Quenching device for metal balls in slewing bearing

Abstract

The utility model discloses a quenching device for a metal ball in a slewing bearing. The quenching device comprises a quenching box for loading quenching liquid, a plurality of spiral feeding pipelines are arranged in the quenching box, and a plurality of hollow holes are formed in the side walls of the spiral feeding pipelines; the upper end of the spiral feeding pipeline extends out of the rear side of the quenching box through an upper feeding pipe communicated with the spiral feeding pipeline and is connected with a feeding hopper; a hollow frame for loading metal balls is arranged in the quenching box and is positioned on the front side of the plurality of spiral feeding pipelines; when the hollowed-out frame is located at the bottommost part, a pipe opening of a lower discharging pipe connected with the lower end of the spiral feeding pipeline is arranged close to the rear side of the hollowed-out frame; the front side of the upper part of the quenching box is provided with a discharging channel communicated with the quenching box; the front side of the hollow frame is provided with an opening with the width smaller than that of the discharging channel; a door-shaped frame is erected on the quenching box, and a driving mechanism used for driving the hollow frame to vertically move is arranged on the door-shaped frame. The quenching device can be used for orderly and stably quenching the metal balls in the slewing bearing.

Description

Technical Field

[0001] The utility model relates to a slewing bearing processing device, in particular to a quenching device for metal balls in a slewing bearing. Background Art

[0002] Slewing bearings, also known as turntable bearings, are widely used in real industry and are called "machine joints". They are important transmission components required for machines that need to make relative rotational motion between two objects and simultaneously bear axial force, radial force, and tipping moment.

[0003] In a slewing bearing, metal balls are provided for providing rolling connection between an inner ring and an outer ring. In order to increase the strength of the metal balls and reduce the toughness of the metal balls, the metal balls need to be quenched.

[0004] Chinese patent CN202321328369.6 discloses a quenching device for producing slewing bearings, which is used to heat and quench cylindrical rolling elements. When in use, several cylindrical rolling elements are inserted into the sleeve ring, and the second electric push rod is extended to move the entire coil group downward. The coil is just located around the rolling element. The coil group is energized to heat the rolling element. After heating to a suitable temperature, the first electric push rod is retracted to immerse all the rolling elements in the quenching medium to complete the quenching.

[0005] The use of this quenching equipment requires inserting several cylindrical rolling elements into the sleeve ring. The process is cumbersome and not suitable for quenching metal balls. In addition, the quenching path is to move linearly in the vertical direction. The quenching stroke cannot be increased in the quenching liquid at a certain height. After the quenching is completed, multiple cylindrical rolling elements cannot be discharged in a centralized and orderly manner. Utility Model Content

[0006] The utility model aims to provide a quenching device for metal balls in a slewing bearing, which can quench the metal balls in the slewing bearing in an orderly and stable manner, improve the quenching effect by extending the quenching path, and the quenched metal balls can be discharged in a concentrated and orderly manner, thereby improving the removal efficiency.

[0007] In order to achieve the above-mentioned object, the utility model provides a quenching device for metal balls in a slewing bearing, the quenching device comprising a quenching box for loading quenching liquid;

[0008] A plurality of spiral feed pipes are arranged in the quenching box, and a plurality of hollow holes are arranged on the side wall of the spiral feed pipes;

[0009] The upper end of the spiral feed pipe extends from the rear side of the quenching box through an upper feed pipe connected thereto and is connected to a feed hopper;

[0010] A hollow frame for loading metal balls is provided in the quenching box at the front side of the plurality of spiral feeding pipes;

[0011] When the hollow frame is at the bottom, the pipe opening of the lower discharge pipe connected to the lower end of the spiral feed pipe is arranged close to the rear side of the hollow frame;

[0012] The upper front side of the quench box is provided with a discharge channel connected to the quench box, and the front side of the hollow frame is provided with an opening whose width is smaller than that of the discharge channel;

[0013] A door-shaped frame is mounted on the quenching box, and a driving mechanism for driving the hollow frame to move vertically is arranged on the door-shaped frame.

[0014] Preferably, the hollow frame includes a hollow plate arranged on the bottom side, side plates arranged on both sides and a rear plate arranged on the rear side, and the height of the hollow plate gradually decreases in a direction from the back to the front.

[0015] Preferably, the hollow plate is provided with a plurality of long holes arranged from left to right, and the long holes are arranged to extend in a front-to-rear direction.

[0016] Preferably, the driving mechanism comprises two motors mounted on the portal frame, the shafts of the motors pass through the portal frame and are connected to screw rods, and sliders are provided on both sides of the hollow frame and are respectively threadedly connected to one of the screw rods.

[0017] Preferably, a sliding groove for sliding the slider is provided on the inner wall of the quenching box.

[0018] Preferably, a liquid inlet pipe and a liquid outlet pipe are provided on the rear side of the quenching box, the liquid inlet pipe is provided above the liquid outlet pipe, and the liquid outlet pipe is provided at a position close to the bottom of the quenching box.

[0019] According to the above technical scheme, the utility model provides a quenching device, including a quenching box for loading quenching liquid; a plurality of spiral feeding pipes are arranged in the quenching box, and a plurality of hollow holes are provided on the side walls of the spiral feeding pipes; the upper end of the spiral feeding pipe extends from the rear side of the quenching box through an upper feeding pipe connected thereto and is connected to a feeding hopper; a hollow frame for loading metal balls is provided in the quenching box at a front position of the plurality of spiral feeding pipes; when the hollow frame is at the bottom, the pipe mouth of the lower discharge pipe connected to the lower end of the spiral feeding pipe is arranged close to the rear side of the hollow frame; a discharge channel connected to the quenching box is provided on the upper front side of the quenching box, and an opening with a width smaller than that of the discharge channel is provided on the front side of the hollow frame; a door-type frame is mounted on the quenching box, and a driving mechanism for driving the hollow frame to move vertically is provided on the door-type frame.

[0020] The method of using the quenching device for the metal ball in the slewing bearing is as follows: first, pour the quenching liquid into the quenching box so that the liquid level is below the discharge channel, then put the metal ball to be quenched into the feed hopper, the metal ball enters the spiral feed pipe through the upper feed pipe, and is quenched in the spiral feed pipe. After quenching, it is discharged from the lower discharge pipe into the hollow frame. At this time, the opening on the front side of the hollow frame fits with the inner wall of the quenching box to form a structure surrounded by four sides for carrying the metal ball. After the metal ball is put in for a period of time, the metal ball is stopped, and the driving mechanism is turned on to drive the hollow frame to move up. When the metal ball at the top passes through the discharge channel, it is discharged from the discharge channel and enters the external transmission device and sent to the next step. As the hollow frame rises, the metal balls are gradually discharged. After all the metal balls are discharged, the hollow frame is driven by the driving mechanism to move down to the lowest position, and the above operation is repeated.

[0021] The use of the quenching device for metal balls in the slewing bearing has the following beneficial effects: the metal balls in the slewing bearing can be quenched in an orderly and stable manner, the quenching effect is improved by extending the quenching path, and the quenched metal balls can be discharged in a concentrated and orderly manner, thereby improving the removal efficiency.

[0022] Other features and advantages of the present invention will be described in detail in the subsequent specific implementation section. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the following specific embodiments, they are used to explain the present invention, but do not constitute a limitation to the present invention. In the accompanying drawings:

[0024] Figure 1 It is a schematic diagram of the overall structure of a preferred embodiment of the quenching device;

[0025] Figure 2 It is a schematic diagram of a top view of a preferred embodiment of a quenching device;

[0026] Figure 3 It is a schematic diagram of the AA cross-sectional structure of a preferred embodiment of the quenching device;

[0027] Figure 4 It is a BB cross-sectional structural schematic diagram of a preferred embodiment of the quenching device;

[0028] Figure 5 It is a schematic diagram of the cooperation between the quenching box and the slider.

[0029] Description of Reference Numerals

[0030] 1-quenching box; 2-discharging channel; 3-gantry; 4-screw; 5-motor; 6-feed hopper; 7-screw feed pipe; 8-upper feed pipe; 9-hollow hole; 10-liquid inlet pipe; 11-lower discharge pipe; 12-hollow plate; 13-long hole; 14-side plate; 15-rear plate; 16-liquid discharge pipe; 17-slider; 18-slide. DETAILED DESCRIPTION

[0031] The specific implementation of the present invention is described in detail below in conjunction with the accompanying drawings. It should be understood that the specific implementation described here is only used to illustrate and explain the present invention, and is not used to limit the present invention.

[0032] In the present utility model, unless otherwise stated, directional words contained in terms such as "up, down, left, right, front, back, inside, outside" merely represent the orientation of the terms in normal usage, or are common names understood by those skilled in the art, and should not be regarded as limitations on the terms.

[0033] See also Figure 1-5 The quenching device for metal balls in the slewing bearing shown in the figure comprises a quenching box 1 for loading quenching liquid; a plurality of spiral feeding pipes 7 are arranged in the quenching box 1, and a plurality of hollow holes 9 are arranged on the side wall of the spiral feeding pipes 7; the upper end of the spiral feeding pipe 7 extends from the rear side of the quenching box 1 through the upper feeding pipe 8 connected thereto and is connected to the feeding hopper 6; a hollow frame for loading metal balls is arranged in the quenching box 1 at the front side of the plurality of spiral feeding pipes 7; when the hollow frame is at the bottom, the pipe mouth of the lower discharge pipe 11 connected to the lower end of the spiral feeding pipe 7 is arranged close to the rear side of the hollow frame; a discharge channel 2 connected to the quenching box 1 is arranged on the upper front side of the quenching box 1, and an opening with a width smaller than that of the discharge channel 2 is arranged on the front side of the hollow frame; a door frame 3 is mounted on the quenching box 1, and a driving mechanism for driving the hollow frame to move vertically is arranged on the door frame 3.

[0034] Through the implementation of the above technical solution, when in use, first pour the quenching liquid into the quenching box 1 so that the liquid level is below the discharge channel 2, and then put the metal balls to be quenched into the feed hopper 6. The metal balls enter the spiral feed pipe 7 through the upper feed pipe 8 and are quenched in the spiral feed pipe 7. After quenching, they are discharged from the lower discharge pipe 11 into the hollow frame. At this time, the opening on the front side of the hollow frame fits with the inner wall of the quenching box 1 to form a four-sided structure for carrying metal balls. After the metal balls are put in for a period of time, the feeding of the metal balls is stopped, and the driving mechanism is turned on to drive the hollow frame to move up. When the metal balls at the top pass through the discharge channel 2, they are discharged from the discharge channel 2 and enter the external transmission device and then sent to the next step. As the hollow frame rises, the metal balls are gradually discharged. After all the metal balls are discharged, the hollow frame is driven by the driving mechanism to move down to the lowest position, and the above operation is repeated.

[0035] The quenching device for metal balls in the slewing bearing can be used to quench the metal balls in the slewing bearing in an orderly and stable manner. A hollow hole 9 is provided on the side of the spiral feeding pipe 7. The quenching liquid enters the spiral feeding pipe 7 through the hollow hole 9. The quenching path is extended through the spiral feeding pipe 7 to improve the quenching effect. The quenched metal balls can be discharged in a concentrated and orderly manner, thereby improving the removal efficiency.

[0036] In this embodiment, in order to further provide a hollow frame, the hollow frame includes a hollow plate 12 arranged on the bottom side, side plates 14 arranged on both sides, and a rear plate 15 arranged on the rear side, and the height of the hollow plate 12 gradually decreases from the back to the front. The hollow frame is enclosed on three sides, and the front side is set as an opening, which can be blocked by the side wall of the quenching box 1, and can also be gradually opened when entering the discharge channel 2. The height of the hollow plate 12 gradually decreases from the back to the front. Through such a setting, it is easier for the metal ball to roll into the discharge channel 2.

[0037] In this embodiment, in order to further provide a hollow plate 12, a plurality of long holes 13 arranged from left to right are provided on the hollow plate 12, and the long holes 13 are arranged to extend from front to back. In order to prevent the long holes 13 from blocking the main metal ball, the width of the long holes 13 should be less than 1 / 10 of the diameter of the metal ball, and the leakage effect can be improved by increasing the number of the long holes 13.

[0038] In this embodiment, in order to further provide a driving mechanism, the driving mechanism includes two motors 5 installed on the door frame 3, the shaft of the motor 5 passes through the door frame 3 and is connected to the screw rod 4, and the two sides of the hollow frame are provided with sliders 17 respectively threadedly connected to one of the screw rods 4. When in use, the two motors 5 rotate synchronously, so that the screw rods 4 at both ends can drive the two ends of the hollow frame to move up or down synchronously.

[0039] In this embodiment, in order to improve the smoothness of the sliding of the slider 17 , a sliding groove 18 for the sliding of the slider 17 is provided on the inner wall of the quenching box 1 .

[0040] In this embodiment, in order to facilitate the replacement of quenching liquid, a liquid inlet pipe 10 and a liquid outlet pipe 16 are provided on the rear side of the quenching box 1. The liquid inlet pipe 10 is provided above the liquid outlet pipe 16, and the liquid outlet pipe 16 is provided near the bottom of the quenching box 1.

[0041] The preferred embodiments of the present invention are described in detail above in conjunction with the accompanying drawings. However, the present invention is not limited to the specific details in the above embodiments. Within the technical concept of the present invention, the technical solution of the present invention can be subjected to a variety of simple modifications, and these simple modifications all belong to the protection scope of the present invention.

[0042] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, the present utility model will not further describe various possible combinations.

[0043] In addition, various embodiments of the present invention may be arbitrarily combined, and as long as they do not violate the concept of the present invention, they should also be regarded as the contents disclosed by the present invention.

Claims

1. A quenching device for metal balls in a slewing bearing, characterized in that: The quenching device comprises a quenching box (1) for loading quenching liquid; A plurality of spiral feed pipes (7) are arranged in the quenching box (1), and a plurality of hollow holes (9) are arranged on the side wall of the spiral feed pipe (7); The upper end of the spiral feeding pipe (7) extends from the rear side of the quenching box (1) through an upper feeding pipe (8) connected thereto and is connected to a feeding hopper (6); A hollow frame for loading metal balls is provided in the quenching box (1) at the front side of the plurality of spiral feeding pipes (7); When the hollow frame is at the bottom, the pipe opening of the lower discharge pipe (11) connected to the lower end of the spiral feed pipe (7) is arranged close to the rear side of the hollow frame; The upper front side of the quench box (1) is provided with a discharge channel (2) connected to the quench box (1), and the front side of the hollow frame is provided with an opening whose width is smaller than that of the discharge channel (2); A door frame (3) is mounted on the quenching box (1), and a driving mechanism for driving the hollow frame to move vertically is arranged on the door frame (3).

2. The quenching device for metal balls in a slewing bearing according to claim 1, characterized in that: The hollow frame comprises a hollow plate (12) arranged on the bottom side, side plates (14) arranged on both sides, and a rear plate (15) arranged on the rear side, and the height of the hollow plate (12) gradually decreases in a direction from the back to the front.

3. The quenching device for metal balls in a slewing bearing according to claim 2, characterized in that: The hollow plate (12) is provided with a plurality of elongated holes (13) arranged in a direction from left to right, and the elongated holes (13) are arranged to extend in a direction from front to back.

4. The quenching device for metal balls in a slewing bearing according to claim 1, characterized in that: The driving mechanism comprises two motors (5) mounted on the door frame (3); the shafts of the motors (5) pass through the door frame (3) and are connected to screw rods (4); and sliding blocks (17) are provided on both sides of the hollow frame and are respectively threadedly connected to one of the screw rods (4).

5. The quenching device for metal balls in a slewing bearing according to claim 4, characterized in that: The inner wall of the quenching box (1) is provided with a sliding groove (18) for the sliding block (17) to slide.

6. The quenching device for metal balls in a slewing bearing according to claim 1, characterized in that: A liquid inlet pipe (10) and a liquid outlet pipe (16) are arranged on the rear side of the quenching box (1); the liquid inlet pipe (10) is arranged above the liquid outlet pipe (16), and the liquid outlet pipe (16) is arranged near the bottom of the quenching box (1).

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