Abstract

An apparatus (20) for positioning a horizontal projection point of the center of the upper end of an inclined tube (10), comprising a clamping mechanism (21) capable of clamping the inclined tube (10); a telescopic adjusting member (23) connected to the center of the clamping mechanism (21) by means of a suspending rope (231); a first slide rail (261) provided at the lower portion of the clamping mechanism (21) and extending into the inclined pipe (10); a first gravity ball (271) connected to the telescopic adjusting member (23) and slidably provided on the first slide rail (261); a second slide rail (262) located outside the inclined tube (10); a second gravity ball (272) provided on the second slide rail (262); a rotatable first rope drum (281) wound with a first connecting rope (286), wherein the first connecting rope (286) is connected to the first gravity ball (271); a rotatable second rope drum (282) wound with a second connecting rope (287), wherein the second connecting rope (287) is connected to the second gravity ball (272); and a drive member (283), configured to drive the first rope drum (281) and the second rope drum (282) to rotate synchronously, so as to implement the synchronous winding and unwinding of the first connecting rope (286) and the second connecting rope (287).

IPC Classes  ?

• G01C 15/00 - Surveying instruments or accessories not provided for in groups

Abstract

Disclosed in the present invention is a novel tramcar frog, comprising a frog body, a sliding block, and four grooved steel rails respectively fixed to four ends of the frog body by welding. An assembly cavity is formed in the upper end face of the frog body, and the sliding block is movably and adjustably assembled in the assembly cavity; two sets of symmetrically arranged frog flangeways each in the shape of the Chinese character "八" are formed on the left and right sides of the assembly cavity on the upper end face of the frog body; a first connecting flangeway and a second joint flangeway are formed in the upper end face of the sliding block, and the first connecting flangeway and the second connecting flangeway are in the shape of the Chinese character "八". By adjusting the position of the sliding block, the first connecting flangeway and the second connecting flangeway are communicated with a corresponding pair of obliquely corresponding frog flangeways in the two sets of frog flangeways each in the shape of the Chinese character "八", and grooves of the four grooved steel rails are respectively correspondingly communicated with the corresponding frog flangeways in the two sets of frog flangeways each in the shape of the Chinese character "八". According to the present invention, the tramcar passing speed can be increased, the vibration noise is avoided, and the abrasion of a frog point of the frog is reduced.

IPC Classes  ?

• E01B 7/14 - Frogs with movable parts

Abstract

The present invention relates to a regular polyhedron apparatus for laser scanning identification, and a construction method for same. The apparatus comprises: an apparatus body in the shape of a regular polyhedron, the apparatus body having a plurality of mounting surfaces which are in the shape of a regular polygon; magnets mounted on mounting surfaces of the apparatus body; and light return sheets mounted on the mounting surfaces of the apparatus body. According to the regular polyhedron apparatus, the magnets and the light return sheets are arranged on the mounting surfaces, so that the magnet on one mounting surface can be attracted on the metal surface to be scanned and identified, and after the regular polyhedron apparatus is attracted and fixed, the light return sheet located on the mounting surface on the outer side of the regular polyhedron apparatus can be used as a marking point for laser scanning identification. Compared with an existing method where light return sheets need to be manually pasted and removed one by one, the multiple regular polyhedron apparatuses can be attracted to the metal surface to be scanned and identified at a time by means of the magnets, and the arrangement and removal efficiency of marking points can be greatly improved, thereby improving the laser scanning identification efficiency.

IPC Classes  ?

• G01C 15/02 - Means for marking measuring points
• G01B 11/00 - Measuring arrangements characterised by the use of optical techniques
• F16B 1/00 - Devices for securing together, or preventing relative movement between, constructional elements or machine parts

Abstract

Disclosed is a hole fabricating method for an oversized rod member. The method comprises assembling and welding according to design requirements to obtain a box-shaped rod member, the box-shaped rod member comprising a rod member upper cover plate, a first rod member side web plate, a second rod member side web plate, a lower cover plate, a first gusset plate, and a second gusset plate; and drilling a hole group positioning hole of the first rod member side web plate and a hole group positioning hole of the first gusset plate. The hole fabricating method for an oversized rod member provided by the present application changes the working idea that an oversized rod member can only use a rod member three-dimensional scribing sampling drilling method and can solve the problem of an oversized rod member not being able to pass through a numerically controlled machine tool. By means of using a jig for hole fabricating, the difficulty of the three-dimensional scribing sampling drilling method and the limitation of the technical level of an operator, which cause the concentricity of a hole group of the rod member to be out of tolerance, are avoided. The relative precision of the hole group of the rod member is ensured. Furthermore, the efficiency of fabricating holes in a rod member can be increased, and manufacturing costs and working periods are saved.

IPC Classes  ?

• B23P 23/02 - Machine tools for performing different machining operations
• B23B 47/28 - Drill jigs for workpieces
• E01D 19/00 - Details of bridges

Abstract

A pivot type movable point frog friction reduction device. A pivot spacer iron (1) is fixedly arranged between a long point rail and a short point rail, the pivot spacer iron (1) is fixedly provided with a bearing device (2) downwards, and the bearing device (2) is composed of a bearing housing and a rotating shaft rotatably connected to the bearing housing; a base plate is fixedly provided with a positioning table (3) corresponding to the bearing device (2), a positioning key (4) is fixedly arranged on an inner side of the positioning table (3), and a positioning slot (12) that matches the positioning key (4) is provided in a side face of the bearing device (2); and after the friction reduction device is mounted, the bearing device (2) is embedded into the positioning table (3), and the positioning key (4) is embedded into the positioning slot (12). Sliding friction generated when a long and short point rail assembly moves is changed into rolling friction of a bearing by means of the bearing device (2), so that the switching resistance is reduced; and the structure of the friction reduction device is simple, and installation is convenient.

IPC Classes  ?

• E01B 7/14 - Frogs with movable parts

Abstract

A tramcar turnout switch structure, mainly composed of a manganese steel base (1), and a straight stock rail (2) and a curved switch rail (3) fixed inside the manganese steel base (1). The manganese steel base (1) comprises a first connecting section (101) located at the head, a second connecting section (102) located at the tail, and a base section (103) located between the first connecting section (101) and the second connecting section (102). The base (1) is integrally cast with high manganese steel, and has a short production cycle, a small processing amount, and a great advantage in the production cost. Since the base (1) is integrally cast, after the straight stock rail (2) and the curved switch rail (3) are assembled, the overall stability of the structure is good, and the assembly precision is higher. The straight stock rail (2) and the curved switch rail (3) can be made of alloy steel plates, and the hardness thereof is generally 380 HBW or more, which can well meet the requirements of a user for wear resistance, and reduce the maintenance workload.

IPC Classes  ?

• E01B 21/00 - Track superstructure specially adapted for tramways in paved streets
• E01B 21/02 - Special supporting meansDraining of rails
• E01B 21/04 - Special fastenings, joint constructions, or tie-rods
• E01B 7/02 - TonguesAssociated constructions
• E01B 7/10 - Frogs

Abstract

A steel bridge automated coating apparatus and a film coating method thereof. The steel bridge automated coating apparatus comprises a planar movement mechanism and a spray-coating component arranged thereon. The spray-coating component comprises two spray head assemblies (3, 6), a quick air-drying mechanism (4) and a paintwork dent detection mechanism (5) that are disposed between the two spray head assemblies (3, 6), and two telescopic pushing mechanisms (12) that respectively drive the two spray head assemblies (3, 6) to move linearly. During spray coating of a primer, the two spray head assemblies (3, 6) operate cooperatively, and the telescopic pushing mechanisms (12) drive the spray head assemblies (3, 6) to move within a travel range. During movement, the spray head assemblies (3, 6) spray-coat a steel member area covered thereby, wherein the front spray head assembly (3, 6) in the movement direction of the planar movement mechanism performs primary spray-coating, and the rear spray head assembly (3, 6) performs compensatory spray-coating on an area where a detected dent is located. By means of the apparatus, a primary spray-coating result is inspected in real time, and secondary spray-coating for compensation is performed on a dent portion in a timely manner, such that the surface of a primer is uniform, and therefore, the thickness and surface flatness of a finishing coat are within an ideal range.

IPC Classes  ?

• B05B 16/20 - Arrangements for spraying in combination with other operations, e.g. dryingArrangements enabling a combination of spraying operations
• B05B 13/04 - Means for supporting workArrangement or mounting of spray headsAdaptation or arrangement of means for feeding work the spray heads being moved during operation
• B05B 12/08 - Arrangements for controlling deliveryArrangements for controlling the spray area responsive to condition of liquid or other fluent material discharged, of ambient medium or of target
• B05B 15/68 - Arrangements for adjusting the position of spray heads
• B05D 1/02 - Processes for applying liquids or other fluent materials performed by spraying
• B05D 3/04 - Pretreatment of surfaces to which liquids or other fluent materials are to be appliedAfter-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by exposure to gases