Inner cooling machining device for arc belt of plunger pump body

Abstract

The utility model discloses a plunger pump body arc belt inner cooling machining device which comprises an upper cutter body, a lower cutter body and cutter heads, the lower end of the upper cutter body is fixedly provided with the lower cutter body, the lower cutter body is symmetrically and rotatably sleeved with the two cutter heads, the lower cutter body is sleeved with paired bearings, a gap is formed between the paired bearings, and a first cooling liquid channel is formed in a main shaft in a penetrating mode. A second cooling liquid channel is formed in the lower cutter body in a penetrating mode, the first cooling liquid channel is communicated with the second cooling liquid channel, a third cooling liquid channel is formed in the cutter head, a channel communicated with the second cooling liquid channel and a paired bearing gap is formed in the lower cutter body, and a water nozzle is arranged at the position, located at an outlet of the third cooling liquid channel, of the cutter head. The cooling channels are arranged in the main shaft and the lower cutter body, and water is sprayed out from the water nozzle, so that the inner cooling of the main shaft, the lower cutter body and the cutter head in the cutting process is realized, the high temperature problem of a blade and a workpiece in the cutting process is solved, the relatively constant temperature is kept, and the high-precision stability of machining is kept.

Description

Technical Field

[0001] The utility model relates to the technical field of machining equipment, in particular to a device for cold machining an arc zone inside a plunger pump body. Background Art

[0002] The arc band of the plunger pump body is difficult to process with the machine tools on the market. Double cutter heads are usually not enough. If a single cutter head is used, it must be processed from two directions, and the processing efficiency is very low. In addition, due to structural problems, external water cooling is used to cool the cutter head, but the external cooling effect is not ideal, which has a great impact on the processing accuracy.

[0003] Therefore, we propose a plunger pump body arc zone internal cold processing device to solve the above problems. Utility Model Content

[0004] The utility model aims to provide a plunger pump body arc zone inner cold processing device to solve the problems raised in the above background technology.

[0005] To achieve the above purpose, the utility model provides the following technical solutions: a plunger pump body arc belt internal cold processing device, comprising: an upper cutter body, a lower cutter body and a cutter disc, the lower end of the upper cutter body is fixedly mounted with the lower cutter body, and two cutter discs are symmetrically rotatably sleeved on the lower cutter body;

[0006] A main shaft is rotatably arranged in the upper cutter body, a small bevel gear is fixedly installed on the side of the lower part of the main shaft, and a hole is provided at the lower part of the upper cutter body for the small bevel gear to pass through;

[0007] The lower cutter body is sleeved with a matching bearing, which connects the lower cutter body to the cutter disc for rotation, and there is a gap between the matching bearings;

[0008] A first coolant channel is formed in the main shaft, a second coolant channel is formed in the lower cutter body, and the first coolant channel is connected to the second coolant channel;

[0009] A third coolant channel is provided in the cutter disc, a channel connecting the second coolant channel and the gap between the paired bearings is provided on the lower cutter body, and the gap between the paired bearings is connected to the third coolant channel;

[0010] The cutter disc is provided with a water nozzle at the outlet of the third coolant channel.

[0011] Preferably, a large bevel gear is fixedly installed on the opposite side of the cutter disc by screws, and the large bevel gear is meshed and connected with the small bevel gear.

[0012] Preferably, bearings are sleeved on the upper and lower parts of the main shaft, and a rotating shaft locking cover is provided on the main shaft and the upper part of the upper cutter body. The rotating shaft locking cover is fixedly connected to the upper cutter body, and the rotating shaft locking cover is rotatably connected to the main shaft.

[0013] Preferably, locking covers of a cutter head are fixedly installed at two ends of the lower cutter body, an adjustable tool holder is embedded in the cutter head, a cutter insert is fixedly installed at the end of the adjustable tool holder, and a nozzle is located in the advancing direction of rotation of the cutter insert.

[0014] Preferably, the lower end of the main shaft is inserted into the lower cutter body, and a second water seal is sleeved on the part of the main shaft inserted into the lower cutter body, and a first water seal is arranged on one side of the mating bearings facing each other.

[0015] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0016] By arranging cooling channels in the main shaft and the lower cutter body and then spraying out from the nozzle, internal cooling and temperature reduction of the main shaft, the lower cutter body and the cutter head are realized during the cutting process, the high-temperature problems of the cutting blade and the workpiece during the cutting process are solved, a relatively constant temperature is maintained, and the machining is kept stable with high precision. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a schematic structural view of the utility model;

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

[0019] Figure 3 is a front sectional view of the utility model;

[0020] Figure 4 is a side sectional view of the cutter head in the utility model.

[0021] In the figure: 1, upper cutter body; 2, cutter head; 3, lower cutter body; 4, mating bearings; 5, first water seal; 7, second water seal; 8, large bevel gear; 9, small bevel gear; 10, bearing; 11, main shaft; 12, first coolant channel; 13, second coolant channel; 14, third coolant channel; 15, nozzle; 16, adjustable tool holder; 17, cutter insert; 18, cutter head locking cover; 19, rotating shaft locking cover; 21, screw. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0022] The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0023] Please refer to Figures 1-4 , the present utility model provides a technical solution: a plunger pump body circular arc belt internal cooling machining device, including: an upper cutter body 1, and a lower cutter body 3 is fixedly installed at the lower end of the upper cutter body 1;

[0024] A main shaft 11 is rotatably arranged inside an upper tool body 1. A small bevel gear 9 is fixedly installed on the lower side surface of the main shaft 11. A hole through which the small bevel gear 9 passes is opened in the lower part of the upper tool body 1;

[0025] Two tool disks 2 are symmetrically and rotatably sleeved on a lower tool body 3. A large bevel gear 8 is fixedly installed on one opposite side of the tool disk 2 through a screw 21. The large bevel gear 8 is meshed and connected with the small bevel gear 9 to realize the transmission from the main shaft 11 to the tool disk 2;

[0026] Bearings 10 are sleeved on both the upper and lower parts of the main shaft 11. The rotation connection between the main shaft 11 and the upper tool body 1 is realized through the bearings 10;

[0027] A rotating shaft locking cover 19 is arranged on the upper parts of the main shaft 11 and the upper tool body 1. The rotating shaft locking cover 19 is fixedly connected with the upper tool body 1, and the rotating shaft locking cover 19 is rotatably connected with the main shaft 11;

[0028] A pair of mating bearings 4 are sleeved on the lower tool body 3. The rotation connection between the lower tool body 3 and the tool disk 2 is realized through the pair of mating bearings 4;

[0029] Tool disk locking covers 18 are fixedly installed at both ends of the lower tool body 3;

[0030] An adjustable tool handle 16 is symmetrically and embeddedly installed in the tool disk 2. A cutting insert 17 is fixedly installed at the end of the adjustable tool handle 16. During the rotation of the tool disk 2, the object is cut by the high-speed rotation of the cutting insert 17;

[0031] A first coolant channel 12 is penetrated and opened inside the main shaft 11, and a second coolant channel 13 is penetrated and opened inside the lower tool body 3. The first coolant channel 12 is communicated with the second coolant channel 13;

[0032] A third coolant channel 14 is opened inside the tool disk 2. A gap for coolant to pass through is provided between the pair of mating bearings 4. A channel communicating the second coolant channel 13 and the gap of the pair of mating bearings 4 is opened on the lower tool body 3, and the gap of the pair of mating bearings 4 is communicated with the third coolant channel 14;

[0033] A water nozzle 15 is provided at the outlet of the third coolant channel 14 of the tool disk 2. The water nozzle 15 is close to the cutting insert 17 in the rotation direction of the cutting insert 17;

[0034] Coolant is injected into the first coolant channel 12. The coolant sequentially passes through the second coolant channel 13 and the third coolant channel 14 and sprays out from the water nozzle 15 to spray and cool the cutting part of the cutting insert 17;

[0035] The lower end of the main shaft 11 is inserted into the lower tool body 3, and a second water seal 7 is sleeved on the part of the main shaft 11 inserted into the lower tool body 3 to seal the connection between the first coolant channel 12 and the second coolant channel 13;

[0036] On the opposite side of the mating bearing 4, a first water seal 5 is provided to prevent the connection between the mating bearing 4 and the cutter head 2 from being sealed.

[0037] Working principle: By arranging cooling channels inside the main shaft 11 and the lower cutter body 3 and then spraying out from the water nozzle 15, internal cooling and temperature reduction of the main shaft 11, the lower cutter body 3 and the cutter head 2 during the cutting process are achieved, and the sealing of the coolant is realized through the first water seal 5 and the second water seal 7;

[0038] The water nozzle 15 is arranged in the advancing direction of the cutting insert 17, and the cutting insert 17 can be cooled by spraying the coolant first and then cutting.

[0039] The content not described in detail in this specification belongs to the prior art well-known to those skilled in the art.

[0040] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A plunger pump body arc zone internal cold processing device, comprising: An upper blade body (1), a lower blade body (3) and a blade disc (2), wherein the lower blade body (3) is fixedly mounted on the lower end of the upper blade body (1), and two blade discs (2) are symmetrically rotatably sleeved on the lower blade body (3); The invention is characterized in that: a matching bearing (4) is sleeved on the lower blade body (3), the matching bearing (4) enables the lower blade body (3) to be rotatably connected to the blade disc (2), and there is a gap between the matching bearings (4); A main shaft (11) is rotatably arranged in the upper cutter body (1), a small bevel gear (9) is fixedly installed on the side surface of the lower part of the main shaft (11), and a hole is provided at the lower part of the upper cutter body (1) for the small bevel gear (9) to pass through; A first coolant channel (12) is provided through the main shaft (11), a second coolant channel (13) is provided through the lower blade body (3), and the first coolant channel (12) is connected to the second coolant channel (13); A third coolant channel (14) is provided in the cutter disc (2), a channel communicating with the second coolant channel (13) and the gap between the paired bearings (4) is provided on the lower cutter body (3), and the gap between the paired bearings (4) is communicated with the third coolant channel (14); The cutter disc (2) is provided with a water nozzle (15) at the outlet of the third coolant channel (14).

2. A plunger pump body arc zone internal cold working device according to claim 1, characterized in that: The large bevel gear (8) is fixedly mounted on the opposite side of the cutter disc (2) by means of screws (21), and the large bevel gear (8) is meshedly connected with the small bevel gear (9).

3. The device for cold working the arc zone inside the plunger pump body according to claim 1, characterized in that: The upper and lower parts of the main shaft (11) are sleeved with bearings (10); the main shaft (11) and the upper part of the upper cutter body (1) are provided with a rotating shaft locking cover (19); the rotating shaft locking cover (19) is fixedly connected to the upper cutter body (1); and the rotating shaft locking cover (19) is rotatably connected to the main shaft (11).

4. The device for cold working the arc zone inside the plunger pump body according to claim 1, characterized in that: The two ends of the lower blade body (3) are fixedly mounted with blade disc locking covers (18); an adjustable blade handle (16) is symmetrically mounted in the embedded center of the blade disc (2); a blade pellet (17) is fixedly mounted at the end of the adjustable blade handle (16); and the water nozzle (15) is located close to the blade pellet (17) in the rotation direction of the blade pellet (17).

5. The device for cold working the inner arc zone of a plunger pump body according to claim 1, characterized in that: The lower end of the main shaft (11) is inserted into the lower blade body (3), and the portion of the main shaft (11) inserted into the lower blade body (3) is sleeved with a second water seal (7), and a first water seal (5) is provided on the side opposite to the paired bearing (4).

Images