Grease application device for screw pump housing

Abstract

The utility model relates to a kind of screw pump pump shell lubricating grease smearing device, including seat plate, the limiting structure of pump shell is provided on the seat plate, one end of seat plate is fixed with mounting seat, mounting seat is transversely provided with screw rod, the nut seat fixed with mounting seat is threadedly connected on screw rod, the end of screw rod located seat plate upside is equipped with brush, and the other end of screw rod is provided with crank handle. The device is convenient for smearing lubricating grease into the pump shell of screw pump, and it is easy to operate.

Description

Technical Field

[0001] This utility model relates to a grease application device for a screw pump housing. Background Technology

[0002] A screw pump, also known as a "screw pump" or "Archimedes screw pump," consists of a shaft, helical blades, and a casing. It is a type of pump that uses the rotation of the helical blades to propel water upwards in a spiral motion along the axial direction. When installing a screw pump after disassembly and maintenance, the shaft of the helical blades needs to be inserted into the tubular pump casing. To reduce the resistance of the shaft with helical blades inside the casing and improve lubrication, a layer of grease is usually applied to the inner wall of the casing. However, since the tubular pump casing of a screw pump is typically 1.5m to 2m long, applying grease inside the casing is very difficult. Therefore, a tool is needed for applying grease to the screw pump casing. Utility Model Content

[0003] The purpose of this invention is to provide a screw pump housing grease application device, which is convenient for applying grease to the inside of the screw pump housing and is easy to operate.

[0004] The technical solution of this utility model is as follows: a screw pump housing grease application device, including a base plate, a pump housing limiting structure provided on the base plate, a mounting seat fixed at one end of the base plate, a lead screw arranged laterally on the mounting seat, a nut seat fixed to the mounting seat threaded on the lead screw, a brush installed at the end of the lead screw located on the upper side of the base plate, and a crank handle provided at the other end of the lead screw.

[0005] Furthermore, the limiting structure includes limiting blocks disposed on the front and rear sides of both ends of the seat plate, and the inner side of the limiting block is provided with an arc-shaped surface or inclined surface that abuts against the outer side of the pump casing.

[0006] Furthermore, a pin is fixed to the lower end of the limiting block, and multiple pin holes for pin engagement are arranged longitudinally at intervals in the area where the limiting block is installed on the base plate.

[0007] Furthermore, an anti-slip rubber layer is provided on the arc-shaped surface or inclined surface of the limiting block.

[0008] Furthermore, the mounting base includes a base fixed to the base plate, and an adjusting seat for mounting a nut seat is provided on the upper side of the base. Guide pins that extend upward through the adjusting seat are vertically fixed on the upper end faces of the front and rear parts of the base, respectively. Adjusting bolts are vertically threaded to the front and rear parts of the adjusting seat, and the lower end of the adjusting bolts abuts against the upper end face of the base.

[0009] Furthermore, the brush is provided with a fixing plate, which is fixed to the other end of the lead screw by radial screws.

[0010] Compared with the prior art, the present invention has the following advantages: 1. The device has a simple and compact structure, making it convenient for applying grease into the pump casing of a screw pump, and it is also easy to operate.

[0011] 2. The device can be finely adjusted to increase the range of pump housings to which it is applicable. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram of the left side of this utility model; Figure 3 For the present utility model Figure 1 AA section view; In the diagram: 10-Seat plate 11-Limiting block 12-Arc-shaped surface or inclined surface 13-Pin 14-Pin hole 20-Mounting seat 21-Base 22-Adjusting seat 23-Guide pin 24-Adjusting bolt 30-Screw 40-Nut seat 50-Brush 51-Fixing plate 52-Radial screw 60-Handle. Detailed Implementation

[0013] To make the above-mentioned features and advantages of this utility model more easily understood, specific embodiments are described below in conjunction with the accompanying drawings, but this utility model is not limited thereto.

[0014] refer to Figures 1 to 3 A screw pump housing grease application device includes a base plate 10, on which a limiting structure for positioning the pump housing is provided. A mounting base 20 is fixed to one end of the base plate, and a lead screw 30 is laterally mounted on the mounting base. A nut seat 40, which is threaded onto the lead screw and fixed to the mounting base, is connected to the lead screw. A brush 50 is mounted on the upper end of the lead screw on the base plate, and a crank handle 60 is provided on the other end of the lead screw. The screw housing is placed on the base plate and limited by the limiting structure. Grease is applied to the brush, and then the crank handle drives the lead screw to rotate and move laterally. The brush extends into the pump housing, and the grease on the brush is applied to the inner wall of the pump housing during the lateral movement of the lead screw.

[0015] In this embodiment, in order to position the pump casing, the limiting structure includes limiting blocks 11 disposed on the front and rear sides of both ends of the base plate, and the inner side of the limiting block is provided with an arc-shaped surface or inclined surface 12 that abuts against the outer side of the pump casing.

[0016] In this embodiment, to facilitate adjustment of the position of the limiting block according to the outer diameter of the pump casing, a pin 13 is fixed to the lower end of the limiting block, and multiple pin holes 14 for pin engagement are longitudinally spaced in the area where the limiting block is installed on the base plate. Thus, the position of the limiting block can be adjusted by engaging the pin of the limiting block with different pin holes.

[0017] In this embodiment, the arc-shaped surface or inclined surface of the limiting block is provided with an anti-slip rubber layer, which helps to prevent the pump casing from rotating.

[0018] In this embodiment, to adjust the height of the lead screw, the mounting base includes a base 21 fixed to the base plate. An adjusting seat 22 for fixing the nut seat is provided on the upper side of the base. Guide pins 23 extending upwards through the adjusting seat are vertically fixed to the upper surfaces of the front and rear parts of the base, respectively. Adjusting bolts 24 are vertically threaded to the front and rear parts of the adjusting seat, with the lower ends of the adjusting bolts abutting against the upper surface of the base. Thus, the adjusting seat can be adjusted within a certain height range by rotating the bolts. Since the brush at one end of the device contacts the inner wall of the pump casing during use, the lead screw does not simply exhibit a cantilevered state. When not in use, an additional support block can be configured to abut against the cantilevered end of the lead screw to reduce deformation.

[0019] In this embodiment, to facilitate brush replacement, a fixing plate 51 is provided on the brush, and the fixing plate is fixed to the other end of the lead screw by radial screws 52. The radial screws enable the brush to be detached, thereby facilitating brush replacement.

[0020] In this embodiment, the length of the base plate is typically around 1.2m to 1.4m, which is sufficient to ensure that the pump casing is stably placed on the base plate without one end tilting up. Since the weight of the pump casing is typically over 30-40kg, the pushing force of the lead screw driving the brush to move laterally will not cause the pump casing to move laterally on the base plate. Therefore, the base plate does not need to have a structure to limit the end of the pump casing.

[0021] In this embodiment, the lead screw is approximately 1.1m long and 16mm or 20mm in diameter. The diameter of the brush is slightly smaller than or equal to the inner diameter of the pump housing, so that the grease can fully contact the inner wall of the pump housing.

[0022] In use, first rotate the lead screw to the right side completely, then place the screw pump housing on the base plate. Use the limit block to limit its longitudinal direction and the anti-slip rubber layer to prevent circumferential rotation. Apply a layer of grease to the brush and drive the lead screw to rotate using the crank handle, gradually moving the brush to the left and extending it into the pump housing. As the brush moves to the left, grease is applied to the inner wall of the pump housing until the lead screw is fully inserted. At this point, half of the pump housing's inner wall has been greased. Remove the lead screw (brush), turn the pump housing around, and apply grease to the other half of the pump housing's inner wall.

[0023] If this utility model discloses or relates to mutually fixedly connected parts or structural components, then unless otherwise stated, a fixed connection can be understood as: a detachable fixed connection (e.g., using bolts or screws) or a non-detachable fixed connection (e.g., riveting or welding). Of course, mutually fixed connections can also be replaced by an integral structure (e.g., manufactured using a casting process) (except where it is obviously impossible to use an integral forming process).

[0024] In addition, unless otherwise stated, the terms used to indicate positional relationships or shapes in any of the technical solutions disclosed in this utility model above include states or shapes that are similar to, close to, or approximate with them.

[0025] Any component provided by this utility model can be assembled from multiple individual components, or it can be a single component manufactured by a one-piece molding process.

[0026] The above description is only a preferred embodiment of the present utility model. All equivalent changes and modifications made within the scope of the patent application of the present utility model shall be covered by the present utility model.

Claims

1. A screw pump housing grease application device, comprising a base plate, characterized in that, The base plate is provided with a limiting structure for the pump casing. One end of the base plate is fixed with a mounting base. A lead screw is horizontally arranged on the mounting base. A nut seat that is fixed to the mounting base is threaded onto the lead screw. A brush is installed at the upper end of the lead screw on the base plate. A crank handle is provided at the other end of the lead screw.

2. The screw pump housing grease application device according to claim 1, characterized in that, The limiting structure includes limiting blocks disposed on the front and rear sides of both ends of the seat plate, and the inner side of the limiting block is provided with an arc-shaped surface or inclined surface that abuts against the outer side of the pump casing.

3. The screw pump housing grease application device according to claim 2, characterized in that, The lower end of the limiting block is fixed with a pin, and the base plate has multiple pin holes spaced longitudinally in the area where the limiting block is installed for the pin to engage.

4. A screw pump housing grease application device according to claim 2 or 3, characterized in that, The limiting block has an anti-slip rubber layer on its arc-shaped or inclined surface.

5. A screw pump housing grease application device according to claim 1, 2 or 3, characterized in that, The mounting base includes a base fixed to a base plate. An adjusting seat for mounting a nut seat is provided on the upper side of the base. Guide pins that extend upward through the adjusting seat are vertically fixed on the upper surfaces of the front and rear parts of the base, respectively. Adjusting bolts are vertically threaded to the front and rear parts of the adjusting seat, and the lower ends of the adjusting bolts abut against the upper surfaces of the base.

6. The screw pump housing grease application device according to claim 5, characterized in that, The brush is provided with a fixing plate, which is fixed to the other end of the lead screw by radial screws.

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