Tool for taking sliding bearing from gear pump shell

Abstract

The utility model discloses a gear pump shell sliding bearing taking tool which comprises a pump shell, the inner bottom of the pump shell is symmetrically connected with sliding bearings in an interference fit mode, threaded sleeves are screwed into the sliding bearings and meshed with the inner walls of the sliding bearings, the end faces of guide rods penetrate through the interiors of the threaded sleeves, and the end faces of the guide rods penetrate through the sliding bearings. And the outer wall of the guide rod is in threaded connection with the inner wall of the threaded sleeve, meanwhile, the end face of the guide rod extends into the sliding bearing, and bearing seat holes are symmetrically formed in the inner bottom of the pump shell. According to the utility model, the threaded handle and the threaded sleeve matched with the threaded handle are arranged, so that the top of the threaded handle screwed into the threaded sleeve is in contact with the bottom surface of the bearing seat hole of the shell and then is continuously screwed into the threaded handle downwards, and at the moment, the threaded sleeve which is in external threaded connection forms upward counter-acting force on the sliding bearing which is engaged and fixed with the threaded sleeve; and therefore, the completeness of the sliding bearing is ensured, and the efficiency of taking out the sliding bearing is also improved.

Description

Technical Field

[0001] The utility model relates to the technical field of gear pump application, in particular to a tooling for taking a gear pump housing and a sliding bearing. Background Art

[0002] A gear pump is a rotary pump widely used in mechanical engineering, particularly in hydraulic transmission systems. Its structural simplicity and diverse functionality allow it to be used in many different industrial environments. Gear pumps operate by meshing gears. As the gears rotate, a vacuum is created on the suction side, drawing liquid in. As the gears continue to rotate, the liquid is carried to the discharge side and squeezed out. The design and configuration of the gears ensure this process is continuous, resulting in a continuous output flow.

[0003] Since the machining size of the sliding bearing seat hole of the housing is too small, the sliding bearing has an interference fit with it, and cannot be removed after being pressed in, resulting in a large scrap loss. The traditional method is to use milling to remove the sliding bearing, which increases the economic cost during the use of milling equipment. Therefore, the utility model proposes a tooling for removing the sliding bearing of the gear pump housing. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide a tool for removing the sliding bearing of a gear pump housing. By arranging a threaded handle and a threaded sleeve cooperating therewith, the top of the threaded handle screwed into the threaded sleeve contacts the bottom surface of the housing bearing seat hole and then the threaded handle is further screwed downward. At this time, the threaded sleeve connected with the external thread forms an upward reaction force on the sliding bearing after it is engaged and fixed, thereby quickly removing the sliding bearing, which not only ensures the integrity of the sliding bearing but also improves the efficiency of removing the sliding bearing.

[0005] In order to solve the above technical problems, a technical solution adopted by the present invention is: to provide a tool for removing the sliding bearing from the gear pump housing, including a threaded sleeve and a guide rod, and a pump housing to be operated, the inner bottom of the pump housing is symmetrically interference-connected with the sliding bearing, the threaded sleeve is screwed into the interior of the sliding bearing and is engaged with the inner wall, the end face of the guide rod passes through the interior of the threaded sleeve, and the outer wall of the guide rod is threadedly connected to the inner wall of the threaded sleeve, and the end face of the guide rod extends to the interior of the sliding bearing.

[0006] The utility model is further configured as follows: the inner bottom of the pump housing is symmetrically provided with bearing seat holes, the outer walls of the two sliding bearings are respectively interference connected with the inner walls of the two bearing seat holes, and the tops of the two sliding bearings are respectively flush with the tops of the two bearing seat holes.

[0007] Through the above technical solution, the sliding bearing can be stably installed inside the bearing seat hole, so that the gear installed inside the pump casing can rotate stably to prevent slipping.

[0008] The utility model is further configured as follows: an inner wall of the threaded sleeve is provided with an internal thread near the bottom, and the internal thread is threadedly connected to a driving thread provided on the outer wall of the guide rod near the end surface.

[0009] Through the above technical solution, when the guide rod is continuously rotated, it can move toward the bottom of the bearing seat hole on the inner wall of the threaded sleeve by driving the thread, so that the end face of the guide rod continues to rotate after contacting the bearing seat hole. Since the guide rod is limited at this time, the threaded sleeve moves on the guide rod under the action of the internal thread, thereby driving the external sliding bearing to fall off the bearing seat hole.

[0010] The utility model is further configured as follows: limiting portions are extended on either symmetrical sides of the top of the threaded sleeve, and are tightly pressed against the top of the pump housing.

[0011] Through the above technical solution, when the threaded sleeve is connected to the sliding bearing at the bottom, it can be stably pressed on the pump casing, which is convenient for stability during operation and prevents sliding from damaging the inner wall of the sliding bearing.

[0012] The utility model is further configured as follows: a hand lever is fixedly connected to the top of the guide rod, and the hand lever is configured in a straight line.

[0013] Through the above technical solution, the hand lever and the guide rod fixedly connected in the middle thereof can be formed into a T-shaped handle, thereby facilitating downward rotation during use.

[0014] The utility model is further configured as follows: an outer wall of the threaded sleeve is provided with an external thread near the bottom, and the external thread is engaged with the inner wall of the sliding bearing.

[0015] The above technical solution facilitates the stably engaged fixation of the threaded sleeve and the sliding bearing to be removed, so that the sliding bearing can be removed through the threaded sleeve in subsequent operations.

[0016] The beneficial effects of the utility model are as follows:

[0017] The utility model provides a tool for removing a sliding bearing from a gear pump housing by providing a threaded handle and a threaded sleeve that cooperates therewith, so that the top of the threaded handle screwed into the threaded sleeve contacts the bottom surface of the housing bearing seat hole and then the threaded handle is further screwed downward. At this time, the threaded sleeve connected with the external thread forms an upward reaction force on the sliding bearing that is engaged and fixed thereto, thereby quickly removing the sliding bearing, which not only ensures the integrity of the sliding bearing but also improves the efficiency of removing the sliding bearing. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a cross-sectional view of a tooling for removing a sliding bearing from a gear pump housing according to the present invention;

[0019] Figure 2 This is a front view of a tooling for removing a sliding bearing from a gear pump housing according to the present invention;

[0020] Figure 3 The utility model is a top view of a tooling for removing a sliding bearing from a gear pump housing.

[0021] In the figure: 100, pump housing; 101, bearing seat hole; 200, sliding bearing; 300, threaded sleeve; 301, internal thread; 302, external thread; 400, guide rod; 401, drive thread; 402, hand lever. DETAILED DESCRIPTION

[0022] The preferred embodiments of the present invention are described in detail below in conjunction with the accompanying drawings so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more precise definition of the protection scope of the present invention.

[0023] like Figure 1-Figure 3As shown, a tool for taking a sliding bearing from a gear pump housing includes a threaded sleeve 300 and a guide rod 400, as well as a pump housing 100 to be operated. The inner bottom of the pump housing 100 is symmetrically provided with a bearing seat hole 101. The outer walls of the two sliding bearings 200 are respectively interference-connected with the inner walls of the two bearing seat holes 101, and the tops of the two sliding bearings 200 are respectively flush with the tops of the two bearing seat holes 101, so that the sliding bearings 200 can be stably installed in the interior of the bearing seat holes 101, so that the gears installed inside the pump housing 100 can rotate stably to prevent slipping. The inner bottom of the pump housing 100 is symmetrically interference-connected with sliding bearings. The bearing 200, the threaded sleeve 300 is screwed into the interior of the sliding bearing 200 and is engaged with the inner wall. The outer wall of the threaded sleeve 300 is provided with an external thread 302 near the bottom, and the external thread 302 is engaged with the inner wall of the sliding bearing 200, which facilitates the threaded sleeve 300 and the sliding bearing 200 to be removed to be stably engaged and fixed, so that the sliding bearing 200 can be removed through the threaded sleeve 300 in subsequent operations. The top of the threaded sleeve 300 has a limited portion extending on both sides symmetrically, and is tightly pressed against the top of the pump housing 100, which is convenient for the threaded sleeve 300 and the sliding bearing 200 at the bottom. 0, it can be stably pressed on the pump housing 100, which is convenient for stability during operation and prevents sliding from damaging the inner wall of the sliding bearing 200. The end face of the guide rod 400 passes through the interior of the threaded sleeve 300, and the outer wall of the guide rod 400 is threadedly connected to the inner wall of the threaded sleeve 300. The inner wall of the threaded sleeve 300 is provided with an internal thread 301 near the bottom, and the inner thread 301 is threadedly connected to the driving thread 401 provided on the outer wall of the guide rod 400 near the end face, so that when the guide rod 400 is continuously rotated, it can be driven on the inner wall of the threaded sleeve 300 to the bearing seat hole 10 1, so that the end surface of the guide rod 400 continues to rotate after contacting the bearing seat hole 101. Since the guide rod 400 is limited at this time, the threaded sleeve 300 moves on the guide rod 400 under the action of the internal thread 301, thereby driving the external sliding bearing 200 to fall off the bearing seat hole 101. At the same time, the end surface of the guide rod 400 extends to the inside of the sliding bearing 200. The top of the guide rod 400 is fixedly connected to a hand rod 402, and the hand rod 402 is arranged in a straight line, so that the hand rod 402 and the guide rod 400 fixedly connected in the middle thereof form a T-shaped handle, thereby facilitating downward rotation when in use.

[0024] When the present invention is in use, the threaded sleeve 300 is first screwed into the sliding bearing 200 so that the two are tightly engaged together. Then, the guide rod 400 is screwed into the interior of the threaded sleeve 300 under the action of the hand lever 402 and is threadedly connected thereto. When the end face of the guide rod 400 contacts the bottom surface of the bearing seat hole 101, the guide rod 400 is continued to be screwed downward. At this time, the guide rod 400 is limited, so that the threaded sleeve 300 moves on the guide rod 400 under the reaction force, thereby driving the externally engaged sliding bearing 200 to gradually fall off the bearing seat hole 101 until the sliding bearing 200 falls off the bearing seat hole 101.

[0025] The above description is merely an embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the description and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A tool for removing a sliding bearing from a gear pump housing, comprising a threaded sleeve (300) and a guide rod (400), and a pump housing (100) to be operated, characterized in that: The inner bottom of the pump housing (100) is symmetrically interference-connected with a sliding bearing (200), the threaded sleeve (300) is screwed into the interior of the sliding bearing (200) and is engaged with the inner wall thereof, the end face of the guide rod (400) passes through the interior of the threaded sleeve (300), and the outer wall of the guide rod (400) is threadedly connected to the inner wall of the threaded sleeve (300), and the end face of the guide rod (400) extends to the interior of the sliding bearing (200).

2. The tooling for removing the sliding bearing from the gear pump housing according to claim 1, characterized in that: The inner bottom of the pump housing (100) is symmetrically provided with bearing seat holes (101), the outer walls of the two sliding bearings (200) are respectively connected with the inner walls of the two bearing seat holes (101) in an interference fit, and the tops of the two sliding bearings (200) are respectively flush with the tops of the two bearing seat holes (101).

3. The tooling for removing the sliding bearing from the gear pump housing according to claim 1, characterized in that: An internal thread (301) is provided on the inner wall of the threaded sleeve (300) near the bottom, and is threadedly connected to a driving thread (401) provided on the outer wall of the guide rod (400) near the end surface via the internal thread (301).

4. The tooling for removing the sliding bearing from the gear pump housing according to claim 3, characterized in that: Limiting portions extend from any two symmetrical sides of the top of the threaded sleeve (300), and are tightly pressed against the top of the pump housing (100).

5. The tooling for removing the sliding bearing from the gear pump housing according to claim 3, characterized in that: The top of the guide rod (400) is fixedly connected to a hand rod (402), and the hand rod (402) is arranged in a straight line.

6. The tooling for removing the sliding bearing from the gear pump housing according to claim 3, characterized in that: An external thread (302) is provided on the outer wall of the threaded sleeve (300) near the bottom, and the external thread (302) is engaged with the inner wall of the sliding bearing (200).

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