Insulating frame for installing resistance grid and novel resistor for braking dumper

Abstract

The utility model relates to the technical field of vehicle braking, and discloses an insulating frame for mounting a resistance grid and a novel resistor for braking a dumper. The insulating frame comprises two symmetrically arranged hangers, a lower insulating plate mounted on a connecting plate between the two hangers, an upper insulating plate mounted on a mounting plate at the tops of the two hangers, an inner insulating plate fixedly mounted on the inner sides of the two hangers and an outer insulating plate arranged on the outer sides of the hangers, and the outer insulating plate is provided with an embedding groove; the hanging rack is embedded in the embedding groove of the outer insulating plate in a sinking manner; sinking grooves are formed in the two sides of the bottom of the lower insulating plate and are used for embedding the connecting plate of the hanging rack into the lower insulating plate in a sinking manner; and temperature-resistant insulating paste is arranged in the connecting bolts of the inner insulating plate, the outer insulating plate, the lower insulating plate and the hanger and the sinking grooves. The insulation frame solves the problem that a traditional installation frame and an installation box body are prone to breakdown, and meanwhile the novel resistor has the advantages of being novel in structure, easy to install and operate and easy to machine.

Description

TECHNICAL FIELD

[0001] The utility model relates to vehicle braking technical field especially, it relates to a kind of insulating frame for resistance barrier installation and novel resistance for dump truck braking, it is applicable to the braking system of mine dump truck. BACKGROUND

[0002] Mine dump truck is heavy in dead weight and load, when dump truck travels on long and spiral mine area road, it is often necessary to brake to reduce speed to face complex road environment, to ensure the safety of operating personnel and dump truck.The efficiency of conversion and consumption of residual electric energy during braking is determined by resistance barrier, the existing resistance barrier structure is complex, production and assembly are difficult and service life is short.

[0003] In view of the deficiencies of the existing resistance barrier structure, the applicant applied for a patent for a new type of resistance barrier on January 28, 2021, with application number CN202220239980.0, and further research found that this new type of resistance barrier still has the following deficiencies:

[0004] 1. The hanger and the side-out tap are fastened by bolts, only an inner insulating plate is provided on the inner side of the hanger, and the hanger is exposed as a whole. When working in a high humidity environment, it is easy to cause breakdown with the installation box, resulting in low insulation resistance.

[0005] 2. Since the insulator cannot be stably installed in the resistance barrier, it cannot be assembled into a whole with the resistance barrier body and the insulator and then installed in the installation frame, and there is a problem of difficult assembly.

[0006] 3. The resistance barrier needs to rely on three rows of insulators and screws for insulation and fixed installation, which is difficult to assemble, time-consuming and labor-intensive, and the insulator can only be installed from the side of the resistance barrier, which is difficult to install.

[0007] 4. The resistance barrier is punched from a whole strip, which needs to be repeatedly turned over during punching, resulting in low production efficiency and complex process operation. Moreover, after punching the reinforcing ribs and installation holes, positioning and bending are required, which is easy to cause errors and accumulation of deviations during bending of the whole strip, resulting in deviation of the insulator from the same center line and failure to meet the assembly requirements of the resistance barrier.

[0008] Therefore, the present application provides an insulating frame with good insulation and a novel resistance for dump truck braking with more reasonable structure design and simple installation operation to solve the above problems. UTILITY MODEL CONTENTS

[0009] The utility model aims at solving the technical problems existing in the prior art. To this end, the utility model provides an insulating frame with good insulation and a novel resistance for dump truck braking with more reasonable structure design and simple installation operation.

[0010] The utility model discloses a technical scheme that solves its technical problems:

[0011] First, provide a kind of insulating frame for resistance barrier installation, including two symmetrical hangings, lower insulating plate installed on the connecting plate between two hangings, upper insulating plate installed on the mounting plate of the top of two hangings and the inner insulating plate fixedly installed in the inner side of two hangings and the outer insulating plate arranged in the outer side of hanging, the embedding groove is opened on the outer insulating plate, and the hanging is embedded in the embedding groove of the outer insulating plate;The bottom of the lower insulating plate is provided with embedding groove on both sides, for embedding the connecting plate of hanging in the lower insulating plate;The inner insulating plate, outer insulating plate, lower insulating plate and the connecting bolt of hanging and embedding groove are all provided with temperature-resistant insulating glue.

[0012] In a preferred embodiment of the utility model, the outer insulating plate is made of SMC material, and the inner insulating plate is made of mica plate.

[0013] In a preferred embodiment of the utility model, the outer side of the outer insulating plate is provided with a countersunk hole for mounting the resistance barrier, and the inner side is provided with a positioning boss coaxial with the countersunk hole, and the hanging is provided with a positioning hole matched with the positioning boss.

[0014] Second, provide a kind of novel resistance for self-unloading vehicle brake, including the insulating frame for resistance barrier installation, resistance barrier and mounting screw rod, and the top and bottom of the resistance barrier are fixedly installed in the insulating frame by mounting screw rod.

[0015] In a preferred embodiment of the utility model, the resistance barrier includes resistance barrier body composed of a plurality of parallelly arranged and serially connected resistance bands, taps welded to both ends of the top of the resistance barrier body and isolation components for isolating each resistance band.

[0016] In a preferred embodiment of the utility model, the two ends of the resistance band are respectively provided with connecting ear plates protruding in opposite directions and parallel to the resistance band, and the two resistance bands are symmetrically arranged, and one end of the two resistance bands is overlapped and welded by the connecting ear plates;The connecting ear plates on both ends of the resistance band are provided with mounting holes.

[0017] In a preferred embodiment of the utility model, the isolation component includes isolation insulator, connecting insulator and locking insulator, one end of the isolation insulator is provided with a neck that can be inserted into the mounting hole of the resistance band, the neck is provided with external threads, and the other end is provided with a counterbore inserted with the neck;One end of the locking insulator is provided with a threaded hole threadedly connected with the neck of the isolation insulator;One end of the connecting insulator is provided with a protruding column inserted with the counterbore of the isolation insulator, and the other end is provided with a threaded column threadedly connected with the threaded hole of the locking insulator.

[0018] In a preferred embodiment of the utility model, the isolation assembly further comprises a mica tube, the mica tube penetrates the center through hole of the isolation assembly and is sleeved on the mounting screw.

[0019] In a preferred embodiment of the utility model, the inner support assembly is composed of an insulating screw and two insulating nuts, the middle part of the resistance band is provided with a through hole, the inner support assembly is installed on the resistance band every interval, the insulating screw penetrates the through hole on the resistance band, and the two ends are fastened by the insulating nuts, and the thickness of the insulating nut is equal to the width between the two adjacent resistance bands.

[0020] In a preferred embodiment of the utility model, the insulating nut and the insulating screw are made of 95 porcelain.

[0021] Compared with the prior art, the utility model has the beneficial effects that:

[0022] 1、 the utility model discloses a kind of installation frame, it is by the way that the hanging rack is embedded in the embedding groove of outer insulation plate, the connecting plate of the bottom of hanging rack is also embedded in the sinking groove of lower insulation plate, and is covered by temperature-resistant insulating glue, solve the problem that traditional installation frame's hanging rack and side exit tap are fastened by bolt, in high humidity environment, it is prone to breakdown with installation box, ensure the reliability of equipment operation;

[0023] 2、 the resistance grid is welded by multiple resistance bands, compared with the resistance grid that is bent by whole resistance band, optimize process operation step, can effectively improve production efficiency, reduce labor intensity, while resistance band is uniformly pressed, consistency is good, assembly precision is high;In addition, the resistance grid structure can install insulator from the end of resistance band, improves the installation efficiency of insulator, reduces the installation difficulty of insulator;

[0024] 3、 the isolation assembly is designed, so that the isolation insulator can be stably assembled with the resistance grid body as a whole, the mica tube and the mounting screw are conveniently penetrated and installed, and the installation difficulty of the resistance grid and the installation frame is reduced;

[0025] 4、 the inner support assembly is used to replace the installation of traditional middle insulator and screw, can meet the process requirement of preventing resistance band from being short-circuited due to thermal deformation, and the insulation measures between screw, insulator and installation frame do not need to be handled. BRIEF DESCRIPTION OF DRAWINGS

[0026] In order to more clearly illustrate the technical scheme in the embodiments of the utility model, the drawings needed to be used in the embodiment description will be briefly introduced as follows. Obviously, the drawings in the following description are only some embodiments of the utility model, and those skilled in the art can also obtain other drawings according to these drawings without creating any creative labor, wherein:

[0027] Figure 1 is a structure schematic view of the novel resistance for the self-unloading vehicle brake provided by the utility model, which adopts the side-out tap;

[0028] Figure 2 is a structure schematic view of the novel resistance for the self-unloading vehicle brake provided by the utility model, which adopts the up-out tap;

[0029] Figure 3 is a structure view of the hanger provided by the utility model;

[0030] Figure 4 is a structure view of the outer insulation board provided by the utility model;

[0031] Figure 5 is Figure 4 the A-A sectional view provided by the utility model;

[0032] Figure 6 is a structure view of the lower insulation board provided by the utility model;

[0033] Figure 7 is a structure schematic view of the resistance grid provided by the utility model;

[0034] Figure 8 is Figure 7 the structure view of the resistance band provided by the utility model;

[0035] Figure 9 is Figure 7 the connection schematic view of the resistance band provided by the utility model;

[0036] Figure 10 is a structure view of the isolation insulator provided by the utility model;

[0037] Figure 11 is a structure view of the connection insulator provided by the utility model;

[0038] Figure 12 is a structure view of the locking insulator provided by the utility model.

[0039] In the drawings, the component list represented by each mark is as follows:

[0040] 1-resistance grid, 1.1-resistance band, 1.1.1-connection lug, 1.2-tap, 1.3-isolation insulator, 1.3.1-bulb, 1.3.2-counter bore, 1.4-connection insulator, 1.4.1-bulb, 1.4.2-stud, 1.5-locking insulator, 1.6-mica tube, 1.7-insulating screw, 1.8-insulating nut, 1.5.1-screw hole, 2-insulating frame, 2.1-hanging bracket, 2.1.1-connection plate, 2.1.2-mounting plate, 2.2-lower insulating plate, 2.2.1-sunk groove, 2.3-upper insulating plate, 2.4-inner insulating plate, 2.5-outer insulating plate, 2.5.1-embedded groove, 2.5.2-counter bore, 2.5.3-positioning boss, 3-mounting screw, 4-temperature-resistant insulating glue. DETAILED DESCRIPTION

[0041] It should be understood that the specific embodiments described herein are merely exemplary and do not limit the present application.

[0042] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0043] In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as limiting the devices or elements referred to have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present application; the terms "mounting", "connecting" and "connecting" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0044] In addition, the technical solutions of each embodiment can be combined with each other, but it must be based on the fact that a person skilled in the art can realize it, when the combination of technical solutions appears contradictory or unachievable, it should be considered that the combination of technical solutions does not exist, and is not within the scope of protection required by the present application.

[0045] Embodiment one

[0046] The embodiment provides a new type of resistance for a self-unloading vehicle brake, as shown in the accompanying drawings Figure 1 or the accompanying drawings Figure 2 As shown in the accompanying drawings, the resistance grid 1, the insulating frame 2 for mounting the resistance grid and the mounting screw 3 for fixing the resistance grid in the insulating frame, wherein:

[0047] As shown in the accompanying drawings Figure 1 or the accompanying drawings Figure 2 , the accompanying drawings Figure 3 to the accompanying drawings Figure 5 As shown in the accompanying drawings, the insulating frame 2 comprises two symmetrically arranged hangers 2.1, a lower insulating plate 2.2 mounted on the connecting plate 2.1.1 between the two hangers 2.1, an upper insulating plate 2.3 mounted on the mounting plate 2.1.2 on the top of the two hangers 2.1, an inner insulating plate 2.4 fixedly mounted on the inner side of the two hangers 2.1 and an outer insulating plate 2.5 mounted on the outer side of the two hangers 2.1. As shown in the accompanying drawings Figure 4 As shown in the accompanying drawings, the outer insulating plate 2.5 is provided with an embedding groove 2.5.1, and the hanger 2.1 is embedded in the embedding groove 2.5.1 of the outer insulating plate 2.5; the bottom of the lower insulating plate 2.2 is provided with a sinking groove 2.2.1, and the connecting plate 2.1.1 of the hanger 2.1 is embedded in the sinking groove 2.2.1 of the lower insulating plate 2.2; the inner insulating plate 2.4, the outer insulating plate 2.5, the lower insulating plate 2.2, the connecting bolt of the hanger 2.1 and the sinking groove 2.2.1 are all provided with the temperature-resistant insulating glue 4.

[0048] The embodiment solves the problem that the hangers of the traditional mounting frame and the side-out taps are fastened by bolts, which are prone to breakdown with the mounting box in a high-humidity environment, and guarantees the reliability of the equipment operation.

[0049] Preferably, the outer insulating plate 2.5 is made of SMC material, has excellent mechanical properties, good insulating properties and corrosion resistance, and has the advantages of lightweight, thereby reducing the weight of the insulating frame; the inner insulating plate 2.4 is made of mica plate, preferably golden mica plate.

[0050] Preferably, the outer side of the outer insulating plate 2.5 is provided with a countersunk hole 2.5.2 for mounting the resistance grid 1, the inner side is provided with a positioning boss 2.5.3 coaxial with the countersunk hole, and the hanger 2.1 is provided with a positioning hole matched with the positioning boss 2.5.3. This design facilitates the positioning and installation of the hanger, and the countersunk hole also serves as a mounting hole for the mounting screw.

[0051] Preferably, the connecting plate 2.1.1 of the bracket 2.1 has screw holes on both sides for fixing the lower insulating plate, and the distance between the two screw holes is greater than the thickness of the resistor grid. This design avoids tool interference when assembling and disassembling the lower insulating plate, and is more convenient than using fasteners in the middle of the lower insulating plate.

[0052] After the resistor grid is installed using mounting screws, the ends of the mounting screws are also coated with heat-resistant insulating adhesive to achieve insulation.

[0053] Example 2

[0054] Based on Example 1, this example further optimizes the design of the resistor gate, as shown in the attached figure. Figure 7 As shown, the resistor grid 1 includes a resistor grid body composed of several resistor strips 1.1 arranged in parallel and connected in series, taps 1.2 welded to both ends of the top of the resistor grid body, and an isolation component for isolating each resistor strip 1.1.

[0055] Preferred options are listed below. Figure 9 As shown, each end of the resistor strip 1.1 has a connecting lug 1.1.1 protruding in opposite directions and parallel to the resistor strip. Adjacent resistor strips 1.1 are symmetrically arranged, and one end of each is welded together by the connecting lug 1.1.1. Specifically, during welding, the two resistor strips are symmetrically arranged, with the connecting lugs at one end overlapping and the connecting lugs at the other end separated. The two overlapping connecting lugs are welded together, and then the resistor strips are welded one by one to complete the welding of the entire resistor grid. In this embodiment, roll welding is preferably used. (See attached...) Figure 8 As shown, the connecting lugs 1.1.1 at both ends of the resistor strip 1.1 are provided with mounting holes for fixing the resistor grid 1 within the insulating frame 2. In this embodiment, the mounting holes are preferably oval holes. This design can eliminate manufacturing errors of the resistor strip and ensure that it can be assembled smoothly. Preferably, the resistor strip 1.1 is stamped with reinforcing ribs (not shown in the figure) along its length to increase the bending strength of the resistor strip.

[0056] The resistor grid in this embodiment solves the problems of low manufacturing efficiency, complicated operation, and easy error and deviation accumulation caused by bending in traditional bending processes. The resistor grid with this structure allows the insulator to be installed from the end and side of the resistor strip, which reduces the installation difficulty of the insulator and improves the installation efficiency of the insulator.

[0057] Specifically, the tap 1.2 can be as shown in the attached figure. Figure 1 The side-extending tap shown can also be as attached. Figure 2 The upper protruding tap is shown.

[0058] Example 3

[0059] On the basis of embodiment two, the isolation assembly is designed, as shown in the accompanying Figure 7 , the accompanying Figure 10 , the accompanying Figure 12 , the accompanying

[0060] One end of the isolation insulator 1.3 is provided with a protruding neck 1.3.1 which can be inserted into the mounting hole of the resistance band 1.1, and an outer thread is provided on the protruding neck, and the other end is provided with a counterbore 1.3.2 which is inserted into the protruding neck 1.3.1; one end of the locking insulator 1.5 is provided with a threaded hole 1.5.1 which is threadedly connected with the protruding neck 1.3.1 of the isolation insulator 1.3; one end of the connecting insulator 1.4 is provided with a protruding column 1.4.1 which is inserted into the counterbore 1.3.2 of the isolation insulator 1.3, and the other end is provided with a threaded column 1.4.2 which is threadedly connected with the threaded hole 1.5.1 of the locking insulator 1.5.

[0061] The connecting ear plates 1.1.1 between the adjacent two resistance bands 1.1 of the resistance barrier 1 are isolated by the isolation insulator 1.3, and the two ends are fixed by the locking insulator 1.5 and the connecting insulator 1.4 which are threadedly connected with the isolation insulator 1.3. The isolation assembly designed in this embodiment makes the isolation insulator be able to be stably assembled with the resistance barrier as a whole, facilitates the installation of the threaded rod, and reduces the assembly difficulty of the resistance barrier and the insulating frame.

[0062] Further, the isolation assembly further comprises a mica tube 1.6 which penetrates the center through hole of the isolation assembly and is sleeved on the mounting threaded rod 3, and is used for insulating between the mounting threaded rod and the resistance band during the installation of the resistance barrier, so as to prevent the isolation assembly from being damaged and the resistance band from being conducted with the mounting threaded rod.

[0063] Embodiment four

[0064] On the basis of embodiment two or embodiment three, the resistance barrier 1 is further optimized and designed, as shown in the accompanying Figure 7 and the accompanying Figure 9 , the accompanying

[0065] The specific mounting structure of the inner support assembly is that the middle part of the resistance band 1.1 is provided with a through hole, the inner support assembly is mounted on the resistance grid 1 every interval of a resistance band 1.1, the insulating screw rod 1.7 passes through the through hole on the resistance band 1.1, and both ends are fastened by insulating nuts 1.8, and the thickness of the insulating nuts is equal to the width between the adjacent two resistance bands.

[0066] The embodiment sets the inner support assembly in the middle part of the resistance grid, can keep the distance between the adjacent two resistance bands by the insulating nuts, plays the role of isolating the resistance bands, can effectively prevent the resistance bands from being short-circuited due to thermal deformation. Compared with the mode of isolating by insulating porcelain and fixing by a screw rod, the mode does not need to additionally perform the insulation treatment between the screw rod, the insulating sub and the mounting frame.

[0067] The above only describes the embodiments of the utility model, and does not limit the patent range of the utility model, and any equivalent structure or equivalent process transformation by using the utility model specification content, or direct or indirect application in other related technical fields, are all included in the patent protection range of the utility model.

Claims

1. An insulation frame for mounting a resistive grid, comprising two symmetrically arranged hangers, a lower insulation plate mounted on a connecting plate between the two hangers, an upper insulation plate mounted on a mounting plate at the top of the two hangers, and an inner insulation plate fixedly mounted on the inner side of the two hangers; characterized in that: The outer insulation board is provided with an embedding groove, and the hanger is embedded in the embedding groove of the outer insulation board; The lower insulation board is provided with embedding grooves on both sides of the bottom, and the connecting plate of the hanger is embedded in the embedding grooves of the lower insulation board. The inner insulation board, the outer insulation board, the lower insulation board, the connecting bolt of the hanger and the embedding grooves are all provided with temperature-resistant insulation glue.

2. The insulation frame for resistance barrier installation according to claim 1, characterized by: The outer insulation board is made of SMC material, and the inner insulation board is made of mica board.

3. The insulation frame for mounting a resistance barrier according to claim 1, characterized in that: The outer side of the outer insulation board is provided with a countersunk hole for installing a resistance grid, and the inner side is provided with a positioning boss coaxial with the countersunk hole, and the hanger is provided with a positioning hole matched with the positioning boss.

4. A new type of resistance for the braking of a dump truck, characterized in that: The resistance grid installation insulation frame, the resistance grid and the mounting screw are provided.

5. A new type of resistance for the dump truck brake according to claim 4, characterized in that: The resistance grid comprises a resistance grid body composed of a plurality of parallel resistance bands connected in series, a tap welded at both ends of the top of the resistance grid body and an isolation component for isolating each resistance band.

6. A new type of resistance for the dump truck brake according to claim 5, characterized in that: The two ends of the resistance band are respectively provided with connecting ear plates protruding in opposite directions and parallel to the resistance band, and the two resistance bands are symmetrically arranged, and one end of the two resistance bands is overlapped and welded through the connecting ear plates.

7. A new type of resistance for the dump truck brake according to claim 5, characterized in that: The isolation component comprises an isolation insulator, a connecting insulator and a locking insulator.

8. A new resistance for dump truck braking according to claim 7, characterized in that: The isolation component further comprises a mica tube which penetrates the center through hole of the isolation component and is sleeved on the mounting screw.

9. A new type of resistance for dump truck braking according to claim 5 characterized by: The inner support component comprises an insulation screw and two insulation nuts.

10. A new resistance for dump truck braking according to claim 9, characterized in that: The insulation nut and the insulation screw are both made of 95 porcelain.

Images