CN111451449A

CN111451449A - Bolster and bolster center plate capable of guaranteeing smoothness of inner side wall during cutting

Info

Publication number: CN111451449A
Application number: CN201911301582.6A
Authority: CN
Inventors: 旷丹锋; 陈祖华; 何氢玲; 严建军; 刘涛; 董中友
Original assignee: CRRC Yangtze Tongling Co Ltd
Current assignee: CRRC Yangtze Tongling Co Ltd
Priority date: 2020-06-07
Filing date: 2020-06-07
Publication date: 2020-07-28

Abstract

The invention relates to the technical field of production and manufacturing of swing bolster, and discloses a swing bolster and a swing bolster center plate capable of ensuring smooth inner side wall in cutting, which comprises a swing bolster body, a riser partition sand core is arranged above the swing bolster body, after the produced casting is formed and shot blast cleaned, the riser partition sand core is removed, a riser feeding channel is cut firstly, then a riser sleeve on the top surface of the core disc surface is cut, after the riser partition sand core is removed, a gap is arranged between the riser feeding channel and the inner side surface of the core plate, the bolster cutting machine has the advantages of being novel in design, simple in structure, easy to operate, capable of solving the problem that the cutting quality of a bolster is poor, capable of guaranteeing that the inner side wall is smooth in cutting, and suitable for being popularized and used in a large range.

Description

Bolster and bolster center plate capable of guaranteeing smoothness of inner side wall during cutting

Technical Field

The invention relates to the technical field of production and manufacturing of swing bolster, in particular to a swing bolster and a swing bolster center plate capable of ensuring that the inner side wall is smooth during cutting.

Background

The swing bolster is one of important steel castings in railway freight cars, the core plate structure of the swing bolster generally comprises a concave-convex structure with a lower core plate and a plane structure without the lower core plate, in order to improve the quality of the swing bolster core plate and solve the problems of shrinkage porosity, shrinkage cavity and the like, a riser head is required to be arranged on the core plate surface of the swing bolster for feeding, for the swing bolster without the lower core plate plane structure, a riser head can be directly arranged on the core plate surface, after a casting is formed, the riser head is easy to cut, for the swing bolster with the concave-convex structure of the lower core plate, the original process design is that the riser head is also directly arranged on the core plate surface, but after the casting is formed, the riser head is directly connected with the inner side wall of the core plate, the problems of difficult cutting, poor cutting quality, increase of the subsequent processing time of the core plate surface of the swing bolster and abrasion of a processing cutter, low production efficiency and the like are caused, the high-efficiency work of the swing bolster is not beneficial, therefore, the cutting quality of, the technical problem to be solved is solved.

Disclosure of Invention

Technical problem to be solved

Aiming at the defects of the prior art, the invention provides the swing bolster and the swing bolster core disc which can ensure that the inner side wall is smooth during cutting, has the advantage of ensuring that the inner side wall is smooth during cutting, and solves the problem of poor swing bolster cutting quality.

(II) technical scheme

In order to achieve the purpose of ensuring the flatness of the inner side wall during cutting, the invention provides the following technical scheme: the utility model provides a smooth swing bolster of inside wall and swing bolster core dish when can guaranteeing to cut, includes the swing bolster body, inside cavity has been seted up to the inside of swing bolster body, the inside fixedly connected with benefit shrinkage cavity of inside cavity, the bottom of swing bolster body has been seted up and has been led to the groove, the right side fixedly connected with installed part of swing bolster body, the mounting hole has been seted up to the outer wall of installed part, the top fixedly connected with heart quotation heat festival of swing bolster body, the top fixedly connected with heart quotation heat festival of heart quotation has heart quotation, the inboard fixedly connected with rising head of heart quotation cuts off the psammitolite, the inboard fixedly connected with rising head benefit shrinkage channel of rising head psammitolite, the top fixedly connected with riser cover of heart quotation, the heat preservation rising head has been seted up to the.

Preferably, the riser bush is cylindrical, so that the feeding effect is obviously improved.

Preferably, the bottom of the riser sleeve covers the riser feeding channel and the riser partition sand core, so that the riser feeding channel is smooth.

Preferably, the diameter of the riser sleeve is eight centimeters, so that the riser sleeve is ensured to meet the solidification requirement, and the volume of the riser is reduced.

Preferably, four through grooves are uniformly formed in the bottom of the swing bolster body, so that the swing bolster body is convenient to mount and ventilate.

Preferably, the right side of installed part is the cambered surface, the diversified installation of being convenient for, and installation angle is more level and smooth.

Preferably, core heads are reserved at the upper end and the lower end of the riser partition sand core, so that the riser partition sand core is prevented from being skewed, broken and the like under the impact of external force.

(III) advantageous effects

Compared with the prior art, the invention provides the swing bolster and the swing bolster core disc which can ensure that the inner side wall is smooth during cutting, and the swing bolster core disc have the following beneficial effects:

1. this can guarantee smooth swing bolster of inside wall and swing bolster center dish during cutting, both showing through columniform riser cover and having improved the feeding effect, guaranteed the noncongestion of riser feeding passageway again, the riser that leaves the core head through upper and lower both ends cuts off the psammitolite and has avoided the riser to cut off the psammitolite skew and the emergence of the condition such as fracture under the external force strikes, the stability of riser wall psammitolite has been guaranteed, through the riser cover, riser feeding passageway and riser cut off the cooperation between the psammitolite and use, thereby reached and to make swing bolster and swing bolster center dish more reliable and more stable effect.

2. This can guarantee smooth bolster of inside wall and bolster heart dish during cutting, the foundry goods shaping shot-blast back of production, clear away the rising head and cut off the psammitolite, cut the rising head feeding passageway earlier, cut heart quotation top surface riser cover again, because the rising head cuts off the psammitolite and clears away the back, there is the space between rising head feeding passageway and the heart quotation inboard surface, so can not cause the injury to the inside wall of heart quotation during the cutting, cutting work volume also very reduces, heart quotation inboard wall levels, arrangement work efficiency and machine tooling work efficiency have effectively been improved, cut off the psammitolite through the rising head, the riser feeding passageway, cooperation between riser cover and the heart quotation is used, thereby reached and can guarantee the smooth effect of inside wall when cutting.

Drawings

FIG. 1 is a schematic view of the structure of the present invention.

In the figure: 1-a swing bolster body, 2-an internal cavity, 3-a feeding hole, 4-a bottom through groove, 5-an installation piece, 6-an installation hole, 7-a hot section of a core disk surface, 8-a core disk surface, 9-a riser feeding channel, 10-a riser partition sand core, 11-a riser sleeve and 12-a heat insulation riser.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-1, a bolster and a bolster core plate capable of ensuring smooth inner side walls during cutting comprises a bolster body 1, an inner cavity 2 is formed inside the bolster body 1, a shrinkage cavity 3 is fixedly connected inside the inner cavity 2, a bottom through groove 4 is formed in the bottom of the bolster body 1, four through grooves 4 are uniformly formed in the bottom of the bolster body 1 to facilitate installation and ventilation of the bolster body 1, an installation part 5 is fixedly connected to the right side of the bolster body 1, the right side of the installation part 5 is a cambered surface to facilitate diversified installation, the installation angle is smoother, an installation hole 6 is formed in the outer wall of the installation part 5, a core plate surface hot node 7 is fixedly connected to the top of the bolster body 1, a core plate surface 8 is fixedly connected to the top of the core plate surface hot node 7, a riser partition sand core 10 is fixedly connected to the inner side of the core 8, core heads are left at the upper end and the lower end of the riser core 10, the riser partition sand core has the advantages that the situation that the riser partition sand core 10 is inclined and broken under the impact of external force is avoided, the riser feeding channel 9 is fixedly connected to the inner side of the riser partition sand core 10, the riser sleeve 11 is fixedly connected to the top of the central disc surface 8, the riser sleeve 11 is cylindrical, the feeding effect is obviously improved, the riser feeding channel 9 and the riser partition sand core 10 are covered at the bottom of the riser sleeve 11, the riser feeding channel 9 is guaranteed to be smooth, the diameter of the riser sleeve 11 is eight centimeters, the riser sleeve 11 is guaranteed to meet the solidification requirement, the riser volume is also reduced, and the heat insulation riser 12 is arranged inside the riser sleeve 11.

The working principle is that after the produced casting is formed and shot-blasted, the riser partition sand core 10 is removed, the riser feeding channel 9 is cut firstly, then the riser sleeve 11 on the top surface of the core disc surface 8 is cut, and after the riser partition sand core 10 is removed, a gap is formed between the riser feeding channel 9 and the inner side surface of the core disc surface 8, so that the inner side wall of the core disc surface 8 cannot be damaged during cutting, the cutting workload is greatly reduced, the inner side wall of the core disc surface 8 is flat, and the finishing working efficiency and the machining working efficiency are effectively improved.

In conclusion, according to the bolster and the bolster core plate which can ensure that the inner side wall is smooth during cutting, the feeding effect is remarkably improved through the cylindrical riser sleeve 11, the smoothness of the riser feeding channel 9 is ensured, the riser partition sand core 10 with the core heads arranged at the upper end and the lower end is used for avoiding the situations of deflection, fracture and the like of the riser partition sand core 10 under the impact of external force, the stability of the riser partition sand core 10 is ensured, and the bolster core plate can be more stable and reliable through the matched use among the riser sleeve 11, the riser feeding channel 9 and the riser partition sand core 10; after shot blasting cleaning is carried out on the formed casting, a riser partition sand core 10 is removed, a riser feeding channel 9 is cut firstly, a riser sleeve 11 is cut on the top surface of a core disc surface 8, after the riser partition sand core 10 is removed, a gap is formed between the riser feeding channel 9 and the inner side surface of the core disc surface 8, so that damage to the inner side wall of the core disc surface 8 cannot be caused during cutting, the cutting workload is greatly reduced, the inner side wall of the core disc surface 8 is smooth, the finishing work efficiency and the machining work efficiency are effectively improved, the riser partition sand core 10, the riser feeding channel 9, the riser sleeve 11 and the core disc surface 8 are matched for use, and therefore the effect that the inner side wall is smooth during cutting can be guaranteed is achieved.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a smooth truck bloster of inside wall and truck bloster heart dish when can guaranteeing the cutting, includes truck bloster body (1), its characterized in that: an inner cavity (2) is arranged inside the swing bolster body (1), a compensation hole (3) is fixedly connected inside the inner cavity (2), a bottom through groove (4) is arranged at the bottom of the swing bolster body (1), a mounting piece (5) is fixedly connected to the right side of the swing bolster body (1), the outer wall of the mounting piece (5) is provided with a mounting hole (6), the top of the swing bolster body (1) is fixedly connected with a central panel surface heat joint (7), the top of the hot section (7) of the heart disk surface is fixedly connected with a heart disk surface (8), the inner side of the core plate surface (8) is fixedly connected with a riser partition sand core (10), a riser feeding channel (9) is fixedly connected to the inner side of the riser partition sand core (10), the top of the heart disk surface (8) is fixedly connected with a riser sleeve (11), and a heat-insulating riser (12) is arranged in the riser sleeve (11).

2. The bolster and bolster center plate capable of ensuring the flatness of the inner side wall during cutting as claimed in claim 1, wherein: the riser bush (11) is cylindrical.

3. The bolster and bolster center plate capable of ensuring the flatness of the inner side wall during cutting as claimed in claim 1, wherein: the bottom of the riser sleeve (11) covers the riser feeding channel (9) and the riser partition sand core (10).

4. The bolster and bolster center plate capable of ensuring the flatness of the inner side wall during cutting as claimed in claim 1, wherein: the riser bush (11) has a diameter of eight centimeters.

5. The bolster and bolster center plate capable of ensuring the flatness of the inner side wall during cutting as claimed in claim 1, wherein: four through grooves (4) are uniformly formed in the bottom of the swing bolster body (1).

6. The bolster and bolster center plate capable of ensuring the flatness of the inner side wall during cutting as claimed in claim 1, wherein: the right side of the mounting piece (5) is an arc surface.

7. The bolster and bolster center plate capable of ensuring the flatness of the inner side wall during cutting as claimed in claim 1, wherein: core heads are reserved at the upper end and the lower end of the riser partition sand core (10).