circumferentially arrayed and fixedly arranged above the inside of the support shell (201).

8. An auxiliary assembly for installing a valve seat in a mud pump as defined in claim 6, wherein: The top of the bevel gear ring (211) is meshingly connected with a power bevel gear (215), the inner wall of the power bevel gear (215) is fixedly connected with a rotating rod, one end of the rotating rod away from the power bevel gear (215) extends to the front side of the outside of the support shell (201) and is rotationally connected therewith, and the front end of the rotating rod is fixedly connected with a fastening knob (216).

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